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@3:40f482ed0be8, 2016-05-09 (annotated)

Committer:
AzureIoTClient
Date:
Mon May 09 14:36:52 2016 -0700
Revision:
3:40f482ed0be8
Parent:
2:9db4da50abaa
Child:
4:e472f5ce3473
1.0.6

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 3:40f482ed0be8 51 const char* propName;
AzureIoTClient 3:40f482ed0be8 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 3:40f482ed0be8 56 { "%24.exp", 7 },
AzureIoTClient 3:40f482ed0be8 57 { "%24.mid", 7 },
AzureIoTClient 3:40f482ed0be8 58 { "%24.uid", 7 },
AzureIoTClient 3:40f482ed0be8 59 { "%24.to", 6 },
AzureIoTClient 3:40f482ed0be8 60 { "%24.cid", 7 },
AzureIoTClient 3:40f482ed0be8 61 { "devices/", 8 },
AzureIoTClient 3:40f482ed0be8 62 { "iothub-operation", 16 },
AzureIoTClient 3:40f482ed0be8 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 {
AzureIoTClient 3:40f482ed0be8 70 STRING_HANDLE device_id;
AzureIoTClient 3:40f482ed0be8 71 STRING_HANDLE device_key;
AzureIoTClient 3:40f482ed0be8 72 STRING_HANDLE sasTokenSr;
AzureIoTClient 3:40f482ed0be8 73 STRING_HANDLE mqttEventTopic;
AzureIoTClient 3:40f482ed0be8 74 STRING_HANDLE mqttMessageTopic;
AzureIoTClient 3:40f482ed0be8 75 STRING_HANDLE hostAddress;
AzureIoTClient 3:40f482ed0be8 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
AzureIoTClient 3:40f482ed0be8 77 // passed through the username portion of the connection frame.
AzureIoTClient 3:40f482ed0be8 78 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 3:40f482ed0be8 79 // The first segment can be a maximum 256 characters.
AzureIoTClient 3:40f482ed0be8 80 // The second segment can be a maximum 128 characters.
AzureIoTClient 3:40f482ed0be8 81 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 3:40f482ed0be8 82 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 3:40f482ed0be8 83 int portNum;
AzureIoTClient 3:40f482ed0be8 84 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 3:40f482ed0be8 85 uint16_t packetId;
AzureIoTClient 3:40f482ed0be8 86 bool sasTokenFromUser;
AzureIoTClient 3:40f482ed0be8 87 bool isRegistered;
AzureIoTClient 3:40f482ed0be8 88 bool connected;
AzureIoTClient 3:40f482ed0be8 89 bool subscribed;
AzureIoTClient 3:40f482ed0be8 90 bool receiveMessages;
AzureIoTClient 3:40f482ed0be8 91 bool destroyCalled;
AzureIoTClient 3:40f482ed0be8 92 DLIST_ENTRY waitingForAck;
AzureIoTClient 3:40f482ed0be8 93 PDLIST_ENTRY waitingToSend;
AzureIoTClient 3:40f482ed0be8 94 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 3:40f482ed0be8 95 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 3:40f482ed0be8 96 XIO_HANDLE xioTransport;
AzureIoTClient 3:40f482ed0be8 97 int keepAliveValue;
AzureIoTClient 3:40f482ed0be8 98 uint64_t mqtt_connect_time;
AzureIoTClient 3:40f482ed0be8 99 size_t connectFailCount;
AzureIoTClient 3:40f482ed0be8 100 uint64_t connectTick;
Azure.IoT Build 0:5e72a75c31b8 101 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
Azure.IoT Build 0:5e72a75c31b8 102
Azure.IoT Build 0:5e72a75c31b8 103 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
Azure.IoT Build 0:5e72a75c31b8 104 {
AzureIoTClient 3:40f482ed0be8 105 uint64_t msgPublishTime;
AzureIoTClient 3:40f482ed0be8 106 size_t retryCount;
AzureIoTClient 3:40f482ed0be8 107 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 3:40f482ed0be8 108 void* context;
AzureIoTClient 3:40f482ed0be8 109 uint16_t msgPacketId;
AzureIoTClient 3:40f482ed0be8 110 DLIST_ENTRY entry;
Azure.IoT Build 0:5e72a75c31b8 111 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
Azure.IoT Build 0:5e72a75c31b8 112
Azure.IoT Build 0:5e72a75c31b8 113 static void defaultPrintLogFunction(unsigned int options, char* format, ...)
Azure.IoT Build 0:5e72a75c31b8 114 {
AzureIoTClient 3:40f482ed0be8 115 va_list args;
AzureIoTClient 3:40f482ed0be8 116 va_start(args, format);
AzureIoTClient 3:40f482ed0be8 117 (void)vprintf(format, args);
AzureIoTClient 3:40f482ed0be8 118 va_end(args);
Azure.IoT Build 0:5e72a75c31b8 119
AzureIoTClient 3:40f482ed0be8 120 if (options & LOG_LINE)
AzureIoTClient 3:40f482ed0be8 121 {
AzureIoTClient 3:40f482ed0be8 122 (void)printf("\r\n");
AzureIoTClient 3:40f482ed0be8 123 }
Azure.IoT Build 0:5e72a75c31b8 124 }
Azure.IoT Build 0:5e72a75c31b8 125
Azure.IoT Build 0:5e72a75c31b8 126 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transportState, IOTHUB_BATCHSTATE_RESULT batchResult)
Azure.IoT Build 0:5e72a75c31b8 127 {
AzureIoTClient 3:40f482ed0be8 128 DLIST_ENTRY messageCompleted;
AzureIoTClient 3:40f482ed0be8 129 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 3:40f482ed0be8 130 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 3:40f482ed0be8 131 IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, batchResult);
Azure.IoT Build 0:5e72a75c31b8 132 }
Azure.IoT Build 0:5e72a75c31b8 133
AzureIoTClient 2:9db4da50abaa 134 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 2:9db4da50abaa 135 {
AzureIoTClient 3:40f482ed0be8 136 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 3:40f482ed0be8 137 const char* const* propertyKeys;
AzureIoTClient 3:40f482ed0be8 138 const char* const* propertyValues;
AzureIoTClient 3:40f482ed0be8 139 size_t propertyCount;
AzureIoTClient 2:9db4da50abaa 140
AzureIoTClient 3:40f482ed0be8 141 // Construct Properties
AzureIoTClient 3:40f482ed0be8 142 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 3:40f482ed0be8 143 if (properties_map != NULL)
AzureIoTClient 3:40f482ed0be8 144 {
AzureIoTClient 3:40f482ed0be8 145 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 3:40f482ed0be8 146 {
AzureIoTClient 3:40f482ed0be8 147 LogError("Failed to get the internals of the property map.");
AzureIoTClient 3:40f482ed0be8 148 STRING_delete(result);
AzureIoTClient 3:40f482ed0be8 149 result = NULL;
AzureIoTClient 3:40f482ed0be8 150 }
AzureIoTClient 3:40f482ed0be8 151 else
AzureIoTClient 3:40f482ed0be8 152 {
AzureIoTClient 3:40f482ed0be8 153 if (propertyCount != 0)
AzureIoTClient 3:40f482ed0be8 154 {
AzureIoTClient 3:40f482ed0be8 155 for (size_t index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 3:40f482ed0be8 156 {
AzureIoTClient 3:40f482ed0be8 157 size_t len = strlen(propertyKeys[index]) + strlen(propertyValues[index]) + 2;
AzureIoTClient 3:40f482ed0be8 158 char* propValues = malloc(len+1);
AzureIoTClient 3:40f482ed0be8 159 if (propValues == NULL)
AzureIoTClient 3:40f482ed0be8 160 {
AzureIoTClient 3:40f482ed0be8 161 STRING_delete(result);
AzureIoTClient 3:40f482ed0be8 162 result = NULL;
AzureIoTClient 3:40f482ed0be8 163 }
AzureIoTClient 3:40f482ed0be8 164 else
AzureIoTClient 3:40f482ed0be8 165 {
AzureIoTClient 3:40f482ed0be8 166 sprintf(propValues, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : "&");
AzureIoTClient 3:40f482ed0be8 167 if (STRING_concat(result, propValues) != 0)
AzureIoTClient 3:40f482ed0be8 168 {
AzureIoTClient 3:40f482ed0be8 169 STRING_delete(result);
AzureIoTClient 3:40f482ed0be8 170 result = NULL;
AzureIoTClient 3:40f482ed0be8 171 }
AzureIoTClient 3:40f482ed0be8 172 free(propValues);
AzureIoTClient 3:40f482ed0be8 173 }
AzureIoTClient 3:40f482ed0be8 174 }
AzureIoTClient 3:40f482ed0be8 175 }
AzureIoTClient 3:40f482ed0be8 176 }
AzureIoTClient 3:40f482ed0be8 177 }
AzureIoTClient 3:40f482ed0be8 178 return result;
AzureIoTClient 2:9db4da50abaa 179 }
AzureIoTClient 2:9db4da50abaa 180
Azure.IoT Build 0:5e72a75c31b8 181 static int publishMqttMessage(PMQTTTRANSPORT_HANDLE_DATA transportState, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
Azure.IoT Build 0:5e72a75c31b8 182 {
AzureIoTClient 3:40f482ed0be8 183 int result;
AzureIoTClient 3:40f482ed0be8 184 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transportState->mqttEventTopic));
AzureIoTClient 3:40f482ed0be8 185 if (msgTopic == NULL)
AzureIoTClient 3:40f482ed0be8 186 {
AzureIoTClient 3:40f482ed0be8 187 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 188 }
AzureIoTClient 3:40f482ed0be8 189 else
AzureIoTClient 3:40f482ed0be8 190 {
AzureIoTClient 3:40f482ed0be8 191 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(transportState->packetId++, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 3:40f482ed0be8 192 if (mqttMsg == NULL)
AzureIoTClient 3:40f482ed0be8 193 {
AzureIoTClient 3:40f482ed0be8 194 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 195 }
AzureIoTClient 3:40f482ed0be8 196 else
AzureIoTClient 3:40f482ed0be8 197 {
AzureIoTClient 3:40f482ed0be8 198 if (mqtt_client_publish(transportState->mqttClient, mqttMsg) != 0)
AzureIoTClient 3:40f482ed0be8 199 {
AzureIoTClient 3:40f482ed0be8 200 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 201 }
AzureIoTClient 3:40f482ed0be8 202 else
AzureIoTClient 3:40f482ed0be8 203 {
AzureIoTClient 3:40f482ed0be8 204 mqttMsgEntry->retryCount++;
AzureIoTClient 3:40f482ed0be8 205 (void)tickcounter_get_current_ms(g_msgTickCounter, &mqttMsgEntry->msgPublishTime);
AzureIoTClient 3:40f482ed0be8 206 result = 0;
AzureIoTClient 3:40f482ed0be8 207 }
AzureIoTClient 3:40f482ed0be8 208 mqttmessage_destroy(mqttMsg);
AzureIoTClient 3:40f482ed0be8 209 }
AzureIoTClient 3:40f482ed0be8 210 STRING_delete(msgTopic);
AzureIoTClient 3:40f482ed0be8 211 }
AzureIoTClient 3:40f482ed0be8 212 return result;
AzureIoTClient 3:40f482ed0be8 213 }
AzureIoTClient 3:40f482ed0be8 214
AzureIoTClient 3:40f482ed0be8 215 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 3:40f482ed0be8 216 {
AzureIoTClient 3:40f482ed0be8 217 bool result = false;
AzureIoTClient 3:40f482ed0be8 218 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 3:40f482ed0be8 219 for (size_t index = 0; index < propCount; index++)
AzureIoTClient 3:40f482ed0be8 220 {
AzureIoTClient 3:40f482ed0be8 221 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 3:40f482ed0be8 222 {
AzureIoTClient 3:40f482ed0be8 223 result = true;
AzureIoTClient 3:40f482ed0be8 224 break;
AzureIoTClient 3:40f482ed0be8 225 }
AzureIoTClient 3:40f482ed0be8 226 }
AzureIoTClient 3:40f482ed0be8 227 return result;
AzureIoTClient 3:40f482ed0be8 228 }
AzureIoTClient 3:40f482ed0be8 229
AzureIoTClient 3:40f482ed0be8 230 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, MQTT_MESSAGE_HANDLE msgHandle)
AzureIoTClient 3:40f482ed0be8 231 {
AzureIoTClient 3:40f482ed0be8 232 int result;
AzureIoTClient 3:40f482ed0be8 233 STRING_HANDLE mqttTopic = STRING_construct(mqttmessage_getTopicName(msgHandle));
AzureIoTClient 3:40f482ed0be8 234
AzureIoTClient 3:40f482ed0be8 235 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 3:40f482ed0be8 236 if (token != NULL)
AzureIoTClient 3:40f482ed0be8 237 {
AzureIoTClient 3:40f482ed0be8 238 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 3:40f482ed0be8 239 if (propertyMap == NULL)
AzureIoTClient 3:40f482ed0be8 240 {
AzureIoTClient 3:40f482ed0be8 241 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 3:40f482ed0be8 242 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 243 }
AzureIoTClient 3:40f482ed0be8 244 else
AzureIoTClient 3:40f482ed0be8 245 {
AzureIoTClient 3:40f482ed0be8 246 STRING_HANDLE output = STRING_new();
AzureIoTClient 3:40f482ed0be8 247 if (output == NULL)
AzureIoTClient 3:40f482ed0be8 248 {
AzureIoTClient 3:40f482ed0be8 249 LogError("Failure to allocate STRING_new.");
AzureIoTClient 3:40f482ed0be8 250 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 251 }
AzureIoTClient 3:40f482ed0be8 252 else
AzureIoTClient 3:40f482ed0be8 253 {
AzureIoTClient 3:40f482ed0be8 254 result = 0;
AzureIoTClient 3:40f482ed0be8 255 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 3:40f482ed0be8 256 {
AzureIoTClient 3:40f482ed0be8 257 const char* tokenData = STRING_c_str(output);
AzureIoTClient 3:40f482ed0be8 258 size_t tokenLen = strlen(tokenData);
AzureIoTClient 3:40f482ed0be8 259 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 3:40f482ed0be8 260 {
AzureIoTClient 3:40f482ed0be8 261 break;
AzureIoTClient 3:40f482ed0be8 262 }
AzureIoTClient 3:40f482ed0be8 263 else
AzureIoTClient 3:40f482ed0be8 264 {
AzureIoTClient 3:40f482ed0be8 265 if (!isSystemProperty(tokenData) )
AzureIoTClient 3:40f482ed0be8 266 {
AzureIoTClient 3:40f482ed0be8 267 const char* iterator = tokenData;
AzureIoTClient 3:40f482ed0be8 268 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 3:40f482ed0be8 269 {
AzureIoTClient 3:40f482ed0be8 270 if (*iterator == '=')
AzureIoTClient 3:40f482ed0be8 271 {
AzureIoTClient 3:40f482ed0be8 272 size_t nameLen = iterator - tokenData;
AzureIoTClient 3:40f482ed0be8 273 char* propName = malloc(nameLen + 1);
AzureIoTClient 3:40f482ed0be8 274
AzureIoTClient 3:40f482ed0be8 275 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 3:40f482ed0be8 276 char* propValue = malloc(valLen + 1);
AzureIoTClient 3:40f482ed0be8 277
AzureIoTClient 3:40f482ed0be8 278 if (propName == NULL || propValue == NULL)
AzureIoTClient 3:40f482ed0be8 279 {
AzureIoTClient 3:40f482ed0be8 280 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 281 }
AzureIoTClient 3:40f482ed0be8 282 else
AzureIoTClient 3:40f482ed0be8 283 {
AzureIoTClient 3:40f482ed0be8 284 strncpy(propName, tokenData, nameLen);
AzureIoTClient 3:40f482ed0be8 285 propName[nameLen] = '\0';
AzureIoTClient 3:40f482ed0be8 286
AzureIoTClient 3:40f482ed0be8 287 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 3:40f482ed0be8 288 propValue[valLen] = '\0';
AzureIoTClient 3:40f482ed0be8 289
AzureIoTClient 3:40f482ed0be8 290 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 3:40f482ed0be8 291 {
AzureIoTClient 3:40f482ed0be8 292 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 3:40f482ed0be8 293 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 294 }
AzureIoTClient 3:40f482ed0be8 295 }
AzureIoTClient 3:40f482ed0be8 296 free(propName);
AzureIoTClient 3:40f482ed0be8 297 free(propValue);
AzureIoTClient 3:40f482ed0be8 298
AzureIoTClient 3:40f482ed0be8 299 break;
AzureIoTClient 3:40f482ed0be8 300 }
AzureIoTClient 3:40f482ed0be8 301 iterator++;
AzureIoTClient 3:40f482ed0be8 302 }
AzureIoTClient 3:40f482ed0be8 303 }
AzureIoTClient 3:40f482ed0be8 304 }
AzureIoTClient 3:40f482ed0be8 305 }
AzureIoTClient 3:40f482ed0be8 306 STRING_delete(output);
AzureIoTClient 3:40f482ed0be8 307 }
AzureIoTClient 3:40f482ed0be8 308 }
AzureIoTClient 3:40f482ed0be8 309 STRING_TOKENIZER_destroy(token);
AzureIoTClient 3:40f482ed0be8 310 }
AzureIoTClient 3:40f482ed0be8 311 else
AzureIoTClient 3:40f482ed0be8 312 {
AzureIoTClient 3:40f482ed0be8 313 LogError("Unable to create Tokenizer object.");
AzureIoTClient 3:40f482ed0be8 314 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 315 }
AzureIoTClient 3:40f482ed0be8 316 STRING_delete(mqttTopic);
AzureIoTClient 3:40f482ed0be8 317
AzureIoTClient 3:40f482ed0be8 318 return result;
AzureIoTClient 3:40f482ed0be8 319 }
AzureIoTClient 3:40f482ed0be8 320
AzureIoTClient 3:40f482ed0be8 321 static void MqttRecvCallback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 3:40f482ed0be8 322 {
AzureIoTClient 3:40f482ed0be8 323 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 3:40f482ed0be8 324 {
AzureIoTClient 3:40f482ed0be8 325 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 3:40f482ed0be8 326 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 3:40f482ed0be8 327 if (IoTHubMessage == NULL)
AzureIoTClient 3:40f482ed0be8 328 {
AzureIoTClient 3:40f482ed0be8 329 LogError("IotHub Message creation has failed.");
AzureIoTClient 3:40f482ed0be8 330 }
AzureIoTClient 3:40f482ed0be8 331 else
AzureIoTClient 3:40f482ed0be8 332 {
AzureIoTClient 3:40f482ed0be8 333 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 3:40f482ed0be8 334 (void)extractMqttProperties(IoTHubMessage, msgHandle);
AzureIoTClient 3:40f482ed0be8 335 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 3:40f482ed0be8 336 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
AzureIoTClient 3:40f482ed0be8 337 {
AzureIoTClient 3:40f482ed0be8 338 LogError("Event not accepted by our client.");
AzureIoTClient 3:40f482ed0be8 339 }
AzureIoTClient 3:40f482ed0be8 340 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 3:40f482ed0be8 341 }
AzureIoTClient 3:40f482ed0be8 342 }
AzureIoTClient 3:40f482ed0be8 343 }
AzureIoTClient 3:40f482ed0be8 344
AzureIoTClient 3:40f482ed0be8 345 static void MqttOpCompleteCallback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 3:40f482ed0be8 346 {
AzureIoTClient 3:40f482ed0be8 347 (void)handle;
AzureIoTClient 3:40f482ed0be8 348 if (callbackCtx != NULL)
AzureIoTClient 3:40f482ed0be8 349 {
AzureIoTClient 3:40f482ed0be8 350 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 3:40f482ed0be8 351
AzureIoTClient 3:40f482ed0be8 352 switch (actionResult)
AzureIoTClient 3:40f482ed0be8 353 {
AzureIoTClient 3:40f482ed0be8 354 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 3:40f482ed0be8 355 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 3:40f482ed0be8 356 {
AzureIoTClient 3:40f482ed0be8 357 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 3:40f482ed0be8 358 if (puback != NULL)
AzureIoTClient 3:40f482ed0be8 359 {
AzureIoTClient 3:40f482ed0be8 360 PDLIST_ENTRY currentListEntry = transportData->waitingForAck.Flink;
AzureIoTClient 3:40f482ed0be8 361 while (currentListEntry != &transportData->waitingForAck)
AzureIoTClient 3:40f482ed0be8 362 {
AzureIoTClient 3:40f482ed0be8 363 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 3:40f482ed0be8 364 DLIST_ENTRY saveListEntry;
AzureIoTClient 3:40f482ed0be8 365 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 3:40f482ed0be8 366
AzureIoTClient 3:40f482ed0be8 367 if (puback->packetId == mqttMsgEntry->msgPacketId)
AzureIoTClient 3:40f482ed0be8 368 {
AzureIoTClient 3:40f482ed0be8 369 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 3:40f482ed0be8 370 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportData, IOTHUB_BATCHSTATE_SUCCESS);
AzureIoTClient 3:40f482ed0be8 371 free(mqttMsgEntry);
AzureIoTClient 3:40f482ed0be8 372 }
AzureIoTClient 3:40f482ed0be8 373 currentListEntry = saveListEntry.Flink;
AzureIoTClient 3:40f482ed0be8 374 }
AzureIoTClient 3:40f482ed0be8 375 }
AzureIoTClient 3:40f482ed0be8 376 break;
AzureIoTClient 3:40f482ed0be8 377 }
AzureIoTClient 3:40f482ed0be8 378 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 3:40f482ed0be8 379 {
AzureIoTClient 3:40f482ed0be8 380 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 3:40f482ed0be8 381 if (connack != NULL)
AzureIoTClient 3:40f482ed0be8 382 {
AzureIoTClient 3:40f482ed0be8 383 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 3:40f482ed0be8 384 {
AzureIoTClient 3:40f482ed0be8 385 // The connect packet has been acked
AzureIoTClient 3:40f482ed0be8 386 transportData->currPacketState = CONNACK_TYPE;
AzureIoTClient 3:40f482ed0be8 387 }
AzureIoTClient 3:40f482ed0be8 388 else
AzureIoTClient 3:40f482ed0be8 389 {
AzureIoTClient 3:40f482ed0be8 390 LogError("Connection not accepted, return code: %d.", connack->returnCode);
AzureIoTClient 3:40f482ed0be8 391 (void)mqtt_client_disconnect(transportData->mqttClient);
AzureIoTClient 3:40f482ed0be8 392 transportData->connected = false;
AzureIoTClient 3:40f482ed0be8 393 transportData->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 3:40f482ed0be8 394 }
AzureIoTClient 3:40f482ed0be8 395 }
AzureIoTClient 3:40f482ed0be8 396 else
AzureIoTClient 3:40f482ed0be8 397 {
AzureIoTClient 3:40f482ed0be8 398 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 3:40f482ed0be8 399 }
AzureIoTClient 3:40f482ed0be8 400 break;
AzureIoTClient 3:40f482ed0be8 401 }
AzureIoTClient 3:40f482ed0be8 402 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 3:40f482ed0be8 403 {
AzureIoTClient 3:40f482ed0be8 404 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 3:40f482ed0be8 405 if (suback != NULL)
AzureIoTClient 3:40f482ed0be8 406 {
AzureIoTClient 3:40f482ed0be8 407 if (suback->qosCount == 1)
AzureIoTClient 3:40f482ed0be8 408 {
AzureIoTClient 3:40f482ed0be8 409 // The connect packet has been acked
AzureIoTClient 3:40f482ed0be8 410 transportData->currPacketState = SUBACK_TYPE;
AzureIoTClient 3:40f482ed0be8 411 }
AzureIoTClient 3:40f482ed0be8 412 else
AzureIoTClient 3:40f482ed0be8 413 {
AzureIoTClient 3:40f482ed0be8 414 LogError("QOS count was not expected: %d.", (int)suback->qosCount);
AzureIoTClient 3:40f482ed0be8 415 }
AzureIoTClient 3:40f482ed0be8 416 }
AzureIoTClient 3:40f482ed0be8 417 break;
AzureIoTClient 3:40f482ed0be8 418 }
AzureIoTClient 3:40f482ed0be8 419 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 3:40f482ed0be8 420 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 3:40f482ed0be8 421 {
AzureIoTClient 3:40f482ed0be8 422 // Currently not used
AzureIoTClient 3:40f482ed0be8 423 break;
AzureIoTClient 3:40f482ed0be8 424 }
AzureIoTClient 3:40f482ed0be8 425 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 3:40f482ed0be8 426 {
AzureIoTClient 3:40f482ed0be8 427 // Close the client so we can reconnect again
AzureIoTClient 3:40f482ed0be8 428 transportData->connected = false;
AzureIoTClient 3:40f482ed0be8 429 transportData->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 3:40f482ed0be8 430 break;
AzureIoTClient 3:40f482ed0be8 431 }
AzureIoTClient 3:40f482ed0be8 432 case MQTT_CLIENT_ON_ERROR:
AzureIoTClient 3:40f482ed0be8 433 {
AzureIoTClient 3:40f482ed0be8 434 xio_close(transportData->xioTransport, NULL, NULL);
AzureIoTClient 3:40f482ed0be8 435 transportData->connected = false;
AzureIoTClient 3:40f482ed0be8 436 transportData->subscribed = false;
AzureIoTClient 3:40f482ed0be8 437 transportData->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 3:40f482ed0be8 438 }
AzureIoTClient 3:40f482ed0be8 439 }
AzureIoTClient 3:40f482ed0be8 440 }
AzureIoTClient 3:40f482ed0be8 441 }
AzureIoTClient 3:40f482ed0be8 442
AzureIoTClient 3:40f482ed0be8 443 const XIO_HANDLE getIoTransportProvider(const char* fqdn, int port)
AzureIoTClient 3:40f482ed0be8 444 {
AzureIoTClient 3:40f482ed0be8 445 TLSIO_CONFIG tls_io_config = { fqdn, port };
AzureIoTClient 3:40f482ed0be8 446 const IO_INTERFACE_DESCRIPTION* io_interface_description = platform_get_default_tlsio();
AzureIoTClient 3:40f482ed0be8 447 return (void*)xio_create(io_interface_description, &tls_io_config, NULL/*defaultPrintLogFunction*/);
AzureIoTClient 3:40f482ed0be8 448 }
AzureIoTClient 3:40f482ed0be8 449
AzureIoTClient 3:40f482ed0be8 450 static int SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 451 {
AzureIoTClient 3:40f482ed0be8 452 int result;
AzureIoTClient 3:40f482ed0be8 453
AzureIoTClient 3:40f482ed0be8 454 if (transportState->receiveMessages && !transportState->subscribed)
AzureIoTClient 3:40f482ed0be8 455 {
AzureIoTClient 3:40f482ed0be8 456 SUBSCRIBE_PAYLOAD subscribe[] = {
AzureIoTClient 3:40f482ed0be8 457 { STRING_c_str(transportState->mqttMessageTopic), DELIVER_AT_LEAST_ONCE }
AzureIoTClient 3:40f482ed0be8 458 };
AzureIoTClient 3:40f482ed0be8 459 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
AzureIoTClient 3:40f482ed0be8 460 if (mqtt_client_subscribe(transportState->mqttClient, transportState->packetId++, subscribe, 1) != 0)
AzureIoTClient 3:40f482ed0be8 461 {
AzureIoTClient 3:40f482ed0be8 462 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
AzureIoTClient 3:40f482ed0be8 463 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 464 }
AzureIoTClient 3:40f482ed0be8 465 else
AzureIoTClient 3:40f482ed0be8 466 {
AzureIoTClient 3:40f482ed0be8 467 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransportMqtt_Subscribe shall return 0.] */
AzureIoTClient 3:40f482ed0be8 468 transportState->subscribed = true;
AzureIoTClient 3:40f482ed0be8 469 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 3:40f482ed0be8 470 result = 0;
AzureIoTClient 3:40f482ed0be8 471 }
AzureIoTClient 3:40f482ed0be8 472 }
AzureIoTClient 3:40f482ed0be8 473 else
AzureIoTClient 3:40f482ed0be8 474 {
AzureIoTClient 3:40f482ed0be8 475 if (transportState->receiveMessages)
AzureIoTClient 3:40f482ed0be8 476 {
AzureIoTClient 3:40f482ed0be8 477 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 3:40f482ed0be8 478 }
AzureIoTClient 3:40f482ed0be8 479 else
AzureIoTClient 3:40f482ed0be8 480 {
AzureIoTClient 3:40f482ed0be8 481 transportState->currPacketState = PUBLISH_TYPE;
AzureIoTClient 3:40f482ed0be8 482 }
AzureIoTClient 3:40f482ed0be8 483 }
AzureIoTClient 3:40f482ed0be8 484 return result;
AzureIoTClient 3:40f482ed0be8 485 }
AzureIoTClient 3:40f482ed0be8 486
AzureIoTClient 3:40f482ed0be8 487 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 3:40f482ed0be8 488 {
AzureIoTClient 3:40f482ed0be8 489 const unsigned char* result;
AzureIoTClient 3:40f482ed0be8 490
AzureIoTClient 3:40f482ed0be8 491 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 3:40f482ed0be8 492 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 3:40f482ed0be8 493 {
AzureIoTClient 3:40f482ed0be8 494 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 3:40f482ed0be8 495 {
AzureIoTClient 3:40f482ed0be8 496 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 3:40f482ed0be8 497 result = NULL;
AzureIoTClient 3:40f482ed0be8 498 *length = 0;
AzureIoTClient 3:40f482ed0be8 499 }
AzureIoTClient 3:40f482ed0be8 500 }
AzureIoTClient 3:40f482ed0be8 501 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 3:40f482ed0be8 502 {
AzureIoTClient 3:40f482ed0be8 503 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 3:40f482ed0be8 504 if (result == NULL)
AzureIoTClient 3:40f482ed0be8 505 {
AzureIoTClient 3:40f482ed0be8 506 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 3:40f482ed0be8 507 result = NULL;
AzureIoTClient 3:40f482ed0be8 508 *length = 0;
AzureIoTClient 3:40f482ed0be8 509 }
AzureIoTClient 3:40f482ed0be8 510 else
AzureIoTClient 3:40f482ed0be8 511 {
AzureIoTClient 3:40f482ed0be8 512 *length = strlen((const char*)result);
AzureIoTClient 3:40f482ed0be8 513 }
AzureIoTClient 3:40f482ed0be8 514 }
AzureIoTClient 3:40f482ed0be8 515 else
AzureIoTClient 3:40f482ed0be8 516 {
AzureIoTClient 3:40f482ed0be8 517 result = NULL;
AzureIoTClient 3:40f482ed0be8 518 *length = 0;
AzureIoTClient 3:40f482ed0be8 519 }
AzureIoTClient 3:40f482ed0be8 520 return result;
AzureIoTClient 3:40f482ed0be8 521 }
AzureIoTClient 3:40f482ed0be8 522
AzureIoTClient 3:40f482ed0be8 523 static STRING_HANDLE ConstructSasToken(const char* iothubName, const char* iotHubSuffix, const char* deviceId)
AzureIoTClient 3:40f482ed0be8 524 {
AzureIoTClient 3:40f482ed0be8 525 STRING_HANDLE result;
AzureIoTClient 3:40f482ed0be8 526 size_t len = strlen(iothubName);
AzureIoTClient 3:40f482ed0be8 527 len += strlen(iotHubSuffix);
AzureIoTClient 3:40f482ed0be8 528 len += strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 529
AzureIoTClient 3:40f482ed0be8 530 char* sasToken = malloc(len + SAS_TOKEN_DEFAULT_LEN + 1);
AzureIoTClient 3:40f482ed0be8 531 if (sasToken == NULL)
AzureIoTClient 3:40f482ed0be8 532 {
AzureIoTClient 3:40f482ed0be8 533 result = NULL;
AzureIoTClient 3:40f482ed0be8 534 }
AzureIoTClient 3:40f482ed0be8 535 else
AzureIoTClient 3:40f482ed0be8 536 {
AzureIoTClient 3:40f482ed0be8 537 (void)sprintf(sasToken, "%s.%s/devices/%s", iothubName, iotHubSuffix, deviceId);
AzureIoTClient 3:40f482ed0be8 538 result = STRING_construct(sasToken);
AzureIoTClient 3:40f482ed0be8 539 free(sasToken);
AzureIoTClient 3:40f482ed0be8 540 }
AzureIoTClient 3:40f482ed0be8 541 return result;
AzureIoTClient 3:40f482ed0be8 542 }
AzureIoTClient 3:40f482ed0be8 543
AzureIoTClient 3:40f482ed0be8 544 static STRING_HANDLE ConstructEventTopic(const char* deviceId)
AzureIoTClient 3:40f482ed0be8 545 {
AzureIoTClient 3:40f482ed0be8 546 STRING_HANDLE result;
AzureIoTClient 3:40f482ed0be8 547 size_t len = strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 548
AzureIoTClient 3:40f482ed0be8 549 char* eventTopic = malloc(len + EVENT_TOPIC_DEFAULT_LEN + 1);
AzureIoTClient 3:40f482ed0be8 550 if (eventTopic == NULL)
AzureIoTClient 3:40f482ed0be8 551 {
AzureIoTClient 3:40f482ed0be8 552 result = NULL;
AzureIoTClient 3:40f482ed0be8 553 }
AzureIoTClient 3:40f482ed0be8 554 else
AzureIoTClient 3:40f482ed0be8 555 {
AzureIoTClient 3:40f482ed0be8 556 (void)sprintf(eventTopic, DEVICE_DEVICE_TOPIC, deviceId);
AzureIoTClient 3:40f482ed0be8 557 result = STRING_construct(eventTopic);
AzureIoTClient 3:40f482ed0be8 558 free(eventTopic);
AzureIoTClient 3:40f482ed0be8 559 }
AzureIoTClient 3:40f482ed0be8 560 return result;
AzureIoTClient 3:40f482ed0be8 561 }
AzureIoTClient 3:40f482ed0be8 562
AzureIoTClient 3:40f482ed0be8 563 static STRING_HANDLE ConstructMessageTopic(const char* deviceId)
AzureIoTClient 3:40f482ed0be8 564 {
AzureIoTClient 3:40f482ed0be8 565 STRING_HANDLE result;
AzureIoTClient 3:40f482ed0be8 566 size_t len = strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 567
AzureIoTClient 3:40f482ed0be8 568 char* messageTopic = malloc(len + 32 + 1);
AzureIoTClient 3:40f482ed0be8 569 if (messageTopic == NULL)
AzureIoTClient 3:40f482ed0be8 570 {
AzureIoTClient 3:40f482ed0be8 571 result = NULL;
AzureIoTClient 3:40f482ed0be8 572 }
AzureIoTClient 3:40f482ed0be8 573 else
AzureIoTClient 3:40f482ed0be8 574 {
AzureIoTClient 3:40f482ed0be8 575 (void)sprintf(messageTopic, DEVICE_MSG_TOPIC, deviceId);
AzureIoTClient 3:40f482ed0be8 576 result = STRING_construct(messageTopic);
AzureIoTClient 3:40f482ed0be8 577 free(messageTopic);
AzureIoTClient 3:40f482ed0be8 578 }
AzureIoTClient 3:40f482ed0be8 579 return result;
AzureIoTClient 3:40f482ed0be8 580 }
AzureIoTClient 3:40f482ed0be8 581
AzureIoTClient 3:40f482ed0be8 582 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 583 {
AzureIoTClient 3:40f482ed0be8 584 int result;
AzureIoTClient 3:40f482ed0be8 585
AzureIoTClient 3:40f482ed0be8 586 if (transportState->xioTransport == NULL)
AzureIoTClient 3:40f482ed0be8 587 {
AzureIoTClient 3:40f482ed0be8 588 // construct address
AzureIoTClient 3:40f482ed0be8 589 const char* hostAddress = STRING_c_str(transportState->hostAddress);
AzureIoTClient 3:40f482ed0be8 590 const char* hostName = strstr(hostAddress, "//");
AzureIoTClient 3:40f482ed0be8 591 if (hostName == NULL)
AzureIoTClient 3:40f482ed0be8 592 {
AzureIoTClient 3:40f482ed0be8 593 hostName = hostAddress;
AzureIoTClient 3:40f482ed0be8 594 }
AzureIoTClient 3:40f482ed0be8 595 else
AzureIoTClient 3:40f482ed0be8 596 {
AzureIoTClient 3:40f482ed0be8 597 // Increment beyond the double backslash
AzureIoTClient 3:40f482ed0be8 598 hostName += 2;
AzureIoTClient 3:40f482ed0be8 599 }
AzureIoTClient 3:40f482ed0be8 600 transportState->xioTransport = getIoTransportProvider(hostName, transportState->portNum);
AzureIoTClient 3:40f482ed0be8 601 if (transportState->xioTransport == NULL)
AzureIoTClient 3:40f482ed0be8 602 {
AzureIoTClient 3:40f482ed0be8 603 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 3:40f482ed0be8 604 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 605 }
AzureIoTClient 3:40f482ed0be8 606 else
AzureIoTClient 3:40f482ed0be8 607 {
AzureIoTClient 3:40f482ed0be8 608 result = 0;
AzureIoTClient 3:40f482ed0be8 609 }
AzureIoTClient 3:40f482ed0be8 610 }
AzureIoTClient 3:40f482ed0be8 611 else
AzureIoTClient 3:40f482ed0be8 612 {
AzureIoTClient 3:40f482ed0be8 613 result = 0;
AzureIoTClient 3:40f482ed0be8 614 }
AzureIoTClient 3:40f482ed0be8 615 return result;
AzureIoTClient 3:40f482ed0be8 616 }
AzureIoTClient 3:40f482ed0be8 617
AzureIoTClient 3:40f482ed0be8 618 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 619 {
AzureIoTClient 3:40f482ed0be8 620 int result;
AzureIoTClient 3:40f482ed0be8 621
AzureIoTClient 3:40f482ed0be8 622 // Construct SAS token
AzureIoTClient 3:40f482ed0be8 623 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 3:40f482ed0be8 624 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 3:40f482ed0be8 625
AzureIoTClient 3:40f482ed0be8 626 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 3:40f482ed0be8 627 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 3:40f482ed0be8 628 if (emptyKeyName == 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 {
AzureIoTClient 3:40f482ed0be8 634 STRING_HANDLE sasToken = NULL;
AzureIoTClient 3:40f482ed0be8 635 if (transportState->sasTokenFromUser)
AzureIoTClient 3:40f482ed0be8 636 {
AzureIoTClient 3:40f482ed0be8 637 sasToken = STRING_clone(transportState->sasTokenSr);
AzureIoTClient 3:40f482ed0be8 638 }
AzureIoTClient 3:40f482ed0be8 639 else
AzureIoTClient 3:40f482ed0be8 640 {
AzureIoTClient 3:40f482ed0be8 641 sasToken = SASToken_Create(transportState->device_key, transportState->sasTokenSr, emptyKeyName, expiryTime);
AzureIoTClient 3:40f482ed0be8 642 }
AzureIoTClient 3:40f482ed0be8 643
AzureIoTClient 3:40f482ed0be8 644 if (sasToken == NULL)
Azure.IoT Build 0:5e72a75c31b8 645 {
Azure.IoT Build 0:5e72a75c31b8 646 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 647 }
Azure.IoT Build 0:5e72a75c31b8 648 else
Azure.IoT Build 0:5e72a75c31b8 649 {
AzureIoTClient 3:40f482ed0be8 650 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 3:40f482ed0be8 651 options.clientId = (char*)STRING_c_str(transportState->device_id);
AzureIoTClient 3:40f482ed0be8 652 options.willMessage = NULL;
AzureIoTClient 3:40f482ed0be8 653 options.username = (char*)STRING_c_str(transportState->configPassedThroughUsername);
AzureIoTClient 3:40f482ed0be8 654 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 3:40f482ed0be8 655 options.keepAliveInterval = transportState->keepAliveValue;
AzureIoTClient 3:40f482ed0be8 656 options.useCleanSession = false;
AzureIoTClient 3:40f482ed0be8 657 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 2:9db4da50abaa 658
AzureIoTClient 3:40f482ed0be8 659 if (GetTransportProviderIfNecessary(transportState) == 0)
Azure.IoT Build 0:5e72a75c31b8 660 {
AzureIoTClient 3:40f482ed0be8 661 if (mqtt_client_connect(transportState->mqttClient, transportState->xioTransport, &options) != 0)
Azure.IoT Build 0:5e72a75c31b8 662 {
AzureIoTClient 3:40f482ed0be8 663 LogError("failure connecting to address %s:%d.", STRING_c_str(transportState->hostAddress), transportState->portNum);
AzureIoTClient 3:40f482ed0be8 664 xio_destroy(transportState->xioTransport);
AzureIoTClient 3:40f482ed0be8 665 transportState->xioTransport = NULL;
AzureIoTClient 3:40f482ed0be8 666 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 667 }
Azure.IoT Build 0:5e72a75c31b8 668 else
Azure.IoT Build 0:5e72a75c31b8 669 {
AzureIoTClient 3:40f482ed0be8 670 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->mqtt_connect_time);
AzureIoTClient 3:40f482ed0be8 671 result = 0;
Azure.IoT Build 0:5e72a75c31b8 672 }
Azure.IoT Build 0:5e72a75c31b8 673 }
Azure.IoT Build 0:5e72a75c31b8 674 else
Azure.IoT Build 0:5e72a75c31b8 675 {
AzureIoTClient 3:40f482ed0be8 676 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 677 }
Azure.IoT Build 0:5e72a75c31b8 678 }
AzureIoTClient 3:40f482ed0be8 679 STRING_delete(emptyKeyName);
AzureIoTClient 3:40f482ed0be8 680 STRING_delete(sasToken);
AzureIoTClient 2:9db4da50abaa 681 }
AzureIoTClient 3:40f482ed0be8 682 return result;
Azure.IoT Build 0:5e72a75c31b8 683 }
Azure.IoT Build 0:5e72a75c31b8 684
Azure.IoT Build 0:5e72a75c31b8 685 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 686 {
AzureIoTClient 3:40f482ed0be8 687 int result = 0;
AzureIoTClient 2:9db4da50abaa 688
AzureIoTClient 3:40f482ed0be8 689 // Make sure we're not destroying the object
AzureIoTClient 3:40f482ed0be8 690 if (!transportState->destroyCalled)
AzureIoTClient 3:40f482ed0be8 691 {
AzureIoTClient 3:40f482ed0be8 692 // If we are not connected then check to see if we need
AzureIoTClient 3:40f482ed0be8 693 // to back off the connecting to the server
AzureIoTClient 3:40f482ed0be8 694 if (!transportState->connected)
AzureIoTClient 3:40f482ed0be8 695 {
AzureIoTClient 3:40f482ed0be8 696 // Default makeConnection as true if something goes wrong we'll make the connection
AzureIoTClient 3:40f482ed0be8 697 bool makeConnection = true;
AzureIoTClient 3:40f482ed0be8 698 // If we've failed for FAILED_CONN_BACKOFF_VALUE straight times them let's slow down connection
AzureIoTClient 3:40f482ed0be8 699 // to the service
AzureIoTClient 3:40f482ed0be8 700 if (transportState->connectFailCount > FAILED_CONN_BACKOFF_VALUE)
AzureIoTClient 3:40f482ed0be8 701 {
AzureIoTClient 3:40f482ed0be8 702 uint64_t currentTick;
AzureIoTClient 3:40f482ed0be8 703 if (tickcounter_get_current_ms(g_msgTickCounter, &currentTick) == 0)
AzureIoTClient 3:40f482ed0be8 704 {
AzureIoTClient 3:40f482ed0be8 705 if ( ((currentTick - transportState->connectTick)/1000) <= DEFAULT_CONNECTION_INTERVAL)
AzureIoTClient 3:40f482ed0be8 706 {
AzureIoTClient 3:40f482ed0be8 707 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 708 makeConnection = false;
AzureIoTClient 3:40f482ed0be8 709 }
AzureIoTClient 3:40f482ed0be8 710 }
AzureIoTClient 3:40f482ed0be8 711 }
AzureIoTClient 2:9db4da50abaa 712
AzureIoTClient 3:40f482ed0be8 713 if (makeConnection)
AzureIoTClient 3:40f482ed0be8 714 {
AzureIoTClient 3:40f482ed0be8 715 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->connectTick);
AzureIoTClient 3:40f482ed0be8 716 if (SendMqttConnectMsg(transportState) != 0)
AzureIoTClient 3:40f482ed0be8 717 {
AzureIoTClient 3:40f482ed0be8 718 transportState->connectFailCount++;
AzureIoTClient 3:40f482ed0be8 719 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 720 }
AzureIoTClient 3:40f482ed0be8 721 else
AzureIoTClient 3:40f482ed0be8 722 {
AzureIoTClient 3:40f482ed0be8 723 transportState->connectFailCount = 0;
AzureIoTClient 3:40f482ed0be8 724 transportState->connected = true;
AzureIoTClient 3:40f482ed0be8 725 result = 0;
AzureIoTClient 3:40f482ed0be8 726 }
AzureIoTClient 3:40f482ed0be8 727 }
AzureIoTClient 3:40f482ed0be8 728 }
AzureIoTClient 2:9db4da50abaa 729
AzureIoTClient 3:40f482ed0be8 730 if (transportState->connected)
AzureIoTClient 3:40f482ed0be8 731 {
AzureIoTClient 3:40f482ed0be8 732 // We are connected and not being closed, so does SAS need to reconnect?
