Azure IoT / azure_c_shared_utility

Azure IoT common library

Dependents:   STM32F746_iothub_client_sample_mqtt f767zi_mqtt iothub_client_sample_amqp iothub_client_sample_http ... more

tlsio_wolfssl.c@21:b92006c5b9ff, 2017-02-24 (annotated)

Committer:
AzureIoTClient
Date:
Fri Feb 24 14:01:41 2017 -0800
Revision:
21:b92006c5b9ff
Parent:
19:2e0811512ceb
Child:
22:10640b226104
1.1.8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:fa2de1b79154 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:fa2de1b79154 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:fa2de1b79154 3
Azure.IoT Build 0:fa2de1b79154 4 #include <stdlib.h>
Azure.IoT Build 0:fa2de1b79154 5 #include "wolfssl/ssl.h"
Azure.IoT Build 0:fa2de1b79154 6 #include "wolfssl/error-ssl.h"
Azure.IoT Build 0:fa2de1b79154 7 #include <stdio.h>
Azure.IoT Build 0:fa2de1b79154 8 #include <stdbool.h>
Azure.IoT Build 0:fa2de1b79154 9 #include <string.h>
Azure.IoT Build 0:fa2de1b79154 10 #include "azure_c_shared_utility/tlsio.h"
Azure.IoT Build 0:fa2de1b79154 11 #include "azure_c_shared_utility/tlsio_wolfssl.h"
Azure.IoT Build 0:fa2de1b79154 12 #include "azure_c_shared_utility/socketio.h"
Azure.IoT Build 6:c55b013dfc2a 13 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 21:b92006c5b9ff 14 #include "azure_c_shared_utility/optimize_size.h"
Azure.IoT Build 6:c55b013dfc2a 15 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 15:956c6d205aa7 16 #include "azure_c_shared_utility/shared_util_options.h"
AzureIoTClient 15:956c6d205aa7 17
Azure.IoT Build 0:fa2de1b79154 18
Azure.IoT Build 0:fa2de1b79154 19 typedef enum TLSIO_STATE_ENUM_TAG
Azure.IoT Build 0:fa2de1b79154 20 {
Azure.IoT Build 0:fa2de1b79154 21 TLSIO_STATE_NOT_OPEN,
Azure.IoT Build 0:fa2de1b79154 22 TLSIO_STATE_OPENING_UNDERLYING_IO,
Azure.IoT Build 0:fa2de1b79154 23 TLSIO_STATE_IN_HANDSHAKE,
Azure.IoT Build 0:fa2de1b79154 24 TLSIO_STATE_OPEN,
Azure.IoT Build 0:fa2de1b79154 25 TLSIO_STATE_CLOSING,
Azure.IoT Build 0:fa2de1b79154 26 TLSIO_STATE_ERROR
Azure.IoT Build 0:fa2de1b79154 27 } TLSIO_STATE_ENUM;
Azure.IoT Build 0:fa2de1b79154 28
Azure.IoT Build 0:fa2de1b79154 29 typedef struct TLS_IO_INSTANCE_TAG
Azure.IoT Build 0:fa2de1b79154 30 {
Azure.IoT Build 0:fa2de1b79154 31 XIO_HANDLE socket_io;
Azure.IoT Build 0:fa2de1b79154 32 ON_BYTES_RECEIVED on_bytes_received;
Azure.IoT Build 0:fa2de1b79154 33 ON_IO_OPEN_COMPLETE on_io_open_complete;
Azure.IoT Build 0:fa2de1b79154 34 ON_IO_CLOSE_COMPLETE on_io_close_complete;
Azure.IoT Build 0:fa2de1b79154 35 ON_IO_ERROR on_io_error;
Azure.IoT Build 0:fa2de1b79154 36 void* on_bytes_received_context;
Azure.IoT Build 0:fa2de1b79154 37 void* on_io_open_complete_context;
Azure.IoT Build 0:fa2de1b79154 38 void* on_io_close_complete_context;
Azure.IoT Build 0:fa2de1b79154 39 void* on_io_error_context;
Azure.IoT Build 0:fa2de1b79154 40 WOLFSSL* ssl;
Azure.IoT Build 0:fa2de1b79154 41 WOLFSSL_CTX* ssl_context;
Azure.IoT Build 0:fa2de1b79154 42 TLSIO_STATE_ENUM tlsio_state;
Azure.IoT Build 0:fa2de1b79154 43 unsigned char* socket_io_read_bytes;
Azure.IoT Build 0:fa2de1b79154 44 size_t socket_io_read_byte_count;
Azure.IoT Build 0:fa2de1b79154 45 ON_SEND_COMPLETE on_send_complete;
Azure.IoT Build 0:fa2de1b79154 46 void* on_send_complete_callback_context;
Azure.IoT Build 6:c55b013dfc2a 47 char* certificate;
AzureIoTClient 15:956c6d205aa7 48 char* x509certificate;
AzureIoTClient 15:956c6d205aa7 49 char* x509privatekey;
Azure.IoT Build 6:c55b013dfc2a 50 char* hostname;
Azure.IoT Build 6:c55b013dfc2a 51 int port;
Azure.IoT Build 0:fa2de1b79154 52 } TLS_IO_INSTANCE;
Azure.IoT Build 0:fa2de1b79154 53
AzureIoTClient 10:1be0bc9a9deb 54 /*this function will clone an option given by name and value*/
AzureIoTClient 10:1be0bc9a9deb 55 static void* tlsio_wolfssl_CloneOption(const char* name, const void* value)
AzureIoTClient 10:1be0bc9a9deb 56 {
AzureIoTClient 10:1be0bc9a9deb 57 void* result;
AzureIoTClient 15:956c6d205aa7 58 if ((name == NULL) || (value == NULL))
AzureIoTClient 10:1be0bc9a9deb 59 {
AzureIoTClient 15:956c6d205aa7 60 LogError("invalid parameter detected: const char* name=%p, const void* value=%p", name, value);
AzureIoTClient 10:1be0bc9a9deb 61 result = NULL;
AzureIoTClient 10:1be0bc9a9deb 62 }
AzureIoTClient 10:1be0bc9a9deb 63 else
AzureIoTClient 10:1be0bc9a9deb 64 {
AzureIoTClient 10:1be0bc9a9deb 65 if (strcmp(name, "TrustedCerts") == 0)
AzureIoTClient 10:1be0bc9a9deb 66 {
AzureIoTClient 10:1be0bc9a9deb 67 if (mallocAndStrcpy_s((char**)&result, value) != 0)
AzureIoTClient 10:1be0bc9a9deb 68 {
AzureIoTClient 15:956c6d205aa7 69 LogError("unable to mallocAndStrcpy_s TrustedCerts value");
AzureIoTClient 15:956c6d205aa7 70 result = NULL;
AzureIoTClient 15:956c6d205aa7 71 }
AzureIoTClient 15:956c6d205aa7 72 else
AzureIoTClient 15:956c6d205aa7 73 {
AzureIoTClient 15:956c6d205aa7 74 /*return as is*/
AzureIoTClient 15:956c6d205aa7 75 }
AzureIoTClient 15:956c6d205aa7 76 }
AzureIoTClient 15:956c6d205aa7 77 else if (strcmp(name, SU_OPTION_X509_CERT) == 0)
AzureIoTClient 15:956c6d205aa7 78 {
AzureIoTClient 15:956c6d205aa7 79 if (mallocAndStrcpy_s((char**)&result, value) != 0)
AzureIoTClient 15:956c6d205aa7 80 {
AzureIoTClient 15:956c6d205aa7 81 LogError("unable to mallocAndStrcpy_s x509certificate value");
AzureIoTClient 15:956c6d205aa7 82 result = NULL;
AzureIoTClient 15:956c6d205aa7 83 }
AzureIoTClient 15:956c6d205aa7 84 else
AzureIoTClient 15:956c6d205aa7 85 {
AzureIoTClient 15:956c6d205aa7 86 /*return as is*/
AzureIoTClient 15:956c6d205aa7 87 }
AzureIoTClient 15:956c6d205aa7 88 }
AzureIoTClient 15:956c6d205aa7 89 else if (strcmp(name, SU_OPTION_X509_PRIVATE_KEY) == 0)
AzureIoTClient 15:956c6d205aa7 90 {
AzureIoTClient 15:956c6d205aa7 91 if (mallocAndStrcpy_s((char**)&result, value) != 0)
AzureIoTClient 15:956c6d205aa7 92 {
AzureIoTClient 15:956c6d205aa7 93 LogError("unable to mallocAndStrcpy_s x509privatekey value");
AzureIoTClient 10:1be0bc9a9deb 94 result = NULL;
AzureIoTClient 10:1be0bc9a9deb 95 }
AzureIoTClient 10:1be0bc9a9deb 96 else
AzureIoTClient 10:1be0bc9a9deb 97 {
AzureIoTClient 10:1be0bc9a9deb 98 /*return as is*/
AzureIoTClient 10:1be0bc9a9deb 99 }
AzureIoTClient 10:1be0bc9a9deb 100 }
AzureIoTClient 10:1be0bc9a9deb 101 else
AzureIoTClient 10:1be0bc9a9deb 102 {
AzureIoTClient 15:956c6d205aa7 103 LogError("not handled option : %s", name);
AzureIoTClient 10:1be0bc9a9deb 104 result = NULL;
AzureIoTClient 10:1be0bc9a9deb 105 }
AzureIoTClient 10:1be0bc9a9deb 106 }
AzureIoTClient 10:1be0bc9a9deb 107 return result;
AzureIoTClient 10:1be0bc9a9deb 108 }
AzureIoTClient 10:1be0bc9a9deb 109
AzureIoTClient 10:1be0bc9a9deb 110 /*this function destroys an option previously created*/
AzureIoTClient 10:1be0bc9a9deb 111 static void tlsio_wolfssl_DestroyOption(const char* name, const void* value)
AzureIoTClient 10:1be0bc9a9deb 112 {
AzureIoTClient 10:1be0bc9a9deb 113 /*since all options for this layer are actually string copies., disposing of one is just calling free*/
AzureIoTClient 15:956c6d205aa7 114 if ((name == NULL) || (value == NULL))
AzureIoTClient 10:1be0bc9a9deb 115 {
AzureIoTClient 15:956c6d205aa7 116 LogError("invalid parameter detected: const char* name=%p, const void* value=%p", name, value);
AzureIoTClient 15:956c6d205aa7 117 }
AzureIoTClient 15:956c6d205aa7 118 else
AzureIoTClient 15:956c6d205aa7 119 {
AzureIoTClient 15:956c6d205aa7 120 if ((strcmp(name, "TrustedCerts") == 0) ||
AzureIoTClient 15:956c6d205aa7 121 (strcmp(name, SU_OPTION_X509_CERT) == 0) ||
AzureIoTClient 15:956c6d205aa7 122 (strcmp(name, SU_OPTION_X509_PRIVATE_KEY) == 0))
AzureIoTClient 10:1be0bc9a9deb 123 {
AzureIoTClient 10:1be0bc9a9deb 124 free((void*)value);
AzureIoTClient 10:1be0bc9a9deb 125 }
AzureIoTClient 10:1be0bc9a9deb 126 else
AzureIoTClient 10:1be0bc9a9deb 127 {
AzureIoTClient 15:956c6d205aa7 128 LogError("not handled option : %s", name);
AzureIoTClient 10:1be0bc9a9deb 129 }
AzureIoTClient 10:1be0bc9a9deb 130 }
AzureIoTClient 10:1be0bc9a9deb 131 }
AzureIoTClient 10:1be0bc9a9deb 132
AzureIoTClient 10:1be0bc9a9deb 133 static OPTIONHANDLER_HANDLE tlsio_wolfssl_retrieveoptions(CONCRETE_IO_HANDLE tls_io)
AzureIoTClient 10:1be0bc9a9deb 134 {
AzureIoTClient 10:1be0bc9a9deb 135 OPTIONHANDLER_HANDLE result;
AzureIoTClient 19:2e0811512ceb 136 if (tls_io == NULL)
AzureIoTClient 10:1be0bc9a9deb 137 {
AzureIoTClient 19:2e0811512ceb 138 LogError("NULL tls_io parameter");
AzureIoTClient 19:2e0811512ceb 139 result = NULL;
AzureIoTClient 10:1be0bc9a9deb 140 }
AzureIoTClient 10:1be0bc9a9deb 141 else
AzureIoTClient 10:1be0bc9a9deb 142 {
AzureIoTClient 19:2e0811512ceb 143 result = OptionHandler_Create(tlsio_wolfssl_CloneOption, tlsio_wolfssl_DestroyOption, tlsio_wolfssl_setoption);
AzureIoTClient 19:2e0811512ceb 144 if (result == NULL)
AzureIoTClient 19:2e0811512ceb 145 {
AzureIoTClient 19:2e0811512ceb 146 LogError("unable to OptionHandler_Create");
AzureIoTClient 19:2e0811512ceb 147 /*return as is*/
AzureIoTClient 19:2e0811512ceb 148 }
AzureIoTClient 19:2e0811512ceb 149 else
AzureIoTClient 19:2e0811512ceb 150 {
AzureIoTClient 19:2e0811512ceb 151 /*this layer cares about the certificates and the x509 credentials*/
AzureIoTClient 19:2e0811512ceb 152 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
AzureIoTClient 19:2e0811512ceb 153 if (
AzureIoTClient 19:2e0811512ceb 154 (tls_io_instance->x509certificate != NULL) &&
AzureIoTClient 19:2e0811512ceb 155 (OptionHandler_AddOption(result, SU_OPTION_X509_CERT, tls_io_instance->x509certificate) != 0)
AzureIoTClient 19:2e0811512ceb 156 )
AzureIoTClient 19:2e0811512ceb 157 {
AzureIoTClient 19:2e0811512ceb 158 LogError("unable to save x509certificate option");
AzureIoTClient 19:2e0811512ceb 159 OptionHandler_Destroy(result);
AzureIoTClient 19:2e0811512ceb 160 result = NULL;
AzureIoTClient 19:2e0811512ceb 161 }
AzureIoTClient 19:2e0811512ceb 162 else if (
AzureIoTClient 19:2e0811512ceb 163 (tls_io_instance->x509privatekey != NULL) &&
AzureIoTClient 19:2e0811512ceb 164 (OptionHandler_AddOption(result, SU_OPTION_X509_PRIVATE_KEY, tls_io_instance->x509privatekey) != 0)
AzureIoTClient 19:2e0811512ceb 165 )
AzureIoTClient 19:2e0811512ceb 166 {
AzureIoTClient 19:2e0811512ceb 167 LogError("unable to save x509privatekey option");
AzureIoTClient 19:2e0811512ceb 168 OptionHandler_Destroy(result);
AzureIoTClient 19:2e0811512ceb 169 result = NULL;
AzureIoTClient 19:2e0811512ceb 170 }
AzureIoTClient 19:2e0811512ceb 171 else if (
AzureIoTClient 19:2e0811512ceb 172 (tls_io_instance->x509privatekey != NULL) &&
AzureIoTClient 19:2e0811512ceb 173 (OptionHandler_AddOption(result, "TrustedCerts", tls_io_instance->certificate) != 0)
AzureIoTClient 19:2e0811512ceb 174 )
AzureIoTClient 19:2e0811512ceb 175 {
AzureIoTClient 19:2e0811512ceb 176 LogError("unable to save TrustedCerts option");
AzureIoTClient 19:2e0811512ceb 177 OptionHandler_Destroy(result);
AzureIoTClient 19:2e0811512ceb 178 result = NULL;
AzureIoTClient 19:2e0811512ceb 179 }
AzureIoTClient 19:2e0811512ceb 180 else
AzureIoTClient 19:2e0811512ceb 181 {
AzureIoTClient 19:2e0811512ceb 182 /*all is fine, all interesting options have been saved*/
AzureIoTClient 19:2e0811512ceb 183 /*return as is*/
AzureIoTClient 19:2e0811512ceb 184 }
AzureIoTClient 19:2e0811512ceb 185 }
AzureIoTClient 10:1be0bc9a9deb 186 }
AzureIoTClient 19:2e0811512ceb 187
AzureIoTClient 10:1be0bc9a9deb 188 return result;
AzureIoTClient 10:1be0bc9a9deb 189 }
AzureIoTClient 10:1be0bc9a9deb 190
Azure.IoT Build 0:fa2de1b79154 191 static const IO_INTERFACE_DESCRIPTION tlsio_wolfssl_interface_description =
Azure.IoT Build 0:fa2de1b79154 192 {
AzureIoTClient 10:1be0bc9a9deb 193 tlsio_wolfssl_retrieveoptions,
Azure.IoT Build 0:fa2de1b79154 194 tlsio_wolfssl_create,
Azure.IoT Build 0:fa2de1b79154 195 tlsio_wolfssl_destroy,
Azure.IoT Build 0:fa2de1b79154 196 tlsio_wolfssl_open,
Azure.IoT Build 0:fa2de1b79154 197 tlsio_wolfssl_close,
Azure.IoT Build 0:fa2de1b79154 198 tlsio_wolfssl_send,
Azure.IoT Build 0:fa2de1b79154 199 tlsio_wolfssl_dowork,
Azure.IoT Build 0:fa2de1b79154 200 tlsio_wolfssl_setoption
Azure.IoT Build 0:fa2de1b79154 201 };
Azure.IoT Build 0:fa2de1b79154 202
Azure.IoT Build 0:fa2de1b79154 203 static void indicate_error(TLS_IO_INSTANCE* tls_io_instance)
Azure.IoT Build 0:fa2de1b79154 204 {
Azure.IoT Build 0:fa2de1b79154 205 if (tls_io_instance->on_io_error != NULL)
Azure.IoT Build 0:fa2de1b79154 206 {
Azure.IoT Build 0:fa2de1b79154 207 tls_io_instance->on_io_error(tls_io_instance->on_io_error_context);
Azure.IoT Build 0:fa2de1b79154 208 }
Azure.IoT Build 0:fa2de1b79154 209 }
Azure.IoT Build 0:fa2de1b79154 210
Azure.IoT Build 0:fa2de1b79154 211 static void indicate_open_complete(TLS_IO_INSTANCE* tls_io_instance, IO_OPEN_RESULT open_result)
Azure.IoT Build 0:fa2de1b79154 212 {
Azure.IoT Build 0:fa2de1b79154 213 if (tls_io_instance->on_io_open_complete != NULL)
Azure.IoT Build 0:fa2de1b79154 214 {
Azure.IoT Build 0:fa2de1b79154 215 tls_io_instance->on_io_open_complete(tls_io_instance->on_io_open_complete_context, open_result);
Azure.IoT Build 0:fa2de1b79154 216 }
Azure.IoT Build 0:fa2de1b79154 217 }
Azure.IoT Build 0:fa2de1b79154 218
Azure.IoT Build 0:fa2de1b79154 219 static int decode_ssl_received_bytes(TLS_IO_INSTANCE* tls_io_instance)
Azure.IoT Build 0:fa2de1b79154 220 {
Azure.IoT Build 0:fa2de1b79154 221 int result = 0;
Azure.IoT Build 0:fa2de1b79154 222 unsigned char buffer[64];
Azure.IoT Build 0:fa2de1b79154 223
Azure.IoT Build 0:fa2de1b79154 224 int rcv_bytes = 1;
Azure.IoT Build 0:fa2de1b79154 225 while (rcv_bytes > 0)
Azure.IoT Build 0:fa2de1b79154 226 {
Azure.IoT Build 0:fa2de1b79154 227 rcv_bytes = wolfSSL_read(tls_io_instance->ssl, buffer, sizeof(buffer));
Azure.IoT Build 0:fa2de1b79154 228 if (rcv_bytes > 0)
Azure.IoT Build 0:fa2de1b79154 229 {
Azure.IoT Build 0:fa2de1b79154 230 if (tls_io_instance->on_bytes_received != NULL)
Azure.IoT Build 0:fa2de1b79154 231 {
Azure.IoT Build 0:fa2de1b79154 232 tls_io_instance->on_bytes_received(tls_io_instance->on_bytes_received_context, buffer, rcv_bytes);
Azure.IoT Build 0:fa2de1b79154 233 }
Azure.IoT Build 0:fa2de1b79154 234 }
Azure.IoT Build 0:fa2de1b79154 235 }
Azure.IoT Build 0:fa2de1b79154 236
Azure.IoT Build 0:fa2de1b79154 237 return result;
Azure.IoT Build 0:fa2de1b79154 238 }
Azure.IoT Build 0:fa2de1b79154 239
Azure.IoT Build 0:fa2de1b79154 240 static void on_underlying_io_open_complete(void* context, IO_OPEN_RESULT open_result)
Azure.IoT Build 0:fa2de1b79154 241 {
Azure.IoT Build 0:fa2de1b79154 242 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 243
Azure.IoT Build 0:fa2de1b79154 244 if (open_result != IO_OPEN_OK)
Azure.IoT Build 0:fa2de1b79154 245 {
AzureIoTClient 19:2e0811512ceb 246 LogError("Underlying IO open failed");
Azure.IoT Build 0:fa2de1b79154 247 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
Azure.IoT Build 0:fa2de1b79154 248 indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
Azure.IoT Build 0:fa2de1b79154 249 }
Azure.IoT Build 0:fa2de1b79154 250 else
Azure.IoT Build 0:fa2de1b79154 251 {
Azure.IoT Build 0:fa2de1b79154 252 int res;
Azure.IoT Build 0:fa2de1b79154 253 tls_io_instance->tlsio_state = TLSIO_STATE_IN_HANDSHAKE;
Azure.IoT Build 0:fa2de1b79154 254
Azure.IoT Build 0:fa2de1b79154 255 res = wolfSSL_connect(tls_io_instance->ssl);
Azure.IoT Build 0:fa2de1b79154 256 if (res != SSL_SUCCESS)
Azure.IoT Build 0:fa2de1b79154 257 {
AzureIoTClient 19:2e0811512ceb 258 LogError("WolfSSL connect failed");
Azure.IoT Build 0:fa2de1b79154 259 indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
Azure.IoT Build 6:c55b013dfc2a 260 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
Azure.IoT Build 0:fa2de1b79154 261 }
Azure.IoT Build 0:fa2de1b79154 262 }
Azure.IoT Build 0:fa2de1b79154 263 }
Azure.IoT Build 0:fa2de1b79154 264
Azure.IoT Build 0:fa2de1b79154 265 static void on_underlying_io_bytes_received(void* context, const unsigned char* buffer, size_t size)
Azure.IoT Build 0:fa2de1b79154 266 {
Azure.IoT Build 0:fa2de1b79154 267 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 268
Azure.IoT Build 0:fa2de1b79154 269 unsigned char* new_socket_io_read_bytes = (unsigned char*)realloc(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_byte_count + size);
Azure.IoT Build 0:fa2de1b79154 270 if (new_socket_io_read_bytes == NULL)
Azure.IoT Build 0:fa2de1b79154 271 {
AzureIoTClient 19:2e0811512ceb 272 LogError("Failed allocating memory for received bytes");
Azure.IoT Build 0:fa2de1b79154 273 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
Azure.IoT Build 0:fa2de1b79154 274 indicate_error(tls_io_instance);
Azure.IoT Build 0:fa2de1b79154 275 }
Azure.IoT Build 0:fa2de1b79154 276 else
Azure.IoT Build 0:fa2de1b79154 277 {
Azure.IoT Build 0:fa2de1b79154 278 tls_io_instance->socket_io_read_bytes = new_socket_io_read_bytes;
Azure.IoT Build 0:fa2de1b79154 279 (void)memcpy(tls_io_instance->socket_io_read_bytes + tls_io_instance->socket_io_read_byte_count, buffer, size);
Azure.IoT Build 0:fa2de1b79154 280 tls_io_instance->socket_io_read_byte_count += size;
Azure.IoT Build 0:fa2de1b79154 281 }
Azure.IoT Build 0:fa2de1b79154 282 }
Azure.IoT Build 0:fa2de1b79154 283
Azure.IoT Build 0:fa2de1b79154 284 static void on_underlying_io_error(void* context)
Azure.IoT Build 0:fa2de1b79154 285 {
Azure.IoT Build 0:fa2de1b79154 286 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 287
Azure.IoT Build 0:fa2de1b79154 288 switch (tls_io_instance->tlsio_state)
Azure.IoT Build 0:fa2de1b79154 289 {
AzureIoTClient 15:956c6d205aa7 290 default:
AzureIoTClient 19:2e0811512ceb 291 LogError("Unknown TLS IO WolfSSL state: %d", (int)tls_io_instance->tlsio_state);
AzureIoTClient 19:2e0811512ceb 292 break;
AzureIoTClient 19:2e0811512ceb 293
AzureIoTClient 15:956c6d205aa7 294 case TLSIO_STATE_NOT_OPEN:
AzureIoTClient 15:956c6d205aa7 295 case TLSIO_STATE_ERROR:
AzureIoTClient 15:956c6d205aa7 296 break;
Azure.IoT Build 0:fa2de1b79154 297
AzureIoTClient 15:956c6d205aa7 298 case TLSIO_STATE_OPENING_UNDERLYING_IO:
AzureIoTClient 15:956c6d205aa7 299 case TLSIO_STATE_IN_HANDSHAKE:
AzureIoTClient 15:956c6d205aa7 300 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
AzureIoTClient 15:956c6d205aa7 301 indicate_open_complete(tls_io_instance, IO_OPEN_ERROR);
AzureIoTClient 15:956c6d205aa7 302 break;
Azure.IoT Build 0:fa2de1b79154 303
AzureIoTClient 15:956c6d205aa7 304 case TLSIO_STATE_OPEN:
AzureIoTClient 15:956c6d205aa7 305 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
AzureIoTClient 15:956c6d205aa7 306 indicate_error(tls_io_instance);
AzureIoTClient 15:956c6d205aa7 307 break;
Azure.IoT Build 0:fa2de1b79154 308 }
Azure.IoT Build 0:fa2de1b79154 309 }
Azure.IoT Build 0:fa2de1b79154 310
Azure.IoT Build 0:fa2de1b79154 311 static void on_underlying_io_close_complete(void* context)
Azure.IoT Build 0:fa2de1b79154 312 {
Azure.IoT Build 0:fa2de1b79154 313 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 314
AzureIoTClient 19:2e0811512ceb 315 if (tls_io_instance->tlsio_state != TLSIO_STATE_CLOSING)
AzureIoTClient 19:2e0811512ceb 316 {
AzureIoTClient 19:2e0811512ceb 317 LogError("on_underlying_io_close_complete called when not in CLOSING state");
AzureIoTClient 19:2e0811512ceb 318 }
AzureIoTClient 19:2e0811512ceb 319 else
Azure.IoT Build 0:fa2de1b79154 320 {
Azure.IoT Build 0:fa2de1b79154 321 if (tls_io_instance->on_io_close_complete != NULL)
Azure.IoT Build 0:fa2de1b79154 322 {
Azure.IoT Build 0:fa2de1b79154 323 tls_io_instance->on_io_close_complete(tls_io_instance->on_io_close_complete_context);
Azure.IoT Build 0:fa2de1b79154 324 }
Azure.IoT Build 6:c55b013dfc2a 325 tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
Azure.IoT Build 0:fa2de1b79154 326 }
Azure.IoT Build 0:fa2de1b79154 327 }
Azure.IoT Build 0:fa2de1b79154 328
Azure.IoT Build 0:fa2de1b79154 329 static int on_io_recv(WOLFSSL *ssl, char *buf, int sz, void *context)
Azure.IoT Build 0:fa2de1b79154 330 {
Azure.IoT Build 0:fa2de1b79154 331 int result;
Azure.IoT Build 0:fa2de1b79154 332 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 333 unsigned char* new_socket_io_read_bytes;
Azure.IoT Build 0:fa2de1b79154 334
AzureIoTClient 15:956c6d205aa7 335 (void)ssl;
Azure.IoT Build 0:fa2de1b79154 336 while (tls_io_instance->socket_io_read_byte_count == 0)
Azure.IoT Build 0:fa2de1b79154 337 {
Azure.IoT Build 0:fa2de1b79154 338 xio_dowork(tls_io_instance->socket_io);
Azure.IoT Build 6:c55b013dfc2a 339 if (tls_io_instance->tlsio_state != TLSIO_STATE_IN_HANDSHAKE)
Azure.IoT Build 0:fa2de1b79154 340 {
Azure.IoT Build 0:fa2de1b79154 341 break;
Azure.IoT Build 0:fa2de1b79154 342 }
Azure.IoT Build 0:fa2de1b79154 343 }
Azure.IoT Build 0:fa2de1b79154 344
Azure.IoT Build 0:fa2de1b79154 345 result = tls_io_instance->socket_io_read_byte_count;
Azure.IoT Build 0:fa2de1b79154 346 if (result > sz)
Azure.IoT Build 0:fa2de1b79154 347 {
Azure.IoT Build 0:fa2de1b79154 348 result = sz;
Azure.IoT Build 0:fa2de1b79154 349 }
Azure.IoT Build 0:fa2de1b79154 350
Azure.IoT Build 0:fa2de1b79154 351 if (result > 0)
Azure.IoT Build 0:fa2de1b79154 352 {
Azure.IoT Build 0:fa2de1b79154 353 (void)memcpy(buf, tls_io_instance->socket_io_read_bytes, result);
Azure.IoT Build 0:fa2de1b79154 354 (void)memmove(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_bytes + result, tls_io_instance->socket_io_read_byte_count - result);
Azure.IoT Build 0:fa2de1b79154 355 tls_io_instance->socket_io_read_byte_count -= result;
Azure.IoT Build 0:fa2de1b79154 356 if (tls_io_instance->socket_io_read_byte_count > 0)
Azure.IoT Build 0:fa2de1b79154 357 {
Azure.IoT Build 0:fa2de1b79154 358 new_socket_io_read_bytes = (unsigned char*)realloc(tls_io_instance->socket_io_read_bytes, tls_io_instance->socket_io_read_byte_count);
Azure.IoT Build 0:fa2de1b79154 359 if (new_socket_io_read_bytes != NULL)
Azure.IoT Build 0:fa2de1b79154 360 {
Azure.IoT Build 0:fa2de1b79154 361 tls_io_instance->socket_io_read_bytes = new_socket_io_read_bytes;
Azure.IoT Build 0:fa2de1b79154 362 }
Azure.IoT Build 0:fa2de1b79154 363 }
Azure.IoT Build 0:fa2de1b79154 364 else
Azure.IoT Build 0:fa2de1b79154 365 {
Azure.IoT Build 0:fa2de1b79154 366 free(tls_io_instance->socket_io_read_bytes);
Azure.IoT Build 0:fa2de1b79154 367 tls_io_instance->socket_io_read_bytes = NULL;
Azure.IoT Build 0:fa2de1b79154 368 }
Azure.IoT Build 0:fa2de1b79154 369 }
Azure.IoT Build 0:fa2de1b79154 370
Azure.IoT Build 0:fa2de1b79154 371 if ((result == 0) && (tls_io_instance->tlsio_state == TLSIO_STATE_OPEN))
Azure.IoT Build 0:fa2de1b79154 372 {
Azure.IoT Build 0:fa2de1b79154 373 result = WOLFSSL_CBIO_ERR_WANT_READ;
Azure.IoT Build 0:fa2de1b79154 374 }
Azure.IoT Build 6:c55b013dfc2a 375 else if ((result == 0) && tls_io_instance->tlsio_state == TLSIO_STATE_CLOSING)
Azure.IoT Build 6:c55b013dfc2a 376 {
Azure.IoT Build 6:c55b013dfc2a 377 result = WOLFSSL_CBIO_ERR_CONN_CLOSE;
Azure.IoT Build 6:c55b013dfc2a 378 }
Azure.IoT Build 0:fa2de1b79154 379
Azure.IoT Build 0:fa2de1b79154 380 return result;
Azure.IoT Build 0:fa2de1b79154 381 }
Azure.IoT Build 0:fa2de1b79154 382
Azure.IoT Build 0:fa2de1b79154 383 static int on_io_send(WOLFSSL *ssl, char *buf, int sz, void *context)
Azure.IoT Build 0:fa2de1b79154 384 {
Azure.IoT Build 0:fa2de1b79154 385 int result;
Azure.IoT Build 0:fa2de1b79154 386 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
Azure.IoT Build 0:fa2de1b79154 387
AzureIoTClient 15:956c6d205aa7 388 (void)ssl;
Azure.IoT Build 0:fa2de1b79154 389 if (xio_send(tls_io_instance->socket_io, buf, sz, tls_io_instance->on_send_complete, tls_io_instance->on_send_complete_callback_context) != 0)
Azure.IoT Build 0:fa2de1b79154 390 {
AzureIoTClient 19:2e0811512ceb 391 LogError("Failed sending bytes through underlying IO");
Azure.IoT Build 0:fa2de1b79154 392 tls_io_instance->tlsio_state = TLSIO_STATE_ERROR;
Azure.IoT Build 0:fa2de1b79154 393 indicate_error(tls_io_instance);
Azure.IoT Build 0:fa2de1b79154 394 result = 0;
Azure.IoT Build 0:fa2de1b79154 395 }
Azure.IoT Build 0:fa2de1b79154 396 else
Azure.IoT Build 0:fa2de1b79154 397 {
Azure.IoT Build 0:fa2de1b79154 398 result = sz;
Azure.IoT Build 0:fa2de1b79154 399 }
Azure.IoT Build 0:fa2de1b79154 400
Azure.IoT Build 0:fa2de1b79154 401 return result;
Azure.IoT Build 0:fa2de1b79154 402 }
Azure.IoT Build 0:fa2de1b79154 403
Azure.IoT Build 0:fa2de1b79154 404 static int on_handshake_done(WOLFSSL* ssl, void* context)
Azure.IoT Build 0:fa2de1b79154 405 {
Azure.IoT Build 0:fa2de1b79154 406 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)context;
AzureIoTClient 15:956c6d205aa7 407 (void)ssl;
AzureIoTClient 19:2e0811512ceb 408 if (tls_io_instance->tlsio_state != TLSIO_STATE_IN_HANDSHAKE)
AzureIoTClient 19:2e0811512ceb 409 {
AzureIoTClient 19:2e0811512ceb 410 LogInfo("on_handshake_done called when not in IN_HANDSHAKE state");
AzureIoTClient 19:2e0811512ceb 411 }
AzureIoTClient 19:2e0811512ceb 412 else
Azure.IoT Build 0:fa2de1b79154 413 {
Azure.IoT Build 0:fa2de1b79154 414 tls_io_instance->tlsio_state = TLSIO_STATE_OPEN;
Azure.IoT Build 0:fa2de1b79154 415 indicate_open_complete(tls_io_instance, IO_OPEN_OK);
Azure.IoT Build 0:fa2de1b79154 416 }
Azure.IoT Build 0:fa2de1b79154 417
Azure.IoT Build 0:fa2de1b79154 418 return 0;
Azure.IoT Build 0:fa2de1b79154 419 }
Azure.IoT Build 0:fa2de1b79154 420
Azure.IoT Build 6:c55b013dfc2a 421 static int add_certificate_to_store(TLS_IO_INSTANCE* tls_io_instance)
Azure.IoT Build 6:c55b013dfc2a 422 {
Azure.IoT Build 6:c55b013dfc2a 423 int result;
Azure.IoT Build 6:c55b013dfc2a 424 if (tls_io_instance->certificate != NULL)
Azure.IoT Build 6:c55b013dfc2a 425 {
AzureIoTClient 15:956c6d205aa7 426 int res = wolfSSL_CTX_load_verify_buffer(tls_io_instance->ssl_context, (const unsigned char*)tls_io_instance->certificate, strlen(tls_io_instance->certificate) + 1, SSL_FILETYPE_PEM);
Azure.IoT Build 6:c55b013dfc2a 427 if (res != SSL_SUCCESS)
Azure.IoT Build 6:c55b013dfc2a 428 {
AzureIoTClient 19:2e0811512ceb 429 LogError("wolfSSL_CTX_load_verify_buffer failed");
AzureIoTClient 21:b92006c5b9ff 430 result = __FAILURE__;
Azure.IoT Build 6:c55b013dfc2a 431 }
Azure.IoT Build 6:c55b013dfc2a 432 else
Azure.IoT Build 6:c55b013dfc2a 433 {
Azure.IoT Build 6:c55b013dfc2a 434 result = 0;
Azure.IoT Build 6:c55b013dfc2a 435 }
Azure.IoT Build 6:c55b013dfc2a 436 }
Azure.IoT Build 6:c55b013dfc2a 437 else
Azure.IoT Build 6:c55b013dfc2a 438 {
Azure.IoT Build 6:c55b013dfc2a 439 result = 0;
Azure.IoT Build 6:c55b013dfc2a 440 }
Azure.IoT Build 6:c55b013dfc2a 441 return result;
Azure.IoT Build 6:c55b013dfc2a 442 }
Azure.IoT Build 6:c55b013dfc2a 443
AzureIoTClient 15:956c6d205aa7 444 static int x509_wolfssl_add_credentials(WOLFSSL* ssl, char* x509certificate, char* x509privatekey) {
AzureIoTClient 15:956c6d205aa7 445
AzureIoTClient 15:956c6d205aa7 446 int result;
AzureIoTClient 15:956c6d205aa7 447
AzureIoTClient 15:956c6d205aa7 448 if (wolfSSL_use_certificate_buffer(ssl, (unsigned char*)x509certificate, strlen(x509certificate) + 1, SSL_FILETYPE_PEM) != SSL_SUCCESS)
AzureIoTClient 15:956c6d205aa7 449 {
AzureIoTClient 15:956c6d205aa7 450 LogError("unable to load x509 client certificate");
AzureIoTClient 21:b92006c5b9ff 451 result = __FAILURE__;
AzureIoTClient 15:956c6d205aa7 452 }
AzureIoTClient 15:956c6d205aa7 453 else if (wolfSSL_use_PrivateKey_buffer(ssl, (unsigned char*)x509privatekey, strlen(x509privatekey) + 1, SSL_FILETYPE_PEM) != SSL_SUCCESS)
AzureIoTClient 15:956c6d205aa7 454 {
AzureIoTClient 15:956c6d205aa7 455 LogError("unable to load x509 client private key");
AzureIoTClient 21:b92006c5b9ff 456 result = __FAILURE__;
AzureIoTClient 15:956c6d205aa7 457 }
AzureIoTClient 15:956c6d205aa7 458 #ifdef HAVE_SECURE_RENEGOTIATION
AzureIoTClient 19:2e0811512ceb 459 else if (wolfSSL_UseSecureRenegotiation(ssl) != SSL_SUCCESS)
AzureIoTClient 19:2e0811512ceb 460 {
AzureIoTClient 15:956c6d205aa7 461 LogError("unable to enable secure renegotiation");
AzureIoTClient 21:b92006c5b9ff 462 result = __FAILURE__;
AzureIoTClient 15:956c6d205aa7 463 }
AzureIoTClient 15:956c6d205aa7 464 #endif
AzureIoTClient 15:956c6d205aa7 465 else
AzureIoTClient 15:956c6d205aa7 466 {
AzureIoTClient 15:956c6d205aa7 467 result = 0;
AzureIoTClient 15:956c6d205aa7 468 }
AzureIoTClient 15:956c6d205aa7 469 return result;
AzureIoTClient 15:956c6d205aa7 470 }
AzureIoTClient 15:956c6d205aa7 471
AzureIoTClient 15:956c6d205aa7 472 static void destroy_wolfssl_instance(TLS_IO_INSTANCE* tls_io_instance)
AzureIoTClient 15:956c6d205aa7 473 {
AzureIoTClient 15:956c6d205aa7 474 wolfSSL_free(tls_io_instance->ssl);
AzureIoTClient 15:956c6d205aa7 475 }
AzureIoTClient 15:956c6d205aa7 476
Azure.IoT Build 6:c55b013dfc2a 477 static int create_wolfssl_instance(TLS_IO_INSTANCE* tls_io_instance)
Azure.IoT Build 6:c55b013dfc2a 478 {
Azure.IoT Build 6:c55b013dfc2a 479 int result;
Azure.IoT Build 6:c55b013dfc2a 480
Azure.IoT Build 6:c55b013dfc2a 481 if (add_certificate_to_store(tls_io_instance) != 0)
Azure.IoT Build 6:c55b013dfc2a 482 {
AzureIoTClient 19:2e0811512ceb 483 LogError("Failed to add certificates to store");
AzureIoTClient 21:b92006c5b9ff 484 result = __FAILURE__;
Azure.IoT Build 6:c55b013dfc2a 485 }
Azure.IoT Build 6:c55b013dfc2a 486 else
Azure.IoT Build 6:c55b013dfc2a 487 {
Azure.IoT Build 6:c55b013dfc2a 488 tls_io_instance->ssl = wolfSSL_new(tls_io_instance->ssl_context);
Azure.IoT Build 6:c55b013dfc2a 489 if (tls_io_instance->ssl == NULL)
Azure.IoT Build 6:c55b013dfc2a 490 {
AzureIoTClient 19:2e0811512ceb 491 LogError("Failed to add certificates to store");
AzureIoTClient 21:b92006c5b9ff 492 result = __FAILURE__;
Azure.IoT Build 6:c55b013dfc2a 493 }
AzureIoTClient 15:956c6d205aa7 494 /*x509 authentication can only be build before underlying connection is realized*/
AzureIoTClient 15:956c6d205aa7 495 else if ((tls_io_instance->x509certificate != NULL) &&
AzureIoTClient 15:956c6d205aa7 496 (tls_io_instance->x509privatekey != NULL) &&
AzureIoTClient 15:956c6d205aa7 497 (x509_wolfssl_add_credentials(tls_io_instance->ssl, tls_io_instance->x509certificate, tls_io_instance->x509privatekey) != 0))
AzureIoTClient 15:956c6d205aa7 498 {
AzureIoTClient 15:956c6d205aa7 499 destroy_wolfssl_instance(tls_io_instance);
AzureIoTClient 15:956c6d205aa7 500 LogError("unable to use x509 authentication");
AzureIoTClient 21:b92006c5b9ff 501 result = __FAILURE__;
AzureIoTClient 15:956c6d205aa7 502 }
Azure.IoT Build 6:c55b013dfc2a 503 else
Azure.IoT Build 6:c55b013dfc2a 504 {
Azure.IoT Build 6:c55b013dfc2a 505 tls_io_instance->socket_io_read_bytes = NULL;
Azure.IoT Build 6:c55b013dfc2a 506 tls_io_instance->socket_io_read_byte_count = 0;
Azure.IoT Build 6:c55b013dfc2a 507 tls_io_instance->on_send_complete = NULL;
Azure.IoT Build 6:c55b013dfc2a 508 tls_io_instance->on_send_complete_callback_context = NULL;
Azure.IoT Build 6:c55b013dfc2a 509
Azure.IoT Build 6:c55b013dfc2a 510 wolfSSL_set_using_nonblock(tls_io_instance->ssl, 1);
Azure.IoT Build 6:c55b013dfc2a 511 wolfSSL_SetIOSend(tls_io_instance->ssl_context, on_io_send);
Azure.IoT Build 6:c55b013dfc2a 512 wolfSSL_SetIORecv(tls_io_instance->ssl_context, on_io_recv);
Azure.IoT Build 6:c55b013dfc2a 513 wolfSSL_SetHsDoneCb(tls_io_instance->ssl, on_handshake_done, tls_io_instance);
Azure.IoT Build 6:c55b013dfc2a 514 wolfSSL_SetIOWriteCtx(tls_io_instance->ssl, tls_io_instance);
Azure.IoT Build 6:c55b013dfc2a 515 wolfSSL_SetIOReadCtx(tls_io_instance->ssl, tls_io_instance);
Azure.IoT Build 6:c55b013dfc2a 516
Azure.IoT Build 6:c55b013dfc2a 517 tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
Azure.IoT Build 6:c55b013dfc2a 518 result = 0;
Azure.IoT Build 6:c55b013dfc2a 519 }
Azure.IoT Build 6:c55b013dfc2a 520 }
AzureIoTClient 19:2e0811512ceb 521
Azure.IoT Build 6:c55b013dfc2a 522 return result;
Azure.IoT Build 6:c55b013dfc2a 523 }
Azure.IoT Build 6:c55b013dfc2a 524
Azure.IoT Build 0:fa2de1b79154 525 int tlsio_wolfssl_init(void)
Azure.IoT Build 0:fa2de1b79154 526 {
Azure.IoT Build 0:fa2de1b79154 527 (void)wolfSSL_library_init();
Azure.IoT Build 0:fa2de1b79154 528 wolfSSL_load_error_strings();
Azure.IoT Build 0:fa2de1b79154 529
Azure.IoT Build 0:fa2de1b79154 530 return 0;
Azure.IoT Build 0:fa2de1b79154 531 }
Azure.IoT Build 0:fa2de1b79154 532
Azure.IoT Build 0:fa2de1b79154 533 void tlsio_wolfssl_deinit(void)
Azure.IoT Build 0:fa2de1b79154 534 {
Azure.IoT Build 0:fa2de1b79154 535 }
Azure.IoT Build 0:fa2de1b79154 536
Azure.IoT Build 6:c55b013dfc2a 537 CONCRETE_IO_HANDLE tlsio_wolfssl_create(void* io_create_parameters)
Azure.IoT Build 0:fa2de1b79154 538 {
Azure.IoT Build 0:fa2de1b79154 539 TLS_IO_INSTANCE* result;
Azure.IoT Build 0:fa2de1b79154 540
AzureIoTClient 19:2e0811512ceb 541 if (io_create_parameters == NULL)
Azure.IoT Build 0:fa2de1b79154 542 {
AzureIoTClient 19:2e0811512ceb 543 LogError("NULL io_create_parameters");
Azure.IoT Build 0:fa2de1b79154 544 result = NULL;
Azure.IoT Build 0:fa2de1b79154 545 }
Azure.IoT Build 0:fa2de1b79154 546 else
Azure.IoT Build 0:fa2de1b79154 547 {
AzureIoTClient 19:2e0811512ceb 548 TLSIO_CONFIG* tls_io_config = io_create_parameters;
AzureIoTClient 19:2e0811512ceb 549
Azure.IoT Build 6:c55b013dfc2a 550 result = (TLS_IO_INSTANCE*)malloc(sizeof(TLS_IO_INSTANCE));
Azure.IoT Build 0:fa2de1b79154 551 if (result != NULL)
Azure.IoT Build 0:fa2de1b79154 552 {
Azure.IoT Build 6:c55b013dfc2a 553 memset(result, 0, sizeof(TLS_IO_INSTANCE));
AzureIoTClient 19:2e0811512ceb 554 if (mallocAndStrcpy_s(&result->hostname, tls_io_config->hostname) != 0)
Azure.IoT Build 0:fa2de1b79154 555 {
AzureIoTClient 19:2e0811512ceb 556 LogError("Cannot copy the hostname");
Azure.IoT Build 0:fa2de1b79154 557 free(result);
Azure.IoT Build 0:fa2de1b79154 558 result = NULL;
Azure.IoT Build 0:fa2de1b79154 559 }
Azure.IoT Build 0:fa2de1b79154 560 else
Azure.IoT Build 0:fa2de1b79154 561 {
AzureIoTClient 19:2e0811512ceb 562 result->port = tls_io_config->port;
AzureIoTClient 19:2e0811512ceb 563
AzureIoTClient 19:2e0811512ceb 564 result->socket_io_read_bytes = 0;
AzureIoTClient 19:2e0811512ceb 565 result->socket_io_read_byte_count = 0;
AzureIoTClient 19:2e0811512ceb 566 result->socket_io = NULL;
AzureIoTClient 19:2e0811512ceb 567
AzureIoTClient 19:2e0811512ceb 568 result->ssl = NULL;
AzureIoTClient 19:2e0811512ceb 569 result->certificate = NULL;
AzureIoTClient 19:2e0811512ceb 570 result->x509certificate = NULL;
AzureIoTClient 19:2e0811512ceb 571 result->x509privatekey = NULL;
AzureIoTClient 19:2e0811512ceb 572
AzureIoTClient 19:2e0811512ceb 573 result->on_bytes_received = NULL;
AzureIoTClient 19:2e0811512ceb 574 result->on_bytes_received_context = NULL;
AzureIoTClient 19:2e0811512ceb 575
AzureIoTClient 19:2e0811512ceb 576 result->on_io_open_complete = NULL;
AzureIoTClient 19:2e0811512ceb 577 result->on_io_open_complete_context = NULL;
AzureIoTClient 19:2e0811512ceb 578
AzureIoTClient 19:2e0811512ceb 579 result->on_io_close_complete = NULL;
AzureIoTClient 19:2e0811512ceb 580 result->on_io_close_complete_context = NULL;
AzureIoTClient 19:2e0811512ceb 581
AzureIoTClient 19:2e0811512ceb 582 result->on_io_error = NULL;
AzureIoTClient 19:2e0811512ceb 583 result->on_io_error_context = NULL;
AzureIoTClient 19:2e0811512ceb 584
AzureIoTClient 19:2e0811512ceb 585 result->tlsio_state = TLSIO_STATE_NOT_OPEN;
AzureIoTClient 19:2e0811512ceb 586
AzureIoTClient 19:2e0811512ceb 587 result->ssl_context = wolfSSL_CTX_new(wolfTLSv1_client_method());
AzureIoTClient 19:2e0811512ceb 588 if (result->ssl_context == NULL)
Azure.IoT Build 0:fa2de1b79154 589 {
AzureIoTClient 19:2e0811512ceb 590 LogError("Cannot create the wolfSSL context");
AzureIoTClient 19:2e0811512ceb 591 free(result->hostname);
Azure.IoT Build 0:fa2de1b79154 592 free(result);
Azure.IoT Build 0:fa2de1b79154 593 result = NULL;
Azure.IoT Build 0:fa2de1b79154 594 }
Azure.IoT Build 0:fa2de1b79154 595 else
Azure.IoT Build 0:fa2de1b79154 596 {
AzureIoTClient 19:2e0811512ceb 597 const IO_INTERFACE_DESCRIPTION* socket_io_interface = socketio_get_interface_description();
AzureIoTClient 19:2e0811512ceb 598 if (socket_io_interface == NULL)
Azure.IoT Build 0:fa2de1b79154 599 {
Azure.IoT Build 0:fa2de1b79154 600 wolfSSL_CTX_free(result->ssl_context);
AzureIoTClient 19:2e0811512ceb 601 free(result->hostname);
Azure.IoT Build 0:fa2de1b79154 602 free(result);
Azure.IoT Build 0:fa2de1b79154 603 result = NULL;
Azure.IoT Build 0:fa2de1b79154 604 }
AzureIoTClient 19:2e0811512ceb 605 else
AzureIoTClient 19:2e0811512ceb 606 {
AzureIoTClient 19:2e0811512ceb 607 SOCKETIO_CONFIG socketio_config;
AzureIoTClient 19:2e0811512ceb 608 socketio_config.hostname = result->hostname;
AzureIoTClient 19:2e0811512ceb 609 socketio_config.port = result->port;
AzureIoTClient 19:2e0811512ceb 610 socketio_config.accepted_socket = NULL;
AzureIoTClient 19:2e0811512ceb 611
AzureIoTClient 19:2e0811512ceb 612 result->socket_io = xio_create(socket_io_interface, &socketio_config);
AzureIoTClient 19:2e0811512ceb 613 if (result->socket_io == NULL)
AzureIoTClient 19:2e0811512ceb 614 {
AzureIoTClient 19:2e0811512ceb 615 LogError("Failure connecting to underlying socket_io");
AzureIoTClient 19:2e0811512ceb 616 wolfSSL_CTX_free(result->ssl_context);
AzureIoTClient 19:2e0811512ceb 617 free(result->hostname);
AzureIoTClient 19:2e0811512ceb 618 free(result);
AzureIoTClient 19:2e0811512ceb 619 result = NULL;
AzureIoTClient 19:2e0811512ceb 620 }
AzureIoTClient 19:2e0811512ceb 621 }
Azure.IoT Build 0:fa2de1b79154 622 }
Azure.IoT Build 0:fa2de1b79154 623 }
Azure.IoT Build 0:fa2de1b79154 624 }
Azure.IoT Build 0:fa2de1b79154 625 }
Azure.IoT Build 0:fa2de1b79154 626
Azure.IoT Build 0:fa2de1b79154 627 return result;
Azure.IoT Build 0:fa2de1b79154 628 }
Azure.IoT Build 0:fa2de1b79154 629
Azure.IoT Build 0:fa2de1b79154 630 void tlsio_wolfssl_destroy(CONCRETE_IO_HANDLE tls_io)
Azure.IoT Build 0:fa2de1b79154 631 {
Azure.IoT Build 0:fa2de1b79154 632 if (tls_io != NULL)
Azure.IoT Build 0:fa2de1b79154 633 {
Azure.IoT Build 0:fa2de1b79154 634 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 635 if (tls_io_instance->socket_io_read_bytes != NULL)
Azure.IoT Build 0:fa2de1b79154 636 {
Azure.IoT Build 0:fa2de1b79154 637 free(tls_io_instance->socket_io_read_bytes);
Azure.IoT Build 0:fa2de1b79154 638 }
Azure.IoT Build 0:fa2de1b79154 639
Azure.IoT Build 6:c55b013dfc2a 640 if (tls_io_instance->certificate != NULL)
Azure.IoT Build 6:c55b013dfc2a 641 {
Azure.IoT Build 6:c55b013dfc2a 642 free(tls_io_instance->certificate);
Azure.IoT Build 6:c55b013dfc2a 643 }
AzureIoTClient 15:956c6d205aa7 644 if (tls_io_instance->x509certificate != NULL)
AzureIoTClient 15:956c6d205aa7 645 {
AzureIoTClient 15:956c6d205aa7 646 free(tls_io_instance->x509certificate);
AzureIoTClient 15:956c6d205aa7 647 }
AzureIoTClient 15:956c6d205aa7 648 if (tls_io_instance->x509privatekey != NULL)
AzureIoTClient 15:956c6d205aa7 649 {
AzureIoTClient 15:956c6d205aa7 650 free(tls_io_instance->x509privatekey);
AzureIoTClient 15:956c6d205aa7 651 }
AzureIoTClient 19:2e0811512ceb 652 if (tls_io_instance->hostname != NULL)
AzureIoTClient 19:2e0811512ceb 653 {
AzureIoTClient 19:2e0811512ceb 654 free(tls_io_instance->hostname);
AzureIoTClient 19:2e0811512ceb 655 }
AzureIoTClient 19:2e0811512ceb 656
Azure.IoT Build 6:c55b013dfc2a 657 wolfSSL_CTX_free(tls_io_instance->ssl_context);
Azure.IoT Build 0:fa2de1b79154 658 xio_destroy(tls_io_instance->socket_io);
Azure.IoT Build 0:fa2de1b79154 659 free(tls_io);
Azure.IoT Build 0:fa2de1b79154 660 }
Azure.IoT Build 0:fa2de1b79154 661 }
