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@7:7fdd306e6224, 2016-07-29 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jul 29 15:53:03 2016 -0700
Revision:
7:7fdd306e6224
Parent:
6:16875b609849
Child:
8:418a3b812584
1.0.10

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 5:73603e7a6542 10 #include "azure_c_shared_utility/xlogging.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
AzureIoTClient 6:16875b609849 31 #include <limits.h>
AzureIoTClient 6:16875b609849 32
Azure.IoT Build 0:5e72a75c31b8 33 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 2:9db4da50abaa 34 #define SAS_REFRESH_MULTIPLIER .8
Azure.IoT Build 0:5e72a75c31b8 35 #define EPOCH_TIME_T_VALUE 0
Azure.IoT Build 1:f2e563755d91 36 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
Azure.IoT Build 0:5e72a75c31b8 37 #define DEFAULT_PORT_NUMBER 8883
Azure.IoT Build 0:5e72a75c31b8 38 #define DEFAULT_TEMP_STRING_LEN 256
Azure.IoT Build 0:5e72a75c31b8 39 #define BUILD_CONFIG_USERNAME 24
Azure.IoT Build 0:5e72a75c31b8 40 #define EVENT_TOPIC_DEFAULT_LEN 27
Azure.IoT Build 0:5e72a75c31b8 41 #define SAS_TOKEN_DEFAULT_LEN 10
Azure.IoT Build 0:5e72a75c31b8 42 #define RESEND_TIMEOUT_VALUE_MIN 1*60
Azure.IoT Build 0:5e72a75c31b8 43 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 2:9db4da50abaa 44 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 2:9db4da50abaa 45 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 2:9db4da50abaa 46
AzureIoTClient 2:9db4da50abaa 47 static const char* DEVICE_MSG_TOPIC = "devices/%s/messages/devicebound/#";
AzureIoTClient 2:9db4da50abaa 48 static const char* DEVICE_DEVICE_TOPIC = "devices/%s/messages/events/";
AzureIoTClient 2:9db4da50abaa 49 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 2:9db4da50abaa 50
AzureIoTClient 2:9db4da50abaa 51 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 2:9db4da50abaa 52 {
AzureIoTClient 4:e472f5ce3473 53 const char* propName;
AzureIoTClient 4:e472f5ce3473 54 size_t propLength;
AzureIoTClient 2:9db4da50abaa 55 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 2:9db4da50abaa 56
AzureIoTClient 2:9db4da50abaa 57 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 4:e472f5ce3473 58 { "%24.exp", 7 },
AzureIoTClient 4:e472f5ce3473 59 { "%24.mid", 7 },
AzureIoTClient 4:e472f5ce3473 60 { "%24.uid", 7 },
AzureIoTClient 4:e472f5ce3473 61 { "%24.to", 6 },
AzureIoTClient 4:e472f5ce3473 62 { "%24.cid", 7 },
AzureIoTClient 4:e472f5ce3473 63 { "devices/", 8 },
AzureIoTClient 4:e472f5ce3473 64 { "iothub-operation", 16 },
AzureIoTClient 4:e472f5ce3473 65 { "iothub-ack", 10 }
AzureIoTClient 2:9db4da50abaa 66 };
Azure.IoT Build 0:5e72a75c31b8 67
AzureIoTClient 4:e472f5ce3473 68 static TICK_COUNTER_HANDLE g_msgTickCounter;
Azure.IoT Build 0:5e72a75c31b8 69
AzureIoTClient 7:7fdd306e6224 70 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 7:7fdd306e6224 71 {
AzureIoTClient 7:7fdd306e6224 72 CREDENTIAL_NOT_BUILD,
AzureIoTClient 7:7fdd306e6224 73 X509,
AzureIoTClient 7:7fdd306e6224 74 SAS_TOKEN_FROM_USER,
AzureIoTClient 7:7fdd306e6224 75 DEVICE_KEY,
AzureIoTClient 7:7fdd306e6224 76 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 7:7fdd306e6224 77
AzureIoTClient 7:7fdd306e6224 78 typedef struct MQTT_TRANSPORT_CREDENTIALS_TAG
AzureIoTClient 7:7fdd306e6224 79 {
AzureIoTClient 7:7fdd306e6224 80 MQTT_TRANSPORT_CREDENTIAL_TYPE credential_type;
AzureIoTClient 7:7fdd306e6224 81 union
AzureIoTClient 7:7fdd306e6224 82 {
AzureIoTClient 7:7fdd306e6224 83 // Key associated to the device to be used.
AzureIoTClient 7:7fdd306e6224 84 STRING_HANDLE deviceKey;
AzureIoTClient 7:7fdd306e6224 85
AzureIoTClient 7:7fdd306e6224 86 // SAS associated to the device to be used.
AzureIoTClient 7:7fdd306e6224 87 STRING_HANDLE deviceSasToken;
AzureIoTClient 7:7fdd306e6224 88
AzureIoTClient 7:7fdd306e6224 89 } CREDENTIAL_VALUE;
AzureIoTClient 7:7fdd306e6224 90 } MQTT_TRANSPORT_CREDENTIALS;
AzureIoTClient 7:7fdd306e6224 91
Azure.IoT Build 0:5e72a75c31b8 92 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
Azure.IoT Build 0:5e72a75c31b8 93 {
AzureIoTClient 4:e472f5ce3473 94 STRING_HANDLE device_id;
AzureIoTClient 7:7fdd306e6224 95 STRING_HANDLE devicesPath;
AzureIoTClient 7:7fdd306e6224 96
AzureIoTClient 7:7fdd306e6224 97 MQTT_TRANSPORT_CREDENTIALS transport_creds;
AzureIoTClient 7:7fdd306e6224 98
AzureIoTClient 4:e472f5ce3473 99 STRING_HANDLE mqttEventTopic;
AzureIoTClient 4:e472f5ce3473 100 STRING_HANDLE mqttMessageTopic;
AzureIoTClient 4:e472f5ce3473 101 STRING_HANDLE hostAddress;
AzureIoTClient 4:e472f5ce3473 102 // 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 4:e472f5ce3473 103 // passed through the username portion of the connection frame.
AzureIoTClient 4:e472f5ce3473 104 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 4:e472f5ce3473 105 // The first segment can be a maximum 256 characters.
AzureIoTClient 4:e472f5ce3473 106 // The second segment can be a maximum 128 characters.
AzureIoTClient 4:e472f5ce3473 107 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 4:e472f5ce3473 108 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 4:e472f5ce3473 109 int portNum;
AzureIoTClient 4:e472f5ce3473 110 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 4:e472f5ce3473 111 uint16_t packetId;
AzureIoTClient 4:e472f5ce3473 112 bool isRegistered;
AzureIoTClient 4:e472f5ce3473 113 bool connected;
AzureIoTClient 4:e472f5ce3473 114 bool subscribed;
AzureIoTClient 4:e472f5ce3473 115 bool receiveMessages;
AzureIoTClient 4:e472f5ce3473 116 bool destroyCalled;
AzureIoTClient 4:e472f5ce3473 117 DLIST_ENTRY waitingForAck;
AzureIoTClient 4:e472f5ce3473 118 PDLIST_ENTRY waitingToSend;
AzureIoTClient 4:e472f5ce3473 119 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 4:e472f5ce3473 120 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 4:e472f5ce3473 121 XIO_HANDLE xioTransport;
AzureIoTClient 6:16875b609849 122 uint16_t keepAliveValue;
AzureIoTClient 4:e472f5ce3473 123 uint64_t mqtt_connect_time;
AzureIoTClient 4:e472f5ce3473 124 size_t connectFailCount;
AzureIoTClient 4:e472f5ce3473 125 uint64_t connectTick;
Azure.IoT Build 0:5e72a75c31b8 126 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
Azure.IoT Build 0:5e72a75c31b8 127
Azure.IoT Build 0:5e72a75c31b8 128 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
Azure.IoT Build 0:5e72a75c31b8 129 {
AzureIoTClient 4:e472f5ce3473 130 uint64_t msgPublishTime;
AzureIoTClient 4:e472f5ce3473 131 size_t retryCount;
AzureIoTClient 4:e472f5ce3473 132 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 4:e472f5ce3473 133 void* context;
AzureIoTClient 4:e472f5ce3473 134 uint16_t msgPacketId;
AzureIoTClient 4:e472f5ce3473 135 DLIST_ENTRY entry;
Azure.IoT Build 0:5e72a75c31b8 136 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
Azure.IoT Build 0:5e72a75c31b8 137
AzureIoTClient 6:16875b609849 138 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 6:16875b609849 139 {
AzureIoTClient 6:16875b609849 140 if (transportState->packetId+1 >= USHRT_MAX)
AzureIoTClient 6:16875b609849 141 {
AzureIoTClient 6:16875b609849 142 transportState->packetId = 1;
AzureIoTClient 6:16875b609849 143 }
AzureIoTClient 6:16875b609849 144 else
AzureIoTClient 6:16875b609849 145 {
AzureIoTClient 6:16875b609849 146 transportState->packetId++;
AzureIoTClient 6:16875b609849 147 }
AzureIoTClient 6:16875b609849 148 return transportState->packetId;
AzureIoTClient 6:16875b609849 149 }
AzureIoTClient 6:16875b609849 150
Azure.IoT Build 5:73603e7a6542 151 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transportState, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
Azure.IoT Build 0:5e72a75c31b8 152 {
AzureIoTClient 4:e472f5ce3473 153 DLIST_ENTRY messageCompleted;
AzureIoTClient 4:e472f5ce3473 154 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 4:e472f5ce3473 155 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
Azure.IoT Build 5:73603e7a6542 156 IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, confirmResult);
Azure.IoT Build 0:5e72a75c31b8 157 }
Azure.IoT Build 0:5e72a75c31b8 158
AzureIoTClient 2:9db4da50abaa 159 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 2:9db4da50abaa 160 {
AzureIoTClient 4:e472f5ce3473 161 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 4:e472f5ce3473 162 const char* const* propertyKeys;
AzureIoTClient 4:e472f5ce3473 163 const char* const* propertyValues;
AzureIoTClient 4:e472f5ce3473 164 size_t propertyCount;
AzureIoTClient 2:9db4da50abaa 165
AzureIoTClient 4:e472f5ce3473 166 // Construct Properties
AzureIoTClient 4:e472f5ce3473 167 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 4:e472f5ce3473 168 if (properties_map != NULL)
AzureIoTClient 4:e472f5ce3473 169 {
AzureIoTClient 4:e472f5ce3473 170 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 4:e472f5ce3473 171 {
AzureIoTClient 4:e472f5ce3473 172 LogError("Failed to get the internals of the property map.");
AzureIoTClient 4:e472f5ce3473 173 STRING_delete(result);
AzureIoTClient 4:e472f5ce3473 174 result = NULL;
AzureIoTClient 4:e472f5ce3473 175 }
AzureIoTClient 4:e472f5ce3473 176 else
AzureIoTClient 4:e472f5ce3473 177 {
AzureIoTClient 4:e472f5ce3473 178 if (propertyCount != 0)
AzureIoTClient 4:e472f5ce3473 179 {
AzureIoTClient 4:e472f5ce3473 180 for (size_t index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 4:e472f5ce3473 181 {
AzureIoTClient 4:e472f5ce3473 182 size_t len = strlen(propertyKeys[index]) + strlen(propertyValues[index]) + 2;
AzureIoTClient 4:e472f5ce3473 183 char* propValues = malloc(len+1);
AzureIoTClient 4:e472f5ce3473 184 if (propValues == NULL)
AzureIoTClient 4:e472f5ce3473 185 {
AzureIoTClient 4:e472f5ce3473 186 STRING_delete(result);
AzureIoTClient 4:e472f5ce3473 187 result = NULL;
AzureIoTClient 4:e472f5ce3473 188 }
AzureIoTClient 4:e472f5ce3473 189 else
AzureIoTClient 4:e472f5ce3473 190 {
AzureIoTClient 4:e472f5ce3473 191 sprintf(propValues, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : "&");
AzureIoTClient 4:e472f5ce3473 192 if (STRING_concat(result, propValues) != 0)
AzureIoTClient 4:e472f5ce3473 193 {
AzureIoTClient 4:e472f5ce3473 194 STRING_delete(result);
AzureIoTClient 4:e472f5ce3473 195 result = NULL;
AzureIoTClient 4:e472f5ce3473 196 }
AzureIoTClient 4:e472f5ce3473 197 free(propValues);
AzureIoTClient 4:e472f5ce3473 198 }
AzureIoTClient 4:e472f5ce3473 199 }
AzureIoTClient 4:e472f5ce3473 200 }
AzureIoTClient 4:e472f5ce3473 201 }
AzureIoTClient 4:e472f5ce3473 202 }
AzureIoTClient 4:e472f5ce3473 203 return result;
AzureIoTClient 2:9db4da50abaa 204 }
AzureIoTClient 2:9db4da50abaa 205
Azure.IoT Build 0:5e72a75c31b8 206 static int publishMqttMessage(PMQTTTRANSPORT_HANDLE_DATA transportState, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
Azure.IoT Build 0:5e72a75c31b8 207 {
AzureIoTClient 4:e472f5ce3473 208 int result;
AzureIoTClient 6:16875b609849 209 mqttMsgEntry->msgPacketId = get_next_packet_id(transportState);
AzureIoTClient 4:e472f5ce3473 210 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transportState->mqttEventTopic));
AzureIoTClient 4:e472f5ce3473 211 if (msgTopic == NULL)
AzureIoTClient 4:e472f5ce3473 212 {
AzureIoTClient 4:e472f5ce3473 213 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 214 }
AzureIoTClient 4:e472f5ce3473 215 else
AzureIoTClient 4:e472f5ce3473 216 {
AzureIoTClient 6:16875b609849 217 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->msgPacketId, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 4:e472f5ce3473 218 if (mqttMsg == NULL)
AzureIoTClient 4:e472f5ce3473 219 {
AzureIoTClient 4:e472f5ce3473 220 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 221 }
AzureIoTClient 4:e472f5ce3473 222 else
AzureIoTClient 4:e472f5ce3473 223 {
AzureIoTClient 4:e472f5ce3473 224 if (mqtt_client_publish(transportState->mqttClient, mqttMsg) != 0)
AzureIoTClient 4:e472f5ce3473 225 {
AzureIoTClient 4:e472f5ce3473 226 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 227 }
AzureIoTClient 4:e472f5ce3473 228 else
AzureIoTClient 4:e472f5ce3473 229 {
AzureIoTClient 4:e472f5ce3473 230 mqttMsgEntry->retryCount++;
AzureIoTClient 4:e472f5ce3473 231 (void)tickcounter_get_current_ms(g_msgTickCounter, &mqttMsgEntry->msgPublishTime);
AzureIoTClient 4:e472f5ce3473 232 result = 0;
AzureIoTClient 4:e472f5ce3473 233 }
AzureIoTClient 4:e472f5ce3473 234 mqttmessage_destroy(mqttMsg);
AzureIoTClient 4:e472f5ce3473 235 }
AzureIoTClient 4:e472f5ce3473 236 STRING_delete(msgTopic);
AzureIoTClient 4:e472f5ce3473 237 }
AzureIoTClient 4:e472f5ce3473 238 return result;
AzureIoTClient 3:40f482ed0be8 239 }
AzureIoTClient 3:40f482ed0be8 240
AzureIoTClient 3:40f482ed0be8 241 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 3:40f482ed0be8 242 {
AzureIoTClient 4:e472f5ce3473 243 bool result = false;
AzureIoTClient 4:e472f5ce3473 244 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 4:e472f5ce3473 245 for (size_t index = 0; index < propCount; index++)
AzureIoTClient 4:e472f5ce3473 246 {
AzureIoTClient 4:e472f5ce3473 247 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 4:e472f5ce3473 248 {
AzureIoTClient 4:e472f5ce3473 249 result = true;
AzureIoTClient 4:e472f5ce3473 250 break;
AzureIoTClient 4:e472f5ce3473 251 }
AzureIoTClient 4:e472f5ce3473 252 }
AzureIoTClient 4:e472f5ce3473 253 return result;
AzureIoTClient 3:40f482ed0be8 254 }
AzureIoTClient 3:40f482ed0be8 255
AzureIoTClient 3:40f482ed0be8 256 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, MQTT_MESSAGE_HANDLE msgHandle)
AzureIoTClient 3:40f482ed0be8 257 {
AzureIoTClient 4:e472f5ce3473 258 int result;
AzureIoTClient 4:e472f5ce3473 259 STRING_HANDLE mqttTopic = STRING_construct(mqttmessage_getTopicName(msgHandle));
AzureIoTClient 3:40f482ed0be8 260
AzureIoTClient 4:e472f5ce3473 261 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 4:e472f5ce3473 262 if (token != NULL)
AzureIoTClient 4:e472f5ce3473 263 {
AzureIoTClient 4:e472f5ce3473 264 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 4:e472f5ce3473 265 if (propertyMap == NULL)
AzureIoTClient 4:e472f5ce3473 266 {
AzureIoTClient 4:e472f5ce3473 267 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 4:e472f5ce3473 268 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 269 }
AzureIoTClient 4:e472f5ce3473 270 else
AzureIoTClient 4:e472f5ce3473 271 {
AzureIoTClient 4:e472f5ce3473 272 STRING_HANDLE output = STRING_new();
AzureIoTClient 4:e472f5ce3473 273 if (output == NULL)
AzureIoTClient 4:e472f5ce3473 274 {
AzureIoTClient 4:e472f5ce3473 275 LogError("Failure to allocate STRING_new.");
AzureIoTClient 4:e472f5ce3473 276 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 277 }
AzureIoTClient 4:e472f5ce3473 278 else
AzureIoTClient 4:e472f5ce3473 279 {
AzureIoTClient 4:e472f5ce3473 280 result = 0;
AzureIoTClient 4:e472f5ce3473 281 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 4:e472f5ce3473 282 {
AzureIoTClient 4:e472f5ce3473 283 const char* tokenData = STRING_c_str(output);
AzureIoTClient 4:e472f5ce3473 284 size_t tokenLen = strlen(tokenData);
AzureIoTClient 4:e472f5ce3473 285 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 4:e472f5ce3473 286 {
AzureIoTClient 4:e472f5ce3473 287 break;
AzureIoTClient 4:e472f5ce3473 288 }
AzureIoTClient 4:e472f5ce3473 289 else
AzureIoTClient 4:e472f5ce3473 290 {
AzureIoTClient 4:e472f5ce3473 291 if (!isSystemProperty(tokenData) )
AzureIoTClient 4:e472f5ce3473 292 {
AzureIoTClient 4:e472f5ce3473 293 const char* iterator = tokenData;
AzureIoTClient 4:e472f5ce3473 294 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 4:e472f5ce3473 295 {
AzureIoTClient 4:e472f5ce3473 296 if (*iterator == '=')
AzureIoTClient 4:e472f5ce3473 297 {
AzureIoTClient 4:e472f5ce3473 298 size_t nameLen = iterator - tokenData;
AzureIoTClient 4:e472f5ce3473 299 char* propName = malloc(nameLen + 1);
AzureIoTClient 3:40f482ed0be8 300
AzureIoTClient 4:e472f5ce3473 301 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 4:e472f5ce3473 302 char* propValue = malloc(valLen + 1);
AzureIoTClient 3:40f482ed0be8 303
AzureIoTClient 4:e472f5ce3473 304 if (propName == NULL || propValue == NULL)
AzureIoTClient 4:e472f5ce3473 305 {
AzureIoTClient 4:e472f5ce3473 306 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 307 }
AzureIoTClient 4:e472f5ce3473 308 else
AzureIoTClient 4:e472f5ce3473 309 {
AzureIoTClient 4:e472f5ce3473 310 strncpy(propName, tokenData, nameLen);
AzureIoTClient 4:e472f5ce3473 311 propName[nameLen] = '\0';
AzureIoTClient 3:40f482ed0be8 312
AzureIoTClient 4:e472f5ce3473 313 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 4:e472f5ce3473 314 propValue[valLen] = '\0';
AzureIoTClient 3:40f482ed0be8 315
AzureIoTClient 4:e472f5ce3473 316 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 4:e472f5ce3473 317 {
AzureIoTClient 4:e472f5ce3473 318 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 4:e472f5ce3473 319 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 320 }
AzureIoTClient 4:e472f5ce3473 321 }
AzureIoTClient 4:e472f5ce3473 322 free(propName);
AzureIoTClient 4:e472f5ce3473 323 free(propValue);
AzureIoTClient 3:40f482ed0be8 324
AzureIoTClient 4:e472f5ce3473 325 break;
AzureIoTClient 4:e472f5ce3473 326 }
AzureIoTClient 4:e472f5ce3473 327 iterator++;
AzureIoTClient 4:e472f5ce3473 328 }
AzureIoTClient 4:e472f5ce3473 329 }
AzureIoTClient 4:e472f5ce3473 330 }
AzureIoTClient 4:e472f5ce3473 331 }
AzureIoTClient 4:e472f5ce3473 332 STRING_delete(output);
AzureIoTClient 4:e472f5ce3473 333 }
AzureIoTClient 4:e472f5ce3473 334 }
AzureIoTClient 4:e472f5ce3473 335 STRING_TOKENIZER_destroy(token);
AzureIoTClient 4:e472f5ce3473 336 }
AzureIoTClient 4:e472f5ce3473 337 else
AzureIoTClient 4:e472f5ce3473 338 {
AzureIoTClient 4:e472f5ce3473 339 LogError("Unable to create Tokenizer object.");
AzureIoTClient 4:e472f5ce3473 340 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 341 }
AzureIoTClient 4:e472f5ce3473 342 STRING_delete(mqttTopic);
AzureIoTClient 3:40f482ed0be8 343
AzureIoTClient 4:e472f5ce3473 344 return result;
AzureIoTClient 3:40f482ed0be8 345 }
AzureIoTClient 3:40f482ed0be8 346
AzureIoTClient 3:40f482ed0be8 347 static void MqttRecvCallback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 3:40f482ed0be8 348 {
AzureIoTClient 4:e472f5ce3473 349 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 4:e472f5ce3473 350 {
AzureIoTClient 4:e472f5ce3473 351 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 4:e472f5ce3473 352 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 4:e472f5ce3473 353 if (IoTHubMessage == NULL)
AzureIoTClient 4:e472f5ce3473 354 {
AzureIoTClient 4:e472f5ce3473 355 LogError("IotHub Message creation has failed.");
AzureIoTClient 4:e472f5ce3473 356 }
AzureIoTClient 4:e472f5ce3473 357 else
AzureIoTClient 4:e472f5ce3473 358 {
AzureIoTClient 4:e472f5ce3473 359 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 4:e472f5ce3473 360 (void)extractMqttProperties(IoTHubMessage, msgHandle);
AzureIoTClient 4:e472f5ce3473 361 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 4:e472f5ce3473 362 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
AzureIoTClient 4:e472f5ce3473 363 {
AzureIoTClient 4:e472f5ce3473 364 LogError("Event not accepted by our client.");
AzureIoTClient 4:e472f5ce3473 365 }
AzureIoTClient 4:e472f5ce3473 366 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 4:e472f5ce3473 367 }
AzureIoTClient 4:e472f5ce3473 368 }
AzureIoTClient 3:40f482ed0be8 369 }
AzureIoTClient 3:40f482ed0be8 370
AzureIoTClient 3:40f482ed0be8 371 static void MqttOpCompleteCallback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 3:40f482ed0be8 372 {
AzureIoTClient 4:e472f5ce3473 373 (void)handle;
AzureIoTClient 4:e472f5ce3473 374 if (callbackCtx != NULL)
AzureIoTClient 4:e472f5ce3473 375 {
AzureIoTClient 4:e472f5ce3473 376 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 3:40f482ed0be8 377
AzureIoTClient 4:e472f5ce3473 378 switch (actionResult)
AzureIoTClient 4:e472f5ce3473 379 {
AzureIoTClient 4:e472f5ce3473 380 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 4:e472f5ce3473 381 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 4:e472f5ce3473 382 {
AzureIoTClient 4:e472f5ce3473 383 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 4:e472f5ce3473 384 if (puback != NULL)
AzureIoTClient 4:e472f5ce3473 385 {
AzureIoTClient 4:e472f5ce3473 386 PDLIST_ENTRY currentListEntry = transportData->waitingForAck.Flink;
AzureIoTClient 4:e472f5ce3473 387 while (currentListEntry != &transportData->waitingForAck)
AzureIoTClient 4:e472f5ce3473 388 {
AzureIoTClient 4:e472f5ce3473 389 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 4:e472f5ce3473 390 DLIST_ENTRY saveListEntry;
