Azure IoT / azure_uamqp_c

A small memory footprint AMQP implimentation

Dependents:   iothub_client_sample_amqp remote_monitoring simplesample_amqp

sasl_frame_codec.c@30:0407b2db334c, 2017-07-28 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jul 28 09:52:29 2017 -0700
Revision:
30:0407b2db334c
Parent:
28:add19eb7defa 
1.1.20

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:6ae2f7bca550 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:6ae2f7bca550 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:6ae2f7bca550 3
Azure.IoT Build 0:6ae2f7bca550 4 #include <stdlib.h>
Azure.IoT Build 0:6ae2f7bca550 5 #include <stdint.h>
Azure.IoT Build 0:6ae2f7bca550 6 #include <stddef.h>
Azure.IoT Build 0:6ae2f7bca550 7 #include <string.h>
AzureIoTClient 20:206846c14c80 8 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 19:000ab4e6a2c1 9 #include "azure_c_shared_utility/optimize_size.h"
AzureIoTClient 23:1111ee8bcba4 10 #include "azure_c_shared_utility/xlogging.h"
Azure.IoT Build 0:6ae2f7bca550 11 #include "azure_uamqp_c/sasl_frame_codec.h"
Azure.IoT Build 0:6ae2f7bca550 12 #include "azure_uamqp_c/frame_codec.h"
Azure.IoT Build 0:6ae2f7bca550 13 #include "azure_uamqp_c/amqpvalue.h"
Azure.IoT Build 0:6ae2f7bca550 14 #include "azure_uamqp_c/amqp_definitions.h"
Azure.IoT Build 0:6ae2f7bca550 15
Azure.IoT Build 0:6ae2f7bca550 16 /* Requirements implemented by design or by other modules */
Azure.IoT Build 0:6ae2f7bca550 17 /* Codes_SRS_SASL_FRAME_CODEC_01_011: [A SASL frame has a type code of 0x01.] */
Azure.IoT Build 0:6ae2f7bca550 18 /* Codes_SRS_SASL_FRAME_CODEC_01_016: [The maximum size of a SASL frame is defined by MIN-MAX-FRAME-SIZE.] */
Azure.IoT Build 0:6ae2f7bca550 19
Azure.IoT Build 0:6ae2f7bca550 20 #define MIX_MAX_FRAME_SIZE 512
Azure.IoT Build 0:6ae2f7bca550 21
Azure.IoT Build 0:6ae2f7bca550 22 typedef enum SASL_FRAME_DECODE_STATE_TAG
Azure.IoT Build 0:6ae2f7bca550 23 {
AzureIoTClient 28:add19eb7defa 24 SASL_FRAME_DECODE_FRAME,
AzureIoTClient 28:add19eb7defa 25 SASL_FRAME_DECODE_ERROR
Azure.IoT Build 0:6ae2f7bca550 26 } SASL_FRAME_DECODE_STATE;
Azure.IoT Build 0:6ae2f7bca550 27
Azure.IoT Build 0:6ae2f7bca550 28 typedef struct SASL_FRAME_CODEC_INSTANCE_TAG
Azure.IoT Build 0:6ae2f7bca550 29 {
AzureIoTClient 28:add19eb7defa 30 FRAME_CODEC_HANDLE frame_codec;
Azure.IoT Build 0:6ae2f7bca550 31
AzureIoTClient 28:add19eb7defa 32 /* decode */
AzureIoTClient 28:add19eb7defa 33 ON_SASL_FRAME_RECEIVED on_sasl_frame_received;
AzureIoTClient 28:add19eb7defa 34 ON_SASL_FRAME_CODEC_ERROR on_sasl_frame_codec_error;
AzureIoTClient 28:add19eb7defa 35 void* callback_context;
AzureIoTClient 28:add19eb7defa 36 AMQPVALUE_DECODER_HANDLE decoder;
AzureIoTClient 28:add19eb7defa 37 SASL_FRAME_DECODE_STATE decode_state;
AzureIoTClient 28:add19eb7defa 38 AMQP_VALUE decoded_sasl_frame_value;
Azure.IoT Build 0:6ae2f7bca550 39 } SASL_FRAME_CODEC_INSTANCE;
Azure.IoT Build 0:6ae2f7bca550 40
Azure.IoT Build 0:6ae2f7bca550 41 static void amqp_value_decoded(void* context, AMQP_VALUE decoded_value)
Azure.IoT Build 0:6ae2f7bca550 42 {
AzureIoTClient 28:add19eb7defa 43 SASL_FRAME_CODEC_INSTANCE* sasl_frame_codec_instance = (SASL_FRAME_CODEC_INSTANCE*)context;
AzureIoTClient 28:add19eb7defa 44 AMQP_VALUE descriptor = amqpvalue_get_inplace_descriptor(decoded_value);
Azure.IoT Build 0:6ae2f7bca550 45
AzureIoTClient 28:add19eb7defa 46 if (descriptor == NULL)
AzureIoTClient 28:add19eb7defa 47 {
AzureIoTClient 23:1111ee8bcba4 48 LogError("Cannot get frame descriptor");
AzureIoTClient 28:add19eb7defa 49 sasl_frame_codec_instance->decode_state = SASL_FRAME_DECODE_ERROR;
Azure.IoT Build 0:6ae2f7bca550 50
AzureIoTClient 28:add19eb7defa 51 /* Codes_SRS_SASL_FRAME_CODEC_01_049: [If any error occurs while decoding a frame, the decoder shall call the on_sasl_frame_codec_error and pass to it the callback_context, both of those being the ones given to sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 52 sasl_frame_codec_instance->on_sasl_frame_codec_error(sasl_frame_codec_instance->callback_context);
AzureIoTClient 28:add19eb7defa 53 }
AzureIoTClient 28:add19eb7defa 54 else
AzureIoTClient 28:add19eb7defa 55 {
AzureIoTClient 28:add19eb7defa 56 /* Codes_SRS_SASL_FRAME_CODEC_01_009: [The frame body of a SASL frame MUST contain exactly one AMQP type, whose type encoding MUST have provides="sasl-frame".] */
AzureIoTClient 28:add19eb7defa 57 if (!is_sasl_mechanisms_type_by_descriptor(descriptor) &&
AzureIoTClient 28:add19eb7defa 58 !is_sasl_init_type_by_descriptor(descriptor) &&
AzureIoTClient 28:add19eb7defa 59 !is_sasl_challenge_type_by_descriptor(descriptor) &&
AzureIoTClient 28:add19eb7defa 60 !is_sasl_response_type_by_descriptor(descriptor) &&
AzureIoTClient 28:add19eb7defa 61 !is_sasl_outcome_type_by_descriptor(descriptor))
AzureIoTClient 28:add19eb7defa 62 {
AzureIoTClient 23:1111ee8bcba4 63 LogError("Not a SASL frame");
AzureIoTClient 23:1111ee8bcba4 64 sasl_frame_codec_instance->decode_state = SASL_FRAME_DECODE_ERROR;
Azure.IoT Build 0:6ae2f7bca550 65
AzureIoTClient 28:add19eb7defa 66 /* Codes_SRS_SASL_FRAME_CODEC_01_049: [If any error occurs while decoding a frame, the decoder shall call the on_sasl_frame_codec_error and pass to it the callback_context, both of those being the ones given to sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 67 sasl_frame_codec_instance->on_sasl_frame_codec_error(sasl_frame_codec_instance->callback_context);
AzureIoTClient 28:add19eb7defa 68 }
AzureIoTClient 28:add19eb7defa 69 else
AzureIoTClient 28:add19eb7defa 70 {
AzureIoTClient 28:add19eb7defa 71 sasl_frame_codec_instance->decoded_sasl_frame_value = decoded_value;
AzureIoTClient 28:add19eb7defa 72 }
AzureIoTClient 28:add19eb7defa 73 }
Azure.IoT Build 0:6ae2f7bca550 74 }
Azure.IoT Build 0:6ae2f7bca550 75
Azure.IoT Build 0:6ae2f7bca550 76 static void frame_received(void* context, const unsigned char* type_specific, uint32_t type_specific_size, const unsigned char* frame_body, uint32_t frame_body_size)
Azure.IoT Build 0:6ae2f7bca550 77 {
AzureIoTClient 28:add19eb7defa 78 SASL_FRAME_CODEC_INSTANCE* sasl_frame_codec_instance = (SASL_FRAME_CODEC_INSTANCE*)context;
Azure.IoT Build 0:6ae2f7bca550 79
AzureIoTClient 28:add19eb7defa 80 /* Codes_SRS_SASL_FRAME_CODEC_01_006: [Bytes 6 and 7 of the header are ignored.] */
AzureIoTClient 28:add19eb7defa 81 (void)type_specific;
AzureIoTClient 28:add19eb7defa 82 /* Codes_SRS_SASL_FRAME_CODEC_01_007: [The extended header is ignored.] */
Azure.IoT Build 0:6ae2f7bca550 83
AzureIoTClient 28:add19eb7defa 84 /* Codes_SRS_SASL_FRAME_CODEC_01_008: [The maximum size of a SASL frame is defined by MIN-MAX-FRAME-SIZE.] */
AzureIoTClient 28:add19eb7defa 85 if ((type_specific_size + frame_body_size + 6 > MIX_MAX_FRAME_SIZE) ||
AzureIoTClient 28:add19eb7defa 86 /* Codes_SRS_SASL_FRAME_CODEC_01_010: [Receipt of an empty frame is an irrecoverable error.] */
AzureIoTClient 28:add19eb7defa 87 (frame_body_size == 0))
AzureIoTClient 28:add19eb7defa 88 {
AzureIoTClient 23:1111ee8bcba4 89 LogError("Bad SASL frame size");
Azure.IoT Build 0:6ae2f7bca550 90
AzureIoTClient 28:add19eb7defa 91 /* Codes_SRS_SASL_FRAME_CODEC_01_049: [If any error occurs while decoding a frame, the decoder shall call the on_sasl_frame_codec_error and pass to it the callback_context, both of those being the ones given to sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 92 sasl_frame_codec_instance->on_sasl_frame_codec_error(sasl_frame_codec_instance->callback_context);
AzureIoTClient 28:add19eb7defa 93 }
AzureIoTClient 28:add19eb7defa 94 else
AzureIoTClient 28:add19eb7defa 95 {
AzureIoTClient 28:add19eb7defa 96 switch (sasl_frame_codec_instance->decode_state)
AzureIoTClient 28:add19eb7defa 97 {
AzureIoTClient 28:add19eb7defa 98 default:
AzureIoTClient 28:add19eb7defa 99 case SASL_FRAME_DECODE_ERROR:
AzureIoTClient 28:add19eb7defa 100 break;
Azure.IoT Build 0:6ae2f7bca550 101
AzureIoTClient 28:add19eb7defa 102 case SASL_FRAME_DECODE_FRAME:
AzureIoTClient 28:add19eb7defa 103 sasl_frame_codec_instance->decoded_sasl_frame_value = NULL;
Azure.IoT Build 0:6ae2f7bca550 104
AzureIoTClient 28:add19eb7defa 105 /* Codes_SRS_SASL_FRAME_CODEC_01_039: [sasl_frame_codec shall decode the sasl-frame value as a described type.] */
AzureIoTClient 28:add19eb7defa 106 /* Codes_SRS_SASL_FRAME_CODEC_01_048: [Receipt of an empty frame is an irrecoverable error.] */
AzureIoTClient 28:add19eb7defa 107 while ((frame_body_size > 0) &&
AzureIoTClient 28:add19eb7defa 108 (sasl_frame_codec_instance->decoded_sasl_frame_value == NULL) &&
AzureIoTClient 28:add19eb7defa 109 (sasl_frame_codec_instance->decode_state != SASL_FRAME_DECODE_ERROR))
AzureIoTClient 28:add19eb7defa 110 {
AzureIoTClient 28:add19eb7defa 111 /* Codes_SRS_SASL_FRAME_CODEC_01_040: [Decoding the sasl-frame type shall be done by feeding the bytes to the decoder create in sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 112 if (amqpvalue_decode_bytes(sasl_frame_codec_instance->decoder, frame_body, 1) != 0)
AzureIoTClient 28:add19eb7defa 113 {
AzureIoTClient 23:1111ee8bcba4 114 LogError("Could not decode SASL frame AMQP value");
AzureIoTClient 23:1111ee8bcba4 115 sasl_frame_codec_instance->decode_state = SASL_FRAME_DECODE_ERROR;
AzureIoTClient 28:add19eb7defa 116 }
AzureIoTClient 28:add19eb7defa 117 else
AzureIoTClient 28:add19eb7defa 118 {
AzureIoTClient 28:add19eb7defa 119 frame_body_size--;
AzureIoTClient 28:add19eb7defa 120 frame_body++;
AzureIoTClient 28:add19eb7defa 121 }
AzureIoTClient 28:add19eb7defa 122 }
Azure.IoT Build 0:6ae2f7bca550 123
AzureIoTClient 28:add19eb7defa 124 /* Codes_SRS_SASL_FRAME_CODEC_01_009: [The frame body of a SASL frame MUST contain exactly one AMQP type, whose type encoding MUST have provides="sasl-frame".] */
AzureIoTClient 28:add19eb7defa 125 if (frame_body_size > 0)
AzureIoTClient 28:add19eb7defa 126 {
AzureIoTClient 23:1111ee8bcba4 127 LogError("More than one AMQP value detected in SASL frame");
AzureIoTClient 23:1111ee8bcba4 128 sasl_frame_codec_instance->decode_state = SASL_FRAME_DECODE_ERROR;
Azure.IoT Build 0:6ae2f7bca550 129
AzureIoTClient 28:add19eb7defa 130 /* Codes_SRS_SASL_FRAME_CODEC_01_049: [If any error occurs while decoding a frame, the decoder shall call the on_sasl_frame_codec_error and pass to it the callback_context, both of those being the ones given to sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 131 sasl_frame_codec_instance->on_sasl_frame_codec_error(sasl_frame_codec_instance->callback_context);
AzureIoTClient 28:add19eb7defa 132 }
Azure.IoT Build 0:6ae2f7bca550 133
AzureIoTClient 28:add19eb7defa 134 if (sasl_frame_codec_instance->decode_state != SASL_FRAME_DECODE_ERROR)
AzureIoTClient 28:add19eb7defa 135 {
AzureIoTClient 28:add19eb7defa 136 /* Codes_SRS_SASL_FRAME_CODEC_01_041: [Once the sasl frame is decoded, the callback on_sasl_frame_received shall be called.] */
AzureIoTClient 28:add19eb7defa 137 /* Codes_SRS_SASL_FRAME_CODEC_01_042: [The decoded sasl-frame value and the context passed in sasl_frame_codec_create shall be passed to on_sasl_frame_received.] */
AzureIoTClient 28:add19eb7defa 138 sasl_frame_codec_instance->on_sasl_frame_received(sasl_frame_codec_instance->callback_context, sasl_frame_codec_instance->decoded_sasl_frame_value);
AzureIoTClient 28:add19eb7defa 139 }
AzureIoTClient 28:add19eb7defa 140 break;
AzureIoTClient 28:add19eb7defa 141 }
AzureIoTClient 28:add19eb7defa 142 }
Azure.IoT Build 0:6ae2f7bca550 143 }
Azure.IoT Build 0:6ae2f7bca550 144
Azure.IoT Build 0:6ae2f7bca550 145 static int encode_bytes(void* context, const unsigned char* bytes, size_t length)
Azure.IoT Build 0:6ae2f7bca550 146 {
AzureIoTClient 28:add19eb7defa 147 PAYLOAD* payload = (PAYLOAD*)context;
AzureIoTClient 28:add19eb7defa 148 (void)memcpy((unsigned char*)payload->bytes + payload->length, bytes, length);
AzureIoTClient 28:add19eb7defa 149 payload->length += length;
AzureIoTClient 28:add19eb7defa 150 return 0;
Azure.IoT Build 0:6ae2f7bca550 151 }
Azure.IoT Build 0:6ae2f7bca550 152
Azure.IoT Build 0:6ae2f7bca550 153 SASL_FRAME_CODEC_HANDLE sasl_frame_codec_create(FRAME_CODEC_HANDLE frame_codec, ON_SASL_FRAME_RECEIVED on_sasl_frame_received, ON_SASL_FRAME_CODEC_ERROR on_sasl_frame_codec_error, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 154 {
AzureIoTClient 28:add19eb7defa 155 SASL_FRAME_CODEC_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 156
AzureIoTClient 28:add19eb7defa 157 /* Codes_SRS_SASL_FRAME_CODEC_01_019: [If any of the arguments frame_codec, on_sasl_frame_received or on_sasl_frame_codec_error is NULL, sasl_frame_codec_create shall return NULL.] */
AzureIoTClient 28:add19eb7defa 158 if ((frame_codec == NULL) ||
