1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * Copyright (c) 2010-2011 Juniper Networks, Inc. 6 * All rights reserved. 7 * 8 * Portions of this software were developed by Robert N. M. Watson under 9 * contract to Juniper Networks, Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $KAME: in6_pcb.c,v 1.31 2001/05/21 05:45:10 jinmei Exp $ 36 */ 37 38 /*- 39 * Copyright (c) 1982, 1986, 1991, 1993 40 * The Regents of the University of California. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 */ 66 67 #include <sys/cdefs.h> 68 #include "opt_inet.h" 69 #include "opt_inet6.h" 70 #include "opt_ipsec.h" 71 #include "opt_route.h" 72 #include "opt_rss.h" 73 74 #include <sys/hash.h> 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/malloc.h> 78 #include <sys/mbuf.h> 79 #include <sys/domain.h> 80 #include <sys/proc.h> 81 #include <sys/protosw.h> 82 #include <sys/smr.h> 83 #include <sys/socket.h> 84 #include <sys/socketvar.h> 85 #include <sys/sockio.h> 86 #include <sys/errno.h> 87 #include <sys/time.h> 88 #include <sys/priv.h> 89 #include <sys/proc.h> 90 #include <sys/jail.h> 91 92 #include <vm/uma.h> 93 94 #include <net/if.h> 95 #include <net/if_var.h> 96 #include <net/if_llatbl.h> 97 #include <net/if_types.h> 98 #include <net/route.h> 99 #include <net/route/nhop.h> 100 101 #include <netinet/in.h> 102 #include <netinet/in_var.h> 103 #include <netinet/in_systm.h> 104 #include <netinet/ip6.h> 105 #include <netinet/ip_var.h> 106 107 #include <netinet6/ip6_var.h> 108 #include <netinet6/nd6.h> 109 #include <netinet/in_pcb.h> 110 #include <netinet/in_pcb_var.h> 111 #include <netinet6/in6_pcb.h> 112 #include <netinet6/in6_fib.h> 113 #include <netinet6/scope6_var.h> 114 115 int 116 in6_pcbsetport(struct in6_addr *laddr, struct inpcb *inp, struct ucred *cred) 117 { 118 struct socket *so = inp->inp_socket; 119 u_int16_t lport = 0; 120 int error, lookupflags = 0; 121 #ifdef INVARIANTS 122 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo; 123 #endif 124 125 INP_WLOCK_ASSERT(inp); 126 INP_HASH_WLOCK_ASSERT(pcbinfo); 127 128 error = prison_local_ip6(cred, laddr, 129 ((inp->inp_flags & IN6P_IPV6_V6ONLY) != 0)); 130 if (error) 131 return(error); 132 133 /* XXX: this is redundant when called from in6_pcbbind */ 134 if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT|SO_REUSEPORT_LB)) == 0) 135 lookupflags = INPLOOKUP_WILDCARD; 136 137 inp->inp_flags |= INP_ANONPORT; 138 139 error = in_pcb_lport(inp, NULL, &lport, cred, lookupflags); 140 if (error != 0) 141 return (error); 142 143 inp->inp_lport = lport; 144 if (in_pcbinshash(inp) != 0) { 145 inp->in6p_laddr = in6addr_any; 146 inp->inp_lport = 0; 147 return (EAGAIN); 148 } 149 150 return (0); 151 } 152 153 int 154 in6_pcbbind(struct inpcb *inp, struct sockaddr_in6 *sin6, struct ucred *cred) 155 { 156 struct socket *so = inp->inp_socket; 157 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo; 158 u_short lport = 0; 159 int error, lookupflags = 0; 160 int reuseport = (so->so_options & SO_REUSEPORT); 161 162 /* 163 * XXX: Maybe we could let SO_REUSEPORT_LB set SO_REUSEPORT bit here 164 * so that we don't have to add to the (already messy) code below. 165 */ 166 int reuseport_lb = (so->so_options & SO_REUSEPORT_LB); 167 168 INP_WLOCK_ASSERT(inp); 169 INP_HASH_WLOCK_ASSERT(pcbinfo); 170 171 if (inp->inp_lport || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 172 return (EINVAL); 173 if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT|SO_REUSEPORT_LB)) == 0) 174 lookupflags = INPLOOKUP_WILDCARD; 175 if (sin6 == NULL) { 176 if ((error = prison_local_ip6(cred, &inp->in6p_laddr, 177 ((inp->inp_flags & IN6P_IPV6_V6ONLY) != 0))) != 0) 178 return (error); 179 } else { 180 KASSERT(sin6->sin6_family == AF_INET6, 181 ("%s: invalid address family for %p", __func__, sin6)); 182 KASSERT(sin6->sin6_len == sizeof(*sin6), 183 ("%s: invalid address length for %p", __func__, sin6)); 184 185 if ((error = sa6_embedscope(sin6, V_ip6_use_defzone)) != 0) 186 return(error); 187 188 if ((error = prison_local_ip6(cred, &sin6->sin6_addr, 189 ((inp->inp_flags & IN6P_IPV6_V6ONLY) != 0))) != 0) 190 return (error); 191 192 lport = sin6->sin6_port; 193 if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) { 194 /* 195 * Treat SO_REUSEADDR as SO_REUSEPORT for multicast; 196 * allow compepte duplication of binding if 197 * SO_REUSEPORT is set, or if SO_REUSEADDR is set 198 * and a multicast address is bound on both 199 * new and duplicated sockets. 200 */ 201 if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT)) != 0) 202 reuseport = SO_REUSEADDR|SO_REUSEPORT; 203 /* 204 * XXX: How to deal with SO_REUSEPORT_LB here? 205 * Treat same as SO_REUSEPORT for now. 206 */ 207 if ((so->so_options & 208 (SO_REUSEADDR|SO_REUSEPORT_LB)) != 0) 209 reuseport_lb = SO_REUSEADDR|SO_REUSEPORT_LB; 210 } else if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 211 struct epoch_tracker et; 212 struct ifaddr *ifa; 213 214 sin6->sin6_port = 0; /* yech... */ 215 NET_EPOCH_ENTER(et); 216 if ((ifa = ifa_ifwithaddr((struct sockaddr *)sin6)) == 217 NULL && 218 (inp->inp_flags & INP_BINDANY) == 0) { 219 NET_EPOCH_EXIT(et); 220 return (EADDRNOTAVAIL); 221 } 222 223 /* 224 * XXX: bind to an anycast address might accidentally 225 * cause sending a packet with anycast source address. 226 * We should allow to bind to a deprecated address, since 227 * the application dares to use it. 228 */ 229 if (ifa != NULL && 230 ((struct in6_ifaddr *)ifa)->ia6_flags & 231 (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|IN6_IFF_DETACHED)) { 232 NET_EPOCH_EXIT(et); 233 return (EADDRNOTAVAIL); 234 } 235 NET_EPOCH_EXIT(et); 236 } 237 if (lport) { 238 struct inpcb *t; 239 240 /* GROSS */ 241 if (ntohs(lport) <= V_ipport_reservedhigh && 242 ntohs(lport) >= V_ipport_reservedlow && 243 priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT)) 244 return (EACCES); 245 if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr) && 246 priv_check_cred(inp->inp_cred, PRIV_NETINET_REUSEPORT) != 0) { 247 t = in6_pcblookup_local(pcbinfo, 248 &sin6->sin6_addr, lport, 249 INPLOOKUP_WILDCARD, cred); 250 if (t != NULL && 251 (so->so_type != SOCK_STREAM || 252 IN6_IS_ADDR_UNSPECIFIED(&t->in6p_faddr)) && 253 (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) || 254 !IN6_IS_ADDR_UNSPECIFIED(&t->in6p_laddr) || 255 (t->inp_socket->so_options & SO_REUSEPORT) || 256 (t->inp_socket->so_options & SO_REUSEPORT_LB) == 0) && 257 (inp->inp_cred->cr_uid != 258 t->inp_cred->cr_uid)) 259 return (EADDRINUSE); 260 261 #ifdef INET 262 if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 && 263 IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 264 struct sockaddr_in sin; 265 266 in6_sin6_2_sin(&sin, sin6); 267 t = in_pcblookup_local(pcbinfo, 268 sin.sin_addr, lport, 269 INPLOOKUP_WILDCARD, cred); 270 if (t != NULL && 271 (so->so_type != SOCK_STREAM || 272 ntohl(t->inp_faddr.s_addr) == 273 INADDR_ANY) && 274 (inp->inp_cred->cr_uid != 275 t->inp_cred->cr_uid)) 276 return (EADDRINUSE); 277 } 278 #endif 279 } 280 t = in6_pcblookup_local(pcbinfo, &sin6->sin6_addr, 281 lport, lookupflags, cred); 282 if (t && (reuseport & t->inp_socket->so_options) == 0 && 283 (reuseport_lb & t->inp_socket->so_options) == 0) { 284 return (EADDRINUSE); 285 } 286 #ifdef INET 287 if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 && 288 IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 289 struct sockaddr_in sin; 290 291 in6_sin6_2_sin(&sin, sin6); 292 t = in_pcblookup_local(pcbinfo, sin.sin_addr, 293 lport, lookupflags, cred); 294 if (t && 295 (reuseport & t->inp_socket->so_options) == 0 && 296 (reuseport_lb & t->inp_socket->so_options) == 0 && 297 (ntohl(t->inp_laddr.s_addr) != INADDR_ANY || 298 (t->inp_vflag & INP_IPV6PROTO) != 0)) { 299 return (EADDRINUSE); 300 } 301 } 302 #endif 303 } 304 inp->in6p_laddr = sin6->sin6_addr; 305 } 306 if (lport == 0) { 307 if ((error = in6_pcbsetport(&inp->in6p_laddr, inp, cred)) != 0) { 308 /* Undo an address bind that may have occurred. */ 309 inp->in6p_laddr = in6addr_any; 310 return (error); 311 } 312 } else { 313 inp->inp_lport = lport; 314 if (in_pcbinshash(inp) != 0) { 315 inp->in6p_laddr = in6addr_any; 316 inp->inp_lport = 0; 317 return (EAGAIN); 318 } 319 } 320 return (0); 321 } 322 323 /* 324 * Transform old in6_pcbconnect() into an inner subroutine for new 325 * in6_pcbconnect(): Do some validity-checking on the remote 326 * address (in mbuf 'nam') and then determine local host address 327 * (i.e., which interface) to use to access that remote host. 328 * 329 * This preserves definition of in6_pcbconnect(), while supporting a 330 * slightly different version for T/TCP. (This is more than 331 * a bit of a kludge, but cleaning up the internal interfaces would 332 * have forced minor changes in every protocol). 333 */ 334 static int 335 in6_pcbladdr(struct inpcb *inp, struct sockaddr_in6 *sin6, 336 struct in6_addr *plocal_addr6, bool sas_required) 337 { 338 int error = 0; 339 int scope_ambiguous = 0; 340 struct in6_addr in6a; 341 342 NET_EPOCH_ASSERT(); 343 INP_WLOCK_ASSERT(inp); 344 INP_HASH_WLOCK_ASSERT(inp->inp_pcbinfo); /* XXXRW: why? */ 345 346 if (sin6->sin6_port == 0) 347 return (EADDRNOTAVAIL); 348 349 if (sin6->sin6_scope_id == 0 && !V_ip6_use_defzone) 350 scope_ambiguous = 1; 351 if ((error = sa6_embedscope(sin6, V_ip6_use_defzone)) != 0) 352 return(error); 353 354 if (!CK_STAILQ_EMPTY(&V_in6_ifaddrhead)) { 355 /* 356 * If the destination address is UNSPECIFIED addr, 357 * use the loopback addr, e.g ::1. 358 */ 359 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) 360 sin6->sin6_addr = in6addr_loopback; 361 } 362 if ((error = prison_remote_ip6(inp->inp_cred, &sin6->sin6_addr)) != 0) 363 return (error); 364 365 if (sas_required) { 366 error = in6_selectsrc_socket(sin6, inp->in6p_outputopts, 367 inp, inp->inp_cred, scope_ambiguous, &in6a, NULL); 368 if (error) 369 return (error); 370 } else { 371 /* 372 * Source address selection isn't required when syncache 373 * has already established connection and both source and 374 * destination addresses was chosen. 375 * 376 * This also includes the case when fwd_tag was used to 377 * select source address in tcp_input(). 378 */ 379 in6a = inp->in6p_laddr; 380 } 381 382 if (IN6_IS_ADDR_UNSPECIFIED(&in6a)) 383 return (EHOSTUNREACH); 384 /* 385 * Do not update this earlier, in case we return with an error. 386 * 387 * XXX: this in6_selectsrc_socket result might replace the bound local 388 * address with the address specified by setsockopt(IPV6_PKTINFO). 389 * Is it the intended behavior? 390 */ 391 *plocal_addr6 = in6a; 392 393 /* 394 * Don't do pcblookup call here; return interface in 395 * plocal_addr6 396 * and exit to caller, that will do the lookup. 397 */ 398 399 return (0); 400 } 401 402 /* 403 * Outer subroutine: 404 * Connect from a socket to a specified address. 405 * Both address and port must be specified in argument sin. 406 * If don't have a local address for this socket yet, 407 * then pick one. 408 */ 409 int 410 in6_pcbconnect(struct inpcb *inp, struct sockaddr_in6 *sin6, struct ucred *cred, 411 bool sas_required) 412 { 413 struct inpcbinfo *pcbinfo = inp->inp_pcbinfo; 414 struct sockaddr_in6 laddr6; 415 int error; 416 417 NET_EPOCH_ASSERT(); 418 INP_WLOCK_ASSERT(inp); 419 INP_HASH_WLOCK_ASSERT(pcbinfo); 420 KASSERT(sin6->sin6_family == AF_INET6, 421 ("%s: invalid address family for %p", __func__, sin6)); 422 KASSERT(sin6->sin6_len == sizeof(*sin6), 423 ("%s: invalid address length for %p", __func__, sin6)); 424 KASSERT(IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr), 425 ("%s: inp is already connected", __func__)); 426 427 bzero(&laddr6, sizeof(laddr6)); 428 laddr6.sin6_family = AF_INET6; 429 430 #ifdef ROUTE_MPATH 431 if (CALC_FLOWID_OUTBOUND) { 432 uint32_t hash_type, hash_val; 433 434 hash_val = fib6_calc_software_hash(&inp->in6p_laddr, 435 &sin6->sin6_addr, 0, sin6->sin6_port, 436 inp->inp_socket->so_proto->pr_protocol, &hash_type); 437 inp->inp_flowid = hash_val; 438 inp->inp_flowtype = hash_type; 439 } 440 #endif 441 /* 442 * Call inner routine, to assign local interface address. 443 * in6_pcbladdr() may automatically fill in sin6_scope_id. 444 */ 445 if ((error = in6_pcbladdr(inp, sin6, &laddr6.sin6_addr, 446 sas_required)) != 0) 447 return (error); 448 449 if (in6_pcblookup_hash_locked(pcbinfo, &sin6->sin6_addr, 450 sin6->sin6_port, IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr) ? 451 &laddr6.sin6_addr : &inp->in6p_laddr, inp->inp_lport, 0, 452 M_NODOM) != NULL) 453 return (EADDRINUSE); 454 if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) { 455 if (inp->inp_lport == 0) { 456 error = in_pcb_lport_dest(inp, 457 (struct sockaddr *) &laddr6, &inp->inp_lport, 458 (struct sockaddr *) sin6, sin6->sin6_port, cred, 459 INPLOOKUP_WILDCARD); 460 if (error) 461 return (error); 462 } 463 inp->in6p_laddr = laddr6.sin6_addr; 464 } 465 inp->in6p_faddr = sin6->sin6_addr; 466 inp->inp_fport = sin6->sin6_port; 467 /* update flowinfo - draft-itojun-ipv6-flowlabel-api-00 */ 468 inp->inp_flow &= ~IPV6_FLOWLABEL_MASK; 469 if (inp->inp_flags & IN6P_AUTOFLOWLABEL) 470 inp->inp_flow |= 471 (htonl(ip6_randomflowlabel()) & IPV6_FLOWLABEL_MASK); 472 473 if ((inp->inp_flags & INP_INHASHLIST) != 0) { 474 in_pcbrehash(inp); 475 } else { 476 in_pcbinshash(inp); 477 } 478 479 return (0); 480 } 481 482 void 483 in6_pcbdisconnect(struct inpcb *inp) 484 { 485 486 INP_WLOCK_ASSERT(inp); 487 INP_HASH_WLOCK_ASSERT(inp->inp_pcbinfo); 488 KASSERT(inp->inp_smr == SMR_SEQ_INVALID, 489 ("%s: inp %p was already disconnected", __func__, inp)); 490 491 in_pcbremhash_locked(inp); 492 493 /* See the comment in in_pcbinshash(). */ 494 inp->inp_smr = smr_advance(inp->inp_pcbinfo->ipi_smr); 495 496 /* XXX-MJ torn writes are visible to SMR lookup */ 497 memset(&inp->in6p_laddr, 0, sizeof(inp->in6p_laddr)); 498 memset(&inp->in6p_faddr, 0, sizeof(inp->in6p_faddr)); 499 inp->inp_fport = 0; 500 /* clear flowinfo - draft-itojun-ipv6-flowlabel-api-00 */ 501 inp->inp_flow &= ~IPV6_FLOWLABEL_MASK; 502 } 503 504 struct sockaddr * 505 in6_sockaddr(in_port_t port, struct in6_addr *addr_p) 506 { 507 struct sockaddr_in6 *sin6; 508 509 sin6 = malloc(sizeof *sin6, M_SONAME, M_WAITOK); 510 bzero(sin6, sizeof *sin6); 511 sin6->sin6_family = AF_INET6; 512 sin6->sin6_len = sizeof(*sin6); 513 sin6->sin6_port = port; 514 sin6->sin6_addr = *addr_p; 515 (void)sa6_recoverscope(sin6); /* XXX: should catch errors */ 516 517 return (struct sockaddr *)sin6; 518 } 519 520 struct sockaddr * 521 in6_v4mapsin6_sockaddr(in_port_t port, struct in_addr *addr_p) 522 { 523 struct sockaddr_in sin; 524 struct sockaddr_in6 *sin6_p; 525 526 bzero(&sin, sizeof sin); 527 sin.sin_family = AF_INET; 528 sin.sin_len = sizeof(sin); 529 sin.sin_port = port; 530 sin.sin_addr = *addr_p; 531 532 sin6_p = malloc(sizeof *sin6_p, M_SONAME, 533 M_WAITOK); 534 in6_sin_2_v4mapsin6(&sin, sin6_p); 535 536 return (struct sockaddr *)sin6_p; 537 } 538 539 int 540 in6_getsockaddr(struct socket *so, struct sockaddr **nam) 541 { 542 struct inpcb *inp; 543 struct in6_addr addr; 544 in_port_t port; 545 546 inp = sotoinpcb(so); 547 KASSERT(inp != NULL, ("in6_getsockaddr: inp == NULL")); 548 549 INP_RLOCK(inp); 550 port = inp->inp_lport; 551 addr = inp->in6p_laddr; 552 INP_RUNLOCK(inp); 553 554 *nam = in6_sockaddr(port, &addr); 555 return 0; 556 } 557 558 int 559 in6_getpeeraddr(struct socket *so, struct sockaddr **nam) 560 { 561 struct inpcb *inp; 562 struct in6_addr addr; 563 in_port_t port; 564 565 inp = sotoinpcb(so); 566 KASSERT(inp != NULL, ("in6_getpeeraddr: inp == NULL")); 567 568 INP_RLOCK(inp); 569 port = inp->inp_fport; 570 addr = inp->in6p_faddr; 571 INP_RUNLOCK(inp); 572 573 *nam = in6_sockaddr(port, &addr); 574 return 0; 575 } 576 577 int 578 in6_mapped_sockaddr(struct socket *so, struct sockaddr **nam) 579 { 580 struct inpcb *inp; 581 int error; 582 583 inp = sotoinpcb(so); 584 KASSERT(inp != NULL, ("in6_mapped_sockaddr: inp == NULL")); 585 586 #ifdef INET 587 if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) { 588 error = in_getsockaddr(so, nam); 589 if (error == 0) 590 in6_sin_2_v4mapsin6_in_sock(nam); 591 } else 592 #endif 593 { 594 /* scope issues will be handled in in6_getsockaddr(). */ 595 error = in6_getsockaddr(so, nam); 596 } 597 598 return error; 599 } 600 601 int 602 in6_mapped_peeraddr(struct socket *so, struct sockaddr **nam) 603 { 604 struct inpcb *inp; 605 int error; 606 607 inp = sotoinpcb(so); 608 KASSERT(inp != NULL, ("in6_mapped_peeraddr: inp == NULL")); 609 610 #ifdef INET 611 if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) { 612 error = in_getpeeraddr(so, nam); 613 if (error == 0) 614 in6_sin_2_v4mapsin6_in_sock(nam); 615 } else 616 #endif 617 /* scope issues will be handled in in6_getpeeraddr(). */ 618 error = in6_getpeeraddr(so, nam); 619 620 return error; 621 } 622 623 /* 624 * Pass some notification to all connections of a protocol 625 * associated with address dst. The local address and/or port numbers 626 * may be specified to limit the search. The "usual action" will be 627 * taken, depending on the ctlinput cmd. The caller must filter any 628 * cmds that are uninteresting (e.g., no error in the map). 629 * Call the protocol specific routine (if any) to report 630 * any errors for each matching socket. 631 */ 632 static bool 633 inp_match6(const struct inpcb *inp, void *v __unused) 634 { 635 636 return ((inp->inp_vflag & INP_IPV6) != 0); 637 } 638 639 void 640 in6_pcbnotify(struct inpcbinfo *pcbinfo, struct sockaddr_in6 *sa6_dst, 641 u_int fport_arg, const struct sockaddr_in6 *src, u_int lport_arg, 642 int errno, void *cmdarg, 643 struct inpcb *(*notify)(struct inpcb *, int)) 644 { 645 struct inpcb_iterator inpi = INP_ITERATOR(pcbinfo, INPLOOKUP_WLOCKPCB, 646 inp_match6, NULL); 647 struct inpcb *inp; 648 struct sockaddr_in6 sa6_src; 649 u_short fport = fport_arg, lport = lport_arg; 650 u_int32_t flowinfo; 651 652 if (IN6_IS_ADDR_UNSPECIFIED(&sa6_dst->sin6_addr)) 653 return; 654 655 /* 656 * note that src can be NULL when we get notify by local fragmentation. 