Source/charon/sa/states/ike_sa_init_responded.c

   1 /**
   2  * @file ike_sa_init_responded.c
   3  *
   4  * @brief State of a IKE_SA after responding to an IKE_SA_INIT request
   5  *
   6  */
   7
   8 /*
   9  * Copyright (C) 2005 Jan Hutter, Martin Willi
  10  * Hochschule fuer Technik Rapperswil
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  19  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  20  * for more details.
  21  */
  22
  23 #include "ike_sa_init_responded.h"
  24
  25 #include <daemon.h>
  26 #include <utils/allocator.h>
  27 #include <sa/authenticator.h>
  28 #include <sa/child_sa.h>
  29 #include <encoding/payloads/ts_payload.h>
  30 #include <encoding/payloads/sa_payload.h>
  31 #include <encoding/payloads/id_payload.h>
  32 #include <encoding/payloads/auth_payload.h>
  33 #include <encoding/payloads/notify_payload.h>
  34 #include <transforms/signers/signer.h>
  35 #include <transforms/crypters/crypter.h>
  36 #include <sa/states/ike_sa_established.h>
  37
  38
  39 typedef struct private_ike_sa_init_responded_t private_ike_sa_init_responded_t;
  40
  41 /**
  42  * Private data of a ike_sa_init_responded_t object.
  43  *
  44  */
  45 struct private_ike_sa_init_responded_t {
  46         /**
  47          * Public interface of ike_sa_init_responded_t.
  48          */
  49         ike_sa_init_responded_t public;
  50
  51         /**
  52          * Assigned IKE_SA.
  53          */
  54         protected_ike_sa_t *ike_sa;
  55
  56         /**
  57          * Received nonce.
  58          */
  59         chunk_t received_nonce;
  60
  61         /**
  62          * Sent nonce.
  63          */
  64         chunk_t sent_nonce;
  65
  66         /**
  67          * Binary representation of the IKE_SA_INIT response.
  68          */
  69         chunk_t ike_sa_init_response_data;
  70
  71         /**
  72          * Binary representation of the IKE_SA_INIT request.
  73          */
  74         chunk_t ike_sa_init_request_data;
  75
  76         /**
  77          * SA config to use.
  78          */
  79         sa_config_t *sa_config;
  80
  81         /**
  82          * Assigned logger.
  83          *
  84          * Is logger of ike_sa!
  85          */
  86         logger_t *logger;
  87
  88         /**
  89          * Process received IDi and IDr payload and build IDr payload for IKE_AUTH response.
  90          *
  91          * @param this                  calling object
  92          * @param request_idi   ID payload representing initiator
  93          * @param request_idr   ID payload representing responder (May be zero)
  94          * @param response              The created IDr payload is added to this message_t object
  95          * @param response_idr  The created IDr payload is also written to this location
  96          */
  97         status_t (*build_idr_payload) (private_ike_sa_init_responded_t *this,
  98                                                                         id_payload_t *request_idi,
  99                                                                         id_payload_t *request_idr,
 100                                                                         message_t *response,
 101                                                                         id_payload_t **response_idr);
 102
 103         /**
 104          * Process received SA payload and build SA payload for IKE_AUTH response.
 105          *
 106          * @param this                  calling object
 107          * @param request               SA payload received in IKE_AUTH request
 108          * @param response              The created SA payload is added to this message_t object
 109          */
 110         status_t (*build_sa_payload) (private_ike_sa_init_responded_t *this, sa_payload_t *request, message_t *response);
 111
 112         /**
 113          * Process received AUTH payload and build AUTH payload for IKE_AUTH response.
 114          *
 115          * @param this                          calling object
 116          * @param request                       AUTH payload received in IKE_AUTH request
 117          * @param other_id_payload      other ID payload needed to verify AUTH data
 118          * @param my_id_payload         my ID payload needed to compute AUTH data
 119          * @param response                      The created AUTH payload is added to this message_t object
 120          */
 121         status_t (*build_auth_payload) (private_ike_sa_init_responded_t *this, auth_payload_t *request,id_payload_t *other_id_payload,id_payload_t *my_id_payload, message_t* response);
 122
 123         /**
 124          * Process received TS payload and build TS payload for IKE_AUTH response.
