2 * Copyright 1999 Guido van Rooij. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS
15 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL THE HOLDER OR CONTRIBUTORS BE LIABLE FOR
18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $Id: mlfk_ipl.c,v 2.1.2.7 2001/08/27 21:14:04 darrenr Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
35 #include <sys/socket.h>
36 #include <sys/sysctl.h>
38 #include <netinet/in_systm.h>
39 #include <netinet/in.h>
40 #include <netinet/ip.h>
41 #if (__FreeBSD_version >= 199511)
42 # include <net/route.h>
43 # include <netinet/ip_var.h>
44 # include <netinet/tcp.h>
45 # include <netinet/tcpip.h>
49 #include <netinet/ipl.h>
50 #include <netinet/ip_compat.h>
51 #include <netinet/ip_fil.h>
52 #include <netinet/ip_state.h>
53 #include <netinet/ip_nat.h>
54 #include <netinet/ip_auth.h>
55 #include <netinet/ip_frag.h>
56 #include <netinet/ip_proxy.h>
58 static dev_t ipf_devs[IPL_LOGMAX + 1];
60 SYSCTL_DECL(_net_inet);
61 SYSCTL_NODE(_net_inet, OID_AUTO, ipf, CTLFLAG_RW, 0, "IPF");
62 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_flags, CTLFLAG_RW, &fr_flags, 0, "");
63 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_pass, CTLFLAG_RW, &fr_pass, 0, "");
64 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_active, CTLFLAG_RD, &fr_active, 0, "");
65 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcpidletimeout, CTLFLAG_RW,
66 &fr_tcpidletimeout, 0, "");
67 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcpclosewait, CTLFLAG_RW,
68 &fr_tcpclosewait, 0, "");
69 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcplastack, CTLFLAG_RW,
70 &fr_tcplastack, 0, "");
71 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcptimeout, CTLFLAG_RW,
72 &fr_tcptimeout, 0, "");
73 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcpclosed, CTLFLAG_RW,
74 &fr_tcpclosed, 0, "");
75 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_tcphalfclosed, CTLFLAG_RW,
76 &fr_tcphalfclosed, 0, "");
77 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_udptimeout, CTLFLAG_RW,
78 &fr_udptimeout, 0, "");
79 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_udpacktimeout, CTLFLAG_RW,
80 &fr_udpacktimeout, 0, "");
81 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_icmptimeout, CTLFLAG_RW,
82 &fr_icmptimeout, 0, "");
83 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_icmpacktimeout, CTLFLAG_RW,
84 &fr_icmpacktimeout, 0, "");
85 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_defnatage, CTLFLAG_RW,
86 &fr_defnatage, 0, "");
87 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_ipfrttl, CTLFLAG_RW,
89 SYSCTL_INT(_net_inet_ipf, OID_AUTO, ipl_unreach, CTLFLAG_RW,
91 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_running, CTLFLAG_RD,
93 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_authsize, CTLFLAG_RD,
95 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_authused, CTLFLAG_RD,
97 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_defaultauthage, CTLFLAG_RW,
98 &fr_defaultauthage, 0, "");
99 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_chksrc, CTLFLAG_RW, &fr_chksrc, 0, "");
100 SYSCTL_INT(_net_inet_ipf, OID_AUTO, ippr_ftp_pasvonly, CTLFLAG_RW,
101 &ippr_ftp_pasvonly, 0, "");
102 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_minttl, CTLFLAG_RW, &fr_minttl, 0, "");
103 SYSCTL_INT(_net_inet_ipf, OID_AUTO, fr_minttllog, CTLFLAG_RW,
104 &fr_minttllog, 0, "");
106 #define CDEV_MAJOR 79
107 static struct cdevsw ipl_cdevsw = {
109 /* close */ iplclose,
112 /* ioctl */ iplioctl,
115 /* strategy */ nostrategy,
117 /* maj */ CDEV_MAJOR,
125 ipfilter_modevent(module_t mod, int type, void *unused)
138 for(i=strlen(IPL_NAME); i>0; i--)
139 if (IPL_NAME[i] == '/') {
145 ipf_devs[IPL_LOGIPF] =
146 make_dev(&ipl_cdevsw, IPL_LOGIPF, 0, 0, 0600, c);
149 for(i=strlen(IPL_NAT); i>0; i--)
150 if (IPL_NAT[i] == '/') {
156 ipf_devs[IPL_LOGNAT] =
157 make_dev(&ipl_cdevsw, IPL_LOGNAT, 0, 0, 0600, c);
160 for(i=strlen(IPL_STATE); i>0; i--)
161 if (IPL_STATE[i] == '/') {
167 ipf_devs[IPL_LOGSTATE] =
168 make_dev(&ipl_cdevsw, IPL_LOGSTATE, 0, 0, 0600, c);
171 for(i=strlen(IPL_AUTH); i>0; i--)
172 if (IPL_AUTH[i] == '/') {
178 ipf_devs[IPL_LOGAUTH] =
179 make_dev(&ipl_cdevsw, IPL_LOGAUTH, 0, 0, 0600, c);
183 destroy_dev(ipf_devs[IPL_LOGIPF]);
184 destroy_dev(ipf_devs[IPL_LOGNAT]);
185 destroy_dev(ipf_devs[IPL_LOGSTATE]);
186 destroy_dev(ipf_devs[IPL_LOGAUTH]);
196 static moduledata_t ipfiltermod = {
201 DECLARE_MODULE(ipfilter, ipfiltermod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);