in6_pcb.c revision 1.97.2.4
1 /* $NetBSD: in6_pcb.c,v 1.97.2.4 2010/10/09 03:32:38 yamt Exp $ */ 2 /* $KAME: in6_pcb.c,v 1.84 2001/02/08 18:02:08 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, 1991, 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_pcb.c 8.2 (Berkeley) 1/4/94 62 */ 63 64 #include <sys/cdefs.h> 65 __KERNEL_RCSID(0, "$NetBSD: in6_pcb.c,v 1.97.2.4 2010/10/09 03:32:38 yamt Exp $"); 66 67 #include "opt_inet.h" 68 #include "opt_ipsec.h" 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/malloc.h> 73 #include <sys/mbuf.h> 74 #include <sys/protosw.h> 75 #include <sys/socket.h> 76 #include <sys/socketvar.h> 77 #include <sys/ioctl.h> 78 #include <sys/errno.h> 79 #include <sys/time.h> 80 #include <sys/proc.h> 81 #include <sys/kauth.h> 82 #include <sys/domain.h> 83 #include <sys/once.h> 84 85 #include <net/if.h> 86 #include <net/route.h> 87 88 #include <netinet/in.h> 89 #include <netinet/in_var.h> 90 #include <netinet/in_systm.h> 91 #include <netinet/ip.h> 92 #include <netinet/in_pcb.h> 93 #include <netinet/ip6.h> 94 #include <netinet6/ip6_var.h> 95 #include <netinet6/in6_pcb.h> 96 #include <netinet6/scope6_var.h> 97 #include <netinet6/nd6.h> 98 99 #include "faith.h" 100 101 #ifdef IPSEC 102 #include <netinet6/ipsec.h> 103 #include <netkey/key.h> 104 #endif /* IPSEC */ 105 106 #ifdef FAST_IPSEC 107 #include <netipsec/ipsec.h> 108 #include <netipsec/ipsec6.h> 109 #include <netipsec/key.h> 110 #endif /* FAST_IPSEC */ 111 112 const struct in6_addr zeroin6_addr; 113 114 #define IN6PCBHASH_PORT(table, lport) \ 115 &(table)->inpt_porthashtbl[ntohs(lport) & (table)->inpt_porthash] 116 #define IN6PCBHASH_BIND(table, laddr, lport) \ 117 &(table)->inpt_bindhashtbl[ \ 118 (((laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \ 119 (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) + ntohs(lport)) & \ 120 (table)->inpt_bindhash] 121 #define IN6PCBHASH_CONNECT(table, faddr, fport, laddr, lport) \ 122 &(table)->inpt_bindhashtbl[ \ 123 ((((faddr)->s6_addr32[0] ^ (faddr)->s6_addr32[1] ^ \ 124 (faddr)->s6_addr32[2] ^ (faddr)->s6_addr32[3]) + ntohs(fport)) + \ 125 (((laddr)->s6_addr32[0] ^ (laddr)->s6_addr32[1] ^ \ 126 (laddr)->s6_addr32[2] ^ (laddr)->s6_addr32[3]) + \ 127 ntohs(lport))) & (table)->inpt_bindhash] 128 129 int ip6_anonportmin = IPV6PORT_ANONMIN; 130 int ip6_anonportmax = IPV6PORT_ANONMAX; 131 int ip6_lowportmin = IPV6PORT_RESERVEDMIN; 132 int ip6_lowportmax = IPV6PORT_RESERVEDMAX; 133 134 static struct pool in6pcb_pool; 135 136 static int 137 in6pcb_poolinit(void) 138 { 139 140 pool_init(&in6pcb_pool, sizeof(struct in6pcb), 0, 0, 0, "in6pcbpl", 141 NULL, IPL_SOFTNET); 142 return 0; 143 } 144 145 void 146 in6_pcbinit(struct inpcbtable *table, int bindhashsize, int connecthashsize) 147 { 148 static ONCE_DECL(control); 149 150 in_pcbinit(table, bindhashsize, connecthashsize); 151 table->inpt_lastport = (u_int16_t)ip6_anonportmax; 152 153 RUN_ONCE(&control, in6pcb_poolinit); 154 } 155 156 int 157 in6_pcballoc(struct socket *so, void *v) 158 { 159 struct inpcbtable *table = v; 160 struct in6pcb *in6p; 161 int s; 162 #if defined(IPSEC) || defined(FAST_IPSEC) 163 int error; 164 #endif 165 166 s = splnet(); 167 in6p = pool_get(&in6pcb_pool, PR_NOWAIT); 168 splx(s); 169 if (in6p == NULL) 170 return (ENOBUFS); 171 memset((void *)in6p, 0, sizeof(*in6p)); 172 in6p->in6p_af = AF_INET6; 173 in6p->in6p_table = table; 174 in6p->in6p_socket = so; 175 in6p->in6p_hops = -1; /* use kernel default */ 176 in6p->in6p_icmp6filt = NULL; 177 #if defined(IPSEC) || defined(FAST_IPSEC) 178 error = ipsec_init_pcbpolicy(so, &in6p->in6p_sp); 179 if (error != 0) { 180 s = splnet(); 181 pool_put(&in6pcb_pool, in6p); 182 splx(s); 183 return error; 184 } 185 #endif /* IPSEC */ 186 s = splnet(); 187 CIRCLEQ_INSERT_HEAD(&table->inpt_queue, (struct inpcb_hdr*)in6p, 188 inph_queue); 189 LIST_INSERT_HEAD(IN6PCBHASH_PORT(table, in6p->in6p_lport), 190 &in6p->in6p_head, inph_lhash); 191 in6_pcbstate(in6p, IN6P_ATTACHED); 192 splx(s); 193 if (ip6_v6only) 194 in6p->in6p_flags |= IN6P_IPV6_V6ONLY; 195 so->so_pcb = (void *)in6p; 196 return (0); 197 } 198 199 /* 200 * Bind address from sin6 to in6p. 201 */ 202 static int 203 