terence zhang / Mbed OS mbed-os-example-wakaama

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Dependencies:   C12832 LM75B

wakaama/packet.c@0:f9d13e09cf11, 2017-04-24 (annotated)

Committer:
terencez
Date:
Mon Apr 24 23:03:31 2017 +0000
Revision:
0:f9d13e09cf11
Child:
3:a280069151ac
The first compiled submit.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
terencez 0:f9d13e09cf11 1 /*******************************************************************************
terencez 0:f9d13e09cf11 2 *
terencez 0:f9d13e09cf11 3 * Copyright (c) 2013, 2014 Intel Corporation and others.
terencez 0:f9d13e09cf11 4 * All rights reserved. This program and the accompanying materials
terencez 0:f9d13e09cf11 5 * are made available under the terms of the Eclipse Public License v1.0
terencez 0:f9d13e09cf11 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
terencez 0:f9d13e09cf11 7 *
terencez 0:f9d13e09cf11 8 * The Eclipse Public License is available at
terencez 0:f9d13e09cf11 9 * http://www.eclipse.org/legal/epl-v10.html
terencez 0:f9d13e09cf11 10 * The Eclipse Distribution License is available at
terencez 0:f9d13e09cf11 11 * http://www.eclipse.org/org/documents/edl-v10.php.
terencez 0:f9d13e09cf11 12 *
terencez 0:f9d13e09cf11 13 * Contributors:
terencez 0:f9d13e09cf11 14 * David Navarro, Intel Corporation - initial API and implementation
terencez 0:f9d13e09cf11 15 * domedambrosio - Please refer to git log
terencez 0:f9d13e09cf11 16 * Fabien Fleutot - Please refer to git log
terencez 0:f9d13e09cf11 17 * Fabien Fleutot - Please refer to git log
terencez 0:f9d13e09cf11 18 * Simon Bernard - Please refer to git log
terencez 0:f9d13e09cf11 19 * Toby Jaffey - Please refer to git log
terencez 0:f9d13e09cf11 20 *
terencez 0:f9d13e09cf11 21 *******************************************************************************/
terencez 0:f9d13e09cf11 22
terencez 0:f9d13e09cf11 23 /*
terencez 0:f9d13e09cf11 24 Copyright (c) 2013, 2014 Intel Corporation
terencez 0:f9d13e09cf11 25
terencez 0:f9d13e09cf11 26 Redistribution and use in source and binary forms, with or without modification,
terencez 0:f9d13e09cf11 27 are permitted provided that the following conditions are met:
terencez 0:f9d13e09cf11 28
terencez 0:f9d13e09cf11 29 * Redistributions of source code must retain the above copyright notice,
terencez 0:f9d13e09cf11 30 this list of conditions and the following disclaimer.
terencez 0:f9d13e09cf11 31 * Redistributions in binary form must reproduce the above copyright notice,
terencez 0:f9d13e09cf11 32 this list of conditions and the following disclaimer in the documentation
terencez 0:f9d13e09cf11 33 and/or other materials provided with the distribution.
terencez 0:f9d13e09cf11 34 * Neither the name of Intel Corporation nor the names of its contributors
terencez 0:f9d13e09cf11 35 may be used to endorse or promote products derived from this software
terencez 0:f9d13e09cf11 36 without specific prior written permission.
terencez 0:f9d13e09cf11 37
terencez 0:f9d13e09cf11 38 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
terencez 0:f9d13e09cf11 39 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
terencez 0:f9d13e09cf11 40 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
terencez 0:f9d13e09cf11 41 IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
terencez 0:f9d13e09cf11 42 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
terencez 0:f9d13e09cf11 43 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
terencez 0:f9d13e09cf11 44 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
terencez 0:f9d13e09cf11 45 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
terencez 0:f9d13e09cf11 46 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
terencez 0:f9d13e09cf11 47 THE POSSIBILITY OF SUCH DAMAGE.