AzureIoTClient 3:40f482ed0be8 733 uint64_t current_time;
AzureIoTClient 3:40f482ed0be8 734 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_time);
AzureIoTClient 3:40f482ed0be8 735 if ((current_time - transportState->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 3:40f482ed0be8 736 {
AzureIoTClient 3:40f482ed0be8 737 (void)mqtt_client_disconnect(transportState->mqttClient);
AzureIoTClient 3:40f482ed0be8 738 transportState->subscribed = false;
AzureIoTClient 3:40f482ed0be8 739 transportState->connected = false;
AzureIoTClient 3:40f482ed0be8 740 transportState->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 3:40f482ed0be8 741 }
AzureIoTClient 3:40f482ed0be8 742 }
AzureIoTClient 3:40f482ed0be8 743 }
AzureIoTClient 3:40f482ed0be8 744 return result;
Azure.IoT Build 0:5e72a75c31b8 745 }
Azure.IoT Build 0:5e72a75c31b8 746
Azure.IoT Build 0:5e72a75c31b8 747 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
Azure.IoT Build 0:5e72a75c31b8 748 {
AzureIoTClient 3:40f482ed0be8 749 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 750
AzureIoTClient 3:40f482ed0be8 751 size_t len = strlen(upperConfig->iotHubName)+strlen(upperConfig->iotHubSuffix)+strlen(upperConfig->deviceId)+strlen(CLIENT_DEVICE_TYPE_PREFIX)+strlen(IOTHUB_SDK_VERSION);
AzureIoTClient 3:40f482ed0be8 752 char* eventTopic = malloc(len + BUILD_CONFIG_USERNAME + 1);
AzureIoTClient 3:40f482ed0be8 753 if (eventTopic == NULL)
AzureIoTClient 3:40f482ed0be8 754 {
AzureIoTClient 3:40f482ed0be8 755 result = NULL;
AzureIoTClient 3:40f482ed0be8 756 }
AzureIoTClient 3:40f482ed0be8 757 else
AzureIoTClient 3:40f482ed0be8 758 {
AzureIoTClient 3:40f482ed0be8 759 (void)sprintf(eventTopic, "%s.%s/%s/DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
AzureIoTClient 3:40f482ed0be8 760 result = STRING_construct(eventTopic);
AzureIoTClient 3:40f482ed0be8 761 free(eventTopic);
AzureIoTClient 3:40f482ed0be8 762 }
AzureIoTClient 3:40f482ed0be8 763 return result;
Azure.IoT Build 0:5e72a75c31b8 764 }
Azure.IoT Build 0:5e72a75c31b8 765
Azure.IoT Build 0:5e72a75c31b8 766 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 767 {
AzureIoTClient 3:40f482ed0be8 768 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 3:40f482ed0be8 769 if (state == NULL)
AzureIoTClient 3:40f482ed0be8 770 {
AzureIoTClient 3:40f482ed0be8 771 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 3:40f482ed0be8 772 }
AzureIoTClient 3:40f482ed0be8 773 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 3:40f482ed0be8 774 {
AzureIoTClient 3:40f482ed0be8 775 free(state);
AzureIoTClient 3:40f482ed0be8 776 state = NULL;
AzureIoTClient 3:40f482ed0be8 777 }
Azure.IoT Build 0:5e72a75c31b8 778 else
Azure.IoT Build 0:5e72a75c31b8 779 {
AzureIoTClient 3:40f482ed0be8 780 state->device_key = NULL;
AzureIoTClient 3:40f482ed0be8 781 state->sasTokenSr = NULL;
AzureIoTClient 3:40f482ed0be8 782
AzureIoTClient 3:40f482ed0be8 783 if ((upperConfig->deviceKey != NULL) && ((state->device_key = STRING_construct(upperConfig->deviceKey)) == NULL))
AzureIoTClient 3:40f482ed0be8 784 {
AzureIoTClient 3:40f482ed0be8 785 LogError("Could not create device key for MQTT");
AzureIoTClient 3:40f482ed0be8 786 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 787 free(state);
AzureIoTClient 3:40f482ed0be8 788 state = NULL;
AzureIoTClient 3:40f482ed0be8 789 }
AzureIoTClient 3:40f482ed0be8 790 else if ((upperConfig->deviceSasToken != NULL) && ((state->sasTokenSr = STRING_construct(upperConfig->deviceSasToken)) == NULL))
AzureIoTClient 3:40f482ed0be8 791 {
AzureIoTClient 3:40f482ed0be8 792 LogError("Could not create Sas Token Sr String");
AzureIoTClient 3:40f482ed0be8 793 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 794 STRING_delete(state->device_key);
AzureIoTClient 3:40f482ed0be8 795 free(state);
AzureIoTClient 3:40f482ed0be8 796 state = NULL;
AzureIoTClient 3:40f482ed0be8 797 }
AzureIoTClient 3:40f482ed0be8 798 else if ((upperConfig->deviceSasToken == NULL) && ((state->sasTokenSr = ConstructSasToken(upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL))
Azure.IoT Build 0:5e72a75c31b8 799 {
AzureIoTClient 3:40f482ed0be8 800 LogError("Could not create Sas Token Sr String.");
AzureIoTClient 3:40f482ed0be8 801 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 802 STRING_delete(state->device_key);
AzureIoTClient 3:40f482ed0be8 803 free(state);
AzureIoTClient 3:40f482ed0be8 804 state = NULL;
AzureIoTClient 3:40f482ed0be8 805 }
AzureIoTClient 3:40f482ed0be8 806 else if ((state->mqttEventTopic = ConstructEventTopic(upperConfig->deviceId)) == NULL)
AzureIoTClient 3:40f482ed0be8 807 {
AzureIoTClient 3:40f482ed0be8 808 LogError("Could not create mqttEventTopic for MQTT");
AzureIoTClient 3:40f482ed0be8 809 STRING_delete(state->sasTokenSr);
AzureIoTClient 3:40f482ed0be8 810 STRING_delete(state->device_key);
AzureIoTClient 3:40f482ed0be8 811 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 812 free(state);
AzureIoTClient 3:40f482ed0be8 813 state = NULL;
AzureIoTClient 3:40f482ed0be8 814 }
AzureIoTClient 3:40f482ed0be8 815 else if ((state->mqttMessageTopic = ConstructMessageTopic(upperConfig->deviceId)) == NULL)
AzureIoTClient 3:40f482ed0be8 816 {
AzureIoTClient 3:40f482ed0be8 817 LogError("Could not create mqttMessageTopic for MQTT");
Azure.IoT Build 0:5e72a75c31b8 818 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 819 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 820 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 821 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 822 free(state);
Azure.IoT Build 0:5e72a75c31b8 823 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 824 }
Azure.IoT Build 0:5e72a75c31b8 825 else
Azure.IoT Build 0:5e72a75c31b8 826 {
AzureIoTClient 3:40f482ed0be8 827 state->mqttClient = mqtt_client_init(MqttRecvCallback, MqttOpCompleteCallback, state, defaultPrintLogFunction);
AzureIoTClient 3:40f482ed0be8 828 if (state->mqttClient == NULL)
Azure.IoT Build 0:5e72a75c31b8 829 {
Azure.IoT Build 0:5e72a75c31b8 830 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 831 STRING_delete(state->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 832 STRING_delete(state->sasTokenSr);
Azure.IoT Build 0:5e72a75c31b8 833 STRING_delete(state->device_key);
Azure.IoT Build 0:5e72a75c31b8 834 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 835 free(state);
Azure.IoT Build 0:5e72a75c31b8 836 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 837 }
Azure.IoT Build 0:5e72a75c31b8 838 else
Azure.IoT Build 0:5e72a75c31b8 839 {
AzureIoTClient 3:40f482ed0be8 840 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [The hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 3:40f482ed0be8 841 // TODO: need to strip the ssl or http or tls
AzureIoTClient 3:40f482ed0be8 842 char tempAddress[DEFAULT_TEMP_STRING_LEN];
AzureIoTClient 3:40f482ed0be8 843 (void)snprintf(tempAddress, DEFAULT_TEMP_STRING_LEN, "%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 3:40f482ed0be8 844 if ((state->hostAddress = STRING_construct(tempAddress)) == NULL)
AzureIoTClient 3:40f482ed0be8 845 {
AzureIoTClient 3:40f482ed0be8 846 STRING_delete(state->mqttEventTopic);
AzureIoTClient 3:40f482ed0be8 847 STRING_delete(state->mqttMessageTopic);
AzureIoTClient 3:40f482ed0be8 848 STRING_delete(state->sasTokenSr);
AzureIoTClient 3:40f482ed0be8 849 STRING_delete(state->device_key);
AzureIoTClient 3:40f482ed0be8 850 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 851 free(state);
AzureIoTClient 3:40f482ed0be8 852 state = NULL;
AzureIoTClient 3:40f482ed0be8 853 }
AzureIoTClient 3:40f482ed0be8 854 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 3:40f482ed0be8 855 {
AzureIoTClient 3:40f482ed0be8 856 STRING_delete(state->hostAddress);
AzureIoTClient 3:40f482ed0be8 857 STRING_delete(state->mqttEventTopic);
AzureIoTClient 3:40f482ed0be8 858 STRING_delete(state->mqttMessageTopic);
AzureIoTClient 3:40f482ed0be8 859 STRING_delete(state->sasTokenSr);
AzureIoTClient 3:40f482ed0be8 860 STRING_delete(state->device_key);
AzureIoTClient 3:40f482ed0be8 861 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 862 free(state);
AzureIoTClient 3:40f482ed0be8 863 state = NULL;
AzureIoTClient 3:40f482ed0be8 864 }
AzureIoTClient 3:40f482ed0be8 865 else
AzureIoTClient 3:40f482ed0be8 866 {
AzureIoTClient 3:40f482ed0be8 867 /* 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.] */
AzureIoTClient 3:40f482ed0be8 868 DList_InitializeListHead(&(state->waitingForAck));
AzureIoTClient 3:40f482ed0be8 869 state->sasTokenFromUser = (upperConfig->deviceSasToken == NULL) ? false : true;
AzureIoTClient 3:40f482ed0be8 870 state->destroyCalled = false;
AzureIoTClient 3:40f482ed0be8 871 state->isRegistered = false;
AzureIoTClient 3:40f482ed0be8 872 state->subscribed = false;
AzureIoTClient 3:40f482ed0be8 873 state->connected = false;
AzureIoTClient 3:40f482ed0be8 874 state->receiveMessages = false;
AzureIoTClient 3:40f482ed0be8 875 state->packetId = 1;
AzureIoTClient 3:40f482ed0be8 876 state->llClientHandle = NULL;
AzureIoTClient 3:40f482ed0be8 877 state->xioTransport = NULL;
AzureIoTClient 3:40f482ed0be8 878 state->portNum = DEFAULT_PORT_NUMBER;
AzureIoTClient 3:40f482ed0be8 879 state->waitingToSend = waitingToSend;
AzureIoTClient 3:40f482ed0be8 880 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 3:40f482ed0be8 881 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 3:40f482ed0be8 882 state->connectFailCount = 0;
AzureIoTClient 3:40f482ed0be8 883 state->connectTick = 0;
AzureIoTClient 3:40f482ed0be8 884 }
Azure.IoT Build 0:5e72a75c31b8 885 }
Azure.IoT Build 0:5e72a75c31b8 886 }
Azure.IoT Build 0:5e72a75c31b8 887 }
AzureIoTClient 3:40f482ed0be8 888 return state;
