Azure IoT / iothub_mqtt_transport

Microsoft Azure IoTHub client MQTT transport

Dependents:   STM32F746_iothub_client_sample_mqtt FXOS8700CQ_To_Azure_IoT f767zi_mqtt FXOS8700CQ_To_Azure_IoT ... more

iothubtransport_mqtt_common.c@23:84f4c36da8c1, 2017-05-22 (annotated)

Committer:
AzureIoTClient
Date:
Mon May 22 10:34:57 2017 -0700
Revision:
23:84f4c36da8c1
Parent:
22:07fec4d325b6
Child:
24:4096249decf1
1.1.15

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 11:31ebaeb51e1e 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 11:31ebaeb51e1e 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 11:31ebaeb51e1e 3
AzureIoTClient 11:31ebaeb51e1e 4 #include <stdlib.h>
AzureIoTClient 12:658ca6865de2 5 #include <ctype.h>
AzureIoTClient 18:ec8e5e97c6a4 6 #include "azure_c_shared_utility/optimize_size.h"
AzureIoTClient 11:31ebaeb51e1e 7 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 11:31ebaeb51e1e 8
AzureIoTClient 11:31ebaeb51e1e 9 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 11:31ebaeb51e1e 10 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 11:31ebaeb51e1e 11 #include "azure_c_shared_utility/doublylinkedlist.h"
AzureIoTClient 11:31ebaeb51e1e 12 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 11:31ebaeb51e1e 13
AzureIoTClient 11:31ebaeb51e1e 14 #include "iothub_client_ll.h"
AzureIoTClient 11:31ebaeb51e1e 15 #include "iothub_client_options.h"
AzureIoTClient 11:31ebaeb51e1e 16 #include "iothub_client_private.h"
AzureIoTClient 11:31ebaeb51e1e 17 #include "azure_umqtt_c/mqtt_client.h"
AzureIoTClient 11:31ebaeb51e1e 18 #include "azure_c_shared_utility/sastoken.h"
AzureIoTClient 11:31ebaeb51e1e 19 #include "azure_c_shared_utility/tickcounter.h"
AzureIoTClient 11:31ebaeb51e1e 20
AzureIoTClient 11:31ebaeb51e1e 21 #include "azure_c_shared_utility/tlsio.h"
AzureIoTClient 11:31ebaeb51e1e 22 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 11:31ebaeb51e1e 23
AzureIoTClient 11:31ebaeb51e1e 24 #include "azure_c_shared_utility/string_tokenizer.h"
AzureIoTClient 20:594780be216d 25 #include "azure_c_shared_utility/shared_util_options.h"
AzureIoTClient 22:07fec4d325b6 26 #include "azure_c_shared_utility/urlencode.h"
AzureIoTClient 11:31ebaeb51e1e 27 #include "iothub_client_version.h"
AzureIoTClient 11:31ebaeb51e1e 28
AzureIoTClient 11:31ebaeb51e1e 29 #include "iothubtransport_mqtt_common.h"
AzureIoTClient 11:31ebaeb51e1e 30
AzureIoTClient 11:31ebaeb51e1e 31 #include <stdarg.h>
AzureIoTClient 11:31ebaeb51e1e 32 #include <stdio.h>
AzureIoTClient 11:31ebaeb51e1e 33
AzureIoTClient 11:31ebaeb51e1e 34 #include <limits.h>
AzureIoTClient 12:658ca6865de2 35 #include <inttypes.h>
AzureIoTClient 11:31ebaeb51e1e 36
AzureIoTClient 11:31ebaeb51e1e 37 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 11:31ebaeb51e1e 38 #define SAS_REFRESH_MULTIPLIER .8
AzureIoTClient 11:31ebaeb51e1e 39 #define EPOCH_TIME_T_VALUE 0
AzureIoTClient 11:31ebaeb51e1e 40 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
AzureIoTClient 11:31ebaeb51e1e 41 #define BUILD_CONFIG_USERNAME 24
AzureIoTClient 11:31ebaeb51e1e 42 #define SAS_TOKEN_DEFAULT_LEN 10
AzureIoTClient 11:31ebaeb51e1e 43 #define RESEND_TIMEOUT_VALUE_MIN 1*60
AzureIoTClient 11:31ebaeb51e1e 44 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 11:31ebaeb51e1e 45 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 11:31ebaeb51e1e 46 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 12:658ca6865de2 47 #define STATUS_CODE_FAILURE_VALUE 500
AzureIoTClient 12:658ca6865de2 48 #define STATUS_CODE_TIMEOUT_VALUE 408
AzureIoTClient 17:774695cb8554 49 #define ERROR_TIME_FOR_RETRY_SECS 5 // We won't retry more than once every 5 seconds
AzureIoTClient 12:658ca6865de2 50
AzureIoTClient 12:658ca6865de2 51 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 52 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 53
AzureIoTClient 12:658ca6865de2 54 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 55 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 56
AzureIoTClient 11:31ebaeb51e1e 57 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 58 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 59
AzureIoTClient 12:658ca6865de2 60 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 61 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 62
AzureIoTClient 12:658ca6865de2 63 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 64
AzureIoTClient 11:31ebaeb51e1e 65 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 66 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 67 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 14:4dc2b011be33 68 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
AzureIoTClient 12:658ca6865de2 69
AzureIoTClient 12:658ca6865de2 70 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 71
AzureIoTClient 18:ec8e5e97c6a4 72 static const char* MESSAGE_ID_PROPERTY = "mid";
AzureIoTClient 18:ec8e5e97c6a4 73 static const char* CORRELATION_ID_PROPERTY = "cid";
AzureIoTClient 18:ec8e5e97c6a4 74
AzureIoTClient 11:31ebaeb51e1e 75 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 76 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 77 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 78 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 79 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 80 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 81 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 82
AzureIoTClient 17:774695cb8554 83 DEFINE_ENUM_STRINGS(MQTT_CLIENT_EVENT_ERROR, MQTT_CLIENT_EVENT_ERROR_VALUES)
AzureIoTClient 17:774695cb8554 84
AzureIoTClient 11:31ebaeb51e1e 85 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 86 {
AzureIoTClient 11:31ebaeb51e1e 87 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 88 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 89 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 90
AzureIoTClient 11:31ebaeb51e1e 91 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 92 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 93 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 94 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 95 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 96 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 97 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 98 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 99 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 100 };
AzureIoTClient 11:31ebaeb51e1e 101
AzureIoTClient 12:658ca6865de2 102 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 103 {
AzureIoTClient 12:658ca6865de2 104 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 105 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 106 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 107
AzureIoTClient 11:31ebaeb51e1e 108 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 109 {
AzureIoTClient 11:31ebaeb51e1e 110 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 111 X509,
AzureIoTClient 11:31ebaeb51e1e 112 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 113 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 114 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 115
AzureIoTClient 12:658ca6865de2 116 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 117
AzureIoTClient 12:658ca6865de2 118 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 119 {
AzureIoTClient 17:774695cb8554 120 IOTHUB_CLIENT_RETRY_POLICY retryPolicy; // Type of policy we're using
AzureIoTClient 17:774695cb8554 121 size_t retryTimeoutLimitInSeconds; // If we don't connect in this many seconds, give up even trying.
AzureIoTClient 17:774695cb8554 122 RETRY_POLICY fnRetryPolicy; // Pointer to the policy function
AzureIoTClient 17:774695cb8554 123 time_t start; // When did we start retrying?
AzureIoTClient 17:774695cb8554 124 time_t lastConnect; // When did we last try to connect?
AzureIoTClient 17:774695cb8554 125 bool retryStarted; // true if the retry timer is set and we're trying to retry
AzureIoTClient 17:774695cb8554 126 bool retryExpired; // true if we haven't connected in retryTimeoutLimitInSeconds seconds
AzureIoTClient 17:774695cb8554 127 bool firstAttempt; // true on init so we can connect the first time without waiting for any timeouts.
AzureIoTClient 17:774695cb8554 128 size_t retrycount; // How many times have we tried connecting?
AzureIoTClient 17:774695cb8554 129 size_t delayFromLastConnectToRetry; // last time delta betweewn retry attempts.
AzureIoTClient 12:658ca6865de2 130 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 131
AzureIoTClient 20:594780be216d 132 typedef enum MQTT_CLIENT_STATUS_TAG
AzureIoTClient 20:594780be216d 133 {
AzureIoTClient 21:167f8fcf6fb1 134 MQTT_CLIENT_STATUS_NOT_CONNECTED,
AzureIoTClient 21:167f8fcf6fb1 135 MQTT_CLIENT_STATUS_CONNECTING,
AzureIoTClient 21:167f8fcf6fb1 136 MQTT_CLIENT_STATUS_CONNECTED
AzureIoTClient 20:594780be216d 137 } MQTT_CLIENT_STATUS;
AzureIoTClient 20:594780be216d 138
AzureIoTClient 11:31ebaeb51e1e 139 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 140 {
AzureIoTClient 11:31ebaeb51e1e 141 // Topic control
AzureIoTClient 11:31ebaeb51e1e 142 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 143 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 144 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 145 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 146
AzureIoTClient 12:658ca6865de2 147 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 148
AzureIoTClient 11:31ebaeb51e1e 149 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 150
AzureIoTClient 11:31ebaeb51e1e 151 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 152 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 153 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 154 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 155 int portNum;
AzureIoTClient 11:31ebaeb51e1e 156
AzureIoTClient 11:31ebaeb51e1e 157 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 158
AzureIoTClient 11:31ebaeb51e1e 159 // The current mqtt iothub implementation requires that the hub name and the domain suffix be passed as the first of a series of segments
AzureIoTClient 11:31ebaeb51e1e 160 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 161 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 162 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 163 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 164 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 165 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 166
AzureIoTClient 11:31ebaeb51e1e 167 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 168 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 169
AzureIoTClient 11:31ebaeb51e1e 170 // Protocol
AzureIoTClient 11:31ebaeb51e1e 171 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 172 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 173
AzureIoTClient 11:31ebaeb51e1e 174 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 175 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 176
AzureIoTClient 11:31ebaeb51e1e 177 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 178 bool isRegistered;
AzureIoTClient 20:594780be216d 179 MQTT_CLIENT_STATUS mqttClientStatus;
AzureIoTClient 11:31ebaeb51e1e 180 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 181 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 182 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 183 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 184 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 185 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 186 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 187 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 188 bool raw_trace;
Azure.IoT.Build 13:606465879c57 189 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 190
AzureIoTClient 11:31ebaeb51e1e 191 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 192 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 193 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 194
AzureIoTClient 11:31ebaeb51e1e 195 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 196 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 197
AzureIoTClient 11:31ebaeb51e1e 198 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 199 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 200
AzureIoTClient 12:658ca6865de2 201 //Retry Logic
AzureIoTClient 12:658ca6865de2 202 RETRY_LOGIC* retryLogic;
AzureIoTClient 20:594780be216d 203
AzureIoTClient 21:167f8fcf6fb1 204 // Auth module used to generating handle authorization
AzureIoTClient 21:167f8fcf6fb1 205 // with either SAS Token, x509 Certs, and Device SAS Token
AzureIoTClient 21:167f8fcf6fb1 206 IOTHUB_AUTHORIZATION_HANDLE authorization_module;
AzureIoTClient 21:167f8fcf6fb1 207
AzureIoTClient 20:594780be216d 208 char* http_proxy_hostname;
AzureIoTClient 20:594780be216d 209 int http_proxy_port;
AzureIoTClient 20:594780be216d 210 char* http_proxy_username;
AzureIoTClient 20:594780be216d 211 char* http_proxy_password;
AzureIoTClient 11:31ebaeb51e1e 212 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
AzureIoTClient 11:31ebaeb51e1e 213
AzureIoTClient 12:658ca6865de2 214 typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
AzureIoTClient 12:658ca6865de2 215 {
Azure.IoT.Build 13:606465879c57 216 tickcounter_ms_t msgPublishTime;
AzureIoTClient 12:658ca6865de2 217 size_t retryCount;
AzureIoTClient 12:658ca6865de2 218 IOTHUB_IDENTITY_TYPE iothub_type;
AzureIoTClient 12:658ca6865de2 219 uint16_t packet_id;
AzureIoTClient 12:658ca6865de2 220 uint32_t iothub_msg_id;
AzureIoTClient 12:658ca6865de2 221 IOTHUB_DEVICE_TWIN* device_twin_data;
AzureIoTClient 12:658ca6865de2 222 DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
AzureIoTClient 12:658ca6865de2 223 DLIST_ENTRY entry;
AzureIoTClient 12:658ca6865de2 224 } MQTT_DEVICE_TWIN_ITEM;
AzureIoTClient 12:658ca6865de2 225
AzureIoTClient 11:31ebaeb51e1e 226 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
AzureIoTClient 11:31ebaeb51e1e 227 {
Azure.IoT.Build 13:606465879c57 228 tickcounter_ms_t msgPublishTime;
AzureIoTClient 11:31ebaeb51e1e 229 size_t retryCount;
AzureIoTClient 11:31ebaeb51e1e 230 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 11:31ebaeb51e1e 231 void* context;
AzureIoTClient 11:31ebaeb51e1e 232 uint16_t packet_id;
AzureIoTClient 11:31ebaeb51e1e 233 DLIST_ENTRY entry;
AzureIoTClient 11:31ebaeb51e1e 234 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
AzureIoTClient 11:31ebaeb51e1e 235
AzureIoTClient 14:4dc2b011be33 236 typedef struct DEVICE_METHOD_INFO_TAG
AzureIoTClient 14:4dc2b011be33 237 {
AzureIoTClient 14:4dc2b011be33 238 STRING_HANDLE request_id;
AzureIoTClient 14:4dc2b011be33 239 } DEVICE_METHOD_INFO;
AzureIoTClient 14:4dc2b011be33 240
AzureIoTClient 20:594780be216d 241 static void free_proxy_data(MQTTTRANSPORT_HANDLE_DATA* mqtt_transport_instance)
AzureIoTClient 20:594780be216d 242 {
AzureIoTClient 20:594780be216d 243 if (mqtt_transport_instance->http_proxy_hostname != NULL)
AzureIoTClient 20:594780be216d 244 {
AzureIoTClient 20:594780be216d 245 free(mqtt_transport_instance->http_proxy_hostname);
AzureIoTClient 20:594780be216d 246 mqtt_transport_instance->http_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 247 }
AzureIoTClient 20:594780be216d 248
AzureIoTClient 20:594780be216d 249 if (mqtt_transport_instance->http_proxy_username != NULL)
AzureIoTClient 20:594780be216d 250 {
AzureIoTClient 20:594780be216d 251 free(mqtt_transport_instance->http_proxy_username);
AzureIoTClient 20:594780be216d 252 mqtt_transport_instance->http_proxy_username = NULL;
AzureIoTClient 20:594780be216d 253 }
AzureIoTClient 20:594780be216d 254
AzureIoTClient 20:594780be216d 255 if (mqtt_transport_instance->http_proxy_password != NULL)
AzureIoTClient 20:594780be216d 256 {
AzureIoTClient 20:594780be216d 257 free(mqtt_transport_instance->http_proxy_password);
AzureIoTClient 20:594780be216d 258 mqtt_transport_instance->http_proxy_password = NULL;
AzureIoTClient 20:594780be216d 259 }
AzureIoTClient 20:594780be216d 260 }
AzureIoTClient 20:594780be216d 261
AzureIoTClient 12:658ca6865de2 262 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 263 {
AzureIoTClient 12:658ca6865de2 264 int result;
AzureIoTClient 12:658ca6865de2 265
AzureIoTClient 12:658ca6865de2 266 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 267 {
AzureIoTClient 12:658ca6865de2 268 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 269 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 270 *permit = true;
AzureIoTClient 12:658ca6865de2 271
AzureIoTClient 12:658ca6865de2 272 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 273
AzureIoTClient 12:658ca6865de2 274 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 275 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 276 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 277 */
AzureIoTClient 12:658ca6865de2 278
AzureIoTClient 12:658ca6865de2 279 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 280 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 281 {
AzureIoTClient 12:658ca6865de2 282 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 283 }
AzureIoTClient 12:658ca6865de2 284 else
AzureIoTClient 12:658ca6865de2 285 {
AzureIoTClient 12:658ca6865de2 286 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 287 }
AzureIoTClient 12:658ca6865de2 288
AzureIoTClient 12:658ca6865de2 289 result = 0;
AzureIoTClient 12:658ca6865de2 290 }
AzureIoTClient 12:658ca6865de2 291 else
AzureIoTClient 12:658ca6865de2 292 {
AzureIoTClient 18:ec8e5e97c6a4 293 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 294 }
AzureIoTClient 12:658ca6865de2 295 return result;
AzureIoTClient 12:658ca6865de2 296 }
AzureIoTClient 12:658ca6865de2 297
AzureIoTClient 12:658ca6865de2 298 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 299 {
AzureIoTClient 12:658ca6865de2 300 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 301 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 302 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 303 {
AzureIoTClient 12:658ca6865de2 304 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 305 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 306 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 307 {
AzureIoTClient 12:658ca6865de2 308 case IOTHUB_CLIENT_RETRY_NONE:
AzureIoTClient 12:658ca6865de2 309 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 310 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 311 break;
AzureIoTClient 12:658ca6865de2 312 case IOTHUB_CLIENT_RETRY_IMMEDIATE:
AzureIoTClient 12:658ca6865de2 313 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 314 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 315 break;
AzureIoTClient 12:658ca6865de2 316 case IOTHUB_CLIENT_RETRY_INTERVAL:
AzureIoTClient 12:658ca6865de2 317 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 318 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 319 break;
AzureIoTClient 12:658ca6865de2 320 case IOTHUB_CLIENT_RETRY_LINEAR_BACKOFF:
AzureIoTClient 12:658ca6865de2 321 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 322 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 323 break;
AzureIoTClient 12:658ca6865de2 324 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF:
AzureIoTClient 12:658ca6865de2 325 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 326 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 327 break;
AzureIoTClient 12:658ca6865de2 328 case IOTHUB_CLIENT_RETRY_RANDOM:
AzureIoTClient 12:658ca6865de2 329 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 330 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 331 break;
AzureIoTClient 12:658ca6865de2 332 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 333 default:
AzureIoTClient 12:658ca6865de2 334 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 335 break;
AzureIoTClient 12:658ca6865de2 336 }
AzureIoTClient 12:658ca6865de2 337 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 338 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 339 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 340 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 341 retryLogic->retryExpired = false;
AzureIoTClient 17:774695cb8554 342 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 343 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 344 }
AzureIoTClient 12:658ca6865de2 345 else
AzureIoTClient 12:658ca6865de2 346 {
AzureIoTClient 12:658ca6865de2 347 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 348 }
AzureIoTClient 12:658ca6865de2 349 return retryLogic;
AzureIoTClient 12:658ca6865de2 350 }
AzureIoTClient 12:658ca6865de2 351
AzureIoTClient 12:658ca6865de2 352 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 353 {
AzureIoTClient 12:658ca6865de2 354 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 355 {
AzureIoTClient 12:658ca6865de2 356 free(retryLogic);
AzureIoTClient 12:658ca6865de2 357 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 358 }
AzureIoTClient 12:658ca6865de2 359 }
AzureIoTClient 12:658ca6865de2 360
AzureIoTClient 12:658ca6865de2 361 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 362 static void StartRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 363 {
AzureIoTClient 12:658ca6865de2 364 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 365 {
AzureIoTClient 12:658ca6865de2 366 if (retryLogic->retryStarted == false)
AzureIoTClient 12:658ca6865de2 367 {
AzureIoTClient 12:658ca6865de2 368 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 369 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 370 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 371 }
AzureIoTClient 12:658ca6865de2 372
AzureIoTClient 21:167f8fcf6fb1 373 retryLogic->firstAttempt = false;
AzureIoTClient 12:658ca6865de2 374 }
AzureIoTClient 12:658ca6865de2 375 else
AzureIoTClient 12:658ca6865de2 376 {
AzureIoTClient 12:658ca6865de2 377 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 378 }
AzureIoTClient 12:658ca6865de2 379 }
AzureIoTClient 12:658ca6865de2 380
AzureIoTClient 12:658ca6865de2 381 // Called when connected
AzureIoTClient 12:658ca6865de2 382 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 383 {
AzureIoTClient 12:658ca6865de2 384 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 385 {
AzureIoTClient 12:658ca6865de2 386 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 387 {
AzureIoTClient 12:658ca6865de2 388 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 389 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 390 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 391 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 392 }
AzureIoTClient 12:658ca6865de2 393 else
AzureIoTClient 12:658ca6865de2 394 {
AzureIoTClient 12:658ca6865de2 395 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 396 }
AzureIoTClient 12:658ca6865de2 397 }
AzureIoTClient 12:658ca6865de2 398 else
AzureIoTClient 12:658ca6865de2 399 {
AzureIoTClient 12:658ca6865de2 400 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 401 }
AzureIoTClient 12:658ca6865de2 402 }
AzureIoTClient 12:658ca6865de2 403
AzureIoTClient 12:658ca6865de2 404 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 405 {
AzureIoTClient 12:658ca6865de2 406 int result;
AzureIoTClient 12:658ca6865de2 407 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 408 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 409 {
AzureIoTClient 12:658ca6865de2 410 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_041: [**If any handle is NULL then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return resultant line.] */
AzureIoTClient 12:658ca6865de2 411 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 412 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 413 }
AzureIoTClient 12:658ca6865de2 414 else
AzureIoTClient 12:658ca6865de2 415 {
AzureIoTClient 12:658ca6865de2 416 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 417 {
AzureIoTClient 12:658ca6865de2 418 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_042: [**If the retry logic is not already created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall create retry logic by calling CreateRetryLogic with retry policy and retryTimeout as parameters]*/
AzureIoTClient 12:658ca6865de2 419 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 420 }
AzureIoTClient 12:658ca6865de2 421 else
AzureIoTClient 12:658ca6865de2 422 {
AzureIoTClient 12:658ca6865de2 423 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_043: [**If the retry logic is already created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall destroy existing retry logic and create retry logic by calling CreateRetryLogic with retry policy and retryTimeout as parameters]*/
AzureIoTClient 12:658ca6865de2 424 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 425 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 426 }
AzureIoTClient 12:658ca6865de2 427
AzureIoTClient 12:658ca6865de2 428 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 429 {
AzureIoTClient 12:658ca6865de2 430 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_045: [**If retry logic for specified parameters of retry policy and retryTimeoutLimitInSeconds is created successfully then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return 0]*/
AzureIoTClient 12:658ca6865de2 431 result = 0;
AzureIoTClient 12:658ca6865de2 432 }
AzureIoTClient 12:658ca6865de2 433 else
AzureIoTClient 12:658ca6865de2 434 {
AzureIoTClient 12:658ca6865de2 435 /*Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_25_044: [**If retry logic for specified parameters of retry policy and retryTimeoutLimitInSeconds cannot be created then IoTHubTransport_MQTT_Common_SetRetryPolicy shall return resultant line]*/
AzureIoTClient 12:658ca6865de2 436 LogError("Retry Logic is not created");
AzureIoTClient 18:ec8e5e97c6a4 437 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 438 }
AzureIoTClient 12:658ca6865de2 439 }
AzureIoTClient 12:658ca6865de2 440 return result;
AzureIoTClient 12:658ca6865de2 441 }
AzureIoTClient 12:658ca6865de2 442
AzureIoTClient 12:658ca6865de2 443 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 444 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 445 {
AzureIoTClient 12:658ca6865de2 446 bool result;
AzureIoTClient 12:658ca6865de2 447 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 448
AzureIoTClient 12:658ca6865de2 449 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 450 {
AzureIoTClient 12:658ca6865de2 451 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 452 result = true;
AzureIoTClient 12:658ca6865de2 453 }
AzureIoTClient 17:774695cb8554 454 else if (now < 0 || retryLogic->start < 0)
AzureIoTClient 12:658ca6865de2 455 {
AzureIoTClient 12:658ca6865de2 456 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 457 result = true;
AzureIoTClient 12:658ca6865de2 458 }
AzureIoTClient 12:658ca6865de2 459 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 460 {
AzureIoTClient 17:774695cb8554 461 // We've given up trying to retry. Don't do anything.
AzureIoTClient 12:658ca6865de2 462 result = false;
AzureIoTClient 12:658ca6865de2 463 }
AzureIoTClient 17:774695cb8554 464 else if (retryLogic->firstAttempt)
AzureIoTClient 12:658ca6865de2 465 {
AzureIoTClient 17:774695cb8554 466 // This is the first time ever running through this code. We need to try connecting no matter what.
AzureIoTClient 12:658ca6865de2 467 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 468 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 469 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 470 result = true;
AzureIoTClient 12:658ca6865de2 471 }
AzureIoTClient 12:658ca6865de2 472 else
AzureIoTClient 12:658ca6865de2 473 {
AzureIoTClient 17:774695cb8554 474 // Are we trying to retry?
AzureIoTClient 12:658ca6865de2 475 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 476 {
AzureIoTClient 17:774695cb8554 477 // How long since we last tried to connect? Store this in difftime.
AzureIoTClient 12:658ca6865de2 478 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 17:774695cb8554 479
AzureIoTClient 17:774695cb8554 480 // Has it been less than 5 seconds since we tried last? If so, we have to
AzureIoTClient 17:774695cb8554 481 // be careful so we don't hit the server too quickly.
AzureIoTClient 12:658ca6865de2 482 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 483 {
AzureIoTClient 17:774695cb8554 484 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 17:774695cb8554 485 result = false;
AzureIoTClient 12:658ca6865de2 486 }
AzureIoTClient 12:658ca6865de2 487 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 488 {
AzureIoTClient 17:774695cb8554 489 // delayFromLastConnectionToRetry is either 0 (the first time around)
AzureIoTClient 17:774695cb8554 490 // or it's the backoff delta from the last time through the loop.
AzureIoTClient 17:774695cb8554 491 // If we're less than that, don't even bother trying. It's
AzureIoTClient 12:658ca6865de2 492 // Too early to retry
AzureIoTClient 12:658ca6865de2 493 result = false;
AzureIoTClient 12:658ca6865de2 494 }
AzureIoTClient 12:658ca6865de2 495 else
AzureIoTClient 12:658ca6865de2 496 {
AzureIoTClient 12:658ca6865de2 497 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 17:774695cb8554 498 // In other words, it migth be time to retry, so we should validate with the retry policy function.
AzureIoTClient 12:658ca6865de2 499 bool permit = false;
AzureIoTClient 12:658ca6865de2 500 size_t delay;
AzureIoTClient 12:658ca6865de2 501
AzureIoTClient 12:658ca6865de2 502 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 503 {
AzureIoTClient 17:774695cb8554 504 // Does the policy function want us to retry (permit == true), or are we still allowed to retry?
AzureIoTClient 17:774695cb8554 505 // (in other words, are we within retryTimeoutLimitInSeconds seconds since starting to retry?)
AzureIoTClient 21:167f8fcf6fb1 506 // If so, see if we _really_ want to retry.
AzureIoTClient 12:658ca6865de2 507 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 508 {
AzureIoTClient 12:658ca6865de2 509 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 510
AzureIoTClient 12:658ca6865de2 511 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 512
AzureIoTClient 17:774695cb8554 513 // If the retry policy is telling us to connect right away ( <= ERROR_TIME_FOR_RETRY_SECS),
AzureIoTClient 17:774695cb8554 514 // or if enough time has elapsed, then we retry.
AzureIoTClient 17:774695cb8554 515 if ((retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS) ||
AzureIoTClient 17:774695cb8554 516 (diffTime >= retryLogic->delayFromLastConnectToRetry))
AzureIoTClient 12:658ca6865de2 517 {
AzureIoTClient 12:658ca6865de2 518 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 519 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 520 result = true;
AzureIoTClient 12:658ca6865de2 521 }
AzureIoTClient 12:658ca6865de2 522 else
AzureIoTClient 12:658ca6865de2 523 {
AzureIoTClient 17:774695cb8554 524 // To soon to retry according to policy.
AzureIoTClient 12:658ca6865de2 525 result = false;
AzureIoTClient 12:658ca6865de2 526 }
AzureIoTClient 12:658ca6865de2 527 }
AzureIoTClient 12:658ca6865de2 528 else
AzureIoTClient 12:658ca6865de2 529 {
AzureIoTClient 17:774695cb8554 530 // Retry expired. Stop trying.
AzureIoTClient 12:658ca6865de2 531 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 532 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 533 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 534 result = false;
AzureIoTClient 12:658ca6865de2 535 }
AzureIoTClient 12:658ca6865de2 536 }
AzureIoTClient 12:658ca6865de2 537 else
AzureIoTClient 12:658ca6865de2 538 {
AzureIoTClient 17:774695cb8554 539 // We don't have a retry policy. Sorry, can't even guess. Don't bother even trying to retry.
AzureIoTClient 12:658ca6865de2 540 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 541 result = false;
AzureIoTClient 12:658ca6865de2 542 }
AzureIoTClient 12:658ca6865de2 543 }
AzureIoTClient 12:658ca6865de2 544 }
AzureIoTClient 12:658ca6865de2 545 else
AzureIoTClient 12:658ca6865de2 546 {
AzureIoTClient 17:774695cb8554 547 // Since this function is only called when the connection is
AzureIoTClient 17:774695cb8554 548 // already broken, we can start doing the rety logic. We'll do the
AzureIoTClient 17:774695cb8554 549 // actual interval checking next time around this loop.
AzureIoTClient 12:658ca6865de2 550 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 551 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 552 result = false;
AzureIoTClient 12:658ca6865de2 553 }
AzureIoTClient 12:658ca6865de2 554 }
AzureIoTClient 12:658ca6865de2 555 return result;
AzureIoTClient 12:658ca6865de2 556 }
AzureIoTClient 12:658ca6865de2 557
AzureIoTClient 12:658ca6865de2 558
AzureIoTClient 11:31ebaeb51e1e 559 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 560 {
AzureIoTClient 11:31ebaeb51e1e 561 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 562 {
AzureIoTClient 11:31ebaeb51e1e 563 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 564 }
AzureIoTClient 11:31ebaeb51e1e 565 else
AzureIoTClient 11:31ebaeb51e1e 566 {
AzureIoTClient 11:31ebaeb51e1e 567 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 568 }
AzureIoTClient 11:31ebaeb51e1e 569 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 570 }
AzureIoTClient 11:31ebaeb51e1e 571
AzureIoTClient 11:31ebaeb51e1e 572 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 573 {
AzureIoTClient 11:31ebaeb51e1e 574 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 575 {
AzureIoTClient 11:31ebaeb51e1e 576 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 577 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 578 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 579 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 580 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 581 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 582 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 583 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 584 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 585 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 586 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 587 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 588 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 589 default:
AzureIoTClient 11:31ebaeb51e1e 590 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 591 }
AzureIoTClient 11:31ebaeb51e1e 592 }
AzureIoTClient 11:31ebaeb51e1e 593
AzureIoTClient 14:4dc2b011be33 594 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
AzureIoTClient 12:658ca6865de2 595 {
AzureIoTClient 12:658ca6865de2 596 int result;
AzureIoTClient 12:658ca6865de2 597 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 598 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 599 {
AzureIoTClient 12:658ca6865de2 600 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 601 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 602 }
AzureIoTClient 12:658ca6865de2 603 else
AzureIoTClient 12:658ca6865de2 604 {
AzureIoTClient 12:658ca6865de2 605 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 606 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 607 {
AzureIoTClient 12:658ca6865de2 608 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 609 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 610 }
AzureIoTClient 12:658ca6865de2 611 else
AzureIoTClient 12:658ca6865de2 612 {
AzureIoTClient 12:658ca6865de2 613 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 614 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 18:ec8e5e97c6a4 615 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 616 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 617 {
AzureIoTClient 12:658ca6865de2 618 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 619 {
AzureIoTClient 12:658ca6865de2 620 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 621 {
AzureIoTClient 14:4dc2b011be33 622 LogError("Failed STRING_concat_with_STRING.");
AzureIoTClient 18:ec8e5e97c6a4 623 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 624 break;
AzureIoTClient 12:658ca6865de2 625 }
AzureIoTClient 12:658ca6865de2 626 }
AzureIoTClient 12:658ca6865de2 627 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 628 {
AzureIoTClient 12:658ca6865de2 629 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 630 {
AzureIoTClient 12:658ca6865de2 631 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 632 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 633 {
AzureIoTClient 14:4dc2b011be33 634 if (STRING_concat(request_id, request_id_value+request_id_length) != 0)
AzureIoTClient 14:4dc2b011be33 635 {
AzureIoTClient 14:4dc2b011be33 636 LogError("Failed STRING_concat failed.");
AzureIoTClient 18:ec8e5e97c6a4 637 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 638 }
AzureIoTClient 14:4dc2b011be33 639 else
AzureIoTClient 14:4dc2b011be33 640 {
AzureIoTClient 14:4dc2b011be33 641 result = 0;
AzureIoTClient 14:4dc2b011be33 642 }
AzureIoTClient 12:658ca6865de2 643 break;
AzureIoTClient 12:658ca6865de2 644 }
AzureIoTClient 12:658ca6865de2 645 }
AzureIoTClient 12:658ca6865de2 646 }
AzureIoTClient 12:658ca6865de2 647 token_index++;
AzureIoTClient 12:658ca6865de2 648 }
AzureIoTClient 12:658ca6865de2 649 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 650 }
AzureIoTClient 12:658ca6865de2 651 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 652 }
AzureIoTClient 12:658ca6865de2 653 return result;
AzureIoTClient 12:658ca6865de2 654 }
AzureIoTClient 12:658ca6865de2 655
AzureIoTClient 12:658ca6865de2 656 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 657 {
AzureIoTClient 12:658ca6865de2 658 int result;
AzureIoTClient 12:658ca6865de2 659 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 660 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 661 {
AzureIoTClient 12:658ca6865de2 662 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 663 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 664 *status_code = 0;
AzureIoTClient 12:658ca6865de2 665 *request_id = 0;
AzureIoTClient 12:658ca6865de2 666 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 667 }
AzureIoTClient 12:658ca6865de2 668 else
AzureIoTClient 12:658ca6865de2 669 {
AzureIoTClient 12:658ca6865de2 670 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 671 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 672 {
AzureIoTClient 12:658ca6865de2 673 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 674 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 675 *status_code = 0;
AzureIoTClient 12:658ca6865de2 676 *request_id = 0;
AzureIoTClient 12:658ca6865de2 677 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 678 }
AzureIoTClient 12:658ca6865de2 679 else
AzureIoTClient 12:658ca6865de2 680 {
AzureIoTClient 18:ec8e5e97c6a4 681 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 682 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 683 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 684 {
AzureIoTClient 12:658ca6865de2 685 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 686 {
AzureIoTClient 12:658ca6865de2 687 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 688 {
AzureIoTClient 12:658ca6865de2 689 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 690 *status_code = 0;
AzureIoTClient 12:658ca6865de2 691 *request_id = 0;
AzureIoTClient 12:658ca6865de2 692 result = 0;
AzureIoTClient 12:658ca6865de2 693 break;
AzureIoTClient 12:658ca6865de2 694 }
AzureIoTClient 12:658ca6865de2 695 else
AzureIoTClient 12:658ca6865de2 696 {
AzureIoTClient 12:658ca6865de2 697 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 698 }
AzureIoTClient 12:658ca6865de2 699 }
AzureIoTClient 12:658ca6865de2 700 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 701 {
AzureIoTClient 12:658ca6865de2 702 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 703 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 704 {
AzureIoTClient 12:658ca6865de2 705 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 706 }
AzureIoTClient 12:658ca6865de2 707 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 708 result = 0;
AzureIoTClient 12:658ca6865de2 709 break;
AzureIoTClient 12:658ca6865de2 710 }
AzureIoTClient 12:658ca6865de2 711 token_count++;
AzureIoTClient 12:658ca6865de2 712 }
AzureIoTClient 12:658ca6865de2 713 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 714 }
AzureIoTClient 12:658ca6865de2 715 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 716 }
AzureIoTClient 12:658ca6865de2 717 return result;
AzureIoTClient 12:658ca6865de2 718 }
AzureIoTClient 12:658ca6865de2 719
AzureIoTClient 12:658ca6865de2 720 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 721 {
AzureIoTClient 12:658ca6865de2 722 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 723 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 724 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 725 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 726 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 727
AzureIoTClient 12:658ca6865de2 728 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 729 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 730 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 731 {
AzureIoTClient 12:658ca6865de2 732 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 733 search_device_method = false;
AzureIoTClient 12:658ca6865de2 734 }
AzureIoTClient 12:658ca6865de2 735 else
AzureIoTClient 12:658ca6865de2 736 {
AzureIoTClient 16:14640ee83e99 737 size_t index = 0;
AzureIoTClient 16:14640ee83e99 738 for (index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 739 {
AzureIoTClient 12:658ca6865de2 740 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 741 {
AzureIoTClient 12:658ca6865de2 742 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 743 {
AzureIoTClient 12:658ca6865de2 744 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 745 }
AzureIoTClient 12:658ca6865de2 746 else
AzureIoTClient 12:658ca6865de2 747 {
AzureIoTClient 12:658ca6865de2 748 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 749 {
AzureIoTClient 12:658ca6865de2 750 break;
AzureIoTClient 12:658ca6865de2 751 }
AzureIoTClient 14:4dc2b011be33 752 else if (TOUPPER(TOPIC_DEVICE_TWIN_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 753 {
AzureIoTClient 12:658ca6865de2 754 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 755 }
AzureIoTClient 12:658ca6865de2 756 }
AzureIoTClient 12:658ca6865de2 757 }
AzureIoTClient 12:658ca6865de2 758 if (search_device_method)
AzureIoTClient 12:658ca6865de2 759 {
AzureIoTClient 12:658ca6865de2 760 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 761 {
AzureIoTClient 12:658ca6865de2 762 search_device_method = false;
AzureIoTClient 12:658ca6865de2 763 }
AzureIoTClient 12:658ca6865de2 764 else
AzureIoTClient 12:658ca6865de2 765 {
AzureIoTClient 12:658ca6865de2 766 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 767 {
AzureIoTClient 12:658ca6865de2 768 break;
AzureIoTClient 12:658ca6865de2 769 }
AzureIoTClient 14:4dc2b011be33 770 else if (TOUPPER(TOPIC_DEVICE_METHOD_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 771 {
AzureIoTClient 12:658ca6865de2 772 search_device_method = false;
AzureIoTClient 12:658ca6865de2 773 }
AzureIoTClient 12:658ca6865de2 774 }
AzureIoTClient 12:658ca6865de2 775 }
AzureIoTClient 12:658ca6865de2 776 }
AzureIoTClient 12:658ca6865de2 777 }
AzureIoTClient 12:658ca6865de2 778 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 779 {
AzureIoTClient 12:658ca6865de2 780 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 781 }
AzureIoTClient 12:658ca6865de2 782 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 783 {
AzureIoTClient 12:658ca6865de2 784 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 785 }
AzureIoTClient 12:658ca6865de2 786 else
AzureIoTClient 12:658ca6865de2 787 {
AzureIoTClient 12:658ca6865de2 788 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 789 }
AzureIoTClient 12:658ca6865de2 790 return type;
AzureIoTClient 12:658ca6865de2 791 }
AzureIoTClient 12:658ca6865de2 792
AzureIoTClient 11:31ebaeb51e1e 793 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 794 {
AzureIoTClient 11:31ebaeb51e1e 795 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 796 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 797 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 798 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 799 }
AzureIoTClient 11:31ebaeb51e1e 800
AzureIoTClient 11:31ebaeb51e1e 801 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 802 {
AzureIoTClient 11:31ebaeb51e1e 803 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 804 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 805 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 806 size_t propertyCount;
AzureIoTClient 23:84f4c36da8c1 807 size_t index = 0;
AzureIoTClient 11:31ebaeb51e1e 808
AzureIoTClient 11:31ebaeb51e1e 809 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 810 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 811 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 812 {
AzureIoTClient 11:31ebaeb51e1e 813 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 814 {
AzureIoTClient 11:31ebaeb51e1e 815 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 816 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 817 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 818 }
AzureIoTClient 11:31ebaeb51e1e 819 else
AzureIoTClient 11:31ebaeb51e1e 820 {
AzureIoTClient 11:31ebaeb51e1e 821 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 822 {
AzureIoTClient 16:14640ee83e99 823 for (index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 824 {
AzureIoTClient 11:31ebaeb51e1e 825 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 826 {
AzureIoTClient 23:84f4c36da8c1 827 LogError("Failed construting property string.");
AzureIoTClient 11:31ebaeb51e1e 828 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 829 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 830 }
AzureIoTClient 11:31ebaeb51e1e 831 }
AzureIoTClient 11:31ebaeb51e1e 832 }
AzureIoTClient 11:31ebaeb51e1e 833 }
AzureIoTClient 11:31ebaeb51e1e 834 }
AzureIoTClient 23:84f4c36da8c1 835
AzureIoTClient 23:84f4c36da8c1 836 /* 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> ] */
AzureIoTClient 23:84f4c36da8c1 837 if (result != NULL)
AzureIoTClient 23:84f4c36da8c1 838 {
AzureIoTClient 23:84f4c36da8c1 839 const char* correlation_id = IoTHubMessage_GetCorrelationId(iothub_message_handle);
AzureIoTClient 23:84f4c36da8c1 840 if (correlation_id != NULL)
AzureIoTClient 23:84f4c36da8c1 841 {
AzureIoTClient 23:84f4c36da8c1 842 if (STRING_sprintf(result, "%s%%24.cid=%s", index == 0 ? "" : PROPERTY_SEPARATOR, correlation_id) != 0)
AzureIoTClient 23:84f4c36da8c1 843 {
AzureIoTClient 23:84f4c36da8c1 844 LogError("Failed setting correlation_id.");
AzureIoTClient 23:84f4c36da8c1 845 STRING_delete(result);
AzureIoTClient 23:84f4c36da8c1 846 result = NULL;
AzureIoTClient 23:84f4c36da8c1 847 }
AzureIoTClient 23:84f4c36da8c1 848 index++;
AzureIoTClient 23:84f4c36da8c1 849 }
AzureIoTClient 23:84f4c36da8c1 850 }
AzureIoTClient 23:84f4c36da8c1 851
AzureIoTClient 23:84f4c36da8c1 852 /* 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> ] */
AzureIoTClient 23:84f4c36da8c1 853 if (result != NULL)
AzureIoTClient 23:84f4c36da8c1 854 {
AzureIoTClient 23:84f4c36da8c1 855 const char* msg_id = IoTHubMessage_GetMessageId(iothub_message_handle);
AzureIoTClient 23:84f4c36da8c1 856 if (msg_id != NULL)
AzureIoTClient 23:84f4c36da8c1 857 {
AzureIoTClient 23:84f4c36da8c1 858 if (STRING_sprintf(result, "%s%%24.mid=%s", index == 0 ? "" : PROPERTY_SEPARATOR, msg_id) != 0)
AzureIoTClient 23:84f4c36da8c1 859 {
AzureIoTClient 23:84f4c36da8c1 860 LogError("Failed setting correlation_id.");
AzureIoTClient 23:84f4c36da8c1 861 STRING_delete(result);
AzureIoTClient 23:84f4c36da8c1 862 result = NULL;
AzureIoTClient 23:84f4c36da8c1 863 }
AzureIoTClient 23:84f4c36da8c1 864 }
AzureIoTClient 23:84f4c36da8c1 865 }
AzureIoTClient 11:31ebaeb51e1e 866 return result;
AzureIoTClient 11:31ebaeb51e1e 867 }
AzureIoTClient 11:31ebaeb51e1e 868
AzureIoTClient 11:31ebaeb51e1e 869 static int publish_mqtt_telemetry_msg(PMQTTTRANSPORT_HANDLE_DATA transport_data, MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry, const unsigned char* payload, size_t len)
AzureIoTClient 11:31ebaeb51e1e 870 {
AzureIoTClient 11:31ebaeb51e1e 871 int result;
AzureIoTClient 11:31ebaeb51e1e 872 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 873 if (msgTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 874 {
AzureIoTClient 18:ec8e5e97c6a4 875 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 876 }
AzureIoTClient 11:31ebaeb51e1e 877 else
AzureIoTClient 11:31ebaeb51e1e 878 {
AzureIoTClient 11:31ebaeb51e1e 879 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 880 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 881 {
AzureIoTClient 18:ec8e5e97c6a4 882 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 883 }
AzureIoTClient 11:31ebaeb51e1e 884 else
AzureIoTClient 11:31ebaeb51e1e 885 {
Azure.IoT.Build 13:606465879c57 886 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 887 {
AzureIoTClient 11:31ebaeb51e1e 888 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 889 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 890 }
AzureIoTClient 11:31ebaeb51e1e 891 else
AzureIoTClient 11:31ebaeb51e1e 892 {
AzureIoTClient 11:31ebaeb51e1e 893 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 894 {
AzureIoTClient 18:ec8e5e97c6a4 895 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 896 }
AzureIoTClient 11:31ebaeb51e1e 897 else
AzureIoTClient 11:31ebaeb51e1e 898 {
AzureIoTClient 11:31ebaeb51e1e 899 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 900 result = 0;
AzureIoTClient 11:31ebaeb51e1e 901 }
AzureIoTClient 11:31ebaeb51e1e 902 }
AzureIoTClient 11:31ebaeb51e1e 903 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 904 }
AzureIoTClient 11:31ebaeb51e1e 905 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 906 }
AzureIoTClient 11:31ebaeb51e1e 907 return result;
AzureIoTClient 11:31ebaeb51e1e 908 }
AzureIoTClient 11:31ebaeb51e1e 909
AzureIoTClient 14:4dc2b011be33 910 static int publish_device_method_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, int status_code, STRING_HANDLE request_id, const unsigned char* response, size_t response_size)
AzureIoTClient 12:658ca6865de2 911 {
AzureIoTClient 12:658ca6865de2 912 int result;
AzureIoTClient 12:658ca6865de2 913 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 914
AzureIoTClient 14:4dc2b011be33 915 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id) );
AzureIoTClient 12:658ca6865de2 916 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 917 {
AzureIoTClient 12:658ca6865de2 918 LogError("Failed constructing message topic.");
AzureIoTClient 18:ec8e5e97c6a4 919 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 920 }
AzureIoTClient 12:658ca6865de2 921 else
AzureIoTClient 12:658ca6865de2 922 {
AzureIoTClient 14:4dc2b011be33 923 MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, response, response_size);
AzureIoTClient 12:658ca6865de2 924 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 925 {
AzureIoTClient 12:658ca6865de2 926 LogError("Failed constructing mqtt message.");
AzureIoTClient 18:ec8e5e97c6a4 927 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 928 }
AzureIoTClient 12:658ca6865de2 929 else
AzureIoTClient 12:658ca6865de2 930 {
AzureIoTClient 12:658ca6865de2 931 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 932 {
AzureIoTClient 12:658ca6865de2 933 LogError("Failed publishing to mqtt client.");
AzureIoTClient 18:ec8e5e97c6a4 934 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 935 }
AzureIoTClient 12:658ca6865de2 936 else
AzureIoTClient 12:658ca6865de2 937 {
AzureIoTClient 12:658ca6865de2 938 result = 0;
AzureIoTClient 12:658ca6865de2 939 }
AzureIoTClient 12:658ca6865de2 940 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 941 }
AzureIoTClient 12:658ca6865de2 942 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 943 }
AzureIoTClient 12:658ca6865de2 944 return result;
AzureIoTClient 12:658ca6865de2 945 }
AzureIoTClient 12:658ca6865de2 946
AzureIoTClient 12:658ca6865de2 947 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 948 {
AzureIoTClient 12:658ca6865de2 949 int result;
AzureIoTClient 12:658ca6865de2 950 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 951 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 952 {
AzureIoTClient 12:658ca6865de2 953 LogError("Failed allocating device twin data.");
AzureIoTClient 18:ec8e5e97c6a4 954 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 955 }
AzureIoTClient 12:658ca6865de2 956 else
AzureIoTClient 12:658ca6865de2 957 {
AzureIoTClient 12:658ca6865de2 958 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 959 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 960 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 961 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 962 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 963 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 964 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 965 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 966 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 967 {
AzureIoTClient 12:658ca6865de2 968 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 969 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 970 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 971 }
AzureIoTClient 12:658ca6865de2 972 else
AzureIoTClient 12:658ca6865de2 973 {
AzureIoTClient 12:658ca6865de2 974 MQTT_MESSAGE_HANDLE mqtt_get_msg = mqttmessage_create(mqtt_info->packet_id, STRING_c_str(msg_topic), DELIVER_AT_MOST_ONCE, NULL, 0);
AzureIoTClient 12:658ca6865de2 975 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 976 {
AzureIoTClient 12:658ca6865de2 977 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 978 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 979 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 980 }
AzureIoTClient 12:658ca6865de2 981 else
AzureIoTClient 12:658ca6865de2 982 {
AzureIoTClient 12:658ca6865de2 983 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 984 {
AzureIoTClient 12:658ca6865de2 985 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 986 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 987 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 988 }
AzureIoTClient 12:658ca6865de2 989 else
AzureIoTClient 12:658ca6865de2 990 {
AzureIoTClient 12:658ca6865de2 991 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 992 result = 0;
AzureIoTClient 12:658ca6865de2 993 }
AzureIoTClient 12:658ca6865de2 994 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 995 }
AzureIoTClient 12:658ca6865de2 996 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 997 }
AzureIoTClient 12:658ca6865de2 998 }
AzureIoTClient 12:658ca6865de2 999 return result;
AzureIoTClient 12:658ca6865de2 1000 }
AzureIoTClient 12:658ca6865de2 1001
AzureIoTClient 12:658ca6865de2 1002 static int publish_device_twin_message(MQTTTRANSPORT_HANDLE_DATA* transport_data, IOTHUB_DEVICE_TWIN* device_twin_info, MQTT_DEVICE_TWIN_ITEM* mqtt_info)
AzureIoTClient 12:658ca6865de2 1003 {
AzureIoTClient 12:658ca6865de2 1004 int result;
AzureIoTClient 12:658ca6865de2 1005 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 1006 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 1007 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 1008 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 1009 {
AzureIoTClient 12:658ca6865de2 1010 LogError("Failed constructing reported prop topic.");
AzureIoTClient 18:ec8e5e97c6a4 1011 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1012 }
AzureIoTClient 12:658ca6865de2 1013 else
AzureIoTClient 12:658ca6865de2 1014 {
AzureIoTClient 12:658ca6865de2 1015 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 1016 MQTT_MESSAGE_HANDLE mqtt_rpt_msg = mqttmessage_create(mqtt_info->packet_id, STRING_c_str(msgTopic), DELIVER_AT_MOST_ONCE, data_buff->buffer, data_buff->size);
AzureIoTClient 12:658ca6865de2 1017 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 1018 {
AzureIoTClient 12:658ca6865de2 1019 LogError("Failed creating mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 1020 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1021 }
AzureIoTClient 12:658ca6865de2 1022 else
AzureIoTClient 12:658ca6865de2 1023 {
Azure.IoT.Build 13:606465879c57 1024 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 1025 {
AzureIoTClient 12:658ca6865de2 1026 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 1027 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1028 }
AzureIoTClient 12:658ca6865de2 1029 else
AzureIoTClient 12:658ca6865de2 1030 {
AzureIoTClient 12:658ca6865de2 1031 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 1032 {
AzureIoTClient 12:658ca6865de2 1033 LogError("Failed publishing mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 1034 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1035 }
AzureIoTClient 12:658ca6865de2 1036 else
AzureIoTClient 12:658ca6865de2 1037 {
AzureIoTClient 12:658ca6865de2 1038 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 1039 result = 0;
AzureIoTClient 12:658ca6865de2 1040 }
AzureIoTClient 12:658ca6865de2 1041 }
AzureIoTClient 12:658ca6865de2 1042 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 1043 }
AzureIoTClient 12:658ca6865de2 1044 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 1045 }
AzureIoTClient 12:658ca6865de2 1046 return result;
AzureIoTClient 12:658ca6865de2 1047 }
AzureIoTClient 12:658ca6865de2 1048
AzureIoTClient 11:31ebaeb51e1e 1049 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 1050 {
AzureIoTClient 11:31ebaeb51e1e 1051 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 1052 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 16:14640ee83e99 1053 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1054 for (index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1055 {
AzureIoTClient 11:31ebaeb51e1e 1056 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 1057 {
AzureIoTClient 11:31ebaeb51e1e 1058 result = true;
AzureIoTClient 11:31ebaeb51e1e 1059 break;
AzureIoTClient 11:31ebaeb51e1e 1060 }
AzureIoTClient 11:31ebaeb51e1e 1061 }
AzureIoTClient 11:31ebaeb51e1e 1062 return result;
AzureIoTClient 11:31ebaeb51e1e 1063 }
AzureIoTClient 11:31ebaeb51e1e 1064
AzureIoTClient 11:31ebaeb51e1e 1065 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 1066 {
AzureIoTClient 11:31ebaeb51e1e 1067 int result;
AzureIoTClient 11:31ebaeb51e1e 1068 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 1069 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 1070 {
AzureIoTClient 11:31ebaeb51e1e 1071 LogError("Failure constructing string topic name.");
AzureIoTClient 18:ec8e5e97c6a4 1072 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1073 }
AzureIoTClient 11:31ebaeb51e1e 1074 else
AzureIoTClient 11:31ebaeb51e1e 1075 {
AzureIoTClient 11:31ebaeb51e1e 1076 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1077 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1078 {
AzureIoTClient 11:31ebaeb51e1e 1079 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1080 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1081 {
AzureIoTClient 11:31ebaeb51e1e 1082 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 18:ec8e5e97c6a4 1083 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1084 }
AzureIoTClient 11:31ebaeb51e1e 1085 else
AzureIoTClient 11:31ebaeb51e1e 1086 {
AzureIoTClient 11:31ebaeb51e1e 1087 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1088 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1089 {
AzureIoTClient 11:31ebaeb51e1e 1090 LogError("Failure to allocate STRING_new.");
AzureIoTClient 18:ec8e5e97c6a4 1091 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1092 }
AzureIoTClient 11:31ebaeb51e1e 1093 else
AzureIoTClient 11:31ebaeb51e1e 1094 {
AzureIoTClient 11:31ebaeb51e1e 1095 result = 0;
AzureIoTClient 18:ec8e5e97c6a4 1096
AzureIoTClient 11:31ebaeb51e1e 1097 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1098 {
AzureIoTClient 11:31ebaeb51e1e 1099 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1100 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1101 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1102 {
AzureIoTClient 11:31ebaeb51e1e 1103 break;
AzureIoTClient 11:31ebaeb51e1e 1104 }
AzureIoTClient 11:31ebaeb51e1e 1105 else
AzureIoTClient 11:31ebaeb51e1e 1106 {
AzureIoTClient 18:ec8e5e97c6a4 1107 if (isSystemProperty(tokenData))
AzureIoTClient 11:31ebaeb51e1e 1108 {
AzureIoTClient 11:31ebaeb51e1e 1109 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1110 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1111 {
AzureIoTClient 11:31ebaeb51e1e 1112 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1113 {
AzureIoTClient 11:31ebaeb51e1e 1114 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1115 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1116
AzureIoTClient 11:31ebaeb51e1e 1117 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1118 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1119
AzureIoTClient 11:31ebaeb51e1e 1120 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1121 {
AzureIoTClient 18:ec8e5e97c6a4 1122 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1123 }
AzureIoTClient 18:ec8e5e97c6a4 1124 else
AzureIoTClient 18:ec8e5e97c6a4 1125 {
AzureIoTClient 18:ec8e5e97c6a4 1126 strncpy(propName, tokenData, nameLen);
AzureIoTClient 18:ec8e5e97c6a4 1127 propName[nameLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1128
AzureIoTClient 18:ec8e5e97c6a4 1129 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 18:ec8e5e97c6a4 1130 propValue[valLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1131
AzureIoTClient 18:ec8e5e97c6a4 1132 if (nameLen > 3)
AzureIoTClient 18:ec8e5e97c6a4 1133 {
AzureIoTClient 18:ec8e5e97c6a4 1134 if (strcmp((const char*)&propName[nameLen - 3], MESSAGE_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1135 {
AzureIoTClient 18:ec8e5e97c6a4 1136 if (IoTHubMessage_SetMessageId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1137 {
AzureIoTClient 18:ec8e5e97c6a4 1138 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'messageId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1139 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1140 }
AzureIoTClient 18:ec8e5e97c6a4 1141 }
AzureIoTClient 18:ec8e5e97c6a4 1142
AzureIoTClient 18:ec8e5e97c6a4 1143 if (strcmp((const char*)&propName[nameLen - 3], CORRELATION_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1144 {
AzureIoTClient 18:ec8e5e97c6a4 1145 if (IoTHubMessage_SetCorrelationId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1146 {
AzureIoTClient 18:ec8e5e97c6a4 1147 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'correlationId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1148 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1149 }
AzureIoTClient 18:ec8e5e97c6a4 1150 }
AzureIoTClient 18:ec8e5e97c6a4 1151 }
AzureIoTClient 18:ec8e5e97c6a4 1152 }
AzureIoTClient 18:ec8e5e97c6a4 1153 free(propName);
AzureIoTClient 18:ec8e5e97c6a4 1154 free(propValue);
AzureIoTClient 18:ec8e5e97c6a4 1155
AzureIoTClient 18:ec8e5e97c6a4 1156 break;
AzureIoTClient 18:ec8e5e97c6a4 1157 }
AzureIoTClient 18:ec8e5e97c6a4 1158 iterator++;
AzureIoTClient 18:ec8e5e97c6a4 1159 }
AzureIoTClient 18:ec8e5e97c6a4 1160 }
AzureIoTClient 18:ec8e5e97c6a4 1161 else
AzureIoTClient 18:ec8e5e97c6a4 1162 {
AzureIoTClient 18:ec8e5e97c6a4 1163 const char* iterator = tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1164 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 18:ec8e5e97c6a4 1165 {
AzureIoTClient 18:ec8e5e97c6a4 1166 if (*iterator == '=')
AzureIoTClient 18:ec8e5e97c6a4 1167 {
AzureIoTClient 18:ec8e5e97c6a4 1168 size_t nameLen = iterator - tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1169 char* propName = malloc(nameLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1170
AzureIoTClient 18:ec8e5e97c6a4 1171 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 18:ec8e5e97c6a4 1172 char* propValue = malloc(valLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1173
AzureIoTClient 18:ec8e5e97c6a4 1174 if (propName == NULL || propValue == NULL)
AzureIoTClient 18:ec8e5e97c6a4 1175 {
AzureIoTClient 18:ec8e5e97c6a4 1176 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1177 }
AzureIoTClient 11:31ebaeb51e1e 1178 else
AzureIoTClient 11:31ebaeb51e1e 1179 {
AzureIoTClient 11:31ebaeb51e1e 1180 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1181 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1182
AzureIoTClient 11:31ebaeb51e1e 1183 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1184 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1185
AzureIoTClient 11:31ebaeb51e1e 1186 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1187 {
AzureIoTClient 11:31ebaeb51e1e 1188 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 18:ec8e5e97c6a4 1189 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1190 }
AzureIoTClient 11:31ebaeb51e1e 1191 }
AzureIoTClient 11:31ebaeb51e1e 1192 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1193 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1194
AzureIoTClient 11:31ebaeb51e1e 1195 break;
AzureIoTClient 11:31ebaeb51e1e 1196 }
AzureIoTClient 11:31ebaeb51e1e 1197 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1198 }
AzureIoTClient 11:31ebaeb51e1e 1199 }
AzureIoTClient 11:31ebaeb51e1e 1200 }
AzureIoTClient 11:31ebaeb51e1e 1201 }
AzureIoTClient 11:31ebaeb51e1e 1202 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1203 }
AzureIoTClient 11:31ebaeb51e1e 1204 }
AzureIoTClient 11:31ebaeb51e1e 1205 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1206 }
AzureIoTClient 11:31ebaeb51e1e 1207 else
AzureIoTClient 11:31ebaeb51e1e 1208 {
AzureIoTClient 11:31ebaeb51e1e 1209 LogError("Unable to create Tokenizer object.");
AzureIoTClient 18:ec8e5e97c6a4 1210 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1211 }
AzureIoTClient 11:31ebaeb51e1e 1212 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1213 }
AzureIoTClient 11:31ebaeb51e1e 1214 return result;
AzureIoTClient 11:31ebaeb51e1e 1215 }
AzureIoTClient 11:31ebaeb51e1e 1216
AzureIoTClient 11:31ebaeb51e1e 1217 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1218 {
AzureIoTClient 14:4dc2b011be33 1219 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
AzureIoTClient 11:31ebaeb51e1e 1220 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1221 {
AzureIoTClient 14:4dc2b011be33 1222 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
AzureIoTClient 11:31ebaeb51e1e 1223 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1224 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1225 {
AzureIoTClient 11:31ebaeb51e1e 1226 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1227 }
AzureIoTClient 11:31ebaeb51e1e 1228 else
AzureIoTClient 11:31ebaeb51e1e 1229 {
AzureIoTClient 11:31ebaeb51e1e 1230 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1231
AzureIoTClient 12:658ca6865de2 1232 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1233 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1234 {
AzureIoTClient 12:658ca6865de2 1235 size_t request_id;
AzureIoTClient 12:658ca6865de2 1236 int status_code;
AzureIoTClient 12:658ca6865de2 1237 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1238 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1239 {
AzureIoTClient 12:658ca6865de2 1240 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1241 }
AzureIoTClient 12:658ca6865de2 1242 else
AzureIoTClient 12:658ca6865de2 1243 {
AzureIoTClient 12:658ca6865de2 1244 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1245 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1246 {
AzureIoTClient 12:658ca6865de2 1247 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1248 }
AzureIoTClient 12:658ca6865de2 1249 else
AzureIoTClient 12:658ca6865de2 1250 {
AzureIoTClient 12:658ca6865de2 1251 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1252 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1253 {
AzureIoTClient 12:658ca6865de2 1254 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1255 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1256 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1257 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1258 {
AzureIoTClient 12:658ca6865de2 1259 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1260 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1261 {
AzureIoTClient 14:4dc2b011be33 1262 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_054: [ If type is IOTHUB_TYPE_DEVICE_TWIN, then on success if msg_type is RETRIEVE_PROPERTIES then mqtt_notification_callback shall call IoTHubClient_LL_RetrievePropertyComplete... ] */
AzureIoTClient 12:658ca6865de2 1263 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1264 }
AzureIoTClient 12:658ca6865de2 1265 else
AzureIoTClient 12:658ca6865de2 1266 {
AzureIoTClient 14:4dc2b011be33 1267 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_055: [ if device_twin_msg_type is not RETRIEVE_PROPERTIES then mqtt_notification_callback shall call IoTHubClient_LL_ReportedStateComplete ] */
AzureIoTClient 12:658ca6865de2 1268 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1269 }
AzureIoTClient 12:658ca6865de2 1270 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1271 break;
AzureIoTClient 12:658ca6865de2 1272 }
AzureIoTClient 12:658ca6865de2 1273 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1274 }
AzureIoTClient 12:658ca6865de2 1275 }
AzureIoTClient 12:658ca6865de2 1276 }
AzureIoTClient 12:658ca6865de2 1277 }
AzureIoTClient 12:658ca6865de2 1278 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1279 {
AzureIoTClient 12:658ca6865de2 1280 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1281 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1282 {
AzureIoTClient 12:658ca6865de2 1283 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1284 }
AzureIoTClient 12:658ca6865de2 1285 else
AzureIoTClient 12:658ca6865de2 1286 {
AzureIoTClient 14:4dc2b011be33 1287 DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO) );
AzureIoTClient 14:4dc2b011be33 1288 if (dev_method_info == NULL)
AzureIoTClient 12:658ca6865de2 1289 {
AzureIoTClient 14:4dc2b011be33 1290 LogError("Failure: allocating DEVICE_METHOD_INFO object");
AzureIoTClient 12:658ca6865de2 1291 }
AzureIoTClient 12:658ca6865de2 1292 else
AzureIoTClient 12:658ca6865de2 1293 {
AzureIoTClient 14:4dc2b011be33 1294 dev_method_info->request_id = STRING_new();
AzureIoTClient 14:4dc2b011be33 1295 if (dev_method_info->request_id == NULL)
AzureIoTClient 14:4dc2b011be33 1296 {
AzureIoTClient 14:4dc2b011be33 1297 LogError("Failure constructing request_id string");
AzureIoTClient 14:4dc2b011be33 1298 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1299 }
AzureIoTClient 14:4dc2b011be33 1300 else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
AzureIoTClient 12:658ca6865de2 1301 {
AzureIoTClient 14:4dc2b011be33 1302 LogError("Failure: retrieve device topic info");
AzureIoTClient 14:4dc2b011be33 1303 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1304 free(dev_method_info);
AzureIoTClient 12:658ca6865de2 1305 }
AzureIoTClient 14:4dc2b011be33 1306 else
AzureIoTClient 14:4dc2b011be33 1307 {
AzureIoTClient 14:4dc2b011be33 1308 /* CodesSRS_IOTHUB_MQTT_TRANSPORT_07_053: [ If type is IOTHUB_TYPE_DEVICE_METHODS, then on success mqtt_notification_callback shall call IoTHubClient_LL_DeviceMethodComplete. ] */
AzureIoTClient 14:4dc2b011be33 1309 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 14:4dc2b011be33 1310 if (IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info) != 0)
AzureIoTClient 14:4dc2b011be33 1311 {
AzureIoTClient 14:4dc2b011be33 1312 LogError("Failure: IoTHubClient_LL_DeviceMethodComplete");
AzureIoTClient 14:4dc2b011be33 1313 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1314 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1315 }
AzureIoTClient 14:4dc2b011be33 1316 }
AzureIoTClient 12:658ca6865de2 1317 }
AzureIoTClient 12:658ca6865de2 1318 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1319 }
AzureIoTClient 11:31ebaeb51e1e 1320 }
AzureIoTClient 11:31ebaeb51e1e 1321 else
AzureIoTClient 11:31ebaeb51e1e 1322 {
AzureIoTClient 12:658ca6865de2 1323 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1324 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1325 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1326 {
AzureIoTClient 12:658ca6865de2 1327 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1328 }
AzureIoTClient 11:31ebaeb51e1e 1329 else
AzureIoTClient 11:31ebaeb51e1e 1330 {
AzureIoTClient 12:658ca6865de2 1331 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1332 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1333 {
AzureIoTClient 12:658ca6865de2 1334 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1335 }
AzureIoTClient 12:658ca6865de2 1336 else
AzureIoTClient 11:31ebaeb51e1e 1337 {
AzureIoTClient 19:f87dfe76bc70 1338 MESSAGE_CALLBACK_INFO* messageData = (MESSAGE_CALLBACK_INFO*)malloc(sizeof(MESSAGE_CALLBACK_INFO));
AzureIoTClient 19:f87dfe76bc70 1339 if (messageData == NULL)
AzureIoTClient 19:f87dfe76bc70 1340 {
AzureIoTClient 19:f87dfe76bc70 1341 LogError("malloc failed");
AzureIoTClient 19:f87dfe76bc70 1342 }
AzureIoTClient 19:f87dfe76bc70 1343 else
AzureIoTClient 12:658ca6865de2 1344 {
AzureIoTClient 19:f87dfe76bc70 1345 messageData->messageHandle = IoTHubMessage;
AzureIoTClient 19:f87dfe76bc70 1346 messageData->transportContext = NULL;
AzureIoTClient 19:f87dfe76bc70 1347
AzureIoTClient 19:f87dfe76bc70 1348 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_056: [ If type is IOTHUB_TYPE_TELEMETRY, then on success mqtt_notification_callback shall call IoTHubClient_LL_MessageCallback. ] */
AzureIoTClient 19:f87dfe76bc70 1349 if (!IoTHubClient_LL_MessageCallback(transportData->llClientHandle, messageData))
AzureIoTClient 19:f87dfe76bc70 1350 {
AzureIoTClient 21:167f8fcf6fb1 1351 LogError("IoTHubClient_LL_MessageCallback returned false");
AzureIoTClient 19:f87dfe76bc70 1352
AzureIoTClient 19:f87dfe76bc70 1353 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 19:f87dfe76bc70 1354 free(messageData);
AzureIoTClient 19:f87dfe76bc70 1355 }
AzureIoTClient 12:658ca6865de2 1356 }
AzureIoTClient 11:31ebaeb51e1e 1357 }
AzureIoTClient 11:31ebaeb51e1e 1358 }
AzureIoTClient 11:31ebaeb51e1e 1359 }
AzureIoTClient 11:31ebaeb51e1e 1360 }
AzureIoTClient 11:31ebaeb51e1e 1361 }
AzureIoTClient 11:31ebaeb51e1e 1362 }
AzureIoTClient 11:31ebaeb51e1e 1363
AzureIoTClient 11:31ebaeb51e1e 1364 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1365 {
AzureIoTClient 11:31ebaeb51e1e 1366 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1367 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1368 {
AzureIoTClient 11:31ebaeb51e1e 1369 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1370
AzureIoTClient 11:31ebaeb51e1e 1371 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1372 {
AzureIoTClient 11:31ebaeb51e1e 1373 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1374 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1375 {
AzureIoTClient 11:31ebaeb51e1e 1376 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1377 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1378 {
AzureIoTClient 11:31ebaeb51e1e 1379 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1380 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1381 {
AzureIoTClient 11:31ebaeb51e1e 1382 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1383 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1384 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1385
AzureIoTClient 11:31ebaeb51e1e 1386 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1387 {
AzureIoTClient 11:31ebaeb51e1e 1388 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1389 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1390 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1391 }
AzureIoTClient 11:31ebaeb51e1e 1392 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1393 }
AzureIoTClient 11:31ebaeb51e1e 1394 }
AzureIoTClient 11:31ebaeb51e1e 1395 else
AzureIoTClient 11:31ebaeb51e1e 1396 {
AzureIoTClient 11:31ebaeb51e1e 1397 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1398 }
AzureIoTClient 11:31ebaeb51e1e 1399 break;
AzureIoTClient 11:31ebaeb51e1e 1400 }
AzureIoTClient 11:31ebaeb51e1e 1401 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1402 {
AzureIoTClient 11:31ebaeb51e1e 1403 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1404 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1405 {
AzureIoTClient 11:31ebaeb51e1e 1406 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1407 {
AzureIoTClient 11:31ebaeb51e1e 1408 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1409 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1410 transport_data->isRecoverableError = true;
AzureIoTClient 20:594780be216d 1411 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTED;
AzureIoTClient 12:658ca6865de2 1412 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 19:f87dfe76bc70 1413 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1414 }
AzureIoTClient 11:31ebaeb51e1e 1415 else
AzureIoTClient 11:31ebaeb51e1e 1416 {
AzureIoTClient 12:658ca6865de2 1417 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1418 {
AzureIoTClient 12:658ca6865de2 1419 transport_data->isRecoverableError = false;
AzureIoTClient 19:f87dfe76bc70 1420 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1421 }
AzureIoTClient 12:658ca6865de2 1422 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1423 {
AzureIoTClient 19:f87dfe76bc70 1424 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1425 }
AzureIoTClient 12:658ca6865de2 1426 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1427 {
AzureIoTClient 12:658ca6865de2 1428 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1429 }
AzureIoTClient 11:31ebaeb51e1e 1430 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1431 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 20:594780be216d 1432 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1433 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1434 }
AzureIoTClient 11:31ebaeb51e1e 1435 }
AzureIoTClient 11:31ebaeb51e1e 1436 else
AzureIoTClient 11:31ebaeb51e1e 1437 {
AzureIoTClient 11:31ebaeb51e1e 1438 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1439 }
AzureIoTClient 11:31ebaeb51e1e 1440 break;
AzureIoTClient 11:31ebaeb51e1e 1441 }
AzureIoTClient 11:31ebaeb51e1e 1442 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1443 {
AzureIoTClient 11:31ebaeb51e1e 1444 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1445 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1446 {
AzureIoTClient 16:14640ee83e99 1447 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1448 for (index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1449 {
AzureIoTClient 11:31ebaeb51e1e 1450 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1451 {
AzureIoTClient 11:31ebaeb51e1e 1452 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1453 }
AzureIoTClient 11:31ebaeb51e1e 1454 }
AzureIoTClient 11:31ebaeb51e1e 1455 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1456 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1457 }
AzureIoTClient 11:31ebaeb51e1e 1458 else
AzureIoTClient 11:31ebaeb51e1e 1459 {
AzureIoTClient 11:31ebaeb51e1e 1460 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1461 }
AzureIoTClient 11:31ebaeb51e1e 1462 break;
AzureIoTClient 11:31ebaeb51e1e 1463 }
AzureIoTClient 11:31ebaeb51e1e 1464 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1465 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1466 {
AzureIoTClient 11:31ebaeb51e1e 1467 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1468 break;
AzureIoTClient 11:31ebaeb51e1e 1469 }
AzureIoTClient 11:31ebaeb51e1e 1470 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1471 {
AzureIoTClient 11:31ebaeb51e1e 1472 // Close the client so we can reconnect again
AzureIoTClient 20:594780be216d 1473 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1474 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1475 break;
AzureIoTClient 11:31ebaeb51e1e 1476 }
AzureIoTClient 17:774695cb8554 1477 case MQTT_CLIENT_ON_UNSUBSCRIBE_ACK:
AzureIoTClient 17:774695cb8554 1478 {
AzureIoTClient 17:774695cb8554 1479 break;
AzureIoTClient 17:774695cb8554 1480 }
AzureIoTClient 12:658ca6865de2 1481 }
AzureIoTClient 12:658ca6865de2 1482 }
AzureIoTClient 12:658ca6865de2 1483 }
AzureIoTClient 12:658ca6865de2 1484
AzureIoTClient 12:658ca6865de2 1485 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1486 {
AzureIoTClient 12:658ca6865de2 1487 (void)handle;
AzureIoTClient 12:658ca6865de2 1488 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1489 {
AzureIoTClient 12:658ca6865de2 1490 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1491 switch (error)
AzureIoTClient 12:658ca6865de2 1492 {
AzureIoTClient 12:658ca6865de2 1493 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1494 {
AzureIoTClient 19:f87dfe76bc70 1495 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1496 break;
AzureIoTClient 12:658ca6865de2 1497 }
AzureIoTClient 20:594780be216d 1498 case MQTT_CLIENT_COMMUNICATION_ERROR:
AzureIoTClient 20:594780be216d 1499 {
AzureIoTClient 20:594780be216d 1500 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_COMMUNICATION_ERROR);
AzureIoTClient 20:594780be216d 1501 break;
AzureIoTClient 20:594780be216d 1502 }
AzureIoTClient 12:658ca6865de2 1503 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1504 {
AzureIoTClient 12:658ca6865de2 1505 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1506 break;
AzureIoTClient 11:31ebaeb51e1e 1507 }
AzureIoTClient 17:774695cb8554 1508 case MQTT_CLIENT_PARSE_ERROR:
AzureIoTClient 17:774695cb8554 1509 case MQTT_CLIENT_MEMORY_ERROR:
AzureIoTClient 17:774695cb8554 1510 case MQTT_CLIENT_UNKNOWN_ERROR:
AzureIoTClient 17:774695cb8554 1511 {
AzureIoTClient 17:774695cb8554 1512 LogError("INTERNAL ERROR: unexpected error value received %s", ENUM_TO_STRING(MQTT_CLIENT_EVENT_ERROR, error));
AzureIoTClient 20:594780be216d 1513 break;
AzureIoTClient 17:774695cb8554 1514 }
AzureIoTClient 11:31ebaeb51e1e 1515 }
