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
41 #include "caprotocolmessage.h"
43 #include "oic_malloc.h"
44 #include "oic_string.h"
46 // ARM GCC compiler doesnt define srandom function.
47 #if defined(ARDUINO) && !defined(ARDUINO_ARCH_SAM)
48 #define HAVE_SRANDOM 1
51 #define TAG "CA_PRTCL_MSG"
54 * @def VERIFY_NON_NULL_RET
55 * @brief Macro to verify the validity of input argument
57 #define VERIFY_NON_NULL_RET(arg, log_tag, log_message,ret) \
59 OIC_LOG_V(ERROR, log_tag, "Invalid input:%s", log_message); \
63 #define CA_BUFSIZE (128)
64 #define CA_PDU_MIN_SIZE (4)
65 #define CA_PORT_BUFFER_SIZE (4)
67 static const char COAP_URI_HEADER[] = "coap://[::]/";
69 static uint32_t SEED = 0;
71 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, CARequestInfo_t *outReqInfo)
73 OIC_LOG(DEBUG, TAG, "IN");
75 if (NULL == pdu || NULL == outReqInfo)
77 OIC_LOG(ERROR, TAG, "parameter is null");
78 return CA_STATUS_INVALID_PARAM;
81 uint32_t code = CA_NOT_FOUND;
82 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outReqInfo->info));
83 outReqInfo->method = code;
85 OIC_LOG(DEBUG, TAG, "OUT");
89 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo)
91 OIC_LOG(DEBUG, TAG, "IN");
93 if (NULL == pdu || NULL == outResInfo)
95 OIC_LOG(ERROR, TAG, "parameter is null");
96 return CA_STATUS_INVALID_PARAM;
99 uint32_t code = CA_NOT_FOUND;
100 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outResInfo->info));
101 outResInfo->result = code;
103 OIC_LOG(DEBUG, TAG, "OUT");
107 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, CAErrorInfo_t *errorInfo)
109 OIC_LOG(DEBUG, TAG, "IN");
113 OIC_LOG(ERROR, TAG, "parameter is null");
114 return CA_STATUS_INVALID_PARAM;
118 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &errorInfo->info);
119 OIC_LOG(DEBUG, TAG, "OUT");
123 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info)
125 OIC_LOG(DEBUG, TAG, "IN");
127 coap_pdu_t *pdu = NULL;
129 // RESET have to use only 4byte (empty message)
130 // and ACKNOWLEDGE can use empty message when code is empty.
131 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
133 OIC_LOG(DEBUG, TAG, "code is empty");
134 if (!(pdu = CAGeneratePDUImpl((code_t) code, NULL, info, NULL, 0)))
136 OIC_LOG(ERROR, TAG, "pdu NULL");
142 coap_list_t *optlist = NULL;
144 if (CA_MSG_ACKNOWLEDGE != info->type)
146 const char *uri = info->resourceUri;
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 pdu = CAGeneratePDUImpl((code_t)code, optlist, info, info->payload, info->payloadSize);
194 OIC_LOG(ERROR, TAG, "pdu NULL");
195 coap_delete_list(optlist);
200 coap_delete_list(optlist);
203 // pdu print method : coap_show_pdu(pdu);
204 OIC_LOG(DEBUG, TAG, "OUT");
208 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode)
210 OIC_LOG(DEBUG, TAG, "IN");
214 OIC_LOG(ERROR, TAG, "data is null");
218 coap_pdu_t *outpdu = coap_new_pdu();
221 OIC_LOG(ERROR, TAG, "outpdu is null");
225 if (0 >= coap_pdu_parse((unsigned char *) data, length, outpdu))
227 OIC_LOG(ERROR, TAG, "pdu parse failed");
228 coap_delete_pdu(outpdu);
234 (*outCode) = (uint32_t) CA_RESPONSE_CODE(outpdu->hdr->code);
237 OIC_LOG(DEBUG, TAG, "OUT");
241 coap_pdu_t *CAGeneratePDUImpl(code_t code, coap_list_t *options, const CAInfo_t *info,
242 const uint8_t *payload, size_t payloadSize)
244 OIC_LOG(DEBUG, TAG, "IN");
245 VERIFY_NON_NULL_RET(info, TAG, "info is NULL", NULL);
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 coap_add_data(pdu, payloadSize, (const unsigned char *) payload);
305 OIC_LOG(DEBUG, TAG, "OUT");
309 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
311 OIC_LOG(DEBUG, TAG, "IN");
315 OIC_LOG(ERROR, TAG, "uriInfo is null");
316 return CA_STATUS_INVALID_PARAM;
319 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
323 OIC_LOG(ERROR, TAG, "optlist is null");
324 return CA_STATUS_INVALID_PARAM;
327 /* split arg into Uri-* options */
329 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
331 if (uri.port != COAP_DEFAULT_PORT)
333 unsigned char portbuf[CA_PORT_BUFFER_SIZE] = { 0 };
334 int ret = coap_insert(optlist,
335 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
336 coap_encode_var_bytes(portbuf, uri.port),
341 return CA_STATUS_INVALID_PARAM;
345 if (uri.path.s && uri.path.length)
347 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
348 COAP_OPTION_URI_PATH, optlist);
349 if (CA_STATUS_OK != ret)
351 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
356 if (uri.query.s && uri.query.length)
358 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
360 if (CA_STATUS_OK != ret)
362 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
367 OIC_LOG(DEBUG, TAG, "OUT");
371 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
372 coap_list_t **optlist)
376 OIC_LOG(ERROR, TAG, "optlist is null");
377 return CA_STATUS_INVALID_PARAM;
380 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
382 // should never occur. Log just in case.
