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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* 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.
*/
#include "hook.h"
#include <encoding/payloads/unknown_payload.h>
typedef struct private_set_ike_spi_t private_set_ike_spi_t;
/**
* Private data of an set_ike_spi_t object.
*/
struct private_set_ike_spi_t {
/**
* Implements the hook_t interface.
*/
hook_t hook;
/**
* Alter requests or responses?
*/
bool req;
/**
* ID of message to alter.
*/
int id;
/**
* Initiator SPI
*/
uint64_t spii;
/**
* Responder SPI
*/
uint64_t spir;
};
METHOD(listener_t, message, bool,
private_set_ike_spi_t *this, ike_sa_t *ike_sa, message_t *message,
bool incoming, bool plain)
{
if (!incoming && plain &&
message->get_request(message) == this->req &&
message->get_message_id(message) == this->id)
{
ike_sa_id_t *id;
DBG1(DBG_CFG, "setting IKE SPIs to: 0x%llx/0x%llx",
this->spii, this->spir);
id = message->get_ike_sa_id(message);
id->set_initiator_spi(id, this->spii);
id->set_responder_spi(id, this->spir);
}
return TRUE;
}
METHOD(hook_t, destroy, void,
private_set_ike_spi_t *this)
{
free(this);
}
/**
* Create the IKE_AUTH fill hook
*/
hook_t *set_ike_spi_hook_create(char *name)
{
private_set_ike_spi_t *this;
INIT(this,
.hook = {
.listener = {
.message = _message,
},
.destroy = _destroy,
},
.req = conftest->test->get_bool(conftest->test,
"hooks.%s.request", TRUE, name),
.id = conftest->test->get_int(conftest->test,
"hooks.%s.id", 0, name),
.spii = strtoull(conftest->test->get_str(conftest->test,
"hooks.%s.spii", "0", name), NULL, 16),
.spir = strtoull(conftest->test->get_str(conftest->test,
"hooks.%s.spir", "0", name), NULL, 16),
);
return &this->hook;
}
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