[388] | 1 | // Copyright (c) Microsoft. All rights reserved.
|
---|
| 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
|
---|
| 3 |
|
---|
| 4 | #include <stdlib.h>
|
---|
| 5 | #include <ctype.h>
|
---|
| 6 |
|
---|
| 7 | #include "azure_c_shared_utility/optimize_size.h"
|
---|
| 8 | #include "azure_c_shared_utility/gballoc.h"
|
---|
| 9 | #include "azure_c_shared_utility/xlogging.h"
|
---|
| 10 | #include "azure_c_shared_utility/strings.h"
|
---|
| 11 | #include "azure_c_shared_utility/doublylinkedlist.h"
|
---|
| 12 | #include "azure_c_shared_utility/crt_abstractions.h"
|
---|
| 13 | #include "azure_c_shared_utility/agenttime.h"
|
---|
| 14 | #include "azure_c_shared_utility/threadapi.h"
|
---|
| 15 | #include "azure_c_shared_utility/sastoken.h"
|
---|
| 16 | #include "azure_c_shared_utility/tickcounter.h"
|
---|
| 17 | #include "azure_c_shared_utility/tlsio.h"
|
---|
| 18 | #include "azure_c_shared_utility/platform.h"
|
---|
| 19 | #include "azure_c_shared_utility/string_tokenizer.h"
|
---|
| 20 | #include "azure_c_shared_utility/shared_util_options.h"
|
---|
| 21 | #include "azure_c_shared_utility/urlencode.h"
|
---|
| 22 |
|
---|
| 23 | #include "internal/iothub_client_private.h"
|
---|
| 24 | #include "internal/iothub_client_retry_control.h"
|
---|
| 25 | #include "internal/iothub_transport_ll_private.h"
|
---|
| 26 | #include "internal/iothubtransport_mqtt_common.h"
|
---|
| 27 | #include "internal/iothubtransport.h"
|
---|
| 28 |
|
---|
| 29 | #include "azure_umqtt_c/mqtt_client.h"
|
---|
| 30 |
|
---|
| 31 | #include "iothub_client_options.h"
|
---|
| 32 | #include "iothub_client_version.h"
|
---|
| 33 |
|
---|
| 34 | #include <stdarg.h>
|
---|
| 35 | #include <stdio.h>
|
---|
| 36 |
|
---|
| 37 | #include <limits.h>
|
---|
| 38 | #include <inttypes.h>
|
---|
| 39 |
|
---|
| 40 | #define SAS_REFRESH_MULTIPLIER .8
|
---|
| 41 | #define EPOCH_TIME_T_VALUE 0
|
---|
| 42 | #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
|
---|
| 43 | #define DEFAULT_CONNACK_TIMEOUT 30 // 30 seconds
|
---|
| 44 | #define BUILD_CONFIG_USERNAME 24
|
---|
| 45 | #define SAS_TOKEN_DEFAULT_LEN 10
|
---|
| 46 | #define RESEND_TIMEOUT_VALUE_MIN 1*60
|
---|
| 47 | #define MAX_SEND_RECOUNT_LIMIT 2
|
---|
| 48 | #define DEFAULT_CONNECTION_INTERVAL 30
|
---|
| 49 | #define FAILED_CONN_BACKOFF_VALUE 5
|
---|
| 50 | #define STATUS_CODE_FAILURE_VALUE 500
|
---|
| 51 | #define STATUS_CODE_TIMEOUT_VALUE 408
|
---|
| 52 |
|
---|
| 53 | #define DEFAULT_RETRY_POLICY IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER
|
---|
| 54 | #define DEFAULT_RETRY_TIMEOUT_IN_SECONDS 0
|
---|
| 55 | #define MAX_DISCONNECT_VALUE 50
|
---|
| 56 |
|
---|
| 57 | #define ON_DEMAND_GET_TWIN_REQUEST_TIMEOUT_SECS 60
|
---|
| 58 |
|
---|
| 59 | static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
|
---|
| 60 | static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
|
---|
| 61 |
|
---|
| 62 | static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
|
---|
| 63 | static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
|
---|
| 64 |
|
---|
| 65 | static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
|
---|
| 66 | static const char* TOPIC_DEVICE_MODULE_MSG = "devices/%s/modules/%s/messages/devicebound/#";
|
---|
| 67 | static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
|
---|
| 68 | static const char* TOPIC_DEVICE_DEVICE_MODULE = "devices/%s/modules/%s/messages/events/";
|
---|
| 69 |
|
---|
| 70 | static const char* TOPIC_INPUT_QUEUE_NAME = "devices/%s/modules/%s/#";
|
---|
| 71 |
|
---|
| 72 | static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
|
---|
| 73 |
|
---|
| 74 | static const char* IOTHUB_API_VERSION = "2017-11-08-preview";
|
---|
| 75 |
|
---|
| 76 | static const char* PROPERTY_SEPARATOR = "&";
|
---|
| 77 | static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
|
---|
| 78 | static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
|
---|
| 79 | static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
|
---|
| 80 |
|
---|
| 81 | static const char* REQUEST_ID_PROPERTY = "?$rid=";
|
---|
| 82 |
|
---|
| 83 | static const char* MESSAGE_ID_PROPERTY = "mid";
|
---|
| 84 | static const char* CORRELATION_ID_PROPERTY = "cid";
|
---|
| 85 | static const char* CONTENT_TYPE_PROPERTY = "ct";
|
---|
| 86 | static const char* CONTENT_ENCODING_PROPERTY = "ce";
|
---|
| 87 | static const char* DIAGNOSTIC_ID_PROPERTY = "diagid";
|
---|
| 88 | static const char* DIAGNOSTIC_CONTEXT_PROPERTY = "diagctx";
|
---|
| 89 | static const char* CONNECTION_DEVICE_ID = "cdid";
|
---|
| 90 | static const char* CONNECTION_MODULE_ID_PROPERTY = "cmid";
|
---|
| 91 |
|
---|
| 92 | static const char* DIAGNOSTIC_CONTEXT_CREATION_TIME_UTC_PROPERTY = "creationtimeutc";
|
---|
| 93 |
|
---|
| 94 | #define TOLOWER(c) (((c>='A') && (c<='Z'))?c-'A'+'a':c)
|
---|
| 95 |
|
---|
| 96 | #define UNSUBSCRIBE_FROM_TOPIC 0x0000
|
---|
| 97 | #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
|
---|
| 98 | #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
|
---|
| 99 | #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
|
---|
| 100 | #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0008
|
---|
| 101 | #define SUBSCRIBE_INPUT_QUEUE_TOPIC 0x0010
|
---|
| 102 | #define SUBSCRIBE_TOPIC_COUNT 5
|
---|
| 103 |
|
---|
| 104 | MU_DEFINE_ENUM_STRINGS(MQTT_CLIENT_EVENT_ERROR, MQTT_CLIENT_EVENT_ERROR_VALUES)
|
---|
| 105 |
|
---|
| 106 | typedef struct SYSTEM_PROPERTY_INFO_TAG
|
---|
| 107 | {
|
---|
| 108 | const char* propName;
|
---|
| 109 | size_t propLength;
|
---|
| 110 | } SYSTEM_PROPERTY_INFO;
|
---|
| 111 |
|
---|
| 112 | static SYSTEM_PROPERTY_INFO sysPropList[] = {
|
---|
| 113 | { "%24.exp", 7 },
|
---|
| 114 | { "%24.mid", 7 },
|
---|
| 115 | { "%24.uid", 7 },
|
---|
| 116 | { "%24.to", 6 },
|
---|
| 117 | { "%24.cid", 7 },
|
---|
| 118 | { "%24.ct", 6 },
|
---|
| 119 | { "%24.ce", 6 },
|
---|
| 120 | { "devices/", 8 },
|
---|
| 121 | { "iothub-operation", 16 },
|
---|
| 122 | { "iothub-ack", 10 },
|
---|
| 123 | { "%24.on", 6 },
|
---|
| 124 | { "%24.cdid", 8 },
|
---|
| 125 | { "%24.cmid", 8 }
|
---|
| 126 | };
|
---|
| 127 |
|
---|
| 128 | static const int slashes_to_reach_input_name = 5;
|
---|
| 129 |
|
---|
| 130 | typedef enum DEVICE_TWIN_MSG_TYPE_TAG
|
---|
| 131 | {
|
---|
| 132 | REPORTED_STATE,
|
---|
| 133 | RETRIEVE_PROPERTIES
|
---|
| 134 | } DEVICE_TWIN_MSG_TYPE;
|
---|
| 135 |
|
---|
| 136 | typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
|
---|
| 137 | {
|
---|
| 138 | CREDENTIAL_NOT_BUILD,
|
---|
| 139 | X509,
|
---|
| 140 | SAS_TOKEN_FROM_USER,
|
---|
| 141 | DEVICE_KEY,
|
---|
| 142 | } MQTT_TRANSPORT_CREDENTIAL_TYPE;
|
---|
| 143 |
|
---|
| 144 | typedef enum MQTT_CLIENT_STATUS_TAG
|
---|
| 145 | {
|
---|
| 146 | MQTT_CLIENT_STATUS_NOT_CONNECTED,
|
---|
| 147 | MQTT_CLIENT_STATUS_CONNECTING,
|
---|
| 148 | MQTT_CLIENT_STATUS_CONNECTED,
|
---|
| 149 | MQTT_CLIENT_STATUS_PENDING_CLOSE,
|
---|
| 150 | MQTT_CLIENT_STATUS_EXECUTE_DISCONNECT
|
---|
| 151 | } MQTT_CLIENT_STATUS;
|
---|
| 152 |
|
---|
| 153 | typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
|
---|
| 154 | {
|
---|
| 155 | // Topic control
|
---|
| 156 | STRING_HANDLE topic_MqttEvent;
|
---|
| 157 | STRING_HANDLE topic_MqttMessage;
|
---|
| 158 | STRING_HANDLE topic_GetState;
|
---|
| 159 | STRING_HANDLE topic_NotifyState;
|
---|
| 160 | STRING_HANDLE topic_InputQueue;
|
---|
| 161 |
|
---|
| 162 | STRING_HANDLE topic_DeviceMethods;
|
---|
| 163 |
|
---|
| 164 | uint32_t topics_ToSubscribe;
|
---|
| 165 |
|
---|
| 166 | // Connection related constants
|
---|
| 167 | STRING_HANDLE hostAddress;
|
---|
| 168 | STRING_HANDLE device_id;
|
---|
| 169 | STRING_HANDLE module_id;
|
---|
| 170 | STRING_HANDLE devicesAndModulesPath;
|
---|
| 171 | int portNum;
|
---|
| 172 | bool conn_attempted;
|
---|
| 173 |
|
---|
| 174 | MQTT_GET_IO_TRANSPORT get_io_transport;
|
---|
| 175 |
|
---|
| 176 | // The current mqtt iothub implementation requires that the hub name and the domain suffix be passed as the first of a series of segments
|
---|
| 177 | // passed through the username portion of the connection frame.
|
---|
| 178 | // The second segment will contain the device id. The two segments are delemited by a "/".
|
---|
| 179 | // The first segment can be a maximum 256 characters.
|
---|
| 180 | // The second segment can be a maximum 128 characters.
|
---|
| 181 | // With the / delimeter you have 384 chars (Plus a terminator of 0).
|
---|
| 182 | STRING_HANDLE configPassedThroughUsername;
|
---|
| 183 |
|
---|
| 184 | // Protocol
|
---|
| 185 | MQTT_CLIENT_HANDLE mqttClient;
|
---|
| 186 | XIO_HANDLE xioTransport;
|
---|
| 187 |
|
---|
| 188 | // Session - connection
|
---|
| 189 | uint16_t packetId;
|
---|
| 190 | uint16_t twin_resp_packet_id;
|
---|
| 191 |
|
---|
| 192 | // Connection state control
|
---|
| 193 | bool isRegistered;
|
---|
| 194 | MQTT_CLIENT_STATUS mqttClientStatus;
|
---|
| 195 | bool isDestroyCalled;
|
---|
| 196 | bool isRetryExpiredCallbackSet;
|
---|
| 197 | bool device_twin_get_sent;
|
---|
| 198 | bool twin_resp_sub_recv;
|
---|
| 199 | bool isRecoverableError;
|
---|
| 200 | uint16_t keepAliveValue;
|
---|
| 201 | uint16_t connect_timeout_in_sec;
|
---|
| 202 | tickcounter_ms_t mqtt_connect_time;
|
---|
| 203 | size_t connectFailCount;
|
---|
| 204 | tickcounter_ms_t connectTick;
|
---|
| 205 | bool log_trace;
|
---|
| 206 | bool raw_trace;
|
---|
| 207 | TICK_COUNTER_HANDLE msgTickCounter;
|
---|
| 208 | OPTIONHANDLER_HANDLE saved_tls_options; // Here are the options from the xio layer if any is saved.
|
---|
| 209 |
|
---|
| 210 | // Internal lists for message tracking
|
---|
| 211 | PDLIST_ENTRY waitingToSend;
|
---|
| 212 | DLIST_ENTRY ack_waiting_queue;
|
---|
| 213 |
|
---|
| 214 | DLIST_ENTRY pending_get_twin_queue;
|
---|
| 215 |
|
---|
| 216 | // Message tracking
|
---|
| 217 | CONTROL_PACKET_TYPE currPacketState;
|
---|
| 218 |
|
---|
| 219 | // Telemetry specific
|
---|
| 220 | DLIST_ENTRY telemetry_waitingForAck;
|
---|
| 221 | bool auto_url_encode_decode;
|
---|
| 222 |
|
---|
| 223 | // Controls frequency of reconnection logic.
|
---|
| 224 | RETRY_CONTROL_HANDLE retry_control_handle;
|
---|
| 225 |
|
---|
| 226 | // Auth module used to generating handle authorization
|
---|
| 227 | // with either SAS Token, x509 Certs, and Device SAS Token
|
---|
| 228 | IOTHUB_AUTHORIZATION_HANDLE authorization_module;
|
---|
| 229 |
|
---|
| 230 | TRANSPORT_CALLBACKS_INFO transport_callbacks;
|
---|
| 231 | void* transport_ctx;
|
---|
| 232 |
|
---|
| 233 | char* http_proxy_hostname;
|
---|
| 234 | int http_proxy_port;
|
---|
| 235 | char* http_proxy_username;
|
---|
| 236 | char* http_proxy_password;
|
---|
| 237 | bool isProductInfoSet;
|
---|
| 238 | int disconnect_recv_flag;
|
---|
| 239 | } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
|
---|
| 240 |
|
---|
| 241 | typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
|
---|
| 242 | {
|
---|
| 243 | tickcounter_ms_t msgEnqueueTime;
|
---|
| 244 | tickcounter_ms_t msgPublishTime;
|
---|
| 245 | size_t retryCount;
|
---|
| 246 | IOTHUB_IDENTITY_TYPE iothub_type;
|
---|
| 247 | uint16_t packet_id;
|
---|
| 248 | uint32_t iothub_msg_id;
|
---|
| 249 | IOTHUB_DEVICE_TWIN* device_twin_data;
|
---|
| 250 | DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
|
---|
| 251 | DLIST_ENTRY entry;
|
---|
| 252 | IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK userCallback;
|
---|
| 253 | void* userContext;
|
---|
| 254 | } MQTT_DEVICE_TWIN_ITEM;
|
---|
| 255 |
|
---|
| 256 | typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
|
---|
| 257 | {
|
---|
| 258 | tickcounter_ms_t msgPublishTime;
|
---|
| 259 | size_t retryCount;
|
---|
| 260 | IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
|
---|
| 261 | void* context;
|
---|
| 262 | uint16_t packet_id;
|
---|
| 263 | DLIST_ENTRY entry;
|
---|
| 264 | } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
|
---|
| 265 |
|
---|
| 266 | typedef struct DEVICE_METHOD_INFO_TAG
|
---|
| 267 | {
|
---|
| 268 | STRING_HANDLE request_id;
|
---|
| 269 | } DEVICE_METHOD_INFO;
|
---|
| 270 |
|
---|
| 271 | static void free_proxy_data(MQTTTRANSPORT_HANDLE_DATA* mqtt_transport_instance)
|
---|
| 272 | {
|
---|
| 273 | if (mqtt_transport_instance->http_proxy_hostname != NULL)
|
---|
| 274 | {
|
---|
| 275 | free(mqtt_transport_instance->http_proxy_hostname);
|
---|
| 276 | mqtt_transport_instance->http_proxy_hostname = NULL;
|
---|
| 277 | }
|
---|
| 278 |
|
---|
| 279 | if (mqtt_transport_instance->http_proxy_username != NULL)
|
---|
| 280 | {
|
---|
| 281 | free(mqtt_transport_instance->http_proxy_username);
|
---|
| 282 | mqtt_transport_instance->http_proxy_username = NULL;
|
---|
| 283 | }
|
---|
| 284 |
|
---|
| 285 | if (mqtt_transport_instance->http_proxy_password != NULL)
|
---|
| 286 | {
|
---|
| 287 | free(mqtt_transport_instance->http_proxy_password);
|
---|
| 288 | mqtt_transport_instance->http_proxy_password = NULL;
|
---|
| 289 | }
|
---|
| 290 | }
|
---|
| 291 |
|
---|
| 292 | static void set_saved_tls_options(PMQTTTRANSPORT_HANDLE_DATA transport, OPTIONHANDLER_HANDLE new_options)
|
---|
| 293 | {
|
---|
| 294 | if (transport->saved_tls_options != NULL)
|
---|
| 295 | {
|
---|
| 296 | OptionHandler_Destroy(transport->saved_tls_options);
|
---|
| 297 | }
|
---|
| 298 | transport->saved_tls_options = new_options;
|
---|
| 299 | }
|
---|
| 300 |
|
---|
| 301 | static void free_transport_handle_data(MQTTTRANSPORT_HANDLE_DATA* transport_data)
|
---|
| 302 | {
|
---|
| 303 | if (transport_data->mqttClient != NULL)
|
---|
| 304 | {
|
---|
| 305 | mqtt_client_deinit(transport_data->mqttClient);
|
---|
| 306 | }
|
---|
| 307 |
|
---|
| 308 | if (transport_data->retry_control_handle != NULL)
|
---|
| 309 | {
|
---|
| 310 | retry_control_destroy(transport_data->retry_control_handle);
|
---|
| 311 | }
|
---|
| 312 |
|
---|
| 313 | set_saved_tls_options(transport_data, NULL);
|
---|
| 314 |
|
---|
| 315 | tickcounter_destroy(transport_data->msgTickCounter);
|
---|
| 316 |
|
---|
| 317 | free_proxy_data(transport_data);
|
---|
| 318 |
|
---|
| 319 | STRING_delete(transport_data->devicesAndModulesPath);
|
---|
| 320 | STRING_delete(transport_data->topic_MqttEvent);
|
---|
| 321 | STRING_delete(transport_data->topic_MqttMessage);
|
---|
| 322 | STRING_delete(transport_data->device_id);
|
---|
| 323 | STRING_delete(transport_data->module_id);
|
---|
| 324 | STRING_delete(transport_data->hostAddress);
|
---|
| 325 | STRING_delete(transport_data->configPassedThroughUsername);
|
---|
| 326 | STRING_delete(transport_data->topic_GetState);
|
---|
| 327 | STRING_delete(transport_data->topic_NotifyState);
|
---|
| 328 | STRING_delete(transport_data->topic_DeviceMethods);
|
---|
| 329 | STRING_delete(transport_data->topic_InputQueue);
|
---|
| 330 |
|
---|
| 331 | free(transport_data);
|
---|
| 332 | }
|
---|
| 333 |
|
---|
| 334 | int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
|
---|
| 335 | {
|
---|
| 336 | int result;
|
---|
| 337 |
|
---|
| 338 | if (handle == NULL)
|
---|
| 339 | {
|
---|
| 340 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_041: [**If any handle is NULL then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return resultant line.] */
|
---|
| 341 | LogError("Invalid handle parameter. NULL.");
|
---|
| 342 | result = MU_FAILURE;
|
---|
| 343 | }
|
---|
| 344 | else
|
---|
| 345 | {
|
---|
| 346 | RETRY_CONTROL_HANDLE new_retry_control_handle;
|
---|
| 347 |
|
---|
| 348 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_006: [ IoTHubTransport_MQTT_Common_SetRetryPolicy shall set the retry logic by calling retry_control_create() with retry policy and retryTimeout as parameters]
|
---|
| 349 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_009: [ If retry_control_create() fails then IoTHubTransport_MQTT_Common_SetRetryPolicy shall revert to previous retry policy and return non-zero value ]
|
---|
| 350 | if ((new_retry_control_handle = retry_control_create(retryPolicy, (unsigned int)retryTimeoutLimitInSeconds)) == NULL)
|
---|
| 351 | {
|
---|
| 352 | LogError("Failed creating new retry control handle");
|
---|
| 353 | result = MU_FAILURE;
|
---|
| 354 | }
|
---|
| 355 | else
|
---|
| 356 | {
|
---|
| 357 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 358 | RETRY_CONTROL_HANDLE previous_retry_control_handle = transport_data->retry_control_handle;
|
---|
| 359 |
|
---|
| 360 | transport_data->retry_control_handle = new_retry_control_handle;
|
---|
| 361 | retry_control_destroy(previous_retry_control_handle);
|
---|
| 362 |
|
---|
| 363 | /*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]*/
|
---|
| 364 | result = 0;
|
---|
| 365 | }
|
---|
| 366 | }
|
---|
| 367 |
|
---|
| 368 | return result;
|
---|
| 369 | }
|
---|
| 370 |
|
---|
| 371 | static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 372 | {
|
---|
| 373 | if (transport_data->packetId + 1 >= USHRT_MAX)
|
---|
| 374 | {
|
---|
| 375 | transport_data->packetId = 1;
|
---|
| 376 | }
|
---|
| 377 | else
|
---|
| 378 | {
|
---|
| 379 | transport_data->packetId++;
|
---|
| 380 | }
|
---|
| 381 | return transport_data->packetId;
|
---|
| 382 | }
|
---|
| 383 |
|
---|
| 384 | #ifndef NO_LOGGING
|
---|
| 385 | static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
|
---|
| 386 | {
|
---|
| 387 | switch (rtn_code)
|
---|
| 388 | {
|
---|
| 389 | case CONNECTION_ACCEPTED:
|
---|
| 390 | return "Accepted";
|
---|
| 391 | case CONN_REFUSED_UNACCEPTABLE_VERSION:
|
---|
| 392 | return "Unacceptable Version";
|
---|
| 393 | case CONN_REFUSED_ID_REJECTED:
|
---|
| 394 | return "Id Rejected";
|
---|
| 395 | case CONN_REFUSED_SERVER_UNAVAIL:
|
---|
| 396 | return "Server Unavailable";
|
---|
| 397 | case CONN_REFUSED_BAD_USERNAME_PASSWORD:
|
---|
| 398 | return "Bad Username/Password";
|
---|
| 399 | case CONN_REFUSED_NOT_AUTHORIZED:
|
---|
| 400 | return "Not Authorized";
|
---|
| 401 | case CONN_REFUSED_UNKNOWN:
|
---|
| 402 | default:
|
---|
| 403 | return "Unknown";
|
---|
| 404 | }
|
---|
| 405 | }
|
---|
| 406 | #endif // NO_LOGGING
|
---|
| 407 |
|
---|
| 408 | static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
|
---|
| 409 | {
|
---|
| 410 | int result;
|
---|
| 411 | STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
|
---|
| 412 | if (token_handle == NULL)
|
---|
| 413 | {
|
---|
| 414 | LogError("Failed creating token from device twin topic.");
|
---|
| 415 | result = MU_FAILURE;
|
---|
| 416 | }
|
---|
| 417 | else
|
---|
| 418 | {
|
---|
| 419 | STRING_HANDLE token_value;
|
---|
| 420 | if ((token_value = STRING_new()) == NULL)
|
---|
| 421 | {
|
---|
| 422 | LogError("Failed allocating new string .");
|
---|
| 423 | result = MU_FAILURE;
|
---|
| 424 | }
|
---|
| 425 | else
|
---|
| 426 | {
|
---|
| 427 | size_t token_index = 0;
|
---|
| 428 | size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
|
---|
| 429 | result = MU_FAILURE;
|
---|
| 430 | while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
|
---|
| 431 | {
|
---|
| 432 | if (token_index == 3)
|
---|
| 433 | {
|
---|
| 434 | if (STRING_concat_with_STRING(method_name, token_value) != 0)
|
---|
| 435 | {
|
---|
| 436 | LogError("Failed STRING_concat_with_STRING.");
|
---|
| 437 | result = MU_FAILURE;
|
---|
| 438 | break;
|
---|
| 439 | }
|
---|
| 440 | }
|
---|
| 441 | else if (token_index == 4)
|
---|
| 442 | {
|
---|
| 443 | if (STRING_length(token_value) >= request_id_length)
|
---|
| 444 | {
|
---|
| 445 | const char* request_id_value = STRING_c_str(token_value);
|
---|
| 446 | if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
|
---|
| 447 | {
|
---|
| 448 | if (STRING_concat(request_id, request_id_value + request_id_length) != 0)
|
---|
| 449 | {
|
---|
| 450 | LogError("Failed STRING_concat failed.");
|
---|
| 451 | result = MU_FAILURE;
|
---|
| 452 | }
|
---|
| 453 | else
|
---|
| 454 | {
|
---|
| 455 | result = 0;
|
---|
| 456 | }
|
---|
| 457 | break;
|
---|
| 458 | }
|
---|
| 459 | }
|
---|
| 460 | }
|
---|
| 461 | token_index++;
|
---|
| 462 | }
|
---|
| 463 | STRING_delete(token_value);
|
---|
| 464 | }
|
---|
| 465 | STRING_TOKENIZER_destroy(token_handle);
|
---|
| 466 | }
|
---|
| 467 | return result;
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
|
---|
| 471 | {
|
---|
| 472 | int result;
|
---|
| 473 | STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
|
---|
| 474 | if (token_handle == NULL)
|
---|
| 475 | {
|
---|
| 476 | LogError("Failed creating token from device twin topic.");
|
---|
| 477 | result = MU_FAILURE;
|
---|
| 478 | *status_code = 0;
|
---|
| 479 | *request_id = 0;
|
---|
| 480 | *patch_msg = false;
|
---|
| 481 | }
|
---|
| 482 | else
|
---|
| 483 | {
|
---|
| 484 | STRING_HANDLE token_value;
|
---|
| 485 | if ((token_value = STRING_new()) == NULL)
|
---|
| 486 | {
|
---|
| 487 | LogError("Failed allocating new string .");
|
---|
| 488 | result = MU_FAILURE;
|
---|
| 489 | *status_code = 0;
|
---|
| 490 | *request_id = 0;
|
---|
| 491 | *patch_msg = false;
|
---|
| 492 | }
|
---|
| 493 | else
|
---|
| 494 | {
|
---|
| 495 | result = MU_FAILURE;
|
---|
| 496 | size_t token_count = 0;
|
---|
| 497 | while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
|
---|
| 498 | {
|
---|
| 499 | if (token_count == 2)
|
---|
| 500 | {
|
---|
| 501 | if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
|
---|
| 502 | {
|
---|
| 503 | *patch_msg = true;
|
---|
| 504 | *status_code = 0;
|
---|
| 505 | *request_id = 0;
|
---|
| 506 | result = 0;
|
---|
| 507 | break;
|
---|
| 508 | }
|
---|
| 509 | else
|
---|
| 510 | {
|
---|
| 511 | *patch_msg = false;
|
---|
| 512 | }
|
---|
| 513 | }
|
---|
| 514 | else if (token_count == 3)
|
---|
| 515 | {
|
---|
| 516 | *status_code = (int)atol(STRING_c_str(token_value));
|
---|
| 517 | if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
|
---|
| 518 | {
|
---|
| 519 | *request_id = (size_t)atol(STRING_c_str(token_value));
|
---|
| 520 | }
|
---|
| 521 | *patch_msg = false;
|
---|
| 522 | result = 0;
|
---|
| 523 | break;
|
---|
| 524 | }
|
---|
| 525 | token_count++;
|
---|
| 526 | }
|
---|
| 527 | STRING_delete(token_value);
|
---|
| 528 | }
|
---|
| 529 | STRING_TOKENIZER_destroy(token_handle);
|
---|
| 530 | }
|
---|
| 531 | return result;
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 | static int InternStrnicmp(const char* s1, const char* s2, size_t n)
|
---|
| 535 | {
|
---|
| 536 | int result;
|
---|
| 537 |
|
---|
| 538 | if (s1 == NULL) result = -1;
|
---|
| 539 | else if (s2 == NULL) result = 1;
|
---|
| 540 | else
|
---|
| 541 | {
|
---|
| 542 | result = 0;
|
---|
| 543 |
|
---|
| 544 | while (n-- && result == 0)
|
---|
| 545 | {
|
---|
| 546 | if (*s1 == 0) result = -1;
|
---|
| 547 | else if (*s2 == 0) result = 1;
|
---|
| 548 | else
|
---|
| 549 | {
|
---|
| 550 |
|
---|
| 551 | result = TOLOWER(*s1) - TOLOWER(*s2);
|
---|
| 552 | ++s1;
|
---|
| 553 | ++s2;
|
---|
| 554 | }
|
---|
| 555 | }
|
---|
| 556 | }
|
---|
| 557 | return result;
|
---|
| 558 | }
|
---|
| 559 |
|
---|
| 560 | static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp, const char* input_queue)
|
---|
| 561 | {
|
---|
| 562 | IOTHUB_IDENTITY_TYPE type;
|
---|
| 563 | if (InternStrnicmp(topic_resp, TOPIC_DEVICE_TWIN_PREFIX, sizeof(TOPIC_DEVICE_TWIN_PREFIX) - 1) == 0)
|
---|
| 564 | {
|
---|
| 565 | type = IOTHUB_TYPE_DEVICE_TWIN;
|
---|
| 566 | }
|
---|
| 567 | else if (InternStrnicmp(topic_resp, TOPIC_DEVICE_METHOD_PREFIX, sizeof(TOPIC_DEVICE_METHOD_PREFIX) - 1) == 0)
|
---|
| 568 | {
|
---|
| 569 | type = IOTHUB_TYPE_DEVICE_METHODS;
|
---|
| 570 | }
|
---|
| 571 | // input_queue contains additional "#" from subscribe, which we strip off on comparing incoming.
|
---|
| 572 | else if ((input_queue != NULL) && InternStrnicmp(topic_resp, input_queue, strlen(input_queue) - 1) == 0)
|
---|
| 573 | {
|
---|
| 574 | type = IOTHUB_TYPE_EVENT_QUEUE;
|
---|
| 575 | }
|
---|
| 576 | else
|
---|
| 577 | {
|
---|
| 578 | type = IOTHUB_TYPE_TELEMETRY;
|
---|
| 579 | }
|
---|
| 580 | return type;
|
---|
| 581 |
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
|
---|
| 585 | {
|
---|
| 586 | DLIST_ENTRY messageCompleted;
|
---|
| 587 | DList_InitializeListHead(&messageCompleted);
|
---|
| 588 | DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
|
---|
| 589 | transport_data->transport_callbacks.send_complete_cb(&messageCompleted, confirmResult, transport_data->transport_ctx);
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | static int addUserPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, STRING_HANDLE topic_string, size_t* index_ptr, bool urlencode)
|
---|
| 593 | {
|
---|
| 594 | int result = 0;
|
---|
| 595 | const char* const* propertyKeys;
|
---|
| 596 | const char* const* propertyValues;
|
---|
| 597 | size_t propertyCount;
|
---|
| 598 | size_t index = *index_ptr;
|
---|
| 599 | MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
|
---|
| 600 | if (properties_map != NULL)
|
---|
| 601 | {
|
---|
| 602 | if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
|
---|
| 603 | {
|
---|
| 604 | LogError("Failed to get the internals of the property map.");
|
---|
| 605 | result = MU_FAILURE;
|
---|
| 606 | }
|
---|
| 607 | else
|
---|
| 608 | {
|
---|
| 609 | if (propertyCount != 0)
|
---|
| 610 | {
|
---|
| 611 | for (index = 0; index < propertyCount && result == 0; index++)
|
---|
| 612 | {
|
---|
| 613 | if (urlencode)
|
---|
| 614 | {
|
---|
| 615 | STRING_HANDLE property_key = URL_EncodeString(propertyKeys[index]);
|
---|
| 616 | STRING_HANDLE property_value = URL_EncodeString(propertyValues[index]);
|
---|
| 617 | if ((property_key == NULL) || (property_value == NULL))
|
---|
| 618 | {
|
---|
| 619 | LogError("Failed URL Encoding properties");
|
---|
| 620 | result = MU_FAILURE;
|
---|
| 621 | }
|
---|
| 622 | else if (STRING_sprintf(topic_string, "%s=%s%s", STRING_c_str(property_key), STRING_c_str(property_value), propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
|
---|
| 623 | {
|
---|
| 624 | LogError("Failed constructing property string.");
|
---|
| 625 | result = MU_FAILURE;
|
---|
| 626 | }
|
---|
| 627 | STRING_delete(property_key);
|
---|
| 628 | STRING_delete(property_value);
|
---|
| 629 | }
|
---|
| 630 | else
|
---|
| 631 | {
|
---|
| 632 | if (STRING_sprintf(topic_string, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
|
---|
| 633 | {
|
---|
| 634 | LogError("Failed constructing property string.");
|
---|
| 635 | result = MU_FAILURE;
|
---|
| 636 | }
|
---|
| 637 | }
|
---|
| 638 | }
|
---|
| 639 | }
|
---|
| 640 | }
|
---|
| 641 | }
|
---|
| 642 | *index_ptr = index;
|
---|
| 643 | return result;
|
---|
| 644 | }
|
---|
| 645 |
|
---|
| 646 | static int addSystemPropertyToTopicString(STRING_HANDLE topic_string, size_t index, const char* property_key, const char* property_value, bool urlencode)
|
---|
| 647 | {
|
---|
| 648 | int result = 0;
|
---|
| 649 |
|
---|
| 650 | if (urlencode)
|
---|
| 651 | {
|
---|
| 652 | STRING_HANDLE encoded_property_value = URL_EncodeString(property_value);
|
---|
| 653 | if (encoded_property_value == NULL)
|
---|
| 654 | {
|
---|
| 655 | LogError("Failed URL encoding %s.", property_key);
|
---|
| 656 | result = MU_FAILURE;
|
---|
| 657 | }
|
---|
| 658 | else if (STRING_sprintf(topic_string, "%s%%24.%s=%s", index == 0 ? "" : PROPERTY_SEPARATOR, property_key, STRING_c_str(encoded_property_value)) != 0)
|
---|
| 659 | {
|
---|
| 660 | LogError("Failed setting %s.", property_key);
|
---|
| 661 | result = MU_FAILURE;
|
---|
| 662 | }
|
---|
| 663 | STRING_delete(encoded_property_value);
|
---|
| 664 | }
|
---|
| 665 | else
|
---|
| 666 | {
|
---|
| 667 | if (STRING_sprintf(topic_string, "%s%%24.%s=%s", index == 0 ? "" : PROPERTY_SEPARATOR, property_key, property_value) != 0)
|
---|
| 668 | {
|
---|
| 669 | LogError("Failed setting %s.", property_key);
|
---|
| 670 | result = MU_FAILURE;
|
---|
| 671 | }
|
---|
| 672 | }
|
---|
| 673 | return result;
|
---|
| 674 | }
|
---|
| 675 |
|
---|
| 676 | static int addSystemPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, STRING_HANDLE topic_string, size_t* index_ptr, bool urlencode)
|
---|
| 677 | {
|
---|
| 678 | (void)urlencode;
|
---|
| 679 | int result = 0;
|
---|
| 680 | size_t index = *index_ptr;
|
---|
| 681 |
|
---|
| 682 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_052: [ IoTHubTransport_MQTT_Common_DoWork shall check for the CorrelationId property and if found add the value as a system property in the format of $.cid=<id> ] */
|
---|
| 683 | const char* correlation_id = IoTHubMessage_GetCorrelationId(iothub_message_handle);
|
---|
| 684 | if (correlation_id != NULL)
|
---|
| 685 | {
|
---|
| 686 | result = addSystemPropertyToTopicString(topic_string, index, CORRELATION_ID_PROPERTY, correlation_id, urlencode);
|
---|
| 687 | index++;
|
---|
| 688 | }
|
---|
| 689 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_053: [ IoTHubTransport_MQTT_Common_DoWork shall check for the MessageId property and if found add the value as a system property in the format of $.mid=<id> ] */
|
---|
| 690 | if (result == 0)
|
---|
| 691 | {
|
---|
| 692 | const char* msg_id = IoTHubMessage_GetMessageId(iothub_message_handle);
|
---|
| 693 | if (msg_id != NULL)
|
---|
| 694 | {
|
---|
| 695 | result = addSystemPropertyToTopicString(topic_string, index, MESSAGE_ID_PROPERTY, msg_id, urlencode);
|
---|
| 696 | index++;
|
---|
| 697 | }
|
---|
| 698 | }
|
---|
| 699 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_010: [ `IoTHubTransport_MQTT_Common_DoWork` shall check for the ContentType property and if found add the `value` as a system property in the format of `$.ct=<value>` ]
|
---|
| 700 | if (result == 0)
|
---|
| 701 | {
|
---|
| 702 | const char* content_type = IoTHubMessage_GetContentTypeSystemProperty(iothub_message_handle);
|
---|
| 703 | if (content_type != NULL)
|
---|
| 704 | {
|
---|
| 705 | result = addSystemPropertyToTopicString(topic_string, index, CONTENT_TYPE_PROPERTY, content_type, urlencode);
|
---|
| 706 | index++;
|
---|
| 707 | }
|
---|
| 708 | }
|
---|
| 709 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_011: [ `IoTHubTransport_MQTT_Common_DoWork` shall check for the ContentEncoding property and if found add the `value` as a system property in the format of `$.ce=<value>` ]
|
---|
| 710 | if (result == 0)
|
---|
| 711 | {
|
---|
| 712 | const char* content_encoding = IoTHubMessage_GetContentEncodingSystemProperty(iothub_message_handle);
|
---|
| 713 | if (content_encoding != NULL)
|
---|
| 714 | {
|
---|
| 715 | result = addSystemPropertyToTopicString(topic_string, index, CONTENT_ENCODING_PROPERTY, content_encoding, urlencode);
|
---|
| 716 | index++;
|
---|
| 717 | }
|
---|
| 718 | }
|
---|
| 719 | *index_ptr = index;
|
---|
| 720 | return result;
|
---|
| 721 | }
|
---|
| 722 |
|
---|
| 723 | static int addDiagnosticPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, STRING_HANDLE topic_string, size_t* index_ptr)
|
---|
| 724 | {
|
---|
| 725 | int result = 0;
|
---|
| 726 | size_t index = *index_ptr;
|
---|
| 727 |
|
---|
| 728 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_014: [ `IoTHubTransport_MQTT_Common_DoWork` shall check for the diagnostic properties including diagid and diagCreationTimeUtc and if found both add them as system property in the format of `$.diagid` and `$.diagctx` respectively]
|
---|
| 729 | const IOTHUB_MESSAGE_DIAGNOSTIC_PROPERTY_DATA* diagnosticData = IoTHubMessage_GetDiagnosticPropertyData(iothub_message_handle);
|
---|
| 730 | if (diagnosticData != NULL)
|
---|
| 731 | {
|
---|
| 732 | const char* diag_id = diagnosticData->diagnosticId;
|
---|
| 733 | const char* creation_time_utc = diagnosticData->diagnosticCreationTimeUtc;
|
---|
| 734 | //diagid and creationtimeutc must be present/unpresent simultaneously
|
---|
| 735 | if (diag_id != NULL && creation_time_utc != NULL)
|
---|
| 736 | {
|
---|
| 737 | if (STRING_sprintf(topic_string, "%s%%24.%s=%s", index == 0 ? "" : PROPERTY_SEPARATOR, DIAGNOSTIC_ID_PROPERTY, diag_id) != 0)
|
---|
| 738 | {
|
---|
| 739 | LogError("Failed setting diagnostic id");
|
---|
| 740 | result = MU_FAILURE;
|
---|
| 741 | }
|
---|
| 742 | index++;
|
---|
| 743 |
|
---|
| 744 | if (result == 0)
|
---|
| 745 | {
|
---|
| 746 | //construct diagnostic context, it should be urlencode(key1=value1,key2=value2)
|
---|
| 747 | STRING_HANDLE diagContextHandle = STRING_construct_sprintf("%s=%s", DIAGNOSTIC_CONTEXT_CREATION_TIME_UTC_PROPERTY, creation_time_utc);
|
---|
| 748 | if (diagContextHandle == NULL)
|
---|
| 749 | {
|
---|
| 750 | LogError("Failed constructing diagnostic context");
|
---|
| 751 | result = MU_FAILURE;
|
---|
| 752 | }
|
---|
| 753 | else
|
---|
| 754 | {
|
---|
| 755 | //Add other diagnostic context properties here if have more
|
---|
| 756 | STRING_HANDLE encodedContextValueHandle = URL_Encode(diagContextHandle);
|
---|
| 757 | const char* encodedContextValueString = NULL;
|
---|
| 758 | if (encodedContextValueHandle != NULL &&
|
---|
| 759 | (encodedContextValueString = STRING_c_str(encodedContextValueHandle)) != NULL)
|
---|
| 760 | {
|
---|
| 761 | if (STRING_sprintf(topic_string, "%s%%24.%s=%s", index == 0 ? "" : PROPERTY_SEPARATOR, DIAGNOSTIC_CONTEXT_PROPERTY, encodedContextValueString) != 0)
|
---|
| 762 | {
|
---|
| 763 | LogError("Failed setting diagnostic context");
|
---|
| 764 | result = MU_FAILURE;
|
---|
| 765 | }
|
---|
| 766 | STRING_delete(encodedContextValueHandle);
|
---|
| 767 | encodedContextValueHandle = NULL;
|
---|
| 768 | }
|
---|
| 769 | else
|
---|
| 770 | {
|
---|
| 771 | LogError("Failed encoding diagnostic context value");
|
---|
| 772 | result = MU_FAILURE;
|
---|
| 773 | }
|
---|
| 774 | STRING_delete(diagContextHandle);
|
---|
| 775 | diagContextHandle = NULL;
|
---|
| 776 | index++;
|
---|
| 777 | }
|
---|
| 778 | }
|
---|
| 779 | }
|
---|
| 780 | else if (diag_id != NULL || creation_time_utc != NULL)
|
---|
| 781 | {
|
---|
| 782 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_015: [ `IoTHubTransport_MQTT_Common_DoWork` shall check whether diagid and diagCreationTimeUtc be present simultaneously, treat as error if not]
|
---|
| 783 | LogError("diagid and diagcreationtimeutc must be present simultaneously.");
|
---|
| 784 | result = MU_FAILURE;
|
---|
| 785 | }
|
---|
| 786 | }
|
---|
| 787 | return result;
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 |
|
---|
| 791 | static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic, bool urlencode)
|
---|
| 792 | {
|
---|
| 793 | size_t index = 0;
|
---|
| 794 | STRING_HANDLE result = STRING_construct(eventTopic);
|
---|
| 795 | if (result == NULL)
|
---|
| 796 | {
|
---|
| 797 | LogError("Failed to create event topic string handle");
|
---|
| 798 | }
|
---|
| 799 | else if (addUserPropertiesTouMqttMessage(iothub_message_handle, result, &index, urlencode) != 0)
|
---|
| 800 | {
|
---|
| 801 | LogError("Failed adding Properties to uMQTT Message");
|
---|
| 802 | STRING_delete(result);
|
---|
| 803 | result = NULL;
|
---|
| 804 | }
|
---|
| 805 | else if (addSystemPropertiesTouMqttMessage(iothub_message_handle, result, &index, urlencode) != 0)
|
---|
| 806 | {
|
---|
| 807 | LogError("Failed adding System Properties to uMQTT Message");
|
---|
| 808 | STRING_delete(result);
|
---|
| 809 | result = NULL;
|
---|
| 810 | }
|
---|
| 811 | else if (addDiagnosticPropertiesTouMqttMessage(iothub_message_handle, result, &index) != 0)
|
---|
| 812 | {
|
---|
| 813 | LogError("Failed adding Diagnostic Properties to uMQTT Message");
|
---|
| 814 | STRING_delete(result);
|
---|
| 815 | result = NULL;
|
---|
| 816 | }
|
---|
| 817 |
|
---|
| 818 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_060: [ `IoTHubTransport_MQTT_Common_DoWork` shall check for the OutputName property and if found add the value as a system property in the format of $.on=<value> ]
|
---|
| 819 | if (result != NULL)
|
---|
| 820 | {
|
---|
| 821 | const char* output_name = IoTHubMessage_GetOutputName(iothub_message_handle);
|
---|
| 822 | if (output_name != NULL)
|
---|
| 823 | {
|
---|
| 824 | if (STRING_sprintf(result, "%s%%24.on=%s/", index == 0 ? "" : PROPERTY_SEPARATOR, output_name) != 0)
|
---|
| 825 | {
|
---|
| 826 | LogError("Failed setting output name.");
|
---|
| 827 | STRING_delete(result);
|
---|
| 828 | result = NULL;
|
---|
| 829 | }
|
---|
| 830 | index++;
|
---|
| 831 | }
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 | return result;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | static int publish_mqtt_telemetry_msg(PMQTTTRANSPORT_HANDLE_DATA transport_data, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
|
---|
| 838 | {
|
---|
| 839 | int result;
|
---|
| 840 | STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent), transport_data->auto_url_encode_decode);
|
---|
| 841 | if (msgTopic == NULL)
|
---|
| 842 | {
|
---|
| 843 | LogError("Failed adding properties to mqtt message");
|
---|
| 844 | result = MU_FAILURE;
|
---|
| 845 | }
|
---|
| 846 | else
|
---|
| 847 | {
|
---|
| 848 | MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create_in_place(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
|
---|
| 849 | if (mqttMsg == NULL)
|
---|
| 850 | {
|
---|
| 851 | LogError("Failed creating mqtt message");
|
---|
| 852 | result = MU_FAILURE;
|
---|
| 853 | }
|
---|
| 854 | else
|
---|
| 855 | {
|
---|
| 856 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
|
---|
| 857 | {
|
---|
| 858 | LogError("Failed retrieving tickcounter info");
|
---|
| 859 | result = MU_FAILURE;
|
---|
| 860 | }
|
---|
| 861 | else
|
---|
| 862 | {
|
---|
| 863 | if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
|
---|
| 864 | {
|
---|
| 865 | LogError("Failed attempting to publish mqtt message");
|
---|
| 866 | result = MU_FAILURE;
|
---|
| 867 | }
|
---|
| 868 | else
|
---|
| 869 | {
|
---|
| 870 | mqttMsgEntry->retryCount++;
|
---|
| 871 | result = 0;
|
---|
| 872 | }
|
---|
| 873 | }
|
---|
| 874 | mqttmessage_destroy(mqttMsg);
|
---|
| 875 | }
|
---|
| 876 | STRING_delete(msgTopic);
|
---|
| 877 | }
|
---|
| 878 | return result;
|
---|
| 879 | }
|
---|
| 880 |
|
---|
| 881 | 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)
