1 /******************************************************************
3 * Copyright 2014 Samsung Electronics All Rights Reserved.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 ******************************************************************/
21 // Defining _BSD_SOURCE or _DEFAULT_SOURCE causes header files to expose
22 // definitions that may otherwise be skipped. Skipping can cause implicit
23 // declaration warnings and/or bugs and subtle problems in code execution.
24 // For glibc information on feature test macros,
25 // Refer http://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
27 // This file requires #define use due to random() and srandom()
28 // For details on compatibility and glibc support,
29 // Refer http://www.gnu.org/software/libc/manual/html_node/BSD-Random.html
30 #define _DEFAULT_SOURCE
33 // Include files from the arduino platform do not provide these conversions:
35 #define htons(x) ( ((x)<< 8 & 0xFF00) | ((x)>> 8 & 0x00FF) )
36 #define ntohs(x) htons(x)
49 #include "caprotocolmessage.h"
51 #include "oic_malloc.h"
52 #include "oic_string.h"
54 // ARM GCC compiler doesnt define srandom function.
55 #if defined(ARDUINO) && !defined(ARDUINO_ARCH_SAM)
56 #define HAVE_SRANDOM 1
61 #define CA_BUFSIZE (128)
62 #define CA_PDU_MIN_SIZE (4)
63 #define CA_PORT_BUFFER_SIZE (4)
65 static const char COAP_URI_HEADER[] = "coap://[::]/";
67 static uint32_t SEED = 0;
69 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, CARequestInfo_t *outReqInfo,
70 char *outUri, uint32_t buflen)
72 OIC_LOG(DEBUG, TAG, "IN");
74 if (NULL == pdu || NULL == outReqInfo || NULL == outUri)
76 OIC_LOG(ERROR, TAG, "parameter is null");
77 return CA_STATUS_INVALID_PARAM;
80 uint32_t code = CA_NOT_FOUND;
82 OIC_LOG_V(DEBUG, TAG, "buffer length : %d", buflen);
83 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outReqInfo->info), outUri, buflen);
84 outReqInfo->method = code;
85 OIC_LOG(DEBUG, TAG, "OUT");
89 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo,
90 char *outUri, uint32_t buflen)
92 OIC_LOG(DEBUG, TAG, "IN");
94 if (NULL == pdu || NULL == outResInfo || NULL == outUri)
96 OIC_LOG(ERROR, TAG, "parameter is null");
97 return CA_STATUS_INVALID_PARAM;
100 uint32_t code = CA_NOT_FOUND;
101 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outResInfo->info), outUri, buflen);
102 outResInfo->result = code;
103 OIC_LOG(DEBUG, TAG, "OUT");
107 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, CAErrorInfo_t *errorInfo,
108 char *uri, uint32_t buflen)
110 OIC_LOG(DEBUG, TAG, "IN");
112 if (!pdu || !errorInfo || !uri)
114 OIC_LOG(ERROR, TAG, "parameter is null");
115 return CA_STATUS_INVALID_PARAM;
119 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &errorInfo->info, uri, buflen);
120 OIC_LOG(DEBUG, TAG, "OUT");
124 coap_pdu_t *CAGeneratePDU(const char *uri, uint32_t code, const CAInfo_t info)
126 OIC_LOG(DEBUG, TAG, "IN");
128 coap_pdu_t *pdu = NULL;
130 // RESET have to use only 4byte (empty message)
131 // and ACKNOWLEDGE can use empty message when code is empty.