 125          *
 126          * @param this                  calling object
 127          * @param is_initiator  type of TS payload. TRUE for TSi, FALSE for TSr
 128          * @param request               TS payload received in IKE_AUTH request
 129          * @param response              the created TS payload is added to this message_t object
 130          */
 131         status_t (*build_ts_payload) (private_ike_sa_init_responded_t *this, bool ts_initiator, ts_payload_t *request, message_t *response);
 132
 133         /**
 134          * Sends a IKE_AUTH reply containing a notify payload.
 135          *
 136          * @param this          calling object
 137          * @param notify_payload payload to process
 138          * @return
 139          *                                      - DELETE_ME if IKE_SA should be deleted
 140          *                                      - SUCCSS if processed successfull
 141          */
 142         status_t (*process_notify_payload) (private_ike_sa_init_responded_t *this, notify_payload_t* notify_payload);
 143 };
 144
 145 /**
 146  * Implements state_t.get_state
 147  */
 148 static status_t process_message(private_ike_sa_init_responded_t *this, message_t *request)
 149 {
 150         id_payload_t *idi_request = NULL, *idr_request = NULL,*idr_response;
 151         ts_payload_t *tsi_request = NULL, *tsr_request = NULL;
 152         auth_payload_t *auth_request = NULL;
 153         sa_payload_t *sa_request = NULL;
 154         iterator_t *payloads;
 155         message_t *response;
 156         crypter_t *crypter;
 157         signer_t *signer;
 158         status_t status;
 159         host_t *my_host, *other_host;
 160
 161
 162         if (request->get_exchange_type(request) != IKE_AUTH)
 163         {
 164                 this->logger->log(this->logger, ERROR | LEVEL1, "Message of type %s not supported in state ike_sa_init_responded",
 165                                                         mapping_find(exchange_type_m,request->get_exchange_type(request)));
 166                 return FAILED;
 167         }
 168
 169         if (!request->get_request(request))
 170         {
 171                 this->logger->log(this->logger, ERROR | LEVEL1, "IKE_AUTH responses not allowed state ike_sa_init_responded");
 172                 return FAILED;
 173         }
 174
 175         /* get signer for verification and crypter for decryption */
 176         signer = this->ike_sa->get_signer_initiator(this->ike_sa);
 177         crypter = this->ike_sa->get_crypter_initiator(this->ike_sa);
 178
 179         status = request->parse_body(request, crypter, signer);
 180         if (status != SUCCESS)
 181         {
 182                 if (status == NOT_SUPPORTED)
 183                 {
 184                         this->logger->log(this->logger, ERROR | LEVEL1, "IKE_AUTH request contains unsupported payload with critical flag set."
 185                                                                                                                         "Deleting IKE_SA");
 186                         this->ike_sa->send_notify(this->ike_sa, IKE_AUTH, UNSUPPORTED_CRITICAL_PAYLOAD, CHUNK_INITIALIZER);
 187                         return DELETE_ME;
 188                 }
 189                 else
 190                 {
 191                         this->logger->log(this->logger, AUDIT, "IKE_AUTH request decryption faild. Ignoring message");
 192                 }
 193                 return status;
 194         }
 195
 196         /* iterate over incoming payloads. Message is verified, we can be sure there are the required payloads */
 197         payloads = request->get_payload_iterator(request);
 198         while (payloads->has_next(payloads))
 199         {
 200                 payload_t *payload;
 201                 payloads->current(payloads, (void**)&payload);
 202
 203                 switch (payload->get_type(payload))
 204                 {
 205                         case ID_INITIATOR:
 206                         {
 207                                 idi_request = (id_payload_t*)payload;
 208                                 break;
 209                         }
 210                         case AUTHENTICATION:
 211                         {
 212                                 auth_request = (auth_payload_t*)payload;
 213                                 break;
 214                         }
 215                         case ID_RESPONDER:
 216                         {
 217                                 idr_request = (id_payload_t*)payload;
 218                                 break;
 219                         }
 220                         case SECURITY_ASSOCIATION:
 221                         {
 222                                 sa_request = (sa_payload_t*)payload;
 223                                 break;
 224                         }
 225
 226                         case TRAFFIC_SELECTOR_INITIATOR:
 227                         {
