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

iothubtransport_mqtt_common.c@13:606465879c57, 2016-12-14 (annotated)

Committer:
Azure.IoT.Build
Date:
Wed Dec 14 15:59:37 2016 -0800
Revision:
13:606465879c57
Parent:
12:658ca6865de2
Child:
14:4dc2b011be33
1.1.2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 11:31ebaeb51e1e 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 11:31ebaeb51e1e 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 11:31ebaeb51e1e 3
AzureIoTClient 11:31ebaeb51e1e 4 #include <stdlib.h>
AzureIoTClient 11:31ebaeb51e1e 5 #ifdef _CRTDBG_MAP_ALLOC
AzureIoTClient 11:31ebaeb51e1e 6 #include <crtdbg.h>
AzureIoTClient 11:31ebaeb51e1e 7 #endif
AzureIoTClient 12:658ca6865de2 8 #include <ctype.h>
AzureIoTClient 11:31ebaeb51e1e 9 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 11:31ebaeb51e1e 10
AzureIoTClient 11:31ebaeb51e1e 11 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 11:31ebaeb51e1e 12 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 11:31ebaeb51e1e 13 #include "azure_c_shared_utility/doublylinkedlist.h"
AzureIoTClient 11:31ebaeb51e1e 14 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 11:31ebaeb51e1e 15
AzureIoTClient 11:31ebaeb51e1e 16 #include "iothub_client_ll.h"
AzureIoTClient 11:31ebaeb51e1e 17 #include "iothub_client_options.h"
AzureIoTClient 11:31ebaeb51e1e 18 #include "iothub_client_private.h"
AzureIoTClient 11:31ebaeb51e1e 19 #include "azure_umqtt_c/mqtt_client.h"
AzureIoTClient 11:31ebaeb51e1e 20 #include "azure_c_shared_utility/sastoken.h"
AzureIoTClient 11:31ebaeb51e1e 21 #include "azure_c_shared_utility/tickcounter.h"
AzureIoTClient 11:31ebaeb51e1e 22
AzureIoTClient 11:31ebaeb51e1e 23 #include "azure_c_shared_utility/tlsio.h"
AzureIoTClient 11:31ebaeb51e1e 24 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 11:31ebaeb51e1e 25
AzureIoTClient 11:31ebaeb51e1e 26 #include "azure_c_shared_utility/string_tokenizer.h"
AzureIoTClient 11:31ebaeb51e1e 27 #include "iothub_client_version.h"
AzureIoTClient 11:31ebaeb51e1e 28
AzureIoTClient 11:31ebaeb51e1e 29 #include "iothubtransport_mqtt_common.h"
AzureIoTClient 11:31ebaeb51e1e 30
AzureIoTClient 11:31ebaeb51e1e 31 #include <stdarg.h>
AzureIoTClient 11:31ebaeb51e1e 32 #include <stdio.h>
AzureIoTClient 11:31ebaeb51e1e 33
AzureIoTClient 11:31ebaeb51e1e 34 #include <limits.h>
AzureIoTClient 12:658ca6865de2 35 #include <inttypes.h>
AzureIoTClient 11:31ebaeb51e1e 36
AzureIoTClient 11:31ebaeb51e1e 37 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 11:31ebaeb51e1e 38 #define SAS_REFRESH_MULTIPLIER .8
AzureIoTClient 11:31ebaeb51e1e 39 #define EPOCH_TIME_T_VALUE 0
AzureIoTClient 11:31ebaeb51e1e 40 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
AzureIoTClient 11:31ebaeb51e1e 41 #define BUILD_CONFIG_USERNAME 24
AzureIoTClient 11:31ebaeb51e1e 42 #define SAS_TOKEN_DEFAULT_LEN 10
AzureIoTClient 11:31ebaeb51e1e 43 #define RESEND_TIMEOUT_VALUE_MIN 1*60
AzureIoTClient 11:31ebaeb51e1e 44 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 11:31ebaeb51e1e 45 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 11:31ebaeb51e1e 46 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 12:658ca6865de2 47 #define STATUS_CODE_FAILURE_VALUE 500
AzureIoTClient 12:658ca6865de2 48 #define STATUS_CODE_TIMEOUT_VALUE 408
AzureIoTClient 12:658ca6865de2 49 #define ERROR_TIME_FOR_RETRY_SECS 5
AzureIoTClient 12:658ca6865de2 50 #define WAIT_TIME_SECS (ERROR_TIME_FOR_RETRY_SECS - 1)
AzureIoTClient 12:658ca6865de2 51
AzureIoTClient 12:658ca6865de2 52 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 53 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 54
AzureIoTClient 12:658ca6865de2 55 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 56 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 57
AzureIoTClient 11:31ebaeb51e1e 58 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 59 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 60
AzureIoTClient 12:658ca6865de2 61 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 62 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 63
AzureIoTClient 12:658ca6865de2 64 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 65
AzureIoTClient 11:31ebaeb51e1e 66 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 67 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 68 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 69 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 70
AzureIoTClient 12:658ca6865de2 71 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 72
AzureIoTClient 11:31ebaeb51e1e 73 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 74 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 75 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 76 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 77 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 78 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 79 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 80
AzureIoTClient 11:31ebaeb51e1e 81 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 82 {
AzureIoTClient 11:31ebaeb51e1e 83 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 84 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 85 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 86
AzureIoTClient 11:31ebaeb51e1e 87 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 88 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 89 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 90 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 91 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 92 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 93 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 94 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 95 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 96 };
AzureIoTClient 11:31ebaeb51e1e 97
AzureIoTClient 12:658ca6865de2 98 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 99 {
AzureIoTClient 12:658ca6865de2 100 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 101 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 102 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 103
AzureIoTClient 11:31ebaeb51e1e 104 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 105 {
AzureIoTClient 11:31ebaeb51e1e 106 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 107 X509,
AzureIoTClient 11:31ebaeb51e1e 108 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 109 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 110 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 111
AzureIoTClient 12:658ca6865de2 112 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 113
AzureIoTClient 12:658ca6865de2 114 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 115 {
AzureIoTClient 12:658ca6865de2 116 IOTHUB_CLIENT_RETRY_POLICY retryPolicy;
AzureIoTClient 12:658ca6865de2 117 size_t retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 118 RETRY_POLICY fnRetryPolicy;
AzureIoTClient 12:658ca6865de2 119 time_t start;
AzureIoTClient 12:658ca6865de2 120 time_t stop;
AzureIoTClient 12:658ca6865de2 121 time_t lastConnect;
AzureIoTClient 12:658ca6865de2 122 bool retryStarted;
AzureIoTClient 12:658ca6865de2 123 bool retryExpired;
AzureIoTClient 12:658ca6865de2 124 bool firstAttempt;
AzureIoTClient 12:658ca6865de2 125 size_t retrycount;
AzureIoTClient 12:658ca6865de2 126 size_t delayFromLastConnectToRetry;
AzureIoTClient 12:658ca6865de2 127 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 128
AzureIoTClient 11:31ebaeb51e1e 129 typedef struct MQTT_TRANSPORT_CREDENTIALS_TAG
AzureIoTClient 11:31ebaeb51e1e 130 {
AzureIoTClient 11:31ebaeb51e1e 131 MQTT_TRANSPORT_CREDENTIAL_TYPE credential_type;
AzureIoTClient 11:31ebaeb51e1e 132 union
AzureIoTClient 11:31ebaeb51e1e 133 {
AzureIoTClient 11:31ebaeb51e1e 134 // Key associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 135 STRING_HANDLE deviceKey;
AzureIoTClient 11:31ebaeb51e1e 136
AzureIoTClient 11:31ebaeb51e1e 137 // SAS associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 138 STRING_HANDLE deviceSasToken;
AzureIoTClient 11:31ebaeb51e1e 139
AzureIoTClient 11:31ebaeb51e1e 140 } CREDENTIAL_VALUE;
AzureIoTClient 11:31ebaeb51e1e 141 } MQTT_TRANSPORT_CREDENTIALS;
AzureIoTClient 11:31ebaeb51e1e 142
AzureIoTClient 11:31ebaeb51e1e 143 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 144 {
AzureIoTClient 11:31ebaeb51e1e 145 // Topic control
AzureIoTClient 11:31ebaeb51e1e 146 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 147 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 148 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 149 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 150
AzureIoTClient 12:658ca6865de2 151 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 152
AzureIoTClient 11:31ebaeb51e1e 153 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 154
AzureIoTClient 11:31ebaeb51e1e 155 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 156 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 157 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 158 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 159 int portNum;
AzureIoTClient 11:31ebaeb51e1e 160
AzureIoTClient 11:31ebaeb51e1e 161 // Authentication
AzureIoTClient 11:31ebaeb51e1e 162 MQTT_TRANSPORT_CREDENTIALS transport_creds;
AzureIoTClient 11:31ebaeb51e1e 163
AzureIoTClient 11:31ebaeb51e1e 164 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 165
AzureIoTClient 11:31ebaeb51e1e 166 // 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 11:31ebaeb51e1e 167 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 168 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 169 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 170 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 171 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 172 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 173
AzureIoTClient 11:31ebaeb51e1e 174 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 175 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 176
AzureIoTClient 11:31ebaeb51e1e 177 // Protocol
AzureIoTClient 11:31ebaeb51e1e 178 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 179 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 180
AzureIoTClient 11:31ebaeb51e1e 181 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 182 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 183
AzureIoTClient 11:31ebaeb51e1e 184 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 185 bool isRegistered;
AzureIoTClient 11:31ebaeb51e1e 186 bool isConnected;
AzureIoTClient 11:31ebaeb51e1e 187 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 188 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 189 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 190 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 191 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 192 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 193 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 194 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 195 bool raw_trace;
Azure.IoT.Build 13:606465879c57 196 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 197
AzureIoTClient 11:31ebaeb51e1e 198 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 199 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 200 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 201
AzureIoTClient 11:31ebaeb51e1e 202 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 203 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 204
AzureIoTClient 11:31ebaeb51e1e 205 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 206 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 207
AzureIoTClient 12:658ca6865de2 208 //Retry Logic
AzureIoTClient 12:658ca6865de2 209 RETRY_LOGIC* retryLogic;
AzureIoTClient 11:31ebaeb51e1e 210 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
AzureIoTClient 11:31ebaeb51e1e 211
AzureIoTClient 12:658ca6865de2 212 typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
AzureIoTClient 12:658ca6865de2 213 {
Azure.IoT.Build 13:606465879c57 214 tickcounter_ms_t msgPublishTime;
AzureIoTClient 12:658ca6865de2 215 size_t retryCount;
AzureIoTClient 12:658ca6865de2 216 IOTHUB_IDENTITY_TYPE iothub_type;
AzureIoTClient 12:658ca6865de2 217 uint16_t packet_id;
AzureIoTClient 12:658ca6865de2 218 uint32_t iothub_msg_id;
AzureIoTClient 12:658ca6865de2 219 IOTHUB_DEVICE_TWIN* device_twin_data;
AzureIoTClient 12:658ca6865de2 220 DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
AzureIoTClient 12:658ca6865de2 221 DLIST_ENTRY entry;
AzureIoTClient 12:658ca6865de2 222 } MQTT_DEVICE_TWIN_ITEM;
AzureIoTClient 12:658ca6865de2 223
AzureIoTClient 11:31ebaeb51e1e 224 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
AzureIoTClient 11:31ebaeb51e1e 225 {
Azure.IoT.Build 13:606465879c57 226 tickcounter_ms_t msgPublishTime;
AzureIoTClient 11:31ebaeb51e1e 227 size_t retryCount;
AzureIoTClient 11:31ebaeb51e1e 228 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 11:31ebaeb51e1e 229 void* context;
AzureIoTClient 11:31ebaeb51e1e 230 uint16_t packet_id;
AzureIoTClient 11:31ebaeb51e1e 231 DLIST_ENTRY entry;
AzureIoTClient 11:31ebaeb51e1e 232 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
AzureIoTClient 11:31ebaeb51e1e 233
AzureIoTClient 12:658ca6865de2 234 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 235 {
AzureIoTClient 12:658ca6865de2 236 int result;
AzureIoTClient 12:658ca6865de2 237
AzureIoTClient 12:658ca6865de2 238 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 239 {
AzureIoTClient 12:658ca6865de2 240 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 241 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 242 *permit = true;
AzureIoTClient 12:658ca6865de2 243
AzureIoTClient 12:658ca6865de2 244 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 245
AzureIoTClient 12:658ca6865de2 246 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 247 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 248 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 249 */
AzureIoTClient 12:658ca6865de2 250
AzureIoTClient 12:658ca6865de2 251 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 252 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 253 {
AzureIoTClient 12:658ca6865de2 254 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 255 }
AzureIoTClient 12:658ca6865de2 256 else
AzureIoTClient 12:658ca6865de2 257 {
AzureIoTClient 12:658ca6865de2 258 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 259 }
AzureIoTClient 12:658ca6865de2 260
AzureIoTClient 12:658ca6865de2 261 result = 0;
AzureIoTClient 12:658ca6865de2 262 }
AzureIoTClient 12:658ca6865de2 263 else
AzureIoTClient 12:658ca6865de2 264 {
AzureIoTClient 12:658ca6865de2 265 result = __LINE__;
AzureIoTClient 12:658ca6865de2 266 }
AzureIoTClient 12:658ca6865de2 267 return result;
AzureIoTClient 12:658ca6865de2 268 }
AzureIoTClient 12:658ca6865de2 269
AzureIoTClient 12:658ca6865de2 270 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 271 {
AzureIoTClient 12:658ca6865de2 272 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 273 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 274 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 275 {
AzureIoTClient 12:658ca6865de2 276 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 277 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 278 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 279 {
AzureIoTClient 12:658ca6865de2 280 case IOTHUB_CLIENT_RETRY_NONE:
AzureIoTClient 12:658ca6865de2 281 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 282 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 283 break;
AzureIoTClient 12:658ca6865de2 284 case IOTHUB_CLIENT_RETRY_IMMEDIATE:
AzureIoTClient 12:658ca6865de2 285 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 286 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 287 break;
AzureIoTClient 12:658ca6865de2 288 case IOTHUB_CLIENT_RETRY_INTERVAL:
AzureIoTClient 12:658ca6865de2 289 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 290 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 291 break;
AzureIoTClient 12:658ca6865de2 292 case IOTHUB_CLIENT_RETRY_LINEAR_BACKOFF:
AzureIoTClient 12:658ca6865de2 293 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 294 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 295 break;
AzureIoTClient 12:658ca6865de2 296 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF:
AzureIoTClient 12:658ca6865de2 297 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 298 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 299 break;
AzureIoTClient 12:658ca6865de2 300 case IOTHUB_CLIENT_RETRY_RANDOM:
AzureIoTClient 12:658ca6865de2 301 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 302 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 303 break;
AzureIoTClient 12:658ca6865de2 304 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 305 default:
AzureIoTClient 12:658ca6865de2 306 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 307 break;
AzureIoTClient 12:658ca6865de2 308 }
AzureIoTClient 12:658ca6865de2 309 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 310 retryLogic->stop = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 311 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 312 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 313 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 314 retryLogic->retryExpired = false;
AzureIoTClient 12:658ca6865de2 315 retryLogic->firstAttempt = false;
AzureIoTClient 12:658ca6865de2 316 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 317 }
AzureIoTClient 12:658ca6865de2 318 else
AzureIoTClient 12:658ca6865de2 319 {
AzureIoTClient 12:658ca6865de2 320 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 321 }
AzureIoTClient 12:658ca6865de2 322 return retryLogic;
AzureIoTClient 12:658ca6865de2 323 }
AzureIoTClient 12:658ca6865de2 324
AzureIoTClient 12:658ca6865de2 325 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 326 {
AzureIoTClient 12:658ca6865de2 327 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 328 {
AzureIoTClient 12:658ca6865de2 329 free(retryLogic);
AzureIoTClient 12:658ca6865de2 330 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 331 }
AzureIoTClient 12:658ca6865de2 332 }
AzureIoTClient 12:658ca6865de2 333
AzureIoTClient 12:658ca6865de2 334 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 335 static void StartRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 336 {
AzureIoTClient 12:658ca6865de2 337 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 338 {
AzureIoTClient 12:658ca6865de2 339 if (retryLogic->retryStarted == false)
AzureIoTClient 12:658ca6865de2 340 {
AzureIoTClient 12:658ca6865de2 341 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 342 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 343 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 344 }
AzureIoTClient 12:658ca6865de2 345
AzureIoTClient 12:658ca6865de2 346 if (retryLogic->firstAttempt == false)
AzureIoTClient 12:658ca6865de2 347 {
AzureIoTClient 12:658ca6865de2 348 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 349 }
AzureIoTClient 12:658ca6865de2 350 }
AzureIoTClient 12:658ca6865de2 351 else
AzureIoTClient 12:658ca6865de2 352 {
AzureIoTClient 12:658ca6865de2 353 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 354 }
AzureIoTClient 12:658ca6865de2 355 }
AzureIoTClient 12:658ca6865de2 356
AzureIoTClient 12:658ca6865de2 357 // Called when connected
AzureIoTClient 12:658ca6865de2 358 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 359 {
AzureIoTClient 12:658ca6865de2 360 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 361 {
AzureIoTClient 12:658ca6865de2 362 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 363 {
AzureIoTClient 12:658ca6865de2 364 retryLogic->stop = get_time(NULL);
AzureIoTClient 12:658ca6865de2 365 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 366 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 367 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 368 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 369 }
AzureIoTClient 12:658ca6865de2 370 else
AzureIoTClient 12:658ca6865de2 371 {
AzureIoTClient 12:658ca6865de2 372 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 373 }
AzureIoTClient 12:658ca6865de2 374 }
AzureIoTClient 12:658ca6865de2 375 else
AzureIoTClient 12:658ca6865de2 376 {
AzureIoTClient 12:658ca6865de2 377 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 378 }
AzureIoTClient 12:658ca6865de2 379 }
AzureIoTClient 12:658ca6865de2 380
AzureIoTClient 12:658ca6865de2 381 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 382 {
AzureIoTClient 12:658ca6865de2 383 int result;
AzureIoTClient 12:658ca6865de2 384 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 385 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 386 {
AzureIoTClient 12:658ca6865de2 387 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_041: [**If any handle is NULL then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return resultant line.] */
AzureIoTClient 12:658ca6865de2 388 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 389 result = __LINE__;
AzureIoTClient 12:658ca6865de2 390 }
AzureIoTClient 12:658ca6865de2 391 else
AzureIoTClient 12:658ca6865de2 392 {
AzureIoTClient 12:658ca6865de2 393 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 394 {
AzureIoTClient 12:658ca6865de2 395 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_042: [**If the retry logic is not already created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall create retry logic by calling CreateRetryLogic with retry policy and retryTimeout as parameters]*/
AzureIoTClient 12:658ca6865de2 396 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 397 }
AzureIoTClient 12:658ca6865de2 398 else
AzureIoTClient 12:658ca6865de2 399 {
AzureIoTClient 12:658ca6865de2 400 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_043: [**If the retry logic is already created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall destroy existing retry logic and create retry logic by calling CreateRetryLogic with retry policy and retryTimeout as parameters]*/
AzureIoTClient 12:658ca6865de2 401 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 402 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 403 }
AzureIoTClient 12:658ca6865de2 404
AzureIoTClient 12:658ca6865de2 405 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 406 {
AzureIoTClient 12:658ca6865de2 407 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_045: [**If retry logic for specified parameters of retry policy and retryTimeoutLimitInSeconds is created successfully then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return 0]*/
AzureIoTClient 12:658ca6865de2 408 result = 0;
AzureIoTClient 12:658ca6865de2 409 }
AzureIoTClient 12:658ca6865de2 410 else
AzureIoTClient 12:658ca6865de2 411 {
AzureIoTClient 12:658ca6865de2 412 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_044: [**If retry logic for specified parameters of retry policy and retryTimeoutLimitInSeconds cannot be created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return resultant line]*/
AzureIoTClient 12:658ca6865de2 413 LogError("Retry Logic is not created");
AzureIoTClient 12:658ca6865de2 414 result = __LINE__;
AzureIoTClient 12:658ca6865de2 415 }
AzureIoTClient 12:658ca6865de2 416 }
AzureIoTClient 12:658ca6865de2 417 return result;
AzureIoTClient 12:658ca6865de2 418 }
AzureIoTClient 12:658ca6865de2 419
AzureIoTClient 12:658ca6865de2 420 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 421 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 422 {
AzureIoTClient 12:658ca6865de2 423 bool result;
AzureIoTClient 12:658ca6865de2 424 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 425
AzureIoTClient 12:658ca6865de2 426 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 427 {
AzureIoTClient 12:658ca6865de2 428 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 429 result = true;
AzureIoTClient 12:658ca6865de2 430 }
AzureIoTClient 12:658ca6865de2 431 else if (now < 0 || retryLogic->start < 0 || retryLogic->stop < 0)
AzureIoTClient 12:658ca6865de2 432 {
AzureIoTClient 12:658ca6865de2 433 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 434 result = true;
AzureIoTClient 12:658ca6865de2 435 }
AzureIoTClient 12:658ca6865de2 436 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 437 {
AzureIoTClient 12:658ca6865de2 438 result = false;
AzureIoTClient 12:658ca6865de2 439 }
AzureIoTClient 12:658ca6865de2 440 else if (retryLogic->firstAttempt == false)
AzureIoTClient 12:658ca6865de2 441 {
AzureIoTClient 12:658ca6865de2 442 // try now
AzureIoTClient 12:658ca6865de2 443 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 444 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 445 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 446 result = true;
AzureIoTClient 12:658ca6865de2 447 }
AzureIoTClient 12:658ca6865de2 448 else
AzureIoTClient 12:658ca6865de2 449 {
AzureIoTClient 12:658ca6865de2 450 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 451 {
AzureIoTClient 12:658ca6865de2 452 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 12:658ca6865de2 453 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 454 {
AzureIoTClient 12:658ca6865de2 455 // Just right time to retry
AzureIoTClient 12:658ca6865de2 456 if(diffTime > WAIT_TIME_SECS)
AzureIoTClient 12:658ca6865de2 457 {
AzureIoTClient 12:658ca6865de2 458 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 459 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 460 result = true;
AzureIoTClient 12:658ca6865de2 461 }
AzureIoTClient 12:658ca6865de2 462 else
AzureIoTClient 12:658ca6865de2 463 {
AzureIoTClient 12:658ca6865de2 464 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 12:658ca6865de2 465 result = false;
AzureIoTClient 12:658ca6865de2 466 }
AzureIoTClient 12:658ca6865de2 467 }
AzureIoTClient 12:658ca6865de2 468 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 469 {
AzureIoTClient 12:658ca6865de2 470 // Too early to retry
AzureIoTClient 12:658ca6865de2 471 result = false;
AzureIoTClient 12:658ca6865de2 472 }
AzureIoTClient 12:658ca6865de2 473 else
AzureIoTClient 12:658ca6865de2 474 {
AzureIoTClient 12:658ca6865de2 475 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 12:658ca6865de2 476 bool permit = false;
AzureIoTClient 12:658ca6865de2 477 size_t delay;
AzureIoTClient 12:658ca6865de2 478
AzureIoTClient 12:658ca6865de2 479 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 480 {
AzureIoTClient 12:658ca6865de2 481 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 482 {
AzureIoTClient 12:658ca6865de2 483 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 484
AzureIoTClient 12:658ca6865de2 485 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 486
AzureIoTClient 12:658ca6865de2 487 if (retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 488 {
AzureIoTClient 12:658ca6865de2 489 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 490 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 491 result = true;
AzureIoTClient 12:658ca6865de2 492 }
AzureIoTClient 12:658ca6865de2 493 else
AzureIoTClient 12:658ca6865de2 494 {
AzureIoTClient 12:658ca6865de2 495 result = false;
AzureIoTClient 12:658ca6865de2 496 }
AzureIoTClient 12:658ca6865de2 497 }
AzureIoTClient 12:658ca6865de2 498 else
AzureIoTClient 12:658ca6865de2 499 {
AzureIoTClient 12:658ca6865de2 500 // Retry expired
AzureIoTClient 12:658ca6865de2 501 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 502 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 503 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 504 result = false;
AzureIoTClient 12:658ca6865de2 505 }
AzureIoTClient 12:658ca6865de2 506 }
AzureIoTClient 12:658ca6865de2 507 else
AzureIoTClient 12:658ca6865de2 508 {
AzureIoTClient 12:658ca6865de2 509 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 510 result = false;
AzureIoTClient 12:658ca6865de2 511 }
AzureIoTClient 12:658ca6865de2 512 }
AzureIoTClient 12:658ca6865de2 513 }
AzureIoTClient 12:658ca6865de2 514 else
AzureIoTClient 12:658ca6865de2 515 {
AzureIoTClient 12:658ca6865de2 516 // start retry when connection breaks
AzureIoTClient 12:658ca6865de2 517 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 518 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 519 result = false;
AzureIoTClient 12:658ca6865de2 520 }
AzureIoTClient 12:658ca6865de2 521 }
AzureIoTClient 12:658ca6865de2 522 return result;
AzureIoTClient 12:658ca6865de2 523 }
AzureIoTClient 12:658ca6865de2 524
AzureIoTClient 12:658ca6865de2 525
AzureIoTClient 11:31ebaeb51e1e 526 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 527 {
AzureIoTClient 11:31ebaeb51e1e 528 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 529 {
AzureIoTClient 11:31ebaeb51e1e 530 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 531 }
AzureIoTClient 11:31ebaeb51e1e 532 else
AzureIoTClient 11:31ebaeb51e1e 533 {
AzureIoTClient 11:31ebaeb51e1e 534 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 535 }
AzureIoTClient 11:31ebaeb51e1e 536 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 537 }
AzureIoTClient 11:31ebaeb51e1e 538
AzureIoTClient 11:31ebaeb51e1e 539 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 540 {
AzureIoTClient 11:31ebaeb51e1e 541 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 542 {
AzureIoTClient 11:31ebaeb51e1e 543 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 544 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 545 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 546 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 547 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 548 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 549 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 550 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 551 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 552 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 553 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 554 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 555 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 556 default:
AzureIoTClient 11:31ebaeb51e1e 557 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 558 }
AzureIoTClient 11:31ebaeb51e1e 559 }
AzureIoTClient 11:31ebaeb51e1e 560
AzureIoTClient 12:658ca6865de2 561 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, uint16_t* request_id)
AzureIoTClient 12:658ca6865de2 562 {
AzureIoTClient 12:658ca6865de2 563 int result;
AzureIoTClient 12:658ca6865de2 564 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 565 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 566 {
AzureIoTClient 12:658ca6865de2 567 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 568 result = __LINE__;
AzureIoTClient 12:658ca6865de2 569 *request_id = 0;
AzureIoTClient 12:658ca6865de2 570 }
AzureIoTClient 12:658ca6865de2 571 else
AzureIoTClient 12:658ca6865de2 572 {
AzureIoTClient 12:658ca6865de2 573 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 574 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 575 {
AzureIoTClient 12:658ca6865de2 576 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 577 result = __LINE__;
AzureIoTClient 12:658ca6865de2 578 *request_id = 0;
AzureIoTClient 12:658ca6865de2 579 }
AzureIoTClient 12:658ca6865de2 580 else
AzureIoTClient 12:658ca6865de2 581 {
AzureIoTClient 12:658ca6865de2 582 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 583 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 12:658ca6865de2 584 result = __LINE__;
