in_proto.c revision 12172
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 * $Id: in_proto.c,v 1.19 1995/10/26 20:30:42 julian 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#include <sys/sysctl.h> 45 46#include <net/if.h> 47#include <net/radix.h> 48#include <net/route.h> 49 50#include <netinet/in.h> 51#include <netinet/in_systm.h> 52#include <netinet/ip.h> 53#include <netinet/ip_var.h> 54#include <netinet/ip_icmp.h> 55#include <netinet/in_pcb.h> 56#include <netinet/igmp_var.h> 57#include <netinet/tcp.h> 58#include <netinet/tcp_fsm.h> 59#include <netinet/tcp_seq.h> 60#include <netinet/tcp_timer.h> 61#include <netinet/tcp_var.h> 62#include <netinet/tcpip.h> 63#ifdef TCPDEBUG 64#include <netinet/tcp_debug.h> 65#endif 66#include <netinet/udp.h> 67#include <netinet/udp_var.h> 68/* 69 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 70 */ 71 72#ifdef IPXIP 73void ipxip_input(), ipxip_ctlinput(); 74#endif 75 76#ifdef NSIP 77void idpip_input(), nsip_ctlinput(); 78#endif 79 80#ifdef TPIP 81void tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain(); 82int tp_ctloutput(), tp_usrreq(); 83#endif 84 85#ifdef EON 86void eoninput(), eonctlinput(), eonprotoinit(); 87#endif /* EON */ 88 89void rsvp_input(struct mbuf *, int); 90void ipip_input(struct mbuf *, int); 91 92extern struct domain inetdomain; 93 94struct protosw inetsw[] = { 95{ 0, &inetdomain, 0, 0, 96 0, ip_output, 0, 0, 97 0, 98 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 99}, 100{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 101 udp_input, 0, udp_ctlinput, ip_ctloutput, 102 udp_usrreq, 103 udp_init, 0, 0, 0, udp_sysctl 104}, 105{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, 106 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 107 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 108 tcp_usrreq, 109 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 110}, 111{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 112 rip_input, rip_output, 0, rip_ctloutput, 113 rip_usrreq, 114 0, 0, 0, 0, 115}, 116{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 117 icmp_input, rip_output, 0, rip_ctloutput, 118 rip_usrreq, 119 0, 0, 0, 0, icmp_sysctl 120}, 121{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 122 igmp_input, rip_output, 0, rip_ctloutput, 123 rip_usrreq, 124 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, igmp_sysctl 125}, 126{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 127 rsvp_input, rip_output, 0, rip_ctloutput, 128 rip_usrreq, 129 0, 0, 0, 0, 130}, 131{ SOCK_RAW, &inetdomain, IPPROTO_IPIP, PR_ATOMIC|PR_ADDR, 132 ipip_input, rip_output, 0, rip_ctloutput, 133 rip_usrreq, 134 0, 0, 0, 0, 135}, 136#ifdef TPIP 137{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 138 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 139 tp_usrreq, 140 tp_init, 0, tp_slowtimo, tp_drain, 141}, 142#endif 143/* EON (ISO CLNL over IP) */ 144#ifdef EON 145{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 146 eoninput, 0, eonctlinput, 0, 147 0, 148 eonprotoinit, 0, 0, 0, 149}, 150#endif 151#ifdef IPXIP 152{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 153 ipxip_input, rip_output, ipxip_ctlinput, 0, 154 rip_usrreq, 155 0, 0, 0, 0, 156}, 157#endif 158#ifdef NSIP 159{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 160 idpip_input, rip_output, nsip_ctlinput, 0, 161 rip_usrreq, 162 0, 0, 0, 0, 163}, 164#endif 165 /* raw wildcard */ 166{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 167 rip_input, rip_output, 0, rip_ctloutput, 168 rip_usrreq, 169 rip_init, 0, 0, 0, 170}, 171}; 172 173extern int in_inithead(void **, int); 174 175struct domain inetdomain = 176 { AF_INET, "internet", 0, 0, 0, 177 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 178 in_inithead, 32, sizeof(struct sockaddr_in) 179 }; 180 181DOMAIN_SET(inet); 182 183SYSCTL_NODE(_net,PF_INET, inet,CTLFLAG_RW,0, "InterNet Protocols"); 184 185SYSCTL_NODE(_net_inet,IPPROTO_IP, ip, CTLFLAG_RW,0, "IP"); 186SYSCTL_NODE(_net_inet,IPPROTO_ICMP,icmp,CTLFLAG_RW,0, "ICMP"); 187SYSCTL_NODE(_net_inet,IPPROTO_UDP, udp, CTLFLAG_RW,0, "UDP"); 188SYSCTL_NODE(_net_inet,IPPROTO_TCP, tcp, CTLFLAG_RW,0, "TCP"); 189SYSCTL_NODE(_net_inet,IPPROTO_IGMP,igmp,CTLFLAG_RW,0, "IGMP"); 190 191#include "imp.h" 192#if NIMP > 0 193extern struct domain impdomain; 194int rimp_output(), hostslowtimo(); 195 196struct protosw impsw[] = { 197{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 198 0, rimp_output, 0, 0, 199 rip_usrreq, 200 0, 0, hostslowtimo, 0, 201}, 202}; 203 204struct domain impdomain = 205 { AF_IMPLINK, "imp", 0, 0, 0, 206 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 207 208DOMAIN_SET(imp); 209 210#endif 211 212#if 0 213#include "hy.h" 214#if NHY > 0 215/* 216 * HYPERchannel protocol family: raw interface. 217 */ 218int rhy_output(); 219extern struct domain hydomain; 220 221struct protosw hysw[] = { 222{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 223 0, rhy_output, 0, 0, 224 rip_usrreq, 225 0, 0, 0, 0, 226}, 227}; 228 229struct domain hydomain = 230 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 231 232DOMAIN_SET(hy); 233#endif 234#endif 235