in6_pcbbind_addr(struct in6pcb *in6p, struct sockaddr_in6 *sin6, struct lwp *l) 204 { 205 int error; 206 207 /* 208 * We should check the family, but old programs 209 * incorrectly fail to intialize it. 210 */ 211 if (sin6->sin6_family != AF_INET6) 212 return (EAFNOSUPPORT); 213 214 #ifndef INET 215 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) 216 return (EADDRNOTAVAIL); 217 #endif 218 219 if ((error = sa6_embedscope(sin6, ip6_use_defzone)) != 0) 220 return (error); 221 222 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 223 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 224 return (EINVAL); 225 if (sin6->sin6_addr.s6_addr32[3]) { 226 struct sockaddr_in sin; 227 228 memset(&sin, 0, sizeof(sin)); 229 sin.sin_len = sizeof(sin); 230 sin.sin_family = AF_INET; 231 bcopy(&sin6->sin6_addr.s6_addr32[3], 232 &sin.sin_addr, sizeof(sin.sin_addr)); 233 if (ifa_ifwithaddr((struct sockaddr *)&sin) == 0) 234 return EADDRNOTAVAIL; 235 } 236 } else if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 237 struct ifaddr *ia = NULL; 238 239 if ((in6p->in6p_flags & IN6P_FAITH) == 0 && 240 (ia = ifa_ifwithaddr((struct sockaddr *)sin6)) == 0) 241 return (EADDRNOTAVAIL); 242 243 /* 244 * bind to an anycast address might accidentally 245 * cause sending a packet with an anycast source 246 * address, so we forbid it. 247 * 248 * We should allow to bind to a deprecated address, 249 * since the application dare to use it. 250 * But, can we assume that they are careful enough 251 * to check if the address is deprecated or not? 252 * Maybe, as a safeguard, we should have a setsockopt 253 * flag to control the bind(2) behavior against 254 * deprecated addresses (default: forbid bind(2)). 255 */ 256 if (ia && 257 ((struct in6_ifaddr *)ia)->ia6_flags & 258 (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|IN6_IFF_DETACHED)) 259 return (EADDRNOTAVAIL); 260 } 261 262 263 in6p->in6p_laddr = sin6->sin6_addr; 264 265 266 return (0); 267 } 268 269 /* 270 * Bind port from sin6 to in6p. 271 */ 272 static int 273 in6_pcbbind_port(struct in6pcb *in6p, struct sockaddr_in6 *sin6, struct lwp *l) 274 { 275 struct inpcbtable *table = in6p->in6p_table; 276 struct socket *so = in6p->in6p_socket; 277 int wild = 0, reuseport = (so->so_options & SO_REUSEPORT); 278 int error; 279 280 if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT)) == 0 && 281 ((so->so_proto->pr_flags & PR_CONNREQUIRED) == 0 || 282 (so->so_options & SO_ACCEPTCONN) == 0)) 283 wild = 1; 284 285 if (sin6->sin6_port != 0) { 286 enum kauth_network_req req; 287 288 #ifndef IPNOPRIVPORTS 289 if (ntohs(sin6->sin6_port) < IPV6PORT_RESERVED) 290 req = KAUTH_REQ_NETWORK_BIND_PRIVPORT; 291 else 292 #endif /* IPNOPRIVPORTS */ 293 req = KAUTH_REQ_NETWORK_BIND_PORT; 294 295 error = kauth_authorize_network(l->l_cred, KAUTH_NETWORK_BIND, 296 req, so, sin6, NULL); 297 if (error) 298 return (EACCES); 299 } 300 301 if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) { 302 /* 303 * Treat SO_REUSEADDR as SO_REUSEPORT for multicast; 304 * allow compepte duplication of binding if 305 * SO_REUSEPORT is set, or if SO_REUSEADDR is set 306 * and a multicast address is bound on both 307 * new and duplicated sockets. 308 */ 309 if (so->so_options & SO_REUSEADDR) 310 reuseport = SO_REUSEADDR|SO_REUSEPORT; 311 } 312 313 if (sin6->sin6_port != 0) { 314 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 315 #ifdef INET 316 struct inpcb *t; 317 318 t = in_pcblookup_port(table, 319 *(struct in_addr *)&sin6->sin6_addr.s6_addr32[3], 320 sin6->sin6_port, wild); 321 if (t && (reuseport & t->inp_socket->so_options) == 0) 322 return (EADDRINUSE); 323 #else 324 return (EADDRNOTAVAIL); 325 #endif 326 } 327 328 { 329 struct in6pcb *t; 330 331 t = in6_pcblookup_port(table, &sin6->sin6_addr, 332 sin6->sin6_port, wild); 333 if (t && (reuseport & t->in6p_socket->so_options) == 0) 334 return (EADDRINUSE); 335 } 336 } 337 338 if (sin6->sin6_port == 0) { 339 int e; 340 e = in6_pcbsetport(sin6, in6p, l); 341 if (e != 0) 342 return (e); 343 } else { 344 in6p->in6p_lport = sin6->sin6_port; 345 in6_pcbstate(in6p, IN6P_BOUND); 346 } 347 348 LIST_REMOVE(&in6p->in6p_head, inph_lhash); 349 LIST_INSERT_HEAD(IN6PCBHASH_PORT(table, in6p->in6p_lport), 350 &in6p->in6p_head, inph_lhash); 351 352 return (0); 353 } 354 355 int 356 in6_pcbbind(void *v, struct mbuf *nam, struct lwp *l) 357 { 358 struct in6pcb *in6p = v; 359 struct sockaddr_in6 lsin6; 360 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)NULL; 361 int error; 362 363 if (in6p->in6p_af != AF_INET6) 364 return (EINVAL); 365 366 /* 367 * If we already have a local port or a local address it means we're 368 * bounded. 369 */ 370 if (in6p->in6p_lport || !(IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) || 371 (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr) && 372 in6p->in6p_laddr.s6_addr32[3] == 0))) 373 return (EINVAL); 374 375 if (nam != NULL) { 376 /* We were provided a sockaddr_in6 to use. */ 377 sin6 = mtod(nam, struct sockaddr_in6 *); 378 if (nam->m_len != sizeof(*sin6)) 379 return (EINVAL); 380 } else { 381 /* We always bind to *something*, even if it's "anything". */ 382 lsin6 = *((const struct sockaddr_in6 *) 383 in6p->in6p_socket->so_proto->pr_domain->dom_sa_any); 384 sin6 = &lsin6; 385 } 386 387 /* Bind address. */ 388 error = in6_pcbbind_addr(in6p, sin6, l); 389 if (error) 390 return (error); 391 392 /* Bind port. */ 393 error = in6_pcbbind_port(in6p, sin6, l); 394 if (error) { 395 /* 396 * Reset the address here to "any" so we don't "leak" the 397 * in6pcb. 398 */ 399 in6p->in6p_laddr = in6addr_any; 400 401 return (error); 402 } 403 404 405 #if 0 406 in6p->in6p_flowinfo = 0; /* XXX */ 407 #endif 408 return (0); 409 } 410 411 /* 412 * Connect from a socket to a specified address. 413 * Both address and port must be specified in argument sin6. 414 * If don't have a local address for this socket yet, 415 * then pick one. 416 */ 417 int 418 in6_pcbconnect(void *v, struct mbuf *nam, struct lwp *l) 419 { 420 struct rtentry *rt; 421 struct in6pcb *in6p = v; 422 struct in6_addr *in6a = NULL; 423 struct sockaddr_in6 *sin6 = mtod(nam, struct sockaddr_in6 *); 424 struct ifnet *ifp = NULL; /* outgoing interface */ 425 int error = 0; 426 int scope_ambiguous = 0; 427 #ifdef INET 428 struct in6_addr mapped; 429 #endif 430 struct sockaddr_in6 tmp; 431 432 (void)&in6a; /* XXX fool gcc */ 433 434 if (in6p->in6p_af != AF_INET6) 435 return (EINVAL); 436 437 if (nam->m_len != sizeof(*sin6)) 438 return (EINVAL); 439 if (sin6->sin6_family != AF_INET6) 440 return (EAFNOSUPPORT); 441 if (sin6->sin6_port == 0) 442 return (EADDRNOTAVAIL); 443 444 if (sin6->sin6_scope_id == 0 && !ip6_use_defzone) 445 scope_ambiguous = 1; 446 if ((error = sa6_embedscope(sin6, ip6_use_defzone)) != 0) 447 return(error); 448 449 /* sanity check for mapped address case */ 450 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 451 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 452 return EINVAL; 453 if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) 454 in6p->in6p_laddr.s6_addr16[5] = htons(0xffff); 455 if (!IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr)) 456 return EINVAL; 457 } else 458 { 459 if (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr)) 460 return EINVAL; 461 } 462 463 /* protect *sin6 from overwrites */ 464 tmp = *sin6; 465 sin6 = &tmp; 466 467 /* Source address selection. */ 468 if (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr) && 469 in6p->in6p_laddr.s6_addr32[3] == 0) { 470 #ifdef INET 471 struct sockaddr_in sin, *sinp; 472 473 memset(&sin, 0, sizeof(sin)); 474 sin.sin_len = sizeof(sin); 475 sin.sin_family = AF_INET; 476 memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr32[3], 477 sizeof(sin.sin_addr)); 478 sinp = in_selectsrc(&sin, &in6p->in6p_route, 479 in6p->in6p_socket->so_options, NULL, &error); 480 if (sinp == 0) { 481 if (error == 0) 482 error = EADDRNOTAVAIL; 483 return (error); 484 } 485 memset(&mapped, 0, sizeof(mapped)); 486 mapped.s6_addr16[5] = htons(0xffff); 487 memcpy(&mapped.s6_addr32[3], &sinp->sin_addr, sizeof(sinp->sin_addr)); 488 in6a = &mapped; 489 #else 490 return EADDRNOTAVAIL; 491 #endif 492 } else { 493 /* 494 * XXX: in6_selectsrc might replace the bound local address 495 * with the address specified by setsockopt(IPV6_PKTINFO). 496 * Is it the intended behavior? 