AzureIoTClient 4:e472f5ce3473 391 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 3:40f482ed0be8 392
AzureIoTClient 4:e472f5ce3473 393 if (puback->packetId == mqttMsgEntry->msgPacketId)
AzureIoTClient 4:e472f5ce3473 394 {
AzureIoTClient 4:e472f5ce3473 395 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
Azure.IoT Build 5:73603e7a6542 396 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportData, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 4:e472f5ce3473 397 free(mqttMsgEntry);
AzureIoTClient 4:e472f5ce3473 398 }
AzureIoTClient 4:e472f5ce3473 399 currentListEntry = saveListEntry.Flink;
AzureIoTClient 4:e472f5ce3473 400 }
AzureIoTClient 4:e472f5ce3473 401 }
AzureIoTClient 4:e472f5ce3473 402 break;
AzureIoTClient 4:e472f5ce3473 403 }
AzureIoTClient 4:e472f5ce3473 404 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 4:e472f5ce3473 405 {
AzureIoTClient 4:e472f5ce3473 406 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 4:e472f5ce3473 407 if (connack != NULL)
AzureIoTClient 4:e472f5ce3473 408 {
AzureIoTClient 4:e472f5ce3473 409 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 4:e472f5ce3473 410 {
AzureIoTClient 4:e472f5ce3473 411 // The connect packet has been acked
AzureIoTClient 4:e472f5ce3473 412 transportData->currPacketState = CONNACK_TYPE;
AzureIoTClient 4:e472f5ce3473 413 }
AzureIoTClient 4:e472f5ce3473 414 else
AzureIoTClient 4:e472f5ce3473 415 {
AzureIoTClient 4:e472f5ce3473 416 LogError("Connection not accepted, return code: %d.", connack->returnCode);
AzureIoTClient 4:e472f5ce3473 417 (void)mqtt_client_disconnect(transportData->mqttClient);
AzureIoTClient 4:e472f5ce3473 418 transportData->connected = false;
AzureIoTClient 4:e472f5ce3473 419 transportData->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 4:e472f5ce3473 420 }
AzureIoTClient 4:e472f5ce3473 421 }
AzureIoTClient 4:e472f5ce3473 422 else
AzureIoTClient 4:e472f5ce3473 423 {
AzureIoTClient 4:e472f5ce3473 424 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 4:e472f5ce3473 425 }
AzureIoTClient 4:e472f5ce3473 426 break;
AzureIoTClient 4:e472f5ce3473 427 }
AzureIoTClient 4:e472f5ce3473 428 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 4:e472f5ce3473 429 {
AzureIoTClient 4:e472f5ce3473 430 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 4:e472f5ce3473 431 if (suback != NULL)
AzureIoTClient 4:e472f5ce3473 432 {
AzureIoTClient 4:e472f5ce3473 433 if (suback->qosCount == 1)
AzureIoTClient 4:e472f5ce3473 434 {
AzureIoTClient 4:e472f5ce3473 435 // The connect packet has been acked
AzureIoTClient 4:e472f5ce3473 436 transportData->currPacketState = SUBACK_TYPE;
AzureIoTClient 4:e472f5ce3473 437 }
AzureIoTClient 4:e472f5ce3473 438 else
AzureIoTClient 4:e472f5ce3473 439 {
AzureIoTClient 4:e472f5ce3473 440 LogError("QOS count was not expected: %d.", (int)suback->qosCount);
AzureIoTClient 4:e472f5ce3473 441 }
AzureIoTClient 4:e472f5ce3473 442 }
AzureIoTClient 4:e472f5ce3473 443 break;
AzureIoTClient 4:e472f5ce3473 444 }
AzureIoTClient 4:e472f5ce3473 445 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 4:e472f5ce3473 446 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 4:e472f5ce3473 447 {
AzureIoTClient 4:e472f5ce3473 448 // Currently not used
AzureIoTClient 4:e472f5ce3473 449 break;
AzureIoTClient 4:e472f5ce3473 450 }
AzureIoTClient 4:e472f5ce3473 451 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 4:e472f5ce3473 452 {
AzureIoTClient 4:e472f5ce3473 453 // Close the client so we can reconnect again
AzureIoTClient 4:e472f5ce3473 454 transportData->connected = false;
AzureIoTClient 4:e472f5ce3473 455 transportData->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 4:e472f5ce3473 456 break;
AzureIoTClient 4:e472f5ce3473 457 }
AzureIoTClient 4:e472f5ce3473 458 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 4:e472f5ce3473 459 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 4:e472f5ce3473 460 case MQTT_CLIENT_ON_ERROR:
AzureIoTClient 4:e472f5ce3473 461 {
AzureIoTClient 4:e472f5ce3473 462 xio_close(transportData->xioTransport, NULL, NULL);
AzureIoTClient 4:e472f5ce3473 463 transportData->connected = false;
AzureIoTClient 4:e472f5ce3473 464 transportData->subscribed = false;
AzureIoTClient 4:e472f5ce3473 465 transportData->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 4:e472f5ce3473 466 }
AzureIoTClient 4:e472f5ce3473 467 }
AzureIoTClient 4:e472f5ce3473 468 }
AzureIoTClient 3:40f482ed0be8 469 }
AzureIoTClient 3:40f482ed0be8 470
AzureIoTClient 3:40f482ed0be8 471 const XIO_HANDLE getIoTransportProvider(const char* fqdn, int port)
AzureIoTClient 3:40f482ed0be8 472 {
AzureIoTClient 6:16875b609849 473 TLSIO_CONFIG tls_io_config;
AzureIoTClient 4:e472f5ce3473 474 const IO_INTERFACE_DESCRIPTION* io_interface_description = platform_get_default_tlsio();
AzureIoTClient 6:16875b609849 475 tls_io_config.hostname = fqdn;
AzureIoTClient 6:16875b609849 476 tls_io_config.port = port;
AzureIoTClient 6:16875b609849 477 return xio_create(io_interface_description, &tls_io_config);
AzureIoTClient 3:40f482ed0be8 478 }
AzureIoTClient 3:40f482ed0be8 479
AzureIoTClient 3:40f482ed0be8 480 static int SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 481 {
AzureIoTClient 4:e472f5ce3473 482 int result;
AzureIoTClient 3:40f482ed0be8 483
AzureIoTClient 4:e472f5ce3473 484 if (transportState->receiveMessages && !transportState->subscribed)
AzureIoTClient 4:e472f5ce3473 485 {
AzureIoTClient 6:16875b609849 486 SUBSCRIBE_PAYLOAD subscribe[1];
AzureIoTClient 6:16875b609849 487
AzureIoTClient 6:16875b609849 488 subscribe[0].subscribeTopic = STRING_c_str(transportState->mqttMessageTopic);
AzureIoTClient 6:16875b609849 489 subscribe[0].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 6:16875b609849 490
AzureIoTClient 4:e472f5ce3473 491 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
AzureIoTClient 6:16875b609849 492 if (mqtt_client_subscribe(transportState->mqttClient, get_next_packet_id(transportState), subscribe, 1) != 0)
AzureIoTClient 4:e472f5ce3473 493 {
AzureIoTClient 4:e472f5ce3473 494 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
AzureIoTClient 4:e472f5ce3473 495 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 496 }
AzureIoTClient 4:e472f5ce3473 497 else
AzureIoTClient 4:e472f5ce3473 498 {
AzureIoTClient 4:e472f5ce3473 499 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransportMqtt_Subscribe shall return 0.] */
AzureIoTClient 4:e472f5ce3473 500 transportState->subscribed = true;
AzureIoTClient 4:e472f5ce3473 501 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 4:e472f5ce3473 502 result = 0;
AzureIoTClient 4:e472f5ce3473 503 }
AzureIoTClient 4:e472f5ce3473 504 }
AzureIoTClient 4:e472f5ce3473 505 else
AzureIoTClient 4:e472f5ce3473 506 {
AzureIoTClient 4:e472f5ce3473 507 if (transportState->receiveMessages)
AzureIoTClient 4:e472f5ce3473 508 {
AzureIoTClient 4:e472f5ce3473 509 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 4:e472f5ce3473 510 }
AzureIoTClient 4:e472f5ce3473 511 else
AzureIoTClient 4:e472f5ce3473 512 {
AzureIoTClient 4:e472f5ce3473 513 transportState->currPacketState = PUBLISH_TYPE;
AzureIoTClient 4:e472f5ce3473 514 }
AzureIoTClient 6:16875b609849 515 result = 0;
AzureIoTClient 4:e472f5ce3473 516 }
AzureIoTClient 4:e472f5ce3473 517 return result;
AzureIoTClient 3:40f482ed0be8 518 }
AzureIoTClient 3:40f482ed0be8 519
AzureIoTClient 3:40f482ed0be8 520 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 3:40f482ed0be8 521 {
AzureIoTClient 4:e472f5ce3473 522 const unsigned char* result;
AzureIoTClient 3:40f482ed0be8 523
AzureIoTClient 4:e472f5ce3473 524 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 4:e472f5ce3473 525 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 4:e472f5ce3473 526 {
AzureIoTClient 4:e472f5ce3473 527 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 4:e472f5ce3473 528 {
AzureIoTClient 4:e472f5ce3473 529 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 4:e472f5ce3473 530 result = NULL;
AzureIoTClient 4:e472f5ce3473 531 *length = 0;
AzureIoTClient 4:e472f5ce3473 532 }
AzureIoTClient 4:e472f5ce3473 533 }
AzureIoTClient 4:e472f5ce3473 534 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 4:e472f5ce3473 535 {
AzureIoTClient 4:e472f5ce3473 536 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 4:e472f5ce3473 537 if (result == NULL)
AzureIoTClient 4:e472f5ce3473 538 {
AzureIoTClient 4:e472f5ce3473 539 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 4:e472f5ce3473 540 result = NULL;
AzureIoTClient 4:e472f5ce3473 541 *length = 0;
AzureIoTClient 4:e472f5ce3473 542 }
AzureIoTClient 4:e472f5ce3473 543 else
AzureIoTClient 4:e472f5ce3473 544 {
AzureIoTClient 4:e472f5ce3473 545 *length = strlen((const char*)result);
AzureIoTClient 4:e472f5ce3473 546 }
AzureIoTClient 4:e472f5ce3473 547 }
AzureIoTClient 4:e472f5ce3473 548 else
AzureIoTClient 4:e472f5ce3473 549 {
AzureIoTClient 4:e472f5ce3473 550 result = NULL;
AzureIoTClient 4:e472f5ce3473 551 *length = 0;
AzureIoTClient 4:e472f5ce3473 552 }
AzureIoTClient 4:e472f5ce3473 553 return result;
AzureIoTClient 3:40f482ed0be8 554 }
AzureIoTClient 3:40f482ed0be8 555
AzureIoTClient 3:40f482ed0be8 556 static STRING_HANDLE ConstructSasToken(const char* iothubName, const char* iotHubSuffix, const char* deviceId)
AzureIoTClient 3:40f482ed0be8 557 {
AzureIoTClient 4:e472f5ce3473 558 STRING_HANDLE result;
AzureIoTClient 4:e472f5ce3473 559 size_t len = strlen(iothubName);
AzureIoTClient 4:e472f5ce3473 560 len += strlen(iotHubSuffix);
AzureIoTClient 4:e472f5ce3473 561 len += strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 562
AzureIoTClient 4:e472f5ce3473 563 char* sasToken = malloc(len + SAS_TOKEN_DEFAULT_LEN + 1);
AzureIoTClient 4:e472f5ce3473 564 if (sasToken == NULL)
AzureIoTClient 4:e472f5ce3473 565 {
AzureIoTClient 4:e472f5ce3473 566 result = NULL;
AzureIoTClient 4:e472f5ce3473 567 }
AzureIoTClient 4:e472f5ce3473 568 else
AzureIoTClient 4:e472f5ce3473 569 {
AzureIoTClient 4:e472f5ce3473 570 (void)sprintf(sasToken, "%s.%s/devices/%s", iothubName, iotHubSuffix, deviceId);
AzureIoTClient 4:e472f5ce3473 571 result = STRING_construct(sasToken);
AzureIoTClient 4:e472f5ce3473 572 free(sasToken);
AzureIoTClient 4:e472f5ce3473 573 }
AzureIoTClient 4:e472f5ce3473 574 return result;
AzureIoTClient 3:40f482ed0be8 575 }
AzureIoTClient 3:40f482ed0be8 576
AzureIoTClient 3:40f482ed0be8 577 static STRING_HANDLE ConstructEventTopic(const char* deviceId)
AzureIoTClient 3:40f482ed0be8 578 {
AzureIoTClient 4:e472f5ce3473 579 STRING_HANDLE result;
AzureIoTClient 4:e472f5ce3473 580 size_t len = strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 581
AzureIoTClient 4:e472f5ce3473 582 char* eventTopic = malloc(len + EVENT_TOPIC_DEFAULT_LEN + 1);
AzureIoTClient 4:e472f5ce3473 583 if (eventTopic == NULL)
AzureIoTClient 4:e472f5ce3473 584 {
AzureIoTClient 4:e472f5ce3473 585 result = NULL;
AzureIoTClient 4:e472f5ce3473 586 }
AzureIoTClient 4:e472f5ce3473 587 else
AzureIoTClient 4:e472f5ce3473 588 {
AzureIoTClient 4:e472f5ce3473 589 (void)sprintf(eventTopic, DEVICE_DEVICE_TOPIC, deviceId);
AzureIoTClient 4:e472f5ce3473 590 result = STRING_construct(eventTopic);
AzureIoTClient 4:e472f5ce3473 591 free(eventTopic);
AzureIoTClient 4:e472f5ce3473 592 }
AzureIoTClient 4:e472f5ce3473 593 return result;
AzureIoTClient 3:40f482ed0be8 594 }
AzureIoTClient 3:40f482ed0be8 595
AzureIoTClient 3:40f482ed0be8 596 static STRING_HANDLE ConstructMessageTopic(const char* deviceId)
AzureIoTClient 3:40f482ed0be8 597 {
AzureIoTClient 4:e472f5ce3473 598 STRING_HANDLE result;
AzureIoTClient 4:e472f5ce3473 599 size_t len = strlen(deviceId);
AzureIoTClient 3:40f482ed0be8 600
AzureIoTClient 4:e472f5ce3473 601 char* messageTopic = malloc(len + 32 + 1);
AzureIoTClient 4:e472f5ce3473 602 if (messageTopic == NULL)
AzureIoTClient 4:e472f5ce3473 603 {
AzureIoTClient 4:e472f5ce3473 604 result = NULL;
AzureIoTClient 4:e472f5ce3473 605 }
AzureIoTClient 4:e472f5ce3473 606 else
AzureIoTClient 4:e472f5ce3473 607 {
AzureIoTClient 4:e472f5ce3473 608 (void)sprintf(messageTopic, DEVICE_MSG_TOPIC, deviceId);
AzureIoTClient 4:e472f5ce3473 609 result = STRING_construct(messageTopic);
AzureIoTClient 4:e472f5ce3473 610 free(messageTopic);
AzureIoTClient 4:e472f5ce3473 611 }
AzureIoTClient 4:e472f5ce3473 612 return result;
AzureIoTClient 3:40f482ed0be8 613 }
AzureIoTClient 3:40f482ed0be8 614
AzureIoTClient 3:40f482ed0be8 615 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 616 {
AzureIoTClient 4:e472f5ce3473 617 int result;
AzureIoTClient 3:40f482ed0be8 618
AzureIoTClient 4:e472f5ce3473 619 if (transportState->xioTransport == NULL)
AzureIoTClient 4:e472f5ce3473 620 {
AzureIoTClient 4:e472f5ce3473 621 // construct address
AzureIoTClient 4:e472f5ce3473 622 const char* hostAddress = STRING_c_str(transportState->hostAddress);
AzureIoTClient 4:e472f5ce3473 623 transportState->xioTransport = getIoTransportProvider(hostAddress, transportState->portNum);
AzureIoTClient 4:e472f5ce3473 624 if (transportState->xioTransport == NULL)
AzureIoTClient 4:e472f5ce3473 625 {
AzureIoTClient 4:e472f5ce3473 626 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 4:e472f5ce3473 627 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 628 }
AzureIoTClient 4:e472f5ce3473 629 else
AzureIoTClient 4:e472f5ce3473 630 {
AzureIoTClient 4:e472f5ce3473 631 result = 0;
AzureIoTClient 4:e472f5ce3473 632 }
AzureIoTClient 4:e472f5ce3473 633 }
AzureIoTClient 4:e472f5ce3473 634 else
AzureIoTClient 4:e472f5ce3473 635 {
AzureIoTClient 4:e472f5ce3473 636 result = 0;
AzureIoTClient 4:e472f5ce3473 637 }
AzureIoTClient 4:e472f5ce3473 638 return result;
AzureIoTClient 3:40f482ed0be8 639 }
AzureIoTClient 3:40f482ed0be8 640
AzureIoTClient 3:40f482ed0be8 641 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 3:40f482ed0be8 642 {
AzureIoTClient 4:e472f5ce3473 643 int result;
AzureIoTClient 3:40f482ed0be8 644
AzureIoTClient 4:e472f5ce3473 645 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 4:e472f5ce3473 646 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 3:40f482ed0be8 647 if (emptyKeyName == NULL)
Azure.IoT Build 0:5e72a75c31b8 648 {
Azure.IoT Build 0:5e72a75c31b8 649 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 650 }
Azure.IoT Build 0:5e72a75c31b8 651 else
Azure.IoT Build 0:5e72a75c31b8 652 {
AzureIoTClient 3:40f482ed0be8 653 STRING_HANDLE sasToken = NULL;
AzureIoTClient 7:7fdd306e6224 654
AzureIoTClient 7:7fdd306e6224 655 switch (transportState->transport_creds.credential_type)
AzureIoTClient 3:40f482ed0be8 656 {
AzureIoTClient 7:7fdd306e6224 657 case SAS_TOKEN_FROM_USER:
AzureIoTClient 7:7fdd306e6224 658 sasToken = STRING_clone(transportState->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 659 break;
AzureIoTClient 7:7fdd306e6224 660 case DEVICE_KEY:
AzureIoTClient 7:7fdd306e6224 661 {
AzureIoTClient 7:7fdd306e6224 662 // Construct SAS token
AzureIoTClient 7:7fdd306e6224 663 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 7:7fdd306e6224 664 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 7:7fdd306e6224 665
AzureIoTClient 7:7fdd306e6224 666 sasToken = SASToken_Create(transportState->transport_creds.CREDENTIAL_VALUE.deviceKey, transportState->devicesPath, emptyKeyName, expiryTime);
AzureIoTClient 7:7fdd306e6224 667 break;
AzureIoTClient 7:7fdd306e6224 668 }
AzureIoTClient 7:7fdd306e6224 669 case X509:
AzureIoTClient 7:7fdd306e6224 670 default:
AzureIoTClient 7:7fdd306e6224 671 // The assumption here is that x509 is in place, if not setup
AzureIoTClient 7:7fdd306e6224 672 // correctly the connection will be rejected.
AzureIoTClient 7:7fdd306e6224 673 sasToken = NULL;
AzureIoTClient 7:7fdd306e6224 674 break;
AzureIoTClient 3:40f482ed0be8 675 }
AzureIoTClient 3:40f482ed0be8 676
AzureIoTClient 7:7fdd306e6224 677 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 7:7fdd306e6224 678 options.clientId = (char*)STRING_c_str(transportState->device_id);
AzureIoTClient 7:7fdd306e6224 679 options.willMessage = NULL;
AzureIoTClient 7:7fdd306e6224 680 options.username = (char*)STRING_c_str(transportState->configPassedThroughUsername);
AzureIoTClient 7:7fdd306e6224 681 if (sasToken != NULL)
Azure.IoT Build 0:5e72a75c31b8 682 {
AzureIoTClient 7:7fdd306e6224 683 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 7:7fdd306e6224 684 }
AzureIoTClient 7:7fdd306e6224 685 options.keepAliveInterval = transportState->keepAliveValue;
AzureIoTClient 7:7fdd306e6224 686 options.useCleanSession = false;
AzureIoTClient 7:7fdd306e6224 687 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 7:7fdd306e6224 688
AzureIoTClient 7:7fdd306e6224 689 if (GetTransportProviderIfNecessary(transportState) == 0)
AzureIoTClient 7:7fdd306e6224 690 {
AzureIoTClient 7:7fdd306e6224 691 if (mqtt_client_connect(transportState->mqttClient, transportState->xioTransport, &options) != 0)
AzureIoTClient 7:7fdd306e6224 692 {
AzureIoTClient 7:7fdd306e6224 693 LogError("failure connecting to address %s:%d.", STRING_c_str(transportState->hostAddress), transportState->portNum);
AzureIoTClient 7:7fdd306e6224 694 result = __LINE__;
AzureIoTClient 7:7fdd306e6224 695 }
AzureIoTClient 7:7fdd306e6224 696 else
AzureIoTClient 7:7fdd306e6224 697 {
AzureIoTClient 7:7fdd306e6224 698 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->mqtt_connect_time);
AzureIoTClient 7:7fdd306e6224 699 result = 0;
AzureIoTClient 7:7fdd306e6224 700 }
Azure.IoT Build 0:5e72a75c31b8 701 }
Azure.IoT Build 0:5e72a75c31b8 702 else
Azure.IoT Build 0:5e72a75c31b8 703 {
AzureIoTClient 7:7fdd306e6224 704 result = __LINE__;
Azure.IoT Build 0:5e72a75c31b8 705 }
AzureIoTClient 3:40f482ed0be8 706 STRING_delete(emptyKeyName);
AzureIoTClient 3:40f482ed0be8 707 STRING_delete(sasToken);
AzureIoTClient 2:9db4da50abaa 708 }
AzureIoTClient 4:e472f5ce3473 709 return result;
Azure.IoT Build 0:5e72a75c31b8 710 }
Azure.IoT Build 0:5e72a75c31b8 711
Azure.IoT Build 0:5e72a75c31b8 712 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 713 {
AzureIoTClient 4:e472f5ce3473 714 int result = 0;
AzureIoTClient 2:9db4da50abaa 715
AzureIoTClient 4:e472f5ce3473 716 // Make sure we're not destroying the object
AzureIoTClient 4:e472f5ce3473 717 if (!transportState->destroyCalled)
AzureIoTClient 4:e472f5ce3473 718 {
AzureIoTClient 4:e472f5ce3473 719 // If we are not connected then check to see if we need
AzureIoTClient 4:e472f5ce3473 720 // to back off the connecting to the server
AzureIoTClient 4:e472f5ce3473 721 if (!transportState->connected)
AzureIoTClient 4:e472f5ce3473 722 {
AzureIoTClient 4:e472f5ce3473 723 // Default makeConnection as true if something goes wrong we'll make the connection
AzureIoTClient 4:e472f5ce3473 724 bool makeConnection = true;
AzureIoTClient 4:e472f5ce3473 725 // If we've failed for FAILED_CONN_BACKOFF_VALUE straight times them let's slow down connection
AzureIoTClient 4:e472f5ce3473 726 // to the service
AzureIoTClient 4:e472f5ce3473 727 if (transportState->connectFailCount > FAILED_CONN_BACKOFF_VALUE)
AzureIoTClient 4:e472f5ce3473 728 {
AzureIoTClient 4:e472f5ce3473 729 uint64_t currentTick;
AzureIoTClient 4:e472f5ce3473 730 if (tickcounter_get_current_ms(g_msgTickCounter, &currentTick) == 0)
AzureIoTClient 4:e472f5ce3473 731 {
AzureIoTClient 4:e472f5ce3473 732 if ( ((currentTick - transportState->connectTick)/1000) <= DEFAULT_CONNECTION_INTERVAL)
AzureIoTClient 4:e472f5ce3473 733 {
AzureIoTClient 4:e472f5ce3473 734 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 735 makeConnection = false;
AzureIoTClient 4:e472f5ce3473 736 }
AzureIoTClient 4:e472f5ce3473 737 }
AzureIoTClient 4:e472f5ce3473 738 }
AzureIoTClient 2:9db4da50abaa 739
AzureIoTClient 4:e472f5ce3473 740 if (makeConnection)
AzureIoTClient 4:e472f5ce3473 741 {
AzureIoTClient 4:e472f5ce3473 742 (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->connectTick);
AzureIoTClient 4:e472f5ce3473 743 if (SendMqttConnectMsg(transportState) != 0)
AzureIoTClient 4:e472f5ce3473 744 {
AzureIoTClient 4:e472f5ce3473 745 transportState->connectFailCount++;
AzureIoTClient 4:e472f5ce3473 746 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 747 }
AzureIoTClient 4:e472f5ce3473 748 else
AzureIoTClient 4:e472f5ce3473 749 {
AzureIoTClient 4:e472f5ce3473 750 transportState->connectFailCount = 0;
AzureIoTClient 4:e472f5ce3473 751 transportState->connected = true;
AzureIoTClient 4:e472f5ce3473 752 result = 0;
AzureIoTClient 4:e472f5ce3473 753 }
AzureIoTClient 4:e472f5ce3473 754 }
AzureIoTClient 4:e472f5ce3473 755 }
AzureIoTClient 2:9db4da50abaa 756
AzureIoTClient 4:e472f5ce3473 757 if (transportState->connected)
AzureIoTClient 4:e472f5ce3473 758 {
AzureIoTClient 4:e472f5ce3473 759 // We are connected and not being closed, so does SAS need to reconnect?
