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in_proto.c revision 1.2 
      1 /*
      2  * Copyright (c) 1982, 1986 Regents of the University of California.
      3  * 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	7.5 (Berkeley) 6/28/90
     34  */
     35 
     36 #include "param.h"
     37 #include "socket.h"
     38 #include "protosw.h"
     39 #include "domain.h"
     40 #include "mbuf.h"
     41 
     42 #include "in.h"
     43 #include "in_systm.h"
     44 
     45 /*
     46  * TCP/IP protocol family: IP, ICMP, UDP, TCP.
     47  */
     48 int	ip_output(),ip_ctloutput();
     49 int	ip_init(),ip_slowtimo(),ip_drain();
     50 int	icmp_input();
     51 int	udp_input(),udp_ctlinput();
     52 int	udp_usrreq();
     53 int	udp_init();
     54 int	tcp_input(),tcp_ctlinput();
     55 int	tcp_usrreq(),tcp_ctloutput();
     56 int	tcp_init(),tcp_fasttimo(),tcp_slowtimo(),tcp_drain();
     57 int	rip_input(),rip_output(),rip_ctloutput(), rip_usrreq();
     58 /*
     59  * IMP protocol family: raw interface.
     60  * Using the raw interface entry to get the timer routine
     61  * in is a kludge.
     62  */
     63 #ifdef IMP
     64 int	rimp_output(), hostslowtimo();
     65 #endif
     66 
     67 #ifdef NSIP
     68 int	idpip_input(), nsip_ctlinput();
     69 #endif
     70 
     71 #ifdef TPIP
     72 int	tpip_input(), tpip_ctlinput(), tp_ctloutput(), tp_usrreq();
     73 int	tp_init(), tp_slowtimo(), tp_drain();
     74 #endif
     75 
     76 #ifdef EON
     77 int	eoninput(), eonctlinput(), eonprotoinit();
     78 #endif EON
     79 
     80 extern	struct domain inetdomain;
     81 
     82 struct protosw inetsw[] = {
     83 { 0,		&inetdomain,	0,		0,
     84   0,		ip_output,	0,		0,
     85   0,
     86   ip_init,	0,		ip_slowtimo,	ip_drain,
     87 },
     88 { SOCK_DGRAM,	&inetdomain,	IPPROTO_UDP,	PR_ATOMIC|PR_ADDR,
     89   udp_input,	0,		udp_ctlinput,	ip_ctloutput,
     90   udp_usrreq,
     91   udp_init,	0,		0,		0,
     92 },
     93 { SOCK_STREAM,	&inetdomain,	IPPROTO_TCP,	PR_CONNREQUIRED|PR_WANTRCVD,
     94   tcp_input,	0,		tcp_ctlinput,	tcp_ctloutput,
     95   tcp_usrreq,
     96   tcp_init,	tcp_fasttimo,	tcp_slowtimo,	tcp_drain,
     97 },
     98 { SOCK_RAW,	&inetdomain,	IPPROTO_RAW,	PR_ATOMIC|PR_ADDR,
     99   rip_input,	rip_output,	0,		rip_ctloutput,
    100   rip_usrreq,
    101   0,		0,		0,		0,
    102 },
    103 { SOCK_RAW,	&inetdomain,	IPPROTO_ICMP,	PR_ATOMIC|PR_ADDR,
    104   icmp_input,	rip_output,	0,		rip_ctloutput,
    105   rip_usrreq,
    106   0,		0,		0,		0,
    107 },
    108 #ifdef TPIP
    109 { SOCK_SEQPACKET,&inetdomain,	IPPROTO_TP,	PR_CONNREQUIRED|PR_WANTRCVD,
    110   tpip_input,	0,		tpip_ctlinput,		tp_ctloutput,
    111   tp_usrreq,
    112   tp_init,	0,		tp_slowtimo,	tp_drain,
    113 },
    114 #endif
    115 /* EON (ISO CLNL over IP) */
    116 #ifdef EON
    117 { SOCK_RAW,	&inetdomain,	IPPROTO_EON,	0,
    118   eoninput,	0,		eonctlinput,		0,
    119   0,
    120   eonprotoinit,	0,		0,		0,
    121 },
    122 #endif
    123 #ifdef NSIP
    124 { SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
    125   idpip_input,	rip_output,	nsip_ctlinput,	0,
    126   rip_usrreq,
    127   0,		0,		0,		0,
    128 },
    129 #endif
    130 	/* raw wildcard */
    131 { SOCK_RAW,	&inetdomain,	0,		PR_ATOMIC|PR_ADDR,
    132   rip_input,	rip_output,	0,		rip_ctloutput,
    133   rip_usrreq,
    134   0,		0,		0,		0,
    135 },
    136 };
    137 
    138 struct domain inetdomain =
    139     { AF_INET, "internet", 0, 0, 0,
    140       inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])] };
    141 
    142 #if NIMP > 0
    143 extern	struct domain impdomain;
    144 
    145 struct protosw impsw[] = {
    146 { SOCK_RAW,	&impdomain,	0,		PR_ATOMIC|PR_ADDR,
    147   0,		rimp_output,	0,		0,
    148   rip_usrreq,
    149   0,		0,		hostslowtimo,	0,
    150 },
    151 };
    152 
    153 struct domain impdomain =
    154     { AF_IMPLINK, "imp", 0, 0, 0,
    155       impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] };
    156 #endif
    157 
    158