AzureIoTClient 12:658ca6865de2 585 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 586 {
AzureIoTClient 12:658ca6865de2 587 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 588 {
AzureIoTClient 12:658ca6865de2 589 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 590 {
AzureIoTClient 12:658ca6865de2 591 result = __LINE__;
AzureIoTClient 12:658ca6865de2 592 *request_id = 0;
AzureIoTClient 12:658ca6865de2 593 break;
AzureIoTClient 12:658ca6865de2 594 }
AzureIoTClient 12:658ca6865de2 595 }
AzureIoTClient 12:658ca6865de2 596 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 597 {
AzureIoTClient 12:658ca6865de2 598 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 599 {
AzureIoTClient 12:658ca6865de2 600 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 601 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 602 {
AzureIoTClient 12:658ca6865de2 603 *request_id = (uint16_t)atol(request_id_value+request_id_length);
AzureIoTClient 12:658ca6865de2 604 result = 0;
AzureIoTClient 12:658ca6865de2 605 break;
AzureIoTClient 12:658ca6865de2 606 }
AzureIoTClient 12:658ca6865de2 607 }
AzureIoTClient 12:658ca6865de2 608 }
AzureIoTClient 12:658ca6865de2 609 token_index++;
AzureIoTClient 12:658ca6865de2 610 }
AzureIoTClient 12:658ca6865de2 611 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 612 }
AzureIoTClient 12:658ca6865de2 613 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 614 }
AzureIoTClient 12:658ca6865de2 615 return result;
AzureIoTClient 12:658ca6865de2 616 }
AzureIoTClient 12:658ca6865de2 617
AzureIoTClient 12:658ca6865de2 618 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 619 {
AzureIoTClient 12:658ca6865de2 620 int result;
AzureIoTClient 12:658ca6865de2 621 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 622 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 623 {
AzureIoTClient 12:658ca6865de2 624 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 625 result = __LINE__;
AzureIoTClient 12:658ca6865de2 626 *status_code = 0;
AzureIoTClient 12:658ca6865de2 627 *request_id = 0;
AzureIoTClient 12:658ca6865de2 628 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 629 }
AzureIoTClient 12:658ca6865de2 630 else
AzureIoTClient 12:658ca6865de2 631 {
AzureIoTClient 12:658ca6865de2 632 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 633 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 634 {
AzureIoTClient 12:658ca6865de2 635 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 636 result = __LINE__;
AzureIoTClient 12:658ca6865de2 637 *status_code = 0;
AzureIoTClient 12:658ca6865de2 638 *request_id = 0;
AzureIoTClient 12:658ca6865de2 639 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 640 }
AzureIoTClient 12:658ca6865de2 641 else
AzureIoTClient 12:658ca6865de2 642 {
AzureIoTClient 12:658ca6865de2 643 result = __LINE__;
AzureIoTClient 12:658ca6865de2 644 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 645 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 646 {
AzureIoTClient 12:658ca6865de2 647 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 648 {
AzureIoTClient 12:658ca6865de2 649 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 650 {
AzureIoTClient 12:658ca6865de2 651 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 652 *status_code = 0;
AzureIoTClient 12:658ca6865de2 653 *request_id = 0;
AzureIoTClient 12:658ca6865de2 654 result = 0;
AzureIoTClient 12:658ca6865de2 655 break;
AzureIoTClient 12:658ca6865de2 656 }
AzureIoTClient 12:658ca6865de2 657 else
AzureIoTClient 12:658ca6865de2 658 {
AzureIoTClient 12:658ca6865de2 659 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 660 }
AzureIoTClient 12:658ca6865de2 661 }
AzureIoTClient 12:658ca6865de2 662 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 663 {
AzureIoTClient 12:658ca6865de2 664 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 665 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 666 {
AzureIoTClient 12:658ca6865de2 667 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 668 }
AzureIoTClient 12:658ca6865de2 669 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 670 result = 0;
AzureIoTClient 12:658ca6865de2 671 break;
AzureIoTClient 12:658ca6865de2 672 }
AzureIoTClient 12:658ca6865de2 673 token_count++;
AzureIoTClient 12:658ca6865de2 674 }
AzureIoTClient 12:658ca6865de2 675 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 676 }
AzureIoTClient 12:658ca6865de2 677 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 678 }
AzureIoTClient 12:658ca6865de2 679 return result;
AzureIoTClient 12:658ca6865de2 680 }
AzureIoTClient 12:658ca6865de2 681
AzureIoTClient 12:658ca6865de2 682 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 683 {
AzureIoTClient 12:658ca6865de2 684 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 685 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 686 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 687 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 688 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 689
AzureIoTClient 12:658ca6865de2 690 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 691 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 692 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 693 {
AzureIoTClient 12:658ca6865de2 694 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 695 search_device_method = false;
AzureIoTClient 12:658ca6865de2 696 }
AzureIoTClient 12:658ca6865de2 697 else
AzureIoTClient 12:658ca6865de2 698 {
AzureIoTClient 12:658ca6865de2 699 for (size_t index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 700 {
AzureIoTClient 12:658ca6865de2 701 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 702 {
AzureIoTClient 12:658ca6865de2 703 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 704 {
AzureIoTClient 12:658ca6865de2 705 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 706 }
AzureIoTClient 12:658ca6865de2 707 else
AzureIoTClient 12:658ca6865de2 708 {
AzureIoTClient 12:658ca6865de2 709 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 710 {
AzureIoTClient 12:658ca6865de2 711 break;
AzureIoTClient 12:658ca6865de2 712 }
AzureIoTClient 12:658ca6865de2 713 else if (toupper(TOPIC_DEVICE_TWIN_PREFIX[index]) != toupper(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 714 {
AzureIoTClient 12:658ca6865de2 715 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 716 }
AzureIoTClient 12:658ca6865de2 717 }
AzureIoTClient 12:658ca6865de2 718 }
AzureIoTClient 12:658ca6865de2 719 if (search_device_method)
AzureIoTClient 12:658ca6865de2 720 {
AzureIoTClient 12:658ca6865de2 721 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 722 {
AzureIoTClient 12:658ca6865de2 723 search_device_method = false;
AzureIoTClient 12:658ca6865de2 724 }
AzureIoTClient 12:658ca6865de2 725 else
AzureIoTClient 12:658ca6865de2 726 {
AzureIoTClient 12:658ca6865de2 727 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 728 {
AzureIoTClient 12:658ca6865de2 729 break;
AzureIoTClient 12:658ca6865de2 730 }
AzureIoTClient 12:658ca6865de2 731 else if (toupper(TOPIC_DEVICE_METHOD_PREFIX[index]) != toupper(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 732 {
AzureIoTClient 12:658ca6865de2 733 search_device_method = false;
AzureIoTClient 12:658ca6865de2 734 }
AzureIoTClient 12:658ca6865de2 735 }
AzureIoTClient 12:658ca6865de2 736 }
AzureIoTClient 12:658ca6865de2 737 }
AzureIoTClient 12:658ca6865de2 738 }
AzureIoTClient 12:658ca6865de2 739 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 740 {
AzureIoTClient 12:658ca6865de2 741 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 742 }
AzureIoTClient 12:658ca6865de2 743 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 744 {
AzureIoTClient 12:658ca6865de2 745 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 746 }
AzureIoTClient 12:658ca6865de2 747 else
AzureIoTClient 12:658ca6865de2 748 {
AzureIoTClient 12:658ca6865de2 749 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 750 }
AzureIoTClient 12:658ca6865de2 751 return type;
AzureIoTClient 12:658ca6865de2 752 }
AzureIoTClient 12:658ca6865de2 753
AzureIoTClient 11:31ebaeb51e1e 754 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 755 {
AzureIoTClient 11:31ebaeb51e1e 756 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 757 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 758 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 759 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 760 }
AzureIoTClient 11:31ebaeb51e1e 761
AzureIoTClient 11:31ebaeb51e1e 762 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 763 {
AzureIoTClient 11:31ebaeb51e1e 764 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 765 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 766 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 767 size_t propertyCount;
AzureIoTClient 11:31ebaeb51e1e 768
AzureIoTClient 11:31ebaeb51e1e 769 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 770 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 771 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 772 {
AzureIoTClient 11:31ebaeb51e1e 773 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 774 {
AzureIoTClient 11:31ebaeb51e1e 775 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 776 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 777 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 778 }
AzureIoTClient 11:31ebaeb51e1e 779 else
AzureIoTClient 11:31ebaeb51e1e 780 {
AzureIoTClient 11:31ebaeb51e1e 781 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 782 {
AzureIoTClient 11:31ebaeb51e1e 783 for (size_t index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 784 {
AzureIoTClient 11:31ebaeb51e1e 785 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 786 {
AzureIoTClient 11:31ebaeb51e1e 787 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 788 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 789 }
AzureIoTClient 11:31ebaeb51e1e 790 }
AzureIoTClient 11:31ebaeb51e1e 791 }
AzureIoTClient 11:31ebaeb51e1e 792 }
AzureIoTClient 11:31ebaeb51e1e 793 }
AzureIoTClient 11:31ebaeb51e1e 794 return result;
AzureIoTClient 11:31ebaeb51e1e 795 }
AzureIoTClient 11:31ebaeb51e1e 796
AzureIoTClient 11:31ebaeb51e1e 797 static int publish_mqtt_telemetry_msg(PMQTTTRANSPORT_HANDLE_DATA transport_data, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
AzureIoTClient 11:31ebaeb51e1e 798 {
AzureIoTClient 11:31ebaeb51e1e 799 int result;
AzureIoTClient 11:31ebaeb51e1e 800 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 801 if (msgTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 802 {
AzureIoTClient 11:31ebaeb51e1e 803 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 804 }
AzureIoTClient 11:31ebaeb51e1e 805 else
AzureIoTClient 11:31ebaeb51e1e 806 {
AzureIoTClient 11:31ebaeb51e1e 807 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 808 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 809 {
AzureIoTClient 11:31ebaeb51e1e 810 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 811 }
AzureIoTClient 11:31ebaeb51e1e 812 else
AzureIoTClient 11:31ebaeb51e1e 813 {
Azure.IoT.Build 13:606465879c57 814 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 815 {
AzureIoTClient 11:31ebaeb51e1e 816 LogError("Failed retrieving tickcounter info");
AzureIoTClient 11:31ebaeb51e1e 817 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 818 }
AzureIoTClient 11:31ebaeb51e1e 819 else
AzureIoTClient 11:31ebaeb51e1e 820 {
AzureIoTClient 11:31ebaeb51e1e 821 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 822 {
AzureIoTClient 11:31ebaeb51e1e 823 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 824 }
AzureIoTClient 11:31ebaeb51e1e 825 else
AzureIoTClient 11:31ebaeb51e1e 826 {
AzureIoTClient 11:31ebaeb51e1e 827 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 828 result = 0;
AzureIoTClient 11:31ebaeb51e1e 829 }
AzureIoTClient 11:31ebaeb51e1e 830 }
AzureIoTClient 11:31ebaeb51e1e 831 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 832 }
AzureIoTClient 11:31ebaeb51e1e 833 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 834 }
AzureIoTClient 11:31ebaeb51e1e 835 return result;
AzureIoTClient 11:31ebaeb51e1e 836 }
AzureIoTClient 11:31ebaeb51e1e 837
AzureIoTClient 12:658ca6865de2 838 static int publish_device_method_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, int status_code, uint16_t request_id, BUFFER_HANDLE response)
AzureIoTClient 12:658ca6865de2 839 {
AzureIoTClient 12:658ca6865de2 840 int result;
AzureIoTClient 12:658ca6865de2 841 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 842
AzureIoTClient 12:658ca6865de2 843 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, request_id);
AzureIoTClient 12:658ca6865de2 844 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 845 {
AzureIoTClient 12:658ca6865de2 846 LogError("Failed constructing message topic.");
AzureIoTClient 12:658ca6865de2 847 result = __LINE__;
AzureIoTClient 12:658ca6865de2 848 }
AzureIoTClient 12:658ca6865de2 849 else
AzureIoTClient 12:658ca6865de2 850 {
AzureIoTClient 12:658ca6865de2 851 MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, BUFFER_u_char(response), BUFFER_length(response));
AzureIoTClient 12:658ca6865de2 852 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 853 {
AzureIoTClient 12:658ca6865de2 854 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 855 result = __LINE__;
AzureIoTClient 12:658ca6865de2 856 }
AzureIoTClient 12:658ca6865de2 857 else
AzureIoTClient 12:658ca6865de2 858 {
AzureIoTClient 12:658ca6865de2 859 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 860 {
AzureIoTClient 12:658ca6865de2 861 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 862 result = __LINE__;
AzureIoTClient 12:658ca6865de2 863 }
AzureIoTClient 12:658ca6865de2 864 else
AzureIoTClient 12:658ca6865de2 865 {
AzureIoTClient 12:658ca6865de2 866 result = 0;
AzureIoTClient 12:658ca6865de2 867 }
AzureIoTClient 12:658ca6865de2 868 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 869 }
AzureIoTClient 12:658ca6865de2 870 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 871 }
AzureIoTClient 12:658ca6865de2 872 return result;
AzureIoTClient 12:658ca6865de2 873 }
AzureIoTClient 12:658ca6865de2 874
AzureIoTClient 12:658ca6865de2 875 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 876 {
AzureIoTClient 12:658ca6865de2 877 int result;
AzureIoTClient 12:658ca6865de2 878 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 879 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 880 {
AzureIoTClient 12:658ca6865de2 881 LogError("Failed allocating device twin data.");
AzureIoTClient 12:658ca6865de2 882 result = __LINE__;
AzureIoTClient 12:658ca6865de2 883 }
AzureIoTClient 12:658ca6865de2 884 else
AzureIoTClient 12:658ca6865de2 885 {
AzureIoTClient 12:658ca6865de2 886 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 887 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 888 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 889 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 890 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 891 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 892 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 893 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 894 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 895 {
AzureIoTClient 12:658ca6865de2 896 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 897 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 898 result = __LINE__;
AzureIoTClient 12:658ca6865de2 899 }
AzureIoTClient 12:658ca6865de2 900 else
AzureIoTClient 12:658ca6865de2 901 {
AzureIoTClient 12:658ca6865de2 902 MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(mqtt_info->packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, NULL, 0);
AzureIoTClient 12:658ca6865de2 903 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 904 {
