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
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12 * documentation and/or other materials provided with the distribution.
13 * 4. 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)
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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|PR_ASYNC_SEND,
129 .pr_input = udp_input,
131 .pr_ctlinput = udp_ctlinput,
132 .pr_ctloutput = ip_ctloutput,
134 .pr_ctlport = udp_ctlport,
136 .pr_usrreqs = &udp_usrreqs
139 .pr_type = SOCK_STREAM,
140 .pr_domain = &inetdomain,
141 .pr_protocol = IPPROTO_TCP,
142 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|
143 PR_MPSAFE|PR_ASYNC_SEND|PR_ASYNC_RCVD,
145 .pr_input = tcp_input,
147 .pr_ctlinput = tcp_ctlinput,
148 .pr_ctloutput = tcp_ctloutput,
150 .pr_ctlport = tcp_ctlport,
154 .pr_drain = tcp_drain,
155 .pr_usrreqs = &tcp_usrreqs
159 * Order is very important here, we add the good one in
160 * in this postion so it maps to the right ip_protox[]
161 * postion for SCTP. Don't move the one above below
162 * this one or IPv6/4 compatability will break
165 .pr_type = SOCK_DGRAM,
166 .pr_domain = &inetdomain,
167 .pr_protocol = IPPROTO_SCTP,
168 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
170 .pr_input = sctp_input,
172 .pr_ctlinput = sctp_ctlinput,
173 .pr_ctloutput = sctp_ctloutput,
175 .pr_ctlport = cpu0_ctlport,
176 .pr_init = sctp_init,
177 .pr_drain = sctp_drain,
178 .pr_usrreqs = &sctp_usrreqs
181 .pr_type = SOCK_SEQPACKET,
182 .pr_domain = &inetdomain,
183 .pr_protocol = IPPROTO_SCTP,
184 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
186 .pr_input = sctp_input,
188 .pr_ctlinput = sctp_ctlinput,
189 .pr_ctloutput = sctp_ctloutput,
191 .pr_ctlport = cpu0_ctlport,
192 .pr_drain = sctp_drain,
193 .pr_usrreqs = &sctp_usrreqs
197 .pr_type = SOCK_STREAM,
198 .pr_domain = &inetdomain,
199 .pr_protocol = IPPROTO_SCTP,
200 .pr_flags = PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD,
202 .pr_input = sctp_input,
204 .pr_ctlinput = sctp_ctlinput,
205 .pr_ctloutput = sctp_ctloutput,
207 .pr_ctlport = cpu0_ctlport,
208 .pr_drain = sctp_drain,
209 .pr_usrreqs = &sctp_usrreqs
214 .pr_domain = &inetdomain,
215 .pr_protocol = IPPROTO_RAW,
216 .pr_flags = PR_ATOMIC|PR_ADDR,
218 .pr_input = rip_input,
220 .pr_ctlinput = rip_ctlinput,
221 .pr_ctloutput = rip_ctloutput,
223 .pr_ctlport = cpu0_ctlport,
224 .pr_usrreqs = &rip_usrreqs
228 .pr_domain = &inetdomain,
229 .pr_protocol = IPPROTO_ICMP,
230 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR|PR_MPSAFE,
232 .pr_input = icmp_input,
235 .pr_ctloutput = rip_ctloutput,
237 .pr_usrreqs = &rip_usrreqs
241 .pr_domain = &inetdomain,
242 .pr_protocol = IPPROTO_IGMP,
243 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
245 .pr_input = igmp_input,
248 .pr_ctloutput = rip_ctloutput,
250 .pr_init = igmp_init,
251 .pr_fasttimo = igmp_fasttimo,
252 .pr_slowtimo = igmp_slowtimo,
254 .pr_usrreqs = &rip_usrreqs
258 .pr_domain = &inetdomain,
259 .pr_protocol = IPPROTO_RSVP,
260 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
262 .pr_input = rsvp_input,
265 .pr_ctloutput = rip_ctloutput,
267 .pr_usrreqs = &rip_usrreqs
272 .pr_domain = &inetdomain,
273 .pr_protocol = IPPROTO_AH,
274 .pr_flags = PR_ATOMIC|PR_ADDR,
276 .pr_input = ah4_input,
279 .pr_ctloutput = NULL,
282 .pr_usrreqs = &nousrreqs
287 .pr_domain = &inetdomain,
288 .pr_protocol = IPPROTO_ESP,
289 .pr_flags = PR_ATOMIC|PR_ADDR,
291 .pr_input = esp4_input,
294 .pr_ctloutput = NULL,
297 .pr_usrreqs = &nousrreqs
302 .pr_domain = &inetdomain,
303 .pr_protocol = IPPROTO_IPCOMP,
304 .pr_flags = PR_ATOMIC|PR_ADDR,
306 .pr_input = ipcomp4_input,
309 .pr_ctloutput = NULL,
312 .pr_usrreqs = &nousrreqs
318 .pr_domain = &inetdomain,
319 .pr_protocol = IPPROTO_AH,
320 .pr_flags = PR_ATOMIC|PR_ADDR,
322 .pr_input = ipsec4_common_input,
325 .pr_ctloutput = NULL,
328 .pr_usrreqs = &nousrreqs
332 .pr_domain = &inetdomain,
333 .pr_protocol = IPPROTO_ESP,
334 .pr_flags = PR_ATOMIC|PR_ADDR,
336 .pr_input = ipsec4_common_input,
339 .pr_ctloutput = NULL,
342 .pr_usrreqs = &nousrreqs
346 .pr_domain = &inetdomain,
347 .pr_protocol = IPPROTO_IPCOMP,
348 .pr_flags = PR_ATOMIC|PR_ADDR,
350 .pr_input = ipsec4_common_input,
353 .pr_ctloutput = NULL,
356 .pr_usrreqs = &nousrreqs
358 #endif /* FAST_IPSEC */
361 .pr_domain = &inetdomain,
362 .pr_protocol = IPPROTO_IPV4,
363 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
364 .pr_input = encap4_input,
367 .pr_ctloutput = rip_ctloutput,
370 .pr_init = encap_init,
371 .pr_usrreqs = &rip_usrreqs
375 .pr_domain = &inetdomain,
376 .pr_protocol = IPPROTO_MOBILE,
377 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
379 .pr_input = encap4_input,
382 .pr_ctloutput = rip_ctloutput,
385 .pr_init = encap_init,
386 .pr_usrreqs = &rip_usrreqs
390 .pr_domain = &inetdomain,
391 .pr_protocol = IPPROTO_GRE,
392 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
394 .pr_input = encap4_input,
397 .pr_ctloutput = rip_ctloutput,
400 .pr_init = encap_init,
401 .pr_usrreqs = &rip_usrreqs
406 .pr_domain = &inetdomain,
407 .pr_protocol = IPPROTO_IPV6,
408 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
410 .pr_input = encap4_input,
413 .pr_ctloutput = rip_ctloutput,
416 .pr_init = encap_init,
417 .pr_usrreqs = &rip_usrreqs
423 .pr_domain = &inetdomain,
424 .pr_protocol = IPPROTO_DIVERT,
425 .pr_flags = PR_ATOMIC|PR_ADDR,
427 .pr_input = div_input,
430 .pr_ctloutput = ip_ctloutput,
434 .pr_usrreqs = &div_usrreqs
440 .pr_domain = &inetdomain,
441 .pr_protocol = IPPROTO_IDP,
442 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
444 .pr_input = ipxip_input,
446 .pr_ctlinput = ipxip_ctlinput,
447 .pr_ctloutput = NULL,
449 .pr_ctlport = cpu0_ctlport,
450 .pr_usrreqs = &rip_usrreqs
456 .pr_domain = &inetdomain,
457 .pr_protocol = IPPROTO_PIM,
458 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
460 .pr_input = pim_input,
463 .pr_ctloutput = rip_ctloutput,
466 .pr_usrreqs = &rip_usrreqs
472 .pr_domain = &inetdomain,
473 .pr_protocol = IPPROTO_PFSYNC,
474 .pr_flags = PR_ATOMIC|PR_ADDR,
476 .pr_input = pfsync_input,
479 .pr_ctloutput = rip_ctloutput,
482 .pr_usrreqs = &rip_usrreqs
488 .pr_domain = &inetdomain,
490 .pr_flags = PR_ATOMIC|PR_ADDR,
492 .pr_input = rip_input,
495 .pr_ctloutput = rip_ctloutput,
499 .pr_usrreqs = &rip_usrreqs
504 .pr_domain = &inetdomain,
505 .pr_protocol = IPPROTO_CARP,
506 .pr_flags = PR_ATOMIC|PR_ADDR|PR_MPSAFE,
508 .pr_input = carp_proto_input,
509 .pr_output = rip_output,
510 .pr_ctlinput = carp_proto_ctlinput,
511 .pr_ctloutput = rip_ctloutput,
513 .pr_ctlport = cpu0_ctlport,
514 .pr_usrreqs = &rip_usrreqs
519 struct domain inetdomain = {
520 AF_INET, "internet", NULL, NULL, NULL,
521 inetsw, &inetsw[NELEM(inetsw)],
522 SLIST_ENTRY_INITIALIZER,
523 in_inithead, 32, sizeof(struct sockaddr_in),
528 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
531 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
532 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
533 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
534 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
535 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
537 /* XXX no protocol # to use, pick something "reserved" */
538 SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
539 SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
540 SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
541 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
542 SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
545 SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
547 #endif /* !FAST_IPSEC */
548 SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
550 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0, "DIVERT");
553 SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
556 SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP");