1*b867e84eSAndrey V. Elsukov /*-
2*b867e84eSAndrey V. Elsukov * Copyright (c) 2016 Yandex LLC
3*b867e84eSAndrey V. Elsukov * Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
4*b867e84eSAndrey V. Elsukov * All rights reserved.
5*b867e84eSAndrey V. Elsukov *
6*b867e84eSAndrey V. Elsukov * Redistribution and use in source and binary forms, with or without
7*b867e84eSAndrey V. Elsukov * modification, are permitted provided that the following conditions
8*b867e84eSAndrey V. Elsukov * are met:
9*b867e84eSAndrey V. Elsukov *
10*b867e84eSAndrey V. Elsukov * 1. Redistributions of source code must retain the above copyright
11*b867e84eSAndrey V. Elsukov * notice, this list of conditions and the following disclaimer.
12*b867e84eSAndrey V. Elsukov * 2. Redistributions in binary form must reproduce the above copyright
13*b867e84eSAndrey V. Elsukov * notice, this list of conditions and the following disclaimer in the
14*b867e84eSAndrey V. Elsukov * documentation and/or other materials provided with the distribution.
15*b867e84eSAndrey V. Elsukov *
16*b867e84eSAndrey V. Elsukov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17*b867e84eSAndrey V. Elsukov * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18*b867e84eSAndrey V. Elsukov * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*b867e84eSAndrey V. Elsukov * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20*b867e84eSAndrey V. Elsukov * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21*b867e84eSAndrey V. Elsukov * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22*b867e84eSAndrey V. Elsukov * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23*b867e84eSAndrey V. Elsukov * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24*b867e84eSAndrey V. Elsukov * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25*b867e84eSAndrey V. Elsukov * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*b867e84eSAndrey V. Elsukov */
27*b867e84eSAndrey V. Elsukov
28*b867e84eSAndrey V. Elsukov #include <sys/param.h>
29*b867e84eSAndrey V. Elsukov #include <sys/systm.h>
30*b867e84eSAndrey V. Elsukov #include <sys/kernel.h>
31*b867e84eSAndrey V. Elsukov #include <sys/lock.h>
32*b867e84eSAndrey V. Elsukov #include <sys/malloc.h>
33*b867e84eSAndrey V. Elsukov #include <sys/module.h>
34*b867e84eSAndrey V. Elsukov #include <sys/rwlock.h>
35*b867e84eSAndrey V. Elsukov #include <sys/socket.h>
36*b867e84eSAndrey V. Elsukov
37*b867e84eSAndrey V. Elsukov #include <net/if.h>
38*b867e84eSAndrey V. Elsukov #include <net/vnet.h>
39*b867e84eSAndrey V. Elsukov
40*b867e84eSAndrey V. Elsukov #include <netinet/in.h>
41*b867e84eSAndrey V. Elsukov #include <netinet/ip_var.h>
42*b867e84eSAndrey V. Elsukov #include <netinet/ip_fw.h>
43*b867e84eSAndrey V. Elsukov
44*b867e84eSAndrey V. Elsukov #include <netpfil/ipfw/ip_fw_private.h>
45*b867e84eSAndrey V. Elsukov #include <netpfil/ipfw/nptv6/nptv6.h>
46*b867e84eSAndrey V. Elsukov
47*b867e84eSAndrey V. Elsukov static int
vnet_ipfw_nptv6_init(const void * arg __unused)48*b867e84eSAndrey V. Elsukov vnet_ipfw_nptv6_init(const void *arg __unused)
49*b867e84eSAndrey V. Elsukov {
50*b867e84eSAndrey V. Elsukov
51*b867e84eSAndrey V. Elsukov return (nptv6_init(&V_layer3_chain, IS_DEFAULT_VNET(curvnet)));
52*b867e84eSAndrey V. Elsukov }
53*b867e84eSAndrey V. Elsukov
54*b867e84eSAndrey V. Elsukov static int
vnet_ipfw_nptv6_uninit(const void * arg __unused)55*b867e84eSAndrey V. Elsukov vnet_ipfw_nptv6_uninit(const void *arg __unused)
56*b867e84eSAndrey V. Elsukov {
57*b867e84eSAndrey V. Elsukov
58*b867e84eSAndrey V. Elsukov nptv6_uninit(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));
59*b867e84eSAndrey V. Elsukov return (0);
60*b867e84eSAndrey V. Elsukov }
61*b867e84eSAndrey V. Elsukov
62*b867e84eSAndrey V. Elsukov static int
ipfw_nptv6_modevent(module_t mod,int type,void * unused)63*b867e84eSAndrey V. Elsukov ipfw_nptv6_modevent(module_t mod, int type, void *unused)
64*b867e84eSAndrey V. Elsukov {
65*b867e84eSAndrey V. Elsukov
66*b867e84eSAndrey V. Elsukov switch (type) {
67*b867e84eSAndrey V. Elsukov case MOD_LOAD:
68*b867e84eSAndrey V. Elsukov case MOD_UNLOAD:
69*b867e84eSAndrey V. Elsukov break;
70*b867e84eSAndrey V. Elsukov default:
71*b867e84eSAndrey V. Elsukov return (EOPNOTSUPP);
72*b867e84eSAndrey V. Elsukov }
73*b867e84eSAndrey V. Elsukov return (0);
74*b867e84eSAndrey V. Elsukov }
75*b867e84eSAndrey V. Elsukov
76*b867e84eSAndrey V. Elsukov static moduledata_t ipfw_nptv6_mod = {
77*b867e84eSAndrey V. Elsukov "ipfw_nptv6",
78*b867e84eSAndrey V. Elsukov ipfw_nptv6_modevent,
79*b867e84eSAndrey V. Elsukov 0
80*b867e84eSAndrey V. Elsukov };
81*b867e84eSAndrey V. Elsukov
82*b867e84eSAndrey V. Elsukov /* Define startup order. */
83*b867e84eSAndrey V. Elsukov #define IPFW_NPTV6_SI_SUB_FIREWALL SI_SUB_PROTO_IFATTACHDOMAIN
84*b867e84eSAndrey V. Elsukov #define IPFW_NPTV6_MODEVENT_ORDER (SI_ORDER_ANY - 128) /* after ipfw */
85*b867e84eSAndrey V. Elsukov #define IPFW_NPTV6_MODULE_ORDER (IPFW_NPTV6_MODEVENT_ORDER + 1)
86*b867e84eSAndrey V. Elsukov #define IPFW_NPTV6_VNET_ORDER (IPFW_NPTV6_MODEVENT_ORDER + 2)
87*b867e84eSAndrey V. Elsukov
88*b867e84eSAndrey V. Elsukov DECLARE_MODULE(ipfw_nptv6, ipfw_nptv6_mod, IPFW_NPTV6_SI_SUB_FIREWALL,
89*b867e84eSAndrey V. Elsukov IPFW_NPTV6_MODULE_ORDER);
90*b867e84eSAndrey V. Elsukov MODULE_DEPEND(ipfw_nptv6, ipfw, 3, 3, 3);
91*b867e84eSAndrey V. Elsukov MODULE_VERSION(ipfw_nptv6, 1);
92*b867e84eSAndrey V. Elsukov
93*b867e84eSAndrey V. Elsukov VNET_SYSINIT(vnet_ipfw_nptv6_init, IPFW_NPTV6_SI_SUB_FIREWALL,
94*b867e84eSAndrey V. Elsukov IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_init, NULL);
95*b867e84eSAndrey V. Elsukov VNET_SYSUNINIT(vnet_ipfw_nptv6_uninit, IPFW_NPTV6_SI_SUB_FIREWALL,
96*b867e84eSAndrey V. Elsukov IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_uninit, NULL);
97