 228                                 tsi_request = (ts_payload_t*)payload;
 229                                 break;
 230                         }
 231                         case TRAFFIC_SELECTOR_RESPONDER:
 232                         {
 233                                 tsr_request = (ts_payload_t*)payload;
 234                                 break;
 235                         }
 236                         case NOTIFY:
 237                         {
 238                                 notify_payload_t *notify_payload = (notify_payload_t *) payload;
 239                                 status = this->process_notify_payload(this, notify_payload);
 240                                 if (status != SUCCESS)
 241                                 {
 242                                         payloads->destroy(payloads);
 243                                         return status;
 244                                 }
 245                         }
 246                         case CERTIFICATE:
 247                         {
 248                                 /* TODO handle cert payloads */
 249                         }
 250                         case CERTIFICATE_REQUEST:
 251                         {
 252                                 /* TODO handle certrequest payloads */
 253                         }
 254                         default:
 255                         {
 256                                 this->logger->log(this->logger, ERROR|LEVEL1, "Ignoring payload %s (%d)",
 257                                                                         mapping_find(payload_type_m, payload->get_type(payload)), payload->get_type(payload));
 258                                 break;
 259                         }
 260                 }
 261         }
 262         /* iterator can be destroyed */
 263         payloads->destroy(payloads);
 264
 265         /* check if we have all payloads */
 266         if (!(idi_request && sa_request && auth_request && tsi_request && tsr_request))
 267         {
 268                 this->logger->log(this->logger, AUDIT, "IKE_AUTH reply did not contain all required payloads. Deleting IKE_SA");
 269                 return DELETE_ME;
 270         }
 271
 272         /* build response */
 273         this->ike_sa->build_message(this->ike_sa, IKE_AUTH, FALSE, &response);
 274
 275         /* add payloads to it */
 276         status = this->build_idr_payload(this, idi_request, idr_request, response,&idr_response);
 277         if (status != SUCCESS)
 278         {
 279                 response->destroy(response);
 280                 return status;
 281         }
 282         status = this->build_sa_payload(this, sa_request, response);
 283         if (status != SUCCESS)
 284         {
 285                 response->destroy(response);
 286                 return status;
 287         }
 288         status = this->build_auth_payload(this, auth_request,idi_request, idr_response,response);
 289         if (status != SUCCESS)
 290         {
 291                 response->destroy(response);
 292                 return status;
 293         }
 294         status = this->build_ts_payload(this, TRUE, tsi_request, response);
 295         if (status != SUCCESS)
 296         {
 297                 response->destroy(response);
 298                 return status;
 299         }
 300         status = this->build_ts_payload(this, FALSE, tsr_request, response);
 301         if (status != SUCCESS)
 302         {
 303                 response->destroy(response);
 304                 return status;
 305         }
 306
 307         status = this->ike_sa->send_response(this->ike_sa, response);
 308         /* message can now be sent (must not be destroyed) */
 309         if (status != SUCCESS)
 310         {
 311                 this->logger->log(this->logger, AUDIT, "Unable to send IKE_AUTH reply. Deleting IKE_SA");
 312                 response->destroy(response);
 313                 return DELETE_ME;
 314         }
 315
 316         /* create new state */my_host = this->ike_sa->get_my_host(this->ike_sa);
 317         other_host = this->ike_sa->get_other_host(this->ike_sa);
 318         this->logger->log(this->logger, AUDIT, "IKE_SA established between %s - %s, authenticated peer with %s",
 319                                                 my_host->get_address(my_host), other_host->get_address(other_host),
 320                                                 mapping_find(auth_method_m, auth_request->get_auth_method(auth_request)));
 321
 322         this->ike_sa->create_delete_established_ike_sa_job(this->ike_sa,this->sa_config->get_ike_sa_lifetime(this->sa_config));
 323         this->ike_sa->set_new_state(this->ike_sa, (state_t*)ike_sa_established_create(this->ike_sa));
 324         this->public.state_interface.destroy(&(this->public.state_interface));
 325
 326         return SUCCESS;
 327 }
 328
 329 /**
 330  * Implementation of private_ike_sa_init_responded_t.build_idr_payload.
