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 static char g_chproxyUri[CA_MAX_URI_LENGTH];
56 CAResult_t CASetProxyUri(const char *uri)
58 VERIFY_NON_NULL(uri, TAG, "uri");
59 OICStrcpy(g_chproxyUri, sizeof (g_chproxyUri), uri);
63 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
64 CARequestInfo_t *outReqInfo)
66 VERIFY_NON_NULL(pdu, TAG, "pdu");
67 VERIFY_NON_NULL(outReqInfo, TAG, "outReqInfo");
69 uint32_t code = CA_NOT_FOUND;
70 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outReqInfo->info));
71 outReqInfo->method = code;
76 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo,
77 const CAEndpoint_t *endpoint)
79 VERIFY_NON_NULL(pdu, TAG, "pdu");
80 VERIFY_NON_NULL(outResInfo, TAG, "outResInfo");
82 uint32_t code = CA_NOT_FOUND;
83 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outResInfo->info));
84 outResInfo->result = code;
89 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
90 CAErrorInfo_t *errorInfo)
92 VERIFY_NON_NULL(pdu, TAG, "pdu");
95 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &errorInfo->info);
100 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info, const CAEndpoint_t *endpoint,
101 coap_list_t **optlist, coap_transport_t *transport)
103 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
104 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
105 VERIFY_NON_NULL_RET(optlist, TAG, "optlist", NULL);
107 OIC_LOG_V(DEBUG, TAG, "generate pdu for [%d]adapter, [%d]flags",
108 endpoint->adapter, endpoint->flags);
110 coap_pdu_t *pdu = NULL;
112 // RESET have to use only 4byte (empty message)
113 // and ACKNOWLEDGE can use empty message when code is empty.
114 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
116 if (CA_EMPTY != code)
118 OIC_LOG(ERROR, TAG, "reset is not empty message");
122 if (info->payloadSize > 0 || info->payload || info->token || info->tokenLength > 0)
124 OIC_LOG(ERROR, TAG, "Empty message has unnecessary data after messageID");
128 OIC_LOG(DEBUG, TAG, "code is empty");
129 if (!(pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, NULL, transport)))
131 OIC_LOG(ERROR, TAG, "pdu NULL");
137 if (info->resourceUri)
139 OIC_LOG_V(DEBUG, TAG, "uri : %s", info->resourceUri);
141 uint32_t length = strlen(info->resourceUri);
142 if (CA_MAX_URI_LENGTH < length)
144 OIC_LOG(ERROR, TAG, "URI len err");
148 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
149 char *coapUri = (char *) OICCalloc(1, uriLength);
152 OIC_LOG(ERROR, TAG, "out of memory");
155 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
156 OICStrcat(coapUri, uriLength, info->resourceUri);
158 // parsing options in URI
159 CAResult_t res = CAParseURI(coapUri, optlist);
160 if (CA_STATUS_OK != res)
168 // parsing options in HeadOption
169 CAResult_t ret = CAParseHeadOption(code, info, optlist);
170 if (CA_STATUS_OK != ret)
175 pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, *optlist, transport);
178 OIC_LOG(ERROR, TAG, "pdu NULL");
183 // pdu print method : coap_show_pdu(pdu);
187 coap_pdu_t *CAParsePDU(const char *data, size_t length, uint32_t *outCode,
188 const CAEndpoint_t *endpoint)
190 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
191 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
193 coap_transport_t transport = COAP_UDP;
195 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
197 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)data)[0] >> 4);
202 coap_pdu_init2(0, 0, ntohs(COAP_INVALID_TID), length, transport);
205 OIC_LOG(ERROR, TAG, "outpdu is null");
209 OIC_LOG_V(DEBUG, TAG, "pdu parse-transport type : %d", transport);
211 int ret = coap_pdu_parse2((unsigned char *) data, length, outpdu, transport);
212 OIC_LOG_V(DEBUG, TAG, "pdu parse ret: %d", ret);
215 OIC_LOG(ERROR, TAG, "pdu parse failed");
220 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
222 OIC_LOG(INFO, TAG, "there is no version info in coap header");
227 if (outpdu->transport_hdr->udp.version != COAP_DEFAULT_VERSION)
229 OIC_LOG_V(ERROR, TAG, "coap version is not available : %d",
230 outpdu->transport_hdr->udp.version);
233 if (outpdu->transport_hdr->udp.token_length > CA_MAX_TOKEN_LEN)
235 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
236 outpdu->transport_hdr->udp.token_length);
243 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(outpdu, transport));
249 coap_delete_pdu(outpdu);
253 coap_pdu_t *CAGeneratePDUImpl(code_t code, const CAInfo_t *info,
254 const CAEndpoint_t *endpoint, coap_list_t *options,
255 coap_transport_t *transport)
257 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
258 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
259 VERIFY_NON_NULL_RET(transport, TAG, "transport", NULL);
261 unsigned int length = COAP_MAX_PDU_SIZE;
263 unsigned int msgLength = 0;
264 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
268 unsigned short prevOptNumber = 0;
269 for (coap_list_t *opt = options; opt; opt = opt->next)
271 unsigned short curOptNumber = COAP_OPTION_KEY(*(coap_option *) opt->data);
272 if (prevOptNumber > curOptNumber)
274 OIC_LOG(ERROR, TAG, "option list is wrong");
278 size_t optValueLen = COAP_OPTION_LENGTH(*(coap_option *) opt->data);
279 size_t optLength = coap_get_opt_header_length(curOptNumber - prevOptNumber, optValueLen);
282 OIC_LOG(ERROR, TAG, "Reserved for the Payload marker for the option");
285 msgLength += optLength;
286 prevOptNumber = curOptNumber;
287 OIC_LOG_V(DEBUG, TAG, "curOptNumber[%d], prevOptNumber[%d], optValueLen[%zu], "
288 "optLength[%zu], msgLength[%d]",
289 curOptNumber, prevOptNumber, optValueLen, optLength, msgLength);
293 if (info->payloadSize > 0)
295 msgLength = msgLength + info->payloadSize + PAYLOAD_MARKER;
297 *transport = coap_get_tcp_header_type_from_size(msgLength);
298 length = msgLength + coap_get_tcp_header_length_for_transport(*transport)
304 *transport = COAP_UDP;
307 coap_pdu_t *pdu = coap_new_pdu2(*transport, length);
311 OIC_LOG(ERROR, TAG, "malloc failed");
315 OIC_LOG_V(DEBUG, TAG, "transport type: %d, payload size: %zu",
316 *transport, info->payloadSize);
319 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
321 coap_add_length(pdu, *transport, msgLength);
326 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info->messageId);
327 uint16_t message_id = 0;
328 if (0 == info->messageId)
330 /* initialize message id */
331 prng((uint8_t * ) &message_id, sizeof(message_id));
333 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
337 /* use saved message id */
338 message_id = info->messageId;
340 pdu->transport_hdr->udp.id = message_id;
341 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->transport_hdr->udp.id);
343 pdu->transport_hdr->udp.type = info->type;
346 coap_add_code(pdu, *transport, code);
348 if (info->token && CA_EMPTY != code)
350 uint32_t tokenLength = info->tokenLength;
351 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
352 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info->token, tokenLength);
354 int32_t ret = coap_add_token2(pdu, tokenLength, (unsigned char *)info->token, *transport);
357 OIC_LOG(ERROR, TAG, "can't add token");
362 if (CA_ADAPTER_GATT_BTLE != endpoint->adapter
364 && !CAIsSupportedCoAPOverTCP(endpoint->adapter)
368 // option list will be added in blockwise-transfer
375 for (coap_list_t *opt = options; opt; opt = opt->next)
377 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
378 COAP_OPTION_DATA(*(coap_option *) opt->data));
380 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length", pdu->length);
381 if (0 == coap_add_option2(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
382 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
383 COAP_OPTION_DATA(*(coap_option *) opt->data), *transport))
385 OIC_LOG(ERROR, TAG, "coap_add_option2 has failed");
386 coap_delete_pdu(pdu);
392 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length after option", pdu->length);
394 if (NULL != info->payload && 0 < info->payloadSize)
396 OIC_LOG(DEBUG, TAG, "payload is added");
397 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
403 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
405 VERIFY_NON_NULL(uriInfo, TAG, "uriInfo");
406 VERIFY_NON_NULL(optlist, TAG, "optlist");
408 /* split arg into Uri-* options */
410 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
412 if (uri.port != COAP_DEFAULT_PORT)
414 unsigned char portbuf[CA_ENCODE_BUFFER_SIZE] = { 0 };
415 int ret = coap_insert(optlist,
416 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
417 coap_encode_var_bytes(portbuf, uri.port),
422 return CA_STATUS_INVALID_PARAM;
426 if (uri.path.s && uri.path.length)
428 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
429 COAP_OPTION_URI_PATH, optlist);
430 if (CA_STATUS_OK != ret)
432 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
437 if (uri.query.s && uri.query.length)
439 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
441 if (CA_STATUS_OK != ret)
443 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
451 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
452 coap_list_t **optlist)
454 VERIFY_NON_NULL(optlist, TAG, "optlist");
456 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
458 // should never occur. Log just in case.
459 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
460 return CA_NOT_SUPPORTED;
462 else if (str && length)
464 unsigned char uriBuffer[CA_MAX_URI_LENGTH] = { 0 };
465 unsigned char *pBuf = uriBuffer;
466 size_t buflen = sizeof(uriBuffer);
467 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
468 coap_split_query(str, length, pBuf, &buflen);
475 int ret = coap_insert(optlist,
476 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
477 (char *)COAP_OPT_VALUE(pBuf)),
481 return CA_STATUS_INVALID_PARAM;
484 size_t optSize = COAP_OPT_SIZE(pBuf);
485 if ((prevIdx + optSize) < buflen)
494 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
495 return CA_STATUS_FAILED;
500 OIC_LOG(ERROR, TAG, "str or length is not available");
501 return CA_STATUS_FAILED;
507 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
510 VERIFY_NON_NULL_RET(info, TAG, "info", CA_STATUS_INVALID_PARAM);
512 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
516 OIC_LOG(ERROR, TAG, "optlist is null");
517 return CA_STATUS_INVALID_PARAM;
520 for (uint32_t i = 0; i < info->numOptions; i++)
522 if(!(info->options + i))
524 OIC_LOG(ERROR, TAG, "options is not available");
525 return CA_STATUS_FAILED;
528 uint32_t id = (info->options + i)->optionID;
529 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
531 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
535 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
536 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
537 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
538 int ret = coap_insert(optlist,
539 CACreateNewOptionNode(id, (info->options + i)->optionLength,
540 (info->options + i)->optionData),
544 return CA_STATUS_INVALID_PARAM;
549 // insert one extra header with the payload format if applicable.
550 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
552 coap_list_t* node = NULL;
553 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
554 switch (info->payloadFormat)
556 case CA_FORMAT_APPLICATION_CBOR:
557 node = CACreateNewOptionNode(
558 COAP_OPTION_CONTENT_FORMAT,
559 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
563 OIC_LOG_V(ERROR, TAG, "Content format option:[%d] not supported", info->payloadFormat);
567 OIC_LOG(ERROR, TAG, "Content format option not created");
568 return CA_STATUS_INVALID_PARAM;
570 int ret = coap_insert(optlist, node, CAOrderOpts);
574 OIC_LOG(ERROR, TAG, "Content format option not inserted in header");
575 return CA_STATUS_INVALID_PARAM;
578 if (CA_FORMAT_UNDEFINED != info->acceptFormat)
580 coap_list_t* node = NULL;
581 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
582 switch (info->acceptFormat)
584 case CA_FORMAT_APPLICATION_CBOR:
585 node = CACreateNewOptionNode(
587 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
591 OIC_LOG_V(ERROR, TAG, "Accept format option:[%d] not supported", info->acceptFormat);
595 OIC_LOG(ERROR, TAG, "Accept format option not created");
596 return CA_STATUS_INVALID_PARAM;
598 int ret = coap_insert(optlist, node, CAOrderOpts);
602 OIC_LOG(ERROR, TAG, "Accept format option not inserted in header");
603 return CA_STATUS_INVALID_PARAM;
610 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
612 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
614 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
617 OIC_LOG(ERROR, TAG, "Out of memory");
620 memset(option, 0, sizeof(coap_option) + length + 1);
622 COAP_OPTION_KEY(*option) = key;
624 coap_option_def_t* def = coap_opt_def(key);
625 if (NULL != def && coap_is_var_bytes(def))
627 if (length > def->max)
629 // make sure we shrink the value so it fits the coap option definition
630 // by truncating the value, disregard the leading bytes.
631 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
632 def->key, length, def->max);
633 data = &(data[length-def->max]);
636 // Shrink the encoding length to a minimum size for coap
637 // options that support variable length encoding.