Azure.IoT Build 0:5e72a75c31b8 889 }
Azure.IoT Build 0:5e72a75c31b8 890
Azure.IoT Build 0:5e72a75c31b8 891 extern TRANSPORT_LL_HANDLE IoTHubTransportMqtt_Create(const IOTHUBTRANSPORT_CONFIG* config)
Azure.IoT Build 0:5e72a75c31b8 892 {
AzureIoTClient 3:40f482ed0be8 893 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 3:40f482ed0be8 894 size_t deviceIdSize;
AzureIoTClient 3:40f482ed0be8 895
AzureIoTClient 3:40f482ed0be8 896 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 897 if (config == NULL)
AzureIoTClient 3:40f482ed0be8 898 {
AzureIoTClient 3:40f482ed0be8 899 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 3:40f482ed0be8 900 result = NULL;
AzureIoTClient 3:40f482ed0be8 901 }
AzureIoTClient 3:40f482ed0be8 902 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 903 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 904 else if (config->upperConfig == NULL || config->upperConfig->protocol == NULL || config->upperConfig->deviceId == NULL || ((config->upperConfig->deviceKey == NULL) && (config->upperConfig->deviceSasToken == NULL)) ||
AzureIoTClient 3:40f482ed0be8 905 config->upperConfig->iotHubName == NULL || config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 3:40f482ed0be8 906 {
AzureIoTClient 3:40f482ed0be8 907 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 3:40f482ed0be8 908 result = NULL;
AzureIoTClient 3:40f482ed0be8 909 }
AzureIoTClient 3:40f482ed0be8 910 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 911 else if (config->waitingToSend == NULL)
AzureIoTClient 3:40f482ed0be8 912 {
AzureIoTClient 3:40f482ed0be8 913 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 3:40f482ed0be8 914 result = NULL;
AzureIoTClient 3:40f482ed0be8 915 }
AzureIoTClient 3:40f482ed0be8 916 /* 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.] */
AzureIoTClient 3:40f482ed0be8 917 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 3:40f482ed0be8 918 {
AzureIoTClient 3:40f482ed0be8 919 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 3:40f482ed0be8 920 result = NULL;
AzureIoTClient 3:40f482ed0be8 921 }
AzureIoTClient 3:40f482ed0be8 922 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 923 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 3:40f482ed0be8 924 {
AzureIoTClient 3:40f482ed0be8 925 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 3:40f482ed0be8 926 result = NULL;
AzureIoTClient 3:40f482ed0be8 927 }
AzureIoTClient 3:40f482ed0be8 928 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 929 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 3:40f482ed0be8 930 {
AzureIoTClient 3:40f482ed0be8 931 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 3:40f482ed0be8 932 result = NULL;
AzureIoTClient 3:40f482ed0be8 933 }
AzureIoTClient 3:40f482ed0be8 934 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 935 else if ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL))
Azure.IoT Build 0:5e72a75c31b8 936 {
AzureIoTClient 3:40f482ed0be8 937 LogError("Invalid Argument: cannot have both deviceKey and deviceSasToken defined");
Azure.IoT Build 0:5e72a75c31b8 938 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 939 }
Azure.IoT Build 0:5e72a75c31b8 940 /* 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.] */
AzureIoTClient 3:40f482ed0be8 941 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 3:40f482ed0be8 942 {
AzureIoTClient 3:40f482ed0be8 943 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 3:40f482ed0be8 944 result = NULL;
AzureIoTClient 3:40f482ed0be8 945 }
AzureIoTClient 3:40f482ed0be8 946 else
AzureIoTClient 3:40f482ed0be8 947 {
AzureIoTClient 3:40f482ed0be8 948 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
AzureIoTClient 3:40f482ed0be8 949 if (result != NULL)
AzureIoTClient 3:40f482ed0be8 950 {
AzureIoTClient 3:40f482ed0be8 951 g_msgTickCounter = tickcounter_create();
AzureIoTClient 3:40f482ed0be8 952 }
AzureIoTClient 3:40f482ed0be8 953 }
AzureIoTClient 3:40f482ed0be8 954 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 3:40f482ed0be8 955 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransportMqtt_Create shall return a non-NULL value.] */
AzureIoTClient 3:40f482ed0be8 956 return result;
Azure.IoT Build 0:5e72a75c31b8 957 }
Azure.IoT Build 0:5e72a75c31b8 958
Azure.IoT Build 0:5e72a75c31b8 959 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 960 {
AzureIoTClient 3:40f482ed0be8 961 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_013: [If the parameter subscribe is true then IoTHubTransportMqtt_Destroy shall call IoTHubTransportMqtt_Unsubscribe.] */
AzureIoTClient 3:40f482ed0be8 962 if (transportState->subscribed)
AzureIoTClient 3:40f482ed0be8 963 {
AzureIoTClient 3:40f482ed0be8 964 IoTHubTransportMqtt_Unsubscribe(transportState);
AzureIoTClient 3:40f482ed0be8 965 }
Azure.IoT Build 0:5e72a75c31b8 966
AzureIoTClient 3:40f482ed0be8 967 (void)mqtt_client_disconnect(transportState->mqttClient);
AzureIoTClient 3:40f482ed0be8 968 xio_destroy(transportState->xioTransport);
AzureIoTClient 3:40f482ed0be8 969 transportState->xioTransport = NULL;
Azure.IoT Build 0:5e72a75c31b8 970
AzureIoTClient 3:40f482ed0be8 971 transportState->connected = false;
AzureIoTClient 3:40f482ed0be8 972 transportState->currPacketState = DISCONNECT_TYPE;
Azure.IoT Build 0:5e72a75c31b8 973 }
Azure.IoT Build 0:5e72a75c31b8 974
Azure.IoT Build 0:5e72a75c31b8 975 void IoTHubTransportMqtt_Destroy(TRANSPORT_LL_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 976 {
AzureIoTClient 3:40f482ed0be8 977 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 3:40f482ed0be8 978 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 3:40f482ed0be8 979 if (transportState != NULL)
AzureIoTClient 3:40f482ed0be8 980 {
AzureIoTClient 3:40f482ed0be8 981 transportState->destroyCalled = true;
Azure.IoT Build 0:5e72a75c31b8 982
AzureIoTClient 3:40f482ed0be8 983 DisconnectFromClient(transportState);
Azure.IoT Build 0:5e72a75c31b8 984
AzureIoTClient 3:40f482ed0be8 985 //Empty the Waiting for Ack Messages.
AzureIoTClient 3:40f482ed0be8 986 while (!DList_IsListEmpty(&transportState->waitingForAck))
AzureIoTClient 3:40f482ed0be8 987 {
AzureIoTClient 3:40f482ed0be8 988 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
AzureIoTClient 3:40f482ed0be8 989 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 3:40f482ed0be8 990 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
AzureIoTClient 3:40f482ed0be8 991 free(mqttMsgEntry);
AzureIoTClient 3:40f482ed0be8 992 }
Azure.IoT Build 0:5e72a75c31b8 993
AzureIoTClient 3:40f482ed0be8 994 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
AzureIoTClient 3:40f482ed0be8 995 mqtt_client_deinit(transportState->mqttClient);
AzureIoTClient 3:40f482ed0be8 996 STRING_delete(transportState->mqttEventTopic);
AzureIoTClient 3:40f482ed0be8 997 STRING_delete(transportState->mqttMessageTopic);
AzureIoTClient 3:40f482ed0be8 998 STRING_delete(transportState->device_id);
AzureIoTClient 3:40f482ed0be8 999 STRING_delete(transportState->device_key);
AzureIoTClient 3:40f482ed0be8 1000 STRING_delete(transportState->sasTokenSr);
AzureIoTClient 3:40f482ed0be8 1001 STRING_delete(transportState->hostAddress);
AzureIoTClient 3:40f482ed0be8 1002 STRING_delete(transportState->configPassedThroughUsername);
AzureIoTClient 3:40f482ed0be8 1003 tickcounter_destroy(g_msgTickCounter);
AzureIoTClient 3:40f482ed0be8 1004 free(transportState);
AzureIoTClient 3:40f482ed0be8 1005 }
Azure.IoT Build 0:5e72a75c31b8 1006 }
Azure.IoT Build 0:5e72a75c31b8 1007
Azure.IoT Build 0:5e72a75c31b8 1008 int IoTHubTransportMqtt_Subscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 1009 {
AzureIoTClient 3:40f482ed0be8 1010 int result;
AzureIoTClient 3:40f482ed0be8 1011 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 3:40f482ed0be8 1012 if (transportState == NULL)
AzureIoTClient 3:40f482ed0be8 1013 {
AzureIoTClient 3:40f482ed0be8 1014 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
AzureIoTClient 3:40f482ed0be8 1015 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 3:40f482ed0be8 1016 result = __LINE__;
AzureIoTClient 3:40f482ed0be8 1017 }
AzureIoTClient 3:40f482ed0be8 1018 else
AzureIoTClient 3:40f482ed0be8 1019 {
AzureIoTClient 3:40f482ed0be8 1020 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1021 transportState->receiveMessages = true;
AzureIoTClient 3:40f482ed0be8 1022 /* 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.]*/
AzureIoTClient 3:40f482ed0be8 1023 if (transportState->currPacketState != CONNACK_TYPE &&
AzureIoTClient 3:40f482ed0be8 1024 transportState->currPacketState != CONNECT_TYPE &&
AzureIoTClient 3:40f482ed0be8 1025 transportState->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 3:40f482ed0be8 1026 transportState->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 3:40f482ed0be8 1027 {
AzureIoTClient 3:40f482ed0be8 1028 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 3:40f482ed0be8 1029 }
AzureIoTClient 3:40f482ed0be8 1030 result = 0;
AzureIoTClient 3:40f482ed0be8 1031 }
AzureIoTClient 3:40f482ed0be8 1032 return result;
Azure.IoT Build 0:5e72a75c31b8 1033 }
Azure.IoT Build 0:5e72a75c31b8 1034
Azure.IoT Build 0:5e72a75c31b8 1035 void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 1036 {
AzureIoTClient 3:40f482ed0be8 1037 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 3:40f482ed0be8 1038 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
AzureIoTClient 3:40f482ed0be8 1039 if (transportState != NULL && transportState->subscribed)
AzureIoTClient 3:40f482ed0be8 1040 {
AzureIoTClient 3:40f482ed0be8 1041 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
AzureIoTClient 3:40f482ed0be8 1042 const char* unsubscribe[] = { STRING_c_str(transportState->mqttMessageTopic) };
