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#include <machine/rtems-bsd-kernel-space.h>
/*-
* Copyright (c) 2015-2016 Yandex LLC
* Copyright (c) 2015-2016 Andrey V. Elsukov <ae@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <rtems/bsd/sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <rtems/bsd/sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rwlock.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/vnet.h>
#include <netinet/in.h>
#include <netinet/ip_var.h>
#include <netinet/ip_fw.h>
#include <netpfil/ipfw/ip_fw_private.h>
#include <netpfil/ipfw/nat64/ip_fw_nat64.h>
#include <netpfil/ipfw/nat64/nat64_translate.h>
int nat64_debug = 0;
SYSCTL_DECL(_net_inet_ip_fw);
SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, nat64_debug, CTLFLAG_RW,
&nat64_debug, 0, "Debug level for NAT64 module");
int nat64_allow_private = 0;
SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, nat64_allow_private, CTLFLAG_RW,
&nat64_allow_private, 0,
"Allow use of non-global IPv4 addresses with NAT64");
static int
vnet_ipfw_nat64_init(const void *arg __unused)
{
struct ip_fw_chain *ch;
int first, error;
ch = &V_layer3_chain;
first = IS_DEFAULT_VNET(curvnet) ? 1: 0;
error = nat64stl_init(ch, first);
if (error != 0)
return (error);
error = nat64lsn_init(ch, first);
if (error != 0) {
nat64stl_uninit(ch, first);
return (error);
}
return (0);
}
static int
vnet_ipfw_nat64_uninit(const void *arg __unused)
{
struct ip_fw_chain *ch;
int last;
ch = &V_layer3_chain;
last = IS_DEFAULT_VNET(curvnet) ? 1: 0;
nat64stl_uninit(ch, last);
nat64lsn_uninit(ch, last);
return (0);
}
static int
ipfw_nat64_modevent(module_t mod, int type, void *unused)
{
switch (type) {
case MOD_LOAD:
case MOD_UNLOAD:
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
static moduledata_t ipfw_nat64_mod = {
"ipfw_nat64",
ipfw_nat64_modevent,
0
};
/* Define startup order. */
#define IPFW_NAT64_SI_SUB_FIREWALL SI_SUB_PROTO_IFATTACHDOMAIN
#define IPFW_NAT64_MODEVENT_ORDER (SI_ORDER_ANY - 128) /* after ipfw */
#define IPFW_NAT64_MODULE_ORDER (IPFW_NAT64_MODEVENT_ORDER + 1)
#define IPFW_NAT64_VNET_ORDER (IPFW_NAT64_MODEVENT_ORDER + 2)
DECLARE_MODULE(ipfw_nat64, ipfw_nat64_mod, IPFW_NAT64_SI_SUB_FIREWALL,
SI_ORDER_ANY);
MODULE_DEPEND(ipfw_nat64, ipfw, 3, 3, 3);
MODULE_VERSION(ipfw_nat64, 1);
VNET_SYSINIT(vnet_ipfw_nat64_init, IPFW_NAT64_SI_SUB_FIREWALL,
IPFW_NAT64_VNET_ORDER, vnet_ipfw_nat64_init, NULL);
VNET_SYSUNINIT(vnet_ipfw_nat64_uninit, IPFW_NAT64_SI_SUB_FIREWALL,
IPFW_NAT64_VNET_ORDER, vnet_ipfw_nat64_uninit, NULL);
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