|
---|
| 882 | {
|
---|
| 883 | int result;
|
---|
| 884 | uint16_t packet_id = get_next_packet_id(transport_data);
|
---|
| 885 |
|
---|
| 886 | STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id));
|
---|
| 887 | if (msg_topic == NULL)
|
---|
| 888 | {
|
---|
| 889 | LogError("Failed constructing message topic.");
|
---|
| 890 | result = MU_FAILURE;
|
---|
| 891 | }
|
---|
| 892 | else
|
---|
| 893 | {
|
---|
| 894 | MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create_in_place(packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, response, response_size);
|
---|
| 895 | if (mqtt_get_msg == NULL)
|
---|
| 896 | {
|
---|
| 897 | LogError("Failed constructing mqtt message.");
|
---|
| 898 | result = MU_FAILURE;
|
---|
| 899 | }
|
---|
| 900 | else
|
---|
| 901 | {
|
---|
| 902 | if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
|
---|
| 903 | {
|
---|
| 904 | LogError("Failed publishing to mqtt client.");
|
---|
| 905 | result = MU_FAILURE;
|
---|
| 906 | }
|
---|
| 907 | else
|
---|
| 908 | {
|
---|
| 909 | result = 0;
|
---|
| 910 | }
|
---|
| 911 | mqttmessage_destroy(mqtt_get_msg);
|
---|
| 912 | }
|
---|
| 913 | STRING_delete(msg_topic);
|
---|
| 914 | }
|
---|
| 915 | return result;
|
---|
| 916 | }
|
---|
| 917 |
|
---|
| 918 |
|
---|
| 919 | static void destroy_device_twin_get_message(MQTT_DEVICE_TWIN_ITEM* msg_entry)
|
---|
| 920 | {
|
---|
| 921 | free(msg_entry);
|
---|
| 922 | }
|
---|
| 923 |
|
---|
| 924 | static MQTT_DEVICE_TWIN_ITEM* create_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
|
---|
| 925 | {
|
---|
| 926 | MQTT_DEVICE_TWIN_ITEM* result;
|
---|
| 927 |
|
---|
| 928 | if ((result = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM))) == NULL)
|
---|
| 929 | {
|
---|
| 930 | LogError("Failed allocating device twin data.");
|
---|
| 931 | }
|
---|
| 932 | else
|
---|
| 933 | {
|
---|
| 934 | result->packet_id = get_next_packet_id(transport_data);
|
---|
| 935 | result->iothub_msg_id = 0;
|
---|
| 936 | result->device_twin_msg_type = RETRIEVE_PROPERTIES;
|
---|
| 937 | result->retryCount = 0;
|
---|
| 938 | result->msgPublishTime = 0;
|
---|
| 939 | result->msgEnqueueTime = 0;
|
---|
| 940 | result->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
|
---|
| 941 | result->device_twin_data = NULL;
|
---|
| 942 | result->userCallback = NULL;
|
---|
| 943 | result->userContext = NULL;
|
---|
| 944 | }
|
---|
| 945 |
|
---|
| 946 | return result;
|
---|
| 947 | }
|
---|
| 948 |
|
---|
| 949 | static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, MQTT_DEVICE_TWIN_ITEM* mqtt_info)
|
---|
| 950 | {
|
---|
| 951 | int result;
|
---|
| 952 |
|
---|
| 953 | STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
|
---|
| 954 | if (msg_topic == NULL)
|
---|
| 955 | {
|
---|
| 956 | LogError("Failed constructing get Prop topic.");
|
---|
| 957 | result = MU_FAILURE;
|
---|
| 958 | }
|
---|
| 959 | else
|
---|
| 960 | {
|
---|
| 961 | MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(mqtt_info->packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, NULL, 0);
|
---|
| 962 | if (mqtt_get_msg == NULL)
|
---|
| 963 | {
|
---|
| 964 | LogError("Failed constructing mqtt message.");
|
---|
| 965 | result = MU_FAILURE;
|
---|
| 966 | }
|
---|
| 967 | else
|
---|
| 968 | {
|
---|
| 969 | if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
|
---|
| 970 | {
|
---|
| 971 | LogError("Failed publishing to mqtt client.");
|
---|
| 972 | result = MU_FAILURE;
|
---|
| 973 | }
|
---|
| 974 | else
|
---|
| 975 | {
|
---|
| 976 | DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
|
---|
| 977 | result = 0;
|
---|
| 978 | }
|
---|
| 979 | mqttmessage_destroy(mqtt_get_msg);
|
---|
| 980 | }
|
---|
| 981 | STRING_delete(msg_topic);
|
---|
| 982 | }
|
---|
| 983 |
|
---|
| 984 | return result;
|
---|
| 985 | }
|
---|
| 986 |
|
---|
| 987 | static void sendPendingGetTwinRequests(PMQTTTRANSPORT_HANDLE_DATA transportData)
|
---|
| 988 | {
|
---|
| 989 | PDLIST_ENTRY dev_twin_item = transportData->pending_get_twin_queue.Flink;
|
---|
| 990 |
|
---|
| 991 | while (dev_twin_item != &transportData->pending_get_twin_queue)
|
---|
| 992 | {
|
---|
| 993 | DLIST_ENTRY saveListEntry;
|
---|
| 994 | saveListEntry.Flink = dev_twin_item->Flink;
|
---|
| 995 | MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 996 | (void)DList_RemoveEntryList(dev_twin_item);
|
---|
| 997 |
|
---|
| 998 | if (publish_device_twin_get_message(transportData, msg_entry) != 0)
|
---|
| 999 | {
|
---|
| 1000 | LogError("Failed sending pending get twin request");
|
---|
| 1001 | destroy_device_twin_get_message(msg_entry);
|
---|
| 1002 | }
|
---|
| 1003 | else
|
---|
| 1004 | {
|
---|
| 1005 | transportData->device_twin_get_sent = true;
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | dev_twin_item = saveListEntry.Flink;
|
---|
| 1009 | }
|
---|
| 1010 | }
|
---|
| 1011 |
|
---|
| 1012 | static void removeExpiredPendingGetTwinRequests(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1013 | {
|
---|
| 1014 | tickcounter_ms_t current_ms;
|
---|
| 1015 |
|
---|
| 1016 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, ¤t_ms) == 0)
|
---|
| 1017 | {
|
---|
| 1018 | PDLIST_ENTRY listItem = transport_data->pending_get_twin_queue.Flink;
|
---|
| 1019 |
|
---|
| 1020 | while (listItem != &transport_data->pending_get_twin_queue)
|
---|
| 1021 | {
|
---|
| 1022 | DLIST_ENTRY nextListItem;
|
---|
| 1023 | nextListItem.Flink = listItem->Flink;
|
---|
| 1024 | MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(listItem, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 1025 |
|
---|
| 1026 | if (((current_ms - msg_entry->msgEnqueueTime) / 1000) >= ON_DEMAND_GET_TWIN_REQUEST_TIMEOUT_SECS)
|
---|
| 1027 | {
|
---|
| 1028 | (void)DList_RemoveEntryList(listItem);
|
---|
| 1029 | msg_entry->userCallback(DEVICE_TWIN_UPDATE_COMPLETE, NULL, 0, msg_entry->userContext);
|
---|
| 1030 | destroy_device_twin_get_message(msg_entry);
|
---|
| 1031 | }
|
---|
| 1032 |
|
---|
| 1033 | listItem = nextListItem.Flink;
|
---|
| 1034 | }
|
---|
| 1035 | }
|
---|
| 1036 | }
|
---|
| 1037 |
|
---|
| 1038 | static void removeExpiredGetTwinRequestsPendingAck(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1039 | {
|
---|
| 1040 | tickcounter_ms_t current_ms;
|
---|
| 1041 |
|
---|
| 1042 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, ¤t_ms) == 0)
|
---|
| 1043 | {
|
---|
| 1044 | PDLIST_ENTRY listItem = transport_data->ack_waiting_queue.Flink;
|
---|
| 1045 |
|
---|
| 1046 | while (listItem != &transport_data->ack_waiting_queue)
|
---|
| 1047 | {
|
---|
| 1048 | DLIST_ENTRY nextListItem;
|
---|
| 1049 | nextListItem.Flink = listItem->Flink;
|
---|
| 1050 | MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(listItem, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 1051 |
|
---|
| 1052 | // Check if it is a on-demand get-twin request.
|
---|
| 1053 | if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES && msg_entry->userCallback != NULL)
|
---|
| 1054 | {
|
---|
| 1055 | if (((current_ms - msg_entry->msgEnqueueTime) / 1000) >= ON_DEMAND_GET_TWIN_REQUEST_TIMEOUT_SECS)
|
---|
| 1056 | {
|
---|
| 1057 | (void)DList_RemoveEntryList(listItem);
|
---|
| 1058 | msg_entry->userCallback(DEVICE_TWIN_UPDATE_COMPLETE, NULL, 0, msg_entry->userContext);
|
---|
| 1059 | destroy_device_twin_get_message(msg_entry);
|
---|
| 1060 | }
|
---|
| 1061 | }
|
---|
| 1062 |
|
---|
| 1063 | listItem = nextListItem.Flink;
|
---|
| 1064 | }
|
---|
| 1065 | }
|
---|
| 1066 | }
|
---|
| 1067 |
|
---|
| 1068 | static int publish_device_twin_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, IOTHUB_DEVICE_TWIN* device_twin_info, MQTT_DEVICE_TWIN_ITEM* mqtt_info)
|
---|
| 1069 | {
|
---|
| 1070 | int result;
|
---|
| 1071 | mqtt_info->packet_id = get_next_packet_id(transport_data);
|
---|
| 1072 | mqtt_info->device_twin_msg_type = REPORTED_STATE;
|
---|
| 1073 |
|
---|
| 1074 | STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
|
---|
| 1075 | if (msgTopic == NULL)
|
---|
| 1076 | {
|
---|
| 1077 | LogError("Failed constructing reported prop topic.");
|
---|
| 1078 | result = MU_FAILURE;
|
---|
| 1079 | }
|
---|
| 1080 | else
|
---|
| 1081 | {
|
---|
| 1082 | const CONSTBUFFER* data_buff;
|
---|
| 1083 | if ((data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle)) == NULL)
|
---|
| 1084 | {
|
---|
| 1085 | LogError("Failed retrieving buffer content");
|
---|
| 1086 | result = MU_FAILURE;
|
---|
| 1087 | }
|
---|
| 1088 | else
|
---|
| 1089 | {
|
---|
| 1090 | MQTT_MESSAGE_HANDLE mqtt_rpt_msg = mqttmessage_create_in_place(mqtt_info->packet_id, STRING_c_str(msgTopic), DELIVER_AT_MOST_ONCE, data_buff->buffer, data_buff->size);
|
---|
| 1091 | if (mqtt_rpt_msg == NULL)
|
---|
| 1092 | {
|
---|
| 1093 | LogError("Failed creating mqtt message");
|
---|
| 1094 | result = MU_FAILURE;
|
---|
| 1095 | }
|
---|
| 1096 | else
|
---|
| 1097 | {
|
---|
| 1098 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
|
---|
| 1099 | {
|
---|
| 1100 | LogError("Failed retrieving tickcounter info");
|
---|
| 1101 | result = MU_FAILURE;
|
---|
| 1102 | }
|
---|
| 1103 | else
|
---|
| 1104 | {
|
---|
| 1105 | if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
|
---|
| 1106 | {
|
---|
| 1107 | LogError("Failed publishing mqtt message");
|
---|
| 1108 | result = MU_FAILURE;
|
---|
| 1109 | }
|
---|
| 1110 | else
|
---|
| 1111 | {
|
---|
| 1112 | mqtt_info->retryCount++;
|
---|
| 1113 | result = 0;
|
---|
| 1114 | }
|
---|
| 1115 | }
|
---|
| 1116 | mqttmessage_destroy(mqtt_rpt_msg);
|
---|
| 1117 | }
|
---|
| 1118 | }
|
---|
| 1119 | STRING_delete(msgTopic);
|
---|
| 1120 | }
|
---|
| 1121 | return result;
|
---|
| 1122 | }
|
---|
| 1123 |
|
---|
| 1124 | static void changeStateToSubscribeIfAllowed(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1125 | {
|
---|
| 1126 | if (transport_data->currPacketState != CONNACK_TYPE &&
|
---|
| 1127 | transport_data->currPacketState != CONNECT_TYPE &&
|
---|
| 1128 | transport_data->currPacketState != DISCONNECT_TYPE &&
|
---|
| 1129 | transport_data->currPacketState != PACKET_TYPE_ERROR)
|
---|
| 1130 | {
|
---|
| 1131 | transport_data->currPacketState = SUBSCRIBE_TYPE;
|
---|
| 1132 | }
|
---|
| 1133 | }
|
---|
| 1134 |
|
---|
| 1135 | static int subscribeToNotifyStateIfNeeded(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1136 | {
|
---|
| 1137 | int result;
|
---|
| 1138 |
|
---|
| 1139 | if (transport_data->topic_NotifyState == NULL)
|
---|
| 1140 | {
|
---|
| 1141 | transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
|
---|
| 1142 | if (transport_data->topic_NotifyState == NULL)
|
---|
| 1143 | {
|
---|
| 1144 | LogError("Failure: unable constructing notify state topic");
|
---|
| 1145 | result = MU_FAILURE;
|
---|
| 1146 | }
|
---|
| 1147 | else
|
---|
| 1148 | {
|
---|
| 1149 | transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
|
---|
| 1150 | result = 0;
|
---|
| 1151 | }
|
---|
| 1152 | }
|
---|
| 1153 | else
|
---|
| 1154 | {
|
---|
| 1155 | result = 0;
|
---|
| 1156 | }
|
---|
| 1157 |
|
---|
| 1158 | if (result == 0)
|
---|
| 1159 | {
|
---|
| 1160 | changeStateToSubscribeIfAllowed(transport_data);
|
---|
| 1161 | }
|
---|
| 1162 |
|
---|
| 1163 | return result;
|
---|
| 1164 | }
|
---|
| 1165 |
|
---|
| 1166 |
|
---|
| 1167 | static bool isSystemProperty(const char* tokenData)
|
---|
| 1168 | {
|
---|
| 1169 | bool result = false;
|
---|
| 1170 | size_t propCount = sizeof(sysPropList) / sizeof(sysPropList[0]);
|
---|
| 1171 | size_t index = 0;
|
---|
| 1172 | for (index = 0; index < propCount; index++)
|
---|
| 1173 | {
|
---|
| 1174 | if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
|
---|
| 1175 | {
|
---|
| 1176 | result = true;
|
---|
| 1177 | break;
|
---|
| 1178 | }
|
---|
| 1179 | }
|
---|
| 1180 | return result;
|
---|
| 1181 | }
|
---|
| 1182 |
|
---|
| 1183 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_061: [ If the message is sent to an input queue, `IoTHubTransport_MQTT_Common_DoWork` shall parse out to the input queue name and store it in the message with IoTHubMessage_SetInputName ]
|
---|
| 1184 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_062: [ If IoTHubTransport_MQTT_Common_DoWork receives a malformatted inputQueue, it shall fail ]
|
---|
| 1185 | static int addInputNamePropertyToMessage(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
|
---|
| 1186 | {
|
---|
| 1187 | int result = MU_FAILURE;
|
---|
| 1188 | int number_tokens_read = 0;
|
---|
| 1189 |
|
---|
| 1190 | STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(topic_name);
|
---|
| 1191 | if (token_handle == NULL)
|
---|
| 1192 | {
|
---|
| 1193 | LogError("STRING_TOKENIZER_create_from_char failed\n");
|
---|
| 1194 | result = MU_FAILURE;
|
---|
| 1195 | }
|
---|
| 1196 | else
|
---|
| 1197 | {
|
---|
| 1198 | STRING_HANDLE token_value;
|
---|
| 1199 | if ((token_value = STRING_new()) == NULL)
|
---|
| 1200 | {
|
---|
| 1201 | LogError("Failed allocating token_value");
|
---|
| 1202 | }
|
---|
| 1203 | else
|
---|
| 1204 | {
|
---|
| 1205 | while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
|
---|
| 1206 | {
|
---|
| 1207 | number_tokens_read++;
|
---|
| 1208 | if (number_tokens_read == (slashes_to_reach_input_name + 1))
|
---|
| 1209 | {
|
---|
| 1210 | if ((IOTHUB_MESSAGE_OK != IoTHubMessage_SetInputName(IoTHubMessage, STRING_c_str(token_value))))
|
---|
| 1211 | {
|
---|
| 1212 | LogError("Failed adding input name to msg");
|
---|
| 1213 | result = MU_FAILURE;
|
---|
| 1214 | }
|
---|
| 1215 | else
|
---|
| 1216 | {
|
---|
| 1217 | result = 0;
|
---|
| 1218 | }
|
---|
| 1219 | break;
|
---|
| 1220 | }
|
---|
| 1221 | }
|
---|
| 1222 | }
|
---|
| 1223 | STRING_delete(token_value);
|
---|
| 1224 |
|
---|
| 1225 | if (number_tokens_read != (slashes_to_reach_input_name + 1))
|
---|
| 1226 | {
|
---|
| 1227 | LogError("Not enough '/' to contain input name. Got %d, need at least %d", number_tokens_read, (slashes_to_reach_input_name + 1));
|
---|
| 1228 | result = MU_FAILURE;
|
---|
| 1229 | }
|
---|
| 1230 | STRING_TOKENIZER_destroy(token_handle);
|
---|
| 1231 | }
|
---|
| 1232 |
|
---|
| 1233 | return result;
|
---|
| 1234 | }
|
---|
| 1235 |
|
---|
| 1236 | static int setMqttMessagePropertyIfPossible(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* propName, const char* propValue, size_t nameLen)
|
---|
| 1237 | {
|
---|
| 1238 | // Not finding a system property to map to isn't an error.
|
---|
| 1239 | int result = 0;
|
---|
| 1240 |
|
---|
| 1241 | if (nameLen > 4)
|
---|
| 1242 | {
|
---|
| 1243 | if (strcmp((const char*)&propName[nameLen - 4], CONNECTION_DEVICE_ID) == 0)
|
---|
| 1244 | {
|
---|
| 1245 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_063: [ If type is IOTHUB_TYPE_TELEMETRY and the system property `$.cdid` is defined, its value shall be set on the IOTHUB_MESSAGE_HANDLE's ConnectionDeviceId property ]
|
---|
| 1246 | if (IoTHubMessage_SetConnectionDeviceId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1247 | {
|
---|
| 1248 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'messageId' property.");
|
---|
| 1249 | result = MU_FAILURE;
|
---|
| 1250 | }
|
---|
| 1251 | return result;
|
---|
| 1252 | }
|
---|
| 1253 | if (strcmp((const char*)&propName[nameLen - 4], CONNECTION_MODULE_ID_PROPERTY) == 0)
|
---|
| 1254 | {
|
---|
| 1255 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_064: [ If type is IOTHUB_TYPE_TELEMETRY and the system property `$.cmid` is defined, its value shall be set on the IOTHUB_MESSAGE_HANDLE's ConnectionModuleId property ]
|
---|
| 1256 | if (IoTHubMessage_SetConnectionModuleId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1257 | {
|
---|
| 1258 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'correlationId' property.");
|
---|
| 1259 | result = MU_FAILURE;
|
---|
| 1260 | }
|
---|
| 1261 | return result;
|
---|
| 1262 | }
|
---|
| 1263 | }
|
---|
| 1264 | if (nameLen > 3)
|
---|
| 1265 | {
|
---|
| 1266 | if (strcmp((const char*)&propName[nameLen - 3], MESSAGE_ID_PROPERTY) == 0)
|
---|
| 1267 | {
|
---|
| 1268 | if (IoTHubMessage_SetMessageId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1269 | {
|
---|
| 1270 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'messageId' property.");
|
---|
| 1271 | result = MU_FAILURE;
|
---|
| 1272 | }
|
---|
| 1273 | return result;
|
---|
| 1274 | }
|
---|
| 1275 | else if (strcmp((const char*)&propName[nameLen - 3], CORRELATION_ID_PROPERTY) == 0)
|
---|
| 1276 | {
|
---|
| 1277 | if (IoTHubMessage_SetCorrelationId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1278 | {
|
---|
| 1279 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'correlationId' property.");
|
---|
| 1280 | result = MU_FAILURE;
|
---|
| 1281 | }
|
---|
| 1282 | return result;
|
---|
| 1283 | }
|
---|
| 1284 | }
|
---|
| 1285 |
|
---|
| 1286 | if (nameLen > 2)
|
---|
| 1287 | {
|
---|
| 1288 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_012: [ If type is IOTHUB_TYPE_TELEMETRY and the system property `$.ct` is defined, its value shall be set on the IOTHUB_MESSAGE_HANDLE's ContentType property ]
|
---|
| 1289 | if (strcmp((const char*)&propName[nameLen - 2], CONTENT_TYPE_PROPERTY) == 0)
|
---|
| 1290 | {
|
---|
| 1291 | if (IoTHubMessage_SetContentTypeSystemProperty(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1292 | {
|
---|
| 1293 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'customContentType' property.");
|
---|
| 1294 | result = MU_FAILURE;
|
---|
| 1295 | }
|
---|
| 1296 | return result;
|
---|
| 1297 | }
|
---|
| 1298 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_013: [ If type is IOTHUB_TYPE_TELEMETRY and the system property `$.ce` is defined, its value shall be set on the IOTHUB_MESSAGE_HANDLE's ContentEncoding property ]
|
---|
| 1299 | else if (strcmp((const char*)&propName[nameLen - 2], CONTENT_ENCODING_PROPERTY) == 0)
|
---|
| 1300 | {
|
---|
| 1301 | if (IoTHubMessage_SetContentEncodingSystemProperty(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
|
---|
| 1302 | {
|
---|
| 1303 | LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'contentEncoding' property.");
|
---|
| 1304 | result = MU_FAILURE;
|
---|
| 1305 | }
|
---|
| 1306 | return result;
|
---|
| 1307 | }
|
---|
| 1308 | }
|
---|
| 1309 |
|
---|
| 1310 | return result;
|
---|
| 1311 | }
|
---|
| 1312 |
|
---|
| 1313 | static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name, bool urldecode)
|
---|
| 1314 | {
|
---|
| 1315 | int result;
|
---|
| 1316 | STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create_from_char(topic_name);
|
---|
| 1317 | if (token != NULL)
|
---|
| 1318 | {
|
---|
| 1319 | MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
|
---|
| 1320 | if (propertyMap == NULL)
|
---|
| 1321 | {
|
---|
| 1322 | LogError("Failure to retrieve IoTHubMessage_properties.");
|
---|
| 1323 | result = MU_FAILURE;
|
---|
| 1324 | }
|
---|
| 1325 | else
|
---|
| 1326 | {
|
---|
| 1327 | STRING_HANDLE output = STRING_new();
|
---|
| 1328 | if (output == NULL)
|
---|
| 1329 | {
|
---|
| 1330 | LogError("Failure to allocate STRING_new.");
|
---|
| 1331 | result = MU_FAILURE;
|
---|
| 1332 | }
|
---|
| 1333 | else
|
---|
| 1334 | {
|
---|
| 1335 | result = 0;
|
---|
| 1336 |
|
---|
| 1337 | while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
|
---|
| 1338 | {
|
---|
| 1339 | const char* tokenData = STRING_c_str(output);
|
---|
| 1340 | size_t tokenLen = strlen(tokenData);
|
---|
| 1341 | if (tokenData == NULL || tokenLen == 0)
|
---|
| 1342 | {
|
---|
| 1343 | break;
|
---|
| 1344 | }
|
---|
| 1345 | else
|
---|
| 1346 | {
|
---|
| 1347 | if (isSystemProperty(tokenData))
|
---|
| 1348 | {
|
---|
| 1349 | const char* iterator = tokenData;
|
---|
| 1350 | while (iterator != NULL && *iterator != '\0' && result == 0)
|
---|
| 1351 | {
|
---|
| 1352 | if (*iterator == '=')
|
---|
| 1353 | {
|
---|
| 1354 | char* propName = NULL;
|
---|
| 1355 | char* propValue = NULL;
|
---|
| 1356 | size_t nameLen = iterator - tokenData;
|
---|
| 1357 | size_t valLen = tokenLen - (nameLen + 1) + 1;
|
---|
| 1358 |
|
---|
| 1359 | if ((propName = malloc(nameLen + 1)) == NULL || (propValue = malloc(valLen + 1)) == NULL)
|
---|
| 1360 | {
|
---|
| 1361 | LogError("Failed allocating property name (%p) and/or value (%p)", propName, propValue);
|
---|
| 1362 | free(propName);
|
---|
| 1363 | result = MU_FAILURE;
|
---|
| 1364 | }
|
---|
| 1365 | else
|
---|
| 1366 | {
|
---|
| 1367 | memcpy(propName, tokenData, nameLen);
|
---|
| 1368 | propName[nameLen] = '\0';
|
---|
| 1369 |
|
---|
| 1370 | memcpy(propValue, iterator + 1, valLen);
|
---|
| 1371 | propValue[valLen] = '\0';
|
---|
| 1372 |
|
---|
| 1373 | if (urldecode)
|
---|
| 1374 | {
|
---|
| 1375 | STRING_HANDLE propValue_decoded;
|
---|
| 1376 | if ((propValue_decoded = URL_DecodeString(propValue)) == NULL)
|
---|
| 1377 | {
|
---|
| 1378 | LogError("Failed to URL decode property value");
|
---|
| 1379 | result = MU_FAILURE;
|
---|
| 1380 | }
|
---|
| 1381 | else if (setMqttMessagePropertyIfPossible(IoTHubMessage, propName, STRING_c_str(propValue_decoded), nameLen) != 0)
|
---|
| 1382 | {
|
---|
| 1383 | LogError("Unable to set message property");
|
---|
| 1384 | result = MU_FAILURE;
|
---|
| 1385 | }
|
---|
| 1386 | STRING_delete(propValue_decoded);
|
---|
| 1387 | }
|
---|
| 1388 | else
|
---|
| 1389 | {
|
---|
| 1390 | if (setMqttMessagePropertyIfPossible(IoTHubMessage, propName, propValue, nameLen) != 0)
|
---|
| 1391 | {
|
---|
| 1392 | LogError("Unable to set message property");
|
---|
| 1393 | result = MU_FAILURE;
|
---|
| 1394 | }
|
---|
| 1395 | }
|
---|
| 1396 | free(propName);
|
---|
| 1397 | free(propValue);
|
---|
| 1398 | }
|
---|
| 1399 | break;
|
---|
| 1400 | }
|
---|
| 1401 | iterator++;
|
---|
| 1402 | }
|
---|
| 1403 | }
|
---|
| 1404 | else //User Properties
|
---|
| 1405 | {
|
---|
| 1406 | const char* iterator = tokenData;
|
---|
| 1407 | while (iterator != NULL && *iterator != '\0' && result == 0)
|
---|
| 1408 | {
|
---|
| 1409 | if (*iterator == '=')
|
---|
| 1410 | {
|
---|
| 1411 | char* propName = NULL;
|
---|
| 1412 | char* propValue = NULL;
|
---|
| 1413 | size_t nameLen = iterator - tokenData;
|
---|
| 1414 | size_t valLen = tokenLen - (nameLen + 1) + 1;
|
---|
| 1415 |
|
---|
| 1416 | if ((propName = (char*)malloc(nameLen + 1)) == NULL || (propValue = (char*)malloc(valLen + 1)) == NULL)
|
---|
| 1417 | {
|
---|
| 1418 | free(propName);
|
---|
| 1419 | LogError("Failed allocating property information");
|
---|
| 1420 | result = MU_FAILURE;
|
---|
| 1421 | }
|
---|
| 1422 | else
|
---|
| 1423 | {
|
---|
| 1424 | memcpy(propName, tokenData, nameLen);
|
---|
| 1425 | propName[nameLen] = '\0';
|
---|
| 1426 |
|
---|
| 1427 | memcpy(propValue, iterator + 1, valLen);
|
---|
| 1428 | propValue[valLen] = '\0';
|
---|
| 1429 |
|
---|
| 1430 | if (urldecode)
|
---|
| 1431 | {
|
---|
| 1432 | STRING_HANDLE propName_decoded = URL_DecodeString(propName);
|
---|
| 1433 | STRING_HANDLE propValue_decoded = URL_DecodeString(propValue);
|
---|
| 1434 | if (propName_decoded == NULL || propValue_decoded == NULL)
|
---|
| 1435 | {
|
---|
| 1436 | LogError("Failed to URL decode property");
|
---|
| 1437 | result = MU_FAILURE;
|
---|
| 1438 | }
|
---|
| 1439 | else if (Map_AddOrUpdate(propertyMap, STRING_c_str(propName_decoded), STRING_c_str(propValue_decoded)) != MAP_OK)
|
---|
| 1440 | {
|
---|
| 1441 | LogError("Map_AddOrUpdate failed.");
|
---|
| 1442 | result = MU_FAILURE;
|
---|
| 1443 | }
|
---|
| 1444 | STRING_delete(propName_decoded);
|
---|
| 1445 | STRING_delete(propValue_decoded);
|
---|
| 1446 | }
|
---|
| 1447 | else
|
---|
| 1448 | {
|
---|
| 1449 | if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
|
---|
| 1450 | {
|
---|
| 1451 | LogError("Map_AddOrUpdate failed.");
|
---|
| 1452 | result = MU_FAILURE;
|
---|
| 1453 | }
|
---|
| 1454 | }
|
---|
| 1455 | free(propName);
|
---|
| 1456 | free(propValue);
|
---|
| 1457 | }
|
---|
| 1458 | break;
|
---|
| 1459 | }
|
---|
| 1460 | iterator++;
|
---|
| 1461 | }
|
---|
| 1462 | }
|
---|
| 1463 | }
|
---|
| 1464 | }
|
---|
| 1465 | STRING_delete(output);
|
---|
| 1466 | }
|
---|
| 1467 | }
|
---|
| 1468 | STRING_TOKENIZER_destroy(token);
|
---|
| 1469 | }
|
---|
| 1470 | else
|
---|
| 1471 | {
|
---|
| 1472 | LogError("Unable to create Tokenizer object.");
|
---|
| 1473 | result = MU_FAILURE;
|
---|
| 1474 | }
|
---|
| 1475 | return result;
|
---|
| 1476 | }
|
---|
| 1477 |
|
---|
| 1478 | static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
|
---|
| 1479 | {
|
---|
| 1480 | /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
|
---|
| 1481 | if (msgHandle != NULL && callbackCtx != NULL)
|
---|
| 1482 | {
|
---|
| 1483 | /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
|
---|
| 1484 | const char* topic_resp = mqttmessage_getTopicName(msgHandle);
|
---|
| 1485 | if (topic_resp == NULL)
|
---|
| 1486 | {
|
---|
| 1487 | LogError("Failure: NULL topic name encountered");
|
---|
| 1488 | }
|
---|
| 1489 | else
|
---|
| 1490 | {
|
---|
| 1491 | PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
|
---|
| 1492 |
|
---|
| 1493 | IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp, STRING_c_str(transportData->topic_InputQueue));
|
---|
| 1494 | if (type == IOTHUB_TYPE_DEVICE_TWIN)
|
---|
| 1495 | {
|
---|
| 1496 | size_t request_id;
|
---|
| 1497 | int status_code;
|
---|
| 1498 | bool notification_msg;
|
---|
| 1499 | if (parse_device_twin_topic_info(topic_resp, ¬ification_msg, &request_id, &status_code) != 0)
|
---|
| 1500 | {
|
---|
| 1501 | LogError("Failure: parsing device topic info");
|
---|
| 1502 | }
|
---|
| 1503 | else
|
---|
| 1504 | {
|
---|
| 1505 | const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
|
---|
| 1506 | if (notification_msg)
|
---|
| 1507 | {
|
---|
| 1508 | transportData->transport_callbacks.twin_retrieve_prop_complete_cb(DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length, transportData->transport_ctx);
|
---|
| 1509 | }
|
---|
| 1510 | else
|
---|
| 1511 | {
|
---|
| 1512 | PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
|
---|
| 1513 | while (dev_twin_item != &transportData->ack_waiting_queue)
|
---|
| 1514 | {
|
---|
| 1515 | DLIST_ENTRY saveListEntry;
|
---|
| 1516 | saveListEntry.Flink = dev_twin_item->Flink;
|
---|
| 1517 | MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 1518 | if (request_id == msg_entry->packet_id)
|
---|
| 1519 | {
|
---|
| 1520 | (void)DList_RemoveEntryList(dev_twin_item);
|
---|
| 1521 | if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
|
---|
| 1522 | {
|
---|
| 1523 | if (msg_entry->userCallback == NULL)
|
---|
| 1524 | {
|
---|
| 1525 | /* 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 IoTHubClientCore_LL_RetrievePropertyComplete... ] */
|
---|
| 1526 | transportData->transport_callbacks.twin_retrieve_prop_complete_cb(DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length, transportData->transport_ctx);
|
---|
| 1527 | // Only after receiving device twin request should we start listening for patches.
|
---|
| 1528 | (void)subscribeToNotifyStateIfNeeded(transportData);
|
---|
| 1529 | }
|
---|
| 1530 | else
|
---|
| 1531 | {
|
---|
| 1532 | // This is a on-demand get twin request.
|
---|
| 1533 | msg_entry->userCallback(DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length, msg_entry->userContext);
|
---|
| 1534 | }
|
---|
| 1535 | }
|
---|
| 1536 | else
|
---|
| 1537 | {
|
---|
| 1538 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_055: [ if device_twin_msg_type is not RETRIEVE_PROPERTIES then mqtt_notification_callback shall call IoTHubClientCore_LL_ReportedStateComplete ] */
|
---|
| 1539 | transportData->transport_callbacks.twin_rpt_state_complete_cb(msg_entry->iothub_msg_id, status_code, transportData->transport_ctx);
|
---|
| 1540 | // Only after receiving device twin request should we start listening for patches.
|
---|
| 1541 | (void)subscribeToNotifyStateIfNeeded(transportData);
|
---|
| 1542 | }
|
---|
| 1543 |
|
---|
| 1544 | destroy_device_twin_get_message(msg_entry);
|
---|
| 1545 | break;
|
---|
| 1546 | }
|
---|
| 1547 | dev_twin_item = saveListEntry.Flink;
|
---|
| 1548 | }
|
---|
| 1549 | }
|
---|
| 1550 | }
|
---|
| 1551 | }
|
---|
| 1552 | else if (type == IOTHUB_TYPE_DEVICE_METHODS)
|
---|
| 1553 | {
|
---|
| 1554 | STRING_HANDLE method_name = STRING_new();
|
---|
| 1555 | if (method_name == NULL)
|
---|
| 1556 | {
|
---|
| 1557 | LogError("Failure: allocating method_name string value");
|
---|
| 1558 | }
|
---|
| 1559 | else
|
---|
| 1560 | {
|
---|
| 1561 | DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO));
|
---|
| 1562 | if (dev_method_info == NULL)
|
---|
| 1563 | {
|
---|
| 1564 | LogError("Failure: allocating DEVICE_METHOD_INFO object");
|
---|
| 1565 | }
|
---|
| 1566 | else
|
---|
| 1567 | {
|
---|
| 1568 | dev_method_info->request_id = STRING_new();
|
---|
| 1569 | if (dev_method_info->request_id == NULL)
|
---|
| 1570 | {
|
---|
| 1571 | LogError("Failure constructing request_id string");
|
---|
| 1572 | free(dev_method_info);
|
---|
| 1573 | }
|
---|
| 1574 | else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
|
---|
| 1575 | {
|
---|
| 1576 | LogError("Failure: retrieve device topic info");
|
---|
| 1577 | STRING_delete(dev_method_info->request_id);
|
---|
| 1578 | free(dev_method_info);
|
---|
| 1579 | }
|
---|
| 1580 | else
|
---|
| 1581 | {
|
---|
| 1582 | /* CodesSRS_IOTHUB_MQTT_TRANSPORT_07_053: [ If type is IOTHUB_TYPE_DEVICE_METHODS, then on success mqtt_notification_callback shall call IoTHubClientCore_LL_DeviceMethodComplete. ] */
|
---|
| 1583 | const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
|
---|
| 1584 | if (transportData->transport_callbacks.method_complete_cb(STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info, transportData->transport_ctx) != 0)
|
---|
| 1585 | {
|
---|
| 1586 | LogError("Failure: IoTHubClientCore_LL_DeviceMethodComplete");
|
---|
| 1587 | STRING_delete(dev_method_info->request_id);
|
---|
| 1588 | free(dev_method_info);
|
---|
| 1589 | }
|
---|
| 1590 | }
|
---|
| 1591 | }
|
---|
| 1592 | STRING_delete(method_name);
|
---|
| 1593 | }
|
---|
| 1594 | }
|
---|
| 1595 | else
|
---|
| 1596 | {
|
---|
| 1597 | const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
|
---|
| 1598 | IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
|
---|
| 1599 | if (IoTHubMessage == NULL)
|
---|
| 1600 | {
|
---|
| 1601 | LogError("Failure: IotHub Message creation has failed.");
|
---|
| 1602 | }
|
---|
| 1603 | else
|
---|
| 1604 | {
|
---|
| 1605 | if ((type == IOTHUB_TYPE_EVENT_QUEUE) && (addInputNamePropertyToMessage(IoTHubMessage, topic_resp) != 0))
|
---|
| 1606 | {
|
---|
| 1607 | LogError("failure adding input name to property.");
|
---|
| 1608 | }
|
---|
| 1609 | // Will need to update this when the service has messages that can be rejected
|
---|
| 1610 | else if (extractMqttProperties(IoTHubMessage, topic_resp, transportData->auto_url_encode_decode) != 0)
|
---|
| 1611 | {
|
---|
| 1612 | LogError("failure extracting mqtt properties.");
|
---|
| 1613 | }
|
---|
| 1614 | else
|
---|
| 1615 | {
|
---|
| 1616 | MESSAGE_CALLBACK_INFO* messageData = (MESSAGE_CALLBACK_INFO*)malloc(sizeof(MESSAGE_CALLBACK_INFO));
|
---|
| 1617 | if (messageData == NULL)
|
---|
| 1618 | {
|
---|
| 1619 | LogError("malloc failed");
|
---|
| 1620 | }
|
---|
| 1621 | else
|
---|
| 1622 | {
|
---|
| 1623 | messageData->messageHandle = IoTHubMessage;
|
---|
| 1624 | messageData->transportContext = NULL;
|
---|
| 1625 |
|
---|
| 1626 | if (type == IOTHUB_TYPE_EVENT_QUEUE)
|
---|
| 1627 | {
|
---|
| 1628 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_31_065: [ If type is IOTHUB_TYPE_TELEMETRY and sent to an input queue, then on success `mqtt_notification_callback` shall call `IoTHubClient_LL_MessageCallback`. ]
|
---|
| 1629 | if (!transportData->transport_callbacks.msg_input_cb(messageData, transportData->transport_ctx))
|
---|
| 1630 | {
|
---|
| 1631 | LogError("IoTHubClientCore_LL_MessageCallbackreturned false");
|
---|
| 1632 |
|
---|
| 1633 | IoTHubMessage_Destroy(IoTHubMessage);
|
---|
| 1634 | free(messageData);
|
---|
| 1635 | }
|
---|
| 1636 | }
|
---|
| 1637 | else
|
---|
| 1638 | {
|
---|
| 1639 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_056: [ If type is IOTHUB_TYPE_TELEMETRY, then on success mqtt_notification_callback shall call IoTHubClientCore_LL_MessageCallback. ] */
|
---|
| 1640 | if (!transportData->transport_callbacks.msg_cb(messageData, transportData->transport_ctx))
|
---|
| 1641 | {
|
---|
| 1642 | LogError("IoTHubClientCore_LL_MessageCallback returned false");
|
---|
| 1643 | IoTHubMessage_Destroy(IoTHubMessage);
|
---|
| 1644 | free(messageData);
|
---|
| 1645 | }
|
---|
| 1646 | }
|
---|
| 1647 | }
|
---|
| 1648 | }
|
---|
| 1649 | }
|
---|
| 1650 | }
|
---|
| 1651 | }
|
---|
| 1652 | }
|
---|
| 1653 | }
|
---|
| 1654 |
|
---|
| 1655 | static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
|
---|
| 1656 | {
|
---|
| 1657 | (void)handle;
|
---|
| 1658 | if (callbackCtx != NULL)
|
---|
| 1659 | {
|
---|
| 1660 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
|
---|
| 1661 |
|
---|
| 1662 | switch (actionResult)
|
---|
| 1663 | {
|
---|
| 1664 | case MQTT_CLIENT_ON_PUBLISH_ACK:
|
---|
| 1665 | case MQTT_CLIENT_ON_PUBLISH_COMP:
|
---|
| 1666 | {
|
---|
| 1667 | const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
|
---|
| 1668 | if (puback != NULL)
|
---|
| 1669 | {
|
---|
| 1670 | PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
|
---|
| 1671 | while (currentListEntry != &transport_data->telemetry_waitingForAck)
|
---|
| 1672 | {
|
---|
| 1673 | MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
|
---|
| 1674 | DLIST_ENTRY saveListEntry;
|
---|
| 1675 | saveListEntry.Flink = currentListEntry->Flink;
|
---|
| 1676 |
|
---|
| 1677 | if (puback->packetId == mqttMsgEntry->packet_id)
|
---|
| 1678 | {
|
---|
| 1679 | (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
|
---|
| 1680 | sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
|
---|
| 1681 | free(mqttMsgEntry);
|
---|
| 1682 | }
|
---|
| 1683 | currentListEntry = saveListEntry.Flink;
|
---|
| 1684 | }
|
---|
| 1685 | }
|
---|
| 1686 | else
|
---|
| 1687 | {
|
---|
| 1688 | LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
|
---|
| 1689 | }
|
---|
| 1690 | break;
|
---|
| 1691 | }
|
---|
| 1692 | case MQTT_CLIENT_ON_CONNACK:
|
---|
| 1693 | {
|
---|
| 1694 | const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
|
---|
| 1695 | if (connack != NULL)
|
---|
| 1696 | {
|
---|
| 1697 | if (connack->returnCode == CONNECTION_ACCEPTED)
|
---|
| 1698 | {
|
---|
| 1699 | // The connect packet has been acked
|
---|
| 1700 | transport_data->currPacketState = CONNACK_TYPE;
|
---|
| 1701 | transport_data->isRecoverableError = true;
|
---|
| 1702 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTED;
|
---|
| 1703 |
|
---|
| 1704 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_008: [ Upon successful connection the retry control shall be reset using retry_control_reset() ]
|
---|
| 1705 | retry_control_reset(transport_data->retry_control_handle);
|
---|
| 1706 |
|
---|
| 1707 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK, transport_data->transport_ctx);
|
---|
| 1708 | }
|
---|
| 1709 | else
|
---|
| 1710 | {
|
---|
| 1711 | if (connack->returnCode == CONN_REFUSED_SERVER_UNAVAIL)
|
---|
| 1712 | {
|
---|
| 1713 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED, transport_data->transport_ctx);
|
---|
| 1714 | }
|
---|
| 1715 | else if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD || connack->returnCode == CONN_REFUSED_ID_REJECTED)
|
---|
| 1716 | {
|
---|
| 1717 | transport_data->isRecoverableError = false;
|
---|
| 1718 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL, transport_data->transport_ctx);
|
---|
| 1719 | }
|
---|
| 1720 | else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
|
---|
| 1721 | {
|
---|
| 1722 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED, transport_data->transport_ctx);
|
---|
| 1723 | }
|
---|
| 1724 | else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
|
---|
| 1725 | {
|
---|
| 1726 | transport_data->isRecoverableError = false;
|
---|
| 1727 | }
|
---|
| 1728 | LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode));
|
---|
| 1729 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_PENDING_CLOSE;
|
---|
| 1730 | transport_data->currPacketState = PACKET_TYPE_ERROR;
|
---|
| 1731 | }
|
---|
| 1732 | }
|
---|
| 1733 | else
|
---|
| 1734 | {
|
---|
| 1735 | LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
|
---|
| 1736 | }
|
---|
| 1737 | break;
|
---|
| 1738 | }
|
---|
| 1739 | case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
|
---|
| 1740 | {
|
---|
| 1741 | const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
|
---|
| 1742 | if (suback != NULL)
|
---|
| 1743 | {
|
---|
| 1744 | size_t index = 0;
|
---|
| 1745 | for (index = 0; index < suback->qosCount; index++)
|
---|
| 1746 | {
|
---|
| 1747 | if (suback->qosReturn[index] == DELIVER_FAILURE)
|
---|
| 1748 | {
|
---|
| 1749 | LogError("Subscribe delivery failure of subscribe %lu", (unsigned long)index);
|
---|
| 1750 | }
|
---|
| 1751 | }
|
---|
| 1752 | // The subscribed packet has been acked
|
---|
| 1753 | transport_data->currPacketState = SUBACK_TYPE;
|
---|
| 1754 |
|
---|
| 1755 | // Is this a twin message
|
---|
| 1756 | if (suback->packetId == transport_data->twin_resp_packet_id)
|
---|
| 1757 | {
|
---|
| 1758 | transport_data->twin_resp_sub_recv = true;
|
---|
| 1759 | }
|
---|
| 1760 | }
|
---|
| 1761 | else
|
---|
| 1762 | {
|
---|
| 1763 | LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
|
---|
| 1764 | }
|
---|
| 1765 | break;
|
---|
| 1766 | }
|
---|
| 1767 | case MQTT_CLIENT_ON_PUBLISH_RECV:
|
---|
| 1768 | case MQTT_CLIENT_ON_PUBLISH_REL:
|
---|
| 1769 | {
|
---|
| 1770 | // Currently not used
|
---|
| 1771 | break;
|
---|
| 1772 | }
|
---|
| 1773 | case MQTT_CLIENT_ON_DISCONNECT:
|
---|
| 1774 | {
|
---|
| 1775 | // Close the client so we can reconnect again
|
---|
| 1776 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
|
---|
| 1777 | break;
|
---|
| 1778 | }
|
---|
| 1779 | case MQTT_CLIENT_ON_UNSUBSCRIBE_ACK:
|
---|
| 1780 | case MQTT_CLIENT_ON_PING_RESPONSE:
|
---|
| 1781 | default:
|
---|
| 1782 | {
|
---|
| 1783 | break;
|
---|
| 1784 | }
|
---|
| 1785 | }
|
---|
| 1786 | }
|
---|
| 1787 | }
|
---|
| 1788 |
|
---|
| 1789 | // Prior to creating a new connection, if we have an existing xioTransport that has been connected before
|
---|
| 1790 | // we need to clear it now or else cached settings (especially TLS when communicating with HTTP proxies)
|
---|
| 1791 | // will break reconnection attempt.
|
---|
| 1792 | static void ResetConnectionIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1793 | {
|
---|
| 1794 | if (transport_data->xioTransport != NULL && transport_data->conn_attempted)
|
---|
| 1795 | {
|
---|
| 1796 | OPTIONHANDLER_HANDLE options = xio_retrieveoptions(transport_data->xioTransport);
|
---|
| 1797 | set_saved_tls_options(transport_data, options);
|
---|
| 1798 |
|
---|
| 1799 | xio_destroy(transport_data->xioTransport);
|
---|
| 1800 | transport_data->xioTransport = NULL;
|
---|
| 1801 | }
|
---|
| 1802 | }
|
---|
| 1803 |
|
---|
| 1804 | static void mqtt_disconnect_cb(void* ctx)
|
---|
| 1805 | {
|
---|
| 1806 | if (ctx != NULL)
|
---|
| 1807 | {
|
---|
| 1808 | int* disconn_recv = (int*)ctx;
|
---|
| 1809 | *disconn_recv = 1;
|
---|
| 1810 | }
|
---|
| 1811 | }
|
---|
| 1812 |
|
---|
| 1813 | static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1814 | {
|
---|
| 1815 | if (transport_data->currPacketState != DISCONNECT_TYPE)
|
---|
| 1816 | {
|
---|
| 1817 | if (!transport_data->isDestroyCalled)
|
---|
| 1818 | {
|
---|
| 1819 | OPTIONHANDLER_HANDLE options = xio_retrieveoptions(transport_data->xioTransport);
|
---|
| 1820 | set_saved_tls_options(transport_data, options);
|
---|
| 1821 | }
|
---|
| 1822 | // Ensure the disconnect message is sent
|
---|
| 1823 | if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTED)
|
---|
| 1824 | {
|
---|
| 1825 | transport_data->disconnect_recv_flag = 0;
|
---|
| 1826 | (void)mqtt_client_disconnect(transport_data->mqttClient, mqtt_disconnect_cb, &transport_data->disconnect_recv_flag);
|
---|
| 1827 | size_t disconnect_ctr = 0;
|
---|
| 1828 | do
|
---|
| 1829 | {
|
---|
| 1830 | mqtt_client_dowork(transport_data->mqttClient);
|
---|
| 1831 | disconnect_ctr++;
|
---|
| 1832 | ThreadAPI_Sleep(50);
|
---|
| 1833 | } while ((disconnect_ctr < MAX_DISCONNECT_VALUE) && (transport_data->disconnect_recv_flag == 0));
|
---|
| 1834 | }
|
---|
| 1835 | xio_destroy(transport_data->xioTransport);
|
---|
| 1836 | transport_data->xioTransport = NULL;
|
---|
| 1837 |
|
---|
| 1838 | transport_data->device_twin_get_sent = false;
|
---|
| 1839 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
|
---|
| 1840 | transport_data->currPacketState = DISCONNECT_TYPE;
|
---|
| 1841 | }
|
---|
| 1842 | }
|
---|
| 1843 |
|
---|
| 1844 | static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
|
---|
| 1845 | {
|
---|
| 1846 | (void)handle;
|
---|
| 1847 | if (callbackCtx != NULL)
|
---|
| 1848 | {
|
---|
| 1849 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
|
---|
| 1850 | switch (error)
|
---|
| 1851 | {
|
---|
| 1852 | case MQTT_CLIENT_CONNECTION_ERROR:
|
---|
| 1853 | {
|
---|
| 1854 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK, transport_data->transport_ctx);
|
---|
| 1855 | break;
|
---|
| 1856 | }
|
---|
| 1857 | case MQTT_CLIENT_COMMUNICATION_ERROR:
|
---|
| 1858 | {
|
---|
| 1859 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_COMMUNICATION_ERROR, transport_data->transport_ctx);
|
---|
| 1860 | break;
|
---|
| 1861 | }
|
---|
| 1862 | case MQTT_CLIENT_NO_PING_RESPONSE:
|
---|
| 1863 | {
|
---|
| 1864 | LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
|
---|
| 1865 | break;
|
---|
| 1866 | }
|
---|
| 1867 | case MQTT_CLIENT_PARSE_ERROR:
|
---|
| 1868 | case MQTT_CLIENT_MEMORY_ERROR:
|
---|
| 1869 | case MQTT_CLIENT_UNKNOWN_ERROR:
|
---|
| 1870 | {
|
---|
| 1871 | LogError("INTERNAL ERROR: unexpected error value received %s", MU_ENUM_TO_STRING(MQTT_CLIENT_EVENT_ERROR, error));
|
---|
| 1872 | break;
|
---|
| 1873 | }
|
---|
| 1874 | }
|
---|
| 1875 | if (transport_data->mqttClientStatus != MQTT_CLIENT_STATUS_PENDING_CLOSE)
|
---|
| 1876 | {
|
---|
| 1877 | // We have encountered an mqtt protocol error in an non-closing state
|
---|
| 1878 | // The best course of action is to execute a shutdown of the mqtt/tls/socket
|
---|
| 1879 | // layer and then attempt to reconnect
|
---|
| 1880 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_EXECUTE_DISCONNECT;
|
---|
| 1881 | }
|
---|
| 1882 | transport_data->currPacketState = PACKET_TYPE_ERROR;
|
---|
| 1883 | transport_data->device_twin_get_sent = false;
|
---|
| 1884 | if (transport_data->topic_MqttMessage != NULL)
|
---|
| 1885 | {
|
---|
| 1886 | transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
|
---|
| 1887 | }
|
---|
| 1888 | if (transport_data->topic_GetState != NULL)
|
---|
| 1889 | {
|
---|
| 1890 | transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
|
---|
| 1891 | }
|
---|
| 1892 | if (transport_data->topic_NotifyState != NULL)
|
---|
| 1893 | {
|
---|
| 1894 | transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
|
---|
| 1895 | }
|
---|
| 1896 | if (transport_data->topic_DeviceMethods != NULL)
|
---|
| 1897 | {
|
---|
| 1898 | transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
|
---|
| 1899 | }
|
---|
| 1900 | if (transport_data->topic_InputQueue != NULL)
|
---|
| 1901 | {
|
---|
| 1902 | transport_data->topics_ToSubscribe |= SUBSCRIBE_INPUT_QUEUE_TOPIC;
|
---|
| 1903 | }
|
---|
| 1904 | }
|
---|
| 1905 | else
|
---|
| 1906 | {
|
---|
| 1907 | LogError("Failure: mqtt called back with null context.");
|
---|
| 1908 | }
|
---|
| 1909 | }
|
---|
| 1910 |
|
---|
| 1911 | static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 1912 | {
|
---|
| 1913 | if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
|
---|
| 1914 | {
|
---|
| 1915 | uint32_t topic_subscription = 0;
|
---|
| 1916 | size_t subscribe_count = 0;
|
---|
| 1917 | uint16_t packet_id = get_next_packet_id(transport_data);
|
---|
| 1918 | SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
|
---|
| 1919 | if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
|
---|
| 1920 | {
|
---|
| 1921 | subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
|
---|
| 1922 | subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
|
---|
| 1923 | topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
|
---|
| 1924 | subscribe_count++;
|
---|
| 1925 | }
|
---|
| 1926 | if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
|
---|
| 1927 | {
|
---|
| 1928 | subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
|
---|
| 1929 | subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
|
---|
| 1930 | topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
|
---|
| 1931 | subscribe_count++;
|
---|
| 1932 | transport_data->twin_resp_packet_id = packet_id;
|
---|
| 1933 | }
|
---|
| 1934 | if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
|
---|
| 1935 | {
|
---|
| 1936 | subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
|
---|
| 1937 | subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
|
---|
| 1938 | topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
|
---|
| 1939 | subscribe_count++;
|
---|
| 1940 | }
|
---|
| 1941 | if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
|
---|
| 1942 | {
|
---|
| 1943 | subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
|
---|
| 1944 | subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
|
---|
| 1945 | topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
|
---|
| 1946 | subscribe_count++;
|
---|
| 1947 | }
|
---|
| 1948 | if ((transport_data->topic_InputQueue != NULL) && (SUBSCRIBE_INPUT_QUEUE_TOPIC & transport_data->topics_ToSubscribe))
|
---|
| 1949 | {
|
---|
| 1950 | subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_InputQueue);
|
---|
| 1951 | subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
|
---|
| 1952 | topic_subscription |= SUBSCRIBE_INPUT_QUEUE_TOPIC;
|
---|
| 1953 | subscribe_count++;
|
---|
| 1954 | }
|
---|
| 1955 |
|
---|
| 1956 | if (subscribe_count != 0)
|
---|
| 1957 | {
|
---|
| 1958 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransport_MQTT_Common_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
|
---|
| 1959 | if (mqtt_client_subscribe(transport_data->mqttClient, packet_id, subscribe, subscribe_count) != 0)
|
---|
| 1960 | {
|
---|
| 1961 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
|
---|
| 1962 | LogError("Failure: mqtt_client_subscribe returned error.");
|
---|
| 1963 | }
|
---|
| 1964 | else
|
---|
| 1965 | {
|
---|
| 1966 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
|
---|
| 1967 | transport_data->topics_ToSubscribe &= ~topic_subscription;
|
---|
| 1968 | transport_data->currPacketState = SUBSCRIBE_TYPE;
|
---|
| 1969 | }
|
---|
| 1970 | }
|
---|
| 1971 | else
|
---|
| 1972 | {
|
---|
| 1973 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
|
---|
| 1974 | LogError("Failure: subscribe_topic is empty.");
|
---|
| 1975 | }
|
---|
| 1976 | transport_data->currPacketState = SUBSCRIBE_TYPE;
|
---|
| 1977 | }
|
---|
| 1978 | else
|
---|
| 1979 | {
|
---|
| 1980 | transport_data->currPacketState = PUBLISH_TYPE;
|
---|
| 1981 | }
|
---|
| 1982 | }
|
---|
| 1983 |
|
---|
| 1984 | static bool RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, const unsigned char** payload, size_t* length)
|
---|
| 1985 | {
|
---|
| 1986 | bool result;
|
---|
| 1987 | IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
|
---|
| 1988 | if (contentType == IOTHUBMESSAGE_BYTEARRAY)
|
---|
| 1989 | {
|
---|
| 1990 | if (IoTHubMessage_GetByteArray(messageHandle, &(*payload), length) != IOTHUB_MESSAGE_OK)
|
---|
| 1991 | {
|
---|
| 1992 | LogError("Failure result from IoTHubMessage_GetByteArray");
|
---|
| 1993 | result = false;
|
---|
| 1994 | *length = 0;
|
---|
| 1995 | }
|
---|
| 1996 | else
|
---|
| 1997 | {
|
---|
| 1998 | result = true;
|
---|
| 1999 | }
|
---|
| 2000 | }
|
---|
| 2001 | else if (contentType == IOTHUBMESSAGE_STRING)
|
---|
| 2002 | {
|
---|
| 2003 | *payload = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
|
---|
| 2004 | if (*payload == NULL)
|
---|
| 2005 | {
|
---|
| 2006 | LogError("Failure result from IoTHubMessage_GetString");
|
---|
| 2007 | result = false;
|
---|
| 2008 | *length = 0;
|
---|
| 2009 | }
|
---|
| 2010 | else
|
---|
| 2011 | {
|
---|
| 2012 | *length = strlen((const char*)*payload);
|
---|
| 2013 | result = true;
|
---|
| 2014 | }
|
---|
| 2015 | }
|
---|
| 2016 | else
|
---|
| 2017 | {
|
---|
| 2018 | result = false;
|
---|
| 2019 | *length = 0;
|
---|
| 2020 | }
|
---|
| 2021 | return result;
|
---|
| 2022 | }
|
---|
| 2023 |
|
---|
| 2024 | static void process_queued_ack_messages(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 2025 | {
|
---|
| 2026 | PDLIST_ENTRY current_entry = transport_data->telemetry_waitingForAck.Flink;
|
---|
| 2027 | tickcounter_ms_t current_ms;
|
---|
| 2028 | (void)tickcounter_get_current_ms(transport_data->msgTickCounter, ¤t_ms);
|
---|
| 2029 | while (current_entry != &transport_data->telemetry_waitingForAck)
|
---|
| 2030 | {
|
---|
| 2031 | MQTT_MESSAGE_DETAILS_LIST* msg_detail_entry = containingRecord(current_entry, MQTT_MESSAGE_DETAILS_LIST, entry);
|
---|
| 2032 | DLIST_ENTRY nextListEntry;
|
---|
| 2033 | nextListEntry.Flink = current_entry->Flink;
|
---|
| 2034 |
|
---|
| 2035 | if (((current_ms - msg_detail_entry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
|
---|
| 2036 | {
|
---|
| 2037 | if (msg_detail_entry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
|
---|
| 2038 | {
|
---|
| 2039 | sendMsgComplete(msg_detail_entry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
|
---|
| 2040 | (void)DList_RemoveEntryList(current_entry);
|
---|
| 2041 | free(msg_detail_entry);
|
---|
| 2042 |
|
---|
| 2043 | DisconnectFromClient(transport_data);
|
---|
| 2044 | }
|
---|
| 2045 | else
|
---|
| 2046 | {
|
---|
| 2047 | // Ensure that the packet state is PUBLISH_TYPE and then attempt to send the message
|
---|
| 2048 | // again
|
---|
| 2049 | if (transport_data->currPacketState == PUBLISH_TYPE)
|
---|
| 2050 | {
|
---|
| 2051 | size_t messageLength;
|
---|
| 2052 | const unsigned char* messagePayload = NULL;
|
---|
| 2053 | if (!RetrieveMessagePayload(msg_detail_entry->iotHubMessageEntry->messageHandle, &messagePayload, &messageLength))
|
---|
| 2054 | {
|
---|
| 2055 | (void)DList_RemoveEntryList(current_entry);
|
---|
| 2056 | sendMsgComplete(msg_detail_entry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
|
---|
| 2057 | }
|
---|
| 2058 | else
|
---|
| 2059 | {
|
---|
| 2060 | if (publish_mqtt_telemetry_msg(transport_data, msg_detail_entry, messagePayload, messageLength) != 0)
|
---|
| 2061 | {
|
---|
| 2062 | (void)DList_RemoveEntryList(current_entry);
|
---|
| 2063 | sendMsgComplete(msg_detail_entry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
|
---|
| 2064 | free(msg_detail_entry);
|
---|
| 2065 | }
|
---|
| 2066 | }
|
---|
| 2067 | }
|
---|
| 2068 | else
|
---|
| 2069 | {
|
---|
| 2070 | msg_detail_entry->retryCount++;
|
---|
| 2071 | msg_detail_entry->msgPublishTime = current_ms;
|
---|
| 2072 | }
|
---|
| 2073 | }
|
---|
| 2074 | }
|
---|
| 2075 | current_entry = nextListEntry.Flink;
|
---|
| 2076 | }
|
---|
| 2077 | }
|
---|
| 2078 |
|
---|
| 2079 | static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 2080 | {
|
---|
| 2081 | int result;
|
---|
| 2082 |
|
---|
| 2083 | if (transport_data->xioTransport == NULL)
|
---|
| 2084 | {
|
---|
| 2085 | // construct address
|
---|
| 2086 | const char* hostAddress = STRING_c_str(transport_data->hostAddress);
|
---|
| 2087 | MQTT_TRANSPORT_PROXY_OPTIONS mqtt_proxy_options;
|
---|
| 2088 |
|
---|
| 2089 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_011: [ If no `proxy_data` option has been set, NULL shall be passed as the argument `mqtt_transport_proxy_options` when calling the function `get_io_transport` passed in `IoTHubTransport_MQTT_Common__Create`. ]*/
|
---|
| 2090 | mqtt_proxy_options.host_address = transport_data->http_proxy_hostname;
|
---|
| 2091 | mqtt_proxy_options.port = transport_data->http_proxy_port;
|
---|
| 2092 | mqtt_proxy_options.username = transport_data->http_proxy_username;
|
---|
| 2093 | mqtt_proxy_options.password = transport_data->http_proxy_password;
|
---|
| 2094 |
|
---|
| 2095 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_010: [ If the `proxy_data` option has been set, the proxy options shall be filled in the argument `mqtt_transport_proxy_options` when calling the function `get_io_transport` passed in `IoTHubTransport_MQTT_Common__Create` to obtain the underlying IO handle. ]*/
|
---|
| 2096 | transport_data->xioTransport = transport_data->get_io_transport(hostAddress, (transport_data->http_proxy_hostname == NULL) ? NULL : &mqtt_proxy_options);
|
---|
| 2097 | if (transport_data->xioTransport == NULL)
|
---|
| 2098 | {
|
---|
| 2099 | LogError("Unable to create the lower level TLS layer.");
|
---|
| 2100 | result = MU_FAILURE;
|
---|
| 2101 | }
|
---|
| 2102 | else
|
---|
| 2103 | {
|
---|
| 2104 | if (transport_data->saved_tls_options != NULL)
|
---|
| 2105 | {
|
---|
| 2106 | if (OptionHandler_FeedOptions(transport_data->saved_tls_options, transport_data->xioTransport) != OPTIONHANDLER_OK)
|
---|
| 2107 | {
|
---|
| 2108 | LogError("Failed feeding existing options to new TLS instance.");
|
---|
| 2109 | result = MU_FAILURE;
|
---|
| 2110 | }
|
---|
| 2111 | else
|
---|
| 2112 | {
|
---|
| 2113 | // The tlsio has the options, so our copy can be deleted
|
---|
| 2114 | set_saved_tls_options(transport_data, NULL);
|
---|
| 2115 | result = 0;
|
---|
| 2116 | }
|
---|
| 2117 | }
|
---|
| 2118 | else if (IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module) == IOTHUB_CREDENTIAL_TYPE_X509_ECC)
|
---|
| 2119 | {
|
---|
| 2120 | if (IoTHubClient_Auth_Set_xio_Certificate(transport_data->authorization_module, transport_data->xioTransport) != 0)
|
---|
| 2121 | {
|
---|
| 2122 | LogError("Unable to create the lower level TLS layer.");
|
---|
| 2123 | result = MU_FAILURE;
|
---|
| 2124 | }
|
---|
| 2125 | else
|
---|
| 2126 | {
|
---|
| 2127 | result = 0;
|
---|
| 2128 | }
|
---|
| 2129 | }
|
---|
| 2130 | else
|
---|
| 2131 | {
|
---|
| 2132 | result = 0;
|
---|
| 2133 | }
|
---|
| 2134 | }
|
---|
| 2135 | }
|
---|
| 2136 | else
|
---|
| 2137 | {
|
---|
| 2138 | result = 0;
|
---|
| 2139 | }
|
---|
| 2140 | return result;
|
---|
| 2141 | }
|
---|
| 2142 |
|
---|
| 2143 | static STRING_HANDLE buildClientId(const char* device_id, const char* module_id)
|
---|
| 2144 | {
|
---|
| 2145 | if (module_id == NULL)
|
---|
| 2146 | {
|
---|
| 2147 | return STRING_construct_sprintf("%s", device_id);
|
---|
| 2148 | }
|
---|
| 2149 | else
|
---|
| 2150 | {
|
---|
| 2151 | return STRING_construct_sprintf("%s/%s", device_id, module_id);
|
---|
| 2152 | }
|
---|
| 2153 | }
|
---|
| 2154 |
|
---|
| 2155 | static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 2156 | {
|
---|
| 2157 | int result;
|
---|
| 2158 |
|
---|
| 2159 | char* sasToken = NULL;
|
---|
| 2160 | result = 0;
|
---|
| 2161 |
|
---|
| 2162 | IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
|
---|
| 2163 | if (cred_type == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY || cred_type == IOTHUB_CREDENTIAL_TYPE_DEVICE_AUTH)
|
---|
| 2164 | {
|
---|
| 2165 | sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, STRING_c_str(transport_data->devicesAndModulesPath), 0, NULL);
|
---|
| 2166 | if (sasToken == NULL)
|
---|
| 2167 | {
|
---|
| 2168 | LogError("failure getting sas token from IoTHubClient_Auth_Get_SasToken.");
|
---|
| 2169 | result = MU_FAILURE;
|
---|
| 2170 | }
|
---|
| 2171 | }
|
---|
| 2172 | else if (cred_type == IOTHUB_CREDENTIAL_TYPE_SAS_TOKEN)
|
---|
| 2173 | {
|
---|
| 2174 | SAS_TOKEN_STATUS token_status = IoTHubClient_Auth_Is_SasToken_Valid(transport_data->authorization_module);
|
---|
| 2175 | if (token_status == SAS_TOKEN_STATUS_INVALID)
|
---|
| 2176 | {
|
---|
| 2177 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN, transport_data->transport_ctx);
|
---|
| 2178 | result = MU_FAILURE;
|
---|
| 2179 | }
|
---|
| 2180 | else if (token_status == SAS_TOKEN_STATUS_FAILED)
|
---|
| 2181 | {
|
---|
| 2182 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL, transport_data->transport_ctx);
|
---|
| 2183 | result = MU_FAILURE;
|
---|
| 2184 | }
|
---|
| 2185 | else
|
---|
| 2186 | {
|
---|
| 2187 | sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, NULL, 0, NULL);
|
---|
| 2188 | if (sasToken == NULL)
|
---|
| 2189 | {
|
---|
| 2190 | LogError("failure getting sas Token.");
|
---|
| 2191 | result = MU_FAILURE;
|
---|
| 2192 | }
|
---|
| 2193 | }
|
---|
| 2194 | }
|
---|
| 2195 |
|
---|
| 2196 | if (result == 0)
|
---|
| 2197 | {
|
---|
| 2198 | if (!transport_data->isProductInfoSet)
|
---|
| 2199 | {
|
---|
| 2200 | // This requires the iothubClientHandle, which sadly the MQTT transport only gets on DoWork, so this code still needs to remain here.
|
---|
| 2201 | // The correct place for this would be in the Create method, but we don't get the client handle there.
|
---|
| 2202 | // Also, when device multiplexing is used, the customer creates the transport directly and explicitly, when the client is still not created.
|
---|
| 2203 | // This will be a major hurdle when we add device multiplexing to MQTT transport.
|
---|
| 2204 |
|
---|
| 2205 | STRING_HANDLE clone;
|
---|
| 2206 | const char* product_info = transport_data->transport_callbacks.prod_info_cb(transport_data->transport_ctx);
|
---|
| 2207 | if (product_info == NULL)
|
---|
| 2208 | {
|
---|
| 2209 | clone = STRING_construct_sprintf("%s%%2F%s", CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
|
---|
| 2210 | }
|
---|
| 2211 | else
|
---|
| 2212 | {
|
---|
| 2213 | clone = URL_EncodeString(product_info);
|
---|
| 2214 | }
|
---|
| 2215 |
|
---|
| 2216 | if (clone == NULL)
|
---|
| 2217 | {
|
---|
| 2218 | LogError("Failed obtaining the product info");
|
---|
| 2219 | }
|
---|
| 2220 | else
|
---|
| 2221 | {
|
---|
| 2222 | if (STRING_concat_with_STRING(transport_data->configPassedThroughUsername, clone) != 0)
|
---|
| 2223 | {
|
---|
| 2224 | LogError("Failed concatenating the product info");
|
---|
| 2225 | }
|
---|
| 2226 | else
|
---|
| 2227 | {
|
---|
| 2228 | transport_data->isProductInfoSet = true;
|
---|
| 2229 | }
|
---|
| 2230 |
|
---|
| 2231 | STRING_delete(clone);
|
---|
| 2232 | }
|
---|
| 2233 | }
|
---|
| 2234 |
|
---|
| 2235 | STRING_HANDLE clientId;
|
---|
| 2236 |
|
---|
| 2237 | clientId = buildClientId(STRING_c_str(transport_data->device_id), STRING_c_str(transport_data->module_id));
|
---|
| 2238 | if (NULL == clientId)
|
---|
| 2239 | {
|
---|
| 2240 | LogError("Unable to allocate clientId");
|
---|
| 2241 | result = MU_FAILURE;
|
---|
| 2242 | }
|
---|
| 2243 | else
|
---|
| 2244 | {
|
---|
| 2245 | MQTT_CLIENT_OPTIONS options = { 0 };
|
---|
| 2246 | options.clientId = (char*)STRING_c_str(clientId);
|
---|
| 2247 | options.willMessage = NULL;
|
---|
| 2248 | options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
|
---|
| 2249 | if (sasToken != NULL)
|
---|
| 2250 | {
|
---|
| 2251 | options.password = sasToken;
|
---|
| 2252 | }
|
---|
| 2253 | options.keepAliveInterval = transport_data->keepAliveValue;
|
---|
| 2254 | options.useCleanSession = false;
|
---|
| 2255 | options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
|
---|
| 2256 |
|
---|
| 2257 | if (GetTransportProviderIfNecessary(transport_data) == 0)
|
---|
| 2258 | {
|
---|
| 2259 | transport_data->conn_attempted = true;
|
---|
| 2260 | if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
|
---|
| 2261 | {
|
---|
| 2262 | LogError("failure connecting to address %s.", STRING_c_str(transport_data->hostAddress));
|
---|
| 2263 | result = MU_FAILURE;
|
---|
| 2264 | }
|
---|
| 2265 | else
|
---|
| 2266 | {
|
---|
| 2267 | transport_data->currPacketState = CONNECT_TYPE;
|
---|
| 2268 | transport_data->isRetryExpiredCallbackSet = false;
|
---|
| 2269 | (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
|
---|
| 2270 | result = 0;
|
---|
| 2271 | }
|
---|
| 2272 | }
|
---|
| 2273 | else
|
---|
| 2274 | {
|
---|
| 2275 | result = MU_FAILURE;
|
---|
| 2276 | }
|
---|
| 2277 |
|
---|
| 2278 | if (sasToken != NULL)
|
---|
| 2279 | {
|
---|
| 2280 | free(sasToken);
|
---|
| 2281 | }
|
---|
| 2282 | STRING_delete(clientId);
|
---|
| 2283 | }
|
---|
| 2284 |
|
---|
| 2285 | }
|
---|
| 2286 | return result;
|
---|
| 2287 | }
|
---|
| 2288 |
|
---|
| 2289 | static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
|
---|
| 2290 | {
|
---|
| 2291 | int result = 0;
|
---|
| 2292 |
|
---|
| 2293 | // Make sure we're not destroying the object
|
---|
| 2294 | if (!transport_data->isDestroyCalled)
|
---|
| 2295 | {
|
---|
| 2296 | RETRY_ACTION retry_action = RETRY_ACTION_RETRY_LATER;
|
---|
| 2297 |
|
---|
| 2298 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_007: [ IoTHubTransport_MQTT_Common_DoWork shall try to reconnect according to the current retry policy set ]
|
---|
| 2299 | if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_NOT_CONNECTED && transport_data->isRecoverableError)
|
---|
| 2300 | {
|
---|
| 2301 | // Note: in case retry_control_should_retry fails, the reconnection shall be attempted anyway (defaulting to policy IOTHUB_CLIENT_RETRY_IMMEDIATE).
|
---|
| 2302 | if (retry_control_should_retry(transport_data->retry_control_handle, &retry_action) != 0 || retry_action == RETRY_ACTION_RETRY_NOW)
|
---|
| 2303 | {
|
---|
| 2304 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
|
---|
| 2305 | {
|
---|
| 2306 | transport_data->connectFailCount++;
|
---|
| 2307 | result = MU_FAILURE;
|
---|
| 2308 | }
|
---|
| 2309 | else
|
---|
| 2310 | {
|
---|
| 2311 | ResetConnectionIfNecessary(transport_data);
|
---|
| 2312 |
|
---|
| 2313 | if (SendMqttConnectMsg(transport_data) != 0)
|
---|
| 2314 | {
|
---|
| 2315 | transport_data->connectFailCount++;
|
---|
| 2316 | result = MU_FAILURE;
|
---|
| 2317 | }
|
---|
| 2318 | else
|
---|
| 2319 | {
|
---|
| 2320 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTING;
|
---|
| 2321 | transport_data->connectFailCount = 0;
|
---|
| 2322 | result = 0;
|
---|
| 2323 | }
|
---|
| 2324 | }
|
---|
| 2325 | }
|
---|
| 2326 | else if (retry_action == RETRY_ACTION_STOP_RETRYING)
|
---|
| 2327 | {
|
---|
| 2328 | // Set callback if retry expired
|
---|
| 2329 | if (!transport_data->isRetryExpiredCallbackSet)
|
---|
| 2330 | {
|
---|
| 2331 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_RETRY_EXPIRED, transport_data->transport_ctx);
|
---|
| 2332 | transport_data->isRetryExpiredCallbackSet = true;
|
---|
| 2333 | }
|
---|
| 2334 | result = MU_FAILURE;
|
---|
| 2335 | }
|
---|
| 2336 | else if (retry_action == RETRY_ACTION_RETRY_LATER)
|
---|
| 2337 | {
|
---|
| 2338 | result = MU_FAILURE;
|
---|
| 2339 | }
|
---|
| 2340 | }
|
---|
| 2341 | else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_EXECUTE_DISCONNECT)
|
---|
| 2342 | {
|
---|
| 2343 | // Need to disconnect from client
|
---|
| 2344 | DisconnectFromClient(transport_data);
|
---|
| 2345 | result = 0;
|
---|
| 2346 | }
|
---|
| 2347 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_001: [ IoTHubTransport_MQTT_Common_DoWork shall trigger reconnection if the mqtt_client_connect does not complete within `keepalive` seconds]
|
---|
| 2348 | else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTING)
|
---|
| 2349 | {
|
---|
| 2350 | tickcounter_ms_t current_time;
|
---|
| 2351 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, ¤t_time) != 0)
|
---|
| 2352 | {
|
---|
| 2353 | LogError("failed verifying MQTT_CLIENT_STATUS_CONNECTING timeout");
|
---|
| 2354 | result = MU_FAILURE;
|
---|
| 2355 | }
|
---|
| 2356 | else if ((current_time - transport_data->mqtt_connect_time) / 1000 > transport_data->connect_timeout_in_sec)
|
---|
| 2357 | {
|
---|
| 2358 | LogError("mqtt_client timed out waiting for CONNACK");
|
---|
| 2359 | transport_data->currPacketState = PACKET_TYPE_ERROR;
|
---|
| 2360 | DisconnectFromClient(transport_data);
|
---|
| 2361 | result = MU_FAILURE;
|
---|
| 2362 | }
|
---|
| 2363 | }
|
---|
| 2364 | else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTED)
|
---|
| 2365 | {
|
---|
| 2366 | // We are connected and not being closed, so does SAS need to reconnect?
|
---|
| 2367 | tickcounter_ms_t current_time;
|
---|
| 2368 | if (tickcounter_get_current_ms(transport_data->msgTickCounter, ¤t_time) != 0)
|
---|
| 2369 | {
|
---|
| 2370 | transport_data->connectFailCount++;
|
---|
| 2371 | result = MU_FAILURE;
|
---|
| 2372 | }
|
---|
| 2373 | else
|
---|
| 2374 | {
|
---|
| 2375 | IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
|
---|
| 2376 | // If the credential type is not an x509 certificate then we shall renew the Sas_Token
|
---|
| 2377 | if (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_X509_ECC)
|
---|
| 2378 | {
|
---|
| 2379 | size_t sas_token_expiry = IoTHubClient_Auth_Get_SasToken_Expiry(transport_data->authorization_module);
|
---|
| 2380 | if ((current_time - transport_data->mqtt_connect_time) / 1000 > (sas_token_expiry*SAS_REFRESH_MULTIPLIER))
|
---|
| 2381 | {
|
---|
| 2382 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_058: [ If the sas token has timed out IoTHubTransport_MQTT_Common_DoWork shall disconnect from the mqtt client and destroy the transport information and wait for reconnect. ] */
|
---|
| 2383 | DisconnectFromClient(transport_data);
|
---|
| 2384 |
|
---|
| 2385 | transport_data->transport_callbacks.connection_status_cb(IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN, transport_data->transport_ctx);
|
---|
| 2386 | transport_data->currPacketState = UNKNOWN_TYPE;
|
---|
| 2387 | if (transport_data->topic_MqttMessage != NULL)
|
---|
| 2388 | {
|
---|
| 2389 | transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
|
---|
| 2390 | }
|
---|
| 2391 | if (transport_data->topic_GetState != NULL)
|
---|
| 2392 | {
|
---|
| 2393 | transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
|
---|
| 2394 | }
|
---|
| 2395 | if (transport_data->topic_NotifyState != NULL)
|
---|
| 2396 | {
|
---|
| 2397 | transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
|
---|
| 2398 | }
|
---|
| 2399 | if (transport_data->topic_DeviceMethods != NULL)
|
---|
| 2400 | {
|
---|
| 2401 | transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
|
---|
| 2402 | }
|
---|
| 2403 | if (transport_data->topic_InputQueue != NULL)
|
---|
| 2404 | {
|
---|
| 2405 | transport_data->topics_ToSubscribe |= SUBSCRIBE_INPUT_QUEUE_TOPIC;
|
---|
| 2406 | }
|
---|
| 2407 | }
|
---|
| 2408 | }
|
---|
| 2409 | }
|
---|
| 2410 | }
|
---|
| 2411 | }
|
---|
| 2412 | return result;
|
---|
| 2413 | }
|
---|
| 2414 |
|
---|
| 2415 | static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig, const char* moduleId)
|
---|
| 2416 | {
|
---|
| 2417 | if (moduleId == NULL)
|
---|
| 2418 | {
|
---|
| 2419 | return STRING_construct_sprintf("%s.%s/%s/?api-version=%s&DeviceClientType=", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, IOTHUB_API_VERSION);
|
---|
| 2420 | }
|
---|
| 2421 | else
|
---|
| 2422 | {
|
---|
| 2423 | return STRING_construct_sprintf("%s.%s/%s/%s/?api-version=%s&DeviceClientType=", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, moduleId, IOTHUB_API_VERSION);
|
---|
| 2424 | }
|
---|
| 2425 | }
|
---|
| 2426 |
|
---|
| 2427 | static STRING_HANDLE buildMqttEventString(const char* device_id, const char* module_id)
|
---|
| 2428 | {
|
---|
| 2429 | if (module_id == NULL)
|
---|
| 2430 | {
|
---|
| 2431 | return STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, device_id);
|
---|
| 2432 | }
|
---|
| 2433 | else
|
---|
| 2434 | {
|
---|
| 2435 | return STRING_construct_sprintf(TOPIC_DEVICE_DEVICE_MODULE, device_id, module_id);
|
---|
| 2436 | }
|
---|
| 2437 | }
|
---|
| 2438 |
|
---|
| 2439 | static STRING_HANDLE buildDevicesAndModulesPath(const IOTHUB_CLIENT_CONFIG* upperConfig, const char* moduleId)
|
---|
| 2440 | {
|
---|
| 2441 | if (moduleId == NULL)
|
---|
| 2442 | {
|
---|
| 2443 | return STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId);
|
---|
| 2444 | }
|
---|
| 2445 | else
|
---|
| 2446 | {
|
---|
| 2447 | return STRING_construct_sprintf("%s.%s/devices/%s/modules/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, moduleId);
|
---|
| 2448 | }
|
---|
| 2449 | }
|
---|
| 2450 |
|
---|
| 2451 | static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend, IOTHUB_AUTHORIZATION_HANDLE auth_module, const char* moduleId)
|
---|
| 2452 | {
|
---|
| 2453 | PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
|
---|
| 2454 | if (state == NULL)
|
---|
| 2455 | {
|
---|
| 2456 | LogError("Could not create MQTT transport state. Memory allocation failed.");
|
---|
| 2457 | }
|
---|
| 2458 | else
|
---|
| 2459 | {
|
---|
| 2460 | memset(state, 0, sizeof(MQTTTRANSPORT_HANDLE_DATA));
|
---|
| 2461 | if ((state->msgTickCounter = tickcounter_create()) == NULL)
|
---|
| 2462 | {
|
---|
| 2463 | LogError("Invalid Argument: iotHubName is empty");
|
---|
| 2464 | free_transport_handle_data(state);
|
---|
| 2465 | state = NULL;
|
---|
| 2466 | }
|
---|
| 2467 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_005: [ MQTT transport shall use EXPONENTIAL_WITH_BACK_OFF as default retry policy ]
|
---|
| 2468 | else if ((state->retry_control_handle = retry_control_create(DEFAULT_RETRY_POLICY, DEFAULT_RETRY_TIMEOUT_IN_SECONDS)) == NULL)
|
---|
| 2469 | {
|
---|
| 2470 | LogError("Failed creating default retry control");
|
---|
| 2471 | free_transport_handle_data(state);
|
---|
| 2472 | state = NULL;
|
---|
| 2473 | }
|
---|
| 2474 | else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
|
---|
| 2475 | {
|
---|
| 2476 | LogError("failure constructing device_id.");
|
---|
| 2477 | free_transport_handle_data(state);
|
---|
| 2478 | state = NULL;
|
---|
| 2479 | }
|
---|
| 2480 | else if ((moduleId != NULL) && ((state->module_id = STRING_construct(moduleId)) == NULL))
|
---|
| 2481 | {
|
---|
| 2482 | LogError("failure constructing module_id.");
|
---|
| 2483 | free_transport_handle_data(state);
|
---|
| 2484 | state = NULL;
|
---|
| 2485 | }
|
---|
| 2486 | else if ((state->devicesAndModulesPath = buildDevicesAndModulesPath(upperConfig, moduleId)) == NULL)
|
---|
| 2487 | {
|
---|
| 2488 | LogError("failure constructing devicesPath.");
|
---|
| 2489 | free_transport_handle_data(state);
|
---|
| 2490 | state = NULL;
|
---|
| 2491 | }
|
---|
| 2492 | else
|
---|
| 2493 | {
|
---|
| 2494 | if ((state->topic_MqttEvent = buildMqttEventString(upperConfig->deviceId, moduleId)) == NULL)
|
---|
| 2495 | {
|
---|
| 2496 | LogError("Could not create topic_MqttEvent for MQTT");
|
---|
| 2497 | free_transport_handle_data(state);
|
---|
| 2498 | state = NULL;
|
---|
| 2499 | }
|
---|
| 2500 | else
|
---|
| 2501 | {
|
---|
| 2502 | state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
|
---|
| 2503 | if (state->mqttClient == NULL)
|
---|
| 2504 | {
|
---|
| 2505 | LogError("failure initializing mqtt client.");
|
---|
| 2506 | free_transport_handle_data(state);
|
---|
| 2507 | state = NULL;
|
---|
| 2508 | }
|
---|
| 2509 | else
|
---|
| 2510 | {
|
---|
| 2511 | /* 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.] */
|
---|
| 2512 | if (upperConfig->protocolGatewayHostName == NULL)
|
---|
| 2513 | {
|
---|
| 2514 | state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
|
---|
| 2515 | }
|
---|
| 2516 | else
|
---|
| 2517 | {
|
---|
| 2518 | state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
|
---|
| 2519 | }
|
---|
| 2520 |
|
---|
| 2521 | if (state->hostAddress == NULL)
|
---|
| 2522 | {
|
---|
| 2523 | LogError("failure constructing host address.");
|
---|
| 2524 | free_transport_handle_data(state);
|
---|
| 2525 | state = NULL;
|
---|
| 2526 | }
|
---|
| 2527 | else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig, moduleId)) == NULL)
|
---|
| 2528 | {
|
---|
| 2529 | free_transport_handle_data(state);
|
---|
| 2530 | state = NULL;
|
---|
| 2531 | }
|
---|
| 2532 | else
|
---|
| 2533 | {
|
---|
| 2534 | /* 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.] */
|
---|
| 2535 | DList_InitializeListHead(&(state->telemetry_waitingForAck));
|
---|
| 2536 | DList_InitializeListHead(&(state->ack_waiting_queue));
|
---|
| 2537 | DList_InitializeListHead(&(state->pending_get_twin_queue));
|
---|
| 2538 | state->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
|
---|
| 2539 | state->isRecoverableError = true;
|
---|
| 2540 | state->packetId = 1;
|
---|
| 2541 | state->waitingToSend = waitingToSend;
|
---|
| 2542 | state->currPacketState = CONNECT_TYPE;
|
---|
| 2543 | state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
|
---|
| 2544 | state->connect_timeout_in_sec = DEFAULT_CONNACK_TIMEOUT;
|
---|
| 2545 | state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
|
---|
| 2546 | srand((unsigned int)get_time(NULL));
|
---|
| 2547 | state->authorization_module = auth_module;
|
---|
| 2548 |
|
---|
| 2549 | state->isDestroyCalled = false;
|
---|
| 2550 | state->isRetryExpiredCallbackSet = false;
|
---|
| 2551 | state->isRegistered = false;
|
---|
| 2552 | state->device_twin_get_sent = false;
|
---|
| 2553 | state->xioTransport = NULL;
|
---|
| 2554 | state->portNum = 0;
|
---|
| 2555 | state->connectFailCount = 0;
|
---|
| 2556 | state->connectTick = 0;
|
---|
| 2557 | state->topic_MqttMessage = NULL;
|
---|
| 2558 | state->topic_GetState = NULL;
|
---|
| 2559 | state->topic_NotifyState = NULL;
|
---|
| 2560 | state->topic_DeviceMethods = NULL;
|
---|
| 2561 | state->topic_InputQueue = NULL;
|
---|
| 2562 | state->log_trace = state->raw_trace = false;
|
---|
| 2563 | state->isProductInfoSet = false;
|
---|
| 2564 | state->auto_url_encode_decode = false;
|
---|
| 2565 | state->conn_attempted = false;
|
---|
| 2566 | }
|
---|
| 2567 | }
|
---|
| 2568 | }
|
---|
| 2569 | }
|
---|
| 2570 | }
|
---|
| 2571 | return state;
|
---|
| 2572 | }
|
---|
| 2573 |
|
---|
| 2574 | TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport, TRANSPORT_CALLBACKS_INFO* cb_info, void* ctx)
|
---|
| 2575 | {
|
---|
| 2576 | PMQTTTRANSPORT_HANDLE_DATA result;
|
---|
| 2577 | size_t deviceIdSize;
|
---|
| 2578 |
|
---|
| 2579 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
|
---|
| 2580 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ if get_io_transport is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL. ] */
|
---|
| 2581 | if (config == NULL || get_io_transport == NULL || cb_info == NULL)
|
---|
| 2582 | {
|
---|
| 2583 | LogError("Invalid Argument config: %p, get_io_transport: %p, cb_info: %p", config, get_io_transport, cb_info);
|
---|
| 2584 | result = NULL;
|
---|
| 2585 | }
|
---|
| 2586 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig, auth_module_handle or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
|
---|
| 2587 | else if (config->auth_module_handle == NULL)
|
---|
| 2588 | {
|
---|
| 2589 | LogError("Invalid Argument: auth_module_handle is NULL)");
|
---|
| 2590 | result = NULL;
|
---|
| 2591 | }
|
---|
| 2592 | /* 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.] */
|
---|
| 2593 | /* 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.] */
|
---|
| 2594 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
|
---|
| 2595 | else if (config->upperConfig == NULL ||
|
---|
| 2596 | config->upperConfig->protocol == NULL ||
|
---|
| 2597 | config->upperConfig->deviceId == NULL ||
|
---|
| 2598 | ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
|
---|
| 2599 | config->upperConfig->iotHubName == NULL ||
|
---|
| 2600 | config->upperConfig->iotHubSuffix == NULL)
|
---|
| 2601 | {
|
---|
| 2602 | LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
|
---|
| 2603 | result = NULL;
|
---|
| 2604 | }
|
---|
| 2605 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig, auth_module_handle or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
|
---|
| 2606 | else if (config->waitingToSend == NULL)
|
---|
| 2607 | {
|
---|
| 2608 | LogError("Invalid Argument: waitingToSend is NULL)");
|
---|
| 2609 | result = NULL;
|
---|
| 2610 | }
|
---|
| 2611 | /* 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.] */
|
---|
| 2612 | else if (((deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0))
|
---|
| 2613 | {
|
---|
| 2614 | LogError("Invalid Argument: DeviceId is of an invalid size");
|
---|
| 2615 | result = NULL;
|
---|
| 2616 | }
|
---|
| 2617 | /* 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.] */
|
---|
| 2618 | else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
|
---|
| 2619 | {
|
---|
| 2620 | LogError("Invalid Argument: deviceKey is empty");
|
---|
| 2621 | result = NULL;
|
---|
| 2622 | }
|
---|
| 2623 | /* 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.] */
|
---|
| 2624 | else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
|
---|
| 2625 | {
|
---|
| 2626 | LogError("Invalid Argument: deviceSasToken is empty");
|
---|
| 2627 | result = NULL;
|
---|
| 2628 | }
|
---|
| 2629 | /* 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.] */
|
---|
| 2630 | else if (strlen(config->upperConfig->iotHubName) == 0)
|
---|
| 2631 | {
|
---|
| 2632 | LogError("Invalid Argument: iotHubName is empty");
|
---|
| 2633 | result = NULL;
|
---|
| 2634 | }
|
---|
| 2635 | else if (IoTHub_Transport_ValidateCallbacks(cb_info) != 0)
|
---|
| 2636 | {
|
---|
| 2637 | LogError("failure checking transport callbacks");
|
---|
| 2638 | result = NULL;
|
---|
| 2639 | }
|
---|
| 2640 | else
|
---|
| 2641 | {
|
---|
| 2642 | result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend, config->auth_module_handle, config->moduleId);
|
---|
| 2643 | if (result != NULL)
|
---|
| 2644 | {
|
---|
| 2645 | result->get_io_transport = get_io_transport;
|
---|
| 2646 | result->http_proxy_hostname = NULL;
|
---|
| 2647 | result->http_proxy_username = NULL;
|
---|
| 2648 | result->http_proxy_password = NULL;
|
---|
| 2649 |
|
---|
| 2650 | result->transport_ctx = ctx;
|
---|
| 2651 | memcpy(&result->transport_callbacks, cb_info, sizeof(TRANSPORT_CALLBACKS_INFO));
|
---|
| 2652 | }
|
---|
| 2653 | }
|
---|
| 2654 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
|
---|
| 2655 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
|
---|
| 2656 | return result;
|
---|
| 2657 | }
|
---|
| 2658 |
|
---|
| 2659 | void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
|
---|
| 2660 | {
|
---|
| 2661 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
|
---|
| 2662 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2663 | if (transport_data != NULL)
|
---|
| 2664 | {
|
---|
| 2665 | transport_data->isDestroyCalled = true;
|
---|
| 2666 |
|
---|
| 2667 | DisconnectFromClient(transport_data);
|
---|
| 2668 |
|
---|
| 2669 | //Empty the Waiting for Ack Messages.
