Azure IoT / azure_umqtt_c

A small footprint MQTT library

Dependents:   STM32F746_iothub_client_sample_mqtt FXOS8700CQ_To_Azure_IoT f767zi_mqtt FXOS8700CQ_To_Azure_IoT ... more

mqtt_client.c@4:e7167dabd6e4, 2016-07-01 (annotated)

Committer:
Azure.IoT Build
Date:
Fri Jul 01 10:42:59 2016 -0700
Revision:
4:e7167dabd6e4
Parent:
3:9b4e7158ca0d
Child:
5:34779607059c
1.0.10

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:ef4901974abc 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:ef4901974abc 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:ef4901974abc 3
Azure.IoT Build 0:ef4901974abc 4 #include <stdlib.h>
Azure.IoT Build 0:ef4901974abc 5 #include "azure_c_shared_utility/gballoc.h"
Azure.IoT Build 0:ef4901974abc 6 #include "azure_c_shared_utility/platform.h"
Azure.IoT Build 0:ef4901974abc 7 #include "azure_c_shared_utility/tickcounter.h"
Azure.IoT Build 0:ef4901974abc 8 #include "azure_c_shared_utility/crt_abstractions.h"
Azure.IoT Build 4:e7167dabd6e4 9 #include "azure_c_shared_utility/xlogging.h"
Azure.IoT Build 0:ef4901974abc 10
Azure.IoT Build 0:ef4901974abc 11 #include "azure_umqtt_c/mqtt_client.h"
Azure.IoT Build 0:ef4901974abc 12 #include "azure_umqtt_c/mqtt_codec.h"
AzureIoTClient 1:8dba42ff9701 13 #include <time.h>
Azure.IoT Build 0:ef4901974abc 14
Azure.IoT Build 0:ef4901974abc 15 #define KEEP_ALIVE_BUFFER_SEC 10
Azure.IoT Build 0:ef4901974abc 16 #define VARIABLE_HEADER_OFFSET 2
Azure.IoT Build 0:ef4901974abc 17 #define RETAIN_FLAG_MASK 0x1
Azure.IoT Build 0:ef4901974abc 18 #define QOS_LEAST_ONCE_FLAG_MASK 0x2
Azure.IoT Build 0:ef4901974abc 19 #define QOS_EXACTLY_ONCE_FLAG_MASK 0x4
Azure.IoT Build 0:ef4901974abc 20 #define DUPLICATE_FLAG_MASK 0x8
Azure.IoT Build 0:ef4901974abc 21 #define CONNECT_PACKET_MASK 0xf0
AzureIoTClient 1:8dba42ff9701 22 #define TIME_MAX_BUFFER 16
AzureIoTClient 3:9b4e7158ca0d 23 #define DEFAULT_MAX_PING_RESPONSE_TIME 90
Azure.IoT Build 0:ef4901974abc 24
Azure.IoT Build 0:ef4901974abc 25 static const char* FORMAT_HEX_CHAR = "0x%02x ";
Azure.IoT Build 0:ef4901974abc 26
Azure.IoT Build 0:ef4901974abc 27 typedef struct MQTT_CLIENT_TAG
Azure.IoT Build 0:ef4901974abc 28 {
Azure.IoT Build 0:ef4901974abc 29 XIO_HANDLE xioHandle;
Azure.IoT Build 0:ef4901974abc 30 MQTTCODEC_HANDLE codec_handle;
Azure.IoT Build 0:ef4901974abc 31 CONTROL_PACKET_TYPE packetState;
Azure.IoT Build 0:ef4901974abc 32 TICK_COUNTER_HANDLE packetTickCntr;
Azure.IoT Build 0:ef4901974abc 33 uint64_t packetSendTimeMs;
Azure.IoT Build 0:ef4901974abc 34 ON_MQTT_OPERATION_CALLBACK fnOperationCallback;
Azure.IoT Build 0:ef4901974abc 35 ON_MQTT_MESSAGE_RECV_CALLBACK fnMessageRecv;
Azure.IoT Build 0:ef4901974abc 36 void* ctx;
Azure.IoT Build 0:ef4901974abc 37 QOS_VALUE qosValue;
Azure.IoT Build 0:ef4901974abc 38 uint16_t keepAliveInterval;
Azure.IoT Build 0:ef4901974abc 39 MQTT_CLIENT_OPTIONS mqttOptions;
Azure.IoT Build 0:ef4901974abc 40 bool clientConnected;
Azure.IoT Build 0:ef4901974abc 41 bool socketConnected;
Azure.IoT Build 0:ef4901974abc 42 bool logTrace;
Azure.IoT Build 0:ef4901974abc 43 bool rawBytesTrace;
AzureIoTClient 3:9b4e7158ca0d 44 uint64_t timeSincePing;
AzureIoTClient 3:9b4e7158ca0d 45 uint16_t maxPingRespTime;
Azure.IoT Build 0:ef4901974abc 46 } MQTT_CLIENT;
Azure.IoT Build 0:ef4901974abc 47
Azure.IoT Build 0:ef4901974abc 48 static uint16_t byteutil_read_uint16(uint8_t** buffer)
Azure.IoT Build 0:ef4901974abc 49 {
Azure.IoT Build 0:ef4901974abc 50 uint16_t result = 0;
Azure.IoT Build 0:ef4901974abc 51 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 52 {
Azure.IoT Build 0:ef4901974abc 53 result = 256 * ((uint8_t)(**buffer)) + (uint8_t)(*(*buffer + 1));
Azure.IoT Build 0:ef4901974abc 54 *buffer += 2; // Move the ptr
Azure.IoT Build 0:ef4901974abc 55 }
Azure.IoT Build 0:ef4901974abc 56 return result;
Azure.IoT Build 0:ef4901974abc 57 }
Azure.IoT Build 0:ef4901974abc 58
Azure.IoT Build 0:ef4901974abc 59 static char* byteutil_readUTF(uint8_t** buffer, size_t* byteLen)
Azure.IoT Build 0:ef4901974abc 60 {
Azure.IoT Build 0:ef4901974abc 61 char* result = NULL;
Azure.IoT Build 0:ef4901974abc 62 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 63 {
Azure.IoT Build 0:ef4901974abc 64 // Get the length of the string
Azure.IoT Build 0:ef4901974abc 65 int len = byteutil_read_uint16(buffer);
Azure.IoT Build 0:ef4901974abc 66 if (len > 0)
Azure.IoT Build 0:ef4901974abc 67 {
Azure.IoT Build 0:ef4901974abc 68 result = (char*)malloc(len + 1);
Azure.IoT Build 0:ef4901974abc 69 if (result != NULL)
Azure.IoT Build 0:ef4901974abc 70 {
Azure.IoT Build 0:ef4901974abc 71 (void)memcpy(result, *buffer, len);
Azure.IoT Build 0:ef4901974abc 72 result[len] = '\0';
Azure.IoT Build 0:ef4901974abc 73 *buffer += len;
Azure.IoT Build 0:ef4901974abc 74 if (byteLen != NULL)
Azure.IoT Build 0:ef4901974abc 75 {
Azure.IoT Build 0:ef4901974abc 76 *byteLen = len;
Azure.IoT Build 0:ef4901974abc 77 }
Azure.IoT Build 0:ef4901974abc 78 }
Azure.IoT Build 0:ef4901974abc 79 }
Azure.IoT Build 0:ef4901974abc 80 }
Azure.IoT Build 0:ef4901974abc 81 return result;
Azure.IoT Build 0:ef4901974abc 82 }
Azure.IoT Build 0:ef4901974abc 83
Azure.IoT Build 0:ef4901974abc 84 static uint8_t byteutil_readByte(uint8_t** buffer)
Azure.IoT Build 0:ef4901974abc 85 {
Azure.IoT Build 0:ef4901974abc 86 uint8_t result = 0;
Azure.IoT Build 0:ef4901974abc 87 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 88 {
Azure.IoT Build 0:ef4901974abc 89 result = **buffer;
Azure.IoT Build 0:ef4901974abc 90 (*buffer)++;
Azure.IoT Build 0:ef4901974abc 91 }
Azure.IoT Build 0:ef4901974abc 92 return result;
Azure.IoT Build 0:ef4901974abc 93 }
Azure.IoT Build 0:ef4901974abc 94
Azure.IoT Build 0:ef4901974abc 95 static void sendComplete(void* context, IO_SEND_RESULT send_result)
Azure.IoT Build 0:ef4901974abc 96 {
Azure.IoT Build 0:ef4901974abc 97 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 98 if (mqttData != NULL && mqttData->fnOperationCallback != NULL)
Azure.IoT Build 0:ef4901974abc 99 {
Azure.IoT Build 0:ef4901974abc 100 if (mqttData->packetState == DISCONNECT_TYPE)
Azure.IoT Build 0:ef4901974abc 101 {
Azure.IoT Build 0:ef4901974abc 102 /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT or MQTT_CLIENT_ON_ERROR the the msgInfo value shall be NULL.]*/
Azure.IoT Build 0:ef4901974abc 103 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_DISCONNECT, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 104
Azure.IoT Build 0:ef4901974abc 105 // close the xio
Azure.IoT Build 0:ef4901974abc 106 (void)xio_close(mqttData->xioHandle, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 107 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 108 mqttData->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 109 }