AzureIoTClient 28:add19eb7defa 159 (on_sasl_frame_received == NULL) ||
AzureIoTClient 28:add19eb7defa 160 (on_sasl_frame_codec_error == NULL))
AzureIoTClient 28:add19eb7defa 161 {
AzureIoTClient 23:1111ee8bcba4 162 LogError("Bad arguments: frame_codec = %p, on_sasl_frame_received = %p, on_sasl_frame_codec_error = %p",
AzureIoTClient 23:1111ee8bcba4 163 frame_codec, on_sasl_frame_received, on_sasl_frame_codec_error);
AzureIoTClient 23:1111ee8bcba4 164 result = NULL;
AzureIoTClient 28:add19eb7defa 165 }
AzureIoTClient 28:add19eb7defa 166 else
AzureIoTClient 28:add19eb7defa 167 {
AzureIoTClient 28:add19eb7defa 168 /* Codes_SRS_SASL_FRAME_CODEC_01_018: [sasl_frame_codec_create shall create an instance of an sasl_frame_codec and return a non-NULL handle to it.] */
AzureIoTClient 28:add19eb7defa 169 result = (SASL_FRAME_CODEC_INSTANCE*)malloc(sizeof(SASL_FRAME_CODEC_INSTANCE));
AzureIoTClient 23:1111ee8bcba4 170 if (result == NULL)
AzureIoTClient 23:1111ee8bcba4 171 {
AzureIoTClient 23:1111ee8bcba4 172 LogError("Cannot allocate memory for SASL frame codec");
AzureIoTClient 23:1111ee8bcba4 173 }
AzureIoTClient 23:1111ee8bcba4 174 else
AzureIoTClient 23:1111ee8bcba4 175 {
AzureIoTClient 28:add19eb7defa 176 result->frame_codec = frame_codec;
AzureIoTClient 28:add19eb7defa 177 result->on_sasl_frame_received = on_sasl_frame_received;
AzureIoTClient 28:add19eb7defa 178 result->on_sasl_frame_codec_error = on_sasl_frame_codec_error;
AzureIoTClient 28:add19eb7defa 179 result->callback_context = callback_context;
AzureIoTClient 28:add19eb7defa 180 result->decode_state = SASL_FRAME_DECODE_FRAME;
Azure.IoT Build 0:6ae2f7bca550 181
AzureIoTClient 28:add19eb7defa 182 /* Codes_SRS_SASL_FRAME_CODEC_01_022: [sasl_frame_codec_create shall create a decoder to be used for decoding SASL values.] */
AzureIoTClient 28:add19eb7defa 183 result->decoder = amqpvalue_decoder_create(amqp_value_decoded, result);
AzureIoTClient 28:add19eb7defa 184 if (result->decoder == NULL)
AzureIoTClient 28:add19eb7defa 185 {
AzureIoTClient 28:add19eb7defa 186 /* Codes_SRS_SASL_FRAME_CODEC_01_023: [If creating the decoder fails, sasl_frame_codec_create shall fail and return NULL.] */
AzureIoTClient 23:1111ee8bcba4 187 LogError("Cannot create AMQP value decoder");
AzureIoTClient 23:1111ee8bcba4 188 free(result);
AzureIoTClient 28:add19eb7defa 189 result = NULL;
AzureIoTClient 28:add19eb7defa 190 }
AzureIoTClient 28:add19eb7defa 191 else
AzureIoTClient 28:add19eb7defa 192 {
AzureIoTClient 28:add19eb7defa 193 /* Codes_SRS_SASL_FRAME_CODEC_01_020: [sasl_frame_codec_create shall subscribe for SASL frames with the given frame_codec.] */
AzureIoTClient 28:add19eb7defa 194 /* Codes_SRS_SASL_FRAME_CODEC_01_001: [A SASL frame has a type code of 0x01.] */
AzureIoTClient 28:add19eb7defa 195 if (frame_codec_subscribe(frame_codec, FRAME_TYPE_SASL, frame_received, result) != 0)
AzureIoTClient 28:add19eb7defa 196 {
AzureIoTClient 28:add19eb7defa 197 /* Codes_SRS_SASL_FRAME_CODEC_01_021: [If subscribing for SASL frames fails, sasl_frame_codec_create shall fail and return NULL.] */
AzureIoTClient 23:1111ee8bcba4 198 LogError("Cannot subscribe for SASL frames");