497 */ 498 in6a = in6_selectsrc(sin6, in6p->in6p_outputopts, 499 in6p->in6p_moptions, 500 &in6p->in6p_route, 501 &in6p->in6p_laddr, &ifp, &error); 502 if (ifp && scope_ambiguous && 503 (error = in6_setscope(&sin6->sin6_addr, ifp, NULL)) != 0) { 504 return(error); 505 } 506 507 if (in6a == 0) { 508 if (error == 0) 509 error = EADDRNOTAVAIL; 510 return (error); 511 } 512 } 513 if (ifp == NULL && (rt = rtcache_validate(&in6p->in6p_route)) != NULL) 514 ifp = rt->rt_ifp; 515 516 in6p->in6p_ip6.ip6_hlim = (u_int8_t)in6_selecthlim(in6p, ifp); 517 518 if (in6_pcblookup_connect(in6p->in6p_table, &sin6->sin6_addr, 519 sin6->sin6_port, 520 IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) ? in6a : &in6p->in6p_laddr, 521 in6p->in6p_lport, 0)) 522 return (EADDRINUSE); 523 if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) || 524 (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr) && 525 in6p->in6p_laddr.s6_addr32[3] == 0)) 526 { 527 if (in6p->in6p_lport == 0) { 528 error = in6_pcbbind(in6p, (struct mbuf *)0, l); 529 if (error != 0) 530 return error; 531 } 532 in6p->in6p_laddr = *in6a; 533 } 534 in6p->in6p_faddr = sin6->sin6_addr; 535 in6p->in6p_fport = sin6->sin6_port; 536 in6_pcbstate(in6p, IN6P_CONNECTED); 537 in6p->in6p_flowinfo &= ~IPV6_FLOWLABEL_MASK; 538 if (ip6_auto_flowlabel) 539 in6p->in6p_flowinfo |= 540 (htonl(ip6_randomflowlabel()) & IPV6_FLOWLABEL_MASK); 541 #if defined(IPSEC) || defined(FAST_IPSEC) 542 if (in6p->in6p_socket->so_type == SOCK_STREAM) 543 ipsec_pcbconn(in6p->in6p_sp); 544 #endif 545 return (0); 546 } 547 548 void 549 in6_pcbdisconnect(struct in6pcb *in6p) 550 { 551 memset((void *)&in6p->in6p_faddr, 0, sizeof(in6p->in6p_faddr)); 552 in6p->in6p_fport = 0; 553 in6_pcbstate(in6p, IN6P_BOUND); 554 in6p->in6p_flowinfo &= ~IPV6_FLOWLABEL_MASK; 555 #if defined(IPSEC) || defined(FAST_IPSEC) 556 ipsec_pcbdisconn(in6p->in6p_sp); 557 #endif 558 if (in6p->in6p_socket->so_state & SS_NOFDREF) 559 in6_pcbdetach(in6p); 560 } 561 562 void 563 in6_pcbdetach(struct in6pcb *in6p) 564 { 565 struct socket *so = in6p->in6p_socket; 566 int s; 567 568 if (in6p->in6p_af != AF_INET6) 569 return; 570 571 #if defined(IPSEC) || defined(FAST_IPSEC) 572 ipsec6_delete_pcbpolicy(in6p); 573 #endif /* IPSEC */ 574 so->so_pcb = 0; 575 if (in6p->in6p_options) 576 m_freem(in6p->in6p_options); 577 if (in6p->in6p_outputopts != NULL) { 578 ip6_clearpktopts(in6p->in6p_outputopts, -1); 579 free(in6p->in6p_outputopts, M_IP6OPT); 580 } 581 rtcache_free(&in6p->in6p_route); 582 ip6_freemoptions(in6p->in6p_moptions); 583 s = splnet(); 584 in6_pcbstate(in6p, IN6P_ATTACHED); 585 LIST_REMOVE(&in6p->in6p_head, inph_lhash); 586 CIRCLEQ_REMOVE(&in6p->in6p_table->inpt_queue, &in6p->in6p_head, 587 inph_queue); 588 pool_put(&in6pcb_pool, in6p); 589 splx(s); 590 sofree(so); /* drops the socket's lock */ 591 mutex_enter(softnet_lock); /* reacquire it */ 592 } 593 594 void 595 in6_setsockaddr(struct in6pcb *in6p, struct mbuf *nam) 596 { 597 struct sockaddr_in6 *sin6; 598 599 if (in6p->in6p_af != AF_INET6) 600 return; 601 602 nam->m_len = sizeof(*sin6); 603 sin6 = mtod(nam, struct sockaddr_in6 *); 604 sockaddr_in6_init(sin6, &in6p->in6p_laddr, in6p->in6p_lport, 0, 0); 605 (void)sa6_recoverscope(sin6); /* XXX: should catch errors */ 606 } 607 608 void 609 in6_setpeeraddr(struct in6pcb *in6p, struct mbuf *nam) 610 { 611 struct sockaddr_in6 *sin6; 612 613 if (in6p->in6p_af != AF_INET6) 614 return; 615 616 nam->m_len = sizeof(*sin6); 617 sin6 = mtod(nam, struct sockaddr_in6 *); 618 sockaddr_in6_init(sin6, &in6p->in6p_faddr, in6p->in6p_fport, 0, 0); 619 (void)sa6_recoverscope(sin6); /* XXX: should catch errors */ 620 } 621 622 /* 623 * Pass some notification to all connections of a protocol 624 * associated with address dst. The local address and/or port numbers 625 * may be specified to limit the search. The "usual action" will be 626 * taken, depending on the ctlinput cmd. The caller must filter any 627 * cmds that are uninteresting (e.g., no error in the map). 628 * Call the protocol specific routine (if any) to report 629 * any errors for each matching socket. 630 * 631 * Must be called at splsoftnet. 632 * 633 * Note: src (4th arg) carries the flowlabel value on the original IPv6 634 * header, in sin6_flowinfo member. 635 */ 636 int 637 in6_pcbnotify(struct inpcbtable *table, const struct sockaddr *dst, 638 u_int fport_arg, const struct sockaddr *src, u_int lport_arg, int cmd, 639 void *cmdarg, void (*notify)(struct in6pcb *, int)) 640 { 641 struct rtentry *rt; 642 struct in6pcb *in6p, *nin6p; 643 struct sockaddr_in6 sa6_src; 644 const struct sockaddr_in6 *sa6_dst; 645 u_int16_t fport = fport_arg, lport = lport_arg; 646 int errno; 647 int nmatch = 0; 648 u_int32_t flowinfo; 649 650 if ((unsigned)cmd >= PRC_NCMDS || dst->sa_family != AF_INET6) 651 return 0; 652 653 sa6_dst = (const struct sockaddr_in6 *)dst; 654 if (IN6_IS_ADDR_UNSPECIFIED(&sa6_dst->sin6_addr)) 655 return 0; 656 657 /* 658 * note that src can be NULL when we get notify by local fragmentation. 659 */ 660 sa6_src = (src == NULL) ? sa6_any : *(const struct sockaddr_in6 *)src; 661 flowinfo = sa6_src.sin6_flowinfo; 662 663 /* 664 * Redirects go to all references to the destination, 665 * and use in6_rtchange to invalidate the route cache. 666 * Dead host indications: also use in6_rtchange to invalidate 667 * the cache, and deliver the error to all the sockets. 668 * Otherwise, if we have knowledge of the local port and address, 669 * deliver only to that socket. 670 */ 671 if (PRC_IS_REDIRECT(cmd) || cmd == PRC_HOSTDEAD) { 672 fport = 0; 673 lport = 0; 674 memset((void *)&sa6_src.sin6_addr, 0, sizeof(sa6_src.sin6_addr)); 675 676 if (cmd != PRC_HOSTDEAD) 677 notify = in6_rtchange; 678 } 679 680 errno = inet6ctlerrmap[cmd]; 681 for (in6p = (struct in6pcb *)CIRCLEQ_FIRST(&table->inpt_queue); 682 in6p != (void *)&table->inpt_queue; 683 in6p = nin6p) { 684 nin6p = (struct in6pcb *)CIRCLEQ_NEXT(in6p, in6p_queue); 685 686 if (in6p->in6p_af != AF_INET6) 687 continue; 688 689 /* 690 * Under the following condition, notify of redirects 691 * to the pcb, without making address matches against inpcb. 692 * - redirect notification is arrived. 693 * - the inpcb is unconnected. 694 * - the inpcb is caching !RTF_HOST routing entry. 695 * - the ICMPv6 notification is from the gateway cached in the 696 * inpcb. i.e. ICMPv6 notification is from nexthop gateway 697 * the inpcb used very recently. 698 * 699 * This is to improve interaction between netbsd/openbsd 700 * redirect handling code, and inpcb route cache code. 701 * without the clause, !RTF_HOST routing entry (which carries 702 * gateway used by inpcb right before the ICMPv6 redirect) 703 * will be cached forever in unconnected inpcb. 704 * 705 * There still is a question regarding to what is TRT: 706 * - On bsdi/freebsd, RTF_HOST (cloned) routing entry will be 707 * generated on packet output. inpcb will always cache 708 * RTF_HOST routing entry so there's no need for the clause 709 * (ICMPv6 redirect will update RTF_HOST routing entry, 710 * and inpcb is caching it already). 711 * However, bsdi/freebsd are vulnerable to local DoS attacks 712 * due to the cloned routing entries. 713 * - Specwise, "destination cache" is mentioned in RFC2461. 714 * Jinmei says that it implies bsdi/freebsd behavior, itojun 715 * is not really convinced. 716 * - Having hiwat/lowat on # of cloned host route (redirect/ 717 * pmtud) may be a good idea. netbsd/openbsd has it. see 718 * icmp6_mtudisc_update(). 719 */ 720 if ((PRC_IS_REDIRECT(cmd) || cmd == PRC_HOSTDEAD) && 721 IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) && 722 (rt = rtcache_validate(&in6p->in6p_route)) != NULL && 723 !(rt->rt_flags & RTF_HOST)) { 724 const struct sockaddr_in6 *dst6; 725 726 dst6 = (const struct sockaddr_in6 *) 727 rtcache_getdst(&in6p->in6p_route); 728 if (dst6 == NULL) 729 ; 730 else if (IN6_ARE_ADDR_EQUAL(&dst6->sin6_addr, 731 &sa6_dst->sin6_addr)) 732 goto do_notify; 733 } 734 735 /* 736 * If the error designates a new path MTU for a destination 737 * and the application (associated with this socket) wanted to 738 * know the value, notify. Note that we notify for all 739 * disconnected sockets if the corresponding application 740 * wanted. This is because some UDP applications keep sending 741 * sockets disconnected. 742 * XXX: should we avoid to notify the value to TCP sockets? 