 331  */
 332 static status_t build_idr_payload(private_ike_sa_init_responded_t *this, id_payload_t *request_idi, id_payload_t *request_idr, message_t *response,id_payload_t **response_idr)
 333 {
 334         identification_t *other_id, *my_id = NULL;
 335         init_config_t *init_config;
 336         status_t status;
 337         id_payload_t *idr_response;
 338
 339         other_id = request_idi->get_identification(request_idi);
 340         if (request_idr)
 341         {
 342                 my_id = request_idr->get_identification(request_idr);
 343         }
 344
 345         /* build new sa config */
 346         init_config = this->ike_sa->get_init_config(this->ike_sa);
 347         status = charon->configuration_manager->get_sa_config_for_init_config_and_id(charon->configuration_manager,init_config, other_id,my_id, &(this->sa_config));
 348         if (status != SUCCESS)
 349         {
 350                 if (my_id)
 351                 {
 352                         this->logger->log(this->logger, AUDIT, "IKE_AUTH request uses IDs %s to %s, which we have no config for",
 353                                                         other_id->get_string(other_id),my_id->get_string(my_id));
 354                         my_id->destroy(my_id);
 355                 }
 356                 else
 357                 {
 358                         this->logger->log(this->logger, AUDIT, "IKE_AUTH request uses ID %s, which we have no config for",
 359                                                         other_id->get_string(other_id));
 360                 }
 361                 other_id->destroy(other_id);
 362                 return DELETE_ME;
 363         }
 364
 365         if (my_id)
 366         {
 367                 my_id->destroy(my_id);
 368         }
 369         other_id->destroy(other_id);
 370
 371         /* get my id, if not requested */
 372         my_id = this->sa_config->get_my_id(this->sa_config);
 373
 374         /* set sa_config in ike_sa for other states */
 375         this->ike_sa->set_sa_config(this->ike_sa, this->sa_config);
 376
 377         /*  build response */
 378         idr_response = id_payload_create_from_identification(FALSE, my_id);
 379         response->add_payload(response, (payload_t*)idr_response);
 380         *response_idr = idr_response;
 381
 382         return SUCCESS;
 383 }
 384
 385 /**
 386  * Implementation of private_ike_sa_init_responded_t.build_sa_payload.
 387  */
 388 static status_t build_sa_payload(private_ike_sa_init_responded_t *this, sa_payload_t *request, message_t *response)
 389 {
 390         child_proposal_t *proposal, *proposal_tmp;
 391         linked_list_t *proposal_list;
 392         sa_payload_t *sa_response;
 393         child_sa_t *child_sa;
 394         prf_plus_t *prf_plus;
 395         chunk_t seed;
 396
 397         /* TODO: child sa stuff */
 398
 399         /* get proposals from request */
 400         proposal_list = request->get_child_proposals(request);
 401         if (proposal_list->get_count(proposal_list) == 0)
 402         {
 403                 /* if the other side did not offer any proposals, we do not create child sa's */
 404                 this->logger->log(this->logger, AUDIT, "IKE_AUH request did not contain any proposals. No CHILD_SA created");
 405                 sa_response = sa_payload_create();
 406                 response->add_payload(response, (payload_t*)sa_response);
 407                 proposal_list->destroy(proposal_list);
 408                 return SUCCESS;
 409         }
 410
 411         /* now select a proposal */
 412         this->logger->log(this->logger, CONTROL|LEVEL1, "Selecting proposals:");
 413         proposal = this->sa_config->select_proposal(this->sa_config, proposal_list);
 414         /* list is not needed anymore */
 415         while (proposal_list->remove_last(proposal_list, (void**)&proposal_tmp) == SUCCESS)
 416         {
 417                 proposal_tmp->destroy(proposal_tmp);
 418         }
 419         proposal_list->destroy(proposal_list);
 420         /* do we have a proposal */
 421         if (proposal == NULL)
 422         {
 423                 this->logger->log(this->logger, AUDIT, "IKE_AUTH request did not contain any proposals we accept. Deleting IKE_SA");
 424                 this->ike_sa->send_notify(this->ike_sa, IKE_AUTH, NO_PROPOSAL_CHOSEN, CHUNK_INITIALIZER);
 425                 return DELETE_ME;
 426         }
 427
 428         /* create payload with selected propsal */
 429         sa_response = sa_payload_create_from_child_proposal(proposal);
 430         response->add_payload(response, (payload_t*)sa_response);
 431
 432         /* install child SAs for AH and esp */
 433         seed = allocator_alloc_as_chunk(this->received_nonce.len + this->sent_nonce.len);
 434         memcpy(seed.ptr, this->received_nonce.ptr, this->received_nonce.len);
 435         memcpy(seed.ptr + this->received_nonce.len, this->sent_nonce.ptr, this->sent_nonce.len);
 436         prf_plus = prf_plus_create(this->ike_sa->get_child_prf(this->ike_sa), seed);
 437         allocator_free_chunk(&seed);
 438
 439         child_sa = child_sa_create(proposal, prf_plus);
 440         prf_plus->destroy(prf_plus);
 441         child_sa->destroy(child_sa);
 442
 443         proposal->destroy(proposal);
 444         return SUCCESS;
 445 }
 446
 447 /**
 448  * Implementation of private_ike_sa_init_responded_t.build_auth_payload.
