in_proto.c revision 5045
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 1.7 1994/11/02 04:41:39 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{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD, 98 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 99 tcp_usrreq, 100 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, 101}, 102{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 103 rip_input, rip_output, 0, rip_ctloutput, 104 rip_usrreq, 105 0, 0, 0, 0, 106}, 107{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 108 icmp_input, rip_output, 0, rip_ctloutput, 109 rip_usrreq, 110 0, 0, 0, 0, icmp_sysctl 111}, 112{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 113 igmp_input, rip_output, 0, rip_ctloutput, 114 rip_usrreq, 115 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, 116}, 117{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 118 rip_input, rip_output, 0, rip_ctloutput, 119 rip_usrreq, 120 0, 0, 0, 0, 121}, 122{ SOCK_RAW, &inetdomain, IPPROTO_ENCAP, PR_ATOMIC|PR_ADDR, 123 multiencap_decap, rip_output, 0, rip_ctloutput, 124 rip_usrreq, 125 0, 0, 0, 0, 126}, 127#ifdef TPIP 128{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 129 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 130 tp_usrreq, 131 tp_init, 0, tp_slowtimo, tp_drain, 132}, 133#endif 134/* EON (ISO CLNL over IP) */ 135#ifdef EON 136{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 137 eoninput, 0, eonctlinput, 0, 138 0, 139 eonprotoinit, 0, 0, 0, 140}, 141#endif 142#ifdef NSIP 143{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 144 idpip_input, rip_output, nsip_ctlinput, 0, 145 rip_usrreq, 146 0, 0, 0, 0, 147}, 148#endif 149 /* raw wildcard */ 150{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 151 rip_input, rip_output, 0, rip_ctloutput, 152 rip_usrreq, 153 rip_init, 0, 0, 0, 154}, 155}; 156 157extern int in_inithead(void **, int); 158 159struct domain inetdomain = 160 { AF_INET, "internet", 0, 0, 0, 161 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 162 in_inithead, 32, sizeof(struct sockaddr_in) 163 }; 164 165#include "imp.h" 166#if NIMP > 0 167extern struct domain impdomain; 168int rimp_output(), hostslowtimo(); 169 170struct protosw impsw[] = { 171{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 172 0, rimp_output, 0, 0, 173 rip_usrreq, 174 0, 0, hostslowtimo, 0, 175}, 176}; 177 178struct domain impdomain = 179 { AF_IMPLINK, "imp", 0, 0, 0, 180 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 181#endif 182 183#if 0 184#include "hy.h" 185#if NHY > 0 186/* 187 * HYPERchannel protocol family: raw interface. 188 */ 189int rhy_output(); 190extern struct domain hydomain; 191 192struct protosw hysw[] = { 193{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 194 0, rhy_output, 0, 0, 195 rip_usrreq, 196 0, 0, 0, 0, 197}, 198}; 199 200struct domain hydomain = 201 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 202#endif 203#endif 204