2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)in_proto.c 8.2 (Berkeley) 2/9/95
34 * $FreeBSD: src/sys/netinet/in_proto.c,v 1.53.2.7 2003/08/24 08:24:38 hsu Exp $
35 * $DragonFly: src/sys/netinet/in_proto.c,v 1.17 2008/10/27 02:56:30 sephe Exp $
38 #include "opt_ipdivert.h"
40 #include "opt_mrouting.h"
41 #include "opt_ipsec.h"
42 #include "opt_inet6.h"
46 #include <sys/param.h>
47 #include <sys/kernel.h>
48 #include <sys/socket.h>
49 #include <sys/domain.h>
50 #include <sys/protosw.h>
51 #include <sys/queue.h>
52 #include <sys/sysctl.h>
55 #include <net/route.h>
57 #include <netinet/in.h>
58 #include <netinet/in_systm.h>
59 #include <netinet/ip.h>
60 #include <netinet/ip_var.h>
61 #include <netinet/ip_icmp.h>
62 #include <netinet/igmp_var.h>
64 #include <netinet/pim_var.h>
66 #include <netinet/tcp.h>
67 #include <netinet/tcp_timer.h>
68 #include <netinet/tcp_var.h>
69 #include <netinet/udp.h>
70 #include <netinet/udp_var.h>
71 #include <netinet/ip_encap.h>
73 #include <netinet/ip_divert.h>
77 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
81 #include <netinet6/ipsec.h>
82 #include <netinet6/ah.h>
84 #include <netinet6/esp.h>
86 #include <netinet6/ipcomp.h>
90 #include <netproto/ipsec/ipsec.h>
91 #endif /* FAST_IPSEC */
94 #include <netproto/ipx/ipx_ip.h>
99 #include <netns/ns_if.h>
103 #include <netinet/in_pcb.h>
104 #include <netinet/sctp_pcb.h>
105 #include <netinet/sctp.h>
106 #include <netinet/sctp_var.h>
109 #include <net/netisr.h> /* for cpu0_soport */
112 #include <netinet/ip_carp.h>
115 extern struct domain inetdomain;
116 static struct pr_usrreqs nousrreqs;
118 struct protosw inetsw[] = {
119 { 0, &inetdomain, 0, 0,
122 ip_init, 0, ip_slowtimo, ip_drain,
125 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
126 udp_input, 0, udp_ctlinput, ip_ctloutput,
127 udp_soport, udp_ctlport,
131 { SOCK_STREAM, &inetdomain, IPPROTO_TCP,
132 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
133 tcp_input, 0, tcp_ctlinput, tcp_ctloutput,
134 tcp_soport, tcp_ctlport,
135 tcp_init, 0, tcp_slowtimo, tcp_drain,
140 * Order is very important here, we add the good one in
141 * in this postion so it maps to the right ip_protox[]
142 * postion for SCTP. Don't move the one above below
143 * this one or IPv6/4 compatability will break
145 { SOCK_DGRAM, &inetdomain, IPPROTO_SCTP, PR_ADDR_OPT|PR_WANTRCVD,
146 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
147 cpu0_soport, cpu0_ctlport,
148 sctp_init, 0, 0, sctp_drain,
151 { SOCK_SEQPACKET,&inetdomain, IPPROTO_SCTP, PR_ADDR_OPT|PR_WANTRCVD,
152 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
153 cpu0_soport, cpu0_ctlport,
158 { SOCK_STREAM, &inetdomain, IPPROTO_SCTP, PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD,
159 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
160 cpu0_soport, cpu0_ctlport,
165 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
166 rip_input, 0, rip_ctlinput, rip_ctloutput,
167 cpu0_soport, cpu0_ctlport,
171 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
172 icmp_input, 0, 0, rip_ctloutput,
177 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
178 igmp_input, 0, 0, rip_ctloutput,
180 igmp_init, igmp_fasttimo, igmp_slowtimo, 0,
183 { SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
184 rsvp_input, 0, 0, rip_ctloutput,
190 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
197 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
204 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
205 ipcomp4_input, 0, 0, 0,
212 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
213 ipsec4_common_input, 0, 0, 0,
218 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
219 ipsec4_common_input, 0, 0, 0,
224 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
225 ipsec4_common_input, 0, 0, 0,
230 #endif /* FAST_IPSEC */
231 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
232 encap4_input, 0, 0, rip_ctloutput,
237 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
238 encap4_input, 0, 0, rip_ctloutput,
243 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
244 encap4_input, 0, 0, rip_ctloutput,
250 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
251 encap4_input, 0, 0, rip_ctloutput,
258 { SOCK_RAW, &inetdomain, IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR,
259 div_input, 0, 0, ip_ctloutput,
266 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
267 ipxip_input, 0, ipxip_ctlinput, 0,
268 cpu0_soport, cpu0_ctlport,
274 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
275 idpip_input, 0, nsip_ctlinput, 0,
276 cpu0_soport, cpu0_ctlport,
282 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
283 pim_input, 0, 0, rip_ctloutput,
290 { SOCK_RAW, &inetdomain, IPPROTO_PFSYNC, PR_ATOMIC|PR_ADDR,
291 pfsync_input, 0, 0, rip_ctloutput,
298 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR,
299 rip_input, 0, 0, rip_ctloutput,
306 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR,
307 carp_input, rip_output, 0, rip_ctloutput,
316 struct domain inetdomain = {
317 AF_INET, "internet", NULL, NULL, NULL,
318 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])],
319 SLIST_ENTRY_INITIALIZER,
320 in_inithead, 32, sizeof(struct sockaddr_in),
325 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
328 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
329 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
330 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
331 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
332 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
334 /* XXX no protocol # to use, pick something "reserved" */
335 SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
336 SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
337 SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
338 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
339 SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
342 SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
344 #endif /* !FAST_IPSEC */
345 SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
347 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0, "DIVERT");
350 SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
353 SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP");