1 /* *****************************************************************
3 * Copyright 2016 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 * *****************************************************************/
20 #ifndef _POSIX_C_SOURCE
21 #define _POSIX_C_SOURCE 200112L
23 #include "iotivity_config.h"
30 #ifdef HAVE_SYS_TIME_H
38 #include "oic_malloc.h"
39 #include "oic_string.h"
43 #include "ocpayload.h"
44 #include "payload_logging.h"
45 #include "cainterface.h"
47 #include "directpairing.h"
48 #include "srmresourcestrings.h" //@note: SRM's internal header
49 #include "doxmresource.h" //@note: SRM's internal header
50 #include "pconfresource.h" //@note: SRM's internal header
51 #include "dpairingresource.h" //@note: SRM's internal header
52 #include "credresource.h"
55 #include "pmutility.h"
57 #include "srmutility.h"
64 #define TAG ("OIC_DP")
65 static const uint16_t CBOR_SIZE = 1024;
68 * Structure to carry direct-pairing API data to callback.
70 typedef struct DPairData
72 OCDirectPairingDev_t *peer; /**< Pointer to pairing target info.**/
73 char pin[DP_PIN_LENGTH]; /**< PIN **/
74 OCDirectPairingResultCB resultCallback; /**< Pointer to result callback.**/
75 void *userCtx; /** < user context to pass in callback **/
78 static OCDirectPairingDev_t *g_dp_paired = NULL;
79 static OCDirectPairingDev_t *g_dp_discover = NULL;
80 static DPairData_t *g_dp_proceed_ctx = NULL;
84 * Function to search node in linked list that matches given IP and port.
86 * @param[in] pList List of OCProvisionDev_t.
87 * @param[in] addr address of target device.
88 * @param[in] port port of remote server.
90 * @return pointer of OCProvisionDev_t if exist, otherwise NULL
92 OCDirectPairingDev_t* getDev(OCDirectPairingDev_t **ppList, const char* addr, const uint16_t port)
96 OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
100 OCDirectPairingDev_t *ptr = NULL;
101 LL_FOREACH(*ppList, ptr)
103 if( strcmp(ptr->endpoint.addr, addr) == 0 && port == ptr->endpoint.port)
115 * Add device information to list.
117 * @param[in] pList List of OCProvisionDev_t.
118 * @param[in] addr address of target device.
119 * @param[in] port port of remote server.
120 * @param[in] adapter adapter type of endpoint.
121 * @param[in] doxm pointer to doxm instance.
122 * @param[in] connType connectivity type of endpoint
124 * @return OC_STACK_OK for success and errorcode otherwise.
126 OCStackResult addDev(OCDirectPairingDev_t **ppList, OCDevAddr *endpoint,
127 OCConnectivityType conn, OicSecPconf_t *pconf)
129 if(NULL == endpoint || NULL == pconf)
131 OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
132 return OC_STACK_INVALID_PARAM;
135 OCDirectPairingDev_t *ptr = getDev(ppList, endpoint->addr, endpoint->port);
138 ptr = (OCDirectPairingDev_t *)OICCalloc(1, sizeof (OCDirectPairingDev_t));
141 OIC_LOG(ERROR, TAG, "Error while allocating memory for linkedlist node !!");
142 return OC_STACK_NO_MEMORY;
145 memcpy(&ptr->endpoint, endpoint, sizeof(OCDevAddr));
146 ptr->connType = conn;
147 ptr->securePort = DEFAULT_SECURE_PORT;
148 ptr->edp = pconf->edp;
149 ptr->prm = pconf->prm;
150 pconf->prm = NULL; // to prevent free
151 ptr->prmLen = pconf->prmLen;
152 memcpy(&ptr->deviceID, &pconf->deviceID, sizeof(OicUuid_t));
153 memcpy(&ptr->rowner, &pconf->rownerID, sizeof(OicUuid_t));
156 LL_PREPEND(*ppList, ptr);
157 OIC_LOG(INFO, TAG, "device added !");
165 * Add device information to list.
167 * @param[in] ppList List of OCProvisionDev_t.
168 * @param[in] pDev target device.
