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://[::]/";
55 static char g_chproxyUri[CA_MAX_URI_LENGTH];
57 CAResult_t CASetProxyUri(const char *uri)
59 VERIFY_NON_NULL(uri, TAG, "uri");
60 OICStrcpy(g_chproxyUri, sizeof (g_chproxyUri), uri);
65 CAResult_t CAGetRequestInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
66 CARequestInfo_t *outReqInfo)
68 VERIFY_NON_NULL(pdu, TAG, "pdu");
69 VERIFY_NON_NULL(outReqInfo, TAG, "outReqInfo");
71 uint32_t code = CA_NOT_FOUND;
72 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outReqInfo->info));
73 outReqInfo->method = code;
78 CAResult_t CAGetResponseInfoFromPDU(const coap_pdu_t *pdu, CAResponseInfo_t *outResInfo,
79 const CAEndpoint_t *endpoint)
81 VERIFY_NON_NULL(pdu, TAG, "pdu");
82 VERIFY_NON_NULL(outResInfo, TAG, "outResInfo");
84 uint32_t code = CA_NOT_FOUND;
85 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &(outResInfo->info));
86 outResInfo->result = code;
91 CAResult_t CAGetErrorInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
92 CAErrorInfo_t *errorInfo)
94 VERIFY_NON_NULL(pdu, TAG, "pdu");
97 CAResult_t ret = CAGetInfoFromPDU(pdu, endpoint, &code, &errorInfo->info);
102 coap_pdu_t *CAGeneratePDU(uint32_t code, const CAInfo_t *info, const CAEndpoint_t *endpoint,
103 coap_list_t **optlist, coap_transport_type *transport)
105 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
106 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
107 VERIFY_NON_NULL_RET(optlist, TAG, "optlist", NULL);
109 coap_pdu_t *pdu = NULL;
111 // RESET have to use only 4byte (empty message)
112 // and ACKNOWLEDGE can use empty message when code is empty.
113 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
115 if (CA_EMPTY != code)
117 OIC_LOG(ERROR, TAG, "reset is not empty message");
121 if (info->payloadSize > 0 || info->payload || info->token || info->tokenLength > 0)
123 OIC_LOG(ERROR, TAG, "Empty message has unnecessary data after messageID");
127 OIC_LOG(DEBUG, TAG, "code is empty");
128 if (!(pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, NULL, transport)))
130 OIC_LOG(ERROR, TAG, "pdu NULL");
136 if (info->resourceUri)
138 uint32_t length = strlen(info->resourceUri);
139 if (CA_MAX_URI_LENGTH < length)
141 OIC_LOG(ERROR, TAG, "URI len err");
145 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
146 char *coapUri = (char *) OICCalloc(1, uriLength);
149 OIC_LOG(ERROR, TAG, "out of memory");
152 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
153 OICStrcat(coapUri, uriLength, info->resourceUri);
155 // parsing options in URI
156 CAResult_t res = CAParseURI(coapUri, optlist);
157 if (CA_STATUS_OK != res)
165 // parsing options in HeadOption
166 CAResult_t ret = CAParseHeadOption(code, info, optlist);
167 if (CA_STATUS_OK != ret)
172 pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, *optlist, transport);
175 OIC_LOG(ERROR, TAG, "pdu NULL");
180 // pdu print method : coap_show_pdu(pdu);
184 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode,
185 const CAEndpoint_t *endpoint)
187 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
188 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
190 coap_transport_type transport;
192 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
194 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)data)[0] >> 4);
199 transport = coap_udp;
202 coap_pdu_t *outpdu = coap_new_pdu(transport, length);
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_parse((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->hdr->coap_hdr_udp_t.version != COAP_DEFAULT_VERSION)
229 OIC_LOG_V(ERROR, TAG, "coap version is not available : %d",
230 outpdu->hdr->coap_hdr_udp_t.version);
233 if (outpdu->hdr->coap_hdr_udp_t.token_length > CA_MAX_TOKEN_LEN)
235 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
236 outpdu->hdr->coap_hdr_udp_t.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_type *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_pdu(*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->hdr->coap_hdr_udp_t.id = message_id;
341 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->hdr->coap_hdr_udp_t.id);
343 pdu->hdr->coap_hdr_udp_t.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_token(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 coap_add_option(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);
387 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length after option", pdu->length);
389 if (NULL != info->payload && 0 < info->payloadSize)
391 OIC_LOG(DEBUG, TAG, "payload is added");
392 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
398 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
400 VERIFY_NON_NULL(uriInfo, TAG, "uriInfo");
401 VERIFY_NON_NULL(optlist, TAG, "optlist");
403 OIC_LOG_V(DEBUG, TAG, "url : %s", uriInfo);
405 /* split arg into Uri-* options */
407 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
409 if (uri.port != COAP_DEFAULT_PORT)
411 unsigned char portbuf[CA_ENCODE_BUFFER_SIZE] = { 0 };
412 int ret = coap_insert(optlist,
413 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
414 coap_encode_var_bytes(portbuf, uri.port),
419 return CA_STATUS_INVALID_PARAM;
423 if (uri.path.s && uri.path.length)
425 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
426 COAP_OPTION_URI_PATH, optlist);
427 if (CA_STATUS_OK != ret)
429 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
434 if (uri.query.s && uri.query.length)
436 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
438 if (CA_STATUS_OK != ret)
440 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
448 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
449 coap_list_t **optlist)
451 VERIFY_NON_NULL(optlist, TAG, "optlist");
453 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
455 // should never occur. Log just in case.
