Azure IoT
Microsoft Azure IoTHub client MQTT transport
Dependents: STM32F746_iothub_client_sample_mqtt FXOS8700CQ_To_Azure_IoT f767zi_mqtt FXOS8700CQ_To_Azure_IoT ... more
Diff: iothubtransportmqtt.c
- Revision:
- 4:e472f5ce3473
- Parent:
- 3:40f482ed0be8
- Child:
- 5:73603e7a6542
--- a/iothubtransportmqtt.c Mon May 09 14:36:52 2016 -0700
+++ b/iothubtransportmqtt.c Fri Jun 17 17:02:32 2016 -0700
@@ -48,583 +48,575 @@
typedef struct SYSTEM_PROPERTY_INFO_TAG
{
- const char* propName;
- size_t propLength;
+ const char* propName;
+ size_t propLength;
} SYSTEM_PROPERTY_INFO;
static SYSTEM_PROPERTY_INFO sysPropList[] = {
- { "%24.exp", 7 },
- { "%24.mid", 7 },
- { "%24.uid", 7 },
- { "%24.to", 6 },
- { "%24.cid", 7 },
- { "devices/", 8 },
- { "iothub-operation", 16 },
- { "iothub-ack", 10 }
+ { "%24.exp", 7 },
+ { "%24.mid", 7 },
+ { "%24.uid", 7 },
+ { "%24.to", 6 },
+ { "%24.cid", 7 },
+ { "devices/", 8 },
+ { "iothub-operation", 16 },
+ { "iothub-ack", 10 }
};
-TICK_COUNTER_HANDLE g_msgTickCounter;
+static TICK_COUNTER_HANDLE g_msgTickCounter;
typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
{
- STRING_HANDLE device_id;
- STRING_HANDLE device_key;
- STRING_HANDLE sasTokenSr;
- STRING_HANDLE mqttEventTopic;
- STRING_HANDLE mqttMessageTopic;
- STRING_HANDLE hostAddress;
- // The current mqtt iothub implementation requires that the hub name and the domain suffix be passed as the first of a series of segments
- // passed through the username portion of the connection frame.
- // The second segment will contain the device id. The two segments are delemited by a "/".
- // The first segment can be a maximum 256 characters.
- // The second segment can be a maximum 128 characters.
- // With the / delimeter you have 384 chars (Plus a terminator of 0).
- STRING_HANDLE configPassedThroughUsername;
- int portNum;
- MQTT_CLIENT_HANDLE mqttClient;
- uint16_t packetId;
- bool sasTokenFromUser;
- bool isRegistered;
- bool connected;
- bool subscribed;
- bool receiveMessages;
- bool destroyCalled;
- DLIST_ENTRY waitingForAck;
- PDLIST_ENTRY waitingToSend;
- IOTHUB_CLIENT_LL_HANDLE llClientHandle;
- CONTROL_PACKET_TYPE currPacketState;
- XIO_HANDLE xioTransport;
- int keepAliveValue;
- uint64_t mqtt_connect_time;
- size_t connectFailCount;
- uint64_t connectTick;
+ STRING_HANDLE device_id;
+ STRING_HANDLE device_key;
+ STRING_HANDLE sasTokenSr;
+ STRING_HANDLE mqttEventTopic;
+ STRING_HANDLE mqttMessageTopic;
+ STRING_HANDLE hostAddress;
+ // The current mqtt iothub implementation requires that the hub name and the domain suffix be passed as the first of a series of segments
+ // passed through the username portion of the connection frame.
+ // The second segment will contain the device id. The two segments are delemited by a "/".
+ // The first segment can be a maximum 256 characters.
+ // The second segment can be a maximum 128 characters.
+ // With the / delimeter you have 384 chars (Plus a terminator of 0).
+ STRING_HANDLE configPassedThroughUsername;
+ int portNum;
+ MQTT_CLIENT_HANDLE mqttClient;
+ uint16_t packetId;
+ bool sasTokenFromUser;
+ bool isRegistered;
+ bool connected;
+ bool subscribed;
+ bool receiveMessages;
+ bool destroyCalled;
+ DLIST_ENTRY waitingForAck;
+ PDLIST_ENTRY waitingToSend;
+ IOTHUB_CLIENT_LL_HANDLE llClientHandle;
+ CONTROL_PACKET_TYPE currPacketState;
+ XIO_HANDLE xioTransport;
+ int keepAliveValue;
+ uint64_t mqtt_connect_time;
+ size_t connectFailCount;
+ uint64_t connectTick;
} MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
{
- uint64_t msgPublishTime;
- size_t retryCount;
- IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
- void* context;
- uint16_t msgPacketId;
- DLIST_ENTRY entry;
+ uint64_t msgPublishTime;
+ size_t retryCount;
+ IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
+ void* context;
+ uint16_t msgPacketId;
+ DLIST_ENTRY entry;
} MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
static void defaultPrintLogFunction(unsigned int options, char* format, ...)
{
- va_list args;
- va_start(args, format);
- (void)vprintf(format, args);
- va_end(args);
+ va_list args;
+ va_start(args, format);
+ (void)vprintf(format, args);
+ va_end(args);
- if (options & LOG_LINE)
- {
- (void)printf("\r\n");
- }
+ if (options & LOG_LINE)
+ {
+ (void)printf("\r\n");
+ }
}
static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transportState, IOTHUB_BATCHSTATE_RESULT batchResult)
{
- DLIST_ENTRY messageCompleted;
- DList_InitializeListHead(&messageCompleted);
- DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
- IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, batchResult);
+ DLIST_ENTRY messageCompleted;
+ DList_InitializeListHead(&messageCompleted);
+ DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
+ IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, batchResult);
}
static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
{
- STRING_HANDLE result = STRING_construct(eventTopic);
- const char* const* propertyKeys;
- const char* const* propertyValues;
- size_t propertyCount;
+ STRING_HANDLE result = STRING_construct(eventTopic);
+ const char* const* propertyKeys;
+ const char* const* propertyValues;
+ size_t propertyCount;
- // Construct Properties
- MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
- if (properties_map != NULL)
- {
- if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
- {
- LogError("Failed to get the internals of the property map.");
- STRING_delete(result);
- result = NULL;
- }
- else
- {
- if (propertyCount != 0)
- {
- for (size_t index = 0; index < propertyCount && result != NULL; index++)
- {
- size_t len = strlen(propertyKeys[index]) + strlen(propertyValues[index]) + 2;
- char* propValues = malloc(len+1);
- if (propValues == NULL)
- {
- STRING_delete(result);
- result = NULL;
- }
- else
- {
- sprintf(propValues, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : "&");
- if (STRING_concat(result, propValues) != 0)
- {
- STRING_delete(result);
- result = NULL;
- }
- free(propValues);
- }
- }
- }
- }
- }
- return result;
+ // Construct Properties
+ MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
+ if (properties_map != NULL)
+ {
+ if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
+ {
+ LogError("Failed to get the internals of the property map.");
+ STRING_delete(result);
+ result = NULL;
+ }
+ else
+ {
+ if (propertyCount != 0)
+ {
+ for (size_t index = 0; index < propertyCount && result != NULL; index++)
+ {
+ size_t len = strlen(propertyKeys[index]) + strlen(propertyValues[index]) + 2;
+ char* propValues = malloc(len+1);
+ if (propValues == NULL)
+ {
+ STRING_delete(result);
+ result = NULL;
+ }
+ else
+ {
+ sprintf(propValues, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : "&");
+ if (STRING_concat(result, propValues) != 0)
+ {
+ STRING_delete(result);
+ result = NULL;
+ }
+ free(propValues);
+ }
+ }
+ }
+ }
+ }
+ return result;
}
static int publishMqttMessage(PMQTTTRANSPORT_HANDLE_DATA transportState, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
{
- int result;
- STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transportState->mqttEventTopic));
- if (msgTopic == NULL)
- {
- result = __LINE__;
- }
- else
- {
- MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(transportState->packetId++, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
- if (mqttMsg == NULL)
- {
- result = __LINE__;
- }
- else
- {
- if (mqtt_client_publish(transportState->mqttClient, mqttMsg) != 0)
- {
- result = __LINE__;
- }
- else
- {
- mqttMsgEntry->retryCount++;
- (void)tickcounter_get_current_ms(g_msgTickCounter, &mqttMsgEntry->msgPublishTime);
- result = 0;
- }
- mqttmessage_destroy(mqttMsg);
- }
- STRING_delete(msgTopic);
- }
- return result;
+ int result;
+ STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transportState->mqttEventTopic));
+ if (msgTopic == NULL)
+ {
+ result = __LINE__;
+ }
+ else
+ {
+ MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(transportState->packetId++, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
+ if (mqttMsg == NULL)
+ {
+ result = __LINE__;
+ }
+ else
+ {
+ if (mqtt_client_publish(transportState->mqttClient, mqttMsg) != 0)
+ {
+ result = __LINE__;
+ }
+ else
+ {
+ mqttMsgEntry->retryCount++;
+ (void)tickcounter_get_current_ms(g_msgTickCounter, &mqttMsgEntry->msgPublishTime);
+ result = 0;
+ }
+ mqttmessage_destroy(mqttMsg);
+ }
+ STRING_delete(msgTopic);
+ }
+ return result;
}
static bool isSystemProperty(const char* tokenData)
{
- bool result = false;
- size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
- for (size_t index = 0; index < propCount; index++)
- {
- if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
- {
- result = true;
- break;
- }
- }
- return result;
+ bool result = false;
+ size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
+ for (size_t index = 0; index < propCount; index++)
+ {
+ if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
+ {
+ result = true;
+ break;
+ }
+ }
+ return result;
}
static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, MQTT_MESSAGE_HANDLE msgHandle)
{
- int result;
- STRING_HANDLE mqttTopic = STRING_construct(mqttmessage_getTopicName(msgHandle));
+ int result;
+ STRING_HANDLE mqttTopic = STRING_construct(mqttmessage_getTopicName(msgHandle));
- STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
- if (token != NULL)
- {
- MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
- if (propertyMap == NULL)
- {
- LogError("Failure to retrieve IoTHubMessage_properties.");
- result = __LINE__;
- }
- else
- {
- STRING_HANDLE output = STRING_new();
- if (output == NULL)
- {
- LogError("Failure to allocate STRING_new.");
- result = __LINE__;
- }
- else
- {
- result = 0;
- while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
- {
- const char* tokenData = STRING_c_str(output);
- size_t tokenLen = strlen(tokenData);
- if (tokenData == NULL || tokenLen == 0)
- {
- break;
- }
- else
- {
- if (!isSystemProperty(tokenData) )
- {
- const char* iterator = tokenData;
- while (iterator != NULL && *iterator != '\0' && result == 0)
- {
- if (*iterator == '=')
- {
- size_t nameLen = iterator - tokenData;
- char* propName = malloc(nameLen + 1);
+ STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
+ if (token != NULL)
+ {
+ MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
+ if (propertyMap == NULL)
+ {
+ LogError("Failure to retrieve IoTHubMessage_properties.");
+ result = __LINE__;
+ }
+ else
+ {
+ STRING_HANDLE output = STRING_new();
+ if (output == NULL)
+ {
+ LogError("Failure to allocate STRING_new.");
+ result = __LINE__;
+ }
+ else
+ {
+ result = 0;
+ while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
+ {
+ const char* tokenData = STRING_c_str(output);
+ size_t tokenLen = strlen(tokenData);
+ if (tokenData == NULL || tokenLen == 0)
+ {
+ break;
+ }
+ else
+ {
+ if (!isSystemProperty(tokenData) )
+ {
+ const char* iterator = tokenData;
+ while (iterator != NULL && *iterator != '\0' && result == 0)
+ {
+ if (*iterator == '=')
+ {
+ size_t nameLen = iterator - tokenData;
+ char* propName = malloc(nameLen + 1);
- size_t valLen = tokenLen - (nameLen + 1) + 1;
- char* propValue = malloc(valLen + 1);
+ size_t valLen = tokenLen - (nameLen + 1) + 1;
+ char* propValue = malloc(valLen + 1);
- if (propName == NULL || propValue == NULL)
- {
- result = __LINE__;
- }
- else
- {
- strncpy(propName, tokenData, nameLen);
- propName[nameLen] = '\0';
+ if (propName == NULL || propValue == NULL)
+ {
+ result = __LINE__;
+ }
+ else
+ {
+ strncpy(propName, tokenData, nameLen);
+ propName[nameLen] = '\0';
- strncpy(propValue, iterator + 1, valLen);
- propValue[valLen] = '\0';
+ strncpy(propValue, iterator + 1, valLen);
+ propValue[valLen] = '\0';
- if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
- {
- LogError("Map_AddOrUpdate failed.");
- result = __LINE__;
- }
- }
- free(propName);
- free(propValue);
+ if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
+ {
+ LogError("Map_AddOrUpdate failed.");
+ result = __LINE__;
+ }
+ }
+ free(propName);
+ free(propValue);
- break;
- }
- iterator++;
- }
- }
- }
- }
- STRING_delete(output);
- }
- }
- STRING_TOKENIZER_destroy(token);
- }
- else
- {
- LogError("Unable to create Tokenizer object.");
- result = __LINE__;
- }
- STRING_delete(mqttTopic);
+ break;
+ }
+ iterator++;
+ }
+ }
+ }
+ }
+ STRING_delete(output);
+ }
+ }
+ STRING_TOKENIZER_destroy(token);
+ }
+ else
+ {
+ LogError("Unable to create Tokenizer object.");
+ result = __LINE__;
+ }
+ STRING_delete(mqttTopic);
- return result;
+ return result;
}
static void MqttRecvCallback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
{
- if (msgHandle != NULL && callbackCtx != NULL)
- {
- const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
- IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
- if (IoTHubMessage == NULL)
- {
- LogError("IotHub Message creation has failed.");
- }
- else
- {
- // Will need to update this when the service has messages that can be rejected
- (void)extractMqttProperties(IoTHubMessage, msgHandle);
- PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
- if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
- {
- LogError("Event not accepted by our client.");
- }
- IoTHubMessage_Destroy(IoTHubMessage);
- }
- }
+ if (msgHandle != NULL && callbackCtx != NULL)
+ {
+ const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
+ IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
+ if (IoTHubMessage == NULL)
+ {
+ LogError("IotHub Message creation has failed.");
+ }
+ else
+ {
+ // Will need to update this when the service has messages that can be rejected
+ (void)extractMqttProperties(IoTHubMessage, msgHandle);
+ PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
+ if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
+ {
+ LogError("Event not accepted by our client.");
+ }
+ IoTHubMessage_Destroy(IoTHubMessage);
+ }
+ }
}
static void MqttOpCompleteCallback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
{
- (void)handle;
- if (callbackCtx != NULL)
- {
- PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
+ (void)handle;
+ if (callbackCtx != NULL)
+ {
+ PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
- switch (actionResult)
- {
- case MQTT_CLIENT_ON_PUBLISH_ACK:
- case MQTT_CLIENT_ON_PUBLISH_COMP:
- {
- const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
- if (puback != NULL)
- {
- PDLIST_ENTRY currentListEntry = transportData->waitingForAck.Flink;
- while (currentListEntry != &transportData->waitingForAck)
- {
- MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
- DLIST_ENTRY saveListEntry;
- saveListEntry.Flink = currentListEntry->Flink;
+ switch (actionResult)
+ {
+ case MQTT_CLIENT_ON_PUBLISH_ACK:
+ case MQTT_CLIENT_ON_PUBLISH_COMP:
+ {
+ const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
+ if (puback != NULL)
+ {
+ PDLIST_ENTRY currentListEntry = transportData->waitingForAck.Flink;
+ while (currentListEntry != &transportData->waitingForAck)
+ {
+ MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
+ DLIST_ENTRY saveListEntry;
+ saveListEntry.Flink = currentListEntry->Flink;
- if (puback->packetId == mqttMsgEntry->msgPacketId)
- {
- (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
- sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportData, IOTHUB_BATCHSTATE_SUCCESS);
- free(mqttMsgEntry);
- }
- currentListEntry = saveListEntry.Flink;
- }
- }
- break;
- }
- case MQTT_CLIENT_ON_CONNACK:
- {
- const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
- if (connack != NULL)
- {
- if (connack->returnCode == CONNECTION_ACCEPTED)
- {
- // The connect packet has been acked
- transportData->currPacketState = CONNACK_TYPE;
- }
- else
- {
- LogError("Connection not accepted, return code: %d.", connack->returnCode);
- (void)mqtt_client_disconnect(transportData->mqttClient);
- transportData->connected = false;
- transportData->currPacketState = PACKET_TYPE_ERROR;
- }
- }
- else
- {
- LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
- }
- break;
- }
- case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
- {
- const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
- if (suback != NULL)
- {
- if (suback->qosCount == 1)
- {
- // The connect packet has been acked
- transportData->currPacketState = SUBACK_TYPE;
- }
- else
- {
- LogError("QOS count was not expected: %d.", (int)suback->qosCount);
- }
- }
- break;
- }
- case MQTT_CLIENT_ON_PUBLISH_RECV:
- case MQTT_CLIENT_ON_PUBLISH_REL:
- {
- // Currently not used
- break;
- }
- case MQTT_CLIENT_ON_DISCONNECT:
- {
- // Close the client so we can reconnect again
- transportData->connected = false;
- transportData->currPacketState = DISCONNECT_TYPE;
- break;
- }
- case MQTT_CLIENT_ON_ERROR:
- {
- xio_close(transportData->xioTransport, NULL, NULL);
- transportData->connected = false;
- transportData->subscribed = false;
- transportData->currPacketState = PACKET_TYPE_ERROR;
- }
- }
- }
+ if (puback->packetId == mqttMsgEntry->msgPacketId)
+ {
+ (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
+ sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportData, IOTHUB_BATCHSTATE_SUCCESS);
+ free(mqttMsgEntry);
+ }
+ currentListEntry = saveListEntry.Flink;
+ }
+ }
+ break;
+ }
+ case MQTT_CLIENT_ON_CONNACK:
+ {
+ const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
+ if (connack != NULL)
+ {
+ if (connack->returnCode == CONNECTION_ACCEPTED)
+ {
+ // The connect packet has been acked
+ transportData->currPacketState = CONNACK_TYPE;
+ }
+ else
+ {
+ LogError("Connection not accepted, return code: %d.", connack->returnCode);
+ (void)mqtt_client_disconnect(transportData->mqttClient);
+ transportData->connected = false;
+ transportData->currPacketState = PACKET_TYPE_ERROR;
+ }
+ }
+ else
+ {
+ LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
+ }
+ break;
+ }
+ case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
+ {
+ const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
+ if (suback != NULL)
+ {
+ if (suback->qosCount == 1)
+ {
+ // The connect packet has been acked
+ transportData->currPacketState = SUBACK_TYPE;
+ }
+ else
+ {
+ LogError("QOS count was not expected: %d.", (int)suback->qosCount);
+ }
+ }
+ break;
+ }
+ case MQTT_CLIENT_ON_PUBLISH_RECV:
+ case MQTT_CLIENT_ON_PUBLISH_REL:
+ {
+ // Currently not used
+ break;
+ }
+ case MQTT_CLIENT_ON_DISCONNECT:
+ {
+ // Close the client so we can reconnect again
+ transportData->connected = false;
+ transportData->currPacketState = DISCONNECT_TYPE;
+ break;
+ }
+ case MQTT_CLIENT_NO_PING_RESPONSE:
+ LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
+ case MQTT_CLIENT_ON_ERROR:
+ {
+ xio_close(transportData->xioTransport, NULL, NULL);
+ transportData->connected = false;
+ transportData->subscribed = false;
+ transportData->currPacketState = PACKET_TYPE_ERROR;
+ }
+ }
+ }
}
const XIO_HANDLE getIoTransportProvider(const char* fqdn, int port)
{
- TLSIO_CONFIG tls_io_config = { fqdn, port };
- const IO_INTERFACE_DESCRIPTION* io_interface_description = platform_get_default_tlsio();
- return (void*)xio_create(io_interface_description, &tls_io_config, NULL/*defaultPrintLogFunction*/);
+ TLSIO_CONFIG tls_io_config = { fqdn, port };
+ const IO_INTERFACE_DESCRIPTION* io_interface_description = platform_get_default_tlsio();
+ return (void*)xio_create(io_interface_description, &tls_io_config, NULL/*defaultPrintLogFunction*/);
}
static int SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transportState)
{
- int result;
+ int result;
- if (transportState->receiveMessages && !transportState->subscribed)
- {
- SUBSCRIBE_PAYLOAD subscribe[] = {
- { STRING_c_str(transportState->mqttMessageTopic), DELIVER_AT_LEAST_ONCE }
- };
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
- if (mqtt_client_subscribe(transportState->mqttClient, transportState->packetId++, subscribe, 1) != 0)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
- result = __LINE__;
- }
- else
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransportMqtt_Subscribe shall return 0.] */
- transportState->subscribed = true;
- transportState->currPacketState = SUBSCRIBE_TYPE;
- result = 0;
- }
- }
- else
- {
- if (transportState->receiveMessages)
- {
- transportState->currPacketState = SUBSCRIBE_TYPE;
- }
- else
- {
- transportState->currPacketState = PUBLISH_TYPE;
- }
- }
- return result;
+ if (transportState->receiveMessages && !transportState->subscribed)
+ {
+ SUBSCRIBE_PAYLOAD subscribe[] = {
+ { STRING_c_str(transportState->mqttMessageTopic), DELIVER_AT_LEAST_ONCE }
+ };
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
+ if (mqtt_client_subscribe(transportState->mqttClient, transportState->packetId++, subscribe, 1) != 0)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
+ result = __LINE__;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransportMqtt_Subscribe shall return 0.] */
+ transportState->subscribed = true;
+ transportState->currPacketState = SUBSCRIBE_TYPE;
+ result = 0;
+ }
+ }
+ else
+ {
+ if (transportState->receiveMessages)
+ {
+ transportState->currPacketState = SUBSCRIBE_TYPE;
+ }
+ else
+ {
+ transportState->currPacketState = PUBLISH_TYPE;
+ }
+ }
+ return result;
}
static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
{
- const unsigned char* result;
+ const unsigned char* result;
- IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
- if (contentType == IOTHUBMESSAGE_BYTEARRAY)
- {
- if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
- {
- LogError("Failure result from IoTHubMessage_GetByteArray");
- result = NULL;
- *length = 0;
- }
- }
- else if (contentType == IOTHUBMESSAGE_STRING)
- {
- result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
- if (result == NULL)
- {
- LogError("Failure result from IoTHubMessage_GetString");
- result = NULL;
- *length = 0;
- }
- else
- {
- *length = strlen((const char*)result);
- }
- }
- else
- {
- result = NULL;
- *length = 0;
- }
- return result;
+ IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
+ if (contentType == IOTHUBMESSAGE_BYTEARRAY)
+ {
+ if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
+ {
+ LogError("Failure result from IoTHubMessage_GetByteArray");
+ result = NULL;
+ *length = 0;
+ }
+ }
+ else if (contentType == IOTHUBMESSAGE_STRING)
+ {
+ result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
+ if (result == NULL)
+ {
+ LogError("Failure result from IoTHubMessage_GetString");
+ result = NULL;
+ *length = 0;
+ }
+ else
+ {
+ *length = strlen((const char*)result);
+ }
+ }
+ else
+ {
+ result = NULL;
+ *length = 0;
+ }
+ return result;
}
static STRING_HANDLE ConstructSasToken(const char* iothubName, const char* iotHubSuffix, const char* deviceId)
{
- STRING_HANDLE result;
- size_t len = strlen(iothubName);
- len += strlen(iotHubSuffix);
- len += strlen(deviceId);
+ STRING_HANDLE result;
+ size_t len = strlen(iothubName);
+ len += strlen(iotHubSuffix);
+ len += strlen(deviceId);
- char* sasToken = malloc(len + SAS_TOKEN_DEFAULT_LEN + 1);
- if (sasToken == NULL)
- {
- result = NULL;
- }
- else
- {
- (void)sprintf(sasToken, "%s.%s/devices/%s", iothubName, iotHubSuffix, deviceId);
- result = STRING_construct(sasToken);
- free(sasToken);
- }
- return result;
+ char* sasToken = malloc(len + SAS_TOKEN_DEFAULT_LEN + 1);
+ if (sasToken == NULL)
+ {
+ result = NULL;
+ }
+ else
+ {
+ (void)sprintf(sasToken, "%s.%s/devices/%s", iothubName, iotHubSuffix, deviceId);
+ result = STRING_construct(sasToken);
+ free(sasToken);
+ }
+ return result;
}
static STRING_HANDLE ConstructEventTopic(const char* deviceId)
{
- STRING_HANDLE result;
- size_t len = strlen(deviceId);
+ STRING_HANDLE result;
+ size_t len = strlen(deviceId);
- char* eventTopic = malloc(len + EVENT_TOPIC_DEFAULT_LEN + 1);
- if (eventTopic == NULL)
- {
- result = NULL;
- }
- else
- {
- (void)sprintf(eventTopic, DEVICE_DEVICE_TOPIC, deviceId);
- result = STRING_construct(eventTopic);
- free(eventTopic);
- }
- return result;
+ char* eventTopic = malloc(len + EVENT_TOPIC_DEFAULT_LEN + 1);
+ if (eventTopic == NULL)
+ {
+ result = NULL;
+ }
+ else
+ {
+ (void)sprintf(eventTopic, DEVICE_DEVICE_TOPIC, deviceId);
+ result = STRING_construct(eventTopic);
+ free(eventTopic);
+ }
+ return result;
}
static STRING_HANDLE ConstructMessageTopic(const char* deviceId)
{
- STRING_HANDLE result;
- size_t len = strlen(deviceId);
+ STRING_HANDLE result;
+ size_t len = strlen(deviceId);
- char* messageTopic = malloc(len + 32 + 1);
- if (messageTopic == NULL)
- {
- result = NULL;
- }
- else
- {
- (void)sprintf(messageTopic, DEVICE_MSG_TOPIC, deviceId);
- result = STRING_construct(messageTopic);
- free(messageTopic);
- }
- return result;
+ char* messageTopic = malloc(len + 32 + 1);
+ if (messageTopic == NULL)
+ {
+ result = NULL;
+ }
+ else
+ {
+ (void)sprintf(messageTopic, DEVICE_MSG_TOPIC, deviceId);
+ result = STRING_construct(messageTopic);
+ free(messageTopic);
+ }
+ return result;
}
static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transportState)
{
- int result;
+ int result;
- if (transportState->xioTransport == NULL)
- {
- // construct address
- const char* hostAddress = STRING_c_str(transportState->hostAddress);
- const char* hostName = strstr(hostAddress, "//");
- if (hostName == NULL)
- {
- hostName = hostAddress;
- }
- else
- {
- // Increment beyond the double backslash
- hostName += 2;
- }
- transportState->xioTransport = getIoTransportProvider(hostName, transportState->portNum);
- if (transportState->xioTransport == NULL)
- {
- LogError("Unable to create the lower level TLS layer.");
- result = __LINE__;
- }
- else
- {
- result = 0;
- }
- }
- else
- {
- result = 0;
- }
- return result;
+ if (transportState->xioTransport == NULL)
+ {
+ // construct address
+ const char* hostAddress = STRING_c_str(transportState->hostAddress);
+ transportState->xioTransport = getIoTransportProvider(hostAddress, transportState->portNum);
+ if (transportState->xioTransport == NULL)
+ {
+ LogError("Unable to create the lower level TLS layer.");
+ result = __LINE__;
+ }
+ else
+ {
+ result = 0;
+ }
+ }
+ else
+ {
+ result = 0;
+ }
+ return result;
}
static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transportState)
{
- int result;
+ int result;
- // Construct SAS token
- size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
- size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
+ // Construct SAS token
+ size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
+ size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
- // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
- STRING_HANDLE emptyKeyName = STRING_new();
+ // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
+ STRING_HANDLE emptyKeyName = STRING_new();
if (emptyKeyName == NULL)
{
result = __LINE__;
@@ -679,102 +671,102 @@
STRING_delete(emptyKeyName);
STRING_delete(sasToken);
}
- return result;
+ return result;
}
static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transportState)
{
- int result = 0;
+ int result = 0;
- // Make sure we're not destroying the object
- if (!transportState->destroyCalled)
- {
- // If we are not connected then check to see if we need
- // to back off the connecting to the server
- if (!transportState->connected)
- {
- // Default makeConnection as true if something goes wrong we'll make the connection
- bool makeConnection = true;
- // If we've failed for FAILED_CONN_BACKOFF_VALUE straight times them let's slow down connection
- // to the service
- if (transportState->connectFailCount > FAILED_CONN_BACKOFF_VALUE)
- {
- uint64_t currentTick;
- if (tickcounter_get_current_ms(g_msgTickCounter, ¤tTick) == 0)
- {
- if ( ((currentTick - transportState->connectTick)/1000) <= DEFAULT_CONNECTION_INTERVAL)
- {
- result = __LINE__;
- makeConnection = false;
- }
- }
- }
+ // Make sure we're not destroying the object
+ if (!transportState->destroyCalled)
+ {
+ // If we are not connected then check to see if we need
+ // to back off the connecting to the server
+ if (!transportState->connected)
+ {
+ // Default makeConnection as true if something goes wrong we'll make the connection
+ bool makeConnection = true;
+ // If we've failed for FAILED_CONN_BACKOFF_VALUE straight times them let's slow down connection
+ // to the service
+ if (transportState->connectFailCount > FAILED_CONN_BACKOFF_VALUE)
+ {
+ uint64_t currentTick;
+ if (tickcounter_get_current_ms(g_msgTickCounter, ¤tTick) == 0)
+ {
+ if ( ((currentTick - transportState->connectTick)/1000) <= DEFAULT_CONNECTION_INTERVAL)
+ {
+ result = __LINE__;
+ makeConnection = false;
+ }
+ }
+ }
- if (makeConnection)
- {
- (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->connectTick);
- if (SendMqttConnectMsg(transportState) != 0)
- {
- transportState->connectFailCount++;
- result = __LINE__;
- }
- else
- {
- transportState->connectFailCount = 0;
- transportState->connected = true;
- result = 0;
- }
- }
- }
+ if (makeConnection)
+ {
+ (void)tickcounter_get_current_ms(g_msgTickCounter, &transportState->connectTick);
+ if (SendMqttConnectMsg(transportState) != 0)
+ {
+ transportState->connectFailCount++;
+ result = __LINE__;
+ }
+ else
+ {
+ transportState->connectFailCount = 0;
+ transportState->connected = true;
+ result = 0;
+ }
+ }
+ }
- if (transportState->connected)
- {
- // We are connected and not being closed, so does SAS need to reconnect?
- uint64_t current_time;
- (void)tickcounter_get_current_ms(g_msgTickCounter, ¤t_time);
- if ((current_time - transportState->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
- {
- (void)mqtt_client_disconnect(transportState->mqttClient);
- transportState->subscribed = false;
- transportState->connected = false;
- transportState->currPacketState = UNKNOWN_TYPE;
- }
- }
- }
- return result;
+ if (transportState->connected)
+ {
+ // We are connected and not being closed, so does SAS need to reconnect?
+ uint64_t current_time;
+ (void)tickcounter_get_current_ms(g_msgTickCounter, ¤t_time);
+ if ((current_time - transportState->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
+ {
+ (void)mqtt_client_disconnect(transportState->mqttClient);
+ transportState->subscribed = false;
+ transportState->connected = false;
+ transportState->currPacketState = UNKNOWN_TYPE;
+ }
+ }
+ }
+ return result;
}
static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
{
- STRING_HANDLE result;
+ STRING_HANDLE result;
- size_t len = strlen(upperConfig->iotHubName)+strlen(upperConfig->iotHubSuffix)+strlen(upperConfig->deviceId)+strlen(CLIENT_DEVICE_TYPE_PREFIX)+strlen(IOTHUB_SDK_VERSION);
- char* eventTopic = malloc(len + BUILD_CONFIG_USERNAME + 1);
- if (eventTopic == NULL)
- {
- result = NULL;
- }
- else
- {
- (void)sprintf(eventTopic, "%s.%s/%s/DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
- result = STRING_construct(eventTopic);
- free(eventTopic);
- }
- return result;
+ size_t len = strlen(upperConfig->iotHubName)+strlen(upperConfig->iotHubSuffix)+strlen(upperConfig->deviceId)+strlen(CLIENT_DEVICE_TYPE_PREFIX)+strlen(IOTHUB_SDK_VERSION);
+ char* eventTopic = malloc(len + BUILD_CONFIG_USERNAME + 1);
+ if (eventTopic == NULL)
+ {
+ result = NULL;
+ }
+ else
+ {
+ (void)sprintf(eventTopic, "%s.%s/%s/DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
+ result = STRING_construct(eventTopic);
+ free(eventTopic);
+ }
+ return result;
}
static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
{
- PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
- if (state == NULL)
- {
- LogError("Could not create MQTT transport state. Memory allocation failed.");
- }
- else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
- {
- free(state);
- state = NULL;
- }
+ PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
+ if (state == NULL)
+ {
+ LogError("Could not create MQTT transport state. Memory allocation failed.");
+ }
+ else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
+ {
+ free(state);
+ state = NULL;
+ }
else
{
state->device_key = NULL;
@@ -885,52 +877,52 @@
}
}
}
- return state;
+ return state;
}
-extern TRANSPORT_LL_HANDLE IoTHubTransportMqtt_Create(const IOTHUBTRANSPORT_CONFIG* config)
+static TRANSPORT_LL_HANDLE IoTHubTransportMqtt_Create(const IOTHUBTRANSPORT_CONFIG* config)
{
- PMQTTTRANSPORT_HANDLE_DATA result;
- size_t deviceIdSize;
+ PMQTTTRANSPORT_HANDLE_DATA result;
+ size_t deviceIdSize;
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- if (config == NULL)
- {
- LogError("Invalid Argument: Config Parameter is NULL.");
- result = NULL;
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- else if (config->upperConfig == NULL || config->upperConfig->protocol == NULL || config->upperConfig->deviceId == NULL || ((config->upperConfig->deviceKey == NULL) && (config->upperConfig->deviceSasToken == NULL)) ||
- config->upperConfig->iotHubName == NULL || config->upperConfig->iotHubSuffix == NULL)
- {
- LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
- result = NULL;
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- else if (config->waitingToSend == NULL)
- {
- LogError("Invalid Argument: waitingToSend is NULL)");
- result = NULL;
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_006: [If the upperConfig's variables deviceId is an empty strings or length is greater then 128 then IoTHubTransportMqtt_Create shall return NULL.] */
- else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
- {
- LogError("Invalid Argument: DeviceId is of an invalid size");
- result = NULL;
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
- {
- LogError("Invalid Argument: deviceKey is empty");
- result = NULL;
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
- {
- LogError("Invalid Argument: deviceSasToken is empty");
- result = NULL;
- }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ if (config == NULL)
+ {
+ LogError("Invalid Argument: Config Parameter is NULL.");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ else if (config->upperConfig == NULL || config->upperConfig->protocol == NULL || config->upperConfig->deviceId == NULL || ((config->upperConfig->deviceKey == NULL) && (config->upperConfig->deviceSasToken == NULL)) ||
+ config->upperConfig->iotHubName == NULL || config->upperConfig->iotHubSuffix == NULL)
+ {
+ LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ else if (config->waitingToSend == NULL)
+ {
+ LogError("Invalid Argument: waitingToSend is NULL)");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_006: [If the upperConfig's variables deviceId is an empty strings or length is greater then 128 then IoTHubTransportMqtt_Create shall return NULL.] */
+ else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
+ {
+ LogError("Invalid Argument: DeviceId is of an invalid size");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
+ {
+ LogError("Invalid Argument: deviceKey is empty");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
+ else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
+ {
+ LogError("Invalid Argument: deviceSasToken is empty");
+ result = NULL;
+ }
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransportMqtt_Create shall return NULL.] */
else if ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL))
{
@@ -938,411 +930,431 @@
result = NULL;
}
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransportMqtt_Create shall return NULL.] */
- else if (strlen(config->upperConfig->iotHubName) == 0)
- {
- LogError("Invalid Argument: iotHubName is empty");
- result = NULL;
- }
- else
- {
- result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
- if (result != NULL)
- {
- g_msgTickCounter = tickcounter_create();
- }
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransportMqtt_Create shall return NULL.] */
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransportMqtt_Create shall return a non-NULL value.] */
- return result;
+ else if (strlen(config->upperConfig->iotHubName) == 0)
+ {
+ LogError("Invalid Argument: iotHubName is empty");
+ result = NULL;
+ }
+ else
+ {
+ result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
+ if (result != NULL)
+ {
+ g_msgTickCounter = tickcounter_create();
+ }
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransportMqtt_Create shall return NULL.] */
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransportMqtt_Create shall return a non-NULL value.] */
+ return result;
}
+/*forward declaration*/
+static void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle);
+
static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transportState)
{
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_013: [If the parameter subscribe is true then IoTHubTransportMqtt_Destroy shall call IoTHubTransportMqtt_Unsubscribe.] */
- if (transportState->subscribed)
- {
- IoTHubTransportMqtt_Unsubscribe(transportState);
- }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_013: [If the parameter subscribe is true then IoTHubTransportMqtt_Destroy shall call IoTHubTransportMqtt_Unsubscribe.] */
+ if (transportState->subscribed)
+ {
+ IoTHubTransportMqtt_Unsubscribe(transportState);
+ }
- (void)mqtt_client_disconnect(transportState->mqttClient);
- xio_destroy(transportState->xioTransport);
- transportState->xioTransport = NULL;
+ (void)mqtt_client_disconnect(transportState->mqttClient);
+ xio_destroy(transportState->xioTransport);
+ transportState->xioTransport = NULL;
- transportState->connected = false;
- transportState->currPacketState = DISCONNECT_TYPE;
+ transportState->connected = false;
+ transportState->currPacketState = DISCONNECT_TYPE;
}
-void IoTHubTransportMqtt_Destroy(TRANSPORT_LL_HANDLE handle)
+static void IoTHubTransportMqtt_Destroy(TRANSPORT_LL_HANDLE handle)
{
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
- PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
- if (transportState != NULL)
- {
- transportState->destroyCalled = true;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
+ PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
+ if (transportState != NULL)
+ {
+ transportState->destroyCalled = true;
- DisconnectFromClient(transportState);
+ DisconnectFromClient(transportState);
- //Empty the Waiting for Ack Messages.
- while (!DList_IsListEmpty(&transportState->waitingForAck))
- {
- PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
- MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
- sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
- free(mqttMsgEntry);
- }
+ //Empty the Waiting for Ack Messages.
+ while (!DList_IsListEmpty(&transportState->waitingForAck))
+ {
+ PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
+ MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
+ sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
+ free(mqttMsgEntry);
+ }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
- mqtt_client_deinit(transportState->mqttClient);
- STRING_delete(transportState->mqttEventTopic);
- STRING_delete(transportState->mqttMessageTopic);
- STRING_delete(transportState->device_id);
- STRING_delete(transportState->device_key);
- STRING_delete(transportState->sasTokenSr);
- STRING_delete(transportState->hostAddress);
- STRING_delete(transportState->configPassedThroughUsername);
- tickcounter_destroy(g_msgTickCounter);
- free(transportState);
- }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
+ mqtt_client_deinit(transportState->mqttClient);
+ STRING_delete(transportState->mqttEventTopic);
+ STRING_delete(transportState->mqttMessageTopic);
+ STRING_delete(transportState->device_id);
+ STRING_delete(transportState->device_key);
+ STRING_delete(transportState->sasTokenSr);
+ STRING_delete(transportState->hostAddress);
+ STRING_delete(transportState->configPassedThroughUsername);
+ tickcounter_destroy(g_msgTickCounter);
+ free(transportState);
+ }
}
-int IoTHubTransportMqtt_Subscribe(IOTHUB_DEVICE_HANDLE handle)
+static int IoTHubTransportMqtt_Subscribe(IOTHUB_DEVICE_HANDLE handle)
{
- int result;
- PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
- if (transportState == NULL)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
- LogError("Invalid handle parameter. NULL.");
- result = __LINE__;
- }
- else
- {
- /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the Message Topic.] */
- transportState->receiveMessages = true;
- /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_035: [If current packet state is not CONNACT, DISCONNECT_TYPE, or PACKET_TYPE_ERROR then IoTHubTransportMqtt_Subscribe shall set the packet state to SUBSCRIBE_TYPE.]*/
- if (transportState->currPacketState != CONNACK_TYPE &&
- transportState->currPacketState != CONNECT_TYPE &&
- transportState->currPacketState != DISCONNECT_TYPE &&
- transportState->currPacketState != PACKET_TYPE_ERROR)
- {
- transportState->currPacketState = SUBSCRIBE_TYPE;
- }
- result = 0;
- }
- return result;
+ int result;
+ PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
+ if (transportState == NULL)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransportMqtt_Subscribe shall return a non-zero value.] */
+ LogError("Invalid handle parameter. NULL.");
+ result = __LINE__;
+ }
+ else
+ {
+ /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransportMqtt_Subscribe shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the Message Topic.] */
+ transportState->receiveMessages = true;
+ /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_035: [If current packet state is not CONNACT, DISCONNECT_TYPE, or PACKET_TYPE_ERROR then IoTHubTransportMqtt_Subscribe shall set the packet state to SUBSCRIBE_TYPE.]*/
+ if (transportState->currPacketState != CONNACK_TYPE &&
+ transportState->currPacketState != CONNECT_TYPE &&
+ transportState->currPacketState != DISCONNECT_TYPE &&
+ transportState->currPacketState != PACKET_TYPE_ERROR)
+ {
+ transportState->currPacketState = SUBSCRIBE_TYPE;
+ }
+ result = 0;
+ }
+ return result;
}
-void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
+static void IoTHubTransportMqtt_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
{
- PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
- if (transportState != NULL && transportState->subscribed)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
- const char* unsubscribe[] = { STRING_c_str(transportState->mqttMessageTopic) };
- (void)mqtt_client_unsubscribe(transportState->mqttClient, transportState->packetId++, unsubscribe, 1);
- transportState->subscribed = false;
- transportState->receiveMessages = false;
- }
- else
- {
- LogError("Invalid argument to unsubscribe (NULL).");
- }
+ PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
+ if (transportState != NULL && transportState->subscribed)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
+ const char* unsubscribe[] = { STRING_c_str(transportState->mqttMessageTopic) };
+ (void)mqtt_client_unsubscribe(transportState->mqttClient, transportState->packetId++, unsubscribe, 1);
+ transportState->subscribed = false;
+ transportState->receiveMessages = false;
+ }
+ else
+ {
+ LogError("Invalid argument to unsubscribe (NULL).");
+ }
}
-extern void IoTHubTransportMqtt_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
+static void IoTHubTransportMqtt_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
{
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransportMqtt_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
- PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
- if (transportState != NULL && iotHubClientHandle != NULL)
- {
- transportState->llClientHandle = iotHubClientHandle;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransportMqtt_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
+ PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
+ if (transportState != NULL && iotHubClientHandle != NULL)
+ {
+ transportState->llClientHandle = iotHubClientHandle;
- if (InitializeConnection(transportState) != 0)
- {
- // Don't want to flood the logs with failures here
- }
- else
- {
- if (transportState->currPacketState == CONNACK_TYPE || transportState->currPacketState == SUBSCRIBE_TYPE)
- {
- (void)SubscribeToMqttProtocol(transportState);
- }
- else if (transportState->currPacketState == SUBACK_TYPE)
- {
- // Publish can be called now
- transportState->currPacketState = PUBLISH_TYPE;
- }
- else if (transportState->currPacketState == PUBLISH_TYPE)
- {
- PDLIST_ENTRY currentListEntry = transportState->waitingForAck.Flink;
- while (currentListEntry != &transportState->waitingForAck)
- {
- MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
- DLIST_ENTRY nextListEntry;
- nextListEntry.Flink = currentListEntry->Flink;
+ if (InitializeConnection(transportState) != 0)
+ {
+ // Don't want to flood the logs with failures here
+ }
+ else
+ {
+ if (transportState->currPacketState == CONNACK_TYPE || transportState->currPacketState == SUBSCRIBE_TYPE)
+ {
+ (void)SubscribeToMqttProtocol(transportState);
+ }
+ else if (transportState->currPacketState == SUBACK_TYPE)
+ {
+ // Publish can be called now
+ transportState->currPacketState = PUBLISH_TYPE;
+ }
+ else if (transportState->currPacketState == PUBLISH_TYPE)
+ {
+ PDLIST_ENTRY currentListEntry = transportState->waitingForAck.Flink;
+ while (currentListEntry != &transportState->waitingForAck)
+ {
+ MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
+ DLIST_ENTRY nextListEntry;
+ nextListEntry.Flink = currentListEntry->Flink;
- uint64_t current_ms;
- (void)tickcounter_get_current_ms(g_msgTickCounter, ¤t_ms);
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_033: [IoTHubTransportMqtt_DoWork shall iterate through the Waiting Acknowledge messages looking for any message that has been waiting longer than 2 min.]*/
- if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransportMqtt_DoWork has resent the message two times then it shall fail the message] */
- if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
- {
- (void)DList_RemoveEntryList(currentListEntry);
- sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
- free(mqttMsgEntry);
- }
- else
- {
- size_t messageLength;
- const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
- if (messageLength == 0 || messagePayload == NULL)
- {
- LogError("Failure from creating Message IoTHubMessage_GetData");
- }
- else
- {
- if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
- {
- (void)DList_RemoveEntryList(currentListEntry);
- sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
- free(mqttMsgEntry);
- }
- }
- }
- }
- currentListEntry = nextListEntry.Flink;
- }
+ uint64_t current_ms;
+ (void)tickcounter_get_current_ms(g_msgTickCounter, ¤t_ms);
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_033: [IoTHubTransportMqtt_DoWork shall iterate through the Waiting Acknowledge messages looking for any message that has been waiting longer than 2 min.]*/
+ if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransportMqtt_DoWork has resent the message two times then it shall fail the message] */
+ if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
+ {
+ (void)DList_RemoveEntryList(currentListEntry);
+ sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
+ free(mqttMsgEntry);
+ }
+ else
+ {
+ size_t messageLength;
+ const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
+ if (messageLength == 0 || messagePayload == NULL)
+ {
+ LogError("Failure from creating Message IoTHubMessage_GetData");
+ }
+ else
+ {
+ if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
+ {
+ (void)DList_RemoveEntryList(currentListEntry);
+ sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
+ free(mqttMsgEntry);
+ }
+ }
+ }
+ }
+ currentListEntry = nextListEntry.Flink;
+ }
- currentListEntry = transportState->waitingToSend->Flink;
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the waitingToSend DLIST passed in config structure.] */
- while (currentListEntry != transportState->waitingToSend)
- {
- IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
