in_proto.c revision 7684
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 8.1 (Berkeley) 6/10/93 34 * $Id: in_proto.c,v 1.12 1995/02/16 00:55:38 wollman Exp $ 35 */ 36 37#include <sys/param.h> 38#include <sys/socket.h> 39#include <sys/protosw.h> 40#include <sys/domain.h> 41#include <sys/mbuf.h> 42#include <sys/queue.h> 43 44#include <net/if.h> 45#include <net/radix.h> 46#include <net/route.h> 47 48#include <netinet/in.h> 49#include <netinet/in_systm.h> 50#include <netinet/ip.h> 51#include <netinet/ip_var.h> 52#include <netinet/ip_icmp.h> 53#include <netinet/in_pcb.h> 54#include <netinet/igmp_var.h> 55#include <netinet/tcp.h> 56#include <netinet/tcp_fsm.h> 57#include <netinet/tcp_seq.h> 58#include <netinet/tcp_timer.h> 59#include <netinet/tcp_var.h> 60#include <netinet/tcpip.h> 61#ifdef TCPDEBUG 62#include <netinet/tcp_debug.h> 63#endif 64#include <netinet/udp.h> 65#include <netinet/udp_var.h> 66/* 67 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 68 */ 69 70#ifdef NSIP 71void idpip_input(), nsip_ctlinput(); 72#endif 73 74#ifdef TPIP 75void tpip_input(), tpip_ctlinput(), tp_ctloutput(); 76int tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq(); 77#endif 78 79#ifdef EON 80void eoninput(), eonctlinput(), eonprotoinit(); 81#endif /* EON */ 82 83void multiencap_decap(struct mbuf *); 84 85extern struct domain inetdomain; 86 87struct protosw inetsw[] = { 88{ 0, &inetdomain, 0, 0, 89 0, ip_output, 0, 0, 90 0, 91 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 92}, 93{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 94 udp_input, 0, udp_ctlinput, ip_ctloutput, 95 udp_usrreq, 96 udp_init, 0, 0, 0, udp_sysctl 97}, 98{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, 99 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 100 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 101 tcp_usrreq, 102 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 103}, 104{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 105 rip_input, rip_output, 0, rip_ctloutput, 106 rip_usrreq, 107 0, 0, 0, 0, 108}, 109{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 110 icmp_input, rip_output, 0, rip_ctloutput, 111 rip_usrreq, 112 0, 0, 0, 0, icmp_sysctl 113}, 114{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 115 igmp_input, rip_output, 0, rip_ctloutput, 116 rip_usrreq, 117 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, igmp_sysctl 118}, 119{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 120 rip_input, rip_output, 0, rip_ctloutput, 121 rip_usrreq, 122 0, 0, 0, 0, 123}, 124{ SOCK_RAW, &inetdomain, IPPROTO_ENCAP, PR_ATOMIC|PR_ADDR, 125 multiencap_decap, rip_output, 0, rip_ctloutput, 126 rip_usrreq, 127 0, 0, 0, 0, 128}, 129#ifdef TPIP 130{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 131 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 132 tp_usrreq, 133 tp_init, 0, tp_slowtimo, tp_drain, 134}, 135#endif 136/* EON (ISO CLNL over IP) */ 137#ifdef EON 138{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 139 eoninput, 0, eonctlinput, 0, 140 0, 141 eonprotoinit, 0, 0, 0, 142}, 143#endif 144#ifdef NSIP 145{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 146 idpip_input, rip_output, nsip_ctlinput, 0, 147 rip_usrreq, 148 0, 0, 0, 0, 149}, 150#endif 151 /* raw wildcard */ 152{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 153 rip_input, rip_output, 0, rip_ctloutput, 154 rip_usrreq, 155 rip_init, 0, 0, 0, 156}, 157}; 158 159extern int in_inithead(void **, int); 160 161struct domain inetdomain = 162 { AF_INET, "internet", 0, 0, 0, 163 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 164 in_inithead, 32, sizeof(struct sockaddr_in) 165 }; 166 167#include "imp.h" 168#if NIMP > 0 169extern struct domain impdomain; 170int rimp_output(), hostslowtimo(); 171 172struct protosw impsw[] = { 173{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 174 0, rimp_output, 0, 0, 175 rip_usrreq, 176 0, 0, hostslowtimo, 0, 177}, 178}; 179 180struct domain impdomain = 181 { AF_IMPLINK, "imp", 0, 0, 0, 182 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 183#endif 184 185#if 0 186#include "hy.h" 187#if NHY > 0 188/* 189 * HYPERchannel protocol family: raw interface. 190 */ 191int rhy_output(); 192extern struct domain hydomain; 193 194struct protosw hysw[] = { 195{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 196 0, rhy_output, 0, 0, 197 rip_usrreq, 198 0, 0, 0, 0, 199}, 200}; 201 202struct domain hydomain = 203 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 204#endif 205#endif 206