657 */ 658 sa6_src = (src == NULL) ? sa6_any : *src; 659 flowinfo = sa6_src.sin6_flowinfo; 660 661 while ((inp = inp_next(&inpi)) != NULL) { 662 INP_WLOCK_ASSERT(inp); 663 /* 664 * If the error designates a new path MTU for a destination 665 * and the application (associated with this socket) wanted to 666 * know the value, notify. 667 * XXX: should we avoid to notify the value to TCP sockets? 668 */ 669 if (errno == EMSGSIZE && cmdarg != NULL) 670 ip6_notify_pmtu(inp, sa6_dst, *(uint32_t *)cmdarg); 671 672 /* 673 * Detect if we should notify the error. If no source and 674 * destination ports are specified, but non-zero flowinfo and 675 * local address match, notify the error. This is the case 676 * when the error is delivered with an encrypted buffer 677 * by ESP. Otherwise, just compare addresses and ports 678 * as usual. 679 */ 680 if (lport == 0 && fport == 0 && flowinfo && 681 inp->inp_socket != NULL && 682 flowinfo == (inp->inp_flow & IPV6_FLOWLABEL_MASK) && 683 IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, &sa6_src.sin6_addr)) 684 goto do_notify; 685 else if (!IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, 686 &sa6_dst->sin6_addr) || 687 inp->inp_socket == 0 || 688 (lport && inp->inp_lport != lport) || 689 (!IN6_IS_ADDR_UNSPECIFIED(&sa6_src.sin6_addr) && 690 !IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, 691 &sa6_src.sin6_addr)) || 692 (fport && inp->inp_fport != fport)) { 693 continue; 694 } 695 696 do_notify: 697 if (notify) 698 (*notify)(inp, errno); 699 } 700 } 701 702 /* 703 * Lookup a PCB based on the local address and port. Caller must hold the 704 * hash lock. No inpcb locks or references are acquired. 705 */ 706 struct inpcb * 707 in6_pcblookup_local(struct inpcbinfo *pcbinfo, struct in6_addr *laddr, 708 u_short lport, int lookupflags, struct ucred *cred) 709 { 710 struct inpcb *inp; 711 int matchwild = 3, wildcard; 712 713 KASSERT((lookupflags & ~(INPLOOKUP_WILDCARD)) == 0, 714 ("%s: invalid lookup flags %d", __func__, lookupflags)); 715 716 INP_HASH_LOCK_ASSERT(pcbinfo); 717 718 if ((lookupflags & INPLOOKUP_WILDCARD) == 0) { 719 struct inpcbhead *head; 720 /* 721 * Look for an unconnected (wildcard foreign addr) PCB that 722 * matches the local address and port we're looking for. 723 */ 724 head = &pcbinfo->ipi_hash_wild[INP_PCBHASH_WILD(lport, 725 pcbinfo->ipi_hashmask)]; 726 CK_LIST_FOREACH(inp, head, inp_hash_wild) { 727 /* XXX inp locking */ 728 if ((inp->inp_vflag & INP_IPV6) == 0) 729 continue; 730 if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) && 731 IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) && 732 inp->inp_lport == lport) { 733 /* Found. */ 734 if (prison_equal_ip6(cred->cr_prison, 735 inp->inp_cred->cr_prison)) 736 return (inp); 737 } 738 } 739 /* 740 * Not found. 741 */ 742 return (NULL); 743 } else { 744 struct inpcbporthead *porthash; 745 struct inpcbport *phd; 746 struct inpcb *match = NULL; 747 /* 748 * Best fit PCB lookup. 749 * 750 * First see if this local port is in use by looking on the 751 * port hash list. 752 */ 753 porthash = &pcbinfo->ipi_porthashbase[INP_PCBPORTHASH(lport, 754 pcbinfo->ipi_porthashmask)]; 755 CK_LIST_FOREACH(phd, porthash, phd_hash) { 756 if (phd->phd_port == lport) 757 break; 758 } 759 if (phd != NULL) { 760 /* 761 * Port is in use by one or more PCBs. Look for best 762 * fit. 763 */ 764 CK_LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) { 765 wildcard = 0; 766 if (!prison_equal_ip6(cred->cr_prison, 767 inp->inp_cred->cr_prison)) 768 continue; 769 /* XXX inp locking */ 770 if ((inp->inp_vflag & INP_IPV6) == 0) 771 continue; 772 if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr)) 773 wildcard++; 774 if (!IN6_IS_ADDR_UNSPECIFIED( 775 &inp->in6p_laddr)) { 776 if (IN6_IS_ADDR_UNSPECIFIED(laddr)) 777 wildcard++; 778 else if (!IN6_ARE_ADDR_EQUAL( 779 &inp->in6p_laddr, laddr)) 780 continue; 781 } else { 782 if (!IN6_IS_ADDR_UNSPECIFIED(laddr)) 783 wildcard++; 784 } 785 if (wildcard < matchwild) { 786 match = inp; 787 matchwild = wildcard; 788 if (matchwild == 0) 789 break; 790 } 791 } 792 } 793 return (match); 794 } 795 } 796 797 static bool 798 in6_multi_match(const struct inpcb *inp, void *v __unused) 799 { 800 801 if ((inp->inp_vflag & INP_IPV6) && inp->in6p_moptions != NULL) 802 return (true); 803 else 804 return (false); 805 } 806 807 void 808 in6_pcbpurgeif0(struct inpcbinfo *pcbinfo, struct ifnet *ifp) 809 { 810 struct inpcb_iterator inpi = INP_ITERATOR(pcbinfo, INPLOOKUP_RLOCKPCB, 811 in6_multi_match, NULL); 812 struct inpcb *inp; 813 struct in6_multi *inm; 814 struct in6_mfilter *imf; 815 struct ip6_moptions *im6o; 816 817 IN6_MULTI_LOCK_ASSERT(); 818 819 while ((inp = inp_next(&inpi)) != NULL) { 820 INP_RLOCK_ASSERT(inp); 821 822 im6o = inp->in6p_moptions; 823 /* 824 * Unselect the outgoing ifp for multicast if it 825 * is being detached. 826 */ 827 if (im6o->im6o_multicast_ifp == ifp) 828 im6o->im6o_multicast_ifp = NULL; 829 /* 830 * Drop multicast group membership if we joined 831 * through the interface being detached. 832 */ 833 restart: 834 IP6_MFILTER_FOREACH(imf, &im6o->im6o_head) { 835 if ((inm = imf->im6f_in6m) == NULL) 836 continue; 837 if (inm->in6m_ifp != ifp) 838 continue; 839 ip6_mfilter_remove(&im6o->im6o_head, imf); 840 in6_leavegroup_locked(inm, NULL); 841 ip6_mfilter_free(imf); 842 goto restart; 843 } 844 } 845 } 846 847 /* 848 * Check for alternatives when higher level complains 849 * about service problems. For now, invalidate cached 850 * routing information. If the route was created dynamically 851 * (by a redirect), time to try a default gateway again. 852 */ 853 void 854 in6_losing(struct inpcb *inp) 855 { 856 857 RO_INVALIDATE_CACHE(&inp->inp_route6); 858 } 859 860 /* 861 * After a routing change, flush old routing 862 * and allocate a (hopefully) better one. 863 */ 864 struct inpcb * 865 in6_rtchange(struct inpcb *inp, int errno __unused) 866 { 867 868 RO_INVALIDATE_CACHE(&inp->inp_route6); 869 return inp; 870 } 871 872 static bool 873 in6_pcblookup_lb_numa_match(const struct inpcblbgroup *grp, int domain) 874 { 875 return (domain == M_NODOM || domain == grp->il_numa_domain); 876 } 877 878 static struct inpcb * 879 in6_pcblookup_lbgroup(const struct inpcbinfo *pcbinfo, 880 const struct in6_addr *faddr, uint16_t fport, const struct in6_addr *laddr, 881 uint16_t lport, uint8_t domain) 882 { 883 const struct inpcblbgrouphead *hdr; 884 struct inpcblbgroup *grp; 885 struct inpcblbgroup *jail_exact, *jail_wild, *local_exact, *local_wild; 886 887 INP_HASH_LOCK_ASSERT(pcbinfo); 888 889 hdr = &pcbinfo->ipi_lbgrouphashbase[ 890 INP_PCBPORTHASH(lport, pcbinfo->ipi_lbgrouphashmask)]; 891 892 /* 893 * Search for an LB group match based on the following criteria: 894 * - prefer jailed groups to non-jailed groups 895 * - prefer exact source address matches to wildcard matches 896 * - prefer groups bound to the specified NUMA domain 897 */ 898 jail_exact = jail_wild = local_exact = local_wild = NULL; 899 CK_LIST_FOREACH(grp, hdr, il_list) { 900 bool injail; 901 902 #ifdef INET 903 if (!(grp->il_vflag & INP_IPV6)) 904 continue; 905 #endif 906 if (grp->il_lport != lport) 907 continue; 908 909 injail = prison_flag(grp->il_cred, PR_IP6) != 0; 910 if (injail && prison_check_ip6_locked(grp->il_cred->cr_prison, 911 laddr) != 0) 912 continue; 913 914 if (IN6_ARE_ADDR_EQUAL(&grp->il6_laddr, laddr)) { 915 if (injail) { 916 jail_exact = grp; 917 if (in6_pcblookup_lb_numa_match(grp, domain)) 918 /* This is a perfect match. */ 919 goto out; 920 } else if (local_exact == NULL || 921 in6_pcblookup_lb_numa_match(grp, domain)) { 922 local_exact = grp; 923 } 924 } else if (IN6_IS_ADDR_UNSPECIFIED(&grp->il6_laddr)) { 925 if (injail) { 926 if (jail_wild == NULL || 927 in6_pcblookup_lb_numa_match(grp, domain)) 928 jail_wild = grp; 929 } else if (local_wild == NULL || 930 in6_pcblookup_lb_numa_match(grp, domain)) { 931 local_wild = grp; 932 } 933 } 934 } 935 936 if (jail_exact != NULL) 937 grp = jail_exact; 938 else if (jail_wild != NULL) 939 grp = jail_wild; 940 else if (local_exact != NULL) 941 grp = local_exact; 942 else 943 grp = local_wild; 944 if (grp == NULL) 945 return (NULL); 946 out: 947 return (grp->il_inp[INP6_PCBLBGROUP_PKTHASH(faddr, lport, fport) % 948 grp->il_inpcnt]); 949 } 950 951 static bool 952 in6_pcblookup_exact_match(const struct inpcb *inp, const struct in6_addr *faddr, 953 u_short fport, const struct in6_addr *laddr, u_short lport) 954 { 955 /* XXX inp locking */ 956 if ((inp->inp_vflag & INP_IPV6) == 0) 957 return (false); 958 if (IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, faddr) && 959 IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) && 960 inp->inp_fport == fport && inp->inp_lport == lport) 961 return (true); 962 return (false); 963 } 964 965 static struct inpcb * 966 in6_pcblookup_hash_exact(struct inpcbinfo *pcbinfo, 967 const struct in6_addr *faddr, u_short fport, 968 const struct in6_addr *laddr, u_short lport) 969 { 970 struct inpcbhead *head; 971 struct inpcb *inp; 972 973 INP_HASH_LOCK_ASSERT(pcbinfo); 974 975 /* 976 * First look for an exact match. 