src/libcharon/processing/jobs/delete_ike_sa_job.c

   1 /*
   2  * Copyright (C) 2005-2006 Martin Willi
   3  * Copyright (C) 2005 Jan Hutter
   4  * Hochschule fuer Technik Rapperswil
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16
  17 #include "delete_ike_sa_job.h"
  18
  19 #include <daemon.h>
  20
  21 typedef struct private_delete_ike_sa_job_t private_delete_ike_sa_job_t;
  22
  23 /**
  24  * Private data of an delete_ike_sa_job_t Object
  25  */
  26 struct private_delete_ike_sa_job_t {
  27         /**
  28          * public delete_ike_sa_job_t interface
  29          */
  30         delete_ike_sa_job_t public;
  31
  32         /**
  33          * ID of the ike_sa to delete
  34          */
  35         ike_sa_id_t *ike_sa_id;
  36
  37         /**
  38          * Should the IKE_SA be deleted if it is in ESTABLISHED state?
  39          */
  40         bool delete_if_established;
  41 };
  42
  43
  44 METHOD(job_t, destroy, void,
  45         private_delete_ike_sa_job_t *this)
  46 {
  47         this->ike_sa_id->destroy(this->ike_sa_id);
  48         free(this);
  49 }
  50
  51 METHOD(job_t, execute, void,
  52         private_delete_ike_sa_job_t *this)
  53 {
  54         ike_sa_t *ike_sa;
  55
  56         ike_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
  57                                                                                           this->ike_sa_id);
  58         if (ike_sa)
  59         {
  60                 if (ike_sa->get_state(ike_sa) == IKE_PASSIVE)
  61                 {
  62                         charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
  63                         return destroy(this);
  64                 }
  65                 if (this->delete_if_established)
  66                 {
  67                         if (ike_sa->delete(ike_sa) == DESTROY_ME)
  68                         {
  69                                 charon->ike_sa_manager->checkin_and_destroy(
  70                                                                                                 charon->ike_sa_manager, ike_sa);
  71                         }
  72                         else
  73                         {
  74                                 charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
  75                         }
  76                 }
  77                 else
  78                 {
  79                         /* destroy only if not ESTABLISHED */
  80                         if (ike_sa->get_state(ike_sa) == IKE_ESTABLISHED)
  81                         {
  82                                 charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
  83                         }
  84                         else
  85                         {
  86                                 DBG1(DBG_JOB, "deleting half open IKE_SA after timeout");
  87                                 charon->ike_sa_manager->checkin_and_destroy(
  88                                                                                                 charon->ike_sa_manager, ike_sa);
  89                         }
  90                 }
  91         }
  92         destroy(this);
  93 }
  94
  95 /*
  96  * Described in header
  97  */
  98 delete_ike_sa_job_t *delete_ike_sa_job_create(ike_sa_id_t *ike_sa_id,
  99                                                                                           bool delete_if_established)
 100 {
 101         private_delete_ike_sa_job_t *this;
 102
 103         INIT(this,
 104                 .public = {
 105                         .job_interface = {
 106                                 .execute = _execute,
 107                                 .destroy = _destroy,
 108                         },
 109                 },
 110                 .ike_sa_id = ike_sa_id->clone(ike_sa_id),
 111                 .delete_if_established = delete_if_established,
 112         );
 113
 114         return &(this->public);
 115 }