|
---|
| 2670 | while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
|
---|
| 2671 | {
|
---|
| 2672 | PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
|
---|
| 2673 | MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
|
---|
| 2674 | sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
|
---|
| 2675 | free(mqttMsgEntry);
|
---|
| 2676 | }
|
---|
| 2677 | while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
|
---|
| 2678 | {
|
---|
| 2679 | PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
|
---|
| 2680 | MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 2681 |
|
---|
| 2682 | if (mqtt_device_twin->userCallback == NULL)
|
---|
| 2683 | {
|
---|
| 2684 | transport_data->transport_callbacks.twin_rpt_state_complete_cb(mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE, transport_data->transport_ctx);
|
---|
| 2685 | }
|
---|
| 2686 | else
|
---|
| 2687 | {
|
---|
| 2688 | mqtt_device_twin->userCallback(DEVICE_TWIN_UPDATE_COMPLETE, NULL, 0, mqtt_device_twin->userContext);
|
---|
| 2689 | }
|
---|
| 2690 |
|
---|
| 2691 | destroy_device_twin_get_message(mqtt_device_twin);
|
---|
| 2692 | }
|
---|
| 2693 | while (!DList_IsListEmpty(&transport_data->pending_get_twin_queue))
|
---|
| 2694 | {
|
---|
| 2695 | PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->pending_get_twin_queue);
|
---|
| 2696 |
|
---|
| 2697 | MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
|
---|
| 2698 |
|
---|
| 2699 | mqtt_device_twin->userCallback(DEVICE_TWIN_UPDATE_COMPLETE, NULL, 0, mqtt_device_twin->userContext);
|
---|
| 2700 |
|
---|
| 2701 | destroy_device_twin_get_message(mqtt_device_twin);
|
---|
| 2702 | }
|
---|
| 2703 |
|
---|
| 2704 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
|
---|
| 2705 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_012: [ `IoTHubTransport_MQTT_Common_Destroy` shall free the stored proxy options. ]*/
|
---|
| 2706 | free_transport_handle_data(transport_data);
|
---|
| 2707 | }
|
---|
| 2708 | }
|
---|
| 2709 |
|
---|
| 2710 | int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(TRANSPORT_LL_HANDLE handle)
|
---|
| 2711 | {
|
---|
| 2712 | int result;
|
---|
| 2713 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2714 | if (transport_data == NULL)
|
---|
| 2715 | {
|
---|
| 2716 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_042: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
|
---|
| 2717 | LogError("Invalid handle parameter. NULL.");
|
---|
| 2718 | result = MU_FAILURE;
|
---|
| 2719 | }
|
---|
| 2720 | else
|
---|
| 2721 | {
|
---|
| 2722 | if (transport_data->topic_GetState == NULL)
|
---|
| 2723 | {
|
---|
| 2724 | /* 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.] */
|
---|
| 2725 | transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
|
---|
| 2726 | if (transport_data->topic_GetState == NULL)
|
---|
| 2727 | {
|
---|
| 2728 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
|
---|
| 2729 | LogError("Failure: unable constructing reported state topic");
|
---|
| 2730 | result = MU_FAILURE;
|
---|
| 2731 | }
|
---|
| 2732 | else
|
---|
| 2733 | {
|
---|
| 2734 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
|
---|
| 2735 | transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
|
---|
| 2736 | result = 0;
|
---|
| 2737 | }
|
---|
| 2738 | }
|
---|
| 2739 | else
|
---|
| 2740 | {
|
---|
| 2741 | result = 0;
|
---|
| 2742 | }
|
---|
| 2743 | if (result == 0)
|
---|
| 2744 | {
|
---|
| 2745 | changeStateToSubscribeIfAllowed(transport_data);
|
---|
| 2746 | }
|
---|
| 2747 | }
|
---|
| 2748 | return result;
|
---|
| 2749 | }
|
---|
| 2750 |
|
---|
| 2751 | void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(TRANSPORT_LL_HANDLE handle)
|
---|
| 2752 | {
|
---|
| 2753 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2754 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_048: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall do nothing.] */
|
---|
| 2755 | if (transport_data != NULL)
|
---|
| 2756 | {
|
---|
| 2757 | if (transport_data->topic_GetState != NULL)
|
---|
| 2758 | {
|
---|
| 2759 | /* 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.] */
|
---|
| 2760 | transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
|
---|
| 2761 | STRING_delete(transport_data->topic_GetState);
|
---|
| 2762 | transport_data->topic_GetState = NULL;
|
---|
| 2763 | }
|
---|
| 2764 | if (transport_data->topic_NotifyState != NULL)
|
---|
| 2765 | {
|
---|
| 2766 | /* 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.] */
|
---|
| 2767 | transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
|
---|
| 2768 | STRING_delete(transport_data->topic_NotifyState);
|
---|
| 2769 | transport_data->topic_NotifyState = NULL;
|
---|
| 2770 | }
|
---|
| 2771 | }
|
---|
| 2772 | else
|
---|
| 2773 | {
|
---|
| 2774 | LogError("Invalid argument to unsubscribe (handle is NULL).");
|
---|
| 2775 | }
|
---|
| 2776 | }
|
---|
| 2777 |
|
---|
| 2778 | IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetTwinAsync(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK completionCallback, void* callbackContext)
|
---|
| 2779 | {
|
---|
| 2780 | IOTHUB_CLIENT_RESULT result;
|
---|
| 2781 |
|
---|
| 2782 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_09_001: [ If `handle` or `completionCallback` are `NULL` than `IoTHubTransport_MQTT_Common_GetTwinAsync` shall return IOTHUB_CLIENT_INVALID_ARG. ]
|
---|
| 2783 | if (handle == NULL || completionCallback == NULL)
|
---|
| 2784 | {
|
---|
| 2785 | LogError("Invalid argument (handle=%p, completionCallback=%p)", handle, completionCallback);
|
---|
| 2786 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 2787 | }
|
---|
| 2788 | else
|
---|
| 2789 | {
|
---|
| 2790 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2791 | MQTT_DEVICE_TWIN_ITEM* mqtt_info;
|
---|
| 2792 |
|
---|
| 2793 | if ((mqtt_info = create_device_twin_get_message(transport_data)) == NULL)
|
---|
| 2794 | {
|
---|
| 2795 | LogError("Failed creating the device twin get request message");
|
---|
| 2796 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_09_003: [ If any failure occurs, IoTHubTransport_MQTT_Common_GetTwinAsync shall return IOTHUB_CLIENT_ERROR ]
|
---|
| 2797 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 2798 | }
|
---|
| 2799 | else if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgEnqueueTime) != 0)
|
---|
| 2800 | {
|
---|
| 2801 | LogError("Failed setting the get twin request enqueue time");
|
---|
| 2802 | destroy_device_twin_get_message(mqtt_info);
|
---|
| 2803 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_09_003: [ If any failure occurs, IoTHubTransport_MQTT_Common_GetTwinAsync shall return IOTHUB_CLIENT_ERROR ]
|
---|
| 2804 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 2805 | }
|
---|
| 2806 | else
|
---|
| 2807 | {
|
---|
| 2808 | mqtt_info->userCallback = completionCallback;
|
---|
| 2809 | mqtt_info->userContext = callbackContext;
|
---|
| 2810 |
|
---|
| 2811 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_09_002: [ The request shall be queued to be sent when the transport is connected, through DoWork ]
|
---|
| 2812 | DList_InsertTailList(&transport_data->pending_get_twin_queue, &mqtt_info->entry);
|
---|
| 2813 |
|
---|
| 2814 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_09_004: [ If no failure occurs, IoTHubTransport_MQTT_Common_GetTwinAsync shall return IOTHUB_CLIENT_OK ]
|
---|
| 2815 | result = IOTHUB_CLIENT_OK;
|
---|
| 2816 | }
|
---|
| 2817 | }
|
---|
| 2818 |
|
---|
| 2819 | return result;
|
---|
| 2820 | }
|
---|
| 2821 |
|
---|
| 2822 | int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
|
---|
| 2823 | {
|
---|
| 2824 | int result;
|
---|
| 2825 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2826 |
|
---|
| 2827 | if (transport_data == NULL)
|
---|
| 2828 | {
|
---|
| 2829 | /*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.]*/
|
---|
| 2830 | LogError("Invalid handle parameter. NULL.");
|
---|
| 2831 | result = MU_FAILURE;
|
---|
| 2832 | }
|
---|
| 2833 | else
|
---|
| 2834 | {
|
---|
| 2835 | if (transport_data->topic_DeviceMethods == NULL)
|
---|
| 2836 | {
|
---|
| 2837 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
|
---|
| 2838 | transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
|
---|
| 2839 | if (transport_data->topic_DeviceMethods == NULL)
|
---|
| 2840 | {
|
---|
| 2841 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
|
---|
| 2842 | LogError("Failure: unable constructing device method subscribe topic");
|
---|
| 2843 | result = MU_FAILURE;
|
---|
| 2844 | }
|
---|
| 2845 | else
|
---|
| 2846 | {
|
---|
| 2847 | /*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. ]*/
|
---|
| 2848 | transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
|
---|
| 2849 | result = 0;
|
---|
| 2850 | }
|
---|
| 2851 | }
|
---|
| 2852 | else
|
---|
| 2853 | {
|
---|
| 2854 | /*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.]*/
|
---|
| 2855 | result = 0;
|
---|
| 2856 | }
|
---|
| 2857 |
|
---|
| 2858 | if (result == 0)
|
---|
| 2859 | {
|
---|
| 2860 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
|
---|
| 2861 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
|
---|
| 2862 | changeStateToSubscribeIfAllowed(transport_data);
|
---|
| 2863 | }
|
---|
| 2864 | }
|
---|
| 2865 | return result;
|
---|
| 2866 | }
|
---|
| 2867 |
|
---|
| 2868 | void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(TRANSPORT_LL_HANDLE handle)
|
---|
| 2869 | {
|
---|
| 2870 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2871 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_008 : [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall do nothing and return.]*/
|
---|
| 2872 | if (transport_data != NULL)
|
---|
| 2873 | {
|
---|
| 2874 | /*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.]*/
|
---|
| 2875 | if (transport_data->topic_DeviceMethods != NULL)
|
---|
| 2876 | {
|
---|
| 2877 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
|
---|
| 2878 | const char* unsubscribe[1];
|
---|
| 2879 | unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
|
---|
| 2880 |
|
---|
| 2881 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
|
---|
| 2882 | if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
|
---|
| 2883 | {
|
---|
| 2884 | LogError("Failure calling mqtt_client_unsubscribe");
|
---|
| 2885 | }
|
---|
| 2886 |
|
---|
| 2887 | /*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. ]*/
|
---|
| 2888 | STRING_delete(transport_data->topic_DeviceMethods);
|
---|
| 2889 | transport_data->topic_DeviceMethods = NULL;
|
---|
| 2890 | transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
|
---|
| 2891 | }
|
---|
| 2892 | }
|
---|
| 2893 | else
|
---|
| 2894 | {
|
---|
| 2895 | LogError("Invalid argument to unsubscribe (NULL).");
|
---|
| 2896 | }
|
---|
| 2897 | }
|
---|
| 2898 |
|
---|
| 2899 | int IoTHubTransport_MQTT_Common_DeviceMethod_Response(TRANSPORT_LL_HANDLE handle, METHOD_HANDLE methodId, const unsigned char* response, size_t respSize, int status)
|
---|
| 2900 | {
|
---|
| 2901 | int result;
|
---|
| 2902 | MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
|
---|
| 2903 | if (transport_data != NULL)
|
---|
| 2904 | {
|
---|
| 2905 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_042: [ IoTHubTransport_MQTT_Common_DeviceMethod_Response shall publish an mqtt message for the device method response. ] */
|
---|
| 2906 | DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
|
---|
| 2907 | if (dev_method_info == NULL)
|
---|
| 2908 | {
|
---|
| 2909 | LogError("Failure: DEVICE_METHOD_INFO was NULL");
|
---|
| 2910 | result = MU_FAILURE;
|
---|
| 2911 | }
|
---|
| 2912 | else
|
---|
| 2913 | {
|
---|
| 2914 | if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
|
---|
| 2915 | {
|
---|
| 2916 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_051: [ If any error is encountered, IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
|
---|
| 2917 | LogError("Failure: publishing device method response");
|
---|
| 2918 | result = MU_FAILURE;
|
---|
| 2919 | }
|
---|
| 2920 | else
|
---|
| 2921 | {
|
---|
| 2922 | result = 0;
|
---|
| 2923 | }
|
---|
| 2924 | STRING_delete(dev_method_info->request_id);
|
---|
| 2925 | free(dev_method_info);
|
---|
| 2926 | }
|
---|
| 2927 | }
|
---|
| 2928 | else
|
---|
| 2929 | {
|
---|
| 2930 | /* 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. ] */
|
---|
| 2931 | result = MU_FAILURE;
|
---|
| 2932 | LogError("Failure: invalid TRANSPORT_LL_HANDLE parameter specified");
|
---|
| 2933 | }
|
---|
| 2934 | return result;
|
---|
| 2935 | }
|
---|
| 2936 |
|
---|
| 2937 | static STRING_HANDLE buildTopicMqttMessage(const char* device_id, const char* module_id)
|
---|
| 2938 | {
|
---|
| 2939 | if (module_id == NULL)
|
---|
| 2940 | {
|
---|
| 2941 | return STRING_construct_sprintf(TOPIC_DEVICE_MSG, device_id);
|
---|
| 2942 | }
|
---|
| 2943 | else
|
---|
| 2944 | {
|
---|
| 2945 | return STRING_construct_sprintf(TOPIC_DEVICE_MODULE_MSG, device_id, module_id);
|
---|
| 2946 | }
|
---|
| 2947 | }
|
---|
| 2948 |
|
---|
| 2949 | int IoTHubTransport_MQTT_Common_Subscribe(TRANSPORT_LL_HANDLE handle)
|
---|
| 2950 | {
|
---|
| 2951 | int result;
|
---|
| 2952 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2953 | if (transport_data == NULL)
|
---|
| 2954 | {
|
---|
| 2955 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
|
---|
| 2956 | LogError("Invalid handle parameter. NULL.");
|
---|
| 2957 | result = MU_FAILURE;
|
---|
| 2958 | }
|
---|
| 2959 | else
|
---|
| 2960 | {
|
---|
| 2961 | /* 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.] */
|
---|
| 2962 | transport_data->topic_MqttMessage = buildTopicMqttMessage(STRING_c_str(transport_data->device_id), STRING_c_str(transport_data->module_id));
|
---|
| 2963 | if (transport_data->topic_MqttMessage == NULL)
|
---|
| 2964 | {
|
---|
| 2965 | LogError("Failure constructing Message Topic");
|
---|
| 2966 | result = MU_FAILURE;
|
---|
| 2967 | }
|
---|
| 2968 | else
|
---|
| 2969 | {
|
---|
| 2970 | transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
|
---|
| 2971 | /* 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.]*/
|
---|
| 2972 | changeStateToSubscribeIfAllowed(transport_data);
|
---|
| 2973 | result = 0;
|
---|
| 2974 | }
|
---|
| 2975 | }
|
---|
| 2976 | return result;
|
---|
| 2977 | }
|
---|
| 2978 |
|
---|
| 2979 | void IoTHubTransport_MQTT_Common_Unsubscribe(TRANSPORT_LL_HANDLE handle)
|
---|
| 2980 | {
|
---|
| 2981 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 2982 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
|
---|
| 2983 | if (transport_data != NULL)
|
---|
| 2984 | {
|
---|
| 2985 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransport_MQTT_Common_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
|
---|
| 2986 | const char* unsubscribe[1];
|
---|
| 2987 | unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
|
---|
| 2988 | if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
|
---|
| 2989 | {
|
---|
| 2990 | LogError("Failure calling mqtt_client_unsubscribe");
|
---|
| 2991 | }
|
---|
| 2992 | STRING_delete(transport_data->topic_MqttMessage);
|
---|
| 2993 | transport_data->topic_MqttMessage = NULL;
|
---|
| 2994 | transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
|
---|
| 2995 | }
|
---|
| 2996 | else
|
---|
| 2997 | {
|
---|
| 2998 | LogError("Invalid argument to unsubscribe (NULL).");
|
---|
| 2999 | }
|
---|
| 3000 | }
|
---|
| 3001 |
|
---|
| 3002 | IOTHUB_PROCESS_ITEM_RESULT IoTHubTransport_MQTT_Common_ProcessItem(TRANSPORT_LL_HANDLE handle, IOTHUB_IDENTITY_TYPE item_type, IOTHUB_IDENTITY_INFO* iothub_item)
|
---|
| 3003 | {
|
---|
| 3004 | IOTHUB_PROCESS_ITEM_RESULT result;
|
---|
| 3005 | /* Codes_SRS_IOTHUBCLIENT_LL_07_001: [ If handle or iothub_item are NULL then IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
|
---|
| 3006 | if (handle == NULL || iothub_item == NULL)
|
---|
| 3007 | {
|
---|
| 3008 | LogError("Invalid handle parameter iothub_item=%p", iothub_item);
|
---|
| 3009 | result = IOTHUB_PROCESS_ERROR;
|
---|
| 3010 | }
|
---|
| 3011 | else
|
---|
| 3012 | {
|
---|
| 3013 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 3014 |
|
---|
| 3015 | if (transport_data->currPacketState == PUBLISH_TYPE)
|
---|
| 3016 | {
|
---|
| 3017 | // Ensure the reported property suback has been received
|
---|
| 3018 | if (item_type == IOTHUB_TYPE_DEVICE_TWIN && transport_data->twin_resp_sub_recv)
|
---|
| 3019 | {
|
---|
| 3020 | MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
|
---|
| 3021 | if (mqtt_info == NULL)
|
---|
| 3022 | {
|
---|
| 3023 | /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
|
---|
| 3024 | result = IOTHUB_PROCESS_ERROR;
|
---|
| 3025 | }
|
---|
| 3026 | else
|
---|
| 3027 | {
|
---|
| 3028 | /*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.]*/
|
---|
| 3029 | mqtt_info->iothub_type = item_type;
|
---|
| 3030 | mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
|
---|
| 3031 | mqtt_info->retryCount = 0;
|
---|
| 3032 | mqtt_info->userCallback = NULL;
|
---|
| 3033 | mqtt_info->userContext = NULL;
|
---|
| 3034 | mqtt_info->msgEnqueueTime = 0;
|
---|
| 3035 |
|
---|
| 3036 | /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
|
---|
| 3037 | DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
|
---|
| 3038 |
|
---|
| 3039 | if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
|
---|
| 3040 | {
|
---|
| 3041 | DList_RemoveEntryList(&mqtt_info->entry);
|
---|
| 3042 |
|
---|
| 3043 | free(mqtt_info);
|
---|
| 3044 | /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
|
---|
| 3045 | result = IOTHUB_PROCESS_ERROR;
|
---|
| 3046 | }
|
---|
| 3047 | else
|
---|
| 3048 | {
|
---|
| 3049 | result = IOTHUB_PROCESS_OK;
|
---|
| 3050 | }
|
---|
| 3051 | }
|
---|
| 3052 | }
|
---|
| 3053 | else
|
---|
| 3054 | {
|
---|
| 3055 | /* Codes_SRS_IOTHUBCLIENT_LL_07_006: [ If the item_type is not a supported type IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_CONTINUE. ]*/
|
---|
| 3056 | result = IOTHUB_PROCESS_CONTINUE;
|
---|
| 3057 | }
|
---|
| 3058 | }
|
---|
| 3059 | else
|
---|
| 3060 | {
|
---|
| 3061 | /* 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. ] */
|
---|
| 3062 | result = IOTHUB_PROCESS_NOT_CONNECTED;
|
---|
| 3063 | }
|
---|
| 3064 | }
|
---|
| 3065 | return result;
|
---|
| 3066 | }
|
---|
| 3067 |
|
---|
| 3068 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_054: [ IoTHubTransport_MQTT_Common_DoWork shall subscribe to the Notification and get_state Topics if they are defined. ] */
|
---|
| 3069 | void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle)
|
---|
| 3070 | {
|
---|
| 3071 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransport_MQTT_Common_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
|
---|
| 3072 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 3073 | if (transport_data != NULL)
|
---|
| 3074 | {
|
---|
| 3075 | if (InitializeConnection(transport_data) == 0)
|
---|
| 3076 | {
|
---|
| 3077 | if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_PENDING_CLOSE)
|
---|
| 3078 | {
|
---|
| 3079 | mqtt_client_disconnect(transport_data->mqttClient, NULL, NULL);
|
---|
| 3080 | transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
|
---|
| 3081 | }
|
---|
| 3082 | else if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
|
---|
| 3083 | {
|
---|
| 3084 | SubscribeToMqttProtocol(transport_data);
|
---|
| 3085 | }
|
---|
| 3086 | else if (transport_data->currPacketState == SUBACK_TYPE)
|
---|
| 3087 | {
|
---|
| 3088 | if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
|
---|
| 3089 | !transport_data->device_twin_get_sent)
|
---|
| 3090 | {
|
---|
| 3091 | /* 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. ] */
|
---|
| 3092 | MQTT_DEVICE_TWIN_ITEM* mqtt_info;
|
---|
| 3093 |
|
---|
| 3094 | if ((mqtt_info = create_device_twin_get_message(transport_data)) == NULL)
|
---|
| 3095 | {
|
---|
| 3096 | LogError("Failure: could not create message for twin get command");
|
---|
| 3097 | }
|
---|
| 3098 | else if (publish_device_twin_get_message(transport_data, mqtt_info) == 0)
|
---|
| 3099 | {
|
---|
| 3100 | transport_data->device_twin_get_sent = true;
|
---|
| 3101 | }
|
---|
| 3102 | else
|
---|
| 3103 | {
|
---|
| 3104 | LogError("Failure: sending device twin get property command.");
|
---|
| 3105 | destroy_device_twin_get_message(mqtt_info);
|
---|
| 3106 | }
|
---|
| 3107 | }
|
---|
| 3108 | // Publish can be called now
|
---|
| 3109 | transport_data->currPacketState = PUBLISH_TYPE;
|
---|
| 3110 | }
|
---|
| 3111 | else if (transport_data->currPacketState == PUBLISH_TYPE)
|
---|
| 3112 | {
|
---|
| 3113 | PDLIST_ENTRY currentListEntry = transport_data->waitingToSend->Flink;
|
---|
| 3114 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
|
---|
| 3115 | while (currentListEntry != transport_data->waitingToSend)
|
---|
| 3116 | {
|
---|
| 3117 | IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
|
---|
| 3118 | DLIST_ENTRY savedFromCurrentListEntry;
|
---|
| 3119 | savedFromCurrentListEntry.Flink = currentListEntry->Flink;
|
---|
| 3120 |
|
---|
| 3121 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
|
---|
| 3122 | size_t messageLength;
|
---|
| 3123 | const unsigned char* messagePayload = NULL;
|
---|
| 3124 | if (!RetrieveMessagePayload(iothubMsgList->messageHandle, &messagePayload, &messageLength))
|
---|
| 3125 | {
|
---|
| 3126 | (void)(DList_RemoveEntryList(currentListEntry));
|
---|
| 3127 | sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
|
---|
| 3128 | LogError("Failure result from IoTHubMessage_GetData");
|
---|
| 3129 | }
|
---|
| 3130 | else
|
---|
| 3131 | {
|
---|
| 3132 | /* 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.] */
|
---|
| 3133 | MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
|
---|
| 3134 | if (mqttMsgEntry == NULL)
|
---|
| 3135 | {
|
---|
| 3136 | LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
|
---|
| 3137 | }
|
---|
| 3138 | else
|
---|
| 3139 | {
|
---|
| 3140 | mqttMsgEntry->retryCount = 0;
|
---|
| 3141 | mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
|
---|
| 3142 | mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
|
---|
| 3143 | if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
|
---|
| 3144 | {
|
---|
| 3145 | (void)(DList_RemoveEntryList(currentListEntry));
|
---|
| 3146 | sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
|
---|
| 3147 | free(mqttMsgEntry);
|
---|
| 3148 | }
|
---|
| 3149 | else
|
---|
| 3150 | {
|
---|
| 3151 | // Remove the message from the waiting queue ...
