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 73 void ipxip_input(), ipxip_ctlinput(); 74 #endif 75 76 #ifdef NSIP 77 void idpip_input(), nsip_ctlinput(); 78 #endif 79 80 #ifdef TPIP 81 void tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain(); 82 int tp_ctloutput(), tp_usrreq(); 83 #endif 84 85 #ifdef EON 86 void eoninput(), eonctlinput(), eonprotoinit(); 87 #endif /* EON */ 88 89 void rsvp_input(struct mbuf *, int); 90 void ipip_input(struct mbuf *, int); 91 92 extern struct domain inetdomain; 93 94 struct 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 }; 172 173 extern int in_inithead(void **, int); 174 175 struct 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 }; 180 181 DOMAIN_SET(inet); 182 183 SYSCTL_NODE(_net,PF_INET, inet,CTLFLAG_RW,0, "InterNet Protocols"); 184 185 SYSCTL_NODE(_net_inet,IPPROTO_IP, ip, CTLFLAG_RW,0, "IP"); 186 SYSCTL_NODE(_net_inet,IPPROTO_ICMP,icmp,CTLFLAG_RW,0, "ICMP"); 187 SYSCTL_NODE(_net_inet,IPPROTO_UDP, udp, CTLFLAG_RW,0, "UDP"); 188 SYSCTL_NODE(_net_inet,IPPROTO_TCP, tcp, CTLFLAG_RW,0, "TCP"); 189 SYSCTL_NODE(_net_inet,IPPROTO_IGMP,igmp,CTLFLAG_RW,0, "IGMP"); 190 191 #include "imp.h" 192 #if NIMP > 0 193 extern struct domain impdomain; 194 int rimp_output(), hostslowtimo(); 195 196 struct 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 }; 203 204 struct domain impdomain = 205 { AF_IMPLINK, "imp", 0, 0, 0, 206 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 207 208 DOMAIN_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 */ 218 int rhy_output(); 219 extern struct domain hydomain; 220 221 struct 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 }; 228 229 struct domain hydomain = 230 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 231 232 DOMAIN_SET(hy); 233 #endif 234 #endif 235