resource/csdk/security/provisioning/src/oxmjustworks.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2015 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   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
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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.
  18  *
  19  * *****************************************************************/
  20
  21 #include <memory.h>
  22 #include "ocstack.h"
  23 #include "securevirtualresourcetypes.h"
  24 #include "doxmresource.h"
  25 #include "cacommon.h"
  26 #include "cainterface.h"
  27 #include "oic_malloc.h"
  28 #include "logger.h"
  29 #include "global.h"
  30 #include "pmtypes.h"
  31 #include "ownershiptransfermanager.h"
  32
  33 #define TAG "OXM_JustWorks"
  34
  35 char* CreateJustWorksSelectOxmPayload(OTMContext_t* otmCtx)
  36 {
  37     if(!otmCtx || !otmCtx->selectedDeviceInfo)
  38     {
  39         return NULL;
  40     }
  41
  42     otmCtx->selectedDeviceInfo->doxm->oxmSel = OIC_JUST_WORKS;
  43     return BinToDoxmJSON(otmCtx->selectedDeviceInfo->doxm);
  44 }
  45
  46 char* CreateJustWorksOwnerTransferPayload(OTMContext_t* otmCtx)
  47 {
  48     if(!otmCtx || !otmCtx->selectedDeviceInfo)
  49     {
  50         return NULL;
  51     }
  52
  53     OicUuid_t uuidPT = {.id={0}};
  54
  55     if (OC_STACK_OK != GetDoxmDeviceID(&uuidPT))
  56     {
  57         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
  58         return NULL;
  59     }
  60     memcpy(otmCtx->selectedDeviceInfo->doxm->owner.id, uuidPT.id , UUID_LENGTH);
  61
  62     return BinToDoxmJSON(otmCtx->selectedDeviceInfo->doxm);
  63 }
  64
  65 OCStackResult LoadSecretJustWorksCallback(OTMContext_t* UNUSED_PARAM)
  66 {
  67     //In case of 'just works', secret data not required
  68     (void)UNUSED_PARAM;
  69     return OC_STACK_OK;
  70 }
  71
  72 OCStackResult CreateSecureSessionJustWorksCallback(OTMContext_t* otmCtx)
  73 {
  74     OIC_LOG(INFO, TAG, "IN CreateSecureSessionJustWorksCallback");
  75     if(!otmCtx || !otmCtx->selectedDeviceInfo)
  76     {
  77         return OC_STACK_INVALID_PARAM;
  78     }
  79
  80     CAResult_t caresult = CAEnableAnonECDHCipherSuite(true);
  81     if (CA_STATUS_OK != caresult)
  82     {
  83         OIC_LOG_V(ERROR, TAG, "Unable to enable anon cipher suite");
  84         return OC_STACK_ERROR;
  85     }
  86     OIC_LOG(INFO, TAG, "Anonymous cipher suite Enabled.");
  87
  88     caresult  = CASelectCipherSuite(TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256);
  89     if (CA_STATUS_OK != caresult)
  90     {
  91         OIC_LOG_V(ERROR, TAG, "Failed to select TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256");
  92         caresult = CAEnableAnonECDHCipherSuite(false);
  93         if (CA_STATUS_OK != caresult)
  94         {
  95             OIC_LOG_V(ERROR, TAG, "Unable to enable anon cipher suite");
  96         }
  97         else
  98         {
  99             OIC_LOG(INFO, TAG, "Anonymous cipher suite Disabled.");
 100         }
 101         return OC_STACK_ERROR;
 102     }
 103     OIC_LOG(INFO, TAG, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256 cipher suite selected.");
 104
 105     OCProvisionDev_t* selDevInfo = otmCtx->selectedDeviceInfo;
 106     CAEndpoint_t *endpoint = (CAEndpoint_t *)OICCalloc(1, sizeof (CAEndpoint_t));
 107     if(NULL == endpoint)
 108     {
 109         return OC_STACK_NO_MEMORY;
 110     }
 111     memcpy(endpoint,&selDevInfo->endpoint,sizeof(CAEndpoint_t));
 112     endpoint->port = selDevInfo->securePort;
 113
 114     caresult = CAInitiateHandshake(endpoint);
 115     OICFree(endpoint);
 116     if (CA_STATUS_OK != caresult)
 117     {
 118         OIC_LOG_V(ERROR, TAG, "DTLS handshake failure.");
 119         return OC_STACK_ERROR;
 120     }
 121
 122     OIC_LOG(INFO, TAG, "OUT CreateSecureSessionJustWorksCallback");
 123     return OC_STACK_OK;
 124 }