Azure IoT / iothub_mqtt_transport

Microsoft Azure IoTHub client MQTT transport

Dependents:   STM32F746_iothub_client_sample_mqtt FXOS8700CQ_To_Azure_IoT f767zi_mqtt FXOS8700CQ_To_Azure_IoT ... more

iothubtransportmqtt.c@2:9db4da50abaa, 2016-04-24 (annotated)

Committer:
AzureIoTClient
Date:
Sun Apr 24 16:40:02 2016 -0700
Revision:
2:9db4da50abaa
Parent:
1:f2e563755d91
Child:
3:40f482ed0be8
1.0.5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:5e72a75c31b8 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:5e72a75c31b8 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:5e72a75c31b8 3
Azure.IoT Build 0:5e72a75c31b8 4 #include <stdlib.h>
Azure.IoT Build 0:5e72a75c31b8 5 #ifdef _CRTDBG_MAP_ALLOC
Azure.IoT Build 0:5e72a75c31b8 6 #include <crtdbg.h>
Azure.IoT Build 0:5e72a75c31b8 7 #endif
Azure.IoT Build 1:f2e563755d91 8 #include "azure_c_shared_utility/gballoc.h"
Azure.IoT Build 0:5e72a75c31b8 9
Azure.IoT Build 1:f2e563755d91 10 #include "azure_c_shared_utility/iot_logging.h"
Azure.IoT Build 1:f2e563755d91 11 #include "azure_c_shared_utility/strings.h"
Azure.IoT Build 1:f2e563755d91 12 #include "azure_c_shared_utility/doublylinkedlist.h"
Azure.IoT Build 1:f2e563755d91 13 #include "azure_c_shared_utility/crt_abstractions.h"
Azure.IoT Build 0:5e72a75c31b8 14
Azure.IoT Build 0:5e72a75c31b8 15 #include "iothub_client_ll.h"
Azure.IoT Build 0:5e72a75c31b8 16 #include "iothub_client_private.h"
Azure.IoT Build 0:5e72a75c31b8 17 #include "iothubtransportmqtt.h"
Azure.IoT Build 1:f2e563755d91 18 #include "azure_umqtt_c/mqtt_client.h"
Azure.IoT Build 1:f2e563755d91 19 #include "azure_c_shared_utility/sastoken.h"
Azure.IoT Build 1:f2e563755d91 20 #include "azure_c_shared_utility/tickcounter.h"
Azure.IoT Build 0:5e72a75c31b8 21
Azure.IoT Build 1:f2e563755d91 22 #include "azure_c_shared_utility/tlsio.h"
Azure.IoT Build 1:f2e563755d91 23 #include "azure_c_shared_utility/platform.h"
Azure.IoT Build 0:5e72a75c31b8 24
AzureIoTClient 2:9db4da50abaa 25 #include "azure_c_shared_utility/string_tokenizer.h"
Azure.IoT Build 0:5e72a75c31b8 26 #include "iothub_client_version.h"
Azure.IoT Build 0:5e72a75c31b8 27
Azure.IoT Build 0:5e72a75c31b8 28 #include <stdarg.h>
Azure.IoT Build 0:5e72a75c31b8 29 #include <stdio.h>
Azure.IoT Build 0:5e72a75c31b8 30
Azure.IoT Build 0:5e72a75c31b8 31 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 2:9db4da50abaa 32 #define SAS_REFRESH_MULTIPLIER .8
Azure.IoT Build 0:5e72a75c31b8 33 #define EPOCH_TIME_T_VALUE 0
Azure.IoT Build 1:f2e563755d91 34 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
Azure.IoT Build 0:5e72a75c31b8 35 #define DEFAULT_PORT_NUMBER 8883
Azure.IoT Build 0:5e72a75c31b8 36 #define DEFAULT_TEMP_STRING_LEN 256
Azure.IoT Build 0:5e72a75c31b8 37 #define BUILD_CONFIG_USERNAME 24
Azure.IoT Build 0:5e72a75c31b8 38 #define EVENT_TOPIC_DEFAULT_LEN 27
Azure.IoT Build 0:5e72a75c31b8 39 #define SAS_TOKEN_DEFAULT_LEN 10
Azure.IoT Build 0:5e72a75c31b8 40 #define RESEND_TIMEOUT_VALUE_MIN 1*60
Azure.IoT Build 0:5e72a75c31b8 41 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 2:9db4da50abaa 42 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 2:9db4da50abaa 43 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 2:9db4da50abaa 44
AzureIoTClient 2:9db4da50abaa 45 static const char* DEVICE_MSG_TOPIC = "devices/%s/messages/devicebound/#";
AzureIoTClient 2:9db4da50abaa 46 static const char* DEVICE_DEVICE_TOPIC = "devices/%s/messages/events/";
AzureIoTClient 2:9db4da50abaa 47 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 2:9db4da50abaa 48
AzureIoTClient 2:9db4da50abaa 49 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 2:9db4da50abaa 50 {
AzureIoTClient 2:9db4da50abaa 51 const char* propName;
AzureIoTClient 2:9db4da50abaa 52 size_t propLength;
AzureIoTClient 2:9db4da50abaa 53 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 2:9db4da50abaa 54
AzureIoTClient 2:9db4da50abaa 55 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 2:9db4da50abaa 56 { "%24.exp", 7 },
AzureIoTClient 2:9db4da50abaa 57 { "%24.mid", 7 },
AzureIoTClient 2:9db4da50abaa 58 { "%24.uid", 7 },
AzureIoTClient 2:9db4da50abaa 59 { "%24.to", 6 },
AzureIoTClient 2:9db4da50abaa 60 { "%24.cid", 7 },
AzureIoTClient 2:9db4da50abaa 61 { "devices/", 8 },
AzureIoTClient 2:9db4da50abaa 62 { "iothub-operation", 16 },
AzureIoTClient 2:9db4da50abaa 63 { "iothub-ack", 10 }
AzureIoTClient 2:9db4da50abaa 64 };
Azure.IoT Build 0:5e72a75c31b8 65
Azure.IoT Build 0:5e72a75c31b8 66 TICK_COUNTER_HANDLE g_msgTickCounter;
Azure.IoT Build 0:5e72a75c31b8 67
Azure.IoT Build 0:5e72a75c31b8 68 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
Azure.IoT Build 0:5e72a75c31b8 69 {
Azure.IoT Build 0:5e72a75c31b8 70 STRING_HANDLE device_id;
Azure.IoT Build 0:5e72a75c31b8 71 STRING_HANDLE device_key;
Azure.IoT Build 0:5e72a75c31b8 72 STRING_HANDLE sasTokenSr;
Azure.IoT Build 0:5e72a75c31b8 73 STRING_HANDLE mqttEventTopic;
Azure.IoT Build 0:5e72a75c31b8 74 STRING_HANDLE mqttMessageTopic;
Azure.IoT Build 0:5e72a75c31b8 75 STRING_HANDLE hostAddress;
Azure.IoT Build 0:5e72a75c31b8 76 // The current mqtt iothub implementation requires that the hub name and the domain suffix be passed as the first of a series of segments
Azure.IoT Build 0:5e72a75c31b8 77 // passed through the username portion of the connection frame.
Azure.IoT Build 0:5e72a75c31b8 78 // The second segment will contain the device id. The two segments are delemited by a "/".
Azure.IoT Build 0:5e72a75c31b8 79 // The first segment can be a maximum 256 characters.
Azure.IoT Build 0:5e72a75c31b8 80 // The second segment can be a maximum 128 characters.
Azure.IoT Build 0:5e72a75c31b8 81 // With the / delimeter you have 384 chars (Plus a terminator of 0).
Azure.IoT Build 0:5e72a75c31b8 82 STRING_HANDLE configPassedThroughUsername;
Azure.IoT Build 0:5e72a75c31b8 83 int portNum;
Azure.IoT Build 0:5e72a75c31b8 84 MQTT_CLIENT_HANDLE mqttClient;
Azure.IoT Build 0:5e72a75c31b8 85 uint16_t packetId;
Azure.IoT Build 0:5e72a75c31b8 86 bool isRegistered;
Azure.IoT Build 0:5e72a75c31b8 87 bool connected;
Azure.IoT Build 0:5e72a75c31b8 88 bool subscribed;
Azure.IoT Build 0:5e72a75c31b8 89 bool receiveMessages;
Azure.IoT Build 0:5e72a75c31b8 90 bool destroyCalled;
Azure.IoT Build 0:5e72a75c31b8 91 DLIST_ENTRY waitingForAck;
Azure.IoT Build 0:5e72a75c31b8 92 PDLIST_ENTRY waitingToSend;
Azure.IoT Build 0:5e72a75c31b8 93 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
Azure.IoT Build 0:5e72a75c31b8 94 CONTROL_PACKET_TYPE currPacketState;
Azure.IoT Build 0:5e72a75c31b8 95 XIO_HANDLE xioTransport;
Azure.IoT Build 0:5e72a75c31b8 96 int keepAliveValue;
AzureIoTClient 2:9db4da50abaa 97 uint64_t mqtt_connect_time;
AzureIoTClient 2:9db4da50abaa 98 size_t connectFailCount;
AzureIoTClient 2:9db4da50abaa 99 uint64_t connectTick;
Azure.IoT Build 0:5e72a75c31b8 100 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
Azure.IoT Build 0:5e72a75c31b8 101
Azure.IoT Build 0:5e72a75c31b8 102 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
Azure.IoT Build 0:5e72a75c31b8 103 {
Azure.IoT Build 0:5e72a75c31b8 104 uint64_t msgPublishTime;
Azure.IoT Build 0:5e72a75c31b8 105 size_t retryCount;
Azure.IoT Build 0:5e72a75c31b8 106 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
Azure.IoT Build 0:5e72a75c31b8 107 void* context;
Azure.IoT Build 0:5e72a75c31b8 108 uint16_t msgPacketId;
Azure.IoT Build 0:5e72a75c31b8 109 DLIST_ENTRY entry;
Azure.IoT Build 0:5e72a75c31b8 110 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
Azure.IoT Build 0:5e72a75c31b8 111
Azure.IoT Build 0:5e72a75c31b8 112 static void defaultPrintLogFunction(unsigned int options, char* format, ...)
Azure.IoT Build 0:5e72a75c31b8 113 {
Azure.IoT Build 0:5e72a75c31b8 114 va_list args;
Azure.IoT Build 0:5e72a75c31b8 115 va_start(args, format);
Azure.IoT Build 0:5e72a75c31b8 116 (void)vprintf(format, args);
Azure.IoT Build 0:5e72a75c31b8 117 va_end(args);
Azure.IoT Build 0:5e72a75c31b8 118
Azure.IoT Build 0:5e72a75c31b8 119 if (options & LOG_LINE)
Azure.IoT Build 0:5e72a75c31b8 120 {
Azure.IoT Build 0:5e72a75c31b8 121 (void)printf("\r\n");
Azure.IoT Build 0:5e72a75c31b8 122 }
Azure.IoT Build 0:5e72a75c31b8 123 }
Azure.IoT Build 0:5e72a75c31b8 124
Azure.IoT Build 0:5e72a75c31b8 125 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transportState, IOTHUB_BATCHSTATE_RESULT batchResult)
Azure.IoT Build 0:5e72a75c31b8 126 {
Azure.IoT Build 0:5e72a75c31b8 127 DLIST_ENTRY messageCompleted;
Azure.IoT Build 0:5e72a75c31b8 128 DList_InitializeListHead(&messageCompleted);
Azure.IoT Build 0:5e72a75c31b8 129 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
Azure.IoT Build 0:5e72a75c31b8 130 IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, batchResult);
Azure.IoT Build 0:5e72a75c31b8 131 }
Azure.IoT Build 0:5e72a75c31b8 132
AzureIoTClient 2:9db4da50abaa 133 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 2:9db4da50abaa 134 {
AzureIoTClient 2:9db4da50abaa 135 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 2:9db4da50abaa 136 const char* const* propertyKeys;
AzureIoTClient 2:9db4da50abaa 137 const char* const* propertyValues;
AzureIoTClient 2:9db4da50abaa 138 size_t propertyCount;
AzureIoTClient 2:9db4da50abaa 139
AzureIoTClient 2:9db4da50abaa 140 // Construct Properties
AzureIoTClient 2:9db4da50abaa 141 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 2:9db4da50abaa 142 if (properties_map != NULL)
AzureIoTClient 2:9db4da50abaa 143 {
AzureIoTClient 2:9db4da50abaa 144 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 2:9db4da50abaa 145 {
AzureIoTClient 2:9db4da50abaa 146 LogError("Failed to get the internals of the property map.");
AzureIoTClient 2:9db4da50abaa 147 STRING_delete(result);
AzureIoTClient 2:9db4da50abaa 148 result = NULL;
AzureIoTClient 2:9db4da50abaa 149 }
AzureIoTClient 2:9db4da50abaa 150 else
AzureIoTClient 2:9db4da50abaa 151 {
AzureIoTClient 2:9db4da50abaa 152 if (propertyCount != 0)
AzureIoTClient 2:9db4da50abaa 153 {
AzureIoTClient 2:9db4da50abaa 154 for (size_t index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 2:9db4da50abaa 155 {
AzureIoTClient 2:9db4da50abaa 156 size_t len = strlen(propertyKeys[index]) + strlen(propertyValues[index]) + 2;
AzureIoTClient 2:9db4da50abaa 157 char* propValues = malloc(len+1);
AzureIoTClient 2:9db4da50abaa 158 if (propValues == NULL)
AzureIoTClient 2:9db4da50abaa 159 {
AzureIoTClient 2:9db4da50abaa 160 STRING_delete(result);
AzureIoTClient 2:9db4da50abaa 161 result = NULL;
AzureIoTClient 2:9db4da50abaa 162 }
AzureIoTClient 2:9db4da50abaa 163 else
AzureIoTClient 2:9db4da50abaa 164 {
AzureIoTClient 2:9db4da50abaa 165 sprintf(propValues, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : "&");
AzureIoTClient 2:9db4da50abaa 166 if (STRING_concat(result, propValues) != 0)
AzureIoTClient 2:9db4da50abaa 167 {
AzureIoTClient 2:9db4da50abaa 168 STRING_delete(result);
AzureIoTClient 2:9db4da50abaa 169 result = NULL;
AzureIoTClient 2:9db4da50abaa 170 }
AzureIoTClient 2:9db4da50abaa 171 free(propValues);
AzureIoTClient 2:9db4da50abaa 172 }
AzureIoTClient 2:9db4da50abaa 173 }
AzureIoTClient 2:9db4da50abaa 174 }
AzureIoTClient 2:9db4da50abaa 175 }
AzureIoTClient 2:9db4da50abaa 176 }
AzureIoTClient 2:9db4da50abaa 177 return result;
AzureIoTClient 2:9db4da50abaa 178 }
AzureIoTClient 2:9db4da50abaa 179
Azure.IoT Build 0:5e72a75c31b8 180 static int publishMqttMessage(PMQTTTRANSPORT_HANDLE_DATA transportState, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
Azure.IoT Build 0:5e72a75c31b8 181 {
Azure.IoT Build 0:5e72a75c31b8 182 int result;
AzureIoTClient 2:9db4da50abaa 183 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transportState->mqttEventTopic));
AzureIoTClient 2:9db4da50abaa 184 if (msgTopic == NULL)
Azure.IoT Build 0:5e72a75c31b8 185 {
Azure.IoT Build 0:5e72a75c31b8 186 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 187 }
Azure.IoT Build 0:5e72a75c31b8 188 else
Azure.IoT Build 0:5e72a75c31b8 189 {
AzureIoTClient 2:9db4da50abaa 190 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(transportState->packetId++, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 2:9db4da50abaa 191 if (mqttMsg == NULL)
Azure.IoT Build 0:5e72a75c31b8 192 {
Azure.IoT Build 0:5e72a75c31b8 193 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 194 }
Azure.IoT Build 0:5e72a75c31b8 195 else
Azure.IoT Build 0:5e72a75c31b8 196 {
AzureIoTClient 2:9db4da50abaa 197 if (mqtt_client_publish(transportState->mqttClient, mqttMsg) != 0)
AzureIoTClient 2:9db4da50abaa 198 {
AzureIoTClient 2:9db4da50abaa 199 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 200 }
AzureIoTClient 2:9db4da50abaa 201 else
AzureIoTClient 2:9db4da50abaa 202 {
AzureIoTClient 2:9db4da50abaa 203 mqttMsgEntry->retryCount++;
AzureIoTClient 2:9db4da50abaa 204 (void)tickcounter_get_current_ms(g_msgTickCounter, &mqttMsgEntry->msgPublishTime);
AzureIoTClient 2:9db4da50abaa 205 result = 0;
AzureIoTClient 2:9db4da50abaa 206 }
AzureIoTClient 2:9db4da50abaa 207 mqttmessage_destroy(mqttMsg);
AzureIoTClient 2:9db4da50abaa 208 }
AzureIoTClient 2:9db4da50abaa 209 STRING_delete(msgTopic);
AzureIoTClient 2:9db4da50abaa 210 }
AzureIoTClient 2:9db4da50abaa 211 return result;
AzureIoTClient 2:9db4da50abaa 212 }
AzureIoTClient 2:9db4da50abaa 213
AzureIoTClient 2:9db4da50abaa 214 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 2:9db4da50abaa 215 {
AzureIoTClient 2:9db4da50abaa 216 bool result = false;
AzureIoTClient 2:9db4da50abaa 217 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 2:9db4da50abaa 218 for (size_t index = 0; index < propCount; index++)
AzureIoTClient 2:9db4da50abaa 219 {
AzureIoTClient 2:9db4da50abaa 220 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 2:9db4da50abaa 221 {
AzureIoTClient 2:9db4da50abaa 222 result = true;
AzureIoTClient 2:9db4da50abaa 223 break;
AzureIoTClient 2:9db4da50abaa 224 }
AzureIoTClient 2:9db4da50abaa 225 }
AzureIoTClient 2:9db4da50abaa 226 return result;
AzureIoTClient 2:9db4da50abaa 227 }
AzureIoTClient 2:9db4da50abaa 228
AzureIoTClient 2:9db4da50abaa 229 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, MQTT_MESSAGE_HANDLE msgHandle)
AzureIoTClient 2:9db4da50abaa 230 {
AzureIoTClient 2:9db4da50abaa 231 int result;
AzureIoTClient 2:9db4da50abaa 232 STRING_HANDLE mqttTopic = STRING_construct(mqttmessage_getTopicName(msgHandle));
AzureIoTClient 2:9db4da50abaa 233
AzureIoTClient 2:9db4da50abaa 234 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 2:9db4da50abaa 235 if (token != NULL)
AzureIoTClient 2:9db4da50abaa 236 {
AzureIoTClient 2:9db4da50abaa 237 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 2:9db4da50abaa 238 if (propertyMap == NULL)
AzureIoTClient 2:9db4da50abaa 239 {
AzureIoTClient 2:9db4da50abaa 240 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 2:9db4da50abaa 241 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 242 }
AzureIoTClient 2:9db4da50abaa 243 else
AzureIoTClient 2:9db4da50abaa 244 {
AzureIoTClient 2:9db4da50abaa 245 STRING_HANDLE output = STRING_new();
AzureIoTClient 2:9db4da50abaa 246 if (output == NULL)
AzureIoTClient 2:9db4da50abaa 247 {
AzureIoTClient 2:9db4da50abaa 248 LogError("Failure to allocate STRING_new.");
AzureIoTClient 2:9db4da50abaa 249 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 250 }
AzureIoTClient 2:9db4da50abaa 251 else
AzureIoTClient 2:9db4da50abaa 252 {
AzureIoTClient 2:9db4da50abaa 253 result = 0;
AzureIoTClient 2:9db4da50abaa 254 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 2:9db4da50abaa 255 {
AzureIoTClient 2:9db4da50abaa 256 const char* tokenData = STRING_c_str(output);
AzureIoTClient 2:9db4da50abaa 257 size_t tokenLen = strlen(tokenData);
AzureIoTClient 2:9db4da50abaa 258 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 2:9db4da50abaa 259 {
AzureIoTClient 2:9db4da50abaa 260 break;
AzureIoTClient 2:9db4da50abaa 261 }
AzureIoTClient 2:9db4da50abaa 262 else
AzureIoTClient 2:9db4da50abaa 263 {
AzureIoTClient 2:9db4da50abaa 264 if (!isSystemProperty(tokenData) )
AzureIoTClient 2:9db4da50abaa 265 {
AzureIoTClient 2:9db4da50abaa 266 const char* iterator = tokenData;
AzureIoTClient 2:9db4da50abaa 267 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 2:9db4da50abaa 268 {
AzureIoTClient 2:9db4da50abaa 269 if (*iterator == '=')
AzureIoTClient 2:9db4da50abaa 270 {
AzureIoTClient 2:9db4da50abaa 271 size_t nameLen = iterator - tokenData;
AzureIoTClient 2:9db4da50abaa 272 char* propName = malloc(nameLen + 1);
AzureIoTClient 2:9db4da50abaa 273
AzureIoTClient 2:9db4da50abaa 274 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 2:9db4da50abaa 275 char* propValue = malloc(valLen + 1);
AzureIoTClient 2:9db4da50abaa 276
AzureIoTClient 2:9db4da50abaa 277 if (propName == NULL || propValue == NULL)
AzureIoTClient 2:9db4da50abaa 278 {
AzureIoTClient 2:9db4da50abaa 279 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 280 }
AzureIoTClient 2:9db4da50abaa 281 else
AzureIoTClient 2:9db4da50abaa 282 {
AzureIoTClient 2:9db4da50abaa 283 strncpy(propName, tokenData, nameLen);
AzureIoTClient 2:9db4da50abaa 284 propName[nameLen] = '\0';
AzureIoTClient 2:9db4da50abaa 285
AzureIoTClient 2:9db4da50abaa 286 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 2:9db4da50abaa 287 propValue[valLen] = '\0';
AzureIoTClient 2:9db4da50abaa 288
AzureIoTClient 2:9db4da50abaa 289 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 2:9db4da50abaa 290 {
AzureIoTClient 2:9db4da50abaa 291 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 2:9db4da50abaa 292 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 293 }
AzureIoTClient 2:9db4da50abaa 294 }
AzureIoTClient 2:9db4da50abaa 295 free(propName);
AzureIoTClient 2:9db4da50abaa 296 free(propValue);
AzureIoTClient 2:9db4da50abaa 297
AzureIoTClient 2:9db4da50abaa 298 break;
AzureIoTClient 2:9db4da50abaa 299 }
AzureIoTClient 2:9db4da50abaa 300 iterator++;
AzureIoTClient 2:9db4da50abaa 301 }
AzureIoTClient 2:9db4da50abaa 302 }
AzureIoTClient 2:9db4da50abaa 303 }
AzureIoTClient 2:9db4da50abaa 304 }
AzureIoTClient 2:9db4da50abaa 305 STRING_delete(output);
AzureIoTClient 2:9db4da50abaa 306 }
AzureIoTClient 2:9db4da50abaa 307 }
AzureIoTClient 2:9db4da50abaa 308 STRING_TOKENIZER_destroy(token);
Azure.IoT Build 0:5e72a75c31b8 309 }
AzureIoTClient 2:9db4da50abaa 310 else
AzureIoTClient 2:9db4da50abaa 311 {
AzureIoTClient 2:9db4da50abaa 312 LogError("Unable to create Tokenizer object.");
AzureIoTClient 2:9db4da50abaa 313 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 314 }
AzureIoTClient 2:9db4da50abaa 315 STRING_delete(mqttTopic);
AzureIoTClient 2:9db4da50abaa 316
Azure.IoT Build 0:5e72a75c31b8 317 return result;
Azure.IoT Build 0:5e72a75c31b8 318 }
Azure.IoT Build 0:5e72a75c31b8 319
Azure.IoT Build 0:5e72a75c31b8 320 static void MqttRecvCallback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
Azure.IoT Build 0:5e72a75c31b8 321 {
Azure.IoT Build 0:5e72a75c31b8 322 if (msgHandle != NULL && callbackCtx != NULL)
Azure.IoT Build 0:5e72a75c31b8 323 {
Azure.IoT Build 0:5e72a75c31b8 324 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
Azure.IoT Build 0:5e72a75c31b8 325 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
Azure.IoT Build 0:5e72a75c31b8 326 if (IoTHubMessage == NULL)
Azure.IoT Build 0:5e72a75c31b8 327 {
AzureIoTClient 2:9db4da50abaa 328 LogError("IotHub Message creation has failed.");
Azure.IoT Build 0:5e72a75c31b8 329 }
Azure.IoT Build 0:5e72a75c31b8 330 else
Azure.IoT Build 0:5e72a75c31b8 331 {
AzureIoTClient 2:9db4da50abaa 332 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 2:9db4da50abaa 333 (void)extractMqttProperties(IoTHubMessage, msgHandle);
Azure.IoT Build 0:5e72a75c31b8 334 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
Azure.IoT Build 0:5e72a75c31b8 335 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
Azure.IoT Build 0:5e72a75c31b8 336 {
AzureIoTClient 2:9db4da50abaa 337 LogError("Event not accepted by our client.");
Azure.IoT Build 0:5e72a75c31b8 338 }
Azure.IoT Build 0:5e72a75c31b8 339 IoTHubMessage_Destroy(IoTHubMessage);
Azure.IoT Build 0:5e72a75c31b8 340 }
Azure.IoT Build 0:5e72a75c31b8 341 }
Azure.IoT Build 0:5e72a75c31b8 342 }
Azure.IoT Build 0:5e72a75c31b8 343
Azure.IoT Build 0:5e72a75c31b8 344 static void MqttOpCompleteCallback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
Azure.IoT Build 0:5e72a75c31b8 345 {
Azure.IoT Build 0:5e72a75c31b8 346 (void)handle;
Azure.IoT Build 0:5e72a75c31b8 347 if (callbackCtx != NULL)
Azure.IoT Build 0:5e72a75c31b8 348 {
Azure.IoT Build 0:5e72a75c31b8 349 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
Azure.IoT Build 0:5e72a75c31b8 350
Azure.IoT Build 0:5e72a75c31b8 351 switch (actionResult)
Azure.IoT Build 0:5e72a75c31b8 352 {
Azure.IoT Build 0:5e72a75c31b8 353 case MQTT_CLIENT_ON_PUBLISH_ACK:
Azure.IoT Build 0:5e72a75c31b8 354 case MQTT_CLIENT_ON_PUBLISH_COMP:
Azure.IoT Build 0:5e72a75c31b8 355 {
Azure.IoT Build 0:5e72a75c31b8 356 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
Azure.IoT Build 0:5e72a75c31b8 357 if (puback != NULL)
Azure.IoT Build 0:5e72a75c31b8 358 {
Azure.IoT Build 0:5e72a75c31b8 359 PDLIST_ENTRY currentListEntry = transportData->waitingForAck.Flink;
Azure.IoT Build 0:5e72a75c31b8 360 while (currentListEntry != &transportData->waitingForAck)
Azure.IoT Build 0:5e72a75c31b8 361 {
Azure.IoT Build 0:5e72a75c31b8 362 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
Azure.IoT Build 0:5e72a75c31b8 363 DLIST_ENTRY saveListEntry;
Azure.IoT Build 0:5e72a75c31b8 364 saveListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 365
Azure.IoT Build 0:5e72a75c31b8 366 if (puback->packetId == mqttMsgEntry->msgPacketId)
Azure.IoT Build 0:5e72a75c31b8 367 {
Azure.IoT Build 0:5e72a75c31b8 368 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
Azure.IoT Build 0:5e72a75c31b8 369 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportData, IOTHUB_BATCHSTATE_SUCCESS);
Azure.IoT Build 0:5e72a75c31b8 370 free(mqttMsgEntry);
Azure.IoT Build 0:5e72a75c31b8 371 }
Azure.IoT Build 0:5e72a75c31b8 372 currentListEntry = saveListEntry.Flink;
Azure.IoT Build 0:5e72a75c31b8 373 }
Azure.IoT Build 0:5e72a75c31b8 374 }
Azure.IoT Build 0:5e72a75c31b8 375 break;
Azure.IoT Build 0:5e72a75c31b8 376 }
Azure.IoT Build 0:5e72a75c31b8 377 case MQTT_CLIENT_ON_CONNACK:
Azure.IoT Build 0:5e72a75c31b8 378 {
Azure.IoT Build 0:5e72a75c31b8 379 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
Azure.IoT Build 0:5e72a75c31b8 380 if (connack != NULL)
Azure.IoT Build 0:5e72a75c31b8 381 {
Azure.IoT Build 0:5e72a75c31b8 382 if (connack->returnCode == CONNECTION_ACCEPTED)
Azure.IoT Build 0:5e72a75c31b8 383 {
Azure.IoT Build 0:5e72a75c31b8 384 // The connect packet has been acked
Azure.IoT Build 0:5e72a75c31b8 385 transportData->currPacketState = CONNACK_TYPE;
Azure.IoT Build 0:5e72a75c31b8 386 }
Azure.IoT Build 0:5e72a75c31b8 387 else
Azure.IoT Build 0:5e72a75c31b8 388 {
AzureIoTClient 2:9db4da50abaa 389 LogError("Connection not accepted, return code: %d.", connack->returnCode);
Azure.IoT Build 0:5e72a75c31b8 390 (void)mqtt_client_disconnect(transportData->mqttClient);
Azure.IoT Build 0:5e72a75c31b8 391 transportData->connected = false;
Azure.IoT Build 0:5e72a75c31b8 392 transportData->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT Build 0:5e72a75c31b8 393 }
Azure.IoT Build 0:5e72a75c31b8 394 }
Azure.IoT Build 0:5e72a75c31b8 395 else
Azure.IoT Build 0:5e72a75c31b8 396 {
AzureIoTClient 2:9db4da50abaa 397 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
Azure.IoT Build 0:5e72a75c31b8 398 }
Azure.IoT Build 0:5e72a75c31b8 399 break;
Azure.IoT Build 0:5e72a75c31b8 400 }
Azure.IoT Build 0:5e72a75c31b8 401 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
Azure.IoT Build 0:5e72a75c31b8 402 {
Azure.IoT Build 0:5e72a75c31b8 403 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
Azure.IoT Build 0:5e72a75c31b8 404 if (suback != NULL)
Azure.IoT Build 0:5e72a75c31b8 405 {
Azure.IoT Build 0:5e72a75c31b8 406 if (suback->qosCount == 1)
Azure.IoT Build 0:5e72a75c31b8 407 {
Azure.IoT Build 0:5e72a75c31b8 408 // The connect packet has been acked
Azure.IoT Build 0:5e72a75c31b8 409 transportData->currPacketState = SUBACK_TYPE;
Azure.IoT Build 0:5e72a75c31b8 410 }
Azure.IoT Build 0:5e72a75c31b8 411 else
Azure.IoT Build 0:5e72a75c31b8 412 {
AzureIoTClient 2:9db4da50abaa 413 LogError("QOS count was not expected: %d.", (int)suback->qosCount);
Azure.IoT Build 0:5e72a75c31b8 414 }
Azure.IoT Build 0:5e72a75c31b8 415 }
Azure.IoT Build 0:5e72a75c31b8 416 break;
Azure.IoT Build 0:5e72a75c31b8 417 }
Azure.IoT Build 0:5e72a75c31b8 418 case MQTT_CLIENT_ON_PUBLISH_RECV:
Azure.IoT Build 0:5e72a75c31b8 419 case MQTT_CLIENT_ON_PUBLISH_REL:
Azure.IoT Build 0:5e72a75c31b8 420 {
Azure.IoT Build 0:5e72a75c31b8 421 // Currently not used
Azure.IoT Build 0:5e72a75c31b8 422 break;
Azure.IoT Build 0:5e72a75c31b8 423 }
Azure.IoT Build 0:5e72a75c31b8 424 case MQTT_CLIENT_ON_DISCONNECT:
Azure.IoT Build 0:5e72a75c31b8 425 {
Azure.IoT Build 0:5e72a75c31b8 426 // Close the client so we can reconnect again
Azure.IoT Build 0:5e72a75c31b8 427 transportData->connected = false;
Azure.IoT Build 0:5e72a75c31b8 428 transportData->currPacketState = DISCONNECT_TYPE;
Azure.IoT Build 0:5e72a75c31b8 429 break;
Azure.IoT Build 0:5e72a75c31b8 430 }
Azure.IoT Build 0:5e72a75c31b8 431 case MQTT_CLIENT_ON_ERROR:
Azure.IoT Build 0:5e72a75c31b8 432 {
Azure.IoT Build 0:5e72a75c31b8 433 xio_close(transportData->xioTransport, NULL, NULL);
Azure.IoT Build 0:5e72a75c31b8 434 transportData->connected = false;
Azure.IoT Build 0:5e72a75c31b8 435 transportData->subscribed = false;
Azure.IoT Build 0:5e72a75c31b8 436 transportData->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT Build 0:5e72a75c31b8 437 }
Azure.IoT Build 0:5e72a75c31b8 438 }
Azure.IoT Build 0:5e72a75c31b8 439 }
Azure.IoT Build 0:5e72a75c31b8 440 }
Azure.IoT Build 0:5e72a75c31b8 441
Azure.IoT Build 0:5e72a75c31b8 442 const XIO_HANDLE getIoTransportProvider(const char* fqdn, int port)
Azure.IoT Build 0:5e72a75c31b8 443 {
Azure.IoT Build 0:5e72a75c31b8 444 TLSIO_CONFIG tls_io_config = { fqdn, port };
Azure.IoT Build 0:5e72a75c31b8 445 const IO_INTERFACE_DESCRIPTION* io_interface_description = platform_get_default_tlsio();
Azure.IoT Build 0:5e72a75c31b8 446 return (void*)xio_create(io_interface_description, &tls_io_config, NULL/*defaultPrintLogFunction*/);
Azure.IoT Build 0:5e72a75c31b8 447 }
Azure.IoT Build 0:5e72a75c31b8 448
Azure.IoT Build 0:5e72a75c31b8 449 static int SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 450 {
Azure.IoT Build 0:5e72a75c31b8 451 int result;
Azure.IoT Build 0:5e72a75c31b8 452
Azure.IoT Build 0:5e72a75c31b8 453 if (transportState->receiveMessages && !transportState->subscribed)
Azure.IoT Build 0:5e72a75c31b8 454 {
Azure.IoT Build 0:5e72a75c31b8 455 SUBSCRIBE_PAYLOAD subscribe[] = {
Azure.IoT Build 0:5e72a75c31b8 456 { STRING_c_str(transportState->mqttMessageTopic), DELIVER_AT_LEAST_ONCE }
Azure.IoT Build 0:5e72a75c31b8 457 };
Azure.IoT Build 0:5e72a75c31b8 458 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
Azure.IoT Build 0:5e72a75c31b8 459 if (mqtt_client_subscribe(transportState->mqttClient, transportState->packetId++, subscribe, 1) != 0)
Azure.IoT Build 0:5e72a75c31b8 460 {
Azure.IoT Build 0:5e72a75c31b8 461 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
Azure.IoT Build 0:5e72a75c31b8 462 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 463 }
Azure.IoT Build 0:5e72a75c31b8 464 else
Azure.IoT Build 0:5e72a75c31b8 465 {
Azure.IoT Build 0:5e72a75c31b8 466 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransportMqtt_Subscribe shall return 0.] */
Azure.IoT Build 0:5e72a75c31b8 467 transportState->subscribed = true;
Azure.IoT Build 0:5e72a75c31b8 468 transportState->currPacketState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:5e72a75c31b8 469 result = 0;
Azure.IoT Build 0:5e72a75c31b8 470 }
Azure.IoT Build 0:5e72a75c31b8 471 }
Azure.IoT Build 0:5e72a75c31b8 472 else
Azure.IoT Build 0:5e72a75c31b8 473 {
Azure.IoT Build 0:5e72a75c31b8 474 if (transportState->receiveMessages)
Azure.IoT Build 0:5e72a75c31b8 475 {
Azure.IoT Build 0:5e72a75c31b8 476 transportState->currPacketState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:5e72a75c31b8 477 }
Azure.IoT Build 0:5e72a75c31b8 478 else
Azure.IoT Build 0:5e72a75c31b8 479 {
Azure.IoT Build 0:5e72a75c31b8 480 transportState->currPacketState = PUBLISH_TYPE;
Azure.IoT Build 0:5e72a75c31b8 481 }
Azure.IoT Build 0:5e72a75c31b8 482 }
Azure.IoT Build 0:5e72a75c31b8 483 return result;
Azure.IoT Build 0:5e72a75c31b8 484 }
Azure.IoT Build 0:5e72a75c31b8 485
Azure.IoT Build 0:5e72a75c31b8 486 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
Azure.IoT Build 0:5e72a75c31b8 487 {
Azure.IoT Build 0:5e72a75c31b8 488 const unsigned char* result;
Azure.IoT Build 0:5e72a75c31b8 489
Azure.IoT Build 0:5e72a75c31b8 490 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
Azure.IoT Build 0:5e72a75c31b8 491 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
Azure.IoT Build 0:5e72a75c31b8 492 {
Azure.IoT Build 0:5e72a75c31b8 493 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
Azure.IoT Build 0:5e72a75c31b8 494 {
AzureIoTClient 2:9db4da50abaa 495 LogError("Failure result from IoTHubMessage_GetByteArray");
Azure.IoT Build 0:5e72a75c31b8 496 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 497 *length = 0;
Azure.IoT Build 0:5e72a75c31b8 498 }
Azure.IoT Build 0:5e72a75c31b8 499 }
Azure.IoT Build 0:5e72a75c31b8 500 else if (contentType == IOTHUBMESSAGE_STRING)
Azure.IoT Build 0:5e72a75c31b8 501 {
Azure.IoT Build 0:5e72a75c31b8 502 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
Azure.IoT Build 0:5e72a75c31b8 503 if (result == NULL)
Azure.IoT Build 0:5e72a75c31b8 504 {
AzureIoTClient 2:9db4da50abaa 505 LogError("Failure result from IoTHubMessage_GetString");
Azure.IoT Build 0:5e72a75c31b8 506 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 507 *length = 0;
Azure.IoT Build 0:5e72a75c31b8 508 }
Azure.IoT Build 0:5e72a75c31b8 509 else
Azure.IoT Build 0:5e72a75c31b8 510 {
Azure.IoT Build 0:5e72a75c31b8 511 *length = strlen((const char*)result);
Azure.IoT Build 0:5e72a75c31b8 512 }
Azure.IoT Build 0:5e72a75c31b8 513 }
Azure.IoT Build 0:5e72a75c31b8 514 else
Azure.IoT Build 0:5e72a75c31b8 515 {
Azure.IoT Build 0:5e72a75c31b8 516 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 517 *length = 0;
Azure.IoT Build 0:5e72a75c31b8 518 }
Azure.IoT Build 0:5e72a75c31b8 519 return result;
Azure.IoT Build 0:5e72a75c31b8 520 }
Azure.IoT Build 0:5e72a75c31b8 521
Azure.IoT Build 0:5e72a75c31b8 522 static STRING_HANDLE ConstructSasToken(const char* iothubName, const char* iotHubSuffix, const char* deviceId)
Azure.IoT Build 0:5e72a75c31b8 523 {
Azure.IoT Build 0:5e72a75c31b8 524 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 525 size_t len = strlen(iothubName);
Azure.IoT Build 0:5e72a75c31b8 526 len += strlen(iotHubSuffix);
Azure.IoT Build 0:5e72a75c31b8 527 len += strlen(deviceId);
Azure.IoT Build 0:5e72a75c31b8 528
Azure.IoT Build 0:5e72a75c31b8 529 char* sasToken = malloc(len + SAS_TOKEN_DEFAULT_LEN + 1);
Azure.IoT Build 0:5e72a75c31b8 530 if (sasToken == NULL)
Azure.IoT Build 0:5e72a75c31b8 531 {
Azure.IoT Build 0:5e72a75c31b8 532 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 533 }
Azure.IoT Build 0:5e72a75c31b8 534 else
Azure.IoT Build 0:5e72a75c31b8 535 {
Azure.IoT Build 0:5e72a75c31b8 536 (void)sprintf(sasToken, "%s.%s/devices/%s", iothubName, iotHubSuffix, deviceId);
Azure.IoT Build 0:5e72a75c31b8 537 result = STRING_construct(sasToken);
Azure.IoT Build 0:5e72a75c31b8 538 free(sasToken);
Azure.IoT Build 0:5e72a75c31b8 539 }
Azure.IoT Build 0:5e72a75c31b8 540 return result;
Azure.IoT Build 0:5e72a75c31b8 541 }
Azure.IoT Build 0:5e72a75c31b8 542
Azure.IoT Build 0:5e72a75c31b8 543 static STRING_HANDLE ConstructEventTopic(const char* deviceId)
Azure.IoT Build 0:5e72a75c31b8 544 {
Azure.IoT Build 0:5e72a75c31b8 545 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 546 size_t len = strlen(deviceId);
Azure.IoT Build 0:5e72a75c31b8 547
Azure.IoT Build 0:5e72a75c31b8 548 char* eventTopic = malloc(len + EVENT_TOPIC_DEFAULT_LEN + 1);
Azure.IoT Build 0:5e72a75c31b8 549 if (eventTopic == NULL)
Azure.IoT Build 0:5e72a75c31b8 550 {
Azure.IoT Build 0:5e72a75c31b8 551 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 552 }
Azure.IoT Build 0:5e72a75c31b8 553 else
Azure.IoT Build 0:5e72a75c31b8 554 {
AzureIoTClient 2:9db4da50abaa 555 (void)sprintf(eventTopic, DEVICE_DEVICE_TOPIC, deviceId);
Azure.IoT Build 0:5e72a75c31b8 556 result = STRING_construct(eventTopic);
Azure.IoT Build 0:5e72a75c31b8 557 free(eventTopic);
Azure.IoT Build 0:5e72a75c31b8 558 }
Azure.IoT Build 0:5e72a75c31b8 559 return result;
Azure.IoT Build 0:5e72a75c31b8 560 }
Azure.IoT Build 0:5e72a75c31b8 561
Azure.IoT Build 0:5e72a75c31b8 562 static STRING_HANDLE ConstructMessageTopic(const char* deviceId)
Azure.IoT Build 0:5e72a75c31b8 563 {
Azure.IoT Build 0:5e72a75c31b8 564 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 565 size_t len = strlen(deviceId);
Azure.IoT Build 0:5e72a75c31b8 566
Azure.IoT Build 0:5e72a75c31b8 567 char* messageTopic = malloc(len + 32 + 1);
Azure.IoT Build 0:5e72a75c31b8 568 if (messageTopic == NULL)
Azure.IoT Build 0:5e72a75c31b8 569 {
Azure.IoT Build 0:5e72a75c31b8 570 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 571 }
Azure.IoT Build 0:5e72a75c31b8 572 else
Azure.IoT Build 0:5e72a75c31b8 573 {
AzureIoTClient 2:9db4da50abaa 574 (void)sprintf(messageTopic, DEVICE_MSG_TOPIC, deviceId);
Azure.IoT Build 0:5e72a75c31b8 575 result = STRING_construct(messageTopic);
Azure.IoT Build 0:5e72a75c31b8 576 free(messageTopic);
Azure.IoT Build 0:5e72a75c31b8 577 }
Azure.IoT Build 0:5e72a75c31b8 578 return result;
Azure.IoT Build 0:5e72a75c31b8 579 }
Azure.IoT Build 0:5e72a75c31b8 580
Azure.IoT Build 0:5e72a75c31b8 581 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 582 {
Azure.IoT Build 0:5e72a75c31b8 583 int result;
Azure.IoT Build 0:5e72a75c31b8 584
Azure.IoT Build 0:5e72a75c31b8 585 if (transportState->xioTransport == NULL)
Azure.IoT Build 0:5e72a75c31b8 586 {
Azure.IoT Build 0:5e72a75c31b8 587 // construct address
Azure.IoT Build 0:5e72a75c31b8 588 const char* hostAddress = STRING_c_str(transportState->hostAddress);
Azure.IoT Build 0:5e72a75c31b8 589 const char* hostName = strstr(hostAddress, "//");
Azure.IoT Build 0:5e72a75c31b8 590 if (hostName == NULL)
Azure.IoT Build 0:5e72a75c31b8 591 {
Azure.IoT Build 0:5e72a75c31b8 592 hostName = hostAddress;
Azure.IoT Build 0:5e72a75c31b8 593 }
Azure.IoT Build 0:5e72a75c31b8 594 else
Azure.IoT Build 0:5e72a75c31b8 595 {
Azure.IoT Build 0:5e72a75c31b8 596 // Increment beyond the double backslash
Azure.IoT Build 0:5e72a75c31b8 597 hostName += 2;
Azure.IoT Build 0:5e72a75c31b8 598 }
Azure.IoT Build 0:5e72a75c31b8 599 transportState->xioTransport = getIoTransportProvider(hostName, transportState->portNum);
Azure.IoT Build 0:5e72a75c31b8 600 if (transportState->xioTransport == NULL)
Azure.IoT Build 0:5e72a75c31b8 601 {
AzureIoTClient 2:9db4da50abaa 602 LogError("Unable to create the lower level TLS layer.");
Azure.IoT Build 0:5e72a75c31b8 603 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 604 }
Azure.IoT Build 0:5e72a75c31b8 605 else
Azure.IoT Build 0:5e72a75c31b8 606 {
Azure.IoT Build 0:5e72a75c31b8 607 result = 0;
Azure.IoT Build 0:5e72a75c31b8 608 }
Azure.IoT Build 0:5e72a75c31b8 609 }
Azure.IoT Build 0:5e72a75c31b8 610 else
Azure.IoT Build 0:5e72a75c31b8 611 {
Azure.IoT Build 0:5e72a75c31b8 612 result = 0;
Azure.IoT Build 0:5e72a75c31b8 613 }
Azure.IoT Build 0:5e72a75c31b8 614 return result;
Azure.IoT Build 0:5e72a75c31b8 615 }
AzureIoTClient 2:9db4da50abaa 616
Azure.IoT Build 0:5e72a75c31b8 617 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 618 {
AzureIoTClient 2:9db4da50abaa 619 int result;
Azure.IoT Build 0:5e72a75c31b8 620
Azure.IoT Build 0:5e72a75c31b8 621 // Construct SAS token
Azure.IoT Build 0:5e72a75c31b8 622 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
Azure.IoT Build 0:5e72a75c31b8 623 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
Azure.IoT Build 0:5e72a75c31b8 624
Azure.IoT Build 0:5e72a75c31b8 625 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
Azure.IoT Build 0:5e72a75c31b8 626 STRING_HANDLE emptyKeyName = STRING_new();
Azure.IoT Build 0:5e72a75c31b8 627 STRING_HANDLE sasToken = SASToken_Create(transportState->device_key, transportState->sasTokenSr, emptyKeyName, expiryTime);
Azure.IoT Build 0:5e72a75c31b8 628 if (sasToken == NULL)
Azure.IoT Build 0:5e72a75c31b8 629 {
Azure.IoT Build 0:5e72a75c31b8 630 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 631 }
Azure.IoT Build 0:5e72a75c31b8 632 else
Azure.IoT Build 0:5e72a75c31b8 633 {
Azure.IoT Build 0:5e72a75c31b8 634 MQTT_CLIENT_OPTIONS options = { 0 };
Azure.IoT Build 0:5e72a75c31b8 635 options.clientId = (char*)STRING_c_str(transportState->device_id);
Azure.IoT Build 0:5e72a75c31b8 636 options.willMessage = NULL;
Azure.IoT Build 0:5e72a75c31b8 637 options.username = (char*)STRING_c_str(transportState->configPassedThroughUsername);
Azure.IoT Build 0:5e72a75c31b8 638 options.password = (char*)STRING_c_str(sasToken);
Azure.IoT Build 0:5e72a75c31b8 639 options.keepAliveInterval = transportState->keepAliveValue;
Azure.IoT Build 0:5e72a75c31b8 640 options.useCleanSession = false;
Azure.IoT Build 0:5e72a75c31b8 641 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
Azure.IoT Build 0:5e72a75c31b8 642
AzureIoTClient 2:9db4da50abaa 643 if (GetTransportProviderIfNecessary(transportState) == 0)
Azure.IoT Build 0:5e72a75c31b8 644 {
Azure.IoT Build 0:5e72a75c31b8 645 if (mqtt_client_connect(transportState->mqttClient, transportState->xioTransport, &options) != 0)
Azure.IoT Build 0:5e72a75c31b8 646 {
AzureIoTClient 2:9db4da50abaa 647 LogError("failure connecting to address %s:%d.", STRING_c_str(transportState->hostAddress), transportState->portNum);
AzureIoTClient 2:9db4da50abaa 648 xio_destroy(transportState->xioTransport);
AzureIoTClient 2:9db4da50abaa 649 transportState->xioTransport = NULL;
Azure.IoT Build 0:5e72a75c31b8 650 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 651 }
Azure.IoT Build 0:5e72a75c31b8 652 else
Azure.IoT Build 0:5e72a75c31b8 653 {
AzureIoTClient 2:9db4da50abaa 654 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->mqtt_connect_time);
Azure.IoT Build 0:5e72a75c31b8 655 result = 0;
Azure.IoT Build 0:5e72a75c31b8 656 }
Azure.IoT Build 0:5e72a75c31b8 657 }
AzureIoTClient 2:9db4da50abaa 658 else
AzureIoTClient 2:9db4da50abaa 659 {
AzureIoTClient 2:9db4da50abaa 660 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 661 }
Azure.IoT Build 0:5e72a75c31b8 662 }
Azure.IoT Build 0:5e72a75c31b8 663 STRING_delete(emptyKeyName);
Azure.IoT Build 0:5e72a75c31b8 664 STRING_delete(sasToken);
Azure.IoT Build 0:5e72a75c31b8 665 return result;
Azure.IoT Build 0:5e72a75c31b8 666 }
Azure.IoT Build 0:5e72a75c31b8 667
Azure.IoT Build 0:5e72a75c31b8 668 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 669 {
Azure.IoT Build 0:5e72a75c31b8 670 int result = 0;
AzureIoTClient 2:9db4da50abaa 671
AzureIoTClient 2:9db4da50abaa 672 // Make sure we're not destroying the object
AzureIoTClient 2:9db4da50abaa 673 if (!transportState->destroyCalled)
Azure.IoT Build 0:5e72a75c31b8 674 {
AzureIoTClient 2:9db4da50abaa 675 // If we are not connected then check to see if we need
AzureIoTClient 2:9db4da50abaa 676 // to back off the connecting to the server
AzureIoTClient 2:9db4da50abaa 677 if (!transportState->connected)
AzureIoTClient 2:9db4da50abaa 678 {
AzureIoTClient 2:9db4da50abaa 679 // Default makeConnection as true if something goes wrong we'll make the connection
AzureIoTClient 2:9db4da50abaa 680 bool makeConnection = true;
AzureIoTClient 2:9db4da50abaa 681 // If we've failed for FAILED_CONN_BACKOFF_VALUE straight times them let's slow down connection
AzureIoTClient 2:9db4da50abaa 682 // to the service
AzureIoTClient 2:9db4da50abaa 683 if (transportState->connectFailCount > FAILED_CONN_BACKOFF_VALUE)
AzureIoTClient 2:9db4da50abaa 684 {
AzureIoTClient 2:9db4da50abaa 685 uint64_t currentTick;
AzureIoTClient 2:9db4da50abaa 686 if (tickcounter_get_current_ms(g_msgTickCounter, &currentTick) == 0)
AzureIoTClient 2:9db4da50abaa 687 {
AzureIoTClient 2:9db4da50abaa 688 if ( ((currentTick - transportState->connectTick)/1000) <= DEFAULT_CONNECTION_INTERVAL)
AzureIoTClient 2:9db4da50abaa 689 {
AzureIoTClient 2:9db4da50abaa 690 result = __LINE__;
AzureIoTClient 2:9db4da50abaa 691 makeConnection = false;
AzureIoTClient 2:9db4da50abaa 692 }
AzureIoTClient 2:9db4da50abaa 693 }
AzureIoTClient 2:9db4da50abaa 694 }
AzureIoTClient 2:9db4da50abaa 695
AzureIoTClient 2:9db4da50abaa 696 if (makeConnection)
AzureIoTClient 2:9db4da50abaa 697 {
AzureIoTClient 2:9db4da50abaa 698 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->connectTick);
Azure.IoT Build 0:5e72a75c31b8 699 if (SendMqttConnectMsg(transportState) != 0)
Azure.IoT Build 0:5e72a75c31b8 700 {
AzureIoTClient 2:9db4da50abaa 701 transportState->connectFailCount++;
Azure.IoT Build 0:5e72a75c31b8 702 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 703 }
Azure.IoT Build 0:5e72a75c31b8 704 else
Azure.IoT Build 0:5e72a75c31b8 705 {
AzureIoTClient 2:9db4da50abaa 706 transportState->connectFailCount = 0;
Azure.IoT Build 0:5e72a75c31b8 707 transportState->connected = true;
Azure.IoT Build 0:5e72a75c31b8 708 result = 0;
Azure.IoT Build 0:5e72a75c31b8 709 }
Azure.IoT Build 0:5e72a75c31b8 710 }
AzureIoTClient 2:9db4da50abaa 711 }
AzureIoTClient 2:9db4da50abaa 712
AzureIoTClient 2:9db4da50abaa 713 if (transportState->connected)
AzureIoTClient 2:9db4da50abaa 714 {
AzureIoTClient 2:9db4da50abaa 715 // We are connected and not being closed, so does SAS need to reconnect?
AzureIoTClient 2:9db4da50abaa 716 uint64_t current_time;
AzureIoTClient 2:9db4da50abaa 717 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_time);
AzureIoTClient 2:9db4da50abaa 718 if ((current_time - transportState->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 2:9db4da50abaa 719 {
AzureIoTClient 2:9db4da50abaa 720 (void)mqtt_client_disconnect(transportState->mqttClient);
AzureIoTClient 2:9db4da50abaa 721 transportState->subscribed = false;
AzureIoTClient 2:9db4da50abaa 722 transportState->connected = false;
AzureIoTClient 2:9db4da50abaa 723 transportState->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 2:9db4da50abaa 724 }
AzureIoTClient 2:9db4da50abaa 725 }
AzureIoTClient 2:9db4da50abaa 726 }
Azure.IoT Build 0:5e72a75c31b8 727 return result;
Azure.IoT Build 0:5e72a75c31b8 728 }
Azure.IoT Build 0:5e72a75c31b8 729
Azure.IoT Build 0:5e72a75c31b8 730 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
Azure.IoT Build 0:5e72a75c31b8 731 {
Azure.IoT Build 0:5e72a75c31b8 732 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 733
Azure.IoT Build 0:5e72a75c31b8 734 size_t len = strlen(upperConfig->iotHubName)+strlen(upperConfig->iotHubSuffix)+strlen(upperConfig->deviceId)+strlen(CLIENT_DEVICE_TYPE_PREFIX)+strlen(IOTHUB_SDK_VERSION);
Azure.IoT Build 0:5e72a75c31b8 735 char* eventTopic = malloc(len + BUILD_CONFIG_USERNAME + 1);
Azure.IoT Build 0:5e72a75c31b8 736 if (eventTopic == NULL)
Azure.IoT Build 0:5e72a75c31b8 737 {
Azure.IoT Build 0:5e72a75c31b8 738 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 739 }
Azure.IoT Build 0:5e72a75c31b8 740 else
Azure.IoT Build 0:5e72a75c31b8 741 {
Azure.IoT Build 0:5e72a75c31b8 742 (void)sprintf(eventTopic, "%s.%s/%s/DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
Azure.IoT Build 0:5e72a75c31b8 743 result = STRING_construct(eventTopic);
Azure.IoT Build 0:5e72a75c31b8 744 free(eventTopic);
Azure.IoT Build 0:5e72a75c31b8 745 }
Azure.IoT Build 0:5e72a75c31b8 746 return result;
Azure.IoT Build 0:5e72a75c31b8 747 }
Azure.IoT Build 0:5e72a75c31b8 748
Azure.IoT Build 0:5e72a75c31b8 749 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 750 {
Azure.IoT Build 0:5e72a75c31b8 751 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
Azure.IoT Build 0:5e72a75c31b8 752 if (state == NULL)
Azure.IoT Build 0:5e72a75c31b8 753 {
AzureIoTClient 2:9db4da50abaa 754 LogError("Could not create MQTT transport state. Memory allocation failed.");
Azure.IoT Build 0:5e72a75c31b8 755 }
Azure.IoT Build 0:5e72a75c31b8 756 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
Azure.IoT Build 0:5e72a75c31b8 757 {
Azure.IoT Build 0:5e72a75c31b8 758 free(state);
Azure.IoT Build 0:5e72a75c31b8 759 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 760 }
Azure.IoT Build 0:5e72a75c31b8 761 else if ((state->device_key = STRING_construct(upperConfig->deviceKey)) == NULL)
Azure.IoT Build 0:5e72a75c31b8 762 {
AzureIoTClient 2:9db4da50abaa 763 LogError("Could not create device key for MQTT");
Azure.IoT Build 0:5e72a75c31b8 764 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 765 free(state);
Azure.IoT Build 0:5e72a75c31b8 766 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 767 }
Azure.IoT Build 0:5e72a75c31b8 768 else if ( (state->sasTokenSr = ConstructSasToken(upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId) ) == NULL)
Azure.IoT Build 0:5e72a75c31b8 769 {
AzureIoTClient 2:9db4da50abaa 770 LogError("Could not create Sas Token Sr String.");
Azure.IoT Build 0:5e72a75c31b8 771 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 772 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 773 free(state);
Azure.IoT Build 0:5e72a75c31b8 774 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 775 }
Azure.IoT Build 0:5e72a75c31b8 776 else if ( (state->mqttEventTopic = ConstructEventTopic(upperConfig->deviceId) ) == NULL)
Azure.IoT Build 0:5e72a75c31b8 777 {
AzureIoTClient 2:9db4da50abaa 778 LogError("Could not create mqttEventTopic for MQTT");
Azure.IoT Build 0:5e72a75c31b8 779 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 780 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 781 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 782 free(state);
Azure.IoT Build 0:5e72a75c31b8 783 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 784 }
Azure.IoT Build 0:5e72a75c31b8 785 else if ((state->mqttMessageTopic = ConstructMessageTopic(upperConfig->deviceId) ) == NULL)
Azure.IoT Build 0:5e72a75c31b8 786 {
AzureIoTClient 2:9db4da50abaa 787 LogError("Could not create mqttMessageTopic for MQTT");
Azure.IoT Build 0:5e72a75c31b8 788 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 789 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 790 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 791 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 792 free(state);
Azure.IoT Build 0:5e72a75c31b8 793 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 794 }
Azure.IoT Build 0:5e72a75c31b8 795 else
Azure.IoT Build 0:5e72a75c31b8 796 {
Azure.IoT Build 0:5e72a75c31b8 797 state->mqttClient = mqtt_client_init(MqttRecvCallback, MqttOpCompleteCallback, state, defaultPrintLogFunction);
Azure.IoT Build 0:5e72a75c31b8 798 if (state->mqttClient == NULL)
Azure.IoT Build 0:5e72a75c31b8 799 {
Azure.IoT Build 0:5e72a75c31b8 800 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 801 STRING_delete(state->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 802 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 803 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 804 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 805 free(state);
Azure.IoT Build 0:5e72a75c31b8 806 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 807 }
Azure.IoT Build 0:5e72a75c31b8 808 else
Azure.IoT Build 0:5e72a75c31b8 809 {
Azure.IoT Build 0:5e72a75c31b8 810 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [The hostname shall be constructed using the iothubname and iothubSuffix.] */
Azure.IoT Build 0:5e72a75c31b8 811 // TODO: need to strip the ssl or http or tls
Azure.IoT Build 0:5e72a75c31b8 812 char tempAddress[DEFAULT_TEMP_STRING_LEN];
Azure.IoT Build 0:5e72a75c31b8 813 (void)snprintf(tempAddress, DEFAULT_TEMP_STRING_LEN, "%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
Azure.IoT Build 0:5e72a75c31b8 814 if ((state->hostAddress = STRING_construct(tempAddress)) == NULL)
Azure.IoT Build 0:5e72a75c31b8 815 {
Azure.IoT Build 0:5e72a75c31b8 816 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 817 STRING_delete(state->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 818 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 819 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 820 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 821 free(state);
Azure.IoT Build 0:5e72a75c31b8 822 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 823 }
Azure.IoT Build 0:5e72a75c31b8 824 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
Azure.IoT Build 0:5e72a75c31b8 825 {
Azure.IoT Build 0:5e72a75c31b8 826 STRING_delete(state->hostAddress);
Azure.IoT Build 0:5e72a75c31b8 827 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 828 STRING_delete(state->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 829 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 830 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 831 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 832 free(state);
Azure.IoT Build 0:5e72a75c31b8 833 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 834 }
Azure.IoT Build 0:5e72a75c31b8 835 else
Azure.IoT Build 0:5e72a75c31b8 836 {
Azure.IoT Build 0:5e72a75c31b8 837 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransportMqtt_Create shall allocate memory to save its internal state where all topics, hostname, device_id, device_key, sasTokenSr and client handle shall be saved.] */
Azure.IoT Build 0:5e72a75c31b8 838 DList_InitializeListHead(&(state->waitingForAck));
Azure.IoT Build 0:5e72a75c31b8 839 state->destroyCalled = false;
Azure.IoT Build 0:5e72a75c31b8 840 state->isRegistered = false;
Azure.IoT Build 0:5e72a75c31b8 841 state->subscribed = false;
Azure.IoT Build 0:5e72a75c31b8 842 state->connected = false;
Azure.IoT Build 0:5e72a75c31b8 843 state->receiveMessages = false;
Azure.IoT Build 0:5e72a75c31b8 844 state->packetId = 1;
Azure.IoT Build 0:5e72a75c31b8 845 state->llClientHandle = NULL;
Azure.IoT Build 0:5e72a75c31b8 846 state->xioTransport = NULL;
Azure.IoT Build 0:5e72a75c31b8 847 state->portNum = DEFAULT_PORT_NUMBER;
Azure.IoT Build 0:5e72a75c31b8 848 state->waitingToSend = waitingToSend;
Azure.IoT Build 0:5e72a75c31b8 849 state->currPacketState = CONNECT_TYPE;
Azure.IoT Build 0:5e72a75c31b8 850 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 2:9db4da50abaa 851 state->connectFailCount = 0;
AzureIoTClient 2:9db4da50abaa 852 state->connectTick = 0;
Azure.IoT Build 0:5e72a75c31b8 853 }
Azure.IoT Build 0:5e72a75c31b8 854 }
Azure.IoT Build 0:5e72a75c31b8 855 }
Azure.IoT Build 0:5e72a75c31b8 856 return state;
Azure.IoT Build 0:5e72a75c31b8 857 }
Azure.IoT Build 0:5e72a75c31b8 858
Azure.IoT Build 0:5e72a75c31b8 859 extern TRANSPORT_LL_HANDLE IoTHubTransportMqtt_Create(const IOTHUBTRANSPORT_CONFIG* config)
Azure.IoT Build 0:5e72a75c31b8 860 {
Azure.IoT Build 0:5e72a75c31b8 861 PMQTTTRANSPORT_HANDLE_DATA result;
Azure.IoT Build 0:5e72a75c31b8 862 size_t deviceIdSize;
Azure.IoT Build 0:5e72a75c31b8 863
Azure.IoT Build 0:5e72a75c31b8 864 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 865 if (config == NULL)
Azure.IoT Build 0:5e72a75c31b8 866 {
AzureIoTClient 2:9db4da50abaa 867 LogError("Invalid Argument: Config Parameter is NULL.");
Azure.IoT Build 0:5e72a75c31b8 868 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 869 }
Azure.IoT Build 0:5e72a75c31b8 870 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 871 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 872 else if (config->upperConfig == NULL || config->upperConfig->protocol == NULL || config->upperConfig->deviceId == NULL || config->upperConfig->deviceKey == NULL ||
Azure.IoT Build 0:5e72a75c31b8 873 config->upperConfig->iotHubName == NULL || config->upperConfig->iotHubSuffix == NULL)
Azure.IoT Build 0:5e72a75c31b8 874 {
AzureIoTClient 2:9db4da50abaa 875 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
Azure.IoT Build 0:5e72a75c31b8 876 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 877 }
Azure.IoT Build 0:5e72a75c31b8 878 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 879 else if (config->waitingToSend == NULL)
Azure.IoT Build 0:5e72a75c31b8 880 {
AzureIoTClient 2:9db4da50abaa 881 LogError("Invalid Argument: waitingToSend is NULL)");
Azure.IoT Build 0:5e72a75c31b8 882 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 883 }
Azure.IoT Build 0:5e72a75c31b8 884 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_006: [If the upperConfig's variables deviceId is an empty strings or length is greater then 128 then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 885 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
Azure.IoT Build 0:5e72a75c31b8 886 {
AzureIoTClient 2:9db4da50abaa 887 LogError("Invalid Argument: DeviceId is of an invalid size");
Azure.IoT Build 0:5e72a75c31b8 888 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 889 }
Azure.IoT Build 0:5e72a75c31b8 890 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 891 else if (strlen(config->upperConfig->deviceKey) == 0)
Azure.IoT Build 0:5e72a75c31b8 892 {
AzureIoTClient 2:9db4da50abaa 893 LogError("Invalid Argument: deviceKey is empty");
Azure.IoT Build 0:5e72a75c31b8 894 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 895 }
Azure.IoT Build 0:5e72a75c31b8 896 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 897 else if (strlen(config->upperConfig->iotHubName) == 0)
Azure.IoT Build 0:5e72a75c31b8 898 {
AzureIoTClient 2:9db4da50abaa 899 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT Build 0:5e72a75c31b8 900 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 901 }
Azure.IoT Build 0:5e72a75c31b8 902 else
Azure.IoT Build 0:5e72a75c31b8 903 {
Azure.IoT Build 0:5e72a75c31b8 904 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
Azure.IoT Build 0:5e72a75c31b8 905 if (result != NULL)
Azure.IoT Build 0:5e72a75c31b8 906 {
Azure.IoT Build 0:5e72a75c31b8 907 g_msgTickCounter = tickcounter_create();
Azure.IoT Build 0:5e72a75c31b8 908 }
Azure.IoT Build 0:5e72a75c31b8 909 }
Azure.IoT Build 0:5e72a75c31b8 910 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransportMqtt_Create shall return NULL.] */
Azure.IoT Build 0:5e72a75c31b8 911 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransportMqtt_Create shall return a non-NULL value.] */
Azure.IoT Build 0:5e72a75c31b8 912 return result;
Azure.IoT Build 0:5e72a75c31b8 913 }
Azure.IoT Build 0:5e72a75c31b8 914
Azure.IoT Build 0:5e72a75c31b8 915 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 916 {
Azure.IoT Build 0:5e72a75c31b8 917 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_013: [If the parameter subscribe is true then IoTHubTransportMqtt_Destroy shall call IoTHubTransportMqtt_Unsubscribe.] */
Azure.IoT Build 0:5e72a75c31b8 918 if (transportState->subscribed)
Azure.IoT Build 0:5e72a75c31b8 919 {
Azure.IoT Build 0:5e72a75c31b8 920 IoTHubTransportMqtt_Unsubscribe(transportState);
Azure.IoT Build 0:5e72a75c31b8 921 }
Azure.IoT Build 0:5e72a75c31b8 922
Azure.IoT Build 0:5e72a75c31b8 923 (void)mqtt_client_disconnect(transportState->mqttClient);
Azure.IoT Build 0:5e72a75c31b8 924 xio_destroy(transportState->xioTransport);
AzureIoTClient 2:9db4da50abaa 925 transportState->xioTransport = NULL;
Azure.IoT Build 0:5e72a75c31b8 926
Azure.IoT Build 0:5e72a75c31b8 927 transportState->connected = false;
Azure.IoT Build 0:5e72a75c31b8 928 transportState->currPacketState = DISCONNECT_TYPE;
Azure.IoT Build 0:5e72a75c31b8 929 }
Azure.IoT Build 0:5e72a75c31b8 930
Azure.IoT Build 0:5e72a75c31b8 931 void IoTHubTransportMqtt_Destroy(TRANSPORT_LL_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 932 {
Azure.IoT Build 0:5e72a75c31b8 933 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
Azure.IoT Build 0:5e72a75c31b8 934 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
Azure.IoT Build 0:5e72a75c31b8 935 if (transportState != NULL)
Azure.IoT Build 0:5e72a75c31b8 936 {
Azure.IoT Build 0:5e72a75c31b8 937 transportState->destroyCalled = true;
Azure.IoT Build 0:5e72a75c31b8 938
Azure.IoT Build 0:5e72a75c31b8 939 DisconnectFromClient(transportState);
Azure.IoT Build 0:5e72a75c31b8 940
Azure.IoT Build 0:5e72a75c31b8 941 //Empty the Waiting for Ack Messages.
Azure.IoT Build 0:5e72a75c31b8 942 while (!DList_IsListEmpty(&transportState->waitingForAck))
Azure.IoT Build 0:5e72a75c31b8 943 {
Azure.IoT Build 0:5e72a75c31b8 944 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
Azure.IoT Build 0:5e72a75c31b8 945 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
Azure.IoT Build 0:5e72a75c31b8 946 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
Azure.IoT Build 0:5e72a75c31b8 947 free(mqttMsgEntry);
Azure.IoT Build 0:5e72a75c31b8 948 }
Azure.IoT Build 0:5e72a75c31b8 949
Azure.IoT Build 0:5e72a75c31b8 950 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
Azure.IoT Build 0:5e72a75c31b8 951 mqtt_client_deinit(transportState->mqttClient);
Azure.IoT Build 0:5e72a75c31b8 952 STRING_delete(transportState->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 953 STRING_delete(transportState->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 954 STRING_delete(transportState->device_id);
Azure.IoT Build 0:5e72a75c31b8 955 STRING_delete(transportState->device_key);
Azure.IoT Build 0:5e72a75c31b8 956 STRING_delete(transportState->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 957 STRING_delete(transportState->hostAddress);
Azure.IoT Build 0:5e72a75c31b8 958 STRING_delete(transportState->configPassedThroughUsername);
Azure.IoT Build 0:5e72a75c31b8 959 tickcounter_destroy(g_msgTickCounter);
Azure.IoT Build 0:5e72a75c31b8 960 free(transportState);
Azure.IoT Build 0:5e72a75c31b8 961 }
Azure.IoT Build 0:5e72a75c31b8 962 }
Azure.IoT Build 0:5e72a75c31b8 963
Azure.IoT Build 0:5e72a75c31b8 964 int IoTHubTransportMqtt_Subscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 965 {
Azure.IoT Build 0:5e72a75c31b8 966 int result;
Azure.IoT Build 0:5e72a75c31b8 967 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
Azure.IoT Build 0:5e72a75c31b8 968 if (transportState == NULL)
Azure.IoT Build 0:5e72a75c31b8 969 {
Azure.IoT Build 0:5e72a75c31b8 970 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
AzureIoTClient 2:9db4da50abaa 971 LogError("Invalid handle parameter. NULL.");
Azure.IoT Build 0:5e72a75c31b8 972 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 973 }
Azure.IoT Build 0:5e72a75c31b8 974 else
Azure.IoT Build 0:5e72a75c31b8 975 {
Azure.IoT Build 0:5e72a75c31b8 976 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the Message Topic.] */
Azure.IoT Build 0:5e72a75c31b8 977 transportState->receiveMessages = true;
Azure.IoT Build 0:5e72a75c31b8 978 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_035: [If current packet state is not CONNACT, DISCONNECT_TYPE, or PACKET_TYPE_ERROR then IoTHubTransportMqtt_Subscribe shall set the packet state to SUBSCRIBE_TYPE.]*/
Azure.IoT Build 0:5e72a75c31b8 979 if (transportState->currPacketState != CONNACK_TYPE &&
Azure.IoT Build 0:5e72a75c31b8 980 transportState->currPacketState != CONNECT_TYPE &&
Azure.IoT Build 0:5e72a75c31b8 981 transportState->currPacketState != DISCONNECT_TYPE &&
Azure.IoT Build 0:5e72a75c31b8 982 transportState->currPacketState != PACKET_TYPE_ERROR)
Azure.IoT Build 0:5e72a75c31b8 983 {
Azure.IoT Build 0:5e72a75c31b8 984 transportState->currPacketState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:5e72a75c31b8 985 }
Azure.IoT Build 0:5e72a75c31b8 986 result = 0;
Azure.IoT Build 0:5e72a75c31b8 987 }
Azure.IoT Build 0:5e72a75c31b8 988 return result;
Azure.IoT Build 0:5e72a75c31b8 989 }
Azure.IoT Build 0:5e72a75c31b8 990
Azure.IoT Build 0:5e72a75c31b8 991 void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 992 {
Azure.IoT Build 0:5e72a75c31b8 993 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
Azure.IoT Build 0:5e72a75c31b8 994 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
Azure.IoT Build 0:5e72a75c31b8 995 if (transportState != NULL && transportState->subscribed)
Azure.IoT Build 0:5e72a75c31b8 996 {
Azure.IoT Build 0:5e72a75c31b8 997 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
Azure.IoT Build 0:5e72a75c31b8 998 const char* unsubscribe[] = { STRING_c_str(transportState->mqttMessageTopic) };
Azure.IoT Build 0:5e72a75c31b8 999 (void)mqtt_client_unsubscribe(transportState->mqttClient, transportState->packetId++, unsubscribe, 1);
Azure.IoT Build 0:5e72a75c31b8 1000 transportState->subscribed = false;
Azure.IoT Build 0:5e72a75c31b8 1001 transportState->receiveMessages = false;
Azure.IoT Build 0:5e72a75c31b8 1002 }
Azure.IoT Build 0:5e72a75c31b8 1003 else
Azure.IoT Build 0:5e72a75c31b8 1004 {
AzureIoTClient 2:9db4da50abaa 1005 LogError("Invalid argument to unsubscribe (NULL).");
Azure.IoT Build 0:5e72a75c31b8 1006 }
Azure.IoT Build 0:5e72a75c31b8 1007 }
Azure.IoT Build 0:5e72a75c31b8 1008
Azure.IoT Build 0:5e72a75c31b8 1009 extern void IoTHubTransportMqtt_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
Azure.IoT Build 0:5e72a75c31b8 1010 {
Azure.IoT Build 0:5e72a75c31b8 1011 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransportMqtt_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
Azure.IoT Build 0:5e72a75c31b8 1012 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
Azure.IoT Build 0:5e72a75c31b8 1013 if (transportState != NULL && iotHubClientHandle != NULL)
Azure.IoT Build 0:5e72a75c31b8 1014 {
Azure.IoT Build 0:5e72a75c31b8 1015 transportState->llClientHandle = iotHubClientHandle;
Azure.IoT Build 0:5e72a75c31b8 1016
Azure.IoT Build 0:5e72a75c31b8 1017 if (InitializeConnection(transportState) != 0)
Azure.IoT Build 0:5e72a75c31b8 1018 {
Azure.IoT Build 0:5e72a75c31b8 1019 // Don't want to flood the logs with failures here
Azure.IoT Build 0:5e72a75c31b8 1020 }
Azure.IoT Build 0:5e72a75c31b8 1021 else
Azure.IoT Build 0:5e72a75c31b8 1022 {
Azure.IoT Build 0:5e72a75c31b8 1023 if (transportState->currPacketState == CONNACK_TYPE || transportState->currPacketState == SUBSCRIBE_TYPE)
Azure.IoT Build 0:5e72a75c31b8 1024 {
Azure.IoT Build 0:5e72a75c31b8 1025 (void)SubscribeToMqttProtocol(transportState);
Azure.IoT Build 0:5e72a75c31b8 1026 }
Azure.IoT Build 0:5e72a75c31b8 1027 else if (transportState->currPacketState == SUBACK_TYPE)
Azure.IoT Build 0:5e72a75c31b8 1028 {
Azure.IoT Build 0:5e72a75c31b8 1029 // Publish can be called now
Azure.IoT Build 0:5e72a75c31b8 1030 transportState->currPacketState = PUBLISH_TYPE;
Azure.IoT Build 0:5e72a75c31b8 1031 }
Azure.IoT Build 0:5e72a75c31b8 1032 else if (transportState->currPacketState == PUBLISH_TYPE)
Azure.IoT Build 0:5e72a75c31b8 1033 {
Azure.IoT Build 0:5e72a75c31b8 1034 PDLIST_ENTRY currentListEntry = transportState->waitingForAck.Flink;
Azure.IoT Build 0:5e72a75c31b8 1035 while (currentListEntry != &transportState->waitingForAck)
Azure.IoT Build 0:5e72a75c31b8 1036 {
Azure.IoT Build 0:5e72a75c31b8 1037 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
Azure.IoT Build 0:5e72a75c31b8 1038 DLIST_ENTRY nextListEntry;
Azure.IoT Build 0:5e72a75c31b8 1039 nextListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1040
Azure.IoT Build 0:5e72a75c31b8 1041 uint64_t current_ms;
Azure.IoT Build 0:5e72a75c31b8 1042 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_ms);
Azure.IoT Build 0:5e72a75c31b8 1043 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_033: [IoTHubTransportMqtt_DoWork shall iterate through the Waiting Acknowledge messages looking for any message that has been waiting longer than 2 min.]*/
Azure.IoT Build 0:5e72a75c31b8 1044 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
Azure.IoT Build 0:5e72a75c31b8 1045 {
Azure.IoT Build 0:5e72a75c31b8 1046 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransportMqtt_DoWork has resent the message two times then it shall fail the message] */
Azure.IoT Build 0:5e72a75c31b8 1047 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
Azure.IoT Build 0:5e72a75c31b8 1048 {
Azure.IoT Build 0:5e72a75c31b8 1049 (void)DList_RemoveEntryList(currentListEntry);
Azure.IoT Build 0:5e72a75c31b8 1050 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
Azure.IoT Build 0:5e72a75c31b8 1051 free(mqttMsgEntry);
Azure.IoT Build 0:5e72a75c31b8 1052 }
Azure.IoT Build 0:5e72a75c31b8 1053 else
Azure.IoT Build 0:5e72a75c31b8 1054 {
Azure.IoT Build 0:5e72a75c31b8 1055 size_t messageLength;
Azure.IoT Build 0:5e72a75c31b8 1056 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
Azure.IoT Build 0:5e72a75c31b8 1057 if (messageLength == 0 || messagePayload == NULL)
Azure.IoT Build 0:5e72a75c31b8 1058 {
AzureIoTClient 2:9db4da50abaa 1059 LogError("Failure from creating Message IoTHubMessage_GetData");
Azure.IoT Build 0:5e72a75c31b8 1060 }
Azure.IoT Build 0:5e72a75c31b8 1061 else
Azure.IoT Build 0:5e72a75c31b8 1062 {
Azure.IoT Build 0:5e72a75c31b8 1063 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
Azure.IoT Build 0:5e72a75c31b8 1064 {
Azure.IoT Build 0:5e72a75c31b8 1065 (void)DList_RemoveEntryList(currentListEntry);
Azure.IoT Build 0:5e72a75c31b8 1066 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
Azure.IoT Build 0:5e72a75c31b8 1067 free(mqttMsgEntry);
Azure.IoT Build 0:5e72a75c31b8 1068 }
Azure.IoT Build 0:5e72a75c31b8 1069 }
Azure.IoT Build 0:5e72a75c31b8 1070 }
Azure.IoT Build 0:5e72a75c31b8 1071 }
Azure.IoT Build 0:5e72a75c31b8 1072 currentListEntry = nextListEntry.Flink;
Azure.IoT Build 0:5e72a75c31b8 1073 }
Azure.IoT Build 0:5e72a75c31b8 1074
Azure.IoT Build 0:5e72a75c31b8 1075 currentListEntry = transportState->waitingToSend->Flink;
Azure.IoT Build 0:5e72a75c31b8 1076 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
Azure.IoT Build 0:5e72a75c31b8 1077 while (currentListEntry != transportState->waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 1078 {
Azure.IoT Build 0:5e72a75c31b8 1079 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
Azure.IoT Build 0:5e72a75c31b8 1080 DLIST_ENTRY savedFromCurrentListEntry;
Azure.IoT Build 0:5e72a75c31b8 1081 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1082
Azure.IoT Build 0:5e72a75c31b8 1083 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
Azure.IoT Build 0:5e72a75c31b8 1084 size_t messageLength;
Azure.IoT Build 0:5e72a75c31b8 1085 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
Azure.IoT Build 0:5e72a75c31b8 1086 if (messageLength == 0 || messagePayload == NULL)
Azure.IoT Build 0:5e72a75c31b8 1087 {
AzureIoTClient 2:9db4da50abaa 1088 LogError("Failure result from IoTHubMessage_GetData");
Azure.IoT Build 0:5e72a75c31b8 1089 }
Azure.IoT Build 0:5e72a75c31b8 1090 else
Azure.IoT Build 0:5e72a75c31b8 1091 {
Azure.IoT Build 0:5e72a75c31b8 1092 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_029: [IoTHubTransportMqtt_DoWork shall create a MQTT_MESSAGE_HANDLE and pass this to a call to mqtt_client_publish.] */
Azure.IoT Build 0:5e72a75c31b8 1093 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
Azure.IoT Build 0:5e72a75c31b8 1094 if (mqttMsgEntry == NULL)
Azure.IoT Build 0:5e72a75c31b8 1095 {
AzureIoTClient 2:9db4da50abaa 1096 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
Azure.IoT Build 0:5e72a75c31b8 1097 }
Azure.IoT Build 0:5e72a75c31b8 1098 else
Azure.IoT Build 0:5e72a75c31b8 1099 {
Azure.IoT Build 0:5e72a75c31b8 1100 mqttMsgEntry->retryCount = 0;
Azure.IoT Build 0:5e72a75c31b8 1101 mqttMsgEntry->msgPacketId = transportState->packetId;
Azure.IoT Build 0:5e72a75c31b8 1102 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
Azure.IoT Build 0:5e72a75c31b8 1103
Azure.IoT Build 0:5e72a75c31b8 1104 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
Azure.IoT Build 0:5e72a75c31b8 1105 {
Azure.IoT Build 0:5e72a75c31b8 1106 (void)(DList_RemoveEntryList(currentListEntry));
Azure.IoT Build 0:5e72a75c31b8 1107 sendMsgComplete(iothubMsgList, transportState, IOTHUB_BATCHSTATE_FAILED);
Azure.IoT Build 0:5e72a75c31b8 1108 free(mqttMsgEntry);
Azure.IoT Build 0:5e72a75c31b8 1109 }
Azure.IoT Build 0:5e72a75c31b8 1110 else
Azure.IoT Build 0:5e72a75c31b8 1111 {
Azure.IoT Build 0:5e72a75c31b8 1112 (void)(DList_RemoveEntryList(currentListEntry));
Azure.IoT Build 0:5e72a75c31b8 1113 DList_InsertTailList(&(transportState->waitingForAck), &(mqttMsgEntry->entry));
Azure.IoT Build 0:5e72a75c31b8 1114 }
Azure.IoT Build 0:5e72a75c31b8 1115 }
Azure.IoT Build 0:5e72a75c31b8 1116 }
Azure.IoT Build 0:5e72a75c31b8 1117 currentListEntry = savedFromCurrentListEntry.Flink;
Azure.IoT Build 0:5e72a75c31b8 1118 }
Azure.IoT Build 0:5e72a75c31b8 1119 }
Azure.IoT Build 0:5e72a75c31b8 1120 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransportMqtt_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
Azure.IoT Build 0:5e72a75c31b8 1121 mqtt_client_dowork(transportState->mqttClient);
Azure.IoT Build 0:5e72a75c31b8 1122 }
Azure.IoT Build 0:5e72a75c31b8 1123 }
Azure.IoT Build 0:5e72a75c31b8 1124 }
Azure.IoT Build 0:5e72a75c31b8 1125
Azure.IoT Build 0:5e72a75c31b8 1126 IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
Azure.IoT Build 0:5e72a75c31b8 1127 {
Azure.IoT Build 0:5e72a75c31b8 1128 IOTHUB_CLIENT_RESULT result;
Azure.IoT Build 0:5e72a75c31b8 1129
Azure.IoT Build 0:5e72a75c31b8 1130 if (handle == NULL || iotHubClientStatus == NULL)
Azure.IoT Build 0:5e72a75c31b8 1131 {
Azure.IoT Build 0:5e72a75c31b8 1132 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
AzureIoTClient 2:9db4da50abaa 1133 LogError("invalid arument.");
Azure.IoT Build 0:5e72a75c31b8 1134 result = IOTHUB_CLIENT_INVALID_ARG;
Azure.IoT Build 0:5e72a75c31b8 1135 }
Azure.IoT Build 0:5e72a75c31b8 1136 else
Azure.IoT Build 0:5e72a75c31b8 1137 {
Azure.IoT Build 0:5e72a75c31b8 1138 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
Azure.IoT Build 0:5e72a75c31b8 1139 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->waitingForAck)))
Azure.IoT Build 0:5e72a75c31b8 1140 {
Azure.IoT Build 0:5e72a75c31b8 1141 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_025: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_BUSY if there are currently event items to be sent or being sent.] */
Azure.IoT Build 0:5e72a75c31b8 1142 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
Azure.IoT Build 0:5e72a75c31b8 1143 }
Azure.IoT Build 0:5e72a75c31b8 1144 else