AzureIoTClient 12:658ca6865de2 905 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 906 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 907 result = __LINE__;
AzureIoTClient 12:658ca6865de2 908 }
AzureIoTClient 12:658ca6865de2 909 else
AzureIoTClient 12:658ca6865de2 910 {
AzureIoTClient 12:658ca6865de2 911 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 912 {
AzureIoTClient 12:658ca6865de2 913 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 914 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 915 result = __LINE__;
AzureIoTClient 12:658ca6865de2 916 }
AzureIoTClient 12:658ca6865de2 917 else
AzureIoTClient 12:658ca6865de2 918 {
AzureIoTClient 12:658ca6865de2 919 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 920 result = 0;
AzureIoTClient 12:658ca6865de2 921 }
AzureIoTClient 12:658ca6865de2 922 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 923 }
AzureIoTClient 12:658ca6865de2 924 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 925 }
AzureIoTClient 12:658ca6865de2 926 }
AzureIoTClient 12:658ca6865de2 927 return result;
AzureIoTClient 12:658ca6865de2 928 }
AzureIoTClient 12:658ca6865de2 929
AzureIoTClient 12:658ca6865de2 930 static int publish_device_twin_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, IOTHUB_DEVICE_TWIN* device_twin_info, MQTT_DEVICE_TWIN_ITEM* mqtt_info)
AzureIoTClient 12:658ca6865de2 931 {
AzureIoTClient 12:658ca6865de2 932 int result;
AzureIoTClient 12:658ca6865de2 933 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 934 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 935 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 936 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 937 {
AzureIoTClient 12:658ca6865de2 938 LogError("Failed constructing reported prop topic.");
AzureIoTClient 12:658ca6865de2 939 result = __LINE__;
AzureIoTClient 12:658ca6865de2 940 }
AzureIoTClient 12:658ca6865de2 941 else
AzureIoTClient 12:658ca6865de2 942 {
AzureIoTClient 12:658ca6865de2 943 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 944 MQTT_MESSAGE_HANDLE mqtt_rpt_msg = mqttmessage_create(mqtt_info->packet_id, STRING_c_str(msgTopic), DELIVER_AT_MOST_ONCE, data_buff->buffer, data_buff->size);
AzureIoTClient 12:658ca6865de2 945 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 946 {
AzureIoTClient 12:658ca6865de2 947 LogError("Failed creating mqtt message");
AzureIoTClient 12:658ca6865de2 948 result = __LINE__;
AzureIoTClient 12:658ca6865de2 949 }
AzureIoTClient 12:658ca6865de2 950 else
AzureIoTClient 12:658ca6865de2 951 {
Azure.IoT.Build 13:606465879c57 952 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 953 {
AzureIoTClient 12:658ca6865de2 954 LogError("Failed retrieving tickcounter info");
AzureIoTClient 12:658ca6865de2 955 result = __LINE__;
AzureIoTClient 12:658ca6865de2 956 }
AzureIoTClient 12:658ca6865de2 957 else
AzureIoTClient 12:658ca6865de2 958 {
AzureIoTClient 12:658ca6865de2 959 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 960 {
AzureIoTClient 12:658ca6865de2 961 LogError("Failed publishing mqtt message");
AzureIoTClient 12:658ca6865de2 962 result = __LINE__;
AzureIoTClient 12:658ca6865de2 963 }
AzureIoTClient 12:658ca6865de2 964 else
AzureIoTClient 12:658ca6865de2 965 {
AzureIoTClient 12:658ca6865de2 966 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 967 result = 0;
AzureIoTClient 12:658ca6865de2 968 }
AzureIoTClient 12:658ca6865de2 969 }
AzureIoTClient 12:658ca6865de2 970 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 971 }
AzureIoTClient 12:658ca6865de2 972 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 973 }
AzureIoTClient 12:658ca6865de2 974 return result;
AzureIoTClient 12:658ca6865de2 975 }
AzureIoTClient 12:658ca6865de2 976
AzureIoTClient 11:31ebaeb51e1e 977 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 978 {
AzureIoTClient 11:31ebaeb51e1e 979 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 980 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 11:31ebaeb51e1e 981 for (size_t index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 982 {
AzureIoTClient 11:31ebaeb51e1e 983 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 984 {
AzureIoTClient 11:31ebaeb51e1e 985 result = true;
AzureIoTClient 11:31ebaeb51e1e 986 break;
AzureIoTClient 11:31ebaeb51e1e 987 }
AzureIoTClient 11:31ebaeb51e1e 988 }
AzureIoTClient 11:31ebaeb51e1e 989 return result;
AzureIoTClient 11:31ebaeb51e1e 990 }
AzureIoTClient 11:31ebaeb51e1e 991
AzureIoTClient 11:31ebaeb51e1e 992 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 993 {
AzureIoTClient 11:31ebaeb51e1e 994 int result;
AzureIoTClient 11:31ebaeb51e1e 995 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 996 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 997 {
AzureIoTClient 11:31ebaeb51e1e 998 LogError("Failure constructing string topic name.");
AzureIoTClient 11:31ebaeb51e1e 999 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1000 }
AzureIoTClient 11:31ebaeb51e1e 1001 else
AzureIoTClient 11:31ebaeb51e1e 1002 {
AzureIoTClient 11:31ebaeb51e1e 1003 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1004 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1005 {
AzureIoTClient 11:31ebaeb51e1e 1006 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1007 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1008 {
AzureIoTClient 11:31ebaeb51e1e 1009 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 11:31ebaeb51e1e 1010 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1011 }
AzureIoTClient 11:31ebaeb51e1e 1012 else
AzureIoTClient 11:31ebaeb51e1e 1013 {
AzureIoTClient 11:31ebaeb51e1e 1014 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1015 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1016 {
AzureIoTClient 11:31ebaeb51e1e 1017 LogError("Failure to allocate STRING_new.");
AzureIoTClient 11:31ebaeb51e1e 1018 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1019 }
AzureIoTClient 11:31ebaeb51e1e 1020 else
AzureIoTClient 11:31ebaeb51e1e 1021 {
AzureIoTClient 11:31ebaeb51e1e 1022 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1023 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1024 {
AzureIoTClient 11:31ebaeb51e1e 1025 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1026 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1027 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1028 {
AzureIoTClient 11:31ebaeb51e1e 1029 break;
AzureIoTClient 11:31ebaeb51e1e 1030 }
AzureIoTClient 11:31ebaeb51e1e 1031 else
AzureIoTClient 11:31ebaeb51e1e 1032 {
AzureIoTClient 11:31ebaeb51e1e 1033 if (!isSystemProperty(tokenData) )
AzureIoTClient 11:31ebaeb51e1e 1034 {
AzureIoTClient 11:31ebaeb51e1e 1035 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1036 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1037 {
AzureIoTClient 11:31ebaeb51e1e 1038 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1039 {
AzureIoTClient 11:31ebaeb51e1e 1040 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1041 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1042
AzureIoTClient 11:31ebaeb51e1e 1043 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1044 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1045
AzureIoTClient 11:31ebaeb51e1e 1046 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1047 {
AzureIoTClient 11:31ebaeb51e1e 1048 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1049 }
AzureIoTClient 11:31ebaeb51e1e 1050 else
AzureIoTClient 11:31ebaeb51e1e 1051 {
AzureIoTClient 11:31ebaeb51e1e 1052 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1053 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1054
AzureIoTClient 11:31ebaeb51e1e 1055 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1056 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1057
AzureIoTClient 11:31ebaeb51e1e 1058 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1059 {
AzureIoTClient 11:31ebaeb51e1e 1060 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 11:31ebaeb51e1e 1061 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1062 }
AzureIoTClient 11:31ebaeb51e1e 1063 }
AzureIoTClient 11:31ebaeb51e1e 1064 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1065 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1066
AzureIoTClient 11:31ebaeb51e1e 1067 break;
AzureIoTClient 11:31ebaeb51e1e 1068 }
AzureIoTClient 11:31ebaeb51e1e 1069 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1070 }
AzureIoTClient 11:31ebaeb51e1e 1071 }
AzureIoTClient 11:31ebaeb51e1e 1072 }
AzureIoTClient 11:31ebaeb51e1e 1073 }
AzureIoTClient 11:31ebaeb51e1e 1074 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1075 }
AzureIoTClient 11:31ebaeb51e1e 1076 }
AzureIoTClient 11:31ebaeb51e1e 1077 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1078 }
AzureIoTClient 11:31ebaeb51e1e 1079 else
AzureIoTClient 11:31ebaeb51e1e 1080 {
AzureIoTClient 11:31ebaeb51e1e 1081 LogError("Unable to create Tokenizer object.");
AzureIoTClient 11:31ebaeb51e1e 1082 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1083 }
AzureIoTClient 11:31ebaeb51e1e 1084 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1085 }
AzureIoTClient 11:31ebaeb51e1e 1086 return result;
AzureIoTClient 11:31ebaeb51e1e 1087 }
AzureIoTClient 11:31ebaeb51e1e 1088
AzureIoTClient 11:31ebaeb51e1e 1089 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1090 {
AzureIoTClient 11:31ebaeb51e1e 1091 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1092 {
AzureIoTClient 11:31ebaeb51e1e 1093 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1094 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1095 {
AzureIoTClient 11:31ebaeb51e1e 1096 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1097 }
AzureIoTClient 11:31ebaeb51e1e 1098 else
AzureIoTClient 11:31ebaeb51e1e 1099 {
AzureIoTClient 11:31ebaeb51e1e 1100 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1101
AzureIoTClient 12:658ca6865de2 1102 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1103 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1104 {
AzureIoTClient 12:658ca6865de2 1105 size_t request_id;
AzureIoTClient 12:658ca6865de2 1106 int status_code;
AzureIoTClient 12:658ca6865de2 1107 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1108 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1109 {
AzureIoTClient 12:658ca6865de2 1110 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1111 }
AzureIoTClient 12:658ca6865de2 1112 else
AzureIoTClient 12:658ca6865de2 1113 {
AzureIoTClient 12:658ca6865de2 1114 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1115 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1116 {
AzureIoTClient 12:658ca6865de2 1117 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1118 }
AzureIoTClient 12:658ca6865de2 1119 else
AzureIoTClient 12:658ca6865de2 1120 {
AzureIoTClient 12:658ca6865de2 1121 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1122 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1123 {
AzureIoTClient 12:658ca6865de2 1124 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1125 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1126 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1127 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1128 {
AzureIoTClient 12:658ca6865de2 1129 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1130 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1131 {
AzureIoTClient 12:658ca6865de2 1132 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1133 }
AzureIoTClient 12:658ca6865de2 1134 else
AzureIoTClient 12:658ca6865de2 1135 {
AzureIoTClient 12:658ca6865de2 1136 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1137 }
AzureIoTClient 12:658ca6865de2 1138 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1139 break;
AzureIoTClient 12:658ca6865de2 1140 }
AzureIoTClient 12:658ca6865de2 1141 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1142 }
AzureIoTClient 12:658ca6865de2 1143 }
AzureIoTClient 12:658ca6865de2 1144 }
AzureIoTClient 12:658ca6865de2 1145 }
AzureIoTClient 12:658ca6865de2 1146 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1147 {
AzureIoTClient 12:658ca6865de2 1148 uint16_t request_id;
AzureIoTClient 12:658ca6865de2 1149 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1150 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1151 {
AzureIoTClient 12:658ca6865de2 1152 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1153 }
AzureIoTClient 12:658ca6865de2 1154 else
AzureIoTClient 12:658ca6865de2 1155 {
AzureIoTClient 12:658ca6865de2 1156 BUFFER_HANDLE result_buffer;
AzureIoTClient 12:658ca6865de2 1157 if (retrieve_device_method_rid_info(topic_resp, method_name, &request_id) != 0)
AzureIoTClient 12:658ca6865de2 1158 {
AzureIoTClient 12:658ca6865de2 1159 LogError("Failure: retrieve device topic info");
AzureIoTClient 12:658ca6865de2 1160 }
AzureIoTClient 12:658ca6865de2 1161 else if ((result_buffer = BUFFER_new()) == NULL)
AzureIoTClient 12:658ca6865de2 1162 {
AzureIoTClient 12:658ca6865de2 1163 LogError("Failure: retrieve device topic info");
AzureIoTClient 12:658ca6865de2 1164 }
AzureIoTClient 12:658ca6865de2 1165 else
AzureIoTClient 12:658ca6865de2 1166 {
AzureIoTClient 12:658ca6865de2 1167 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1168 int status_code = IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, result_buffer);
AzureIoTClient 12:658ca6865de2 1169 if (publish_device_method_message(transportData, status_code, request_id, result_buffer) != 0)
AzureIoTClient 12:658ca6865de2 1170 {
AzureIoTClient 12:658ca6865de2 1171 LogError("Failure: publishing device method response");
AzureIoTClient 12:658ca6865de2 1172 }
AzureIoTClient 12:658ca6865de2 1173 BUFFER_delete(result_buffer);
AzureIoTClient 12:658ca6865de2 1174 }
AzureIoTClient 12:658ca6865de2 1175 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1176 }
AzureIoTClient 11:31ebaeb51e1e 1177 }
AzureIoTClient 11:31ebaeb51e1e 1178 else
AzureIoTClient 11:31ebaeb51e1e 1179 {
AzureIoTClient 12:658ca6865de2 1180 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1181 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1182 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1183 {
AzureIoTClient 12:658ca6865de2 1184 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1185 }
AzureIoTClient 11:31ebaeb51e1e 1186 else
AzureIoTClient 11:31ebaeb51e1e 1187 {
AzureIoTClient 12:658ca6865de2 1188 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1189 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1190 {
AzureIoTClient 12:658ca6865de2 1191 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1192 }
AzureIoTClient 12:658ca6865de2 1193 else
AzureIoTClient 11:31ebaeb51e1e 1194 {
AzureIoTClient 12:658ca6865de2 1195 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
AzureIoTClient 12:658ca6865de2 1196 {
AzureIoTClient 12:658ca6865de2 1197 LogError("Event not accepted by our client.");
AzureIoTClient 12:658ca6865de2 1198 }
AzureIoTClient 11:31ebaeb51e1e 1199 }
AzureIoTClient 12:658ca6865de2 1200 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1201 }
AzureIoTClient 11:31ebaeb51e1e 1202 }
AzureIoTClient 11:31ebaeb51e1e 1203 }
AzureIoTClient 11:31ebaeb51e1e 1204 }
AzureIoTClient 11:31ebaeb51e1e 1205 }
AzureIoTClient 11:31ebaeb51e1e 1206
AzureIoTClient 11:31ebaeb51e1e 1207 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1208 {
AzureIoTClient 11:31ebaeb51e1e 1209 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1210 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1211 {
AzureIoTClient 11:31ebaeb51e1e 1212 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1213
AzureIoTClient 11:31ebaeb51e1e 1214 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1215 {
AzureIoTClient 11:31ebaeb51e1e 1216 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1217 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1218 {
