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_t *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 OIC_LOG_V(DEBUG, TAG, "generate pdu for [%d]adapter, [%d]flags",
110 endpoint->adapter, endpoint->flags);
112 coap_pdu_t *pdu = NULL;
114 // RESET have to use only 4byte (empty message)
115 // and ACKNOWLEDGE can use empty message when code is empty.
116 if (CA_MSG_RESET == info->type || (CA_EMPTY == code && CA_MSG_ACKNOWLEDGE == info->type))
118 if (CA_EMPTY != code)
120 OIC_LOG(ERROR, TAG, "reset is not empty message");
124 if (info->payloadSize > 0 || info->payload || info->token || info->tokenLength > 0)
126 OIC_LOG(ERROR, TAG, "Empty message has unnecessary data after messageID");
130 OIC_LOG(DEBUG, TAG, "code is empty");
131 if (!(pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, NULL, transport)))
133 OIC_LOG(ERROR, TAG, "pdu NULL");
139 if (info->resourceUri)
141 OIC_LOG_V(DEBUG, TAG, "uri : %s", info->resourceUri);
143 uint32_t length = strlen(info->resourceUri);
144 if (CA_MAX_URI_LENGTH < length)
146 OIC_LOG(ERROR, TAG, "URI len err");
150 uint32_t uriLength = length + sizeof(COAP_URI_HEADER);
151 char *coapUri = (char *) OICCalloc(1, uriLength);
154 OIC_LOG(ERROR, TAG, "out of memory");
157 OICStrcat(coapUri, uriLength, COAP_URI_HEADER);
158 OICStrcat(coapUri, uriLength, info->resourceUri);
160 // parsing options in URI
161 CAResult_t res = CAParseURI(coapUri, optlist);
162 if (CA_STATUS_OK != res)
170 // parsing options in HeadOption
171 CAResult_t ret = CAParseHeadOption(code, info, optlist);
172 if (CA_STATUS_OK != ret)
177 pdu = CAGeneratePDUImpl((code_t) code, info, endpoint, *optlist, transport);
180 OIC_LOG(ERROR, TAG, "pdu NULL");
185 // pdu print method : coap_show_pdu(pdu);
189 coap_pdu_t *CAParsePDU(const char *data, uint32_t length, uint32_t *outCode,
190 const CAEndpoint_t *endpoint)
192 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
193 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
195 coap_transport_t transport = COAP_UDP;
197 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
199 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)data)[0] >> 4);
203 coap_pdu_t *outpdu = coap_new_pdu2(transport, length);
206 OIC_LOG(ERROR, TAG, "outpdu is null");
207 OIC_LOG_V(ERROR, TAG, "data length: %u", length);
211 OIC_LOG_V(DEBUG, TAG, "pdu parse-transport type : %d", transport);
213 int ret = coap_pdu_parse2((unsigned char *) data, length, outpdu, transport);
214 OIC_LOG_V(DEBUG, TAG, "pdu parse ret: %d", ret);
217 OIC_LOG(ERROR, TAG, "pdu parse failed");
222 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
224 OIC_LOG(INFO, TAG, "there is no version info in coap header");
229 if (outpdu->transport_hdr->udp.version != COAP_DEFAULT_VERSION)
231 OIC_LOG_V(ERROR, TAG, "coap version is not available : %d",
232 outpdu->transport_hdr->udp.version);
235 if (outpdu->transport_hdr->udp.token_length > CA_MAX_TOKEN_LEN)
237 OIC_LOG_V(ERROR, TAG, "token length has been exceed : %d",
238 outpdu->transport_hdr->udp.token_length);
245 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(outpdu, transport));
251 OIC_LOG(DEBUG, TAG, "data :");
252 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t*) data, length);
253 coap_delete_pdu(outpdu);
257 coap_pdu_t *CAGeneratePDUImpl(code_t code, const CAInfo_t *info,
258 const CAEndpoint_t *endpoint, coap_list_t *options,
