Elijah P
CyaSSL changed for NucleoF401RE board: implemented random and time functions for build. (Has trouble with wildcard domains like *.google.com, *.yahoo.com)
Diff: src/internal.c
- Revision:
- 4:e505054279ed
- Parent:
- 0:1239e9b70ca2
--- a/src/internal.c Wed Dec 03 05:24:18 2014 +0000
+++ b/src/internal.c Wed Jan 14 22:07:14 2015 +0000
@@ -1,11301 +1,11301 @@
-/* internal.c
- *
- * Copyright (C) 2006-2014 wolfSSL Inc.
- *
- * This file is part of CyaSSL.
- *
- * CyaSSL is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * CyaSSL is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
- */
-
-
-#ifdef HAVE_CONFIG_H
- #include <config.h>
-#endif
-
-#include <cyassl/ctaocrypt/settings.h>
-
-#include <cyassl/internal.h>
-#include <cyassl/error-ssl.h>
-#include <cyassl/ctaocrypt/asn.h>
-
-#ifdef HAVE_LIBZ
- #include "zlib.h"
-#endif
-
-#ifdef HAVE_NTRU
- #include "crypto_ntru.h"
-#endif
-
-#if defined(DEBUG_CYASSL) || defined(SHOW_SECRETS)
- #ifdef FREESCALE_MQX
- #include <fio.h>
- #else
- #include <stdio.h>
- #endif
-#endif
-
-#ifdef __sun
- #include <sys/filio.h>
-#endif
-
-#ifndef TRUE
- #define TRUE 1
-#endif
-#ifndef FALSE
- #define FALSE 0
-#endif
-
-
-#if defined(OPENSSL_EXTRA) && defined(NO_DH)
- #error OPENSSL_EXTRA needs DH, please remove NO_DH
-#endif
-
-#if defined(CYASSL_CALLBACKS) && !defined(LARGE_STATIC_BUFFERS)
- #error \
-CYASSL_CALLBACKS needs LARGE_STATIC_BUFFERS, please add LARGE_STATIC_BUFFERS
-#endif
-
-
-#ifndef NO_CYASSL_CLIENT
- static int DoHelloVerifyRequest(CYASSL* ssl, const byte* input, word32*,
- word32);
- static int DoServerHello(CYASSL* ssl, const byte* input, word32*, word32);
- static int DoServerKeyExchange(CYASSL* ssl, const byte* input, word32*,
- word32);
- #ifndef NO_CERTS
- static int DoCertificateRequest(CYASSL* ssl, const byte* input, word32*,
- word32);
- #endif
-#endif
-
-
-#ifndef NO_CYASSL_SERVER
- static int DoClientHello(CYASSL* ssl, const byte* input, word32*, word32);
- static int DoClientKeyExchange(CYASSL* ssl, byte* input, word32*, word32);
- #if !defined(NO_RSA) || defined(HAVE_ECC)
- static int DoCertificateVerify(CYASSL* ssl, byte*, word32*, word32);
- #endif
-#endif
-
-
-#ifdef CYASSL_DTLS
- static INLINE int DtlsCheckWindow(DtlsState* state);
- static INLINE int DtlsUpdateWindow(DtlsState* state);
-#endif
-
-
-typedef enum {
- doProcessInit = 0,
-#ifndef NO_CYASSL_SERVER
- runProcessOldClientHello,
-#endif
- getRecordLayerHeader,
- getData,
- runProcessingOneMessage
-} processReply;
-
-#ifndef NO_OLD_TLS
-static int SSL_hmac(CYASSL* ssl, byte* digest, const byte* in, word32 sz,
- int content, int verify);
-
-#endif
-
-#ifndef NO_CERTS
-static int BuildCertHashes(CYASSL* ssl, Hashes* hashes);
-#endif
-
-static void PickHashSigAlgo(CYASSL* ssl,
- const byte* hashSigAlgo, word32 hashSigAlgoSz);
-
-#ifndef min
-
- static INLINE word32 min(word32 a, word32 b)
- {
- return a > b ? b : a;
- }
-
-#endif /* min */
-
-
-int IsTLS(const CYASSL* ssl)
-{
- if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_MINOR)
- return 1;
-
- return 0;
-}
-
-
-int IsAtLeastTLSv1_2(const CYASSL* ssl)
-{
- if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_2_MINOR)
- return 1;
- if (ssl->version.major == DTLS_MAJOR && ssl->version.minor <= DTLSv1_2_MINOR)
- return 1;
-
- return 0;
-}
-
-
-#ifdef HAVE_NTRU
-
-static byte GetEntropy(ENTROPY_CMD cmd, byte* out)
-{
- /* TODO: add locking? */
- static RNG rng;
-
- if (cmd == INIT)
- return (InitRng(&rng) == 0) ? 1 : 0;
-
- if (out == NULL)
- return 0;
-
- if (cmd == GET_BYTE_OF_ENTROPY)
- return (RNG_GenerateBlock(&rng, out, 1) == 0) ? 1 : 0;
-
- if (cmd == GET_NUM_BYTES_PER_BYTE_OF_ENTROPY) {
- *out = 1;
- return 1;
- }
-
- return 0;
-}
-
-#endif /* HAVE_NTRU */
-
-/* used by ssl.c too */
-void c32to24(word32 in, word24 out)
-{
- out[0] = (in >> 16) & 0xff;
- out[1] = (in >> 8) & 0xff;
- out[2] = in & 0xff;
-}
-
-
-#ifdef CYASSL_DTLS
-
-static INLINE void c32to48(word32 in, byte out[6])
-{
- out[0] = 0;
- out[1] = 0;
- out[2] = (in >> 24) & 0xff;
- out[3] = (in >> 16) & 0xff;
- out[4] = (in >> 8) & 0xff;
- out[5] = in & 0xff;
-}
-
-#endif /* CYASSL_DTLS */
-
-
-/* convert 16 bit integer to opaque */
-static INLINE void c16toa(word16 u16, byte* c)
-{
- c[0] = (u16 >> 8) & 0xff;
- c[1] = u16 & 0xff;
-}
-
-
-/* convert 32 bit integer to opaque */
-static INLINE void c32toa(word32 u32, byte* c)
-{
- c[0] = (u32 >> 24) & 0xff;
- c[1] = (u32 >> 16) & 0xff;
- c[2] = (u32 >> 8) & 0xff;
- c[3] = u32 & 0xff;
-}
-
-
-/* convert a 24 bit integer into a 32 bit one */
-static INLINE void c24to32(const word24 u24, word32* u32)
-{
- *u32 = (u24[0] << 16) | (u24[1] << 8) | u24[2];
-}
-
-
-/* convert opaque to 16 bit integer */
-static INLINE void ato16(const byte* c, word16* u16)
-{
- *u16 = (word16) ((c[0] << 8) | (c[1]));
-}
-
-
-#ifdef CYASSL_DTLS
-
-/* convert opaque to 32 bit integer */
-static INLINE void ato32(const byte* c, word32* u32)
-{
- *u32 = (c[0] << 24) | (c[1] << 16) | (c[2] << 8) | c[3];
-}
-
-#endif /* CYASSL_DTLS */
-
-
-#ifdef HAVE_LIBZ
-
- /* alloc user allocs to work with zlib */
- static void* myAlloc(void* opaque, unsigned int item, unsigned int size)
- {
- (void)opaque;
- return XMALLOC(item * size, opaque, DYNAMIC_TYPE_LIBZ);
- }
-
-
- static void myFree(void* opaque, void* memory)
- {
- (void)opaque;
- XFREE(memory, opaque, DYNAMIC_TYPE_LIBZ);
- }
-
-
- /* init zlib comp/decomp streams, 0 on success */
- static int InitStreams(CYASSL* ssl)
- {
- ssl->c_stream.zalloc = (alloc_func)myAlloc;
- ssl->c_stream.zfree = (free_func)myFree;
- ssl->c_stream.opaque = (voidpf)ssl->heap;
-
- if (deflateInit(&ssl->c_stream, Z_DEFAULT_COMPRESSION) != Z_OK)
- return ZLIB_INIT_ERROR;
-
- ssl->didStreamInit = 1;
-
- ssl->d_stream.zalloc = (alloc_func)myAlloc;
- ssl->d_stream.zfree = (free_func)myFree;
- ssl->d_stream.opaque = (voidpf)ssl->heap;
-
- if (inflateInit(&ssl->d_stream) != Z_OK) return ZLIB_INIT_ERROR;
-
- return 0;
- }
-
-
- static void FreeStreams(CYASSL* ssl)
- {
- if (ssl->didStreamInit) {
- deflateEnd(&ssl->c_stream);
- inflateEnd(&ssl->d_stream);
- }
- }
-
-
- /* compress in to out, return out size or error */
- static int myCompress(CYASSL* ssl, byte* in, int inSz, byte* out, int outSz)
- {
- int err;
- int currTotal = (int)ssl->c_stream.total_out;
-
- ssl->c_stream.next_in = in;
- ssl->c_stream.avail_in = inSz;
- ssl->c_stream.next_out = out;
- ssl->c_stream.avail_out = outSz;
-
- err = deflate(&ssl->c_stream, Z_SYNC_FLUSH);
- if (err != Z_OK && err != Z_STREAM_END) return ZLIB_COMPRESS_ERROR;
-
- return (int)ssl->c_stream.total_out - currTotal;
- }
-
-
- /* decompress in to out, returnn out size or error */
- static int myDeCompress(CYASSL* ssl, byte* in,int inSz, byte* out,int outSz)
- {
- int err;
- int currTotal = (int)ssl->d_stream.total_out;
-
- ssl->d_stream.next_in = in;
- ssl->d_stream.avail_in = inSz;
- ssl->d_stream.next_out = out;
- ssl->d_stream.avail_out = outSz;
-
- err = inflate(&ssl->d_stream, Z_SYNC_FLUSH);
- if (err != Z_OK && err != Z_STREAM_END) return ZLIB_DECOMPRESS_ERROR;
-
- return (int)ssl->d_stream.total_out - currTotal;
- }
-
-#endif /* HAVE_LIBZ */
-
-
-void InitSSL_Method(CYASSL_METHOD* method, ProtocolVersion pv)
-{
- method->version = pv;
- method->side = CYASSL_CLIENT_END;
- method->downgrade = 0;
-}
-
-
-/* Initialze SSL context, return 0 on success */
-int InitSSL_Ctx(CYASSL_CTX* ctx, CYASSL_METHOD* method)
-{
- ctx->method = method;
- ctx->refCount = 1; /* so either CTX_free or SSL_free can release */
-#ifndef NO_CERTS
- ctx->certificate.buffer = 0;
- ctx->certChain.buffer = 0;
- ctx->privateKey.buffer = 0;
- ctx->serverDH_P.buffer = 0;
- ctx->serverDH_G.buffer = 0;
-#endif
- ctx->haveDH = 0;
- ctx->haveNTRU = 0; /* start off */
- ctx->haveECDSAsig = 0; /* start off */
- ctx->haveStaticECC = 0; /* start off */
- ctx->heap = ctx; /* defaults to self */
-#ifndef NO_PSK
- ctx->havePSK = 0;
- ctx->server_hint[0] = 0;
- ctx->client_psk_cb = 0;
- ctx->server_psk_cb = 0;
-#endif /* NO_PSK */
-#ifdef HAVE_ECC
- ctx->eccTempKeySz = ECDHE_SIZE;
-#endif
-
-#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
- ctx->passwd_cb = 0;
- ctx->userdata = 0;
-#endif /* OPENSSL_EXTRA */
-
- ctx->timeout = DEFAULT_TIMEOUT;
-
-#ifndef CYASSL_USER_IO
- ctx->CBIORecv = EmbedReceive;
- ctx->CBIOSend = EmbedSend;
- #ifdef CYASSL_DTLS
- if (method->version.major == DTLS_MAJOR) {
- ctx->CBIORecv = EmbedReceiveFrom;
- ctx->CBIOSend = EmbedSendTo;
- ctx->CBIOCookie = EmbedGenerateCookie;
- }
- #endif
-#else
- /* user will set */
- ctx->CBIORecv = NULL;
- ctx->CBIOSend = NULL;
- #ifdef CYASSL_DTLS
- ctx->CBIOCookie = NULL;
- #endif
-#endif /* CYASSL_USER_IO */
-#ifdef HAVE_NETX
- ctx->CBIORecv = NetX_Receive;
- ctx->CBIOSend = NetX_Send;
-#endif
- ctx->partialWrite = 0;
- ctx->verifyCallback = 0;
-
-#ifndef NO_CERTS
- ctx->cm = CyaSSL_CertManagerNew();
-#endif
-#ifdef HAVE_NTRU
- if (method->side == CYASSL_CLIENT_END)
- ctx->haveNTRU = 1; /* always on cliet side */
- /* server can turn on by loading key */
-#endif
-#ifdef HAVE_ECC
- if (method->side == CYASSL_CLIENT_END) {
- ctx->haveECDSAsig = 1; /* always on cliet side */
- ctx->haveStaticECC = 1; /* server can turn on by loading key */
- }
-#endif
- ctx->suites.setSuites = 0; /* user hasn't set yet */
- /* remove DH later if server didn't set, add psk later */
- InitSuites(&ctx->suites, method->version, TRUE, FALSE, TRUE, ctx->haveNTRU,
- ctx->haveECDSAsig, ctx->haveStaticECC, method->side);
- ctx->verifyPeer = 0;
- ctx->verifyNone = 0;
- ctx->failNoCert = 0;
- ctx->sessionCacheOff = 0; /* initially on */
- ctx->sessionCacheFlushOff = 0; /* initially on */
- ctx->sendVerify = 0;
- ctx->quietShutdown = 0;
- ctx->groupMessages = 0;
-#ifdef HAVE_CAVIUM
- ctx->devId = NO_CAVIUM_DEVICE;
-#endif
-#ifdef HAVE_TLS_EXTENSIONS
- ctx->extensions = NULL;
-#endif
-#ifdef ATOMIC_USER
- ctx->MacEncryptCb = NULL;
- ctx->DecryptVerifyCb = NULL;
-#endif
-#ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ctx->EccSignCb = NULL;
- ctx->EccVerifyCb = NULL;
- #endif /* HAVE_ECC */
- #ifndef NO_RSA
- ctx->RsaSignCb = NULL;
- ctx->RsaVerifyCb = NULL;
- ctx->RsaEncCb = NULL;
- ctx->RsaDecCb = NULL;
- #endif /* NO_RSA */
-#endif /* HAVE_PK_CALLBACKS */
-
- if (InitMutex(&ctx->countMutex) < 0) {
- CYASSL_MSG("Mutex error on CTX init");
- return BAD_MUTEX_E;
- }
-#ifndef NO_CERTS
- if (ctx->cm == NULL) {
- CYASSL_MSG("Bad Cert Manager New");
- return BAD_CERT_MANAGER_ERROR;
- }
-#endif
- return 0;
-}
-
-
-/* In case contexts are held in array and don't want to free actual ctx */
-void SSL_CtxResourceFree(CYASSL_CTX* ctx)
-{
- XFREE(ctx->method, ctx->heap, DYNAMIC_TYPE_METHOD);
-
-#ifndef NO_CERTS
- XFREE(ctx->serverDH_G.buffer, ctx->heap, DYNAMIC_TYPE_DH);
- XFREE(ctx->serverDH_P.buffer, ctx->heap, DYNAMIC_TYPE_DH);
- XFREE(ctx->privateKey.buffer, ctx->heap, DYNAMIC_TYPE_KEY);
- XFREE(ctx->certificate.buffer, ctx->heap, DYNAMIC_TYPE_CERT);
- XFREE(ctx->certChain.buffer, ctx->heap, DYNAMIC_TYPE_CERT);
- CyaSSL_CertManagerFree(ctx->cm);
-#endif
-#ifdef HAVE_TLS_EXTENSIONS
- TLSX_FreeAll(ctx->extensions);
-#endif
-}
-
-
-void FreeSSL_Ctx(CYASSL_CTX* ctx)
-{
- int doFree = 0;
-
- if (LockMutex(&ctx->countMutex) != 0) {
- CYASSL_MSG("Couldn't lock count mutex");
- return;
- }
- ctx->refCount--;
- if (ctx->refCount == 0)
- doFree = 1;
- UnLockMutex(&ctx->countMutex);
-
- if (doFree) {
- CYASSL_MSG("CTX ref count down to 0, doing full free");
- SSL_CtxResourceFree(ctx);
- FreeMutex(&ctx->countMutex);
- XFREE(ctx, ctx->heap, DYNAMIC_TYPE_CTX);
- }
- else {
- (void)ctx;
- CYASSL_MSG("CTX ref count not 0 yet, no free");
- }
-}
-
-
-/* Set cipher pointers to null */
-void InitCiphers(CYASSL* ssl)
-{
-#ifdef BUILD_ARC4
- ssl->encrypt.arc4 = NULL;
- ssl->decrypt.arc4 = NULL;
-#endif
-#ifdef BUILD_DES3
- ssl->encrypt.des3 = NULL;
- ssl->decrypt.des3 = NULL;
-#endif
-#ifdef BUILD_AES
- ssl->encrypt.aes = NULL;
- ssl->decrypt.aes = NULL;
-#endif
-#ifdef HAVE_CAMELLIA
- ssl->encrypt.cam = NULL;
- ssl->decrypt.cam = NULL;
-#endif
-#ifdef HAVE_HC128
- ssl->encrypt.hc128 = NULL;
- ssl->decrypt.hc128 = NULL;
-#endif
-#ifdef BUILD_RABBIT
- ssl->encrypt.rabbit = NULL;
- ssl->decrypt.rabbit = NULL;
-#endif
- ssl->encrypt.setup = 0;
- ssl->decrypt.setup = 0;
-}
-
-
-/* Free ciphers */
-void FreeCiphers(CYASSL* ssl)
-{
- (void)ssl;
-#ifdef BUILD_ARC4
- #ifdef HAVE_CAVIUM
- if (ssl->devId != NO_CAVIUM_DEVICE) {
- Arc4FreeCavium(ssl->encrypt.arc4);
- Arc4FreeCavium(ssl->decrypt.arc4);
- }
- #endif
- XFREE(ssl->encrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-#ifdef BUILD_DES3
- #ifdef HAVE_CAVIUM
- if (ssl->devId != NO_CAVIUM_DEVICE) {
- Des3_FreeCavium(ssl->encrypt.des3);
- Des3_FreeCavium(ssl->decrypt.des3);
- }
- #endif
- XFREE(ssl->encrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-#ifdef BUILD_AES
- #ifdef HAVE_CAVIUM
- if (ssl->devId != NO_CAVIUM_DEVICE) {
- AesFreeCavium(ssl->encrypt.aes);
- AesFreeCavium(ssl->decrypt.aes);
- }
- #endif
- XFREE(ssl->encrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-#ifdef HAVE_CAMELLIA
- XFREE(ssl->encrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-#ifdef HAVE_HC128
- XFREE(ssl->encrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-#ifdef BUILD_RABBIT
- XFREE(ssl->encrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER);
- XFREE(ssl->decrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER);
-#endif
-}
-
-
-void InitCipherSpecs(CipherSpecs* cs)
-{
- cs->bulk_cipher_algorithm = INVALID_BYTE;
- cs->cipher_type = INVALID_BYTE;
- cs->mac_algorithm = INVALID_BYTE;
- cs->kea = INVALID_BYTE;
- cs->sig_algo = INVALID_BYTE;
-
- cs->hash_size = 0;
- cs->static_ecdh = 0;
- cs->key_size = 0;
- cs->iv_size = 0;
- cs->block_size = 0;
-}
-
-
-void InitSuites(Suites* suites, ProtocolVersion pv, byte haveRSA, byte havePSK,
- byte haveDH, byte haveNTRU, byte haveECDSAsig,
- byte haveStaticECC, int side)
-{
- word16 idx = 0;
- int tls = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_MINOR;
- int tls1_2 = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_2_MINOR;
- int haveRSAsig = 1;
-
- (void)tls; /* shut up compiler */
- (void)tls1_2;
- (void)haveDH;
- (void)havePSK;
- (void)haveNTRU;
- (void)haveStaticECC;
-
- if (suites == NULL) {
- CYASSL_MSG("InitSuites pointer error");
- return;
- }
-
- if (suites->setSuites)
- return; /* trust user settings, don't override */
-
- if (side == CYASSL_SERVER_END && haveStaticECC) {
- haveRSA = 0; /* can't do RSA with ECDSA key */
- (void)haveRSA; /* some builds won't read */
- }
-
- if (side == CYASSL_SERVER_END && haveECDSAsig) {
- haveRSAsig = 0; /* can't have RSA sig if signed by ECDSA */
- (void)haveRSAsig; /* non ecc builds won't read */
- }
-
-#ifdef CYASSL_DTLS
- if (pv.major == DTLS_MAJOR) {
- tls = 1;
- tls1_2 = pv.minor <= DTLSv1_2_MINOR;
- }
-#endif
-
-#ifdef HAVE_RENEGOTIATION_INDICATION
- if (side == CYASSL_CLIENT_END) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_EMPTY_RENEGOTIATION_INFO_SCSV;
- }
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
- if (tls && haveNTRU && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
- if (tls && haveNTRU && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
- if (tls && haveNTRU && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_NTRU_RSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
- if (tls && haveNTRU && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveRSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- if (tls1_2 && haveRSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- if (tls1_2 && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- if (tls1_2 && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- if (tls && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- if (tls && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- if (tls && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- if (tls && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- if (tls && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- if (tls && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- if (tls && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- if (tls && haveECDSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- if (tls && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- if (tls && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
- if (tls && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- if (tls && haveRSAsig && haveStaticECC) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
- if (tls1_2 && haveECDSAsig) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_RSA_WITH_AES_128_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_RSA_WITH_AES_256_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- if (tls1_2 && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_256_GCM_SHA384;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_128_GCM_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
- if (tls1_2 && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
- if (tls && havePSK) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_PSK_WITH_AES_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
- if (tls && havePSK) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
- if (tls && havePSK) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
- if (tls && havePSK) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_PSK_WITH_AES_128_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
- if (tls && havePSK) {
- suites->suites[idx++] = ECC_BYTE;
- suites->suites[idx++] = TLS_PSK_WITH_AES_256_CCM_8;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
- if (tls && havePSK) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
- if (tls && havePSK) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA;
- }
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
- if (haveRSA ) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = SSL_RSA_WITH_RC4_128_SHA;
- }
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
- if (haveRSA ) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = SSL_RSA_WITH_RC4_128_MD5;
- }
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
- if (haveRSA ) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = SSL_RSA_WITH_3DES_EDE_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_HC_128_MD5;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_HC_128_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_HC_128_B2B256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_B2B256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_B2B256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_RABBIT_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_WITH_RSA_CAMELLIA_256_CBC_SHA
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- if (tls && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256;
- }
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- if (tls && haveDH && haveRSA) {
- suites->suites[idx++] = 0;
- suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256;
- }
-#endif
-
- suites->suiteSz = idx;
-
- {
- idx = 0;
-
- if (haveECDSAsig) {
- #ifdef CYASSL_SHA384
- suites->hashSigAlgo[idx++] = sha384_mac;
- suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- #endif
- #ifndef NO_SHA256
- suites->hashSigAlgo[idx++] = sha256_mac;
- suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- #endif
- #ifndef NO_SHA
- suites->hashSigAlgo[idx++] = sha_mac;
- suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- #endif
- }
-
- if (haveRSAsig) {
- #ifdef CYASSL_SHA384
- suites->hashSigAlgo[idx++] = sha384_mac;
- suites->hashSigAlgo[idx++] = rsa_sa_algo;
- #endif
- #ifndef NO_SHA256
- suites->hashSigAlgo[idx++] = sha256_mac;
- suites->hashSigAlgo[idx++] = rsa_sa_algo;
- #endif
- #ifndef NO_SHA
- suites->hashSigAlgo[idx++] = sha_mac;
- suites->hashSigAlgo[idx++] = rsa_sa_algo;
- #endif
- }
-
- suites->hashSigAlgoSz = idx;
- }
-}
-
-
-#ifndef NO_CERTS
-
-
-void InitX509Name(CYASSL_X509_NAME* name, int dynamicFlag)
-{
- (void)dynamicFlag;
-
- if (name != NULL) {
- name->name = name->staticName;
- name->dynamicName = 0;
-#ifdef OPENSSL_EXTRA
- XMEMSET(&name->fullName, 0, sizeof(DecodedName));
-#endif /* OPENSSL_EXTRA */
- }
-}
-
-
-void FreeX509Name(CYASSL_X509_NAME* name)
-{
- if (name != NULL) {
- if (name->dynamicName)
- XFREE(name->name, NULL, DYNAMIC_TYPE_SUBJECT_CN);
-#ifdef OPENSSL_EXTRA
- if (name->fullName.fullName != NULL)
- XFREE(name->fullName.fullName, NULL, DYNAMIC_TYPE_X509);
-#endif /* OPENSSL_EXTRA */
- }
-}
-
-
-/* Initialize CyaSSL X509 type */
-void InitX509(CYASSL_X509* x509, int dynamicFlag)
-{
- InitX509Name(&x509->issuer, 0);
- InitX509Name(&x509->subject, 0);
- x509->version = 0;
- x509->pubKey.buffer = NULL;
- x509->sig.buffer = NULL;
- x509->derCert.buffer = NULL;
- x509->altNames = NULL;
- x509->altNamesNext = NULL;
- x509->dynamicMemory = (byte)dynamicFlag;
- x509->isCa = 0;
-#ifdef HAVE_ECC
- x509->pkCurveOID = 0;
-#endif /* HAVE_ECC */
-#ifdef OPENSSL_EXTRA
- x509->pathLength = 0;
- x509->basicConstSet = 0;
- x509->basicConstCrit = 0;
- x509->basicConstPlSet = 0;
- x509->subjAltNameSet = 0;
- x509->subjAltNameCrit = 0;
- x509->authKeyIdSet = 0;
- x509->authKeyIdCrit = 0;
- x509->authKeyId = NULL;
- x509->authKeyIdSz = 0;
- x509->subjKeyIdSet = 0;
- x509->subjKeyIdCrit = 0;
- x509->subjKeyId = NULL;
- x509->subjKeyIdSz = 0;
- x509->keyUsageSet = 0;
- x509->keyUsageCrit = 0;
- x509->keyUsage = 0;
- #ifdef CYASSL_SEP
- x509->certPolicySet = 0;
- x509->certPolicyCrit = 0;
- #endif /* CYASSL_SEP */
-#endif /* OPENSSL_EXTRA */
-}
-
-
-/* Free CyaSSL X509 type */
-void FreeX509(CYASSL_X509* x509)
-{
- if (x509 == NULL)
- return;
-
- FreeX509Name(&x509->issuer);
- FreeX509Name(&x509->subject);
- if (x509->pubKey.buffer)
- XFREE(x509->pubKey.buffer, NULL, DYNAMIC_TYPE_PUBLIC_KEY);
- XFREE(x509->derCert.buffer, NULL, DYNAMIC_TYPE_SUBJECT_CN);
- XFREE(x509->sig.buffer, NULL, DYNAMIC_TYPE_SIGNATURE);
- #ifdef OPENSSL_EXTRA
- XFREE(x509->authKeyId, NULL, 0);
- XFREE(x509->subjKeyId, NULL, 0);
- #endif /* OPENSSL_EXTRA */
- if (x509->altNames)
- FreeAltNames(x509->altNames, NULL);
- if (x509->dynamicMemory)
- XFREE(x509, NULL, DYNAMIC_TYPE_X509);
-}
-
-#endif /* NO_CERTS */
-
-
-/* init everything to 0, NULL, default values before calling anything that may
- fail so that desctructor has a "good" state to cleanup */
-int InitSSL(CYASSL* ssl, CYASSL_CTX* ctx)
-{
- int ret;
- byte haveRSA = 0;
- byte havePSK = 0;
-
- ssl->ctx = ctx; /* only for passing to calls, options could change */
- ssl->version = ctx->method->version;
- ssl->suites = NULL;
-
-#ifdef HAVE_LIBZ
- ssl->didStreamInit = 0;
-#endif
-#ifndef NO_RSA
- haveRSA = 1;
-#endif
-
-#ifndef NO_CERTS
- ssl->buffers.certificate.buffer = 0;
- ssl->buffers.key.buffer = 0;
- ssl->buffers.certChain.buffer = 0;
-#endif
- ssl->buffers.inputBuffer.length = 0;
- ssl->buffers.inputBuffer.idx = 0;
- ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer;
- ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN;
- ssl->buffers.inputBuffer.dynamicFlag = 0;
- ssl->buffers.inputBuffer.offset = 0;
- ssl->buffers.outputBuffer.length = 0;
- ssl->buffers.outputBuffer.idx = 0;
- ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer;
- ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN;
- ssl->buffers.outputBuffer.dynamicFlag = 0;
- ssl->buffers.outputBuffer.offset = 0;
- ssl->buffers.domainName.buffer = 0;
-#ifndef NO_CERTS
- ssl->buffers.serverDH_P.buffer = 0;
- ssl->buffers.serverDH_G.buffer = 0;
- ssl->buffers.serverDH_Pub.buffer = 0;
- ssl->buffers.serverDH_Priv.buffer = 0;
-#endif
- ssl->buffers.clearOutputBuffer.buffer = 0;
- ssl->buffers.clearOutputBuffer.length = 0;
- ssl->buffers.prevSent = 0;
- ssl->buffers.plainSz = 0;
-#ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ssl->buffers.peerEccDsaKey.buffer = 0;
- ssl->buffers.peerEccDsaKey.length = 0;
- #endif /* HAVE_ECC */
- #ifndef NO_RSA
- ssl->buffers.peerRsaKey.buffer = 0;
- ssl->buffers.peerRsaKey.length = 0;
- #endif /* NO_RSA */
-#endif /* HAVE_PK_CALLBACKS */
-
-#ifdef KEEP_PEER_CERT
- InitX509(&ssl->peerCert, 0);
-#endif
-
-#ifdef HAVE_ECC
- ssl->eccTempKeySz = ctx->eccTempKeySz;
- ssl->pkCurveOID = ctx->pkCurveOID;
- ssl->peerEccKeyPresent = 0;
- ssl->peerEccDsaKeyPresent = 0;
- ssl->eccDsaKeyPresent = 0;
- ssl->eccTempKeyPresent = 0;
- ssl->peerEccKey = NULL;
- ssl->peerEccDsaKey = NULL;
- ssl->eccDsaKey = NULL;
- ssl->eccTempKey = NULL;
-#endif
-
- ssl->timeout = ctx->timeout;
- ssl->rfd = -1; /* set to invalid descriptor */
- ssl->wfd = -1;
- ssl->rflags = 0; /* no user flags yet */
- ssl->wflags = 0; /* no user flags yet */
- ssl->biord = 0;
- ssl->biowr = 0;
-
- ssl->IOCB_ReadCtx = &ssl->rfd; /* prevent invalid pointer access if not */
- ssl->IOCB_WriteCtx = &ssl->wfd; /* correctly set */
-#ifdef HAVE_NETX
- ssl->nxCtx.nxSocket = NULL;
- ssl->nxCtx.nxPacket = NULL;
- ssl->nxCtx.nxOffset = 0;
- ssl->nxCtx.nxWait = 0;
- ssl->IOCB_ReadCtx = &ssl->nxCtx; /* default NetX IO ctx, same for read */
- ssl->IOCB_WriteCtx = &ssl->nxCtx; /* and write */
-#endif
-#ifdef CYASSL_DTLS
- ssl->IOCB_CookieCtx = NULL; /* we don't use for default cb */
- ssl->dtls_expected_rx = MAX_MTU;
- ssl->keys.dtls_state.window = 0;
- ssl->keys.dtls_state.nextEpoch = 0;
- ssl->keys.dtls_state.nextSeq = 0;
-#endif
-
-#ifndef NO_OLD_TLS
-#ifndef NO_MD5
- InitMd5(&ssl->hashMd5);
-#endif
-#ifndef NO_SHA
- ret = InitSha(&ssl->hashSha);
- if (ret != 0) {
- return ret;
- }
-#endif
-#endif
-#ifndef NO_SHA256
- ret = InitSha256(&ssl->hashSha256);
- if (ret != 0) {
- return ret;
- }
-#endif
-#ifdef CYASSL_SHA384
- ret = InitSha384(&ssl->hashSha384);
- if (ret != 0) {
- return ret;
- }
-#endif
-#ifndef NO_RSA
- ssl->peerRsaKey = NULL;
- ssl->peerRsaKeyPresent = 0;
-#endif
- ssl->verifyCallback = ctx->verifyCallback;
- ssl->verifyCbCtx = NULL;
- ssl->options.side = ctx->method->side;
- ssl->options.downgrade = ctx->method->downgrade;
- ssl->error = 0;
- ssl->options.connReset = 0;
- ssl->options.isClosed = 0;
- ssl->options.closeNotify = 0;
- ssl->options.sentNotify = 0;
- ssl->options.usingCompression = 0;
- if (ssl->options.side == CYASSL_SERVER_END)
- ssl->options.haveDH = ctx->haveDH;
- else
- ssl->options.haveDH = 0;
- ssl->options.haveNTRU = ctx->haveNTRU;
- ssl->options.haveECDSAsig = ctx->haveECDSAsig;
- ssl->options.haveStaticECC = ctx->haveStaticECC;
- ssl->options.havePeerCert = 0;
- ssl->options.havePeerVerify = 0;
- ssl->options.usingPSK_cipher = 0;
- ssl->options.sendAlertState = 0;
-#ifndef NO_PSK
- havePSK = ctx->havePSK;
- ssl->options.havePSK = ctx->havePSK;
- ssl->options.client_psk_cb = ctx->client_psk_cb;
- ssl->options.server_psk_cb = ctx->server_psk_cb;
-#endif /* NO_PSK */
-
- ssl->options.serverState = NULL_STATE;
- ssl->options.clientState = NULL_STATE;
- ssl->options.connectState = CONNECT_BEGIN;
- ssl->options.acceptState = ACCEPT_BEGIN;
- ssl->options.handShakeState = NULL_STATE;
- ssl->options.processReply = doProcessInit;
-
-#ifdef CYASSL_DTLS
- ssl->keys.dtls_sequence_number = 0;
- ssl->keys.dtls_state.curSeq = 0;
- ssl->keys.dtls_state.nextSeq = 0;
- ssl->keys.dtls_handshake_number = 0;
- ssl->keys.dtls_expected_peer_handshake_number = 0;
- ssl->keys.dtls_epoch = 0;
- ssl->keys.dtls_state.curEpoch = 0;
- ssl->keys.dtls_state.nextEpoch = 0;
- ssl->dtls_timeout_init = DTLS_TIMEOUT_INIT;
- ssl->dtls_timeout_max = DTLS_TIMEOUT_MAX;
- ssl->dtls_timeout = ssl->dtls_timeout_init;
- ssl->dtls_pool = NULL;
- ssl->dtls_msg_list = NULL;
-#endif
- ssl->keys.encryptSz = 0;
- ssl->keys.padSz = 0;
- ssl->keys.encryptionOn = 0; /* initially off */
- ssl->keys.decryptedCur = 0; /* initially off */
- ssl->options.sessionCacheOff = ctx->sessionCacheOff;
- ssl->options.sessionCacheFlushOff = ctx->sessionCacheFlushOff;
-
- ssl->options.verifyPeer = ctx->verifyPeer;
- ssl->options.verifyNone = ctx->verifyNone;
- ssl->options.failNoCert = ctx->failNoCert;
- ssl->options.sendVerify = ctx->sendVerify;
-
- ssl->options.resuming = 0;
- ssl->options.haveSessionId = 0;
- #ifndef NO_OLD_TLS
- ssl->hmac = SSL_hmac; /* default to SSLv3 */
- #else
- ssl->hmac = TLS_hmac;
- #endif
- ssl->heap = ctx->heap; /* defaults to self */
- ssl->options.tls = 0;
- ssl->options.tls1_1 = 0;
- ssl->options.dtls = ssl->version.major == DTLS_MAJOR;
- ssl->options.partialWrite = ctx->partialWrite;
- ssl->options.quietShutdown = ctx->quietShutdown;
- ssl->options.certOnly = 0;
- ssl->options.groupMessages = ctx->groupMessages;
- ssl->options.usingNonblock = 0;
- ssl->options.saveArrays = 0;
-
-#ifndef NO_CERTS
- /* ctx still owns certificate, certChain, key, dh, and cm */
- ssl->buffers.certificate = ctx->certificate;
- ssl->buffers.certChain = ctx->certChain;
- ssl->buffers.key = ctx->privateKey;
- if (ssl->options.side == CYASSL_SERVER_END) {
- ssl->buffers.serverDH_P = ctx->serverDH_P;
- ssl->buffers.serverDH_G = ctx->serverDH_G;
- }
-#endif
- ssl->buffers.weOwnCert = 0;
- ssl->buffers.weOwnKey = 0;
- ssl->buffers.weOwnDH = 0;
-
-#ifdef CYASSL_DTLS
- ssl->buffers.dtlsCtx.fd = -1;
- ssl->buffers.dtlsCtx.peer.sa = NULL;
- ssl->buffers.dtlsCtx.peer.sz = 0;
-#endif
-
-#ifdef KEEP_PEER_CERT
- ssl->peerCert.issuer.sz = 0;
- ssl->peerCert.subject.sz = 0;
-#endif
-
-#ifdef SESSION_CERTS
- ssl->session.chain.count = 0;
-#endif
-
-#ifndef NO_CLIENT_CACHE
- ssl->session.idLen = 0;
-#endif
-
- ssl->cipher.ssl = ssl;
-
-#ifdef FORTRESS
- ssl->ex_data[0] = 0;
- ssl->ex_data[1] = 0;
- ssl->ex_data[2] = 0;
-#endif
-
-#ifdef CYASSL_CALLBACKS
- ssl->hsInfoOn = 0;
- ssl->toInfoOn = 0;
-#endif
-
-#ifdef HAVE_CAVIUM
- ssl->devId = ctx->devId;
-#endif
-
-#ifdef HAVE_TLS_EXTENSIONS
- ssl->extensions = NULL;
-#ifdef HAVE_MAX_FRAGMENT
- ssl->max_fragment = MAX_RECORD_SIZE;
-#endif
-#ifdef HAVE_TRUNCATED_HMAC
- ssl->truncated_hmac = 0;
-#endif
-#endif
-
- ssl->rng = NULL;
- ssl->arrays = NULL;
-
- /* default alert state (none) */
- ssl->alert_history.last_rx.code = -1;
- ssl->alert_history.last_rx.level = -1;
- ssl->alert_history.last_tx.code = -1;
- ssl->alert_history.last_tx.level = -1;
-
- InitCiphers(ssl);
- InitCipherSpecs(&ssl->specs);
-#ifdef ATOMIC_USER
- ssl->MacEncryptCtx = NULL;
- ssl->DecryptVerifyCtx = NULL;
-#endif
-#ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ssl->EccSignCtx = NULL;
- ssl->EccVerifyCtx = NULL;
- #endif /* HAVE_ECC */
- #ifndef NO_RSA
- ssl->RsaSignCtx = NULL;
- ssl->RsaVerifyCtx = NULL;
- ssl->RsaEncCtx = NULL;
- ssl->RsaDecCtx = NULL;
- #endif /* NO_RSA */
-#endif /* HAVE_PK_CALLBACKS */
-
- /* all done with init, now can return errors, call other stuff */
-
- /* increment CTX reference count */
- if (LockMutex(&ctx->countMutex) != 0) {
- CYASSL_MSG("Couldn't lock CTX count mutex");
- return BAD_MUTEX_E;
- }
- ctx->refCount++;
- UnLockMutex(&ctx->countMutex);
-
- /* arrays */
- ssl->arrays = (Arrays*)XMALLOC(sizeof(Arrays), ssl->heap,
- DYNAMIC_TYPE_ARRAYS);
- if (ssl->arrays == NULL) {
- CYASSL_MSG("Arrays Memory error");
- return MEMORY_E;
- }
- XMEMSET(ssl->arrays, 0, sizeof(Arrays));
-
-#ifndef NO_PSK
- ssl->arrays->client_identity[0] = 0;
- if (ctx->server_hint[0]) { /* set in CTX */
- XSTRNCPY(ssl->arrays->server_hint, ctx->server_hint, MAX_PSK_ID_LEN);
- ssl->arrays->server_hint[MAX_PSK_ID_LEN - 1] = '\0';
- }
- else
- ssl->arrays->server_hint[0] = 0;
-#endif /* NO_PSK */
-
-#ifdef CYASSL_DTLS
- ssl->arrays->cookieSz = 0;
-#endif
-
- /* RNG */
- ssl->rng = (RNG*)XMALLOC(sizeof(RNG), ssl->heap, DYNAMIC_TYPE_RNG);
- if (ssl->rng == NULL) {
- CYASSL_MSG("RNG Memory error");
- return MEMORY_E;
- }
-
- if ( (ret = InitRng(ssl->rng)) != 0) {
- CYASSL_MSG("RNG Init error");
- return ret;
- }
-
- /* suites */
- ssl->suites = (Suites*)XMALLOC(sizeof(Suites), ssl->heap,
- DYNAMIC_TYPE_SUITES);
- if (ssl->suites == NULL) {
- CYASSL_MSG("Suites Memory error");
- return MEMORY_E;
- }
- *ssl->suites = ctx->suites;
-
- /* peer key */
-#ifndef NO_RSA
- ssl->peerRsaKey = (RsaKey*)XMALLOC(sizeof(RsaKey), ssl->heap,
- DYNAMIC_TYPE_RSA);
- if (ssl->peerRsaKey == NULL) {
- CYASSL_MSG("PeerRsaKey Memory error");
- return MEMORY_E;
- }
- ret = InitRsaKey(ssl->peerRsaKey, ctx->heap);
- if (ret != 0) return ret;
-#endif
-#ifndef NO_CERTS
- /* make sure server has cert and key unless using PSK */
- if (ssl->options.side == CYASSL_SERVER_END && !havePSK)
- if (!ssl->buffers.certificate.buffer || !ssl->buffers.key.buffer) {
- CYASSL_MSG("Server missing certificate and/or private key");
- return NO_PRIVATE_KEY;
- }
-#endif
-#ifdef HAVE_ECC
- ssl->peerEccKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
- ctx->heap, DYNAMIC_TYPE_ECC);
- if (ssl->peerEccKey == NULL) {
- CYASSL_MSG("PeerEccKey Memory error");
- return MEMORY_E;
- }
- ssl->peerEccDsaKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
- ctx->heap, DYNAMIC_TYPE_ECC);
- if (ssl->peerEccDsaKey == NULL) {
- CYASSL_MSG("PeerEccDsaKey Memory error");
- return MEMORY_E;
- }
- ssl->eccDsaKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
- ctx->heap, DYNAMIC_TYPE_ECC);
- if (ssl->eccDsaKey == NULL) {
- CYASSL_MSG("EccDsaKey Memory error");
- return MEMORY_E;
- }
- ssl->eccTempKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
- ctx->heap, DYNAMIC_TYPE_ECC);
- if (ssl->eccTempKey == NULL) {
- CYASSL_MSG("EccTempKey Memory error");
- return MEMORY_E;
- }
- ecc_init(ssl->peerEccKey);
- ecc_init(ssl->peerEccDsaKey);
- ecc_init(ssl->eccDsaKey);
- ecc_init(ssl->eccTempKey);
-#endif
-
- /* make sure server has DH parms, and add PSK if there, add NTRU too */
- if (ssl->options.side == CYASSL_SERVER_END)
- InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
- ssl->options.haveDH, ssl->options.haveNTRU,
- ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
- ssl->options.side);
- else
- InitSuites(ssl->suites, ssl->version, haveRSA, havePSK, TRUE,
- ssl->options.haveNTRU, ssl->options.haveECDSAsig,
- ssl->options.haveStaticECC, ssl->options.side);
-
- return 0;
-}
-
-
-/* free use of temporary arrays */
-void FreeArrays(CYASSL* ssl, int keep)
-{
- if (ssl->arrays && keep) {
- /* keeps session id for user retrieval */
- XMEMCPY(ssl->session.sessionID, ssl->arrays->sessionID, ID_LEN);
- }
- XFREE(ssl->arrays, ssl->heap, DYNAMIC_TYPE_ARRAYS);
- ssl->arrays = NULL;
-}
-
-
-/* In case holding SSL object in array and don't want to free actual ssl */
-void SSL_ResourceFree(CYASSL* ssl)
-{
- FreeCiphers(ssl);
- FreeArrays(ssl, 0);
- XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG);
- XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES);
- XFREE(ssl->buffers.domainName.buffer, ssl->heap, DYNAMIC_TYPE_DOMAIN);
-
-#ifndef NO_CERTS
- XFREE(ssl->buffers.serverDH_Priv.buffer, ssl->heap, DYNAMIC_TYPE_DH);
- XFREE(ssl->buffers.serverDH_Pub.buffer, ssl->heap, DYNAMIC_TYPE_DH);
- /* parameters (p,g) may be owned by ctx */
- if (ssl->buffers.weOwnDH || ssl->options.side == CYASSL_CLIENT_END) {
- XFREE(ssl->buffers.serverDH_G.buffer, ssl->heap, DYNAMIC_TYPE_DH);
- XFREE(ssl->buffers.serverDH_P.buffer, ssl->heap, DYNAMIC_TYPE_DH);
- }
-
- /* CYASSL_CTX always owns certChain */
- if (ssl->buffers.weOwnCert)
- XFREE(ssl->buffers.certificate.buffer, ssl->heap, DYNAMIC_TYPE_CERT);
- if (ssl->buffers.weOwnKey)
- XFREE(ssl->buffers.key.buffer, ssl->heap, DYNAMIC_TYPE_KEY);
-#endif
-#ifndef NO_RSA
- if (ssl->peerRsaKey) {
- FreeRsaKey(ssl->peerRsaKey);
- XFREE(ssl->peerRsaKey, ssl->heap, DYNAMIC_TYPE_RSA);
- }
-#endif
- if (ssl->buffers.inputBuffer.dynamicFlag)
- ShrinkInputBuffer(ssl, FORCED_FREE);
- if (ssl->buffers.outputBuffer.dynamicFlag)
- ShrinkOutputBuffer(ssl);
-#ifdef CYASSL_DTLS
- if (ssl->dtls_pool != NULL) {
- DtlsPoolReset(ssl);
- XFREE(ssl->dtls_pool, ssl->heap, DYNAMIC_TYPE_NONE);
- }
- if (ssl->dtls_msg_list != NULL) {
- DtlsMsgListDelete(ssl->dtls_msg_list, ssl->heap);
- ssl->dtls_msg_list = NULL;
- }
- XFREE(ssl->buffers.dtlsCtx.peer.sa, ssl->heap, DYNAMIC_TYPE_SOCKADDR);
- ssl->buffers.dtlsCtx.peer.sa = NULL;
-#endif
-#if defined(KEEP_PEER_CERT) || defined(GOAHEAD_WS)
- FreeX509(&ssl->peerCert);
-#endif
-#if defined(OPENSSL_EXTRA) || defined(GOAHEAD_WS)
- CyaSSL_BIO_free(ssl->biord);
- if (ssl->biord != ssl->biowr) /* in case same as write */
- CyaSSL_BIO_free(ssl->biowr);
-#endif
-#ifdef HAVE_LIBZ
- FreeStreams(ssl);
-#endif
-#ifdef HAVE_ECC
- if (ssl->peerEccKey) {
- if (ssl->peerEccKeyPresent)
- ecc_free(ssl->peerEccKey);
- XFREE(ssl->peerEccKey, ssl->heap, DYNAMIC_TYPE_ECC);
- }
- if (ssl->peerEccDsaKey) {
- if (ssl->peerEccDsaKeyPresent)
- ecc_free(ssl->peerEccDsaKey);
- XFREE(ssl->peerEccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
- }
- if (ssl->eccTempKey) {
- if (ssl->eccTempKeyPresent)
- ecc_free(ssl->eccTempKey);
- XFREE(ssl->eccTempKey, ssl->heap, DYNAMIC_TYPE_ECC);
- }
- if (ssl->eccDsaKey) {
- if (ssl->eccDsaKeyPresent)
- ecc_free(ssl->eccDsaKey);
- XFREE(ssl->eccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
- }
-#endif
-#ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC);
- #endif /* HAVE_ECC */
- #ifndef NO_RSA
- XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA);
- #endif /* NO_RSA */
-#endif /* HAVE_PK_CALLBACKS */
-#ifdef HAVE_TLS_EXTENSIONS
- TLSX_FreeAll(ssl->extensions);
-#endif
-#ifdef HAVE_NETX
- if (ssl->nxCtx.nxPacket)
- nx_packet_release(ssl->nxCtx.nxPacket);
-#endif
-}
-
-
-/* Free any handshake resources no longer needed */
-void FreeHandshakeResources(CYASSL* ssl)
-{
- /* input buffer */
- if (ssl->buffers.inputBuffer.dynamicFlag)
- ShrinkInputBuffer(ssl, NO_FORCED_FREE);
-
- /* suites */
- XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES);
- ssl->suites = NULL;
-
- /* RNG */
- if (ssl->specs.cipher_type == stream || ssl->options.tls1_1 == 0) {
- XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG);
- ssl->rng = NULL;
- }
-
-#ifdef CYASSL_DTLS
- /* DTLS_POOL */
- if (ssl->options.dtls && ssl->dtls_pool != NULL) {
- DtlsPoolReset(ssl);
- XFREE(ssl->dtls_pool, ssl->heap, DYNAMIC_TYPE_DTLS_POOL);
- ssl->dtls_pool = NULL;
- }
-#endif
-
- /* arrays */
- if (ssl->options.saveArrays)
- FreeArrays(ssl, 1);
-
-#ifndef NO_RSA
- /* peerRsaKey */
- if (ssl->peerRsaKey) {
- FreeRsaKey(ssl->peerRsaKey);
- XFREE(ssl->peerRsaKey, ssl->heap, DYNAMIC_TYPE_RSA);
- ssl->peerRsaKey = NULL;
- }
-#endif
-
-#ifdef HAVE_ECC
- if (ssl->peerEccKey)
- {
- if (ssl->peerEccKeyPresent) {
- ecc_free(ssl->peerEccKey);
- ssl->peerEccKeyPresent = 0;
- }
- XFREE(ssl->peerEccKey, ssl->heap, DYNAMIC_TYPE_ECC);
- ssl->peerEccKey = NULL;
- }
- if (ssl->peerEccDsaKey)
- {
- if (ssl->peerEccDsaKeyPresent) {
- ecc_free(ssl->peerEccDsaKey);
- ssl->peerEccDsaKeyPresent = 0;
- }
- XFREE(ssl->peerEccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
- ssl->peerEccDsaKey = NULL;
- }
- if (ssl->eccTempKey)
- {
- if (ssl->eccTempKeyPresent) {
- ecc_free(ssl->eccTempKey);
- ssl->eccTempKeyPresent = 0;
- }
- XFREE(ssl->eccTempKey, ssl->heap, DYNAMIC_TYPE_ECC);
- ssl->eccTempKey = NULL;
- }
- if (ssl->eccDsaKey)
- {
- if (ssl->eccDsaKeyPresent) {
- ecc_free(ssl->eccDsaKey);
- ssl->eccDsaKeyPresent = 0;
- }
- XFREE(ssl->eccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
- ssl->eccDsaKey = NULL;
- }
-#endif
-#ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC);
- ssl->buffers.peerEccDsaKey.buffer = NULL;
- #endif /* HAVE_ECC */
- #ifndef NO_RSA
- XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA);
- ssl->buffers.peerRsaKey.buffer = NULL;
- #endif /* NO_RSA */
-#endif /* HAVE_PK_CALLBACKS */
-}
-
-
-void FreeSSL(CYASSL* ssl)
-{
- FreeSSL_Ctx(ssl->ctx); /* will decrement and free underyling CTX if 0 */
- SSL_ResourceFree(ssl);
- XFREE(ssl, ssl->heap, DYNAMIC_TYPE_SSL);
-}
-
-
-#ifdef CYASSL_DTLS
-
-int DtlsPoolInit(CYASSL* ssl)
-{
- if (ssl->dtls_pool == NULL) {
- DtlsPool *pool = (DtlsPool*)XMALLOC(sizeof(DtlsPool),
- ssl->heap, DYNAMIC_TYPE_DTLS_POOL);
- if (pool == NULL) {
- CYASSL_MSG("DTLS Buffer Pool Memory error");
- return MEMORY_E;
- }
- else {
- int i;
-
- for (i = 0; i < DTLS_POOL_SZ; i++) {
- pool->buf[i].length = 0;
- pool->buf[i].buffer = NULL;
- }
- pool->used = 0;
- ssl->dtls_pool = pool;
- }
- }
- return 0;
-}
-
-
-int DtlsPoolSave(CYASSL* ssl, const byte *src, int sz)
-{
- DtlsPool *pool = ssl->dtls_pool;
- if (pool != NULL && pool->used < DTLS_POOL_SZ) {
- buffer *pBuf = &pool->buf[pool->used];
- pBuf->buffer = (byte*)XMALLOC(sz, ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
- if (pBuf->buffer == NULL) {
- CYASSL_MSG("DTLS Buffer Memory error");
- return MEMORY_ERROR;
- }
- XMEMCPY(pBuf->buffer, src, sz);
- pBuf->length = (word32)sz;
- pool->used++;
- }
- return 0;
-}
-
-
-void DtlsPoolReset(CYASSL* ssl)
-{
- DtlsPool *pool = ssl->dtls_pool;
- if (pool != NULL) {
- buffer *pBuf;
- int i, used;
-
- used = pool->used;
- for (i = 0, pBuf = &pool->buf[0]; i < used; i++, pBuf++) {
- XFREE(pBuf->buffer, ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
- pBuf->buffer = NULL;
- pBuf->length = 0;
- }
- pool->used = 0;
- }
- ssl->dtls_timeout = ssl->dtls_timeout_init;
-}
-
-
-int DtlsPoolTimeout(CYASSL* ssl)
-{
- int result = -1;
- if (ssl->dtls_timeout < ssl->dtls_timeout_max) {
- ssl->dtls_timeout *= DTLS_TIMEOUT_MULTIPLIER;
- result = 0;
- }
- return result;
-}
-
-
-int DtlsPoolSend(CYASSL* ssl)
-{
- int ret;
- DtlsPool *pool = ssl->dtls_pool;
-
- if (pool != NULL && pool->used > 0) {
- int i;
- for (i = 0; i < pool->used; i++) {
- int sendResult;
- buffer* buf = &pool->buf[i];
-
- DtlsRecordLayerHeader* dtls = (DtlsRecordLayerHeader*)buf->buffer;
-
- word16 message_epoch;
- ato16(dtls->epoch, &message_epoch);
- if (message_epoch == ssl->keys.dtls_epoch) {
- /* Increment record sequence number on retransmitted handshake
- * messages */
- c32to48(ssl->keys.dtls_sequence_number, dtls->sequence_number);
- ssl->keys.dtls_sequence_number++;
- }
- else {
- /* The Finished message is sent with the next epoch, keep its
- * sequence number */
- }
-
- if ((ret = CheckAvailableSize(ssl, buf->length)) != 0)
- return ret;
-
- XMEMCPY(ssl->buffers.outputBuffer.buffer, buf->buffer, buf->length);
- ssl->buffers.outputBuffer.idx = 0;
- ssl->buffers.outputBuffer.length = buf->length;
-
- sendResult = SendBuffered(ssl);
- if (sendResult < 0) {
- return sendResult;
- }
- }
- }
- return 0;
-}
-
-
-/* functions for managing DTLS datagram reordering */
-
-/* Need to allocate space for the handshake message header. The hashing
- * routines assume the message pointer is still within the buffer that
- * has the headers, and will include those headers in the hash. The store
- * routines need to take that into account as well. New will allocate
- * extra space for the headers. */
-DtlsMsg* DtlsMsgNew(word32 sz, void* heap)
-{
- DtlsMsg* msg = NULL;
-
- msg = (DtlsMsg*)XMALLOC(sizeof(DtlsMsg), heap, DYNAMIC_TYPE_DTLS_MSG);
-
- if (msg != NULL) {
- msg->buf = (byte*)XMALLOC(sz + DTLS_HANDSHAKE_HEADER_SZ,
- heap, DYNAMIC_TYPE_NONE);
- if (msg->buf != NULL) {
- msg->next = NULL;
- msg->seq = 0;
- msg->sz = sz;
- msg->fragSz = 0;
- msg->msg = msg->buf + DTLS_HANDSHAKE_HEADER_SZ;
- }
- else {
- XFREE(msg, heap, DYNAMIC_TYPE_DTLS_MSG);
- msg = NULL;
- }
- }
-
- return msg;
-}
-
-void DtlsMsgDelete(DtlsMsg* item, void* heap)
-{
- (void)heap;
-
- if (item != NULL) {
- if (item->buf != NULL)
- XFREE(item->buf, heap, DYNAMIC_TYPE_NONE);
- XFREE(item, heap, DYNAMIC_TYPE_DTLS_MSG);
- }
-}
-
-
-void DtlsMsgListDelete(DtlsMsg* head, void* heap)
-{
- DtlsMsg* next;
- while (head) {
- next = head->next;
- DtlsMsgDelete(head, heap);
- head = next;
- }
-}
-
-
-void DtlsMsgSet(DtlsMsg* msg, word32 seq, const byte* data, byte type,
- word32 fragOffset, word32 fragSz)
-{
- if (msg != NULL && data != NULL && msg->fragSz <= msg->sz) {
- msg->seq = seq;
- msg->type = type;
- msg->fragSz += fragSz;
- /* If fragOffset is zero, this is either a full message that is out
- * of order, or the first fragment of a fragmented message. Copy the
- * handshake message header as well as the message data. */
- if (fragOffset == 0)
- XMEMCPY(msg->buf, data - DTLS_HANDSHAKE_HEADER_SZ,
- fragSz + DTLS_HANDSHAKE_HEADER_SZ);
- else {
- /* If fragOffet is non-zero, this is an additional fragment that
- * needs to be copied to its location in the message buffer. Also
- * copy the total size of the message over the fragment size. The
- * hash routines look at a defragmented message if it had actually
- * come across as a single handshake message. */
- XMEMCPY(msg->msg + fragOffset, data, fragSz);
- c32to24(msg->sz, msg->msg - DTLS_HANDSHAKE_FRAG_SZ);
- }
- }
-}
-
-
-DtlsMsg* DtlsMsgFind(DtlsMsg* head, word32 seq)
-{
- while (head != NULL && head->seq != seq) {
- head = head->next;
- }
- return head;
-}
-
-
-DtlsMsg* DtlsMsgStore(DtlsMsg* head, word32 seq, const byte* data,
- word32 dataSz, byte type, word32 fragOffset, word32 fragSz, void* heap)
-{
-
- /* See if seq exists in the list. If it isn't in the list, make
- * a new item of size dataSz, copy fragSz bytes from data to msg->msg
- * starting at offset fragOffset, and add fragSz to msg->fragSz. If
- * the seq is in the list and it isn't full, copy fragSz bytes from
- * data to msg->msg starting at offset fragOffset, and add fragSz to
- * msg->fragSz. The new item should be inserted into the list in its
- * proper position.
- *
- * 1. Find seq in list, or where seq should go in list. If seq not in
- * list, create new item and insert into list. Either case, keep
- * pointer to item.
- * 2. If msg->fragSz + fragSz < sz, copy data to msg->msg at offset
- * fragOffset. Add fragSz to msg->fragSz.
- */
-
- if (head != NULL) {
- DtlsMsg* cur = DtlsMsgFind(head, seq);
- if (cur == NULL) {
- cur = DtlsMsgNew(dataSz, heap);
- if (cur != NULL) {
- DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
- head = DtlsMsgInsert(head, cur);
- }
- }
- else {
- DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
- }
- }
- else {
- head = DtlsMsgNew(dataSz, heap);
- DtlsMsgSet(head, seq, data, type, fragOffset, fragSz);
- }
-
- return head;
-}
-
-
-/* DtlsMsgInsert() is an in-order insert. */
-DtlsMsg* DtlsMsgInsert(DtlsMsg* head, DtlsMsg* item)
-{
- if (head == NULL || item->seq < head->seq) {
- item->next = head;
- head = item;
- }
- else if (head->next == NULL) {
- head->next = item;
- }
- else {
- DtlsMsg* cur = head->next;
- DtlsMsg* prev = head;
- while (cur) {
- if (item->seq < cur->seq) {
- item->next = cur;
- prev->next = item;
- break;
- }
- prev = cur;
- cur = cur->next;
- }
- if (cur == NULL) {
- prev->next = item;
- }
- }
-
- return head;
-}
-
-#endif /* CYASSL_DTLS */
-
-#ifndef NO_OLD_TLS
-
-ProtocolVersion MakeSSLv3(void)
-{
- ProtocolVersion pv;
- pv.major = SSLv3_MAJOR;
- pv.minor = SSLv3_MINOR;
-
- return pv;
-}
-
-#endif /* NO_OLD_TLS */
-
-
-#ifdef CYASSL_DTLS
-
-ProtocolVersion MakeDTLSv1(void)
-{
- ProtocolVersion pv;
- pv.major = DTLS_MAJOR;
- pv.minor = DTLS_MINOR;
-
- return pv;
-}
-
-ProtocolVersion MakeDTLSv1_2(void)
-{
- ProtocolVersion pv;
- pv.major = DTLS_MAJOR;
- pv.minor = DTLSv1_2_MINOR;
-
- return pv;
-}
-
-#endif /* CYASSL_DTLS */
-
-
-
-
-#ifdef USE_WINDOWS_API
-
- word32 LowResTimer(void)
- {
- static int init = 0;
- static LARGE_INTEGER freq;
- LARGE_INTEGER count;
-
- if (!init) {
- QueryPerformanceFrequency(&freq);
- init = 1;
- }
-
- QueryPerformanceCounter(&count);
-
- return (word32)(count.QuadPart / freq.QuadPart);
- }
-
-#elif defined(HAVE_RTP_SYS)
-
- #include "rtptime.h"
-
- word32 LowResTimer(void)
- {
- return (word32)rtp_get_system_sec();
- }
-
-
-#elif defined(MICRIUM)
-
- word32 LowResTimer(void)
- {
- NET_SECURE_OS_TICK clk;
-
- #if (NET_SECURE_MGR_CFG_EN == DEF_ENABLED)
- clk = NetSecure_OS_TimeGet();
- #endif
- return (word32)clk;
- }
-
-
-#elif defined(MICROCHIP_TCPIP_V5)
-
- word32 LowResTimer(void)
- {
- return (word32) TickGet();
- }
-
-
-#elif defined(MICROCHIP_TCPIP)
-
- #if defined(MICROCHIP_MPLAB_HARMONY)
-
- #include <system/tmr/sys_tmr.h>
-
- word32 LowResTimer(void)
- {
- return (word32) SYS_TMR_TickCountGet();
- }
-
- #else
-
- word32 LowResTimer(void)
- {
- return (word32) SYS_TICK_Get();
- }
-
- #endif
-
-#elif defined(FREESCALE_MQX)
-
- word32 LowResTimer(void)
- {
- TIME_STRUCT mqxTime;
-
- _time_get_elapsed(&mqxTime);
-
- return (word32) mqxTime.SECONDS;
- }
-
-
-#elif defined(USER_TICKS)
-#if 0
- word32 LowResTimer(void)
- {
- /*
- write your own clock tick function if don't want time(0)
- needs second accuracy but doesn't have to correlated to EPOCH
- */
- }
-#endif
-#else /* !USE_WINDOWS_API && !HAVE_RTP_SYS && !MICRIUM && !USER_TICKS */
-
- #include <time.h>
-
- word32 LowResTimer(void)
- {
- return (word32)time(0);
- }
-
-
-#endif /* USE_WINDOWS_API */
-
-
-/* add output to md5 and sha handshake hashes, exclude record header */
-static int HashOutput(CYASSL* ssl, const byte* output, int sz, int ivSz)
-{
- const byte* adj = output + RECORD_HEADER_SZ + ivSz;
- sz -= RECORD_HEADER_SZ;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- adj += DTLS_RECORD_EXTRA;
- sz -= DTLS_RECORD_EXTRA;
- }
-#endif
-#ifndef NO_OLD_TLS
-#ifndef NO_SHA
- ShaUpdate(&ssl->hashSha, adj, sz);
-#endif
-#ifndef NO_MD5
- Md5Update(&ssl->hashMd5, adj, sz);
-#endif
-#endif
-
- if (IsAtLeastTLSv1_2(ssl)) {
- int ret;
-
-#ifndef NO_SHA256
- ret = Sha256Update(&ssl->hashSha256, adj, sz);
- if (ret != 0)
- return ret;
-#endif
-#ifdef CYASSL_SHA384
- ret = Sha384Update(&ssl->hashSha384, adj, sz);
- if (ret != 0)
- return ret;
-#endif
- }
-
- return 0;
-}
-
-
-/* add input to md5 and sha handshake hashes, include handshake header */
-static int HashInput(CYASSL* ssl, const byte* input, int sz)
-{
- const byte* adj = input - HANDSHAKE_HEADER_SZ;
- sz += HANDSHAKE_HEADER_SZ;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- adj -= DTLS_HANDSHAKE_EXTRA;
- sz += DTLS_HANDSHAKE_EXTRA;
- }
-#endif
-
-#ifndef NO_OLD_TLS
-#ifndef NO_SHA
- ShaUpdate(&ssl->hashSha, adj, sz);
-#endif
-#ifndef NO_MD5
- Md5Update(&ssl->hashMd5, adj, sz);
-#endif
-#endif
-
- if (IsAtLeastTLSv1_2(ssl)) {
- int ret;
-
-#ifndef NO_SHA256
- ret = Sha256Update(&ssl->hashSha256, adj, sz);
- if (ret != 0)
- return ret;
-#endif
-#ifdef CYASSL_SHA384
- ret = Sha384Update(&ssl->hashSha384, adj, sz);
- if (ret != 0)
- return ret;
-#endif
- }
-
- return 0;
-}
-
-
-/* add record layer header for message */
-static void AddRecordHeader(byte* output, word32 length, byte type, CYASSL* ssl)
-{
- RecordLayerHeader* rl;
-
- /* record layer header */
- rl = (RecordLayerHeader*)output;
- rl->type = type;
- rl->pvMajor = ssl->version.major; /* type and version same in each */
- rl->pvMinor = ssl->version.minor;
-
- if (!ssl->options.dtls)
- c16toa((word16)length, rl->length);
- else {
-#ifdef CYASSL_DTLS
- DtlsRecordLayerHeader* dtls;
-
- /* dtls record layer header extensions */
- dtls = (DtlsRecordLayerHeader*)output;
- c16toa(ssl->keys.dtls_epoch, dtls->epoch);
- c32to48(ssl->keys.dtls_sequence_number++, dtls->sequence_number);
- c16toa((word16)length, dtls->length);
-#endif
- }
-}
-
-
-/* add handshake header for message */
-static void AddHandShakeHeader(byte* output, word32 length, byte type,
- CYASSL* ssl)
-{
- HandShakeHeader* hs;
- (void)ssl;
-
- /* handshake header */
- hs = (HandShakeHeader*)output;
- hs->type = type;
- c32to24(length, hs->length); /* type and length same for each */
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- DtlsHandShakeHeader* dtls;
-
- /* dtls handshake header extensions */
- dtls = (DtlsHandShakeHeader*)output;
- c16toa(ssl->keys.dtls_handshake_number++, dtls->message_seq);
- c32to24(0, dtls->fragment_offset);
- c32to24(length, dtls->fragment_length);
- }
-#endif
-}
-
-
-/* add both headers for handshake message */
-static void AddHeaders(byte* output, word32 length, byte type, CYASSL* ssl)
-{
- if (!ssl->options.dtls) {
- AddRecordHeader(output, length + HANDSHAKE_HEADER_SZ, handshake, ssl);
- AddHandShakeHeader(output + RECORD_HEADER_SZ, length, type, ssl);
- }
-#ifdef CYASSL_DTLS
- else {
- AddRecordHeader(output, length+DTLS_HANDSHAKE_HEADER_SZ, handshake,ssl);
- AddHandShakeHeader(output + DTLS_RECORD_HEADER_SZ, length, type, ssl);
- }
-#endif
-}
-
-
-/* return bytes received, -1 on error */
-static int Receive(CYASSL* ssl, byte* buf, word32 sz)
-{
- int recvd;
-
- if (ssl->ctx->CBIORecv == NULL) {
- CYASSL_MSG("Your IO Recv callback is null, please set");
- return -1;
- }
-
-retry:
- recvd = ssl->ctx->CBIORecv(ssl, (char *)buf, (int)sz, ssl->IOCB_ReadCtx);
- if (recvd < 0)
- switch (recvd) {
- case CYASSL_CBIO_ERR_GENERAL: /* general/unknown error */
- return -1;
-
- case CYASSL_CBIO_ERR_WANT_READ: /* want read, would block */
- return WANT_READ;
-
- case CYASSL_CBIO_ERR_CONN_RST: /* connection reset */
- #ifdef USE_WINDOWS_API
- if (ssl->options.dtls) {
- goto retry;
- }
- #endif
- ssl->options.connReset = 1;
- return -1;
-
- case CYASSL_CBIO_ERR_ISR: /* interrupt */
- /* see if we got our timeout */
- #ifdef CYASSL_CALLBACKS
- if (ssl->toInfoOn) {
- struct itimerval timeout;
- getitimer(ITIMER_REAL, &timeout);
- if (timeout.it_value.tv_sec == 0 &&
- timeout.it_value.tv_usec == 0) {
- XSTRNCPY(ssl->timeoutInfo.timeoutName,
- "recv() timeout", MAX_TIMEOUT_NAME_SZ);
- CYASSL_MSG("Got our timeout");
- return WANT_READ;
- }
- }
- #endif
- goto retry;
-
- case CYASSL_CBIO_ERR_CONN_CLOSE: /* peer closed connection */
- ssl->options.isClosed = 1;
- return -1;
-
- case CYASSL_CBIO_ERR_TIMEOUT:
-#ifdef CYASSL_DTLS
- if (DtlsPoolTimeout(ssl) == 0 && DtlsPoolSend(ssl) == 0)
- goto retry;
- else
-#endif
- return -1;
-
- default:
- return recvd;
- }
-
- return recvd;
-}
-
-
-/* Switch dynamic output buffer back to static, buffer is assumed clear */
-void ShrinkOutputBuffer(CYASSL* ssl)
-{
- CYASSL_MSG("Shrinking output buffer\n");
- XFREE(ssl->buffers.outputBuffer.buffer - ssl->buffers.outputBuffer.offset,
- ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
- ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer;
- ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN;
- ssl->buffers.outputBuffer.dynamicFlag = 0;
- ssl->buffers.outputBuffer.offset = 0;
-}
-
-
-/* Switch dynamic input buffer back to static, keep any remaining input */
-/* forced free means cleaning up */
-void ShrinkInputBuffer(CYASSL* ssl, int forcedFree)
-{
- int usedLength = ssl->buffers.inputBuffer.length -
- ssl->buffers.inputBuffer.idx;
- if (!forcedFree && usedLength > STATIC_BUFFER_LEN)
- return;
-
- CYASSL_MSG("Shrinking input buffer\n");
-
- if (!forcedFree && usedLength)
- XMEMCPY(ssl->buffers.inputBuffer.staticBuffer,
- ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx,
- usedLength);
-
- XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset,
- ssl->heap, DYNAMIC_TYPE_IN_BUFFER);
- ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer;
- ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN;
- ssl->buffers.inputBuffer.dynamicFlag = 0;
- ssl->buffers.inputBuffer.offset = 0;
- ssl->buffers.inputBuffer.idx = 0;
- ssl->buffers.inputBuffer.length = usedLength;
-}
-
-
-int SendBuffered(CYASSL* ssl)
-{
- if (ssl->ctx->CBIOSend == NULL) {
- CYASSL_MSG("Your IO Send callback is null, please set");
- return SOCKET_ERROR_E;
- }
-
- while (ssl->buffers.outputBuffer.length > 0) {
- int sent = ssl->ctx->CBIOSend(ssl,
- (char*)ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.idx,
- (int)ssl->buffers.outputBuffer.length,
- ssl->IOCB_WriteCtx);
- if (sent < 0) {
- switch (sent) {
-
- case CYASSL_CBIO_ERR_WANT_WRITE: /* would block */
- return WANT_WRITE;
-
- case CYASSL_CBIO_ERR_CONN_RST: /* connection reset */
- ssl->options.connReset = 1;
- break;
-
- case CYASSL_CBIO_ERR_ISR: /* interrupt */
- /* see if we got our timeout */
- #ifdef CYASSL_CALLBACKS
- if (ssl->toInfoOn) {
- struct itimerval timeout;
- getitimer(ITIMER_REAL, &timeout);
- if (timeout.it_value.tv_sec == 0 &&
- timeout.it_value.tv_usec == 0) {
- XSTRNCPY(ssl->timeoutInfo.timeoutName,
- "send() timeout", MAX_TIMEOUT_NAME_SZ);
- CYASSL_MSG("Got our timeout");
- return WANT_WRITE;
- }
- }
- #endif
- continue;
-
- case CYASSL_CBIO_ERR_CONN_CLOSE: /* epipe / conn closed */
- ssl->options.connReset = 1; /* treat same as reset */
- break;
-
- default:
- return SOCKET_ERROR_E;
- }
-
- return SOCKET_ERROR_E;
- }
-
- ssl->buffers.outputBuffer.idx += sent;
- ssl->buffers.outputBuffer.length -= sent;
- }
-
- ssl->buffers.outputBuffer.idx = 0;
-
- if (ssl->buffers.outputBuffer.dynamicFlag)
- ShrinkOutputBuffer(ssl);
-
- return 0;
-}
-
-
-/* Grow the output buffer */
-static INLINE int GrowOutputBuffer(CYASSL* ssl, int size)
-{
- byte* tmp;
- byte hdrSz = ssl->options.dtls ? DTLS_RECORD_HEADER_SZ :
- RECORD_HEADER_SZ;
- byte align = CYASSL_GENERAL_ALIGNMENT;
- /* the encrypted data will be offset from the front of the buffer by
- the header, if the user wants encrypted alignment they need
- to define their alignment requirement */
-
- if (align) {
- while (align < hdrSz)
- align *= 2;
- }
-
- tmp = (byte*) XMALLOC(size + ssl->buffers.outputBuffer.length + align,
- ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
- CYASSL_MSG("growing output buffer\n");
-
- if (!tmp) return MEMORY_E;
- if (align)
- tmp += align - hdrSz;
-
- if (ssl->buffers.outputBuffer.length)
- XMEMCPY(tmp, ssl->buffers.outputBuffer.buffer,
- ssl->buffers.outputBuffer.length);
-
- if (ssl->buffers.outputBuffer.dynamicFlag)
- XFREE(ssl->buffers.outputBuffer.buffer -
- ssl->buffers.outputBuffer.offset, ssl->heap,
- DYNAMIC_TYPE_OUT_BUFFER);
- ssl->buffers.outputBuffer.dynamicFlag = 1;
- if (align)
- ssl->buffers.outputBuffer.offset = align - hdrSz;
- else
- ssl->buffers.outputBuffer.offset = 0;
- ssl->buffers.outputBuffer.buffer = tmp;
- ssl->buffers.outputBuffer.bufferSize = size +
- ssl->buffers.outputBuffer.length;
- return 0;
-}
-
-
-/* Grow the input buffer, should only be to read cert or big app data */
-int GrowInputBuffer(CYASSL* ssl, int size, int usedLength)
-{
- byte* tmp;
- byte hdrSz = DTLS_RECORD_HEADER_SZ;
- byte align = ssl->options.dtls ? CYASSL_GENERAL_ALIGNMENT : 0;
- /* the encrypted data will be offset from the front of the buffer by
- the dtls record header, if the user wants encrypted alignment they need
- to define their alignment requirement. in tls we read record header
- to get size of record and put actual data back at front, so don't need */
-
- if (align) {
- while (align < hdrSz)
- align *= 2;
- }
- tmp = (byte*) XMALLOC(size + usedLength + align, ssl->heap,
- DYNAMIC_TYPE_IN_BUFFER);
- CYASSL_MSG("growing input buffer\n");
-
- if (!tmp) return MEMORY_E;
- if (align)
- tmp += align - hdrSz;
-
- if (usedLength)
- XMEMCPY(tmp, ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx, usedLength);
-
- if (ssl->buffers.inputBuffer.dynamicFlag)
- XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset,
- ssl->heap,DYNAMIC_TYPE_IN_BUFFER);
-
- ssl->buffers.inputBuffer.dynamicFlag = 1;
- if (align)
- ssl->buffers.inputBuffer.offset = align - hdrSz;
- else
- ssl->buffers.inputBuffer.offset = 0;
- ssl->buffers.inputBuffer.buffer = tmp;
- ssl->buffers.inputBuffer.bufferSize = size + usedLength;
- ssl->buffers.inputBuffer.idx = 0;
- ssl->buffers.inputBuffer.length = usedLength;
-
- return 0;
-}
-
-
-/* check available size into output buffer, make room if needed */
-int CheckAvailableSize(CYASSL *ssl, int size)
-{
- if (ssl->buffers.outputBuffer.bufferSize - ssl->buffers.outputBuffer.length
- < (word32)size) {
- if (GrowOutputBuffer(ssl, size) < 0)
- return MEMORY_E;
- }
-
- return 0;
-}
-
-
-/* do all verify and sanity checks on record header */
-static int GetRecordHeader(CYASSL* ssl, const byte* input, word32* inOutIdx,
- RecordLayerHeader* rh, word16 *size)
-{
- if (!ssl->options.dtls) {
- XMEMCPY(rh, input + *inOutIdx, RECORD_HEADER_SZ);
- *inOutIdx += RECORD_HEADER_SZ;
- ato16(rh->length, size);
- }
- else {
-#ifdef CYASSL_DTLS
- /* type and version in same sport */
- XMEMCPY(rh, input + *inOutIdx, ENUM_LEN + VERSION_SZ);
- *inOutIdx += ENUM_LEN + VERSION_SZ;
- ato16(input + *inOutIdx, &ssl->keys.dtls_state.curEpoch);
- *inOutIdx += 4; /* advance past epoch, skip first 2 seq bytes for now */
- ato32(input + *inOutIdx, &ssl->keys.dtls_state.curSeq);
- *inOutIdx += 4; /* advance past rest of seq */
- ato16(input + *inOutIdx, size);
- *inOutIdx += LENGTH_SZ;
-#endif
- }
-
- /* catch version mismatch */
- if (rh->pvMajor != ssl->version.major || rh->pvMinor != ssl->version.minor){
- if (ssl->options.side == CYASSL_SERVER_END &&
- ssl->options.acceptState == ACCEPT_BEGIN)
- CYASSL_MSG("Client attempting to connect with different version");
- else if (ssl->options.side == CYASSL_CLIENT_END &&
- ssl->options.downgrade &&
- ssl->options.connectState < FIRST_REPLY_DONE)
- CYASSL_MSG("Server attempting to accept with different version");
- else {
- CYASSL_MSG("SSL version error");
- return VERSION_ERROR; /* only use requested version */
- }
- }
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if (DtlsCheckWindow(&ssl->keys.dtls_state) != 1)
- return SEQUENCE_ERROR;
- }
-#endif
-
- /* record layer length check */
-#ifdef HAVE_MAX_FRAGMENT
- if (*size > (ssl->max_fragment + MAX_COMP_EXTRA + MAX_MSG_EXTRA))
- return LENGTH_ERROR;
-#else
- if (*size > (MAX_RECORD_SIZE + MAX_COMP_EXTRA + MAX_MSG_EXTRA))
- return LENGTH_ERROR;
-#endif
-
- /* verify record type here as well */
- switch (rh->type) {
- case handshake:
- case change_cipher_spec:
- case application_data:
- case alert:
- break;
- case no_type:
- default:
- CYASSL_MSG("Unknown Record Type");
- return UNKNOWN_RECORD_TYPE;
- }
-
- /* haven't decrypted this record yet */
- ssl->keys.decryptedCur = 0;
-
- return 0;
-}
-
-
-static int GetHandShakeHeader(CYASSL* ssl, const byte* input, word32* inOutIdx,
- byte *type, word32 *size)
-{
- const byte *ptr = input + *inOutIdx;
- (void)ssl;
- *inOutIdx += HANDSHAKE_HEADER_SZ;
-
- *type = ptr[0];
- c24to32(&ptr[1], size);
-
- return 0;
-}
-
-
-#ifdef CYASSL_DTLS
-static int GetDtlsHandShakeHeader(CYASSL* ssl, const byte* input,
- word32* inOutIdx, byte *type, word32 *size,
- word32 *fragOffset, word32 *fragSz)
-{
- word32 idx = *inOutIdx;
-
- *inOutIdx += HANDSHAKE_HEADER_SZ + DTLS_HANDSHAKE_EXTRA;
-
- *type = input[idx++];
- c24to32(input + idx, size);
- idx += BYTE3_LEN;
-
- ato16(input + idx, &ssl->keys.dtls_peer_handshake_number);
- idx += DTLS_HANDSHAKE_SEQ_SZ;
-
- c24to32(input + idx, fragOffset);
- idx += DTLS_HANDSHAKE_FRAG_SZ;
- c24to32(input + idx, fragSz);
-
- return 0;
-}
-#endif
-
-
-#ifndef NO_OLD_TLS
-/* fill with MD5 pad size since biggest required */
-static const byte PAD1[PAD_MD5] =
- { 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
- 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
- 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
- 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
- 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
- 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36
- };
-static const byte PAD2[PAD_MD5] =
- { 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
- 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
- 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
- 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
- 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
- 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c
- };
-
-/* calculate MD5 hash for finished */
-static void BuildMD5(CYASSL* ssl, Hashes* hashes, const byte* sender)
-{
- byte md5_result[MD5_DIGEST_SIZE];
-
- /* make md5 inner */
- Md5Update(&ssl->hashMd5, sender, SIZEOF_SENDER);
- Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
- Md5Update(&ssl->hashMd5, PAD1, PAD_MD5);
- Md5Final(&ssl->hashMd5, md5_result);
-
- /* make md5 outer */
- Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
- Md5Update(&ssl->hashMd5, PAD2, PAD_MD5);
- Md5Update(&ssl->hashMd5, md5_result, MD5_DIGEST_SIZE);
-
- Md5Final(&ssl->hashMd5, hashes->md5);
-}
-
-
-/* calculate SHA hash for finished */
-static void BuildSHA(CYASSL* ssl, Hashes* hashes, const byte* sender)
-{
- byte sha_result[SHA_DIGEST_SIZE];
-
- /* make sha inner */
- ShaUpdate(&ssl->hashSha, sender, SIZEOF_SENDER);
- ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
- ShaUpdate(&ssl->hashSha, PAD1, PAD_SHA);
- ShaFinal(&ssl->hashSha, sha_result);
-
- /* make sha outer */
- ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
- ShaUpdate(&ssl->hashSha, PAD2, PAD_SHA);
- ShaUpdate(&ssl->hashSha, sha_result, SHA_DIGEST_SIZE);
-
- ShaFinal(&ssl->hashSha, hashes->sha);
-}
-#endif
-
-
-static int BuildFinished(CYASSL* ssl, Hashes* hashes, const byte* sender)
-{
- /* store current states, building requires get_digest which resets state */
-#ifndef NO_OLD_TLS
-#ifndef NO_MD5
- Md5 md5 = ssl->hashMd5;
-#endif
-#ifndef NO_SHA
- Sha sha = ssl->hashSha;
-#endif
-#endif
-#ifndef NO_SHA256
- Sha256 sha256 = ssl->hashSha256;
-#endif
-#ifdef CYASSL_SHA384
- Sha384 sha384 = ssl->hashSha384;
-#endif
-
- int ret = 0;
-
-#ifndef NO_TLS
- if (ssl->options.tls) {
- ret = BuildTlsFinished(ssl, hashes, sender);
- }
-#endif
-#ifndef NO_OLD_TLS
- if (!ssl->options.tls) {
- BuildMD5(ssl, hashes, sender);
- BuildSHA(ssl, hashes, sender);
- }
-#endif
-
- /* restore */
-#ifndef NO_OLD_TLS
- #ifndef NO_MD5
- ssl->hashMd5 = md5;
- #endif
- #ifndef NO_SHA
- ssl->hashSha = sha;
- #endif
-#endif
- if (IsAtLeastTLSv1_2(ssl)) {
- #ifndef NO_SHA256
- ssl->hashSha256 = sha256;
- #endif
- #ifdef CYASSL_SHA384
- ssl->hashSha384 = sha384;
- #endif
- }
-
- return ret;
-}
-
-
-#ifndef NO_CERTS
-
-
-/* Match names with wildcards, each wildcard can represent a single name
- component or fragment but not mulitple names, i.e.,
- *.z.com matches y.z.com but not x.y.z.com
-
- return 1 on success */
-static int MatchDomainName(const char* pattern, int len, const char* str)
-{
- char p, s;
-
- if (pattern == NULL || str == NULL || len <= 0)
- return 0;
-
- while (len > 0) {
-
- p = (char)XTOLOWER(*pattern++);
- if (p == 0)
- break;
-
- if (p == '*') {
- while (--len > 0 && (p = (char)XTOLOWER(*pattern++)) == '*')
- ;
-
- if (len == 0)
- p = '\0';
-
- while ( (s = (char)XTOLOWER(*str)) != '\0') {
- if (s == p)
- break;
- if (s == '.')
- return 0;
- str++;
- }
- }
- else {
- if (p != (char)XTOLOWER(*str))
- return 0;
- }
-
- if (*str != '\0')
- str++;
-
- if (len > 0)
- len--;
- }
-
- return *str == '\0';
-}
-
-
-/* try to find an altName match to domain, return 1 on success */
-static int CheckAltNames(DecodedCert* dCert, char* domain)
-{
- int match = 0;
- DNS_entry* altName = NULL;
-
- CYASSL_MSG("Checking AltNames");
-
- if (dCert)
- altName = dCert->altNames;
-
- while (altName) {
- CYASSL_MSG(" individual AltName check");
-
- if (MatchDomainName(altName->name,(int)XSTRLEN(altName->name), domain)){
- match = 1;
- break;
- }
-
- altName = altName->next;
- }
-
- return match;
-}
-
-
-#if defined(KEEP_PEER_CERT) || defined(SESSION_CERTS)
-
-/* Copy parts X509 needs from Decoded cert, 0 on success */
-int CopyDecodedToX509(CYASSL_X509* x509, DecodedCert* dCert)
-{
- int ret = 0;
-
- if (x509 == NULL || dCert == NULL)
- return BAD_FUNC_ARG;
-
- x509->version = dCert->version + 1;
-
- XSTRNCPY(x509->issuer.name, dCert->issuer, ASN_NAME_MAX);
- x509->issuer.name[ASN_NAME_MAX - 1] = '\0';
- x509->issuer.sz = (int)XSTRLEN(x509->issuer.name) + 1;
-#ifdef OPENSSL_EXTRA
- if (dCert->issuerName.fullName != NULL) {
- XMEMCPY(&x509->issuer.fullName,
- &dCert->issuerName, sizeof(DecodedName));
- x509->issuer.fullName.fullName = (char*)XMALLOC(
- dCert->issuerName.fullNameLen, NULL, DYNAMIC_TYPE_X509);
- if (x509->issuer.fullName.fullName != NULL)
- XMEMCPY(x509->issuer.fullName.fullName,
- dCert->issuerName.fullName, dCert->issuerName.fullNameLen);
- }
-#endif /* OPENSSL_EXTRA */
-
- XSTRNCPY(x509->subject.name, dCert->subject, ASN_NAME_MAX);
- x509->subject.name[ASN_NAME_MAX - 1] = '\0';
- x509->subject.sz = (int)XSTRLEN(x509->subject.name) + 1;
-#ifdef OPENSSL_EXTRA
- if (dCert->subjectName.fullName != NULL) {
- XMEMCPY(&x509->subject.fullName,
- &dCert->subjectName, sizeof(DecodedName));
- x509->subject.fullName.fullName = (char*)XMALLOC(
- dCert->subjectName.fullNameLen, NULL, DYNAMIC_TYPE_X509);
- if (x509->subject.fullName.fullName != NULL)
- XMEMCPY(x509->subject.fullName.fullName,
- dCert->subjectName.fullName, dCert->subjectName.fullNameLen);
- }
-#endif /* OPENSSL_EXTRA */
-
- XMEMCPY(x509->serial, dCert->serial, EXTERNAL_SERIAL_SIZE);
- x509->serialSz = dCert->serialSz;
- if (dCert->subjectCNLen < ASN_NAME_MAX) {
- XMEMCPY(x509->subjectCN, dCert->subjectCN, dCert->subjectCNLen);
- x509->subjectCN[dCert->subjectCNLen] = '\0';
- }
- else
- x509->subjectCN[0] = '\0';
-
-#ifdef CYASSL_SEP
- {
- int minSz = min(dCert->deviceTypeSz, EXTERNAL_SERIAL_SIZE);
- if (minSz > 0) {
- x509->deviceTypeSz = minSz;
- XMEMCPY(x509->deviceType, dCert->deviceType, minSz);
- }
- else
- x509->deviceTypeSz = 0;
- minSz = min(dCert->hwTypeSz, EXTERNAL_SERIAL_SIZE);
- if (minSz != 0) {
- x509->hwTypeSz = minSz;
- XMEMCPY(x509->hwType, dCert->hwType, minSz);
- }
- else
- x509->hwTypeSz = 0;
- minSz = min(dCert->hwSerialNumSz, EXTERNAL_SERIAL_SIZE);
- if (minSz != 0) {
- x509->hwSerialNumSz = minSz;
- XMEMCPY(x509->hwSerialNum, dCert->hwSerialNum, minSz);
- }
- else
- x509->hwSerialNumSz = 0;
- }
-#endif /* CYASSL_SEP */
- {
- int minSz = min(dCert->beforeDateLen, MAX_DATE_SZ);
- if (minSz != 0) {
- x509->notBeforeSz = minSz;
- XMEMCPY(x509->notBefore, dCert->beforeDate, minSz);
- }
- else
- x509->notBeforeSz = 0;
- minSz = min(dCert->afterDateLen, MAX_DATE_SZ);
- if (minSz != 0) {
- x509->notAfterSz = minSz;
- XMEMCPY(x509->notAfter, dCert->afterDate, minSz);
- }
- else
- x509->notAfterSz = 0;
- }
-
- if (dCert->publicKey != NULL && dCert->pubKeySize != 0) {
- x509->pubKey.buffer = (byte*)XMALLOC(
- dCert->pubKeySize, NULL, DYNAMIC_TYPE_PUBLIC_KEY);
- if (x509->pubKey.buffer != NULL) {
- x509->pubKeyOID = dCert->keyOID;
- x509->pubKey.length = dCert->pubKeySize;
- XMEMCPY(x509->pubKey.buffer, dCert->publicKey, dCert->pubKeySize);
- }
- else
- ret = MEMORY_E;
- }
-
- if (dCert->signature != NULL && dCert->sigLength != 0) {
- x509->sig.buffer = (byte*)XMALLOC(
- dCert->sigLength, NULL, DYNAMIC_TYPE_SIGNATURE);
- if (x509->sig.buffer == NULL) {
- ret = MEMORY_E;
- }
- else {
- XMEMCPY(x509->sig.buffer, dCert->signature, dCert->sigLength);
- x509->sig.length = dCert->sigLength;
- x509->sigOID = dCert->signatureOID;
- }
- }
-
- /* store cert for potential retrieval */
- x509->derCert.buffer = (byte*)XMALLOC(dCert->maxIdx, NULL,
- DYNAMIC_TYPE_CERT);
- if (x509->derCert.buffer == NULL) {
- ret = MEMORY_E;
- }
- else {
- XMEMCPY(x509->derCert.buffer, dCert->source, dCert->maxIdx);
- x509->derCert.length = dCert->maxIdx;
- }
-
- x509->altNames = dCert->altNames;
- dCert->altNames = NULL; /* takes ownership */
- x509->altNamesNext = x509->altNames; /* index hint */
-
- x509->isCa = dCert->isCA;
-#ifdef OPENSSL_EXTRA
- x509->pathLength = dCert->pathLength;
- x509->keyUsage = dCert->extKeyUsage;
-
- x509->basicConstSet = dCert->extBasicConstSet;
- x509->basicConstCrit = dCert->extBasicConstCrit;
- x509->basicConstPlSet = dCert->extBasicConstPlSet;
- x509->subjAltNameSet = dCert->extSubjAltNameSet;
- x509->subjAltNameCrit = dCert->extSubjAltNameCrit;
- x509->authKeyIdSet = dCert->extAuthKeyIdSet;
- x509->authKeyIdCrit = dCert->extAuthKeyIdCrit;
- if (dCert->extAuthKeyIdSrc != NULL && dCert->extAuthKeyIdSz != 0) {
- x509->authKeyId = (byte*)XMALLOC(dCert->extAuthKeyIdSz, NULL, 0);
- if (x509->authKeyId != NULL) {
- XMEMCPY(x509->authKeyId,
- dCert->extAuthKeyIdSrc, dCert->extAuthKeyIdSz);
- x509->authKeyIdSz = dCert->extAuthKeyIdSz;
- }
- else
- ret = MEMORY_E;
- }
- x509->subjKeyIdSet = dCert->extSubjKeyIdSet;
- x509->subjKeyIdCrit = dCert->extSubjKeyIdCrit;
- if (dCert->extSubjKeyIdSrc != NULL && dCert->extSubjKeyIdSz != 0) {
- x509->subjKeyId = (byte*)XMALLOC(dCert->extSubjKeyIdSz, NULL, 0);
- if (x509->subjKeyId != NULL) {
- XMEMCPY(x509->subjKeyId,
- dCert->extSubjKeyIdSrc, dCert->extSubjKeyIdSz);
- x509->subjKeyIdSz = dCert->extSubjKeyIdSz;
- }
- else
- ret = MEMORY_E;
- }
- x509->keyUsageSet = dCert->extKeyUsageSet;
- x509->keyUsageCrit = dCert->extKeyUsageCrit;
- #ifdef CYASSL_SEP
- x509->certPolicySet = dCert->extCertPolicySet;
- x509->certPolicyCrit = dCert->extCertPolicyCrit;
- #endif /* CYASSL_SEP */
-#endif /* OPENSSL_EXTRA */
-#ifdef HAVE_ECC
- x509->pkCurveOID = dCert->pkCurveOID;
-#endif /* HAVE_ECC */
-
- return ret;
-}
-
-#endif /* KEEP_PEER_CERT || SESSION_CERTS */
-
-
-static int DoCertificate(CYASSL* ssl, byte* input, word32* inOutIdx,
- word32 size)
-{
- word32 listSz, begin = *inOutIdx;
- int ret = 0;
- int anyError = 0;
- int totalCerts = 0; /* number of certs in certs buffer */
- int count;
- char domain[ASN_NAME_MAX];
- buffer certs[MAX_CHAIN_DEPTH];
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("Certificate", &ssl->handShakeInfo);
- if (ssl->toInfoOn) AddLateName("Certificate", &ssl->timeoutInfo);
- #endif
-
- if ((*inOutIdx - begin) + OPAQUE24_LEN > size)
- return BUFFER_ERROR;
-
- c24to32(input + *inOutIdx, &listSz);
- *inOutIdx += OPAQUE24_LEN;
-
-#ifdef HAVE_MAX_FRAGMENT
- if (listSz > ssl->max_fragment)
- return BUFFER_E;
-#else
- if (listSz > MAX_RECORD_SIZE)
- return BUFFER_E;
-#endif
-
- if ((*inOutIdx - begin) + listSz != size)
- return BUFFER_ERROR;
-
- CYASSL_MSG("Loading peer's cert chain");
- /* first put cert chain into buffer so can verify top down
- we're sent bottom up */
- while (listSz) {
- word32 certSz;
-
- if (totalCerts >= MAX_CHAIN_DEPTH)
- return MAX_CHAIN_ERROR;
-
- if ((*inOutIdx - begin) + OPAQUE24_LEN > size)
- return BUFFER_ERROR;
-
- c24to32(input + *inOutIdx, &certSz);
- *inOutIdx += OPAQUE24_LEN;
-
- if ((*inOutIdx - begin) + certSz > size)
- return BUFFER_ERROR;
-
- certs[totalCerts].length = certSz;
- certs[totalCerts].buffer = input + *inOutIdx;
-
-#ifdef SESSION_CERTS
- if (ssl->session.chain.count < MAX_CHAIN_DEPTH &&
- certSz < MAX_X509_SIZE) {
- ssl->session.chain.certs[ssl->session.chain.count].length = certSz;
- XMEMCPY(ssl->session.chain.certs[ssl->session.chain.count].buffer,
- input + *inOutIdx, certSz);
- ssl->session.chain.count++;
- } else {
- CYASSL_MSG("Couldn't store chain cert for session");
- }
-#endif
-
- *inOutIdx += certSz;
- listSz -= certSz + CERT_HEADER_SZ;
-
- totalCerts++;
- CYASSL_MSG(" Put another cert into chain");
- }
-
- count = totalCerts;
-
- /* verify up to peer's first */
- while (count > 1) {
- buffer myCert = certs[count - 1];
- DecodedCert dCert;
- byte* subjectHash;
-
- InitDecodedCert(&dCert, myCert.buffer, myCert.length, ssl->heap);
- ret = ParseCertRelative(&dCert, CERT_TYPE, !ssl->options.verifyNone,
- ssl->ctx->cm);
- #ifndef NO_SKID
- subjectHash = dCert.extSubjKeyId;
- #else
- subjectHash = dCert.subjectHash;
- #endif
-
- if (ret == 0 && dCert.isCA == 0) {
- CYASSL_MSG("Chain cert is not a CA, not adding as one");
- }
- else if (ret == 0 && ssl->options.verifyNone) {
- CYASSL_MSG("Chain cert not verified by option, not adding as CA");
- }
- else if (ret == 0 && !AlreadySigner(ssl->ctx->cm, subjectHash)) {
- buffer add;
- add.length = myCert.length;
- add.buffer = (byte*)XMALLOC(myCert.length, ssl->heap,
- DYNAMIC_TYPE_CA);
- CYASSL_MSG("Adding CA from chain");
-
- if (add.buffer == NULL)
- return MEMORY_E;
- XMEMCPY(add.buffer, myCert.buffer, myCert.length);
-
- ret = AddCA(ssl->ctx->cm, add, CYASSL_CHAIN_CA,
- ssl->ctx->verifyPeer);
- if (ret == 1) ret = 0; /* SSL_SUCCESS for external */
- }
- else if (ret != 0) {
- CYASSL_MSG("Failed to verify CA from chain");
- }
- else {
- CYASSL_MSG("Verified CA from chain and already had it");
- }
-
-#ifdef HAVE_CRL
- if (ret == 0 && ssl->ctx->cm->crlEnabled && ssl->ctx->cm->crlCheckAll) {
- CYASSL_MSG("Doing Non Leaf CRL check");
- ret = CheckCertCRL(ssl->ctx->cm->crl, &dCert);
-
- if (ret != 0) {
- CYASSL_MSG("\tCRL check not ok");
- }
- }
-#endif /* HAVE_CRL */
-
- if (ret != 0 && anyError == 0)
- anyError = ret; /* save error from last time */
-
- FreeDecodedCert(&dCert);
- count--;
- }
-
- /* peer's, may not have one if blank client cert sent by TLSv1.2 */
- if (count) {
- buffer myCert = certs[0];
- DecodedCert dCert;
- int fatal = 0;
-
- CYASSL_MSG("Verifying Peer's cert");
-
- InitDecodedCert(&dCert, myCert.buffer, myCert.length, ssl->heap);
- ret = ParseCertRelative(&dCert, CERT_TYPE, !ssl->options.verifyNone,
- ssl->ctx->cm);
- if (ret == 0) {
- CYASSL_MSG("Verified Peer's cert");
- fatal = 0;
- }
- else if (ret == ASN_PARSE_E) {
- CYASSL_MSG("Got Peer cert ASN PARSE ERROR, fatal");
- fatal = 1;
- }
- else {
- CYASSL_MSG("Failed to verify Peer's cert");
- if (ssl->verifyCallback) {
- CYASSL_MSG("\tCallback override available, will continue");
- fatal = 0;
- }
- else {
- CYASSL_MSG("\tNo callback override available, fatal");
- fatal = 1;
- }
- }
-
-#ifdef HAVE_OCSP
- if (fatal == 0 && ssl->ctx->cm->ocspEnabled) {
- ret = CheckCertOCSP(ssl->ctx->cm->ocsp, &dCert);
- if (ret != 0) {
- CYASSL_MSG("\tOCSP Lookup not ok");
- fatal = 0;
- }
- }
-#endif
-
-#ifdef HAVE_CRL
- if (fatal == 0 && ssl->ctx->cm->crlEnabled) {
- int doCrlLookup = 1;
-
- #ifdef HAVE_OCSP
- if (ssl->ctx->cm->ocspEnabled) {
- doCrlLookup = (ret == OCSP_CERT_UNKNOWN);
- }
- #endif /* HAVE_OCSP */
-
- if (doCrlLookup) {
- CYASSL_MSG("Doing Leaf CRL check");
- ret = CheckCertCRL(ssl->ctx->cm->crl, &dCert);
-
- if (ret != 0) {
- CYASSL_MSG("\tCRL check not ok");
- fatal = 0;
- }
- }
- }
-
-#endif /* HAVE_CRL */
-
-#ifdef KEEP_PEER_CERT
- {
- /* set X509 format for peer cert even if fatal */
- int copyRet = CopyDecodedToX509(&ssl->peerCert, &dCert);
- if (copyRet == MEMORY_E)
- fatal = 1;
- }
-#endif
-
-#ifndef IGNORE_KEY_EXTENSIONS
- if (dCert.extKeyUsageSet) {
- if ((ssl->specs.kea == rsa_kea) &&
- (dCert.extKeyUsage & KEYUSE_KEY_ENCIPHER) == 0) {
- ret = KEYUSE_ENCIPHER_E;
- }
- if ((ssl->specs.sig_algo == rsa_sa_algo ||
- ssl->specs.sig_algo == ecc_dsa_sa_algo) &&
- (dCert.extKeyUsage & KEYUSE_DIGITAL_SIG) == 0) {
- CYASSL_MSG("KeyUse Digital Sig not set");
- ret = KEYUSE_SIGNATURE_E;
- }
- }
-
- if (dCert.extExtKeyUsageSet) {
- if (ssl->options.side == CYASSL_CLIENT_END) {
- if ((dCert.extExtKeyUsage &
- (EXTKEYUSE_ANY | EXTKEYUSE_SERVER_AUTH)) == 0) {
- CYASSL_MSG("ExtKeyUse Server Auth not set");
- ret = EXTKEYUSE_AUTH_E;
- }
- }
- else {
- if ((dCert.extExtKeyUsage &
- (EXTKEYUSE_ANY | EXTKEYUSE_CLIENT_AUTH)) == 0) {
- CYASSL_MSG("ExtKeyUse Client Auth not set");
- ret = EXTKEYUSE_AUTH_E;
- }
- }
- }
-#endif /* IGNORE_KEY_EXTENSIONS */
-
- if (fatal) {
- FreeDecodedCert(&dCert);
- ssl->error = ret;
- return ret;
- }
- ssl->options.havePeerCert = 1;
-
- /* store for callback use */
- if (dCert.subjectCNLen < ASN_NAME_MAX) {
- XMEMCPY(domain, dCert.subjectCN, dCert.subjectCNLen);
- domain[dCert.subjectCNLen] = '\0';
- }
- else
- domain[0] = '\0';
-
- if (!ssl->options.verifyNone && ssl->buffers.domainName.buffer) {
- if (MatchDomainName(dCert.subjectCN, dCert.subjectCNLen,
- (char*)ssl->buffers.domainName.buffer) == 0) {
- CYASSL_MSG("DomainName match on common name failed");
- if (CheckAltNames(&dCert,
- (char*)ssl->buffers.domainName.buffer) == 0 ) {
- CYASSL_MSG("DomainName match on alt names failed too");
- ret = DOMAIN_NAME_MISMATCH; /* try to get peer key still */
- }
- }
- }
-
- /* decode peer key */
- switch (dCert.keyOID) {
- #ifndef NO_RSA
- case RSAk:
- {
- word32 idx = 0;
- if (RsaPublicKeyDecode(dCert.publicKey, &idx,
- ssl->peerRsaKey, dCert.pubKeySize) != 0) {
- ret = PEER_KEY_ERROR;
- }
- else {
- ssl->peerRsaKeyPresent = 1;
- #ifdef HAVE_PK_CALLBACKS
- #ifndef NO_RSA
- ssl->buffers.peerRsaKey.buffer =
- XMALLOC(dCert.pubKeySize,
- ssl->heap, DYNAMIC_TYPE_RSA);
- if (ssl->buffers.peerRsaKey.buffer == NULL)
- ret = MEMORY_ERROR;
- else {
- XMEMCPY(ssl->buffers.peerRsaKey.buffer,
- dCert.publicKey, dCert.pubKeySize);
- ssl->buffers.peerRsaKey.length =
- dCert.pubKeySize;
- }
- #endif /* NO_RSA */
- #endif /*HAVE_PK_CALLBACKS */
- }
- }
- break;
- #endif /* NO_RSA */
- #ifdef HAVE_NTRU
- case NTRUk:
- {
- if (dCert.pubKeySize > sizeof(ssl->peerNtruKey)) {
- ret = PEER_KEY_ERROR;
- }
- else {
- XMEMCPY(ssl->peerNtruKey, dCert.publicKey, dCert.pubKeySize);
- ssl->peerNtruKeyLen = (word16)dCert.pubKeySize;
- ssl->peerNtruKeyPresent = 1;
- }
- }
- break;
- #endif /* HAVE_NTRU */
- #ifdef HAVE_ECC
- case ECDSAk:
- {
- if (ecc_import_x963(dCert.publicKey, dCert.pubKeySize,
- ssl->peerEccDsaKey) != 0) {
- ret = PEER_KEY_ERROR;
- }
- else {
- ssl->peerEccDsaKeyPresent = 1;
- #ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ssl->buffers.peerEccDsaKey.buffer =
- XMALLOC(dCert.pubKeySize,
- ssl->heap, DYNAMIC_TYPE_ECC);
- if (ssl->buffers.peerEccDsaKey.buffer == NULL)
- ret = MEMORY_ERROR;
- else {
- XMEMCPY(ssl->buffers.peerEccDsaKey.buffer,
- dCert.publicKey, dCert.pubKeySize);
- ssl->buffers.peerEccDsaKey.length =
- dCert.pubKeySize;
- }
- #endif /* HAVE_ECC */
- #endif /*HAVE_PK_CALLBACKS */
- }
- }
- break;
- #endif /* HAVE_ECC */
- default:
- break;
- }
-
- FreeDecodedCert(&dCert);
- }
-
- if (anyError != 0 && ret == 0)
- ret = anyError;
-
- if (ret == 0 && ssl->options.side == CYASSL_CLIENT_END)
- ssl->options.serverState = SERVER_CERT_COMPLETE;
-
- if (ret != 0) {
- if (!ssl->options.verifyNone) {
- int why = bad_certificate;
- if (ret == ASN_AFTER_DATE_E || ret == ASN_BEFORE_DATE_E)
- why = certificate_expired;
- if (ssl->verifyCallback) {
- int ok;
- CYASSL_X509_STORE_CTX store;
-
- store.error = ret;
- store.error_depth = totalCerts;
- store.discardSessionCerts = 0;
- store.domain = domain;
- store.userCtx = ssl->verifyCbCtx;
-#ifdef KEEP_PEER_CERT
- store.current_cert = &ssl->peerCert;
-#else
- store.current_cert = NULL;
-#endif
-#ifdef FORTRESS
- store.ex_data = ssl;
-#endif
- ok = ssl->verifyCallback(0, &store);
- if (ok) {
- CYASSL_MSG("Verify callback overriding error!");
- ret = 0;
- }
- #ifdef SESSION_CERTS
- if (store.discardSessionCerts) {
- CYASSL_MSG("Verify callback requested discard sess certs");
- ssl->session.chain.count = 0;
- }
- #endif
- }
- if (ret != 0) {
- SendAlert(ssl, alert_fatal, why); /* try to send */
- ssl->options.isClosed = 1;
- }
- }
- ssl->error = ret;
- }
-#ifdef CYASSL_ALWAYS_VERIFY_CB
- else {
- if (ssl->verifyCallback) {
- int ok;
- CYASSL_X509_STORE_CTX store;
-
- store.error = ret;
- store.error_depth = totalCerts;
- store.discardSessionCerts = 0;
- store.domain = domain;
- store.userCtx = ssl->verifyCbCtx;
-#ifdef KEEP_PEER_CERT
- store.current_cert = &ssl->peerCert;
-#endif
- store.ex_data = ssl;
-
- ok = ssl->verifyCallback(1, &store);
- if (!ok) {
- CYASSL_MSG("Verify callback overriding valid certificate!");
- ret = -1;
- SendAlert(ssl, alert_fatal, bad_certificate);
- ssl->options.isClosed = 1;
- }
- #ifdef SESSION_CERTS
- if (store.discardSessionCerts) {
- CYASSL_MSG("Verify callback requested discard sess certs");
- ssl->session.chain.count = 0;
- }
- #endif
- }
- }
-#endif
-
- return ret;
-}
-
-#endif /* !NO_CERTS */
-
-
-static int DoHelloRequest(CYASSL* ssl, const byte* input, word32* inOutIdx,
- word32 size, word32 totalSz)
-{
- int ret = 0;
-
- if (size) /* must be 0 */
- return BUFFER_ERROR;
-
- if (ssl->keys.encryptionOn) {
- byte verify[MAX_DIGEST_SIZE];
- int padSz = ssl->keys.encryptSz - HANDSHAKE_HEADER_SZ -
- ssl->specs.hash_size;
-
- ret = ssl->hmac(ssl, verify, input + *inOutIdx - HANDSHAKE_HEADER_SZ,
- HANDSHAKE_HEADER_SZ, handshake, 1);
- if (ret != 0)
- return ret;
-
- if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
- padSz -= ssl->specs.block_size;
-
- /* access beyond input + size should be checked against totalSz */
- if ((word32) (*inOutIdx + ssl->specs.hash_size + padSz) > totalSz)
- return INCOMPLETE_DATA;
-
- /* verify */
- if (XMEMCMP(input + *inOutIdx, verify, ssl->specs.hash_size) != 0) {
- CYASSL_MSG(" hello_request verify mac error");
- return VERIFY_MAC_ERROR;
- }
-
- *inOutIdx += ssl->specs.hash_size + padSz;
- }
-
- if (ssl->options.side == CYASSL_SERVER_END) {
- SendAlert(ssl, alert_fatal, unexpected_message); /* try */
- return FATAL_ERROR;
- }
- else
- return SendAlert(ssl, alert_warning, no_renegotiation);
-}
-
-
-int DoFinished(CYASSL* ssl, const byte* input, word32* inOutIdx, word32 size,
- word32 totalSz, int sniff)
-{
- word32 finishedSz = (ssl->options.tls ? TLS_FINISHED_SZ : FINISHED_SZ);
-
- if (finishedSz != size)
- return BUFFER_ERROR;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("Finished", &ssl->handShakeInfo);
- if (ssl->toInfoOn) AddLateName("Finished", &ssl->timeoutInfo);
- #endif
-
- if (sniff == NO_SNIFF) {
- if (XMEMCMP(input + *inOutIdx, &ssl->verifyHashes, size) != 0) {
- CYASSL_MSG("Verify finished error on hashes");
- return VERIFY_FINISHED_ERROR;
- }
- }
-
- /* increment beyond input + size should be checked against totalSz */
- if (*inOutIdx + size + ssl->keys.padSz > totalSz)
- return INCOMPLETE_DATA;
-
- /* force input exhaustion at ProcessReply consuming padSz */
- *inOutIdx += size + ssl->keys.padSz;
-
- if (ssl->options.side == CYASSL_CLIENT_END) {
- ssl->options.serverState = SERVER_FINISHED_COMPLETE;
- if (!ssl->options.resuming) {
- ssl->options.handShakeState = HANDSHAKE_DONE;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- /* Other side has received our Finished, go to next epoch */
- ssl->keys.dtls_epoch++;
- ssl->keys.dtls_sequence_number = 1;
- }
-#endif
- }
- }
- else {
- ssl->options.clientState = CLIENT_FINISHED_COMPLETE;
- if (ssl->options.resuming) {
- ssl->options.handShakeState = HANDSHAKE_DONE;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- /* Other side has received our Finished, go to next epoch */
- ssl->keys.dtls_epoch++;
- ssl->keys.dtls_sequence_number = 1;
- }
-#endif
- }
- }
-
- return 0;
-}
-
-
-static int DoHandShakeMsgType(CYASSL* ssl, byte* input, word32* inOutIdx,
- byte type, word32 size, word32 totalSz)
-{
- int ret = 0;
- (void)totalSz;
-
- CYASSL_ENTER("DoHandShakeMsgType");
-
- /* make sure can read the message */
- if (*inOutIdx + size > totalSz)
- return INCOMPLETE_DATA;
-
- ret = HashInput(ssl, input + *inOutIdx, size);
- if (ret != 0)
- return ret;
-
-#ifdef CYASSL_CALLBACKS
- /* add name later, add on record and handshake header part back on */
- if (ssl->toInfoOn) {
- int add = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- AddPacketInfo(0, &ssl->timeoutInfo, input + *inOutIdx - add,
- size + add, ssl->heap);
- AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo);
- }
-#endif
-
- if (ssl->options.handShakeState == HANDSHAKE_DONE && type != hello_request){
- CYASSL_MSG("HandShake message after handshake complete");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
- if (ssl->options.side == CYASSL_CLIENT_END && ssl->options.dtls == 0 &&
- ssl->options.serverState == NULL_STATE && type != server_hello) {
- CYASSL_MSG("First server message not server hello");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
- if (ssl->options.side == CYASSL_CLIENT_END && ssl->options.dtls &&
- type == server_hello_done &&
- ssl->options.serverState < SERVER_HELLO_COMPLETE) {
- CYASSL_MSG("Server hello done received before server hello in DTLS");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
- if (ssl->options.side == CYASSL_SERVER_END &&
- ssl->options.clientState == NULL_STATE && type != client_hello) {
- CYASSL_MSG("First client message not client hello");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
-
- switch (type) {
-
- case hello_request:
- CYASSL_MSG("processing hello request");
- ret = DoHelloRequest(ssl, input, inOutIdx, size, totalSz);
- break;
-
-#ifndef NO_CYASSL_CLIENT
- case hello_verify_request:
- CYASSL_MSG("processing hello verify request");
- ret = DoHelloVerifyRequest(ssl, input,inOutIdx, size);
- break;
-
- case server_hello:
- CYASSL_MSG("processing server hello");
- ret = DoServerHello(ssl, input, inOutIdx, size);
- break;
-
-#ifndef NO_CERTS
- case certificate_request:
- CYASSL_MSG("processing certificate request");
- ret = DoCertificateRequest(ssl, input, inOutIdx, size);
- break;
-#endif
-
- case server_key_exchange:
- CYASSL_MSG("processing server key exchange");
- ret = DoServerKeyExchange(ssl, input, inOutIdx, size);
- break;
-#endif
-
-#ifndef NO_CERTS
- case certificate:
- CYASSL_MSG("processing certificate");
- ret = DoCertificate(ssl, input, inOutIdx, size);
- break;
-#endif
-
- case server_hello_done:
- CYASSL_MSG("processing server hello done");
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerHelloDone", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("ServerHelloDone", &ssl->timeoutInfo);
- #endif
- ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
- break;
-
- case finished:
- CYASSL_MSG("processing finished");
- ret = DoFinished(ssl, input, inOutIdx, size, totalSz, NO_SNIFF);
- break;
-
-#ifndef NO_CYASSL_SERVER
- case client_hello:
- CYASSL_MSG("processing client hello");
- ret = DoClientHello(ssl, input, inOutIdx, size);
- break;
-
- case client_key_exchange:
- CYASSL_MSG("processing client key exchange");
- ret = DoClientKeyExchange(ssl, input, inOutIdx, size);
- break;
-
-#if !defined(NO_RSA) || defined(HAVE_ECC)
- case certificate_verify:
- CYASSL_MSG("processing certificate verify");
- ret = DoCertificateVerify(ssl, input, inOutIdx, size);
- break;
-#endif /* !NO_RSA || HAVE_ECC */
-
-#endif /* !NO_CYASSL_SERVER */
-
- default:
- CYASSL_MSG("Unknown handshake message type");
- ret = UNKNOWN_HANDSHAKE_TYPE;
- break;
- }
-
- CYASSL_LEAVE("DoHandShakeMsgType()", ret);
- return ret;
-}
-
-
-static int DoHandShakeMsg(CYASSL* ssl, byte* input, word32* inOutIdx,
- word32 totalSz)
-{
- byte type;
- word32 size;
- int ret = 0;
-
- CYASSL_ENTER("DoHandShakeMsg()");
-
- if (GetHandShakeHeader(ssl, input, inOutIdx, &type, &size) != 0)
- return PARSE_ERROR;
-
- ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz);
-
- CYASSL_LEAVE("DoHandShakeMsg()", ret);
- return ret;
-}
-
-
-#ifdef CYASSL_DTLS
-
-static INLINE int DtlsCheckWindow(DtlsState* state)
-{
- word32 cur;
- word32 next;
- DtlsSeq window;
-
- if (state->curEpoch == state->nextEpoch) {
- next = state->nextSeq;
- window = state->window;
- }
- else if (state->curEpoch < state->nextEpoch) {
- next = state->prevSeq;
- window = state->prevWindow;
- }
- else {
- return 0;
- }
-
- cur = state->curSeq;
-
- if ((next > DTLS_SEQ_BITS) && (cur < next - DTLS_SEQ_BITS)) {
- return 0;
- }
- else if ((cur < next) && (window & (1 << (next - cur - 1)))) {
- return 0;
- }
-
- return 1;
-}
-
-
-static INLINE int DtlsUpdateWindow(DtlsState* state)
-{
- word32 cur;
- word32* next;
- DtlsSeq* window;
-
- if (state->curEpoch == state->nextEpoch) {
- next = &state->nextSeq;
- window = &state->window;
- }
- else {
- next = &state->prevSeq;
- window = &state->prevWindow;
- }
-
- cur = state->curSeq;
-
- if (cur < *next) {
- *window |= (1 << (*next - cur - 1));
- }
- else {
- *window <<= (1 + cur - *next);
- *window |= 1;
- *next = cur + 1;
- }
-
- return 1;
-}
-
-
-static int DtlsMsgDrain(CYASSL* ssl)
-{
- DtlsMsg* item = ssl->dtls_msg_list;
- int ret = 0;
-
- /* While there is an item in the store list, and it is the expected
- * message, and it is complete, and there hasn't been an error in the
- * last messge... */
- while (item != NULL &&
- ssl->keys.dtls_expected_peer_handshake_number == item->seq &&
- item->fragSz == item->sz &&
- ret == 0) {
- word32 idx = 0;
- ssl->keys.dtls_expected_peer_handshake_number++;
- ret = DoHandShakeMsgType(ssl, item->msg,
- &idx, item->type, item->sz, item->sz);
- ssl->dtls_msg_list = item->next;
- DtlsMsgDelete(item, ssl->heap);
- item = ssl->dtls_msg_list;
- }
-
- return ret;
-}
-
-
-static int DoDtlsHandShakeMsg(CYASSL* ssl, byte* input, word32* inOutIdx,
- word32 totalSz)
-{
- byte type;
- word32 size;
- word32 fragOffset, fragSz;
- int ret = 0;
-
- CYASSL_ENTER("DoDtlsHandShakeMsg()");
- if (GetDtlsHandShakeHeader(ssl, input, inOutIdx, &type,
- &size, &fragOffset, &fragSz) != 0)
- return PARSE_ERROR;
-
- if (*inOutIdx + fragSz > totalSz)
- return INCOMPLETE_DATA;
-
- /* Check the handshake sequence number first. If out of order,
- * add the current message to the list. If the message is in order,
- * but it is a fragment, add the current message to the list, then
- * check the head of the list to see if it is complete, if so, pop
- * it out as the current message. If the message is complete and in
- * order, process it. Check the head of the list to see if it is in
- * order, if so, process it. (Repeat until list exhausted.) If the
- * head is out of order, return for more processing.
- */
- if (ssl->keys.dtls_peer_handshake_number >
- ssl->keys.dtls_expected_peer_handshake_number) {
- /* Current message is out of order. It will get stored in the list.
- * Storing also takes care of defragmentation. */
- ssl->dtls_msg_list = DtlsMsgStore(ssl->dtls_msg_list,
- ssl->keys.dtls_peer_handshake_number, input + *inOutIdx,
- size, type, fragOffset, fragSz, ssl->heap);
- *inOutIdx += fragSz;
- ret = 0;
- }
- else if (ssl->keys.dtls_peer_handshake_number <
- ssl->keys.dtls_expected_peer_handshake_number) {
- /* Already saw this message and processed it. It can be ignored. */
- *inOutIdx += fragSz;
- ret = 0;
- }
- else if (fragSz < size) {
- /* Since this branch is in order, but fragmented, dtls_msg_list will be
- * pointing to the message with this fragment in it. Check it to see
- * if it is completed. */
- ssl->dtls_msg_list = DtlsMsgStore(ssl->dtls_msg_list,
- ssl->keys.dtls_peer_handshake_number, input + *inOutIdx,
- size, type, fragOffset, fragSz, ssl->heap);
- *inOutIdx += fragSz;
- ret = 0;
- if (ssl->dtls_msg_list != NULL &&
- ssl->dtls_msg_list->fragSz >= ssl->dtls_msg_list->sz)
- ret = DtlsMsgDrain(ssl);
- }
- else {
- /* This branch is in order next, and a complete message. */
- ssl->keys.dtls_expected_peer_handshake_number++;
- ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz);
- if (ret == 0 && ssl->dtls_msg_list != NULL)
- ret = DtlsMsgDrain(ssl);
- }
-
- CYASSL_LEAVE("DoDtlsHandShakeMsg()", ret);
- return ret;
-}
-#endif
-
-
-static INLINE word32 GetSEQIncrement(CYASSL* ssl, int verify)
-{
- if (verify)
- return ssl->keys.peer_sequence_number++;
- else
- return ssl->keys.sequence_number++;
-}
-
-
-#ifdef HAVE_AEAD
-static INLINE void AeadIncrementExpIV(CYASSL* ssl)
-{
- int i;
- for (i = AEAD_EXP_IV_SZ-1; i >= 0; i--) {
- if (++ssl->keys.aead_exp_IV[i]) return;
- }
-}
-#endif
-
-
-static INLINE int Encrypt(CYASSL* ssl, byte* out, const byte* input, word16 sz)
-{
- (void)out;
- (void)input;
- (void)sz;
-
- if (ssl->encrypt.setup == 0) {
- CYASSL_MSG("Encrypt ciphers not setup");
- return ENCRYPT_ERROR;
- }
-
- switch (ssl->specs.bulk_cipher_algorithm) {
- #ifdef BUILD_ARC4
- case cyassl_rc4:
- Arc4Process(ssl->encrypt.arc4, out, input, sz);
- break;
- #endif
-
- #ifdef BUILD_DES3
- case cyassl_triple_des:
- return Des3_CbcEncrypt(ssl->encrypt.des3, out, input, sz);
- #endif
-
- #ifdef BUILD_AES
- case cyassl_aes:
- return AesCbcEncrypt(ssl->encrypt.aes, out, input, sz);
- #endif
-
- #ifdef BUILD_AESGCM
- case cyassl_aes_gcm:
- {
- byte additional[AES_BLOCK_SIZE];
- byte nonce[AEAD_NONCE_SZ];
- const byte* additionalSrc = input - 5;
-
- XMEMSET(additional, 0, AES_BLOCK_SIZE);
-
- /* sequence number field is 64-bits, we only use 32-bits */
- c32toa(GetSEQIncrement(ssl, 0),
- additional + AEAD_SEQ_OFFSET);
-
- /* Store the type, version. Unfortunately, they are in
- * the input buffer ahead of the plaintext. */
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- additionalSrc -= DTLS_HANDSHAKE_EXTRA;
- #endif
- XMEMCPY(additional + AEAD_TYPE_OFFSET, additionalSrc, 3);
-
- /* Store the length of the plain text minus the explicit
- * IV length minus the authentication tag size. */
- c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- additional + AEAD_LEN_OFFSET);
- XMEMCPY(nonce,
- ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
- XMEMCPY(nonce + AEAD_IMP_IV_SZ,
- ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
- AesGcmEncrypt(ssl->encrypt.aes,
- out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
- sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- nonce, AEAD_NONCE_SZ,
- out + sz - ssl->specs.aead_mac_size,
- ssl->specs.aead_mac_size, additional,
- AEAD_AUTH_DATA_SZ);
- AeadIncrementExpIV(ssl);
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
- }
- break;
- #endif
-
- #ifdef HAVE_AESCCM
- case cyassl_aes_ccm:
- {
- byte additional[AES_BLOCK_SIZE];
- byte nonce[AEAD_NONCE_SZ];
- const byte* additionalSrc = input - 5;
-
- XMEMSET(additional, 0, AES_BLOCK_SIZE);
-
- /* sequence number field is 64-bits, we only use 32-bits */
- c32toa(GetSEQIncrement(ssl, 0),
- additional + AEAD_SEQ_OFFSET);
-
- /* Store the type, version. Unfortunately, they are in
- * the input buffer ahead of the plaintext. */
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- c16toa(ssl->keys.dtls_epoch, additional);
- additionalSrc -= DTLS_HANDSHAKE_EXTRA;
- }
- #endif
- XMEMCPY(additional + AEAD_TYPE_OFFSET, additionalSrc, 3);
-
- /* Store the length of the plain text minus the explicit
- * IV length minus the authentication tag size. */
- c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- additional + AEAD_LEN_OFFSET);
- XMEMCPY(nonce,
- ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
- XMEMCPY(nonce + AEAD_IMP_IV_SZ,
- ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
- AesCcmEncrypt(ssl->encrypt.aes,
- out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
- sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- nonce, AEAD_NONCE_SZ,
- out + sz - ssl->specs.aead_mac_size,
- ssl->specs.aead_mac_size,
- additional, AEAD_AUTH_DATA_SZ);
- AeadIncrementExpIV(ssl);
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
-
- break;
- }
- #endif
-
- #ifdef HAVE_CAMELLIA
- case cyassl_camellia:
- CamelliaCbcEncrypt(ssl->encrypt.cam, out, input, sz);
- break;
- #endif
-
- #ifdef HAVE_HC128
- case cyassl_hc128:
- return Hc128_Process(ssl->encrypt.hc128, out, input, sz);
- #endif
-
- #ifdef BUILD_RABBIT
- case cyassl_rabbit:
- return RabbitProcess(ssl->encrypt.rabbit, out, input, sz);
- #endif
-
- #ifdef HAVE_NULL_CIPHER
- case cyassl_cipher_null:
- if (input != out) {
- XMEMMOVE(out, input, sz);
- }
- break;
- #endif
-
- default:
- CYASSL_MSG("CyaSSL Encrypt programming error");
- return ENCRYPT_ERROR;
- }
-
- return 0;
-}
-
-
-
-static INLINE int Decrypt(CYASSL* ssl, byte* plain, const byte* input,
- word16 sz)
-{
- (void)plain;
- (void)input;
- (void)sz;
-
- if (ssl->decrypt.setup == 0) {
- CYASSL_MSG("Decrypt ciphers not setup");
- return DECRYPT_ERROR;
- }
-
- switch (ssl->specs.bulk_cipher_algorithm) {
- #ifdef BUILD_ARC4
- case cyassl_rc4:
- Arc4Process(ssl->decrypt.arc4, plain, input, sz);
- break;
- #endif
-
- #ifdef BUILD_DES3
- case cyassl_triple_des:
- return Des3_CbcDecrypt(ssl->decrypt.des3, plain, input, sz);
- #endif
-
- #ifdef BUILD_AES
- case cyassl_aes:
- return AesCbcDecrypt(ssl->decrypt.aes, plain, input, sz);
- #endif
-
- #ifdef BUILD_AESGCM
- case cyassl_aes_gcm:
- {
- byte additional[AES_BLOCK_SIZE];
- byte nonce[AEAD_NONCE_SZ];
-
- XMEMSET(additional, 0, AES_BLOCK_SIZE);
-
- /* sequence number field is 64-bits, we only use 32-bits */
- c32toa(GetSEQIncrement(ssl, 1), additional + AEAD_SEQ_OFFSET);
-
- additional[AEAD_TYPE_OFFSET] = ssl->curRL.type;
- additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
- additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
-
- c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- additional + AEAD_LEN_OFFSET);
- XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
- XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
- if (AesGcmDecrypt(ssl->decrypt.aes,
- plain + AEAD_EXP_IV_SZ,
- input + AEAD_EXP_IV_SZ,
- sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- nonce, AEAD_NONCE_SZ,
- input + sz - ssl->specs.aead_mac_size,
- ssl->specs.aead_mac_size,
- additional, AEAD_AUTH_DATA_SZ) < 0) {
- SendAlert(ssl, alert_fatal, bad_record_mac);
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
- return VERIFY_MAC_ERROR;
- }
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
- break;
- }
- #endif
-
- #ifdef HAVE_AESCCM
- case cyassl_aes_ccm:
- {
- byte additional[AES_BLOCK_SIZE];
- byte nonce[AEAD_NONCE_SZ];
-
- XMEMSET(additional, 0, AES_BLOCK_SIZE);
-
- /* sequence number field is 64-bits, we only use 32-bits */
- c32toa(GetSEQIncrement(ssl, 1), additional + AEAD_SEQ_OFFSET);
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- c16toa(ssl->keys.dtls_state.curEpoch, additional);
- #endif
-
- additional[AEAD_TYPE_OFFSET] = ssl->curRL.type;
- additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
- additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
-
- c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- additional + AEAD_LEN_OFFSET);
- XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
- XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
- if (AesCcmDecrypt(ssl->decrypt.aes,
- plain + AEAD_EXP_IV_SZ,
- input + AEAD_EXP_IV_SZ,
- sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
- nonce, AEAD_NONCE_SZ,
- input + sz - ssl->specs.aead_mac_size,
- ssl->specs.aead_mac_size,
- additional, AEAD_AUTH_DATA_SZ) < 0) {
- SendAlert(ssl, alert_fatal, bad_record_mac);
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
- return VERIFY_MAC_ERROR;
- }
- XMEMSET(nonce, 0, AEAD_NONCE_SZ);
- break;
- }
- #endif
-
- #ifdef HAVE_CAMELLIA
- case cyassl_camellia:
- CamelliaCbcDecrypt(ssl->decrypt.cam, plain, input, sz);
- break;
- #endif
-
- #ifdef HAVE_HC128
- case cyassl_hc128:
- return Hc128_Process(ssl->decrypt.hc128, plain, input, sz);
- #endif
-
- #ifdef BUILD_RABBIT
- case cyassl_rabbit:
- return RabbitProcess(ssl->decrypt.rabbit, plain, input, sz);
- #endif
-
- #ifdef HAVE_NULL_CIPHER
- case cyassl_cipher_null:
- if (input != plain) {
- XMEMMOVE(plain, input, sz);
- }
- break;
- #endif
-
- default:
- CYASSL_MSG("CyaSSL Decrypt programming error");
- return DECRYPT_ERROR;
- }
- return 0;
-}
-
-
-/* check cipher text size for sanity */
-static int SanityCheckCipherText(CYASSL* ssl, word32 encryptSz)
-{
-#ifdef HAVE_TRUNCATED_HMAC
- word32 minLength = ssl->truncated_hmac ? TRUNCATED_HMAC_SZ
- : ssl->specs.hash_size;
-#else
- word32 minLength = ssl->specs.hash_size; /* covers stream */
-#endif
-
- if (ssl->specs.cipher_type == block) {
- if (encryptSz % ssl->specs.block_size) {
- CYASSL_MSG("Block ciphertext not block size");
- return SANITY_CIPHER_E;
- }
-
- minLength++; /* pad byte */
-
- if (ssl->specs.block_size > minLength)
- minLength = ssl->specs.block_size;
-
- if (ssl->options.tls1_1)
- minLength += ssl->specs.block_size; /* explicit IV */
- }
- else if (ssl->specs.cipher_type == aead) {
- minLength = ssl->specs.aead_mac_size + AEAD_EXP_IV_SZ;
- /* explicit IV + authTag size */
- }
-
- if (encryptSz < minLength) {
- CYASSL_MSG("Ciphertext not minimum size");
- return SANITY_CIPHER_E;
- }
-
- return 0;
-}
-
-
-#ifndef NO_OLD_TLS
-
-static INLINE void Md5Rounds(int rounds, const byte* data, int sz)
-{
- Md5 md5;
- int i;
-
- InitMd5(&md5);
-
- for (i = 0; i < rounds; i++)
- Md5Update(&md5, data, sz);
-}
-
-
-
-/* do a dummy sha round */
-static INLINE void ShaRounds(int rounds, const byte* data, int sz)
-{
- Sha sha;
- int i;
-
- InitSha(&sha); /* no error check on purpose, dummy round */
-
- for (i = 0; i < rounds; i++)
- ShaUpdate(&sha, data, sz);
-}
-#endif
-
-
-#ifndef NO_SHA256
-
-static INLINE void Sha256Rounds(int rounds, const byte* data, int sz)
-{
- Sha256 sha256;
- int i;
-
- InitSha256(&sha256); /* no error check on purpose, dummy round */
-
- for (i = 0; i < rounds; i++) {
- Sha256Update(&sha256, data, sz);
- /* no error check on purpose, dummy round */
- }
-
-}
-
-#endif
-
-
-#ifdef CYASSL_SHA384
-
-static INLINE void Sha384Rounds(int rounds, const byte* data, int sz)
-{
- Sha384 sha384;
- int i;
-
- InitSha384(&sha384); /* no error check on purpose, dummy round */
-
- for (i = 0; i < rounds; i++) {
- Sha384Update(&sha384, data, sz);
- /* no error check on purpose, dummy round */
- }
-}
-
-#endif
-
-
-#ifdef CYASSL_SHA512
-
-static INLINE void Sha512Rounds(int rounds, const byte* data, int sz)
-{
- Sha512 sha512;
- int i;
-
- InitSha512(&sha512); /* no error check on purpose, dummy round */
-
- for (i = 0; i < rounds; i++) {
- Sha512Update(&sha512, data, sz);
- /* no error check on purpose, dummy round */
- }
-}
-
-#endif
-
-
-#ifdef CYASSL_RIPEMD
-
-static INLINE void RmdRounds(int rounds, const byte* data, int sz)
-{
- RipeMd ripemd;
- int i;
-
- InitRipeMd(&ripemd);
-
- for (i = 0; i < rounds; i++)
- RipeMdUpdate(&ripemd, data, sz);
-}
-
-#endif
-
-
-/* Do dummy rounds */
-static INLINE void DoRounds(int type, int rounds, const byte* data, int sz)
-{
- switch (type) {
-
- case no_mac :
- break;
-
-#ifndef NO_OLD_TLS
-#ifndef NO_MD5
- case md5_mac :
- Md5Rounds(rounds, data, sz);
- break;
-#endif
-
-#ifndef NO_SHA
- case sha_mac :
- ShaRounds(rounds, data, sz);
- break;
-#endif
-#endif
-
-#ifndef NO_SHA256
- case sha256_mac :
- Sha256Rounds(rounds, data, sz);
- break;
-#endif
-
-#ifdef CYASSL_SHA384
- case sha384_mac :
- Sha384Rounds(rounds, data, sz);
- break;
-#endif
-
-#ifdef CYASSL_SHA512
- case sha512_mac :
- Sha512Rounds(rounds, data, sz);
- break;
-#endif
-
-#ifdef CYASSL_RIPEMD
- case rmd_mac :
- RmdRounds(rounds, data, sz);
- break;
-#endif
-
- default:
- CYASSL_MSG("Bad round type");
- break;
- }
-}
-
-
-/* do number of compression rounds on dummy data */
-static INLINE void CompressRounds(CYASSL* ssl, int rounds, const byte* dummy)
-{
- if (rounds)
- DoRounds(ssl->specs.mac_algorithm, rounds, dummy, COMPRESS_LOWER);
-}
-
-
-/* check all length bytes for equality, return 0 on success */
-static int ConstantCompare(const byte* a, const byte* b, int length)
-{
- int i;
- int good = 0;
- int bad = 0;
-
- for (i = 0; i < length; i++) {
- if (a[i] == b[i])
- good++;
- else
- bad++;
- }
-
- if (good == length)
- return 0;
- else
- return 0 - bad; /* compare failed */
-}
-
-
-/* check all length bytes for the pad value, return 0 on success */
-static int PadCheck(const byte* input, byte pad, int length)
-{
- int i;
- int good = 0;
- int bad = 0;
-
- for (i = 0; i < length; i++) {
- if (input[i] == pad)
- good++;
- else
- bad++;
- }
-
- if (good == length)
- return 0;
- else
- return 0 - bad; /* pad check failed */
-}
-
-
-/* get compression extra rounds */
-static INLINE int GetRounds(int pLen, int padLen, int t)
-{
- int roundL1 = 1; /* round up flags */
- int roundL2 = 1;
-
- int L1 = COMPRESS_CONSTANT + pLen - t;
- int L2 = COMPRESS_CONSTANT + pLen - padLen - 1 - t;
-
- L1 -= COMPRESS_UPPER;
- L2 -= COMPRESS_UPPER;
-
- if ( (L1 % COMPRESS_LOWER) == 0)
- roundL1 = 0;
- if ( (L2 % COMPRESS_LOWER) == 0)
- roundL2 = 0;
-
- L1 /= COMPRESS_LOWER;
- L2 /= COMPRESS_LOWER;
-
- L1 += roundL1;
- L2 += roundL2;
-
- return L1 - L2;
-}
-
-
-/* timing resistant pad/verify check, return 0 on success */
-static int TimingPadVerify(CYASSL* ssl, const byte* input, int padLen, int t,
- int pLen, int content)
-{
- byte verify[MAX_DIGEST_SIZE];
- byte dummy[MAX_PAD_SIZE];
- int ret = 0;
-
- XMEMSET(dummy, 1, sizeof(dummy));
-
- if ( (t + padLen + 1) > pLen) {
- CYASSL_MSG("Plain Len not long enough for pad/mac");
- PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE);
- ssl->hmac(ssl, verify, input, pLen - t, content, 1); /* still compare */
- ConstantCompare(verify, input + pLen - t, t);
-
- return VERIFY_MAC_ERROR;
- }
-
- if (PadCheck(input + pLen - (padLen + 1), (byte)padLen, padLen + 1) != 0) {
- CYASSL_MSG("PadCheck failed");
- PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE - padLen - 1);
- ssl->hmac(ssl, verify, input, pLen - t, content, 1); /* still compare */
- ConstantCompare(verify, input + pLen - t, t);
-
- return VERIFY_MAC_ERROR;
- }
-
- PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE - padLen - 1);
- ret = ssl->hmac(ssl, verify, input, pLen - padLen - 1 - t, content, 1);
-
- CompressRounds(ssl, GetRounds(pLen, padLen, t), dummy);
-
- if (ConstantCompare(verify, input + (pLen - padLen - 1 - t), t) != 0) {
- CYASSL_MSG("Verify MAC compare failed");
- return VERIFY_MAC_ERROR;
- }
-
- if (ret != 0)
- return VERIFY_MAC_ERROR;
- return 0;
-}
-
-
-int DoApplicationData(CYASSL* ssl, byte* input, word32* inOutIdx)
-{
- word32 msgSz = ssl->keys.encryptSz;
- word32 idx = *inOutIdx;
- int dataSz;
- int ivExtra = 0;
- byte* rawData = input + idx; /* keep current for hmac */
-#ifdef HAVE_LIBZ
- byte decomp[MAX_RECORD_SIZE + MAX_COMP_EXTRA];
-#endif
-
- if (ssl->options.handShakeState != HANDSHAKE_DONE) {
- CYASSL_MSG("Received App data before handshake complete");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
- if (ssl->specs.cipher_type == block) {
- if (ssl->options.tls1_1)
- ivExtra = ssl->specs.block_size;
- }
- else if (ssl->specs.cipher_type == aead) {
- ivExtra = AEAD_EXP_IV_SZ;
- }
-
- dataSz = msgSz - ivExtra - ssl->keys.padSz;
- if (dataSz < 0) {
- CYASSL_MSG("App data buffer error, malicious input?");
- return BUFFER_ERROR;
- }
-
- /* read data */
- if (dataSz) {
- int rawSz = dataSz; /* keep raw size for idx adjustment */
-
-#ifdef HAVE_LIBZ
- if (ssl->options.usingCompression) {
- dataSz = myDeCompress(ssl, rawData, dataSz, decomp, sizeof(decomp));
- if (dataSz < 0) return dataSz;
- }
-#endif
- idx += rawSz;
-
- ssl->buffers.clearOutputBuffer.buffer = rawData;
- ssl->buffers.clearOutputBuffer.length = dataSz;
- }
-
- idx += ssl->keys.padSz;
-
-#ifdef HAVE_LIBZ
- /* decompress could be bigger, overwrite after verify */
- if (ssl->options.usingCompression)
- XMEMMOVE(rawData, decomp, dataSz);
-#endif
-
- *inOutIdx = idx;
- return 0;
-}
-
-
-/* process alert, return level */
-static int DoAlert(CYASSL* ssl, byte* input, word32* inOutIdx, int* type,
- word32 totalSz)
-{
- byte level;
- byte code;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("Alert", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- /* add record header back on to info + 2 byte level, data */
- AddPacketInfo("Alert", &ssl->timeoutInfo, input + *inOutIdx -
- RECORD_HEADER_SZ, 2 + RECORD_HEADER_SZ, ssl->heap);
- #endif
-
- /* make sure can read the message */
- if (*inOutIdx + ALERT_SIZE > totalSz)
- return BUFFER_E;
-
- level = input[(*inOutIdx)++];
- code = input[(*inOutIdx)++];
- ssl->alert_history.last_rx.code = code;
- ssl->alert_history.last_rx.level = level;
- *type = code;
- if (level == alert_fatal) {
- ssl->options.isClosed = 1; /* Don't send close_notify */
- }
-
- CYASSL_MSG("Got alert");
- if (*type == close_notify) {
- CYASSL_MSG(" close notify");
- ssl->options.closeNotify = 1;
- }
- CYASSL_ERROR(*type);
-
- if (ssl->keys.encryptionOn) {
- if (*inOutIdx + ssl->keys.padSz > totalSz)
- return BUFFER_E;
- *inOutIdx += ssl->keys.padSz;
- }
-
- return level;
-}
-
-static int GetInputData(CYASSL *ssl, word32 size)
-{
- int in;
- int inSz;
- int maxLength;
- int usedLength;
- int dtlsExtra = 0;
-
-
- /* check max input length */
- usedLength = ssl->buffers.inputBuffer.length - ssl->buffers.inputBuffer.idx;
- maxLength = ssl->buffers.inputBuffer.bufferSize - usedLength;
- inSz = (int)(size - usedLength); /* from last partial read */
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if (size < ssl->dtls_expected_rx)
- dtlsExtra = (int)(ssl->dtls_expected_rx - size);
- inSz = ssl->dtls_expected_rx;
- }
-#endif
-
- if (inSz > maxLength) {
- if (GrowInputBuffer(ssl, size + dtlsExtra, usedLength) < 0)
- return MEMORY_E;
- }
-
- if (inSz <= 0)
- return BUFFER_ERROR;
-
- /* Put buffer data at start if not there */
- if (usedLength > 0 && ssl->buffers.inputBuffer.idx != 0)
- XMEMMOVE(ssl->buffers.inputBuffer.buffer,
- ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx,
- usedLength);
-
- /* remove processed data */
- ssl->buffers.inputBuffer.idx = 0;
- ssl->buffers.inputBuffer.length = usedLength;
-
- /* read data from network */
- do {
- in = Receive(ssl,
- ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.length,
- inSz);
- if (in == -1)
- return SOCKET_ERROR_E;
-
- if (in == WANT_READ)
- return WANT_READ;
-
- if (in > inSz)
- return RECV_OVERFLOW_E;
-
- ssl->buffers.inputBuffer.length += in;
- inSz -= in;
-
- } while (ssl->buffers.inputBuffer.length < size);
-
- return 0;
-}
-
-
-static INLINE int VerifyMac(CYASSL* ssl, const byte* input, word32 msgSz,
- int content, word32* padSz)
-{
- int ivExtra = 0;
- int ret;
- word32 pad = 0;
- word32 padByte = 0;
-#ifdef HAVE_TRUNCATED_HMAC
- word32 digestSz = ssl->truncated_hmac ? TRUNCATED_HMAC_SZ
- : ssl->specs.hash_size;
-#else
- word32 digestSz = ssl->specs.hash_size;
-#endif
- byte verify[MAX_DIGEST_SIZE];
-
- if (ssl->specs.cipher_type == block) {
- if (ssl->options.tls1_1)
- ivExtra = ssl->specs.block_size;
- pad = *(input + msgSz - ivExtra - 1);
- padByte = 1;
-
- if (ssl->options.tls) {
- ret = TimingPadVerify(ssl, input, pad, digestSz, msgSz - ivExtra,
- content);
- if (ret != 0)
- return ret;
- }
- else { /* sslv3, some implementations have bad padding, but don't
- * allow bad read */
- int badPadLen = 0;
- byte dummy[MAX_PAD_SIZE];
-
- XMEMSET(dummy, 1, sizeof(dummy));
-
- if (pad > (msgSz - digestSz - 1)) {
- CYASSL_MSG("Plain Len not long enough for pad/mac");
- pad = 0; /* no bad read */
- badPadLen = 1;
- }
- PadCheck(dummy, (byte)pad, MAX_PAD_SIZE); /* timing only */
- ret = ssl->hmac(ssl, verify, input, msgSz - digestSz - pad - 1,
- content, 1);
- if (ConstantCompare(verify, input + msgSz - digestSz - pad - 1,
- digestSz) != 0)
- return VERIFY_MAC_ERROR;
- if (ret != 0 || badPadLen)
- return VERIFY_MAC_ERROR;
- }
- }
- else if (ssl->specs.cipher_type == stream) {
- ret = ssl->hmac(ssl, verify, input, msgSz - digestSz, content, 1);
- if (ConstantCompare(verify, input + msgSz - digestSz, digestSz) != 0){
- return VERIFY_MAC_ERROR;
- }
- if (ret != 0)
- return VERIFY_MAC_ERROR;
- }
-
- if (ssl->specs.cipher_type == aead) {
- *padSz = ssl->specs.aead_mac_size;
- }
- else {
- *padSz = digestSz + pad + padByte;
- }
-
- return 0;
-}
-
-
-/* process input requests, return 0 is done, 1 is call again to complete, and
- negative number is error */
-int ProcessReply(CYASSL* ssl)
-{
- int ret = 0, type, readSz;
- int atomicUser = 0;
- word32 startIdx = 0;
-#ifndef NO_CYASSL_SERVER
- byte b0, b1;
-#endif
-#ifdef CYASSL_DTLS
- int used;
-#endif
-
-#ifdef ATOMIC_USER
- if (ssl->ctx->DecryptVerifyCb)
- atomicUser = 1;
-#endif
-
- if (ssl->error != 0 && ssl->error != WANT_READ && ssl->error != WANT_WRITE){
- CYASSL_MSG("ProcessReply retry in error state, not allowed");
- return ssl->error;
- }
-
- for (;;) {
- switch (ssl->options.processReply) {
-
- /* in the CYASSL_SERVER case, get the first byte for detecting
- * old client hello */
- case doProcessInit:
-
- readSz = RECORD_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- readSz = DTLS_RECORD_HEADER_SZ;
- #endif
-
- /* get header or return error */
- if (!ssl->options.dtls) {
- if ((ret = GetInputData(ssl, readSz)) < 0)
- return ret;
- } else {
- #ifdef CYASSL_DTLS
- /* read ahead may already have header */
- used = ssl->buffers.inputBuffer.length -
- ssl->buffers.inputBuffer.idx;
- if (used < readSz)
- if ((ret = GetInputData(ssl, readSz)) < 0)
- return ret;
- #endif
- }
-
-#ifndef NO_CYASSL_SERVER
-
- /* see if sending SSLv2 client hello */
- if ( ssl->options.side == CYASSL_SERVER_END &&
- ssl->options.clientState == NULL_STATE &&
- ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx]
- != handshake) {
- ssl->options.processReply = runProcessOldClientHello;
-
- /* how many bytes need ProcessOldClientHello */
- b0 =
- ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++];
- b1 =
- ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++];
- ssl->curSize = (word16)(((b0 & 0x7f) << 8) | b1);
- }
- else {
- ssl->options.processReply = getRecordLayerHeader;
- continue;
- }
-
- /* in the CYASSL_SERVER case, run the old client hello */
- case runProcessOldClientHello:
-
- /* get sz bytes or return error */
- if (!ssl->options.dtls) {
- if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
- return ret;
- } else {
- #ifdef CYASSL_DTLS
- /* read ahead may already have */
- used = ssl->buffers.inputBuffer.length -
- ssl->buffers.inputBuffer.idx;
- if (used < ssl->curSize)
- if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
- return ret;
- #endif /* CYASSL_DTLS */
- }
-
- ret = ProcessOldClientHello(ssl, ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx,
- ssl->buffers.inputBuffer.length -
- ssl->buffers.inputBuffer.idx,
- ssl->curSize);
- if (ret < 0)
- return ret;
-
- else if (ssl->buffers.inputBuffer.idx ==
- ssl->buffers.inputBuffer.length) {
- ssl->options.processReply = doProcessInit;
- return 0;
- }
-
-#endif /* NO_CYASSL_SERVER */
-
- /* get the record layer header */
- case getRecordLayerHeader:
-
- ret = GetRecordHeader(ssl, ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx,
- &ssl->curRL, &ssl->curSize);
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls && ret == SEQUENCE_ERROR) {
- ssl->options.processReply = doProcessInit;
- ssl->buffers.inputBuffer.length = 0;
- ssl->buffers.inputBuffer.idx = 0;
- continue;
- }
-#endif
- if (ret != 0)
- return ret;
-
- ssl->options.processReply = getData;
-
- /* retrieve record layer data */
- case getData:
-
- /* get sz bytes or return error */
- if (!ssl->options.dtls) {
- if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
- return ret;
- } else {
-#ifdef CYASSL_DTLS
- /* read ahead may already have */
- used = ssl->buffers.inputBuffer.length -
- ssl->buffers.inputBuffer.idx;
- if (used < ssl->curSize)
- if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
- return ret;
-#endif
- }
-
- ssl->options.processReply = runProcessingOneMessage;
- startIdx = ssl->buffers.inputBuffer.idx; /* in case > 1 msg per */
-
- /* the record layer is here */
- case runProcessingOneMessage:
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls &&
- ssl->keys.dtls_state.curEpoch < ssl->keys.dtls_state.nextEpoch)
- ssl->keys.decryptedCur = 1;
- #endif
-
- if (ssl->keys.encryptionOn && ssl->keys.decryptedCur == 0)
- {
- ret = SanityCheckCipherText(ssl, ssl->curSize);
- if (ret < 0)
- return ret;
-
- if (atomicUser) {
- #ifdef ATOMIC_USER
- ret = ssl->ctx->DecryptVerifyCb(ssl,
- ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx,
- ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx,
- ssl->curSize, ssl->curRL.type, 1,
- &ssl->keys.padSz, ssl->DecryptVerifyCtx);
- if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
- ssl->buffers.inputBuffer.idx += ssl->specs.block_size;
- /* go past TLSv1.1 IV */
- if (ssl->specs.cipher_type == aead)
- ssl->buffers.inputBuffer.idx += AEAD_EXP_IV_SZ;
- #endif /* ATOMIC_USER */
- }
- else {
- ret = Decrypt(ssl, ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx,
- ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx,
- ssl->curSize);
- if (ret < 0) {
- CYASSL_ERROR(ret);
- return DECRYPT_ERROR;
- }
- if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
- ssl->buffers.inputBuffer.idx += ssl->specs.block_size;
- /* go past TLSv1.1 IV */
- if (ssl->specs.cipher_type == aead)
- ssl->buffers.inputBuffer.idx += AEAD_EXP_IV_SZ;
-
- ret = VerifyMac(ssl, ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx,
- ssl->curSize, ssl->curRL.type,
- &ssl->keys.padSz);
- }
- if (ret < 0) {
- CYASSL_ERROR(ret);
- return DECRYPT_ERROR;
- }
- ssl->keys.encryptSz = ssl->curSize;
- ssl->keys.decryptedCur = 1;
- }
-
- if (ssl->options.dtls) {
- #ifdef CYASSL_DTLS
- DtlsUpdateWindow(&ssl->keys.dtls_state);
- #endif /* CYASSL_DTLS */
- }
-
- CYASSL_MSG("received record layer msg");
-
- switch (ssl->curRL.type) {
- case handshake :
- /* debugging in DoHandShakeMsg */
- if (!ssl->options.dtls) {
- ret = DoHandShakeMsg(ssl,
- ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx,
- ssl->buffers.inputBuffer.length);
- }
- else {
-#ifdef CYASSL_DTLS
- ret = DoDtlsHandShakeMsg(ssl,
- ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx,
- ssl->buffers.inputBuffer.length);
-#endif
- }
- if (ret != 0)
- return ret;
- break;
-
- case change_cipher_spec:
- CYASSL_MSG("got CHANGE CIPHER SPEC");
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ChangeCipher", &ssl->handShakeInfo);
- /* add record header back on info */
- if (ssl->toInfoOn) {
- AddPacketInfo("ChangeCipher", &ssl->timeoutInfo,
- ssl->buffers.inputBuffer.buffer +
- ssl->buffers.inputBuffer.idx - RECORD_HEADER_SZ,
- 1 + RECORD_HEADER_SZ, ssl->heap);
- AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo);
- }
- #endif
-
- if (ssl->curSize != 1) {
- CYASSL_MSG("Malicious or corrupted ChangeCipher msg");
- return LENGTH_ERROR;
- }
- #ifndef NO_CERTS
- if (ssl->options.side == CYASSL_SERVER_END &&
- ssl->options.verifyPeer &&
- ssl->options.havePeerCert)
- if (!ssl->options.havePeerVerify) {
- CYASSL_MSG("client didn't send cert verify");
- return NO_PEER_VERIFY;
- }
- #endif
-
-
- ssl->buffers.inputBuffer.idx++;
- ssl->keys.encryptionOn = 1;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- DtlsPoolReset(ssl);
- ssl->keys.dtls_state.nextEpoch++;
- ssl->keys.dtls_state.nextSeq = 0;
- }
- #endif
-
- #ifdef HAVE_LIBZ
- if (ssl->options.usingCompression)
- if ( (ret = InitStreams(ssl)) != 0)
- return ret;
- #endif
- if (ssl->options.resuming && ssl->options.side ==
- CYASSL_CLIENT_END)
- ret = BuildFinished(ssl, &ssl->verifyHashes, server);
- else if (!ssl->options.resuming && ssl->options.side ==
- CYASSL_SERVER_END)
- ret = BuildFinished(ssl, &ssl->verifyHashes, client);
- if (ret != 0)
- return ret;
- break;
-
- case application_data:
- CYASSL_MSG("got app DATA");
- if ((ret = DoApplicationData(ssl,
- ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx))
- != 0) {
- CYASSL_ERROR(ret);
- return ret;
- }
- break;
-
- case alert:
- CYASSL_MSG("got ALERT!");
- ret = DoAlert(ssl, ssl->buffers.inputBuffer.buffer,
- &ssl->buffers.inputBuffer.idx, &type,
- ssl->buffers.inputBuffer.length);
- if (ret == alert_fatal)
- return FATAL_ERROR;
- else if (ret < 0)
- return ret;
-
- /* catch warnings that are handled as errors */
- if (type == close_notify)
- return ssl->error = ZERO_RETURN;
-
- if (type == decrypt_error)
- return FATAL_ERROR;
- break;
-
- default:
- CYASSL_ERROR(UNKNOWN_RECORD_TYPE);
- return UNKNOWN_RECORD_TYPE;
- }
-
- ssl->options.processReply = doProcessInit;
-
- /* input exhausted? */
- if (ssl->buffers.inputBuffer.idx == ssl->buffers.inputBuffer.length)
- return 0;
- /* more messages per record */
- else if ((ssl->buffers.inputBuffer.idx - startIdx) < ssl->curSize) {
- CYASSL_MSG("More messages in record");
- #ifdef CYASSL_DTLS
- /* read-ahead but dtls doesn't bundle messages per record */
- if (ssl->options.dtls) {
- ssl->options.processReply = doProcessInit;
- continue;
- }
- #endif
- ssl->options.processReply = runProcessingOneMessage;
- continue;
- }
- /* more records */
- else {
- CYASSL_MSG("More records in input");
- ssl->options.processReply = doProcessInit;
- continue;
- }
-
- default:
- CYASSL_MSG("Bad process input state, programming error");
- return INPUT_CASE_ERROR;
- }
- }
-}
-
-
-int SendChangeCipher(CYASSL* ssl)
-{
- byte *output;
- int sendSz = RECORD_HEADER_SZ + ENUM_LEN;
- int idx = RECORD_HEADER_SZ;
- int ret;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA;
- idx += DTLS_RECORD_EXTRA;
- }
- #endif
-
- /* check for avalaible size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddRecordHeader(output, 1, change_cipher_spec, ssl);
-
- output[idx] = 1; /* turn it on */
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("ChangeCipher", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ChangeCipher", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
- #endif
- ssl->buffers.outputBuffer.length += sendSz;
-
- if (ssl->options.groupMessages)
- return 0;
- #ifdef CYASSL_DTLS
- else if (ssl->options.dtls) {
- /* If using DTLS, force the ChangeCipherSpec message to be in the
- * same datagram as the finished message. */
- return 0;
- }
- #endif
- else
- return SendBuffered(ssl);
-}
-
-
-#ifndef NO_OLD_TLS
-static int SSL_hmac(CYASSL* ssl, byte* digest, const byte* in, word32 sz,
- int content, int verify)
-{
- byte result[MAX_DIGEST_SIZE];
- word32 digestSz = ssl->specs.hash_size; /* actual sizes */
- word32 padSz = ssl->specs.pad_size;
- int ret = 0;
-
- Md5 md5;
- Sha sha;
-
- /* data */
- byte seq[SEQ_SZ];
- byte conLen[ENUM_LEN + LENGTH_SZ]; /* content & length */
- const byte* macSecret = CyaSSL_GetMacSecret(ssl, verify);
-
- XMEMSET(seq, 0, SEQ_SZ);
- conLen[0] = (byte)content;
- c16toa((word16)sz, &conLen[ENUM_LEN]);
- c32toa(GetSEQIncrement(ssl, verify), &seq[sizeof(word32)]);
-
- if (ssl->specs.mac_algorithm == md5_mac) {
- InitMd5(&md5);
- /* inner */
- Md5Update(&md5, macSecret, digestSz);
- Md5Update(&md5, PAD1, padSz);
- Md5Update(&md5, seq, SEQ_SZ);
- Md5Update(&md5, conLen, sizeof(conLen));
- /* in buffer */
- Md5Update(&md5, in, sz);
- Md5Final(&md5, result);
- /* outer */
- Md5Update(&md5, macSecret, digestSz);
- Md5Update(&md5, PAD2, padSz);
- Md5Update(&md5, result, digestSz);
- Md5Final(&md5, digest);
- }
- else {
- ret = InitSha(&sha);
- if (ret != 0)
- return ret;
- /* inner */
- ShaUpdate(&sha, macSecret, digestSz);
- ShaUpdate(&sha, PAD1, padSz);
- ShaUpdate(&sha, seq, SEQ_SZ);
- ShaUpdate(&sha, conLen, sizeof(conLen));
- /* in buffer */
- ShaUpdate(&sha, in, sz);
- ShaFinal(&sha, result);
- /* outer */
- ShaUpdate(&sha, macSecret, digestSz);
- ShaUpdate(&sha, PAD2, padSz);
- ShaUpdate(&sha, result, digestSz);
- ShaFinal(&sha, digest);
- }
- return 0;
-}
-
-#ifndef NO_CERTS
-static void BuildMD5_CertVerify(CYASSL* ssl, byte* digest)
-{
- byte md5_result[MD5_DIGEST_SIZE];
-
- /* make md5 inner */
- Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
- Md5Update(&ssl->hashMd5, PAD1, PAD_MD5);
- Md5Final(&ssl->hashMd5, md5_result);
-
- /* make md5 outer */
- Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
- Md5Update(&ssl->hashMd5, PAD2, PAD_MD5);
- Md5Update(&ssl->hashMd5, md5_result, MD5_DIGEST_SIZE);
-
- Md5Final(&ssl->hashMd5, digest);
-}
-
-
-static void BuildSHA_CertVerify(CYASSL* ssl, byte* digest)
-{
- byte sha_result[SHA_DIGEST_SIZE];
-
- /* make sha inner */
- ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
- ShaUpdate(&ssl->hashSha, PAD1, PAD_SHA);
- ShaFinal(&ssl->hashSha, sha_result);
-
- /* make sha outer */
- ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
- ShaUpdate(&ssl->hashSha, PAD2, PAD_SHA);
- ShaUpdate(&ssl->hashSha, sha_result, SHA_DIGEST_SIZE);
-
- ShaFinal(&ssl->hashSha, digest);
-}
-#endif /* NO_CERTS */
-#endif /* NO_OLD_TLS */
-
-
-#ifndef NO_CERTS
-
-static int BuildCertHashes(CYASSL* ssl, Hashes* hashes)
-{
- /* store current states, building requires get_digest which resets state */
- #ifndef NO_OLD_TLS
- Md5 md5 = ssl->hashMd5;
- Sha sha = ssl->hashSha;
- #endif
- #ifndef NO_SHA256
- Sha256 sha256 = ssl->hashSha256;
- #endif
- #ifdef CYASSL_SHA384
- Sha384 sha384 = ssl->hashSha384;
- #endif
-
- if (ssl->options.tls) {
-#if ! defined( NO_OLD_TLS )
- Md5Final(&ssl->hashMd5, hashes->md5);
- ShaFinal(&ssl->hashSha, hashes->sha);
-#endif
- if (IsAtLeastTLSv1_2(ssl)) {
- int ret;
-
- #ifndef NO_SHA256
- ret = Sha256Final(&ssl->hashSha256, hashes->sha256);
- if (ret != 0)
- return ret;
- #endif
- #ifdef CYASSL_SHA384
- ret = Sha384Final(&ssl->hashSha384, hashes->sha384);
- if (ret != 0)
- return ret;
- #endif
- }
- }
-#if ! defined( NO_OLD_TLS )
- else {
- BuildMD5_CertVerify(ssl, hashes->md5);
- BuildSHA_CertVerify(ssl, hashes->sha);
- }
-
- /* restore */
- ssl->hashMd5 = md5;
- ssl->hashSha = sha;
-#endif
- if (IsAtLeastTLSv1_2(ssl)) {
- #ifndef NO_SHA256
- ssl->hashSha256 = sha256;
- #endif
- #ifdef CYASSL_SHA384
- ssl->hashSha384 = sha384;
- #endif
- }
-
- return 0;
-}
-
-#endif /* CYASSL_LEANPSK */
-
-/* Build SSL Message, encrypted */
-static int BuildMessage(CYASSL* ssl, byte* output, const byte* input, int inSz,
- int type)
-{
-#ifdef HAVE_TRUNCATED_HMAC
- word32 digestSz = min(ssl->specs.hash_size,
- ssl->truncated_hmac ? TRUNCATED_HMAC_SZ : ssl->specs.hash_size);
-#else
- word32 digestSz = ssl->specs.hash_size;
-#endif
- word32 sz = RECORD_HEADER_SZ + inSz + digestSz;
- word32 pad = 0, i;
- word32 idx = RECORD_HEADER_SZ;
- word32 ivSz = 0; /* TLSv1.1 IV */
- word32 headerSz = RECORD_HEADER_SZ;
- word16 size;
- byte iv[AES_BLOCK_SIZE]; /* max size */
- int ret = 0;
- int atomicUser = 0;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sz += DTLS_RECORD_EXTRA;
- idx += DTLS_RECORD_EXTRA;
- headerSz += DTLS_RECORD_EXTRA;
- }
-#endif
-
-#ifdef ATOMIC_USER
- if (ssl->ctx->MacEncryptCb)
- atomicUser = 1;
-#endif
-
- if (ssl->specs.cipher_type == block) {
- word32 blockSz = ssl->specs.block_size;
- if (ssl->options.tls1_1) {
- ivSz = blockSz;
- sz += ivSz;
-
- ret = RNG_GenerateBlock(ssl->rng, iv, ivSz);
- if (ret != 0)
- return ret;
-
- }
- sz += 1; /* pad byte */
- pad = (sz - headerSz) % blockSz;
- pad = blockSz - pad;
- sz += pad;
- }
-
-#ifdef HAVE_AEAD
- if (ssl->specs.cipher_type == aead) {
- ivSz = AEAD_EXP_IV_SZ;
- sz += (ivSz + ssl->specs.aead_mac_size - digestSz);
- XMEMCPY(iv, ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
- }
-#endif
- size = (word16)(sz - headerSz); /* include mac and digest */
- AddRecordHeader(output, size, (byte)type, ssl);
-
- /* write to output */
- if (ivSz) {
- XMEMCPY(output + idx, iv, min(ivSz, sizeof(iv)));
- idx += ivSz;
- }
- XMEMCPY(output + idx, input, inSz);
- idx += inSz;
-
- if (type == handshake) {
- ret = HashOutput(ssl, output, headerSz + inSz, ivSz);
- if (ret != 0)
- return ret;
- }
-
- if (ssl->specs.cipher_type == block) {
- word32 tmpIdx = idx + digestSz;
-
- for (i = 0; i <= pad; i++)
- output[tmpIdx++] = (byte)pad; /* pad byte gets pad value too */
- }
-
- if (atomicUser) { /* User Record Layer Callback handling */
-#ifdef ATOMIC_USER
- if ( (ret = ssl->ctx->MacEncryptCb(ssl, output + idx,
- output + headerSz + ivSz, inSz, type, 0,
- output + headerSz, output + headerSz, size,
- ssl->MacEncryptCtx)) != 0)
- return ret;
-#endif
- }
- else {
- if (ssl->specs.cipher_type != aead) {
-#ifdef HAVE_TRUNCATED_HMAC
- if (ssl->truncated_hmac && ssl->specs.hash_size > digestSz) {
- byte hmac[MAX_DIGEST_SIZE];
-
- ret = ssl->hmac(ssl, hmac, output + headerSz + ivSz, inSz,
- type, 0);
- XMEMCPY(output + idx, hmac, digestSz);
- } else
-#endif
- ret = ssl->hmac(ssl, output+idx, output + headerSz + ivSz, inSz,
- type, 0);
- }
- if (ret != 0)
- return ret;
-
- if ( (ret = Encrypt(ssl, output + headerSz, output+headerSz,size)) != 0)
- return ret;
- }
-
- return sz;
-}
-
-
-int SendFinished(CYASSL* ssl)
-{
- int sendSz,
- finishedSz = ssl->options.tls ? TLS_FINISHED_SZ :
- FINISHED_SZ;
- byte input[FINISHED_SZ + DTLS_HANDSHAKE_HEADER_SZ]; /* max */
- byte *output;
- Hashes* hashes;
- int ret;
- int headerSz = HANDSHAKE_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- word32 sequence_number = ssl->keys.dtls_sequence_number;
- word16 epoch = ssl->keys.dtls_epoch;
- #endif
-
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sizeof(input) + MAX_MSG_EXTRA)) != 0)
- return ret;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- /* Send Finished message with the next epoch, but don't commit that
- * change until the other end confirms its reception. */
- headerSz += DTLS_HANDSHAKE_EXTRA;
- ssl->keys.dtls_epoch++;
- ssl->keys.dtls_sequence_number = 0; /* reset after epoch change */
- }
- #endif
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHandShakeHeader(input, finishedSz, finished, ssl);
-
- /* make finished hashes */
- hashes = (Hashes*)&input[headerSz];
- ret = BuildFinished(ssl, hashes,
- ssl->options.side == CYASSL_CLIENT_END ? client : server);
- if (ret != 0) return ret;
-
- sendSz = BuildMessage(ssl, output, input, headerSz + finishedSz, handshake);
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- ssl->keys.dtls_epoch = epoch;
- ssl->keys.dtls_sequence_number = sequence_number;
- }
- #endif
-
- if (sendSz < 0)
- return BUILD_MSG_ERROR;
-
- if (!ssl->options.resuming) {
-#ifndef NO_SESSION_CACHE
- AddSession(ssl); /* just try */
-#endif
- if (ssl->options.side == CYASSL_CLIENT_END) {
- ret = BuildFinished(ssl, &ssl->verifyHashes, server);
- if (ret != 0) return ret;
- }
- else {
- ssl->options.handShakeState = HANDSHAKE_DONE;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- /* Other side will soon receive our Finished, go to next
- * epoch. */
- ssl->keys.dtls_epoch++;
- ssl->keys.dtls_sequence_number = 1;
- }
- #endif
- }
- }
- else {
- if (ssl->options.side == CYASSL_CLIENT_END) {
- ssl->options.handShakeState = HANDSHAKE_DONE;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- /* Other side will soon receive our Finished, go to next
- * epoch. */
- ssl->keys.dtls_epoch++;
- ssl->keys.dtls_sequence_number = 1;
- }
- #endif
- }
- else {
- ret = BuildFinished(ssl, &ssl->verifyHashes, client);
- if (ret != 0) return ret;
- }
- }
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("Finished", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("Finished", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- return SendBuffered(ssl);
-}
-
-#ifndef NO_CERTS
-int SendCertificate(CYASSL* ssl)
-{
- int sendSz, length, ret = 0;
- word32 i = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- word32 certSz, listSz;
- byte* output = 0;
-
- if (ssl->options.usingPSK_cipher) return 0; /* not needed */
-
- if (ssl->options.sendVerify == SEND_BLANK_CERT) {
- certSz = 0;
- length = CERT_HEADER_SZ;
- listSz = 0;
- }
- else {
- certSz = ssl->buffers.certificate.length;
- /* list + cert size */
- length = certSz + 2 * CERT_HEADER_SZ;
- listSz = certSz + CERT_HEADER_SZ;
-
- /* may need to send rest of chain, already has leading size(s) */
- if (ssl->buffers.certChain.buffer) {
- length += ssl->buffers.certChain.length;
- listSz += ssl->buffers.certChain.length;
- }
- }
- sendSz = length + RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- }
- #endif
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, length, certificate, ssl);
-
- /* list total */
- c32to24(listSz, output + i);
- i += CERT_HEADER_SZ;
-
- /* member */
- if (certSz) {
- c32to24(certSz, output + i);
- i += CERT_HEADER_SZ;
- XMEMCPY(output + i, ssl->buffers.certificate.buffer, certSz);
- i += certSz;
-
- /* send rest of chain? */
- if (ssl->buffers.certChain.buffer) {
- XMEMCPY(output + i, ssl->buffers.certChain.buffer,
- ssl->buffers.certChain.length);
- /* if add more to output adjust i
- i += ssl->buffers.certChain.length; */
- }
- }
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("Certificate", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("Certificate", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
- #endif
-
- if (ssl->options.side == CYASSL_SERVER_END)
- ssl->options.serverState = SERVER_CERT_COMPLETE;
-
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- return 0;
- else
- return SendBuffered(ssl);
-}
-
-
-int SendCertificateRequest(CYASSL* ssl)
-{
- byte *output;
- int ret;
- int sendSz;
- word32 i = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
-
- int typeTotal = 1; /* only rsa for now */
- int reqSz = ENUM_LEN + typeTotal + REQ_HEADER_SZ; /* add auth later */
-
- if (IsAtLeastTLSv1_2(ssl))
- reqSz += LENGTH_SZ + ssl->suites->hashSigAlgoSz;
-
- if (ssl->options.usingPSK_cipher) return 0; /* not needed */
-
- sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + reqSz;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- }
- #endif
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, reqSz, certificate_request, ssl);
-
- /* write to output */
- output[i++] = (byte)typeTotal; /* # of types */
- output[i++] = rsa_sign;
-
- /* supported hash/sig */
- if (IsAtLeastTLSv1_2(ssl)) {
- c16toa(ssl->suites->hashSigAlgoSz, &output[i]);
- i += LENGTH_SZ;
-
- XMEMCPY(&output[i],
- ssl->suites->hashSigAlgo, ssl->suites->hashSigAlgoSz);
- i += ssl->suites->hashSigAlgoSz;
- }
-
- c16toa(0, &output[i]); /* auth's */
- /* if add more to output, adjust i
- i += REQ_HEADER_SZ; */
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("CertificateRequest", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("CertificateRequest", &ssl->timeoutInfo, output,
- sendSz, ssl->heap);
- #endif
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- return 0;
- else
- return SendBuffered(ssl);
-}
-#endif /* !NO_CERTS */
-
-
-int SendData(CYASSL* ssl, const void* data, int sz)
-{
- int sent = 0, /* plainText size */
- sendSz,
- ret;
-
- if (ssl->error == WANT_WRITE)
- ssl->error = 0;
-
- if (ssl->options.handShakeState != HANDSHAKE_DONE) {
- int err;
- CYASSL_MSG("handshake not complete, trying to finish");
- if ( (err = CyaSSL_negotiate(ssl)) != SSL_SUCCESS)
- return err;
- }
-
- /* last time system socket output buffer was full, try again to send */
- if (ssl->buffers.outputBuffer.length > 0) {
- CYASSL_MSG("output buffer was full, trying to send again");
- if ( (ssl->error = SendBuffered(ssl)) < 0) {
- CYASSL_ERROR(ssl->error);
- if (ssl->error == SOCKET_ERROR_E && ssl->options.connReset)
- return 0; /* peer reset */
- return ssl->error;
- }
- else {
- /* advance sent to previous sent + plain size just sent */
- sent = ssl->buffers.prevSent + ssl->buffers.plainSz;
- CYASSL_MSG("sent write buffered data");
- }
- }
-
- for (;;) {
-#ifdef HAVE_MAX_FRAGMENT
- int len = min(sz - sent, min(ssl->max_fragment, OUTPUT_RECORD_SIZE));
-#else
- int len = min(sz - sent, OUTPUT_RECORD_SIZE);
-#endif
- byte* out;
- byte* sendBuffer = (byte*)data + sent; /* may switch on comp */
- int buffSz = len; /* may switch on comp */
-#ifdef HAVE_LIBZ
- byte comp[MAX_RECORD_SIZE + MAX_COMP_EXTRA];
-#endif
-
- if (sent == sz) break;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- len = min(len, MAX_UDP_SIZE);
- buffSz = len;
- }
-#endif
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, len + COMP_EXTRA +
- MAX_MSG_EXTRA)) != 0)
- return ssl->error = ret;
-
- /* get ouput buffer */
- out = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
-#ifdef HAVE_LIBZ
- if (ssl->options.usingCompression) {
- buffSz = myCompress(ssl, sendBuffer, buffSz, comp, sizeof(comp));
- if (buffSz < 0) {
- return buffSz;
- }
- sendBuffer = comp;
- }
-#endif
- sendSz = BuildMessage(ssl, out, sendBuffer, buffSz,
- application_data);
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- if ( (ret = SendBuffered(ssl)) < 0) {
- CYASSL_ERROR(ret);
- /* store for next call if WANT_WRITE or user embedSend() that
- doesn't present like WANT_WRITE */
- ssl->buffers.plainSz = len;
- ssl->buffers.prevSent = sent;
- if (ret == SOCKET_ERROR_E && ssl->options.connReset)
- return 0; /* peer reset */
- return ssl->error = ret;
- }
-
- sent += len;
-
- /* only one message per attempt */
- if (ssl->options.partialWrite == 1) {
- CYASSL_MSG("Paritial Write on, only sending one record");
- break;
- }
- }
-
- return sent;
-}
-
-/* process input data */
-int ReceiveData(CYASSL* ssl, byte* output, int sz, int peek)
-{
- int size;
-
- CYASSL_ENTER("ReceiveData()");
-
- if (ssl->error == WANT_READ)
- ssl->error = 0;
-
- if (ssl->error != 0 && ssl->error != WANT_WRITE) {
- CYASSL_MSG("User calling CyaSSL_read in error state, not allowed");
- return ssl->error;
- }
-
- if (ssl->options.handShakeState != HANDSHAKE_DONE) {
- int err;
- CYASSL_MSG("Handshake not complete, trying to finish");
- if ( (err = CyaSSL_negotiate(ssl)) != SSL_SUCCESS)
- return err;
- }
-
- while (ssl->buffers.clearOutputBuffer.length == 0)
- if ( (ssl->error = ProcessReply(ssl)) < 0) {
- CYASSL_ERROR(ssl->error);
- if (ssl->error == ZERO_RETURN) {
- CYASSL_MSG("Zero return, no more data coming");
- return 0; /* no more data coming */
- }
- if (ssl->error == SOCKET_ERROR_E) {
- if (ssl->options.connReset || ssl->options.isClosed) {
- CYASSL_MSG("Peer reset or closed, connection done");
- return 0; /* peer reset or closed */
- }
- }
- return ssl->error;
- }
-
- if (sz < (int)ssl->buffers.clearOutputBuffer.length)
- size = sz;
- else
- size = ssl->buffers.clearOutputBuffer.length;
-
- XMEMCPY(output, ssl->buffers.clearOutputBuffer.buffer, size);
-
- if (peek == 0) {
- ssl->buffers.clearOutputBuffer.length -= size;
- ssl->buffers.clearOutputBuffer.buffer += size;
- }
-
- if (ssl->buffers.clearOutputBuffer.length == 0 &&
- ssl->buffers.inputBuffer.dynamicFlag)
- ShrinkInputBuffer(ssl, NO_FORCED_FREE);
-
- CYASSL_LEAVE("ReceiveData()", size);
- return size;
-}
-
-
-/* send alert message */
-int SendAlert(CYASSL* ssl, int severity, int type)
-{
- byte input[ALERT_SIZE];
- byte *output;
- int sendSz;
- int ret;
- int dtlsExtra = 0;
-
- /* if sendalert is called again for nonbloking */
- if (ssl->options.sendAlertState != 0) {
- ret = SendBuffered(ssl);
- if (ret == 0)
- ssl->options.sendAlertState = 0;
- return ret;
- }
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- dtlsExtra = DTLS_RECORD_EXTRA;
- #endif
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl,
- ALERT_SIZE + MAX_MSG_EXTRA + dtlsExtra)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- input[0] = (byte)severity;
- input[1] = (byte)type;
- ssl->alert_history.last_tx.code = type;
- ssl->alert_history.last_tx.level = severity;
- if (severity == alert_fatal) {
- ssl->options.isClosed = 1; /* Don't send close_notify */
- }
-
- /* only send encrypted alert if handshake actually complete, otherwise
- other side may not be able to handle it */
- if (ssl->keys.encryptionOn && ssl->options.handShakeState == HANDSHAKE_DONE)
- sendSz = BuildMessage(ssl, output, input, ALERT_SIZE, alert);
- else {
-
- AddRecordHeader(output, ALERT_SIZE, alert, ssl);
- output += RECORD_HEADER_SZ;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- output += DTLS_RECORD_EXTRA;
- #endif
- XMEMCPY(output, input, ALERT_SIZE);
-
- sendSz = RECORD_HEADER_SZ + ALERT_SIZE;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- sendSz += DTLS_RECORD_EXTRA;
- #endif
- }
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("Alert", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("Alert", &ssl->timeoutInfo, output, sendSz,ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
- ssl->options.sendAlertState = 1;
-
- return SendBuffered(ssl);
-}
-
-
-
-void SetErrorString(int error, char* str)
-{
- const int max = CYASSL_MAX_ERROR_SZ; /* shorthand */
-
-#ifdef NO_ERROR_STRINGS
-
- (void)error;
- XSTRNCPY(str, "no support for error strings built in", max);
-
-#else
-
- /* pass to CTaoCrypt */
- if (error < MAX_CODE_E && error > MIN_CODE_E) {
- CTaoCryptErrorString(error, str);
- return;
- }
-
- switch (error) {
-
- case UNSUPPORTED_SUITE :
- XSTRNCPY(str, "unsupported cipher suite", max);
- break;
-
- case INPUT_CASE_ERROR :
- XSTRNCPY(str, "input state error", max);
- break;
-
- case PREFIX_ERROR :
- XSTRNCPY(str, "bad index to key rounds", max);
- break;
-
- case MEMORY_ERROR :
- XSTRNCPY(str, "out of memory", max);
- break;
-
- case VERIFY_FINISHED_ERROR :
- XSTRNCPY(str, "verify problem on finished", max);
- break;
-
- case VERIFY_MAC_ERROR :
- XSTRNCPY(str, "verify mac problem", max);
- break;
-
- case PARSE_ERROR :
- XSTRNCPY(str, "parse error on header", max);
- break;
-
- case SIDE_ERROR :
- XSTRNCPY(str, "wrong client/server type", max);
- break;
-
- case NO_PEER_CERT :
- XSTRNCPY(str, "peer didn't send cert", max);
- break;
-
- case UNKNOWN_HANDSHAKE_TYPE :
- XSTRNCPY(str, "weird handshake type", max);
- break;
-
- case SOCKET_ERROR_E :
- XSTRNCPY(str, "error state on socket", max);
- break;
-
- case SOCKET_NODATA :
- XSTRNCPY(str, "expected data, not there", max);
- break;
-
- case INCOMPLETE_DATA :
- XSTRNCPY(str, "don't have enough data to complete task", max);
- break;
-
- case UNKNOWN_RECORD_TYPE :
- XSTRNCPY(str, "unknown type in record hdr", max);
- break;
-
- case DECRYPT_ERROR :
- XSTRNCPY(str, "error during decryption", max);
- break;
-
- case FATAL_ERROR :
- XSTRNCPY(str, "revcd alert fatal error", max);
- break;
-
- case ENCRYPT_ERROR :
- XSTRNCPY(str, "error during encryption", max);
- break;
-
- case FREAD_ERROR :
- XSTRNCPY(str, "fread problem", max);
- break;
-
- case NO_PEER_KEY :
- XSTRNCPY(str, "need peer's key", max);
- break;
-
- case NO_PRIVATE_KEY :
- XSTRNCPY(str, "need the private key", max);
- break;
-
- case NO_DH_PARAMS :
- XSTRNCPY(str, "server missing DH params", max);
- break;
-
- case RSA_PRIVATE_ERROR :
- XSTRNCPY(str, "error during rsa priv op", max);
- break;
-
- case MATCH_SUITE_ERROR :
- XSTRNCPY(str, "can't match cipher suite", max);
- break;
-
- case BUILD_MSG_ERROR :
- XSTRNCPY(str, "build message failure", max);
- break;
-
- case BAD_HELLO :
- XSTRNCPY(str, "client hello malformed", max);
- break;
-
- case DOMAIN_NAME_MISMATCH :
- XSTRNCPY(str, "peer subject name mismatch", max);
- break;
-
- case WANT_READ :
- case SSL_ERROR_WANT_READ :
- XSTRNCPY(str, "non-blocking socket wants data to be read", max);
- break;
-
- case NOT_READY_ERROR :
- XSTRNCPY(str, "handshake layer not ready yet, complete first", max);
- break;
-
- case PMS_VERSION_ERROR :
- XSTRNCPY(str, "premaster secret version mismatch error", max);
- break;
-
- case VERSION_ERROR :
- XSTRNCPY(str, "record layer version error", max);
- break;
-
- case WANT_WRITE :
- case SSL_ERROR_WANT_WRITE :
- XSTRNCPY(str, "non-blocking socket write buffer full", max);
- break;
-
- case BUFFER_ERROR :
- XSTRNCPY(str, "malformed buffer input error", max);
- break;
-
- case VERIFY_CERT_ERROR :
- XSTRNCPY(str, "verify problem on certificate", max);
- break;
-
- case VERIFY_SIGN_ERROR :
- XSTRNCPY(str, "verify problem based on signature", max);
- break;
-
- case CLIENT_ID_ERROR :
- XSTRNCPY(str, "psk client identity error", max);
- break;
-
- case SERVER_HINT_ERROR:
- XSTRNCPY(str, "psk server hint error", max);
- break;
-
- case PSK_KEY_ERROR:
- XSTRNCPY(str, "psk key callback error", max);
- break;
-
- case NTRU_KEY_ERROR:
- XSTRNCPY(str, "NTRU key error", max);
- break;
-
- case NTRU_DRBG_ERROR:
- XSTRNCPY(str, "NTRU drbg error", max);
- break;
-
- case NTRU_ENCRYPT_ERROR:
- XSTRNCPY(str, "NTRU encrypt error", max);
- break;
-
- case NTRU_DECRYPT_ERROR:
- XSTRNCPY(str, "NTRU decrypt error", max);
- break;
-
- case ZLIB_INIT_ERROR:
- XSTRNCPY(str, "zlib init error", max);
- break;
-
- case ZLIB_COMPRESS_ERROR:
- XSTRNCPY(str, "zlib compress error", max);
- break;
-
- case ZLIB_DECOMPRESS_ERROR:
- XSTRNCPY(str, "zlib decompress error", max);
- break;
-
- case GETTIME_ERROR:
- XSTRNCPY(str, "gettimeofday() error", max);
- break;
-
- case GETITIMER_ERROR:
- XSTRNCPY(str, "getitimer() error", max);
- break;
-
- case SIGACT_ERROR:
- XSTRNCPY(str, "sigaction() error", max);
- break;
-
- case SETITIMER_ERROR:
- XSTRNCPY(str, "setitimer() error", max);
- break;
-
- case LENGTH_ERROR:
- XSTRNCPY(str, "record layer length error", max);
- break;
-
- case PEER_KEY_ERROR:
- XSTRNCPY(str, "cant decode peer key", max);
- break;
-
- case ZERO_RETURN:
- case SSL_ERROR_ZERO_RETURN:
- XSTRNCPY(str, "peer sent close notify alert", max);
- break;
-
- case ECC_CURVETYPE_ERROR:
- XSTRNCPY(str, "Bad ECC Curve Type or unsupported", max);
- break;
-
- case ECC_CURVE_ERROR:
- XSTRNCPY(str, "Bad ECC Curve or unsupported", max);
- break;
-
- case ECC_PEERKEY_ERROR:
- XSTRNCPY(str, "Bad ECC Peer Key", max);
- break;
-
- case ECC_MAKEKEY_ERROR:
- XSTRNCPY(str, "ECC Make Key failure", max);
- break;
-
- case ECC_EXPORT_ERROR:
- XSTRNCPY(str, "ECC Export Key failure", max);
- break;
-
- case ECC_SHARED_ERROR:
- XSTRNCPY(str, "ECC DHE shared failure", max);
- break;
-
- case NOT_CA_ERROR:
- XSTRNCPY(str, "Not a CA by basic constraint error", max);
- break;
-
- case BAD_PATH_ERROR:
- XSTRNCPY(str, "Bad path for opendir error", max);
- break;
-
- case BAD_CERT_MANAGER_ERROR:
- XSTRNCPY(str, "Bad Cert Manager error", max);
- break;
-
- case OCSP_CERT_REVOKED:
- XSTRNCPY(str, "OCSP Cert revoked", max);
- break;
-
- case CRL_CERT_REVOKED:
- XSTRNCPY(str, "CRL Cert revoked", max);
- break;
-
- case CRL_MISSING:
- XSTRNCPY(str, "CRL missing, not loaded", max);
- break;
-
- case MONITOR_RUNNING_E:
- XSTRNCPY(str, "CRL monitor already running", max);
- break;
-
- case THREAD_CREATE_E:
- XSTRNCPY(str, "Thread creation problem", max);
- break;
-
- case OCSP_NEED_URL:
- XSTRNCPY(str, "OCSP need URL", max);
- break;
-
- case OCSP_CERT_UNKNOWN:
- XSTRNCPY(str, "OCSP Cert unknown", max);
- break;
-
- case OCSP_LOOKUP_FAIL:
- XSTRNCPY(str, "OCSP Responder lookup fail", max);
- break;
-
- case MAX_CHAIN_ERROR:
- XSTRNCPY(str, "Maximum Chain Depth Exceeded", max);
- break;
-
- case COOKIE_ERROR:
- XSTRNCPY(str, "DTLS Cookie Error", max);
- break;
-
- case SEQUENCE_ERROR:
- XSTRNCPY(str, "DTLS Sequence Error", max);
- break;
-
- case SUITES_ERROR:
- XSTRNCPY(str, "Suites Pointer Error", max);
- break;
-
- case SSL_NO_PEM_HEADER:
- XSTRNCPY(str, "No PEM Header Error", max);
- break;
-
- case OUT_OF_ORDER_E:
- XSTRNCPY(str, "Out of order message, fatal", max);
- break;
-
- case BAD_KEA_TYPE_E:
- XSTRNCPY(str, "Bad KEA type found", max);
- break;
-
- case SANITY_CIPHER_E:
- XSTRNCPY(str, "Sanity check on ciphertext failed", max);
- break;
-
- case RECV_OVERFLOW_E:
- XSTRNCPY(str, "Receive callback returned more than requested", max);
- break;
-
- case GEN_COOKIE_E:
- XSTRNCPY(str, "Generate Cookie Error", max);
- break;
-
- case NO_PEER_VERIFY:
- XSTRNCPY(str, "Need peer certificate verify Error", max);
- break;
-
- case FWRITE_ERROR:
- XSTRNCPY(str, "fwrite Error", max);
- break;
-
- case CACHE_MATCH_ERROR:
- XSTRNCPY(str, "Cache restore header match Error", max);
- break;
-
- case UNKNOWN_SNI_HOST_NAME_E:
- XSTRNCPY(str, "Unrecognized host name Error", max);
- break;
-
- case KEYUSE_SIGNATURE_E:
- XSTRNCPY(str, "Key Use digitalSignature not set Error", max);
- break;
-
- case KEYUSE_ENCIPHER_E:
- XSTRNCPY(str, "Key Use keyEncipherment not set Error", max);
- break;
-
- case EXTKEYUSE_AUTH_E:
- XSTRNCPY(str, "Ext Key Use server/client auth not set Error", max);
- break;
-
- default :
- XSTRNCPY(str, "unknown error number", max);
- }
-
-#endif /* NO_ERROR_STRINGS */
-}
-
-
-
-/* be sure to add to cipher_name_idx too !!!! */
-static const char* const cipher_names[] =
-{
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
- "RC4-SHA",
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
- "RC4-MD5",
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
- "DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
- "AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
- "AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
- "NULL-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
- "NULL-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- "DHE-RSA-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- "DHE-RSA-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
- "PSK-AES128-CBC-SHA256",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
- "PSK-AES128-CBC-SHA",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
- "PSK-AES256-CBC-SHA",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
- "PSK-AES128-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
- "PSK-AES256-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
- "PSK-NULL-SHA256",
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
- "PSK-NULL-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
- "HC128-MD5",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
- "HC128-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
- "HC128-B2B256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
- "AES128-B2B256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
- "AES256-B2B256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
- "RABBIT-SHA",
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
- "NTRU-RC4-SHA",
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
- "NTRU-DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
- "NTRU-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
- "NTRU-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
- "AES128-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
- "AES256-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
- "ECDHE-ECDSA-AES128-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
- "ECDHE-ECDSA-AES256-CCM-8",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- "ECDHE-RSA-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- "ECDHE-RSA-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- "ECDHE-ECDSA-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- "ECDHE-ECDSA-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- "ECDHE-RSA-RC4-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- "ECDHE-RSA-DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- "ECDHE-ECDSA-RC4-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- "ECDHE-ECDSA-DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
- "AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
- "AES256-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- "DHE-RSA-AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- "DHE-RSA-AES256-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- "ECDH-RSA-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- "ECDH-RSA-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- "ECDH-ECDSA-AES128-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- "ECDH-ECDSA-AES256-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
- "ECDH-RSA-RC4-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- "ECDH-RSA-DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- "ECDH-ECDSA-RC4-SHA",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- "ECDH-ECDSA-DES-CBC3-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
- "AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
- "AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- "DHE-RSA-AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- "DHE-RSA-AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- "ECDHE-RSA-AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- "ECDHE-RSA-AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- "ECDHE-ECDSA-AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- "ECDHE-ECDSA-AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- "ECDH-RSA-AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- "ECDH-RSA-AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- "ECDH-ECDSA-AES128-GCM-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- "ECDH-ECDSA-AES256-GCM-SHA384",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- "CAMELLIA128-SHA",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- "DHE-RSA-CAMELLIA128-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- "CAMELLIA256-SHA",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- "DHE-RSA-CAMELLIA256-SHA",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- "CAMELLIA128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- "DHE-RSA-CAMELLIA128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- "CAMELLIA256-SHA256",
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- "DHE-RSA-CAMELLIA256-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- "ECDHE-RSA-AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- "ECDHE-ECDSA-AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- "ECDH-RSA-AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- "ECDH-ECDSA-AES128-SHA256",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- "ECDHE-RSA-AES256-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- "ECDHE-ECDSA-AES256-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- "ECDH-RSA-AES256-SHA384",
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- "ECDH-ECDSA-AES256-SHA384",
-#endif
-
-};
-
-
-
-/* cipher suite number that matches above name table */
-static int cipher_name_idx[] =
-{
-
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
- SSL_RSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
- SSL_RSA_WITH_RC4_128_MD5,
-#endif
-
-#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
- SSL_RSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
- TLS_RSA_WITH_NULL_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
- TLS_RSA_WITH_NULL_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
- TLS_PSK_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
- TLS_PSK_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
- TLS_PSK_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
- TLS_PSK_WITH_AES_128_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
- TLS_PSK_WITH_AES_256_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
- TLS_PSK_WITH_NULL_SHA256,
-#endif
-
-#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
- TLS_PSK_WITH_NULL_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
- TLS_RSA_WITH_HC_128_MD5,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
- TLS_RSA_WITH_HC_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
- TLS_RSA_WITH_HC_128_B2B256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
- TLS_RSA_WITH_AES_128_CBC_B2B256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
- TLS_RSA_WITH_AES_256_CBC_B2B256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
- TLS_RSA_WITH_RABBIT_SHA,
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
- TLS_NTRU_RSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
- TLS_NTRU_RSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
- TLS_NTRU_RSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
- TLS_RSA_WITH_AES_128_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
- TLS_RSA_WITH_AES_256_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
- TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
- TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
- TLS_ECDH_RSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_RSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
-#endif
-
-#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
-#endif
-};
-
-
-/* return true if set, else false */
-/* only supports full name from cipher_name[] delimited by : */
-int SetCipherList(Suites* s, const char* list)
-{
- int ret = 0, i;
- char name[MAX_SUITE_NAME];
-
- char needle[] = ":";
- char* haystack = (char*)list;
- char* prev;
-
- const int suiteSz = sizeof(cipher_names) / sizeof(cipher_names[0]);
- int idx = 0;
- int haveRSA = 0, haveECDSA = 0;
-
- if (s == NULL) {
- CYASSL_MSG("SetCipherList suite pointer error");
- return 0;
- }
-
- if (!list)
- return 0;
-
- if (*list == 0) return 1; /* CyaSSL default */
-
- if (XSTRNCMP(haystack, "ALL", 3) == 0) return 1; /* CyaSSL defualt */
-
- for(;;) {
- word32 len;
- prev = haystack;
- haystack = XSTRSTR(haystack, needle);
-
- if (!haystack) /* last cipher */
- len = min(sizeof(name), (word32)XSTRLEN(prev));
- else
- len = min(sizeof(name), (word32)(haystack - prev));
-
- XSTRNCPY(name, prev, len);
- name[(len == sizeof(name)) ? len - 1 : len] = 0;
-
- for (i = 0; i < suiteSz; i++)
- if (XSTRNCMP(name, cipher_names[i], sizeof(name)) == 0) {
- if (XSTRSTR(name, "EC") || XSTRSTR(name, "CCM"))
- s->suites[idx++] = ECC_BYTE; /* ECC suite */
- else
- s->suites[idx++] = 0x00; /* normal */
- s->suites[idx++] = (byte)cipher_name_idx[i];
-
- /* The suites are either ECDSA, RSA, or PSK. The RSA suites
- * don't necessarily have RSA in the name. */
- if ((haveECDSA == 0) && XSTRSTR(name, "ECDSA")) {
- haveECDSA = 1;
- }
- else if ((haveRSA == 0) && (XSTRSTR(name, "PSK") == NULL)) {
- haveRSA = 1;
- }
-
- if (!ret) ret = 1; /* found at least one */
- break;
- }
- if (!haystack) break;
- haystack++;
- }
-
- if (ret) {
- s->setSuites = 1;
- s->suiteSz = (word16)idx;
-
- idx = 0;
-
- if (haveECDSA) {
- #ifdef CYASSL_SHA384
- s->hashSigAlgo[idx++] = sha384_mac;
- s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- #endif
- #ifndef NO_SHA256
- s->hashSigAlgo[idx++] = sha256_mac;
- s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- #endif
- s->hashSigAlgo[idx++] = sha_mac;
- s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
- }
-
- if (haveRSA) {
- #ifdef CYASSL_SHA384
- s->hashSigAlgo[idx++] = sha384_mac;
- s->hashSigAlgo[idx++] = rsa_sa_algo;
- #endif
- #ifndef NO_SHA256
- s->hashSigAlgo[idx++] = sha256_mac;
- s->hashSigAlgo[idx++] = rsa_sa_algo;
- #endif
- s->hashSigAlgo[idx++] = sha_mac;
- s->hashSigAlgo[idx++] = rsa_sa_algo;
- }
-
- s->hashSigAlgoSz = (word16)idx;
- }
-
- return ret;
-}
-
-
-static void PickHashSigAlgo(CYASSL* ssl,
- const byte* hashSigAlgo, word32 hashSigAlgoSz)
-{
- word32 i;
-
- ssl->suites->sigAlgo = ssl->specs.sig_algo;
- ssl->suites->hashAlgo = sha_mac;
-
- for (i = 0; i < hashSigAlgoSz; i += 2) {
- if (hashSigAlgo[i+1] == ssl->specs.sig_algo) {
- if (hashSigAlgo[i] == sha_mac) {
- break;
- }
- #ifndef NO_SHA256
- else if (hashSigAlgo[i] == sha256_mac) {
- ssl->suites->hashAlgo = sha256_mac;
- break;
- }
- #endif
- #ifdef CYASSL_SHA384
- else if (hashSigAlgo[i] == sha384_mac) {
- ssl->suites->hashAlgo = sha384_mac;
- break;
- }
- #endif
- }
- }
-}
-
-
-#ifdef CYASSL_CALLBACKS
-
- /* Initialisze HandShakeInfo */
- void InitHandShakeInfo(HandShakeInfo* info)
- {
- int i;
-
- info->cipherName[0] = 0;
- for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++)
- info->packetNames[i][0] = 0;
- info->numberPackets = 0;
- info->negotiationError = 0;
- }
-
- /* Set Final HandShakeInfo parameters */
- void FinishHandShakeInfo(HandShakeInfo* info, const CYASSL* ssl)
- {
- int i;
- int sz = sizeof(cipher_name_idx)/sizeof(int);
-
- for (i = 0; i < sz; i++)
- if (ssl->options.cipherSuite == (byte)cipher_name_idx[i]) {
- if (ssl->options.cipherSuite0 == ECC_BYTE)
- continue; /* ECC suites at end */
- XSTRNCPY(info->cipherName, cipher_names[i], MAX_CIPHERNAME_SZ);
- break;
- }
-
- /* error max and min are negative numbers */
- if (ssl->error <= MIN_PARAM_ERR && ssl->error >= MAX_PARAM_ERR)
- info->negotiationError = ssl->error;
- }
-
-
- /* Add name to info packet names, increase packet name count */
- void AddPacketName(const char* name, HandShakeInfo* info)
- {
- if (info->numberPackets < MAX_PACKETS_HANDSHAKE) {
- XSTRNCPY(info->packetNames[info->numberPackets++], name,
- MAX_PACKETNAME_SZ);
- }
- }
-
-
- /* Initialisze TimeoutInfo */
- void InitTimeoutInfo(TimeoutInfo* info)
- {
- int i;
-
- info->timeoutName[0] = 0;
- info->flags = 0;
-
- for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++) {
- info->packets[i].packetName[0] = 0;
- info->packets[i].timestamp.tv_sec = 0;
- info->packets[i].timestamp.tv_usec = 0;
- info->packets[i].bufferValue = 0;
- info->packets[i].valueSz = 0;
- }
- info->numberPackets = 0;
- info->timeoutValue.tv_sec = 0;
- info->timeoutValue.tv_usec = 0;
- }
-
-
- /* Free TimeoutInfo */
- void FreeTimeoutInfo(TimeoutInfo* info, void* heap)
- {
- int i;
- (void)heap;
- for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++)
- if (info->packets[i].bufferValue) {
- XFREE(info->packets[i].bufferValue, heap, DYNAMIC_TYPE_INFO);
- info->packets[i].bufferValue = 0;
- }
-
- }
-
-
- /* Add PacketInfo to TimeoutInfo */
- void AddPacketInfo(const char* name, TimeoutInfo* info, const byte* data,
- int sz, void* heap)
- {
- if (info->numberPackets < (MAX_PACKETS_HANDSHAKE - 1)) {
- Timeval currTime;
-
- /* may add name after */
- if (name)
- XSTRNCPY(info->packets[info->numberPackets].packetName, name,
- MAX_PACKETNAME_SZ);
-
- /* add data, put in buffer if bigger than static buffer */
- info->packets[info->numberPackets].valueSz = sz;
- if (sz < MAX_VALUE_SZ)
- XMEMCPY(info->packets[info->numberPackets].value, data, sz);
- else {
- info->packets[info->numberPackets].bufferValue =
- XMALLOC(sz, heap, DYNAMIC_TYPE_INFO);
- if (!info->packets[info->numberPackets].bufferValue)
- /* let next alloc catch, just don't fill, not fatal here */
- info->packets[info->numberPackets].valueSz = 0;
- else
- XMEMCPY(info->packets[info->numberPackets].bufferValue,
- data, sz);
- }
- gettimeofday(&currTime, 0);
- info->packets[info->numberPackets].timestamp.tv_sec =
- currTime.tv_sec;
- info->packets[info->numberPackets].timestamp.tv_usec =
- currTime.tv_usec;
- info->numberPackets++;
- }
- }
-
-
- /* Add packet name to previsouly added packet info */
- void AddLateName(const char* name, TimeoutInfo* info)
- {
- /* make sure we have a valid previous one */
- if (info->numberPackets > 0 && info->numberPackets <
- MAX_PACKETS_HANDSHAKE) {
- XSTRNCPY(info->packets[info->numberPackets - 1].packetName, name,
- MAX_PACKETNAME_SZ);
- }
- }
-
- /* Add record header to previsouly added packet info */
- void AddLateRecordHeader(const RecordLayerHeader* rl, TimeoutInfo* info)
- {
- /* make sure we have a valid previous one */
- if (info->numberPackets > 0 && info->numberPackets <
- MAX_PACKETS_HANDSHAKE) {
- if (info->packets[info->numberPackets - 1].bufferValue)
- XMEMCPY(info->packets[info->numberPackets - 1].bufferValue, rl,
- RECORD_HEADER_SZ);
- else
- XMEMCPY(info->packets[info->numberPackets - 1].value, rl,
- RECORD_HEADER_SZ);
- }
- }
-
-#endif /* CYASSL_CALLBACKS */
-
-
-
-/* client only parts */
-#ifndef NO_CYASSL_CLIENT
-
- int SendClientHello(CYASSL* ssl)
- {
- byte *output;
- word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int sendSz;
- int idSz = ssl->options.resuming ? ID_LEN : 0;
- int ret;
-
- if (ssl->suites == NULL) {
- CYASSL_MSG("Bad suites pointer in SendClientHello");
- return SUITES_ERROR;
- }
-
- length = VERSION_SZ + RAN_LEN
- + idSz + ENUM_LEN
- + ssl->suites->suiteSz + SUITE_LEN
- + COMP_LEN + ENUM_LEN;
-
-#ifdef HAVE_TLS_EXTENSIONS
- length += TLSX_GetRequestSize(ssl);
-#else
- if (IsAtLeastTLSv1_2(ssl) && ssl->suites->hashSigAlgoSz) {
- length += ssl->suites->hashSigAlgoSz + HELLO_EXT_SZ;
- }
-#endif
- sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- length += ENUM_LEN; /* cookie */
- if (ssl->arrays->cookieSz != 0) length += ssl->arrays->cookieSz;
- sendSz = length + DTLS_HANDSHAKE_HEADER_SZ + DTLS_RECORD_HEADER_SZ;
- idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
- }
-#endif
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, length, client_hello, ssl);
-
- /* client hello, first version */
- output[idx++] = ssl->version.major;
- output[idx++] = ssl->version.minor;
- ssl->chVersion = ssl->version; /* store in case changed */
-
- /* then random */
- if (ssl->options.connectState == CONNECT_BEGIN) {
- ret = RNG_GenerateBlock(ssl->rng, output + idx, RAN_LEN);
- if (ret != 0)
- return ret;
-
- /* store random */
- XMEMCPY(ssl->arrays->clientRandom, output + idx, RAN_LEN);
- } else {
-#ifdef CYASSL_DTLS
- /* send same random on hello again */
- XMEMCPY(output + idx, ssl->arrays->clientRandom, RAN_LEN);
-#endif
- }
- idx += RAN_LEN;
-
- /* then session id */
- output[idx++] = (byte)idSz;
- if (idSz) {
- XMEMCPY(output + idx, ssl->session.sessionID, ID_LEN);
- idx += ID_LEN;
- }
-
- /* then DTLS cookie */
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- byte cookieSz = ssl->arrays->cookieSz;
-
- output[idx++] = cookieSz;
- if (cookieSz) {
- XMEMCPY(&output[idx], ssl->arrays->cookie, cookieSz);
- idx += cookieSz;
- }
- }
-#endif
- /* then cipher suites */
- c16toa(ssl->suites->suiteSz, output + idx);
- idx += 2;
- XMEMCPY(output + idx, &ssl->suites->suites, ssl->suites->suiteSz);
- idx += ssl->suites->suiteSz;
-
- /* last, compression */
- output[idx++] = COMP_LEN;
- if (ssl->options.usingCompression)
- output[idx++] = ZLIB_COMPRESSION;
- else
- output[idx++] = NO_COMPRESSION;
-
-#ifdef HAVE_TLS_EXTENSIONS
- idx += TLSX_WriteRequest(ssl, output + idx);
-
- (void)idx; /* suppress analyzer warning, keep idx current */
-#else
- if (IsAtLeastTLSv1_2(ssl) && ssl->suites->hashSigAlgoSz)
- {
- int i;
- /* add in the extensions length */
- c16toa(HELLO_EXT_LEN + ssl->suites->hashSigAlgoSz, output + idx);
- idx += 2;
-
- c16toa(HELLO_EXT_SIG_ALGO, output + idx);
- idx += 2;
- c16toa(HELLO_EXT_SIGALGO_SZ+ssl->suites->hashSigAlgoSz, output+idx);
- idx += 2;
- c16toa(ssl->suites->hashSigAlgoSz, output + idx);
- idx += 2;
- for (i = 0; i < ssl->suites->hashSigAlgoSz; i++, idx++) {
- output[idx] = ssl->suites->hashSigAlgo[i];
- }
- }
-#endif
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- ssl->options.clientState = CLIENT_HELLO_COMPLETE;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("ClientHello", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ClientHello", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
-#endif
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- return SendBuffered(ssl);
- }
-
-
- static int DoHelloVerifyRequest(CYASSL* ssl, const byte* input,
- word32* inOutIdx, word32 size)
- {
- ProtocolVersion pv;
- byte cookieSz;
- word32 begin = *inOutIdx;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("HelloVerifyRequest",
- &ssl->handShakeInfo);
- if (ssl->toInfoOn) AddLateName("HelloVerifyRequest", &ssl->timeoutInfo);
-#endif
-
-#ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- DtlsPoolReset(ssl);
- }
-#endif
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN + OPAQUE8_LEN > size)
- return BUFFER_ERROR;
-
- XMEMCPY(&pv, input + *inOutIdx, OPAQUE16_LEN);
- *inOutIdx += OPAQUE16_LEN;
-
- cookieSz = input[(*inOutIdx)++];
-
- if (cookieSz) {
- if ((*inOutIdx - begin) + cookieSz > size)
- return BUFFER_ERROR;
-
-#ifdef CYASSL_DTLS
- if (cookieSz <= MAX_COOKIE_LEN) {
- XMEMCPY(ssl->arrays->cookie, input + *inOutIdx, cookieSz);
- ssl->arrays->cookieSz = cookieSz;
- }
-#endif
- *inOutIdx += cookieSz;
- }
-
- ssl->options.serverState = SERVER_HELLOVERIFYREQUEST_COMPLETE;
- return 0;
- }
-
-
- static int DoServerHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
- word32 helloSz)
- {
- byte b;
- ProtocolVersion pv;
- byte compression;
- word32 i = *inOutIdx;
- word32 begin = i;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("ServerHello", &ssl->handShakeInfo);
- if (ssl->toInfoOn) AddLateName("ServerHello", &ssl->timeoutInfo);
-#endif
-
- /* protocol version, random and session id length check */
- if ((i - begin) + OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz)
- return BUFFER_ERROR;
-
- /* protocol version */
- XMEMCPY(&pv, input + i, OPAQUE16_LEN);
- i += OPAQUE16_LEN;
-
- if (pv.minor > ssl->version.minor) {
- CYASSL_MSG("Server using higher version, fatal error");
- return VERSION_ERROR;
- }
- else if (pv.minor < ssl->version.minor) {
- CYASSL_MSG("server using lower version");
-
- if (!ssl->options.downgrade) {
- CYASSL_MSG(" no downgrade allowed, fatal error");
- return VERSION_ERROR;
- }
-
- if (pv.minor == SSLv3_MINOR) {
- /* turn off tls */
- CYASSL_MSG(" downgrading to SSLv3");
- ssl->options.tls = 0;
- ssl->options.tls1_1 = 0;
- ssl->version.minor = SSLv3_MINOR;
- }
- else if (pv.minor == TLSv1_MINOR) {
- /* turn off tls 1.1+ */
- CYASSL_MSG(" downgrading to TLSv1");
- ssl->options.tls1_1 = 0;
- ssl->version.minor = TLSv1_MINOR;
- }
- else if (pv.minor == TLSv1_1_MINOR) {
- CYASSL_MSG(" downgrading to TLSv1.1");
- ssl->version.minor = TLSv1_1_MINOR;
- }
- }
-
- /* random */
- XMEMCPY(ssl->arrays->serverRandom, input + i, RAN_LEN);
- i += RAN_LEN;
-
- /* session id */
- b = input[i++];
-
- if (b == ID_LEN) {
- if ((i - begin) + ID_LEN > helloSz)
- return BUFFER_ERROR;
-
- XMEMCPY(ssl->arrays->sessionID, input + i, min(b, ID_LEN));
- i += ID_LEN;
- ssl->options.haveSessionId = 1;
- }
- else if (b) {
- CYASSL_MSG("Invalid session ID size");
- return BUFFER_ERROR; /* session ID nor 0 neither 32 bytes long */
- }
-
- /* suite and compression */
- if ((i - begin) + OPAQUE16_LEN + OPAQUE8_LEN > helloSz)
- return BUFFER_ERROR;
-
- ssl->options.cipherSuite0 = input[i++];
- ssl->options.cipherSuite = input[i++];
- compression = input[i++];
-
- if (compression != ZLIB_COMPRESSION && ssl->options.usingCompression) {
- CYASSL_MSG("Server refused compression, turning off");
- ssl->options.usingCompression = 0; /* turn off if server refused */
- }
-
- *inOutIdx = i;
-
- /* tls extensions */
- if ( (i - begin) < helloSz) {
-#ifdef HAVE_TLS_EXTENSIONS
- if (IsTLS(ssl)) {
- int ret = 0;
- word16 totalExtSz;
- Suites clSuites; /* just for compatibility right now */
-
- if ((i - begin) + OPAQUE16_LEN > helloSz)
- return BUFFER_ERROR;
-
- ato16(&input[i], &totalExtSz);
- i += OPAQUE16_LEN;
-
- if ((i - begin) + totalExtSz > helloSz)
- return BUFFER_ERROR;
-
- if ((ret = TLSX_Parse(ssl, (byte *) input + i,
- totalExtSz, 0, &clSuites)))
- return ret;
-
- i += totalExtSz;
- *inOutIdx = i;
- }
- else
-#endif
- *inOutIdx = begin + helloSz; /* skip extensions */
- }
-
- ssl->options.serverState = SERVER_HELLO_COMPLETE;
-
- if (ssl->options.resuming) {
- if (ssl->options.haveSessionId && XMEMCMP(ssl->arrays->sessionID,
- ssl->session.sessionID, ID_LEN) == 0) {
- if (SetCipherSpecs(ssl) == 0) {
- int ret = -1;
-
- XMEMCPY(ssl->arrays->masterSecret,
- ssl->session.masterSecret, SECRET_LEN);
- #ifdef NO_OLD_TLS
- ret = DeriveTlsKeys(ssl);
- #else
- #ifndef NO_TLS
- if (ssl->options.tls)
- ret = DeriveTlsKeys(ssl);
- #endif
- if (!ssl->options.tls)
- ret = DeriveKeys(ssl);
- #endif
- ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
-
- return ret;
- }
- else {
- CYASSL_MSG("Unsupported cipher suite, DoServerHello");
- return UNSUPPORTED_SUITE;
- }
- }
- else {
- CYASSL_MSG("Server denied resumption attempt");
- ssl->options.resuming = 0; /* server denied resumption try */
- }
- }
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- DtlsPoolReset(ssl);
- }
- #endif
-
- return SetCipherSpecs(ssl);
- }
-
-
-#ifndef NO_CERTS
- /* just read in and ignore for now TODO: */
- static int DoCertificateRequest(CYASSL* ssl, const byte* input, word32*
- inOutIdx, word32 size)
- {
- word16 len;
- word32 begin = *inOutIdx;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("CertificateRequest", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("CertificateRequest", &ssl->timeoutInfo);
- #endif
-
- if ((*inOutIdx - begin) + OPAQUE8_LEN > size)
- return BUFFER_ERROR;
-
- len = input[(*inOutIdx)++];
-
- if ((*inOutIdx - begin) + len > size)
- return BUFFER_ERROR;
-
- /* types, read in here */
- *inOutIdx += len;
-
- /* signature and hash signature algorithm */
- if (IsAtLeastTLSv1_2(ssl)) {
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &len);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + len > size)
- return BUFFER_ERROR;
-
- PickHashSigAlgo(ssl, input + *inOutIdx, len);
- *inOutIdx += len;
- }
-
- /* authorities */
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &len);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + len > size)
- return BUFFER_ERROR;
-
- while (len) {
- word16 dnSz;
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &dnSz);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + dnSz > size)
- return BUFFER_ERROR;
-
- *inOutIdx += dnSz;
- len -= OPAQUE16_LEN + dnSz;
- }
-
- /* don't send client cert or cert verify if user hasn't provided
- cert and private key */
- if (ssl->buffers.certificate.buffer && ssl->buffers.key.buffer)
- ssl->options.sendVerify = SEND_CERT;
- else if (IsTLS(ssl))
- ssl->options.sendVerify = SEND_BLANK_CERT;
-
- return 0;
- }
-#endif /* !NO_CERTS */
-
-
- static int DoServerKeyExchange(CYASSL* ssl, const byte* input,
- word32* inOutIdx, word32 size)
- {
- word16 length = 0;
- word32 begin = *inOutIdx;
- int ret = 0;
-
- (void)length; /* shut up compiler warnings */
- (void)begin;
- (void)ssl;
- (void)input;
- (void)size;
- (void)ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("ServerKeyExchange", &ssl->timeoutInfo);
- #endif
-
- #ifndef NO_PSK
- if (ssl->specs.kea == psk_kea) {
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &length);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- XMEMCPY(ssl->arrays->server_hint, input + *inOutIdx,
- min(length, MAX_PSK_ID_LEN));
-
- ssl->arrays->server_hint[min(length, MAX_PSK_ID_LEN - 1)] = 0;
- *inOutIdx += length;
-
- return 0;
- }
- #endif
- #ifdef OPENSSL_EXTRA
- if (ssl->specs.kea == diffie_hellman_kea)
- {
- /* p */
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &length);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- ssl->buffers.serverDH_P.buffer = (byte*) XMALLOC(length, ssl->heap,
- DYNAMIC_TYPE_DH);
-
- if (ssl->buffers.serverDH_P.buffer)
- ssl->buffers.serverDH_P.length = length;
- else
- return MEMORY_ERROR;
-
- XMEMCPY(ssl->buffers.serverDH_P.buffer, input + *inOutIdx, length);
- *inOutIdx += length;
-
- /* g */
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &length);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- ssl->buffers.serverDH_G.buffer = (byte*) XMALLOC(length, ssl->heap,
- DYNAMIC_TYPE_DH);
-
- if (ssl->buffers.serverDH_G.buffer)
- ssl->buffers.serverDH_G.length = length;
- else
- return MEMORY_ERROR;
-
- XMEMCPY(ssl->buffers.serverDH_G.buffer, input + *inOutIdx, length);
- *inOutIdx += length;
-
- /* pub */
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &length);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- ssl->buffers.serverDH_Pub.buffer = (byte*) XMALLOC(length, ssl->heap,
- DYNAMIC_TYPE_DH);
-
- if (ssl->buffers.serverDH_Pub.buffer)
- ssl->buffers.serverDH_Pub.length = length;
- else
- return MEMORY_ERROR;
-
- XMEMCPY(ssl->buffers.serverDH_Pub.buffer, input + *inOutIdx, length);
- *inOutIdx += length;
- } /* dh_kea */
- #endif /* OPENSSL_EXTRA */
-
- #ifdef HAVE_ECC
- if (ssl->specs.kea == ecc_diffie_hellman_kea)
- {
- byte b;
-
- if ((*inOutIdx - begin) + ENUM_LEN + OPAQUE16_LEN + OPAQUE8_LEN > size)
- return BUFFER_ERROR;
-
- b = input[(*inOutIdx)++];
-
- if (b != named_curve)
- return ECC_CURVETYPE_ERROR;
-
- *inOutIdx += 1; /* curve type, eat leading 0 */
- b = input[(*inOutIdx)++];
-
- if (b != secp256r1 && b != secp384r1 && b != secp521r1 && b !=
- secp160r1 && b != secp192r1 && b != secp224r1)
- return ECC_CURVE_ERROR;
-
- length = input[(*inOutIdx)++];
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- if (ecc_import_x963(input + *inOutIdx, length, ssl->peerEccKey) != 0)
- return ECC_PEERKEY_ERROR;
-
- *inOutIdx += length;
- ssl->peerEccKeyPresent = 1;
- }
- #endif /* HAVE_ECC */
-
- #if defined(OPENSSL_EXTRA) || defined(HAVE_ECC)
- {
-#ifndef NO_OLD_TLS
- Md5 md5;
- Sha sha;
-#endif
-#ifndef NO_SHA256
- Sha256 sha256;
- byte hash256[SHA256_DIGEST_SIZE];
-#endif
-#ifdef CYASSL_SHA384
- Sha384 sha384;
- byte hash384[SHA384_DIGEST_SIZE];
-#endif
- byte hash[FINISHED_SZ];
- byte messageVerify[MAX_DH_SZ];
- byte hashAlgo = sha_mac;
- byte sigAlgo = ssl->specs.sig_algo;
- word16 verifySz = (word16) (*inOutIdx - begin);
-
- /* save message for hash verify */
- if (verifySz > sizeof(messageVerify))
- return BUFFER_ERROR;
-
- XMEMCPY(messageVerify, input + begin, verifySz);
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if ((*inOutIdx - begin) + ENUM_LEN + ENUM_LEN > size)
- return BUFFER_ERROR;
-
- hashAlgo = input[(*inOutIdx)++];
- sigAlgo = input[(*inOutIdx)++];
- }
-
- /* signature */
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &length);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- /* inOutIdx updated at the end of the function */
-
- /* verify signature */
-#ifndef NO_OLD_TLS
- /* md5 */
- InitMd5(&md5);
- Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
- Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
- Md5Update(&md5, messageVerify, verifySz);
- Md5Final(&md5, hash);
-
- /* sha */
- ret = InitSha(&sha);
- if (ret != 0)
- return ret;
- ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
- ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
- ShaUpdate(&sha, messageVerify, verifySz);
- ShaFinal(&sha, hash + MD5_DIGEST_SIZE);
-#endif
-
-#ifndef NO_SHA256
- ret = InitSha256(&sha256);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, messageVerify, verifySz);
- if (ret != 0)
- return ret;
- ret = Sha256Final(&sha256, hash256);
- if (ret != 0)
- return ret;
-#endif
-
-#ifdef CYASSL_SHA384
- ret = InitSha384(&sha384);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, messageVerify, verifySz);
- if (ret != 0)
- return ret;
- ret = Sha384Final(&sha384, hash384);
- if (ret != 0)
- return ret;
-#endif
-
-#ifndef NO_RSA
- /* rsa */
- if (sigAlgo == rsa_sa_algo)
- {
- byte* out = NULL;
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaVerifyCb)
- doUserRsa = 1;
- #endif /*HAVE_PK_CALLBACKS */
-
- if (!ssl->peerRsaKeyPresent)
- return NO_PEER_KEY;
-
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- ret = ssl->ctx->RsaVerifyCb(ssl, (byte *) input + *inOutIdx,
- length, &out,
- ssl->buffers.peerRsaKey.buffer,
- ssl->buffers.peerRsaKey.length,
- ssl->RsaVerifyCtx);
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = RsaSSL_VerifyInline((byte *) input + *inOutIdx, length,
- &out, ssl->peerRsaKey);
- }
-
- if (IsAtLeastTLSv1_2(ssl)) {
- byte encodedSig[MAX_ENCODED_SIG_SZ];
- word32 encSigSz;
-#ifndef NO_OLD_TLS
- byte* digest = &hash[MD5_DIGEST_SIZE];
- int typeH = SHAh;
- int digestSz = SHA_DIGEST_SIZE;
-#else
- byte* digest = hash256;
- int typeH = SHA256h;
- int digestSz = SHA256_DIGEST_SIZE;
-#endif
-
- if (hashAlgo == sha_mac) {
- #ifndef NO_SHA
- digest = &hash[MD5_DIGEST_SIZE];
- typeH = SHAh;
- digestSz = SHA_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = hash256;
- typeH = SHA256h;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = hash384;
- typeH = SHA384h;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
-
- encSigSz = EncodeSignature(encodedSig, digest, digestSz, typeH);
-
- if (encSigSz != (word32)ret || !out || XMEMCMP(out, encodedSig,
- min(encSigSz, MAX_ENCODED_SIG_SZ)) != 0)
- return VERIFY_SIGN_ERROR;
- }
- else {
- if (ret != sizeof(hash) || !out || XMEMCMP(out,
- hash, sizeof(hash)) != 0)
- return VERIFY_SIGN_ERROR;
- }
- } else
-#endif
-#ifdef HAVE_ECC
- /* ecdsa */
- if (sigAlgo == ecc_dsa_sa_algo) {
- int verify = 0;
-#ifndef NO_OLD_TLS
- byte* digest = &hash[MD5_DIGEST_SIZE];
- word32 digestSz = SHA_DIGEST_SIZE;
-#else
- byte* digest = hash256;
- word32 digestSz = SHA256_DIGEST_SIZE;
-#endif
- byte doUserEcc = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->EccVerifyCb)
- doUserEcc = 1;
- #endif
-
- if (!ssl->peerEccDsaKeyPresent)
- return NO_PEER_KEY;
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if (hashAlgo == sha_mac) {
- #ifndef NO_SHA
- digest = &hash[MD5_DIGEST_SIZE];
- digestSz = SHA_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = hash256;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = hash384;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
- }
- if (doUserEcc) {
- #ifdef HAVE_PK_CALLBACKS
- ret = ssl->ctx->EccVerifyCb(ssl, input + *inOutIdx, length,
- digest, digestSz,
- ssl->buffers.peerEccDsaKey.buffer,
- ssl->buffers.peerEccDsaKey.length,
- &verify, ssl->EccVerifyCtx);
- #endif
- }
- else {
- ret = ecc_verify_hash(input + *inOutIdx, length,
- digest, digestSz, &verify, ssl->peerEccDsaKey);
- }
- if (ret != 0 || verify == 0)
- return VERIFY_SIGN_ERROR;
- }
- else
-#endif /* HAVE_ECC */
- return ALGO_ID_E;
-
- /* signature length */
- *inOutIdx += length;
-
- ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
-
- return 0;
- }
-#else /* HAVE_OPENSSL or HAVE_ECC */
- return NOT_COMPILED_IN; /* not supported by build */
-#endif /* HAVE_OPENSSL or HAVE_ECC */
- }
-
-
- int SendClientKeyExchange(CYASSL* ssl)
- {
- byte encSecret[MAX_ENCRYPT_SZ];
- word32 encSz = 0;
- word32 idx = 0;
- int ret = 0;
- byte doUserRsa = 0;
-
- (void)doUserRsa;
-
- #ifdef HAVE_PK_CALLBACKS
- #ifndef NO_RSA
- if (ssl->ctx->RsaEncCb)
- doUserRsa = 1;
- #endif /* NO_RSA */
- #endif /*HAVE_PK_CALLBACKS */
-
- switch (ssl->specs.kea) {
- #ifndef NO_RSA
- case rsa_kea:
- ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->preMasterSecret,
- SECRET_LEN);
- if (ret != 0)
- return ret;
-
- ssl->arrays->preMasterSecret[0] = ssl->chVersion.major;
- ssl->arrays->preMasterSecret[1] = ssl->chVersion.minor;
- ssl->arrays->preMasterSz = SECRET_LEN;
-
- if (ssl->peerRsaKeyPresent == 0)
- return NO_PEER_KEY;
-
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- #ifndef NO_RSA
- encSz = sizeof(encSecret);
- ret = ssl->ctx->RsaEncCb(ssl,
- ssl->arrays->preMasterSecret,
- SECRET_LEN,
- encSecret, &encSz,
- ssl->buffers.peerRsaKey.buffer,
- ssl->buffers.peerRsaKey.length,
- ssl->RsaEncCtx);
- #endif /* NO_RSA */
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = RsaPublicEncrypt(ssl->arrays->preMasterSecret,
- SECRET_LEN, encSecret, sizeof(encSecret),
- ssl->peerRsaKey, ssl->rng);
- if (ret > 0) {
- encSz = ret;
- ret = 0; /* set success to 0 */
- }
- }
- break;
- #endif
- #ifdef OPENSSL_EXTRA
- case diffie_hellman_kea:
- {
- buffer serverP = ssl->buffers.serverDH_P;
- buffer serverG = ssl->buffers.serverDH_G;
- buffer serverPub = ssl->buffers.serverDH_Pub;
- byte priv[ENCRYPT_LEN];
- word32 privSz = 0;
- DhKey key;
-
- if (serverP.buffer == 0 || serverG.buffer == 0 ||
- serverPub.buffer == 0)
- return NO_PEER_KEY;
-
- InitDhKey(&key);
- ret = DhSetKey(&key, serverP.buffer, serverP.length,
- serverG.buffer, serverG.length);
- if (ret == 0)
- /* for DH, encSecret is Yc, agree is pre-master */
- ret = DhGenerateKeyPair(&key, ssl->rng, priv, &privSz,
- encSecret, &encSz);
- if (ret == 0)
- ret = DhAgree(&key, ssl->arrays->preMasterSecret,
- &ssl->arrays->preMasterSz, priv, privSz,
- serverPub.buffer, serverPub.length);
- FreeDhKey(&key);
- }
- break;
- #endif /* OPENSSL_EXTRA */
- #ifndef NO_PSK
- case psk_kea:
- {
- byte* pms = ssl->arrays->preMasterSecret;
-
- ssl->arrays->psk_keySz = ssl->options.client_psk_cb(ssl,
- ssl->arrays->server_hint, ssl->arrays->client_identity,
- MAX_PSK_ID_LEN, ssl->arrays->psk_key, MAX_PSK_KEY_LEN);
- if (ssl->arrays->psk_keySz == 0 ||
- ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN)
- return PSK_KEY_ERROR;
- encSz = (word32)XSTRLEN(ssl->arrays->client_identity);
- if (encSz > MAX_PSK_ID_LEN) return CLIENT_ID_ERROR;
- XMEMCPY(encSecret, ssl->arrays->client_identity, encSz);
-
- /* make psk pre master secret */
- /* length of key + length 0s + length of key + key */
- c16toa((word16)ssl->arrays->psk_keySz, pms);
- pms += 2;
- XMEMSET(pms, 0, ssl->arrays->psk_keySz);
- pms += ssl->arrays->psk_keySz;
- c16toa((word16)ssl->arrays->psk_keySz, pms);
- pms += 2;
- XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz);
- ssl->arrays->preMasterSz = ssl->arrays->psk_keySz * 2 + 4;
- XMEMSET(ssl->arrays->psk_key, 0, ssl->arrays->psk_keySz);
- ssl->arrays->psk_keySz = 0; /* No further need */
- }
- break;
- #endif /* NO_PSK */
- #ifdef HAVE_NTRU
- case ntru_kea:
- {
- word32 rc;
- word16 cipherLen = sizeof(encSecret);
- DRBG_HANDLE drbg;
- static uint8_t const cyasslStr[] = {
- 'C', 'y', 'a', 'S', 'S', 'L', ' ', 'N', 'T', 'R', 'U'
- };
-
- ret = RNG_GenerateBlock(ssl->rng,
- ssl->arrays->preMasterSecret, SECRET_LEN);
- if (ret != 0)
- return ret;
-
- ssl->arrays->preMasterSz = SECRET_LEN;
-
- if (ssl->peerNtruKeyPresent == 0)
- return NO_PEER_KEY;
-
- rc = crypto_drbg_instantiate(MAX_NTRU_BITS, cyasslStr,
- sizeof(cyasslStr), GetEntropy,
- &drbg);
- if (rc != DRBG_OK)
- return NTRU_DRBG_ERROR;
-
- rc = crypto_ntru_encrypt(drbg, ssl->peerNtruKeyLen,
- ssl->peerNtruKey,
- ssl->arrays->preMasterSz,
- ssl->arrays->preMasterSecret,
- &cipherLen, encSecret);
- crypto_drbg_uninstantiate(drbg);
- if (rc != NTRU_OK)
- return NTRU_ENCRYPT_ERROR;
-
- encSz = cipherLen;
- ret = 0;
- }
- break;
- #endif /* HAVE_NTRU */
- #ifdef HAVE_ECC
- case ecc_diffie_hellman_kea:
- {
- ecc_key myKey;
- ecc_key* peerKey = NULL;
- word32 size = sizeof(encSecret);
-
- if (ssl->specs.static_ecdh) {
- /* TODO: EccDsa is really fixed Ecc change naming */
- if (!ssl->peerEccDsaKeyPresent || !ssl->peerEccDsaKey->dp)
- return NO_PEER_KEY;
- peerKey = ssl->peerEccDsaKey;
- }
- else {
- if (!ssl->peerEccKeyPresent || !ssl->peerEccKey->dp)
- return NO_PEER_KEY;
- peerKey = ssl->peerEccKey;
- }
-
- if (peerKey == NULL)
- return NO_PEER_KEY;
-
- ecc_init(&myKey);
- ret = ecc_make_key(ssl->rng, peerKey->dp->size, &myKey);
- if (ret != 0)
- return ECC_MAKEKEY_ERROR;
-
- /* precede export with 1 byte length */
- ret = ecc_export_x963(&myKey, encSecret + 1, &size);
- encSecret[0] = (byte)size;
- encSz = size + 1;
-
- if (ret != 0)
- ret = ECC_EXPORT_ERROR;
- else {
- size = sizeof(ssl->arrays->preMasterSecret);
- ret = ecc_shared_secret(&myKey, peerKey,
- ssl->arrays->preMasterSecret, &size);
- if (ret != 0)
- ret = ECC_SHARED_ERROR;
- }
-
- ssl->arrays->preMasterSz = size;
- ecc_free(&myKey);
- }
- break;
- #endif /* HAVE_ECC */
- default:
- return ALGO_ID_E; /* unsupported kea */
- }
-
- if (ret == 0) {
- byte *output;
- int sendSz;
- word32 tlsSz = 0;
-
- if (ssl->options.tls || ssl->specs.kea == diffie_hellman_kea)
- tlsSz = 2;
-
- if (ssl->specs.kea == ecc_diffie_hellman_kea) /* always off */
- tlsSz = 0;
-
- sendSz = encSz + tlsSz + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
- idx = HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
- idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
- }
- #endif
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, encSz + tlsSz, client_key_exchange, ssl);
-
- if (tlsSz) {
- c16toa((word16)encSz, &output[idx]);
- idx += 2;
- }
- XMEMCPY(output + idx, encSecret, encSz);
- /* if add more to output, adjust idx
- idx += encSz; */
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ClientKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ClientKeyExchange", &ssl->timeoutInfo,
- output, sendSz, ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- if (ssl->options.groupMessages)
- ret = 0;
- else
- ret = SendBuffered(ssl);
- }
-
- if (ret == 0 || ret == WANT_WRITE) {
- int tmpRet = MakeMasterSecret(ssl);
- if (tmpRet != 0)
- ret = tmpRet; /* save WANT_WRITE unless more serious */
- ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
- }
- /* No further need for PMS */
- XMEMSET(ssl->arrays->preMasterSecret, 0, ssl->arrays->preMasterSz);
- ssl->arrays->preMasterSz = 0;
-
- return ret;
- }
-
-#ifndef NO_CERTS
- int SendCertificateVerify(CYASSL* ssl)
- {
- byte *output;
- int sendSz = 0, length, ret;
- word32 idx = 0;
- word32 sigOutSz = 0;
-#ifndef NO_RSA
- RsaKey key;
- int initRsaKey = 0;
-#endif
- int usingEcc = 0;
-#ifdef HAVE_ECC
- ecc_key eccKey;
-#endif
-
- (void)idx;
-
- if (ssl->options.sendVerify == SEND_BLANK_CERT)
- return 0; /* sent blank cert, can't verify */
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, MAX_CERT_VERIFY_SZ)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- ret = BuildCertHashes(ssl, &ssl->certHashes);
- if (ret != 0)
- return ret;
-
-#ifdef HAVE_ECC
- ecc_init(&eccKey);
-#endif
-#ifndef NO_RSA
- ret = InitRsaKey(&key, ssl->heap);
- if (ret == 0) initRsaKey = 1;
- if (ret == 0)
- ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &idx, &key,
- ssl->buffers.key.length);
- if (ret == 0)
- sigOutSz = RsaEncryptSize(&key);
- else
-#endif
- {
- #ifdef HAVE_ECC
- CYASSL_MSG("Trying ECC client cert, RSA didn't work");
-
- idx = 0;
- ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &idx, &eccKey,
- ssl->buffers.key.length);
- if (ret == 0) {
- CYASSL_MSG("Using ECC client cert");
- usingEcc = 1;
- sigOutSz = MAX_ENCODED_SIG_SZ;
- }
- else {
- CYASSL_MSG("Bad client cert type");
- }
- #endif
- }
- if (ret == 0) {
- byte* verify = (byte*)&output[RECORD_HEADER_SZ +
- HANDSHAKE_HEADER_SZ];
-#ifndef NO_OLD_TLS
- byte* signBuffer = ssl->certHashes.md5;
-#else
- byte* signBuffer = NULL;
-#endif
- word32 signSz = FINISHED_SZ;
- byte encodedSig[MAX_ENCODED_SIG_SZ];
- word32 extraSz = 0; /* tls 1.2 hash/sig */
-
- (void)encodedSig;
- (void)signSz;
- (void)signBuffer;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- verify += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- #endif
- length = sigOutSz;
- if (IsAtLeastTLSv1_2(ssl)) {
- verify[0] = ssl->suites->hashAlgo;
- verify[1] = usingEcc ? ecc_dsa_sa_algo : rsa_sa_algo;
- extraSz = HASH_SIG_SIZE;
- }
-
- if (usingEcc) {
-#ifdef HAVE_ECC
- word32 localSz = MAX_ENCODED_SIG_SZ;
- word32 digestSz;
- byte* digest;
- byte doUserEcc = 0;
-#ifndef NO_OLD_TLS
- /* old tls default */
- digestSz = SHA_DIGEST_SIZE;
- digest = ssl->certHashes.sha;
-#else
- /* new tls default */
- digestSz = SHA256_DIGEST_SIZE;
- digest = ssl->certHashes.sha256;
-#endif
-
- #ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- if (ssl->ctx->EccSignCb)
- doUserEcc = 1;
- #endif /* HAVE_ECC */
- #endif /*HAVE_PK_CALLBACKS */
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if (ssl->suites->hashAlgo == sha_mac) {
- #ifndef NO_SHA
- digest = ssl->certHashes.sha;
- digestSz = SHA_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = ssl->certHashes.sha256;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = ssl->certHashes.sha384;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
- }
-
- if (doUserEcc) {
- #ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ret = ssl->ctx->EccSignCb(ssl, digest, digestSz,
- encodedSig, &localSz,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->EccSignCtx);
- #endif /* HAVE_ECC */
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = ecc_sign_hash(digest, digestSz, encodedSig,
- &localSz, ssl->rng, &eccKey);
- }
- if (ret == 0) {
- length = localSz;
- c16toa((word16)length, verify + extraSz); /* prepend hdr */
- XMEMCPY(verify + extraSz + VERIFY_HEADER,encodedSig,length);
- }
-#endif
- }
-#ifndef NO_RSA
- else {
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaSignCb)
- doUserRsa = 1;
- #endif /*HAVE_PK_CALLBACKS */
-
- if (IsAtLeastTLSv1_2(ssl)) {
-#ifndef NO_OLD_TLS
- byte* digest = ssl->certHashes.sha;
- int digestSz = SHA_DIGEST_SIZE;
- int typeH = SHAh;
-#else
- byte* digest = ssl->certHashes.sha256;
- int digestSz = SHA256_DIGEST_SIZE;
- int typeH = SHA256h;
-#endif
-
- if (ssl->suites->hashAlgo == sha_mac) {
- #ifndef NO_SHA
- digest = ssl->certHashes.sha;
- typeH = SHAh;
- digestSz = SHA_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = ssl->certHashes.sha256;
- typeH = SHA256h;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = ssl->certHashes.sha384;
- typeH = SHA384h;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
-
- signSz = EncodeSignature(encodedSig, digest,digestSz,typeH);
- signBuffer = encodedSig;
- }
-
- c16toa((word16)length, verify + extraSz); /* prepend hdr */
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- #ifndef NO_RSA
- word32 ioLen = ENCRYPT_LEN;
- ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
- verify + extraSz + VERIFY_HEADER,
- &ioLen,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->RsaSignCtx);
- #endif /* NO_RSA */
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = RsaSSL_Sign(signBuffer, signSz, verify + extraSz +
- VERIFY_HEADER, ENCRYPT_LEN, &key, ssl->rng);
- }
-
- if (ret > 0)
- ret = 0; /* RSA reset */
- }
-#endif
- if (ret == 0) {
- AddHeaders(output, length + extraSz + VERIFY_HEADER,
- certificate_verify, ssl);
-
- sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + length +
- extraSz + VERIFY_HEADER;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- }
- }
-#ifndef NO_RSA
- if (initRsaKey)
- FreeRsaKey(&key);
-#endif
-#ifdef HAVE_ECC
- ecc_free(&eccKey);
-#endif
-
- if (ret == 0) {
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("CertificateVerify", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("CertificateVerify", &ssl->timeoutInfo,
- output, sendSz, ssl->heap);
- #endif
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- return 0;
- else
- return SendBuffered(ssl);
- }
- else
- return ret;
- }
-#endif /* NO_CERTS */
-
-
-#endif /* NO_CYASSL_CLIENT */
-
-
-#ifndef NO_CYASSL_SERVER
-
- int SendServerHello(CYASSL* ssl)
- {
- byte *output;
- word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int sendSz;
- int ret;
-
- length = VERSION_SZ + RAN_LEN
- + ID_LEN + ENUM_LEN
- + SUITE_LEN
- + ENUM_LEN;
-
-#ifdef HAVE_TLS_EXTENSIONS
- length += TLSX_GetResponseSize(ssl);
-#endif
-
- /* check for avalaible size */
- if ((ret = CheckAvailableSize(ssl, MAX_HELLO_SZ)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
- AddHeaders(output, length, server_hello, ssl);
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- }
- #endif
- /* now write to output */
- /* first version */
- output[idx++] = ssl->version.major;
- output[idx++] = ssl->version.minor;
-
- /* then random */
- if (!ssl->options.resuming) {
- ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
- RAN_LEN);
- if (ret != 0)
- return ret;
- }
-
- XMEMCPY(output + idx, ssl->arrays->serverRandom, RAN_LEN);
- idx += RAN_LEN;
-
-#ifdef SHOW_SECRETS
- {
- int j;
- printf("server random: ");
- for (j = 0; j < RAN_LEN; j++)
- printf("%02x", ssl->arrays->serverRandom[j]);
- printf("\n");
- }
-#endif
- /* then session id */
- output[idx++] = ID_LEN;
-
- if (!ssl->options.resuming) {
- ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->sessionID, ID_LEN);
- if (ret != 0)
- return ret;
- }
-
- XMEMCPY(output + idx, ssl->arrays->sessionID, ID_LEN);
- idx += ID_LEN;
-
- /* then cipher suite */
- output[idx++] = ssl->options.cipherSuite0;
- output[idx++] = ssl->options.cipherSuite;
-
- /* then compression */
- if (ssl->options.usingCompression)
- output[idx++] = ZLIB_COMPRESSION;
- else
- output[idx++] = NO_COMPRESSION;
-
- /* last, extensions */
-#ifdef HAVE_TLS_EXTENSIONS
- if (IsTLS(ssl))
- TLSX_WriteResponse(ssl, output + idx);
-#endif
-
- ssl->buffers.outputBuffer.length += sendSz;
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerHello", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ServerHello", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
- #endif
-
- ssl->options.serverState = SERVER_HELLO_COMPLETE;
-
- if (ssl->options.groupMessages)
- return 0;
- else
- return SendBuffered(ssl);
- }
-
-
-#ifdef HAVE_ECC
-
- static byte SetCurveId(int size)
- {
- switch(size) {
- case 20:
- return secp160r1;
- case 24:
- return secp192r1;
- case 28:
- return secp224r1;
- case 32:
- return secp256r1;
- case 48:
- return secp384r1;
- case 66:
- return secp521r1;
- default:
- return 0;
- }
- }
-
-#endif /* HAVE_ECC */
-
-
- int SendServerKeyExchange(CYASSL* ssl)
- {
- int ret = 0;
- (void)ssl;
-
- #ifndef NO_PSK
- if (ssl->specs.kea == psk_kea)
- {
- byte *output;
- word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int sendSz;
- if (ssl->arrays->server_hint[0] == 0) return 0; /* don't send */
-
- /* include size part */
- length = (word32)XSTRLEN(ssl->arrays->server_hint);
- if (length > MAX_PSK_ID_LEN) return SERVER_HINT_ERROR;
- length += HINT_LEN_SZ;
- sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- }
- #endif
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, length, server_key_exchange, ssl);
-
- /* key data */
- c16toa((word16)(length - HINT_LEN_SZ), output + idx);
- idx += HINT_LEN_SZ;
- XMEMCPY(output + idx, ssl->arrays->server_hint,length -HINT_LEN_SZ);
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
- output, sendSz, ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- ret = 0;
- else
- ret = SendBuffered(ssl);
- ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
- }
- #endif /*NO_PSK */
-
- #ifdef HAVE_ECC
- if (ssl->specs.kea == ecc_diffie_hellman_kea)
- {
- byte *output;
- word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int sendSz;
- byte exportBuf[MAX_EXPORT_ECC_SZ];
- word32 expSz = sizeof(exportBuf);
- word32 sigSz;
- word32 preSigSz, preSigIdx;
-#ifndef NO_RSA
- RsaKey rsaKey;
-#endif
- ecc_key dsaKey;
-
- if (ssl->specs.static_ecdh) {
- CYASSL_MSG("Using Static ECDH, not sending ServerKeyExchagne");
- return 0;
- }
-
- /* curve type, named curve, length(1) */
- length = ENUM_LEN + CURVE_LEN + ENUM_LEN;
- /* pub key size */
- CYASSL_MSG("Using ephemeral ECDH");
- if (ecc_export_x963(ssl->eccTempKey, exportBuf, &expSz) != 0)
- return ECC_EXPORT_ERROR;
- length += expSz;
-
- preSigSz = length;
- preSigIdx = idx;
-
-#ifndef NO_RSA
- ret = InitRsaKey(&rsaKey, ssl->heap);
- if (ret != 0) return ret;
-#endif
- ecc_init(&dsaKey);
-
- /* sig length */
- length += LENGTH_SZ;
-
- if (!ssl->buffers.key.buffer) {
-#ifndef NO_RSA
- FreeRsaKey(&rsaKey);
-#endif
- ecc_free(&dsaKey);
- return NO_PRIVATE_KEY;
- }
-
-#ifndef NO_RSA
- if (ssl->specs.sig_algo == rsa_sa_algo) {
- /* rsa sig size */
- word32 i = 0;
- ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &i,
- &rsaKey, ssl->buffers.key.length);
- if (ret != 0) return ret;
- sigSz = RsaEncryptSize(&rsaKey);
- } else
-#endif
- if (ssl->specs.sig_algo == ecc_dsa_sa_algo) {
- /* ecdsa sig size */
- word32 i = 0;
- ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &i,
- &dsaKey, ssl->buffers.key.length);
- if (ret != 0) return ret;
- sigSz = ecc_sig_size(&dsaKey); /* worst case estimate */
- }
- else {
-#ifndef NO_RSA
- FreeRsaKey(&rsaKey);
-#endif
- ecc_free(&dsaKey);
- return ALGO_ID_E; /* unsupported type */
- }
- length += sigSz;
-
- if (IsAtLeastTLSv1_2(ssl))
- length += HASH_SIG_SIZE;
-
- sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- preSigIdx = idx;
- }
- #endif
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) {
-#ifndef NO_RSA
- FreeRsaKey(&rsaKey);
-#endif
- ecc_free(&dsaKey);
- return ret;
- }
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- /* record and message headers will be added below, when we're sure
- of the sig length */
-
- /* key exchange data */
- output[idx++] = named_curve;
- output[idx++] = 0x00; /* leading zero */
- output[idx++] = SetCurveId(ecc_size(ssl->eccTempKey));
- output[idx++] = (byte)expSz;
- XMEMCPY(output + idx, exportBuf, expSz);
- idx += expSz;
- if (IsAtLeastTLSv1_2(ssl)) {
- output[idx++] = ssl->suites->hashAlgo;
- output[idx++] = ssl->suites->sigAlgo;
- }
-
- /* Signtaure length will be written later, when we're sure what it
- is */
-
- /* do signature */
- {
-#ifndef NO_OLD_TLS
- Md5 md5;
- Sha sha;
-#endif
- byte hash[FINISHED_SZ];
- #ifndef NO_SHA256
- Sha256 sha256;
- byte hash256[SHA256_DIGEST_SIZE];
- #endif
- #ifdef CYASSL_SHA384
- Sha384 sha384;
- byte hash384[SHA384_DIGEST_SIZE];
- #endif
-
-#ifndef NO_OLD_TLS
- /* md5 */
- InitMd5(&md5);
- Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
- Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
- Md5Update(&md5, output + preSigIdx, preSigSz);
- Md5Final(&md5, hash);
-
- /* sha */
- ret = InitSha(&sha);
- if (ret != 0)
- return ret;
- ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
- ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
- ShaUpdate(&sha, output + preSigIdx, preSigSz);
- ShaFinal(&sha, &hash[MD5_DIGEST_SIZE]);
-#endif
-
- #ifndef NO_SHA256
- ret = InitSha256(&sha256);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, output + preSigIdx, preSigSz);
- if (ret != 0)
- return ret;
- ret = Sha256Final(&sha256, hash256);
- if (ret != 0)
- return ret;
- #endif
-
- #ifdef CYASSL_SHA384
- ret = InitSha384(&sha384);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, output + preSigIdx, preSigSz);
- if (ret != 0)
- return ret;
- ret = Sha384Final(&sha384, hash384);
- if (ret != 0)
- return ret;
- #endif
-#ifndef NO_RSA
- if (ssl->suites->sigAlgo == rsa_sa_algo) {
- byte* signBuffer = hash;
- word32 signSz = sizeof(hash);
- byte encodedSig[MAX_ENCODED_SIG_SZ];
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaSignCb)
- doUserRsa = 1;
- #endif /*HAVE_PK_CALLBACKS */
-
- if (IsAtLeastTLSv1_2(ssl)) {
- byte* digest = &hash[MD5_DIGEST_SIZE];
- int typeH = SHAh;
- int digestSz = SHA_DIGEST_SIZE;
-
- if (ssl->suites->hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = hash256;
- typeH = SHA256h;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = hash384;
- typeH = SHA384h;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
-
- signSz = EncodeSignature(encodedSig, digest, digestSz,
- typeH);
- signBuffer = encodedSig;
- }
- /* write sig size here */
- c16toa((word16)sigSz, output + idx);
- idx += LENGTH_SZ;
-
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- word32 ioLen = sigSz;
- ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
- output + idx,
- &ioLen,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->RsaSignCtx);
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = RsaSSL_Sign(signBuffer, signSz, output + idx,
- sigSz, &rsaKey, ssl->rng);
- if (ret > 0)
- ret = 0; /* reset on success */
- }
- FreeRsaKey(&rsaKey);
- ecc_free(&dsaKey);
- if (ret < 0)
- return ret;
- } else
-#endif
- if (ssl->suites->sigAlgo == ecc_dsa_sa_algo) {
-#ifndef NO_OLD_TLS
- byte* digest = &hash[MD5_DIGEST_SIZE];
- word32 digestSz = SHA_DIGEST_SIZE;
-#else
- byte* digest = hash256;
- word32 digestSz = SHA256_DIGEST_SIZE;
-#endif
- word32 sz = sigSz;
- byte doUserEcc = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- if (ssl->ctx->EccSignCb)
- doUserEcc = 1;
- #endif /* HAVE_ECC */
- #endif /*HAVE_PK_CALLBACKS */
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if (ssl->suites->hashAlgo == sha_mac) {
- #ifndef NO_SHA
- digest = &hash[MD5_DIGEST_SIZE];
- digestSz = SHA_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = hash256;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = hash384;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
- }
-
- if (doUserEcc) {
- #ifdef HAVE_PK_CALLBACKS
- #ifdef HAVE_ECC
- ret = ssl->ctx->EccSignCb(ssl, digest, digestSz,
- output + LENGTH_SZ + idx, &sz,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->EccSignCtx);
- #endif /* HAVE_ECC */
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = ecc_sign_hash(digest, digestSz,
- output + LENGTH_SZ + idx, &sz, ssl->rng, &dsaKey);
- }
-#ifndef NO_RSA
- FreeRsaKey(&rsaKey);
-#endif
- ecc_free(&dsaKey);
- if (ret < 0) return ret;
-
- /* Now that we know the real sig size, write it. */
- c16toa((word16)sz, output + idx);
-
- /* And adjust length and sendSz from estimates */
- length += sz - sigSz;
- sendSz += sz - sigSz;
- }
- }
-
- AddHeaders(output, length, server_key_exchange, ssl);
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
- output, sendSz, ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- ret = 0;
- else
- ret = SendBuffered(ssl);
- ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
- }
- #endif /* HAVE_ECC */
-
- #ifdef OPENSSL_EXTRA
- if (ssl->specs.kea == diffie_hellman_kea) {
- byte *output;
- word32 length = 0, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int sendSz;
- word32 sigSz = 0, i = 0;
- word32 preSigSz = 0, preSigIdx = 0;
- RsaKey rsaKey;
- DhKey dhKey;
-
- if (ssl->buffers.serverDH_P.buffer == NULL ||
- ssl->buffers.serverDH_G.buffer == NULL)
- return NO_DH_PARAMS;
-
- if (ssl->buffers.serverDH_Pub.buffer == NULL) {
- ssl->buffers.serverDH_Pub.buffer = (byte*)XMALLOC(
- ssl->buffers.serverDH_P.length + 2, ssl->ctx->heap,
- DYNAMIC_TYPE_DH);
- if (ssl->buffers.serverDH_Pub.buffer == NULL)
- return MEMORY_E;
- }
-
- if (ssl->buffers.serverDH_Priv.buffer == NULL) {
- ssl->buffers.serverDH_Priv.buffer = (byte*)XMALLOC(
- ssl->buffers.serverDH_P.length + 2, ssl->ctx->heap,
- DYNAMIC_TYPE_DH);
- if (ssl->buffers.serverDH_Priv.buffer == NULL)
- return MEMORY_E;
- }
-
- InitDhKey(&dhKey);
- ret = DhSetKey(&dhKey, ssl->buffers.serverDH_P.buffer,
- ssl->buffers.serverDH_P.length,
- ssl->buffers.serverDH_G.buffer,
- ssl->buffers.serverDH_G.length);
- if (ret == 0)
- ret = DhGenerateKeyPair(&dhKey, ssl->rng,
- ssl->buffers.serverDH_Priv.buffer,
- &ssl->buffers.serverDH_Priv.length,
- ssl->buffers.serverDH_Pub.buffer,
- &ssl->buffers.serverDH_Pub.length);
- FreeDhKey(&dhKey);
-
- if (ret == 0) {
- ret = InitRsaKey(&rsaKey, ssl->heap);
- if (ret != 0) return ret;
- }
- if (ret == 0) {
- length = LENGTH_SZ * 3; /* p, g, pub */
- length += ssl->buffers.serverDH_P.length +
- ssl->buffers.serverDH_G.length +
- ssl->buffers.serverDH_Pub.length;
-
- preSigIdx = idx;
- preSigSz = length;
-
- /* sig length */
- length += LENGTH_SZ;
-
- if (!ssl->buffers.key.buffer)
- return NO_PRIVATE_KEY;
-
- ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &i, &rsaKey,
- ssl->buffers.key.length);
- if (ret == 0) {
- sigSz = RsaEncryptSize(&rsaKey);
- length += sigSz;
- }
- }
- if (ret != 0) {
- FreeRsaKey(&rsaKey);
- return ret;
- }
-
- if (IsAtLeastTLSv1_2(ssl))
- length += HASH_SIG_SIZE;
-
- sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- preSigIdx = idx;
- }
- #endif
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) {
- FreeRsaKey(&rsaKey);
- return ret;
- }
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, length, server_key_exchange, ssl);
-
- /* add p, g, pub */
- c16toa((word16)ssl->buffers.serverDH_P.length, output + idx);
- idx += LENGTH_SZ;
- XMEMCPY(output + idx, ssl->buffers.serverDH_P.buffer,
- ssl->buffers.serverDH_P.length);
- idx += ssl->buffers.serverDH_P.length;
-
- /* g */
- c16toa((word16)ssl->buffers.serverDH_G.length, output + idx);
- idx += LENGTH_SZ;
- XMEMCPY(output + idx, ssl->buffers.serverDH_G.buffer,
- ssl->buffers.serverDH_G.length);
- idx += ssl->buffers.serverDH_G.length;
-
- /* pub */
- c16toa((word16)ssl->buffers.serverDH_Pub.length, output + idx);
- idx += LENGTH_SZ;
- XMEMCPY(output + idx, ssl->buffers.serverDH_Pub.buffer,
- ssl->buffers.serverDH_Pub.length);
- idx += ssl->buffers.serverDH_Pub.length;
-
- /* Add signature */
- if (IsAtLeastTLSv1_2(ssl)) {
- output[idx++] = ssl->suites->hashAlgo;
- output[idx++] = ssl->suites->sigAlgo;
- }
- /* size */
- c16toa((word16)sigSz, output + idx);
- idx += LENGTH_SZ;
-
- /* do signature */
- {
-#ifndef NO_OLD_TLS
- Md5 md5;
- Sha sha;
-#endif
- byte hash[FINISHED_SZ];
- #ifndef NO_SHA256
- Sha256 sha256;
- byte hash256[SHA256_DIGEST_SIZE];
- #endif
- #ifdef CYASSL_SHA384
- Sha384 sha384;
- byte hash384[SHA384_DIGEST_SIZE];
- #endif
-
-#ifndef NO_OLD_TLS
- /* md5 */
- InitMd5(&md5);
- Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
- Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
- Md5Update(&md5, output + preSigIdx, preSigSz);
- Md5Final(&md5, hash);
-
- /* sha */
- ret = InitSha(&sha);
- if (ret != 0)
- return ret;
- ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
- ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
- ShaUpdate(&sha, output + preSigIdx, preSigSz);
- ShaFinal(&sha, &hash[MD5_DIGEST_SIZE]);
-#endif
-
- #ifndef NO_SHA256
- ret = InitSha256(&sha256);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha256Update(&sha256, output + preSigIdx, preSigSz);
- if (ret != 0)
- return ret;
- ret = Sha256Final(&sha256, hash256);
- if (ret != 0)
- return ret;
- #endif
-
- #ifdef CYASSL_SHA384
- ret = InitSha384(&sha384);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
- if (ret != 0)
- return ret;
- ret = Sha384Update(&sha384, output + preSigIdx, preSigSz);
- if (ret != 0)
- return ret;
- ret = Sha384Final(&sha384, hash384);
- if (ret != 0)
- return ret;
- #endif
-#ifndef NO_RSA
- if (ssl->suites->sigAlgo == rsa_sa_algo) {
- byte* signBuffer = hash;
- word32 signSz = sizeof(hash);
- byte encodedSig[MAX_ENCODED_SIG_SZ];
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaSignCb)
- doUserRsa = 1;
- #endif /*HAVE_PK_CALLBACKS */
-
- if (IsAtLeastTLSv1_2(ssl)) {
- byte* digest = &hash[MD5_DIGEST_SIZE];
- int typeH = SHAh;
- int digestSz = SHA_DIGEST_SIZE;
-
- if (ssl->suites->hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = hash256;
- typeH = SHA256h;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (ssl->suites->hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = hash384;
- typeH = SHA384h;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
-
- signSz = EncodeSignature(encodedSig, digest, digestSz,
- typeH);
- signBuffer = encodedSig;
- }
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- word32 ioLen = sigSz;
- ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
- output + idx,
- &ioLen,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->RsaSignCtx);
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- ret = RsaSSL_Sign(signBuffer, signSz, output + idx,
- sigSz, &rsaKey, ssl->rng);
- }
- FreeRsaKey(&rsaKey);
- if (ret < 0)
- return ret;
- }
-#endif
- }
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return ret;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
- output, sendSz, ssl->heap);
- #endif
-
- ssl->buffers.outputBuffer.length += sendSz;
- if (ssl->options.groupMessages)
- ret = 0;
- else
- ret = SendBuffered(ssl);
- ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
- }
- #endif /* OPENSSL_EXTRA */
-
- return ret;
- }
-
-
- /* cipher requirements */
- enum {
- REQUIRES_RSA,
- REQUIRES_DHE,
- REQUIRES_ECC_DSA,
- REQUIRES_ECC_STATIC,
- REQUIRES_PSK,
- REQUIRES_NTRU,
- REQUIRES_RSA_SIG
- };
-
-
-
- /* Does this cipher suite (first, second) have the requirement
- an ephemeral key exchange will still require the key for signing
- the key exchange so ECHDE_RSA requires an rsa key thus rsa_kea */
- static int CipherRequires(byte first, byte second, int requirement)
- {
- /* ECC extensions */
- if (first == ECC_BYTE) {
-
- switch (second) {
-
-#ifndef NO_RSA
- case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-
-#ifndef NO_DES3
- case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-#endif
-
-#ifndef NO_RC4
- case TLS_ECDHE_RSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-#endif
-#endif /* NO_RSA */
-
-#ifndef NO_DES3
- case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-#endif
-#ifndef NO_RC4
- case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-#endif
-#ifndef NO_RSA
- case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-#endif
-
- case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-
- case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-
- case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-
-#ifndef NO_RSA
- case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_128_CCM_8 :
- case TLS_RSA_WITH_AES_256_CCM_8 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-
- case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 :
- case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- break;
-
- case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 :
- case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 :
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-#endif
-
- case TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 :
- case TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 :
- case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- break;
-
- case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 :
- case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 :
- if (requirement == REQUIRES_ECC_DSA)
- return 1;
- if (requirement == REQUIRES_ECC_STATIC)
- return 1;
- break;
-
- case TLS_PSK_WITH_AES_128_CCM:
- case TLS_PSK_WITH_AES_256_CCM:
- case TLS_PSK_WITH_AES_128_CCM_8:
- case TLS_PSK_WITH_AES_256_CCM_8:
- if (requirement == REQUIRES_PSK)
- return 1;
- break;
-
- default:
- CYASSL_MSG("Unsupported cipher suite, CipherRequires ECC");
- return 0;
- } /* switch */
- } /* if */
- if (first != ECC_BYTE) { /* normal suites */
- switch (second) {
-
-#ifndef NO_RSA
- case SSL_RSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_NTRU_RSA_WITH_RC4_128_SHA :
- if (requirement == REQUIRES_NTRU)
- return 1;
- break;
-
- case SSL_RSA_WITH_RC4_128_MD5 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case SSL_RSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA :
- if (requirement == REQUIRES_NTRU)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_128_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_NTRU_RSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_NTRU)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_256_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_NULL_SHA :
- case TLS_RSA_WITH_NULL_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_NTRU_RSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_NTRU)
- return 1;
- break;
-#endif
-
- case TLS_PSK_WITH_AES_128_CBC_SHA256 :
- case TLS_PSK_WITH_AES_128_CBC_SHA :
- case TLS_PSK_WITH_AES_256_CBC_SHA :
- case TLS_PSK_WITH_NULL_SHA256 :
- case TLS_PSK_WITH_NULL_SHA :
- if (requirement == REQUIRES_PSK)
- return 1;
- break;
-
-#ifndef NO_RSA
- case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-
- case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-
- case TLS_DHE_RSA_WITH_AES_128_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-
- case TLS_DHE_RSA_WITH_AES_256_CBC_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-
- case TLS_RSA_WITH_HC_128_MD5 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_HC_128_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_HC_128_B2B256:
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_128_CBC_B2B256:
- case TLS_RSA_WITH_AES_256_CBC_B2B256:
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_RABBIT_SHA :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_RSA_WITH_AES_128_GCM_SHA256 :
- case TLS_RSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 :
- case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-
- case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA :
- case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA :
- case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 :
- case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- break;
-
- case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA :
- case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA :
- case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 :
- case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 :
- if (requirement == REQUIRES_RSA)
- return 1;
- if (requirement == REQUIRES_RSA_SIG)
- return 1;
- if (requirement == REQUIRES_DHE)
- return 1;
- break;
-#endif
-
- default:
- CYASSL_MSG("Unsupported cipher suite, CipherRequires");
- return 0;
- } /* switch */
- } /* if ECC / Normal suites else */
-
- return 0;
- }
-
-
- /* Make sure client setup is valid for this suite, true on success */
- int VerifyClientSuite(CYASSL* ssl)
- {
- int havePSK = 0;
- byte first = ssl->options.cipherSuite0;
- byte second = ssl->options.cipherSuite;
-
- CYASSL_ENTER("VerifyClientSuite");
-
- #ifndef NO_PSK
- havePSK = ssl->options.havePSK;
- #endif
-
- if (CipherRequires(first, second, REQUIRES_PSK)) {
- CYASSL_MSG("Requires PSK");
- if (havePSK == 0) {
- CYASSL_MSG("Don't have PSK");
- return 0;
- }
- }
-
- return 1; /* success */
- }
-
-
- /* Make sure server cert/key are valid for this suite, true on success */
- static int VerifyServerSuite(CYASSL* ssl, word16 idx)
- {
- int haveRSA = !ssl->options.haveStaticECC;
- int havePSK = 0;
- byte first;
- byte second;
-
- CYASSL_ENTER("VerifyServerSuite");
-
- if (ssl->suites == NULL) {
- CYASSL_MSG("Suites pointer error");
- return 0;
- }
-
- first = ssl->suites->suites[idx];
- second = ssl->suites->suites[idx+1];
-
- #ifndef NO_PSK
- havePSK = ssl->options.havePSK;
- #endif
-
- if (ssl->options.haveNTRU)
- haveRSA = 0;
-
- if (CipherRequires(first, second, REQUIRES_RSA)) {
- CYASSL_MSG("Requires RSA");
- if (haveRSA == 0) {
- CYASSL_MSG("Don't have RSA");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_DHE)) {
- CYASSL_MSG("Requires DHE");
- if (ssl->options.haveDH == 0) {
- CYASSL_MSG("Don't have DHE");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_ECC_DSA)) {
- CYASSL_MSG("Requires ECCDSA");
- if (ssl->options.haveECDSAsig == 0) {
- CYASSL_MSG("Don't have ECCDSA");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_ECC_STATIC)) {
- CYASSL_MSG("Requires static ECC");
- if (ssl->options.haveStaticECC == 0) {
- CYASSL_MSG("Don't have static ECC");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_PSK)) {
- CYASSL_MSG("Requires PSK");
- if (havePSK == 0) {
- CYASSL_MSG("Don't have PSK");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_NTRU)) {
- CYASSL_MSG("Requires NTRU");
- if (ssl->options.haveNTRU == 0) {
- CYASSL_MSG("Don't have NTRU");
- return 0;
- }
- }
-
- if (CipherRequires(first, second, REQUIRES_RSA_SIG)) {
- CYASSL_MSG("Requires RSA Signature");
- if (ssl->options.side == CYASSL_SERVER_END &&
- ssl->options.haveECDSAsig == 1) {
- CYASSL_MSG("Don't have RSA Signature");
- return 0;
- }
- }
-
-#ifdef HAVE_SUPPORTED_CURVES
- if (!TLSX_ValidateEllipticCurves(ssl, first, second)) {
- CYASSL_MSG("Don't have matching curves");
- return 0;
- }
-#endif
-
- /* ECCDHE is always supported if ECC on */
-
- return 1;
- }
-
-
- static int MatchSuite(CYASSL* ssl, Suites* peerSuites)
- {
- word16 i, j;
-
- CYASSL_ENTER("MatchSuite");
-
- /* & 0x1 equivalent % 2 */
- if (peerSuites->suiteSz == 0 || peerSuites->suiteSz & 0x1)
- return MATCH_SUITE_ERROR;
-
- if (ssl->suites == NULL)
- return SUITES_ERROR;
- /* start with best, if a match we are good */
- for (i = 0; i < ssl->suites->suiteSz; i += 2)
- for (j = 0; j < peerSuites->suiteSz; j += 2)
- if (ssl->suites->suites[i] == peerSuites->suites[j] &&
- ssl->suites->suites[i+1] == peerSuites->suites[j+1] ) {
-
- if (VerifyServerSuite(ssl, i)) {
- int result;
- CYASSL_MSG("Verified suite validity");
- ssl->options.cipherSuite0 = ssl->suites->suites[i];
- ssl->options.cipherSuite = ssl->suites->suites[i+1];
- result = SetCipherSpecs(ssl);
- if (result == 0)
- PickHashSigAlgo(ssl, peerSuites->hashSigAlgo,
- peerSuites->hashSigAlgoSz);
- return result;
- }
- else {
- CYASSL_MSG("Could not verify suite validity, continue");
- }
- }
-
- return MATCH_SUITE_ERROR;
- }
-
-
- /* process old style client hello, deprecate? */
- int ProcessOldClientHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
- word32 inSz, word16 sz)
- {
- word32 idx = *inOutIdx;
- word16 sessionSz;
- word16 randomSz;
- word16 i, j;
- ProtocolVersion pv;
- Suites clSuites;
-
- (void)inSz;
- CYASSL_MSG("Got old format client hello");
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ClientHello", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("ClientHello", &ssl->timeoutInfo);
-#endif
-
- /* manually hash input since different format */
-#ifndef NO_OLD_TLS
-#ifndef NO_MD5
- Md5Update(&ssl->hashMd5, input + idx, sz);
-#endif
-#ifndef NO_SHA
- ShaUpdate(&ssl->hashSha, input + idx, sz);
-#endif
-#endif
-#ifndef NO_SHA256
- if (IsAtLeastTLSv1_2(ssl)) {
- int shaRet = Sha256Update(&ssl->hashSha256, input + idx, sz);
-
- if (shaRet != 0)
- return shaRet;
- }
-#endif
-
- /* does this value mean client_hello? */
- idx++;
-
- /* version */
- pv.major = input[idx++];
- pv.minor = input[idx++];
- ssl->chVersion = pv; /* store */
-
- if (ssl->version.minor > pv.minor) {
- byte haveRSA = 0;
- byte havePSK = 0;
- if (!ssl->options.downgrade) {
- CYASSL_MSG("Client trying to connect with lesser version");
- return VERSION_ERROR;
- }
- if (pv.minor == SSLv3_MINOR) {
- /* turn off tls */
- CYASSL_MSG(" downgrading to SSLv3");
- ssl->options.tls = 0;
- ssl->options.tls1_1 = 0;
- ssl->version.minor = SSLv3_MINOR;
- }
- else if (pv.minor == TLSv1_MINOR) {
- CYASSL_MSG(" downgrading to TLSv1");
- /* turn off tls 1.1+ */
- ssl->options.tls1_1 = 0;
- ssl->version.minor = TLSv1_MINOR;
- }
- else if (pv.minor == TLSv1_1_MINOR) {
- CYASSL_MSG(" downgrading to TLSv1.1");
- ssl->version.minor = TLSv1_1_MINOR;
- }
-#ifndef NO_RSA
- haveRSA = 1;
-#endif
-#ifndef NO_PSK
- havePSK = ssl->options.havePSK;
-#endif
-
- InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
- ssl->options.haveDH, ssl->options.haveNTRU,
- ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
- ssl->options.side);
- }
-
- /* suite size */
- ato16(&input[idx], &clSuites.suiteSz);
- idx += 2;
-
- if (clSuites.suiteSz > MAX_SUITE_SZ)
- return BUFFER_ERROR;
- clSuites.hashSigAlgoSz = 0;
-
- /* session size */
- ato16(&input[idx], &sessionSz);
- idx += 2;
-
- if (sessionSz > ID_LEN)
- return BUFFER_ERROR;
-
- /* random size */
- ato16(&input[idx], &randomSz);
- idx += 2;
-
- if (randomSz > RAN_LEN)
- return BUFFER_ERROR;
-
- /* suites */
- for (i = 0, j = 0; i < clSuites.suiteSz; i += 3) {
- byte first = input[idx++];
- if (!first) { /* implicit: skip sslv2 type */
- XMEMCPY(&clSuites.suites[j], &input[idx], 2);
- j += 2;
- }
- idx += 2;
- }
- clSuites.suiteSz = j;
-
- /* session id */
- if (sessionSz) {
- XMEMCPY(ssl->arrays->sessionID, input + idx, sessionSz);
- idx += sessionSz;
- ssl->options.resuming = 1;
- }
-
- /* random */
- if (randomSz < RAN_LEN)
- XMEMSET(ssl->arrays->clientRandom, 0, RAN_LEN - randomSz);
- XMEMCPY(&ssl->arrays->clientRandom[RAN_LEN - randomSz], input + idx,
- randomSz);
- idx += randomSz;
-
- if (ssl->options.usingCompression)
- ssl->options.usingCompression = 0; /* turn off */
-
- ssl->options.clientState = CLIENT_HELLO_COMPLETE;
- *inOutIdx = idx;
-
- ssl->options.haveSessionId = 1;
- /* DoClientHello uses same resume code */
- if (ssl->options.resuming) { /* let's try */
- int ret = -1;
- CYASSL_SESSION* session = GetSession(ssl,ssl->arrays->masterSecret);
- if (!session) {
- CYASSL_MSG("Session lookup for resume failed");
- ssl->options.resuming = 0;
- } else {
- if (MatchSuite(ssl, &clSuites) < 0) {
- CYASSL_MSG("Unsupported cipher suite, OldClientHello");
- return UNSUPPORTED_SUITE;
- }
- #ifdef SESSION_CERTS
- ssl->session = *session; /* restore session certs. */
- #endif
-
- ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
- RAN_LEN);
- if (ret != 0)
- return ret;
-
- #ifdef NO_OLD_TLS
- ret = DeriveTlsKeys(ssl);
- #else
- #ifndef NO_TLS
- if (ssl->options.tls)
- ret = DeriveTlsKeys(ssl);
- #endif
- if (!ssl->options.tls)
- ret = DeriveKeys(ssl);
- #endif
- ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
-
- return ret;
- }
- }
-
- return MatchSuite(ssl, &clSuites);
- }
-
-
- static int DoClientHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
- word32 helloSz)
- {
- byte b;
- ProtocolVersion pv;
- Suites clSuites;
- word32 i = *inOutIdx;
- word32 begin = i;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn) AddPacketName("ClientHello", &ssl->handShakeInfo);
- if (ssl->toInfoOn) AddLateName("ClientHello", &ssl->timeoutInfo);
-#endif
-
- /* protocol version, random and session id length check */
- if ((i - begin) + OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz)
- return BUFFER_ERROR;
-
- /* protocol version */
- XMEMCPY(&pv, input + i, OPAQUE16_LEN);
- ssl->chVersion = pv; /* store */
- i += OPAQUE16_LEN;
-
- if (ssl->version.minor > pv.minor) {
- byte haveRSA = 0;
- byte havePSK = 0;
-
- if (!ssl->options.downgrade) {
- CYASSL_MSG("Client trying to connect with lesser version");
- return VERSION_ERROR;
- }
-
- if (pv.minor == SSLv3_MINOR) {
- /* turn off tls */
- CYASSL_MSG(" downgrading to SSLv3");
- ssl->options.tls = 0;
- ssl->options.tls1_1 = 0;
- ssl->version.minor = SSLv3_MINOR;
- }
- else if (pv.minor == TLSv1_MINOR) {
- /* turn off tls 1.1+ */
- CYASSL_MSG(" downgrading to TLSv1");
- ssl->options.tls1_1 = 0;
- ssl->version.minor = TLSv1_MINOR;
- }
- else if (pv.minor == TLSv1_1_MINOR) {
- CYASSL_MSG(" downgrading to TLSv1.1");
- ssl->version.minor = TLSv1_1_MINOR;
- }
-#ifndef NO_RSA
- haveRSA = 1;
-#endif
-#ifndef NO_PSK
- havePSK = ssl->options.havePSK;
-#endif
- InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
- ssl->options.haveDH, ssl->options.haveNTRU,
- ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
- ssl->options.side);
- }
-
- /* random */
- XMEMCPY(ssl->arrays->clientRandom, input + i, RAN_LEN);
- i += RAN_LEN;
-
-#ifdef SHOW_SECRETS
- {
- int j;
- printf("client random: ");
- for (j = 0; j < RAN_LEN; j++)
- printf("%02x", ssl->arrays->clientRandom[j]);
- printf("\n");
- }
-#endif
-
- /* session id */
- b = input[i++];
-
- if (b == ID_LEN) {
- if ((i - begin) + ID_LEN > helloSz)
- return BUFFER_ERROR;
-
- XMEMCPY(ssl->arrays->sessionID, input + i, ID_LEN);
- i += ID_LEN;
- ssl->options.resuming = 1; /* client wants to resume */
- CYASSL_MSG("Client wants to resume session");
- }
- else if (b) {
- CYASSL_MSG("Invalid session ID size");
- return BUFFER_ERROR; /* session ID nor 0 neither 32 bytes long */
- }
-
- #ifdef CYASSL_DTLS
- /* cookie */
- if (ssl->options.dtls) {
-
- if ((i - begin) + OPAQUE8_LEN > helloSz)
- return BUFFER_ERROR;
-
- b = input[i++];
-
- if (b) {
- byte cookie[MAX_COOKIE_LEN];
-
- if (b > MAX_COOKIE_LEN)
- return BUFFER_ERROR;
-
- if ((i - begin) + b > helloSz)
- return BUFFER_ERROR;
-
- if (ssl->ctx->CBIOCookie == NULL) {
- CYASSL_MSG("Your Cookie callback is null, please set");
- return COOKIE_ERROR;
- }
-
- if ((ssl->ctx->CBIOCookie(ssl, cookie, COOKIE_SZ,
- ssl->IOCB_CookieCtx) != COOKIE_SZ)
- || (b != COOKIE_SZ)
- || (XMEMCMP(cookie, input + i, b) != 0)) {
- return COOKIE_ERROR;
- }
-
- i += b;
- }
- }
- #endif
-
- /* suites */
- if ((i - begin) + OPAQUE16_LEN > helloSz)
- return BUFFER_ERROR;
-
- ato16(&input[i], &clSuites.suiteSz);
- i += OPAQUE16_LEN;
-
- /* suites and compression length check */
- if ((i - begin) + clSuites.suiteSz + OPAQUE8_LEN > helloSz)
- return BUFFER_ERROR;
-
- if (clSuites.suiteSz > MAX_SUITE_SZ)
- return BUFFER_ERROR;
-
- XMEMCPY(clSuites.suites, input + i, clSuites.suiteSz);
- i += clSuites.suiteSz;
- clSuites.hashSigAlgoSz = 0;
-
- /* compression length */
- b = input[i++];
-
- if ((i - begin) + b > helloSz)
- return BUFFER_ERROR;
-
- if (ssl->options.usingCompression) {
- int match = 0;
-
- while (b--) {
- byte comp = input[i++];
-
- if (comp == ZLIB_COMPRESSION)
- match = 1;
- }
-
- if (!match) {
- CYASSL_MSG("Not matching compression, turning off");
- ssl->options.usingCompression = 0; /* turn off */
- }
- }
- else
- i += b; /* ignore, since we're not on */
-
- *inOutIdx = i;
-
- /* tls extensions */
- if ((i - begin) < helloSz) {
-#ifdef HAVE_TLS_EXTENSIONS
- if (IsTLS(ssl)) {
- int ret = 0;
-#else
- if (IsAtLeastTLSv1_2(ssl)) {
-#endif
- /* Process the hello extension. Skip unsupported. */
- word16 totalExtSz;
-
- if ((i - begin) + OPAQUE16_LEN > helloSz)
- return BUFFER_ERROR;
-
- ato16(&input[i], &totalExtSz);
- i += OPAQUE16_LEN;
-
- if ((i - begin) + totalExtSz > helloSz)
- return BUFFER_ERROR;
-
-#ifdef HAVE_TLS_EXTENSIONS
- if ((ret = TLSX_Parse(ssl, (byte *) input + i,
- totalExtSz, 1, &clSuites)))
- return ret;
-
- i += totalExtSz;
-#else
- while (totalExtSz) {
- word16 extId, extSz;
-
- if (OPAQUE16_LEN + OPAQUE16_LEN > totalExtSz)
- return BUFFER_ERROR;
-
- ato16(&input[i], &extId);
- i += OPAQUE16_LEN;
- ato16(&input[i], &extSz);
- i += OPAQUE16_LEN;
-
- if (OPAQUE16_LEN + OPAQUE16_LEN + extSz > totalExtSz)
- return BUFFER_ERROR;
-
- if (extId == HELLO_EXT_SIG_ALGO) {
- ato16(&input[i], &clSuites.hashSigAlgoSz);
- i += OPAQUE16_LEN;
-
- if (OPAQUE16_LEN + clSuites.hashSigAlgoSz > extSz)
- return BUFFER_ERROR;
-
- XMEMCPY(clSuites.hashSigAlgo, &input[i],
- min(clSuites.hashSigAlgoSz, HELLO_EXT_SIGALGO_MAX));
- i += clSuites.hashSigAlgoSz;
- }
- else
- i += extSz;
-
- totalExtSz -= OPAQUE16_LEN + OPAQUE16_LEN + extSz;
- }
-#endif
- *inOutIdx = i;
- }
- else
- *inOutIdx = begin + helloSz; /* skip extensions */
- }
-
- ssl->options.clientState = CLIENT_HELLO_COMPLETE;
- ssl->options.haveSessionId = 1;
-
- /* ProcessOld uses same resume code */
- if (ssl->options.resuming && (!ssl->options.dtls ||
- ssl->options.acceptState == HELLO_VERIFY_SENT)) { /* let's try */
- int ret = -1;
- CYASSL_SESSION* session = GetSession(ssl,ssl->arrays->masterSecret);
-
- if (!session) {
- CYASSL_MSG("Session lookup for resume failed");
- ssl->options.resuming = 0;
- }
- else {
- if (MatchSuite(ssl, &clSuites) < 0) {
- CYASSL_MSG("Unsupported cipher suite, ClientHello");
- return UNSUPPORTED_SUITE;
- }
- #ifdef SESSION_CERTS
- ssl->session = *session; /* restore session certs. */
- #endif
-
- ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
- RAN_LEN);
- if (ret != 0)
- return ret;
-
- #ifdef NO_OLD_TLS
- ret = DeriveTlsKeys(ssl);
- #else
- #ifndef NO_TLS
- if (ssl->options.tls)
- ret = DeriveTlsKeys(ssl);
- #endif
- if (!ssl->options.tls)
- ret = DeriveKeys(ssl);
- #endif
- ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
-
- return ret;
- }
- }
- return MatchSuite(ssl, &clSuites);
- }
-
-#if !defined(NO_RSA) || defined(HAVE_ECC)
- static int DoCertificateVerify(CYASSL* ssl, byte* input, word32* inOutIdx,
- word32 size)
- {
- word16 sz = 0;
- int ret = VERIFY_CERT_ERROR; /* start in error state */
- byte hashAlgo = sha_mac;
- byte sigAlgo = anonymous_sa_algo;
- word32 begin = *inOutIdx;
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("CertificateVerify", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("CertificateVerify", &ssl->timeoutInfo);
- #endif
-
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if ((*inOutIdx - begin) + ENUM_LEN + ENUM_LEN > size)
- return BUFFER_ERROR;
-
- hashAlgo = input[(*inOutIdx)++];
- sigAlgo = input[(*inOutIdx)++];
- }
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &sz);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + sz > size || sz > ENCRYPT_LEN)
- return BUFFER_ERROR;
-
- /* RSA */
-#ifndef NO_RSA
- if (ssl->peerRsaKeyPresent != 0) {
- byte* out = NULL;
- int outLen = 0;
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaVerifyCb)
- doUserRsa = 1;
- #endif /*HAVE_PK_CALLBACKS */
-
- CYASSL_MSG("Doing RSA peer cert verify");
-
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- outLen = ssl->ctx->RsaVerifyCb(ssl, input + *inOutIdx, sz,
- &out,
- ssl->buffers.peerRsaKey.buffer,
- ssl->buffers.peerRsaKey.length,
- ssl->RsaVerifyCtx);
- #endif /*HAVE_PK_CALLBACKS */
- }
- else {
- outLen = RsaSSL_VerifyInline(input + *inOutIdx, sz, &out,
- ssl->peerRsaKey);
- }
-
- if (IsAtLeastTLSv1_2(ssl)) {
- byte encodedSig[MAX_ENCODED_SIG_SZ];
- word32 sigSz;
- byte* digest = ssl->certHashes.sha;
- int typeH = SHAh;
- int digestSz = SHA_DIGEST_SIZE;
-
- if (sigAlgo != rsa_sa_algo) {
- CYASSL_MSG("Oops, peer sent RSA key but not in verify");
- }
-
- if (hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = ssl->certHashes.sha256;
- typeH = SHA256h;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = ssl->certHashes.sha384;
- typeH = SHA384h;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
-
- sigSz = EncodeSignature(encodedSig, digest, digestSz, typeH);
-
- if (outLen == (int)sigSz && out && XMEMCMP(out, encodedSig,
- min(sigSz, MAX_ENCODED_SIG_SZ)) == 0)
- ret = 0; /* verified */
- }
- else {
- if (outLen == FINISHED_SZ && out && XMEMCMP(out,
- &ssl->certHashes, FINISHED_SZ) == 0)
- ret = 0; /* verified */
- }
- }
-#endif
-#ifdef HAVE_ECC
- if (ssl->peerEccDsaKeyPresent) {
- int verify = 0;
- int err = -1;
- byte* digest = ssl->certHashes.sha;
- word32 digestSz = SHA_DIGEST_SIZE;
- byte doUserEcc = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->EccVerifyCb)
- doUserEcc = 1;
- #endif
-
- CYASSL_MSG("Doing ECC peer cert verify");
-
- if (IsAtLeastTLSv1_2(ssl)) {
- if (sigAlgo != ecc_dsa_sa_algo) {
- CYASSL_MSG("Oops, peer sent ECC key but not in verify");
- }
-
- if (hashAlgo == sha256_mac) {
- #ifndef NO_SHA256
- digest = ssl->certHashes.sha256;
- digestSz = SHA256_DIGEST_SIZE;
- #endif
- }
- else if (hashAlgo == sha384_mac) {
- #ifdef CYASSL_SHA384
- digest = ssl->certHashes.sha384;
- digestSz = SHA384_DIGEST_SIZE;
- #endif
- }
- }
-
- if (doUserEcc) {
- #ifdef HAVE_PK_CALLBACKS
- ret = ssl->ctx->EccVerifyCb(ssl, input + *inOutIdx, sz, digest,
- digestSz,
- ssl->buffers.peerEccDsaKey.buffer,
- ssl->buffers.peerEccDsaKey.length,
- &verify, ssl->EccVerifyCtx);
- #endif
- }
- else {
- err = ecc_verify_hash(input + *inOutIdx, sz, digest, digestSz,
- &verify, ssl->peerEccDsaKey);
- }
-
- if (err == 0 && verify == 1)
- ret = 0; /* verified */
- }
-#endif
- *inOutIdx += sz;
-
- if (ret == 0)
- ssl->options.havePeerVerify = 1;
-
- return ret;
- }
-#endif /* !NO_RSA || HAVE_ECC */
-
- int SendServerHelloDone(CYASSL* ssl)
- {
- byte *output;
- int sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
- int ret;
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls)
- sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
- #endif
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, 0, server_hello_done, ssl);
-
- #ifdef CYASSL_DTLS
- if (ssl->options.dtls) {
- if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
- return 0;
- }
- #endif
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ServerHelloDone", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("ServerHelloDone", &ssl->timeoutInfo, output, sendSz,
- ssl->heap);
-#endif
- ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- return SendBuffered(ssl);
- }
-
-#ifdef CYASSL_DTLS
- int SendHelloVerifyRequest(CYASSL* ssl)
- {
- byte* output;
- byte cookieSz = COOKIE_SZ;
- int length = VERSION_SZ + ENUM_LEN + cookieSz;
- int idx = DTLS_RECORD_HEADER_SZ + DTLS_HANDSHAKE_HEADER_SZ;
- int sendSz = length + idx;
- int ret;
-
- /* check for available size */
- if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
- return ret;
-
- /* get ouput buffer */
- output = ssl->buffers.outputBuffer.buffer +
- ssl->buffers.outputBuffer.length;
-
- AddHeaders(output, length, hello_verify_request, ssl);
-
- output[idx++] = ssl->chVersion.major;
- output[idx++] = ssl->chVersion.minor;
-
- output[idx++] = cookieSz;
- if (ssl->ctx->CBIOCookie == NULL) {
- CYASSL_MSG("Your Cookie callback is null, please set");
- return COOKIE_ERROR;
- }
- if ((ret = ssl->ctx->CBIOCookie(ssl, output + idx, cookieSz,
- ssl->IOCB_CookieCtx)) < 0)
- return ret;
-
- ret = HashOutput(ssl, output, sendSz, 0);
- if (ret != 0)
- return ret;
-
-#ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("HelloVerifyRequest", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddPacketInfo("HelloVerifyRequest", &ssl->timeoutInfo, output,
- sendSz, ssl->heap);
-#endif
- ssl->options.serverState = SERVER_HELLOVERIFYREQUEST_COMPLETE;
-
- ssl->buffers.outputBuffer.length += sendSz;
-
- return SendBuffered(ssl);
- }
-#endif
-
- static int DoClientKeyExchange(CYASSL* ssl, byte* input, word32* inOutIdx,
- word32 size)
- {
- int ret = 0;
- word32 length = 0;
- byte* out = NULL;
- word32 begin = *inOutIdx;
-
- (void)length; /* shut up compiler warnings */
- (void)out;
- (void)input;
- (void)size;
-
- if (ssl->options.side != CYASSL_SERVER_END) {
- CYASSL_MSG("Client received client keyexchange, attack?");
- CYASSL_ERROR(ssl->error = SIDE_ERROR);
- return SSL_FATAL_ERROR;
- }
-
- if (ssl->options.clientState < CLIENT_HELLO_COMPLETE) {
- CYASSL_MSG("Client sending keyexchange at wrong time");
- SendAlert(ssl, alert_fatal, unexpected_message);
- return OUT_OF_ORDER_E;
- }
-
- #ifndef NO_CERTS
- if (ssl->options.verifyPeer && ssl->options.failNoCert)
- if (!ssl->options.havePeerCert) {
- CYASSL_MSG("client didn't present peer cert");
- return NO_PEER_CERT;
- }
- #endif
-
- #ifdef CYASSL_CALLBACKS
- if (ssl->hsInfoOn)
- AddPacketName("ClientKeyExchange", &ssl->handShakeInfo);
- if (ssl->toInfoOn)
- AddLateName("ClientKeyExchange", &ssl->timeoutInfo);
- #endif
-
- switch (ssl->specs.kea) {
- #ifndef NO_RSA
- case rsa_kea:
- {
- word32 idx = 0;
- RsaKey key;
- byte doUserRsa = 0;
-
- #ifdef HAVE_PK_CALLBACKS
- if (ssl->ctx->RsaDecCb)
- doUserRsa = 1;
- #endif
-
- ret = InitRsaKey(&key, ssl->heap);
- if (ret != 0) return ret;
-
- if (ssl->buffers.key.buffer)
- ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &idx,
- &key, ssl->buffers.key.length);
- else
- return NO_PRIVATE_KEY;
-
- if (ret == 0) {
- length = RsaEncryptSize(&key);
- ssl->arrays->preMasterSz = SECRET_LEN;
-
- if (ssl->options.tls) {
- word16 check;
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &check);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((word32) check != length) {
- CYASSL_MSG("RSA explicit size doesn't match");
- FreeRsaKey(&key);
- return RSA_PRIVATE_ERROR;
- }
- }
-
- if ((*inOutIdx - begin) + length > size) {
- CYASSL_MSG("RSA message too big");
- FreeRsaKey(&key);
- return BUFFER_ERROR;
- }
-
- if (doUserRsa) {
- #ifdef HAVE_PK_CALLBACKS
- ret = ssl->ctx->RsaDecCb(ssl,
- input + *inOutIdx, length, &out,
- ssl->buffers.key.buffer,
- ssl->buffers.key.length,
- ssl->RsaDecCtx);
- #endif
- }
- else {
- ret = RsaPrivateDecryptInline(input + *inOutIdx, length,
- &out, &key);
- }
-
- *inOutIdx += length;
-
- if (ret == SECRET_LEN) {
- XMEMCPY(ssl->arrays->preMasterSecret, out, SECRET_LEN);
- if (ssl->arrays->preMasterSecret[0] !=
- ssl->chVersion.major
- || ssl->arrays->preMasterSecret[1] !=
- ssl->chVersion.minor)
- ret = PMS_VERSION_ERROR;
- else
- ret = MakeMasterSecret(ssl);
- }
- else {
- ret = RSA_PRIVATE_ERROR;
- }
- }
-
- FreeRsaKey(&key);
- }
- break;
- #endif
- #ifndef NO_PSK
- case psk_kea:
- {
- byte* pms = ssl->arrays->preMasterSecret;
- word16 ci_sz;
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &ci_sz);
- *inOutIdx += OPAQUE16_LEN;
-
- if (ci_sz > MAX_PSK_ID_LEN)
- return CLIENT_ID_ERROR;
-
- if ((*inOutIdx - begin) + ci_sz > size)
- return BUFFER_ERROR;
-
- XMEMCPY(ssl->arrays->client_identity, input + *inOutIdx, ci_sz);
- *inOutIdx += ci_sz;
-
- ssl->arrays->client_identity[min(ci_sz, MAX_PSK_ID_LEN-1)] = 0;
- ssl->arrays->psk_keySz = ssl->options.server_psk_cb(ssl,
- ssl->arrays->client_identity, ssl->arrays->psk_key,
- MAX_PSK_KEY_LEN);
-
- if (ssl->arrays->psk_keySz == 0 ||
- ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN)
- return PSK_KEY_ERROR;
-
- /* make psk pre master secret */
- /* length of key + length 0s + length of key + key */
- c16toa((word16) ssl->arrays->psk_keySz, pms);
- pms += OPAQUE16_LEN;
-
- XMEMSET(pms, 0, ssl->arrays->psk_keySz);
- pms += ssl->arrays->psk_keySz;
-
- c16toa((word16) ssl->arrays->psk_keySz, pms);
- pms += OPAQUE16_LEN;
-
- XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz);
- ssl->arrays->preMasterSz = ssl->arrays->psk_keySz * 2 + 4;
-
- ret = MakeMasterSecret(ssl);
-
- /* No further need for PSK */
- XMEMSET(ssl->arrays->psk_key, 0, ssl->arrays->psk_keySz);
- ssl->arrays->psk_keySz = 0;
- }
- break;
- #endif /* NO_PSK */
- #ifdef HAVE_NTRU
- case ntru_kea:
- {
- word16 cipherLen;
- word16 plainLen = sizeof(ssl->arrays->preMasterSecret);
-
- if (!ssl->buffers.key.buffer)
- return NO_PRIVATE_KEY;
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &cipherLen);
- *inOutIdx += OPAQUE16_LEN;
-
- if (cipherLen > MAX_NTRU_ENCRYPT_SZ)
- return NTRU_KEY_ERROR;
-
- if ((*inOutIdx - begin) + cipherLen > size)
- return BUFFER_ERROR;
-
- if (NTRU_OK != crypto_ntru_decrypt(
- (word16) ssl->buffers.key.length,
- ssl->buffers.key.buffer, cipherLen,
- input + *inOutIdx, &plainLen,
- ssl->arrays->preMasterSecret))
- return NTRU_DECRYPT_ERROR;
-
- if (plainLen != SECRET_LEN)
- return NTRU_DECRYPT_ERROR;
-
- *inOutIdx += cipherLen;
-
- ssl->arrays->preMasterSz = plainLen;
- ret = MakeMasterSecret(ssl);
- }
- break;
- #endif /* HAVE_NTRU */
- #ifdef HAVE_ECC
- case ecc_diffie_hellman_kea:
- {
- if ((*inOutIdx - begin) + OPAQUE8_LEN > size)
- return BUFFER_ERROR;
-
- length = input[(*inOutIdx)++];
-
- if ((*inOutIdx - begin) + length > size)
- return BUFFER_ERROR;
-
- if (ecc_import_x963(input + *inOutIdx, length, ssl->peerEccKey))
- return ECC_PEERKEY_ERROR;
-
- *inOutIdx += length;
- ssl->peerEccKeyPresent = 1;
-
- length = sizeof(ssl->arrays->preMasterSecret);
-
- if (ssl->specs.static_ecdh) {
- ecc_key staticKey;
- word32 i = 0;
-
- ecc_init(&staticKey);
- ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &i,
- &staticKey, ssl->buffers.key.length);
-
- if (ret == 0)
- ret = ecc_shared_secret(&staticKey, ssl->peerEccKey,
- ssl->arrays->preMasterSecret, &length);
-
- ecc_free(&staticKey);
- }
- else
- ret = ecc_shared_secret(ssl->eccTempKey, ssl->peerEccKey,
- ssl->arrays->preMasterSecret, &length);
-
- if (ret != 0)
- return ECC_SHARED_ERROR;
-
- ssl->arrays->preMasterSz = length;
- ret = MakeMasterSecret(ssl);
- }
- break;
- #endif /* HAVE_ECC */
- #ifdef OPENSSL_EXTRA
- case diffie_hellman_kea:
- {
- word16 clientPubSz;
- DhKey dhKey;
-
- if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
- return BUFFER_ERROR;
-
- ato16(input + *inOutIdx, &clientPubSz);
- *inOutIdx += OPAQUE16_LEN;
-
- if ((*inOutIdx - begin) + clientPubSz > size)
- return BUFFER_ERROR;
-
- InitDhKey(&dhKey);
- ret = DhSetKey(&dhKey, ssl->buffers.serverDH_P.buffer,
- ssl->buffers.serverDH_P.length,
- ssl->buffers.serverDH_G.buffer,
- ssl->buffers.serverDH_G.length);
- if (ret == 0)
- ret = DhAgree(&dhKey, ssl->arrays->preMasterSecret,
- &ssl->arrays->preMasterSz,
- ssl->buffers.serverDH_Priv.buffer,
- ssl->buffers.serverDH_Priv.length,
- input + *inOutIdx, clientPubSz);
- FreeDhKey(&dhKey);
-
- *inOutIdx += clientPubSz;
-
- if (ret == 0)
- ret = MakeMasterSecret(ssl);
- }
- break;
- #endif /* OPENSSL_EXTRA */
- default:
- {
- CYASSL_MSG("Bad kea type");
- ret = BAD_KEA_TYPE_E;
- }
- break;
- }
-
- /* No further need for PMS */
- XMEMSET(ssl->arrays->preMasterSecret, 0, ssl->arrays->preMasterSz);
- ssl->arrays->preMasterSz = 0;
-
- if (ret == 0) {
- ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
- #ifndef NO_CERTS
- if (ssl->options.verifyPeer)
- ret = BuildCertHashes(ssl, &ssl->certHashes);
- #endif
- }
-
- return ret;
- }
-
-#endif /* NO_CYASSL_SERVER */
-
+/* internal.c
+ *
+ * Copyright (C) 2006-2014 wolfSSL Inc.
+ *
+ * This file is part of CyaSSL.
+ *
+ * CyaSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * CyaSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
+
+#include <cyassl/ctaocrypt/settings.h>
+
+#include <cyassl/internal.h>
+#include <cyassl/error-ssl.h>
+#include <cyassl/ctaocrypt/asn.h>
+
+#ifdef HAVE_LIBZ
+ #include "zlib.h"
+#endif
+
+#ifdef HAVE_NTRU
+ #include "crypto_ntru.h"
+#endif
+
+#if defined(DEBUG_CYASSL) || defined(SHOW_SECRETS)
+ #ifdef FREESCALE_MQX
+ #include <fio.h>
+ #else
+ #include <stdio.h>
+ #endif
+#endif
+
+#ifdef __sun
+ #include <sys/filio.h>
+#endif
+
+#ifndef TRUE
+ #define TRUE 1
+#endif
+#ifndef FALSE
+ #define FALSE 0
+#endif
+
+
+#if defined(OPENSSL_EXTRA) && defined(NO_DH)
+ #error OPENSSL_EXTRA needs DH, please remove NO_DH
+#endif
+
+#if defined(CYASSL_CALLBACKS) && !defined(LARGE_STATIC_BUFFERS)
+ #error \
+CYASSL_CALLBACKS needs LARGE_STATIC_BUFFERS, please add LARGE_STATIC_BUFFERS
+#endif
+
+
+#ifndef NO_CYASSL_CLIENT
+ static int DoHelloVerifyRequest(CYASSL* ssl, const byte* input, word32*,
+ word32);
+ static int DoServerHello(CYASSL* ssl, const byte* input, word32*, word32);
+ static int DoServerKeyExchange(CYASSL* ssl, const byte* input, word32*,
+ word32);
+ #ifndef NO_CERTS
+ static int DoCertificateRequest(CYASSL* ssl, const byte* input, word32*,
+ word32);
+ #endif
+#endif
+
+
+#ifndef NO_CYASSL_SERVER
+ static int DoClientHello(CYASSL* ssl, const byte* input, word32*, word32);
+ static int DoClientKeyExchange(CYASSL* ssl, byte* input, word32*, word32);
+ #if !defined(NO_RSA) || defined(HAVE_ECC)
+ static int DoCertificateVerify(CYASSL* ssl, byte*, word32*, word32);
+ #endif
+#endif
+
+
+#ifdef CYASSL_DTLS
+ static INLINE int DtlsCheckWindow(DtlsState* state);
+ static INLINE int DtlsUpdateWindow(DtlsState* state);
+#endif
+
+
+typedef enum {
+ doProcessInit = 0,
+#ifndef NO_CYASSL_SERVER
+ runProcessOldClientHello,
+#endif
+ getRecordLayerHeader,
+ getData,
+ runProcessingOneMessage
+} processReply;
+
+#ifndef NO_OLD_TLS
+static int SSL_hmac(CYASSL* ssl, byte* digest, const byte* in, word32 sz,
+ int content, int verify);
+
+#endif
+
+#ifndef NO_CERTS
+static int BuildCertHashes(CYASSL* ssl, Hashes* hashes);
+#endif
+
+static void PickHashSigAlgo(CYASSL* ssl,
+ const byte* hashSigAlgo, word32 hashSigAlgoSz);
+
+#ifndef min
+
+ static INLINE word32 min(word32 a, word32 b)
+ {
+ return a > b ? b : a;
+ }
+
+#endif /* min */
+
+
+int IsTLS(const CYASSL* ssl)
+{
+ if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_MINOR)
+ return 1;
+
+ return 0;
+}
+
+
+int IsAtLeastTLSv1_2(const CYASSL* ssl)
+{
+ if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_2_MINOR)
+ return 1;
+ if (ssl->version.major == DTLS_MAJOR && ssl->version.minor <= DTLSv1_2_MINOR)
+ return 1;
+
+ return 0;
+}
+
+
+#ifdef HAVE_NTRU
+
+static byte GetEntropy(ENTROPY_CMD cmd, byte* out)
+{
+ /* TODO: add locking? */
+ static RNG rng;
+
+ if (cmd == INIT)
+ return (InitRng(&rng) == 0) ? 1 : 0;
+
+ if (out == NULL)
+ return 0;
+
+ if (cmd == GET_BYTE_OF_ENTROPY)
+ return (RNG_GenerateBlock(&rng, out, 1) == 0) ? 1 : 0;
+
+ if (cmd == GET_NUM_BYTES_PER_BYTE_OF_ENTROPY) {
+ *out = 1;
+ return 1;
+ }
+
+ return 0;
+}
+
+#endif /* HAVE_NTRU */
+
+/* used by ssl.c too */
+void c32to24(word32 in, word24 out)
+{
+ out[0] = (in >> 16) & 0xff;
+ out[1] = (in >> 8) & 0xff;
+ out[2] = in & 0xff;
+}
+
+
+#ifdef CYASSL_DTLS
+
+static INLINE void c32to48(word32 in, byte out[6])
+{
+ out[0] = 0;
+ out[1] = 0;
+ out[2] = (in >> 24) & 0xff;
+ out[3] = (in >> 16) & 0xff;
+ out[4] = (in >> 8) & 0xff;
+ out[5] = in & 0xff;
+}
+
+#endif /* CYASSL_DTLS */
+
+
+/* convert 16 bit integer to opaque */
+static INLINE void c16toa(word16 u16, byte* c)
+{
+ c[0] = (u16 >> 8) & 0xff;
+ c[1] = u16 & 0xff;
+}
+
+
+/* convert 32 bit integer to opaque */
+static INLINE void c32toa(word32 u32, byte* c)
+{
+ c[0] = (u32 >> 24) & 0xff;
+ c[1] = (u32 >> 16) & 0xff;
+ c[2] = (u32 >> 8) & 0xff;
+ c[3] = u32 & 0xff;
+}
+
+
+/* convert a 24 bit integer into a 32 bit one */
+static INLINE void c24to32(const word24 u24, word32* u32)
+{
+ *u32 = (u24[0] << 16) | (u24[1] << 8) | u24[2];
+}
+
+
+/* convert opaque to 16 bit integer */
+static INLINE void ato16(const byte* c, word16* u16)
+{
+ *u16 = (word16) ((c[0] << 8) | (c[1]));
+}
+
+
+#ifdef CYASSL_DTLS
+
+/* convert opaque to 32 bit integer */
+static INLINE void ato32(const byte* c, word32* u32)
+{
+ *u32 = (c[0] << 24) | (c[1] << 16) | (c[2] << 8) | c[3];
+}
+
+#endif /* CYASSL_DTLS */
+
+
+#ifdef HAVE_LIBZ
+
+ /* alloc user allocs to work with zlib */
+ static void* myAlloc(void* opaque, unsigned int item, unsigned int size)
+ {
+ (void)opaque;
+ return XMALLOC(item * size, opaque, DYNAMIC_TYPE_LIBZ);
+ }
+
+
+ static void myFree(void* opaque, void* memory)
+ {
+ (void)opaque;
+ XFREE(memory, opaque, DYNAMIC_TYPE_LIBZ);
+ }
+
+
+ /* init zlib comp/decomp streams, 0 on success */
+ static int InitStreams(CYASSL* ssl)
+ {
+ ssl->c_stream.zalloc = (alloc_func)myAlloc;
+ ssl->c_stream.zfree = (free_func)myFree;
+ ssl->c_stream.opaque = (voidpf)ssl->heap;
+
+ if (deflateInit(&ssl->c_stream, Z_DEFAULT_COMPRESSION) != Z_OK)
+ return ZLIB_INIT_ERROR;
+
+ ssl->didStreamInit = 1;
+
+ ssl->d_stream.zalloc = (alloc_func)myAlloc;
+ ssl->d_stream.zfree = (free_func)myFree;
+ ssl->d_stream.opaque = (voidpf)ssl->heap;
+
+ if (inflateInit(&ssl->d_stream) != Z_OK) return ZLIB_INIT_ERROR;
+
+ return 0;
+ }
+
+
+ static void FreeStreams(CYASSL* ssl)
+ {
+ if (ssl->didStreamInit) {
+ deflateEnd(&ssl->c_stream);
+ inflateEnd(&ssl->d_stream);
+ }
+ }
+
+
+ /* compress in to out, return out size or error */
+ static int myCompress(CYASSL* ssl, byte* in, int inSz, byte* out, int outSz)
+ {
+ int err;
+ int currTotal = (int)ssl->c_stream.total_out;
+
+ ssl->c_stream.next_in = in;
+ ssl->c_stream.avail_in = inSz;
+ ssl->c_stream.next_out = out;
+ ssl->c_stream.avail_out = outSz;
+
+ err = deflate(&ssl->c_stream, Z_SYNC_FLUSH);
+ if (err != Z_OK && err != Z_STREAM_END) return ZLIB_COMPRESS_ERROR;
+
+ return (int)ssl->c_stream.total_out - currTotal;
+ }
+
+
+ /* decompress in to out, returnn out size or error */
+ static int myDeCompress(CYASSL* ssl, byte* in,int inSz, byte* out,int outSz)
+ {
+ int err;
+ int currTotal = (int)ssl->d_stream.total_out;
+
+ ssl->d_stream.next_in = in;
+ ssl->d_stream.avail_in = inSz;
+ ssl->d_stream.next_out = out;
+ ssl->d_stream.avail_out = outSz;
+
+ err = inflate(&ssl->d_stream, Z_SYNC_FLUSH);
+ if (err != Z_OK && err != Z_STREAM_END) return ZLIB_DECOMPRESS_ERROR;
+
+ return (int)ssl->d_stream.total_out - currTotal;
+ }
+
+#endif /* HAVE_LIBZ */
+
+
+void InitSSL_Method(CYASSL_METHOD* method, ProtocolVersion pv)
+{
+ method->version = pv;
+ method->side = CYASSL_CLIENT_END;
+ method->downgrade = 0;
+}
+
+
+/* Initialze SSL context, return 0 on success */
+int InitSSL_Ctx(CYASSL_CTX* ctx, CYASSL_METHOD* method)
+{
+ ctx->method = method;
+ ctx->refCount = 1; /* so either CTX_free or SSL_free can release */
+#ifndef NO_CERTS
+ ctx->certificate.buffer = 0;
+ ctx->certChain.buffer = 0;
+ ctx->privateKey.buffer = 0;
+ ctx->serverDH_P.buffer = 0;
+ ctx->serverDH_G.buffer = 0;
+#endif
+ ctx->haveDH = 0;
+ ctx->haveNTRU = 0; /* start off */
+ ctx->haveECDSAsig = 0; /* start off */
+ ctx->haveStaticECC = 0; /* start off */
+ ctx->heap = ctx; /* defaults to self */
+#ifndef NO_PSK
+ ctx->havePSK = 0;
+ ctx->server_hint[0] = 0;
+ ctx->client_psk_cb = 0;
+ ctx->server_psk_cb = 0;
+#endif /* NO_PSK */
+#ifdef HAVE_ECC
+ ctx->eccTempKeySz = ECDHE_SIZE;
+#endif
+
+#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
+ ctx->passwd_cb = 0;
+ ctx->userdata = 0;
+#endif /* OPENSSL_EXTRA */
+
+ ctx->timeout = DEFAULT_TIMEOUT;
+
+#ifndef CYASSL_USER_IO
+ ctx->CBIORecv = EmbedReceive;
+ ctx->CBIOSend = EmbedSend;
+ #ifdef CYASSL_DTLS
+ if (method->version.major == DTLS_MAJOR) {
+ ctx->CBIORecv = EmbedReceiveFrom;
+ ctx->CBIOSend = EmbedSendTo;
+ ctx->CBIOCookie = EmbedGenerateCookie;
+ }
+ #endif
+#else
+ /* user will set */
+ ctx->CBIORecv = NULL;
+ ctx->CBIOSend = NULL;
+ #ifdef CYASSL_DTLS
+ ctx->CBIOCookie = NULL;
+ #endif
+#endif /* CYASSL_USER_IO */
+#ifdef HAVE_NETX
+ ctx->CBIORecv = NetX_Receive;
+ ctx->CBIOSend = NetX_Send;
+#endif
+ ctx->partialWrite = 0;
+ ctx->verifyCallback = 0;
+
+#ifndef NO_CERTS
+ ctx->cm = CyaSSL_CertManagerNew();
+#endif
+#ifdef HAVE_NTRU
+ if (method->side == CYASSL_CLIENT_END)
+ ctx->haveNTRU = 1; /* always on cliet side */
+ /* server can turn on by loading key */
+#endif
+#ifdef HAVE_ECC
+ if (method->side == CYASSL_CLIENT_END) {
+ ctx->haveECDSAsig = 1; /* always on cliet side */
+ ctx->haveStaticECC = 1; /* server can turn on by loading key */
+ }
+#endif
+ ctx->suites.setSuites = 0; /* user hasn't set yet */
+ /* remove DH later if server didn't set, add psk later */
+ InitSuites(&ctx->suites, method->version, TRUE, FALSE, TRUE, ctx->haveNTRU,
+ ctx->haveECDSAsig, ctx->haveStaticECC, method->side);
+ ctx->verifyPeer = 0;
+ ctx->verifyNone = 0;
+ ctx->failNoCert = 0;
+ ctx->sessionCacheOff = 0; /* initially on */
+ ctx->sessionCacheFlushOff = 0; /* initially on */
+ ctx->sendVerify = 0;
+ ctx->quietShutdown = 0;
+ ctx->groupMessages = 0;
+#ifdef HAVE_CAVIUM
+ ctx->devId = NO_CAVIUM_DEVICE;
+#endif
+#ifdef HAVE_TLS_EXTENSIONS
+ ctx->extensions = NULL;
+#endif
+#ifdef ATOMIC_USER
+ ctx->MacEncryptCb = NULL;
+ ctx->DecryptVerifyCb = NULL;
+#endif
+#ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ctx->EccSignCb = NULL;
+ ctx->EccVerifyCb = NULL;
+ #endif /* HAVE_ECC */
+ #ifndef NO_RSA
+ ctx->RsaSignCb = NULL;
+ ctx->RsaVerifyCb = NULL;
+ ctx->RsaEncCb = NULL;
+ ctx->RsaDecCb = NULL;
+ #endif /* NO_RSA */
+#endif /* HAVE_PK_CALLBACKS */
+
+ if (InitMutex(&ctx->countMutex) < 0) {
+ CYASSL_MSG("Mutex error on CTX init");
+ return BAD_MUTEX_E;
+ }
+#ifndef NO_CERTS
+ if (ctx->cm == NULL) {
+ CYASSL_MSG("Bad Cert Manager New");
+ return BAD_CERT_MANAGER_ERROR;
+ }
+#endif
+ return 0;
+}
+
+
+/* In case contexts are held in array and don't want to free actual ctx */
+void SSL_CtxResourceFree(CYASSL_CTX* ctx)
+{
+ XFREE(ctx->method, ctx->heap, DYNAMIC_TYPE_METHOD);
+
+#ifndef NO_CERTS
+ XFREE(ctx->serverDH_G.buffer, ctx->heap, DYNAMIC_TYPE_DH);
+ XFREE(ctx->serverDH_P.buffer, ctx->heap, DYNAMIC_TYPE_DH);
+ XFREE(ctx->privateKey.buffer, ctx->heap, DYNAMIC_TYPE_KEY);
+ XFREE(ctx->certificate.buffer, ctx->heap, DYNAMIC_TYPE_CERT);
+ XFREE(ctx->certChain.buffer, ctx->heap, DYNAMIC_TYPE_CERT);
+ CyaSSL_CertManagerFree(ctx->cm);
+#endif
+#ifdef HAVE_TLS_EXTENSIONS
+ TLSX_FreeAll(ctx->extensions);
+#endif
+}
+
+
+void FreeSSL_Ctx(CYASSL_CTX* ctx)
+{
+ int doFree = 0;
+
+ if (LockMutex(&ctx->countMutex) != 0) {
+ CYASSL_MSG("Couldn't lock count mutex");
+ return;
+ }
+ ctx->refCount--;
+ if (ctx->refCount == 0)
+ doFree = 1;
+ UnLockMutex(&ctx->countMutex);
+
+ if (doFree) {
+ CYASSL_MSG("CTX ref count down to 0, doing full free");
+ SSL_CtxResourceFree(ctx);
+ FreeMutex(&ctx->countMutex);
+ XFREE(ctx, ctx->heap, DYNAMIC_TYPE_CTX);
+ }
+ else {
+ (void)ctx;
+ CYASSL_MSG("CTX ref count not 0 yet, no free");
+ }
+}
+
+
+/* Set cipher pointers to null */
+void InitCiphers(CYASSL* ssl)
+{
+#ifdef BUILD_ARC4
+ ssl->encrypt.arc4 = NULL;
+ ssl->decrypt.arc4 = NULL;
+#endif
+#ifdef BUILD_DES3
+ ssl->encrypt.des3 = NULL;
+ ssl->decrypt.des3 = NULL;
+#endif
+#ifdef BUILD_AES
+ ssl->encrypt.aes = NULL;
+ ssl->decrypt.aes = NULL;
+#endif
+#ifdef HAVE_CAMELLIA
+ ssl->encrypt.cam = NULL;
+ ssl->decrypt.cam = NULL;
+#endif
+#ifdef HAVE_HC128
+ ssl->encrypt.hc128 = NULL;
+ ssl->decrypt.hc128 = NULL;
+#endif
+#ifdef BUILD_RABBIT
+ ssl->encrypt.rabbit = NULL;
+ ssl->decrypt.rabbit = NULL;
+#endif
+ ssl->encrypt.setup = 0;
+ ssl->decrypt.setup = 0;
+}
+
+
+/* Free ciphers */
+void FreeCiphers(CYASSL* ssl)
+{
+ (void)ssl;
+#ifdef BUILD_ARC4
+ #ifdef HAVE_CAVIUM
+ if (ssl->devId != NO_CAVIUM_DEVICE) {
+ Arc4FreeCavium(ssl->encrypt.arc4);
+ Arc4FreeCavium(ssl->decrypt.arc4);
+ }
+ #endif
+ XFREE(ssl->encrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+#ifdef BUILD_DES3
+ #ifdef HAVE_CAVIUM
+ if (ssl->devId != NO_CAVIUM_DEVICE) {
+ Des3_FreeCavium(ssl->encrypt.des3);
+ Des3_FreeCavium(ssl->decrypt.des3);
+ }
+ #endif
+ XFREE(ssl->encrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+#ifdef BUILD_AES
+ #ifdef HAVE_CAVIUM
+ if (ssl->devId != NO_CAVIUM_DEVICE) {
+ AesFreeCavium(ssl->encrypt.aes);
+ AesFreeCavium(ssl->decrypt.aes);
+ }
+ #endif
+ XFREE(ssl->encrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+#ifdef HAVE_CAMELLIA
+ XFREE(ssl->encrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+#ifdef HAVE_HC128
+ XFREE(ssl->encrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+#ifdef BUILD_RABBIT
+ XFREE(ssl->encrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER);
+ XFREE(ssl->decrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER);
+#endif
+}
+
+
+void InitCipherSpecs(CipherSpecs* cs)
+{
+ cs->bulk_cipher_algorithm = INVALID_BYTE;
+ cs->cipher_type = INVALID_BYTE;
+ cs->mac_algorithm = INVALID_BYTE;
+ cs->kea = INVALID_BYTE;
+ cs->sig_algo = INVALID_BYTE;
+
+ cs->hash_size = 0;
+ cs->static_ecdh = 0;
+ cs->key_size = 0;
+ cs->iv_size = 0;
+ cs->block_size = 0;
+}
+
+
+void InitSuites(Suites* suites, ProtocolVersion pv, byte haveRSA, byte havePSK,
+ byte haveDH, byte haveNTRU, byte haveECDSAsig,
+ byte haveStaticECC, int side)
+{
+ word16 idx = 0;
+ int tls = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_MINOR;
+ int tls1_2 = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_2_MINOR;
+ int haveRSAsig = 1;
+
+ (void)tls; /* shut up compiler */
+ (void)tls1_2;
+ (void)haveDH;
+ (void)havePSK;
+ (void)haveNTRU;
+ (void)haveStaticECC;
+
+ if (suites == NULL) {
+ CYASSL_MSG("InitSuites pointer error");
+ return;
+ }
+
+ if (suites->setSuites)
+ return; /* trust user settings, don't override */
+
+ if (side == CYASSL_SERVER_END && haveStaticECC) {
+ haveRSA = 0; /* can't do RSA with ECDSA key */
+ (void)haveRSA; /* some builds won't read */
+ }
+
+ if (side == CYASSL_SERVER_END && haveECDSAsig) {
+ haveRSAsig = 0; /* can't have RSA sig if signed by ECDSA */
+ (void)haveRSAsig; /* non ecc builds won't read */
+ }
+
+#ifdef CYASSL_DTLS
+ if (pv.major == DTLS_MAJOR) {
+ tls = 1;
+ tls1_2 = pv.minor <= DTLSv1_2_MINOR;
+ }
+#endif
+
+#ifdef HAVE_RENEGOTIATION_INDICATION
+ if (side == CYASSL_CLIENT_END) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_EMPTY_RENEGOTIATION_INFO_SCSV;
+ }
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
+ if (tls && haveNTRU && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
+ if (tls && haveNTRU && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
+ if (tls && haveNTRU && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_NTRU_RSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
+ if (tls && haveNTRU && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveRSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
+ if (tls1_2 && haveRSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
+ if (tls1_2 && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
+ if (tls1_2 && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
+ if (tls && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
+ if (tls && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
+ if (tls && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
+ if (tls && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
+ if (tls && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
+ if (tls && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
+ if (tls && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
+ if (tls && haveECDSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
+ if (tls && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
+ if (tls && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
+ if (tls && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
+ if (tls && haveRSAsig && haveStaticECC) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
+ if (tls1_2 && haveECDSAsig) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_128_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_256_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
+ if (tls1_2 && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_256_GCM_SHA384;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_128_GCM_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
+ if (tls1_2 && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
+ if (tls && havePSK) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_PSK_WITH_AES_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
+ if (tls && havePSK) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
+ if (tls && havePSK) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
+ if (tls && havePSK) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_PSK_WITH_AES_128_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
+ if (tls && havePSK) {
+ suites->suites[idx++] = ECC_BYTE;
+ suites->suites[idx++] = TLS_PSK_WITH_AES_256_CCM_8;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
+ if (tls && havePSK) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
+ if (tls && havePSK) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA;
+ }
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
+ if (haveRSA ) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = SSL_RSA_WITH_RC4_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
+ if (haveRSA ) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = SSL_RSA_WITH_RC4_128_MD5;
+ }
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
+ if (haveRSA ) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = SSL_RSA_WITH_3DES_EDE_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_HC_128_MD5;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_HC_128_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_HC_128_B2B256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_B2B256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_B2B256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_RABBIT_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_WITH_RSA_CAMELLIA_256_CBC_SHA
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ if (tls && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256;
+ }
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ if (tls && haveDH && haveRSA) {
+ suites->suites[idx++] = 0;
+ suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256;
+ }
+#endif
+
+ suites->suiteSz = idx;
+
+ {
+ idx = 0;
+
+ if (haveECDSAsig) {
+ #ifdef CYASSL_SHA384
+ suites->hashSigAlgo[idx++] = sha384_mac;
+ suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ #endif
+ #ifndef NO_SHA256
+ suites->hashSigAlgo[idx++] = sha256_mac;
+ suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ #endif
+ #ifndef NO_SHA
+ suites->hashSigAlgo[idx++] = sha_mac;
+ suites->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ #endif
+ }
+
+ if (haveRSAsig) {
+ #ifdef CYASSL_SHA384
+ suites->hashSigAlgo[idx++] = sha384_mac;
+ suites->hashSigAlgo[idx++] = rsa_sa_algo;
+ #endif
+ #ifndef NO_SHA256
+ suites->hashSigAlgo[idx++] = sha256_mac;
+ suites->hashSigAlgo[idx++] = rsa_sa_algo;
+ #endif
+ #ifndef NO_SHA
+ suites->hashSigAlgo[idx++] = sha_mac;
+ suites->hashSigAlgo[idx++] = rsa_sa_algo;
+ #endif
+ }
+
+ suites->hashSigAlgoSz = idx;
+ }
+}
+
+
+#ifndef NO_CERTS
+
+
+void InitX509Name(CYASSL_X509_NAME* name, int dynamicFlag)
+{
+ (void)dynamicFlag;
+
+ if (name != NULL) {
+ name->name = name->staticName;
+ name->dynamicName = 0;
+#ifdef OPENSSL_EXTRA
+ XMEMSET(&name->fullName, 0, sizeof(DecodedName));
+#endif /* OPENSSL_EXTRA */
+ }
+}
+
+
+void FreeX509Name(CYASSL_X509_NAME* name)
+{
+ if (name != NULL) {
+ if (name->dynamicName)
+ XFREE(name->name, NULL, DYNAMIC_TYPE_SUBJECT_CN);
+#ifdef OPENSSL_EXTRA
+ if (name->fullName.fullName != NULL)
+ XFREE(name->fullName.fullName, NULL, DYNAMIC_TYPE_X509);
+#endif /* OPENSSL_EXTRA */
+ }
+}
+
+
+/* Initialize CyaSSL X509 type */
+void InitX509(CYASSL_X509* x509, int dynamicFlag)
+{
+ InitX509Name(&x509->issuer, 0);
+ InitX509Name(&x509->subject, 0);
+ x509->version = 0;
+ x509->pubKey.buffer = NULL;
+ x509->sig.buffer = NULL;
+ x509->derCert.buffer = NULL;
+ x509->altNames = NULL;
+ x509->altNamesNext = NULL;
+ x509->dynamicMemory = (byte)dynamicFlag;
+ x509->isCa = 0;
+#ifdef HAVE_ECC
+ x509->pkCurveOID = 0;
+#endif /* HAVE_ECC */
+#ifdef OPENSSL_EXTRA
+ x509->pathLength = 0;
+ x509->basicConstSet = 0;
+ x509->basicConstCrit = 0;
+ x509->basicConstPlSet = 0;
+ x509->subjAltNameSet = 0;
+ x509->subjAltNameCrit = 0;
+ x509->authKeyIdSet = 0;
+ x509->authKeyIdCrit = 0;
+ x509->authKeyId = NULL;
+ x509->authKeyIdSz = 0;
+ x509->subjKeyIdSet = 0;
+ x509->subjKeyIdCrit = 0;
+ x509->subjKeyId = NULL;
+ x509->subjKeyIdSz = 0;
+ x509->keyUsageSet = 0;
+ x509->keyUsageCrit = 0;
+ x509->keyUsage = 0;
+ #ifdef CYASSL_SEP
+ x509->certPolicySet = 0;
+ x509->certPolicyCrit = 0;
+ #endif /* CYASSL_SEP */
+#endif /* OPENSSL_EXTRA */
+}
+
+
+/* Free CyaSSL X509 type */
+void FreeX509(CYASSL_X509* x509)
+{
+ if (x509 == NULL)
+ return;
+
+ FreeX509Name(&x509->issuer);
+ FreeX509Name(&x509->subject);
+ if (x509->pubKey.buffer)
+ XFREE(x509->pubKey.buffer, NULL, DYNAMIC_TYPE_PUBLIC_KEY);
+ XFREE(x509->derCert.buffer, NULL, DYNAMIC_TYPE_SUBJECT_CN);
+ XFREE(x509->sig.buffer, NULL, DYNAMIC_TYPE_SIGNATURE);
+ #ifdef OPENSSL_EXTRA
+ XFREE(x509->authKeyId, NULL, 0);
+ XFREE(x509->subjKeyId, NULL, 0);
+ #endif /* OPENSSL_EXTRA */
+ if (x509->altNames)
+ FreeAltNames(x509->altNames, NULL);
+ if (x509->dynamicMemory)
+ XFREE(x509, NULL, DYNAMIC_TYPE_X509);
+}
+
+#endif /* NO_CERTS */
+
+
+/* init everything to 0, NULL, default values before calling anything that may
+ fail so that desctructor has a "good" state to cleanup */
+int InitSSL(CYASSL* ssl, CYASSL_CTX* ctx)
+{
+ int ret;
+ byte haveRSA = 0;
+ byte havePSK = 0;
+
+ ssl->ctx = ctx; /* only for passing to calls, options could change */
+ ssl->version = ctx->method->version;
+ ssl->suites = NULL;
+
+#ifdef HAVE_LIBZ
+ ssl->didStreamInit = 0;
+#endif
+#ifndef NO_RSA
+ haveRSA = 1;
+#endif
+
+#ifndef NO_CERTS
+ ssl->buffers.certificate.buffer = 0;
+ ssl->buffers.key.buffer = 0;
+ ssl->buffers.certChain.buffer = 0;
+#endif
+ ssl->buffers.inputBuffer.length = 0;
+ ssl->buffers.inputBuffer.idx = 0;
+ ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer;
+ ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN;
+ ssl->buffers.inputBuffer.dynamicFlag = 0;
+ ssl->buffers.inputBuffer.offset = 0;
+ ssl->buffers.outputBuffer.length = 0;
+ ssl->buffers.outputBuffer.idx = 0;
+ ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer;
+ ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN;
+ ssl->buffers.outputBuffer.dynamicFlag = 0;
+ ssl->buffers.outputBuffer.offset = 0;
+ ssl->buffers.domainName.buffer = 0;
+#ifndef NO_CERTS
+ ssl->buffers.serverDH_P.buffer = 0;
+ ssl->buffers.serverDH_G.buffer = 0;
+ ssl->buffers.serverDH_Pub.buffer = 0;
+ ssl->buffers.serverDH_Priv.buffer = 0;
+#endif
+ ssl->buffers.clearOutputBuffer.buffer = 0;
+ ssl->buffers.clearOutputBuffer.length = 0;
+ ssl->buffers.prevSent = 0;
+ ssl->buffers.plainSz = 0;
+#ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ssl->buffers.peerEccDsaKey.buffer = 0;
+ ssl->buffers.peerEccDsaKey.length = 0;
+ #endif /* HAVE_ECC */
+ #ifndef NO_RSA
+ ssl->buffers.peerRsaKey.buffer = 0;
+ ssl->buffers.peerRsaKey.length = 0;
+ #endif /* NO_RSA */
+#endif /* HAVE_PK_CALLBACKS */
+
+#ifdef KEEP_PEER_CERT
+ InitX509(&ssl->peerCert, 0);
+#endif
+
+#ifdef HAVE_ECC
+ ssl->eccTempKeySz = ctx->eccTempKeySz;
+ ssl->pkCurveOID = ctx->pkCurveOID;
+ ssl->peerEccKeyPresent = 0;
+ ssl->peerEccDsaKeyPresent = 0;
+ ssl->eccDsaKeyPresent = 0;
+ ssl->eccTempKeyPresent = 0;
+ ssl->peerEccKey = NULL;
+ ssl->peerEccDsaKey = NULL;
+ ssl->eccDsaKey = NULL;
+ ssl->eccTempKey = NULL;
+#endif
+
+ ssl->timeout = ctx->timeout;
+ ssl->rfd = -1; /* set to invalid descriptor */
+ ssl->wfd = -1;
+ ssl->rflags = 0; /* no user flags yet */
+ ssl->wflags = 0; /* no user flags yet */
+ ssl->biord = 0;
+ ssl->biowr = 0;
+
+ ssl->IOCB_ReadCtx = &ssl->rfd; /* prevent invalid pointer access if not */
+ ssl->IOCB_WriteCtx = &ssl->wfd; /* correctly set */
+#ifdef HAVE_NETX
+ ssl->nxCtx.nxSocket = NULL;
+ ssl->nxCtx.nxPacket = NULL;
+ ssl->nxCtx.nxOffset = 0;
+ ssl->nxCtx.nxWait = 0;
+ ssl->IOCB_ReadCtx = &ssl->nxCtx; /* default NetX IO ctx, same for read */
+ ssl->IOCB_WriteCtx = &ssl->nxCtx; /* and write */
+#endif
+#ifdef CYASSL_DTLS
+ ssl->IOCB_CookieCtx = NULL; /* we don't use for default cb */
+ ssl->dtls_expected_rx = MAX_MTU;
+ ssl->keys.dtls_state.window = 0;
+ ssl->keys.dtls_state.nextEpoch = 0;
+ ssl->keys.dtls_state.nextSeq = 0;
+#endif
+
+#ifndef NO_OLD_TLS
+#ifndef NO_MD5
+ InitMd5(&ssl->hashMd5);
+#endif
+#ifndef NO_SHA
+ ret = InitSha(&ssl->hashSha);
+ if (ret != 0) {
+ return ret;
+ }
+#endif
+#endif
+#ifndef NO_SHA256
+ ret = InitSha256(&ssl->hashSha256);
+ if (ret != 0) {
+ return ret;
+ }
+#endif
+#ifdef CYASSL_SHA384
+ ret = InitSha384(&ssl->hashSha384);
+ if (ret != 0) {
+ return ret;
+ }
+#endif
+#ifndef NO_RSA
+ ssl->peerRsaKey = NULL;
+ ssl->peerRsaKeyPresent = 0;
+#endif
+ ssl->verifyCallback = ctx->verifyCallback;
+ ssl->verifyCbCtx = NULL;
+ ssl->options.side = ctx->method->side;
+ ssl->options.downgrade = ctx->method->downgrade;
+ ssl->error = 0;
+ ssl->options.connReset = 0;
+ ssl->options.isClosed = 0;
+ ssl->options.closeNotify = 0;
+ ssl->options.sentNotify = 0;
+ ssl->options.usingCompression = 0;
+ if (ssl->options.side == CYASSL_SERVER_END)
+ ssl->options.haveDH = ctx->haveDH;
+ else
+ ssl->options.haveDH = 0;
+ ssl->options.haveNTRU = ctx->haveNTRU;
+ ssl->options.haveECDSAsig = ctx->haveECDSAsig;
+ ssl->options.haveStaticECC = ctx->haveStaticECC;
+ ssl->options.havePeerCert = 0;
+ ssl->options.havePeerVerify = 0;
+ ssl->options.usingPSK_cipher = 0;
+ ssl->options.sendAlertState = 0;
+#ifndef NO_PSK
+ havePSK = ctx->havePSK;
+ ssl->options.havePSK = ctx->havePSK;
+ ssl->options.client_psk_cb = ctx->client_psk_cb;
+ ssl->options.server_psk_cb = ctx->server_psk_cb;
+#endif /* NO_PSK */
+
+ ssl->options.serverState = NULL_STATE;
+ ssl->options.clientState = NULL_STATE;
+ ssl->options.connectState = CONNECT_BEGIN;
+ ssl->options.acceptState = ACCEPT_BEGIN;
+ ssl->options.handShakeState = NULL_STATE;
+ ssl->options.processReply = doProcessInit;
+
+#ifdef CYASSL_DTLS
+ ssl->keys.dtls_sequence_number = 0;
+ ssl->keys.dtls_state.curSeq = 0;
+ ssl->keys.dtls_state.nextSeq = 0;
+ ssl->keys.dtls_handshake_number = 0;
+ ssl->keys.dtls_expected_peer_handshake_number = 0;
+ ssl->keys.dtls_epoch = 0;
+ ssl->keys.dtls_state.curEpoch = 0;
+ ssl->keys.dtls_state.nextEpoch = 0;
+ ssl->dtls_timeout_init = DTLS_TIMEOUT_INIT;
+ ssl->dtls_timeout_max = DTLS_TIMEOUT_MAX;
+ ssl->dtls_timeout = ssl->dtls_timeout_init;
+ ssl->dtls_pool = NULL;
+ ssl->dtls_msg_list = NULL;
+#endif
+ ssl->keys.encryptSz = 0;
+ ssl->keys.padSz = 0;
+ ssl->keys.encryptionOn = 0; /* initially off */
+ ssl->keys.decryptedCur = 0; /* initially off */
+ ssl->options.sessionCacheOff = ctx->sessionCacheOff;
+ ssl->options.sessionCacheFlushOff = ctx->sessionCacheFlushOff;
+
+ ssl->options.verifyPeer = ctx->verifyPeer;
+ ssl->options.verifyNone = ctx->verifyNone;
+ ssl->options.failNoCert = ctx->failNoCert;
+ ssl->options.sendVerify = ctx->sendVerify;
+
+ ssl->options.resuming = 0;
+ ssl->options.haveSessionId = 0;
+ #ifndef NO_OLD_TLS
+ ssl->hmac = SSL_hmac; /* default to SSLv3 */
+ #else
+ ssl->hmac = TLS_hmac;
+ #endif
+ ssl->heap = ctx->heap; /* defaults to self */
+ ssl->options.tls = 0;
+ ssl->options.tls1_1 = 0;
+ ssl->options.dtls = ssl->version.major == DTLS_MAJOR;
+ ssl->options.partialWrite = ctx->partialWrite;
+ ssl->options.quietShutdown = ctx->quietShutdown;
+ ssl->options.certOnly = 0;
+ ssl->options.groupMessages = ctx->groupMessages;
+ ssl->options.usingNonblock = 0;
+ ssl->options.saveArrays = 0;
+
+#ifndef NO_CERTS
+ /* ctx still owns certificate, certChain, key, dh, and cm */
+ ssl->buffers.certificate = ctx->certificate;
+ ssl->buffers.certChain = ctx->certChain;
+ ssl->buffers.key = ctx->privateKey;
+ if (ssl->options.side == CYASSL_SERVER_END) {
+ ssl->buffers.serverDH_P = ctx->serverDH_P;
+ ssl->buffers.serverDH_G = ctx->serverDH_G;
+ }
+#endif
+ ssl->buffers.weOwnCert = 0;
+ ssl->buffers.weOwnKey = 0;
+ ssl->buffers.weOwnDH = 0;
+
+#ifdef CYASSL_DTLS
+ ssl->buffers.dtlsCtx.fd = -1;
+ ssl->buffers.dtlsCtx.peer.sa = NULL;
+ ssl->buffers.dtlsCtx.peer.sz = 0;
+#endif
+
+#ifdef KEEP_PEER_CERT
+ ssl->peerCert.issuer.sz = 0;
+ ssl->peerCert.subject.sz = 0;
+#endif
+
+#ifdef SESSION_CERTS
+ ssl->session.chain.count = 0;
+#endif
+
+#ifndef NO_CLIENT_CACHE
+ ssl->session.idLen = 0;
+#endif
+
+ ssl->cipher.ssl = ssl;
+
+#ifdef FORTRESS
+ ssl->ex_data[0] = 0;
+ ssl->ex_data[1] = 0;
+ ssl->ex_data[2] = 0;
+#endif
+
+#ifdef CYASSL_CALLBACKS
+ ssl->hsInfoOn = 0;
+ ssl->toInfoOn = 0;
+#endif
+
+#ifdef HAVE_CAVIUM
+ ssl->devId = ctx->devId;
+#endif
+
+#ifdef HAVE_TLS_EXTENSIONS
+ ssl->extensions = NULL;
+#ifdef HAVE_MAX_FRAGMENT
+ ssl->max_fragment = MAX_RECORD_SIZE;
+#endif
+#ifdef HAVE_TRUNCATED_HMAC
+ ssl->truncated_hmac = 0;
+#endif
+#endif
+
+ ssl->rng = NULL;
+ ssl->arrays = NULL;
+
+ /* default alert state (none) */
+ ssl->alert_history.last_rx.code = -1;
+ ssl->alert_history.last_rx.level = -1;
+ ssl->alert_history.last_tx.code = -1;
+ ssl->alert_history.last_tx.level = -1;
+
+ InitCiphers(ssl);
+ InitCipherSpecs(&ssl->specs);
+#ifdef ATOMIC_USER
+ ssl->MacEncryptCtx = NULL;
+ ssl->DecryptVerifyCtx = NULL;
+#endif
+#ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ssl->EccSignCtx = NULL;
+ ssl->EccVerifyCtx = NULL;
+ #endif /* HAVE_ECC */
+ #ifndef NO_RSA
+ ssl->RsaSignCtx = NULL;
+ ssl->RsaVerifyCtx = NULL;
+ ssl->RsaEncCtx = NULL;
+ ssl->RsaDecCtx = NULL;
+ #endif /* NO_RSA */
+#endif /* HAVE_PK_CALLBACKS */
+
+ /* all done with init, now can return errors, call other stuff */
+
+ /* increment CTX reference count */
+ if (LockMutex(&ctx->countMutex) != 0) {
+ CYASSL_MSG("Couldn't lock CTX count mutex");
+ return BAD_MUTEX_E;
+ }
+ ctx->refCount++;
+ UnLockMutex(&ctx->countMutex);
+
+ /* arrays */
+ ssl->arrays = (Arrays*)XMALLOC(sizeof(Arrays), ssl->heap,
+ DYNAMIC_TYPE_ARRAYS);
+ if (ssl->arrays == NULL) {
+ CYASSL_MSG("Arrays Memory error");
+ return MEMORY_E;
+ }
+ XMEMSET(ssl->arrays, 0, sizeof(Arrays));
+
+#ifndef NO_PSK
+ ssl->arrays->client_identity[0] = 0;
+ if (ctx->server_hint[0]) { /* set in CTX */
+ XSTRNCPY(ssl->arrays->server_hint, ctx->server_hint, MAX_PSK_ID_LEN);
+ ssl->arrays->server_hint[MAX_PSK_ID_LEN - 1] = '\0';
+ }
+ else
+ ssl->arrays->server_hint[0] = 0;
+#endif /* NO_PSK */
+
+#ifdef CYASSL_DTLS
+ ssl->arrays->cookieSz = 0;
+#endif
+
+ /* RNG */
+ ssl->rng = (RNG*)XMALLOC(sizeof(RNG), ssl->heap, DYNAMIC_TYPE_RNG);
+ if (ssl->rng == NULL) {
+ CYASSL_MSG("RNG Memory error");
+ return MEMORY_E;
+ }
+
+ if ( (ret = InitRng(ssl->rng)) != 0) {
+ CYASSL_MSG("RNG Init error");
+ return ret;
+ }
+
+ /* suites */
+ ssl->suites = (Suites*)XMALLOC(sizeof(Suites), ssl->heap,
+ DYNAMIC_TYPE_SUITES);
+ if (ssl->suites == NULL) {
+ CYASSL_MSG("Suites Memory error");
+ return MEMORY_E;
+ }
+ *ssl->suites = ctx->suites;
+
+ /* peer key */
+#ifndef NO_RSA
+ ssl->peerRsaKey = (RsaKey*)XMALLOC(sizeof(RsaKey), ssl->heap,
+ DYNAMIC_TYPE_RSA);
+ if (ssl->peerRsaKey == NULL) {
+ CYASSL_MSG("PeerRsaKey Memory error");
+ return MEMORY_E;
+ }
+ ret = InitRsaKey(ssl->peerRsaKey, ctx->heap);
+ if (ret != 0) return ret;
+#endif
+#ifndef NO_CERTS
+ /* make sure server has cert and key unless using PSK */
+ if (ssl->options.side == CYASSL_SERVER_END && !havePSK)
+ if (!ssl->buffers.certificate.buffer || !ssl->buffers.key.buffer) {
+ CYASSL_MSG("Server missing certificate and/or private key");
+ return NO_PRIVATE_KEY;
+ }
+#endif
+#ifdef HAVE_ECC
+ ssl->peerEccKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
+ ctx->heap, DYNAMIC_TYPE_ECC);
+ if (ssl->peerEccKey == NULL) {
+ CYASSL_MSG("PeerEccKey Memory error");
+ return MEMORY_E;
+ }
+ ssl->peerEccDsaKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
+ ctx->heap, DYNAMIC_TYPE_ECC);
+ if (ssl->peerEccDsaKey == NULL) {
+ CYASSL_MSG("PeerEccDsaKey Memory error");
+ return MEMORY_E;
+ }
+ ssl->eccDsaKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
+ ctx->heap, DYNAMIC_TYPE_ECC);
+ if (ssl->eccDsaKey == NULL) {
+ CYASSL_MSG("EccDsaKey Memory error");
+ return MEMORY_E;
+ }
+ ssl->eccTempKey = (ecc_key*)XMALLOC(sizeof(ecc_key),
+ ctx->heap, DYNAMIC_TYPE_ECC);
+ if (ssl->eccTempKey == NULL) {
+ CYASSL_MSG("EccTempKey Memory error");
+ return MEMORY_E;
+ }
+ ecc_init(ssl->peerEccKey);
+ ecc_init(ssl->peerEccDsaKey);
+ ecc_init(ssl->eccDsaKey);
+ ecc_init(ssl->eccTempKey);
+#endif
+
+ /* make sure server has DH parms, and add PSK if there, add NTRU too */
+ if (ssl->options.side == CYASSL_SERVER_END)
+ InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
+ ssl->options.haveDH, ssl->options.haveNTRU,
+ ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
+ ssl->options.side);
+ else
+ InitSuites(ssl->suites, ssl->version, haveRSA, havePSK, TRUE,
+ ssl->options.haveNTRU, ssl->options.haveECDSAsig,
+ ssl->options.haveStaticECC, ssl->options.side);
+
+ return 0;
+}
+
+
+/* free use of temporary arrays */
+void FreeArrays(CYASSL* ssl, int keep)
+{
+ if (ssl->arrays && keep) {
+ /* keeps session id for user retrieval */
+ XMEMCPY(ssl->session.sessionID, ssl->arrays->sessionID, ID_LEN);
+ }
+ XFREE(ssl->arrays, ssl->heap, DYNAMIC_TYPE_ARRAYS);
+ ssl->arrays = NULL;
+}
+
+
+/* In case holding SSL object in array and don't want to free actual ssl */
+void SSL_ResourceFree(CYASSL* ssl)
+{
+ FreeCiphers(ssl);
+ FreeArrays(ssl, 0);
+ XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG);
+ XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES);
+ XFREE(ssl->buffers.domainName.buffer, ssl->heap, DYNAMIC_TYPE_DOMAIN);
+
+#ifndef NO_CERTS
+ XFREE(ssl->buffers.serverDH_Priv.buffer, ssl->heap, DYNAMIC_TYPE_DH);
+ XFREE(ssl->buffers.serverDH_Pub.buffer, ssl->heap, DYNAMIC_TYPE_DH);
+ /* parameters (p,g) may be owned by ctx */
+ if (ssl->buffers.weOwnDH || ssl->options.side == CYASSL_CLIENT_END) {
+ XFREE(ssl->buffers.serverDH_G.buffer, ssl->heap, DYNAMIC_TYPE_DH);
+ XFREE(ssl->buffers.serverDH_P.buffer, ssl->heap, DYNAMIC_TYPE_DH);
+ }
+
+ /* CYASSL_CTX always owns certChain */
+ if (ssl->buffers.weOwnCert)
+ XFREE(ssl->buffers.certificate.buffer, ssl->heap, DYNAMIC_TYPE_CERT);
+ if (ssl->buffers.weOwnKey)
+ XFREE(ssl->buffers.key.buffer, ssl->heap, DYNAMIC_TYPE_KEY);
+#endif
+#ifndef NO_RSA
+ if (ssl->peerRsaKey) {
+ FreeRsaKey(ssl->peerRsaKey);
+ XFREE(ssl->peerRsaKey, ssl->heap, DYNAMIC_TYPE_RSA);
+ }
+#endif
+ if (ssl->buffers.inputBuffer.dynamicFlag)
+ ShrinkInputBuffer(ssl, FORCED_FREE);
+ if (ssl->buffers.outputBuffer.dynamicFlag)
+ ShrinkOutputBuffer(ssl);
+#ifdef CYASSL_DTLS
+ if (ssl->dtls_pool != NULL) {
+ DtlsPoolReset(ssl);
+ XFREE(ssl->dtls_pool, ssl->heap, DYNAMIC_TYPE_NONE);
+ }
+ if (ssl->dtls_msg_list != NULL) {
+ DtlsMsgListDelete(ssl->dtls_msg_list, ssl->heap);
+ ssl->dtls_msg_list = NULL;
+ }
+ XFREE(ssl->buffers.dtlsCtx.peer.sa, ssl->heap, DYNAMIC_TYPE_SOCKADDR);
+ ssl->buffers.dtlsCtx.peer.sa = NULL;
+#endif
+#if defined(KEEP_PEER_CERT) || defined(GOAHEAD_WS)
+ FreeX509(&ssl->peerCert);
+#endif
+#if defined(OPENSSL_EXTRA) || defined(GOAHEAD_WS)
+ CyaSSL_BIO_free(ssl->biord);
+ if (ssl->biord != ssl->biowr) /* in case same as write */
+ CyaSSL_BIO_free(ssl->biowr);
+#endif
+#ifdef HAVE_LIBZ
+ FreeStreams(ssl);
+#endif
+#ifdef HAVE_ECC
+ if (ssl->peerEccKey) {
+ if (ssl->peerEccKeyPresent)
+ ecc_free(ssl->peerEccKey);
+ XFREE(ssl->peerEccKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ }
+ if (ssl->peerEccDsaKey) {
+ if (ssl->peerEccDsaKeyPresent)
+ ecc_free(ssl->peerEccDsaKey);
+ XFREE(ssl->peerEccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ }
+ if (ssl->eccTempKey) {
+ if (ssl->eccTempKeyPresent)
+ ecc_free(ssl->eccTempKey);
+ XFREE(ssl->eccTempKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ }
+ if (ssl->eccDsaKey) {
+ if (ssl->eccDsaKeyPresent)
+ ecc_free(ssl->eccDsaKey);
+ XFREE(ssl->eccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ }
+#endif
+#ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC);
+ #endif /* HAVE_ECC */
+ #ifndef NO_RSA
+ XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA);
+ #endif /* NO_RSA */
+#endif /* HAVE_PK_CALLBACKS */
+#ifdef HAVE_TLS_EXTENSIONS
+ TLSX_FreeAll(ssl->extensions);
+#endif
+#ifdef HAVE_NETX
+ if (ssl->nxCtx.nxPacket)
+ nx_packet_release(ssl->nxCtx.nxPacket);
+#endif
+}
+
+
+/* Free any handshake resources no longer needed */
+void FreeHandshakeResources(CYASSL* ssl)
+{
+ /* input buffer */
+ if (ssl->buffers.inputBuffer.dynamicFlag)
+ ShrinkInputBuffer(ssl, NO_FORCED_FREE);
+
+ /* suites */
+ XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES);
+ ssl->suites = NULL;
+
+ /* RNG */
+ if (ssl->specs.cipher_type == stream || ssl->options.tls1_1 == 0) {
+ XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG);
+ ssl->rng = NULL;
+ }
+
+#ifdef CYASSL_DTLS
+ /* DTLS_POOL */
+ if (ssl->options.dtls && ssl->dtls_pool != NULL) {
+ DtlsPoolReset(ssl);
+ XFREE(ssl->dtls_pool, ssl->heap, DYNAMIC_TYPE_DTLS_POOL);
+ ssl->dtls_pool = NULL;
+ }
+#endif
+
+ /* arrays */
+ if (ssl->options.saveArrays)
+ FreeArrays(ssl, 1);
+
+#ifndef NO_RSA
+ /* peerRsaKey */
+ if (ssl->peerRsaKey) {
+ FreeRsaKey(ssl->peerRsaKey);
+ XFREE(ssl->peerRsaKey, ssl->heap, DYNAMIC_TYPE_RSA);
+ ssl->peerRsaKey = NULL;
+ }
+#endif
+
+#ifdef HAVE_ECC
+ if (ssl->peerEccKey)
+ {
+ if (ssl->peerEccKeyPresent) {
+ ecc_free(ssl->peerEccKey);
+ ssl->peerEccKeyPresent = 0;
+ }
+ XFREE(ssl->peerEccKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ ssl->peerEccKey = NULL;
+ }
+ if (ssl->peerEccDsaKey)
+ {
+ if (ssl->peerEccDsaKeyPresent) {
+ ecc_free(ssl->peerEccDsaKey);
+ ssl->peerEccDsaKeyPresent = 0;
+ }
+ XFREE(ssl->peerEccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ ssl->peerEccDsaKey = NULL;
+ }
+ if (ssl->eccTempKey)
+ {
+ if (ssl->eccTempKeyPresent) {
+ ecc_free(ssl->eccTempKey);
+ ssl->eccTempKeyPresent = 0;
+ }
+ XFREE(ssl->eccTempKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ ssl->eccTempKey = NULL;
+ }
+ if (ssl->eccDsaKey)
+ {
+ if (ssl->eccDsaKeyPresent) {
+ ecc_free(ssl->eccDsaKey);
+ ssl->eccDsaKeyPresent = 0;
+ }
+ XFREE(ssl->eccDsaKey, ssl->heap, DYNAMIC_TYPE_ECC);
+ ssl->eccDsaKey = NULL;
+ }
+#endif
+#ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC);
+ ssl->buffers.peerEccDsaKey.buffer = NULL;
+ #endif /* HAVE_ECC */
+ #ifndef NO_RSA
+ XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA);
+ ssl->buffers.peerRsaKey.buffer = NULL;
+ #endif /* NO_RSA */
+#endif /* HAVE_PK_CALLBACKS */
+}
+
+
+void FreeSSL(CYASSL* ssl)
+{
+ FreeSSL_Ctx(ssl->ctx); /* will decrement and free underyling CTX if 0 */
+ SSL_ResourceFree(ssl);
+ XFREE(ssl, ssl->heap, DYNAMIC_TYPE_SSL);
+}
+
+
+#ifdef CYASSL_DTLS
+
+int DtlsPoolInit(CYASSL* ssl)
+{
+ if (ssl->dtls_pool == NULL) {
+ DtlsPool *pool = (DtlsPool*)XMALLOC(sizeof(DtlsPool),
+ ssl->heap, DYNAMIC_TYPE_DTLS_POOL);
+ if (pool == NULL) {
+ CYASSL_MSG("DTLS Buffer Pool Memory error");
+ return MEMORY_E;
+ }
+ else {
+ int i;
+
+ for (i = 0; i < DTLS_POOL_SZ; i++) {
+ pool->buf[i].length = 0;
+ pool->buf[i].buffer = NULL;
+ }
+ pool->used = 0;
+ ssl->dtls_pool = pool;
+ }
+ }
+ return 0;
+}
+
+
+int DtlsPoolSave(CYASSL* ssl, const byte *src, int sz)
+{
+ DtlsPool *pool = ssl->dtls_pool;
+ if (pool != NULL && pool->used < DTLS_POOL_SZ) {
+ buffer *pBuf = &pool->buf[pool->used];
+ pBuf->buffer = (byte*)XMALLOC(sz, ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
+ if (pBuf->buffer == NULL) {
+ CYASSL_MSG("DTLS Buffer Memory error");
+ return MEMORY_ERROR;
+ }
+ XMEMCPY(pBuf->buffer, src, sz);
+ pBuf->length = (word32)sz;
+ pool->used++;
+ }
+ return 0;
+}
+
+
+void DtlsPoolReset(CYASSL* ssl)
+{
+ DtlsPool *pool = ssl->dtls_pool;
+ if (pool != NULL) {
+ buffer *pBuf;
+ int i, used;
+
+ used = pool->used;
+ for (i = 0, pBuf = &pool->buf[0]; i < used; i++, pBuf++) {
+ XFREE(pBuf->buffer, ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
+ pBuf->buffer = NULL;
+ pBuf->length = 0;
+ }
+ pool->used = 0;
+ }
+ ssl->dtls_timeout = ssl->dtls_timeout_init;
+}
+
+
+int DtlsPoolTimeout(CYASSL* ssl)
+{
+ int result = -1;
+ if (ssl->dtls_timeout < ssl->dtls_timeout_max) {
+ ssl->dtls_timeout *= DTLS_TIMEOUT_MULTIPLIER;
+ result = 0;
+ }
+ return result;
+}
+
+
+int DtlsPoolSend(CYASSL* ssl)
+{
+ int ret;
+ DtlsPool *pool = ssl->dtls_pool;
+
+ if (pool != NULL && pool->used > 0) {
+ int i;
+ for (i = 0; i < pool->used; i++) {
+ int sendResult;
+ buffer* buf = &pool->buf[i];
+
+ DtlsRecordLayerHeader* dtls = (DtlsRecordLayerHeader*)buf->buffer;
+
+ word16 message_epoch;
+ ato16(dtls->epoch, &message_epoch);
+ if (message_epoch == ssl->keys.dtls_epoch) {
+ /* Increment record sequence number on retransmitted handshake
+ * messages */
+ c32to48(ssl->keys.dtls_sequence_number, dtls->sequence_number);
+ ssl->keys.dtls_sequence_number++;
+ }
+ else {
+ /* The Finished message is sent with the next epoch, keep its
+ * sequence number */
+ }
+
+ if ((ret = CheckAvailableSize(ssl, buf->length)) != 0)
+ return ret;
+
+ XMEMCPY(ssl->buffers.outputBuffer.buffer, buf->buffer, buf->length);
+ ssl->buffers.outputBuffer.idx = 0;
+ ssl->buffers.outputBuffer.length = buf->length;
+
+ sendResult = SendBuffered(ssl);
+ if (sendResult < 0) {
+ return sendResult;
+ }
+ }
+ }
+ return 0;
+}
+
+
+/* functions for managing DTLS datagram reordering */
+
+/* Need to allocate space for the handshake message header. The hashing
+ * routines assume the message pointer is still within the buffer that
+ * has the headers, and will include those headers in the hash. The store
+ * routines need to take that into account as well. New will allocate
+ * extra space for the headers. */
+DtlsMsg* DtlsMsgNew(word32 sz, void* heap)
+{
+ DtlsMsg* msg = NULL;
+
+ msg = (DtlsMsg*)XMALLOC(sizeof(DtlsMsg), heap, DYNAMIC_TYPE_DTLS_MSG);
+
+ if (msg != NULL) {
+ msg->buf = (byte*)XMALLOC(sz + DTLS_HANDSHAKE_HEADER_SZ,
+ heap, DYNAMIC_TYPE_NONE);
+ if (msg->buf != NULL) {
+ msg->next = NULL;
+ msg->seq = 0;
+ msg->sz = sz;
+ msg->fragSz = 0;
+ msg->msg = msg->buf + DTLS_HANDSHAKE_HEADER_SZ;
+ }
+ else {
+ XFREE(msg, heap, DYNAMIC_TYPE_DTLS_MSG);
+ msg = NULL;
+ }
+ }
+
+ return msg;
+}
+
+void DtlsMsgDelete(DtlsMsg* item, void* heap)
+{
+ (void)heap;
+
+ if (item != NULL) {
+ if (item->buf != NULL)
+ XFREE(item->buf, heap, DYNAMIC_TYPE_NONE);
+ XFREE(item, heap, DYNAMIC_TYPE_DTLS_MSG);
+ }
+}
+
+
+void DtlsMsgListDelete(DtlsMsg* head, void* heap)
+{
+ DtlsMsg* next;
+ while (head) {
+ next = head->next;
+ DtlsMsgDelete(head, heap);
+ head = next;
+ }
+}
+
+
+void DtlsMsgSet(DtlsMsg* msg, word32 seq, const byte* data, byte type,
+ word32 fragOffset, word32 fragSz)
+{
+ if (msg != NULL && data != NULL && msg->fragSz <= msg->sz) {
+ msg->seq = seq;
+ msg->type = type;
+ msg->fragSz += fragSz;
+ /* If fragOffset is zero, this is either a full message that is out
+ * of order, or the first fragment of a fragmented message. Copy the
+ * handshake message header as well as the message data. */
+ if (fragOffset == 0)
+ XMEMCPY(msg->buf, data - DTLS_HANDSHAKE_HEADER_SZ,
+ fragSz + DTLS_HANDSHAKE_HEADER_SZ);
+ else {
+ /* If fragOffet is non-zero, this is an additional fragment that
+ * needs to be copied to its location in the message buffer. Also
+ * copy the total size of the message over the fragment size. The
+ * hash routines look at a defragmented message if it had actually
+ * come across as a single handshake message. */
+ XMEMCPY(msg->msg + fragOffset, data, fragSz);
+ c32to24(msg->sz, msg->msg - DTLS_HANDSHAKE_FRAG_SZ);
+ }
+ }
+}
+
+
+DtlsMsg* DtlsMsgFind(DtlsMsg* head, word32 seq)
+{
+ while (head != NULL && head->seq != seq) {
+ head = head->next;
+ }
+ return head;
+}
+
+
+DtlsMsg* DtlsMsgStore(DtlsMsg* head, word32 seq, const byte* data,
+ word32 dataSz, byte type, word32 fragOffset, word32 fragSz, void* heap)
+{
+
+ /* See if seq exists in the list. If it isn't in the list, make
+ * a new item of size dataSz, copy fragSz bytes from data to msg->msg
+ * starting at offset fragOffset, and add fragSz to msg->fragSz. If
+ * the seq is in the list and it isn't full, copy fragSz bytes from
+ * data to msg->msg starting at offset fragOffset, and add fragSz to
+ * msg->fragSz. The new item should be inserted into the list in its
+ * proper position.
+ *
+ * 1. Find seq in list, or where seq should go in list. If seq not in
+ * list, create new item and insert into list. Either case, keep
+ * pointer to item.
+ * 2. If msg->fragSz + fragSz < sz, copy data to msg->msg at offset
+ * fragOffset. Add fragSz to msg->fragSz.
+ */
+
+ if (head != NULL) {
+ DtlsMsg* cur = DtlsMsgFind(head, seq);
+ if (cur == NULL) {
+ cur = DtlsMsgNew(dataSz, heap);
+ if (cur != NULL) {
+ DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
+ head = DtlsMsgInsert(head, cur);
+ }
+ }
+ else {
+ DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz);
+ }
+ }
+ else {
+ head = DtlsMsgNew(dataSz, heap);
+ DtlsMsgSet(head, seq, data, type, fragOffset, fragSz);
+ }
+
+ return head;
+}
+
+
+/* DtlsMsgInsert() is an in-order insert. */
+DtlsMsg* DtlsMsgInsert(DtlsMsg* head, DtlsMsg* item)
+{
+ if (head == NULL || item->seq < head->seq) {
+ item->next = head;
+ head = item;
+ }
+ else if (head->next == NULL) {
+ head->next = item;
+ }
+ else {
+ DtlsMsg* cur = head->next;
+ DtlsMsg* prev = head;
+ while (cur) {
+ if (item->seq < cur->seq) {
+ item->next = cur;
+ prev->next = item;
+ break;
+ }
+ prev = cur;
+ cur = cur->next;
+ }
+ if (cur == NULL) {
+ prev->next = item;
+ }
+ }
+
+ return head;
+}
+
+#endif /* CYASSL_DTLS */
+
+#ifndef NO_OLD_TLS
+
+ProtocolVersion MakeSSLv3(void)
+{
+ ProtocolVersion pv;
+ pv.major = SSLv3_MAJOR;
+ pv.minor = SSLv3_MINOR;
+
+ return pv;
+}
+
+#endif /* NO_OLD_TLS */
+
+
+#ifdef CYASSL_DTLS
+
+ProtocolVersion MakeDTLSv1(void)
+{
+ ProtocolVersion pv;
+ pv.major = DTLS_MAJOR;
+ pv.minor = DTLS_MINOR;
+
+ return pv;
+}
+
+ProtocolVersion MakeDTLSv1_2(void)
+{
+ ProtocolVersion pv;
+ pv.major = DTLS_MAJOR;
+ pv.minor = DTLSv1_2_MINOR;
+
+ return pv;
+}
+
+#endif /* CYASSL_DTLS */
+
+
+
+
+#ifdef USE_WINDOWS_API
+
+ word32 LowResTimer(void)
+ {
+ static int init = 0;
+ static LARGE_INTEGER freq;
+ LARGE_INTEGER count;
+
+ if (!init) {
+ QueryPerformanceFrequency(&freq);
+ init = 1;
+ }
+
+ QueryPerformanceCounter(&count);
+
+ return (word32)(count.QuadPart / freq.QuadPart);
+ }
+
+#elif defined(HAVE_RTP_SYS)
+
+ #include "rtptime.h"
+
+ word32 LowResTimer(void)
+ {
+ return (word32)rtp_get_system_sec();
+ }
+
+
+#elif defined(MICRIUM)
+
+ word32 LowResTimer(void)
+ {
+ NET_SECURE_OS_TICK clk;
+
+ #if (NET_SECURE_MGR_CFG_EN == DEF_ENABLED)
+ clk = NetSecure_OS_TimeGet();
+ #endif
+ return (word32)clk;
+ }
+
+
+#elif defined(MICROCHIP_TCPIP_V5)
+
+ word32 LowResTimer(void)
+ {
+ return (word32) TickGet();
+ }
+
+
+#elif defined(MICROCHIP_TCPIP)
+
+ #if defined(MICROCHIP_MPLAB_HARMONY)
+
+ #include <system/tmr/sys_tmr.h>
+
+ word32 LowResTimer(void)
+ {
+ return (word32) SYS_TMR_TickCountGet();
+ }
+
+ #else
+
+ word32 LowResTimer(void)
+ {
+ return (word32) SYS_TICK_Get();
+ }
+
+ #endif
+
+#elif defined(FREESCALE_MQX)
+
+ word32 LowResTimer(void)
+ {
+ TIME_STRUCT mqxTime;
+
+ _time_get_elapsed(&mqxTime);
+
+ return (word32) mqxTime.SECONDS;
+ }
+
+
+#elif defined(USER_TICKS)
+#if 0
+ word32 LowResTimer(void)
+ {
+ /*
+ write your own clock tick function if don't want time(0)
+ needs second accuracy but doesn't have to correlated to EPOCH
+ */
+ }
+#endif
+#else /* !USE_WINDOWS_API && !HAVE_RTP_SYS && !MICRIUM && !USER_TICKS */
+
+ #include <time.h>
+
+ word32 LowResTimer(void)
+ {
+ return (word32)time(0);
+ }
+
+
+#endif /* USE_WINDOWS_API */
+
+
+/* add output to md5 and sha handshake hashes, exclude record header */
+static int HashOutput(CYASSL* ssl, const byte* output, int sz, int ivSz)
+{
+ const byte* adj = output + RECORD_HEADER_SZ + ivSz;
+ sz -= RECORD_HEADER_SZ;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ adj += DTLS_RECORD_EXTRA;
+ sz -= DTLS_RECORD_EXTRA;
+ }
+#endif
+#ifndef NO_OLD_TLS
+#ifndef NO_SHA
+ ShaUpdate(&ssl->hashSha, adj, sz);
+#endif
+#ifndef NO_MD5
+ Md5Update(&ssl->hashMd5, adj, sz);
+#endif
+#endif
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ int ret;
+
+#ifndef NO_SHA256
+ ret = Sha256Update(&ssl->hashSha256, adj, sz);
+ if (ret != 0)
+ return ret;
+#endif
+#ifdef CYASSL_SHA384
+ ret = Sha384Update(&ssl->hashSha384, adj, sz);
+ if (ret != 0)
+ return ret;
+#endif
+ }
+
+ return 0;
+}
+
+
+/* add input to md5 and sha handshake hashes, include handshake header */
+static int HashInput(CYASSL* ssl, const byte* input, int sz)
+{
+ const byte* adj = input - HANDSHAKE_HEADER_SZ;
+ sz += HANDSHAKE_HEADER_SZ;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ adj -= DTLS_HANDSHAKE_EXTRA;
+ sz += DTLS_HANDSHAKE_EXTRA;
+ }
+#endif
+
+#ifndef NO_OLD_TLS
+#ifndef NO_SHA
+ ShaUpdate(&ssl->hashSha, adj, sz);
+#endif
+#ifndef NO_MD5
+ Md5Update(&ssl->hashMd5, adj, sz);
+#endif
+#endif
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ int ret;
+
+#ifndef NO_SHA256
+ ret = Sha256Update(&ssl->hashSha256, adj, sz);
+ if (ret != 0)
+ return ret;
+#endif
+#ifdef CYASSL_SHA384
+ ret = Sha384Update(&ssl->hashSha384, adj, sz);
+ if (ret != 0)
+ return ret;
+#endif
+ }
+
+ return 0;
+}
+
+
+/* add record layer header for message */
+static void AddRecordHeader(byte* output, word32 length, byte type, CYASSL* ssl)
+{
+ RecordLayerHeader* rl;
+
+ /* record layer header */
+ rl = (RecordLayerHeader*)output;
+ rl->type = type;
+ rl->pvMajor = ssl->version.major; /* type and version same in each */
+ rl->pvMinor = ssl->version.minor;
+
+ if (!ssl->options.dtls)
+ c16toa((word16)length, rl->length);
+ else {
+#ifdef CYASSL_DTLS
+ DtlsRecordLayerHeader* dtls;
+
+ /* dtls record layer header extensions */
+ dtls = (DtlsRecordLayerHeader*)output;
+ c16toa(ssl->keys.dtls_epoch, dtls->epoch);
+ c32to48(ssl->keys.dtls_sequence_number++, dtls->sequence_number);
+ c16toa((word16)length, dtls->length);
+#endif
+ }
+}
+
+
+/* add handshake header for message */
+static void AddHandShakeHeader(byte* output, word32 length, byte type,
+ CYASSL* ssl)
+{
+ HandShakeHeader* hs;
+ (void)ssl;
+
+ /* handshake header */
+ hs = (HandShakeHeader*)output;
+ hs->type = type;
+ c32to24(length, hs->length); /* type and length same for each */
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ DtlsHandShakeHeader* dtls;
+
+ /* dtls handshake header extensions */
+ dtls = (DtlsHandShakeHeader*)output;
+ c16toa(ssl->keys.dtls_handshake_number++, dtls->message_seq);
+ c32to24(0, dtls->fragment_offset);
+ c32to24(length, dtls->fragment_length);
+ }
+#endif
+}
+
+
+/* add both headers for handshake message */
+static void AddHeaders(byte* output, word32 length, byte type, CYASSL* ssl)
+{
+ if (!ssl->options.dtls) {
+ AddRecordHeader(output, length + HANDSHAKE_HEADER_SZ, handshake, ssl);
+ AddHandShakeHeader(output + RECORD_HEADER_SZ, length, type, ssl);
+ }
+#ifdef CYASSL_DTLS
+ else {
+ AddRecordHeader(output, length+DTLS_HANDSHAKE_HEADER_SZ, handshake,ssl);
+ AddHandShakeHeader(output + DTLS_RECORD_HEADER_SZ, length, type, ssl);
+ }
+#endif
+}
+
+
+/* return bytes received, -1 on error */
+static int Receive(CYASSL* ssl, byte* buf, word32 sz)
+{
+ int recvd;
+
+ if (ssl->ctx->CBIORecv == NULL) {
+ CYASSL_MSG("Your IO Recv callback is null, please set");
+ return -1;
+ }
+
+retry:
+ recvd = ssl->ctx->CBIORecv(ssl, (char *)buf, (int)sz, ssl->IOCB_ReadCtx);
+ if (recvd < 0)
+ switch (recvd) {
+ case CYASSL_CBIO_ERR_GENERAL: /* general/unknown error */
+ return -1;
+
+ case CYASSL_CBIO_ERR_WANT_READ: /* want read, would block */
+ return WANT_READ;
+
+ case CYASSL_CBIO_ERR_CONN_RST: /* connection reset */
+ #ifdef USE_WINDOWS_API
+ if (ssl->options.dtls) {
+ goto retry;
+ }
+ #endif
+ ssl->options.connReset = 1;
+ return -1;
+
+ case CYASSL_CBIO_ERR_ISR: /* interrupt */
+ /* see if we got our timeout */
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->toInfoOn) {
+ struct itimerval timeout;
+ getitimer(ITIMER_REAL, &timeout);
+ if (timeout.it_value.tv_sec == 0 &&
+ timeout.it_value.tv_usec == 0) {
+ XSTRNCPY(ssl->timeoutInfo.timeoutName,
+ "recv() timeout", MAX_TIMEOUT_NAME_SZ);
+ CYASSL_MSG("Got our timeout");
+ return WANT_READ;
+ }
+ }
+ #endif
+ goto retry;
+
+ case CYASSL_CBIO_ERR_CONN_CLOSE: /* peer closed connection */
+ ssl->options.isClosed = 1;
+ return -1;
+
+ case CYASSL_CBIO_ERR_TIMEOUT:
+#ifdef CYASSL_DTLS
+ if (DtlsPoolTimeout(ssl) == 0 && DtlsPoolSend(ssl) == 0)
+ goto retry;
+ else
+#endif
+ return -1;
+
+ default:
+ return recvd;
+ }
+
+ return recvd;
+}
+
+
+/* Switch dynamic output buffer back to static, buffer is assumed clear */
+void ShrinkOutputBuffer(CYASSL* ssl)
+{
+ CYASSL_MSG("Shrinking output buffer\n");
+ XFREE(ssl->buffers.outputBuffer.buffer - ssl->buffers.outputBuffer.offset,
+ ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
+ ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer;
+ ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN;
+ ssl->buffers.outputBuffer.dynamicFlag = 0;
+ ssl->buffers.outputBuffer.offset = 0;
+}
+
+
+/* Switch dynamic input buffer back to static, keep any remaining input */
+/* forced free means cleaning up */
+void ShrinkInputBuffer(CYASSL* ssl, int forcedFree)
+{
+ int usedLength = ssl->buffers.inputBuffer.length -
+ ssl->buffers.inputBuffer.idx;
+ if (!forcedFree && usedLength > STATIC_BUFFER_LEN)
+ return;
+
+ CYASSL_MSG("Shrinking input buffer\n");
+
+ if (!forcedFree && usedLength)
+ XMEMCPY(ssl->buffers.inputBuffer.staticBuffer,
+ ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx,
+ usedLength);
+
+ XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset,
+ ssl->heap, DYNAMIC_TYPE_IN_BUFFER);
+ ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer;
+ ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN;
+ ssl->buffers.inputBuffer.dynamicFlag = 0;
+ ssl->buffers.inputBuffer.offset = 0;
+ ssl->buffers.inputBuffer.idx = 0;
+ ssl->buffers.inputBuffer.length = usedLength;
+}
+
+
+int SendBuffered(CYASSL* ssl)
+{
+ if (ssl->ctx->CBIOSend == NULL) {
+ CYASSL_MSG("Your IO Send callback is null, please set");
+ return SOCKET_ERROR_E;
+ }
+
+ while (ssl->buffers.outputBuffer.length > 0) {
+ int sent = ssl->ctx->CBIOSend(ssl,
+ (char*)ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.idx,
+ (int)ssl->buffers.outputBuffer.length,
+ ssl->IOCB_WriteCtx);
+ if (sent < 0) {
+ switch (sent) {
+
+ case CYASSL_CBIO_ERR_WANT_WRITE: /* would block */
+ return WANT_WRITE;
+
+ case CYASSL_CBIO_ERR_CONN_RST: /* connection reset */
+ ssl->options.connReset = 1;
+ break;
+
+ case CYASSL_CBIO_ERR_ISR: /* interrupt */
+ /* see if we got our timeout */
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->toInfoOn) {
+ struct itimerval timeout;
+ getitimer(ITIMER_REAL, &timeout);
+ if (timeout.it_value.tv_sec == 0 &&
+ timeout.it_value.tv_usec == 0) {
+ XSTRNCPY(ssl->timeoutInfo.timeoutName,
+ "send() timeout", MAX_TIMEOUT_NAME_SZ);
+ CYASSL_MSG("Got our timeout");
+ return WANT_WRITE;
+ }
+ }
+ #endif
+ continue;
+
+ case CYASSL_CBIO_ERR_CONN_CLOSE: /* epipe / conn closed */
+ ssl->options.connReset = 1; /* treat same as reset */
+ break;
+
+ default:
+ return SOCKET_ERROR_E;
+ }
+
+ return SOCKET_ERROR_E;
+ }
+
+ ssl->buffers.outputBuffer.idx += sent;
+ ssl->buffers.outputBuffer.length -= sent;
+ }
+
+ ssl->buffers.outputBuffer.idx = 0;
+
+ if (ssl->buffers.outputBuffer.dynamicFlag)
+ ShrinkOutputBuffer(ssl);
+
+ return 0;
+}
+
+
+/* Grow the output buffer */
+static INLINE int GrowOutputBuffer(CYASSL* ssl, int size)
+{
+ byte* tmp;
+ byte hdrSz = ssl->options.dtls ? DTLS_RECORD_HEADER_SZ :
+ RECORD_HEADER_SZ;
+ byte align = CYASSL_GENERAL_ALIGNMENT;
+ /* the encrypted data will be offset from the front of the buffer by
+ the header, if the user wants encrypted alignment they need
+ to define their alignment requirement */
+
+ if (align) {
+ while (align < hdrSz)
+ align *= 2;
+ }
+
+ tmp = (byte*) XMALLOC(size + ssl->buffers.outputBuffer.length + align,
+ ssl->heap, DYNAMIC_TYPE_OUT_BUFFER);
+ CYASSL_MSG("growing output buffer\n");
+
+ if (!tmp) return MEMORY_E;
+ if (align)
+ tmp += align - hdrSz;
+
+ if (ssl->buffers.outputBuffer.length)
+ XMEMCPY(tmp, ssl->buffers.outputBuffer.buffer,
+ ssl->buffers.outputBuffer.length);
+
+ if (ssl->buffers.outputBuffer.dynamicFlag)
+ XFREE(ssl->buffers.outputBuffer.buffer -
+ ssl->buffers.outputBuffer.offset, ssl->heap,
+ DYNAMIC_TYPE_OUT_BUFFER);
+ ssl->buffers.outputBuffer.dynamicFlag = 1;
+ if (align)
+ ssl->buffers.outputBuffer.offset = align - hdrSz;
+ else
+ ssl->buffers.outputBuffer.offset = 0;
+ ssl->buffers.outputBuffer.buffer = tmp;
+ ssl->buffers.outputBuffer.bufferSize = size +
+ ssl->buffers.outputBuffer.length;
+ return 0;
+}
+
+
+/* Grow the input buffer, should only be to read cert or big app data */
+int GrowInputBuffer(CYASSL* ssl, int size, int usedLength)
+{
+ byte* tmp;
+ byte hdrSz = DTLS_RECORD_HEADER_SZ;
+ byte align = ssl->options.dtls ? CYASSL_GENERAL_ALIGNMENT : 0;
+ /* the encrypted data will be offset from the front of the buffer by
+ the dtls record header, if the user wants encrypted alignment they need
+ to define their alignment requirement. in tls we read record header
+ to get size of record and put actual data back at front, so don't need */
+
+ if (align) {
+ while (align < hdrSz)
+ align *= 2;
+ }
+ tmp = (byte*) XMALLOC(size + usedLength + align, ssl->heap,
+ DYNAMIC_TYPE_IN_BUFFER);
+ CYASSL_MSG("growing input buffer\n");
+
+ if (!tmp) return MEMORY_E;
+ if (align)
+ tmp += align - hdrSz;
+
+ if (usedLength)
+ XMEMCPY(tmp, ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx, usedLength);
+
+ if (ssl->buffers.inputBuffer.dynamicFlag)
+ XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset,
+ ssl->heap,DYNAMIC_TYPE_IN_BUFFER);
+
+ ssl->buffers.inputBuffer.dynamicFlag = 1;
+ if (align)
+ ssl->buffers.inputBuffer.offset = align - hdrSz;
+ else
+ ssl->buffers.inputBuffer.offset = 0;
+ ssl->buffers.inputBuffer.buffer = tmp;
+ ssl->buffers.inputBuffer.bufferSize = size + usedLength;
+ ssl->buffers.inputBuffer.idx = 0;
+ ssl->buffers.inputBuffer.length = usedLength;
+
+ return 0;
+}
+
+
+/* check available size into output buffer, make room if needed */
+int CheckAvailableSize(CYASSL *ssl, int size)
+{
+ if (ssl->buffers.outputBuffer.bufferSize - ssl->buffers.outputBuffer.length
+ < (word32)size) {
+ if (GrowOutputBuffer(ssl, size) < 0)
+ return MEMORY_E;
+ }
+
+ return 0;
+}
+
+
+/* do all verify and sanity checks on record header */
+static int GetRecordHeader(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ RecordLayerHeader* rh, word16 *size)
+{
+ if (!ssl->options.dtls) {
+ XMEMCPY(rh, input + *inOutIdx, RECORD_HEADER_SZ);
+ *inOutIdx += RECORD_HEADER_SZ;
+ ato16(rh->length, size);
+ }
+ else {
+#ifdef CYASSL_DTLS
+ /* type and version in same sport */
+ XMEMCPY(rh, input + *inOutIdx, ENUM_LEN + VERSION_SZ);
+ *inOutIdx += ENUM_LEN + VERSION_SZ;
+ ato16(input + *inOutIdx, &ssl->keys.dtls_state.curEpoch);
+ *inOutIdx += 4; /* advance past epoch, skip first 2 seq bytes for now */
+ ato32(input + *inOutIdx, &ssl->keys.dtls_state.curSeq);
+ *inOutIdx += 4; /* advance past rest of seq */
+ ato16(input + *inOutIdx, size);
+ *inOutIdx += LENGTH_SZ;
+#endif
+ }
+
+ /* catch version mismatch */
+ if ((rh->pvMajor != ssl->version.major) || (rh->pvMinor != ssl->version.minor)){
+ if (ssl->options.side == CYASSL_SERVER_END &&
+ ssl->options.acceptState == ACCEPT_BEGIN)
+ CYASSL_MSG("Client attempting to connect with different version");
+ else if (ssl->options.side == CYASSL_CLIENT_END &&
+ ssl->options.downgrade &&
+ ssl->options.connectState < FIRST_REPLY_DONE)
+ CYASSL_MSG("Server attempting to accept with different version");
+ else {
+ CYASSL_MSG("SSL version error");
+ return VERSION_ERROR; /* only use requested version */
+ }
+ }
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if (DtlsCheckWindow(&ssl->keys.dtls_state) != 1)
+ return SEQUENCE_ERROR;
+ }
+#endif
+
+ /* record layer length check */
+#ifdef HAVE_MAX_FRAGMENT
+ if (*size > (ssl->max_fragment + MAX_COMP_EXTRA + MAX_MSG_EXTRA))
+ return LENGTH_ERROR;
+#else
+ if (*size > (MAX_RECORD_SIZE + MAX_COMP_EXTRA + MAX_MSG_EXTRA))
+ return LENGTH_ERROR;
+#endif
+
+ /* verify record type here as well */
+ switch (rh->type) {
+ case handshake:
+ case change_cipher_spec:
+ case application_data:
+ case alert:
+ break;
+ case no_type:
+ default:
+ CYASSL_MSG("Unknown Record Type");
+ return UNKNOWN_RECORD_TYPE;
+ }
+
+ /* haven't decrypted this record yet */
+ ssl->keys.decryptedCur = 0;
+
+ return 0;
+}
+
+
+static int GetHandShakeHeader(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ byte *type, word32 *size)
+{
+ const byte *ptr = input + *inOutIdx;
+ (void)ssl;
+ *inOutIdx += HANDSHAKE_HEADER_SZ;
+
+ *type = ptr[0];
+ c24to32(&ptr[1], size);
+
+ return 0;
+}
+
+
+#ifdef CYASSL_DTLS
+static int GetDtlsHandShakeHeader(CYASSL* ssl, const byte* input,
+ word32* inOutIdx, byte *type, word32 *size,
+ word32 *fragOffset, word32 *fragSz)
+{
+ word32 idx = *inOutIdx;
+
+ *inOutIdx += HANDSHAKE_HEADER_SZ + DTLS_HANDSHAKE_EXTRA;
+
+ *type = input[idx++];
+ c24to32(input + idx, size);
+ idx += BYTE3_LEN;
+
+ ato16(input + idx, &ssl->keys.dtls_peer_handshake_number);
+ idx += DTLS_HANDSHAKE_SEQ_SZ;
+
+ c24to32(input + idx, fragOffset);
+ idx += DTLS_HANDSHAKE_FRAG_SZ;
+ c24to32(input + idx, fragSz);
+
+ return 0;
+}
+#endif
+
+
+#ifndef NO_OLD_TLS
+/* fill with MD5 pad size since biggest required */
+static const byte PAD1[PAD_MD5] =
+ { 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36
+ };
+static const byte PAD2[PAD_MD5] =
+ { 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c
+ };
+
+/* calculate MD5 hash for finished */
+static void BuildMD5(CYASSL* ssl, Hashes* hashes, const byte* sender)
+{
+ byte md5_result[MD5_DIGEST_SIZE];
+
+ /* make md5 inner */
+ Md5Update(&ssl->hashMd5, sender, SIZEOF_SENDER);
+ Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
+ Md5Update(&ssl->hashMd5, PAD1, PAD_MD5);
+ Md5Final(&ssl->hashMd5, md5_result);
+
+ /* make md5 outer */
+ Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
+ Md5Update(&ssl->hashMd5, PAD2, PAD_MD5);
+ Md5Update(&ssl->hashMd5, md5_result, MD5_DIGEST_SIZE);
+
+ Md5Final(&ssl->hashMd5, hashes->md5);
+}
+
+
+/* calculate SHA hash for finished */
+static void BuildSHA(CYASSL* ssl, Hashes* hashes, const byte* sender)
+{
+ byte sha_result[SHA_DIGEST_SIZE];
+
+ /* make sha inner */
+ ShaUpdate(&ssl->hashSha, sender, SIZEOF_SENDER);
+ ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
+ ShaUpdate(&ssl->hashSha, PAD1, PAD_SHA);
+ ShaFinal(&ssl->hashSha, sha_result);
+
+ /* make sha outer */
+ ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
+ ShaUpdate(&ssl->hashSha, PAD2, PAD_SHA);
+ ShaUpdate(&ssl->hashSha, sha_result, SHA_DIGEST_SIZE);
+
+ ShaFinal(&ssl->hashSha, hashes->sha);
+}
+#endif
+
+
+static int BuildFinished(CYASSL* ssl, Hashes* hashes, const byte* sender)
+{
+ /* store current states, building requires get_digest which resets state */
+#ifndef NO_OLD_TLS
+#ifndef NO_MD5
+ Md5 md5 = ssl->hashMd5;
+#endif
+#ifndef NO_SHA
+ Sha sha = ssl->hashSha;
+#endif
+#endif
+#ifndef NO_SHA256
+ Sha256 sha256 = ssl->hashSha256;
+#endif
+#ifdef CYASSL_SHA384
+ Sha384 sha384 = ssl->hashSha384;
+#endif
+
+ int ret = 0;
+
+#ifndef NO_TLS
+ if (ssl->options.tls) {
+ ret = BuildTlsFinished(ssl, hashes, sender);
+ }
+#endif
+#ifndef NO_OLD_TLS
+ if (!ssl->options.tls) {
+ BuildMD5(ssl, hashes, sender);
+ BuildSHA(ssl, hashes, sender);
+ }
+#endif
+
+ /* restore */
+#ifndef NO_OLD_TLS
+ #ifndef NO_MD5
+ ssl->hashMd5 = md5;
+ #endif
+ #ifndef NO_SHA
+ ssl->hashSha = sha;
+ #endif
+#endif
+ if (IsAtLeastTLSv1_2(ssl)) {
+ #ifndef NO_SHA256
+ ssl->hashSha256 = sha256;
+ #endif
+ #ifdef CYASSL_SHA384
+ ssl->hashSha384 = sha384;
+ #endif
+ }
+
+ return ret;
+}
+
+
+#ifndef NO_CERTS
+
+
+/* Match names with wildcards, each wildcard can represent a single name
+ component or fragment but not mulitple names, i.e.,
+ *.z.com matches y.z.com but not x.y.z.com
+
+ return 1 on success */
+static int MatchDomainName(const char* pattern, int len, const char* str)
+{
+ char p, s;
+
+ if (pattern == NULL || str == NULL || len <= 0)
+ return 0;
+
+ while (len > 0) {
+
+ p = (char)XTOLOWER(*pattern++);
+ if (p == 0)
+ break;
+
+ if (p == '*') {
+ while (--len > 0 && (p = (char)XTOLOWER(*pattern++)) == '*')
+ ;
+
+ if (len == 0)
+ p = '\0';
+
+ while ( (s = (char)XTOLOWER(*str)) != '\0') {
+ if (s == p)
+ break;
+ if (s == '.')