AzureIoTClient 20:594780be216d 1516 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 1517 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1518 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1519 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1520 {
Azure.IoT.Build 13:606465879c57 1521 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1522 }
Azure.IoT.Build 13:606465879c57 1523 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1524 {
Azure.IoT.Build 13:606465879c57 1525 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1526 }
Azure.IoT.Build 13:606465879c57 1527 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1528 {
Azure.IoT.Build 13:606465879c57 1529 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1530 }
Azure.IoT.Build 13:606465879c57 1531 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1532 {
Azure.IoT.Build 13:606465879c57 1533 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1534 }
Azure.IoT.Build 13:606465879c57 1535 }
AzureIoTClient 12:658ca6865de2 1536 else
AzureIoTClient 12:658ca6865de2 1537 {
AzureIoTClient 12:658ca6865de2 1538 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1539 }
AzureIoTClient 11:31ebaeb51e1e 1540 }
AzureIoTClient 11:31ebaeb51e1e 1541
AzureIoTClient 11:31ebaeb51e1e 1542 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1543 {
AzureIoTClient 11:31ebaeb51e1e 1544 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1545 {
AzureIoTClient 11:31ebaeb51e1e 1546 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1547 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1548 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1549 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1550 {
AzureIoTClient 11:31ebaeb51e1e 1551 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1552 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1553 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1554 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1555 }
AzureIoTClient 12:658ca6865de2 1556 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1557 {
AzureIoTClient 12:658ca6865de2 1558 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1559 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1560 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1561 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1562 }
AzureIoTClient 12:658ca6865de2 1563 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1564 {
AzureIoTClient 12:658ca6865de2 1565 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1566 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1567 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1568 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1569 }
AzureIoTClient 12:658ca6865de2 1570 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1571 {
AzureIoTClient 12:658ca6865de2 1572 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1573 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1574 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1575 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1576 }
AzureIoTClient 11:31ebaeb51e1e 1577
AzureIoTClient 11:31ebaeb51e1e 1578 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1579 {
AzureIoTClient 12:658ca6865de2 1580 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransport_MQTT_Common_Subscribe shall call mqtt_client_subscribe to subscribe to the Message Topic.] */
AzureIoTClient 11:31ebaeb51e1e 1581 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1582 {
AzureIoTClient 12:658ca6865de2 1583 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1584 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1585 }
AzureIoTClient 11:31ebaeb51e1e 1586 else
AzureIoTClient 11:31ebaeb51e1e 1587 {
AzureIoTClient 12:658ca6865de2 1588 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1589 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1590 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1591 }
AzureIoTClient 11:31ebaeb51e1e 1592 }
AzureIoTClient 11:31ebaeb51e1e 1593 else
AzureIoTClient 11:31ebaeb51e1e 1594 {
AzureIoTClient 12:658ca6865de2 1595 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1596 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1597 }
AzureIoTClient 11:31ebaeb51e1e 1598 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1599 }
AzureIoTClient 11:31ebaeb51e1e 1600 else
AzureIoTClient 11:31ebaeb51e1e 1601 {
AzureIoTClient 11:31ebaeb51e1e 1602 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1603 }
AzureIoTClient 11:31ebaeb51e1e 1604 }
AzureIoTClient 11:31ebaeb51e1e 1605
AzureIoTClient 11:31ebaeb51e1e 1606 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1607 {
AzureIoTClient 11:31ebaeb51e1e 1608 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1609
AzureIoTClient 11:31ebaeb51e1e 1610 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1611 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1612 {
AzureIoTClient 11:31ebaeb51e1e 1613 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1614 {
AzureIoTClient 11:31ebaeb51e1e 1615 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1616 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1617 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1618 }
AzureIoTClient 11:31ebaeb51e1e 1619 }
AzureIoTClient 11:31ebaeb51e1e 1620 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1621 {
AzureIoTClient 11:31ebaeb51e1e 1622 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1623 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1624 {
AzureIoTClient 11:31ebaeb51e1e 1625 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1626 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1627 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1628 }
AzureIoTClient 11:31ebaeb51e1e 1629 else
AzureIoTClient 11:31ebaeb51e1e 1630 {
AzureIoTClient 11:31ebaeb51e1e 1631 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1632 }
AzureIoTClient 11:31ebaeb51e1e 1633 }
AzureIoTClient 11:31ebaeb51e1e 1634 else
AzureIoTClient 11:31ebaeb51e1e 1635 {
AzureIoTClient 11:31ebaeb51e1e 1636 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1637 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1638 }
AzureIoTClient 11:31ebaeb51e1e 1639 return result;
AzureIoTClient 11:31ebaeb51e1e 1640 }
AzureIoTClient 11:31ebaeb51e1e 1641
AzureIoTClient 11:31ebaeb51e1e 1642 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1643 {
AzureIoTClient 11:31ebaeb51e1e 1644 int result;
AzureIoTClient 11:31ebaeb51e1e 1645
AzureIoTClient 11:31ebaeb51e1e 1646 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1647 {
AzureIoTClient 11:31ebaeb51e1e 1648 // construct address
AzureIoTClient 11:31ebaeb51e1e 1649 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 20:594780be216d 1650 MQTT_TRANSPORT_PROXY_OPTIONS mqtt_proxy_options;
AzureIoTClient 20:594780be216d 1651
AzureIoTClient 20:594780be216d 1652 /* 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`. ]*/
AzureIoTClient 20:594780be216d 1653 mqtt_proxy_options.host_address = transport_data->http_proxy_hostname;
AzureIoTClient 20:594780be216d 1654 mqtt_proxy_options.port = transport_data->http_proxy_port;
AzureIoTClient 20:594780be216d 1655 mqtt_proxy_options.username = transport_data->http_proxy_username;
AzureIoTClient 20:594780be216d 1656 mqtt_proxy_options.password = transport_data->http_proxy_password;
AzureIoTClient 20:594780be216d 1657
AzureIoTClient 20:594780be216d 1658 /* 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. ]*/
AzureIoTClient 20:594780be216d 1659 transport_data->xioTransport = transport_data->get_io_transport(hostAddress, (transport_data->http_proxy_hostname == NULL) ? NULL : &mqtt_proxy_options);
AzureIoTClient 11:31ebaeb51e1e 1660 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1661 {
AzureIoTClient 11:31ebaeb51e1e 1662 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 18:ec8e5e97c6a4 1663 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1664 }
AzureIoTClient 11:31ebaeb51e1e 1665 else
AzureIoTClient 11:31ebaeb51e1e 1666 {
AzureIoTClient 11:31ebaeb51e1e 1667 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1668 }
AzureIoTClient 11:31ebaeb51e1e 1669 }
AzureIoTClient 11:31ebaeb51e1e 1670 else
AzureIoTClient 11:31ebaeb51e1e 1671 {
AzureIoTClient 11:31ebaeb51e1e 1672 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1673 }
AzureIoTClient 11:31ebaeb51e1e 1674 return result;
AzureIoTClient 11:31ebaeb51e1e 1675 }
AzureIoTClient 11:31ebaeb51e1e 1676
AzureIoTClient 11:31ebaeb51e1e 1677 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1678 {
AzureIoTClient 11:31ebaeb51e1e 1679 int result;
AzureIoTClient 11:31ebaeb51e1e 1680
AzureIoTClient 21:167f8fcf6fb1 1681 char* sasToken = NULL;
AzureIoTClient 21:167f8fcf6fb1 1682 result = 0;
AzureIoTClient 21:167f8fcf6fb1 1683
AzureIoTClient 21:167f8fcf6fb1 1684 IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 1685 if (cred_type == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1686 {
AzureIoTClient 21:167f8fcf6fb1 1687 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 21:167f8fcf6fb1 1688 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 21:167f8fcf6fb1 1689 sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, STRING_c_str(transport_data->devicesPath), expiryTime);
AzureIoTClient 21:167f8fcf6fb1 1690 if (sasToken == NULL)
AzureIoTClient 21:167f8fcf6fb1 1691 {
AzureIoTClient 21:167f8fcf6fb1 1692 LogError("failure getting sas Token.");
AzureIoTClient 21:167f8fcf6fb1 1693 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1694 }
AzureIoTClient 11:31ebaeb51e1e 1695 }
AzureIoTClient 21:167f8fcf6fb1 1696 else if (cred_type == IOTHUB_CREDENTIAL_TYPE_SAS_TOKEN)
AzureIoTClient 11:31ebaeb51e1e 1697 {
AzureIoTClient 21:167f8fcf6fb1 1698 SAS_TOKEN_STATUS token_status = IoTHubClient_Auth_Is_SasToken_Valid(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 1699 if (token_status == SAS_TOKEN_STATUS_INVALID)
AzureIoTClient 21:167f8fcf6fb1 1700 {
AzureIoTClient 21:167f8fcf6fb1 1701 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 21:167f8fcf6fb1 1702 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1703 }
AzureIoTClient 21:167f8fcf6fb1 1704 else if (token_status == SAS_TOKEN_STATUS_FAILED)
AzureIoTClient 11:31ebaeb51e1e 1705 {
AzureIoTClient 21:167f8fcf6fb1 1706 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 21:167f8fcf6fb1 1707 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1708 }
AzureIoTClient 21:167f8fcf6fb1 1709 else
AzureIoTClient 21:167f8fcf6fb1 1710 {
AzureIoTClient 21:167f8fcf6fb1 1711 sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, NULL, 0);
AzureIoTClient 21:167f8fcf6fb1 1712 if (sasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1713 {
AzureIoTClient 21:167f8fcf6fb1 1714 LogError("failure getting sas Token.");
AzureIoTClient 18:ec8e5e97c6a4 1715 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1716 }
AzureIoTClient 21:167f8fcf6fb1 1717 }
AzureIoTClient 21:167f8fcf6fb1 1718 }
AzureIoTClient 11:31ebaeb51e1e 1719
AzureIoTClient 21:167f8fcf6fb1 1720 if (result == 0)
AzureIoTClient 21:167f8fcf6fb1 1721 {
AzureIoTClient 22:07fec4d325b6 1722 void* product_info;
AzureIoTClient 22:07fec4d325b6 1723 STRING_HANDLE clone;
AzureIoTClient 22:07fec4d325b6 1724 if ((IoTHubClient_LL_GetOption(transport_data->llClientHandle, OPTION_PRODUCT_INFO, &product_info) == IOTHUB_CLIENT_ERROR) || (product_info == NULL))
AzureIoTClient 22:07fec4d325b6 1725 {
AzureIoTClient 22:07fec4d325b6 1726 clone = STRING_construct_sprintf("%s%%2F%s", CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
AzureIoTClient 22:07fec4d325b6 1727 }
AzureIoTClient 22:07fec4d325b6 1728 else
AzureIoTClient 22:07fec4d325b6 1729 {
AzureIoTClient 22:07fec4d325b6 1730 clone = URL_Encode(product_info);
AzureIoTClient 22:07fec4d325b6 1731 }
AzureIoTClient 22:07fec4d325b6 1732 if (clone != NULL)
AzureIoTClient 22:07fec4d325b6 1733 {
AzureIoTClient 22:07fec4d325b6 1734 (void)STRING_concat_with_STRING(transport_data->configPassedThroughUsername, clone);
AzureIoTClient 22:07fec4d325b6 1735 STRING_delete(clone);
AzureIoTClient 22:07fec4d325b6 1736 }
AzureIoTClient 22:07fec4d325b6 1737
AzureIoTClient 21:167f8fcf6fb1 1738 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 21:167f8fcf6fb1 1739 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 21:167f8fcf6fb1 1740 options.willMessage = NULL;
AzureIoTClient 21:167f8fcf6fb1 1741 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 21:167f8fcf6fb1 1742 if (sasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1743 {
AzureIoTClient 21:167f8fcf6fb1 1744 options.password = sasToken;
AzureIoTClient 21:167f8fcf6fb1 1745 }
AzureIoTClient 21:167f8fcf6fb1 1746 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 21:167f8fcf6fb1 1747 options.useCleanSession = false;
AzureIoTClient 21:167f8fcf6fb1 1748 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1749
AzureIoTClient 21:167f8fcf6fb1 1750 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 21:167f8fcf6fb1 1751 {
AzureIoTClient 21:167f8fcf6fb1 1752 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 11:31ebaeb51e1e 1753 {
AzureIoTClient 21:167f8fcf6fb1 1754 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 21:167f8fcf6fb1 1755 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1756 }
AzureIoTClient 11:31ebaeb51e1e 1757 else
AzureIoTClient 11:31ebaeb51e1e 1758 {
AzureIoTClient 21:167f8fcf6fb1 1759 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 21:167f8fcf6fb1 1760 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1761 }
AzureIoTClient 21:167f8fcf6fb1 1762 }
AzureIoTClient 21:167f8fcf6fb1 1763 else
AzureIoTClient 21:167f8fcf6fb1 1764 {
AzureIoTClient 21:167f8fcf6fb1 1765 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1766 }
AzureIoTClient 12:658ca6865de2 1767
AzureIoTClient 21:167f8fcf6fb1 1768 if (sasToken != NULL)
AzureIoTClient 21:167f8fcf6fb1 1769 {
AzureIoTClient 21:167f8fcf6fb1 1770 free(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1771 }
AzureIoTClient 11:31ebaeb51e1e 1772 }
AzureIoTClient 11:31ebaeb51e1e 1773 return result;
AzureIoTClient 11:31ebaeb51e1e 1774 }
AzureIoTClient 11:31ebaeb51e1e 1775
AzureIoTClient 20:594780be216d 1776 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 20:594780be216d 1777 {
AzureIoTClient 21:167f8fcf6fb1 1778 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1779 xio_destroy(transport_data->xioTransport);
AzureIoTClient 21:167f8fcf6fb1 1780 transport_data->xioTransport = NULL;
AzureIoTClient 20:594780be216d 1781
AzureIoTClient 21:167f8fcf6fb1 1782 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 21:167f8fcf6fb1 1783 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 20:594780be216d 1784 }
AzureIoTClient 20:594780be216d 1785
AzureIoTClient 11:31ebaeb51e1e 1786 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1787 {
AzureIoTClient 11:31ebaeb51e1e 1788 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1789
AzureIoTClient 11:31ebaeb51e1e 1790 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1791 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1792 {
AzureIoTClient 20:594780be216d 1793 // If we are MQTT_CLIENT_STATUS_NOT_CONNECTED then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1794 // to back off the connecting to the server
AzureIoTClient 20:594780be216d 1795 if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_NOT_CONNECTED && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1796 {
Azure.IoT.Build 13:606465879c57 1797 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1798 {
AzureIoTClient 12:658ca6865de2 1799 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1800 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1801 }
AzureIoTClient 12:658ca6865de2 1802 else
AzureIoTClient 11:31ebaeb51e1e 1803 {
AzureIoTClient 12:658ca6865de2 1804 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1805 {
AzureIoTClient 11:31ebaeb51e1e 1806 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1807 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1808 }
AzureIoTClient 11:31ebaeb51e1e 1809 else
AzureIoTClient 11:31ebaeb51e1e 1810 {
AzureIoTClient 20:594780be216d 1811 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTING;
AzureIoTClient 12:658ca6865de2 1812 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1813 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1814 }
AzureIoTClient 11:31ebaeb51e1e 1815 }
AzureIoTClient 11:31ebaeb51e1e 1816 }
AzureIoTClient 21:167f8fcf6fb1 1817 // 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]
AzureIoTClient 20:594780be216d 1818 else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTING)
AzureIoTClient 11:31ebaeb51e1e 1819 {
AzureIoTClient 20:594780be216d 1820 tickcounter_ms_t current_time;
AzureIoTClient 20:594780be216d 1821 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 20:594780be216d 1822 {
AzureIoTClient 20:594780be216d 1823 LogError("failed verifying MQTT_CLIENT_STATUS_CONNECTING timeout");
AzureIoTClient 20:594780be216d 1824 result = __FAILURE__;
AzureIoTClient 20:594780be216d 1825 }
AzureIoTClient 20:594780be216d 1826 else if ((current_time - transport_data->mqtt_connect_time) / 1000 > transport_data->keepAliveValue)
AzureIoTClient 20:594780be216d 1827 {
AzureIoTClient 20:594780be216d 1828 LogError("mqtt_client timed out waiting for CONNACK");
AzureIoTClient 20:594780be216d 1829 DisconnectFromClient(transport_data);
AzureIoTClient 20:594780be216d 1830 result = 0;
AzureIoTClient 20:594780be216d 1831 }
AzureIoTClient 20:594780be216d 1832 }
AzureIoTClient 20:594780be216d 1833 else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTED)
AzureIoTClient 20:594780be216d 1834 {
AzureIoTClient 20:594780be216d 1835 // We are connected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1836 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1837 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1838 {
AzureIoTClient 11:31ebaeb51e1e 1839 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1840 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1841 }
AzureIoTClient 11:31ebaeb51e1e 1842 else
AzureIoTClient 11:31ebaeb51e1e 1843 {
AzureIoTClient 11:31ebaeb51e1e 1844 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1845 {
AzureIoTClient 11:31ebaeb51e1e 1846 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 19:f87dfe76bc70 1847 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 20:594780be216d 1848 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1849 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1850 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1851 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1852 {
AzureIoTClient 11:31ebaeb51e1e 1853 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1854 }
AzureIoTClient 12:658ca6865de2 1855 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1856 {
AzureIoTClient 12:658ca6865de2 1857 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1858 }
AzureIoTClient 12:658ca6865de2 1859 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1860 {
AzureIoTClient 12:658ca6865de2 1861 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1862 }
AzureIoTClient 12:658ca6865de2 1863 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1864 {
AzureIoTClient 12:658ca6865de2 1865 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1866 }
AzureIoTClient 11:31ebaeb51e1e 1867 }
AzureIoTClient 11:31ebaeb51e1e 1868 }
AzureIoTClient 11:31ebaeb51e1e 1869 }
AzureIoTClient 11:31ebaeb51e1e 1870 }
AzureIoTClient 11:31ebaeb51e1e 1871 return result;
AzureIoTClient 11:31ebaeb51e1e 1872 }
AzureIoTClient 11:31ebaeb51e1e 1873
AzureIoTClient 11:31ebaeb51e1e 1874 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1875 {
AzureIoTClient 22:07fec4d325b6 1876 return STRING_construct_sprintf("%s.%s/%s/api-version=%s&DeviceClientType=", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, IOTHUB_API_VERSION);
AzureIoTClient 11:31ebaeb51e1e 1877 }
AzureIoTClient 11:31ebaeb51e1e 1878
AzureIoTClient 21:167f8fcf6fb1 1879 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend, IOTHUB_AUTHORIZATION_HANDLE auth_module)
AzureIoTClient 11:31ebaeb51e1e 1880 {
AzureIoTClient 11:31ebaeb51e1e 1881 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1882 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1883 {
AzureIoTClient 11:31ebaeb51e1e 1884 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1885 }
AzureIoTClient 11:31ebaeb51e1e 1886 else
AzureIoTClient 11:31ebaeb51e1e 1887 {
AzureIoTClient 21:167f8fcf6fb1 1888 memset(state, 0, sizeof(MQTTTRANSPORT_HANDLE_DATA) );
AzureIoTClient 21:167f8fcf6fb1 1889 if ((state->msgTickCounter = tickcounter_create()) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1890 {
AzureIoTClient 21:167f8fcf6fb1 1891 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 21:167f8fcf6fb1 1892 free(state);
AzureIoTClient 21:167f8fcf6fb1 1893 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1894 }
AzureIoTClient 21:167f8fcf6fb1 1895 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 21:167f8fcf6fb1 1896 {
AzureIoTClient 21:167f8fcf6fb1 1897 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1898 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1899 free(state);
AzureIoTClient 11:31ebaeb51e1e 1900 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1901 }
AzureIoTClient 21:167f8fcf6fb1 1902 else if ((state->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1903 {
Azure.IoT.Build 13:606465879c57 1904 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1905 free(state);
AzureIoTClient 11:31ebaeb51e1e 1906 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1907 }
AzureIoTClient 11:31ebaeb51e1e 1908 else
AzureIoTClient 11:31ebaeb51e1e 1909 {
AzureIoTClient 21:167f8fcf6fb1 1910 if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1911 {
AzureIoTClient 21:167f8fcf6fb1 1912 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1913 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1914 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1915 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1916 free(state);
AzureIoTClient 11:31ebaeb51e1e 1917 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1918 }
AzureIoTClient 11:31ebaeb51e1e 1919 else
AzureIoTClient 11:31ebaeb51e1e 1920 {
AzureIoTClient 21:167f8fcf6fb1 1921 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 21:167f8fcf6fb1 1922 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1923 {
AzureIoTClient 21:167f8fcf6fb1 1924 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1925 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1926 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1927 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1928 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1929 free(state);
AzureIoTClient 11:31ebaeb51e1e 1930 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1931 }
AzureIoTClient 11:31ebaeb51e1e 1932 else
AzureIoTClient 11:31ebaeb51e1e 1933 {
AzureIoTClient 21:167f8fcf6fb1 1934 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [If the upperConfig contains a valid protocolGatewayHostName value the this shall be used for the hostname, otherwise the hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 21:167f8fcf6fb1 1935 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 21:167f8fcf6fb1 1936 {
AzureIoTClient 21:167f8fcf6fb1 1937 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 21:167f8fcf6fb1 1938 }
AzureIoTClient 21:167f8fcf6fb1 1939 else
AzureIoTClient 21:167f8fcf6fb1 1940 {
AzureIoTClient 21:167f8fcf6fb1 1941 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 21:167f8fcf6fb1 1942 }
AzureIoTClient 21:167f8fcf6fb1 1943
AzureIoTClient 21:167f8fcf6fb1 1944 if (state->hostAddress == NULL)
AzureIoTClient 21:167f8fcf6fb1 1945 {
AzureIoTClient 21:167f8fcf6fb1 1946 LogError("failure constructing host address.");
AzureIoTClient 21:167f8fcf6fb1 1947 STRING_delete(state->devicesPath);
AzureIoTClient 21:167f8fcf6fb1 1948 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1949 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 21:167f8fcf6fb1 1950 STRING_delete(state->device_id);
AzureIoTClient 21:167f8fcf6fb1 1951 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 21:167f8fcf6fb1 1952 free(state);
AzureIoTClient 21:167f8fcf6fb1 1953 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1954 }
AzureIoTClient 21:167f8fcf6fb1 1955 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 21:167f8fcf6fb1 1956 {
AzureIoTClient 21:167f8fcf6fb1 1957 STRING_delete(state->devicesPath);
AzureIoTClient 21:167f8fcf6fb1 1958 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1959 STRING_delete(state->hostAddress);
AzureIoTClient 21:167f8fcf6fb1 1960 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 21:167f8fcf6fb1 1961 STRING_delete(state->device_id);
AzureIoTClient 21:167f8fcf6fb1 1962 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 21:167f8fcf6fb1 1963 free(state);
AzureIoTClient 21:167f8fcf6fb1 1964 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1965 }
AzureIoTClient 21:167f8fcf6fb1 1966 else
AzureIoTClient 21:167f8fcf6fb1 1967 {
AzureIoTClient 21:167f8fcf6fb1 1968 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransport_MQTT_Common_Create shall allocate memory to save its internal state where all topics, hostname, device_id, device_key, sasTokenSr and client handle shall be saved.] */
AzureIoTClient 21:167f8fcf6fb1 1969 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 21:167f8fcf6fb1 1970 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 21:167f8fcf6fb1 1971 state->isDestroyCalled = false;
AzureIoTClient 21:167f8fcf6fb1 1972 state->isRegistered = false;
AzureIoTClient 21:167f8fcf6fb1 1973 state->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 21:167f8fcf6fb1 1974 state->device_twin_get_sent = false;
AzureIoTClient 21:167f8fcf6fb1 1975 state->isRecoverableError = true;
AzureIoTClient 21:167f8fcf6fb1 1976 state->packetId = 1;
AzureIoTClient 21:167f8fcf6fb1 1977 state->llClientHandle = NULL;
AzureIoTClient 21:167f8fcf6fb1 1978 state->xioTransport = NULL;
AzureIoTClient 21:167f8fcf6fb1 1979 state->portNum = 0;
AzureIoTClient 21:167f8fcf6fb1 1980 state->waitingToSend = waitingToSend;
AzureIoTClient 21:167f8fcf6fb1 1981 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 21:167f8fcf6fb1 1982 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 21:167f8fcf6fb1 1983 state->connectFailCount = 0;
AzureIoTClient 21:167f8fcf6fb1 1984 state->connectTick = 0;
AzureIoTClient 21:167f8fcf6fb1 1985 state->topic_MqttMessage = NULL;
AzureIoTClient 21:167f8fcf6fb1 1986 state->topic_GetState = NULL;
AzureIoTClient 21:167f8fcf6fb1 1987 state->topic_NotifyState = NULL;
AzureIoTClient 21:167f8fcf6fb1 1988 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 21:167f8fcf6fb1 1989 state->topic_DeviceMethods = NULL;
AzureIoTClient 21:167f8fcf6fb1 1990 state->log_trace = state->raw_trace = false;
AzureIoTClient 21:167f8fcf6fb1 1991 state->retryLogic = NULL;
AzureIoTClient 21:167f8fcf6fb1 1992 srand((unsigned int)get_time(NULL));
AzureIoTClient 21:167f8fcf6fb1 1993 state->authorization_module = auth_module;
AzureIoTClient 21:167f8fcf6fb1 1994 }
AzureIoTClient 11:31ebaeb51e1e 1995 }
AzureIoTClient 11:31ebaeb51e1e 1996 }
AzureIoTClient 11:31ebaeb51e1e 1997 }
AzureIoTClient 11:31ebaeb51e1e 1998 }
AzureIoTClient 11:31ebaeb51e1e 1999 return state;
AzureIoTClient 11:31ebaeb51e1e 2000 }
AzureIoTClient 11:31ebaeb51e1e 2001
AzureIoTClient 11:31ebaeb51e1e 2002 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 2003 {
AzureIoTClient 11:31ebaeb51e1e 2004 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 2005 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 2006
AzureIoTClient 12:658ca6865de2 2007 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2008 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ if get_io_transport is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL. ] */
AzureIoTClient 11:31ebaeb51e1e 2009 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 2010 {
AzureIoTClient 11:31ebaeb51e1e 2011 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2012 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2013 }
AzureIoTClient 12:658ca6865de2 2014 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 2015 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 2016 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_003: [If both deviceKey & deviceSasToken fields are NOT NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2017 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 2018 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 2019 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 2020 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 2021 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 2022 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 2023 {
AzureIoTClient 11:31ebaeb51e1e 2024 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 2025 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2026 }
AzureIoTClient 21:167f8fcf6fb1 2027 /* 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.] */
AzureIoTClient 11:31ebaeb51e1e 2028 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 2029 {
AzureIoTClient 11:31ebaeb51e1e 2030 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 2031 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2032 }
AzureIoTClient 21:167f8fcf6fb1 2033 /* 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.] */
AzureIoTClient 21:167f8fcf6fb1 2034 else if (config->auth_module_handle == NULL)
AzureIoTClient 21:167f8fcf6fb1 2035 {
AzureIoTClient 21:167f8fcf6fb1 2036 LogError("Invalid Argument: auth_module_handle is NULL)");
AzureIoTClient 21:167f8fcf6fb1 2037 result = NULL;
AzureIoTClient 21:167f8fcf6fb1 2038 }
AzureIoTClient 12:658ca6865de2 2039 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_006: [If the upperConfig's variables deviceId is an empty strings or length is greater then 128 then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2040 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 2041 {
AzureIoTClient 11:31ebaeb51e1e 2042 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 2043 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2044 }
AzureIoTClient 12:658ca6865de2 2045 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2046 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 2047 {
AzureIoTClient 11:31ebaeb51e1e 2048 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 2049 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2050 }
AzureIoTClient 12:658ca6865de2 2051 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, both deviceKey and deviceSasToken, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2052 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 2053 {
AzureIoTClient 11:31ebaeb51e1e 2054 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 2055 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2056 }
AzureIoTClient 12:658ca6865de2 2057 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_003: [If the upperConfig's variables deviceId, deviceKey, iotHubName, protocol, or iotHubSuffix are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2058 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 2059 {
AzureIoTClient 11:31ebaeb51e1e 2060 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 2061 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2062 }
AzureIoTClient 11:31ebaeb51e1e 2063 else
AzureIoTClient 11:31ebaeb51e1e 2064 {
AzureIoTClient 21:167f8fcf6fb1 2065 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend, config->auth_module_handle);
Azure.IoT.Build 13:606465879c57 2066 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 2067 {
AzureIoTClient 11:31ebaeb51e1e 2068 result->get_io_transport = get_io_transport;
AzureIoTClient 20:594780be216d 2069 result->http_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 2070 result->http_proxy_username = NULL;
AzureIoTClient 20:594780be216d 2071 result->http_proxy_password = NULL;
AzureIoTClient 11:31ebaeb51e1e 2072 }
AzureIoTClient 11:31ebaeb51e1e 2073 }
AzureIoTClient 12:658ca6865de2 2074 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 2075 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 2076 return result;
AzureIoTClient 11:31ebaeb51e1e 2077 }
AzureIoTClient 11:31ebaeb51e1e 2078
AzureIoTClient 11:31ebaeb51e1e 2079 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2080 {
AzureIoTClient 12:658ca6865de2 2081 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2082 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2083 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2084 {
AzureIoTClient 11:31ebaeb51e1e 2085 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 2086
AzureIoTClient 11:31ebaeb51e1e 2087 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2088
AzureIoTClient 11:31ebaeb51e1e 2089 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 2090 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 2091 {
AzureIoTClient 11:31ebaeb51e1e 2092 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 2093 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2094 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 2095 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2096 }
AzureIoTClient 12:658ca6865de2 2097 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 2098 {
AzureIoTClient 12:658ca6865de2 2099 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 2100 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 2101 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 2102 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 2103 }
AzureIoTClient 11:31ebaeb51e1e 2104
AzureIoTClient 21:167f8fcf6fb1 2105 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 2106
AzureIoTClient 12:658ca6865de2 2107 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 2108 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2109 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 2110 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2111 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 2112 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 2113 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 2114 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2115 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2116 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2117
Azure.IoT.Build 13:606465879c57 2118 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 2119 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 20:594780be216d 2120 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_012: [ `IoTHubTransport_MQTT_Common_Destroy` shall free the stored proxy options. ]*/
AzureIoTClient 20:594780be216d 2121 free_proxy_data(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2122 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2123 }
AzureIoTClient 11:31ebaeb51e1e 2124 }
AzureIoTClient 11:31ebaeb51e1e 2125
AzureIoTClient 12:658ca6865de2 2126 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2127 {
AzureIoTClient 12:658ca6865de2 2128 int result;
AzureIoTClient 12:658ca6865de2 2129 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2130 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2131 {
AzureIoTClient 12:658ca6865de2 2132 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_042: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2133 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2134 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2135 }
AzureIoTClient 12:658ca6865de2 2136 else
AzureIoTClient 12:658ca6865de2 2137 {
AzureIoTClient 12:658ca6865de2 2138 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2139 {
AzureIoTClient 12:658ca6865de2 2140 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_044: [IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall construct the get state topic string and the notify state topic string.] */
AzureIoTClient 12:658ca6865de2 2141 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2142 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2143 {
AzureIoTClient 12:658ca6865de2 2144 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2145 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 18:ec8e5e97c6a4 2146 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2147 }
AzureIoTClient 12:658ca6865de2 2148 else
AzureIoTClient 12:658ca6865de2 2149 {
AzureIoTClient 12:658ca6865de2 2150 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2151 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2152 result = 0;
AzureIoTClient 12:658ca6865de2 2153 }
AzureIoTClient 12:658ca6865de2 2154 }
AzureIoTClient 12:658ca6865de2 2155 else
AzureIoTClient 12:658ca6865de2 2156 {
AzureIoTClient 12:658ca6865de2 2157 result = 0;
AzureIoTClient 12:658ca6865de2 2158 }
AzureIoTClient 12:658ca6865de2 2159 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2160 {
AzureIoTClient 12:658ca6865de2 2161 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_044: [`IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin` shall construct the get state topic string and the notify state topic string.] */
AzureIoTClient 12:658ca6865de2 2162 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2163 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2164 {
AzureIoTClient 12:658ca6865de2 2165 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 18:ec8e5e97c6a4 2166 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2167 }
AzureIoTClient 12:658ca6865de2 2168 else
AzureIoTClient 12:658ca6865de2 2169 {
AzureIoTClient 12:658ca6865de2 2170 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2171 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2172 result = 0;
AzureIoTClient 12:658ca6865de2 2173 }
AzureIoTClient 12:658ca6865de2 2174 }
AzureIoTClient 12:658ca6865de2 2175 if (result == 0)
AzureIoTClient 12:658ca6865de2 2176 {
AzureIoTClient 12:658ca6865de2 2177 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2178 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2179 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2180 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2181 {
AzureIoTClient 12:658ca6865de2 2182 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2183 }
AzureIoTClient 12:658ca6865de2 2184 }
AzureIoTClient 12:658ca6865de2 2185 }
AzureIoTClient 12:658ca6865de2 2186 return result;
AzureIoTClient 12:658ca6865de2 2187 }
AzureIoTClient 12:658ca6865de2 2188
AzureIoTClient 12:658ca6865de2 2189 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2190 {
AzureIoTClient 12:658ca6865de2 2191 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2192 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_048: [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall do nothing.] */
AzureIoTClient 12:658ca6865de2 2193 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2194 {
AzureIoTClient 12:658ca6865de2 2195 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2196 {
AzureIoTClient 12:658ca6865de2 2197 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_049: [If subscribe_state is set to IOTHUB_DEVICE_TWIN_DESIRED_STATE then IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall unsubscribe from the topic_GetState to the mqtt client.] */
AzureIoTClient 12:658ca6865de2 2198 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2199 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2200 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2201 }
AzureIoTClient 12:658ca6865de2 2202 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2203 {
AzureIoTClient 12:658ca6865de2 2204 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_050: [If subscribe_state is set to IOTHUB_DEVICE_TWIN_NOTIFICATION_STATE then IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin shall unsubscribe from the topic_NotifyState to the mqtt client.] */
AzureIoTClient 12:658ca6865de2 2205 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2206 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2207 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2208 }
AzureIoTClient 12:658ca6865de2 2209 }
AzureIoTClient 12:658ca6865de2 2210 else
AzureIoTClient 12:658ca6865de2 2211 {
AzureIoTClient 12:658ca6865de2 2212 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2213 }
AzureIoTClient 12:658ca6865de2 2214 }
AzureIoTClient 12:658ca6865de2 2215
AzureIoTClient 12:658ca6865de2 2216 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2217 {
AzureIoTClient 12:658ca6865de2 2218 int result;
AzureIoTClient 12:658ca6865de2 2219 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2220
AzureIoTClient 12:658ca6865de2 2221 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2222 {
AzureIoTClient 12:658ca6865de2 2223 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_001 : [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2224 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2225 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2226 }
AzureIoTClient 12:658ca6865de2 2227 else
AzureIoTClient 12:658ca6865de2 2228 {
AzureIoTClient 12:658ca6865de2 2229 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2230 {
AzureIoTClient 12:658ca6865de2 2231 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2232 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2233 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2234 {
