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@21:167f8fcf6fb1, 2017-04-06 (annotated)

Committer:
AzureIoTClient
Date:
Thu Apr 06 14:11:00 2017 -0700
Revision:
21:167f8fcf6fb1
Parent:
20:594780be216d
Child:
22:07fec4d325b6
1.1.11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 11:31ebaeb51e1e 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 11:31ebaeb51e1e 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 11:31ebaeb51e1e 3
AzureIoTClient 11:31ebaeb51e1e 4 #include <stdlib.h>
AzureIoTClient 12:658ca6865de2 5 #include <ctype.h>
AzureIoTClient 18:ec8e5e97c6a4 6 #include "azure_c_shared_utility/optimize_size.h"
AzureIoTClient 11:31ebaeb51e1e 7 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 11:31ebaeb51e1e 8
AzureIoTClient 11:31ebaeb51e1e 9 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 11:31ebaeb51e1e 10 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 11:31ebaeb51e1e 11 #include "azure_c_shared_utility/doublylinkedlist.h"
AzureIoTClient 11:31ebaeb51e1e 12 #include "azure_c_shared_utility/crt_abstractions.h"
AzureIoTClient 11:31ebaeb51e1e 13
AzureIoTClient 11:31ebaeb51e1e 14 #include "iothub_client_ll.h"
AzureIoTClient 11:31ebaeb51e1e 15 #include "iothub_client_options.h"
AzureIoTClient 11:31ebaeb51e1e 16 #include "iothub_client_private.h"
AzureIoTClient 11:31ebaeb51e1e 17 #include "azure_umqtt_c/mqtt_client.h"
AzureIoTClient 11:31ebaeb51e1e 18 #include "azure_c_shared_utility/sastoken.h"
AzureIoTClient 11:31ebaeb51e1e 19 #include "azure_c_shared_utility/tickcounter.h"
AzureIoTClient 11:31ebaeb51e1e 20
AzureIoTClient 11:31ebaeb51e1e 21 #include "azure_c_shared_utility/tlsio.h"
AzureIoTClient 11:31ebaeb51e1e 22 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 11:31ebaeb51e1e 23
AzureIoTClient 11:31ebaeb51e1e 24 #include "azure_c_shared_utility/string_tokenizer.h"
AzureIoTClient 20:594780be216d 25 #include "azure_c_shared_utility/shared_util_options.h"
AzureIoTClient 11:31ebaeb51e1e 26 #include "iothub_client_version.h"
AzureIoTClient 11:31ebaeb51e1e 27
AzureIoTClient 11:31ebaeb51e1e 28 #include "iothubtransport_mqtt_common.h"
AzureIoTClient 11:31ebaeb51e1e 29
AzureIoTClient 11:31ebaeb51e1e 30 #include <stdarg.h>
AzureIoTClient 11:31ebaeb51e1e 31 #include <stdio.h>
AzureIoTClient 11:31ebaeb51e1e 32
AzureIoTClient 11:31ebaeb51e1e 33 #include <limits.h>
AzureIoTClient 12:658ca6865de2 34 #include <inttypes.h>
AzureIoTClient 11:31ebaeb51e1e 35
AzureIoTClient 11:31ebaeb51e1e 36 #define SAS_TOKEN_DEFAULT_LIFETIME 3600
AzureIoTClient 11:31ebaeb51e1e 37 #define SAS_REFRESH_MULTIPLIER .8
AzureIoTClient 11:31ebaeb51e1e 38 #define EPOCH_TIME_T_VALUE 0
AzureIoTClient 11:31ebaeb51e1e 39 #define DEFAULT_MQTT_KEEPALIVE 4*60 // 4 min
AzureIoTClient 11:31ebaeb51e1e 40 #define BUILD_CONFIG_USERNAME 24
AzureIoTClient 11:31ebaeb51e1e 41 #define SAS_TOKEN_DEFAULT_LEN 10
AzureIoTClient 11:31ebaeb51e1e 42 #define RESEND_TIMEOUT_VALUE_MIN 1*60
AzureIoTClient 11:31ebaeb51e1e 43 #define MAX_SEND_RECOUNT_LIMIT 2
AzureIoTClient 11:31ebaeb51e1e 44 #define DEFAULT_CONNECTION_INTERVAL 30
AzureIoTClient 11:31ebaeb51e1e 45 #define FAILED_CONN_BACKOFF_VALUE 5
AzureIoTClient 12:658ca6865de2 46 #define STATUS_CODE_FAILURE_VALUE 500
AzureIoTClient 12:658ca6865de2 47 #define STATUS_CODE_TIMEOUT_VALUE 408
AzureIoTClient 17:774695cb8554 48 #define ERROR_TIME_FOR_RETRY_SECS 5 // We won't retry more than once every 5 seconds
AzureIoTClient 12:658ca6865de2 49
AzureIoTClient 12:658ca6865de2 50 static const char TOPIC_DEVICE_TWIN_PREFIX[] = "$iothub/twin";
AzureIoTClient 12:658ca6865de2 51 static const char TOPIC_DEVICE_METHOD_PREFIX[] = "$iothub/methods";
AzureIoTClient 12:658ca6865de2 52
AzureIoTClient 12:658ca6865de2 53 static const char* TOPIC_GET_DESIRED_STATE = "$iothub/twin/res/#";
AzureIoTClient 12:658ca6865de2 54 static const char* TOPIC_NOTIFICATION_STATE = "$iothub/twin/PATCH/properties/desired/#";
AzureIoTClient 11:31ebaeb51e1e 55
AzureIoTClient 11:31ebaeb51e1e 56 static const char* TOPIC_DEVICE_MSG = "devices/%s/messages/devicebound/#";
AzureIoTClient 11:31ebaeb51e1e 57 static const char* TOPIC_DEVICE_DEVICE = "devices/%s/messages/events/";
AzureIoTClient 12:658ca6865de2 58
AzureIoTClient 12:658ca6865de2 59 static const char* TOPIC_DEVICE_METHOD_SUBSCRIBE = "$iothub/methods/POST/#";
AzureIoTClient 12:658ca6865de2 60 static const char* TOPIC_DEVICE_METHOD_RESPONSE = "$iothub/methods/res";
AzureIoTClient 12:658ca6865de2 61
AzureIoTClient 12:658ca6865de2 62 static const char* IOTHUB_API_VERSION = "2016-11-14";
AzureIoTClient 12:658ca6865de2 63
AzureIoTClient 11:31ebaeb51e1e 64 static const char* PROPERTY_SEPARATOR = "&";
AzureIoTClient 12:658ca6865de2 65 static const char* REPORTED_PROPERTIES_TOPIC = "$iothub/twin/PATCH/properties/reported/?$rid=%"PRIu16;
AzureIoTClient 12:658ca6865de2 66 static const char* GET_PROPERTIES_TOPIC = "$iothub/twin/GET/?$rid=%"PRIu16;
AzureIoTClient 14:4dc2b011be33 67 static const char* DEVICE_METHOD_RESPONSE_TOPIC = "$iothub/methods/res/%d/?$rid=%s";
AzureIoTClient 12:658ca6865de2 68
AzureIoTClient 12:658ca6865de2 69 static const char* REQUEST_ID_PROPERTY = "?$rid=";
AzureIoTClient 11:31ebaeb51e1e 70
AzureIoTClient 18:ec8e5e97c6a4 71 static const char* MESSAGE_ID_PROPERTY = "mid";
AzureIoTClient 18:ec8e5e97c6a4 72 static const char* CORRELATION_ID_PROPERTY = "cid";
AzureIoTClient 18:ec8e5e97c6a4 73
AzureIoTClient 11:31ebaeb51e1e 74 #define UNSUBSCRIBE_FROM_TOPIC 0x0000
AzureIoTClient 12:658ca6865de2 75 #define SUBSCRIBE_GET_REPORTED_STATE_TOPIC 0x0001
AzureIoTClient 12:658ca6865de2 76 #define SUBSCRIBE_NOTIFICATION_STATE_TOPIC 0x0002
AzureIoTClient 11:31ebaeb51e1e 77 #define SUBSCRIBE_TELEMETRY_TOPIC 0x0004
AzureIoTClient 12:658ca6865de2 78 #define SUBSCRIBE_METHODS_TOPIC 0x0008
AzureIoTClient 12:658ca6865de2 79 #define SUBSCRIBE_DEVICE_METHOD_TOPIC 0x0010
AzureIoTClient 12:658ca6865de2 80 #define SUBSCRIBE_TOPIC_COUNT 4
AzureIoTClient 11:31ebaeb51e1e 81
AzureIoTClient 17:774695cb8554 82 DEFINE_ENUM_STRINGS(MQTT_CLIENT_EVENT_ERROR, MQTT_CLIENT_EVENT_ERROR_VALUES)
AzureIoTClient 17:774695cb8554 83
AzureIoTClient 11:31ebaeb51e1e 84 typedef struct SYSTEM_PROPERTY_INFO_TAG
AzureIoTClient 11:31ebaeb51e1e 85 {
AzureIoTClient 11:31ebaeb51e1e 86 const char* propName;
AzureIoTClient 11:31ebaeb51e1e 87 size_t propLength;
AzureIoTClient 11:31ebaeb51e1e 88 } SYSTEM_PROPERTY_INFO;
AzureIoTClient 11:31ebaeb51e1e 89
AzureIoTClient 11:31ebaeb51e1e 90 static SYSTEM_PROPERTY_INFO sysPropList[] = {
AzureIoTClient 11:31ebaeb51e1e 91 { "%24.exp", 7 },
AzureIoTClient 11:31ebaeb51e1e 92 { "%24.mid", 7 },
AzureIoTClient 11:31ebaeb51e1e 93 { "%24.uid", 7 },
AzureIoTClient 11:31ebaeb51e1e 94 { "%24.to", 6 },
AzureIoTClient 11:31ebaeb51e1e 95 { "%24.cid", 7 },
AzureIoTClient 11:31ebaeb51e1e 96 { "devices/", 8 },
AzureIoTClient 11:31ebaeb51e1e 97 { "iothub-operation", 16 },
AzureIoTClient 11:31ebaeb51e1e 98 { "iothub-ack", 10 }
AzureIoTClient 11:31ebaeb51e1e 99 };
AzureIoTClient 11:31ebaeb51e1e 100
AzureIoTClient 12:658ca6865de2 101 typedef enum DEVICE_TWIN_MSG_TYPE_TAG
AzureIoTClient 12:658ca6865de2 102 {
AzureIoTClient 12:658ca6865de2 103 REPORTED_STATE,
AzureIoTClient 12:658ca6865de2 104 RETRIEVE_PROPERTIES
AzureIoTClient 12:658ca6865de2 105 } DEVICE_TWIN_MSG_TYPE;
AzureIoTClient 12:658ca6865de2 106
AzureIoTClient 11:31ebaeb51e1e 107 typedef enum MQTT_TRANSPORT_CREDENTIAL_TYPE_TAG
AzureIoTClient 11:31ebaeb51e1e 108 {
AzureIoTClient 11:31ebaeb51e1e 109 CREDENTIAL_NOT_BUILD,
AzureIoTClient 11:31ebaeb51e1e 110 X509,
AzureIoTClient 11:31ebaeb51e1e 111 SAS_TOKEN_FROM_USER,
AzureIoTClient 11:31ebaeb51e1e 112 DEVICE_KEY,
AzureIoTClient 11:31ebaeb51e1e 113 } MQTT_TRANSPORT_CREDENTIAL_TYPE;
AzureIoTClient 11:31ebaeb51e1e 114
AzureIoTClient 12:658ca6865de2 115 typedef int(*RETRY_POLICY)(bool *permit, size_t* delay, void* retryContextCallback);
AzureIoTClient 12:658ca6865de2 116
AzureIoTClient 12:658ca6865de2 117 typedef struct RETRY_LOGIC_TAG
AzureIoTClient 12:658ca6865de2 118 {
AzureIoTClient 17:774695cb8554 119 IOTHUB_CLIENT_RETRY_POLICY retryPolicy; // Type of policy we're using
AzureIoTClient 17:774695cb8554 120 size_t retryTimeoutLimitInSeconds; // If we don't connect in this many seconds, give up even trying.
AzureIoTClient 17:774695cb8554 121 RETRY_POLICY fnRetryPolicy; // Pointer to the policy function
AzureIoTClient 17:774695cb8554 122 time_t start; // When did we start retrying?
AzureIoTClient 17:774695cb8554 123 time_t lastConnect; // When did we last try to connect?
AzureIoTClient 17:774695cb8554 124 bool retryStarted; // true if the retry timer is set and we're trying to retry
AzureIoTClient 17:774695cb8554 125 bool retryExpired; // true if we haven't connected in retryTimeoutLimitInSeconds seconds
AzureIoTClient 17:774695cb8554 126 bool firstAttempt; // true on init so we can connect the first time without waiting for any timeouts.
AzureIoTClient 17:774695cb8554 127 size_t retrycount; // How many times have we tried connecting?
AzureIoTClient 17:774695cb8554 128 size_t delayFromLastConnectToRetry; // last time delta betweewn retry attempts.
AzureIoTClient 12:658ca6865de2 129 } RETRY_LOGIC;
AzureIoTClient 12:658ca6865de2 130
AzureIoTClient 20:594780be216d 131 typedef enum MQTT_CLIENT_STATUS_TAG
AzureIoTClient 20:594780be216d 132 {
AzureIoTClient 21:167f8fcf6fb1 133 MQTT_CLIENT_STATUS_NOT_CONNECTED,
AzureIoTClient 21:167f8fcf6fb1 134 MQTT_CLIENT_STATUS_CONNECTING,
AzureIoTClient 21:167f8fcf6fb1 135 MQTT_CLIENT_STATUS_CONNECTED
AzureIoTClient 20:594780be216d 136 } MQTT_CLIENT_STATUS;
AzureIoTClient 20:594780be216d 137
AzureIoTClient 11:31ebaeb51e1e 138 typedef struct MQTTTRANSPORT_HANDLE_DATA_TAG
AzureIoTClient 11:31ebaeb51e1e 139 {
AzureIoTClient 11:31ebaeb51e1e 140 // Topic control
AzureIoTClient 11:31ebaeb51e1e 141 STRING_HANDLE topic_MqttEvent;
AzureIoTClient 11:31ebaeb51e1e 142 STRING_HANDLE topic_MqttMessage;
AzureIoTClient 12:658ca6865de2 143 STRING_HANDLE topic_GetState;
AzureIoTClient 12:658ca6865de2 144 STRING_HANDLE topic_NotifyState;
AzureIoTClient 12:658ca6865de2 145
AzureIoTClient 12:658ca6865de2 146 STRING_HANDLE topic_DeviceMethods;
AzureIoTClient 11:31ebaeb51e1e 147
AzureIoTClient 11:31ebaeb51e1e 148 uint32_t topics_ToSubscribe;
AzureIoTClient 12:658ca6865de2 149
AzureIoTClient 11:31ebaeb51e1e 150 // Connection related constants
AzureIoTClient 11:31ebaeb51e1e 151 STRING_HANDLE hostAddress;
AzureIoTClient 11:31ebaeb51e1e 152 STRING_HANDLE device_id;
AzureIoTClient 11:31ebaeb51e1e 153 STRING_HANDLE devicesPath;
AzureIoTClient 11:31ebaeb51e1e 154 int portNum;
AzureIoTClient 11:31ebaeb51e1e 155
AzureIoTClient 11:31ebaeb51e1e 156 MQTT_GET_IO_TRANSPORT get_io_transport;
AzureIoTClient 11:31ebaeb51e1e 157
AzureIoTClient 11:31ebaeb51e1e 158 // 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 159 // passed through the username portion of the connection frame.
AzureIoTClient 11:31ebaeb51e1e 160 // The second segment will contain the device id. The two segments are delemited by a "/".
AzureIoTClient 11:31ebaeb51e1e 161 // The first segment can be a maximum 256 characters.
AzureIoTClient 11:31ebaeb51e1e 162 // The second segment can be a maximum 128 characters.
AzureIoTClient 11:31ebaeb51e1e 163 // With the / delimeter you have 384 chars (Plus a terminator of 0).
AzureIoTClient 11:31ebaeb51e1e 164 STRING_HANDLE configPassedThroughUsername;
AzureIoTClient 11:31ebaeb51e1e 165
AzureIoTClient 11:31ebaeb51e1e 166 // Upper layer
AzureIoTClient 11:31ebaeb51e1e 167 IOTHUB_CLIENT_LL_HANDLE llClientHandle;
AzureIoTClient 11:31ebaeb51e1e 168
AzureIoTClient 11:31ebaeb51e1e 169 // Protocol
AzureIoTClient 11:31ebaeb51e1e 170 MQTT_CLIENT_HANDLE mqttClient;
AzureIoTClient 11:31ebaeb51e1e 171 XIO_HANDLE xioTransport;
AzureIoTClient 11:31ebaeb51e1e 172
AzureIoTClient 11:31ebaeb51e1e 173 // Session - connection
AzureIoTClient 11:31ebaeb51e1e 174 uint16_t packetId;
AzureIoTClient 11:31ebaeb51e1e 175
AzureIoTClient 11:31ebaeb51e1e 176 // Connection state control
AzureIoTClient 11:31ebaeb51e1e 177 bool isRegistered;
AzureIoTClient 20:594780be216d 178 MQTT_CLIENT_STATUS mqttClientStatus;
AzureIoTClient 11:31ebaeb51e1e 179 bool isDestroyCalled;
AzureIoTClient 12:658ca6865de2 180 bool device_twin_get_sent;
AzureIoTClient 12:658ca6865de2 181 bool isRecoverableError;
AzureIoTClient 11:31ebaeb51e1e 182 uint16_t keepAliveValue;
Azure.IoT.Build 13:606465879c57 183 tickcounter_ms_t mqtt_connect_time;
AzureIoTClient 11:31ebaeb51e1e 184 size_t connectFailCount;
Azure.IoT.Build 13:606465879c57 185 tickcounter_ms_t connectTick;
AzureIoTClient 11:31ebaeb51e1e 186 bool log_trace;
AzureIoTClient 11:31ebaeb51e1e 187 bool raw_trace;
Azure.IoT.Build 13:606465879c57 188 TICK_COUNTER_HANDLE msgTickCounter;
AzureIoTClient 11:31ebaeb51e1e 189
AzureIoTClient 11:31ebaeb51e1e 190 // Internal lists for message tracking
AzureIoTClient 11:31ebaeb51e1e 191 PDLIST_ENTRY waitingToSend;
AzureIoTClient 12:658ca6865de2 192 DLIST_ENTRY ack_waiting_queue;
AzureIoTClient 12:658ca6865de2 193
AzureIoTClient 11:31ebaeb51e1e 194 // Message tracking
AzureIoTClient 11:31ebaeb51e1e 195 CONTROL_PACKET_TYPE currPacketState;
AzureIoTClient 11:31ebaeb51e1e 196
AzureIoTClient 11:31ebaeb51e1e 197 // Telemetry specific
AzureIoTClient 11:31ebaeb51e1e 198 DLIST_ENTRY telemetry_waitingForAck;
AzureIoTClient 12:658ca6865de2 199
AzureIoTClient 12:658ca6865de2 200 //Retry Logic
AzureIoTClient 12:658ca6865de2 201 RETRY_LOGIC* retryLogic;
AzureIoTClient 20:594780be216d 202
AzureIoTClient 21:167f8fcf6fb1 203 // Auth module used to generating handle authorization
AzureIoTClient 21:167f8fcf6fb1 204 // with either SAS Token, x509 Certs, and Device SAS Token
AzureIoTClient 21:167f8fcf6fb1 205 IOTHUB_AUTHORIZATION_HANDLE authorization_module;
AzureIoTClient 21:167f8fcf6fb1 206
AzureIoTClient 20:594780be216d 207 char* http_proxy_hostname;
AzureIoTClient 20:594780be216d 208 int http_proxy_port;
AzureIoTClient 20:594780be216d 209 char* http_proxy_username;
AzureIoTClient 20:594780be216d 210 char* http_proxy_password;
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 20:594780be216d 240 static void free_proxy_data(MQTTTRANSPORT_HANDLE_DATA* mqtt_transport_instance)
AzureIoTClient 20:594780be216d 241 {
AzureIoTClient 20:594780be216d 242 if (mqtt_transport_instance->http_proxy_hostname != NULL)
AzureIoTClient 20:594780be216d 243 {
AzureIoTClient 20:594780be216d 244 free(mqtt_transport_instance->http_proxy_hostname);
AzureIoTClient 20:594780be216d 245 mqtt_transport_instance->http_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 246 }
AzureIoTClient 20:594780be216d 247
AzureIoTClient 20:594780be216d 248 if (mqtt_transport_instance->http_proxy_username != NULL)
AzureIoTClient 20:594780be216d 249 {
AzureIoTClient 20:594780be216d 250 free(mqtt_transport_instance->http_proxy_username);
AzureIoTClient 20:594780be216d 251 mqtt_transport_instance->http_proxy_username = NULL;
AzureIoTClient 20:594780be216d 252 }
AzureIoTClient 20:594780be216d 253
AzureIoTClient 20:594780be216d 254 if (mqtt_transport_instance->http_proxy_password != NULL)
AzureIoTClient 20:594780be216d 255 {
AzureIoTClient 20:594780be216d 256 free(mqtt_transport_instance->http_proxy_password);
AzureIoTClient 20:594780be216d 257 mqtt_transport_instance->http_proxy_password = NULL;
AzureIoTClient 20:594780be216d 258 }
AzureIoTClient 20:594780be216d 259 }
AzureIoTClient 20:594780be216d 260
AzureIoTClient 12:658ca6865de2 261 static int RetryPolicy_Exponential_BackOff_With_Jitter(bool *permit, size_t* delay, void* retryContextCallback)
AzureIoTClient 12:658ca6865de2 262 {
AzureIoTClient 12:658ca6865de2 263 int result;
AzureIoTClient 12:658ca6865de2 264
AzureIoTClient 12:658ca6865de2 265 if (retryContextCallback != NULL && permit != NULL && delay != NULL)
AzureIoTClient 12:658ca6865de2 266 {
AzureIoTClient 12:658ca6865de2 267 RETRY_LOGIC *retryLogic = (RETRY_LOGIC*)retryContextCallback;
AzureIoTClient 12:658ca6865de2 268 int numOfFailures = (int) retryLogic->retrycount;
AzureIoTClient 12:658ca6865de2 269 *permit = true;
AzureIoTClient 12:658ca6865de2 270
AzureIoTClient 12:658ca6865de2 271 /*Intentionally not evaluating fraction of a second as it woudn't work on all platforms*/
AzureIoTClient 12:658ca6865de2 272
AzureIoTClient 12:658ca6865de2 273 /* Exponential backoff with jitter
AzureIoTClient 12:658ca6865de2 274 1. delay = (pow(2, attempt) - 1 ) / 2
AzureIoTClient 12:658ca6865de2 275 2. delay with jitter = delay + rand_between(0, delay/2)
AzureIoTClient 12:658ca6865de2 276 */
AzureIoTClient 12:658ca6865de2 277
AzureIoTClient 12:658ca6865de2 278 size_t halfDelta = ((1 << numOfFailures) - 1) / 4;
AzureIoTClient 12:658ca6865de2 279 if (halfDelta > 0)
AzureIoTClient 12:658ca6865de2 280 {
AzureIoTClient 12:658ca6865de2 281 *delay = halfDelta + (rand() % (int)halfDelta);
AzureIoTClient 12:658ca6865de2 282 }
AzureIoTClient 12:658ca6865de2 283 else
AzureIoTClient 12:658ca6865de2 284 {
AzureIoTClient 12:658ca6865de2 285 *delay = halfDelta;
AzureIoTClient 12:658ca6865de2 286 }
AzureIoTClient 12:658ca6865de2 287
AzureIoTClient 12:658ca6865de2 288 result = 0;
AzureIoTClient 12:658ca6865de2 289 }
AzureIoTClient 12:658ca6865de2 290 else
AzureIoTClient 12:658ca6865de2 291 {
AzureIoTClient 18:ec8e5e97c6a4 292 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 293 }
AzureIoTClient 12:658ca6865de2 294 return result;
AzureIoTClient 12:658ca6865de2 295 }
AzureIoTClient 12:658ca6865de2 296
AzureIoTClient 12:658ca6865de2 297 static RETRY_LOGIC* CreateRetryLogic(IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 298 {
AzureIoTClient 12:658ca6865de2 299 RETRY_LOGIC *retryLogic;
AzureIoTClient 12:658ca6865de2 300 retryLogic = (RETRY_LOGIC*)malloc(sizeof(RETRY_LOGIC));
AzureIoTClient 12:658ca6865de2 301 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 302 {
AzureIoTClient 12:658ca6865de2 303 retryLogic->retryPolicy = retryPolicy;
AzureIoTClient 12:658ca6865de2 304 retryLogic->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
AzureIoTClient 12:658ca6865de2 305 switch (retryLogic->retryPolicy)
AzureIoTClient 12:658ca6865de2 306 {
AzureIoTClient 12:658ca6865de2 307 case IOTHUB_CLIENT_RETRY_NONE:
AzureIoTClient 12:658ca6865de2 308 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 309 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 310 break;
AzureIoTClient 12:658ca6865de2 311 case IOTHUB_CLIENT_RETRY_IMMEDIATE:
AzureIoTClient 12:658ca6865de2 312 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 313 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 314 break;
AzureIoTClient 12:658ca6865de2 315 case IOTHUB_CLIENT_RETRY_INTERVAL:
AzureIoTClient 12:658ca6865de2 316 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 317 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 318 break;
AzureIoTClient 12:658ca6865de2 319 case IOTHUB_CLIENT_RETRY_LINEAR_BACKOFF:
AzureIoTClient 12:658ca6865de2 320 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 321 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 322 break;
AzureIoTClient 12:658ca6865de2 323 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF:
AzureIoTClient 12:658ca6865de2 324 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 325 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 326 break;
AzureIoTClient 12:658ca6865de2 327 case IOTHUB_CLIENT_RETRY_RANDOM:
AzureIoTClient 12:658ca6865de2 328 LogError("Not implemented chosing default");
AzureIoTClient 12:658ca6865de2 329 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 330 break;
AzureIoTClient 12:658ca6865de2 331 case IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER:
AzureIoTClient 12:658ca6865de2 332 default:
AzureIoTClient 12:658ca6865de2 333 retryLogic->fnRetryPolicy = &RetryPolicy_Exponential_BackOff_With_Jitter;
AzureIoTClient 12:658ca6865de2 334 break;
AzureIoTClient 12:658ca6865de2 335 }
AzureIoTClient 12:658ca6865de2 336 retryLogic->start = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 337 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 338 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 339 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 340 retryLogic->retryExpired = false;
AzureIoTClient 17:774695cb8554 341 retryLogic->firstAttempt = true;
AzureIoTClient 12:658ca6865de2 342 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 343 }
AzureIoTClient 12:658ca6865de2 344 else
AzureIoTClient 12:658ca6865de2 345 {
AzureIoTClient 12:658ca6865de2 346 LogError("Init retry logic failed");
AzureIoTClient 12:658ca6865de2 347 }
AzureIoTClient 12:658ca6865de2 348 return retryLogic;
AzureIoTClient 12:658ca6865de2 349 }
AzureIoTClient 12:658ca6865de2 350
AzureIoTClient 12:658ca6865de2 351 static void DestroyRetryLogic(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 352 {
AzureIoTClient 12:658ca6865de2 353 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 354 {
AzureIoTClient 12:658ca6865de2 355 free(retryLogic);
AzureIoTClient 12:658ca6865de2 356 retryLogic = NULL;
AzureIoTClient 12:658ca6865de2 357 }
AzureIoTClient 12:658ca6865de2 358 }
AzureIoTClient 12:658ca6865de2 359
AzureIoTClient 12:658ca6865de2 360 // Called when first attempted to re-connect
AzureIoTClient 12:658ca6865de2 361 static void StartRetryTimer(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 == false)
AzureIoTClient 12:658ca6865de2 366 {
AzureIoTClient 12:658ca6865de2 367 retryLogic->start = get_time(NULL);
AzureIoTClient 12:658ca6865de2 368 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 369 retryLogic->retryStarted = true;
AzureIoTClient 12:658ca6865de2 370 }
AzureIoTClient 12:658ca6865de2 371
AzureIoTClient 21:167f8fcf6fb1 372 retryLogic->firstAttempt = false;
AzureIoTClient 12:658ca6865de2 373 }
AzureIoTClient 12:658ca6865de2 374 else
AzureIoTClient 12:658ca6865de2 375 {
AzureIoTClient 12:658ca6865de2 376 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 377 }
AzureIoTClient 12:658ca6865de2 378 }
AzureIoTClient 12:658ca6865de2 379
AzureIoTClient 12:658ca6865de2 380 // Called when connected
AzureIoTClient 12:658ca6865de2 381 static void StopRetryTimer(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 382 {
AzureIoTClient 12:658ca6865de2 383 if (retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 384 {
AzureIoTClient 12:658ca6865de2 385 if (retryLogic->retryStarted == true)
AzureIoTClient 12:658ca6865de2 386 {
AzureIoTClient 12:658ca6865de2 387 retryLogic->retryStarted = false;
AzureIoTClient 12:658ca6865de2 388 retryLogic->delayFromLastConnectToRetry = 0;
AzureIoTClient 12:658ca6865de2 389 retryLogic->lastConnect = EPOCH_TIME_T_VALUE;
AzureIoTClient 12:658ca6865de2 390 retryLogic->retrycount = 0;
AzureIoTClient 12:658ca6865de2 391 }
AzureIoTClient 12:658ca6865de2 392 else
AzureIoTClient 12:658ca6865de2 393 {
AzureIoTClient 12:658ca6865de2 394 LogError("Start retry logic before stopping");
AzureIoTClient 12:658ca6865de2 395 }
AzureIoTClient 12:658ca6865de2 396 }
AzureIoTClient 12:658ca6865de2 397 else
AzureIoTClient 12:658ca6865de2 398 {
AzureIoTClient 12:658ca6865de2 399 LogError("Retry Logic parameter. NULL.");
AzureIoTClient 12:658ca6865de2 400 }
AzureIoTClient 12:658ca6865de2 401 }
AzureIoTClient 12:658ca6865de2 402
AzureIoTClient 12:658ca6865de2 403 int IoTHubTransport_MQTT_Common_SetRetryPolicy(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
AzureIoTClient 12:658ca6865de2 404 {
AzureIoTClient 12:658ca6865de2 405 int result;
AzureIoTClient 12:658ca6865de2 406 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 407 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 408 {
AzureIoTClient 12:658ca6865de2 409 /* 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 410 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 411 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 412 }
AzureIoTClient 12:658ca6865de2 413 else
AzureIoTClient 12:658ca6865de2 414 {
AzureIoTClient 12:658ca6865de2 415 if (transport_data->retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 416 {
AzureIoTClient 12:658ca6865de2 417 /*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 418 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 419 }
AzureIoTClient 12:658ca6865de2 420 else
AzureIoTClient 12:658ca6865de2 421 {
AzureIoTClient 12:658ca6865de2 422 /*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 423 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 12:658ca6865de2 424 transport_data->retryLogic = CreateRetryLogic(retryPolicy, retryTimeoutLimitInSeconds);
AzureIoTClient 12:658ca6865de2 425 }
AzureIoTClient 12:658ca6865de2 426
AzureIoTClient 12:658ca6865de2 427 if (transport_data->retryLogic != NULL)
AzureIoTClient 12:658ca6865de2 428 {
AzureIoTClient 12:658ca6865de2 429 /*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 430 result = 0;
AzureIoTClient 12:658ca6865de2 431 }
AzureIoTClient 12:658ca6865de2 432 else
AzureIoTClient 12:658ca6865de2 433 {
AzureIoTClient 12:658ca6865de2 434 /*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 435 LogError("Retry Logic is not created");
AzureIoTClient 18:ec8e5e97c6a4 436 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 437 }
AzureIoTClient 12:658ca6865de2 438 }
AzureIoTClient 12:658ca6865de2 439 return result;
AzureIoTClient 12:658ca6865de2 440 }
AzureIoTClient 12:658ca6865de2 441
AzureIoTClient 12:658ca6865de2 442 // Called for every do_work when connection is broken
AzureIoTClient 12:658ca6865de2 443 static bool CanRetry(RETRY_LOGIC *retryLogic)
AzureIoTClient 12:658ca6865de2 444 {
AzureIoTClient 12:658ca6865de2 445 bool result;
AzureIoTClient 12:658ca6865de2 446 time_t now = get_time(NULL);
AzureIoTClient 12:658ca6865de2 447
AzureIoTClient 12:658ca6865de2 448 if (retryLogic == NULL)
AzureIoTClient 12:658ca6865de2 449 {
AzureIoTClient 12:658ca6865de2 450 LogError("Retry Logic is not created, retrying forever");
AzureIoTClient 12:658ca6865de2 451 result = true;
AzureIoTClient 12:658ca6865de2 452 }
AzureIoTClient 17:774695cb8554 453 else if (now < 0 || retryLogic->start < 0)
AzureIoTClient 12:658ca6865de2 454 {
AzureIoTClient 12:658ca6865de2 455 LogError("Time could not be retrieved, retrying forever");
AzureIoTClient 12:658ca6865de2 456 result = true;
AzureIoTClient 12:658ca6865de2 457 }
AzureIoTClient 12:658ca6865de2 458 else if (retryLogic->retryExpired)
AzureIoTClient 12:658ca6865de2 459 {
AzureIoTClient 17:774695cb8554 460 // We've given up trying to retry. Don't do anything.
AzureIoTClient 12:658ca6865de2 461 result = false;
AzureIoTClient 12:658ca6865de2 462 }
AzureIoTClient 17:774695cb8554 463 else if (retryLogic->firstAttempt)
AzureIoTClient 12:658ca6865de2 464 {
AzureIoTClient 17:774695cb8554 465 // This is the first time ever running through this code. We need to try connecting no matter what.
AzureIoTClient 12:658ca6865de2 466 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 467 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 468 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 469 result = true;
AzureIoTClient 12:658ca6865de2 470 }
AzureIoTClient 12:658ca6865de2 471 else
AzureIoTClient 12:658ca6865de2 472 {
AzureIoTClient 17:774695cb8554 473 // Are we trying to retry?
AzureIoTClient 12:658ca6865de2 474 if (retryLogic->retryStarted)
AzureIoTClient 12:658ca6865de2 475 {
AzureIoTClient 17:774695cb8554 476 // How long since we last tried to connect? Store this in difftime.
AzureIoTClient 12:658ca6865de2 477 double diffTime = get_difftime(now, retryLogic->lastConnect);
AzureIoTClient 17:774695cb8554 478
AzureIoTClient 17:774695cb8554 479 // Has it been less than 5 seconds since we tried last? If so, we have to
AzureIoTClient 17:774695cb8554 480 // be careful so we don't hit the server too quickly.
AzureIoTClient 12:658ca6865de2 481 if (diffTime <= ERROR_TIME_FOR_RETRY_SECS)
AzureIoTClient 12:658ca6865de2 482 {
AzureIoTClient 17:774695cb8554 483 // As do_work can be called within as little as 1 ms, wait to avoid throtling server
AzureIoTClient 17:774695cb8554 484 result = false;
AzureIoTClient 12:658ca6865de2 485 }
AzureIoTClient 12:658ca6865de2 486 else if (diffTime < retryLogic->delayFromLastConnectToRetry)
AzureIoTClient 12:658ca6865de2 487 {
AzureIoTClient 17:774695cb8554 488 // delayFromLastConnectionToRetry is either 0 (the first time around)
AzureIoTClient 17:774695cb8554 489 // or it's the backoff delta from the last time through the loop.
AzureIoTClient 17:774695cb8554 490 // If we're less than that, don't even bother trying. It's
AzureIoTClient 12:658ca6865de2 491 // Too early to retry
AzureIoTClient 12:658ca6865de2 492 result = false;
AzureIoTClient 12:658ca6865de2 493 }
AzureIoTClient 12:658ca6865de2 494 else
AzureIoTClient 12:658ca6865de2 495 {
AzureIoTClient 12:658ca6865de2 496 // last retry time evaluated have crossed, determine when to try next
AzureIoTClient 17:774695cb8554 497 // In other words, it migth be time to retry, so we should validate with the retry policy function.
AzureIoTClient 12:658ca6865de2 498 bool permit = false;
AzureIoTClient 12:658ca6865de2 499 size_t delay;
AzureIoTClient 12:658ca6865de2 500
AzureIoTClient 12:658ca6865de2 501 if (retryLogic->fnRetryPolicy != NULL && (retryLogic->fnRetryPolicy(&permit, &delay, retryLogic) == 0))
AzureIoTClient 12:658ca6865de2 502 {
AzureIoTClient 17:774695cb8554 503 // Does the policy function want us to retry (permit == true), or are we still allowed to retry?
AzureIoTClient 17:774695cb8554 504 // (in other words, are we within retryTimeoutLimitInSeconds seconds since starting to retry?)
AzureIoTClient 21:167f8fcf6fb1 505 // If so, see if we _really_ want to retry.
AzureIoTClient 12:658ca6865de2 506 if ((permit == true) && ((retryLogic->retryTimeoutLimitInSeconds == 0) || retryLogic->retryTimeoutLimitInSeconds >= (delay + get_difftime(now, retryLogic->start))))
AzureIoTClient 12:658ca6865de2 507 {
AzureIoTClient 12:658ca6865de2 508 retryLogic->delayFromLastConnectToRetry = delay;
AzureIoTClient 12:658ca6865de2 509
AzureIoTClient 12:658ca6865de2 510 LogInfo("Evaluated delay %d at %d attempt to retry\n", delay, retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 511
AzureIoTClient 17:774695cb8554 512 // If the retry policy is telling us to connect right away ( <= ERROR_TIME_FOR_RETRY_SECS),
AzureIoTClient 17:774695cb8554 513 // or if enough time has elapsed, then we retry.
AzureIoTClient 17:774695cb8554 514 if ((retryLogic->delayFromLastConnectToRetry <= ERROR_TIME_FOR_RETRY_SECS) ||
AzureIoTClient 17:774695cb8554 515 (diffTime >= retryLogic->delayFromLastConnectToRetry))
AzureIoTClient 12:658ca6865de2 516 {
AzureIoTClient 12:658ca6865de2 517 retryLogic->lastConnect = now;
AzureIoTClient 12:658ca6865de2 518 retryLogic->retrycount++;
AzureIoTClient 12:658ca6865de2 519 result = true;
AzureIoTClient 12:658ca6865de2 520 }
AzureIoTClient 12:658ca6865de2 521 else
AzureIoTClient 12:658ca6865de2 522 {
AzureIoTClient 17:774695cb8554 523 // To soon to retry according to policy.
AzureIoTClient 12:658ca6865de2 524 result = false;
AzureIoTClient 12:658ca6865de2 525 }
AzureIoTClient 12:658ca6865de2 526 }
AzureIoTClient 12:658ca6865de2 527 else
AzureIoTClient 12:658ca6865de2 528 {
AzureIoTClient 17:774695cb8554 529 // Retry expired. Stop trying.
AzureIoTClient 12:658ca6865de2 530 LogError("Retry timeout expired after %d attempts", retryLogic->retrycount);
AzureIoTClient 12:658ca6865de2 531 retryLogic->retryExpired = true;
AzureIoTClient 12:658ca6865de2 532 StopRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 533 result = false;
AzureIoTClient 12:658ca6865de2 534 }
AzureIoTClient 12:658ca6865de2 535 }
AzureIoTClient 12:658ca6865de2 536 else
AzureIoTClient 12:658ca6865de2 537 {
AzureIoTClient 17:774695cb8554 538 // We don't have a retry policy. Sorry, can't even guess. Don't bother even trying to retry.
AzureIoTClient 12:658ca6865de2 539 LogError("Cannot evaluate the next best time to retry");
AzureIoTClient 12:658ca6865de2 540 result = false;
AzureIoTClient 12:658ca6865de2 541 }
AzureIoTClient 12:658ca6865de2 542 }
AzureIoTClient 12:658ca6865de2 543 }
AzureIoTClient 12:658ca6865de2 544 else
AzureIoTClient 12:658ca6865de2 545 {
AzureIoTClient 17:774695cb8554 546 // Since this function is only called when the connection is
AzureIoTClient 17:774695cb8554 547 // already broken, we can start doing the rety logic. We'll do the
AzureIoTClient 17:774695cb8554 548 // actual interval checking next time around this loop.
AzureIoTClient 12:658ca6865de2 549 StartRetryTimer(retryLogic);
AzureIoTClient 12:658ca6865de2 550 //wait for next do work to evaluate next best attempt
AzureIoTClient 12:658ca6865de2 551 result = false;
AzureIoTClient 12:658ca6865de2 552 }
AzureIoTClient 12:658ca6865de2 553 }
AzureIoTClient 12:658ca6865de2 554 return result;
AzureIoTClient 12:658ca6865de2 555 }
AzureIoTClient 12:658ca6865de2 556
AzureIoTClient 12:658ca6865de2 557
AzureIoTClient 11:31ebaeb51e1e 558 static uint16_t get_next_packet_id(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 559 {
AzureIoTClient 11:31ebaeb51e1e 560 if (transport_data->packetId+1 >= USHRT_MAX)
AzureIoTClient 11:31ebaeb51e1e 561 {
AzureIoTClient 11:31ebaeb51e1e 562 transport_data->packetId = 1;
AzureIoTClient 11:31ebaeb51e1e 563 }
AzureIoTClient 11:31ebaeb51e1e 564 else
AzureIoTClient 11:31ebaeb51e1e 565 {
AzureIoTClient 11:31ebaeb51e1e 566 transport_data->packetId++;
AzureIoTClient 11:31ebaeb51e1e 567 }
AzureIoTClient 11:31ebaeb51e1e 568 return transport_data->packetId;
AzureIoTClient 11:31ebaeb51e1e 569 }
AzureIoTClient 11:31ebaeb51e1e 570
AzureIoTClient 11:31ebaeb51e1e 571 static const char* retrieve_mqtt_return_codes(CONNECT_RETURN_CODE rtn_code)
AzureIoTClient 11:31ebaeb51e1e 572 {
AzureIoTClient 11:31ebaeb51e1e 573 switch (rtn_code)
AzureIoTClient 11:31ebaeb51e1e 574 {
AzureIoTClient 11:31ebaeb51e1e 575 case CONNECTION_ACCEPTED:
AzureIoTClient 11:31ebaeb51e1e 576 return "Accepted";
AzureIoTClient 11:31ebaeb51e1e 577 case CONN_REFUSED_UNACCEPTABLE_VERSION:
AzureIoTClient 11:31ebaeb51e1e 578 return "Unacceptable Version";
AzureIoTClient 11:31ebaeb51e1e 579 case CONN_REFUSED_ID_REJECTED:
AzureIoTClient 11:31ebaeb51e1e 580 return "Id Rejected";
AzureIoTClient 11:31ebaeb51e1e 581 case CONN_REFUSED_SERVER_UNAVAIL:
AzureIoTClient 11:31ebaeb51e1e 582 return "Server Unavailable";
AzureIoTClient 11:31ebaeb51e1e 583 case CONN_REFUSED_BAD_USERNAME_PASSWORD:
AzureIoTClient 11:31ebaeb51e1e 584 return "Bad Username/Password";
AzureIoTClient 11:31ebaeb51e1e 585 case CONN_REFUSED_NOT_AUTHORIZED:
AzureIoTClient 11:31ebaeb51e1e 586 return "Not Authorized";
AzureIoTClient 11:31ebaeb51e1e 587 case CONN_REFUSED_UNKNOWN:
AzureIoTClient 11:31ebaeb51e1e 588 default:
AzureIoTClient 11:31ebaeb51e1e 589 return "Unknown";
AzureIoTClient 11:31ebaeb51e1e 590 }
AzureIoTClient 11:31ebaeb51e1e 591 }
AzureIoTClient 11:31ebaeb51e1e 592
AzureIoTClient 14:4dc2b011be33 593 static int retrieve_device_method_rid_info(const char* resp_topic, STRING_HANDLE method_name, STRING_HANDLE request_id)
AzureIoTClient 12:658ca6865de2 594 {
AzureIoTClient 12:658ca6865de2 595 int result;
AzureIoTClient 12:658ca6865de2 596 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 597 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 598 {
AzureIoTClient 12:658ca6865de2 599 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 600 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 601 }
AzureIoTClient 12:658ca6865de2 602 else
AzureIoTClient 12:658ca6865de2 603 {
AzureIoTClient 12:658ca6865de2 604 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 605 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 606 {
AzureIoTClient 12:658ca6865de2 607 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 608 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 609 }
AzureIoTClient 12:658ca6865de2 610 else
AzureIoTClient 12:658ca6865de2 611 {
AzureIoTClient 12:658ca6865de2 612 size_t token_index = 0;
AzureIoTClient 12:658ca6865de2 613 size_t request_id_length = strlen(REQUEST_ID_PROPERTY);
AzureIoTClient 18:ec8e5e97c6a4 614 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 615 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 616 {
AzureIoTClient 12:658ca6865de2 617 if (token_index == 3)
AzureIoTClient 12:658ca6865de2 618 {
AzureIoTClient 12:658ca6865de2 619 if (STRING_concat_with_STRING(method_name, token_value) != 0)
AzureIoTClient 12:658ca6865de2 620 {
AzureIoTClient 14:4dc2b011be33 621 LogError("Failed STRING_concat_with_STRING.");
AzureIoTClient 18:ec8e5e97c6a4 622 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 623 break;
AzureIoTClient 12:658ca6865de2 624 }
AzureIoTClient 12:658ca6865de2 625 }
AzureIoTClient 12:658ca6865de2 626 else if (token_index == 4)
AzureIoTClient 12:658ca6865de2 627 {
AzureIoTClient 12:658ca6865de2 628 if (STRING_length(token_value) >= request_id_length)
AzureIoTClient 12:658ca6865de2 629 {
AzureIoTClient 12:658ca6865de2 630 const char* request_id_value = STRING_c_str(token_value);
AzureIoTClient 12:658ca6865de2 631 if (memcmp(request_id_value, REQUEST_ID_PROPERTY, request_id_length) == 0)
AzureIoTClient 12:658ca6865de2 632 {
AzureIoTClient 14:4dc2b011be33 633 if (STRING_concat(request_id, request_id_value+request_id_length) != 0)
AzureIoTClient 14:4dc2b011be33 634 {
AzureIoTClient 14:4dc2b011be33 635 LogError("Failed STRING_concat failed.");
AzureIoTClient 18:ec8e5e97c6a4 636 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 637 }
AzureIoTClient 14:4dc2b011be33 638 else
AzureIoTClient 14:4dc2b011be33 639 {
AzureIoTClient 14:4dc2b011be33 640 result = 0;
AzureIoTClient 14:4dc2b011be33 641 }
AzureIoTClient 12:658ca6865de2 642 break;
AzureIoTClient 12:658ca6865de2 643 }
AzureIoTClient 12:658ca6865de2 644 }
AzureIoTClient 12:658ca6865de2 645 }
AzureIoTClient 12:658ca6865de2 646 token_index++;
AzureIoTClient 12:658ca6865de2 647 }
AzureIoTClient 12:658ca6865de2 648 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 649 }
AzureIoTClient 12:658ca6865de2 650 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 651 }
AzureIoTClient 12:658ca6865de2 652 return result;
AzureIoTClient 12:658ca6865de2 653 }
AzureIoTClient 12:658ca6865de2 654
AzureIoTClient 12:658ca6865de2 655 static int parse_device_twin_topic_info(const char* resp_topic, bool* patch_msg, size_t* request_id, int* status_code)
AzureIoTClient 12:658ca6865de2 656 {
AzureIoTClient 12:658ca6865de2 657 int result;
AzureIoTClient 12:658ca6865de2 658 STRING_TOKENIZER_HANDLE token_handle = STRING_TOKENIZER_create_from_char(resp_topic);
AzureIoTClient 12:658ca6865de2 659 if (token_handle == NULL)
AzureIoTClient 12:658ca6865de2 660 {
AzureIoTClient 12:658ca6865de2 661 LogError("Failed creating token from device twin topic.");
AzureIoTClient 18:ec8e5e97c6a4 662 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 663 *status_code = 0;
AzureIoTClient 12:658ca6865de2 664 *request_id = 0;
AzureIoTClient 12:658ca6865de2 665 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 666 }
AzureIoTClient 12:658ca6865de2 667 else
AzureIoTClient 12:658ca6865de2 668 {
AzureIoTClient 12:658ca6865de2 669 STRING_HANDLE token_value;
AzureIoTClient 12:658ca6865de2 670 if ((token_value = STRING_new()) == NULL)
AzureIoTClient 12:658ca6865de2 671 {
AzureIoTClient 12:658ca6865de2 672 LogError("Failed allocating new string .");
AzureIoTClient 18:ec8e5e97c6a4 673 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 674 *status_code = 0;
AzureIoTClient 12:658ca6865de2 675 *request_id = 0;
AzureIoTClient 12:658ca6865de2 676 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 677 }
AzureIoTClient 12:658ca6865de2 678 else
AzureIoTClient 12:658ca6865de2 679 {
AzureIoTClient 18:ec8e5e97c6a4 680 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 681 size_t token_count = 0;
AzureIoTClient 12:658ca6865de2 682 while (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/") == 0)
AzureIoTClient 12:658ca6865de2 683 {
AzureIoTClient 12:658ca6865de2 684 if (token_count == 2)
AzureIoTClient 12:658ca6865de2 685 {
AzureIoTClient 12:658ca6865de2 686 if (strcmp(STRING_c_str(token_value), "PATCH") == 0)
AzureIoTClient 12:658ca6865de2 687 {
AzureIoTClient 12:658ca6865de2 688 *patch_msg = true;
AzureIoTClient 12:658ca6865de2 689 *status_code = 0;
AzureIoTClient 12:658ca6865de2 690 *request_id = 0;
AzureIoTClient 12:658ca6865de2 691 result = 0;
AzureIoTClient 12:658ca6865de2 692 break;
AzureIoTClient 12:658ca6865de2 693 }
AzureIoTClient 12:658ca6865de2 694 else
AzureIoTClient 12:658ca6865de2 695 {
AzureIoTClient 12:658ca6865de2 696 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 697 }
AzureIoTClient 12:658ca6865de2 698 }
AzureIoTClient 12:658ca6865de2 699 else if (token_count == 3)
AzureIoTClient 12:658ca6865de2 700 {
AzureIoTClient 12:658ca6865de2 701 *status_code = atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 702 if (STRING_TOKENIZER_get_next_token(token_handle, token_value, "/?$rid=") == 0)
AzureIoTClient 12:658ca6865de2 703 {
AzureIoTClient 12:658ca6865de2 704 *request_id = (size_t)atol(STRING_c_str(token_value));
AzureIoTClient 12:658ca6865de2 705 }
AzureIoTClient 12:658ca6865de2 706 *patch_msg = false;
AzureIoTClient 12:658ca6865de2 707 result = 0;
AzureIoTClient 12:658ca6865de2 708 break;
AzureIoTClient 12:658ca6865de2 709 }
AzureIoTClient 12:658ca6865de2 710 token_count++;
AzureIoTClient 12:658ca6865de2 711 }
AzureIoTClient 12:658ca6865de2 712 STRING_delete(token_value);
AzureIoTClient 12:658ca6865de2 713 }
AzureIoTClient 12:658ca6865de2 714 STRING_TOKENIZER_destroy(token_handle);
AzureIoTClient 12:658ca6865de2 715 }
AzureIoTClient 12:658ca6865de2 716 return result;
AzureIoTClient 12:658ca6865de2 717 }
AzureIoTClient 12:658ca6865de2 718
AzureIoTClient 12:658ca6865de2 719 static IOTHUB_IDENTITY_TYPE retrieve_topic_type(const char* topic_resp)
AzureIoTClient 12:658ca6865de2 720 {
AzureIoTClient 12:658ca6865de2 721 IOTHUB_IDENTITY_TYPE type;
AzureIoTClient 12:658ca6865de2 722 size_t dev_twin_topic_len = sizeof(TOPIC_DEVICE_TWIN_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 723 size_t dev_method_topic_len = sizeof(TOPIC_DEVICE_METHOD_PREFIX)-1;
AzureIoTClient 12:658ca6865de2 724 size_t topic_len = strlen(topic_resp);
AzureIoTClient 12:658ca6865de2 725 size_t len_to_use = (dev_twin_topic_len > dev_method_topic_len) ? dev_twin_topic_len : dev_method_topic_len;
AzureIoTClient 12:658ca6865de2 726
AzureIoTClient 12:658ca6865de2 727 bool search_device_twin = true;
AzureIoTClient 12:658ca6865de2 728 bool search_device_method = true;
AzureIoTClient 12:658ca6865de2 729 if (topic_len < len_to_use)
AzureIoTClient 12:658ca6865de2 730 {
AzureIoTClient 12:658ca6865de2 731 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 732 search_device_method = false;
AzureIoTClient 12:658ca6865de2 733 }
AzureIoTClient 12:658ca6865de2 734 else
AzureIoTClient 12:658ca6865de2 735 {
AzureIoTClient 16:14640ee83e99 736 size_t index = 0;
AzureIoTClient 16:14640ee83e99 737 for (index = 0; index < len_to_use && (search_device_twin || search_device_method); index++)
AzureIoTClient 12:658ca6865de2 738 {
AzureIoTClient 12:658ca6865de2 739 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 740 {
AzureIoTClient 12:658ca6865de2 741 if (index > dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 742 {
AzureIoTClient 12:658ca6865de2 743 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 744 }
AzureIoTClient 12:658ca6865de2 745 else
AzureIoTClient 12:658ca6865de2 746 {
AzureIoTClient 12:658ca6865de2 747 if (index == dev_twin_topic_len)
AzureIoTClient 12:658ca6865de2 748 {
AzureIoTClient 12:658ca6865de2 749 break;
AzureIoTClient 12:658ca6865de2 750 }
AzureIoTClient 14:4dc2b011be33 751 else if (TOUPPER(TOPIC_DEVICE_TWIN_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 752 {
AzureIoTClient 12:658ca6865de2 753 search_device_twin = false;
AzureIoTClient 12:658ca6865de2 754 }
AzureIoTClient 12:658ca6865de2 755 }
AzureIoTClient 12:658ca6865de2 756 }
AzureIoTClient 12:658ca6865de2 757 if (search_device_method)
AzureIoTClient 12:658ca6865de2 758 {
AzureIoTClient 12:658ca6865de2 759 if (index > dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 760 {
AzureIoTClient 12:658ca6865de2 761 search_device_method = false;
AzureIoTClient 12:658ca6865de2 762 }
AzureIoTClient 12:658ca6865de2 763 else
AzureIoTClient 12:658ca6865de2 764 {
AzureIoTClient 12:658ca6865de2 765 if (index == dev_method_topic_len)
AzureIoTClient 12:658ca6865de2 766 {
AzureIoTClient 12:658ca6865de2 767 break;
AzureIoTClient 12:658ca6865de2 768 }
AzureIoTClient 14:4dc2b011be33 769 else if (TOUPPER(TOPIC_DEVICE_METHOD_PREFIX[index]) != TOUPPER(topic_resp[index]))
AzureIoTClient 12:658ca6865de2 770 {
AzureIoTClient 12:658ca6865de2 771 search_device_method = false;
AzureIoTClient 12:658ca6865de2 772 }
AzureIoTClient 12:658ca6865de2 773 }
AzureIoTClient 12:658ca6865de2 774 }
AzureIoTClient 12:658ca6865de2 775 }
AzureIoTClient 12:658ca6865de2 776 }
AzureIoTClient 12:658ca6865de2 777 if (search_device_twin)
AzureIoTClient 12:658ca6865de2 778 {
AzureIoTClient 12:658ca6865de2 779 type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 780 }
AzureIoTClient 12:658ca6865de2 781 else if (search_device_method)
AzureIoTClient 12:658ca6865de2 782 {
AzureIoTClient 12:658ca6865de2 783 type = IOTHUB_TYPE_DEVICE_METHODS;
AzureIoTClient 12:658ca6865de2 784 }
AzureIoTClient 12:658ca6865de2 785 else
AzureIoTClient 12:658ca6865de2 786 {
AzureIoTClient 12:658ca6865de2 787 type = IOTHUB_TYPE_TELEMETRY;
AzureIoTClient 12:658ca6865de2 788 }
AzureIoTClient 12:658ca6865de2 789 return type;
AzureIoTClient 12:658ca6865de2 790 }
AzureIoTClient 12:658ca6865de2 791
AzureIoTClient 11:31ebaeb51e1e 792 static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transport_data, IOTHUB_CLIENT_CONFIRMATION_RESULT confirmResult)
AzureIoTClient 11:31ebaeb51e1e 793 {
AzureIoTClient 11:31ebaeb51e1e 794 DLIST_ENTRY messageCompleted;
AzureIoTClient 11:31ebaeb51e1e 795 DList_InitializeListHead(&messageCompleted);
AzureIoTClient 11:31ebaeb51e1e 796 DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
AzureIoTClient 11:31ebaeb51e1e 797 IoTHubClient_LL_SendComplete(transport_data->llClientHandle, &messageCompleted, confirmResult);
AzureIoTClient 11:31ebaeb51e1e 798 }
AzureIoTClient 11:31ebaeb51e1e 799
AzureIoTClient 11:31ebaeb51e1e 800 static STRING_HANDLE addPropertiesTouMqttMessage(IOTHUB_MESSAGE_HANDLE iothub_message_handle, const char* eventTopic)
AzureIoTClient 11:31ebaeb51e1e 801 {
AzureIoTClient 11:31ebaeb51e1e 802 STRING_HANDLE result = STRING_construct(eventTopic);
AzureIoTClient 11:31ebaeb51e1e 803 const char* const* propertyKeys;
AzureIoTClient 11:31ebaeb51e1e 804 const char* const* propertyValues;
AzureIoTClient 11:31ebaeb51e1e 805 size_t propertyCount;
AzureIoTClient 11:31ebaeb51e1e 806
AzureIoTClient 11:31ebaeb51e1e 807 // Construct Properties
AzureIoTClient 11:31ebaeb51e1e 808 MAP_HANDLE properties_map = IoTHubMessage_Properties(iothub_message_handle);
AzureIoTClient 11:31ebaeb51e1e 809 if (properties_map != NULL)
AzureIoTClient 11:31ebaeb51e1e 810 {
AzureIoTClient 11:31ebaeb51e1e 811 if (Map_GetInternals(properties_map, &propertyKeys, &propertyValues, &propertyCount) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 812 {
AzureIoTClient 11:31ebaeb51e1e 813 LogError("Failed to get the internals of the property map.");
AzureIoTClient 11:31ebaeb51e1e 814 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 815 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 816 }
AzureIoTClient 11:31ebaeb51e1e 817 else
AzureIoTClient 11:31ebaeb51e1e 818 {
AzureIoTClient 11:31ebaeb51e1e 819 if (propertyCount != 0)
AzureIoTClient 11:31ebaeb51e1e 820 {
AzureIoTClient 16:14640ee83e99 821 size_t index = 0;
AzureIoTClient 16:14640ee83e99 822 for (index = 0; index < propertyCount && result != NULL; index++)
AzureIoTClient 11:31ebaeb51e1e 823 {
AzureIoTClient 11:31ebaeb51e1e 824 if (STRING_sprintf(result, "%s=%s%s", propertyKeys[index], propertyValues[index], propertyCount - 1 == index ? "" : PROPERTY_SEPARATOR) != 0)
AzureIoTClient 11:31ebaeb51e1e 825 {
AzureIoTClient 11:31ebaeb51e1e 826 STRING_delete(result);
AzureIoTClient 11:31ebaeb51e1e 827 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 828 }
AzureIoTClient 11:31ebaeb51e1e 829 }
AzureIoTClient 11:31ebaeb51e1e 830 }
AzureIoTClient 11:31ebaeb51e1e 831 }
AzureIoTClient 11:31ebaeb51e1e 832 }
AzureIoTClient 11:31ebaeb51e1e 833 return result;
AzureIoTClient 11:31ebaeb51e1e 834 }
AzureIoTClient 11:31ebaeb51e1e 835
AzureIoTClient 11:31ebaeb51e1e 836 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 837 {
AzureIoTClient 11:31ebaeb51e1e 838 int result;
AzureIoTClient 11:31ebaeb51e1e 839 STRING_HANDLE msgTopic = addPropertiesTouMqttMessage(mqttMsgEntry->iotHubMessageEntry->messageHandle, STRING_c_str(transport_data->topic_MqttEvent));
AzureIoTClient 11:31ebaeb51e1e 840 if (msgTopic == NULL)
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 MQTT_MESSAGE_HANDLE mqttMsg = mqttmessage_create(mqttMsgEntry->packet_id, STRING_c_str(msgTopic), DELIVER_AT_LEAST_ONCE, payload, len);
AzureIoTClient 11:31ebaeb51e1e 847 if (mqttMsg == NULL)
AzureIoTClient 11:31ebaeb51e1e 848 {
AzureIoTClient 18:ec8e5e97c6a4 849 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 850 }
AzureIoTClient 11:31ebaeb51e1e 851 else
AzureIoTClient 11:31ebaeb51e1e 852 {
Azure.IoT.Build 13:606465879c57 853 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqttMsgEntry->msgPublishTime) != 0)
AzureIoTClient 11:31ebaeb51e1e 854 {
AzureIoTClient 11:31ebaeb51e1e 855 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 856 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 857 }
AzureIoTClient 11:31ebaeb51e1e 858 else
AzureIoTClient 11:31ebaeb51e1e 859 {
AzureIoTClient 11:31ebaeb51e1e 860 if (mqtt_client_publish(transport_data->mqttClient, mqttMsg) != 0)
AzureIoTClient 11:31ebaeb51e1e 861 {
AzureIoTClient 18:ec8e5e97c6a4 862 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 863 }
AzureIoTClient 11:31ebaeb51e1e 864 else
AzureIoTClient 11:31ebaeb51e1e 865 {
AzureIoTClient 11:31ebaeb51e1e 866 mqttMsgEntry->retryCount++;
AzureIoTClient 11:31ebaeb51e1e 867 result = 0;
AzureIoTClient 11:31ebaeb51e1e 868 }
AzureIoTClient 11:31ebaeb51e1e 869 }
AzureIoTClient 11:31ebaeb51e1e 870 mqttmessage_destroy(mqttMsg);
AzureIoTClient 11:31ebaeb51e1e 871 }
AzureIoTClient 11:31ebaeb51e1e 872 STRING_delete(msgTopic);
AzureIoTClient 11:31ebaeb51e1e 873 }
AzureIoTClient 11:31ebaeb51e1e 874 return result;
AzureIoTClient 11:31ebaeb51e1e 875 }
AzureIoTClient 11:31ebaeb51e1e 876
AzureIoTClient 14:4dc2b011be33 877 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 878 {
AzureIoTClient 12:658ca6865de2 879 int result;
AzureIoTClient 12:658ca6865de2 880 uint16_t packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 881
AzureIoTClient 14:4dc2b011be33 882 STRING_HANDLE msg_topic = STRING_construct_sprintf(DEVICE_METHOD_RESPONSE_TOPIC, status_code, STRING_c_str(request_id) );
AzureIoTClient 12:658ca6865de2 883 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 884 {
AzureIoTClient 12:658ca6865de2 885 LogError("Failed constructing message topic.");
AzureIoTClient 18:ec8e5e97c6a4 886 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 887 }
AzureIoTClient 12:658ca6865de2 888 else
AzureIoTClient 12:658ca6865de2 889 {
AzureIoTClient 14:4dc2b011be33 890 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 891 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 892 {
AzureIoTClient 12:658ca6865de2 893 LogError("Failed constructing mqtt message.");
AzureIoTClient 18:ec8e5e97c6a4 894 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 895 }
AzureIoTClient 12:658ca6865de2 896 else
AzureIoTClient 12:658ca6865de2 897 {
AzureIoTClient 12:658ca6865de2 898 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 899 {
AzureIoTClient 12:658ca6865de2 900 LogError("Failed publishing to mqtt client.");
AzureIoTClient 18:ec8e5e97c6a4 901 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 902 }
AzureIoTClient 12:658ca6865de2 903 else
AzureIoTClient 12:658ca6865de2 904 {
AzureIoTClient 12:658ca6865de2 905 result = 0;
AzureIoTClient 12:658ca6865de2 906 }
AzureIoTClient 12:658ca6865de2 907 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 908 }
AzureIoTClient 12:658ca6865de2 909 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 910 }
AzureIoTClient 12:658ca6865de2 911 return result;
AzureIoTClient 12:658ca6865de2 912 }
AzureIoTClient 12:658ca6865de2 913
AzureIoTClient 12:658ca6865de2 914 static int publish_device_twin_get_message(MQTTTRANSPORT_HANDLE_DATA* transport_data)
AzureIoTClient 12:658ca6865de2 915 {
AzureIoTClient 12:658ca6865de2 916 int result;
AzureIoTClient 12:658ca6865de2 917 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 918 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 919 {
AzureIoTClient 12:658ca6865de2 920 LogError("Failed allocating device twin data.");
AzureIoTClient 18:ec8e5e97c6a4 921 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 922 }
AzureIoTClient 12:658ca6865de2 923 else
AzureIoTClient 12:658ca6865de2 924 {
AzureIoTClient 12:658ca6865de2 925 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 926 mqtt_info->iothub_msg_id = 0;
AzureIoTClient 12:658ca6865de2 927 mqtt_info->device_twin_msg_type = RETRIEVE_PROPERTIES;
AzureIoTClient 12:658ca6865de2 928 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 929 mqtt_info->msgPublishTime = 0;
AzureIoTClient 12:658ca6865de2 930 mqtt_info->iothub_type = IOTHUB_TYPE_DEVICE_TWIN;
AzureIoTClient 12:658ca6865de2 931 mqtt_info->device_twin_data = NULL;
AzureIoTClient 12:658ca6865de2 932 STRING_HANDLE msg_topic = STRING_construct_sprintf(GET_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 933 if (msg_topic == NULL)
AzureIoTClient 12:658ca6865de2 934 {
AzureIoTClient 12:658ca6865de2 935 LogError("Failed constructing get Prop topic.");
AzureIoTClient 12:658ca6865de2 936 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 937 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 938 }
AzureIoTClient 12:658ca6865de2 939 else
AzureIoTClient 12:658ca6865de2 940 {
AzureIoTClient 12:658ca6865de2 941 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 942 if (mqtt_get_msg == NULL)
AzureIoTClient 12:658ca6865de2 943 {
AzureIoTClient 12:658ca6865de2 944 LogError("Failed constructing mqtt message.");
AzureIoTClient 12:658ca6865de2 945 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 946 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 947 }
AzureIoTClient 12:658ca6865de2 948 else
AzureIoTClient 12:658ca6865de2 949 {
AzureIoTClient 12:658ca6865de2 950 if (mqtt_client_publish(transport_data->mqttClient, mqtt_get_msg) != 0)
AzureIoTClient 12:658ca6865de2 951 {
AzureIoTClient 12:658ca6865de2 952 LogError("Failed publishing to mqtt client.");
AzureIoTClient 12:658ca6865de2 953 free(mqtt_info);
AzureIoTClient 18:ec8e5e97c6a4 954 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 955 }
AzureIoTClient 12:658ca6865de2 956 else
AzureIoTClient 12:658ca6865de2 957 {
AzureIoTClient 12:658ca6865de2 958 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 959 result = 0;
AzureIoTClient 12:658ca6865de2 960 }
AzureIoTClient 12:658ca6865de2 961 mqttmessage_destroy(mqtt_get_msg);
AzureIoTClient 12:658ca6865de2 962 }
AzureIoTClient 12:658ca6865de2 963 STRING_delete(msg_topic);
AzureIoTClient 12:658ca6865de2 964 }
AzureIoTClient 12:658ca6865de2 965 }
AzureIoTClient 12:658ca6865de2 966 return result;
AzureIoTClient 12:658ca6865de2 967 }
AzureIoTClient 12:658ca6865de2 968
AzureIoTClient 12:658ca6865de2 969 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 970 {
AzureIoTClient 12:658ca6865de2 971 int result;
AzureIoTClient 12:658ca6865de2 972 mqtt_info->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 12:658ca6865de2 973 mqtt_info->device_twin_msg_type = REPORTED_STATE;
AzureIoTClient 12:658ca6865de2 974 STRING_HANDLE msgTopic = STRING_construct_sprintf(REPORTED_PROPERTIES_TOPIC, mqtt_info->packet_id);
AzureIoTClient 12:658ca6865de2 975 if (msgTopic == NULL)
AzureIoTClient 12:658ca6865de2 976 {
AzureIoTClient 12:658ca6865de2 977 LogError("Failed constructing reported prop topic.");
AzureIoTClient 18:ec8e5e97c6a4 978 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 979 }
AzureIoTClient 12:658ca6865de2 980 else
AzureIoTClient 12:658ca6865de2 981 {
AzureIoTClient 12:658ca6865de2 982 const CONSTBUFFER* data_buff = CONSTBUFFER_GetContent(device_twin_info->report_data_handle);
AzureIoTClient 12:658ca6865de2 983 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 984 if (mqtt_rpt_msg == NULL)
AzureIoTClient 12:658ca6865de2 985 {
AzureIoTClient 12:658ca6865de2 986 LogError("Failed creating mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 987 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 988 }
AzureIoTClient 12:658ca6865de2 989 else
AzureIoTClient 12:658ca6865de2 990 {
Azure.IoT.Build 13:606465879c57 991 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &mqtt_info->msgPublishTime) != 0)
AzureIoTClient 12:658ca6865de2 992 {
AzureIoTClient 12:658ca6865de2 993 LogError("Failed retrieving tickcounter info");
AzureIoTClient 18:ec8e5e97c6a4 994 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 995 }
AzureIoTClient 12:658ca6865de2 996 else
AzureIoTClient 12:658ca6865de2 997 {
AzureIoTClient 12:658ca6865de2 998 if (mqtt_client_publish(transport_data->mqttClient, mqtt_rpt_msg) != 0)
AzureIoTClient 12:658ca6865de2 999 {
AzureIoTClient 12:658ca6865de2 1000 LogError("Failed publishing mqtt message");
AzureIoTClient 18:ec8e5e97c6a4 1001 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1002 }
AzureIoTClient 12:658ca6865de2 1003 else
AzureIoTClient 12:658ca6865de2 1004 {
AzureIoTClient 12:658ca6865de2 1005 mqtt_info->retryCount++;
AzureIoTClient 12:658ca6865de2 1006 result = 0;
AzureIoTClient 12:658ca6865de2 1007 }
AzureIoTClient 12:658ca6865de2 1008 }
AzureIoTClient 12:658ca6865de2 1009 mqttmessage_destroy(mqtt_rpt_msg);
AzureIoTClient 12:658ca6865de2 1010 }
AzureIoTClient 12:658ca6865de2 1011 STRING_delete(msgTopic);
AzureIoTClient 12:658ca6865de2 1012 }
AzureIoTClient 12:658ca6865de2 1013 return result;
AzureIoTClient 12:658ca6865de2 1014 }
AzureIoTClient 12:658ca6865de2 1015
AzureIoTClient 11:31ebaeb51e1e 1016 static bool isSystemProperty(const char* tokenData)
AzureIoTClient 11:31ebaeb51e1e 1017 {
AzureIoTClient 11:31ebaeb51e1e 1018 bool result = false;
AzureIoTClient 11:31ebaeb51e1e 1019 size_t propCount = sizeof(sysPropList)/sizeof(sysPropList[0]);
AzureIoTClient 16:14640ee83e99 1020 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1021 for (index = 0; index < propCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1022 {
AzureIoTClient 11:31ebaeb51e1e 1023 if (memcmp(tokenData, sysPropList[index].propName, sysPropList[index].propLength) == 0)
AzureIoTClient 11:31ebaeb51e1e 1024 {
AzureIoTClient 11:31ebaeb51e1e 1025 result = true;
AzureIoTClient 11:31ebaeb51e1e 1026 break;
AzureIoTClient 11:31ebaeb51e1e 1027 }
AzureIoTClient 11:31ebaeb51e1e 1028 }
AzureIoTClient 11:31ebaeb51e1e 1029 return result;
AzureIoTClient 11:31ebaeb51e1e 1030 }
AzureIoTClient 11:31ebaeb51e1e 1031
AzureIoTClient 11:31ebaeb51e1e 1032 static int extractMqttProperties(IOTHUB_MESSAGE_HANDLE IoTHubMessage, const char* topic_name)
AzureIoTClient 11:31ebaeb51e1e 1033 {
AzureIoTClient 11:31ebaeb51e1e 1034 int result;
AzureIoTClient 11:31ebaeb51e1e 1035 STRING_HANDLE mqttTopic = STRING_construct(topic_name);
AzureIoTClient 11:31ebaeb51e1e 1036 if (mqttTopic == NULL)
AzureIoTClient 11:31ebaeb51e1e 1037 {
AzureIoTClient 11:31ebaeb51e1e 1038 LogError("Failure constructing string topic name.");
AzureIoTClient 18:ec8e5e97c6a4 1039 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1040 }
AzureIoTClient 11:31ebaeb51e1e 1041 else
AzureIoTClient 11:31ebaeb51e1e 1042 {
AzureIoTClient 11:31ebaeb51e1e 1043 STRING_TOKENIZER_HANDLE token = STRING_TOKENIZER_create(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1044 if (token != NULL)
AzureIoTClient 11:31ebaeb51e1e 1045 {
AzureIoTClient 11:31ebaeb51e1e 1046 MAP_HANDLE propertyMap = IoTHubMessage_Properties(IoTHubMessage);
AzureIoTClient 11:31ebaeb51e1e 1047 if (propertyMap == NULL)
AzureIoTClient 11:31ebaeb51e1e 1048 {
AzureIoTClient 11:31ebaeb51e1e 1049 LogError("Failure to retrieve IoTHubMessage_properties.");
AzureIoTClient 18:ec8e5e97c6a4 1050 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1051 }
AzureIoTClient 11:31ebaeb51e1e 1052 else
AzureIoTClient 11:31ebaeb51e1e 1053 {
AzureIoTClient 11:31ebaeb51e1e 1054 STRING_HANDLE output = STRING_new();
AzureIoTClient 11:31ebaeb51e1e 1055 if (output == NULL)
AzureIoTClient 11:31ebaeb51e1e 1056 {
AzureIoTClient 11:31ebaeb51e1e 1057 LogError("Failure to allocate STRING_new.");
AzureIoTClient 18:ec8e5e97c6a4 1058 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1059 }
AzureIoTClient 11:31ebaeb51e1e 1060 else
AzureIoTClient 11:31ebaeb51e1e 1061 {
AzureIoTClient 11:31ebaeb51e1e 1062 result = 0;
AzureIoTClient 18:ec8e5e97c6a4 1063
AzureIoTClient 11:31ebaeb51e1e 1064 while (STRING_TOKENIZER_get_next_token(token, output, PROPERTY_SEPARATOR) == 0 && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1065 {
AzureIoTClient 11:31ebaeb51e1e 1066 const char* tokenData = STRING_c_str(output);
AzureIoTClient 11:31ebaeb51e1e 1067 size_t tokenLen = strlen(tokenData);
AzureIoTClient 11:31ebaeb51e1e 1068 if (tokenData == NULL || tokenLen == 0)
AzureIoTClient 11:31ebaeb51e1e 1069 {
AzureIoTClient 11:31ebaeb51e1e 1070 break;
AzureIoTClient 11:31ebaeb51e1e 1071 }
AzureIoTClient 11:31ebaeb51e1e 1072 else
AzureIoTClient 11:31ebaeb51e1e 1073 {
AzureIoTClient 18:ec8e5e97c6a4 1074 if (isSystemProperty(tokenData))
AzureIoTClient 11:31ebaeb51e1e 1075 {
AzureIoTClient 11:31ebaeb51e1e 1076 const char* iterator = tokenData;
AzureIoTClient 11:31ebaeb51e1e 1077 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 11:31ebaeb51e1e 1078 {
AzureIoTClient 11:31ebaeb51e1e 1079 if (*iterator == '=')
AzureIoTClient 11:31ebaeb51e1e 1080 {
AzureIoTClient 11:31ebaeb51e1e 1081 size_t nameLen = iterator - tokenData;
AzureIoTClient 11:31ebaeb51e1e 1082 char* propName = malloc(nameLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1083
AzureIoTClient 11:31ebaeb51e1e 1084 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 11:31ebaeb51e1e 1085 char* propValue = malloc(valLen + 1);
AzureIoTClient 11:31ebaeb51e1e 1086
AzureIoTClient 11:31ebaeb51e1e 1087 if (propName == NULL || propValue == NULL)
AzureIoTClient 11:31ebaeb51e1e 1088 {
AzureIoTClient 18:ec8e5e97c6a4 1089 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1090 }
AzureIoTClient 18:ec8e5e97c6a4 1091 else
AzureIoTClient 18:ec8e5e97c6a4 1092 {
AzureIoTClient 18:ec8e5e97c6a4 1093 strncpy(propName, tokenData, nameLen);
AzureIoTClient 18:ec8e5e97c6a4 1094 propName[nameLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1095
AzureIoTClient 18:ec8e5e97c6a4 1096 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 18:ec8e5e97c6a4 1097 propValue[valLen] = '\0';
AzureIoTClient 18:ec8e5e97c6a4 1098
AzureIoTClient 18:ec8e5e97c6a4 1099 if (nameLen > 3)
AzureIoTClient 18:ec8e5e97c6a4 1100 {
AzureIoTClient 18:ec8e5e97c6a4 1101 if (strcmp((const char*)&propName[nameLen - 3], MESSAGE_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1102 {
AzureIoTClient 18:ec8e5e97c6a4 1103 if (IoTHubMessage_SetMessageId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1104 {
AzureIoTClient 18:ec8e5e97c6a4 1105 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'messageId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1106 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1107 }
AzureIoTClient 18:ec8e5e97c6a4 1108 }
AzureIoTClient 18:ec8e5e97c6a4 1109
AzureIoTClient 18:ec8e5e97c6a4 1110 if (strcmp((const char*)&propName[nameLen - 3], CORRELATION_ID_PROPERTY) == 0)
AzureIoTClient 18:ec8e5e97c6a4 1111 {
AzureIoTClient 18:ec8e5e97c6a4 1112 if (IoTHubMessage_SetCorrelationId(IoTHubMessage, propValue) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:ec8e5e97c6a4 1113 {
AzureIoTClient 18:ec8e5e97c6a4 1114 LogError("Failed to set IOTHUB_MESSAGE_HANDLE 'correlationId' property.");
AzureIoTClient 18:ec8e5e97c6a4 1115 result = __FAILURE__;
AzureIoTClient 18:ec8e5e97c6a4 1116 }
AzureIoTClient 18:ec8e5e97c6a4 1117 }
AzureIoTClient 18:ec8e5e97c6a4 1118 }
AzureIoTClient 18:ec8e5e97c6a4 1119 }
AzureIoTClient 18:ec8e5e97c6a4 1120 free(propName);
AzureIoTClient 18:ec8e5e97c6a4 1121 free(propValue);
AzureIoTClient 18:ec8e5e97c6a4 1122
AzureIoTClient 18:ec8e5e97c6a4 1123 break;
AzureIoTClient 18:ec8e5e97c6a4 1124 }
AzureIoTClient 18:ec8e5e97c6a4 1125 iterator++;
AzureIoTClient 18:ec8e5e97c6a4 1126 }
AzureIoTClient 18:ec8e5e97c6a4 1127 }
AzureIoTClient 18:ec8e5e97c6a4 1128 else
AzureIoTClient 18:ec8e5e97c6a4 1129 {
AzureIoTClient 18:ec8e5e97c6a4 1130 const char* iterator = tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1131 while (iterator != NULL && *iterator != '\0' && result == 0)
AzureIoTClient 18:ec8e5e97c6a4 1132 {
AzureIoTClient 18:ec8e5e97c6a4 1133 if (*iterator == '=')
AzureIoTClient 18:ec8e5e97c6a4 1134 {
AzureIoTClient 18:ec8e5e97c6a4 1135 size_t nameLen = iterator - tokenData;
AzureIoTClient 18:ec8e5e97c6a4 1136 char* propName = malloc(nameLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1137
AzureIoTClient 18:ec8e5e97c6a4 1138 size_t valLen = tokenLen - (nameLen + 1) + 1;
AzureIoTClient 18:ec8e5e97c6a4 1139 char* propValue = malloc(valLen + 1);
AzureIoTClient 18:ec8e5e97c6a4 1140
AzureIoTClient 18:ec8e5e97c6a4 1141 if (propName == NULL || propValue == NULL)
AzureIoTClient 18:ec8e5e97c6a4 1142 {
AzureIoTClient 18:ec8e5e97c6a4 1143 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1144 }
AzureIoTClient 11:31ebaeb51e1e 1145 else
AzureIoTClient 11:31ebaeb51e1e 1146 {
AzureIoTClient 11:31ebaeb51e1e 1147 strncpy(propName, tokenData, nameLen);
AzureIoTClient 11:31ebaeb51e1e 1148 propName[nameLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1149
AzureIoTClient 11:31ebaeb51e1e 1150 strncpy(propValue, iterator + 1, valLen);
AzureIoTClient 11:31ebaeb51e1e 1151 propValue[valLen] = '\0';
AzureIoTClient 11:31ebaeb51e1e 1152
AzureIoTClient 11:31ebaeb51e1e 1153 if (Map_AddOrUpdate(propertyMap, propName, propValue) != MAP_OK)
AzureIoTClient 11:31ebaeb51e1e 1154 {
AzureIoTClient 11:31ebaeb51e1e 1155 LogError("Map_AddOrUpdate failed.");
AzureIoTClient 18:ec8e5e97c6a4 1156 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1157 }
AzureIoTClient 11:31ebaeb51e1e 1158 }
AzureIoTClient 11:31ebaeb51e1e 1159 free(propName);
AzureIoTClient 11:31ebaeb51e1e 1160 free(propValue);
AzureIoTClient 11:31ebaeb51e1e 1161
AzureIoTClient 11:31ebaeb51e1e 1162 break;
AzureIoTClient 11:31ebaeb51e1e 1163 }
AzureIoTClient 11:31ebaeb51e1e 1164 iterator++;
AzureIoTClient 11:31ebaeb51e1e 1165 }
AzureIoTClient 11:31ebaeb51e1e 1166 }
AzureIoTClient 11:31ebaeb51e1e 1167 }
AzureIoTClient 11:31ebaeb51e1e 1168 }
AzureIoTClient 11:31ebaeb51e1e 1169 STRING_delete(output);
AzureIoTClient 11:31ebaeb51e1e 1170 }
AzureIoTClient 11:31ebaeb51e1e 1171 }
AzureIoTClient 11:31ebaeb51e1e 1172 STRING_TOKENIZER_destroy(token);
AzureIoTClient 11:31ebaeb51e1e 1173 }
AzureIoTClient 11:31ebaeb51e1e 1174 else
AzureIoTClient 11:31ebaeb51e1e 1175 {
AzureIoTClient 11:31ebaeb51e1e 1176 LogError("Unable to create Tokenizer object.");
AzureIoTClient 18:ec8e5e97c6a4 1177 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1178 }
AzureIoTClient 11:31ebaeb51e1e 1179 STRING_delete(mqttTopic);
AzureIoTClient 11:31ebaeb51e1e 1180 }
AzureIoTClient 11:31ebaeb51e1e 1181 return result;
AzureIoTClient 11:31ebaeb51e1e 1182 }
AzureIoTClient 11:31ebaeb51e1e 1183
AzureIoTClient 11:31ebaeb51e1e 1184 static void mqtt_notification_callback(MQTT_MESSAGE_HANDLE msgHandle, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1185 {
AzureIoTClient 14:4dc2b011be33 1186 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_051: [ If msgHandle or callbackCtx is NULL, mqtt_notification_callback shall do nothing. ] */
AzureIoTClient 11:31ebaeb51e1e 1187 if (msgHandle != NULL && callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1188 {
AzureIoTClient 14:4dc2b011be33 1189 /* Tests_SRS_IOTHUB_MQTT_TRANSPORT_07_052: [ mqtt_notification_callback shall extract the topic Name from the MQTT_MESSAGE_HANDLE. ] */
AzureIoTClient 11:31ebaeb51e1e 1190 const char* topic_resp = mqttmessage_getTopicName(msgHandle);
AzureIoTClient 11:31ebaeb51e1e 1191 if (topic_resp == NULL)
AzureIoTClient 11:31ebaeb51e1e 1192 {
AzureIoTClient 11:31ebaeb51e1e 1193 LogError("Failure: NULL topic name encountered");
AzureIoTClient 11:31ebaeb51e1e 1194 }
AzureIoTClient 11:31ebaeb51e1e 1195 else
AzureIoTClient 11:31ebaeb51e1e 1196 {
AzureIoTClient 11:31ebaeb51e1e 1197 PMQTTTRANSPORT_HANDLE_DATA transportData = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1198
AzureIoTClient 12:658ca6865de2 1199 IOTHUB_IDENTITY_TYPE type = retrieve_topic_type(topic_resp);
AzureIoTClient 12:658ca6865de2 1200 if (type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 11:31ebaeb51e1e 1201 {
AzureIoTClient 12:658ca6865de2 1202 size_t request_id;
AzureIoTClient 12:658ca6865de2 1203 int status_code;
AzureIoTClient 12:658ca6865de2 1204 bool notification_msg;
AzureIoTClient 12:658ca6865de2 1205 if (parse_device_twin_topic_info(topic_resp, &notification_msg, &request_id, &status_code) != 0)
AzureIoTClient 12:658ca6865de2 1206 {
AzureIoTClient 12:658ca6865de2 1207 LogError("Failure: parsing device topic info");
AzureIoTClient 12:658ca6865de2 1208 }
AzureIoTClient 12:658ca6865de2 1209 else
AzureIoTClient 12:658ca6865de2 1210 {
AzureIoTClient 12:658ca6865de2 1211 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1212 if (notification_msg)
AzureIoTClient 12:658ca6865de2 1213 {
AzureIoTClient 12:658ca6865de2 1214 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_PARTIAL, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1215 }
AzureIoTClient 12:658ca6865de2 1216 else
AzureIoTClient 12:658ca6865de2 1217 {
AzureIoTClient 12:658ca6865de2 1218 PDLIST_ENTRY dev_twin_item = transportData->ack_waiting_queue.Flink;
AzureIoTClient 12:658ca6865de2 1219 while (dev_twin_item != &transportData->ack_waiting_queue)
AzureIoTClient 12:658ca6865de2 1220 {
AzureIoTClient 12:658ca6865de2 1221 DLIST_ENTRY saveListEntry;
AzureIoTClient 12:658ca6865de2 1222 saveListEntry.Flink = dev_twin_item->Flink;
AzureIoTClient 12:658ca6865de2 1223 MQTT_DEVICE_TWIN_ITEM* msg_entry = containingRecord(dev_twin_item, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 1224 if (request_id == msg_entry->packet_id)
AzureIoTClient 12:658ca6865de2 1225 {
AzureIoTClient 12:658ca6865de2 1226 (void)DList_RemoveEntryList(dev_twin_item);
AzureIoTClient 12:658ca6865de2 1227 if (msg_entry->device_twin_msg_type == RETRIEVE_PROPERTIES)
AzureIoTClient 12:658ca6865de2 1228 {
AzureIoTClient 14:4dc2b011be33 1229 /* 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 1230 IoTHubClient_LL_RetrievePropertyComplete(transportData->llClientHandle, DEVICE_TWIN_UPDATE_COMPLETE, payload->message, payload->length);
AzureIoTClient 12:658ca6865de2 1231 }
AzureIoTClient 12:658ca6865de2 1232 else
AzureIoTClient 12:658ca6865de2 1233 {
AzureIoTClient 14:4dc2b011be33 1234 /* 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 1235 IoTHubClient_LL_ReportedStateComplete(transportData->llClientHandle, msg_entry->iothub_msg_id, status_code);
AzureIoTClient 12:658ca6865de2 1236 }
AzureIoTClient 12:658ca6865de2 1237 free(msg_entry);
AzureIoTClient 12:658ca6865de2 1238 break;
AzureIoTClient 12:658ca6865de2 1239 }
AzureIoTClient 12:658ca6865de2 1240 dev_twin_item = saveListEntry.Flink;
AzureIoTClient 12:658ca6865de2 1241 }
AzureIoTClient 12:658ca6865de2 1242 }
AzureIoTClient 12:658ca6865de2 1243 }
AzureIoTClient 12:658ca6865de2 1244 }
AzureIoTClient 12:658ca6865de2 1245 else if (type == IOTHUB_TYPE_DEVICE_METHODS)
AzureIoTClient 12:658ca6865de2 1246 {
AzureIoTClient 12:658ca6865de2 1247 STRING_HANDLE method_name = STRING_new();
AzureIoTClient 12:658ca6865de2 1248 if (method_name == NULL)
AzureIoTClient 12:658ca6865de2 1249 {
AzureIoTClient 12:658ca6865de2 1250 LogError("Failure: allocating method_name string value");
AzureIoTClient 12:658ca6865de2 1251 }
AzureIoTClient 12:658ca6865de2 1252 else
AzureIoTClient 12:658ca6865de2 1253 {
AzureIoTClient 14:4dc2b011be33 1254 DEVICE_METHOD_INFO* dev_method_info = malloc(sizeof(DEVICE_METHOD_INFO) );
AzureIoTClient 14:4dc2b011be33 1255 if (dev_method_info == NULL)
AzureIoTClient 12:658ca6865de2 1256 {
AzureIoTClient 14:4dc2b011be33 1257 LogError("Failure: allocating DEVICE_METHOD_INFO object");
AzureIoTClient 12:658ca6865de2 1258 }
AzureIoTClient 12:658ca6865de2 1259 else
AzureIoTClient 12:658ca6865de2 1260 {
AzureIoTClient 14:4dc2b011be33 1261 dev_method_info->request_id = STRING_new();
AzureIoTClient 14:4dc2b011be33 1262 if (dev_method_info->request_id == NULL)
AzureIoTClient 14:4dc2b011be33 1263 {
AzureIoTClient 14:4dc2b011be33 1264 LogError("Failure constructing request_id string");
AzureIoTClient 14:4dc2b011be33 1265 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1266 }
AzureIoTClient 14:4dc2b011be33 1267 else if (retrieve_device_method_rid_info(topic_resp, method_name, dev_method_info->request_id) != 0)
AzureIoTClient 12:658ca6865de2 1268 {
AzureIoTClient 14:4dc2b011be33 1269 LogError("Failure: retrieve device topic info");
AzureIoTClient 14:4dc2b011be33 1270 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1271 free(dev_method_info);
AzureIoTClient 12:658ca6865de2 1272 }
AzureIoTClient 14:4dc2b011be33 1273 else
AzureIoTClient 14:4dc2b011be33 1274 {
AzureIoTClient 14:4dc2b011be33 1275 /* 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 1276 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 14:4dc2b011be33 1277 if (IoTHubClient_LL_DeviceMethodComplete(transportData->llClientHandle, STRING_c_str(method_name), payload->message, payload->length, (void*)dev_method_info) != 0)
AzureIoTClient 14:4dc2b011be33 1278 {
AzureIoTClient 14:4dc2b011be33 1279 LogError("Failure: IoTHubClient_LL_DeviceMethodComplete");
AzureIoTClient 14:4dc2b011be33 1280 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 1281 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 1282 }
AzureIoTClient 14:4dc2b011be33 1283 }
AzureIoTClient 12:658ca6865de2 1284 }
AzureIoTClient 12:658ca6865de2 1285 STRING_delete(method_name);
AzureIoTClient 12:658ca6865de2 1286 }
AzureIoTClient 11:31ebaeb51e1e 1287 }
AzureIoTClient 11:31ebaeb51e1e 1288 else
AzureIoTClient 11:31ebaeb51e1e 1289 {
AzureIoTClient 12:658ca6865de2 1290 const APP_PAYLOAD* appPayload = mqttmessage_getApplicationMsg(msgHandle);
AzureIoTClient 12:658ca6865de2 1291 IOTHUB_MESSAGE_HANDLE IoTHubMessage = IoTHubMessage_CreateFromByteArray(appPayload->message, appPayload->length);
AzureIoTClient 12:658ca6865de2 1292 if (IoTHubMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 1293 {
AzureIoTClient 12:658ca6865de2 1294 LogError("Failure: IotHub Message creation has failed.");
AzureIoTClient 11:31ebaeb51e1e 1295 }
AzureIoTClient 11:31ebaeb51e1e 1296 else
AzureIoTClient 11:31ebaeb51e1e 1297 {
AzureIoTClient 12:658ca6865de2 1298 // Will need to update this when the service has messages that can be rejected
AzureIoTClient 12:658ca6865de2 1299 if (extractMqttProperties(IoTHubMessage, topic_resp) != 0)
AzureIoTClient 12:658ca6865de2 1300 {
AzureIoTClient 12:658ca6865de2 1301 LogError("failure extracting mqtt properties.");
AzureIoTClient 12:658ca6865de2 1302 }
AzureIoTClient 12:658ca6865de2 1303 else
AzureIoTClient 11:31ebaeb51e1e 1304 {
AzureIoTClient 19:f87dfe76bc70 1305 MESSAGE_CALLBACK_INFO* messageData = (MESSAGE_CALLBACK_INFO*)malloc(sizeof(MESSAGE_CALLBACK_INFO));
AzureIoTClient 19:f87dfe76bc70 1306 if (messageData == NULL)
AzureIoTClient 19:f87dfe76bc70 1307 {
AzureIoTClient 19:f87dfe76bc70 1308 LogError("malloc failed");
AzureIoTClient 19:f87dfe76bc70 1309 }
AzureIoTClient 19:f87dfe76bc70 1310 else
AzureIoTClient 12:658ca6865de2 1311 {
AzureIoTClient 19:f87dfe76bc70 1312 messageData->messageHandle = IoTHubMessage;
AzureIoTClient 19:f87dfe76bc70 1313 messageData->transportContext = NULL;
AzureIoTClient 19:f87dfe76bc70 1314
AzureIoTClient 19:f87dfe76bc70 1315 /* 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 1316 if (!IoTHubClient_LL_MessageCallback(transportData->llClientHandle, messageData))
AzureIoTClient 19:f87dfe76bc70 1317 {
AzureIoTClient 21:167f8fcf6fb1 1318 LogError("IoTHubClient_LL_MessageCallback returned false");
AzureIoTClient 19:f87dfe76bc70 1319
AzureIoTClient 19:f87dfe76bc70 1320 IoTHubMessage_Destroy(IoTHubMessage);
AzureIoTClient 19:f87dfe76bc70 1321 free(messageData);
AzureIoTClient 19:f87dfe76bc70 1322 }
AzureIoTClient 12:658ca6865de2 1323 }
AzureIoTClient 11:31ebaeb51e1e 1324 }
AzureIoTClient 11:31ebaeb51e1e 1325 }
AzureIoTClient 11:31ebaeb51e1e 1326 }
AzureIoTClient 11:31ebaeb51e1e 1327 }
AzureIoTClient 11:31ebaeb51e1e 1328 }
AzureIoTClient 11:31ebaeb51e1e 1329 }
AzureIoTClient 11:31ebaeb51e1e 1330
AzureIoTClient 11:31ebaeb51e1e 1331 static void mqtt_operation_complete_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_RESULT actionResult, const void* msgInfo, void* callbackCtx)
AzureIoTClient 11:31ebaeb51e1e 1332 {
AzureIoTClient 11:31ebaeb51e1e 1333 (void)handle;
AzureIoTClient 11:31ebaeb51e1e 1334 if (callbackCtx != NULL)
AzureIoTClient 11:31ebaeb51e1e 1335 {
AzureIoTClient 11:31ebaeb51e1e 1336 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 11:31ebaeb51e1e 1337
AzureIoTClient 11:31ebaeb51e1e 1338 switch (actionResult)
AzureIoTClient 11:31ebaeb51e1e 1339 {
AzureIoTClient 11:31ebaeb51e1e 1340 case MQTT_CLIENT_ON_PUBLISH_ACK:
AzureIoTClient 11:31ebaeb51e1e 1341 case MQTT_CLIENT_ON_PUBLISH_COMP:
AzureIoTClient 11:31ebaeb51e1e 1342 {
AzureIoTClient 11:31ebaeb51e1e 1343 const PUBLISH_ACK* puback = (const PUBLISH_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1344 if (puback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1345 {
AzureIoTClient 11:31ebaeb51e1e 1346 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 1347 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 1348 {
AzureIoTClient 11:31ebaeb51e1e 1349 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 1350 DLIST_ENTRY saveListEntry;
AzureIoTClient 11:31ebaeb51e1e 1351 saveListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 1352
AzureIoTClient 11:31ebaeb51e1e 1353 if (puback->packetId == mqttMsgEntry->packet_id)
AzureIoTClient 11:31ebaeb51e1e 1354 {
AzureIoTClient 11:31ebaeb51e1e 1355 (void)DList_RemoveEntryList(currentListEntry); //First remove the item from Waiting for Ack List.