456 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
457 return CA_NOT_SUPPORTED;
459 else if (str && length)
461 unsigned char uriBuffer[CA_MAX_URI_LENGTH] = { 0 };
462 unsigned char *pBuf = uriBuffer;
463 size_t buflen = sizeof(uriBuffer);
464 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &buflen) :
465 coap_split_query(str, length, pBuf, &buflen);
472 int ret = coap_insert(optlist,
473 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
474 (char *)COAP_OPT_VALUE(pBuf)),
478 return CA_STATUS_INVALID_PARAM;
481 size_t optSize = COAP_OPT_SIZE(pBuf);
482 if ((prevIdx + optSize) < buflen)
491 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
492 return CA_STATUS_FAILED;
497 OIC_LOG(ERROR, TAG, "str or length is not available");
498 return CA_STATUS_FAILED;
504 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
507 VERIFY_NON_NULL_RET(info, TAG, "info", CA_STATUS_INVALID_PARAM);
509 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
513 OIC_LOG(ERROR, TAG, "optlist is null");
514 return CA_STATUS_INVALID_PARAM;
517 for (uint32_t i = 0; i < info->numOptions; i++)
519 if(!(info->options + i))
521 OIC_LOG(ERROR, TAG, "options is not available");
522 return CA_STATUS_FAILED;
525 uint32_t id = (info->options + i)->optionID;
526 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
528 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
532 OIC_LOG_V(DEBUG, TAG, "Head opt ID: %d", id);
533 OIC_LOG_V(DEBUG, TAG, "Head opt data: %s", (info->options + i)->optionData);
534 OIC_LOG_V(DEBUG, TAG, "Head opt length: %d", (info->options + i)->optionLength);
535 int ret = coap_insert(optlist,
536 CACreateNewOptionNode(id, (info->options + i)->optionLength,
537 (info->options + i)->optionData),
541 return CA_STATUS_INVALID_PARAM;
546 // insert one extra header with the payload format if applicable.
547 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
549 coap_list_t* node = NULL;
550 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
551 switch (info->payloadFormat)
553 case CA_FORMAT_APPLICATION_CBOR:
554 node = CACreateNewOptionNode(
555 COAP_OPTION_CONTENT_FORMAT,
556 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
560 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->payloadFormat);
564 OIC_LOG(ERROR, TAG, "format option not created");
565 return CA_STATUS_INVALID_PARAM;
567 int ret = coap_insert(optlist, node, CAOrderOpts);
571 OIC_LOG(ERROR, TAG, "format option not inserted in header");
572 return CA_STATUS_INVALID_PARAM;
575 if (CA_FORMAT_UNDEFINED != info->acceptFormat)
577 coap_list_t* node = NULL;
578 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
579 switch (info->acceptFormat)
581 case CA_FORMAT_APPLICATION_CBOR:
582 node = CACreateNewOptionNode(
584 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
588 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->acceptFormat);
592 OIC_LOG(ERROR, TAG, "format option not created");
593 return CA_STATUS_INVALID_PARAM;
595 int ret = coap_insert(optlist, node, CAOrderOpts);
599 OIC_LOG(ERROR, TAG, "format option not inserted in header");
600 return CA_STATUS_INVALID_PARAM;
607 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
609 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
611 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
614 OIC_LOG(ERROR, TAG, "Out of memory");
617 memset(option, 0, sizeof(coap_option) + length + 1);
619 COAP_OPTION_KEY(*option) = key;
621 coap_option_def_t* def = coap_opt_def(key);
622 if (NULL != def && coap_is_var_bytes(def))
624 if (length > def->max)
626 // make sure we shrink the value so it fits the coap option definition
627 // by truncating the value, disregard the leading bytes.
