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 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
127 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
129 coap_pdu_t *pdu = NULL;
131 // RESET have to use only 4byte (empty message)
132 // and ACKNOWLEDGE can use empty message when code is empty.
133 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
135 OIC_LOG(DEBUG, TAG, "code is empty");
136 if (!(pdu = CAGeneratePDUImpl((code_t) code, NULL, info, endpoint)))
138 OIC_LOG(ERROR, TAG, "pdu NULL");
144 coap_list_t *optlist = NULL;
146 if (CA_MSG_ACKNOWLEDGE != info->type)
148 const char *uri = info->resourceUri;
151 OIC_LOG(ERROR, TAG, "uri NULL");
155 uint32_t length = strlen(uri);
156 if (CA_MAX_URI_LENGTH < length)
158 OIC_LOG(ERROR, TAG, "URI len err");
162 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
163 char *coapUri = (char *) OICCalloc(1, uriLength);
166 OIC_LOG(ERROR, TAG, "out of memory");
169 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
170 OICStrcat(coapUri, uriLength, uri);
172 // parsing options in URI
173 CAResult_t res = CAParseURI(coapUri, &optlist);
174 if (CA_STATUS_OK != res)
178 coap_delete_list(optlist);
186 // parsing options in HeadOption
187 CAResult_t ret = CAParseHeadOption(code, info, &optlist);
188 if (CA_STATUS_OK != ret)
190 coap_delete_list(optlist);
194 pdu = CAGeneratePDUImpl((code_t) code, optlist, info, endpoint);
197 OIC_LOG(ERROR, TAG, "pdu NULL");
198 coap_delete_list(optlist);
203 coap_delete_list(optlist);
206 // pdu print method : coap_show_pdu(pdu);
207 OIC_LOG(DEBUG, TAG, "OUT");
211 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode)
213 OIC_LOG(DEBUG, TAG, "IN");
217 OIC_LOG(ERROR, TAG, "data is null");
221 coap_pdu_t *outpdu = coap_new_pdu();
224 OIC_LOG(ERROR, TAG, "outpdu is null");
228 if (0 >= coap_pdu_parse((unsigned char *) data, length, outpdu))
230 OIC_LOG(ERROR, TAG, "pdu parse failed");
231 coap_delete_pdu(outpdu);
235 if (outpdu->hdr->version != COAP_DEFAULT_VERSION)
237 OIC_LOG_V(ERROR, TAG, "coap version is not available : %d",
238 outpdu->hdr->version);
239 coap_delete_pdu(outpdu);
243 if (outpdu->hdr->token_length > CA_MAX_TOKEN_LEN)
245 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
246 outpdu->hdr->token_length);
247 coap_delete_pdu(outpdu);
253 (*outCode) = (uint32_t) CA_RESPONSE_CODE(outpdu->hdr->code);
256 OIC_LOG(DEBUG, TAG, "OUT");
260 coap_pdu_t *CAGeneratePDUImpl(code_t code, coap_list_t *options, const CAInfo_t *info,
261 const CAEndpoint_t *endpoint)
263 OIC_LOG(DEBUG, TAG, "IN");
264 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
265 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
267 coap_pdu_t *pdu = coap_new_pdu();
271 OIC_LOG(ERROR, TAG, "malloc failed");
275 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info->messageId);
277 if (0 == info->messageId)
279 /* initialize message id */
280 prng((uint8_t * ) &message_id, sizeof(message_id));
282 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
286 /* use saved message id */
287 message_id = info->messageId;
289 pdu->hdr->id = message_id;
290 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->hdr->id);
292 pdu->hdr->type = info->type;
293 pdu->hdr->code = COAP_RESPONSE_CODE(code);
295 if (info->token && CA_EMPTY != code)
297 uint32_t tokenLength = info->tokenLength;
298 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
299 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info->token, tokenLength);
301 int32_t ret = coap_add_token(pdu, tokenLength, (unsigned char *)info->token);
304 OIC_LOG(ERROR, TAG, "can't add token");
310 for (coap_list_t *opt = options; opt; opt = opt->next)
312 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
313 COAP_OPTION_DATA(*(coap_option *) opt->data));