170 * @return OC_STACK_OK for success and errorcode otherwise.
172 OCStackResult addDev2(OCDirectPairingDev_t **ppList, OCDirectPairingDev_t *pDev)
176 OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
177 return OC_STACK_INVALID_PARAM;
180 OCDirectPairingDev_t *ptr = getDev(ppList, pDev->endpoint.addr, pDev->endpoint.port);
183 ptr = (OCDirectPairingDev_t *)OICCalloc(1, sizeof (OCDirectPairingDev_t));
186 OIC_LOG(ERROR, TAG, "Error while allocating memory for linkedlist node !!");
187 return OC_STACK_NO_MEMORY;
190 memcpy(&ptr->endpoint, &pDev->endpoint, sizeof(OCDevAddr));
191 ptr->connType = pDev->connType;
192 ptr->securePort = pDev->securePort;
193 ptr->edp = pDev->edp;
194 ptr->prmLen = pDev->prmLen;
195 ptr->prm = (OicSecPrm_t*)OICCalloc(ptr->prmLen, sizeof (OicSecPrm_t));
196 if (NULL == ptr->prm)
198 OIC_LOG(ERROR, TAG, "Error while allocating memory for prm !!");
199 return OC_STACK_NO_MEMORY;
201 memcpy(ptr->prm, pDev->prm, sizeof(OicSecPrm_t)*ptr->prmLen);
202 memcpy(&ptr->deviceID, &pDev->deviceID, sizeof(OicUuid_t));
203 memcpy(&ptr->rowner, &pDev->rowner, sizeof(OicUuid_t));
206 LL_PREPEND(*ppList, ptr);
207 OIC_LOG(INFO, TAG, "device added !");
216 * This function deletes list of provision target devices
218 * @param[in] pDevicesList List of OCProvisionDev_t.
220 void delList(OCDirectPairingDev_t *pList)
224 OCDirectPairingDev_t *del = NULL, *tmp = NULL;
225 LL_FOREACH_SAFE(pList, del, tmp)
227 LL_DELETE(pList, del);
236 bool DPGenerateQuery(bool isSecure,
237 const char* address, const uint16_t port,
238 const OCConnectivityType connType,
239 char* buffer, size_t bufferSize, const char* uri)
241 if(!address || !buffer || !uri)
243 OIC_LOG(ERROR, TAG, "DPGenerateQuery : Invalid parameters.");
247 static char QPREFIX_COAP[] = "coap://";
248 static char QPREFIX_COAPS[] = "coaps://";
249 static char QPREFIX_COAP_TCP[] = "coap+tcp://";
250 static char QPREFIX_COAPS_TCP[] = "coaps+tcp://";
253 char* prefix = (isSecure == true) ? QPREFIX_COAPS : QPREFIX_COAP;
255 switch(connType & CT_MASK_ADAPTER)
257 // @todo: Remove this ifdef. On Arduino, CT_ADAPTER_TCP resolves to the same value
258 // as CT_ADAPTER_IP, resulting in a compiler error.
262 prefix = (isSecure == true) ? QPREFIX_COAPS_TCP : QPREFIX_COAP_TCP;
266 switch(connType & CT_MASK_FLAGS & ~CT_FLAG_SECURE)
269 snRet = snprintf(buffer, bufferSize, "%s%s:%d%s",
270 prefix, address, port, uri);
273 snRet = snprintf(buffer, bufferSize, "%s[%s]:%d%s",
274 prefix, address, port, uri);
277 OIC_LOG(ERROR, TAG, "Unknown address format.");
280 // snprintf return value check
283 OIC_LOG_V(ERROR, TAG, "DPGenerateQuery : Error (snprintf) %d\n", snRet);
286 else if ((size_t)snRet >= bufferSize)
288 OIC_LOG_V(ERROR, TAG, "DPGenerateQuery : Truncated (snprintf) %d\n", snRet);
294 // TODO: We need to verify tinyDTLS in below cases
295 case CT_ADAPTER_GATT_BTLE:
296 case CT_ADAPTER_RFCOMM_BTEDR:
297 OIC_LOG(ERROR, TAG, "Not supported connectivity adapter.");
302 OIC_LOG(ERROR, TAG, "Unknown connectivity adapter.");
309 const OCDirectPairingDev_t* DPGetDiscoveredDevices()
311 return g_dp_discover;
314 const OCDirectPairingDev_t* DPGetPairedDevices()
321 delList(g_dp_discover);
322 delList(g_dp_paired);
326 * Callback handler of FinalizeDirectPairing.
