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@19:f87dfe76bc70, 2017-03-10 (annotated)

Committer:
AzureIoTClient
Date:
Fri Mar 10 11:47:21 2017 -0800
Revision:
19:f87dfe76bc70
Parent:
18:ec8e5e97c6a4
Child:
20:594780be216d
1.1.9

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 11:31ebaeb51e1e 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 11:31ebaeb51e1e 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 11:31ebaeb51e1e 3
AzureIoTClient 11:31ebaeb51e1e 4 #include <stdlib.h>
AzureIoTClient 12:658ca6865de2 5 #include <ctype.h>
AzureIoTClient 18:ec8e5e97c6a4 6 #include "azure_c_shared_utility/optimize_size.h"
AzureIoTClient 11:31ebaeb51e1e 7 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 11:31ebaeb51e1e 8
AzureIoTClient 11:31ebaeb51e1e 9 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 11:31ebaeb51e1e 10 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 11:31ebaeb51e1e 11 #include "azure_c_shared_utility/doublylinkedlist.h"
AzureIoTClient 11:31ebaeb51e1e 12 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 11:31ebaeb51e1e 13
AzureIoTClient 11:31ebaeb51e1e 14 #include "iothub_client_ll.h"
AzureIoTClient 11:31ebaeb51e1e 15 #include "iothub_client_options.h"
AzureIoTClient 11:31ebaeb51e1e 16 #include "iothub_client_private.h"
AzureIoTClient 11:31ebaeb51e1e 17 #include "azure_umqtt_c/mqtt_client.h"
AzureIoTClient 11:31ebaeb51e1e 18 #include "azure_c_shared_utility/sastoken.h"
AzureIoTClient 11:31ebaeb51e1e 19 #include "azure_c_shared_utility/tickcounter.h"
AzureIoTClient 11:31ebaeb51e1e 20
AzureIoTClient 11:31ebaeb51e1e 21 #include "azure_c_shared_utility/tlsio.h"
AzureIoTClient 11:31ebaeb51e1e 22 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 11:31ebaeb51e1e 23
AzureIoTClient 11:31ebaeb51e1e 24 #include "azure_c_shared_utility/string_tokenizer.h"
AzureIoTClient 11:31ebaeb51e1e 25 #include "iothub_client_version.h"
AzureIoTClient 11:31ebaeb51e1e 26
AzureIoTClient 11:31ebaeb51e1e 27 #include "iothubtransport_mqtt_common.h"
AzureIoTClient 11:31ebaeb51e1e 28
AzureIoTClient 11:31ebaeb51e1e 29 #include <stdarg.h>
AzureIoTClient 11:31ebaeb51e1e 30 #include <stdio.h>
AzureIoTClient 11:31ebaeb51e1e 31
AzureIoTClient 11:31ebaeb51e1e 32 #include <limits.h>
AzureIoTClient 12:658ca6865de2 33 #include <inttypes.h>
AzureIoTClient 11:31ebaeb51e1e 34
AzureIoTClient 11:31ebaeb51e1e 35 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 11:31ebaeb51e1e 36 #define SAS_REFRESH_MULTIPLIER .8
AzureIoTClient 11:31ebaeb51e1e 37 #define EPOCH_TIME_T_VALUE 0
AzureIoTClient 11:31ebaeb51e1e 38 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
AzureIoTClient 11:31ebaeb51e1e 39 #define BUILD_CONFIG_USERNAME 24
AzureIoTClient 11:31ebaeb51e1e 40 #define SAS_TOKEN_DEFAULT_LEN 10
AzureIoTClient 11:31ebaeb51e1e 41 #define RESEND_TIMEOUT_VALUE_MIN 1*60
AzureIoTClient 11:31ebaeb51e1e 42 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 11:31ebaeb51e1e 43 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 11:31ebaeb51e1e 44 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 12:658ca6865de2 45 #define STATUS_CODE_FAILURE_VALUE 500
AzureIoTClient 12:658ca6865de2 46 #define STATUS_CODE_TIMEOUT_VALUE 408
AzureIoTClient 17:774695cb8554 47 #define ERROR_TIME_FOR_RETRY_SECS 5 // We won't retry more than once every 5 seconds
AzureIoTClient 12:658ca6865de2 48
AzureIoTClient 12:658ca6865de2 49 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 50 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 51
AzureIoTClient 12:658ca6865de2 52 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 53 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 54
AzureIoTClient 11:31ebaeb51e1e 55 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 56 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 57
AzureIoTClient 12:658ca6865de2 58 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 59 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 60
AzureIoTClient 12:658ca6865de2 61 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 62
AzureIoTClient 11:31ebaeb51e1e 63 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 64 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 65 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 14:4dc2b011be33 66 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
AzureIoTClient 12:658ca6865de2 67
AzureIoTClient 12:658ca6865de2 68 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 69
AzureIoTClient 18:ec8e5e97c6a4 70 static const char* MESSAGE_ID_PROPERTY = "mid";
AzureIoTClient 18:ec8e5e97c6a4 71 static const char* CORRELATION_ID_PROPERTY = "cid";
AzureIoTClient 18:ec8e5e97c6a4 72
AzureIoTClient 11:31ebaeb51e1e 73 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 74 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 75 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 76 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 77 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 78 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 79 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 80
AzureIoTClient 17:774695cb8554 81 DEFINE_ENUM_STRINGS(MQTT_CLIENT_EVENT_ERROR, MQTT_CLIENT_EVENT_ERROR_VALUES)
AzureIoTClient 17:774695cb8554 82
AzureIoTClient 11:31ebaeb51e1e 83 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 84 {
AzureIoTClient 11:31ebaeb51e1e 85 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 86 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 87 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 88
AzureIoTClient 11:31ebaeb51e1e 89 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 90 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 91 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 92 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 93 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 94 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 95 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 96 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 97 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 98 };
AzureIoTClient 11:31ebaeb51e1e 99
AzureIoTClient 12:658ca6865de2 100 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 101 {
AzureIoTClient 12:658ca6865de2 102 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 103 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 104 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 105
AzureIoTClient 11:31ebaeb51e1e 106 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 107 {
AzureIoTClient 11:31ebaeb51e1e 108 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 109 X509,
AzureIoTClient 11:31ebaeb51e1e 110 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 111 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 112 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 113
AzureIoTClient 12:658ca6865de2 114 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 115
AzureIoTClient 12:658ca6865de2 116 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 117 {
AzureIoTClient 17:774695cb8554 118 IOTHUB_CLIENT_RETRY_POLICY retryPolicy; // Type of policy we're using
AzureIoTClient 17:774695cb8554 119 size_t retryTimeoutLimitInSeconds; // If we don't connect in this many seconds, give up even trying.
AzureIoTClient 17:774695cb8554 120 RETRY_POLICY fnRetryPolicy; // Pointer to the policy function
AzureIoTClient 17:774695cb8554 121 time_t start; // When did we start retrying?
AzureIoTClient 17:774695cb8554 122 time_t lastConnect; // When did we last try to connect?
AzureIoTClient 17:774695cb8554 123 bool retryStarted; // true if the retry timer is set and we're trying to retry
AzureIoTClient 17:774695cb8554 124 bool retryExpired; // true if we haven't connected in retryTimeoutLimitInSeconds seconds
AzureIoTClient 17:774695cb8554 125 bool firstAttempt; // true on init so we can connect the first time without waiting for any timeouts.
AzureIoTClient 17:774695cb8554 126 size_t retrycount; // How many times have we tried connecting?
AzureIoTClient 17:774695cb8554 127 size_t delayFromLastConnectToRetry; // last time delta betweewn retry attempts.
AzureIoTClient 12:658ca6865de2 128 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 129
AzureIoTClient 11:31ebaeb51e1e 130 typedef struct MQTT_TRANSPORT_CREDENTIALS_TAG
AzureIoTClient 11:31ebaeb51e1e 131 {
AzureIoTClient 11:31ebaeb51e1e 132 MQTT_TRANSPORT_CREDENTIAL_TYPE credential_type;
AzureIoTClient 11:31ebaeb51e1e 133 union
AzureIoTClient 11:31ebaeb51e1e 134 {
AzureIoTClient 11:31ebaeb51e1e 135 // Key associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 136 STRING_HANDLE deviceKey;
AzureIoTClient 11:31ebaeb51e1e 137
AzureIoTClient 11:31ebaeb51e1e 138 // SAS associated to the device to be used.
AzureIoTClient 11:31ebaeb51e1e 139 STRING_HANDLE deviceSasToken;
AzureIoTClient 11:31ebaeb51e1e 140
AzureIoTClient 11:31ebaeb51e1e 141 } CREDENTIAL_VALUE;
AzureIoTClient 11:31ebaeb51e1e 142 } MQTT_TRANSPORT_CREDENTIALS;
AzureIoTClient 11:31ebaeb51e1e 143
AzureIoTClient 11:31ebaeb51e1e 144 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 145 {
AzureIoTClient 11:31ebaeb51e1e 146 // Topic control
AzureIoTClient 11:31ebaeb51e1e 147 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 148 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 149 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 150 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 151
AzureIoTClient 12:658ca6865de2 152 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 153
AzureIoTClient 11:31ebaeb51e1e 154 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 155
AzureIoTClient 11:31ebaeb51e1e 156 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 157 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 158 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 159 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 160 int portNum;
AzureIoTClient 11:31ebaeb51e1e 161
AzureIoTClient 11:31ebaeb51e1e 162 // Authentication
AzureIoTClient 11:31ebaeb51e1e 163 MQTT_TRANSPORT_CREDENTIALS transport_creds;
AzureIoTClient 11:31ebaeb51e1e 164
AzureIoTClient 11:31ebaeb51e1e 165 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 166
AzureIoTClient 11:31ebaeb51e1e 167 // 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 168 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 169 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 170 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 171 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 172 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 173 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 174
AzureIoTClient 11:31ebaeb51e1e 175 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 176 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 177
AzureIoTClient 11:31ebaeb51e1e 178 // Protocol
AzureIoTClient 11:31ebaeb51e1e 179 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 180 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 181
AzureIoTClient 11:31ebaeb51e1e 182 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 183 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 184
AzureIoTClient 11:31ebaeb51e1e 185 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 186 bool isRegistered;
AzureIoTClient 11:31ebaeb51e1e 187 bool isConnected;
AzureIoTClient 11:31ebaeb51e1e 188 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 189 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 190 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 191 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 192 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 193 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 194 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 195 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 196 bool raw_trace;
Azure.IoT.Build 13:606465879c57 197 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 198
AzureIoTClient 11:31ebaeb51e1e 199 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 200 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 201 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 202
AzureIoTClient 11:31ebaeb51e1e 203 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 204 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 205
AzureIoTClient 11:31ebaeb51e1e 206 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 207 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 208
AzureIoTClient 12:658ca6865de2 209 //Retry Logic
AzureIoTClient 12:658ca6865de2 210 RETRY_LOGIC* retryLogic;
AzureIoTClient 11:31ebaeb51e1e 211 } MQTTTRANSPORT_HANDLE_DATA, *PMQTTTRANSPORT_HANDLE_DATA;
AzureIoTClient 11:31ebaeb51e1e 212
AzureIoTClient 12:658ca6865de2 213 typedef struct MQTT_DEVICE_TWIN_ITEM_TAG
AzureIoTClient 12:658ca6865de2 214 {
Azure.IoT.Build 13:606465879c57 215 tickcounter_ms_t msgPublishTime;
AzureIoTClient 12:658ca6865de2 216 size_t retryCount;
AzureIoTClient 12:658ca6865de2 217 IOTHUB_IDENTITY_TYPE iothub_type;
AzureIoTClient 12:658ca6865de2 218 uint16_t packet_id;
AzureIoTClient 12:658ca6865de2 219 uint32_t iothub_msg_id;
AzureIoTClient 12:658ca6865de2 220 IOTHUB_DEVICE_TWIN* device_twin_data;
AzureIoTClient 12:658ca6865de2 221 DEVICE_TWIN_MSG_TYPE device_twin_msg_type;
AzureIoTClient 12:658ca6865de2 222 DLIST_ENTRY entry;
AzureIoTClient 12:658ca6865de2 223 } MQTT_DEVICE_TWIN_ITEM;
AzureIoTClient 12:658ca6865de2 224
AzureIoTClient 11:31ebaeb51e1e 225 typedef struct MQTT_MESSAGE_DETAILS_LIST_TAG
AzureIoTClient 11:31ebaeb51e1e 226 {
Azure.IoT.Build 13:606465879c57 227 tickcounter_ms_t msgPublishTime;
AzureIoTClient 11:31ebaeb51e1e 228 size_t retryCount;
AzureIoTClient 11:31ebaeb51e1e 229 IOTHUB_MESSAGE_LIST* iotHubMessageEntry;
AzureIoTClient 11:31ebaeb51e1e 230 void* context;
AzureIoTClient 11:31ebaeb51e1e 231 uint16_t packet_id;
AzureIoTClient 11:31ebaeb51e1e 232 DLIST_ENTRY entry;
AzureIoTClient 11:31ebaeb51e1e 233 } MQTT_MESSAGE_DETAILS_LIST, *PMQTT_MESSAGE_DETAILS_LIST;
AzureIoTClient 11:31ebaeb51e1e 234
AzureIoTClient 14:4dc2b011be33 235 typedef struct DEVICE_METHOD_INFO_TAG
AzureIoTClient 14:4dc2b011be33 236 {
AzureIoTClient 14:4dc2b011be33 237 STRING_HANDLE request_id;
AzureIoTClient 14:4dc2b011be33 238 } DEVICE_METHOD_INFO;
AzureIoTClient 14:4dc2b011be33 239
AzureIoTClient 12:658ca6865de2 240 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 241 {
AzureIoTClient 12:658ca6865de2 242 int result;
AzureIoTClient 12:658ca6865de2 243
AzureIoTClient 12:658ca6865de2 244 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 245 {
AzureIoTClient 12:658ca6865de2 246 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 247 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 248 *permit = true;
AzureIoTClient 12:658ca6865de2 249
AzureIoTClient 12:658ca6865de2 250 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 251
AzureIoTClient 12:658ca6865de2 252 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 253 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 254 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 255 */
AzureIoTClient 12:658ca6865de2 256
AzureIoTClient 12:658ca6865de2 257 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 258 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 259 {
AzureIoTClient 12:658ca6865de2 260 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 261 }
AzureIoTClient 12:658ca6865de2 262 else
AzureIoTClient 12:658ca6865de2 263 {
AzureIoTClient 12:658ca6865de2 264 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 265 }
AzureIoTClient 12:658ca6865de2 266
AzureIoTClient 12:658ca6865de2 267 result = 0;
AzureIoTClient 12:658ca6865de2 268 }
AzureIoTClient 12:658ca6865de2 269 else
AzureIoTClient 12:658ca6865de2 270 {
AzureIoTClient 18:ec8e5e97c6a4 271 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 272 }
AzureIoTClient 12:658ca6865de2 273 return result;
AzureIoTClient 12:658ca6865de2 274 }
AzureIoTClient 12:658ca6865de2 275
AzureIoTClient 12:658ca6865de2 276 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 277 {
AzureIoTClient 12:658ca6865de2 278 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 279 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 280 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 281 {
AzureIoTClient 12:658ca6865de2 282 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 283 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 284 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 285 {
AzureIoTClient 12:658ca6865de2 286 case IOTHUB_CLIENT_RETRY_NONE:
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_IMMEDIATE:
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_INTERVAL:
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_LINEAR_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_EXPONENTIAL_BACKOFF:
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_RANDOM:
AzureIoTClient 12:658ca6865de2 307 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 308 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 309 break;
AzureIoTClient 12:658ca6865de2 310 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 311 default:
AzureIoTClient 12:658ca6865de2 312 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 313 break;
AzureIoTClient 12:658ca6865de2 314 }
AzureIoTClient 12:658ca6865de2 315 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 316 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 317 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 318 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 319 retryLogic->retryExpired = false;
AzureIoTClient 17:774695cb8554 320 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 321 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 322 }
AzureIoTClient 12:658ca6865de2 323 else
AzureIoTClient 12:658ca6865de2 324 {
AzureIoTClient 12:658ca6865de2 325 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 326 }
AzureIoTClient 12:658ca6865de2 327 return retryLogic;
AzureIoTClient 12:658ca6865de2 328 }
AzureIoTClient 12:658ca6865de2 329
AzureIoTClient 12:658ca6865de2 330 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 331 {
AzureIoTClient 12:658ca6865de2 332 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 333 {
AzureIoTClient 12:658ca6865de2 334 free(retryLogic);
AzureIoTClient 12:658ca6865de2 335 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 336 }
AzureIoTClient 12:658ca6865de2 337 }
AzureIoTClient 12:658ca6865de2 338
AzureIoTClient 12:658ca6865de2 339 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 340 static void StartRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 341 {
AzureIoTClient 12:658ca6865de2 342 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 343 {
AzureIoTClient 12:658ca6865de2 344 if (retryLogic->retryStarted == false)
AzureIoTClient 12:658ca6865de2 345 {
AzureIoTClient 12:658ca6865de2 346 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 347 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 348 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 349 }
AzureIoTClient 12:658ca6865de2 350
AzureIoTClient 17:774695cb8554 351 retryLogic->firstAttempt = false
AzureIoTClient 17:774695cb8554 352 ;
AzureIoTClient 12:658ca6865de2 353 }
AzureIoTClient 12:658ca6865de2 354 else
AzureIoTClient 12:658ca6865de2 355 {
AzureIoTClient 12:658ca6865de2 356 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 357 }
AzureIoTClient 12:658ca6865de2 358 }
AzureIoTClient 12:658ca6865de2 359
AzureIoTClient 12:658ca6865de2 360 // Called when connected
AzureIoTClient 12:658ca6865de2 361 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 362 {
AzureIoTClient 12:658ca6865de2 363 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 364 {
AzureIoTClient 12:658ca6865de2 365 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 366 {
AzureIoTClient 12:658ca6865de2 367 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 368 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 369 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 370 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 371 }
AzureIoTClient 12:658ca6865de2 372 else
AzureIoTClient 12:658ca6865de2 373 {
AzureIoTClient 12:658ca6865de2 374 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 375 }
AzureIoTClient 12:658ca6865de2 376 }
AzureIoTClient 12:658ca6865de2 377 else
AzureIoTClient 12:658ca6865de2 378 {
AzureIoTClient 12:658ca6865de2 379 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 380 }
AzureIoTClient 12:658ca6865de2 381 }
AzureIoTClient 12:658ca6865de2 382
AzureIoTClient 12:658ca6865de2 383 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 384 {
AzureIoTClient 12:658ca6865de2 385 int result;
AzureIoTClient 12:658ca6865de2 386 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 387 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 388 {
AzureIoTClient 12:658ca6865de2 389 /* 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 390 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 391 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 392 }
AzureIoTClient 12:658ca6865de2 393 else
AzureIoTClient 12:658ca6865de2 394 {
AzureIoTClient 12:658ca6865de2 395 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 396 {
AzureIoTClient 12:658ca6865de2 397 /*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 398 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 399 }
AzureIoTClient 12:658ca6865de2 400 else
AzureIoTClient 12:658ca6865de2 401 {
AzureIoTClient 12:658ca6865de2 402 /*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 403 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 404 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 405 }
AzureIoTClient 12:658ca6865de2 406
AzureIoTClient 12:658ca6865de2 407 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 408 {
AzureIoTClient 12:658ca6865de2 409 /*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 410 result = 0;
AzureIoTClient 12:658ca6865de2 411 }
AzureIoTClient 12:658ca6865de2 412 else
AzureIoTClient 12:658ca6865de2 413 {
AzureIoTClient 12:658ca6865de2 414 /*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 415 LogError("Retry Logic is not created");
AzureIoTClient 18:ec8e5e97c6a4 416 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 417 }
AzureIoTClient 12:658ca6865de2 418 }
AzureIoTClient 12:658ca6865de2 419 return result;
AzureIoTClient 12:658ca6865de2 420 }
AzureIoTClient 12:658ca6865de2 421
AzureIoTClient 12:658ca6865de2 422 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 423 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 424 {
AzureIoTClient 12:658ca6865de2 425 bool result;
AzureIoTClient 12:658ca6865de2 426 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 427
AzureIoTClient 12:658ca6865de2 428 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 429 {
AzureIoTClient 12:658ca6865de2 430 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 431 result = true;
AzureIoTClient 12:658ca6865de2 432 }
AzureIoTClient 17:774695cb8554 433 else if (now < 0 || retryLogic->start < 0)
AzureIoTClient 12:658ca6865de2 434 {
AzureIoTClient 12:658ca6865de2 435 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 436 result = true;
AzureIoTClient 12:658ca6865de2 437 }
AzureIoTClient 12:658ca6865de2 438 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 439 {
AzureIoTClient 17:774695cb8554 440 // We've given up trying to retry. Don't do anything.
AzureIoTClient 12:658ca6865de2 441 result = false;
AzureIoTClient 12:658ca6865de2 442 }
AzureIoTClient 17:774695cb8554 443 else if (retryLogic->firstAttempt)
AzureIoTClient 12:658ca6865de2 444 {
AzureIoTClient 17:774695cb8554 445 // This is the first time ever running through this code. We need to try connecting no matter what.
AzureIoTClient 12:658ca6865de2 446 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 447 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 448 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 449 result = true;
AzureIoTClient 12:658ca6865de2 450 }
AzureIoTClient 12:658ca6865de2 451 else
AzureIoTClient 12:658ca6865de2 452 {
AzureIoTClient 17:774695cb8554 453 // Are we trying to retry?
AzureIoTClient 12:658ca6865de2 454 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 455 {
AzureIoTClient 17:774695cb8554 456 // How long since we last tried to connect? Store this in difftime.
AzureIoTClient 12:658ca6865de2 457 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 17:774695cb8554 458
AzureIoTClient 17:774695cb8554 459 // Has it been less than 5 seconds since we tried last? If so, we have to
AzureIoTClient 17:774695cb8554 460 // be careful so we don't hit the server too quickly.
AzureIoTClient 12:658ca6865de2 461 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 462 {
AzureIoTClient 17:774695cb8554 463 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 17:774695cb8554 464 result = false;
AzureIoTClient 12:658ca6865de2 465 }
AzureIoTClient 12:658ca6865de2 466 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 467 {
AzureIoTClient 17:774695cb8554 468 // delayFromLastConnectionToRetry is either 0 (the first time around)
AzureIoTClient 17:774695cb8554 469 // or it's the backoff delta from the last time through the loop.
AzureIoTClient 17:774695cb8554 470 // If we're less than that, don't even bother trying. It's
AzureIoTClient 12:658ca6865de2 471 // Too early to retry
AzureIoTClient 12:658ca6865de2 472 result = false;
AzureIoTClient 12:658ca6865de2 473 }
AzureIoTClient 12:658ca6865de2 474 else
AzureIoTClient 12:658ca6865de2 475 {
AzureIoTClient 12:658ca6865de2 476 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 17:774695cb8554 477 // In other words, it migth be time to retry, so we should validate with the retry policy function.
AzureIoTClient 12:658ca6865de2 478 bool permit = false;
AzureIoTClient 12:658ca6865de2 479 size_t delay;
AzureIoTClient 12:658ca6865de2 480
AzureIoTClient 12:658ca6865de2 481 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 482 {
AzureIoTClient 17:774695cb8554 483 // Does the policy function want us to retry (permit == true), or are we still allowed to retry?
AzureIoTClient 17:774695cb8554 484 // (in other words, are we within retryTimeoutLimitInSeconds seconds since starting to retry?)
AzureIoTClient 17:774695cb8554 485 // If so, see if we _really_ want to retry.
AzureIoTClient 12:658ca6865de2 486 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 487 {
AzureIoTClient 12:658ca6865de2 488 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 489
AzureIoTClient 12:658ca6865de2 490 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 491
AzureIoTClient 17:774695cb8554 492 // If the retry policy is telling us to connect right away ( <= ERROR_TIME_FOR_RETRY_SECS),
AzureIoTClient 17:774695cb8554 493 // or if enough time has elapsed, then we retry.
AzureIoTClient 17:774695cb8554 494 if ((retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS) ||
AzureIoTClient 17:774695cb8554 495 (diffTime >= retryLogic->delayFromLastConnectToRetry))
AzureIoTClient 12:658ca6865de2 496 {
AzureIoTClient 12:658ca6865de2 497 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 498 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 499 result = true;
AzureIoTClient 12:658ca6865de2 500 }
AzureIoTClient 12:658ca6865de2 501 else
AzureIoTClient 12:658ca6865de2 502 {
AzureIoTClient 17:774695cb8554 503 // To soon to retry according to policy.
AzureIoTClient 12:658ca6865de2 504 result = false;
AzureIoTClient 12:658ca6865de2 505 }
AzureIoTClient 12:658ca6865de2 506 }
AzureIoTClient 12:658ca6865de2 507 else
AzureIoTClient 12:658ca6865de2 508 {
AzureIoTClient 17:774695cb8554 509 // Retry expired. Stop trying.
AzureIoTClient 12:658ca6865de2 510 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 511 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 512 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 513 result = false;
AzureIoTClient 12:658ca6865de2 514 }
AzureIoTClient 12:658ca6865de2 515 }
AzureIoTClient 12:658ca6865de2 516 else
AzureIoTClient 12:658ca6865de2 517 {
AzureIoTClient 17:774695cb8554 518 // We don't have a retry policy. Sorry, can't even guess. Don't bother even trying to retry.
AzureIoTClient 12:658ca6865de2 519 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 520 result = false;
AzureIoTClient 12:658ca6865de2 521 }
AzureIoTClient 12:658ca6865de2 522 }
AzureIoTClient 12:658ca6865de2 523 }
AzureIoTClient 12:658ca6865de2 524 else
AzureIoTClient 12:658ca6865de2 525 {
AzureIoTClient 17:774695cb8554 526 // Since this function is only called when the connection is
AzureIoTClient 17:774695cb8554 527 // already broken, we can start doing the rety logic. We'll do the
AzureIoTClient 17:774695cb8554 528 // actual interval checking next time around this loop.
AzureIoTClient 12:658ca6865de2 529 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 530 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 531 result = false;
AzureIoTClient 12:658ca6865de2 532 }
AzureIoTClient 12:658ca6865de2 533 }
AzureIoTClient 12:658ca6865de2 534 return result;
AzureIoTClient 12:658ca6865de2 535 }
AzureIoTClient 12:658ca6865de2 536
AzureIoTClient 12:658ca6865de2 537
AzureIoTClient 11:31ebaeb51e1e 538 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 539 {
AzureIoTClient 11:31ebaeb51e1e 540 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 541 {
AzureIoTClient 11:31ebaeb51e1e 542 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 543 }
AzureIoTClient 11:31ebaeb51e1e 544 else
AzureIoTClient 11:31ebaeb51e1e 545 {
AzureIoTClient 11:31ebaeb51e1e 546 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 547 }
AzureIoTClient 11:31ebaeb51e1e 548 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 549 }
AzureIoTClient 11:31ebaeb51e1e 550
AzureIoTClient 11:31ebaeb51e1e 551 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 552 {
AzureIoTClient 11:31ebaeb51e1e 553 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 554 {
AzureIoTClient 11:31ebaeb51e1e 555 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 556 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 557 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 558 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 559 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 560 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 561 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 562 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 563 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 564 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 565 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 566 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 567 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 568 default:
AzureIoTClient 11:31ebaeb51e1e 569 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 570 }
AzureIoTClient 11:31ebaeb51e1e 571 }
AzureIoTClient 11:31ebaeb51e1e 572
AzureIoTClient 14:4dc2b011be33 573 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
AzureIoTClient 12:658ca6865de2 574 {
AzureIoTClient 12:658ca6865de2 575 int result;
AzureIoTClient 12:658ca6865de2 576 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 577 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 578 {
AzureIoTClient 12:658ca6865de2 579 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 580 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 581 }
AzureIoTClient 12:658ca6865de2 582 else
AzureIoTClient 12:658ca6865de2 583 {
AzureIoTClient 12:658ca6865de2 584 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 585 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 586 {
AzureIoTClient 12:658ca6865de2 587 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 588 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 589 }
AzureIoTClient 12:658ca6865de2 590 else
AzureIoTClient 12:658ca6865de2 591 {
AzureIoTClient 12:658ca6865de2 592 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 593 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 18:ec8e5e97c6a4 594 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 595 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 596 {
AzureIoTClient 12:658ca6865de2 597 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 598 {
AzureIoTClient 12:658ca6865de2 599 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 600 {
AzureIoTClient 14:4dc2b011be33 601 LogError("Failed STRING_concat_with_STRING.");
AzureIoTClient 18:ec8e5e97c6a4 602 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 603 break;
AzureIoTClient 12:658ca6865de2 604 }
AzureIoTClient 12:658ca6865de2 605 }
AzureIoTClient 12:658ca6865de2 606 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 607 {
AzureIoTClient 12:658ca6865de2 608 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 609 {
AzureIoTClient 12:658ca6865de2 610 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 611 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 612 {
AzureIoTClient 14:4dc2b011be33 613 if (STRING_concat(request_id, request_id_value+request_id_length) != 0)
AzureIoTClient 14:4dc2b011be33 614 {
AzureIoTClient 14:4dc2b011be33 615 LogError("Failed STRING_concat failed.");
AzureIoTClient 18:ec8e5e97c6a4 616 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 617 }
AzureIoTClient 14:4dc2b011be33 618 else
AzureIoTClient 14:4dc2b011be33 619 {
AzureIoTClient 14:4dc2b011be33 620 result = 0;
AzureIoTClient 14:4dc2b011be33 621 }
AzureIoTClient 12:658ca6865de2 622 break;
AzureIoTClient 12:658ca6865de2 623 }
AzureIoTClient 12:658ca6865de2 624 }
AzureIoTClient 12:658ca6865de2 625 }
AzureIoTClient 12:658ca6865de2 626 token_index++;
AzureIoTClient 12:658ca6865de2 627 }
AzureIoTClient 12:658ca6865de2 628 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 629 }
AzureIoTClient 12:658ca6865de2 630 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 631 }
AzureIoTClient 12:658ca6865de2 632 return result;
AzureIoTClient 12:658ca6865de2 633 }
AzureIoTClient 12:658ca6865de2 634
AzureIoTClient 12:658ca6865de2 635 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 636 {
AzureIoTClient 12:658ca6865de2 637 int result;