AzureIoTClient 23:1111ee8bcba4 199 amqpvalue_decoder_destroy(result->decoder);
AzureIoTClient 28:add19eb7defa 200 free(result);
AzureIoTClient 28:add19eb7defa 201 result = NULL;
AzureIoTClient 28:add19eb7defa 202 }
AzureIoTClient 28:add19eb7defa 203 }
AzureIoTClient 28:add19eb7defa 204 }
AzureIoTClient 28:add19eb7defa 205 }
Azure.IoT Build 0:6ae2f7bca550 206
AzureIoTClient 28:add19eb7defa 207 return result;
Azure.IoT Build 0:6ae2f7bca550 208 }
Azure.IoT Build 0:6ae2f7bca550 209
Azure.IoT Build 0:6ae2f7bca550 210 void sasl_frame_codec_destroy(SASL_FRAME_CODEC_HANDLE sasl_frame_codec)
Azure.IoT Build 0:6ae2f7bca550 211 {
AzureIoTClient 28:add19eb7defa 212 /* Codes_SRS_SASL_FRAME_CODEC_01_026: [If sasl_frame_codec is NULL, sasl_frame_codec_destroy shall do nothing.] */
AzureIoTClient 23:1111ee8bcba4 213 if (sasl_frame_codec == NULL)
AzureIoTClient 23:1111ee8bcba4 214 {
AzureIoTClient 23:1111ee8bcba4 215 LogError("NULL sasl_frame_codec");
AzureIoTClient 23:1111ee8bcba4 216 }
AzureIoTClient 23:1111ee8bcba4 217 else
AzureIoTClient 23:1111ee8bcba4 218 {
AzureIoTClient 28:add19eb7defa 219 /* Codes_SRS_SASL_FRAME_CODEC_01_025: [sasl_frame_codec_destroy shall free all resources associated with the sasl_frame_codec instance.] */
AzureIoTClient 28:add19eb7defa 220 SASL_FRAME_CODEC_INSTANCE* sasl_frame_codec_instance = (SASL_FRAME_CODEC_INSTANCE*)sasl_frame_codec;
Azure.IoT Build 0:6ae2f7bca550 221
AzureIoTClient 28:add19eb7defa 222 /* Codes_SRS_SASL_FRAME_CODEC_01_027: [sasl_frame_codec_destroy shall unsubscribe from receiving SASL frames from the frame_codec that was passed to sasl_frame_codec_create.] */
AzureIoTClient 28:add19eb7defa 223 (void)frame_codec_unsubscribe(sasl_frame_codec_instance->frame_codec, FRAME_TYPE_SASL);
Azure.IoT Build 0:6ae2f7bca550 224
AzureIoTClient 28:add19eb7defa 225 /* Codes_SRS_SASL_FRAME_CODEC_01_028: [The decoder created in sasl_frame_codec_create shall be destroyed by sasl_frame_codec_destroy.] */
AzureIoTClient 28:add19eb7defa 226 amqpvalue_decoder_destroy(sasl_frame_codec_instance->decoder);
AzureIoTClient 28:add19eb7defa 227 free(sasl_frame_codec_instance);
AzureIoTClient 28:add19eb7defa 228 }
Azure.IoT Build 0:6ae2f7bca550 229 }
Azure.IoT Build 0:6ae2f7bca550 230
Azure.IoT Build 0:6ae2f7bca550 231 /* Codes_SRS_SASL_FRAME_CODEC_01_029: [sasl_frame_codec_encode_frame shall encode the frame header and sasl_frame_value AMQP value in a SASL frame and on success it shall return 0.] */
AzureIoTClient 30:0407b2db334c 232 int sasl_frame_codec_encode_frame(SASL_FRAME_CODEC_HANDLE sasl_frame_codec, AMQP_VALUE sasl_frame_value, ON_BYTES_ENCODED on_bytes_encoded, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 233 {
AzureIoTClient 28:add19eb7defa 234 int result;
AzureIoTClient 28:add19eb7defa 235 SASL_FRAME_CODEC_INSTANCE* sasl_frame_codec_instance = (SASL_FRAME_CODEC_INSTANCE*)sasl_frame_codec;
Azure.IoT Build 0:6ae2f7bca550 236
AzureIoTClient 28:add19eb7defa 237 /* Codes_SRS_SASL_FRAME_CODEC_01_030: [If sasl_frame_codec or sasl_frame_value is NULL, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 28:add19eb7defa 238 if ((sasl_frame_codec == NULL) ||
AzureIoTClient 28:add19eb7defa 239 (sasl_frame_value == NULL))
AzureIoTClient 28:add19eb7defa 240 {
AzureIoTClient 28:add19eb7defa 241 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 242 LogError("Bad arguments: sasl_frame_codec = %p, sasl_frame_value = %p",
AzureIoTClient 23:1111ee8bcba4 243 sasl_frame_codec, sasl_frame_value);
AzureIoTClient 23:1111ee8bcba4 244 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 245 }
AzureIoTClient 28:add19eb7defa 246 else
AzureIoTClient 28:add19eb7defa 247 {
AzureIoTClient 28:add19eb7defa 248 AMQP_VALUE descriptor;
AzureIoTClient 28:add19eb7defa 249 uint64_t sasl_frame_descriptor_ulong;
AzureIoTClient 23:1111ee8bcba4 250 size_t encoded_size;
Azure.IoT Build 0:6ae2f7bca550 251
AzureIoTClient 23:1111ee8bcba4 252 if ((descriptor = amqpvalue_get_inplace_descriptor(sasl_frame_value)) == NULL)
AzureIoTClient 23:1111ee8bcba4 253 {
AzureIoTClient 23:1111ee8bcba4 254 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 255 LogError("Cannot get SASL frame descriptor AMQP value");
AzureIoTClient 23:1111ee8bcba4 256 result = __FAILURE__;
AzureIoTClient 23:1111ee8bcba4 257 }
AzureIoTClient 23:1111ee8bcba4 258 else if (amqpvalue_get_ulong(descriptor, &sasl_frame_descriptor_ulong) != 0)
AzureIoTClient 23:1111ee8bcba4 259 {
AzureIoTClient 23:1111ee8bcba4 260 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 261 LogError("Cannot get SASL frame descriptor ulong");
AzureIoTClient 23:1111ee8bcba4 262 result = __FAILURE__;
AzureIoTClient 23:1111ee8bcba4 263 }
AzureIoTClient 23:1111ee8bcba4 264 /* Codes_SRS_SASL_FRAME_CODEC_01_047: [The frame body of a SASL frame MUST contain exactly one AMQP type, whose type encoding MUST have provides="sasl-frame".] */
AzureIoTClient 23:1111ee8bcba4 265 else if ((sasl_frame_descriptor_ulong < SASL_MECHANISMS) ||
AzureIoTClient 28:add19eb7defa 266 (sasl_frame_descriptor_ulong > SASL_OUTCOME))
AzureIoTClient 28:add19eb7defa 267 {
AzureIoTClient 28:add19eb7defa 268 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 269 LogError("Bad SASL frame descriptor");
AzureIoTClient 23:1111ee8bcba4 270 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 271 }
AzureIoTClient 28:add19eb7defa 272 /* Codes_SRS_SASL_FRAME_CODEC_01_032: [The payload frame size shall be computed based on the encoded size of the sasl_frame_value and its fields.] */
AzureIoTClient 28:add19eb7defa 273 /* Codes_SRS_SASL_FRAME_CODEC_01_033: [The encoded size of the sasl_frame_value and its fields shall be obtained by calling amqpvalue_get_encoded_size.] */
AzureIoTClient 23:1111ee8bcba4 274 else if (amqpvalue_get_encoded_size(sasl_frame_value, &encoded_size) != 0)
AzureIoTClient 23:1111ee8bcba4 275 {
AzureIoTClient 23:1111ee8bcba4 276 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 277 LogError("Cannot get SASL frame encoded size");
AzureIoTClient 23:1111ee8bcba4 278 result = __FAILURE__;
AzureIoTClient 23:1111ee8bcba4 279 }
AzureIoTClient 28:add19eb7defa 280 /* Codes_SRS_SASL_FRAME_CODEC_01_016: [The maximum size of a SASL frame is defined by MIN-MAX-FRAME-SIZE.] */
AzureIoTClient 23:1111ee8bcba4 281 else if (encoded_size > MIX_MAX_FRAME_SIZE - 8)
AzureIoTClient 28:add19eb7defa 282 {
AzureIoTClient 28:add19eb7defa 283 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 284 LogError("SASL frame encoded size too big");
AzureIoTClient 23:1111ee8bcba4 285 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 286 }
AzureIoTClient 28:add19eb7defa 287 else
AzureIoTClient 28:add19eb7defa 288 {
AzureIoTClient 28:add19eb7defa 289 unsigned char* sasl_frame_bytes = (unsigned char*)malloc(encoded_size);
AzureIoTClient 28:add19eb7defa 290 if (sasl_frame_bytes == NULL)
AzureIoTClient 28:add19eb7defa 291 {
AzureIoTClient 23:1111ee8bcba4 292 LogError("Cannot allocate SASL frame bytes");
AzureIoTClient 23:1111ee8bcba4 293 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 294 }
AzureIoTClient 28:add19eb7defa 295 else
AzureIoTClient 28:add19eb7defa 296 {
AzureIoTClient 28:add19eb7defa 297 PAYLOAD payload;
AzureIoTClient 6:641a9672db08 298
AzureIoTClient 6:641a9672db08 299 payload.bytes = sasl_frame_bytes;
AzureIoTClient 6:641a9672db08 300 payload.length = 0;
Azure.IoT Build 0:6ae2f7bca550 301
AzureIoTClient 28:add19eb7defa 302 if (amqpvalue_encode(sasl_frame_value, encode_bytes, &payload) != 0)
AzureIoTClient 28:add19eb7defa 303 {
AzureIoTClient 23:1111ee8bcba4 304 LogError("Cannot encode SASL frame value");
AzureIoTClient 23:1111ee8bcba4 305 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 306 }
AzureIoTClient 28:add19eb7defa 307 else
AzureIoTClient 28:add19eb7defa 308 {
AzureIoTClient 28:add19eb7defa 309 /* Codes_SRS_SASL_FRAME_CODEC_01_031: [sasl_frame_codec_encode_frame shall encode the frame header and its contents by using frame_codec_encode_frame.] */
AzureIoTClient 28:add19eb7defa 310 /* Codes_SRS_SASL_FRAME_CODEC_01_012: [Bytes 6 and 7 of the header are ignored.] */
AzureIoTClient 28:add19eb7defa 311 /* Codes_SRS_SASL_FRAME_CODEC_01_013: [Implementations SHOULD set these to 0x00.] */
AzureIoTClient 28:add19eb7defa 312 /* Codes_SRS_SASL_FRAME_CODEC_01_014: [The extended header is ignored.] */
AzureIoTClient 28:add19eb7defa 313 /* Codes_SRS_SASL_FRAME_CODEC_01_015: [Implementations SHOULD therefore set DOFF to 0x02.] */
AzureIoTClient 28:add19eb7defa 314 if (frame_codec_encode_frame(sasl_frame_codec_instance->frame_codec, FRAME_TYPE_SASL, &payload, 1, NULL, 0, on_bytes_encoded, callback_context) != 0)
AzureIoTClient 28:add19eb7defa 315 {
AzureIoTClient 28:add19eb7defa 316 /* Codes_SRS_SASL_FRAME_CODEC_01_034: [If any error occurs during encoding, sasl_frame_codec_encode_frame shall fail and return a non-zero value.] */
AzureIoTClient 23:1111ee8bcba4 317 LogError("Cannot encode SASL frame");
AzureIoTClient 23:1111ee8bcba4 318 result = __FAILURE__;
AzureIoTClient 28:add19eb7defa 319 }
AzureIoTClient 28:add19eb7defa 320 else
AzureIoTClient 28:add19eb7defa 321 {
AzureIoTClient 28:add19eb7defa 322 result = 0;
AzureIoTClient 28:add19eb7defa 323 }
AzureIoTClient 28:add19eb7defa 324 }
Azure.IoT Build 0:6ae2f7bca550 325
AzureIoTClient 28:add19eb7defa 326 free(sasl_frame_bytes);
AzureIoTClient 28:add19eb7defa 327 }
AzureIoTClient 28:add19eb7defa 328 }
AzureIoTClient 28:add19eb7defa 329 }
Azure.IoT Build 0:6ae2f7bca550 330
AzureIoTClient 28:add19eb7defa 331 return result;
Azure.IoT Build 0:6ae2f7bca550 332 }