977 */ 978 head = &pcbinfo->ipi_hash_exact[INP6_PCBHASH(faddr, lport, fport, 979 pcbinfo->ipi_hashmask)]; 980 CK_LIST_FOREACH(inp, head, inp_hash_exact) { 981 if (in6_pcblookup_exact_match(inp, faddr, fport, laddr, lport)) 982 return (inp); 983 } 984 return (NULL); 985 } 986 987 typedef enum { 988 INPLOOKUP_MATCH_NONE = 0, 989 INPLOOKUP_MATCH_WILD = 1, 990 INPLOOKUP_MATCH_LADDR = 2, 991 } inp_lookup_match_t; 992 993 static inp_lookup_match_t 994 in6_pcblookup_wild_match(const struct inpcb *inp, const struct in6_addr *laddr, 995 u_short lport) 996 { 997 /* XXX inp locking */ 998 if ((inp->inp_vflag & INP_IPV6) == 0) 999 return (INPLOOKUP_MATCH_NONE); 1000 if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) || 1001 inp->inp_lport != lport) 1002 return (INPLOOKUP_MATCH_NONE); 1003 if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 1004 return (INPLOOKUP_MATCH_WILD); 1005 if (IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr)) 1006 return (INPLOOKUP_MATCH_LADDR); 1007 return (INPLOOKUP_MATCH_NONE); 1008 } 1009 1010 #define INP_LOOKUP_AGAIN ((struct inpcb *)(uintptr_t)-1) 1011 1012 static struct inpcb * 1013 in6_pcblookup_hash_wild_smr(struct inpcbinfo *pcbinfo, 1014 const struct in6_addr *faddr, u_short fport, const struct in6_addr *laddr, 1015 u_short lport, const inp_lookup_t lockflags) 1016 { 1017 struct inpcbhead *head; 1018 struct inpcb *inp; 1019 1020 KASSERT(SMR_ENTERED(pcbinfo->ipi_smr), 1021 ("%s: not in SMR read section", __func__)); 1022 1023 head = &pcbinfo->ipi_hash_wild[INP_PCBHASH_WILD(lport, 1024 pcbinfo->ipi_hashmask)]; 1025 CK_LIST_FOREACH(inp, head, inp_hash_wild) { 1026 inp_lookup_match_t match; 1027 1028 match = in6_pcblookup_wild_match(inp, laddr, lport); 1029 if (match == INPLOOKUP_MATCH_NONE) 1030 continue; 1031 1032 if (__predict_true(inp_smr_lock(inp, lockflags))) { 1033 match = in6_pcblookup_wild_match(inp, laddr, lport); 1034 if (match != INPLOOKUP_MATCH_NONE && 1035 prison_check_ip6_locked(inp->inp_cred->cr_prison, 1036 laddr) == 0) 1037 return (inp); 1038 inp_unlock(inp, lockflags); 1039 } 1040 1041 /* 1042 * The matching socket disappeared out from under us. Fall back 1043 * to a serialized lookup. 1044 */ 1045 return (INP_LOOKUP_AGAIN); 1046 } 1047 return (NULL); 1048 } 1049 1050 static struct inpcb * 1051 in6_pcblookup_hash_wild_locked(struct inpcbinfo *pcbinfo, 1052 const struct in6_addr *faddr, u_short fport, const struct in6_addr *laddr, 1053 u_short lport) 1054 { 1055 struct inpcbhead *head; 1056 struct inpcb *inp, *jail_wild, *local_exact, *local_wild; 1057 1058 INP_HASH_LOCK_ASSERT(pcbinfo); 1059 1060 /* 1061 * Order of socket selection - we always prefer jails. 1062 * 1. jailed, non-wild. 1063 * 2. jailed, wild. 1064 * 3. non-jailed, non-wild. 1065 * 4. non-jailed, wild. 1066 */ 1067 head = &pcbinfo->ipi_hash_wild[INP_PCBHASH_WILD(lport, 1068 pcbinfo->ipi_hashmask)]; 1069 local_wild = local_exact = jail_wild = NULL; 1070 CK_LIST_FOREACH(inp, head, inp_hash_wild) { 1071 inp_lookup_match_t match; 1072 bool injail; 1073 1074 match = in6_pcblookup_wild_match(inp, laddr, lport); 1075 if (match == INPLOOKUP_MATCH_NONE) 1076 continue; 1077 1078 injail = prison_flag(inp->inp_cred, PR_IP6) != 0; 1079 if (injail) { 1080 if (prison_check_ip6_locked( 1081 inp->inp_cred->cr_prison, laddr) != 0) 1082 continue; 1083 } else { 1084 if (local_exact != NULL) 1085 continue; 1086 } 1087 1088 if (match == INPLOOKUP_MATCH_LADDR) { 1089 if (injail) 1090 return (inp); 1091 else 1092 local_exact = inp; 1093 } else { 1094 if (injail) 1095 jail_wild = inp; 1096 else 1097 local_wild = inp; 1098 } 1099 } 1100 1101 if (jail_wild != NULL) 1102 return (jail_wild); 1103 if (local_exact != NULL) 1104 return (local_exact); 1105 if (local_wild != NULL) 1106 return (local_wild); 1107 return (NULL); 1108 } 1109 1110 struct inpcb * 1111 in6_pcblookup_hash_locked(struct inpcbinfo *pcbinfo, 1112 const struct in6_addr *faddr, u_int fport_arg, 1113 const struct in6_addr *laddr, u_int lport_arg, 1114 int lookupflags, uint8_t numa_domain) 1115 { 1116 struct inpcb *inp; 1117 u_short fport = fport_arg, lport = lport_arg; 1118 1119 KASSERT((lookupflags & ~INPLOOKUP_WILDCARD) == 0, 1120 ("%s: invalid lookup flags %d", __func__, lookupflags)); 1121 KASSERT(!IN6_IS_ADDR_UNSPECIFIED(faddr), 1122 ("%s: invalid foreign address", __func__)); 1123 KASSERT(!IN6_IS_ADDR_UNSPECIFIED(laddr), 1124 ("%s: invalid local address", __func__)); 1125 INP_HASH_LOCK_ASSERT(pcbinfo); 1126 1127 inp = in6_pcblookup_hash_exact(pcbinfo, faddr, fport, laddr, lport); 