 449  */
 450 static status_t build_auth_payload(private_ike_sa_init_responded_t *this, auth_payload_t *auth_request,id_payload_t *other_id_payload,id_payload_t *my_id_payload, message_t* response)
 451 {
 452         authenticator_t *authenticator;
 453         auth_payload_t *auth_reply;
 454         status_t status;
 455
 456         authenticator = authenticator_create(this->ike_sa);
 457
 458
 459         status =  authenticator->verify_auth_data(authenticator,auth_request, this->ike_sa_init_request_data,this->sent_nonce,other_id_payload,TRUE);
 460
 461         if (status != SUCCESS)
 462         {
 463                 this->logger->log(this->logger, AUDIT, "IKE_AUTH request verification failed. Deleting IKE_SA");
 464                 this->ike_sa->send_notify(this->ike_sa, IKE_AUTH, AUTHENTICATION_FAILED, CHUNK_INITIALIZER);
 465                 authenticator->destroy(authenticator);
 466                 return DELETE_ME;
 467         }
 468
 469
 470         status = authenticator->compute_auth_data(authenticator,&auth_reply, this->ike_sa_init_response_data,this->received_nonce,my_id_payload,FALSE);
 471         authenticator->destroy(authenticator);
 472         if (status != SUCCESS)
 473         {
 474                 this->logger->log(this->logger, AUDIT, "Unable to build authentication data for IKE_AUTH reply. Deleting IKE_SA");
 475                 return DELETE_ME;
 476
 477         }
 478
 479         response->add_payload(response, (payload_t *)auth_reply);
 480         return SUCCESS;
 481 }
 482
 483 /**
 484  * Implementation of private_ike_sa_init_responded_t.build_ts_payload.
 485  */
 486 static status_t build_ts_payload(private_ike_sa_init_responded_t *this, bool ts_initiator, ts_payload_t *request, message_t* response)
 487 {
 488         traffic_selector_t **ts_received, **ts_selected;
 489         size_t ts_received_count, ts_selected_count;
 490         status_t status = SUCCESS;
 491         ts_payload_t *ts_response;
 492
 493         /* build a reply payload with selected traffic selectors */
 494         ts_received_count = request->get_traffic_selectors(request, &ts_received);
 495         /* select ts depending on payload type */
 496         if (ts_initiator)
 497         {
 498                 ts_selected_count = this->sa_config->select_traffic_selectors_initiator(this->sa_config, ts_received, ts_received_count, &ts_selected);
 499         }
 500         else
 501         {
 502                 ts_selected_count = this->sa_config->select_traffic_selectors_responder(this->sa_config, ts_received, ts_received_count, &ts_selected);
 503         }
 504         if(ts_selected_count == 0)
 505         {
 506                 this->logger->log(this->logger, AUDIT, "IKE_AUH request did not contain any traffic selectors.");
 507                 ts_response = ts_payload_create(ts_initiator);
 508                 response->add_payload(response, (payload_t*)ts_response);
 509         }
 510         else
 511         {
 512                 ts_response = ts_payload_create_from_traffic_selectors(ts_initiator, ts_selected, ts_selected_count);
 513                 response->add_payload(response, (payload_t*)ts_response);
 514         }
 515
 516         /* cleanup */
 517         while(ts_received_count--)
 518         {
 519                 traffic_selector_t *ts = *ts_received + ts_received_count;
 520                 ts->destroy(ts);
 521         }
 522         allocator_free(ts_received);
 523         while(ts_selected_count--)
 524         {
 525                 traffic_selector_t *ts = *ts_selected + ts_selected_count;
 526                 ts->destroy(ts);
 527         }
 528         allocator_free(ts_selected);
 529         return status;
 530 }
 531
 532 static status_t process_notify_payload(private_ike_sa_init_responded_t *this, notify_payload_t *notify_payload)
 533 {
 534         notify_message_type_t notify_message_type = notify_payload->get_notify_message_type(notify_payload);
 535
 536         this->logger->log(this->logger, CONTROL|LEVEL1, "Process notify type %s for protocol %s",
 537                                           mapping_find(notify_message_type_m, notify_message_type),
 538                                           mapping_find(protocol_id_m, notify_payload->get_protocol_id(notify_payload)));
 539
 540         switch (notify_message_type)
 541         {
 542                 case SET_WINDOW_SIZE:
 543                 /*
 544                  * TODO Increase window size.