383 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
384 return CA_NOT_SUPPORTED;
386 else if (str && length)
388 unsigned char uriBuffer[CA_BUFSIZE] = { 0 };
389 unsigned char *pBuf = uriBuffer;
390 size_t buflen = sizeof(uriBuffer);
391 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
392 coap_split_query(str, length, pBuf, &buflen);
399 int ret = coap_insert(optlist,
400 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
401 (char *)COAP_OPT_VALUE(pBuf)),
405 return CA_STATUS_INVALID_PARAM;
408 size_t optSize = COAP_OPT_SIZE(pBuf);
409 if ((prevIdx + optSize) < buflen)
418 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
419 return CA_STATUS_FAILED;
424 OIC_LOG(ERROR, TAG, "str or length is not available");
425 return CA_STATUS_FAILED;
431 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
433 OIC_LOG(DEBUG, TAG, "IN");
434 VERIFY_NON_NULL_RET(info, TAG, "info is NULL", CA_STATUS_INVALID_PARAM);
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 char *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)
553 OIC_LOG(DEBUG, TAG, "IN");
555 if (!pdu || !outCode || !outInfo)
557 OIC_LOG(ERROR, TAG, "NULL pointer param");
558 return CA_STATUS_INVALID_PARAM;
561 coap_opt_iterator_t opt_iter;
562 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL);
566 (*outCode) = (uint32_t) CA_RESPONSE_CODE(pdu->hdr->code);
569 // init HeaderOption list
570 uint32_t count = CAGetOptionCount(opt_iter);
571 memset(outInfo, 0, sizeof(*outInfo));
573 outInfo->numOptions = count;
576 outInfo->type = pdu->hdr->type;
579 outInfo->messageId = pdu->hdr->id;
583 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
584 if (NULL == outInfo->options)
586 OIC_LOG(ERROR, TAG, "Out of memory");
587 return CA_MEMORY_ALLOC_FAILED;
592 char optionResult[CA_MAX_URI_LENGTH] = {0};
594 uint32_t optionLength = 0;
595 bool isfirstsetflag = false;
596 bool isQueryBeingProcessed = false;
598 while ((option = coap_option_next(&opt_iter)))
600 char buf[COAP_MAX_PDU_SIZE] = {0};
601 if (CAGetOptionData((uint8_t *)(COAP_OPT_VALUE(option)),
602 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf)))
604 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
605 uint32_t bufLength = strlen(buf);
606 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
608 if (false == isfirstsetflag)
610 isfirstsetflag = true;
611 optionResult[optionLength] = '/';
613 // Make sure there is enough room in the optionResult buffer
614 if ((optionLength + bufLength) < sizeof(optionResult))
616 memcpy(&optionResult[optionLength], buf, bufLength);
617 optionLength += bufLength;
626 if (COAP_OPTION_URI_PATH == opt_iter.type)
628 // Make sure there is enough room in the optionResult buffer
629 if (optionLength < sizeof(optionResult))
631 optionResult[optionLength] = '/';
639 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
641 if (false == isQueryBeingProcessed)
643 // Make sure there is enough room in the optionResult buffer
644 if (optionLength < sizeof(optionResult))
646 optionResult[optionLength] = '?';
648 isQueryBeingProcessed = true;
657 // Make sure there is enough room in the optionResult buffer
658 if (optionLength < sizeof(optionResult))
660 optionResult[optionLength] = ';';
669 // Make sure there is enough room in the optionResult buffer
670 if ((optionLength + bufLength) < sizeof(optionResult))
672 memcpy(&optionResult[optionLength], buf, bufLength);
673 optionLength += bufLength;
685 uint32_t length = bufLength;
687 if (length <= CA_MAX_HEADER_OPTION_DATA_LENGTH)
689 outInfo->options[idx].optionID = opt_iter.type;
690 outInfo->options[idx].optionLength = length;
691 outInfo->options[idx].protocolID = CA_COAP_ID;
692 memcpy(outInfo->options[idx].optionData, buf, length);
701 if (pdu->hdr->token_length > 0)
703 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", pdu->hdr->token_length);
704 outInfo->token = (char *) OICMalloc(pdu->hdr->token_length);
705 if (NULL == outInfo->token)
707 OIC_LOG(ERROR, TAG, "Out of memory");
708 OICFree(outInfo->options);
709 return CA_MEMORY_ALLOC_FAILED;
711 memcpy(outInfo->token, pdu->hdr->token, pdu->hdr->token_length);