743 */ 744 if (cmd == PRC_MSGSIZE && (in6p->in6p_flags & IN6P_MTU) != 0 && 745 (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) || 746 IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &sa6_dst->sin6_addr))) { 747 ip6_notify_pmtu(in6p, (const struct sockaddr_in6 *)dst, 748 (u_int32_t *)cmdarg); 749 } 750 751 /* 752 * Detect if we should notify the error. If no source and 753 * destination ports are specified, but non-zero flowinfo and 754 * local address match, notify the error. This is the case 755 * when the error is delivered with an encrypted buffer 756 * by ESP. Otherwise, just compare addresses and ports 757 * as usual. 758 */ 759 if (lport == 0 && fport == 0 && flowinfo && 760 in6p->in6p_socket != NULL && 761 flowinfo == (in6p->in6p_flowinfo & IPV6_FLOWLABEL_MASK) && 762 IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &sa6_src.sin6_addr)) 763 goto do_notify; 764 else if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, 765 &sa6_dst->sin6_addr) || 766 in6p->in6p_socket == 0 || 767 (lport && in6p->in6p_lport != lport) || 768 (!IN6_IS_ADDR_UNSPECIFIED(&sa6_src.sin6_addr) && 769 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, 770 &sa6_src.sin6_addr)) || 771 (fport && in6p->in6p_fport != fport)) 772 continue; 773 774 do_notify: 775 if (notify) 776 (*notify)(in6p, errno); 777 nmatch++; 778 } 779 return nmatch; 780 } 781 782 void 783 in6_pcbpurgeif0(struct inpcbtable *table, struct ifnet *ifp) 784 { 785 struct in6pcb *in6p, *nin6p; 786 struct ip6_moptions *im6o; 787 struct in6_multi_mship *imm, *nimm; 788 789 for (in6p = (struct in6pcb *)CIRCLEQ_FIRST(&table->inpt_queue); 790 in6p != (void *)&table->inpt_queue; 791 in6p = nin6p) { 792 nin6p = (struct in6pcb *)CIRCLEQ_NEXT(in6p, in6p_queue); 793 if (in6p->in6p_af != AF_INET6) 794 continue; 795 796 im6o = in6p->in6p_moptions; 797 if (im6o) { 798 /* 799 * Unselect the outgoing interface if it is being 800 * detached. 801 */ 802 if (im6o->im6o_multicast_ifp == ifp) 803 im6o->im6o_multicast_ifp = NULL; 804 805 /* 806 * Drop multicast group membership if we joined 807 * through the interface being detached. 808 * XXX controversial - is it really legal for kernel 809 * to force this? 810 */ 811 for (imm = im6o->im6o_memberships.lh_first; 812 imm != NULL; imm = nimm) { 813 nimm = imm->i6mm_chain.le_next; 814 if (imm->i6mm_maddr->in6m_ifp == ifp) { 815 LIST_REMOVE(imm, i6mm_chain); 816 in6_leavegroup(imm); 817 } 818 } 819 } 820 } 821 } 822 823 void 824 in6_pcbpurgeif(struct inpcbtable *table, struct ifnet *ifp) 825 { 826 struct rtentry *rt; 827 struct in6pcb *in6p, *nin6p; 828 829 for (in6p = (struct in6pcb *)CIRCLEQ_FIRST(&table->inpt_queue); 830 in6p != (void *)&table->inpt_queue; 831 in6p = nin6p) { 832 nin6p = (struct in6pcb *)CIRCLEQ_NEXT(in6p, in6p_queue); 833 if (in6p->in6p_af != AF_INET6) 834 continue; 835 if ((rt = rtcache_validate(&in6p->in6p_route)) != NULL && 836 rt->rt_ifp == ifp) 837 in6_rtchange(in6p, 0); 838 } 839 } 840 841 /* 842 * Check for alternatives when higher level complains 843 * about service problems. For now, invalidate cached 844 * routing information. If the route was created dynamically 845 * (by a redirect), time to try a default gateway again. 846 */ 847 void 848 in6_losing(struct in6pcb *in6p) 849 { 850 struct rtentry *rt; 851 struct rt_addrinfo info; 852 853 if (in6p->in6p_af != AF_INET6) 854 return; 855 856 if ((rt = rtcache_validate(&in6p->in6p_route)) == NULL) 857 return; 858 859 memset(&info, 0, sizeof(info)); 860 info.rti_info[RTAX_DST] = rtcache_getdst(&in6p->in6p_route); 861 info.rti_info[RTAX_GATEWAY] = rt->rt_gateway; 862 info.rti_info[RTAX_NETMASK] = rt_mask(rt); 863 rt_missmsg(RTM_LOSING, &info, rt->rt_flags, 0); 864 if (rt->rt_flags & RTF_DYNAMIC) { 865 (void)rtrequest(RTM_DELETE, rt_getkey(rt), 866 rt->rt_gateway, rt_mask(rt), rt->rt_flags, NULL); 867 } 868 /* 869 * A new route can be allocated 870 * the next time output is attempted. 871 */ 872 rtcache_free(&in6p->in6p_route); 873 } 874 875 /* 876 * After a routing change, flush old routing. A new route can be 877 * allocated the next time output is attempted. 