328 * @param[in] ctx ctx value passed to callback from calling function.
329 * @param[in] UNUSED handle to an invocation
330 * @param[in] clientResponse Response from queries to remote servers.
331 * @return OC_STACK_DELETE_TRANSACTION to delete the transaction
332 * and OC_STACK_KEEP_TRANSACTION to keep it.
334 static OCStackApplicationResult DirectPairingFinalizeHandler(void *ctx, OCDoHandle UNUSED,
335 OCClientResponse *clientResponse)
337 OIC_LOG_V(INFO, TAG, "IN DirectPairingFinalizeHandler()");
341 OIC_LOG(ERROR, TAG, "Context is Null");
342 return OC_STACK_DELETE_TRANSACTION;
346 DPairData_t *dpairData = (DPairData_t*)ctx;
347 OCDirectPairingDev_t *peer = dpairData->peer;
348 OCDirectPairingResultCB resultCallback = dpairData->resultCallback;
352 if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
355 OIC_LOG(INFO, TAG, "DirectPairingFinalizeHandler : success PUT"
356 " request to /oic/sec/dpairing");
358 CAEndpoint_t endpoint;
359 memset(&endpoint, 0x00, sizeof(CAEndpoint_t));
360 OICStrcpy(endpoint.addr, MAX_ADDR_STR_SIZE_CA, peer->endpoint.addr);
361 endpoint.addr[MAX_ADDR_STR_SIZE_CA - 1] = '\0';
362 endpoint.port = peer->securePort;
364 OicUuid_t ptDeviceID = {.id={0}};
365 if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
367 OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
368 resultCallback(dpairData->userCtx, peer, OC_STACK_ERROR);
369 return OC_STACK_DELETE_TRANSACTION;
372 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
373 res = SavePairingPSK((OCDevAddr*)&endpoint, &peer->deviceID, &ptDeviceID, false);
374 if(OC_STACK_OK != res)
376 OIC_LOG(ERROR, TAG, "Failed to PairingPSK generation");
377 resultCallback(dpairData->userCtx, peer, res);
378 return OC_STACK_DELETE_TRANSACTION;
381 // close temporary sesion
382 CAResult_t caResult = CAcloseSslSession((const CAEndpoint_t*)&endpoint);
383 if(CA_STATUS_OK != caResult)
385 OIC_LOG(INFO, TAG, "Fail to close temporary dtls session");
388 caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL, CA_ADAPTER_IP);
389 if(CA_STATUS_OK != caResult)
391 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
393 #endif // __WITH_DTLS__ or __WITH_TLS__
395 OIC_LOG(INFO, TAG, "Direct-Papring was successfully completed.");
397 // update paired list
398 OCDirectPairingDev_t *dev = getDev(&g_dp_discover, peer->endpoint.addr,
399 peer->endpoint.port);
400 res = addDev2(&g_dp_paired, dev);
401 if (OC_STACK_OK != res)
403 OIC_LOG(ERROR, TAG, "Error while adding a device to paired list.");
406 resultCallback(dpairData->userCtx, peer, OC_STACK_OK);
408 return OC_STACK_DELETE_TRANSACTION;
412 OIC_LOG(INFO, TAG, "Direct-Papring received error response.");
417 OIC_LOG(ERROR, TAG, "DirectPairingFinalizeHandler received Null clientResponse");
420 resultCallback(dpairData->userCtx, peer, OC_STACK_ERROR);
422 return OC_STACK_DELETE_TRANSACTION;
426 * Finalize direct-pairing .
428 * @param[in] peer target device to establish direct-pairing.
429 * @param[in] resultCallback result event callback.
431 * @return OC_STACK_OK on success otherwise error.
433 OCStackResult FinalizeDirectPairing(void *ctx, OCDirectPairingDev_t* peer,
434 OCDirectPairingResultCB resultCallback)
438 return OC_STACK_INVALID_PARAM;
441 OicUuid_t deviceID = {.id={0}};
442 if (OC_STACK_OK != GetDoxmDeviceID(&deviceID))
444 OIC_LOG(ERROR, TAG, "Error while retrieving device ID");
445 return OC_STACK_ERROR;
448 OicSecDpairing_t dpair;
449 memset(&dpair, 0, sizeof(OicSecDpairing_t));
450 dpair.spm = (OicSecPrm_t)PRM_NOT_ALLOWED;
451 memcpy(&dpair.pdeviceID, &deviceID, sizeof(OicUuid_t));
453 OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
456 OIC_LOG(ERROR, TAG, "Failed to memory allocation");
457 return OC_STACK_NO_MEMORY;
459 secPayload->base.type = PAYLOAD_TYPE_SECURITY;
461 OCStackResult ret = DpairingToCBORPayload(&dpair, &(secPayload->securityData),
462 &(secPayload->payloadSize));
464 if(OC_STACK_OK != ret)
467 OIC_LOG(ERROR, TAG, "Failed to DpairingToCBORPayload");
468 return OC_STACK_NO_MEMORY;
470 OIC_LOG(INFO, TAG, "DPARING CBOR data:");
471 OIC_LOG_BUFFER(INFO, TAG, secPayload->securityData, secPayload->payloadSize);
473 char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
474 if(!DPGenerateQuery(true,
478 query, sizeof(query), OIC_RSRC_DPAIRING_URI))
480 OIC_LOG(ERROR, TAG, "DPDirectPairing : Failed to generate query");
481 return OC_STACK_ERROR;
483 OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
485 DPairData_t *dpairData = (DPairData_t *) OICCalloc(1, sizeof(DPairData_t));
486 if (dpairData == NULL)
488 OICFree(secPayload->securityData);
490 OIC_LOG(ERROR, TAG, "Unable to allocate memory");
491 return OC_STACK_NO_MEMORY;
493 dpairData->peer = peer;
494 dpairData->resultCallback = resultCallback;
495 dpairData->userCtx = ctx;
497 OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
498 cbData.cb = DirectPairingFinalizeHandler;
499 cbData.context = (void*)dpairData;
502 OCMethod method = OC_REST_PUT;
503 OCDoHandle handle = NULL;
504 OIC_LOG(DEBUG, TAG, "Sending DPAIRNG setting to resource server");
505 ret = OCDoResource(&handle, method, query,
506 &peer->endpoint, (OCPayload*)secPayload,
507 peer->connType, OC_LOW_QOS, &cbData, NULL, 0);
508 if(OC_STACK_OK != ret)
510 OIC_LOG(ERROR, TAG, "error in OCDoResource");
511 return OC_STACK_ERROR;
518 * Function to handle the handshake result in Direct-Pairing.
519 * This function will be invoked after DTLS handshake
520 * @param endPoint [IN] The remote endpoint.
521 * @param errorInfo [IN] Error information from the endpoint.
524 void DirectPairingDTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
526 OIC_LOG_V(INFO, TAG, "IN DirectPairingDTLSHandshakeCB");
529 if(g_dp_proceed_ctx && g_dp_proceed_ctx->peer && endpoint && info)
531 OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
532 endpoint->addr, endpoint->port, info->result);
534 OCDirectPairingDev_t *peer = g_dp_proceed_ctx->peer;
535 OCDirectPairingResultCB resultCallback = g_dp_proceed_ctx->resultCallback;
538 //Make sure the address matches.
539 if(strncmp(peer->endpoint.addr, endpoint->addr, sizeof(endpoint->addr)) == 0 &&
540 peer->securePort == endpoint->port)
542 //In case of success, send next coaps request.
