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@5:34779607059c, 2016-07-29 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jul 29 15:58:49 2016 -0700
Revision:
5:34779607059c
Parent:
4:e7167dabd6e4
Child:
6:d9c4702f91ca
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;
AzureIoTClient 5:34779607059c 98 if (mqttData != NULL && mqttData->fnOperationCallback != NULL && send_result == IO_SEND_OK)
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
AzureIoTClient 5:34779607059c 106 if (xio_close(mqttData->xioHandle, NULL, mqttData->ctx) != 0)
AzureIoTClient 5:34779607059c 107 {
AzureIoTClient 5:34779607059c 108 LOG(LOG_ERROR, LOG_LINE, "MQTT xio_close failed to return a successful result.");
AzureIoTClient 5:34779607059c 109 }
Azure.IoT Build 0:ef4901974abc 110 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 111 mqttData->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 112 }
Azure.IoT Build 0:ef4901974abc 113 }
AzureIoTClient 5:34779607059c 114 else
AzureIoTClient 5:34779607059c 115 {
AzureIoTClient 5:34779607059c 116 LOG(LOG_ERROR, LOG_LINE, "MQTT Send Complete Failure");
AzureIoTClient 5:34779607059c 117 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 118 {
AzureIoTClient 5:34779607059c 119 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 120 }
AzureIoTClient 5:34779607059c 121 }
Azure.IoT Build 0:ef4901974abc 122 }
Azure.IoT Build 0:ef4901974abc 123
Azure.IoT Build 0:ef4901974abc 124 static const char* retrievePacketType(CONTROL_PACKET_TYPE packet)
Azure.IoT Build 0:ef4901974abc 125 {
Azure.IoT Build 0:ef4901974abc 126 switch (packet&CONNECT_PACKET_MASK)
Azure.IoT Build 0:ef4901974abc 127 {
Azure.IoT Build 0:ef4901974abc 128 case CONNECT_TYPE: return "CONNECT";
Azure.IoT Build 0:ef4901974abc 129 case CONNACK_TYPE: return "CONNACK";
Azure.IoT Build 0:ef4901974abc 130 case PUBLISH_TYPE: return "PUBLISH";
Azure.IoT Build 0:ef4901974abc 131 case PUBACK_TYPE: return "PUBACK";
Azure.IoT Build 0:ef4901974abc 132 case PUBREC_TYPE: return "PUBREC";
Azure.IoT Build 0:ef4901974abc 133 case PUBREL_TYPE: return "PUBREL";
Azure.IoT Build 0:ef4901974abc 134 case SUBSCRIBE_TYPE: return "SUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 135 case SUBACK_TYPE: return "SUBACK";
Azure.IoT Build 0:ef4901974abc 136 case UNSUBSCRIBE_TYPE: return "UNSUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 137 case UNSUBACK_TYPE: return "UNSUBACK";
Azure.IoT Build 0:ef4901974abc 138 case PINGREQ_TYPE: return "PINGREQ";
Azure.IoT Build 0:ef4901974abc 139 case PINGRESP_TYPE: return "PINGRESP";
Azure.IoT Build 0:ef4901974abc 140 case DISCONNECT_TYPE: return "DISCONNECT";
Azure.IoT Build 0:ef4901974abc 141 default:
Azure.IoT Build 0:ef4901974abc 142 case PACKET_TYPE_ERROR:
Azure.IoT Build 0:ef4901974abc 143 case UNKNOWN_TYPE:
Azure.IoT Build 0:ef4901974abc 144 return "UNKNOWN";
Azure.IoT Build 0:ef4901974abc 145 }
Azure.IoT Build 0:ef4901974abc 146 }
Azure.IoT Build 0:ef4901974abc 147
AzureIoTClient 1:8dba42ff9701 148 static void getLogTime(char* timeResult, size_t len)
AzureIoTClient 1:8dba42ff9701 149 {
AzureIoTClient 1:8dba42ff9701 150 if (timeResult != NULL)
AzureIoTClient 1:8dba42ff9701 151 {
AzureIoTClient 1:8dba42ff9701 152 time_t localTime = time(NULL);
AzureIoTClient 1:8dba42ff9701 153 struct tm* tmInfo = localtime(&localTime);
AzureIoTClient 1:8dba42ff9701 154 if (strftime(timeResult, len, "%H:%M:%S", tmInfo) == 0)
AzureIoTClient 1:8dba42ff9701 155 {
AzureIoTClient 1:8dba42ff9701 156 timeResult[0] = '\0';
AzureIoTClient 1:8dba42ff9701 157 }
AzureIoTClient 1:8dba42ff9701 158 }
AzureIoTClient 1:8dba42ff9701 159 }
AzureIoTClient 1:8dba42ff9701 160
Azure.IoT Build 0:ef4901974abc 161 static void logOutgoingingMsgTrace(MQTT_CLIENT* clientData, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 162 {
Azure.IoT Build 0:ef4901974abc 163 if (clientData != NULL && data != NULL && length > 0 && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 164 {
AzureIoTClient 1:8dba42ff9701 165 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 1:8dba42ff9701 166 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 167
Azure.IoT Build 4:e7167dabd6e4 168 LOG(LOG_TRACE, 0, "-> %s %s: ", tmBuffer, retrievePacketType((unsigned char)data[0]));
Azure.IoT Build 0:ef4901974abc 169 for (size_t index = 0; index < length; index++)
Azure.IoT Build 0:ef4901974abc 170 {
Azure.IoT Build 4:e7167dabd6e4 171 LOG(LOG_TRACE, 0, (char*)FORMAT_HEX_CHAR, data[index]);
Azure.IoT Build 0:ef4901974abc 172 }
Azure.IoT Build 4:e7167dabd6e4 173
Azure.IoT Build 4:e7167dabd6e4 174 LOG(LOG_TRACE, LOG_LINE, "");
Azure.IoT Build 0:ef4901974abc 175 }
Azure.IoT Build 0:ef4901974abc 176 }
Azure.IoT Build 0:ef4901974abc 177
Azure.IoT Build 0:ef4901974abc 178 static void logIncomingMsgTrace(MQTT_CLIENT* clientData, CONTROL_PACKET_TYPE packet, int flags, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 179 {
AzureIoTClient 3:9b4e7158ca0d 180 if (clientData != NULL && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 181 {
AzureIoTClient 3:9b4e7158ca0d 182 if (data != NULL && length > 0)
AzureIoTClient 3:9b4e7158ca0d 183 {
AzureIoTClient 3:9b4e7158ca0d 184 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 185 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 186
Azure.IoT Build 4:e7167dabd6e4 187 LOG(LOG_TRACE, 0, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((CONTROL_PACKET_TYPE)packet), (unsigned char)(packet | flags), length);
AzureIoTClient 3:9b4e7158ca0d 188 for (size_t index = 0; index < length; index++)
AzureIoTClient 3:9b4e7158ca0d 189 {
Azure.IoT Build 4:e7167dabd6e4 190 LOG(LOG_TRACE, 0, (char*)FORMAT_HEX_CHAR, data[index]);
AzureIoTClient 3:9b4e7158ca0d 191 }
Azure.IoT Build 4:e7167dabd6e4 192
Azure.IoT Build 4:e7167dabd6e4 193 LOG(LOG_TRACE, LOG_LINE, "");
AzureIoTClient 3:9b4e7158ca0d 194 }
AzureIoTClient 3:9b4e7158ca0d 195 else if (packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 196 {
AzureIoTClient 3:9b4e7158ca0d 197 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 198 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 3:9b4e7158ca0d 199
