2007-02-28 14:04:36 +00:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2006-2007 Martin Willi
|
|
|
|
* Hochschule fuer Technik Rapperswil
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
|
|
* under the terms of the GNU General Public License as published by the
|
|
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
|
|
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful, but
|
|
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
* for more details.
|
2008-03-13 14:14:44 +00:00
|
|
|
*
|
|
|
|
* $Id$
|
2007-02-28 14:04:36 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#include "ike_delete.h"
|
|
|
|
|
|
|
|
#include <daemon.h>
|
|
|
|
#include <encoding/payloads/delete_payload.h>
|
|
|
|
|
|
|
|
|
|
|
|
typedef struct private_ike_delete_t private_ike_delete_t;
|
|
|
|
|
2007-04-10 06:01:03 +00:00
|
|
|
/**file
|
2007-02-28 14:04:36 +00:00
|
|
|
* Private members of a ike_delete_t task.
|
|
|
|
*/
|
|
|
|
struct private_ike_delete_t {
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Public methods and task_t interface.
|
|
|
|
*/
|
|
|
|
ike_delete_t public;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Assigned IKE_SA.
|
|
|
|
*/
|
|
|
|
ike_sa_t *ike_sa;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Are we the initiator?
|
|
|
|
*/
|
|
|
|
bool initiator;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* are we responding to a delete, but have initated our own?
|
|
|
|
*/
|
|
|
|
bool simultaneous;
|
|
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.build for initiator
|
|
|
|
*/
|
|
|
|
static status_t build_i(private_ike_delete_t *this, message_t *message)
|
|
|
|
{
|
|
|
|
delete_payload_t *delete_payload;
|
|
|
|
|
|
|
|
delete_payload = delete_payload_create(PROTO_IKE);
|
|
|
|
message->add_payload(message, (payload_t*)delete_payload);
|
|
|
|
|
|
|
|
this->ike_sa->set_state(this->ike_sa, IKE_DELETING);
|
|
|
|
|
|
|
|
return NEED_MORE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.process for initiator
|
|
|
|
*/
|
|
|
|
static status_t process_i(private_ike_delete_t *this, message_t *message)
|
|
|
|
{
|
|
|
|
/* completed, delete IKE_SA by returning FAILED */
|
|
|
|
return FAILED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.process for initiator
|
|
|
|
*/
|
|
|
|
static status_t process_r(private_ike_delete_t *this, message_t *message)
|
|
|
|
{
|
|
|
|
/* we don't even scan the payloads, as the message wouldn't have
|
|
|
|
* come so far without being correct */
|
|
|
|
switch (this->ike_sa->get_state(this->ike_sa))
|
|
|
|
{
|
|
|
|
case IKE_DELETING:
|
|
|
|
this->simultaneous = TRUE;
|
|
|
|
break;
|
|
|
|
case IKE_ESTABLISHED:
|
|
|
|
DBG1(DBG_IKE, "deleting IKE_SA on request");
|
2007-03-20 16:13:21 +00:00
|
|
|
break;
|
|
|
|
case IKE_REKEYING:
|
|
|
|
break;
|
2007-02-28 14:04:36 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2007-03-20 16:13:21 +00:00
|
|
|
this->ike_sa->set_state(this->ike_sa, IKE_DELETING);
|
2007-02-28 14:04:36 +00:00
|
|
|
return NEED_MORE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.build for responder
|
|
|
|
*/
|
|
|
|
static status_t build_r(private_ike_delete_t *this, message_t *message)
|
|
|
|
{
|
|
|
|
if (this->simultaneous)
|
|
|
|
{
|
2007-03-20 16:13:21 +00:00
|
|
|
/* wait for peers response for our delete request, but set a timeout */
|
2007-02-28 14:04:36 +00:00
|
|
|
return SUCCESS;
|
|
|
|
}
|
|
|
|
/* completed, delete IKE_SA by returning FAILED */
|
|
|
|
return FAILED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.get_type
|
|
|
|
*/
|
|
|
|
static task_type_t get_type(private_ike_delete_t *this)
|
|
|
|
{
|
|
|
|
return IKE_DELETE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.migrate
|
|
|
|
*/
|
|
|
|
static void migrate(private_ike_delete_t *this, ike_sa_t *ike_sa)
|
|
|
|
{
|
|
|
|
this->ike_sa = ike_sa;
|
|
|
|
this->simultaneous = FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of task_t.destroy
|
|
|
|
*/
|
|
|
|
static void destroy(private_ike_delete_t *this)
|
|
|
|
{
|
|
|
|
free(this);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Described in header.
|
|
|
|
*/
|
|
|
|
ike_delete_t *ike_delete_create(ike_sa_t *ike_sa, bool initiator)
|
|
|
|
{
|
|
|
|
private_ike_delete_t *this = malloc_thing(private_ike_delete_t);
|
|
|
|
|
|
|
|
this->public.task.get_type = (task_type_t(*)(task_t*))get_type;
|
|
|
|
this->public.task.migrate = (void(*)(task_t*,ike_sa_t*))migrate;
|
|
|
|
this->public.task.destroy = (void(*)(task_t*))destroy;
|
|
|
|
|
|
|
|
if (initiator)
|
|
|
|
{
|
|
|
|
this->public.task.build = (status_t(*)(task_t*,message_t*))build_i;
|
|
|
|
this->public.task.process = (status_t(*)(task_t*,message_t*))process_i;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
this->public.task.build = (status_t(*)(task_t*,message_t*))build_r;
|
|
|
|
this->public.task.process = (status_t(*)(task_t*,message_t*))process_r;
|
|
|
|
}
|
|
|
|
|
|
|
|
this->ike_sa = ike_sa;
|
|
|
|
this->initiator = initiator;
|
|
|
|
this->simultaneous = FALSE;
|
|
|
|
|
|
|
|
return &this->public;
|
|
|
|
}
|