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@14:4dc2b011be33, 2017-01-08 (annotated)

Committer:
AzureIoTClient
Date:
Sun Jan 08 11:11:42 2017 -0800
Revision:
14:4dc2b011be33
Parent:
13:606465879c57
Child:
15:81c95c94c8d7
1.1.3

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 14:4dc2b011be33 52 #define TOUPPER(c) (((c>='a') && (c<='z'))?c-'a'+'A':c)
AzureIoTClient 14:4dc2b011be33 53
AzureIoTClient 12:658ca6865de2 54 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 55 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 56
AzureIoTClient 12:658ca6865de2 57 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 58 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 59
AzureIoTClient 11:31ebaeb51e1e 60 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 61 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 62
AzureIoTClient 12:658ca6865de2 63 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 64 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 65
AzureIoTClient 12:658ca6865de2 66 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 67
AzureIoTClient 11:31ebaeb51e1e 68 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 69 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 70 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 14:4dc2b011be33 71 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
AzureIoTClient 12:658ca6865de2 72
AzureIoTClient 12:658ca6865de2 73 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 74
AzureIoTClient 11:31ebaeb51e1e 75 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 76 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 77 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 78 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 79 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 80 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 81 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 82
AzureIoTClient 11:31ebaeb51e1e 83 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 84 {
AzureIoTClient 11:31ebaeb51e1e 85 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 86 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 87 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 88
AzureIoTClient 11:31ebaeb51e1e 89 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 90 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 91 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 92 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 93 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 94 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 95 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 96 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 97 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 98 };
AzureIoTClient 11:31ebaeb51e1e 99
AzureIoTClient 12:658ca6865de2 100 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 101 {
AzureIoTClient 12:658ca6865de2 102 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 103 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 104 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 105
AzureIoTClient 11:31ebaeb51e1e 106 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 107 {
AzureIoTClient 11:31ebaeb51e1e 108 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 109 X509,
AzureIoTClient 11:31ebaeb51e1e 110 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 111 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 112 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 113
AzureIoTClient 12:658ca6865de2 114 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 115
AzureIoTClient 12:658ca6865de2 116 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 117 {
AzureIoTClient 12:658ca6865de2 118 IOTHUB_CLIENT_RETRY_POLICY retryPolicy;
AzureIoTClient 12:658ca6865de2 119 size_t retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 120 RETRY_POLICY fnRetryPolicy;
AzureIoTClient 12:658ca6865de2 121 time_t start;
AzureIoTClient 12:658ca6865de2 122 time_t stop;
AzureIoTClient 12:658ca6865de2 123 time_t lastConnect;
AzureIoTClient 12:658ca6865de2 124 bool retryStarted;
AzureIoTClient 12:658ca6865de2 125 bool retryExpired;
AzureIoTClient 12:658ca6865de2 126 bool firstAttempt;
AzureIoTClient 12:658ca6865de2 127 size_t retrycount;
AzureIoTClient 12:658ca6865de2 128 size_t delayFromLastConnectToRetry;
AzureIoTClient 12:658ca6865de2 129 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 130
AzureIoTClient 11:31ebaeb51e1e 131 typedef struct MQTT_TRANSPORT_CREDENTIALS_TAG
AzureIoTClient 11:31ebaeb51e1e 132 {
AzureIoTClient 11:31ebaeb51e1e 133 MQTT_TRANSPORT_CREDENTIAL_TYPE credential_type;
AzureIoTClient 11:31ebaeb51e1e 134 union
AzureIoTClient 11:31ebaeb51e1e 135 {
AzureIoTClient 11:31ebaeb51e1e 136 // Key associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 137 STRING_HANDLE deviceKey;
AzureIoTClient 11:31ebaeb51e1e 138
AzureIoTClient 11:31ebaeb51e1e 139 // SAS associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 140 STRING_HANDLE deviceSasToken;
AzureIoTClient 11:31ebaeb51e1e 141
AzureIoTClient 11:31ebaeb51e1e 142 } CREDENTIAL_VALUE;
AzureIoTClient 11:31ebaeb51e1e 143 } MQTT_TRANSPORT_CREDENTIALS;
AzureIoTClient 11:31ebaeb51e1e 144
AzureIoTClient 11:31ebaeb51e1e 145 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 146 {
AzureIoTClient 11:31ebaeb51e1e 147 // Topic control
AzureIoTClient 11:31ebaeb51e1e 148 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 149 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 150 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 151 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 152
AzureIoTClient 12:658ca6865de2 153 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 154
AzureIoTClient 11:31ebaeb51e1e 155 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 156
AzureIoTClient 11:31ebaeb51e1e 157 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 158 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 159 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 160 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 161 int portNum;
AzureIoTClient 11:31ebaeb51e1e 162
AzureIoTClient 11:31ebaeb51e1e 163 // Authentication
AzureIoTClient 11:31ebaeb51e1e 164 MQTT_TRANSPORT_CREDENTIALS transport_creds;
AzureIoTClient 11:31ebaeb51e1e 165
AzureIoTClient 11:31ebaeb51e1e 166 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 167
AzureIoTClient 11:31ebaeb51e1e 168 // 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 169 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 170 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 171 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 172 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 173 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 174 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 175
AzureIoTClient 11:31ebaeb51e1e 176 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 177 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 178
AzureIoTClient 11:31ebaeb51e1e 179 // Protocol
AzureIoTClient 11:31ebaeb51e1e 180 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 181 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 182
AzureIoTClient 11:31ebaeb51e1e 183 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 184 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 185
AzureIoTClient 11:31ebaeb51e1e 186 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 187 bool isRegistered;
AzureIoTClient 11:31ebaeb51e1e 188 bool isConnected;
AzureIoTClient 11:31ebaeb51e1e 189 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 190 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 191 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 192 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 193 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 194 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 195 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 196 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 197 bool raw_trace;
Azure.IoT.Build 13:606465879c57 198 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 199
AzureIoTClient 11:31ebaeb51e1e 200 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 201 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 202 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 203
AzureIoTClient 11:31ebaeb51e1e 204 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 205 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 206
AzureIoTClient 11:31ebaeb51e1e 207 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 208 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 209
AzureIoTClient 12:658ca6865de2 210 //Retry Logic
AzureIoTClient 12:658ca6865de2 211 RETRY_LOGIC* retryLogic;
AzureIoTClient 11:31ebaeb51e1e 212 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
AzureIoTClient 11:31ebaeb51e1e 213
AzureIoTClient 12:658ca6865de2 214 typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
AzureIoTClient 12:658ca6865de2 215 {
Azure.IoT.Build 13:606465879c57 216 tickcounter_ms_t msgPublishTime;
AzureIoTClient 12:658ca6865de2 217 size_t retryCount;
AzureIoTClient 12:658ca6865de2 218 IOTHUB_IDENTITY_TYPE iothub_type;
AzureIoTClient 12:658ca6865de2 219 uint16_t packet_id;
AzureIoTClient 12:658ca6865de2 220 uint32_t iothub_msg_id;
AzureIoTClient 12:658ca6865de2 221 IOTHUB_DEVICE_TWIN* device_twin_data;
AzureIoTClient 12:658ca6865de2 222 DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
AzureIoTClient 12:658ca6865de2 223 DLIST_ENTRY entry;
AzureIoTClient 12:658ca6865de2 224 } MQTT_DEVICE_TWIN_ITEM;
AzureIoTClient 12:658ca6865de2 225
AzureIoTClient 11:31ebaeb51e1e 226 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
AzureIoTClient 11:31ebaeb51e1e 227 {
Azure.IoT.Build 13:606465879c57 228 tickcounter_ms_t msgPublishTime;
AzureIoTClient 11:31ebaeb51e1e 229 size_t retryCount;
AzureIoTClient 11:31ebaeb51e1e 230 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 11:31ebaeb51e1e 231 void* context;
AzureIoTClient 11:31ebaeb51e1e 232 uint16_t packet_id;
AzureIoTClient 11:31ebaeb51e1e 233 DLIST_ENTRY entry;
AzureIoTClient 11:31ebaeb51e1e 234 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
AzureIoTClient 11:31ebaeb51e1e 235
AzureIoTClient 14:4dc2b011be33 236 typedef struct DEVICE_METHOD_INFO_TAG
AzureIoTClient 14:4dc2b011be33 237 {
AzureIoTClient 14:4dc2b011be33 238 STRING_HANDLE request_id;
AzureIoTClient 14:4dc2b011be33 239 } DEVICE_METHOD_INFO;
AzureIoTClient 14:4dc2b011be33 240
AzureIoTClient 12:658ca6865de2 241 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 242 {
AzureIoTClient 12:658ca6865de2 243 int result;
AzureIoTClient 12:658ca6865de2 244
AzureIoTClient 12:658ca6865de2 245 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 246 {
AzureIoTClient 12:658ca6865de2 247 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 248 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 249 *permit = true;
AzureIoTClient 12:658ca6865de2 250
AzureIoTClient 12:658ca6865de2 251 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 252
AzureIoTClient 12:658ca6865de2 253 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 254 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 255 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 256 */
AzureIoTClient 12:658ca6865de2 257
AzureIoTClient 12:658ca6865de2 258 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 259 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 260 {
AzureIoTClient 12:658ca6865de2 261 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 262 }
AzureIoTClient 12:658ca6865de2 263 else
AzureIoTClient 12:658ca6865de2 264 {
AzureIoTClient 12:658ca6865de2 265 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 266 }
AzureIoTClient 12:658ca6865de2 267
AzureIoTClient 12:658ca6865de2 268 result = 0;
AzureIoTClient 12:658ca6865de2 269 }
AzureIoTClient 12:658ca6865de2 270 else
AzureIoTClient 12:658ca6865de2 271 {
AzureIoTClient 12:658ca6865de2 272 result = __LINE__;
AzureIoTClient 12:658ca6865de2 273 }
AzureIoTClient 12:658ca6865de2 274 return result;
AzureIoTClient 12:658ca6865de2 275 }
AzureIoTClient 12:658ca6865de2 276
AzureIoTClient 12:658ca6865de2 277 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 278 {
AzureIoTClient 12:658ca6865de2 279 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 280 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 281 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 282 {
AzureIoTClient 12:658ca6865de2 283 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 284 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 285 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 286 {
AzureIoTClient 12:658ca6865de2 287 case IOTHUB_CLIENT_RETRY_NONE:
AzureIoTClient 12:658ca6865de2 288 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 289 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 290 break;
AzureIoTClient 12:658ca6865de2 291 case IOTHUB_CLIENT_RETRY_IMMEDIATE:
AzureIoTClient 12:658ca6865de2 292 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 293 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 294 break;
AzureIoTClient 12:658ca6865de2 295 case IOTHUB_CLIENT_RETRY_INTERVAL:
AzureIoTClient 12:658ca6865de2 296 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 297 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 298 break;
AzureIoTClient 12:658ca6865de2 299 case IOTHUB_CLIENT_RETRY_LINEAR_BACKOFF:
AzureIoTClient 12:658ca6865de2 300 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 301 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 302 break;
AzureIoTClient 12:658ca6865de2 303 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF:
AzureIoTClient 12:658ca6865de2 304 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 305 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 306 break;
AzureIoTClient 12:658ca6865de2 307 case IOTHUB_CLIENT_RETRY_RANDOM:
AzureIoTClient 12:658ca6865de2 308 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 309 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 310 break;
AzureIoTClient 12:658ca6865de2 311 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 312 default:
AzureIoTClient 12:658ca6865de2 313 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 314 break;
AzureIoTClient 12:658ca6865de2 315 }
AzureIoTClient 12:658ca6865de2 316 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 317 retryLogic->stop = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 318 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 319 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 320 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 321 retryLogic->retryExpired = false;
AzureIoTClient 12:658ca6865de2 322 retryLogic->firstAttempt = false;
AzureIoTClient 12:658ca6865de2 323 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 324 }
AzureIoTClient 12:658ca6865de2 325 else
AzureIoTClient 12:658ca6865de2 326 {
AzureIoTClient 12:658ca6865de2 327 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 328 }
AzureIoTClient 12:658ca6865de2 329 return retryLogic;
AzureIoTClient 12:658ca6865de2 330 }
AzureIoTClient 12:658ca6865de2 331
AzureIoTClient 12:658ca6865de2 332 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 333 {
AzureIoTClient 12:658ca6865de2 334 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 335 {
