| 1 | /* $NetBSD: in6_proto.c,v 1.113 2016/07/06 10:49:49 ozaki-r Exp $ */ |
| 2 | /* $KAME: in6_proto.c,v 1.66 2000/10/10 15:35:47 itojun Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the name of the project nor the names of its contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 30 | * SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | /* |
| 34 | * Copyright (c) 1982, 1986, 1993 |
| 35 | * The Regents of the University of California. All rights reserved. |
| 36 | * |
| 37 | * Redistribution and use in source and binary forms, with or without |
| 38 | * modification, are permitted provided that the following conditions |
| 39 | * are met: |
| 40 | * 1. Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * 2. Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in the |
| 44 | * documentation and/or other materials provided with the distribution. |
| 45 | * 3. Neither the name of the University nor the names of its contributors |
| 46 | * may be used to endorse or promote products derived from this software |
| 47 | * without specific prior written permission. |
| 48 | * |
| 49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 59 | * SUCH DAMAGE. |
| 60 | * |
| 61 | * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 |
| 62 | */ |
| 63 | |
| 64 | #include <sys/cdefs.h> |
| 65 | __KERNEL_RCSID(0, "$NetBSD: in6_proto.c,v 1.113 2016/07/06 10:49:49 ozaki-r Exp $" ); |
| 66 | |
| 67 | #ifdef _KERNEL_OPT |
| 68 | #include "opt_gateway.h" |
| 69 | #include "opt_inet.h" |
| 70 | #include "opt_ipsec.h" |
| 71 | #include "opt_dccp.h" |
| 72 | #include "opt_sctp.h" |
| 73 | #endif |
| 74 | |
| 75 | #include <sys/param.h> |
| 76 | #include <sys/socket.h> |
| 77 | #include <sys/protosw.h> |
| 78 | #include <sys/kernel.h> |
| 79 | #include <sys/domain.h> |
| 80 | #include <sys/mbuf.h> |
| 81 | |
| 82 | #include <net/if.h> |
| 83 | |
| 84 | #include <netinet/in.h> |
| 85 | #include <netinet/in_systm.h> |
| 86 | #include <netinet/in_var.h> |
| 87 | #include <netinet/ip_encap.h> |
| 88 | #include <netinet/ip.h> |
| 89 | #include <netinet/ip_var.h> |
| 90 | #include <netinet/in_pcb.h> |
| 91 | #include <netinet/ip6.h> |
| 92 | #include <netinet6/ip6_var.h> |
| 93 | #include <netinet/icmp6.h> |
| 94 | #include <netinet6/in6_pcb.h> |
| 95 | |
| 96 | #include <netinet/tcp.h> |
| 97 | #include <netinet/tcp_fsm.h> |
| 98 | #include <netinet/tcp_seq.h> |
| 99 | #include <netinet/tcp_timer.h> |
| 100 | #include <netinet/tcp_var.h> |
| 101 | #include <netinet/tcpip.h> |
| 102 | #include <netinet/tcp_debug.h> |
| 103 | |
| 104 | #include <netinet6/udp6.h> |
| 105 | #include <netinet6/udp6_var.h> |
| 106 | |
| 107 | #ifdef DCCP |
| 108 | #include <netinet/dccp.h> |
| 109 | #include <netinet/dccp_var.h> |
| 110 | #include <netinet6/dccp6_var.h> |
| 111 | #endif |
| 112 | |
| 113 | #ifdef SCTP |
| 114 | #include <netinet/sctp_pcb.h> |
| 115 | #include <netinet/sctp.h> |
| 116 | #include <netinet/sctp_var.h> |
| 117 | #include <netinet6/sctp6_var.h> |
| 118 | #endif |
| 119 | |
| 120 | #include <netinet6/pim6_var.h> |
| 121 | |
| 122 | #include <netinet6/nd6.h> |
| 123 | |
| 124 | #ifdef IPSEC |
| 125 | #include <netipsec/ipsec.h> |
| 126 | #include <netipsec/ipsec6.h> |
| 127 | #include <netipsec/key.h> |
| 128 | #endif /* IPSEC */ |
| 129 | |
| 130 | |
| 131 | #include "carp.h" |
| 132 | #if NCARP > 0 |
| 133 | #include <netinet/ip_carp.h> |
| 134 | #endif |
| 135 | |
| 136 | #include "etherip.h" |
| 137 | #if NETHERIP > 0 |
| 138 | #include <netinet6/ip6_etherip.h> |
| 139 | #endif |
| 140 | |
| 141 | #include <netinet6/ip6protosw.h> |
| 142 | |
| 143 | #include <net/net_osdep.h> |
| 144 | |
| 145 | /* |
| 146 | * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. |
| 147 | */ |
| 148 | |
| 149 | DOMAIN_DEFINE(inet6domain); /* forward declare and add to link set */ |
| 150 | |
| 151 | /* Wrappers to acquire kernel_lock. */ |
| 152 | |
| 153 | PR_WRAP_CTLINPUT(rip6_ctlinput) |
| 154 | PR_WRAP_CTLINPUT(encap6_ctlinput) |
| 155 | PR_WRAP_CTLINPUT(udp6_ctlinput) |
| 156 | PR_WRAP_CTLINPUT(tcp6_ctlinput) |
| 157 | |
| 158 | #define rip6_ctlinput rip6_ctlinput_wrapper |
| 159 | #define encap6_ctlinput encap6_ctlinput_wrapper |
| 160 | #define udp6_ctlinput udp6_ctlinput_wrapper |
| 161 | #define tcp6_ctlinput tcp6_ctlinput_wrapper |
| 162 | |
| 163 | PR_WRAP_CTLOUTPUT(rip6_ctloutput) |
| 164 | PR_WRAP_CTLOUTPUT(tcp_ctloutput) |
| 165 | PR_WRAP_CTLOUTPUT(udp6_ctloutput) |
| 166 | PR_WRAP_CTLOUTPUT(icmp6_ctloutput) |
| 167 | |
| 168 | #define rip6_ctloutput rip6_ctloutput_wrapper |
| 169 | #define tcp_ctloutput tcp_ctloutput_wrapper |
| 170 | #define udp6_ctloutput udp6_ctloutput_wrapper |
| 171 | #define icmp6_ctloutput icmp6_ctloutput_wrapper |
| 172 | |
| 173 | #if defined(DCCP) |
| 174 | PR_WRAP_CTLINPUT(dccp6_ctlinput) |
| 175 | PR_WRAP_CTLOUTPUT(dccp_ctloutput) |
| 176 | |
| 177 | #define dccp6_ctlinput dccp6_ctlinput_wrapper |
| 178 | #define dccp_ctloutput dccp_ctloutput_wrapper |
| 179 | #endif |
| 180 | |
| 181 | #if defined(SCTP) |
| 182 | PR_WRAP_CTLINPUT(sctp6_ctlinput) |
| 183 | PR_WRAP_CTLOUTPUT(sctp_ctloutput) |
| 184 | |
| 185 | #define sctp6_ctlinput sctp6_ctlinput_wrapper |
| 186 | #define sctp_ctloutput sctp_ctloutput_wrapper |
| 187 | #endif |
| 188 | |
| 189 | #if defined(IPSEC) |
| 190 | PR_WRAP_CTLINPUT(ah6_ctlinput) |
| 191 | |
| 192 | #define ah6_ctlinput ah6_ctlinput_wrapper |
| 193 | #endif |
| 194 | |
| 195 | #if defined(IPSEC) |
| 196 | PR_WRAP_CTLINPUT(esp6_ctlinput) |
| 197 | |
| 198 | #define esp6_ctlinput esp6_ctlinput_wrapper |
| 199 | #endif |
| 200 | |
| 201 | static void |
| 202 | tcp6_init(void) |
| 203 | { |
| 204 | |
| 205 | icmp6_mtudisc_callback_register(tcp6_mtudisc_callback); |
| 206 | |
| 207 | tcp_init_common(sizeof(struct ip6_hdr)); |
| 208 | } |
| 209 | |
| 210 | const struct ip6protosw inet6sw[] = { |
| 211 | { .pr_domain = &inet6domain, |
| 212 | .pr_protocol = IPPROTO_IPV6, |
| 213 | .pr_init = ip6_init, |
| 214 | .pr_fasttimo = frag6_fasttimo, |
| 215 | .pr_slowtimo = frag6_slowtimo, |
| 216 | .pr_drain = frag6_drainstub, |
| 217 | }, |
| 218 | { .pr_type = SOCK_DGRAM, |
| 219 | .pr_domain = &inet6domain, |
| 220 | .pr_protocol = IPPROTO_UDP, |
| 221 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, |
| 222 | .pr_input = udp6_input, |
| 223 | .pr_ctlinput = udp6_ctlinput, |
| 224 | .pr_ctloutput = udp6_ctloutput, |
| 225 | .pr_usrreqs = &udp6_usrreqs, |
| 226 | .pr_init = udp6_init, |
| 227 | }, |
| 228 | { .pr_type = SOCK_STREAM, |
| 229 | .pr_domain = &inet6domain, |
| 230 | .pr_protocol = IPPROTO_TCP, |
| 231 | .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, |
| 232 | .pr_input = tcp6_input, |
| 233 | .pr_ctlinput = tcp6_ctlinput, |
| 234 | .pr_ctloutput = tcp_ctloutput, |
| 235 | .pr_usrreqs = &tcp_usrreqs, |
| 236 | .pr_init = tcp6_init, |
| 237 | .pr_fasttimo = tcp_fasttimo, |
| 238 | .pr_drain = tcp_drainstub, |
| 239 | }, |
| 240 | #ifdef DCCP |
| 241 | { .pr_type = SOCK_CONN_DGRAM, |
| 242 | .pr_domain = &inet6domain, |
| 243 | .pr_protocol = IPPROTO_DCCP, |
| 244 | .pr_flags = PR_CONNREQUIRED|PR_ATOMIC|PR_LISTEN, |
| 245 | .pr_input = dccp6_input, |
| 246 | .pr_ctlinput = dccp6_ctlinput, |
| 247 | .pr_ctloutput = dccp_ctloutput, |
| 248 | .pr_usrreqs = &dccp6_usrreqs, |
| 249 | #ifndef INET |
| 250 | .pr_init = dccp_init, |
| 251 | #endif |
| 252 | }, |
| 253 | #endif /* DCCP */ |
| 254 | #ifdef SCTP |
| 255 | { .pr_type = SOCK_DGRAM, |
| 256 | .pr_domain = &inet6domain, |
| 257 | .pr_protocol = IPPROTO_SCTP, |
| 258 | .pr_flags = PR_ADDR_OPT|PR_WANTRCVD, |
| 259 | .pr_input = sctp6_input, |
| 260 | .pr_ctlinput = sctp6_ctlinput, |
| 261 | .pr_ctloutput = sctp_ctloutput, |
| 262 | .pr_usrreqs = &sctp6_usrreqs, |
| 263 | .pr_drain = sctp_drain, |
| 264 | }, |
| 265 | { .pr_type = SOCK_SEQPACKET, |
| 266 | .pr_domain = &inet6domain, |
| 267 | .pr_protocol = IPPROTO_SCTP, |
| 268 | .pr_flags = PR_ADDR_OPT|PR_WANTRCVD, |
| 269 | .pr_input = sctp6_input, |
| 270 | .pr_ctlinput = sctp6_ctlinput, |
| 271 | .pr_ctloutput = sctp_ctloutput, |
| 272 | .pr_drain = sctp_drain, |
| 273 | }, |
| 274 | { .pr_type = SOCK_STREAM, |
| 275 | .pr_domain = &inet6domain, |
| 276 | .pr_protocol = IPPROTO_SCTP, |
| 277 | .pr_flags = PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD|PR_LISTEN, |
| 278 | .pr_input = sctp6_input, |
| 279 | .pr_ctlinput = sctp6_ctlinput, |
| 280 | .pr_ctloutput = sctp_ctloutput, |
| 281 | .pr_drain = sctp_drain, |
| 282 | }, |
| 283 | #endif /* SCTP */ |
| 284 | { .pr_type = SOCK_RAW, |
| 285 | .pr_domain = &inet6domain, |
| 286 | .pr_protocol = IPPROTO_RAW, |
| 287 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, |
| 288 | .pr_input = rip6_input, |
| 289 | .pr_ctlinput = rip6_ctlinput, |
| 290 | .pr_ctloutput = rip6_ctloutput, |
| 291 | .pr_usrreqs = &rip6_usrreqs, |
| 292 | }, |
| 293 | #ifdef GATEWAY |
| 294 | { .pr_domain = &inet6domain, |
| 295 | .pr_protocol = IPPROTO_IPV6, |
| 296 | .pr_slowtimo = ip6flow_slowtimo, |
| 297 | .pr_init = ip6flow_poolinit, |
| 298 | }, |
| 299 | #endif /* GATEWAY */ |
| 300 | { .pr_type = SOCK_RAW, |
| 301 | .pr_domain = &inet6domain, |
