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@17:774695cb8554, 2017-01-28 (annotated)

Committer:
AzureIoTClient
Date:
Sat Jan 28 09:34:14 2017 -0800
Revision:
17:774695cb8554
Parent:
16:14640ee83e99
Child:
18:ec8e5e97c6a4
1.1.6

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 11:31ebaeb51e1e 6 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 11:31ebaeb51e1e 7
AzureIoTClient 11:31ebaeb51e1e 8 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 11:31ebaeb51e1e 9 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 11:31ebaeb51e1e 10 #include "azure_c_shared_utility/doublylinkedlist.h"
AzureIoTClient 11:31ebaeb51e1e 11 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 11:31ebaeb51e1e 12
AzureIoTClient 11:31ebaeb51e1e 13 #include "iothub_client_ll.h"
AzureIoTClient 11:31ebaeb51e1e 14 #include "iothub_client_options.h"
AzureIoTClient 11:31ebaeb51e1e 15 #include "iothub_client_private.h"
AzureIoTClient 11:31ebaeb51e1e 16 #include "azure_umqtt_c/mqtt_client.h"
AzureIoTClient 11:31ebaeb51e1e 17 #include "azure_c_shared_utility/sastoken.h"
AzureIoTClient 11:31ebaeb51e1e 18 #include "azure_c_shared_utility/tickcounter.h"
AzureIoTClient 11:31ebaeb51e1e 19
AzureIoTClient 11:31ebaeb51e1e 20 #include "azure_c_shared_utility/tlsio.h"
AzureIoTClient 11:31ebaeb51e1e 21 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 11:31ebaeb51e1e 22
AzureIoTClient 11:31ebaeb51e1e 23 #include "azure_c_shared_utility/string_tokenizer.h"
AzureIoTClient 11:31ebaeb51e1e 24 #include "iothub_client_version.h"
AzureIoTClient 11:31ebaeb51e1e 25
AzureIoTClient 11:31ebaeb51e1e 26 #include "iothubtransport_mqtt_common.h"
AzureIoTClient 11:31ebaeb51e1e 27
AzureIoTClient 11:31ebaeb51e1e 28 #include <stdarg.h>
AzureIoTClient 11:31ebaeb51e1e 29 #include <stdio.h>
AzureIoTClient 11:31ebaeb51e1e 30
AzureIoTClient 11:31ebaeb51e1e 31 #include <limits.h>
AzureIoTClient 12:658ca6865de2 32 #include <inttypes.h>
AzureIoTClient 11:31ebaeb51e1e 33
AzureIoTClient 11:31ebaeb51e1e 34 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 11:31ebaeb51e1e 35 #define SAS_REFRESH_MULTIPLIER .8
AzureIoTClient 11:31ebaeb51e1e 36 #define EPOCH_TIME_T_VALUE 0
AzureIoTClient 11:31ebaeb51e1e 37 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
AzureIoTClient 11:31ebaeb51e1e 38 #define BUILD_CONFIG_USERNAME 24
AzureIoTClient 11:31ebaeb51e1e 39 #define SAS_TOKEN_DEFAULT_LEN 10
AzureIoTClient 11:31ebaeb51e1e 40 #define RESEND_TIMEOUT_VALUE_MIN 1*60
AzureIoTClient 11:31ebaeb51e1e 41 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 11:31ebaeb51e1e 42 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 11:31ebaeb51e1e 43 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 12:658ca6865de2 44 #define STATUS_CODE_FAILURE_VALUE 500
AzureIoTClient 12:658ca6865de2 45 #define STATUS_CODE_TIMEOUT_VALUE 408
AzureIoTClient 17:774695cb8554 46 #define ERROR_TIME_FOR_RETRY_SECS 5 // We won't retry more than once every 5 seconds
AzureIoTClient 12:658ca6865de2 47
AzureIoTClient 12:658ca6865de2 48 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 49 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 50
AzureIoTClient 12:658ca6865de2 51 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 52 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 53
AzureIoTClient 11:31ebaeb51e1e 54 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 55 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 56
AzureIoTClient 12:658ca6865de2 57 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 58 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 59
AzureIoTClient 12:658ca6865de2 60 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 61
AzureIoTClient 11:31ebaeb51e1e 62 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 63 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 64 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 14:4dc2b011be33 65 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
AzureIoTClient 12:658ca6865de2 66
AzureIoTClient 12:658ca6865de2 67 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 68
AzureIoTClient 11:31ebaeb51e1e 69 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 70 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 71 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 72 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 73 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 74 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 75 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 76
AzureIoTClient 17:774695cb8554 77 DEFINE_ENUM_STRINGS(MQTT_CLIENT_EVENT_ERROR, MQTT_CLIENT_EVENT_ERROR_VALUES)
AzureIoTClient 17:774695cb8554 78
AzureIoTClient 11:31ebaeb51e1e 79 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 80 {
AzureIoTClient 11:31ebaeb51e1e 81 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 82 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 83 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 84
AzureIoTClient 11:31ebaeb51e1e 85 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 86 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 87 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 88 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 89 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 90 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 91 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 92 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 93 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 94 };
AzureIoTClient 11:31ebaeb51e1e 95
AzureIoTClient 12:658ca6865de2 96 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 97 {
AzureIoTClient 12:658ca6865de2 98 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 99 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 100 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 101
AzureIoTClient 11:31ebaeb51e1e 102 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 103 {
AzureIoTClient 11:31ebaeb51e1e 104 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 105 X509,
AzureIoTClient 11:31ebaeb51e1e 106 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 107 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 108 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 109
AzureIoTClient 12:658ca6865de2 110 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 111
AzureIoTClient 12:658ca6865de2 112 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 113 {
AzureIoTClient 17:774695cb8554 114 IOTHUB_CLIENT_RETRY_POLICY retryPolicy; // Type of policy we're using
AzureIoTClient 17:774695cb8554 115 size_t retryTimeoutLimitInSeconds; // If we don't connect in this many seconds, give up even trying.
AzureIoTClient 17:774695cb8554 116 RETRY_POLICY fnRetryPolicy; // Pointer to the policy function
AzureIoTClient 17:774695cb8554 117 time_t start; // When did we start retrying?
AzureIoTClient 17:774695cb8554 118 time_t lastConnect; // When did we last try to connect?
AzureIoTClient 17:774695cb8554 119 bool retryStarted; // true if the retry timer is set and we're trying to retry
AzureIoTClient 17:774695cb8554 120 bool retryExpired; // true if we haven't connected in retryTimeoutLimitInSeconds seconds
AzureIoTClient 17:774695cb8554 121 bool firstAttempt; // true on init so we can connect the first time without waiting for any timeouts.
AzureIoTClient 17:774695cb8554 122 size_t retrycount; // How many times have we tried connecting?
AzureIoTClient 17:774695cb8554 123 size_t delayFromLastConnectToRetry; // last time delta betweewn retry attempts.
AzureIoTClient 12:658ca6865de2 124 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 125
AzureIoTClient 11:31ebaeb51e1e 126 typedef struct MQTT_TRANSPORT_CREDENTIALS_TAG
AzureIoTClient 11:31ebaeb51e1e 127 {
AzureIoTClient 11:31ebaeb51e1e 128 MQTT_TRANSPORT_CREDENTIAL_TYPE credential_type;
AzureIoTClient 11:31ebaeb51e1e 129 union
AzureIoTClient 11:31ebaeb51e1e 130 {
AzureIoTClient 11:31ebaeb51e1e 131 // Key associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 132 STRING_HANDLE deviceKey;
AzureIoTClient 11:31ebaeb51e1e 133
AzureIoTClient 11:31ebaeb51e1e 134 // SAS associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 135 STRING_HANDLE deviceSasToken;
AzureIoTClient 11:31ebaeb51e1e 136
AzureIoTClient 11:31ebaeb51e1e 137 } CREDENTIAL_VALUE;
AzureIoTClient 11:31ebaeb51e1e 138 } MQTT_TRANSPORT_CREDENTIALS;
AzureIoTClient 11:31ebaeb51e1e 139
AzureIoTClient 11:31ebaeb51e1e 140 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 141 {
AzureIoTClient 11:31ebaeb51e1e 142 // Topic control
AzureIoTClient 11:31ebaeb51e1e 143 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 144 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 145 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 146 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 147
AzureIoTClient 12:658ca6865de2 148 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 149
AzureIoTClient 11:31ebaeb51e1e 150 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 151
AzureIoTClient 11:31ebaeb51e1e 152 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 153 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 154 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 155 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 156 int portNum;
AzureIoTClient 11:31ebaeb51e1e 157
AzureIoTClient 11:31ebaeb51e1e 158 // Authentication
AzureIoTClient 11:31ebaeb51e1e 159 MQTT_TRANSPORT_CREDENTIALS transport_creds;
AzureIoTClient 11:31ebaeb51e1e 160
AzureIoTClient 11:31ebaeb51e1e 161 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 162
AzureIoTClient 11:31ebaeb51e1e 163 // 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 164 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 165 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 166 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 167 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 168 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 169 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 170
AzureIoTClient 11:31ebaeb51e1e 171 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 172 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 173
AzureIoTClient 11:31ebaeb51e1e 174 // Protocol
AzureIoTClient 11:31ebaeb51e1e 175 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 176 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 177
AzureIoTClient 11:31ebaeb51e1e 178 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 179 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 180
AzureIoTClient 11:31ebaeb51e1e 181 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 182 bool isRegistered;
AzureIoTClient 11:31ebaeb51e1e 183 bool isConnected;
AzureIoTClient 11:31ebaeb51e1e 184 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 185 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 186 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 187 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 188 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 189 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 190 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 191 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 192 bool raw_trace;
Azure.IoT.Build 13:606465879c57 193 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 194
AzureIoTClient 11:31ebaeb51e1e 195 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 196 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 197 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 198
AzureIoTClient 11:31ebaeb51e1e 199 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 200 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 201
AzureIoTClient 11:31ebaeb51e1e 202 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 203 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 204
AzureIoTClient 12:658ca6865de2 205 //Retry Logic
AzureIoTClient 12:658ca6865de2 206 RETRY_LOGIC* retryLogic;
AzureIoTClient 11:31ebaeb51e1e 207 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
AzureIoTClient 11:31ebaeb51e1e 208
AzureIoTClient 12:658ca6865de2 209 typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
AzureIoTClient 12:658ca6865de2 210 {
Azure.IoT.Build 13:606465879c57 211 tickcounter_ms_t msgPublishTime;
AzureIoTClient 12:658ca6865de2 212 size_t retryCount;
AzureIoTClient 12:658ca6865de2 213 IOTHUB_IDENTITY_TYPE iothub_type;
AzureIoTClient 12:658ca6865de2 214 uint16_t packet_id;
AzureIoTClient 12:658ca6865de2 215 uint32_t iothub_msg_id;
AzureIoTClient 12:658ca6865de2 216 IOTHUB_DEVICE_TWIN* device_twin_data;
AzureIoTClient 12:658ca6865de2 217 DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
AzureIoTClient 12:658ca6865de2 218 DLIST_ENTRY entry;
AzureIoTClient 12:658ca6865de2 219 } MQTT_DEVICE_TWIN_ITEM;
AzureIoTClient 12:658ca6865de2 220
AzureIoTClient 11:31ebaeb51e1e 221 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
AzureIoTClient 11:31ebaeb51e1e 222 {
Azure.IoT.Build 13:606465879c57 223 tickcounter_ms_t msgPublishTime;
AzureIoTClient 11:31ebaeb51e1e 224 size_t retryCount;
AzureIoTClient 11:31ebaeb51e1e 225 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 11:31ebaeb51e1e 226 void* context;
AzureIoTClient 11:31ebaeb51e1e 227 uint16_t packet_id;
AzureIoTClient 11:31ebaeb51e1e 228 DLIST_ENTRY entry;
AzureIoTClient 11:31ebaeb51e1e 229 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
AzureIoTClient 11:31ebaeb51e1e 230
AzureIoTClient 14:4dc2b011be33 231 typedef struct DEVICE_METHOD_INFO_TAG
AzureIoTClient 14:4dc2b011be33 232 {
AzureIoTClient 14:4dc2b011be33 233 STRING_HANDLE request_id;
AzureIoTClient 14:4dc2b011be33 234 } DEVICE_METHOD_INFO;
AzureIoTClient 14:4dc2b011be33 235
AzureIoTClient 12:658ca6865de2 236 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 237 {
AzureIoTClient 12:658ca6865de2 238 int result;
AzureIoTClient 12:658ca6865de2 239
AzureIoTClient 12:658ca6865de2 240 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 241 {
AzureIoTClient 12:658ca6865de2 242 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 243 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 244 *permit = true;
AzureIoTClient 12:658ca6865de2 245
AzureIoTClient 12:658ca6865de2 246 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 247
AzureIoTClient 12:658ca6865de2 248 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 249 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 250 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 251 */