+ return 0;
+ str++;
+ }
+ }
+ else {
+ if (p != (char)XTOLOWER(*str))
+ return 0;
+ }
+
+ if (*str != '\0')
+ str++;
+
+ if (len > 0)
+ len--;
+ }
+
+ return *str == '\0';
+}
+
+
+/* try to find an altName match to domain, return 1 on success */
+static int CheckAltNames(DecodedCert* dCert, char* domain)
+{
+ int match = 0;
+ DNS_entry* altName = NULL;
+
+ CYASSL_MSG("Checking AltNames");
+
+ if (dCert)
+ altName = dCert->altNames;
+
+ while (altName) {
+ CYASSL_MSG(" individual AltName check");
+
+ if (MatchDomainName(altName->name,(int)XSTRLEN(altName->name), domain)){
+ match = 1;
+ break;
+ }
+
+ altName = altName->next;
+ }
+
+ return match;
+}
+
+
+#if defined(KEEP_PEER_CERT) || defined(SESSION_CERTS)
+
+/* Copy parts X509 needs from Decoded cert, 0 on success */
+int CopyDecodedToX509(CYASSL_X509* x509, DecodedCert* dCert)
+{
+ int ret = 0;
+
+ if (x509 == NULL || dCert == NULL)
+ return BAD_FUNC_ARG;
+
+ x509->version = dCert->version + 1;
+
+ XSTRNCPY(x509->issuer.name, dCert->issuer, ASN_NAME_MAX);
+ x509->issuer.name[ASN_NAME_MAX - 1] = '\0';
+ x509->issuer.sz = (int)XSTRLEN(x509->issuer.name) + 1;
+#ifdef OPENSSL_EXTRA
+ if (dCert->issuerName.fullName != NULL) {
+ XMEMCPY(&x509->issuer.fullName,
+ &dCert->issuerName, sizeof(DecodedName));
+ x509->issuer.fullName.fullName = (char*)XMALLOC(
+ dCert->issuerName.fullNameLen, NULL, DYNAMIC_TYPE_X509);
+ if (x509->issuer.fullName.fullName != NULL)
+ XMEMCPY(x509->issuer.fullName.fullName,
+ dCert->issuerName.fullName, dCert->issuerName.fullNameLen);
+ }
+#endif /* OPENSSL_EXTRA */
+
+ XSTRNCPY(x509->subject.name, dCert->subject, ASN_NAME_MAX);
+ x509->subject.name[ASN_NAME_MAX - 1] = '\0';
+ x509->subject.sz = (int)XSTRLEN(x509->subject.name) + 1;
+#ifdef OPENSSL_EXTRA
+ if (dCert->subjectName.fullName != NULL) {
+ XMEMCPY(&x509->subject.fullName,
+ &dCert->subjectName, sizeof(DecodedName));
+ x509->subject.fullName.fullName = (char*)XMALLOC(
+ dCert->subjectName.fullNameLen, NULL, DYNAMIC_TYPE_X509);
+ if (x509->subject.fullName.fullName != NULL)
+ XMEMCPY(x509->subject.fullName.fullName,
+ dCert->subjectName.fullName, dCert->subjectName.fullNameLen);
+ }
+#endif /* OPENSSL_EXTRA */
+
+ XMEMCPY(x509->serial, dCert->serial, EXTERNAL_SERIAL_SIZE);
+ x509->serialSz = dCert->serialSz;
+ if (dCert->subjectCNLen < ASN_NAME_MAX) {
+ XMEMCPY(x509->subjectCN, dCert->subjectCN, dCert->subjectCNLen);
+ x509->subjectCN[dCert->subjectCNLen] = '\0';
+ }
+ else
+ x509->subjectCN[0] = '\0';
+
+#ifdef CYASSL_SEP
+ {
+ int minSz = min(dCert->deviceTypeSz, EXTERNAL_SERIAL_SIZE);
+ if (minSz > 0) {
+ x509->deviceTypeSz = minSz;
+ XMEMCPY(x509->deviceType, dCert->deviceType, minSz);
+ }
+ else
+ x509->deviceTypeSz = 0;
+ minSz = min(dCert->hwTypeSz, EXTERNAL_SERIAL_SIZE);
+ if (minSz != 0) {
+ x509->hwTypeSz = minSz;
+ XMEMCPY(x509->hwType, dCert->hwType, minSz);
+ }
+ else
+ x509->hwTypeSz = 0;
+ minSz = min(dCert->hwSerialNumSz, EXTERNAL_SERIAL_SIZE);
+ if (minSz != 0) {
+ x509->hwSerialNumSz = minSz;
+ XMEMCPY(x509->hwSerialNum, dCert->hwSerialNum, minSz);
+ }
+ else
+ x509->hwSerialNumSz = 0;
+ }
+#endif /* CYASSL_SEP */
+ {
+ int minSz = min(dCert->beforeDateLen, MAX_DATE_SZ);
+ if (minSz != 0) {
+ x509->notBeforeSz = minSz;
+ XMEMCPY(x509->notBefore, dCert->beforeDate, minSz);
+ }
+ else
+ x509->notBeforeSz = 0;
+ minSz = min(dCert->afterDateLen, MAX_DATE_SZ);
+ if (minSz != 0) {
+ x509->notAfterSz = minSz;
+ XMEMCPY(x509->notAfter, dCert->afterDate, minSz);
+ }
+ else
+ x509->notAfterSz = 0;
+ }
+
+ if (dCert->publicKey != NULL && dCert->pubKeySize != 0) {
+ x509->pubKey.buffer = (byte*)XMALLOC(
+ dCert->pubKeySize, NULL, DYNAMIC_TYPE_PUBLIC_KEY);
+ if (x509->pubKey.buffer != NULL) {
+ x509->pubKeyOID = dCert->keyOID;
+ x509->pubKey.length = dCert->pubKeySize;
+ XMEMCPY(x509->pubKey.buffer, dCert->publicKey, dCert->pubKeySize);
+ }
+ else
+ ret = MEMORY_E;
+ }
+
+ if (dCert->signature != NULL && dCert->sigLength != 0) {
+ x509->sig.buffer = (byte*)XMALLOC(
+ dCert->sigLength, NULL, DYNAMIC_TYPE_SIGNATURE);
+ if (x509->sig.buffer == NULL) {
+ ret = MEMORY_E;
+ }
+ else {
+ XMEMCPY(x509->sig.buffer, dCert->signature, dCert->sigLength);
+ x509->sig.length = dCert->sigLength;
+ x509->sigOID = dCert->signatureOID;
+ }
+ }
+
+ /* store cert for potential retrieval */
+ x509->derCert.buffer = (byte*)XMALLOC(dCert->maxIdx, NULL,
+ DYNAMIC_TYPE_CERT);
+ if (x509->derCert.buffer == NULL) {
+ ret = MEMORY_E;
+ }
+ else {
+ XMEMCPY(x509->derCert.buffer, dCert->source, dCert->maxIdx);
+ x509->derCert.length = dCert->maxIdx;
+ }
+
+ x509->altNames = dCert->altNames;
+ dCert->altNames = NULL; /* takes ownership */
+ x509->altNamesNext = x509->altNames; /* index hint */
+
+ x509->isCa = dCert->isCA;
+#ifdef OPENSSL_EXTRA
+ x509->pathLength = dCert->pathLength;
+ x509->keyUsage = dCert->extKeyUsage;
+
+ x509->basicConstSet = dCert->extBasicConstSet;
+ x509->basicConstCrit = dCert->extBasicConstCrit;
+ x509->basicConstPlSet = dCert->extBasicConstPlSet;
+ x509->subjAltNameSet = dCert->extSubjAltNameSet;
+ x509->subjAltNameCrit = dCert->extSubjAltNameCrit;
+ x509->authKeyIdSet = dCert->extAuthKeyIdSet;
+ x509->authKeyIdCrit = dCert->extAuthKeyIdCrit;
+ if (dCert->extAuthKeyIdSrc != NULL && dCert->extAuthKeyIdSz != 0) {
+ x509->authKeyId = (byte*)XMALLOC(dCert->extAuthKeyIdSz, NULL, 0);
+ if (x509->authKeyId != NULL) {
+ XMEMCPY(x509->authKeyId,
+ dCert->extAuthKeyIdSrc, dCert->extAuthKeyIdSz);
+ x509->authKeyIdSz = dCert->extAuthKeyIdSz;
+ }
+ else
+ ret = MEMORY_E;
+ }
+ x509->subjKeyIdSet = dCert->extSubjKeyIdSet;
+ x509->subjKeyIdCrit = dCert->extSubjKeyIdCrit;
+ if (dCert->extSubjKeyIdSrc != NULL && dCert->extSubjKeyIdSz != 0) {
+ x509->subjKeyId = (byte*)XMALLOC(dCert->extSubjKeyIdSz, NULL, 0);
+ if (x509->subjKeyId != NULL) {
+ XMEMCPY(x509->subjKeyId,
+ dCert->extSubjKeyIdSrc, dCert->extSubjKeyIdSz);
+ x509->subjKeyIdSz = dCert->extSubjKeyIdSz;
+ }
+ else
+ ret = MEMORY_E;
+ }
+ x509->keyUsageSet = dCert->extKeyUsageSet;
+ x509->keyUsageCrit = dCert->extKeyUsageCrit;
+ #ifdef CYASSL_SEP
+ x509->certPolicySet = dCert->extCertPolicySet;
+ x509->certPolicyCrit = dCert->extCertPolicyCrit;
+ #endif /* CYASSL_SEP */
+#endif /* OPENSSL_EXTRA */
+#ifdef HAVE_ECC
+ x509->pkCurveOID = dCert->pkCurveOID;
+#endif /* HAVE_ECC */
+
+ return ret;
+}
+
+#endif /* KEEP_PEER_CERT || SESSION_CERTS */
+
+
+static int DoCertificate(CYASSL* ssl, byte* input, word32* inOutIdx,
+ word32 size)
+{
+ word32 listSz, begin = *inOutIdx;
+ int ret = 0;
+ int anyError = 0;
+ int totalCerts = 0; /* number of certs in certs buffer */
+ int count;
+ char domain[ASN_NAME_MAX];
+ buffer certs[MAX_CHAIN_DEPTH];
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("Certificate", &ssl->handShakeInfo);
+ if (ssl->toInfoOn) AddLateName("Certificate", &ssl->timeoutInfo);
+ #endif
+
+ if ((*inOutIdx - begin) + OPAQUE24_LEN > size)
+ return BUFFER_ERROR;
+
+ c24to32(input + *inOutIdx, &listSz);
+ *inOutIdx += OPAQUE24_LEN;
+
+#ifdef HAVE_MAX_FRAGMENT
+ if (listSz > ssl->max_fragment)
+ return BUFFER_E;
+#else
+ if (listSz > MAX_RECORD_SIZE)
+ return BUFFER_E;
+#endif
+
+ if ((*inOutIdx - begin) + listSz != size)
+ return BUFFER_ERROR;
+
+ CYASSL_MSG("Loading peer's cert chain");
+ /* first put cert chain into buffer so can verify top down
+ we're sent bottom up */
+ while (listSz) {
+ word32 certSz;
+
+ if (totalCerts >= MAX_CHAIN_DEPTH)
+ return MAX_CHAIN_ERROR;
+
+ if ((*inOutIdx - begin) + OPAQUE24_LEN > size)
+ return BUFFER_ERROR;
+
+ c24to32(input + *inOutIdx, &certSz);
+ *inOutIdx += OPAQUE24_LEN;
+
+ if ((*inOutIdx - begin) + certSz > size)
+ return BUFFER_ERROR;
+
+ certs[totalCerts].length = certSz;
+ certs[totalCerts].buffer = input + *inOutIdx;
+
+#ifdef SESSION_CERTS
+ if (ssl->session.chain.count < MAX_CHAIN_DEPTH &&
+ certSz < MAX_X509_SIZE) {
+ ssl->session.chain.certs[ssl->session.chain.count].length = certSz;
+ XMEMCPY(ssl->session.chain.certs[ssl->session.chain.count].buffer,
+ input + *inOutIdx, certSz);
+ ssl->session.chain.count++;
+ } else {
+ CYASSL_MSG("Couldn't store chain cert for session");
+ }
+#endif
+
+ *inOutIdx += certSz;
+ listSz -= certSz + CERT_HEADER_SZ;
+
+ totalCerts++;
+ CYASSL_MSG(" Put another cert into chain");
+ }
+
+ count = totalCerts;
+
+ /* verify up to peer's first */
+ while (count > 1) {
+ buffer myCert = certs[count - 1];
+ DecodedCert dCert;
+ byte* subjectHash;
+
+ InitDecodedCert(&dCert, myCert.buffer, myCert.length, ssl->heap);
+ ret = ParseCertRelative(&dCert, CERT_TYPE, !ssl->options.verifyNone,
+ ssl->ctx->cm);
+ #ifndef NO_SKID
+ subjectHash = dCert.extSubjKeyId;
+ #else
+ subjectHash = dCert.subjectHash;
+ #endif
+
+ if (ret == 0 && dCert.isCA == 0) {
+ CYASSL_MSG("Chain cert is not a CA, not adding as one");
+ }
+ else if (ret == 0 && ssl->options.verifyNone) {
+ CYASSL_MSG("Chain cert not verified by option, not adding as CA");
+ }
+ else if (ret == 0 && !AlreadySigner(ssl->ctx->cm, subjectHash)) {
+ buffer add;
+ add.length = myCert.length;
+ add.buffer = (byte*)XMALLOC(myCert.length, ssl->heap,
+ DYNAMIC_TYPE_CA);
+ CYASSL_MSG("Adding CA from chain");
+
+ if (add.buffer == NULL)
+ return MEMORY_E;
+ XMEMCPY(add.buffer, myCert.buffer, myCert.length);
+
+ ret = AddCA(ssl->ctx->cm, add, CYASSL_CHAIN_CA,
+ ssl->ctx->verifyPeer);
+ if (ret == 1) ret = 0; /* SSL_SUCCESS for external */
+ }
+ else if (ret != 0) {
+ CYASSL_MSG("Failed to verify CA from chain");
+ }
+ else {
+ CYASSL_MSG("Verified CA from chain and already had it");
+ }
+
+#ifdef HAVE_CRL
+ if (ret == 0 && ssl->ctx->cm->crlEnabled && ssl->ctx->cm->crlCheckAll) {
+ CYASSL_MSG("Doing Non Leaf CRL check");
+ ret = CheckCertCRL(ssl->ctx->cm->crl, &dCert);
+
+ if (ret != 0) {
+ CYASSL_MSG("\tCRL check not ok");
+ }
+ }
+#endif /* HAVE_CRL */
+
+ if (ret != 0 && anyError == 0)
+ anyError = ret; /* save error from last time */
+
+ FreeDecodedCert(&dCert);
+ count--;
+ }
+
+ /* peer's, may not have one if blank client cert sent by TLSv1.2 */
+ if (count) {
+ buffer myCert = certs[0];
+ DecodedCert dCert;
+ int fatal = 0;
+
+ CYASSL_MSG("Verifying Peer's cert");
+
+ InitDecodedCert(&dCert, myCert.buffer, myCert.length, ssl->heap);
+ ret = ParseCertRelative(&dCert, CERT_TYPE, !ssl->options.verifyNone,
+ ssl->ctx->cm);
+ if (ret == 0) {
+ CYASSL_MSG("Verified Peer's cert");
+ fatal = 0;
+ }
+ else if (ret == ASN_PARSE_E) {
+ CYASSL_MSG("Got Peer cert ASN PARSE ERROR, fatal");
+ fatal = 1;
+ }
+ else {
+ CYASSL_MSG("Failed to verify Peer's cert");
+ if (ssl->verifyCallback) {
+ CYASSL_MSG("\tCallback override available, will continue");
+ fatal = 0;
+ }
+ else {
+ CYASSL_MSG("\tNo callback override available, fatal");
+ fatal = 1;
+ }
+ }
+
+#ifdef HAVE_OCSP
+ if (fatal == 0 && ssl->ctx->cm->ocspEnabled) {
+ ret = CheckCertOCSP(ssl->ctx->cm->ocsp, &dCert);
+ if (ret != 0) {
+ CYASSL_MSG("\tOCSP Lookup not ok");
+ fatal = 0;
+ }
+ }
+#endif
+
+#ifdef HAVE_CRL
+ if (fatal == 0 && ssl->ctx->cm->crlEnabled) {
+ int doCrlLookup = 1;
+
+ #ifdef HAVE_OCSP
+ if (ssl->ctx->cm->ocspEnabled) {
+ doCrlLookup = (ret == OCSP_CERT_UNKNOWN);
+ }
+ #endif /* HAVE_OCSP */
+
+ if (doCrlLookup) {
+ CYASSL_MSG("Doing Leaf CRL check");
+ ret = CheckCertCRL(ssl->ctx->cm->crl, &dCert);
+
+ if (ret != 0) {
+ CYASSL_MSG("\tCRL check not ok");
+ fatal = 0;
+ }
+ }
+ }
+
+#endif /* HAVE_CRL */
+
+#ifdef KEEP_PEER_CERT
+ {
+ /* set X509 format for peer cert even if fatal */
+ int copyRet = CopyDecodedToX509(&ssl->peerCert, &dCert);
+ if (copyRet == MEMORY_E)
+ fatal = 1;
+ }
+#endif
+
+#ifndef IGNORE_KEY_EXTENSIONS
+ if (dCert.extKeyUsageSet) {
+ if ((ssl->specs.kea == rsa_kea) &&
+ (dCert.extKeyUsage & KEYUSE_KEY_ENCIPHER) == 0) {
+ ret = KEYUSE_ENCIPHER_E;
+ }
+ if ((ssl->specs.sig_algo == rsa_sa_algo ||
+ ssl->specs.sig_algo == ecc_dsa_sa_algo) &&
+ (dCert.extKeyUsage & KEYUSE_DIGITAL_SIG) == 0) {
+ CYASSL_MSG("KeyUse Digital Sig not set");
+ ret = KEYUSE_SIGNATURE_E;
+ }
+ }
+
+ if (dCert.extExtKeyUsageSet) {
+ if (ssl->options.side == CYASSL_CLIENT_END) {
+ if ((dCert.extExtKeyUsage &
+ (EXTKEYUSE_ANY | EXTKEYUSE_SERVER_AUTH)) == 0) {
+ CYASSL_MSG("ExtKeyUse Server Auth not set");
+ ret = EXTKEYUSE_AUTH_E;
+ }
+ }
+ else {
+ if ((dCert.extExtKeyUsage &
+ (EXTKEYUSE_ANY | EXTKEYUSE_CLIENT_AUTH)) == 0) {
+ CYASSL_MSG("ExtKeyUse Client Auth not set");
+ ret = EXTKEYUSE_AUTH_E;
+ }
+ }
+ }
+#endif /* IGNORE_KEY_EXTENSIONS */
+
+ if (fatal) {
+ FreeDecodedCert(&dCert);
+ ssl->error = ret;
+ return ret;
+ }
+ ssl->options.havePeerCert = 1;
+
+ /* store for callback use */
+ if (dCert.subjectCNLen < ASN_NAME_MAX) {
+ XMEMCPY(domain, dCert.subjectCN, dCert.subjectCNLen);
+ domain[dCert.subjectCNLen] = '\0';
+ }
+ else
+ domain[0] = '\0';
+
+ if (!ssl->options.verifyNone && ssl->buffers.domainName.buffer) {
+ if (MatchDomainName(dCert.subjectCN, dCert.subjectCNLen,
+ (char*)ssl->buffers.domainName.buffer) == 0) {
+ CYASSL_MSG("DomainName match on common name failed");
+ if (CheckAltNames(&dCert,
+ (char*)ssl->buffers.domainName.buffer) == 0 ) {
+ CYASSL_MSG("DomainName match on alt names failed too");
+ ret = DOMAIN_NAME_MISMATCH; /* try to get peer key still */
+ }
+ }
+ }
+
+ /* decode peer key */
+ switch (dCert.keyOID) {
+ #ifndef NO_RSA
+ case RSAk:
+ {
+ word32 idx = 0;
+ if (RsaPublicKeyDecode(dCert.publicKey, &idx,
+ ssl->peerRsaKey, dCert.pubKeySize) != 0) {
+ ret = PEER_KEY_ERROR;
+ }
+ else {
+ ssl->peerRsaKeyPresent = 1;
+ #ifdef HAVE_PK_CALLBACKS
+ #ifndef NO_RSA
+ ssl->buffers.peerRsaKey.buffer =
+ XMALLOC(dCert.pubKeySize,
+ ssl->heap, DYNAMIC_TYPE_RSA);
+ if (ssl->buffers.peerRsaKey.buffer == NULL)
+ ret = MEMORY_ERROR;
+ else {
+ XMEMCPY(ssl->buffers.peerRsaKey.buffer,
+ dCert.publicKey, dCert.pubKeySize);
+ ssl->buffers.peerRsaKey.length =
+ dCert.pubKeySize;
+ }
+ #endif /* NO_RSA */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ }
+ break;
+ #endif /* NO_RSA */
+ #ifdef HAVE_NTRU
+ case NTRUk:
+ {
+ if (dCert.pubKeySize > sizeof(ssl->peerNtruKey)) {
+ ret = PEER_KEY_ERROR;
+ }
+ else {
+ XMEMCPY(ssl->peerNtruKey, dCert.publicKey, dCert.pubKeySize);
+ ssl->peerNtruKeyLen = (word16)dCert.pubKeySize;
+ ssl->peerNtruKeyPresent = 1;
+ }
+ }
+ break;
+ #endif /* HAVE_NTRU */
+ #ifdef HAVE_ECC
+ case ECDSAk:
+ {
+ if (ecc_import_x963(dCert.publicKey, dCert.pubKeySize,
+ ssl->peerEccDsaKey) != 0) {
+ ret = PEER_KEY_ERROR;
+ }
+ else {
+ ssl->peerEccDsaKeyPresent = 1;
+ #ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ssl->buffers.peerEccDsaKey.buffer =
+ XMALLOC(dCert.pubKeySize,
+ ssl->heap, DYNAMIC_TYPE_ECC);
+ if (ssl->buffers.peerEccDsaKey.buffer == NULL)
+ ret = MEMORY_ERROR;
+ else {
+ XMEMCPY(ssl->buffers.peerEccDsaKey.buffer,
+ dCert.publicKey, dCert.pubKeySize);
+ ssl->buffers.peerEccDsaKey.length =
+ dCert.pubKeySize;
+ }
+ #endif /* HAVE_ECC */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ }
+ break;
+ #endif /* HAVE_ECC */
+ default:
+ break;
+ }
+
+ FreeDecodedCert(&dCert);
+ }
+
+ if (anyError != 0 && ret == 0)
+ ret = anyError;
+
+ if (ret == 0 && ssl->options.side == CYASSL_CLIENT_END)
+ ssl->options.serverState = SERVER_CERT_COMPLETE;
+
+ if (ret != 0) {
+ if (!ssl->options.verifyNone) {
+ int why = bad_certificate;
+ if (ret == ASN_AFTER_DATE_E || ret == ASN_BEFORE_DATE_E)
+ why = certificate_expired;
+ if (ssl->verifyCallback) {
+ int ok;
+ CYASSL_X509_STORE_CTX store;
+
+ store.error = ret;
+ store.error_depth = totalCerts;
+ store.discardSessionCerts = 0;
+ store.domain = domain;
+ store.userCtx = ssl->verifyCbCtx;
+#ifdef KEEP_PEER_CERT
+ store.current_cert = &ssl->peerCert;
+#else
+ store.current_cert = NULL;
+#endif
+#ifdef FORTRESS
+ store.ex_data = ssl;
+#endif
+ ok = ssl->verifyCallback(0, &store);
+ if (ok) {
+ CYASSL_MSG("Verify callback overriding error!");
+ ret = 0;
+ }
+ #ifdef SESSION_CERTS
+ if (store.discardSessionCerts) {
+ CYASSL_MSG("Verify callback requested discard sess certs");
+ ssl->session.chain.count = 0;
+ }
+ #endif
+ }
+ if (ret != 0) {
+ SendAlert(ssl, alert_fatal, why); /* try to send */
+ ssl->options.isClosed = 1;
+ }
+ }
+ ssl->error = ret;
+ }
+#ifdef CYASSL_ALWAYS_VERIFY_CB
+ else {
+ if (ssl->verifyCallback) {
+ int ok;
+ CYASSL_X509_STORE_CTX store;
+
+ store.error = ret;
+ store.error_depth = totalCerts;
+ store.discardSessionCerts = 0;
+ store.domain = domain;
+ store.userCtx = ssl->verifyCbCtx;
+#ifdef KEEP_PEER_CERT
+ store.current_cert = &ssl->peerCert;
+#endif
+ store.ex_data = ssl;
+
+ ok = ssl->verifyCallback(1, &store);
+ if (!ok) {
+ CYASSL_MSG("Verify callback overriding valid certificate!");
+ ret = -1;
+ SendAlert(ssl, alert_fatal, bad_certificate);
+ ssl->options.isClosed = 1;
+ }
+ #ifdef SESSION_CERTS
+ if (store.discardSessionCerts) {
+ CYASSL_MSG("Verify callback requested discard sess certs");
+ ssl->session.chain.count = 0;
+ }
+ #endif
+ }
+ }
+#endif
+
+ return ret;
+}
+
+#endif /* !NO_CERTS */
+
+
+static int DoHelloRequest(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ word32 size, word32 totalSz)
+{
+ int ret = 0;
+
+ if (size) /* must be 0 */
+ return BUFFER_ERROR;
+
+ if (ssl->keys.encryptionOn) {
+ byte verify[MAX_DIGEST_SIZE];
+ int padSz = ssl->keys.encryptSz - HANDSHAKE_HEADER_SZ -
+ ssl->specs.hash_size;
+
+ ret = ssl->hmac(ssl, verify, input + *inOutIdx - HANDSHAKE_HEADER_SZ,
+ HANDSHAKE_HEADER_SZ, handshake, 1);
+ if (ret != 0)
+ return ret;
+
+ if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
+ padSz -= ssl->specs.block_size;
+
+ /* access beyond input + size should be checked against totalSz */
+ if ((word32) (*inOutIdx + ssl->specs.hash_size + padSz) > totalSz)
+ return INCOMPLETE_DATA;
+
+ /* verify */
+ if (XMEMCMP(input + *inOutIdx, verify, ssl->specs.hash_size) != 0) {
+ CYASSL_MSG(" hello_request verify mac error");
+ return VERIFY_MAC_ERROR;
+ }
+
+ *inOutIdx += ssl->specs.hash_size + padSz;
+ }
+
+ if (ssl->options.side == CYASSL_SERVER_END) {
+ SendAlert(ssl, alert_fatal, unexpected_message); /* try */
+ return FATAL_ERROR;
+ }
+ else
+ return SendAlert(ssl, alert_warning, no_renegotiation);
+}
+
+
+int DoFinished(CYASSL* ssl, const byte* input, word32* inOutIdx, word32 size,
+ word32 totalSz, int sniff)
+{
+ word32 finishedSz = (ssl->options.tls ? TLS_FINISHED_SZ : FINISHED_SZ);
+
+ if (finishedSz != size)
+ return BUFFER_ERROR;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("Finished", &ssl->handShakeInfo);
+ if (ssl->toInfoOn) AddLateName("Finished", &ssl->timeoutInfo);
+ #endif
+
+ if (sniff == NO_SNIFF) {
+ if (XMEMCMP(input + *inOutIdx, &ssl->verifyHashes, size) != 0) {
+ CYASSL_MSG("Verify finished error on hashes");
+ return VERIFY_FINISHED_ERROR;
+ }
+ }
+
+ /* increment beyond input + size should be checked against totalSz */
+ if (*inOutIdx + size + ssl->keys.padSz > totalSz)
+ return INCOMPLETE_DATA;
+
+ /* force input exhaustion at ProcessReply consuming padSz */
+ *inOutIdx += size + ssl->keys.padSz;
+
+ if (ssl->options.side == CYASSL_CLIENT_END) {
+ ssl->options.serverState = SERVER_FINISHED_COMPLETE;
+ if (!ssl->options.resuming) {
+ ssl->options.handShakeState = HANDSHAKE_DONE;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ /* Other side has received our Finished, go to next epoch */
+ ssl->keys.dtls_epoch++;
+ ssl->keys.dtls_sequence_number = 1;
+ }
+#endif
+ }
+ }
+ else {
+ ssl->options.clientState = CLIENT_FINISHED_COMPLETE;
+ if (ssl->options.resuming) {
+ ssl->options.handShakeState = HANDSHAKE_DONE;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ /* Other side has received our Finished, go to next epoch */
+ ssl->keys.dtls_epoch++;
+ ssl->keys.dtls_sequence_number = 1;
+ }
+#endif
+ }
+ }
+
+ return 0;
+}
+
+
+static int DoHandShakeMsgType(CYASSL* ssl, byte* input, word32* inOutIdx,
+ byte type, word32 size, word32 totalSz)
+{
+ int ret = 0;
+ (void)totalSz;
+
+ CYASSL_ENTER("DoHandShakeMsgType");
+
+ /* make sure can read the message */
+ if (*inOutIdx + size > totalSz)
+ return INCOMPLETE_DATA;
+
+ ret = HashInput(ssl, input + *inOutIdx, size);
+ if (ret != 0)
+ return ret;
+
+#ifdef CYASSL_CALLBACKS
+ /* add name later, add on record and handshake header part back on */
+ if (ssl->toInfoOn) {
+ int add = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ AddPacketInfo(0, &ssl->timeoutInfo, input + *inOutIdx - add,
+ size + add, ssl->heap);
+ AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo);
+ }
+#endif
+
+ if (ssl->options.handShakeState == HANDSHAKE_DONE && type != hello_request){
+ CYASSL_MSG("HandShake message after handshake complete");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+ if (ssl->options.side == CYASSL_CLIENT_END && ssl->options.dtls == 0 &&
+ ssl->options.serverState == NULL_STATE && type != server_hello) {
+ CYASSL_MSG("First server message not server hello");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+ if (ssl->options.side == CYASSL_CLIENT_END && ssl->options.dtls &&
+ type == server_hello_done &&
+ ssl->options.serverState < SERVER_HELLO_COMPLETE) {
+ CYASSL_MSG("Server hello done received before server hello in DTLS");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+ if (ssl->options.side == CYASSL_SERVER_END &&
+ ssl->options.clientState == NULL_STATE && type != client_hello) {
+ CYASSL_MSG("First client message not client hello");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+
+ switch (type) {
+
+ case hello_request:
+ CYASSL_MSG("processing hello request");
+ ret = DoHelloRequest(ssl, input, inOutIdx, size, totalSz);
+ break;
+
+#ifndef NO_CYASSL_CLIENT
+ case hello_verify_request:
+ CYASSL_MSG("processing hello verify request");
+ ret = DoHelloVerifyRequest(ssl, input,inOutIdx, size);
+ break;
+
+ case server_hello:
+ CYASSL_MSG("processing server hello");
+ ret = DoServerHello(ssl, input, inOutIdx, size);
+ break;
+
+#ifndef NO_CERTS
+ case certificate_request:
+ CYASSL_MSG("processing certificate request");
+ ret = DoCertificateRequest(ssl, input, inOutIdx, size);
+ break;
+#endif
+
+ case server_key_exchange:
+ CYASSL_MSG("processing server key exchange");
+ ret = DoServerKeyExchange(ssl, input, inOutIdx, size);
+ break;
+#endif
+
+#ifndef NO_CERTS
+ case certificate:
+ CYASSL_MSG("processing certificate");
+ ret = DoCertificate(ssl, input, inOutIdx, size);
+ break;
+#endif
+
+ case server_hello_done:
+ CYASSL_MSG("processing server hello done");
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerHelloDone", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("ServerHelloDone", &ssl->timeoutInfo);
+ #endif
+ ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
+ break;
+
+ case finished:
+ CYASSL_MSG("processing finished");
+ ret = DoFinished(ssl, input, inOutIdx, size, totalSz, NO_SNIFF);
+ break;
+
+#ifndef NO_CYASSL_SERVER
+ case client_hello:
+ CYASSL_MSG("processing client hello");
+ ret = DoClientHello(ssl, input, inOutIdx, size);
+ break;
+
+ case client_key_exchange:
+ CYASSL_MSG("processing client key exchange");
+ ret = DoClientKeyExchange(ssl, input, inOutIdx, size);
+ break;
+
+#if !defined(NO_RSA) || defined(HAVE_ECC)
+ case certificate_verify:
+ CYASSL_MSG("processing certificate verify");
+ ret = DoCertificateVerify(ssl, input, inOutIdx, size);
+ break;
+#endif /* !NO_RSA || HAVE_ECC */
+
+#endif /* !NO_CYASSL_SERVER */
+
+ default:
+ CYASSL_MSG("Unknown handshake message type");
+ ret = UNKNOWN_HANDSHAKE_TYPE;
+ break;
+ }
+
+ CYASSL_LEAVE("DoHandShakeMsgType()", ret);
+ return ret;
+}
+
+
+static int DoHandShakeMsg(CYASSL* ssl, byte* input, word32* inOutIdx,
+ word32 totalSz)
+{
+ byte type;
+ word32 size;
+ int ret = 0;
+
+ CYASSL_ENTER("DoHandShakeMsg()");
+
+ if (GetHandShakeHeader(ssl, input, inOutIdx, &type, &size) != 0)
+ return PARSE_ERROR;
+
+ ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz);
+
+ CYASSL_LEAVE("DoHandShakeMsg()", ret);
+ return ret;
+}
+
+
+#ifdef CYASSL_DTLS
+
+static INLINE int DtlsCheckWindow(DtlsState* state)
+{
+ word32 cur;
+ word32 next;
+ DtlsSeq window;
+
+ if (state->curEpoch == state->nextEpoch) {
+ next = state->nextSeq;
+ window = state->window;
+ }
+ else if (state->curEpoch < state->nextEpoch) {
+ next = state->prevSeq;
+ window = state->prevWindow;
+ }
+ else {
+ return 0;
+ }
+
+ cur = state->curSeq;
+
+ if ((next > DTLS_SEQ_BITS) && (cur < next - DTLS_SEQ_BITS)) {
+ return 0;
+ }
+ else if ((cur < next) && (window & (1 << (next - cur - 1)))) {
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static INLINE int DtlsUpdateWindow(DtlsState* state)
+{
+ word32 cur;
+ word32* next;
+ DtlsSeq* window;
+
+ if (state->curEpoch == state->nextEpoch) {
+ next = &state->nextSeq;
+ window = &state->window;
+ }
+ else {
+ next = &state->prevSeq;
+ window = &state->prevWindow;
+ }
+
+ cur = state->curSeq;
+
+ if (cur < *next) {
+ *window |= (1 << (*next - cur - 1));
+ }
+ else {
+ *window <<= (1 + cur - *next);
+ *window |= 1;
+ *next = cur + 1;
+ }
+
+ return 1;
+}
+
+
+static int DtlsMsgDrain(CYASSL* ssl)
+{
+ DtlsMsg* item = ssl->dtls_msg_list;
+ int ret = 0;
+
+ /* While there is an item in the store list, and it is the expected
+ * message, and it is complete, and there hasn't been an error in the
+ * last messge... */
+ while (item != NULL &&
+ ssl->keys.dtls_expected_peer_handshake_number == item->seq &&
+ item->fragSz == item->sz &&
+ ret == 0) {
+ word32 idx = 0;
+ ssl->keys.dtls_expected_peer_handshake_number++;
+ ret = DoHandShakeMsgType(ssl, item->msg,
+ &idx, item->type, item->sz, item->sz);
+ ssl->dtls_msg_list = item->next;
+ DtlsMsgDelete(item, ssl->heap);
+ item = ssl->dtls_msg_list;
+ }
+
+ return ret;
+}
+
+
+static int DoDtlsHandShakeMsg(CYASSL* ssl, byte* input, word32* inOutIdx,
+ word32 totalSz)
+{
+ byte type;
+ word32 size;
+ word32 fragOffset, fragSz;
+ int ret = 0;
+
+ CYASSL_ENTER("DoDtlsHandShakeMsg()");
+ if (GetDtlsHandShakeHeader(ssl, input, inOutIdx, &type,
+ &size, &fragOffset, &fragSz) != 0)
+ return PARSE_ERROR;
+
+ if (*inOutIdx + fragSz > totalSz)
+ return INCOMPLETE_DATA;
+
+ /* Check the handshake sequence number first. If out of order,
+ * add the current message to the list. If the message is in order,
+ * but it is a fragment, add the current message to the list, then
+ * check the head of the list to see if it is complete, if so, pop
+ * it out as the current message. If the message is complete and in
+ * order, process it. Check the head of the list to see if it is in
+ * order, if so, process it. (Repeat until list exhausted.) If the
+ * head is out of order, return for more processing.
+ */
+ if (ssl->keys.dtls_peer_handshake_number >
+ ssl->keys.dtls_expected_peer_handshake_number) {
+ /* Current message is out of order. It will get stored in the list.
+ * Storing also takes care of defragmentation. */
+ ssl->dtls_msg_list = DtlsMsgStore(ssl->dtls_msg_list,
+ ssl->keys.dtls_peer_handshake_number, input + *inOutIdx,
+ size, type, fragOffset, fragSz, ssl->heap);
+ *inOutIdx += fragSz;
+ ret = 0;
+ }
+ else if (ssl->keys.dtls_peer_handshake_number <
+ ssl->keys.dtls_expected_peer_handshake_number) {
+ /* Already saw this message and processed it. It can be ignored. */
+ *inOutIdx += fragSz;
+ ret = 0;
+ }
+ else if (fragSz < size) {
+ /* Since this branch is in order, but fragmented, dtls_msg_list will be
+ * pointing to the message with this fragment in it. Check it to see
+ * if it is completed. */
+ ssl->dtls_msg_list = DtlsMsgStore(ssl->dtls_msg_list,
+ ssl->keys.dtls_peer_handshake_number, input + *inOutIdx,
+ size, type, fragOffset, fragSz, ssl->heap);
+ *inOutIdx += fragSz;
+ ret = 0;
+ if (ssl->dtls_msg_list != NULL &&
+ ssl->dtls_msg_list->fragSz >= ssl->dtls_msg_list->sz)
+ ret = DtlsMsgDrain(ssl);
+ }
+ else {
+ /* This branch is in order next, and a complete message. */
+ ssl->keys.dtls_expected_peer_handshake_number++;
+ ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz);
+ if (ret == 0 && ssl->dtls_msg_list != NULL)
+ ret = DtlsMsgDrain(ssl);
+ }
+
+ CYASSL_LEAVE("DoDtlsHandShakeMsg()", ret);
+ return ret;
+}
+#endif
+
+
+static INLINE word32 GetSEQIncrement(CYASSL* ssl, int verify)
+{
+ if (verify)
+ return ssl->keys.peer_sequence_number++;
+ else
+ return ssl->keys.sequence_number++;
+}
+
+
+#ifdef HAVE_AEAD
+static INLINE void AeadIncrementExpIV(CYASSL* ssl)
+{
+ int i;
+ for (i = AEAD_EXP_IV_SZ-1; i >= 0; i--) {
+ if (++ssl->keys.aead_exp_IV[i]) return;
+ }
+}
+#endif
+
+
+static INLINE int Encrypt(CYASSL* ssl, byte* out, const byte* input, word16 sz)
+{
+ (void)out;
+ (void)input;
+ (void)sz;
+
+ if (ssl->encrypt.setup == 0) {
+ CYASSL_MSG("Encrypt ciphers not setup");
+ return ENCRYPT_ERROR;
+ }
+
+ switch (ssl->specs.bulk_cipher_algorithm) {
+ #ifdef BUILD_ARC4
+ case cyassl_rc4:
+ Arc4Process(ssl->encrypt.arc4, out, input, sz);
+ break;
+ #endif
+
+ #ifdef BUILD_DES3
+ case cyassl_triple_des:
+ return Des3_CbcEncrypt(ssl->encrypt.des3, out, input, sz);
+ #endif
+
+ #ifdef BUILD_AES
+ case cyassl_aes:
+ return AesCbcEncrypt(ssl->encrypt.aes, out, input, sz);
+ #endif
+
+ #ifdef BUILD_AESGCM
+ case cyassl_aes_gcm:
+ {
+ byte additional[AES_BLOCK_SIZE];
+ byte nonce[AEAD_NONCE_SZ];
+ const byte* additionalSrc = input - 5;
+
+ XMEMSET(additional, 0, AES_BLOCK_SIZE);
+
+ /* sequence number field is 64-bits, we only use 32-bits */
+ c32toa(GetSEQIncrement(ssl, 0),
+ additional + AEAD_SEQ_OFFSET);
+
+ /* Store the type, version. Unfortunately, they are in
+ * the input buffer ahead of the plaintext. */
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ additionalSrc -= DTLS_HANDSHAKE_EXTRA;
+ #endif
+ XMEMCPY(additional + AEAD_TYPE_OFFSET, additionalSrc, 3);
+
+ /* Store the length of the plain text minus the explicit
+ * IV length minus the authentication tag size. */
+ c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ additional + AEAD_LEN_OFFSET);
+ XMEMCPY(nonce,
+ ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
+ XMEMCPY(nonce + AEAD_IMP_IV_SZ,
+ ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
+ AesGcmEncrypt(ssl->encrypt.aes,
+ out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
+ sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ nonce, AEAD_NONCE_SZ,
+ out + sz - ssl->specs.aead_mac_size,
+ ssl->specs.aead_mac_size, additional,
+ AEAD_AUTH_DATA_SZ);
+ AeadIncrementExpIV(ssl);
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+ }
+ break;
+ #endif
+
+ #ifdef HAVE_AESCCM
+ case cyassl_aes_ccm:
+ {
+ byte additional[AES_BLOCK_SIZE];
+ byte nonce[AEAD_NONCE_SZ];
+ const byte* additionalSrc = input - 5;
+
+ XMEMSET(additional, 0, AES_BLOCK_SIZE);
+
+ /* sequence number field is 64-bits, we only use 32-bits */
+ c32toa(GetSEQIncrement(ssl, 0),
+ additional + AEAD_SEQ_OFFSET);
+
+ /* Store the type, version. Unfortunately, they are in
+ * the input buffer ahead of the plaintext. */
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ c16toa(ssl->keys.dtls_epoch, additional);
+ additionalSrc -= DTLS_HANDSHAKE_EXTRA;
+ }
+ #endif
+ XMEMCPY(additional + AEAD_TYPE_OFFSET, additionalSrc, 3);
+
+ /* Store the length of the plain text minus the explicit
+ * IV length minus the authentication tag size. */
+ c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ additional + AEAD_LEN_OFFSET);
+ XMEMCPY(nonce,
+ ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
+ XMEMCPY(nonce + AEAD_IMP_IV_SZ,
+ ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
+ AesCcmEncrypt(ssl->encrypt.aes,
+ out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
+ sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ nonce, AEAD_NONCE_SZ,
+ out + sz - ssl->specs.aead_mac_size,
+ ssl->specs.aead_mac_size,
+ additional, AEAD_AUTH_DATA_SZ);
+ AeadIncrementExpIV(ssl);
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+
+ break;
+ }
+ #endif
+
+ #ifdef HAVE_CAMELLIA
+ case cyassl_camellia:
+ CamelliaCbcEncrypt(ssl->encrypt.cam, out, input, sz);
+ break;
+ #endif
+
+ #ifdef HAVE_HC128
+ case cyassl_hc128:
+ return Hc128_Process(ssl->encrypt.hc128, out, input, sz);
+ #endif
+
+ #ifdef BUILD_RABBIT
+ case cyassl_rabbit:
+ return RabbitProcess(ssl->encrypt.rabbit, out, input, sz);
+ #endif
+
+ #ifdef HAVE_NULL_CIPHER
+ case cyassl_cipher_null:
+ if (input != out) {
+ XMEMMOVE(out, input, sz);
+ }
+ break;
+ #endif
+
+ default:
+ CYASSL_MSG("CyaSSL Encrypt programming error");
+ return ENCRYPT_ERROR;
+ }
+
+ return 0;
+}
+
+
+
+static INLINE int Decrypt(CYASSL* ssl, byte* plain, const byte* input,
+ word16 sz)
+{
+ (void)plain;
+ (void)input;
+ (void)sz;
+
+ if (ssl->decrypt.setup == 0) {
+ CYASSL_MSG("Decrypt ciphers not setup");
+ return DECRYPT_ERROR;
+ }
+
+ switch (ssl->specs.bulk_cipher_algorithm) {
+ #ifdef BUILD_ARC4
+ case cyassl_rc4:
+ Arc4Process(ssl->decrypt.arc4, plain, input, sz);
+ break;
+ #endif
+
+ #ifdef BUILD_DES3
+ case cyassl_triple_des:
+ return Des3_CbcDecrypt(ssl->decrypt.des3, plain, input, sz);
+ #endif
+
+ #ifdef BUILD_AES
+ case cyassl_aes:
+ return AesCbcDecrypt(ssl->decrypt.aes, plain, input, sz);
+ #endif
+
+ #ifdef BUILD_AESGCM
+ case cyassl_aes_gcm:
+ {
+ byte additional[AES_BLOCK_SIZE];
+ byte nonce[AEAD_NONCE_SZ];
+
+ XMEMSET(additional, 0, AES_BLOCK_SIZE);
+
+ /* sequence number field is 64-bits, we only use 32-bits */
+ c32toa(GetSEQIncrement(ssl, 1), additional + AEAD_SEQ_OFFSET);
+
+ additional[AEAD_TYPE_OFFSET] = ssl->curRL.type;
+ additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
+ additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
+
+ c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ additional + AEAD_LEN_OFFSET);
+ XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
+ XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
+ if (AesGcmDecrypt(ssl->decrypt.aes,
+ plain + AEAD_EXP_IV_SZ,
+ input + AEAD_EXP_IV_SZ,
+ sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ nonce, AEAD_NONCE_SZ,
+ input + sz - ssl->specs.aead_mac_size,
+ ssl->specs.aead_mac_size,
+ additional, AEAD_AUTH_DATA_SZ) < 0) {
+ SendAlert(ssl, alert_fatal, bad_record_mac);
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+ return VERIFY_MAC_ERROR;
+ }
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+ break;
+ }
+ #endif
+
+ #ifdef HAVE_AESCCM
+ case cyassl_aes_ccm:
+ {
+ byte additional[AES_BLOCK_SIZE];
+ byte nonce[AEAD_NONCE_SZ];
+
+ XMEMSET(additional, 0, AES_BLOCK_SIZE);
+
+ /* sequence number field is 64-bits, we only use 32-bits */
+ c32toa(GetSEQIncrement(ssl, 1), additional + AEAD_SEQ_OFFSET);
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ c16toa(ssl->keys.dtls_state.curEpoch, additional);
+ #endif
+
+ additional[AEAD_TYPE_OFFSET] = ssl->curRL.type;
+ additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
+ additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
+
+ c16toa(sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ additional + AEAD_LEN_OFFSET);
+ XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
+ XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
+ if (AesCcmDecrypt(ssl->decrypt.aes,
+ plain + AEAD_EXP_IV_SZ,
+ input + AEAD_EXP_IV_SZ,
+ sz - AEAD_EXP_IV_SZ - ssl->specs.aead_mac_size,
+ nonce, AEAD_NONCE_SZ,
+ input + sz - ssl->specs.aead_mac_size,
+ ssl->specs.aead_mac_size,
+ additional, AEAD_AUTH_DATA_SZ) < 0) {
+ SendAlert(ssl, alert_fatal, bad_record_mac);
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+ return VERIFY_MAC_ERROR;
+ }
+ XMEMSET(nonce, 0, AEAD_NONCE_SZ);
+ break;
+ }
+ #endif
+
+ #ifdef HAVE_CAMELLIA
+ case cyassl_camellia:
+ CamelliaCbcDecrypt(ssl->decrypt.cam, plain, input, sz);
+ break;
+ #endif
+
+ #ifdef HAVE_HC128
+ case cyassl_hc128:
+ return Hc128_Process(ssl->decrypt.hc128, plain, input, sz);
+ #endif
+
+ #ifdef BUILD_RABBIT
+ case cyassl_rabbit:
+ return RabbitProcess(ssl->decrypt.rabbit, plain, input, sz);
+ #endif
+
+ #ifdef HAVE_NULL_CIPHER
+ case cyassl_cipher_null:
+ if (input != plain) {
+ XMEMMOVE(plain, input, sz);
+ }
+ break;
+ #endif
+
+ default:
+ CYASSL_MSG("CyaSSL Decrypt programming error");
+ return DECRYPT_ERROR;
+ }
+ return 0;
+}
+
+
+/* check cipher text size for sanity */
+static int SanityCheckCipherText(CYASSL* ssl, word32 encryptSz)
+{
+#ifdef HAVE_TRUNCATED_HMAC
+ word32 minLength = ssl->truncated_hmac ? TRUNCATED_HMAC_SZ
+ : ssl->specs.hash_size;
+#else
+ word32 minLength = ssl->specs.hash_size; /* covers stream */
+#endif
+
+ if (ssl->specs.cipher_type == block) {
+ if (encryptSz % ssl->specs.block_size) {
+ CYASSL_MSG("Block ciphertext not block size");
+ return SANITY_CIPHER_E;
+ }
+
+ minLength++; /* pad byte */
+
+ if (ssl->specs.block_size > minLength)
+ minLength = ssl->specs.block_size;
+
+ if (ssl->options.tls1_1)
+ minLength += ssl->specs.block_size; /* explicit IV */
+ }
+ else if (ssl->specs.cipher_type == aead) {
+ minLength = ssl->specs.aead_mac_size + AEAD_EXP_IV_SZ;
+ /* explicit IV + authTag size */
+ }
+
+ if (encryptSz < minLength) {
+ CYASSL_MSG("Ciphertext not minimum size");
+ return SANITY_CIPHER_E;
+ }
+
+ return 0;
+}
+
+
+#ifndef NO_OLD_TLS
+
+static INLINE void Md5Rounds(int rounds, const byte* data, int sz)
+{
+ Md5 md5;
+ int i;
+
+ InitMd5(&md5);
+
+ for (i = 0; i < rounds; i++)
+ Md5Update(&md5, data, sz);
+}
+
+
+
+/* do a dummy sha round */
+static INLINE void ShaRounds(int rounds, const byte* data, int sz)
+{
+ Sha sha;
+ int i;
+
+ InitSha(&sha); /* no error check on purpose, dummy round */
+
+ for (i = 0; i < rounds; i++)
+ ShaUpdate(&sha, data, sz);
+}
+#endif
+
+
+#ifndef NO_SHA256
+
+static INLINE void Sha256Rounds(int rounds, const byte* data, int sz)
+{
+ Sha256 sha256;
+ int i;
+
+ InitSha256(&sha256); /* no error check on purpose, dummy round */
+
+ for (i = 0; i < rounds; i++) {
+ Sha256Update(&sha256, data, sz);
+ /* no error check on purpose, dummy round */
+ }
+
+}
+
+#endif
+
+
+#ifdef CYASSL_SHA384
+
+static INLINE void Sha384Rounds(int rounds, const byte* data, int sz)
+{
+ Sha384 sha384;
+ int i;
+
+ InitSha384(&sha384); /* no error check on purpose, dummy round */
+
+ for (i = 0; i < rounds; i++) {
+ Sha384Update(&sha384, data, sz);
+ /* no error check on purpose, dummy round */
+ }
+}
+
+#endif
+
+
+#ifdef CYASSL_SHA512
+
+static INLINE void Sha512Rounds(int rounds, const byte* data, int sz)
+{
+ Sha512 sha512;
+ int i;
+
+ InitSha512(&sha512); /* no error check on purpose, dummy round */
+
+ for (i = 0; i < rounds; i++) {
+ Sha512Update(&sha512, data, sz);
+ /* no error check on purpose, dummy round */
+ }
+}
+
+#endif
+
+
+#ifdef CYASSL_RIPEMD
+
+static INLINE void RmdRounds(int rounds, const byte* data, int sz)
+{
+ RipeMd ripemd;
+ int i;
+
+ InitRipeMd(&ripemd);
+
+ for (i = 0; i < rounds; i++)
+ RipeMdUpdate(&ripemd, data, sz);
+}
+
+#endif
+
+
+/* Do dummy rounds */
+static INLINE void DoRounds(int type, int rounds, const byte* data, int sz)
+{
+ switch (type) {
+
+ case no_mac :
+ break;
+
+#ifndef NO_OLD_TLS
+#ifndef NO_MD5
+ case md5_mac :
+ Md5Rounds(rounds, data, sz);
+ break;
+#endif
+
+#ifndef NO_SHA
+ case sha_mac :
+ ShaRounds(rounds, data, sz);
+ break;
+#endif
+#endif
+
+#ifndef NO_SHA256
+ case sha256_mac :
+ Sha256Rounds(rounds, data, sz);
+ break;
+#endif
+
+#ifdef CYASSL_SHA384
+ case sha384_mac :
+ Sha384Rounds(rounds, data, sz);
+ break;
+#endif
+
+#ifdef CYASSL_SHA512
+ case sha512_mac :
+ Sha512Rounds(rounds, data, sz);
+ break;
+#endif
+
+#ifdef CYASSL_RIPEMD
+ case rmd_mac :
+ RmdRounds(rounds, data, sz);
+ break;
+#endif
+
+ default:
+ CYASSL_MSG("Bad round type");
+ break;
+ }
+}
+
+
+/* do number of compression rounds on dummy data */
+static INLINE void CompressRounds(CYASSL* ssl, int rounds, const byte* dummy)
+{
+ if (rounds)
+ DoRounds(ssl->specs.mac_algorithm, rounds, dummy, COMPRESS_LOWER);
+}
+
+
+/* check all length bytes for equality, return 0 on success */
+static int ConstantCompare(const byte* a, const byte* b, int length)
+{
+ int i;
+ int good = 0;
+ int bad = 0;
+
+ for (i = 0; i < length; i++) {
+ if (a[i] == b[i])
+ good++;
+ else
+ bad++;
+ }
+
+ if (good == length)
+ return 0;
+ else
+ return 0 - bad; /* compare failed */
+}
+
+
+/* check all length bytes for the pad value, return 0 on success */
+static int PadCheck(const byte* input, byte pad, int length)
+{
+ int i;
+ int good = 0;
+ int bad = 0;
+
+ for (i = 0; i < length; i++) {
+ if (input[i] == pad)
+ good++;
+ else
+ bad++;
+ }
+
+ if (good == length)
+ return 0;
+ else
+ return 0 - bad; /* pad check failed */
+}
+
+
+/* get compression extra rounds */
+static INLINE int GetRounds(int pLen, int padLen, int t)
+{
+ int roundL1 = 1; /* round up flags */
+ int roundL2 = 1;
+
+ int L1 = COMPRESS_CONSTANT + pLen - t;
+ int L2 = COMPRESS_CONSTANT + pLen - padLen - 1 - t;
+
+ L1 -= COMPRESS_UPPER;
+ L2 -= COMPRESS_UPPER;
+
+ if ( (L1 % COMPRESS_LOWER) == 0)
+ roundL1 = 0;
+ if ( (L2 % COMPRESS_LOWER) == 0)
+ roundL2 = 0;
+
+ L1 /= COMPRESS_LOWER;
+ L2 /= COMPRESS_LOWER;
+
+ L1 += roundL1;
+ L2 += roundL2;
+
+ return L1 - L2;
+}
+
+
+/* timing resistant pad/verify check, return 0 on success */
+static int TimingPadVerify(CYASSL* ssl, const byte* input, int padLen, int t,
+ int pLen, int content)
+{
+ byte verify[MAX_DIGEST_SIZE];
+ byte dummy[MAX_PAD_SIZE];
+ int ret = 0;
+
+ XMEMSET(dummy, 1, sizeof(dummy));
+
+ if ( (t + padLen + 1) > pLen) {
+ CYASSL_MSG("Plain Len not long enough for pad/mac");
+ PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE);
+ ssl->hmac(ssl, verify, input, pLen - t, content, 1); /* still compare */
+ ConstantCompare(verify, input + pLen - t, t);
+
+ return VERIFY_MAC_ERROR;
+ }
+
+ if (PadCheck(input + pLen - (padLen + 1), (byte)padLen, padLen + 1) != 0) {
+ CYASSL_MSG("PadCheck failed");
+ PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE - padLen - 1);
+ ssl->hmac(ssl, verify, input, pLen - t, content, 1); /* still compare */
+ ConstantCompare(verify, input + pLen - t, t);
+
+ return VERIFY_MAC_ERROR;
+ }
+
+ PadCheck(dummy, (byte)padLen, MAX_PAD_SIZE - padLen - 1);
+ ret = ssl->hmac(ssl, verify, input, pLen - padLen - 1 - t, content, 1);
+
+ CompressRounds(ssl, GetRounds(pLen, padLen, t), dummy);
+
+ if (ConstantCompare(verify, input + (pLen - padLen - 1 - t), t) != 0) {
+ CYASSL_MSG("Verify MAC compare failed");
+ return VERIFY_MAC_ERROR;
+ }
+
+ if (ret != 0)
+ return VERIFY_MAC_ERROR;
+ return 0;
+}
+
+
+int DoApplicationData(CYASSL* ssl, byte* input, word32* inOutIdx)
+{
+ word32 msgSz = ssl->keys.encryptSz;
+ word32 idx = *inOutIdx;
+ int dataSz;
+ int ivExtra = 0;
+ byte* rawData = input + idx; /* keep current for hmac */
+#ifdef HAVE_LIBZ
+ byte decomp[MAX_RECORD_SIZE + MAX_COMP_EXTRA];
+#endif
+
+ if (ssl->options.handShakeState != HANDSHAKE_DONE) {
+ CYASSL_MSG("Received App data before handshake complete");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+ if (ssl->specs.cipher_type == block) {
+ if (ssl->options.tls1_1)
+ ivExtra = ssl->specs.block_size;
+ }
+ else if (ssl->specs.cipher_type == aead) {
+ ivExtra = AEAD_EXP_IV_SZ;
+ }
+
+ dataSz = msgSz - ivExtra - ssl->keys.padSz;
+ if (dataSz < 0) {
+ CYASSL_MSG("App data buffer error, malicious input?");
+ return BUFFER_ERROR;
+ }
+
+ /* read data */
+ if (dataSz) {
+ int rawSz = dataSz; /* keep raw size for idx adjustment */
+
+#ifdef HAVE_LIBZ
+ if (ssl->options.usingCompression) {
+ dataSz = myDeCompress(ssl, rawData, dataSz, decomp, sizeof(decomp));
+ if (dataSz < 0) return dataSz;
+ }
+#endif
+ idx += rawSz;
+
+ ssl->buffers.clearOutputBuffer.buffer = rawData;
+ ssl->buffers.clearOutputBuffer.length = dataSz;
+ }
+
+ idx += ssl->keys.padSz;
+
+#ifdef HAVE_LIBZ
+ /* decompress could be bigger, overwrite after verify */
+ if (ssl->options.usingCompression)
+ XMEMMOVE(rawData, decomp, dataSz);
+#endif
+
+ *inOutIdx = idx;
+ return 0;
+}
+
+
+/* process alert, return level */
+static int DoAlert(CYASSL* ssl, byte* input, word32* inOutIdx, int* type,
+ word32 totalSz)
+{
+ byte level;
+ byte code;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("Alert", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ /* add record header back on to info + 2 byte level, data */
+ AddPacketInfo("Alert", &ssl->timeoutInfo, input + *inOutIdx -
+ RECORD_HEADER_SZ, 2 + RECORD_HEADER_SZ, ssl->heap);
+ #endif
+
+ /* make sure can read the message */
+ if (*inOutIdx + ALERT_SIZE > totalSz)
+ return BUFFER_E;
+
+ level = input[(*inOutIdx)++];
+ code = input[(*inOutIdx)++];
+ ssl->alert_history.last_rx.code = code;
+ ssl->alert_history.last_rx.level = level;
+ *type = code;
+ if (level == alert_fatal) {
+ ssl->options.isClosed = 1; /* Don't send close_notify */
+ }
+
+ CYASSL_MSG("Got alert");
+ if (*type == close_notify) {
+ CYASSL_MSG(" close notify");
+ ssl->options.closeNotify = 1;
+ }
+ CYASSL_ERROR(*type);
+
+ if (ssl->keys.encryptionOn) {
+ if (*inOutIdx + ssl->keys.padSz > totalSz)
+ return BUFFER_E;
+ *inOutIdx += ssl->keys.padSz;
+ }
+
+ return level;
+}
+
+static int GetInputData(CYASSL *ssl, word32 size)
+{
+ int in;
+ int inSz;
+ int maxLength;
+ int usedLength;
+ int dtlsExtra = 0;
+
+
+ /* check max input length */
+ usedLength = ssl->buffers.inputBuffer.length - ssl->buffers.inputBuffer.idx;
+ maxLength = ssl->buffers.inputBuffer.bufferSize - usedLength;
+ inSz = (int)(size - usedLength); /* from last partial read */
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if (size < ssl->dtls_expected_rx)
+ dtlsExtra = (int)(ssl->dtls_expected_rx - size);
+ inSz = ssl->dtls_expected_rx;
+ }
+#endif
+
+ if (inSz > maxLength) {
+ if (GrowInputBuffer(ssl, size + dtlsExtra, usedLength) < 0)
+ return MEMORY_E;
+ }
+
+ if (inSz <= 0)
+ return BUFFER_ERROR;
+
+ /* Put buffer data at start if not there */
+ if (usedLength > 0 && ssl->buffers.inputBuffer.idx != 0)
+ XMEMMOVE(ssl->buffers.inputBuffer.buffer,
+ ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx,
+ usedLength);
+
+ /* remove processed data */
+ ssl->buffers.inputBuffer.idx = 0;
+ ssl->buffers.inputBuffer.length = usedLength;
+
+ /* read data from network */
+ do {
+ in = Receive(ssl,
+ ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.length,
+ inSz);
+ if (in == -1)
+ return SOCKET_ERROR_E;
+
+ if (in == WANT_READ)
+ return WANT_READ;
+
+ if (in > inSz)
+ return RECV_OVERFLOW_E;
+
+ ssl->buffers.inputBuffer.length += in;
+ inSz -= in;
+
+ } while (ssl->buffers.inputBuffer.length < size);
+
+ return 0;
+}
+
+
+static INLINE int VerifyMac(CYASSL* ssl, const byte* input, word32 msgSz,
+ int content, word32* padSz)
+{
+ int ivExtra = 0;
+ int ret;
+ word32 pad = 0;
+ word32 padByte = 0;
+#ifdef HAVE_TRUNCATED_HMAC
+ word32 digestSz = ssl->truncated_hmac ? TRUNCATED_HMAC_SZ
+ : ssl->specs.hash_size;
+#else
+ word32 digestSz = ssl->specs.hash_size;
+#endif
+ byte verify[MAX_DIGEST_SIZE];
+
+ if (ssl->specs.cipher_type == block) {
+ if (ssl->options.tls1_1)
+ ivExtra = ssl->specs.block_size;
+ pad = *(input + msgSz - ivExtra - 1);
+ padByte = 1;
+
+ if (ssl->options.tls) {
+ ret = TimingPadVerify(ssl, input, pad, digestSz, msgSz - ivExtra,
+ content);
+ if (ret != 0)
+ return ret;
+ }
+ else { /* sslv3, some implementations have bad padding, but don't
+ * allow bad read */
+ int badPadLen = 0;
+ byte dummy[MAX_PAD_SIZE];
+
+ XMEMSET(dummy, 1, sizeof(dummy));
+
+ if (pad > (msgSz - digestSz - 1)) {
+ CYASSL_MSG("Plain Len not long enough for pad/mac");
+ pad = 0; /* no bad read */
+ badPadLen = 1;
+ }
+ PadCheck(dummy, (byte)pad, MAX_PAD_SIZE); /* timing only */
+ ret = ssl->hmac(ssl, verify, input, msgSz - digestSz - pad - 1,
+ content, 1);
+ if (ConstantCompare(verify, input + msgSz - digestSz - pad - 1,
+ digestSz) != 0)
+ return VERIFY_MAC_ERROR;
+ if (ret != 0 || badPadLen)
+ return VERIFY_MAC_ERROR;
+ }
+ }
+ else if (ssl->specs.cipher_type == stream) {
+ ret = ssl->hmac(ssl, verify, input, msgSz - digestSz, content, 1);
+ if (ConstantCompare(verify, input + msgSz - digestSz, digestSz) != 0){
+ return VERIFY_MAC_ERROR;
+ }
+ if (ret != 0)
+ return VERIFY_MAC_ERROR;
+ }
+
+ if (ssl->specs.cipher_type == aead) {
+ *padSz = ssl->specs.aead_mac_size;
+ }
+ else {
+ *padSz = digestSz + pad + padByte;
+ }
+
+ return 0;
+}
+
+
+/* process input requests, return 0 is done, 1 is call again to complete, and
+ negative number is error */
+int ProcessReply(CYASSL* ssl)
+{
+ int ret = 0, type, readSz;
+ int atomicUser = 0;
+ word32 startIdx = 0;
+#ifndef NO_CYASSL_SERVER
+ byte b0, b1;
+#endif
+#ifdef CYASSL_DTLS
+ int used;
+#endif
+
+#ifdef ATOMIC_USER
+ if (ssl->ctx->DecryptVerifyCb)
+ atomicUser = 1;
+#endif
+
+ if (ssl->error != 0 && ssl->error != WANT_READ && ssl->error != WANT_WRITE){
+ CYASSL_MSG("ProcessReply retry in error state, not allowed");
+ return ssl->error;
+ }
+
+ for (;;) {
+ switch (ssl->options.processReply) {
+
+ /* in the CYASSL_SERVER case, get the first byte for detecting
+ * old client hello */
+ case doProcessInit:
+
+ readSz = RECORD_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ readSz = DTLS_RECORD_HEADER_SZ;
+ #endif
+
+ /* get header or return error */
+ if (!ssl->options.dtls) {
+ if ((ret = GetInputData(ssl, readSz)) < 0)
+ return ret;
+ } else {
+ #ifdef CYASSL_DTLS
+ /* read ahead may already have header */
+ used = ssl->buffers.inputBuffer.length -
+ ssl->buffers.inputBuffer.idx;
+ if (used < readSz)
+ if ((ret = GetInputData(ssl, readSz)) < 0)
+ return ret;
+ #endif
+ }
+
+#ifndef NO_CYASSL_SERVER
+
+ /* see if sending SSLv2 client hello */
+ if ( ssl->options.side == CYASSL_SERVER_END &&
+ ssl->options.clientState == NULL_STATE &&
+ ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx]
+ != handshake) {
+ ssl->options.processReply = runProcessOldClientHello;
+
+ /* how many bytes need ProcessOldClientHello */
+ b0 =
+ ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++];
+ b1 =
+ ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++];
+ ssl->curSize = (word16)(((b0 & 0x7f) << 8) | b1);
+ }
+ else {
+ ssl->options.processReply = getRecordLayerHeader;
+ continue;
+ }
+
+ /* in the CYASSL_SERVER case, run the old client hello */
+ case runProcessOldClientHello:
+
+ /* get sz bytes or return error */
+ if (!ssl->options.dtls) {
+ if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
+ return ret;
+ } else {
+ #ifdef CYASSL_DTLS
+ /* read ahead may already have */
+ used = ssl->buffers.inputBuffer.length -
+ ssl->buffers.inputBuffer.idx;
+ if (used < ssl->curSize)
+ if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
+ return ret;
+ #endif /* CYASSL_DTLS */
+ }
+
+ ret = ProcessOldClientHello(ssl, ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx,
+ ssl->buffers.inputBuffer.length -
+ ssl->buffers.inputBuffer.idx,
+ ssl->curSize);
+ if (ret < 0)
+ return ret;
+
+ else if (ssl->buffers.inputBuffer.idx ==
+ ssl->buffers.inputBuffer.length) {
+ ssl->options.processReply = doProcessInit;
+ return 0;
+ }
+
+#endif /* NO_CYASSL_SERVER */
+
+ /* get the record layer header */
+ case getRecordLayerHeader:
+
+ ret = GetRecordHeader(ssl, ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx,
+ &ssl->curRL, &ssl->curSize);
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls && ret == SEQUENCE_ERROR) {
+ ssl->options.processReply = doProcessInit;
+ ssl->buffers.inputBuffer.length = 0;
+ ssl->buffers.inputBuffer.idx = 0;
+ continue;
+ }
+#endif
+ if (ret != 0)
+ return ret;
+
+ ssl->options.processReply = getData;
+
+ /* retrieve record layer data */
+ case getData:
+
+ /* get sz bytes or return error */
+ if (!ssl->options.dtls) {
+ if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
+ return ret;
+ } else {
+#ifdef CYASSL_DTLS
+ /* read ahead may already have */
+ used = ssl->buffers.inputBuffer.length -
+ ssl->buffers.inputBuffer.idx;
+ if (used < ssl->curSize)
+ if ((ret = GetInputData(ssl, ssl->curSize)) < 0)
+ return ret;
+#endif
+ }
+
+ ssl->options.processReply = runProcessingOneMessage;
+ startIdx = ssl->buffers.inputBuffer.idx; /* in case > 1 msg per */
+
+ /* the record layer is here */
+ case runProcessingOneMessage:
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls &&
+ ssl->keys.dtls_state.curEpoch < ssl->keys.dtls_state.nextEpoch)
+ ssl->keys.decryptedCur = 1;
+ #endif
+
+ if (ssl->keys.encryptionOn && ssl->keys.decryptedCur == 0)
+ {
+ ret = SanityCheckCipherText(ssl, ssl->curSize);
+ if (ret < 0)
+ return ret;
+
+ if (atomicUser) {
+ #ifdef ATOMIC_USER
+ ret = ssl->ctx->DecryptVerifyCb(ssl,
+ ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx,
+ ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx,
+ ssl->curSize, ssl->curRL.type, 1,
+ &ssl->keys.padSz, ssl->DecryptVerifyCtx);
+ if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
+ ssl->buffers.inputBuffer.idx += ssl->specs.block_size;
+ /* go past TLSv1.1 IV */
+ if (ssl->specs.cipher_type == aead)
+ ssl->buffers.inputBuffer.idx += AEAD_EXP_IV_SZ;
+ #endif /* ATOMIC_USER */
+ }
+ else {
+ ret = Decrypt(ssl, ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx,
+ ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx,
+ ssl->curSize);
+ if (ret < 0) {
+ CYASSL_ERROR(ret);
+ return DECRYPT_ERROR;
+ }
+ if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
+ ssl->buffers.inputBuffer.idx += ssl->specs.block_size;
+ /* go past TLSv1.1 IV */
+ if (ssl->specs.cipher_type == aead)
+ ssl->buffers.inputBuffer.idx += AEAD_EXP_IV_SZ;
+
+ ret = VerifyMac(ssl, ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx,
+ ssl->curSize, ssl->curRL.type,
+ &ssl->keys.padSz);
+ }
+ if (ret < 0) {
+ CYASSL_ERROR(ret);
+ return DECRYPT_ERROR;
+ }
+ ssl->keys.encryptSz = ssl->curSize;
+ ssl->keys.decryptedCur = 1;
+ }
+
+ if (ssl->options.dtls) {
+ #ifdef CYASSL_DTLS
+ DtlsUpdateWindow(&ssl->keys.dtls_state);
+ #endif /* CYASSL_DTLS */
+ }
+
+ CYASSL_MSG("received record layer msg");
+
+ switch (ssl->curRL.type) {
+ case handshake :
+ /* debugging in DoHandShakeMsg */
+ if (!ssl->options.dtls) {
+ ret = DoHandShakeMsg(ssl,
+ ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx,
+ ssl->buffers.inputBuffer.length);
+ }
+ else {
+#ifdef CYASSL_DTLS
+ ret = DoDtlsHandShakeMsg(ssl,
+ ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx,
+ ssl->buffers.inputBuffer.length);
+#endif
+ }
+ if (ret != 0)
+ return ret;
+ break;
+
+ case change_cipher_spec:
+ CYASSL_MSG("got CHANGE CIPHER SPEC");
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ChangeCipher", &ssl->handShakeInfo);
+ /* add record header back on info */
+ if (ssl->toInfoOn) {
+ AddPacketInfo("ChangeCipher", &ssl->timeoutInfo,
+ ssl->buffers.inputBuffer.buffer +
+ ssl->buffers.inputBuffer.idx - RECORD_HEADER_SZ,
+ 1 + RECORD_HEADER_SZ, ssl->heap);
+ AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo);
+ }
+ #endif
+
+ if (ssl->curSize != 1) {
+ CYASSL_MSG("Malicious or corrupted ChangeCipher msg");
+ return LENGTH_ERROR;
+ }
+ #ifndef NO_CERTS
+ if (ssl->options.side == CYASSL_SERVER_END &&
+ ssl->options.verifyPeer &&
+ ssl->options.havePeerCert)
+ if (!ssl->options.havePeerVerify) {
+ CYASSL_MSG("client didn't send cert verify");
+ return NO_PEER_VERIFY;
+ }
+ #endif
+
+
+ ssl->buffers.inputBuffer.idx++;
+ ssl->keys.encryptionOn = 1;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ DtlsPoolReset(ssl);
+ ssl->keys.dtls_state.nextEpoch++;
+ ssl->keys.dtls_state.nextSeq = 0;
+ }
+ #endif
+
+ #ifdef HAVE_LIBZ
+ if (ssl->options.usingCompression)
+ if ( (ret = InitStreams(ssl)) != 0)
+ return ret;
+ #endif
+ if (ssl->options.resuming && ssl->options.side ==
+ CYASSL_CLIENT_END)
+ ret = BuildFinished(ssl, &ssl->verifyHashes, server);
+ else if (!ssl->options.resuming && ssl->options.side ==
+ CYASSL_SERVER_END)
+ ret = BuildFinished(ssl, &ssl->verifyHashes, client);
+ if (ret != 0)
+ return ret;
+ break;
+
+ case application_data:
+ CYASSL_MSG("got app DATA");
+ if ((ret = DoApplicationData(ssl,
+ ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx))
+ != 0) {
+ CYASSL_ERROR(ret);
+ return ret;
+ }
+ break;
+
+ case alert:
+ CYASSL_MSG("got ALERT!");
+ ret = DoAlert(ssl, ssl->buffers.inputBuffer.buffer,
+ &ssl->buffers.inputBuffer.idx, &type,
+ ssl->buffers.inputBuffer.length);
+ if (ret == alert_fatal)
+ return FATAL_ERROR;
+ else if (ret < 0)
+ return ret;
+
+ /* catch warnings that are handled as errors */
+ if (type == close_notify)
+ return ssl->error = ZERO_RETURN;
+
+ if (type == decrypt_error)
+ return FATAL_ERROR;
+ break;
+
+ default:
+ CYASSL_ERROR(UNKNOWN_RECORD_TYPE);
+ return UNKNOWN_RECORD_TYPE;
+ }
+
+ ssl->options.processReply = doProcessInit;
+
+ /* input exhausted? */
+ if (ssl->buffers.inputBuffer.idx == ssl->buffers.inputBuffer.length)
+ return 0;
+ /* more messages per record */
+ else if ((ssl->buffers.inputBuffer.idx - startIdx) < ssl->curSize) {
+ CYASSL_MSG("More messages in record");
+ #ifdef CYASSL_DTLS
+ /* read-ahead but dtls doesn't bundle messages per record */
+ if (ssl->options.dtls) {
+ ssl->options.processReply = doProcessInit;
+ continue;
+ }
+ #endif
+ ssl->options.processReply = runProcessingOneMessage;
+ continue;
+ }
+ /* more records */
+ else {
+ CYASSL_MSG("More records in input");
+ ssl->options.processReply = doProcessInit;
+ continue;
+ }
+
+ default:
+ CYASSL_MSG("Bad process input state, programming error");
+ return INPUT_CASE_ERROR;
+ }
+ }
+}
+
+
+int SendChangeCipher(CYASSL* ssl)
+{
+ byte *output;
+ int sendSz = RECORD_HEADER_SZ + ENUM_LEN;
+ int idx = RECORD_HEADER_SZ;
+ int ret;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA;
+ idx += DTLS_RECORD_EXTRA;
+ }
+ #endif
+
+ /* check for avalaible size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddRecordHeader(output, 1, change_cipher_spec, ssl);
+
+ output[idx] = 1; /* turn it on */
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("ChangeCipher", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ChangeCipher", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+ #endif
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ if (ssl->options.groupMessages)
+ return 0;
+ #ifdef CYASSL_DTLS
+ else if (ssl->options.dtls) {
+ /* If using DTLS, force the ChangeCipherSpec message to be in the
+ * same datagram as the finished message. */
+ return 0;
+ }
+ #endif
+ else
+ return SendBuffered(ssl);
+}
+
+
+#ifndef NO_OLD_TLS
+static int SSL_hmac(CYASSL* ssl, byte* digest, const byte* in, word32 sz,
+ int content, int verify)
+{
+ byte result[MAX_DIGEST_SIZE];
+ word32 digestSz = ssl->specs.hash_size; /* actual sizes */
+ word32 padSz = ssl->specs.pad_size;
+ int ret = 0;
+
+ Md5 md5;
+ Sha sha;
+
+ /* data */
+ byte seq[SEQ_SZ];
+ byte conLen[ENUM_LEN + LENGTH_SZ]; /* content & length */
+ const byte* macSecret = CyaSSL_GetMacSecret(ssl, verify);
+
+ XMEMSET(seq, 0, SEQ_SZ);
+ conLen[0] = (byte)content;
+ c16toa((word16)sz, &conLen[ENUM_LEN]);
+ c32toa(GetSEQIncrement(ssl, verify), &seq[sizeof(word32)]);
+
+ if (ssl->specs.mac_algorithm == md5_mac) {
+ InitMd5(&md5);
+ /* inner */
+ Md5Update(&md5, macSecret, digestSz);
+ Md5Update(&md5, PAD1, padSz);
+ Md5Update(&md5, seq, SEQ_SZ);
+ Md5Update(&md5, conLen, sizeof(conLen));
+ /* in buffer */
+ Md5Update(&md5, in, sz);
+ Md5Final(&md5, result);
+ /* outer */
+ Md5Update(&md5, macSecret, digestSz);
+ Md5Update(&md5, PAD2, padSz);
+ Md5Update(&md5, result, digestSz);
+ Md5Final(&md5, digest);
+ }
+ else {
+ ret = InitSha(&sha);
+ if (ret != 0)
+ return ret;
+ /* inner */
+ ShaUpdate(&sha, macSecret, digestSz);
+ ShaUpdate(&sha, PAD1, padSz);
+ ShaUpdate(&sha, seq, SEQ_SZ);
+ ShaUpdate(&sha, conLen, sizeof(conLen));
+ /* in buffer */
+ ShaUpdate(&sha, in, sz);
+ ShaFinal(&sha, result);
+ /* outer */
+ ShaUpdate(&sha, macSecret, digestSz);
+ ShaUpdate(&sha, PAD2, padSz);
+ ShaUpdate(&sha, result, digestSz);
+ ShaFinal(&sha, digest);
+ }
+ return 0;
+}
+
+#ifndef NO_CERTS
+static void BuildMD5_CertVerify(CYASSL* ssl, byte* digest)
+{
+ byte md5_result[MD5_DIGEST_SIZE];
+
+ /* make md5 inner */
+ Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
+ Md5Update(&ssl->hashMd5, PAD1, PAD_MD5);
+ Md5Final(&ssl->hashMd5, md5_result);
+
+ /* make md5 outer */
+ Md5Update(&ssl->hashMd5, ssl->arrays->masterSecret, SECRET_LEN);
+ Md5Update(&ssl->hashMd5, PAD2, PAD_MD5);
+ Md5Update(&ssl->hashMd5, md5_result, MD5_DIGEST_SIZE);
+
+ Md5Final(&ssl->hashMd5, digest);
+}
+
+
+static void BuildSHA_CertVerify(CYASSL* ssl, byte* digest)
+{
+ byte sha_result[SHA_DIGEST_SIZE];
+
+ /* make sha inner */
+ ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
+ ShaUpdate(&ssl->hashSha, PAD1, PAD_SHA);