628 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
629 def->key, length, def->max);
630 data = &(data[length-def->max]);
633 // Shrink the encoding length to a minimum size for coap
634 // options that support variable length encoding.
635 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
636 COAP_OPTION_DATA(*option),
637 coap_decode_var_bytes((unsigned char *)data, length));
641 COAP_OPTION_LENGTH(*option) = length;
642 memcpy(COAP_OPTION_DATA(*option), data, length);
645 /* we can pass NULL here as delete function since option is released automatically */
646 coap_list_t *node = coap_new_listnode(option, NULL);
650 OIC_LOG(ERROR, TAG, "node is NULL");
658 int CAOrderOpts(void *a, void *b)
662 return a < b ? -1 : 1;
665 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
670 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
673 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
676 coap_opt_t *option = NULL;
678 while ((option = coap_option_next(&opt_iter)))
680 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
681 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
682 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
683 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type
684 && COAP_OPTION_ACCEPT != opt_iter.type
685 && COAP_OPTION_URI_HOST != opt_iter.type && COAP_OPTION_URI_PORT != opt_iter.type
686 && COAP_OPTION_ETAG != opt_iter.type && COAP_OPTION_MAXAGE != opt_iter.type
687 && COAP_OPTION_PROXY_SCHEME != opt_iter.type)
696 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
697 uint32_t *outCode, CAInfo_t *outInfo)
699 VERIFY_NON_NULL(pdu, TAG, "pdu");
700 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
701 VERIFY_NON_NULL(outCode, TAG, "outCode");
702 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
704 coap_transport_type transport;
706 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
708 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu->hdr)[0] >> 4);
713 transport = coap_udp;
716 coap_opt_iterator_t opt_iter;
717 coap_option_iterator_init((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL, transport);
721 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(pdu, transport));
724 // init HeaderOption list
725 uint32_t count = CAGetOptionCount(opt_iter);
726 memset(outInfo, 0, sizeof(*outInfo));
728 outInfo->numOptions = count;
731 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
734 outInfo->type = CA_MSG_NONCONFIRM;
735 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
743 outInfo->type = pdu->hdr->coap_hdr_udp_t.type;
746 outInfo->messageId = pdu->hdr->coap_hdr_udp_t.id;
747 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
748 outInfo->acceptFormat = CA_FORMAT_UNDEFINED;
753 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
754 if (NULL == outInfo->options)
756 OIC_LOG(ERROR, TAG, "Out of memory");
757 return CA_MEMORY_ALLOC_FAILED;
761 coap_opt_t *option = NULL;
762 char optionResult[CA_MAX_URI_LENGTH] = {0};
764 uint32_t optionLength = 0;
765 bool isfirstsetflag = false;
766 bool isQueryBeingProcessed = false;
768 bool isProxyRequest = false;
771 while ((option = coap_option_next(&opt_iter)))
773 char buf[COAP_MAX_PDU_SIZE] = {0};
775 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
776 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
779 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
780 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
782 if (false == isfirstsetflag)
784 isfirstsetflag = true;
785 optionResult[optionLength] = '/';
787 // Make sure there is enough room in the optionResult buffer
788 if ((optionLength + bufLength) < sizeof(optionResult))
790 memcpy(&optionResult[optionLength], buf, bufLength);
791 optionLength += bufLength;
800 if (COAP_OPTION_URI_PATH == opt_iter.type)
802 // Make sure there is enough room in the optionResult buffer
803 if (optionLength < sizeof(optionResult))
805 optionResult[optionLength] = '/';
813 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
815 if (false == isQueryBeingProcessed)
817 // Make sure there is enough room in the optionResult buffer