AzureIoTClient 3:40f482ed0be8 1043 (void)mqtt_client_unsubscribe(transportState->mqttClient, transportState->packetId++, unsubscribe, 1);
AzureIoTClient 3:40f482ed0be8 1044 transportState->subscribed = false;
AzureIoTClient 3:40f482ed0be8 1045 transportState->receiveMessages = false;
AzureIoTClient 3:40f482ed0be8 1046 }
AzureIoTClient 3:40f482ed0be8 1047 else
AzureIoTClient 3:40f482ed0be8 1048 {
AzureIoTClient 3:40f482ed0be8 1049 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 3:40f482ed0be8 1050 }
Azure.IoT Build 0:5e72a75c31b8 1051 }
Azure.IoT Build 0:5e72a75c31b8 1052
Azure.IoT Build 0:5e72a75c31b8 1053 extern void IoTHubTransportMqtt_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
Azure.IoT Build 0:5e72a75c31b8 1054 {
AzureIoTClient 3:40f482ed0be8 1055 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransportMqtt_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
AzureIoTClient 3:40f482ed0be8 1056 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 3:40f482ed0be8 1057 if (transportState != NULL && iotHubClientHandle != NULL)
AzureIoTClient 3:40f482ed0be8 1058 {
AzureIoTClient 3:40f482ed0be8 1059 transportState->llClientHandle = iotHubClientHandle;
Azure.IoT Build 0:5e72a75c31b8 1060
AzureIoTClient 3:40f482ed0be8 1061 if (InitializeConnection(transportState) != 0)
AzureIoTClient 3:40f482ed0be8 1062 {
AzureIoTClient 3:40f482ed0be8 1063 // Don't want to flood the logs with failures here
AzureIoTClient 3:40f482ed0be8 1064 }
AzureIoTClient 3:40f482ed0be8 1065 else
AzureIoTClient 3:40f482ed0be8 1066 {
AzureIoTClient 3:40f482ed0be8 1067 if (transportState->currPacketState == CONNACK_TYPE || transportState->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 3:40f482ed0be8 1068 {
AzureIoTClient 3:40f482ed0be8 1069 (void)SubscribeToMqttProtocol(transportState);
AzureIoTClient 3:40f482ed0be8 1070 }
AzureIoTClient 3:40f482ed0be8 1071 else if (transportState->currPacketState == SUBACK_TYPE)
AzureIoTClient 3:40f482ed0be8 1072 {
AzureIoTClient 3:40f482ed0be8 1073 // Publish can be called now
AzureIoTClient 3:40f482ed0be8 1074 transportState->currPacketState = PUBLISH_TYPE;
AzureIoTClient 3:40f482ed0be8 1075 }
AzureIoTClient 3:40f482ed0be8 1076 else if (transportState->currPacketState == PUBLISH_TYPE)
AzureIoTClient 3:40f482ed0be8 1077 {
AzureIoTClient 3:40f482ed0be8 1078 PDLIST_ENTRY currentListEntry = transportState->waitingForAck.Flink;
AzureIoTClient 3:40f482ed0be8 1079 while (currentListEntry != &transportState->waitingForAck)
AzureIoTClient 3:40f482ed0be8 1080 {
AzureIoTClient 3:40f482ed0be8 1081 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 3:40f482ed0be8 1082 DLIST_ENTRY nextListEntry;
AzureIoTClient 3:40f482ed0be8 1083 nextListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1084
AzureIoTClient 3:40f482ed0be8 1085 uint64_t current_ms;
AzureIoTClient 3:40f482ed0be8 1086 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_ms);
AzureIoTClient 3:40f482ed0be8 1087 /* 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.]*/
AzureIoTClient 3:40f482ed0be8 1088 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 3:40f482ed0be8 1089 {
AzureIoTClient 3:40f482ed0be8 1090 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransportMqtt_DoWork has resent the message two times then it shall fail the message] */
AzureIoTClient 3:40f482ed0be8 1091 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 3:40f482ed0be8 1092 {
AzureIoTClient 3:40f482ed0be8 1093 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 3:40f482ed0be8 1094 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
AzureIoTClient 3:40f482ed0be8 1095 free(mqttMsgEntry);
AzureIoTClient 3:40f482ed0be8 1096 }
AzureIoTClient 3:40f482ed0be8 1097 else
AzureIoTClient 3:40f482ed0be8 1098 {
AzureIoTClient 3:40f482ed0be8 1099 size_t messageLength;
AzureIoTClient 3:40f482ed0be8 1100 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 3:40f482ed0be8 1101 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 3:40f482ed0be8 1102 {
AzureIoTClient 3:40f482ed0be8 1103 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 3:40f482ed0be8 1104 }
AzureIoTClient 3:40f482ed0be8 1105 else
AzureIoTClient 3:40f482ed0be8 1106 {
AzureIoTClient 3:40f482ed0be8 1107 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 3:40f482ed0be8 1108 {
AzureIoTClient 3:40f482ed0be8 1109 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 3:40f482ed0be8 1110 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
AzureIoTClient 3:40f482ed0be8 1111 free(mqttMsgEntry);
AzureIoTClient 3:40f482ed0be8 1112 }
AzureIoTClient 3:40f482ed0be8 1113 }
AzureIoTClient 3:40f482ed0be8 1114 }
AzureIoTClient 3:40f482ed0be8 1115 }
AzureIoTClient 3:40f482ed0be8 1116 currentListEntry = nextListEntry.Flink;
AzureIoTClient 3:40f482ed0be8 1117 }
Azure.IoT Build 0:5e72a75c31b8 1118
AzureIoTClient 3:40f482ed0be8 1119 currentListEntry = transportState->waitingToSend->Flink;
AzureIoTClient 3:40f482ed0be8 1120 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
AzureIoTClient 3:40f482ed0be8 1121 while (currentListEntry != transportState->waitingToSend)
AzureIoTClient 3:40f482ed0be8 1122 {
AzureIoTClient 3:40f482ed0be8 1123 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 3:40f482ed0be8 1124 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 3:40f482ed0be8 1125 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1126
AzureIoTClient 3:40f482ed0be8 1127 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
AzureIoTClient 3:40f482ed0be8 1128 size_t messageLength;
AzureIoTClient 3:40f482ed0be8 1129 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 3:40f482ed0be8 1130 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 3:40f482ed0be8 1131 {
AzureIoTClient 3:40f482ed0be8 1132 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 3:40f482ed0be8 1133 }
AzureIoTClient 3:40f482ed0be8 1134 else
AzureIoTClient 3:40f482ed0be8 1135 {
AzureIoTClient 3:40f482ed0be8 1136 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1137 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 3:40f482ed0be8 1138 if (mqttMsgEntry == NULL)
AzureIoTClient 3:40f482ed0be8 1139 {
AzureIoTClient 3:40f482ed0be8 1140 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 3:40f482ed0be8 1141 }
AzureIoTClient 3:40f482ed0be8 1142 else
AzureIoTClient 3:40f482ed0be8 1143 {
AzureIoTClient 3:40f482ed0be8 1144 mqttMsgEntry->retryCount = 0;
AzureIoTClient 3:40f482ed0be8 1145 mqttMsgEntry->msgPacketId = transportState->packetId;
AzureIoTClient 3:40f482ed0be8 1146 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
Azure.IoT Build 0:5e72a75c31b8 1147
AzureIoTClient 3:40f482ed0be8 1148 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 3:40f482ed0be8 1149 {
AzureIoTClient 3:40f482ed0be8 1150 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 3:40f482ed0be8 1151 sendMsgComplete(iothubMsgList, transportState, IOTHUB_BATCHSTATE_FAILED);
AzureIoTClient 3:40f482ed0be8 1152 free(mqttMsgEntry);
AzureIoTClient 3:40f482ed0be8 1153 }
AzureIoTClient 3:40f482ed0be8 1154 else
AzureIoTClient 3:40f482ed0be8 1155 {
AzureIoTClient 3:40f482ed0be8 1156 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 3:40f482ed0be8 1157 DList_InsertTailList(&(transportState->waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 3:40f482ed0be8 1158 }
AzureIoTClient 3:40f482ed0be8 1159 }
AzureIoTClient 3:40f482ed0be8 1160 }
AzureIoTClient 3:40f482ed0be8 1161 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 3:40f482ed0be8 1162 }
AzureIoTClient 3:40f482ed0be8 1163 }
AzureIoTClient 3:40f482ed0be8 1164 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransportMqtt_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
AzureIoTClient 3:40f482ed0be8 1165 mqtt_client_dowork(transportState->mqttClient);
AzureIoTClient 3:40f482ed0be8 1166 }
AzureIoTClient 3:40f482ed0be8 1167 }
Azure.IoT Build 0:5e72a75c31b8 1168 }
Azure.IoT Build 0:5e72a75c31b8 1169
Azure.IoT Build 0:5e72a75c31b8 1170 IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
Azure.IoT Build 0:5e72a75c31b8 1171 {
AzureIoTClient 3:40f482ed0be8 1172 IOTHUB_CLIENT_RESULT result;
Azure.IoT Build 0:5e72a75c31b8 1173
AzureIoTClient 3:40f482ed0be8 1174 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 3:40f482ed0be8 1175 {
AzureIoTClient 3:40f482ed0be8 1176 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
AzureIoTClient 3:40f482ed0be8 1177 LogError("invalid arument.");
AzureIoTClient 3:40f482ed0be8 1178 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 3:40f482ed0be8 1179 }
AzureIoTClient 3:40f482ed0be8 1180 else
AzureIoTClient 3:40f482ed0be8 1181 {
AzureIoTClient 3:40f482ed0be8 1182 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 3:40f482ed0be8 1183 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->waitingForAck)))
AzureIoTClient 3:40f482ed0be8 1184 {
AzureIoTClient 3:40f482ed0be8 1185 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1186 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 3:40f482ed0be8 1187 }
AzureIoTClient 3:40f482ed0be8 1188 else
AzureIoTClient 3:40f482ed0be8 1189 {
AzureIoTClient 3:40f482ed0be8 1190 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1191 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 3:40f482ed0be8 1192 }
AzureIoTClient 3:40f482ed0be8 1193 result = IOTHUB_CLIENT_OK;
AzureIoTClient 3:40f482ed0be8 1194 }
AzureIoTClient 3:40f482ed0be8 1195 return result;
Azure.IoT Build 0:5e72a75c31b8 1196 }
Azure.IoT Build 0:5e72a75c31b8 1197
Azure.IoT Build 0:5e72a75c31b8 1198 IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
Azure.IoT Build 0:5e72a75c31b8 1199 {
AzureIoTClient 3:40f482ed0be8 1200 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
AzureIoTClient 3:40f482ed0be8 1201 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 3:40f482ed0be8 1202 if (
AzureIoTClient 3:40f482ed0be8 1203 (handle == NULL) ||
AzureIoTClient 3:40f482ed0be8 1204 (option == NULL) ||
AzureIoTClient 3:40f482ed0be8 1205 (value == NULL)
AzureIoTClient 3:40f482ed0be8 1206 )
AzureIoTClient 3:40f482ed0be8 1207 {
AzureIoTClient 3:40f482ed0be8 1208 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 3:40f482ed0be8 1209 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 3:40f482ed0be8 1210 }
AzureIoTClient 3:40f482ed0be8 1211 else
AzureIoTClient 3:40f482ed0be8 1212 {
AzureIoTClient 3:40f482ed0be8 1213 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 3:40f482ed0be8 1214 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1215 if (strcmp("logtrace", option) == 0)
AzureIoTClient 3:40f482ed0be8 1216 {
AzureIoTClient 3:40f482ed0be8 1217 bool* traceVal = (bool*)value;
AzureIoTClient 3:40f482ed0be8 1218 mqtt_client_set_trace(transportState->mqttClient, *traceVal, *traceVal);
AzureIoTClient 3:40f482ed0be8 1219 result = IOTHUB_CLIENT_OK;
AzureIoTClient 3:40f482ed0be8 1220 }
AzureIoTClient 3:40f482ed0be8 1221 else if (strcmp("keepalive", option) == 0)
AzureIoTClient 3:40f482ed0be8 1222 {
AzureIoTClient 3:40f482ed0be8 1223 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1224 int* keepAliveOption = (int*)value;
AzureIoTClient 3:40f482ed0be8 1225 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1226 if (*keepAliveOption != transportState->keepAliveValue)
AzureIoTClient 3:40f482ed0be8 1227 {
AzureIoTClient 3:40f482ed0be8 1228 transportState->keepAliveValue = *keepAliveOption;
AzureIoTClient 3:40f482ed0be8 1229 if (transportState->connected)
AzureIoTClient 3:40f482ed0be8 1230 {
AzureIoTClient 3:40f482ed0be8 1231 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1232 DisconnectFromClient(transportState);
AzureIoTClient 3:40f482ed0be8 1233 }
AzureIoTClient 3:40f482ed0be8 1234 }
AzureIoTClient 3:40f482ed0be8 1235 result = IOTHUB_CLIENT_OK;
AzureIoTClient 3:40f482ed0be8 1236 }
AzureIoTClient 3:40f482ed0be8 1237 else
AzureIoTClient 3:40f482ed0be8 1238 {
AzureIoTClient 3:40f482ed0be8 1239 /* 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.] */
AzureIoTClient 3:40f482ed0be8 1240 if (GetTransportProviderIfNecessary(transportState) == 0)
AzureIoTClient 3:40f482ed0be8 1241 {
AzureIoTClient 3:40f482ed0be8 1242 if (xio_setoption(transportState->xioTransport, option, value) == 0)
AzureIoTClient 3:40f482ed0be8 1243 {
AzureIoTClient 3:40f482ed0be8 1244 result = IOTHUB_CLIENT_OK;
AzureIoTClient 3:40f482ed0be8 1245 }
AzureIoTClient 3:40f482ed0be8 1246 else
AzureIoTClient 3:40f482ed0be8 1247 {
AzureIoTClient 3:40f482ed0be8 1248 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 3:40f482ed0be8 1249 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 3:40f482ed0be8 1250 }
AzureIoTClient 3:40f482ed0be8 1251 }
AzureIoTClient 3:40f482ed0be8 1252 else
AzureIoTClient 3:40f482ed0be8 1253 {
AzureIoTClient 3:40f482ed0be8 1254 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 3:40f482ed0be8 1255 }
AzureIoTClient 3:40f482ed0be8 1256 }
AzureIoTClient 3:40f482ed0be8 1257 }
AzureIoTClient 3:40f482ed0be8 1258 return result;
Azure.IoT Build 0:5e72a75c31b8 1259 }
Azure.IoT Build 0:5e72a75c31b8 1260
AzureIoTClient 3:40f482ed0be8 1261 IOTHUB_DEVICE_HANDLE IoTHubTransportMqtt_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 1262 {
AzureIoTClient 3:40f482ed0be8 1263 IOTHUB_DEVICE_HANDLE result;
AzureIoTClient 3:40f482ed0be8 1264 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransportMqtt_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 3:40f482ed0be8 1265 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransportMqtt_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 3:40f482ed0be8 1266 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 3:40f482ed0be8 1267 {
AzureIoTClient 3:40f482ed0be8 1268 LogError("IoTHubTransportMqtt_Register: handle, device or waitingToSend is NULL.");
Azure.IoT Build 0:5e72a75c31b8 1269 result = NULL;
AzureIoTClient 3:40f482ed0be8 1270 }
AzureIoTClient 3:40f482ed0be8 1271 else
AzureIoTClient 3:40f482ed0be8 1272 {
AzureIoTClient 3:40f482ed0be8 1273 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
Azure.IoT Build 0:5e72a75c31b8 1274
AzureIoTClient 3:40f482ed0be8 1275 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransportMqtt_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
AzureIoTClient 3:40f482ed0be8 1276 if (device->deviceId == NULL)
AzureIoTClient 3:40f482ed0be8 1277 {
AzureIoTClient 3:40f482ed0be8 1278 LogError("IoTHubTransportMqtt_Register: deviceId is NULL.");
AzureIoTClient 3:40f482ed0be8 1279 result = NULL;
AzureIoTClient 3:40f482ed0be8 1280 }
AzureIoTClient 3:40f482ed0be8 1281 else if ((device->deviceKey == NULL) && (device->deviceSasToken == NULL))
AzureIoTClient 3:40f482ed0be8 1282 {
AzureIoTClient 3:40f482ed0be8 1283 LogError("IoTHubTransportMqtt_Register: deviceKey and deviceSasToken are NULL.");
AzureIoTClient 3:40f482ed0be8 1284 result = NULL;
AzureIoTClient 3:40f482ed0be8 1285 }
AzureIoTClient 3:40f482ed0be8 1286 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransportMqtt_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 3:40f482ed0be8 1287 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 3:40f482ed0be8 1288 {
AzureIoTClient 3:40f482ed0be8 1289 LogError("IoTHubTransportMqtt_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
Azure.IoT Build 0:5e72a75c31b8 1290 result = NULL;
AzureIoTClient 3:40f482ed0be8 1291 }
AzureIoTClient 3:40f482ed0be8 1292 else
AzureIoTClient 3:40f482ed0be8 1293 {
AzureIoTClient 3:40f482ed0be8 1294 // 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.]
AzureIoTClient 3:40f482ed0be8 1295 if (strcmp(STRING_c_str(transportState->device_id), device->deviceId) != 0)
AzureIoTClient 3:40f482ed0be8 1296 {
AzureIoTClient 3:40f482ed0be8 1297 LogError("IoTHubTransportMqtt_Register: deviceId does not match.");
AzureIoTClient 3:40f482ed0be8 1298 result = NULL;
AzureIoTClient 3:40f482ed0be8 1299 }
AzureIoTClient 3:40f482ed0be8 1300 else if ((device->deviceKey != NULL) && (strcmp(STRING_c_str(transportState->device_key), device->deviceKey) != 0))
AzureIoTClient 3:40f482ed0be8 1301 {
AzureIoTClient 3:40f482ed0be8 1302 LogError("IoTHubTransportMqtt_Register: deviceKey does not match.");
Azure.IoT Build 0:5e72a75c31b8 1303 result = NULL;
AzureIoTClient 3:40f482ed0be8 1304 }
AzureIoTClient 3:40f482ed0be8 1305 else
AzureIoTClient 3:40f482ed0be8 1306 {
AzureIoTClient 3:40f482ed0be8 1307 if (transportState->isRegistered == true)
AzureIoTClient 3:40f482ed0be8 1308 {
AzureIoTClient 3:40f482ed0be8 1309 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 3:40f482ed0be8 1310 result = NULL;
AzureIoTClient 3:40f482ed0be8 1311 }
AzureIoTClient 3:40f482ed0be8 1312 else
AzureIoTClient 3:40f482ed0be8 1313 {
AzureIoTClient 3:40f482ed0be8 1314 transportState->isRegistered = true;
AzureIoTClient 3:40f482ed0be8 1315 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransportMqtt_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
AzureIoTClient 3:40f482ed0be8 1316 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 3:40f482ed0be8 1317 }
AzureIoTClient 3:40f482ed0be8 1318 }
AzureIoTClient 3:40f482ed0be8 1319 }
AzureIoTClient 3:40f482ed0be8 1320 }
Azure.IoT Build 0:5e72a75c31b8 1321
AzureIoTClient 3:40f482ed0be8 1322 return result;
Azure.IoT Build 0:5e72a75c31b8 1323 }
Azure.IoT Build 0:5e72a75c31b8 1324
Azure.IoT Build 0:5e72a75c31b8 1325 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ IoTHubTransportMqtt_Unregister shall return. ]
Azure.IoT Build 0:5e72a75c31b8 1326 void IoTHubTransportMqtt_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
Azure.IoT Build 0:5e72a75c31b8 1327 {
AzureIoTClient 3:40f482ed0be8 1328 if (deviceHandle != NULL)
AzureIoTClient 3:40f482ed0be8 1329 {
AzureIoTClient 3:40f482ed0be8 1330 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
Azure.IoT Build 0:5e72a75c31b8 1331
AzureIoTClient 3:40f482ed0be8 1332 transportState->isRegistered = false;
AzureIoTClient 3:40f482ed0be8 1333 }
Azure.IoT Build 0:5e72a75c31b8 1334 }
Azure.IoT Build 0:5e72a75c31b8 1335
Azure.IoT Build 0:5e72a75c31b8 1336 TRANSPORT_PROVIDER myfunc = {
AzureIoTClient 3:40f482ed0be8 1337 IoTHubTransportMqtt_SetOption,
AzureIoTClient 3:40f482ed0be8 1338 IoTHubTransportMqtt_Create,
AzureIoTClient 3:40f482ed0be8 1339 IoTHubTransportMqtt_Destroy,
AzureIoTClient 3:40f482ed0be8 1340 IoTHubTransportMqtt_Register,
AzureIoTClient 3:40f482ed0be8 1341 IoTHubTransportMqtt_Unregister,
AzureIoTClient 3:40f482ed0be8 1342 IoTHubTransportMqtt_Subscribe,
AzureIoTClient 3:40f482ed0be8 1343 IoTHubTransportMqtt_Unsubscribe,
AzureIoTClient 3:40f482ed0be8 1344 IoTHubTransportMqtt_DoWork,
AzureIoTClient 3:40f482ed0be8 1345 IoTHubTransportMqtt_GetSendStatus
Azure.IoT Build 0:5e72a75c31b8 1346 };
Azure.IoT Build 0:5e72a75c31b8 1347
Azure.IoT Build 0:5e72a75c31b8 1348 /* 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 1349 IoTHubTransport_Destroy = IoTHubTransportMqtt_Destroy
Azure.IoT Build 0:5e72a75c31b8 1350 IoTHubTransport_Subscribe = IoTHubTransportMqtt_Subscribe
Azure.IoT Build 0:5e72a75c31b8 1351 IoTHubTransport_Unsubscribe = IoTHubTransportMqtt_Unsubscribe
Azure.IoT Build 0:5e72a75c31b8 1352 IoTHubTransport_DoWork = IoTHubTransportMqtt_DoWork
Azure.IoT Build 0:5e72a75c31b8 1353 IoTHubTransport_SetOption = IoTHubTransportMqtt_SetOption] */
Azure.IoT Build 0:5e72a75c31b8 1354 extern const void* MQTT_Protocol(void)
Azure.IoT Build 0:5e72a75c31b8 1355 {
AzureIoTClient 3:40f482ed0be8 1356 return &myfunc;
Azure.IoT Build 0:5e72a75c31b8 1357 }