in_proto.c revision 8876
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 * From: @(#)in_proto.c 8.1 (Berkeley) 6/10/93 34 * $Id: in_proto.c,v 1.14 1995/05/11 00:13:17 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 NSIP 72void idpip_input(), nsip_ctlinput(); 73#endif 74 75#ifdef TPIP 76void tpip_input(), tpip_ctlinput(), tp_ctloutput(); 77int tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq(); 78#endif 79 80#ifdef EON 81void eoninput(), eonctlinput(), eonprotoinit(); 82#endif /* EON */ 83 84void multiencap_decap(struct mbuf *); 85 86extern struct domain inetdomain; 87 88struct protosw inetsw[] = { 89{ 0, &inetdomain, 0, 0, 90 0, ip_output, 0, 0, 91 0, 92 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 93}, 94{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 95 udp_input, 0, udp_ctlinput, ip_ctloutput, 96 udp_usrreq, 97 udp_init, 0, 0, 0, udp_sysctl 98}, 99{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, 100 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 101 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 102 tcp_usrreq, 103 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 104}, 105{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 106 rip_input, rip_output, 0, rip_ctloutput, 107 rip_usrreq, 108 0, 0, 0, 0, 109}, 110{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 111 icmp_input, rip_output, 0, rip_ctloutput, 112 rip_usrreq, 113 0, 0, 0, 0, icmp_sysctl 114}, 115{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 116 igmp_input, rip_output, 0, rip_ctloutput, 117 rip_usrreq, 118 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, igmp_sysctl 119}, 120{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 121 rip_input, rip_output, 0, rip_ctloutput, 122 rip_usrreq, 123 0, 0, 0, 0, 124}, 125{ SOCK_RAW, &inetdomain, IPPROTO_ENCAP, PR_ATOMIC|PR_ADDR, 126 multiencap_decap, rip_output, 0, rip_ctloutput, 127 rip_usrreq, 128 0, 0, 0, 0, 129}, 130#ifdef TPIP 131{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 132 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 133 tp_usrreq, 134 tp_init, 0, tp_slowtimo, tp_drain, 135}, 136#endif 137/* EON (ISO CLNL over IP) */ 138#ifdef EON 139{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 140 eoninput, 0, eonctlinput, 0, 141 0, 142 eonprotoinit, 0, 0, 0, 143}, 144#endif 145#ifdef NSIP 146{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 147 idpip_input, rip_output, nsip_ctlinput, 0, 148 rip_usrreq, 149 0, 0, 0, 0, 150}, 151#endif 152 /* raw wildcard */ 153{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 154 rip_input, rip_output, 0, rip_ctloutput, 155 rip_usrreq, 156 rip_init, 0, 0, 0, 157}, 158}; 159 160extern int in_inithead(void **, int); 161 162struct domain inetdomain = 163 { AF_INET, "internet", 0, 0, 0, 164 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 165 in_inithead, 32, sizeof(struct sockaddr_in) 166 }; 167 168DOMAIN_SET(inet); 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 187DOMAIN_SET(imp); 188 189#endif 190 191#if 0 192#include "hy.h" 193#if NHY > 0 194/* 195 * HYPERchannel protocol family: raw interface. 196 */ 197int rhy_output(); 198extern struct domain hydomain; 199 200struct protosw hysw[] = { 201{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 202 0, rhy_output, 0, 0, 203 rip_usrreq, 204 0, 0, 0, 0, 205}, 206}; 207 208struct domain hydomain = 209 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 210 211DOMAIN_SET(hy); 212#endif 213#endif 214