132 if (CA_MSG_RESET == info.type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info.type))
134 OIC_LOG(DEBUG, TAG, "code is empty");
135 if (!(pdu = CAGeneratePDUImpl((code_t) code, NULL, info, NULL, 0)))
137 OIC_LOG(ERROR, TAG, "pdu NULL");
143 coap_list_t *optlist = NULL;
145 if (CA_MSG_ACKNOWLEDGE != info.type)
149 OIC_LOG(ERROR, TAG, "uri NULL");
153 uint32_t length = strlen(uri);
154 if (CA_MAX_URI_LENGTH < length)
156 OIC_LOG(ERROR, TAG, "URI len err");
160 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
161 char *coapUri = (char *) OICCalloc(1, uriLength);
164 OIC_LOG(ERROR, TAG, "out of memory");
167 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
168 OICStrcat(coapUri, uriLength, uri);
170 // parsing options in URI
171 CAResult_t res = CAParseURI(coapUri, &optlist);
172 if (CA_STATUS_OK != res)
176 coap_delete_list(optlist);
184 // parsing options in HeadOption
185 CAResult_t ret = CAParseHeadOption(code, info, &optlist);
186 if (CA_STATUS_OK != ret)
188 coap_delete_list(optlist);
191 size_t lenPayload = info.payload ? strlen(info.payload) : 0;
192 pdu = CAGeneratePDUImpl((code_t) code, optlist, info, info.payload, lenPayload);
195 OIC_LOG(ERROR, TAG, "pdu NULL");
196 coap_delete_list(optlist);
201 coap_delete_list(optlist);
204 // pdu print method : coap_show_pdu(pdu);
205 OIC_LOG(DEBUG, TAG, "OUT");
209 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode)
211 OIC_LOG(DEBUG, TAG, "IN");
215 OIC_LOG(ERROR, TAG, "data is null");
219 coap_pdu_t *outpdu = coap_new_pdu();
222 OIC_LOG(ERROR, TAG, "outpdu is null");
226 if (0 >= coap_pdu_parse((unsigned char *) data, length, outpdu))
228 OIC_LOG(ERROR, TAG, "pdu parse failed");
229 coap_delete_pdu(outpdu);
235 (*outCode) = (uint32_t) CA_RESPONSE_CODE(outpdu->hdr->code);
238 OIC_LOG(DEBUG, TAG, "OUT");
242 coap_pdu_t *CAGeneratePDUImpl(code_t code, coap_list_t *options, const CAInfo_t info,
243 const char *payload, size_t payloadSize)
245 OIC_LOG(DEBUG, TAG, "IN");
247 coap_pdu_t *pdu = coap_new_pdu();
251 OIC_LOG(ERROR, TAG, "malloc failed");
255 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info.messageId);
257 if (0 == info.messageId)
259 /* initialize message id */
260 prng((uint8_t * ) &message_id, sizeof(message_id));
262 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
266 /* use saved message id */
267 message_id = info.messageId;
269 pdu->hdr->id = message_id;
270 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->hdr->id);
272 pdu->hdr->type = info.type;
273 pdu->hdr->code = COAP_RESPONSE_CODE(code);
275 if (info.token && CA_EMPTY != code)
277 uint32_t tokenLength = info.tokenLength;
278 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
279 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info.token, tokenLength);
281 int32_t ret = coap_add_token(pdu, tokenLength, (unsigned char *) info.token);
284 OIC_LOG(ERROR, TAG, "can't add token");
290 for (coap_list_t *opt = options; opt; opt = opt->next)
292 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
293 COAP_OPTION_DATA(*(coap_option *) opt->data));
294 coap_add_option(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
295 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
296 COAP_OPTION_DATA(*(coap_option *) opt->data));
302 OIC_LOG_V(DEBUG, TAG, "add data, payload:%s", payload);
303 coap_add_data(pdu, payloadSize, (const unsigned char *) payload);
306 OIC_LOG(DEBUG, TAG, "OUT");
310 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
312 OIC_LOG(DEBUG, TAG, "IN");
316 OIC_LOG(ERROR, TAG, "uriInfo is null");
317 return CA_STATUS_INVALID_PARAM;
320 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
324 OIC_LOG(ERROR, TAG, "optlist is null");
325 return CA_STATUS_INVALID_PARAM;
328 /* split arg into Uri-* options */
330 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
332 if (uri.port != COAP_DEFAULT_PORT)
334 unsigned char portbuf[CA_PORT_BUFFER_SIZE] = { 0 };
335 int ret = coap_insert(optlist,
336 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
337 coap_encode_var_bytes(portbuf, uri.port),
342 return CA_STATUS_INVALID_PARAM;
346 if (uri.path.s && uri.path.length)
348 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length, COAP_OPTION_URI_PATH,
350 if (CA_STATUS_OK != ret)
352 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
357 if (uri.query.s && uri.query.length)
359 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
361 if (CA_STATUS_OK != ret)
363 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
368 OIC_LOG(DEBUG, TAG, "OUT");
372 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
373 coap_list_t **optlist)
377 OIC_LOG(ERROR, TAG, "optlist is null");
378 return CA_STATUS_INVALID_PARAM;
381 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
383 // should never occur. Log just in case.