AzureIoTClient 4:e472f5ce3473 760 uint64_t current_time;
AzureIoTClient 4:e472f5ce3473 761 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_time);
AzureIoTClient 4:e472f5ce3473 762 if ((current_time - transportState->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 4:e472f5ce3473 763 {
AzureIoTClient 4:e472f5ce3473 764 (void)mqtt_client_disconnect(transportState->mqttClient);
AzureIoTClient 4:e472f5ce3473 765 transportState->subscribed = false;
AzureIoTClient 4:e472f5ce3473 766 transportState->connected = false;
AzureIoTClient 4:e472f5ce3473 767 transportState->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 4:e472f5ce3473 768 }
AzureIoTClient 4:e472f5ce3473 769 }
AzureIoTClient 4:e472f5ce3473 770 }
AzureIoTClient 4:e472f5ce3473 771 return result;
Azure.IoT Build 0:5e72a75c31b8 772 }
Azure.IoT Build 0:5e72a75c31b8 773
Azure.IoT Build 0:5e72a75c31b8 774 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
Azure.IoT Build 0:5e72a75c31b8 775 {
AzureIoTClient 4:e472f5ce3473 776 STRING_HANDLE result;
Azure.IoT Build 0:5e72a75c31b8 777
AzureIoTClient 4:e472f5ce3473 778 size_t len = strlen(upperConfig->iotHubName)+strlen(upperConfig->iotHubSuffix)+strlen(upperConfig->deviceId)+strlen(CLIENT_DEVICE_TYPE_PREFIX)+strlen(IOTHUB_SDK_VERSION);
AzureIoTClient 4:e472f5ce3473 779 char* eventTopic = malloc(len + BUILD_CONFIG_USERNAME + 1);
AzureIoTClient 4:e472f5ce3473 780 if (eventTopic == NULL)
AzureIoTClient 4:e472f5ce3473 781 {
AzureIoTClient 4:e472f5ce3473 782 result = NULL;
AzureIoTClient 4:e472f5ce3473 783 }
AzureIoTClient 4:e472f5ce3473 784 else
AzureIoTClient 4:e472f5ce3473 785 {
AzureIoTClient 4:e472f5ce3473 786 (void)sprintf(eventTopic, "%s.%s/%s/DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
AzureIoTClient 4:e472f5ce3473 787 result = STRING_construct(eventTopic);
AzureIoTClient 4:e472f5ce3473 788 free(eventTopic);
AzureIoTClient 4:e472f5ce3473 789 }
AzureIoTClient 4:e472f5ce3473 790 return result;
Azure.IoT Build 0:5e72a75c31b8 791 }
Azure.IoT Build 0:5e72a75c31b8 792
AzureIoTClient 7:7fdd306e6224 793 static int construct_credential_information(const IOTHUB_CLIENT_CONFIG* upperConfig, PMQTTTRANSPORT_HANDLE_DATA transportState)
AzureIoTClient 7:7fdd306e6224 794 {
AzureIoTClient 7:7fdd306e6224 795 int result;
AzureIoTClient 7:7fdd306e6224 796 if (upperConfig->deviceKey != NULL)
AzureIoTClient 7:7fdd306e6224 797 {
AzureIoTClient 7:7fdd306e6224 798 transportState->transport_creds.CREDENTIAL_VALUE.deviceKey = STRING_construct(upperConfig->deviceKey);
AzureIoTClient 7:7fdd306e6224 799 if (transportState->transport_creds.CREDENTIAL_VALUE.deviceKey == NULL)
AzureIoTClient 7:7fdd306e6224 800 {
AzureIoTClient 7:7fdd306e6224 801 LogError("Could not create device key for MQTT");
AzureIoTClient 7:7fdd306e6224 802 result = __LINE__;
AzureIoTClient 7:7fdd306e6224 803 }
AzureIoTClient 7:7fdd306e6224 804 else if ( (transportState->devicesPath = ConstructSasToken(upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 7:7fdd306e6224 805 {
AzureIoTClient 7:7fdd306e6224 806 STRING_delete(transportState->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 807 result = __LINE__;
AzureIoTClient 7:7fdd306e6224 808 }
AzureIoTClient 7:7fdd306e6224 809 else
AzureIoTClient 7:7fdd306e6224 810 {
AzureIoTClient 7:7fdd306e6224 811 transportState->transport_creds.credential_type = DEVICE_KEY;
AzureIoTClient 7:7fdd306e6224 812 result = 0;
AzureIoTClient 7:7fdd306e6224 813 }
AzureIoTClient 7:7fdd306e6224 814 }
AzureIoTClient 7:7fdd306e6224 815 else if (upperConfig->deviceSasToken != NULL)
AzureIoTClient 7:7fdd306e6224 816 {
AzureIoTClient 7:7fdd306e6224 817 transportState->transport_creds.CREDENTIAL_VALUE.deviceSasToken = STRING_construct(upperConfig->deviceSasToken);
AzureIoTClient 7:7fdd306e6224 818 if (transportState->transport_creds.CREDENTIAL_VALUE.deviceSasToken == NULL)
AzureIoTClient 7:7fdd306e6224 819 {
AzureIoTClient 7:7fdd306e6224 820 result = __LINE__;
AzureIoTClient 7:7fdd306e6224 821 }
AzureIoTClient 7:7fdd306e6224 822 else
AzureIoTClient 7:7fdd306e6224 823 {
AzureIoTClient 7:7fdd306e6224 824 transportState->transport_creds.credential_type = SAS_TOKEN_FROM_USER;
AzureIoTClient 7:7fdd306e6224 825 transportState->devicesPath = NULL;
AzureIoTClient 7:7fdd306e6224 826 result = 0;
AzureIoTClient 7:7fdd306e6224 827 }
AzureIoTClient 7:7fdd306e6224 828 }
AzureIoTClient 7:7fdd306e6224 829 else
AzureIoTClient 7:7fdd306e6224 830 {
AzureIoTClient 7:7fdd306e6224 831 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_041: [If both deviceKey and deviceSasToken fields are NULL then IoTHubTransportMqtt_Create shall assume a x509 authentication.] */
AzureIoTClient 7:7fdd306e6224 832 transportState->transport_creds.credential_type = X509;
AzureIoTClient 7:7fdd306e6224 833 transportState->devicesPath = NULL;
AzureIoTClient 7:7fdd306e6224 834 result = 0;
AzureIoTClient 7:7fdd306e6224 835 }
AzureIoTClient 7:7fdd306e6224 836 return result;
AzureIoTClient 7:7fdd306e6224 837 }
AzureIoTClient 7:7fdd306e6224 838
Azure.IoT Build 0:5e72a75c31b8 839 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
Azure.IoT Build 0:5e72a75c31b8 840 {
AzureIoTClient 4:e472f5ce3473 841 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 4:e472f5ce3473 842 if (state == NULL)
AzureIoTClient 4:e472f5ce3473 843 {
AzureIoTClient 4:e472f5ce3473 844 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 4:e472f5ce3473 845 }
AzureIoTClient 4:e472f5ce3473 846 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 4:e472f5ce3473 847 {
AzureIoTClient 7:7fdd306e6224 848 LogError("failure constructing device_id.");
AzureIoTClient 4:e472f5ce3473 849 free(state);
AzureIoTClient 4:e472f5ce3473 850 state = NULL;
AzureIoTClient 4:e472f5ce3473 851 }
Azure.IoT Build 0:5e72a75c31b8 852 else
Azure.IoT Build 0:5e72a75c31b8 853 {
AzureIoTClient 7:7fdd306e6224 854 if (construct_credential_information(upperConfig, state) != 0)
AzureIoTClient 3:40f482ed0be8 855 {
AzureIoTClient 3:40f482ed0be8 856 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 857 free(state);
AzureIoTClient 3:40f482ed0be8 858 state = NULL;
AzureIoTClient 3:40f482ed0be8 859 }
AzureIoTClient 3:40f482ed0be8 860 else if ((state->mqttEventTopic = ConstructEventTopic(upperConfig->deviceId)) == NULL)
AzureIoTClient 3:40f482ed0be8 861 {
AzureIoTClient 3:40f482ed0be8 862 LogError("Could not create mqttEventTopic for MQTT");
AzureIoTClient 7:7fdd306e6224 863 STRING_delete(state->devicesPath);
AzureIoTClient 7:7fdd306e6224 864 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 7:7fdd306e6224 865 {
AzureIoTClient 7:7fdd306e6224 866 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 867 }
AzureIoTClient 7:7fdd306e6224 868 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 7:7fdd306e6224 869 {
AzureIoTClient 7:7fdd306e6224 870 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 871 }
AzureIoTClient 3:40f482ed0be8 872 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 873 free(state);
AzureIoTClient 3:40f482ed0be8 874 state = NULL;
AzureIoTClient 3:40f482ed0be8 875 }
AzureIoTClient 3:40f482ed0be8 876 else if ((state->mqttMessageTopic = ConstructMessageTopic(upperConfig->deviceId)) == NULL)
AzureIoTClient 3:40f482ed0be8 877 {
AzureIoTClient 3:40f482ed0be8 878 LogError("Could not create mqttMessageTopic for MQTT");
AzureIoTClient 7:7fdd306e6224 879 STRING_delete(state->devicesPath);
AzureIoTClient 7:7fdd306e6224 880 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 7:7fdd306e6224 881 {
AzureIoTClient 7:7fdd306e6224 882 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 883 }
AzureIoTClient 7:7fdd306e6224 884 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 7:7fdd306e6224 885 {
AzureIoTClient 7:7fdd306e6224 886 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 887 }
Azure.IoT Build 0:5e72a75c31b8 888 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 889 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 890 free(state);
Azure.IoT Build 0:5e72a75c31b8 891 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 892 }
Azure.IoT Build 0:5e72a75c31b8 893 else
Azure.IoT Build 0:5e72a75c31b8 894 {
Azure.IoT Build 5:73603e7a6542 895 state->mqttClient = mqtt_client_init(MqttRecvCallback, MqttOpCompleteCallback, state);
AzureIoTClient 3:40f482ed0be8 896 if (state->mqttClient == NULL)
Azure.IoT Build 0:5e72a75c31b8 897 {
AzureIoTClient 7:7fdd306e6224 898 LogError("failure initializing mqtt client.");
AzureIoTClient 7:7fdd306e6224 899 STRING_delete(state->devicesPath);
AzureIoTClient 7:7fdd306e6224 900 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 7:7fdd306e6224 901 {
AzureIoTClient 7:7fdd306e6224 902 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 903 }
AzureIoTClient 7:7fdd306e6224 904 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 7:7fdd306e6224 905 {
AzureIoTClient 7:7fdd306e6224 906 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 907 }
Azure.IoT Build 0:5e72a75c31b8 908 STRING_delete(state->mqttEventTopic);
Azure.IoT Build 0:5e72a75c31b8 909 STRING_delete(state->mqttMessageTopic);
Azure.IoT Build 0:5e72a75c31b8 910 STRING_delete(state->device_id);
Azure.IoT Build 0:5e72a75c31b8 911 free(state);
Azure.IoT Build 0:5e72a75c31b8 912 state = NULL;
Azure.IoT Build 0:5e72a75c31b8 913 }
Azure.IoT Build 0:5e72a75c31b8 914 else
Azure.IoT Build 0:5e72a75c31b8 915 {
AzureIoTClient 3:40f482ed0be8 916 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [The hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 3:40f482ed0be8 917 char tempAddress[DEFAULT_TEMP_STRING_LEN];
AzureIoTClient 3:40f482ed0be8 918 (void)snprintf(tempAddress, DEFAULT_TEMP_STRING_LEN, "%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 3:40f482ed0be8 919 if ((state->hostAddress = STRING_construct(tempAddress)) == NULL)
AzureIoTClient 3:40f482ed0be8 920 {
AzureIoTClient 7:7fdd306e6224 921 LogError("failure constructing host address.");
AzureIoTClient 7:7fdd306e6224 922 STRING_delete(state->devicesPath);
AzureIoTClient 7:7fdd306e6224 923 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 7:7fdd306e6224 924 {
AzureIoTClient 7:7fdd306e6224 925 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 926 }
AzureIoTClient 7:7fdd306e6224 927 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 7:7fdd306e6224 928 {
AzureIoTClient 7:7fdd306e6224 929 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 930 }
AzureIoTClient 3:40f482ed0be8 931 STRING_delete(state->mqttEventTopic);
AzureIoTClient 3:40f482ed0be8 932 STRING_delete(state->mqttMessageTopic);
AzureIoTClient 3:40f482ed0be8 933 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 934 free(state);
AzureIoTClient 3:40f482ed0be8 935 state = NULL;
AzureIoTClient 3:40f482ed0be8 936 }
AzureIoTClient 3:40f482ed0be8 937 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 3:40f482ed0be8 938 {
AzureIoTClient 7:7fdd306e6224 939 STRING_delete(state->devicesPath);
AzureIoTClient 7:7fdd306e6224 940 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 7:7fdd306e6224 941 {
AzureIoTClient 7:7fdd306e6224 942 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 943 }
AzureIoTClient 7:7fdd306e6224 944 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 7:7fdd306e6224 945 {
AzureIoTClient 7:7fdd306e6224 946 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 947 }
AzureIoTClient 3:40f482ed0be8 948 STRING_delete(state->hostAddress);