818 if (optionLength < sizeof(optionResult))
820 optionResult[optionLength] = '?';
822 isQueryBeingProcessed = true;
831 // Make sure there is enough room in the optionResult buffer
832 if (optionLength < sizeof(optionResult))
834 optionResult[optionLength] = ';';
843 // Make sure there is enough room in the optionResult buffer
844 if ((optionLength + bufLength) < sizeof(optionResult))
846 memcpy(&optionResult[optionLength], buf, bufLength);
847 optionLength += bufLength;
855 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
856 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
858 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
860 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
862 if (1 == COAP_OPT_LENGTH(option))
864 outInfo->payloadFormat = CAConvertFormat((uint8_t)buf[0]);
868 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
869 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
870 opt_iter.type, (uint8_t)buf[0]);
873 else if (COAP_OPTION_ACCEPT == opt_iter.type)
875 if (1 == COAP_OPT_LENGTH(option))
877 outInfo->acceptFormat = CAConvertFormat((uint8_t)buf[0]);
881 outInfo->acceptFormat = CA_FORMAT_UNSUPPORTED;
883 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
884 opt_iter.type, (uint8_t)buf[0]);
886 else if (COAP_OPTION_URI_PORT == opt_iter.type ||
887 COAP_OPTION_URI_HOST == opt_iter.type ||
888 COAP_OPTION_ETAG == opt_iter.type ||
889 COAP_OPTION_MAXAGE == opt_iter.type ||
890 COAP_OPTION_PROXY_SCHEME== opt_iter.type)
892 OIC_LOG_V(INFO, TAG, "option[%d] has an unsupported format [%d]",
893 opt_iter.type, (uint8_t)buf[0]);
898 if (COAP_OPTION_PROXY_URI == opt_iter.type)
900 isProxyRequest = true;
905 if (bufLength <= sizeof(outInfo->options[0].optionData))
907 outInfo->options[idx].optionID = opt_iter.type;
908 outInfo->options[idx].optionLength = bufLength;
909 outInfo->options[idx].protocolID = CA_COAP_ID;
910 memcpy(outInfo->options[idx].optionData, buf, bufLength);
918 unsigned char* token = NULL;
919 unsigned int token_length = 0;
920 coap_get_token(pdu->hdr, transport, &token, &token_length);
923 if (token_length > 0)
925 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", token_length);
926 outInfo->token = (char *) OICMalloc(token_length);
927 if (NULL == outInfo->token)
929 OIC_LOG(ERROR, TAG, "Out of memory");
930 OICFree(outInfo->options);
931 return CA_MEMORY_ALLOC_FAILED;
933 memcpy(outInfo->token, token, token_length);
936 outInfo->tokenLength = token_length;
941 if (coap_get_data(pdu, &dataSize, &data))
943 OIC_LOG(DEBUG, TAG, "inside pdu->data");
944 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
945 if (NULL == outInfo->payload)
947 OIC_LOG(ERROR, TAG, "Out of memory");
948 OICFree(outInfo->options);
949 OICFree(outInfo->token);
950 return CA_MEMORY_ALLOC_FAILED;
952 memcpy(outInfo->payload, pdu->data, dataSize);
953 outInfo->payloadSize = dataSize;
956 if (optionResult[0] != '\0')
958 OIC_LOG_V(DEBUG, TAG, "URL length:%zu", strlen(optionResult));
959 outInfo->resourceUri = OICStrdup(optionResult);
960 if (!outInfo->resourceUri)
962 OIC_LOG(ERROR, TAG, "Out of memory");
963 OICFree(outInfo->options);
964 OICFree(outInfo->token);
965 return CA_MEMORY_ALLOC_FAILED;
969 else if(isProxyRequest && g_chproxyUri[0] != '\0')
972 * A request for CoAP-HTTP Proxy will not have any uri element as per CoAP specs
973 * and only COAP_OPTION_PROXY_URI will be present. Use preset proxy uri
976 outInfo->resourceUri = OICStrdup(g_chproxyUri);
977 if (!outInfo->resourceUri)
979 OIC_LOG(ERROR, TAG, "Out of memory");
980 OICFree(outInfo->options);
981 OICFree(outInfo->token);
982 return CA_MEMORY_ALLOC_FAILED;
989 OIC_LOG(ERROR, TAG, "buffer too small");
990 OICFree(outInfo->options);
991 return CA_STATUS_FAILED;
994 CAResult_t CAGetTokenFromPDU(const coap_hdr_t *pdu_hdr, CAInfo_t *outInfo,
995 const CAEndpoint_t *endpoint)
997 VERIFY_NON_NULL(pdu_hdr, TAG, "pdu_hdr");
998 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
999 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
1001 coap_transport_type transport = coap_udp;