878 */ 879 void 880 in6_rtchange(struct in6pcb *in6p, int errno) 881 { 882 if (in6p->in6p_af != AF_INET6) 883 return; 884 885 rtcache_free(&in6p->in6p_route); 886 /* 887 * A new route can be allocated the next time 888 * output is attempted. 889 */ 890 } 891 892 struct in6pcb * 893 in6_pcblookup_port(struct inpcbtable *table, struct in6_addr *laddr6, 894 u_int lport_arg, int lookup_wildcard) 895 { 896 struct inpcbhead *head; 897 struct inpcb_hdr *inph; 898 struct in6pcb *in6p, *match = 0; 899 int matchwild = 3, wildcard; 900 u_int16_t lport = lport_arg; 901 902 head = IN6PCBHASH_PORT(table, lport); 903 LIST_FOREACH(inph, head, inph_lhash) { 904 in6p = (struct in6pcb *)inph; 905 if (in6p->in6p_af != AF_INET6) 906 continue; 907 908 if (in6p->in6p_lport != lport) 909 continue; 910 wildcard = 0; 911 if (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_faddr)) { 912 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 913 continue; 914 } 915 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) 916 wildcard++; 917 if (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr)) { 918 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 919 continue; 920 if (!IN6_IS_ADDR_V4MAPPED(laddr6)) 921 continue; 922 923 /* duplicate of IPv4 logic */ 924 wildcard = 0; 925 if (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_faddr) && 926 in6p->in6p_faddr.s6_addr32[3]) 927 wildcard++; 928 if (!in6p->in6p_laddr.s6_addr32[3]) { 929 if (laddr6->s6_addr32[3]) 930 wildcard++; 931 } else { 932 if (!laddr6->s6_addr32[3]) 933 wildcard++; 934 else { 935 if (in6p->in6p_laddr.s6_addr32[3] != 936 laddr6->s6_addr32[3]) 937 continue; 938 } 939 } 940 } else if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) { 941 if (IN6_IS_ADDR_V4MAPPED(laddr6)) { 942 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 943 continue; 944 } 945 if (!IN6_IS_ADDR_UNSPECIFIED(laddr6)) 946 wildcard++; 947 } else { 948 if (IN6_IS_ADDR_V4MAPPED(laddr6)) { 949 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 950 continue; 951 } 952 if (IN6_IS_ADDR_UNSPECIFIED(laddr6)) 953 wildcard++; 954 else { 955 if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, 956 laddr6)) 957 continue; 958 } 959 } 960 if (wildcard && !lookup_wildcard) 961 continue; 962 if (wildcard < matchwild) { 963 match = in6p; 964 matchwild = wildcard; 965 if (matchwild == 0) 966 break; 967 } 968 } 969 return (match); 970 } 971 #undef continue 972 973 /* 974 * WARNING: return value (rtentry) could be IPv4 one if in6pcb is connected to 975 * IPv4 mapped address. 976 */ 977 struct rtentry * 978 in6_pcbrtentry(struct in6pcb *in6p) 979 { 980 struct rtentry *rt; 981 struct route *ro; 982 union { 983 const struct sockaddr *sa; 984 const struct sockaddr_in6 *sa6; 985 #ifdef INET 986 const struct sockaddr_in *sa4; 987 #endif 988 } cdst; 989 990 ro = &in6p->in6p_route; 991 992 if (in6p->in6p_af != AF_INET6) 993 return (NULL); 994 995 cdst.sa = rtcache_getdst(ro); 996 if (cdst.sa == NULL) 997 ; 998 #ifdef INET 999 else if (cdst.sa->sa_family == AF_INET) { 1000 KASSERT(IN6_IS_ADDR_V4MAPPED(&in6p->in6p_faddr)); 1001 if (cdst.sa4->sin_addr.s_addr != in6p->in6p_faddr.s6_addr32[3]) 1002 rtcache_free(ro); 1003 } 1004 #endif 1005 else { 1006 if (!IN6_ARE_ADDR_EQUAL(&cdst.sa6->sin6_addr, 1007 &in6p->in6p_faddr)) 1008 rtcache_free(ro); 1009 } 1010 if ((rt = rtcache_validate(ro)) == NULL) 1011 rt = rtcache_update(ro, 1); 1012 #ifdef INET 1013 if (rt == NULL && IN6_IS_ADDR_V4MAPPED(&in6p->in6p_faddr)) { 1014 union { 1015 struct sockaddr dst; 1016 struct sockaddr_in dst4; 1017 } u; 1018 struct in_addr addr; 1019 1020 addr.s_addr = in6p->in6p_faddr.s6_addr32[3]; 1021 1022 sockaddr_in_init(&u.dst4, &addr, 0); 1023 rtcache_setdst(ro, &u.dst); 1024 1025 rt = rtcache_init(ro); 1026 } else 1027 #endif 1028 if (rt == NULL && !IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) { 1029 union { 1030 struct sockaddr dst; 1031 struct sockaddr_in6 dst6; 1032 } u; 1033 1034 sockaddr_in6_init(&u.dst6, &in6p->in6p_faddr, 0, 0, 0); 1035 rtcache_setdst(ro, &u.dst); 1036 1037 rt = rtcache_init(ro); 1038 } 1039 return rt; 1040 } 1041 1042 struct in6pcb * 1043 in6_pcblookup_connect(struct inpcbtable *table, const struct in6_addr *faddr6, 1044 u_int fport_arg, const struct in6_addr *laddr6, u_int