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
40 #include "caprotocolmessage.h"
42 #include "oic_malloc.h"
43 #include "oic_string.h"
45 // ARM GCC compiler doesnt define srandom function.
46 #if defined(ARDUINO) && !defined(ARDUINO_ARCH_SAM)
47 #define HAVE_SRANDOM 1
50 #define TAG "CA_PRTCL_MSG"
53 * @def VERIFY_NON_NULL_RET
54 * @brief Macro to verify the validity of input argument
56 #define VERIFY_NON_NULL_RET(arg, log_tag, log_message,ret) \
58 OIC_LOG_V(ERROR, log_tag, "Invalid input:%s", log_message); \
62 #define CA_BUFSIZE (128)
63 #define CA_PDU_MIN_SIZE (4)
64 #define CA_PORT_BUFFER_SIZE (4)
66 static const char COAP_URI_HEADER[] = "coap://[::]/";
68 static unsigned int SEED = 0;
70 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, CARequestInfo_t *outReqInfo)
72 OIC_LOG(DEBUG, TAG, "IN");
74 if (NULL == pdu || NULL == outReqInfo)
76 OIC_LOG(ERROR, TAG, "parameter is null");
77 return CA_STATUS_INVALID_PARAM;
80 uint32_t code = CA_NOT_FOUND;
81 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outReqInfo->info));
82 outReqInfo->method = code;
84 OIC_LOG(DEBUG, TAG, "OUT");
88 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo)
90 OIC_LOG(DEBUG, TAG, "IN");
92 if (NULL == pdu || NULL == outResInfo)
94 OIC_LOG(ERROR, TAG, "parameter is null");
95 return CA_STATUS_INVALID_PARAM;
98 uint32_t code = CA_NOT_FOUND;
99 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &(outResInfo->info));
100 outResInfo->result = code;
102 OIC_LOG(DEBUG, TAG, "OUT");
106 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, CAErrorInfo_t *errorInfo)
108 OIC_LOG(DEBUG, TAG, "IN");
112 OIC_LOG(ERROR, TAG, "parameter is null");
113 return CA_STATUS_INVALID_PARAM;
117 CAResult_t ret = CAGetInfoFromPDU(pdu, &code, &errorInfo->info);
118 OIC_LOG(DEBUG, TAG, "OUT");
122 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info, const CAEndpoint_t *endpoint)
124 OIC_LOG(DEBUG, TAG, "IN");
126 coap_pdu_t *pdu = NULL;
128 // RESET have to use only 4byte (empty message)
129 // and ACKNOWLEDGE can use empty message when code is empty.
130 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
132 OIC_LOG(DEBUG, TAG, "code is empty");
133 if (!(pdu = CAGeneratePDUImpl((code_t) code, NULL, info, endpoint)))
135 OIC_LOG(ERROR, TAG, "pdu NULL");
141 coap_list_t *optlist = NULL;
143 if (CA_MSG_ACKNOWLEDGE != info->type)
145 const char *uri = info->resourceUri;
148 OIC_LOG(ERROR, TAG, "uri NULL");
152 uint32_t length = strlen(uri);
153 if (CA_MAX_URI_LENGTH < length)
155 OIC_LOG(ERROR, TAG, "URI len err");
159 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
160 char *coapUri = (char *) OICCalloc(1, uriLength);
163 OIC_LOG(ERROR, TAG, "out of memory");
166 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
167 OICStrcat(coapUri, uriLength, uri);
169 // parsing options in URI
170 CAResult_t res = CAParseURI(coapUri, &optlist);
171 if (CA_STATUS_OK != res)
175 coap_delete_list(optlist);
183 // parsing options in HeadOption
184 CAResult_t ret = CAParseHeadOption(code, info, &optlist);
185 if (CA_STATUS_OK != ret)
187 coap_delete_list(optlist);
191 pdu = CAGeneratePDUImpl((code_t) code, optlist, info, endpoint);
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 CAEndpoint_t *endpoint)
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));
300 bool enabledPayload = false;
302 enabledPayload = true;
305 if (enabledPayload || CA_ADAPTER_GATT_BTLE == endpoint->adapter)
307 if (NULL != info->payload && 0 < info->payloadSize)
309 OIC_LOG(DEBUG, TAG, "payload is added");
310 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
314 OIC_LOG(DEBUG, TAG, "OUT");
318 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
320 OIC_LOG(DEBUG, TAG, "IN");
324 OIC_LOG(ERROR, TAG, "uriInfo is null");
325 return CA_STATUS_INVALID_PARAM;
328 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
332 OIC_LOG(ERROR, TAG, "optlist is null");
333 return CA_STATUS_INVALID_PARAM;
336 /* split arg into Uri-* options */
338 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
340 if (uri.port != COAP_DEFAULT_PORT)
342 unsigned char portbuf[CA_PORT_BUFFER_SIZE] = { 0 };
343 int ret = coap_insert(optlist,
344 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
345 coap_encode_var_bytes(portbuf, uri.port),
350 return CA_STATUS_INVALID_PARAM;
354 if (uri.path.s && uri.path.length)
356 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
357 COAP_OPTION_URI_PATH, optlist);
358 if (CA_STATUS_OK != ret)
360 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
365 if (uri.query.s && uri.query.length)
367 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
369 if (CA_STATUS_OK != ret)
371 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
376 OIC_LOG(DEBUG, TAG, "OUT");
380 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
381 coap_list_t **optlist)
385 OIC_LOG(ERROR, TAG, "optlist is null");
386 return CA_STATUS_INVALID_PARAM;
389 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
391 // should never occur. Log just in case.
392 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
393 return CA_NOT_SUPPORTED;
395 else if (str && length)
397 unsigned char uriBuffer[CA_BUFSIZE] = { 0 };
398 unsigned char *pBuf = uriBuffer;
399 size_t buflen = sizeof(uriBuffer);
400 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
401 coap_split_query(str, length, pBuf, &buflen);
408 int ret = coap_insert(optlist,
409 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
410 (char *)COAP_OPT_VALUE(pBuf)),
414 return CA_STATUS_INVALID_PARAM;
417 size_t optSize = COAP_OPT_SIZE(pBuf);
418 if ((prevIdx + optSize) < buflen)
427 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
428 return CA_STATUS_FAILED;
433 OIC_LOG(ERROR, TAG, "str or length is not available");
434 return CA_STATUS_FAILED;
440 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
443 OIC_LOG(DEBUG, TAG, "IN");
444 VERIFY_NON_NULL_RET(info, TAG, "info is NULL", CA_STATUS_INVALID_PARAM);
446 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
450 OIC_LOG(ERROR, TAG, "optlist is null");
451 return CA_STATUS_INVALID_PARAM;
454 for (uint32_t i = 0; i < info->numOptions; i++)
456 if(!(info->options + i))
458 OIC_LOG(ERROR, TAG, "options is not available");
459 return CA_STATUS_FAILED;
462 uint32_t id = (info->options + i)->optionID;
463 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
465 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
469 if ((info->options + i)->optionData && (info->options + i)->optionLength > 0)
471 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
472 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
473 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
474 int ret = coap_insert(optlist,
475 CACreateNewOptionNode(id, (info->options + i)->optionLength,
476 (info->options + i)->optionData),
480 return CA_STATUS_INVALID_PARAM;
486 OIC_LOG(DEBUG, TAG, "OUT");
490 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
492 OIC_LOG(DEBUG, TAG, "IN");
496 OIC_LOG(ERROR, TAG, "invalid pointer parameter");
500 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
503 OIC_LOG(ERROR, TAG, "Out of memory");
506 memset(option, 0, sizeof(coap_option) + length + 1);
508 COAP_OPTION_KEY(*option) = key;
509 COAP_OPTION_LENGTH(*option) = length;
510 memcpy(COAP_OPTION_DATA(*option), data, length);
512 /* we can pass NULL here as delete function since option is released automatically */
513 coap_list_t *node = coap_new_listnode(option, NULL);
517 OIC_LOG(ERROR, TAG, "node is NULL");
522 OIC_LOG(DEBUG, TAG, "OUT");
526 int CAOrderOpts(void *a, void *b)
528 OIC_LOG(DEBUG, TAG, "IN");
531 return a < b ? -1 : 1;
534 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
539 OIC_LOG(DEBUG, TAG, "OUT");
540 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
543 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
545 OIC_LOG(DEBUG, TAG, "IN");
549 while ((option = coap_option_next(&opt_iter)))
551 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
552 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
553 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type)
559 OIC_LOG(DEBUG, TAG, "OUT");
563 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, uint32_t *outCode, CAInfo_t *outInfo)
565 OIC_LOG(DEBUG, TAG, "IN");
567 if (!pdu || !outCode || !outInfo)
569 OIC_LOG(ERROR, TAG, "NULL pointer param");
570 return CA_STATUS_INVALID_PARAM;
573 coap_opt_iterator_t opt_iter;
574 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL);
578 (*outCode) = (uint32_t) CA_RESPONSE_CODE(pdu->hdr->code);
581 // init HeaderOption list