Azure.IoT Build 0:ef4901974abc 110 }
Azure.IoT Build 0:ef4901974abc 111 }
Azure.IoT Build 0:ef4901974abc 112
Azure.IoT Build 0:ef4901974abc 113 static const char* retrievePacketType(CONTROL_PACKET_TYPE packet)
Azure.IoT Build 0:ef4901974abc 114 {
Azure.IoT Build 0:ef4901974abc 115 switch (packet&CONNECT_PACKET_MASK)
Azure.IoT Build 0:ef4901974abc 116 {
Azure.IoT Build 0:ef4901974abc 117 case CONNECT_TYPE: return "CONNECT";
Azure.IoT Build 0:ef4901974abc 118 case CONNACK_TYPE: return "CONNACK";
Azure.IoT Build 0:ef4901974abc 119 case PUBLISH_TYPE: return "PUBLISH";
Azure.IoT Build 0:ef4901974abc 120 case PUBACK_TYPE: return "PUBACK";
Azure.IoT Build 0:ef4901974abc 121 case PUBREC_TYPE: return "PUBREC";
Azure.IoT Build 0:ef4901974abc 122 case PUBREL_TYPE: return "PUBREL";
Azure.IoT Build 0:ef4901974abc 123 case SUBSCRIBE_TYPE: return "SUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 124 case SUBACK_TYPE: return "SUBACK";
Azure.IoT Build 0:ef4901974abc 125 case UNSUBSCRIBE_TYPE: return "UNSUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 126 case UNSUBACK_TYPE: return "UNSUBACK";
Azure.IoT Build 0:ef4901974abc 127 case PINGREQ_TYPE: return "PINGREQ";
Azure.IoT Build 0:ef4901974abc 128 case PINGRESP_TYPE: return "PINGRESP";
Azure.IoT Build 0:ef4901974abc 129 case DISCONNECT_TYPE: return "DISCONNECT";
Azure.IoT Build 0:ef4901974abc 130 default:
Azure.IoT Build 0:ef4901974abc 131 case PACKET_TYPE_ERROR:
Azure.IoT Build 0:ef4901974abc 132 case UNKNOWN_TYPE:
Azure.IoT Build 0:ef4901974abc 133 return "UNKNOWN";
Azure.IoT Build 0:ef4901974abc 134 }
Azure.IoT Build 0:ef4901974abc 135 }
Azure.IoT Build 0:ef4901974abc 136
AzureIoTClient 1:8dba42ff9701 137 static void getLogTime(char* timeResult, size_t len)
AzureIoTClient 1:8dba42ff9701 138 {
AzureIoTClient 1:8dba42ff9701 139 if (timeResult != NULL)
AzureIoTClient 1:8dba42ff9701 140 {
AzureIoTClient 1:8dba42ff9701 141 time_t localTime = time(NULL);
AzureIoTClient 1:8dba42ff9701 142 struct tm* tmInfo = localtime(&localTime);
AzureIoTClient 1:8dba42ff9701 143 if (strftime(timeResult, len, "%H:%M:%S", tmInfo) == 0)
AzureIoTClient 1:8dba42ff9701 144 {
AzureIoTClient 1:8dba42ff9701 145 timeResult[0] = '\0';
AzureIoTClient 1:8dba42ff9701 146 }
AzureIoTClient 1:8dba42ff9701 147 }
AzureIoTClient 1:8dba42ff9701 148 }
AzureIoTClient 1:8dba42ff9701 149
Azure.IoT Build 0:ef4901974abc 150 static void logOutgoingingMsgTrace(MQTT_CLIENT* clientData, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 151 {
Azure.IoT Build 0:ef4901974abc 152 if (clientData != NULL && data != NULL && length > 0 && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 153 {
AzureIoTClient 1:8dba42ff9701 154 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 1:8dba42ff9701 155 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 156
Azure.IoT Build 4:e7167dabd6e4 157 LOG(LOG_TRACE, 0, "-> %s %s: ", tmBuffer, retrievePacketType((unsigned char)data[0]));
Azure.IoT Build 0:ef4901974abc 158 for (size_t index = 0; index < length; index++)
Azure.IoT Build 0:ef4901974abc 159 {
Azure.IoT Build 4:e7167dabd6e4 160 LOG(LOG_TRACE, 0, (char*)FORMAT_HEX_CHAR, data[index]);
Azure.IoT Build 0:ef4901974abc 161 }
Azure.IoT Build 4:e7167dabd6e4 162
Azure.IoT Build 4:e7167dabd6e4 163 LOG(LOG_TRACE, LOG_LINE, "");
Azure.IoT Build 0:ef4901974abc 164 }
Azure.IoT Build 0:ef4901974abc 165 }
Azure.IoT Build 0:ef4901974abc 166
Azure.IoT Build 0:ef4901974abc 167 static void logIncomingMsgTrace(MQTT_CLIENT* clientData, CONTROL_PACKET_TYPE packet, int flags, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 168 {
AzureIoTClient 3:9b4e7158ca0d 169 if (clientData != NULL && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 170 {
AzureIoTClient 3:9b4e7158ca0d 171 if (data != NULL && length > 0)
AzureIoTClient 3:9b4e7158ca0d 172 {
AzureIoTClient 3:9b4e7158ca0d 173 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 174 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 175
Azure.IoT Build 4:e7167dabd6e4 176 LOG(LOG_TRACE, 0, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((CONTROL_PACKET_TYPE)packet), (unsigned char)(packet | flags), length);
AzureIoTClient 3:9b4e7158ca0d 177 for (size_t index = 0; index < length; index++)
AzureIoTClient 3:9b4e7158ca0d 178 {
Azure.IoT Build 4:e7167dabd6e4 179 LOG(LOG_TRACE, 0, (char*)FORMAT_HEX_CHAR, data[index]);
AzureIoTClient 3:9b4e7158ca0d 180 }
Azure.IoT Build 4:e7167dabd6e4 181
Azure.IoT Build 4:e7167dabd6e4 182 LOG(LOG_TRACE, LOG_LINE, "");
AzureIoTClient 3:9b4e7158ca0d 183 }
AzureIoTClient 3:9b4e7158ca0d 184 else if (packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 185 {
AzureIoTClient 3:9b4e7158ca0d 186 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 187 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 3:9b4e7158ca0d 188
Azure.IoT Build 4:e7167dabd6e4 189 LOG(LOG_TRACE, LOG_LINE, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((CONTROL_PACKET_TYPE)packet), (unsigned char)(packet | flags), length);
Azure.IoT Build 0:ef4901974abc 190 }
Azure.IoT Build 0:ef4901974abc 191 }
Azure.IoT Build 0:ef4901974abc 192 }
Azure.IoT Build 0:ef4901974abc 193
Azure.IoT Build 4:e7167dabd6e4 194 static int sendPacketItem(MQTT_CLIENT* clientData, const unsigned char* data, size_t length)
Azure.IoT Build 0:ef4901974abc 195 {
Azure.IoT Build 0:ef4901974abc 196 int result;
Azure.IoT Build 0:ef4901974abc 197
Azure.IoT Build 0:ef4901974abc 198 if (tickcounter_get_current_ms(clientData->packetTickCntr, &clientData->packetSendTimeMs) != 0)
Azure.IoT Build 0:ef4901974abc 199 {
Azure.IoT Build 4:e7167dabd6e4 200 LOG(LOG_ERROR, LOG_LINE, "Failure getting current ms tickcounter");
Azure.IoT Build 0:ef4901974abc 201 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 202 }
Azure.IoT Build 0:ef4901974abc 203 else
Azure.IoT Build 0:ef4901974abc 204 {
Azure.IoT Build 4:e7167dabd6e4 205 result = xio_send(clientData->xioHandle, (const void*)data, length, sendComplete, clientData);
Azure.IoT Build 0:ef4901974abc 206 if (result != 0)
Azure.IoT Build 0:ef4901974abc 207 {
Azure.IoT Build 4:e7167dabd6e4 208 LOG(LOG_ERROR, LOG_LINE, "%d: Failure sending control packet data", result);
Azure.IoT Build 0:ef4901974abc 209 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 210 }
Azure.IoT Build 4:e7167dabd6e4 211 else
Azure.IoT Build 4:e7167dabd6e4 212 {
Azure.IoT Build 4:e7167dabd6e4 213 logOutgoingingMsgTrace(clientData, (const uint8_t*)data, length);
Azure.IoT Build 4:e7167dabd6e4 214 }
Azure.IoT Build 0:ef4901974abc 215 }
Azure.IoT Build 0:ef4901974abc 216 return result;
Azure.IoT Build 0:ef4901974abc 217 }
Azure.IoT Build 0:ef4901974abc 218
Azure.IoT Build 0:ef4901974abc 219 static void onOpenComplete(void* context, IO_OPEN_RESULT open_result)
Azure.IoT Build 0:ef4901974abc 220 {
Azure.IoT Build 0:ef4901974abc 221 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 222 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 223 {
Azure.IoT Build 0:ef4901974abc 224 if (open_result == IO_OPEN_OK && !mqttData->socketConnected)
Azure.IoT Build 0:ef4901974abc 225 {
Azure.IoT Build 0:ef4901974abc 226 mqttData->packetState = CONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 227 mqttData->socketConnected = true;
Azure.IoT Build 0:ef4901974abc 228 // Send the Connect packet
Azure.IoT Build 0:ef4901974abc 229 BUFFER_HANDLE connPacket = mqtt_codec_connect(&mqttData->mqttOptions);
Azure.IoT Build 0:ef4901974abc 230 if (connPacket == NULL)
Azure.IoT Build 0:ef4901974abc 231 {
Azure.IoT Build 0:ef4901974abc 232 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 233 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 234 }
Azure.IoT Build 0:ef4901974abc 235 else
Azure.IoT Build 0:ef4901974abc 236 {
Azure.IoT Build 0:ef4901974abc 237 /*Codes_SRS_MQTT_CLIENT_07_009: [On success mqtt_client_connect shall send the MQTT CONNECT to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 238 if (sendPacketItem(mqttData, BUFFER_u_char(connPacket), BUFFER_length(connPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 239 {
Azure.IoT Build 0:ef4901974abc 240 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 241 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 242 }
Azure.IoT Build 0:ef4901974abc 243 BUFFER_delete(connPacket);
Azure.IoT Build 0:ef4901974abc 244 }
Azure.IoT Build 0:ef4901974abc 245 }
Azure.IoT Build 0:ef4901974abc 246 else if (open_result == IO_OPEN_ERROR)
Azure.IoT Build 0:ef4901974abc 247 {
Azure.IoT Build 0:ef4901974abc 248 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 249 }
Azure.IoT Build 0:ef4901974abc 250 }
Azure.IoT Build 0:ef4901974abc 251 }
Azure.IoT Build 0:ef4901974abc 252
Azure.IoT Build 0:ef4901974abc 253 static void onBytesReceived(void* context, const unsigned char* buffer, size_t size)
Azure.IoT Build 0:ef4901974abc 254 {
Azure.IoT Build 0:ef4901974abc 255 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 256 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 257 {
Azure.IoT Build 0:ef4901974abc 258 if (mqtt_codec_bytesReceived(mqttData->codec_handle, buffer, size) != 0)
Azure.IoT Build 0:ef4901974abc 259 {
Azure.IoT Build 0:ef4901974abc 260 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 261 {
Azure.IoT Build 0:ef4901974abc 262 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 263 }
Azure.IoT Build 0:ef4901974abc 264 }
Azure.IoT Build 0:ef4901974abc 265 }
Azure.IoT Build 0:ef4901974abc 266 }
Azure.IoT Build 0:ef4901974abc 267
Azure.IoT Build 0:ef4901974abc 268 static void onIoError(void* context)
Azure.IoT Build 0:ef4901974abc 269 {
Azure.IoT Build 0:ef4901974abc 270 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 271 if (mqttData != NULL && mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 272 {
Azure.IoT Build 0:ef4901974abc 273 /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT or MQTT_CLIENT_ON_ERROR the the msgInfo value shall be NULL.]*/
Azure.IoT Build 0:ef4901974abc 274 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 275 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 276 }
Azure.IoT Build 0:ef4901974abc 277 }
Azure.IoT Build 0:ef4901974abc 278
Azure.IoT Build 0:ef4901974abc 279 static int cloneMqttOptions(MQTT_CLIENT* mqttData, const MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 280 {
Azure.IoT Build 0:ef4901974abc 281 int result = 0;
Azure.IoT Build 0:ef4901974abc 282 if (mqttOptions->clientId != NULL)
Azure.IoT Build 0:ef4901974abc 283 {
Azure.IoT Build 0:ef4901974abc 284 if (mallocAndStrcpy_s(&mqttData->mqttOptions.clientId, mqttOptions->clientId) != 0)
Azure.IoT Build 0:ef4901974abc 285 {
Azure.IoT Build 0:ef4901974abc 286 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 287 }
Azure.IoT Build 0:ef4901974abc 288 }
Azure.IoT Build 0:ef4901974abc 289 if (result == 0 && mqttOptions->willTopic != NULL)
Azure.IoT Build 0:ef4901974abc 290 {
Azure.IoT Build 0:ef4901974abc 291 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willTopic, mqttOptions->willTopic) != 0)
Azure.IoT Build 0:ef4901974abc 292 {
Azure.IoT Build 0:ef4901974abc 293 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 294 }
Azure.IoT Build 0:ef4901974abc 295 }
Azure.IoT Build 0:ef4901974abc 296 if (result == 0 && mqttOptions->willMessage != NULL)
Azure.IoT Build 0:ef4901974abc 297 {
Azure.IoT Build 0:ef4901974abc 298 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willMessage, mqttOptions->willMessage) != 0)
Azure.IoT Build 0:ef4901974abc 299 {
Azure.IoT Build 0:ef4901974abc 300 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 301 }
Azure.IoT Build 0:ef4901974abc 302 }
Azure.IoT Build 0:ef4901974abc 303 if (result == 0 && mqttOptions->username != NULL)
Azure.IoT Build 0:ef4901974abc 304 {
Azure.IoT Build 0:ef4901974abc 305 if (mallocAndStrcpy_s(&mqttData->mqttOptions.username, mqttOptions->username) != 0)
Azure.IoT Build 0:ef4901974abc 306 {
Azure.IoT Build 0:ef4901974abc 307 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 308 }
Azure.IoT Build 0:ef4901974abc 309 }
Azure.IoT Build 0:ef4901974abc 310 if (result == 0 && mqttOptions->password != NULL)
Azure.IoT Build 0:ef4901974abc 311 {
Azure.IoT Build 0:ef4901974abc 312 if (mallocAndStrcpy_s(&mqttData->mqttOptions.password, mqttOptions->password) != 0)
Azure.IoT Build 0:ef4901974abc 313 {
Azure.IoT Build 0:ef4901974abc 314 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 315 }
Azure.IoT Build 0:ef4901974abc 316 }
Azure.IoT Build 0:ef4901974abc 317 if (result == 0)
Azure.IoT Build 0:ef4901974abc 318 {
Azure.IoT Build 0:ef4901974abc 319 mqttData->mqttOptions.keepAliveInterval = mqttOptions->keepAliveInterval;
Azure.IoT Build 0:ef4901974abc 320 mqttData->mqttOptions.messageRetain = mqttOptions->messageRetain;
Azure.IoT Build 0:ef4901974abc 321 mqttData->mqttOptions.useCleanSession = mqttOptions->useCleanSession;
Azure.IoT Build 0:ef4901974abc 322 mqttData->mqttOptions.qualityOfServiceValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 323 }
Azure.IoT Build 0:ef4901974abc 324 else
Azure.IoT Build 0:ef4901974abc 325 {
Azure.IoT Build 0:ef4901974abc 326 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 327 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 328 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 329 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 330 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 331 }
Azure.IoT Build 0:ef4901974abc 332 return result;
Azure.IoT Build 0:ef4901974abc 333 }
Azure.IoT Build 0:ef4901974abc 334
Azure.IoT Build 0:ef4901974abc 335 static void recvCompleteCallback(void* context, CONTROL_PACKET_TYPE packet, int flags, BUFFER_HANDLE headerData)
Azure.IoT Build 0:ef4901974abc 336 {
Azure.IoT Build 0:ef4901974abc 337 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
AzureIoTClient 3:9b4e7158ca0d 338 if ((mqttData != NULL && headerData != NULL) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 339 {
Azure.IoT Build 0:ef4901974abc 340 size_t len = BUFFER_length(headerData);
Azure.IoT Build 0:ef4901974abc 341 uint8_t* iterator = BUFFER_u_char(headerData);
Azure.IoT Build 0:ef4901974abc 342
Azure.IoT Build 0:ef4901974abc 343 logIncomingMsgTrace(mqttData, packet, flags, iterator, len);
Azure.IoT Build 0:ef4901974abc 344
AzureIoTClient 3:9b4e7158ca0d 345 if ((iterator != NULL && len > 0) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 346 {
Azure.IoT Build 0:ef4901974abc 347 switch (packet)
Azure.IoT Build 0:ef4901974abc 348 {
AzureIoTClient 3:9b4e7158ca0d 349 case CONNACK_TYPE:
Azure.IoT Build 0:ef4901974abc 350 {
AzureIoTClient 3:9b4e7158ca0d 351 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 352 {
AzureIoTClient 3:9b4e7158ca0d 353 /*Codes_SRS_MQTT_CLIENT_07_028: [If the actionResult parameter is of type CONNECT_ACK then the msgInfo value shall be a CONNECT_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 354 CONNECT_ACK connack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 355 connack.isSessionPresent = (byteutil_readByte(&iterator) == 0x1) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 356 connack.returnCode = byteutil_readByte(&iterator);
Azure.IoT Build 0:ef4901974abc 357
AzureIoTClient 3:9b4e7158ca0d 358 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_CONNACK, (void*)&connack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 359
AzureIoTClient 3:9b4e7158ca0d 360 if (connack.returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 3:9b4e7158ca0d 361 {
AzureIoTClient 3:9b4e7158ca0d 362 mqttData->clientConnected = true;
AzureIoTClient 3:9b4e7158ca0d 363 }
Azure.IoT Build 0:ef4901974abc 364 }
AzureIoTClient 3:9b4e7158ca0d 365 break;
Azure.IoT Build 0:ef4901974abc 366 }
AzureIoTClient 3:9b4e7158ca0d 367 case PUBLISH_TYPE:
Azure.IoT Build 0:ef4901974abc 368 {
AzureIoTClient 3:9b4e7158ca0d 369 if (mqttData->fnMessageRecv != NULL)
AzureIoTClient 3:9b4e7158ca0d 370 {
AzureIoTClient 3:9b4e7158ca0d 371 //uint8_t ctrlPacket = byteutil_readByte(&iterator);
AzureIoTClient 3:9b4e7158ca0d 372 bool isDuplicateMsg = (flags & DUPLICATE_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 373 bool isRetainMsg = (flags & RETAIN_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 374 QOS_VALUE qosValue = (flags == 0) ? DELIVER_AT_MOST_ONCE : (flags & QOS_LEAST_ONCE_FLAG_MASK) ? DELIVER_AT_LEAST_ONCE : DELIVER_EXACTLY_ONCE;
AzureIoTClient 3:9b4e7158ca0d 375
AzureIoTClient 3:9b4e7158ca0d 376 uint8_t* initialPos = iterator;
AzureIoTClient 3:9b4e7158ca0d 377 char* topicName = byteutil_readUTF(&iterator, NULL);
AzureIoTClient 3:9b4e7158ca0d 378 uint16_t packetId = 0;
AzureIoTClient 3:9b4e7158ca0d 379 if (qosValue != DELIVER_AT_MOST_ONCE)
AzureIoTClient 3:9b4e7158ca0d 380 {
AzureIoTClient 3:9b4e7158ca0d 381 packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 3:9b4e7158ca0d 382 }
AzureIoTClient 3:9b4e7158ca0d 383 size_t length = len - (iterator - initialPos);
Azure.IoT Build 0:ef4901974abc 384
AzureIoTClient 3:9b4e7158ca0d 385 MQTT_MESSAGE_HANDLE msgHandle = mqttmessage_create(packetId, topicName, qosValue, iterator, length);
AzureIoTClient 3:9b4e7158ca0d 386 if (msgHandle == NULL)
AzureIoTClient 3:9b4e7158ca0d 387 {
Azure.IoT Build 4:e7167dabd6e4 388 LOG(LOG_ERROR, LOG_LINE, "failure in mqttmessage_create");
AzureIoTClient 3:9b4e7158ca0d 389 }
AzureIoTClient 3:9b4e7158ca0d 390 else
AzureIoTClient 3:9b4e7158ca0d 391 {
AzureIoTClient 3:9b4e7158ca0d 392 (void)mqttmessage_setIsDuplicateMsg(msgHandle, isDuplicateMsg);
AzureIoTClient 3:9b4e7158ca0d 393 (void)mqttmessage_setIsRetained(msgHandle, isRetainMsg);
AzureIoTClient 3:9b4e7158ca0d 394 mqttData->fnMessageRecv(msgHandle, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 395
AzureIoTClient 3:9b4e7158ca0d 396 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 3:9b4e7158ca0d 397 if (qosValue == DELIVER_EXACTLY_ONCE)
AzureIoTClient 3:9b4e7158ca0d 398 {
AzureIoTClient 3:9b4e7158ca0d 399 pubRel = mqtt_codec_publishReceived(packetId);
AzureIoTClient 3:9b4e7158ca0d 400 }
AzureIoTClient 3:9b4e7158ca0d 401 else if (qosValue == DELIVER_AT_LEAST_ONCE)
AzureIoTClient 3:9b4e7158ca0d 402 {
AzureIoTClient 3:9b4e7158ca0d 403 pubRel = mqtt_codec_publishAck(packetId);
AzureIoTClient 3:9b4e7158ca0d 404 }
AzureIoTClient 3:9b4e7158ca0d 405 if (pubRel != NULL)
AzureIoTClient 3:9b4e7158ca0d 406 {
AzureIoTClient 3:9b4e7158ca0d 407 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
AzureIoTClient 3:9b4e7158ca0d 408 BUFFER_delete(pubRel);
AzureIoTClient 3:9b4e7158ca0d 409 }
AzureIoTClient 3:9b4e7158ca0d 410 free(topicName);
AzureIoTClient 3:9b4e7158ca0d 411 mqttmessage_destroy(msgHandle);
AzureIoTClient 3:9b4e7158ca0d 412 }
Azure.IoT Build 0:ef4901974abc 413 }
AzureIoTClient 3:9b4e7158ca0d 414 break;
AzureIoTClient 3:9b4e7158ca0d 415 }
AzureIoTClient 3:9b4e7158ca0d 416 case PUBACK_TYPE:
AzureIoTClient 3:9b4e7158ca0d 417 case PUBREC_TYPE:
AzureIoTClient 3:9b4e7158ca0d 418 case PUBREL_TYPE:
AzureIoTClient 3:9b4e7158ca0d 419 case PUBCOMP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 420 {
AzureIoTClient 3:9b4e7158ca0d 421 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 422 {
AzureIoTClient 3:9b4e7158ca0d 423 /*Codes_SRS_MQTT_CLIENT_07_029: [If the actionResult parameter are of types PUBACK_TYPE, PUBREC_TYPE, PUBREL_TYPE or PUBCOMP_TYPE then the msgInfo value shall be a PUBLISH_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 424 MQTT_CLIENT_EVENT_RESULT action = (packet == PUBACK_TYPE) ? MQTT_CLIENT_ON_PUBLISH_ACK :
AzureIoTClient 3:9b4e7158ca0d 425 (packet == PUBREC_TYPE) ? MQTT_CLIENT_ON_PUBLISH_RECV :
AzureIoTClient 3:9b4e7158ca0d 426 (packet == PUBREL_TYPE) ? MQTT_CLIENT_ON_PUBLISH_REL : MQTT_CLIENT_ON_PUBLISH_COMP;
AzureIoTClient 3:9b4e7158ca0d 427
AzureIoTClient 3:9b4e7158ca0d 428 PUBLISH_ACK publish_ack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 429 publish_ack.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 430
Azure.IoT Build 0:ef4901974abc 431 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 3:9b4e7158ca0d 432 mqttData->fnOperationCallback(mqttData, action, (void*)&publish_ack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 433 if (packet == PUBREC_TYPE)
Azure.IoT Build 0:ef4901974abc 434 {
