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"
35 #include "opt_mrouting.h"
36 #include "opt_ipsec.h"
37 #include "opt_inet6.h"
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/socket.h>
44 #include <sys/domain.h>
45 #include <sys/protosw.h>
46 #include <sys/queue.h>
47 #include <sys/sysctl.h>
50 #include <net/route.h>
52 #include <netinet/in.h>
53 #include <netinet/in_systm.h>
54 #include <netinet/ip.h>
55 #include <netinet/ip_var.h>
56 #include <netinet/ip_icmp.h>
57 #include <netinet/igmp_var.h>
59 #include <netinet/pim_var.h>
61 #include <netinet/tcp.h>
62 #include <netinet/tcp_timer.h>
63 #include <netinet/tcp_var.h>
64 #include <netinet/udp.h>
65 #include <netinet/udp_var.h>
66 #include <netinet/ip_encap.h>
68 #include <netinet/ip_divert.h>
72 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
76 #include <netinet6/ipsec.h>
77 #include <netinet6/ah.h>
79 #include <netinet6/esp.h>
81 #include <netinet6/ipcomp.h>
85 #include <netproto/ipsec/ipsec.h>
86 #endif /* FAST_IPSEC */
89 #include <netproto/ipx/ipx_ip.h>
93 #include <netinet/in_pcb.h>
94 #include <netinet/sctp_pcb.h>
95 #include <netinet/sctp.h>
96 #include <netinet/sctp_var.h>
99 #include <net/netisr.h> /* for cpu0_soport */
102 #include <netinet/ip_carp.h>
105 extern struct domain inetdomain;
106 static struct pr_usrreqs nousrreqs;
108 struct protosw inetsw[] = {
111 .pr_domain = &inetdomain,
119 .pr_slowtimo = ip_slowtimo,
120 .pr_drain = ip_drain,
121 .pr_usrreqs = &nousrreqs
124 .pr_type = SOCK_DGRAM,
125 .pr_domain = &inetdomain,
126 .pr_protocol = IPPROTO_UDP,
127 .pr_flags = PR_ATOMIC|PR_ADDR|PR_MPSAFE|
128 PR_ASYNC_SEND|PR_ASEND_HOLDTD,
130 .pr_input = udp_input,
132 .pr_ctlinput = udp_ctlinput,
133 .pr_ctloutput = ip_ctloutput,
135 .pr_ctlport = udp_ctlport,
137 .pr_usrreqs = &udp_usrreqs
140 .pr_type = SOCK_STREAM,
141 .pr_domain = &inetdomain,
142 .pr_protocol = IPPROTO_TCP,
143 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|
144 PR_MPSAFE|PR_ASYNC_SEND|PR_ASYNC_RCVD,
146 .pr_input = tcp_input,
148 .pr_ctlinput = tcp_ctlinput,
149 .pr_ctloutput = tcp_ctloutput,
151 .pr_ctlport = tcp_ctlport,
155 .pr_drain = tcp_drain,
156 .pr_usrreqs = &tcp_usrreqs
160 * Order is very important here, we add the good one in
161 * in this postion so it maps to the right ip_protox[]
162 * postion for SCTP. Don't move the one above below
163 * this one or IPv6/4 compatability will break
166 .pr_type = SOCK_DGRAM,
167 .pr_domain = &inetdomain,
168 .pr_protocol = IPPROTO_SCTP,
169 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
171 .pr_input = sctp_input,
173 .pr_ctlinput = sctp_ctlinput,
174 .pr_ctloutput = sctp_ctloutput,
176 .pr_ctlport = cpu0_ctlport,
177 .pr_init = sctp_init,
178 .pr_drain = sctp_drain,
179 .pr_usrreqs = &sctp_usrreqs
182 .pr_type = SOCK_SEQPACKET,
183 .pr_domain = &inetdomain,
184 .pr_protocol = IPPROTO_SCTP,
185 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
187 .pr_input = sctp_input,
189 .pr_ctlinput = sctp_ctlinput,
190 .pr_ctloutput = sctp_ctloutput,
192 .pr_ctlport = cpu0_ctlport,
193 .pr_drain = sctp_drain,
194 .pr_usrreqs = &sctp_usrreqs
198 .pr_type = SOCK_STREAM,
199 .pr_domain = &inetdomain,
200 .pr_protocol = IPPROTO_SCTP,
201 .pr_flags = PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD,
203 .pr_input = sctp_input,
205 .pr_ctlinput = sctp_ctlinput,
206 .pr_ctloutput = sctp_ctloutput,
208 .pr_ctlport = cpu0_ctlport,
209 .pr_drain = sctp_drain,
210 .pr_usrreqs = &sctp_usrreqs
215 .pr_domain = &inetdomain,
216 .pr_protocol = IPPROTO_RAW,
217 .pr_flags = PR_ATOMIC|PR_ADDR,
219 .pr_input = rip_input,
221 .pr_ctlinput = rip_ctlinput,
222 .pr_ctloutput = rip_ctloutput,
224 .pr_ctlport = cpu0_ctlport,
225 .pr_usrreqs = &rip_usrreqs
229 .pr_domain = &inetdomain,
230 .pr_protocol = IPPROTO_ICMP,
231 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR|PR_MPSAFE,
233 .pr_input = icmp_input,
236 .pr_ctloutput = rip_ctloutput,
238 .pr_usrreqs = &rip_usrreqs
242 .pr_domain = &inetdomain,
243 .pr_protocol = IPPROTO_IGMP,
244 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
246 .pr_input = igmp_input,
249 .pr_ctloutput = rip_ctloutput,
251 .pr_init = igmp_init,
252 .pr_fasttimo = igmp_fasttimo,
253 .pr_slowtimo = igmp_slowtimo,
255 .pr_usrreqs = &rip_usrreqs
259 .pr_domain = &inetdomain,
260 .pr_protocol = IPPROTO_RSVP,
261 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
263 .pr_input = rsvp_input,
266 .pr_ctloutput = rip_ctloutput,
268 .pr_usrreqs = &rip_usrreqs
273 .pr_domain = &inetdomain,
274 .pr_protocol = IPPROTO_AH,
275 .pr_flags = PR_ATOMIC|PR_ADDR,
277 .pr_input = ah4_input,
280 .pr_ctloutput = NULL,
283 .pr_usrreqs = &nousrreqs
288 .pr_domain = &inetdomain,
289 .pr_protocol = IPPROTO_ESP,
290 .pr_flags = PR_ATOMIC|PR_ADDR,
292 .pr_input = esp4_input,
295 .pr_ctloutput = NULL,
298 .pr_usrreqs = &nousrreqs
303 .pr_domain = &inetdomain,
304 .pr_protocol = IPPROTO_IPCOMP,
305 .pr_flags = PR_ATOMIC|PR_ADDR,
307 .pr_input = ipcomp4_input,
310 .pr_ctloutput = NULL,
313 .pr_usrreqs = &nousrreqs
319 .pr_domain = &inetdomain,
320 .pr_protocol = IPPROTO_AH,
321 .pr_flags = PR_ATOMIC|PR_ADDR,
323 .pr_input = ipsec4_common_input,
326 .pr_ctloutput = NULL,
329 .pr_usrreqs = &nousrreqs
333 .pr_domain = &inetdomain,
334 .pr_protocol = IPPROTO_ESP,
335 .pr_flags = PR_ATOMIC|PR_ADDR,
337 .pr_input = ipsec4_common_input,
340 .pr_ctloutput = NULL,
343 .pr_usrreqs = &nousrreqs
347 .pr_domain = &inetdomain,
348 .pr_protocol = IPPROTO_IPCOMP,
349 .pr_flags = PR_ATOMIC|PR_ADDR,
351 .pr_input = ipsec4_common_input,
354 .pr_ctloutput = NULL,
357 .pr_usrreqs = &nousrreqs
359 #endif /* FAST_IPSEC */
362 .pr_domain = &inetdomain,
363 .pr_protocol = IPPROTO_IPV4,
364 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
365 .pr_input = encap4_input,
368 .pr_ctloutput = rip_ctloutput,
371 .pr_init = encap_init,
372 .pr_usrreqs = &rip_usrreqs
376 .pr_domain = &inetdomain,
377 .pr_protocol = IPPROTO_MOBILE,
378 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
380 .pr_input = encap4_input,
383 .pr_ctloutput = rip_ctloutput,
386 .pr_init = encap_init,
387 .pr_usrreqs = &rip_usrreqs
391 .pr_domain = &inetdomain,
392 .pr_protocol = IPPROTO_GRE,
393 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
395 .pr_input = encap4_input,
398 .pr_ctloutput = rip_ctloutput,
401 .pr_init = encap_init,
402 .pr_usrreqs = &rip_usrreqs
407 .pr_domain = &inetdomain,
408 .pr_protocol = IPPROTO_IPV6,
409 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
411 .pr_input = encap4_input,
414 .pr_ctloutput = rip_ctloutput,
417 .pr_init = encap_init,
418 .pr_usrreqs = &rip_usrreqs
424 .pr_domain = &inetdomain,
425 .pr_protocol = IPPROTO_DIVERT,
426 .pr_flags = PR_ATOMIC|PR_ADDR,
428 .pr_input = div_input,
431 .pr_ctloutput = ip_ctloutput,
435 .pr_usrreqs = &div_usrreqs
441 .pr_domain = &inetdomain,
442 .pr_protocol = IPPROTO_IDP,
443 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
445 .pr_input = ipxip_input,
447 .pr_ctlinput = ipxip_ctlinput,
448 .pr_ctloutput = NULL,
450 .pr_ctlport = cpu0_ctlport,
451 .pr_usrreqs = &rip_usrreqs
457 .pr_domain = &inetdomain,
458 .pr_protocol = IPPROTO_PIM,
459 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
461 .pr_input = pim_input,
464 .pr_ctloutput = rip_ctloutput,
467 .pr_usrreqs = &rip_usrreqs
473 .pr_domain = &inetdomain,
474 .pr_protocol = IPPROTO_PFSYNC,
475 .pr_flags = PR_ATOMIC|PR_ADDR,
477 .pr_input = pfsync_input,
480 .pr_ctloutput = rip_ctloutput,
483 .pr_usrreqs = &rip_usrreqs
489 .pr_domain = &inetdomain,
491 .pr_flags = PR_ATOMIC|PR_ADDR,
493 .pr_input = rip_input,
496 .pr_ctloutput = rip_ctloutput,
500 .pr_usrreqs = &rip_usrreqs
505 .pr_domain = &inetdomain,
506 .pr_protocol = IPPROTO_CARP,
507 .pr_flags = PR_ATOMIC|PR_ADDR|PR_MPSAFE,
509 .pr_input = carp_proto_input,
510 .pr_output = rip_output,
511 .pr_ctlinput = carp_proto_ctlinput,
512 .pr_ctloutput = rip_ctloutput,
514 .pr_ctlport = cpu0_ctlport,
515 .pr_usrreqs = &rip_usrreqs
520 struct domain inetdomain = {
521 AF_INET, "internet", NULL, NULL, NULL,
522 inetsw, &inetsw[NELEM(inetsw)],
523 SLIST_ENTRY_INITIALIZER,
524 in_inithead, 32, sizeof(struct sockaddr_in),
529 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
532 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
533 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
534 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
535 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
536 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
538 /* XXX no protocol # to use, pick something "reserved" */
539 SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
540 SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
541 SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
542 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
543 SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
546 SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
548 #endif /* !FAST_IPSEC */
549 SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
551 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0, "DIVERT");
554 SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
557 SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP");