2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
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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 $
37 #include "opt_ipdivert.h"
39 #include "opt_mrouting.h"
40 #include "opt_ipsec.h"
41 #include "opt_inet6.h"
45 #include <sys/param.h>
46 #include <sys/kernel.h>
47 #include <sys/socket.h>
48 #include <sys/domain.h>
49 #include <sys/protosw.h>
50 #include <sys/queue.h>
51 #include <sys/sysctl.h>
54 #include <net/route.h>
56 #include <netinet/in.h>
57 #include <netinet/in_systm.h>
58 #include <netinet/ip.h>
59 #include <netinet/ip_var.h>
60 #include <netinet/ip_icmp.h>
61 #include <netinet/igmp_var.h>
63 #include <netinet/pim_var.h>
65 #include <netinet/tcp.h>
66 #include <netinet/tcp_timer.h>
67 #include <netinet/tcp_var.h>
68 #include <netinet/udp.h>
69 #include <netinet/udp_var.h>
70 #include <netinet/ip_encap.h>
72 #include <netinet/ip_divert.h>
76 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
80 #include <netinet6/ipsec.h>
81 #include <netinet6/ah.h>
83 #include <netinet6/esp.h>
85 #include <netinet6/ipcomp.h>
89 #include <netproto/ipsec/ipsec.h>
90 #endif /* FAST_IPSEC */
93 #include <netproto/ipx/ipx_ip.h>
97 #include <netinet/in_pcb.h>
98 #include <netinet/sctp_pcb.h>
99 #include <netinet/sctp.h>
100 #include <netinet/sctp_var.h>
103 #include <net/netisr.h> /* for cpu0_soport */
106 #include <netinet/ip_carp.h>
109 extern struct domain inetdomain;
110 static struct pr_usrreqs nousrreqs;
112 struct protosw inetsw[] = {
115 .pr_domain = &inetdomain,
123 .pr_slowtimo = ip_slowtimo,
124 .pr_drain = ip_drain,
125 .pr_usrreqs = &nousrreqs
128 .pr_type = SOCK_DGRAM,
129 .pr_domain = &inetdomain,
130 .pr_protocol = IPPROTO_UDP,
131 .pr_flags = PR_ATOMIC|PR_ADDR|PR_MPSAFE,
133 .pr_input = udp_input,
135 .pr_ctlinput = udp_ctlinput,
136 .pr_ctloutput = ip_ctloutput,
138 .pr_ctlport = udp_ctlport,
140 .pr_usrreqs = &udp_usrreqs
143 .pr_type = SOCK_STREAM,
144 .pr_domain = &inetdomain,
145 .pr_protocol = IPPROTO_TCP,
146 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_MPSAFE,
148 .pr_input = tcp_input,
150 .pr_ctlinput = tcp_ctlinput,
151 .pr_ctloutput = tcp_ctloutput,
153 .pr_ctlport = tcp_ctlport,
156 .pr_slowtimo = tcp_slowtimo,
157 .pr_drain = tcp_drain,
158 .pr_usrreqs = &tcp_usrreqs
162 * Order is very important here, we add the good one in
163 * in this postion so it maps to the right ip_protox[]
164 * postion for SCTP. Don't move the one above below
165 * this one or IPv6/4 compatability will break
168 .pr_type = SOCK_DGRAM,
169 .pr_domain = &inetdomain,
170 .pr_protocol = IPPROTO_SCTP,
171 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
173 .pr_input = sctp_input,
175 .pr_ctlinput = sctp_ctlinput,
176 .pr_ctloutput = sctp_ctloutput,
178 .pr_ctlport = cpu0_ctlport,
179 .pr_init = sctp_init,
180 .pr_drain = sctp_drain,
181 .pr_usrreqs = &sctp_usrreqs
184 .pr_type = SOCK_SEQPACKET,
185 .pr_domain = &inetdomain,
186 .pr_protocol = IPPROTO_SCTP,
187 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD,
189 .pr_input = sctp_input,
191 .pr_ctlinput = sctp_ctlinput,
192 .pr_ctloutput = sctp_ctloutput,
194 .pr_ctlport = cpu0_ctlport,
195 .pr_drain = sctp_drain,
196 .pr_usrreqs = &sctp_usrreqs
200 .pr_type = SOCK_STREAM,
201 .pr_domain = &inetdomain,
202 .pr_protocol = IPPROTO_SCTP,
203 .pr_flags = PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD,
205 .pr_input = sctp_input,
207 .pr_ctlinput = sctp_ctlinput,
208 .pr_ctloutput = sctp_ctloutput,
210 .pr_ctlport = cpu0_ctlport,
211 .pr_drain = sctp_drain,
212 .pr_usrreqs = &sctp_usrreqs
217 .pr_domain = &inetdomain,
218 .pr_protocol = IPPROTO_RAW,
219 .pr_flags = PR_ATOMIC|PR_ADDR,
221 .pr_input = rip_input,
223 .pr_ctlinput = rip_ctlinput,
224 .pr_ctloutput = rip_ctloutput,
226 .pr_ctlport = cpu0_ctlport,
227 .pr_usrreqs = &rip_usrreqs
231 .pr_domain = &inetdomain,
232 .pr_protocol = IPPROTO_ICMP,
233 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
235 .pr_input = icmp_input,
238 .pr_ctloutput = rip_ctloutput,
240 .pr_usrreqs = &rip_usrreqs
244 .pr_domain = &inetdomain,
245 .pr_protocol = IPPROTO_IGMP,
246 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
248 .pr_input = igmp_input,
251 .pr_ctloutput = rip_ctloutput,
253 .pr_init = igmp_init,
254 .pr_fasttimo = igmp_fasttimo,
255 .pr_slowtimo = igmp_slowtimo,
257 .pr_usrreqs = &rip_usrreqs
261 .pr_domain = &inetdomain,
262 .pr_protocol = IPPROTO_RSVP,
263 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
265 .pr_input = rsvp_input,
268 .pr_ctloutput = rip_ctloutput,
270 .pr_usrreqs = &rip_usrreqs
275 .pr_domain = &inetdomain,
276 .pr_protocol = IPPROTO_AH,
277 .pr_flags = PR_ATOMIC|PR_ADDR,
279 .pr_input = ah4_input,
282 .pr_ctloutput = NULL,
285 .pr_usrreqs = &nousrreqs
290 .pr_domain = &inetdomain,
291 .pr_protocol = IPPROTO_ESP,
292 .pr_flags = PR_ATOMIC|PR_ADDR,
294 .pr_input = esp4_input,
297 .pr_ctloutput = NULL,
300 .pr_usrreqs = &nousrreqs
305 .pr_domain = &inetdomain,
306 .pr_protocol = IPPROTO_IPCOMP,
307 .pr_flags = PR_ATOMIC|PR_ADDR,
309 .pr_input = ipcomp4_input,
312 .pr_ctloutput = NULL,
315 .pr_usrreqs = &nousrreqs
321 .pr_domain = &inetdomain,
322 .pr_protocol = IPPROTO_AH,
323 .pr_flags = PR_ATOMIC|PR_ADDR,
325 .pr_input = ipsec4_common_input,
328 .pr_ctloutput = NULL,
331 .pr_usrreqs = &nousrreqs
335 .pr_domain = &inetdomain,
336 .pr_protocol = IPPROTO_ESP,
337 .pr_flags = PR_ATOMIC|PR_ADDR,
339 .pr_input = ipsec4_common_input,
342 .pr_ctloutput = NULL,
345 .pr_usrreqs = &nousrreqs
349 .pr_domain = &inetdomain,
350 .pr_protocol = IPPROTO_IPCOMP,
351 .pr_flags = PR_ATOMIC|PR_ADDR,
353 .pr_input = ipsec4_common_input,
356 .pr_ctloutput = NULL,
359 .pr_usrreqs = &nousrreqs
361 #endif /* FAST_IPSEC */
364 .pr_domain = &inetdomain,
365 .pr_protocol = IPPROTO_IPV4,
366 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
367 .pr_input = encap4_input,
370 .pr_ctloutput = rip_ctloutput,
373 .pr_init = encap_init,
374 .pr_usrreqs = &rip_usrreqs
378 .pr_domain = &inetdomain,
379 .pr_protocol = IPPROTO_MOBILE,
380 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
382 .pr_input = encap4_input,
385 .pr_ctloutput = rip_ctloutput,
388 .pr_init = encap_init,
389 .pr_usrreqs = &rip_usrreqs
393 .pr_domain = &inetdomain,
394 .pr_protocol = IPPROTO_GRE,
395 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
397 .pr_input = encap4_input,
400 .pr_ctloutput = rip_ctloutput,
403 .pr_init = encap_init,
404 .pr_usrreqs = &rip_usrreqs
409 .pr_domain = &inetdomain,
410 .pr_protocol = IPPROTO_IPV6,
411 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
413 .pr_input = encap4_input,
416 .pr_ctloutput = rip_ctloutput,
419 .pr_init = encap_init,
420 .pr_usrreqs = &rip_usrreqs
426 .pr_domain = &inetdomain,
427 .pr_protocol = IPPROTO_DIVERT,
428 .pr_flags = PR_ATOMIC|PR_ADDR,
430 .pr_input = div_input,
433 .pr_ctloutput = ip_ctloutput,
437 .pr_usrreqs = &div_usrreqs
443 .pr_domain = &inetdomain,
444 .pr_protocol = IPPROTO_IDP,
445 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
447 .pr_input = ipxip_input,
449 .pr_ctlinput = ipxip_ctlinput,
450 .pr_ctloutput = NULL,
452 .pr_ctlport = cpu0_ctlport,
453 .pr_usrreqs = &rip_usrreqs
459 .pr_domain = &inetdomain,
460 .pr_protocol = IPPROTO_PIM,
461 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
463 .pr_input = pim_input,
466 .pr_ctloutput = rip_ctloutput,
469 .pr_usrreqs = &rip_usrreqs
475 .pr_domain = &inetdomain,
476 .pr_protocol = IPPROTO_PFSYNC,
477 .pr_flags = PR_ATOMIC|PR_ADDR,
479 .pr_input = pfsync_input,
482 .pr_ctloutput = rip_ctloutput,
485 .pr_usrreqs = &rip_usrreqs
491 .pr_domain = &inetdomain,
493 .pr_flags = PR_ATOMIC|PR_ADDR,
495 .pr_input = rip_input,
498 .pr_ctloutput = rip_ctloutput,
502 .pr_usrreqs = &rip_usrreqs
507 .pr_domain = &inetdomain,
508 .pr_protocol = IPPROTO_CARP,
509 .pr_flags = PR_ATOMIC|PR_ADDR,
511 .pr_input = carp_input,
512 .pr_output = rip_output,
514 .pr_ctloutput = rip_ctloutput,
517 .pr_usrreqs = &rip_usrreqs
522 struct domain inetdomain = {
523 AF_INET, "internet", NULL, NULL, NULL,
524 inetsw, &inetsw[NELEM(inetsw)],
525 SLIST_ENTRY_INITIALIZER,
526 in_inithead, 32, sizeof(struct sockaddr_in),
531 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
534 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
535 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
536 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
537 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
538 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
540 /* XXX no protocol # to use, pick something "reserved" */
541 SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
542 SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
543 SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
544 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
545 SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
548 SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
550 #endif /* !FAST_IPSEC */
551 SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
553 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0, "DIVERT");
556 SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
559 SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP");