[388] | 1 | // Copyright (c) Microsoft. All rights reserved.
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| 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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| 3 |
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| 4 | #include <stdlib.h>
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| 5 | #include "azure_c_shared_utility/agenttime.h"
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| 6 | #include "azure_c_shared_utility/const_defines.h"
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| 7 | #include "azure_c_shared_utility/crt_abstractions.h"
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| 8 | #include "azure_c_shared_utility/gballoc.h"
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| 9 | #include "azure_c_shared_utility/optimize_size.h"
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| 10 | #include "azure_c_shared_utility/macro_utils.h"
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| 11 | #include "azure_c_shared_utility/platform.h"
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| 12 | #include "azure_c_shared_utility/strings.h"
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| 13 | #include "azure_c_shared_utility/threadapi.h"
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| 14 | #include "azure_c_shared_utility/tickcounter.h"
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| 15 | #include "azure_c_shared_utility/xlogging.h"
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| 16 | #include "azure_c_shared_utility/macro_utils.h"
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| 17 |
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| 18 | #include "azure_umqtt_c/mqtt_client.h"
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| 19 | #include "azure_umqtt_c/mqtt_codec.h"
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| 20 | #include <inttypes.h>
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| 21 |
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| 22 | #define VARIABLE_HEADER_OFFSET 2
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| 23 | #define RETAIN_FLAG_MASK 0x1
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| 24 | #define QOS_LEAST_ONCE_FLAG_MASK 0x2
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| 25 | #define QOS_EXACTLY_ONCE_FLAG_MASK 0x4
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| 26 | #define DUPLICATE_FLAG_MASK 0x8
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| 27 | #define CONNECT_PACKET_MASK 0xf0
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| 28 | #define TIME_MAX_BUFFER 16
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| 29 | #define DEFAULT_MAX_PING_RESPONSE_TIME 80 // % of time to send pings
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| 30 | #define MAX_CLOSE_RETRIES 20
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| 31 |
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| 32 | static const char* const TRUE_CONST = "true";
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| 33 | static const char* const FALSE_CONST = "false";
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| 34 |
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| 35 | MU_DEFINE_ENUM_STRINGS(QOS_VALUE, QOS_VALUE_VALUES);
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| 36 |
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| 37 | typedef struct MQTT_CLIENT_TAG
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| 38 | {
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| 39 | XIO_HANDLE xioHandle;
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| 40 | MQTTCODEC_HANDLE codec_handle;
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| 41 | CONTROL_PACKET_TYPE packetState;
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| 42 | TICK_COUNTER_HANDLE packetTickCntr;
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| 43 | tickcounter_ms_t packetSendTimeMs;
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| 44 | ON_MQTT_OPERATION_CALLBACK fnOperationCallback;
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| 45 | ON_MQTT_MESSAGE_RECV_CALLBACK fnMessageRecv;
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| 46 | void* ctx;
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| 47 | ON_MQTT_ERROR_CALLBACK fnOnErrorCallBack;
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| 48 | void* errorCBCtx;
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| 49 | ON_MQTT_DISCONNECTED_CALLBACK disconnect_cb;
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| 50 | void* disconnect_ctx;
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| 51 | QOS_VALUE qosValue;
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| 52 | uint16_t keepAliveInterval;
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| 53 | MQTT_CLIENT_OPTIONS mqttOptions;
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| 54 | bool clientConnected;
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| 55 | bool socketConnected;
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| 56 | bool logTrace;
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| 57 | bool rawBytesTrace;
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| 58 | tickcounter_ms_t timeSincePing;
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| 59 | uint16_t maxPingRespTime;
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| 60 | } MQTT_CLIENT;
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| 61 |
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| 62 | static void on_connection_closed(void* context)
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| 63 | {
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| 64 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
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| 65 | if (mqtt_client != NULL)
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| 66 | {
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| 67 | mqtt_client->socketConnected = false;
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| 68 | mqtt_client->clientConnected = false;
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| 69 | if (mqtt_client->disconnect_cb)
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| 70 | {
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| 71 | mqtt_client->disconnect_cb(mqtt_client->disconnect_ctx);
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| 72 | }
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| 73 | }
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| 74 | }
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| 75 |
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| 76 | static void close_connection(MQTT_CLIENT* mqtt_client)
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| 77 | {
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| 78 | if (mqtt_client->socketConnected)
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| 79 | {
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| 80 | (void)xio_close(mqtt_client->xioHandle, on_connection_closed, mqtt_client);
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| 81 | if (mqtt_client->disconnect_cb == NULL)
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| 82 | {
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| 83 | size_t counter = 0;
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| 84 | do
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| 85 | {
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| 86 | xio_dowork(mqtt_client->xioHandle);
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| 87 | counter++;
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| 88 | ThreadAPI_Sleep(2);
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| 89 | } while (mqtt_client->clientConnected && counter < MAX_CLOSE_RETRIES);
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| 90 | }
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| 91 | // Clear the handle because we don't use it anymore
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| 92 | mqtt_client->xioHandle = NULL;
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| 93 | }
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| 94 | else
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| 95 | {
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| 96 | if (mqtt_client->disconnect_cb)
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| 97 | {
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| 98 | mqtt_client->disconnect_cb(mqtt_client->disconnect_ctx);
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| 99 | }
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| 100 | }
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| 101 | mqtt_client->xioHandle = NULL;
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| 102 | }
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| 103 |
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| 104 | static void set_error_callback(MQTT_CLIENT* mqtt_client, MQTT_CLIENT_EVENT_ERROR error_type)
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| 105 | {
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| 106 | if (mqtt_client->fnOnErrorCallBack)
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| 107 | {
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| 108 | mqtt_client->fnOnErrorCallBack(mqtt_client, error_type, mqtt_client->errorCBCtx);
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| 109 | }
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| 110 | close_connection(mqtt_client);
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| 111 | }
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| 112 |
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| 113 | static STRING_HANDLE construct_trace_log_handle(MQTT_CLIENT* mqtt_client)
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| 114 | {
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| 115 | STRING_HANDLE trace_log;
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| 116 | if (mqtt_client->logTrace)
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| 117 | {
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| 118 | trace_log = STRING_new();
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| 119 | }
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| 120 | else
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| 121 | {
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| 122 | trace_log = NULL;
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| 123 | }
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| 124 | return trace_log;
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| 125 | }
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| 126 |
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| 127 | static uint16_t byteutil_read_uint16(uint8_t** buffer, size_t byteLen)
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| 128 | {
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| 129 | uint16_t result = 0;
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| 130 | if (buffer != NULL && *buffer != NULL && byteLen >= 2)
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| 131 | {
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| 132 | result = 256 * (**buffer) + (*(*buffer + 1));
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| 133 | *buffer += 2; // Move the ptr
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| 134 | }
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| 135 | else
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| 136 | {
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| 137 | LogError("byteutil_read_uint16 == NULL or less than 2");
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| 138 | }
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| 139 | return result;
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| 140 | }
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| 141 |
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| 142 | static char* byteutil_readUTF(uint8_t** buffer, size_t* byteLen)
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| 143 | {
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| 144 | char* result = NULL;
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| 145 |
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| 146 | const uint8_t* bufferInitial = *buffer;
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| 147 | // Get the length of the string
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| 148 | uint16_t stringLen = byteutil_read_uint16(buffer, *byteLen);
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| 149 | // Verify that byteutil_read_uint16 succeeded (by stringLen>0) and that we're
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| 150 | // not being asked to read a string longer than buffer passed in.
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| 151 | if ((stringLen > 0) && ((size_t)(stringLen + (*buffer - bufferInitial)) <= *byteLen))
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| 152 | {
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| 153 | result = (char*)malloc(stringLen + 1);
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| 154 | if (result != NULL)
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| 155 | {
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| 156 | (void)memcpy(result, *buffer, stringLen);
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| 157 | result[stringLen] = '\0';
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| 158 | *buffer += stringLen;
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| 159 | *byteLen = stringLen;
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| 160 | }
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| 161 | }
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| 162 | else
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| 163 | {
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| 164 | LogError("String passed not a valid UTF.");
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| 165 | }
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| 166 |
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| 167 | return result;
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| 168 | }
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| 169 |
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| 170 | static uint8_t byteutil_readByte(uint8_t** buffer)
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| 171 | {
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| 172 | uint8_t result = 0;
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| 173 | if (buffer != NULL)
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| 174 | {
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| 175 | result = **buffer;
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| 176 | (*buffer)++;
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| 177 | }
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| 178 | else
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| 179 | {
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| 180 | LogError("readByte buffer == NULL.");
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| 181 | }
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| 182 | return result;
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| 183 | }
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| 184 |
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| 185 | static void sendComplete(void* context, IO_SEND_RESULT send_result)
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| 186 | {
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| 187 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
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| 188 | if (mqtt_client != NULL)
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| 189 | {
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| 190 | if (send_result == IO_SEND_OK)
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| 191 | {
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| 192 | if (mqtt_client->packetState == DISCONNECT_TYPE)
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| 193 | {
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| 194 | /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT the the msgInfo value shall be NULL.]*/
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| 195 | if (mqtt_client->fnOperationCallback != NULL)
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| 196 | {
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| 197 | mqtt_client->fnOperationCallback(mqtt_client, MQTT_CLIENT_ON_DISCONNECT, NULL, mqtt_client->ctx);
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| 198 | }
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| 199 | // close the xio
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| 200 | close_connection(mqtt_client);
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| 201 | }
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| 202 | }
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| 203 | else if (send_result == IO_SEND_ERROR)
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| 204 | {
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| 205 | LogError("MQTT Send Complete Failure send_result: %d", (int)send_result);
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| 206 | set_error_callback(mqtt_client, MQTT_CLIENT_COMMUNICATION_ERROR);
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| 207 | }
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| 208 | }
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| 209 | else
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| 210 | {
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| 211 | LogError("MQTT Send Complete Failure with NULL mqtt_client");
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| 212 | }
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| 213 | }
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| 214 |
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| 215 | #ifndef NO_LOGGING
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| 216 | static void getLogTime(char* timeResult, size_t len)
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| 217 | {
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| 218 | if (timeResult != NULL)
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| 219 | {
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| 220 | time_t agent_time = get_time(NULL);
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| 221 | if (agent_time == (time_t)-1)
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| 222 | {
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| 223 | timeResult[0] = '\0';
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| 224 | }
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| 225 | else
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| 226 | {
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| 227 | struct tm* tmInfo = localtime(&agent_time);
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| 228 | if (tmInfo == NULL)
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| 229 | {
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| 230 | timeResult[0] = '\0';
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| 231 | }
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| 232 | else
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| 233 | {
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| 234 | if (strftime(timeResult, len, "%H:%M:%S", tmInfo) == 0)
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| 235 | {
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| 236 | timeResult[0] = '\0';
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| 237 | }
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| 238 | }
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| 239 | }
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | #ifdef ENABLE_RAW_TRACE
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| 244 | static const char* retrievePacketType(CONTROL_PACKET_TYPE packet)
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| 245 | {
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| 246 | switch (packet&CONNECT_PACKET_MASK)
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| 247 | {
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| 248 | case CONNECT_TYPE: return "CONNECT";
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| 249 | case CONNACK_TYPE: return "CONNACK";
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| 250 | case PUBLISH_TYPE: return "PUBLISH";
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| 251 | case PUBACK_TYPE: return "PUBACK";
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| 252 | case PUBREC_TYPE: return "PUBREC";
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| 253 | case PUBREL_TYPE: return "PUBREL";
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| 254 | case SUBSCRIBE_TYPE: return "SUBSCRIBE";
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| 255 | case SUBACK_TYPE: return "SUBACK";
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| 256 | case UNSUBSCRIBE_TYPE: return "UNSUBSCRIBE";
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| 257 | case UNSUBACK_TYPE: return "UNSUBACK";
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| 258 | case PINGREQ_TYPE: return "PINGREQ";
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| 259 | case PINGRESP_TYPE: return "PINGRESP";
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| 260 | case DISCONNECT_TYPE: return "DISCONNECT";
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| 261 | default:
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| 262 | case PACKET_TYPE_ERROR:
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| 263 | case UNKNOWN_TYPE:
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| 264 | return "UNKNOWN";
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| 265 | }
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| 266 | }
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| 267 |
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| 268 | static void logOutgoingRawTrace(MQTT_CLIENT* mqtt_client, const uint8_t* data, size_t length)
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| 269 | {
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| 270 | if (mqtt_client != NULL && data != NULL && length > 0 && mqtt_client->rawBytesTrace)
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| 271 | {
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| 272 | char tmBuffer[TIME_MAX_BUFFER];
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| 273 | getLogTime(tmBuffer, TIME_MAX_BUFFER);
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| 274 |
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| 275 | LOG(AZ_LOG_TRACE, 0, "-> %s %s: ", tmBuffer, retrievePacketType((unsigned char)data[0]));
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| 276 | size_t index = 0;
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| 277 | for (index = 0; index < length; index++)
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| 278 | {
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| 279 | LOG(AZ_LOG_TRACE, 0, "0x%02x ", data[index]);
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| 280 | }
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| 281 | LOG(AZ_LOG_TRACE, LOG_LINE, " ");
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| 282 | }
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| 283 | }
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| 284 |
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| 285 | static void logIncomingRawTrace(MQTT_CLIENT* mqtt_client, CONTROL_PACKET_TYPE packet, uint8_t flags, const uint8_t* data, size_t length)
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| 286 | {
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| 287 | if (mqtt_client != NULL && mqtt_client->rawBytesTrace)
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| 288 | {
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| 289 | if (data != NULL && length > 0)
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| 290 | {
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| 291 | char tmBuffer[TIME_MAX_BUFFER];
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| 292 | getLogTime(tmBuffer, TIME_MAX_BUFFER);
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| 293 |
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| 294 | LOG(AZ_LOG_TRACE, 0, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((CONTROL_PACKET_TYPE)packet), (unsigned int)(packet | flags), (unsigned int)length);
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| 295 | size_t index = 0;
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| 296 | for (index = 0; index < length; index++)
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| 297 | {
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| 298 | LOG(AZ_LOG_TRACE, 0, "0x%02x ", data[index]);
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| 299 | }
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| 300 | LOG(AZ_LOG_TRACE, LOG_LINE, " ");
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| 301 | }
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| 302 | else if (packet == PINGRESP_TYPE)
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| 303 | {
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| 304 | char tmBuffer[TIME_MAX_BUFFER];
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| 305 | getLogTime(tmBuffer, TIME_MAX_BUFFER);
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| 306 | LOG(AZ_LOG_TRACE, LOG_LINE, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((CONTROL_PACKET_TYPE)packet), (unsigned int)(packet | flags), (unsigned int)length);
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| 307 | }
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| 308 | }
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| 309 | }
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| 310 | #endif // ENABLE_RAW_TRACE
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| 311 |
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| 312 | static void log_outgoing_trace(MQTT_CLIENT* mqtt_client, STRING_HANDLE trace_log)
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| 313 | {
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| 314 | if (mqtt_client != NULL && mqtt_client->logTrace && trace_log != NULL)
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| 315 | {
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| 316 | char tmBuffer[TIME_MAX_BUFFER];
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| 317 | getLogTime(tmBuffer, TIME_MAX_BUFFER);
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| 318 | LOG(AZ_LOG_TRACE, LOG_LINE, "-> %s %s", tmBuffer, STRING_c_str(trace_log));
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| 319 | }
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| 320 | }
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| 321 |
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| 322 | static void log_incoming_trace(MQTT_CLIENT* mqtt_client, STRING_HANDLE trace_log)
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| 323 | {
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| 324 | if (mqtt_client != NULL && mqtt_client->logTrace && trace_log != NULL)
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| 325 | {
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| 326 | char tmBuffer[TIME_MAX_BUFFER];
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| 327 | getLogTime(tmBuffer, TIME_MAX_BUFFER);
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| 328 | LOG(AZ_LOG_TRACE, LOG_LINE, "<- %s %s", tmBuffer, STRING_c_str(trace_log) );
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| 329 | }
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| 330 | }
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| 331 | #else // NO_LOGGING
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| 332 | static void logOutgoingRawTrace(MQTT_CLIENT* mqtt_client, const uint8_t* data, size_t length)
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| 333 | {
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| 334 | AZURE_UNREFERENCED_PARAMETER(mqtt_client);
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| 335 | AZURE_UNREFERENCED_PARAMETER(data);
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| 336 | AZURE_UNREFERENCED_PARAMETER(length);
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| 337 | }
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| 338 |
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| 339 | static void log_outgoing_trace(MQTT_CLIENT* mqtt_client, STRING_HANDLE trace_log)
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| 340 | {
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| 341 | AZURE_UNREFERENCED_PARAMETER(mqtt_client);
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| 342 | AZURE_UNREFERENCED_PARAMETER(trace_log);
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| 343 | }
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| 344 |
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| 345 | static void log_incoming_trace(MQTT_CLIENT* mqtt_client, STRING_HANDLE trace_log)
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| 346 | {
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| 347 | AZURE_UNREFERENCED_PARAMETER(mqtt_client);
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| 348 | AZURE_UNREFERENCED_PARAMETER(trace_log);
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| 349 | }
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| 350 |
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| 351 | static void logIncomingRawTrace(MQTT_CLIENT* mqtt_client, CONTROL_PACKET_TYPE packet, uint8_t flags, const uint8_t* data, size_t length)
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| 352 | {
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| 353 | AZURE_UNREFERENCED_PARAMETER(mqtt_client);
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| 354 | AZURE_UNREFERENCED_PARAMETER(packet);
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| 355 | AZURE_UNREFERENCED_PARAMETER(flags);
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| 356 | AZURE_UNREFERENCED_PARAMETER(data);
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| 357 | AZURE_UNREFERENCED_PARAMETER(length);
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| 358 | }
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| 359 | #endif // NO_LOGGING
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| 360 |
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| 361 | static int sendPacketItem(MQTT_CLIENT* mqtt_client, const unsigned char* data, size_t length)
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| 362 | {
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| 363 | int result;
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| 364 |
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| 365 | if (tickcounter_get_current_ms(mqtt_client->packetTickCntr, &mqtt_client->packetSendTimeMs) != 0)
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| 366 | {
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| 367 | LogError("Failure getting current ms tickcounter");
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| 368 | result = MU_FAILURE;
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| 369 | }
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| 370 | else
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| 371 | {
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| 372 | result = xio_send(mqtt_client->xioHandle, (const void*)data, length, sendComplete, mqtt_client);
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| 373 | if (result != 0)
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| 374 | {
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| 375 | LogError("%d: Failure sending control packet data", result);
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| 376 | result = MU_FAILURE;
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| 377 | }
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| 378 | else
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| 379 | {
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| 380 | #ifdef ENABLE_RAW_TRACE
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| 381 | logOutgoingRawTrace(mqtt_client, (const uint8_t*)data, length);
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| 382 | #endif
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| 383 | }
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| 384 | }
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| 385 | return result;
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| 386 | }
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| 387 |
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| 388 | static void onOpenComplete(void* context, IO_OPEN_RESULT open_result)
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| 389 | {
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| 390 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
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| 391 | if (mqtt_client != NULL)
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| 392 | {
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| 393 | if (open_result == IO_OPEN_OK && !mqtt_client->socketConnected)
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| 394 | {
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| 395 | mqtt_client->packetState = CONNECT_TYPE;
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| 396 | mqtt_client->socketConnected = true;
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| 397 |
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| 398 | STRING_HANDLE trace_log = construct_trace_log_handle(mqtt_client);
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| 399 |
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| 400 | // Send the Connect packet
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| 401 | BUFFER_HANDLE connPacket = mqtt_codec_connect(&mqtt_client->mqttOptions, trace_log);
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| 402 | if (connPacket == NULL)
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| 403 | {
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| 404 | LogError("Error: mqtt_codec_connect failed");
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| 405 | }
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| 406 | else
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| 407 | {
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| 408 | size_t size = BUFFER_length(connPacket);
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| 409 | /*Codes_SRS_MQTT_CLIENT_07_009: [On success mqtt_client_connect shall send the MQTT CONNECT to the endpoint.]*/
|
---|
| 410 | if (sendPacketItem(mqtt_client, BUFFER_u_char(connPacket), size) != 0)
|
---|
| 411 | {
|
---|
| 412 | LogError("Error: mqtt_codec_connect failed");
|
---|
| 413 | }
|
---|
| 414 | else
|
---|
| 415 | {
|
---|
| 416 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 417 | }
|
---|
| 418 | BUFFER_delete(connPacket);
|
---|
| 419 | }
|
---|
| 420 | if (trace_log != NULL)
|
---|
| 421 | {
|
---|
| 422 | STRING_delete(trace_log);
|
---|
| 423 | }
|
---|
| 424 | }
|
---|
| 425 | else
|
---|
| 426 | {
|
---|
| 427 | if (mqtt_client->socketConnected == false && mqtt_client->fnOnErrorCallBack)
|
---|
| 428 | {
|
---|
| 429 | mqtt_client->fnOnErrorCallBack(mqtt_client, MQTT_CLIENT_CONNECTION_ERROR, mqtt_client->errorCBCtx);
|
---|
| 430 | }
|
---|
| 431 | close_connection(mqtt_client);
|
---|
| 432 | }
|
---|
| 433 | }
|
---|
| 434 | else
|
---|
| 435 | {
|
---|
| 436 | LogError("Error: mqtt_client is NULL");
|
---|
| 437 | }
|
---|
| 438 | }
|
---|
| 439 |
|
---|
| 440 | static void onBytesReceived(void* context, const unsigned char* buffer, size_t size)
|
---|
| 441 | {
|
---|
| 442 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
|
---|
| 443 | if (mqtt_client != NULL)
|
---|
| 444 | {
|
---|
| 445 | if (mqtt_codec_bytesReceived(mqtt_client->codec_handle, buffer, size) != 0)
|
---|
| 446 | {
|
---|
| 447 | set_error_callback(mqtt_client, MQTT_CLIENT_PARSE_ERROR);
|
---|
| 448 | }
|
---|
| 449 | }
|
---|
| 450 | else
|
---|
| 451 | {
|
---|
| 452 | LogError("Error: mqtt_client is NULL");
|
---|
| 453 | }
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 | static void onIoError(void* context)
|
---|
| 457 | {
|
---|
| 458 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
|
---|
| 459 | if (mqtt_client != NULL && mqtt_client->fnOperationCallback)
|
---|
| 460 | {
|
---|
| 461 | /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT the the msgInfo value shall be NULL.]*/
|
---|
| 462 | /* Codes_SRS_MQTT_CLIENT_07_036: [ If an error is encountered by the ioHandle the mqtt_client shall call xio_close. ] */
|
---|
| 463 | set_error_callback(mqtt_client, MQTT_CLIENT_CONNECTION_ERROR);
|
---|
| 464 | }
|
---|
| 465 | else
|
---|
| 466 | {
|
---|
| 467 | LogError("Error invalid parameter: mqtt_client: %p", mqtt_client);
|
---|
| 468 | }
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 | static void clear_mqtt_options(MQTT_CLIENT* mqtt_client)
|
---|
| 472 | {
|
---|
| 473 | if (mqtt_client->mqttOptions.clientId != NULL)
|
---|
| 474 | {
|
---|
| 475 | free(mqtt_client->mqttOptions.clientId);
|
---|
| 476 | mqtt_client->mqttOptions.clientId = NULL;
|
---|
| 477 | }
|
---|
| 478 |
|
---|
| 479 | if (mqtt_client->mqttOptions.willTopic != NULL)
|
---|
| 480 | {
|
---|
| 481 | free(mqtt_client->mqttOptions.willTopic);
|
---|
| 482 | mqtt_client->mqttOptions.willTopic = NULL;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | if (mqtt_client->mqttOptions.willMessage != NULL)
|
---|
| 486 | {
|
---|
| 487 | free(mqtt_client->mqttOptions.willMessage);
|
---|
| 488 | mqtt_client->mqttOptions.willMessage = NULL;
|
---|
| 489 | }
|
---|
| 490 |
|
---|
| 491 | if (mqtt_client->mqttOptions.username != NULL)
|
---|
| 492 | {
|
---|
| 493 | free(mqtt_client->mqttOptions.username);
|
---|
| 494 | mqtt_client->mqttOptions.username = NULL;
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | if (mqtt_client->mqttOptions.password != NULL)
|
---|
| 498 | {
|
---|
| 499 | free(mqtt_client->mqttOptions.password);
|
---|
| 500 | mqtt_client->mqttOptions.password = NULL;
|
---|
| 501 | }
|
---|
| 502 | }
|
---|
| 503 |
|
---|
| 504 | static int cloneMqttOptions(MQTT_CLIENT* mqtt_client, const MQTT_CLIENT_OPTIONS* mqttOptions)
|
---|
| 505 | {
|
---|
| 506 | int result = 0;
|
---|
| 507 | char* temp_option;
|
---|
| 508 |
|
---|
| 509 | if (mqttOptions->clientId != NULL)
|
---|
| 510 | {
|
---|
| 511 | if (mallocAndStrcpy_s(&temp_option, mqttOptions->clientId) != 0)
|
---|
| 512 | {
|
---|
| 513 | result = MU_FAILURE;
|
---|
| 514 | LogError("mallocAndStrcpy_s clientId");
|
---|
| 515 | }
|
---|
| 516 | else
|
---|
| 517 | {
|
---|
| 518 | if (mqtt_client->mqttOptions.clientId != NULL)
|
---|
| 519 | {
|
---|
| 520 | free(mqtt_client->mqttOptions.clientId);
|
---|
| 521 | }
|
---|
| 522 | mqtt_client->mqttOptions.clientId = temp_option;
|
---|
| 523 | }
|
---|
| 524 | }
|
---|
| 525 | if (result == 0 && mqttOptions->willTopic != NULL)
|
---|
| 526 | {
|
---|
| 527 | temp_option = NULL;
|
---|
| 528 | if (mallocAndStrcpy_s(&temp_option, mqttOptions->willTopic) != 0)
|
---|
| 529 | {
|
---|
| 530 | result = MU_FAILURE;
|
---|
| 531 | LogError("mallocAndStrcpy_s willTopic");
|
---|
| 532 | }
|
---|
| 533 | else
|
---|
| 534 | {
|
---|
| 535 | if (mqtt_client->mqttOptions.willTopic != NULL)
|
---|
| 536 | {
|
---|
| 537 | free(mqtt_client->mqttOptions.willTopic);
|
---|
| 538 | }
|
---|
| 539 | mqtt_client->mqttOptions.willTopic = temp_option;
|
---|
| 540 | }
|
---|
| 541 | }
|
---|
| 542 | if (result == 0 && mqttOptions->willMessage != NULL)
|
---|
| 543 | {
|
---|
| 544 | temp_option = NULL;
|
---|
| 545 | if (mallocAndStrcpy_s(&temp_option, mqttOptions->willMessage) != 0)
|
---|
| 546 | {
|
---|
| 547 | LogError("mallocAndStrcpy_s willMessage");
|
---|
| 548 | result = MU_FAILURE;
|
---|
| 549 | }
|
---|
| 550 | else
|
---|
| 551 | {
|
---|
| 552 | if (mqtt_client->mqttOptions.willMessage != NULL)
|
---|
| 553 | {
|
---|
| 554 | free(mqtt_client->mqttOptions.willMessage);
|
---|
| 555 | }
|
---|
| 556 | mqtt_client->mqttOptions.willMessage = temp_option;
|
---|
| 557 | }
|
---|
| 558 | }
|
---|
| 559 | if (result == 0 && mqttOptions->username != NULL)
|
---|
| 560 | {
|
---|
| 561 | temp_option = NULL;
|
---|
| 562 | if (mallocAndStrcpy_s(&temp_option, mqttOptions->username) != 0)
|
---|
| 563 | {
|
---|
| 564 | LogError("mallocAndStrcpy_s username");
|
---|
| 565 | result = MU_FAILURE;
|
---|
| 566 | }
|
---|
| 567 | else
|
---|
| 568 | {
|
---|
| 569 | if (mqtt_client->mqttOptions.username != NULL)
|
---|
| 570 | {
|
---|
| 571 | free(mqtt_client->mqttOptions.username);
|
---|
| 572 | }
|
---|
| 573 | mqtt_client->mqttOptions.username = temp_option;
|
---|
| 574 | }
|
---|
| 575 | }
|
---|
| 576 | if (result == 0 && mqttOptions->password != NULL)
|
---|
| 577 | {
|
---|
| 578 | temp_option = NULL;
|
---|
| 579 | if (mallocAndStrcpy_s(&temp_option, mqttOptions->password) != 0)
|
---|
| 580 | {
|
---|
| 581 | LogError("mallocAndStrcpy_s password");
|
---|
| 582 | result = MU_FAILURE;
|
---|
| 583 | }
|
---|
| 584 | else
|
---|
| 585 | {
|
---|
| 586 | if (mqtt_client->mqttOptions.password != NULL)
|
---|
| 587 | {
|
---|
| 588 | free(mqtt_client->mqttOptions.password);
|
---|
| 589 | }
|
---|
| 590 | mqtt_client->mqttOptions.password = temp_option;
|
---|
| 591 | }
|
---|
| 592 | }
|
---|
| 593 | if (result == 0)
|
---|
| 594 | {
|
---|
| 595 | mqtt_client->mqttOptions.keepAliveInterval = mqttOptions->keepAliveInterval;
|
---|
| 596 | mqtt_client->mqttOptions.messageRetain = mqttOptions->messageRetain;
|
---|
| 597 | mqtt_client->mqttOptions.useCleanSession = mqttOptions->useCleanSession;
|
---|
| 598 | mqtt_client->mqttOptions.qualityOfServiceValue = mqttOptions->qualityOfServiceValue;
|
---|
| 599 | }
|
---|
| 600 | else
|
---|
| 601 | {
|
---|
| 602 | clear_mqtt_options(mqtt_client);
|
---|
| 603 | }
|
---|
| 604 | return result;
|
---|
| 605 | }
|
---|
| 606 |
|
---|
| 607 | static void ProcessPublishMessage(MQTT_CLIENT* mqtt_client, uint8_t* initialPos, size_t packetLength, int flags)
|
---|
| 608 | {
|
---|
| 609 | bool isDuplicateMsg = (flags & DUPLICATE_FLAG_MASK) ? true : false;
|
---|
| 610 | bool isRetainMsg = (flags & RETAIN_FLAG_MASK) ? true : false;
|
---|
| 611 | QOS_VALUE qosValue = (flags == 0) ? DELIVER_AT_MOST_ONCE : (flags & QOS_LEAST_ONCE_FLAG_MASK) ? DELIVER_AT_LEAST_ONCE : DELIVER_EXACTLY_ONCE;
|
---|
| 612 |
|
---|
| 613 | uint8_t* iterator = initialPos;
|
---|
| 614 | size_t numberOfBytesToBeRead = packetLength;
|
---|
| 615 | size_t lengthOfTopicName = numberOfBytesToBeRead;
|
---|
| 616 | char* topicName = byteutil_readUTF(&iterator, &lengthOfTopicName);
|
---|
| 617 | if (topicName == NULL)
|
---|
| 618 | {
|
---|
| 619 | LogError("Publish MSG: failure reading topic name");
|
---|
| 620 | set_error_callback(mqtt_client, MQTT_CLIENT_PARSE_ERROR);
|
---|
| 621 | }
|
---|
| 622 | else
|
---|
| 623 | {
|
---|
| 624 | STRING_HANDLE trace_log = NULL;
|
---|
| 625 |
|
---|
| 626 | #ifndef NO_LOGGING
|
---|
| 627 | if (mqtt_client->logTrace)
|
---|
| 628 | {
|
---|
| 629 | trace_log = STRING_construct_sprintf("PUBLISH | IS_DUP: %s | RETAIN: %d | QOS: %s | TOPIC_NAME: %s", isDuplicateMsg ? TRUE_CONST : FALSE_CONST,
|
---|
| 630 | isRetainMsg ? 1 : 0, MU_ENUM_TO_STRING(QOS_VALUE, qosValue), topicName);
|
---|
| 631 | }
|
---|
| 632 | #endif
|
---|
| 633 | uint16_t packetId = 0;
|
---|
| 634 | numberOfBytesToBeRead = packetLength - (iterator - initialPos);
|
---|
| 635 | if (qosValue != DELIVER_AT_MOST_ONCE)
|
---|
| 636 | {
|
---|
| 637 | packetId = byteutil_read_uint16(&iterator, numberOfBytesToBeRead);
|
---|
| 638 | #ifndef NO_LOGGING
|
---|
| 639 | if (mqtt_client->logTrace)
|
---|
| 640 | {
|
---|
| 641 | STRING_sprintf(trace_log, " | PACKET_ID: %"PRIu16, packetId);
|
---|
| 642 | }
|
---|
| 643 | #endif
|
---|
| 644 | }
|
---|
| 645 | if ((qosValue != DELIVER_AT_MOST_ONCE) && (packetId == 0))
|
---|
| 646 | {
|
---|
| 647 | LogError("Publish MSG: packetId=0, invalid");
|
---|
| 648 | set_error_callback(mqtt_client, MQTT_CLIENT_PARSE_ERROR);
|
---|
| 649 | }
|
---|
| 650 | else
|
---|
| 651 | {
|
---|
| 652 | numberOfBytesToBeRead = packetLength - (iterator - initialPos);
|
---|
| 653 |
|
---|
| 654 | MQTT_MESSAGE_HANDLE msgHandle = mqttmessage_create_in_place(packetId, topicName, qosValue, iterator, numberOfBytesToBeRead);
|
---|
| 655 | if (msgHandle == NULL)
|
---|
| 656 | {
|
---|
| 657 | LogError("failure in mqttmessage_create");
|
---|
| 658 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 659 | }
|
---|
| 660 | else if (mqttmessage_setIsDuplicateMsg(msgHandle, isDuplicateMsg) != 0 ||
|
---|
| 661 | mqttmessage_setIsRetained(msgHandle, isRetainMsg) != 0)
|
---|
| 662 | {
|
---|
| 663 | LogError("failure setting mqtt message property");
|
---|
| 664 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 665 | }
|
---|
| 666 | else
|
---|
| 667 | {
|
---|
| 668 | #ifndef NO_LOGGING
|
---|
| 669 | if (mqtt_client->logTrace)
|
---|
| 670 | {
|
---|
| 671 | STRING_sprintf(trace_log, " | PAYLOAD_LEN: %lu", (unsigned long)numberOfBytesToBeRead);
|
---|
| 672 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 673 | }
|
---|
| 674 | #endif
|
---|
| 675 | mqtt_client->fnMessageRecv(msgHandle, mqtt_client->ctx);
|
---|
| 676 |
|
---|
| 677 | BUFFER_HANDLE pubRel = NULL;
|
---|
| 678 | if (qosValue == DELIVER_EXACTLY_ONCE)
|
---|
| 679 | {
|
---|
| 680 | pubRel = mqtt_codec_publishReceived(packetId);
|
---|
| 681 | if (pubRel == NULL)
|
---|
| 682 | {
|
---|
| 683 | LogError("Failed to allocate publish receive message.");
|
---|
| 684 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 685 | }
|
---|
| 686 | }
|
---|
| 687 | else if (qosValue == DELIVER_AT_LEAST_ONCE)
|
---|
| 688 | {
|
---|
| 689 | pubRel = mqtt_codec_publishAck(packetId);
|
---|
| 690 | if (pubRel == NULL)
|
---|
| 691 | {
|
---|
| 692 | LogError("Failed to allocate publish ack message.");
|
---|
| 693 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 694 | }
|
---|
| 695 | }
|
---|
| 696 | if (pubRel != NULL)
|
---|
| 697 | {
|
---|
| 698 | size_t size = BUFFER_length(pubRel);
|
---|
| 699 | (void)sendPacketItem(mqtt_client, BUFFER_u_char(pubRel), size);
|
---|
| 700 | BUFFER_delete(pubRel);
|
---|
| 701 | }
|
---|
| 702 | }
|
---|
| 703 | mqttmessage_destroy(msgHandle);
|
---|
| 704 | }
|
---|
| 705 |
|
---|
| 706 | if (trace_log != NULL)
|
---|
| 707 | {
|
---|
| 708 | STRING_delete(trace_log);
|
---|
| 709 | }
|
---|
| 710 |
|
---|
| 711 | free(topicName);
|
---|
| 712 | }
|
---|
| 713 | }
|
---|
| 714 |
|
---|
| 715 | static void recvCompleteCallback(void* context, CONTROL_PACKET_TYPE packet, int flags, BUFFER_HANDLE headerData)
|
---|
| 716 | {
|
---|
| 717 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)context;
|
---|
| 718 | if (mqtt_client != NULL)
|
---|
| 719 | {
|
---|
| 720 | size_t packetLength = 0;
|
---|
| 721 | uint8_t* iterator = NULL;
|
---|
| 722 | if (headerData != NULL)
|
---|
| 723 | {
|
---|
| 724 | packetLength = BUFFER_length(headerData);
|
---|
| 725 | iterator = BUFFER_u_char(headerData);
|
---|
| 726 | }
|
---|
| 727 |
|
---|
| 728 | #ifdef ENABLE_RAW_TRACE
|
---|
| 729 | logIncomingRawTrace(mqtt_client, packet, (uint8_t)flags, iterator, packetLength);
|
---|
| 730 | #endif
|
---|
| 731 | if ((iterator != NULL && packetLength > 0) || packet == PINGRESP_TYPE)
|
---|
| 732 | {
|
---|
| 733 | switch (packet)
|
---|
| 734 | {
|
---|
| 735 | case CONNACK_TYPE:
|
---|
| 736 | {
|
---|
| 737 | /*Codes_SRS_MQTT_CLIENT_07_028: [If the actionResult parameter is of type CONNECT_ACK then the msgInfo value shall be a CONNECT_ACK structure.]*/
|
---|
| 738 | CONNECT_ACK connack = { 0 };
|
---|
| 739 | connack.isSessionPresent = (byteutil_readByte(&iterator) == 0x1) ? true : false;
|
---|
| 740 | uint8_t rc = byteutil_readByte(&iterator);
|
---|
| 741 | connack.returnCode =
|
---|
| 742 | (rc < ((uint8_t)CONN_REFUSED_UNKNOWN)) ?