Azure.IoT Build 4:e7167dabd6e4 200 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 201 }
Azure.IoT Build 0:ef4901974abc 202 }
Azure.IoT Build 0:ef4901974abc 203 }
Azure.IoT Build 0:ef4901974abc 204
Azure.IoT Build 4:e7167dabd6e4 205 static int sendPacketItem(MQTT_CLIENT* clientData, const unsigned char* data, size_t length)
Azure.IoT Build 0:ef4901974abc 206 {
Azure.IoT Build 0:ef4901974abc 207 int result;
Azure.IoT Build 0:ef4901974abc 208
Azure.IoT Build 0:ef4901974abc 209 if (tickcounter_get_current_ms(clientData->packetTickCntr, &clientData->packetSendTimeMs) != 0)
Azure.IoT Build 0:ef4901974abc 210 {
Azure.IoT Build 4:e7167dabd6e4 211 LOG(LOG_ERROR, LOG_LINE, "Failure getting current ms tickcounter");
Azure.IoT Build 0:ef4901974abc 212 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 213 }
Azure.IoT Build 0:ef4901974abc 214 else
Azure.IoT Build 0:ef4901974abc 215 {
Azure.IoT Build 4:e7167dabd6e4 216 result = xio_send(clientData->xioHandle, (const void*)data, length, sendComplete, clientData);
Azure.IoT Build 0:ef4901974abc 217 if (result != 0)
Azure.IoT Build 0:ef4901974abc 218 {
Azure.IoT Build 4:e7167dabd6e4 219 LOG(LOG_ERROR, LOG_LINE, "%d: Failure sending control packet data", result);
Azure.IoT Build 0:ef4901974abc 220 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 221 }
Azure.IoT Build 4:e7167dabd6e4 222 else
Azure.IoT Build 4:e7167dabd6e4 223 {
Azure.IoT Build 4:e7167dabd6e4 224 logOutgoingingMsgTrace(clientData, (const uint8_t*)data, length);
Azure.IoT Build 4:e7167dabd6e4 225 }
Azure.IoT Build 0:ef4901974abc 226 }
Azure.IoT Build 0:ef4901974abc 227 return result;
Azure.IoT Build 0:ef4901974abc 228 }
Azure.IoT Build 0:ef4901974abc 229
Azure.IoT Build 0:ef4901974abc 230 static void onOpenComplete(void* context, IO_OPEN_RESULT open_result)
Azure.IoT Build 0:ef4901974abc 231 {
Azure.IoT Build 0:ef4901974abc 232 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 233 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 234 {
Azure.IoT Build 0:ef4901974abc 235 if (open_result == IO_OPEN_OK && !mqttData->socketConnected)
Azure.IoT Build 0:ef4901974abc 236 {
Azure.IoT Build 0:ef4901974abc 237 mqttData->packetState = CONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 238 mqttData->socketConnected = true;
Azure.IoT Build 0:ef4901974abc 239 // Send the Connect packet
Azure.IoT Build 0:ef4901974abc 240 BUFFER_HANDLE connPacket = mqtt_codec_connect(&mqttData->mqttOptions);
Azure.IoT Build 0:ef4901974abc 241 if (connPacket == NULL)
Azure.IoT Build 0:ef4901974abc 242 {
Azure.IoT Build 0:ef4901974abc 243 /*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 244 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 245 }
Azure.IoT Build 0:ef4901974abc 246 else
Azure.IoT Build 0:ef4901974abc 247 {
Azure.IoT Build 0:ef4901974abc 248 /*Codes_SRS_MQTT_CLIENT_07_009: [On success mqtt_client_connect shall send the MQTT CONNECT to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 249 if (sendPacketItem(mqttData, BUFFER_u_char(connPacket), BUFFER_length(connPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 250 {
Azure.IoT Build 0:ef4901974abc 251 /*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 252 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 253 }
Azure.IoT Build 0:ef4901974abc 254 BUFFER_delete(connPacket);
Azure.IoT Build 0:ef4901974abc 255 }
Azure.IoT Build 0:ef4901974abc 256 }
Azure.IoT Build 0:ef4901974abc 257 else if (open_result == IO_OPEN_ERROR)
Azure.IoT Build 0:ef4901974abc 258 {
AzureIoTClient 5:34779607059c 259 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 260 }
Azure.IoT Build 0:ef4901974abc 261 }
Azure.IoT Build 0:ef4901974abc 262 }
Azure.IoT Build 0:ef4901974abc 263
Azure.IoT Build 0:ef4901974abc 264 static void onBytesReceived(void* context, const unsigned char* buffer, size_t size)
Azure.IoT Build 0:ef4901974abc 265 {
Azure.IoT Build 0:ef4901974abc 266 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 267 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 268 {
Azure.IoT Build 0:ef4901974abc 269 if (mqtt_codec_bytesReceived(mqttData->codec_handle, buffer, size) != 0)
Azure.IoT Build 0:ef4901974abc 270 {
Azure.IoT Build 0:ef4901974abc 271 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 272 {
Azure.IoT Build 0:ef4901974abc 273 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 274 }
Azure.IoT Build 0:ef4901974abc 275 }
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 void onIoError(void* context)
Azure.IoT Build 0:ef4901974abc 280 {
Azure.IoT Build 0:ef4901974abc 281 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 282 if (mqttData != NULL && mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 283 {
Azure.IoT Build 0:ef4901974abc 284 /*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 285 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 286 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 287 }
Azure.IoT Build 0:ef4901974abc 288 }
Azure.IoT Build 0:ef4901974abc 289
Azure.IoT Build 0:ef4901974abc 290 static int cloneMqttOptions(MQTT_CLIENT* mqttData, const MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 291 {
Azure.IoT Build 0:ef4901974abc 292 int result = 0;
Azure.IoT Build 0:ef4901974abc 293 if (mqttOptions->clientId != NULL)
Azure.IoT Build 0:ef4901974abc 294 {
Azure.IoT Build 0:ef4901974abc 295 if (mallocAndStrcpy_s(&mqttData->mqttOptions.clientId, mqttOptions->clientId) != 0)
Azure.IoT Build 0:ef4901974abc 296 {
Azure.IoT Build 0:ef4901974abc 297 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 298 }
Azure.IoT Build 0:ef4901974abc 299 }
Azure.IoT Build 0:ef4901974abc 300 if (result == 0 && mqttOptions->willTopic != NULL)
Azure.IoT Build 0:ef4901974abc 301 {
Azure.IoT Build 0:ef4901974abc 302 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willTopic, mqttOptions->willTopic) != 0)
Azure.IoT Build 0:ef4901974abc 303 {
Azure.IoT Build 0:ef4901974abc 304 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 305 }
Azure.IoT Build 0:ef4901974abc 306 }
Azure.IoT Build 0:ef4901974abc 307 if (result == 0 && mqttOptions->willMessage != NULL)
Azure.IoT Build 0:ef4901974abc 308 {