638 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
639 COAP_OPTION_DATA(*option),
640 coap_decode_var_bytes((unsigned char *)data, length));
644 COAP_OPTION_LENGTH(*option) = length;
645 memcpy(COAP_OPTION_DATA(*option), data, length);
648 /* we can pass NULL here as delete function since option is released automatically */
649 coap_list_t *node = coap_new_listnode(option, NULL);
653 OIC_LOG(ERROR, TAG, "node is NULL");
661 int CAOrderOpts(void *a, void *b)
665 return a < b ? -1 : 1;
668 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
673 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
676 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
679 coap_opt_t *option = NULL;
681 while ((option = coap_option_next(&opt_iter)))
683 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
684 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
685 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
686 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type
687 && COAP_OPTION_ACCEPT != opt_iter.type
688 && COAP_OPTION_URI_HOST != opt_iter.type && COAP_OPTION_URI_PORT != opt_iter.type
689 && COAP_OPTION_ETAG != opt_iter.type && COAP_OPTION_MAXAGE != opt_iter.type
690 && COAP_OPTION_PROXY_SCHEME != opt_iter.type)
699 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
700 uint32_t *outCode, CAInfo_t *outInfo)
702 VERIFY_NON_NULL(pdu, TAG, "pdu");
703 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
704 VERIFY_NON_NULL(outCode, TAG, "outCode");
705 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
707 coap_transport_t transport;
709 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
711 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu->transport_hdr)[0] >> 4);
716 transport = COAP_UDP;
719 coap_opt_iterator_t opt_iter;
720 coap_option_iterator_init2((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL, transport);
724 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(pdu, transport));
727 // init HeaderOption list
728 uint32_t count = CAGetOptionCount(opt_iter);
729 memset(outInfo, 0, sizeof(*outInfo));
731 outInfo->numOptions = count;
734 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
737 outInfo->type = CA_MSG_NONCONFIRM;
738 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
746 outInfo->type = pdu->transport_hdr->udp.type;
749 outInfo->messageId = pdu->transport_hdr->udp.id;
750 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
751 outInfo->acceptFormat = CA_FORMAT_UNDEFINED;
756 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
757 if (NULL == outInfo->options)
759 OIC_LOG(ERROR, TAG, "Out of memory");
760 return CA_MEMORY_ALLOC_FAILED;
764 coap_opt_t *option = NULL;
765 char optionResult[CA_MAX_URI_LENGTH] = {0};
767 uint32_t optionLength = 0;
768 bool isfirstsetflag = false;
769 bool isQueryBeingProcessed = false;
770 bool isProxyRequest = false;
772 while ((option = coap_option_next(&opt_iter)))
774 char buf[COAP_MAX_PDU_SIZE] = {0};
776 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
777 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
780 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
781 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
783 if (false == isfirstsetflag)
785 isfirstsetflag = true;
786 optionResult[optionLength] = '/';
788 // Make sure there is enough room in the optionResult buffer
789 if ((optionLength + bufLength) < sizeof(optionResult))
791 memcpy(&optionResult[optionLength], buf, bufLength);
792 optionLength += bufLength;
801 if (COAP_OPTION_URI_PATH == opt_iter.type)
803 // Make sure there is enough room in the optionResult buffer
804 if (optionLength < sizeof(optionResult))
806 optionResult[optionLength] = '/';
814 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
816 if (false == isQueryBeingProcessed)
818 // Make sure there is enough room in the optionResult buffer
819 if (optionLength < sizeof(optionResult))
821 optionResult[optionLength] = '?';
823 isQueryBeingProcessed = true;
