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
39 #include "caprotocolmessage.h"
41 #include "oic_malloc.h"
42 #include "oic_string.h"
44 #include "cacommonutil.h"
46 #define TAG "OIC_CA_PRTCL_MSG"
48 #define CA_PDU_MIN_SIZE (4)
49 #define CA_PORT_BUFFER_SIZE (4)
51 static const char COAP_URI_HEADER[] = "coap://[::]/";
53 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
54 CARequestInfo_t *outReqInfo)
56 VERIFY_NON_NULL(pdu, TAG, "pdu");
57 VERIFY_NON_NULL(outReqInfo, TAG, "outReqInfo");
59 uint32_t code = CA_NOT_FOUND;
60 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outReqInfo->info));
61 outReqInfo->method = code;
66 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo,
67 const CAEndpoint_t *endpoint)
69 VERIFY_NON_NULL(pdu, TAG, "pdu");
70 VERIFY_NON_NULL(outResInfo, TAG, "outResInfo");
72 uint32_t code = CA_NOT_FOUND;
73 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outResInfo->info));
74 outResInfo->result = code;
79 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
80 CAErrorInfo_t *errorInfo)
82 VERIFY_NON_NULL(pdu, TAG, "pdu");
85 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &errorInfo->info);
90 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info, const CAEndpoint_t *endpoint,
91 coap_list_t **optlist, coap_transport_type *transport)
93 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
94 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
95 VERIFY_NON_NULL_RET(optlist, TAG, "optlist", NULL);
97 coap_pdu_t *pdu = NULL;
99 // RESET have to use only 4byte (empty message)
100 // and ACKNOWLEDGE can use empty message when code is empty.
101 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
103 if (CA_EMPTY != code)
105 OIC_LOG(ERROR, TAG, "reset is not empty message");
109 if (info->payloadSize > 0 || info->payload || info->token || info->tokenLength > 0)
111 OIC_LOG(ERROR, TAG, "Empty message has unnecessary data after messageID");
115 OIC_LOG(DEBUG, TAG, "code is empty");
116 if (!(pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, NULL, transport)))
118 OIC_LOG(ERROR, TAG, "pdu NULL");
124 if (info->resourceUri)
126 uint32_t length = strlen(info->resourceUri);
127 if (CA_MAX_URI_LENGTH < length)
129 OIC_LOG(ERROR, TAG, "URI len err");
133 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
134 char *coapUri = (char *) OICCalloc(1, uriLength);
137 OIC_LOG(ERROR, TAG, "out of memory");
140 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
141 OICStrcat(coapUri, uriLength, info->resourceUri);
143 // parsing options in URI
144 CAResult_t res = CAParseURI(coapUri, optlist);
145 if (CA_STATUS_OK != res)
153 // parsing options in HeadOption
154 CAResult_t ret = CAParseHeadOption(code, info, optlist);
155 if (CA_STATUS_OK != ret)
160 pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, *optlist, transport);
163 OIC_LOG(ERROR, TAG, "pdu NULL");
168 // pdu print method : coap_show_pdu(pdu);
172 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode,
173 const CAEndpoint_t *endpoint)
175 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
176 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
178 coap_transport_type transport;
180 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
182 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)data)[0] >> 4);
187 transport = coap_udp;
190 coap_pdu_t *outpdu = coap_new_pdu(transport, length);
193 OIC_LOG(ERROR, TAG, "outpdu is null");
197 OIC_LOG_V(DEBUG, TAG, "pdu parse-transport type : %d", transport);
199 int ret = coap_pdu_parse((unsigned char *) data, length, outpdu, transport);
200 OIC_LOG_V(DEBUG, TAG, "pdu parse ret: %d", ret);
203 OIC_LOG(ERROR, TAG, "pdu parse failed");
204 coap_delete_pdu(outpdu);
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);
220 coap_delete_pdu(outpdu);
223 if (outpdu->hdr->coap_hdr_udp_t.token_length > CA_MAX_TOKEN_LEN)
225 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
226 outpdu->hdr->coap_hdr_udp_t.token_length);
227 coap_delete_pdu(outpdu);
234 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(outpdu, transport));
240 coap_pdu_t *CAGeneratePDUImpl(code_t code, const CAInfo_t *info,
241 const CAEndpoint_t *endpoint, coap_list_t *options,
242 coap_transport_type *transport)
244 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
245 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
246 VERIFY_NON_NULL_RET(transport, TAG, "transport", NULL);
248 unsigned int length = COAP_MAX_PDU_SIZE;
250 unsigned int msgLength = 0;
251 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
255 unsigned short prevOptNumber = 0;
256 for (coap_list_t *opt = options; opt; opt = opt->next)
258 unsigned short curOptNumber = COAP_OPTION_KEY(*(coap_option *) opt->data);
259 if (prevOptNumber > curOptNumber)
261 OIC_LOG(ERROR, TAG, "option list is wrong");
265 size_t optValueLen = COAP_OPTION_LENGTH(*(coap_option *) opt->data);
266 size_t optLength = coap_get_opt_header_length(curOptNumber - prevOptNumber, optValueLen);
269 OIC_LOG(ERROR, TAG, "Reserved for the Payload marker for the option");
272 msgLength += optLength;
273 prevOptNumber = curOptNumber;
274 OIC_LOG_V(DEBUG, TAG, "curOptNumber[%d], prevOptNumber[%d], optValueLen[%zu], "
275 "optLength[%zu], msgLength[%d]",
276 curOptNumber, prevOptNumber, optValueLen, optLength, msgLength);
280 if (info->payloadSize > 0)
282 msgLength = msgLength + info->payloadSize + PAYLOAD_MARKER;
284 *transport = coap_get_tcp_header_type_from_size(msgLength);
285 length = msgLength + coap_get_tcp_header_length_for_transport(*transport)
291 *transport = coap_udp;
294 coap_pdu_t *pdu = coap_new_pdu(*transport, length);
298 OIC_LOG(ERROR, TAG, "malloc failed");
302 OIC_LOG_V(DEBUG, TAG, "transport type: %d, payload size: %zu",
303 *transport, info->payloadSize);
306 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
308 coap_add_length(pdu, *transport, msgLength);
313 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info->messageId);
315 if (0 == info->messageId)
317 /* initialize message id */
318 prng((uint8_t * ) &message_id, sizeof(message_id));
320 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
324 /* use saved message id */
325 message_id = info->messageId;
327 pdu->hdr->coap_hdr_udp_t.id = message_id;
328 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->hdr->coap_hdr_udp_t.id);
330 pdu->hdr->coap_hdr_udp_t.type = info->type;
333 coap_add_code(pdu, *transport, code);
335 if (info->token && CA_EMPTY != code)
337 uint32_t tokenLength = info->tokenLength;
338 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
339 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info->token, tokenLength);
341 int32_t ret = coap_add_token(pdu, tokenLength, (unsigned char *)info->token, *transport);
344 OIC_LOG(ERROR, TAG, "can't add token");
349 if (CA_ADAPTER_GATT_BTLE != endpoint->adapter
351 && !CAIsSupportedCoAPOverTCP(endpoint->adapter)
355 // option list will be added in blockwise-transfer
362 for (coap_list_t *opt = options; opt; opt = opt->next)
364 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
365 COAP_OPTION_DATA(*(coap_option *) opt->data));
367 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length", pdu->length);
368 coap_add_option(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
369 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
370 COAP_OPTION_DATA(*(coap_option *) opt->data), *transport);
374 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length after option", pdu->length);
376 if (NULL != info->payload && 0 < info->payloadSize)
378 OIC_LOG(DEBUG, TAG, "payload is added");
379 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
385 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
387 VERIFY_NON_NULL(uriInfo, TAG, "uriInfo");
388 VERIFY_NON_NULL(optlist, TAG, "optlist");
390 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
392 /* split arg into Uri-* options */
394 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
396 if (uri.port != COAP_DEFAULT_PORT)
398 unsigned char portbuf[CA_PORT_BUFFER_SIZE] = { 0 };
399 int ret = coap_insert(optlist,
400 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
401 coap_encode_var_bytes(portbuf, uri.port),
406 return CA_STATUS_INVALID_PARAM;
410 if (uri.path.s && uri.path.length)
412 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
413 COAP_OPTION_URI_PATH, optlist);
414 if (CA_STATUS_OK != ret)
416 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
421 if (uri.query.s && uri.query.length)
423 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
425 if (CA_STATUS_OK != ret)
427 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
435 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
436 coap_list_t **optlist)
438 VERIFY_NON_NULL(optlist, TAG, "optlist");
440 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
442 // should never occur. Log just in case.
443 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
444 return CA_NOT_SUPPORTED;
446 else if (str && length)
448 unsigned char uriBuffer[CA_MAX_URI_LENGTH] = { 0 };
449 unsigned char *pBuf = uriBuffer;
450 size_t buflen = sizeof(uriBuffer);
451 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
452 coap_split_query(str, length, pBuf, &buflen);
459 int ret = coap_insert(optlist,
460 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
461 (char *)COAP_OPT_VALUE(pBuf)),
465 return CA_STATUS_INVALID_PARAM;
468 size_t optSize = COAP_OPT_SIZE(pBuf);
469 if ((prevIdx + optSize) < buflen)
478 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
479 return CA_STATUS_FAILED;
484 OIC_LOG(ERROR, TAG, "str or length is not available");
485 return CA_STATUS_FAILED;
491 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
494 VERIFY_NON_NULL_RET(info, TAG, "info", CA_STATUS_INVALID_PARAM);
496 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
500 OIC_LOG(ERROR, TAG, "optlist is null");
501 return CA_STATUS_INVALID_PARAM;
504 for (uint32_t i = 0; i < info->numOptions; i++)
506 if(!(info->options + i))
508 OIC_LOG(ERROR, TAG, "options is not available");
509 return CA_STATUS_FAILED;
512 uint32_t id = (info->options + i)->optionID;
513 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
515 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
519 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
520 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
521 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
522 int ret = coap_insert(optlist,
523 CACreateNewOptionNode(id, (info->options + i)->optionLength,
524 (info->options + i)->optionData),
528 return CA_STATUS_INVALID_PARAM;
533 // insert one extra header with the payload format if applicable.
534 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
536 coap_list_t* node = NULL;
537 uint8_t buf[3] = {0};
538 switch (info->payloadFormat)
540 case CA_FORMAT_APPLICATION_CBOR:
541 node = CACreateNewOptionNode(
542 COAP_OPTION_CONTENT_FORMAT,
543 coap_encode_var_bytes(buf, (uint16_t)COAP_MEDIATYPE_APPLICATION_CBOR),
547 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->payloadFormat);
551 OIC_LOG(ERROR, TAG, "format option not created");
552 return CA_STATUS_INVALID_PARAM;
554 int ret = coap_insert(optlist, node, CAOrderOpts);
558 OIC_LOG(ERROR, TAG, "format option not inserted in header");
559 return CA_STATUS_INVALID_PARAM;
562 if (CA_FORMAT_UNDEFINED != info->acceptFormat)
564 coap_list_t* node = NULL;
565 uint8_t buf[3] = {0};
566 switch (info->acceptFormat)
568 case CA_FORMAT_APPLICATION_CBOR:
569 node = CACreateNewOptionNode(
571 coap_encode_var_bytes(buf, (uint16_t)COAP_MEDIATYPE_APPLICATION_CBOR),
575 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->acceptFormat);
579 OIC_LOG(ERROR, TAG, "format option not created");
580 return CA_STATUS_INVALID_PARAM;
582 int ret = coap_insert(optlist, node, CAOrderOpts);
586 OIC_LOG(ERROR, TAG, "format option not inserted in header");
587 return CA_STATUS_INVALID_PARAM;
594 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
596 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
598 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
601 OIC_LOG(ERROR, TAG, "Out of memory");
604 memset(option, 0, sizeof(coap_option) + length + 1);
606 COAP_OPTION_KEY(*option) = key;
608 coap_option_def_t* def = coap_opt_def(key);
609 if (NULL != def && coap_is_var_bytes(def))
611 if (length > def->max)
613 // make sure we shrink the value so it fits the coap option definition
614 // by truncating the value, disregard the leading bytes.
615 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
616 def->key, length, def->max);
617 data = &(data[length-def->max]);
620 // Shrink the encoding length to a minimum size for coap
621 // options that support variable length encoding.