714 outInfo->tokenLength = pdu->hdr->token_length;
719 if (coap_get_data(pdu, &dataSize, &data))
721 OIC_LOG(DEBUG, TAG, "inside pdu->data");
722 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
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, dataSize);
731 outInfo->payloadSize = dataSize;
734 uint32_t length = strlen(optionResult);
735 OIC_LOG_V(DEBUG, TAG, "URL length:%d", length);
737 outInfo->resourceUri = OICMalloc(length + 1);
738 if (!outInfo->resourceUri)
740 OIC_LOG(ERROR, TAG, "Out of memory");
741 OICFree(outInfo->options);
742 OICFree(outInfo->token);
743 return CA_MEMORY_ALLOC_FAILED;
745 memcpy(outInfo->resourceUri, optionResult, length);
746 outInfo->resourceUri[length] = '\0';
747 OIC_LOG_V(DEBUG, TAG, "made URL : %s, %s", optionResult, outInfo->resourceUri);
749 OIC_LOG(DEBUG, TAG, "OUT");
753 OIC_LOG(ERROR, TAG, "buffer too small");
754 OICFree(outInfo->options);
755 return CA_STATUS_FAILED;
758 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo)
760 OIC_LOG(DEBUG, TAG, "IN");
763 OIC_LOG(ERROR, TAG, "pdu_hdr is null");
764 return CA_STATUS_INVALID_PARAM;
769 OIC_LOG(ERROR, TAG, "outInfo is null");
770 return CA_STATUS_INVALID_PARAM;
774 if (pdu_hdr->token_length > 0)
776 OIC_LOG_V(DEBUG, TAG, "token len:%d", pdu_hdr->token_length);
777 outInfo->token = (char *) OICMalloc(pdu_hdr->token_length);
778 if (NULL == outInfo->token)
780 OIC_LOG(ERROR, TAG, "out of memory");
781 return CA_MEMORY_ALLOC_FAILED;
783 memcpy(outInfo->token, pdu_hdr->token, pdu_hdr->token_length);
786 outInfo->tokenLength = pdu_hdr->token_length;
788 OIC_LOG(DEBUG, TAG, "OUT");
793 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
795 OIC_LOG(DEBUG, TAG, "IN");
799 OIC_LOG(ERROR, TAG, "invalid token pointer");
800 return CA_STATUS_INVALID_PARAM;
803 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
805 OIC_LOG(ERROR, TAG, "invalid token length");
806 return CA_STATUS_INVALID_PARAM;
818 OIC_LOG(ERROR, TAG, "seed is not made");
820 return CA_STATUS_FAILED;
830 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
833 OIC_LOG(ERROR, TAG, "Out of memory");
834 return CA_MEMORY_ALLOC_FAILED;
838 for (uint8_t index = 0; index < tokenLength; index++)
840 // use valid characters
842 temp[index] = rand() & 0x00FF;
844 temp[index] = random() & 0x00FF;
851 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
852 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
854 OIC_LOG(DEBUG, TAG, "OUT");
858 void CADestroyTokenInternal(CAToken_t token)
860 OIC_LOG(DEBUG, TAG, "IN");
862 OIC_LOG(DEBUG, TAG, "OUT");
865 void CADestroyInfo(CAInfo_t *info)
867 OIC_LOG(DEBUG, TAG, "IN");
871 OIC_LOG(DEBUG, TAG, "free options");
872 OICFree(info->options);
874 OIC_LOG(DEBUG, TAG, "free token");
875 OICFree(info->token);
877 OIC_LOG(DEBUG, TAG, "free payload");
878 OICFree(info->payload);
881 OIC_LOG(DEBUG, TAG, "OUT");
884 uint32_t CAGetOptionData(const uint8_t *data, uint32_t len, uint8_t *option, uint32_t buflen)
886 if (0 == buflen || 0 == len)
888 OIC_LOG(ERROR, TAG, "len 0");
892 if (NULL == data || NULL == option)
894 OIC_LOG(ERROR, TAG, "data/option NULL");
900 OIC_LOG(ERROR, TAG, "option buffer too small");
904 memcpy(option, data, len);
910 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
914 OIC_LOG(ERROR, TAG, "pdu is null");
915 return CA_MSG_NONCONFIRM;
918 // pdu minimum size is 4 byte.
919 if (size < CA_PDU_MIN_SIZE)
921 OIC_LOG(ERROR, TAG, "min size");
922 return CA_MSG_NONCONFIRM;
925 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
927 return (CAMessageType_t) hdr->type;
930 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
934 OIC_LOG(ERROR, TAG, "pdu is null");
938 // pdu minimum size is 4 byte.
939 if (size < CA_PDU_MIN_SIZE)
941 OIC_LOG(ERROR, TAG, "min size");
945 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
950 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
954 OIC_LOG(ERROR, TAG, "pdu is null");
958 // pdu minimum size is 4 byte.
959 if (size < CA_PDU_MIN_SIZE)
961 OIC_LOG(ERROR, TAG, "min size");
965 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
967 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);