Azure.IoT Build 0:fa2de1b79154 662
Azure.IoT Build 0:fa2de1b79154 663 int tlsio_wolfssl_open(CONCRETE_IO_HANDLE tls_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void* on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void* on_bytes_received_context, ON_IO_ERROR on_io_error, void* on_io_error_context)
Azure.IoT Build 0:fa2de1b79154 664 {
Azure.IoT Build 0:fa2de1b79154 665 int result;
Azure.IoT Build 0:fa2de1b79154 666
Azure.IoT Build 0:fa2de1b79154 667 if (tls_io == NULL)
Azure.IoT Build 0:fa2de1b79154 668 {
AzureIoTClient 19:2e0811512ceb 669 LogError("NULL tls_io instance");
AzureIoTClient 21:b92006c5b9ff 670 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 671 }
Azure.IoT Build 0:fa2de1b79154 672 else
Azure.IoT Build 0:fa2de1b79154 673 {
Azure.IoT Build 0:fa2de1b79154 674 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 675
Azure.IoT Build 0:fa2de1b79154 676 if (tls_io_instance->tlsio_state != TLSIO_STATE_NOT_OPEN)
Azure.IoT Build 0:fa2de1b79154 677 {
Azure.IoT Build 6:c55b013dfc2a 678 LogError("Invalid state encountered.");
AzureIoTClient 21:b92006c5b9ff 679 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 680 }
Azure.IoT Build 0:fa2de1b79154 681 else
Azure.IoT Build 0:fa2de1b79154 682 {
Azure.IoT Build 0:fa2de1b79154 683 tls_io_instance->on_bytes_received = on_bytes_received;
Azure.IoT Build 0:fa2de1b79154 684 tls_io_instance->on_bytes_received_context = on_bytes_received_context;
Azure.IoT Build 0:fa2de1b79154 685
Azure.IoT Build 0:fa2de1b79154 686 tls_io_instance->on_io_open_complete = on_io_open_complete;
Azure.IoT Build 0:fa2de1b79154 687 tls_io_instance->on_io_open_complete_context = on_io_open_complete_context;
Azure.IoT Build 0:fa2de1b79154 688
Azure.IoT Build 0:fa2de1b79154 689 tls_io_instance->on_io_error = on_io_error;
Azure.IoT Build 0:fa2de1b79154 690 tls_io_instance->on_io_error_context = on_io_error_context;
Azure.IoT Build 0:fa2de1b79154 691
Azure.IoT Build 0:fa2de1b79154 692 tls_io_instance->tlsio_state = TLSIO_STATE_OPENING_UNDERLYING_IO;
Azure.IoT Build 0:fa2de1b79154 693
Azure.IoT Build 6:c55b013dfc2a 694 if (create_wolfssl_instance(tls_io_instance) != 0)
Azure.IoT Build 6:c55b013dfc2a 695 {
AzureIoTClient 19:2e0811512ceb 696 LogError("Cannot create wolfssl instance.");
Azure.IoT Build 6:c55b013dfc2a 697 tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
AzureIoTClient 21:b92006c5b9ff 698 result = __FAILURE__;
Azure.IoT Build 6:c55b013dfc2a 699 }
Azure.IoT Build 6:c55b013dfc2a 700 else if (xio_open(tls_io_instance->socket_io, on_underlying_io_open_complete, tls_io_instance, on_underlying_io_bytes_received, tls_io_instance, on_underlying_io_error, tls_io_instance) != 0)
Azure.IoT Build 0:fa2de1b79154 701 {
AzureIoTClient 19:2e0811512ceb 702 LogError("Cannot open the underlying IO.");
Azure.IoT Build 0:fa2de1b79154 703 tls_io_instance->tlsio_state = TLSIO_STATE_NOT_OPEN;
AzureIoTClient 21:b92006c5b9ff 704 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 705 }
Azure.IoT Build 0:fa2de1b79154 706 else
Azure.IoT Build 0:fa2de1b79154 707 {
Azure.IoT Build 6:c55b013dfc2a 708 // The state can get changed in the on_underlying_io_open_complete
AzureIoTClient 15:956c6d205aa7 709 if (tls_io_instance->tlsio_state != TLSIO_STATE_OPEN)
Azure.IoT Build 0:fa2de1b79154 710 {
Azure.IoT Build 6:c55b013dfc2a 711 LogError("Failed to connect to server. The certificates may not be correct.");
AzureIoTClient 21:b92006c5b9ff 712 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 713 }
Azure.IoT Build 0:fa2de1b79154 714 else
Azure.IoT Build 0:fa2de1b79154 715 {
AzureIoTClient 15:956c6d205aa7 716 result = 0;
Azure.IoT Build 0:fa2de1b79154 717 }
Azure.IoT Build 0:fa2de1b79154 718 }
Azure.IoT Build 0:fa2de1b79154 719 }
Azure.IoT Build 0:fa2de1b79154 720 }
Azure.IoT Build 0:fa2de1b79154 721
Azure.IoT Build 0:fa2de1b79154 722 return result;
Azure.IoT Build 0:fa2de1b79154 723 }
Azure.IoT Build 0:fa2de1b79154 724
Azure.IoT Build 0:fa2de1b79154 725 int tlsio_wolfssl_close(CONCRETE_IO_HANDLE tls_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void* callback_context)
Azure.IoT Build 0:fa2de1b79154 726 {
Azure.IoT Build 0:fa2de1b79154 727 int result = 0;
Azure.IoT Build 0:fa2de1b79154 728
Azure.IoT Build 0:fa2de1b79154 729 if (tls_io == NULL)
Azure.IoT Build 0:fa2de1b79154 730 {
AzureIoTClient 19:2e0811512ceb 731 LogError("NULL tls_io handle.");
AzureIoTClient 21:b92006c5b9ff 732 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 733 }
Azure.IoT Build 0:fa2de1b79154 734 else
Azure.IoT Build 0:fa2de1b79154 735 {
Azure.IoT Build 0:fa2de1b79154 736 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 737
Azure.IoT Build 0:fa2de1b79154 738 if ((tls_io_instance->tlsio_state == TLSIO_STATE_NOT_OPEN) ||
Azure.IoT Build 0:fa2de1b79154 739 (tls_io_instance->tlsio_state == TLSIO_STATE_CLOSING))
Azure.IoT Build 0:fa2de1b79154 740 {
AzureIoTClient 19:2e0811512ceb 741 LogError("Close called while not open.");
AzureIoTClient 21:b92006c5b9ff 742 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 743 }
Azure.IoT Build 0:fa2de1b79154 744 else
Azure.IoT Build 0:fa2de1b79154 745 {
Azure.IoT Build 0:fa2de1b79154 746 tls_io_instance->tlsio_state = TLSIO_STATE_CLOSING;
Azure.IoT Build 0:fa2de1b79154 747 tls_io_instance->on_io_close_complete = on_io_close_complete;
Azure.IoT Build 0:fa2de1b79154 748 tls_io_instance->on_io_close_complete_context = callback_context;
Azure.IoT Build 0:fa2de1b79154 749
Azure.IoT Build 0:fa2de1b79154 750 if (xio_close(tls_io_instance->socket_io, on_underlying_io_close_complete, tls_io_instance) != 0)
Azure.IoT Build 0:fa2de1b79154 751 {
AzureIoTClient 19:2e0811512ceb 752 LogError("xio_close failed.");
AzureIoTClient 21:b92006c5b9ff 753 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 754 }
Azure.IoT Build 0:fa2de1b79154 755 else
Azure.IoT Build 0:fa2de1b79154 756 {
Azure.IoT Build 6:c55b013dfc2a 757 destroy_wolfssl_instance(tls_io_instance);
Azure.IoT Build 0:fa2de1b79154 758 result = 0;
Azure.IoT Build 0:fa2de1b79154 759 }
Azure.IoT Build 0:fa2de1b79154 760 }
Azure.IoT Build 0:fa2de1b79154 761 }
Azure.IoT Build 0:fa2de1b79154 762
Azure.IoT Build 0:fa2de1b79154 763 return result;
Azure.IoT Build 0:fa2de1b79154 764 }
Azure.IoT Build 0:fa2de1b79154 765
Azure.IoT Build 0:fa2de1b79154 766 int tlsio_wolfssl_send(CONCRETE_IO_HANDLE tls_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
Azure.IoT Build 0:fa2de1b79154 767 {
Azure.IoT Build 0:fa2de1b79154 768 int result;
Azure.IoT Build 0:fa2de1b79154 769
Azure.IoT Build 0:fa2de1b79154 770 if (tls_io == NULL)