314 coap_add_option(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
315 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
316 COAP_OPTION_DATA(*(coap_option *) opt->data));
320 bool enabledPayload = false;
322 enabledPayload = true;
325 if (enabledPayload || CA_ADAPTER_GATT_BTLE == endpoint->adapter)
327 if (NULL != info->payload && 0 < info->payloadSize)
329 OIC_LOG(DEBUG, TAG, "payload is added");
330 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
334 OIC_LOG(DEBUG, TAG, "OUT");
338 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
340 OIC_LOG(DEBUG, TAG, "IN");
344 OIC_LOG(ERROR, TAG, "uriInfo is null");
345 return CA_STATUS_INVALID_PARAM;
348 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
352 OIC_LOG(ERROR, TAG, "optlist is null");
353 return CA_STATUS_INVALID_PARAM;
356 /* split arg into Uri-* options */
358 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
360 if (uri.port != COAP_DEFAULT_PORT)
362 unsigned char portbuf[CA_PORT_BUFFER_SIZE] = { 0 };
363 int ret = coap_insert(optlist,
364 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
365 coap_encode_var_bytes(portbuf, uri.port),
370 return CA_STATUS_INVALID_PARAM;
374 if (uri.path.s && uri.path.length)
376 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
377 COAP_OPTION_URI_PATH, optlist);
378 if (CA_STATUS_OK != ret)
380 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
385 if (uri.query.s && uri.query.length)
387 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
389 if (CA_STATUS_OK != ret)
391 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
396 OIC_LOG(DEBUG, TAG, "OUT");
400 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
401 coap_list_t **optlist)
405 OIC_LOG(ERROR, TAG, "optlist is null");
406 return CA_STATUS_INVALID_PARAM;
409 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
411 // should never occur. Log just in case.
412 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
413 return CA_NOT_SUPPORTED;
415 else if (str && length)
417 unsigned char uriBuffer[CA_BUFSIZE] = { 0 };
418 unsigned char *pBuf = uriBuffer;
419 size_t buflen = sizeof(uriBuffer);
420 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
421 coap_split_query(str, length, pBuf, &buflen);
428 int ret = coap_insert(optlist,
429 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
430 (char *)COAP_OPT_VALUE(pBuf)),
434 return CA_STATUS_INVALID_PARAM;
437 size_t optSize = COAP_OPT_SIZE(pBuf);
438 if ((prevIdx + optSize) < buflen)
447 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
448 return CA_STATUS_FAILED;
453 OIC_LOG(ERROR, TAG, "str or length is not available");
454 return CA_STATUS_FAILED;
460 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
463 OIC_LOG(DEBUG, TAG, "IN");
464 VERIFY_NON_NULL_RET(info, TAG, "info is NULL", CA_STATUS_INVALID_PARAM);
466 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
470 OIC_LOG(ERROR, TAG, "optlist is null");
471 return CA_STATUS_INVALID_PARAM;
474 for (uint32_t i = 0; i < info->numOptions; i++)
476 if(!(info->options + i))
478 OIC_LOG(ERROR, TAG, "options is not available");
479 return CA_STATUS_FAILED;
482 uint32_t id = (info->options + i)->optionID;
483 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
485 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
489 if ((info->options + i)->optionData && (info->options + i)->optionLength > 0)
491 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
492 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
493 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
494 int ret = coap_insert(optlist,
495 CACreateNewOptionNode(id, (info->options + i)->optionLength,
496 (info->options + i)->optionData),
500 return CA_STATUS_INVALID_PARAM;
506 // insert one extra header with the payload format if applicable.
507 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
509 coap_list_t* node = NULL;
510 uint8_t buf[3] = {0};
511 switch (info->payloadFormat) {
513 node = CACreateNewOptionNode(
514 COAP_OPTION_CONTENT_FORMAT,
515 coap_encode_var_bytes(buf, (uint16_t)COAP_MEDIATYPE_APPLICATION_CBOR),
519 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->payloadFormat);
523 OIC_LOG(ERROR, TAG, "format option not created");
524 return CA_STATUS_INVALID_PARAM;
526 int ret = coap_insert(optlist, node, CAOrderOpts);
530 OIC_LOG(ERROR, TAG, "format option not inserted in header");
531 return CA_STATUS_INVALID_PARAM;
535 OIC_LOG(DEBUG, TAG, "OUT");
539 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
541 OIC_LOG(DEBUG, TAG, "IN");
545 OIC_LOG(ERROR, TAG, "invalid pointer parameter");
549 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
552 OIC_LOG(ERROR, TAG, "Out of memory");
555 memset(option, 0, sizeof(coap_option) + length + 1);
557 COAP_OPTION_KEY(*option) = key;
559 coap_option_def_t* def = coap_opt_def(key);
560 if (NULL != def && coap_is_var_bytes(def))
562 if (length > def->max)
564 // make sure we shrink the value so it fits the coap option definition
565 // by truncating the value, disregard the leading bytes.
566 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
567 def->key, length, def->max);
568 data = &(data[length-def->max]);
571 // Shrink the encoding length to a minimum size for coap
572 // options that support variable length encoding.
573 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
574 COAP_OPTION_DATA(*option),
575 coap_decode_var_bytes((unsigned char *)data, length));
579 COAP_OPTION_LENGTH(*option) = length;
580 memcpy(COAP_OPTION_DATA(*option), data, length);
583 /* we can pass NULL here as delete function since option is released automatically */
584 coap_list_t *node = coap_new_listnode(option, NULL);
588 OIC_LOG(ERROR, TAG, "node is NULL");
593 OIC_LOG(DEBUG, TAG, "OUT");
597 int CAOrderOpts(void *a, void *b)
599 OIC_LOG(DEBUG, TAG, "IN");
602 return a < b ? -1 : 1;
605 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
610 OIC_LOG(DEBUG, TAG, "OUT");
611 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
614 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
616 OIC_LOG(DEBUG, TAG, "IN");
620 while ((option = coap_option_next(&opt_iter)))
622 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
623 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
624 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
625 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type)
631 OIC_LOG(DEBUG, TAG, "OUT");
635 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, uint32_t *outCode, CAInfo_t *outInfo)
637 OIC_LOG(DEBUG, TAG, "IN");
639 if (!pdu || !outCode || !outInfo)
641 OIC_LOG(ERROR, TAG, "NULL pointer param");
642 return CA_STATUS_INVALID_PARAM;
645 coap_opt_iterator_t opt_iter;
646 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL);
650 (*outCode) = (uint32_t) CA_RESPONSE_CODE(pdu->hdr->code);
653 // init HeaderOption list
654 uint32_t count = CAGetOptionCount(opt_iter);
655 memset(outInfo, 0, sizeof(*outInfo));
657 outInfo->numOptions = count;
660 outInfo->type = pdu->hdr->type;
663 outInfo->messageId = pdu->hdr->id;
664 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
668 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
669 if (NULL == outInfo->options)
671 OIC_LOG(ERROR, TAG, "Out of memory");
672 return CA_MEMORY_ALLOC_FAILED;
677 char optionResult[CA_MAX_URI_LENGTH] = {0};
679 uint32_t optionLength = 0;
680 bool isfirstsetflag = false;