AzureIoTClient 3:40f482ed0be8 949 STRING_delete(state->mqttEventTopic);
AzureIoTClient 3:40f482ed0be8 950 STRING_delete(state->mqttMessageTopic);
AzureIoTClient 3:40f482ed0be8 951 STRING_delete(state->device_id);
AzureIoTClient 3:40f482ed0be8 952 free(state);
AzureIoTClient 3:40f482ed0be8 953 state = NULL;
AzureIoTClient 3:40f482ed0be8 954 }
AzureIoTClient 3:40f482ed0be8 955 else
AzureIoTClient 3:40f482ed0be8 956 {
AzureIoTClient 3:40f482ed0be8 957 /* 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 958 DList_InitializeListHead(&(state->waitingForAck));
AzureIoTClient 3:40f482ed0be8 959 state->destroyCalled = false;
AzureIoTClient 3:40f482ed0be8 960 state->isRegistered = false;
AzureIoTClient 3:40f482ed0be8 961 state->subscribed = false;
AzureIoTClient 3:40f482ed0be8 962 state->connected = false;
AzureIoTClient 3:40f482ed0be8 963 state->receiveMessages = false;
AzureIoTClient 3:40f482ed0be8 964 state->packetId = 1;
AzureIoTClient 3:40f482ed0be8 965 state->llClientHandle = NULL;
AzureIoTClient 3:40f482ed0be8 966 state->xioTransport = NULL;
AzureIoTClient 3:40f482ed0be8 967 state->portNum = DEFAULT_PORT_NUMBER;
AzureIoTClient 3:40f482ed0be8 968 state->waitingToSend = waitingToSend;
AzureIoTClient 3:40f482ed0be8 969 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 3:40f482ed0be8 970 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 3:40f482ed0be8 971 state->connectFailCount = 0;
AzureIoTClient 3:40f482ed0be8 972 state->connectTick = 0;
AzureIoTClient 3:40f482ed0be8 973 }
Azure.IoT Build 0:5e72a75c31b8 974 }
Azure.IoT Build 0:5e72a75c31b8 975 }
Azure.IoT Build 0:5e72a75c31b8 976 }
AzureIoTClient 4:e472f5ce3473 977 return state;
Azure.IoT Build 0:5e72a75c31b8 978 }
Azure.IoT Build 0:5e72a75c31b8 979
AzureIoTClient 4:e472f5ce3473 980 static TRANSPORT_LL_HANDLE IoTHubTransportMqtt_Create(const IOTHUBTRANSPORT_CONFIG* config)
Azure.IoT Build 0:5e72a75c31b8 981 {
AzureIoTClient 4:e472f5ce3473 982 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 4:e472f5ce3473 983 size_t deviceIdSize;
AzureIoTClient 3:40f482ed0be8 984
AzureIoTClient 4:e472f5ce3473 985 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 4:e472f5ce3473 986 if (config == NULL)
AzureIoTClient 4:e472f5ce3473 987 {
AzureIoTClient 4:e472f5ce3473 988 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 4:e472f5ce3473 989 result = NULL;
AzureIoTClient 4:e472f5ce3473 990 }
AzureIoTClient 4:e472f5ce3473 991 /* 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 4:e472f5ce3473 992 /* 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 7:7fdd306e6224 993 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 7:7fdd306e6224 994 else if (config->upperConfig == NULL ||
AzureIoTClient 7:7fdd306e6224 995 config->upperConfig->protocol == NULL ||
AzureIoTClient 7:7fdd306e6224 996 config->upperConfig->deviceId == NULL ||
AzureIoTClient 7:7fdd306e6224 997 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 7:7fdd306e6224 998 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 7:7fdd306e6224 999 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 4:e472f5ce3473 1000 {
AzureIoTClient 4:e472f5ce3473 1001 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 4:e472f5ce3473 1002 result = NULL;
AzureIoTClient 4:e472f5ce3473 1003 }
AzureIoTClient 4:e472f5ce3473 1004 /* 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 4:e472f5ce3473 1005 else if (config->waitingToSend == NULL)
AzureIoTClient 4:e472f5ce3473 1006 {
AzureIoTClient 4:e472f5ce3473 1007 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 4:e472f5ce3473 1008 result = NULL;
AzureIoTClient 4:e472f5ce3473 1009 }
AzureIoTClient 4:e472f5ce3473 1010 /* 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 4:e472f5ce3473 1011 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 4:e472f5ce3473 1012 {
AzureIoTClient 4:e472f5ce3473 1013 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 4:e472f5ce3473 1014 result = NULL;
AzureIoTClient 4:e472f5ce3473 1015 }
AzureIoTClient 4:e472f5ce3473 1016 /* 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 4:e472f5ce3473 1017 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 4:e472f5ce3473 1018 {
AzureIoTClient 4:e472f5ce3473 1019 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 4:e472f5ce3473 1020 result = NULL;
AzureIoTClient 4:e472f5ce3473 1021 }
AzureIoTClient 4:e472f5ce3473 1022 /* 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 4:e472f5ce3473 1023 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 4:e472f5ce3473 1024 {
AzureIoTClient 4:e472f5ce3473 1025 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 4:e472f5ce3473 1026 result = NULL;
AzureIoTClient 4:e472f5ce3473 1027 }
AzureIoTClient 7:7fdd306e6224 1028 /* 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 7:7fdd306e6224 1029 else if (strlen(config->upperConfig->iotHubName) == 0)
Azure.IoT Build 0:5e72a75c31b8 1030 {
AzureIoTClient 7:7fdd306e6224 1031 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT Build 0:5e72a75c31b8 1032 result = NULL;
Azure.IoT Build 0:5e72a75c31b8 1033 }
AzureIoTClient 7:7fdd306e6224 1034 else if ((g_msgTickCounter = tickcounter_create()) == NULL)
AzureIoTClient 4:e472f5ce3473 1035 {
AzureIoTClient 4:e472f5ce3473 1036 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 4:e472f5ce3473 1037 result = NULL;
AzureIoTClient 4:e472f5ce3473 1038 }
AzureIoTClient 4:e472f5ce3473 1039 else
AzureIoTClient 4:e472f5ce3473 1040 {
AzureIoTClient 4:e472f5ce3473 1041 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
AzureIoTClient 7:7fdd306e6224 1042 if (result == NULL)
AzureIoTClient 4:e472f5ce3473 1043 {
AzureIoTClient 7:7fdd306e6224 1044 tickcounter_destroy(g_msgTickCounter);
AzureIoTClient 4:e472f5ce3473 1045 }
AzureIoTClient 4:e472f5ce3473 1046 }
AzureIoTClient 4:e472f5ce3473 1047 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransportMqtt_Create shall return NULL.] */
AzureIoTClient 4:e472f5ce3473 1048 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransportMqtt_Create shall return a non-NULL value.] */
AzureIoTClient 4:e472f5ce3473 1049 return result;
Azure.IoT Build 0:5e72a75c31b8 1050 }
Azure.IoT Build 0:5e72a75c31b8 1051
AzureIoTClient 4:e472f5ce3473 1052 /*forward declaration*/
AzureIoTClient 4:e472f5ce3473 1053 static void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle);
AzureIoTClient 4:e472f5ce3473 1054
Azure.IoT Build 0:5e72a75c31b8 1055 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transportState)
Azure.IoT Build 0:5e72a75c31b8 1056 {
AzureIoTClient 4:e472f5ce3473 1057 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_013: [If the parameter subscribe is true then IoTHubTransportMqtt_Destroy shall call IoTHubTransportMqtt_Unsubscribe.] */
AzureIoTClient 4:e472f5ce3473 1058 if (transportState->subscribed)
AzureIoTClient 4:e472f5ce3473 1059 {
AzureIoTClient 4:e472f5ce3473 1060 IoTHubTransportMqtt_Unsubscribe(transportState);
AzureIoTClient 4:e472f5ce3473 1061 }
Azure.IoT Build 0:5e72a75c31b8 1062
AzureIoTClient 4:e472f5ce3473 1063 (void)mqtt_client_disconnect(transportState->mqttClient);
AzureIoTClient 4:e472f5ce3473 1064 xio_destroy(transportState->xioTransport);
AzureIoTClient 4:e472f5ce3473 1065 transportState->xioTransport = NULL;
Azure.IoT Build 0:5e72a75c31b8 1066
AzureIoTClient 4:e472f5ce3473 1067 transportState->connected = false;
AzureIoTClient 4:e472f5ce3473 1068 transportState->currPacketState = DISCONNECT_TYPE;
Azure.IoT Build 0:5e72a75c31b8 1069 }
Azure.IoT Build 0:5e72a75c31b8 1070
AzureIoTClient 4:e472f5ce3473 1071 static void IoTHubTransportMqtt_Destroy(TRANSPORT_LL_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 1072 {
AzureIoTClient 4:e472f5ce3473 1073 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 4:e472f5ce3473 1074 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 4:e472f5ce3473 1075 if (transportState != NULL)
AzureIoTClient 4:e472f5ce3473 1076 {
AzureIoTClient 4:e472f5ce3473 1077 transportState->destroyCalled = true;
Azure.IoT Build 0:5e72a75c31b8 1078
AzureIoTClient 4:e472f5ce3473 1079 DisconnectFromClient(transportState);
Azure.IoT Build 0:5e72a75c31b8 1080
AzureIoTClient 4:e472f5ce3473 1081 //Empty the Waiting for Ack Messages.
AzureIoTClient 4:e472f5ce3473 1082 while (!DList_IsListEmpty(&transportState->waitingForAck))
AzureIoTClient 4:e472f5ce3473 1083 {
AzureIoTClient 4:e472f5ce3473 1084 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
AzureIoTClient 4:e472f5ce3473 1085 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
Azure.IoT Build 5:73603e7a6542 1086 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 4:e472f5ce3473 1087 free(mqttMsgEntry);
AzureIoTClient 4:e472f5ce3473 1088 }
Azure.IoT Build 0:5e72a75c31b8 1089
AzureIoTClient 7:7fdd306e6224 1090 switch (transportState->transport_creds.credential_type)
AzureIoTClient 7:7fdd306e6224 1091 {
AzureIoTClient 7:7fdd306e6224 1092 case SAS_TOKEN_FROM_USER:
AzureIoTClient 7:7fdd306e6224 1093 STRING_delete(transportState->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 7:7fdd306e6224 1094 break;
AzureIoTClient 7:7fdd306e6224 1095 case DEVICE_KEY:
AzureIoTClient 7:7fdd306e6224 1096 STRING_delete(transportState->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 7:7fdd306e6224 1097 STRING_delete(transportState->devicesPath);
AzureIoTClient 7:7fdd306e6224 1098 break;
AzureIoTClient 7:7fdd306e6224 1099 case X509:
AzureIoTClient 7:7fdd306e6224 1100 default:
AzureIoTClient 7:7fdd306e6224 1101 break;
AzureIoTClient 7:7fdd306e6224 1102 }
AzureIoTClient 7:7fdd306e6224 1103
AzureIoTClient 4:e472f5ce3473 1104 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
AzureIoTClient 4:e472f5ce3473 1105 mqtt_client_deinit(transportState->mqttClient);
AzureIoTClient 4:e472f5ce3473 1106 STRING_delete(transportState->mqttEventTopic);
AzureIoTClient 4:e472f5ce3473 1107 STRING_delete(transportState->mqttMessageTopic);
AzureIoTClient 4:e472f5ce3473 1108 STRING_delete(transportState->device_id);
AzureIoTClient 4:e472f5ce3473 1109 STRING_delete(transportState->hostAddress);
AzureIoTClient 4:e472f5ce3473 1110 STRING_delete(transportState->configPassedThroughUsername);
AzureIoTClient 4:e472f5ce3473 1111 tickcounter_destroy(g_msgTickCounter);
AzureIoTClient 4:e472f5ce3473 1112 free(transportState);
AzureIoTClient 4:e472f5ce3473 1113 }
Azure.IoT Build 0:5e72a75c31b8 1114 }
Azure.IoT Build 0:5e72a75c31b8 1115
AzureIoTClient 4:e472f5ce3473 1116 static int IoTHubTransportMqtt_Subscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 1117 {
AzureIoTClient 4:e472f5ce3473 1118 int result;
AzureIoTClient 4:e472f5ce3473 1119 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 4:e472f5ce3473 1120 if (transportState == NULL)
AzureIoTClient 4:e472f5ce3473 1121 {
AzureIoTClient 4:e472f5ce3473 1122 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
AzureIoTClient 4:e472f5ce3473 1123 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 4:e472f5ce3473 1124 result = __LINE__;
AzureIoTClient 4:e472f5ce3473 1125 }
AzureIoTClient 4:e472f5ce3473 1126 else
AzureIoTClient 4:e472f5ce3473 1127 {
AzureIoTClient 4:e472f5ce3473 1128 /* 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 4:e472f5ce3473 1129 transportState->receiveMessages = true;
AzureIoTClient 4:e472f5ce3473 1130 /* 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 4:e472f5ce3473 1131 if (transportState->currPacketState != CONNACK_TYPE &&
AzureIoTClient 4:e472f5ce3473 1132 transportState->currPacketState != CONNECT_TYPE &&
AzureIoTClient 4:e472f5ce3473 1133 transportState->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 4:e472f5ce3473 1134 transportState->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 4:e472f5ce3473 1135 {
AzureIoTClient 4:e472f5ce3473 1136 transportState->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 4:e472f5ce3473 1137 }
AzureIoTClient 4:e472f5ce3473 1138 result = 0;
AzureIoTClient 4:e472f5ce3473 1139 }
AzureIoTClient 4:e472f5ce3473 1140 return result;
Azure.IoT Build 0:5e72a75c31b8 1141 }
Azure.IoT Build 0:5e72a75c31b8 1142
AzureIoTClient 4:e472f5ce3473 1143 static void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
Azure.IoT Build 0:5e72a75c31b8 1144 {
AzureIoTClient 4:e472f5ce3473 1145 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 4:e472f5ce3473 1146 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
AzureIoTClient 4:e472f5ce3473 1147 if (transportState != NULL && transportState->subscribed)
AzureIoTClient 4:e472f5ce3473 1148 {
AzureIoTClient 4:e472f5ce3473 1149 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
AzureIoTClient 6:16875b609849 1150 const char* unsubscribe[1];
AzureIoTClient 6:16875b609849 1151 unsubscribe[0] = STRING_c_str(transportState->mqttMessageTopic);
AzureIoTClient 6:16875b609849 1152 (void)mqtt_client_unsubscribe(transportState->mqttClient, get_next_packet_id(transportState), unsubscribe, 1);
AzureIoTClient 4:e472f5ce3473 1153 transportState->subscribed = false;
AzureIoTClient 4:e472f5ce3473 1154 transportState->receiveMessages = false;
AzureIoTClient 4:e472f5ce3473 1155 }
AzureIoTClient 4:e472f5ce3473 1156 else
AzureIoTClient 4:e472f5ce3473 1157 {
AzureIoTClient 4:e472f5ce3473 1158 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 4:e472f5ce3473 1159 }
Azure.IoT Build 0:5e72a75c31b8 1160 }
Azure.IoT Build 0:5e72a75c31b8 1161
AzureIoTClient 4:e472f5ce3473 1162 static void IoTHubTransportMqtt_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
Azure.IoT Build 0:5e72a75c31b8 1163 {
AzureIoTClient 4:e472f5ce3473 1164 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransportMqtt_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
AzureIoTClient 4:e472f5ce3473 1165 PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 4:e472f5ce3473 1166 if (transportState != NULL && iotHubClientHandle != NULL)
AzureIoTClient 4:e472f5ce3473 1167 {
AzureIoTClient 4:e472f5ce3473 1168 transportState->llClientHandle = iotHubClientHandle;
Azure.IoT Build 0:5e72a75c31b8 1169
AzureIoTClient 4:e472f5ce3473 1170 if (InitializeConnection(transportState) != 0)
AzureIoTClient 4:e472f5ce3473 1171 {
AzureIoTClient 4:e472f5ce3473 1172 // Don't want to flood the logs with failures here
AzureIoTClient 4:e472f5ce3473 1173 }
AzureIoTClient 4:e472f5ce3473 1174 else
AzureIoTClient 4:e472f5ce3473 1175 {
AzureIoTClient 4:e472f5ce3473 1176 if (transportState->currPacketState == CONNACK_TYPE || transportState->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 4:e472f5ce3473 1177 {
AzureIoTClient 4:e472f5ce3473 1178 (void)SubscribeToMqttProtocol(transportState);
AzureIoTClient 4:e472f5ce3473 1179 }
AzureIoTClient 4:e472f5ce3473 1180 else if (transportState->currPacketState == SUBACK_TYPE)
AzureIoTClient 4:e472f5ce3473 1181 {
AzureIoTClient 4:e472f5ce3473 1182 // Publish can be called now
AzureIoTClient 4:e472f5ce3473 1183 transportState->currPacketState = PUBLISH_TYPE;
AzureIoTClient 4:e472f5ce3473 1184 }
AzureIoTClient 4:e472f5ce3473 1185 else if (transportState->currPacketState == PUBLISH_TYPE)
AzureIoTClient 4:e472f5ce3473 1186 {
AzureIoTClient 4:e472f5ce3473 1187 PDLIST_ENTRY currentListEntry = transportState->waitingForAck.Flink;
AzureIoTClient 4:e472f5ce3473 1188 while (currentListEntry != &transportState->waitingForAck)
AzureIoTClient 4:e472f5ce3473 1189 {
AzureIoTClient 4:e472f5ce3473 1190 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 4:e472f5ce3473 1191 DLIST_ENTRY nextListEntry;
AzureIoTClient 4:e472f5ce3473 1192 nextListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1193
AzureIoTClient 4:e472f5ce3473 1194 uint64_t current_ms;
AzureIoTClient 4:e472f5ce3473 1195 (void)tickcounter_get_current_ms(g_msgTickCounter, &current_ms);
AzureIoTClient 4:e472f5ce3473 1196 /* 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 4:e472f5ce3473 1197 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 4:e472f5ce3473 1198 {
AzureIoTClient 4:e472f5ce3473 1199 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransportMqtt_DoWork has resent the message two times then it shall fail the message] */
AzureIoTClient 4:e472f5ce3473 1200 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 4:e472f5ce3473 1201 {
AzureIoTClient 4:e472f5ce3473 1202 (void)DList_RemoveEntryList(currentListEntry);
Azure.IoT Build 5:73603e7a6542 1203 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 4:e472f5ce3473 1204 free(mqttMsgEntry);
AzureIoTClient 4:e472f5ce3473 1205 }
AzureIoTClient 4:e472f5ce3473 1206 else
AzureIoTClient 4:e472f5ce3473 1207 {
AzureIoTClient 4:e472f5ce3473 1208 size_t messageLength;
AzureIoTClient 4:e472f5ce3473 1209 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 4:e472f5ce3473 1210 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 4:e472f5ce3473 1211 {
AzureIoTClient 4:e472f5ce3473 1212 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 4:e472f5ce3473 1213 }
AzureIoTClient 4:e472f5ce3473 1214 else
AzureIoTClient 4:e472f5ce3473 1215 {
AzureIoTClient 4:e472f5ce3473 1216 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 4:e472f5ce3473 1217 {
AzureIoTClient 4:e472f5ce3473 1218 (void)DList_RemoveEntryList(currentListEntry);
Azure.IoT Build 5:73603e7a6542 1219 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 4:e472f5ce3473 1220 free(mqttMsgEntry);
AzureIoTClient 4:e472f5ce3473 1221 }
AzureIoTClient 4:e472f5ce3473 1222 }
AzureIoTClient 4:e472f5ce3473 1223 }
AzureIoTClient 4:e472f5ce3473 1224 }
AzureIoTClient 4:e472f5ce3473 1225 currentListEntry = nextListEntry.Flink;
AzureIoTClient 4:e472f5ce3473 1226 }
Azure.IoT Build 0:5e72a75c31b8 1227
AzureIoTClient 4:e472f5ce3473 1228 currentListEntry = transportState->waitingToSend->Flink;
AzureIoTClient 4:e472f5ce3473 1229 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
AzureIoTClient 4:e472f5ce3473 1230 while (currentListEntry != transportState->waitingToSend)
AzureIoTClient 4:e472f5ce3473 1231 {
AzureIoTClient 4:e472f5ce3473 1232 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 4:e472f5ce3473 1233 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 4:e472f5ce3473 1234 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
Azure.IoT Build 0:5e72a75c31b8 1235
AzureIoTClient 4:e472f5ce3473 1236 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the “waitingToSend” DLIST passed in config structure.] */
AzureIoTClient 4:e472f5ce3473 1237 size_t messageLength;
AzureIoTClient 4:e472f5ce3473 1238 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 4:e472f5ce3473 1239 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 4:e472f5ce3473 1240 {
AzureIoTClient 4:e472f5ce3473 1241 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 4:e472f5ce3473 1242 }
AzureIoTClient 4:e472f5ce3473 1243 else
AzureIoTClient 4:e472f5ce3473 1244 {
AzureIoTClient 4:e472f5ce3473 1245 /* 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 4:e472f5ce3473 1246 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 4:e472f5ce3473 1247 if (mqttMsgEntry == NULL)
AzureIoTClient 4:e472f5ce3473 1248 {
AzureIoTClient 4:e472f5ce3473 1249 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 4:e472f5ce3473 1250 }
AzureIoTClient 4:e472f5ce3473 1251 else
AzureIoTClient 4:e472f5ce3473 1252 {
AzureIoTClient 4:e472f5ce3473 1253 mqttMsgEntry->retryCount = 0;
AzureIoTClient 4:e472f5ce3473 1254 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 4:e472f5ce3473 1255 if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 4:e472f5ce3473 1256 {
AzureIoTClient 4:e472f5ce3473 1257 (void)(DList_RemoveEntryList(currentListEntry));
Azure.IoT Build 5:73603e7a6542 1258 sendMsgComplete(iothubMsgList, transportState, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 4:e472f5ce3473 1259 free(mqttMsgEntry);
AzureIoTClient 4:e472f5ce3473 1260 }
AzureIoTClient 4:e472f5ce3473 1261 else
AzureIoTClient 4:e472f5ce3473 1262 {
AzureIoTClient 4:e472f5ce3473 1263 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 4:e472f5ce3473 1264 DList_InsertTailList(&(transportState->waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 4:e472f5ce3473 1265 }
AzureIoTClient 4:e472f5ce3473 1266 }
AzureIoTClient 4:e472f5ce3473 1267 }
AzureIoTClient 4:e472f5ce3473 1268 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 4:e472f5ce3473 1269 }
AzureIoTClient 4:e472f5ce3473 1270 }
AzureIoTClient 4:e472f5ce3473 1271 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransportMqtt_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
AzureIoTClient 4:e472f5ce3473 1272 mqtt_client_dowork(transportState->mqttClient);
AzureIoTClient 4:e472f5ce3473 1273 }
AzureIoTClient 4:e472f5ce3473 1274 }
Azure.IoT Build 0:5e72a75c31b8 1275 }
Azure.IoT Build 0:5e72a75c31b8 1276
AzureIoTClient 4:e472f5ce3473 1277 static IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
Azure.IoT Build 0:5e72a75c31b8 1278 {
AzureIoTClient 4:e472f5ce3473 1279 IOTHUB_CLIENT_RESULT result;
Azure.IoT Build 0:5e72a75c31b8 1280
AzureIoTClient 4:e472f5ce3473 1281 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 4:e472f5ce3473 1282 {
AzureIoTClient 4:e472f5ce3473 1283 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
AzureIoTClient 4:e472f5ce3473 1284 LogError("invalid arument.");
AzureIoTClient 4:e472f5ce3473 1285 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 4:e472f5ce3473 1286 }
AzureIoTClient 4:e472f5ce3473 1287 else
AzureIoTClient 4:e472f5ce3473 1288 {
AzureIoTClient 4:e472f5ce3473 1289 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 4:e472f5ce3473 1290 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->waitingForAck)))
AzureIoTClient 4:e472f5ce3473 1291 {
AzureIoTClient 4:e472f5ce3473 1292 /* 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 4:e472f5ce3473 1293 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 4:e472f5ce3473 1294 }
AzureIoTClient 4:e472f5ce3473 1295 else
AzureIoTClient 4:e472f5ce3473 1296 {
AzureIoTClient 4:e472f5ce3473 1297 /* 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 4:e472f5ce3473 1298 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 4:e472f5ce3473 1299 }
AzureIoTClient 4:e472f5ce3473 1300 result = IOTHUB_CLIENT_OK;
AzureIoTClient 4:e472f5ce3473 1301 }
AzureIoTClient 4:e472f5ce3473 1302 return result;
Azure.IoT Build 0:5e72a75c31b8 1303 }
Azure.IoT Build 0:5e72a75c31b8 1304
AzureIoTClient 4:e472f5ce3473 1305 static IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
Azure.IoT Build 0:5e72a75c31b8 1306 {
AzureIoTClient 4:e472f5ce3473 1307 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
AzureIoTClient 4:e472f5ce3473 1308 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 4:e472f5ce3473 1309 if (
AzureIoTClient 4:e472f5ce3473 1310 (handle == NULL) ||
AzureIoTClient 4:e472f5ce3473 1311 (option == NULL) ||
AzureIoTClient 4:e472f5ce3473 1312 (value == NULL)
AzureIoTClient 4:e472f5ce3473 1313 )
