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in_proto.c revision 1.1.1.3
      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  */
     35 
     36 #include <sys/param.h>
     37 #include <sys/socket.h>
     38 #include <sys/protosw.h>
     39 #include <sys/domain.h>
     40 #include <sys/mbuf.h>
     41 
     42 #include <net/if.h>
     43 #include <net/radix.h>
     44 #include <net/route.h>
     45 
     46 #include <netinet/in.h>
     47 #include <netinet/in_systm.h>
     48 #include <netinet/ip.h>
     49 #include <netinet/ip_var.h>
     50 #include <netinet/ip_icmp.h>
     51 #include <netinet/in_pcb.h>
     52 #include <netinet/igmp_var.h>
     53 #include <netinet/tcp.h>
     54 #include <netinet/tcp_fsm.h>
     55 #include <netinet/tcp_seq.h>
     56 #include <netinet/tcp_timer.h>
     57 #include <netinet/tcp_var.h>
     58 #include <netinet/tcpip.h>
     59 #include <netinet/tcp_debug.h>
     60 #include <netinet/udp.h>
     61 #include <netinet/udp_var.h>
     62 /*
     63  * TCP/IP protocol family: IP, ICMP, UDP, TCP.
     64  */
     65 
     66 #ifdef NSIP
     67 void	idpip_input(), nsip_ctlinput();
     68 #endif
     69 
     70 #ifdef TPIP
     71 void	tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain();
     72 int	tp_ctloutput(), tp_usrreq();
     73 #endif
     74 
     75 #ifdef EON
     76 void	eoninput(), eonctlinput(), eonprotoinit();
     77 #endif /* EON */
     78 
     79 extern	struct domain inetdomain;
     80 
     81 struct protosw inetsw[] = {
     82 { 0,		&inetdomain,	0,		0,
     83   0,		ip_output,	0,		0,
     84   0,
     85   ip_init,	0,		ip_slowtimo,	ip_drain,	ip_sysctl
     86 },
     87 { SOCK_DGRAM,	&inetdomain,	IPPROTO_UDP,	PR_ATOMIC|PR_ADDR,
     88   udp_input,	0,		udp_ctlinput,	ip_ctloutput,
     89   udp_usrreq,
     90   udp_init,	0,		0,		0,		udp_sysctl
     91 },
     92 { SOCK_STREAM,	&inetdomain,	IPPROTO_TCP,	PR_CONNREQUIRED|PR_WANTRCVD,
     93   tcp_input,	0,		tcp_ctlinput,	tcp_ctloutput,
     94   tcp_usrreq,
     95   tcp_init,	tcp_fasttimo,	tcp_slowtimo,	tcp_drain,
     96 },
     97 { SOCK_RAW,	&inetdomain,	IPPROTO_RAW,	PR_ATOMIC|PR_ADDR,
     98   rip_input,	rip_output,	0,		rip_ctloutput,
     99   rip_usrreq,
    100   0,		0,		0,		0,
    101 },
    102 { SOCK_RAW,	&inetdomain,	IPPROTO_ICMP,	PR_ATOMIC|PR_ADDR,
    103   icmp_input,	rip_output,	0,		rip_ctloutput,
    104   rip_usrreq,
    105   0,		0,		0,		0,		icmp_sysctl
    106 },
    107 { SOCK_RAW,	&inetdomain,	IPPROTO_IGMP,	PR_ATOMIC|PR_ADDR,
    108   igmp_input,	rip_output,	0,		rip_ctloutput,
    109   rip_usrreq,
    110   igmp_init,	igmp_fasttimo,	0,		0,
    111 },
    112 #ifdef TPIP
    113 { SOCK_SEQPACKET,&inetdomain,	IPPROTO_TP,	PR_CONNREQUIRED|PR_WANTRCVD,
    114   tpip_input,	0,		tpip_ctlinput,	tp_ctloutput,
    115   tp_usrreq,
    116   tp_init,	0,		tp_slowtimo,	tp_drain,
    117 },
    118 #endif
    119 /* EON (ISO CLNL over IP) */
    120 #ifdef EON
    121 { SOCK_RAW,	&inetdomain,	IPPROTO_EON,	0,
    122   eoninput,	0,		eonctlinput,		0,
    123   0,
    124   eonprotoinit,	0,		0,		0,
    125 },
    126 #endif
    127 #ifdef NSIP
    128 { SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
    129   idpip_input,	rip_output,	nsip_ctlinput,	0,
    130   rip_usrreq,
    131   0,		0,		0,		0,
    132 },
    133 #endif
    134 	/* raw wildcard */
    135 { SOCK_RAW,	&inetdomain,	0,		PR_ATOMIC|PR_ADDR,
    136   rip_input,	rip_output,	0,		rip_ctloutput,
    137   rip_usrreq,
    138   rip_init,	0,		0,		0,
    139 },
    140 };
    141 
    142 struct domain inetdomain =
    143     { AF_INET, "internet", 0, 0, 0,
    144       inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
    145       rn_inithead, 32, sizeof(struct sockaddr_in) };
    146 
    147 #include "imp.h"
    148 #if NIMP > 0
    149 extern	struct domain impdomain;
    150 int	rimp_output(), hostslowtimo();
    151 
    152 struct protosw impsw[] = {
    153 { SOCK_RAW,	&impdomain,	0,		PR_ATOMIC|PR_ADDR,
    154   0,		rimp_output,	0,		0,
    155   rip_usrreq,
    156   0,		0,		hostslowtimo,	0,
    157 },
    158 };
    159 
    160 struct domain impdomain =
    161     { AF_IMPLINK, "imp", 0, 0, 0,
    162       impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] };
    163 #endif
    164 
    165 #include "hy.h"
    166 #if NHY > 0
    167 /*
    168  * HYPERchannel protocol family: raw interface.
    169  */
    170 int	rhy_output();
    171 extern	struct domain hydomain;
    172 
    173 struct protosw hysw[] = {
    174 { SOCK_RAW,	&hydomain,	0,		PR_ATOMIC|PR_ADDR,
    175   0,		rhy_output,	0,		0,
    176   rip_usrreq,
    177   0,		0,		0,		0,
    178 },
    179 };
    180 
    181 struct domain hydomain =
    182     { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] };
    183 #endif
    184