+ ShaFinal(&ssl->hashSha, sha_result);
+
+ /* make sha outer */
+ ShaUpdate(&ssl->hashSha, ssl->arrays->masterSecret, SECRET_LEN);
+ ShaUpdate(&ssl->hashSha, PAD2, PAD_SHA);
+ ShaUpdate(&ssl->hashSha, sha_result, SHA_DIGEST_SIZE);
+
+ ShaFinal(&ssl->hashSha, digest);
+}
+#endif /* NO_CERTS */
+#endif /* NO_OLD_TLS */
+
+
+#ifndef NO_CERTS
+
+static int BuildCertHashes(CYASSL* ssl, Hashes* hashes)
+{
+ /* store current states, building requires get_digest which resets state */
+ #ifndef NO_OLD_TLS
+ Md5 md5 = ssl->hashMd5;
+ Sha sha = ssl->hashSha;
+ #endif
+ #ifndef NO_SHA256
+ Sha256 sha256 = ssl->hashSha256;
+ #endif
+ #ifdef CYASSL_SHA384
+ Sha384 sha384 = ssl->hashSha384;
+ #endif
+
+ if (ssl->options.tls) {
+#if ! defined( NO_OLD_TLS )
+ Md5Final(&ssl->hashMd5, hashes->md5);
+ ShaFinal(&ssl->hashSha, hashes->sha);
+#endif
+ if (IsAtLeastTLSv1_2(ssl)) {
+ int ret;
+
+ #ifndef NO_SHA256
+ ret = Sha256Final(&ssl->hashSha256, hashes->sha256);
+ if (ret != 0)
+ return ret;
+ #endif
+ #ifdef CYASSL_SHA384
+ ret = Sha384Final(&ssl->hashSha384, hashes->sha384);
+ if (ret != 0)
+ return ret;
+ #endif
+ }
+ }
+#if ! defined( NO_OLD_TLS )
+ else {
+ BuildMD5_CertVerify(ssl, hashes->md5);
+ BuildSHA_CertVerify(ssl, hashes->sha);
+ }
+
+ /* restore */
+ ssl->hashMd5 = md5;
+ ssl->hashSha = sha;
+#endif
+ if (IsAtLeastTLSv1_2(ssl)) {
+ #ifndef NO_SHA256
+ ssl->hashSha256 = sha256;
+ #endif
+ #ifdef CYASSL_SHA384
+ ssl->hashSha384 = sha384;
+ #endif
+ }
+
+ return 0;
+}
+
+#endif /* CYASSL_LEANPSK */
+
+/* Build SSL Message, encrypted */
+static int BuildMessage(CYASSL* ssl, byte* output, const byte* input, int inSz,
+ int type)
+{
+#ifdef HAVE_TRUNCATED_HMAC
+ word32 digestSz = min(ssl->specs.hash_size,
+ ssl->truncated_hmac ? TRUNCATED_HMAC_SZ : ssl->specs.hash_size);
+#else
+ word32 digestSz = ssl->specs.hash_size;
+#endif
+ word32 sz = RECORD_HEADER_SZ + inSz + digestSz;
+ word32 pad = 0, i;
+ word32 idx = RECORD_HEADER_SZ;
+ word32 ivSz = 0; /* TLSv1.1 IV */
+ word32 headerSz = RECORD_HEADER_SZ;
+ word16 size;
+ byte iv[AES_BLOCK_SIZE]; /* max size */
+ int ret = 0;
+ int atomicUser = 0;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sz += DTLS_RECORD_EXTRA;
+ idx += DTLS_RECORD_EXTRA;
+ headerSz += DTLS_RECORD_EXTRA;
+ }
+#endif
+
+#ifdef ATOMIC_USER
+ if (ssl->ctx->MacEncryptCb)
+ atomicUser = 1;
+#endif
+
+ if (ssl->specs.cipher_type == block) {
+ word32 blockSz = ssl->specs.block_size;
+ if (ssl->options.tls1_1) {
+ ivSz = blockSz;
+ sz += ivSz;
+
+ ret = RNG_GenerateBlock(ssl->rng, iv, ivSz);
+ if (ret != 0)
+ return ret;
+
+ }
+ sz += 1; /* pad byte */
+ pad = (sz - headerSz) % blockSz;
+ pad = blockSz - pad;
+ sz += pad;
+ }
+
+#ifdef HAVE_AEAD
+ if (ssl->specs.cipher_type == aead) {
+ ivSz = AEAD_EXP_IV_SZ;
+ sz += (ivSz + ssl->specs.aead_mac_size - digestSz);
+ XMEMCPY(iv, ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
+ }
+#endif
+ size = (word16)(sz - headerSz); /* include mac and digest */
+ AddRecordHeader(output, size, (byte)type, ssl);
+
+ /* write to output */
+ if (ivSz) {
+ XMEMCPY(output + idx, iv, min(ivSz, sizeof(iv)));
+ idx += ivSz;
+ }
+ XMEMCPY(output + idx, input, inSz);
+ idx += inSz;
+
+ if (type == handshake) {
+ ret = HashOutput(ssl, output, headerSz + inSz, ivSz);
+ if (ret != 0)
+ return ret;
+ }
+
+ if (ssl->specs.cipher_type == block) {
+ word32 tmpIdx = idx + digestSz;
+
+ for (i = 0; i <= pad; i++)
+ output[tmpIdx++] = (byte)pad; /* pad byte gets pad value too */
+ }
+
+ if (atomicUser) { /* User Record Layer Callback handling */
+#ifdef ATOMIC_USER
+ if ( (ret = ssl->ctx->MacEncryptCb(ssl, output + idx,
+ output + headerSz + ivSz, inSz, type, 0,
+ output + headerSz, output + headerSz, size,
+ ssl->MacEncryptCtx)) != 0)
+ return ret;
+#endif
+ }
+ else {
+ if (ssl->specs.cipher_type != aead) {
+#ifdef HAVE_TRUNCATED_HMAC
+ if (ssl->truncated_hmac && ssl->specs.hash_size > digestSz) {
+ byte hmac[MAX_DIGEST_SIZE];
+
+ ret = ssl->hmac(ssl, hmac, output + headerSz + ivSz, inSz,
+ type, 0);
+ XMEMCPY(output + idx, hmac, digestSz);
+ } else
+#endif
+ ret = ssl->hmac(ssl, output+idx, output + headerSz + ivSz, inSz,
+ type, 0);
+ }
+ if (ret != 0)
+ return ret;
+
+ if ( (ret = Encrypt(ssl, output + headerSz, output+headerSz,size)) != 0)
+ return ret;
+ }
+
+ return sz;
+}
+
+
+int SendFinished(CYASSL* ssl)
+{
+ int sendSz,
+ finishedSz = ssl->options.tls ? TLS_FINISHED_SZ :
+ FINISHED_SZ;
+ byte input[FINISHED_SZ + DTLS_HANDSHAKE_HEADER_SZ]; /* max */
+ byte *output;
+ Hashes* hashes;
+ int ret;
+ int headerSz = HANDSHAKE_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ word32 sequence_number = ssl->keys.dtls_sequence_number;
+ word16 epoch = ssl->keys.dtls_epoch;
+ #endif
+
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sizeof(input) + MAX_MSG_EXTRA)) != 0)
+ return ret;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ /* Send Finished message with the next epoch, but don't commit that
+ * change until the other end confirms its reception. */
+ headerSz += DTLS_HANDSHAKE_EXTRA;
+ ssl->keys.dtls_epoch++;
+ ssl->keys.dtls_sequence_number = 0; /* reset after epoch change */
+ }
+ #endif
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHandShakeHeader(input, finishedSz, finished, ssl);
+
+ /* make finished hashes */
+ hashes = (Hashes*)&input[headerSz];
+ ret = BuildFinished(ssl, hashes,
+ ssl->options.side == CYASSL_CLIENT_END ? client : server);
+ if (ret != 0) return ret;
+
+ sendSz = BuildMessage(ssl, output, input, headerSz + finishedSz, handshake);
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ ssl->keys.dtls_epoch = epoch;
+ ssl->keys.dtls_sequence_number = sequence_number;
+ }
+ #endif
+
+ if (sendSz < 0)
+ return BUILD_MSG_ERROR;
+
+ if (!ssl->options.resuming) {
+#ifndef NO_SESSION_CACHE
+ AddSession(ssl); /* just try */
+#endif
+ if (ssl->options.side == CYASSL_CLIENT_END) {
+ ret = BuildFinished(ssl, &ssl->verifyHashes, server);
+ if (ret != 0) return ret;
+ }
+ else {
+ ssl->options.handShakeState = HANDSHAKE_DONE;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ /* Other side will soon receive our Finished, go to next
+ * epoch. */
+ ssl->keys.dtls_epoch++;
+ ssl->keys.dtls_sequence_number = 1;
+ }
+ #endif
+ }
+ }
+ else {
+ if (ssl->options.side == CYASSL_CLIENT_END) {
+ ssl->options.handShakeState = HANDSHAKE_DONE;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ /* Other side will soon receive our Finished, go to next
+ * epoch. */
+ ssl->keys.dtls_epoch++;
+ ssl->keys.dtls_sequence_number = 1;
+ }
+ #endif
+ }
+ else {
+ ret = BuildFinished(ssl, &ssl->verifyHashes, client);
+ if (ret != 0) return ret;
+ }
+ }
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("Finished", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("Finished", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ return SendBuffered(ssl);
+}
+
+#ifndef NO_CERTS
+int SendCertificate(CYASSL* ssl)
+{
+ int sendSz, length, ret = 0;
+ word32 i = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ word32 certSz, listSz;
+ byte* output = 0;
+
+ if (ssl->options.usingPSK_cipher) return 0; /* not needed */
+
+ if (ssl->options.sendVerify == SEND_BLANK_CERT) {
+ certSz = 0;
+ length = CERT_HEADER_SZ;
+ listSz = 0;
+ }
+ else {
+ certSz = ssl->buffers.certificate.length;
+ /* list + cert size */
+ length = certSz + 2 * CERT_HEADER_SZ;
+ listSz = certSz + CERT_HEADER_SZ;
+
+ /* may need to send rest of chain, already has leading size(s) */
+ if (ssl->buffers.certChain.buffer) {
+ length += ssl->buffers.certChain.length;
+ listSz += ssl->buffers.certChain.length;
+ }
+ }
+ sendSz = length + RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ }
+ #endif
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, length, certificate, ssl);
+
+ /* list total */
+ c32to24(listSz, output + i);
+ i += CERT_HEADER_SZ;
+
+ /* member */
+ if (certSz) {
+ c32to24(certSz, output + i);
+ i += CERT_HEADER_SZ;
+ XMEMCPY(output + i, ssl->buffers.certificate.buffer, certSz);
+ i += certSz;
+
+ /* send rest of chain? */
+ if (ssl->buffers.certChain.buffer) {
+ XMEMCPY(output + i, ssl->buffers.certChain.buffer,
+ ssl->buffers.certChain.length);
+ /* if add more to output adjust i
+ i += ssl->buffers.certChain.length; */
+ }
+ }
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("Certificate", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("Certificate", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+ #endif
+
+ if (ssl->options.side == CYASSL_SERVER_END)
+ ssl->options.serverState = SERVER_CERT_COMPLETE;
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ return 0;
+ else
+ return SendBuffered(ssl);
+}
+
+
+int SendCertificateRequest(CYASSL* ssl)
+{
+ byte *output;
+ int ret;
+ int sendSz;
+ word32 i = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+
+ int typeTotal = 1; /* only rsa for now */
+ int reqSz = ENUM_LEN + typeTotal + REQ_HEADER_SZ; /* add auth later */
+
+ if (IsAtLeastTLSv1_2(ssl))
+ reqSz += LENGTH_SZ + ssl->suites->hashSigAlgoSz;
+
+ if (ssl->options.usingPSK_cipher) return 0; /* not needed */
+
+ sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + reqSz;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ }
+ #endif
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, reqSz, certificate_request, ssl);
+
+ /* write to output */
+ output[i++] = (byte)typeTotal; /* # of types */
+ output[i++] = rsa_sign;
+
+ /* supported hash/sig */
+ if (IsAtLeastTLSv1_2(ssl)) {
+ c16toa(ssl->suites->hashSigAlgoSz, &output[i]);
+ i += LENGTH_SZ;
+
+ XMEMCPY(&output[i],
+ ssl->suites->hashSigAlgo, ssl->suites->hashSigAlgoSz);
+ i += ssl->suites->hashSigAlgoSz;
+ }
+
+ c16toa(0, &output[i]); /* auth's */
+ /* if add more to output, adjust i
+ i += REQ_HEADER_SZ; */
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("CertificateRequest", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("CertificateRequest", &ssl->timeoutInfo, output,
+ sendSz, ssl->heap);
+ #endif
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ return 0;
+ else
+ return SendBuffered(ssl);
+}
+#endif /* !NO_CERTS */
+
+
+int SendData(CYASSL* ssl, const void* data, int sz)
+{
+ int sent = 0, /* plainText size */
+ sendSz,
+ ret;
+
+ if (ssl->error == WANT_WRITE)
+ ssl->error = 0;
+
+ if (ssl->options.handShakeState != HANDSHAKE_DONE) {
+ int err;
+ CYASSL_MSG("handshake not complete, trying to finish");
+ if ( (err = CyaSSL_negotiate(ssl)) != SSL_SUCCESS)
+ return err;
+ }
+
+ /* last time system socket output buffer was full, try again to send */
+ if (ssl->buffers.outputBuffer.length > 0) {
+ CYASSL_MSG("output buffer was full, trying to send again");
+ if ( (ssl->error = SendBuffered(ssl)) < 0) {
+ CYASSL_ERROR(ssl->error);
+ if (ssl->error == SOCKET_ERROR_E && ssl->options.connReset)
+ return 0; /* peer reset */
+ return ssl->error;
+ }
+ else {
+ /* advance sent to previous sent + plain size just sent */
+ sent = ssl->buffers.prevSent + ssl->buffers.plainSz;
+ CYASSL_MSG("sent write buffered data");
+ }
+ }
+
+ for (;;) {
+#ifdef HAVE_MAX_FRAGMENT
+ int len = min(sz - sent, min(ssl->max_fragment, OUTPUT_RECORD_SIZE));
+#else
+ int len = min(sz - sent, OUTPUT_RECORD_SIZE);
+#endif
+ byte* out;
+ byte* sendBuffer = (byte*)data + sent; /* may switch on comp */
+ int buffSz = len; /* may switch on comp */
+#ifdef HAVE_LIBZ
+ byte comp[MAX_RECORD_SIZE + MAX_COMP_EXTRA];
+#endif
+
+ if (sent == sz) break;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ len = min(len, MAX_UDP_SIZE);
+ buffSz = len;
+ }
+#endif
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, len + COMP_EXTRA +
+ MAX_MSG_EXTRA)) != 0)
+ return ssl->error = ret;
+
+ /* get ouput buffer */
+ out = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+#ifdef HAVE_LIBZ
+ if (ssl->options.usingCompression) {
+ buffSz = myCompress(ssl, sendBuffer, buffSz, comp, sizeof(comp));
+ if (buffSz < 0) {
+ return buffSz;
+ }
+ sendBuffer = comp;
+ }
+#endif
+ sendSz = BuildMessage(ssl, out, sendBuffer, buffSz,
+ application_data);
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ if ( (ret = SendBuffered(ssl)) < 0) {
+ CYASSL_ERROR(ret);
+ /* store for next call if WANT_WRITE or user embedSend() that
+ doesn't present like WANT_WRITE */
+ ssl->buffers.plainSz = len;
+ ssl->buffers.prevSent = sent;
+ if (ret == SOCKET_ERROR_E && ssl->options.connReset)
+ return 0; /* peer reset */
+ return ssl->error = ret;
+ }
+
+ sent += len;
+
+ /* only one message per attempt */
+ if (ssl->options.partialWrite == 1) {
+ CYASSL_MSG("Paritial Write on, only sending one record");
+ break;
+ }
+ }
+
+ return sent;
+}
+
+/* process input data */
+int ReceiveData(CYASSL* ssl, byte* output, int sz, int peek)
+{
+ int size;
+
+ CYASSL_ENTER("ReceiveData()");
+
+ if (ssl->error == WANT_READ)
+ ssl->error = 0;
+
+ if (ssl->error != 0 && ssl->error != WANT_WRITE) {
+ CYASSL_MSG("User calling CyaSSL_read in error state, not allowed");
+ return ssl->error;
+ }
+
+ if (ssl->options.handShakeState != HANDSHAKE_DONE) {
+ int err;
+ CYASSL_MSG("Handshake not complete, trying to finish");
+ if ( (err = CyaSSL_negotiate(ssl)) != SSL_SUCCESS)
+ return err;
+ }
+
+ while (ssl->buffers.clearOutputBuffer.length == 0)
+ if ( (ssl->error = ProcessReply(ssl)) < 0) {
+ CYASSL_ERROR(ssl->error);
+ if (ssl->error == ZERO_RETURN) {
+ CYASSL_MSG("Zero return, no more data coming");
+ return 0; /* no more data coming */
+ }
+ if (ssl->error == SOCKET_ERROR_E) {
+ if (ssl->options.connReset || ssl->options.isClosed) {
+ CYASSL_MSG("Peer reset or closed, connection done");
+ return 0; /* peer reset or closed */
+ }
+ }
+ return ssl->error;
+ }
+
+ if (sz < (int)ssl->buffers.clearOutputBuffer.length)
+ size = sz;
+ else
+ size = ssl->buffers.clearOutputBuffer.length;
+
+ XMEMCPY(output, ssl->buffers.clearOutputBuffer.buffer, size);
+
+ if (peek == 0) {
+ ssl->buffers.clearOutputBuffer.length -= size;
+ ssl->buffers.clearOutputBuffer.buffer += size;
+ }
+
+ if (ssl->buffers.clearOutputBuffer.length == 0 &&
+ ssl->buffers.inputBuffer.dynamicFlag)
+ ShrinkInputBuffer(ssl, NO_FORCED_FREE);
+
+ CYASSL_LEAVE("ReceiveData()", size);
+ return size;
+}
+
+
+/* send alert message */
+int SendAlert(CYASSL* ssl, int severity, int type)
+{
+ byte input[ALERT_SIZE];
+ byte *output;
+ int sendSz;
+ int ret;
+ int dtlsExtra = 0;
+
+ /* if sendalert is called again for nonbloking */
+ if (ssl->options.sendAlertState != 0) {
+ ret = SendBuffered(ssl);
+ if (ret == 0)
+ ssl->options.sendAlertState = 0;
+ return ret;
+ }
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ dtlsExtra = DTLS_RECORD_EXTRA;
+ #endif
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl,
+ ALERT_SIZE + MAX_MSG_EXTRA + dtlsExtra)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ input[0] = (byte)severity;
+ input[1] = (byte)type;
+ ssl->alert_history.last_tx.code = type;
+ ssl->alert_history.last_tx.level = severity;
+ if (severity == alert_fatal) {
+ ssl->options.isClosed = 1; /* Don't send close_notify */
+ }
+
+ /* only send encrypted alert if handshake actually complete, otherwise
+ other side may not be able to handle it */
+ if (ssl->keys.encryptionOn && ssl->options.handShakeState == HANDSHAKE_DONE)
+ sendSz = BuildMessage(ssl, output, input, ALERT_SIZE, alert);
+ else {
+
+ AddRecordHeader(output, ALERT_SIZE, alert, ssl);
+ output += RECORD_HEADER_SZ;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ output += DTLS_RECORD_EXTRA;
+ #endif
+ XMEMCPY(output, input, ALERT_SIZE);
+
+ sendSz = RECORD_HEADER_SZ + ALERT_SIZE;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ sendSz += DTLS_RECORD_EXTRA;
+ #endif
+ }
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("Alert", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("Alert", &ssl->timeoutInfo, output, sendSz,ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ ssl->options.sendAlertState = 1;
+
+ return SendBuffered(ssl);
+}
+
+
+
+void SetErrorString(int error, char* str)
+{
+ const int max = CYASSL_MAX_ERROR_SZ; /* shorthand */
+
+#ifdef NO_ERROR_STRINGS
+
+ (void)error;
+ XSTRNCPY(str, "no support for error strings built in", max);
+
+#else
+
+ /* pass to CTaoCrypt */
+ if (error < MAX_CODE_E && error > MIN_CODE_E) {
+ CTaoCryptErrorString(error, str);
+ return;
+ }
+
+ switch (error) {
+
+ case UNSUPPORTED_SUITE :
+ XSTRNCPY(str, "unsupported cipher suite", max);
+ break;
+
+ case INPUT_CASE_ERROR :
+ XSTRNCPY(str, "input state error", max);
+ break;
+
+ case PREFIX_ERROR :
+ XSTRNCPY(str, "bad index to key rounds", max);
+ break;
+
+ case MEMORY_ERROR :
+ XSTRNCPY(str, "out of memory", max);
+ break;
+
+ case VERIFY_FINISHED_ERROR :
+ XSTRNCPY(str, "verify problem on finished", max);
+ break;
+
+ case VERIFY_MAC_ERROR :
+ XSTRNCPY(str, "verify mac problem", max);
+ break;
+
+ case PARSE_ERROR :
+ XSTRNCPY(str, "parse error on header", max);
+ break;
+
+ case SIDE_ERROR :
+ XSTRNCPY(str, "wrong client/server type", max);
+ break;
+
+ case NO_PEER_CERT :
+ XSTRNCPY(str, "peer didn't send cert", max);
+ break;
+
+ case UNKNOWN_HANDSHAKE_TYPE :
+ XSTRNCPY(str, "weird handshake type", max);
+ break;
+
+ case SOCKET_ERROR_E :
+ XSTRNCPY(str, "error state on socket", max);
+ break;
+
+ case SOCKET_NODATA :
+ XSTRNCPY(str, "expected data, not there", max);
+ break;
+
+ case INCOMPLETE_DATA :
+ XSTRNCPY(str, "don't have enough data to complete task", max);
+ break;
+
+ case UNKNOWN_RECORD_TYPE :
+ XSTRNCPY(str, "unknown type in record hdr", max);
+ break;
+
+ case DECRYPT_ERROR :
+ XSTRNCPY(str, "error during decryption", max);
+ break;
+
+ case FATAL_ERROR :
+ XSTRNCPY(str, "revcd alert fatal error", max);
+ break;
+
+ case ENCRYPT_ERROR :
+ XSTRNCPY(str, "error during encryption", max);
+ break;
+
+ case FREAD_ERROR :
+ XSTRNCPY(str, "fread problem", max);
+ break;
+
+ case NO_PEER_KEY :
+ XSTRNCPY(str, "need peer's key", max);
+ break;
+
+ case NO_PRIVATE_KEY :
+ XSTRNCPY(str, "need the private key", max);
+ break;
+
+ case NO_DH_PARAMS :
+ XSTRNCPY(str, "server missing DH params", max);
+ break;
+
+ case RSA_PRIVATE_ERROR :
+ XSTRNCPY(str, "error during rsa priv op", max);
+ break;
+
+ case MATCH_SUITE_ERROR :
+ XSTRNCPY(str, "can't match cipher suite", max);
+ break;
+
+ case BUILD_MSG_ERROR :
+ XSTRNCPY(str, "build message failure", max);
+ break;
+
+ case BAD_HELLO :
+ XSTRNCPY(str, "client hello malformed", max);
+ break;
+
+ case DOMAIN_NAME_MISMATCH :
+ XSTRNCPY(str, "peer subject name mismatch", max);
+ break;
+
+ case WANT_READ :
+ case SSL_ERROR_WANT_READ :
+ XSTRNCPY(str, "non-blocking socket wants data to be read", max);
+ break;
+
+ case NOT_READY_ERROR :
+ XSTRNCPY(str, "handshake layer not ready yet, complete first", max);
+ break;
+
+ case PMS_VERSION_ERROR :
+ XSTRNCPY(str, "premaster secret version mismatch error", max);
+ break;
+
+ case VERSION_ERROR :
+ XSTRNCPY(str, "record layer version error", max);
+ break;
+
+ case WANT_WRITE :
+ case SSL_ERROR_WANT_WRITE :
+ XSTRNCPY(str, "non-blocking socket write buffer full", max);
+ break;
+
+ case BUFFER_ERROR :
+ XSTRNCPY(str, "malformed buffer input error", max);
+ break;
+
+ case VERIFY_CERT_ERROR :
+ XSTRNCPY(str, "verify problem on certificate", max);
+ break;
+
+ case VERIFY_SIGN_ERROR :
+ XSTRNCPY(str, "verify problem based on signature", max);
+ break;
+
+ case CLIENT_ID_ERROR :
+ XSTRNCPY(str, "psk client identity error", max);
+ break;
+
+ case SERVER_HINT_ERROR:
+ XSTRNCPY(str, "psk server hint error", max);
+ break;
+
+ case PSK_KEY_ERROR:
+ XSTRNCPY(str, "psk key callback error", max);
+ break;
+
+ case NTRU_KEY_ERROR:
+ XSTRNCPY(str, "NTRU key error", max);
+ break;
+
+ case NTRU_DRBG_ERROR:
+ XSTRNCPY(str, "NTRU drbg error", max);
+ break;
+
+ case NTRU_ENCRYPT_ERROR:
+ XSTRNCPY(str, "NTRU encrypt error", max);
+ break;
+
+ case NTRU_DECRYPT_ERROR:
+ XSTRNCPY(str, "NTRU decrypt error", max);
+ break;
+
+ case ZLIB_INIT_ERROR:
+ XSTRNCPY(str, "zlib init error", max);
+ break;
+
+ case ZLIB_COMPRESS_ERROR:
+ XSTRNCPY(str, "zlib compress error", max);
+ break;
+
+ case ZLIB_DECOMPRESS_ERROR:
+ XSTRNCPY(str, "zlib decompress error", max);
+ break;
+
+ case GETTIME_ERROR:
+ XSTRNCPY(str, "gettimeofday() error", max);
+ break;
+
+ case GETITIMER_ERROR:
+ XSTRNCPY(str, "getitimer() error", max);
+ break;
+
+ case SIGACT_ERROR:
+ XSTRNCPY(str, "sigaction() error", max);
+ break;
+
+ case SETITIMER_ERROR:
+ XSTRNCPY(str, "setitimer() error", max);
+ break;
+
+ case LENGTH_ERROR:
+ XSTRNCPY(str, "record layer length error", max);
+ break;
+
+ case PEER_KEY_ERROR:
+ XSTRNCPY(str, "cant decode peer key", max);
+ break;
+
+ case ZERO_RETURN:
+ case SSL_ERROR_ZERO_RETURN:
+ XSTRNCPY(str, "peer sent close notify alert", max);
+ break;
+
+ case ECC_CURVETYPE_ERROR:
+ XSTRNCPY(str, "Bad ECC Curve Type or unsupported", max);
+ break;
+
+ case ECC_CURVE_ERROR:
+ XSTRNCPY(str, "Bad ECC Curve or unsupported", max);
+ break;
+
+ case ECC_PEERKEY_ERROR:
+ XSTRNCPY(str, "Bad ECC Peer Key", max);
+ break;
+
+ case ECC_MAKEKEY_ERROR:
+ XSTRNCPY(str, "ECC Make Key failure", max);
+ break;
+
+ case ECC_EXPORT_ERROR:
+ XSTRNCPY(str, "ECC Export Key failure", max);
+ break;
+
+ case ECC_SHARED_ERROR:
+ XSTRNCPY(str, "ECC DHE shared failure", max);
+ break;
+
+ case NOT_CA_ERROR:
+ XSTRNCPY(str, "Not a CA by basic constraint error", max);
+ break;
+
+ case BAD_PATH_ERROR:
+ XSTRNCPY(str, "Bad path for opendir error", max);
+ break;
+
+ case BAD_CERT_MANAGER_ERROR:
+ XSTRNCPY(str, "Bad Cert Manager error", max);
+ break;
+
+ case OCSP_CERT_REVOKED:
+ XSTRNCPY(str, "OCSP Cert revoked", max);
+ break;
+
+ case CRL_CERT_REVOKED:
+ XSTRNCPY(str, "CRL Cert revoked", max);
+ break;
+
+ case CRL_MISSING:
+ XSTRNCPY(str, "CRL missing, not loaded", max);
+ break;
+
+ case MONITOR_RUNNING_E:
+ XSTRNCPY(str, "CRL monitor already running", max);
+ break;
+
+ case THREAD_CREATE_E:
+ XSTRNCPY(str, "Thread creation problem", max);
+ break;
+
+ case OCSP_NEED_URL:
+ XSTRNCPY(str, "OCSP need URL", max);
+ break;
+
+ case OCSP_CERT_UNKNOWN:
+ XSTRNCPY(str, "OCSP Cert unknown", max);
+ break;
+
+ case OCSP_LOOKUP_FAIL:
+ XSTRNCPY(str, "OCSP Responder lookup fail", max);
+ break;
+
+ case MAX_CHAIN_ERROR:
+ XSTRNCPY(str, "Maximum Chain Depth Exceeded", max);
+ break;
+
+ case COOKIE_ERROR:
+ XSTRNCPY(str, "DTLS Cookie Error", max);
+ break;
+
+ case SEQUENCE_ERROR:
+ XSTRNCPY(str, "DTLS Sequence Error", max);
+ break;
+
+ case SUITES_ERROR:
+ XSTRNCPY(str, "Suites Pointer Error", max);
+ break;
+
+ case SSL_NO_PEM_HEADER:
+ XSTRNCPY(str, "No PEM Header Error", max);
+ break;
+
+ case OUT_OF_ORDER_E:
+ XSTRNCPY(str, "Out of order message, fatal", max);
+ break;
+
+ case BAD_KEA_TYPE_E:
+ XSTRNCPY(str, "Bad KEA type found", max);
+ break;
+
+ case SANITY_CIPHER_E:
+ XSTRNCPY(str, "Sanity check on ciphertext failed", max);
+ break;
+
+ case RECV_OVERFLOW_E:
+ XSTRNCPY(str, "Receive callback returned more than requested", max);
+ break;
+
+ case GEN_COOKIE_E:
+ XSTRNCPY(str, "Generate Cookie Error", max);
+ break;
+
+ case NO_PEER_VERIFY:
+ XSTRNCPY(str, "Need peer certificate verify Error", max);
+ break;
+
+ case FWRITE_ERROR:
+ XSTRNCPY(str, "fwrite Error", max);
+ break;
+
+ case CACHE_MATCH_ERROR:
+ XSTRNCPY(str, "Cache restore header match Error", max);
+ break;
+
+ case UNKNOWN_SNI_HOST_NAME_E:
+ XSTRNCPY(str, "Unrecognized host name Error", max);
+ break;
+
+ case KEYUSE_SIGNATURE_E:
+ XSTRNCPY(str, "Key Use digitalSignature not set Error", max);
+ break;
+
+ case KEYUSE_ENCIPHER_E:
+ XSTRNCPY(str, "Key Use keyEncipherment not set Error", max);
+ break;
+
+ case EXTKEYUSE_AUTH_E:
+ XSTRNCPY(str, "Ext Key Use server/client auth not set Error", max);
+ break;
+
+ default :
+ XSTRNCPY(str, "unknown error number", max);
+ }
+
+#endif /* NO_ERROR_STRINGS */
+}
+
+
+
+/* be sure to add to cipher_name_idx too !!!! */
+static const char* const cipher_names[] =
+{
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
+ "RC4-SHA",
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
+ "RC4-MD5",
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
+ "DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
+ "AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
+ "AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
+ "NULL-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
+ "NULL-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
+ "DHE-RSA-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
+ "DHE-RSA-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
+ "PSK-AES128-CBC-SHA256",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
+ "PSK-AES128-CBC-SHA",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
+ "PSK-AES256-CBC-SHA",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
+ "PSK-AES128-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
+ "PSK-AES256-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
+ "PSK-NULL-SHA256",
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
+ "PSK-NULL-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
+ "HC128-MD5",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
+ "HC128-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
+ "HC128-B2B256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
+ "AES128-B2B256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
+ "AES256-B2B256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
+ "RABBIT-SHA",
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
+ "NTRU-RC4-SHA",
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
+ "NTRU-DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
+ "NTRU-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
+ "NTRU-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
+ "AES128-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
+ "AES256-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
+ "ECDHE-ECDSA-AES128-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
+ "ECDHE-ECDSA-AES256-CCM-8",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
+ "ECDHE-RSA-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
+ "ECDHE-RSA-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
+ "ECDHE-ECDSA-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
+ "ECDHE-ECDSA-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
+ "ECDHE-RSA-RC4-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
+ "ECDHE-RSA-DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
+ "ECDHE-ECDSA-RC4-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
+ "ECDHE-ECDSA-DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
+ "AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
+ "AES256-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
+ "DHE-RSA-AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
+ "DHE-RSA-AES256-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
+ "ECDH-RSA-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
+ "ECDH-RSA-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
+ "ECDH-ECDSA-AES128-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
+ "ECDH-ECDSA-AES256-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
+ "ECDH-RSA-RC4-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
+ "ECDH-RSA-DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
+ "ECDH-ECDSA-RC4-SHA",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
+ "ECDH-ECDSA-DES-CBC3-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
+ "AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
+ "AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
+ "DHE-RSA-AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
+ "DHE-RSA-AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+ "ECDHE-RSA-AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+ "ECDHE-RSA-AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+ "ECDHE-ECDSA-AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+ "ECDHE-ECDSA-AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
+ "ECDH-RSA-AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
+ "ECDH-RSA-AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
+ "ECDH-ECDSA-AES128-GCM-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
+ "ECDH-ECDSA-AES256-GCM-SHA384",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
+ "CAMELLIA128-SHA",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
+ "DHE-RSA-CAMELLIA128-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
+ "CAMELLIA256-SHA",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
+ "DHE-RSA-CAMELLIA256-SHA",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ "CAMELLIA128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ "DHE-RSA-CAMELLIA128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ "CAMELLIA256-SHA256",
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ "DHE-RSA-CAMELLIA256-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
+ "ECDHE-RSA-AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
+ "ECDHE-ECDSA-AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
+ "ECDH-RSA-AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
+ "ECDH-ECDSA-AES128-SHA256",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
+ "ECDHE-RSA-AES256-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
+ "ECDHE-ECDSA-AES256-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
+ "ECDH-RSA-AES256-SHA384",
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
+ "ECDH-ECDSA-AES256-SHA384",
+#endif
+
+};
+
+
+
+/* cipher suite number that matches above name table */
+static int cipher_name_idx[] =
+{
+
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA
+ SSL_RSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5
+ SSL_RSA_WITH_RC4_128_MD5,
+#endif
+
+#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
+ SSL_RSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
+ TLS_RSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
+ TLS_RSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA
+ TLS_RSA_WITH_NULL_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256
+ TLS_RSA_WITH_NULL_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
+ TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
+ TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
+ TLS_PSK_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
+ TLS_PSK_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
+ TLS_PSK_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8
+ TLS_PSK_WITH_AES_128_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8
+ TLS_PSK_WITH_AES_256_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256
+ TLS_PSK_WITH_NULL_SHA256,
+#endif
+
+#ifdef BUILD_TLS_PSK_WITH_NULL_SHA
+ TLS_PSK_WITH_NULL_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5
+ TLS_RSA_WITH_HC_128_MD5,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA
+ TLS_RSA_WITH_HC_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_HC_128_B2B256
+ TLS_RSA_WITH_HC_128_B2B256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
+ TLS_RSA_WITH_AES_128_CBC_B2B256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
+ TLS_RSA_WITH_AES_256_CBC_B2B256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA
+ TLS_RSA_WITH_RABBIT_SHA,
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
+ TLS_NTRU_RSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
+ TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
+ TLS_NTRU_RSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
+ TLS_NTRU_RSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8
+ TLS_RSA_WITH_AES_128_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8
+ TLS_RSA_WITH_AES_256_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
+ TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
+ TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
+ TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
+ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
+ TLS_ECDHE_RSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
+ TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
+ TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
+ TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
+ TLS_RSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
+ TLS_RSA_WITH_AES_256_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
+ TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
+ TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
+ TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
+ TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
+ TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
+ TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
+ TLS_ECDH_RSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
+ TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
+ TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
+ TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
+ TLS_RSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
+ TLS_RSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
+ TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
+ TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+ TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+ TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+ TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+ TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
+ TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
+ TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
+ TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
+ TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
+ TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
+ TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
+ TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
+ TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
+ TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
+ TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
+ TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
+ TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
+ TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
+ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
+ TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
+#endif
+
+#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
+ TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
+#endif
+};
+
+
+/* return true if set, else false */
+/* only supports full name from cipher_name[] delimited by : */
+int SetCipherList(Suites* s, const char* list)
+{
+ int ret = 0, i;
+ char name[MAX_SUITE_NAME];
+
+ char needle[] = ":";
+ char* haystack = (char*)list;
+ char* prev;
+
+ const int suiteSz = sizeof(cipher_names) / sizeof(cipher_names[0]);
+ int idx = 0;
+ int haveRSA = 0, haveECDSA = 0;
+
+ if (s == NULL) {
+ CYASSL_MSG("SetCipherList suite pointer error");
+ return 0;
+ }
+
+ if (!list)
+ return 0;
+
+ if (*list == 0) return 1; /* CyaSSL default */
+
+ if (XSTRNCMP(haystack, "ALL", 3) == 0) return 1; /* CyaSSL defualt */
+
+ for(;;) {
+ word32 len;
+ prev = haystack;
+ haystack = XSTRSTR(haystack, needle);
+
+ if (!haystack) /* last cipher */
+ len = min(sizeof(name), (word32)XSTRLEN(prev));
+ else
+ len = min(sizeof(name), (word32)(haystack - prev));
+
+ XSTRNCPY(name, prev, len);
+ name[(len == sizeof(name)) ? len - 1 : len] = 0;
+
+ for (i = 0; i < suiteSz; i++)
+ if (XSTRNCMP(name, cipher_names[i], sizeof(name)) == 0) {
+ if (XSTRSTR(name, "EC") || XSTRSTR(name, "CCM"))
+ s->suites[idx++] = ECC_BYTE; /* ECC suite */
+ else
+ s->suites[idx++] = 0x00; /* normal */
+ s->suites[idx++] = (byte)cipher_name_idx[i];
+
+ /* The suites are either ECDSA, RSA, or PSK. The RSA suites
+ * don't necessarily have RSA in the name. */
+ if ((haveECDSA == 0) && XSTRSTR(name, "ECDSA")) {
+ haveECDSA = 1;
+ }
+ else if ((haveRSA == 0) && (XSTRSTR(name, "PSK") == NULL)) {
+ haveRSA = 1;
+ }
+
+ if (!ret) ret = 1; /* found at least one */
+ break;
+ }
+ if (!haystack) break;
+ haystack++;
+ }
+
+ if (ret) {
+ s->setSuites = 1;
+ s->suiteSz = (word16)idx;
+
+ idx = 0;
+
+ if (haveECDSA) {
+ #ifdef CYASSL_SHA384
+ s->hashSigAlgo[idx++] = sha384_mac;
+ s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ #endif
+ #ifndef NO_SHA256
+ s->hashSigAlgo[idx++] = sha256_mac;
+ s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ #endif
+ s->hashSigAlgo[idx++] = sha_mac;
+ s->hashSigAlgo[idx++] = ecc_dsa_sa_algo;
+ }
+
+ if (haveRSA) {
+ #ifdef CYASSL_SHA384
+ s->hashSigAlgo[idx++] = sha384_mac;
+ s->hashSigAlgo[idx++] = rsa_sa_algo;
+ #endif
+ #ifndef NO_SHA256
+ s->hashSigAlgo[idx++] = sha256_mac;
+ s->hashSigAlgo[idx++] = rsa_sa_algo;
+ #endif
+ s->hashSigAlgo[idx++] = sha_mac;
+ s->hashSigAlgo[idx++] = rsa_sa_algo;
+ }
+
+ s->hashSigAlgoSz = (word16)idx;
+ }
+
+ return ret;
+}
+
+
+static void PickHashSigAlgo(CYASSL* ssl,
+ const byte* hashSigAlgo, word32 hashSigAlgoSz)
+{
+ word32 i;
+
+ ssl->suites->sigAlgo = ssl->specs.sig_algo;
+ ssl->suites->hashAlgo = sha_mac;
+
+ for (i = 0; i < hashSigAlgoSz; i += 2) {
+ if (hashSigAlgo[i+1] == ssl->specs.sig_algo) {
+ if (hashSigAlgo[i] == sha_mac) {
+ break;
+ }
+ #ifndef NO_SHA256
+ else if (hashSigAlgo[i] == sha256_mac) {
+ ssl->suites->hashAlgo = sha256_mac;
+ break;
+ }
+ #endif
+ #ifdef CYASSL_SHA384
+ else if (hashSigAlgo[i] == sha384_mac) {
+ ssl->suites->hashAlgo = sha384_mac;
+ break;
+ }
+ #endif
+ }
+ }
+}
+
+
+#ifdef CYASSL_CALLBACKS
+
+ /* Initialisze HandShakeInfo */
+ void InitHandShakeInfo(HandShakeInfo* info)
+ {
+ int i;
+
+ info->cipherName[0] = 0;
+ for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++)
+ info->packetNames[i][0] = 0;
+ info->numberPackets = 0;
+ info->negotiationError = 0;
+ }
+
+ /* Set Final HandShakeInfo parameters */
+ void FinishHandShakeInfo(HandShakeInfo* info, const CYASSL* ssl)
+ {
+ int i;
+ int sz = sizeof(cipher_name_idx)/sizeof(int);
+
+ for (i = 0; i < sz; i++)
+ if (ssl->options.cipherSuite == (byte)cipher_name_idx[i]) {
+ if (ssl->options.cipherSuite0 == ECC_BYTE)
+ continue; /* ECC suites at end */
+ XSTRNCPY(info->cipherName, cipher_names[i], MAX_CIPHERNAME_SZ);
+ break;
+ }
+
+ /* error max and min are negative numbers */
+ if (ssl->error <= MIN_PARAM_ERR && ssl->error >= MAX_PARAM_ERR)
+ info->negotiationError = ssl->error;
+ }
+
+
+ /* Add name to info packet names, increase packet name count */
+ void AddPacketName(const char* name, HandShakeInfo* info)
+ {
+ if (info->numberPackets < MAX_PACKETS_HANDSHAKE) {
+ XSTRNCPY(info->packetNames[info->numberPackets++], name,
+ MAX_PACKETNAME_SZ);
+ }
+ }
+
+
+ /* Initialisze TimeoutInfo */
+ void InitTimeoutInfo(TimeoutInfo* info)
+ {
+ int i;
+
+ info->timeoutName[0] = 0;
+ info->flags = 0;
+
+ for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++) {
+ info->packets[i].packetName[0] = 0;
+ info->packets[i].timestamp.tv_sec = 0;
+ info->packets[i].timestamp.tv_usec = 0;
+ info->packets[i].bufferValue = 0;
+ info->packets[i].valueSz = 0;
+ }
+ info->numberPackets = 0;
+ info->timeoutValue.tv_sec = 0;
+ info->timeoutValue.tv_usec = 0;
+ }
+
+
+ /* Free TimeoutInfo */
+ void FreeTimeoutInfo(TimeoutInfo* info, void* heap)
+ {
+ int i;
+ (void)heap;
+ for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++)
+ if (info->packets[i].bufferValue) {
+ XFREE(info->packets[i].bufferValue, heap, DYNAMIC_TYPE_INFO);
+ info->packets[i].bufferValue = 0;
+ }
+
+ }
+
+
+ /* Add PacketInfo to TimeoutInfo */
+ void AddPacketInfo(const char* name, TimeoutInfo* info, const byte* data,
+ int sz, void* heap)
+ {
+ if (info->numberPackets < (MAX_PACKETS_HANDSHAKE - 1)) {
+ Timeval currTime;
+
+ /* may add name after */
+ if (name)
+ XSTRNCPY(info->packets[info->numberPackets].packetName, name,
+ MAX_PACKETNAME_SZ);
+
+ /* add data, put in buffer if bigger than static buffer */
+ info->packets[info->numberPackets].valueSz = sz;
+ if (sz < MAX_VALUE_SZ)
+ XMEMCPY(info->packets[info->numberPackets].value, data, sz);
+ else {
+ info->packets[info->numberPackets].bufferValue =
+ XMALLOC(sz, heap, DYNAMIC_TYPE_INFO);
+ if (!info->packets[info->numberPackets].bufferValue)
+ /* let next alloc catch, just don't fill, not fatal here */
+ info->packets[info->numberPackets].valueSz = 0;
+ else
+ XMEMCPY(info->packets[info->numberPackets].bufferValue,
+ data, sz);
+ }
+ gettimeofday(&currTime, 0);
+ info->packets[info->numberPackets].timestamp.tv_sec =
+ currTime.tv_sec;
+ info->packets[info->numberPackets].timestamp.tv_usec =
+ currTime.tv_usec;
+ info->numberPackets++;
+ }
+ }
+
+
+ /* Add packet name to previsouly added packet info */
+ void AddLateName(const char* name, TimeoutInfo* info)
+ {
+ /* make sure we have a valid previous one */
+ if (info->numberPackets > 0 && info->numberPackets <
+ MAX_PACKETS_HANDSHAKE) {
+ XSTRNCPY(info->packets[info->numberPackets - 1].packetName, name,
+ MAX_PACKETNAME_SZ);
+ }
+ }
+
+ /* Add record header to previsouly added packet info */
+ void AddLateRecordHeader(const RecordLayerHeader* rl, TimeoutInfo* info)
+ {
+ /* make sure we have a valid previous one */
+ if (info->numberPackets > 0 && info->numberPackets <
+ MAX_PACKETS_HANDSHAKE) {
+ if (info->packets[info->numberPackets - 1].bufferValue)
+ XMEMCPY(info->packets[info->numberPackets - 1].bufferValue, rl,
+ RECORD_HEADER_SZ);
+ else
+ XMEMCPY(info->packets[info->numberPackets - 1].value, rl,
+ RECORD_HEADER_SZ);
+ }
+ }
+
+#endif /* CYASSL_CALLBACKS */
+
+
+
+/* client only parts */
+#ifndef NO_CYASSL_CLIENT
+
+ int SendClientHello(CYASSL* ssl)
+ {
+ byte *output;
+ word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int sendSz;
+ int idSz = ssl->options.resuming ? ID_LEN : 0;
+ int ret;
+
+ if (ssl->suites == NULL) {
+ CYASSL_MSG("Bad suites pointer in SendClientHello");
+ return SUITES_ERROR;
+ }
+
+ length = VERSION_SZ + RAN_LEN
+ + idSz + ENUM_LEN
+ + ssl->suites->suiteSz + SUITE_LEN
+ + COMP_LEN + ENUM_LEN;
+
+#ifdef HAVE_TLS_EXTENSIONS
+ length += TLSX_GetRequestSize(ssl);
+#else
+ if (IsAtLeastTLSv1_2(ssl) && ssl->suites->hashSigAlgoSz) {
+ length += ssl->suites->hashSigAlgoSz + HELLO_EXT_SZ;
+ }
+#endif
+ sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ length += ENUM_LEN; /* cookie */
+ if (ssl->arrays->cookieSz != 0) length += ssl->arrays->cookieSz;
+ sendSz = length + DTLS_HANDSHAKE_HEADER_SZ + DTLS_RECORD_HEADER_SZ;
+ idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
+ }
+#endif
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, length, client_hello, ssl);
+
+ /* client hello, first version */
+ output[idx++] = ssl->version.major;
+ output[idx++] = ssl->version.minor;
+ ssl->chVersion = ssl->version; /* store in case changed */
+
+ /* then random */
+ if (ssl->options.connectState == CONNECT_BEGIN) {
+ ret = RNG_GenerateBlock(ssl->rng, output + idx, RAN_LEN);
+ if (ret != 0)
+ return ret;
+
+ /* store random */
+ XMEMCPY(ssl->arrays->clientRandom, output + idx, RAN_LEN);
+ } else {
+#ifdef CYASSL_DTLS
+ /* send same random on hello again */
+ XMEMCPY(output + idx, ssl->arrays->clientRandom, RAN_LEN);
+#endif
+ }
+ idx += RAN_LEN;
+
+ /* then session id */
+ output[idx++] = (byte)idSz;
+ if (idSz) {
+ XMEMCPY(output + idx, ssl->session.sessionID, ID_LEN);
+ idx += ID_LEN;
+ }
+
+ /* then DTLS cookie */
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ byte cookieSz = ssl->arrays->cookieSz;
+
+ output[idx++] = cookieSz;
+ if (cookieSz) {
+ XMEMCPY(&output[idx], ssl->arrays->cookie, cookieSz);
+ idx += cookieSz;
+ }
+ }
+#endif
+ /* then cipher suites */
+ c16toa(ssl->suites->suiteSz, output + idx);
+ idx += 2;
+ XMEMCPY(output + idx, &ssl->suites->suites, ssl->suites->suiteSz);
+ idx += ssl->suites->suiteSz;
+
+ /* last, compression */
+ output[idx++] = COMP_LEN;
+ if (ssl->options.usingCompression)
+ output[idx++] = ZLIB_COMPRESSION;
+ else
+ output[idx++] = NO_COMPRESSION;
+
+#ifdef HAVE_TLS_EXTENSIONS
+ idx += TLSX_WriteRequest(ssl, output + idx);
+
+ (void)idx; /* suppress analyzer warning, keep idx current */
+#else
+ if (IsAtLeastTLSv1_2(ssl) && ssl->suites->hashSigAlgoSz)
+ {
+ int i;
+ /* add in the extensions length */
+ c16toa(HELLO_EXT_LEN + ssl->suites->hashSigAlgoSz, output + idx);
+ idx += 2;
+
+ c16toa(HELLO_EXT_SIG_ALGO, output + idx);
+ idx += 2;
+ c16toa(HELLO_EXT_SIGALGO_SZ+ssl->suites->hashSigAlgoSz, output+idx);
+ idx += 2;
+ c16toa(ssl->suites->hashSigAlgoSz, output + idx);
+ idx += 2;
+ for (i = 0; i < ssl->suites->hashSigAlgoSz; i++, idx++) {
+ output[idx] = ssl->suites->hashSigAlgo[i];
+ }
+ }
+#endif
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ ssl->options.clientState = CLIENT_HELLO_COMPLETE;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("ClientHello", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ClientHello", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+#endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ return SendBuffered(ssl);
+ }
+
+
+ static int DoHelloVerifyRequest(CYASSL* ssl, const byte* input,
+ word32* inOutIdx, word32 size)
+ {
+ ProtocolVersion pv;
+ byte cookieSz;
+ word32 begin = *inOutIdx;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("HelloVerifyRequest",
+ &ssl->handShakeInfo);
+ if (ssl->toInfoOn) AddLateName("HelloVerifyRequest", &ssl->timeoutInfo);
+#endif
+
+#ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ DtlsPoolReset(ssl);
+ }
+#endif
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN + OPAQUE8_LEN > size)
+ return BUFFER_ERROR;
+
+ XMEMCPY(&pv, input + *inOutIdx, OPAQUE16_LEN);
+ *inOutIdx += OPAQUE16_LEN;
+
+ cookieSz = input[(*inOutIdx)++];
+
+ if (cookieSz) {
+ if ((*inOutIdx - begin) + cookieSz > size)
+ return BUFFER_ERROR;
+
+#ifdef CYASSL_DTLS
+ if (cookieSz <= MAX_COOKIE_LEN) {
+ XMEMCPY(ssl->arrays->cookie, input + *inOutIdx, cookieSz);
+ ssl->arrays->cookieSz = cookieSz;
+ }
+#endif
+ *inOutIdx += cookieSz;
+ }
+
+ ssl->options.serverState = SERVER_HELLOVERIFYREQUEST_COMPLETE;
+ return 0;
+ }
+
+
+ static int DoServerHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ word32 helloSz)
+ {
+ byte b;
+ ProtocolVersion pv;
+ byte compression;
+ word32 i = *inOutIdx;
+ word32 begin = i;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("ServerHello", &ssl->handShakeInfo);
+ if (ssl->toInfoOn) AddLateName("ServerHello", &ssl->timeoutInfo);
+#endif
+
+ /* protocol version, random and session id length check */
+ if ((i - begin) + OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ /* protocol version */
+ XMEMCPY(&pv, input + i, OPAQUE16_LEN);
+ i += OPAQUE16_LEN;
+
+ if (pv.minor > ssl->version.minor) {
+ CYASSL_MSG("Server using higher version, fatal error");
+ return VERSION_ERROR;
+ }
+ else if (pv.minor < ssl->version.minor) {
+ CYASSL_MSG("server using lower version");
+
+ if (!ssl->options.downgrade) {
+ CYASSL_MSG(" no downgrade allowed, fatal error");
+ return VERSION_ERROR;
+ }
+
+ if (pv.minor == SSLv3_MINOR) {
+ /* turn off tls */
+ CYASSL_MSG(" downgrading to SSLv3");
+ ssl->options.tls = 0;
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = SSLv3_MINOR;
+ }
+ else if (pv.minor == TLSv1_MINOR) {
+ /* turn off tls 1.1+ */
+ CYASSL_MSG(" downgrading to TLSv1");
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = TLSv1_MINOR;
+ }
+ else if (pv.minor == TLSv1_1_MINOR) {
+ CYASSL_MSG(" downgrading to TLSv1.1");
+ ssl->version.minor = TLSv1_1_MINOR;
+ }
+ }
+
+ /* random */
+ XMEMCPY(ssl->arrays->serverRandom, input + i, RAN_LEN);
+ i += RAN_LEN;
+
+ /* session id */
+ b = input[i++];
+
+ if (b == ID_LEN) {
+ if ((i - begin) + ID_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ XMEMCPY(ssl->arrays->sessionID, input + i, min(b, ID_LEN));
+ i += ID_LEN;
+ ssl->options.haveSessionId = 1;
+ }
+ else if (b) {
+ CYASSL_MSG("Invalid session ID size");
+ return BUFFER_ERROR; /* session ID nor 0 neither 32 bytes long */
+ }
+
+ /* suite and compression */
+ if ((i - begin) + OPAQUE16_LEN + OPAQUE8_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ ssl->options.cipherSuite0 = input[i++];
+ ssl->options.cipherSuite = input[i++];
+ compression = input[i++];
+
+ if (compression != ZLIB_COMPRESSION && ssl->options.usingCompression) {
+ CYASSL_MSG("Server refused compression, turning off");
+ ssl->options.usingCompression = 0; /* turn off if server refused */
+ }
+
+ *inOutIdx = i;
+
+ /* tls extensions */
+ if ( (i - begin) < helloSz) {
+#ifdef HAVE_TLS_EXTENSIONS
+ if (IsTLS(ssl)) {
+ int ret = 0;
+ word16 totalExtSz;
+ Suites clSuites; /* just for compatibility right now */
+
+ if ((i - begin) + OPAQUE16_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ ato16(&input[i], &totalExtSz);
+ i += OPAQUE16_LEN;
+
+ if ((i - begin) + totalExtSz > helloSz)
+ return BUFFER_ERROR;
+
+ if ((ret = TLSX_Parse(ssl, (byte *) input + i,
+ totalExtSz, 0, &clSuites)))
+ return ret;
+
+ i += totalExtSz;
+ *inOutIdx = i;
+ }
+ else
+#endif
+ *inOutIdx = begin + helloSz; /* skip extensions */
+ }
+
+ ssl->options.serverState = SERVER_HELLO_COMPLETE;
+
+ if (ssl->options.resuming) {
+ if (ssl->options.haveSessionId && XMEMCMP(ssl->arrays->sessionID,
+ ssl->session.sessionID, ID_LEN) == 0) {
+ if (SetCipherSpecs(ssl) == 0) {
+ int ret = -1;
+
+ XMEMCPY(ssl->arrays->masterSecret,
+ ssl->session.masterSecret, SECRET_LEN);
+ #ifdef NO_OLD_TLS
+ ret = DeriveTlsKeys(ssl);
+ #else
+ #ifndef NO_TLS
+ if (ssl->options.tls)
+ ret = DeriveTlsKeys(ssl);
+ #endif
+ if (!ssl->options.tls)
+ ret = DeriveKeys(ssl);
+ #endif
+ ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
+
+ return ret;
+ }
+ else {
+ CYASSL_MSG("Unsupported cipher suite, DoServerHello");
+ return UNSUPPORTED_SUITE;
+ }
+ }
+ else {
+ CYASSL_MSG("Server denied resumption attempt");
+ ssl->options.resuming = 0; /* server denied resumption try */
+ }
+ }
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ DtlsPoolReset(ssl);
+ }
+ #endif
+
+ return SetCipherSpecs(ssl);
+ }
+
+
+#ifndef NO_CERTS
+ /* just read in and ignore for now TODO: */
+ static int DoCertificateRequest(CYASSL* ssl, const byte* input, word32*
+ inOutIdx, word32 size)
+ {
+ word16 len;
+ word32 begin = *inOutIdx;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("CertificateRequest", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("CertificateRequest", &ssl->timeoutInfo);
+ #endif
+
+ if ((*inOutIdx - begin) + OPAQUE8_LEN > size)
+ return BUFFER_ERROR;
+
+ len = input[(*inOutIdx)++];
+
+ if ((*inOutIdx - begin) + len > size)
+ return BUFFER_ERROR;
+
+ /* types, read in here */
+ *inOutIdx += len;
+
+ /* signature and hash signature algorithm */
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &len);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + len > size)
+ return BUFFER_ERROR;
+
+ PickHashSigAlgo(ssl, input + *inOutIdx, len);
+ *inOutIdx += len;
+ }
+
+ /* authorities */
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &len);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + len > size)
+ return BUFFER_ERROR;
+
+ while (len) {
+ word16 dnSz;
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &dnSz);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + dnSz > size)
+ return BUFFER_ERROR;
+
+ *inOutIdx += dnSz;
+ len -= OPAQUE16_LEN + dnSz;
+ }
+
+ /* don't send client cert or cert verify if user hasn't provided
+ cert and private key */
+ if (ssl->buffers.certificate.buffer && ssl->buffers.key.buffer)
+ ssl->options.sendVerify = SEND_CERT;
+ else if (IsTLS(ssl))
+ ssl->options.sendVerify = SEND_BLANK_CERT;
+
+ return 0;
+ }
+#endif /* !NO_CERTS */
+
+
+ static int DoServerKeyExchange(CYASSL* ssl, const byte* input,
+ word32* inOutIdx, word32 size)
+ {
+ word16 length = 0;
+ word32 begin = *inOutIdx;
+ int ret = 0;
+
+ (void)length; /* shut up compiler warnings */
+ (void)begin;
+ (void)ssl;
+ (void)input;
+ (void)size;
+ (void)ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("ServerKeyExchange", &ssl->timeoutInfo);
+ #endif
+
+ #ifndef NO_PSK
+ if (ssl->specs.kea == psk_kea) {
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &length);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ XMEMCPY(ssl->arrays->server_hint, input + *inOutIdx,
+ min(length, MAX_PSK_ID_LEN));
+
+ ssl->arrays->server_hint[min(length, MAX_PSK_ID_LEN - 1)] = 0;
+ *inOutIdx += length;
+
+ return 0;
+ }
+ #endif
+ #ifdef OPENSSL_EXTRA
+ if (ssl->specs.kea == diffie_hellman_kea)
+ {
+ /* p */
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &length);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ ssl->buffers.serverDH_P.buffer = (byte*) XMALLOC(length, ssl->heap,
+ DYNAMIC_TYPE_DH);
+
+ if (ssl->buffers.serverDH_P.buffer)
+ ssl->buffers.serverDH_P.length = length;
+ else
+ return MEMORY_ERROR;
+
+ XMEMCPY(ssl->buffers.serverDH_P.buffer, input + *inOutIdx, length);
+ *inOutIdx += length;
+
+ /* g */
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &length);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ ssl->buffers.serverDH_G.buffer = (byte*) XMALLOC(length, ssl->heap,
+ DYNAMIC_TYPE_DH);
+
+ if (ssl->buffers.serverDH_G.buffer)
+ ssl->buffers.serverDH_G.length = length;
+ else
+ return MEMORY_ERROR;
+
+ XMEMCPY(ssl->buffers.serverDH_G.buffer, input + *inOutIdx, length);
+ *inOutIdx += length;
+
+ /* pub */
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &length);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ ssl->buffers.serverDH_Pub.buffer = (byte*) XMALLOC(length, ssl->heap,
+ DYNAMIC_TYPE_DH);
+
+ if (ssl->buffers.serverDH_Pub.buffer)
+ ssl->buffers.serverDH_Pub.length = length;
+ else
+ return MEMORY_ERROR;
+
+ XMEMCPY(ssl->buffers.serverDH_Pub.buffer, input + *inOutIdx, length);
+ *inOutIdx += length;
+ } /* dh_kea */
+ #endif /* OPENSSL_EXTRA */
+
+ #ifdef HAVE_ECC
+ if (ssl->specs.kea == ecc_diffie_hellman_kea)
+ {
+ byte b;
+
+ if ((*inOutIdx - begin) + ENUM_LEN + OPAQUE16_LEN + OPAQUE8_LEN > size)
+ return BUFFER_ERROR;
+
+ b = input[(*inOutIdx)++];
+
+ if (b != named_curve)
+ return ECC_CURVETYPE_ERROR;
+
+ *inOutIdx += 1; /* curve type, eat leading 0 */
+ b = input[(*inOutIdx)++];
+
+ if (b != secp256r1 && b != secp384r1 && b != secp521r1 && b !=
+ secp160r1 && b != secp192r1 && b != secp224r1)
+ return ECC_CURVE_ERROR;
+
+ length = input[(*inOutIdx)++];
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ if (ecc_import_x963(input + *inOutIdx, length, ssl->peerEccKey) != 0)
+ return ECC_PEERKEY_ERROR;
+
+ *inOutIdx += length;
+ ssl->peerEccKeyPresent = 1;
+ }
+ #endif /* HAVE_ECC */
+
+ #if defined(OPENSSL_EXTRA) || defined(HAVE_ECC)
+ {
+#ifndef NO_OLD_TLS
+ Md5 md5;
+ Sha sha;
+#endif
+#ifndef NO_SHA256
+ Sha256 sha256;
+ byte hash256[SHA256_DIGEST_SIZE];
+#endif
+#ifdef CYASSL_SHA384
+ Sha384 sha384;
+ byte hash384[SHA384_DIGEST_SIZE];
+#endif
+ byte hash[FINISHED_SZ];
+ byte messageVerify[MAX_DH_SZ];
+ byte hashAlgo = sha_mac;
+ byte sigAlgo = ssl->specs.sig_algo;
+ word16 verifySz = (word16) (*inOutIdx - begin);
+
+ /* save message for hash verify */
+ if (verifySz > sizeof(messageVerify))
+ return BUFFER_ERROR;
+
+ XMEMCPY(messageVerify, input + begin, verifySz);
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if ((*inOutIdx - begin) + ENUM_LEN + ENUM_LEN > size)
+ return BUFFER_ERROR;
+
+ hashAlgo = input[(*inOutIdx)++];
+ sigAlgo = input[(*inOutIdx)++];
+ }
+
+ /* signature */
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &length);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ /* inOutIdx updated at the end of the function */
+
+ /* verify signature */
+#ifndef NO_OLD_TLS
+ /* md5 */
+ InitMd5(&md5);
+ Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
+ Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
+ Md5Update(&md5, messageVerify, verifySz);
+ Md5Final(&md5, hash);
+
+ /* sha */
+ ret = InitSha(&sha);
+ if (ret != 0)
+ return ret;
+ ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
+ ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
+ ShaUpdate(&sha, messageVerify, verifySz);
+ ShaFinal(&sha, hash + MD5_DIGEST_SIZE);
+#endif
+
+#ifndef NO_SHA256
+ ret = InitSha256(&sha256);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, messageVerify, verifySz);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Final(&sha256, hash256);
+ if (ret != 0)
+ return ret;
+#endif
+
+#ifdef CYASSL_SHA384
+ ret = InitSha384(&sha384);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, messageVerify, verifySz);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Final(&sha384, hash384);
+ if (ret != 0)
+ return ret;
+#endif
+
+#ifndef NO_RSA
+ /* rsa */
+ if (sigAlgo == rsa_sa_algo)
+ {
+ byte* out = NULL;
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaVerifyCb)
+ doUserRsa = 1;
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (!ssl->peerRsaKeyPresent)
+ return NO_PEER_KEY;
+
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ ret = ssl->ctx->RsaVerifyCb(ssl, (byte *) input + *inOutIdx,
+ length, &out,
+ ssl->buffers.peerRsaKey.buffer,
+ ssl->buffers.peerRsaKey.length,
+ ssl->RsaVerifyCtx);
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = RsaSSL_VerifyInline((byte *) input + *inOutIdx, length,
+ &out, ssl->peerRsaKey);
+ }
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ byte encodedSig[MAX_ENCODED_SIG_SZ];
+ word32 encSigSz;
+#ifndef NO_OLD_TLS
+ byte* digest = &hash[MD5_DIGEST_SIZE];
+ int typeH = SHAh;
+ int digestSz = SHA_DIGEST_SIZE;
+#else
+ byte* digest = hash256;
+ int typeH = SHA256h;
+ int digestSz = SHA256_DIGEST_SIZE;
+#endif
+
+ if (hashAlgo == sha_mac) {
+ #ifndef NO_SHA
+ digest = &hash[MD5_DIGEST_SIZE];
+ typeH = SHAh;
+ digestSz = SHA_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = hash256;
+ typeH = SHA256h;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = hash384;
+ typeH = SHA384h;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+
+ encSigSz = EncodeSignature(encodedSig, digest, digestSz, typeH);
+
+ if (encSigSz != (word32)ret || !out || XMEMCMP(out, encodedSig,
+ min(encSigSz, MAX_ENCODED_SIG_SZ)) != 0)
+ return VERIFY_SIGN_ERROR;
+ }
+ else {
+ if (ret != sizeof(hash) || !out || XMEMCMP(out,
+ hash, sizeof(hash)) != 0)
+ return VERIFY_SIGN_ERROR;
+ }
+ } else
+#endif
+#ifdef HAVE_ECC
+ /* ecdsa */
+ if (sigAlgo == ecc_dsa_sa_algo) {
+ int verify = 0;
+#ifndef NO_OLD_TLS
+ byte* digest = &hash[MD5_DIGEST_SIZE];
+ word32 digestSz = SHA_DIGEST_SIZE;
+#else
+ byte* digest = hash256;
+ word32 digestSz = SHA256_DIGEST_SIZE;
+#endif
+ byte doUserEcc = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->EccVerifyCb)
+ doUserEcc = 1;
+ #endif
+
+ if (!ssl->peerEccDsaKeyPresent)
+ return NO_PEER_KEY;
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if (hashAlgo == sha_mac) {
+ #ifndef NO_SHA
+ digest = &hash[MD5_DIGEST_SIZE];
+ digestSz = SHA_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = hash256;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = hash384;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+ }
+ if (doUserEcc) {
+ #ifdef HAVE_PK_CALLBACKS
+ ret = ssl->ctx->EccVerifyCb(ssl, input + *inOutIdx, length,
+ digest, digestSz,
+ ssl->buffers.peerEccDsaKey.buffer,
+ ssl->buffers.peerEccDsaKey.length,
+ &verify, ssl->EccVerifyCtx);
+ #endif
+ }
+ else {
+ ret = ecc_verify_hash(input + *inOutIdx, length,
+ digest, digestSz, &verify, ssl->peerEccDsaKey);
+ }
+ if (ret != 0 || verify == 0)
+ return VERIFY_SIGN_ERROR;
+ }
+ else
+#endif /* HAVE_ECC */
+ return ALGO_ID_E;
+
+ /* signature length */
+ *inOutIdx += length;
+
+ ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
+
+ return 0;
+ }
+#else /* HAVE_OPENSSL or HAVE_ECC */
+ return NOT_COMPILED_IN; /* not supported by build */
+#endif /* HAVE_OPENSSL or HAVE_ECC */
+ }
+
+
+ int SendClientKeyExchange(CYASSL* ssl)
+ {
+ byte encSecret[MAX_ENCRYPT_SZ];
+ word32 encSz = 0;
+ word32 idx = 0;
+ int ret = 0;
+ byte doUserRsa = 0;
+
+ (void)doUserRsa;
+
+ #ifdef HAVE_PK_CALLBACKS
+ #ifndef NO_RSA
+ if (ssl->ctx->RsaEncCb)
+ doUserRsa = 1;
+ #endif /* NO_RSA */
+ #endif /*HAVE_PK_CALLBACKS */
+
+ switch (ssl->specs.kea) {
+ #ifndef NO_RSA
+ case rsa_kea:
+ ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->preMasterSecret,
+ SECRET_LEN);
+ if (ret != 0)
+ return ret;
+
+ ssl->arrays->preMasterSecret[0] = ssl->chVersion.major;
+ ssl->arrays->preMasterSecret[1] = ssl->chVersion.minor;
+ ssl->arrays->preMasterSz = SECRET_LEN;
+
+ if (ssl->peerRsaKeyPresent == 0)
+ return NO_PEER_KEY;
+
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ #ifndef NO_RSA
+ encSz = sizeof(encSecret);
+ ret = ssl->ctx->RsaEncCb(ssl,