582 uint32_t count = CAGetOptionCount(opt_iter);
583 memset(outInfo, 0, sizeof(*outInfo));
585 outInfo->numOptions = count;
588 outInfo->type = pdu->hdr->type;
591 outInfo->messageId = pdu->hdr->id;
595 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
596 if (NULL == outInfo->options)
598 OIC_LOG(ERROR, TAG, "Out of memory");
599 return CA_MEMORY_ALLOC_FAILED;
604 char optionResult[CA_MAX_URI_LENGTH] = {0};
606 uint32_t optionLength = 0;
607 bool isfirstsetflag = false;
608 bool isQueryBeingProcessed = false;
610 while ((option = coap_option_next(&opt_iter)))
612 char buf[COAP_MAX_PDU_SIZE] = {0};
613 if (CAGetOptionData((uint8_t *)(COAP_OPT_VALUE(option)),
614 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf)))
616 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
617 uint32_t bufLength = strlen(buf);
618 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
620 if (false == isfirstsetflag)
622 isfirstsetflag = true;
623 optionResult[optionLength] = '/';
625 // Make sure there is enough room in the optionResult buffer
626 if ((optionLength + bufLength) < sizeof(optionResult))
628 memcpy(&optionResult[optionLength], buf, bufLength);
629 optionLength += bufLength;
638 if (COAP_OPTION_URI_PATH == opt_iter.type)
640 // Make sure there is enough room in the optionResult buffer
641 if (optionLength < sizeof(optionResult))
643 optionResult[optionLength] = '/';
651 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
653 if (false == isQueryBeingProcessed)
655 // Make sure there is enough room in the optionResult buffer
656 if (optionLength < sizeof(optionResult))
658 optionResult[optionLength] = '?';
660 isQueryBeingProcessed = true;
669 // Make sure there is enough room in the optionResult buffer
670 if (optionLength < sizeof(optionResult))
672 optionResult[optionLength] = ';';
681 // Make sure there is enough room in the optionResult buffer
682 if ((optionLength + bufLength) < sizeof(optionResult))
684 memcpy(&optionResult[optionLength], buf, bufLength);
685 optionLength += bufLength;
693 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
694 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
696 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
702 uint32_t length = bufLength;
704 if (length <= CA_MAX_HEADER_OPTION_DATA_LENGTH)
706 outInfo->options[idx].optionID = opt_iter.type;
707 outInfo->options[idx].optionLength = length;
708 outInfo->options[idx].protocolID = CA_COAP_ID;
709 memcpy(outInfo->options[idx].optionData, buf, length);
718 if (pdu->hdr->token_length > 0)
720 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", pdu->hdr->token_length);
721 outInfo->token = (char *) OICMalloc(pdu->hdr->token_length);
722 if (NULL == outInfo->token)
724 OIC_LOG(ERROR, TAG, "Out of memory");
725 OICFree(outInfo->options);
726 return CA_MEMORY_ALLOC_FAILED;
728 memcpy(outInfo->token, pdu->hdr->token, pdu->hdr->token_length);
731 outInfo->tokenLength = pdu->hdr->token_length;
736 if (coap_get_data(pdu, &dataSize, &data))
738 OIC_LOG(DEBUG, TAG, "inside pdu->data");
739 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
740 if (NULL == outInfo->payload)
742 OIC_LOG(ERROR, TAG, "Out of memory");
743 OICFree(outInfo->options);
744 OICFree(outInfo->token);
745 return CA_MEMORY_ALLOC_FAILED;
747 memcpy(outInfo->payload, pdu->data, dataSize);
748 outInfo->payloadSize = dataSize;
751 if (optionResult[0] != '\0')
753 OIC_LOG_V(DEBUG, TAG, "URL length:%d", strlen(optionResult));
754 outInfo->resourceUri = OICStrdup(optionResult);