Azure.IoT Build 0:ef4901974abc 309 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willMessage, mqttOptions->willMessage) != 0)
Azure.IoT Build 0:ef4901974abc 310 {
Azure.IoT Build 0:ef4901974abc 311 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 312 }
Azure.IoT Build 0:ef4901974abc 313 }
Azure.IoT Build 0:ef4901974abc 314 if (result == 0 && mqttOptions->username != NULL)
Azure.IoT Build 0:ef4901974abc 315 {
Azure.IoT Build 0:ef4901974abc 316 if (mallocAndStrcpy_s(&mqttData->mqttOptions.username, mqttOptions->username) != 0)
Azure.IoT Build 0:ef4901974abc 317 {
Azure.IoT Build 0:ef4901974abc 318 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 319 }
Azure.IoT Build 0:ef4901974abc 320 }
Azure.IoT Build 0:ef4901974abc 321 if (result == 0 && mqttOptions->password != NULL)
Azure.IoT Build 0:ef4901974abc 322 {
Azure.IoT Build 0:ef4901974abc 323 if (mallocAndStrcpy_s(&mqttData->mqttOptions.password, mqttOptions->password) != 0)
Azure.IoT Build 0:ef4901974abc 324 {
Azure.IoT Build 0:ef4901974abc 325 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 326 }
Azure.IoT Build 0:ef4901974abc 327 }
Azure.IoT Build 0:ef4901974abc 328 if (result == 0)
Azure.IoT Build 0:ef4901974abc 329 {
Azure.IoT Build 0:ef4901974abc 330 mqttData->mqttOptions.keepAliveInterval = mqttOptions->keepAliveInterval;
Azure.IoT Build 0:ef4901974abc 331 mqttData->mqttOptions.messageRetain = mqttOptions->messageRetain;
Azure.IoT Build 0:ef4901974abc 332 mqttData->mqttOptions.useCleanSession = mqttOptions->useCleanSession;
Azure.IoT Build 0:ef4901974abc 333 mqttData->mqttOptions.qualityOfServiceValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 334 }
Azure.IoT Build 0:ef4901974abc 335 else
Azure.IoT Build 0:ef4901974abc 336 {
Azure.IoT Build 0:ef4901974abc 337 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 338 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 339 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 340 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 341 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 342 }
Azure.IoT Build 0:ef4901974abc 343 return result;
Azure.IoT Build 0:ef4901974abc 344 }
Azure.IoT Build 0:ef4901974abc 345
Azure.IoT Build 0:ef4901974abc 346 static void recvCompleteCallback(void* context, CONTROL_PACKET_TYPE packet, int flags, BUFFER_HANDLE headerData)
Azure.IoT Build 0:ef4901974abc 347 {
Azure.IoT Build 0:ef4901974abc 348 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
AzureIoTClient 3:9b4e7158ca0d 349 if ((mqttData != NULL && headerData != NULL) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 350 {
Azure.IoT Build 0:ef4901974abc 351 size_t len = BUFFER_length(headerData);
Azure.IoT Build 0:ef4901974abc 352 uint8_t* iterator = BUFFER_u_char(headerData);
Azure.IoT Build 0:ef4901974abc 353
Azure.IoT Build 0:ef4901974abc 354 logIncomingMsgTrace(mqttData, packet, flags, iterator, len);
Azure.IoT Build 0:ef4901974abc 355
AzureIoTClient 3:9b4e7158ca0d 356 if ((iterator != NULL && len > 0) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 357 {
Azure.IoT Build 0:ef4901974abc 358 switch (packet)
Azure.IoT Build 0:ef4901974abc 359 {
AzureIoTClient 3:9b4e7158ca0d 360 case CONNACK_TYPE:
Azure.IoT Build 0:ef4901974abc 361 {
AzureIoTClient 3:9b4e7158ca0d 362 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 363 {
AzureIoTClient 3:9b4e7158ca0d 364 /*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 365 CONNECT_ACK connack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 366 connack.isSessionPresent = (byteutil_readByte(&iterator) == 0x1) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 367 connack.returnCode = byteutil_readByte(&iterator);
Azure.IoT Build 0:ef4901974abc 368
AzureIoTClient 3:9b4e7158ca0d 369 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_CONNACK, (void*)&connack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 370
AzureIoTClient 3:9b4e7158ca0d 371 if (connack.returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 3:9b4e7158ca0d 372 {
AzureIoTClient 3:9b4e7158ca0d 373 mqttData->clientConnected = true;
AzureIoTClient 3:9b4e7158ca0d 374 }
Azure.IoT Build 0:ef4901974abc 375 }
AzureIoTClient 3:9b4e7158ca0d 376 break;
Azure.IoT Build 0:ef4901974abc 377 }
AzureIoTClient 3:9b4e7158ca0d 378 case PUBLISH_TYPE:
Azure.IoT Build 0:ef4901974abc 379 {
AzureIoTClient 3:9b4e7158ca0d 380 if (mqttData->fnMessageRecv != NULL)
AzureIoTClient 3:9b4e7158ca0d 381 {
AzureIoTClient 3:9b4e7158ca0d 382 bool isDuplicateMsg = (flags & DUPLICATE_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 383 bool isRetainMsg = (flags & RETAIN_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 384 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 385
AzureIoTClient 3:9b4e7158ca0d 386 uint8_t* initialPos = iterator;
AzureIoTClient 3:9b4e7158ca0d 387 char* topicName = byteutil_readUTF(&iterator, NULL);
AzureIoTClient 5:34779607059c 388 if (topicName == NULL)
AzureIoTClient 3:9b4e7158ca0d 389 {
AzureIoTClient 5:34779607059c 390 LOG(LOG_ERROR, LOG_LINE, "Publish MSG: failure reading topic name");
AzureIoTClient 5:34779607059c 391 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 392 {
AzureIoTClient 5:34779607059c 393 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 394 }
AzureIoTClient 3:9b4e7158ca0d 395 }
AzureIoTClient 3:9b4e7158ca0d 396 else
AzureIoTClient 3:9b4e7158ca0d 397 {
AzureIoTClient 5:34779607059c 398 uint16_t packetId = 0;
AzureIoTClient 5:34779607059c 399 if (qosValue != DELIVER_AT_MOST_ONCE)
AzureIoTClient 5:34779607059c 400 {
AzureIoTClient 5:34779607059c 401 packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 5:34779607059c 402 }
AzureIoTClient 5:34779607059c 403 size_t length = len - (iterator - initialPos);
AzureIoTClient 3:9b4e7158ca0d 404
AzureIoTClient 5:34779607059c 405 MQTT_MESSAGE_HANDLE msgHandle = mqttmessage_create(packetId, topicName, qosValue, iterator, length);
AzureIoTClient 5:34779607059c 406 if (msgHandle == NULL)
AzureIoTClient 3:9b4e7158ca0d 407 {
AzureIoTClient 5:34779607059c 408 LOG(LOG_ERROR, LOG_LINE, "failure in mqttmessage_create");
AzureIoTClient 5:34779607059c 409 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 410 {
AzureIoTClient 5:34779607059c 411 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 412 }
AzureIoTClient 3:9b4e7158ca0d 413 }
AzureIoTClient 5:34779607059c 414 else
AzureIoTClient 3:9b4e7158ca0d 415 {
AzureIoTClient 5:34779607059c 416 if (mqttmessage_setIsDuplicateMsg(msgHandle, isDuplicateMsg) != 0 ||
AzureIoTClient 5:34779607059c 417 mqttmessage_setIsRetained(msgHandle, isRetainMsg) != 0)
AzureIoTClient 5:34779607059c 418 {
AzureIoTClient 5:34779607059c 419 LOG(LOG_ERROR, LOG_LINE, "failure setting mqtt message property");
AzureIoTClient 5:34779607059c 420 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 421 {
AzureIoTClient 5:34779607059c 422 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 423 }
AzureIoTClient 5:34779607059c 424 }
AzureIoTClient 5:34779607059c 425 else
AzureIoTClient 5:34779607059c 426 {
AzureIoTClient 5:34779607059c 427 mqttData->fnMessageRecv(msgHandle, mqttData->ctx);
AzureIoTClient 5:34779607059c 428
AzureIoTClient 5:34779607059c 429 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 5:34779607059c 430 if (qosValue == DELIVER_EXACTLY_ONCE)
AzureIoTClient 5:34779607059c 431 {
AzureIoTClient 5:34779607059c 432 pubRel = mqtt_codec_publishReceived(packetId);
AzureIoTClient 5:34779607059c 433 if (pubRel == NULL)
AzureIoTClient 5:34779607059c 434 {
AzureIoTClient 5:34779607059c 435 LOG(LOG_ERROR, LOG_LINE, "Failed to allocate publish receive message.");
AzureIoTClient 5:34779607059c 436 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 437 {
AzureIoTClient 5:34779607059c 438 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 439 }
AzureIoTClient 5:34779607059c 440 }
AzureIoTClient 5:34779607059c 441 }
AzureIoTClient 5:34779607059c 442 else if (qosValue == DELIVER_AT_LEAST_ONCE)
AzureIoTClient 5:34779607059c 443 {
AzureIoTClient 5:34779607059c 444 pubRel = mqtt_codec_publishAck(packetId);
AzureIoTClient 5:34779607059c 445 if (pubRel == NULL)
AzureIoTClient 5:34779607059c 446 {
AzureIoTClient 5:34779607059c 447 LOG(LOG_ERROR, LOG_LINE, "Failed to allocate publish ack message.");
AzureIoTClient 5:34779607059c 448 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 449 {
AzureIoTClient 5:34779607059c 450 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 451 }
AzureIoTClient 5:34779607059c 452 }
AzureIoTClient 5:34779607059c 453 }
AzureIoTClient 5:34779607059c 454 if (pubRel != NULL)
AzureIoTClient 5:34779607059c 455 {
AzureIoTClient 5:34779607059c 456 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
AzureIoTClient 5:34779607059c 457 BUFFER_delete(pubRel);
AzureIoTClient 5:34779607059c 458 }
AzureIoTClient 5:34779607059c 459 }
AzureIoTClient 5:34779607059c 460 mqttmessage_destroy(msgHandle);
AzureIoTClient 3:9b4e7158ca0d 461 }
AzureIoTClient 3:9b4e7158ca0d 462 free(topicName);
AzureIoTClient 3:9b4e7158ca0d 463 }
Azure.IoT Build 0:ef4901974abc 464 }
AzureIoTClient 3:9b4e7158ca0d 465 break;
AzureIoTClient 3:9b4e7158ca0d 466 }
AzureIoTClient 3:9b4e7158ca0d 467 case PUBACK_TYPE:
AzureIoTClient 3:9b4e7158ca0d 468 case PUBREC_TYPE:
AzureIoTClient 3:9b4e7158ca0d 469 case PUBREL_TYPE:
AzureIoTClient 3:9b4e7158ca0d 470 case PUBCOMP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 471 {
AzureIoTClient 3:9b4e7158ca0d 472 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 473 {
AzureIoTClient 3:9b4e7158ca0d 474 /*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 475 MQTT_CLIENT_EVENT_RESULT action = (packet == PUBACK_TYPE) ? MQTT_CLIENT_ON_PUBLISH_ACK :
AzureIoTClient 3:9b4e7158ca0d 476 (packet == PUBREC_TYPE) ? MQTT_CLIENT_ON_PUBLISH_RECV :
AzureIoTClient 3:9b4e7158ca0d 477 (packet == PUBREL_TYPE) ? MQTT_CLIENT_ON_PUBLISH_REL : MQTT_CLIENT_ON_PUBLISH_COMP;
AzureIoTClient 3:9b4e7158ca0d 478
AzureIoTClient 3:9b4e7158ca0d 479 PUBLISH_ACK publish_ack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 480 publish_ack.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 481
Azure.IoT Build 0:ef4901974abc 482 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 3:9b4e7158ca0d 483 mqttData->fnOperationCallback(mqttData, action, (void*)&publish_ack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 484 if (packet == PUBREC_TYPE)
Azure.IoT Build 0:ef4901974abc 485 {
AzureIoTClient 3:9b4e7158ca0d 486 pubRel = mqtt_codec_publishRelease(publish_ack.packetId);
AzureIoTClient 5:34779607059c 487 if (pubRel == NULL)
AzureIoTClient 5:34779607059c 488 {
AzureIoTClient 5:34779607059c 489 LOG(LOG_ERROR, LOG_LINE, "Failed to allocate publish release message.");
AzureIoTClient 5:34779607059c 490 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 491 {
AzureIoTClient 5:34779607059c 492 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 493 }
AzureIoTClient 5:34779607059c 494 }
Azure.IoT Build 0:ef4901974abc 495 }
AzureIoTClient 3:9b4e7158ca0d 496 else if (packet == PUBREL_TYPE)
Azure.IoT Build 0:ef4901974abc 497 {
AzureIoTClient 3:9b4e7158ca0d 498 pubRel = mqtt_codec_publishComplete(publish_ack.packetId);
AzureIoTClient 5:34779607059c 499 if (pubRel == NULL)
AzureIoTClient 5:34779607059c 500 {
AzureIoTClient 5:34779607059c 501 LOG(LOG_ERROR, LOG_LINE, "Failed to allocate publish complete message.");
AzureIoTClient 5:34779607059c 502 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 503 {
AzureIoTClient 5:34779607059c 504 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 505 }
AzureIoTClient 5:34779607059c 506 }
Azure.IoT Build 0:ef4901974abc 507 }
Azure.IoT Build 0:ef4901974abc 508 if (pubRel != NULL)
Azure.IoT Build 0:ef4901974abc 509 {
Azure.IoT Build 0:ef4901974abc 510 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
Azure.IoT Build 0:ef4901974abc 511 BUFFER_delete(pubRel);
Azure.IoT Build 0:ef4901974abc 512 }
Azure.IoT Build 0:ef4901974abc 513 }
AzureIoTClient 3:9b4e7158ca0d 514 break;
Azure.IoT Build 0:ef4901974abc 515 }
AzureIoTClient 3:9b4e7158ca0d 516 case SUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 517 {
AzureIoTClient 3:9b4e7158ca0d 518 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 519 {
AzureIoTClient 3:9b4e7158ca0d 520 /*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 521 SUBSCRIBE_ACK suback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 522
