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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)in_proto.c 8.2 (Berkeley) 2/9/95
30 * $FreeBSD: src/sys/netinet/in_proto.c,v 1.53.2.7 2003/08/24 08:24:38 hsu Exp $
33 #include "opt_ipdivert.h"
34 #include "opt_mrouting.h"
35 #include "opt_ipsec.h"
36 #include "opt_inet6.h"
39 #include <sys/param.h>
40 #include <sys/kernel.h>
41 #include <sys/socket.h>
42 #include <sys/domain.h>
43 #include <sys/protosw.h>
44 #include <sys/queue.h>
45 #include <sys/sysctl.h>
48 #include <net/route.h>
50 #include <netinet/in.h>
51 #include <netinet/in_systm.h>
52 #include <netinet/in_pcb.h>
53 #include <netinet/ip.h>
54 #include <netinet/ip_var.h>
55 #include <netinet/ip_icmp.h>
56 #include <netinet/igmp_var.h>
58 #include <netinet/pim_var.h>
60 #include <netinet/tcp.h>
61 #include <netinet/tcp_timer.h>
62 #include <netinet/tcp_var.h>
63 #include <netinet/udp.h>
64 #include <netinet/udp_var.h>
65 #include <netinet/ip_encap.h>
67 #include <netinet/ip_divert.h>
71 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
75 #include <netinet6/ipsec.h>
76 #include <netinet6/ah.h>
78 #include <netinet6/esp.h>
80 #include <netinet6/ipcomp.h>
84 #include <netproto/ipsec/ipsec.h>
85 #endif /* FAST_IPSEC */
87 #include <net/netisr.h> /* for cpu0_soport */
90 #include <netinet/ip_carp.h>
93 extern struct domain inetdomain
;
94 static struct pr_usrreqs nousrreqs
;
96 struct protosw inetsw
[] = {
99 .pr_domain
= &inetdomain
,
107 .pr_slowtimo
= ip_slowtimo
,
108 .pr_drain
= ip_drain
,
109 .pr_usrreqs
= &nousrreqs
112 .pr_type
= SOCK_DGRAM
,
113 .pr_domain
= &inetdomain
,
114 .pr_protocol
= IPPROTO_UDP
,
115 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_MPSAFE
|
116 PR_ASYNC_SEND
|PR_ASEND_HOLDTD
|PR_ACONN_HOLDTD
,
118 .pr_initport
= udp_initport
,
119 .pr_input
= udp_input
,
121 .pr_ctlinput
= udp_ctlinput
,
122 .pr_ctloutput
= udp_ctloutput
,
124 .pr_ctlport
= udp_ctlport
,
126 .pr_usrreqs
= &udp_usrreqs
129 .pr_type
= SOCK_STREAM
,
130 .pr_domain
= &inetdomain
,
131 .pr_protocol
= IPPROTO_TCP
,
132 .pr_flags
= PR_CONNREQUIRED
|PR_WANTRCVD
|PR_MPSAFE
|
133 PR_ASYNC_SEND
|PR_ASYNC_RCVD
|PR_ACONN_HOLDTD
,
135 .pr_initport
= tcp_initport
,
136 .pr_input
= tcp_input
,
138 .pr_ctlinput
= tcp_ctlinput
,
139 .pr_ctloutmsg
= tcp_ctloutmsg
,
140 .pr_ctloutput
= tcp_ctloutput
,
142 .pr_ctlport
= tcp_ctlport
,
146 .pr_drain
= tcp_drain
,
147 .pr_usrreqs
= &tcp_usrreqs
151 .pr_domain
= &inetdomain
,
152 .pr_protocol
= IPPROTO_RAW
,
153 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
155 .pr_input
= rip_input
,
157 .pr_ctlinput
= rip_ctlinput
,
158 .pr_ctloutput
= rip_ctloutput
,
160 .pr_ctlport
= cpu0_ctlport
,
161 .pr_usrreqs
= &rip_usrreqs
165 .pr_domain
= &inetdomain
,
166 .pr_protocol
= IPPROTO_ICMP
,
167 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
|PR_MPSAFE
,
169 .pr_input
= icmp_input
,
172 .pr_ctloutput
= rip_ctloutput
,
174 .pr_usrreqs
= &rip_usrreqs
178 .pr_domain
= &inetdomain
,
179 .pr_protocol
= IPPROTO_IGMP
,
180 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
|PR_MPSAFE
,
182 .pr_input
= igmp_input
,
185 .pr_ctloutput
= rip_ctloutput
,
187 .pr_init
= igmp_init
,
188 .pr_fasttimo
= igmp_fasttimo
,
189 .pr_slowtimo
= igmp_slowtimo
,
191 .pr_usrreqs
= &rip_usrreqs
195 .pr_domain
= &inetdomain
,
196 .pr_protocol
= IPPROTO_RSVP
,
197 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
199 .pr_input
= rsvp_input
,
202 .pr_ctloutput
= rip_ctloutput
,
204 .pr_usrreqs
= &rip_usrreqs
209 .pr_domain
= &inetdomain
,
210 .pr_protocol
= IPPROTO_AH
,
211 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
213 .pr_input
= ah4_input
,
216 .pr_ctloutput
= NULL
,
219 .pr_usrreqs
= &nousrreqs
224 .pr_domain
= &inetdomain
,
225 .pr_protocol
= IPPROTO_ESP
,
226 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
228 .pr_input
= esp4_input
,
231 .pr_ctloutput
= NULL
,
234 .pr_usrreqs
= &nousrreqs
239 .pr_domain
= &inetdomain
,
240 .pr_protocol
= IPPROTO_IPCOMP
,
241 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
243 .pr_input
= ipcomp4_input
,
246 .pr_ctloutput
= NULL
,
249 .pr_usrreqs
= &nousrreqs
255 .pr_domain
= &inetdomain
,
256 .pr_protocol
= IPPROTO_AH
,
257 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
259 .pr_input
= ipsec4_common_input
,
262 .pr_ctloutput
= NULL
,
265 .pr_usrreqs
= &nousrreqs
269 .pr_domain
= &inetdomain
,
270 .pr_protocol
= IPPROTO_ESP
,
271 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
273 .pr_input
= ipsec4_common_input
,
276 .pr_ctloutput
= NULL
,
279 .pr_usrreqs
= &nousrreqs
283 .pr_domain
= &inetdomain
,
284 .pr_protocol
= IPPROTO_IPCOMP
,
285 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
287 .pr_input
= ipsec4_common_input
,
290 .pr_ctloutput
= NULL
,
293 .pr_usrreqs
= &nousrreqs
295 #endif /* FAST_IPSEC */
298 .pr_domain
= &inetdomain
,
299 .pr_protocol
= IPPROTO_IPV4
,
300 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
301 .pr_input
= encap4_input
,
304 .pr_ctloutput
= rip_ctloutput
,
307 .pr_init
= encap_init
,
308 .pr_usrreqs
= &rip_usrreqs
312 .pr_domain
= &inetdomain
,
313 .pr_protocol
= IPPROTO_MOBILE
,
314 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
316 .pr_input
= encap4_input
,
319 .pr_ctloutput
= rip_ctloutput
,
322 .pr_init
= encap_init
,
323 .pr_usrreqs
= &rip_usrreqs
327 .pr_domain
= &inetdomain
,
328 .pr_protocol
= IPPROTO_GRE
,
329 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
331 .pr_input
= encap4_input
,
334 .pr_ctloutput
= rip_ctloutput
,
337 .pr_init
= encap_init
,
338 .pr_usrreqs
= &rip_usrreqs
343 .pr_domain
= &inetdomain
,
344 .pr_protocol
= IPPROTO_IPV6
,
345 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
347 .pr_input
= encap4_input
,
350 .pr_ctloutput
= rip_ctloutput
,
353 .pr_init
= encap_init
,
354 .pr_usrreqs
= &rip_usrreqs
360 .pr_domain
= &inetdomain
,
361 .pr_protocol
= IPPROTO_DIVERT
,
362 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
364 .pr_input
= div_input
,
367 .pr_ctloutput
= ip_ctloutput
,
371 .pr_usrreqs
= &div_usrreqs
377 .pr_domain
= &inetdomain
,
378 .pr_protocol
= IPPROTO_PIM
,
379 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
381 .pr_input
= pim_input
,
384 .pr_ctloutput
= rip_ctloutput
,
387 .pr_usrreqs
= &rip_usrreqs
393 .pr_domain
= &inetdomain
,
394 .pr_protocol
= IPPROTO_PFSYNC
,
395 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
397 .pr_input
= pfsync_input
,
400 .pr_ctloutput
= rip_ctloutput
,
403 .pr_usrreqs
= &rip_usrreqs
409 .pr_domain
= &inetdomain
,
411 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
413 .pr_input
= rip_input
,
416 .pr_ctloutput
= rip_ctloutput
,
420 .pr_usrreqs
= &rip_usrreqs
425 .pr_domain
= &inetdomain
,
426 .pr_protocol
= IPPROTO_CARP
,
427 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_MPSAFE
,
429 .pr_input
= carp_proto_input
,
430 .pr_output
= rip_output
,
431 .pr_ctlinput
= carp_proto_ctlinput
,
432 .pr_ctloutput
= rip_ctloutput
,
434 .pr_ctlport
= cpu0_ctlport
,
435 .pr_usrreqs
= &rip_usrreqs
441 inetdomain_init(void)
446 struct domain inetdomain
= {
447 .dom_family
= AF_INET
,
448 .dom_name
= "internet",
449 .dom_init
= inetdomain_init
,
450 .dom_externalize
= NULL
,
452 .dom_protosw
= inetsw
,
453 .dom_protoswNPROTOSW
= &inetsw
[NELEM(inetsw
)],
454 .dom_next
= SLIST_ENTRY_INITIALIZER
,
455 .dom_rtattach
= in_inithead
,
457 .dom_maxrtkey
= sizeof(struct sockaddr_in
),
458 .dom_ifattach
= NULL
,
464 SYSCTL_NODE(_net
, PF_INET
, inet
, CTLFLAG_RW
, 0,
467 SYSCTL_NODE(_net_inet
, IPPROTO_IP
, ip
, CTLFLAG_RW
, 0, "IP");
468 SYSCTL_NODE(_net_inet
, IPPROTO_ICMP
, icmp
, CTLFLAG_RW
, 0, "ICMP");
469 SYSCTL_NODE(_net_inet
, IPPROTO_UDP
, udp
, CTLFLAG_RW
, 0, "UDP");
470 SYSCTL_NODE(_net_inet
, IPPROTO_TCP
, tcp
, CTLFLAG_RW
, 0, "TCP");
471 SYSCTL_NODE(_net_inet
, IPPROTO_IGMP
, igmp
, CTLFLAG_RW
, 0, "IGMP");
473 /* XXX no protocol # to use, pick something "reserved" */
474 SYSCTL_NODE(_net_inet
, 253, ipsec
, CTLFLAG_RW
, 0, "IPSEC");
475 SYSCTL_NODE(_net_inet
, IPPROTO_AH
, ah
, CTLFLAG_RW
, 0, "AH");
476 SYSCTL_NODE(_net_inet
, IPPROTO_ESP
, esp
, CTLFLAG_RW
, 0, "ESP");
477 SYSCTL_NODE(_net_inet
, IPPROTO_IPCOMP
, ipcomp
, CTLFLAG_RW
, 0, "IPCOMP");
478 SYSCTL_NODE(_net_inet
, IPPROTO_IPIP
, ipip
, CTLFLAG_RW
, 0, "IPIP");
481 SYSCTL_NODE(_net_inet
, IPPROTO_AH
, ipsec
, CTLFLAG_RW
, 0, "IPSEC");
483 #endif /* !FAST_IPSEC */
484 SYSCTL_NODE(_net_inet
, IPPROTO_RAW
, raw
, CTLFLAG_RW
, 0, "RAW");
486 SYSCTL_NODE(_net_inet
, IPPROTO_DIVERT
, divert
, CTLFLAG_RW
, 0, "DIVERT");
489 SYSCTL_NODE(_net_inet
, IPPROTO_PIM
, pim
, CTLFLAG_RW
, 0, "PIM");
492 SYSCTL_NODE(_net_inet
, IPPROTO_CARP
, carp
, CTLFLAG_RW
, 0, "CARP");