AzureIoTClient 11:31ebaeb51e1e 1219 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1220 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1221 {
AzureIoTClient 11:31ebaeb51e1e 1222 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1223 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1224 {
AzureIoTClient 11:31ebaeb51e1e 1225 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1226 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1227 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1228
AzureIoTClient 11:31ebaeb51e1e 1229 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1230 {
AzureIoTClient 11:31ebaeb51e1e 1231 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1232 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1233 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1234 }
AzureIoTClient 11:31ebaeb51e1e 1235 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1236 }
AzureIoTClient 11:31ebaeb51e1e 1237 }
AzureIoTClient 11:31ebaeb51e1e 1238 else
AzureIoTClient 11:31ebaeb51e1e 1239 {
AzureIoTClient 11:31ebaeb51e1e 1240 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1241 }
AzureIoTClient 11:31ebaeb51e1e 1242 break;
AzureIoTClient 11:31ebaeb51e1e 1243 }
AzureIoTClient 11:31ebaeb51e1e 1244 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1245 {
AzureIoTClient 11:31ebaeb51e1e 1246 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1247 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1248 {
AzureIoTClient 11:31ebaeb51e1e 1249 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1250 {
AzureIoTClient 11:31ebaeb51e1e 1251 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1252 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1253 transport_data->isRecoverableError = true;
AzureIoTClient 12:658ca6865de2 1254 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 1255 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1256 }
AzureIoTClient 11:31ebaeb51e1e 1257 else
AzureIoTClient 11:31ebaeb51e1e 1258 {
AzureIoTClient 12:658ca6865de2 1259 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1260 {
AzureIoTClient 12:658ca6865de2 1261 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1262 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1263 }
AzureIoTClient 12:658ca6865de2 1264 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1265 {
AzureIoTClient 12:658ca6865de2 1266 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1267 }
AzureIoTClient 12:658ca6865de2 1268 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1269 {
AzureIoTClient 12:658ca6865de2 1270 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1271 }
AzureIoTClient 11:31ebaeb51e1e 1272 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1273 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1274 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1275 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1276 }
AzureIoTClient 11:31ebaeb51e1e 1277 }
AzureIoTClient 11:31ebaeb51e1e 1278 else
AzureIoTClient 11:31ebaeb51e1e 1279 {
AzureIoTClient 11:31ebaeb51e1e 1280 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1281 }
AzureIoTClient 11:31ebaeb51e1e 1282 break;
AzureIoTClient 11:31ebaeb51e1e 1283 }
AzureIoTClient 11:31ebaeb51e1e 1284 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1285 {
AzureIoTClient 11:31ebaeb51e1e 1286 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1287 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1288 {
AzureIoTClient 11:31ebaeb51e1e 1289 for (size_t index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1290 {
AzureIoTClient 11:31ebaeb51e1e 1291 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1292 {
AzureIoTClient 11:31ebaeb51e1e 1293 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1294 }
AzureIoTClient 11:31ebaeb51e1e 1295 }
AzureIoTClient 11:31ebaeb51e1e 1296 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1297 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1298 }
AzureIoTClient 11:31ebaeb51e1e 1299 else
AzureIoTClient 11:31ebaeb51e1e 1300 {
AzureIoTClient 11:31ebaeb51e1e 1301 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1302 }
AzureIoTClient 11:31ebaeb51e1e 1303 break;
AzureIoTClient 11:31ebaeb51e1e 1304 }
AzureIoTClient 11:31ebaeb51e1e 1305 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1306 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1307 {
AzureIoTClient 11:31ebaeb51e1e 1308 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1309 break;
AzureIoTClient 11:31ebaeb51e1e 1310 }
AzureIoTClient 11:31ebaeb51e1e 1311 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1312 {
AzureIoTClient 11:31ebaeb51e1e 1313 // Close the client so we can reconnect again
AzureIoTClient 11:31ebaeb51e1e 1314 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1315 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1316 break;
AzureIoTClient 11:31ebaeb51e1e 1317 }
AzureIoTClient 12:658ca6865de2 1318 }
AzureIoTClient 12:658ca6865de2 1319 }
AzureIoTClient 12:658ca6865de2 1320 }
AzureIoTClient 12:658ca6865de2 1321
AzureIoTClient 12:658ca6865de2 1322 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1323 {
AzureIoTClient 12:658ca6865de2 1324 (void)handle;
AzureIoTClient 12:658ca6865de2 1325 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1326 {
AzureIoTClient 12:658ca6865de2 1327 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1328 switch (error)
AzureIoTClient 12:658ca6865de2 1329 {
AzureIoTClient 12:658ca6865de2 1330 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1331 {
AzureIoTClient 12:658ca6865de2 1332 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1333 break;
AzureIoTClient 12:658ca6865de2 1334 }
AzureIoTClient 12:658ca6865de2 1335 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1336 {
AzureIoTClient 12:658ca6865de2 1337 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1338 break;
AzureIoTClient 11:31ebaeb51e1e 1339 }
AzureIoTClient 11:31ebaeb51e1e 1340 }
AzureIoTClient 12:658ca6865de2 1341 transport_data->isConnected = false;
AzureIoTClient 12:658ca6865de2 1342 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1343 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1344 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1345 {
Azure.IoT.Build 13:606465879c57 1346 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1347 }
Azure.IoT.Build 13:606465879c57 1348 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1349 {
Azure.IoT.Build 13:606465879c57 1350 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1351 }
Azure.IoT.Build 13:606465879c57 1352 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1353 {
Azure.IoT.Build 13:606465879c57 1354 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1355 }
Azure.IoT.Build 13:606465879c57 1356 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1357 {
Azure.IoT.Build 13:606465879c57 1358 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1359 }
Azure.IoT.Build 13:606465879c57 1360 }
AzureIoTClient 12:658ca6865de2 1361 else
AzureIoTClient 12:658ca6865de2 1362 {
AzureIoTClient 12:658ca6865de2 1363 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1364 }
AzureIoTClient 11:31ebaeb51e1e 1365 }
AzureIoTClient 11:31ebaeb51e1e 1366
AzureIoTClient 11:31ebaeb51e1e 1367 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1368 {
AzureIoTClient 11:31ebaeb51e1e 1369 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1370 {
AzureIoTClient 11:31ebaeb51e1e 1371 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1372 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1373 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1374 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1375 {
AzureIoTClient 11:31ebaeb51e1e 1376 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1377 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1378 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1379 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1380 }
AzureIoTClient 12:658ca6865de2 1381 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1382 {
AzureIoTClient 12:658ca6865de2 1383 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1384 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1385 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1386 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1387 }
AzureIoTClient 12:658ca6865de2 1388 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1389 {
AzureIoTClient 12:658ca6865de2 1390 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1391 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1392 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1393 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1394 }
AzureIoTClient 12:658ca6865de2 1395 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1396 {
AzureIoTClient 12:658ca6865de2 1397 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1398 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1399 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1400 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1401 }
AzureIoTClient 11:31ebaeb51e1e 1402
AzureIoTClient 11:31ebaeb51e1e 1403 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1404 {
AzureIoTClient 12:658ca6865de2 1405 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransport_MQTT_Common_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
AzureIoTClient 11:31ebaeb51e1e 1406 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1407 {
AzureIoTClient 12:658ca6865de2 1408 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1409 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1410 }
AzureIoTClient 11:31ebaeb51e1e 1411 else
AzureIoTClient 11:31ebaeb51e1e 1412 {
AzureIoTClient 12:658ca6865de2 1413 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1414 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1415 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1416 }
AzureIoTClient 11:31ebaeb51e1e 1417 }
AzureIoTClient 11:31ebaeb51e1e 1418 else
AzureIoTClient 11:31ebaeb51e1e 1419 {
AzureIoTClient 12:658ca6865de2 1420 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1421 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1422 }
AzureIoTClient 11:31ebaeb51e1e 1423 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1424 }
AzureIoTClient 11:31ebaeb51e1e 1425 else
AzureIoTClient 11:31ebaeb51e1e 1426 {
AzureIoTClient 11:31ebaeb51e1e 1427 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1428 }
AzureIoTClient 11:31ebaeb51e1e 1429 }
AzureIoTClient 11:31ebaeb51e1e 1430
AzureIoTClient 11:31ebaeb51e1e 1431 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1432 {
AzureIoTClient 11:31ebaeb51e1e 1433 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1434
AzureIoTClient 11:31ebaeb51e1e 1435 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1436 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1437 {
AzureIoTClient 11:31ebaeb51e1e 1438 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1439 {
AzureIoTClient 11:31ebaeb51e1e 1440 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1441 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1442 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1443 }
AzureIoTClient 11:31ebaeb51e1e 1444 }
AzureIoTClient 11:31ebaeb51e1e 1445 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1446 {
AzureIoTClient 11:31ebaeb51e1e 1447 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1448 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1449 {
AzureIoTClient 11:31ebaeb51e1e 1450 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1451 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1452 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1453 }
AzureIoTClient 11:31ebaeb51e1e 1454 else
AzureIoTClient 11:31ebaeb51e1e 1455 {
AzureIoTClient 11:31ebaeb51e1e 1456 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1457 }
AzureIoTClient 11:31ebaeb51e1e 1458 }
AzureIoTClient 11:31ebaeb51e1e 1459 else
AzureIoTClient 11:31ebaeb51e1e 1460 {
AzureIoTClient 11:31ebaeb51e1e 1461 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1462 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1463 }
AzureIoTClient 11:31ebaeb51e1e 1464 return result;
AzureIoTClient 11:31ebaeb51e1e 1465 }
AzureIoTClient 11:31ebaeb51e1e 1466
AzureIoTClient 11:31ebaeb51e1e 1467 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1468 {
AzureIoTClient 11:31ebaeb51e1e 1469 int result;
AzureIoTClient 11:31ebaeb51e1e 1470
AzureIoTClient 11:31ebaeb51e1e 1471 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1472 {
AzureIoTClient 11:31ebaeb51e1e 1473 // construct address
AzureIoTClient 11:31ebaeb51e1e 1474 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1475 transport_data->xioTransport = transport_data->get_io_transport(hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1476 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1477 {
AzureIoTClient 11:31ebaeb51e1e 1478 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 11:31ebaeb51e1e 1479 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1480 }
AzureIoTClient 11:31ebaeb51e1e 1481 else
AzureIoTClient 11:31ebaeb51e1e 1482 {
AzureIoTClient 11:31ebaeb51e1e 1483 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1484 }
AzureIoTClient 11:31ebaeb51e1e 1485 }
AzureIoTClient 11:31ebaeb51e1e 1486 else
AzureIoTClient 11:31ebaeb51e1e 1487 {
AzureIoTClient 11:31ebaeb51e1e 1488 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1489 }
AzureIoTClient 11:31ebaeb51e1e 1490 return result;
AzureIoTClient 11:31ebaeb51e1e 1491 }
AzureIoTClient 11:31ebaeb51e1e 1492
AzureIoTClient 11:31ebaeb51e1e 1493 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1494 {
AzureIoTClient 11:31ebaeb51e1e 1495 int result;
AzureIoTClient 11:31ebaeb51e1e 1496
AzureIoTClient 11:31ebaeb51e1e 1497 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 11:31ebaeb51e1e 1498 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1499 if (emptyKeyName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1500 {
AzureIoTClient 11:31ebaeb51e1e 1501 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1502 }
AzureIoTClient 11:31ebaeb51e1e 1503 else
AzureIoTClient 11:31ebaeb51e1e 1504 {
AzureIoTClient 11:31ebaeb51e1e 1505 STRING_HANDLE sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1506 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1507
AzureIoTClient 11:31ebaeb51e1e 1508 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1509 {
AzureIoTClient 12:658ca6865de2 1510 case SAS_TOKEN_FROM_USER:
AzureIoTClient 12:658ca6865de2 1511 sasToken = STRING_clone(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 12:658ca6865de2 1512 if (!SASToken_Validate(sasToken))
AzureIoTClient 11:31ebaeb51e1e 1513 {
AzureIoTClient 12:658ca6865de2 1514 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 12:658ca6865de2 1515 STRING_delete(sasToken);
AzureIoTClient 12:658ca6865de2 1516 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1517 }
AzureIoTClient 12:658ca6865de2 1518 break;
AzureIoTClient 12:658ca6865de2 1519 case DEVICE_KEY:
AzureIoTClient 12:658ca6865de2 1520 {
AzureIoTClient 12:658ca6865de2 1521 // Construct SAS token
AzureIoTClient 12:658ca6865de2 1522 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 12:658ca6865de2 1523 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 11:31ebaeb51e1e 1524
AzureIoTClient 12:658ca6865de2 1525 sasToken = SASToken_Create(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey, transport_data->devicesPath, emptyKeyName, expiryTime);
AzureIoTClient 12:658ca6865de2 1526 break;
AzureIoTClient 12:658ca6865de2 1527 }
AzureIoTClient 12:658ca6865de2 1528 case X509:
AzureIoTClient 12:658ca6865de2 1529 default:
AzureIoTClient 12:658ca6865de2 1530 // The assumption here is that x509 is in place, if not setup
AzureIoTClient 12:658ca6865de2 1531 // correctly the connection will be rejected.