|
---|
| 3152 | (void)(DList_RemoveEntryList(currentListEntry));
|
---|
| 3153 | // and add it to the ack queue
|
---|
| 3154 | DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
|
---|
| 3155 | }
|
---|
| 3156 | }
|
---|
| 3157 | }
|
---|
| 3158 | currentListEntry = savedFromCurrentListEntry.Flink;
|
---|
| 3159 | }
|
---|
| 3160 |
|
---|
| 3161 | sendPendingGetTwinRequests(transport_data);
|
---|
| 3162 | }
|
---|
| 3163 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransport_MQTT_Common_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
|
---|
| 3164 | mqtt_client_dowork(transport_data->mqttClient);
|
---|
| 3165 | }
|
---|
| 3166 |
|
---|
| 3167 | // Check the ack messages timeouts
|
---|
| 3168 | process_queued_ack_messages(transport_data);
|
---|
| 3169 | removeExpiredPendingGetTwinRequests(transport_data);
|
---|
| 3170 | removeExpiredGetTwinRequestsPendingAck(transport_data);
|
---|
| 3171 | }
|
---|
| 3172 | }
|
---|
| 3173 |
|
---|
| 3174 | IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
|
---|
| 3175 | {
|
---|
| 3176 | IOTHUB_CLIENT_RESULT result;
|
---|
| 3177 |
|
---|
| 3178 | if (handle == NULL || iotHubClientStatus == NULL)
|
---|
| 3179 | {
|
---|
| 3180 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransport_MQTT_Common_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
|
---|
| 3181 | LogError("invalid arument.");
|
---|
| 3182 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3183 | }
|
---|
| 3184 | else
|
---|
| 3185 | {
|
---|
| 3186 | MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
|
---|
| 3187 | if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
|
---|
| 3188 | {
|
---|
| 3189 | /* 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.] */
|
---|
| 3190 | *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
|
---|
| 3191 | }
|
---|
| 3192 | else
|
---|
| 3193 | {
|
---|
| 3194 | /* 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.] */
|
---|
| 3195 | *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
|
---|
| 3196 | }
|
---|
| 3197 | result = IOTHUB_CLIENT_OK;
|
---|
| 3198 | }
|
---|
| 3199 | return result;
|
---|
| 3200 | }
|
---|
| 3201 |
|
---|
| 3202 | IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
|
---|
| 3203 | {
|
---|
| 3204 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
|
---|
| 3205 | IOTHUB_CLIENT_RESULT result;
|
---|
| 3206 | if (
|
---|
| 3207 | (handle == NULL) ||
|
---|
| 3208 | (option == NULL) ||
|
---|
| 3209 | (value == NULL)
|
---|
| 3210 | )
|
---|
| 3211 | {
|
---|
| 3212 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3213 | LogError("invalid parameter (NULL) passed to IoTHubTransport_MQTT_Common_SetOption.");
|
---|
| 3214 | }
|
---|
| 3215 | else
|
---|
| 3216 | {
|
---|
| 3217 | MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
|
---|
| 3218 |
|
---|
| 3219 | IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
|
---|
| 3220 |
|
---|
| 3221 | /* 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.] */
|
---|
| 3222 | if (strcmp(OPTION_LOG_TRACE, option) == 0)
|
---|
| 3223 | {
|
---|
| 3224 | transport_data->log_trace = *((bool*)value);
|
---|
| 3225 | mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
|
---|
| 3226 | result = IOTHUB_CLIENT_OK;
|
---|
| 3227 | }
|
---|
| 3228 | else if (strcmp("rawlogtrace", option) == 0)
|
---|
| 3229 | {
|
---|
| 3230 | transport_data->raw_trace = *((bool*)value);
|
---|
| 3231 | mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
|
---|
| 3232 | result = IOTHUB_CLIENT_OK;
|
---|
| 3233 | }
|
---|
| 3234 | else if (strcmp(OPTION_AUTO_URL_ENCODE_DECODE, option) == 0)
|
---|
| 3235 | {
|
---|
| 3236 | transport_data->auto_url_encode_decode = *((bool*)value);
|
---|
| 3237 | result = IOTHUB_CLIENT_OK;
|
---|
| 3238 | }
|
---|
| 3239 | else if (strcmp(OPTION_CONNECTION_TIMEOUT, option) == 0)
|
---|
| 3240 | {
|
---|
| 3241 | int* connection_time = (int*)value;
|
---|
| 3242 | if (*connection_time != transport_data->connect_timeout_in_sec)
|
---|
| 3243 | {
|
---|
| 3244 | transport_data->connect_timeout_in_sec = (uint16_t)(*connection_time);
|
---|
| 3245 | }
|
---|
| 3246 | result = IOTHUB_CLIENT_OK;
|
---|
| 3247 | }
|
---|
| 3248 | else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
|
---|
| 3249 | {
|
---|
| 3250 | /* 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.] */
|
---|
| 3251 | int* keepAliveOption = (int*)value;
|
---|
| 3252 | /* 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.] */
|
---|
| 3253 | if (*keepAliveOption != transport_data->keepAliveValue)
|
---|
| 3254 | {
|
---|
| 3255 | transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
|
---|
| 3256 | if (transport_data->mqttClientStatus != MQTT_CLIENT_STATUS_NOT_CONNECTED)
|
---|
| 3257 | {
|
---|
| 3258 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is connected when the keepalive is set then IoTHubTransport_MQTT_Common_SetOption shall disconnect and reconnect with the specified keepalive value.] */
|
---|
| 3259 | DisconnectFromClient(transport_data);
|
---|
| 3260 | }
|
---|
| 3261 | }
|
---|
| 3262 | result = IOTHUB_CLIENT_OK;
|
---|
| 3263 | }
|
---|
| 3264 | /* 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.] */
|
---|
| 3265 | else if ((strcmp(OPTION_X509_CERT, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
|
---|
| 3266 | {
|
---|
| 3267 | LogError("x509certificate specified, but authentication method is not x509");
|
---|
| 3268 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3269 | }
|
---|
| 3270 | /* 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.] */
|
---|
| 3271 | else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
|
---|
| 3272 | {
|
---|
| 3273 | LogError("x509privatekey specified, but authentication method is not x509");
|
---|
| 3274 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3275 | }
|
---|
| 3276 | else if (strcmp(OPTION_HTTP_PROXY, option) == 0)
|
---|
| 3277 | {
|
---|
| 3278 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_001: [ If `option` is `proxy_data`, `value` shall be used as an `HTTP_PROXY_OPTIONS*`. ]*/
|
---|
| 3279 | HTTP_PROXY_OPTIONS* proxy_options = (HTTP_PROXY_OPTIONS*)value;
|
---|
| 3280 |
|
---|
| 3281 | if (transport_data->xioTransport != NULL)
|
---|
| 3282 | {
|
---|
| 3283 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_007: [ If the underlying IO has already been created, then `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
|
---|
| 3284 | LogError("Cannot set proxy option once the underlying IO is created");
|
---|
| 3285 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3286 | }
|
---|
| 3287 | else if (proxy_options->host_address == NULL)
|
---|
| 3288 | {
|
---|
| 3289 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_003: [ If `host_address` is NULL, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_INVALID_ARG`. ]*/
|
---|
| 3290 | LogError("NULL host_address in proxy options");
|
---|
| 3291 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3292 | }
|
---|
| 3293 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_006: [ If only one of `username` and `password` is NULL, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_INVALID_ARG`. ]*/
|
---|
| 3294 | else if (((proxy_options->username == NULL) || (proxy_options->password == NULL)) &&
|
---|
| 3295 | (proxy_options->username != proxy_options->password))
|
---|
| 3296 | {
|
---|
| 3297 | LogError("Only one of username and password for proxy settings was NULL");
|
---|
| 3298 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3299 | }
|
---|
| 3300 | else
|
---|
| 3301 | {
|
---|
| 3302 | char* copied_proxy_hostname = NULL;
|
---|
| 3303 | char* copied_proxy_username = NULL;
|
---|
| 3304 | char* copied_proxy_password = NULL;
|
---|
| 3305 |
|
---|
| 3306 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_002: [ The fields `host_address`, `port`, `username` and `password` shall be saved for later used (needed when creating the underlying IO to be used by the transport). ]*/
|
---|
| 3307 | transport_data->http_proxy_port = proxy_options->port;
|
---|
| 3308 | if (mallocAndStrcpy_s(&copied_proxy_hostname, proxy_options->host_address) != 0)
|
---|
| 3309 | {
|
---|
| 3310 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
|
---|
| 3311 | LogError("Cannot copy HTTP proxy hostname");
|
---|
| 3312 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3313 | }
|
---|
| 3314 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
|
---|
| 3315 | else if ((proxy_options->username != NULL) && (mallocAndStrcpy_s(&copied_proxy_username, proxy_options->username) != 0))
|
---|
| 3316 | {
|
---|
| 3317 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
|
---|
| 3318 | free(copied_proxy_hostname);
|
---|
| 3319 | LogError("Cannot copy HTTP proxy username");
|
---|
| 3320 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3321 | }
|
---|
| 3322 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
|
---|
| 3323 | else if ((proxy_options->password != NULL) && (mallocAndStrcpy_s(&copied_proxy_password, proxy_options->password) != 0))
|
---|
| 3324 | {
|
---|
| 3325 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
|
---|
| 3326 | if (copied_proxy_username != NULL)
|
---|
| 3327 | {
|
---|
| 3328 | free(copied_proxy_username);
|
---|
| 3329 | }
|
---|
| 3330 | free(copied_proxy_hostname);
|
---|
| 3331 | LogError("Cannot copy HTTP proxy password");
|
---|
| 3332 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3333 | }
|
---|
| 3334 | else
|
---|
| 3335 | {
|
---|
| 3336 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_009: [ When setting the proxy options succeeds any previously saved proxy options shall be freed. ]*/
|
---|
| 3337 | free_proxy_data(transport_data);
|
---|
| 3338 |
|
---|
| 3339 | transport_data->http_proxy_hostname = copied_proxy_hostname;
|
---|
| 3340 | transport_data->http_proxy_username = copied_proxy_username;
|
---|
| 3341 | transport_data->http_proxy_password = copied_proxy_password;
|
---|
| 3342 |
|
---|
| 3343 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_008: [ If setting the `proxy_data` option suceeds, `IoTHubTransport_MQTT_Common_SetOption` shall return `IOTHUB_CLIENT_OK` ]*/
|
---|
| 3344 | result = IOTHUB_CLIENT_OK;
|
---|
| 3345 | }
|
---|
| 3346 | }
|
---|
| 3347 | }
|
---|
| 3348 | else
|
---|
| 3349 | {
|
---|
| 3350 | /* 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.] */
|
---|
| 3351 | if (((strcmp(OPTION_X509_CERT, option) == 0) || (strcmp(OPTION_X509_PRIVATE_KEY, option) == 0)) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509))
|
---|
| 3352 | {
|
---|
| 3353 | IoTHubClient_Auth_Set_x509_Type(transport_data->authorization_module, true);
|
---|
| 3354 | }
|
---|
| 3355 |
|
---|
| 3356 | /* 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.] */
|
---|
| 3357 | if (GetTransportProviderIfNecessary(transport_data) == 0)
|
---|
| 3358 | {
|
---|
| 3359 | if (xio_setoption(transport_data->xioTransport, option, value) == 0)
|
---|
| 3360 | {
|
---|
| 3361 | result = IOTHUB_CLIENT_OK;
|
---|
| 3362 | }
|
---|
| 3363 | else
|
---|
| 3364 | {
|
---|
| 3365 | /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
|
---|
| 3366 | result = IOTHUB_CLIENT_INVALID_ARG;
|
---|
| 3367 | }
|
---|
| 3368 | }
|
---|
| 3369 | else
|
---|
| 3370 | {
|
---|
| 3371 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3372 | }
|
---|
| 3373 | }
|
---|
| 3374 | }
|
---|
| 3375 | return result;
|
---|
| 3376 | }
|
---|
| 3377 |
|
---|
| 3378 | static bool check_module_ids_equal(const char* transportModuleId, const char* deviceModuleId)
|
---|
| 3379 | {
|
---|
| 3380 | if ((transportModuleId != NULL) && (deviceModuleId == NULL))
|
---|
| 3381 | {
|
---|
| 3382 | return false;
|
---|
| 3383 | }
|
---|
| 3384 | else if ((transportModuleId == NULL) && (deviceModuleId != NULL))
|
---|
| 3385 | {
|
---|
| 3386 | return false;
|
---|
| 3387 | }
|
---|
| 3388 | else if ((transportModuleId == NULL) && (deviceModuleId == NULL))
|
---|
| 3389 | {
|
---|
| 3390 | return true;
|
---|
| 3391 | }
|
---|
| 3392 | else
|
---|
| 3393 | {
|
---|
| 3394 | return (0 == strcmp(transportModuleId, deviceModuleId));
|
---|
| 3395 | }
|
---|
| 3396 | }
|
---|
| 3397 |
|
---|
| 3398 | TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, PDLIST_ENTRY waitingToSend)
|
---|
| 3399 | {
|
---|
| 3400 | TRANSPORT_LL_HANDLE result = NULL;
|
---|
| 3401 |
|
---|
| 3402 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
|
---|
| 3403 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
|
---|
| 3404 | if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
|
---|
| 3405 | {
|
---|
| 3406 | LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
|
---|
| 3407 | result = NULL;
|
---|
| 3408 | }
|
---|
| 3409 | else
|
---|
| 3410 | {
|
---|
| 3411 | MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
|
---|
| 3412 |
|
---|
| 3413 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
|
---|
| 3414 | if (device->deviceId == NULL)
|
---|
| 3415 | {
|
---|
| 3416 | LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
|
---|
| 3417 | result = NULL;
|
---|
| 3418 | }
|
---|
| 3419 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
|
---|
| 3420 | else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
|
---|
| 3421 | {
|
---|
| 3422 | LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
|
---|
| 3423 | result = NULL;
|
---|
| 3424 | }
|
---|
| 3425 | else
|
---|
| 3426 | {
|
---|
| 3427 | // 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.]
|
---|
| 3428 | if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
|
---|
| 3429 | {
|
---|
| 3430 | LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
|
---|
| 3431 | result = NULL;
|
---|
| 3432 | }
|
---|
| 3433 | else if (!check_module_ids_equal(STRING_c_str(transport_data->module_id), device->moduleId))
|
---|
| 3434 | {
|
---|
| 3435 | LogError("IoTHubTransport_MQTT_Common_Register: moduleId does not match.");
|
---|
| 3436 | result = NULL;
|
---|
| 3437 | }
|
---|
| 3438 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_43_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceKey is NULL when credential type is IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY ]
|
---|
| 3439 | else if (IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module) == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY &&
|
---|
| 3440 | ((device->deviceKey == NULL) || (strcmp(IoTHubClient_Auth_Get_DeviceKey(transport_data->authorization_module), device->deviceKey) != 0)))
|
---|
| 3441 | {
|
---|
| 3442 | LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
|
---|
| 3443 | result = NULL;
|
---|
| 3444 | }
|
---|
| 3445 | else
|
---|
| 3446 | {
|
---|
| 3447 | if (transport_data->isRegistered == true)
|
---|
| 3448 | {
|
---|
| 3449 | LogError("Transport already has device registered by id: [%s]", device->deviceId);
|
---|
| 3450 | result = NULL;
|
---|
| 3451 | }
|
---|
| 3452 | else
|
---|
| 3453 | {
|
---|
| 3454 | transport_data->isRegistered = true;
|
---|
| 3455 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransport_MQTT_Common_Register shall return the TRANSPORT_LL_HANDLE as the TRANSPORT_LL_HANDLE. ]
|
---|
| 3456 | result = (TRANSPORT_LL_HANDLE)handle;
|
---|
| 3457 | }
|
---|
| 3458 | }
|
---|
| 3459 | }
|
---|
| 3460 | }
|
---|
| 3461 |
|
---|
| 3462 | return result;
|
---|
| 3463 | }
|
---|
| 3464 |
|
---|
| 3465 | void IoTHubTransport_MQTT_Common_Unregister(TRANSPORT_LL_HANDLE deviceHandle)
|
---|
| 3466 | {
|
---|
| 3467 | // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
|
---|
| 3468 | if (deviceHandle != NULL)
|
---|
| 3469 | {
|
---|
| 3470 | MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
|
---|
| 3471 |
|
---|
| 3472 | transport_data->isRegistered = false;
|
---|
| 3473 | }
|
---|
| 3474 | }
|
---|
| 3475 |
|
---|
| 3476 | STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
|
---|
| 3477 | {
|
---|
| 3478 | STRING_HANDLE result;
|
---|
| 3479 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
|
---|
| 3480 | if (handle == NULL)
|
---|
| 3481 | {
|
---|
| 3482 | result = NULL;
|
---|
| 3483 | }
|
---|
| 3484 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransport_MQTT_Common_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
|
---|
| 3485 | else if ((result = STRING_clone(((MQTTTRANSPORT_HANDLE_DATA*)(handle))->hostAddress)) == NULL)
|
---|
| 3486 | {
|
---|
| 3487 | LogError("Cannot provide the target host name (STRING_clone failed).");
|
---|
| 3488 | }
|
---|
| 3489 |
|
---|
| 3490 | return result;
|
---|
| 3491 | }
|
---|
| 3492 |
|
---|
| 3493 | IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SendMessageDisposition(MESSAGE_CALLBACK_INFO* message_data, IOTHUBMESSAGE_DISPOSITION_RESULT disposition)
|
---|
| 3494 | {
|
---|
| 3495 | (void)disposition;
|
---|
| 3496 |
|
---|
| 3497 | IOTHUB_CLIENT_RESULT result;
|
---|
| 3498 | if (message_data)
|
---|
| 3499 | {
|
---|
| 3500 | if (message_data->messageHandle)
|
---|
| 3501 | {
|
---|
| 3502 | IoTHubMessage_Destroy(message_data->messageHandle);
|
---|
| 3503 | result = IOTHUB_CLIENT_OK;
|
---|
| 3504 | }
|
---|
| 3505 | else
|
---|
| 3506 | {
|
---|
| 3507 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_10_002: [If any of the messageData fields are NULL, IoTHubTransport_MQTT_Common_SendMessageDisposition shall fail and return IOTHUB_CLIENT_ERROR. ]*/
|
---|
| 3508 | LogError("message handle is NULL");
|
---|
| 3509 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3510 | }
|
---|
| 3511 | free(message_data);
|
---|
| 3512 | }
|
---|
| 3513 | else
|
---|
| 3514 | {
|
---|
| 3515 | /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_10_001: [If messageData is NULL, IoTHubTransport_MQTT_Common_SendMessageDisposition shall fail and return IOTHUB_CLIENT_ERROR. ]*/
|
---|
| 3516 | LogError("message_data is NULL");
|
---|
| 3517 | result = IOTHUB_CLIENT_ERROR;
|
---|
| 3518 | }
|
---|
| 3519 | return result;
|
---|
| 3520 | }
|
---|
| 3521 |
|
---|
| 3522 |
|
---|
| 3523 | int IoTHubTransport_MQTT_Common_Subscribe_InputQueue(TRANSPORT_LL_HANDLE handle)
|
---|
| 3524 | {
|
---|
| 3525 | int result;
|
---|
| 3526 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 3527 | if (transport_data == NULL)
|
---|
| 3528 | {
|
---|
| 3529 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_066: [ If parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe_InputQueue shall return a non-zero value.]
|
---|
| 3530 | LogError("Invalid handle parameter. NULL.");
|
---|
| 3531 | result = MU_FAILURE;
|
---|
| 3532 | }
|
---|
| 3533 | else if (transport_data->module_id == NULL)
|
---|
| 3534 | {
|
---|
| 3535 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_073: [ If module ID is not set on the transpont, IoTHubTransport_MQTT_Common_Unsubscribe_InputQueue shall fail.]
|
---|
| 3536 | LogError("ModuleID must be specified for input queues. NULL.");
|
---|
| 3537 | result = MU_FAILURE;
|
---|
| 3538 | }
|
---|
| 3539 | else if ((transport_data->topic_InputQueue == NULL) &&
|
---|
| 3540 | (transport_data->topic_InputQueue = STRING_construct_sprintf(TOPIC_INPUT_QUEUE_NAME, STRING_c_str(transport_data->device_id), STRING_c_str(transport_data->module_id))) == NULL)
|
---|
| 3541 | {
|
---|
| 3542 | LogError("Failure constructing Message Topic");
|
---|
| 3543 | result = MU_FAILURE;
|
---|
| 3544 | }
|
---|
| 3545 | else
|
---|
| 3546 | {
|
---|
| 3547 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_067: [ IoTHubTransport_MQTT_Common_Subscribe_InputQueue shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the input queue Message Topic.]
|
---|
| 3548 | transport_data->topics_ToSubscribe |= SUBSCRIBE_INPUT_QUEUE_TOPIC;
|
---|
| 3549 | changeStateToSubscribeIfAllowed(transport_data);
|
---|
| 3550 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_070: [ On success IoTHubTransport_MQTT_Common_Subscribe_InputQueue shall return 0.]
|
---|
| 3551 | result = 0;
|
---|
| 3552 | }
|
---|
| 3553 | return result;
|
---|
| 3554 | }
|
---|
| 3555 |
|
---|
| 3556 | void IoTHubTransport_MQTT_Common_Unsubscribe_InputQueue(TRANSPORT_LL_HANDLE handle)
|
---|
| 3557 | {
|
---|
| 3558 | PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
|
---|
| 3559 | if ((transport_data != NULL) && (transport_data->topic_InputQueue != NULL))
|
---|
| 3560 | {
|
---|
| 3561 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_072: [ IoTHubTransport_MQTT_Common_Unsubscribe_InputQueue shall call mqtt_client_unsubscribe to unsubscribe the mqtt input queue message topic.]
|
---|
| 3562 | const char* unsubscribe[1];
|
---|
| 3563 | unsubscribe[0] = STRING_c_str(transport_data->topic_InputQueue);
|
---|
| 3564 | if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
|
---|
| 3565 | {
|
---|
| 3566 | LogError("Failure calling mqtt_client_unsubscribe");
|
---|
| 3567 | }
|
---|
| 3568 | STRING_delete(transport_data->topic_InputQueue);
|
---|
| 3569 | transport_data->topic_InputQueue = NULL;
|
---|
| 3570 | transport_data->topics_ToSubscribe &= ~SUBSCRIBE_INPUT_QUEUE_TOPIC;
|
---|
| 3571 | }
|
---|
| 3572 | else
|
---|
| 3573 | {
|
---|
| 3574 | // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_31_071: [ If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe_InputQueue shall do nothing.]
|
---|
| 3575 | LogError("Invalid argument to unsubscribe input queue (NULL).");
|
---|
| 3576 | }
|
---|
| 3577 | }
|
---|
| 3578 |
|
---|
| 3579 | int IoTHubTransport_MQTT_SetCallbackContext(TRANSPORT_LL_HANDLE handle, void* ctx)
|
---|
| 3580 | {
|
---|
| 3581 | int result;
|
---|
| 3582 | if (handle == NULL)
|
---|
| 3583 | {
|
---|
| 3584 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
| 3585 | result = MU_FAILURE;
|
---|
| 3586 | }
|
---|
| 3587 | else
|
---|
| 3588 | {
|
---|
| 3589 | MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
|
---|
| 3590 | transport_data->transport_ctx = ctx;
|
---|
| 3591 | result = 0;
|
---|
| 3592 | }
|
---|
| 3593 | return result;
|
---|
| 3594 | }
|
---|