384 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
385 return CA_NOT_SUPPORTED;
387 else if (str && length)
389 unsigned char uriBuffer[CA_BUFSIZE] = { 0 };
390 unsigned char *pBuf = uriBuffer;
391 size_t buflen = sizeof(uriBuffer);
392 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
393 coap_split_query(str, length, pBuf, &buflen);
400 int ret = coap_insert(optlist,
401 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
402 COAP_OPT_VALUE(pBuf)),
406 return CA_STATUS_INVALID_PARAM;
409 size_t optSize = COAP_OPT_SIZE(pBuf);
410 if ((prevIdx + optSize) < buflen)
419 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
420 return CA_STATUS_FAILED;
425 OIC_LOG(ERROR, TAG, "str or length is not available");
426 return CA_STATUS_FAILED;
432 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t info, coap_list_t **optlist)
434 OIC_LOG(DEBUG, TAG, "IN");
436 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info.numOptions);
440 OIC_LOG(ERROR, TAG, "optlist is null");
441 return CA_STATUS_INVALID_PARAM;
444 for (uint32_t i = 0; i < info.numOptions; i++)
446 if(!(info.options + i))
448 OIC_LOG(ERROR, TAG, "options is not available");
449 return CA_STATUS_FAILED;
452 uint32_t id = (info.options + i)->optionID;
453 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
455 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
459 if ((info.options + i)->optionData && (info.options + i)->optionLength > 0)
461 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
462 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info.options + i)->optionData);
463 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info.options + i)->optionLength);
464 int ret = coap_insert(optlist,
465 CACreateNewOptionNode(id, (info.options + i)->optionLength,
466 (info.options + i)->optionData),
470 return CA_STATUS_INVALID_PARAM;
476 OIC_LOG(DEBUG, TAG, "OUT");
480 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const uint8_t *data)
482 OIC_LOG(DEBUG, TAG, "IN");
486 OIC_LOG(ERROR, TAG, "invalid pointer parameter");
490 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
493 OIC_LOG(ERROR, TAG, "Out of memory");
496 memset(option, 0, sizeof(coap_option) + length + 1);
498 COAP_OPTION_KEY(*option) = key;
499 COAP_OPTION_LENGTH(*option) = length;
500 memcpy(COAP_OPTION_DATA(*option), data, length);
502 /* we can pass NULL here as delete function since option is released automatically */
503 coap_list_t *node = coap_new_listnode(option, NULL);
507 OIC_LOG(ERROR, TAG, "node is NULL");
512 OIC_LOG(DEBUG, TAG, "OUT");
516 int CAOrderOpts(void *a, void *b)
518 OIC_LOG(DEBUG, TAG, "IN");
521 return a < b ? -1 : 1;
524 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
529 OIC_LOG(DEBUG, TAG, "OUT");
530 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
533 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
535 OIC_LOG(DEBUG, TAG, "IN");
539 while ((option = coap_option_next(&opt_iter)))
541 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type)
547 OIC_LOG(DEBUG, TAG, "OUT");
551 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, uint32_t *outCode, CAInfo_t *outInfo,
552 char *outUri, uint32_t buflen)
554 OIC_LOG(DEBUG, TAG, "IN");
556 if (!pdu || !outCode || !outInfo || !outUri)
558 OIC_LOG(ERROR, TAG, "NULL pointer param");
559 return CA_STATUS_INVALID_PARAM;
562 coap_opt_iterator_t opt_iter;
563 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL);
567 (*outCode) = (uint32_t) CA_RESPONSE_CODE(pdu->hdr->code);
