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 // For details on compatibility and glibc support,
28 // Refer http://www.gnu.org/software/libc/manual/html_node/BSD-Random.html
29 #define _DEFAULT_SOURCE
31 #include "iotivity_config.h"
40 #include "caprotocolmessage.h"
42 #include "oic_malloc.h"
43 #include "oic_string.h"
45 #include "cacommonutil.h"
47 #define TAG "OIC_CA_PRTCL_MSG"
49 #define CA_PDU_MIN_SIZE (4)
50 #define CA_ENCODE_BUFFER_SIZE (4)
52 static const char COAP_URI_HEADER[] = "coap://[::]/";
54 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
55 CARequestInfo_t *outReqInfo)
57 VERIFY_NON_NULL(pdu, TAG, "pdu");
58 VERIFY_NON_NULL(outReqInfo, TAG, "outReqInfo");
60 uint32_t code = CA_NOT_FOUND;
61 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outReqInfo->info));
62 outReqInfo->method = code;
67 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo,
68 const CAEndpoint_t *endpoint)
70 VERIFY_NON_NULL(pdu, TAG, "pdu");
71 VERIFY_NON_NULL(outResInfo, TAG, "outResInfo");
73 uint32_t code = CA_NOT_FOUND;
74 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outResInfo->info));
75 outResInfo->result = code;
80 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
81 CAErrorInfo_t *errorInfo)
83 VERIFY_NON_NULL(pdu, TAG, "pdu");
86 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &errorInfo->info);
91 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info, const CAEndpoint_t *endpoint,
92 coap_list_t **optlist, coap_transport_type *transport)
94 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
95 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
96 VERIFY_NON_NULL_RET(optlist, TAG, "optlist", NULL);
98 coap_pdu_t *pdu = NULL;
100 // RESET have to use only 4byte (empty message)
101 // and ACKNOWLEDGE can use empty message when code is empty.
102 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
104 if (CA_EMPTY != code)
106 OIC_LOG(ERROR, TAG, "reset is not empty message");
110 if (info->payloadSize > 0 || info->payload || info->token || info->tokenLength > 0)
112 OIC_LOG(ERROR, TAG, "Empty message has unnecessary data after messageID");
116 OIC_LOG(DEBUG, TAG, "code is empty");
117 if (!(pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, NULL, transport)))
119 OIC_LOG(ERROR, TAG, "pdu NULL");
125 if (info->resourceUri)
127 uint32_t length = strlen(info->resourceUri);
128 if (CA_MAX_URI_LENGTH < length)
130 OIC_LOG(ERROR, TAG, "URI len err");
134 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
135 char *coapUri = (char *) OICCalloc(1, uriLength);
138 OIC_LOG(ERROR, TAG, "out of memory");
141 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
142 OICStrcat(coapUri, uriLength, info->resourceUri);
144 // parsing options in URI
145 CAResult_t res = CAParseURI(coapUri, optlist);
146 if (CA_STATUS_OK != res)
154 // parsing options in HeadOption
155 CAResult_t ret = CAParseHeadOption(code, info, optlist);
156 if (CA_STATUS_OK != ret)
161 pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, *optlist, transport);
164 OIC_LOG(ERROR, TAG, "pdu NULL");
169 // pdu print method : coap_show_pdu(pdu);
173 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode,
174 const CAEndpoint_t *endpoint)
176 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
177 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
179 coap_transport_type transport;
181 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
183 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)data)[0] >> 4);
188 transport = coap_udp;
191 coap_pdu_t *outpdu = coap_new_pdu(transport, length);
194 OIC_LOG(ERROR, TAG, "outpdu is null");
198 OIC_LOG_V(DEBUG, TAG, "pdu parse-transport type : %d", transport);
200 int ret = coap_pdu_parse((unsigned char *) data, length, outpdu, transport);
201 OIC_LOG_V(DEBUG, TAG, "pdu parse ret: %d", ret);
204 OIC_LOG(ERROR, TAG, "pdu parse failed");
209 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
211 OIC_LOG(INFO, TAG, "there is no version info in coap header");
216 if (outpdu->hdr->coap_hdr_udp_t.version != COAP_DEFAULT_VERSION)
218 OIC_LOG_V(ERROR, TAG, "coap version is not available : %d",
219 outpdu->hdr->coap_hdr_udp_t.version);
222 if (outpdu->hdr->coap_hdr_udp_t.token_length > CA_MAX_TOKEN_LEN)
224 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
225 outpdu->hdr->coap_hdr_udp_t.token_length);
232 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(outpdu, transport));
238 coap_delete_pdu(outpdu);
242 coap_pdu_t *CAGeneratePDUImpl(code_t code, const CAInfo_t *info,
243 const CAEndpoint_t *endpoint, coap_list_t *options,
244 coap_transport_type *transport)
246 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
247 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
248 VERIFY_NON_NULL_RET(transport, TAG, "transport", NULL);
250 unsigned int length = COAP_MAX_PDU_SIZE;
252 unsigned int msgLength = 0;
253 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
257 unsigned short prevOptNumber = 0;
258 for (coap_list_t *opt = options; opt; opt = opt->next)
260 unsigned short curOptNumber = COAP_OPTION_KEY(*(coap_option *) opt->data);
261 if (prevOptNumber > curOptNumber)
263 OIC_LOG(ERROR, TAG, "option list is wrong");
267 size_t optValueLen = COAP_OPTION_LENGTH(*(coap_option *) opt->data);
268 size_t optLength = coap_get_opt_header_length(curOptNumber - prevOptNumber, optValueLen);
271 OIC_LOG(ERROR, TAG, "Reserved for the Payload marker for the option");
274 msgLength += optLength;
275 prevOptNumber = curOptNumber;
276 OIC_LOG_V(DEBUG, TAG, "curOptNumber[%d], prevOptNumber[%d], optValueLen[%zu], "
277 "optLength[%zu], msgLength[%d]",
278 curOptNumber, prevOptNumber, optValueLen, optLength, msgLength);
282 if (info->payloadSize > 0)
284 msgLength = msgLength + info->payloadSize + PAYLOAD_MARKER;
286 *transport = coap_get_tcp_header_type_from_size(msgLength);
287 length = msgLength + coap_get_tcp_header_length_for_transport(*transport)
293 *transport = coap_udp;
296 coap_pdu_t *pdu = coap_new_pdu(*transport, length);
300 OIC_LOG(ERROR, TAG, "malloc failed");
304 OIC_LOG_V(DEBUG, TAG, "transport type: %d, payload size: %zu",
305 *transport, info->payloadSize);
308 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
310 coap_add_length(pdu, *transport, msgLength);
315 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info->messageId);
316 uint16_t message_id = 0;
317 if (0 == info->messageId)
319 /* initialize message id */
320 prng((uint8_t * ) &message_id, sizeof(message_id));
322 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
326 /* use saved message id */
327 message_id = info->messageId;
329 pdu->hdr->coap_hdr_udp_t.id = message_id;
330 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->hdr->coap_hdr_udp_t.id);
332 pdu->hdr->coap_hdr_udp_t.type = info->type;
335 coap_add_code(pdu, *transport, code);
337 if (info->token && CA_EMPTY != code)
339 uint32_t tokenLength = info->tokenLength;
340 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
341 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info->token, tokenLength);
343 int32_t ret = coap_add_token(pdu, tokenLength, (unsigned char *)info->token, *transport);
346 OIC_LOG(ERROR, TAG, "can't add token");
351 if (CA_ADAPTER_GATT_BTLE != endpoint->adapter
353 && !CAIsSupportedCoAPOverTCP(endpoint->adapter)
357 // option list will be added in blockwise-transfer
364 for (coap_list_t *opt = options; opt; opt = opt->next)
366 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
367 COAP_OPTION_DATA(*(coap_option *) opt->data));
369 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length", pdu->length);
370 coap_add_option(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
371 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
372 COAP_OPTION_DATA(*(coap_option *) opt->data), *transport);
376 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length after option", pdu->length);
378 if (NULL != info->payload && 0 < info->payloadSize)
380 OIC_LOG(DEBUG, TAG, "payload is added");
381 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
387 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
389 VERIFY_NON_NULL(uriInfo, TAG, "uriInfo");
390 VERIFY_NON_NULL(optlist, TAG, "optlist");
392 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
394 /* split arg into Uri-* options */
396 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
398 if (uri.port != COAP_DEFAULT_PORT)
400 unsigned char portbuf[CA_ENCODE_BUFFER_SIZE] = { 0 };
401 int ret = coap_insert(optlist,
402 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
403 coap_encode_var_bytes(portbuf, uri.port),
408 return CA_STATUS_INVALID_PARAM;
412 if (uri.path.s && uri.path.length)
414 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
415 COAP_OPTION_URI_PATH, optlist);
416 if (CA_STATUS_OK != ret)
418 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
423 if (uri.query.s && uri.query.length)
425 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
427 if (CA_STATUS_OK != ret)
429 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
437 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
438 coap_list_t **optlist)
440 VERIFY_NON_NULL(optlist, TAG, "optlist");
442 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
444 // should never occur. Log just in case.