681 bool isQueryBeingProcessed = false;
683 while ((option = coap_option_next(&opt_iter)))
685 char buf[COAP_MAX_PDU_SIZE] = {0};
687 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
688 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
691 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
692 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
694 if (false == isfirstsetflag)
696 isfirstsetflag = true;
697 optionResult[optionLength] = '/';
699 // Make sure there is enough room in the optionResult buffer
700 if ((optionLength + bufLength) < sizeof(optionResult))
702 memcpy(&optionResult[optionLength], buf, bufLength);
703 optionLength += bufLength;
712 if (COAP_OPTION_URI_PATH == opt_iter.type)
714 // Make sure there is enough room in the optionResult buffer
715 if (optionLength < sizeof(optionResult))
717 optionResult[optionLength] = '/';
725 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
727 if (false == isQueryBeingProcessed)
729 // Make sure there is enough room in the optionResult buffer
730 if (optionLength < sizeof(optionResult))
732 optionResult[optionLength] = '?';
734 isQueryBeingProcessed = true;
743 // Make sure there is enough room in the optionResult buffer
744 if (optionLength < sizeof(optionResult))
746 optionResult[optionLength] = ';';
755 // Make sure there is enough room in the optionResult buffer
756 if ((optionLength + bufLength) < sizeof(optionResult))
758 memcpy(&optionResult[optionLength], buf, bufLength);
759 optionLength += bufLength;
767 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
768 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
770 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
772 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
774 if (1 == COAP_OPT_LENGTH(option) && COAP_MEDIATYPE_APPLICATION_CBOR == buf[0])
776 outInfo->payloadFormat = CA_FORMAT_CBOR;
780 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
782 OIC_LOG_V(DEBUG, TAG, "option[%d] has format [%d]", opt_iter.type, (uint8_t)buf[0]);
788 uint32_t length = bufLength;
790 if (length <= CA_MAX_HEADER_OPTION_DATA_LENGTH)
792 outInfo->options[idx].optionID = opt_iter.type;
793 outInfo->options[idx].optionLength = length;
794 outInfo->options[idx].protocolID = CA_COAP_ID;
795 memcpy(outInfo->options[idx].optionData, buf, length);
804 if (pdu->hdr->token_length > 0)
806 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", pdu->hdr->token_length);
807 outInfo->token = (char *) OICMalloc(pdu->hdr->token_length);
808 if (NULL == outInfo->token)
810 OIC_LOG(ERROR, TAG, "Out of memory");
811 OICFree(outInfo->options);
812 return CA_MEMORY_ALLOC_FAILED;
814 memcpy(outInfo->token, pdu->hdr->token, pdu->hdr->token_length);
817 outInfo->tokenLength = pdu->hdr->token_length;
822 if (coap_get_data(pdu, &dataSize, &data))
824 OIC_LOG(DEBUG, TAG, "inside pdu->data");
825 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
826 if (NULL == outInfo->payload)
828 OIC_LOG(ERROR, TAG, "Out of memory");
829 OICFree(outInfo->options);
830 OICFree(outInfo->token);
831 return CA_MEMORY_ALLOC_FAILED;
833 memcpy(outInfo->payload, pdu->data, dataSize);
834 outInfo->payloadSize = dataSize;
837 if (optionResult[0] != '\0')
839 OIC_LOG_V(DEBUG, TAG, "URL length:%d", strlen(optionResult));
840 outInfo->resourceUri = OICStrdup(optionResult);
841 if (!outInfo->resourceUri)
843 OIC_LOG(ERROR, TAG, "Out of memory");
844 OICFree(outInfo->options);
845 OICFree(outInfo->token);
846 return CA_MEMORY_ALLOC_FAILED;
850 OIC_LOG(DEBUG, TAG, "OUT");
854 OIC_LOG(ERROR, TAG, "buffer too small");
855 OICFree(outInfo->options);
856 return CA_STATUS_FAILED;