259 coap_transport_t *transport)
261 VERIFY_NON_NULL_RET(info, TAG, "info", NULL);
262 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint", NULL);
263 VERIFY_NON_NULL_RET(transport, TAG, "transport", NULL);
265 unsigned int length = COAP_MAX_PDU_SIZE;
267 unsigned int msgLength = 0;
268 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
272 unsigned short prevOptNumber = 0;
273 for (coap_list_t *opt = options; opt; opt = opt->next)
275 unsigned short curOptNumber = COAP_OPTION_KEY(*(coap_option *) opt->data);
276 if (prevOptNumber > curOptNumber)
278 OIC_LOG(ERROR, TAG, "option list is wrong");
282 size_t optValueLen = COAP_OPTION_LENGTH(*(coap_option *) opt->data);
283 size_t optLength = coap_get_opt_header_length(curOptNumber - prevOptNumber, optValueLen);
286 OIC_LOG(ERROR, TAG, "Reserved for the Payload marker for the option");
289 msgLength += optLength;
290 prevOptNumber = curOptNumber;
291 OIC_LOG_V(DEBUG, TAG, "curOptNumber[%d], prevOptNumber[%d], optValueLen[%zu], "
292 "optLength[%zu], msgLength[%d]",
293 curOptNumber, prevOptNumber, optValueLen, optLength, msgLength);
297 if (info->payloadSize > 0)
299 msgLength = msgLength + info->payloadSize + PAYLOAD_MARKER;
301 *transport = coap_get_tcp_header_type_from_size(msgLength);
302 length = msgLength + coap_get_tcp_header_length_for_transport(*transport)
308 *transport = COAP_UDP;
311 coap_pdu_t *pdu = coap_new_pdu2(*transport, length);
315 OIC_LOG(ERROR, TAG, "malloc failed");
319 OIC_LOG_V(DEBUG, TAG, "transport type: %d, payload size: %zu",
320 *transport, info->payloadSize);
323 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
325 coap_add_length(pdu, *transport, msgLength);
330 OIC_LOG_V(DEBUG, TAG, "msgID is %d", info->messageId);
331 uint16_t message_id = 0;
332 if (0 == info->messageId)
334 /* initialize message id */
335 prng((uint8_t * ) &message_id, sizeof(message_id));
337 OIC_LOG_V(DEBUG, TAG, "gen msg id=%d", message_id);
341 /* use saved message id */
342 message_id = info->messageId;
344 pdu->transport_hdr->udp.id = message_id;
345 OIC_LOG_V(DEBUG, TAG, "messageId in pdu is %d, %d", message_id, pdu->transport_hdr->udp.id);
347 pdu->transport_hdr->udp.type = info->type;
350 coap_add_code(pdu, *transport, code);
352 if (info->token && CA_EMPTY != code)
354 uint32_t tokenLength = info->tokenLength;
355 OIC_LOG_V(DEBUG, TAG, "token info token length: %d, token :", tokenLength);
356 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)info->token, tokenLength);
358 int32_t ret = coap_add_token2(pdu, tokenLength, (unsigned char *)info->token, *transport);
361 OIC_LOG(ERROR, TAG, "can't add token");
366 if (CA_ADAPTER_GATT_BTLE != endpoint->adapter
368 && !CAIsSupportedCoAPOverTCP(endpoint->adapter)
372 // option list will be added in blockwise-transfer
379 for (coap_list_t *opt = options; opt; opt = opt->next)
381 OIC_LOG_V(DEBUG, TAG, "[%s] opt will be added.",
382 COAP_OPTION_DATA(*(coap_option *) opt->data));
384 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length", pdu->length);
385 coap_add_option2(pdu, COAP_OPTION_KEY(*(coap_option *) opt->data),
386 COAP_OPTION_LENGTH(*(coap_option *) opt->data),
387 COAP_OPTION_DATA(*(coap_option *) opt->data), *transport);
391 OIC_LOG_V(DEBUG, TAG, "[%d] pdu length after option", pdu->length);
393 if (NULL != info->payload && 0 < info->payloadSize)
395 OIC_LOG(DEBUG, TAG, "payload is added");
