in_proto.c revision 9333
1/*
2 * Copyright (c) 1982, 1986, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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. 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
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	From: @(#)in_proto.c	8.1 (Berkeley) 6/10/93
34 *	$Id: in_proto.c,v 1.16 1995/06/13 17:51:09 wollman Exp $
35 */
36
37#include <sys/param.h>
38#include <sys/kernel.h>
39#include <sys/socket.h>
40#include <sys/protosw.h>
41#include <sys/domain.h>
42#include <sys/mbuf.h>
43#include <sys/queue.h>
44
45#include <net/if.h>
46#include <net/radix.h>
47#include <net/route.h>
48
49#include <netinet/in.h>
50#include <netinet/in_systm.h>
51#include <netinet/ip.h>
52#include <netinet/ip_var.h>
53#include <netinet/ip_icmp.h>
54#include <netinet/in_pcb.h>
55#include <netinet/igmp_var.h>
56#include <netinet/tcp.h>
57#include <netinet/tcp_fsm.h>
58#include <netinet/tcp_seq.h>
59#include <netinet/tcp_timer.h>
60#include <netinet/tcp_var.h>
61#include <netinet/tcpip.h>
62#ifdef TCPDEBUG
63#include <netinet/tcp_debug.h>
64#endif
65#include <netinet/udp.h>
66#include <netinet/udp_var.h>
67/*
68 * TCP/IP protocol family: IP, ICMP, UDP, TCP.
69 */
70
71#ifdef NSIP
72void	idpip_input(), nsip_ctlinput();
73#endif
74
75#ifdef TPIP
76void	tpip_input(), tpip_ctlinput(), tp_ctloutput();
77int	tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq();
78#endif
79
80#ifdef EON
81void	eoninput(), eonctlinput(), eonprotoinit();
82#endif /* EON */
83
84void rsvp_input(struct mbuf *, int);
85void ipip_input(struct mbuf *, int);
86
87extern	struct domain inetdomain;
88
89struct protosw inetsw[] = {
90{ 0,		&inetdomain,	0,		0,
91  0,		ip_output,	0,		0,
92  0,
93  ip_init,	0,		ip_slowtimo,	ip_drain,	ip_sysctl
94},
95{ SOCK_DGRAM,	&inetdomain,	IPPROTO_UDP,	PR_ATOMIC|PR_ADDR,
96  udp_input,	0,		udp_ctlinput,	ip_ctloutput,
97  udp_usrreq,
98  udp_init,	0,		0,		0,		udp_sysctl
99},
100{ SOCK_STREAM,	&inetdomain,	IPPROTO_TCP,
101	PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
102  tcp_input,	0,		tcp_ctlinput,	tcp_ctloutput,
103  tcp_usrreq,
104  tcp_init,	tcp_fasttimo,	tcp_slowtimo,	tcp_drain,	tcp_sysctl
105},
106{ SOCK_RAW,	&inetdomain,	IPPROTO_RAW,	PR_ATOMIC|PR_ADDR,
107  rip_input,	rip_output,	0,		rip_ctloutput,
108  rip_usrreq,
109  0,		0,		0,		0,
110},
111{ SOCK_RAW,	&inetdomain,	IPPROTO_ICMP,	PR_ATOMIC|PR_ADDR,
112  icmp_input,	rip_output,	0,		rip_ctloutput,
113  rip_usrreq,
114  0,		0,		0,		0,		icmp_sysctl
115},
116{ SOCK_RAW,	&inetdomain,	IPPROTO_IGMP,	PR_ATOMIC|PR_ADDR,
117  igmp_input,	rip_output,	0,		rip_ctloutput,
118  rip_usrreq,
119  igmp_init,	igmp_fasttimo,	igmp_slowtimo,	0,		igmp_sysctl
120},
121{ SOCK_RAW,	&inetdomain,	IPPROTO_RSVP,	PR_ATOMIC|PR_ADDR,
122  rsvp_input,	rip_output,	0,		rip_ctloutput,
123  rip_usrreq,
124  0,		0,		0,		0,
125},
126{ SOCK_RAW,	&inetdomain,	IPPROTO_IPIP,	PR_ATOMIC|PR_ADDR,
127  ipip_input,	rip_output, 	0,		rip_ctloutput,
128  rip_usrreq,
129  0,		0,		0,		0,
130},
131#ifdef TPIP
132{ SOCK_SEQPACKET,&inetdomain,	IPPROTO_TP,	PR_CONNREQUIRED|PR_WANTRCVD,
133  tpip_input,	0,		tpip_ctlinput,	tp_ctloutput,
134  tp_usrreq,
135  tp_init,	0,		tp_slowtimo,	tp_drain,
136},
137#endif
138/* EON (ISO CLNL over IP) */
139#ifdef EON
140{ SOCK_RAW,	&inetdomain,	IPPROTO_EON,	0,
141  eoninput,	0,		eonctlinput,		0,
142  0,
143  eonprotoinit,	0,		0,		0,
144},
145#endif
146#ifdef NSIP
147{ SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
148  idpip_input,	rip_output,	nsip_ctlinput,	0,
149  rip_usrreq,
150  0,		0,		0,		0,
151},
152#endif
153	/* raw wildcard */
154{ SOCK_RAW,	&inetdomain,	0,		PR_ATOMIC|PR_ADDR,
155  rip_input,	rip_output,	0,		rip_ctloutput,
156  rip_usrreq,
157  rip_init,	0,		0,		0,
158},
159};
160
161extern int in_inithead(void **, int);
162
163struct domain inetdomain =
164    { AF_INET, "internet", 0, 0, 0,
165      inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
166      in_inithead, 32, sizeof(struct sockaddr_in)
167    };
168
169DOMAIN_SET(inet);
170
171#include "imp.h"
172#if NIMP > 0
173extern	struct domain impdomain;
174int	rimp_output(), hostslowtimo();
175
176struct protosw impsw[] = {
177{ SOCK_RAW,	&impdomain,	0,		PR_ATOMIC|PR_ADDR,
178  0,		rimp_output,	0,		0,
179  rip_usrreq,
180  0,		0,		hostslowtimo,	0,
181},
182};
183
184struct domain impdomain =
185    { AF_IMPLINK, "imp", 0, 0, 0,
186      impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] };
187
188DOMAIN_SET(imp);
189
190#endif
191
192#if 0
193#include "hy.h"
194#if NHY > 0
195/*
196 * HYPERchannel protocol family: raw interface.
197 */
198int	rhy_output();
199extern	struct domain hydomain;
200
201struct protosw hysw[] = {
202{ SOCK_RAW,	&hydomain,	0,		PR_ATOMIC|PR_ADDR,
203  0,		rhy_output,	0,		0,
204  rip_usrreq,
205  0,		0,		0,		0,
206},
207};
208
209struct domain hydomain =
210    { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] };
211
212DOMAIN_SET(hy);
213#endif
214#endif
215