AzureIoTClient 12:658ca6865de2 1532 sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1533 break;
AzureIoTClient 11:31ebaeb51e1e 1534 }
AzureIoTClient 11:31ebaeb51e1e 1535
AzureIoTClient 12:658ca6865de2 1536 if (result == 0)
AzureIoTClient 11:31ebaeb51e1e 1537 {
AzureIoTClient 12:658ca6865de2 1538 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 12:658ca6865de2 1539 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 12:658ca6865de2 1540 options.willMessage = NULL;
AzureIoTClient 12:658ca6865de2 1541 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 1542 if (sasToken != NULL)
AzureIoTClient 12:658ca6865de2 1543 {
AzureIoTClient 12:658ca6865de2 1544 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 12:658ca6865de2 1545 }
AzureIoTClient 12:658ca6865de2 1546 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 12:658ca6865de2 1547 options.useCleanSession = false;
AzureIoTClient 12:658ca6865de2 1548 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1549
AzureIoTClient 12:658ca6865de2 1550 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 1551 {
AzureIoTClient 12:658ca6865de2 1552 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 12:658ca6865de2 1553 {
AzureIoTClient 12:658ca6865de2 1554 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 12:658ca6865de2 1555 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1556 }
AzureIoTClient 12:658ca6865de2 1557 else
AzureIoTClient 12:658ca6865de2 1558 {
Azure.IoT.Build 13:606465879c57 1559 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 12:658ca6865de2 1560 result = 0;
AzureIoTClient 12:658ca6865de2 1561 }
AzureIoTClient 11:31ebaeb51e1e 1562 }
AzureIoTClient 11:31ebaeb51e1e 1563 else
AzureIoTClient 11:31ebaeb51e1e 1564 {
AzureIoTClient 12:658ca6865de2 1565 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1566 }
AzureIoTClient 12:658ca6865de2 1567
AzureIoTClient 12:658ca6865de2 1568 STRING_delete(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1569 }
AzureIoTClient 11:31ebaeb51e1e 1570 STRING_delete(emptyKeyName);
AzureIoTClient 11:31ebaeb51e1e 1571 }
AzureIoTClient 11:31ebaeb51e1e 1572 return result;
AzureIoTClient 11:31ebaeb51e1e 1573 }
AzureIoTClient 11:31ebaeb51e1e 1574
AzureIoTClient 11:31ebaeb51e1e 1575 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1576 {
AzureIoTClient 11:31ebaeb51e1e 1577 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1578
AzureIoTClient 11:31ebaeb51e1e 1579 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1580 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1581 {
AzureIoTClient 11:31ebaeb51e1e 1582 // If we are not isConnected then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1583 // to back off the connecting to the server
AzureIoTClient 12:658ca6865de2 1584 if (!transport_data->isConnected && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1585 {
Azure.IoT.Build 13:606465879c57 1586 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1587 {
AzureIoTClient 12:658ca6865de2 1588 transport_data->connectFailCount++;
AzureIoTClient 12:658ca6865de2 1589 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1590 }
AzureIoTClient 12:658ca6865de2 1591 else
AzureIoTClient 11:31ebaeb51e1e 1592 {
AzureIoTClient 12:658ca6865de2 1593 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1594 {
AzureIoTClient 11:31ebaeb51e1e 1595 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1596 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1597 }
AzureIoTClient 11:31ebaeb51e1e 1598 else
AzureIoTClient 11:31ebaeb51e1e 1599 {
AzureIoTClient 12:658ca6865de2 1600 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1601 transport_data->isConnected = true;
AzureIoTClient 12:658ca6865de2 1602 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1603 }
AzureIoTClient 11:31ebaeb51e1e 1604 }
AzureIoTClient 11:31ebaeb51e1e 1605 }
AzureIoTClient 11:31ebaeb51e1e 1606
AzureIoTClient 11:31ebaeb51e1e 1607 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 1608 {
AzureIoTClient 11:31ebaeb51e1e 1609 // We are isConnected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1610 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1611 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1612 {
AzureIoTClient 11:31ebaeb51e1e 1613 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1614 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1615 }
AzureIoTClient 11:31ebaeb51e1e 1616 else
AzureIoTClient 11:31ebaeb51e1e 1617 {
AzureIoTClient 11:31ebaeb51e1e 1618 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1619 {
AzureIoTClient 11:31ebaeb51e1e 1620 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 12:658ca6865de2 1621 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 11:31ebaeb51e1e 1622 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1623 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1624 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1625 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1626 {
AzureIoTClient 11:31ebaeb51e1e 1627 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1628 }
AzureIoTClient 12:658ca6865de2 1629 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1630 {
AzureIoTClient 12:658ca6865de2 1631 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1632 }
AzureIoTClient 12:658ca6865de2 1633 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1634 {
AzureIoTClient 12:658ca6865de2 1635 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1636 }
AzureIoTClient 12:658ca6865de2 1637 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1638 {
AzureIoTClient 12:658ca6865de2 1639 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1640 }
AzureIoTClient 11:31ebaeb51e1e 1641 }
AzureIoTClient 11:31ebaeb51e1e 1642 }
AzureIoTClient 11:31ebaeb51e1e 1643 }
AzureIoTClient 11:31ebaeb51e1e 1644 }
AzureIoTClient 11:31ebaeb51e1e 1645 return result;
AzureIoTClient 11:31ebaeb51e1e 1646 }
AzureIoTClient 11:31ebaeb51e1e 1647
AzureIoTClient 11:31ebaeb51e1e 1648 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1649 {
AzureIoTClient 12:658ca6865de2 1650 STRING_HANDLE result = STRING_construct_sprintf("%s.%s/%s/api-version=%s&DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, IOTHUB_API_VERSION, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
AzureIoTClient 11:31ebaeb51e1e 1651 return result;
AzureIoTClient 11:31ebaeb51e1e 1652 }
AzureIoTClient 11:31ebaeb51e1e 1653
AzureIoTClient 11:31ebaeb51e1e 1654 static int construct_credential_information(const IOTHUB_CLIENT_CONFIG* upperConfig, PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1655 {
AzureIoTClient 11:31ebaeb51e1e 1656 int result;
AzureIoTClient 11:31ebaeb51e1e 1657 if (upperConfig->deviceKey != NULL)
AzureIoTClient 11:31ebaeb51e1e 1658 {
AzureIoTClient 11:31ebaeb51e1e 1659 transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey = STRING_construct(upperConfig->deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1660 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey == NULL)
AzureIoTClient 11:31ebaeb51e1e 1661 {
AzureIoTClient 11:31ebaeb51e1e 1662 LogError("Could not create device key for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1663 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1664 }
AzureIoTClient 11:31ebaeb51e1e 1665 else if ((transport_data->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1666 {
AzureIoTClient 11:31ebaeb51e1e 1667 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1668 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1669 }
AzureIoTClient 11:31ebaeb51e1e 1670 else
AzureIoTClient 11:31ebaeb51e1e 1671 {
AzureIoTClient 11:31ebaeb51e1e 1672 transport_data->transport_creds.credential_type = DEVICE_KEY;
AzureIoTClient 11:31ebaeb51e1e 1673 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1674 }
AzureIoTClient 11:31ebaeb51e1e 1675 }
AzureIoTClient 11:31ebaeb51e1e 1676 else if (upperConfig->deviceSasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1677 {
AzureIoTClient 11:31ebaeb51e1e 1678 transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken = STRING_construct(upperConfig->deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1679 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1680 {
AzureIoTClient 11:31ebaeb51e1e 1681 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1682 }
AzureIoTClient 11:31ebaeb51e1e 1683 else
AzureIoTClient 11:31ebaeb51e1e 1684 {
AzureIoTClient 11:31ebaeb51e1e 1685 transport_data->transport_creds.credential_type = SAS_TOKEN_FROM_USER;
AzureIoTClient 11:31ebaeb51e1e 1686 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1687 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1688 }
AzureIoTClient 11:31ebaeb51e1e 1689 }
AzureIoTClient 11:31ebaeb51e1e 1690 else
AzureIoTClient 11:31ebaeb51e1e 1691 {
AzureIoTClient 12:658ca6865de2 1692 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_041: [If both deviceKey and deviceSasToken fields are NULL then IoTHubTransport_MQTT_Common_Create shall assume a x509 authentication.] */
AzureIoTClient 11:31ebaeb51e1e 1693 transport_data->transport_creds.credential_type = X509;
AzureIoTClient 11:31ebaeb51e1e 1694 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1695 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1696 }
AzureIoTClient 11:31ebaeb51e1e 1697 return result;
AzureIoTClient 11:31ebaeb51e1e 1698 }
AzureIoTClient 11:31ebaeb51e1e 1699
AzureIoTClient 11:31ebaeb51e1e 1700 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 1701 {
AzureIoTClient 11:31ebaeb51e1e 1702 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1703 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1704 {
AzureIoTClient 11:31ebaeb51e1e 1705 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1706 }
Azure.IoT.Build 13:606465879c57 1707 else if ((state->msgTickCounter = tickcounter_create()) == NULL)
Azure.IoT.Build 13:606465879c57 1708 {
Azure.IoT.Build 13:606465879c57 1709 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT.Build 13:606465879c57 1710 free(state);
Azure.IoT.Build 13:606465879c57 1711 state = NULL;
Azure.IoT.Build 13:606465879c57 1712 }
AzureIoTClient 11:31ebaeb51e1e 1713 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1714 {
AzureIoTClient 11:31ebaeb51e1e 1715 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1716 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1717 free(state);
AzureIoTClient 11:31ebaeb51e1e 1718 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1719 }
AzureIoTClient 11:31ebaeb51e1e 1720 else
AzureIoTClient 11:31ebaeb51e1e 1721 {
AzureIoTClient 11:31ebaeb51e1e 1722 if (construct_credential_information(upperConfig, state) != 0)
AzureIoTClient 11:31ebaeb51e1e 1723 {
AzureIoTClient 11:31ebaeb51e1e 1724 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1725 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1726 free(state);
AzureIoTClient 11:31ebaeb51e1e 1727 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1728 }
AzureIoTClient 11:31ebaeb51e1e 1729 else if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1730 {
AzureIoTClient 11:31ebaeb51e1e 1731 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1732 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1733 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1734 {
AzureIoTClient 11:31ebaeb51e1e 1735 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1736 }
AzureIoTClient 11:31ebaeb51e1e 1737 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1738 {
AzureIoTClient 11:31ebaeb51e1e 1739 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1740 }
AzureIoTClient 11:31ebaeb51e1e 1741 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1742 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1743 free(state);
AzureIoTClient 11:31ebaeb51e1e 1744 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1745 }
AzureIoTClient 11:31ebaeb51e1e 1746 else
AzureIoTClient 11:31ebaeb51e1e 1747 {
AzureIoTClient 12:658ca6865de2 1748 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 11:31ebaeb51e1e 1749 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1750 {
AzureIoTClient 11:31ebaeb51e1e 1751 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1752 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1753 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1754 {
AzureIoTClient 11:31ebaeb51e1e 1755 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1756 }
AzureIoTClient 11:31ebaeb51e1e 1757 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1758 {
AzureIoTClient 11:31ebaeb51e1e 1759 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1760 }
AzureIoTClient 11:31ebaeb51e1e 1761 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1762 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1763 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1764 free(state);
AzureIoTClient 11:31ebaeb51e1e 1765 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1766 }
AzureIoTClient 11:31ebaeb51e1e 1767 else
AzureIoTClient 11:31ebaeb51e1e 1768 {
AzureIoTClient 11:31ebaeb51e1e 1769 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [If the upperConfig contains a valid protocolGatewayHostName value the this shall be used for the hostname, otherwise the hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 11:31ebaeb51e1e 1770 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1771 {
AzureIoTClient 11:31ebaeb51e1e 1772 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 11:31ebaeb51e1e 1773 }
AzureIoTClient 11:31ebaeb51e1e 1774 else
AzureIoTClient 11:31ebaeb51e1e 1775 {
AzureIoTClient 11:31ebaeb51e1e 1776 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 11:31ebaeb51e1e 1777 }
AzureIoTClient 11:31ebaeb51e1e 1778
AzureIoTClient 11:31ebaeb51e1e 1779 if (state->hostAddress == NULL)
AzureIoTClient 11:31ebaeb51e1e 1780 {
AzureIoTClient 11:31ebaeb51e1e 1781 LogError("failure constructing host address.");
AzureIoTClient 11:31ebaeb51e1e 1782 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1783 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1784 {
AzureIoTClient 11:31ebaeb51e1e 1785 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1786 }
AzureIoTClient 11:31ebaeb51e1e 1787 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1788 {
AzureIoTClient 11:31ebaeb51e1e 1789 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1790 }
AzureIoTClient 11:31ebaeb51e1e 1791 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1792 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1793 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1794 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1795 free(state);
AzureIoTClient 11:31ebaeb51e1e 1796 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1797 }
AzureIoTClient 11:31ebaeb51e1e 1798 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1799 {
AzureIoTClient 11:31ebaeb51e1e 1800 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1801 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1802 {
AzureIoTClient 11:31ebaeb51e1e 1803 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1804 }
AzureIoTClient 11:31ebaeb51e1e 1805 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1806 {
AzureIoTClient 11:31ebaeb51e1e 1807 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1808 }
AzureIoTClient 11:31ebaeb51e1e 1809 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1810 STRING_delete(state->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1811 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1812 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1813 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1814 free(state);
AzureIoTClient 11:31ebaeb51e1e 1815 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1816 }
AzureIoTClient 11:31ebaeb51e1e 1817 else
AzureIoTClient 11:31ebaeb51e1e 1818 {
AzureIoTClient 12:658ca6865de2 1819 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransport_MQTT_Common_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 11:31ebaeb51e1e 1820 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 12:658ca6865de2 1821 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 11:31ebaeb51e1e 1822 state->isDestroyCalled = false;
AzureIoTClient 11:31ebaeb51e1e 1823 state->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 1824 state->isConnected = false;
AzureIoTClient 12:658ca6865de2 1825 state->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1826 state->isRecoverableError = true;
AzureIoTClient 11:31ebaeb51e1e 1827 state->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 1828 state->llClientHandle = NULL;
AzureIoTClient 11:31ebaeb51e1e 1829 state->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1830 state->portNum = 0;
AzureIoTClient 11:31ebaeb51e1e 1831 state->waitingToSend = waitingToSend;
AzureIoTClient 11:31ebaeb51e1e 1832 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1833 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 11:31ebaeb51e1e 1834 state->connectFailCount = 0;
AzureIoTClient 11:31ebaeb51e1e 1835 state->connectTick = 0;
AzureIoTClient 11:31ebaeb51e1e 1836 state->topic_MqttMessage = NULL;
AzureIoTClient 12:658ca6865de2 1837 state->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 1838 state->topic_NotifyState = NULL;
AzureIoTClient 11:31ebaeb51e1e 1839 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 12:658ca6865de2 1840 state->topic_DeviceMethods = NULL;
AzureIoTClient 11:31ebaeb51e1e 1841 state->log_trace = state->raw_trace = false;
AzureIoTClient 12:658ca6865de2 1842 state->retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 1843 srand((unsigned int)get_time(NULL));
AzureIoTClient 11:31ebaeb51e1e 1844 }
AzureIoTClient 11:31ebaeb51e1e 1845 }
AzureIoTClient 11:31ebaeb51e1e 1846 }
AzureIoTClient 11:31ebaeb51e1e 1847 }
AzureIoTClient 11:31ebaeb51e1e 1848 return state;
AzureIoTClient 11:31ebaeb51e1e 1849 }
AzureIoTClient 11:31ebaeb51e1e 1850
AzureIoTClient 11:31ebaeb51e1e 1851 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 1852 {
AzureIoTClient 11:31ebaeb51e1e 1853 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 1854 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 1855
AzureIoTClient 12:658ca6865de2 1856 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1857 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ if get_io_transport is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL. ] */
AzureIoTClient 11:31ebaeb51e1e 1858 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1859 {
AzureIoTClient 11:31ebaeb51e1e 1860 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1861 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1862 }
AzureIoTClient 12:658ca6865de2 1863 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 1864 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 1865 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1866 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1867 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1868 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1869 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 1870 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1871 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 1872 {
AzureIoTClient 11:31ebaeb51e1e 1873 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 1874 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1875 }
AzureIoTClient 12:658ca6865de2 1876 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1877 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 1878 {
AzureIoTClient 11:31ebaeb51e1e 1879 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 1880 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1881 }
AzureIoTClient 12:658ca6865de2 1882 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_006: [If the upperConfig's variables deviceId is an empty strings or length is greater then 128 then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1883 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 1884 {
AzureIoTClient 11:31ebaeb51e1e 1885 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 1886 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1887 }
AzureIoTClient 12:658ca6865de2 1888 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1889 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 1890 {
AzureIoTClient 11:31ebaeb51e1e 1891 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 1892 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1893 }
