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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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
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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 $
35 * $DragonFly: src/sys/netinet/in_proto.c,v 1.15 2007/12/19 11:00:22 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>
75 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
79 #include <netinet6/ipsec.h>
80 #include <netinet6/ah.h>
82 #include <netinet6/esp.h>
84 #include <netinet6/ipcomp.h>
88 #include <netproto/ipsec/ipsec.h>
89 #endif /* FAST_IPSEC */
92 #include <netproto/ipx/ipx_ip.h>
97 #include <netns/ns_if.h>
101 #include <netinet/in_pcb.h>
102 #include <netinet/sctp_pcb.h>
103 #include <netinet/sctp.h>
104 #include <netinet/sctp_var.h>
107 #include <net/netisr.h> /* for cpu0_soport */
110 #include <netinet/ip_carp.h>
113 extern struct domain inetdomain;
114 static struct pr_usrreqs nousrreqs;
116 struct protosw inetsw[] = {
117 { 0, &inetdomain, 0, 0,
120 ip_init, 0, ip_slowtimo, ip_drain,
123 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
124 udp_input, 0, udp_ctlinput, ip_ctloutput,
129 { SOCK_STREAM, &inetdomain, IPPROTO_TCP,
130 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
131 tcp_input, 0, tcp_ctlinput, tcp_ctloutput,
133 tcp_init, 0, tcp_slowtimo, tcp_drain,
138 * Order is very important here, we add the good one in
139 * in this postion so it maps to the right ip_protox[]
140 * postion for SCTP. Don't move the one above below
141 * this one or IPv6/4 compatability will break
143 { SOCK_DGRAM, &inetdomain, IPPROTO_SCTP, PR_ADDR_OPT|PR_WANTRCVD,
144 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
146 sctp_init, 0, 0, sctp_drain,
149 { SOCK_SEQPACKET,&inetdomain, IPPROTO_SCTP, PR_ADDR_OPT|PR_WANTRCVD,
150 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
156 { SOCK_STREAM, &inetdomain, IPPROTO_SCTP, PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD,
157 sctp_input, 0, sctp_ctlinput, sctp_ctloutput,
163 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
164 rip_input, 0, rip_ctlinput, rip_ctloutput,
169 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
170 icmp_input, 0, 0, rip_ctloutput,
175 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
176 igmp_input, 0, 0, rip_ctloutput,
178 igmp_init, igmp_fasttimo, igmp_slowtimo, 0,
181 { SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
182 rsvp_input, 0, 0, rip_ctloutput,
188 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
195 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
202 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
203 ipcomp4_input, 0, 0, 0,
210 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
211 ipsec4_common_input, 0, 0, 0,
216 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
217 ipsec4_common_input, 0, 0, 0,
222 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
223 ipsec4_common_input, 0, 0, 0,
228 #endif /* FAST_IPSEC */
229 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
230 encap4_input, 0, 0, rip_ctloutput,
235 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
236 encap4_input, 0, 0, rip_ctloutput,
241 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
242 encap4_input, 0, 0, rip_ctloutput,
248 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
249 encap4_input, 0, 0, rip_ctloutput,
256 { SOCK_RAW, &inetdomain, IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR,
257 div_input, 0, 0, ip_ctloutput,
264 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
265 ipxip_input, 0, ipxip_ctlinput, 0,
272 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
273 idpip_input, 0, nsip_ctlinput, 0,
280 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
281 pim_input, 0, 0, rip_ctloutput,
288 { SOCK_RAW, &inetdomain, IPPROTO_PFSYNC, PR_ATOMIC|PR_ADDR,
289 pfsync_input, 0, 0, rip_ctloutput,
296 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR,
297 rip_input, 0, 0, rip_ctloutput,
304 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR,
305 carp_input, rip_output, 0, rip_ctloutput,
314 struct domain inetdomain = {
315 AF_INET, "internet", NULL, NULL, NULL,
316 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])],
317 SLIST_ENTRY_INITIALIZER,
318 in_inithead, 32, sizeof(struct sockaddr_in),
323 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
326 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
327 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
328 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
329 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
330 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
332 /* XXX no protocol # to use, pick something "reserved" */
333 SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
334 SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
335 SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
336 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
337 SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
340 SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
342 #endif /* !FAST_IPSEC */
343 SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
345 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0, "DIVERT");
348 SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
351 SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP");