in_proto.c revision 1.47.2.3
1 /* $NetBSD: in_proto.c,v 1.47.2.3 2001/11/14 19:17:45 nathanw Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)in_proto.c 8.2 (Berkeley) 2/9/95 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.47.2.3 2001/11/14 19:17:45 nathanw Exp $"); 69 70 #include "opt_mrouting.h" 71 #include "opt_eon.h" /* ISO CLNL over IP */ 72 #include "opt_iso.h" /* ISO TP tunneled over IP */ 73 #include "opt_ns.h" /* NSIP: XNS tunneled over IP */ 74 #include "opt_inet.h" 75 #include "opt_ipsec.h" 76 77 #include <sys/param.h> 78 #include <sys/socket.h> 79 #include <sys/protosw.h> 80 #include <sys/domain.h> 81 #include <sys/mbuf.h> 82 83 #include <net/if.h> 84 #include <net/radix.h> 85 #include <net/route.h> 86 87 #include <netinet/in.h> 88 #include <netinet/in_systm.h> 89 #include <netinet/ip.h> 90 #include <netinet/ip_var.h> 91 #include <netinet/ip_icmp.h> 92 #include <netinet/in_pcb.h> 93 94 #ifdef INET6 95 #ifndef INET 96 #include <netinet/in.h> 97 #endif 98 #include <netinet/ip6.h> 99 #endif 100 101 #include <netinet/igmp_var.h> 102 #include <netinet/tcp.h> 103 #include <netinet/tcp_fsm.h> 104 #include <netinet/tcp_seq.h> 105 #include <netinet/tcp_timer.h> 106 #include <netinet/tcp_var.h> 107 #include <netinet/tcpip.h> 108 #include <netinet/tcp_debug.h> 109 #include <netinet/udp.h> 110 #include <netinet/udp_var.h> 111 #include <netinet/ip_encap.h> 112 /* 113 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 114 */ 115 116 #ifdef IPSEC 117 #include <netinet6/ah.h> 118 #ifdef IPSEC_ESP 119 #include <netinet6/esp.h> 120 #endif 121 #include <netinet6/ipcomp.h> 122 #endif /* IPSEC */ 123 124 #include "gif.h" 125 #if NGIF > 0 126 #include <netinet/in_gif.h> 127 #endif 128 129 #ifdef NSIP 130 #include <netns/ns_var.h> 131 #include <netns/idp_var.h> 132 #endif /* NSIP */ 133 134 #ifdef TPIP 135 #include <netiso/tp_param.h> 136 #include <netiso/tp_var.h> 137 #endif /* TPIP */ 138 139 #ifdef EON 140 #include <netiso/eonvar.h> 141 #endif /* EON */ 142 143 #include "ipip.h" 144 #if NIPIP > 0 || defined(MROUTING) 145 #include <netinet/ip_ipip.h> 146 #endif /* NIPIP > 0 || MROUTING */ 147 148 #include "gre.h" 149 #if NGRE > 0 150 #include <netinet/ip_gre.h> 151 #endif 152 153 #include "stf.h" 154 #if NSTF > 0 155 #include <net/if_stf.h> 156 #endif 157 158 extern struct domain inetdomain; 159 160 struct protosw inetsw[] = { 161 { 0, &inetdomain, 0, 0, 162 0, ip_output, 0, 0, 163 0, 164 ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl 165 }, 166 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 167 udp_input, 0, udp_ctlinput, ip_ctloutput, 168 udp_usrreq, 169 udp_init, 0, 0, 0, udp_sysctl 170 }, 171 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS, 172 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 173 tcp_usrreq, 174 tcp_init, 0, tcp_slowtimo, tcp_drain, tcp_sysctl 175 }, 176 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 177 rip_input, rip_output, 0, rip_ctloutput, 178 rip_usrreq, 179 0, 0, 0, 0, 180 }, 181 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 182 icmp_input, rip_output, 0, rip_ctloutput, 183 rip_usrreq, 184 icmp_init, 0, 0, 0, icmp_sysctl 185 }, 186 #ifdef IPSEC 187 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 188 ah4_input, 0, ah4_ctlinput, 0, 189 0, 190 0, 0, 0, 0, ipsec_sysctl 191 }, 192 #ifdef IPSEC_ESP 193 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 194 esp4_input, 0, esp4_ctlinput, 0, 195 0, 196 0, 0, 0, 0, ipsec_sysctl 197 }, 198 #endif 199 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 200 ipcomp4_input, 0, 0, 0, 201 0, 202 0, 0, 0, 0, ipsec_sysctl 203 }, 204 #endif /* IPSEC */ 205 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 206 encap4_input, rip_output, 0, rip_ctloutput, 207 rip_usrreq, /*XXX*/ 208 encap_init, 0, 0, 0, 209 }, 210 #ifdef INET6 211 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 212 encap4_input, rip_output, 0, rip_ctloutput, 213 rip_usrreq, /*XXX*/ 214 0, 0, 0, 0, 215 }, 216 #endif /* INET6 */ 217 #if NGRE > 0 218 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 219 gre_input, rip_output, 0, rip_ctloutput, 220 rip_usrreq, 221 0, 0, 0, 0, 222 }, 223 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 224 gre_mobile_input, rip_output, 0, rip_ctloutput, 225 rip_usrreq, 226 0, 0, 0, 0, 227 }, 228 #endif /* NGRE > 0 */ 229 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 230 igmp_input, rip_output, 0, rip_ctloutput, 231 rip_usrreq, 232 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, 233 }, 234 #ifdef TPIP 235 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 236 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 237 tp_usrreq, 238 tp_init, 0, tp_slowtimo, tp_drain, 239 }, 240 #endif /* TPIP */ 241 #ifdef ISO 242 /* EON (ISO CLNL over IP) */ 243 #ifdef EON 244 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 245 eoninput, 0, eonctlinput, 0, 246 0, 247 eonprotoinit, 0, 0, 0, 248 }, 249 #else 250 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 251 encap4_input, rip_output, 0, rip_ctloutput, 252 rip_usrreq, /*XXX*/ 253 0, 0, 0, 0, 254 }, 255 #endif /* EON */ 256 #endif /* ISO */ 257 #ifdef NSIP 258 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 259 idpip_input, NULL, nsip_ctlinput, 0, 260 rip_usrreq, 261 0, 0, 0, 0, 262 }, 263 #endif /* NSIP */ 264 /* raw wildcard */ 265 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR, 266 rip_input, rip_output, 0, rip_ctloutput, 267 rip_usrreq, 268 rip_init, 0, 0, 0, 269 }, 270 }; 271 272 #if NIPIP > 0 273 struct protosw ipip_protosw = 274 { SOCK_RAW, &inetdomain, IPPROTO_IPIP, PR_ATOMIC|PR_ADDR, 275 ipip_input, rip_output, 0, rip_ctloutput, 276 rip_usrreq, /* XXX */ 277 0, 0, 0, 0, 278 }; 279 #endif /* NIPIP */ 280 281 #if NGIF > 0 282 struct protosw in_gif_protosw = 283 { SOCK_RAW, &inetdomain, 0/*IPPROTO_IPV[46]*/, PR_ATOMIC|PR_ADDR, 284 in_gif_input, rip_output, 0, rip_ctloutput, 285 rip_usrreq, 286 0, 0, 0, 0, 287 }; 288 #endif /*NGIF*/ 289 290 #if NSTF > 0 291 struct protosw in_stf_protosw = 292 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, 293 in_stf_input, rip_output, 0, rip_ctloutput, 294 rip_usrreq, 295 0, 0, 0, 0 296 }; 297 #endif /*NSTF*/ 298 299 struct domain inetdomain = 300 { PF_INET, "internet", 0, 0, 0, 301 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 302 rn_inithead, 32, sizeof(struct sockaddr_in) }; 303 304 u_char ip_protox[IPPROTO_MAX]; 305 306 int icmperrppslim = 100; /* 100pps */ 307
Indexes created Wed Oct 15 16:09:53 GMT 2025