832 // Make sure there is enough room in the optionResult buffer
833 if (optionLength < sizeof(optionResult))
835 optionResult[optionLength] = ';';
844 // Make sure there is enough room in the optionResult buffer
845 if ((optionLength + bufLength) < sizeof(optionResult))
847 memcpy(&optionResult[optionLength], buf, bufLength);
848 optionLength += bufLength;
856 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
857 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
859 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
861 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
863 if (1 == COAP_OPT_LENGTH(option))
865 outInfo->payloadFormat = CAConvertFormat((uint8_t)buf[0]);
869 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
870 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
871 opt_iter.type, (uint8_t)buf[0]);
874 else if (COAP_OPTION_ACCEPT == opt_iter.type)
876 if (1 == COAP_OPT_LENGTH(option))
878 outInfo->acceptFormat = CAConvertFormat((uint8_t)buf[0]);
882 outInfo->acceptFormat = CA_FORMAT_UNSUPPORTED;
884 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
885 opt_iter.type, (uint8_t)buf[0]);
887 else if (COAP_OPTION_URI_PORT == opt_iter.type ||
888 COAP_OPTION_URI_HOST == opt_iter.type ||
889 COAP_OPTION_ETAG == opt_iter.type ||
890 COAP_OPTION_MAXAGE == opt_iter.type ||
891 COAP_OPTION_PROXY_SCHEME== opt_iter.type)
893 OIC_LOG_V(INFO, TAG, "option[%d] has an unsupported format [%d]",
894 opt_iter.type, (uint8_t)buf[0]);
898 if (COAP_OPTION_PROXY_URI == opt_iter.type)
900 isProxyRequest = true;
904 if (bufLength <= sizeof(outInfo->options[0].optionData))
906 outInfo->options[idx].optionID = opt_iter.type;
907 outInfo->options[idx].optionLength = bufLength;
908 outInfo->options[idx].protocolID = CA_COAP_ID;
909 memcpy(outInfo->options[idx].optionData, buf, bufLength);
917 unsigned char* token = NULL;
918 unsigned int token_length = 0;
919 coap_get_token2(pdu->transport_hdr, transport, &token, &token_length);
922 if (token_length > 0)
924 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", token_length);
925 outInfo->token = (char *) OICMalloc(token_length);
926 if (NULL == outInfo->token)
928 OIC_LOG(ERROR, TAG, "Out of memory");
929 OICFree(outInfo->options);
930 return CA_MEMORY_ALLOC_FAILED;
932 memcpy(outInfo->token, token, token_length);
935 outInfo->tokenLength = token_length;
940 if (coap_get_data(pdu, &dataSize, &data))
942 OIC_LOG(DEBUG, TAG, "inside pdu->data");
943 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
944 if (NULL == outInfo->payload)
946 OIC_LOG(ERROR, TAG, "Out of memory");
947 OICFree(outInfo->options);
948 OICFree(outInfo->token);
949 return CA_MEMORY_ALLOC_FAILED;
951 memcpy(outInfo->payload, pdu->data, dataSize);
952 outInfo->payloadSize = dataSize;
955 if (optionResult[0] != '\0')
957 OIC_LOG_V(DEBUG, TAG, "URL length:%zu", strlen(optionResult));
958 outInfo->resourceUri = OICStrdup(optionResult);
959 if (!outInfo->resourceUri)
961 OIC_LOG(ERROR, TAG, "Out of memory");
962 OICFree(outInfo->options);
963 OICFree(outInfo->token);
964 return CA_MEMORY_ALLOC_FAILED;
967 else if(isProxyRequest && g_chproxyUri[0] != '\0')
970 * A request for Proxy will not have any uri element as per CoAP specs
971 * and only COAP_OPTION_PROXY_URI will be present. Use preset proxy uri
974 outInfo->resourceUri = OICStrdup(g_chproxyUri);
975 if (!outInfo->resourceUri)
977 OIC_LOG(ERROR, TAG, "Out of memory");
978 OICFree(outInfo->options);
979 OICFree(outInfo->token);
980 return CA_MEMORY_ALLOC_FAILED;
986 OIC_LOG(ERROR, TAG, "buffer too small");
987 OICFree(outInfo->options);
988 return CA_STATUS_FAILED;
991 CAResult_t CAGetTokenFromPDU(const coap_hdr_transport_t *pdu_hdr,
993 const CAEndpoint_t *endpoint)
995 VERIFY_NON_NULL(pdu_hdr, TAG, "pdu_hdr");
996 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
997 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
999 coap_transport_t transport = COAP_UDP;
1001 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
1003 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu_hdr)[0] >> 4);