396 coap_add_data(pdu, info->payloadSize, (const unsigned char *) info->payload);
402 CAResult_t CAParseURI(const char *uriInfo, coap_list_t **optlist)
404 VERIFY_NON_NULL(uriInfo, TAG, "uriInfo");
405 VERIFY_NON_NULL(optlist, TAG, "optlist");
407 /* split arg into Uri-* options */
409 coap_split_uri((unsigned char *) uriInfo, strlen(uriInfo), &uri);
411 if (uri.port != COAP_DEFAULT_PORT)
413 unsigned char portbuf[CA_ENCODE_BUFFER_SIZE] = { 0 };
414 int ret = coap_insert(optlist,
415 CACreateNewOptionNode(COAP_OPTION_URI_PORT,
416 coap_encode_var_bytes(portbuf, uri.port),
421 return CA_STATUS_INVALID_PARAM;
425 if (uri.path.s && uri.path.length)
427 CAResult_t ret = CAParseUriPartial(uri.path.s, uri.path.length,
428 COAP_OPTION_URI_PATH, optlist);
429 if (CA_STATUS_OK != ret)
431 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri path)");
436 if (uri.query.s && uri.query.length)
438 CAResult_t ret = CAParseUriPartial(uri.query.s, uri.query.length, COAP_OPTION_URI_QUERY,
440 if (CA_STATUS_OK != ret)
442 OIC_LOG(ERROR, TAG, "CAParseUriPartial failed(uri query)");
450 CAResult_t CAParseUriPartial(const unsigned char *str, size_t length, int target,
451 coap_list_t **optlist)
453 VERIFY_NON_NULL(optlist, TAG, "optlist");
455 if ((target != COAP_OPTION_URI_PATH) && (target != COAP_OPTION_URI_QUERY))
457 // should never occur. Log just in case.
458 OIC_LOG(DEBUG, TAG, "Unexpected URI component.");
459 return CA_NOT_SUPPORTED;
461 else if (str && length)
463 unsigned char uriBuffer[CA_MAX_URI_LENGTH] = { 0 };
464 unsigned char *pBuf = uriBuffer;
465 size_t unusedBufferSize = sizeof(uriBuffer);
466 int res = (target == COAP_OPTION_URI_PATH) ? coap_split_path(str, length, pBuf, &unusedBufferSize) :
467 coap_split_query(str, length, pBuf, &unusedBufferSize);
471 assert(unusedBufferSize < sizeof(uriBuffer));
472 size_t usedBufferSize = sizeof(uriBuffer) - unusedBufferSize;
476 int ret = coap_insert(optlist,
477 CACreateNewOptionNode(target, COAP_OPT_LENGTH(pBuf),
478 (char *)COAP_OPT_VALUE(pBuf)),
482 return CA_STATUS_INVALID_PARAM;
485 size_t optSize = COAP_OPT_SIZE(pBuf);
486 if (prevIdx + optSize > usedBufferSize)
489 return CA_STATUS_INVALID_PARAM;
497 OIC_LOG_V(ERROR, TAG, "Problem parsing URI : %d for %d", res, target);
498 return CA_STATUS_FAILED;
503 OIC_LOG(ERROR, TAG, "str or length is not available");
504 return CA_STATUS_FAILED;
510 CAResult_t CAParseHeadOption(uint32_t code, const CAInfo_t *info, coap_list_t **optlist)
513 VERIFY_NON_NULL_RET(info, TAG, "info", CA_STATUS_INVALID_PARAM);
515 OIC_LOG_V(DEBUG, TAG, "parse Head Opt: %d", info->numOptions);
519 OIC_LOG(ERROR, TAG, "optlist is null");
520 return CA_STATUS_INVALID_PARAM;
523 for (uint32_t i = 0; i < info->numOptions; i++)
525 if(!(info->options + i))
527 OIC_LOG(ERROR, TAG, "options is not available");
528 return CA_STATUS_FAILED;
531 uint32_t id = (info->options + i)->optionID;
532 if (COAP_OPTION_URI_PATH == id || COAP_OPTION_URI_QUERY == id)
534 OIC_LOG_V(DEBUG, TAG, "not Header Opt: %d", id);
538 OIC_LOG_V(DEBUG, TAG, "Head opt ID[%d], length[%d]", id, (info->options + i)->optionLength);
539 int ret = coap_insert(optlist,
540 CACreateNewOptionNode(id, (info->options + i)->optionLength,
541 (info->options + i)->optionData),
545 return CA_STATUS_INVALID_PARAM;
550 // insert one extra header with the payload format if applicable.