| 302 | .pr_protocol = IPPROTO_ICMPV6, |
| 303 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 304 | .pr_input = icmp6_input, |
| 305 | .pr_ctlinput = rip6_ctlinput, |
| 306 | .pr_ctloutput = icmp6_ctloutput, |
| 307 | .pr_usrreqs = &rip6_usrreqs, |
| 308 | .pr_init = icmp6_init, |
| 309 | }, |
| 310 | { .pr_type = SOCK_RAW, |
| 311 | .pr_domain = &inet6domain, |
| 312 | .pr_protocol = IPPROTO_DSTOPTS, |
| 313 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 314 | .pr_input = dest6_input, |
| 315 | }, |
| 316 | { .pr_type = SOCK_RAW, |
| 317 | .pr_domain = &inet6domain, |
| 318 | .pr_protocol = IPPROTO_ROUTING, |
| 319 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 320 | .pr_input = route6_input, |
| 321 | }, |
| 322 | { .pr_type = SOCK_RAW, |
| 323 | .pr_domain = &inet6domain, |
| 324 | .pr_protocol = IPPROTO_FRAGMENT, |
| 325 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 326 | .pr_input = frag6_input, |
| 327 | }, |
| 328 | #ifdef IPSEC |
| 329 | { .pr_type = SOCK_RAW, |
| 330 | .pr_domain = &inet6domain, |
| 331 | .pr_protocol = IPPROTO_AH, |
| 332 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 333 | .pr_input = ipsec6_common_input, |
| 334 | .pr_ctlinput = ah6_ctlinput, |
| 335 | }, |
| 336 | { .pr_type = SOCK_RAW, |
| 337 | .pr_domain = &inet6domain, |
| 338 | .pr_protocol = IPPROTO_ESP, |
| 339 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 340 | .pr_input = ipsec6_common_input, |
| 341 | .pr_ctlinput = esp6_ctlinput, |
| 342 | }, |
| 343 | { .pr_type = SOCK_RAW, |
| 344 | .pr_domain = &inet6domain, |
| 345 | .pr_protocol = IPPROTO_IPCOMP, |
| 346 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 347 | .pr_input = ipsec6_common_input, |
| 348 | }, |
| 349 | #endif /* IPSEC */ |
| 350 | #ifdef INET |
| 351 | { .pr_type = SOCK_RAW, |
| 352 | .pr_domain = &inet6domain, |
| 353 | .pr_protocol = IPPROTO_IPV4, |
| 354 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 355 | .pr_input = encap6_input, |
| 356 | .pr_ctlinput = encap6_ctlinput, |
| 357 | .pr_ctloutput = rip6_ctloutput, |
| 358 | .pr_usrreqs = &rip6_usrreqs, |
| 359 | .pr_init = encap_init, |
| 360 | }, |
| 361 | #endif |
| 362 | { .pr_type = SOCK_RAW, |
| 363 | .pr_domain = &inet6domain, |
| 364 | .pr_protocol = IPPROTO_IPV6, |
| 365 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 366 | .pr_input = encap6_input, |
| 367 | .pr_ctlinput = encap6_ctlinput, |
| 368 | .pr_ctloutput = rip6_ctloutput, |
| 369 | .pr_usrreqs = &rip6_usrreqs, |
| 370 | .pr_init = encap_init, |
| 371 | }, |
| 372 | #if NETHERIP > 0 |
| 373 | { .pr_type = SOCK_RAW, |
| 374 | .pr_domain = &inet6domain, |
| 375 | .pr_protocol = IPPROTO_ETHERIP, |
| 376 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 377 | .pr_input = ip6_etherip_input, |
| 378 | .pr_ctlinput = rip6_ctlinput, |
| 379 | .pr_ctloutput = rip6_ctloutput, |
| 380 | .pr_usrreqs = &rip6_usrreqs, |
| 381 | }, |
| 382 | #endif |
| 383 | #if NCARP > 0 |
| 384 | { .pr_type = SOCK_RAW, |
| 385 | .pr_domain = &inet6domain, |
| 386 | .pr_protocol = IPPROTO_CARP, |
| 387 | .pr_flags = PR_ATOMIC|PR_ADDR, |
| 388 | .pr_input = carp6_proto_input, |
| 389 | .pr_ctloutput = rip6_ctloutput, |
| 390 | .pr_usrreqs = &rip6_usrreqs, |
| 391 | }, |
| 392 | #endif /* NCARP */ |
| 393 | { .pr_type = SOCK_RAW, |
| 394 | .pr_domain = &inet6domain, |
| 395 | .pr_protocol = IPPROTO_PIM, |
| 396 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 397 | .pr_input = pim6_input, |
| 398 | .pr_ctloutput = rip6_ctloutput, |
| 399 | .pr_usrreqs = &rip6_usrreqs, |
| 400 | .pr_init = pim6_init, |
| 401 | }, |
| 402 | /* raw wildcard */ |
| 403 | { .pr_type = SOCK_RAW, |
| 404 | .pr_domain = &inet6domain, |
| 405 | .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
| 406 | .pr_input = rip6_input, |
| 407 | .pr_ctloutput = rip6_ctloutput, |
| 408 | .pr_usrreqs = &rip6_usrreqs, |
| 409 | .pr_init = rip6_init, |
| 410 | }, |
| 411 | }; |
| 412 | |
| 413 | static const struct sockaddr_in6 in6_any = { |
| 414 | .sin6_len = sizeof(in6_any) |
| 415 | , .sin6_family = AF_INET6 |
| 416 | , .sin6_port = 0 |
| 417 | , .sin6_flowinfo = 0 |
| 418 | , .sin6_addr = IN6ADDR_ANY_INIT |
| 419 | , .sin6_scope_id = 0 |
| 420 | }; |
| 421 | |
| 422 | bool in6_present = false; |
| 423 | static void |
| 424 | in6_dom_init(void) |
| 425 | { |
| 426 | |
| 427 | in6_present = true; |
| 428 | } |
| 429 | |
| 430 | struct domain inet6domain = { |
| 431 | .dom_family = AF_INET6, .dom_name = "internet6" , |
| 432 | .dom_init = in6_dom_init, .dom_externalize = NULL, .dom_dispose = NULL, |
| 433 | .dom_protosw = (const struct protosw *)inet6sw, |
| 434 | .dom_protoswNPROTOSW = (const struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], |
| 435 | .dom_rtattach = rt_inithead, |
| 436 | .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, |
| 437 | .dom_maxrtkey = sizeof(struct ip_pack6), |
| 438 | .dom_if_up = in6_if_up, .dom_if_down = in6_if_down, |
| 439 | .dom_ifattach = in6_domifattach, .dom_ifdetach = in6_domifdetach, |
| 440 | .dom_if_link_state_change = in6_if_link_state_change, |
| 441 | .dom_ifqueues = { NULL, NULL }, |
| 442 | .dom_link = { NULL }, |
| 443 | .dom_mowner = MOWNER_INIT("" ,"" ), |
| 444 | .dom_sa_cmpofs = offsetof(struct sockaddr_in6, sin6_addr), |
| 445 | .dom_sa_cmplen = sizeof(struct in6_addr), |
| 446 | .dom_sa_any = (const struct sockaddr *)&in6_any, |
| 447 | .dom_sockaddr_externalize = sockaddr_in6_externalize, |
| 448 | .dom_rtcache = LIST_HEAD_INITIALIZER(inet6domain.dom_rtcache) |
| 449 | }; |
| 450 | |
| 451 | #if 0 |
| 452 | int |
| 453 | sockaddr_in6_cmp(const struct sockaddr *lsa, const struct sockaddr *rsa) |
| 454 | { |
| 455 | uint_fast8_t len; |
| 456 | const uint_fast8_t addrofs = offsetof(struct sockaddr_in6, sin6_addr), |
| 457 | addrend = addrofs + sizeof(struct in6_addr); |
| 458 | int rc; |
| 459 | const struct sockaddr_in6 *lsin6, *rsin6; |
| 460 | |
| 461 | lsin6 = satocsin6(lsa); |
| 462 | rsin6 = satocsin6(rsa); |
| 463 | |
| 464 | len = MIN(addrend, MIN(lsin6->sin6_len, rsin6->sin6_len)); |
| 465 | |
| 466 | if (len > addrofs && |
| 467 | (rc = memcmp(&lsin6->sin6_addr, &rsin6->sin6_addr, |
| 468 | len - addrofs)) != 0) |
| 469 | return rc; |
| 470 | |
| 471 | return lsin6->sin6_len - rsin6->sin6_len; |
| 472 | } |
| 473 | #endif |
| 474 | |
| 475 | /* |
| 476 | * Internet configuration info |
| 477 | */ |
| 478 | #ifndef IPV6FORWARDING |
| 479 | #ifdef GATEWAY6 |
| 480 | #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ |
| 481 | #else |
| 482 | #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ |
| 483 | #endif /* GATEWAY6 */ |
| 484 | #endif /* !IPV6FORWARDING */ |
| 485 | |
| 486 | int ip6_forwarding = IPV6FORWARDING; /* act as router? */ |
| 487 | int ip6_sendredirects = 1; |
| 488 | int ip6_defhlim = IPV6_DEFHLIM; |
| 489 | int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; |
| 490 | int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ |
| 491 | int ip6_maxfragpackets = 200; |
| 492 | int ip6_maxfrags = 200; |
| 493 | int ip6_log_interval = 5; |
| 494 | int ip6_hdrnestlimit = 50; /* appropriate? */ |
| 495 | int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ |
| 496 | int ip6_auto_flowlabel = 1; |
| 497 | int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ |
| 498 | int ip6_rr_prune = 5; /* router renumbering prefix |
| 499 | * walk list every 5 sec. */ |
| 500 | int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ |
| 501 | int ip6_v6only = 1; |
| 502 | int ip6_neighborgcthresh = 2048; /* Threshold # of NDP entries for GC */ |
| 503 | int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */ |
| 504 | int ip6_maxifdefrouters = 16; /* Max acceptable def routers via RA */ |
| 505 | int ip6_maxdynroutes = 4096; /* Max # of routes created via redirect */ |
| 506 | |
| 507 | int ip6_keepfaith = 0; |
| 508 | time_t ip6_log_time = 0; |
| 509 | int ip6_rtadv_maxroutes = 100; /* (arbitrary) initial maximum number of |
| 510 | * routes via rtadv expected to be |
| 511 | * significantly larger than common use. |
| 512 | * if you need to count: 3 extra initial |
| 513 | * routes, plus 1 per interface after the |
| 514 | * first one, then one per non-linklocal |
| 515 | * prefix */ |
| 516 | |
| 517 | /* icmp6 */ |
| 518 | /* |
| 519 | * BSDI4 defines these variables in in_proto.c... |
| 520 | * XXX: what if we don't define INET? Should we define pmtu6_expire |
| 521 | * or so? (jinmei@kame.net 19990310) |
| 522 | */ |
| 523 | int pmtu_expire = 60*10; |
| 524 | |
| 525 | /* raw IP6 parameters */ |
| 526 | /* |
| 527 | * Nominal space allocated to a raw ip socket. |
| 528 | */ |
| 529 | #define RIPV6SNDQ 8192 |
| 530 | #define RIPV6RCVQ 8192 |
| 531 | |
| 532 | u_long rip6_sendspace = RIPV6SNDQ; |
| 533 | u_long rip6_recvspace = RIPV6RCVQ; |
| 534 | |
| 535 | /* ICMPV6 parameters */ |
| 536 | int icmp6_rediraccept = 1; /* accept and process redirects */ |
| 537 | int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ |
| 538 | int icmp6errppslim = 100; /* 100pps */ |
| 539 | int icmp6_nodeinfo = 1; /* enable/disable NI response */ |
| 540 | |