in_proto.c revision 12579
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 1.22 1995/11/20 12:28:16 phk Exp $ 35 */ 36 37#include <sys/param.h> 38#include <sys/kernel.h> 39#include <sys/socket.h> 40#include <sys/socketvar.h> 41#include <sys/domain.h> 42#include <sys/mbuf.h> 43#include <sys/protosw.h> 44#include <sys/queue.h> 45#include <sys/sysctl.h> 46 47#include <net/if.h> 48#include <net/radix.h> 49#include <net/route.h> 50 51#include <netinet/in.h> 52#include <netinet/in_systm.h> 53#include <netinet/ip.h> 54#include <netinet/ip_var.h> 55#include <netinet/ip_icmp.h> 56#include <netinet/in_pcb.h> 57#include <netinet/igmp_var.h> 58#include <netinet/tcp.h> 59#include <netinet/tcp_fsm.h> 60#include <netinet/tcp_seq.h> 61#include <netinet/tcp_timer.h> 62#include <netinet/tcp_var.h> 63#include <netinet/tcpip.h> 64#ifdef TCPDEBUG 65#include <netinet/tcp_debug.h> 66#endif 67#include <netinet/udp.h> 68#include <netinet/udp_var.h> 69/* 70 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 71 */ 72 73#ifdef IPXIP 74#include <netipx/ipx.h> 75#include <netipx/ipx_ip.h> 76#endif 77 78#ifdef NSIP 79#include <netns/ns.h> 80#include <netns/ns_if.h> 81#endif 82 83#ifdef TPIP 84void tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain(); 85int tp_ctloutput(), tp_usrreq(); 86#endif 87 88#ifdef EON 89void eoninput(), eonctlinput(), eonprotoinit(); 90#endif /* EON */ 91 92void rsvp_input(struct mbuf *, int); 93void ipip_input(struct mbuf *, int); 94 95extern struct domain inetdomain; 96 97struct protosw inetsw[] = { 98{ 0, &inetdomain, 0, 0, 99 0, ip_output, 0, 0, 100 0, 101 ip_init, 0, ip_slowtimo, ip_drain 102}, 103{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 104 udp_input, 0, udp_ctlinput, ip_ctloutput, 105 udp_usrreq, 106 udp_init 107}, 108{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, 109 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 110 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 111 tcp_usrreq, 112 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain 113}, 114{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 115 rip_input, rip_output, 0, rip_ctloutput, 116 rip_usrreq, 117 0, 0, 0, 0, 118}, 119{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 120 icmp_input, rip_output, 0, rip_ctloutput, 121 rip_usrreq 122}, 123{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 124 igmp_input, rip_output, 0, rip_ctloutput, 125 rip_usrreq, 126 igmp_init, igmp_fasttimo, igmp_slowtimo 127}, 128{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 129 rsvp_input, rip_output, 0, rip_ctloutput, 130 rip_usrreq, 131 0, 0, 0, 0, 132}, 133{ SOCK_RAW, &inetdomain, IPPROTO_IPIP, PR_ATOMIC|PR_ADDR, 134 ipip_input, rip_output, 0, rip_ctloutput, 135 rip_usrreq, 136 0, 0, 0, 0, 137}, 138#ifdef TPIP 139{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 140 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 141 tp_usrreq, 142 tp_init, 0, tp_slowtimo, tp_drain, 143}, 144#endif 145/* EON (ISO CLNL over IP) */ 146#ifdef EON 147{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 148 eoninput, 0, eonctlinput, 0, 149 0, 150 eonprotoinit, 0, 0, 0, 151}, 152#endif 153#ifdef IPXIP 154{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 155 ipxip_input, rip_output, ipxip_ctlinput, 0, 156 rip_usrreq, 157 0, 0, 0, 0, 158}, 159#endif 160#ifdef NSIP 161{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 162 idpip_input, rip_output, nsip_ctlinput, 0, 163 rip_usrreq, 164 0, 0, 0, 0, 165}, 166#endif 167 /* raw wildcard */ 168{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 169 rip_input, rip_output, 0, rip_ctloutput, 170 rip_usrreq, 171 rip_init, 0, 0, 0, 172}, 173}; 174 175extern int in_inithead(void **, int); 176 177struct domain inetdomain = 178 { AF_INET, "internet", 0, 0, 0, 179 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 180 in_inithead, 32, sizeof(struct sockaddr_in) 181 }; 182 183DOMAIN_SET(inet); 184 185SYSCTL_NODE(_net,PF_INET, inet,CTLFLAG_RW,0, "InterNet Protocols"); 186 187SYSCTL_NODE(_net_inet,IPPROTO_IP, ip, CTLFLAG_RW,0, "IP"); 188SYSCTL_NODE(_net_inet,IPPROTO_ICMP,icmp,CTLFLAG_RW,0, "ICMP"); 189SYSCTL_NODE(_net_inet,IPPROTO_UDP, udp, CTLFLAG_RW,0, "UDP"); 190SYSCTL_NODE(_net_inet,IPPROTO_TCP, tcp, CTLFLAG_RW,0, "TCP"); 191SYSCTL_NODE(_net_inet,IPPROTO_IGMP,igmp,CTLFLAG_RW,0, "IGMP"); 192 193#include "imp.h" 194#if NIMP > 0 195extern struct domain impdomain; 196int rimp_output(), hostslowtimo(); 197 198struct protosw impsw[] = { 199{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 200 0, rimp_output, 0, 0, 201 rip_usrreq, 202 0, 0, hostslowtimo, 0, 203}, 204}; 205 206struct domain impdomain = 207 { AF_IMPLINK, "imp", 0, 0, 0, 208 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 209 210DOMAIN_SET(imp); 211 212#endif 213 214#if 0 215#include "hy.h" 216#if NHY > 0 217/* 218 * HYPERchannel protocol family: raw interface. 219 */ 220int rhy_output(); 221extern struct domain hydomain; 222 223struct protosw hysw[] = { 224{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 225 0, rhy_output, 0, 0, 226 rip_usrreq, 227 0, 0, 0, 0, 228}, 229}; 230 231struct domain hydomain = 232 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 233 234DOMAIN_SET(hy); 235#endif 236#endif 237