in6_proto.c revision 1.103.4.6
1 /* $NetBSD: in6_proto.c,v 1.103.4.6 2016/04/22 15:44:18 skrll 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 1.103.4.6 2016/04/22 15:44:18 skrll 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 #include <net/route.h> 84 85 #include <netinet/in.h> 86 #include <netinet/in_systm.h> 87 #include <netinet/in_var.h> 88 #include <netinet/ip_encap.h> 89 #include <netinet/ip.h> 90 #include <netinet/ip_var.h> 91 #include <netinet/in_pcb.h> 92 #include <netinet/ip6.h> 93 #include <netinet6/ip6_var.h> 94 #include <netinet/icmp6.h> 95 #include <netinet6/in6_pcb.h> 96 97 #include <netinet/tcp.h> 98 #include <netinet/tcp_fsm.h> 99 #include <netinet/tcp_seq.h> 100 #include <netinet/tcp_timer.h> 101 #include <netinet/tcp_var.h> 102 #include <netinet/tcpip.h> 103 #include <netinet/tcp_debug.h> 104 105 #include <netinet6/udp6.h> 106 #include <netinet6/udp6_var.h> 107 108 #ifdef DCCP 109 #include <netinet/dccp.h> 110 #include <netinet/dccp_var.h> 111 #include <netinet6/dccp6_var.h> 112 #endif 113 114 #ifdef SCTP 115 #include <netinet/sctp_pcb.h> 116 #include <netinet/sctp.h> 117 #include <netinet/sctp_var.h> 118 #include <netinet6/sctp6_var.h> 119 #endif 120 121 #include <netinet6/pim6_var.h> 122 123 #include <netinet6/nd6.h> 124 125 #ifdef IPSEC 126 #include <netipsec/ipsec.h> 127 #include <netipsec/ipsec6.h> 128 #include <netipsec/key.h> 129 #endif /* IPSEC */ 130 131 132 #include "carp.h" 133 #if NCARP > 0 134 #include <netinet/ip_carp.h> 135 #endif 136 137 #include "etherip.h" 138 #if NETHERIP > 0 139 #include <netinet6/ip6_etherip.h> 140 #endif 141 142 #include <netinet6/ip6protosw.h> 143 144 #include <net/net_osdep.h> 145 146 /* 147 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 148 */ 149 150 DOMAIN_DEFINE(inet6domain); /* forward declare and add to link set */ 151 152 /* Wrappers to acquire kernel_lock. */ 153 154 PR_WRAP_CTLINPUT(rip6_ctlinput) 155 PR_WRAP_CTLINPUT(encap6_ctlinput) 156 PR_WRAP_CTLINPUT(udp6_ctlinput) 157 PR_WRAP_CTLINPUT(tcp6_ctlinput) 158 159 #define rip6_ctlinput rip6_ctlinput_wrapper 160 #define encap6_ctlinput encap6_ctlinput_wrapper 161 #define udp6_ctlinput udp6_ctlinput_wrapper 162 #define tcp6_ctlinput tcp6_ctlinput_wrapper 163 164 PR_WRAP_CTLOUTPUT(rip6_ctloutput) 165 PR_WRAP_CTLOUTPUT(tcp_ctloutput) 166 PR_WRAP_CTLOUTPUT(udp6_ctloutput) 167 PR_WRAP_CTLOUTPUT(icmp6_ctloutput) 168 169 #define rip6_ctloutput rip6_ctloutput_wrapper 170 #define tcp_ctloutput tcp_ctloutput_wrapper 171 #define udp6_ctloutput udp6_ctloutput_wrapper 172 #define icmp6_ctloutput icmp6_ctloutput_wrapper 173 174 #if defined(DCCP) 175 PR_WRAP_CTLINPUT(dccp6_ctlinput) 176 PR_WRAP_CTLOUTPUT(dccp_ctloutput) 177 178 #define dccp6_ctlinput dccp6_ctlinput_wrapper 179 #define dccp_ctloutput dccp_ctloutput_wrapper 180 #endif 181 182 #if defined(SCTP) 183 PR_WRAP_CTLINPUT(sctp6_ctlinput) 184 PR_WRAP_CTLOUTPUT(sctp_ctloutput) 185 186 #define sctp6_ctlinput sctp6_ctlinput_wrapper 187 #define sctp_ctloutput sctp_ctloutput_wrapper 188 #endif 189 190 #if defined(IPSEC) 191 PR_WRAP_CTLINPUT(ah6_ctlinput) 192 193 #define ah6_ctlinput ah6_ctlinput_wrapper 194 #endif 195 196 #if defined(IPSEC) 197 PR_WRAP_CTLINPUT(esp6_ctlinput) 198 199 #define esp6_ctlinput esp6_ctlinput_wrapper 200 #endif 201 202 static void 203 tcp6_init(void) 204 { 205 206 icmp6_mtudisc_callback_register(tcp6_mtudisc_callback); 207 208 tcp_init_common(sizeof(struct ip6_hdr)); 209 } 210 211 const struct ip6protosw inet6sw[] = { 212 { .pr_domain = &inet6domain, 213 .pr_protocol = IPPROTO_IPV6, 214 .pr_init = ip6_init, 215 .pr_fasttimo = frag6_fasttimo, 216 .pr_slowtimo = frag6_slowtimo, 217 .pr_drain = frag6_drainstub, 218 }, 219 { .pr_type = SOCK_DGRAM, 220 .pr_domain = &inet6domain, 221 .pr_protocol = IPPROTO_UDP, 222 .