Azure.IoT Build 0:fa2de1b79154 771 {
AzureIoTClient 19:2e0811512ceb 772 LogError("NULL tls_io handle");
AzureIoTClient 21:b92006c5b9ff 773 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 774 }
Azure.IoT Build 0:fa2de1b79154 775 else
Azure.IoT Build 0:fa2de1b79154 776 {
Azure.IoT Build 0:fa2de1b79154 777 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 778
Azure.IoT Build 0:fa2de1b79154 779 if (tls_io_instance->tlsio_state != TLSIO_STATE_OPEN)
Azure.IoT Build 0:fa2de1b79154 780 {
AzureIoTClient 19:2e0811512ceb 781 LogError("send called while not open");
AzureIoTClient 21:b92006c5b9ff 782 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 783 }
Azure.IoT Build 0:fa2de1b79154 784 else
Azure.IoT Build 0:fa2de1b79154 785 {
Azure.IoT Build 0:fa2de1b79154 786 tls_io_instance->on_send_complete = on_send_complete;
Azure.IoT Build 0:fa2de1b79154 787 tls_io_instance->on_send_complete_callback_context = callback_context;
Azure.IoT Build 0:fa2de1b79154 788
Azure.IoT Build 0:fa2de1b79154 789 int res = wolfSSL_write(tls_io_instance->ssl, buffer, size);
AzureIoTClient 15:956c6d205aa7 790 if ((res < 0) || ((size_t)res != size)) // Best way I can think of to safely compare an int to a size_t
Azure.IoT Build 0:fa2de1b79154 791 {
AzureIoTClient 19:2e0811512ceb 792 LogError("Error writing data through WolfSSL");
AzureIoTClient 21:b92006c5b9ff 793 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 794 }
Azure.IoT Build 0:fa2de1b79154 795 else
Azure.IoT Build 0:fa2de1b79154 796 {
Azure.IoT Build 0:fa2de1b79154 797 result = 0;
Azure.IoT Build 0:fa2de1b79154 798 }
Azure.IoT Build 0:fa2de1b79154 799 }
Azure.IoT Build 0:fa2de1b79154 800 }
Azure.IoT Build 0:fa2de1b79154 801
Azure.IoT Build 0:fa2de1b79154 802 return result;
Azure.IoT Build 0:fa2de1b79154 803 }
Azure.IoT Build 0:fa2de1b79154 804
Azure.IoT Build 0:fa2de1b79154 805 void tlsio_wolfssl_dowork(CONCRETE_IO_HANDLE tls_io)
Azure.IoT Build 0:fa2de1b79154 806 {
AzureIoTClient 19:2e0811512ceb 807 if (tls_io == NULL)
AzureIoTClient 19:2e0811512ceb 808 {
AzureIoTClient 19:2e0811512ceb 809 LogError("NULL tls_io");
AzureIoTClient 19:2e0811512ceb 810 }
AzureIoTClient 19:2e0811512ceb 811 else
Azure.IoT Build 0:fa2de1b79154 812 {
Azure.IoT Build 0:fa2de1b79154 813 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 814
Azure.IoT Build 0:fa2de1b79154 815 if ((tls_io_instance->tlsio_state != TLSIO_STATE_NOT_OPEN) &&
Azure.IoT Build 0:fa2de1b79154 816 (tls_io_instance->tlsio_state != TLSIO_STATE_ERROR))
Azure.IoT Build 0:fa2de1b79154 817 {
Azure.IoT Build 0:fa2de1b79154 818 decode_ssl_received_bytes(tls_io_instance);
Azure.IoT Build 0:fa2de1b79154 819 xio_dowork(tls_io_instance->socket_io);
Azure.IoT Build 0:fa2de1b79154 820 }
Azure.IoT Build 0:fa2de1b79154 821 }
Azure.IoT Build 0:fa2de1b79154 822 }
Azure.IoT Build 0:fa2de1b79154 823
Azure.IoT Build 0:fa2de1b79154 824 const IO_INTERFACE_DESCRIPTION* tlsio_wolfssl_get_interface_description(void)
Azure.IoT Build 0:fa2de1b79154 825 {
Azure.IoT Build 0:fa2de1b79154 826 return &tlsio_wolfssl_interface_description;
Azure.IoT Build 0:fa2de1b79154 827 }
Azure.IoT Build 0:fa2de1b79154 828
AzureIoTClient 15:956c6d205aa7 829 static int process_option(char** destination, const char* name, const char* value)
AzureIoTClient 15:956c6d205aa7 830 {
AzureIoTClient 15:956c6d205aa7 831 int result;
AzureIoTClient 15:956c6d205aa7 832 if (*destination != NULL)
AzureIoTClient 15:956c6d205aa7 833 {
AzureIoTClient 15:956c6d205aa7 834 free(*destination);
AzureIoTClient 15:956c6d205aa7 835 *destination = NULL;
AzureIoTClient 15:956c6d205aa7 836 }
AzureIoTClient 15:956c6d205aa7 837 if (mallocAndStrcpy_s(destination, value) != 0)
AzureIoTClient 15:956c6d205aa7 838 {
AzureIoTClient 15:956c6d205aa7 839 LogError("unable to process option %s",name);
AzureIoTClient 21:b92006c5b9ff 840 result = __FAILURE__;
AzureIoTClient 15:956c6d205aa7 841 }
AzureIoTClient 15:956c6d205aa7 842 else
AzureIoTClient 15:956c6d205aa7 843 {
AzureIoTClient 15:956c6d205aa7 844 result = 0;
AzureIoTClient 15:956c6d205aa7 845 }
AzureIoTClient 15:956c6d205aa7 846 return result;
AzureIoTClient 19:2e0811512ceb 847 }
AzureIoTClient 15:956c6d205aa7 848
Azure.IoT Build 0:fa2de1b79154 849 int tlsio_wolfssl_setoption(CONCRETE_IO_HANDLE tls_io, const char* optionName, const void* value)
Azure.IoT Build 0:fa2de1b79154 850 {
Azure.IoT Build 0:fa2de1b79154 851 int result;
Azure.IoT Build 0:fa2de1b79154 852
Azure.IoT Build 0:fa2de1b79154 853 if (tls_io == NULL || optionName == NULL)
Azure.IoT Build 0:fa2de1b79154 854 {
AzureIoTClient 19:2e0811512ceb 855 LogError("Bad arguments, tls_io = %p, optionName = %p", tls_io, optionName);
AzureIoTClient 21:b92006c5b9ff 856 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 857 }
Azure.IoT Build 0:fa2de1b79154 858 else
Azure.IoT Build 0:fa2de1b79154 859 {
Azure.IoT Build 0:fa2de1b79154 860 TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
Azure.IoT Build 0:fa2de1b79154 861
Azure.IoT Build 0:fa2de1b79154 862 if (strcmp("TrustedCerts", optionName) == 0)
Azure.IoT Build 0:fa2de1b79154 863 {
AzureIoTClient 15:956c6d205aa7 864 result = process_option(&tls_io_instance->certificate, optionName, value);
AzureIoTClient 15:956c6d205aa7 865 }
AzureIoTClient 15:956c6d205aa7 866 else if (strcmp(SU_OPTION_X509_CERT, optionName) == 0)
AzureIoTClient 15:956c6d205aa7 867 {
AzureIoTClient 15:956c6d205aa7 868 result = process_option(&tls_io_instance->x509certificate, optionName, value);
AzureIoTClient 15:956c6d205aa7 869 }
AzureIoTClient 15:956c6d205aa7 870 else if (strcmp(SU_OPTION_X509_PRIVATE_KEY, optionName) == 0)
AzureIoTClient 15:956c6d205aa7 871 {
AzureIoTClient 15:956c6d205aa7 872 result = process_option(&tls_io_instance->x509privatekey, optionName, value);
AzureIoTClient 15:956c6d205aa7 873 }
AzureIoTClient 15:956c6d205aa7 874 else
AzureIoTClient 15:956c6d205aa7 875 {
AzureIoTClient 15:956c6d205aa7 876 if (tls_io_instance->socket_io == NULL)
Azure.IoT Build 0:fa2de1b79154 877 {
AzureIoTClient 19:2e0811512ceb 878 LogError("NULL underlying IO handle");
AzureIoTClient 21:b92006c5b9ff 879 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 880 }
Azure.IoT Build 0:fa2de1b79154 881 else
Azure.IoT Build 0:fa2de1b79154 882 {
AzureIoTClient 15:956c6d205aa7 883 result = xio_setoption(tls_io_instance->socket_io, optionName, value);
Azure.IoT Build 0:fa2de1b79154 884 }
Azure.IoT Build 0:fa2de1b79154 885 }
Azure.IoT Build 0:fa2de1b79154 886 }
Azure.IoT Build 0:fa2de1b79154 887
Azure.IoT Build 0:fa2de1b79154 888 return result;
AzureIoTClient 10:1be0bc9a9deb 889 }