in_proto.c revision 11819 
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 *	@(#)in_proto.c	8.2 (Berkeley) 2/9/95
34 *	$Id: in_proto.c,v 1.18 1995/09/21 17:58:07 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 IPXIP
72void	ipxip_input(), ipxip_ctlinput();
73#endif
74
75#ifdef NSIP
76void	idpip_input(), nsip_ctlinput();
77#endif
78
79#ifdef TPIP
80void	tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain();
81int	tp_ctloutput(), tp_usrreq();
82#endif
83
84#ifdef EON
85void	eoninput(), eonctlinput(), eonprotoinit();
86#endif /* EON */
87
88void rsvp_input(struct mbuf *, int);
89void ipip_input(struct mbuf *, int);
90
91extern	struct domain inetdomain;
92
93struct protosw inetsw[] = {
94{ 0,		&inetdomain,	0,		0,
95  0,		ip_output,	0,		0,
96  0,
97  ip_init,	0,		ip_slowtimo,	ip_drain,	ip_sysctl
98},
99{ SOCK_DGRAM,	&inetdomain,	IPPROTO_UDP,	PR_ATOMIC|PR_ADDR,
100  udp_input,	0,		udp_ctlinput,	ip_ctloutput,
101  udp_usrreq,
102  udp_init,	0,		0,		0,		udp_sysctl
103},
104{ SOCK_STREAM,	&inetdomain,	IPPROTO_TCP,
105	PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
106  tcp_input,	0,		tcp_ctlinput,	tcp_ctloutput,
107  tcp_usrreq,
108  tcp_init,	tcp_fasttimo,	tcp_slowtimo,	tcp_drain,	tcp_sysctl
109},
110{ SOCK_RAW,	&inetdomain,	IPPROTO_RAW,	PR_ATOMIC|PR_ADDR,
111  rip_input,	rip_output,	0,		rip_ctloutput,
112  rip_usrreq,
113  0,		0,		0,		0,
114},
115{ SOCK_RAW,	&inetdomain,	IPPROTO_ICMP,	PR_ATOMIC|PR_ADDR,
116  icmp_input,	rip_output,	0,		rip_ctloutput,
117  rip_usrreq,
118  0,		0,		0,		0,		icmp_sysctl
119},
120{ SOCK_RAW,	&inetdomain,	IPPROTO_IGMP,	PR_ATOMIC|PR_ADDR,
121  igmp_input,	rip_output,	0,		rip_ctloutput,
122  rip_usrreq,
123  igmp_init,	igmp_fasttimo,	igmp_slowtimo,	0,		igmp_sysctl
124},
125{ SOCK_RAW,	&inetdomain,	IPPROTO_RSVP,	PR_ATOMIC|PR_ADDR,
126  rsvp_input,	rip_output,	0,		rip_ctloutput,
127  rip_usrreq,
128  0,		0,		0,		0,
129},
130{ SOCK_RAW,	&inetdomain,	IPPROTO_IPIP,	PR_ATOMIC|PR_ADDR,
131  ipip_input,	rip_output, 	0,		rip_ctloutput,
132  rip_usrreq,
133  0,		0,		0,		0,
134},
135#ifdef TPIP
136{ SOCK_SEQPACKET,&inetdomain,	IPPROTO_TP,	PR_CONNREQUIRED|PR_WANTRCVD,
137  tpip_input,	0,		tpip_ctlinput,	tp_ctloutput,
138  tp_usrreq,
139  tp_init,	0,		tp_slowtimo,	tp_drain,
140},
141#endif
142/* EON (ISO CLNL over IP) */
143#ifdef EON
144{ SOCK_RAW,	&inetdomain,	IPPROTO_EON,	0,
145  eoninput,	0,		eonctlinput,		0,
146  0,
147  eonprotoinit,	0,		0,		0,
148},
149#endif
150#ifdef IPXIP
151{ SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
152  ipxip_input,	rip_output,	ipxip_ctlinput,	0,
153  rip_usrreq,
154  0,		0,		0,		0,
155},
156#endif
157#ifdef NSIP
158{ SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
159  idpip_input,	rip_output,	nsip_ctlinput,	0,
160  rip_usrreq,
161  0,		0,		0,		0,
162},
163#endif
164	/* raw wildcard */
165{ SOCK_RAW,	&inetdomain,	0,		PR_ATOMIC|PR_ADDR,
166  rip_input,	rip_output,	0,		rip_ctloutput,
167  rip_usrreq,
168  rip_init,	0,		0,		0,
169},
170};
171
172extern int in_inithead(void **, int);
173
174struct domain inetdomain =
175    { AF_INET, "internet", 0, 0, 0,
176      inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
177      in_inithead, 32, sizeof(struct sockaddr_in)
178    };
179
180DOMAIN_SET(inet);
181
182#include "imp.h"
183#if NIMP > 0
184extern	struct domain impdomain;
185int	rimp_output(), hostslowtimo();
186
187struct protosw impsw[] = {
188{ SOCK_RAW,	&impdomain,	0,		PR_ATOMIC|PR_ADDR,
189  0,		rimp_output,	0,		0,
190  rip_usrreq,
191  0,		0,		hostslowtimo,	0,
192},
193};
194
195struct domain impdomain =
196    { AF_IMPLINK, "imp", 0, 0, 0,
197      impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] };
198
199DOMAIN_SET(imp);
200
201#endif
202
203#if 0
204#include "hy.h"
205#if NHY > 0
206/*
207 * HYPERchannel protocol family: raw interface.
208 */
209int	rhy_output();
210extern	struct domain hydomain;
211
212struct protosw hysw[] = {
213{ SOCK_RAW,	&hydomain,	0,		PR_ATOMIC|PR_ADDR,
214  0,		rhy_output,	0,		0,
215  rip_usrreq,
216  0,		0,		0,		0,
217},
218};
219
220struct domain hydomain =
221    { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] };
222
223DOMAIN_SET(hy);
224#endif
225#endif
226