AzureIoTClient 12:658ca6865de2 336 free(retryLogic);
AzureIoTClient 12:658ca6865de2 337 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 338 }
AzureIoTClient 12:658ca6865de2 339 }
AzureIoTClient 12:658ca6865de2 340
AzureIoTClient 12:658ca6865de2 341 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 342 static void StartRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 343 {
AzureIoTClient 12:658ca6865de2 344 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 345 {
AzureIoTClient 12:658ca6865de2 346 if (retryLogic->retryStarted == false)
AzureIoTClient 12:658ca6865de2 347 {
AzureIoTClient 12:658ca6865de2 348 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 349 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 350 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 351 }
AzureIoTClient 12:658ca6865de2 352
AzureIoTClient 12:658ca6865de2 353 if (retryLogic->firstAttempt == false)
AzureIoTClient 12:658ca6865de2 354 {
AzureIoTClient 12:658ca6865de2 355 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 356 }
AzureIoTClient 12:658ca6865de2 357 }
AzureIoTClient 12:658ca6865de2 358 else
AzureIoTClient 12:658ca6865de2 359 {
AzureIoTClient 12:658ca6865de2 360 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 361 }
AzureIoTClient 12:658ca6865de2 362 }
AzureIoTClient 12:658ca6865de2 363
AzureIoTClient 12:658ca6865de2 364 // Called when connected
AzureIoTClient 12:658ca6865de2 365 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 366 {
AzureIoTClient 12:658ca6865de2 367 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 368 {
AzureIoTClient 12:658ca6865de2 369 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 370 {
AzureIoTClient 12:658ca6865de2 371 retryLogic->stop = get_time(NULL);
AzureIoTClient 12:658ca6865de2 372 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 373 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 374 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 375 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 376 }
AzureIoTClient 12:658ca6865de2 377 else
AzureIoTClient 12:658ca6865de2 378 {
AzureIoTClient 12:658ca6865de2 379 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 380 }
AzureIoTClient 12:658ca6865de2 381 }
AzureIoTClient 12:658ca6865de2 382 else
AzureIoTClient 12:658ca6865de2 383 {
AzureIoTClient 12:658ca6865de2 384 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 385 }
AzureIoTClient 12:658ca6865de2 386 }
AzureIoTClient 12:658ca6865de2 387
AzureIoTClient 12:658ca6865de2 388 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 389 {
AzureIoTClient 12:658ca6865de2 390 int result;
AzureIoTClient 12:658ca6865de2 391 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 392 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 393 {
AzureIoTClient 12:658ca6865de2 394 /* 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 395 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 396 result = __LINE__;
AzureIoTClient 12:658ca6865de2 397 }
AzureIoTClient 12:658ca6865de2 398 else
AzureIoTClient 12:658ca6865de2 399 {
AzureIoTClient 12:658ca6865de2 400 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 401 {
AzureIoTClient 12:658ca6865de2 402 /*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 403 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 404 }
AzureIoTClient 12:658ca6865de2 405 else
AzureIoTClient 12:658ca6865de2 406 {
AzureIoTClient 12:658ca6865de2 407 /*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 408 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 409 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 410 }
AzureIoTClient 12:658ca6865de2 411
AzureIoTClient 12:658ca6865de2 412 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 413 {
AzureIoTClient 12:658ca6865de2 414 /*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 415 result = 0;
AzureIoTClient 12:658ca6865de2 416 }
AzureIoTClient 12:658ca6865de2 417 else
AzureIoTClient 12:658ca6865de2 418 {
AzureIoTClient 12:658ca6865de2 419 /*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 420 LogError("Retry Logic is not created");
AzureIoTClient 12:658ca6865de2 421 result = __LINE__;
AzureIoTClient 12:658ca6865de2 422 }
AzureIoTClient 12:658ca6865de2 423 }
AzureIoTClient 12:658ca6865de2 424 return result;
AzureIoTClient 12:658ca6865de2 425 }
AzureIoTClient 12:658ca6865de2 426
AzureIoTClient 12:658ca6865de2 427 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 428 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 429 {
AzureIoTClient 12:658ca6865de2 430 bool result;
AzureIoTClient 12:658ca6865de2 431 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 432
AzureIoTClient 12:658ca6865de2 433 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 434 {
AzureIoTClient 12:658ca6865de2 435 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 436 result = true;
AzureIoTClient 12:658ca6865de2 437 }
AzureIoTClient 12:658ca6865de2 438 else if (now < 0 || retryLogic->start < 0 || retryLogic->stop < 0)
AzureIoTClient 12:658ca6865de2 439 {
AzureIoTClient 12:658ca6865de2 440 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 441 result = true;
AzureIoTClient 12:658ca6865de2 442 }
AzureIoTClient 12:658ca6865de2 443 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 444 {
AzureIoTClient 12:658ca6865de2 445 result = false;
AzureIoTClient 12:658ca6865de2 446 }
AzureIoTClient 12:658ca6865de2 447 else if (retryLogic->firstAttempt == false)
AzureIoTClient 12:658ca6865de2 448 {
AzureIoTClient 12:658ca6865de2 449 // try now
AzureIoTClient 12:658ca6865de2 450 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 451 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 452 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 453 result = true;
AzureIoTClient 12:658ca6865de2 454 }
AzureIoTClient 12:658ca6865de2 455 else
AzureIoTClient 12:658ca6865de2 456 {
AzureIoTClient 12:658ca6865de2 457 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 458 {
AzureIoTClient 12:658ca6865de2 459 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 12:658ca6865de2 460 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 461 {
AzureIoTClient 12:658ca6865de2 462 // Just right time to retry
AzureIoTClient 12:658ca6865de2 463 if(diffTime > WAIT_TIME_SECS)
AzureIoTClient 12:658ca6865de2 464 {
AzureIoTClient 12:658ca6865de2 465 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 466 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 467 result = true;
AzureIoTClient 12:658ca6865de2 468 }
AzureIoTClient 12:658ca6865de2 469 else
AzureIoTClient 12:658ca6865de2 470 {
AzureIoTClient 12:658ca6865de2 471 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 12:658ca6865de2 472 result = false;
AzureIoTClient 12:658ca6865de2 473 }
AzureIoTClient 12:658ca6865de2 474 }
AzureIoTClient 12:658ca6865de2 475 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 476 {
AzureIoTClient 12:658ca6865de2 477 // Too early to retry
AzureIoTClient 12:658ca6865de2 478 result = false;
AzureIoTClient 12:658ca6865de2 479 }
AzureIoTClient 12:658ca6865de2 480 else
AzureIoTClient 12:658ca6865de2 481 {
AzureIoTClient 12:658ca6865de2 482 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 12:658ca6865de2 483 bool permit = false;
AzureIoTClient 12:658ca6865de2 484 size_t delay;
AzureIoTClient 12:658ca6865de2 485
AzureIoTClient 12:658ca6865de2 486 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 487 {
AzureIoTClient 12:658ca6865de2 488 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 489 {
AzureIoTClient 12:658ca6865de2 490 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 491
AzureIoTClient 12:658ca6865de2 492 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 493
AzureIoTClient 12:658ca6865de2 494 if (retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 495 {
AzureIoTClient 12:658ca6865de2 496 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 497 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 498 result = true;
AzureIoTClient 12:658ca6865de2 499 }
AzureIoTClient 12:658ca6865de2 500 else
AzureIoTClient 12:658ca6865de2 501 {
AzureIoTClient 12:658ca6865de2 502 result = false;
AzureIoTClient 12:658ca6865de2 503 }
AzureIoTClient 12:658ca6865de2 504 }
AzureIoTClient 12:658ca6865de2 505 else
AzureIoTClient 12:658ca6865de2 506 {
AzureIoTClient 12:658ca6865de2 507 // Retry expired
AzureIoTClient 12:658ca6865de2 508 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 509 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 510 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 511 result = false;
AzureIoTClient 12:658ca6865de2 512 }
AzureIoTClient 12:658ca6865de2 513 }
AzureIoTClient 12:658ca6865de2 514 else
AzureIoTClient 12:658ca6865de2 515 {
AzureIoTClient 12:658ca6865de2 516 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 517 result = false;
AzureIoTClient 12:658ca6865de2 518 }
AzureIoTClient 12:658ca6865de2 519 }
AzureIoTClient 12:658ca6865de2 520 }
AzureIoTClient 12:658ca6865de2 521 else
AzureIoTClient 12:658ca6865de2 522 {
AzureIoTClient 12:658ca6865de2 523 // start retry when connection breaks
AzureIoTClient 12:658ca6865de2 524 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 525 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 526 result = false;
AzureIoTClient 12:658ca6865de2 527 }
AzureIoTClient 12:658ca6865de2 528 }
AzureIoTClient 12:658ca6865de2 529 return result;
AzureIoTClient 12:658ca6865de2 530 }
AzureIoTClient 12:658ca6865de2 531
AzureIoTClient 12:658ca6865de2 532
AzureIoTClient 11:31ebaeb51e1e 533 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 534 {
AzureIoTClient 11:31ebaeb51e1e 535 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 536 {
AzureIoTClient 11:31ebaeb51e1e 537 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 538 }
AzureIoTClient 11:31ebaeb51e1e 539 else
AzureIoTClient 11:31ebaeb51e1e 540 {
AzureIoTClient 11:31ebaeb51e1e 541 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 542 }
AzureIoTClient 11:31ebaeb51e1e 543 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 544 }
AzureIoTClient 11:31ebaeb51e1e 545
AzureIoTClient 11:31ebaeb51e1e 546 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 547 {
AzureIoTClient 11:31ebaeb51e1e 548 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 549 {
AzureIoTClient 11:31ebaeb51e1e 550 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 551 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 552 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 553 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 554 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 555 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 556 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 557 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 558 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 559 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 560 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 561 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 562 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 563 default:
AzureIoTClient 11:31ebaeb51e1e 564 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 565 }
AzureIoTClient 11:31ebaeb51e1e 566 }
AzureIoTClient 11:31ebaeb51e1e 567
AzureIoTClient 14:4dc2b011be33 568 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
AzureIoTClient 12:658ca6865de2 569 {
AzureIoTClient 12:658ca6865de2 570 int result;
AzureIoTClient 12:658ca6865de2 571 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 572 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 573 {
AzureIoTClient 12:658ca6865de2 574 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 575 result = __LINE__;
AzureIoTClient 12:658ca6865de2 576 }
AzureIoTClient 12:658ca6865de2 577 else
AzureIoTClient 12:658ca6865de2 578 {
AzureIoTClient 12:658ca6865de2 579 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 580 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 581 {
AzureIoTClient 12:658ca6865de2 582 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 583 result = __LINE__;
AzureIoTClient 12:658ca6865de2 584 }
AzureIoTClient 12:658ca6865de2 585 else
AzureIoTClient 12:658ca6865de2 586 {
AzureIoTClient 12:658ca6865de2 587 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 588 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 12:658ca6865de2 589 result = __LINE__;
AzureIoTClient 12:658ca6865de2 590 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 591 {
AzureIoTClient 12:658ca6865de2 592 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 593 {
AzureIoTClient 12:658ca6865de2 594 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 595 {
AzureIoTClient 14:4dc2b011be33 596 LogError("Failed STRING_concat_with_STRING.");
AzureIoTClient 12:658ca6865de2 597 result = __LINE__;
AzureIoTClient 12:658ca6865de2 598 break;
AzureIoTClient 12:658ca6865de2 599 }
AzureIoTClient 12:658ca6865de2 600 }
AzureIoTClient 12:658ca6865de2 601 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 602 {
AzureIoTClient 12:658ca6865de2 603 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 604 {
AzureIoTClient 12:658ca6865de2 605 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 606 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 607 {
AzureIoTClient 14:4dc2b011be33 608 if (STRING_concat(request_id, request_id_value+request_id_length) != 0)
AzureIoTClient 14:4dc2b011be33 609 {
AzureIoTClient 14:4dc2b011be33 610 LogError("Failed STRING_concat failed.");
AzureIoTClient 14:4dc2b011be33 611 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 612 }
AzureIoTClient 14:4dc2b011be33 613 else
AzureIoTClient 14:4dc2b011be33 614 {
AzureIoTClient 14:4dc2b011be33 615 result = 0;
AzureIoTClient 14:4dc2b011be33 616 }
AzureIoTClient 12:658ca6865de2 617 break;
AzureIoTClient 12:658ca6865de2 618 }
AzureIoTClient 12:658ca6865de2 619 }
AzureIoTClient 12:658ca6865de2 620 }
AzureIoTClient 12:658ca6865de2 621 token_index++;
AzureIoTClient 12:658ca6865de2 622 }
AzureIoTClient 12:658ca6865de2 623 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 624 }
AzureIoTClient 12:658ca6865de2 625 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 626 }
AzureIoTClient 12:658ca6865de2 627 return result;
AzureIoTClient 12:658ca6865de2 628 }
AzureIoTClient 12:658ca6865de2 629
AzureIoTClient 12:658ca6865de2 630 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 631 {
AzureIoTClient 12:658ca6865de2 632 int result;
AzureIoTClient 12:658ca6865de2 633 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 634 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 635 {
AzureIoTClient 12:658ca6865de2 636 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 637 result = __LINE__;
AzureIoTClient 12:658ca6865de2 638 *status_code = 0;
AzureIoTClient 12:658ca6865de2 639 *request_id = 0;
AzureIoTClient 12:658ca6865de2 640 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 641 }
AzureIoTClient 12:658ca6865de2 642 else
AzureIoTClient 12:658ca6865de2 643 {
AzureIoTClient 12:658ca6865de2 644 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 645 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 646 {
AzureIoTClient 12:658ca6865de2 647 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 648 result = __LINE__;
AzureIoTClient 12:658ca6865de2 649 *status_code = 0;
AzureIoTClient 12:658ca6865de2 650 *request_id = 0;
AzureIoTClient 12:658ca6865de2 651 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 652 }
AzureIoTClient 12:658ca6865de2 653 else
AzureIoTClient 12:658ca6865de2 654 {
AzureIoTClient 12:658ca6865de2 655 result = __LINE__;
AzureIoTClient 12:658ca6865de2 656 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 657 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 658 {
AzureIoTClient 12:658ca6865de2 659 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 660 {
AzureIoTClient 12:658ca6865de2 661 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 662 {
AzureIoTClient 12:658ca6865de2 663 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 664 *status_code = 0;
AzureIoTClient 12:658ca6865de2 665 *request_id = 0;
AzureIoTClient 12:658ca6865de2 666 result = 0;
AzureIoTClient 12:658ca6865de2 667 break;
AzureIoTClient 12:658ca6865de2 668 }
AzureIoTClient 12:658ca6865de2 669 else
AzureIoTClient 12:658ca6865de2 670 {
AzureIoTClient 12:658ca6865de2 671 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 672 }
AzureIoTClient 12:658ca6865de2 673 }
AzureIoTClient 12:658ca6865de2 674 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 675 {
AzureIoTClient 12:658ca6865de2 676 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 677 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 678 {
AzureIoTClient 12:658ca6865de2 679 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 680 }
AzureIoTClient 12:658ca6865de2 681 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 682 result = 0;
AzureIoTClient 12:658ca6865de2 683 break;
AzureIoTClient 12:658ca6865de2 684 }
AzureIoTClient 12:658ca6865de2 685 token_count++;
AzureIoTClient 12:658ca6865de2 686 }
AzureIoTClient 12:658ca6865de2 687 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 688 }
AzureIoTClient 12:658ca6865de2 689 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 690 }
AzureIoTClient 12:658ca6865de2 691 return result;
AzureIoTClient 12:658ca6865de2 692 }
AzureIoTClient 12:658ca6865de2 693
AzureIoTClient 12:658ca6865de2 694 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 695 {
AzureIoTClient 12:658ca6865de2 696 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 697 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 698 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 699 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 700 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 701
AzureIoTClient 12:658ca6865de2 702 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 703 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 704 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 705 {
AzureIoTClient 12:658ca6865de2 706 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 707 search_device_method = false;
AzureIoTClient 12:658ca6865de2 708 }
AzureIoTClient 12:658ca6865de2 709 else
AzureIoTClient 12:658ca6865de2 710 {
AzureIoTClient 12:658ca6865de2 711 for (size_t index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 712 {
AzureIoTClient 12:658ca6865de2 713 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 714 {
AzureIoTClient 12:658ca6865de2 715 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 716 {
AzureIoTClient 12:658ca6865de2 717 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 718 }
AzureIoTClient 12:658ca6865de2 719 else
AzureIoTClient 12:658ca6865de2 720 {
AzureIoTClient 12:658ca6865de2 721 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 722 {
AzureIoTClient 12:658ca6865de2 723 break;
AzureIoTClient 12:658ca6865de2 724 }
AzureIoTClient 14:4dc2b011be33 725 else if (TOUPPER(TOPIC_DEVICE_TWIN_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 726 {
AzureIoTClient 12:658ca6865de2 727 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 728 }
AzureIoTClient 12:658ca6865de2 729 }
AzureIoTClient 12:658ca6865de2 730 }
AzureIoTClient 12:658ca6865de2 731 if (search_device_method)
AzureIoTClient 12:658ca6865de2 732 {
AzureIoTClient 12:658ca6865de2 733 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 734 {
AzureIoTClient 12:658ca6865de2 735 search_device_method = false;
AzureIoTClient 12:658ca6865de2 736 }
AzureIoTClient 12:658ca6865de2 737 else
AzureIoTClient 12:658ca6865de2 738 {
AzureIoTClient 12:658ca6865de2 739 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 740 {
AzureIoTClient 12:658ca6865de2 741 break;
AzureIoTClient 12:658ca6865de2 742 }
AzureIoTClient 14:4dc2b011be33 743 else if (TOUPPER(TOPIC_DEVICE_METHOD_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 744 {
AzureIoTClient 12:658ca6865de2 745 search_device_method = false;
AzureIoTClient 12:658ca6865de2 746 }
AzureIoTClient 12:658ca6865de2 747 }
AzureIoTClient 12:658ca6865de2 748 }
AzureIoTClient 12:658ca6865de2 749 }
AzureIoTClient 12:658ca6865de2 750 }
AzureIoTClient 12:658ca6865de2 751 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 752 {
AzureIoTClient 12:658ca6865de2 753 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 754 }
AzureIoTClient 12:658ca6865de2 755 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 756 {
AzureIoTClient 12:658ca6865de2 757 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 758 }
AzureIoTClient 12:658ca6865de2 759 else
AzureIoTClient 12:658ca6865de2 760 {
AzureIoTClient 12:658ca6865de2 761 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 762 }
AzureIoTClient 12:658ca6865de2 763 return type;
AzureIoTClient 12:658ca6865de2 764 }
AzureIoTClient 12:658ca6865de2 765
AzureIoTClient 11:31ebaeb51e1e 766 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 767 {
AzureIoTClient 11:31ebaeb51e1e 768 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 769 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 770 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 771 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 772 }
AzureIoTClient 11:31ebaeb51e1e 773
AzureIoTClient 11:31ebaeb51e1e 774 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 775 {
AzureIoTClient 11:31ebaeb51e1e 776 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 777 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 778 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 779 size_t propertyCount;
AzureIoTClient 11:31ebaeb51e1e 780
AzureIoTClient 11:31ebaeb51e1e 781 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 782 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 783 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 784 {
AzureIoTClient 11:31ebaeb51e1e 785 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 786 {
AzureIoTClient 11:31ebaeb51e1e 787 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 788 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 789 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 790 }
AzureIoTClient 11:31ebaeb51e1e 791 else
AzureIoTClient 11:31ebaeb51e1e 792 {
AzureIoTClient 11:31ebaeb51e1e 793 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 794 {
AzureIoTClient 11:31ebaeb51e1e 795 for (size_t index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 796 {
AzureIoTClient 11:31ebaeb51e1e 797 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 798 {
AzureIoTClient 11:31ebaeb51e1e 799 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 800 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 801 }
AzureIoTClient 11:31ebaeb51e1e 802 }
AzureIoTClient 11:31ebaeb51e1e 803 }
AzureIoTClient 11:31ebaeb51e1e 804 }
AzureIoTClient 11:31ebaeb51e1e 805 }
AzureIoTClient 11:31ebaeb51e1e 806 return result;
AzureIoTClient 11:31ebaeb51e1e 807 }
AzureIoTClient 11:31ebaeb51e1e 808
AzureIoTClient 11:31ebaeb51e1e 809 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 810 {
AzureIoTClient 11:31ebaeb51e1e 811 int result;
AzureIoTClient 11:31ebaeb51e1e 812 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 813 if (msgTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 814 {
AzureIoTClient 11:31ebaeb51e1e 815 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 816 }
AzureIoTClient 11:31ebaeb51e1e 817 else
AzureIoTClient 11:31ebaeb51e1e 818 {
AzureIoTClient 11:31ebaeb51e1e 819 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 820 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 821 {
AzureIoTClient 11:31ebaeb51e1e 822 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 823 }
AzureIoTClient 11:31ebaeb51e1e 824 else
AzureIoTClient 11:31ebaeb51e1e 825 {
Azure.IoT.Build 13:606465879c57 826 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 827 {
AzureIoTClient 11:31ebaeb51e1e 828 LogError("Failed retrieving tickcounter info");
AzureIoTClient 11:31ebaeb51e1e 829 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 830 }
AzureIoTClient 11:31ebaeb51e1e 831 else
AzureIoTClient 11:31ebaeb51e1e 832 {
AzureIoTClient 11:31ebaeb51e1e 833 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 834 {
AzureIoTClient 11:31ebaeb51e1e 835 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 836 }
AzureIoTClient 11:31ebaeb51e1e 837 else
AzureIoTClient 11:31ebaeb51e1e 838 {
AzureIoTClient 11:31ebaeb51e1e 839 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 840 result = 0;
AzureIoTClient 11:31ebaeb51e1e 841 }
AzureIoTClient 11:31ebaeb51e1e 842 }
AzureIoTClient 11:31ebaeb51e1e 843 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 844 }
AzureIoTClient 11:31ebaeb51e1e 845 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 846 }
AzureIoTClient 11:31ebaeb51e1e 847 return result;
AzureIoTClient 11:31ebaeb51e1e 848 }
AzureIoTClient 11:31ebaeb51e1e 849
AzureIoTClient 14:4dc2b011be33 850 static int publish_device_method_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, int status_code, STRING_HANDLE request_id, const unsigned char* response, size_t response_size)
AzureIoTClient 12:658ca6865de2 851 {
AzureIoTClient 12:658ca6865de2 852 int result;
AzureIoTClient 12:658ca6865de2 853 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 854
AzureIoTClient 14:4dc2b011be33 855 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id) );
AzureIoTClient 12:658ca6865de2 856 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 857 {
AzureIoTClient 12:658ca6865de2 858 LogError("Failed constructing message topic.");
AzureIoTClient 12:658ca6865de2 859 result = __LINE__;
AzureIoTClient 12:658ca6865de2 860 }
AzureIoTClient 12:658ca6865de2 861 else
AzureIoTClient 12:658ca6865de2 862 {
AzureIoTClient 14:4dc2b011be33 863 MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, response, response_size);
AzureIoTClient 12:658ca6865de2 864 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 865 {
AzureIoTClient 12:658ca6865de2 866 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 867 result = __LINE__;
AzureIoTClient 12:658ca6865de2 868 }
AzureIoTClient 12:658ca6865de2 869 else
AzureIoTClient 12:658ca6865de2 870 {
AzureIoTClient 12:658ca6865de2 871 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 872 {
AzureIoTClient 12:658ca6865de2 873 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 874 result = __LINE__;
AzureIoTClient 12:658ca6865de2 875 }
AzureIoTClient 12:658ca6865de2 876 else
AzureIoTClient 12:658ca6865de2 877 {
AzureIoTClient 12:658ca6865de2 878 result = 0;
AzureIoTClient 12:658ca6865de2 879 }
AzureIoTClient 12:658ca6865de2 880 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 881 }
AzureIoTClient 12:658ca6865de2 882 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 883 }
AzureIoTClient 12:658ca6865de2 884 return result;
AzureIoTClient 12:658ca6865de2 885 }
AzureIoTClient 12:658ca6865de2 886
AzureIoTClient 12:658ca6865de2 887 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 888 {
AzureIoTClient 12:658ca6865de2 889 int result;
AzureIoTClient 12:658ca6865de2 890 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 891 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 892 {
AzureIoTClient 12:658ca6865de2 893 LogError("Failed allocating device twin data.");
AzureIoTClient 12:658ca6865de2 894 result = __LINE__;
AzureIoTClient 12:658ca6865de2 895 }
AzureIoTClient 12:658ca6865de2 896 else
AzureIoTClient 12:658ca6865de2 897 {
AzureIoTClient 12:658ca6865de2 898 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 899 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 900 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 901 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 902 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 903 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 904 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 905 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 906 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 907 {
AzureIoTClient 12:658ca6865de2 908 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 909 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 910 result = __LINE__;
AzureIoTClient 12:658ca6865de2 911 }
AzureIoTClient 12:658ca6865de2 912 else
AzureIoTClient 12:658ca6865de2 913 {
AzureIoTClient 12:658ca6865de2 914 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 915 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 916 {
AzureIoTClient 12:658ca6865de2 917 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 918 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 919 result = __LINE__;
AzureIoTClient 12:658ca6865de2 920 }
AzureIoTClient 12:658ca6865de2 921 else
AzureIoTClient 12:658ca6865de2 922 {
AzureIoTClient 12:658ca6865de2 923 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 924 {
AzureIoTClient 12:658ca6865de2 925 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 926 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 927 result = __LINE__;
AzureIoTClient 12:658ca6865de2 928 }
AzureIoTClient 12:658ca6865de2 929 else
AzureIoTClient 12:658ca6865de2 930 {
AzureIoTClient 12:658ca6865de2 931 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 932 result = 0;
AzureIoTClient 12:658ca6865de2 933 }
AzureIoTClient 12:658ca6865de2 934 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 935 }
AzureIoTClient 12:658ca6865de2 936 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 937 }
AzureIoTClient 12:658ca6865de2 938 }
AzureIoTClient 12:658ca6865de2 939 return result;
AzureIoTClient 12:658ca6865de2 940 }
AzureIoTClient 12:658ca6865de2 941
AzureIoTClient 12:658ca6865de2 942 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 943 {
AzureIoTClient 12:658ca6865de2 944 int result;
AzureIoTClient 12:658ca6865de2 945 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 946 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 947 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 948 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 949 {
AzureIoTClient 12:658ca6865de2 950 LogError("Failed constructing reported prop topic.");
AzureIoTClient 12:658ca6865de2 951 result = __LINE__;
AzureIoTClient 12:658ca6865de2 952 }
AzureIoTClient 12:658ca6865de2 953 else
AzureIoTClient 12:658ca6865de2 954 {
AzureIoTClient 12:658ca6865de2 955 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 956 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 957 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 958 {
AzureIoTClient 12:658ca6865de2 959 LogError("Failed creating mqtt message");
AzureIoTClient 12:658ca6865de2 960 result = __LINE__;
AzureIoTClient 12:658ca6865de2 961 }
AzureIoTClient 12:658ca6865de2 962 else
AzureIoTClient 12:658ca6865de2 963 {
Azure.IoT.Build 13:606465879c57 964 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 965 {
AzureIoTClient 12:658ca6865de2 966 LogError("Failed retrieving tickcounter info");
AzureIoTClient 12:658ca6865de2 967 result = __LINE__;
AzureIoTClient 12:658ca6865de2 968 }
AzureIoTClient 12:658ca6865de2 969 else
AzureIoTClient 12:658ca6865de2 970 {
AzureIoTClient 12:658ca6865de2 971 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 972 {
AzureIoTClient 12:658ca6865de2 973 LogError("Failed publishing mqtt message");
AzureIoTClient 12:658ca6865de2 974 result = __LINE__;
AzureIoTClient 12:658ca6865de2 975 }
AzureIoTClient 12:658ca6865de2 976 else
AzureIoTClient 12:658ca6865de2 977 {
AzureIoTClient 12:658ca6865de2 978 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 979 result = 0;
AzureIoTClient 12:658ca6865de2 980 }
AzureIoTClient 12:658ca6865de2 981 }
AzureIoTClient 12:658ca6865de2 982 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 983 }
AzureIoTClient 12:658ca6865de2 984 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 985 }
AzureIoTClient 12:658ca6865de2 986 return result;
AzureIoTClient 12:658ca6865de2 987 }
AzureIoTClient 12:658ca6865de2 988
AzureIoTClient 11:31ebaeb51e1e 989 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 990 {
AzureIoTClient 11:31ebaeb51e1e 991 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 992 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 11:31ebaeb51e1e 993 for (size_t index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 994 {
AzureIoTClient 11:31ebaeb51e1e 995 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 996 {
AzureIoTClient 11:31ebaeb51e1e 997 result = true;
AzureIoTClient 11:31ebaeb51e1e 998 break;
AzureIoTClient 11:31ebaeb51e1e 999 }
AzureIoTClient 11:31ebaeb51e1e 1000 }
AzureIoTClient 11:31ebaeb51e1e 1001 return result;
AzureIoTClient 11:31ebaeb51e1e 1002 }
AzureIoTClient 11:31ebaeb51e1e 1003
AzureIoTClient 11:31ebaeb51e1e 1004 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 1005 {
AzureIoTClient 11:31ebaeb51e1e 1006 int result;
AzureIoTClient 11:31ebaeb51e1e 1007 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 1008 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 1009 {
AzureIoTClient 11:31ebaeb51e1e 1010 LogError("Failure constructing string topic name.");
AzureIoTClient 11:31ebaeb51e1e 1011 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1012 }
AzureIoTClient 11:31ebaeb51e1e 1013 else
AzureIoTClient 11:31ebaeb51e1e 1014 {
AzureIoTClient 11:31ebaeb51e1e 1015 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1016 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1017 {
AzureIoTClient 11:31ebaeb51e1e 1018 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1019 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1020 {
AzureIoTClient 11:31ebaeb51e1e 1021 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 11:31ebaeb51e1e 1022 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1023 }
AzureIoTClient 11:31ebaeb51e1e 1024 else
AzureIoTClient 11:31ebaeb51e1e 1025 {
AzureIoTClient 11:31ebaeb51e1e 1026 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1027 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1028 {
AzureIoTClient 11:31ebaeb51e1e 1029 LogError("Failure to allocate STRING_new.");
AzureIoTClient 11:31ebaeb51e1e 1030 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1031 }
AzureIoTClient 11:31ebaeb51e1e 1032 else
AzureIoTClient 11:31ebaeb51e1e 1033 {
AzureIoTClient 11:31ebaeb51e1e 1034 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1035 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1036 {
AzureIoTClient 11:31ebaeb51e1e 1037 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1038 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1039 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1040 {
AzureIoTClient 11:31ebaeb51e1e 1041 break;
AzureIoTClient 11:31ebaeb51e1e 1042 }
AzureIoTClient 11:31ebaeb51e1e 1043 else
AzureIoTClient 11:31ebaeb51e1e 1044 {
AzureIoTClient 11:31ebaeb51e1e 1045 if (!isSystemProperty(tokenData) )
AzureIoTClient 11:31ebaeb51e1e 1046 {
AzureIoTClient 11:31ebaeb51e1e 1047 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1048 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1049 {
AzureIoTClient 11:31ebaeb51e1e 1050 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1051 {
AzureIoTClient 11:31ebaeb51e1e 1052 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1053 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1054
AzureIoTClient 11:31ebaeb51e1e 1055 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1056 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1057
AzureIoTClient 11:31ebaeb51e1e 1058 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1059 {
AzureIoTClient 11:31ebaeb51e1e 1060 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1061 }
AzureIoTClient 11:31ebaeb51e1e 1062 else
AzureIoTClient 11:31ebaeb51e1e 1063 {
AzureIoTClient 11:31ebaeb51e1e 1064 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1065 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1066
AzureIoTClient 11:31ebaeb51e1e 1067 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1068 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1069
AzureIoTClient 11:31ebaeb51e1e 1070 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1071 {
AzureIoTClient 11:31ebaeb51e1e 1072 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 11:31ebaeb51e1e 1073 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1074 }
AzureIoTClient 11:31ebaeb51e1e 1075 }
AzureIoTClient 11:31ebaeb51e1e 1076 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1077 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1078
AzureIoTClient 11:31ebaeb51e1e 1079 break;
AzureIoTClient 11:31ebaeb51e1e 1080 }
AzureIoTClient 11:31ebaeb51e1e 1081 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1082 }
AzureIoTClient 11:31ebaeb51e1e 1083 }
AzureIoTClient 11:31ebaeb51e1e 1084 }
AzureIoTClient 11:31ebaeb51e1e 1085 }
AzureIoTClient 11:31ebaeb51e1e 1086 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1087 }
AzureIoTClient 11:31ebaeb51e1e 1088 }
AzureIoTClient 11:31ebaeb51e1e 1089 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1090 }
AzureIoTClient 11:31ebaeb51e1e 1091 else
AzureIoTClient 11:31ebaeb51e1e 1092 {
AzureIoTClient 11:31ebaeb51e1e 1093 LogError("Unable to create Tokenizer object.");
AzureIoTClient 11:31ebaeb51e1e 1094 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1095 }
AzureIoTClient 11:31ebaeb51e1e 1096 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1097 }
AzureIoTClient 11:31ebaeb51e1e 1098 return result;
AzureIoTClient 11:31ebaeb51e1e 1099 }
AzureIoTClient 11:31ebaeb51e1e 1100
AzureIoTClient 11:31ebaeb51e1e 1101 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1102 {
AzureIoTClient 14:4dc2b011be33 1103 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
AzureIoTClient 11:31ebaeb51e1e 1104 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1105 {
AzureIoTClient 14:4dc2b011be33 1106 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
AzureIoTClient 11:31ebaeb51e1e 1107 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1108 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1109 {
AzureIoTClient 11:31ebaeb51e1e 1110 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1111 }
AzureIoTClient 11:31ebaeb51e1e 1112 else
AzureIoTClient 11:31ebaeb51e1e 1113 {
AzureIoTClient 11:31ebaeb51e1e 1114 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1115
AzureIoTClient 12:658ca6865de2 1116 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1117 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1118 {
AzureIoTClient 12:658ca6865de2 1119 size_t request_id;
AzureIoTClient 12:658ca6865de2 1120 int status_code;
AzureIoTClient 12:658ca6865de2 1121 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1122 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1123 {
AzureIoTClient 12:658ca6865de2 1124 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1125 }
AzureIoTClient 12:658ca6865de2 1126 else
AzureIoTClient 12:658ca6865de2 1127 {
AzureIoTClient 12:658ca6865de2 1128 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1129 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1130 {
AzureIoTClient 12:658ca6865de2 1131 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1132 }
AzureIoTClient 12:658ca6865de2 1133 else
AzureIoTClient 12:658ca6865de2 1134 {
AzureIoTClient 12:658ca6865de2 1135 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1136 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1137 {
AzureIoTClient 12:658ca6865de2 1138 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1139 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1140 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1141 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1142 {
AzureIoTClient 12:658ca6865de2 1143 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1144 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1145 {
AzureIoTClient 14:4dc2b011be33 1146 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_054: [ If type is IOTHUB_TYPE_DEVICE_TWIN, then on success if msg_type is RETRIEVE_PROPERTIES then mqtt_notification_callback shall call IoTHubClient_LL_RetrievePropertyComplete... ] */
AzureIoTClient 12:658ca6865de2 1147 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1148 }
AzureIoTClient 12:658ca6865de2 1149 else
AzureIoTClient 12:658ca6865de2 1150 {
AzureIoTClient 14:4dc2b011be33 1151 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_055: [ if device_twin_msg_type is not RETRIEVE_PROPERTIES then mqtt_notification_callback shall call IoTHubClient_LL_ReportedStateComplete ] */
AzureIoTClient 12:658ca6865de2 1152 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1153 }
AzureIoTClient 12:658ca6865de2 1154 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1155 break;
AzureIoTClient 12:658ca6865de2 1156 }
AzureIoTClient 12:658ca6865de2 1157 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1158 }
AzureIoTClient 12:658ca6865de2 1159 }
AzureIoTClient 12:658ca6865de2 1160 }
AzureIoTClient 12:658ca6865de2 1161 }
AzureIoTClient 12:658ca6865de2 1162 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1163 {
AzureIoTClient 12:658ca6865de2 1164 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1165 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1166 {
AzureIoTClient 12:658ca6865de2 1167 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1168 }
AzureIoTClient 12:658ca6865de2 1169 else
AzureIoTClient 12:658ca6865de2 1170 {
AzureIoTClient 14:4dc2b011be33 1171 DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO) );
AzureIoTClient 14:4dc2b011be33 1172 if (dev_method_info == NULL)
AzureIoTClient 12:658ca6865de2 1173 {
AzureIoTClient 14:4dc2b011be33 1174 LogError("Failure: allocating DEVICE_METHOD_INFO object");
AzureIoTClient 12:658ca6865de2 1175 }
AzureIoTClient 12:658ca6865de2 1176 else
AzureIoTClient 12:658ca6865de2 1177 {
AzureIoTClient 14:4dc2b011be33 1178 dev_method_info->request_id = STRING_new();
AzureIoTClient 14:4dc2b011be33 1179 if (dev_method_info->request_id == NULL)
AzureIoTClient 14:4dc2b011be33 1180 {
AzureIoTClient 14:4dc2b011be33 1181 LogError("Failure constructing request_id string");
AzureIoTClient 14:4dc2b011be33 1182 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1183 }
AzureIoTClient 14:4dc2b011be33 1184 else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
AzureIoTClient 12:658ca6865de2 1185 {
AzureIoTClient 14:4dc2b011be33 1186 LogError("Failure: retrieve device topic info");
AzureIoTClient 14:4dc2b011be33 1187 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1188 free(dev_method_info);
AzureIoTClient 12:658ca6865de2 1189 }
AzureIoTClient 14:4dc2b011be33 1190 else
AzureIoTClient 14:4dc2b011be33 1191 {
AzureIoTClient 14:4dc2b011be33 1192 /* CodesSRS_IOTHUB_MQTT_TRANSPORT_07_053: [ If type is IOTHUB_TYPE_DEVICE_METHODS, then on success mqtt_notification_callback shall call IoTHubClient_LL_DeviceMethodComplete. ] */
AzureIoTClient 14:4dc2b011be33 1193 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 14:4dc2b011be33 1194 if (IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info) != 0)
AzureIoTClient 14:4dc2b011be33 1195 {
AzureIoTClient 14:4dc2b011be33 1196 LogError("Failure: IoTHubClient_LL_DeviceMethodComplete");
AzureIoTClient 14:4dc2b011be33 1197 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1198 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1199 }
AzureIoTClient 14:4dc2b011be33 1200 }
AzureIoTClient 12:658ca6865de2 1201 }
AzureIoTClient 12:658ca6865de2 1202 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1203 }
AzureIoTClient 11:31ebaeb51e1e 1204 }
AzureIoTClient 11:31ebaeb51e1e 1205 else
AzureIoTClient 11:31ebaeb51e1e 1206 {
AzureIoTClient 12:658ca6865de2 1207 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1208 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1209 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1210 {
AzureIoTClient 12:658ca6865de2 1211 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1212 }
AzureIoTClient 11:31ebaeb51e1e 1213 else
AzureIoTClient 11:31ebaeb51e1e 1214 {
AzureIoTClient 12:658ca6865de2 1215 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1216 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1217 {
AzureIoTClient 12:658ca6865de2 1218 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1219 }
AzureIoTClient 12:658ca6865de2 1220 else
AzureIoTClient 11:31ebaeb51e1e 1221 {
AzureIoTClient 14:4dc2b011be33 1222 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_056: [ If type is IOTHUB_TYPE_TELEMETRY, then on success mqtt_notification_callback shall call IoTHubClient_LL_MessageCallback. ] */
AzureIoTClient 12:658ca6865de2 1223 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
AzureIoTClient 12:658ca6865de2 1224 {
AzureIoTClient 12:658ca6865de2 1225 LogError("Event not accepted by our client.");
AzureIoTClient 12:658ca6865de2 1226 }
AzureIoTClient 11:31ebaeb51e1e 1227 }
AzureIoTClient 12:658ca6865de2 1228 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1229 }
AzureIoTClient 11:31ebaeb51e1e 1230 }
AzureIoTClient 11:31ebaeb51e1e 1231 }
AzureIoTClient 11:31ebaeb51e1e 1232 }
AzureIoTClient 11:31ebaeb51e1e 1233 }
AzureIoTClient 11:31ebaeb51e1e 1234
AzureIoTClient 11:31ebaeb51e1e 1235 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1236 {
AzureIoTClient 11:31ebaeb51e1e 1237 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1238 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1239 {
AzureIoTClient 11:31ebaeb51e1e 1240 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1241
AzureIoTClient 11:31ebaeb51e1e 1242 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1243 {
AzureIoTClient 11:31ebaeb51e1e 1244 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1245 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1246 {
AzureIoTClient 11:31ebaeb51e1e 1247 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1248 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1249 {
AzureIoTClient 11:31ebaeb51e1e 1250 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1251 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1252 {
AzureIoTClient 11:31ebaeb51e1e 1253 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1254 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1255 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1256
AzureIoTClient 11:31ebaeb51e1e 1257 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1258 {
AzureIoTClient 11:31ebaeb51e1e 1259 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1260 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1261 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1262 }
AzureIoTClient 11:31ebaeb51e1e 1263 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1264 }
AzureIoTClient 11:31ebaeb51e1e 1265 }
AzureIoTClient 11:31ebaeb51e1e 1266 else
AzureIoTClient 11:31ebaeb51e1e 1267 {
AzureIoTClient 11:31ebaeb51e1e 1268 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1269 }
AzureIoTClient 11:31ebaeb51e1e 1270 break;
AzureIoTClient 11:31ebaeb51e1e 1271 }
AzureIoTClient 11:31ebaeb51e1e 1272 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1273 {
AzureIoTClient 11:31ebaeb51e1e 1274 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1275 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1276 {
AzureIoTClient 11:31ebaeb51e1e 1277 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1278 {
AzureIoTClient 11:31ebaeb51e1e 1279 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1280 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1281 transport_data->isRecoverableError = true;
AzureIoTClient 12:658ca6865de2 1282 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 1283 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1284 }
AzureIoTClient 11:31ebaeb51e1e 1285 else
AzureIoTClient 11:31ebaeb51e1e 1286 {
AzureIoTClient 12:658ca6865de2 1287 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1288 {
AzureIoTClient 12:658ca6865de2 1289 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1290 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1291 }
AzureIoTClient 12:658ca6865de2 1292 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1293 {
AzureIoTClient 12:658ca6865de2 1294 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1295 }
AzureIoTClient 12:658ca6865de2 1296 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1297 {
AzureIoTClient 12:658ca6865de2 1298 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1299 }
AzureIoTClient 11:31ebaeb51e1e 1300 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1301 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1302 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1303 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1304 }
AzureIoTClient 11:31ebaeb51e1e 1305 }
AzureIoTClient 11:31ebaeb51e1e 1306 else
AzureIoTClient 11:31ebaeb51e1e 1307 {
AzureIoTClient 11:31ebaeb51e1e 1308 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1309 }
AzureIoTClient 11:31ebaeb51e1e 1310 break;
AzureIoTClient 11:31ebaeb51e1e 1311 }
AzureIoTClient 11:31ebaeb51e1e 1312 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1313 {
AzureIoTClient 11:31ebaeb51e1e 1314 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1315 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1316 {
AzureIoTClient 11:31ebaeb51e1e 1317 for (size_t index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1318 {
AzureIoTClient 11:31ebaeb51e1e 1319 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1320 {
AzureIoTClient 11:31ebaeb51e1e 1321 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1322 }
AzureIoTClient 11:31ebaeb51e1e 1323 }
AzureIoTClient 11:31ebaeb51e1e 1324 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1325 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1326 }
AzureIoTClient 11:31ebaeb51e1e 1327 else
AzureIoTClient 11:31ebaeb51e1e 1328 {
AzureIoTClient 11:31ebaeb51e1e 1329 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1330 }
AzureIoTClient 11:31ebaeb51e1e 1331 break;
AzureIoTClient 11:31ebaeb51e1e 1332 }
AzureIoTClient 11:31ebaeb51e1e 1333 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1334 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1335 {
AzureIoTClient 11:31ebaeb51e1e 1336 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1337 break;
AzureIoTClient 11:31ebaeb51e1e 1338 }
AzureIoTClient 11:31ebaeb51e1e 1339 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1340 {
AzureIoTClient 11:31ebaeb51e1e 1341 // Close the client so we can reconnect again
AzureIoTClient 11:31ebaeb51e1e 1342 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1343 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1344 break;
AzureIoTClient 11:31ebaeb51e1e 1345 }
AzureIoTClient 12:658ca6865de2 1346 }
AzureIoTClient 12:658ca6865de2 1347 }
AzureIoTClient 12:658ca6865de2 1348 }
AzureIoTClient 12:658ca6865de2 1349
AzureIoTClient 12:658ca6865de2 1350 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1351 {
AzureIoTClient 12:658ca6865de2 1352 (void)handle;
AzureIoTClient 12:658ca6865de2 1353 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1354 {
AzureIoTClient 12:658ca6865de2 1355 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1356 switch (error)
AzureIoTClient 12:658ca6865de2 1357 {
AzureIoTClient 12:658ca6865de2 1358 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1359 {
AzureIoTClient 12:658ca6865de2 1360 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1361 break;
AzureIoTClient 12:658ca6865de2 1362 }
AzureIoTClient 12:658ca6865de2 1363 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1364 {
AzureIoTClient 12:658ca6865de2 1365 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1366 break;
AzureIoTClient 11:31ebaeb51e1e 1367 }
AzureIoTClient 11:31ebaeb51e1e 1368 }
AzureIoTClient 12:658ca6865de2 1369 transport_data->isConnected = false;
AzureIoTClient 12:658ca6865de2 1370 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1371 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1372 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1373 {
Azure.IoT.Build 13:606465879c57 1374 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1375 }
Azure.IoT.Build 13:606465879c57 1376 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1377 {
Azure.IoT.Build 13:606465879c57 1378 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1379 }
Azure.IoT.Build 13:606465879c57 1380 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1381 {
Azure.IoT.Build 13:606465879c57 1382 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1383 }
Azure.IoT.Build 13:606465879c57 1384 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1385 {
Azure.IoT.Build 13:606465879c57 1386 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1387 }
Azure.IoT.Build 13:606465879c57 1388 }
AzureIoTClient 12:658ca6865de2 1389 else
AzureIoTClient 12:658ca6865de2 1390 {
AzureIoTClient 12:658ca6865de2 1391 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1392 }
AzureIoTClient 11:31ebaeb51e1e 1393 }
AzureIoTClient 11:31ebaeb51e1e 1394
AzureIoTClient 11:31ebaeb51e1e 1395 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1396 {
AzureIoTClient 11:31ebaeb51e1e 1397 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1398 {
AzureIoTClient 11:31ebaeb51e1e 1399 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1400 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1401 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1402 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1403 {
AzureIoTClient 11:31ebaeb51e1e 1404 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1405 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1406 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1407 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1408 }
AzureIoTClient 12:658ca6865de2 1409 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1410 {
AzureIoTClient 12:658ca6865de2 1411 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1412 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1413 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1414 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1415 }
AzureIoTClient 12:658ca6865de2 1416 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1417 {
AzureIoTClient 12:658ca6865de2 1418 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1419 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1420 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1421 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1422 }
AzureIoTClient 12:658ca6865de2 1423 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1424 {
AzureIoTClient 12:658ca6865de2 1425 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1426 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1427 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1428 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1429 }
AzureIoTClient 11:31ebaeb51e1e 1430
AzureIoTClient 11:31ebaeb51e1e 1431 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1432 {
AzureIoTClient 12:658ca6865de2 1433 /* 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 1434 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1435 {
AzureIoTClient 12:658ca6865de2 1436 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1437 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1438 }
AzureIoTClient 11:31ebaeb51e1e 1439 else
AzureIoTClient 11:31ebaeb51e1e 1440 {
AzureIoTClient 12:658ca6865de2 1441 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1442 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1443 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1444 }
AzureIoTClient 11:31ebaeb51e1e 1445 }
AzureIoTClient 11:31ebaeb51e1e 1446 else
AzureIoTClient 11:31ebaeb51e1e 1447 {
AzureIoTClient 12:658ca6865de2 1448 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1449 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1450 }
AzureIoTClient 11:31ebaeb51e1e 1451 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1452 }
AzureIoTClient 11:31ebaeb51e1e 1453 else
AzureIoTClient 11:31ebaeb51e1e 1454 {
AzureIoTClient 11:31ebaeb51e1e 1455 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1456 }
AzureIoTClient 11:31ebaeb51e1e 1457 }
AzureIoTClient 11:31ebaeb51e1e 1458
AzureIoTClient 11:31ebaeb51e1e 1459 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1460 {
AzureIoTClient 11:31ebaeb51e1e 1461 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1462
AzureIoTClient 11:31ebaeb51e1e 1463 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1464 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1465 {
AzureIoTClient 11:31ebaeb51e1e 1466 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1467 {
AzureIoTClient 11:31ebaeb51e1e 1468 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1469 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1470 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1471 }
AzureIoTClient 11:31ebaeb51e1e 1472 }
AzureIoTClient 11:31ebaeb51e1e 1473 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1474 {
AzureIoTClient 11:31ebaeb51e1e 1475 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1476 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1477 {
AzureIoTClient 11:31ebaeb51e1e 1478 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1479 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1480 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1481 }
AzureIoTClient 11:31ebaeb51e1e 1482 else
AzureIoTClient 11:31ebaeb51e1e 1483 {
AzureIoTClient 11:31ebaeb51e1e 1484 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1485 }
AzureIoTClient 11:31ebaeb51e1e 1486 }
AzureIoTClient 11:31ebaeb51e1e 1487 else
AzureIoTClient 11:31ebaeb51e1e 1488 {
AzureIoTClient 11:31ebaeb51e1e 1489 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1490 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1491 }
AzureIoTClient 11:31ebaeb51e1e 1492 return result;
AzureIoTClient 11:31ebaeb51e1e 1493 }
AzureIoTClient 11:31ebaeb51e1e 1494
AzureIoTClient 11:31ebaeb51e1e 1495 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1496 {
AzureIoTClient 11:31ebaeb51e1e 1497 int result;
AzureIoTClient 11:31ebaeb51e1e 1498
AzureIoTClient 11:31ebaeb51e1e 1499 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1500 {
AzureIoTClient 11:31ebaeb51e1e 1501 // construct address
AzureIoTClient 11:31ebaeb51e1e 1502 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1503 transport_data->xioTransport = transport_data->get_io_transport(hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1504 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1505 {
AzureIoTClient 11:31ebaeb51e1e 1506 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 11:31ebaeb51e1e 1507 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1508 }
AzureIoTClient 11:31ebaeb51e1e 1509 else
AzureIoTClient 11:31ebaeb51e1e 1510 {
AzureIoTClient 11:31ebaeb51e1e 1511 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1512 }
AzureIoTClient 11:31ebaeb51e1e 1513 }
AzureIoTClient 11:31ebaeb51e1e 1514 else
AzureIoTClient 11:31ebaeb51e1e 1515 {
AzureIoTClient 11:31ebaeb51e1e 1516 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1517 }
AzureIoTClient 11:31ebaeb51e1e 1518 return result;
AzureIoTClient 11:31ebaeb51e1e 1519 }
AzureIoTClient 11:31ebaeb51e1e 1520
AzureIoTClient 11:31ebaeb51e1e 1521 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1522 {
AzureIoTClient 11:31ebaeb51e1e 1523 int result;
AzureIoTClient 11:31ebaeb51e1e 1524
AzureIoTClient 11:31ebaeb51e1e 1525 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 11:31ebaeb51e1e 1526 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1527 if (emptyKeyName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1528 {
AzureIoTClient 11:31ebaeb51e1e 1529 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1530 }
AzureIoTClient 11:31ebaeb51e1e 1531 else
AzureIoTClient 11:31ebaeb51e1e 1532 {
AzureIoTClient 11:31ebaeb51e1e 1533 STRING_HANDLE sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1534 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1535
AzureIoTClient 11:31ebaeb51e1e 1536 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1537 {
AzureIoTClient 12:658ca6865de2 1538 case SAS_TOKEN_FROM_USER:
AzureIoTClient 12:658ca6865de2 1539 sasToken = STRING_clone(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 12:658ca6865de2 1540 if (!SASToken_Validate(sasToken))
AzureIoTClient 11:31ebaeb51e1e 1541 {
AzureIoTClient 12:658ca6865de2 1542 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 12:658ca6865de2 1543 STRING_delete(sasToken);
AzureIoTClient 12:658ca6865de2 1544 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1545 }
AzureIoTClient 12:658ca6865de2 1546 break;
AzureIoTClient 12:658ca6865de2 1547 case DEVICE_KEY:
AzureIoTClient 12:658ca6865de2 1548 {
AzureIoTClient 12:658ca6865de2 1549 // Construct SAS token
AzureIoTClient 12:658ca6865de2 1550 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 12:658ca6865de2 1551 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 11:31ebaeb51e1e 1552
AzureIoTClient 12:658ca6865de2 1553 sasToken = SASToken_Create(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey, transport_data->devicesPath, emptyKeyName, expiryTime);
AzureIoTClient 12:658ca6865de2 1554 break;
AzureIoTClient 12:658ca6865de2 1555 }
AzureIoTClient 12:658ca6865de2 1556 case X509:
AzureIoTClient 12:658ca6865de2 1557 default:
AzureIoTClient 12:658ca6865de2 1558 // The assumption here is that x509 is in place, if not setup
AzureIoTClient 12:658ca6865de2 1559 // correctly the connection will be rejected.
AzureIoTClient 12:658ca6865de2 1560 sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1561 break;
AzureIoTClient 11:31ebaeb51e1e 1562 }
AzureIoTClient 11:31ebaeb51e1e 1563
AzureIoTClient 12:658ca6865de2 1564 if (result == 0)
AzureIoTClient 11:31ebaeb51e1e 1565 {
AzureIoTClient 12:658ca6865de2 1566 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 12:658ca6865de2 1567 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 12:658ca6865de2 1568 options.willMessage = NULL;
AzureIoTClient 12:658ca6865de2 1569 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 1570 if (sasToken != NULL)
AzureIoTClient 12:658ca6865de2 1571 {
AzureIoTClient 12:658ca6865de2 1572 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 12:658ca6865de2 1573 }
AzureIoTClient 12:658ca6865de2 1574 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 12:658ca6865de2 1575 options.useCleanSession = false;
AzureIoTClient 12:658ca6865de2 1576 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1577
AzureIoTClient 12:658ca6865de2 1578 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 1579 {
AzureIoTClient 12:658ca6865de2 1580 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 12:658ca6865de2 1581 {
AzureIoTClient 12:658ca6865de2 1582 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 12:658ca6865de2 1583 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1584 }
AzureIoTClient 12:658ca6865de2 1585 else
AzureIoTClient 12:658ca6865de2 1586 {
Azure.IoT.Build 13:606465879c57 1587 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 12:658ca6865de2 1588 result = 0;
AzureIoTClient 12:658ca6865de2 1589 }
AzureIoTClient 11:31ebaeb51e1e 1590 }
AzureIoTClient 11:31ebaeb51e1e 1591 else
AzureIoTClient 11:31ebaeb51e1e 1592 {
AzureIoTClient 12:658ca6865de2 1593 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1594 }
AzureIoTClient 12:658ca6865de2 1595
AzureIoTClient 12:658ca6865de2 1596 STRING_delete(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1597 }
AzureIoTClient 11:31ebaeb51e1e 1598 STRING_delete(emptyKeyName);
AzureIoTClient 11:31ebaeb51e1e 1599 }
AzureIoTClient 11:31ebaeb51e1e 1600 return result;
AzureIoTClient 11:31ebaeb51e1e 1601 }
AzureIoTClient 11:31ebaeb51e1e 1602
AzureIoTClient 11:31ebaeb51e1e 1603 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1604 {
AzureIoTClient 11:31ebaeb51e1e 1605 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1606
AzureIoTClient 11:31ebaeb51e1e 1607 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1608 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1609 {
AzureIoTClient 11:31ebaeb51e1e 1610 // If we are not isConnected then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1611 // to back off the connecting to the server
AzureIoTClient 12:658ca6865de2 1612 if (!transport_data->isConnected && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1613 {
Azure.IoT.Build 13:606465879c57 1614 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1615 {
AzureIoTClient 12:658ca6865de2 1616 transport_data->connectFailCount++;
AzureIoTClient 12:658ca6865de2 1617 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1618 }
AzureIoTClient 12:658ca6865de2 1619 else
AzureIoTClient 11:31ebaeb51e1e 1620 {
AzureIoTClient 12:658ca6865de2 1621 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1622 {
AzureIoTClient 11:31ebaeb51e1e 1623 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1624 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1625 }
AzureIoTClient 11:31ebaeb51e1e 1626 else
AzureIoTClient 11:31ebaeb51e1e 1627 {
AzureIoTClient 12:658ca6865de2 1628 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1629 transport_data->isConnected = true;
AzureIoTClient 12:658ca6865de2 1630 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1631 }
AzureIoTClient 11:31ebaeb51e1e 1632 }
AzureIoTClient 11:31ebaeb51e1e 1633 }
AzureIoTClient 11:31ebaeb51e1e 1634
AzureIoTClient 11:31ebaeb51e1e 1635 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 1636 {
AzureIoTClient 11:31ebaeb51e1e 1637 // We are isConnected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1638 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1639 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1640 {
AzureIoTClient 11:31ebaeb51e1e 1641 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1642 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1643 }
AzureIoTClient 11:31ebaeb51e1e 1644 else
AzureIoTClient 11:31ebaeb51e1e 1645 {
AzureIoTClient 11:31ebaeb51e1e 1646 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1647 {
AzureIoTClient 11:31ebaeb51e1e 1648 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 12:658ca6865de2 1649 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 11:31ebaeb51e1e 1650 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1651 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1652 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1653 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1654 {
AzureIoTClient 11:31ebaeb51e1e 1655 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1656 }
AzureIoTClient 12:658ca6865de2 1657 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1658 {
AzureIoTClient 12:658ca6865de2 1659 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1660 }
AzureIoTClient 12:658ca6865de2 1661 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1662 {
AzureIoTClient 12:658ca6865de2 1663 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1664 }
AzureIoTClient 12:658ca6865de2 1665 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1666 {
AzureIoTClient 12:658ca6865de2 1667 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1668 }
AzureIoTClient 11:31ebaeb51e1e 1669 }
AzureIoTClient 11:31ebaeb51e1e 1670 }
AzureIoTClient 11:31ebaeb51e1e 1671 }
AzureIoTClient 11:31ebaeb51e1e 1672 }
AzureIoTClient 11:31ebaeb51e1e 1673 return result;
AzureIoTClient 11:31ebaeb51e1e 1674 }
AzureIoTClient 11:31ebaeb51e1e 1675
AzureIoTClient 11:31ebaeb51e1e 1676 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1677 {
AzureIoTClient 12:658ca6865de2 1678 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 1679 return result;
AzureIoTClient 11:31ebaeb51e1e 1680 }
AzureIoTClient 11:31ebaeb51e1e 1681
AzureIoTClient 11:31ebaeb51e1e 1682 static int construct_credential_information(const IOTHUB_CLIENT_CONFIG* upperConfig, PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1683 {
AzureIoTClient 11:31ebaeb51e1e 1684 int result;
AzureIoTClient 11:31ebaeb51e1e 1685 if (upperConfig->deviceKey != NULL)
AzureIoTClient 11:31ebaeb51e1e 1686 {
AzureIoTClient 11:31ebaeb51e1e 1687 transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey = STRING_construct(upperConfig->deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1688 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey == NULL)
AzureIoTClient 11:31ebaeb51e1e 1689 {
AzureIoTClient 11:31ebaeb51e1e 1690 LogError("Could not create device key for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1691 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1692 }
AzureIoTClient 11:31ebaeb51e1e 1693 else if ((transport_data->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1694 {
AzureIoTClient 11:31ebaeb51e1e 1695 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1696 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1697 }
AzureIoTClient 11:31ebaeb51e1e 1698 else
AzureIoTClient 11:31ebaeb51e1e 1699 {
AzureIoTClient 11:31ebaeb51e1e 1700 transport_data->transport_creds.credential_type = DEVICE_KEY;
AzureIoTClient 11:31ebaeb51e1e 1701 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1702 }
AzureIoTClient 11:31ebaeb51e1e 1703 }
AzureIoTClient 11:31ebaeb51e1e 1704 else if (upperConfig->deviceSasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1705 {
AzureIoTClient 11:31ebaeb51e1e 1706 transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken = STRING_construct(upperConfig->deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1707 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1708 {
AzureIoTClient 11:31ebaeb51e1e 1709 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1710 }
AzureIoTClient 11:31ebaeb51e1e 1711 else
AzureIoTClient 11:31ebaeb51e1e 1712 {
AzureIoTClient 11:31ebaeb51e1e 1713 transport_data->transport_creds.credential_type = SAS_TOKEN_FROM_USER;
AzureIoTClient 11:31ebaeb51e1e 1714 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1715 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1716 }
AzureIoTClient 11:31ebaeb51e1e 1717 }
AzureIoTClient 11:31ebaeb51e1e 1718 else
AzureIoTClient 11:31ebaeb51e1e 1719 {
AzureIoTClient 12:658ca6865de2 1720 /* 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 1721 transport_data->transport_creds.credential_type = X509;
AzureIoTClient 11:31ebaeb51e1e 1722 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1723 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1724 }
AzureIoTClient 11:31ebaeb51e1e 1725 return result;
AzureIoTClient 11:31ebaeb51e1e 1726 }
AzureIoTClient 11:31ebaeb51e1e 1727
AzureIoTClient 11:31ebaeb51e1e 1728 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 1729 {
AzureIoTClient 11:31ebaeb51e1e 1730 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1731 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1732 {
AzureIoTClient 11:31ebaeb51e1e 1733 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1734 }
Azure.IoT.Build 13:606465879c57 1735 else if ((state->msgTickCounter = tickcounter_create()) == NULL)
Azure.IoT.Build 13:606465879c57 1736 {
Azure.IoT.Build 13:606465879c57 1737 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT.Build 13:606465879c57 1738 free(state);
Azure.IoT.Build 13:606465879c57 1739 state = NULL;
Azure.IoT.Build 13:606465879c57 1740 }
AzureIoTClient 11:31ebaeb51e1e 1741 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1742 {
AzureIoTClient 11:31ebaeb51e1e 1743 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1744 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1745 free(state);
AzureIoTClient 11:31ebaeb51e1e 1746 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1747 }
AzureIoTClient 11:31ebaeb51e1e 1748 else
AzureIoTClient 11:31ebaeb51e1e 1749 {
AzureIoTClient 11:31ebaeb51e1e 1750 if (construct_credential_information(upperConfig, state) != 0)
AzureIoTClient 11:31ebaeb51e1e 1751 {
AzureIoTClient 11:31ebaeb51e1e 1752 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1753 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1754 free(state);
AzureIoTClient 11:31ebaeb51e1e 1755 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1756 }
AzureIoTClient 11:31ebaeb51e1e 1757 else if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1758 {
AzureIoTClient 11:31ebaeb51e1e 1759 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1760 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1761 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1762 {
AzureIoTClient 11:31ebaeb51e1e 1763 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1764 }
AzureIoTClient 11:31ebaeb51e1e 1765 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1766 {
AzureIoTClient 11:31ebaeb51e1e 1767 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1768 }
AzureIoTClient 11:31ebaeb51e1e 1769 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1770 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1771 free(state);
AzureIoTClient 11:31ebaeb51e1e 1772 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1773 }
AzureIoTClient 11:31ebaeb51e1e 1774 else
AzureIoTClient 11:31ebaeb51e1e 1775 {
AzureIoTClient 12:658ca6865de2 1776 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 11:31ebaeb51e1e 1777 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1778 {
AzureIoTClient 11:31ebaeb51e1e 1779 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1780 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1781 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1782 {
AzureIoTClient 11:31ebaeb51e1e 1783 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1784 }
AzureIoTClient 11:31ebaeb51e1e 1785 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1786 {
AzureIoTClient 11:31ebaeb51e1e 1787 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1788 }
AzureIoTClient 11:31ebaeb51e1e 1789 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1790 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1791 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1792 free(state);
AzureIoTClient 11:31ebaeb51e1e 1793 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1794 }
AzureIoTClient 11:31ebaeb51e1e 1795 else
AzureIoTClient 11:31ebaeb51e1e 1796 {
AzureIoTClient 11:31ebaeb51e1e 1797 /* 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 1798 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1799 {
AzureIoTClient 11:31ebaeb51e1e 1800 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 11:31ebaeb51e1e 1801 }
AzureIoTClient 11:31ebaeb51e1e 1802 else
AzureIoTClient 11:31ebaeb51e1e 1803 {
AzureIoTClient 11:31ebaeb51e1e 1804 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 11:31ebaeb51e1e 1805 }
AzureIoTClient 11:31ebaeb51e1e 1806
AzureIoTClient 11:31ebaeb51e1e 1807 if (state->hostAddress == NULL)
AzureIoTClient 11:31ebaeb51e1e 1808 {
AzureIoTClient 11:31ebaeb51e1e 1809 LogError("failure constructing host address.");
AzureIoTClient 11:31ebaeb51e1e 1810 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1811 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1812 {
AzureIoTClient 11:31ebaeb51e1e 1813 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1814 }
AzureIoTClient 11:31ebaeb51e1e 1815 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1816 {
AzureIoTClient 11:31ebaeb51e1e 1817 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1818 }
AzureIoTClient 11:31ebaeb51e1e 1819 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1820 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1821 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1822 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1823 free(state);
AzureIoTClient 11:31ebaeb51e1e 1824 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1825 }
AzureIoTClient 11:31ebaeb51e1e 1826 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1827 {
AzureIoTClient 11:31ebaeb51e1e 1828 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1829 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1830 {
AzureIoTClient 11:31ebaeb51e1e 1831 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1832 }
AzureIoTClient 11:31ebaeb51e1e 1833 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1834 {
AzureIoTClient 11:31ebaeb51e1e 1835 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1836 }
AzureIoTClient 11:31ebaeb51e1e 1837 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1838 STRING_delete(state->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1839 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1840 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1841 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1842 free(state);
AzureIoTClient 11:31ebaeb51e1e 1843 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1844 }
AzureIoTClient 11:31ebaeb51e1e 1845 else
AzureIoTClient 11:31ebaeb51e1e 1846 {
AzureIoTClient 12:658ca6865de2 1847 /* 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 1848 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 12:658ca6865de2 1849 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 11:31ebaeb51e1e 1850 state->isDestroyCalled = false;
AzureIoTClient 11:31ebaeb51e1e 1851 state->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 1852 state->isConnected = false;
AzureIoTClient 12:658ca6865de2 1853 state->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1854 state->isRecoverableError = true;
AzureIoTClient 11:31ebaeb51e1e 1855 state->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 1856 state->llClientHandle = NULL;
AzureIoTClient 11:31ebaeb51e1e 1857 state->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1858 state->portNum = 0;
AzureIoTClient 11:31ebaeb51e1e 1859 state->waitingToSend = waitingToSend;
AzureIoTClient 11:31ebaeb51e1e 1860 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1861 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 11:31ebaeb51e1e 1862 state->connectFailCount = 0;
AzureIoTClient 11:31ebaeb51e1e 1863 state->connectTick = 0;
AzureIoTClient 11:31ebaeb51e1e 1864 state->topic_MqttMessage = NULL;
AzureIoTClient 12:658ca6865de2 1865 state->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 1866 state->topic_NotifyState = NULL;
AzureIoTClient 11:31ebaeb51e1e 1867 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 12:658ca6865de2 1868 state->topic_DeviceMethods = NULL;
AzureIoTClient 11:31ebaeb51e1e 1869 state->log_trace = state->raw_trace = false;
AzureIoTClient 12:658ca6865de2 1870 state->retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 1871 srand((unsigned int)get_time(NULL));
AzureIoTClient 11:31ebaeb51e1e 1872 }
AzureIoTClient 11:31ebaeb51e1e 1873 }
AzureIoTClient 11:31ebaeb51e1e 1874 }
AzureIoTClient 11:31ebaeb51e1e 1875 }
AzureIoTClient 11:31ebaeb51e1e 1876 return state;
AzureIoTClient 11:31ebaeb51e1e 1877 }
AzureIoTClient 11:31ebaeb51e1e 1878
AzureIoTClient 11:31ebaeb51e1e 1879 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 1880 {
AzureIoTClient 11:31ebaeb51e1e 1881 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 1882 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 1883
AzureIoTClient 12:658ca6865de2 1884 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1885 /* 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 1886 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1887 {
AzureIoTClient 11:31ebaeb51e1e 1888 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1889 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1890 }
AzureIoTClient 12:658ca6865de2 1891 /* 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 1892 /* 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 1893 /* 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 1894 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1895 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1896 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1897 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 1898 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1899 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 1900 {
AzureIoTClient 11:31ebaeb51e1e 1901 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 1902 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1903 }
AzureIoTClient 12:658ca6865de2 1904 /* 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 1905 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 1906 {
AzureIoTClient 11:31ebaeb51e1e 1907 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 1908 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1909 }
AzureIoTClient 12:658ca6865de2 1910 /* 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 1911 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 1912 {
AzureIoTClient 11:31ebaeb51e1e 1913 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 1914 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1915 }