AzureIoTClient 3:9b4e7158ca0d 523 size_t remainLen = len;
AzureIoTClient 3:9b4e7158ca0d 524 suback.packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 3:9b4e7158ca0d 525 remainLen -= 2;
Azure.IoT Build 0:ef4901974abc 526
AzureIoTClient 3:9b4e7158ca0d 527 // Allocate the remaining len
AzureIoTClient 3:9b4e7158ca0d 528 suback.qosReturn = (QOS_VALUE*)malloc(sizeof(QOS_VALUE)*remainLen);
AzureIoTClient 3:9b4e7158ca0d 529 if (suback.qosReturn != NULL)
Azure.IoT Build 0:ef4901974abc 530 {
AzureIoTClient 3:9b4e7158ca0d 531 while (remainLen > 0)
AzureIoTClient 3:9b4e7158ca0d 532 {
AzureIoTClient 3:9b4e7158ca0d 533 suback.qosReturn[suback.qosCount++] = byteutil_readByte(&iterator);
AzureIoTClient 3:9b4e7158ca0d 534 remainLen--;
AzureIoTClient 3:9b4e7158ca0d 535 }
AzureIoTClient 5:34779607059c 536 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_SUBSCRIBE_ACK, (void*)&suback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 537 free(suback.qosReturn);
Azure.IoT Build 0:ef4901974abc 538 }
AzureIoTClient 5:34779607059c 539 else
AzureIoTClient 5:34779607059c 540 {
AzureIoTClient 5:34779607059c 541 LOG(LOG_ERROR, LOG_LINE, "allocation of quality of service value failed.");
AzureIoTClient 5:34779607059c 542 if (mqttData->fnOperationCallback)
AzureIoTClient 5:34779607059c 543 {
AzureIoTClient 5:34779607059c 544 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
AzureIoTClient 5:34779607059c 545 }
AzureIoTClient 5:34779607059c 546 }
Azure.IoT Build 0:ef4901974abc 547 }
AzureIoTClient 3:9b4e7158ca0d 548 break;
Azure.IoT Build 0:ef4901974abc 549 }
AzureIoTClient 3:9b4e7158ca0d 550 case UNSUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 551 {
AzureIoTClient 3:9b4e7158ca0d 552 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 553 {
AzureIoTClient 3:9b4e7158ca0d 554 /*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 555 UNSUBSCRIBE_ACK unsuback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 556 iterator += VARIABLE_HEADER_OFFSET;
AzureIoTClient 3:9b4e7158ca0d 557 unsuback.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 558
AzureIoTClient 5:34779607059c 559 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_UNSUBSCRIBE_ACK, (void*)&unsuback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 560 }
AzureIoTClient 3:9b4e7158ca0d 561 break;
Azure.IoT Build 0:ef4901974abc 562 }
AzureIoTClient 3:9b4e7158ca0d 563 case PINGRESP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 564 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 565 // Ping responses do not get forwarded
AzureIoTClient 3:9b4e7158ca0d 566 break;
AzureIoTClient 3:9b4e7158ca0d 567 default:
AzureIoTClient 3:9b4e7158ca0d 568 break;
Azure.IoT Build 0:ef4901974abc 569 }
Azure.IoT Build 0:ef4901974abc 570 }
Azure.IoT Build 0:ef4901974abc 571 }
Azure.IoT Build 0:ef4901974abc 572 }
Azure.IoT Build 0:ef4901974abc 573
Azure.IoT Build 4:e7167dabd6e4 574 MQTT_CLIENT_HANDLE mqtt_client_init(ON_MQTT_MESSAGE_RECV_CALLBACK msgRecv, ON_MQTT_OPERATION_CALLBACK opCallback, void* callbackCtx)
Azure.IoT Build 0:ef4901974abc 575 {
Azure.IoT Build 0:ef4901974abc 576 MQTT_CLIENT* result;
Azure.IoT Build 0:ef4901974abc 577 /*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 578 if (msgRecv == NULL)
Azure.IoT Build 0:ef4901974abc 579 {
Azure.IoT Build 0:ef4901974abc 580 result = NULL;
Azure.IoT Build 0:ef4901974abc 581 }
Azure.IoT Build 0:ef4901974abc 582 else
Azure.IoT Build 0:ef4901974abc 583 {
Azure.IoT Build 0:ef4901974abc 584 result = malloc(sizeof(MQTT_CLIENT));
Azure.IoT Build 0:ef4901974abc 585 if (result == NULL)
Azure.IoT Build 0:ef4901974abc 586 {
Azure.IoT Build 0:ef4901974abc 587 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 588 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: Allocation Failure");
Azure.IoT Build 0:ef4901974abc 589 }
Azure.IoT Build 0:ef4901974abc 590 else
Azure.IoT Build 0:ef4901974abc 591 {
Azure.IoT Build 0:ef4901974abc 592 /*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 593 result->xioHandle = NULL;
Azure.IoT Build 0:ef4901974abc 594 result->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 595 result->packetSendTimeMs = 0;
Azure.IoT Build 0:ef4901974abc 596 result->fnOperationCallback = opCallback;
Azure.IoT Build 0:ef4901974abc 597 result->fnMessageRecv = msgRecv;
Azure.IoT Build 0:ef4901974abc 598 result->ctx = callbackCtx;
Azure.IoT Build 0:ef4901974abc 599 result->qosValue = DELIVER_AT_MOST_ONCE;
Azure.IoT Build 0:ef4901974abc 600 result->keepAliveInterval = 0;
Azure.IoT Build 0:ef4901974abc 601 result->packetTickCntr = tickcounter_create();
Azure.IoT Build 0:ef4901974abc 602 result->mqttOptions.clientId = NULL;
Azure.IoT Build 0:ef4901974abc 603 result->mqttOptions.willTopic = NULL;
Azure.IoT Build 0:ef4901974abc 604 result->mqttOptions.willMessage = NULL;
Azure.IoT Build 0:ef4901974abc 605 result->mqttOptions.username = NULL;
Azure.IoT Build 0:ef4901974abc 606 result->mqttOptions.password = NULL;
Azure.IoT Build 0:ef4901974abc 607 result->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 608 result->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 609 result->logTrace = false;
Azure.IoT Build 0:ef4901974abc 610 result->rawBytesTrace = false;
AzureIoTClient 3:9b4e7158ca0d 611 result->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 612 result->maxPingRespTime = DEFAULT_MAX_PING_RESPONSE_TIME;
Azure.IoT Build 0:ef4901974abc 613 if (result->packetTickCntr == NULL)
Azure.IoT Build 0:ef4901974abc 614 {
Azure.IoT Build 0:ef4901974abc 615 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 616 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: tickcounter_create failure");
Azure.IoT Build 0:ef4901974abc 617 free(result);
Azure.IoT Build 0:ef4901974abc 618 result = NULL;
Azure.IoT Build 0:ef4901974abc 619 }
Azure.IoT Build 0:ef4901974abc 620 else
Azure.IoT Build 0:ef4901974abc 621 {
Azure.IoT Build 0:ef4901974abc 622 result->codec_handle = mqtt_codec_create(recvCompleteCallback, result);
Azure.IoT Build 0:ef4901974abc 623 if (result->codec_handle == NULL)
Azure.IoT Build 0:ef4901974abc 624 {
Azure.IoT Build 0:ef4901974abc 625 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 4:e7167dabd6e4 626 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_init failure: mqtt_codec_create failure");
Azure.IoT Build 0:ef4901974abc 627 tickcounter_destroy(result->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 628 free(result);
Azure.IoT Build 0:ef4901974abc 629 result = NULL;
Azure.IoT Build 0:ef4901974abc 630 }
Azure.IoT Build 0:ef4901974abc 631 }
Azure.IoT Build 0:ef4901974abc 632 }
Azure.IoT Build 0:ef4901974abc 633 }
Azure.IoT Build 0:ef4901974abc 634 return result;
Azure.IoT Build 0:ef4901974abc 635 }
Azure.IoT Build 0:ef4901974abc 636
Azure.IoT Build 0:ef4901974abc 637 void mqtt_client_deinit(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 638 {
Azure.IoT Build 0:ef4901974abc 639 /*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 640 if (handle != NULL)
Azure.IoT Build 0:ef4901974abc 641 {
Azure.IoT Build 0:ef4901974abc 642 /*Codes_SRS_MQTT_CLIENT_07_005: [mqtt_client_deinit shall deallocate all memory allocated in this unit.]*/
Azure.IoT Build 0:ef4901974abc 643 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 644 tickcounter_destroy(mqttData->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 645 mqtt_codec_destroy(mqttData->codec_handle);
Azure.IoT Build 0:ef4901974abc 646 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 647 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 648 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 649 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 650 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 651 free(mqttData);
Azure.IoT Build 0:ef4901974abc 652 }
Azure.IoT Build 0:ef4901974abc 653 }
Azure.IoT Build 0:ef4901974abc 654
Azure.IoT Build 0:ef4901974abc 655 int mqtt_client_connect(MQTT_CLIENT_HANDLE handle, XIO_HANDLE xioHandle, MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 656 {
Azure.IoT Build 0:ef4901974abc 657 int result;
Azure.IoT Build 0:ef4901974abc 658 /*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 659 if (handle == NULL || mqttOptions == NULL)
Azure.IoT Build 0:ef4901974abc 660 {
AzureIoTClient 5:34779607059c 661 LOG(LOG_ERROR, LOG_LINE, "mqtt_client_connect: NULL argument (handle = %p, mqttOptions = %p)", handle, mqttOptions);
Azure.IoT Build 0:ef4901974abc 662 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 663 }
Azure.IoT Build 0:ef4901974abc 664 else
Azure.IoT Build 0:ef4901974abc 665 {
Azure.IoT Build 0:ef4901974abc 666 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 667 if (xioHandle == NULL)
Azure.IoT Build 0:ef4901974abc 668 {
Azure.IoT Build 0:ef4901974abc 669 /*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 670 LOG(LOG_ERROR, LOG_LINE, "Error: mqttcodec_connect failed");
Azure.IoT Build 0:ef4901974abc 671 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 672 }
Azure.IoT Build 0:ef4901974abc 673 else
Azure.IoT Build 0:ef4901974abc 674 {
Azure.IoT Build 0:ef4901974abc 675 mqttData->xioHandle = xioHandle;
Azure.IoT Build 0:ef4901974abc 676 mqttData->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 677 mqttData->qosValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 678 mqttData->keepAliveInterval = mqttOptions->keepAliveInterval;
AzureIoTClient 3:9b4e7158ca0d 679 mqttData->maxPingRespTime = (DEFAULT_MAX_PING_RESPONSE_TIME < mqttOptions->keepAliveInterval/2) ? DEFAULT_MAX_PING_RESPONSE_TIME : mqttOptions->keepAliveInterval/2;
Azure.IoT Build 0:ef4901974abc 680 if (cloneMqttOptions(mqttData, mqttOptions) != 0)
Azure.IoT Build 0:ef4901974abc 681 {
Azure.IoT Build 4:e7167dabd6e4 682 LOG(LOG_ERROR, LOG_LINE, "Error: Clone Mqtt Options failed");
Azure.IoT Build 0:ef4901974abc 683 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 684 }
Azure.IoT Build 0:ef4901974abc 685 /*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 686 else if (xio_open(xioHandle, onOpenComplete, mqttData, onBytesReceived, mqttData, onIoError, mqttData) != 0)
Azure.IoT Build 0:ef4901974abc 687 {
Azure.IoT Build 0:ef4901974abc 688 /*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 689 LOG(LOG_ERROR, LOG_LINE, "Error: io_open failed");
Azure.IoT Build 0:ef4901974abc 690 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 691 }
Azure.IoT Build 0:ef4901974abc 692 else
Azure.IoT Build 0:ef4901974abc 693 {
Azure.IoT Build 0:ef4901974abc 694 result = 0;
Azure.IoT Build 0:ef4901974abc 695 }
Azure.IoT Build 0:ef4901974abc 696 }
Azure.IoT Build 0:ef4901974abc 697 }
Azure.IoT Build 0:ef4901974abc 698 return result;
Azure.IoT Build 0:ef4901974abc 699 }
Azure.IoT Build 0:ef4901974abc 700
Azure.IoT Build 0:ef4901974abc 701 int mqtt_client_publish(MQTT_CLIENT_HANDLE handle, MQTT_MESSAGE_HANDLE msgHandle)
Azure.IoT Build 0:ef4901974abc 702 {
Azure.IoT Build 0:ef4901974abc 703 int result;
Azure.IoT Build 0:ef4901974abc 704 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 705 if (mqttData == NULL || msgHandle == NULL)
Azure.IoT Build 0:ef4901974abc 706 {
Azure.IoT Build 0:ef4901974abc 707 /*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 708 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 709 }
Azure.IoT Build 0:ef4901974abc 710 else
Azure.IoT Build 0:ef4901974abc 711 {
Azure.IoT Build 0:ef4901974abc 712 /*Codes_SRS_MQTT_CLIENT_07_021: [mqtt_client_publish shall get the message information from the MQTT_MESSAGE_HANDLE.]*/
Azure.IoT Build 0:ef4901974abc 713 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
Azure.IoT Build 0:ef4901974abc 714 if (payload == NULL)
Azure.IoT Build 0:ef4901974abc 715 {
Azure.IoT Build 0:ef4901974abc 716 /*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 717 LOG(LOG_ERROR, LOG_LINE, "Error: mqttmessage_getApplicationMsg failed");
Azure.IoT Build 0:ef4901974abc 718 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 719 }
Azure.IoT Build 0:ef4901974abc 720 else
Azure.IoT Build 0:ef4901974abc 721 {
Azure.IoT Build 0:ef4901974abc 722 BUFFER_HANDLE publishPacket = mqtt_codec_publish(mqttmessage_getQosType(msgHandle), mqttmessage_getIsDuplicateMsg(msgHandle),
Azure.IoT Build 0:ef4901974abc 723 mqttmessage_getIsRetained(msgHandle), mqttmessage_getPacketId(msgHandle), mqttmessage_getTopicName(msgHandle), payload->message, payload->length);
Azure.IoT Build 0:ef4901974abc 724 if (publishPacket == NULL)
Azure.IoT Build 0:ef4901974abc 725 {
Azure.IoT Build 0:ef4901974abc 726 /*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 727 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_publish failed");
Azure.IoT Build 0:ef4901974abc 728 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 729 }
Azure.IoT Build 0:ef4901974abc 730 else
Azure.IoT Build 0:ef4901974abc 731 {
Azure.IoT Build 0:ef4901974abc 732 mqttData->packetState = PUBLISH_TYPE;
Azure.IoT Build 0:ef4901974abc 733
Azure.IoT Build 0:ef4901974abc 734 /*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 735 if (sendPacketItem(mqttData, BUFFER_u_char(publishPacket), BUFFER_length(publishPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 736 {
Azure.IoT Build 0:ef4901974abc 737 /*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 738 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_publish send failed");
Azure.IoT Build 0:ef4901974abc 739 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 740 }
Azure.IoT Build 0:ef4901974abc 741 else
Azure.IoT Build 0:ef4901974abc 742 {
Azure.IoT Build 0:ef4901974abc 743 result = 0;
Azure.IoT Build 0:ef4901974abc 744 }
Azure.IoT Build 0:ef4901974abc 745 BUFFER_delete(publishPacket);
Azure.IoT Build 0:ef4901974abc 746 }
Azure.IoT Build 0:ef4901974abc 747 }
Azure.IoT Build 0:ef4901974abc 748 }
Azure.IoT Build 0:ef4901974abc 749 return result;
Azure.IoT Build 0:ef4901974abc 750 }
Azure.IoT Build 0:ef4901974abc 751
Azure.IoT Build 0:ef4901974abc 752 int mqtt_client_subscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, SUBSCRIBE_PAYLOAD* subscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 753 {
Azure.IoT Build 0:ef4901974abc 754 int result;
Azure.IoT Build 0:ef4901974abc 755 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 756 if (mqttData == NULL || subscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 757 {
Azure.IoT Build 0:ef4901974abc 758 /*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 759 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 760 }
Azure.IoT Build 0:ef4901974abc 761 else
Azure.IoT Build 0:ef4901974abc 762 {
Azure.IoT Build 0:ef4901974abc 763 BUFFER_HANDLE subPacket = mqtt_codec_subscribe(packetId, subscribeList, count);
Azure.IoT Build 0:ef4901974abc 764 if (subPacket == NULL)
Azure.IoT Build 0:ef4901974abc 765 {
Azure.IoT Build 0:ef4901974abc 766 /*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 767 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_subscribe failed");
Azure.IoT Build 0:ef4901974abc 768 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 769 }
Azure.IoT Build 0:ef4901974abc 770 else
Azure.IoT Build 0:ef4901974abc 771 {
Azure.IoT Build 0:ef4901974abc 772 mqttData->packetState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 773
Azure.IoT Build 0:ef4901974abc 774 /*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 775 if (sendPacketItem(mqttData, BUFFER_u_char(subPacket), BUFFER_length(subPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 776 {
Azure.IoT Build 0:ef4901974abc 777 /*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 778 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_subscribe send failed");
Azure.IoT Build 0:ef4901974abc 779 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 780 }
Azure.IoT Build 0:ef4901974abc 781 else
Azure.IoT Build 0:ef4901974abc 782 {
Azure.IoT Build 0:ef4901974abc 783 result = 0;
Azure.IoT Build 0:ef4901974abc 784 }
Azure.IoT Build 0:ef4901974abc 785 BUFFER_delete(subPacket);
Azure.IoT Build 0:ef4901974abc 786 }
Azure.IoT Build 0:ef4901974abc 787 }
Azure.IoT Build 0:ef4901974abc 788 return result;
Azure.IoT Build 0:ef4901974abc 789 }
Azure.IoT Build 0:ef4901974abc 790
Azure.IoT Build 0:ef4901974abc 791 int mqtt_client_unsubscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, const char** unsubscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 792 {
Azure.IoT Build 0:ef4901974abc 793 int result;
Azure.IoT Build 0:ef4901974abc 794 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 795 if (mqttData == NULL || unsubscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 796 {
Azure.IoT Build 0:ef4901974abc 797 /*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 798 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 799 }
Azure.IoT Build 0:ef4901974abc 800 else
Azure.IoT Build 0:ef4901974abc 801 {
Azure.IoT Build 0:ef4901974abc 802 BUFFER_HANDLE unsubPacket = mqtt_codec_unsubscribe(packetId, unsubscribeList, count);
Azure.IoT Build 0:ef4901974abc 803 if (unsubPacket == NULL)
Azure.IoT Build 0:ef4901974abc 804 {
Azure.IoT Build 0:ef4901974abc 805 /*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 806 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_codec_unsubscribe failed");
Azure.IoT Build 0:ef4901974abc 807 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 808 }
Azure.IoT Build 0:ef4901974abc 809 else
Azure.IoT Build 0:ef4901974abc 810 {
Azure.IoT Build 0:ef4901974abc 811 mqttData->packetState = UNSUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 812
Azure.IoT Build 0:ef4901974abc 813 /*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 814 if (sendPacketItem(mqttData, BUFFER_u_char(unsubPacket), BUFFER_length(unsubPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 815 {
Azure.IoT Build 0:ef4901974abc 816 /*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 817 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_unsubscribe send failed");
Azure.IoT Build 0:ef4901974abc 818 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 819 }
Azure.IoT Build 0:ef4901974abc 820 else
Azure.IoT Build 0:ef4901974abc 821 {
Azure.IoT Build 0:ef4901974abc 822 result = 0;
Azure.IoT Build 0:ef4901974abc 823 }
Azure.IoT Build 0:ef4901974abc 824 BUFFER_delete(unsubPacket);
Azure.IoT Build 0:ef4901974abc 825 }
Azure.IoT Build 0:ef4901974abc 826 }
Azure.IoT Build 0:ef4901974abc 827 return result;
Azure.IoT Build 0:ef4901974abc 828 }
Azure.IoT Build 0:ef4901974abc 829
Azure.IoT Build 0:ef4901974abc 830 int mqtt_client_disconnect(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 831 {
Azure.IoT Build 0:ef4901974abc 832 int result;
Azure.IoT Build 0:ef4901974abc 833 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 834 if (mqttData == NULL)
Azure.IoT Build 0:ef4901974abc 835 {
Azure.IoT Build 0:ef4901974abc 836 /*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 837 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 838 }
Azure.IoT Build 0:ef4901974abc 839 else
Azure.IoT Build 0:ef4901974abc 840 {
Azure.IoT Build 0:ef4901974abc 841 BUFFER_HANDLE disconnectPacket = mqtt_codec_disconnect();
Azure.IoT Build 0:ef4901974abc 842 if (disconnectPacket == NULL)
Azure.IoT Build 0:ef4901974abc 843 {
Azure.IoT Build 0:ef4901974abc 844 /*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 845 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_disconnect failed");
Azure.IoT Build 4:e7167dabd6e4 846 mqttData->packetState = PACKET_TYPE_ERROR;
Azure.IoT Build 0:ef4901974abc 847 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 848 }
Azure.IoT Build 0:ef4901974abc 849 else
Azure.IoT Build 0:ef4901974abc 850 {
Azure.IoT Build 0:ef4901974abc 851 mqttData->packetState = DISCONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 852
Azure.IoT Build 0:ef4901974abc 853 /*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 854 if (sendPacketItem(mqttData, BUFFER_u_char(disconnectPacket), BUFFER_length(disconnectPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 855 {
Azure.IoT Build 0:ef4901974abc 856 /*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 857 LOG(LOG_ERROR, LOG_LINE, "Error: mqtt_client_disconnect send failed");
Azure.IoT Build 0:ef4901974abc 858 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 859 }
Azure.IoT Build 0:ef4901974abc 860 else
Azure.IoT Build 0:ef4901974abc 861 {
Azure.IoT Build 0:ef4901974abc 862 result = 0;
Azure.IoT Build 0:ef4901974abc 863 }
Azure.IoT Build 0:ef4901974abc 864 BUFFER_delete(disconnectPacket);
Azure.IoT Build 0:ef4901974abc 865 }
Azure.IoT Build 0:ef4901974abc 866 }
Azure.IoT Build 0:ef4901974abc 867 return result;
Azure.IoT Build 0:ef4901974abc 868 }
Azure.IoT Build 0:ef4901974abc 869
Azure.IoT Build 0:ef4901974abc 870 void mqtt_client_dowork(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 871 {
Azure.IoT Build 0:ef4901974abc 872 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 873 /*Codes_SRS_MQTT_CLIENT_07_023: [If the parameter handle is NULL then mqtt_client_dowork shall do nothing.]*/
Azure.IoT Build 0:ef4901974abc 874 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 875 {
Azure.IoT Build 0:ef4901974abc 876 /*Codes_SRS_MQTT_CLIENT_07_024: [mqtt_client_dowork shall call the xio_dowork function to complete operations.]*/
Azure.IoT Build 0:ef4901974abc 877 xio_dowork(mqttData->xioHandle);
Azure.IoT Build 0:ef4901974abc 878
Azure.IoT Build 0:ef4901974abc 879 /*Codes_SRS_MQTT_CLIENT_07_025: [mqtt_client_dowork shall retrieve the the last packet send value and ...]*/
Azure.IoT Build 0:ef4901974abc 880 if (mqttData->socketConnected && mqttData->clientConnected && mqttData->keepAliveInterval > 0)
Azure.IoT Build 0:ef4901974abc 881 {
Azure.IoT Build 0:ef4901974abc 882 uint64_t current_ms;
Azure.IoT Build 0:ef4901974abc 883 if (tickcounter_get_current_ms(mqttData->packetTickCntr, &current_ms) != 0)
Azure.IoT Build 0:ef4901974abc 884 {
Azure.IoT Build 4:e7167dabd6e4 885 LOG(LOG_ERROR, LOG_LINE, "Error: tickcounter_get_current_ms failed");
Azure.IoT Build 0:ef4901974abc 886 }
Azure.IoT Build 0:ef4901974abc 887 else
Azure.IoT Build 0:ef4901974abc 888 {
AzureIoTClient 3:9b4e7158ca0d 889 /* 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 890 if (mqttData->timeSincePing > 0 && ((current_ms - mqttData->timeSincePing)/1000) > mqttData->maxPingRespTime)
AzureIoTClient 3:9b4e7158ca0d 891 {
AzureIoTClient 3:9b4e7158ca0d 892 // We haven't gotten a ping response in the alloted time
AzureIoTClient 3:9b4e7158ca0d 893 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 894 {
AzureIoTClient 3:9b4e7158ca0d 895 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_NO_PING_RESPONSE, NULL, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 896 }
AzureIoTClient 3:9b4e7158ca0d 897 mqttData->socketConnected = false;
AzureIoTClient 3:9b4e7158ca0d 898 mqttData->clientConnected = false;
AzureIoTClient 3:9b4e7158ca0d 899 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 900 mqttData->packetSendTimeMs = 0;
AzureIoTClient 3:9b4e7158ca0d 901 mqttData->packetState = UNKNOWN_TYPE;
AzureIoTClient 3:9b4e7158ca0d 902 }
AzureIoTClient 3:9b4e7158ca0d 903 else if ((((current_ms - mqttData->packetSendTimeMs) / 1000) + KEEP_ALIVE_BUFFER_SEC) > mqttData->keepAliveInterval)
Azure.IoT Build 0:ef4901974abc 904 {
Azure.IoT Build 0:ef4901974abc 905 /*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 906 BUFFER_HANDLE pingPacket = mqtt_codec_ping();
Azure.IoT Build 0:ef4901974abc 907 if (pingPacket != NULL)
Azure.IoT Build 0:ef4901974abc 908 {
Azure.IoT Build 0:ef4901974abc 909 (void)sendPacketItem(mqttData, BUFFER_u_char(pingPacket), BUFFER_length(pingPacket));
Azure.IoT Build 0:ef4901974abc 910 BUFFER_delete(pingPacket);
AzureIoTClient 3:9b4e7158ca0d 911 (void)tickcounter_get_current_ms(mqttData->packetTickCntr, &mqttData->timeSincePing);
Azure.IoT Build 0:ef4901974abc 912 }
Azure.IoT Build 0:ef4901974abc 913 }
Azure.IoT Build 0:ef4901974abc 914 }
Azure.IoT Build 0:ef4901974abc 915 }
Azure.IoT Build 0:ef4901974abc 916 }
Azure.IoT Build 0:ef4901974abc 917 }
Azure.IoT Build 0:ef4901974abc 918
Azure.IoT Build 0:ef4901974abc 919 void mqtt_client_set_trace(MQTT_CLIENT_HANDLE handle, bool traceOn, bool rawBytesOn)
Azure.IoT Build 0:ef4901974abc 920 {
Azure.IoT Build 0:ef4901974abc 921 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 922 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 923 {
Azure.IoT Build 0:ef4901974abc 924 mqttData->logTrace = traceOn;
Azure.IoT Build 0:ef4901974abc 925 mqttData->rawBytesTrace = rawBytesOn;
Azure.IoT Build 0:ef4901974abc 926 }
Azure.IoT Build 0:ef4901974abc 927 }