AzureIoTClient 12:658ca6865de2 1894 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1895 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 1896 {
AzureIoTClient 11:31ebaeb51e1e 1897 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 1898 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1899 }
AzureIoTClient 12:658ca6865de2 1900 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1901 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 1902 {
AzureIoTClient 11:31ebaeb51e1e 1903 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 1904 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1905 }
AzureIoTClient 11:31ebaeb51e1e 1906 else
AzureIoTClient 11:31ebaeb51e1e 1907 {
AzureIoTClient 11:31ebaeb51e1e 1908 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
Azure.IoT.Build 13:606465879c57 1909 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 1910 {
AzureIoTClient 11:31ebaeb51e1e 1911 result->get_io_transport = get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 1912 }
AzureIoTClient 11:31ebaeb51e1e 1913 }
AzureIoTClient 12:658ca6865de2 1914 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 1915 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 1916 return result;
AzureIoTClient 11:31ebaeb51e1e 1917 }
AzureIoTClient 11:31ebaeb51e1e 1918
AzureIoTClient 11:31ebaeb51e1e 1919 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1920 {
AzureIoTClient 11:31ebaeb51e1e 1921 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1922 xio_destroy(transport_data->xioTransport);
AzureIoTClient 11:31ebaeb51e1e 1923 transport_data->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1924
AzureIoTClient 11:31ebaeb51e1e 1925 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1926 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1927 }
AzureIoTClient 11:31ebaeb51e1e 1928
AzureIoTClient 11:31ebaeb51e1e 1929 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 1930 {
AzureIoTClient 12:658ca6865de2 1931 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1932 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 1933 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 1934 {
AzureIoTClient 11:31ebaeb51e1e 1935 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 1936
AzureIoTClient 11:31ebaeb51e1e 1937 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 1938
AzureIoTClient 11:31ebaeb51e1e 1939 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 1940 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 1941 {
AzureIoTClient 11:31ebaeb51e1e 1942 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 1943 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1944 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 1945 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1946 }
AzureIoTClient 12:658ca6865de2 1947 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 1948 {
AzureIoTClient 12:658ca6865de2 1949 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 1950 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1951 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 1952 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 1953 }
AzureIoTClient 11:31ebaeb51e1e 1954
AzureIoTClient 11:31ebaeb51e1e 1955 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1956 {
AzureIoTClient 11:31ebaeb51e1e 1957 case SAS_TOKEN_FROM_USER:
AzureIoTClient 11:31ebaeb51e1e 1958 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1959 break;
AzureIoTClient 11:31ebaeb51e1e 1960 case DEVICE_KEY:
AzureIoTClient 11:31ebaeb51e1e 1961 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1962 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1963 break;
AzureIoTClient 11:31ebaeb51e1e 1964 case X509:
AzureIoTClient 11:31ebaeb51e1e 1965 default:
AzureIoTClient 11:31ebaeb51e1e 1966 break;
AzureIoTClient 11:31ebaeb51e1e 1967 }
AzureIoTClient 11:31ebaeb51e1e 1968
AzureIoTClient 12:658ca6865de2 1969 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 1970 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1971 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1972 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1973 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 1974 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1975 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 1976 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1977 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1978 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1979
Azure.IoT.Build 13:606465879c57 1980 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 1981 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 11:31ebaeb51e1e 1982 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 1983 }
AzureIoTClient 11:31ebaeb51e1e 1984 }
AzureIoTClient 11:31ebaeb51e1e 1985
AzureIoTClient 12:658ca6865de2 1986 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 1987 {
AzureIoTClient 12:658ca6865de2 1988 int result;
AzureIoTClient 12:658ca6865de2 1989 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 1990 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 1991 {
AzureIoTClient 12:658ca6865de2 1992 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_042: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 1993 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 1994 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1995 }
AzureIoTClient 12:658ca6865de2 1996 else
AzureIoTClient 12:658ca6865de2 1997 {
AzureIoTClient 12:658ca6865de2 1998 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 1999 {
AzureIoTClient 12:658ca6865de2 2000 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_044: [IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall construct the get state topic string and the notify state topic string.] */
AzureIoTClient 12:658ca6865de2 2001 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2002 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2003 {
AzureIoTClient 12:658ca6865de2 2004 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2005 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 12:658ca6865de2 2006 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2007 }
AzureIoTClient 12:658ca6865de2 2008 else
AzureIoTClient 12:658ca6865de2 2009 {
AzureIoTClient 12:658ca6865de2 2010 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2011 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2012 result = 0;
AzureIoTClient 12:658ca6865de2 2013 }
AzureIoTClient 12:658ca6865de2 2014 }
AzureIoTClient 12:658ca6865de2 2015 else
AzureIoTClient 12:658ca6865de2 2016 {
AzureIoTClient 12:658ca6865de2 2017 result = 0;
AzureIoTClient 12:658ca6865de2 2018 }
AzureIoTClient 12:658ca6865de2 2019 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2020 {
AzureIoTClient 12:658ca6865de2 2021 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_044: [`IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin` shall construct the get state topic string and the notify state topic string.] */
AzureIoTClient 12:658ca6865de2 2022 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2023 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2024 {
AzureIoTClient 12:658ca6865de2 2025 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 12:658ca6865de2 2026 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2027 }
AzureIoTClient 12:658ca6865de2 2028 else
AzureIoTClient 12:658ca6865de2 2029 {
AzureIoTClient 12:658ca6865de2 2030 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2031 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2032 result = 0;
AzureIoTClient 12:658ca6865de2 2033 }
AzureIoTClient 12:658ca6865de2 2034 }
AzureIoTClient 12:658ca6865de2 2035 if (result == 0)
AzureIoTClient 12:658ca6865de2 2036 {
AzureIoTClient 12:658ca6865de2 2037 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2038 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2039 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2040 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2041 {
AzureIoTClient 12:658ca6865de2 2042 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2043 }
AzureIoTClient 12:658ca6865de2 2044 }
AzureIoTClient 12:658ca6865de2 2045 }
AzureIoTClient 12:658ca6865de2 2046 return result;
AzureIoTClient 12:658ca6865de2 2047 }
AzureIoTClient 12:658ca6865de2 2048
AzureIoTClient 12:658ca6865de2 2049 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2050 {
AzureIoTClient 12:658ca6865de2 2051 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2052 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_048: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall do nothing.] */
AzureIoTClient 12:658ca6865de2 2053 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2054 {
AzureIoTClient 12:658ca6865de2 2055 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2056 {
AzureIoTClient 12:658ca6865de2 2057 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_049: [If subscribe_state is set to IOTHUB_DEVICE_TWIN_DESIRED_STATE then IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall unsubscribe from the topic_GetState to the mqtt client.] */
AzureIoTClient 12:658ca6865de2 2058 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2059 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2060 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2061 }
AzureIoTClient 12:658ca6865de2 2062 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2063 {
AzureIoTClient 12:658ca6865de2 2064 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_050: [If subscribe_state is set to IOTHUB_DEVICE_TWIN_NOTIFICATION_STATE then IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall unsubscribe from the topic_NotifyState to the mqtt client.] */
AzureIoTClient 12:658ca6865de2 2065 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2066 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2067 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2068 }
AzureIoTClient 12:658ca6865de2 2069 }
AzureIoTClient 12:658ca6865de2 2070 else
AzureIoTClient 12:658ca6865de2 2071 {
AzureIoTClient 12:658ca6865de2 2072 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2073 }
AzureIoTClient 12:658ca6865de2 2074 }
AzureIoTClient 12:658ca6865de2 2075
AzureIoTClient 12:658ca6865de2 2076 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2077 {
AzureIoTClient 12:658ca6865de2 2078 int result;
AzureIoTClient 12:658ca6865de2 2079 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2080
AzureIoTClient 12:658ca6865de2 2081 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2082 {
AzureIoTClient 12:658ca6865de2 2083 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_001 : [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2084 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 2085 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2086 }
AzureIoTClient 12:658ca6865de2 2087 else
AzureIoTClient 12:658ca6865de2 2088 {
AzureIoTClient 12:658ca6865de2 2089 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2090 {
AzureIoTClient 12:658ca6865de2 2091 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2092 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2093 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2094 {
AzureIoTClient 12:658ca6865de2 2095 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2096 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 12:658ca6865de2 2097 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2098 }
AzureIoTClient 12:658ca6865de2 2099 else
AzureIoTClient 12:658ca6865de2 2100 {
AzureIoTClient 12:658ca6865de2 2101 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_003 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall set the signaling flag for DEVICE_METHOD topic for the receiver's topic list. ]*/
AzureIoTClient 12:658ca6865de2 2102 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2103 result = 0;
AzureIoTClient 12:658ca6865de2 2104 }
AzureIoTClient 12:658ca6865de2 2105 }
AzureIoTClient 12:658ca6865de2 2106 else
AzureIoTClient 12:658ca6865de2 2107 {
AzureIoTClient 12:658ca6865de2 2108 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_002 : [If the MQTT transport has been previously subscribed to DEVICE_METHOD topic IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall do nothing and return 0.]*/
AzureIoTClient 12:658ca6865de2 2109 result = 0;
AzureIoTClient 12:658ca6865de2 2110 }
AzureIoTClient 12:658ca6865de2 2111
AzureIoTClient 12:658ca6865de2 2112 if (result == 0)
AzureIoTClient 12:658ca6865de2 2113 {
AzureIoTClient 12:658ca6865de2 2114 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2115 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2116 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2117 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2118 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2119 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2120 {
AzureIoTClient 12:658ca6865de2 2121 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2122 }
AzureIoTClient 12:658ca6865de2 2123 }
AzureIoTClient 12:658ca6865de2 2124 }
AzureIoTClient 12:658ca6865de2 2125 return result;
AzureIoTClient 12:658ca6865de2 2126 }
AzureIoTClient 12:658ca6865de2 2127
AzureIoTClient 12:658ca6865de2 2128 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2129 {
AzureIoTClient 12:658ca6865de2 2130 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2131 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_008 : [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall do nothing and return.]*/
AzureIoTClient 12:658ca6865de2 2132 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2133 {
AzureIoTClient 12:658ca6865de2 2134 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_009 : [If the MQTT transport has not been subscribed to DEVICE_METHOD topic IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall do nothing and return.]*/
AzureIoTClient 12:658ca6865de2 2135 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2136 {
AzureIoTClient 12:658ca6865de2 2137 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2138 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2139 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2140
AzureIoTClient 12:658ca6865de2 2141 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2142 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2143 {
AzureIoTClient 12:658ca6865de2 2144 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2145 }
AzureIoTClient 12:658ca6865de2 2146
AzureIoTClient 12:658ca6865de2 2147 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_012 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall removes the signaling flag for DEVICE_METHOD topic from the receiver's topic list. ]*/
AzureIoTClient 12:658ca6865de2 2148 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2149 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2150 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2151 }
AzureIoTClient 12:658ca6865de2 2152 }
AzureIoTClient 12:658ca6865de2 2153 else
AzureIoTClient 12:658ca6865de2 2154 {
AzureIoTClient 12:658ca6865de2 2155 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2156 }
AzureIoTClient 12:658ca6865de2 2157 }
AzureIoTClient 12:658ca6865de2 2158
AzureIoTClient 11:31ebaeb51e1e 2159 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2160 {
AzureIoTClient 11:31ebaeb51e1e 2161 int result;
AzureIoTClient 11:31ebaeb51e1e 2162 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2163 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2164 {
AzureIoTClient 12:658ca6865de2 2165 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 2166 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 11:31ebaeb51e1e 2167 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2168 }
AzureIoTClient 11:31ebaeb51e1e 2169 else
AzureIoTClient 11:31ebaeb51e1e 2170 {
AzureIoTClient 12:658ca6865de2 2171 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransport_MQTT_Common_Subscribe shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the Message Topic.] */
AzureIoTClient 11:31ebaeb51e1e 2172 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2173 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2174 {
AzureIoTClient 11:31ebaeb51e1e 2175 LogError("Failure constructing Message Topic");
AzureIoTClient 11:31ebaeb51e1e 2176 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2177 }
AzureIoTClient 11:31ebaeb51e1e 2178 else
AzureIoTClient 11:31ebaeb51e1e 2179 {
AzureIoTClient 11:31ebaeb51e1e 2180 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2181 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_035: [If current packet state is not CONNACT, DISCONNECT_TYPE, or PACKET_TYPE_ERROR then IoTHubTransport_MQTT_Common_Subscribe shall set the packet state to SUBSCRIBE_TYPE.]*/
AzureIoTClient 11:31ebaeb51e1e 2182 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2183 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2184 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2185 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2186 {
AzureIoTClient 11:31ebaeb51e1e 2187 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2188 }
AzureIoTClient 11:31ebaeb51e1e 2189 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2190 }
AzureIoTClient 11:31ebaeb51e1e 2191 }
AzureIoTClient 11:31ebaeb51e1e 2192 return result;
AzureIoTClient 11:31ebaeb51e1e 2193 }
AzureIoTClient 11:31ebaeb51e1e 2194
AzureIoTClient 11:31ebaeb51e1e 2195 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2196 {
AzureIoTClient 11:31ebaeb51e1e 2197 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2198 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2199 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2200 {
AzureIoTClient 12:658ca6865de2 2201 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransport_MQTT_Common_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
AzureIoTClient 11:31ebaeb51e1e 2202 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2203 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2204 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2205 {
AzureIoTClient 11:31ebaeb51e1e 2206 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2207 }
AzureIoTClient 11:31ebaeb51e1e 2208 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2209 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2210 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2211 }
AzureIoTClient 11:31ebaeb51e1e 2212 else
AzureIoTClient 11:31ebaeb51e1e 2213 {
AzureIoTClient 11:31ebaeb51e1e 2214 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2215 }
AzureIoTClient 11:31ebaeb51e1e 2216 }
AzureIoTClient 11:31ebaeb51e1e 2217
AzureIoTClient 12:658ca6865de2 2218 IOTHUB_PROCESS_ITEM_RESULT IoTHubTransport_MQTT_Common_ProcessItem(TRANSPORT_LL_HANDLE handle, IOTHUB_IDENTITY_TYPE item_type, IOTHUB_IDENTITY_INFO* iothub_item)
AzureIoTClient 12:658ca6865de2 2219 {
AzureIoTClient 12:658ca6865de2 2220 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2221 /* Codes_SRS_IOTHUBCLIENT_LL_07_001: [ If handle or iothub_item are NULL then IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2222 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2223 {
AzureIoTClient 12:658ca6865de2 2224 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2225 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2226 }
AzureIoTClient 12:658ca6865de2 2227 else
AzureIoTClient 12:658ca6865de2 2228 {
AzureIoTClient 12:658ca6865de2 2229 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2230
AzureIoTClient 12:658ca6865de2 2231 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2232 {
AzureIoTClient 12:658ca6865de2 2233 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2234 {
AzureIoTClient 12:658ca6865de2 2235 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2236 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2237 {
AzureIoTClient 12:658ca6865de2 2238 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2239 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2240 }
AzureIoTClient 12:658ca6865de2 2241 else
AzureIoTClient 12:658ca6865de2 2242 {
AzureIoTClient 12:658ca6865de2 2243 /*Codes_SRS_IOTHUBCLIENT_LL_07_003: [ IoTHubTransport_MQTT_Common_ProcessItem shall publish a message to the mqtt protocol with the message topic for the message type.]*/
AzureIoTClient 12:658ca6865de2 2244 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2245 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2246 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2247