|
---|
| 743 | (CONNECT_RETURN_CODE)rc : CONN_REFUSED_UNKNOWN;
|
---|
| 744 |
|
---|
| 745 | #ifndef NO_LOGGING
|
---|
| 746 | if (mqtt_client->logTrace)
|
---|
| 747 | {
|
---|
| 748 | STRING_HANDLE trace_log = STRING_construct_sprintf("CONNACK | SESSION_PRESENT: %s | RETURN_CODE: 0x%x", connack.isSessionPresent ? TRUE_CONST : FALSE_CONST, connack.returnCode);
|
---|
| 749 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 750 | STRING_delete(trace_log);
|
---|
| 751 | }
|
---|
| 752 | #endif
|
---|
| 753 | mqtt_client->fnOperationCallback(mqtt_client, MQTT_CLIENT_ON_CONNACK, (void*)&connack, mqtt_client->ctx);
|
---|
| 754 |
|
---|
| 755 | if (connack.returnCode == CONNECTION_ACCEPTED)
|
---|
| 756 | {
|
---|
| 757 | mqtt_client->clientConnected = true;
|
---|
| 758 | }
|
---|
| 759 | break;
|
---|
| 760 | }
|
---|
| 761 | case PUBLISH_TYPE:
|
---|
| 762 | {
|
---|
| 763 | ProcessPublishMessage(mqtt_client, iterator, packetLength, flags);
|
---|
| 764 | break;
|
---|
| 765 | }
|
---|
| 766 | case PUBACK_TYPE:
|
---|
| 767 | case PUBREC_TYPE:
|
---|
| 768 | case PUBREL_TYPE:
|
---|
| 769 | case PUBCOMP_TYPE:
|
---|
| 770 | {
|
---|
| 771 | /*Codes_SRS_MQTT_CLIENT_07_029: [If the actionResult parameter are of types PUBACK_TYPE, PUBREC_TYPE, PUBREL_TYPE or PUBCOMP_TYPE then the msgInfo value shall be a PUBLISH_ACK structure.]*/
|
---|
| 772 | MQTT_CLIENT_EVENT_RESULT action = (packet == PUBACK_TYPE) ? MQTT_CLIENT_ON_PUBLISH_ACK :
|
---|
| 773 | (packet == PUBREC_TYPE) ? MQTT_CLIENT_ON_PUBLISH_RECV :
|
---|
| 774 | (packet == PUBREL_TYPE) ? MQTT_CLIENT_ON_PUBLISH_REL : MQTT_CLIENT_ON_PUBLISH_COMP;
|
---|
| 775 |
|
---|
| 776 | PUBLISH_ACK publish_ack = { 0 };
|
---|
| 777 | publish_ack.packetId = byteutil_read_uint16(&iterator, packetLength);
|
---|
| 778 |
|
---|
| 779 | #ifndef NO_LOGGING
|
---|
| 780 | if (mqtt_client->logTrace)
|
---|
| 781 | {
|
---|
| 782 | STRING_HANDLE trace_log = STRING_construct_sprintf("%s | PACKET_ID: %"PRIu16, packet == PUBACK_TYPE ? "PUBACK" : (packet == PUBREC_TYPE) ? "PUBREC" : (packet == PUBREL_TYPE) ? "PUBREL" : "PUBCOMP",
|
---|
| 783 | publish_ack.packetId);
|
---|
| 784 |
|
---|
| 785 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 786 | STRING_delete(trace_log);
|
---|
| 787 | }
|
---|
| 788 | #endif
|
---|
| 789 | BUFFER_HANDLE pubRel = NULL;
|
---|
| 790 | mqtt_client->fnOperationCallback(mqtt_client, action, (void*)&publish_ack, mqtt_client->ctx);
|
---|
| 791 | if (packet == PUBREC_TYPE)
|
---|
| 792 | {
|
---|
| 793 | pubRel = mqtt_codec_publishRelease(publish_ack.packetId);
|
---|
| 794 | if (pubRel == NULL)
|
---|
| 795 | {
|
---|
| 796 | LogError("Failed to allocate publish release message.");
|
---|
| 797 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 798 | }
|
---|
| 799 | }
|
---|
| 800 | else if (packet == PUBREL_TYPE)
|
---|
| 801 | {
|
---|
| 802 | pubRel = mqtt_codec_publishComplete(publish_ack.packetId);
|
---|
| 803 | if (pubRel == NULL)
|
---|
| 804 | {
|
---|
| 805 | LogError("Failed to allocate publish complete message.");
|
---|
| 806 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 807 | }
|
---|
| 808 | }
|
---|
| 809 | if (pubRel != NULL)
|
---|
| 810 | {
|
---|
| 811 | size_t size = BUFFER_length(pubRel);
|
---|
| 812 | (void)sendPacketItem(mqtt_client, BUFFER_u_char(pubRel), size);
|
---|
| 813 | BUFFER_delete(pubRel);
|
---|
| 814 | }
|
---|
| 815 | break;
|
---|
| 816 | }
|
---|
| 817 | case SUBACK_TYPE:
|
---|
| 818 | {
|
---|
| 819 |
|
---|
| 820 | /*Codes_SRS_MQTT_CLIENT_07_030: [If the actionResult parameter is of type SUBACK_TYPE then the msgInfo value shall be a SUBSCRIBE_ACK structure.]*/
|
---|
| 821 | SUBSCRIBE_ACK suback = { 0 };
|
---|
| 822 |
|
---|
| 823 | size_t remainLen = packetLength;
|
---|
| 824 | suback.packetId = byteutil_read_uint16(&iterator, packetLength);
|
---|
| 825 | remainLen -= 2;
|
---|
| 826 |
|
---|
| 827 | #ifndef NO_LOGGING
|
---|
| 828 | STRING_HANDLE trace_log = NULL;
|
---|
| 829 | if (mqtt_client->logTrace)
|
---|
| 830 | {
|
---|
| 831 | trace_log = STRING_construct_sprintf("SUBACK | PACKET_ID: %"PRIu16, suback.packetId);
|
---|
| 832 | }
|
---|
| 833 | #endif
|
---|
| 834 | // Allocate the remaining len
|
---|
| 835 | suback.qosReturn = (QOS_VALUE*)malloc(sizeof(QOS_VALUE)*remainLen);
|
---|
| 836 | if (suback.qosReturn != NULL)
|
---|
| 837 | {
|
---|
| 838 | while (remainLen > 0)
|
---|
| 839 | {
|
---|
| 840 | uint8_t qosRet = byteutil_readByte(&iterator);
|
---|
| 841 | suback.qosReturn[suback.qosCount++] =
|
---|
| 842 | (qosRet <= ((uint8_t)DELIVER_EXACTLY_ONCE)) ?
