2140 lines
56 KiB
C
2140 lines
56 KiB
C
/*
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* Copyright (C) 2006-2008 Tobias Brunner
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* Copyright (C) 2006 Daniel Roethlisberger
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* Copyright (C) 2005-2009 Martin Willi
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* Copyright (C) 2005 Jan Hutter
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <sys/time.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <time.h>
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#include "ike_sa.h"
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#include <library.h>
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#include <daemon.h>
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#include <utils/linked_list.h>
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#include <utils/lexparser.h>
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#include <sa/task_manager.h>
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#include <sa/tasks/ike_init.h>
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#include <sa/tasks/ike_natd.h>
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#include <sa/tasks/ike_mobike.h>
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#include <sa/tasks/ike_auth.h>
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#include <sa/tasks/ike_auth_lifetime.h>
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#include <sa/tasks/ike_config.h>
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#include <sa/tasks/ike_cert_pre.h>
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#include <sa/tasks/ike_cert_post.h>
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#include <sa/tasks/ike_rekey.h>
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#include <sa/tasks/ike_reauth.h>
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#include <sa/tasks/ike_delete.h>
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#include <sa/tasks/ike_dpd.h>
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#include <sa/tasks/child_create.h>
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#include <sa/tasks/child_delete.h>
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#include <sa/tasks/child_rekey.h>
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#include <processing/jobs/retransmit_job.h>
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#include <processing/jobs/delete_ike_sa_job.h>
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#include <processing/jobs/send_dpd_job.h>
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#include <processing/jobs/send_keepalive_job.h>
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#include <processing/jobs/rekey_ike_sa_job.h>
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#ifdef ME
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#include <sa/tasks/ike_me.h>
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#include <processing/jobs/initiate_mediation_job.h>
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#endif
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ENUM(ike_sa_state_names, IKE_CREATED, IKE_DESTROYING,
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"CREATED",
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"CONNECTING",
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"ESTABLISHED",
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"PASSIVE",
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"REKEYING",
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"DELETING",
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"DESTROYING",
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);
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typedef struct private_ike_sa_t private_ike_sa_t;
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typedef struct attribute_entry_t attribute_entry_t;
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/**
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* Private data of an ike_sa_t object.
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*/
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struct private_ike_sa_t {
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/**
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* Public members
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*/
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ike_sa_t public;
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/**
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* Identifier for the current IKE_SA.
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*/
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ike_sa_id_t *ike_sa_id;
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/**
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* unique numerical ID for this IKE_SA.
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*/
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u_int32_t unique_id;
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/**
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* Current state of the IKE_SA
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*/
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ike_sa_state_t state;
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/**
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* IKE configuration used to set up this IKE_SA
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*/
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ike_cfg_t *ike_cfg;
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/**
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* Peer and authentication information to establish IKE_SA.
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*/
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peer_cfg_t *peer_cfg;
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/**
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* currently used authentication ruleset, local (as auth_cfg_t)
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*/
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auth_cfg_t *my_auth;
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/**
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* currently used authentication constraints, remote (as auth_cfg_t)
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*/
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auth_cfg_t *other_auth;
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/**
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* Selected IKE proposal
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*/
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proposal_t *proposal;
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/**
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* Juggles tasks to process messages
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*/
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task_manager_t *task_manager;
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/**
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* Address of local host
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*/
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host_t *my_host;
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/**
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* Address of remote host
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*/
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host_t *other_host;
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#ifdef ME
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/**
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* Are we mediation server
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*/
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bool is_mediation_server;
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/**
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* Server reflexive host
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*/
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host_t *server_reflexive_host;
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/**
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* Connect ID
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*/
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chunk_t connect_id;
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#endif /* ME */
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/**
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* Identification used for us
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*/
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identification_t *my_id;
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/**
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* Identification used for other
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*/
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identification_t *other_id;
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/**
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* EAP Identity exchange in EAP-Identity method
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*/
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identification_t *eap_identity;;
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/**
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* set of extensions the peer supports
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*/
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ike_extension_t extensions;
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/**
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* set of condition flags currently enabled for this IKE_SA
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*/
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ike_condition_t conditions;
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/**
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* Linked List containing the child sa's of the current IKE_SA.
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*/
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linked_list_t *child_sas;
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/**
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* keymat of this IKE_SA
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*/
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keymat_t *keymat;
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/**
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* Virtual IP on local host, if any
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*/
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host_t *my_virtual_ip;
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/**
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* Virtual IP on remote host, if any
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*/
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host_t *other_virtual_ip;
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/**
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* List of configuration attributes (attribute_entry_t)
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*/
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linked_list_t *attributes;
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/**
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* list of peers additional addresses, transmitted via MOBIKE
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*/
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linked_list_t *additional_addresses;
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/**
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* previously value of received DESTINATION_IP hash
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*/
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chunk_t nat_detection_dest;
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/**
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* number pending UPDATE_SA_ADDRESS (MOBIKE)
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*/
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u_int32_t pending_updates;
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/**
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* NAT keep alive interval
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*/
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u_int32_t keepalive_interval;
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/**
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* Timestamps for this IKE_SA
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*/
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u_int32_t stats[STAT_MAX];
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/**
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* how many times we have retried so far (keyingtries)
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*/
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u_int32_t keyingtry;
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/**
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* local host address to be used for IKE, set via MIGRATE kernel message
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*/
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host_t *local_host;
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/**
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* remote host address to be used for IKE, set via MIGRATE kernel message
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*/
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host_t *remote_host;
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};
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/**
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* Entry to maintain install configuration attributes during IKE_SA lifetime
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*/
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struct attribute_entry_t {
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/** handler used to install this attribute */
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attribute_handler_t *handler;
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/** attribute type */
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configuration_attribute_type_t type;
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/** attribute data */
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chunk_t data;
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};
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/**
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* get the time of the latest traffic processed by the kernel
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*/
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static time_t get_use_time(private_ike_sa_t* this, bool inbound)
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{
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enumerator_t *enumerator;
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child_sa_t *child_sa;
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time_t use_time;
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if (inbound)
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{
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use_time = this->stats[STAT_INBOUND];
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}
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else
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{
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use_time = this->stats[STAT_OUTBOUND];
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}
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enumerator = this->child_sas->create_enumerator(this->child_sas);
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while (enumerator->enumerate(enumerator, &child_sa))
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{
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use_time = max(use_time, child_sa->get_usetime(child_sa, inbound));
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}
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enumerator->destroy(enumerator);
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return use_time;
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}
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/**
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* Implementation of ike_sa_t.get_unique_id
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*/
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static u_int32_t get_unique_id(private_ike_sa_t *this)
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{
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return this->unique_id;
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}
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/**
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* Implementation of ike_sa_t.get_name.
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*/
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static char *get_name(private_ike_sa_t *this)
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{
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if (this->peer_cfg)
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{
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return this->peer_cfg->get_name(this->peer_cfg);
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}
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return "(unnamed)";
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}
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/**
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* Implementation of ike_sa_t.get_statistic.
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*/
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static u_int32_t get_statistic(private_ike_sa_t *this, statistic_t kind)
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{
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if (kind < STAT_MAX)
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{
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return this->stats[kind];
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}
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return 0;
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}
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/**
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* Implementation of ike_sa_t.get_my_host.
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*/
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static host_t *get_my_host(private_ike_sa_t *this)
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{
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return this->my_host;
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}
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/**
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* Implementation of ike_sa_t.set_my_host.
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*/
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static void set_my_host(private_ike_sa_t *this, host_t *me)
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{
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DESTROY_IF(this->my_host);
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this->my_host = me;
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}
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/**
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* Implementation of ike_sa_t.get_other_host.
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*/
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static host_t *get_other_host(private_ike_sa_t *this)
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{
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return this->other_host;
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}
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/**
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* Implementation of ike_sa_t.set_other_host.
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*/
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static void set_other_host(private_ike_sa_t *this, host_t *other)
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{
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DESTROY_IF(this->other_host);
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this->other_host = other;
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}
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/**
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* Implementation of ike_sa_t.get_peer_cfg
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*/
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static peer_cfg_t* get_peer_cfg(private_ike_sa_t *this)
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{
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return this->peer_cfg;
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}
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/**
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* Implementation of ike_sa_t.set_peer_cfg
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*/
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static void set_peer_cfg(private_ike_sa_t *this, peer_cfg_t *peer_cfg)
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{
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DESTROY_IF(this->peer_cfg);
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peer_cfg->get_ref(peer_cfg);
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this->peer_cfg = peer_cfg;
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if (this->ike_cfg == NULL)
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{
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this->ike_cfg = peer_cfg->get_ike_cfg(peer_cfg);
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this->ike_cfg->get_ref(this->ike_cfg);
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}
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}
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/**
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* Implementation of ike_sa_t.get_auth_cfg
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*/
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static auth_cfg_t* get_auth_cfg(private_ike_sa_t *this, bool local)
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{
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if (local)
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{
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return this->my_auth;
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}
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return this->other_auth;
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}
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/**
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* Implementation of ike_sa_t.get_proposal
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*/
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static proposal_t* get_proposal(private_ike_sa_t *this)
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{
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return this->proposal;
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}
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/**
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* Implementation of ike_sa_t.set_proposal
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*/
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static void set_proposal(private_ike_sa_t *this, proposal_t *proposal)
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{
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DESTROY_IF(this->proposal);
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this->proposal = proposal->clone(proposal);
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}
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/**
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* Implementation of ike_sa_t.set_message_id
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*/
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static void set_message_id(private_ike_sa_t *this, bool initiate, u_int32_t mid)
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{
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if (initiate)
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{
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this->task_manager->reset(this->task_manager, mid, UINT_MAX);
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}
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else
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{
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this->task_manager->reset(this->task_manager, UINT_MAX, mid);
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}
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}
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/**
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* Implementation of ike_sa_t.send_keepalive
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*/
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static void send_keepalive(private_ike_sa_t *this)
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{
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send_keepalive_job_t *job;
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time_t last_out, now, diff;
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if (!(this->conditions & COND_NAT_HERE) || this->keepalive_interval == 0)
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{ /* disable keep alives if we are not NATed anymore */
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return;
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}
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last_out = get_use_time(this, FALSE);
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now = time(NULL);
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diff = now - last_out;
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if (diff >= this->keepalive_interval)
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{
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packet_t *packet;
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chunk_t data;
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packet = packet_create();
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packet->set_source(packet, this->my_host->clone(this->my_host));
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packet->set_destination(packet, this->other_host->clone(this->other_host));
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data.ptr = malloc(1);
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data.ptr[0] = 0xFF;
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data.len = 1;
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packet->set_data(packet, data);
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DBG1(DBG_IKE, "sending keep alive");
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charon->sender->send(charon->sender, packet);
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diff = 0;
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}
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job = send_keepalive_job_create(this->ike_sa_id);
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charon->scheduler->schedule_job(charon->scheduler, (job_t*)job,
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this->keepalive_interval - diff);
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}
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/**
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* Implementation of ike_sa_t.get_ike_cfg
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*/
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static ike_cfg_t *get_ike_cfg(private_ike_sa_t *this)
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{
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return this->ike_cfg;
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}
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/**
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* Implementation of ike_sa_t.set_ike_cfg
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*/
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static void set_ike_cfg(private_ike_sa_t *this, ike_cfg_t *ike_cfg)
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{
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ike_cfg->get_ref(ike_cfg);
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this->ike_cfg = ike_cfg;
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}
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/**
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* Implementation of ike_sa_t.enable_extension.
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*/
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static void enable_extension(private_ike_sa_t *this, ike_extension_t extension)
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{
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this->extensions |= extension;
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}
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/**
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* Implementation of ike_sa_t.has_extension.
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*/
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static bool supports_extension(private_ike_sa_t *this, ike_extension_t extension)
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{
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return (this->extensions & extension) != FALSE;
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}
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/**
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* Implementation of ike_sa_t.has_condition.
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*/
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static bool has_condition(private_ike_sa_t *this, ike_condition_t condition)
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{
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return (this->conditions & condition) != FALSE;
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}
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/**
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* Implementation of ike_sa_t.enable_condition.
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*/
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static void set_condition(private_ike_sa_t *this, ike_condition_t condition,
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bool enable)
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{
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if (has_condition(this, condition) != enable)
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{
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if (enable)
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{
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this->conditions |= condition;
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switch (condition)
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{
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case COND_NAT_HERE:
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DBG1(DBG_IKE, "local host is behind NAT, sending keep alives");
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this->conditions |= COND_NAT_ANY;
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send_keepalive(this);
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break;
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case COND_NAT_THERE:
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DBG1(DBG_IKE, "remote host is behind NAT");
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this->conditions |= COND_NAT_ANY;
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break;
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case COND_NAT_FAKE:
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DBG1(DBG_IKE, "faking NAT situation to enforce UDP encapsulation");
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this->conditions |= COND_NAT_ANY;
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break;
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default:
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break;
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}
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}
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else
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{
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this->conditions &= ~condition;
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switch (condition)
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{
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case COND_NAT_HERE:
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case COND_NAT_FAKE:
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case COND_NAT_THERE:
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set_condition(this, COND_NAT_ANY,
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has_condition(this, COND_NAT_HERE) ||
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has_condition(this, COND_NAT_THERE) ||
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has_condition(this, COND_NAT_FAKE));
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break;
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default:
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break;
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}
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}
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}
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}
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/**
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* Implementation of ike_sa_t.send_dpd
|
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*/
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static status_t send_dpd(private_ike_sa_t *this)
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{
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job_t *job;
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time_t diff, delay;
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delay = this->peer_cfg->get_dpd(this->peer_cfg);
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if (delay == 0)
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{
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/* DPD disabled */
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return SUCCESS;
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}
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|
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if (this->task_manager->busy(this->task_manager))
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{
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/* an exchange is in the air, no need to start a DPD check */
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diff = 0;
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}
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else
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{
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/* check if there was any inbound traffic */
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time_t last_in, now;
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last_in = get_use_time(this, TRUE);
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now = time(NULL);
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diff = now - last_in;
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if (diff >= delay)
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{
|
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/* to long ago, initiate dead peer detection */
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task_t *task;
|
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ike_mobike_t *mobike;
|
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|
|
if (supports_extension(this, EXT_MOBIKE) &&
|
|
has_condition(this, COND_NAT_HERE))
|
|
{
|
|
/* use mobike enabled DPD to detect NAT mapping changes */
|
|
mobike = ike_mobike_create(&this->public, TRUE);
|
|
mobike->dpd(mobike);
|
|
task = &mobike->task;
|
|
}
|
|
else
|
|
{
|
|
task = (task_t*)ike_dpd_create(TRUE);
|
|
}
|
|
diff = 0;
|
|
DBG1(DBG_IKE, "sending DPD request");
|
|
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
this->task_manager->initiate(this->task_manager);
|
|
}
|
|
}
|
|
/* recheck in "interval" seconds */
|
|
job = (job_t*)send_dpd_job_create(this->ike_sa_id);
|
|
charon->scheduler->schedule_job(charon->scheduler, job, delay - diff);
|
|
return SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_state.
|
|
*/
|
|
static ike_sa_state_t get_state(private_ike_sa_t *this)
|
|
{
|
|
return this->state;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_state.
|
|
*/
|
|
static void set_state(private_ike_sa_t *this, ike_sa_state_t state)
|
|
{
|
|
DBG2(DBG_IKE, "IKE_SA %s[%d] state change: %N => %N",
|
|
get_name(this), this->unique_id,
|
|
ike_sa_state_names, this->state,
|
|
ike_sa_state_names, state);
|
|
|
|
switch (state)
|
|
{
|
|
case IKE_ESTABLISHED:
|
|
{
|
|
if (this->state == IKE_CONNECTING ||
|
|
this->state == IKE_PASSIVE)
|
|
{
|
|
job_t *job;
|
|
u_int32_t t;
|
|
|
|
/* calculate rekey, reauth and lifetime */
|
|
this->stats[STAT_ESTABLISHED] = time(NULL);
|
|
|
|
/* schedule rekeying if we have a time which is smaller than
|
|
* an already scheduled rekeying */
|
|
t = this->peer_cfg->get_rekey_time(this->peer_cfg);
|
|
if (t && (this->stats[STAT_REKEY] == 0 ||
|
|
(this->stats[STAT_REKEY] > t + this->stats[STAT_ESTABLISHED])))
|
|
{
|
|
this->stats[STAT_REKEY] = t + this->stats[STAT_ESTABLISHED];
|
|
job = (job_t*)rekey_ike_sa_job_create(this->ike_sa_id, FALSE);
|
|
charon->scheduler->schedule_job(charon->scheduler, job, t);
|
|
DBG1(DBG_IKE, "scheduling rekeying in %ds", t);
|
|
}
|
|
t = this->peer_cfg->get_reauth_time(this->peer_cfg);
|
|
if (t && (this->stats[STAT_REAUTH] == 0 ||
|
|
(this->stats[STAT_REAUTH] > t + this->stats[STAT_ESTABLISHED])))
|
|
{
|
|
this->stats[STAT_REAUTH] = t + this->stats[STAT_ESTABLISHED];
|
|
job = (job_t*)rekey_ike_sa_job_create(this->ike_sa_id, TRUE);
|
|
charon->scheduler->schedule_job(charon->scheduler, job, t);
|
|
DBG1(DBG_IKE, "scheduling reauthentication in %ds", t);
|
|
}
|
|
t = this->peer_cfg->get_over_time(this->peer_cfg);
|
|
if (this->stats[STAT_REKEY] || this->stats[STAT_REAUTH])
|
|
{
|
|
if (this->stats[STAT_REAUTH] == 0)
|
|
{
|
|
this->stats[STAT_DELETE] = this->stats[STAT_REKEY];
|
|
}
|
|
else if (this->stats[STAT_REKEY] == 0)
|
|
{
|
|
this->stats[STAT_DELETE] = this->stats[STAT_REAUTH];
|
|
}
|
|
else
|
|
{
|
|
this->stats[STAT_DELETE] = min(this->stats[STAT_REKEY],
|
|
this->stats[STAT_REAUTH]);
|
|
}
|
|
this->stats[STAT_DELETE] += t;
|
|
t = this->stats[STAT_DELETE] - this->stats[STAT_ESTABLISHED];
|
|
job = (job_t*)delete_ike_sa_job_create(this->ike_sa_id, TRUE);
|
|
charon->scheduler->schedule_job(charon->scheduler, job, t);
|
|
DBG1(DBG_IKE, "maximum IKE_SA lifetime %ds", t);
|
|
}
|
|
|
|
/* start DPD checks */
|
|
send_dpd(this);
|
|
}
|
|
break;
|
|
}
|
|
case IKE_DELETING:
|
|
{
|
|
/* delete may fail if a packet gets lost, so set a timeout */
|
|
job_t *job = (job_t*)delete_ike_sa_job_create(this->ike_sa_id, TRUE);
|
|
charon->scheduler->schedule_job(charon->scheduler, job,
|
|
HALF_OPEN_IKE_SA_TIMEOUT);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
charon->bus->ike_state_change(charon->bus, &this->public, state);
|
|
this->state = state;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.reset
|
|
*/
|
|
static void reset(private_ike_sa_t *this)
|
|
{
|
|
/* the responder ID is reset, as peer may choose another one */
|
|
if (this->ike_sa_id->is_initiator(this->ike_sa_id))
|
|
{
|
|
this->ike_sa_id->set_responder_spi(this->ike_sa_id, 0);
|
|
}
|
|
|
|
set_state(this, IKE_CREATED);
|
|
|
|
this->task_manager->reset(this->task_manager, 0, 0);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_keymat
|
|
*/
|
|
static keymat_t* get_keymat(private_ike_sa_t *this)
|
|
{
|
|
return this->keymat;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_virtual_ip
|
|
*/
|
|
static void set_virtual_ip(private_ike_sa_t *this, bool local, host_t *ip)
|
|
{
|
|
if (local)
|
|
{
|
|
DBG1(DBG_IKE, "installing new virtual IP %H", ip);
|
|
if (charon->kernel_interface->add_ip(charon->kernel_interface, ip,
|
|
this->my_host) == SUCCESS)
|
|
{
|
|
if (this->my_virtual_ip)
|
|
{
|
|
DBG1(DBG_IKE, "removing old virtual IP %H", this->my_virtual_ip);
|
|
charon->kernel_interface->del_ip(charon->kernel_interface,
|
|
this->my_virtual_ip);
|
|
}
|
|
DESTROY_IF(this->my_virtual_ip);
|
|
this->my_virtual_ip = ip->clone(ip);
|
|
}
|
|
else
|
|
{
|
|
DBG1(DBG_IKE, "installing virtual IP %H failed", ip);
|
|
this->my_virtual_ip = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DESTROY_IF(this->other_virtual_ip);
|
|
this->other_virtual_ip = ip->clone(ip);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_virtual_ip
|
|
*/
|
|
static host_t* get_virtual_ip(private_ike_sa_t *this, bool local)
|
|
{
|
|
if (local)
|
|
{
|
|
return this->my_virtual_ip;
|
|
}
|
|
else
|
|
{
|
|
return this->other_virtual_ip;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.add_additional_address.
|
|
*/
|
|
static void add_additional_address(private_ike_sa_t *this, host_t *host)
|
|
{
|
|
this->additional_addresses->insert_last(this->additional_addresses, host);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.create_additional_address_iterator.
|
|
*/
|
|
static iterator_t* create_additional_address_iterator(private_ike_sa_t *this)
|
|
{
|
|
return this->additional_addresses->create_iterator(
|
|
this->additional_addresses, TRUE);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.has_mapping_changed
|
|
*/
|
|
static bool has_mapping_changed(private_ike_sa_t *this, chunk_t hash)
|
|
{
|
|
if (this->nat_detection_dest.ptr == NULL)
|
|
{
|
|
this->nat_detection_dest = chunk_clone(hash);
|
|
return FALSE;
|
|
}
|
|
if (chunk_equals(hash, this->nat_detection_dest))
|
|
{
|
|
return FALSE;
|
|
}
|
|
free(this->nat_detection_dest.ptr);
|
|
this->nat_detection_dest = chunk_clone(hash);
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_pending_updates.
|
|
*/
|
|
static void set_pending_updates(private_ike_sa_t *this, u_int32_t updates)
|
|
{
|
|
this->pending_updates = updates;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_pending_updates.
|
|
*/
|
|
static u_int32_t get_pending_updates(private_ike_sa_t *this)
|
|
{
|
|
return this->pending_updates;
|
|
}
|
|
|
|
/**
|
|
* Update hosts, as addresses may change (NAT)
|
|
*/
|
|
static void update_hosts(private_ike_sa_t *this, host_t *me, host_t *other)
|
|
{
|
|
bool update = FALSE;
|
|
|
|
if (me == NULL)
|
|
{
|
|
me = this->my_host;
|
|
}
|
|
if (other == NULL)
|
|
{
|
|
other = this->other_host;
|
|
}
|
|
|
|
/* apply hosts on first received message */
|
|
if (this->my_host->is_anyaddr(this->my_host) ||
|
|
this->other_host->is_anyaddr(this->other_host))
|
|
{
|
|
set_my_host(this, me->clone(me));
|
|
set_other_host(this, other->clone(other));
|
|
update = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* update our address in any case */
|
|
if (!me->equals(me, this->my_host))
|
|
{
|
|
set_my_host(this, me->clone(me));
|
|
update = TRUE;
|
|
}
|
|
|
|
if (!other->equals(other, this->other_host))
|
|
{
|
|
/* update others adress if we are NOT NATed,
|
|
* and allow port changes if we are NATed */
|
|
if (!has_condition(this, COND_NAT_HERE) ||
|
|
other->ip_equals(other, this->other_host))
|
|
{
|
|
set_other_host(this, other->clone(other));
|
|
update = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* update all associated CHILD_SAs, if required */
|
|
if (update)
|
|
{
|
|
iterator_t *iterator;
|
|
child_sa_t *child_sa;
|
|
|
|
iterator = this->child_sas->create_iterator(this->child_sas, TRUE);
|
|
while (iterator->iterate(iterator, (void**)&child_sa))
|
|
{
|
|
if (child_sa->update(child_sa, this->my_host,
|
|
this->other_host, this->my_virtual_ip,
|
|
has_condition(this, COND_NAT_ANY)) == NOT_SUPPORTED)
|
|
{
|
|
this->public.rekey_child_sa(&this->public,
|
|
child_sa->get_protocol(child_sa),
|
|
child_sa->get_spi(child_sa, TRUE));
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.generate
|
|
*/
|
|
static status_t generate_message(private_ike_sa_t *this, message_t *message,
|
|
packet_t **packet)
|
|
{
|
|
this->stats[STAT_OUTBOUND] = time(NULL);
|
|
message->set_ike_sa_id(message, this->ike_sa_id);
|
|
return message->generate(message,
|
|
this->keymat->get_crypter(this->keymat, FALSE),
|
|
this->keymat->get_signer(this->keymat, FALSE), packet);
|
|
}
|
|
|
|
/**
|
|
* send a notify back to the sender
|
|
*/
|
|
static void send_notify_response(private_ike_sa_t *this, message_t *request,
|
|
notify_type_t type)
|
|
{
|
|
message_t *response;
|
|
packet_t *packet;
|
|
|
|
response = message_create();
|
|
response->set_exchange_type(response, request->get_exchange_type(request));
|
|
response->set_request(response, FALSE);
|
|
response->set_message_id(response, request->get_message_id(request));
|
|
response->add_notify(response, FALSE, type, chunk_empty);
|
|
if (this->my_host->is_anyaddr(this->my_host))
|
|
{
|
|
this->my_host->destroy(this->my_host);
|
|
this->my_host = request->get_destination(request);
|
|
this->my_host = this->my_host->clone(this->my_host);
|
|
}
|
|
if (this->other_host->is_anyaddr(this->other_host))
|
|
{
|
|
this->other_host->destroy(this->other_host);
|
|
this->other_host = request->get_source(request);
|
|
this->other_host = this->other_host->clone(this->other_host);
|
|
}
|
|
response->set_source(response, this->my_host->clone(this->my_host));
|
|
response->set_destination(response, this->other_host->clone(this->other_host));
|
|
if (generate_message(this, response, &packet) == SUCCESS)
|
|
{
|
|
charon->sender->send(charon->sender, packet);
|
|
}
|
|
response->destroy(response);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_kmaddress.
|
|
*/
|
|
static void set_kmaddress(private_ike_sa_t *this, host_t *local, host_t *remote)
|
|
{
|
|
DESTROY_IF(this->local_host);
|
|
DESTROY_IF(this->remote_host);
|
|
this->local_host = local->clone(local);
|
|
this->remote_host = remote->clone(remote);
|
|
}
|
|
|
|
#ifdef ME
|
|
/**
|
|
* Implementation of ike_sa_t.act_as_mediation_server.
|
|
*/
|
|
static void act_as_mediation_server(private_ike_sa_t *this)
|
|
{
|
|
charon->mediation_manager->update_sa_id(charon->mediation_manager,
|
|
this->other_id, this->ike_sa_id);
|
|
this->is_mediation_server = TRUE;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_server_reflexive_host.