622 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
623 COAP_OPTION_DATA(*option),
624 coap_decode_var_bytes((unsigned char *)data, length));
628 COAP_OPTION_LENGTH(*option) = length;
629 memcpy(COAP_OPTION_DATA(*option), data, length);
632 /* we can pass NULL here as delete function since option is released automatically */
633 coap_list_t *node = coap_new_listnode(option, NULL);
637 OIC_LOG(ERROR, TAG, "node is NULL");
645 int CAOrderOpts(void *a, void *b)
649 return a < b ? -1 : 1;
652 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
657 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
660 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
665 while ((option = coap_option_next(&opt_iter)))
667 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
668 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
669 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
670 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type
671 && COAP_OPTION_ACCEPT != opt_iter.type
672 && COAP_OPTION_URI_HOST != opt_iter.type && COAP_OPTION_URI_PORT != opt_iter.type
673 && COAP_OPTION_ETAG != opt_iter.type && COAP_OPTION_MAXAGE != opt_iter.type
674 && COAP_OPTION_PROXY_URI != opt_iter.type && COAP_OPTION_PROXY_SCHEME != opt_iter.type)
683 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
684 uint32_t *outCode, CAInfo_t *outInfo)
686 VERIFY_NON_NULL(pdu, TAG, "pdu");
687 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
688 VERIFY_NON_NULL(outCode, TAG, "outCode");
689 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
691 coap_transport_type transport;
693 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
695 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu->hdr)[0] >> 4);
700 transport = coap_udp;
703 coap_opt_iterator_t opt_iter;
704 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL, transport);
708 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(pdu, transport));
711 // init HeaderOption list
712 uint32_t count = CAGetOptionCount(opt_iter);
713 memset(outInfo, 0, sizeof(*outInfo));
715 outInfo->numOptions = count;
718 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
721 outInfo->type = CA_MSG_NONCONFIRM;
722 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
730 outInfo->type = pdu->hdr->coap_hdr_udp_t.type;
733 outInfo->messageId = pdu->hdr->coap_hdr_udp_t.id;
734 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
735 outInfo->acceptFormat = CA_FORMAT_UNDEFINED;
740 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
741 if (NULL == outInfo->options)
743 OIC_LOG(ERROR, TAG, "Out of memory");
744 return CA_MEMORY_ALLOC_FAILED;
749 char optionResult[CA_MAX_URI_LENGTH] = {0};
751 uint32_t optionLength = 0;
752 bool isfirstsetflag = false;
753 bool isQueryBeingProcessed = false;
755 while ((option = coap_option_next(&opt_iter)))
757 char buf[COAP_MAX_PDU_SIZE] = {0};
759 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
760 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
763 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
764 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
766 if (false == isfirstsetflag)
768 isfirstsetflag = true;
769 optionResult[optionLength] = '/';
771 // Make sure there is enough room in the optionResult buffer
772 if ((optionLength + bufLength) < sizeof(optionResult))
774 memcpy(&optionResult[optionLength], buf, bufLength);
775 optionLength += bufLength;
784 if (COAP_OPTION_URI_PATH == opt_iter.type)
786 // Make sure there is enough room in the optionResult buffer
787 if (optionLength < sizeof(optionResult))
789 optionResult[optionLength] = '/';
797 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
799 if (false == isQueryBeingProcessed)
801 // Make sure there is enough room in the optionResult buffer
802 if (optionLength < sizeof(optionResult))
804 optionResult[optionLength] = '?';
806 isQueryBeingProcessed = true;
815 // Make sure there is enough room in the optionResult buffer
816 if (optionLength < sizeof(optionResult))
818 optionResult[optionLength] = ';';
827 // Make sure there is enough room in the optionResult buffer
828 if ((optionLength + bufLength) < sizeof(optionResult))
830 memcpy(&optionResult[optionLength], buf, bufLength);
831 optionLength += bufLength;
839 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
840 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
842 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
844 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
846 if (1 == COAP_OPT_LENGTH(option))
