service/easy-setup/mediator/richsdk/src/EnrolleeSecurity.cpp

   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 "base64.h"
  22
  23 #include "EnrolleeSecurity.h"
  24 #include "oxmjustworks.h"
  25 #include "oxmrandompin.h"
  26 #include "EnrolleeResource.h"
  27 #include "logger.h"
  28 #include "ESException.h"
  29 #include "oic_malloc.h"
  30 #include "provisioningdatabasemanager.h"
  31 #include "oic_string.h"
  32 #include "utlist.h"
  33
  34 namespace OIC
  35 {
  36     namespace Service
  37     {
  38         #define MAX_PERMISSION_LENGTH (5)
  39         #define CREATE (1)
  40         #define READ (2)
  41         #define UPDATE (4)
  42         #define DELETE (8)
  43         #define NOTIFY (16)
  44         #define DASH '-'
  45         #define DISCOVERY_TIMEOUT (10)
  46
  47         //TODO : Currently discovery timeout for owned and unowned devices is fixed as 5
  48         // The value should be accepted from the application as a parameter during ocplatform
  49         // config call
  50         #define ES_SEC_DISCOVERY_TIMEOUT 5
  51
  52         EnrolleeSecurity::EnrolleeSecurity(
  53             std::shared_ptr< OC::OCResource > resource,
  54             const std::string secDbPath)
  55         {
  56             (void) secDbPath;
  57             m_ocResource = resource;
  58         }
  59
  60         void EnrolleeSecurity::registerCallbackHandler(
  61             const SecurityProvStatusCb securityProvStatusCb,
  62             const SecurityPinCb securityPinCb,
  63             const SecProvisioningDbPathCb secProvisioningDbPathCb)
  64         {
  65             m_securityProvStatusCb = securityProvStatusCb;
  66             m_securityPinCb = securityPinCb;
  67             m_secProvisioningDbPathCb = secProvisioningDbPathCb;
  68         }
  69
  70         std::shared_ptr< OC::OCSecureResource > EnrolleeSecurity::findEnrolleeSecurityResource(
  71             DeviceList_t &list)
  72         {
  73             for (unsigned int i = 0; i < list.size(); i++)
  74             {
  75                 if(m_ocResource->sid() == list[i]->getDeviceID().c_str())
  76                 {
  77                     OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Device %d ID %s ", i + 1,
  78                             list[i]->getDeviceID().c_str());
  79                     OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "From IP :%s",
  80                                                             list[i]->getDevAddr().c_str());
  81                     return list[i];
  82                 }
  83             }
  84             OIC_LOG(ERROR, ENROLEE_SECURITY_TAG,"Error!!! DeviceList_t is NULL");
  85             return NULL;
  86         }
  87
  88         void EnrolleeSecurity::convertUUIDToString(const uint8_t uuid[UUID_SIZE],
  89                                                               std::string& uuidString)
  90         {
  91             char uuidArray[UUID_STRING_SIZE] = {'\0',};
  92             int ret = snprintf(uuidArray, UUID_STRING_SIZE,
  93                     "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  94                     uuid[0], uuid[1], uuid[2], uuid[3],
  95                     uuid[4], uuid[5], uuid[6], uuid[7],
  96                     uuid[8], uuid[9], uuid[10], uuid[11],
  97                     uuid[12], uuid[13], uuid[14], uuid[15]
  98                     );
  99
 100             if (ret != UUID_STRING_SIZE - 1)
 101             {
 102                 return;
 103             }
 104
 105             uuidString = uuidArray;
 106         }
 107
 108         void EnrolleeSecurity::convertStringToUUID(OicUuid_t& uuid,
 109                                                               const std::string uuidString)
 110         {
 111             size_t outBufSize = B64DECODE_OUT_SAFESIZE((uuidString.length() + 1));
 112             uint8_t* outKey = (uint8_t*)OICCalloc(1, outBufSize);
 113             uint32_t outKeySize = 0;
 114             if(NULL == outKey)
 115             {
 116                 OIC_LOG (ERROR, ENROLEE_SECURITY_TAG, "Failed to memoray allocation.");
 117                 throw ESBadRequestException ("Failed to memoray allocation.");
 118             }
 119
 120             if(B64_OK == b64Decode((char*)uuidString.c_str(),
 121                                     uuidString.length(),
 122                                     outKey,
 123                                     outBufSize,
 124                                     &outKeySize))
 125             {
 126                 memcpy(uuid.id, outKey, outKeySize);
 127             }
 128             else
 129             {
 130                 OIC_LOG (ERROR, ENROLEE_SECURITY_TAG, "Failed to base64 decoding.");
 131                 throw ESBadRequestException ("Failed to base64 decoding.");
 132             }
 133
 134             OICFree(outKey);
 135         }
 136
 137         void EnrolleeSecurity::ownershipTransferCb(OC::PMResultList_t *result, int hasError)
 138         {
 139             if (hasError)
 140             {
 141                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG,"Error!!! in OwnershipTransfer");
 142
 143                 std::string uuid;
 144                 convertUUIDToString(result->at(0).deviceId.id, uuid);
 145                 std::shared_ptr< SecProvisioningStatus > securityProvisioningStatus =
 146                         std::make_shared< SecProvisioningStatus >(uuid, ES_ERROR);
 147                 m_securityProvStatusCb(securityProvisioningStatus);
 148                 return;
 149             }
 150             else
 151             {
 152                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "ownershipTransferCb : Received provisioning results: ");
 153                 for (unsigned int i = 0; i < result->size(); i++)
 154                 {
 155                     OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Result is = %d for device",result->at(i).res);
 156                     std::string uuid;
 157                     convertUUIDToString(result->at(0).deviceId.id, uuid);
 158
 159                     OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "UUID : %s",uuid.c_str());
 160                     std::shared_ptr< SecProvisioningStatus > securityProvisioningStatus =
 161                             std::make_shared< SecProvisioningStatus >(uuid, ES_OK);
 162                     m_securityProvStatusCb(securityProvisioningStatus);
 163                     return;
 164                 }
 165
 166                 delete result;
 167             }
 168         }
 169
 170         void EnrolleeSecurity::provisionOwnership()
 171         {
 172             OC::DeviceList_t pUnownedDevList, pOwnedDevList;
 173
 174             pOwnedDevList.clear();
 175             pUnownedDevList.clear();
 176
 177             OCStackResult result = OC_STACK_ERROR;
 178
 179             result = OCSecure::discoverOwnedDevices(ES_SEC_DISCOVERY_TIMEOUT,
 180                     pOwnedDevList);
 181             if (result != OC_STACK_OK)
 182             {
 183                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "Owned Discovery failed.");
 184                 //Throw exception
 185                 throw ESPlatformException(result);
 186             }
 187             else if (pOwnedDevList.size())
 188             {
 189                 OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Found owned devices. Count =%d",
 190                         pOwnedDevList.size());
 191                 std::shared_ptr< OC::OCSecureResource > ownedDevice =
 192                     findEnrolleeSecurityResource(pOwnedDevList);
 193
 194                 if (ownedDevice)
 195                 {
 196                     std::shared_ptr< SecProvisioningStatus > securityProvisioningStatus =
 197                             std::make_shared< SecProvisioningStatus >(ownedDevice->getDeviceID(), ES_OK);
 198                     m_securityProvStatusCb(securityProvisioningStatus);
 199                     return;
 200                 }
 201             }
 202
 203             result = OCSecure::discoverUnownedDevices(ES_SEC_DISCOVERY_TIMEOUT, pUnownedDevList);
 204             if (result != OC_STACK_OK)
 205             {
 206                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "UnOwned Discovery failed.");
 207                 //Throw exception
 208                 throw ESPlatformException(result);
 209             }
 210             else if (pUnownedDevList.size())
 211             {
 212                 OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Found Unowned devices. Count =%d",
 213                         pUnownedDevList.size());
 214
 215                 m_unownedDevice = findEnrolleeSecurityResource(pUnownedDevList);
 216                 if (m_unownedDevice)
 217                 {
 218                     if(isOwnedDeviceRegisteredInSVRDB())
 219                     {
 220                         OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG,
 221                             "Found Unowned device's DevID at DB of ownedDevices list");
 222
 223                         OC::ResultCallBack removeDeviceWithUuidCB = std::bind(
 224                                 &EnrolleeSecurity::removeDeviceWithUuidCB,
 225                                 this, std::placeholders::_1, std::placeholders::_2);
 226
 227                         OCSecure::removeDeviceWithUuid(DISCOVERY_TIMEOUT,
 228                                                        m_ocResource->sid(),
 229                                                        removeDeviceWithUuidCB);
 230                     }
 231                     else
 232                     {
 233                         performOwnershipTransfer();
 234                     }
 235                 }
 236                 else
 237                 {
 238                     OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "No matched unowned devices found.");
 239                     throw ESException("No matched unowned devices found.");
 240                 }
 241             }
 242             else
 243             {
 244                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "No unowned devices found.");
 245                 throw ESException("No unowned devices found.");
 246             }
 247         }
 248
 249         void EnrolleeSecurity::performOwnershipTransfer()
 250         {
 251             OCStackResult result = OC_STACK_ERROR;
 252
 253             OTMCallbackData_t justWorksCBData;
 254             justWorksCBData.loadSecretCB = LoadSecretJustWorksCallback;
 255             justWorksCBData.createSecureSessionCB = CreateSecureSessionJustWorksCallback;
 256             justWorksCBData.createSelectOxmPayloadCB = CreateJustWorksSelectOxmPayload;
 257             justWorksCBData.createOwnerTransferPayloadCB =
 258                     CreateJustWorksOwnerTransferPayload;
 259             OCSecure::setOwnerTransferCallbackData(OIC_JUST_WORKS, &justWorksCBData, NULL);
 260
 261             OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Transfering ownership for : %s ",
 262                     m_unownedDevice->getDeviceID().c_str());
 263
 264             OC::ResultCallBack ownershipTransferCb = std::bind(
 265                     &EnrolleeSecurity::ownershipTransferCb, this, std::placeholders::_1,
 266                     std::placeholders::_2);
 267
 268             result = m_unownedDevice->doOwnershipTransfer(ownershipTransferCb);
 269             if (result != OC_STACK_OK)
 270             {
 271                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "doOwnershipTransfer is failed");
 272                 throw ESPlatformException(result);
 273             }
 274         }
 275
 276         void EnrolleeSecurity::removeDeviceWithUuidCB(OC::PMResultList_t *result, int hasError)
 277         {
 278             if (hasError)
 279             {
 280                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Error in removeDeviceWithUuid operation!");
 281                throw ESException("removeDeviceWithUuid Error");
 282             }
 283
 284             else
 285             {
 286                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Received provisioning results: ");
 287
 288                for (unsigned int i = 0; i < result->size(); i++)
 289                {
 290                     std::string uuid;
 291                     convertUUIDToString(result->at(i).deviceId.id, uuid);
 292
 293                     OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG,
 294                         "Result is = %d for device %s",  result->at(i).res, uuid.c_str());
 295                }
 296                performOwnershipTransfer();
 297             }
 298         }
 299
 300         bool EnrolleeSecurity::isOwnedDeviceRegisteredInSVRDB()
 301         {
 302             OCStackResult res = OC_STACK_ERROR;
 303
 304             OCUuidList_t *uuidList = NULL;
 305             size_t numOfDevices = 0;
 306
 307             res = PDMGetOwnedDevices(&uuidList, &numOfDevices);
 308             if (OC_STACK_OK != res)
 309             {
 310                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "Error while getting info from DB");
 311                 return false;
 312             }
 313
 314             OCUuidList_t *pUuidList = uuidList;
 315
 316             while (pUuidList)
 317             {
 318                 std::string uuid;
 319                 convertUUIDToString(pUuidList->dev.id, uuid);
 320                 OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG,
 321                     "m_ocResource->sid(): %s, cur DB UUID %s",
 322                     m_ocResource->sid().c_str(), uuid.c_str());
 323                 if(m_ocResource->sid() == uuid.c_str())
 324                 {
 325                     return true;
 326                 }
 327                 pUuidList = pUuidList->next;
 328             }
 329             return false;
 330         }
 331
 332
 333         std::string EnrolleeSecurity::getUUID() const
 334         {
 335             return m_ocResource->sid();
 336         };
 337
 338 #if defined(__WITH_DTLS__) && defined(__WITH_TLS__)
 339         void EnrolleeSecurity::provisionSecurityForCloudServer(
 340             std::string cloudUuid, int credId)
 341         {
 342             // Need to discover Owned device in a given network, again
 343             OC::DeviceList_t pOwnedDevList;
 344             std::shared_ptr< OC::OCSecureResource > ownedDevice = NULL;
 345
 346             pOwnedDevList.clear();
 347
 348             OCStackResult result;
 349
 350             result = OCSecure::discoverOwnedDevices(ES_SEC_DISCOVERY_TIMEOUT,