lport_arg, 1045 int faith) 1046 { 1047 struct inpcbhead *head; 1048 struct inpcb_hdr *inph; 1049 struct in6pcb *in6p; 1050 u_int16_t fport = fport_arg, lport = lport_arg; 1051 1052 head = IN6PCBHASH_CONNECT(table, faddr6, fport, laddr6, lport); 1053 LIST_FOREACH(inph, head, inph_hash) { 1054 in6p = (struct in6pcb *)inph; 1055 if (in6p->in6p_af != AF_INET6) 1056 continue; 1057 1058 /* find exact match on both source and dest */ 1059 if (in6p->in6p_fport != fport) 1060 continue; 1061 if (in6p->in6p_lport != lport) 1062 continue; 1063 if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) 1064 continue; 1065 if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, faddr6)) 1066 continue; 1067 if (IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) 1068 continue; 1069 if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, laddr6)) 1070 continue; 1071 if ((IN6_IS_ADDR_V4MAPPED(laddr6) || 1072 IN6_IS_ADDR_V4MAPPED(faddr6)) && 1073 (in6p->in6p_flags & IN6P_IPV6_V6ONLY)) 1074 continue; 1075 return in6p; 1076 } 1077 return NULL; 1078 } 1079 1080 struct in6pcb * 1081 in6_pcblookup_bind(struct inpcbtable *table, const struct in6_addr *laddr6, 1082 u_int lport_arg, int faith) 1083 { 1084 struct inpcbhead *head; 1085 struct inpcb_hdr *inph; 1086 struct in6pcb *in6p; 1087 u_int16_t lport = lport_arg; 1088 #ifdef INET 1089 struct in6_addr zero_mapped; 1090 #endif 1091 1092 head = IN6PCBHASH_BIND(table, laddr6, lport); 1093 LIST_FOREACH(inph, head, inph_hash) { 1094 in6p = (struct in6pcb *)inph; 1095 if (in6p->in6p_af != AF_INET6) 1096 continue; 1097 1098 if (faith && (in6p->in6p_flags & IN6P_FAITH) == 0) 1099 continue; 1100 if (in6p->in6p_fport != 0) 1101 continue; 1102 if (in6p->in6p_lport != lport) 1103 continue; 1104 if (IN6_IS_ADDR_V4MAPPED(laddr6) && 1105 (in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 1106 continue; 1107 if (IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, laddr6)) 1108 goto out; 1109 } 1110 #ifdef INET 1111 if (IN6_IS_ADDR_V4MAPPED(laddr6)) { 1112 memset(&zero_mapped, 0, sizeof(zero_mapped)); 1113 zero_mapped.s6_addr16[5] = 0xffff; 1114 head = IN6PCBHASH_BIND(table, &zero_mapped, lport); 1115 LIST_FOREACH(inph, head, inph_hash) { 1116 in6p = (struct in6pcb *)inph; 1117 if (in6p->in6p_af != AF_INET6) 1118 continue; 1119 1120 if (faith && (in6p->in6p_flags & IN6P_FAITH) == 0) 1121 continue; 1122 if (in6p->in6p_fport != 0) 1123 continue; 1124 if (in6p->in6p_lport != lport) 1125 continue; 1126 if ((in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 1127 continue; 1128 if (IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &zero_mapped)) 1129 goto out; 1130 } 1131 } 1132 #endif 1133 head = IN6PCBHASH_BIND(table, &zeroin6_addr, lport); 1134 LIST_FOREACH(inph, head, inph_hash) { 1135 in6p = (struct in6pcb *)inph; 1136 if (in6p->in6p_af != AF_INET6) 1137 continue; 1138 1139 if (faith && (in6p->in6p_flags & IN6P_FAITH) == 0) 1140 continue; 1141 if (in6p->in6p_fport != 0) 1142 continue; 1143 if (in6p->in6p_lport != lport) 1144 continue; 1145 if (IN6_IS_ADDR_V4MAPPED(laddr6) && 1146 (in6p->in6p_flags & IN6P_IPV6_V6ONLY) != 0) 1147 continue; 1148 if (IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &zeroin6_addr)) 1149 goto out; 1150 } 1151 return (NULL); 1152 1153 out: 1154 inph = &in6p->in6p_head; 1155 if (inph != LIST_FIRST(head)) { 1156 LIST_REMOVE(inph, inph_hash); 1157 LIST_INSERT_HEAD(head, inph, inph_hash); 1158 } 1159 return in6p; 1160 } 1161 1162 void 1163 in6_pcbstate(struct in6pcb *in6p, int state) 1164 { 1165 1166 if (in6p->in6p_af != AF_INET6) 1167 return; 1168 1169 if (in6p->in6p_state > IN6P_ATTACHED) 1170 LIST_REMOVE(&in6p->in6p_head, inph_hash); 1171 1172 switch (state) { 1173 case IN6P_BOUND: 1174 LIST_INSERT_HEAD(IN6PCBHASH_BIND(in6p->in6p_table, 1175 &in6p->in6p_laddr, in6p->in6p_lport), &in6p->in6p_head, 1176 inph_hash); 1177 break; 1178 case IN6P_CONNECTED: 1179 LIST_INSERT_HEAD(IN6PCBHASH_CONNECT(in6p->in6p_table, 1180 &in6p->in6p_faddr, in6p->in6p_fport, 1181 &in6p->in6p_laddr, in6p->in6p_lport), &in6p->in6p_head, 1182 inph_hash); 1183 break; 1184 } 1185 1186 in6p->in6p_state = state; 1187 } 1188
Indexes created Wed Oct 15 16:09:53 GMT 2025