in_proto.c revision 1.82
1 /* $NetBSD: in_proto.c,v 1.82 2007/03/04 23:53:36 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 1.82 2007/03/04 23:53:36 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 IPSEC 210 { .pr_type = SOCK_RAW, 211 .pr_domain = &inetdomain, 212 .pr_protocol = IPPROTO_AH, 213 .pr_flags = PR_ATOMIC|PR_ADDR, 214 .pr_input = ah4_input, 215 .pr_ctlinput = ah4_ctlinput, 216 }, 217 #ifdef IPSEC_ESP 218 { .pr_type = SOCK_RAW, 219 .pr_domain = &inetdomain, 220 .pr_protocol = IPPROTO_ESP, 221 .pr_flags = PR_ATOMIC|PR_ADDR, 222 .pr_input = esp4_input, 223 .pr_ctlinput = esp4_ctlinput, 224 }, 225 #endif /* IPSEC_ESP */ 226 { .pr_type = SOCK_RAW, 227 .pr_domain = &inetdomain, 228 .pr_protocol = IPPROTO_IPCOMP, 229 .pr_flags = PR_ATOMIC|PR_ADDR, 230 .pr_input = ipcomp4_input, 231 }, 232 #endif /* IPSEC */ 233 #ifdef FAST_IPSEC 234 { .pr_type = SOCK_RAW, 235 .pr_domain = &inetdomain, 236 .pr_protocol = IPPROTO_AH, 237 .pr_flags = PR_ATOMIC|PR_ADDR, 238 .pr_input = ipsec4_common_input, 239 .pr_ctlinput = ah4_ctlinput, 240 }, 241 { .pr_type = SOCK_RAW, 242 .pr_domain = &inetdomain, 243 .pr_protocol = IPPROTO_ESP, 244 .pr_flags = PR_ATOMIC|PR_ADDR, 245 .pr_input = ipsec4_common_input, 246 .pr_ctlinput = esp4_ctlinput, 247 }, 248 { .pr_type = SOCK_RAW, 249 .pr_domain = &inetdomain, 250 .pr_protocol = IPPROTO_IPCOMP, 251 .pr_flags = PR_ATOMIC|PR_ADDR, 252 .pr_input = ipsec4_common_input, 253 }, 254 #endif /* FAST_IPSEC */ 255 { .pr_type = SOCK_RAW, 256 .pr_domain = &inetdomain, 257 .pr_protocol = IPPROTO_IPV4, 258 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 259 .pr_input = encap4_input, 260 .pr_output = rip_output, 261 .pr_ctlinput = rip_ctlinput, 262 .pr_ctloutput = rip_ctloutput, 263 .pr_usrreq = rip_usrreq, 264 .pr_init = encap_init, 265 }, 266 #ifdef INET6 267 { .pr_type = SOCK_RAW, 268 .pr_domain = &inetdomain, 269 .pr_protocol = IPPROTO_IPV6, 270 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 271 .pr_input = encap4_input, 272 .pr_output = rip_output, 273 .pr_ctlinput = rip_ctlinput, 274 .pr_ctloutput = rip_ctloutput, 275 .pr_usrreq = rip_usrreq, 276 .pr_init = encap_init, 277 }, 278 #endif /* INET6 */ 279 #if NETHERIP > 0 280 { .pr_type = SOCK_RAW, 281 .pr_domain = &inetdomain, 282 .pr_protocol = IPPROTO_ETHERIP, 283 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 284 .pr_input = ip_etherip_input, 285 .pr_output = rip_output, 286 .pr_ctlinput = rip_ctlinput, 287 .pr_ctloutput = rip_ctloutput, 288 .pr_usrreq = rip_usrreq, 289 }, 290 #endif /* NETHERIP > 0 */ 291 #if NCARP > 0 292 { .pr_type = SOCK_RAW, 293 .pr_domain = &inetdomain, 294 .pr_protocol = IPPROTO_CARP, 295 .pr_flags = PR_ATOMIC|PR_ADDR, 296 .pr_input = carp_proto_input, 297 .pr_output = rip_output, 298 .pr_ctloutput = rip_ctloutput, 299 .pr_usrreq = rip_usrreq, 300 }, 301 #endif /* NCARP > 0 */ 302 #if NGRE > 0 303 { .pr_type = SOCK_RAW, 304 .pr_domain = &inetdomain, 305 .pr_protocol = IPPROTO_GRE, 306 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 307 .pr_input = gre_input, 308 .pr_output = rip_output, 309 .pr_ctloutput = rip_ctloutput, 310 .pr_ctlinput = rip_ctlinput, 311 .pr_usrreq = rip_usrreq, 312 }, 313 { .pr_type = SOCK_RAW, 314 .pr_domain = &inetdomain, 315 .pr_protocol = IPPROTO_MOBILE, 316 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 317 .pr_input = gre_mobile_input, 318 .pr_output = rip_output, 319 .pr_ctloutput = rip_ctloutput, 320 .pr_ctlinput = rip_ctlinput, 321 .pr_usrreq = rip_usrreq, 322 }, 323 #endif /* NGRE > 0 */ 324 { .pr_type = SOCK_RAW, 325 .pr_domain = &inetdomain, 326 .pr_protocol = IPPROTO_IGMP, 327 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 328 .pr_input = igmp_input, 329 .pr_output = rip_output, 330 .pr_ctloutput = rip_ctloutput, 331 .pr_ctlinput = rip_ctlinput, 332 .pr_usrreq = rip_usrreq, 333 .pr_fasttimo = igmp_fasttimo, 334 .pr_slowtimo = igmp_slowtimo, 335 }, 336 #ifdef PIM 337 { .pr_type = SOCK_RAW, 338 .pr_domain = &inetdomain, 339 .pr_protocol = IPPROTO_PIM, 340 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 341 .pr_input = pim_input, 342 .pr_output = rip_output, 343 .pr_ctloutput = rip_ctloutput, 344 .pr_ctlinput = rip_ctlinput, 345 .pr_usrreq = rip_usrreq, 346 }, 347 #endif /* PIM */ 348 #ifdef TPIP 349 { .pr_type = SOCK_SEQPACKET, 350 .pr_domain = &inetdomain, 351 .pr_protocol = IPPROTO_TP, 352 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 353 .pr_input = tpip_input, 354 .pr_ctloutput = tp_ctloutput, 355 .pr_ctlinput = tpip_ctlinput, 356 .pr_usrreq = tp_usrreq, 357 .pr_init = tp_init, 358 .pr_slowtimo = tp_slowtimo, 359 .pr_drain = tp_drain, 360 }, 361 #endif /* TPIP */ 362 #ifdef ISO 363 /* EON (ISO CLNL over IP) */ 364 #ifdef EON 365 { .pr_type = SOCK_RAW, 366 .pr_domain = &inetdomain, 367 .pr_protocol = IPPROTO_EON, 368 .pr_flags = PR_LASTHDR, 369 .pr_input = eoninput, 370 .pr_ctlinput = eonctlinput, 371 .pr_init = eonprotoinit, 372 }, 373 #else 374 { .pr_type = SOCK_RAW, 375 .pr_domain = &inetdomain, 376 .pr_protocol = IPPROTO_EON, 377 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 378 .pr_input = encap4_input, 379 .pr_output = rip_output, 380 .pr_ctloutput = rip_ctloutput, 381 .pr_ctlinput = rip_ctlinput, 382 .pr_usrreq = rip_usrreq, 383 .pr_init = encap_init, 384 }, 385 #endif /* EON */ 386 #endif /* ISO */ 387 /* raw wildcard */ 388 { .pr_type = SOCK_RAW, 389 .pr_domain = &inetdomain, 390 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 391 .pr_input = rip_input, 392 .pr_output = rip_output, 393 .pr_ctloutput = rip_ctloutput, 394 .pr_ctlinput = rip_ctlinput, 395 .pr_usrreq = rip_usrreq, 396 .pr_init = rip_init, 397 }, 398 }; 399 400 extern struct ifqueue ipintrq; 401 402 struct domain inetdomain = { 403 .dom_family = PF_INET, .dom_name = "internet", .dom_init = NULL, 404 .dom_externalize = NULL, .dom_dispose = NULL, 405 .dom_protosw = inetsw, 406 .dom_protoswNPROTOSW = &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 407 .dom_rtattach = rn_inithead, 408 .dom_rtoffset = 32, .dom_maxrtkey = sizeof(struct sockaddr_in), 409 #ifdef IPSELSRC 410 .dom_ifattach = in_domifattach, 411 .dom_ifdetach = in_domifdetach, 412 #else 413 .dom_ifattach = NULL, 414 .dom_ifdetach = NULL, 415 #endif 416 .dom_ifqueues = { &ipintrq, NULL }, 417 .dom_link = { NULL }, 418 .dom_mowner = MOWNER_INIT("",""), 419 .dom_rtcache = in_rtcache, 420 .dom_rtflush = in_rtflush, 421 .dom_rtflushall = in_rtflushall 422 }; 423 424 u_char ip_protox[IPPROTO_MAX]; 425 426 int icmperrppslim = 100; /* 100pps */ 427
Indexes created Thu Sep 25 14:09:45 GMT 2025