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 1.24 1995/12/20 21:53:53 wollman 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 84 void tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain(); 85 int tp_ctloutput(), tp_usrreq(); 86 #endif 87 88 #ifdef EON 89 void eoninput(), eonctlinput(), eonprotoinit(); 90 #endif /* EON */ 91 92 void rsvp_input(struct mbuf *, int); 93 void ipip_input(struct mbuf *, int); 94 95 extern struct domain inetdomain; 96 97 struct 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 }; 174 175 extern int in_inithead(void **, int); 176 177 struct 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 }; 182 183 DOMAIN_SET(inet); 184 185 SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0, 186 "Internet Family"); 187 188 SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP"); 189 SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP"); 190 SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP"); 191 SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP"); 192 SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP"); 193 194 #if 0 195 #include "imp.h" 196 #if NIMP > 0 197 extern struct domain impdomain; 198 int rimp_output(), hostslowtimo(); 199 200 struct protosw impsw[] = { 201 { SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 202 0, rimp_output, 0, 0, 203 rip_usrreq, 204 0, 0, hostslowtimo, 0, 205 }, 206 }; 207 208 struct domain impdomain = 209 { AF_IMPLINK, "imp", 0, 0, 0, 210 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 211 212 DOMAIN_SET(imp); 213 214 #endif 215 #endif 216 217 #if 0 218 #include "hy.h" 219 #if NHY > 0 220 /* 221 * HYPERchannel protocol family: raw interface. 222 */ 223 int rhy_output(); 224 extern struct domain hydomain; 225 226 struct protosw hysw[] = { 227 { SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 228 0, rhy_output, 0, 0, 229 rip_usrreq, 230 0, 0, 0, 0, 231 }, 232 }; 233 234 struct domain hydomain = 235 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 236 237 DOMAIN_SET(hy); 238 #endif 239 #endif 240