1/*-
2 * Copyright (c) 2016 Yandex LLC
3 * Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/param.h>
29#include <sys/systm.h>
30#include <sys/kernel.h>
31#include <sys/lock.h>
32#include <sys/malloc.h>
33#include <sys/module.h>
34#include <sys/rwlock.h>
35#include <sys/socket.h>
36
37#include <net/if.h>
38#include <net/vnet.h>
39
40#include <netinet/in.h>
41#include <netinet/ip_var.h>
42#include <netinet/ip_fw.h>
43
44#include <netpfil/ipfw/ip_fw_private.h>
45#include <netpfil/ipfw/nptv6/nptv6.h>
46
47static int
48vnet_ipfw_nptv6_init(const void *arg __unused)
49{
50
51	return (nptv6_init(&V_layer3_chain, IS_DEFAULT_VNET(curvnet)));
52}
53
54static int
55vnet_ipfw_nptv6_uninit(const void *arg __unused)
56{
57
58	nptv6_uninit(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));
59	return (0);
60}
61
62static int
63ipfw_nptv6_modevent(module_t mod, int type, void *unused)
64{
65
66	switch (type) {
67	case MOD_LOAD:
68	case MOD_UNLOAD:
69		break;
70	default:
71		return (EOPNOTSUPP);
72	}
73	return (0);
74}
75
76static moduledata_t ipfw_nptv6_mod = {
77	"ipfw_nptv6",
78	ipfw_nptv6_modevent,
79	0
80};
81
82/* Define startup order. */
83#define	IPFW_NPTV6_SI_SUB_FIREWALL	SI_SUB_PROTO_IFATTACHDOMAIN
84#define	IPFW_NPTV6_MODEVENT_ORDER	(SI_ORDER_ANY - 128) /* after ipfw */
85#define	IPFW_NPTV6_MODULE_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 1)
86#define	IPFW_NPTV6_VNET_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 2)
87
88DECLARE_MODULE(ipfw_nptv6, ipfw_nptv6_mod, IPFW_NPTV6_SI_SUB_FIREWALL,
89    IPFW_NPTV6_MODULE_ORDER);
90MODULE_DEPEND(ipfw_nptv6, ipfw, 3, 3, 3);
91MODULE_VERSION(ipfw_nptv6, 1);
92
93VNET_SYSINIT(vnet_ipfw_nptv6_init, IPFW_NPTV6_SI_SUB_FIREWALL,
94    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_init, NULL);
95VNET_SYSUNINIT(vnet_ipfw_nptv6_uninit, IPFW_NPTV6_SI_SUB_FIREWALL,
96    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_uninit, NULL);
97