1128 if (inp != NULL) 1129 return (inp); 1130 1131 if ((lookupflags & INPLOOKUP_WILDCARD) != 0) { 1132 inp = in6_pcblookup_lbgroup(pcbinfo, faddr, fport, laddr, 1133 lport, numa_domain); 1134 if (inp == NULL) { 1135 inp = in6_pcblookup_hash_wild_locked(pcbinfo, faddr, 1136 fport, laddr, lport); 1137 } 1138 } 1139 return (inp); 1140 } 1141 1142 static struct inpcb * 1143 in6_pcblookup_hash(struct inpcbinfo *pcbinfo, const struct in6_addr *faddr, 1144 u_int fport, const struct in6_addr *laddr, u_int lport, int lookupflags, 1145 uint8_t numa_domain) 1146 { 1147 struct inpcb *inp; 1148 const inp_lookup_t lockflags = lookupflags & INPLOOKUP_LOCKMASK; 1149 1150 KASSERT((lookupflags & (INPLOOKUP_RLOCKPCB | INPLOOKUP_WLOCKPCB)) != 0, 1151 ("%s: LOCKPCB not set", __func__)); 1152 1153 INP_HASH_WLOCK(pcbinfo); 1154 inp = in6_pcblookup_hash_locked(pcbinfo, faddr, fport, laddr, lport, 1155 lookupflags & ~INPLOOKUP_LOCKMASK, numa_domain); 1156 if (inp != NULL && !inp_trylock(inp, lockflags)) { 1157 in_pcbref(inp); 1158 INP_HASH_WUNLOCK(pcbinfo); 1159 inp_lock(inp, lockflags); 1160 if (in_pcbrele(inp, lockflags)) 1161 /* XXX-MJ or retry until we get a negative match? */ 1162 inp = NULL; 1163 } else { 1164 INP_HASH_WUNLOCK(pcbinfo); 1165 } 1166 return (inp); 1167 } 1168 1169 static struct inpcb * 1170 in6_pcblookup_hash_smr(struct inpcbinfo *pcbinfo, struct in6_addr *faddr, 1171 u_int fport_arg, struct in6_addr *laddr, u_int lport_arg, int lookupflags, 1172 uint8_t numa_domain) 1173 { 1174 struct inpcb *inp; 1175 const inp_lookup_t lockflags = lookupflags & INPLOOKUP_LOCKMASK; 1176 const u_short fport = fport_arg, lport = lport_arg; 1177 1178 KASSERT((lookupflags & ~INPLOOKUP_MASK) == 0, 1179 ("%s: invalid lookup flags %d", __func__, lookupflags)); 1180 KASSERT((lookupflags & (INPLOOKUP_RLOCKPCB | INPLOOKUP_WLOCKPCB)) != 0, 1181 ("%s: LOCKPCB not set", __func__)); 1182 1183 smr_enter(pcbinfo->ipi_smr); 1184 inp = in6_pcblookup_hash_exact(pcbinfo, faddr, fport, laddr, lport); 1185 if (inp != NULL) { 1186 if (__predict_true(inp_smr_lock(inp, lockflags))) { 1187 if (__predict_true(in6_pcblookup_exact_match(inp, 1188 faddr, fport, laddr, lport))) 1189 return (inp); 1190 inp_unlock(inp, lockflags); 1191 } 1192 /* 1193 * We failed to lock the inpcb, or its connection state changed 1194 * out from under us. Fall back to a precise search. 1195 */ 1196 return (in6_pcblookup_hash(pcbinfo, faddr, fport, laddr, lport, 1197 lookupflags, numa_domain)); 1198 } 1199 1200 if ((lookupflags & INPLOOKUP_WILDCARD) != 0) { 1201 inp = in6_pcblookup_lbgroup(pcbinfo, faddr, fport, 1202 laddr, lport, numa_domain); 1203 if (inp != NULL) { 1204 if (__predict_true(inp_smr_lock(inp, lockflags))) { 1205 if (__predict_true(in6_pcblookup_wild_match(inp, 1206 laddr, lport) != INPLOOKUP_MATCH_NONE)) 1207 return (inp); 1208 inp_unlock(inp, lockflags); 1209 } 1210 inp = INP_LOOKUP_AGAIN; 1211 } else { 1212 inp = in6_pcblookup_hash_wild_smr(pcbinfo, faddr, fport, 1213 laddr, lport, lockflags); 1214 } 1215 if (inp == INP_LOOKUP_AGAIN) { 1216 return (in6_pcblookup_hash(pcbinfo, faddr, fport, laddr, 1217 lport, lookupflags, numa_domain)); 1218 } 1219 } 1220 1221 if (inp == NULL) 1222 smr_exit(pcbinfo->ipi_smr); 1223 1224 return (inp); 1225 } 1226 1227 /* 1228 * Public inpcb lookup routines, accepting a 4-tuple, and optionally, an mbuf 1229 * from which a pre-calculated hash value may be extracted. 1230 */ 1231 struct inpcb * 1232 in6_pcblookup(struct inpcbinfo *pcbinfo, struct in6_addr *faddr, u_int fport, 1233 struct in6_addr *laddr, u_int lport, int lookupflags, 1234 struct ifnet *ifp __unused) 1235 { 1236 return (in6_pcblookup_hash_smr(pcbinfo, faddr, fport, laddr, lport, 1237 lookupflags, M_NODOM)); 1238 } 1239 1240 struct inpcb * 1241 in6_pcblookup_mbuf(struct inpcbinfo *pcbinfo, struct in6_addr *faddr, 1242 u_int fport, struct in6_addr *laddr, u_int lport, int lookupflags, 1243 struct ifnet *ifp __unused, struct mbuf *m) 1244 { 1245 return (in6_pcblookup_hash_smr(pcbinfo, faddr, fport, laddr, lport, 1246 lookupflags, m->m_pkthdr.numa_domain)); 1247 } 1248 1249 void 1250 init_sin6(struct sockaddr_in6 *sin6, struct mbuf *m, int srcordst) 1251 { 1252 struct ip6_hdr *ip; 1253 1254 ip = mtod(m, struct ip6_hdr *); 1255 bzero(sin6, sizeof(*sin6)); 1256 sin6->sin6_len = sizeof(*sin6); 1257 sin6->sin6_family = AF_INET6; 1258 sin6->sin6_addr = srcordst ? ip->ip6_dst : ip->ip6_src; 1259 1260 (void)sa6_recoverscope(sin6); /* XXX: should catch errors... */ 1261 1262 return; 1263 } 1264