551 if (CA_FORMAT_UNDEFINED != info->payloadFormat)
553 coap_list_t* node = NULL;
554 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
555 switch (info->payloadFormat)
557 case CA_FORMAT_APPLICATION_CBOR:
558 node = CACreateNewOptionNode(
559 COAP_OPTION_CONTENT_FORMAT,
560 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
564 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->payloadFormat);
568 OIC_LOG(ERROR, TAG, "format option not created");
569 return CA_STATUS_INVALID_PARAM;
571 int ret = coap_insert(optlist, node, CAOrderOpts);
575 OIC_LOG(ERROR, TAG, "format option not inserted in header");
576 return CA_STATUS_INVALID_PARAM;
579 if (CA_FORMAT_UNDEFINED != info->acceptFormat)
581 coap_list_t* node = NULL;
582 uint8_t buf[CA_ENCODE_BUFFER_SIZE] = {0};
583 switch (info->acceptFormat)
585 case CA_FORMAT_APPLICATION_CBOR:
586 node = CACreateNewOptionNode(
588 coap_encode_var_bytes(buf, (unsigned short)COAP_MEDIATYPE_APPLICATION_CBOR),
592 OIC_LOG_V(ERROR, TAG, "format option:[%d] not supported", info->acceptFormat);
596 OIC_LOG(ERROR, TAG, "format option not created");
597 return CA_STATUS_INVALID_PARAM;
599 int ret = coap_insert(optlist, node, CAOrderOpts);
603 OIC_LOG(ERROR, TAG, "format option not inserted in header");
604 return CA_STATUS_INVALID_PARAM;
611 coap_list_t *CACreateNewOptionNode(uint16_t key, uint32_t length, const char *data)
613 VERIFY_NON_NULL_RET(data, TAG, "data", NULL);
615 coap_option *option = coap_malloc(sizeof(coap_option) + length + 1);
618 OIC_LOG(ERROR, TAG, "Out of memory");
621 memset(option, 0, sizeof(coap_option) + length + 1);
623 COAP_OPTION_KEY(*option) = key;
625 coap_option_def_t* def = coap_opt_def(key);
626 if (NULL != def && coap_is_var_bytes(def))
628 if (length > def->max)
630 // make sure we shrink the value so it fits the coap option definition
631 // by truncating the value, disregard the leading bytes.
632 OIC_LOG_V(DEBUG, TAG, "Option [%d] data size [%d] shrunk to [%d]",
633 def->key, length, def->max);
634 data = &(data[length-def->max]);
637 // Shrink the encoding length to a minimum size for coap
638 // options that support variable length encoding.
