in_proto.c revision 6248
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 1.8 1994/12/11 21:36:10 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 43#include <net/if.h> 44#include <net/radix.h> 45#include <net/route.h> 46 47#include <netinet/in.h> 48#include <netinet/in_systm.h> 49#include <netinet/ip.h> 50#include <netinet/ip_var.h> 51#include <netinet/ip_icmp.h> 52#include <netinet/in_pcb.h> 53#include <netinet/igmp_var.h> 54#include <netinet/tcp.h> 55#include <netinet/tcp_fsm.h> 56#include <netinet/tcp_seq.h> 57#include <netinet/tcp_timer.h> 58#include <netinet/tcp_var.h> 59#include <netinet/tcpip.h> 60#ifdef TCPDEBUG 61#include <netinet/tcp_debug.h> 62#endif 63#include <netinet/udp.h> 64#include <netinet/udp_var.h> 65/* 66 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 67 */ 68 69#ifdef NSIP 70void idpip_input(), nsip_ctlinput(); 71#endif 72 73#ifdef TPIP 74void tpip_input(), tpip_ctlinput(), tp_ctloutput(); 75int tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq(); 76#endif 77 78#ifdef EON 79void eoninput(), eonctlinput(), eonprotoinit(); 80#endif /* EON */ 81 82void multiencap_decap(struct mbuf *); 83 84extern struct domain inetdomain; 85 86struct protosw inetsw[] = { 87{ 0, &inetdomain, 0, 0, 88 0, ip_output, 0, 0, 89 0, 90 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 91}, 92{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 93 udp_input, 0, udp_ctlinput, ip_ctloutput, 94 udp_usrreq, 95 udp_init, 0, 0, 0, udp_sysctl 96}, 97#ifdef TTCP 98{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, 99 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 100#else 101{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD, 102#endif 103 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 104 tcp_usrreq, 105 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 106}, 107{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 108 rip_input, rip_output, 0, rip_ctloutput, 109 rip_usrreq, 110 0, 0, 0, 0, 111}, 112{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 113 icmp_input, rip_output, 0, rip_ctloutput, 114 rip_usrreq, 115 0, 0, 0, 0, icmp_sysctl 116}, 117{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 118 igmp_input, rip_output, 0, rip_ctloutput, 119 rip_usrreq, 120 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, 121}, 122{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 123 rip_input, rip_output, 0, rip_ctloutput, 124 rip_usrreq, 125 0, 0, 0, 0, 126}, 127{ SOCK_RAW, &inetdomain, IPPROTO_ENCAP, PR_ATOMIC|PR_ADDR, 128 multiencap_decap, rip_output, 0, rip_ctloutput, 129 rip_usrreq, 130 0, 0, 0, 0, 131}, 132#ifdef TPIP 133{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 134 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 135 tp_usrreq, 136 tp_init, 0, tp_slowtimo, tp_drain, 137}, 138#endif 139/* EON (ISO CLNL over IP) */ 140#ifdef EON 141{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 142 eoninput, 0, eonctlinput, 0, 143 0, 144 eonprotoinit, 0, 0, 0, 145}, 146#endif 147#ifdef NSIP 148{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 149 idpip_input, rip_output, nsip_ctlinput, 0, 150 rip_usrreq, 151 0, 0, 0, 0, 152}, 153#endif 154 /* raw wildcard */ 155{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 156 rip_input, rip_output, 0, rip_ctloutput, 157 rip_usrreq, 158 rip_init, 0, 0, 0, 159}, 160}; 161 162extern int in_inithead(void **, int); 163 164struct domain inetdomain = 165 { AF_INET, "internet", 0, 0, 0, 166 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 167 in_inithead, 32, sizeof(struct sockaddr_in) 168 }; 169 170#include "imp.h" 171#if NIMP > 0 172extern struct domain impdomain; 173int rimp_output(), hostslowtimo(); 174 175struct protosw impsw[] = { 176{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 177 0, rimp_output, 0, 0, 178 rip_usrreq, 179 0, 0, hostslowtimo, 0, 180}, 181}; 182 183struct domain impdomain = 184 { AF_IMPLINK, "imp", 0, 0, 0, 185 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 186#endif 187 188#if 0 189#include "hy.h" 190#if NHY > 0 191/* 192 * HYPERchannel protocol family: raw interface. 193 */ 194int rhy_output(); 195extern struct domain hydomain; 196 197struct protosw hysw[] = { 198{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 199 0, rhy_output, 0, 0, 200 rip_usrreq, 201 0, 0, 0, 0, 202}, 203}; 204 205struct domain hydomain = 206 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 207#endif 208#endif 209