1007 unsigned char* token = NULL;
1008 unsigned int token_length = 0;
1009 coap_get_token2(pdu_hdr, transport, &token, &token_length);
1012 if (token_length > 0)
1014 OIC_LOG_V(DEBUG, TAG, "token len:%d", token_length);
1015 outInfo->token = (char *) OICMalloc(token_length);
1016 if (NULL == outInfo->token)
1018 OIC_LOG(ERROR, TAG, "Out of memory");
1019 return CA_MEMORY_ALLOC_FAILED;
1021 memcpy(outInfo->token, token, token_length);
1024 outInfo->tokenLength = token_length;
1026 return CA_STATUS_OK;
1029 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
1031 VERIFY_NON_NULL(token, TAG, "token");
1033 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
1035 OIC_LOG(ERROR, TAG, "invalid token length");
1036 return CA_STATUS_INVALID_PARAM;
1039 // memory allocation
1040 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
1043 OIC_LOG(ERROR, TAG, "Out of memory");
1044 return CA_MEMORY_ALLOC_FAILED;
1047 if (!OCGetRandomBytes((uint8_t *)temp, tokenLength))
1049 OIC_LOG(ERROR, TAG, "Failed to generate random token");
1050 return CA_STATUS_FAILED;
1056 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
1057 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
1059 return CA_STATUS_OK;
1062 void CADestroyTokenInternal(CAToken_t token)
1067 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
1068 uint8_t *option, uint32_t buflen)
1072 OIC_LOG(ERROR, TAG, "buflen 0");
1078 OIC_LOG(ERROR, TAG, "option buffer too small");
1082 coap_option_def_t* def = coap_opt_def(key);
1083 if (NULL != def && coap_is_var_bytes(def) && 0 == len)
1085 // A 0 length option is permitted in CoAP but the
1086 // rest or the stack is unaware of variable byte encoding
1087 // should remain that way so a 0 byte of length 1 is inserted.
1093 memcpy(option, data, len);
1100 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
1102 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_MSG_NONCONFIRM);
1104 // pdu minimum size is 4 byte.
1105 if (size < CA_PDU_MIN_SIZE)
1107 OIC_LOG(ERROR, TAG, "min size");
1108 return CA_MSG_NONCONFIRM;
1111 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1113 return (CAMessageType_t) hdr->type;
1116 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
1118 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", 0);
1120 // pdu minimum size is 4 byte.
1121 if (size < CA_PDU_MIN_SIZE)
1123 OIC_LOG(ERROR, TAG, "min size");
1127 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1132 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
1134 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_NOT_FOUND);
1136 // pdu minimum size is 4 byte.
1137 if (size < CA_PDU_MIN_SIZE)
1139 OIC_LOG(ERROR, TAG, "min size");
1140 return CA_NOT_FOUND;
1143 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1145 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);
1148 CAPayloadFormat_t CAConvertFormat(uint8_t format)
1152 case COAP_MEDIATYPE_TEXT_PLAIN:
1153 return CA_FORMAT_TEXT_PLAIN;
1154 case COAP_MEDIATYPE_APPLICATION_LINK_FORMAT:
1155 return CA_FORMAT_APPLICATION_LINK_FORMAT;
1156 case COAP_MEDIATYPE_APPLICATION_XML:
1157 return CA_FORMAT_APPLICATION_XML;
1158 case COAP_MEDIATYPE_APPLICATION_OCTET_STREAM:
1159 return CA_FORMAT_APPLICATION_OCTET_STREAM;
1160 case COAP_MEDIATYPE_APPLICATION_RDF_XML:
1161 return CA_FORMAT_APPLICATION_RDF_XML;
1162 case COAP_MEDIATYPE_APPLICATION_EXI:
1163 return CA_FORMAT_APPLICATION_EXI;
1164 case COAP_MEDIATYPE_APPLICATION_JSON:
1165 return CA_FORMAT_APPLICATION_JSON;
1166 case COAP_MEDIATYPE_APPLICATION_CBOR:
1167 return CA_FORMAT_APPLICATION_CBOR;
1169 return CA_FORMAT_UNSUPPORTED;
1174 bool CAIsSupportedBlockwiseTransfer(CATransportAdapter_t adapter)
1176 if (CA_ADAPTER_IP & adapter || CA_ADAPTER_NFC & adapter
1177 || CA_DEFAULT_ADAPTER == adapter)
1186 bool CAIsSupportedCoAPOverTCP(CATransportAdapter_t adapter)
1188 if (CA_ADAPTER_GATT_BTLE & adapter || CA_ADAPTER_RFCOMM_BTEDR & adapter
1189 || CA_ADAPTER_TCP & adapter || CA_DEFAULT_ADAPTER == adapter)