Diff: ssl/openssl.c

Revision:

0:5a29fd060ac8

diff -r 000000000000 -r 5a29fd060ac8 ssl/openssl.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/openssl.c	Mon May 13 18:15:18 2013 +0000
@@ -0,0 +1,323 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Enable a subset of openssl compatible functions. We don't aim to be 100%
+ * compatible - just to be able to do basic ports etc.
+ *
+ * Only really tested on mini_httpd, so I'm not too sure how extensive this
+ * port is.
+ */
+
+#include "config.h"
+
+#ifdef CONFIG_OPENSSL_COMPATIBLE
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include "os_port.h"
+#include "ssl.h"
+
+#define OPENSSL_CTX_ATTR  ((OPENSSL_CTX *)ssl_ctx->bonus_attr)
+
+static char *key_password = NULL;
+
+void *SSLv23_server_method(void) { return NULL; }
+void *SSLv3_server_method(void) { return NULL; }
+void *TLSv1_server_method(void) { return NULL; }
+void *SSLv23_client_method(void) { return NULL; }
+void *SSLv3_client_method(void) { return NULL; }
+void *TLSv1_client_method(void) { return NULL; }
+
+typedef void * (*ssl_func_type_t)(void);
+typedef void * (*bio_func_type_t)(void);
+
+typedef struct
+{
+    ssl_func_type_t ssl_func_type;
+} OPENSSL_CTX;
+
+SSL_CTX * SSL_CTX_new(ssl_func_type_t meth)
+{
+    SSL_CTX *ssl_ctx = ssl_ctx_new(0, 5);
+    ssl_ctx->bonus_attr = malloc(sizeof(OPENSSL_CTX));
+    OPENSSL_CTX_ATTR->ssl_func_type = meth;
+    return ssl_ctx;
+}
+
+void SSL_CTX_free(SSL_CTX * ssl_ctx)
+{
+    free(ssl_ctx->bonus_attr);
+    ssl_ctx_free(ssl_ctx);
+}
+
+SSL * SSL_new(SSL_CTX *ssl_ctx)
+{
+    SSL *ssl;
+    ssl_func_type_t ssl_func_type;
+
+    ssl = ssl_new(ssl_ctx, -1);        /* fd is set later */
+    ssl_func_type = OPENSSL_CTX_ATTR->ssl_func_type;
+
+#ifdef CONFIG_SSL_ENABLE_CLIENT
+    if (ssl_func_type == SSLv23_client_method ||
+        ssl_func_type == SSLv3_client_method ||
+        ssl_func_type == TLSv1_client_method)
+    {
+        SET_SSL_FLAG(SSL_IS_CLIENT);
+    }
+    else
+#endif
+    {
+        ssl->next_state = HS_CLIENT_HELLO;
+    }
+
+    return ssl;
+}
+
+int SSL_set_fd(SSL *s, int fd)
+{
+    s->client_fd = fd;
+    return 1;   /* always succeeds */
+}
+
+int SSL_accept(SSL *ssl)
+{
+    while (ssl_read(ssl, NULL) == SSL_OK)
+    {
+        if (ssl->next_state == HS_CLIENT_HELLO)
+            return 1;   /* we're done */
+    }
+
+    return -1;
+}
+
+#ifdef CONFIG_SSL_ENABLE_CLIENT
+int SSL_connect(SSL *ssl)
+{
+    return do_client_connect(ssl) == SSL_OK ? 1 : -1;
+}
+#endif
+
+void SSL_free(SSL *ssl)
+{
+    ssl_free(ssl);
+}
+
+int SSL_read(SSL *ssl, void *buf, int num)
+{
+    uint8_t *read_buf;
+    int ret;
+
+    while ((ret = ssl_read(ssl, &read_buf)) == SSL_OK);
+
+    if (ret > SSL_OK)
+    {
+        memcpy(buf, read_buf, ret > num ? num : ret);
+    }
+
+    return ret;
+}
+
+int SSL_write(SSL *ssl, const void *buf, int num)
+{
+    return ssl_write(ssl, buf, num);
+}
+
+int SSL_CTX_use_certificate_file(SSL_CTX *ssl_ctx, const char *file, int type)
+{
+    return (ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, file, NULL) == SSL_OK);
+}
+
+int SSL_CTX_use_PrivateKey_file(SSL_CTX *ssl_ctx, const char *file, int type)
+{
+    return (ssl_obj_load(ssl_ctx, SSL_OBJ_RSA_KEY, file, key_password) == SSL_OK);
+}
+
+int SSL_CTX_use_certificate_ASN1(SSL_CTX *ssl_ctx, int len, const uint8_t *d)
+{
+    return (ssl_obj_memory_load(ssl_ctx, 
+                        SSL_OBJ_X509_CERT, d, len, NULL) == SSL_OK);
+}
+
+int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
+                                            unsigned int sid_ctx_len)
+{
+    return 1;
+}
+
+int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
+{
+    return 1;
+}
+
+int SSL_CTX_use_certificate_chain_file(SSL_CTX *ssl_ctx, const char *file)
+{
+    return (ssl_obj_load(ssl_ctx, 
+                        SSL_OBJ_X509_CERT, file, NULL) == SSL_OK);
+}
+
+int SSL_shutdown(SSL *ssl)
+{
+    return 1;
+}
+
+/*** get/set session ***/
+SSL_SESSION *SSL_get1_session(SSL *ssl)
+{
+    return (SSL_SESSION *)ssl_get_session_id(ssl); /* note: wrong cast */
+}
+
+int SSL_set_session(SSL *ssl, SSL_SESSION *session)
+{
+    memcpy(ssl->session_id, (uint8_t *)session, SSL_SESSION_ID_SIZE);
+    return 1;
+}
+
+void SSL_SESSION_free(SSL_SESSION *session) { }
+/*** end get/set session ***/
+
+long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
+{
+    return 0;
+}
+
+void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
+                                 int (*verify_callback)(int, void *)) { }
+
+void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) { }
+
+int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
+                                           const char *CApath)
+{
+    return 1;
+}
+
+void *SSL_load_client_CA_file(const char *file)
+{
+    return (void *)file;
+}
+
+void SSL_CTX_set_client_CA_list(SSL_CTX *ssl_ctx, void *file) 
+{ 
+
+    ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, (const char *)file, NULL);
+}
+
+void SSLv23_method(void) { }
+
+void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, void *cb) { }
+
+void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 
+{ 
+    key_password = (char *)u;
+}
+
+int SSL_peek(SSL *ssl, void *buf, int num)
+{
+    memcpy(buf, ssl->bm_data, num);
+    return num;
+}
+
+void SSL_set_bio(SSL *ssl, void *rbio, void *wbio) { }
+
+long SSL_get_verify_result(const SSL *ssl)
+{
+    return ssl_handshake_status(ssl);
+}
+
+int SSL_state(SSL *ssl)
+{
+    return 0x03; // ok state
+}
+
+/** end of could do better list */
+
+void *SSL_get_peer_certificate(const SSL *ssl)
+{
+    return &ssl->ssl_ctx->certs[0];
+}
+
+int SSL_clear(SSL *ssl)
+{
+    return 1;
+}
+
+
+int SSL_CTX_check_private_key(const SSL_CTX *ctx)
+{
+    return 1;
+}
+
+int SSL_CTX_set_cipher_list(SSL *s, const char *str)
+{
+    return 1;
+}
+
+int SSL_get_error(const SSL *ssl, int ret)
+{
+    ssl_display_error(ret);
+    return 0;   /* TODO: return proper return code */
+}
+
+void SSL_CTX_set_options(SSL_CTX *ssl_ctx, int option) {}
+int SSL_library_init(void ) { return 1; }
+void SSL_load_error_strings(void ) {}
+void ERR_print_errors_fp(FILE *fp) {}
+
+#ifndef CONFIG_SSL_SKELETON_MODE
+long SSL_CTX_get_timeout(const SSL_CTX *ssl_ctx) { 
+                            return CONFIG_SSL_EXPIRY_TIME*3600; }
+long SSL_CTX_set_timeout(SSL_CTX *ssl_ctx, long t) { 
+                            return SSL_CTX_get_timeout(ssl_ctx); }
+#endif
+void BIO_printf(FILE *f, const char *format, ...)
+{
+    va_list(ap);
+    va_start(ap, format);
+    vfprintf(f, format, ap);
+    va_end(ap);
+}
+
+void* BIO_s_null(void) { return NULL; }
+FILE *BIO_new(bio_func_type_t func)
+{
+    if (func == BIO_s_null)
+        return fopen("/dev/null", "r");
+    else
+        return NULL;
+}
+
+FILE *BIO_new_fp(FILE *stream, int close_flag) { return stream; }
+int BIO_free(FILE *a) { if (a != stdout && a != stderr) fclose(a); return 1; }
+
+
+
+#endif