445 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
446 return CA_NOT_SUPPORTED;
448 else if (str && length)
450 unsigned char uriBuffer[CA_MAX_URI_LENGTH] = { 0 };
451 unsigned char *pBuf = uriBuffer;
452 size_t buflen = sizeof(uriBuffer);
453 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
454 coap_split_query(str, length, pBuf, &buflen);
461 int ret = coap_insert(optlist,
462 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
463 (char *)COAP_OPT_VALUE(pBuf)),
467 return CA_STATUS_INVALID_PARAM;
470 size_t optSize = COAP_OPT_SIZE(pBuf);
471 if ((prevIdx + optSize) < buflen)
480 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
481 return CA_STATUS_FAILED;
486 OIC_LOG(ERROR, TAG, "str or length is not available");
487 return CA_STATUS_FAILED;
493 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
496 VERIFY_NON_NULL_RET(info, TAG, "info", CA_STATUS_INVALID_PARAM);
498 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
502 OIC_LOG(ERROR, TAG, "optlist is null");
503 return CA_STATUS_INVALID_PARAM;
506 for (uint32_t i = 0; i < info->numOptions; i++)
508 if(!(info->options + i))
510 OIC_LOG(ERROR, TAG, "options is not available");
511 return CA_STATUS_FAILED;
514 uint32_t id = (info->options + i)->optionID;
515 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
517 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
521 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
522 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
523 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
524 int ret = coap_insert(optlist,
525 CACreateNewOptionNode(id, (info->options + i)->optionLength,
526 (info->options + i)->optionData),
530 return CA_STATUS_INVALID_PARAM;
535 // insert one extra header with the payload format if applicable.
536 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
538 coap_list_t* node = NULL;
539 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
540 switch (info->payloadFormat)
542 case CA_FORMAT_APPLICATION_CBOR:
543 node = CACreateNewOptionNode(
544 COAP_OPTION_CONTENT_FORMAT,
545 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
549 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->payloadFormat);
553 OIC_LOG(ERROR, TAG, "format option not created");
554 return CA_STATUS_INVALID_PARAM;
556 int ret = coap_insert(optlist, node, CAOrderOpts);
560 OIC_LOG(ERROR, TAG, "format option not inserted in header");
561 return CA_STATUS_INVALID_PARAM;
564 if (CA_FORMAT_UNDEFINED != info->acceptFormat)
566 coap_list_t* node = NULL;
567 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
568 switch (info->acceptFormat)
570 case CA_FORMAT_APPLICATION_CBOR:
571 node = CACreateNewOptionNode(
573 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
577 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->acceptFormat);
581 OIC_LOG(ERROR, TAG, "format option not created");
582 return CA_STATUS_INVALID_PARAM;
584 int ret = coap_insert(optlist, node, CAOrderOpts);
588 OIC_LOG(ERROR, TAG, "format option not inserted in header");
589 return CA_STATUS_INVALID_PARAM;
596 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
598 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
600 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
603 OIC_LOG(ERROR, TAG, "Out of memory");
606 memset(option, 0, sizeof(coap_option) + length + 1);
608 COAP_OPTION_KEY(*option) = key;
610 coap_option_def_t* def = coap_opt_def(key);
611 if (NULL != def && coap_is_var_bytes(def))
613 if (length > def->max)
615 // make sure we shrink the value so it fits the coap option definition
616 // by truncating the value, disregard the leading bytes.
617 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
618 def->key, length, def->max);
619 data = &(data[length-def->max]);
622 // Shrink the encoding length to a minimum size for coap
623 // options that support variable length encoding.
624 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
625 COAP_OPTION_DATA(*option),
626 coap_decode_var_bytes((unsigned char *)data, length));
630 COAP_OPTION_LENGTH(*option) = length;
631 memcpy(COAP_OPTION_DATA(*option), data, length);
634 /* we can pass NULL here as delete function since option is released automatically */
635 coap_list_t *node = coap_new_listnode(option, NULL);
639 OIC_LOG(ERROR, TAG, "node is NULL");
647 int CAOrderOpts(void *a, void *b)
651 return a < b ? -1 : 1;
654 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
659 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
662 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
665 coap_opt_t *option = NULL;
667 while ((option = coap_option_next(&opt_iter)))
669 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
670 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
671 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
672 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type
673 && COAP_OPTION_ACCEPT != opt_iter.type
674 && COAP_OPTION_URI_HOST != opt_iter.type && COAP_OPTION_URI_PORT != opt_iter.type
675 && COAP_OPTION_ETAG != opt_iter.type && COAP_OPTION_MAXAGE != opt_iter.type
676 && COAP_OPTION_PROXY_URI != opt_iter.type && COAP_OPTION_PROXY_SCHEME != opt_iter.type)
685 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
686 uint32_t *outCode, CAInfo_t *outInfo)
688 VERIFY_NON_NULL(pdu, TAG, "pdu");
689 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
690 VERIFY_NON_NULL(outCode, TAG, "outCode");
691 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
693 coap_transport_type transport;
695 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
697 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu->hdr)[0] >> 4);
702 transport = coap_udp;
705 coap_opt_iterator_t opt_iter;
706 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL, transport);
710 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(pdu, transport));
713 // init HeaderOption list
714 uint32_t count = CAGetOptionCount(opt_iter);
715 memset(outInfo, 0, sizeof(*outInfo));
717 outInfo->numOptions = count;
720 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
723 outInfo->type = CA_MSG_NONCONFIRM;
724 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
732 outInfo->type = pdu->hdr->coap_hdr_udp_t.type;
735 outInfo->messageId = pdu->hdr->coap_hdr_udp_t.id;
736 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
737 outInfo->acceptFormat = CA_FORMAT_UNDEFINED;
742 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
743 if (NULL == outInfo->options)
745 OIC_LOG(ERROR, TAG, "Out of memory");
746 return CA_MEMORY_ALLOC_FAILED;
750 coap_opt_t *option = NULL;
751 char optionResult[CA_MAX_URI_LENGTH] = {0};
753 uint32_t optionLength = 0;
754 bool isfirstsetflag = false;
755 bool isQueryBeingProcessed = false;
757 while ((option = coap_option_next(&opt_iter)))
759 char buf[COAP_MAX_PDU_SIZE] = {0};
761 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
762 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
765 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
766 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
768 if (false == isfirstsetflag)
770 isfirstsetflag = true;
771 optionResult[optionLength] = '/';
773 // Make sure there is enough room in the optionResult buffer
774 if ((optionLength + bufLength) < sizeof(optionResult))
776 memcpy(&optionResult[optionLength], buf, bufLength);
777 optionLength += bufLength;
786 if (COAP_OPTION_URI_PATH == opt_iter.type)
788 // Make sure there is enough room in the optionResult buffer
789 if (optionLength < sizeof(optionResult))
791 optionResult[optionLength] = '/';
799 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
801 if (false == isQueryBeingProcessed)
803 // Make sure there is enough room in the optionResult buffer
804 if (optionLength < sizeof(optionResult))
806 optionResult[optionLength] = '?';
808 isQueryBeingProcessed = true;
817 // Make sure there is enough room in the optionResult buffer
818 if (optionLength < sizeof(optionResult))
820 optionResult[optionLength] = ';';
829 // Make sure there is enough room in the optionResult buffer
830 if ((optionLength + bufLength) < sizeof(optionResult))
832 memcpy(&optionResult[optionLength], buf, bufLength);
833 optionLength += bufLength;
841 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
842 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