AzureIoTClient 11:31ebaeb51e1e 1356 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_OK);
AzureIoTClient 11:31ebaeb51e1e 1357 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 1358 }
AzureIoTClient 11:31ebaeb51e1e 1359 currentListEntry = saveListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 1360 }
AzureIoTClient 11:31ebaeb51e1e 1361 }
AzureIoTClient 11:31ebaeb51e1e 1362 else
AzureIoTClient 11:31ebaeb51e1e 1363 {
AzureIoTClient 11:31ebaeb51e1e 1364 LogError("Failure: MQTT_CLIENT_ON_PUBLISH_ACK publish_ack structure NULL.");
AzureIoTClient 11:31ebaeb51e1e 1365 }
AzureIoTClient 11:31ebaeb51e1e 1366 break;
AzureIoTClient 11:31ebaeb51e1e 1367 }
AzureIoTClient 11:31ebaeb51e1e 1368 case MQTT_CLIENT_ON_CONNACK:
AzureIoTClient 11:31ebaeb51e1e 1369 {
AzureIoTClient 11:31ebaeb51e1e 1370 const CONNECT_ACK* connack = (const CONNECT_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1371 if (connack != NULL)
AzureIoTClient 11:31ebaeb51e1e 1372 {
AzureIoTClient 11:31ebaeb51e1e 1373 if (connack->returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 11:31ebaeb51e1e 1374 {
AzureIoTClient 11:31ebaeb51e1e 1375 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1376 transport_data->currPacketState = CONNACK_TYPE;
AzureIoTClient 12:658ca6865de2 1377 transport_data->isRecoverableError = true;
AzureIoTClient 20:594780be216d 1378 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTED;
AzureIoTClient 12:658ca6865de2 1379 StopRetryTimer(transport_data->retryLogic);
AzureIoTClient 19:f87dfe76bc70 1380 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_AUTHENTICATED, IOTHUB_CLIENT_CONNECTION_OK);
AzureIoTClient 11:31ebaeb51e1e 1381 }
AzureIoTClient 11:31ebaeb51e1e 1382 else
AzureIoTClient 11:31ebaeb51e1e 1383 {
AzureIoTClient 12:658ca6865de2 1384 if (connack->returnCode == CONN_REFUSED_BAD_USERNAME_PASSWORD)
AzureIoTClient 12:658ca6865de2 1385 {
AzureIoTClient 12:658ca6865de2 1386 transport_data->isRecoverableError = false;
AzureIoTClient 19:f87dfe76bc70 1387 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 12:658ca6865de2 1388 }
AzureIoTClient 12:658ca6865de2 1389 else if (connack->returnCode == CONN_REFUSED_NOT_AUTHORIZED)
AzureIoTClient 12:658ca6865de2 1390 {
AzureIoTClient 19:f87dfe76bc70 1391 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_DEVICE_DISABLED);
AzureIoTClient 12:658ca6865de2 1392 }
AzureIoTClient 12:658ca6865de2 1393 else if (connack->returnCode == CONN_REFUSED_UNACCEPTABLE_VERSION)
AzureIoTClient 12:658ca6865de2 1394 {
AzureIoTClient 12:658ca6865de2 1395 transport_data->isRecoverableError = false;
AzureIoTClient 12:658ca6865de2 1396 }
AzureIoTClient 11:31ebaeb51e1e 1397 LogError("Connection Not Accepted: 0x%x: %s", connack->returnCode, retrieve_mqtt_return_codes(connack->returnCode) );
AzureIoTClient 11:31ebaeb51e1e 1398 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 20:594780be216d 1399 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1400 transport_data->currPacketState = PACKET_TYPE_ERROR;
AzureIoTClient 11:31ebaeb51e1e 1401 }
AzureIoTClient 11:31ebaeb51e1e 1402 }
AzureIoTClient 11:31ebaeb51e1e 1403 else
AzureIoTClient 11:31ebaeb51e1e 1404 {
AzureIoTClient 11:31ebaeb51e1e 1405 LogError("MQTT_CLIENT_ON_CONNACK CONNACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1406 }
AzureIoTClient 11:31ebaeb51e1e 1407 break;
AzureIoTClient 11:31ebaeb51e1e 1408 }
AzureIoTClient 11:31ebaeb51e1e 1409 case MQTT_CLIENT_ON_SUBSCRIBE_ACK:
AzureIoTClient 11:31ebaeb51e1e 1410 {
AzureIoTClient 11:31ebaeb51e1e 1411 const SUBSCRIBE_ACK* suback = (const SUBSCRIBE_ACK*)msgInfo;
AzureIoTClient 11:31ebaeb51e1e 1412 if (suback != NULL)
AzureIoTClient 11:31ebaeb51e1e 1413 {
AzureIoTClient 16:14640ee83e99 1414 size_t index = 0;
AzureIoTClient 16:14640ee83e99 1415 for (index = 0; index < suback->qosCount; index++)
AzureIoTClient 11:31ebaeb51e1e 1416 {
AzureIoTClient 11:31ebaeb51e1e 1417 if (suback->qosReturn[index] == DELIVER_FAILURE)
AzureIoTClient 11:31ebaeb51e1e 1418 {
AzureIoTClient 11:31ebaeb51e1e 1419 LogError("Subscribe delivery failure of subscribe %zu", index);
AzureIoTClient 11:31ebaeb51e1e 1420 }
AzureIoTClient 11:31ebaeb51e1e 1421 }
AzureIoTClient 11:31ebaeb51e1e 1422 // The connect packet has been acked
AzureIoTClient 11:31ebaeb51e1e 1423 transport_data->currPacketState = SUBACK_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1424 }
AzureIoTClient 11:31ebaeb51e1e 1425 else
AzureIoTClient 11:31ebaeb51e1e 1426 {
AzureIoTClient 11:31ebaeb51e1e 1427 LogError("Failure: MQTT_CLIENT_ON_SUBSCRIBE_ACK SUBSCRIBE_ACK parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1428 }
AzureIoTClient 11:31ebaeb51e1e 1429 break;
AzureIoTClient 11:31ebaeb51e1e 1430 }
AzureIoTClient 11:31ebaeb51e1e 1431 case MQTT_CLIENT_ON_PUBLISH_RECV:
AzureIoTClient 11:31ebaeb51e1e 1432 case MQTT_CLIENT_ON_PUBLISH_REL:
AzureIoTClient 11:31ebaeb51e1e 1433 {
AzureIoTClient 11:31ebaeb51e1e 1434 // Currently not used
AzureIoTClient 11:31ebaeb51e1e 1435 break;
AzureIoTClient 11:31ebaeb51e1e 1436 }
AzureIoTClient 11:31ebaeb51e1e 1437 case MQTT_CLIENT_ON_DISCONNECT:
AzureIoTClient 11:31ebaeb51e1e 1438 {
AzureIoTClient 11:31ebaeb51e1e 1439 // Close the client so we can reconnect again
AzureIoTClient 20:594780be216d 1440 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1441 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1442 break;
AzureIoTClient 11:31ebaeb51e1e 1443 }
AzureIoTClient 17:774695cb8554 1444 case MQTT_CLIENT_ON_UNSUBSCRIBE_ACK:
AzureIoTClient 17:774695cb8554 1445 {
AzureIoTClient 17:774695cb8554 1446 break;
AzureIoTClient 17:774695cb8554 1447 }
AzureIoTClient 12:658ca6865de2 1448 }
AzureIoTClient 12:658ca6865de2 1449 }
AzureIoTClient 12:658ca6865de2 1450 }
AzureIoTClient 12:658ca6865de2 1451
AzureIoTClient 12:658ca6865de2 1452 static void mqtt_error_callback(MQTT_CLIENT_HANDLE handle, MQTT_CLIENT_EVENT_ERROR error, void* callbackCtx)
AzureIoTClient 12:658ca6865de2 1453 {
AzureIoTClient 12:658ca6865de2 1454 (void)handle;
AzureIoTClient 12:658ca6865de2 1455 if (callbackCtx != NULL)
AzureIoTClient 12:658ca6865de2 1456 {
AzureIoTClient 12:658ca6865de2 1457 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)callbackCtx;
AzureIoTClient 12:658ca6865de2 1458 switch (error)
AzureIoTClient 12:658ca6865de2 1459 {
AzureIoTClient 12:658ca6865de2 1460 case MQTT_CLIENT_CONNECTION_ERROR:
AzureIoTClient 11:31ebaeb51e1e 1461 {
AzureIoTClient 19:f87dfe76bc70 1462 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_NO_NETWORK);
AzureIoTClient 12:658ca6865de2 1463 break;
AzureIoTClient 12:658ca6865de2 1464 }
AzureIoTClient 20:594780be216d 1465 case MQTT_CLIENT_COMMUNICATION_ERROR:
AzureIoTClient 20:594780be216d 1466 {
AzureIoTClient 20:594780be216d 1467 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_COMMUNICATION_ERROR);
AzureIoTClient 20:594780be216d 1468 break;
AzureIoTClient 20:594780be216d 1469 }
AzureIoTClient 12:658ca6865de2 1470 case MQTT_CLIENT_NO_PING_RESPONSE:
AzureIoTClient 12:658ca6865de2 1471 {
AzureIoTClient 12:658ca6865de2 1472 LogError("Mqtt Ping Response was not encountered. Reconnecting device...");
AzureIoTClient 12:658ca6865de2 1473 break;
AzureIoTClient 11:31ebaeb51e1e 1474 }
AzureIoTClient 17:774695cb8554 1475 case MQTT_CLIENT_PARSE_ERROR:
AzureIoTClient 17:774695cb8554 1476 case MQTT_CLIENT_MEMORY_ERROR:
AzureIoTClient 17:774695cb8554 1477 case MQTT_CLIENT_UNKNOWN_ERROR:
AzureIoTClient 17:774695cb8554 1478 {
AzureIoTClient 17:774695cb8554 1479 LogError("INTERNAL ERROR: unexpected error value received %s", ENUM_TO_STRING(MQTT_CLIENT_EVENT_ERROR, error));
AzureIoTClient 20:594780be216d 1480 break;
AzureIoTClient 17:774695cb8554 1481 }
AzureIoTClient 11:31ebaeb51e1e 1482 }
AzureIoTClient 20:594780be216d 1483 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 1484 transport_data->currPacketState = PACKET_TYPE_ERROR;
Azure.IoT.Build 13:606465879c57 1485 transport_data->device_twin_get_sent = false;
AzureIoTClient 12:658ca6865de2 1486 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 12:658ca6865de2 1487 {
Azure.IoT.Build 13:606465879c57 1488 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
Azure.IoT.Build 13:606465879c57 1489 }
Azure.IoT.Build 13:606465879c57 1490 if (transport_data->topic_GetState != NULL)
Azure.IoT.Build 13:606465879c57 1491 {
Azure.IoT.Build 13:606465879c57 1492 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1493 }
Azure.IoT.Build 13:606465879c57 1494 if (transport_data->topic_NotifyState != NULL)
Azure.IoT.Build 13:606465879c57 1495 {
Azure.IoT.Build 13:606465879c57 1496 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
Azure.IoT.Build 13:606465879c57 1497 }
Azure.IoT.Build 13:606465879c57 1498 if (transport_data->topic_DeviceMethods != NULL)
Azure.IoT.Build 13:606465879c57 1499 {
Azure.IoT.Build 13:606465879c57 1500 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
Azure.IoT.Build 13:606465879c57 1501 }
Azure.IoT.Build 13:606465879c57 1502 }
AzureIoTClient 12:658ca6865de2 1503 else
AzureIoTClient 12:658ca6865de2 1504 {
AzureIoTClient 12:658ca6865de2 1505 LogError("Failure: mqtt called back with null context.");
AzureIoTClient 11:31ebaeb51e1e 1506 }
AzureIoTClient 11:31ebaeb51e1e 1507 }
AzureIoTClient 11:31ebaeb51e1e 1508
AzureIoTClient 11:31ebaeb51e1e 1509 static void SubscribeToMqttProtocol(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1510 {
AzureIoTClient 11:31ebaeb51e1e 1511 if (transport_data->topics_ToSubscribe != UNSUBSCRIBE_FROM_TOPIC)
AzureIoTClient 11:31ebaeb51e1e 1512 {
AzureIoTClient 11:31ebaeb51e1e 1513 uint32_t topic_subscription = 0;
AzureIoTClient 11:31ebaeb51e1e 1514 size_t subscribe_count = 0;
AzureIoTClient 11:31ebaeb51e1e 1515 SUBSCRIBE_PAYLOAD subscribe[SUBSCRIBE_TOPIC_COUNT];
AzureIoTClient 11:31ebaeb51e1e 1516 if ((transport_data->topic_MqttMessage != NULL) && (SUBSCRIBE_TELEMETRY_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 11:31ebaeb51e1e 1517 {
AzureIoTClient 11:31ebaeb51e1e 1518 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 1519 subscribe[subscribe_count].qosReturn = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1520 topic_subscription |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1521 subscribe_count++;
AzureIoTClient 11:31ebaeb51e1e 1522 }
AzureIoTClient 12:658ca6865de2 1523 if ((transport_data->topic_GetState != NULL) && (SUBSCRIBE_GET_REPORTED_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1524 {
AzureIoTClient 12:658ca6865de2 1525 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 1526 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1527 topic_subscription |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1528 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1529 }
AzureIoTClient 12:658ca6865de2 1530 if ((transport_data->topic_NotifyState != NULL) && (SUBSCRIBE_NOTIFICATION_STATE_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1531 {
AzureIoTClient 12:658ca6865de2 1532 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 1533 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1534 topic_subscription |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1535 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1536 }
AzureIoTClient 12:658ca6865de2 1537 if ((transport_data->topic_DeviceMethods != NULL) && (SUBSCRIBE_DEVICE_METHOD_TOPIC & transport_data->topics_ToSubscribe))
AzureIoTClient 12:658ca6865de2 1538 {
AzureIoTClient 12:658ca6865de2 1539 subscribe[subscribe_count].subscribeTopic = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 1540 subscribe[subscribe_count].qosReturn = DELIVER_AT_MOST_ONCE;
AzureIoTClient 12:658ca6865de2 1541 topic_subscription |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1542 subscribe_count++;
AzureIoTClient 12:658ca6865de2 1543 }
AzureIoTClient 11:31ebaeb51e1e 1544
AzureIoTClient 11:31ebaeb51e1e 1545 if (subscribe_count != 0)
AzureIoTClient 11:31ebaeb51e1e 1546 {
AzureIoTClient 12:658ca6865de2 1547 /* 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 1548 if (mqtt_client_subscribe(transport_data->mqttClient, get_next_packet_id(transport_data), subscribe, subscribe_count) != 0)
AzureIoTClient 11:31ebaeb51e1e 1549 {
AzureIoTClient 12:658ca6865de2 1550 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1551 LogError("Failure: mqtt_client_subscribe returned error.");
AzureIoTClient 11:31ebaeb51e1e 1552 }
AzureIoTClient 11:31ebaeb51e1e 1553 else
AzureIoTClient 11:31ebaeb51e1e 1554 {
AzureIoTClient 12:658ca6865de2 1555 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_018: [On success IoTHubTransport_MQTT_Common_Subscribe shall return 0.] */
AzureIoTClient 11:31ebaeb51e1e 1556 transport_data->topics_ToSubscribe &= ~topic_subscription;
AzureIoTClient 11:31ebaeb51e1e 1557 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1558 }
AzureIoTClient 11:31ebaeb51e1e 1559 }
AzureIoTClient 11:31ebaeb51e1e 1560 else
AzureIoTClient 11:31ebaeb51e1e 1561 {
AzureIoTClient 12:658ca6865de2 1562 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_017: [Upon failure IoTHubTransport_MQTT_Common_Subscribe shall return a non-zero value.] */
AzureIoTClient 11:31ebaeb51e1e 1563 LogError("Failure: subscribe_topic is empty.");
AzureIoTClient 11:31ebaeb51e1e 1564 }
AzureIoTClient 11:31ebaeb51e1e 1565 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1566 }
AzureIoTClient 11:31ebaeb51e1e 1567 else
AzureIoTClient 11:31ebaeb51e1e 1568 {
AzureIoTClient 11:31ebaeb51e1e 1569 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 1570 }
AzureIoTClient 11:31ebaeb51e1e 1571 }
AzureIoTClient 11:31ebaeb51e1e 1572
AzureIoTClient 11:31ebaeb51e1e 1573 static const unsigned char* RetrieveMessagePayload(IOTHUB_MESSAGE_HANDLE messageHandle, size_t* length)
AzureIoTClient 11:31ebaeb51e1e 1574 {
AzureIoTClient 11:31ebaeb51e1e 1575 const unsigned char* result;
AzureIoTClient 11:31ebaeb51e1e 1576
AzureIoTClient 11:31ebaeb51e1e 1577 IOTHUBMESSAGE_CONTENT_TYPE contentType = IoTHubMessage_GetContentType(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1578 if (contentType == IOTHUBMESSAGE_BYTEARRAY)
AzureIoTClient 11:31ebaeb51e1e 1579 {
AzureIoTClient 11:31ebaeb51e1e 1580 if (IoTHubMessage_GetByteArray(messageHandle, &result, length) != IOTHUB_MESSAGE_OK)
AzureIoTClient 11:31ebaeb51e1e 1581 {
AzureIoTClient 11:31ebaeb51e1e 1582 LogError("Failure result from IoTHubMessage_GetByteArray");
AzureIoTClient 11:31ebaeb51e1e 1583 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1584 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1585 }
AzureIoTClient 11:31ebaeb51e1e 1586 }
AzureIoTClient 11:31ebaeb51e1e 1587 else if (contentType == IOTHUBMESSAGE_STRING)
AzureIoTClient 11:31ebaeb51e1e 1588 {
AzureIoTClient 11:31ebaeb51e1e 1589 result = (const unsigned char*)IoTHubMessage_GetString(messageHandle);
AzureIoTClient 11:31ebaeb51e1e 1590 if (result == NULL)
AzureIoTClient 11:31ebaeb51e1e 1591 {
AzureIoTClient 11:31ebaeb51e1e 1592 LogError("Failure result from IoTHubMessage_GetString");
AzureIoTClient 11:31ebaeb51e1e 1593 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1594 *length = 0;
AzureIoTClient 11:31ebaeb51e1e 1595 }
AzureIoTClient 11:31ebaeb51e1e 1596 else
AzureIoTClient 11:31ebaeb51e1e 1597 {
AzureIoTClient 11:31ebaeb51e1e 1598 *length = strlen((const char*)result);
AzureIoTClient 11:31ebaeb51e1e 1599 }
AzureIoTClient 11:31ebaeb51e1e 1600 }
AzureIoTClient 11:31ebaeb51e1e 1601 else
AzureIoTClient 11:31ebaeb51e1e 1602 {
AzureIoTClient 11:31ebaeb51e1e 1603 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1604 *length = 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 GetTransportProviderIfNecessary(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1610 {
AzureIoTClient 11:31ebaeb51e1e 1611 int result;
AzureIoTClient 11:31ebaeb51e1e 1612
AzureIoTClient 11:31ebaeb51e1e 1613 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1614 {
AzureIoTClient 11:31ebaeb51e1e 1615 // construct address
AzureIoTClient 11:31ebaeb51e1e 1616 const char* hostAddress = STRING_c_str(transport_data->hostAddress);
AzureIoTClient 20:594780be216d 1617 MQTT_TRANSPORT_PROXY_OPTIONS mqtt_proxy_options;
AzureIoTClient 20:594780be216d 1618
AzureIoTClient 20:594780be216d 1619 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_011: [ If no `proxy_data` option has been set, NULL shall be passed as the argument `mqtt_transport_proxy_options` when calling the function `get_io_transport` passed in `IoTHubTransport_MQTT_Common__Create`. ]*/
AzureIoTClient 20:594780be216d 1620 mqtt_proxy_options.host_address = transport_data->http_proxy_hostname;
AzureIoTClient 20:594780be216d 1621 mqtt_proxy_options.port = transport_data->http_proxy_port;
AzureIoTClient 20:594780be216d 1622 mqtt_proxy_options.username = transport_data->http_proxy_username;
AzureIoTClient 20:594780be216d 1623 mqtt_proxy_options.password = transport_data->http_proxy_password;
AzureIoTClient 20:594780be216d 1624
AzureIoTClient 20:594780be216d 1625 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_010: [ If the `proxy_data` option has been set, the proxy options shall be filled in the argument `mqtt_transport_proxy_options` when calling the function `get_io_transport` passed in `IoTHubTransport_MQTT_Common__Create` to obtain the underlying IO handle. ]*/
AzureIoTClient 20:594780be216d 1626 transport_data->xioTransport = transport_data->get_io_transport(hostAddress, (transport_data->http_proxy_hostname == NULL) ? NULL : &mqtt_proxy_options);
AzureIoTClient 11:31ebaeb51e1e 1627 if (transport_data->xioTransport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1628 {
AzureIoTClient 11:31ebaeb51e1e 1629 LogError("Unable to create the lower level TLS layer.");
AzureIoTClient 18:ec8e5e97c6a4 1630 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1631 }
AzureIoTClient 11:31ebaeb51e1e 1632 else
AzureIoTClient 11:31ebaeb51e1e 1633 {
AzureIoTClient 11:31ebaeb51e1e 1634 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1635 }
AzureIoTClient 11:31ebaeb51e1e 1636 }
AzureIoTClient 11:31ebaeb51e1e 1637 else
AzureIoTClient 11:31ebaeb51e1e 1638 {
AzureIoTClient 11:31ebaeb51e1e 1639 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1640 }
AzureIoTClient 11:31ebaeb51e1e 1641 return result;
AzureIoTClient 11:31ebaeb51e1e 1642 }
AzureIoTClient 11:31ebaeb51e1e 1643
AzureIoTClient 11:31ebaeb51e1e 1644 static int SendMqttConnectMsg(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1645 {
AzureIoTClient 11:31ebaeb51e1e 1646 int result;
AzureIoTClient 11:31ebaeb51e1e 1647
AzureIoTClient 21:167f8fcf6fb1 1648 char* sasToken = NULL;
AzureIoTClient 21:167f8fcf6fb1 1649 result = 0;
AzureIoTClient 21:167f8fcf6fb1 1650
AzureIoTClient 21:167f8fcf6fb1 1651 IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 1652 if (cred_type == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY)
AzureIoTClient 11:31ebaeb51e1e 1653 {
AzureIoTClient 21:167f8fcf6fb1 1654 size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
AzureIoTClient 21:167f8fcf6fb1 1655 size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
AzureIoTClient 21:167f8fcf6fb1 1656 sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, STRING_c_str(transport_data->devicesPath), expiryTime);
AzureIoTClient 21:167f8fcf6fb1 1657 if (sasToken == NULL)
AzureIoTClient 21:167f8fcf6fb1 1658 {
AzureIoTClient 21:167f8fcf6fb1 1659 LogError("failure getting sas Token.");
AzureIoTClient 21:167f8fcf6fb1 1660 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1661 }
AzureIoTClient 11:31ebaeb51e1e 1662 }
AzureIoTClient 21:167f8fcf6fb1 1663 else if (cred_type == IOTHUB_CREDENTIAL_TYPE_SAS_TOKEN)
AzureIoTClient 11:31ebaeb51e1e 1664 {
AzureIoTClient 21:167f8fcf6fb1 1665 SAS_TOKEN_STATUS token_status = IoTHubClient_Auth_Is_SasToken_Valid(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 1666 if (token_status == SAS_TOKEN_STATUS_INVALID)
AzureIoTClient 21:167f8fcf6fb1 1667 {
AzureIoTClient 21:167f8fcf6fb1 1668 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 21:167f8fcf6fb1 1669 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1670 }
AzureIoTClient 21:167f8fcf6fb1 1671 else if (token_status == SAS_TOKEN_STATUS_FAILED)
AzureIoTClient 11:31ebaeb51e1e 1672 {
AzureIoTClient 21:167f8fcf6fb1 1673 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_BAD_CREDENTIAL);
AzureIoTClient 21:167f8fcf6fb1 1674 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1675 }
AzureIoTClient 21:167f8fcf6fb1 1676 else
AzureIoTClient 21:167f8fcf6fb1 1677 {
AzureIoTClient 21:167f8fcf6fb1 1678 sasToken = IoTHubClient_Auth_Get_SasToken(transport_data->authorization_module, NULL, 0);
AzureIoTClient 21:167f8fcf6fb1 1679 if (sasToken == NULL)
AzureIoTClient 11:31ebaeb51e1e 1680 {
AzureIoTClient 21:167f8fcf6fb1 1681 LogError("failure getting sas Token.");
AzureIoTClient 18:ec8e5e97c6a4 1682 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 1683 }
AzureIoTClient 21:167f8fcf6fb1 1684 }
AzureIoTClient 21:167f8fcf6fb1 1685 }
AzureIoTClient 11:31ebaeb51e1e 1686
AzureIoTClient 21:167f8fcf6fb1 1687 if (result == 0)
AzureIoTClient 21:167f8fcf6fb1 1688 {
AzureIoTClient 21:167f8fcf6fb1 1689 MQTT_CLIENT_OPTIONS options = { 0 };
AzureIoTClient 21:167f8fcf6fb1 1690 options.clientId = (char*)STRING_c_str(transport_data->device_id);
AzureIoTClient 21:167f8fcf6fb1 1691 options.willMessage = NULL;
AzureIoTClient 21:167f8fcf6fb1 1692 options.username = (char*)STRING_c_str(transport_data->configPassedThroughUsername);
AzureIoTClient 21:167f8fcf6fb1 1693 if (sasToken != NULL)
AzureIoTClient 11:31ebaeb51e1e 1694 {
AzureIoTClient 21:167f8fcf6fb1 1695 options.password = sasToken;
AzureIoTClient 21:167f8fcf6fb1 1696 }
AzureIoTClient 21:167f8fcf6fb1 1697 options.keepAliveInterval = transport_data->keepAliveValue;
AzureIoTClient 21:167f8fcf6fb1 1698 options.useCleanSession = false;
AzureIoTClient 21:167f8fcf6fb1 1699 options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
AzureIoTClient 11:31ebaeb51e1e 1700
AzureIoTClient 21:167f8fcf6fb1 1701 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 21:167f8fcf6fb1 1702 {
AzureIoTClient 21:167f8fcf6fb1 1703 if (mqtt_client_connect(transport_data->mqttClient, transport_data->xioTransport, &options) != 0)
AzureIoTClient 11:31ebaeb51e1e 1704 {
AzureIoTClient 21:167f8fcf6fb1 1705 LogError("failure connecting to address %s:%d.", STRING_c_str(transport_data->hostAddress), transport_data->portNum);
AzureIoTClient 21:167f8fcf6fb1 1706 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1707 }
AzureIoTClient 11:31ebaeb51e1e 1708 else
AzureIoTClient 11:31ebaeb51e1e 1709 {
AzureIoTClient 21:167f8fcf6fb1 1710 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->mqtt_connect_time);
AzureIoTClient 21:167f8fcf6fb1 1711 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1712 }
AzureIoTClient 21:167f8fcf6fb1 1713 }
AzureIoTClient 21:167f8fcf6fb1 1714 else
AzureIoTClient 21:167f8fcf6fb1 1715 {
AzureIoTClient 21:167f8fcf6fb1 1716 result = __FAILURE__;
AzureIoTClient 21:167f8fcf6fb1 1717 }
AzureIoTClient 12:658ca6865de2 1718
AzureIoTClient 21:167f8fcf6fb1 1719 if (sasToken != NULL)
AzureIoTClient 21:167f8fcf6fb1 1720 {
AzureIoTClient 21:167f8fcf6fb1 1721 free(sasToken);
AzureIoTClient 11:31ebaeb51e1e 1722 }
AzureIoTClient 11:31ebaeb51e1e 1723 }
AzureIoTClient 11:31ebaeb51e1e 1724 return result;
AzureIoTClient 11:31ebaeb51e1e 1725 }
AzureIoTClient 11:31ebaeb51e1e 1726
AzureIoTClient 20:594780be216d 1727 static void DisconnectFromClient(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 20:594780be216d 1728 {
AzureIoTClient 21:167f8fcf6fb1 1729 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1730 xio_destroy(transport_data->xioTransport);
AzureIoTClient 21:167f8fcf6fb1 1731 transport_data->xioTransport = NULL;
AzureIoTClient 20:594780be216d 1732
AzureIoTClient 21:167f8fcf6fb1 1733 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 21:167f8fcf6fb1 1734 transport_data->currPacketState = DISCONNECT_TYPE;
AzureIoTClient 20:594780be216d 1735 }
AzureIoTClient 20:594780be216d 1736
AzureIoTClient 11:31ebaeb51e1e 1737 static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transport_data)
AzureIoTClient 11:31ebaeb51e1e 1738 {
AzureIoTClient 11:31ebaeb51e1e 1739 int result = 0;
AzureIoTClient 11:31ebaeb51e1e 1740
AzureIoTClient 11:31ebaeb51e1e 1741 // Make sure we're not destroying the object
AzureIoTClient 11:31ebaeb51e1e 1742 if (!transport_data->isDestroyCalled)
AzureIoTClient 11:31ebaeb51e1e 1743 {
AzureIoTClient 20:594780be216d 1744 // If we are MQTT_CLIENT_STATUS_NOT_CONNECTED then check to see if we need
AzureIoTClient 11:31ebaeb51e1e 1745 // to back off the connecting to the server
AzureIoTClient 20:594780be216d 1746 if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_NOT_CONNECTED && transport_data->isRecoverableError && CanRetry(transport_data->retryLogic))
AzureIoTClient 11:31ebaeb51e1e 1747 {
Azure.IoT.Build 13:606465879c57 1748 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &transport_data->connectTick) != 0)
AzureIoTClient 11:31ebaeb51e1e 1749 {
AzureIoTClient 12:658ca6865de2 1750 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1751 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1752 }
AzureIoTClient 12:658ca6865de2 1753 else
AzureIoTClient 11:31ebaeb51e1e 1754 {
AzureIoTClient 12:658ca6865de2 1755 if (SendMqttConnectMsg(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 1756 {
AzureIoTClient 11:31ebaeb51e1e 1757 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1758 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1759 }
AzureIoTClient 11:31ebaeb51e1e 1760 else
AzureIoTClient 11:31ebaeb51e1e 1761 {
AzureIoTClient 20:594780be216d 1762 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_CONNECTING;
AzureIoTClient 12:658ca6865de2 1763 transport_data->connectFailCount = 0;
AzureIoTClient 12:658ca6865de2 1764 result = 0;
AzureIoTClient 11:31ebaeb51e1e 1765 }
AzureIoTClient 11:31ebaeb51e1e 1766 }
AzureIoTClient 11:31ebaeb51e1e 1767 }
AzureIoTClient 21:167f8fcf6fb1 1768 // Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_09_001: [ IoTHubTransport_MQTT_Common_DoWork shall trigger reconnection if the mqtt_client_connect does not complete within `keepalive` seconds]
AzureIoTClient 20:594780be216d 1769 else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTING)
AzureIoTClient 11:31ebaeb51e1e 1770 {
AzureIoTClient 20:594780be216d 1771 tickcounter_ms_t current_time;
AzureIoTClient 20:594780be216d 1772 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 20:594780be216d 1773 {
AzureIoTClient 20:594780be216d 1774 LogError("failed verifying MQTT_CLIENT_STATUS_CONNECTING timeout");
AzureIoTClient 20:594780be216d 1775 result = __FAILURE__;
AzureIoTClient 20:594780be216d 1776 }
AzureIoTClient 20:594780be216d 1777 else if ((current_time - transport_data->mqtt_connect_time) / 1000 > transport_data->keepAliveValue)
AzureIoTClient 20:594780be216d 1778 {
AzureIoTClient 20:594780be216d 1779 LogError("mqtt_client timed out waiting for CONNACK");
AzureIoTClient 20:594780be216d 1780 DisconnectFromClient(transport_data);
AzureIoTClient 20:594780be216d 1781 result = 0;
AzureIoTClient 20:594780be216d 1782 }
AzureIoTClient 20:594780be216d 1783 }
AzureIoTClient 20:594780be216d 1784 else if (transport_data->mqttClientStatus == MQTT_CLIENT_STATUS_CONNECTED)
AzureIoTClient 20:594780be216d 1785 {
AzureIoTClient 20:594780be216d 1786 // We are connected and not being closed, so does SAS need to reconnect?
Azure.IoT.Build 13:606465879c57 1787 tickcounter_ms_t current_time;
Azure.IoT.Build 13:606465879c57 1788 if (tickcounter_get_current_ms(transport_data->msgTickCounter, &current_time) != 0)
AzureIoTClient 11:31ebaeb51e1e 1789 {
AzureIoTClient 11:31ebaeb51e1e 1790 transport_data->connectFailCount++;
AzureIoTClient 18:ec8e5e97c6a4 1791 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 1792 }
AzureIoTClient 11:31ebaeb51e1e 1793 else
AzureIoTClient 11:31ebaeb51e1e 1794 {
AzureIoTClient 11:31ebaeb51e1e 1795 if ((current_time - transport_data->mqtt_connect_time) / 1000 > (SAS_TOKEN_DEFAULT_LIFETIME*SAS_REFRESH_MULTIPLIER))
AzureIoTClient 11:31ebaeb51e1e 1796 {
AzureIoTClient 11:31ebaeb51e1e 1797 (void)mqtt_client_disconnect(transport_data->mqttClient);
AzureIoTClient 19:f87dfe76bc70 1798 IoTHubClient_LL_ConnectionStatusCallBack(transport_data->llClientHandle, IOTHUB_CLIENT_CONNECTION_UNAUTHENTICATED, IOTHUB_CLIENT_CONNECTION_EXPIRED_SAS_TOKEN);
AzureIoTClient 20:594780be216d 1799 transport_data->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 11:31ebaeb51e1e 1800 transport_data->currPacketState = UNKNOWN_TYPE;
AzureIoTClient 12:658ca6865de2 1801 transport_data->device_twin_get_sent = false;
AzureIoTClient 11:31ebaeb51e1e 1802 if (transport_data->topic_MqttMessage != NULL)
AzureIoTClient 11:31ebaeb51e1e 1803 {
AzureIoTClient 11:31ebaeb51e1e 1804 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 1805 }
AzureIoTClient 12:658ca6865de2 1806 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 1807 {
AzureIoTClient 12:658ca6865de2 1808 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1809 }
AzureIoTClient 12:658ca6865de2 1810 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 1811 {
AzureIoTClient 12:658ca6865de2 1812 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 1813 }
AzureIoTClient 12:658ca6865de2 1814 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 1815 {
AzureIoTClient 12:658ca6865de2 1816 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 1817 }
AzureIoTClient 11:31ebaeb51e1e 1818 }
AzureIoTClient 11:31ebaeb51e1e 1819 }
AzureIoTClient 11:31ebaeb51e1e 1820 }
AzureIoTClient 11:31ebaeb51e1e 1821 }
AzureIoTClient 11:31ebaeb51e1e 1822 return result;
AzureIoTClient 11:31ebaeb51e1e 1823 }
AzureIoTClient 11:31ebaeb51e1e 1824
AzureIoTClient 11:31ebaeb51e1e 1825 static STRING_HANDLE buildConfigForUsername(const IOTHUB_CLIENT_CONFIG* upperConfig)
AzureIoTClient 11:31ebaeb51e1e 1826 {
AzureIoTClient 12:658ca6865de2 1827 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 1828 return result;
AzureIoTClient 11:31ebaeb51e1e 1829 }
AzureIoTClient 11:31ebaeb51e1e 1830
AzureIoTClient 21:167f8fcf6fb1 1831 static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend, IOTHUB_AUTHORIZATION_HANDLE auth_module)
AzureIoTClient 11:31ebaeb51e1e 1832 {
AzureIoTClient 11:31ebaeb51e1e 1833 PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
AzureIoTClient 11:31ebaeb51e1e 1834 if (state == NULL)
AzureIoTClient 11:31ebaeb51e1e 1835 {
AzureIoTClient 11:31ebaeb51e1e 1836 LogError("Could not create MQTT transport state. Memory allocation failed.");
AzureIoTClient 11:31ebaeb51e1e 1837 }
AzureIoTClient 11:31ebaeb51e1e 1838 else
AzureIoTClient 11:31ebaeb51e1e 1839 {
AzureIoTClient 21:167f8fcf6fb1 1840 memset(state, 0, sizeof(MQTTTRANSPORT_HANDLE_DATA) );
AzureIoTClient 21:167f8fcf6fb1 1841 if ((state->msgTickCounter = tickcounter_create()) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1842 {
AzureIoTClient 21:167f8fcf6fb1 1843 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 21:167f8fcf6fb1 1844 free(state);
AzureIoTClient 21:167f8fcf6fb1 1845 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1846 }
AzureIoTClient 21:167f8fcf6fb1 1847 else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
AzureIoTClient 21:167f8fcf6fb1 1848 {
AzureIoTClient 21:167f8fcf6fb1 1849 LogError("failure constructing device_id.");
Azure.IoT.Build 13:606465879c57 1850 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1851 free(state);
AzureIoTClient 11:31ebaeb51e1e 1852 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1853 }
AzureIoTClient 21:167f8fcf6fb1 1854 else if ((state->devicesPath = STRING_construct_sprintf("%s.%s/devices/%s", upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId)) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1855 {
Azure.IoT.Build 13:606465879c57 1856 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1857 free(state);
AzureIoTClient 11:31ebaeb51e1e 1858 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1859 }
AzureIoTClient 11:31ebaeb51e1e 1860 else
AzureIoTClient 11:31ebaeb51e1e 1861 {
AzureIoTClient 21:167f8fcf6fb1 1862 if ( (state->topic_MqttEvent = STRING_construct_sprintf(TOPIC_DEVICE_DEVICE, upperConfig->deviceId) ) == NULL)
AzureIoTClient 11:31ebaeb51e1e 1863 {
AzureIoTClient 21:167f8fcf6fb1 1864 LogError("Could not create topic_MqttEvent for MQTT");
AzureIoTClient 11:31ebaeb51e1e 1865 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1866 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1867 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1868 free(state);
AzureIoTClient 11:31ebaeb51e1e 1869 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1870 }
AzureIoTClient 11:31ebaeb51e1e 1871 else
AzureIoTClient 11:31ebaeb51e1e 1872 {
AzureIoTClient 21:167f8fcf6fb1 1873 state->mqttClient = mqtt_client_init(mqtt_notification_callback, mqtt_operation_complete_callback, state, mqtt_error_callback, state);
AzureIoTClient 21:167f8fcf6fb1 1874 if (state->mqttClient == NULL)
AzureIoTClient 11:31ebaeb51e1e 1875 {
AzureIoTClient 21:167f8fcf6fb1 1876 LogError("failure initializing mqtt client.");
AzureIoTClient 11:31ebaeb51e1e 1877 STRING_delete(state->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 1878 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 1879 STRING_delete(state->device_id);
Azure.IoT.Build 13:606465879c57 1880 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 11:31ebaeb51e1e 1881 free(state);
AzureIoTClient 11:31ebaeb51e1e 1882 state = NULL;
AzureIoTClient 11:31ebaeb51e1e 1883 }
AzureIoTClient 11:31ebaeb51e1e 1884 else
AzureIoTClient 11:31ebaeb51e1e 1885 {
AzureIoTClient 21:167f8fcf6fb1 1886 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [If the upperConfig contains a valid protocolGatewayHostName value the this shall be used for the hostname, otherwise the hostname shall be constructed using the iothubname and iothubSuffix.] */
AzureIoTClient 21:167f8fcf6fb1 1887 if (upperConfig->protocolGatewayHostName == NULL)
AzureIoTClient 21:167f8fcf6fb1 1888 {
AzureIoTClient 21:167f8fcf6fb1 1889 state->hostAddress = STRING_construct_sprintf("%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
AzureIoTClient 21:167f8fcf6fb1 1890 }
AzureIoTClient 21:167f8fcf6fb1 1891 else
AzureIoTClient 21:167f8fcf6fb1 1892 {
AzureIoTClient 21:167f8fcf6fb1 1893 state->hostAddress = STRING_construct(upperConfig->protocolGatewayHostName);
AzureIoTClient 21:167f8fcf6fb1 1894 }
AzureIoTClient 21:167f8fcf6fb1 1895
AzureIoTClient 21:167f8fcf6fb1 1896 if (state->hostAddress == NULL)
AzureIoTClient 21:167f8fcf6fb1 1897 {
AzureIoTClient 21:167f8fcf6fb1 1898 LogError("failure constructing host address.");
AzureIoTClient 21:167f8fcf6fb1 1899 STRING_delete(state->devicesPath);
AzureIoTClient 21:167f8fcf6fb1 1900 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1901 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 21:167f8fcf6fb1 1902 STRING_delete(state->device_id);
AzureIoTClient 21:167f8fcf6fb1 1903 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 21:167f8fcf6fb1 1904 free(state);
AzureIoTClient 21:167f8fcf6fb1 1905 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1906 }
AzureIoTClient 21:167f8fcf6fb1 1907 else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
AzureIoTClient 21:167f8fcf6fb1 1908 {
AzureIoTClient 21:167f8fcf6fb1 1909 STRING_delete(state->devicesPath);
AzureIoTClient 21:167f8fcf6fb1 1910 mqtt_client_deinit(state->mqttClient);
AzureIoTClient 21:167f8fcf6fb1 1911 STRING_delete(state->hostAddress);
AzureIoTClient 21:167f8fcf6fb1 1912 STRING_delete(state->topic_MqttEvent);
AzureIoTClient 21:167f8fcf6fb1 1913 STRING_delete(state->device_id);
AzureIoTClient 21:167f8fcf6fb1 1914 tickcounter_destroy(state->msgTickCounter);
AzureIoTClient 21:167f8fcf6fb1 1915 free(state);
AzureIoTClient 21:167f8fcf6fb1 1916 state = NULL;
AzureIoTClient 21:167f8fcf6fb1 1917 }
AzureIoTClient 21:167f8fcf6fb1 1918 else
AzureIoTClient 21:167f8fcf6fb1 1919 {
AzureIoTClient 21:167f8fcf6fb1 1920 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransport_MQTT_Common_Create shall allocate memory to save its internal state where all topics, hostname, device_id, device_key, sasTokenSr and client handle shall be saved.] */
AzureIoTClient 21:167f8fcf6fb1 1921 DList_InitializeListHead(&(state->telemetry_waitingForAck));
AzureIoTClient 21:167f8fcf6fb1 1922 DList_InitializeListHead(&(state->ack_waiting_queue));
AzureIoTClient 21:167f8fcf6fb1 1923 state->isDestroyCalled = false;
AzureIoTClient 21:167f8fcf6fb1 1924 state->isRegistered = false;
AzureIoTClient 21:167f8fcf6fb1 1925 state->mqttClientStatus = MQTT_CLIENT_STATUS_NOT_CONNECTED;
AzureIoTClient 21:167f8fcf6fb1 1926 state->device_twin_get_sent = false;
AzureIoTClient 21:167f8fcf6fb1 1927 state->isRecoverableError = true;
AzureIoTClient 21:167f8fcf6fb1 1928 state->packetId = 1;
AzureIoTClient 21:167f8fcf6fb1 1929 state->llClientHandle = NULL;
AzureIoTClient 21:167f8fcf6fb1 1930 state->xioTransport = NULL;
AzureIoTClient 21:167f8fcf6fb1 1931 state->portNum = 0;
AzureIoTClient 21:167f8fcf6fb1 1932 state->waitingToSend = waitingToSend;
AzureIoTClient 21:167f8fcf6fb1 1933 state->currPacketState = CONNECT_TYPE;
AzureIoTClient 21:167f8fcf6fb1 1934 state->keepAliveValue = DEFAULT_MQTT_KEEPALIVE;
AzureIoTClient 21:167f8fcf6fb1 1935 state->connectFailCount = 0;
AzureIoTClient 21:167f8fcf6fb1 1936 state->connectTick = 0;
AzureIoTClient 21:167f8fcf6fb1 1937 state->topic_MqttMessage = NULL;
AzureIoTClient 21:167f8fcf6fb1 1938 state->topic_GetState = NULL;
AzureIoTClient 21:167f8fcf6fb1 1939 state->topic_NotifyState = NULL;
AzureIoTClient 21:167f8fcf6fb1 1940 state->topics_ToSubscribe = UNSUBSCRIBE_FROM_TOPIC;
AzureIoTClient 21:167f8fcf6fb1 1941 state->topic_DeviceMethods = NULL;
AzureIoTClient 21:167f8fcf6fb1 1942 state->log_trace = state->raw_trace = false;
AzureIoTClient 21:167f8fcf6fb1 1943 state->retryLogic = NULL;
AzureIoTClient 21:167f8fcf6fb1 1944 srand((unsigned int)get_time(NULL));
AzureIoTClient 21:167f8fcf6fb1 1945 state->authorization_module = auth_module;
AzureIoTClient 21:167f8fcf6fb1 1946 }
AzureIoTClient 11:31ebaeb51e1e 1947 }
AzureIoTClient 11:31ebaeb51e1e 1948 }
AzureIoTClient 11:31ebaeb51e1e 1949 }
AzureIoTClient 11:31ebaeb51e1e 1950 }
AzureIoTClient 11:31ebaeb51e1e 1951 return state;
AzureIoTClient 11:31ebaeb51e1e 1952 }
AzureIoTClient 11:31ebaeb51e1e 1953
AzureIoTClient 11:31ebaeb51e1e 1954 TRANSPORT_LL_HANDLE IoTHubTransport_MQTT_Common_Create(const IOTHUBTRANSPORT_CONFIG* config, MQTT_GET_IO_TRANSPORT get_io_transport)
AzureIoTClient 11:31ebaeb51e1e 1955 {
AzureIoTClient 11:31ebaeb51e1e 1956 PMQTTTRANSPORT_HANDLE_DATA result;
AzureIoTClient 11:31ebaeb51e1e 1957 size_t deviceIdSize;
AzureIoTClient 11:31ebaeb51e1e 1958
AzureIoTClient 12:658ca6865de2 1959 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_001: [If parameter config is NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1960 /* 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 1961 if (config == NULL || get_io_transport == NULL)
AzureIoTClient 11:31ebaeb51e1e 1962 {
AzureIoTClient 11:31ebaeb51e1e 1963 LogError("Invalid Argument: Config Parameter is NULL.");
AzureIoTClient 11:31ebaeb51e1e 1964 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1965 }
AzureIoTClient 12:658ca6865de2 1966 /* 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 1967 /* 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 1968 /* 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 1969 else if (config->upperConfig == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1970 config->upperConfig->protocol == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1971 config->upperConfig->deviceId == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1972 ((config->upperConfig->deviceKey != NULL) && (config->upperConfig->deviceSasToken != NULL)) ||
AzureIoTClient 11:31ebaeb51e1e 1973 config->upperConfig->iotHubName == NULL ||
AzureIoTClient 11:31ebaeb51e1e 1974 config->upperConfig->iotHubSuffix == NULL)
AzureIoTClient 11:31ebaeb51e1e 1975 {
AzureIoTClient 11:31ebaeb51e1e 1976 LogError("Invalid Argument: upperConfig structure contains an invalid parameter");
AzureIoTClient 11:31ebaeb51e1e 1977 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1978 }
AzureIoTClient 21:167f8fcf6fb1 1979 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig, auth_module_handle or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 11:31ebaeb51e1e 1980 else if (config->waitingToSend == NULL)
AzureIoTClient 11:31ebaeb51e1e 1981 {
AzureIoTClient 11:31ebaeb51e1e 1982 LogError("Invalid Argument: waitingToSend is NULL)");
AzureIoTClient 11:31ebaeb51e1e 1983 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1984 }
AzureIoTClient 21:167f8fcf6fb1 1985 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_002: [If the parameter config's variables upperConfig, auth_module_handle or waitingToSend are NULL then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 21:167f8fcf6fb1 1986 else if (config->auth_module_handle == NULL)
AzureIoTClient 21:167f8fcf6fb1 1987 {
AzureIoTClient 21:167f8fcf6fb1 1988 LogError("Invalid Argument: auth_module_handle is NULL)");
AzureIoTClient 21:167f8fcf6fb1 1989 result = NULL;
AzureIoTClient 21:167f8fcf6fb1 1990 }
AzureIoTClient 12:658ca6865de2 1991 /* 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 1992 else if ( ( (deviceIdSize = strlen(config->upperConfig->deviceId)) > 128U) || (deviceIdSize == 0) )
AzureIoTClient 11:31ebaeb51e1e 1993 {
AzureIoTClient 11:31ebaeb51e1e 1994 LogError("Invalid Argument: DeviceId is of an invalid size");
AzureIoTClient 11:31ebaeb51e1e 1995 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 1996 }
AzureIoTClient 12:658ca6865de2 1997 /* 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 1998 else if ((config->upperConfig->deviceKey != NULL) && (strlen(config->upperConfig->deviceKey) == 0))
AzureIoTClient 11:31ebaeb51e1e 1999 {
AzureIoTClient 11:31ebaeb51e1e 2000 LogError("Invalid Argument: deviceKey is empty");
AzureIoTClient 11:31ebaeb51e1e 2001 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2002 }
AzureIoTClient 12:658ca6865de2 2003 /* 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 2004 else if ((config->upperConfig->deviceSasToken != NULL) && (strlen(config->upperConfig->deviceSasToken) == 0))
AzureIoTClient 11:31ebaeb51e1e 2005 {
AzureIoTClient 11:31ebaeb51e1e 2006 LogError("Invalid Argument: deviceSasToken is empty");
AzureIoTClient 11:31ebaeb51e1e 2007 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2008 }
AzureIoTClient 12:658ca6865de2 2009 /* 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 2010 else if (strlen(config->upperConfig->iotHubName) == 0)
AzureIoTClient 11:31ebaeb51e1e 2011 {
AzureIoTClient 11:31ebaeb51e1e 2012 LogError("Invalid Argument: iotHubName is empty");
AzureIoTClient 11:31ebaeb51e1e 2013 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2014 }
AzureIoTClient 11:31ebaeb51e1e 2015 else
AzureIoTClient 11:31ebaeb51e1e 2016 {
AzureIoTClient 21:167f8fcf6fb1 2017 result = InitializeTransportHandleData(config->upperConfig, config->waitingToSend, config->auth_module_handle);
Azure.IoT.Build 13:606465879c57 2018 if (result != NULL)
AzureIoTClient 11:31ebaeb51e1e 2019 {
AzureIoTClient 11:31ebaeb51e1e 2020 result->get_io_transport = get_io_transport;
AzureIoTClient 20:594780be216d 2021 result->http_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 2022 result->http_proxy_username = NULL;
AzureIoTClient 20:594780be216d 2023 result->http_proxy_password = NULL;
AzureIoTClient 11:31ebaeb51e1e 2024 }
AzureIoTClient 11:31ebaeb51e1e 2025 }
AzureIoTClient 12:658ca6865de2 2026 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_009: [If any error is encountered then IoTHubTransport_MQTT_Common_Create shall return NULL.] */
AzureIoTClient 12:658ca6865de2 2027 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_011: [On Success IoTHubTransport_MQTT_Common_Create shall return a non-NULL value.] */
AzureIoTClient 11:31ebaeb51e1e 2028 return result;
AzureIoTClient 11:31ebaeb51e1e 2029 }
AzureIoTClient 11:31ebaeb51e1e 2030
AzureIoTClient 11:31ebaeb51e1e 2031 void IoTHubTransport_MQTT_Common_Destroy(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2032 {
AzureIoTClient 12:658ca6865de2 2033 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransport_MQTT_Common_Destroy shall do nothing if parameter handle is NULL.] */
AzureIoTClient 11:31ebaeb51e1e 2034 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2035 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2036 {
AzureIoTClient 11:31ebaeb51e1e 2037 transport_data->isDestroyCalled = true;
AzureIoTClient 11:31ebaeb51e1e 2038
AzureIoTClient 11:31ebaeb51e1e 2039 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2040
AzureIoTClient 11:31ebaeb51e1e 2041 //Empty the Waiting for Ack Messages.
AzureIoTClient 11:31ebaeb51e1e 2042 while (!DList_IsListEmpty(&transport_data->telemetry_waitingForAck))
AzureIoTClient 11:31ebaeb51e1e 2043 {
AzureIoTClient 11:31ebaeb51e1e 2044 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->telemetry_waitingForAck);
AzureIoTClient 11:31ebaeb51e1e 2045 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2046 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY);
AzureIoTClient 11:31ebaeb51e1e 2047 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2048 }
AzureIoTClient 12:658ca6865de2 2049 while (!DList_IsListEmpty(&transport_data->ack_waiting_queue))
AzureIoTClient 12:658ca6865de2 2050 {
AzureIoTClient 12:658ca6865de2 2051 PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transport_data->ack_waiting_queue);
AzureIoTClient 12:658ca6865de2 2052 MQTT_DEVICE_TWIN_ITEM* mqtt_device_twin = containingRecord(currentEntry, MQTT_DEVICE_TWIN_ITEM, entry);
AzureIoTClient 12:658ca6865de2 2053 IoTHubClient_LL_ReportedStateComplete(transport_data->llClientHandle, mqtt_device_twin->iothub_msg_id, STATUS_CODE_TIMEOUT_VALUE);
AzureIoTClient 12:658ca6865de2 2054 free(mqtt_device_twin);
AzureIoTClient 12:658ca6865de2 2055 }
AzureIoTClient 11:31ebaeb51e1e 2056
AzureIoTClient 21:167f8fcf6fb1 2057 STRING_delete(transport_data->devicesPath);
AzureIoTClient 11:31ebaeb51e1e 2058
AzureIoTClient 12:658ca6865de2 2059 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransport_MQTT_Common_Destroy shall free all the resources currently in use.] */
AzureIoTClient 11:31ebaeb51e1e 2060 mqtt_client_deinit(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2061 STRING_delete(transport_data->topic_MqttEvent);
AzureIoTClient 11:31ebaeb51e1e 2062 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2063 STRING_delete(transport_data->device_id);
AzureIoTClient 11:31ebaeb51e1e 2064 STRING_delete(transport_data->hostAddress);
AzureIoTClient 11:31ebaeb51e1e 2065 STRING_delete(transport_data->configPassedThroughUsername);
AzureIoTClient 12:658ca6865de2 2066 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2067 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2068 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2069
Azure.IoT.Build 13:606465879c57 2070 tickcounter_destroy(transport_data->msgTickCounter);
AzureIoTClient 12:658ca6865de2 2071 DestroyRetryLogic(transport_data->retryLogic);
AzureIoTClient 20:594780be216d 2072 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_012: [ `IoTHubTransport_MQTT_Common_Destroy` shall free the stored proxy options. ]*/
AzureIoTClient 20:594780be216d 2073 free_proxy_data(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2074 free(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2075 }
AzureIoTClient 11:31ebaeb51e1e 2076 }
AzureIoTClient 11:31ebaeb51e1e 2077
AzureIoTClient 12:658ca6865de2 2078 int IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2079 {
AzureIoTClient 12:658ca6865de2 2080 int result;
AzureIoTClient 12:658ca6865de2 2081 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2082 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2083 {
AzureIoTClient 12:658ca6865de2 2084 /* 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 2085 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2086 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2087 }
AzureIoTClient 12:658ca6865de2 2088 else
AzureIoTClient 12:658ca6865de2 2089 {
AzureIoTClient 12:658ca6865de2 2090 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2091 {
AzureIoTClient 12:658ca6865de2 2092 /* 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 2093 transport_data->topic_GetState = STRING_construct(TOPIC_GET_DESIRED_STATE);
AzureIoTClient 12:658ca6865de2 2094 if (transport_data->topic_GetState == NULL)
AzureIoTClient 12:658ca6865de2 2095 {
AzureIoTClient 12:658ca6865de2 2096 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_046: [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return a non-zero value.] */
AzureIoTClient 12:658ca6865de2 2097 LogError("Failure: unable constructing reported state topic");
AzureIoTClient 18:ec8e5e97c6a4 2098 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2099 }
AzureIoTClient 12:658ca6865de2 2100 else
AzureIoTClient 12:658ca6865de2 2101 {
AzureIoTClient 12:658ca6865de2 2102 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2103 transport_data->topics_ToSubscribe |= SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2104 result = 0;
AzureIoTClient 12:658ca6865de2 2105 }
AzureIoTClient 12:658ca6865de2 2106 }
AzureIoTClient 12:658ca6865de2 2107 else
AzureIoTClient 12:658ca6865de2 2108 {
AzureIoTClient 12:658ca6865de2 2109 result = 0;
AzureIoTClient 12:658ca6865de2 2110 }
AzureIoTClient 12:658ca6865de2 2111 if (result == 0 && transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2112 {
AzureIoTClient 12:658ca6865de2 2113 /* 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 2114 transport_data->topic_NotifyState = STRING_construct(TOPIC_NOTIFICATION_STATE);
AzureIoTClient 12:658ca6865de2 2115 if (transport_data->topic_NotifyState == NULL)
AzureIoTClient 12:658ca6865de2 2116 {
AzureIoTClient 12:658ca6865de2 2117 LogError("Failure: unable constructing notify state topic");
AzureIoTClient 18:ec8e5e97c6a4 2118 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2119 }
AzureIoTClient 12:658ca6865de2 2120 else
AzureIoTClient 12:658ca6865de2 2121 {
AzureIoTClient 12:658ca6865de2 2122 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_047: [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceTwin shall return 0.] */
AzureIoTClient 12:658ca6865de2 2123 transport_data->topics_ToSubscribe |= SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2124 result = 0;
AzureIoTClient 12:658ca6865de2 2125 }
AzureIoTClient 12:658ca6865de2 2126 }
AzureIoTClient 12:658ca6865de2 2127 if (result == 0)
AzureIoTClient 12:658ca6865de2 2128 {
AzureIoTClient 12:658ca6865de2 2129 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2130 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2131 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2132 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2133 {
AzureIoTClient 12:658ca6865de2 2134 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2135 }
AzureIoTClient 12:658ca6865de2 2136 }
AzureIoTClient 12:658ca6865de2 2137 }
AzureIoTClient 12:658ca6865de2 2138 return result;
AzureIoTClient 12:658ca6865de2 2139 }
AzureIoTClient 12:658ca6865de2 2140
AzureIoTClient 12:658ca6865de2 2141 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceTwin(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2142 {
AzureIoTClient 12:658ca6865de2 2143 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2144 /* 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 2145 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2146 {
AzureIoTClient 12:658ca6865de2 2147 if (transport_data->topic_GetState != NULL)
AzureIoTClient 12:658ca6865de2 2148 {
AzureIoTClient 12:658ca6865de2 2149 /* 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 2150 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_GET_REPORTED_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2151 STRING_delete(transport_data->topic_GetState);
AzureIoTClient 12:658ca6865de2 2152 transport_data->topic_GetState = NULL;
AzureIoTClient 12:658ca6865de2 2153 }
AzureIoTClient 12:658ca6865de2 2154 if (transport_data->topic_NotifyState != NULL)
AzureIoTClient 12:658ca6865de2 2155 {
AzureIoTClient 12:658ca6865de2 2156 /* 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 2157 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_NOTIFICATION_STATE_TOPIC;
AzureIoTClient 12:658ca6865de2 2158 STRING_delete(transport_data->topic_NotifyState);
AzureIoTClient 12:658ca6865de2 2159 transport_data->topic_NotifyState = NULL;
AzureIoTClient 12:658ca6865de2 2160 }
AzureIoTClient 12:658ca6865de2 2161 }
AzureIoTClient 12:658ca6865de2 2162 else
AzureIoTClient 12:658ca6865de2 2163 {
AzureIoTClient 12:658ca6865de2 2164 LogError("Invalid argument to unsubscribe (handle is NULL).");
AzureIoTClient 12:658ca6865de2 2165 }
AzureIoTClient 12:658ca6865de2 2166 }
AzureIoTClient 12:658ca6865de2 2167
AzureIoTClient 12:658ca6865de2 2168 int IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2169 {
AzureIoTClient 12:658ca6865de2 2170 int result;
AzureIoTClient 12:658ca6865de2 2171 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2172
AzureIoTClient 12:658ca6865de2 2173 if (transport_data == NULL)
AzureIoTClient 12:658ca6865de2 2174 {
AzureIoTClient 12:658ca6865de2 2175 /*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 2176 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2177 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2178 }
AzureIoTClient 12:658ca6865de2 2179 else
AzureIoTClient 12:658ca6865de2 2180 {
AzureIoTClient 12:658ca6865de2 2181 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2182 {
AzureIoTClient 12:658ca6865de2 2183 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_004 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for subscribe.]*/
AzureIoTClient 12:658ca6865de2 2184 transport_data->topic_DeviceMethods = STRING_construct(TOPIC_DEVICE_METHOD_SUBSCRIBE);
AzureIoTClient 12:658ca6865de2 2185 if (transport_data->topic_DeviceMethods == NULL)
AzureIoTClient 12:658ca6865de2 2186 {
AzureIoTClient 12:658ca6865de2 2187 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_006 : [Upon failure IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return a non - zero value.]*/
AzureIoTClient 12:658ca6865de2 2188 LogError("Failure: unable constructing device method subscribe topic");
AzureIoTClient 18:ec8e5e97c6a4 2189 result = __FAILURE__;
AzureIoTClient 12:658ca6865de2 2190 }
AzureIoTClient 12:658ca6865de2 2191 else
AzureIoTClient 12:658ca6865de2 2192 {
AzureIoTClient 12:658ca6865de2 2193 /*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 2194 transport_data->topics_ToSubscribe |= SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2195 result = 0;
AzureIoTClient 12:658ca6865de2 2196 }
AzureIoTClient 12:658ca6865de2 2197 }
AzureIoTClient 12:658ca6865de2 2198 else
AzureIoTClient 12:658ca6865de2 2199 {
AzureIoTClient 12:658ca6865de2 2200 /*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 2201 result = 0;
AzureIoTClient 12:658ca6865de2 2202 }
AzureIoTClient 12:658ca6865de2 2203
AzureIoTClient 12:658ca6865de2 2204 if (result == 0)
AzureIoTClient 12:658ca6865de2 2205 {
AzureIoTClient 12:658ca6865de2 2206 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_005 : [IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall schedule the send of the subscription.]*/
AzureIoTClient 12:658ca6865de2 2207 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_007 : [On success IoTHubTransport_MQTT_Common_Subscribe_DeviceMethod shall return 0.]*/
AzureIoTClient 12:658ca6865de2 2208 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 12:658ca6865de2 2209 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2210 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 12:658ca6865de2 2211 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 12:658ca6865de2 2212 {
AzureIoTClient 12:658ca6865de2 2213 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 12:658ca6865de2 2214 }
AzureIoTClient 12:658ca6865de2 2215 }
AzureIoTClient 12:658ca6865de2 2216 }
AzureIoTClient 12:658ca6865de2 2217 return result;
AzureIoTClient 12:658ca6865de2 2218 }
AzureIoTClient 12:658ca6865de2 2219
AzureIoTClient 12:658ca6865de2 2220 void IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 12:658ca6865de2 2221 {
AzureIoTClient 12:658ca6865de2 2222 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2223 /*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 2224 if (transport_data != NULL)
AzureIoTClient 12:658ca6865de2 2225 {
AzureIoTClient 12:658ca6865de2 2226 /*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 2227 if (transport_data->topic_DeviceMethods != NULL)
AzureIoTClient 12:658ca6865de2 2228 {
AzureIoTClient 12:658ca6865de2 2229 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_010 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall construct the DEVICE_METHOD topic string for unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2230 const char* unsubscribe[1];
AzureIoTClient 12:658ca6865de2 2231 unsubscribe[0] = STRING_c_str(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2232
AzureIoTClient 12:658ca6865de2 2233 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_12_011 : [IoTHubTransport_MQTT_Common_Unsubscribe_DeviceMethod shall send the unsubscribe.]*/
AzureIoTClient 12:658ca6865de2 2234 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 12:658ca6865de2 2235 {
AzureIoTClient 12:658ca6865de2 2236 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 12:658ca6865de2 2237 }
AzureIoTClient 12:658ca6865de2 2238
AzureIoTClient 12:658ca6865de2 2239 /*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 2240 STRING_delete(transport_data->topic_DeviceMethods);
AzureIoTClient 12:658ca6865de2 2241 transport_data->topic_DeviceMethods = NULL;
AzureIoTClient 12:658ca6865de2 2242 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_DEVICE_METHOD_TOPIC;
AzureIoTClient 12:658ca6865de2 2243 }
AzureIoTClient 12:658ca6865de2 2244 }
AzureIoTClient 12:658ca6865de2 2245 else
AzureIoTClient 12:658ca6865de2 2246 {
AzureIoTClient 12:658ca6865de2 2247 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 12:658ca6865de2 2248 }
AzureIoTClient 12:658ca6865de2 2249 }
AzureIoTClient 12:658ca6865de2 2250
AzureIoTClient 14:4dc2b011be33 2251 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 2252 {
AzureIoTClient 14:4dc2b011be33 2253 int result;
AzureIoTClient 14:4dc2b011be33 2254 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 14:4dc2b011be33 2255 if (transport_data != NULL)
AzureIoTClient 14:4dc2b011be33 2256 {
AzureIoTClient 14:4dc2b011be33 2257 /* 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 2258 DEVICE_METHOD_INFO* dev_method_info = (DEVICE_METHOD_INFO*)methodId;
AzureIoTClient 14:4dc2b011be33 2259 if (dev_method_info == NULL)
AzureIoTClient 14:4dc2b011be33 2260 {
AzureIoTClient 14:4dc2b011be33 2261 LogError("Failure: DEVICE_METHOD_INFO was NULL");
AzureIoTClient 18:ec8e5e97c6a4 2262 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2263 }
AzureIoTClient 14:4dc2b011be33 2264 else
AzureIoTClient 14:4dc2b011be33 2265 {
AzureIoTClient 14:4dc2b011be33 2266 if (publish_device_method_message(transport_data, status, dev_method_info->request_id, response, respSize) != 0)
AzureIoTClient 14:4dc2b011be33 2267 {
AzureIoTClient 14:4dc2b011be33 2268 /* 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 2269 LogError("Failure: publishing device method response");
AzureIoTClient 18:ec8e5e97c6a4 2270 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2271 }
AzureIoTClient 14:4dc2b011be33 2272 else
AzureIoTClient 14:4dc2b011be33 2273 {
AzureIoTClient 14:4dc2b011be33 2274 result = 0;
AzureIoTClient 14:4dc2b011be33 2275 }
AzureIoTClient 14:4dc2b011be33 2276 STRING_delete(dev_method_info->request_id);
AzureIoTClient 14:4dc2b011be33 2277 free(dev_method_info);
AzureIoTClient 14:4dc2b011be33 2278 }
AzureIoTClient 14:4dc2b011be33 2279 }
AzureIoTClient 14:4dc2b011be33 2280 else
AzureIoTClient 14:4dc2b011be33 2281 {
AzureIoTClient 14:4dc2b011be33 2282 /* 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 2283 result = __FAILURE__;
AzureIoTClient 14:4dc2b011be33 2284 LogError("Failure: invalid IOTHUB_DEVICE_HANDLE parameter specified");
AzureIoTClient 14:4dc2b011be33 2285 }
AzureIoTClient 14:4dc2b011be33 2286 return result;
AzureIoTClient 14:4dc2b011be33 2287 }
AzureIoTClient 14:4dc2b011be33 2288
AzureIoTClient 11:31ebaeb51e1e 2289 int IoTHubTransport_MQTT_Common_Subscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2290 {
AzureIoTClient 11:31ebaeb51e1e 2291 int result;
AzureIoTClient 11:31ebaeb51e1e 2292 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2293 if (transport_data == NULL)
AzureIoTClient 11:31ebaeb51e1e 2294 {
AzureIoTClient 12:658ca6865de2 2295 /* 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 2296 LogError("Invalid handle parameter. NULL.");
AzureIoTClient 18:ec8e5e97c6a4 2297 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2298 }
AzureIoTClient 11:31ebaeb51e1e 2299 else
AzureIoTClient 11:31ebaeb51e1e 2300 {
AzureIoTClient 12:658ca6865de2 2301 /* 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 2302 transport_data->topic_MqttMessage = STRING_construct_sprintf(TOPIC_DEVICE_MSG, STRING_c_str(transport_data->device_id) );
AzureIoTClient 11:31ebaeb51e1e 2303 if (transport_data->topic_MqttMessage == NULL)
AzureIoTClient 11:31ebaeb51e1e 2304 {
AzureIoTClient 11:31ebaeb51e1e 2305 LogError("Failure constructing Message Topic");
AzureIoTClient 18:ec8e5e97c6a4 2306 result = __FAILURE__;
AzureIoTClient 11:31ebaeb51e1e 2307 }
AzureIoTClient 11:31ebaeb51e1e 2308 else
AzureIoTClient 11:31ebaeb51e1e 2309 {
AzureIoTClient 11:31ebaeb51e1e 2310 transport_data->topics_ToSubscribe |= SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 12:658ca6865de2 2311 /* 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 2312 if (transport_data->currPacketState != CONNACK_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2313 transport_data->currPacketState != CONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2314 transport_data->currPacketState != DISCONNECT_TYPE &&
AzureIoTClient 11:31ebaeb51e1e 2315 transport_data->currPacketState != PACKET_TYPE_ERROR)
AzureIoTClient 11:31ebaeb51e1e 2316 {
AzureIoTClient 11:31ebaeb51e1e 2317 transport_data->currPacketState = SUBSCRIBE_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2318 }
AzureIoTClient 11:31ebaeb51e1e 2319 result = 0;
AzureIoTClient 11:31ebaeb51e1e 2320 }
AzureIoTClient 11:31ebaeb51e1e 2321 }
AzureIoTClient 11:31ebaeb51e1e 2322 return result;
AzureIoTClient 11:31ebaeb51e1e 2323 }
AzureIoTClient 11:31ebaeb51e1e 2324
AzureIoTClient 11:31ebaeb51e1e 2325 void IoTHubTransport_MQTT_Common_Unsubscribe(IOTHUB_DEVICE_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2326 {
AzureIoTClient 11:31ebaeb51e1e 2327 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2328 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransport_MQTT_Common_Unsubscribe shall do nothing.] */
AzureIoTClient 11:31ebaeb51e1e 2329 if (transport_data != NULL)
AzureIoTClient 11:31ebaeb51e1e 2330 {
AzureIoTClient 12:658ca6865de2 2331 /* 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 2332 const char* unsubscribe[1];
AzureIoTClient 11:31ebaeb51e1e 2333 unsubscribe[0] = STRING_c_str(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2334 if (mqtt_client_unsubscribe(transport_data->mqttClient, get_next_packet_id(transport_data), unsubscribe, 1) != 0)
AzureIoTClient 11:31ebaeb51e1e 2335 {
AzureIoTClient 11:31ebaeb51e1e 2336 LogError("Failure calling mqtt_client_unsubscribe");
AzureIoTClient 11:31ebaeb51e1e 2337 }
AzureIoTClient 11:31ebaeb51e1e 2338 STRING_delete(transport_data->topic_MqttMessage);
AzureIoTClient 11:31ebaeb51e1e 2339 transport_data->topic_MqttMessage = NULL;
AzureIoTClient 11:31ebaeb51e1e 2340 transport_data->topics_ToSubscribe &= ~SUBSCRIBE_TELEMETRY_TOPIC;
AzureIoTClient 11:31ebaeb51e1e 2341 }
AzureIoTClient 11:31ebaeb51e1e 2342 else
AzureIoTClient 11:31ebaeb51e1e 2343 {
AzureIoTClient 11:31ebaeb51e1e 2344 LogError("Invalid argument to unsubscribe (NULL).");
AzureIoTClient 11:31ebaeb51e1e 2345 }
AzureIoTClient 11:31ebaeb51e1e 2346 }
AzureIoTClient 11:31ebaeb51e1e 2347
AzureIoTClient 12:658ca6865de2 2348 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 2349 {
AzureIoTClient 12:658ca6865de2 2350 IOTHUB_PROCESS_ITEM_RESULT result;
AzureIoTClient 12:658ca6865de2 2351 /* 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 2352 if (handle == NULL || iothub_item == NULL)
AzureIoTClient 12:658ca6865de2 2353 {
AzureIoTClient 12:658ca6865de2 2354 LogError("Invalid handle parameter iothub_item=%p", iothub_item);
AzureIoTClient 12:658ca6865de2 2355 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2356 }
AzureIoTClient 12:658ca6865de2 2357 else
AzureIoTClient 12:658ca6865de2 2358 {
AzureIoTClient 12:658ca6865de2 2359 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 12:658ca6865de2 2360
AzureIoTClient 12:658ca6865de2 2361 if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 12:658ca6865de2 2362 {
AzureIoTClient 12:658ca6865de2 2363 if (item_type == IOTHUB_TYPE_DEVICE_TWIN)
AzureIoTClient 12:658ca6865de2 2364 {
AzureIoTClient 12:658ca6865de2 2365 MQTT_DEVICE_TWIN_ITEM* mqtt_info = (MQTT_DEVICE_TWIN_ITEM*)malloc(sizeof(MQTT_DEVICE_TWIN_ITEM));
AzureIoTClient 12:658ca6865de2 2366 if (mqtt_info == NULL)
AzureIoTClient 12:658ca6865de2 2367 {
AzureIoTClient 12:658ca6865de2 2368 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2369 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2370 }
AzureIoTClient 12:658ca6865de2 2371 else
AzureIoTClient 12:658ca6865de2 2372 {
AzureIoTClient 12:658ca6865de2 2373 /*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 2374 mqtt_info->iothub_type = item_type;
AzureIoTClient 12:658ca6865de2 2375 mqtt_info->iothub_msg_id = iothub_item->device_twin->item_id;
AzureIoTClient 12:658ca6865de2 2376 mqtt_info->retryCount = 0;
AzureIoTClient 12:658ca6865de2 2377
AzureIoTClient 12:658ca6865de2 2378 /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ If successful IoTHubTransport_MQTT_Common_ProcessItem shall add mqtt info structure acknowledgement queue. ] */
AzureIoTClient 12:658ca6865de2 2379 DList_InsertTailList(&transport_data->ack_waiting_queue, &mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2380
AzureIoTClient 12:658ca6865de2 2381 if (publish_device_twin_message(transport_data, iothub_item->device_twin, mqtt_info) != 0)
AzureIoTClient 12:658ca6865de2 2382 {
AzureIoTClient 12:658ca6865de2 2383 DList_RemoveEntryList(&mqtt_info->entry);
AzureIoTClient 12:658ca6865de2 2384
AzureIoTClient 12:658ca6865de2 2385 free(mqtt_info);
AzureIoTClient 12:658ca6865de2 2386 /* Codes_SRS_IOTHUBCLIENT_LL_07_004: [ If any errors are encountered IoTHubTransport_MQTT_Common_ProcessItem shall return IOTHUB_PROCESS_ERROR. ]*/
AzureIoTClient 12:658ca6865de2 2387 result = IOTHUB_PROCESS_ERROR;
AzureIoTClient 12:658ca6865de2 2388 }
AzureIoTClient 12:658ca6865de2 2389 else
AzureIoTClient 12:658ca6865de2 2390 {
AzureIoTClient 12:658ca6865de2 2391 result = IOTHUB_PROCESS_OK;
AzureIoTClient 12:658ca6865de2 2392 }
AzureIoTClient 12:658ca6865de2 2393 }
AzureIoTClient 12:658ca6865de2 2394 }
AzureIoTClient 12:658ca6865de2 2395 else
AzureIoTClient 12:658ca6865de2 2396 {
AzureIoTClient 12:658ca6865de2 2397 /* 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 2398 result = IOTHUB_PROCESS_CONTINUE;
AzureIoTClient 12:658ca6865de2 2399 }
AzureIoTClient 12:658ca6865de2 2400 }
AzureIoTClient 12:658ca6865de2 2401 else
AzureIoTClient 12:658ca6865de2 2402 {
AzureIoTClient 12:658ca6865de2 2403 /* 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 2404 result = IOTHUB_PROCESS_NOT_CONNECTED;
AzureIoTClient 12:658ca6865de2 2405 }
AzureIoTClient 12:658ca6865de2 2406 }
AzureIoTClient 12:658ca6865de2 2407 return result;
AzureIoTClient 12:658ca6865de2 2408 }
AzureIoTClient 12:658ca6865de2 2409
AzureIoTClient 12:658ca6865de2 2410 /* 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 2411 void IoTHubTransport_MQTT_Common_DoWork(TRANSPORT_LL_HANDLE handle, IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
AzureIoTClient 11:31ebaeb51e1e 2412 {
AzureIoTClient 12:658ca6865de2 2413 /* 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 2414 PMQTTTRANSPORT_HANDLE_DATA transport_data = (PMQTTTRANSPORT_HANDLE_DATA)handle;
AzureIoTClient 11:31ebaeb51e1e 2415 if (transport_data != NULL && iotHubClientHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2416 {
AzureIoTClient 11:31ebaeb51e1e 2417 transport_data->llClientHandle = iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2418
AzureIoTClient 11:31ebaeb51e1e 2419 if (InitializeConnection(transport_data) != 0)
AzureIoTClient 11:31ebaeb51e1e 2420 {
AzureIoTClient 11:31ebaeb51e1e 2421 // Don't want to flood the logs with failures here
AzureIoTClient 11:31ebaeb51e1e 2422 }
AzureIoTClient 11:31ebaeb51e1e 2423 else
AzureIoTClient 11:31ebaeb51e1e 2424 {
AzureIoTClient 11:31ebaeb51e1e 2425 if (transport_data->currPacketState == CONNACK_TYPE || transport_data->currPacketState == SUBSCRIBE_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2426 {
AzureIoTClient 11:31ebaeb51e1e 2427 SubscribeToMqttProtocol(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2428 }
AzureIoTClient 11:31ebaeb51e1e 2429 else if (transport_data->currPacketState == SUBACK_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2430 {
AzureIoTClient 12:658ca6865de2 2431 if ((transport_data->topic_NotifyState != NULL || transport_data->topic_GetState != NULL) &&
AzureIoTClient 12:658ca6865de2 2432 !transport_data->device_twin_get_sent)
AzureIoTClient 12:658ca6865de2 2433 {
AzureIoTClient 12:658ca6865de2 2434 /* 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 2435 if (publish_device_twin_get_message(transport_data) == 0)
AzureIoTClient 12:658ca6865de2 2436 {
AzureIoTClient 12:658ca6865de2 2437 transport_data->device_twin_get_sent = true;
AzureIoTClient 12:658ca6865de2 2438 }
AzureIoTClient 12:658ca6865de2 2439 else
AzureIoTClient 12:658ca6865de2 2440 {
AzureIoTClient 12:658ca6865de2 2441 LogError("Failure: sending device twin get property command.");
AzureIoTClient 12:658ca6865de2 2442 }
AzureIoTClient 12:658ca6865de2 2443 }
AzureIoTClient 11:31ebaeb51e1e 2444 // Publish can be called now
AzureIoTClient 11:31ebaeb51e1e 2445 transport_data->currPacketState = PUBLISH_TYPE;
AzureIoTClient 11:31ebaeb51e1e 2446 }
AzureIoTClient 11:31ebaeb51e1e 2447 else if (transport_data->currPacketState == PUBLISH_TYPE)
AzureIoTClient 11:31ebaeb51e1e 2448 {
AzureIoTClient 11:31ebaeb51e1e 2449 PDLIST_ENTRY currentListEntry = transport_data->telemetry_waitingForAck.Flink;
AzureIoTClient 11:31ebaeb51e1e 2450 while (currentListEntry != &transport_data->telemetry_waitingForAck)
AzureIoTClient 11:31ebaeb51e1e 2451 {
AzureIoTClient 11:31ebaeb51e1e 2452 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentListEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2453 DLIST_ENTRY nextListEntry;
AzureIoTClient 11:31ebaeb51e1e 2454 nextListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2455
Azure.IoT.Build 13:606465879c57 2456 tickcounter_ms_t current_ms;
Azure.IoT.Build 13:606465879c57 2457 (void)tickcounter_get_current_ms(transport_data->msgTickCounter, &current_ms);
AzureIoTClient 12:658ca6865de2 2458 /* 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 2459 if (((current_ms - mqttMsgEntry->msgPublishTime) / 1000) > RESEND_TIMEOUT_VALUE_MIN)
AzureIoTClient 11:31ebaeb51e1e 2460 {
AzureIoTClient 12:658ca6865de2 2461 /* 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 2462 if (mqttMsgEntry->retryCount >= MAX_SEND_RECOUNT_LIMIT)