639 COAP_OPTION_LENGTH(*option) = coap_encode_var_bytes(
640 COAP_OPTION_DATA(*option),
641 coap_decode_var_bytes((unsigned char *)data, length));
645 COAP_OPTION_LENGTH(*option) = length;
646 memcpy(COAP_OPTION_DATA(*option), data, length);
649 /* we can pass NULL here as delete function since option is released automatically */
650 coap_list_t *node = coap_new_listnode(option, NULL);
654 OIC_LOG(ERROR, TAG, "node is NULL");
662 int CAOrderOpts(void *a, void *b)
666 return a < b ? -1 : 1;
669 if (COAP_OPTION_KEY(*(coap_option *) a) < COAP_OPTION_KEY(*(coap_option * ) b))
674 return COAP_OPTION_KEY(*(coap_option *) a) == COAP_OPTION_KEY(*(coap_option * ) b);
677 uint32_t CAGetOptionCount(coap_opt_iterator_t opt_iter)
680 coap_opt_t *option = NULL;
682 while ((option = coap_option_next(&opt_iter)))
684 if (COAP_OPTION_URI_PATH != opt_iter.type && COAP_OPTION_URI_QUERY != opt_iter.type
685 && COAP_OPTION_BLOCK1 != opt_iter.type && COAP_OPTION_BLOCK2 != opt_iter.type
686 && COAP_OPTION_SIZE1 != opt_iter.type && COAP_OPTION_SIZE2 != opt_iter.type
687 && COAP_OPTION_CONTENT_FORMAT != opt_iter.type
688 && COAP_OPTION_ACCEPT != opt_iter.type
689 && COAP_OPTION_URI_HOST != opt_iter.type && COAP_OPTION_URI_PORT != opt_iter.type
690 && COAP_OPTION_ETAG != opt_iter.type && COAP_OPTION_MAXAGE != opt_iter.type
691 && COAP_OPTION_PROXY_SCHEME != opt_iter.type)
700 CAResult_t CAGetInfoFromPDU(const coap_pdu_t *pdu, const CAEndpoint_t *endpoint,
701 uint32_t *outCode, CAInfo_t *outInfo)
703 VERIFY_NON_NULL(pdu, TAG, "pdu");
704 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
705 VERIFY_NON_NULL(outCode, TAG, "outCode");
706 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
708 coap_transport_t transport;
710 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
712 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu->transport_hdr)[0] >> 4);
717 transport = COAP_UDP;
720 coap_opt_iterator_t opt_iter;
721 coap_option_iterator_init2((coap_pdu_t *) pdu, &opt_iter, COAP_OPT_ALL, transport);
725 (*outCode) = (uint32_t) CA_RESPONSE_CODE(coap_get_code(pdu, transport));
728 // init HeaderOption list
729 uint32_t count = CAGetOptionCount(opt_iter);
730 memset(outInfo, 0, sizeof(*outInfo));
732 outInfo->numOptions = count;
735 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
738 outInfo->type = CA_MSG_NONCONFIRM;
739 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
747 outInfo->type = pdu->transport_hdr->udp.type;
750 outInfo->messageId = pdu->transport_hdr->udp.id;
751 outInfo->payloadFormat = CA_FORMAT_UNDEFINED;
752 outInfo->acceptFormat = CA_FORMAT_UNDEFINED;
757 outInfo->options = (CAHeaderOption_t *) OICCalloc(count, sizeof(CAHeaderOption_t));
758 if (NULL == outInfo->options)
760 OIC_LOG(ERROR, TAG, "Out of memory");
761 return CA_MEMORY_ALLOC_FAILED;
765 coap_opt_t *option = NULL;
766 char optionResult[CA_MAX_URI_LENGTH] = {0};
768 uint32_t optionLength = 0;
769 bool isfirstsetflag = false;
770 bool isQueryBeingProcessed = false;
772 bool isProxyRequest = false;
775 while ((option = coap_option_next(&opt_iter)))
777 char buf[COAP_MAX_PDU_SIZE] = {0};
779 CAGetOptionData(opt_iter.type, (uint8_t *)(COAP_OPT_VALUE(option)),
780 COAP_OPT_LENGTH(option), (uint8_t *)buf, sizeof(buf));
783 OIC_LOG_V(DEBUG, TAG, "COAP URI element : %s", buf);
784 if (COAP_OPTION_URI_PATH == opt_iter.type || COAP_OPTION_URI_QUERY == opt_iter.type)
786 if (false == isfirstsetflag)
788 isfirstsetflag = true;
789 optionResult[optionLength] = '/';
791 // Make sure there is enough room in the optionResult buffer
792 if ((optionLength + bufLength) < sizeof(optionResult))
794 memcpy(&optionResult[optionLength], buf, bufLength);
795 optionLength += bufLength;
804 if (COAP_OPTION_URI_PATH == opt_iter.type)
806 // Make sure there is enough room in the optionResult buffer
807 if (optionLength < sizeof(optionResult))
809 optionResult[optionLength] = '/';
817 else if (COAP_OPTION_URI_QUERY == opt_iter.type)
819 if (false == isQueryBeingProcessed)
821 // Make sure there is enough room in the optionResult buffer
822 if (optionLength < sizeof(optionResult))
824 optionResult[optionLength] = '?';
826 isQueryBeingProcessed = true;
835 // Make sure there is enough room in the optionResult buffer
836 if (optionLength < sizeof(optionResult))
838 optionResult[optionLength] = ';';
847 // Make sure there is enough room in the optionResult buffer
848 if ((optionLength + bufLength) < sizeof(optionResult))
850 memcpy(&optionResult[optionLength], buf, bufLength);
851 optionLength += bufLength;
859 else if (COAP_OPTION_BLOCK1 == opt_iter.type || COAP_OPTION_BLOCK2 == opt_iter.type
860 || COAP_OPTION_SIZE1 == opt_iter.type || COAP_OPTION_SIZE2 == opt_iter.type)
862 OIC_LOG_V(DEBUG, TAG, "option[%d] will be filtering", opt_iter.type);
864 else if (COAP_OPTION_CONTENT_FORMAT == opt_iter.type)
866 if (1 == COAP_OPT_LENGTH(option))
868 outInfo->payloadFormat = CAConvertFormat((uint8_t)buf[0]);
872 outInfo->payloadFormat = CA_FORMAT_UNSUPPORTED;
873 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
874 opt_iter.type, (uint8_t)buf[0]);
877 else if (COAP_OPTION_ACCEPT == opt_iter.type)
879 if (1 == COAP_OPT_LENGTH(option))
881 outInfo->acceptFormat = CAConvertFormat((uint8_t)buf[0]);
885 outInfo->acceptFormat = CA_FORMAT_UNSUPPORTED;
887 OIC_LOG_V(DEBUG, TAG, "option[%d] has an unsupported format [%d]",
888 opt_iter.type, (uint8_t)buf[0]);
890 else if (COAP_OPTION_URI_PORT == opt_iter.type ||
891 COAP_OPTION_URI_HOST == opt_iter.type ||
892 COAP_OPTION_ETAG == opt_iter.type ||
893 COAP_OPTION_MAXAGE == opt_iter.type ||
894 COAP_OPTION_PROXY_SCHEME== opt_iter.type)
896 OIC_LOG_V(INFO, TAG, "option[%d] has an unsupported format [%d]",
897 opt_iter.type, (uint8_t)buf[0]);
902 if (COAP_OPTION_PROXY_URI == opt_iter.type)
904 isProxyRequest = true;
909 if (bufLength <= sizeof(outInfo->options[0].optionData))
911 outInfo->options[idx].optionID = opt_iter.type;
912 outInfo->options[idx].optionLength = bufLength;
913 outInfo->options[idx].protocolID = CA_COAP_ID;
914 memcpy(outInfo->options[idx].optionData, buf, bufLength);
922 unsigned char* token = NULL;
923 unsigned int token_length = 0;
924 coap_get_token2(pdu->transport_hdr, transport, &token, &token_length);
927 if (token_length > 0)
929 OIC_LOG_V(DEBUG, TAG, "inside token length : %d", token_length);
930 outInfo->token = (char *) OICMalloc(token_length);
931 if (NULL == outInfo->token)
933 OIC_LOG(ERROR, TAG, "Out of memory");
934 OICFree(outInfo->options);
935 return CA_MEMORY_ALLOC_FAILED;
937 memcpy(outInfo->token, token, token_length);
940 outInfo->tokenLength = token_length;
945 if (coap_get_data(pdu, &dataSize, &data))
947 OIC_LOG(DEBUG, TAG, "inside pdu->data");
948 outInfo->payload = (uint8_t *) OICMalloc(dataSize);
949 if (NULL == outInfo->payload)
951 OIC_LOG(ERROR, TAG, "Out of memory");
952 OICFree(outInfo->options);
953 OICFree(outInfo->token);
954 return CA_MEMORY_ALLOC_FAILED;
956 memcpy(outInfo->payload, pdu->data, dataSize);
957 outInfo->payloadSize = dataSize;
960 if (optionResult[0] != '\0')
962 OIC_LOG_V(DEBUG, TAG, "URL length:%zu", strlen(optionResult));
963 outInfo->resourceUri = OICStrdup(optionResult);
964 if (!outInfo->resourceUri)
966 OIC_LOG(ERROR, TAG, "Out of memory");
967 OICFree(outInfo->options);
968 OICFree(outInfo->token);
969 return CA_MEMORY_ALLOC_FAILED;
973 else if(isProxyRequest && g_chproxyUri[0] != '\0')
976 * A request for CoAP-HTTP Proxy will not have any uri element as per CoAP specs
977 * and only COAP_OPTION_PROXY_URI will be present. Use preset proxy uri
980 outInfo->resourceUri = OICStrdup(g_chproxyUri);
981 if (!outInfo->resourceUri)
983 OIC_LOG(ERROR, TAG, "Out of memory");
984 OICFree(outInfo->options);
985 OICFree(outInfo->token);
986 return CA_MEMORY_ALLOC_FAILED;
993 OIC_LOG(ERROR, TAG, "buffer too small");
994 OICFree(outInfo->options);
995 return CA_STATUS_FAILED;
998 CAResult_t CAGetTokenFromPDU(const coap_hdr_transport_t *pdu_hdr,
1000 const CAEndpoint_t *endpoint)
1002 VERIFY_NON_NULL(pdu_hdr, TAG, "pdu_hdr");
1003 VERIFY_NON_NULL(outInfo, TAG, "outInfo");
1004 VERIFY_NON_NULL(endpoint, TAG, "endpoint");
1006 coap_transport_t transport = COAP_UDP;
1008 if (CAIsSupportedCoAPOverTCP(endpoint->adapter))
1010 transport = coap_get_tcp_header_type_from_initbyte(((unsigned char *)pdu_hdr)[0] >> 4);
1014 unsigned char* token = NULL;
1015 unsigned int token_length = 0;
1016 coap_get_token2(pdu_hdr, transport, &token, &token_length);
1019 if (token && token_length > 0)
1021 OIC_LOG_V(DEBUG, TAG, "token len:%d", token_length);
1022 outInfo->token = (char *) OICMalloc(token_length);
1023 if (NULL == outInfo->token)
1025 OIC_LOG(ERROR, TAG, "Out of memory");
1026 return CA_MEMORY_ALLOC_FAILED;
1028 memcpy(outInfo->token, token, token_length);
1031 outInfo->tokenLength = token_length;
1033 return CA_STATUS_OK;
1036 CAResult_t CAGenerateTokenInternal(CAToken_t *token, uint8_t tokenLength)
1038 VERIFY_NON_NULL(token, TAG, "token");
1040 if ((tokenLength > CA_MAX_TOKEN_LEN) || (0 == tokenLength))
1042 OIC_LOG(ERROR, TAG, "invalid token length");
1043 return CA_STATUS_INVALID_PARAM;
1046 // memory allocation
1047 char *temp = (char *) OICCalloc(tokenLength, sizeof(char));
1050 OIC_LOG(ERROR, TAG, "Out of memory");
1051 return CA_MEMORY_ALLOC_FAILED;
1054 OCFillRandomMem((uint8_t *)temp, tokenLength);
1059 OIC_LOG_V(DEBUG, TAG, "token len:%d, token:", tokenLength);
1060 OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *)(*token), tokenLength);
1062 return CA_STATUS_OK;
1065 void CADestroyTokenInternal(CAToken_t token)
1070 uint32_t CAGetOptionData(uint16_t key, const uint8_t *data, uint32_t len,
1071 uint8_t *option, uint32_t buflen)
1075 OIC_LOG(ERROR, TAG, "buflen 0");
1081 OIC_LOG(ERROR, TAG, "option buffer too small");
1085 coap_option_def_t* def = coap_opt_def(key);
1086 if (NULL != def && coap_is_var_bytes(def) && 0 == len)
1088 // A 0 length option is permitted in CoAP but the
1089 // rest or the stack is unaware of variable byte encoding
1090 // should remain that way so a 0 byte of length 1 is inserted.
