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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/sa_payload.h>
typedef struct private_log_proposals_t private_log_proposals_t;
/**
* Private data of an log_proposals_t object.
*/
struct private_log_proposals_t {
/**
* Implements the hook_t interface.
*/
hook_t hook;
};
METHOD(listener_t, message, bool,
private_log_proposals_t *this, ike_sa_t *ike_sa, message_t *message,
bool incoming, bool plain)
{
if (incoming && plain)
{
enumerator_t *enumerator, *proposals;
payload_t *payload;
linked_list_t *list;
sa_payload_t *sa;
proposal_t *proposal;
enumerator = message->create_payload_enumerator(message);
while (enumerator->enumerate(enumerator, &payload))
{
if (payload->get_type(payload) == SECURITY_ASSOCIATION)
{
sa = (sa_payload_t*)payload;
list = sa->get_proposals(sa);
DBG1(DBG_CFG, "received %d proposal%s:", list->get_count(list),
list->get_count(list) == 1 ? "" : "s");
proposals = list->create_enumerator(list);
while (proposals->enumerate(proposals, &proposal))
{
u_int64_t spi = proposal->get_spi(proposal);
if (proposal->get_protocol(proposal) != PROTO_IKE)
{
spi = htonl(spi);
}
DBG1(DBG_CFG, " %d (SPI 0x%llx): %P",
proposal->get_number(proposal), spi, proposal);
}
proposals->destroy(proposals);
list->destroy_offset(list, offsetof(proposal_t, destroy));
}
}
enumerator->destroy(enumerator);
}
return TRUE;
}
METHOD(hook_t, destroy, void,
private_log_proposals_t *this)
{
free(this);
}
/**
* Create the IKE_AUTH fill hook
*/
hook_t *log_proposals_hook_create(char *name)
{
private_log_proposals_t *this;
INIT(this,
.hook = {
.listener = {
.message = _message,
},
.destroy = _destroy,
},
);
return &this->hook;
}
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