AzureIoTClient 11:31ebaeb51e1e 2463 {
AzureIoTClient 11:31ebaeb51e1e 2464 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2465 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT);
AzureIoTClient 11:31ebaeb51e1e 2466 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2467 }
AzureIoTClient 11:31ebaeb51e1e 2468 else
AzureIoTClient 11:31ebaeb51e1e 2469 {
AzureIoTClient 11:31ebaeb51e1e 2470 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2471 const unsigned char* messagePayload = RetrieveMessagePayload(mqttMsgEntry->iotHubMessageEntry->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2472 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2473 {
AzureIoTClient 11:31ebaeb51e1e 2474 LogError("Failure from creating Message IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2475 }
AzureIoTClient 11:31ebaeb51e1e 2476 else
AzureIoTClient 11:31ebaeb51e1e 2477 {
AzureIoTClient 11:31ebaeb51e1e 2478 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2479 {
AzureIoTClient 11:31ebaeb51e1e 2480 (void)DList_RemoveEntryList(currentListEntry);
AzureIoTClient 11:31ebaeb51e1e 2481 sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2482 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2483 }
AzureIoTClient 11:31ebaeb51e1e 2484 }
AzureIoTClient 11:31ebaeb51e1e 2485 }
AzureIoTClient 11:31ebaeb51e1e 2486 }
AzureIoTClient 11:31ebaeb51e1e 2487 currentListEntry = nextListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2488 }
AzureIoTClient 11:31ebaeb51e1e 2489
AzureIoTClient 11:31ebaeb51e1e 2490 currentListEntry = transport_data->waitingToSend->Flink;
AzureIoTClient 12:658ca6865de2 2491 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2492 while (currentListEntry != transport_data->waitingToSend)
AzureIoTClient 11:31ebaeb51e1e 2493 {
AzureIoTClient 11:31ebaeb51e1e 2494 IOTHUB_MESSAGE_LIST* iothubMsgList = containingRecord(currentListEntry, IOTHUB_MESSAGE_LIST, entry);
AzureIoTClient 11:31ebaeb51e1e 2495 DLIST_ENTRY savedFromCurrentListEntry;
AzureIoTClient 11:31ebaeb51e1e 2496 savedFromCurrentListEntry.Flink = currentListEntry->Flink;
AzureIoTClient 11:31ebaeb51e1e 2497
AzureIoTClient 12:658ca6865de2 2498 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_027: [IoTHubTransport_MQTT_Common_DoWork shall inspect the "waitingToSend" DLIST passed in config structure.] */
AzureIoTClient 11:31ebaeb51e1e 2499 size_t messageLength;
AzureIoTClient 11:31ebaeb51e1e 2500 const unsigned char* messagePayload = RetrieveMessagePayload(iothubMsgList->messageHandle, &messageLength);
AzureIoTClient 11:31ebaeb51e1e 2501 if (messageLength == 0 || messagePayload == NULL)
AzureIoTClient 11:31ebaeb51e1e 2502 {
AzureIoTClient 11:31ebaeb51e1e 2503 LogError("Failure result from IoTHubMessage_GetData");
AzureIoTClient 11:31ebaeb51e1e 2504 }
AzureIoTClient 11:31ebaeb51e1e 2505 else
AzureIoTClient 11:31ebaeb51e1e 2506 {
AzureIoTClient 12:658ca6865de2 2507 /* 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 2508 MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = (MQTT_MESSAGE_DETAILS_LIST*)malloc(sizeof(MQTT_MESSAGE_DETAILS_LIST));
AzureIoTClient 11:31ebaeb51e1e 2509 if (mqttMsgEntry == NULL)
AzureIoTClient 11:31ebaeb51e1e 2510 {
AzureIoTClient 11:31ebaeb51e1e 2511 LogError("Allocation Error: Failure allocating MQTT Message Detail List.");
AzureIoTClient 11:31ebaeb51e1e 2512 }
AzureIoTClient 11:31ebaeb51e1e 2513 else
AzureIoTClient 11:31ebaeb51e1e 2514 {
AzureIoTClient 11:31ebaeb51e1e 2515 mqttMsgEntry->retryCount = 0;
AzureIoTClient 11:31ebaeb51e1e 2516 mqttMsgEntry->iotHubMessageEntry = iothubMsgList;
AzureIoTClient 11:31ebaeb51e1e 2517 mqttMsgEntry->packet_id = get_next_packet_id(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2518 if (publish_mqtt_telemetry_msg(transport_data, mqttMsgEntry, messagePayload, messageLength) != 0)
AzureIoTClient 11:31ebaeb51e1e 2519 {
AzureIoTClient 11:31ebaeb51e1e 2520 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2521 sendMsgComplete(iothubMsgList, transport_data, IOTHUB_CLIENT_CONFIRMATION_ERROR);
AzureIoTClient 11:31ebaeb51e1e 2522 free(mqttMsgEntry);
AzureIoTClient 11:31ebaeb51e1e 2523 }
AzureIoTClient 11:31ebaeb51e1e 2524 else
AzureIoTClient 11:31ebaeb51e1e 2525 {
AzureIoTClient 11:31ebaeb51e1e 2526 (void)(DList_RemoveEntryList(currentListEntry));
AzureIoTClient 11:31ebaeb51e1e 2527 DList_InsertTailList(&(transport_data->telemetry_waitingForAck), &(mqttMsgEntry->entry));
AzureIoTClient 11:31ebaeb51e1e 2528 }
AzureIoTClient 11:31ebaeb51e1e 2529 }
AzureIoTClient 11:31ebaeb51e1e 2530 }
AzureIoTClient 11:31ebaeb51e1e 2531 currentListEntry = savedFromCurrentListEntry.Flink;
AzureIoTClient 11:31ebaeb51e1e 2532 }
AzureIoTClient 11:31ebaeb51e1e 2533 }
AzureIoTClient 20:594780be216d 2534 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_030: [IoTHubTransport_MQTT_Common_DoWork shall call mqtt_client_dowork everytime it is called if it is connected.] */
AzureIoTClient 11:31ebaeb51e1e 2535 mqtt_client_dowork(transport_data->mqttClient);
AzureIoTClient 11:31ebaeb51e1e 2536 }
AzureIoTClient 11:31ebaeb51e1e 2537 }
AzureIoTClient 11:31ebaeb51e1e 2538 }
AzureIoTClient 11:31ebaeb51e1e 2539
AzureIoTClient 11:31ebaeb51e1e 2540 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_GetSendStatus(IOTHUB_DEVICE_HANDLE handle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
AzureIoTClient 11:31ebaeb51e1e 2541 {
AzureIoTClient 11:31ebaeb51e1e 2542 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2543
AzureIoTClient 11:31ebaeb51e1e 2544 if (handle == NULL || iotHubClientStatus == NULL)
AzureIoTClient 11:31ebaeb51e1e 2545 {
AzureIoTClient 12:658ca6865de2 2546 /* 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 2547 LogError("invalid arument.");
AzureIoTClient 11:31ebaeb51e1e 2548 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2549 }
AzureIoTClient 11:31ebaeb51e1e 2550 else
AzureIoTClient 11:31ebaeb51e1e 2551 {
AzureIoTClient 11:31ebaeb51e1e 2552 MQTTTRANSPORT_HANDLE_DATA* handleData = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2553 if (!DList_IsListEmpty(handleData->waitingToSend) || !DList_IsListEmpty(&(handleData->telemetry_waitingForAck)))
AzureIoTClient 11:31ebaeb51e1e 2554 {
AzureIoTClient 12:658ca6865de2 2555 /* 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 2556 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_BUSY;
AzureIoTClient 11:31ebaeb51e1e 2557 }
AzureIoTClient 11:31ebaeb51e1e 2558 else
AzureIoTClient 11:31ebaeb51e1e 2559 {
AzureIoTClient 12:658ca6865de2 2560 /* 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 2561 *iotHubClientStatus = IOTHUB_CLIENT_SEND_STATUS_IDLE;
AzureIoTClient 11:31ebaeb51e1e 2562 }
AzureIoTClient 11:31ebaeb51e1e 2563 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2564 }
AzureIoTClient 11:31ebaeb51e1e 2565 return result;
AzureIoTClient 11:31ebaeb51e1e 2566 }
AzureIoTClient 11:31ebaeb51e1e 2567
AzureIoTClient 11:31ebaeb51e1e 2568 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SetOption(TRANSPORT_LL_HANDLE handle, const char* option, const void* value)
AzureIoTClient 11:31ebaeb51e1e 2569 {
AzureIoTClient 12:658ca6865de2 2570 /* 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 2571 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 11:31ebaeb51e1e 2572 if (
AzureIoTClient 11:31ebaeb51e1e 2573 (handle == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2574 (option == NULL) ||
AzureIoTClient 11:31ebaeb51e1e 2575 (value == NULL)
AzureIoTClient 11:31ebaeb51e1e 2576 )
AzureIoTClient 11:31ebaeb51e1e 2577 {
AzureIoTClient 11:31ebaeb51e1e 2578 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2579 LogError("invalid parameter (NULL) passed to IoTHubTransport_MQTT_Common_SetOption.");
AzureIoTClient 11:31ebaeb51e1e 2580 }
AzureIoTClient 11:31ebaeb51e1e 2581 else
AzureIoTClient 11:31ebaeb51e1e 2582 {
AzureIoTClient 11:31ebaeb51e1e 2583 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 21:167f8fcf6fb1 2584
AzureIoTClient 21:167f8fcf6fb1 2585 IOTHUB_CREDENTIAL_TYPE cred_type = IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module);
AzureIoTClient 21:167f8fcf6fb1 2586
AzureIoTClient 11:31ebaeb51e1e 2587 /* 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 2588 if (strcmp(OPTION_LOG_TRACE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2589 {
AzureIoTClient 11:31ebaeb51e1e 2590 transport_data->log_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2591 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2592 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2593 }
AzureIoTClient 11:31ebaeb51e1e 2594 else if (strcmp("rawlogtrace", option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2595 {
AzureIoTClient 11:31ebaeb51e1e 2596 transport_data->raw_trace = *((bool*)value);
AzureIoTClient 11:31ebaeb51e1e 2597 mqtt_client_set_trace(transport_data->mqttClient, transport_data->log_trace, transport_data->raw_trace);
AzureIoTClient 11:31ebaeb51e1e 2598 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2599 }
AzureIoTClient 11:31ebaeb51e1e 2600 else if (strcmp(OPTION_KEEP_ALIVE, option) == 0)
AzureIoTClient 11:31ebaeb51e1e 2601 {
AzureIoTClient 11:31ebaeb51e1e 2602 /* 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 2603 int* keepAliveOption = (int*)value;
AzureIoTClient 12:658ca6865de2 2604 /* 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 2605 if (*keepAliveOption != transport_data->keepAliveValue)
AzureIoTClient 11:31ebaeb51e1e 2606 {
AzureIoTClient 11:31ebaeb51e1e 2607 transport_data->keepAliveValue = (uint16_t)(*keepAliveOption);
AzureIoTClient 20:594780be216d 2608 if (transport_data->mqttClientStatus != MQTT_CLIENT_STATUS_NOT_CONNECTED)
AzureIoTClient 11:31ebaeb51e1e 2609 {
AzureIoTClient 20:594780be216d 2610 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_038: [If the client is connected when the keepalive is set then IoTHubTransport_MQTT_Common_SetOption shall disconnect and reconnect with the specified keepalive value.] */
AzureIoTClient 11:31ebaeb51e1e 2611 DisconnectFromClient(transport_data);
AzureIoTClient 11:31ebaeb51e1e 2612 }
AzureIoTClient 11:31ebaeb51e1e 2613 }
AzureIoTClient 11:31ebaeb51e1e 2614 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2615 }
AzureIoTClient 11:31ebaeb51e1e 2616 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2617 else if ((strcmp(OPTION_X509_CERT, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
AzureIoTClient 11:31ebaeb51e1e 2618 {
AzureIoTClient 11:31ebaeb51e1e 2619 LogError("x509certificate specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2620 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2621 }
AzureIoTClient 11:31ebaeb51e1e 2622 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_040: [If the option parameter is set to "x509privatekey" then the value shall be a const char of the RSA Private Key to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2623 else if ((strcmp(OPTION_X509_PRIVATE_KEY, option) == 0) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509 && cred_type != IOTHUB_CREDENTIAL_TYPE_UNKNOWN))
AzureIoTClient 11:31ebaeb51e1e 2624 {
AzureIoTClient 11:31ebaeb51e1e 2625 LogError("x509privatekey specified, but authentication method is not x509");
AzureIoTClient 11:31ebaeb51e1e 2626 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2627 }
AzureIoTClient 20:594780be216d 2628 else if (strcmp(OPTION_HTTP_PROXY, option) == 0)
AzureIoTClient 20:594780be216d 2629 {
AzureIoTClient 20:594780be216d 2630 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_001: [ If `option` is `proxy_data`, `value` shall be used as an `HTTP_PROXY_OPTIONS*`. ]*/
AzureIoTClient 20:594780be216d 2631 HTTP_PROXY_OPTIONS* proxy_options = (HTTP_PROXY_OPTIONS*)value;
AzureIoTClient 20:594780be216d 2632
AzureIoTClient 20:594780be216d 2633 if (transport_data->xioTransport != NULL)
AzureIoTClient 20:594780be216d 2634 {
AzureIoTClient 20:594780be216d 2635 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_007: [ If the underlying IO has already been created, then `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
AzureIoTClient 20:594780be216d 2636 LogError("Cannot set proxy option once the underlying IO is created");
AzureIoTClient 20:594780be216d 2637 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2638 }
AzureIoTClient 20:594780be216d 2639 else if (proxy_options->host_address == NULL)
AzureIoTClient 20:594780be216d 2640 {
AzureIoTClient 20:594780be216d 2641 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_003: [ If `host_address` is NULL, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_INVALID_ARG`. ]*/
AzureIoTClient 20:594780be216d 2642 LogError("NULL host_address in proxy options");
AzureIoTClient 20:594780be216d 2643 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2644 }
AzureIoTClient 20:594780be216d 2645 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_006: [ If only one of `username` and `password` is NULL, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_INVALID_ARG`. ]*/
AzureIoTClient 20:594780be216d 2646 else if (((proxy_options->username == NULL) || (proxy_options->password == NULL)) &&
AzureIoTClient 20:594780be216d 2647 (proxy_options->username != proxy_options->password))
AzureIoTClient 20:594780be216d 2648 {
AzureIoTClient 20:594780be216d 2649 LogError("Only one of username and password for proxy settings was NULL");
AzureIoTClient 20:594780be216d 2650 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 20:594780be216d 2651 }
AzureIoTClient 20:594780be216d 2652 else
AzureIoTClient 20:594780be216d 2653 {
AzureIoTClient 20:594780be216d 2654 char* copied_proxy_hostname = NULL;
AzureIoTClient 20:594780be216d 2655 char* copied_proxy_username = NULL;
AzureIoTClient 20:594780be216d 2656 char* copied_proxy_password = NULL;
AzureIoTClient 20:594780be216d 2657
AzureIoTClient 20:594780be216d 2658 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_002: [ The fields `host_address`, `port`, `username` and `password` shall be saved for later used (needed when creating the underlying IO to be used by the transport). ]*/
AzureIoTClient 20:594780be216d 2659 transport_data->http_proxy_port = proxy_options->port;
AzureIoTClient 20:594780be216d 2660 if (mallocAndStrcpy_s(&copied_proxy_hostname, proxy_options->host_address) != 0)
AzureIoTClient 20:594780be216d 2661 {
AzureIoTClient 20:594780be216d 2662 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
AzureIoTClient 20:594780be216d 2663 LogError("Cannot copy HTTP proxy hostname");
AzureIoTClient 20:594780be216d 2664 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2665 }
AzureIoTClient 20:594780be216d 2666 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
AzureIoTClient 20:594780be216d 2667 else if ((proxy_options->username != NULL) && (mallocAndStrcpy_s(&copied_proxy_username, proxy_options->username) != 0))
AzureIoTClient 20:594780be216d 2668 {
AzureIoTClient 20:594780be216d 2669 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
AzureIoTClient 20:594780be216d 2670 free(copied_proxy_hostname);
AzureIoTClient 20:594780be216d 2671 LogError("Cannot copy HTTP proxy username");
AzureIoTClient 20:594780be216d 2672 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2673 }
AzureIoTClient 20:594780be216d 2674 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_005: [ `username` and `password` shall be allowed to be NULL. ]*/
AzureIoTClient 20:594780be216d 2675 else if ((proxy_options->password != NULL) && (mallocAndStrcpy_s(&copied_proxy_password, proxy_options->password) != 0))
AzureIoTClient 20:594780be216d 2676 {
AzureIoTClient 20:594780be216d 2677 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_004: [ If copying `host_address`, `username` or `password` fails, `IoTHubTransport_MQTT_Common_SetOption` shall fail and return `IOTHUB_CLIENT_ERROR`. ]*/
AzureIoTClient 20:594780be216d 2678 if (copied_proxy_username != NULL)
AzureIoTClient 20:594780be216d 2679 {
AzureIoTClient 20:594780be216d 2680 free(copied_proxy_username);
AzureIoTClient 20:594780be216d 2681 }
AzureIoTClient 20:594780be216d 2682 free(copied_proxy_hostname);
AzureIoTClient 20:594780be216d 2683 LogError("Cannot copy HTTP proxy password");
AzureIoTClient 20:594780be216d 2684 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 20:594780be216d 2685 }
AzureIoTClient 20:594780be216d 2686 else
AzureIoTClient 20:594780be216d 2687 {
AzureIoTClient 20:594780be216d 2688 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_009: [ When setting the proxy options succeeds any previously saved proxy options shall be freed. ]*/
AzureIoTClient 20:594780be216d 2689 free_proxy_data(transport_data);
AzureIoTClient 20:594780be216d 2690
AzureIoTClient 20:594780be216d 2691 transport_data->http_proxy_hostname = copied_proxy_hostname;
AzureIoTClient 20:594780be216d 2692 transport_data->http_proxy_username = copied_proxy_username;
AzureIoTClient 20:594780be216d 2693 transport_data->http_proxy_password = copied_proxy_password;
AzureIoTClient 20:594780be216d 2694
AzureIoTClient 20:594780be216d 2695 /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_008: [ If setting the `proxy_data` option suceeds, `IoTHubTransport_MQTT_Common_SetOption` shall return `IOTHUB_CLIENT_OK` ]*/
AzureIoTClient 20:594780be216d 2696 result = IOTHUB_CLIENT_OK;
AzureIoTClient 20:594780be216d 2697 }
AzureIoTClient 20:594780be216d 2698 }
AzureIoTClient 20:594780be216d 2699 }
AzureIoTClient 11:31ebaeb51e1e 2700 else
AzureIoTClient 11:31ebaeb51e1e 2701 {
AzureIoTClient 21:167f8fcf6fb1 2702 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_039: [If the option parameter is set to "x509certificate" then the value shall be a const char of the certificate to be used for x509.] */
AzureIoTClient 21:167f8fcf6fb1 2703 if ( ((strcmp(OPTION_X509_CERT, option) == 0) || (strcmp(OPTION_X509_PRIVATE_KEY, option) == 0)) && (cred_type != IOTHUB_CREDENTIAL_TYPE_X509) )
AzureIoTClient 21:167f8fcf6fb1 2704 {
AzureIoTClient 21:167f8fcf6fb1 2705 IoTHubClient_Auth_Set_x509_Type(transport_data->authorization_module, true);
AzureIoTClient 21:167f8fcf6fb1 2706 }
AzureIoTClient 21:167f8fcf6fb1 2707
AzureIoTClient 12:658ca6865de2 2708 /* 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 2709 if (GetTransportProviderIfNecessary(transport_data) == 0)
AzureIoTClient 11:31ebaeb51e1e 2710 {
AzureIoTClient 11:31ebaeb51e1e 2711 if (xio_setoption(transport_data->xioTransport, option, value) == 0)
AzureIoTClient 11:31ebaeb51e1e 2712 {
AzureIoTClient 11:31ebaeb51e1e 2713 result = IOTHUB_CLIENT_OK;
AzureIoTClient 11:31ebaeb51e1e 2714 }
AzureIoTClient 11:31ebaeb51e1e 2715 else
AzureIoTClient 11:31ebaeb51e1e 2716 {
AzureIoTClient 12:658ca6865de2 2717 /* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_132: [IoTHubTransport_MQTT_Common_SetOption shall return IOTHUB_CLIENT_INVALID_ARG xio_setoption fails] */
AzureIoTClient 11:31ebaeb51e1e 2718 result = IOTHUB_CLIENT_INVALID_ARG;
AzureIoTClient 11:31ebaeb51e1e 2719 }
AzureIoTClient 11:31ebaeb51e1e 2720 }
AzureIoTClient 11:31ebaeb51e1e 2721 else
AzureIoTClient 11:31ebaeb51e1e 2722 {
AzureIoTClient 11:31ebaeb51e1e 2723 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 11:31ebaeb51e1e 2724 }
AzureIoTClient 11:31ebaeb51e1e 2725 }
AzureIoTClient 11:31ebaeb51e1e 2726 }
AzureIoTClient 11:31ebaeb51e1e 2727 return result;
AzureIoTClient 11:31ebaeb51e1e 2728 }
AzureIoTClient 11:31ebaeb51e1e 2729
AzureIoTClient 11:31ebaeb51e1e 2730 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 2731 {
AzureIoTClient 11:31ebaeb51e1e 2732 IOTHUB_DEVICE_HANDLE result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2733 (void)iotHubClientHandle;
AzureIoTClient 11:31ebaeb51e1e 2734
AzureIoTClient 12:658ca6865de2 2735 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_001: [ IoTHubTransport_MQTT_Common_Register shall return NULL if the TRANSPORT_LL_HANDLE is NULL.]
AzureIoTClient 12:658ca6865de2 2736 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if device or waitingToSend are NULL.]
AzureIoTClient 11:31ebaeb51e1e 2737 if ((handle == NULL) || (device == NULL) || (waitingToSend == NULL))
AzureIoTClient 11:31ebaeb51e1e 2738 {
AzureIoTClient 12:658ca6865de2 2739 LogError("IoTHubTransport_MQTT_Common_Register: handle, device or waitingToSend is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2740 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2741 }
AzureIoTClient 11:31ebaeb51e1e 2742 else
AzureIoTClient 11:31ebaeb51e1e 2743 {
AzureIoTClient 11:31ebaeb51e1e 2744 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)handle;
AzureIoTClient 11:31ebaeb51e1e 2745
AzureIoTClient 12:658ca6865de2 2746 // 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 2747 if (device->deviceId == NULL)
AzureIoTClient 11:31ebaeb51e1e 2748 {
AzureIoTClient 12:658ca6865de2 2749 LogError("IoTHubTransport_MQTT_Common_Register: deviceId is NULL.");
AzureIoTClient 11:31ebaeb51e1e 2750 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2751 }
AzureIoTClient 12:658ca6865de2 2752 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_03_002: [ IoTHubTransport_MQTT_Common_Register shall return NULL if both deviceKey and deviceSasToken are provided.]
AzureIoTClient 11:31ebaeb51e1e 2753 else if ((device->deviceKey != NULL) && (device->deviceSasToken != NULL))
AzureIoTClient 11:31ebaeb51e1e 2754 {
AzureIoTClient 12:658ca6865de2 2755 LogError("IoTHubTransport_MQTT_Common_Register: Both deviceKey and deviceSasToken are defined. Only one can be used.");
AzureIoTClient 11:31ebaeb51e1e 2756 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2757 }
AzureIoTClient 11:31ebaeb51e1e 2758 else
AzureIoTClient 11:31ebaeb51e1e 2759 {
AzureIoTClient 12:658ca6865de2 2760 // 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 2761 if (strcmp(STRING_c_str(transport_data->device_id), device->deviceId) != 0)
AzureIoTClient 11:31ebaeb51e1e 2762 {
AzureIoTClient 12:658ca6865de2 2763 LogError("IoTHubTransport_MQTT_Common_Register: deviceId does not match.");
AzureIoTClient 11:31ebaeb51e1e 2764 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2765 }
AzureIoTClient 21:167f8fcf6fb1 2766 else if (IoTHubClient_Auth_Get_Credential_Type(transport_data->authorization_module) == IOTHUB_CREDENTIAL_TYPE_DEVICE_KEY &&
AzureIoTClient 21:167f8fcf6fb1 2767 (strcmp(IoTHubClient_Auth_Get_DeviceKey(transport_data->authorization_module), device->deviceKey) != 0))
AzureIoTClient 11:31ebaeb51e1e 2768 {
AzureIoTClient 12:658ca6865de2 2769 LogError("IoTHubTransport_MQTT_Common_Register: deviceKey does not match.");
AzureIoTClient 11:31ebaeb51e1e 2770 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2771 }
AzureIoTClient 11:31ebaeb51e1e 2772 else
AzureIoTClient 11:31ebaeb51e1e 2773 {
AzureIoTClient 11:31ebaeb51e1e 2774 if (transport_data->isRegistered == true)
AzureIoTClient 11:31ebaeb51e1e 2775 {
AzureIoTClient 11:31ebaeb51e1e 2776 LogError("Transport already has device registered by id: [%s]", device->deviceId);
AzureIoTClient 11:31ebaeb51e1e 2777 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2778 }
AzureIoTClient 11:31ebaeb51e1e 2779 else
AzureIoTClient 11:31ebaeb51e1e 2780 {
AzureIoTClient 11:31ebaeb51e1e 2781 transport_data->isRegistered = true;
AzureIoTClient 12:658ca6865de2 2782 // 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 2783 result = (IOTHUB_DEVICE_HANDLE)handle;
AzureIoTClient 11:31ebaeb51e1e 2784 }
AzureIoTClient 11:31ebaeb51e1e 2785 }
AzureIoTClient 11:31ebaeb51e1e 2786 }
AzureIoTClient 11:31ebaeb51e1e 2787 }
AzureIoTClient 11:31ebaeb51e1e 2788
AzureIoTClient 11:31ebaeb51e1e 2789 return result;
AzureIoTClient 11:31ebaeb51e1e 2790 }
AzureIoTClient 11:31ebaeb51e1e 2791
AzureIoTClient 11:31ebaeb51e1e 2792 void IoTHubTransport_MQTT_Common_Unregister(IOTHUB_DEVICE_HANDLE deviceHandle)
AzureIoTClient 11:31ebaeb51e1e 2793 {
AzureIoTClient 14:4dc2b011be33 2794 // Codes_SRS_IOTHUB_MQTT_TRANSPORT_17_005: [ If deviceHandle is NULL `IoTHubTransport_MQTT_Common_Unregister` shall do nothing. ]
AzureIoTClient 11:31ebaeb51e1e 2795 if (deviceHandle != NULL)
AzureIoTClient 11:31ebaeb51e1e 2796 {
AzureIoTClient 11:31ebaeb51e1e 2797 MQTTTRANSPORT_HANDLE_DATA* transport_data = (MQTTTRANSPORT_HANDLE_DATA*)deviceHandle;
AzureIoTClient 11:31ebaeb51e1e 2798
AzureIoTClient 11:31ebaeb51e1e 2799 transport_data->isRegistered = false;
AzureIoTClient 11:31ebaeb51e1e 2800 }
AzureIoTClient 11:31ebaeb51e1e 2801 }
AzureIoTClient 11:31ebaeb51e1e 2802
AzureIoTClient 11:31ebaeb51e1e 2803 STRING_HANDLE IoTHubTransport_MQTT_Common_GetHostname(TRANSPORT_LL_HANDLE handle)
AzureIoTClient 11:31ebaeb51e1e 2804 {
AzureIoTClient 11:31ebaeb51e1e 2805 STRING_HANDLE result;
AzureIoTClient 12:658ca6865de2 2806 /*Codes_SRS_IOTHUB_MQTT_TRANSPORT_02_001: [ If handle is NULL then IoTHubTransport_MQTT_Common_GetHostname shall fail and return NULL. ]*/
AzureIoTClient 11:31ebaeb51e1e 2807 if (handle == NULL)
AzureIoTClient 11:31ebaeb51e1e 2808 {
AzureIoTClient 11:31ebaeb51e1e 2809 result = NULL;
AzureIoTClient 11:31ebaeb51e1e 2810 }
AzureIoTClient 11:31ebaeb51e1e 2811 else
AzureIoTClient 11:31ebaeb51e1e 2812 {
AzureIoTClient 12:658ca6865de2 2813 /*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 2814 result = ((MQTTTRANSPORT_HANDLE_DATA*)handle)->hostAddress;
AzureIoTClient 11:31ebaeb51e1e 2815 }
AzureIoTClient 11:31ebaeb51e1e 2816 return result;
AzureIoTClient 11:31ebaeb51e1e 2817 }
AzureIoTClient 19:f87dfe76bc70 2818
AzureIoTClient 19:f87dfe76bc70 2819 IOTHUB_CLIENT_RESULT IoTHubTransport_MQTT_Common_SendMessageDisposition(MESSAGE_CALLBACK_INFO* message_data, IOTHUBMESSAGE_DISPOSITION_RESULT disposition)
AzureIoTClient 19:f87dfe76bc70 2820 {
AzureIoTClient 19:f87dfe76bc70 2821 (void)disposition;
AzureIoTClient 19:f87dfe76bc70 2822
AzureIoTClient 19:f87dfe76bc70 2823 IOTHUB_CLIENT_RESULT result;
AzureIoTClient 19:f87dfe76bc70 2824 if (message_data)
AzureIoTClient 19:f87dfe76bc70 2825 {
AzureIoTClient 19:f87dfe76bc70 2826 if (message_data->messageHandle)
AzureIoTClient 19:f87dfe76bc70 2827 {
AzureIoTClient 19:f87dfe76bc70 2828 IoTHubMessage_Destroy(message_data->messageHandle);
AzureIoTClient 19:f87dfe76bc70 2829 result = IOTHUB_CLIENT_OK;
AzureIoTClient 19:f87dfe76bc70 2830 }
AzureIoTClient 19:f87dfe76bc70 2831 else
AzureIoTClient 19:f87dfe76bc70 2832 {
AzureIoTClient 19:f87dfe76bc70 2833 /*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 2834 LogError("message handle is NULL");
AzureIoTClient 19:f87dfe76bc70 2835 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2836 }
AzureIoTClient 19:f87dfe76bc70 2837 free(message_data);
AzureIoTClient 19:f87dfe76bc70 2838 }
AzureIoTClient 19:f87dfe76bc70 2839 else
AzureIoTClient 19:f87dfe76bc70 2840 {
AzureIoTClient 19:f87dfe76bc70 2841 /*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 2842 LogError("message_data is NULL");
AzureIoTClient 19:f87dfe76bc70 2843 result = IOTHUB_CLIENT_ERROR;
AzureIoTClient 19:f87dfe76bc70 2844 }
AzureIoTClient 19:f87dfe76bc70 2845 return result;
AzureIoTClient 19:f87dfe76bc70 2846 }
AzureIoTClient 19:f87dfe76bc70 2847