AzureIoTClient 12:658ca6865de2 252
AzureIoTClient 12:658ca6865de2 253 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 254 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 255 {
AzureIoTClient 12:658ca6865de2 256 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 257 }
AzureIoTClient 12:658ca6865de2 258 else
AzureIoTClient 12:658ca6865de2 259 {
AzureIoTClient 12:658ca6865de2 260 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 261 }
AzureIoTClient 12:658ca6865de2 262
AzureIoTClient 12:658ca6865de2 263 result = 0;
AzureIoTClient 12:658ca6865de2 264 }
AzureIoTClient 12:658ca6865de2 265 else
AzureIoTClient 12:658ca6865de2 266 {
AzureIoTClient 12:658ca6865de2 267 result = __LINE__;
AzureIoTClient 12:658ca6865de2 268 }
AzureIoTClient 12:658ca6865de2 269 return result;
AzureIoTClient 12:658ca6865de2 270 }
AzureIoTClient 12:658ca6865de2 271
AzureIoTClient 12:658ca6865de2 272 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 273 {
AzureIoTClient 12:658ca6865de2 274 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 275 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 276 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 277 {
AzureIoTClient 12:658ca6865de2 278 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 279 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 280 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 281 {
AzureIoTClient 12:658ca6865de2 282 case IOTHUB_CLIENT_RETRY_NONE:
AzureIoTClient 12:658ca6865de2 283 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 284 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 285 break;
AzureIoTClient 12:658ca6865de2 286 case IOTHUB_CLIENT_RETRY_IMMEDIATE:
AzureIoTClient 12:658ca6865de2 287 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 288 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 289 break;
AzureIoTClient 12:658ca6865de2 290 case IOTHUB_CLIENT_RETRY_INTERVAL:
AzureIoTClient 12:658ca6865de2 291 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 292 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 293 break;
AzureIoTClient 12:658ca6865de2 294 case IOTHUB_CLIENT_RETRY_LINEAR_BACKOFF:
AzureIoTClient 12:658ca6865de2 295 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 296 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 297 break;
AzureIoTClient 12:658ca6865de2 298 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF:
AzureIoTClient 12:658ca6865de2 299 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 300 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 301 break;
AzureIoTClient 12:658ca6865de2 302 case IOTHUB_CLIENT_RETRY_RANDOM:
AzureIoTClient 12:658ca6865de2 303 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 304 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 305 break;
AzureIoTClient 12:658ca6865de2 306 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 307 default:
AzureIoTClient 12:658ca6865de2 308 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 309 break;
AzureIoTClient 12:658ca6865de2 310 }
AzureIoTClient 12:658ca6865de2 311 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 312 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 313 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 314 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 315 retryLogic->retryExpired = false;
AzureIoTClient 17:774695cb8554 316 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 317 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 318 }
AzureIoTClient 12:658ca6865de2 319 else
AzureIoTClient 12:658ca6865de2 320 {
AzureIoTClient 12:658ca6865de2 321 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 322 }
AzureIoTClient 12:658ca6865de2 323 return retryLogic;
AzureIoTClient 12:658ca6865de2 324 }
AzureIoTClient 12:658ca6865de2 325
AzureIoTClient 12:658ca6865de2 326 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 327 {
AzureIoTClient 12:658ca6865de2 328 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 329 {
AzureIoTClient 12:658ca6865de2 330 free(retryLogic);
AzureIoTClient 12:658ca6865de2 331 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 332 }
AzureIoTClient 12:658ca6865de2 333 }
AzureIoTClient 12:658ca6865de2 334
AzureIoTClient 12:658ca6865de2 335 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 336 static void StartRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 337 {
AzureIoTClient 12:658ca6865de2 338 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 339 {
AzureIoTClient 12:658ca6865de2 340 if (retryLogic->retryStarted == false)
AzureIoTClient 12:658ca6865de2 341 {
AzureIoTClient 12:658ca6865de2 342 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 343 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 344 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 345 }
AzureIoTClient 12:658ca6865de2 346
AzureIoTClient 17:774695cb8554 347 retryLogic->firstAttempt = false
AzureIoTClient 17:774695cb8554 348 ;
AzureIoTClient 12:658ca6865de2 349 }
AzureIoTClient 12:658ca6865de2 350 else
AzureIoTClient 12:658ca6865de2 351 {
AzureIoTClient 12:658ca6865de2 352 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 353 }
AzureIoTClient 12:658ca6865de2 354 }
AzureIoTClient 12:658ca6865de2 355
AzureIoTClient 12:658ca6865de2 356 // Called when connected
AzureIoTClient 12:658ca6865de2 357 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 358 {
AzureIoTClient 12:658ca6865de2 359 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 360 {
AzureIoTClient 12:658ca6865de2 361 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 362 {
AzureIoTClient 12:658ca6865de2 363 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 364 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 365 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 366 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 367 }
AzureIoTClient 12:658ca6865de2 368 else
AzureIoTClient 12:658ca6865de2 369 {
AzureIoTClient 12:658ca6865de2 370 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 371 }
AzureIoTClient 12:658ca6865de2 372 }
AzureIoTClient 12:658ca6865de2 373 else
AzureIoTClient 12:658ca6865de2 374 {
AzureIoTClient 12:658ca6865de2 375 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 376 }
AzureIoTClient 12:658ca6865de2 377 }
AzureIoTClient 12:658ca6865de2 378
AzureIoTClient 12:658ca6865de2 379 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 380 {
AzureIoTClient 12:658ca6865de2 381 int result;
AzureIoTClient 12:658ca6865de2 382 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 383 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 384 {
AzureIoTClient 12:658ca6865de2 385 /* 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 386 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 387 result = __LINE__;
AzureIoTClient 12:658ca6865de2 388 }
AzureIoTClient 12:658ca6865de2 389 else
AzureIoTClient 12:658ca6865de2 390 {
AzureIoTClient 12:658ca6865de2 391 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 392 {
AzureIoTClient 12:658ca6865de2 393 /*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 394 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 395 }
AzureIoTClient 12:658ca6865de2 396 else
AzureIoTClient 12:658ca6865de2 397 {
AzureIoTClient 12:658ca6865de2 398 /*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 399 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 400 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 401 }
AzureIoTClient 12:658ca6865de2 402
AzureIoTClient 12:658ca6865de2 403 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 404 {
AzureIoTClient 12:658ca6865de2 405 /*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 406 result = 0;
AzureIoTClient 12:658ca6865de2 407 }
AzureIoTClient 12:658ca6865de2 408 else
AzureIoTClient 12:658ca6865de2 409 {
AzureIoTClient 12:658ca6865de2 410 /*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 411 LogError("Retry Logic is not created");
AzureIoTClient 12:658ca6865de2 412 result = __LINE__;
AzureIoTClient 12:658ca6865de2 413 }
AzureIoTClient 12:658ca6865de2 414 }
AzureIoTClient 12:658ca6865de2 415 return result;
AzureIoTClient 12:658ca6865de2 416 }
AzureIoTClient 12:658ca6865de2 417
AzureIoTClient 12:658ca6865de2 418 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 419 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 420 {
AzureIoTClient 12:658ca6865de2 421 bool result;
AzureIoTClient 12:658ca6865de2 422 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 423
AzureIoTClient 12:658ca6865de2 424 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 425 {
AzureIoTClient 12:658ca6865de2 426 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 427 result = true;
AzureIoTClient 12:658ca6865de2 428 }
AzureIoTClient 17:774695cb8554 429 else if (now < 0 || retryLogic->start < 0)
AzureIoTClient 12:658ca6865de2 430 {
AzureIoTClient 12:658ca6865de2 431 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 432 result = true;
AzureIoTClient 12:658ca6865de2 433 }
AzureIoTClient 12:658ca6865de2 434 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 435 {
AzureIoTClient 17:774695cb8554 436 // We've given up trying to retry. Don't do anything.
AzureIoTClient 12:658ca6865de2 437 result = false;
AzureIoTClient 12:658ca6865de2 438 }
AzureIoTClient 17:774695cb8554 439 else if (retryLogic->firstAttempt)
AzureIoTClient 12:658ca6865de2 440 {
AzureIoTClient 17:774695cb8554 441 // This is the first time ever running through this code. We need to try connecting no matter what.
AzureIoTClient 12:658ca6865de2 442 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 443 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 444 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 445 result = true;
AzureIoTClient 12:658ca6865de2 446 }
AzureIoTClient 12:658ca6865de2 447 else
AzureIoTClient 12:658ca6865de2 448 {
AzureIoTClient 17:774695cb8554 449 // Are we trying to retry?
AzureIoTClient 12:658ca6865de2 450 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 451 {
AzureIoTClient 17:774695cb8554 452 // How long since we last tried to connect? Store this in difftime.
AzureIoTClient 12:658ca6865de2 453 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 17:774695cb8554 454
AzureIoTClient 17:774695cb8554 455 // Has it been less than 5 seconds since we tried last? If so, we have to
AzureIoTClient 17:774695cb8554 456 // be careful so we don't hit the server too quickly.
AzureIoTClient 12:658ca6865de2 457 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 458 {
AzureIoTClient 17:774695cb8554 459 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 17:774695cb8554 460 result = false;
AzureIoTClient 12:658ca6865de2 461 }
AzureIoTClient 12:658ca6865de2 462 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 463 {
AzureIoTClient 17:774695cb8554 464 // delayFromLastConnectionToRetry is either 0 (the first time around)
AzureIoTClient 17:774695cb8554 465 // or it's the backoff delta from the last time through the loop.
AzureIoTClient 17:774695cb8554 466 // If we're less than that, don't even bother trying. It's
AzureIoTClient 12:658ca6865de2 467 // Too early to retry
AzureIoTClient 12:658ca6865de2 468 result = false;
AzureIoTClient 12:658ca6865de2 469 }
AzureIoTClient 12:658ca6865de2 470 else
AzureIoTClient 12:658ca6865de2 471 {
AzureIoTClient 12:658ca6865de2 472 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 17:774695cb8554 473 // In other words, it migth be time to retry, so we should validate with the retry policy function.
AzureIoTClient 12:658ca6865de2 474 bool permit = false;
AzureIoTClient 12:658ca6865de2 475 size_t delay;
AzureIoTClient 12:658ca6865de2 476
AzureIoTClient 12:658ca6865de2 477 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 478 {
AzureIoTClient 17:774695cb8554 479 // Does the policy function want us to retry (permit == true), or are we still allowed to retry?
AzureIoTClient 17:774695cb8554 480 // (in other words, are we within retryTimeoutLimitInSeconds seconds since starting to retry?)
AzureIoTClient 17:774695cb8554 481 // If so, see if we _really_ want to retry.
AzureIoTClient 12:658ca6865de2 482 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 483 {
AzureIoTClient 12:658ca6865de2 484 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 485
AzureIoTClient 12:658ca6865de2 486 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 487
AzureIoTClient 17:774695cb8554 488 // If the retry policy is telling us to connect right away ( <= ERROR_TIME_FOR_RETRY_SECS),
AzureIoTClient 17:774695cb8554 489 // or if enough time has elapsed, then we retry.
AzureIoTClient 17:774695cb8554 490 if ((retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS) ||
AzureIoTClient 17:774695cb8554 491 (diffTime >= retryLogic->delayFromLastConnectToRetry))
AzureIoTClient 12:658ca6865de2 492 {
AzureIoTClient 12:658ca6865de2 493 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 494 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 495 result = true;
AzureIoTClient 12:658ca6865de2 496 }
AzureIoTClient 12:658ca6865de2 497 else
AzureIoTClient 12:658ca6865de2 498 {
AzureIoTClient 17:774695cb8554 499 // To soon to retry according to policy.
AzureIoTClient 12:658ca6865de2 500 result = false;
AzureIoTClient 12:658ca6865de2 501 }
AzureIoTClient 12:658ca6865de2 502 }
AzureIoTClient 12:658ca6865de2 503 else
AzureIoTClient 12:658ca6865de2 504 {
AzureIoTClient 17:774695cb8554 505 // Retry expired. Stop trying.
AzureIoTClient 12:658ca6865de2 506 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 507 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 508 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 509 result = false;
AzureIoTClient 12:658ca6865de2 510 }
AzureIoTClient 12:658ca6865de2 511 }
AzureIoTClient 12:658ca6865de2 512 else
AzureIoTClient 12:658ca6865de2 513 {
AzureIoTClient 17:774695cb8554 514 // We don't have a retry policy. Sorry, can't even guess. Don't bother even trying to retry.
AzureIoTClient 12:658ca6865de2 515 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 516 result = false;
AzureIoTClient 12:658ca6865de2 517 }
AzureIoTClient 12:658ca6865de2 518 }
AzureIoTClient 12:658ca6865de2 519 }
AzureIoTClient 12:658ca6865de2 520 else
AzureIoTClient 12:658ca6865de2 521 {
AzureIoTClient 17:774695cb8554 522 // Since this function is only called when the connection is
AzureIoTClient 17:774695cb8554 523 // already broken, we can start doing the rety logic. We'll do the
AzureIoTClient 17:774695cb8554 524 // actual interval checking next time around this loop.
AzureIoTClient 12:658ca6865de2 525 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 526 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 527 result = false;
AzureIoTClient 12:658ca6865de2 528 }
AzureIoTClient 12:658ca6865de2 529 }
AzureIoTClient 12:658ca6865de2 530 return result;
AzureIoTClient 12:658ca6865de2 531 }
AzureIoTClient 12:658ca6865de2 532
AzureIoTClient 12:658ca6865de2 533
AzureIoTClient 11:31ebaeb51e1e 534 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 535 {
AzureIoTClient 11:31ebaeb51e1e 536 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 537 {
AzureIoTClient 11:31ebaeb51e1e 538 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 539 }
AzureIoTClient 11:31ebaeb51e1e 540 else
AzureIoTClient 11:31ebaeb51e1e 541 {
AzureIoTClient 11:31ebaeb51e1e 542 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 543 }
AzureIoTClient 11:31ebaeb51e1e 544 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 545 }
AzureIoTClient 11:31ebaeb51e1e 546
AzureIoTClient 11:31ebaeb51e1e 547 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 548 {
AzureIoTClient 11:31ebaeb51e1e 549 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 550 {
AzureIoTClient 11:31ebaeb51e1e 551 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 552 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 553 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 554 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 555 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 556 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 557 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 558 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 559 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 560 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 561 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 562 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 563 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 564 default:
AzureIoTClient 11:31ebaeb51e1e 565 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 566 }
AzureIoTClient 11:31ebaeb51e1e 567 }
AzureIoTClient 11:31ebaeb51e1e 568
AzureIoTClient 14:4dc2b011be33 569 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
AzureIoTClient 12:658ca6865de2 570 {
AzureIoTClient 12:658ca6865de2 571 int result;
AzureIoTClient 12:658ca6865de2 572 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 573 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 574 {
AzureIoTClient 12:658ca6865de2 575 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 576 result = __LINE__;
AzureIoTClient 12:658ca6865de2 577 }
AzureIoTClient 12:658ca6865de2 578 else
AzureIoTClient 12:658ca6865de2 579 {
AzureIoTClient 12:658ca6865de2 580 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 581 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 582 {
AzureIoTClient 12:658ca6865de2 583 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 584 result = __LINE__;
AzureIoTClient 12:658ca6865de2 585 }
AzureIoTClient 12:658ca6865de2 586 else
AzureIoTClient 12:658ca6865de2 587 {
AzureIoTClient 12:658ca6865de2 588 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 589 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 12:658ca6865de2 590 result = __LINE__;
AzureIoTClient 12:658ca6865de2 591 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 592 {
AzureIoTClient 12:658ca6865de2 593 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 594 {
AzureIoTClient 12:658ca6865de2 595 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 596 {
AzureIoTClient 14:4dc2b011be33 597 LogError("Failed STRING_concat_with_STRING.");
AzureIoTClient 12:658ca6865de2 598 result = __LINE__;
AzureIoTClient 12:658ca6865de2 599 break;
AzureIoTClient 12:658ca6865de2 600 }
AzureIoTClient 12:658ca6865de2 601 }
AzureIoTClient 12:658ca6865de2 602 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 603 {
AzureIoTClient 12:658ca6865de2 604 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 605 {
AzureIoTClient 12:658ca6865de2 606 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 607 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 608 {
AzureIoTClient 14:4dc2b011be33 609 if (STRING_concat(request_id, request_id_value+request_id_length) != 0)
AzureIoTClient 14:4dc2b011be33 610 {
AzureIoTClient 14:4dc2b011be33 611 LogError("Failed STRING_concat failed.");
AzureIoTClient 14:4dc2b011be33 612 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 613 }
AzureIoTClient 14:4dc2b011be33 614 else
AzureIoTClient 14:4dc2b011be33 615 {
AzureIoTClient 14:4dc2b011be33 616 result = 0;
AzureIoTClient 14:4dc2b011be33 617 }
AzureIoTClient 12:658ca6865de2 618 break;
AzureIoTClient 12:658ca6865de2 619 }
AzureIoTClient 12:658ca6865de2 620 }
AzureIoTClient 12:658ca6865de2 621 }
AzureIoTClient 12:658ca6865de2 622 token_index++;
AzureIoTClient 12:658ca6865de2 623 }
AzureIoTClient 12:658ca6865de2 624 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 625 }
AzureIoTClient 12:658ca6865de2 626 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 627 }
AzureIoTClient 12:658ca6865de2 628 return result;
AzureIoTClient 12:658ca6865de2 629 }
AzureIoTClient 12:658ca6865de2 630
AzureIoTClient 12:658ca6865de2 631 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 632 {
AzureIoTClient 12:658ca6865de2 633 int result;
AzureIoTClient 12:658ca6865de2 634 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 635 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 636 {
AzureIoTClient 12:658ca6865de2 637 LogError("Failed creating token from device twin topic.");
AzureIoTClient 12:658ca6865de2 638 result = __LINE__;
AzureIoTClient 12:658ca6865de2 639 *status_code = 0;
AzureIoTClient 12:658ca6865de2 640 *request_id = 0;
AzureIoTClient 12:658ca6865de2 641 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 642 }
AzureIoTClient 12:658ca6865de2 643 else
AzureIoTClient 12:658ca6865de2 644 {
AzureIoTClient 12:658ca6865de2 645 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 646 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 647 {
AzureIoTClient 12:658ca6865de2 648 LogError("Failed allocating new string .");
AzureIoTClient 12:658ca6865de2 649 result = __LINE__;
AzureIoTClient 12:658ca6865de2 650 *status_code = 0;
AzureIoTClient 12:658ca6865de2 651 *request_id = 0;
AzureIoTClient 12:658ca6865de2 652 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 653 }
AzureIoTClient 12:658ca6865de2 654 else
AzureIoTClient 12:658ca6865de2 655 {
AzureIoTClient 12:658ca6865de2 656 result = __LINE__;
AzureIoTClient 12:658ca6865de2 657 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 658 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 659 {
AzureIoTClient 12:658ca6865de2 660 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 661 {
AzureIoTClient 12:658ca6865de2 662 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 663 {
AzureIoTClient 12:658ca6865de2 664 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 665 *status_code = 0;
AzureIoTClient 12:658ca6865de2 666 *request_id = 0;
AzureIoTClient 12:658ca6865de2 667 result = 0;
AzureIoTClient 12:658ca6865de2 668 break;
AzureIoTClient 12:658ca6865de2 669 }
AzureIoTClient 12:658ca6865de2 670 else
AzureIoTClient 12:658ca6865de2 671 {
AzureIoTClient 12:658ca6865de2 672 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 673 }
AzureIoTClient 12:658ca6865de2 674 }
AzureIoTClient 12:658ca6865de2 675 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 676 {
AzureIoTClient 12:658ca6865de2 677 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 678 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 679 {
AzureIoTClient 12:658ca6865de2 680 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 681 }
AzureIoTClient 12:658ca6865de2 682 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 683 result = 0;
AzureIoTClient 12:658ca6865de2 684 break;
AzureIoTClient 12:658ca6865de2 685 }
AzureIoTClient 12:658ca6865de2 686 token_count++;
AzureIoTClient 12:658ca6865de2 687 }
AzureIoTClient 12:658ca6865de2 688 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 689 }
AzureIoTClient 12:658ca6865de2 690 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 691 }
AzureIoTClient 12:658ca6865de2 692 return result;
AzureIoTClient 12:658ca6865de2 693 }
AzureIoTClient 12:658ca6865de2 694
AzureIoTClient 12:658ca6865de2 695 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 696 {
AzureIoTClient 12:658ca6865de2 697 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 698 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 699 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 700 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 701 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 702
AzureIoTClient 12:658ca6865de2 703 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 704 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 705 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 706 {
AzureIoTClient 12:658ca6865de2 707 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 708 search_device_method = false;
AzureIoTClient 12:658ca6865de2 709 }
AzureIoTClient 12:658ca6865de2 710 else
AzureIoTClient 12:658ca6865de2 711 {
AzureIoTClient 16:14640ee83e99 712 size_t index = 0;
AzureIoTClient 16:14640ee83e99 713 for (index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 714 {
AzureIoTClient 12:658ca6865de2 715 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 716 {
AzureIoTClient 12:658ca6865de2 717 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 718 {
AzureIoTClient 12:658ca6865de2 719 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 720 }
AzureIoTClient 12:658ca6865de2 721 else
AzureIoTClient 12:658ca6865de2 722 {
AzureIoTClient 12:658ca6865de2 723 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 724 {
AzureIoTClient 12:658ca6865de2 725 break;
AzureIoTClient 12:658ca6865de2 726 }
AzureIoTClient 14:4dc2b011be33 727 else if (TOUPPER(TOPIC_DEVICE_TWIN_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 728 {
AzureIoTClient 12:658ca6865de2 729 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 730 }
AzureIoTClient 12:658ca6865de2 731 }
AzureIoTClient 12:658ca6865de2 732 }
AzureIoTClient 12:658ca6865de2 733 if (search_device_method)
AzureIoTClient 12:658ca6865de2 734 {
AzureIoTClient 12:658ca6865de2 735 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 736 {
AzureIoTClient 12:658ca6865de2 737 search_device_method = false;
AzureIoTClient 12:658ca6865de2 738 }
AzureIoTClient 12:658ca6865de2 739 else
AzureIoTClient 12:658ca6865de2 740 {
AzureIoTClient 12:658ca6865de2 741 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 742 {
AzureIoTClient 12:658ca6865de2 743 break;
AzureIoTClient 12:658ca6865de2 744 }
AzureIoTClient 14:4dc2b011be33 745 else if (TOUPPER(TOPIC_DEVICE_METHOD_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 746 {
AzureIoTClient 12:658ca6865de2 747 search_device_method = false;
AzureIoTClient 12:658ca6865de2 748 }
AzureIoTClient 12:658ca6865de2 749 }
AzureIoTClient 12:658ca6865de2 750 }
AzureIoTClient 12:658ca6865de2 751 }
AzureIoTClient 12:658ca6865de2 752 }
AzureIoTClient 12:658ca6865de2 753 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 754 {
AzureIoTClient 12:658ca6865de2 755 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 756 }
AzureIoTClient 12:658ca6865de2 757 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 758 {
AzureIoTClient 12:658ca6865de2 759 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 760 }
AzureIoTClient 12:658ca6865de2 761 else
AzureIoTClient 12:658ca6865de2 762 {
AzureIoTClient 12:658ca6865de2 763 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 764 }
AzureIoTClient 12:658ca6865de2 765 return type;
AzureIoTClient 12:658ca6865de2 766 }
AzureIoTClient 12:658ca6865de2 767
AzureIoTClient 11:31ebaeb51e1e 768 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 769 {
AzureIoTClient 11:31ebaeb51e1e 770 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 771 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 772 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 773 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 774 }
AzureIoTClient 11:31ebaeb51e1e 775
AzureIoTClient 11:31ebaeb51e1e 776 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 777 {
AzureIoTClient 11:31ebaeb51e1e 778 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 779 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 780 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 781 size_t propertyCount;
AzureIoTClient 11:31ebaeb51e1e 782
AzureIoTClient 11:31ebaeb51e1e 783 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 784 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 785 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 786 {
AzureIoTClient 11:31ebaeb51e1e 787 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 788 {
AzureIoTClient 11:31ebaeb51e1e 789 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 790 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 791 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 792 }
AzureIoTClient 11:31ebaeb51e1e 793 else
AzureIoTClient 11:31ebaeb51e1e 794 {
AzureIoTClient 11:31ebaeb51e1e 795 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 796 {
AzureIoTClient 16:14640ee83e99 797 size_t index = 0;
AzureIoTClient 16:14640ee83e99 798 for (index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 799 {
AzureIoTClient 11:31ebaeb51e1e 800 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 801 {
AzureIoTClient 11:31ebaeb51e1e 802 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 803 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 804 }
AzureIoTClient 11:31ebaeb51e1e 805 }
AzureIoTClient 11:31ebaeb51e1e 806 }
AzureIoTClient 11:31ebaeb51e1e 807 }
AzureIoTClient 11:31ebaeb51e1e 808 }
AzureIoTClient 11:31ebaeb51e1e 809 return result;
AzureIoTClient 11:31ebaeb51e1e 810 }
AzureIoTClient 11:31ebaeb51e1e 811
AzureIoTClient 11:31ebaeb51e1e 812 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 813 {
AzureIoTClient 11:31ebaeb51e1e 814 int result;
AzureIoTClient 11:31ebaeb51e1e 815 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 816 if (msgTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 817 {
AzureIoTClient 11:31ebaeb51e1e 818 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 819 }
AzureIoTClient 11:31ebaeb51e1e 820 else
AzureIoTClient 11:31ebaeb51e1e 821 {
AzureIoTClient 11:31ebaeb51e1e 822 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 823 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 824 {
AzureIoTClient 11:31ebaeb51e1e 825 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 826 }
AzureIoTClient 11:31ebaeb51e1e 827 else
AzureIoTClient 11:31ebaeb51e1e 828 {
Azure.IoT.Build 13:606465879c57 829 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 830 {
AzureIoTClient 11:31ebaeb51e1e 831 LogError("Failed retrieving tickcounter info");
AzureIoTClient 11:31ebaeb51e1e 832 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 833 }
AzureIoTClient 11:31ebaeb51e1e 834 else
AzureIoTClient 11:31ebaeb51e1e 835 {
AzureIoTClient 11:31ebaeb51e1e 836 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 837 {
AzureIoTClient 11:31ebaeb51e1e 838 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 839 }
AzureIoTClient 11:31ebaeb51e1e 840 else
AzureIoTClient 11:31ebaeb51e1e 841 {
AzureIoTClient 11:31ebaeb51e1e 842 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 843 result = 0;
AzureIoTClient 11:31ebaeb51e1e 844 }
AzureIoTClient 11:31ebaeb51e1e 845 }
AzureIoTClient 11:31ebaeb51e1e 846 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 847 }
AzureIoTClient 11:31ebaeb51e1e 848 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 849 }
AzureIoTClient 11:31ebaeb51e1e 850 return result;
AzureIoTClient 11:31ebaeb51e1e 851 }
AzureIoTClient 11:31ebaeb51e1e 852
AzureIoTClient 14:4dc2b011be33 853 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 854 {
AzureIoTClient 12:658ca6865de2 855 int result;
AzureIoTClient 12:658ca6865de2 856 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 857
AzureIoTClient 14:4dc2b011be33 858 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id) );
AzureIoTClient 12:658ca6865de2 859 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 860 {
AzureIoTClient 12:658ca6865de2 861 LogError("Failed constructing message topic.");
AzureIoTClient 12:658ca6865de2 862 result = __LINE__;
AzureIoTClient 12:658ca6865de2 863 }
AzureIoTClient 12:658ca6865de2 864 else
AzureIoTClient 12:658ca6865de2 865 {
AzureIoTClient 14:4dc2b011be33 866 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 867 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 868 {
AzureIoTClient 12:658ca6865de2 869 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 870 result = __LINE__;
AzureIoTClient 12:658ca6865de2 871 }
AzureIoTClient 12:658ca6865de2 872 else
AzureIoTClient 12:658ca6865de2 873 {
AzureIoTClient 12:658ca6865de2 874 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 875 {
AzureIoTClient 12:658ca6865de2 876 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 877 result = __LINE__;
AzureIoTClient 12:658ca6865de2 878 }
AzureIoTClient 12:658ca6865de2 879 else
AzureIoTClient 12:658ca6865de2 880 {
AzureIoTClient 12:658ca6865de2 881 result = 0;
AzureIoTClient 12:658ca6865de2 882 }
AzureIoTClient 12:658ca6865de2 883 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 884 }
AzureIoTClient 12:658ca6865de2 885 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 886 }
AzureIoTClient 12:658ca6865de2 887 return result;
AzureIoTClient 12:658ca6865de2 888 }
AzureIoTClient 12:658ca6865de2 889
AzureIoTClient 12:658ca6865de2 890 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 891 {
AzureIoTClient 12:658ca6865de2 892 int result;
AzureIoTClient 12:658ca6865de2 893 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 894 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 895 {
AzureIoTClient 12:658ca6865de2 896 LogError("Failed allocating device twin data.");
AzureIoTClient 12:658ca6865de2 897 result = __LINE__;
AzureIoTClient 12:658ca6865de2 898 }
AzureIoTClient 12:658ca6865de2 899 else
AzureIoTClient 12:658ca6865de2 900 {
AzureIoTClient 12:658ca6865de2 901 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 902 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 903 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 904 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 905 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 906 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 907 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 908 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 909 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 910 {
AzureIoTClient 12:658ca6865de2 911 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 912 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 913 result = __LINE__;
AzureIoTClient 12:658ca6865de2 914 }
AzureIoTClient 12:658ca6865de2 915 else
AzureIoTClient 12:658ca6865de2 916 {
AzureIoTClient 12:658ca6865de2 917 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 918 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 919 {
AzureIoTClient 12:658ca6865de2 920 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 921 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 922 result = __LINE__;
AzureIoTClient 12:658ca6865de2 923 }
AzureIoTClient 12:658ca6865de2 924 else
AzureIoTClient 12:658ca6865de2 925 {
AzureIoTClient 12:658ca6865de2 926 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 927 {
AzureIoTClient 12:658ca6865de2 928 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 929 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 930 result = __LINE__;
AzureIoTClient 12:658ca6865de2 931 }
AzureIoTClient 12:658ca6865de2 932 else
AzureIoTClient 12:658ca6865de2 933 {
AzureIoTClient 12:658ca6865de2 934 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 935 result = 0;
AzureIoTClient 12:658ca6865de2 936 }
AzureIoTClient 12:658ca6865de2 937 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 938 }
AzureIoTClient 12:658ca6865de2 939 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 940 }
AzureIoTClient 12:658ca6865de2 941 }
AzureIoTClient 12:658ca6865de2 942 return result;
AzureIoTClient 12:658ca6865de2 943 }
AzureIoTClient 12:658ca6865de2 944
AzureIoTClient 12:658ca6865de2 945 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 946 {
AzureIoTClient 12:658ca6865de2 947 int result;
AzureIoTClient 12:658ca6865de2 948 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 949 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 950 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 951 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 952 {
AzureIoTClient 12:658ca6865de2 953 LogError("Failed constructing reported prop topic.");
AzureIoTClient 12:658ca6865de2 954 result = __LINE__;
AzureIoTClient 12:658ca6865de2 955 }
AzureIoTClient 12:658ca6865de2 956 else
AzureIoTClient 12:658ca6865de2 957 {
AzureIoTClient 12:658ca6865de2 958 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 959 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 960 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 961 {
AzureIoTClient 12:658ca6865de2 962 LogError("Failed creating mqtt message");
AzureIoTClient 12:658ca6865de2 963 result = __LINE__;
AzureIoTClient 12:658ca6865de2 964 }
AzureIoTClient 12:658ca6865de2 965 else
AzureIoTClient 12:658ca6865de2 966 {
Azure.IoT.Build 13:606465879c57 967 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 968 {
AzureIoTClient 12:658ca6865de2 969 LogError("Failed retrieving tickcounter info");
AzureIoTClient 12:658ca6865de2 970 result = __LINE__;
AzureIoTClient 12:658ca6865de2 971 }
AzureIoTClient 12:658ca6865de2 972 else
AzureIoTClient 12:658ca6865de2 973 {
AzureIoTClient 12:658ca6865de2 974 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 975 {
AzureIoTClient 12:658ca6865de2 976 LogError("Failed publishing mqtt message");
AzureIoTClient 12:658ca6865de2 977 result = __LINE__;
AzureIoTClient 12:658ca6865de2 978 }
AzureIoTClient 12:658ca6865de2 979 else
AzureIoTClient 12:658ca6865de2 980 {
AzureIoTClient 12:658ca6865de2 981 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 982 result = 0;
AzureIoTClient 12:658ca6865de2 983 }
AzureIoTClient 12:658ca6865de2 984 }
AzureIoTClient 12:658ca6865de2 985 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 986 }
AzureIoTClient 12:658ca6865de2 987 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 988 }
AzureIoTClient 12:658ca6865de2 989 return result;
AzureIoTClient 12:658ca6865de2 990 }
AzureIoTClient 12:658ca6865de2 991
AzureIoTClient 11:31ebaeb51e1e 992 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 993 {
AzureIoTClient 11:31ebaeb51e1e 994 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 995 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 16:14640ee83e99 996 size_t index = 0;
AzureIoTClient 16:14640ee83e99 997 for (index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 998 {
AzureIoTClient 11:31ebaeb51e1e 999 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 1000 {
AzureIoTClient 11:31ebaeb51e1e 1001 result = true;
AzureIoTClient 11:31ebaeb51e1e 1002 break;
AzureIoTClient 11:31ebaeb51e1e 1003 }
AzureIoTClient 11:31ebaeb51e1e 1004 }
AzureIoTClient 11:31ebaeb51e1e 1005 return result;
AzureIoTClient 11:31ebaeb51e1e 1006 }
AzureIoTClient 11:31ebaeb51e1e 1007
AzureIoTClient 11:31ebaeb51e1e 1008 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 1009 {
AzureIoTClient 11:31ebaeb51e1e 1010 int result;
AzureIoTClient 11:31ebaeb51e1e 1011 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 1012 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 1013 {
AzureIoTClient 11:31ebaeb51e1e 1014 LogError("Failure constructing string topic name.");
AzureIoTClient 11:31ebaeb51e1e 1015 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1016 }
AzureIoTClient 11:31ebaeb51e1e 1017 else
AzureIoTClient 11:31ebaeb51e1e 1018 {
AzureIoTClient 11:31ebaeb51e1e 1019 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1020 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1021 {
AzureIoTClient 11:31ebaeb51e1e 1022 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1023 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1024 {
AzureIoTClient 11:31ebaeb51e1e 1025 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 11:31ebaeb51e1e 1026 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1027 }
AzureIoTClient 11:31ebaeb51e1e 1028 else
AzureIoTClient 11:31ebaeb51e1e 1029 {
AzureIoTClient 11:31ebaeb51e1e 1030 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1031 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1032 {
AzureIoTClient 11:31ebaeb51e1e 1033 LogError("Failure to allocate STRING_new.");
AzureIoTClient 11:31ebaeb51e1e 1034 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1035 }
AzureIoTClient 11:31ebaeb51e1e 1036 else
AzureIoTClient 11:31ebaeb51e1e 1037 {
AzureIoTClient 11:31ebaeb51e1e 1038 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1039 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1040 {
AzureIoTClient 11:31ebaeb51e1e 1041 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1042 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1043 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1044 {
AzureIoTClient 11:31ebaeb51e1e 1045 break;
AzureIoTClient 11:31ebaeb51e1e 1046 }
AzureIoTClient 11:31ebaeb51e1e 1047 else
AzureIoTClient 11:31ebaeb51e1e 1048 {
AzureIoTClient 11:31ebaeb51e1e 1049 if (!isSystemProperty(tokenData) )
AzureIoTClient 11:31ebaeb51e1e 1050 {
AzureIoTClient 11:31ebaeb51e1e 1051 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1052 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1053 {
AzureIoTClient 11:31ebaeb51e1e 1054 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1055 {
AzureIoTClient 11:31ebaeb51e1e 1056 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1057 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1058
AzureIoTClient 11:31ebaeb51e1e 1059 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1060 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1061
AzureIoTClient 11:31ebaeb51e1e 1062 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1063 {
AzureIoTClient 11:31ebaeb51e1e 1064 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1065 }
AzureIoTClient 11:31ebaeb51e1e 1066 else
AzureIoTClient 11:31ebaeb51e1e 1067 {
AzureIoTClient 11:31ebaeb51e1e 1068 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1069 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1070
AzureIoTClient 11:31ebaeb51e1e 1071 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1072 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1073
AzureIoTClient 11:31ebaeb51e1e 1074 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1075 {
AzureIoTClient 11:31ebaeb51e1e 1076 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 11:31ebaeb51e1e 1077 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1078 }
AzureIoTClient 11:31ebaeb51e1e 1079 }
AzureIoTClient 11:31ebaeb51e1e 1080 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1081 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1082
AzureIoTClient 11:31ebaeb51e1e 1083 break;
AzureIoTClient 11:31ebaeb51e1e 1084 }
AzureIoTClient 11:31ebaeb51e1e 1085 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1086 }
AzureIoTClient 11:31ebaeb51e1e 1087 }
AzureIoTClient 11:31ebaeb51e1e 1088 }
AzureIoTClient 11:31ebaeb51e1e 1089 }
AzureIoTClient 11:31ebaeb51e1e 1090 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1091 }
AzureIoTClient 11:31ebaeb51e1e 1092 }
AzureIoTClient 11:31ebaeb51e1e 1093 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1094 }
AzureIoTClient 11:31ebaeb51e1e 1095 else
AzureIoTClient 11:31ebaeb51e1e 1096 {
AzureIoTClient 11:31ebaeb51e1e 1097 LogError("Unable to create Tokenizer object.");
AzureIoTClient 11:31ebaeb51e1e 1098 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1099 }
AzureIoTClient 11:31ebaeb51e1e 1100 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1101 }
AzureIoTClient 11:31ebaeb51e1e 1102 return result;
AzureIoTClient 11:31ebaeb51e1e 1103 }
AzureIoTClient 11:31ebaeb51e1e 1104
AzureIoTClient 11:31ebaeb51e1e 1105 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1106 {
AzureIoTClient 14:4dc2b011be33 1107 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
AzureIoTClient 11:31ebaeb51e1e 1108 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1109 {
AzureIoTClient 14:4dc2b011be33 1110 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
AzureIoTClient 11:31ebaeb51e1e 1111 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1112 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1113 {
AzureIoTClient 11:31ebaeb51e1e 1114 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1115 }
AzureIoTClient 11:31ebaeb51e1e 1116 else
AzureIoTClient 11:31ebaeb51e1e 1117 {
AzureIoTClient 11:31ebaeb51e1e 1118 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1119
AzureIoTClient 12:658ca6865de2 1120 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1121 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1122 {
AzureIoTClient 12:658ca6865de2 1123 size_t request_id;
AzureIoTClient 12:658ca6865de2 1124 int status_code;
AzureIoTClient 12:658ca6865de2 1125 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1126 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1127 {
AzureIoTClient 12:658ca6865de2 1128 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1129 }
AzureIoTClient 12:658ca6865de2 1130 else
AzureIoTClient 12:658ca6865de2 1131 {
AzureIoTClient 12:658ca6865de2 1132 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1133 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1134 {
AzureIoTClient 12:658ca6865de2 1135 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1136 }
AzureIoTClient 12:658ca6865de2 1137 else
AzureIoTClient 12:658ca6865de2 1138 {
AzureIoTClient 12:658ca6865de2 1139 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1140 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1141 {
AzureIoTClient 12:658ca6865de2 1142 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1143 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1144 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1145 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1146 {
AzureIoTClient 12:658ca6865de2 1147 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1148 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1149 {
AzureIoTClient 14:4dc2b011be33 1150 /* 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 1151 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1152 }
AzureIoTClient 12:658ca6865de2 1153 else
AzureIoTClient 12:658ca6865de2 1154 {
AzureIoTClient 14:4dc2b011be33 1155 /* 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 1156 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1157 }
AzureIoTClient 12:658ca6865de2 1158 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1159 break;
AzureIoTClient 12:658ca6865de2 1160 }
AzureIoTClient 12:658ca6865de2 1161 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1162 }
AzureIoTClient 12:658ca6865de2 1163 }
AzureIoTClient 12:658ca6865de2 1164 }
AzureIoTClient 12:658ca6865de2 1165 }
AzureIoTClient 12:658ca6865de2 1166 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1167 {
AzureIoTClient 12:658ca6865de2 1168 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1169 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1170 {
AzureIoTClient 12:658ca6865de2 1171 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1172 }
AzureIoTClient 12:658ca6865de2 1173 else
AzureIoTClient 12:658ca6865de2 1174 {
AzureIoTClient 14:4dc2b011be33 1175 DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO) );
AzureIoTClient 14:4dc2b011be33 1176 if (dev_method_info == NULL)
AzureIoTClient 12:658ca6865de2 1177 {
AzureIoTClient 14:4dc2b011be33 1178 LogError("Failure: allocating DEVICE_METHOD_INFO object");
AzureIoTClient 12:658ca6865de2 1179 }
AzureIoTClient 12:658ca6865de2 1180 else
AzureIoTClient 12:658ca6865de2 1181 {
AzureIoTClient 14:4dc2b011be33 1182 dev_method_info->request_id = STRING_new();
AzureIoTClient 14:4dc2b011be33 1183 if (dev_method_info->request_id == NULL)
AzureIoTClient 14:4dc2b011be33 1184 {
AzureIoTClient 14:4dc2b011be33 1185 LogError("Failure constructing request_id string");
AzureIoTClient 14:4dc2b011be33 1186 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1187 }
AzureIoTClient 14:4dc2b011be33 1188 else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
AzureIoTClient 12:658ca6865de2 1189 {
AzureIoTClient 14:4dc2b011be33 1190 LogError("Failure: retrieve device topic info");
AzureIoTClient 14:4dc2b011be33 1191 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1192 free(dev_method_info);
AzureIoTClient 12:658ca6865de2 1193 }
AzureIoTClient 14:4dc2b011be33 1194 else
AzureIoTClient 14:4dc2b011be33 1195 {
AzureIoTClient 14:4dc2b011be33 1196 /* 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 1197 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 14:4dc2b011be33 1198 if (IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info) != 0)
AzureIoTClient 14:4dc2b011be33 1199 {
AzureIoTClient 14:4dc2b011be33 1200 LogError("Failure: IoTHubClient_LL_DeviceMethodComplete");
AzureIoTClient 14:4dc2b011be33 1201 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1202 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1203 }
AzureIoTClient 14:4dc2b011be33 1204 }
AzureIoTClient 12:658ca6865de2 1205 }
AzureIoTClient 12:658ca6865de2 1206 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1207 }
AzureIoTClient 11:31ebaeb51e1e 1208 }
AzureIoTClient 11:31ebaeb51e1e 1209 else
AzureIoTClient 11:31ebaeb51e1e 1210 {
AzureIoTClient 12:658ca6865de2 1211 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1212 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1213 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1214 {
AzureIoTClient 12:658ca6865de2 1215 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1216 }
AzureIoTClient 11:31ebaeb51e1e 1217 else
AzureIoTClient 11:31ebaeb51e1e 1218 {
AzureIoTClient 12:658ca6865de2 1219 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1220 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1221 {
AzureIoTClient 12:658ca6865de2 1222 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1223 }
AzureIoTClient 12:658ca6865de2 1224 else
AzureIoTClient 11:31ebaeb51e1e 1225 {
AzureIoTClient 14:4dc2b011be33 1226 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_056: [ If type is IOTHUB_TYPE_TELEMETRY, then on success mqtt_notification_callback shall call IoTHubClient_LL_MessageCallback. ] */
AzureIoTClient 12:658ca6865de2 1227 if (IoTHubClient_LL_MessageCallback(transportData->llClientHandle, IoTHubMessage) != IOTHUBMESSAGE_ACCEPTED)
AzureIoTClient 12:658ca6865de2 1228 {
AzureIoTClient 12:658ca6865de2 1229 LogError("Event not accepted by our client.");
AzureIoTClient 12:658ca6865de2 1230 }
AzureIoTClient 11:31ebaeb51e1e 1231 }
AzureIoTClient 12:658ca6865de2 1232 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1233 }
AzureIoTClient 11:31ebaeb51e1e 1234 }
AzureIoTClient 11:31ebaeb51e1e 1235 }
AzureIoTClient 11:31ebaeb51e1e 1236 }
AzureIoTClient 11:31ebaeb51e1e 1237 }
AzureIoTClient 11:31ebaeb51e1e 1238
AzureIoTClient 11:31ebaeb51e1e 1239 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1240 {
AzureIoTClient 11:31ebaeb51e1e 1241 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1242 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1243 {
AzureIoTClient 11:31ebaeb51e1e 1244 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1245
AzureIoTClient 11:31ebaeb51e1e 1246 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1247 {
AzureIoTClient 11:31ebaeb51e1e 1248 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1249 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1250 {
AzureIoTClient 11:31ebaeb51e1e 1251 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1252 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1253 {
AzureIoTClient 11:31ebaeb51e1e 1254 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1255 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1256 {
AzureIoTClient 11:31ebaeb51e1e 1257 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1258 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1259 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1260
AzureIoTClient 11:31ebaeb51e1e 1261 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1262 {
AzureIoTClient 11:31ebaeb51e1e 1263 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1264 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1265 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1266 }
AzureIoTClient 11:31ebaeb51e1e 1267 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1268 }
AzureIoTClient 11:31ebaeb51e1e 1269 }
AzureIoTClient 11:31ebaeb51e1e 1270 else
AzureIoTClient 11:31ebaeb51e1e 1271 {
AzureIoTClient 11:31ebaeb51e1e 1272 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1273 }
AzureIoTClient 11:31ebaeb51e1e 1274 break;
AzureIoTClient 11:31ebaeb51e1e 1275 }
AzureIoTClient 11:31ebaeb51e1e 1276 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1277 {
AzureIoTClient 11:31ebaeb51e1e 1278 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1279 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1280 {
AzureIoTClient 11:31ebaeb51e1e 1281 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1282 {
AzureIoTClient 11:31ebaeb51e1e 1283 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1284 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1285 transport_data->isRecoverableError = true;
AzureIoTClient 12:658ca6865de2 1286 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 1287 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1288 }
AzureIoTClient 11:31ebaeb51e1e 1289 else
AzureIoTClient 11:31ebaeb51e1e 1290 {
AzureIoTClient 12:658ca6865de2 1291 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1292 {
AzureIoTClient 12:658ca6865de2 1293 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1294 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1295 }
AzureIoTClient 12:658ca6865de2 1296 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1297 {
AzureIoTClient 12:658ca6865de2 1298 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1299 }
AzureIoTClient 12:658ca6865de2 1300 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1301 {
AzureIoTClient 12:658ca6865de2 1302 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1303 }
AzureIoTClient 11:31ebaeb51e1e 1304 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1305 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1306 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1307 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1308 }
AzureIoTClient 11:31ebaeb51e1e 1309 }
AzureIoTClient 11:31ebaeb51e1e 1310 else
AzureIoTClient 11:31ebaeb51e1e 1311 {
AzureIoTClient 11:31ebaeb51e1e 1312 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1313 }
AzureIoTClient 11:31ebaeb51e1e 1314 break;
AzureIoTClient 11:31ebaeb51e1e 1315 }
AzureIoTClient 11:31ebaeb51e1e 1316 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1317 {
AzureIoTClient 11:31ebaeb51e1e 1318 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1319 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1320 {
AzureIoTClient 16:14640ee83e99 1321 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1322 for (index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1323 {
AzureIoTClient 11:31ebaeb51e1e 1324 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1325 {
AzureIoTClient 11:31ebaeb51e1e 1326 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1327 }
AzureIoTClient 11:31ebaeb51e1e 1328 }
AzureIoTClient 11:31ebaeb51e1e 1329 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1330 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1331 }
AzureIoTClient 11:31ebaeb51e1e 1332 else
AzureIoTClient 11:31ebaeb51e1e 1333 {
AzureIoTClient 11:31ebaeb51e1e 1334 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1335 }
AzureIoTClient 11:31ebaeb51e1e 1336 break;
AzureIoTClient 11:31ebaeb51e1e 1337 }
AzureIoTClient 11:31ebaeb51e1e 1338 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1339 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1340 {
AzureIoTClient 11:31ebaeb51e1e 1341 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1342 break;
AzureIoTClient 11:31ebaeb51e1e 1343 }
AzureIoTClient 11:31ebaeb51e1e 1344 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1345 {
AzureIoTClient 11:31ebaeb51e1e 1346 // Close the client so we can reconnect again
AzureIoTClient 11:31ebaeb51e1e 1347 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1348 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1349 break;
AzureIoTClient 11:31ebaeb51e1e 1350 }
AzureIoTClient 17:774695cb8554 1351 case MQTT_CLIENT_ON_UNSUBSCRIBE_ACK:
AzureIoTClient 17:774695cb8554 1352 {
AzureIoTClient 17:774695cb8554 1353 break;
AzureIoTClient 17:774695cb8554 1354 }
AzureIoTClient 12:658ca6865de2 1355 }
AzureIoTClient 12:658ca6865de2 1356 }
AzureIoTClient 12:658ca6865de2 1357 }
AzureIoTClient 12:658ca6865de2 1358
AzureIoTClient 12:658ca6865de2 1359 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1360 {
AzureIoTClient 12:658ca6865de2 1361 (void)handle;
AzureIoTClient 12:658ca6865de2 1362 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1363 {
AzureIoTClient 12:658ca6865de2 1364 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1365 switch (error)
AzureIoTClient 12:658ca6865de2 1366 {
AzureIoTClient 12:658ca6865de2 1367 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1368 {
AzureIoTClient 12:658ca6865de2 1369 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1370 break;
AzureIoTClient 12:658ca6865de2 1371 }
AzureIoTClient 12:658ca6865de2 1372 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1373 {
AzureIoTClient 12:658ca6865de2 1374 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1375 break;
AzureIoTClient 11:31ebaeb51e1e 1376 }
AzureIoTClient 17:774695cb8554 1377 case MQTT_CLIENT_PARSE_ERROR:
AzureIoTClient 17:774695cb8554 1378 case MQTT_CLIENT_MEMORY_ERROR:
AzureIoTClient 17:774695cb8554 1379 case MQTT_CLIENT_COMMUNICATION_ERROR:
AzureIoTClient 17:774695cb8554 1380 case MQTT_CLIENT_UNKNOWN_ERROR:
AzureIoTClient 17:774695cb8554 1381 {
AzureIoTClient 17:774695cb8554 1382 LogError("INTERNAL ERROR: unexpected error value received %s", ENUM_TO_STRING(MQTT_CLIENT_EVENT_ERROR, error));
AzureIoTClient 17:774695cb8554 1383 }
AzureIoTClient 11:31ebaeb51e1e 1384 }
AzureIoTClient 12:658ca6865de2 1385 transport_data->isConnected = false;
AzureIoTClient 12:658ca6865de2 1386 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1387 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1388 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1389 {
Azure.IoT.Build 13:606465879c57 1390 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1391 }
Azure.IoT.Build 13:606465879c57 1392 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1393 {
Azure.IoT.Build 13:606465879c57 1394 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1395 }
Azure.IoT.Build 13:606465879c57 1396 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1397 {
Azure.IoT.Build 13:606465879c57 1398 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1399 }
Azure.IoT.Build 13:606465879c57 1400 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1401 {
Azure.IoT.Build 13:606465879c57 1402 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1403 }
Azure.IoT.Build 13:606465879c57 1404 }
AzureIoTClient 12:658ca6865de2 1405 else
AzureIoTClient 12:658ca6865de2 1406 {
AzureIoTClient 12:658ca6865de2 1407 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1408 }
AzureIoTClient 11:31ebaeb51e1e 1409 }
AzureIoTClient 11:31ebaeb51e1e 1410
AzureIoTClient 11:31ebaeb51e1e 1411 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1412 {
AzureIoTClient 11:31ebaeb51e1e 1413 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1414 {
AzureIoTClient 11:31ebaeb51e1e 1415 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1416 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1417 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1418 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1419 {
AzureIoTClient 11:31ebaeb51e1e 1420 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1421 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1422 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1423 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1424 }
AzureIoTClient 12:658ca6865de2 1425 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1426 {
AzureIoTClient 12:658ca6865de2 1427 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1428 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1429 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1430 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1431 }
AzureIoTClient 12:658ca6865de2 1432 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1433 {
AzureIoTClient 12:658ca6865de2 1434 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1435 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1436 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1437 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1438 }
AzureIoTClient 12:658ca6865de2 1439 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1440 {
AzureIoTClient 12:658ca6865de2 1441 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1442 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1443 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1444 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1445 }
AzureIoTClient 11:31ebaeb51e1e 1446
AzureIoTClient 11:31ebaeb51e1e 1447 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1448 {
AzureIoTClient 12:658ca6865de2 1449 /* 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 1450 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1451 {
AzureIoTClient 12:658ca6865de2 1452 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1453 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1454 }
AzureIoTClient 11:31ebaeb51e1e 1455 else
AzureIoTClient 11:31ebaeb51e1e 1456 {
AzureIoTClient 12:658ca6865de2 1457 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1458 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1459 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1460 }
AzureIoTClient 11:31ebaeb51e1e 1461 }
AzureIoTClient 11:31ebaeb51e1e 1462 else
AzureIoTClient 11:31ebaeb51e1e 1463 {
AzureIoTClient 12:658ca6865de2 1464 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1465 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1466 }
AzureIoTClient 11:31ebaeb51e1e 1467 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1468 }
AzureIoTClient 11:31ebaeb51e1e 1469 else
AzureIoTClient 11:31ebaeb51e1e 1470 {
AzureIoTClient 11:31ebaeb51e1e 1471 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1472 }
AzureIoTClient 11:31ebaeb51e1e 1473 }
AzureIoTClient 11:31ebaeb51e1e 1474
AzureIoTClient 11:31ebaeb51e1e 1475 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1476 {
AzureIoTClient 11:31ebaeb51e1e 1477 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1478
AzureIoTClient 11:31ebaeb51e1e 1479 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1480 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1481 {
AzureIoTClient 11:31ebaeb51e1e 1482 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1483 {
AzureIoTClient 11:31ebaeb51e1e 1484 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1485 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1486 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1487 }
AzureIoTClient 11:31ebaeb51e1e 1488 }
AzureIoTClient 11:31ebaeb51e1e 1489 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1490 {
AzureIoTClient 11:31ebaeb51e1e 1491 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1492 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1493 {
AzureIoTClient 11:31ebaeb51e1e 1494 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1495 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1496 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1497 }
AzureIoTClient 11:31ebaeb51e1e 1498 else
AzureIoTClient 11:31ebaeb51e1e 1499 {
AzureIoTClient 11:31ebaeb51e1e 1500 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1501 }
AzureIoTClient 11:31ebaeb51e1e 1502 }
AzureIoTClient 11:31ebaeb51e1e 1503 else
AzureIoTClient 11:31ebaeb51e1e 1504 {
AzureIoTClient 11:31ebaeb51e1e 1505 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1506 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1507 }
AzureIoTClient 11:31ebaeb51e1e 1508 return result;
AzureIoTClient 11:31ebaeb51e1e 1509 }
AzureIoTClient 11:31ebaeb51e1e 1510
AzureIoTClient 11:31ebaeb51e1e 1511 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1512 {
AzureIoTClient 11:31ebaeb51e1e 1513 int result;
AzureIoTClient 11:31ebaeb51e1e 1514
AzureIoTClient 11:31ebaeb51e1e 1515 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1516 {
AzureIoTClient 11:31ebaeb51e1e 1517 // construct address
AzureIoTClient 11:31ebaeb51e1e 1518 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1519 transport_data->xioTransport = transport_data->get_io_transport(hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1520 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1521 {
AzureIoTClient 11:31ebaeb51e1e 1522 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 11:31ebaeb51e1e 1523 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1524 }
AzureIoTClient 11:31ebaeb51e1e 1525 else
AzureIoTClient 11:31ebaeb51e1e 1526 {
AzureIoTClient 11:31ebaeb51e1e 1527 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1528 }
AzureIoTClient 11:31ebaeb51e1e 1529 }
AzureIoTClient 11:31ebaeb51e1e 1530 else
AzureIoTClient 11:31ebaeb51e1e 1531 {
AzureIoTClient 11:31ebaeb51e1e 1532 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1533 }
AzureIoTClient 11:31ebaeb51e1e 1534 return result;
AzureIoTClient 11:31ebaeb51e1e 1535 }
AzureIoTClient 11:31ebaeb51e1e 1536
AzureIoTClient 11:31ebaeb51e1e 1537 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1538 {
AzureIoTClient 11:31ebaeb51e1e 1539 int result;
AzureIoTClient 11:31ebaeb51e1e 1540
AzureIoTClient 11:31ebaeb51e1e 1541 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 11:31ebaeb51e1e 1542 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1543 if (emptyKeyName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1544 {
AzureIoTClient 11:31ebaeb51e1e 1545 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1546 }
AzureIoTClient 11:31ebaeb51e1e 1547 else
AzureIoTClient 11:31ebaeb51e1e 1548 {
AzureIoTClient 11:31ebaeb51e1e 1549 STRING_HANDLE sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1550 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1551
AzureIoTClient 11:31ebaeb51e1e 1552 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1553 {
AzureIoTClient 12:658ca6865de2 1554 case SAS_TOKEN_FROM_USER:
AzureIoTClient 12:658ca6865de2 1555 sasToken = STRING_clone(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 12:658ca6865de2 1556 if (!SASToken_Validate(sasToken))
AzureIoTClient 11:31ebaeb51e1e 1557 {
AzureIoTClient 12:658ca6865de2 1558 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 12:658ca6865de2 1559 STRING_delete(sasToken);
AzureIoTClient 12:658ca6865de2 1560 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1561 }
AzureIoTClient 12:658ca6865de2 1562 break;
AzureIoTClient 12:658ca6865de2 1563 case DEVICE_KEY:
AzureIoTClient 12:658ca6865de2 1564 {
AzureIoTClient 12:658ca6865de2 1565 // Construct SAS token
AzureIoTClient 12:658ca6865de2 1566 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 12:658ca6865de2 1567 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 11:31ebaeb51e1e 1568
AzureIoTClient 12:658ca6865de2 1569 sasToken = SASToken_Create(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey, transport_data->devicesPath, emptyKeyName, expiryTime);
AzureIoTClient 12:658ca6865de2 1570 break;
AzureIoTClient 12:658ca6865de2 1571 }
AzureIoTClient 12:658ca6865de2 1572 case X509:
AzureIoTClient 12:658ca6865de2 1573 default:
AzureIoTClient 12:658ca6865de2 1574 // The assumption here is that x509 is in place, if not setup
AzureIoTClient 12:658ca6865de2 1575 // correctly the connection will be rejected.