terencez 0:f9d13e09cf11 48
terencez 0:f9d13e09cf11 49 David Navarro <david.navarro@intel.com>
terencez 0:f9d13e09cf11 50
terencez 0:f9d13e09cf11 51 */
terencez 0:f9d13e09cf11 52
terencez 0:f9d13e09cf11 53 /*
terencez 0:f9d13e09cf11 54 Contains code snippets which are:
terencez 0:f9d13e09cf11 55
terencez 0:f9d13e09cf11 56 * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
terencez 0:f9d13e09cf11 57 * All rights reserved.
terencez 0:f9d13e09cf11 58 *
terencez 0:f9d13e09cf11 59 * Redistribution and use in source and binary forms, with or without
terencez 0:f9d13e09cf11 60 * modification, are permitted provided that the following conditions
terencez 0:f9d13e09cf11 61 * are met:
terencez 0:f9d13e09cf11 62 * 1. Redistributions of source code must retain the above copyright
terencez 0:f9d13e09cf11 63 * notice, this list of conditions and the following disclaimer.
terencez 0:f9d13e09cf11 64 * 2. Redistributions in binary form must reproduce the above copyright
terencez 0:f9d13e09cf11 65 * notice, this list of conditions and the following disclaimer in the
terencez 0:f9d13e09cf11 66 * documentation and/or other materials provided with the distribution.
terencez 0:f9d13e09cf11 67 * 3. Neither the name of the Institute nor the names of its contributors
terencez 0:f9d13e09cf11 68 * may be used to endorse or promote products derived from this software
terencez 0:f9d13e09cf11 69 * without specific prior written permission.
terencez 0:f9d13e09cf11 70 *
terencez 0:f9d13e09cf11 71 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
terencez 0:f9d13e09cf11 72 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
terencez 0:f9d13e09cf11 73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
terencez 0:f9d13e09cf11 74 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
terencez 0:f9d13e09cf11 75 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
terencez 0:f9d13e09cf11 76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
terencez 0:f9d13e09cf11 77 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
terencez 0:f9d13e09cf11 78 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
terencez 0:f9d13e09cf11 79 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
terencez 0:f9d13e09cf11 80 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
terencez 0:f9d13e09cf11 81 * SUCH DAMAGE.
terencez 0:f9d13e09cf11 82
terencez 0:f9d13e09cf11 83 */
terencez 0:f9d13e09cf11 84
terencez 0:f9d13e09cf11 85
terencez 0:f9d13e09cf11 86 #include "internals.h"
terencez 0:f9d13e09cf11 87
terencez 0:f9d13e09cf11 88 #include <stdlib.h>
terencez 0:f9d13e09cf11 89 #include <string.h>
terencez 0:f9d13e09cf11 90
terencez 0:f9d13e09cf11 91 #include <stdio.h>
terencez 0:f9d13e09cf11 92
terencez 0:f9d13e09cf11 93
terencez 0:f9d13e09cf11 94 static void handle_reset(lwm2m_context_t * contextP,
terencez 0:f9d13e09cf11 95 void * fromSessionH,
terencez 0:f9d13e09cf11 96 coap_packet_t * message)
terencez 0:f9d13e09cf11 97 {
terencez 0:f9d13e09cf11 98 #ifdef LWM2M_CLIENT_MODE
terencez 0:f9d13e09cf11 99 cancel_observe(contextP, message->mid, fromSessionH);
terencez 0:f9d13e09cf11 100 #endif
terencez 0:f9d13e09cf11 101 }
