/**
* Response handler for update operation mode.
*
* @param[in] ctx ctx value passed to callback from calling function.
* @param[in] UNUSED handle to an invocation
* @param[in] clientResponse Response from queries to remote servers.
* @return OC_STACK_DELETE_TRANSACTION to delete the transaction
* and OC_STACK_KEEP_TRANSACTION to keep it.
*/
static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
OCClientResponse *clientResponse)
{
OC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
VERIFY_NON_NULL(TAG, clientResponse, WARNING);
VERIFY_NON_NULL(TAG, ctx, WARNING);
OTMContext_t* otmCtx = (OTMContext_t*)ctx;
(void) UNUSED;
if (OC_STACK_OK == clientResponse->result)
{
OCStackResult res = OC_STACK_ERROR;
OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
//DTLS Handshake
//Load secret for temporal secure session.
if(g_OTMDatas[selOxm].loadSecretCB)
{
res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
if(OC_STACK_OK != res)
{
OC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
SetResult(otmCtx, res);
return OC_STACK_DELETE_TRANSACTION;
}
}
//Try DTLS handshake to generate secure session
if(g_OTMDatas[selOxm].createSecureSessionCB)
{
res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
if(OC_STACK_OK != res)
{
OC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
SetResult(otmCtx, res);
return OC_STACK_DELETE_TRANSACTION;
}
}
//Send request : PUT /oic/sec/doxm [{"Owned":"True", .. , "Owner":"PT's UUID"}]
res = PutOwnershipInformation(otmCtx);
if(OC_STACK_OK != res)
{
OC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
SetResult(otmCtx, res);
}
}
else
{
OC_LOG(ERROR, TAG, "Error while update operation mode");
SetResult(otmCtx, clientResponse->result);
}
OC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
exit:
return OC_STACK_DELETE_TRANSACTION;
}
/**
* Function to handle the handshake result in OTM.
* This function will be invoked after DTLS handshake
* @param endPoint [IN] The remote endpoint.
* @param errorInfo [IN] Error information from the endpoint.
* @return NONE
*/
void DTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
{
if(g_otmCtx && endpoint && info)
{
OC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
endpoint->addr, endpoint->port, info->result);
//Make sure the address matches.
if(strncmp(g_otmCtx->selectedDeviceInfo->endpoint.addr,
endpoint->addr,
sizeof(endpoint->addr)) == 0 &&
g_otmCtx->selectedDeviceInfo->securePort == endpoint->port)
{
OCStackResult res;
CARegisterDTLSHandshakeCallback(NULL);
//In case of success, send next coaps request.
if(CA_STATUS_OK == info->result)
{
//Send request : PUT /oic/sec/doxm [{"Owned":"True", .. , "Owner":"PT's UUID"}]
res = PutOwnershipInformation(g_otmCtx);
if(OC_STACK_OK != res)
{
OC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
SetResult(g_otmCtx, res);
}
}
//In case of failure, re-start the ownership transfer in case of PIN OxM
else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
{
g_otmCtx->selectedDeviceInfo->doxm->owned = false;
g_otmCtx->attemptCnt++;
if(g_otmCtx->selectedDeviceInfo->doxm->oxmSel == OIC_RANDOM_DEVICE_PIN)
{
res = RemoveCredential(&g_otmCtx->subIdForPinOxm);
if(OC_STACK_RESOURCE_DELETED != res)
{
OC_LOG_V(ERROR, TAG, "Failed to remove temporal PSK : %d", res);
SetResult(g_otmCtx, res);
return;
}
if(WRONG_PIN_MAX_ATTEMP > g_otmCtx->attemptCnt)
{
res = StartOwnershipTransfer(g_otmCtx, g_otmCtx->selectedDeviceInfo);
if(OC_STACK_OK != res)
{
SetResult(g_otmCtx, res);
OC_LOG(ERROR, TAG, "Failed to Re-StartOwnershipTransfer");
}
}
else
{
SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
}
}
else
{
SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
}
}
}
}
}