543 if(CA_STATUS_OK == info->result)
545 OIC_LOG(INFO, TAG, "Now, finalize Direct-Pairing procedure.");
547 res = FinalizeDirectPairing(g_dp_proceed_ctx->userCtx, peer, resultCallback);
548 if(OC_STACK_OK != res)
550 OIC_LOG(ERROR, TAG, "Failed to finalize direct-pairing");
551 resultCallback(g_dp_proceed_ctx->userCtx, peer, res);
554 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
556 OIC_LOG(INFO, TAG, "DirectPairingDTLSHandshakeCB - Authentication failed");
557 resultCallback(g_dp_proceed_ctx->userCtx, peer, OC_STACK_AUTHENTICATION_FAILURE);
560 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
561 CAregisterSslHandshakeCallback(NULL);
562 #endif // __WITH_DTLS__ or __WITH_TLS__
563 res = RemoveCredential(&peer->deviceID);
564 if(OC_STACK_RESOURCE_DELETED != res)
566 OIC_LOG_V(ERROR, TAG, "Failed to remove temporal PSK : %d", res);
569 OICFree(g_dp_proceed_ctx);
570 g_dp_proceed_ctx = NULL;
574 OIC_LOG_V(INFO, TAG, "DirectPairingDTLSHandshakeCB - Not matched to peer address");
578 OIC_LOG_V(INFO, TAG, "OUT DirectPairingDTLSHandshakeCB");
582 * Callback handler of DPDirectPairing.
584 * @param[in] ctx ctx value passed to callback from calling function.
585 * @param[in] UNUSED handle to an invocation
586 * @param[in] clientResponse Response from queries to remote servers.
587 * @return OC_STACK_DELETE_TRANSACTION to delete the transaction
588 * and OC_STACK_KEEP_TRANSACTION to keep it.
590 static OCStackApplicationResult DirectPairingHandler(void *ctx, OCDoHandle UNUSED,
591 OCClientResponse *clientResponse)
593 OIC_LOG_V(INFO, TAG, "IN DirectPairingHandler.");
597 OIC_LOG(ERROR, TAG, "Context is Null");
598 return OC_STACK_DELETE_TRANSACTION;
601 OCStackResult res = OC_STACK_ERROR;
602 DPairData_t *dpairData = (DPairData_t*)ctx;
603 OCDirectPairingResultCB resultCallback = (OCDirectPairingResultCB)dpairData->resultCallback;
604 OicUuid_t subjectId = {.id={0}};
608 if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
611 OIC_LOG(INFO, TAG, "DirectPairingHandler : success POST request to /oic/sec/dpairing");
613 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
615 res = AddTmpPskWithPIN(&dpairData->peer->deviceID,
616 SYMMETRIC_PAIR_WISE_KEY,
617 (char*)dpairData->pin, DP_PIN_LENGTH,
618 &dpairData->peer->rowner, &subjectId);
619 VERIFY_SUCCESS(TAG, OC_STACK_OK == res, ERROR);
622 // Start to establish a secure channel with Pin-based PSK cipher suite
625 caresult = CAEnableAnonECDHCipherSuite(false);
626 VERIFY_SUCCESS(TAG, CA_STATUS_OK == caresult, ERROR);
628 caresult = CASelectCipherSuite(TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256, CA_ADAPTER_IP);
629 VERIFY_SUCCESS(TAG, CA_STATUS_OK == caresult, ERROR);
631 //Register proceeding peer info. & DTLS event handler to catch the dtls event while handshake
632 g_dp_proceed_ctx = dpairData;
633 res = CAregisterSslHandshakeCallback(DirectPairingDTLSHandshakeCB);
634 VERIFY_SUCCESS(TAG, CA_STATUS_OK == caresult, ERROR);
637 CAEndpoint_t *endpoint = (CAEndpoint_t *)OICCalloc(1, sizeof (CAEndpoint_t));
638 VERIFY_NON_NULL(TAG, endpoint, FATAL);
639 memcpy(endpoint,&dpairData->peer->endpoint,sizeof(CAEndpoint_t));
640 endpoint->port = dpairData->peer->securePort;
641 OIC_LOG_V(INFO, TAG, "Initiate DTLS handshake to %s(%d)", endpoint->addr,
644 caresult = CAInitiateHandshake(endpoint);
646 VERIFY_SUCCESS(TAG, CA_STATUS_OK == caresult, ERROR);
647 #endif // __WITH_DTLS__ or __WITH_TLS__
654 OIC_LOG(INFO, TAG, "DirectPairingHandler : fail POST request to /oic/sec/dpairing");
659 OIC_LOG(ERROR, TAG, "DirectPairingHandler received Null clientResponse");
662 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
664 #endif // __WITH_DTLS__ or __WITH_TLS__
666 if (OC_STACK_OK != res)
668 if (0 < strlen((const char*)subjectId.id))
670 RemoveCredential(&dpairData->peer->deviceID);
672 g_dp_proceed_ctx = NULL;
675 resultCallback(dpairData->userCtx, dpairData->peer, res);
677 OIC_LOG_V(INFO, TAG, "OUT DirectPairingHandler.");
678 return OC_STACK_DELETE_TRANSACTION;
682 * Start direct-pairing .