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, 223 .pr_input = udp6_input, 224 .pr_ctlinput = udp6_ctlinput, 225 .pr_ctloutput = udp6_ctloutput, 226 .pr_usrreqs = &udp6_usrreqs, 227 .pr_init = udp6_init, 228 }, 229 { .pr_type = SOCK_STREAM, 230 .pr_domain = &inet6domain, 231 .pr_protocol = IPPROTO_TCP, 232 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, 233 .pr_input = tcp6_input, 234 .pr_ctlinput = tcp6_ctlinput, 235 .pr_ctloutput = tcp_ctloutput, 236 .pr_usrreqs = &tcp_usrreqs, 237 .pr_init = tcp6_init, 238 .pr_fasttimo = tcp_fasttimo, 239 .pr_drain = tcp_drainstub, 240 }, 241 #ifdef DCCP 242 { .pr_type = SOCK_CONN_DGRAM, 243 .pr_domain = &inet6domain, 244 .pr_protocol = IPPROTO_DCCP, 245 .pr_flags = PR_CONNREQUIRED|PR_ATOMIC|PR_LISTEN, 246 .pr_input = dccp6_input, 247 .pr_ctlinput = dccp6_ctlinput, 248 .pr_ctloutput = dccp_ctloutput, 249 .pr_usrreqs = &dccp6_usrreqs, 250 #ifndef INET 251 .pr_init = dccp_init, 252 #endif 253 }, 254 #endif /* DCCP */ 255 #ifdef SCTP 256 { .pr_type = SOCK_DGRAM, 257 .pr_domain = &inet6domain, 258 .pr_protocol = IPPROTO_SCTP, 259 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD, 260 .pr_input = sctp6_input, 261 .pr_ctlinput = sctp6_ctlinput, 262 .pr_ctloutput = sctp_ctloutput, 263 .pr_usrreqs = &sctp6_usrreqs, 264 .pr_drain = sctp_drain, 265 }, 266 { .pr_type = SOCK_SEQPACKET, 267 .pr_domain = &inet6domain, 268 .pr_protocol = IPPROTO_SCTP, 269 .pr_flags = PR_ADDR_OPT|PR_WANTRCVD, 270 .pr_input = sctp6_input, 271 .pr_ctlinput = sctp6_ctlinput, 272 .pr_ctloutput = sctp_ctloutput, 273 .pr_drain = sctp_drain, 274 }, 275 { .pr_type = SOCK_STREAM, 276 .pr_domain = &inet6domain, 277 .pr_protocol = IPPROTO_SCTP, 278 .pr_flags = PR_CONNREQUIRED|PR_ADDR_OPT|PR_WANTRCVD|PR_LISTEN, 279 .pr_input = sctp6_input, 280 .pr_ctlinput = sctp6_ctlinput, 281 .pr_ctloutput = sctp_ctloutput, 282 .pr_drain = sctp_drain, 283 }, 284 #endif /* SCTP */ 285 { .pr_type = SOCK_RAW, 286 .pr_domain = &inet6domain, 287 .pr_protocol = IPPROTO_RAW, 288 .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF, 289 .pr_input = rip6_input, 290 .pr_ctlinput = rip6_ctlinput, 291 .pr_ctloutput = rip6_ctloutput, 292 .pr_usrreqs = &rip6_usrreqs, 293 }, 294 #ifdef GATEWAY 295 { .pr_domain = &inet6domain, 296 .pr_protocol = IPPROTO_IPV6, 297 .pr_slowtimo = ip6flow_slowtimo, 298 .pr_init = ip6flow_poolinit, 299 }, 300 #endif /* GATEWAY */ 301 { .pr_type = SOCK_RAW, 302 .pr_domain = &inet6domain, 303 .pr_protocol = IPPROTO_ICMPV6, 304 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 305 .pr_input = icmp6_input, 306 .pr_ctlinput = rip6_ctlinput, 307 .pr_ctloutput = icmp6_ctloutput, 308 .pr_usrreqs = &rip6_usrreqs, 309 .pr_init = icmp6_init, 310 }, 311 { .pr_type = SOCK_RAW, 312 .pr_domain = &inet6domain, 313 .pr_protocol = IPPROTO_DSTOPTS, 314 .pr_flags = PR_ATOMIC|PR_ADDR, 315 .pr_input = dest6_input, 316 }, 317 { .pr_type = SOCK_RAW, 318 .pr_domain = &inet6domain, 319 .pr_protocol = IPPROTO_ROUTING, 320 .pr_flags = PR_ATOMIC|PR_ADDR, 321 .pr_input = route6_input, 322 }, 323 { .pr_type = SOCK_RAW, 324 .pr_domain = &inet6domain, 325 .pr_protocol = IPPROTO_FRAGMENT, 326 .pr_flags = PR_ATOMIC|PR_ADDR, 327 .pr_input = frag6_input, 328 }, 329 #ifdef IPSEC 330 { .pr_type = SOCK_RAW, 331 .pr_domain = &inet6domain, 332 .pr_protocol = IPPROTO_AH, 333 .pr_flags = PR_ATOMIC|PR_ADDR, 334 .pr_input = ipsec6_common_input, 335 .pr_ctlinput = ah6_ctlinput, 336 }, 337 { .pr_type = SOCK_RAW, 338 .pr_domain = &inet6domain, 339 .pr_protocol = IPPROTO_ESP, 340 .pr_flags = PR_ATOMIC|PR_ADDR, 341 .pr_input = ipsec6_common_input, 342 .pr_ctlinput = esp6_ctlinput, 343 }, 344 { .pr_type = SOCK_RAW, 345 .pr_domain = &inet6domain, 346 .pr_protocol = IPPROTO_IPCOMP, 347 .pr_flags = PR_ATOMIC|PR_ADDR, 348 .pr_input = ipsec6_common_input, 349 }, 350 #endif /* IPSEC */ 351 #ifdef INET 352 { .pr_type = SOCK_RAW, 353 .pr_domain = &inet6domain, 354 .pr_protocol = IPPROTO_IPV4, 355 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 356 .pr_input = encap6_input, 357 .pr_ctlinput = encap6_ctlinput, 358 .pr_ctloutput = rip6_ctloutput, 359 .pr_usrreqs = &rip6_usrreqs, 360 .pr_init = encap_init, 361 }, 362 #endif 363 { .pr_type = SOCK_RAW, 364 .pr_domain = &inet6domain, 365 .pr_protocol = IPPROTO_IPV6, 366 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 367 .pr_input = encap6_input, 368 .pr_ctlinput = encap6_ctlinput, 369 .pr_ctloutput = rip6_ctloutput, 370 .pr_usrreqs = &rip6_usrreqs, 371 .pr_init = encap_init, 372 }, 373 #if NETHERIP > 0 374 { .pr_type = SOCK_RAW, 375 .pr_domain = &inet6domain, 376 .pr_protocol = IPPROTO_ETHERIP, 377 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 378 .pr_input = ip6_etherip_input, 379 .pr_ctlinput = rip6_ctlinput, 380 .pr_ctloutput = rip6_ctloutput, 381 .pr_usrreqs = &rip6_usrreqs, 382 }, 383 #endif 384 #if NCARP > 0 385 { .pr_type = SOCK_RAW, 386 .pr_domain = &inet6domain, 387 .pr_protocol = IPPROTO_CARP, 388 .pr_flags = PR_ATOMIC|PR_ADDR, 389 .pr_input = carp6_proto_input, 390 .pr_ctloutput = rip6_ctloutput, 391 .pr_usrreqs = &rip6_usrreqs, 392 }, 393 #endif /* NCARP */ 394 { .pr_type = SOCK_RAW, 395 .pr_domain = &inet6domain, 396 .pr_protocol = IPPROTO_PIM, 397 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 398 .pr_input = pim6_input, 399 .pr_ctloutput = rip6_ctloutput, 400 .pr_usrreqs = &rip6_usrreqs, 401 .pr_init = pim6_init, 402 }, 403 /* raw wildcard */ 404 { .pr_type = SOCK_RAW, 405 .pr_domain = &inet6domain, 406 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 407 .pr_input = rip6_input, 408 .pr_ctloutput = rip6_ctloutput, 409 .pr_usrreqs = &rip6_usrreqs, 410 .pr_init = rip6_init, 411 }, 412 }; 413 414 static const struct sockaddr_in6 in6_any = { 415 .sin6_len = sizeof(in6_any) 416 , .sin6_family = AF_INET6 417 , .sin6_port = 0 418 , .sin6_flowinfo = 0 419 , .sin6_addr = IN6ADDR_ANY_INIT 420 , .sin6_scope_id = 0 421 }; 422 423 bool in6_present = false; 424 static void 425 in6_init(void) 426 { 427 428 in6_present = true; 429 } 430 431 struct domain inet6domain = { 432 .dom_family = AF_INET6, .dom_name = "internet6", 433 .dom_init = in6_init, .dom_externalize = NULL, .dom_dispose = NULL, 434 .dom_protosw = (const struct protosw *)inet6sw, 435 .dom_protoswNPROTOSW = (const struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 436 .dom_rtattach = rt_inithead, 437 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 438 .dom_maxrtkey = sizeof(struct ip_pack6), 439 .dom_if_up = in6_if_up, .dom_if_down = in6_if_down, 440 .dom_ifattach = in6_domifattach, .dom_ifdetach = in6_domifdetach, 441 .dom_if_link_state_change = in6_if_link_state_change, 442 .dom_ifqueues = { NULL, NULL }, 443 .dom_link = { NULL }, 444 .dom_mowner = MOWNER_INIT("",""), 445 .dom_sa_cmpofs = offsetof(struct sockaddr_in6, sin6_addr), 446 .dom_sa_cmplen = sizeof(struct in6_addr), 447 .dom_sa_any = (const struct sockaddr *)&in6_any, 448 .dom_sockaddr_externalize = sockaddr_in6_externalize, 449 .dom_rtcache = LIST_HEAD_INITIALIZER(inet6domain.dom_rtcache) 450 }; 451 452 #if 0 453 int 454 sockaddr_in6_cmp(const struct sockaddr *lsa, const struct sockaddr *rsa) 455 { 456 uint_fast8_t len; 457 const uint_fast8_t addrofs = offsetof(struct sockaddr_in6, sin6_addr), 458 addrend = addrofs + sizeof(struct in6_addr); 459 int rc; 460 const struct sockaddr_in6 *lsin6, *rsin6; 461 462 lsin6 = satocsin6(lsa); 463 rsin6 = satocsin6(rsa); 464 465 len = MIN(addrend, MIN(lsin6->sin6_len, rsin6->sin6_len)); 466 467 if (len > addrofs && 468 (rc = memcmp(&lsin6->sin6_addr, &rsin6->sin6_addr, 469 len - addrofs)) != 0) 470 return rc; 471 472 return lsin6->sin6_len - rsin6->sin6_len; 473 } 474 #endif 475 476 /* 477 * Internet configuration info 478 */ 479 #ifndef IPV6FORWARDING 480 #ifdef GATEWAY6 481 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 482 #else 483 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 484 #endif /* GATEWAY6 */ 485 #endif /* !IPV6FORWARDING */ 486 487 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 488 int ip6_sendredirects = 1; 489 int ip6_defhlim = IPV6_DEFHLIM; 490 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 491 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 492 int ip6_maxfragpackets = 200; 493 int ip6_maxfrags = 200; 494 int ip6_log_interval = 5; 495 int ip6_hdrnestlimit = 50; /* appropriate? */ 496 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 497 int ip6_auto_flowlabel = 1; 498 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 499 int ip6_rr_prune = 5; /* router renumbering prefix 500 * walk list every 5 sec. */ 501 int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ 502 int ip6_v6only = 1; 503 int ip6_neighborgcthresh = 2048; /* Threshold # of NDP entries for GC */ 504 int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */ 505 int ip6_maxifdefrouters = 16; /* Max acceptable def routers via RA */ 506 int ip6_maxdynroutes = 4096; /* Max # of routes created via redirect */ 507 508 int ip6_keepfaith = 0; 509 time_t ip6_log_time = 0; 510 int ip6_rtadv_maxroutes = 100; /* (arbitrary) initial maximum number of 511 * routes via rtadv expected to be 512 * significantly larger than common use. 513 * if you need to count: 3 extra initial 514 * routes, plus 1 per interface after the 515 * first one, then one per non-linklocal 516 * prefix */ 517 518 /* icmp6 */ 519 /* 520 * BSDI4 defines these variables in in_proto.c... 521 * XXX: what if we don't define INET? Should we define pmtu6_expire 522 * or so? (jinmei (at) kame.net 19990310) 523 */ 524 int pmtu_expire = 60*10; 525 526 /* raw IP6 parameters */ 527 /* 528 * Nominal space allocated to a raw ip socket. 529 */ 530 #define RIPV6SNDQ 8192 531 #define RIPV6RCVQ 8192 532 533 u_long rip6_sendspace = RIPV6SNDQ; 534 u_long rip6_recvspace = RIPV6RCVQ; 535 536 /* ICMPV6 parameters */ 537 int icmp6_rediraccept = 1; /* accept and process redirects */ 538 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 539 int icmp6errppslim = 100; /* 100pps */ 540 int icmp6_nodeinfo = 1; /* enable/disable NI response */ 541
Indexes created Mon Oct 20 20:10:13 GMT 2025