859 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo)
861 OIC_LOG(DEBUG, TAG, "IN");
864 OIC_LOG(ERROR, TAG, "pdu_hdr is null");
865 return CA_STATUS_INVALID_PARAM;
870 OIC_LOG(ERROR, TAG, "outInfo is null");
871 return CA_STATUS_INVALID_PARAM;
875 if (pdu_hdr->token_length > 0)
877 OIC_LOG_V(DEBUG, TAG, "token len:%d", pdu_hdr->token_length);
878 outInfo->token = (char *) OICMalloc(pdu_hdr->token_length);
879 if (NULL == outInfo->token)
881 OIC_LOG(ERROR, TAG, "out of memory");
882 return CA_MEMORY_ALLOC_FAILED;
884 memcpy(outInfo->token, pdu_hdr->token, pdu_hdr->token_length);
887 outInfo->tokenLength = pdu_hdr->token_length;
889 OIC_LOG(DEBUG, TAG, "OUT");
894 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
896 OIC_LOG(DEBUG, TAG, "IN");
900 OIC_LOG(ERROR, TAG, "invalid token pointer");
901 return CA_STATUS_INVALID_PARAM;
904 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
906 OIC_LOG(ERROR, TAG, "invalid token length");
907 return CA_STATUS_INVALID_PARAM;
917 if (SEED == (unsigned int)((time_t)-1))
919 OIC_LOG(ERROR, TAG, "seed is not made");
921 return CA_STATUS_FAILED;
931 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
934 OIC_LOG(ERROR, TAG, "Out of memory");
935 return CA_MEMORY_ALLOC_FAILED;
939 for (uint8_t index = 0; index < tokenLength; index++)
941 // use valid characters
943 temp[index] = rand() & 0x00FF;
945 temp[index] = random() & 0x00FF;
952 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
953 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
955 OIC_LOG(DEBUG, TAG, "OUT");
959 void CADestroyTokenInternal(CAToken_t token)
961 OIC_LOG(DEBUG, TAG, "IN");
963 OIC_LOG(DEBUG, TAG, "OUT");
966 void CADestroyInfo(CAInfo_t *info)
968 OIC_LOG(DEBUG, TAG, "IN");
972 OIC_LOG(DEBUG, TAG, "free options");
973 OICFree(info->options);
975 OIC_LOG(DEBUG, TAG, "free token");
976 OICFree(info->token);
978 OIC_LOG(DEBUG, TAG, "free payload");
979 OICFree(info->payload);
982 OIC_LOG(DEBUG, TAG, "OUT");
985 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
986 uint8_t *option, uint32_t buflen)
990 OIC_LOG(ERROR, TAG, "buflen 0");
994 if (NULL == data || NULL == option)
996 OIC_LOG(ERROR, TAG, "data/option NULL");
1002 OIC_LOG(ERROR, TAG, "option buffer too small");
1006 coap_option_def_t* def = coap_opt_def(key);
1007 if(NULL != def && coap_is_var_bytes(def) && 0 == len) {
1008 // A 0 length option is permitted in CoAP but the
1009 // rest or the stack is unaware of variable byte encoding
1010 // should remain that way so a 0 byte of length 1 is inserted.
1014 memcpy(option, data, len);
1021 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
1025 OIC_LOG(ERROR, TAG, "pdu is null");
1026 return CA_MSG_NONCONFIRM;
1029 // pdu minimum size is 4 byte.
1030 if (size < CA_PDU_MIN_SIZE)
1032 OIC_LOG(ERROR, TAG, "min size");
1033 return CA_MSG_NONCONFIRM;
1036 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1038 return (CAMessageType_t) hdr->type;
1041 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
1045 OIC_LOG(ERROR, TAG, "pdu is null");
1049 // pdu minimum size is 4 byte.
1050 if (size < CA_PDU_MIN_SIZE)
1052 OIC_LOG(ERROR, TAG, "min size");
1056 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1061 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
1065 OIC_LOG(ERROR, TAG, "pdu is null");
1066 return CA_NOT_FOUND;
1069 // pdu minimum size is 4 byte.
1070 if (size < CA_PDU_MIN_SIZE)
1072 OIC_LOG(ERROR, TAG, "min size");
1073 return CA_NOT_FOUND;
1076 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1078 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);