- DLIST_ENTRY savedFromCurrentListEntry;
- savedFromCurrentListEntry.Flink = currentListEntry->Flink;
+ currentListEntry = transportState->waitingToSend->Flink;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the waitingToSend DLIST passed in config structure.] */
+ while (currentListEntry != transportState->waitingToSend)
+ {
+ IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
+ DLIST_ENTRY savedFromCurrentListEntry;
+ savedFromCurrentListEntry.Flink = currentListEntry->Flink;
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the waitingToSend DLIST passed in config structure.] */
- size_t messageLength;
- const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
- if (messageLength == 0 || messagePayload == NULL)
- {
- LogError("Failure result from IoTHubMessage_GetData");
- }
- else
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_029: [IoTHubTransportMqtt_DoWork shall create a MQTT_MESSAGE_HANDLE and pass this to a call to mqtt_client_publish.] */
- MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
- if (mqttMsgEntry == NULL)
- {
- LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
- }
- else
- {
- mqttMsgEntry->retryCount = 0;
- mqttMsgEntry->msgPacketId = transportState->packetId;
- mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransportMqtt_DoWork shall inspect the waitingToSend DLIST passed in config structure.] */
+ size_t messageLength;
+ const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
+ if (messageLength == 0 || messagePayload == NULL)
+ {
+ LogError("Failure result from IoTHubMessage_GetData");
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_029: [IoTHubTransportMqtt_DoWork shall create a MQTT_MESSAGE_HANDLE and pass this to a call to mqtt_client_publish.] */
+ MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
+ if (mqttMsgEntry == NULL)
+ {
+ LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
+ }
+ else
+ {
+ mqttMsgEntry->retryCount = 0;
+ mqttMsgEntry->msgPacketId = transportState->packetId;
+ mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
- if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
- {
- (void)(DList_RemoveEntryList(currentListEntry));
- sendMsgComplete(iothubMsgList, transportState, IOTHUB_BATCHSTATE_FAILED);
- free(mqttMsgEntry);
- }
- else
- {
- (void)(DList_RemoveEntryList(currentListEntry));
- DList_InsertTailList(&(transportState->waitingForAck), &(mqttMsgEntry->entry));
- }
- }
- }
- currentListEntry = savedFromCurrentListEntry.Flink;
- }
- }
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransportMqtt_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
- mqtt_client_dowork(transportState->mqttClient);
- }
- }
+ if (publishMqttMessage(transportState, mqttMsgEntry, messagePayload, messageLength) != 0)
+ {
+ (void)(DList_RemoveEntryList(currentListEntry));
+ sendMsgComplete(iothubMsgList, transportState, IOTHUB_BATCHSTATE_FAILED);
+ free(mqttMsgEntry);
+ }
+ else
+ {
+ (void)(DList_RemoveEntryList(currentListEntry));
+ DList_InsertTailList(&(transportState->waitingForAck), &(mqttMsgEntry->entry));
+ }
+ }
+ }
+ currentListEntry = savedFromCurrentListEntry.Flink;
+ }
+ }
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransportMqtt_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
+ mqtt_client_dowork(transportState->mqttClient);
+ }
+ }
}
-IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
+static IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
{
- IOTHUB_CLIENT_RESULT result;
+ IOTHUB_CLIENT_RESULT result;
- if (handle == NULL || iotHubClientStatus == NULL)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
- LogError("invalid arument.");
- result = IOTHUB_CLIENT_INVALID_ARG;
- }
- else
- {
- MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
- if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->waitingForAck)))
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_025: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_BUSY if there are currently event items to be sent or being sent.] */
- *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
- }
- else
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_024: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_IDLE if there are currently no event items to be sent or being sent.] */
- *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
- }
- result = IOTHUB_CLIENT_OK;
- }
- return result;
+ if (handle == NULL || iotHubClientStatus == NULL)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
+ LogError("invalid arument.");
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ }
+ else
+ {
+ MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
+ if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->waitingForAck)))
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_025: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_BUSY if there are currently event items to be sent or being sent.] */
+ *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_024: [IoTHubTransportMqtt_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_IDLE if there are currently no event items to be sent or being sent.] */
+ *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
+ }
+ result = IOTHUB_CLIENT_OK;
+ }
+ return result;
}
-IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
+static IOTHUB_CLIENT_RESULT IoTHubTransportMqtt_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
{
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
- IOTHUB_CLIENT_RESULT result;
- if (
- (handle == NULL) ||
- (option == NULL) ||
- (value == NULL)
- )
- {
- result = IOTHUB_CLIENT_INVALID_ARG;
- LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
- }
- else
- {
- MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
- /* 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.] */
- if (strcmp("logtrace", option) == 0)
- {
- bool* traceVal = (bool*)value;
- mqtt_client_set_trace(transportState->mqttClient, *traceVal, *traceVal);
- result = IOTHUB_CLIENT_OK;
- }
- else if (strcmp("keepalive", option) == 0)
- {
- /* 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.] */
- int* keepAliveOption = (int*)value;
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_037 : [If the option parameter is set to supplied int_ptr keepalive is the same value as the existing keepalive then IoTHubTransportMqtt_SetOption shall do nothing.] */
- if (*keepAliveOption != transportState->keepAliveValue)
- {
- transportState->keepAliveValue = *keepAliveOption;
- if (transportState->connected)
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is connected when the keepalive is set then IoTHubTransportMqtt_SetOption shall disconnect and reconnect with the specified keepalive value.] */
- DisconnectFromClient(transportState);
- }
- }
- result = IOTHUB_CLIENT_OK;
- }
- else
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_032: [IoTHubTransportMqtt_SetOption shall pass down the option to xio_setoption if the option parameter is not a known option string for the MQTT transport.] */
- if (GetTransportProviderIfNecessary(transportState) == 0)
- {
- if (xio_setoption(transportState->xioTransport, option, value) == 0)
- {
- result = IOTHUB_CLIENT_OK;
- }
- else
- {
- /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
- result = IOTHUB_CLIENT_INVALID_ARG;
- }
- }
- else
- {
- result = IOTHUB_CLIENT_ERROR;
- }
- }
- }
- return result;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
+ IOTHUB_CLIENT_RESULT result;
+ if (
+ (handle == NULL) ||
+ (option == NULL) ||
+ (value == NULL)
+ )
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
+ }
+ else
+ {
+ MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
+ /* 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.] */
+ if (strcmp("logtrace", option) == 0)
+ {
+ bool* traceVal = (bool*)value;
+ mqtt_client_set_trace(transportState->mqttClient, *traceVal, *traceVal);
+ result = IOTHUB_CLIENT_OK;
+ }
+ else if (strcmp("keepalive", option) == 0)
+ {
+ /* 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.] */
+ int* keepAliveOption = (int*)value;
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_037 : [If the option parameter is set to supplied int_ptr keepalive is the same value as the existing keepalive then IoTHubTransportMqtt_SetOption shall do nothing.] */
+ if (*keepAliveOption != transportState->keepAliveValue)
+ {
+ transportState->keepAliveValue = *keepAliveOption;
+ if (transportState->connected)
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is connected when the keepalive is set then IoTHubTransportMqtt_SetOption shall disconnect and reconnect with the specified keepalive value.] */
+ DisconnectFromClient(transportState);
+ }
+ }
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_032: [IoTHubTransportMqtt_SetOption shall pass down the option to xio_setoption if the option parameter is not a known option string for the MQTT transport.] */
+ if (GetTransportProviderIfNecessary(transportState) == 0)
+ {
+ if (xio_setoption(transportState->xioTransport, option, value) == 0)
+ {
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransportMqtt_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ }
+ }
+ else
+ {
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ }
+ }
+ return result;
}
-IOTHUB_DEVICE_HANDLE IoTHubTransportMqtt_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
+static IOTHUB_DEVICE_HANDLE IoTHubTransportMqtt_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
{
- IOTHUB_DEVICE_HANDLE result;
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransportMqtt_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransportMqtt_Register shall return NULL if device or waitingToSend are NULL.]
