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 OCStackResult CreateJustWorksSelectOxmPayload(OTMContext_t *otmCtx, uint8_t **payload, size_t *size)
  36 {
  37     if (!otmCtx || !otmCtx->selectedDeviceInfo || !payload || *payload || !size)
  38     {
  39         return OC_STACK_INVALID_PARAM;
  40     }
  41
  42     otmCtx->selectedDeviceInfo->doxm->oxmSel = OIC_JUST_WORKS;
  43     *payload = NULL;
  44     *size = 0;
  45
  46     return DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm, payload, size);
  47 }
  48
  49 OCStackResult CreateJustWorksOwnerTransferPayload(OTMContext_t* otmCtx, uint8_t **payload, size_t *size)
  50 {
  51     if (!otmCtx || !otmCtx->selectedDeviceInfo || !payload || *payload || !size)
  52     {
  53         return OC_STACK_INVALID_PARAM;
  54     }
  55
  56     OicUuid_t uuidPT = {.id={0}};
  57
  58     if (OC_STACK_OK != GetDoxmDeviceID(&uuidPT))
  59     {
  60         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
  61         return OC_STACK_ERROR;
  62     }
  63     memcpy(otmCtx->selectedDeviceInfo->doxm->owner.id, uuidPT.id , UUID_LENGTH);
  64
  65     *payload = NULL;
  66     *size = 0;
  67
  68     return DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm, payload, size);
  69 }
  70
  71 OCStackResult LoadSecretJustWorksCallback(OTMContext_t* UNUSED_PARAM)
  72 {
  73     //In case of 'just works', secret data not required
  74     (void)UNUSED_PARAM;
  75     return OC_STACK_OK;
  76 }
  77
  78 OCStackResult CreateSecureSessionJustWorksCallback(OTMContext_t* otmCtx)
  79 {
  80     OIC_LOG(INFO, TAG, "IN CreateSecureSessionJustWorksCallback");
  81     if (!otmCtx || !otmCtx->selectedDeviceInfo)
  82     {
  83         return OC_STACK_INVALID_PARAM;
  84     }
  85
  86     CAResult_t caresult = CAEnableAnonECDHCipherSuite(true);
  87     if (CA_STATUS_OK != caresult)
  88     {
  89         OIC_LOG_V(ERROR, TAG, "Unable to enable anon cipher suite");
  90         return OC_STACK_ERROR;
  91     }
  92     OIC_LOG(INFO, TAG, "Anonymous cipher suite Enabled.");
  93
  94     caresult  = CASelectCipherSuite(TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256);
  95     if (CA_STATUS_OK != caresult)
  96     {
  97         OIC_LOG_V(ERROR, TAG, "Failed to select TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256");
  98         caresult = CAEnableAnonECDHCipherSuite(false);
  99         if (CA_STATUS_OK != caresult)
 100         {
 101             OIC_LOG_V(ERROR, TAG, "Unable to enable anon cipher suite");
 102         }
 103         else
 104         {
 105             OIC_LOG(INFO, TAG, "Anonymous cipher suite Disabled.");
 106         }
 107         return OC_STACK_ERROR;
 108     }
 109     OIC_LOG(INFO, TAG, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA_256 cipher suite selected.");
 110
 111     OCProvisionDev_t *selDevInfo = otmCtx->selectedDeviceInfo;
 112     CAEndpoint_t *endpoint = (CAEndpoint_t *)OICCalloc(1, sizeof (CAEndpoint_t));
 113     if(NULL == endpoint)
 114     {
 115         return OC_STACK_NO_MEMORY;
 116     }
 117     memcpy(endpoint, &selDevInfo->endpoint, sizeof(CAEndpoint_t));
 118     endpoint->port = selDevInfo->securePort;
 119
 120     caresult = CAInitiateHandshake(endpoint);
 121     OICFree(endpoint);
 122     if (CA_STATUS_OK != caresult)
 123     {
 124         OIC_LOG_V(ERROR, TAG, "DTLS handshake failure.");
 125         return OC_STACK_ERROR;
 126     }
 127
 128     OIC_LOG(INFO, TAG, "OUT CreateSecureSessionJustWorksCallback");
 129     return OC_STACK_OK;
 130 }