1096 memcpy(option, data, len);
1103 CAMessageType_t CAGetMessageTypeFromPduBinaryData(const void *pdu, uint32_t size)
1105 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_MSG_NONCONFIRM);
1107 // pdu minimum size is 4 byte.
1108 if (size < CA_PDU_MIN_SIZE)
1110 OIC_LOG(ERROR, TAG, "min size");
1111 return CA_MSG_NONCONFIRM;
1114 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1116 return (CAMessageType_t) hdr->type;
1119 uint16_t CAGetMessageIdFromPduBinaryData(const void *pdu, uint32_t size)
1121 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", 0);
1123 // pdu minimum size is 4 byte.
1124 if (size < CA_PDU_MIN_SIZE)
1126 OIC_LOG(ERROR, TAG, "min size");
1130 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1135 CAResponseResult_t CAGetCodeFromPduBinaryData(const void *pdu, uint32_t size)
1137 VERIFY_NON_NULL_RET(pdu, TAG, "pdu", CA_NOT_FOUND);
1139 // pdu minimum size is 4 byte.
1140 if (size < CA_PDU_MIN_SIZE)
1142 OIC_LOG(ERROR, TAG, "min size");
1143 return CA_NOT_FOUND;
1146 coap_hdr_t *hdr = (coap_hdr_t *) pdu;
1148 return (CAResponseResult_t) CA_RESPONSE_CODE(hdr->code);
1151 CAPayloadFormat_t CAConvertFormat(uint8_t format)
1155 case COAP_MEDIATYPE_TEXT_PLAIN:
1156 return CA_FORMAT_TEXT_PLAIN;
1157 case COAP_MEDIATYPE_APPLICATION_LINK_FORMAT:
1158 return CA_FORMAT_APPLICATION_LINK_FORMAT;
1159 case COAP_MEDIATYPE_APPLICATION_XML:
1160 return CA_FORMAT_APPLICATION_XML;
1161 case COAP_MEDIATYPE_APPLICATION_OCTET_STREAM:
1162 return CA_FORMAT_APPLICATION_OCTET_STREAM;
1163 case COAP_MEDIATYPE_APPLICATION_RDF_XML:
1164 return CA_FORMAT_APPLICATION_RDF_XML;
1165 case COAP_MEDIATYPE_APPLICATION_EXI:
1166 return CA_FORMAT_APPLICATION_EXI;
1167 case COAP_MEDIATYPE_APPLICATION_JSON:
1168 return CA_FORMAT_APPLICATION_JSON;
1169 case COAP_MEDIATYPE_APPLICATION_CBOR:
1170 return CA_FORMAT_APPLICATION_CBOR;
1172 return CA_FORMAT_UNSUPPORTED;
1177 bool CAIsSupportedBlockwiseTransfer(CATransportAdapter_t adapter)
1179 if (CA_ADAPTER_IP & adapter || CA_ADAPTER_NFC & adapter
1180 || CA_DEFAULT_ADAPTER == adapter)
1184 OIC_LOG_V(DEBUG, TAG, "adapter value of BWT is %d", adapter);
1190 bool CAIsSupportedCoAPOverTCP(CATransportAdapter_t adapter)
1192 if (CA_ADAPTER_GATT_BTLE & adapter || CA_ADAPTER_RFCOMM_BTEDR & adapter
1193 || CA_ADAPTER_TCP & adapter || CA_DEFAULT_ADAPTER == adapter)
1197 OIC_LOG_V(DEBUG, TAG, "adapter value of CoAP/TCP is %d", adapter);