1003 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
1005 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu_hdr)[0] >> 4);
1009 unsigned char* token = NULL;
1010 unsigned int token_length = 0;
1011 coap_get_token(pdu_hdr, transport, &token, &token_length);
1014 if (token_length > 0)
1016 OIC_LOG_V(DEBUG, TAG, "token len:%d", token_length);
1017 outInfo->token = (char *) OICMalloc(token_length);
1018 if (NULL == outInfo->token)
1020 OIC_LOG(ERROR, TAG, "Out of memory");
1021 return CA_MEMORY_ALLOC_FAILED;
1023 memcpy(outInfo->token, token, token_length);
1026 outInfo->tokenLength = token_length;
1028 return CA_STATUS_OK;
1031 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
1033 VERIFY_NON_NULL(token, TAG, "token");
1035 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
1037 OIC_LOG(ERROR, TAG, "invalid token length");
1038 return CA_STATUS_INVALID_PARAM;
1041 // memory allocation
1042 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
1045 OIC_LOG(ERROR, TAG, "Out of memory");
1046 return CA_MEMORY_ALLOC_FAILED;
1049 OCFillRandomMem((uint8_t *)temp, tokenLength);
1054 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
1055 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
1057 return CA_STATUS_OK;
1060 void CADestroyTokenInternal(CAToken_t token)
1065 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
1066 uint8_t *option, uint32_t buflen)
1070 OIC_LOG(ERROR, TAG, "buflen 0");
1076 OIC_LOG(ERROR, TAG, "option buffer too small");
1080 coap_option_def_t* def = coap_opt_def(key);
1081 if (NULL != def && coap_is_var_bytes(def) && 0 == len)
1083 // A 0 length option is permitted in CoAP but the
1084 // rest or the stack is unaware of variable byte encoding
1085 // should remain that way so a 0 byte of length 1 is inserted.
1091 memcpy(option, data, len);
1098 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
1100 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_MSG_NONCONFIRM);
1102 // pdu minimum size is 4 byte.
1103 if (size < CA_PDU_MIN_SIZE)
1105 OIC_LOG(ERROR, TAG, "min size");
1106 return CA_MSG_NONCONFIRM;
1109 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1111 return (CAMessageType_t) hdr->coap_hdr_udp_t.type;
1114 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
1116 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", 0);
1118 // pdu minimum size is 4 byte.
1119 if (size < CA_PDU_MIN_SIZE)
1121 OIC_LOG(ERROR, TAG, "min size");
1125 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1127 return hdr->coap_hdr_udp_t.id;
1130 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
1132 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_NOT_FOUND);
1134 // pdu minimum size is 4 byte.
1135 if (size < CA_PDU_MIN_SIZE)
1137 OIC_LOG(ERROR, TAG, "min size");
1138 return CA_NOT_FOUND;
1141 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1143 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->coap_hdr_udp_t.code);
1146 CAPayloadFormat_t CAConvertFormat(uint8_t format)
1150 case COAP_MEDIATYPE_TEXT_PLAIN:
1151 return CA_FORMAT_TEXT_PLAIN;
1152 case COAP_MEDIATYPE_APPLICATION_LINK_FORMAT:
1153 return CA_FORMAT_APPLICATION_LINK_FORMAT;
1154 case COAP_MEDIATYPE_APPLICATION_XML:
1155 return CA_FORMAT_APPLICATION_XML;
1156 case COAP_MEDIATYPE_APPLICATION_OCTET_STREAM:
1157 return CA_FORMAT_APPLICATION_OCTET_STREAM;
1158 case COAP_MEDIATYPE_APPLICATION_RDF_XML:
1159 return CA_FORMAT_APPLICATION_RDF_XML;
1160 case COAP_MEDIATYPE_APPLICATION_EXI:
1161 return CA_FORMAT_APPLICATION_EXI;
1162 case COAP_MEDIATYPE_APPLICATION_JSON:
1163 return CA_FORMAT_APPLICATION_JSON;
1164 case COAP_MEDIATYPE_APPLICATION_CBOR:
1165 return CA_FORMAT_APPLICATION_CBOR;
1167 return CA_FORMAT_UNSUPPORTED;
1172 bool CAIsSupportedBlockwiseTransfer(CATransportAdapter_t adapter)
1174 if (CA_ADAPTER_IP & adapter || CA_ADAPTER_NFC & adapter
1175 || CA_DEFAULT_ADAPTER == adapter)
1184 bool CAIsSupportedCoAPOverTCP(CATransportAdapter_t adapter)
1186 if (CA_ADAPTER_GATT_BTLE & adapter || CA_ADAPTER_RFCOMM_BTEDR & adapter
1187 || CA_ADAPTER_TCP & adapter || CA_DEFAULT_ADAPTER == adapter)