+ ssl->arrays->preMasterSecret,
+ SECRET_LEN,
+ encSecret, &encSz,
+ ssl->buffers.peerRsaKey.buffer,
+ ssl->buffers.peerRsaKey.length,
+ ssl->RsaEncCtx);
+ #endif /* NO_RSA */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = RsaPublicEncrypt(ssl->arrays->preMasterSecret,
+ SECRET_LEN, encSecret, sizeof(encSecret),
+ ssl->peerRsaKey, ssl->rng);
+ if (ret > 0) {
+ encSz = ret;
+ ret = 0; /* set success to 0 */
+ }
+ }
+ break;
+ #endif
+ #ifdef OPENSSL_EXTRA
+ case diffie_hellman_kea:
+ {
+ buffer serverP = ssl->buffers.serverDH_P;
+ buffer serverG = ssl->buffers.serverDH_G;
+ buffer serverPub = ssl->buffers.serverDH_Pub;
+ byte priv[ENCRYPT_LEN];
+ word32 privSz = 0;
+ DhKey key;
+
+ if (serverP.buffer == 0 || serverG.buffer == 0 ||
+ serverPub.buffer == 0)
+ return NO_PEER_KEY;
+
+ InitDhKey(&key);
+ ret = DhSetKey(&key, serverP.buffer, serverP.length,
+ serverG.buffer, serverG.length);
+ if (ret == 0)
+ /* for DH, encSecret is Yc, agree is pre-master */
+ ret = DhGenerateKeyPair(&key, ssl->rng, priv, &privSz,
+ encSecret, &encSz);
+ if (ret == 0)
+ ret = DhAgree(&key, ssl->arrays->preMasterSecret,
+ &ssl->arrays->preMasterSz, priv, privSz,
+ serverPub.buffer, serverPub.length);
+ FreeDhKey(&key);
+ }
+ break;
+ #endif /* OPENSSL_EXTRA */
+ #ifndef NO_PSK
+ case psk_kea:
+ {
+ byte* pms = ssl->arrays->preMasterSecret;
+
+ ssl->arrays->psk_keySz = ssl->options.client_psk_cb(ssl,
+ ssl->arrays->server_hint, ssl->arrays->client_identity,
+ MAX_PSK_ID_LEN, ssl->arrays->psk_key, MAX_PSK_KEY_LEN);
+ if (ssl->arrays->psk_keySz == 0 ||
+ ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN)
+ return PSK_KEY_ERROR;
+ encSz = (word32)XSTRLEN(ssl->arrays->client_identity);
+ if (encSz > MAX_PSK_ID_LEN) return CLIENT_ID_ERROR;
+ XMEMCPY(encSecret, ssl->arrays->client_identity, encSz);
+
+ /* make psk pre master secret */
+ /* length of key + length 0s + length of key + key */
+ c16toa((word16)ssl->arrays->psk_keySz, pms);
+ pms += 2;
+ XMEMSET(pms, 0, ssl->arrays->psk_keySz);
+ pms += ssl->arrays->psk_keySz;
+ c16toa((word16)ssl->arrays->psk_keySz, pms);
+ pms += 2;
+ XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz);
+ ssl->arrays->preMasterSz = ssl->arrays->psk_keySz * 2 + 4;
+ XMEMSET(ssl->arrays->psk_key, 0, ssl->arrays->psk_keySz);
+ ssl->arrays->psk_keySz = 0; /* No further need */
+ }
+ break;
+ #endif /* NO_PSK */
+ #ifdef HAVE_NTRU
+ case ntru_kea:
+ {
+ word32 rc;
+ word16 cipherLen = sizeof(encSecret);
+ DRBG_HANDLE drbg;
+ static uint8_t const cyasslStr[] = {
+ 'C', 'y', 'a', 'S', 'S', 'L', ' ', 'N', 'T', 'R', 'U'
+ };
+
+ ret = RNG_GenerateBlock(ssl->rng,
+ ssl->arrays->preMasterSecret, SECRET_LEN);
+ if (ret != 0)
+ return ret;
+
+ ssl->arrays->preMasterSz = SECRET_LEN;
+
+ if (ssl->peerNtruKeyPresent == 0)
+ return NO_PEER_KEY;
+
+ rc = crypto_drbg_instantiate(MAX_NTRU_BITS, cyasslStr,
+ sizeof(cyasslStr), GetEntropy,
+ &drbg);
+ if (rc != DRBG_OK)
+ return NTRU_DRBG_ERROR;
+
+ rc = crypto_ntru_encrypt(drbg, ssl->peerNtruKeyLen,
+ ssl->peerNtruKey,
+ ssl->arrays->preMasterSz,
+ ssl->arrays->preMasterSecret,
+ &cipherLen, encSecret);
+ crypto_drbg_uninstantiate(drbg);
+ if (rc != NTRU_OK)
+ return NTRU_ENCRYPT_ERROR;
+
+ encSz = cipherLen;
+ ret = 0;
+ }
+ break;
+ #endif /* HAVE_NTRU */
+ #ifdef HAVE_ECC
+ case ecc_diffie_hellman_kea:
+ {
+ ecc_key myKey;
+ ecc_key* peerKey = NULL;
+ word32 size = sizeof(encSecret);
+
+ if (ssl->specs.static_ecdh) {
+ /* TODO: EccDsa is really fixed Ecc change naming */
+ if (!ssl->peerEccDsaKeyPresent || !ssl->peerEccDsaKey->dp)
+ return NO_PEER_KEY;
+ peerKey = ssl->peerEccDsaKey;
+ }
+ else {
+ if (!ssl->peerEccKeyPresent || !ssl->peerEccKey->dp)
+ return NO_PEER_KEY;
+ peerKey = ssl->peerEccKey;
+ }
+
+ if (peerKey == NULL)
+ return NO_PEER_KEY;
+
+ ecc_init(&myKey);
+ ret = ecc_make_key(ssl->rng, peerKey->dp->size, &myKey);
+ if (ret != 0)
+ return ECC_MAKEKEY_ERROR;
+
+ /* precede export with 1 byte length */
+ ret = ecc_export_x963(&myKey, encSecret + 1, &size);
+ encSecret[0] = (byte)size;
+ encSz = size + 1;
+
+ if (ret != 0)
+ ret = ECC_EXPORT_ERROR;
+ else {
+ size = sizeof(ssl->arrays->preMasterSecret);
+ ret = ecc_shared_secret(&myKey, peerKey,
+ ssl->arrays->preMasterSecret, &size);
+ if (ret != 0)
+ ret = ECC_SHARED_ERROR;
+ }
+
+ ssl->arrays->preMasterSz = size;
+ ecc_free(&myKey);
+ }
+ break;
+ #endif /* HAVE_ECC */
+ default:
+ return ALGO_ID_E; /* unsupported kea */
+ }
+
+ if (ret == 0) {
+ byte *output;
+ int sendSz;
+ word32 tlsSz = 0;
+
+ if (ssl->options.tls || ssl->specs.kea == diffie_hellman_kea)
+ tlsSz = 2;
+
+ if (ssl->specs.kea == ecc_diffie_hellman_kea) /* always off */
+ tlsSz = 0;
+
+ sendSz = encSz + tlsSz + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+ idx = HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
+ idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA;
+ }
+ #endif
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, encSz + tlsSz, client_key_exchange, ssl);
+
+ if (tlsSz) {
+ c16toa((word16)encSz, &output[idx]);
+ idx += 2;
+ }
+ XMEMCPY(output + idx, encSecret, encSz);
+ /* if add more to output, adjust idx
+ idx += encSz; */
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ClientKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ClientKeyExchange", &ssl->timeoutInfo,
+ output, sendSz, ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ if (ssl->options.groupMessages)
+ ret = 0;
+ else
+ ret = SendBuffered(ssl);
+ }
+
+ if (ret == 0 || ret == WANT_WRITE) {
+ int tmpRet = MakeMasterSecret(ssl);
+ if (tmpRet != 0)
+ ret = tmpRet; /* save WANT_WRITE unless more serious */
+ ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
+ }
+ /* No further need for PMS */
+ XMEMSET(ssl->arrays->preMasterSecret, 0, ssl->arrays->preMasterSz);
+ ssl->arrays->preMasterSz = 0;
+
+ return ret;
+ }
+
+#ifndef NO_CERTS
+ int SendCertificateVerify(CYASSL* ssl)
+ {
+ byte *output;
+ int sendSz = 0, length, ret;
+ word32 idx = 0;
+ word32 sigOutSz = 0;
+#ifndef NO_RSA
+ RsaKey key;
+ int initRsaKey = 0;
+#endif
+ int usingEcc = 0;
+#ifdef HAVE_ECC
+ ecc_key eccKey;
+#endif
+
+ (void)idx;
+
+ if (ssl->options.sendVerify == SEND_BLANK_CERT)
+ return 0; /* sent blank cert, can't verify */
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, MAX_CERT_VERIFY_SZ)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ ret = BuildCertHashes(ssl, &ssl->certHashes);
+ if (ret != 0)
+ return ret;
+
+#ifdef HAVE_ECC
+ ecc_init(&eccKey);
+#endif
+#ifndef NO_RSA
+ ret = InitRsaKey(&key, ssl->heap);
+ if (ret == 0) initRsaKey = 1;
+ if (ret == 0)
+ ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &idx, &key,
+ ssl->buffers.key.length);
+ if (ret == 0)
+ sigOutSz = RsaEncryptSize(&key);
+ else
+#endif
+ {
+ #ifdef HAVE_ECC
+ CYASSL_MSG("Trying ECC client cert, RSA didn't work");
+
+ idx = 0;
+ ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &idx, &eccKey,
+ ssl->buffers.key.length);
+ if (ret == 0) {
+ CYASSL_MSG("Using ECC client cert");
+ usingEcc = 1;
+ sigOutSz = MAX_ENCODED_SIG_SZ;
+ }
+ else {
+ CYASSL_MSG("Bad client cert type");
+ }
+ #endif
+ }
+ if (ret == 0) {
+ byte* verify = (byte*)&output[RECORD_HEADER_SZ +
+ HANDSHAKE_HEADER_SZ];
+#ifndef NO_OLD_TLS
+ byte* signBuffer = ssl->certHashes.md5;
+#else
+ byte* signBuffer = NULL;
+#endif
+ word32 signSz = FINISHED_SZ;
+ byte encodedSig[MAX_ENCODED_SIG_SZ];
+ word32 extraSz = 0; /* tls 1.2 hash/sig */
+
+ (void)encodedSig;
+ (void)signSz;
+ (void)signBuffer;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ verify += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ #endif
+ length = sigOutSz;
+ if (IsAtLeastTLSv1_2(ssl)) {
+ verify[0] = ssl->suites->hashAlgo;
+ verify[1] = usingEcc ? ecc_dsa_sa_algo : rsa_sa_algo;
+ extraSz = HASH_SIG_SIZE;
+ }
+
+ if (usingEcc) {
+#ifdef HAVE_ECC
+ word32 localSz = MAX_ENCODED_SIG_SZ;
+ word32 digestSz;
+ byte* digest;
+ byte doUserEcc = 0;
+#ifndef NO_OLD_TLS
+ /* old tls default */
+ digestSz = SHA_DIGEST_SIZE;
+ digest = ssl->certHashes.sha;
+#else
+ /* new tls default */
+ digestSz = SHA256_DIGEST_SIZE;
+ digest = ssl->certHashes.sha256;
+#endif
+
+ #ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ if (ssl->ctx->EccSignCb)
+ doUserEcc = 1;
+ #endif /* HAVE_ECC */
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if (ssl->suites->hashAlgo == sha_mac) {
+ #ifndef NO_SHA
+ digest = ssl->certHashes.sha;
+ digestSz = SHA_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = ssl->certHashes.sha256;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = ssl->certHashes.sha384;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+ }
+
+ if (doUserEcc) {
+ #ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ret = ssl->ctx->EccSignCb(ssl, digest, digestSz,
+ encodedSig, &localSz,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->EccSignCtx);
+ #endif /* HAVE_ECC */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = ecc_sign_hash(digest, digestSz, encodedSig,
+ &localSz, ssl->rng, &eccKey);
+ }
+ if (ret == 0) {
+ length = localSz;
+ c16toa((word16)length, verify + extraSz); /* prepend hdr */
+ XMEMCPY(verify + extraSz + VERIFY_HEADER,encodedSig,length);
+ }
+#endif
+ }
+#ifndef NO_RSA
+ else {
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaSignCb)
+ doUserRsa = 1;
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+#ifndef NO_OLD_TLS
+ byte* digest = ssl->certHashes.sha;
+ int digestSz = SHA_DIGEST_SIZE;
+ int typeH = SHAh;
+#else
+ byte* digest = ssl->certHashes.sha256;
+ int digestSz = SHA256_DIGEST_SIZE;
+ int typeH = SHA256h;
+#endif
+
+ if (ssl->suites->hashAlgo == sha_mac) {
+ #ifndef NO_SHA
+ digest = ssl->certHashes.sha;
+ typeH = SHAh;
+ digestSz = SHA_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = ssl->certHashes.sha256;
+ typeH = SHA256h;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = ssl->certHashes.sha384;
+ typeH = SHA384h;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+
+ signSz = EncodeSignature(encodedSig, digest,digestSz,typeH);
+ signBuffer = encodedSig;
+ }
+
+ c16toa((word16)length, verify + extraSz); /* prepend hdr */
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ #ifndef NO_RSA
+ word32 ioLen = ENCRYPT_LEN;
+ ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
+ verify + extraSz + VERIFY_HEADER,
+ &ioLen,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->RsaSignCtx);
+ #endif /* NO_RSA */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = RsaSSL_Sign(signBuffer, signSz, verify + extraSz +
+ VERIFY_HEADER, ENCRYPT_LEN, &key, ssl->rng);
+ }
+
+ if (ret > 0)
+ ret = 0; /* RSA reset */
+ }
+#endif
+ if (ret == 0) {
+ AddHeaders(output, length + extraSz + VERIFY_HEADER,
+ certificate_verify, ssl);
+
+ sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + length +
+ extraSz + VERIFY_HEADER;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ }
+ }
+#ifndef NO_RSA
+ if (initRsaKey)
+ FreeRsaKey(&key);
+#endif
+#ifdef HAVE_ECC
+ ecc_free(&eccKey);
+#endif
+
+ if (ret == 0) {
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("CertificateVerify", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("CertificateVerify", &ssl->timeoutInfo,
+ output, sendSz, ssl->heap);
+ #endif
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ return 0;
+ else
+ return SendBuffered(ssl);
+ }
+ else
+ return ret;
+ }
+#endif /* NO_CERTS */
+
+
+#endif /* NO_CYASSL_CLIENT */
+
+
+#ifndef NO_CYASSL_SERVER
+
+ int SendServerHello(CYASSL* ssl)
+ {
+ byte *output;
+ word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int sendSz;
+ int ret;
+
+ length = VERSION_SZ + RAN_LEN
+ + ID_LEN + ENUM_LEN
+ + SUITE_LEN
+ + ENUM_LEN;
+
+#ifdef HAVE_TLS_EXTENSIONS
+ length += TLSX_GetResponseSize(ssl);
+#endif
+
+ /* check for avalaible size */
+ if ((ret = CheckAvailableSize(ssl, MAX_HELLO_SZ)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+ AddHeaders(output, length, server_hello, ssl);
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ }
+ #endif
+ /* now write to output */
+ /* first version */
+ output[idx++] = ssl->version.major;
+ output[idx++] = ssl->version.minor;
+
+ /* then random */
+ if (!ssl->options.resuming) {
+ ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
+ RAN_LEN);
+ if (ret != 0)
+ return ret;
+ }
+
+ XMEMCPY(output + idx, ssl->arrays->serverRandom, RAN_LEN);
+ idx += RAN_LEN;
+
+#ifdef SHOW_SECRETS
+ {
+ int j;
+ printf("server random: ");
+ for (j = 0; j < RAN_LEN; j++)
+ printf("%02x", ssl->arrays->serverRandom[j]);
+ printf("\n");
+ }
+#endif
+ /* then session id */
+ output[idx++] = ID_LEN;
+
+ if (!ssl->options.resuming) {
+ ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->sessionID, ID_LEN);
+ if (ret != 0)
+ return ret;
+ }
+
+ XMEMCPY(output + idx, ssl->arrays->sessionID, ID_LEN);
+ idx += ID_LEN;
+
+ /* then cipher suite */
+ output[idx++] = ssl->options.cipherSuite0;
+ output[idx++] = ssl->options.cipherSuite;
+
+ /* then compression */
+ if (ssl->options.usingCompression)
+ output[idx++] = ZLIB_COMPRESSION;
+ else
+ output[idx++] = NO_COMPRESSION;
+
+ /* last, extensions */
+#ifdef HAVE_TLS_EXTENSIONS
+ if (IsTLS(ssl))
+ TLSX_WriteResponse(ssl, output + idx);
+#endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerHello", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ServerHello", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+ #endif
+
+ ssl->options.serverState = SERVER_HELLO_COMPLETE;
+
+ if (ssl->options.groupMessages)
+ return 0;
+ else
+ return SendBuffered(ssl);
+ }
+
+
+#ifdef HAVE_ECC
+
+ static byte SetCurveId(int size)
+ {
+ switch(size) {
+ case 20:
+ return secp160r1;
+ case 24:
+ return secp192r1;
+ case 28:
+ return secp224r1;
+ case 32:
+ return secp256r1;
+ case 48:
+ return secp384r1;
+ case 66:
+ return secp521r1;
+ default:
+ return 0;
+ }
+ }
+
+#endif /* HAVE_ECC */
+
+
+ int SendServerKeyExchange(CYASSL* ssl)
+ {
+ int ret = 0;
+ (void)ssl;
+
+ #ifndef NO_PSK
+ if (ssl->specs.kea == psk_kea)
+ {
+ byte *output;
+ word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int sendSz;
+ if (ssl->arrays->server_hint[0] == 0) return 0; /* don't send */
+
+ /* include size part */
+ length = (word32)XSTRLEN(ssl->arrays->server_hint);
+ if (length > MAX_PSK_ID_LEN) return SERVER_HINT_ERROR;
+ length += HINT_LEN_SZ;
+ sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ }
+ #endif
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, length, server_key_exchange, ssl);
+
+ /* key data */
+ c16toa((word16)(length - HINT_LEN_SZ), output + idx);
+ idx += HINT_LEN_SZ;
+ XMEMCPY(output + idx, ssl->arrays->server_hint,length -HINT_LEN_SZ);
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
+ output, sendSz, ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ ret = 0;
+ else
+ ret = SendBuffered(ssl);
+ ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
+ }
+ #endif /*NO_PSK */
+
+ #ifdef HAVE_ECC
+ if (ssl->specs.kea == ecc_diffie_hellman_kea)
+ {
+ byte *output;
+ word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int sendSz;
+ byte exportBuf[MAX_EXPORT_ECC_SZ];
+ word32 expSz = sizeof(exportBuf);
+ word32 sigSz;
+ word32 preSigSz, preSigIdx;
+#ifndef NO_RSA
+ RsaKey rsaKey;
+#endif
+ ecc_key dsaKey;
+
+ if (ssl->specs.static_ecdh) {
+ CYASSL_MSG("Using Static ECDH, not sending ServerKeyExchagne");
+ return 0;
+ }
+
+ /* curve type, named curve, length(1) */
+ length = ENUM_LEN + CURVE_LEN + ENUM_LEN;
+ /* pub key size */
+ CYASSL_MSG("Using ephemeral ECDH");
+ if (ecc_export_x963(ssl->eccTempKey, exportBuf, &expSz) != 0)
+ return ECC_EXPORT_ERROR;
+ length += expSz;
+
+ preSigSz = length;
+ preSigIdx = idx;
+
+#ifndef NO_RSA
+ ret = InitRsaKey(&rsaKey, ssl->heap);
+ if (ret != 0) return ret;
+#endif
+ ecc_init(&dsaKey);
+
+ /* sig length */
+ length += LENGTH_SZ;
+
+ if (!ssl->buffers.key.buffer) {
+#ifndef NO_RSA
+ FreeRsaKey(&rsaKey);
+#endif
+ ecc_free(&dsaKey);
+ return NO_PRIVATE_KEY;
+ }
+
+#ifndef NO_RSA
+ if (ssl->specs.sig_algo == rsa_sa_algo) {
+ /* rsa sig size */
+ word32 i = 0;
+ ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &i,
+ &rsaKey, ssl->buffers.key.length);
+ if (ret != 0) return ret;
+ sigSz = RsaEncryptSize(&rsaKey);
+ } else
+#endif
+ if (ssl->specs.sig_algo == ecc_dsa_sa_algo) {
+ /* ecdsa sig size */
+ word32 i = 0;
+ ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &i,
+ &dsaKey, ssl->buffers.key.length);
+ if (ret != 0) return ret;
+ sigSz = ecc_sig_size(&dsaKey); /* worst case estimate */
+ }
+ else {
+#ifndef NO_RSA
+ FreeRsaKey(&rsaKey);
+#endif
+ ecc_free(&dsaKey);
+ return ALGO_ID_E; /* unsupported type */
+ }
+ length += sigSz;
+
+ if (IsAtLeastTLSv1_2(ssl))
+ length += HASH_SIG_SIZE;
+
+ sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ preSigIdx = idx;
+ }
+ #endif
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) {
+#ifndef NO_RSA
+ FreeRsaKey(&rsaKey);
+#endif
+ ecc_free(&dsaKey);
+ return ret;
+ }
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ /* record and message headers will be added below, when we're sure
+ of the sig length */
+
+ /* key exchange data */
+ output[idx++] = named_curve;
+ output[idx++] = 0x00; /* leading zero */
+ output[idx++] = SetCurveId(ecc_size(ssl->eccTempKey));
+ output[idx++] = (byte)expSz;
+ XMEMCPY(output + idx, exportBuf, expSz);
+ idx += expSz;
+ if (IsAtLeastTLSv1_2(ssl)) {
+ output[idx++] = ssl->suites->hashAlgo;
+ output[idx++] = ssl->suites->sigAlgo;
+ }
+
+ /* Signtaure length will be written later, when we're sure what it
+ is */
+
+ /* do signature */
+ {
+#ifndef NO_OLD_TLS
+ Md5 md5;
+ Sha sha;
+#endif
+ byte hash[FINISHED_SZ];
+ #ifndef NO_SHA256
+ Sha256 sha256;
+ byte hash256[SHA256_DIGEST_SIZE];
+ #endif
+ #ifdef CYASSL_SHA384
+ Sha384 sha384;
+ byte hash384[SHA384_DIGEST_SIZE];
+ #endif
+
+#ifndef NO_OLD_TLS
+ /* md5 */
+ InitMd5(&md5);
+ Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
+ Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
+ Md5Update(&md5, output + preSigIdx, preSigSz);
+ Md5Final(&md5, hash);
+
+ /* sha */
+ ret = InitSha(&sha);
+ if (ret != 0)
+ return ret;
+ ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
+ ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
+ ShaUpdate(&sha, output + preSigIdx, preSigSz);
+ ShaFinal(&sha, &hash[MD5_DIGEST_SIZE]);
+#endif
+
+ #ifndef NO_SHA256
+ ret = InitSha256(&sha256);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, output + preSigIdx, preSigSz);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Final(&sha256, hash256);
+ if (ret != 0)
+ return ret;
+ #endif
+
+ #ifdef CYASSL_SHA384
+ ret = InitSha384(&sha384);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, output + preSigIdx, preSigSz);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Final(&sha384, hash384);
+ if (ret != 0)
+ return ret;
+ #endif
+#ifndef NO_RSA
+ if (ssl->suites->sigAlgo == rsa_sa_algo) {
+ byte* signBuffer = hash;
+ word32 signSz = sizeof(hash);
+ byte encodedSig[MAX_ENCODED_SIG_SZ];
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaSignCb)
+ doUserRsa = 1;
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ byte* digest = &hash[MD5_DIGEST_SIZE];
+ int typeH = SHAh;
+ int digestSz = SHA_DIGEST_SIZE;
+
+ if (ssl->suites->hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = hash256;
+ typeH = SHA256h;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = hash384;
+ typeH = SHA384h;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+
+ signSz = EncodeSignature(encodedSig, digest, digestSz,
+ typeH);
+ signBuffer = encodedSig;
+ }
+ /* write sig size here */
+ c16toa((word16)sigSz, output + idx);
+ idx += LENGTH_SZ;
+
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ word32 ioLen = sigSz;
+ ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
+ output + idx,
+ &ioLen,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->RsaSignCtx);
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = RsaSSL_Sign(signBuffer, signSz, output + idx,
+ sigSz, &rsaKey, ssl->rng);
+ if (ret > 0)
+ ret = 0; /* reset on success */
+ }
+ FreeRsaKey(&rsaKey);
+ ecc_free(&dsaKey);
+ if (ret < 0)
+ return ret;
+ } else
+#endif
+ if (ssl->suites->sigAlgo == ecc_dsa_sa_algo) {
+#ifndef NO_OLD_TLS
+ byte* digest = &hash[MD5_DIGEST_SIZE];
+ word32 digestSz = SHA_DIGEST_SIZE;
+#else
+ byte* digest = hash256;
+ word32 digestSz = SHA256_DIGEST_SIZE;
+#endif
+ word32 sz = sigSz;
+ byte doUserEcc = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ if (ssl->ctx->EccSignCb)
+ doUserEcc = 1;
+ #endif /* HAVE_ECC */
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if (ssl->suites->hashAlgo == sha_mac) {
+ #ifndef NO_SHA
+ digest = &hash[MD5_DIGEST_SIZE];
+ digestSz = SHA_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = hash256;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = hash384;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+ }
+
+ if (doUserEcc) {
+ #ifdef HAVE_PK_CALLBACKS
+ #ifdef HAVE_ECC
+ ret = ssl->ctx->EccSignCb(ssl, digest, digestSz,
+ output + LENGTH_SZ + idx, &sz,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->EccSignCtx);
+ #endif /* HAVE_ECC */
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = ecc_sign_hash(digest, digestSz,
+ output + LENGTH_SZ + idx, &sz, ssl->rng, &dsaKey);
+ }
+#ifndef NO_RSA
+ FreeRsaKey(&rsaKey);
+#endif
+ ecc_free(&dsaKey);
+ if (ret < 0) return ret;
+
+ /* Now that we know the real sig size, write it. */
+ c16toa((word16)sz, output + idx);
+
+ /* And adjust length and sendSz from estimates */
+ length += sz - sigSz;
+ sendSz += sz - sigSz;
+ }
+ }
+
+ AddHeaders(output, length, server_key_exchange, ssl);
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
+ output, sendSz, ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ ret = 0;
+ else
+ ret = SendBuffered(ssl);
+ ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
+ }
+ #endif /* HAVE_ECC */
+
+ #ifdef OPENSSL_EXTRA
+ if (ssl->specs.kea == diffie_hellman_kea) {
+ byte *output;
+ word32 length = 0, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int sendSz;
+ word32 sigSz = 0, i = 0;
+ word32 preSigSz = 0, preSigIdx = 0;
+ RsaKey rsaKey;
+ DhKey dhKey;
+
+ if (ssl->buffers.serverDH_P.buffer == NULL ||
+ ssl->buffers.serverDH_G.buffer == NULL)
+ return NO_DH_PARAMS;
+
+ if (ssl->buffers.serverDH_Pub.buffer == NULL) {
+ ssl->buffers.serverDH_Pub.buffer = (byte*)XMALLOC(
+ ssl->buffers.serverDH_P.length + 2, ssl->ctx->heap,
+ DYNAMIC_TYPE_DH);
+ if (ssl->buffers.serverDH_Pub.buffer == NULL)
+ return MEMORY_E;
+ }
+
+ if (ssl->buffers.serverDH_Priv.buffer == NULL) {
+ ssl->buffers.serverDH_Priv.buffer = (byte*)XMALLOC(
+ ssl->buffers.serverDH_P.length + 2, ssl->ctx->heap,
+ DYNAMIC_TYPE_DH);
+ if (ssl->buffers.serverDH_Priv.buffer == NULL)
+ return MEMORY_E;
+ }
+
+ InitDhKey(&dhKey);
+ ret = DhSetKey(&dhKey, ssl->buffers.serverDH_P.buffer,
+ ssl->buffers.serverDH_P.length,
+ ssl->buffers.serverDH_G.buffer,
+ ssl->buffers.serverDH_G.length);
+ if (ret == 0)
+ ret = DhGenerateKeyPair(&dhKey, ssl->rng,
+ ssl->buffers.serverDH_Priv.buffer,
+ &ssl->buffers.serverDH_Priv.length,
+ ssl->buffers.serverDH_Pub.buffer,
+ &ssl->buffers.serverDH_Pub.length);
+ FreeDhKey(&dhKey);
+
+ if (ret == 0) {
+ ret = InitRsaKey(&rsaKey, ssl->heap);
+ if (ret != 0) return ret;
+ }
+ if (ret == 0) {
+ length = LENGTH_SZ * 3; /* p, g, pub */
+ length += ssl->buffers.serverDH_P.length +
+ ssl->buffers.serverDH_G.length +
+ ssl->buffers.serverDH_Pub.length;
+
+ preSigIdx = idx;
+ preSigSz = length;
+
+ /* sig length */
+ length += LENGTH_SZ;
+
+ if (!ssl->buffers.key.buffer)
+ return NO_PRIVATE_KEY;
+
+ ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &i, &rsaKey,
+ ssl->buffers.key.length);
+ if (ret == 0) {
+ sigSz = RsaEncryptSize(&rsaKey);
+ length += sigSz;
+ }
+ }
+ if (ret != 0) {
+ FreeRsaKey(&rsaKey);
+ return ret;
+ }
+
+ if (IsAtLeastTLSv1_2(ssl))
+ length += HASH_SIG_SIZE;
+
+ sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ preSigIdx = idx;
+ }
+ #endif
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) {
+ FreeRsaKey(&rsaKey);
+ return ret;
+ }
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, length, server_key_exchange, ssl);
+
+ /* add p, g, pub */
+ c16toa((word16)ssl->buffers.serverDH_P.length, output + idx);
+ idx += LENGTH_SZ;
+ XMEMCPY(output + idx, ssl->buffers.serverDH_P.buffer,
+ ssl->buffers.serverDH_P.length);
+ idx += ssl->buffers.serverDH_P.length;
+
+ /* g */
+ c16toa((word16)ssl->buffers.serverDH_G.length, output + idx);
+ idx += LENGTH_SZ;
+ XMEMCPY(output + idx, ssl->buffers.serverDH_G.buffer,
+ ssl->buffers.serverDH_G.length);
+ idx += ssl->buffers.serverDH_G.length;
+
+ /* pub */
+ c16toa((word16)ssl->buffers.serverDH_Pub.length, output + idx);
+ idx += LENGTH_SZ;
+ XMEMCPY(output + idx, ssl->buffers.serverDH_Pub.buffer,
+ ssl->buffers.serverDH_Pub.length);
+ idx += ssl->buffers.serverDH_Pub.length;
+
+ /* Add signature */
+ if (IsAtLeastTLSv1_2(ssl)) {
+ output[idx++] = ssl->suites->hashAlgo;
+ output[idx++] = ssl->suites->sigAlgo;
+ }
+ /* size */
+ c16toa((word16)sigSz, output + idx);
+ idx += LENGTH_SZ;
+
+ /* do signature */
+ {
+#ifndef NO_OLD_TLS
+ Md5 md5;
+ Sha sha;
+#endif
+ byte hash[FINISHED_SZ];
+ #ifndef NO_SHA256
+ Sha256 sha256;
+ byte hash256[SHA256_DIGEST_SIZE];
+ #endif
+ #ifdef CYASSL_SHA384
+ Sha384 sha384;
+ byte hash384[SHA384_DIGEST_SIZE];
+ #endif
+
+#ifndef NO_OLD_TLS
+ /* md5 */
+ InitMd5(&md5);
+ Md5Update(&md5, ssl->arrays->clientRandom, RAN_LEN);
+ Md5Update(&md5, ssl->arrays->serverRandom, RAN_LEN);
+ Md5Update(&md5, output + preSigIdx, preSigSz);
+ Md5Final(&md5, hash);
+
+ /* sha */
+ ret = InitSha(&sha);
+ if (ret != 0)
+ return ret;
+ ShaUpdate(&sha, ssl->arrays->clientRandom, RAN_LEN);
+ ShaUpdate(&sha, ssl->arrays->serverRandom, RAN_LEN);
+ ShaUpdate(&sha, output + preSigIdx, preSigSz);
+ ShaFinal(&sha, &hash[MD5_DIGEST_SIZE]);
+#endif
+
+ #ifndef NO_SHA256
+ ret = InitSha256(&sha256);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Update(&sha256, output + preSigIdx, preSigSz);
+ if (ret != 0)
+ return ret;
+ ret = Sha256Final(&sha256, hash256);
+ if (ret != 0)
+ return ret;
+ #endif
+
+ #ifdef CYASSL_SHA384
+ ret = InitSha384(&sha384);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->clientRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, ssl->arrays->serverRandom, RAN_LEN);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Update(&sha384, output + preSigIdx, preSigSz);
+ if (ret != 0)
+ return ret;
+ ret = Sha384Final(&sha384, hash384);
+ if (ret != 0)
+ return ret;
+ #endif
+#ifndef NO_RSA
+ if (ssl->suites->sigAlgo == rsa_sa_algo) {
+ byte* signBuffer = hash;
+ word32 signSz = sizeof(hash);
+ byte encodedSig[MAX_ENCODED_SIG_SZ];
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaSignCb)
+ doUserRsa = 1;
+ #endif /*HAVE_PK_CALLBACKS */
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ byte* digest = &hash[MD5_DIGEST_SIZE];
+ int typeH = SHAh;
+ int digestSz = SHA_DIGEST_SIZE;
+
+ if (ssl->suites->hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = hash256;
+ typeH = SHA256h;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (ssl->suites->hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = hash384;
+ typeH = SHA384h;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+
+ signSz = EncodeSignature(encodedSig, digest, digestSz,
+ typeH);
+ signBuffer = encodedSig;
+ }
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ word32 ioLen = sigSz;
+ ret = ssl->ctx->RsaSignCb(ssl, signBuffer, signSz,
+ output + idx,
+ &ioLen,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->RsaSignCtx);
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ ret = RsaSSL_Sign(signBuffer, signSz, output + idx,
+ sigSz, &rsaKey, ssl->rng);
+ }
+ FreeRsaKey(&rsaKey);
+ if (ret < 0)
+ return ret;
+ }
+#endif
+ }
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return ret;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ServerKeyExchange", &ssl->timeoutInfo,
+ output, sendSz, ssl->heap);
+ #endif
+
+ ssl->buffers.outputBuffer.length += sendSz;
+ if (ssl->options.groupMessages)
+ ret = 0;
+ else
+ ret = SendBuffered(ssl);
+ ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE;
+ }
+ #endif /* OPENSSL_EXTRA */
+
+ return ret;
+ }
+
+
+ /* cipher requirements */
+ enum {
+ REQUIRES_RSA,
+ REQUIRES_DHE,
+ REQUIRES_ECC_DSA,
+ REQUIRES_ECC_STATIC,
+ REQUIRES_PSK,
+ REQUIRES_NTRU,
+ REQUIRES_RSA_SIG
+ };
+
+
+
+ /* Does this cipher suite (first, second) have the requirement
+ an ephemeral key exchange will still require the key for signing
+ the key exchange so ECHDE_RSA requires an rsa key thus rsa_kea */
+ static int CipherRequires(byte first, byte second, int requirement)
+ {
+ /* ECC extensions */
+ if (first == ECC_BYTE) {
+
+ switch (second) {
+
+#ifndef NO_RSA
+ case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+
+#ifndef NO_DES3
+ case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+#endif
+
+#ifndef NO_RC4
+ case TLS_ECDHE_RSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+#endif
+#endif /* NO_RSA */
+
+#ifndef NO_DES3
+ case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+#endif
+#ifndef NO_RC4
+ case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+#endif
+#ifndef NO_RSA
+ case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+#endif
+
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+
+ case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+
+#ifndef NO_RSA
+ case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_128_CCM_8 :
+ case TLS_RSA_WITH_AES_256_CCM_8 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+
+ case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ break;
+
+ case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 :
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+#endif
+
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 :
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 :
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ break;
+
+ case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 :
+ if (requirement == REQUIRES_ECC_DSA)
+ return 1;
+ if (requirement == REQUIRES_ECC_STATIC)
+ return 1;
+ break;
+
+ case TLS_PSK_WITH_AES_128_CCM:
+ case TLS_PSK_WITH_AES_256_CCM:
+ case TLS_PSK_WITH_AES_128_CCM_8:
+ case TLS_PSK_WITH_AES_256_CCM_8:
+ if (requirement == REQUIRES_PSK)
+ return 1;
+ break;
+
+ default:
+ CYASSL_MSG("Unsupported cipher suite, CipherRequires ECC");
+ return 0;
+ } /* switch */
+ } /* if */
+ if (first != ECC_BYTE) { /* normal suites */
+ switch (second) {
+
+#ifndef NO_RSA
+ case SSL_RSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_NTRU_RSA_WITH_RC4_128_SHA :
+ if (requirement == REQUIRES_NTRU)
+ return 1;
+ break;
+
+ case SSL_RSA_WITH_RC4_128_MD5 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case SSL_RSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA :
+ if (requirement == REQUIRES_NTRU)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_128_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_NTRU_RSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_NTRU)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_256_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_NULL_SHA :
+ case TLS_RSA_WITH_NULL_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_NTRU_RSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_NTRU)
+ return 1;
+ break;
+#endif
+
+ case TLS_PSK_WITH_AES_128_CBC_SHA256 :
+ case TLS_PSK_WITH_AES_128_CBC_SHA :
+ case TLS_PSK_WITH_AES_256_CBC_SHA :
+ case TLS_PSK_WITH_NULL_SHA256 :
+ case TLS_PSK_WITH_NULL_SHA :
+ if (requirement == REQUIRES_PSK)
+ return 1;
+ break;
+
+#ifndef NO_RSA
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_HC_128_MD5 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_HC_128_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_HC_128_B2B256:
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_128_CBC_B2B256:
+ case TLS_RSA_WITH_AES_256_CBC_B2B256:
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_RABBIT_SHA :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_AES_128_GCM_SHA256 :
+ case TLS_RSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 :
+ case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+
+ case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA :
+ case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA :
+ case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 :
+ case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ break;
+
+ case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA :
+ case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA :
+ case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 :
+ case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 :
+ if (requirement == REQUIRES_RSA)
+ return 1;
+ if (requirement == REQUIRES_RSA_SIG)
+ return 1;
+ if (requirement == REQUIRES_DHE)
+ return 1;
+ break;
+#endif
+
+ default:
+ CYASSL_MSG("Unsupported cipher suite, CipherRequires");
+ return 0;
+ } /* switch */
+ } /* if ECC / Normal suites else */
+
+ return 0;
+ }
+
+
+ /* Make sure client setup is valid for this suite, true on success */
+ int VerifyClientSuite(CYASSL* ssl)
+ {
+ int havePSK = 0;
+ byte first = ssl->options.cipherSuite0;
+ byte second = ssl->options.cipherSuite;
+
+ CYASSL_ENTER("VerifyClientSuite");
+
+ #ifndef NO_PSK
+ havePSK = ssl->options.havePSK;
+ #endif
+
+ if (CipherRequires(first, second, REQUIRES_PSK)) {
+ CYASSL_MSG("Requires PSK");
+ if (havePSK == 0) {
+ CYASSL_MSG("Don't have PSK");
+ return 0;
+ }
+ }
+
+ return 1; /* success */
+ }
+
+
+ /* Make sure server cert/key are valid for this suite, true on success */
+ static int VerifyServerSuite(CYASSL* ssl, word16 idx)
+ {
+ int haveRSA = !ssl->options.haveStaticECC;
+ int havePSK = 0;
+ byte first;
+ byte second;
+
+ CYASSL_ENTER("VerifyServerSuite");
+
+ if (ssl->suites == NULL) {
+ CYASSL_MSG("Suites pointer error");
+ return 0;
+ }
+
+ first = ssl->suites->suites[idx];
+ second = ssl->suites->suites[idx+1];
+
+ #ifndef NO_PSK
+ havePSK = ssl->options.havePSK;
+ #endif
+
+ if (ssl->options.haveNTRU)
+ haveRSA = 0;
+
+ if (CipherRequires(first, second, REQUIRES_RSA)) {
+ CYASSL_MSG("Requires RSA");
+ if (haveRSA == 0) {
+ CYASSL_MSG("Don't have RSA");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_DHE)) {
+ CYASSL_MSG("Requires DHE");
+ if (ssl->options.haveDH == 0) {
+ CYASSL_MSG("Don't have DHE");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_ECC_DSA)) {
+ CYASSL_MSG("Requires ECCDSA");
+ if (ssl->options.haveECDSAsig == 0) {
+ CYASSL_MSG("Don't have ECCDSA");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_ECC_STATIC)) {
+ CYASSL_MSG("Requires static ECC");
+ if (ssl->options.haveStaticECC == 0) {
+ CYASSL_MSG("Don't have static ECC");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_PSK)) {
+ CYASSL_MSG("Requires PSK");
+ if (havePSK == 0) {
+ CYASSL_MSG("Don't have PSK");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_NTRU)) {
+ CYASSL_MSG("Requires NTRU");
+ if (ssl->options.haveNTRU == 0) {
+ CYASSL_MSG("Don't have NTRU");
+ return 0;
+ }
+ }
+
+ if (CipherRequires(first, second, REQUIRES_RSA_SIG)) {
+ CYASSL_MSG("Requires RSA Signature");
+ if (ssl->options.side == CYASSL_SERVER_END &&
+ ssl->options.haveECDSAsig == 1) {
+ CYASSL_MSG("Don't have RSA Signature");
+ return 0;
+ }
+ }
+
+#ifdef HAVE_SUPPORTED_CURVES
+ if (!TLSX_ValidateEllipticCurves(ssl, first, second)) {
+ CYASSL_MSG("Don't have matching curves");
+ return 0;
+ }
+#endif
+
+ /* ECCDHE is always supported if ECC on */
+
+ return 1;
+ }
+
+
+ static int MatchSuite(CYASSL* ssl, Suites* peerSuites)
+ {
+ word16 i, j;
+
+ CYASSL_ENTER("MatchSuite");
+
+ /* & 0x1 equivalent % 2 */
+ if (peerSuites->suiteSz == 0 || peerSuites->suiteSz & 0x1)
+ return MATCH_SUITE_ERROR;
+
+ if (ssl->suites == NULL)
+ return SUITES_ERROR;
+ /* start with best, if a match we are good */
+ for (i = 0; i < ssl->suites->suiteSz; i += 2)
+ for (j = 0; j < peerSuites->suiteSz; j += 2)
+ if (ssl->suites->suites[i] == peerSuites->suites[j] &&
+ ssl->suites->suites[i+1] == peerSuites->suites[j+1] ) {
+
+ if (VerifyServerSuite(ssl, i)) {
+ int result;
+ CYASSL_MSG("Verified suite validity");
+ ssl->options.cipherSuite0 = ssl->suites->suites[i];
+ ssl->options.cipherSuite = ssl->suites->suites[i+1];
+ result = SetCipherSpecs(ssl);
+ if (result == 0)
+ PickHashSigAlgo(ssl, peerSuites->hashSigAlgo,
+ peerSuites->hashSigAlgoSz);
+ return result;
+ }
+ else {
+ CYASSL_MSG("Could not verify suite validity, continue");
+ }
+ }
+
+ return MATCH_SUITE_ERROR;
+ }
+
+
+ /* process old style client hello, deprecate? */
+ int ProcessOldClientHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ word32 inSz, word16 sz)
+ {
+ word32 idx = *inOutIdx;
+ word16 sessionSz;
+ word16 randomSz;
+ word16 i, j;
+ ProtocolVersion pv;
+ Suites clSuites;
+
+ (void)inSz;
+ CYASSL_MSG("Got old format client hello");
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ClientHello", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("ClientHello", &ssl->timeoutInfo);
+#endif
+
+ /* manually hash input since different format */
+#ifndef NO_OLD_TLS
+#ifndef NO_MD5
+ Md5Update(&ssl->hashMd5, input + idx, sz);
+#endif
+#ifndef NO_SHA
+ ShaUpdate(&ssl->hashSha, input + idx, sz);
+#endif
+#endif
+#ifndef NO_SHA256
+ if (IsAtLeastTLSv1_2(ssl)) {
+ int shaRet = Sha256Update(&ssl->hashSha256, input + idx, sz);
+
+ if (shaRet != 0)
+ return shaRet;
+ }
+#endif
+
+ /* does this value mean client_hello? */
+ idx++;
+
+ /* version */
+ pv.major = input[idx++];
+ pv.minor = input[idx++];
+ ssl->chVersion = pv; /* store */
+
+ if (ssl->version.minor > pv.minor) {
+ byte haveRSA = 0;
+ byte havePSK = 0;
+ if (!ssl->options.downgrade) {
+ CYASSL_MSG("Client trying to connect with lesser version");
+ return VERSION_ERROR;
+ }
+ if (pv.minor == SSLv3_MINOR) {
+ /* turn off tls */
+ CYASSL_MSG(" downgrading to SSLv3");
+ ssl->options.tls = 0;
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = SSLv3_MINOR;
+ }
+ else if (pv.minor == TLSv1_MINOR) {
+ CYASSL_MSG(" downgrading to TLSv1");
+ /* turn off tls 1.1+ */
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = TLSv1_MINOR;
+ }
+ else if (pv.minor == TLSv1_1_MINOR) {
+ CYASSL_MSG(" downgrading to TLSv1.1");
+ ssl->version.minor = TLSv1_1_MINOR;
+ }
+#ifndef NO_RSA
+ haveRSA = 1;
+#endif
+#ifndef NO_PSK
+ havePSK = ssl->options.havePSK;
+#endif
+
+ InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
+ ssl->options.haveDH, ssl->options.haveNTRU,
+ ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
+ ssl->options.side);
+ }
+
+ /* suite size */
+ ato16(&input[idx], &clSuites.suiteSz);
+ idx += 2;
+
+ if (clSuites.suiteSz > MAX_SUITE_SZ)
+ return BUFFER_ERROR;
+ clSuites.hashSigAlgoSz = 0;
+
+ /* session size */
+ ato16(&input[idx], &sessionSz);
+ idx += 2;
+
+ if (sessionSz > ID_LEN)
+ return BUFFER_ERROR;
+
+ /* random size */
+ ato16(&input[idx], &randomSz);
+ idx += 2;
+
+ if (randomSz > RAN_LEN)
+ return BUFFER_ERROR;
+
+ /* suites */
+ for (i = 0, j = 0; i < clSuites.suiteSz; i += 3) {
+ byte first = input[idx++];
+ if (!first) { /* implicit: skip sslv2 type */
+ XMEMCPY(&clSuites.suites[j], &input[idx], 2);
+ j += 2;
+ }
+ idx += 2;
+ }
+ clSuites.suiteSz = j;
+
+ /* session id */
+ if (sessionSz) {
+ XMEMCPY(ssl->arrays->sessionID, input + idx, sessionSz);
+ idx += sessionSz;
+ ssl->options.resuming = 1;
+ }
+
+ /* random */
+ if (randomSz < RAN_LEN)
+ XMEMSET(ssl->arrays->clientRandom, 0, RAN_LEN - randomSz);
+ XMEMCPY(&ssl->arrays->clientRandom[RAN_LEN - randomSz], input + idx,
+ randomSz);
+ idx += randomSz;
+
+ if (ssl->options.usingCompression)
+ ssl->options.usingCompression = 0; /* turn off */
+
+ ssl->options.clientState = CLIENT_HELLO_COMPLETE;
+ *inOutIdx = idx;
+
+ ssl->options.haveSessionId = 1;
+ /* DoClientHello uses same resume code */
+ if (ssl->options.resuming) { /* let's try */
+ int ret = -1;
+ CYASSL_SESSION* session = GetSession(ssl,ssl->arrays->masterSecret);
+ if (!session) {
+ CYASSL_MSG("Session lookup for resume failed");
+ ssl->options.resuming = 0;
+ } else {
+ if (MatchSuite(ssl, &clSuites) < 0) {
+ CYASSL_MSG("Unsupported cipher suite, OldClientHello");
+ return UNSUPPORTED_SUITE;
+ }
+ #ifdef SESSION_CERTS
+ ssl->session = *session; /* restore session certs. */
+ #endif
+
+ ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
+ RAN_LEN);
+ if (ret != 0)
+ return ret;
+
+ #ifdef NO_OLD_TLS
+ ret = DeriveTlsKeys(ssl);
+ #else
+ #ifndef NO_TLS
+ if (ssl->options.tls)
+ ret = DeriveTlsKeys(ssl);
+ #endif
+ if (!ssl->options.tls)
+ ret = DeriveKeys(ssl);
+ #endif
+ ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
+
+ return ret;
+ }
+ }
+
+ return MatchSuite(ssl, &clSuites);
+ }
+
+
+ static int DoClientHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
+ word32 helloSz)
+ {
+ byte b;
+ ProtocolVersion pv;
+ Suites clSuites;
+ word32 i = *inOutIdx;
+ word32 begin = i;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn) AddPacketName("ClientHello", &ssl->handShakeInfo);
+ if (ssl->toInfoOn) AddLateName("ClientHello", &ssl->timeoutInfo);
+#endif
+
+ /* protocol version, random and session id length check */
+ if ((i - begin) + OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ /* protocol version */
+ XMEMCPY(&pv, input + i, OPAQUE16_LEN);
+ ssl->chVersion = pv; /* store */
+ i += OPAQUE16_LEN;
+
+ if (ssl->version.minor > pv.minor) {
+ byte haveRSA = 0;
+ byte havePSK = 0;
+
+ if (!ssl->options.downgrade) {
+ CYASSL_MSG("Client trying to connect with lesser version");
+ return VERSION_ERROR;
+ }
+
+ if (pv.minor == SSLv3_MINOR) {
+ /* turn off tls */
+ CYASSL_MSG(" downgrading to SSLv3");
+ ssl->options.tls = 0;
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = SSLv3_MINOR;
+ }
+ else if (pv.minor == TLSv1_MINOR) {
+ /* turn off tls 1.1+ */
+ CYASSL_MSG(" downgrading to TLSv1");
+ ssl->options.tls1_1 = 0;
+ ssl->version.minor = TLSv1_MINOR;
+ }
+ else if (pv.minor == TLSv1_1_MINOR) {
+ CYASSL_MSG(" downgrading to TLSv1.1");
+ ssl->version.minor = TLSv1_1_MINOR;
+ }
+#ifndef NO_RSA
+ haveRSA = 1;
+#endif
+#ifndef NO_PSK
+ havePSK = ssl->options.havePSK;
+#endif
+ InitSuites(ssl->suites, ssl->version, haveRSA, havePSK,
+ ssl->options.haveDH, ssl->options.haveNTRU,
+ ssl->options.haveECDSAsig, ssl->options.haveStaticECC,
+ ssl->options.side);
+ }
+
+ /* random */
+ XMEMCPY(ssl->arrays->clientRandom, input + i, RAN_LEN);
+ i += RAN_LEN;
+
+#ifdef SHOW_SECRETS
+ {
+ int j;
+ printf("client random: ");
+ for (j = 0; j < RAN_LEN; j++)
+ printf("%02x", ssl->arrays->clientRandom[j]);
+ printf("\n");
+ }
+#endif
+
+ /* session id */
+ b = input[i++];
+
+ if (b == ID_LEN) {
+ if ((i - begin) + ID_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ XMEMCPY(ssl->arrays->sessionID, input + i, ID_LEN);
+ i += ID_LEN;
+ ssl->options.resuming = 1; /* client wants to resume */
+ CYASSL_MSG("Client wants to resume session");
+ }
+ else if (b) {
+ CYASSL_MSG("Invalid session ID size");
+ return BUFFER_ERROR; /* session ID nor 0 neither 32 bytes long */
+ }
+
+ #ifdef CYASSL_DTLS
+ /* cookie */
+ if (ssl->options.dtls) {
+
+ if ((i - begin) + OPAQUE8_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ b = input[i++];
+
+ if (b) {
+ byte cookie[MAX_COOKIE_LEN];
+
+ if (b > MAX_COOKIE_LEN)
+ return BUFFER_ERROR;
+
+ if ((i - begin) + b > helloSz)
+ return BUFFER_ERROR;
+
+ if (ssl->ctx->CBIOCookie == NULL) {
+ CYASSL_MSG("Your Cookie callback is null, please set");
+ return COOKIE_ERROR;
+ }
+
+ if ((ssl->ctx->CBIOCookie(ssl, cookie, COOKIE_SZ,
+ ssl->IOCB_CookieCtx) != COOKIE_SZ)
+ || (b != COOKIE_SZ)
+ || (XMEMCMP(cookie, input + i, b) != 0)) {
+ return COOKIE_ERROR;
+ }
+
+ i += b;
+ }
+ }
+ #endif
+
+ /* suites */
+ if ((i - begin) + OPAQUE16_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ ato16(&input[i], &clSuites.suiteSz);
+ i += OPAQUE16_LEN;
+
+ /* suites and compression length check */
+ if ((i - begin) + clSuites.suiteSz + OPAQUE8_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ if (clSuites.suiteSz > MAX_SUITE_SZ)
+ return BUFFER_ERROR;
+
+ XMEMCPY(clSuites.suites, input + i, clSuites.suiteSz);
+ i += clSuites.suiteSz;
+ clSuites.hashSigAlgoSz = 0;
+
+ /* compression length */
+ b = input[i++];
+
+ if ((i - begin) + b > helloSz)
+ return BUFFER_ERROR;
+
+ if (ssl->options.usingCompression) {
+ int match = 0;
+
+ while (b--) {
+ byte comp = input[i++];
+
+ if (comp == ZLIB_COMPRESSION)
+ match = 1;
+ }
+
+ if (!match) {
+ CYASSL_MSG("Not matching compression, turning off");
+ ssl->options.usingCompression = 0; /* turn off */
+ }
+ }
+ else
+ i += b; /* ignore, since we're not on */
+
+ *inOutIdx = i;
+
+ /* tls extensions */
+ if ((i - begin) < helloSz) {
+#ifdef HAVE_TLS_EXTENSIONS
+ if (IsTLS(ssl)) {
+ int ret = 0;
+#else
+ if (IsAtLeastTLSv1_2(ssl)) {
+#endif
+ /* Process the hello extension. Skip unsupported. */
+ word16 totalExtSz;
+
+ if ((i - begin) + OPAQUE16_LEN > helloSz)
+ return BUFFER_ERROR;
+
+ ato16(&input[i], &totalExtSz);
+ i += OPAQUE16_LEN;
+
+ if ((i - begin) + totalExtSz > helloSz)
+ return BUFFER_ERROR;
+
+#ifdef HAVE_TLS_EXTENSIONS
+ if ((ret = TLSX_Parse(ssl, (byte *) input + i,
+ totalExtSz, 1, &clSuites)))
+ return ret;
+
+ i += totalExtSz;
+#else
+ while (totalExtSz) {
+ word16 extId, extSz;
+
+ if (OPAQUE16_LEN + OPAQUE16_LEN > totalExtSz)
+ return BUFFER_ERROR;
+
+ ato16(&input[i], &extId);
+ i += OPAQUE16_LEN;
+ ato16(&input[i], &extSz);
+ i += OPAQUE16_LEN;
+
+ if (OPAQUE16_LEN + OPAQUE16_LEN + extSz > totalExtSz)
+ return BUFFER_ERROR;
+
+ if (extId == HELLO_EXT_SIG_ALGO) {
+ ato16(&input[i], &clSuites.hashSigAlgoSz);
+ i += OPAQUE16_LEN;
+
+ if (OPAQUE16_LEN + clSuites.hashSigAlgoSz > extSz)
+ return BUFFER_ERROR;
+
+ XMEMCPY(clSuites.hashSigAlgo, &input[i],
+ min(clSuites.hashSigAlgoSz, HELLO_EXT_SIGALGO_MAX));
+ i += clSuites.hashSigAlgoSz;
+ }
+ else
+ i += extSz;
+
+ totalExtSz -= OPAQUE16_LEN + OPAQUE16_LEN + extSz;
+ }
+#endif
+ *inOutIdx = i;
+ }
+ else
+ *inOutIdx = begin + helloSz; /* skip extensions */
+ }
+
+ ssl->options.clientState = CLIENT_HELLO_COMPLETE;
+ ssl->options.haveSessionId = 1;
+
+ /* ProcessOld uses same resume code */
+ if (ssl->options.resuming && (!ssl->options.dtls ||
+ ssl->options.acceptState == HELLO_VERIFY_SENT)) { /* let's try */
+ int ret = -1;
+ CYASSL_SESSION* session = GetSession(ssl,ssl->arrays->masterSecret);
+
+ if (!session) {
+ CYASSL_MSG("Session lookup for resume failed");
+ ssl->options.resuming = 0;
+ }
+ else {
+ if (MatchSuite(ssl, &clSuites) < 0) {
+ CYASSL_MSG("Unsupported cipher suite, ClientHello");
+ return UNSUPPORTED_SUITE;
+ }
+ #ifdef SESSION_CERTS
+ ssl->session = *session; /* restore session certs. */
+ #endif
+
+ ret = RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom,
+ RAN_LEN);
+ if (ret != 0)
+ return ret;
+
+ #ifdef NO_OLD_TLS
+ ret = DeriveTlsKeys(ssl);
+ #else
+ #ifndef NO_TLS
+ if (ssl->options.tls)
+ ret = DeriveTlsKeys(ssl);
+ #endif
+ if (!ssl->options.tls)
+ ret = DeriveKeys(ssl);
+ #endif
+ ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
+
+ return ret;
+ }
+ }
+ return MatchSuite(ssl, &clSuites);
+ }
+
+#if !defined(NO_RSA) || defined(HAVE_ECC)
+ static int DoCertificateVerify(CYASSL* ssl, byte* input, word32* inOutIdx,
+ word32 size)
+ {
+ word16 sz = 0;
+ int ret = VERIFY_CERT_ERROR; /* start in error state */
+ byte hashAlgo = sha_mac;
+ byte sigAlgo = anonymous_sa_algo;
+ word32 begin = *inOutIdx;
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("CertificateVerify", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("CertificateVerify", &ssl->timeoutInfo);
+ #endif
+
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if ((*inOutIdx - begin) + ENUM_LEN + ENUM_LEN > size)
+ return BUFFER_ERROR;
+
+ hashAlgo = input[(*inOutIdx)++];
+ sigAlgo = input[(*inOutIdx)++];
+ }
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &sz);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + sz > size || sz > ENCRYPT_LEN)
+ return BUFFER_ERROR;
+
+ /* RSA */
+#ifndef NO_RSA
+ if (ssl->peerRsaKeyPresent != 0) {
+ byte* out = NULL;
+ int outLen = 0;
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaVerifyCb)
+ doUserRsa = 1;
+ #endif /*HAVE_PK_CALLBACKS */
+
+ CYASSL_MSG("Doing RSA peer cert verify");
+
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ outLen = ssl->ctx->RsaVerifyCb(ssl, input + *inOutIdx, sz,
+ &out,
+ ssl->buffers.peerRsaKey.buffer,
+ ssl->buffers.peerRsaKey.length,
+ ssl->RsaVerifyCtx);
+ #endif /*HAVE_PK_CALLBACKS */
+ }
+ else {
+ outLen = RsaSSL_VerifyInline(input + *inOutIdx, sz, &out,
+ ssl->peerRsaKey);
+ }
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ byte encodedSig[MAX_ENCODED_SIG_SZ];
+ word32 sigSz;
+ byte* digest = ssl->certHashes.sha;
+ int typeH = SHAh;
+ int digestSz = SHA_DIGEST_SIZE;
+
+ if (sigAlgo != rsa_sa_algo) {
+ CYASSL_MSG("Oops, peer sent RSA key but not in verify");
+ }
+
+ if (hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = ssl->certHashes.sha256;
+ typeH = SHA256h;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = ssl->certHashes.sha384;
+ typeH = SHA384h;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+
+ sigSz = EncodeSignature(encodedSig, digest, digestSz, typeH);
+
+ if (outLen == (int)sigSz && out && XMEMCMP(out, encodedSig,
+ min(sigSz, MAX_ENCODED_SIG_SZ)) == 0)
+ ret = 0; /* verified */
+ }
+ else {
+ if (outLen == FINISHED_SZ && out && XMEMCMP(out,
+ &ssl->certHashes, FINISHED_SZ) == 0)
+ ret = 0; /* verified */
+ }
+ }
+#endif
+#ifdef HAVE_ECC
+ if (ssl->peerEccDsaKeyPresent) {
+ int verify = 0;
+ int err = -1;
+ byte* digest = ssl->certHashes.sha;
+ word32 digestSz = SHA_DIGEST_SIZE;
+ byte doUserEcc = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->EccVerifyCb)
+ doUserEcc = 1;
+ #endif
+
+ CYASSL_MSG("Doing ECC peer cert verify");
+
+ if (IsAtLeastTLSv1_2(ssl)) {
+ if (sigAlgo != ecc_dsa_sa_algo) {
+ CYASSL_MSG("Oops, peer sent ECC key but not in verify");
+ }
+
+ if (hashAlgo == sha256_mac) {
+ #ifndef NO_SHA256
+ digest = ssl->certHashes.sha256;
+ digestSz = SHA256_DIGEST_SIZE;
+ #endif
+ }
+ else if (hashAlgo == sha384_mac) {
+ #ifdef CYASSL_SHA384
+ digest = ssl->certHashes.sha384;
+ digestSz = SHA384_DIGEST_SIZE;
+ #endif
+ }
+ }
+
+ if (doUserEcc) {
+ #ifdef HAVE_PK_CALLBACKS
+ ret = ssl->ctx->EccVerifyCb(ssl, input + *inOutIdx, sz, digest,
+ digestSz,
+ ssl->buffers.peerEccDsaKey.buffer,
+ ssl->buffers.peerEccDsaKey.length,
+ &verify, ssl->EccVerifyCtx);
+ #endif
+ }
+ else {
+ err = ecc_verify_hash(input + *inOutIdx, sz, digest, digestSz,
+ &verify, ssl->peerEccDsaKey);
+ }
+
+ if (err == 0 && verify == 1)
+ ret = 0; /* verified */
+ }
+#endif
+ *inOutIdx += sz;
+
+ if (ret == 0)
+ ssl->options.havePeerVerify = 1;
+
+ return ret;
+ }
+#endif /* !NO_RSA || HAVE_ECC */
+
+ int SendServerHelloDone(CYASSL* ssl)
+ {
+ byte *output;
+ int sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ;
+ int ret;
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls)
+ sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA;
+ #endif
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, 0, server_hello_done, ssl);
+
+ #ifdef CYASSL_DTLS
+ if (ssl->options.dtls) {
+ if ((ret = DtlsPoolSave(ssl, output, sendSz)) != 0)
+ return 0;
+ }
+ #endif
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ServerHelloDone", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("ServerHelloDone", &ssl->timeoutInfo, output, sendSz,
+ ssl->heap);
+#endif
+ ssl->options.serverState = SERVER_HELLODONE_COMPLETE;
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ return SendBuffered(ssl);
+ }
+
+#ifdef CYASSL_DTLS
+ int SendHelloVerifyRequest(CYASSL* ssl)
+ {
+ byte* output;
+ byte cookieSz = COOKIE_SZ;
+ int length = VERSION_SZ + ENUM_LEN + cookieSz;
+ int idx = DTLS_RECORD_HEADER_SZ + DTLS_HANDSHAKE_HEADER_SZ;
+ int sendSz = length + idx;
+ int ret;
+
+ /* check for available size */
+ if ((ret = CheckAvailableSize(ssl, sendSz)) != 0)
+ return ret;
+
+ /* get ouput buffer */
+ output = ssl->buffers.outputBuffer.buffer +
+ ssl->buffers.outputBuffer.length;
+
+ AddHeaders(output, length, hello_verify_request, ssl);
+
+ output[idx++] = ssl->chVersion.major;
+ output[idx++] = ssl->chVersion.minor;
+
+ output[idx++] = cookieSz;
+ if (ssl->ctx->CBIOCookie == NULL) {
+ CYASSL_MSG("Your Cookie callback is null, please set");
+ return COOKIE_ERROR;
+ }
+ if ((ret = ssl->ctx->CBIOCookie(ssl, output + idx, cookieSz,
+ ssl->IOCB_CookieCtx)) < 0)
+ return ret;
+
+ ret = HashOutput(ssl, output, sendSz, 0);
+ if (ret != 0)
+ return ret;
+
+#ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("HelloVerifyRequest", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddPacketInfo("HelloVerifyRequest", &ssl->timeoutInfo, output,
+ sendSz, ssl->heap);
+#endif
+ ssl->options.serverState = SERVER_HELLOVERIFYREQUEST_COMPLETE;
+
+ ssl->buffers.outputBuffer.length += sendSz;
+
+ return SendBuffered(ssl);
+ }
+#endif
+
+ static int DoClientKeyExchange(CYASSL* ssl, byte* input, word32* inOutIdx,
+ word32 size)
+ {
+ int ret = 0;
+ word32 length = 0;
+ byte* out = NULL;
+ word32 begin = *inOutIdx;
+
+ (void)length; /* shut up compiler warnings */
+ (void)out;
+ (void)input;
+ (void)size;
+
+ if (ssl->options.side != CYASSL_SERVER_END) {
+ CYASSL_MSG("Client received client keyexchange, attack?");
+ CYASSL_ERROR(ssl->error = SIDE_ERROR);
+ return SSL_FATAL_ERROR;
+ }
+
+ if (ssl->options.clientState < CLIENT_HELLO_COMPLETE) {
+ CYASSL_MSG("Client sending keyexchange at wrong time");
+ SendAlert(ssl, alert_fatal, unexpected_message);
+ return OUT_OF_ORDER_E;
+ }
+
+ #ifndef NO_CERTS
+ if (ssl->options.verifyPeer && ssl->options.failNoCert)
+ if (!ssl->options.havePeerCert) {
+ CYASSL_MSG("client didn't present peer cert");
+ return NO_PEER_CERT;
+ }
+ #endif
+
+ #ifdef CYASSL_CALLBACKS
+ if (ssl->hsInfoOn)
+ AddPacketName("ClientKeyExchange", &ssl->handShakeInfo);
+ if (ssl->toInfoOn)
+ AddLateName("ClientKeyExchange", &ssl->timeoutInfo);
+ #endif
+
+ switch (ssl->specs.kea) {
+ #ifndef NO_RSA
+ case rsa_kea:
+ {
+ word32 idx = 0;
+ RsaKey key;
+ byte doUserRsa = 0;
+
+ #ifdef HAVE_PK_CALLBACKS
+ if (ssl->ctx->RsaDecCb)
+ doUserRsa = 1;
+ #endif
+
+ ret = InitRsaKey(&key, ssl->heap);
+ if (ret != 0) return ret;
+
+ if (ssl->buffers.key.buffer)
+ ret = RsaPrivateKeyDecode(ssl->buffers.key.buffer, &idx,
+ &key, ssl->buffers.key.length);
+ else
+ return NO_PRIVATE_KEY;
+
+ if (ret == 0) {
+ length = RsaEncryptSize(&key);
+ ssl->arrays->preMasterSz = SECRET_LEN;
+
+ if (ssl->options.tls) {
+ word16 check;
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &check);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((word32) check != length) {
+ CYASSL_MSG("RSA explicit size doesn't match");
+ FreeRsaKey(&key);
+ return RSA_PRIVATE_ERROR;
+ }
+ }
+
+ if ((*inOutIdx - begin) + length > size) {
+ CYASSL_MSG("RSA message too big");
+ FreeRsaKey(&key);
+ return BUFFER_ERROR;
+ }
+
+ if (doUserRsa) {
+ #ifdef HAVE_PK_CALLBACKS
+ ret = ssl->ctx->RsaDecCb(ssl,
+ input + *inOutIdx, length, &out,
+ ssl->buffers.key.buffer,
+ ssl->buffers.key.length,
+ ssl->RsaDecCtx);
+ #endif
+ }
+ else {
+ ret = RsaPrivateDecryptInline(input + *inOutIdx, length,
+ &out, &key);
+ }
+
+ *inOutIdx += length;
+
+ if (ret == SECRET_LEN) {
+ XMEMCPY(ssl->arrays->preMasterSecret, out, SECRET_LEN);
+ if (ssl->arrays->preMasterSecret[0] !=
+ ssl->chVersion.major
+ || ssl->arrays->preMasterSecret[1] !=
+ ssl->chVersion.minor)
+ ret = PMS_VERSION_ERROR;
+ else
+ ret = MakeMasterSecret(ssl);
+ }
+ else {
+ ret = RSA_PRIVATE_ERROR;
+ }
+ }
+
+ FreeRsaKey(&key);
+ }
+ break;
+ #endif
+ #ifndef NO_PSK
+ case psk_kea:
+ {
+ byte* pms = ssl->arrays->preMasterSecret;
+ word16 ci_sz;
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &ci_sz);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if (ci_sz > MAX_PSK_ID_LEN)
+ return CLIENT_ID_ERROR;
+
+ if ((*inOutIdx - begin) + ci_sz > size)
+ return BUFFER_ERROR;
+
+ XMEMCPY(ssl->arrays->client_identity, input + *inOutIdx, ci_sz);
+ *inOutIdx += ci_sz;
+
+ ssl->arrays->client_identity[min(ci_sz, MAX_PSK_ID_LEN-1)] = 0;
+ ssl->arrays->psk_keySz = ssl->options.server_psk_cb(ssl,
+ ssl->arrays->client_identity, ssl->arrays->psk_key,
+ MAX_PSK_KEY_LEN);
+
+ if (ssl->arrays->psk_keySz == 0 ||
+ ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN)
+ return PSK_KEY_ERROR;
+
+ /* make psk pre master secret */
+ /* length of key + length 0s + length of key + key */
+ c16toa((word16) ssl->arrays->psk_keySz, pms);
+ pms += OPAQUE16_LEN;
+
+ XMEMSET(pms, 0, ssl->arrays->psk_keySz);
+ pms += ssl->arrays->psk_keySz;
+
+ c16toa((word16) ssl->arrays->psk_keySz, pms);
+ pms += OPAQUE16_LEN;
+
+ XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz);
+ ssl->arrays->preMasterSz = ssl->arrays->psk_keySz * 2 + 4;
+
+ ret = MakeMasterSecret(ssl);
+
+ /* No further need for PSK */
+ XMEMSET(ssl->arrays->psk_key, 0, ssl->arrays->psk_keySz);
+ ssl->arrays->psk_keySz = 0;
+ }
+ break;
+ #endif /* NO_PSK */
+ #ifdef HAVE_NTRU
+ case ntru_kea:
+ {
+ word16 cipherLen;
+ word16 plainLen = sizeof(ssl->arrays->preMasterSecret);
+
+ if (!ssl->buffers.key.buffer)
+ return NO_PRIVATE_KEY;
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &cipherLen);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if (cipherLen > MAX_NTRU_ENCRYPT_SZ)
+ return NTRU_KEY_ERROR;
+
+ if ((*inOutIdx - begin) + cipherLen > size)
+ return BUFFER_ERROR;
+
+ if (NTRU_OK != crypto_ntru_decrypt(
+ (word16) ssl->buffers.key.length,
+ ssl->buffers.key.buffer, cipherLen,
+ input + *inOutIdx, &plainLen,
+ ssl->arrays->preMasterSecret))
+ return NTRU_DECRYPT_ERROR;
+
+ if (plainLen != SECRET_LEN)
+ return NTRU_DECRYPT_ERROR;
+
+ *inOutIdx += cipherLen;
+
+ ssl->arrays->preMasterSz = plainLen;
+ ret = MakeMasterSecret(ssl);
+ }
+ break;
+ #endif /* HAVE_NTRU */
+ #ifdef HAVE_ECC
+ case ecc_diffie_hellman_kea:
+ {
+ if ((*inOutIdx - begin) + OPAQUE8_LEN > size)
+ return BUFFER_ERROR;
+
+ length = input[(*inOutIdx)++];
+
+ if ((*inOutIdx - begin) + length > size)
+ return BUFFER_ERROR;
+
+ if (ecc_import_x963(input + *inOutIdx, length, ssl->peerEccKey))
+ return ECC_PEERKEY_ERROR;
+
+ *inOutIdx += length;
+ ssl->peerEccKeyPresent = 1;
+
+ length = sizeof(ssl->arrays->preMasterSecret);
+
+ if (ssl->specs.static_ecdh) {
+ ecc_key staticKey;
+ word32 i = 0;
+
+ ecc_init(&staticKey);
+ ret = EccPrivateKeyDecode(ssl->buffers.key.buffer, &i,
+ &staticKey, ssl->buffers.key.length);
+
+ if (ret == 0)
+ ret = ecc_shared_secret(&staticKey, ssl->peerEccKey,
+ ssl->arrays->preMasterSecret, &length);
+
+ ecc_free(&staticKey);
+ }
+ else
+ ret = ecc_shared_secret(ssl->eccTempKey, ssl->peerEccKey,
+ ssl->arrays->preMasterSecret, &length);
+
+ if (ret != 0)
+ return ECC_SHARED_ERROR;
+
+ ssl->arrays->preMasterSz = length;
+ ret = MakeMasterSecret(ssl);
+ }
+ break;
+ #endif /* HAVE_ECC */
+ #ifdef OPENSSL_EXTRA
+ case diffie_hellman_kea:
+ {
+ word16 clientPubSz;
+ DhKey dhKey;
+
+ if ((*inOutIdx - begin) + OPAQUE16_LEN > size)
+ return BUFFER_ERROR;
+
+ ato16(input + *inOutIdx, &clientPubSz);
+ *inOutIdx += OPAQUE16_LEN;
+
+ if ((*inOutIdx - begin) + clientPubSz > size)
+ return BUFFER_ERROR;
+
+ InitDhKey(&dhKey);
+ ret = DhSetKey(&dhKey, ssl->buffers.serverDH_P.buffer,
+ ssl->buffers.serverDH_P.length,
+ ssl->buffers.serverDH_G.buffer,
+ ssl->buffers.serverDH_G.length);
+ if (ret == 0)
+ ret = DhAgree(&dhKey, ssl->arrays->preMasterSecret,
+ &ssl->arrays->preMasterSz,
+ ssl->buffers.serverDH_Priv.buffer,
+ ssl->buffers.serverDH_Priv.length,
+ input + *inOutIdx, clientPubSz);
+ FreeDhKey(&dhKey);
+
+ *inOutIdx += clientPubSz;
+
+ if (ret == 0)
+ ret = MakeMasterSecret(ssl);
+ }
+ break;
+ #endif /* OPENSSL_EXTRA */
+ default:
+ {
+ CYASSL_MSG("Bad kea type");
+ ret = BAD_KEA_TYPE_E;
+ }
+ break;
+ }
+
+ /* No further need for PMS */
+ XMEMSET(ssl->arrays->preMasterSecret, 0, ssl->arrays->preMasterSz);
+ ssl->arrays->preMasterSz = 0;
+
+ if (ret == 0) {
+ ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE;
+ #ifndef NO_CERTS
+ if (ssl->options.verifyPeer)
+ ret = BuildCertHashes(ssl, &ssl->certHashes);
+ #endif
+ }
+
+ return ret;
+ }
+
+#endif /* NO_CYASSL_SERVER */
+