Azure.IoT Build 0:5e72a75c31b8 1145 {
Azure.IoT Build 0:5e72a75c31b8 1146 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_024: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_IDLE if there are currently no event items to be sent or being sent.] */
Azure.IoT Build 0:5e72a75c31b8 1147 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
Azure.IoT Build 0:5e72a75c31b8 1148 }
Azure.IoT Build 0:5e72a75c31b8 1149 result = IOTHUB_CLIENT_OK;
Azure.IoT Build 0:5e72a75c31b8 1150 }
Azure.IoT Build 0:5e72a75c31b8 1151 return result;
Azure.IoT Build 0:5e72a75c31b8 1152 }
Azure.IoT Build 0:5e72a75c31b8 1153
Azure.IoT Build 0:5e72a75c31b8 1154 IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
Azure.IoT Build 0:5e72a75c31b8 1155 {
Azure.IoT Build 0:5e72a75c31b8 1156 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
Azure.IoT Build 0:5e72a75c31b8 1157 IOTHUB_CLIENT_RESULT result;
Azure.IoT Build 0:5e72a75c31b8 1158 if (
Azure.IoT Build 0:5e72a75c31b8 1159 (handle == NULL) ||
Azure.IoT Build 0:5e72a75c31b8 1160 (option == NULL) ||
Azure.IoT Build 0:5e72a75c31b8 1161 (value == NULL)
Azure.IoT Build 0:5e72a75c31b8 1162 )
Azure.IoT Build 0:5e72a75c31b8 1163 {
Azure.IoT Build 0:5e72a75c31b8 1164 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 2:9db4da50abaa 1165 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
Azure.IoT Build 0:5e72a75c31b8 1166 }
Azure.IoT Build 0:5e72a75c31b8 1167 else
Azure.IoT Build 0:5e72a75c31b8 1168 {
Azure.IoT Build 0:5e72a75c31b8 1169 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
Azure.IoT Build 0:5e72a75c31b8 1170 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_031: [If the option parameter is set to "logtrace" then the value shall be a bool_ptr and the value will determine if the mqtt client log is on or off.] */
Azure.IoT Build 0:5e72a75c31b8 1171 if (strcmp("logtrace", option) == 0)
Azure.IoT Build 0:5e72a75c31b8 1172 {
Azure.IoT Build 0:5e72a75c31b8 1173 bool* traceVal = (bool*)value;
Azure.IoT Build 0:5e72a75c31b8 1174 mqtt_client_set_trace(transportState->mqttClient, *traceVal, *traceVal);
Azure.IoT Build 0:5e72a75c31b8 1175 result = IOTHUB_CLIENT_OK;
Azure.IoT Build 0:5e72a75c31b8 1176 }
Azure.IoT Build 0:5e72a75c31b8 1177 else if (strcmp("keepalive", option) == 0)
Azure.IoT Build 0:5e72a75c31b8 1178 {
Azure.IoT Build 0:5e72a75c31b8 1179 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_036: [If the option parameter is set to "keepalive" then the value shall be a int_ptr and the value will determine the mqtt keepalive time that is set for pings.] */
Azure.IoT Build 0:5e72a75c31b8 1180 int* keepAliveOption = (int*)value;
Azure.IoT Build 0:5e72a75c31b8 1181 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_037 : [If the option parameter is set to supplied int_ptr keepalive is the same value as the existing keepalive then IoTHubTransportMqtt_SetOption shall do nothing.] */
Azure.IoT Build 0:5e72a75c31b8 1182 if (*keepAliveOption != transportState->keepAliveValue)
Azure.IoT Build 0:5e72a75c31b8 1183 {
Azure.IoT Build 0:5e72a75c31b8 1184 transportState->keepAliveValue = *keepAliveOption;
Azure.IoT Build 0:5e72a75c31b8 1185 if (transportState->connected)
Azure.IoT Build 0:5e72a75c31b8 1186 {
Azure.IoT Build 0:5e72a75c31b8 1187 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is connected when the keepalive is set then IoTHubTransportMqtt_SetOption shall disconnect and reconnect with the specified keepalive value.] */
Azure.IoT Build 0:5e72a75c31b8 1188 DisconnectFromClient(transportState);
Azure.IoT Build 0:5e72a75c31b8 1189 }
Azure.IoT Build 0:5e72a75c31b8 1190 }
Azure.IoT Build 0:5e72a75c31b8 1191 result = IOTHUB_CLIENT_OK;
Azure.IoT Build 0:5e72a75c31b8 1192 }
Azure.IoT Build 0:5e72a75c31b8 1193 else
Azure.IoT Build 0:5e72a75c31b8 1194 {
Azure.IoT Build 0:5e72a75c31b8 1195 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_032: [IoTHubTransportMqtt_SetOption shall pass down the option to xio_setoption if the option parameter is not a known option string for the MQTT transport.] */
Azure.IoT Build 0:5e72a75c31b8 1196 if (GetTransportProviderIfNecessary(transportState) == 0)
Azure.IoT Build 0:5e72a75c31b8 1197 {
Azure.IoT Build 0:5e72a75c31b8 1198 if (xio_setoption(transportState->xioTransport, option, value) == 0)
Azure.IoT Build 0:5e72a75c31b8 1199 {
Azure.IoT Build 0:5e72a75c31b8 1200 result = IOTHUB_CLIENT_OK;
Azure.IoT Build 0:5e72a75c31b8 1201 }
Azure.IoT Build 0:5e72a75c31b8 1202 else
Azure.IoT Build 0:5e72a75c31b8 1203 {
Azure.IoT Build 0:5e72a75c31b8 1204 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
Azure.IoT Build 0:5e72a75c31b8 1205 result = IOTHUB_CLIENT_INVALID_ARG;
Azure.IoT Build 0:5e72a75c31b8 1206 }
Azure.IoT Build 0:5e72a75c31b8 1207 }
Azure.IoT Build 0:5e72a75c31b8 1208 else
Azure.IoT Build 0:5e72a75c31b8 1209 {
Azure.IoT Build 0:5e72a75c31b8 1210 result = IOTHUB_CLIENT_ERROR;
Azure.IoT Build 0:5e72a75c31b8 1211 }
Azure.IoT Build 0:5e72a75c31b8 1212 }
Azure.IoT Build 0:5e72a75c31b8 1213 }
Azure.IoT Build 0:5e72a75c31b8 1214 return result;
Azure.IoT Build 0:5e72a75c31b8 1215 }
Azure.IoT Build 0:5e72a75c31b8 1216
Azure.IoT Build 0:5e72a75c31b8 1217 IOTHUB_DEVICE_HANDLE IoTHubTransportMqtt_Register(TRANSPORT_LL_HANDLE handle, const char* deviceId, const char* deviceKey, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 1218 {
Azure.IoT Build 0:5e72a75c31b8 1219 IOTHUB_DEVICE_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 1220 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransportMqtt_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
Azure.IoT Build 0:5e72a75c31b8 1221 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransportMqtt_Register shall return NULL if deviceId, deviceKey or waitingToSend are NULL.]
Azure.IoT Build 0:5e72a75c31b8 1222 if ((handle == NULL) || (deviceId == NULL) || (deviceKey == NULL) || (waitingToSend == NULL))
Azure.IoT Build 0:5e72a75c31b8 1223 {
Azure.IoT Build 0:5e72a75c31b8 1224 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 1225 }
Azure.IoT Build 0:5e72a75c31b8 1226 else
Azure.IoT Build 0:5e72a75c31b8 1227 {
Azure.IoT Build 0:5e72a75c31b8 1228 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
Azure.IoT Build 0:5e72a75c31b8 1229
Azure.IoT Build 0:5e72a75c31b8 1230 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_003: [ IoTHubTransportMqtt_Register shall return NULL if deviceId or deviceKey do not match the deviceId and deviceKey passed in during IoTHubTransportMqtt_Create.]
Azure.IoT Build 0:5e72a75c31b8 1231 if (strcmp(STRING_c_str(transportState->device_id), deviceId) != 0)
Azure.IoT Build 0:5e72a75c31b8 1232 {
Azure.IoT Build 0:5e72a75c31b8 1233 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 1234 }
Azure.IoT Build 0:5e72a75c31b8 1235 else if (strcmp(STRING_c_str(transportState->device_key), deviceKey) != 0)
Azure.IoT Build 0:5e72a75c31b8 1236 {
Azure.IoT Build 0:5e72a75c31b8 1237 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 1238 }
Azure.IoT Build 0:5e72a75c31b8 1239 else
Azure.IoT Build 0:5e72a75c31b8 1240 {
Azure.IoT Build 0:5e72a75c31b8 1241 if (transportState->isRegistered == true)
Azure.IoT Build 0:5e72a75c31b8 1242 {
Azure.IoT Build 0:5e72a75c31b8 1243 LogError("Transport already has device registered by id: [%s]", deviceId);
Azure.IoT Build 0:5e72a75c31b8 1244 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 1245 }
Azure.IoT Build 0:5e72a75c31b8 1246 else
Azure.IoT Build 0:5e72a75c31b8 1247 {
Azure.IoT Build 0:5e72a75c31b8 1248 transportState->isRegistered = true;
Azure.IoT Build 0:5e72a75c31b8 1249 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransportMqtt_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
Azure.IoT Build 0:5e72a75c31b8 1250 result = (IOTHUB_DEVICE_HANDLE)handle;
Azure.IoT Build 0:5e72a75c31b8 1251 }
Azure.IoT Build 0:5e72a75c31b8 1252
Azure.IoT Build 0:5e72a75c31b8 1253 }
Azure.IoT Build 0:5e72a75c31b8 1254 }
Azure.IoT Build 0:5e72a75c31b8 1255
Azure.IoT Build 0:5e72a75c31b8 1256 return result;
Azure.IoT Build 0:5e72a75c31b8 1257 }
Azure.IoT Build 0:5e72a75c31b8 1258
Azure.IoT Build 0:5e72a75c31b8 1259 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ IoTHubTransportMqtt_Unregister shall return. ]
Azure.IoT Build 0:5e72a75c31b8 1260 void IoTHubTransportMqtt_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
Azure.IoT Build 0:5e72a75c31b8 1261 {
Azure.IoT Build 0:5e72a75c31b8 1262 if (deviceHandle != NULL)
Azure.IoT Build 0:5e72a75c31b8 1263 {
Azure.IoT Build 0:5e72a75c31b8 1264 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
Azure.IoT Build 0:5e72a75c31b8 1265
Azure.IoT Build 0:5e72a75c31b8 1266 transportState->isRegistered = false;
Azure.IoT Build 0:5e72a75c31b8 1267 }
Azure.IoT Build 0:5e72a75c31b8 1268 }
Azure.IoT Build 0:5e72a75c31b8 1269
Azure.IoT Build 0:5e72a75c31b8 1270 TRANSPORT_PROVIDER myfunc = {
Azure.IoT Build 0:5e72a75c31b8 1271 IoTHubTransportMqtt_SetOption,
Azure.IoT Build 0:5e72a75c31b8 1272 IoTHubTransportMqtt_Create,
Azure.IoT Build 0:5e72a75c31b8 1273 IoTHubTransportMqtt_Destroy,
Azure.IoT Build 0:5e72a75c31b8 1274 IoTHubTransportMqtt_Register,
Azure.IoT Build 0:5e72a75c31b8 1275 IoTHubTransportMqtt_Unregister,
Azure.IoT Build 0:5e72a75c31b8 1276 IoTHubTransportMqtt_Subscribe,
Azure.IoT Build 0:5e72a75c31b8 1277 IoTHubTransportMqtt_Unsubscribe,
Azure.IoT Build 0:5e72a75c31b8 1278 IoTHubTransportMqtt_DoWork,
Azure.IoT Build 0:5e72a75c31b8 1279 IoTHubTransportMqtt_GetSendStatus
Azure.IoT Build 0:5e72a75c31b8 1280 };
Azure.IoT Build 0:5e72a75c31b8 1281
Azure.IoT Build 0:5e72a75c31b8 1282 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_022: [This function shall return a pointer to a structure of type TRANSPORT_PROVIDER having the following values for it’s fields: IoTHubTransport_Create = IoTHubTransportMqtt_Create
Azure.IoT Build 0:5e72a75c31b8 1283 IoTHubTransport_Destroy = IoTHubTransportMqtt_Destroy
Azure.IoT Build 0:5e72a75c31b8 1284 IoTHubTransport_Subscribe = IoTHubTransportMqtt_Subscribe
Azure.IoT Build 0:5e72a75c31b8 1285 IoTHubTransport_Unsubscribe = IoTHubTransportMqtt_Unsubscribe
Azure.IoT Build 0:5e72a75c31b8 1286 IoTHubTransport_DoWork = IoTHubTransportMqtt_DoWork
Azure.IoT Build 0:5e72a75c31b8 1287 IoTHubTransport_SetOption = IoTHubTransportMqtt_SetOption] */
Azure.IoT Build 0:5e72a75c31b8 1288 extern const void* MQTT_Protocol(void)
Azure.IoT Build 0:5e72a75c31b8 1289 {
Azure.IoT Build 0:5e72a75c31b8 1290 return &myfunc;
Azure.IoT Build 0:5e72a75c31b8 1291 }