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 8.1 (Berkeley) 6/10/93 34 * $Id: in_proto.c,v 1.11 1995/02/09 23:13:20 wollman Exp $ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/socket.h> 39 #include <sys/protosw.h> 40 #include <sys/domain.h> 41 #include <sys/mbuf.h> 42 43 #include <net/if.h> 44 #include <net/radix.h> 45 #include <net/route.h> 46 47 #include <netinet/in.h> 48 #include <netinet/in_systm.h> 49 #include <netinet/ip.h> 50 #include <netinet/ip_var.h> 51 #include <netinet/ip_icmp.h> 52 #include <netinet/in_pcb.h> 53 #include <netinet/igmp_var.h> 54 #include <netinet/tcp.h> 55 #include <netinet/tcp_fsm.h> 56 #include <netinet/tcp_seq.h> 57 #include <netinet/tcp_timer.h> 58 #include <netinet/tcp_var.h> 59 #include <netinet/tcpip.h> 60 #ifdef TCPDEBUG 61 #include <netinet/tcp_debug.h> 62 #endif 63 #include <netinet/udp.h> 64 #include <netinet/udp_var.h> 65 /* 66 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 67 */ 68 69 #ifdef NSIP 70 void idpip_input(), nsip_ctlinput(); 71 #endif 72 73 #ifdef TPIP 74 void tpip_input(), tpip_ctlinput(), tp_ctloutput(); 75 int tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq(); 76 #endif 77 78 #ifdef EON 79 void eoninput(), eonctlinput(), eonprotoinit(); 80 #endif /* EON */ 81 82 void multiencap_decap(struct mbuf *); 83 84 extern struct domain inetdomain; 85 86 struct protosw inetsw[] = { 87 { 0, &inetdomain, 0, 0, 88 0, ip_output, 0, 0, 89 0, 90 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 91 }, 92 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 93 udp_input, 0, udp_ctlinput, ip_ctloutput, 94 udp_usrreq, 95 udp_init, 0, 0, 0, udp_sysctl 96 }, 97 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, 98 PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD, 99 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 100 tcp_usrreq, 101 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 102 }, 103 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 104 rip_input, rip_output, 0, rip_ctloutput, 105 rip_usrreq, 106 0, 0, 0, 0, 107 }, 108 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR, 109 icmp_input, rip_output, 0, rip_ctloutput, 110 rip_usrreq, 111 0, 0, 0, 0, icmp_sysctl 112 }, 113 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR, 114 igmp_input, rip_output, 0, rip_ctloutput, 115 rip_usrreq, 116 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, igmp_sysctl 117 }, 118 { SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR, 119 rip_input, rip_output, 0, rip_ctloutput, 120 rip_usrreq, 121 0, 0, 0, 0, 122 }, 123 { SOCK_RAW, &inetdomain, IPPROTO_ENCAP, PR_ATOMIC|PR_ADDR, 124 multiencap_decap, rip_output, 0, rip_ctloutput, 125 rip_usrreq, 126 0, 0, 0, 0, 127 }, 128 #ifdef TPIP 129 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD, 130 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 131 tp_usrreq, 132 tp_init, 0, tp_slowtimo, tp_drain, 133 }, 134 #endif 135 /* EON (ISO CLNL over IP) */ 136 #ifdef EON 137 { SOCK_RAW, &inetdomain, IPPROTO_EON, 0, 138 eoninput, 0, eonctlinput, 0, 139 0, 140 eonprotoinit, 0, 0, 0, 141 }, 142 #endif 143 #ifdef NSIP 144 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR, 145 idpip_input, rip_output, nsip_ctlinput, 0, 146 rip_usrreq, 147 0, 0, 0, 0, 148 }, 149 #endif 150 /* raw wildcard */ 151 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 152 rip_input, rip_output, 0, rip_ctloutput, 153 rip_usrreq, 154 rip_init, 0, 0, 0, 155 }, 156 }; 157 158 extern int in_inithead(void **, int); 159 160 struct domain inetdomain = 161 { AF_INET, "internet", 0, 0, 0, 162 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 163 in_inithead, 32, sizeof(struct sockaddr_in) 164 }; 165 166 #include "imp.h" 167 #if NIMP > 0 168 extern struct domain impdomain; 169 int rimp_output(), hostslowtimo(); 170 171 struct protosw impsw[] = { 172 { SOCK_RAW, &impdomain, 0, PR_ATOMIC|PR_ADDR, 173 0, rimp_output, 0, 0, 174 rip_usrreq, 175 0, 0, hostslowtimo, 0, 176 }, 177 }; 178 179 struct domain impdomain = 180 { AF_IMPLINK, "imp", 0, 0, 0, 181 impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] }; 182 #endif 183 184 #if 0 185 #include "hy.h" 186 #if NHY > 0 187 /* 188 * HYPERchannel protocol family: raw interface. 189 */ 190 int rhy_output(); 191 extern struct domain hydomain; 192 193 struct protosw hysw[] = { 194 { SOCK_RAW, &hydomain, 0, PR_ATOMIC|PR_ADDR, 195 0, rhy_output, 0, 0, 196 rip_usrreq, 197 0, 0, 0, 0, 198 }, 199 }; 200 201 struct domain hydomain = 202 { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] }; 203 #endif 204 #endif 205