|
|
*/
|
|
static host_t *get_server_reflexive_host(private_ike_sa_t *this)
|
|
{
|
|
return this->server_reflexive_host;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_server_reflexive_host.
|
|
*/
|
|
static void set_server_reflexive_host(private_ike_sa_t *this, host_t *host)
|
|
{
|
|
DESTROY_IF(this->server_reflexive_host);
|
|
this->server_reflexive_host = host;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_connect_id.
|
|
*/
|
|
static chunk_t get_connect_id(private_ike_sa_t *this)
|
|
{
|
|
return this->connect_id;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.respond
|
|
*/
|
|
static status_t respond(private_ike_sa_t *this, identification_t *peer_id,
|
|
chunk_t connect_id)
|
|
{
|
|
ike_me_t *task = ike_me_create(&this->public, TRUE);
|
|
task->respond(task, peer_id, connect_id);
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.callback
|
|
*/
|
|
static status_t callback(private_ike_sa_t *this, identification_t *peer_id)
|
|
{
|
|
ike_me_t *task = ike_me_create(&this->public, TRUE);
|
|
task->callback(task, peer_id);
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.relay
|
|
*/
|
|
static status_t relay(private_ike_sa_t *this, identification_t *requester,
|
|
chunk_t connect_id, chunk_t connect_key, linked_list_t *endpoints, bool response)
|
|
{
|
|
ike_me_t *task = ike_me_create(&this->public, TRUE);
|
|
task->relay(task, requester, connect_id, connect_key, endpoints, response);
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.initiate_mediation
|
|
*/
|
|
static status_t initiate_mediation(private_ike_sa_t *this, peer_cfg_t *mediated_cfg)
|
|
{
|
|
ike_me_t *task = ike_me_create(&this->public, TRUE);
|
|
task->connect(task, mediated_cfg->get_peer_id(mediated_cfg));
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.initiate_mediated
|
|
*/
|
|
static status_t initiate_mediated(private_ike_sa_t *this, host_t *me, host_t *other,
|
|
chunk_t connect_id)
|
|
{
|
|
set_my_host(this, me->clone(me));
|
|
set_other_host(this, other->clone(other));
|
|
chunk_free(&this->connect_id);
|
|
this->connect_id = chunk_clone(connect_id);
|
|
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
#endif /* ME */
|
|
|
|
/**
|
|
* Resolve DNS host in configuration
|
|
*/
|
|
static void resolve_hosts(private_ike_sa_t *this)
|
|
{
|
|
host_t *host;
|
|
|
|
if (this->remote_host)
|
|
{
|
|
host = this->remote_host->clone(this->remote_host);
|
|
host->set_port(host, IKEV2_UDP_PORT);
|
|
}
|
|
else
|
|
{
|
|
host = host_create_from_dns(this->ike_cfg->get_other_addr(this->ike_cfg),
|
|
0, IKEV2_UDP_PORT);
|
|
}
|
|
if (host)
|
|
{
|
|
set_other_host(this, host);
|
|
}
|
|
|
|
if (this->local_host)
|
|
{
|
|
host = this->local_host->clone(this->local_host);
|
|
host->set_port(host, IKEV2_UDP_PORT);
|
|
}
|
|
else
|
|
{
|
|
host = host_create_from_dns(this->ike_cfg->get_my_addr(this->ike_cfg),
|
|
this->my_host->get_family(this->my_host),
|
|
IKEV2_UDP_PORT);
|
|
|
|
if (host && host->is_anyaddr(host) &&
|
|
!this->other_host->is_anyaddr(this->other_host))
|
|
{
|
|
host->destroy(host);
|
|
host = charon->kernel_interface->get_source_addr(
|
|
charon->kernel_interface, this->other_host, NULL);
|
|
if (host)
|
|
{
|
|
host->set_port(host, IKEV2_UDP_PORT);
|
|
}
|
|
else
|
|
{ /* fallback to address family specific %any(6), if configured */
|
|
host = host_create_from_dns(
|
|
this->ike_cfg->get_my_addr(this->ike_cfg),
|
|
0, IKEV2_UDP_PORT);
|
|
}
|
|
}
|
|
}
|
|
if (host)
|
|
{
|
|
set_my_host(this, host);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.initiate
|
|
*/
|
|
static status_t initiate(private_ike_sa_t *this,
|
|
child_cfg_t *child_cfg, u_int32_t reqid,
|
|
traffic_selector_t *tsi, traffic_selector_t *tsr)
|
|
{
|
|
task_t *task;
|
|
|
|
if (this->state == IKE_CREATED)
|
|
{
|
|
resolve_hosts(this);
|
|
|
|
if (this->other_host->is_anyaddr(this->other_host)
|
|
#ifdef ME
|
|
&& !this->peer_cfg->get_mediated_by(this->peer_cfg)
|
|
#endif /* ME */
|
|
)
|
|
{
|
|
child_cfg->destroy(child_cfg);
|
|
DBG1(DBG_IKE, "unable to initiate to %%any");
|
|
return DESTROY_ME;
|
|
}
|
|
|
|
set_condition(this, COND_ORIGINAL_INITIATOR, TRUE);
|
|
|
|
task = (task_t*)ike_init_create(&this->public, TRUE, NULL);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_natd_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_cert_pre_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_auth_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_cert_post_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_config_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
task = (task_t*)ike_auth_lifetime_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
if (this->peer_cfg->use_mobike(this->peer_cfg))
|
|
{
|
|
task = (task_t*)ike_mobike_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
}
|
|
#ifdef ME
|
|
task = (task_t*)ike_me_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
#endif /* ME */
|
|
}
|
|
|
|
#ifdef ME
|
|
if (this->peer_cfg->is_mediation(this->peer_cfg))
|
|
{
|
|
if (this->state == IKE_ESTABLISHED)
|
|
{
|
|
/* mediation connection is already established, retrigger state change
|
|
* to notify bus listeners */
|
|
DBG1(DBG_IKE, "mediation connection is already up");
|
|
set_state(this, IKE_ESTABLISHED);
|
|
}
|
|
DESTROY_IF(child_cfg);
|
|
}
|
|
else
|
|
#endif /* ME */
|
|
{
|
|
/* normal IKE_SA with CHILD_SA */
|
|
task = (task_t*)child_create_create(&this->public, child_cfg, tsi, tsr);
|
|
child_cfg->destroy(child_cfg);
|
|
if (reqid)
|
|
{
|
|
child_create_t *child_create = (child_create_t*)task;
|
|
child_create->use_reqid(child_create, reqid);
|
|
}
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
|
|
#ifdef ME
|
|
if (this->peer_cfg->get_mediated_by(this->peer_cfg))
|
|
{
|
|
/* mediated connection, initiate mediation process */
|
|
job_t *job = (job_t*)initiate_mediation_job_create(this->ike_sa_id);
|
|
charon->processor->queue_job(charon->processor, job);
|
|
return SUCCESS;
|
|
}
|
|
#endif /* ME */
|
|
}
|
|
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.process_message.
|
|
*/
|
|
static status_t process_message(private_ike_sa_t *this, message_t *message)
|
|
{
|
|
status_t status;
|
|
bool is_request;
|
|
|
|
if (this->state == IKE_PASSIVE)
|
|
{ /* do not handle messages in passive state */
|
|
return FAILED;
|
|
}
|
|
|
|
is_request = message->get_request(message);
|
|
|
|
status = message->parse_body(message,
|
|
this->keymat->get_crypter(this->keymat, TRUE),
|
|
this->keymat->get_signer(this->keymat, TRUE));
|
|
if (status != SUCCESS)
|
|
{
|
|
|
|
if (is_request)
|
|
{
|
|
switch (status)
|
|
{
|
|
case NOT_SUPPORTED:
|
|
DBG1(DBG_IKE, "critical unknown payloads found");
|
|
if (is_request)
|
|
{
|
|
send_notify_response(this, message, UNSUPPORTED_CRITICAL_PAYLOAD);
|
|
}
|
|
break;
|
|
case PARSE_ERROR:
|
|
DBG1(DBG_IKE, "message parsing failed");
|
|
if (is_request)
|
|
{
|
|
send_notify_response(this, message, INVALID_SYNTAX);
|
|
}
|
|
break;
|
|
case VERIFY_ERROR:
|
|
DBG1(DBG_IKE, "message verification failed");
|
|
if (is_request)
|
|
{
|
|
send_notify_response(this, message, INVALID_SYNTAX);
|
|
}
|
|
break;
|
|
case FAILED:
|
|
DBG1(DBG_IKE, "integrity check failed");
|
|
/* ignored */
|
|
break;
|
|
case INVALID_STATE:
|
|
DBG1(DBG_IKE, "found encrypted message, but no keys available");
|
|
if (is_request)
|
|
{
|
|
send_notify_response(this, message, INVALID_SYNTAX);
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
DBG1(DBG_IKE, "%N %s with message ID %d processing failed",
|
|
exchange_type_names, message->get_exchange_type(message),
|
|
message->get_request(message) ? "request" : "response",
|
|
message->get_message_id(message));
|
|
|
|
if (this->state == IKE_CREATED)
|
|
{ /* invalid initiation attempt, close SA */
|
|
return DESTROY_ME;
|
|
}
|
|
return status;
|
|
}
|
|
else
|
|
{
|
|
host_t *me, *other;
|
|
|
|
me = message->get_destination(message);
|
|
other = message->get_source(message);
|
|
|
|
/* if this IKE_SA is virgin, we check for a config */
|
|
if (this->ike_cfg == NULL)
|
|
{
|
|
job_t *job;
|
|
this->ike_cfg = charon->backends->get_ike_cfg(charon->backends,
|
|
me, other);
|
|
if (this->ike_cfg == NULL)
|
|
{
|
|
/* no config found for these hosts, destroy */
|
|
DBG1(DBG_IKE, "no IKE config found for %H...%H, sending %N",
|
|
me, other, notify_type_names, NO_PROPOSAL_CHOSEN);
|
|
send_notify_response(this, message, NO_PROPOSAL_CHOSEN);
|
|
return DESTROY_ME;
|
|
}
|
|
/* add a timeout if peer does not establish it completely */
|
|
job = (job_t*)delete_ike_sa_job_create(this->ike_sa_id, FALSE);
|
|
charon->scheduler->schedule_job(charon->scheduler, job,
|
|
HALF_OPEN_IKE_SA_TIMEOUT);
|
|
}
|
|
this->stats[STAT_INBOUND] = time(NULL);
|
|
/* check if message is trustworthy, and update host information */
|
|
if (this->state == IKE_CREATED || this->state == IKE_CONNECTING ||
|
|
message->get_exchange_type(message) != IKE_SA_INIT)
|
|
{
|
|
if (!supports_extension(this, EXT_MOBIKE))
|
|
{ /* with MOBIKE, we do no implicit updates */
|
|
update_hosts(this, me, other);
|
|
}
|
|
}
|
|
return this->task_manager->process_message(this->task_manager, message);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_id.
|
|
*/
|
|
static ike_sa_id_t* get_id(private_ike_sa_t *this)
|
|
{
|
|
return this->ike_sa_id;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_my_id.
|
|
*/
|
|
static identification_t* get_my_id(private_ike_sa_t *this)
|
|
{
|
|
return this->my_id;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_my_id.
|
|
*/
|
|
static void set_my_id(private_ike_sa_t *this, identification_t *me)
|
|
{
|
|
DESTROY_IF(this->my_id);
|
|
this->my_id = me;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_other_id.
|
|
*/
|
|
static identification_t* get_other_id(private_ike_sa_t *this)
|
|
{
|
|
return this->other_id;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_other_id.
|
|
*/
|
|
static void set_other_id(private_ike_sa_t *this, identification_t *other)
|
|
{
|
|
DESTROY_IF(this->other_id);
|
|
this->other_id = other;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_eap_identity.
|
|
*/
|
|
static identification_t* get_eap_identity(private_ike_sa_t *this)
|
|
{
|
|
return this->eap_identity;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_eap_identity.
|
|
*/
|
|
static void set_eap_identity(private_ike_sa_t *this, identification_t *id)
|
|
{
|
|
DESTROY_IF(this->eap_identity);
|
|
this->eap_identity = id;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.add_child_sa.
|
|
*/
|
|
static void add_child_sa(private_ike_sa_t *this, child_sa_t *child_sa)
|
|
{
|
|
this->child_sas->insert_last(this->child_sas, child_sa);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.get_child_sa.
|
|
*/
|
|
static child_sa_t* get_child_sa(private_ike_sa_t *this, protocol_id_t protocol,
|
|
u_int32_t spi, bool inbound)
|
|
{
|
|
iterator_t *iterator;
|
|
child_sa_t *current, *found = NULL;
|
|
|
|
iterator = this->child_sas->create_iterator(this->child_sas, TRUE);
|
|
while (iterator->iterate(iterator, (void**)¤t))
|
|
{
|
|
if (current->get_spi(current, inbound) == spi &&
|
|
current->get_protocol(current) == protocol)
|
|
{
|
|
found = current;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
return found;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.create_child_sa_iterator.
|
|
*/
|
|
static iterator_t* create_child_sa_iterator(private_ike_sa_t *this)
|
|
{
|
|
return this->child_sas->create_iterator(this->child_sas, TRUE);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.rekey_child_sa.
|
|
*/
|
|
static status_t rekey_child_sa(private_ike_sa_t *this, protocol_id_t protocol,
|
|
u_int32_t spi)
|
|
{
|
|
child_rekey_t *child_rekey;
|
|
|
|
child_rekey = child_rekey_create(&this->public, protocol, spi);
|
|
this->task_manager->queue_task(this->task_manager, &child_rekey->task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.delete_child_sa.
|
|
*/
|
|
static status_t delete_child_sa(private_ike_sa_t *this, protocol_id_t protocol,
|
|
u_int32_t spi)
|
|
{
|
|
child_delete_t *child_delete;
|
|
|
|
child_delete = child_delete_create(&this->public, protocol, spi);
|
|
this->task_manager->queue_task(this->task_manager, &child_delete->task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.destroy_child_sa.
|
|
*/
|
|
static status_t destroy_child_sa(private_ike_sa_t *this, protocol_id_t protocol,
|
|
u_int32_t spi)
|
|
{
|
|
iterator_t *iterator;
|
|
child_sa_t *child_sa;
|
|
status_t status = NOT_FOUND;
|
|
|
|
iterator = this->child_sas->create_iterator(this->child_sas, TRUE);
|
|
while (iterator->iterate(iterator, (void**)&child_sa))
|
|
{
|
|
if (child_sa->get_protocol(child_sa) == protocol &&
|
|
child_sa->get_spi(child_sa, TRUE) == spi)
|
|
{
|
|
child_sa->destroy(child_sa);
|
|
iterator->remove(iterator);
|
|
status = SUCCESS;
|
|
break;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Implementation of public_ike_sa_t.delete.
|
|
*/
|
|
static status_t delete_(private_ike_sa_t *this)
|
|
{
|
|
ike_delete_t *ike_delete;
|
|
|
|
switch (this->state)
|
|
{
|
|
case IKE_ESTABLISHED:
|
|
case IKE_REKEYING:
|
|
ike_delete = ike_delete_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, &ike_delete->task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
case IKE_CREATED:
|
|
DBG1(DBG_IKE, "deleting unestablished IKE_SA");
|
|
break;
|
|
case IKE_PASSIVE:
|
|
break;
|
|
default:
|
|
DBG1(DBG_IKE, "destroying IKE_SA in state %N "
|
|
"without notification", ike_sa_state_names, this->state);
|
|
break;
|
|
}
|
|
return DESTROY_ME;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.rekey.
|
|
*/
|
|
static status_t rekey(private_ike_sa_t *this)
|
|
{
|
|
ike_rekey_t *ike_rekey;
|
|
|
|
ike_rekey = ike_rekey_create(&this->public, TRUE);
|
|
|
|
this->task_manager->queue_task(this->task_manager, &ike_rekey->task);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.reauth
|
|
*/
|
|
static status_t reauth(private_ike_sa_t *this)
|
|
{
|
|
task_t *task;
|
|
|
|
/* we can't reauthenticate as responder when we use EAP or virtual IPs.
|
|
* If the peer does not support RFC4478, there is no way to keep the
|
|
* IKE_SA up. */
|
|
if (!has_condition(this, COND_ORIGINAL_INITIATOR))
|
|
{
|
|
DBG1(DBG_IKE, "initiator did not reauthenticate as requested");
|
|
if (this->other_virtual_ip != NULL ||
|
|
has_condition(this, COND_EAP_AUTHENTICATED)
|
|
#ifdef ME
|
|
/* if we are mediation server we too cannot reauth the IKE_SA */
|
|
|| this->is_mediation_server
|
|
#endif /* ME */
|
|
)
|
|
{
|
|
time_t now = time(NULL);
|
|
|
|
DBG1(DBG_IKE, "IKE_SA will timeout in %V",
|
|
&now, &this->stats[STAT_DELETE]);
|
|
return FAILED;
|
|
}
|
|
else
|
|
{
|
|
DBG1(DBG_IKE, "reauthenticating actively");
|
|
}
|
|
}
|
|
task = (task_t*)ike_reauth_create(&this->public);
|
|
this->task_manager->queue_task(this->task_manager, task);
|
|
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.reestablish
|
|
*/
|
|
static status_t reestablish(private_ike_sa_t *this)
|
|
{
|
|
ike_sa_t *new;
|
|
host_t *host;
|
|
action_t action;
|
|
iterator_t *iterator;
|
|
child_sa_t *child_sa;
|
|
child_cfg_t *child_cfg;
|
|
bool required = FALSE;
|
|
status_t status = FAILED;
|
|
|
|
/* check if we have children to keep up at all*/
|
|
iterator = create_child_sa_iterator(this);
|
|
while (iterator->iterate(iterator, (void**)&child_sa))
|
|
{
|
|
child_cfg = child_sa->get_config(child_sa);
|
|
if (this->state == IKE_DELETING)
|
|
{
|
|
action = child_cfg->get_close_action(child_cfg);
|
|
}
|
|
else
|
|
{
|
|
action = child_cfg->get_dpd_action(child_cfg);
|
|
}
|
|
switch (action)
|
|
{
|
|
case ACTION_RESTART:
|
|
case ACTION_ROUTE:
|
|
required = TRUE;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
#ifdef ME
|
|
/* we initiate the new IKE_SA of the mediation connection without CHILD_SA */
|
|
if (this->peer_cfg->is_mediation(this->peer_cfg))
|
|
{
|
|
required = TRUE;
|
|
}
|
|
#endif /* ME */
|
|
if (!required)
|
|
{
|
|
return FAILED;
|
|
}
|
|
|
|
/* check if we are able to reestablish this IKE_SA */
|
|
if (!has_condition(this, COND_ORIGINAL_INITIATOR) &&
|
|
(this->other_virtual_ip != NULL ||
|
|
has_condition(this, COND_EAP_AUTHENTICATED)
|
|
#ifdef ME
|
|
|| this->is_mediation_server
|
|
#endif /* ME */
|
|
))
|
|
{
|
|
DBG1(DBG_IKE, "unable to reestablish IKE_SA due asymetric setup");
|
|
return FAILED;
|
|
}
|
|
|
|
new = charon->ike_sa_manager->checkout_new(charon->ike_sa_manager, TRUE);
|
|
new->set_peer_cfg(new, this->peer_cfg);
|
|
host = this->other_host;
|
|
new->set_other_host(new, host->clone(host));
|
|
host = this->my_host;
|
|
new->set_my_host(new, host->clone(host));
|
|
/* if we already have a virtual IP, we reuse it */
|
|
host = this->my_virtual_ip;
|
|
if (host)
|
|
{
|
|
new->set_virtual_ip(new, TRUE, host);
|
|
}
|
|
|
|
#ifdef ME
|
|
if (this->peer_cfg->is_mediation(this->peer_cfg))
|
|
{
|
|
status = new->initiate(new, NULL, 0, NULL, NULL);
|
|
}
|
|
else
|
|
#endif /* ME */
|
|
{
|
|
iterator = create_child_sa_iterator(this);
|
|
while (iterator->iterate(iterator, (void**)&child_sa))
|
|
{
|
|
child_cfg = child_sa->get_config(child_sa);
|
|
if (this->state == IKE_DELETING)
|
|
{
|
|
action = child_cfg->get_close_action(child_cfg);
|
|
}
|
|
else
|
|
{
|
|
action = child_cfg->get_dpd_action(child_cfg);
|
|
}
|
|
switch (action)
|
|
{
|
|
case ACTION_RESTART:
|
|
DBG1(DBG_IKE, "restarting CHILD_SA %s",
|
|
child_cfg->get_name(child_cfg));
|
|
child_cfg->get_ref(child_cfg);
|
|
status = new->initiate(new, child_cfg, 0, NULL, NULL);
|
|
break;
|
|
case ACTION_ROUTE:
|
|
charon->traps->install(charon->traps,
|
|
this->peer_cfg, child_cfg);
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
if (status == DESTROY_ME)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
iterator->destroy(iterator);
|
|
}
|
|
|
|
if (status == DESTROY_ME)
|
|
{
|
|
charon->ike_sa_manager->checkin_and_destroy(charon->ike_sa_manager, new);
|
|
status = FAILED;
|
|
}
|
|
else
|
|
{
|
|
charon->ike_sa_manager->checkin(charon->ike_sa_manager, new);
|
|
status = SUCCESS;
|
|
}
|
|
charon->bus->set_sa(charon->bus, &this->public);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.retransmit.
|
|
*/
|
|
static status_t retransmit(private_ike_sa_t *this, u_int32_t message_id)
|
|
{
|
|
this->stats[STAT_OUTBOUND] = time(NULL);
|
|
if (this->task_manager->retransmit(this->task_manager, message_id) != SUCCESS)
|
|
{
|
|
/* send a proper signal to brief interested bus listeners */
|
|
switch (this->state)
|
|
{
|
|
case IKE_CONNECTING:
|
|
{
|
|
/* retry IKE_SA_INIT if we have multiple keyingtries */
|
|
u_int32_t tries = this->peer_cfg->get_keyingtries(this->peer_cfg);
|
|
this->keyingtry++;
|
|
if (tries == 0 || tries > this->keyingtry)
|
|
{
|
|
DBG1(DBG_IKE, "peer not responding, trying again (%d/%d)",
|
|
this->keyingtry + 1, tries);
|
|
reset(this);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
DBG1(DBG_IKE, "establishing IKE_SA failed, peer not responding");
|
|
break;
|
|
}
|
|
case IKE_DELETING:
|
|
DBG1(DBG_IKE, "proper IKE_SA delete failed, peer not responding");
|
|
break;
|
|
case IKE_REKEYING:
|
|
DBG1(DBG_IKE, "rekeying IKE_SA failed, peer not responding");
|
|
/* FALL */
|
|
default:
|
|
reestablish(this);
|
|
break;
|
|
}
|
|
return DESTROY_ME;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.set_auth_lifetime.
|
|
*/
|
|
static void set_auth_lifetime(private_ike_sa_t *this, u_int32_t lifetime)
|
|
{
|
|
u_int32_t reduction = this->peer_cfg->get_over_time(this->peer_cfg);
|
|
u_int32_t reauth_time = time(NULL) + lifetime - reduction;
|
|
|
|
if (lifetime < reduction)
|
|
{
|
|
DBG1(DBG_IKE, "received AUTH_LIFETIME of %ds, starting reauthentication",
|
|
lifetime);
|
|
charon->processor->queue_job(charon->processor,
|
|
(job_t*)rekey_ike_sa_job_create(this->ike_sa_id, TRUE));
|
|
}
|
|
else if (this->stats[STAT_REAUTH] == 0 ||
|
|
this->stats[STAT_REAUTH] > reauth_time)
|
|
{
|
|
this->stats[STAT_REAUTH] = reauth_time;
|
|
DBG1(DBG_IKE, "received AUTH_LIFETIME of %ds, scheduling reauthentication"
|
|
" in %ds", lifetime, lifetime - reduction);
|
|
charon->scheduler->schedule_job(charon->scheduler,
|
|
(job_t*)rekey_ike_sa_job_create(this->ike_sa_id, TRUE),
|
|
lifetime - reduction);
|
|
}
|
|
else
|
|
{
|
|
DBG1(DBG_IKE, "received AUTH_LIFETIME of %ds, reauthentication already "
|
|
"scheduled in %ds", lifetime, this->stats[STAT_REAUTH] - time(NULL));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.roam.
|
|
*/
|
|
static status_t roam(private_ike_sa_t *this, bool address)
|
|
{
|
|
host_t *src;
|
|
ike_mobike_t *mobike;
|
|
|
|
switch (this->state)
|
|
{
|
|
case IKE_CREATED:
|
|
case IKE_DELETING:
|
|
case IKE_DESTROYING:
|
|
case IKE_PASSIVE:
|
|
return SUCCESS;
|
|
default:
|
|
break;
|
|
}
|
|
/* responder just updates the peer about changed address config */
|
|
if (!this->ike_sa_id->is_initiator(this->ike_sa_id))
|
|
{
|
|
if (supports_extension(this, EXT_MOBIKE) && address)
|
|
{
|
|
DBG1(DBG_IKE, "sending address list update using MOBIKE");
|
|
mobike = ike_mobike_create(&this->public, TRUE);
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)mobike);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
/* keep existing path if possible */
|
|
src = charon->kernel_interface->get_source_addr(charon->kernel_interface,
|
|
this->other_host, this->my_host);
|
|
if (src)
|
|
{
|
|
if (src->ip_equals(src, this->my_host))
|
|
{
|
|
DBG2(DBG_IKE, "keeping connection path %H - %H",
|
|
src, this->other_host);
|
|
src->destroy(src);
|
|
set_condition(this, COND_STALE, FALSE);
|
|
return SUCCESS;
|
|
}
|
|
src->destroy(src);
|
|
|
|
}
|
|
else
|
|
{
|
|
/* check if we find a route at all */
|
|
enumerator_t *enumerator;
|
|
host_t *addr;
|
|
|
|
src = charon->kernel_interface->get_source_addr(charon->kernel_interface,
|
|
this->other_host, NULL);
|
|
if (!src)
|
|
{
|
|
enumerator = this->additional_addresses->create_enumerator(
|
|
this->additional_addresses);
|
|
while (enumerator->enumerate(enumerator, &addr))
|
|
{
|
|
DBG1(DBG_IKE, "looking for a route to %H ...", addr);
|
|
src = charon->kernel_interface->get_source_addr(
|
|
charon->kernel_interface, addr, NULL);
|
|
if (src)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
enumerator->destroy(enumerator);
|
|
}
|
|
if (!src)
|
|
{
|
|
DBG1(DBG_IKE, "no route found to reach %H, MOBIKE update deferred",
|
|
this->other_host);
|
|
set_condition(this, COND_STALE, TRUE);
|
|
return SUCCESS;
|
|
}
|
|
src->destroy(src);
|
|
}
|
|
set_condition(this, COND_STALE, FALSE);
|
|
|
|
/* update addresses with mobike, if supported ... */
|
|
if (supports_extension(this, EXT_MOBIKE))
|
|
{
|
|
DBG1(DBG_IKE, "requesting address change using MOBIKE");
|
|
mobike = ike_mobike_create(&this->public, TRUE);
|
|
mobike->roam(mobike, address);
|
|
this->task_manager->queue_task(this->task_manager, (task_t*)mobike);
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
DBG1(DBG_IKE, "reauthenticating IKE_SA due to address change");
|
|
/* ... reauth if not */
|
|
return reauth(this);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.add_configuration_attribute
|
|
*/
|
|
static void add_configuration_attribute(private_ike_sa_t *this,
|
|
configuration_attribute_type_t type, chunk_t data)
|
|
{
|
|
attribute_entry_t *entry;
|
|
attribute_handler_t *handler;
|
|
|
|
handler = charon->attributes->handle(charon->attributes,
|
|
&this->public, type, data);
|
|
if (handler)
|
|
{
|
|
entry = malloc_thing(attribute_entry_t);
|
|
entry->handler = handler;
|
|
entry->type = type;
|
|
entry->data = chunk_clone(data);
|
|
|
|
this->attributes->insert_last(this->attributes, entry);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.inherit.
|
|
*/
|
|
static status_t inherit(private_ike_sa_t *this, private_ike_sa_t *other)
|
|
{
|
|
child_sa_t *child_sa;
|
|
attribute_entry_t *entry;
|
|
|
|
/* apply hosts and ids */
|
|
this->my_host->destroy(this->my_host);
|
|
this->other_host->destroy(this->other_host);
|
|
this->my_id->destroy(this->my_id);
|
|
this->other_id->destroy(this->other_id);
|
|
this->my_host = other->my_host->clone(other->my_host);
|
|
this->other_host = other->other_host->clone(other->other_host);
|
|
this->my_id = other->my_id->clone(other->my_id);
|
|
this->other_id = other->other_id->clone(other->other_id);
|
|
|
|
/* apply virtual assigned IPs... */
|
|
if (other->my_virtual_ip)
|
|
{
|
|
this->my_virtual_ip = other->my_virtual_ip;
|
|
other->my_virtual_ip = NULL;
|
|
}
|
|
if (other->other_virtual_ip)
|
|
{
|
|
this->other_virtual_ip = other->other_virtual_ip;
|
|
other->other_virtual_ip = NULL;
|
|
}
|
|
|
|
/* ... and configuration attributes */
|
|
while (other->attributes->remove_last(other->attributes,
|
|
(void**)&entry) == SUCCESS)
|
|
{
|
|
this->attributes->insert_first(this->attributes, entry);
|
|
}
|
|
|
|
/* inherit all conditions */
|
|
this->conditions = other->conditions;
|
|
if (this->conditions & COND_NAT_HERE)
|
|
{
|
|
send_keepalive(this);
|
|
}
|
|
|
|
#ifdef ME
|
|
if (other->is_mediation_server)
|
|
{
|
|
act_as_mediation_server(this);
|
|
}
|
|
else if (other->server_reflexive_host)
|
|
{
|
|
this->server_reflexive_host = other->server_reflexive_host->clone(
|
|
other->server_reflexive_host);
|
|
}
|
|
#endif /* ME */
|
|
|
|
/* adopt all children */
|
|
while (other->child_sas->remove_last(other->child_sas,
|
|
(void**)&child_sa) == SUCCESS)
|
|
{
|
|
this->child_sas->insert_first(this->child_sas, (void*)child_sa);
|
|
}
|
|
|
|
/* move pending tasks to the new IKE_SA */
|
|
this->task_manager->adopt_tasks(this->task_manager, other->task_manager);
|
|
|
|
/* reauthentication timeout survives a rekeying */
|
|
if (other->stats[STAT_REAUTH])
|
|
{
|
|
time_t reauth, delete, now = time(NULL);
|
|
|
|
this->stats[STAT_REAUTH] = other->stats[STAT_REAUTH];
|
|
reauth = this->stats[STAT_REAUTH] - now;
|
|
delete = reauth + this->peer_cfg->get_over_time(this->peer_cfg);
|
|
this->stats[STAT_DELETE] = this->stats[STAT_REAUTH] + delete;
|
|
DBG1(DBG_IKE, "rescheduling reauthentication in %ds after rekeying, "
|
|
"lifetime reduced to %ds", reauth, delete);
|
|
charon->scheduler->schedule_job(charon->scheduler,
|
|
(job_t*)rekey_ike_sa_job_create(this->ike_sa_id, TRUE), reauth);
|
|
charon->scheduler->schedule_job(charon->scheduler,
|
|
(job_t*)delete_ike_sa_job_create(this->ike_sa_id, TRUE), delete);
|
|
}
|
|
/* we have to initate here, there may be new tasks to handle */
|
|
return this->task_manager->initiate(this->task_manager);
|
|
}
|
|
|
|
/**
|
|
* Implementation of ike_sa_t.destroy.
|
|
*/
|
|
static void destroy(private_ike_sa_t *this)
|
|
{
|
|
attribute_entry_t *entry;
|
|
|
|
charon->bus->set_sa(charon->bus, &this->public);
|
|
|
|
set_state(this, IKE_DESTROYING);
|
|
|
|
/* remove attributes first, as we pass the IKE_SA to the handler */
|
|
while (this->attributes->remove_last(this->attributes,
|
|
(void**)&entry) == SUCCESS)
|
|
{
|
|
charon->attributes->release(charon->attributes, entry->handler,
|
|
&this->public, entry->type, entry->data);
|
|
free(entry->data.ptr);
|
|
free(entry);
|
|
}
|
|
this->attributes->destroy(this->attributes);
|
|
|
|
this->child_sas->destroy_offset(this->child_sas, offsetof(child_sa_t, destroy));
|
|
|
|
/* unset SA after here to avoid usage by the listeners */
|
|
charon->bus->set_sa(charon->bus, NULL);
|
|
|
|
this->task_manager->destroy(this->task_manager);
|
|
this->keymat->destroy(this->keymat);
|
|
|
|
if (this->my_virtual_ip)
|
|
{
|
|
charon->kernel_interface->del_ip(charon->kernel_interface,
|
|
this->my_virtual_ip);
|
|
this->my_virtual_ip->destroy(this->my_virtual_ip);
|
|
}
|
|
if (this->other_virtual_ip)
|
|
{
|
|
if (this->peer_cfg && this->peer_cfg->get_pool(this->peer_cfg))
|
|
{
|
|
charon->attributes->release_address(charon->attributes,
|
|
this->peer_cfg->get_pool(this->peer_cfg),
|
|
this->other_virtual_ip, this->other_id);
|
|
}
|
|
this->other_virtual_ip->destroy(this->other_virtual_ip);
|
|
}
|
|
this->additional_addresses->destroy_offset(this->additional_addresses,
|
|
offsetof(host_t, destroy));
|
|
#ifdef ME
|
|
if (this->is_mediation_server)
|
|
{
|
|
charon->mediation_manager->remove(charon->mediation_manager, this->ike_sa_id);
|
|
}
|
|
DESTROY_IF(this->server_reflexive_host);
|
|
chunk_free(&this->connect_id);
|
|
#endif /* ME */
|
|
free(this->nat_detection_dest.ptr);
|
|
|
|
DESTROY_IF(this->my_host);
|
|
DESTROY_IF(this->other_host);
|
|
DESTROY_IF(this->my_id);
|
|
DESTROY_IF(this->other_id);
|
|
DESTROY_IF(this->local_host);
|
|
DESTROY_IF(this->remote_host);
|
|
DESTROY_IF(this->eap_identity);
|
|
|
|
DESTROY_IF(this->ike_cfg);
|
|
DESTROY_IF(this->peer_cfg);
|
|
DESTROY_IF(this->proposal);
|
|
this->my_auth->destroy(this->my_auth);
|
|
this->other_auth->destroy(this->other_auth);
|
|
|
|
this->ike_sa_id->destroy(this->ike_sa_id);
|
|
free(this);
|
|
}
|
|
|
|
/*
|
|
* Described in header.
|
|
*/
|
|
ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id)
|
|
{
|
|
private_ike_sa_t *this = malloc_thing(private_ike_sa_t);
|
|
static u_int32_t unique_id = 0;
|
|
|
|
/* Public functions */
|
|
this->public.get_state = (ike_sa_state_t (*)(ike_sa_t*)) get_state;
|
|
this->public.set_state = (void (*)(ike_sa_t*,ike_sa_state_t)) set_state;
|
|
this->public.get_name = (char* (*)(ike_sa_t*))get_name;
|
|
this->public.get_statistic = (u_int32_t(*)(ike_sa_t*, statistic_t kind))get_statistic;
|
|
this->public.process_message = (status_t (*)(ike_sa_t*, message_t*)) process_message;
|
|
this->public.initiate = (status_t (*)(ike_sa_t*,child_cfg_t*,u_int32_t,traffic_selector_t*,traffic_selector_t*)) initiate;
|
|
this->public.get_ike_cfg = (ike_cfg_t* (*)(ike_sa_t*))get_ike_cfg;
|
|
this->public.set_ike_cfg = (void (*)(ike_sa_t*,ike_cfg_t*))set_ike_cfg;
|
|
this->public.get_peer_cfg = (peer_cfg_t* (*)(ike_sa_t*))get_peer_cfg;
|
|
this->public.set_peer_cfg = (void (*)(ike_sa_t*,peer_cfg_t*))set_peer_cfg;
|
|
this->public.get_auth_cfg = (auth_cfg_t*(*)(ike_sa_t*, bool local))get_auth_cfg;
|
|
this->public.get_proposal = (proposal_t*(*)(ike_sa_t*))get_proposal;
|
|
this->public.set_proposal = (void(*)(ike_sa_t*, proposal_t *proposal))set_proposal;
|
|
this->public.get_id = (ike_sa_id_t* (*)(ike_sa_t*)) get_id;
|
|
this->public.get_my_host = (host_t* (*)(ike_sa_t*)) get_my_host;
|
|
this->public.set_my_host = (void (*)(ike_sa_t*,host_t*)) set_my_host;
|
|
this->public.get_other_host = (host_t* (*)(ike_sa_t*)) get_other_host;
|
|
this->public.set_other_host = (void (*)(ike_sa_t*,host_t*)) set_other_host;
|
|
this->public.set_message_id = (void(*)(ike_sa_t*, bool inbound, u_int32_t mid))set_message_id;
|
|
this->public.update_hosts = (void(*)(ike_sa_t*, host_t *me, host_t *other))update_hosts;
|
|
this->public.get_my_id = (identification_t* (*)(ike_sa_t*)) get_my_id;
|
|
this->public.set_my_id = (void (*)(ike_sa_t*,identification_t*)) set_my_id;
|
|
this->public.get_other_id = (identification_t* (*)(ike_sa_t*)) get_other_id;
|
|
this->public.set_other_id = (void (*)(ike_sa_t*,identification_t*)) set_other_id;
|
|
this->public.get_eap_identity = (identification_t* (*)(ike_sa_t*)) get_eap_identity;
|
|
this->public.set_eap_identity = (void (*)(ike_sa_t*,identification_t*)) set_eap_identity;
|
|
this->public.enable_extension = (void(*)(ike_sa_t*, ike_extension_t extension))enable_extension;
|
|
this->public.supports_extension = (bool(*)(ike_sa_t*, ike_extension_t extension))supports_extension;
|
|
this->public.set_condition = (void (*)(ike_sa_t*, ike_condition_t,bool)) set_condition;
|
|
this->public.has_condition = (bool (*)(ike_sa_t*,ike_condition_t)) has_condition;
|
|
this->public.set_pending_updates = (void(*)(ike_sa_t*, u_int32_t updates))set_pending_updates;
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this->public.get_pending_updates = (u_int32_t(*)(ike_sa_t*))get_pending_updates;
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this->public.create_additional_address_iterator = (iterator_t*(*)(ike_sa_t*))create_additional_address_iterator;
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this->public.add_additional_address = (void(*)(ike_sa_t*, host_t *host))add_additional_address;
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this->public.has_mapping_changed = (bool(*)(ike_sa_t*, chunk_t hash))has_mapping_changed;
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this->public.retransmit = (status_t (*)(ike_sa_t *, u_int32_t)) retransmit;
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this->public.delete = (status_t (*)(ike_sa_t*))delete_;
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this->public.destroy = (void (*)(ike_sa_t*))destroy;
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this->public.send_dpd = (status_t (*)(ike_sa_t*)) send_dpd;
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this->public.send_keepalive = (void (*)(ike_sa_t*)) send_keepalive;
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this->public.get_keymat = (keymat_t*(*)(ike_sa_t*))get_keymat;
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this->public.add_child_sa = (void (*)(ike_sa_t*,child_sa_t*)) add_child_sa;
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|
this->public.get_child_sa = (child_sa_t* (*)(ike_sa_t*,protocol_id_t,u_int32_t,bool)) get_child_sa;
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this->public.create_child_sa_iterator = (iterator_t* (*)(ike_sa_t*)) create_child_sa_iterator;
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|
this->public.rekey_child_sa = (status_t (*)(ike_sa_t*,protocol_id_t,u_int32_t)) rekey_child_sa;
|
|
this->public.delete_child_sa = (status_t (*)(ike_sa_t*,protocol_id_t,u_int32_t)) delete_child_sa;
|
|
this->public.destroy_child_sa = (status_t (*)(ike_sa_t*,protocol_id_t,u_int32_t))destroy_child_sa;
|
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this->public.rekey = (status_t (*)(ike_sa_t*))rekey;
|
|
this->public.reauth = (status_t (*)(ike_sa_t*))reauth;
|
|
this->public.reestablish = (status_t (*)(ike_sa_t*))reestablish;
|
|
this->public.set_auth_lifetime = (void(*)(ike_sa_t*, u_int32_t lifetime))set_auth_lifetime;
|
|
this->public.roam = (status_t(*)(ike_sa_t*,bool))roam;
|
|
this->public.inherit = (status_t (*)(ike_sa_t*,ike_sa_t*))inherit;
|
|
this->public.generate_message = (status_t (*)(ike_sa_t*,message_t*,packet_t**))generate_message;
|
|
this->public.reset = (void (*)(ike_sa_t*))reset;
|
|
this->public.get_unique_id = (u_int32_t (*)(ike_sa_t*))get_unique_id;
|
|
this->public.set_virtual_ip = (void (*)(ike_sa_t*,bool,host_t*))set_virtual_ip;
|
|
this->public.get_virtual_ip = (host_t* (*)(ike_sa_t*,bool))get_virtual_ip;
|
|
this->public.add_configuration_attribute = (void(*)(ike_sa_t*, configuration_attribute_type_t type, chunk_t data))add_configuration_attribute;
|
|
this->public.set_kmaddress = (void (*)(ike_sa_t*,host_t*,host_t*))set_kmaddress;
|
|
#ifdef ME
|
|
this->public.act_as_mediation_server = (void (*)(ike_sa_t*)) act_as_mediation_server;
|
|
this->public.get_server_reflexive_host = (host_t* (*)(ike_sa_t*)) get_server_reflexive_host;
|
|
this->public.set_server_reflexive_host = (void (*)(ike_sa_t*,host_t*)) set_server_reflexive_host;
|
|
this->public.get_connect_id = (chunk_t (*)(ike_sa_t*)) get_connect_id;
|
|
this->public.initiate_mediation = (status_t (*)(ike_sa_t*,peer_cfg_t*)) initiate_mediation;
|
|
this->public.initiate_mediated = (status_t (*)(ike_sa_t*,host_t*,host_t*,chunk_t)) initiate_mediated;
|
|
this->public.relay = (status_t (*)(ike_sa_t*,identification_t*,chunk_t,chunk_t,linked_list_t*,bool)) relay;
|
|
this->public.callback = (status_t (*)(ike_sa_t*,identification_t*)) callback;
|
|
this->public.respond = (status_t (*)(ike_sa_t*,identification_t*,chunk_t)) respond;
|
|
#endif /* ME */
|
|
|
|
/* initialize private fields */
|
|
this->ike_sa_id = ike_sa_id->clone(ike_sa_id);
|
|
this->child_sas = linked_list_create();
|
|
this->my_host = host_create_any(AF_INET);
|
|
this->my_host->set_port(this->my_host, IKEV2_UDP_PORT);
|
|
this->other_host = host_create_any(AF_INET);
|
|
this->my_id = identification_create_from_encoding(ID_ANY, chunk_empty);
|
|
this->other_id = identification_create_from_encoding(ID_ANY, chunk_empty);
|
|
this->eap_identity = NULL;
|
|
this->extensions = 0;
|
|
this->conditions = 0;
|
|
this->keymat = keymat_create(ike_sa_id->is_initiator(ike_sa_id));
|
|
this->state = IKE_CREATED;
|
|
this->keepalive_interval = lib->settings->get_time(lib->settings,
|
|
"charon.keep_alive", KEEPALIVE_INTERVAL);
|
|
memset(this->stats, 0, sizeof(this->stats));
|
|
this->stats[STAT_INBOUND] = this->stats[STAT_OUTBOUND] = time(NULL);
|
|
this->ike_cfg = NULL;
|
|
this->peer_cfg = NULL;
|
|
this->my_auth = auth_cfg_create();
|
|
this->other_auth = auth_cfg_create();
|
|
this->proposal = NULL;
|
|
this->task_manager = task_manager_create(&this->public);
|
|
this->unique_id = ++unique_id;
|
|
this->my_virtual_ip = NULL;
|
|
this->other_virtual_ip = NULL;
|
|
this->additional_addresses = linked_list_create();
|
|
this->attributes = linked_list_create();
|
|
this->nat_detection_dest = chunk_empty;
|
|
this->pending_updates = 0;
|
|
this->keyingtry = 0;
|
|
this->local_host = NULL;
|
|
this->remote_host = NULL;
|
|
#ifdef ME
|
|
this->is_mediation_server = FALSE;
|
|
this->server_reflexive_host = NULL;
|
|
this->connect_id = chunk_empty;
|
|
#endif /* ME */
|
|
|
|
return &this->public;
|
|
}
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