AzureIoTClient 4:e472f5ce3473 1314 {
AzureIoTClient 4:e472f5ce3473 1315 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 4:e472f5ce3473 1316 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 4:e472f5ce3473 1317 }
AzureIoTClient 4:e472f5ce3473 1318 else
AzureIoTClient 4:e472f5ce3473 1319 {
AzureIoTClient 4:e472f5ce3473 1320 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 4:e472f5ce3473 1321 /* 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 4:e472f5ce3473 1322 if (strcmp("logtrace", option) == 0)
AzureIoTClient 4:e472f5ce3473 1323 {
AzureIoTClient 4:e472f5ce3473 1324 bool* traceVal = (bool*)value;
AzureIoTClient 4:e472f5ce3473 1325 mqtt_client_set_trace(transportState->mqttClient, *traceVal, *traceVal);
AzureIoTClient 4:e472f5ce3473 1326 result = IOTHUB_CLIENT_OK;
AzureIoTClient 4:e472f5ce3473 1327 }
AzureIoTClient 4:e472f5ce3473 1328 else if (strcmp("keepalive", option) == 0)
AzureIoTClient 4:e472f5ce3473 1329 {
AzureIoTClient 4:e472f5ce3473 1330 /* 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 4:e472f5ce3473 1331 int* keepAliveOption = (int*)value;
AzureIoTClient 4:e472f5ce3473 1332 /* 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 4:e472f5ce3473 1333 if (*keepAliveOption != transportState->keepAliveValue)
AzureIoTClient 4:e472f5ce3473 1334 {
AzureIoTClient 6:16875b609849 1335 transportState->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 4:e472f5ce3473 1336 if (transportState->connected)
AzureIoTClient 4:e472f5ce3473 1337 {
AzureIoTClient 4:e472f5ce3473 1338 /* 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 4:e472f5ce3473 1339 DisconnectFromClient(transportState);
AzureIoTClient 4:e472f5ce3473 1340 }
AzureIoTClient 4:e472f5ce3473 1341 }
AzureIoTClient 4:e472f5ce3473 1342 result = IOTHUB_CLIENT_OK;
AzureIoTClient 4:e472f5ce3473 1343 }
AzureIoTClient 7:7fdd306e6224 1344 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 7:7fdd306e6224 1345 else if ((strcmp("x509certificate", option) == 0) && (transportState->transport_creds.credential_type != X509))
AzureIoTClient 7:7fdd306e6224 1346 {
AzureIoTClient 7:7fdd306e6224 1347 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 7:7fdd306e6224 1348 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 7:7fdd306e6224 1349 }
AzureIoTClient 7:7fdd306e6224 1350 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_040: [If the option parameter is set to "x509privatekey" then the value shall be a const char of the RSA Private Key to be used for x509.] */
AzureIoTClient 7:7fdd306e6224 1351 else if ((strcmp("x509privatekey", option) == 0) && (transportState->transport_creds.credential_type != X509))
AzureIoTClient 7:7fdd306e6224 1352 {
AzureIoTClient 7:7fdd306e6224 1353 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 7:7fdd306e6224 1354 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 7:7fdd306e6224 1355 }
AzureIoTClient 4:e472f5ce3473 1356 else
AzureIoTClient 4:e472f5ce3473 1357 {
AzureIoTClient 4:e472f5ce3473 1358 /* 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 4:e472f5ce3473 1359 if (GetTransportProviderIfNecessary(transportState) == 0)
AzureIoTClient 4:e472f5ce3473 1360 {
AzureIoTClient 4:e472f5ce3473 1361 if (xio_setoption(transportState->xioTransport, option, value) == 0)
AzureIoTClient 4:e472f5ce3473 1362 {
AzureIoTClient 4:e472f5ce3473 1363 result = IOTHUB_CLIENT_OK;
AzureIoTClient 4:e472f5ce3473 1364 }
AzureIoTClient 4:e472f5ce3473 1365 else
AzureIoTClient 4:e472f5ce3473 1366 {
AzureIoTClient 4:e472f5ce3473 1367 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 4:e472f5ce3473 1368 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 4:e472f5ce3473 1369 }
AzureIoTClient 4:e472f5ce3473 1370 }
AzureIoTClient 4:e472f5ce3473 1371 else
AzureIoTClient 4:e472f5ce3473 1372 {
AzureIoTClient 4:e472f5ce3473 1373 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 4:e472f5ce3473 1374 }
AzureIoTClient 4:e472f5ce3473 1375 }
AzureIoTClient 4:e472f5ce3473 1376 }
AzureIoTClient 4:e472f5ce3473 1377 return result;
Azure.IoT Build 0:5e72a75c31b8 1378 }
Azure.IoT Build 0:5e72a75c31b8 1379
AzureIoTClient 4:e472f5ce3473 1380 static 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 1381 {
AzureIoTClient 7:7fdd306e6224 1382 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 6:16875b609849 1383 (void)iotHubClientHandle;
AzureIoTClient 6:16875b609849 1384
AzureIoTClient 4:e472f5ce3473 1385 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransportMqtt_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 4:e472f5ce3473 1386 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransportMqtt_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 4:e472f5ce3473 1387 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 4:e472f5ce3473 1388 {
AzureIoTClient 3:40f482ed0be8 1389 LogError("IoTHubTransportMqtt_Register: handle, device or waitingToSend is NULL.");
Azure.IoT Build 0:5e72a75c31b8 1390 result = NULL;
AzureIoTClient 4:e472f5ce3473 1391 }
AzureIoTClient 4:e472f5ce3473 1392 else
AzureIoTClient 4:e472f5ce3473 1393 {
AzureIoTClient 4:e472f5ce3473 1394 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
Azure.IoT Build 0:5e72a75c31b8 1395
AzureIoTClient 4:e472f5ce3473 1396 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransportMqtt_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
AzureIoTClient 4:e472f5ce3473 1397 if (device->deviceId == NULL)
AzureIoTClient 4:e472f5ce3473 1398 {
AzureIoTClient 3:40f482ed0be8 1399 LogError("IoTHubTransportMqtt_Register: deviceId is NULL.");
AzureIoTClient 3:40f482ed0be8 1400 result = NULL;
AzureIoTClient 4:e472f5ce3473 1401 }
AzureIoTClient 4:e472f5ce3473 1402 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransportMqtt_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 4:e472f5ce3473 1403 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 4:e472f5ce3473 1404 {
AzureIoTClient 3:40f482ed0be8 1405 LogError("IoTHubTransportMqtt_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
Azure.IoT Build 0:5e72a75c31b8 1406 result = NULL;
AzureIoTClient 4:e472f5ce3473 1407 }
AzureIoTClient 4:e472f5ce3473 1408 else
AzureIoTClient 4:e472f5ce3473 1409 {
AzureIoTClient 4:e472f5ce3473 1410 // 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 4:e472f5ce3473 1411 if (strcmp(STRING_c_str(transportState->device_id), device->deviceId) != 0)
AzureIoTClient 4:e472f5ce3473 1412 {
AzureIoTClient 3:40f482ed0be8 1413 LogError("IoTHubTransportMqtt_Register: deviceId does not match.");
AzureIoTClient 3:40f482ed0be8 1414 result = NULL;
AzureIoTClient 4:e472f5ce3473 1415 }
AzureIoTClient 7:7fdd306e6224 1416 else if ( (transportState->transport_creds.credential_type == DEVICE_KEY) && (strcmp(STRING_c_str(transportState->transport_creds.CREDENTIAL_VALUE.deviceKey), device->deviceKey) != 0))
AzureIoTClient 4:e472f5ce3473 1417 {
AzureIoTClient 3:40f482ed0be8 1418 LogError("IoTHubTransportMqtt_Register: deviceKey does not match.");
Azure.IoT Build 0:5e72a75c31b8 1419 result = NULL;
AzureIoTClient 4:e472f5ce3473 1420 }
AzureIoTClient 4:e472f5ce3473 1421 else
AzureIoTClient 4:e472f5ce3473 1422 {
AzureIoTClient 4:e472f5ce3473 1423 if (transportState->isRegistered == true)
AzureIoTClient 4:e472f5ce3473 1424 {
AzureIoTClient 4:e472f5ce3473 1425 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 4:e472f5ce3473 1426 result = NULL;
AzureIoTClient 4:e472f5ce3473 1427 }
AzureIoTClient 4:e472f5ce3473 1428 else
AzureIoTClient 4:e472f5ce3473 1429 {
AzureIoTClient 4:e472f5ce3473 1430 transportState->isRegistered = true;
AzureIoTClient 4:e472f5ce3473 1431 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransportMqtt_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
AzureIoTClient 4:e472f5ce3473 1432 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 4:e472f5ce3473 1433 }
AzureIoTClient 4:e472f5ce3473 1434 }
AzureIoTClient 4:e472f5ce3473 1435 }
AzureIoTClient 4:e472f5ce3473 1436 }
Azure.IoT Build 0:5e72a75c31b8 1437
AzureIoTClient 4:e472f5ce3473 1438 return result;
Azure.IoT Build 0:5e72a75c31b8 1439 }
Azure.IoT Build 0:5e72a75c31b8 1440
Azure.IoT Build 0:5e72a75c31b8 1441 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ IoTHubTransportMqtt_Unregister shall return. ]
AzureIoTClient 4:e472f5ce3473 1442 static void IoTHubTransportMqtt_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
Azure.IoT Build 0:5e72a75c31b8 1443 {
AzureIoTClient 4:e472f5ce3473 1444 if (deviceHandle != NULL)
AzureIoTClient 4:e472f5ce3473 1445 {
AzureIoTClient 4:e472f5ce3473 1446 MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
Azure.IoT Build 0:5e72a75c31b8 1447
AzureIoTClient 4:e472f5ce3473 1448 transportState->isRegistered = false;
AzureIoTClient 4:e472f5ce3473 1449 }
Azure.IoT Build 0:5e72a75c31b8 1450 }
Azure.IoT Build 0:5e72a75c31b8 1451
AzureIoTClient 4:e472f5ce3473 1452 static STRING_HANDLE IoTHubTransportMqtt_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 4:e472f5ce3473 1453 {
AzureIoTClient 4:e472f5ce3473 1454 STRING_HANDLE result;
AzureIoTClient 4:e472f5ce3473 1455 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransportMqtt_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 4:e472f5ce3473 1456 if (handle == NULL)
AzureIoTClient 4:e472f5ce3473 1457 {
AzureIoTClient 4:e472f5ce3473 1458 result = NULL;
AzureIoTClient 4:e472f5ce3473 1459 }
AzureIoTClient 4:e472f5ce3473 1460 else
AzureIoTClient 4:e472f5ce3473 1461 {
AzureIoTClient 4:e472f5ce3473 1462 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransportMqtt_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
AzureIoTClient 4:e472f5ce3473 1463 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 4:e472f5ce3473 1464 }
AzureIoTClient 4:e472f5ce3473 1465 return result;
AzureIoTClient 4:e472f5ce3473 1466 }
AzureIoTClient 4:e472f5ce3473 1467
AzureIoTClient 4:e472f5ce3473 1468 static TRANSPORT_PROVIDER myfunc = {
AzureIoTClient 4:e472f5ce3473 1469 IoTHubTransportMqtt_GetHostname,
AzureIoTClient 4:e472f5ce3473 1470 IoTHubTransportMqtt_SetOption,
AzureIoTClient 4:e472f5ce3473 1471 IoTHubTransportMqtt_Create,
AzureIoTClient 4:e472f5ce3473 1472 IoTHubTransportMqtt_Destroy,
AzureIoTClient 4:e472f5ce3473 1473 IoTHubTransportMqtt_Register,
AzureIoTClient 4:e472f5ce3473 1474 IoTHubTransportMqtt_Unregister,
AzureIoTClient 4:e472f5ce3473 1475 IoTHubTransportMqtt_Subscribe,
AzureIoTClient 4:e472f5ce3473 1476 IoTHubTransportMqtt_Unsubscribe,
AzureIoTClient 4:e472f5ce3473 1477 IoTHubTransportMqtt_DoWork,
AzureIoTClient 4:e472f5ce3473 1478 IoTHubTransportMqtt_GetSendStatus
Azure.IoT Build 0:5e72a75c31b8 1479 };
Azure.IoT Build 0:5e72a75c31b8 1480
Azure.IoT Build 0:5e72a75c31b8 1481 /* 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 1482 IoTHubTransport_Destroy = IoTHubTransportMqtt_Destroy
Azure.IoT Build 0:5e72a75c31b8 1483 IoTHubTransport_Subscribe = IoTHubTransportMqtt_Subscribe
Azure.IoT Build 0:5e72a75c31b8 1484 IoTHubTransport_Unsubscribe = IoTHubTransportMqtt_Unsubscribe
Azure.IoT Build 0:5e72a75c31b8 1485 IoTHubTransport_DoWork = IoTHubTransportMqtt_DoWork
Azure.IoT Build 0:5e72a75c31b8 1486 IoTHubTransport_SetOption = IoTHubTransportMqtt_SetOption] */
AzureIoTClient 4:e472f5ce3473 1487 extern const TRANSPORT_PROVIDER* MQTT_Protocol(void)
Azure.IoT Build 0:5e72a75c31b8 1488 {
AzureIoTClient 4:e472f5ce3473 1489 return &myfunc;
Azure.IoT Build 0:5e72a75c31b8 1490 }