684 * @param[in] peer target device to establish direct-pairing.
685 * @param[in] pmSel selected pairing method.
686 * @param[in] pinNumber secret value for dtls connection.
688 * @return OC_STACK_OK on success otherwise error.
690 OCStackResult DPDirectPairing(void *ctx, OCDirectPairingDev_t* peer, OicSecPrm_t pmSel,
691 char *pinNumber, OCDirectPairingResultCB resultCallback)
693 if(NULL == peer || NULL == pinNumber)
695 return OC_STACK_INVALID_PARAM;
698 OicUuid_t deviceID = {.id={0}};
699 if (OC_STACK_OK != GetDoxmDeviceID(&deviceID))
701 OIC_LOG(ERROR, TAG, "Error while retrieving device ID");
702 return OC_STACK_ERROR;
705 OicSecDpairing_t dpair;
706 memset(&dpair, 0, sizeof(OicSecDpairing_t));
708 memcpy(&dpair.pdeviceID, &deviceID, sizeof(OicUuid_t));
710 OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
713 OIC_LOG(ERROR, TAG, "Failed to memory allocation");
714 return OC_STACK_NO_MEMORY;
716 secPayload->base.type = PAYLOAD_TYPE_SECURITY;
718 OCStackResult ret = DpairingToCBORPayload(&dpair, &(secPayload->securityData),
719 &(secPayload->payloadSize));
721 if(OC_STACK_OK != ret)
724 OIC_LOG(ERROR, TAG, "Failed to DpairingToCBORPayload");
725 return OC_STACK_NO_MEMORY;
727 OIC_LOG(INFO, TAG, "DPARING CBOR data:");
728 OIC_LOG_BUFFER(INFO, TAG, secPayload->securityData, secPayload->payloadSize);
730 char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
731 if(!DPGenerateQuery(false,
736 query, sizeof(query), OIC_RSRC_DPAIRING_URI))
738 OIC_LOG(ERROR, TAG, "DPDirectPairing : Failed to generate query");
739 return OC_STACK_ERROR;
741 OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
743 DPairData_t *dpairData = (DPairData_t *) OICCalloc(1, sizeof(DPairData_t));
744 if (dpairData == NULL)
746 OICFree(secPayload->securityData);
748 OIC_LOG(ERROR, TAG, "Unable to allocate memory");
749 return OC_STACK_NO_MEMORY;
751 dpairData->peer = peer;
752 memcpy(dpairData->pin, pinNumber, DP_PIN_LENGTH);
753 dpairData->resultCallback = resultCallback;
754 dpairData->userCtx = ctx;
756 OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
757 cbData.cb = DirectPairingHandler;
758 cbData.context = (void*)dpairData;
761 OCMethod method = OC_REST_POST;
762 OCDoHandle handle = NULL;
763 OIC_LOG(DEBUG, TAG, "Sending DPAIRNG setting to resource server");
764 ret = OCDoResource(&handle, method, query,
765 &peer->endpoint, (OCPayload*)secPayload,
766 peer->connType, OC_LOW_QOS, &cbData, NULL, 0);
767 if(OC_STACK_OK != ret)
769 OIC_LOG(ERROR, TAG, "error in OCDoResource");
770 return OC_STACK_ERROR;
778 * Callback handler for getting secure port information using /oic/res discovery.