AzureIoTClient 12:658ca6865de2 2248 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2249 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2250
AzureIoTClient 12:658ca6865de2 2251 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2252 {
AzureIoTClient 12:658ca6865de2 2253 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2254
AzureIoTClient 12:658ca6865de2 2255 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2256 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2257 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2258 }
AzureIoTClient 12:658ca6865de2 2259 else
AzureIoTClient 12:658ca6865de2 2260 {
AzureIoTClient 12:658ca6865de2 2261 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2262 }
AzureIoTClient 12:658ca6865de2 2263 }
AzureIoTClient 12:658ca6865de2 2264 }
AzureIoTClient 12:658ca6865de2 2265 else
AzureIoTClient 12:658ca6865de2 2266 {
AzureIoTClient 12:658ca6865de2 2267 /* Codes_SRS_IOTHUBCLIENT_LL_07_006: [ If the item_type is not a supported type IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_CONTINUE. ]*/
AzureIoTClient 12:658ca6865de2 2268 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2269 }
AzureIoTClient 12:658ca6865de2 2270 }
AzureIoTClient 12:658ca6865de2 2271 else
AzureIoTClient 12:658ca6865de2 2272 {
AzureIoTClient 12:658ca6865de2 2273 /* Codes_SRS_IOTHUBCLIENT_LL_07_002: [ If the mqtt is not ready to publish messages IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_NOT_CONNECTED. ] */
AzureIoTClient 12:658ca6865de2 2274 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2275 }
AzureIoTClient 12:658ca6865de2 2276 }
AzureIoTClient 12:658ca6865de2 2277 return result;
AzureIoTClient 12:658ca6865de2 2278 }
AzureIoTClient 12:658ca6865de2 2279
AzureIoTClient 12:658ca6865de2 2280 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_054: [ IoTHubTransport_MQTT_Common_DoWork shall subscribe to the Notification and get_state Topics if they are defined. ] */
AzureIoTClient 11:31ebaeb51e1e 2281 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2282 {
AzureIoTClient 12:658ca6865de2 2283 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransport_MQTT_Common_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2284 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2285 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2286 {
AzureIoTClient 11:31ebaeb51e1e 2287 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2288
AzureIoTClient 11:31ebaeb51e1e 2289 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2290 {
AzureIoTClient 11:31ebaeb51e1e 2291 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2292 }
AzureIoTClient 11:31ebaeb51e1e 2293 else
AzureIoTClient 11:31ebaeb51e1e 2294 {
AzureIoTClient 11:31ebaeb51e1e 2295 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2296 {
AzureIoTClient 11:31ebaeb51e1e 2297 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2298 }
AzureIoTClient 11:31ebaeb51e1e 2299 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2300 {
AzureIoTClient 12:658ca6865de2 2301 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2302 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2303 {
AzureIoTClient 12:658ca6865de2 2304 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_055: [ IoTHubTransport_MQTT_Common_DoWork shall send a device twin get property message upon successfully retrieving a SUBACK on device twin topics. ] */
AzureIoTClient 12:658ca6865de2 2305 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2306 {
AzureIoTClient 12:658ca6865de2 2307 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2308 }
AzureIoTClient 12:658ca6865de2 2309 else
AzureIoTClient 12:658ca6865de2 2310 {
AzureIoTClient 12:658ca6865de2 2311 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2312 }
AzureIoTClient 12:658ca6865de2 2313 }
AzureIoTClient 11:31ebaeb51e1e 2314 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2315 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2316 }
AzureIoTClient 11:31ebaeb51e1e 2317 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2318 {
AzureIoTClient 11:31ebaeb51e1e 2319 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2320 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2321 {
AzureIoTClient 11:31ebaeb51e1e 2322 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2323 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2324 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2325
Azure.IoT.Build 13:606465879c57 2326 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2327 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2328 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_033: [IoTHubTransport_MQTT_Common_DoWork shall iterate through the Waiting Acknowledge messages looking for any message that has been waiting longer than 2 min.]*/
AzureIoTClient 11:31ebaeb51e1e 2329 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2330 {
AzureIoTClient 12:658ca6865de2 2331 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransport_MQTT_Common_DoWork has resent the message two times then it shall fail the message] */
AzureIoTClient 11:31ebaeb51e1e 2332 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2333 {
AzureIoTClient 11:31ebaeb51e1e 2334 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2335 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2336 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2337 }
AzureIoTClient 11:31ebaeb51e1e 2338 else
AzureIoTClient 11:31ebaeb51e1e 2339 {
AzureIoTClient 11:31ebaeb51e1e 2340 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2341 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2342 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2343 {
AzureIoTClient 11:31ebaeb51e1e 2344 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2345 }
AzureIoTClient 11:31ebaeb51e1e 2346 else
AzureIoTClient 11:31ebaeb51e1e 2347 {
AzureIoTClient 11:31ebaeb51e1e 2348 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2349 {
AzureIoTClient 11:31ebaeb51e1e 2350 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2351 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2352 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2353 }
AzureIoTClient 11:31ebaeb51e1e 2354 }
AzureIoTClient 11:31ebaeb51e1e 2355 }
AzureIoTClient 11:31ebaeb51e1e 2356 }
AzureIoTClient 11:31ebaeb51e1e 2357 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2358 }
AzureIoTClient 11:31ebaeb51e1e 2359
AzureIoTClient 11:31ebaeb51e1e 2360 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2361 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2362 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2363 {
AzureIoTClient 11:31ebaeb51e1e 2364 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2365 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2366 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2367
AzureIoTClient 12:658ca6865de2 2368 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2369 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2370 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2371 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2372 {
AzureIoTClient 11:31ebaeb51e1e 2373 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2374 }
AzureIoTClient 11:31ebaeb51e1e 2375 else
AzureIoTClient 11:31ebaeb51e1e 2376 {
AzureIoTClient 12:658ca6865de2 2377 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_029: [IoTHubTransport_MQTT_Common_DoWork shall create a MQTT_MESSAGE_HANDLE and pass this to a call to mqtt_client_publish.] */
AzureIoTClient 11:31ebaeb51e1e 2378 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2379 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2380 {
AzureIoTClient 11:31ebaeb51e1e 2381 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2382 }
AzureIoTClient 11:31ebaeb51e1e 2383 else
AzureIoTClient 11:31ebaeb51e1e 2384 {
AzureIoTClient 11:31ebaeb51e1e 2385 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2386 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2387 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2388 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2389 {
AzureIoTClient 11:31ebaeb51e1e 2390 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2391 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2392 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2393 }
AzureIoTClient 11:31ebaeb51e1e 2394 else
AzureIoTClient 11:31ebaeb51e1e 2395 {
AzureIoTClient 11:31ebaeb51e1e 2396 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2397 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2398 }
AzureIoTClient 11:31ebaeb51e1e 2399 }
AzureIoTClient 11:31ebaeb51e1e 2400 }
AzureIoTClient 11:31ebaeb51e1e 2401 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2402 }
AzureIoTClient 11:31ebaeb51e1e 2403 }
AzureIoTClient 12:658ca6865de2 2404 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransport_MQTT_Common_DoWork shall call mqtt_client_dowork everytime it is called if it is isConnected.] */
AzureIoTClient 11:31ebaeb51e1e 2405 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2406 }
AzureIoTClient 11:31ebaeb51e1e 2407 }
AzureIoTClient 11:31ebaeb51e1e 2408 }
AzureIoTClient 11:31ebaeb51e1e 2409
AzureIoTClient 11:31ebaeb51e1e 2410 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2411 {
AzureIoTClient 11:31ebaeb51e1e 2412 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2413
AzureIoTClient 11:31ebaeb51e1e 2414 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2415 {
AzureIoTClient 12:658ca6865de2 2416 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransport_MQTT_Common_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
AzureIoTClient 11:31ebaeb51e1e 2417 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2418 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2419 }
AzureIoTClient 11:31ebaeb51e1e 2420 else
AzureIoTClient 11:31ebaeb51e1e 2421 {
AzureIoTClient 11:31ebaeb51e1e 2422 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2423 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2424 {
AzureIoTClient 12:658ca6865de2 2425 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_025: [IoTHubTransport_MQTT_Common_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 11:31ebaeb51e1e 2426 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2427 }
AzureIoTClient 11:31ebaeb51e1e 2428 else
AzureIoTClient 11:31ebaeb51e1e 2429 {
AzureIoTClient 12:658ca6865de2 2430 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_024: [IoTHubTransport_MQTT_Common_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 11:31ebaeb51e1e 2431 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2432 }
AzureIoTClient 11:31ebaeb51e1e 2433 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2434 }
AzureIoTClient 11:31ebaeb51e1e 2435 return result;
AzureIoTClient 11:31ebaeb51e1e 2436 }
AzureIoTClient 11:31ebaeb51e1e 2437
AzureIoTClient 11:31ebaeb51e1e 2438 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2439 {
AzureIoTClient 12:658ca6865de2 2440 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
AzureIoTClient 11:31ebaeb51e1e 2441 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2442 if (
AzureIoTClient 11:31ebaeb51e1e 2443 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2444 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2445 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2446 )
AzureIoTClient 11:31ebaeb51e1e 2447 {
AzureIoTClient 11:31ebaeb51e1e 2448 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2449 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2450 }
AzureIoTClient 11:31ebaeb51e1e 2451 else
AzureIoTClient 11:31ebaeb51e1e 2452 {
AzureIoTClient 11:31ebaeb51e1e 2453 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2454 /* 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 11:31ebaeb51e1e 2455 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2456 {
AzureIoTClient 11:31ebaeb51e1e 2457 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2458 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2459 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2460 }
AzureIoTClient 11:31ebaeb51e1e 2461 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2462 {
AzureIoTClient 11:31ebaeb51e1e 2463 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2464 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2465 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2466 }
AzureIoTClient 11:31ebaeb51e1e 2467 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2468 {
AzureIoTClient 11:31ebaeb51e1e 2469 /* 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 11:31ebaeb51e1e 2470 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2471 /* 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 IoTHubTransport_MQTT_Common_SetOption shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2472 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2473 {
AzureIoTClient 11:31ebaeb51e1e 2474 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 11:31ebaeb51e1e 2475 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 2476 {
AzureIoTClient 12:658ca6865de2 2477 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is isConnected when the keepalive is set then IoTHubTransport_MQTT_Common_SetOption shall disconnect and reconnect with the specified keepalive value.] */
AzureIoTClient 11:31ebaeb51e1e 2478 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2479 }
AzureIoTClient 11:31ebaeb51e1e 2480 }
AzureIoTClient 11:31ebaeb51e1e 2481 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2482 }
AzureIoTClient 11:31ebaeb51e1e 2483 /* 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 11:31ebaeb51e1e 2484 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2485 {
AzureIoTClient 11:31ebaeb51e1e 2486 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2487 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2488 }
AzureIoTClient 11:31ebaeb51e1e 2489 /* 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 11:31ebaeb51e1e 2490 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2491 {
AzureIoTClient 11:31ebaeb51e1e 2492 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2493 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2494 }
AzureIoTClient 11:31ebaeb51e1e 2495 else
AzureIoTClient 11:31ebaeb51e1e 2496 {
AzureIoTClient 12:658ca6865de2 2497 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_032: [IoTHubTransport_MQTT_Common_SetOption shall pass down the option to xio_setoption if the option parameter is not a known option string for the MQTT transport.] */
AzureIoTClient 11:31ebaeb51e1e 2498 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2499 {
AzureIoTClient 11:31ebaeb51e1e 2500 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2501 {
AzureIoTClient 11:31ebaeb51e1e 2502 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2503 }
AzureIoTClient 11:31ebaeb51e1e 2504 else
AzureIoTClient 11:31ebaeb51e1e 2505 {
AzureIoTClient 12:658ca6865de2 2506 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2507 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2508 }
AzureIoTClient 11:31ebaeb51e1e 2509 }
AzureIoTClient 11:31ebaeb51e1e 2510 else
AzureIoTClient 11:31ebaeb51e1e 2511 {
AzureIoTClient 11:31ebaeb51e1e 2512 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2513 }
AzureIoTClient 11:31ebaeb51e1e 2514 }
AzureIoTClient 11:31ebaeb51e1e 2515 }
AzureIoTClient 11:31ebaeb51e1e 2516 return result;
AzureIoTClient 11:31ebaeb51e1e 2517 }
AzureIoTClient 11:31ebaeb51e1e 2518
AzureIoTClient 11:31ebaeb51e1e 2519 IOTHUB_DEVICE_HANDLE IoTHubTransport_MQTT_Common_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2520 {
AzureIoTClient 11:31ebaeb51e1e 2521 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2522 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2523
AzureIoTClient 12:658ca6865de2 2524 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2525 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2526 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2527 {
AzureIoTClient 12:658ca6865de2 2528 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2529 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2530 }
AzureIoTClient 11:31ebaeb51e1e 2531 else
AzureIoTClient 11:31ebaeb51e1e 2532 {
AzureIoTClient 11:31ebaeb51e1e 2533 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2534
AzureIoTClient 12:658ca6865de2 2535 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2536 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2537 {
AzureIoTClient 12:658ca6865de2 2538 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2539 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2540 }
AzureIoTClient 12:658ca6865de2 2541 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2542 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2543 {
AzureIoTClient 12:658ca6865de2 2544 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2545 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2546 }
AzureIoTClient 11:31ebaeb51e1e 2547 else
AzureIoTClient 11:31ebaeb51e1e 2548 {
AzureIoTClient 12:658ca6865de2 2549 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_003: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceId or deviceKey do not match the deviceId and deviceKey passed in during IoTHubTransport_MQTT_Common_Create.]
AzureIoTClient 11:31ebaeb51e1e 2550 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2551 {
AzureIoTClient 12:658ca6865de2 2552 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2553 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2554 }
AzureIoTClient 11:31ebaeb51e1e 2555 else if ( (transport_data->transport_creds.credential_type == DEVICE_KEY) && (strcmp(STRING_c_str(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey), device->deviceKey) != 0))
AzureIoTClient 11:31ebaeb51e1e 2556 {
AzureIoTClient 12:658ca6865de2 2557 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2558 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2559 }
AzureIoTClient 11:31ebaeb51e1e 2560 else
AzureIoTClient 11:31ebaeb51e1e 2561 {
AzureIoTClient 11:31ebaeb51e1e 2562 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2563 {
AzureIoTClient 11:31ebaeb51e1e 2564 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2565 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2566 }
AzureIoTClient 11:31ebaeb51e1e 2567 else
AzureIoTClient 11:31ebaeb51e1e 2568 {
AzureIoTClient 11:31ebaeb51e1e 2569 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2570 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransport_MQTT_Common_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
AzureIoTClient 11:31ebaeb51e1e 2571 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2572 }
AzureIoTClient 11:31ebaeb51e1e 2573 }
AzureIoTClient 11:31ebaeb51e1e 2574 }
AzureIoTClient 11:31ebaeb51e1e 2575 }
AzureIoTClient 11:31ebaeb51e1e 2576
AzureIoTClient 11:31ebaeb51e1e 2577 return result;
AzureIoTClient 11:31ebaeb51e1e 2578 }
AzureIoTClient 11:31ebaeb51e1e 2579
AzureIoTClient 12:658ca6865de2 2580 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ IoTHubTransport_MQTT_Common_Unregister shall return. ]
AzureIoTClient 11:31ebaeb51e1e 2581 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2582 {
AzureIoTClient 11:31ebaeb51e1e 2583 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2584 {
AzureIoTClient 11:31ebaeb51e1e 2585 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2586
AzureIoTClient 11:31ebaeb51e1e 2587 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2588 }
AzureIoTClient 11:31ebaeb51e1e 2589 }
AzureIoTClient 11:31ebaeb51e1e 2590
AzureIoTClient 11:31ebaeb51e1e 2591 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2592 {
AzureIoTClient 11:31ebaeb51e1e 2593 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2594 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2595 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2596 {
AzureIoTClient 11:31ebaeb51e1e 2597 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2598 }
AzureIoTClient 11:31ebaeb51e1e 2599 else
AzureIoTClient 11:31ebaeb51e1e 2600 {
AzureIoTClient 12:658ca6865de2 2601 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransport_MQTT_Common_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
AzureIoTClient 11:31ebaeb51e1e 2602 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 11:31ebaeb51e1e 2603 }
AzureIoTClient 11:31ebaeb51e1e 2604 return result;
AzureIoTClient 11:31ebaeb51e1e 2605 }