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");