- if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
- {
+ IOTHUB_DEVICE_HANDLE result;
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransportMqtt_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransportMqtt_Register shall return NULL if device or waitingToSend are NULL.]
+ if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
+ {
LogError("IoTHubTransportMqtt_Register: handle, device or waitingToSend is NULL.");
result = NULL;
- }
- else
- {
- MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
+ }
+ else
+ {
+ MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)handle;
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransportMqtt_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
- if (device->deviceId == NULL)
- {
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransportMqtt_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
+ if (device->deviceId == NULL)
+ {
LogError("IoTHubTransportMqtt_Register: deviceId is NULL.");
result = NULL;
- }
- else if ((device->deviceKey == NULL) && (device->deviceSasToken == NULL))
- {
+ }
+ else if ((device->deviceKey == NULL) && (device->deviceSasToken == NULL))
+ {
LogError("IoTHubTransportMqtt_Register: deviceKey and deviceSasToken are NULL.");
result = NULL;
- }
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransportMqtt_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
- else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
- {
+ }
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransportMqtt_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
+ else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
+ {
LogError("IoTHubTransportMqtt_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
result = NULL;
- }
- else
- {
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_003: [ IoTHubTransportMqtt_Register shall return NULL if deviceId or deviceKey do not match the deviceId and deviceKey passed in during IoTHubTransportMqtt_Create.]
- if (strcmp(STRING_c_str(transportState->device_id), device->deviceId) != 0)
- {
+ }
+ else
+ {
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_003: [ IoTHubTransportMqtt_Register shall return NULL if deviceId or deviceKey do not match the deviceId and deviceKey passed in during IoTHubTransportMqtt_Create.]
+ if (strcmp(STRING_c_str(transportState->device_id), device->deviceId) != 0)
+ {
LogError("IoTHubTransportMqtt_Register: deviceId does not match.");
result = NULL;
- }
- else if ((device->deviceKey != NULL) && (strcmp(STRING_c_str(transportState->device_key), device->deviceKey) != 0))
- {
+ }
+ else if ((device->deviceKey != NULL) && (strcmp(STRING_c_str(transportState->device_key), device->deviceKey) != 0))
+ {
LogError("IoTHubTransportMqtt_Register: deviceKey does not match.");
result = NULL;
- }
- else
- {
- if (transportState->isRegistered == true)
- {
- LogError("Transport already has device registered by id: [%s]", device->deviceId);
- result = NULL;
- }
- else
- {
- transportState->isRegistered = true;
- // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransportMqtt_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
- result = (IOTHUB_DEVICE_HANDLE)handle;
- }
- }
- }
- }
+ }
+ else
+ {
+ if (transportState->isRegistered == true)
+ {
+ LogError("Transport already has device registered by id: [%s]", device->deviceId);
+ result = NULL;
+ }
+ else
+ {
+ transportState->isRegistered = true;
+ // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransportMqtt_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
+ result = (IOTHUB_DEVICE_HANDLE)handle;
+ }
+ }
+ }
+ }
- return result;
+ return result;
}
// Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ IoTHubTransportMqtt_Unregister shall return. ]
-void IoTHubTransportMqtt_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
+static void IoTHubTransportMqtt_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
{
- if (deviceHandle != NULL)
- {
- MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
+ if (deviceHandle != NULL)
+ {
+ MQTTTRANSPORT_HANDLE_DATA* transportState = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
- transportState->isRegistered = false;
- }
+ transportState->isRegistered = false;
+ }
}
-TRANSPORT_PROVIDER myfunc = {
- IoTHubTransportMqtt_SetOption,
- IoTHubTransportMqtt_Create,
- IoTHubTransportMqtt_Destroy,
- IoTHubTransportMqtt_Register,
- IoTHubTransportMqtt_Unregister,
- IoTHubTransportMqtt_Subscribe,
- IoTHubTransportMqtt_Unsubscribe,
- IoTHubTransportMqtt_DoWork,
- IoTHubTransportMqtt_GetSendStatus
+static STRING_HANDLE IoTHubTransportMqtt_GetHostname(TRANSPORT_LL_HANDLE handle)
+{
+ STRING_HANDLE result;
+ /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransportMqtt_GetHostname shall fail and return NULL. ]*/
+ if (handle == NULL)
+ {
+ result = NULL;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransportMqtt_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
+ result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
+ }
+ return result;
+}
+
+static TRANSPORT_PROVIDER myfunc = {
+ IoTHubTransportMqtt_GetHostname,
+ IoTHubTransportMqtt_SetOption,
+ IoTHubTransportMqtt_Create,
+ IoTHubTransportMqtt_Destroy,
+ IoTHubTransportMqtt_Register,
+ IoTHubTransportMqtt_Unregister,
+ IoTHubTransportMqtt_Subscribe,
+ IoTHubTransportMqtt_Unsubscribe,
+ IoTHubTransportMqtt_DoWork,
+ IoTHubTransportMqtt_GetSendStatus
};
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_022: [This function shall return a pointer to a structure of type TRANSPORT_PROVIDER having the following values for its fields: IoTHubTransport_Create = IoTHubTransportMqtt_Create
@@ -1351,7 +1363,7 @@
IoTHubTransport_Unsubscribe = IoTHubTransportMqtt_Unsubscribe
IoTHubTransport_DoWork = IoTHubTransportMqtt_DoWork
IoTHubTransport_SetOption = IoTHubTransportMqtt_SetOption] */
-extern const void* MQTT_Protocol(void)
+extern const TRANSPORT_PROVIDER* MQTT_Protocol(void)
{
- return &myfunc;
+ return &myfunc;
}