AzureIoTClient 12:658ca6865de2 1916 /* 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 1917 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 1918 {
AzureIoTClient 11:31ebaeb51e1e 1919 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 1920 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1921 }
AzureIoTClient 12:658ca6865de2 1922 /* 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 1923 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 1924 {
AzureIoTClient 11:31ebaeb51e1e 1925 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 1926 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1927 }
AzureIoTClient 12:658ca6865de2 1928 /* 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 1929 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 1930 {
AzureIoTClient 11:31ebaeb51e1e 1931 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 1932 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1933 }
AzureIoTClient 11:31ebaeb51e1e 1934 else
AzureIoTClient 11:31ebaeb51e1e 1935 {
AzureIoTClient 11:31ebaeb51e1e 1936 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
Azure.IoT.Build 13:606465879c57 1937 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 1938 {
AzureIoTClient 11:31ebaeb51e1e 1939 result->get_io_transport = get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 1940 }
AzureIoTClient 11:31ebaeb51e1e 1941 }
AzureIoTClient 12:658ca6865de2 1942 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 1943 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 1944 return result;
AzureIoTClient 11:31ebaeb51e1e 1945 }
AzureIoTClient 11:31ebaeb51e1e 1946
AzureIoTClient 11:31ebaeb51e1e 1947 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1948 {
AzureIoTClient 11:31ebaeb51e1e 1949 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1950 xio_destroy(transport_data->xioTransport);
AzureIoTClient 11:31ebaeb51e1e 1951 transport_data->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1952
AzureIoTClient 11:31ebaeb51e1e 1953 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1954 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1955 }
AzureIoTClient 11:31ebaeb51e1e 1956
AzureIoTClient 11:31ebaeb51e1e 1957 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 1958 {
AzureIoTClient 12:658ca6865de2 1959 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1960 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 1961 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 1962 {
AzureIoTClient 11:31ebaeb51e1e 1963 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 1964
AzureIoTClient 11:31ebaeb51e1e 1965 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 1966
AzureIoTClient 11:31ebaeb51e1e 1967 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 1968 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 1969 {
AzureIoTClient 11:31ebaeb51e1e 1970 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 1971 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1972 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 1973 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1974 }
AzureIoTClient 12:658ca6865de2 1975 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 1976 {
AzureIoTClient 12:658ca6865de2 1977 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 1978 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1979 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 1980 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 1981 }
AzureIoTClient 11:31ebaeb51e1e 1982
AzureIoTClient 11:31ebaeb51e1e 1983 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1984 {
AzureIoTClient 11:31ebaeb51e1e 1985 case SAS_TOKEN_FROM_USER:
AzureIoTClient 11:31ebaeb51e1e 1986 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1987 break;
AzureIoTClient 11:31ebaeb51e1e 1988 case DEVICE_KEY:
AzureIoTClient 11:31ebaeb51e1e 1989 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1990 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1991 break;
AzureIoTClient 11:31ebaeb51e1e 1992 case X509:
AzureIoTClient 11:31ebaeb51e1e 1993 default:
AzureIoTClient 11:31ebaeb51e1e 1994 break;
AzureIoTClient 11:31ebaeb51e1e 1995 }
AzureIoTClient 11:31ebaeb51e1e 1996
AzureIoTClient 12:658ca6865de2 1997 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 1998 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1999 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 2000 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2001 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 2002 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 2003 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 2004 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2005 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2006 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2007
Azure.IoT.Build 13:606465879c57 2008 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 2009 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 11:31ebaeb51e1e 2010 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2011 }
AzureIoTClient 11:31ebaeb51e1e 2012 }
AzureIoTClient 11:31ebaeb51e1e 2013
AzureIoTClient 12:658ca6865de2 2014 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2015 {
AzureIoTClient 12:658ca6865de2 2016 int result;
AzureIoTClient 12:658ca6865de2 2017 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2018 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2019 {
AzureIoTClient 12:658ca6865de2 2020 /* 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 2021 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 2022 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2023 }
AzureIoTClient 12:658ca6865de2 2024 else
AzureIoTClient 12:658ca6865de2 2025 {
AzureIoTClient 12:658ca6865de2 2026 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2027 {
AzureIoTClient 12:658ca6865de2 2028 /* 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 2029 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2030 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2031 {
AzureIoTClient 12:658ca6865de2 2032 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2033 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 12:658ca6865de2 2034 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2035 }
AzureIoTClient 12:658ca6865de2 2036 else
AzureIoTClient 12:658ca6865de2 2037 {
AzureIoTClient 12:658ca6865de2 2038 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2039 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2040 result = 0;
AzureIoTClient 12:658ca6865de2 2041 }
AzureIoTClient 12:658ca6865de2 2042 }
AzureIoTClient 12:658ca6865de2 2043 else
AzureIoTClient 12:658ca6865de2 2044 {
AzureIoTClient 12:658ca6865de2 2045 result = 0;
AzureIoTClient 12:658ca6865de2 2046 }
AzureIoTClient 12:658ca6865de2 2047 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2048 {
AzureIoTClient 12:658ca6865de2 2049 /* 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 2050 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2051 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2052 {
AzureIoTClient 12:658ca6865de2 2053 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 12:658ca6865de2 2054 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2055 }
AzureIoTClient 12:658ca6865de2 2056 else
AzureIoTClient 12:658ca6865de2 2057 {
AzureIoTClient 12:658ca6865de2 2058 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2059 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2060 result = 0;
AzureIoTClient 12:658ca6865de2 2061 }
AzureIoTClient 12:658ca6865de2 2062 }
AzureIoTClient 12:658ca6865de2 2063 if (result == 0)
AzureIoTClient 12:658ca6865de2 2064 {
AzureIoTClient 12:658ca6865de2 2065 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2066 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2067 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2068 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2069 {
AzureIoTClient 12:658ca6865de2 2070 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2071 }
AzureIoTClient 12:658ca6865de2 2072 }
AzureIoTClient 12:658ca6865de2 2073 }
AzureIoTClient 12:658ca6865de2 2074 return result;
AzureIoTClient 12:658ca6865de2 2075 }
AzureIoTClient 12:658ca6865de2 2076
AzureIoTClient 12:658ca6865de2 2077 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2078 {
AzureIoTClient 12:658ca6865de2 2079 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2080 /* 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 2081 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2082 {
AzureIoTClient 12:658ca6865de2 2083 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2084 {
AzureIoTClient 12:658ca6865de2 2085 /* 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 2086 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2087 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2088 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2089 }
AzureIoTClient 12:658ca6865de2 2090 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2091 {
AzureIoTClient 12:658ca6865de2 2092 /* 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 2093 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2094 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2095 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2096 }
AzureIoTClient 12:658ca6865de2 2097 }
AzureIoTClient 12:658ca6865de2 2098 else
AzureIoTClient 12:658ca6865de2 2099 {
AzureIoTClient 12:658ca6865de2 2100 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2101 }
AzureIoTClient 12:658ca6865de2 2102 }
AzureIoTClient 12:658ca6865de2 2103
AzureIoTClient 12:658ca6865de2 2104 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2105 {
AzureIoTClient 12:658ca6865de2 2106 int result;
AzureIoTClient 12:658ca6865de2 2107 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2108
AzureIoTClient 12:658ca6865de2 2109 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2110 {
AzureIoTClient 12:658ca6865de2 2111 /*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 2112 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 2113 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2114 }
AzureIoTClient 12:658ca6865de2 2115 else
AzureIoTClient 12:658ca6865de2 2116 {
AzureIoTClient 12:658ca6865de2 2117 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2118 {
AzureIoTClient 12:658ca6865de2 2119 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2120 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2121 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2122 {
AzureIoTClient 12:658ca6865de2 2123 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2124 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 12:658ca6865de2 2125 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2126 }
AzureIoTClient 12:658ca6865de2 2127 else
AzureIoTClient 12:658ca6865de2 2128 {
AzureIoTClient 12:658ca6865de2 2129 /*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 2130 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2131 result = 0;
AzureIoTClient 12:658ca6865de2 2132 }
AzureIoTClient 12:658ca6865de2 2133 }
AzureIoTClient 12:658ca6865de2 2134 else
AzureIoTClient 12:658ca6865de2 2135 {
AzureIoTClient 12:658ca6865de2 2136 /*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 2137 result = 0;
AzureIoTClient 12:658ca6865de2 2138 }
AzureIoTClient 12:658ca6865de2 2139
AzureIoTClient 12:658ca6865de2 2140 if (result == 0)
AzureIoTClient 12:658ca6865de2 2141 {
AzureIoTClient 12:658ca6865de2 2142 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2143 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2144 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2145 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2146 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2147 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2148 {
AzureIoTClient 12:658ca6865de2 2149 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2150 }
AzureIoTClient 12:658ca6865de2 2151 }
AzureIoTClient 12:658ca6865de2 2152 }
AzureIoTClient 12:658ca6865de2 2153 return result;
AzureIoTClient 12:658ca6865de2 2154 }
AzureIoTClient 12:658ca6865de2 2155
AzureIoTClient 12:658ca6865de2 2156 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2157 {
AzureIoTClient 12:658ca6865de2 2158 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2159 /*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 2160 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2161 {
AzureIoTClient 12:658ca6865de2 2162 /*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 2163 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2164 {
AzureIoTClient 12:658ca6865de2 2165 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2166 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2167 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2168
AzureIoTClient 12:658ca6865de2 2169 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2170 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2171 {
AzureIoTClient 12:658ca6865de2 2172 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2173 }
AzureIoTClient 12:658ca6865de2 2174
AzureIoTClient 12:658ca6865de2 2175 /*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 2176 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2177 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2178 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2179 }
AzureIoTClient 12:658ca6865de2 2180 }
AzureIoTClient 12:658ca6865de2 2181 else
AzureIoTClient 12:658ca6865de2 2182 {
AzureIoTClient 12:658ca6865de2 2183 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2184 }
AzureIoTClient 12:658ca6865de2 2185 }
AzureIoTClient 12:658ca6865de2 2186
AzureIoTClient 14:4dc2b011be33 2187 int IoTHubTransport_MQTT_Common_DeviceMethod_Response(IOTHUB_DEVICE_HANDLE handle, METHOD_HANDLE methodId, const unsigned char* response, size_t respSize, int status)
AzureIoTClient 14:4dc2b011be33 2188 {
AzureIoTClient 14:4dc2b011be33 2189 int result;
AzureIoTClient 14:4dc2b011be33 2190 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 14:4dc2b011be33 2191 if (transport_data != NULL)
AzureIoTClient 14:4dc2b011be33 2192 {
AzureIoTClient 14:4dc2b011be33 2193 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_042: [ IoTHubTransport_MQTT_Common_DeviceMethod_Response shall publish an mqtt message for the device method response. ] */
AzureIoTClient 14:4dc2b011be33 2194 DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
AzureIoTClient 14:4dc2b011be33 2195 if (dev_method_info == NULL)
AzureIoTClient 14:4dc2b011be33 2196 {
AzureIoTClient 14:4dc2b011be33 2197 LogError("Failure: DEVICE_METHOD_INFO was NULL");
AzureIoTClient 14:4dc2b011be33 2198 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2199 }
AzureIoTClient 14:4dc2b011be33 2200 else
AzureIoTClient 14:4dc2b011be33 2201 {
AzureIoTClient 14:4dc2b011be33 2202 if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
AzureIoTClient 14:4dc2b011be33 2203 {
AzureIoTClient 14:4dc2b011be33 2204 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_051: [ If any error is encountered, IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 14:4dc2b011be33 2205 LogError("Failure: publishing device method response");
AzureIoTClient 14:4dc2b011be33 2206 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2207 }
AzureIoTClient 14:4dc2b011be33 2208 else
AzureIoTClient 14:4dc2b011be33 2209 {
AzureIoTClient 14:4dc2b011be33 2210 result = 0;
AzureIoTClient 14:4dc2b011be33 2211 }
AzureIoTClient 14:4dc2b011be33 2212 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 2213 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 2214 }
AzureIoTClient 14:4dc2b011be33 2215 }
AzureIoTClient 14:4dc2b011be33 2216 else
AzureIoTClient 14:4dc2b011be33 2217 {
AzureIoTClient 14:4dc2b011be33 2218 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ If the parameter handle is NULL than IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 14:4dc2b011be33 2219 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2220 LogError("Failure: invalid IOTHUB_DEVICE_HANDLE parameter specified");
AzureIoTClient 14:4dc2b011be33 2221 }
AzureIoTClient 14:4dc2b011be33 2222 return result;
AzureIoTClient 14:4dc2b011be33 2223 }
AzureIoTClient 14:4dc2b011be33 2224
AzureIoTClient 11:31ebaeb51e1e 2225 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2226 {
AzureIoTClient 11:31ebaeb51e1e 2227 int result;
AzureIoTClient 11:31ebaeb51e1e 2228 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2229 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2230 {
AzureIoTClient 12:658ca6865de2 2231 /* 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 2232 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 11:31ebaeb51e1e 2233 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2234 }
AzureIoTClient 11:31ebaeb51e1e 2235 else
AzureIoTClient 11:31ebaeb51e1e 2236 {
AzureIoTClient 12:658ca6865de2 2237 /* 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 2238 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2239 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2240 {
AzureIoTClient 11:31ebaeb51e1e 2241 LogError("Failure constructing Message Topic");
AzureIoTClient 11:31ebaeb51e1e 2242 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2243 }
AzureIoTClient 11:31ebaeb51e1e 2244 else
AzureIoTClient 11:31ebaeb51e1e 2245 {
AzureIoTClient 11:31ebaeb51e1e 2246 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2247 /* 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 2248 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2249 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2250 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2251 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2252 {
AzureIoTClient 11:31ebaeb51e1e 2253 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2254 }
AzureIoTClient 11:31ebaeb51e1e 2255 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2256 }
AzureIoTClient 11:31ebaeb51e1e 2257 }
AzureIoTClient 11:31ebaeb51e1e 2258 return result;
AzureIoTClient 11:31ebaeb51e1e 2259 }
AzureIoTClient 11:31ebaeb51e1e 2260
AzureIoTClient 11:31ebaeb51e1e 2261 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2262 {
AzureIoTClient 11:31ebaeb51e1e 2263 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2264 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2265 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2266 {
AzureIoTClient 12:658ca6865de2 2267 /* 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 2268 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2269 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2270 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2271 {
AzureIoTClient 11:31ebaeb51e1e 2272 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2273 }
AzureIoTClient 11:31ebaeb51e1e 2274 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2275 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2276 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2277 }
AzureIoTClient 11:31ebaeb51e1e 2278 else
AzureIoTClient 11:31ebaeb51e1e 2279 {
AzureIoTClient 11:31ebaeb51e1e 2280 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2281 }
