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/cdefs.h>
29__FBSDID("$FreeBSD$");
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/lock.h>
35#include <sys/malloc.h>
36#include <sys/module.h>
37#include <sys/rwlock.h>
38#include <sys/socket.h>
39
40#include <net/if.h>
41#include <net/vnet.h>
42
43#include <netinet/in.h>
44#include <netinet/ip_var.h>
45#include <netinet/ip_fw.h>
46
47#include <netpfil/ipfw/ip_fw_private.h>
48#include <netpfil/ipfw/nptv6/nptv6.h>
49
50static int
51vnet_ipfw_nptv6_init(const void *arg __unused)
52{
53
54	return (nptv6_init(&V_layer3_chain, IS_DEFAULT_VNET(curvnet)));
55}
56
57static int
58vnet_ipfw_nptv6_uninit(const void *arg __unused)
59{
60
61	nptv6_uninit(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));
62	return (0);
63}
64
65static int
66ipfw_nptv6_modevent(module_t mod, int type, void *unused)
67{
68
69	switch (type) {
70	case MOD_LOAD:
71	case MOD_UNLOAD:
72		break;
73	default:
74		return (EOPNOTSUPP);
75	}
76	return (0);
77}
78
79static moduledata_t ipfw_nptv6_mod = {
80	"ipfw_nptv6",
81	ipfw_nptv6_modevent,
82	0
83};
84
85/* Define startup order. */
86#define	IPFW_NPTV6_SI_SUB_FIREWALL	SI_SUB_PROTO_IFATTACHDOMAIN
87#define	IPFW_NPTV6_MODEVENT_ORDER	(SI_ORDER_ANY - 128) /* after ipfw */
88#define	IPFW_NPTV6_MODULE_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 1)
89#define	IPFW_NPTV6_VNET_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 2)
90
91DECLARE_MODULE(ipfw_nptv6, ipfw_nptv6_mod, IPFW_NPTV6_SI_SUB_FIREWALL,
92    IPFW_NPTV6_MODULE_ORDER);
93MODULE_DEPEND(ipfw_nptv6, ipfw, 3, 3, 3);
94MODULE_VERSION(ipfw_nptv6, 1);
95
96VNET_SYSINIT(vnet_ipfw_nptv6_init, IPFW_NPTV6_SI_SUB_FIREWALL,
97    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_init, NULL);
98VNET_SYSUNINIT(vnet_ipfw_nptv6_uninit, IPFW_NPTV6_SI_SUB_FIREWALL,
99    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_uninit, NULL);
100