|
---|
| 843 | (QOS_VALUE)qosRet : DELIVER_FAILURE;
|
---|
| 844 | remainLen--;
|
---|
| 845 | #ifndef NO_LOGGING
|
---|
| 846 | if (mqtt_client->logTrace)
|
---|
| 847 | {
|
---|
| 848 | STRING_sprintf(trace_log, " | RETURN_CODE: %"PRIu16, suback.qosReturn[suback.qosCount-1]);
|
---|
| 849 | }
|
---|
| 850 | #endif
|
---|
| 851 | }
|
---|
| 852 |
|
---|
| 853 | #ifndef NO_LOGGING
|
---|
| 854 | if (mqtt_client->logTrace)
|
---|
| 855 | {
|
---|
| 856 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 857 | STRING_delete(trace_log);
|
---|
| 858 | }
|
---|
| 859 | #endif
|
---|
| 860 | mqtt_client->fnOperationCallback(mqtt_client, MQTT_CLIENT_ON_SUBSCRIBE_ACK, (void*)&suback, mqtt_client->ctx);
|
---|
| 861 | free(suback.qosReturn);
|
---|
| 862 | }
|
---|
| 863 | else
|
---|
| 864 | {
|
---|
| 865 | LogError("allocation of quality of service value failed.");
|
---|
| 866 | set_error_callback(mqtt_client, MQTT_CLIENT_MEMORY_ERROR);
|
---|
| 867 | }
|
---|
| 868 | break;
|
---|
| 869 | }
|
---|
| 870 | case UNSUBACK_TYPE:
|
---|
| 871 | {
|
---|
| 872 | /*Codes_SRS_MQTT_CLIENT_07_031: [If the actionResult parameter is of type UNSUBACK_TYPE then the msgInfo value shall be a UNSUBSCRIBE_ACK structure.]*/
|
---|
| 873 | UNSUBSCRIBE_ACK unsuback = { 0 };
|
---|
| 874 | unsuback.packetId = byteutil_read_uint16(&iterator, packetLength);
|
---|
| 875 |
|
---|
| 876 | #ifndef NO_LOGGING
|
---|
| 877 | if (mqtt_client->logTrace)
|
---|
| 878 | {
|
---|
| 879 | STRING_HANDLE trace_log = STRING_construct_sprintf("UNSUBACK | PACKET_ID: %"PRIu16, unsuback.packetId);
|
---|
| 880 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 881 | STRING_delete(trace_log);
|
---|
| 882 | }
|
---|
| 883 | #endif
|
---|
| 884 | mqtt_client->fnOperationCallback(mqtt_client, MQTT_CLIENT_ON_UNSUBSCRIBE_ACK, (void*)&unsuback, mqtt_client->ctx);
|
---|
| 885 | break;
|
---|
| 886 | }
|
---|
| 887 | case PINGRESP_TYPE:
|
---|
| 888 | mqtt_client->timeSincePing = 0;
|
---|
| 889 | #ifndef NO_LOGGING
|
---|
| 890 | if (mqtt_client->logTrace)
|
---|
| 891 | {
|
---|
| 892 | STRING_HANDLE trace_log = STRING_construct_sprintf("PINGRESP");
|
---|
| 893 | log_incoming_trace(mqtt_client, trace_log);
|
---|
| 894 | STRING_delete(trace_log);
|
---|
| 895 | }
|
---|
| 896 | #endif
|
---|
| 897 | // Forward ping response to operation callback
|
---|
| 898 | mqtt_client->fnOperationCallback(mqtt_client, MQTT_CLIENT_ON_PING_RESPONSE, NULL, mqtt_client->ctx);
|
---|
| 899 | break;
|
---|
| 900 | default:
|
---|
| 901 | break;
|
---|
| 902 | }
|
---|
| 903 | }
|
---|
| 904 | }
|
---|
| 905 | else
|
---|
| 906 | {
|
---|
| 907 | LogError("recvCompleteCallback context failed.");
|
---|
| 908 | }
|
---|
| 909 | }
|
---|
| 910 |
|
---|
| 911 | MQTT_CLIENT_HANDLE mqtt_client_init(ON_MQTT_MESSAGE_RECV_CALLBACK msgRecv, ON_MQTT_OPERATION_CALLBACK operation_cb, void* opCallbackCtx, ON_MQTT_ERROR_CALLBACK onErrorCallBack, void* errorCBCtx)
|
---|
| 912 | {
|
---|
| 913 | MQTT_CLIENT* result;
|
---|
| 914 | /*Codes_SRS_MQTT_CLIENT_07_001: [If the parameters ON_MQTT_MESSAGE_RECV_CALLBACK is NULL then mqttclient_init shall return NULL.]*/
|
---|
| 915 | if (msgRecv == NULL || operation_cb == NULL)
|
---|
| 916 | {
|
---|
| 917 | LogError("Invalid parameter specified msgRecv: %p, operation_cb: %p", msgRecv, operation_cb);
|
---|
| 918 | result = NULL;
|
---|
| 919 | }
|
---|
| 920 | else
|
---|
| 921 | {
|
---|
| 922 | result = malloc(sizeof(MQTT_CLIENT));
|
---|
| 923 | if (result == NULL)
|
---|
| 924 | {
|
---|
| 925 | /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
|
---|
| 926 | LogError("mqtt_client_init failure: Allocation Failure");
|
---|
| 927 | }
|
---|
| 928 | else
|
---|
| 929 | {
|
---|
| 930 | memset(result, 0, sizeof(MQTT_CLIENT));
|
---|
| 931 | /*Codes_SRS_MQTT_CLIENT_07_003: [mqttclient_init shall allocate MQTTCLIENT_DATA_INSTANCE and return the MQTTCLIENT_HANDLE on success.]*/
|
---|
| 932 | result->packetState = UNKNOWN_TYPE;
|
---|
| 933 | result->fnOperationCallback = operation_cb;
|
---|
| 934 | result->ctx = opCallbackCtx;
|
---|
| 935 | result->fnMessageRecv = msgRecv;
|
---|
| 936 | result->fnOnErrorCallBack = onErrorCallBack;
|
---|
| 937 | result->errorCBCtx = errorCBCtx;
|
---|
| 938 | result->qosValue = DELIVER_AT_MOST_ONCE;
|
---|
| 939 | result->packetTickCntr = tickcounter_create();
|
---|
| 940 | result->maxPingRespTime = DEFAULT_MAX_PING_RESPONSE_TIME;
|
---|
| 941 | if (result->packetTickCntr == NULL)
|
---|
| 942 | {
|
---|
| 943 | /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
|
---|
| 944 | LogError("mqtt_client_init failure: tickcounter_create failure");
|
---|
| 945 | free(result);
|
---|
| 946 | result = NULL;
|
---|
| 947 | }
|
---|
| 948 | else
|
---|
| 949 | {
|
---|
| 950 | result->codec_handle = mqtt_codec_create(recvCompleteCallback, result);
|
---|
| 951 | if (result->codec_handle == NULL)
|
---|
| 952 | {
|
---|
| 953 | /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
|
---|
| 954 | LogError("mqtt_client_init failure: mqtt_codec_create failure");
|
---|
| 955 | tickcounter_destroy(result->packetTickCntr);
|
---|
| 956 | free(result);
|
---|
| 957 | result = NULL;
|
---|
| 958 | }
|
---|
| 959 | }
|
---|
| 960 | }
|
---|
| 961 | }
|
---|
| 962 | return result;
|
---|
| 963 | }
|
---|
| 964 |
|
---|
| 965 | void mqtt_client_deinit(MQTT_CLIENT_HANDLE handle)
|
---|
| 966 | {
|
---|
| 967 | /*Codes_SRS_MQTT_CLIENT_07_004: [If the parameter handle is NULL then function mqtt_client_deinit shall do nothing.]*/
|
---|
| 968 | if (handle != NULL)
|
---|
| 969 | {
|
---|
| 970 | /*Codes_SRS_MQTT_CLIENT_07_005: [mqtt_client_deinit shall deallocate all memory allocated in this unit.]*/
|
---|
| 971 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 972 | tickcounter_destroy(mqtt_client->packetTickCntr);
|
---|
| 973 | mqtt_codec_destroy(mqtt_client->codec_handle);
|
---|
| 974 | clear_mqtt_options(mqtt_client);
|
---|
| 975 | free(mqtt_client);
|
---|
| 976 | }
|
---|
| 977 | }
|
---|
| 978 |
|
---|
| 979 | int mqtt_client_connect(MQTT_CLIENT_HANDLE handle, XIO_HANDLE xioHandle, MQTT_CLIENT_OPTIONS* mqttOptions)
|
---|
| 980 | {
|
---|
| 981 | int result;
|
---|
| 982 | /*SRS_MQTT_CLIENT_07_006: [If any of the parameters handle, ioHandle, or mqttOptions are NULL then mqtt_client_connect shall return a non-zero value.]*/
|
---|
| 983 | if (handle == NULL || mqttOptions == NULL || xioHandle == NULL)
|
---|
| 984 | {
|
---|
| 985 | LogError("mqtt_client_connect: NULL argument (handle = %p, mqttOptions = %p, xioHandle: %p)", handle, mqttOptions, xioHandle);
|
---|
| 986 | result = MU_FAILURE;
|
---|
| 987 | }
|
---|
| 988 | else
|
---|
| 989 | {
|
---|
| 990 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 991 | mqtt_client->xioHandle = xioHandle;
|
---|
| 992 | mqtt_client->packetState = UNKNOWN_TYPE;
|
---|
| 993 | mqtt_client->qosValue = mqttOptions->qualityOfServiceValue;
|
---|
| 994 | mqtt_client->keepAliveInterval = mqttOptions->keepAliveInterval;
|
---|
| 995 | mqtt_client->maxPingRespTime = (DEFAULT_MAX_PING_RESPONSE_TIME < mqttOptions->keepAliveInterval/2) ? DEFAULT_MAX_PING_RESPONSE_TIME : mqttOptions->keepAliveInterval/2;
|
---|
| 996 | if (cloneMqttOptions(mqtt_client, mqttOptions) != 0)
|
---|
| 997 | {
|
---|
| 998 | LogError("Error: Clone Mqtt Options failed");
|
---|
| 999 | result = MU_FAILURE;
|
---|
| 1000 | }
|
---|
| 1001 | /*Codes_SRS_MQTT_CLIENT_07_008: [mqtt_client_connect shall open the XIO_HANDLE by calling into the xio_open interface.]*/
|
---|
| 1002 | else if (xio_open(xioHandle, onOpenComplete, mqtt_client, onBytesReceived, mqtt_client, onIoError, mqtt_client) != 0)
|
---|
| 1003 | {
|
---|
| 1004 | /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
|
---|
| 1005 | LogError("Error: io_open failed");
|
---|
| 1006 | result = MU_FAILURE;
|
---|
| 1007 | mqtt_client->xioHandle = NULL;
|
---|
| 1008 | // Remove cloned options
|
---|
| 1009 | clear_mqtt_options(mqtt_client);
|
---|
| 1010 | }
|
---|
| 1011 | else
|
---|
| 1012 | {
|
---|
| 1013 | result = 0;
|
---|
| 1014 | }
|
---|
| 1015 | }
|
---|
| 1016 | return result;
|
---|
| 1017 | }
|
---|
| 1018 |
|
---|
| 1019 | int mqtt_client_publish(MQTT_CLIENT_HANDLE handle, MQTT_MESSAGE_HANDLE msgHandle)
|
---|
| 1020 | {
|
---|
| 1021 | int result;
|
---|
| 1022 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1023 | if (mqtt_client == NULL || msgHandle == NULL)
|
---|
| 1024 | {
|
---|
| 1025 | /*Codes_SRS_MQTT_CLIENT_07_019: [If one of the parameters handle or msgHandle is NULL then mqtt_client_publish shall return a non-zero value.]*/
|
---|
| 1026 | LogError("Invalid parameter specified mqtt_client: %p, msgHandle: %p", mqtt_client, msgHandle);
|
---|
| 1027 | result = MU_FAILURE;
|
---|
| 1028 | }
|
---|
| 1029 | else
|
---|
| 1030 | {
|
---|
| 1031 | /*Codes_SRS_MQTT_CLIENT_07_021: [mqtt_client_publish shall get the message information from the MQTT_MESSAGE_HANDLE.]*/
|
---|
| 1032 | const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
|
---|
| 1033 | if (payload == NULL)
|
---|
| 1034 | {
|
---|
| 1035 | /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
|
---|
| 1036 | LogError("Error: mqttmessage_getApplicationMsg failed");
|
---|
| 1037 | result = MU_FAILURE;
|
---|
| 1038 | }
|
---|
| 1039 | else
|
---|
| 1040 | {
|
---|
| 1041 | STRING_HANDLE trace_log = construct_trace_log_handle(mqtt_client);
|
---|
| 1042 |
|
---|
| 1043 | QOS_VALUE qos = mqttmessage_getQosType(msgHandle);
|
---|
| 1044 | bool isDuplicate = mqttmessage_getIsDuplicateMsg(msgHandle);
|
---|
| 1045 | bool isRetained = mqttmessage_getIsRetained(msgHandle);
|
---|
| 1046 | uint16_t packetId = mqttmessage_getPacketId(msgHandle);
|
---|
| 1047 | const char* topicName = mqttmessage_getTopicName(msgHandle);
|
---|
| 1048 | BUFFER_HANDLE publishPacket = mqtt_codec_publish(qos, isDuplicate, isRetained, packetId, topicName, payload->message, payload->length, trace_log);
|
---|
| 1049 | if (publishPacket == NULL)
|
---|
| 1050 | {
|
---|
| 1051 | /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
|
---|
| 1052 | LogError("Error: mqtt_codec_publish failed");
|
---|
| 1053 | result = MU_FAILURE;
|
---|
| 1054 | }
|
---|
| 1055 | else
|
---|
| 1056 | {
|
---|
| 1057 | mqtt_client->packetState = PUBLISH_TYPE;
|
---|
| 1058 |
|
---|
| 1059 | /*Codes_SRS_MQTT_CLIENT_07_022: [On success mqtt_client_publish shall send the MQTT SUBCRIBE packet to the endpoint.]*/
|
---|
| 1060 | size_t size = BUFFER_length(publishPacket);
|
---|
| 1061 | if (sendPacketItem(mqtt_client, BUFFER_u_char(publishPacket), size) != 0)
|
---|
| 1062 | {
|
---|
| 1063 | /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
|
---|
| 1064 | LogError("Error: mqtt_client_publish send failed");
|
---|
| 1065 | result = MU_FAILURE;
|
---|
| 1066 | }
|
---|
| 1067 | else
|
---|
| 1068 | {
|
---|
| 1069 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 1070 | result = 0;
|
---|
| 1071 | }
|
---|
| 1072 | BUFFER_delete(publishPacket);
|
---|
| 1073 | }
|
---|
| 1074 | if (trace_log != NULL)
|
---|
| 1075 | {
|
---|
| 1076 | STRING_delete(trace_log);
|
---|
| 1077 | }
|
---|
| 1078 | }
|
---|
| 1079 | }
|
---|
| 1080 | return result;
|
---|
| 1081 | }
|
---|
| 1082 |
|
---|
| 1083 | int mqtt_client_subscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, SUBSCRIBE_PAYLOAD* subscribeList, size_t count)
|
---|
| 1084 | {
|
---|
| 1085 | int result;
|
---|
| 1086 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1087 | if (mqtt_client == NULL || subscribeList == NULL || count == 0 || packetId == 0)
|
---|
| 1088 | {
|
---|
| 1089 | /*Codes_SRS_MQTT_CLIENT_07_013: [If any of the parameters handle, subscribeList is NULL or count is 0 then mqtt_client_subscribe shall return a non-zero value.]*/
|
---|
| 1090 | LogError("Invalid parameter specified mqtt_client: %p, subscribeList: %p, count: %lu, packetId: %d", mqtt_client, subscribeList, (unsigned long)count, packetId);
|
---|
| 1091 | result = MU_FAILURE;
|
---|
| 1092 | }
|
---|
| 1093 | else
|
---|
| 1094 | {
|
---|
| 1095 | STRING_HANDLE trace_log = construct_trace_log_handle(mqtt_client);
|
---|
| 1096 |
|
---|
| 1097 | BUFFER_HANDLE subPacket = mqtt_codec_subscribe(packetId, subscribeList, count, trace_log);
|
---|
| 1098 | if (subPacket == NULL)
|
---|
| 1099 | {
|
---|
| 1100 | /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
|
---|
| 1101 | LogError("Error: mqtt_codec_subscribe failed");
|
---|
| 1102 | result = MU_FAILURE;
|
---|
| 1103 | }
|
---|
| 1104 | else
|
---|
| 1105 | {
|
---|
| 1106 | mqtt_client->packetState = SUBSCRIBE_TYPE;
|
---|
| 1107 |
|
---|
| 1108 | size_t size = BUFFER_length(subPacket);
|
---|
| 1109 | /*Codes_SRS_MQTT_CLIENT_07_015: [On success mqtt_client_subscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
|
---|
| 1110 | if (sendPacketItem(mqtt_client, BUFFER_u_char(subPacket), size) != 0)
|
---|
| 1111 | {
|
---|
| 1112 | /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
|
---|
| 1113 | LogError("Error: mqtt_client_subscribe send failed");
|
---|
| 1114 | result = MU_FAILURE;
|
---|
| 1115 | }
|
---|
| 1116 | else
|
---|
| 1117 | {
|
---|
| 1118 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 1119 | result = 0;
|
---|
| 1120 | }
|
---|
| 1121 | BUFFER_delete(subPacket);
|
---|
| 1122 | }
|
---|
| 1123 | if (trace_log != NULL)
|
---|
| 1124 | {
|
---|
| 1125 | STRING_delete(trace_log);
|
---|
| 1126 | }
|
---|
| 1127 | }
|
---|
| 1128 | return result;
|
---|
| 1129 | }
|
---|
| 1130 |
|
---|
| 1131 | int mqtt_client_unsubscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, const char** unsubscribeList, size_t count)
|
---|
| 1132 | {
|
---|
| 1133 | int result;
|
---|
| 1134 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1135 | if (mqtt_client == NULL || unsubscribeList == NULL || count == 0 || packetId == 0)
|
---|
| 1136 | {
|
---|
| 1137 | /*Codes_SRS_MQTT_CLIENT_07_016: [If any of the parameters handle, unsubscribeList is NULL or count is 0 then mqtt_client_unsubscribe shall return a non-zero value.]*/
|
---|
| 1138 | LogError("Invalid parameter specified mqtt_client: %p, unsubscribeList: %p, count: %lu, packetId: %d", mqtt_client, unsubscribeList, (unsigned long)count, packetId);
|
---|
| 1139 | result = MU_FAILURE;
|
---|
| 1140 | }
|
---|
| 1141 | else
|
---|
| 1142 | {
|
---|
| 1143 | STRING_HANDLE trace_log = construct_trace_log_handle(mqtt_client);
|
---|
| 1144 |
|
---|
| 1145 | BUFFER_HANDLE unsubPacket = mqtt_codec_unsubscribe(packetId, unsubscribeList, count, trace_log);
|
---|
| 1146 | if (unsubPacket == NULL)
|
---|
| 1147 | {
|
---|
| 1148 | /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
|
---|
| 1149 | LogError("Error: mqtt_codec_unsubscribe failed");
|
---|
| 1150 | result = MU_FAILURE;
|
---|
| 1151 | }
|
---|
| 1152 | else
|
---|
| 1153 | {
|
---|
| 1154 | mqtt_client->packetState = UNSUBSCRIBE_TYPE;
|
---|
| 1155 |
|
---|