755 if (!outInfo->resourceUri)
757 OIC_LOG(ERROR, TAG, "Out of memory");
758 OICFree(outInfo->options);
759 OICFree(outInfo->token);
760 return CA_MEMORY_ALLOC_FAILED;
764 OIC_LOG(DEBUG, TAG, "OUT");
768 OIC_LOG(ERROR, TAG, "buffer too small");
769 OICFree(outInfo->options);
770 return CA_STATUS_FAILED;
773 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo)
775 OIC_LOG(DEBUG, TAG, "IN");
778 OIC_LOG(ERROR, TAG, "pdu_hdr is null");
779 return CA_STATUS_INVALID_PARAM;
784 OIC_LOG(ERROR, TAG, "outInfo is null");
785 return CA_STATUS_INVALID_PARAM;
789 if (pdu_hdr->token_length > 0)
791 OIC_LOG_V(DEBUG, TAG, "token len:%d", pdu_hdr->token_length);
792 outInfo->token = (char *) OICMalloc(pdu_hdr->token_length);
793 if (NULL == outInfo->token)
795 OIC_LOG(ERROR, TAG, "out of memory");
796 return CA_MEMORY_ALLOC_FAILED;
798 memcpy(outInfo->token, pdu_hdr->token, pdu_hdr->token_length);
801 outInfo->tokenLength = pdu_hdr->token_length;
803 OIC_LOG(DEBUG, TAG, "OUT");
808 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
810 OIC_LOG(DEBUG, TAG, "IN");
814 OIC_LOG(ERROR, TAG, "invalid token pointer");
815 return CA_STATUS_INVALID_PARAM;
818 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
820 OIC_LOG(ERROR, TAG, "invalid token length");
821 return CA_STATUS_INVALID_PARAM;
831 if (SEED == (unsigned int)((time_t)-1))
833 OIC_LOG(ERROR, TAG, "seed is not made");
835 return CA_STATUS_FAILED;
845 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
848 OIC_LOG(ERROR, TAG, "Out of memory");
849 return CA_MEMORY_ALLOC_FAILED;
853 for (uint8_t index = 0; index < tokenLength; index++)
855 // use valid characters
857 temp[index] = rand() & 0x00FF;
859 temp[index] = random() & 0x00FF;
866 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
867 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
869 OIC_LOG(DEBUG, TAG, "OUT");
873 void CADestroyTokenInternal(CAToken_t token)
875 OIC_LOG(DEBUG, TAG, "IN");
877 OIC_LOG(DEBUG, TAG, "OUT");
880 void CADestroyInfo(CAInfo_t *info)
882 OIC_LOG(DEBUG, TAG, "IN");
886 OIC_LOG(DEBUG, TAG, "free options");
887 OICFree(info->options);
889 OIC_LOG(DEBUG, TAG, "free token");
890 OICFree(info->token);
892 OIC_LOG(DEBUG, TAG, "free payload");
893 OICFree(info->payload);
896 OIC_LOG(DEBUG, TAG, "OUT");
899 uint32_t CAGetOptionData(const uint8_t *data, uint32_t len, uint8_t *option, uint32_t buflen)
901 if (0 == buflen || 0 == len)
903 OIC_LOG(ERROR, TAG, "len 0");
907 if (NULL == data || NULL == option)
909 OIC_LOG(ERROR, TAG, "data/option NULL");
915 OIC_LOG(ERROR, TAG, "option buffer too small");
919 memcpy(option, data, len);
925 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
929 OIC_LOG(ERROR, TAG, "pdu is null");
930 return CA_MSG_NONCONFIRM;
933 // pdu minimum size is 4 byte.
934 if (size < CA_PDU_MIN_SIZE)
936 OIC_LOG(ERROR, TAG, "min size");
937 return CA_MSG_NONCONFIRM;
940 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
942 return (CAMessageType_t) hdr->type;
945 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
949 OIC_LOG(ERROR, TAG, "pdu is null");
953 // pdu minimum size is 4 byte.
954 if (size < CA_PDU_MIN_SIZE)
956 OIC_LOG(ERROR, TAG, "min size");
960 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
965 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
969 OIC_LOG(ERROR, TAG, "pdu is null");
973 // pdu minimum size is 4 byte.
974 if (size < CA_PDU_MIN_SIZE)
976 OIC_LOG(ERROR, TAG, "min size");
980 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
982 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);