terencez 0:f9d13e09cf11 102
terencez 0:f9d13e09cf11 103 static coap_status_t handle_request(lwm2m_context_t * contextP,
terencez 0:f9d13e09cf11 104 void * fromSessionH,
terencez 0:f9d13e09cf11 105 coap_packet_t * message,
terencez 0:f9d13e09cf11 106 coap_packet_t * response)
terencez 0:f9d13e09cf11 107 {
terencez 0:f9d13e09cf11 108 lwm2m_uri_t * uriP;
terencez 0:f9d13e09cf11 109 coap_status_t result = NOT_FOUND_4_04;
terencez 0:f9d13e09cf11 110
terencez 0:f9d13e09cf11 111 uriP = lwm2m_decode_uri(message->uri_path);
terencez 0:f9d13e09cf11 112 if (uriP == NULL) return BAD_REQUEST_4_00;
terencez 0:f9d13e09cf11 113
terencez 0:f9d13e09cf11 114 switch(uriP->flag & LWM2M_URI_MASK_TYPE)
terencez 0:f9d13e09cf11 115 {
terencez 0:f9d13e09cf11 116 #ifdef LWM2M_CLIENT_MODE
terencez 0:f9d13e09cf11 117 case LWM2M_URI_FLAG_DM:
terencez 0:f9d13e09cf11 118 // TODO: Authentify server
terencez 0:f9d13e09cf11 119 result = handle_dm_request(contextP, uriP, fromSessionH, message, response);
terencez 0:f9d13e09cf11 120 break;
terencez 0:f9d13e09cf11 121
terencez 0:f9d13e09cf11 122 case LWM2M_URI_FLAG_BOOTSTRAP:
terencez 0:f9d13e09cf11 123 result = NOT_IMPLEMENTED_5_01;
terencez 0:f9d13e09cf11 124 break;
terencez 0:f9d13e09cf11 125 #endif
terencez 0:f9d13e09cf11 126
terencez 0:f9d13e09cf11 127 #ifdef LWM2M_SERVER_MODE
terencez 0:f9d13e09cf11 128 case LWM2M_URI_FLAG_REGISTRATION:
terencez 0:f9d13e09cf11 129 result = handle_registration_request(contextP, uriP, fromSessionH, message, response);
terencez 0:f9d13e09cf11 130 break;
terencez 0:f9d13e09cf11 131 #endif
terencez 0:f9d13e09cf11 132 default:
terencez 0:f9d13e09cf11 133 result = BAD_REQUEST_4_00;
terencez 0:f9d13e09cf11 134 break;
terencez 0:f9d13e09cf11 135 }
terencez 0:f9d13e09cf11 136
terencez 0:f9d13e09cf11 137 coap_set_status_code(response, result);
terencez 0:f9d13e09cf11 138
terencez 0:f9d13e09cf11 139 if (result < BAD_REQUEST_4_00)
terencez 0:f9d13e09cf11 140 {
terencez 0:f9d13e09cf11 141 result = NO_ERROR;
terencez 0:f9d13e09cf11 142 }
terencez 0:f9d13e09cf11 143
terencez 0:f9d13e09cf11 144 lwm2m_free( uriP);
terencez 0:f9d13e09cf11 145 return result;
terencez 0:f9d13e09cf11 146 }
terencez 0:f9d13e09cf11 147
terencez 0:f9d13e09cf11 148 /* This function is an adaptation of function coap_receive() from Erbium's er-coap-13-engine.c.
terencez 0:f9d13e09cf11 149 * Erbium is Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
terencez 0:f9d13e09cf11 150 * All rights reserved.
terencez 0:f9d13e09cf11 151 */
terencez 0:f9d13e09cf11 152 void lwm2m_handle_packet(lwm2m_context_t * contextP,
terencez 0:f9d13e09cf11 153 uint8_t * buffer,
terencez 0:f9d13e09cf11 154 int length,
terencez 0:f9d13e09cf11 155 void * fromSessionH)
terencez 0:f9d13e09cf11 156 {
terencez 0:f9d13e09cf11 157 coap_status_t coap_error_code = NO_ERROR;
terencez 0:f9d13e09cf11 158 static coap_packet_t message[1];
terencez 0:f9d13e09cf11 159 static coap_packet_t response[1];
terencez 0:f9d13e09cf11 160
terencez 0:f9d13e09cf11 161 coap_error_code = coap_parse_message(message, buffer, (uint16_t)length);
terencez 0:f9d13e09cf11 162 if (coap_error_code==NO_ERROR)
terencez 0:f9d13e09cf11 163 {
terencez 0:f9d13e09cf11 164 LOG(" Parsed: ver %u, type %u, tkl %u, code %u, mid %u\r\n", message->version, message->type, message->token_len, message->code, message->mid);
terencez 0:f9d13e09cf11 165 LOG(" Payload: %.*s\r\n\n", message->payload_len, message->payload);
terencez 0:f9d13e09cf11 166
terencez 0:f9d13e09cf11 167 if (message->code >= COAP_GET && message->code <= COAP_DELETE)
terencez 0:f9d13e09cf11 168 {
terencez 0:f9d13e09cf11 169 uint32_t block_num = 0;
terencez 0:f9d13e09cf11 170 uint16_t block_size = REST_MAX_CHUNK_SIZE;
terencez 0:f9d13e09cf11 171 uint32_t block_offset = 0;
terencez 0:f9d13e09cf11 172 int32_t new_offset = 0;
terencez 0:f9d13e09cf11 173
terencez 0:f9d13e09cf11 174 /* prepare response */
terencez 0:f9d13e09cf11 175 if (message->type==COAP_TYPE_CON)
terencez 0:f9d13e09cf11 176 {
terencez 0:f9d13e09cf11 177 /* Reliable CON requests are answered with an ACK. */
terencez 0:f9d13e09cf11 178 coap_init_message(response, COAP_TYPE_ACK, CONTENT_2_05, message->mid);
terencez 0:f9d13e09cf11 179 }
terencez 0:f9d13e09cf11 180 else
terencez 0:f9d13e09cf11 181 {
terencez 0:f9d13e09cf11 182 /* Unreliable NON requests are answered with a NON as well. */
terencez 0:f9d13e09cf11 183 coap_init_message(response, COAP_TYPE_NON, CONTENT_2_05, contextP->nextMID++);
terencez 0:f9d13e09cf11 184 }
terencez 0:f9d13e09cf11 185
terencez 0:f9d13e09cf11 186 /* mirror token */
terencez 0:f9d13e09cf11 187 if (message->token_len)
terencez 0:f9d13e09cf11 188 {
terencez 0:f9d13e09cf11 189 coap_set_header_token(response, message->token, message->token_len);
terencez 0:f9d13e09cf11 190 }
terencez 0:f9d13e09cf11 191
terencez 0:f9d13e09cf11 192 /* get offset for blockwise transfers */
terencez 0:f9d13e09cf11 193 if (coap_get_header_block2(message, &block_num, NULL, &block_size, &block_offset))
terencez 0:f9d13e09cf11 194 {
terencez 0:f9d13e09cf11 195 LOG("Blockwise: block request %u (%u/%u) @ %u bytes\n", block_num, block_size, REST_MAX_CHUNK_SIZE, block_offset);
terencez 0:f9d13e09cf11 196 block_size = MIN(block_size, REST_MAX_CHUNK_SIZE);
terencez 0:f9d13e09cf11 197 new_offset = block_offset;
terencez 0:f9d13e09cf11 198 }
terencez 0:f9d13e09cf11 199
terencez 0:f9d13e09cf11 200 coap_error_code = handle_request(contextP, fromSessionH, message, response);
terencez 0:f9d13e09cf11 201 if (coap_error_code==NO_ERROR)
terencez 0:f9d13e09cf11 202 {
terencez 0:f9d13e09cf11 203 /* Apply blockwise transfers. */
terencez 0:f9d13e09cf11 204 if ( IS_OPTION(message, COAP_OPTION_BLOCK1) && response->code<BAD_REQUEST_4_00 && !IS_OPTION(response, COAP_OPTION_BLOCK1) )
terencez 0:f9d13e09cf11 205 {
terencez 0:f9d13e09cf11 206 LOG("Block1 NOT IMPLEMENTED\n");
terencez 0:f9d13e09cf11 207
terencez 0:f9d13e09cf11 208 coap_error_code = NOT_IMPLEMENTED_5_01;
terencez 0:f9d13e09cf11 209 coap_error_message = "NoBlock1Support";
terencez 0:f9d13e09cf11 210 }
terencez 0:f9d13e09cf11 211 else if ( IS_OPTION(message, COAP_OPTION_BLOCK2) )
terencez 0:f9d13e09cf11 212 {
terencez 0:f9d13e09cf11 213 /* unchanged new_offset indicates that resource is unaware of blockwise transfer */
terencez 0:f9d13e09cf11 214 if (new_offset==block_offset)
terencez 0:f9d13e09cf11 215 {
terencez 0:f9d13e09cf11 216 LOG("Blockwise: unaware resource with payload length %u/%u\n", response->payload_len, block_size);
terencez 0:f9d13e09cf11 217 if (block_offset >= response->payload_len)
terencez 0:f9d13e09cf11 218 {
terencez 0:f9d13e09cf11 219 LOG("handle_incoming_data(): block_offset >= response->payload_len\n");
terencez 0:f9d13e09cf11 220
terencez 0:f9d13e09cf11 221 response->code = BAD_OPTION_4_02;
terencez 0:f9d13e09cf11 222 coap_set_payload(response, "BlockOutOfScope", 15); /* a const char str[] and sizeof(str) produces larger code size */
terencez 0:f9d13e09cf11 223 }
terencez 0:f9d13e09cf11 224 else
terencez 0:f9d13e09cf11 225 {
terencez 0:f9d13e09cf11 226 coap_set_header_block2(response, block_num, response->payload_len - block_offset > block_size, block_size);
terencez 0:f9d13e09cf11 227 coap_set_payload(response, response->payload+block_offset, MIN(response->payload_len - block_offset, block_size));
terencez 0:f9d13e09cf11 228 } /* if (valid offset) */
terencez 0:f9d13e09cf11 229 }
terencez 0:f9d13e09cf11 230 else
terencez 0:f9d13e09cf11 231 {
terencez 0:f9d13e09cf11 232 /* resource provides chunk-wise data */
terencez 0:f9d13e09cf11 233 LOG("Blockwise: blockwise resource, new offset %d\n", new_offset);
terencez 0:f9d13e09cf11 234 coap_set_header_block2(response, block_num, new_offset!=-1 || response->payload_len > block_size, block_size);
terencez 0:f9d13e09cf11 235 if (response->payload_len > block_size) coap_set_payload(response, response->payload, block_size);
terencez 0:f9d13e09cf11 236 } /* if (resource aware of blockwise) */
terencez 0:f9d13e09cf11 237 }
terencez 0:f9d13e09cf11 238 else if (new_offset!=0)
terencez 0:f9d13e09cf11 239 {
terencez 0:f9d13e09cf11 240 LOG("Blockwise: no block option for blockwise resource, using block size %u\n", REST_MAX_CHUNK_SIZE);
terencez 0:f9d13e09cf11 241
terencez 0:f9d13e09cf11 242 coap_set_header_block2(response, 0, new_offset!=-1, REST_MAX_CHUNK_SIZE);
terencez 0:f9d13e09cf11 243 coap_set_payload(response, response->payload, MIN(response->payload_len, REST_MAX_CHUNK_SIZE));
terencez 0:f9d13e09cf11 244 } /* if (blockwise request) */
terencez 0:f9d13e09cf11 245
terencez 0:f9d13e09cf11 246 coap_error_code = message_send(contextP, response, fromSessionH);
terencez 0:f9d13e09cf11 247
terencez 0:f9d13e09cf11 248 lwm2m_free(response->payload);
terencez 0:f9d13e09cf11 249 response->payload = NULL;
terencez 0:f9d13e09cf11 250 response->payload_len = 0;
terencez 0:f9d13e09cf11 251 }
terencez 0:f9d13e09cf11 252 else
terencez 0:f9d13e09cf11 253 {
terencez 0:f9d13e09cf11 254 coap_error_code = message_send(contextP, response, fromSessionH);
terencez 0:f9d13e09cf11 255 }
terencez 0:f9d13e09cf11 256 }
terencez 0:f9d13e09cf11 257 else
terencez 0:f9d13e09cf11 258 {
terencez 0:f9d13e09cf11 259 /* Responses */
terencez 0:f9d13e09cf11 260 lwm2m_transaction_t * transaction;
terencez 0:f9d13e09cf11 261
terencez 0:f9d13e09cf11 262 if (message->type==COAP_TYPE_ACK)
terencez 0:f9d13e09cf11 263 {
terencez 0:f9d13e09cf11 264 LOG("Received ACK\n");
terencez 0:f9d13e09cf11 265 }
terencez 0:f9d13e09cf11 266 else if (message->type==COAP_TYPE_RST)
terencez 0:f9d13e09cf11 267 {
terencez 0:f9d13e09cf11 268 LOG("Received RST\n");
terencez 0:f9d13e09cf11 269 /* Cancel possible subscriptions. */
terencez 0:f9d13e09cf11 270 handle_reset(contextP, fromSessionH, message);
terencez 0:f9d13e09cf11 271 }
terencez 0:f9d13e09cf11 272
terencez 0:f9d13e09cf11 273 #ifdef LWM2M_SERVER_MODE
terencez 0:f9d13e09cf11 274 if (message->code == COAP_204_CHANGED
terencez 0:f9d13e09cf11 275 && IS_OPTION(message, COAP_OPTION_OBSERVE))
terencez 0:f9d13e09cf11 276 {
terencez 0:f9d13e09cf11 277 handle_observe_notify(contextP, fromSessionH, message);
terencez 0:f9d13e09cf11 278 }
terencez 0:f9d13e09cf11 279 else
terencez 0:f9d13e09cf11 280 #endif
terencez 0:f9d13e09cf11 281 {
terencez 0:f9d13e09cf11 282 transaction_handle_response(contextP, fromSessionH, message);
terencez 0:f9d13e09cf11 283 }
terencez 0:f9d13e09cf11 284 } /* Request or Response */
terencez 0:f9d13e09cf11 285
terencez 0:f9d13e09cf11 286 coap_free_header(message);
terencez 0:f9d13e09cf11 287
terencez 0:f9d13e09cf11 288 } /* if (parsed correctly) */
terencez 0:f9d13e09cf11 289 else
terencez 0:f9d13e09cf11 290 {
terencez 0:f9d13e09cf11 291 LOG("Message parsing failed %d\r\n", coap_error_code);
terencez 0:f9d13e09cf11 292 }
terencez 0:f9d13e09cf11 293
terencez 0:f9d13e09cf11 294 if (coap_error_code != NO_ERROR)
terencez 0:f9d13e09cf11 295 {
terencez 0:f9d13e09cf11 296 LOG("ERROR %u: %s\n", coap_error_code, coap_error_message);
terencez 0:f9d13e09cf11 297
terencez 0:f9d13e09cf11 298 /* Set to sendable error code. */
terencez 0:f9d13e09cf11 299 if (coap_error_code >= 192)
terencez 0:f9d13e09cf11 300 {
terencez 0:f9d13e09cf11 301 coap_error_code = INTERNAL_SERVER_ERROR_5_00;
terencez 0:f9d13e09cf11 302 }
terencez 0:f9d13e09cf11 303 /* Reuse input buffer for error message. */
terencez 0:f9d13e09cf11 304 coap_init_message(message, COAP_TYPE_ACK, coap_error_code, message->mid);
terencez 0:f9d13e09cf11 305 coap_set_payload(message, coap_error_message, strlen(coap_error_message));
terencez 0:f9d13e09cf11 306 message_send(contextP, message, fromSessionH);
terencez 0:f9d13e09cf11 307 }
terencez 0:f9d13e09cf11 308 }
terencez 0:f9d13e09cf11 309
terencez 0:f9d13e09cf11 310
terencez 0:f9d13e09cf11 311 coap_status_t message_send(lwm2m_context_t * contextP,
terencez 0:f9d13e09cf11 312 coap_packet_t * message,
terencez 0:f9d13e09cf11 313 void * sessionH)
terencez 0:f9d13e09cf11 314 {
terencez 0:f9d13e09cf11 315 coap_status_t result = INTERNAL_SERVER_ERROR_5_00;
terencez 0:f9d13e09cf11 316 uint8_t pktBuffer[COAP_MAX_PACKET_SIZE+1];
terencez 0:f9d13e09cf11 317 size_t pktBufferLen = 0;
terencez 0:f9d13e09cf11 318
terencez 0:f9d13e09cf11 319 pktBufferLen = coap_serialize_message(message, pktBuffer);
terencez 0:f9d13e09cf11 320 if (0 != pktBufferLen)
terencez 0:f9d13e09cf11 321 {
terencez 0:f9d13e09cf11 322 result = contextP->bufferSendCallback(sessionH, pktBuffer, pktBufferLen, contextP->bufferSendUserData);
terencez 0:f9d13e09cf11 323 }
terencez 0:f9d13e09cf11 324
terencez 0:f9d13e09cf11 325 return result;
terencez 0:f9d13e09cf11 326 }
terencez 0:f9d13e09cf11 327