780 * @param[in] ctx user context
781 * @param[in] handle Handle for response
782 * @param[in] clientResponse Response information(It will contain payload)
784 * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
785 * OC_STACK_DELETE_TRANSACTION to delete it.
787 static OCStackApplicationResult DirectPairingPortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
788 OCClientResponse *clientResponse)
790 OIC_LOG(INFO, TAG, "Callback Context for Direct-Pairing Secure Port DISCOVER "
791 "query recvd successfully");
797 if (NULL == clientResponse->payload)
799 OIC_LOG(INFO, TAG, "Skiping Null payload");
803 if (PAYLOAD_TYPE_DISCOVERY != clientResponse->payload->type)
805 OIC_LOG(INFO, TAG, "Wrong payload type");
806 return OC_STACK_DELETE_TRANSACTION;
809 uint16_t securePort = 0;
810 OCResourcePayload* resPayload = ((OCDiscoveryPayload*)clientResponse->payload)->resources;
811 OIC_LOG_PAYLOAD(INFO, clientResponse->payload);
813 if (resPayload && resPayload->secure)
815 securePort = resPayload->port;
819 OIC_LOG(INFO, TAG, "Can not find secure port information.");
820 return OC_STACK_DELETE_TRANSACTION;
823 OCDirectPairingDev_t *ptr = getDev(&g_dp_discover,
824 clientResponse->devAddr.addr, clientResponse->devAddr.port);
827 OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
828 return OC_STACK_DELETE_TRANSACTION;
830 ptr->securePort = securePort;
832 OIC_LOG(INFO, TAG, "Exiting DirectPairingPortDiscoveryHandler.");
835 return OC_STACK_DELETE_TRANSACTION;
839 OIC_LOG(INFO, TAG, "Skiping Null response");
841 return OC_STACK_DELETE_TRANSACTION;
845 * Callback handler for DPDeviceDiscovery API.
847 * @param[in] ctx User context
848 * @param[in] handle Handler for response
849 * @param[in] clientResponse Response information (It will contain payload)
850 * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
851 * OC_STACK_DELETE_TRANSACTION to delete it.
853 static OCStackApplicationResult DirectPairingDiscoveryHandler(void* ctx, OCDoHandle UNUSED,
854 OCClientResponse * clientResponse)
856 OIC_LOG(INFO, TAG, "Callback Context for Direct-Pairing DISCOVER query recvd successfully");
862 OIC_LOG_V(INFO, TAG, "StackResult: %d", clientResponse->result);
864 "Device =============> Discovered @ %s:%d",
865 clientResponse->devAddr.addr,
866 clientResponse->devAddr.port);
868 if (NULL == clientResponse->payload)
870 OIC_LOG(INFO, TAG, "Skiping Null payload");
871 return OC_STACK_KEEP_TRANSACTION;
873 if (OC_STACK_OK != clientResponse->result)
875 OIC_LOG(INFO, TAG, "Error in response");
876 return OC_STACK_KEEP_TRANSACTION;
879 OIC_LOG_PAYLOAD(INFO, clientResponse->payload);
880 OicSecPconf_t *pconf = NULL;
882 OCStackResult res = CBORPayloadToPconf(
883 ((OCSecurityPayload*)clientResponse->payload)->securityData,
885 if (OC_STACK_OK != res )
887 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
888 return OC_STACK_KEEP_TRANSACTION;
895 memcpy(&endpoint, &clientResponse->devAddr, sizeof(OCDevAddr));
897 OCStackResult res = addDev(&g_dp_discover, &endpoint,
898 clientResponse->connType, pconf);
899 DeletePconfBinData(pconf);
900 if (OC_STACK_OK != res)
902 OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
903 return OC_STACK_KEEP_TRANSACTION;
907 char rsrc_uri[MAX_URI_LENGTH+1] = {0};
908 int wr_len = snprintf(rsrc_uri, sizeof(rsrc_uri), "%s?%s=%s",
