in_proto.c revision 12296
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 1.20 1995/11/09 20:22:55 phk 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 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 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 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}, 120{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 121 igmp_input, rip_output, 0, rip_ctloutput, 122 rip_usrreq, 123 igmp_init, igmp_fasttimo, igmp_slowtimo 124}, 125{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 126 rsvp_input, rip_output, 0, rip_ctloutput, 127 rip_usrreq, 128 0, 0, 0, 0, 129}, 130{ SOCK_RAW, &inetdomain, IPPROTO_IPIP, PR_ATOMIC|PR_ADDR, 131 ipip_input, rip_output, 0, rip_ctloutput, 132 rip_usrreq, 133 0, 0, 0, 0, 134}, 135#ifdef TPIP 136{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 137 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 138 tp_usrreq, 139 tp_init, 0, tp_slowtimo, tp_drain, 140}, 141#endif 142/* EON (ISO CLNL over IP) */ 143#ifdef EON 144{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 145 eoninput, 0, eonctlinput, 0, 146 0, 147 eonprotoinit, 0, 0, 0, 148}, 149#endif 150#ifdef IPXIP 151{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 152 ipxip_input, rip_output, ipxip_ctlinput, 0, 153 rip_usrreq, 154 0, 0, 0, 0, 155}, 156#endif 157#ifdef NSIP 158{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 159 idpip_input, rip_output, nsip_ctlinput, 0, 160 rip_usrreq, 161 0, 0, 0, 0, 162}, 163#endif 164 /* raw wildcard */ 165{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 166 rip_input, rip_output, 0, rip_ctloutput, 167 rip_usrreq, 168 rip_init, 0, 0, 0, 169}, 170}; 171 172extern int in_inithead(void **, int); 173 174struct domain inetdomain = 175 { AF_INET, "internet", 0, 0, 0, 176 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 177 in_inithead, 32, sizeof(struct sockaddr_in) 178 }; 179 180DOMAIN_SET(inet); 181 182SYSCTL_NODE(_net,PF_INET, inet,CTLFLAG_RW,0, "InterNet Protocols"); 183 184SYSCTL_NODE(_net_inet,IPPROTO_IP, ip, CTLFLAG_RW,0, "IP"); 185SYSCTL_NODE(_net_inet,IPPROTO_ICMP,icmp,CTLFLAG_RW,0, "ICMP"); 186SYSCTL_NODE(_net_inet,IPPROTO_UDP, udp, CTLFLAG_RW,0, "UDP"); 187SYSCTL_NODE(_net_inet,IPPROTO_TCP, tcp, CTLFLAG_RW,0, "TCP"); 188SYSCTL_NODE(_net_inet,IPPROTO_IGMP,igmp,CTLFLAG_RW,0, "IGMP"); 189 190#include "imp.h" 191#if NIMP > 0 192extern struct domain impdomain; 193int rimp_output(), hostslowtimo(); 194 195struct protosw impsw[] = { 196{ SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 197 0, rimp_output, 0, 0, 198 rip_usrreq, 199 0, 0, hostslowtimo, 0, 200}, 201}; 202 203struct domain impdomain = 204 { AF_IMPLINK, "imp", 0, 0, 0, 205 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 206 207DOMAIN_SET(imp); 208 209#endif 210 211#if 0 212#include "hy.h" 213#if NHY > 0 214/* 215 * HYPERchannel protocol family: raw interface. 216 */ 217int rhy_output(); 218extern struct domain hydomain; 219 220struct protosw hysw[] = { 221{ SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 222 0, rhy_output, 0, 0, 223 rip_usrreq, 224 0, 0, 0, 0, 225}, 226}; 227 228struct domain hydomain = 229 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 230 231DOMAIN_SET(hy); 232#endif 233#endif 234