in_proto.c revision 1.83
1 /* $NetBSD: in_proto.c,v 1.83 2007/03/05 00:50:53 liamjfoy 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. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in_proto.c 8.2 (Berkeley) 2/9/95 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.83 2007/03/05 00:50:53 liamjfoy Exp $"); 65 66 #include "opt_mrouting.h" 67 #include "opt_eon.h" /* ISO CLNL over IP */ 68 #include "opt_iso.h" /* ISO TP tunneled over IP */ 69 #include "opt_inet.h" 70 #include "opt_ipsec.h" 71 #include "opt_pim.h" 72 73 #include <sys/param.h> 74 #include <sys/socket.h> 75 #include <sys/protosw.h> 76 #include <sys/domain.h> 77 #include <sys/mbuf.h> 78 79 #include <net/if.h> 80 #include <net/radix.h> 81 #include <net/route.h> 82 83 #include <netinet/in.h> 84 #include <netinet/in_systm.h> 85 #include <netinet/ip.h> 86 #include <netinet/ip_var.h> 87 #include <netinet/ip_icmp.h> 88 #include <netinet/in_ifattach.h> 89 #include <netinet/in_pcb.h> 90 #include <netinet/in_proto.h> 91 #include <netinet/in_route.h> 92 93 #ifdef INET6 94 #ifndef INET 95 #include <netinet/in.h> 96 #endif 97 #include <netinet/ip6.h> 98 #endif 99 100 #include <netinet/igmp_var.h> 101 #ifdef PIM 102 #include <netinet/pim_var.h> 103 #endif 104 #include <netinet/tcp.h> 105 #include <netinet/tcp_fsm.h> 106 #include <netinet/tcp_seq.h> 107 #include <netinet/tcp_timer.h> 108 #include <netinet/tcp_var.h> 109 #include <netinet/tcpip.h> 110 #include <netinet/tcp_debug.h> 111 #include <netinet/udp.h> 112 #include <netinet/udp_var.h> 113 #include <netinet/ip_encap.h> 114 115 /* 116 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 117 */ 118 119 #ifdef IPSEC 120 #include <netinet6/ipsec.h> 121 #include <netinet6/ah.h> 122 #ifdef IPSEC_ESP 123 #include <netinet6/esp.h> 124 #endif 125 #include <netinet6/ipcomp.h> 126 #endif /* IPSEC */ 127 128 #ifdef FAST_IPSEC 129 #include <netipsec/ipsec.h> 130 #include <netipsec/key.h> 131 #endif /* FAST_IPSEC */ 132 133 #ifdef TPIP 134 #include <netiso/tp_param.h> 135 #include <netiso/tp_var.h> 136 #endif /* TPIP */ 137 138 #ifdef EON 139 #include <netiso/eonvar.h> 140 #endif /* EON */ 141 142 #include "gre.h" 143 #if NGRE > 0 144 #include <netinet/ip_gre.h> 145 #endif 146 147 #include "carp.h" 148 #if NCARP > 0 149 #include <netinet/ip_carp.h> 150 #endif 151 152 #include "etherip.h" 153 #if NETHERIP > 0 154 #include <netinet/ip_etherip.h> 155 #endif 156 157 DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */ 158 159 const struct protosw inetsw[] = { 160 { .pr_domain = &inetdomain, 161 .pr_init = ip_init, 162 .pr_output = ip_output, 163 .pr_slowtimo = ip_slowtimo, 164 .pr_drain = ip_drain, 165 }, 166 { .pr_type = SOCK_DGRAM, 167 .pr_domain = &inetdomain, 168 .pr_protocol = IPPROTO_UDP, 169 .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, 170 .pr_input = udp_input, 171 .pr_ctlinput = udp_ctlinput, 172 .pr_ctloutput = udp_ctloutput, 173 .pr_usrreq = udp_usrreq, 174 .pr_init = udp_init, 175 }, 176 { .pr_type = SOCK_STREAM, 177 .pr_domain = &inetdomain, 178 .pr_protocol = IPPROTO_TCP, 179 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, 180 .pr_input = tcp_input, 181 .pr_ctlinput = tcp_ctlinput, 182 .pr_ctloutput = tcp_ctloutput, 183 .pr_usrreq = tcp_usrreq, 184 .pr_init = tcp_init, 185 .pr_slowtimo = tcp_slowtimo, 186 .pr_drain = tcp_drain, 187 }, 188 { .pr_type = SOCK_RAW, 189 .pr_domain = &inetdomain, 190 .pr_protocol = IPPROTO_RAW, 191 .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, 192 .pr_input = rip_input, 193 .pr_output = rip_output, 194 .pr_ctlinput = rip_ctlinput, 195 .pr_ctloutput = rip_ctloutput, 196 .pr_usrreq = rip_usrreq, 197 }, 198 { .pr_type = SOCK_RAW, 199 .pr_domain = &inetdomain, 200 .pr_protocol = IPPROTO_ICMP, 201 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 202 .pr_input = icmp_input, 203 .pr_output = rip_output, 204 .pr_ctlinput = rip_ctlinput, 205 .pr_ctloutput = rip_ctloutput, 206 .pr_usrreq = rip_usrreq, 207 .pr_init = icmp_init, 208 }, 209 #ifdef GATEWAY 210 { .pr_domain = &inetdomain, 211 .pr_protocol = IPPROTO_IP, 212 .pr_slowtimo = ipflow_slowtimo, 213 }, 214 #endif /* GATEWAY */ 215 #ifdef IPSEC 216 { .pr_type = SOCK_RAW, 217 .pr_domain = &inetdomain, 218 .pr_protocol = IPPROTO_AH, 219 .pr_flags = PR_ATOMIC|PR_ADDR, 220 .pr_input = ah4_input, 221 .pr_ctlinput = ah4_ctlinput, 222 }, 223 #ifdef IPSEC_ESP 224 { .pr_type = SOCK_RAW, 225 .pr_domain = &inetdomain, 226 .pr_protocol = IPPROTO_ESP, 227 .pr_flags = PR_ATOMIC|PR_ADDR, 228 .pr_input = esp4_input, 229 .pr_ctlinput = esp4_ctlinput, 230 }, 231 #endif /* IPSEC_ESP */ 232 { .pr_type = SOCK_RAW, 233 .pr_domain = &inetdomain, 234 .pr_protocol = IPPROTO_IPCOMP, 235 .pr_flags = PR_ATOMIC|PR_ADDR, 236 .pr_input = ipcomp4_input, 237 }, 238 #endif /* IPSEC */ 239 #ifdef FAST_IPSEC 240 { .pr_type = SOCK_RAW, 241 .pr_domain = &inetdomain, 242 .pr_protocol = IPPROTO_AH, 243 .pr_flags = PR_ATOMIC|PR_ADDR, 244 .pr_input = ipsec4_common_input, 245 .pr_ctlinput = ah4_ctlinput, 246 }, 247 { .pr_type = SOCK_RAW, 248 .pr_domain = &inetdomain, 249 .pr_protocol = IPPROTO_ESP, 250 .pr_flags = PR_ATOMIC|PR_ADDR, 251 .pr_input = ipsec4_common_input, 252 .pr_ctlinput = esp4_ctlinput, 253 }, 254 { .pr_type = SOCK_RAW, 255 .pr_domain = &inetdomain, 256 .pr_protocol = IPPROTO_IPCOMP, 257 .pr_flags = PR_ATOMIC|PR_ADDR, 258 .pr_input = ipsec4_common_input, 259 }, 260 #endif /* FAST_IPSEC */ 261 { .pr_type = SOCK_RAW, 262 .pr_domain = &inetdomain, 263 .pr_protocol = IPPROTO_IPV4, 264 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 265 .pr_input = encap4_input, 266 .pr_output = rip_output, 267 .pr_ctlinput = rip_ctlinput, 268 .pr_ctloutput = rip_ctloutput, 269 .pr_usrreq = rip_usrreq, 270 .pr_init = encap_init, 271 }, 272 #ifdef INET6 273 { .pr_type = SOCK_RAW, 274 .pr_domain = &inetdomain, 275 .pr_protocol = IPPROTO_IPV6, 276 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 277 .pr_input = encap4_input, 278 .pr_output = rip_output, 279 .pr_ctlinput = rip_ctlinput, 280 .pr_ctloutput = rip_ctloutput, 281 .pr_usrreq = rip_usrreq, 282 .pr_init = encap_init, 283 }, 284 #endif /* INET6 */ 285 #if NETHERIP > 0 286 { .pr_type = SOCK_RAW, 287 .pr_domain = &inetdomain, 288 .pr_protocol = IPPROTO_ETHERIP, 289 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 290 .pr_input = ip_etherip_input, 291 .pr_output = rip_output, 292 .pr_ctlinput = rip_ctlinput, 293 .pr_ctloutput = rip_ctloutput, 294 .pr_usrreq = rip_usrreq, 295 }, 296 #endif /* NETHERIP > 0 */ 297 #if NCARP > 0 298 { .pr_type = SOCK_RAW, 299 .pr_domain = &inetdomain, 300 .pr_protocol = IPPROTO_CARP, 301 .pr_flags = PR_ATOMIC|PR_ADDR, 302 .pr_input = carp_proto_input, 303 .pr_output = rip_output, 304 .pr_ctloutput = rip_ctloutput, 305 .pr_usrreq = rip_usrreq, 306 }, 307 #endif /* NCARP > 0 */ 308 #if NGRE > 0 309 { .pr_type = SOCK_RAW, 310 .pr_domain = &inetdomain, 311 .pr_protocol = IPPROTO_GRE, 312 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 313 .pr_input = gre_input, 314 .pr_output = rip_output, 315 .pr_ctloutput = rip_ctloutput, 316 .pr_ctlinput = rip_ctlinput, 317 .pr_usrreq = rip_usrreq, 318 }, 319 { .pr_type = SOCK_RAW, 320 .pr_domain = &inetdomain, 321 .pr_protocol = IPPROTO_MOBILE, 322 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 323 .pr_input = gre_mobile_input, 324 .pr_output = rip_output, 325 .pr_ctloutput = rip_ctloutput, 326 .pr_ctlinput = rip_ctlinput, 327 .pr_usrreq = rip_usrreq, 328 }, 329 #endif /* NGRE > 0 */ 330 { .pr_type = SOCK_RAW, 331 .pr_domain = &inetdomain, 332 .pr_protocol = IPPROTO_IGMP, 333 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 334 .pr_input = igmp_input, 335 .pr_output = rip_output, 336 .pr_ctloutput = rip_ctloutput, 337 .pr_ctlinput = rip_ctlinput, 338 .pr_usrreq = rip_usrreq, 339 .pr_fasttimo = igmp_fasttimo, 340 .pr_slowtimo = igmp_slowtimo, 341 }, 342 #ifdef PIM 343 { .pr_type = SOCK_RAW, 344 .pr_domain = &inetdomain, 345 .pr_protocol = IPPROTO_PIM, 346 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 347 .pr_input = pim_input, 348 .pr_output = rip_output, 349 .pr_ctloutput = rip_ctloutput, 350 .pr_ctlinput = rip_ctlinput, 351 .pr_usrreq = rip_usrreq, 352 }, 353 #endif /* PIM */ 354 #ifdef TPIP 355 { .pr_type = SOCK_SEQPACKET, 356 .pr_domain = &inetdomain, 357 .pr_protocol = IPPROTO_TP, 358 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 359 .pr_input = tpip_input, 360 .pr_ctloutput = tp_ctloutput, 361 .pr_ctlinput = tpip_ctlinput, 362 .pr_usrreq = tp_usrreq, 363 .pr_init = tp_init, 364 .pr_slowtimo = tp_slowtimo, 365 .pr_drain = tp_drain, 366 }, 367 #endif /* TPIP */ 368 #ifdef ISO 369 /* EON (ISO CLNL over IP) */ 370 #ifdef EON 371 { .pr_type = SOCK_RAW, 372 .pr_domain = &inetdomain, 373 .pr_protocol = IPPROTO_EON, 374 .pr_flags = PR_LASTHDR, 375 .pr_input = eoninput, 376 .pr_ctlinput = eonctlinput, 377 .pr_init = eonprotoinit, 378 }, 379 #else 380 { .pr_type = SOCK_RAW, 381 .pr_domain = &inetdomain, 382 .pr_protocol = IPPROTO_EON, 383 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 384 .pr_input = encap4_input, 385 .pr_output = rip_output, 386 .pr_ctloutput = rip_ctloutput, 387 .pr_ctlinput = rip_ctlinput, 388 .pr_usrreq = rip_usrreq, 389 .pr_init = encap_init, 390 }, 391 #endif /* EON */ 392 #endif /* ISO */ 393 /* raw wildcard */ 394 { .pr_type = SOCK_RAW, 395 .pr_domain = &inetdomain, 396 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 397 .pr_input = rip_input, 398 .pr_output = rip_output, 399 .pr_ctloutput = rip_ctloutput, 400 .pr_ctlinput = rip_ctlinput, 401 .pr_usrreq = rip_usrreq, 402 .pr_init = rip_init, 403 }, 404 }; 405 406 extern struct ifqueue ipintrq; 407 408 struct domain inetdomain = { 409 .dom_family = PF_INET, .dom_name = "internet", .dom_init = NULL, 410 .dom_externalize = NULL, .dom_dispose = NULL, 411 .dom_protosw = inetsw, 412 .dom_protoswNPROTOSW = &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 413 .dom_rtattach = rn_inithead, 414 .dom_rtoffset = 32, .dom_maxrtkey = sizeof(struct sockaddr_in), 415 #ifdef IPSELSRC 416 .dom_ifattach = in_domifattach, 417 .dom_ifdetach = in_domifdetach, 418 #else 419 .dom_ifattach = NULL, 420 .dom_ifdetach = NULL, 421 #endif 422 .dom_ifqueues = { &ipintrq, NULL }, 423 .dom_link = { NULL }, 424 .dom_mowner = MOWNER_INIT("",""), 425 .dom_rtcache = in_rtcache, 426 .dom_rtflush = in_rtflush, 427 .dom_rtflushall = in_rtflushall 428 }; 429 430 u_char ip_protox[IPPROTO_MAX]; 431 432 int icmperrppslim = 100; /* 100pps */ 433
Indexes created Tue Sep 23 21:09:50 GMT 2025