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/*
* Copyright (C) 2011-2013 Andreas Steffen
* HSR 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.
*/
#include "tnc_ifmap_listener.h"
#include "tnc_ifmap_soap.h"
#include "tnc_ifmap_renew_session_job.h"
#include <daemon.h>
#include <hydra.h>
#include <utils/debug.h>
#define IFMAP_RENEW_SESSION_INTERVAL 150
typedef struct private_tnc_ifmap_listener_t private_tnc_ifmap_listener_t;
/**
* Private data of an tnc_ifmap_listener_t object.
*/
struct private_tnc_ifmap_listener_t {
/**
* Public tnc_ifmap_listener_t interface.
*/
tnc_ifmap_listener_t public;
/**
* TNC IF-MAP 2.0 SOAP interface
*/
tnc_ifmap_soap_t *ifmap;
};
/**
* Publish PEP device-ip metadata
*/
static bool publish_device_ip_addresses(private_tnc_ifmap_listener_t *this)
{
enumerator_t *enumerator;
host_t *host;
bool success = TRUE;
enumerator = hydra->kernel_interface->create_address_enumerator(
hydra->kernel_interface, ADDR_TYPE_REGULAR);
while (enumerator->enumerate(enumerator, &host))
{
if (!this->ifmap->publish_device_ip(this->ifmap, host))
{
success = FALSE;
break;
}
}
enumerator->destroy(enumerator);
return success;
}
/**
* Publish all IKE_SA metadata
*/
static bool reload_metadata(private_tnc_ifmap_listener_t *this)
{
ike_sa_t *ike_sa;
enumerator_t *enumerator;
bool success = TRUE;
enumerator = charon->controller->create_ike_sa_enumerator(
charon->controller, FALSE);
while (enumerator->enumerate(enumerator, &ike_sa))
{
if (ike_sa->get_state(ike_sa) != IKE_ESTABLISHED)
{
continue;
}
if (!this->ifmap->publish_ike_sa(this->ifmap, ike_sa, TRUE) ||
!this->ifmap->publish_virtual_ips(this->ifmap, ike_sa, TRUE))
{
success = FALSE;
break;
}
}
enumerator->destroy(enumerator);
return success;
}
METHOD(listener_t, ike_updown, bool,
private_tnc_ifmap_listener_t *this, ike_sa_t *ike_sa, bool up)
{
if (ike_sa->get_state(ike_sa) != IKE_CONNECTING)
{
this->ifmap->publish_ike_sa(this->ifmap, ike_sa, up);
}
return TRUE;
}
METHOD(listener_t, assign_vips, bool,
private_tnc_ifmap_listener_t *this, ike_sa_t *ike_sa, bool assign)
{
this->ifmap->publish_virtual_ips(this->ifmap, ike_sa, assign);
return TRUE;
}
METHOD(listener_t, alert, bool,
private_tnc_ifmap_listener_t *this, ike_sa_t *ike_sa, alert_t alert,
va_list args)
{
if (alert == ALERT_PEER_AUTH_FAILED)
{
this->ifmap->publish_enforcement_report(this->ifmap,
ike_sa->get_other_host(ike_sa),
"block", "authentication failed");
}
return TRUE;
}
METHOD(tnc_ifmap_listener_t, destroy, void,
private_tnc_ifmap_listener_t *this)
{
if (this->ifmap)
{
if (this->ifmap->get_session_id(this->ifmap))
{
this->ifmap->endSession(this->ifmap);
}
this->ifmap->destroy(this->ifmap);
}
free(this);
}
/**
* See header
*/
tnc_ifmap_listener_t *tnc_ifmap_listener_create(bool reload)
{
private_tnc_ifmap_listener_t *this;
job_t *job;
u_int32_t reschedule;
INIT(this,
.public = {
.listener = {
.ike_updown = _ike_updown,
.assign_vips = _assign_vips,
.alert = _alert,
},
.destroy = _destroy,
},
.ifmap = tnc_ifmap_soap_create(),
);
if (!this->ifmap)
{
destroy(this);
return NULL;
}
if (!this->ifmap->newSession(this->ifmap))
{
destroy(this);
return NULL;
}
if (!this->ifmap->purgePublisher(this->ifmap))
{
destroy(this);
return NULL;
}
if (!publish_device_ip_addresses(this))
{
destroy(this);
return NULL;
}
if (reload)
{
if (!reload_metadata(this))
{
destroy(this);
return NULL;
}
}
/* schedule periodic transmission of IF-MAP renewSession request */
reschedule = lib->settings->get_int(lib->settings,
"%s.plugins.tnc-ifmap.renew_session_interval",
IFMAP_RENEW_SESSION_INTERVAL, charon->name);
job = (job_t*)tnc_ifmap_renew_session_job_create(
this->ifmap->get_ref(this->ifmap), reschedule);
lib->scheduler->schedule_job(lib->scheduler, job, reschedule);
return &this->public;
}
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