844 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
846 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
848 if (1 == COAP_OPT_LENGTH(option))
850 outInfo->payloadFormat = CAConvertFormat((uint8_t)buf[0]);
854 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
855 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
856 opt_iter.type, (uint8_t)buf[0]);
859 else if (COAP_OPTION_ACCEPT == opt_iter.type)
861 if (1 == COAP_OPT_LENGTH(option))
863 outInfo->acceptFormat = CAConvertFormat((uint8_t)buf[0]);
867 outInfo->acceptFormat = CA_FORMAT_UNSUPPORTED;
869 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
870 opt_iter.type, (uint8_t)buf[0]);
872 else if (COAP_OPTION_URI_PORT == opt_iter.type ||
873 COAP_OPTION_URI_HOST == opt_iter.type ||
874 COAP_OPTION_ETAG == opt_iter.type ||
875 COAP_OPTION_MAXAGE == opt_iter.type ||
876 COAP_OPTION_PROXY_URI == opt_iter.type ||
877 COAP_OPTION_PROXY_SCHEME== opt_iter.type)
879 OIC_LOG_V(INFO, TAG, "option[%d] has an unsupported format [%d]",
880 opt_iter.type, (uint8_t)buf[0]);
886 if (bufLength <= sizeof(outInfo->options[0].optionData))
888 outInfo->options[idx].optionID = opt_iter.type;
889 outInfo->options[idx].optionLength = bufLength;
890 outInfo->options[idx].protocolID = CA_COAP_ID;
891 memcpy(outInfo->options[idx].optionData, buf, bufLength);
899 unsigned char* token = NULL;
900 unsigned int token_length = 0;
901 coap_get_token(pdu->hdr, transport, &token, &token_length);
904 if (token_length > 0)
906 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", token_length);
907 outInfo->token = (char *) OICMalloc(token_length);
908 if (NULL == outInfo->token)
910 OIC_LOG(ERROR, TAG, "Out of memory");
911 OICFree(outInfo->options);
912 return CA_MEMORY_ALLOC_FAILED;
914 memcpy(outInfo->token, token, token_length);
917 outInfo->tokenLength = token_length;
922 if (coap_get_data(pdu, &dataSize, &data))
924 OIC_LOG(DEBUG, TAG, "inside pdu->data");
925 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
926 if (NULL == outInfo->payload)
928 OIC_LOG(ERROR, TAG, "Out of memory");
929 OICFree(outInfo->options);
930 OICFree(outInfo->token);
931 return CA_MEMORY_ALLOC_FAILED;
933 memcpy(outInfo->payload, pdu->data, dataSize);
934 outInfo->payloadSize = dataSize;
937 if (optionResult[0] != '\0')
939 OIC_LOG_V(DEBUG, TAG, "URL length:%zu", strlen(optionResult));
940 outInfo->resourceUri = OICStrdup(optionResult);
941 if (!outInfo->resourceUri)
943 OIC_LOG(ERROR, TAG, "Out of memory");
944 OICFree(outInfo->options);
945 OICFree(outInfo->token);
946 return CA_MEMORY_ALLOC_FAILED;
953 OIC_LOG(ERROR, TAG, "buffer too small");
954 OICFree(outInfo->options);
955 return CA_STATUS_FAILED;
958 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo,
959 const CAEndpoint_t *endpoint)
961 VERIFY_NON_NULL(pdu_hdr, TAG, "pdu_hdr");
962 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
963 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
965 coap_transport_type transport = coap_udp;
967 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
969 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu_hdr)[0] >> 4);
973 unsigned char* token = NULL;
974 unsigned int token_length = 0;
975 coap_get_token(pdu_hdr, transport, &token, &token_length);
978 if (token_length > 0)
980 OIC_LOG_V(DEBUG, TAG, "token len:%d", token_length);
981 outInfo->token = (char *) OICMalloc(token_length);
982 if (NULL == outInfo->token)
984 OIC_LOG(ERROR, TAG, "Out of memory");
985 return CA_MEMORY_ALLOC_FAILED;
987 memcpy(outInfo->token, token, token_length);
990 outInfo->tokenLength = token_length;
995 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
997 VERIFY_NON_NULL(token, TAG, "token");
999 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
1001 OIC_LOG(ERROR, TAG, "invalid token length");
1002 return CA_STATUS_INVALID_PARAM;
1005 // memory allocation
1006 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
1009 OIC_LOG(ERROR, TAG, "Out of memory");
1010 return CA_MEMORY_ALLOC_FAILED;
1013 OCFillRandomMem((uint8_t *)temp, tokenLength);
1018 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
1019 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
1021 return CA_STATUS_OK;
1024 void CADestroyTokenInternal(CAToken_t token)
1029 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
1030 uint8_t *option, uint32_t buflen)
1034 OIC_LOG(ERROR, TAG, "buflen 0");
1040 OIC_LOG(ERROR, TAG, "option buffer too small");
1044 coap_option_def_t* def = coap_opt_def(key);
1045 if (NULL != def && coap_is_var_bytes(def) && 0 == len)
1047 // A 0 length option is permitted in CoAP but the
1048 // rest or the stack is unaware of variable byte encoding
1049 // should remain that way so a 0 byte of length 1 is inserted.