AzureIoTClient 3:9b4e7158ca0d 435 pubRel = mqtt_codec_publishRelease(publish_ack.packetId);
Azure.IoT Build 0:ef4901974abc 436 }
AzureIoTClient 3:9b4e7158ca0d 437 else if (packet == PUBREL_TYPE)
Azure.IoT Build 0:ef4901974abc 438 {
AzureIoTClient 3:9b4e7158ca0d 439 pubRel = mqtt_codec_publishComplete(publish_ack.packetId);
Azure.IoT Build 0:ef4901974abc 440 }
Azure.IoT Build 0:ef4901974abc 441 if (pubRel != NULL)
Azure.IoT Build 0:ef4901974abc 442 {
Azure.IoT Build 0:ef4901974abc 443 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
Azure.IoT Build 0:ef4901974abc 444 BUFFER_delete(pubRel);
Azure.IoT Build 0:ef4901974abc 445 }
Azure.IoT Build 0:ef4901974abc 446 }
AzureIoTClient 3:9b4e7158ca0d 447 break;
Azure.IoT Build 0:ef4901974abc 448 }
AzureIoTClient 3:9b4e7158ca0d 449 case SUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 450 {
AzureIoTClient 3:9b4e7158ca0d 451 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 452 {
AzureIoTClient 3:9b4e7158ca0d 453 /*Codes_SRS_MQTT_CLIENT_07_030: [If the actionResult parameter is of type SUBACK_TYPE then the msgInfo value shall be a SUBSCRIBE_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 454 SUBSCRIBE_ACK suback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 455
AzureIoTClient 3:9b4e7158ca0d 456 size_t remainLen = len;
AzureIoTClient 3:9b4e7158ca0d 457 suback.packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 3:9b4e7158ca0d 458 remainLen -= 2;
Azure.IoT Build 0:ef4901974abc 459
AzureIoTClient 3:9b4e7158ca0d 460 // Allocate the remaining len
AzureIoTClient 3:9b4e7158ca0d 461 suback.qosReturn = (QOS_VALUE*)malloc(sizeof(QOS_VALUE)*remainLen);
AzureIoTClient 3:9b4e7158ca0d 462 if (suback.qosReturn != NULL)
Azure.IoT Build 0:ef4901974abc 463 {
AzureIoTClient 3:9b4e7158ca0d 464 while (remainLen > 0)
AzureIoTClient 3:9b4e7158ca0d 465 {
AzureIoTClient 3:9b4e7158ca0d 466 suback.qosReturn[suback.qosCount++] = byteutil_readByte(&iterator);
AzureIoTClient 3:9b4e7158ca0d 467 remainLen--;
AzureIoTClient 3:9b4e7158ca0d 468 }
AzureIoTClient 3:9b4e7158ca0d 469 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_SUBSCRIBE_ACK, (void*)&suback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 470 free(suback.qosReturn);
Azure.IoT Build 0:ef4901974abc 471 }
Azure.IoT Build 0:ef4901974abc 472 }
AzureIoTClient 3:9b4e7158ca0d 473 break;
Azure.IoT Build 0:ef4901974abc 474 }
AzureIoTClient 3:9b4e7158ca0d 475 case UNSUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 476 {
AzureIoTClient 3:9b4e7158ca0d 477 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 478 {
AzureIoTClient 3:9b4e7158ca0d 479 /*Codes_SRS_MQTT_CLIENT_07_031: [If the actionResult parameter is of type UNSUBACK_TYPE then the msgInfo value shall be a UNSUBSCRIBE_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 480 UNSUBSCRIBE_ACK unsuback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 481 iterator += VARIABLE_HEADER_OFFSET;
AzureIoTClient 3:9b4e7158ca0d 482 unsuback.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 483
AzureIoTClient 3:9b4e7158ca0d 484 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_UNSUBSCRIBE_ACK, (void*)&unsuback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 485 }
AzureIoTClient 3:9b4e7158ca0d 486 break;
Azure.IoT Build 0:ef4901974abc 487 }
AzureIoTClient 3:9b4e7158ca0d 488 case PINGRESP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 489 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 490 // Ping responses do not get forwarded
AzureIoTClient 3:9b4e7158ca0d 491 break;
AzureIoTClient 3:9b4e7158ca0d 492 default:
AzureIoTClient 3:9b4e7158ca0d 493 break;
Azure.IoT Build 0:ef4901974abc 494 }
Azure.IoT Build 0:ef4901974abc 495 }
Azure.IoT Build 0:ef4901974abc 496 }
Azure.IoT Build 0:ef4901974abc 497 }
Azure.IoT Build 0:ef4901974abc 498
Azure.IoT Build 4:e7167dabd6e4 499 MQTT_CLIENT_HANDLE mqtt_client_init(ON_MQTT_MESSAGE_RECV_CALLBACK msgRecv, ON_MQTT_OPERATION_CALLBACK opCallback, void* callbackCtx)
Azure.IoT Build 0:ef4901974abc 500 {
Azure.IoT Build 0:ef4901974abc 501 MQTT_CLIENT* result;
Azure.IoT Build 0:ef4901974abc 502 /*Codes_SRS_MQTT_CLIENT_07_001: [If the parameters ON_MQTT_MESSAGE_RECV_CALLBACK is NULL then mqttclient_init shall return NULL.]*/
Azure.IoT Build 0:ef4901974abc 503 if (msgRecv == NULL)
Azure.IoT Build 0:ef4901974abc 504 {
Azure.IoT Build 0:ef4901974abc 505 result = NULL;
Azure.IoT Build 0:ef4901974abc 506 }
Azure.IoT Build 0:ef4901974abc 507 else
Azure.IoT Build 0:ef4901974abc 508 {
Azure.IoT Build 0:ef4901974abc 509 result = malloc(sizeof(MQTT_CLIENT));
Azure.IoT Build 0:ef4901974abc 510 if (result == NULL)
Azure.IoT Build 0:ef4901974abc 511 {
Azure.IoT Build 0:ef4901974abc 512 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 513 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: Allocation Failure");
Azure.IoT Build 0:ef4901974abc 514 }
Azure.IoT Build 0:ef4901974abc 515 else
Azure.IoT Build 0:ef4901974abc 516 {
Azure.IoT Build 0:ef4901974abc 517 /*Codes_SRS_MQTT_CLIENT_07_003: [mqttclient_init shall allocate MQTTCLIENT_DATA_INSTANCE and return the MQTTCLIENT_HANDLE on success.]*/
Azure.IoT Build 0:ef4901974abc 518 result->xioHandle = NULL;
Azure.IoT Build 0:ef4901974abc 519 result->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 520 result->packetSendTimeMs = 0;
Azure.IoT Build 0:ef4901974abc 521 result->fnOperationCallback = opCallback;
Azure.IoT Build 0:ef4901974abc 522 result->fnMessageRecv = msgRecv;
Azure.IoT Build 0:ef4901974abc 523 result->ctx = callbackCtx;
Azure.IoT Build 0:ef4901974abc 524 result->qosValue = DELIVER_AT_MOST_ONCE;
Azure.IoT Build 0:ef4901974abc 525 result->keepAliveInterval = 0;
Azure.IoT Build 0:ef4901974abc 526 result->packetTickCntr = tickcounter_create();
Azure.IoT Build 0:ef4901974abc 527 result->mqttOptions.clientId = NULL;
Azure.IoT Build 0:ef4901974abc 528 result->mqttOptions.willTopic = NULL;
Azure.IoT Build 0:ef4901974abc 529 result->mqttOptions.willMessage = NULL;
Azure.IoT Build 0:ef4901974abc 530 result->mqttOptions.username = NULL;
Azure.IoT Build 0:ef4901974abc 531 result->mqttOptions.password = NULL;
Azure.IoT Build 0:ef4901974abc 532 result->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 533 result->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 534 result->logTrace = false;
Azure.IoT Build 0:ef4901974abc 535 result->rawBytesTrace = false;
AzureIoTClient 3:9b4e7158ca0d 536 result->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 537 result->maxPingRespTime = DEFAULT_MAX_PING_RESPONSE_TIME;
Azure.IoT Build 0:ef4901974abc 538 if (result->packetTickCntr == NULL)
Azure.IoT Build 0:ef4901974abc 539 {