AzureIoTClient 12:658ca6865de2 1576 sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1577 break;
AzureIoTClient 11:31ebaeb51e1e 1578 }
AzureIoTClient 11:31ebaeb51e1e 1579
AzureIoTClient 12:658ca6865de2 1580 if (result == 0)
AzureIoTClient 11:31ebaeb51e1e 1581 {
AzureIoTClient 12:658ca6865de2 1582 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 12:658ca6865de2 1583 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 12:658ca6865de2 1584 options.willMessage = NULL;
AzureIoTClient 12:658ca6865de2 1585 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 1586 if (sasToken != NULL)
AzureIoTClient 12:658ca6865de2 1587 {
AzureIoTClient 12:658ca6865de2 1588 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 12:658ca6865de2 1589 }
AzureIoTClient 12:658ca6865de2 1590 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 12:658ca6865de2 1591 options.useCleanSession = false;
AzureIoTClient 12:658ca6865de2 1592 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1593
AzureIoTClient 12:658ca6865de2 1594 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 1595 {
AzureIoTClient 12:658ca6865de2 1596 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 12:658ca6865de2 1597 {
AzureIoTClient 12:658ca6865de2 1598 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 12:658ca6865de2 1599 result = __LINE__;
AzureIoTClient 12:658ca6865de2 1600 }
AzureIoTClient 12:658ca6865de2 1601 else
AzureIoTClient 12:658ca6865de2 1602 {
Azure.IoT.Build 13:606465879c57 1603 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 12:658ca6865de2 1604 result = 0;
AzureIoTClient 12:658ca6865de2 1605 }
AzureIoTClient 11:31ebaeb51e1e 1606 }
AzureIoTClient 11:31ebaeb51e1e 1607 else
AzureIoTClient 11:31ebaeb51e1e 1608 {
AzureIoTClient 12:658ca6865de2 1609 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1610 }
AzureIoTClient 12:658ca6865de2 1611
AzureIoTClient 12:658ca6865de2 1612 STRING_delete(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1613 }
AzureIoTClient 11:31ebaeb51e1e 1614 STRING_delete(emptyKeyName);
AzureIoTClient 11:31ebaeb51e1e 1615 }
AzureIoTClient 11:31ebaeb51e1e 1616 return result;
AzureIoTClient 11:31ebaeb51e1e 1617 }
AzureIoTClient 11:31ebaeb51e1e 1618
AzureIoTClient 11:31ebaeb51e1e 1619 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1620 {
AzureIoTClient 11:31ebaeb51e1e 1621 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1622
AzureIoTClient 11:31ebaeb51e1e 1623 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1624 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1625 {
AzureIoTClient 11:31ebaeb51e1e 1626 // If we are not isConnected then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1627 // to back off the connecting to the server
AzureIoTClient 12:658ca6865de2 1628 if (!transport_data->isConnected && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1629 {
Azure.IoT.Build 13:606465879c57 1630 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1631 {
AzureIoTClient 12:658ca6865de2 1632 transport_data->connectFailCount++;
AzureIoTClient 12:658ca6865de2 1633 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1634 }
AzureIoTClient 12:658ca6865de2 1635 else
AzureIoTClient 11:31ebaeb51e1e 1636 {
AzureIoTClient 12:658ca6865de2 1637 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1638 {
AzureIoTClient 11:31ebaeb51e1e 1639 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1640 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1641 }
AzureIoTClient 11:31ebaeb51e1e 1642 else
AzureIoTClient 11:31ebaeb51e1e 1643 {
AzureIoTClient 12:658ca6865de2 1644 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1645 transport_data->isConnected = true;
AzureIoTClient 12:658ca6865de2 1646 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1647 }
AzureIoTClient 11:31ebaeb51e1e 1648 }
AzureIoTClient 11:31ebaeb51e1e 1649 }
AzureIoTClient 11:31ebaeb51e1e 1650
AzureIoTClient 11:31ebaeb51e1e 1651 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 1652 {
AzureIoTClient 11:31ebaeb51e1e 1653 // We are isConnected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1654 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1655 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1656 {
AzureIoTClient 11:31ebaeb51e1e 1657 transport_data->connectFailCount++;
AzureIoTClient 11:31ebaeb51e1e 1658 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1659 }
AzureIoTClient 11:31ebaeb51e1e 1660 else
AzureIoTClient 11:31ebaeb51e1e 1661 {
AzureIoTClient 11:31ebaeb51e1e 1662 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1663 {
AzureIoTClient 11:31ebaeb51e1e 1664 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 12:658ca6865de2 1665 IotHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 11:31ebaeb51e1e 1666 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1667 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1668 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1669 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1670 {
AzureIoTClient 11:31ebaeb51e1e 1671 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1672 }
AzureIoTClient 12:658ca6865de2 1673 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1674 {
AzureIoTClient 12:658ca6865de2 1675 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1676 }
AzureIoTClient 12:658ca6865de2 1677 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1678 {
AzureIoTClient 12:658ca6865de2 1679 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1680 }
AzureIoTClient 12:658ca6865de2 1681 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1682 {
AzureIoTClient 12:658ca6865de2 1683 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1684 }
AzureIoTClient 11:31ebaeb51e1e 1685 }
AzureIoTClient 11:31ebaeb51e1e 1686 }
AzureIoTClient 11:31ebaeb51e1e 1687 }
AzureIoTClient 11:31ebaeb51e1e 1688 }
AzureIoTClient 11:31ebaeb51e1e 1689 return result;
AzureIoTClient 11:31ebaeb51e1e 1690 }
AzureIoTClient 11:31ebaeb51e1e 1691
AzureIoTClient 11:31ebaeb51e1e 1692 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1693 {
AzureIoTClient 12:658ca6865de2 1694 STRING_HANDLE result = STRING_construct_sprintf("%s.%s/%s/api-version=%s&DeviceClientType=%s%%2F%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId, IOTHUB_API_VERSION, CLIENT_DEVICE_TYPE_PREFIX, IOTHUB_SDK_VERSION);
AzureIoTClient 11:31ebaeb51e1e 1695 return result;
AzureIoTClient 11:31ebaeb51e1e 1696 }
AzureIoTClient 11:31ebaeb51e1e 1697
AzureIoTClient 11:31ebaeb51e1e 1698 static int construct_credential_information(const IOTHUB_CLIENT_CONFIG* upperConfig, PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1699 {
AzureIoTClient 11:31ebaeb51e1e 1700 int result;
AzureIoTClient 11:31ebaeb51e1e 1701 if (upperConfig->deviceKey != NULL)
AzureIoTClient 11:31ebaeb51e1e 1702 {
AzureIoTClient 11:31ebaeb51e1e 1703 transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey = STRING_construct(upperConfig->deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1704 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey == NULL)
AzureIoTClient 11:31ebaeb51e1e 1705 {
AzureIoTClient 11:31ebaeb51e1e 1706 LogError("Could not create device key for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1707 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1708 }
AzureIoTClient 11:31ebaeb51e1e 1709 else if ((transport_data->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1710 {
AzureIoTClient 11:31ebaeb51e1e 1711 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1712 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1713 }
AzureIoTClient 11:31ebaeb51e1e 1714 else
AzureIoTClient 11:31ebaeb51e1e 1715 {
AzureIoTClient 11:31ebaeb51e1e 1716 transport_data->transport_creds.credential_type = DEVICE_KEY;
AzureIoTClient 11:31ebaeb51e1e 1717 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1718 }
AzureIoTClient 11:31ebaeb51e1e 1719 }
AzureIoTClient 11:31ebaeb51e1e 1720 else if (upperConfig->deviceSasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1721 {
AzureIoTClient 11:31ebaeb51e1e 1722 transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken = STRING_construct(upperConfig->deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1723 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1724 {
AzureIoTClient 11:31ebaeb51e1e 1725 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 1726 }
AzureIoTClient 11:31ebaeb51e1e 1727 else
AzureIoTClient 11:31ebaeb51e1e 1728 {
AzureIoTClient 11:31ebaeb51e1e 1729 transport_data->transport_creds.credential_type = SAS_TOKEN_FROM_USER;
AzureIoTClient 11:31ebaeb51e1e 1730 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1731 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1732 }
AzureIoTClient 11:31ebaeb51e1e 1733 }
AzureIoTClient 11:31ebaeb51e1e 1734 else
AzureIoTClient 11:31ebaeb51e1e 1735 {
AzureIoTClient 12:658ca6865de2 1736 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_041: [If both deviceKey and deviceSasToken fields are NULL then IoTHubTransport_MQTT_Common_Create shall assume a x509 authentication.] */
AzureIoTClient 11:31ebaeb51e1e 1737 transport_data->transport_creds.credential_type = X509;
AzureIoTClient 11:31ebaeb51e1e 1738 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1739 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1740 }
AzureIoTClient 11:31ebaeb51e1e 1741 return result;
AzureIoTClient 11:31ebaeb51e1e 1742 }
AzureIoTClient 11:31ebaeb51e1e 1743
AzureIoTClient 11:31ebaeb51e1e 1744 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 1745 {
AzureIoTClient 11:31ebaeb51e1e 1746 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1747 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1748 {
AzureIoTClient 11:31ebaeb51e1e 1749 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1750 }
Azure.IoT.Build 13:606465879c57 1751 else if ((state->msgTickCounter = tickcounter_create()) == NULL)
Azure.IoT.Build 13:606465879c57 1752 {
Azure.IoT.Build 13:606465879c57 1753 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT.Build 13:606465879c57 1754 free(state);
Azure.IoT.Build 13:606465879c57 1755 state = NULL;
Azure.IoT.Build 13:606465879c57 1756 }
AzureIoTClient 11:31ebaeb51e1e 1757 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1758 {
AzureIoTClient 11:31ebaeb51e1e 1759 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1760 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1761 free(state);
AzureIoTClient 11:31ebaeb51e1e 1762 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1763 }
AzureIoTClient 11:31ebaeb51e1e 1764 else
AzureIoTClient 11:31ebaeb51e1e 1765 {
AzureIoTClient 11:31ebaeb51e1e 1766 if (construct_credential_information(upperConfig, state) != 0)
AzureIoTClient 11:31ebaeb51e1e 1767 {
AzureIoTClient 11:31ebaeb51e1e 1768 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1769 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1770 free(state);
AzureIoTClient 11:31ebaeb51e1e 1771 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1772 }
AzureIoTClient 11:31ebaeb51e1e 1773 else if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1774 {
AzureIoTClient 11:31ebaeb51e1e 1775 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1776 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1777 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1778 {
AzureIoTClient 11:31ebaeb51e1e 1779 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1780 }
AzureIoTClient 11:31ebaeb51e1e 1781 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1782 {
AzureIoTClient 11:31ebaeb51e1e 1783 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1784 }
AzureIoTClient 11:31ebaeb51e1e 1785 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1786 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1787 free(state);
AzureIoTClient 11:31ebaeb51e1e 1788 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1789 }
AzureIoTClient 11:31ebaeb51e1e 1790 else
AzureIoTClient 11:31ebaeb51e1e 1791 {
AzureIoTClient 12:658ca6865de2 1792 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 11:31ebaeb51e1e 1793 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1794 {
AzureIoTClient 11:31ebaeb51e1e 1795 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1796 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1797 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1798 {
AzureIoTClient 11:31ebaeb51e1e 1799 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1800 }
AzureIoTClient 11:31ebaeb51e1e 1801 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1802 {
AzureIoTClient 11:31ebaeb51e1e 1803 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1804 }
AzureIoTClient 11:31ebaeb51e1e 1805 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1806 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1807 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1808 free(state);
AzureIoTClient 11:31ebaeb51e1e 1809 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1810 }
AzureIoTClient 11:31ebaeb51e1e 1811 else
AzureIoTClient 11:31ebaeb51e1e 1812 {
AzureIoTClient 11:31ebaeb51e1e 1813 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [If the upperConfig contains a valid protocolGatewayHostName value the this shall be used for the hostname, otherwise the hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 11:31ebaeb51e1e 1814 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1815 {
AzureIoTClient 11:31ebaeb51e1e 1816 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 11:31ebaeb51e1e 1817 }
AzureIoTClient 11:31ebaeb51e1e 1818 else
AzureIoTClient 11:31ebaeb51e1e 1819 {
AzureIoTClient 11:31ebaeb51e1e 1820 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 11:31ebaeb51e1e 1821 }
AzureIoTClient 11:31ebaeb51e1e 1822
AzureIoTClient 11:31ebaeb51e1e 1823 if (state->hostAddress == NULL)
AzureIoTClient 11:31ebaeb51e1e 1824 {
AzureIoTClient 11:31ebaeb51e1e 1825 LogError("failure constructing host address.");
AzureIoTClient 11:31ebaeb51e1e 1826 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1827 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1828 {
AzureIoTClient 11:31ebaeb51e1e 1829 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1830 }
AzureIoTClient 11:31ebaeb51e1e 1831 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1832 {
AzureIoTClient 11:31ebaeb51e1e 1833 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1834 }
AzureIoTClient 11:31ebaeb51e1e 1835 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1836 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1837 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1838 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1839 free(state);
AzureIoTClient 11:31ebaeb51e1e 1840 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1841 }
AzureIoTClient 11:31ebaeb51e1e 1842 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1843 {
AzureIoTClient 11:31ebaeb51e1e 1844 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1845 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1846 {
AzureIoTClient 11:31ebaeb51e1e 1847 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1848 }
AzureIoTClient 11:31ebaeb51e1e 1849 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1850 {
AzureIoTClient 11:31ebaeb51e1e 1851 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1852 }
AzureIoTClient 11:31ebaeb51e1e 1853 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1854 STRING_delete(state->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1855 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1856 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1857 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1858 free(state);
AzureIoTClient 11:31ebaeb51e1e 1859 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1860 }
AzureIoTClient 11:31ebaeb51e1e 1861 else
AzureIoTClient 11:31ebaeb51e1e 1862 {
AzureIoTClient 12:658ca6865de2 1863 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransport_MQTT_Common_Create shall allocate memory to save its internal state where all topics, hostname, device_id, device_key, sasTokenSr and client handle shall be saved.] */
AzureIoTClient 11:31ebaeb51e1e 1864 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 12:658ca6865de2 1865 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 11:31ebaeb51e1e 1866 state->isDestroyCalled = false;
AzureIoTClient 11:31ebaeb51e1e 1867 state->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 1868 state->isConnected = false;
AzureIoTClient 12:658ca6865de2 1869 state->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1870 state->isRecoverableError = true;
AzureIoTClient 11:31ebaeb51e1e 1871 state->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 1872 state->llClientHandle = NULL;
AzureIoTClient 11:31ebaeb51e1e 1873 state->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1874 state->portNum = 0;
AzureIoTClient 11:31ebaeb51e1e 1875 state->waitingToSend = waitingToSend;
AzureIoTClient 11:31ebaeb51e1e 1876 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1877 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 11:31ebaeb51e1e 1878 state->connectFailCount = 0;
AzureIoTClient 11:31ebaeb51e1e 1879 state->connectTick = 0;
AzureIoTClient 11:31ebaeb51e1e 1880 state->topic_MqttMessage = NULL;
AzureIoTClient 12:658ca6865de2 1881 state->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 1882 state->topic_NotifyState = NULL;
AzureIoTClient 11:31ebaeb51e1e 1883 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 12:658ca6865de2 1884 state->topic_DeviceMethods = NULL;
AzureIoTClient 11:31ebaeb51e1e 1885 state->log_trace = state->raw_trace = false;
AzureIoTClient 12:658ca6865de2 1886 state->retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 1887 srand((unsigned int)get_time(NULL));
AzureIoTClient 11:31ebaeb51e1e 1888 }
AzureIoTClient 11:31ebaeb51e1e 1889 }
AzureIoTClient 11:31ebaeb51e1e 1890 }
AzureIoTClient 11:31ebaeb51e1e 1891 }
AzureIoTClient 11:31ebaeb51e1e 1892 return state;
AzureIoTClient 11:31ebaeb51e1e 1893 }
AzureIoTClient 11:31ebaeb51e1e 1894
AzureIoTClient 11:31ebaeb51e1e 1895 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 1896 {
AzureIoTClient 11:31ebaeb51e1e 1897 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 1898 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 1899
AzureIoTClient 12:658ca6865de2 1900 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1901 /* 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 1902 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1903 {
AzureIoTClient 11:31ebaeb51e1e 1904 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1905 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1906 }
AzureIoTClient 12:658ca6865de2 1907 /* 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 1908 /* 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 1909 /* 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 1910 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1911 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1912 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1913 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 1914 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1915 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 1916 {
AzureIoTClient 11:31ebaeb51e1e 1917 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 1918 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1919 }
AzureIoTClient 12:658ca6865de2 1920 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1921 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 1922 {
AzureIoTClient 11:31ebaeb51e1e 1923 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 1924 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1925 }
AzureIoTClient 12:658ca6865de2 1926 /* 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 1927 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 1928 {
AzureIoTClient 11:31ebaeb51e1e 1929 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 1930 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1931 }
AzureIoTClient 12:658ca6865de2 1932 /* 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 1933 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 1934 {
AzureIoTClient 11:31ebaeb51e1e 1935 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 1936 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1937 }
AzureIoTClient 12:658ca6865de2 1938 /* 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 1939 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 1940 {
AzureIoTClient 11:31ebaeb51e1e 1941 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 1942 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1943 }
AzureIoTClient 12:658ca6865de2 1944 /* 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 1945 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 1946 {
AzureIoTClient 11:31ebaeb51e1e 1947 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 1948 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1949 }
AzureIoTClient 11:31ebaeb51e1e 1950 else
AzureIoTClient 11:31ebaeb51e1e 1951 {
AzureIoTClient 11:31ebaeb51e1e 1952 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
Azure.IoT.Build 13:606465879c57 1953 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 1954 {
AzureIoTClient 11:31ebaeb51e1e 1955 result->get_io_transport = get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 1956 }
AzureIoTClient 11:31ebaeb51e1e 1957 }
AzureIoTClient 12:658ca6865de2 1958 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 1959 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 1960 return result;
AzureIoTClient 11:31ebaeb51e1e 1961 }
AzureIoTClient 11:31ebaeb51e1e 1962
AzureIoTClient 11:31ebaeb51e1e 1963 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1964 {
AzureIoTClient 11:31ebaeb51e1e 1965 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1966 xio_destroy(transport_data->xioTransport);
AzureIoTClient 11:31ebaeb51e1e 1967 transport_data->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1968
AzureIoTClient 11:31ebaeb51e1e 1969 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1970 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1971 }
AzureIoTClient 11:31ebaeb51e1e 1972
AzureIoTClient 11:31ebaeb51e1e 1973 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 1974 {
AzureIoTClient 12:658ca6865de2 1975 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1976 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 1977 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 1978 {
AzureIoTClient 11:31ebaeb51e1e 1979 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 1980
AzureIoTClient 11:31ebaeb51e1e 1981 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 1982
AzureIoTClient 11:31ebaeb51e1e 1983 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 1984 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 1985 {
AzureIoTClient 11:31ebaeb51e1e 1986 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 1987 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1988 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 1989 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1990 }
AzureIoTClient 12:658ca6865de2 1991 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 1992 {
AzureIoTClient 12:658ca6865de2 1993 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 1994 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1995 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 1996 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 1997 }
AzureIoTClient 11:31ebaeb51e1e 1998
AzureIoTClient 11:31ebaeb51e1e 1999 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 2000 {
AzureIoTClient 11:31ebaeb51e1e 2001 case SAS_TOKEN_FROM_USER:
AzureIoTClient 11:31ebaeb51e1e 2002 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 2003 break;
AzureIoTClient 11:31ebaeb51e1e 2004 case DEVICE_KEY:
AzureIoTClient 11:31ebaeb51e1e 2005 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 2006 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 2007 break;
AzureIoTClient 11:31ebaeb51e1e 2008 case X509:
AzureIoTClient 11:31ebaeb51e1e 2009 default:
AzureIoTClient 11:31ebaeb51e1e 2010 break;
AzureIoTClient 11:31ebaeb51e1e 2011 }
AzureIoTClient 11:31ebaeb51e1e 2012
AzureIoTClient 12:658ca6865de2 2013 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 2014 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2015 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 2016 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2017 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 2018 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 2019 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 2020 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2021 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2022 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2023
Azure.IoT.Build 13:606465879c57 2024 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 2025 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 11:31ebaeb51e1e 2026 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2027 }
AzureIoTClient 11:31ebaeb51e1e 2028 }
AzureIoTClient 11:31ebaeb51e1e 2029
AzureIoTClient 12:658ca6865de2 2030 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2031 {
AzureIoTClient 12:658ca6865de2 2032 int result;
AzureIoTClient 12:658ca6865de2 2033 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2034 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2035 {
AzureIoTClient 12:658ca6865de2 2036 /* 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 2037 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 2038 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2039 }
AzureIoTClient 12:658ca6865de2 2040 else
AzureIoTClient 12:658ca6865de2 2041 {
AzureIoTClient 12:658ca6865de2 2042 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2043 {
AzureIoTClient 12:658ca6865de2 2044 /* 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 2045 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2046 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2047 {
AzureIoTClient 12:658ca6865de2 2048 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2049 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 12:658ca6865de2 2050 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2051 }
AzureIoTClient 12:658ca6865de2 2052 else
AzureIoTClient 12:658ca6865de2 2053 {
AzureIoTClient 12:658ca6865de2 2054 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2055 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2056 result = 0;
AzureIoTClient 12:658ca6865de2 2057 }
AzureIoTClient 12:658ca6865de2 2058 }
AzureIoTClient 12:658ca6865de2 2059 else
AzureIoTClient 12:658ca6865de2 2060 {
AzureIoTClient 12:658ca6865de2 2061 result = 0;
AzureIoTClient 12:658ca6865de2 2062 }
AzureIoTClient 12:658ca6865de2 2063 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2064 {
AzureIoTClient 12:658ca6865de2 2065 /* 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 2066 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2067 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2068 {
AzureIoTClient 12:658ca6865de2 2069 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 12:658ca6865de2 2070 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2071 }
AzureIoTClient 12:658ca6865de2 2072 else
AzureIoTClient 12:658ca6865de2 2073 {
AzureIoTClient 12:658ca6865de2 2074 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2075 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2076 result = 0;
AzureIoTClient 12:658ca6865de2 2077 }
AzureIoTClient 12:658ca6865de2 2078 }
AzureIoTClient 12:658ca6865de2 2079 if (result == 0)
AzureIoTClient 12:658ca6865de2 2080 {
AzureIoTClient 12:658ca6865de2 2081 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2082 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2083 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2084 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2085 {
AzureIoTClient 12:658ca6865de2 2086 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2087 }
AzureIoTClient 12:658ca6865de2 2088 }
AzureIoTClient 12:658ca6865de2 2089 }
AzureIoTClient 12:658ca6865de2 2090 return result;
AzureIoTClient 12:658ca6865de2 2091 }
AzureIoTClient 12:658ca6865de2 2092
AzureIoTClient 12:658ca6865de2 2093 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2094 {
AzureIoTClient 12:658ca6865de2 2095 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2096 /* 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 2097 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2098 {
AzureIoTClient 12:658ca6865de2 2099 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2100 {
AzureIoTClient 12:658ca6865de2 2101 /* 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 2102 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2103 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2104 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2105 }
AzureIoTClient 12:658ca6865de2 2106 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2107 {
AzureIoTClient 12:658ca6865de2 2108 /* 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 2109 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2110 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2111 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2112 }
AzureIoTClient 12:658ca6865de2 2113 }
AzureIoTClient 12:658ca6865de2 2114 else
AzureIoTClient 12:658ca6865de2 2115 {
AzureIoTClient 12:658ca6865de2 2116 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2117 }
AzureIoTClient 12:658ca6865de2 2118 }
AzureIoTClient 12:658ca6865de2 2119
AzureIoTClient 12:658ca6865de2 2120 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2121 {
AzureIoTClient 12:658ca6865de2 2122 int result;
AzureIoTClient 12:658ca6865de2 2123 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2124
AzureIoTClient 12:658ca6865de2 2125 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2126 {
AzureIoTClient 12:658ca6865de2 2127 /*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 2128 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 12:658ca6865de2 2129 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2130 }
AzureIoTClient 12:658ca6865de2 2131 else
AzureIoTClient 12:658ca6865de2 2132 {
AzureIoTClient 12:658ca6865de2 2133 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2134 {
AzureIoTClient 12:658ca6865de2 2135 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2136 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2137 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2138 {
AzureIoTClient 12:658ca6865de2 2139 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2140 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 12:658ca6865de2 2141 result = __LINE__;
AzureIoTClient 12:658ca6865de2 2142 }
AzureIoTClient 12:658ca6865de2 2143 else
AzureIoTClient 12:658ca6865de2 2144 {
AzureIoTClient 12:658ca6865de2 2145 /*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 2146 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2147 result = 0;
AzureIoTClient 12:658ca6865de2 2148 }
AzureIoTClient 12:658ca6865de2 2149 }
AzureIoTClient 12:658ca6865de2 2150 else
AzureIoTClient 12:658ca6865de2 2151 {
AzureIoTClient 12:658ca6865de2 2152 /*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 2153 result = 0;
AzureIoTClient 12:658ca6865de2 2154 }
AzureIoTClient 12:658ca6865de2 2155
AzureIoTClient 12:658ca6865de2 2156 if (result == 0)
AzureIoTClient 12:658ca6865de2 2157 {
AzureIoTClient 12:658ca6865de2 2158 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2159 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2160 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2161 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2162 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2163 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2164 {
AzureIoTClient 12:658ca6865de2 2165 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2166 }
AzureIoTClient 12:658ca6865de2 2167 }
AzureIoTClient 12:658ca6865de2 2168 }
AzureIoTClient 12:658ca6865de2 2169 return result;
AzureIoTClient 12:658ca6865de2 2170 }
AzureIoTClient 12:658ca6865de2 2171
AzureIoTClient 12:658ca6865de2 2172 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2173 {
AzureIoTClient 12:658ca6865de2 2174 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2175 /*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 2176 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2177 {
AzureIoTClient 12:658ca6865de2 2178 /*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 2179 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2180 {
AzureIoTClient 12:658ca6865de2 2181 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2182 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2183 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2184
AzureIoTClient 12:658ca6865de2 2185 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2186 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2187 {
AzureIoTClient 12:658ca6865de2 2188 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2189 }
AzureIoTClient 12:658ca6865de2 2190
AzureIoTClient 12:658ca6865de2 2191 /*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 2192 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2193 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2194 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2195 }
AzureIoTClient 12:658ca6865de2 2196 }
AzureIoTClient 12:658ca6865de2 2197 else
AzureIoTClient 12:658ca6865de2 2198 {
AzureIoTClient 12:658ca6865de2 2199 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2200 }
AzureIoTClient 12:658ca6865de2 2201 }
AzureIoTClient 12:658ca6865de2 2202
AzureIoTClient 14:4dc2b011be33 2203 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 2204 {
AzureIoTClient 14:4dc2b011be33 2205 int result;
AzureIoTClient 14:4dc2b011be33 2206 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 14:4dc2b011be33 2207 if (transport_data != NULL)
AzureIoTClient 14:4dc2b011be33 2208 {
AzureIoTClient 14:4dc2b011be33 2209 /* 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 2210 DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
AzureIoTClient 14:4dc2b011be33 2211 if (dev_method_info == NULL)
AzureIoTClient 14:4dc2b011be33 2212 {
AzureIoTClient 14:4dc2b011be33 2213 LogError("Failure: DEVICE_METHOD_INFO was NULL");
AzureIoTClient 14:4dc2b011be33 2214 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2215 }
AzureIoTClient 14:4dc2b011be33 2216 else
AzureIoTClient 14:4dc2b011be33 2217 {
AzureIoTClient 14:4dc2b011be33 2218 if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
AzureIoTClient 14:4dc2b011be33 2219 {
AzureIoTClient 14:4dc2b011be33 2220 /* 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 2221 LogError("Failure: publishing device method response");
AzureIoTClient 14:4dc2b011be33 2222 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2223 }
AzureIoTClient 14:4dc2b011be33 2224 else
AzureIoTClient 14:4dc2b011be33 2225 {
AzureIoTClient 14:4dc2b011be33 2226 result = 0;
AzureIoTClient 14:4dc2b011be33 2227 }
AzureIoTClient 14:4dc2b011be33 2228 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 2229 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 2230 }
AzureIoTClient 14:4dc2b011be33 2231 }
AzureIoTClient 14:4dc2b011be33 2232 else
AzureIoTClient 14:4dc2b011be33 2233 {
AzureIoTClient 14:4dc2b011be33 2234 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ If the parameter handle is NULL than IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 14:4dc2b011be33 2235 result = __LINE__;
AzureIoTClient 14:4dc2b011be33 2236 LogError("Failure: invalid IOTHUB_DEVICE_HANDLE parameter specified");
AzureIoTClient 14:4dc2b011be33 2237 }
AzureIoTClient 14:4dc2b011be33 2238 return result;
AzureIoTClient 14:4dc2b011be33 2239 }
AzureIoTClient 14:4dc2b011be33 2240
AzureIoTClient 11:31ebaeb51e1e 2241 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2242 {
AzureIoTClient 11:31ebaeb51e1e 2243 int result;
AzureIoTClient 11:31ebaeb51e1e 2244 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2245 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2246 {
AzureIoTClient 12:658ca6865de2 2247 /* 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 2248 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 11:31ebaeb51e1e 2249 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2250 }
AzureIoTClient 11:31ebaeb51e1e 2251 else
AzureIoTClient 11:31ebaeb51e1e 2252 {
AzureIoTClient 12:658ca6865de2 2253 /* 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 2254 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2255 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2256 {
AzureIoTClient 11:31ebaeb51e1e 2257 LogError("Failure constructing Message Topic");
AzureIoTClient 11:31ebaeb51e1e 2258 result = __LINE__;
AzureIoTClient 11:31ebaeb51e1e 2259 }
AzureIoTClient 11:31ebaeb51e1e 2260 else
AzureIoTClient 11:31ebaeb51e1e 2261 {
AzureIoTClient 11:31ebaeb51e1e 2262 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2263 /* 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 2264 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2265 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2266 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2267 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2268 {
AzureIoTClient 11:31ebaeb51e1e 2269 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2270 }
AzureIoTClient 11:31ebaeb51e1e 2271 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2272 }
AzureIoTClient 11:31ebaeb51e1e 2273 }
AzureIoTClient 11:31ebaeb51e1e 2274 return result;
AzureIoTClient 11:31ebaeb51e1e 2275 }
AzureIoTClient 11:31ebaeb51e1e 2276
AzureIoTClient 11:31ebaeb51e1e 2277 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2278 {
AzureIoTClient 11:31ebaeb51e1e 2279 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2280 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2281 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2282 {
AzureIoTClient 12:658ca6865de2 2283 /* 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 2284 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2285 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2286 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2287 {
AzureIoTClient 11:31ebaeb51e1e 2288 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2289 }
AzureIoTClient 11:31ebaeb51e1e 2290 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2291 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2292 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2293 }
AzureIoTClient 11:31ebaeb51e1e 2294 else
AzureIoTClient 11:31ebaeb51e1e 2295 {
AzureIoTClient 11:31ebaeb51e1e 2296 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2297 }
AzureIoTClient 11:31ebaeb51e1e 2298 }
AzureIoTClient 11:31ebaeb51e1e 2299
AzureIoTClient 12:658ca6865de2 2300 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 2301 {
AzureIoTClient 12:658ca6865de2 2302 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2303 /* 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 2304 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2305 {
AzureIoTClient 12:658ca6865de2 2306 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2307 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2308 }
AzureIoTClient 12:658ca6865de2 2309 else
AzureIoTClient 12:658ca6865de2 2310 {
AzureIoTClient 12:658ca6865de2 2311 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2312
AzureIoTClient 12:658ca6865de2 2313 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2314 {
AzureIoTClient 12:658ca6865de2 2315 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2316 {
AzureIoTClient 12:658ca6865de2 2317 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2318 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2319 {
AzureIoTClient 12:658ca6865de2 2320 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2321 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2322 }
AzureIoTClient 12:658ca6865de2 2323 else
AzureIoTClient 12:658ca6865de2 2324 {
AzureIoTClient 12:658ca6865de2 2325 /*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 2326 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2327 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2328 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2329
AzureIoTClient 12:658ca6865de2 2330 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2331 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2332
AzureIoTClient 12:658ca6865de2 2333 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2334 {
AzureIoTClient 12:658ca6865de2 2335 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2336
AzureIoTClient 12:658ca6865de2 2337 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2338 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2339 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2340 }
AzureIoTClient 12:658ca6865de2 2341 else
AzureIoTClient 12:658ca6865de2 2342 {
AzureIoTClient 12:658ca6865de2 2343 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2344 }
AzureIoTClient 12:658ca6865de2 2345 }
AzureIoTClient 12:658ca6865de2 2346 }
AzureIoTClient 12:658ca6865de2 2347 else
AzureIoTClient 12:658ca6865de2 2348 {
AzureIoTClient 12:658ca6865de2 2349 /* 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 2350 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2351 }
AzureIoTClient 12:658ca6865de2 2352 }
AzureIoTClient 12:658ca6865de2 2353 else
AzureIoTClient 12:658ca6865de2 2354 {
AzureIoTClient 12:658ca6865de2 2355 /* 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 2356 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2357 }
AzureIoTClient 12:658ca6865de2 2358 }
AzureIoTClient 12:658ca6865de2 2359 return result;
AzureIoTClient 12:658ca6865de2 2360 }
AzureIoTClient 12:658ca6865de2 2361
AzureIoTClient 12:658ca6865de2 2362 /* 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 2363 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2364 {
AzureIoTClient 12:658ca6865de2 2365 /* 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 2366 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2367 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2368 {
AzureIoTClient 11:31ebaeb51e1e 2369 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2370
AzureIoTClient 11:31ebaeb51e1e 2371 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2372 {
AzureIoTClient 11:31ebaeb51e1e 2373 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2374 }
AzureIoTClient 11:31ebaeb51e1e 2375 else
AzureIoTClient 11:31ebaeb51e1e 2376 {
AzureIoTClient 11:31ebaeb51e1e 2377 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2378 {
AzureIoTClient 11:31ebaeb51e1e 2379 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2380 }
AzureIoTClient 11:31ebaeb51e1e 2381 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2382 {
AzureIoTClient 12:658ca6865de2 2383 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2384 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2385 {
AzureIoTClient 12:658ca6865de2 2386 /* 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 2387 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2388 {
AzureIoTClient 12:658ca6865de2 2389 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2390 }
AzureIoTClient 12:658ca6865de2 2391 else
AzureIoTClient 12:658ca6865de2 2392 {
AzureIoTClient 12:658ca6865de2 2393 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2394 }
AzureIoTClient 12:658ca6865de2 2395 }
AzureIoTClient 11:31ebaeb51e1e 2396 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2397 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2398 }
AzureIoTClient 11:31ebaeb51e1e 2399 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2400 {
AzureIoTClient 11:31ebaeb51e1e 2401 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2402 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2403 {
AzureIoTClient 11:31ebaeb51e1e 2404 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2405 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2406 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2407
Azure.IoT.Build 13:606465879c57 2408 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2409 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2410 /* 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 2411 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2412 {
AzureIoTClient 12:658ca6865de2 2413 /* 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 2414 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2415 {
AzureIoTClient 11:31ebaeb51e1e 2416 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2417 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2418 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2419 }
AzureIoTClient 11:31ebaeb51e1e 2420 else
AzureIoTClient 11:31ebaeb51e1e 2421 {
AzureIoTClient 11:31ebaeb51e1e 2422 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2423 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2424 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2425 {
AzureIoTClient 11:31ebaeb51e1e 2426 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2427 }
AzureIoTClient 11:31ebaeb51e1e 2428 else
AzureIoTClient 11:31ebaeb51e1e 2429 {
AzureIoTClient 11:31ebaeb51e1e 2430 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2431 {
AzureIoTClient 11:31ebaeb51e1e 2432 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2433 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2434 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2435 }
AzureIoTClient 11:31ebaeb51e1e 2436 }
AzureIoTClient 11:31ebaeb51e1e 2437 }
AzureIoTClient 11:31ebaeb51e1e 2438 }
AzureIoTClient 11:31ebaeb51e1e 2439 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2440 }
AzureIoTClient 11:31ebaeb51e1e 2441
AzureIoTClient 11:31ebaeb51e1e 2442 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2443 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2444 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2445 {
AzureIoTClient 11:31ebaeb51e1e 2446 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2447 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2448 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2449
AzureIoTClient 12:658ca6865de2 2450 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2451 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2452 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2453 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2454 {
AzureIoTClient 11:31ebaeb51e1e 2455 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2456 }
AzureIoTClient 11:31ebaeb51e1e 2457 else
AzureIoTClient 11:31ebaeb51e1e 2458 {
AzureIoTClient 12:658ca6865de2 2459 /* 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 2460 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2461 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2462 {
AzureIoTClient 11:31ebaeb51e1e 2463 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2464 }
AzureIoTClient 11:31ebaeb51e1e 2465 else
AzureIoTClient 11:31ebaeb51e1e 2466 {
AzureIoTClient 11:31ebaeb51e1e 2467 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2468 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2469 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2470 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2471 {
AzureIoTClient 11:31ebaeb51e1e 2472 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2473 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2474 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2475 }
AzureIoTClient 11:31ebaeb51e1e 2476 else
AzureIoTClient 11:31ebaeb51e1e 2477 {
AzureIoTClient 11:31ebaeb51e1e 2478 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2479 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2480 }
AzureIoTClient 11:31ebaeb51e1e 2481 }
AzureIoTClient 11:31ebaeb51e1e 2482 }
AzureIoTClient 11:31ebaeb51e1e 2483 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2484 }
AzureIoTClient 11:31ebaeb51e1e 2485 }
AzureIoTClient 12:658ca6865de2 2486 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransport_MQTT_Common_DoWork shall call mqtt_client_dowork everytime it is called if it is isConnected.] */
AzureIoTClient 11:31ebaeb51e1e 2487 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2488 }
AzureIoTClient 11:31ebaeb51e1e 2489 }
AzureIoTClient 11:31ebaeb51e1e 2490 }
AzureIoTClient 11:31ebaeb51e1e 2491
AzureIoTClient 11:31ebaeb51e1e 2492 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2493 {
AzureIoTClient 11:31ebaeb51e1e 2494 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2495
AzureIoTClient 11:31ebaeb51e1e 2496 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2497 {
AzureIoTClient 12:658ca6865de2 2498 /* 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 2499 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2500 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2501 }
AzureIoTClient 11:31ebaeb51e1e 2502 else
AzureIoTClient 11:31ebaeb51e1e 2503 {
AzureIoTClient 11:31ebaeb51e1e 2504 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2505 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2506 {
AzureIoTClient 12:658ca6865de2 2507 /* 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 2508 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2509 }
AzureIoTClient 11:31ebaeb51e1e 2510 else
AzureIoTClient 11:31ebaeb51e1e 2511 {
AzureIoTClient 12:658ca6865de2 2512 /* 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 2513 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2514 }
AzureIoTClient 11:31ebaeb51e1e 2515 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2516 }
AzureIoTClient 11:31ebaeb51e1e 2517 return result;
AzureIoTClient 11:31ebaeb51e1e 2518 }
AzureIoTClient 11:31ebaeb51e1e 2519
AzureIoTClient 11:31ebaeb51e1e 2520 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2521 {
AzureIoTClient 12:658ca6865de2 2522 /* 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 2523 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2524 if (
AzureIoTClient 11:31ebaeb51e1e 2525 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2526 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2527 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2528 )
AzureIoTClient 11:31ebaeb51e1e 2529 {
AzureIoTClient 11:31ebaeb51e1e 2530 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2531 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2532 }
AzureIoTClient 11:31ebaeb51e1e 2533 else
AzureIoTClient 11:31ebaeb51e1e 2534 {
AzureIoTClient 11:31ebaeb51e1e 2535 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2536 /* 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 2537 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2538 {
AzureIoTClient 11:31ebaeb51e1e 2539 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2540 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2541 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2542 }
AzureIoTClient 11:31ebaeb51e1e 2543 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2544 {
AzureIoTClient 11:31ebaeb51e1e 2545 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2546 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2547 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2548 }
AzureIoTClient 11:31ebaeb51e1e 2549 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2550 {
AzureIoTClient 11:31ebaeb51e1e 2551 /* 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 2552 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2553 /* 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 2554 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2555 {
AzureIoTClient 11:31ebaeb51e1e 2556 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 11:31ebaeb51e1e 2557 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 2558 {
AzureIoTClient 12:658ca6865de2 2559 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is isConnected when the keepalive is set then IoTHubTransport_MQTT_Common_SetOption shall disconnect and reconnect with the specified keepalive value.] */
AzureIoTClient 11:31ebaeb51e1e 2560 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2561 }
AzureIoTClient 11:31ebaeb51e1e 2562 }
AzureIoTClient 11:31ebaeb51e1e 2563 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2564 }
AzureIoTClient 11:31ebaeb51e1e 2565 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 11:31ebaeb51e1e 2566 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2567 {
AzureIoTClient 11:31ebaeb51e1e 2568 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2569 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2570 }
AzureIoTClient 11:31ebaeb51e1e 2571 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_040: [If the option parameter is set to "x509privatekey" then the value shall be a const char of the RSA Private Key to be used for x509.] */
AzureIoTClient 11:31ebaeb51e1e 2572 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2573 {
AzureIoTClient 11:31ebaeb51e1e 2574 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2575 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2576 }
AzureIoTClient 11:31ebaeb51e1e 2577 else
AzureIoTClient 11:31ebaeb51e1e 2578 {
AzureIoTClient 12:658ca6865de2 2579 /* 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 2580 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2581 {
AzureIoTClient 11:31ebaeb51e1e 2582 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2583 {
AzureIoTClient 11:31ebaeb51e1e 2584 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2585 }
AzureIoTClient 11:31ebaeb51e1e 2586 else
AzureIoTClient 11:31ebaeb51e1e 2587 {
AzureIoTClient 12:658ca6865de2 2588 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2589 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2590 }
AzureIoTClient 11:31ebaeb51e1e 2591 }
AzureIoTClient 11:31ebaeb51e1e 2592 else
AzureIoTClient 11:31ebaeb51e1e 2593 {
AzureIoTClient 11:31ebaeb51e1e 2594 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2595 }
AzureIoTClient 11:31ebaeb51e1e 2596 }
AzureIoTClient 11:31ebaeb51e1e 2597 }
AzureIoTClient 11:31ebaeb51e1e 2598 return result;
AzureIoTClient 11:31ebaeb51e1e 2599 }
AzureIoTClient 11:31ebaeb51e1e 2600
AzureIoTClient 11:31ebaeb51e1e 2601 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 2602 {
AzureIoTClient 11:31ebaeb51e1e 2603 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2604 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2605
AzureIoTClient 12:658ca6865de2 2606 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2607 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2608 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2609 {
AzureIoTClient 12:658ca6865de2 2610 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2611 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2612 }
AzureIoTClient 11:31ebaeb51e1e 2613 else
AzureIoTClient 11:31ebaeb51e1e 2614 {
AzureIoTClient 11:31ebaeb51e1e 2615 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2616
AzureIoTClient 12:658ca6865de2 2617 // 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 2618 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2619 {
AzureIoTClient 12:658ca6865de2 2620 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2621 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2622 }
AzureIoTClient 12:658ca6865de2 2623 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2624 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2625 {
AzureIoTClient 12:658ca6865de2 2626 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2627 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2628 }
AzureIoTClient 11:31ebaeb51e1e 2629 else
AzureIoTClient 11:31ebaeb51e1e 2630 {
AzureIoTClient 12:658ca6865de2 2631 // 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 2632 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2633 {
AzureIoTClient 12:658ca6865de2 2634 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2635 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2636 }
AzureIoTClient 11:31ebaeb51e1e 2637 else if ( (transport_data->transport_creds.credential_type == DEVICE_KEY) && (strcmp(STRING_c_str(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey), device->deviceKey) != 0))
AzureIoTClient 11:31ebaeb51e1e 2638 {
AzureIoTClient 12:658ca6865de2 2639 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2640 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2641 }
AzureIoTClient 11:31ebaeb51e1e 2642 else
AzureIoTClient 11:31ebaeb51e1e 2643 {
AzureIoTClient 11:31ebaeb51e1e 2644 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2645 {
AzureIoTClient 11:31ebaeb51e1e 2646 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2647 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2648 }
AzureIoTClient 11:31ebaeb51e1e 2649 else
AzureIoTClient 11:31ebaeb51e1e 2650 {
AzureIoTClient 11:31ebaeb51e1e 2651 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2652 // 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 2653 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2654 }
AzureIoTClient 11:31ebaeb51e1e 2655 }
AzureIoTClient 11:31ebaeb51e1e 2656 }
AzureIoTClient 11:31ebaeb51e1e 2657 }
AzureIoTClient 11:31ebaeb51e1e 2658
AzureIoTClient 11:31ebaeb51e1e 2659 return result;
AzureIoTClient 11:31ebaeb51e1e 2660 }
AzureIoTClient 11:31ebaeb51e1e 2661
AzureIoTClient 11:31ebaeb51e1e 2662 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2663 {
AzureIoTClient 14:4dc2b011be33 2664 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
AzureIoTClient 11:31ebaeb51e1e 2665 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2666 {
AzureIoTClient 11:31ebaeb51e1e 2667 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2668
AzureIoTClient 11:31ebaeb51e1e 2669 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2670 }
AzureIoTClient 11:31ebaeb51e1e 2671 }
AzureIoTClient 11:31ebaeb51e1e 2672
AzureIoTClient 11:31ebaeb51e1e 2673 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2674 {
AzureIoTClient 11:31ebaeb51e1e 2675 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2676 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2677 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2678 {
AzureIoTClient 11:31ebaeb51e1e 2679 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2680 }
AzureIoTClient 11:31ebaeb51e1e 2681 else
AzureIoTClient 11:31ebaeb51e1e 2682 {
AzureIoTClient 12:658ca6865de2 2683 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_002: [ Otherwise IoTHubTransport_MQTT_Common_GetHostname shall return a non-NULL STRING_HANDLE containg the hostname. ]*/
AzureIoTClient 11:31ebaeb51e1e 2684 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 11:31ebaeb51e1e 2685 }
AzureIoTClient 11:31ebaeb51e1e 2686 return result;
AzureIoTClient 11:31ebaeb51e1e 2687 }