AzureIoTClient 11:31ebaeb51e1e 2282 }
AzureIoTClient 11:31ebaeb51e1e 2283
AzureIoTClient 12:658ca6865de2 2284 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 2285 {
AzureIoTClient 12:658ca6865de2 2286 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2287 /* 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 2288 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2289 {
AzureIoTClient 12:658ca6865de2 2290 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2291 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2292 }
AzureIoTClient 12:658ca6865de2 2293 else
AzureIoTClient 12:658ca6865de2 2294 {
AzureIoTClient 12:658ca6865de2 2295 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2296
AzureIoTClient 12:658ca6865de2 2297 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2298 {
AzureIoTClient 12:658ca6865de2 2299 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2300 {
AzureIoTClient 12:658ca6865de2 2301 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2302 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2303 {
AzureIoTClient 12:658ca6865de2 2304 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2305 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2306 }
AzureIoTClient 12:658ca6865de2 2307 else
AzureIoTClient 12:658ca6865de2 2308 {
AzureIoTClient 12:658ca6865de2 2309 /*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 2310 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2311 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2312 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2313
AzureIoTClient 12:658ca6865de2 2314 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2315 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2316
AzureIoTClient 12:658ca6865de2 2317 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2318 {
AzureIoTClient 12:658ca6865de2 2319 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2320
AzureIoTClient 12:658ca6865de2 2321 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2322 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2323 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2324 }
AzureIoTClient 12:658ca6865de2 2325 else
AzureIoTClient 12:658ca6865de2 2326 {
AzureIoTClient 12:658ca6865de2 2327 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2328 }
AzureIoTClient 12:658ca6865de2 2329 }
AzureIoTClient 12:658ca6865de2 2330 }
AzureIoTClient 12:658ca6865de2 2331 else
AzureIoTClient 12:658ca6865de2 2332 {
AzureIoTClient 12:658ca6865de2 2333 /* 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 2334 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2335 }
AzureIoTClient 12:658ca6865de2 2336 }
AzureIoTClient 12:658ca6865de2 2337 else
AzureIoTClient 12:658ca6865de2 2338 {
AzureIoTClient 12:658ca6865de2 2339 /* 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 2340 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2341 }
AzureIoTClient 12:658ca6865de2 2342 }
AzureIoTClient 12:658ca6865de2 2343 return result;
AzureIoTClient 12:658ca6865de2 2344 }
AzureIoTClient 12:658ca6865de2 2345
AzureIoTClient 12:658ca6865de2 2346 /* 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 2347 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2348 {
AzureIoTClient 12:658ca6865de2 2349 /* 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 2350 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2351 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2352 {
AzureIoTClient 11:31ebaeb51e1e 2353 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2354
AzureIoTClient 11:31ebaeb51e1e 2355 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2356 {
AzureIoTClient 11:31ebaeb51e1e 2357 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2358 }
AzureIoTClient 11:31ebaeb51e1e 2359 else
AzureIoTClient 11:31ebaeb51e1e 2360 {
AzureIoTClient 11:31ebaeb51e1e 2361 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2362 {
AzureIoTClient 11:31ebaeb51e1e 2363 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2364 }
AzureIoTClient 11:31ebaeb51e1e 2365 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2366 {
AzureIoTClient 12:658ca6865de2 2367 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2368 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2369 {
AzureIoTClient 12:658ca6865de2 2370 /* 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 2371 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2372 {
AzureIoTClient 12:658ca6865de2 2373 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2374 }
AzureIoTClient 12:658ca6865de2 2375 else
AzureIoTClient 12:658ca6865de2 2376 {
AzureIoTClient 12:658ca6865de2 2377 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2378 }
AzureIoTClient 12:658ca6865de2 2379 }
AzureIoTClient 11:31ebaeb51e1e 2380 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2381 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2382 }
AzureIoTClient 11:31ebaeb51e1e 2383 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2384 {
AzureIoTClient 11:31ebaeb51e1e 2385 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2386 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2387 {
AzureIoTClient 11:31ebaeb51e1e 2388 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2389 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2390 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2391
Azure.IoT.Build 13:606465879c57 2392 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2393 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2394 /* 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 2395 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2396 {
AzureIoTClient 12:658ca6865de2 2397 /* 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 2398 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2399 {
AzureIoTClient 11:31ebaeb51e1e 2400 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2401 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2402 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2403 }
AzureIoTClient 11:31ebaeb51e1e 2404 else
AzureIoTClient 11:31ebaeb51e1e 2405 {
AzureIoTClient 11:31ebaeb51e1e 2406 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2407 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2408 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2409 {
AzureIoTClient 11:31ebaeb51e1e 2410 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2411 }
AzureIoTClient 11:31ebaeb51e1e 2412 else
AzureIoTClient 11:31ebaeb51e1e 2413 {
AzureIoTClient 11:31ebaeb51e1e 2414 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2415 {
AzureIoTClient 11:31ebaeb51e1e 2416 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2417 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2418 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2419 }
AzureIoTClient 11:31ebaeb51e1e 2420 }
AzureIoTClient 11:31ebaeb51e1e 2421 }
AzureIoTClient 11:31ebaeb51e1e 2422 }
AzureIoTClient 11:31ebaeb51e1e 2423 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2424 }
AzureIoTClient 11:31ebaeb51e1e 2425
AzureIoTClient 11:31ebaeb51e1e 2426 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2427 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2428 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2429 {
AzureIoTClient 11:31ebaeb51e1e 2430 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2431 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2432 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2433
AzureIoTClient 12:658ca6865de2 2434 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2435 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2436 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2437 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2438 {
AzureIoTClient 11:31ebaeb51e1e 2439 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2440 }
AzureIoTClient 11:31ebaeb51e1e 2441 else
AzureIoTClient 11:31ebaeb51e1e 2442 {
AzureIoTClient 12:658ca6865de2 2443 /* 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 2444 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2445 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2446 {
AzureIoTClient 11:31ebaeb51e1e 2447 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2448 }
AzureIoTClient 11:31ebaeb51e1e 2449 else
AzureIoTClient 11:31ebaeb51e1e 2450 {
AzureIoTClient 11:31ebaeb51e1e 2451 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2452 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2453 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2454 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2455 {
AzureIoTClient 11:31ebaeb51e1e 2456 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2457 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2458 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2459 }
AzureIoTClient 11:31ebaeb51e1e 2460 else
AzureIoTClient 11:31ebaeb51e1e 2461 {
AzureIoTClient 11:31ebaeb51e1e 2462 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2463 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2464 }
AzureIoTClient 11:31ebaeb51e1e 2465 }
AzureIoTClient 11:31ebaeb51e1e 2466 }
AzureIoTClient 11:31ebaeb51e1e 2467 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2468 }
AzureIoTClient 11:31ebaeb51e1e 2469 }
AzureIoTClient 12:658ca6865de2 2470 /* 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 2471 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2472 }
AzureIoTClient 11:31ebaeb51e1e 2473 }
AzureIoTClient 11:31ebaeb51e1e 2474 }
AzureIoTClient 11:31ebaeb51e1e 2475
AzureIoTClient 11:31ebaeb51e1e 2476 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2477 {
AzureIoTClient 11:31ebaeb51e1e 2478 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2479
AzureIoTClient 11:31ebaeb51e1e 2480 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2481 {
AzureIoTClient 12:658ca6865de2 2482 /* 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 2483 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2484 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2485 }
AzureIoTClient 11:31ebaeb51e1e 2486 else
AzureIoTClient 11:31ebaeb51e1e 2487 {
AzureIoTClient 11:31ebaeb51e1e 2488 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2489 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2490 {
AzureIoTClient 12:658ca6865de2 2491 /* 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 2492 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2493 }
AzureIoTClient 11:31ebaeb51e1e 2494 else
AzureIoTClient 11:31ebaeb51e1e 2495 {
AzureIoTClient 12:658ca6865de2 2496 /* 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 2497 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2498 }
AzureIoTClient 11:31ebaeb51e1e 2499 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2500 }
AzureIoTClient 11:31ebaeb51e1e 2501 return result;
AzureIoTClient 11:31ebaeb51e1e 2502 }
AzureIoTClient 11:31ebaeb51e1e 2503
AzureIoTClient 11:31ebaeb51e1e 2504 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2505 {
AzureIoTClient 12:658ca6865de2 2506 /* 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 2507 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2508 if (
AzureIoTClient 11:31ebaeb51e1e 2509 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2510 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2511 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2512 )
AzureIoTClient 11:31ebaeb51e1e 2513 {
AzureIoTClient 11:31ebaeb51e1e 2514 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2515 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2516 }
AzureIoTClient 11:31ebaeb51e1e 2517 else
AzureIoTClient 11:31ebaeb51e1e 2518 {
AzureIoTClient 11:31ebaeb51e1e 2519 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2520 /* 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 2521 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2522 {
AzureIoTClient 11:31ebaeb51e1e 2523 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2524 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2525 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2526 }
AzureIoTClient 11:31ebaeb51e1e 2527 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2528 {
AzureIoTClient 11:31ebaeb51e1e 2529 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2530 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2531 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2532 }
AzureIoTClient 11:31ebaeb51e1e 2533 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2534 {
AzureIoTClient 11:31ebaeb51e1e 2535 /* 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 2536 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2537 /* 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 2538 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2539 {
AzureIoTClient 11:31ebaeb51e1e 2540 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 11:31ebaeb51e1e 2541 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 2542 {
AzureIoTClient 12:658ca6865de2 2543 /* 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 2544 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2545 }
AzureIoTClient 11:31ebaeb51e1e 2546 }
AzureIoTClient 11:31ebaeb51e1e 2547 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2548 }
AzureIoTClient 11:31ebaeb51e1e 2549 /* 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 2550 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2551 {
AzureIoTClient 11:31ebaeb51e1e 2552 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2553 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2554 }
AzureIoTClient 11:31ebaeb51e1e 2555 /* 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 2556 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2557 {
AzureIoTClient 11:31ebaeb51e1e 2558 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2559 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2560 }
AzureIoTClient 11:31ebaeb51e1e 2561 else
AzureIoTClient 11:31ebaeb51e1e 2562 {
AzureIoTClient 12:658ca6865de2 2563 /* 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 2564 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2565 {
AzureIoTClient 11:31ebaeb51e1e 2566 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2567 {
AzureIoTClient 11:31ebaeb51e1e 2568 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2569 }
AzureIoTClient 11:31ebaeb51e1e 2570 else
AzureIoTClient 11:31ebaeb51e1e 2571 {
AzureIoTClient 12:658ca6865de2 2572 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2573 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2574 }
AzureIoTClient 11:31ebaeb51e1e 2575 }
AzureIoTClient 11:31ebaeb51e1e 2576 else
AzureIoTClient 11:31ebaeb51e1e 2577 {
AzureIoTClient 11:31ebaeb51e1e 2578 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2579 }
AzureIoTClient 11:31ebaeb51e1e 2580 }
AzureIoTClient 11:31ebaeb51e1e 2581 }
AzureIoTClient 11:31ebaeb51e1e 2582 return result;
AzureIoTClient 11:31ebaeb51e1e 2583 }
AzureIoTClient 11:31ebaeb51e1e 2584
AzureIoTClient 11:31ebaeb51e1e 2585 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 2586 {
AzureIoTClient 11:31ebaeb51e1e 2587 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2588 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2589
AzureIoTClient 12:658ca6865de2 2590 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2591 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2592 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2593 {
AzureIoTClient 12:658ca6865de2 2594 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2595 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2596 }
AzureIoTClient 11:31ebaeb51e1e 2597 else
AzureIoTClient 11:31ebaeb51e1e 2598 {
AzureIoTClient 11:31ebaeb51e1e 2599 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2600
AzureIoTClient 12:658ca6865de2 2601 // 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 2602 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2603 {
AzureIoTClient 12:658ca6865de2 2604 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2605 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2606 }
AzureIoTClient 12:658ca6865de2 2607 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2608 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2609 {
AzureIoTClient 12:658ca6865de2 2610 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2611 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2612 }
AzureIoTClient 11:31ebaeb51e1e 2613 else
AzureIoTClient 11:31ebaeb51e1e 2614 {
AzureIoTClient 12:658ca6865de2 2615 // 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 2616 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2617 {
AzureIoTClient 12:658ca6865de2 2618 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2619 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2620 }
AzureIoTClient 11:31ebaeb51e1e 2621 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 2622 {
AzureIoTClient 12:658ca6865de2 2623 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2624 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2625 }
AzureIoTClient 11:31ebaeb51e1e 2626 else
AzureIoTClient 11:31ebaeb51e1e 2627 {
AzureIoTClient 11:31ebaeb51e1e 2628 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2629 {
AzureIoTClient 11:31ebaeb51e1e 2630 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2631 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2632 }
AzureIoTClient 11:31ebaeb51e1e 2633 else
AzureIoTClient 11:31ebaeb51e1e 2634 {
AzureIoTClient 11:31ebaeb51e1e 2635 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2636 // 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 2637 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2638 }
AzureIoTClient 11:31ebaeb51e1e 2639 }
AzureIoTClient 11:31ebaeb51e1e 2640 }
AzureIoTClient 11:31ebaeb51e1e 2641 }
AzureIoTClient 11:31ebaeb51e1e 2642
AzureIoTClient 11:31ebaeb51e1e 2643 return result;
AzureIoTClient 11:31ebaeb51e1e 2644 }
AzureIoTClient 11:31ebaeb51e1e 2645
AzureIoTClient 11:31ebaeb51e1e 2646 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2647 {
AzureIoTClient 14:4dc2b011be33 2648 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
AzureIoTClient 11:31ebaeb51e1e 2649 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2650 {
AzureIoTClient 11:31ebaeb51e1e 2651 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2652
AzureIoTClient 11:31ebaeb51e1e 2653 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2654 }
AzureIoTClient 11:31ebaeb51e1e 2655 }
AzureIoTClient 11:31ebaeb51e1e 2656
AzureIoTClient 11:31ebaeb51e1e 2657 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2658 {
AzureIoTClient 11:31ebaeb51e1e 2659 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2660 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2661 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2662 {
AzureIoTClient 11:31ebaeb51e1e 2663 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2664 }
AzureIoTClient 11:31ebaeb51e1e 2665 else
AzureIoTClient 11:31ebaeb51e1e 2666 {
AzureIoTClient 12:658ca6865de2 2667 /*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 2668 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 11:31ebaeb51e1e 2669 }
AzureIoTClient 11:31ebaeb51e1e 2670 return result;
AzureIoTClient 11:31ebaeb51e1e 2671 }