570 // init HeaderOption list
571 uint32_t count = CAGetOptionCount(opt_iter);
572 memset(outInfo, 0, sizeof(*outInfo));
574 outInfo->numOptions = count;
577 outInfo->type = pdu->hdr->type;
580 outInfo->messageId = pdu->hdr->id;
584 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
585 if (NULL == outInfo->options)
587 OIC_LOG(ERROR, TAG, "Out of memory");
588 return CA_MEMORY_ALLOC_FAILED;
593 char optionResult[CA_MAX_URI_LENGTH] = {0};
595 uint32_t optionLength = 0;
596 bool isfirstsetflag = false;
597 bool isQueryBeingProcessed = false;
599 while ((option = coap_option_next(&opt_iter)))
601 char buf[COAP_MAX_PDU_SIZE] = {0};
602 if (CAGetOptionData((uint8_t *)(COAP_OPT_VALUE(option)),
603 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf)))
605 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
606 uint32_t bufLength = strlen(buf);
607 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
609 if (false == isfirstsetflag)
611 isfirstsetflag = true;
612 optionResult[optionLength] = '/';
614 // Make sure there is enough room in the optionResult buffer
615 if ((optionLength + bufLength) < sizeof(optionResult))
617 memcpy(&optionResult[optionLength], buf, bufLength);
618 optionLength += bufLength;
627 if (COAP_OPTION_URI_PATH == opt_iter.type)
629 // Make sure there is enough room in the optionResult buffer
630 if (optionLength < sizeof(optionResult))
632 optionResult[optionLength] = '/';
640 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
642 if (false == isQueryBeingProcessed)
644 // Make sure there is enough room in the optionResult buffer
645 if (optionLength < sizeof(optionResult))
647 optionResult[optionLength] = '?';
649 isQueryBeingProcessed = true;
658 // Make sure there is enough room in the optionResult buffer
659 if (optionLength < sizeof(optionResult))
661 optionResult[optionLength] = ';';
670 // Make sure there is enough room in the optionResult buffer
671 if ((optionLength + bufLength) < sizeof(optionResult))
673 memcpy(&optionResult[optionLength], buf, bufLength);
674 optionLength += bufLength;
686 uint32_t length = bufLength;
688 if (length <= CA_MAX_HEADER_OPTION_DATA_LENGTH)
690 outInfo->options[idx].optionID = opt_iter.type;
691 outInfo->options[idx].optionLength = length;
692 outInfo->options[idx].protocolID = CA_COAP_ID;
693 memcpy(outInfo->options[idx].optionData, buf, length);
702 if (pdu->hdr->token_length > 0)
704 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", pdu->hdr->token_length);
705 outInfo->token = (char *) OICMalloc(pdu->hdr->token_length);
706 if (NULL == outInfo->token)
708 OIC_LOG(ERROR, TAG, "Out of memory");
709 OICFree(outInfo->options);
710 return CA_MEMORY_ALLOC_FAILED;
712 memcpy(outInfo->token, pdu->hdr->token, pdu->hdr->token_length);
715 outInfo->tokenLength = pdu->hdr->token_length;
718 if (NULL != pdu->data)
720 uint32_t payloadLength = strlen((char*) pdu->data);
721 OIC_LOG(DEBUG, TAG, "inside pdu->data");
722 outInfo->payload = (char *) OICMalloc(payloadLength + 1);
723 if (NULL == outInfo->payload)
725 OIC_LOG(ERROR, TAG, "Out of memory");
726 OICFree(outInfo->options);
727 OICFree(outInfo->token);
728 return CA_MEMORY_ALLOC_FAILED;
730 memcpy(outInfo->payload, pdu->data, payloadLength);
731 outInfo->payload[payloadLength] = '\0';
734 uint32_t length = strlen(optionResult);
735 OIC_LOG_V(DEBUG, TAG, "URL length:%d,%d,%d", length, buflen, strlen(outUri));
736 if (buflen >= length)
738 memcpy(outUri, optionResult, length);