| 1156 | size_t size = BUFFER_length(unsubPacket);
|
---|
| 1157 | /*Codes_SRS_MQTT_CLIENT_07_018: [On success mqtt_client_unsubscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
|
---|
| 1158 | if (sendPacketItem(mqtt_client, BUFFER_u_char(unsubPacket), size) != 0)
|
---|
| 1159 | {
|
---|
| 1160 | /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.].]*/
|
---|
| 1161 | LogError("Error: mqtt_client_unsubscribe send failed");
|
---|
| 1162 | result = MU_FAILURE;
|
---|
| 1163 | }
|
---|
| 1164 | else
|
---|
| 1165 | {
|
---|
| 1166 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 1167 | result = 0;
|
---|
| 1168 | }
|
---|
| 1169 | BUFFER_delete(unsubPacket);
|
---|
| 1170 | }
|
---|
| 1171 | if (trace_log != NULL)
|
---|
| 1172 | {
|
---|
| 1173 | STRING_delete(trace_log);
|
---|
| 1174 | }
|
---|
| 1175 | }
|
---|
| 1176 | return result;
|
---|
| 1177 | }
|
---|
| 1178 |
|
---|
| 1179 | int mqtt_client_disconnect(MQTT_CLIENT_HANDLE handle, ON_MQTT_DISCONNECTED_CALLBACK callback, void* ctx)
|
---|
| 1180 | {
|
---|
| 1181 | int result;
|
---|
| 1182 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1183 | if (mqtt_client == NULL)
|
---|
| 1184 | {
|
---|
| 1185 | /*Codes_SRS_MQTT_CLIENT_07_010: [If the parameters handle is NULL then mqtt_client_disconnect shall return a non-zero value.]*/
|
---|
| 1186 | result = MU_FAILURE;
|
---|
| 1187 | }
|
---|
| 1188 | else
|
---|
| 1189 | {
|
---|
| 1190 | if (mqtt_client->clientConnected)
|
---|
| 1191 | {
|
---|
| 1192 | BUFFER_HANDLE disconnectPacket = mqtt_codec_disconnect();
|
---|
| 1193 | if (disconnectPacket == NULL)
|
---|
| 1194 | {
|
---|
| 1195 | /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
|
---|
| 1196 | LogError("Error: mqtt_client_disconnect failed");
|
---|
| 1197 | mqtt_client->packetState = PACKET_TYPE_ERROR;
|
---|
| 1198 | result = MU_FAILURE;
|
---|
| 1199 | }
|
---|
| 1200 | else
|
---|
| 1201 | {
|
---|
| 1202 | /* Codes_SRS_MQTT_CLIENT_07_037: [ if callback is not NULL callback shall be called once the mqtt connection has been disconnected ] */
|
---|
| 1203 | mqtt_client->disconnect_cb = callback;
|
---|
| 1204 | mqtt_client->disconnect_ctx = ctx;
|
---|
| 1205 | mqtt_client->packetState = DISCONNECT_TYPE;
|
---|
| 1206 |
|
---|
| 1207 | size_t size = BUFFER_length(disconnectPacket);
|
---|
| 1208 | /*Codes_SRS_MQTT_CLIENT_07_012: [On success mqtt_client_disconnect shall send the MQTT DISCONNECT packet to the endpoint.]*/
|
---|
| 1209 | if (sendPacketItem(mqtt_client, BUFFER_u_char(disconnectPacket), size) != 0)
|
---|
| 1210 | {
|
---|
| 1211 | /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
|
---|
| 1212 | LogError("Error: mqtt_client_disconnect send failed");
|
---|
| 1213 | result = MU_FAILURE;
|
---|
| 1214 | }
|
---|
| 1215 | else
|
---|
| 1216 | {
|
---|
| 1217 | if (mqtt_client->logTrace)
|
---|
| 1218 | {
|
---|
| 1219 | STRING_HANDLE trace_log = STRING_construct("DISCONNECT");
|
---|
| 1220 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 1221 | STRING_delete(trace_log);
|
---|
| 1222 | }
|
---|
| 1223 | result = 0;
|
---|
| 1224 | }
|
---|
| 1225 | BUFFER_delete(disconnectPacket);
|
---|
| 1226 | }
|
---|
| 1227 | clear_mqtt_options(mqtt_client);
|
---|
| 1228 | }
|
---|
| 1229 | else
|
---|
| 1230 | {
|
---|
| 1231 | // If the client is not connected then just close the underlying socket
|
---|
| 1232 | mqtt_client->disconnect_cb = callback;
|
---|
| 1233 | mqtt_client->disconnect_ctx = ctx;
|
---|
| 1234 |
|
---|
| 1235 | close_connection(mqtt_client);
|
---|
| 1236 | clear_mqtt_options(mqtt_client);
|
---|
| 1237 | result = 0;
|
---|
| 1238 | }
|
---|
| 1239 | }
|
---|
| 1240 | return result;
|
---|
| 1241 | }
|
---|
| 1242 |
|
---|
| 1243 | void mqtt_client_dowork(MQTT_CLIENT_HANDLE handle)
|
---|
| 1244 | {
|
---|
| 1245 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1246 | /*Codes_SRS_MQTT_CLIENT_18_001: [If the client is disconnected, mqtt_client_dowork shall do nothing.]*/
|
---|
| 1247 | /*Codes_SRS_MQTT_CLIENT_07_023: [If the parameter handle is NULL then mqtt_client_dowork shall do nothing.]*/
|
---|
| 1248 | if (mqtt_client != NULL && mqtt_client->xioHandle != NULL)
|
---|
| 1249 | {
|
---|
| 1250 | /*Codes_SRS_MQTT_CLIENT_07_024: [mqtt_client_dowork shall call the xio_dowork function to complete operations.]*/
|
---|
| 1251 | xio_dowork(mqtt_client->xioHandle);
|
---|
| 1252 |
|
---|
| 1253 | /*Codes_SRS_MQTT_CLIENT_07_025: [mqtt_client_dowork shall retrieve the the last packet send value and ...]*/
|
---|
| 1254 | if (mqtt_client->socketConnected && mqtt_client->clientConnected && mqtt_client->keepAliveInterval > 0)
|
---|
| 1255 | {
|
---|
| 1256 | tickcounter_ms_t current_ms;
|
---|
| 1257 | if (tickcounter_get_current_ms(mqtt_client->packetTickCntr, ¤t_ms) != 0)
|
---|
| 1258 | {
|
---|
| 1259 | LogError("Error: tickcounter_get_current_ms failed");
|
---|
| 1260 | }
|
---|
| 1261 | else
|
---|
| 1262 | {
|
---|
| 1263 | /* Codes_SRS_MQTT_CLIENT_07_035: [If the timeSincePing has expired past the maxPingRespTime then mqtt_client_dowork shall call the Error Callback function with the message MQTT_CLIENT_NO_PING_RESPONSE] */
|
---|
| 1264 | if (mqtt_client->timeSincePing > 0 && ((current_ms - mqtt_client->timeSincePing)/1000) > mqtt_client->maxPingRespTime)
|
---|
| 1265 | {
|
---|
| 1266 | // We haven't gotten a ping response in the alloted time
|
---|
| 1267 | set_error_callback(mqtt_client, MQTT_CLIENT_NO_PING_RESPONSE);
|
---|
| 1268 | mqtt_client->timeSincePing = 0;
|
---|
| 1269 | mqtt_client->packetSendTimeMs = 0;
|
---|
| 1270 | mqtt_client->packetState = UNKNOWN_TYPE;
|
---|
| 1271 | }
|
---|
| 1272 | else if (((current_ms - mqtt_client->packetSendTimeMs) / 1000) >= mqtt_client->keepAliveInterval)
|
---|
| 1273 | {
|
---|
| 1274 | /*Codes_SRS_MQTT_CLIENT_07_026: [if keepAliveInternal is > 0 and the send time is greater than the MQTT KeepAliveInterval then it shall construct an MQTT PINGREQ packet.]*/
|
---|
| 1275 | BUFFER_HANDLE pingPacket = mqtt_codec_ping();
|
---|
| 1276 | if (pingPacket != NULL)
|
---|
| 1277 | {
|
---|
| 1278 | size_t size = BUFFER_length(pingPacket);
|
---|
| 1279 | (void)sendPacketItem(mqtt_client, BUFFER_u_char(pingPacket), size);
|
---|
| 1280 | BUFFER_delete(pingPacket);
|
---|
| 1281 | (void)tickcounter_get_current_ms(mqtt_client->packetTickCntr, &mqtt_client->timeSincePing);
|
---|
| 1282 |
|
---|
| 1283 | if (mqtt_client->logTrace)
|
---|
| 1284 | {
|
---|
| 1285 | STRING_HANDLE trace_log = STRING_construct("PINGREQ");
|
---|
| 1286 | log_outgoing_trace(mqtt_client, trace_log);
|
---|
| 1287 | STRING_delete(trace_log);
|
---|
| 1288 | }
|
---|
| 1289 | }
|
---|
| 1290 | }
|
---|
| 1291 | }
|
---|
| 1292 | }
|
---|
| 1293 | }
|
---|
| 1294 | }
|
---|
| 1295 |
|
---|
| 1296 | void mqtt_client_set_trace(MQTT_CLIENT_HANDLE handle, bool traceOn, bool rawBytesOn)
|
---|
| 1297 | {
|
---|
| 1298 | AZURE_UNREFERENCED_PARAMETER(handle);
|
---|
| 1299 | AZURE_UNREFERENCED_PARAMETER(traceOn);
|
---|
| 1300 | AZURE_UNREFERENCED_PARAMETER(rawBytesOn);
|
---|
| 1301 | #ifndef NO_LOGGING
|
---|
| 1302 | MQTT_CLIENT* mqtt_client = (MQTT_CLIENT*)handle;
|
---|
| 1303 | if (mqtt_client != NULL)
|
---|
| 1304 | {
|
---|
| 1305 | mqtt_client->logTrace = traceOn;
|
---|
| 1306 | #ifdef ENABLE_RAW_TRACE
|
---|
| 1307 | mqtt_client->rawBytesTrace = rawBytesOn;
|
---|
| 1308 | #endif
|
---|
| 1309 | }
|
---|
| 1310 | #endif
|
---|
| 1311 | }
|
---|