848 outInfo->payloadFormat = CAConvertFormat((uint8_t)buf[0]);
852 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
853 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
854 opt_iter.type, (uint8_t)buf[0]);
857 else if (COAP_OPTION_ACCEPT == opt_iter.type)
859 if (1 == COAP_OPT_LENGTH(option))
861 outInfo->acceptFormat = CAConvertFormat((uint8_t)buf[0]);
865 outInfo->acceptFormat = CA_FORMAT_UNSUPPORTED;
867 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
868 opt_iter.type, (uint8_t)buf[0]);
870 else if (COAP_OPTION_URI_PORT == opt_iter.type ||
871 COAP_OPTION_URI_HOST == opt_iter.type ||
872 COAP_OPTION_ETAG == opt_iter.type ||
873 COAP_OPTION_MAXAGE == opt_iter.type ||
874 COAP_OPTION_PROXY_URI == opt_iter.type ||
875 COAP_OPTION_PROXY_SCHEME== opt_iter.type)
877 OIC_LOG_V(INFO, TAG, "option[%d] has an unsupported format [%d]",
878 opt_iter.type, (uint8_t)buf[0]);
884 if (bufLength <= sizeof(outInfo->options[0].optionData))
886 outInfo->options[idx].optionID = opt_iter.type;
887 outInfo->options[idx].optionLength = bufLength;
888 outInfo->options[idx].protocolID = CA_COAP_ID;
889 memcpy(outInfo->options[idx].optionData, buf, bufLength);
897 unsigned char* token = NULL;
898 unsigned int token_length = 0;
899 coap_get_token(pdu->hdr, transport, &token, &token_length);
902 if (token_length > 0)
904 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", token_length);
905 outInfo->token = (char *) OICMalloc(token_length);
906 if (NULL == outInfo->token)
908 OIC_LOG(ERROR, TAG, "Out of memory");
909 OICFree(outInfo->options);
910 return CA_MEMORY_ALLOC_FAILED;
912 memcpy(outInfo->token, token, token_length);
915 outInfo->tokenLength = token_length;
920 if (coap_get_data(pdu, &dataSize, &data))
922 OIC_LOG(DEBUG, TAG, "inside pdu->data");
923 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
924 if (NULL == outInfo->payload)
926 OIC_LOG(ERROR, TAG, "Out of memory");
927 OICFree(outInfo->options);
928 OICFree(outInfo->token);
929 return CA_MEMORY_ALLOC_FAILED;
931 memcpy(outInfo->payload, pdu->data, dataSize);
932 outInfo->payloadSize = dataSize;
935 if (optionResult[0] != '\0')
937 OIC_LOG_V(DEBUG, TAG, "URL length:%zu", strlen(optionResult));
938 outInfo->resourceUri = OICStrdup(optionResult);
939 if (!outInfo->resourceUri)
941 OIC_LOG(ERROR, TAG, "Out of memory");
942 OICFree(outInfo->options);
943 OICFree(outInfo->token);
944 return CA_MEMORY_ALLOC_FAILED;
951 OIC_LOG(ERROR, TAG, "buffer too small");
952 OICFree(outInfo->options);
953 return CA_STATUS_FAILED;
956 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo,
957 const CAEndpoint_t *endpoint)
959 VERIFY_NON_NULL(pdu_hdr, TAG, "pdu_hdr");
960 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
961 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
963 coap_transport_type transport;
965 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
967 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu_hdr)[0] >> 4);
972 transport = coap_udp;
975 unsigned char* token = NULL;
976 unsigned int token_length = 0;
977 coap_get_token(pdu_hdr, transport, &token, &token_length);
980 if (token_length > 0)
982 OIC_LOG_V(DEBUG, TAG, "token len:%d", token_length);
983 outInfo->token = (char *) OICMalloc(token_length);
984 if (NULL == outInfo->token)
986 OIC_LOG(ERROR, TAG, "Out of memory");
987 return CA_MEMORY_ALLOC_FAILED;
989 memcpy(outInfo->token, token, token_length);
992 outInfo->tokenLength = token_length;
997 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
999 VERIFY_NON_NULL(token, TAG, "token");
1001 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
1003 OIC_LOG(ERROR, TAG, "invalid token length");
1004 return CA_STATUS_INVALID_PARAM;
1007 // memory allocation
1008 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
1011 OIC_LOG(ERROR, TAG, "Out of memory");
1012 return CA_MEMORY_ALLOC_FAILED;
1015 OCFillRandomMem((uint8_t *)temp, tokenLength);
1020 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
1021 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
1023 return CA_STATUS_OK;
1026 void CADestroyTokenInternal(CAToken_t token)
1031 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
1032 uint8_t *option, uint32_t buflen)
1036 OIC_LOG(ERROR, TAG, "buflen 0");
1042 OIC_LOG(ERROR, TAG, "option buffer too small");
1046 coap_option_def_t* def = coap_opt_def(key);
1047 if (NULL != def && coap_is_var_bytes(def) && 0 == len)
1049 // A 0 length option is permitted in CoAP but the
1050 // rest or the stack is unaware of variable byte encoding
1051 // 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)