1055 memcpy(option, data, len);
1062 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
1064 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_MSG_NONCONFIRM);
1066 // pdu minimum size is 4 byte.
1067 if (size < CA_PDU_MIN_SIZE)
1069 OIC_LOG(ERROR, TAG, "min size");
1070 return CA_MSG_NONCONFIRM;
1073 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1075 return (CAMessageType_t) hdr->coap_hdr_udp_t.type;
1078 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
1080 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", 0);
1082 // pdu minimum size is 4 byte.
1083 if (size < CA_PDU_MIN_SIZE)
1085 OIC_LOG(ERROR, TAG, "min size");
1089 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1091 return hdr->coap_hdr_udp_t.id;
1094 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
1096 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_NOT_FOUND);
1098 // pdu minimum size is 4 byte.
1099 if (size < CA_PDU_MIN_SIZE)
1101 OIC_LOG(ERROR, TAG, "min size");
1102 return CA_NOT_FOUND;
1105 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1107 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->coap_hdr_udp_t.code);
1110 CAPayloadFormat_t CAConvertFormat(uint8_t format)
1114 case COAP_MEDIATYPE_TEXT_PLAIN:
1115 return CA_FORMAT_TEXT_PLAIN;
1116 case COAP_MEDIATYPE_APPLICATION_LINK_FORMAT:
1117 return CA_FORMAT_APPLICATION_LINK_FORMAT;
1118 case COAP_MEDIATYPE_APPLICATION_XML:
1119 return CA_FORMAT_APPLICATION_XML;
1120 case COAP_MEDIATYPE_APPLICATION_OCTET_STREAM:
1121 return CA_FORMAT_APPLICATION_OCTET_STREAM;
1122 case COAP_MEDIATYPE_APPLICATION_RDF_XML:
1123 return CA_FORMAT_APPLICATION_RDF_XML;
1124 case COAP_MEDIATYPE_APPLICATION_EXI:
1125 return CA_FORMAT_APPLICATION_EXI;
1126 case COAP_MEDIATYPE_APPLICATION_JSON:
1127 return CA_FORMAT_APPLICATION_JSON;
1128 case COAP_MEDIATYPE_APPLICATION_CBOR:
1129 return CA_FORMAT_APPLICATION_CBOR;
1131 return CA_FORMAT_UNSUPPORTED;
1136 bool CAIsSupportedBlockwiseTransfer(CATransportAdapter_t adapter)
1138 if (CA_ADAPTER_IP & adapter || CA_ADAPTER_NFC & adapter
1139 || CA_DEFAULT_ADAPTER == adapter)
1148 bool CAIsSupportedCoAPOverTCP(CATransportAdapter_t adapter)
1150 if (CA_ADAPTER_GATT_BTLE & adapter || CA_ADAPTER_RFCOMM_BTEDR & adapter
1151 || CA_ADAPTER_TCP & adapter || CA_DEFAULT_ADAPTER == adapter)