 545                  */
 546                 case INITIAL_CONTACT:
 547                 /*
 548                  * TODO Delete existing IKE_SA's with other Identity.
 549                  */
 550                 default:
 551                 {
 552                         this->logger->log(this->logger, AUDIT, "IKE_AUTH request contained an unknown notify (%d), ignored.", notify_message_type);
 553                 }
 554         }
 555
 556         return SUCCESS;
 557 }
 558
 559 /**
 560  * Implementation of state_t.get_state.
 561  */
 562 static ike_sa_state_t get_state(private_ike_sa_init_responded_t *this)
 563 {
 564         return IKE_SA_INIT_RESPONDED;
 565 }
 566
 567 /**
 568  * Implementation of state_t.get_state.
 569  */
 570 static void destroy(private_ike_sa_init_responded_t *this)
 571 {
 572         this->logger->log(this->logger, CONTROL | LEVEL3, "Going to destroy ike_sa_init_responded_t state object");
 573
 574         this->logger->log(this->logger, CONTROL | LEVEL3, "Destroy received nonce");
 575         allocator_free_chunk(&(this->received_nonce));
 576         this->logger->log(this->logger, CONTROL | LEVEL3, "Destroy sent nonce");
 577         allocator_free_chunk(&(this->sent_nonce));
 578         this->logger->log(this->logger, CONTROL | LEVEL3, "Destroy IKE_SA_INIT response octets");
 579         allocator_free_chunk(&(this->ike_sa_init_response_data));
 580         this->logger->log(this->logger, CONTROL | LEVEL3, "Destroy IKE_SA_INIT request octets");
 581         allocator_free_chunk(&(this->ike_sa_init_request_data));
 582
 583         allocator_free(this);
 584 }
 585
 586 /*
 587  * Described in header.
 588  */
 589 ike_sa_init_responded_t *ike_sa_init_responded_create(protected_ike_sa_t *ike_sa, chunk_t received_nonce, chunk_t sent_nonce,chunk_t ike_sa_init_request_data, chunk_t ike_sa_init_response_data)
 590 {
 591         private_ike_sa_init_responded_t *this = allocator_alloc_thing(private_ike_sa_init_responded_t);
 592
 593         /* interface functions */
 594         this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *)) process_message;
 595         this->public.state_interface.get_state = (ike_sa_state_t (*) (state_t *)) get_state;
 596         this->public.state_interface.destroy  = (void (*) (state_t *)) destroy;
 597
 598         /* private functions */
 599         this->build_idr_payload = build_idr_payload;
 600         this->build_sa_payload = build_sa_payload;
 601         this->build_auth_payload = build_auth_payload;
 602         this->build_ts_payload = build_ts_payload;
 603         this->process_notify_payload = process_notify_payload;
 604
 605         /* private data */
 606         this->ike_sa = ike_sa;
 607         this->received_nonce = received_nonce;
 608         this->sent_nonce = sent_nonce;
 609         this->ike_sa_init_response_data = ike_sa_init_response_data;
 610         this->ike_sa_init_request_data = ike_sa_init_request_data;
 611         this->logger = this->ike_sa->get_logger(this->ike_sa);
 612
 613         return &(this->public);
 614 }