 351                     pOwnedDevList);
 352             if (result != OC_STACK_OK)
 353             {
 354                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "Owned Discovery failed.");
 355                 //Throw exception
 356                 throw ESPlatformException(result);
 357             }
 358             else if (pOwnedDevList.size())
 359             {
 360                 OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Found owned devices. Count =%d",
 361                         pOwnedDevList.size());
 362                 ownedDevice = findEnrolleeSecurityResource(pOwnedDevList);
 363
 364                 if (!ownedDevice)
 365                 {
 366                     OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Not found matched owned device.");
 367                     throw ESException("Not found matched owned device.");
 368                 }
 369             }
 370             else
 371             {
 372                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Not found owned devices.");
 373                 throw ESException("Not found owned devices.");
 374             }
 375
 376             if(performACLProvisioningForCloudServer(ownedDevice, cloudUuid) != ESResult::ES_OK)
 377             {
 378                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "error performACLProvisioningForCloudServer");
 379                 throw ESException("error performACLProvisioningForCloudServer");
 380             }
 381
 382             if(performCertProvisioningForCloudServer(ownedDevice, credId) != ESResult::ES_OK)
 383             {
 384                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "error performCertProvisioningForCloudServer");
 385                 throw ESException("error performCertProvisioningForCloudServer");
 386             }
 387         }
 388
 389         ESResult EnrolleeSecurity::performCertProvisioningForCloudServer(
 390             std::shared_ptr< OC::OCSecureResource > ownedDevice, int credId)
 391         {
 392             ESResult res = ESResult::ES_ERROR;
 393
 394             if(!ownedDevice)
 395             {
 396                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Invalid param");
 397                 return res;
 398             }
 399             OC::ResultCallBack CertProvisioningCb = std::bind(
 400                             &EnrolleeSecurity::CertProvisioningCb, this, std::placeholders::_1,
 401                             std::placeholders::_2);
 402             OCStackResult rst = ownedDevice->provisionTrustCertChain(SIGNED_ASYMMETRIC_KEY,
 403                                                                     static_cast<uint16_t>(credId),
 404                                                                     CertProvisioningCb);
 405             if(OC_STACK_OK != rst)
 406             {
 407                 OIC_LOG_V(ERROR, ENROLEE_SECURITY_TAG, "provisionTrustCertChain error: %d", rst);
 408                 return res;
 409             }
 410
 411             std::unique_lock<std::mutex> lck(m_mtx);
 412             m_cond.wait_for(lck, std::chrono::seconds(ES_SEC_DISCOVERY_TIMEOUT));
 413
 414             if(certResult)
 415             {
 416                 res = ESResult::ES_OK;
 417             }
 418
 419             return res;
 420         }
 421
 422         ESResult EnrolleeSecurity::performACLProvisioningForCloudServer(
 423             std::shared_ptr< OC::OCSecureResource > ownedDevice, std::string& cloudUuid)
 424         {
 425             ESResult res = ESResult::ES_ERROR;
 426
 427             if(!ownedDevice)
 428             {
 429                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Invalid param");
 430                 return res;
 431             }
 432             if(cloudUuid.empty())
 433             {
 434                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Invalid param");
 435                 return res;
 436             }
 437
 438             OicUuid_t uuid;
 439             convertStringToUUID(uuid, cloudUuid);
 440
 441             // Create Acl for Cloud Server to be provisioned to Enrollee
 442             OicSecAcl_t* acl = createAcl(uuid);
 443             if(!acl)
 444             {
 445                 OIC_LOG(ERROR, ENROLEE_SECURITY_TAG, "createAcl error return");
 446                 return res;
 447             }
 448
 449             OC::ResultCallBack aclProvisioningCb = std::bind(
 450                             &EnrolleeSecurity::ACLProvisioningCb, this, std::placeholders::_1,
 451                             std::placeholders::_2);
 452             // ACL provisioning to Enrollee
 453             OCStackResult rst = ownedDevice->provisionACL(acl, aclProvisioningCb);
 454             if(OC_STACK_OK != rst)
 455             {
 456                 OIC_LOG_V(ERROR, ENROLEE_SECURITY_TAG, "OCProvisionACL API error: %d", rst);
 457                 return res;
 458             }
 459
 460             std::unique_lock<std::mutex> lck(m_mtx);
 461             m_cond.wait_for(lck, std::chrono::seconds(ES_SEC_DISCOVERY_TIMEOUT));
 462
 463             if(aclResult)
 464             {
 465                 res = ESResult::ES_OK;
 466             }
 467
 468             return res;
 469         }
 470
 471         OicSecAcl_t* EnrolleeSecurity::createAcl(const OicUuid_t cloudUuid)
 472         {
 473             // allocate memory for |acl| struct
 474             OicSecAcl_t* acl = (OicSecAcl_t*) OICCalloc(1, sizeof(OicSecAcl_t));
 475             if(!acl)
 476             {
 477                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "createAcl: OICCalloc error return");
 478                 return NULL;  // not need to 'goto' |ERROR| before allocating |acl|
 479             }
 480             OicSecAce_t* ace = (OicSecAce_t*) OICCalloc(1, sizeof(OicSecAce_t));
 481             if(!ace)
 482             {
 483                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG,  "createAcl: OICCalloc error return");
 484                 return NULL;  // not need to 'goto' |ERROR| before allocating |acl|
 485             }
 486             LL_APPEND(acl->aces, ace);
 487
 488             memcpy(&ace->subjectuuid, &cloudUuid, UUID_LENGTH);
 489
 490             OicSecRsrc_t* rsrc = (OicSecRsrc_t*)OICCalloc(1, sizeof(OicSecRsrc_t));
 491             if(!rsrc)
 492             {
 493                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "createAcl: OICCalloc error return");
 494                 OCDeleteACLList(acl);
 495                 return NULL;
 496             }
 497
 498             char href[] = "*";
 499             size_t len = strlen(href)+1;  // '1' for null termination
 500             rsrc->href = (char*) OICCalloc(len, sizeof(char));
 501             if(!rsrc->href)
 502             {
 503                 OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG,  "createAcl: OICCalloc error return");
 504                 OCDeleteACLList(acl);
 505                 return NULL;
 506             }
 507             OICStrcpy(rsrc->href, len, href);
 508
 509             size_t arrLen = 1;
 510             rsrc->typeLen = arrLen;
 511             rsrc->types = (char**)OICCalloc(arrLen, sizeof(char*));
 512             rsrc->interfaces = (char**)OICCalloc(arrLen, sizeof(char*));
 513             rsrc->types[0] = OICStrdup("rt");   // ignore
 514             rsrc->interfaces[0] = OICStrdup("if");  // ignore
 515
 516             LL_APPEND(ace->resources, rsrc);
 517
 518             ace->permission = 31;   // R/W/U/D
 519
 520             return acl;
 521         }
 522
 523         void EnrolleeSecurity::ACLProvisioningCb(PMResultList_t *result, int hasError)
 524         {
 525             if (hasError)
 526             {
 527                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Error in provisioning operation!");
 528                aclResult = false;
 529             }
 530             else
 531             {
 532                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Received provisioning results: ");
 533
 534                std::string devUuid;
 535                for (unsigned int i = 0; i < result->size(); i++)
 536                {
 537                    convertUUIDToString(result->at(i).deviceId.id, devUuid);
 538                    OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Result is = %d  for device %s",
 539                                                            result->at(i).res, devUuid.c_str());
 540                }
 541                delete result;
 542                aclResult = true;
 543             }
 544             m_cond.notify_all();
 545         }
 546
 547         void EnrolleeSecurity::CertProvisioningCb(PMResultList_t *result, int hasError)
 548         {
 549             if (hasError)
 550             {
 551                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Error in provisioning operation!");
 552                aclResult = false;
 553             }
 554             else
 555             {
 556                OIC_LOG(DEBUG, ENROLEE_SECURITY_TAG, "Received provisioning results: ");
 557
 558                std::string devUuid;
 559                for (unsigned int i = 0; i < result->size(); i++)
 560                {
 561                    convertUUIDToString(result->at(i).deviceId.id, devUuid);
 562                    OIC_LOG_V(DEBUG, ENROLEE_SECURITY_TAG, "Result is = %d  for device %s",
 563                                                            result->at(i).res, devUuid.c_str());
 564                }
 565                delete result;
 566                certResult= true;
 567             }
 568             m_cond.notify_all();
 569         }
 570 #endif //defined(__WITH_DTLS__) && defined(__WITH_TLS__)
 571     }
 572 }