AzureIoTClient 12:658ca6865de2 638 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 639 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 640 {
AzureIoTClient 12:658ca6865de2 641 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 642 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 643 *status_code = 0;
AzureIoTClient 12:658ca6865de2 644 *request_id = 0;
AzureIoTClient 12:658ca6865de2 645 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 646 }
AzureIoTClient 12:658ca6865de2 647 else
AzureIoTClient 12:658ca6865de2 648 {
AzureIoTClient 12:658ca6865de2 649 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 650 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 651 {
AzureIoTClient 12:658ca6865de2 652 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 653 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 654 *status_code = 0;
AzureIoTClient 12:658ca6865de2 655 *request_id = 0;
AzureIoTClient 12:658ca6865de2 656 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 657 }
AzureIoTClient 12:658ca6865de2 658 else
AzureIoTClient 12:658ca6865de2 659 {
AzureIoTClient 18:ec8e5e97c6a4 660 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 661 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 662 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 663 {
AzureIoTClient 12:658ca6865de2 664 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 665 {
AzureIoTClient 12:658ca6865de2 666 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 667 {
AzureIoTClient 12:658ca6865de2 668 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 669 *status_code = 0;
AzureIoTClient 12:658ca6865de2 670 *request_id = 0;
AzureIoTClient 12:658ca6865de2 671 result = 0;
AzureIoTClient 12:658ca6865de2 672 break;
AzureIoTClient 12:658ca6865de2 673 }
AzureIoTClient 12:658ca6865de2 674 else
AzureIoTClient 12:658ca6865de2 675 {
AzureIoTClient 12:658ca6865de2 676 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 677 }
AzureIoTClient 12:658ca6865de2 678 }
AzureIoTClient 12:658ca6865de2 679 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 680 {
AzureIoTClient 12:658ca6865de2 681 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 682 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 683 {
AzureIoTClient 12:658ca6865de2 684 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 685 }
AzureIoTClient 12:658ca6865de2 686 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 687 result = 0;
AzureIoTClient 12:658ca6865de2 688 break;
AzureIoTClient 12:658ca6865de2 689 }
AzureIoTClient 12:658ca6865de2 690 token_count++;
AzureIoTClient 12:658ca6865de2 691 }
AzureIoTClient 12:658ca6865de2 692 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 693 }
AzureIoTClient 12:658ca6865de2 694 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 695 }
AzureIoTClient 12:658ca6865de2 696 return result;
AzureIoTClient 12:658ca6865de2 697 }
AzureIoTClient 12:658ca6865de2 698
AzureIoTClient 12:658ca6865de2 699 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 700 {
AzureIoTClient 12:658ca6865de2 701 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 702 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 703 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 704 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 705 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 706
AzureIoTClient 12:658ca6865de2 707 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 708 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 709 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 710 {
AzureIoTClient 12:658ca6865de2 711 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 712 search_device_method = false;
AzureIoTClient 12:658ca6865de2 713 }
AzureIoTClient 12:658ca6865de2 714 else
AzureIoTClient 12:658ca6865de2 715 {
AzureIoTClient 16:14640ee83e99 716 size_t index = 0;
AzureIoTClient 16:14640ee83e99 717 for (index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 718 {
AzureIoTClient 12:658ca6865de2 719 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 720 {
AzureIoTClient 12:658ca6865de2 721 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 722 {
AzureIoTClient 12:658ca6865de2 723 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 724 }
AzureIoTClient 12:658ca6865de2 725 else
AzureIoTClient 12:658ca6865de2 726 {
AzureIoTClient 12:658ca6865de2 727 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 728 {
AzureIoTClient 12:658ca6865de2 729 break;
AzureIoTClient 12:658ca6865de2 730 }
AzureIoTClient 14:4dc2b011be33 731 else if (TOUPPER(TOPIC_DEVICE_TWIN_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 732 {
AzureIoTClient 12:658ca6865de2 733 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 734 }
AzureIoTClient 12:658ca6865de2 735 }
AzureIoTClient 12:658ca6865de2 736 }
AzureIoTClient 12:658ca6865de2 737 if (search_device_method)
AzureIoTClient 12:658ca6865de2 738 {
AzureIoTClient 12:658ca6865de2 739 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 740 {
AzureIoTClient 12:658ca6865de2 741 search_device_method = false;
AzureIoTClient 12:658ca6865de2 742 }
AzureIoTClient 12:658ca6865de2 743 else
AzureIoTClient 12:658ca6865de2 744 {
AzureIoTClient 12:658ca6865de2 745 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 746 {
AzureIoTClient 12:658ca6865de2 747 break;
AzureIoTClient 12:658ca6865de2 748 }
AzureIoTClient 14:4dc2b011be33 749 else if (TOUPPER(TOPIC_DEVICE_METHOD_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 750 {
AzureIoTClient 12:658ca6865de2 751 search_device_method = false;
AzureIoTClient 12:658ca6865de2 752 }
AzureIoTClient 12:658ca6865de2 753 }
AzureIoTClient 12:658ca6865de2 754 }
AzureIoTClient 12:658ca6865de2 755 }
AzureIoTClient 12:658ca6865de2 756 }
AzureIoTClient 12:658ca6865de2 757 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 758 {
AzureIoTClient 12:658ca6865de2 759 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 760 }
AzureIoTClient 12:658ca6865de2 761 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 762 {
AzureIoTClient 12:658ca6865de2 763 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 764 }
AzureIoTClient 12:658ca6865de2 765 else
AzureIoTClient 12:658ca6865de2 766 {
AzureIoTClient 12:658ca6865de2 767 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 768 }
AzureIoTClient 12:658ca6865de2 769 return type;
AzureIoTClient 12:658ca6865de2 770 }
AzureIoTClient 12:658ca6865de2 771
AzureIoTClient 11:31ebaeb51e1e 772 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 773 {
AzureIoTClient 11:31ebaeb51e1e 774 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 775 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 776 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 777 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 778 }
AzureIoTClient 11:31ebaeb51e1e 779
AzureIoTClient 11:31ebaeb51e1e 780 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 781 {
AzureIoTClient 11:31ebaeb51e1e 782 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 783 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 784 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 785 size_t propertyCount;
AzureIoTClient 11:31ebaeb51e1e 786
AzureIoTClient 11:31ebaeb51e1e 787 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 788 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 789 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 790 {
AzureIoTClient 11:31ebaeb51e1e 791 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 792 {
AzureIoTClient 11:31ebaeb51e1e 793 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 794 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 795 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 796 }
AzureIoTClient 11:31ebaeb51e1e 797 else
AzureIoTClient 11:31ebaeb51e1e 798 {
AzureIoTClient 11:31ebaeb51e1e 799 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 800 {
AzureIoTClient 16:14640ee83e99 801 size_t index = 0;
AzureIoTClient 16:14640ee83e99 802 for (index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 803 {
AzureIoTClient 11:31ebaeb51e1e 804 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 805 {
AzureIoTClient 11:31ebaeb51e1e 806 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 807 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 808 }
AzureIoTClient 11:31ebaeb51e1e 809 }
AzureIoTClient 11:31ebaeb51e1e 810 }
AzureIoTClient 11:31ebaeb51e1e 811 }
AzureIoTClient 11:31ebaeb51e1e 812 }
AzureIoTClient 11:31ebaeb51e1e 813 return result;
AzureIoTClient 11:31ebaeb51e1e 814 }
AzureIoTClient 11:31ebaeb51e1e 815
AzureIoTClient 11:31ebaeb51e1e 816 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 817 {
AzureIoTClient 11:31ebaeb51e1e 818 int result;
AzureIoTClient 11:31ebaeb51e1e 819 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 820 if (msgTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 821 {
AzureIoTClient 18:ec8e5e97c6a4 822 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 823 }
AzureIoTClient 11:31ebaeb51e1e 824 else
AzureIoTClient 11:31ebaeb51e1e 825 {
AzureIoTClient 11:31ebaeb51e1e 826 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 827 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 828 {
AzureIoTClient 18:ec8e5e97c6a4 829 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 830 }
AzureIoTClient 11:31ebaeb51e1e 831 else
AzureIoTClient 11:31ebaeb51e1e 832 {
Azure.IoT.Build 13:606465879c57 833 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 834 {
AzureIoTClient 11:31ebaeb51e1e 835 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 836 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 837 }
AzureIoTClient 11:31ebaeb51e1e 838 else
AzureIoTClient 11:31ebaeb51e1e 839 {
AzureIoTClient 11:31ebaeb51e1e 840 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 841 {
AzureIoTClient 18:ec8e5e97c6a4 842 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 843 }
AzureIoTClient 11:31ebaeb51e1e 844 else
AzureIoTClient 11:31ebaeb51e1e 845 {
AzureIoTClient 11:31ebaeb51e1e 846 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 847 result = 0;
AzureIoTClient 11:31ebaeb51e1e 848 }
AzureIoTClient 11:31ebaeb51e1e 849 }
AzureIoTClient 11:31ebaeb51e1e 850 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 851 }
AzureIoTClient 11:31ebaeb51e1e 852 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 853 }
AzureIoTClient 11:31ebaeb51e1e 854 return result;
AzureIoTClient 11:31ebaeb51e1e 855 }
AzureIoTClient 11:31ebaeb51e1e 856
AzureIoTClient 14:4dc2b011be33 857 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 858 {
AzureIoTClient 12:658ca6865de2 859 int result;
AzureIoTClient 12:658ca6865de2 860 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 861
AzureIoTClient 14:4dc2b011be33 862 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id) );
AzureIoTClient 12:658ca6865de2 863 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 864 {
AzureIoTClient 12:658ca6865de2 865 LogError("Failed constructing message topic.");
AzureIoTClient 18:ec8e5e97c6a4 866 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 867 }
AzureIoTClient 12:658ca6865de2 868 else
AzureIoTClient 12:658ca6865de2 869 {
AzureIoTClient 14:4dc2b011be33 870 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 871 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 872 {
AzureIoTClient 12:658ca6865de2 873 LogError("Failed constructing mqtt message.");
AzureIoTClient 18:ec8e5e97c6a4 874 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 875 }
AzureIoTClient 12:658ca6865de2 876 else
AzureIoTClient 12:658ca6865de2 877 {
AzureIoTClient 12:658ca6865de2 878 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 879 {
AzureIoTClient 12:658ca6865de2 880 LogError("Failed publishing to mqtt client.");
AzureIoTClient 18:ec8e5e97c6a4 881 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 882 }
AzureIoTClient 12:658ca6865de2 883 else
AzureIoTClient 12:658ca6865de2 884 {
AzureIoTClient 12:658ca6865de2 885 result = 0;
AzureIoTClient 12:658ca6865de2 886 }
AzureIoTClient 12:658ca6865de2 887 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 888 }
AzureIoTClient 12:658ca6865de2 889 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 890 }
AzureIoTClient 12:658ca6865de2 891 return result;
AzureIoTClient 12:658ca6865de2 892 }
AzureIoTClient 12:658ca6865de2 893
AzureIoTClient 12:658ca6865de2 894 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 895 {
AzureIoTClient 12:658ca6865de2 896 int result;
AzureIoTClient 12:658ca6865de2 897 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 898 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 899 {
AzureIoTClient 12:658ca6865de2 900 LogError("Failed allocating device twin data.");
AzureIoTClient 18:ec8e5e97c6a4 901 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 902 }
AzureIoTClient 12:658ca6865de2 903 else
AzureIoTClient 12:658ca6865de2 904 {
AzureIoTClient 12:658ca6865de2 905 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 906 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 907 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 908 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 909 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 910 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 911 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 912 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 913 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 914 {
AzureIoTClient 12:658ca6865de2 915 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 916 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 917 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 918 }
AzureIoTClient 12:658ca6865de2 919 else
AzureIoTClient 12:658ca6865de2 920 {
AzureIoTClient 12:658ca6865de2 921 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 922 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 923 {
AzureIoTClient 12:658ca6865de2 924 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 925 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 926 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 927 }
AzureIoTClient 12:658ca6865de2 928 else
AzureIoTClient 12:658ca6865de2 929 {
AzureIoTClient 12:658ca6865de2 930 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 931 {
AzureIoTClient 12:658ca6865de2 932 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 933 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 934 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 935 }
AzureIoTClient 12:658ca6865de2 936 else
AzureIoTClient 12:658ca6865de2 937 {
AzureIoTClient 12:658ca6865de2 938 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 939 result = 0;
AzureIoTClient 12:658ca6865de2 940 }
AzureIoTClient 12:658ca6865de2 941 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 942 }
AzureIoTClient 12:658ca6865de2 943 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 944 }
AzureIoTClient 12:658ca6865de2 945 }
AzureIoTClient 12:658ca6865de2 946 return result;
AzureIoTClient 12:658ca6865de2 947 }
AzureIoTClient 12:658ca6865de2 948
AzureIoTClient 12:658ca6865de2 949 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 950 {
AzureIoTClient 12:658ca6865de2 951 int result;
AzureIoTClient 12:658ca6865de2 952 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 953 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 954 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 955 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 956 {
AzureIoTClient 12:658ca6865de2 957 LogError("Failed constructing reported prop topic.");
AzureIoTClient 18:ec8e5e97c6a4 958 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 959 }
AzureIoTClient 12:658ca6865de2 960 else
AzureIoTClient 12:658ca6865de2 961 {
AzureIoTClient 12:658ca6865de2 962 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 963 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 964 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 965 {
AzureIoTClient 12:658ca6865de2 966 LogError("Failed creating mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 967 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 968 }
AzureIoTClient 12:658ca6865de2 969 else
AzureIoTClient 12:658ca6865de2 970 {
Azure.IoT.Build 13:606465879c57 971 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 972 {
AzureIoTClient 12:658ca6865de2 973 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 974 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 975 }
AzureIoTClient 12:658ca6865de2 976 else
AzureIoTClient 12:658ca6865de2 977 {
AzureIoTClient 12:658ca6865de2 978 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 979 {
AzureIoTClient 12:658ca6865de2 980 LogError("Failed publishing mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 981 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 982 }
AzureIoTClient 12:658ca6865de2 983 else
AzureIoTClient 12:658ca6865de2 984 {
AzureIoTClient 12:658ca6865de2 985 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 986 result = 0;
AzureIoTClient 12:658ca6865de2 987 }
AzureIoTClient 12:658ca6865de2 988 }
AzureIoTClient 12:658ca6865de2 989 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 990 }
AzureIoTClient 12:658ca6865de2 991 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 992 }
AzureIoTClient 12:658ca6865de2 993 return result;
AzureIoTClient 12:658ca6865de2 994 }
AzureIoTClient 12:658ca6865de2 995
AzureIoTClient 11:31ebaeb51e1e 996 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 997 {
AzureIoTClient 11:31ebaeb51e1e 998 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 999 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 16:14640ee83e99 1000 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1001 for (index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1002 {
AzureIoTClient 11:31ebaeb51e1e 1003 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 1004 {
AzureIoTClient 11:31ebaeb51e1e 1005 result = true;
AzureIoTClient 11:31ebaeb51e1e 1006 break;
AzureIoTClient 11:31ebaeb51e1e 1007 }
AzureIoTClient 11:31ebaeb51e1e 1008 }
AzureIoTClient 11:31ebaeb51e1e 1009 return result;
AzureIoTClient 11:31ebaeb51e1e 1010 }
AzureIoTClient 11:31ebaeb51e1e 1011
AzureIoTClient 11:31ebaeb51e1e 1012 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 1013 {
AzureIoTClient 11:31ebaeb51e1e 1014 int result;
AzureIoTClient 11:31ebaeb51e1e 1015 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 1016 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 1017 {
AzureIoTClient 11:31ebaeb51e1e 1018 LogError("Failure constructing string topic name.");
AzureIoTClient 18:ec8e5e97c6a4 1019 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1020 }
AzureIoTClient 11:31ebaeb51e1e 1021 else
AzureIoTClient 11:31ebaeb51e1e 1022 {
AzureIoTClient 11:31ebaeb51e1e 1023 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1024 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1025 {
AzureIoTClient 11:31ebaeb51e1e 1026 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1027 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1028 {
AzureIoTClient 11:31ebaeb51e1e 1029 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 18:ec8e5e97c6a4 1030 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1031 }
AzureIoTClient 11:31ebaeb51e1e 1032 else
AzureIoTClient 11:31ebaeb51e1e 1033 {
AzureIoTClient 11:31ebaeb51e1e 1034 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1035 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1036 {
AzureIoTClient 11:31ebaeb51e1e 1037 LogError("Failure to allocate STRING_new.");
AzureIoTClient 18:ec8e5e97c6a4 1038 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1039 }
AzureIoTClient 11:31ebaeb51e1e 1040 else
AzureIoTClient 11:31ebaeb51e1e 1041 {
AzureIoTClient 11:31ebaeb51e1e 1042 result = 0;
AzureIoTClient 18:ec8e5e97c6a4 1043
AzureIoTClient 11:31ebaeb51e1e 1044 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1045 {
AzureIoTClient 11:31ebaeb51e1e 1046 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1047 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1048 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1049 {
AzureIoTClient 11:31ebaeb51e1e 1050 break;
AzureIoTClient 11:31ebaeb51e1e 1051 }
AzureIoTClient 11:31ebaeb51e1e 1052 else
AzureIoTClient 11:31ebaeb51e1e 1053 {
AzureIoTClient 18:ec8e5e97c6a4 1054 if (isSystemProperty(tokenData))
AzureIoTClient 11:31ebaeb51e1e 1055 {
AzureIoTClient 11:31ebaeb51e1e 1056 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1057 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1058 {
AzureIoTClient 11:31ebaeb51e1e 1059 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1060 {
AzureIoTClient 11:31ebaeb51e1e 1061 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1062 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1063
AzureIoTClient 11:31ebaeb51e1e 1064 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1065 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1066
AzureIoTClient 11:31ebaeb51e1e 1067 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1068 {
AzureIoTClient 18:ec8e5e97c6a4 1069 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1070 }
AzureIoTClient 18:ec8e5e97c6a4 1071 else
AzureIoTClient 18:ec8e5e97c6a4 1072 {
AzureIoTClient 18:ec8e5e97c6a4 1073 strncpy(propName, tokenData, nameLen);
AzureIoTClient 18:ec8e5e97c6a4 1074 propName[nameLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1075
AzureIoTClient 18:ec8e5e97c6a4 1076 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 18:ec8e5e97c6a4 1077 propValue[valLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1078
AzureIoTClient 18:ec8e5e97c6a4 1079 if (nameLen > 3)
AzureIoTClient 18:ec8e5e97c6a4 1080 {
AzureIoTClient 18:ec8e5e97c6a4 1081 if (strcmp((const char*)&propName[nameLen - 3], MESSAGE_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1082 {
AzureIoTClient 18:ec8e5e97c6a4 1083 if (IoTHubMessage_SetMessageId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1084 {
AzureIoTClient 18:ec8e5e97c6a4 1085 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'messageId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1086 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1087 }
AzureIoTClient 18:ec8e5e97c6a4 1088 }
AzureIoTClient 18:ec8e5e97c6a4 1089
AzureIoTClient 18:ec8e5e97c6a4 1090 if (strcmp((const char*)&propName[nameLen - 3], CORRELATION_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1091 {
AzureIoTClient 18:ec8e5e97c6a4 1092 if (IoTHubMessage_SetCorrelationId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1093 {
AzureIoTClient 18:ec8e5e97c6a4 1094 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'correlationId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1095 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1096 }
AzureIoTClient 18:ec8e5e97c6a4 1097 }
AzureIoTClient 18:ec8e5e97c6a4 1098 }
AzureIoTClient 18:ec8e5e97c6a4 1099 }
AzureIoTClient 18:ec8e5e97c6a4 1100 free(propName);
AzureIoTClient 18:ec8e5e97c6a4 1101 free(propValue);
AzureIoTClient 18:ec8e5e97c6a4 1102
AzureIoTClient 18:ec8e5e97c6a4 1103 break;
AzureIoTClient 18:ec8e5e97c6a4 1104 }
AzureIoTClient 18:ec8e5e97c6a4 1105 iterator++;
AzureIoTClient 18:ec8e5e97c6a4 1106 }
AzureIoTClient 18:ec8e5e97c6a4 1107 }
AzureIoTClient 18:ec8e5e97c6a4 1108 else
AzureIoTClient 18:ec8e5e97c6a4 1109 {
AzureIoTClient 18:ec8e5e97c6a4 1110 const char* iterator = tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1111 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 18:ec8e5e97c6a4 1112 {
AzureIoTClient 18:ec8e5e97c6a4 1113 if (*iterator == '=')
AzureIoTClient 18:ec8e5e97c6a4 1114 {
AzureIoTClient 18:ec8e5e97c6a4 1115 size_t nameLen = iterator - tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1116 char* propName = malloc(nameLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1117
AzureIoTClient 18:ec8e5e97c6a4 1118 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 18:ec8e5e97c6a4 1119 char* propValue = malloc(valLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1120
AzureIoTClient 18:ec8e5e97c6a4 1121 if (propName == NULL || propValue == NULL)
AzureIoTClient 18:ec8e5e97c6a4 1122 {
AzureIoTClient 18:ec8e5e97c6a4 1123 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1124 }
AzureIoTClient 11:31ebaeb51e1e 1125 else
AzureIoTClient 11:31ebaeb51e1e 1126 {
AzureIoTClient 11:31ebaeb51e1e 1127 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1128 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1129
AzureIoTClient 11:31ebaeb51e1e 1130 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1131 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1132
AzureIoTClient 11:31ebaeb51e1e 1133 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1134 {
AzureIoTClient 11:31ebaeb51e1e 1135 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 18:ec8e5e97c6a4 1136 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1137 }
AzureIoTClient 11:31ebaeb51e1e 1138 }
AzureIoTClient 11:31ebaeb51e1e 1139 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1140 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1141
AzureIoTClient 11:31ebaeb51e1e 1142 break;
AzureIoTClient 11:31ebaeb51e1e 1143 }
AzureIoTClient 11:31ebaeb51e1e 1144 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1145 }
AzureIoTClient 11:31ebaeb51e1e 1146 }
AzureIoTClient 11:31ebaeb51e1e 1147 }
AzureIoTClient 11:31ebaeb51e1e 1148 }
AzureIoTClient 11:31ebaeb51e1e 1149 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1150 }
AzureIoTClient 11:31ebaeb51e1e 1151 }
AzureIoTClient 11:31ebaeb51e1e 1152 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1153 }
AzureIoTClient 11:31ebaeb51e1e 1154 else
AzureIoTClient 11:31ebaeb51e1e 1155 {
AzureIoTClient 11:31ebaeb51e1e 1156 LogError("Unable to create Tokenizer object.");
AzureIoTClient 18:ec8e5e97c6a4 1157 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1158 }
AzureIoTClient 11:31ebaeb51e1e 1159 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1160 }
AzureIoTClient 11:31ebaeb51e1e 1161 return result;
AzureIoTClient 11:31ebaeb51e1e 1162 }
AzureIoTClient 11:31ebaeb51e1e 1163
AzureIoTClient 11:31ebaeb51e1e 1164 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1165 {
AzureIoTClient 14:4dc2b011be33 1166 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
AzureIoTClient 11:31ebaeb51e1e 1167 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1168 {
AzureIoTClient 14:4dc2b011be33 1169 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
AzureIoTClient 11:31ebaeb51e1e 1170 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1171 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1172 {
AzureIoTClient 11:31ebaeb51e1e 1173 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1174 }
AzureIoTClient 11:31ebaeb51e1e 1175 else
AzureIoTClient 11:31ebaeb51e1e 1176 {
AzureIoTClient 11:31ebaeb51e1e 1177 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1178
AzureIoTClient 12:658ca6865de2 1179 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1180 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1181 {
AzureIoTClient 12:658ca6865de2 1182 size_t request_id;
AzureIoTClient 12:658ca6865de2 1183 int status_code;
AzureIoTClient 12:658ca6865de2 1184 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1185 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1186 {
AzureIoTClient 12:658ca6865de2 1187 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1188 }
AzureIoTClient 12:658ca6865de2 1189 else
AzureIoTClient 12:658ca6865de2 1190 {
AzureIoTClient 12:658ca6865de2 1191 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1192 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1193 {
AzureIoTClient 12:658ca6865de2 1194 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1195 }
AzureIoTClient 12:658ca6865de2 1196 else
AzureIoTClient 12:658ca6865de2 1197 {
AzureIoTClient 12:658ca6865de2 1198 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1199 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1200 {
AzureIoTClient 12:658ca6865de2 1201 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1202 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1203 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1204 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1205 {
AzureIoTClient 12:658ca6865de2 1206 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1207 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1208 {
AzureIoTClient 14:4dc2b011be33 1209 /* 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 1210 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1211 }
AzureIoTClient 12:658ca6865de2 1212 else
AzureIoTClient 12:658ca6865de2 1213 {
AzureIoTClient 14:4dc2b011be33 1214 /* 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 1215 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1216 }
AzureIoTClient 12:658ca6865de2 1217 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1218 break;
AzureIoTClient 12:658ca6865de2 1219 }
AzureIoTClient 12:658ca6865de2 1220 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1221 }
AzureIoTClient 12:658ca6865de2 1222 }
AzureIoTClient 12:658ca6865de2 1223 }
AzureIoTClient 12:658ca6865de2 1224 }
AzureIoTClient 12:658ca6865de2 1225 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1226 {
AzureIoTClient 12:658ca6865de2 1227 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1228 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1229 {
AzureIoTClient 12:658ca6865de2 1230 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1231 }
AzureIoTClient 12:658ca6865de2 1232 else
AzureIoTClient 12:658ca6865de2 1233 {
AzureIoTClient 14:4dc2b011be33 1234 DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO) );
AzureIoTClient 14:4dc2b011be33 1235 if (dev_method_info == NULL)
AzureIoTClient 12:658ca6865de2 1236 {
AzureIoTClient 14:4dc2b011be33 1237 LogError("Failure: allocating DEVICE_METHOD_INFO object");
AzureIoTClient 12:658ca6865de2 1238 }
AzureIoTClient 12:658ca6865de2 1239 else
AzureIoTClient 12:658ca6865de2 1240 {
AzureIoTClient 14:4dc2b011be33 1241 dev_method_info->request_id = STRING_new();
AzureIoTClient 14:4dc2b011be33 1242 if (dev_method_info->request_id == NULL)
AzureIoTClient 14:4dc2b011be33 1243 {
AzureIoTClient 14:4dc2b011be33 1244 LogError("Failure constructing request_id string");
AzureIoTClient 14:4dc2b011be33 1245 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1246 }
AzureIoTClient 14:4dc2b011be33 1247 else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
AzureIoTClient 12:658ca6865de2 1248 {
AzureIoTClient 14:4dc2b011be33 1249 LogError("Failure: retrieve device topic info");
AzureIoTClient 14:4dc2b011be33 1250 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1251 free(dev_method_info);
AzureIoTClient 12:658ca6865de2 1252 }
AzureIoTClient 14:4dc2b011be33 1253 else
AzureIoTClient 14:4dc2b011be33 1254 {
AzureIoTClient 14:4dc2b011be33 1255 /* 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 1256 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 14:4dc2b011be33 1257 if (IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info) != 0)
AzureIoTClient 14:4dc2b011be33 1258 {
AzureIoTClient 14:4dc2b011be33 1259 LogError("Failure: IoTHubClient_LL_DeviceMethodComplete");
AzureIoTClient 14:4dc2b011be33 1260 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1261 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1262 }
AzureIoTClient 14:4dc2b011be33 1263 }
AzureIoTClient 12:658ca6865de2 1264 }
AzureIoTClient 12:658ca6865de2 1265 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1266 }
AzureIoTClient 11:31ebaeb51e1e 1267 }
AzureIoTClient 11:31ebaeb51e1e 1268 else
AzureIoTClient 11:31ebaeb51e1e 1269 {
AzureIoTClient 12:658ca6865de2 1270 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1271 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1272 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1273 {
AzureIoTClient 12:658ca6865de2 1274 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1275 }
AzureIoTClient 11:31ebaeb51e1e 1276 else
AzureIoTClient 11:31ebaeb51e1e 1277 {
AzureIoTClient 12:658ca6865de2 1278 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1279 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1280 {
AzureIoTClient 12:658ca6865de2 1281 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1282 }
AzureIoTClient 12:658ca6865de2 1283 else
AzureIoTClient 11:31ebaeb51e1e 1284 {
AzureIoTClient 19:f87dfe76bc70 1285 MESSAGE_CALLBACK_INFO* messageData = (MESSAGE_CALLBACK_INFO*)malloc(sizeof(MESSAGE_CALLBACK_INFO));
AzureIoTClient 19:f87dfe76bc70 1286 if (messageData == NULL)
AzureIoTClient 19:f87dfe76bc70 1287 {
AzureIoTClient 19:f87dfe76bc70 1288 LogError("malloc failed");
AzureIoTClient 19:f87dfe76bc70 1289 }
AzureIoTClient 19:f87dfe76bc70 1290 else
AzureIoTClient 12:658ca6865de2 1291 {
AzureIoTClient 19:f87dfe76bc70 1292 messageData->messageHandle = IoTHubMessage;
AzureIoTClient 19:f87dfe76bc70 1293 messageData->transportContext = NULL;
AzureIoTClient 19:f87dfe76bc70 1294
AzureIoTClient 19:f87dfe76bc70 1295 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_056: [ If type is IOTHUB_TYPE_TELEMETRY, then on success mqtt_notification_callback shall call IoTHubClient_LL_MessageCallback. ] */
AzureIoTClient 19:f87dfe76bc70 1296 if (!IoTHubClient_LL_MessageCallback(transportData->llClientHandle, messageData))
AzureIoTClient 19:f87dfe76bc70 1297 {
AzureIoTClient 19:f87dfe76bc70 1298 LogError("IoTHubClient_LL_MessageCallback returned false");
AzureIoTClient 19:f87dfe76bc70 1299
AzureIoTClient 19:f87dfe76bc70 1300 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 19:f87dfe76bc70 1301 free(messageData);
AzureIoTClient 19:f87dfe76bc70 1302 }
AzureIoTClient 12:658ca6865de2 1303 }
AzureIoTClient 11:31ebaeb51e1e 1304 }
AzureIoTClient 11:31ebaeb51e1e 1305 }
AzureIoTClient 11:31ebaeb51e1e 1306 }
AzureIoTClient 11:31ebaeb51e1e 1307 }
AzureIoTClient 11:31ebaeb51e1e 1308 }
AzureIoTClient 11:31ebaeb51e1e 1309 }
AzureIoTClient 11:31ebaeb51e1e 1310
AzureIoTClient 11:31ebaeb51e1e 1311 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1312 {
AzureIoTClient 11:31ebaeb51e1e 1313 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1314 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1315 {
AzureIoTClient 11:31ebaeb51e1e 1316 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1317
AzureIoTClient 11:31ebaeb51e1e 1318 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1319 {
AzureIoTClient 11:31ebaeb51e1e 1320 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1321 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1322 {
AzureIoTClient 11:31ebaeb51e1e 1323 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1324 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1325 {
AzureIoTClient 11:31ebaeb51e1e 1326 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1327 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1328 {
AzureIoTClient 11:31ebaeb51e1e 1329 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1330 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1331 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1332
AzureIoTClient 11:31ebaeb51e1e 1333 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1334 {
AzureIoTClient 11:31ebaeb51e1e 1335 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1336 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1337 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1338 }
AzureIoTClient 11:31ebaeb51e1e 1339 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1340 }
AzureIoTClient 11:31ebaeb51e1e 1341 }
AzureIoTClient 11:31ebaeb51e1e 1342 else
AzureIoTClient 11:31ebaeb51e1e 1343 {
AzureIoTClient 11:31ebaeb51e1e 1344 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1345 }
AzureIoTClient 11:31ebaeb51e1e 1346 break;
AzureIoTClient 11:31ebaeb51e1e 1347 }
AzureIoTClient 11:31ebaeb51e1e 1348 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1349 {
AzureIoTClient 11:31ebaeb51e1e 1350 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1351 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1352 {
AzureIoTClient 11:31ebaeb51e1e 1353 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1354 {
AzureIoTClient 11:31ebaeb51e1e 1355 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1356 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1357 transport_data->isRecoverableError = true;
AzureIoTClient 12:658ca6865de2 1358 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 19:f87dfe76bc70 1359 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1360 }
AzureIoTClient 11:31ebaeb51e1e 1361 else
AzureIoTClient 11:31ebaeb51e1e 1362 {
AzureIoTClient 12:658ca6865de2 1363 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1364 {
AzureIoTClient 12:658ca6865de2 1365 transport_data->isRecoverableError = false;
AzureIoTClient 19:f87dfe76bc70 1366 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1367 }
AzureIoTClient 12:658ca6865de2 1368 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1369 {
AzureIoTClient 19:f87dfe76bc70 1370 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1371 }
AzureIoTClient 12:658ca6865de2 1372 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1373 {
AzureIoTClient 12:658ca6865de2 1374 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1375 }
AzureIoTClient 11:31ebaeb51e1e 1376 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1377 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1378 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1379 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1380 }
AzureIoTClient 11:31ebaeb51e1e 1381 }
AzureIoTClient 11:31ebaeb51e1e 1382 else
AzureIoTClient 11:31ebaeb51e1e 1383 {
AzureIoTClient 11:31ebaeb51e1e 1384 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1385 }
AzureIoTClient 11:31ebaeb51e1e 1386 break;
AzureIoTClient 11:31ebaeb51e1e 1387 }
AzureIoTClient 11:31ebaeb51e1e 1388 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1389 {
AzureIoTClient 11:31ebaeb51e1e 1390 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1391 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1392 {
AzureIoTClient 16:14640ee83e99 1393 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1394 for (index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1395 {
AzureIoTClient 11:31ebaeb51e1e 1396 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1397 {
AzureIoTClient 11:31ebaeb51e1e 1398 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1399 }
AzureIoTClient 11:31ebaeb51e1e 1400 }
AzureIoTClient 11:31ebaeb51e1e 1401 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1402 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1403 }
AzureIoTClient 11:31ebaeb51e1e 1404 else
AzureIoTClient 11:31ebaeb51e1e 1405 {
AzureIoTClient 11:31ebaeb51e1e 1406 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1407 }
AzureIoTClient 11:31ebaeb51e1e 1408 break;
AzureIoTClient 11:31ebaeb51e1e 1409 }
AzureIoTClient 11:31ebaeb51e1e 1410 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1411 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1412 {
AzureIoTClient 11:31ebaeb51e1e 1413 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1414 break;
AzureIoTClient 11:31ebaeb51e1e 1415 }
AzureIoTClient 11:31ebaeb51e1e 1416 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1417 {
AzureIoTClient 11:31ebaeb51e1e 1418 // Close the client so we can reconnect again
AzureIoTClient 11:31ebaeb51e1e 1419 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1420 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1421 break;
AzureIoTClient 11:31ebaeb51e1e 1422 }
AzureIoTClient 17:774695cb8554 1423 case MQTT_CLIENT_ON_UNSUBSCRIBE_ACK:
AzureIoTClient 17:774695cb8554 1424 {
AzureIoTClient 17:774695cb8554 1425 break;
AzureIoTClient 17:774695cb8554 1426 }
AzureIoTClient 12:658ca6865de2 1427 }
AzureIoTClient 12:658ca6865de2 1428 }
AzureIoTClient 12:658ca6865de2 1429 }
AzureIoTClient 12:658ca6865de2 1430
AzureIoTClient 12:658ca6865de2 1431 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1432 {
AzureIoTClient 12:658ca6865de2 1433 (void)handle;
AzureIoTClient 12:658ca6865de2 1434 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1435 {
AzureIoTClient 12:658ca6865de2 1436 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1437 switch (error)
AzureIoTClient 12:658ca6865de2 1438 {
AzureIoTClient 12:658ca6865de2 1439 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1440 {
AzureIoTClient 19:f87dfe76bc70 1441 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1442 break;
AzureIoTClient 12:658ca6865de2 1443 }
AzureIoTClient 12:658ca6865de2 1444 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1445 {
AzureIoTClient 12:658ca6865de2 1446 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1447 break;
AzureIoTClient 11:31ebaeb51e1e 1448 }
AzureIoTClient 17:774695cb8554 1449 case MQTT_CLIENT_PARSE_ERROR:
AzureIoTClient 17:774695cb8554 1450 case MQTT_CLIENT_MEMORY_ERROR:
AzureIoTClient 17:774695cb8554 1451 case MQTT_CLIENT_COMMUNICATION_ERROR:
AzureIoTClient 17:774695cb8554 1452 case MQTT_CLIENT_UNKNOWN_ERROR:
AzureIoTClient 17:774695cb8554 1453 {
AzureIoTClient 17:774695cb8554 1454 LogError("INTERNAL ERROR: unexpected error value received %s", ENUM_TO_STRING(MQTT_CLIENT_EVENT_ERROR, error));
AzureIoTClient 17:774695cb8554 1455 }
AzureIoTClient 11:31ebaeb51e1e 1456 }
AzureIoTClient 12:658ca6865de2 1457 transport_data->isConnected = false;
AzureIoTClient 12:658ca6865de2 1458 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1459 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1460 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1461 {
Azure.IoT.Build 13:606465879c57 1462 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1463 }
Azure.IoT.Build 13:606465879c57 1464 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1465 {
Azure.IoT.Build 13:606465879c57 1466 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1467 }
Azure.IoT.Build 13:606465879c57 1468 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1469 {
Azure.IoT.Build 13:606465879c57 1470 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1471 }
Azure.IoT.Build 13:606465879c57 1472 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1473 {
Azure.IoT.Build 13:606465879c57 1474 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1475 }
Azure.IoT.Build 13:606465879c57 1476 }
AzureIoTClient 12:658ca6865de2 1477 else
AzureIoTClient 12:658ca6865de2 1478 {
AzureIoTClient 12:658ca6865de2 1479 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1480 }
AzureIoTClient 11:31ebaeb51e1e 1481 }
AzureIoTClient 11:31ebaeb51e1e 1482
AzureIoTClient 11:31ebaeb51e1e 1483 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1484 {
AzureIoTClient 11:31ebaeb51e1e 1485 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1486 {
AzureIoTClient 11:31ebaeb51e1e 1487 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1488 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1489 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1490 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1491 {
AzureIoTClient 11:31ebaeb51e1e 1492 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1493 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1494 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1495 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1496 }
AzureIoTClient 12:658ca6865de2 1497 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1498 {
AzureIoTClient 12:658ca6865de2 1499 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1500 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1501 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1502 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1503 }
AzureIoTClient 12:658ca6865de2 1504 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1505 {
AzureIoTClient 12:658ca6865de2 1506 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1507 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1508 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1509 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1510 }
AzureIoTClient 12:658ca6865de2 1511 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1512 {
AzureIoTClient 12:658ca6865de2 1513 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1514 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1515 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1516 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1517 }
AzureIoTClient 11:31ebaeb51e1e 1518
AzureIoTClient 11:31ebaeb51e1e 1519 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1520 {
AzureIoTClient 12:658ca6865de2 1521 /* 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 1522 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1523 {
AzureIoTClient 12:658ca6865de2 1524 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1525 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1526 }
AzureIoTClient 11:31ebaeb51e1e 1527 else
AzureIoTClient 11:31ebaeb51e1e 1528 {
AzureIoTClient 12:658ca6865de2 1529 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1530 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1531 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1532 }
AzureIoTClient 11:31ebaeb51e1e 1533 }
AzureIoTClient 11:31ebaeb51e1e 1534 else
AzureIoTClient 11:31ebaeb51e1e 1535 {
AzureIoTClient 12:658ca6865de2 1536 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1537 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1538 }
AzureIoTClient 11:31ebaeb51e1e 1539 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1540 }
AzureIoTClient 11:31ebaeb51e1e 1541 else
AzureIoTClient 11:31ebaeb51e1e 1542 {
AzureIoTClient 11:31ebaeb51e1e 1543 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1544 }
AzureIoTClient 11:31ebaeb51e1e 1545 }
AzureIoTClient 11:31ebaeb51e1e 1546
AzureIoTClient 11:31ebaeb51e1e 1547 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1548 {
AzureIoTClient 11:31ebaeb51e1e 1549 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1550
AzureIoTClient 11:31ebaeb51e1e 1551 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1552 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1553 {
AzureIoTClient 11:31ebaeb51e1e 1554 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1555 {
AzureIoTClient 11:31ebaeb51e1e 1556 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1557 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1558 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1559 }
AzureIoTClient 11:31ebaeb51e1e 1560 }
AzureIoTClient 11:31ebaeb51e1e 1561 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1562 {
AzureIoTClient 11:31ebaeb51e1e 1563 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1564 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1565 {
AzureIoTClient 11:31ebaeb51e1e 1566 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1567 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1568 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1569 }
AzureIoTClient 11:31ebaeb51e1e 1570 else
AzureIoTClient 11:31ebaeb51e1e 1571 {
AzureIoTClient 11:31ebaeb51e1e 1572 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1573 }
AzureIoTClient 11:31ebaeb51e1e 1574 }
AzureIoTClient 11:31ebaeb51e1e 1575 else
AzureIoTClient 11:31ebaeb51e1e 1576 {
AzureIoTClient 11:31ebaeb51e1e 1577 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1578 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1579 }
AzureIoTClient 11:31ebaeb51e1e 1580 return result;
AzureIoTClient 11:31ebaeb51e1e 1581 }
AzureIoTClient 11:31ebaeb51e1e 1582
AzureIoTClient 11:31ebaeb51e1e 1583 static int GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1584 {
AzureIoTClient 11:31ebaeb51e1e 1585 int result;
AzureIoTClient 11:31ebaeb51e1e 1586
AzureIoTClient 11:31ebaeb51e1e 1587 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1588 {
AzureIoTClient 11:31ebaeb51e1e 1589 // construct address
AzureIoTClient 11:31ebaeb51e1e 1590 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1591 transport_data->xioTransport = transport_data->get_io_transport(hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1592 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1593 {
AzureIoTClient 11:31ebaeb51e1e 1594 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 18:ec8e5e97c6a4 1595 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1596 }
AzureIoTClient 11:31ebaeb51e1e 1597 else
AzureIoTClient 11:31ebaeb51e1e 1598 {
AzureIoTClient 11:31ebaeb51e1e 1599 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1600 }
AzureIoTClient 11:31ebaeb51e1e 1601 }
AzureIoTClient 11:31ebaeb51e1e 1602 else
AzureIoTClient 11:31ebaeb51e1e 1603 {
AzureIoTClient 11:31ebaeb51e1e 1604 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1605 }
AzureIoTClient 11:31ebaeb51e1e 1606 return result;
AzureIoTClient 11:31ebaeb51e1e 1607 }
AzureIoTClient 11:31ebaeb51e1e 1608
AzureIoTClient 11:31ebaeb51e1e 1609 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1610 {
AzureIoTClient 11:31ebaeb51e1e 1611 int result;
AzureIoTClient 11:31ebaeb51e1e 1612
AzureIoTClient 11:31ebaeb51e1e 1613 // Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
AzureIoTClient 11:31ebaeb51e1e 1614 STRING_HANDLE emptyKeyName = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1615 if (emptyKeyName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1616 {
AzureIoTClient 18:ec8e5e97c6a4 1617 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1618 }
AzureIoTClient 11:31ebaeb51e1e 1619 else
AzureIoTClient 11:31ebaeb51e1e 1620 {
AzureIoTClient 11:31ebaeb51e1e 1621 STRING_HANDLE sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1622 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1623
AzureIoTClient 11:31ebaeb51e1e 1624 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 1625 {
AzureIoTClient 12:658ca6865de2 1626 case SAS_TOKEN_FROM_USER:
AzureIoTClient 12:658ca6865de2 1627 sasToken = STRING_clone(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 12:658ca6865de2 1628 if (!SASToken_Validate(sasToken))
AzureIoTClient 11:31ebaeb51e1e 1629 {
AzureIoTClient 19:f87dfe76bc70 1630 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 12:658ca6865de2 1631 STRING_delete(sasToken);
AzureIoTClient 18:ec8e5e97c6a4 1632 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1633 }
AzureIoTClient 12:658ca6865de2 1634 break;
AzureIoTClient 12:658ca6865de2 1635 case DEVICE_KEY:
AzureIoTClient 12:658ca6865de2 1636 {
AzureIoTClient 12:658ca6865de2 1637 // Construct SAS token
AzureIoTClient 12:658ca6865de2 1638 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 12:658ca6865de2 1639 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 11:31ebaeb51e1e 1640
AzureIoTClient 12:658ca6865de2 1641 sasToken = SASToken_Create(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey, transport_data->devicesPath, emptyKeyName, expiryTime);
AzureIoTClient 12:658ca6865de2 1642 break;
AzureIoTClient 12:658ca6865de2 1643 }
AzureIoTClient 12:658ca6865de2 1644 case X509:
AzureIoTClient 12:658ca6865de2 1645 default:
AzureIoTClient 12:658ca6865de2 1646 // The assumption here is that x509 is in place, if not setup
AzureIoTClient 12:658ca6865de2 1647 // correctly the connection will be rejected.
AzureIoTClient 12:658ca6865de2 1648 sasToken = NULL;
AzureIoTClient 12:658ca6865de2 1649 break;
AzureIoTClient 11:31ebaeb51e1e 1650 }
AzureIoTClient 11:31ebaeb51e1e 1651
AzureIoTClient 12:658ca6865de2 1652 if (result == 0)
AzureIoTClient 11:31ebaeb51e1e 1653 {
AzureIoTClient 12:658ca6865de2 1654 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 12:658ca6865de2 1655 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 12:658ca6865de2 1656 options.willMessage = NULL;
AzureIoTClient 12:658ca6865de2 1657 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 1658 if (sasToken != NULL)
AzureIoTClient 12:658ca6865de2 1659 {
AzureIoTClient 12:658ca6865de2 1660 options.password = (char*)STRING_c_str(sasToken);
AzureIoTClient 12:658ca6865de2 1661 }
AzureIoTClient 12:658ca6865de2 1662 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 12:658ca6865de2 1663 options.useCleanSession = false;
AzureIoTClient 12:658ca6865de2 1664 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1665
AzureIoTClient 12:658ca6865de2 1666 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 1667 {
AzureIoTClient 12:658ca6865de2 1668 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 12:658ca6865de2 1669 {
AzureIoTClient 12:658ca6865de2 1670 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 18:ec8e5e97c6a4 1671 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1672 }
AzureIoTClient 12:658ca6865de2 1673 else
AzureIoTClient 12:658ca6865de2 1674 {
Azure.IoT.Build 13:606465879c57 1675 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 12:658ca6865de2 1676 result = 0;
AzureIoTClient 12:658ca6865de2 1677 }
AzureIoTClient 11:31ebaeb51e1e 1678 }
AzureIoTClient 11:31ebaeb51e1e 1679 else
AzureIoTClient 11:31ebaeb51e1e 1680 {
AzureIoTClient 18:ec8e5e97c6a4 1681 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1682 }
AzureIoTClient 12:658ca6865de2 1683
AzureIoTClient 12:658ca6865de2 1684 STRING_delete(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1685 }
AzureIoTClient 11:31ebaeb51e1e 1686 STRING_delete(emptyKeyName);
AzureIoTClient 11:31ebaeb51e1e 1687 }
AzureIoTClient 11:31ebaeb51e1e 1688 return result;
AzureIoTClient 11:31ebaeb51e1e 1689 }
AzureIoTClient 11:31ebaeb51e1e 1690
AzureIoTClient 11:31ebaeb51e1e 1691 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1692 {
AzureIoTClient 11:31ebaeb51e1e 1693 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1694
AzureIoTClient 11:31ebaeb51e1e 1695 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1696 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1697 {
AzureIoTClient 11:31ebaeb51e1e 1698 // If we are not isConnected then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1699 // to back off the connecting to the server
AzureIoTClient 12:658ca6865de2 1700 if (!transport_data->isConnected && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1701 {
Azure.IoT.Build 13:606465879c57 1702 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1703 {
AzureIoTClient 12:658ca6865de2 1704 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1705 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1706 }
AzureIoTClient 12:658ca6865de2 1707 else
AzureIoTClient 11:31ebaeb51e1e 1708 {
AzureIoTClient 12:658ca6865de2 1709 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1710 {
AzureIoTClient 11:31ebaeb51e1e 1711 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1712 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1713 }
AzureIoTClient 11:31ebaeb51e1e 1714 else
AzureIoTClient 11:31ebaeb51e1e 1715 {
AzureIoTClient 12:658ca6865de2 1716 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1717 transport_data->isConnected = true;
AzureIoTClient 12:658ca6865de2 1718 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1719 }
AzureIoTClient 11:31ebaeb51e1e 1720 }
AzureIoTClient 11:31ebaeb51e1e 1721 }
AzureIoTClient 11:31ebaeb51e1e 1722
AzureIoTClient 11:31ebaeb51e1e 1723 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 1724 {
AzureIoTClient 11:31ebaeb51e1e 1725 // We are isConnected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1726 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1727 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1728 {
AzureIoTClient 11:31ebaeb51e1e 1729 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1730 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1731 }
AzureIoTClient 11:31ebaeb51e1e 1732 else
AzureIoTClient 11:31ebaeb51e1e 1733 {
AzureIoTClient 11:31ebaeb51e1e 1734 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1735 {
AzureIoTClient 11:31ebaeb51e1e 1736 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 19:f87dfe76bc70 1737 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 11:31ebaeb51e1e 1738 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 1739 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1740 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1741 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1742 {
AzureIoTClient 11:31ebaeb51e1e 1743 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1744 }
AzureIoTClient 12:658ca6865de2 1745 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1746 {
AzureIoTClient 12:658ca6865de2 1747 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1748 }
AzureIoTClient 12:658ca6865de2 1749 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1750 {
AzureIoTClient 12:658ca6865de2 1751 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1752 }
AzureIoTClient 12:658ca6865de2 1753 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1754 {
AzureIoTClient 12:658ca6865de2 1755 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1756 }
AzureIoTClient 11:31ebaeb51e1e 1757 }
AzureIoTClient 11:31ebaeb51e1e 1758 }
AzureIoTClient 11:31ebaeb51e1e 1759 }
AzureIoTClient 11:31ebaeb51e1e 1760 }
AzureIoTClient 11:31ebaeb51e1e 1761 return result;
AzureIoTClient 11:31ebaeb51e1e 1762 }
AzureIoTClient 11:31ebaeb51e1e 1763
AzureIoTClient 11:31ebaeb51e1e 1764 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1765 {
AzureIoTClient 12:658ca6865de2 1766 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 1767 return result;
AzureIoTClient 11:31ebaeb51e1e 1768 }
AzureIoTClient 11:31ebaeb51e1e 1769
AzureIoTClient 11:31ebaeb51e1e 1770 static int construct_credential_information(const IOTHUB_CLIENT_CONFIG* upperConfig, PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1771 {
AzureIoTClient 11:31ebaeb51e1e 1772 int result;
AzureIoTClient 11:31ebaeb51e1e 1773 if (upperConfig->deviceKey != NULL)
AzureIoTClient 11:31ebaeb51e1e 1774 {
AzureIoTClient 11:31ebaeb51e1e 1775 transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey = STRING_construct(upperConfig->deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1776 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey == NULL)
AzureIoTClient 11:31ebaeb51e1e 1777 {
AzureIoTClient 11:31ebaeb51e1e 1778 LogError("Could not create device key for MQTT");
AzureIoTClient 18:ec8e5e97c6a4 1779 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1780 }
AzureIoTClient 11:31ebaeb51e1e 1781 else if ((transport_data->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1782 {
AzureIoTClient 11:31ebaeb51e1e 1783 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 18:ec8e5e97c6a4 1784 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1785 }
AzureIoTClient 11:31ebaeb51e1e 1786 else
AzureIoTClient 11:31ebaeb51e1e 1787 {
AzureIoTClient 11:31ebaeb51e1e 1788 transport_data->transport_creds.credential_type = DEVICE_KEY;
AzureIoTClient 11:31ebaeb51e1e 1789 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1790 }
AzureIoTClient 11:31ebaeb51e1e 1791 }
AzureIoTClient 11:31ebaeb51e1e 1792 else if (upperConfig->deviceSasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1793 {
AzureIoTClient 11:31ebaeb51e1e 1794 transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken = STRING_construct(upperConfig->deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1795 if (transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1796 {
AzureIoTClient 18:ec8e5e97c6a4 1797 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1798 }
AzureIoTClient 11:31ebaeb51e1e 1799 else
AzureIoTClient 11:31ebaeb51e1e 1800 {
AzureIoTClient 11:31ebaeb51e1e 1801 transport_data->transport_creds.credential_type = SAS_TOKEN_FROM_USER;
AzureIoTClient 11:31ebaeb51e1e 1802 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1803 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1804 }
AzureIoTClient 11:31ebaeb51e1e 1805 }
AzureIoTClient 11:31ebaeb51e1e 1806 else
AzureIoTClient 11:31ebaeb51e1e 1807 {
AzureIoTClient 12:658ca6865de2 1808 /* 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 1809 transport_data->transport_creds.credential_type = X509;
AzureIoTClient 11:31ebaeb51e1e 1810 transport_data->devicesPath = NULL;
AzureIoTClient 11:31ebaeb51e1e 1811 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1812 }
AzureIoTClient 11:31ebaeb51e1e 1813 return result;
AzureIoTClient 11:31ebaeb51e1e 1814 }
AzureIoTClient 11:31ebaeb51e1e 1815
AzureIoTClient 11:31ebaeb51e1e 1816 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 1817 {
AzureIoTClient 11:31ebaeb51e1e 1818 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1819 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1820 {
AzureIoTClient 11:31ebaeb51e1e 1821 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1822 }
Azure.IoT.Build 13:606465879c57 1823 else if ((state->msgTickCounter = tickcounter_create()) == NULL)
Azure.IoT.Build 13:606465879c57 1824 {
Azure.IoT.Build 13:606465879c57 1825 LogError("Invalid Argument: iotHubName is empty");
Azure.IoT.Build 13:606465879c57 1826 free(state);
Azure.IoT.Build 13:606465879c57 1827 state = NULL;
Azure.IoT.Build 13:606465879c57 1828 }
AzureIoTClient 11:31ebaeb51e1e 1829 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1830 {
AzureIoTClient 11:31ebaeb51e1e 1831 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1832 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1833 free(state);
AzureIoTClient 11:31ebaeb51e1e 1834 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1835 }
AzureIoTClient 11:31ebaeb51e1e 1836 else
AzureIoTClient 11:31ebaeb51e1e 1837 {
AzureIoTClient 11:31ebaeb51e1e 1838 if (construct_credential_information(upperConfig, state) != 0)
AzureIoTClient 11:31ebaeb51e1e 1839 {
AzureIoTClient 11:31ebaeb51e1e 1840 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1841 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1842 free(state);
AzureIoTClient 11:31ebaeb51e1e 1843 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1844 }
AzureIoTClient 11:31ebaeb51e1e 1845 else if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1846 {
AzureIoTClient 11:31ebaeb51e1e 1847 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1848 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1849 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1850 {
AzureIoTClient 11:31ebaeb51e1e 1851 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1852 }
AzureIoTClient 11:31ebaeb51e1e 1853 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1854 {
AzureIoTClient 11:31ebaeb51e1e 1855 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1856 }
AzureIoTClient 11:31ebaeb51e1e 1857 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1858 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1859 free(state);
AzureIoTClient 11:31ebaeb51e1e 1860 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1861 }
AzureIoTClient 11:31ebaeb51e1e 1862 else
AzureIoTClient 11:31ebaeb51e1e 1863 {
AzureIoTClient 12:658ca6865de2 1864 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 11:31ebaeb51e1e 1865 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1866 {
AzureIoTClient 11:31ebaeb51e1e 1867 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1868 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1869 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1870 {
AzureIoTClient 11:31ebaeb51e1e 1871 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1872 }
AzureIoTClient 11:31ebaeb51e1e 1873 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1874 {
AzureIoTClient 11:31ebaeb51e1e 1875 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1876 }
AzureIoTClient 11:31ebaeb51e1e 1877 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1878 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1879 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1880 free(state);
AzureIoTClient 11:31ebaeb51e1e 1881 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1882 }
AzureIoTClient 11:31ebaeb51e1e 1883 else
AzureIoTClient 11:31ebaeb51e1e 1884 {
AzureIoTClient 11:31ebaeb51e1e 1885 /* 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 1886 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 11:31ebaeb51e1e 1887 {
AzureIoTClient 11:31ebaeb51e1e 1888 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 11:31ebaeb51e1e 1889 }
AzureIoTClient 11:31ebaeb51e1e 1890 else
AzureIoTClient 11:31ebaeb51e1e 1891 {
AzureIoTClient 11:31ebaeb51e1e 1892 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 11:31ebaeb51e1e 1893 }
AzureIoTClient 11:31ebaeb51e1e 1894
AzureIoTClient 11:31ebaeb51e1e 1895 if (state->hostAddress == NULL)
AzureIoTClient 11:31ebaeb51e1e 1896 {
AzureIoTClient 11:31ebaeb51e1e 1897 LogError("failure constructing host address.");
AzureIoTClient 11:31ebaeb51e1e 1898 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1899 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1900 {
AzureIoTClient 11:31ebaeb51e1e 1901 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1902 }
AzureIoTClient 11:31ebaeb51e1e 1903 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1904 {
AzureIoTClient 11:31ebaeb51e1e 1905 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1906 }
AzureIoTClient 11:31ebaeb51e1e 1907 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1908 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1909 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1910 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1911 free(state);
AzureIoTClient 11:31ebaeb51e1e 1912 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1913 }
AzureIoTClient 11:31ebaeb51e1e 1914 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1915 {
AzureIoTClient 11:31ebaeb51e1e 1916 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1917 if (state->transport_creds.credential_type == DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1918 {
AzureIoTClient 11:31ebaeb51e1e 1919 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 1920 }
AzureIoTClient 11:31ebaeb51e1e 1921 else if (state->transport_creds.credential_type == SAS_TOKEN_FROM_USER)
AzureIoTClient 11:31ebaeb51e1e 1922 {
AzureIoTClient 11:31ebaeb51e1e 1923 STRING_delete(state->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 1924 }
AzureIoTClient 11:31ebaeb51e1e 1925 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 1926 STRING_delete(state->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 1927 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1928 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1929 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1930 free(state);
AzureIoTClient 11:31ebaeb51e1e 1931 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1932 }
AzureIoTClient 11:31ebaeb51e1e 1933 else
AzureIoTClient 11:31ebaeb51e1e 1934 {
AzureIoTClient 12:658ca6865de2 1935 /* 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 1936 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 12:658ca6865de2 1937 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 11:31ebaeb51e1e 1938 state->isDestroyCalled = false;
AzureIoTClient 11:31ebaeb51e1e 1939 state->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 1940 state->isConnected = false;
AzureIoTClient 12:658ca6865de2 1941 state->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1942 state->isRecoverableError = true;
AzureIoTClient 11:31ebaeb51e1e 1943 state->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 1944 state->llClientHandle = NULL;
AzureIoTClient 11:31ebaeb51e1e 1945 state->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 1946 state->portNum = 0;
AzureIoTClient 11:31ebaeb51e1e 1947 state->waitingToSend = waitingToSend;
AzureIoTClient 11:31ebaeb51e1e 1948 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1949 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 11:31ebaeb51e1e 1950 state->connectFailCount = 0;
AzureIoTClient 11:31ebaeb51e1e 1951 state->connectTick = 0;
AzureIoTClient 11:31ebaeb51e1e 1952 state->topic_MqttMessage = NULL;
AzureIoTClient 12:658ca6865de2 1953 state->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 1954 state->topic_NotifyState = NULL;
AzureIoTClient 11:31ebaeb51e1e 1955 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 12:658ca6865de2 1956 state->topic_DeviceMethods = NULL;
AzureIoTClient 11:31ebaeb51e1e 1957 state->log_trace = state->raw_trace = false;
AzureIoTClient 12:658ca6865de2 1958 state->retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 1959 srand((unsigned int)get_time(NULL));
AzureIoTClient 11:31ebaeb51e1e 1960 }
AzureIoTClient 11:31ebaeb51e1e 1961 }
AzureIoTClient 11:31ebaeb51e1e 1962 }
AzureIoTClient 11:31ebaeb51e1e 1963 }
AzureIoTClient 11:31ebaeb51e1e 1964 return state;
AzureIoTClient 11:31ebaeb51e1e 1965 }
AzureIoTClient 11:31ebaeb51e1e 1966
AzureIoTClient 11:31ebaeb51e1e 1967 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 1968 {
AzureIoTClient 11:31ebaeb51e1e 1969 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 1970 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 1971
AzureIoTClient 12:658ca6865de2 1972 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1973 /* 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 1974 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1975 {
AzureIoTClient 11:31ebaeb51e1e 1976 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1977 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1978 }
AzureIoTClient 12:658ca6865de2 1979 /* 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 1980 /* 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 1981 /* 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 1982 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1983 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1984 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1985 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 1986 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1987 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 1988 {
AzureIoTClient 11:31ebaeb51e1e 1989 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 1990 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1991 }
AzureIoTClient 12:658ca6865de2 1992 /* 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 1993 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 1994 {
AzureIoTClient 11:31ebaeb51e1e 1995 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 1996 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1997 }
AzureIoTClient 12:658ca6865de2 1998 /* 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 1999 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 2000 {
AzureIoTClient 11:31ebaeb51e1e 2001 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 2002 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2003 }
AzureIoTClient 12:658ca6865de2 2004 /* 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 2005 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 2006 {
AzureIoTClient 11:31ebaeb51e1e 2007 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 2008 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2009 }
AzureIoTClient 12:658ca6865de2 2010 /* 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 2011 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 2012 {
AzureIoTClient 11:31ebaeb51e1e 2013 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 2014 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2015 }
AzureIoTClient 12:658ca6865de2 2016 /* 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 2017 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 2018 {
AzureIoTClient 11:31ebaeb51e1e 2019 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 2020 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2021 }
AzureIoTClient 11:31ebaeb51e1e 2022 else
AzureIoTClient 11:31ebaeb51e1e 2023 {
AzureIoTClient 11:31ebaeb51e1e 2024 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend);
Azure.IoT.Build 13:606465879c57 2025 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 2026 {
AzureIoTClient 11:31ebaeb51e1e 2027 result->get_io_transport = get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 2028 }
AzureIoTClient 11:31ebaeb51e1e 2029 }
AzureIoTClient 12:658ca6865de2 2030 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 2031 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 2032 return result;
AzureIoTClient 11:31ebaeb51e1e 2033 }
AzureIoTClient 11:31ebaeb51e1e 2034
AzureIoTClient 11:31ebaeb51e1e 2035 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 2036 {
AzureIoTClient 11:31ebaeb51e1e 2037 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2038 xio_destroy(transport_data->xioTransport);
AzureIoTClient 11:31ebaeb51e1e 2039 transport_data->xioTransport = NULL;
AzureIoTClient 11:31ebaeb51e1e 2040
AzureIoTClient 11:31ebaeb51e1e 2041 transport_data->isConnected = false;
AzureIoTClient 11:31ebaeb51e1e 2042 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2043 }
AzureIoTClient 11:31ebaeb51e1e 2044
AzureIoTClient 11:31ebaeb51e1e 2045 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2046 {
AzureIoTClient 12:658ca6865de2 2047 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2048 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2049 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2050 {
AzureIoTClient 11:31ebaeb51e1e 2051 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 2052
AzureIoTClient 11:31ebaeb51e1e 2053 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2054
AzureIoTClient 11:31ebaeb51e1e 2055 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 2056 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 2057 {
AzureIoTClient 11:31ebaeb51e1e 2058 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 2059 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2060 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 2061 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2062 }
AzureIoTClient 12:658ca6865de2 2063 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 2064 {
AzureIoTClient 12:658ca6865de2 2065 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 2066 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 2067 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 2068 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 2069 }
AzureIoTClient 11:31ebaeb51e1e 2070
AzureIoTClient 11:31ebaeb51e1e 2071 switch (transport_data->transport_creds.credential_type)
AzureIoTClient 11:31ebaeb51e1e 2072 {
AzureIoTClient 11:31ebaeb51e1e 2073 case SAS_TOKEN_FROM_USER:
AzureIoTClient 11:31ebaeb51e1e 2074 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceSasToken);
AzureIoTClient 11:31ebaeb51e1e 2075 break;
AzureIoTClient 11:31ebaeb51e1e 2076 case DEVICE_KEY:
AzureIoTClient 11:31ebaeb51e1e 2077 STRING_delete(transport_data->transport_creds.CREDENTIAL_VALUE.deviceKey);
AzureIoTClient 11:31ebaeb51e1e 2078 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 2079 break;
AzureIoTClient 11:31ebaeb51e1e 2080 case X509:
AzureIoTClient 11:31ebaeb51e1e 2081 default:
AzureIoTClient 11:31ebaeb51e1e 2082 break;
AzureIoTClient 11:31ebaeb51e1e 2083 }
AzureIoTClient 11:31ebaeb51e1e 2084
AzureIoTClient 12:658ca6865de2 2085 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 2086 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2087 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 2088 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2089 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 2090 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 2091 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 2092 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2093 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2094 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2095
Azure.IoT.Build 13:606465879c57 2096 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 2097 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 11:31ebaeb51e1e 2098 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2099 }
AzureIoTClient 11:31ebaeb51e1e 2100 }
AzureIoTClient 11:31ebaeb51e1e 2101
AzureIoTClient 12:658ca6865de2 2102 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2103 {
AzureIoTClient 12:658ca6865de2 2104 int result;
AzureIoTClient 12:658ca6865de2 2105 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2106 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2107 {
AzureIoTClient 12:658ca6865de2 2108 /* 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 2109 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2110 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2111 }
AzureIoTClient 12:658ca6865de2 2112 else
AzureIoTClient 12:658ca6865de2 2113 {
AzureIoTClient 12:658ca6865de2 2114 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2115 {
AzureIoTClient 12:658ca6865de2 2116 /* 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 2117 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2118 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2119 {
AzureIoTClient 12:658ca6865de2 2120 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2121 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 18:ec8e5e97c6a4 2122 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2123 }
AzureIoTClient 12:658ca6865de2 2124 else
AzureIoTClient 12:658ca6865de2 2125 {
AzureIoTClient 12:658ca6865de2 2126 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2127 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2128 result = 0;
AzureIoTClient 12:658ca6865de2 2129 }
AzureIoTClient 12:658ca6865de2 2130 }
AzureIoTClient 12:658ca6865de2 2131 else
AzureIoTClient 12:658ca6865de2 2132 {
AzureIoTClient 12:658ca6865de2 2133 result = 0;
AzureIoTClient 12:658ca6865de2 2134 }
AzureIoTClient 12:658ca6865de2 2135 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2136 {
AzureIoTClient 12:658ca6865de2 2137 /* 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 2138 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2139 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2140 {
AzureIoTClient 12:658ca6865de2 2141 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 18:ec8e5e97c6a4 2142 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2143 }
AzureIoTClient 12:658ca6865de2 2144 else
AzureIoTClient 12:658ca6865de2 2145 {
AzureIoTClient 12:658ca6865de2 2146 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2147 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2148 result = 0;
AzureIoTClient 12:658ca6865de2 2149 }
AzureIoTClient 12:658ca6865de2 2150 }
AzureIoTClient 12:658ca6865de2 2151 if (result == 0)
AzureIoTClient 12:658ca6865de2 2152 {
AzureIoTClient 12:658ca6865de2 2153 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2154 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2155 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2156 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2157 {
AzureIoTClient 12:658ca6865de2 2158 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2159 }
AzureIoTClient 12:658ca6865de2 2160 }
AzureIoTClient 12:658ca6865de2 2161 }
AzureIoTClient 12:658ca6865de2 2162 return result;
AzureIoTClient 12:658ca6865de2 2163 }
AzureIoTClient 12:658ca6865de2 2164
AzureIoTClient 12:658ca6865de2 2165 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2166 {
AzureIoTClient 12:658ca6865de2 2167 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2168 /* 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 2169 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2170 {
AzureIoTClient 12:658ca6865de2 2171 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2172 {
AzureIoTClient 12:658ca6865de2 2173 /* 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 2174 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2175 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2176 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2177 }
AzureIoTClient 12:658ca6865de2 2178 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2179 {
AzureIoTClient 12:658ca6865de2 2180 /* 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 2181 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2182 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2183 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2184 }
AzureIoTClient 12:658ca6865de2 2185 }
AzureIoTClient 12:658ca6865de2 2186 else
AzureIoTClient 12:658ca6865de2 2187 {
AzureIoTClient 12:658ca6865de2 2188 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2189 }
AzureIoTClient 12:658ca6865de2 2190 }
AzureIoTClient 12:658ca6865de2 2191
AzureIoTClient 12:658ca6865de2 2192 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2193 {
AzureIoTClient 12:658ca6865de2 2194 int result;
AzureIoTClient 12:658ca6865de2 2195 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2196
AzureIoTClient 12:658ca6865de2 2197 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2198 {
AzureIoTClient 12:658ca6865de2 2199 /*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 2200 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2201 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2202 }
AzureIoTClient 12:658ca6865de2 2203 else
AzureIoTClient 12:658ca6865de2 2204 {
AzureIoTClient 12:658ca6865de2 2205 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2206 {
AzureIoTClient 12:658ca6865de2 2207 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2208 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2209 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2210 {
AzureIoTClient 12:658ca6865de2 2211 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2212 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 18:ec8e5e97c6a4 2213 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2214 }
AzureIoTClient 12:658ca6865de2 2215 else
AzureIoTClient 12:658ca6865de2 2216 {
AzureIoTClient 12:658ca6865de2 2217 /*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 2218 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2219 result = 0;
AzureIoTClient 12:658ca6865de2 2220 }
AzureIoTClient 12:658ca6865de2 2221 }
AzureIoTClient 12:658ca6865de2 2222 else
AzureIoTClient 12:658ca6865de2 2223 {
AzureIoTClient 12:658ca6865de2 2224 /*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 2225 result = 0;
AzureIoTClient 12:658ca6865de2 2226 }
AzureIoTClient 12:658ca6865de2 2227
AzureIoTClient 12:658ca6865de2 2228 if (result == 0)
AzureIoTClient 12:658ca6865de2 2229 {
AzureIoTClient 12:658ca6865de2 2230 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2231 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2232 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2233 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2234 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2235 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2236 {
AzureIoTClient 12:658ca6865de2 2237 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2238 }
AzureIoTClient 12:658ca6865de2 2239 }
AzureIoTClient 12:658ca6865de2 2240 }
AzureIoTClient 12:658ca6865de2 2241 return result;
AzureIoTClient 12:658ca6865de2 2242 }
AzureIoTClient 12:658ca6865de2 2243
AzureIoTClient 12:658ca6865de2 2244 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2245 {
AzureIoTClient 12:658ca6865de2 2246 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2247 /*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 2248 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2249 {
AzureIoTClient 12:658ca6865de2 2250 /*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 2251 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2252 {
AzureIoTClient 12:658ca6865de2 2253 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2254 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2255 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2256
AzureIoTClient 12:658ca6865de2 2257 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2258 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2259 {
AzureIoTClient 12:658ca6865de2 2260 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2261 }
AzureIoTClient 12:658ca6865de2 2262
AzureIoTClient 12:658ca6865de2 2263 /*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 2264 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2265 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2266 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2267 }
AzureIoTClient 12:658ca6865de2 2268 }
AzureIoTClient 12:658ca6865de2 2269 else
AzureIoTClient 12:658ca6865de2 2270 {
AzureIoTClient 12:658ca6865de2 2271 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2272 }
AzureIoTClient 12:658ca6865de2 2273 }
AzureIoTClient 12:658ca6865de2 2274
AzureIoTClient 14:4dc2b011be33 2275 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 2276 {
AzureIoTClient 14:4dc2b011be33 2277 int result;
AzureIoTClient 14:4dc2b011be33 2278 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 14:4dc2b011be33 2279 if (transport_data != NULL)
AzureIoTClient 14:4dc2b011be33 2280 {
AzureIoTClient 14:4dc2b011be33 2281 /* 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 2282 DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
AzureIoTClient 14:4dc2b011be33 2283 if (dev_method_info == NULL)
AzureIoTClient 14:4dc2b011be33 2284 {
AzureIoTClient 14:4dc2b011be33 2285 LogError("Failure: DEVICE_METHOD_INFO was NULL");
AzureIoTClient 18:ec8e5e97c6a4 2286 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2287 }
AzureIoTClient 14:4dc2b011be33 2288 else
AzureIoTClient 14:4dc2b011be33 2289 {
AzureIoTClient 14:4dc2b011be33 2290 if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
AzureIoTClient 14:4dc2b011be33 2291 {
AzureIoTClient 14:4dc2b011be33 2292 /* 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 2293 LogError("Failure: publishing device method response");
AzureIoTClient 18:ec8e5e97c6a4 2294 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2295 }
AzureIoTClient 14:4dc2b011be33 2296 else
AzureIoTClient 14:4dc2b011be33 2297 {
AzureIoTClient 14:4dc2b011be33 2298 result = 0;
AzureIoTClient 14:4dc2b011be33 2299 }
AzureIoTClient 14:4dc2b011be33 2300 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 2301 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 2302 }
AzureIoTClient 14:4dc2b011be33 2303 }
AzureIoTClient 14:4dc2b011be33 2304 else
AzureIoTClient 14:4dc2b011be33 2305 {
AzureIoTClient 14:4dc2b011be33 2306 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_07_041: [ If the parameter handle is NULL than IoTHubTransport_MQTT_Common_DeviceMethod_Response shall return a non-zero value. ] */
AzureIoTClient 18:ec8e5e97c6a4 2307 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2308 LogError("Failure: invalid IOTHUB_DEVICE_HANDLE parameter specified");
AzureIoTClient 14:4dc2b011be33 2309 }
AzureIoTClient 14:4dc2b011be33 2310 return result;
AzureIoTClient 14:4dc2b011be33 2311 }
AzureIoTClient 14:4dc2b011be33 2312
AzureIoTClient 11:31ebaeb51e1e 2313 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2314 {
AzureIoTClient 11:31ebaeb51e1e 2315 int result;
AzureIoTClient 11:31ebaeb51e1e 2316 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2317 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2318 {
AzureIoTClient 12:658ca6865de2 2319 /* 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 2320 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2321 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2322 }
AzureIoTClient 11:31ebaeb51e1e 2323 else
AzureIoTClient 11:31ebaeb51e1e 2324 {
AzureIoTClient 12:658ca6865de2 2325 /* 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 2326 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2327 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2328 {
AzureIoTClient 11:31ebaeb51e1e 2329 LogError("Failure constructing Message Topic");
AzureIoTClient 18:ec8e5e97c6a4 2330 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2331 }
AzureIoTClient 11:31ebaeb51e1e 2332 else
AzureIoTClient 11:31ebaeb51e1e 2333 {
AzureIoTClient 11:31ebaeb51e1e 2334 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2335 /* 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 2336 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2337 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2338 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2339 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2340 {
AzureIoTClient 11:31ebaeb51e1e 2341 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2342 }
AzureIoTClient 11:31ebaeb51e1e 2343 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2344 }
AzureIoTClient 11:31ebaeb51e1e 2345 }
AzureIoTClient 11:31ebaeb51e1e 2346 return result;
AzureIoTClient 11:31ebaeb51e1e 2347 }
AzureIoTClient 11:31ebaeb51e1e 2348
AzureIoTClient 11:31ebaeb51e1e 2349 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2350 {
AzureIoTClient 11:31ebaeb51e1e 2351 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2352 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2353 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2354 {
AzureIoTClient 12:658ca6865de2 2355 /* 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 2356 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2357 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2358 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2359 {
AzureIoTClient 11:31ebaeb51e1e 2360 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2361 }
AzureIoTClient 11:31ebaeb51e1e 2362 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2363 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2364 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2365 }
AzureIoTClient 11:31ebaeb51e1e 2366 else
AzureIoTClient 11:31ebaeb51e1e 2367 {
AzureIoTClient 11:31ebaeb51e1e 2368 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2369 }
AzureIoTClient 11:31ebaeb51e1e 2370 }
AzureIoTClient 11:31ebaeb51e1e 2371
AzureIoTClient 12:658ca6865de2 2372 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 2373 {
AzureIoTClient 12:658ca6865de2 2374 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2375 /* 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 2376 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2377 {
AzureIoTClient 12:658ca6865de2 2378 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2379 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2380 }
AzureIoTClient 12:658ca6865de2 2381 else
AzureIoTClient 12:658ca6865de2 2382 {
AzureIoTClient 12:658ca6865de2 2383 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2384
AzureIoTClient 12:658ca6865de2 2385 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2386 {
AzureIoTClient 12:658ca6865de2 2387 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2388 {
AzureIoTClient 12:658ca6865de2 2389 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2390 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2391 {
AzureIoTClient 12:658ca6865de2 2392 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2393 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2394 }
AzureIoTClient 12:658ca6865de2 2395 else
AzureIoTClient 12:658ca6865de2 2396 {
AzureIoTClient 12:658ca6865de2 2397 /*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 2398 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2399 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2400 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2401
AzureIoTClient 12:658ca6865de2 2402 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2403 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2404
AzureIoTClient 12:658ca6865de2 2405 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2406 {
AzureIoTClient 12:658ca6865de2 2407 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2408
AzureIoTClient 12:658ca6865de2 2409 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2410 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2411 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2412 }
AzureIoTClient 12:658ca6865de2 2413 else
AzureIoTClient 12:658ca6865de2 2414 {
AzureIoTClient 12:658ca6865de2 2415 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2416 }
AzureIoTClient 12:658ca6865de2 2417 }
AzureIoTClient 12:658ca6865de2 2418 }
AzureIoTClient 12:658ca6865de2 2419 else
AzureIoTClient 12:658ca6865de2 2420 {
AzureIoTClient 12:658ca6865de2 2421 /* 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 2422 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2423 }
AzureIoTClient 12:658ca6865de2 2424 }
AzureIoTClient 12:658ca6865de2 2425 else
AzureIoTClient 12:658ca6865de2 2426 {
AzureIoTClient 12:658ca6865de2 2427 /* 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 2428 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2429 }
AzureIoTClient 12:658ca6865de2 2430 }
AzureIoTClient 12:658ca6865de2 2431 return result;
AzureIoTClient 12:658ca6865de2 2432 }
AzureIoTClient 12:658ca6865de2 2433
AzureIoTClient 12:658ca6865de2 2434 /* 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 2435 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2436 {
AzureIoTClient 12:658ca6865de2 2437 /* 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 2438 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2439 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2440 {
AzureIoTClient 11:31ebaeb51e1e 2441 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2442
AzureIoTClient 11:31ebaeb51e1e 2443 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2444 {
AzureIoTClient 11:31ebaeb51e1e 2445 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2446 }
AzureIoTClient 11:31ebaeb51e1e 2447 else
AzureIoTClient 11:31ebaeb51e1e 2448 {
AzureIoTClient 11:31ebaeb51e1e 2449 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2450 {
AzureIoTClient 11:31ebaeb51e1e 2451 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2452 }
AzureIoTClient 11:31ebaeb51e1e 2453 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2454 {
AzureIoTClient 12:658ca6865de2 2455 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2456 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2457 {
AzureIoTClient 12:658ca6865de2 2458 /* 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 2459 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2460 {
AzureIoTClient 12:658ca6865de2 2461 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2462 }
AzureIoTClient 12:658ca6865de2 2463 else
AzureIoTClient 12:658ca6865de2 2464 {
AzureIoTClient 12:658ca6865de2 2465 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2466 }
AzureIoTClient 12:658ca6865de2 2467 }
AzureIoTClient 11:31ebaeb51e1e 2468 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2469 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2470 }
AzureIoTClient 11:31ebaeb51e1e 2471 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2472 {
AzureIoTClient 11:31ebaeb51e1e 2473 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2474 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2475 {
AzureIoTClient 11:31ebaeb51e1e 2476 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2477 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2478 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2479
Azure.IoT.Build 13:606465879c57 2480 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2481 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2482 /* 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 2483 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2484 {
AzureIoTClient 12:658ca6865de2 2485 /* 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 2486 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2487 {
AzureIoTClient 11:31ebaeb51e1e 2488 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2489 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2490 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2491 }
AzureIoTClient 11:31ebaeb51e1e 2492 else
AzureIoTClient 11:31ebaeb51e1e 2493 {
AzureIoTClient 11:31ebaeb51e1e 2494 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2495 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2496 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2497 {
AzureIoTClient 11:31ebaeb51e1e 2498 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2499 }
AzureIoTClient 11:31ebaeb51e1e 2500 else
AzureIoTClient 11:31ebaeb51e1e 2501 {
AzureIoTClient 11:31ebaeb51e1e 2502 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2503 {
AzureIoTClient 11:31ebaeb51e1e 2504 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2505 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2506 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2507 }
AzureIoTClient 11:31ebaeb51e1e 2508 }
AzureIoTClient 11:31ebaeb51e1e 2509 }
AzureIoTClient 11:31ebaeb51e1e 2510 }
AzureIoTClient 11:31ebaeb51e1e 2511 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2512 }
AzureIoTClient 11:31ebaeb51e1e 2513
AzureIoTClient 11:31ebaeb51e1e 2514 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2515 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2516 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2517 {
AzureIoTClient 11:31ebaeb51e1e 2518 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2519 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2520 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2521
AzureIoTClient 12:658ca6865de2 2522 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2523 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2524 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2525 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2526 {
AzureIoTClient 11:31ebaeb51e1e 2527 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2528 }
AzureIoTClient 11:31ebaeb51e1e 2529 else
AzureIoTClient 11:31ebaeb51e1e 2530 {
AzureIoTClient 12:658ca6865de2 2531 /* 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 2532 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2533 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2534 {
AzureIoTClient 11:31ebaeb51e1e 2535 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2536 }
AzureIoTClient 11:31ebaeb51e1e 2537 else
AzureIoTClient 11:31ebaeb51e1e 2538 {
AzureIoTClient 11:31ebaeb51e1e 2539 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2540 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2541 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2542 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2543 {
AzureIoTClient 11:31ebaeb51e1e 2544 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2545 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2546 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2547 }
AzureIoTClient 11:31ebaeb51e1e 2548 else
AzureIoTClient 11:31ebaeb51e1e 2549 {
AzureIoTClient 11:31ebaeb51e1e 2550 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2551 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2552 }
AzureIoTClient 11:31ebaeb51e1e 2553 }
AzureIoTClient 11:31ebaeb51e1e 2554 }
AzureIoTClient 11:31ebaeb51e1e 2555 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2556 }
AzureIoTClient 11:31ebaeb51e1e 2557 }
AzureIoTClient 12:658ca6865de2 2558 /* 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 2559 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2560 }
AzureIoTClient 11:31ebaeb51e1e 2561 }
AzureIoTClient 11:31ebaeb51e1e 2562 }
AzureIoTClient 11:31ebaeb51e1e 2563
AzureIoTClient 11:31ebaeb51e1e 2564 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2565 {
AzureIoTClient 11:31ebaeb51e1e 2566 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2567
AzureIoTClient 11:31ebaeb51e1e 2568 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2569 {
AzureIoTClient 12:658ca6865de2 2570 /* 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 2571 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2572 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2573 }
AzureIoTClient 11:31ebaeb51e1e 2574 else
AzureIoTClient 11:31ebaeb51e1e 2575 {
AzureIoTClient 11:31ebaeb51e1e 2576 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2577 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2578 {
AzureIoTClient 12:658ca6865de2 2579 /* 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 2580 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2581 }
AzureIoTClient 11:31ebaeb51e1e 2582 else
AzureIoTClient 11:31ebaeb51e1e 2583 {
AzureIoTClient 12:658ca6865de2 2584 /* 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 2585 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2586 }
AzureIoTClient 11:31ebaeb51e1e 2587 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2588 }
AzureIoTClient 11:31ebaeb51e1e 2589 return result;
AzureIoTClient 11:31ebaeb51e1e 2590 }
AzureIoTClient 11:31ebaeb51e1e 2591
AzureIoTClient 11:31ebaeb51e1e 2592 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2593 {
AzureIoTClient 12:658ca6865de2 2594 /* 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 2595 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2596 if (
AzureIoTClient 11:31ebaeb51e1e 2597 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2598 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2599 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2600 )
AzureIoTClient 11:31ebaeb51e1e 2601 {
AzureIoTClient 11:31ebaeb51e1e 2602 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2603 LogError("invalid parameter (NULL) passed to clientTransportAMQP_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2604 }
AzureIoTClient 11:31ebaeb51e1e 2605 else
AzureIoTClient 11:31ebaeb51e1e 2606 {
AzureIoTClient 11:31ebaeb51e1e 2607 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2608 /* 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 2609 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2610 {
AzureIoTClient 11:31ebaeb51e1e 2611 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2612 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2613 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2614 }
AzureIoTClient 11:31ebaeb51e1e 2615 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2616 {
AzureIoTClient 11:31ebaeb51e1e 2617 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2618 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2619 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2620 }
AzureIoTClient 11:31ebaeb51e1e 2621 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2622 {
AzureIoTClient 11:31ebaeb51e1e 2623 /* 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 2624 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2625 /* 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 2626 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2627 {
AzureIoTClient 11:31ebaeb51e1e 2628 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 11:31ebaeb51e1e 2629 if (transport_data->isConnected)
AzureIoTClient 11:31ebaeb51e1e 2630 {
AzureIoTClient 12:658ca6865de2 2631 /* 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 2632 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2633 }
AzureIoTClient 11:31ebaeb51e1e 2634 }
AzureIoTClient 11:31ebaeb51e1e 2635 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2636 }
AzureIoTClient 11:31ebaeb51e1e 2637 /* 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 2638 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2639 {
AzureIoTClient 11:31ebaeb51e1e 2640 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2641 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2642 }
AzureIoTClient 11:31ebaeb51e1e 2643 /* 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 2644 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (transport_data->transport_creds.credential_type != X509))
AzureIoTClient 11:31ebaeb51e1e 2645 {
AzureIoTClient 11:31ebaeb51e1e 2646 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2647 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2648 }
AzureIoTClient 11:31ebaeb51e1e 2649 else
AzureIoTClient 11:31ebaeb51e1e 2650 {
AzureIoTClient 12:658ca6865de2 2651 /* 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 2652 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2653 {
AzureIoTClient 11:31ebaeb51e1e 2654 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2655 {
AzureIoTClient 11:31ebaeb51e1e 2656 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2657 }
AzureIoTClient 11:31ebaeb51e1e 2658 else
AzureIoTClient 11:31ebaeb51e1e 2659 {
AzureIoTClient 12:658ca6865de2 2660 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2661 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2662 }
AzureIoTClient 11:31ebaeb51e1e 2663 }
AzureIoTClient 11:31ebaeb51e1e 2664 else
AzureIoTClient 11:31ebaeb51e1e 2665 {
AzureIoTClient 11:31ebaeb51e1e 2666 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2667 }
AzureIoTClient 11:31ebaeb51e1e 2668 }
AzureIoTClient 11:31ebaeb51e1e 2669 }
AzureIoTClient 11:31ebaeb51e1e 2670 return result;
AzureIoTClient 11:31ebaeb51e1e 2671 }
AzureIoTClient 11:31ebaeb51e1e 2672
AzureIoTClient 11:31ebaeb51e1e 2673 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 2674 {
AzureIoTClient 11:31ebaeb51e1e 2675 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2676 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2677
AzureIoTClient 12:658ca6865de2 2678 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2679 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2680 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2681 {
AzureIoTClient 12:658ca6865de2 2682 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2683 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2684 }
AzureIoTClient 11:31ebaeb51e1e 2685 else
AzureIoTClient 11:31ebaeb51e1e 2686 {
AzureIoTClient 11:31ebaeb51e1e 2687 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2688
AzureIoTClient 12:658ca6865de2 2689 // 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 2690 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2691 {
AzureIoTClient 12:658ca6865de2 2692 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2693 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2694 }
AzureIoTClient 12:658ca6865de2 2695 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2696 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2697 {
AzureIoTClient 12:658ca6865de2 2698 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2699 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2700 }
AzureIoTClient 11:31ebaeb51e1e 2701 else
AzureIoTClient 11:31ebaeb51e1e 2702 {
AzureIoTClient 12:658ca6865de2 2703 // 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 2704 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2705 {
AzureIoTClient 12:658ca6865de2 2706 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2707 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2708 }
AzureIoTClient 11:31ebaeb51e1e 2709 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 2710 {
AzureIoTClient 12:658ca6865de2 2711 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2712 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2713 }
AzureIoTClient 11:31ebaeb51e1e 2714 else
AzureIoTClient 11:31ebaeb51e1e 2715 {
AzureIoTClient 11:31ebaeb51e1e 2716 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2717 {
AzureIoTClient 11:31ebaeb51e1e 2718 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2719 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2720 }
AzureIoTClient 11:31ebaeb51e1e 2721 else
AzureIoTClient 11:31ebaeb51e1e 2722 {
AzureIoTClient 11:31ebaeb51e1e 2723 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2724 // 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 2725 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2726 }
AzureIoTClient 11:31ebaeb51e1e 2727 }
AzureIoTClient 11:31ebaeb51e1e 2728 }
AzureIoTClient 11:31ebaeb51e1e 2729 }
AzureIoTClient 11:31ebaeb51e1e 2730
AzureIoTClient 11:31ebaeb51e1e 2731 return result;
AzureIoTClient 11:31ebaeb51e1e 2732 }
AzureIoTClient 11:31ebaeb51e1e 2733
AzureIoTClient 11:31ebaeb51e1e 2734 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2735 {
AzureIoTClient 14:4dc2b011be33 2736 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
AzureIoTClient 11:31ebaeb51e1e 2737 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2738 {
AzureIoTClient 11:31ebaeb51e1e 2739 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2740
AzureIoTClient 11:31ebaeb51e1e 2741 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2742 }
AzureIoTClient 11:31ebaeb51e1e 2743 }
AzureIoTClient 11:31ebaeb51e1e 2744
AzureIoTClient 11:31ebaeb51e1e 2745 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2746 {
AzureIoTClient 11:31ebaeb51e1e 2747 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2748 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2749 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2750 {
AzureIoTClient 11:31ebaeb51e1e 2751 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2752 }
AzureIoTClient 11:31ebaeb51e1e 2753 else
AzureIoTClient 11:31ebaeb51e1e 2754 {
AzureIoTClient 12:658ca6865de2 2755 /*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 2756 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 11:31ebaeb51e1e 2757 }
AzureIoTClient 11:31ebaeb51e1e 2758 return result;
AzureIoTClient 11:31ebaeb51e1e 2759 }
AzureIoTClient 19:f87dfe76bc70 2760
AzureIoTClient 19:f87dfe76bc70 2761 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SendMessageDisposition(MESSAGE_CALLBACK_INFO* message_data, IOTHUBMESSAGE_DISPOSITION_RESULT disposition)
AzureIoTClient 19:f87dfe76bc70 2762 {
AzureIoTClient 19:f87dfe76bc70 2763 (void)disposition;
AzureIoTClient 19:f87dfe76bc70 2764
AzureIoTClient 19:f87dfe76bc70 2765 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 19:f87dfe76bc70 2766 if (message_data)
AzureIoTClient 19:f87dfe76bc70 2767 {
AzureIoTClient 19:f87dfe76bc70 2768 if (message_data->messageHandle)
AzureIoTClient 19:f87dfe76bc70 2769 {
AzureIoTClient 19:f87dfe76bc70 2770 IoTHubMessage_Destroy(message_data->messageHandle);
AzureIoTClient 19:f87dfe76bc70 2771 result = IOTHUB_CLIENT_OK;
AzureIoTClient 19:f87dfe76bc70 2772 }
AzureIoTClient 19:f87dfe76bc70 2773 else
AzureIoTClient 19:f87dfe76bc70 2774 {
AzureIoTClient 19:f87dfe76bc70 2775 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_10_002: [If any of the messageData fields are NULL, IoTHubTransport_MQTT_Common_SendMessageDisposition shall fail and return IOTHUB_CLIENT_ERROR. ]*/
AzureIoTClient 19:f87dfe76bc70 2776 LogError("message handle is NULL");
AzureIoTClient 19:f87dfe76bc70 2777 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2778 }
AzureIoTClient 19:f87dfe76bc70 2779 free(message_data);
AzureIoTClient 19:f87dfe76bc70 2780 }
AzureIoTClient 19:f87dfe76bc70 2781 else
AzureIoTClient 19:f87dfe76bc70 2782 {
AzureIoTClient 19:f87dfe76bc70 2783 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_10_001: [If messageData is NULL, IoTHubTransport_MQTT_Common_SendMessageDisposition shall fail and return IOTHUB_CLIENT_ERROR. ]*/
AzureIoTClient 19:f87dfe76bc70 2784 LogError("message_data is NULL");
AzureIoTClient 19:f87dfe76bc70 2785 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2786 }
AzureIoTClient 19:f87dfe76bc70 2787 return result;
AzureIoTClient 19:f87dfe76bc70 2788 }
AzureIoTClient 19:f87dfe76bc70 2789