Azure.IoT Build 0:ef4901974abc 540 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 541 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: tickcounter_create failure");
Azure.IoT Build 0:ef4901974abc 542 free(result);
Azure.IoT Build 0:ef4901974abc 543 result = NULL;
Azure.IoT Build 0:ef4901974abc 544 }
Azure.IoT Build 0:ef4901974abc 545 else
Azure.IoT Build 0:ef4901974abc 546 {
Azure.IoT Build 0:ef4901974abc 547 result->codec_handle = mqtt_codec_create(recvCompleteCallback, result);
Azure.IoT Build 0:ef4901974abc 548 if (result->codec_handle == NULL)
Azure.IoT Build 0:ef4901974abc 549 {
Azure.IoT Build 0:ef4901974abc 550 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 551 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: mqtt_codec_create failure");
Azure.IoT Build 0:ef4901974abc 552 tickcounter_destroy(result->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 553 free(result);
Azure.IoT Build 0:ef4901974abc 554 result = NULL;
Azure.IoT Build 0:ef4901974abc 555 }
Azure.IoT Build 0:ef4901974abc 556 }
Azure.IoT Build 0:ef4901974abc 557 }
Azure.IoT Build 0:ef4901974abc 558 }
Azure.IoT Build 0:ef4901974abc 559 return result;
Azure.IoT Build 0:ef4901974abc 560 }
Azure.IoT Build 0:ef4901974abc 561
Azure.IoT Build 0:ef4901974abc 562 void mqtt_client_deinit(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 563 {
Azure.IoT Build 0:ef4901974abc 564 /*Codes_SRS_MQTT_CLIENT_07_004: [If the parameter handle is NULL then function mqtt_client_deinit shall do nothing.]*/
Azure.IoT Build 0:ef4901974abc 565 if (handle != NULL)
Azure.IoT Build 0:ef4901974abc 566 {
Azure.IoT Build 0:ef4901974abc 567 /*Codes_SRS_MQTT_CLIENT_07_005: [mqtt_client_deinit shall deallocate all memory allocated in this unit.]*/
Azure.IoT Build 0:ef4901974abc 568 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 569 tickcounter_destroy(mqttData->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 570 mqtt_codec_destroy(mqttData->codec_handle);
Azure.IoT Build 0:ef4901974abc 571 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 572 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 573 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 574 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 575 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 576 free(mqttData);
Azure.IoT Build 0:ef4901974abc 577 }
Azure.IoT Build 0:ef4901974abc 578 }
Azure.IoT Build 0:ef4901974abc 579
Azure.IoT Build 0:ef4901974abc 580 int mqtt_client_connect(MQTT_CLIENT_HANDLE handle, XIO_HANDLE xioHandle, MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 581 {
Azure.IoT Build 0:ef4901974abc 582 int result;
Azure.IoT Build 0:ef4901974abc 583 /*SRS_MQTT_CLIENT_07_006: [If any of the parameters handle, ioHandle, or mqttOptions are NULL then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 584 if (handle == NULL || mqttOptions == NULL)
Azure.IoT Build 0:ef4901974abc 585 {
Azure.IoT Build 0:ef4901974abc 586 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 587 }
Azure.IoT Build 0:ef4901974abc 588 else
Azure.IoT Build 0:ef4901974abc 589 {
Azure.IoT Build 0:ef4901974abc 590 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 591 if (xioHandle == NULL)
Azure.IoT Build 0:ef4901974abc 592 {
Azure.IoT Build 0:ef4901974abc 593 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 594 LOG(LOG_ERROR, LOG_LINE, "Error: mqttcodec_connect failed");
Azure.IoT Build 0:ef4901974abc 595 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 596 }
Azure.IoT Build 0:ef4901974abc 597 else
Azure.IoT Build 0:ef4901974abc 598 {
Azure.IoT Build 0:ef4901974abc 599 mqttData->xioHandle = xioHandle;
Azure.IoT Build 0:ef4901974abc 600 mqttData->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 601 mqttData->qosValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 602 mqttData->keepAliveInterval = mqttOptions->keepAliveInterval;
AzureIoTClient 3:9b4e7158ca0d 603 mqttData->maxPingRespTime = (DEFAULT_MAX_PING_RESPONSE_TIME < mqttOptions->keepAliveInterval/2) ? DEFAULT_MAX_PING_RESPONSE_TIME : mqttOptions->keepAliveInterval/2;
Azure.IoT Build 0:ef4901974abc 604 if (cloneMqttOptions(mqttData, mqttOptions) != 0)
Azure.IoT Build 0:ef4901974abc 605 {
Azure.IoT Build 4:e7167dabd6e4 606 LOG(LOG_ERROR, LOG_LINE, "Error: Clone Mqtt Options failed");
Azure.IoT Build 0:ef4901974abc 607 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 608 }
Azure.IoT Build 0:ef4901974abc 609 /*Codes_SRS_MQTT_CLIENT_07_008: [mqtt_client_connect shall open the XIO_HANDLE by calling into the xio_open interface.]*/
Azure.IoT Build 0:ef4901974abc 610 else if (xio_open(xioHandle, onOpenComplete, mqttData, onBytesReceived, mqttData, onIoError, mqttData) != 0)
Azure.IoT Build 0:ef4901974abc 611 {
Azure.IoT Build 0:ef4901974abc 612 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 613 LOG(LOG_ERROR, LOG_LINE, "Error: io_open failed");
Azure.IoT Build 0:ef4901974abc 614 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 615 }
Azure.IoT Build 0:ef4901974abc 616 else
Azure.IoT Build 0:ef4901974abc 617 {
Azure.IoT Build 0:ef4901974abc 618 result = 0;
Azure.IoT Build 0:ef4901974abc 619 }
Azure.IoT Build 0:ef4901974abc 620 }
Azure.IoT Build 0:ef4901974abc 621 }
Azure.IoT Build 0:ef4901974abc 622 return result;
Azure.IoT Build 0:ef4901974abc 623 }
Azure.IoT Build 0:ef4901974abc 624
Azure.IoT Build 0:ef4901974abc 625 int mqtt_client_publish(MQTT_CLIENT_HANDLE handle, MQTT_MESSAGE_HANDLE msgHandle)
Azure.IoT Build 0:ef4901974abc 626 {
Azure.IoT Build 0:ef4901974abc 627 int result;
Azure.IoT Build 0:ef4901974abc 628 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 629 if (mqttData == NULL || msgHandle == NULL)
Azure.IoT Build 0:ef4901974abc 630 {
Azure.IoT Build 0:ef4901974abc 631 /*Codes_SRS_MQTT_CLIENT_07_019: [If one of the parameters handle or msgHandle is NULL then mqtt_client_publish shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 632 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 633 }
Azure.IoT Build 0:ef4901974abc 634 else
Azure.IoT Build 0:ef4901974abc 635 {
Azure.IoT Build 0:ef4901974abc 636 /*Codes_SRS_MQTT_CLIENT_07_021: [mqtt_client_publish shall get the message information from the MQTT_MESSAGE_HANDLE.]*/
Azure.IoT Build 0:ef4901974abc 637 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
Azure.IoT Build 0:ef4901974abc 638 if (payload == NULL)
Azure.IoT Build 0:ef4901974abc 639 {
Azure.IoT Build 0:ef4901974abc 640 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 641 LOG(LOG_ERROR, LOG_LINE, "Error: mqttmessage_getApplicationMsg failed");
Azure.IoT Build 0:ef4901974abc 642 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 643 }
Azure.IoT Build 0:ef4901974abc 644 else
Azure.IoT Build 0:ef4901974abc 645 {
Azure.IoT Build 0:ef4901974abc 646 BUFFER_HANDLE publishPacket = mqtt_codec_publish(mqttmessage_getQosType(msgHandle), mqttmessage_getIsDuplicateMsg(msgHandle),
Azure.IoT Build 0:ef4901974abc 647 mqttmessage_getIsRetained(msgHandle), mqttmessage_getPacketId(msgHandle), mqttmessage_getTopicName(msgHandle), payload->message, payload->length);
Azure.IoT Build 0:ef4901974abc 648 if (publishPacket == NULL)
Azure.IoT Build 0:ef4901974abc 649 {
Azure.IoT Build 0:ef4901974abc 650 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 651 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_publish failed");
Azure.IoT Build 0:ef4901974abc 652 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 653 }
Azure.IoT Build 0:ef4901974abc 654 else
Azure.IoT Build 0:ef4901974abc 655 {
Azure.IoT Build 0:ef4901974abc 656 mqttData->packetState = PUBLISH_TYPE;
Azure.IoT Build 0:ef4901974abc 657
Azure.IoT Build 0:ef4901974abc 658 /*Codes_SRS_MQTT_CLIENT_07_022: [On success mqtt_client_publish shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 659 if (sendPacketItem(mqttData, BUFFER_u_char(publishPacket), BUFFER_length(publishPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 660 {
Azure.IoT Build 0:ef4901974abc 661 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 662 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_publish send failed");
Azure.IoT Build 0:ef4901974abc 663 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 664 }
Azure.IoT Build 0:ef4901974abc 665 else
Azure.IoT Build 0:ef4901974abc 666 {
Azure.IoT Build 0:ef4901974abc 667 result = 0;
Azure.IoT Build 0:ef4901974abc 668 }
Azure.IoT Build 0:ef4901974abc 669 BUFFER_delete(publishPacket);
Azure.IoT Build 0:ef4901974abc 670 }
Azure.IoT Build 0:ef4901974abc 671 }
Azure.IoT Build 0:ef4901974abc 672 }
Azure.IoT Build 0:ef4901974abc 673 return result;
Azure.IoT Build 0:ef4901974abc 674 }
Azure.IoT Build 0:ef4901974abc 675
Azure.IoT Build 0:ef4901974abc 676 int mqtt_client_subscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, SUBSCRIBE_PAYLOAD* subscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 677 {
Azure.IoT Build 0:ef4901974abc 678 int result;
Azure.IoT Build 0:ef4901974abc 679 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 680 if (mqttData == NULL || subscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 681 {
Azure.IoT Build 0:ef4901974abc 682 /*Codes_SRS_MQTT_CLIENT_07_013: [If any of the parameters handle, subscribeList is NULL or count is 0 then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 683 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 684 }
Azure.IoT Build 0:ef4901974abc 685 else
Azure.IoT Build 0:ef4901974abc 686 {
Azure.IoT Build 0:ef4901974abc 687 BUFFER_HANDLE subPacket = mqtt_codec_subscribe(packetId, subscribeList, count);
Azure.IoT Build 0:ef4901974abc 688 if (subPacket == NULL)
Azure.IoT Build 0:ef4901974abc 689 {
Azure.IoT Build 0:ef4901974abc 690 /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 691 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_subscribe failed");
Azure.IoT Build 0:ef4901974abc 692 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 693 }
Azure.IoT Build 0:ef4901974abc 694 else
Azure.IoT Build 0:ef4901974abc 695 {
Azure.IoT Build 0:ef4901974abc 696 mqttData->packetState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 697
Azure.IoT Build 0:ef4901974abc 698 /*Codes_SRS_MQTT_CLIENT_07_015: [On success mqtt_client_subscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 699 if (sendPacketItem(mqttData, BUFFER_u_char(subPacket), BUFFER_length(subPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 700 {
Azure.IoT Build 0:ef4901974abc 701 /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 702 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_subscribe send failed");
Azure.IoT Build 0:ef4901974abc 703 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 704 }
Azure.IoT Build 0:ef4901974abc 705 else
Azure.IoT Build 0:ef4901974abc 706 {
Azure.IoT Build 0:ef4901974abc 707 result = 0;
Azure.IoT Build 0:ef4901974abc 708 }
Azure.IoT Build 0:ef4901974abc 709 BUFFER_delete(subPacket);
Azure.IoT Build 0:ef4901974abc 710 }
Azure.IoT Build 0:ef4901974abc 711 }
Azure.IoT Build 0:ef4901974abc 712 return result;
Azure.IoT Build 0:ef4901974abc 713 }
Azure.IoT Build 0:ef4901974abc 714
Azure.IoT Build 0:ef4901974abc 715 int mqtt_client_unsubscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, const char** unsubscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 716 {
Azure.IoT Build 0:ef4901974abc 717 int result;
Azure.IoT Build 0:ef4901974abc 718 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 719 if (mqttData == NULL || unsubscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 720 {
Azure.IoT Build 0:ef4901974abc 721 /*Codes_SRS_MQTT_CLIENT_07_016: [If any of the parameters handle, unsubscribeList is NULL or count is 0 then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 722 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 723 }
Azure.IoT Build 0:ef4901974abc 724 else
Azure.IoT Build 0:ef4901974abc 725 {
Azure.IoT Build 0:ef4901974abc 726 BUFFER_HANDLE unsubPacket = mqtt_codec_unsubscribe(packetId, unsubscribeList, count);
Azure.IoT Build 0:ef4901974abc 727 if (unsubPacket == NULL)
Azure.IoT Build 0:ef4901974abc 728 {
Azure.IoT Build 0:ef4901974abc 729 /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 730 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_unsubscribe failed");
Azure.IoT Build 0:ef4901974abc 731 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 732 }
Azure.IoT Build 0:ef4901974abc 733 else
Azure.IoT Build 0:ef4901974abc 734 {
Azure.IoT Build 0:ef4901974abc 735 mqttData->packetState = UNSUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 736
Azure.IoT Build 0:ef4901974abc 737 /*Codes_SRS_MQTT_CLIENT_07_018: [On success mqtt_client_unsubscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 738 if (sendPacketItem(mqttData, BUFFER_u_char(unsubPacket), BUFFER_length(unsubPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 739 {
Azure.IoT Build 0:ef4901974abc 740 /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.].]*/
Azure.IoT Build 4:e7167dabd6e4 741 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_unsubscribe send failed");
Azure.IoT Build 0:ef4901974abc 742 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 743 }
Azure.IoT Build 0:ef4901974abc 744 else
Azure.IoT Build 0:ef4901974abc 745 {
Azure.IoT Build 0:ef4901974abc 746 result = 0;
Azure.IoT Build 0:ef4901974abc 747 }
Azure.IoT Build 0:ef4901974abc 748 BUFFER_delete(unsubPacket);
Azure.IoT Build 0:ef4901974abc 749 }
Azure.IoT Build 0:ef4901974abc 750 }
Azure.IoT Build 0:ef4901974abc 751 return result;
Azure.IoT Build 0:ef4901974abc 752 }
Azure.IoT Build 0:ef4901974abc 753
Azure.IoT Build 0:ef4901974abc 754 int mqtt_client_disconnect(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 755 {
Azure.IoT Build 0:ef4901974abc 756 int result;
Azure.IoT Build 0:ef4901974abc 757 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 758 if (mqttData == NULL)
Azure.IoT Build 0:ef4901974abc 759 {
Azure.IoT Build 0:ef4901974abc 760 /*Codes_SRS_MQTT_CLIENT_07_010: [If the parameters handle is NULL then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 761 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 762 }
Azure.IoT Build 0:ef4901974abc 763 else
Azure.IoT Build 0:ef4901974abc 764 {
Azure.IoT Build 0:ef4901974abc 765 BUFFER_HANDLE disconnectPacket = mqtt_codec_disconnect();
Azure.IoT Build 0:ef4901974abc 766 if (disconnectPacket == NULL)
Azure.IoT Build 0:ef4901974abc 767 {
Azure.IoT Build 0:ef4901974abc 768 /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 769 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_disconnect failed");
Azure.IoT Build 4:e7167dabd6e4 770 mqttData->packetState = PACKET_TYPE_ERROR;
Azure.IoT Build 0:ef4901974abc 771 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 772 }
Azure.IoT Build 0:ef4901974abc 773 else
Azure.IoT Build 0:ef4901974abc 774 {
Azure.IoT Build 0:ef4901974abc 775 mqttData->packetState = DISCONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 776
Azure.IoT Build 0:ef4901974abc 777 /*Codes_SRS_MQTT_CLIENT_07_012: [On success mqtt_client_disconnect shall send the MQTT DISCONNECT packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 778 if (sendPacketItem(mqttData, BUFFER_u_char(disconnectPacket), BUFFER_length(disconnectPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 779 {
Azure.IoT Build 0:ef4901974abc 780 /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 4:e7167dabd6e4 781 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_disconnect send failed");
Azure.IoT Build 0:ef4901974abc 782 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 783 }
Azure.IoT Build 0:ef4901974abc 784 else
Azure.IoT Build 0:ef4901974abc 785 {
Azure.IoT Build 0:ef4901974abc 786 result = 0;
Azure.IoT Build 0:ef4901974abc 787 }
Azure.IoT Build 0:ef4901974abc 788 BUFFER_delete(disconnectPacket);
Azure.IoT Build 0:ef4901974abc 789 }
Azure.IoT Build 0:ef4901974abc 790 }
Azure.IoT Build 0:ef4901974abc 791 return result;
Azure.IoT Build 0:ef4901974abc 792 }
Azure.IoT Build 0:ef4901974abc 793
Azure.IoT Build 0:ef4901974abc 794 void mqtt_client_dowork(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 795 {
Azure.IoT Build 0:ef4901974abc 796 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 797 /*Codes_SRS_MQTT_CLIENT_07_023: [If the parameter handle is NULL then mqtt_client_dowork shall do nothing.]*/
Azure.IoT Build 0:ef4901974abc 798 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 799 {
Azure.IoT Build 0:ef4901974abc 800 /*Codes_SRS_MQTT_CLIENT_07_024: [mqtt_client_dowork shall call the xio_dowork function to complete operations.]*/
Azure.IoT Build 0:ef4901974abc 801 xio_dowork(mqttData->xioHandle);
Azure.IoT Build 0:ef4901974abc 802
Azure.IoT Build 0:ef4901974abc 803 /*Codes_SRS_MQTT_CLIENT_07_025: [mqtt_client_dowork shall retrieve the the last packet send value and ...]*/
Azure.IoT Build 0:ef4901974abc 804 if (mqttData->socketConnected && mqttData->clientConnected && mqttData->keepAliveInterval > 0)
Azure.IoT Build 0:ef4901974abc 805 {
Azure.IoT Build 0:ef4901974abc 806 uint64_t current_ms;
Azure.IoT Build 0:ef4901974abc 807 if (tickcounter_get_current_ms(mqttData->packetTickCntr, &current_ms) != 0)
Azure.IoT Build 0:ef4901974abc 808 {
Azure.IoT Build 4:e7167dabd6e4 809 LOG(LOG_ERROR, LOG_LINE, "Error: tickcounter_get_current_ms failed");
Azure.IoT Build 0:ef4901974abc 810 }
Azure.IoT Build 0:ef4901974abc 811 else
Azure.IoT Build 0:ef4901974abc 812 {
AzureIoTClient 3:9b4e7158ca0d 813 /* Codes_SRS_MQTT_CLIENT_07_035: [If the timeSincePing has expired past the maxPingRespTime then mqtt_client_dowork shall call the Operation Callback function with the message MQTT_CLIENT_NO_PING_RESPONSE] */
AzureIoTClient 3:9b4e7158ca0d 814 if (mqttData->timeSincePing > 0 && ((current_ms - mqttData->timeSincePing)/1000) > mqttData->maxPingRespTime)
AzureIoTClient 3:9b4e7158ca0d 815 {
AzureIoTClient 3:9b4e7158ca0d 816 // We haven't gotten a ping response in the alloted time
AzureIoTClient 3:9b4e7158ca0d 817 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 818 {
AzureIoTClient 3:9b4e7158ca0d 819 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_NO_PING_RESPONSE, NULL, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 820 }
AzureIoTClient 3:9b4e7158ca0d 821 mqttData->socketConnected = false;
AzureIoTClient 3:9b4e7158ca0d 822 mqttData->clientConnected = false;
AzureIoTClient 3:9b4e7158ca0d 823 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 824 mqttData->packetSendTimeMs = 0;
AzureIoTClient 3:9b4e7158ca0d 825 mqttData->packetState = UNKNOWN_TYPE;
AzureIoTClient 3:9b4e7158ca0d 826 }
AzureIoTClient 3:9b4e7158ca0d 827 else if ((((current_ms - mqttData->packetSendTimeMs) / 1000) + KEEP_ALIVE_BUFFER_SEC) > mqttData->keepAliveInterval)
Azure.IoT Build 0:ef4901974abc 828 {
Azure.IoT Build 0:ef4901974abc 829 /*Codes_SRS_MQTT_CLIENT_07_026: [if keepAliveInternal is > 0 and the send time is greater than the MQTT KeepAliveInterval then it shall construct an MQTT PINGREQ packet.]*/
Azure.IoT Build 0:ef4901974abc 830 BUFFER_HANDLE pingPacket = mqtt_codec_ping();
Azure.IoT Build 0:ef4901974abc 831 if (pingPacket != NULL)
Azure.IoT Build 0:ef4901974abc 832 {
Azure.IoT Build 0:ef4901974abc 833 (void)sendPacketItem(mqttData, BUFFER_u_char(pingPacket), BUFFER_length(pingPacket));
Azure.IoT Build 0:ef4901974abc 834 BUFFER_delete(pingPacket);
AzureIoTClient 3:9b4e7158ca0d 835 (void)tickcounter_get_current_ms(mqttData->packetTickCntr, &mqttData->timeSincePing);
Azure.IoT Build 0:ef4901974abc 836 }
Azure.IoT Build 0:ef4901974abc 837 }
Azure.IoT Build 0:ef4901974abc 838 }
Azure.IoT Build 0:ef4901974abc 839 }
Azure.IoT Build 0:ef4901974abc 840 }
Azure.IoT Build 0:ef4901974abc 841 }
Azure.IoT Build 0:ef4901974abc 842
Azure.IoT Build 0:ef4901974abc 843 void mqtt_client_set_trace(MQTT_CLIENT_HANDLE handle, bool traceOn, bool rawBytesOn)
Azure.IoT Build 0:ef4901974abc 844 {
Azure.IoT Build 0:ef4901974abc 845 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 846 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 847 {
Azure.IoT Build 0:ef4901974abc 848 mqttData->logTrace = traceOn;
Azure.IoT Build 0:ef4901974abc 849 mqttData->rawBytesTrace = rawBytesOn;
Azure.IoT Build 0:ef4901974abc 850 }
Azure.IoT Build 0:ef4901974abc 851 }