src/charon/processing/jobs/migrate_job.c

   1 /*
   2  * Copyright (C) 2008 Andreas Steffen
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  *
  15  * $Id$
  16  */
  17
  18 #include "migrate_job.h"
  19
  20 #include <daemon.h>
  21
  22 #include <config/child_cfg.h>
  23
  24
  25 typedef struct private_migrate_job_t private_migrate_job_t;
  26
  27 /**
  28  * Private data of a migrate_job_t object.
  29  */
  30 struct private_migrate_job_t {
  31         /**
  32          * Public migrate_job_t interface.
  33          */
  34         migrate_job_t public;
  35
  36         /**
  37          * reqid of the CHILD_SA if it already exists
  38          */
  39         u_int32_t reqid;
  40
  41         /**
  42          * source traffic selector
  43          */
  44         traffic_selector_t *src_ts;
  45
  46         /**
  47          * destination traffic selector
  48          */
  49         traffic_selector_t *dst_ts;
  50
  51         /**
  52          * local host address to be used for IKE
  53          */
  54         host_t *local;
  55
  56         /**
  57          * remote host address to be used for IKE
  58          */
  59         host_t *remote;
  60 };
  61
  62 /**
  63  * Implementation of job_t.destroy.
  64  */
  65 static void destroy(private_migrate_job_t *this)
  66 {
  67         DESTROY_IF(this->src_ts);
  68         DESTROY_IF(this->dst_ts);
  69         DESTROY_IF(this->local);
  70         DESTROY_IF(this->remote);
  71         free(this);
  72 }
  73
  74 /**
  75  * Implementation of job_t.execute.
  76  */
  77 static void execute(private_migrate_job_t *this)
  78 {
  79         ike_sa_t *ike_sa = NULL;
  80
  81         if (this->reqid)
  82         {
  83                 ike_sa = charon->ike_sa_manager->checkout_by_id(charon->ike_sa_manager,
  84                                                                                                                 this->reqid, TRUE);
  85         }
  86         if (ike_sa)
  87         {
  88                 DBG2(DBG_JOB, "found CHILD_SA with reqid {%d}", this->reqid);
  89                 ike_sa->set_kmaddress(ike_sa, this->local, this->remote);
  90                 charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
  91         }
  92         else
  93         {
  94                 DBG1(DBG_JOB, "no CHILD_SA found with reqid {%d}", this->reqid);
  95         }
  96         destroy(this);
  97 }
  98
  99 /*
 100  * Described in header
 101  */
 102 migrate_job_t *migrate_job_create(u_int32_t reqid,
 103                                                                   traffic_selector_t *src_ts,
 104                                                                   traffic_selector_t *dst_ts,
 105                                                                   policy_dir_t dir,
 106                                                                   host_t *local, host_t *remote)
 107 {
 108         private_migrate_job_t *this = malloc_thing(private_migrate_job_t);
 109
 110         /* interface functions */
 111         this->public.job_interface.execute = (void (*) (job_t *)) execute;
 112         this->public.job_interface.destroy = (void (*)(job_t*)) destroy;
 113
 114         /* private variables */
 115         this->reqid = reqid;
 116         this->src_ts = (dir == POLICY_OUT) ? src_ts : dst_ts;
 117         this->dst_ts = (dir == POLICY_OUT) ? dst_ts : src_ts;
 118         this->local = local;
 119         this->remote = remote;
 120
 121         return &this->public;
 122 }