740 OIC_LOG_V(DEBUG, TAG, "made URL:%s\n", optionResult);
742 OIC_LOG_V(DEBUG, TAG, "made URL : %s, %s", optionResult, outUri);
745 OIC_LOG(DEBUG, TAG, "OUT");
749 OIC_LOG(ERROR, TAG, "buffer too small");
750 OICFree(outInfo->options);
751 return CA_STATUS_FAILED;
754 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo)
756 OIC_LOG(DEBUG, TAG, "IN");
759 OIC_LOG(ERROR, TAG, "pdu_hdr is null");
760 return CA_STATUS_INVALID_PARAM;
765 OIC_LOG(ERROR, TAG, "outInfo is null");
766 return CA_STATUS_INVALID_PARAM;
770 if (pdu_hdr->token_length > 0)
772 OIC_LOG_V(DEBUG, TAG, "token len:%d", pdu_hdr->token_length);
773 outInfo->token = (char *) OICMalloc(pdu_hdr->token_length);
774 if (NULL == outInfo->token)
776 OIC_LOG(ERROR, TAG, "out of memory");
777 return CA_MEMORY_ALLOC_FAILED;
779 memcpy(outInfo->token, pdu_hdr->token, pdu_hdr->token_length);
782 outInfo->tokenLength = pdu_hdr->token_length;
784 OIC_LOG(DEBUG, TAG, "OUT");
789 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
791 OIC_LOG(DEBUG, TAG, "IN");
795 OIC_LOG(ERROR, TAG, "invalid token pointer");
796 return CA_STATUS_INVALID_PARAM;
799 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
801 OIC_LOG(ERROR, TAG, "invalid token length");
802 return CA_STATUS_INVALID_PARAM;
814 OIC_LOG(ERROR, TAG, "seed is not made");
816 return CA_STATUS_FAILED;
826 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
829 OIC_LOG(ERROR, TAG, "Out of memory");
830 return CA_MEMORY_ALLOC_FAILED;
834 for (uint8_t index = 0; index < tokenLength; index++)
836 // use valid characters
838 temp[index] = rand() & 0x00FF;
840 temp[index] = random() & 0x00FF;
847 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
848 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
850 OIC_LOG(DEBUG, TAG, "OUT");
854 void CADestroyTokenInternal(CAToken_t token)
856 OIC_LOG(DEBUG, TAG, "IN");
858 OIC_LOG(DEBUG, TAG, "OUT");
861 void CADestroyInfo(CAInfo_t *info)
863 OIC_LOG(DEBUG, TAG, "IN");
867 OIC_LOG(DEBUG, TAG, "free options");
868 OICFree(info->options);
870 OIC_LOG(DEBUG, TAG, "free token");
871 OICFree(info->token);
873 OIC_LOG(DEBUG, TAG, "free payload");
874 OICFree(info->payload);
877 OIC_LOG(DEBUG, TAG, "OUT");
880 uint32_t CAGetOptionData(const uint8_t *data, uint32_t len, uint8_t *option, uint32_t buflen)
882 if (0 == buflen || 0 == len)
884 OIC_LOG(ERROR, TAG, "len 0");
888 if (NULL == data || NULL == option)
890 OIC_LOG(ERROR, TAG, "data/option NULL");
896 OIC_LOG(ERROR, TAG, "option buffer too small");
900 memcpy(option, data, len);
906 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
910 OIC_LOG(ERROR, TAG, "pdu is null");
911 return CA_MSG_NONCONFIRM;
914 // pdu minimum size is 4 byte.
915 if (size < CA_PDU_MIN_SIZE)
917 OIC_LOG(ERROR, TAG, "min size");
918 return CA_MSG_NONCONFIRM;
921 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
923 return (CAMessageType_t) hdr->type;
926 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
930 OIC_LOG(ERROR, TAG, "pdu is null");
934 // pdu minimum size is 4 byte.
935 if (size < CA_PDU_MIN_SIZE)
937 OIC_LOG(ERROR, TAG, "min size");
941 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
946 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
950 OIC_LOG(ERROR, TAG, "pdu is null");
954 // pdu minimum size is 4 byte.
955 if (size < CA_PDU_MIN_SIZE)
957 OIC_LOG(ERROR, TAG, "min size");
961 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
963 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);