1*aac74aeaSAndrey V. Elsukov /*-
2*aac74aeaSAndrey V. Elsukov * Copyright (c) 2017 Yandex LLC
3*aac74aeaSAndrey V. Elsukov * Copyright (c) 2017 Andrey V. Elsukov <ae@FreeBSD.org>
4*aac74aeaSAndrey V. Elsukov * All rights reserved.
5*aac74aeaSAndrey V. Elsukov *
6*aac74aeaSAndrey V. Elsukov * Redistribution and use in source and binary forms, with or without
7*aac74aeaSAndrey V. Elsukov * modification, are permitted provided that the following conditions
8*aac74aeaSAndrey V. Elsukov * are met:
9*aac74aeaSAndrey V. Elsukov *
10*aac74aeaSAndrey V. Elsukov * 1. Redistributions of source code must retain the above copyright
11*aac74aeaSAndrey V. Elsukov * notice, this list of conditions and the following disclaimer.
12*aac74aeaSAndrey V. Elsukov * 2. Redistributions in binary form must reproduce the above copyright
13*aac74aeaSAndrey V. Elsukov * notice, this list of conditions and the following disclaimer in the
14*aac74aeaSAndrey V. Elsukov * documentation and/or other materials provided with the distribution.
15*aac74aeaSAndrey V. Elsukov *
16*aac74aeaSAndrey V. Elsukov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17*aac74aeaSAndrey V. Elsukov * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18*aac74aeaSAndrey V. Elsukov * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*aac74aeaSAndrey V. Elsukov * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20*aac74aeaSAndrey V. Elsukov * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21*aac74aeaSAndrey V. Elsukov * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22*aac74aeaSAndrey V. Elsukov * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23*aac74aeaSAndrey V. Elsukov * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24*aac74aeaSAndrey V. Elsukov * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25*aac74aeaSAndrey V. Elsukov * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*aac74aeaSAndrey V. Elsukov */
27*aac74aeaSAndrey V. Elsukov
28*aac74aeaSAndrey V. Elsukov #include <sys/param.h>
29*aac74aeaSAndrey V. Elsukov #include <sys/systm.h>
30*aac74aeaSAndrey V. Elsukov #include <sys/kernel.h>
31*aac74aeaSAndrey V. Elsukov #include <sys/lock.h>
32*aac74aeaSAndrey V. Elsukov #include <sys/malloc.h>
33*aac74aeaSAndrey V. Elsukov #include <sys/module.h>
34*aac74aeaSAndrey V. Elsukov #include <sys/rwlock.h>
35*aac74aeaSAndrey V. Elsukov #include <sys/socket.h>
36*aac74aeaSAndrey V. Elsukov
37*aac74aeaSAndrey V. Elsukov #include <net/if.h>
38*aac74aeaSAndrey V. Elsukov #include <net/vnet.h>
39*aac74aeaSAndrey V. Elsukov
40*aac74aeaSAndrey V. Elsukov #include <netinet/in.h>
41*aac74aeaSAndrey V. Elsukov #include <netinet/ip_var.h>
42*aac74aeaSAndrey V. Elsukov #include <netinet/ip_fw.h>
43*aac74aeaSAndrey V. Elsukov
44*aac74aeaSAndrey V. Elsukov #include <netpfil/ipfw/ip_fw_private.h>
45*aac74aeaSAndrey V. Elsukov #include <netpfil/ipfw/pmod/pmod.h>
46*aac74aeaSAndrey V. Elsukov
47*aac74aeaSAndrey V. Elsukov static int
vnet_ipfw_pmod_init(const void * arg __unused)48*aac74aeaSAndrey V. Elsukov vnet_ipfw_pmod_init(const void *arg __unused)
49*aac74aeaSAndrey V. Elsukov {
50*aac74aeaSAndrey V. Elsukov int error;
51*aac74aeaSAndrey V. Elsukov
52*aac74aeaSAndrey V. Elsukov error = tcpmod_init(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));
53*aac74aeaSAndrey V. Elsukov return (error);
54*aac74aeaSAndrey V. Elsukov }
55*aac74aeaSAndrey V. Elsukov
56*aac74aeaSAndrey V. Elsukov static int
vnet_ipfw_pmod_uninit(const void * arg __unused)57*aac74aeaSAndrey V. Elsukov vnet_ipfw_pmod_uninit(const void *arg __unused)
58*aac74aeaSAndrey V. Elsukov {
59*aac74aeaSAndrey V. Elsukov
60*aac74aeaSAndrey V. Elsukov tcpmod_uninit(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));
61*aac74aeaSAndrey V. Elsukov return (0);
62*aac74aeaSAndrey V. Elsukov }
63*aac74aeaSAndrey V. Elsukov
64*aac74aeaSAndrey V. Elsukov static int
ipfw_pmod_modevent(module_t mod,int type,void * unused)65*aac74aeaSAndrey V. Elsukov ipfw_pmod_modevent(module_t mod, int type, void *unused)
66*aac74aeaSAndrey V. Elsukov {
67*aac74aeaSAndrey V. Elsukov
68*aac74aeaSAndrey V. Elsukov switch (type) {
69*aac74aeaSAndrey V. Elsukov case MOD_LOAD:
70*aac74aeaSAndrey V. Elsukov case MOD_UNLOAD:
71*aac74aeaSAndrey V. Elsukov break;
72*aac74aeaSAndrey V. Elsukov default:
73*aac74aeaSAndrey V. Elsukov return (EOPNOTSUPP);
74*aac74aeaSAndrey V. Elsukov }
75*aac74aeaSAndrey V. Elsukov return (0);
76*aac74aeaSAndrey V. Elsukov }
77*aac74aeaSAndrey V. Elsukov
78*aac74aeaSAndrey V. Elsukov static moduledata_t ipfw_pmod_mod = {
79*aac74aeaSAndrey V. Elsukov "ipfw_pmod",
80*aac74aeaSAndrey V. Elsukov ipfw_pmod_modevent,
81*aac74aeaSAndrey V. Elsukov 0
82*aac74aeaSAndrey V. Elsukov };
83*aac74aeaSAndrey V. Elsukov
84*aac74aeaSAndrey V. Elsukov /* Define startup order. */
85*aac74aeaSAndrey V. Elsukov #define IPFW_PMOD_SI_SUB_FIREWALL SI_SUB_PROTO_IFATTACHDOMAIN
86*aac74aeaSAndrey V. Elsukov #define IPFW_PMOD_MODEVENT_ORDER (SI_ORDER_ANY - 128) /* after ipfw */
87*aac74aeaSAndrey V. Elsukov #define IPFW_PMOD_MODULE_ORDER (IPFW_PMOD_MODEVENT_ORDER + 1)
88*aac74aeaSAndrey V. Elsukov #define IPFW_PMOD_VNET_ORDER (IPFW_PMOD_MODEVENT_ORDER + 2)
89*aac74aeaSAndrey V. Elsukov
90*aac74aeaSAndrey V. Elsukov DECLARE_MODULE(ipfw_pmod, ipfw_pmod_mod, IPFW_PMOD_SI_SUB_FIREWALL,
91*aac74aeaSAndrey V. Elsukov IPFW_PMOD_MODULE_ORDER);
92*aac74aeaSAndrey V. Elsukov MODULE_DEPEND(ipfw_pmod, ipfw, 3, 3, 3);
93*aac74aeaSAndrey V. Elsukov MODULE_VERSION(ipfw_pmod, 1);
94*aac74aeaSAndrey V. Elsukov
95*aac74aeaSAndrey V. Elsukov VNET_SYSINIT(vnet_ipfw_pmod_init, IPFW_PMOD_SI_SUB_FIREWALL,
96*aac74aeaSAndrey V. Elsukov IPFW_PMOD_VNET_ORDER, vnet_ipfw_pmod_init, NULL);
97*aac74aeaSAndrey V. Elsukov VNET_SYSUNINIT(vnet_ipfw_pmod_uninit, IPFW_PMOD_SI_SUB_FIREWALL,
98*aac74aeaSAndrey V. Elsukov IPFW_PMOD_VNET_ORDER, vnet_ipfw_pmod_uninit, NULL);
99