AzureIoTClient 12:658ca6865de2 2235 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2236 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 18:ec8e5e97c6a4 2237 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2238 }
AzureIoTClient 12:658ca6865de2 2239 else
AzureIoTClient 12:658ca6865de2 2240 {
AzureIoTClient 12:658ca6865de2 2241 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_003 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall set the signaling flag for DEVICE_METHOD topic for the receiver's topic list. ]*/
AzureIoTClient 12:658ca6865de2 2242 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2243 result = 0;
AzureIoTClient 12:658ca6865de2 2244 }
AzureIoTClient 12:658ca6865de2 2245 }
AzureIoTClient 12:658ca6865de2 2246 else
AzureIoTClient 12:658ca6865de2 2247 {
AzureIoTClient 12:658ca6865de2 2248 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_002 : [If the MQTT transport has been previously subscribed to DEVICE_METHOD topic IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall do nothing and return 0.]*/
AzureIoTClient 12:658ca6865de2 2249 result = 0;
AzureIoTClient 12:658ca6865de2 2250 }
AzureIoTClient 12:658ca6865de2 2251
AzureIoTClient 12:658ca6865de2 2252 if (result == 0)
AzureIoTClient 12:658ca6865de2 2253 {
AzureIoTClient 12:658ca6865de2 2254 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2255 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2256 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2257 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2258 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2259 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2260 {
AzureIoTClient 12:658ca6865de2 2261 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2262 }
AzureIoTClient 12:658ca6865de2 2263 }
AzureIoTClient 12:658ca6865de2 2264 }
AzureIoTClient 12:658ca6865de2 2265 return result;
AzureIoTClient 12:658ca6865de2 2266 }
AzureIoTClient 12:658ca6865de2 2267
AzureIoTClient 12:658ca6865de2 2268 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2269 {
AzureIoTClient 12:658ca6865de2 2270 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2271 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_008 : [If the parameter handle is NULL than IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall do nothing and return.]*/
AzureIoTClient 12:658ca6865de2 2272 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2273 {
AzureIoTClient 12:658ca6865de2 2274 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_009 : [If the MQTT transport has not been subscribed to DEVICE_METHOD topic IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall do nothing and return.]*/
AzureIoTClient 12:658ca6865de2 2275 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2276 {
AzureIoTClient 12:658ca6865de2 2277 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2278 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2279 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2280
AzureIoTClient 12:658ca6865de2 2281 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2282 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2283 {
AzureIoTClient 12:658ca6865de2 2284 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2285 }
AzureIoTClient 12:658ca6865de2 2286
AzureIoTClient 12:658ca6865de2 2287 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_012 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall removes the signaling flag for DEVICE_METHOD topic from the receiver's topic list. ]*/
AzureIoTClient 12:658ca6865de2 2288 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2289 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2290 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2291 }
AzureIoTClient 12:658ca6865de2 2292 }
AzureIoTClient 12:658ca6865de2 2293 else
AzureIoTClient 12:658ca6865de2 2294 {
AzureIoTClient 12:658ca6865de2 2295 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2296 }
AzureIoTClient 12:658ca6865de2 2297 }
AzureIoTClient 12:658ca6865de2 2298
AzureIoTClient 14:4dc2b011be33 2299 int IoTHubTransport_MQTT_Common_DeviceMethod_Response(IOTHUB_DEVICE_HANDLE handle, METHOD_HANDLE methodId, const unsigned char* response, size_t respSize, int status)
AzureIoTClient 14:4dc2b011be33 2300 {
AzureIoTClient 14:4dc2b011be33 2301 int result;
AzureIoTClient 14:4dc2b011be33 2302 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 14:4dc2b011be33 2303 if (transport_data != NULL)
AzureIoTClient 14:4dc2b011be33 2304 {
AzureIoTClient 14:4dc2b011be33 2305 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_042: [ IoTHubTransport_MQTT_Common_DeviceMethod_Response shall publish an mqtt message for the device method response. ] */
AzureIoTClient 14:4dc2b011be33 2306 DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
AzureIoTClient 14:4dc2b011be33 2307 if (dev_method_info == NULL)
AzureIoTClient 14:4dc2b011be33 2308 {
AzureIoTClient 14:4dc2b011be33 2309 LogError("Failure: DEVICE_METHOD_INFO was NULL");
AzureIoTClient 18:ec8e5e97c6a4 2310 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2311 }
AzureIoTClient 14:4dc2b011be33 2312 else
AzureIoTClient 14:4dc2b011be33 2313 {
AzureIoTClient 14:4dc2b011be33 2314 if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
AzureIoTClient 14:4dc2b011be33 2315 {
AzureIoTClient 14:4dc2b011be33 2316 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_051: [ If any error is encountered, IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 14:4dc2b011be33 2317 LogError("Failure: publishing device method response");
AzureIoTClient 18:ec8e5e97c6a4 2318 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2319 }
AzureIoTClient 14:4dc2b011be33 2320 else
AzureIoTClient 14:4dc2b011be33 2321 {
AzureIoTClient 14:4dc2b011be33 2322 result = 0;
AzureIoTClient 14:4dc2b011be33 2323 }
AzureIoTClient 14:4dc2b011be33 2324 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 2325 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 2326 }
AzureIoTClient 14:4dc2b011be33 2327 }
AzureIoTClient 14:4dc2b011be33 2328 else
AzureIoTClient 14:4dc2b011be33 2329 {
AzureIoTClient 14:4dc2b011be33 2330 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ If the parameter handle is NULL than IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 18:ec8e5e97c6a4 2331 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2332 LogError("Failure: invalid IOTHUB_DEVICE_HANDLE parameter specified");
AzureIoTClient 14:4dc2b011be33 2333 }
AzureIoTClient 14:4dc2b011be33 2334 return result;
AzureIoTClient 14:4dc2b011be33 2335 }
AzureIoTClient 14:4dc2b011be33 2336
AzureIoTClient 11:31ebaeb51e1e 2337 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2338 {
AzureIoTClient 11:31ebaeb51e1e 2339 int result;
AzureIoTClient 11:31ebaeb51e1e 2340 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2341 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2342 {
AzureIoTClient 12:658ca6865de2 2343 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_015: [If parameter handle is NULL than IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 2344 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2345 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2346 }
AzureIoTClient 11:31ebaeb51e1e 2347 else
AzureIoTClient 11:31ebaeb51e1e 2348 {
AzureIoTClient 12:658ca6865de2 2349 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_016: [IoTHubTransport_MQTT_Common_Subscribe shall set a flag to enable mqtt_client_subscribe to be called to subscribe to the Message Topic.] */
AzureIoTClient 11:31ebaeb51e1e 2350 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2351 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2352 {
AzureIoTClient 11:31ebaeb51e1e 2353 LogError("Failure constructing Message Topic");
AzureIoTClient 18:ec8e5e97c6a4 2354 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2355 }
AzureIoTClient 11:31ebaeb51e1e 2356 else
AzureIoTClient 11:31ebaeb51e1e 2357 {
AzureIoTClient 11:31ebaeb51e1e 2358 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2359 /* Code_SRS_IOTHUB_MQTT_TRANSPORT_07_035: [If current packet state is not CONNACT, DISCONNECT_TYPE, or PACKET_TYPE_ERROR then IoTHubTransport_MQTT_Common_Subscribe shall set the packet state to SUBSCRIBE_TYPE.]*/
AzureIoTClient 11:31ebaeb51e1e 2360 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2361 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2362 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2363 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2364 {
AzureIoTClient 11:31ebaeb51e1e 2365 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2366 }
AzureIoTClient 11:31ebaeb51e1e 2367 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2368 }
AzureIoTClient 11:31ebaeb51e1e 2369 }
AzureIoTClient 11:31ebaeb51e1e 2370 return result;
AzureIoTClient 11:31ebaeb51e1e 2371 }
AzureIoTClient 11:31ebaeb51e1e 2372
AzureIoTClient 11:31ebaeb51e1e 2373 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2374 {
AzureIoTClient 11:31ebaeb51e1e 2375 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2376 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2377 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2378 {
AzureIoTClient 12:658ca6865de2 2379 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransport_MQTT_Common_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
AzureIoTClient 11:31ebaeb51e1e 2380 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2381 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2382 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2383 {
AzureIoTClient 11:31ebaeb51e1e 2384 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2385 }
AzureIoTClient 11:31ebaeb51e1e 2386 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2387 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2388 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2389 }
AzureIoTClient 11:31ebaeb51e1e 2390 else
AzureIoTClient 11:31ebaeb51e1e 2391 {
AzureIoTClient 11:31ebaeb51e1e 2392 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2393 }
AzureIoTClient 11:31ebaeb51e1e 2394 }
AzureIoTClient 11:31ebaeb51e1e 2395
AzureIoTClient 12:658ca6865de2 2396 IOTHUB_PROCESS_ITEM_RESULT IoTHubTransport_MQTT_Common_ProcessItem(TRANSPORT_LL_HANDLE handle, IOTHUB_IDENTITY_TYPE item_type, IOTHUB_IDENTITY_INFO* iothub_item)
AzureIoTClient 12:658ca6865de2 2397 {
AzureIoTClient 12:658ca6865de2 2398 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2399 /* Codes_SRS_IOTHUBCLIENT_LL_07_001: [ If handle or iothub_item are NULL then IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2400 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2401 {
AzureIoTClient 12:658ca6865de2 2402 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2403 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2404 }
AzureIoTClient 12:658ca6865de2 2405 else
AzureIoTClient 12:658ca6865de2 2406 {
AzureIoTClient 12:658ca6865de2 2407 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2408
AzureIoTClient 12:658ca6865de2 2409 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2410 {
AzureIoTClient 12:658ca6865de2 2411 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2412 {
AzureIoTClient 12:658ca6865de2 2413 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2414 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2415 {
AzureIoTClient 12:658ca6865de2 2416 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2417 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2418 }
AzureIoTClient 12:658ca6865de2 2419 else
AzureIoTClient 12:658ca6865de2 2420 {
AzureIoTClient 12:658ca6865de2 2421 /*Codes_SRS_IOTHUBCLIENT_LL_07_003: [ IoTHubTransport_MQTT_Common_ProcessItem shall publish a message to the mqtt protocol with the message topic for the message type.]*/
AzureIoTClient 12:658ca6865de2 2422 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2423 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2424 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2425
AzureIoTClient 12:658ca6865de2 2426 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2427 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2428
AzureIoTClient 12:658ca6865de2 2429 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2430 {
AzureIoTClient 12:658ca6865de2 2431 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2432
AzureIoTClient 12:658ca6865de2 2433 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2434 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2435 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2436 }
AzureIoTClient 12:658ca6865de2 2437 else
AzureIoTClient 12:658ca6865de2 2438 {
AzureIoTClient 12:658ca6865de2 2439 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2440 }
AzureIoTClient 12:658ca6865de2 2441 }
AzureIoTClient 12:658ca6865de2 2442 }
AzureIoTClient 12:658ca6865de2 2443 else
AzureIoTClient 12:658ca6865de2 2444 {
AzureIoTClient 12:658ca6865de2 2445 /* Codes_SRS_IOTHUBCLIENT_LL_07_006: [ If the item_type is not a supported type IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_CONTINUE. ]*/
AzureIoTClient 12:658ca6865de2 2446 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2447 }
AzureIoTClient 12:658ca6865de2 2448 }
AzureIoTClient 12:658ca6865de2 2449 else
AzureIoTClient 12:658ca6865de2 2450 {
AzureIoTClient 12:658ca6865de2 2451 /* Codes_SRS_IOTHUBCLIENT_LL_07_002: [ If the mqtt is not ready to publish messages IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_NOT_CONNECTED. ] */
AzureIoTClient 12:658ca6865de2 2452 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2453 }
AzureIoTClient 12:658ca6865de2 2454 }
AzureIoTClient 12:658ca6865de2 2455 return result;
AzureIoTClient 12:658ca6865de2 2456 }
AzureIoTClient 12:658ca6865de2 2457
AzureIoTClient 12:658ca6865de2 2458 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_054: [ IoTHubTransport_MQTT_Common_DoWork shall subscribe to the Notification and get_state Topics if they are defined. ] */
AzureIoTClient 11:31ebaeb51e1e 2459 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2460 {
AzureIoTClient 12:658ca6865de2 2461 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_026: [IoTHubTransport_MQTT_Common_DoWork shall do nothing if parameter handle and/or iotHubClientHandle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2462 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2463 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2464 {
AzureIoTClient 11:31ebaeb51e1e 2465 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2466
AzureIoTClient 11:31ebaeb51e1e 2467 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2468 {
AzureIoTClient 11:31ebaeb51e1e 2469 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2470 }
AzureIoTClient 11:31ebaeb51e1e 2471 else
AzureIoTClient 11:31ebaeb51e1e 2472 {
AzureIoTClient 11:31ebaeb51e1e 2473 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2474 {
AzureIoTClient 11:31ebaeb51e1e 2475 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2476 }
AzureIoTClient 11:31ebaeb51e1e 2477 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2478 {
AzureIoTClient 12:658ca6865de2 2479 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2480 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2481 {
AzureIoTClient 12:658ca6865de2 2482 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_055: [ IoTHubTransport_MQTT_Common_DoWork shall send a device twin get property message upon successfully retrieving a SUBACK on device twin topics. ] */
AzureIoTClient 12:658ca6865de2 2483 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2484 {
AzureIoTClient 12:658ca6865de2 2485 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2486 }
AzureIoTClient 12:658ca6865de2 2487 else
AzureIoTClient 12:658ca6865de2 2488 {
AzureIoTClient 12:658ca6865de2 2489 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2490 }
AzureIoTClient 12:658ca6865de2 2491 }
AzureIoTClient 11:31ebaeb51e1e 2492 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2493 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2494 }
AzureIoTClient 11:31ebaeb51e1e 2495 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2496 {
AzureIoTClient 11:31ebaeb51e1e 2497 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2498 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2499 {
AzureIoTClient 11:31ebaeb51e1e 2500 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2501 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2502 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2503
Azure.IoT.Build 13:606465879c57 2504 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2505 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2506 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_033: [IoTHubTransport_MQTT_Common_DoWork shall iterate through the Waiting Acknowledge messages looking for any message that has been waiting longer than 2 min.]*/
AzureIoTClient 11:31ebaeb51e1e 2507 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2508 {
AzureIoTClient 12:658ca6865de2 2509 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_034: [If IoTHubTransport_MQTT_Common_DoWork has resent the message two times then it shall fail the message] */
AzureIoTClient 11:31ebaeb51e1e 2510 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2511 {
AzureIoTClient 11:31ebaeb51e1e 2512 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2513 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2514 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2515 }
AzureIoTClient 11:31ebaeb51e1e 2516 else
AzureIoTClient 11:31ebaeb51e1e 2517 {
AzureIoTClient 11:31ebaeb51e1e 2518 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2519 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2520 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2521 {
AzureIoTClient 11:31ebaeb51e1e 2522 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2523 }
AzureIoTClient 11:31ebaeb51e1e 2524 else
AzureIoTClient 11:31ebaeb51e1e 2525 {
AzureIoTClient 11:31ebaeb51e1e 2526 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2527 {
AzureIoTClient 11:31ebaeb51e1e 2528 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2529 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2530 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2531 }
AzureIoTClient 11:31ebaeb51e1e 2532 }
AzureIoTClient 11:31ebaeb51e1e 2533 }
AzureIoTClient 11:31ebaeb51e1e 2534 }
AzureIoTClient 11:31ebaeb51e1e 2535 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2536 }
AzureIoTClient 11:31ebaeb51e1e 2537
AzureIoTClient 11:31ebaeb51e1e 2538 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2539 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2540 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2541 {
AzureIoTClient 11:31ebaeb51e1e 2542 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2543 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2544 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2545
AzureIoTClient 12:658ca6865de2 2546 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2547 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2548 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2549 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2550 {
AzureIoTClient 11:31ebaeb51e1e 2551 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2552 }
AzureIoTClient 11:31ebaeb51e1e 2553 else
AzureIoTClient 11:31ebaeb51e1e 2554 {
AzureIoTClient 12:658ca6865de2 2555 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_029: [IoTHubTransport_MQTT_Common_DoWork shall create a MQTT_MESSAGE_HANDLE and pass this to a call to mqtt_client_publish.] */
AzureIoTClient 11:31ebaeb51e1e 2556 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2557 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2558 {
AzureIoTClient 11:31ebaeb51e1e 2559 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2560 }
AzureIoTClient 11:31ebaeb51e1e 2561 else
AzureIoTClient 11:31ebaeb51e1e 2562 {
AzureIoTClient 11:31ebaeb51e1e 2563 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2564 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2565 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2566 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2567 {
AzureIoTClient 11:31ebaeb51e1e 2568 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2569 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2570 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2571 }
AzureIoTClient 11:31ebaeb51e1e 2572 else
AzureIoTClient 11:31ebaeb51e1e 2573 {
AzureIoTClient 11:31ebaeb51e1e 2574 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2575 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2576 }
AzureIoTClient 11:31ebaeb51e1e 2577 }
AzureIoTClient 11:31ebaeb51e1e 2578 }
AzureIoTClient 11:31ebaeb51e1e 2579 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2580 }
AzureIoTClient 11:31ebaeb51e1e 2581 }
AzureIoTClient 20:594780be216d 2582 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransport_MQTT_Common_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
AzureIoTClient 11:31ebaeb51e1e 2583 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2584 }
AzureIoTClient 11:31ebaeb51e1e 2585 }
AzureIoTClient 11:31ebaeb51e1e 2586 }
AzureIoTClient 11:31ebaeb51e1e 2587
AzureIoTClient 11:31ebaeb51e1e 2588 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2589 {
AzureIoTClient 11:31ebaeb51e1e 2590 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2591
AzureIoTClient 11:31ebaeb51e1e 2592 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2593 {
AzureIoTClient 12:658ca6865de2 2594 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_023: [IoTHubTransport_MQTT_Common_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter.] */
AzureIoTClient 11:31ebaeb51e1e 2595 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2596 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2597 }
AzureIoTClient 11:31ebaeb51e1e 2598 else
AzureIoTClient 11:31ebaeb51e1e 2599 {
AzureIoTClient 11:31ebaeb51e1e 2600 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2601 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2602 {
AzureIoTClient 12:658ca6865de2 2603 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_025: [IoTHubTransport_MQTT_Common_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_BUSY if there are currently event items to be sent or being sent.] */
AzureIoTClient 11:31ebaeb51e1e 2604 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2605 }
AzureIoTClient 11:31ebaeb51e1e 2606 else
AzureIoTClient 11:31ebaeb51e1e 2607 {
AzureIoTClient 12:658ca6865de2 2608 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_024: [IoTHubTransport_MQTT_Common_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_IDLE if there are currently no event items to be sent or being sent.] */
AzureIoTClient 11:31ebaeb51e1e 2609 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2610 }
AzureIoTClient 11:31ebaeb51e1e 2611 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2612 }
AzureIoTClient 11:31ebaeb51e1e 2613 return result;
AzureIoTClient 11:31ebaeb51e1e 2614 }
AzureIoTClient 11:31ebaeb51e1e 2615
AzureIoTClient 11:31ebaeb51e1e 2616 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2617 {
AzureIoTClient 12:658ca6865de2 2618 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_021: [If any parameter is NULL then IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
AzureIoTClient 11:31ebaeb51e1e 2619 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2620 if (
AzureIoTClient 11:31ebaeb51e1e 2621 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2622 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2623 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2624 )
AzureIoTClient 11:31ebaeb51e1e 2625 {
AzureIoTClient 11:31ebaeb51e1e 2626 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2627 LogError("invalid parameter (NULL) passed to IoTHubTransport_MQTT_Common_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2628 }
AzureIoTClient 11:31ebaeb51e1e 2629 else
AzureIoTClient 11:31ebaeb51e1e 2630 {
AzureIoTClient 11:31ebaeb51e1e 2631 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 21:167f8fcf6fb1 2632
AzureIoTClient 21:167f8fcf6fb1 2633 IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 2634
AzureIoTClient 11:31ebaeb51e1e 2635 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_031: [If the option parameter is set to "logtrace" then the value shall be a bool_ptr and the value will determine if the mqtt client log is on or off.] */
AzureIoTClient 11:31ebaeb51e1e 2636 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2637 {
AzureIoTClient 11:31ebaeb51e1e 2638 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2639 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2640 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2641 }
AzureIoTClient 11:31ebaeb51e1e 2642 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2643 {
AzureIoTClient 11:31ebaeb51e1e 2644 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2645 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2646 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2647 }
AzureIoTClient 11:31ebaeb51e1e 2648 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2649 {
AzureIoTClient 11:31ebaeb51e1e 2650 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_036: [If the option parameter is set to "keepalive" then the value shall be a int_ptr and the value will determine the mqtt keepalive time that is set for pings.] */
AzureIoTClient 11:31ebaeb51e1e 2651 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2652 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_037 : [If the option parameter is set to supplied int_ptr keepalive is the same value as the existing keepalive then IoTHubTransport_MQTT_Common_SetOption shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2653 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2654 {
AzureIoTClient 11:31ebaeb51e1e 2655 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 20:594780be216d 2656 if (transport_data->mqttClientStatus != MQTT_CLIENT_STATUS_NOT_CONNECTED)
AzureIoTClient 11:31ebaeb51e1e 2657 {
AzureIoTClient 20:594780be216d 2658 /* 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.] */
AzureIoTClient 11:31ebaeb51e1e 2659 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2660 }
AzureIoTClient 11:31ebaeb51e1e 2661 }
AzureIoTClient 11:31ebaeb51e1e 2662 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2663 }
AzureIoTClient 11:31ebaeb51e1e 2664 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2665 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
AzureIoTClient 11:31ebaeb51e1e 2666 {
AzureIoTClient 11:31ebaeb51e1e 2667 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2668 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2669 }
AzureIoTClient 11:31ebaeb51e1e 2670 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_040: [If the option parameter is set to "x509privatekey" then the value shall be a const char of the RSA Private Key to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2671 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
AzureIoTClient 11:31ebaeb51e1e 2672 {
AzureIoTClient 11:31ebaeb51e1e 2673 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2674 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2675 }
AzureIoTClient 20:594780be216d 2676 else if (strcmp(OPTION_HTTP_PROXY, option) == 0)
AzureIoTClient 20:594780be216d 2677 {
AzureIoTClient 20:594780be216d 2678 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_001: [ If `option` is `proxy_data`, `value` shall be used as an `HTTP_PROXY_OPTIONS*`. ]*/
AzureIoTClient 20:594780be216d 2679 HTTP_PROXY_OPTIONS* proxy_options = (HTTP_PROXY_OPTIONS*)value;
AzureIoTClient 20:594780be216d 2680
AzureIoTClient 20:594780be216d 2681 if (transport_data->xioTransport != NULL)
AzureIoTClient 20:594780be216d 2682 {
AzureIoTClient 20:594780be216d 2683 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2684 LogError("Cannot set proxy option once the underlying IO is created");
AzureIoTClient 20:594780be216d 2685 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2686 }
AzureIoTClient 20:594780be216d 2687 else if (proxy_options->host_address == NULL)
AzureIoTClient 20:594780be216d 2688 {
AzureIoTClient 20:594780be216d 2689 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2690 LogError("NULL host_address in proxy options");
AzureIoTClient 20:594780be216d 2691 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2692 }
AzureIoTClient 20:594780be216d 2693 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2694 else if (((proxy_options->username == NULL) || (proxy_options->password == NULL)) &&
AzureIoTClient 20:594780be216d 2695 (proxy_options->username != proxy_options->password))
AzureIoTClient 20:594780be216d 2696 {
AzureIoTClient 20:594780be216d 2697 LogError("Only one of username and password for proxy settings was NULL");
AzureIoTClient 20:594780be216d 2698 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2699 }
AzureIoTClient 20:594780be216d 2700 else
AzureIoTClient 20:594780be216d 2701 {
AzureIoTClient 20:594780be216d 2702 char* copied_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 2703 char* copied_proxy_username = NULL;
AzureIoTClient 20:594780be216d 2704 char* copied_proxy_password = NULL;
AzureIoTClient 20:594780be216d 2705
AzureIoTClient 20:594780be216d 2706 /* 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). ]*/
AzureIoTClient 20:594780be216d 2707 transport_data->http_proxy_port = proxy_options->port;
AzureIoTClient 20:594780be216d 2708 if (mallocAndStrcpy_s(&copied_proxy_hostname, proxy_options->host_address) != 0)
AzureIoTClient 20:594780be216d 2709 {
AzureIoTClient 20:594780be216d 2710 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2711 LogError("Cannot copy HTTP proxy hostname");
AzureIoTClient 20:594780be216d 2712 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2713 }
AzureIoTClient 20:594780be216d 2714 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
AzureIoTClient 20:594780be216d 2715 else if ((proxy_options->username != NULL) && (mallocAndStrcpy_s(&copied_proxy_username, proxy_options->username) != 0))
AzureIoTClient 20:594780be216d 2716 {
AzureIoTClient 20:594780be216d 2717 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2718 free(copied_proxy_hostname);
AzureIoTClient 20:594780be216d 2719 LogError("Cannot copy HTTP proxy username");
AzureIoTClient 20:594780be216d 2720 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2721 }
AzureIoTClient 20:594780be216d 2722 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
AzureIoTClient 20:594780be216d 2723 else if ((proxy_options->password != NULL) && (mallocAndStrcpy_s(&copied_proxy_password, proxy_options->password) != 0))
AzureIoTClient 20:594780be216d 2724 {
AzureIoTClient 20:594780be216d 2725 /* 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`. ]*/
AzureIoTClient 20:594780be216d 2726 if (copied_proxy_username != NULL)
AzureIoTClient 20:594780be216d 2727 {
AzureIoTClient 20:594780be216d 2728 free(copied_proxy_username);
AzureIoTClient 20:594780be216d 2729 }
AzureIoTClient 20:594780be216d 2730 free(copied_proxy_hostname);
AzureIoTClient 20:594780be216d 2731 LogError("Cannot copy HTTP proxy password");
AzureIoTClient 20:594780be216d 2732 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2733 }
AzureIoTClient 20:594780be216d 2734 else
AzureIoTClient 20:594780be216d 2735 {
AzureIoTClient 20:594780be216d 2736 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_009: [ When setting the proxy options succeeds any previously saved proxy options shall be freed. ]*/
AzureIoTClient 20:594780be216d 2737 free_proxy_data(transport_data);
AzureIoTClient 20:594780be216d 2738
AzureIoTClient 20:594780be216d 2739 transport_data->http_proxy_hostname = copied_proxy_hostname;
AzureIoTClient 20:594780be216d 2740 transport_data->http_proxy_username = copied_proxy_username;
AzureIoTClient 20:594780be216d 2741 transport_data->http_proxy_password = copied_proxy_password;
AzureIoTClient 20:594780be216d 2742
AzureIoTClient 20:594780be216d 2743 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_008: [ If setting the `proxy_data` option suceeds, `IoTHubTransport_MQTT_Common_SetOption` shall return `IOTHUB_CLIENT_OK` ]*/
AzureIoTClient 20:594780be216d 2744 result = IOTHUB_CLIENT_OK;
AzureIoTClient 20:594780be216d 2745 }
AzureIoTClient 20:594780be216d 2746 }
AzureIoTClient 20:594780be216d 2747 }
AzureIoTClient 11:31ebaeb51e1e 2748 else
AzureIoTClient 11:31ebaeb51e1e 2749 {
AzureIoTClient 21:167f8fcf6fb1 2750 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2751 if ( ((strcmp(OPTION_X509_CERT, option) == 0) || (strcmp(OPTION_X509_PRIVATE_KEY, option) == 0)) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509) )
AzureIoTClient 21:167f8fcf6fb1 2752 {
AzureIoTClient 21:167f8fcf6fb1 2753 IoTHubClient_Auth_Set_x509_Type(transport_data->authorization_module, true);
AzureIoTClient 21:167f8fcf6fb1 2754 }
AzureIoTClient 21:167f8fcf6fb1 2755
AzureIoTClient 12:658ca6865de2 2756 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_032: [IoTHubTransport_MQTT_Common_SetOption shall pass down the option to xio_setoption if the option parameter is not a known option string for the MQTT transport.] */
AzureIoTClient 11:31ebaeb51e1e 2757 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2758 {
AzureIoTClient 11:31ebaeb51e1e 2759 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2760 {
AzureIoTClient 11:31ebaeb51e1e 2761 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2762 }
AzureIoTClient 11:31ebaeb51e1e 2763 else
AzureIoTClient 11:31ebaeb51e1e 2764 {
AzureIoTClient 12:658ca6865de2 2765 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2766 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2767 }
AzureIoTClient 11:31ebaeb51e1e 2768 }
AzureIoTClient 11:31ebaeb51e1e 2769 else
AzureIoTClient 11:31ebaeb51e1e 2770 {
AzureIoTClient 11:31ebaeb51e1e 2771 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2772 }
AzureIoTClient 11:31ebaeb51e1e 2773 }
AzureIoTClient 11:31ebaeb51e1e 2774 }
AzureIoTClient 11:31ebaeb51e1e 2775 return result;
AzureIoTClient 11:31ebaeb51e1e 2776 }
AzureIoTClient 11:31ebaeb51e1e 2777
AzureIoTClient 11:31ebaeb51e1e 2778 IOTHUB_DEVICE_HANDLE IoTHubTransport_MQTT_Common_Register(TRANSPORT_LL_HANDLE handle, const IOTHUB_DEVICE_CONFIG* device, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2779 {
AzureIoTClient 11:31ebaeb51e1e 2780 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2781 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2782
AzureIoTClient 12:658ca6865de2 2783 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2784 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2785 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2786 {
AzureIoTClient 12:658ca6865de2 2787 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2788 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2789 }
AzureIoTClient 11:31ebaeb51e1e 2790 else
AzureIoTClient 11:31ebaeb51e1e 2791 {
AzureIoTClient 11:31ebaeb51e1e 2792 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2793
AzureIoTClient 12:658ca6865de2 2794 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceId, or both deviceKey and deviceSasToken are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2795 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2796 {
AzureIoTClient 12:658ca6865de2 2797 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2798 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2799 }
AzureIoTClient 12:658ca6865de2 2800 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2801 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2802 {
AzureIoTClient 12:658ca6865de2 2803 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2804 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2805 }
AzureIoTClient 11:31ebaeb51e1e 2806 else
AzureIoTClient 11:31ebaeb51e1e 2807 {
AzureIoTClient 12:658ca6865de2 2808 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_003: [ IoTHubTransport_MQTT_Common_Register shall return NULL if deviceId or deviceKey do not match the deviceId and deviceKey passed in during IoTHubTransport_MQTT_Common_Create.]
AzureIoTClient 11:31ebaeb51e1e 2809 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2810 {
AzureIoTClient 12:658ca6865de2 2811 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2812 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2813 }
AzureIoTClient 21:167f8fcf6fb1 2814 else if (IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module) == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY &&
AzureIoTClient 21:167f8fcf6fb1 2815 (strcmp(IoTHubClient_Auth_Get_DeviceKey(transport_data->authorization_module), device->deviceKey) != 0))
AzureIoTClient 11:31ebaeb51e1e 2816 {
AzureIoTClient 12:658ca6865de2 2817 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2818 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2819 }
AzureIoTClient 11:31ebaeb51e1e 2820 else
AzureIoTClient 11:31ebaeb51e1e 2821 {
AzureIoTClient 11:31ebaeb51e1e 2822 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2823 {
AzureIoTClient 11:31ebaeb51e1e 2824 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2825 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2826 }
AzureIoTClient 11:31ebaeb51e1e 2827 else
AzureIoTClient 11:31ebaeb51e1e 2828 {
AzureIoTClient 11:31ebaeb51e1e 2829 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2830 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_004: [ IoTHubTransport_MQTT_Common_Register shall return the TRANSPORT_LL_HANDLE as the IOTHUB_DEVICE_HANDLE. ]
AzureIoTClient 11:31ebaeb51e1e 2831 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2832 }
AzureIoTClient 11:31ebaeb51e1e 2833 }
AzureIoTClient 11:31ebaeb51e1e 2834 }
AzureIoTClient 11:31ebaeb51e1e 2835 }
AzureIoTClient 11:31ebaeb51e1e 2836
AzureIoTClient 11:31ebaeb51e1e 2837 return result;
AzureIoTClient 11:31ebaeb51e1e 2838 }
AzureIoTClient 11:31ebaeb51e1e 2839
AzureIoTClient 11:31ebaeb51e1e 2840 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2841 {
AzureIoTClient 14:4dc2b011be33 2842 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
AzureIoTClient 11:31ebaeb51e1e 2843 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2844 {
AzureIoTClient 11:31ebaeb51e1e 2845 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2846
AzureIoTClient 11:31ebaeb51e1e 2847 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2848 }
AzureIoTClient 11:31ebaeb51e1e 2849 }
AzureIoTClient 11:31ebaeb51e1e 2850
AzureIoTClient 11:31ebaeb51e1e 2851 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2852 {
AzureIoTClient 11:31ebaeb51e1e 2853 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2854 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2855 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2856 {
AzureIoTClient 11:31ebaeb51e1e 2857 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2858 }
AzureIoTClient 22:07fec4d325b6 2859 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransport_MQTT_Common_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
AzureIoTClient 22:07fec4d325b6 2860 else if ((result = STRING_clone(((MQTTTRANSPORT_HANDLE_DATA*)(handle))->hostAddress)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 2861 {
AzureIoTClient 22:07fec4d325b6 2862 LogError("Cannot provide the target host name (STRING_clone failed).");
AzureIoTClient 11:31ebaeb51e1e 2863 }
AzureIoTClient 22:07fec4d325b6 2864
AzureIoTClient 11:31ebaeb51e1e 2865 return result;
AzureIoTClient 11:31ebaeb51e1e 2866 }
AzureIoTClient 19:f87dfe76bc70 2867
AzureIoTClient 19:f87dfe76bc70 2868 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SendMessageDisposition(MESSAGE_CALLBACK_INFO* message_data, IOTHUBMESSAGE_DISPOSITION_RESULT disposition)
AzureIoTClient 19:f87dfe76bc70 2869 {
AzureIoTClient 19:f87dfe76bc70 2870 (void)disposition;
AzureIoTClient 19:f87dfe76bc70 2871
AzureIoTClient 19:f87dfe76bc70 2872 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 19:f87dfe76bc70 2873 if (message_data)
AzureIoTClient 19:f87dfe76bc70 2874 {
AzureIoTClient 19:f87dfe76bc70 2875 if (message_data->messageHandle)
AzureIoTClient 19:f87dfe76bc70 2876 {
AzureIoTClient 19:f87dfe76bc70 2877 IoTHubMessage_Destroy(message_data->messageHandle);
AzureIoTClient 19:f87dfe76bc70 2878 result = IOTHUB_CLIENT_OK;
AzureIoTClient 19:f87dfe76bc70 2879 }
AzureIoTClient 19:f87dfe76bc70 2880 else
AzureIoTClient 19:f87dfe76bc70 2881 {
AzureIoTClient 19:f87dfe76bc70 2882 /*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. ]*/
AzureIoTClient 19:f87dfe76bc70 2883 LogError("message handle is NULL");
AzureIoTClient 19:f87dfe76bc70 2884 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2885 }
AzureIoTClient 19:f87dfe76bc70 2886 free(message_data);
AzureIoTClient 19:f87dfe76bc70 2887 }
AzureIoTClient 19:f87dfe76bc70 2888 else
AzureIoTClient 19:f87dfe76bc70 2889 {
AzureIoTClient 19:f87dfe76bc70 2890 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_10_001: [If messageData is NULL, IoTHubTransport_MQTT_Common_SendMessageDisposition shall fail and return IOTHUB_CLIENT_ERROR. ]*/
AzureIoTClient 19:f87dfe76bc70 2891 LogError("message_data is NULL");
AzureIoTClient 19:f87dfe76bc70 2892 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2893 }
AzureIoTClient 19:f87dfe76bc70 2894 return result;
AzureIoTClient 19:f87dfe76bc70 2895 }
AzureIoTClient 19:f87dfe76bc70 2896