909 OC_RSRVD_WELL_KNOWN_URI, OC_RSRVD_RESOURCE_TYPE, OIC_RSRC_TYPE_SEC_DPAIRING);
910 if(wr_len <= 0 || (size_t)wr_len >= sizeof(rsrc_uri))
912 OIC_LOG(ERROR, TAG, "rsrc_uri_string_print failed");
913 return OC_STACK_KEEP_TRANSACTION;
916 //Try to the unicast discovery to getting secure port
917 char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
918 if(!DPGenerateQuery(false,
919 clientResponse->devAddr.addr, clientResponse->devAddr.port,
920 clientResponse->connType,
921 query, sizeof(query), rsrc_uri))
923 OIC_LOG(ERROR, TAG, "DirectPairingDiscoveryHandler : Failed to generate query");
924 return OC_STACK_KEEP_TRANSACTION;
926 OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
928 OCCallbackData cbData;
929 cbData.cb = &DirectPairingPortDiscoveryHandler;
930 cbData.context = NULL;
932 OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
933 clientResponse->connType, OC_LOW_QOS, &cbData, NULL, 0);
934 if(OC_STACK_OK != ret)
936 OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
937 return OC_STACK_KEEP_TRANSACTION;
941 OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
944 return OC_STACK_KEEP_TRANSACTION;
949 OIC_LOG(INFO, TAG, "Skiping Null response");
952 return OC_STACK_DELETE_TRANSACTION;
956 * Discover direct-pairing devices in the same IP subnet. .
958 * @param[in] waittime Timeout in seconds.
960 * @return OC_STACK_OK on success otherwise error.
962 OCStackResult DPDeviceDiscovery(unsigned short waittime)
964 OIC_LOG(DEBUG, TAG, "IN DPDeviceDiscovery");
968 delList(g_dp_discover);
969 g_dp_discover = NULL;
974 const char DP_DISCOVERY_QUERY[] = "/oic/sec/pconf";
976 OCCallbackData cbData;
977 cbData.cb = DirectPairingDiscoveryHandler;
978 cbData.context = NULL;
981 /* Start a DP discovery query*/
982 OIC_LOG_V(INFO, TAG, "Initiating Direct-Pairing Discovery : %s\n", DP_DISCOVERY_QUERY);
983 OCDoHandle handle = NULL;
984 ret = OCDoResource(&handle, OC_REST_DISCOVER, DP_DISCOVERY_QUERY, 0, 0, CT_DEFAULT,
985 OC_LOW_QOS, &cbData, NULL, 0);
986 if (ret != OC_STACK_OK)
988 OIC_LOG(ERROR, TAG, "OCStack resource error");
995 #if defined(_MSC_VER)
996 time_t startTime = NULL;
997 clock_res = (time(&startTime) == -1);
999 struct timespec startTime = {.tv_sec=0, .tv_nsec=0};
1000 #if defined(__ANDROID__) || _POSIX_TIMERS > 0
1001 clock_res = clock_gettime(CLOCK_MONOTONIC, &startTime);
1006 OIC_LOG(ERROR, TAG, "clock error");
1007 if(OC_STACK_OK != OCCancel(handle, OC_LOW_QOS, NULL, 0))
1009 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1011 return OC_STACK_ERROR;
1016 #if defined(_MSC_VER)
1017 time_t currTime = NULL;
1018 clock_res = (time(&currTime) == -1);
1020 struct timespec currTime = {.tv_sec=0, .tv_nsec=0};
1021 #if defined(__ANDROID__) || _POSIX_TIMERS > 0
1022 clock_res = clock_gettime(CLOCK_MONOTONIC, &currTime);
1027 OIC_LOG(ERROR, TAG, "clock error");
1028 ret = OC_STACK_ERROR;
1031 #if defined(_MSC_VER)
1032 long elapsed = currTime - startTime;
1034 long elapsed = (currTime.tv_sec - startTime.tv_sec);
1036 if (elapsed > waittime)
1042 struct timespec timeout = {.tv_sec=0, .tv_nsec=100000000L};
1044 nanosleep(&timeout, NULL);
1048 // Waiting for each response.
1049 ret = OCCancel(handle, OC_LOW_QOS, NULL, 0);
1050 if (OC_STACK_OK != ret)
1052 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1054 OIC_LOG(DEBUG, TAG, "OUT DPDeviceDiscovery");