1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2001 Daniel Hartmeier 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $ 32 */ 33 34 #ifndef _NET_PFVAR_H_ 35 #define _NET_PFVAR_H_ 36 37 #include <sys/param.h> 38 #include <sys/queue.h> 39 #include <sys/counter.h> 40 #include <sys/cpuset.h> 41 #include <sys/epoch.h> 42 #include <sys/malloc.h> 43 #include <sys/nv.h> 44 #include <sys/refcount.h> 45 #include <sys/sdt.h> 46 #include <sys/sysctl.h> 47 #include <sys/smp.h> 48 #include <sys/lock.h> 49 #include <sys/rmlock.h> 50 #include <sys/tree.h> 51 #include <sys/seqc.h> 52 #include <vm/uma.h> 53 54 #include <net/if.h> 55 #include <net/ethernet.h> 56 #include <net/radix.h> 57 #include <netinet/in.h> 58 #ifdef _KERNEL 59 #include <netinet/ip.h> 60 #include <netinet/tcp.h> 61 #include <netinet/udp.h> 62 #include <netinet/sctp.h> 63 #include <netinet/ip_icmp.h> 64 #include <netinet/icmp6.h> 65 #endif 66 67 #include <netpfil/pf/pf.h> 68 #include <netpfil/pf/pf_altq.h> 69 #include <netpfil/pf/pf_mtag.h> 70 71 #ifdef _KERNEL 72 73 #define PF_PFIL_NOREFRAGMENT 0x80000000 74 75 #if defined(__arm__) 76 #define PF_WANT_32_TO_64_COUNTER 77 #endif 78 79 /* 80 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where 81 * counter(9) is very expensive. 82 * 83 * As 32-bit counters are expected to overflow, a periodic job sums them up to 84 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most 85 * current snapshot. 86 */ 87 #ifdef PF_WANT_32_TO_64_COUNTER 88 struct pf_counter_u64_pcpu { 89 u_int32_t current; 90 u_int32_t snapshot; 91 }; 92 93 struct pf_counter_u64 { 94 struct pf_counter_u64_pcpu *pfcu64_pcpu; 95 u_int64_t pfcu64_value; 96 seqc_t pfcu64_seqc; 97 }; 98 99 static inline int 100 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags) 101 { 102 103 pfcu64->pfcu64_value = 0; 104 pfcu64->pfcu64_seqc = 0; 105 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_8, flags | M_ZERO); 106 if (__predict_false(pfcu64->pfcu64_pcpu == NULL)) 107 return (ENOMEM); 108 return (0); 109 } 110 111 static inline void 112 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64) 113 { 114 115 uma_zfree_pcpu(pcpu_zone_8, pfcu64->pfcu64_pcpu); 116 } 117 118 static inline void 119 pf_counter_u64_critical_enter(void) 120 { 121 122 critical_enter(); 123 } 124 125 static inline void 126 pf_counter_u64_critical_exit(void) 127 { 128 129 critical_exit(); 130 } 131 132 static inline void 133 pf_counter_u64_rollup_protected(struct pf_counter_u64 *pfcu64, uint64_t n) 134 { 135 136 MPASS(curthread->td_critnest > 0); 137 pfcu64->pfcu64_value += n; 138 } 139 140 static inline void 141 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n) 142 { 143 struct pf_counter_u64_pcpu *pcpu; 144 u_int32_t val; 145 146 MPASS(curthread->td_critnest > 0); 147 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu); 148 val = atomic_load_int(&pcpu->current); 149 atomic_store_int(&pcpu->current, val + n); 150 } 151 152 static inline void 153 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n) 154 { 155 156 critical_enter(); 157 pf_counter_u64_add_protected(pfcu64, n); 158 critical_exit(); 159 } 160 161 static inline u_int64_t 162 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64) 163 { 164 struct pf_counter_u64_pcpu *pcpu; 165 u_int64_t sum; 166 u_int32_t val; 167 int cpu; 168 169 MPASS(curthread->td_critnest > 0); 170 seqc_write_begin(&pfcu64->pfcu64_seqc); 171 sum = pfcu64->pfcu64_value; 172 CPU_FOREACH(cpu) { 173 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 174 val = atomic_load_int(&pcpu->current); 175 sum += (uint32_t)(val - pcpu->snapshot); 176 pcpu->snapshot = val; 177 } 178 pfcu64->pfcu64_value = sum; 179 seqc_write_end(&pfcu64->pfcu64_seqc); 180 return (sum); 181 } 182 183 static inline u_int64_t 184 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64) 185 { 186 struct pf_counter_u64_pcpu *pcpu; 187 u_int64_t sum; 188 seqc_t seqc; 189 int cpu; 190 191 for (;;) { 192 seqc = seqc_read(&pfcu64->pfcu64_seqc); 193 sum = 0; 194 CPU_FOREACH(cpu) { 195 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 196 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot); 197 } 198 sum += pfcu64->pfcu64_value; 199 if (seqc_consistent(&pfcu64->pfcu64_seqc, seqc)) 200 break; 201 } 202 return (sum); 203 } 204 205 static inline void 206 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64) 207 { 208 struct pf_counter_u64_pcpu *pcpu; 209 int cpu; 210 211 MPASS(curthread->td_critnest > 0); 212 seqc_write_begin(&pfcu64->pfcu64_seqc); 213 CPU_FOREACH(cpu) { 214 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 215 pcpu->snapshot = atomic_load_int(&pcpu->current); 216 } 217 pfcu64->pfcu64_value = 0; 218 seqc_write_end(&pfcu64->pfcu64_seqc); 219 } 220 221 static inline void 222 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64) 223 { 224 225 critical_enter(); 226 pf_counter_u64_zero_protected(pfcu64); 227 critical_exit(); 228 } 229 #else 230 struct pf_counter_u64 { 231 counter_u64_t counter; 232 }; 233 234 static inline int 235 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags) 236 { 237 238 pfcu64->counter = counter_u64_alloc(flags); 239 if (__predict_false(pfcu64->counter == NULL)) 240 return (ENOMEM); 241 return (0); 242 } 243 244 static inline void 245 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64) 246 { 247 248 counter_u64_free(pfcu64->counter); 249 } 250 251 static inline void 252 pf_counter_u64_critical_enter(void) 253 { 254 255 } 256 257 static inline void 258 pf_counter_u64_critical_exit(void) 259 { 260 261 } 262 263 static inline void 264 pf_counter_u64_rollup_protected(struct pf_counter_u64 *pfcu64, uint64_t n) 265 { 266 267 counter_u64_add(pfcu64->counter, n); 268 } 269 270 static inline void 271 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n) 272 { 273 274 counter_u64_add(pfcu64->counter, n); 275 } 276 277 static inline void 278 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n) 279 { 280 281 pf_counter_u64_add_protected(pfcu64, n); 282 } 283 284 static inline u_int64_t 285 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64) 286 { 287 288 return (counter_u64_fetch(pfcu64->counter)); 289 } 290 291 static inline void 292 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64) 293 { 294 295 counter_u64_zero(pfcu64->counter); 296 } 297 298 static inline void 299 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64) 300 { 301 302 pf_counter_u64_zero_protected(pfcu64); 303 } 304 #endif 305 306 #define pf_get_timestamp(prule)({ \ 307 uint32_t _ts = 0; \ 308 uint32_t __ts; \ 309 int cpu; \ 310 CPU_FOREACH(cpu) { \ 311 __ts = *zpcpu_get_cpu(prule->timestamp, cpu); \ 312 if (__ts > _ts) \ 313 _ts = __ts; \ 314 } \ 315 _ts; \ 316 }) 317 318 #define pf_update_timestamp(prule) \ 319 do { \ 320 critical_enter(); \ 321 *zpcpu_get((prule)->timestamp) = time_second; \ 322 critical_exit(); \ 323 } while (0) 324 325 #define pf_timestamp_pcpu_zone (sizeof(time_t) == 4 ? pcpu_zone_4 : pcpu_zone_8) 326 _Static_assert(sizeof(time_t) == 4 || sizeof(time_t) == 8, "unexpected time_t size"); 327 328 SYSCTL_DECL(_net_pf); 329 MALLOC_DECLARE(M_PFHASH); 330 MALLOC_DECLARE(M_PF_RULE_ITEM); 331 332 SDT_PROVIDER_DECLARE(pf); 333 SDT_PROBE_DECLARE(pf, , test, reason_set); 334 335 struct pfi_dynaddr { 336 TAILQ_ENTRY(pfi_dynaddr) entry; 337 struct pf_addr pfid_addr4; 338 struct pf_addr pfid_mask4; 339 struct pf_addr pfid_addr6; 340 struct pf_addr pfid_mask6; 341 struct pfr_ktable *pfid_kt; 342 struct pfi_kkif *pfid_kif; 343 int pfid_net; /* mask or 128 */ 344 int pfid_acnt4; /* address count IPv4 */ 345 int pfid_acnt6; /* address count IPv6 */ 346 sa_family_t pfid_af; /* rule af */ 347 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 348 }; 349 350 #define PF_NAME "pf" 351 352 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 353 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 354 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 355 356 #ifdef INVARIANTS 357 #define PF_STATE_LOCK(s) \ 358 do { \ 359 struct pf_kstate *_s = (s); \ 360 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 361 MPASS(_s->lock == &_ih->lock); \ 362 mtx_lock(_s->lock); \ 363 } while (0) 364 #define PF_STATE_UNLOCK(s) \ 365 do { \ 366 struct pf_kstate *_s = (s); \ 367 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 368 MPASS(_s->lock == &_ih->lock); \ 369 mtx_unlock(_s->lock); \ 370 } while (0) 371 #else 372 #define PF_STATE_LOCK(s) mtx_lock((s)->lock) 373 #define PF_STATE_UNLOCK(s) mtx_unlock((s)->lock) 374 #endif 375 376 #ifdef INVARIANTS 377 #define PF_STATE_LOCK_ASSERT(s) \ 378 do { \ 379 struct pf_kstate *_s = (s); \ 380 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 381 MPASS(_s->lock == &_ih->lock); \ 382 PF_HASHROW_ASSERT(_ih); \ 383 } while (0) 384 #else /* !INVARIANTS */ 385 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 386 #endif /* INVARIANTS */ 387 388 #ifdef INVARIANTS 389 #define PF_SRC_NODE_LOCK(sn) \ 390 do { \ 391 struct pf_ksrc_node *_sn = (sn); \ 392 struct pf_srchash *_sh = &V_pf_srchash[ \ 393 pf_hashsrc(&_sn->addr, _sn->af)]; \ 394 MPASS(_sn->lock == &_sh->lock); \ 395 mtx_lock(_sn->lock); \ 396 } while (0) 397 #define PF_SRC_NODE_UNLOCK(sn) \ 398 do { \ 399 struct pf_ksrc_node *_sn = (sn); \ 400 struct pf_srchash *_sh = &V_pf_srchash[ \ 401 pf_hashsrc(&_sn->addr, _sn->af)]; \ 402 MPASS(_sn->lock == &_sh->lock); \ 403 mtx_unlock(_sn->lock); \ 404 } while (0) 405 #else 406 #define PF_SRC_NODE_LOCK(sn) mtx_lock((sn)->lock) 407 #define PF_SRC_NODE_UNLOCK(sn) mtx_unlock((sn)->lock) 408 #endif 409 410 #ifdef INVARIANTS 411 #define PF_SRC_NODE_LOCK_ASSERT(sn) \ 412 do { \ 413 struct pf_ksrc_node *_sn = (sn); \ 414 struct pf_srchash *_sh = &V_pf_srchash[ \ 415 pf_hashsrc(&_sn->addr, _sn->af)]; \ 416 MPASS(_sn->lock == &_sh->lock); \ 417 PF_HASHROW_ASSERT(_sh); \ 418 } while (0) 419 #else /* !INVARIANTS */ 420 #define PF_SRC_NODE_LOCK_ASSERT(sn) do {} while (0) 421 #endif /* INVARIANTS */ 422 423 extern struct mtx_padalign pf_unlnkdrules_mtx; 424 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 425 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 426 #define PF_UNLNKDRULES_ASSERT() mtx_assert(&pf_unlnkdrules_mtx, MA_OWNED) 427 428 extern struct sx pf_config_lock; 429 #define PF_CONFIG_LOCK() sx_xlock(&pf_config_lock) 430 #define PF_CONFIG_UNLOCK() sx_xunlock(&pf_config_lock) 431 #define PF_CONFIG_ASSERT() sx_assert(&pf_config_lock, SA_XLOCKED) 432 433 VNET_DECLARE(struct rmlock, pf_rules_lock); 434 #define V_pf_rules_lock VNET(pf_rules_lock) 435 436 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 437 #define PF_RULES_RLOCK() rm_rlock(&V_pf_rules_lock, &_pf_rules_tracker) 438 #define PF_RULES_RUNLOCK() rm_runlock(&V_pf_rules_lock, &_pf_rules_tracker) 439 #define PF_RULES_WLOCK() rm_wlock(&V_pf_rules_lock) 440 #define PF_RULES_WUNLOCK() rm_wunlock(&V_pf_rules_lock) 441 #define PF_RULES_WOWNED() rm_wowned(&V_pf_rules_lock) 442 #define PF_RULES_ASSERT() rm_assert(&V_pf_rules_lock, RA_LOCKED) 443 #define PF_RULES_RASSERT() rm_assert(&V_pf_rules_lock, RA_RLOCKED) 444 #define PF_RULES_WASSERT() rm_assert(&V_pf_rules_lock, RA_WLOCKED) 445 446 extern struct mtx_padalign pf_table_stats_lock; 447 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock) 448 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock) 449 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock) 450 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_table_stats_lock, MA_OWNED) 451 452 extern struct sx pf_end_lock; 453 454 #define PF_MODVER 1 455 #define PFLOG_MODVER 1 456 #define PFSYNC_MODVER 1 457 458 #define PFLOG_MINVER 1 459 #define PFLOG_PREFVER PFLOG_MODVER 460 #define PFLOG_MAXVER 1 461 #define PFSYNC_MINVER 1 462 #define PFSYNC_PREFVER PFSYNC_MODVER 463 #define PFSYNC_MAXVER 1 464 465 #ifdef INET 466 #ifndef INET6 467 #define PF_INET_ONLY 468 #endif /* ! INET6 */ 469 #endif /* INET */ 470 471 #ifdef INET6 472 #ifndef INET 473 #define PF_INET6_ONLY 474 #endif /* ! INET */ 475 #endif /* INET6 */ 476 477 #ifdef INET 478 #ifdef INET6 479 #define PF_INET_INET6 480 #endif /* INET6 */ 481 #endif /* INET */ 482 483 #else 484 485 #define PF_INET_INET6 486 487 #endif /* _KERNEL */ 488 489 /* Both IPv4 and IPv6 */ 490 #ifdef PF_INET_INET6 491 492 #define PF_AEQ(a, b, c) \ 493 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 494 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 495 (a)->addr32[2] == (b)->addr32[2] && \ 496 (a)->addr32[1] == (b)->addr32[1] && \ 497 (a)->addr32[0] == (b)->addr32[0])) \ 498 499 #define PF_ANEQ(a, b, c) \ 500 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 501 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 502 (a)->addr32[1] != (b)->addr32[1] || \ 503 (a)->addr32[2] != (b)->addr32[2] || \ 504 (a)->addr32[3] != (b)->addr32[3]))) \ 505 506 #define PF_AZERO(a, c) \ 507 ((c == AF_INET && !(a)->addr32[0]) || \ 508 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 509 !(a)->addr32[2] && !(a)->addr32[3] )) \ 510 511 #define PF_MATCHA(n, a, m, b, f) \ 512 pf_match_addr(n, a, m, b, f) 513 514 #define PF_ACPY(a, b, f) \ 515 pf_addrcpy(a, b, f) 516 517 #define PF_AINC(a, f) \ 518 pf_addr_inc(a, f) 519 520 #define PF_POOLMASK(a, b, c, d, f) \ 521 pf_poolmask(a, b, c, d, f) 522 523 #else 524 525 /* Just IPv6 */ 526 527 #ifdef PF_INET6_ONLY 528 529 #define PF_AEQ(a, b, c) \ 530 ((a)->addr32[3] == (b)->addr32[3] && \ 531 (a)->addr32[2] == (b)->addr32[2] && \ 532 (a)->addr32[1] == (b)->addr32[1] && \ 533 (a)->addr32[0] == (b)->addr32[0]) \ 534 535 #define PF_ANEQ(a, b, c) \ 536 ((a)->addr32[3] != (b)->addr32[3] || \ 537 (a)->addr32[2] != (b)->addr32[2] || \ 538 (a)->addr32[1] != (b)->addr32[1] || \ 539 (a)->addr32[0] != (b)->addr32[0]) \ 540 541 #define PF_AZERO(a, c) \ 542 (!(a)->addr32[0] && \ 543 !(a)->addr32[1] && \ 544 !(a)->addr32[2] && \ 545 !(a)->addr32[3] ) \ 546 547 #define PF_MATCHA(n, a, m, b, f) \ 548 pf_match_addr(n, a, m, b, f) 549 550 #define PF_ACPY(a, b, f) \ 551 pf_addrcpy(a, b, f) 552 553 #define PF_AINC(a, f) \ 554 pf_addr_inc(a, f) 555 556 #define PF_POOLMASK(a, b, c, d, f) \ 557 pf_poolmask(a, b, c, d, f) 558 559 #else 560 561 /* Just IPv4 */ 562 #ifdef PF_INET_ONLY 563 564 #define PF_AEQ(a, b, c) \ 565 ((a)->addr32[0] == (b)->addr32[0]) 566 567 #define PF_ANEQ(a, b, c) \ 568 ((a)->addr32[0] != (b)->addr32[0]) 569 570 #define PF_AZERO(a, c) \ 571 (!(a)->addr32[0]) 572 573 #define PF_MATCHA(n, a, m, b, f) \ 574 pf_match_addr(n, a, m, b, f) 575 576 #define PF_ACPY(a, b, f) \ 577 (a)->v4.s_addr = (b)->v4.s_addr 578 579 #define PF_AINC(a, f) \ 580 do { \ 581 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 582 } while (0) 583 584 #define PF_POOLMASK(a, b, c, d, f) \ 585 do { \ 586 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 587 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 588 } while (0) 589 590 #endif /* PF_INET_ONLY */ 591 #endif /* PF_INET6_ONLY */ 592 #endif /* PF_INET_INET6 */ 593 594 #ifdef _KERNEL 595 #ifdef INET6 596 static void inline 597 pf_addrcpy(struct pf_addr *dst, const struct pf_addr *src, sa_family_t af) 598 { 599 switch (af) { 600 #ifdef INET 601 case AF_INET: 602 memcpy(&dst->v4, &src->v4, sizeof(dst->v4)); 603 break; 604 #endif /* INET */ 605 case AF_INET6: 606 memcpy(&dst->v6, &src->v6, sizeof(dst->v6)); 607 break; 608 } 609 } 610 #endif /* INET6 */ 611 #endif 612 613 /* 614 * XXX callers not FIB-aware in our version of pf yet. 615 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 616 */ 617 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 618 ( \ 619 (((aw)->type == PF_ADDR_NOROUTE && \ 620 pf_routable((x), (af), NULL, (rtid))) || \ 621 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 622 pf_routable((x), (af), (ifp), (rtid))) || \ 623 ((aw)->type == PF_ADDR_TABLE && \ 624 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 625 ((aw)->type == PF_ADDR_DYNIFTL && \ 626 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 627 ((aw)->type == PF_ADDR_RANGE && \ 628 !pf_match_addr_range(&(aw)->v.a.addr, \ 629 &(aw)->v.a.mask, (x), (af))) || \ 630 ((aw)->type == PF_ADDR_ADDRMASK && \ 631 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 632 !PF_MATCHA(0, &(aw)->v.a.addr, \ 633 &(aw)->v.a.mask, (x), (af))))) != \ 634 (neg) \ 635 ) 636 637 #define PF_ALGNMNT(off) (((off) % 2) == 0) 638 639 /* 640 * At the moment there are no rules which have both NAT and RDR actions, 641 * apart from af-to rules, but those don't to source tracking for address 642 * translation. And the r->rdr pool is used for both NAT and RDR. 643 * So there is no PF_SN_RDR. 644 */ 645 enum pf_sn_types { PF_SN_LIMIT, PF_SN_NAT, PF_SN_ROUTE, PF_SN_MAX }; 646 typedef enum pf_sn_types pf_sn_types_t; 647 #define PF_SN_TYPE_NAMES { \ 648 "limit source-track", \ 649 "NAT/RDR sticky-address", \ 650 "route sticky-address", \ 651 NULL \ 652 } 653 654 #ifdef _KERNEL 655 656 struct pf_kpooladdr { 657 struct pf_addr_wrap addr; 658 TAILQ_ENTRY(pf_kpooladdr) entries; 659 char ifname[IFNAMSIZ]; 660 struct pfi_kkif *kif; 661 }; 662 663 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 664 665 struct pf_kpool { 666 struct mtx mtx; 667 struct pf_kpalist list; 668 struct pf_kpooladdr *cur; 669 struct pf_poolhashkey key; 670 struct pf_addr counter; 671 struct pf_mape_portset mape; 672 int tblidx; 673 u_int16_t proxy_port[2]; 674 u_int8_t opts; 675 }; 676 677 struct pf_rule_actions { 678 struct pf_addr rt_addr; 679 struct pfi_kkif *rt_kif; 680 int32_t rtableid; 681 uint32_t flags; 682 uint16_t qid; 683 uint16_t pqid; 684 uint16_t max_mss; 685 uint16_t dnpipe; 686 uint16_t dnrpipe; /* Reverse direction pipe */ 687 uint8_t log; 688 uint8_t set_tos; 689 uint8_t min_ttl; 690 uint8_t set_prio[2]; 691 uint8_t rt; 692 uint8_t allow_opts; 693 }; 694 695 union pf_keth_rule_ptr { 696 struct pf_keth_rule *ptr; 697 uint32_t nr; 698 }; 699 700 struct pf_keth_rule_addr { 701 uint8_t addr[ETHER_ADDR_LEN]; 702 uint8_t mask[ETHER_ADDR_LEN]; 703 bool neg; 704 uint8_t isset; 705 }; 706 707 struct pf_keth_anchor; 708 709 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule); 710 711 struct pf_keth_ruleset { 712 struct pf_keth_ruleq rules[2]; 713 struct pf_keth_rules { 714 struct pf_keth_ruleq *rules; 715 int open; 716 uint32_t ticket; 717 } active, inactive; 718 struct vnet *vnet; 719 struct pf_keth_anchor *anchor; 720 }; 721 722 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor); 723 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor); 724 struct pf_keth_anchor { 725 RB_ENTRY(pf_keth_anchor) entry_node; 726 RB_ENTRY(pf_keth_anchor) entry_global; 727 struct pf_keth_anchor *parent; 728 struct pf_keth_anchor_node children; 729 char name[PF_ANCHOR_NAME_SIZE]; 730 char path[MAXPATHLEN]; 731 struct pf_keth_ruleset ruleset; 732 int refcnt; /* anchor rules */ 733 uint8_t anchor_relative; 734 uint8_t anchor_wildcard; 735 }; 736 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node, 737 pf_keth_anchor_compare); 738 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global, 739 pf_keth_anchor_compare); 740 741 struct pf_keth_rule { 742 #define PFE_SKIP_IFP 0 743 #define PFE_SKIP_DIR 1 744 #define PFE_SKIP_PROTO 2 745 #define PFE_SKIP_SRC_ADDR 3 746 #define PFE_SKIP_DST_ADDR 4 747 #define PFE_SKIP_SRC_IP_ADDR 5 748 #define PFE_SKIP_DST_IP_ADDR 6 749 #define PFE_SKIP_COUNT 7 750 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT]; 751 752 TAILQ_ENTRY(pf_keth_rule) entries; 753 754 struct pf_keth_anchor *anchor; 755 u_int8_t anchor_relative; 756 u_int8_t anchor_wildcard; 757 758 uint32_t nr; 759 760 bool quick; 761 762 /* Filter */ 763 char ifname[IFNAMSIZ]; 764 struct pfi_kkif *kif; 765 bool ifnot; 766 uint8_t direction; 767 uint16_t proto; 768 struct pf_keth_rule_addr src, dst; 769 struct pf_rule_addr ipsrc, ipdst; 770 char match_tagname[PF_TAG_NAME_SIZE]; 771 uint16_t match_tag; 772 bool match_tag_not; 773 774 775 /* Stats */ 776 counter_u64_t evaluations; 777 counter_u64_t packets[2]; 778 counter_u64_t bytes[2]; 779 time_t *timestamp; 780 781 /* Action */ 782 char qname[PF_QNAME_SIZE]; 783 int qid; 784 char tagname[PF_TAG_NAME_SIZE]; 785 uint16_t tag; 786 char bridge_to_name[IFNAMSIZ]; 787 struct pfi_kkif *bridge_to; 788 uint8_t action; 789 uint16_t dnpipe; 790 uint32_t dnflags; 791 792 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 793 uint32_t ridentifier; 794 }; 795 796 RB_HEAD(pf_krule_global, pf_krule); 797 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare); 798 799 struct pf_krule { 800 struct pf_rule_addr src; 801 struct pf_rule_addr dst; 802 struct pf_krule *skip[PF_SKIP_COUNT]; 803 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 804 uint32_t ridentifier; 805 char ifname[IFNAMSIZ]; 806 char rcv_ifname[IFNAMSIZ]; 807 char qname[PF_QNAME_SIZE]; 808 char pqname[PF_QNAME_SIZE]; 809 char tagname[PF_TAG_NAME_SIZE]; 810 char match_tagname[PF_TAG_NAME_SIZE]; 811 812 char overload_tblname[PF_TABLE_NAME_SIZE]; 813 814 TAILQ_ENTRY(pf_krule) entries; 815 struct pf_kpool nat; 816 struct pf_kpool rdr; 817 struct pf_kpool route; 818 819 struct pf_counter_u64 evaluations; 820 struct pf_counter_u64 packets[2]; 821 struct pf_counter_u64 bytes[2]; 822 time_t *timestamp; 823 824 struct pfi_kkif *kif; 825 struct pfi_kkif *rcv_kif; 826 struct pf_kanchor *anchor; 827 struct pfr_ktable *overload_tbl; 828 829 pf_osfp_t os_fingerprint; 830 831 int32_t rtableid; 832 u_int32_t timeout[PFTM_MAX]; 833 u_int32_t max_states; 834 u_int32_t max_src_nodes; 835 u_int32_t max_src_states; 836 u_int32_t max_src_conn; 837 struct { 838 u_int32_t limit; 839 u_int32_t seconds; 840 } max_src_conn_rate; 841 u_int16_t qid; 842 u_int16_t pqid; 843 u_int16_t dnpipe; 844 u_int16_t dnrpipe; 845 u_int32_t free_flags; 846 u_int32_t nr; 847 u_int32_t prob; 848 uid_t cuid; 849 pid_t cpid; 850 851 counter_u64_t states_cur; 852 counter_u64_t states_tot; 853 counter_u64_t src_nodes[PF_SN_MAX]; 854 855 u_int16_t return_icmp; 856 u_int16_t return_icmp6; 857 u_int16_t max_mss; 858 u_int16_t tag; 859 u_int16_t match_tag; 860 u_int16_t scrub_flags; 861 862 struct pf_rule_uid uid; 863 struct pf_rule_gid gid; 864 865 u_int32_t rule_flag; 866 uint32_t rule_ref; 867 u_int8_t action; 868 u_int8_t direction; 869 u_int8_t log; 870 u_int8_t logif; 871 u_int8_t quick; 872 u_int8_t ifnot; 873 u_int8_t match_tag_not; 874 u_int8_t natpass; 875 876 u_int8_t keep_state; 877 sa_family_t af; 878 u_int8_t proto; 879 u_int8_t type; 880 u_int8_t code; 881 u_int8_t flags; 882 u_int8_t flagset; 883 u_int8_t min_ttl; 884 u_int8_t allow_opts; 885 u_int8_t rt; 886 u_int8_t return_ttl; 887 u_int8_t tos; 888 u_int8_t set_tos; 889 u_int8_t anchor_relative; 890 u_int8_t anchor_wildcard; 891 892 u_int8_t flush; 893 u_int8_t prio; 894 u_int8_t set_prio[2]; 895 sa_family_t naf; 896 u_int8_t rcvifnot; 897 898 struct { 899 struct pf_addr addr; 900 u_int16_t port; 901 } divert; 902 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH]; 903 RB_ENTRY(pf_krule) entry_global; 904 905 #ifdef PF_WANT_32_TO_64_COUNTER 906 LIST_ENTRY(pf_krule) allrulelist; 907 bool allrulelinked; 908 #endif 909 }; 910 911 struct pf_krule_item { 912 SLIST_ENTRY(pf_krule_item) entry; 913 struct pf_krule *r; 914 }; 915 916 SLIST_HEAD(pf_krule_slist, pf_krule_item); 917 918 struct pf_ksrc_node { 919 LIST_ENTRY(pf_ksrc_node) entry; 920 struct pf_addr addr; 921 struct pf_addr raddr; 922 struct pf_krule_slist match_rules; 923 struct pf_krule *rule; 924 struct pfi_kkif *rkif; 925 counter_u64_t bytes[2]; 926 counter_u64_t packets[2]; 927 u_int32_t states; 928 u_int32_t conn; 929 struct pf_threshold conn_rate; 930 u_int32_t creation; 931 u_int32_t expire; 932 sa_family_t af; 933 sa_family_t naf; 934 u_int8_t ruletype; 935 pf_sn_types_t type; 936 struct mtx *lock; 937 }; 938 #endif 939 940 struct pf_state_scrub { 941 struct timeval pfss_last; /* time received last packet */ 942 u_int32_t pfss_tsecr; /* last echoed timestamp */ 943 u_int32_t pfss_tsval; /* largest timestamp */ 944 u_int32_t pfss_tsval0; /* original timestamp */ 945 u_int16_t pfss_flags; 946 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 947 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 948 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 949 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 950 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 951 u_int8_t pfss_ttl; /* stashed TTL */ 952 u_int8_t pad; 953 union { 954 u_int32_t pfss_ts_mod; /* timestamp modulation */ 955 u_int32_t pfss_v_tag; /* SCTP verification tag */ 956 }; 957 }; 958 959 struct pf_state_host { 960 struct pf_addr addr; 961 u_int16_t port; 962 u_int16_t pad; 963 }; 964 965 struct pf_state_peer { 966 struct pf_state_scrub *scrub; /* state is scrubbed */ 967 u_int32_t seqlo; /* Max sequence number sent */ 968 u_int32_t seqhi; /* Max the other end ACKd + win */ 969 u_int32_t seqdiff; /* Sequence number modulator */ 970 u_int16_t max_win; /* largest window (pre scaling) */ 971 u_int16_t mss; /* Maximum segment size option */ 972 u_int8_t state; /* active state level */ 973 u_int8_t wscale; /* window scaling factor */ 974 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 975 u_int8_t pad[1]; 976 }; 977 978 /* Keep synced with struct pf_udp_endpoint. */ 979 struct pf_udp_endpoint_cmp { 980 struct pf_addr addr; 981 uint16_t port; 982 sa_family_t af; 983 uint8_t pad[1]; 984 }; 985 986 struct pf_udp_endpoint { 987 struct pf_addr addr; 988 uint16_t port; 989 sa_family_t af; 990 uint8_t pad[1]; 991 992 struct pf_udp_mapping *mapping; 993 LIST_ENTRY(pf_udp_endpoint) entry; 994 }; 995 996 struct pf_udp_mapping { 997 struct pf_udp_endpoint endpoints[2]; 998 u_int refs; 999 }; 1000 1001 /* Keep synced with struct pf_state_key. */ 1002 struct pf_state_key_cmp { 1003 struct pf_addr addr[2]; 1004 u_int16_t port[2]; 1005 sa_family_t af; 1006 u_int8_t proto; 1007 u_int8_t pad[2]; 1008 }; 1009 1010 struct pf_state_key { 1011 struct pf_addr addr[2]; 1012 u_int16_t port[2]; 1013 sa_family_t af; 1014 u_int8_t proto; 1015 u_int8_t pad[2]; 1016 1017 LIST_ENTRY(pf_state_key) entry; 1018 TAILQ_HEAD(, pf_kstate) states[2]; 1019 }; 1020 1021 #define PF_REVERSED_KEY(state, family) \ 1022 (((state)->key[PF_SK_WIRE]->af != (state)->key[PF_SK_STACK]->af) && \ 1023 ((state)->key[PF_SK_WIRE]->af != (family)) && \ 1024 ((state)->direction == PF_IN)) 1025 1026 /* Keep synced with struct pf_kstate. */ 1027 struct pf_state_cmp { 1028 u_int64_t id; 1029 u_int32_t creatorid; 1030 u_int8_t direction; 1031 u_int8_t pad[3]; 1032 }; 1033 1034 struct pf_state_scrub_export { 1035 uint16_t pfss_flags; 1036 uint8_t pfss_ttl; /* stashed TTL */ 1037 #define PF_SCRUB_FLAG_VALID 0x01 1038 uint8_t scrub_flag; 1039 uint32_t pfss_ts_mod; /* timestamp modulation */ 1040 }; 1041 1042 struct pf_state_key_export { 1043 struct pf_addr addr[2]; 1044 uint16_t port[2]; 1045 }; 1046 1047 struct pf_state_peer_export { 1048 struct pf_state_scrub_export scrub; /* state is scrubbed */ 1049 uint32_t seqlo; /* Max sequence number sent */ 1050 uint32_t seqhi; /* Max the other end ACKd + win */ 1051 uint32_t seqdiff; /* Sequence number modulator */ 1052 uint16_t max_win; /* largest window (pre scaling) */ 1053 uint16_t mss; /* Maximum segment size option */ 1054 uint8_t state; /* active state level */ 1055 uint8_t wscale; /* window scaling factor */ 1056 uint8_t dummy[6]; 1057 }; 1058 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect"); 1059 1060 struct pf_state_export { 1061 uint64_t version; 1062 #define PF_STATE_VERSION 20230404 1063 uint64_t id; 1064 char ifname[IFNAMSIZ]; 1065 char orig_ifname[IFNAMSIZ]; 1066 struct pf_state_key_export key[2]; 1067 struct pf_state_peer_export src; 1068 struct pf_state_peer_export dst; 1069 struct pf_addr rt_addr; 1070 uint32_t rule; 1071 uint32_t anchor; 1072 uint32_t nat_rule; 1073 uint32_t creation; 1074 uint32_t expire; 1075 uint32_t spare0; 1076 uint64_t packets[2]; 1077 uint64_t bytes[2]; 1078 uint32_t creatorid; 1079 uint32_t spare1; 1080 sa_family_t af; 1081 uint8_t proto; 1082 uint8_t direction; 1083 uint8_t log; 1084 uint8_t state_flags_compat; 1085 uint8_t timeout; 1086 uint8_t sync_flags; 1087 uint8_t updates; 1088 uint16_t state_flags; 1089 uint16_t qid; 1090 uint16_t pqid; 1091 uint16_t dnpipe; 1092 uint16_t dnrpipe; 1093 int32_t rtableid; 1094 uint8_t min_ttl; 1095 uint8_t set_tos; 1096 uint16_t max_mss; 1097 uint8_t set_prio[2]; 1098 uint8_t rt; 1099 char rt_ifname[IFNAMSIZ]; 1100 1101 uint8_t spare[72]; 1102 }; 1103 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect"); 1104 1105 #ifdef _KERNEL 1106 struct pf_kstate { 1107 /* 1108 * Area shared with pf_state_cmp 1109 */ 1110 u_int64_t id; 1111 u_int32_t creatorid; 1112 u_int8_t direction; 1113 u_int8_t pad[3]; 1114 /* 1115 * end of the area 1116 */ 1117 1118 u_int16_t state_flags; 1119 u_int8_t timeout; 1120 u_int8_t sync_state; /* PFSYNC_S_x */ 1121 u_int8_t sync_updates; 1122 u_int refs; 1123 struct mtx *lock; 1124 TAILQ_ENTRY(pf_kstate) sync_list; 1125 TAILQ_ENTRY(pf_kstate) key_list[2]; 1126 LIST_ENTRY(pf_kstate) entry; 1127 struct pf_state_peer src; 1128 struct pf_state_peer dst; 1129 struct pf_krule_slist match_rules; 1130 struct pf_krule *rule; 1131 struct pf_krule *anchor; 1132 struct pf_krule *nat_rule; 1133 struct pf_state_key *key[2]; /* addresses stack and wire */ 1134 struct pf_udp_mapping *udp_mapping; 1135 struct pfi_kkif *kif; 1136 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 1137 struct pf_ksrc_node *sns[PF_SN_MAX];/* source nodes */ 1138 u_int64_t packets[2]; 1139 u_int64_t bytes[2]; 1140 u_int64_t creation; 1141 u_int64_t expire; 1142 u_int32_t pfsync_time; 1143 struct pf_rule_actions act; 1144 u_int16_t tag; 1145 u_int16_t if_index_in; 1146 u_int16_t if_index_out; 1147 }; 1148 1149 /* 1150 * 6 cache lines per struct, 10 structs per page. 1151 * Try to not grow the struct beyond that. 1152 */ 1153 _Static_assert(sizeof(struct pf_kstate) <= 384, "pf_kstate size crosses 384 bytes"); 1154 #endif 1155 1156 /* 1157 * Unified state structures for pulling states out of the kernel 1158 * used by pfsync(4) and the pf(4) ioctl. 1159 */ 1160 struct pfsync_state_scrub { 1161 u_int16_t pfss_flags; 1162 u_int8_t pfss_ttl; /* stashed TTL */ 1163 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1164 u_int8_t scrub_flag; 1165 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1166 } __packed; 1167 1168 struct pfsync_state_peer { 1169 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1170 u_int32_t seqlo; /* Max sequence number sent */ 1171 u_int32_t seqhi; /* Max the other end ACKd + win */ 1172 u_int32_t seqdiff; /* Sequence number modulator */ 1173 u_int16_t max_win; /* largest window (pre scaling) */ 1174 u_int16_t mss; /* Maximum segment size option */ 1175 u_int8_t state; /* active state level */ 1176 u_int8_t wscale; /* window scaling factor */ 1177 u_int8_t pad[6]; 1178 } __packed; 1179 1180 struct pfsync_state_key { 1181 struct pf_addr addr[2]; 1182 u_int16_t port[2]; 1183 }; 1184 1185 struct pfsync_state_1301 { 1186 u_int64_t id; 1187 char ifname[IFNAMSIZ]; 1188 struct pfsync_state_key key[2]; 1189 struct pfsync_state_peer src; 1190 struct pfsync_state_peer dst; 1191 struct pf_addr rt_addr; 1192 u_int32_t rule; 1193 u_int32_t anchor; 1194 u_int32_t nat_rule; 1195 u_int32_t creation; 1196 u_int32_t expire; 1197 u_int32_t packets[2][2]; 1198 u_int32_t bytes[2][2]; 1199 u_int32_t creatorid; 1200 sa_family_t af; 1201 u_int8_t proto; 1202 u_int8_t direction; 1203 u_int8_t __spare[2]; 1204 u_int8_t log; 1205 u_int8_t state_flags; 1206 u_int8_t timeout; 1207 u_int8_t sync_flags; 1208 u_int8_t updates; 1209 } __packed; 1210 1211 struct pfsync_state_1400 { 1212 /* The beginning of the struct is compatible with previous versions */ 1213 u_int64_t id; 1214 char ifname[IFNAMSIZ]; 1215 struct pfsync_state_key key[2]; 1216 struct pfsync_state_peer src; 1217 struct pfsync_state_peer dst; 1218 struct pf_addr rt_addr; 1219 u_int32_t rule; 1220 u_int32_t anchor; 1221 u_int32_t nat_rule; 1222 u_int32_t creation; 1223 u_int32_t expire; 1224 u_int32_t packets[2][2]; 1225 u_int32_t bytes[2][2]; 1226 u_int32_t creatorid; 1227 sa_family_t af; 1228 u_int8_t proto; 1229 u_int8_t direction; 1230 u_int16_t state_flags; 1231 u_int8_t log; 1232 u_int8_t __spare; 1233 u_int8_t timeout; 1234 u_int8_t sync_flags; 1235 u_int8_t updates; 1236 /* The rest is not */ 1237 u_int16_t qid; 1238 u_int16_t pqid; 1239 u_int16_t dnpipe; 1240 u_int16_t dnrpipe; 1241 int32_t rtableid; 1242 u_int8_t min_ttl; 1243 u_int8_t set_tos; 1244 u_int16_t max_mss; 1245 u_int8_t set_prio[2]; 1246 u_int8_t rt; 1247 char rt_ifname[IFNAMSIZ]; 1248 1249 } __packed; 1250 1251 union pfsync_state_union { 1252 struct pfsync_state_1301 pfs_1301; 1253 struct pfsync_state_1400 pfs_1400; 1254 } __packed; 1255 1256 #ifdef _KERNEL 1257 /* pfsync */ 1258 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int); 1259 typedef void pfsync_insert_state_t(struct pf_kstate *); 1260 typedef void pfsync_update_state_t(struct pf_kstate *); 1261 typedef void pfsync_delete_state_t(struct pf_kstate *); 1262 typedef void pfsync_clear_states_t(u_int32_t, const char *); 1263 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 1264 typedef void pfsync_detach_ifnet_t(struct ifnet *); 1265 typedef void pflow_export_state_t(const struct pf_kstate *); 1266 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *); 1267 1268 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 1269 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 1270 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 1271 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 1272 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 1273 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 1274 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 1275 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 1276 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 1277 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 1278 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 1279 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 1280 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr); 1281 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr) 1282 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 1283 1284 void pfsync_state_export(union pfsync_state_union *, 1285 struct pf_kstate *, int); 1286 void pf_state_export(struct pf_state_export *, 1287 struct pf_kstate *); 1288 1289 /* pflog */ 1290 struct pf_kruleset; 1291 struct pf_pdesc; 1292 typedef int pflog_packet_t(uint8_t, u_int8_t, 1293 struct pf_krule *, struct pf_krule *, struct pf_kruleset *, 1294 struct pf_pdesc *, int, struct pf_krule *); 1295 extern pflog_packet_t *pflog_packet_ptr; 1296 1297 #endif /* _KERNEL */ 1298 1299 #define PFSYNC_FLAG_SRCNODE 0x04 1300 #define PFSYNC_FLAG_NATSRCNODE 0x08 1301 1302 /* for copies to/from network byte order */ 1303 /* ioctl interface also uses network byte order */ 1304 #define pf_state_peer_hton(s,d) do { \ 1305 (d)->seqlo = htonl((s)->seqlo); \ 1306 (d)->seqhi = htonl((s)->seqhi); \ 1307 (d)->seqdiff = htonl((s)->seqdiff); \ 1308 (d)->max_win = htons((s)->max_win); \ 1309 (d)->mss = htons((s)->mss); \ 1310 (d)->state = (s)->state; \ 1311 (d)->wscale = (s)->wscale; \ 1312 if ((s)->scrub) { \ 1313 (d)->scrub.pfss_flags = \ 1314 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 1315 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1316 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 1317 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1318 } \ 1319 } while (0) 1320 1321 #define pf_state_peer_ntoh(s,d) do { \ 1322 (d)->seqlo = ntohl((s)->seqlo); \ 1323 (d)->seqhi = ntohl((s)->seqhi); \ 1324 (d)->seqdiff = ntohl((s)->seqdiff); \ 1325 (d)->max_win = ntohs((s)->max_win); \ 1326 (d)->mss = ntohs((s)->mss); \ 1327 (d)->state = (s)->state; \ 1328 (d)->wscale = (s)->wscale; \ 1329 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1330 (d)->scrub != NULL) { \ 1331 (d)->scrub->pfss_flags = \ 1332 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1333 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1334 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1335 } \ 1336 } while (0) 1337 1338 #define pf_state_counter_hton(s,d) do { \ 1339 d[0] = htonl((s>>32)&0xffffffff); \ 1340 d[1] = htonl(s&0xffffffff); \ 1341 } while (0) 1342 1343 #define pf_state_counter_from_pfsync(s) \ 1344 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1345 1346 #define pf_state_counter_ntoh(s,d) do { \ 1347 d = ntohl(s[0]); \ 1348 d = d<<32; \ 1349 d += ntohl(s[1]); \ 1350 } while (0) 1351 1352 TAILQ_HEAD(pf_krulequeue, pf_krule); 1353 1354 struct pf_kanchor; 1355 1356 struct pf_kruleset { 1357 struct { 1358 struct pf_krulequeue queues[2]; 1359 struct { 1360 struct pf_krulequeue *ptr; 1361 struct pf_krule **ptr_array; 1362 u_int32_t rcount; 1363 u_int32_t ticket; 1364 int open; 1365 struct pf_krule_global *tree; 1366 } active, inactive; 1367 } rules[PF_RULESET_MAX]; 1368 struct pf_kanchor *anchor; 1369 u_int32_t tticket; 1370 int tables; 1371 int topen; 1372 }; 1373 1374 RB_HEAD(pf_kanchor_global, pf_kanchor); 1375 RB_HEAD(pf_kanchor_node, pf_kanchor); 1376 struct pf_kanchor { 1377 RB_ENTRY(pf_kanchor) entry_global; 1378 RB_ENTRY(pf_kanchor) entry_node; 1379 struct pf_kanchor *parent; 1380 struct pf_kanchor_node children; 1381 char name[PF_ANCHOR_NAME_SIZE]; 1382 char path[MAXPATHLEN]; 1383 struct pf_kruleset ruleset; 1384 int refcnt; /* anchor rules */ 1385 }; 1386 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1387 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1388 1389 #define PF_RESERVED_ANCHOR "_pf" 1390 1391 #define PFR_TFLAG_PERSIST 0x00000001 1392 #define PFR_TFLAG_CONST 0x00000002 1393 #define PFR_TFLAG_ACTIVE 0x00000004 1394 #define PFR_TFLAG_INACTIVE 0x00000008 1395 #define PFR_TFLAG_REFERENCED 0x00000010 1396 #define PFR_TFLAG_REFDANCHOR 0x00000020 1397 #define PFR_TFLAG_COUNTERS 0x00000040 1398 /* Adjust masks below when adding flags. */ 1399 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1400 PFR_TFLAG_CONST | \ 1401 PFR_TFLAG_COUNTERS) 1402 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1403 PFR_TFLAG_INACTIVE | \ 1404 PFR_TFLAG_REFERENCED | \ 1405 PFR_TFLAG_REFDANCHOR) 1406 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1407 PFR_TFLAG_CONST | \ 1408 PFR_TFLAG_ACTIVE | \ 1409 PFR_TFLAG_INACTIVE | \ 1410 PFR_TFLAG_REFERENCED | \ 1411 PFR_TFLAG_REFDANCHOR | \ 1412 PFR_TFLAG_COUNTERS) 1413 1414 struct pf_kanchor_stackframe; 1415 struct pf_keth_anchor_stackframe; 1416 1417 struct pfr_table { 1418 char pfrt_anchor[MAXPATHLEN]; 1419 char pfrt_name[PF_TABLE_NAME_SIZE]; 1420 u_int32_t pfrt_flags; 1421 u_int8_t pfrt_fback; 1422 }; 1423 1424 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1425 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1426 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1427 1428 struct pfr_addr { 1429 union { 1430 struct in_addr _pfra_ip4addr; 1431 struct in6_addr _pfra_ip6addr; 1432 } pfra_u; 1433 u_int8_t pfra_af; 1434 u_int8_t pfra_net; 1435 u_int8_t pfra_not; 1436 u_int8_t pfra_fback; 1437 }; 1438 #define pfra_ip4addr pfra_u._pfra_ip4addr 1439 #define pfra_ip6addr pfra_u._pfra_ip6addr 1440 1441 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1442 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1443 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1444 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1445 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1446 1447 struct pfr_astats { 1448 struct pfr_addr pfras_a; 1449 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1450 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1451 time_t pfras_tzero; 1452 }; 1453 1454 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1455 1456 struct pfr_tstats { 1457 struct pfr_table pfrts_t; 1458 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1459 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1460 u_int64_t pfrts_match; 1461 u_int64_t pfrts_nomatch; 1462 time_t pfrts_tzero; 1463 int pfrts_cnt; 1464 int pfrts_refcnt[PFR_REFCNT_MAX]; 1465 }; 1466 1467 #ifdef _KERNEL 1468 1469 struct pfr_kstate_counter { 1470 counter_u64_t pkc_pcpu; 1471 u_int64_t pkc_zero; 1472 }; 1473 1474 static inline int 1475 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1476 { 1477 1478 pfrc->pkc_zero = 0; 1479 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1480 if (pfrc->pkc_pcpu == NULL) 1481 return (ENOMEM); 1482 return (0); 1483 } 1484 1485 static inline void 1486 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1487 { 1488 1489 counter_u64_free(pfrc->pkc_pcpu); 1490 } 1491 1492 static inline u_int64_t 1493 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1494 { 1495 u_int64_t c; 1496 1497 c = counter_u64_fetch(pfrc->pkc_pcpu); 1498 c -= pfrc->pkc_zero; 1499 return (c); 1500 } 1501 1502 static inline void 1503 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1504 { 1505 u_int64_t c; 1506 1507 c = counter_u64_fetch(pfrc->pkc_pcpu); 1508 pfrc->pkc_zero = c; 1509 } 1510 1511 static inline void 1512 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1513 { 1514 1515 counter_u64_add(pfrc->pkc_pcpu, n); 1516 } 1517 1518 struct pfr_ktstats { 1519 struct pfr_table pfrts_t; 1520 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1521 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1522 struct pfr_kstate_counter pfrkts_match; 1523 struct pfr_kstate_counter pfrkts_nomatch; 1524 time_t pfrkts_tzero; 1525 int pfrkts_cnt; 1526 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1527 }; 1528 1529 #endif /* _KERNEL */ 1530 1531 #define pfrts_name pfrts_t.pfrt_name 1532 #define pfrts_flags pfrts_t.pfrt_flags 1533 1534 #ifndef _SOCKADDR_UNION_DEFINED 1535 #define _SOCKADDR_UNION_DEFINED 1536 union sockaddr_union { 1537 struct sockaddr sa; 1538 struct sockaddr_in sin; 1539 struct sockaddr_in6 sin6; 1540 }; 1541 #endif /* _SOCKADDR_UNION_DEFINED */ 1542 1543 struct pfr_kcounters { 1544 counter_u64_t pfrkc_counters; 1545 time_t pfrkc_tzero; 1546 }; 1547 #define pfr_kentry_counter(kc, dir, op, t) \ 1548 ((kc)->pfrkc_counters + \ 1549 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1550 1551 #ifdef _KERNEL 1552 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1553 struct pfr_kentry { 1554 struct radix_node pfrke_node[2]; 1555 union sockaddr_union pfrke_sa; 1556 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1557 struct pfr_kcounters pfrke_counters; 1558 u_int8_t pfrke_af; 1559 u_int8_t pfrke_net; 1560 u_int8_t pfrke_not; 1561 u_int8_t pfrke_mark; 1562 }; 1563 1564 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1565 RB_HEAD(pfr_ktablehead, pfr_ktable); 1566 struct pfr_ktable { 1567 struct pfr_ktstats pfrkt_kts; 1568 RB_ENTRY(pfr_ktable) pfrkt_tree; 1569 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1570 struct radix_node_head *pfrkt_ip4; 1571 struct radix_node_head *pfrkt_ip6; 1572 struct pfr_ktable *pfrkt_shadow; 1573 struct pfr_ktable *pfrkt_root; 1574 struct pf_kruleset *pfrkt_rs; 1575 long pfrkt_larg; 1576 int pfrkt_nflags; 1577 }; 1578 #define pfrkt_t pfrkt_kts.pfrts_t 1579 #define pfrkt_name pfrkt_t.pfrt_name 1580 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1581 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1582 #define pfrkt_flags pfrkt_t.pfrt_flags 1583 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1584 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1585 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1586 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1587 #define pfrkt_match pfrkt_kts.pfrkts_match 1588 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1589 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1590 #endif 1591 1592 #ifdef _KERNEL 1593 struct pfi_kkif { 1594 char pfik_name[IFNAMSIZ]; 1595 union { 1596 RB_ENTRY(pfi_kkif) _pfik_tree; 1597 LIST_ENTRY(pfi_kkif) _pfik_list; 1598 } _pfik_glue; 1599 #define pfik_tree _pfik_glue._pfik_tree 1600 #define pfik_list _pfik_glue._pfik_list 1601 struct pf_counter_u64 pfik_packets[2][2][2]; 1602 struct pf_counter_u64 pfik_bytes[2][2][2]; 1603 time_t pfik_tzero; 1604 u_int pfik_flags; 1605 struct ifnet *pfik_ifp; 1606 struct ifg_group *pfik_group; 1607 u_int pfik_rulerefs; 1608 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1609 #ifdef PF_WANT_32_TO_64_COUNTER 1610 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1611 #endif 1612 }; 1613 #endif 1614 1615 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1616 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1617 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */ 1618 1619 #ifdef _KERNEL 1620 struct pf_sctp_multihome_job; 1621 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job); 1622 1623 struct pf_pdesc { 1624 struct { 1625 int done; 1626 uid_t uid; 1627 gid_t gid; 1628 } lookup; 1629 u_int64_t tot_len; /* Make Mickey money */ 1630 union pf_headers { 1631 struct tcphdr tcp; 1632 struct udphdr udp; 1633 struct sctphdr sctp; 1634 struct icmp icmp; 1635 #ifdef INET6 1636 struct icmp6_hdr icmp6; 1637 #endif /* INET6 */ 1638 char any[0]; 1639 } hdr; 1640 1641 struct pf_addr nsaddr; /* src address after NAT */ 1642 struct pf_addr ndaddr; /* dst address after NAT */ 1643 1644 struct pfi_kkif *kif; /* incomming interface */ 1645 struct mbuf *m; 1646 1647 struct pf_addr *src; /* src address */ 1648 struct pf_addr *dst; /* dst address */ 1649 struct pf_addr osrc; 1650 struct pf_addr odst; 1651 u_int16_t *pcksum; /* proto cksum */ 1652 u_int16_t *sport; 1653 u_int16_t *dport; 1654 u_int16_t osport; 1655 u_int16_t odport; 1656 u_int16_t nsport; /* src port after NAT */ 1657 u_int16_t ndport; /* dst port after NAT */ 1658 struct pf_mtag *pf_mtag; 1659 struct pf_rule_actions act; 1660 1661 u_int32_t off; /* protocol header offset */ 1662 bool df; /* IPv4 Don't fragment flag. */ 1663 u_int32_t hdrlen; /* protocol header length */ 1664 u_int32_t p_len; /* total length of protocol payload */ 1665 u_int32_t extoff; /* extentsion header offset */ 1666 u_int32_t fragoff; /* fragment header offset */ 1667 u_int32_t jumbolen; /* length from v6 jumbo header */ 1668 u_int32_t badopts; /* v4 options or v6 routing headers */ 1669 1670 u_int16_t *ip_sum; 1671 u_int16_t flags; /* Let SCRUB trigger behavior in 1672 * state code. Easier than tags */ 1673 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1674 u_int16_t virtual_proto; 1675 #define PF_VPROTO_FRAGMENT 256 1676 sa_family_t af; 1677 sa_family_t naf; 1678 u_int8_t proto; 1679 u_int8_t tos; 1680 u_int8_t ttl; 1681 u_int8_t dir; /* direction */ 1682 u_int8_t sidx; /* key index for source */ 1683 u_int8_t didx; /* key index for destination */ 1684 #define PFDESC_SCTP_INIT 0x0001 1685 #define PFDESC_SCTP_INIT_ACK 0x0002 1686 #define PFDESC_SCTP_COOKIE 0x0004 1687 #define PFDESC_SCTP_COOKIE_ACK 0x0008 1688 #define PFDESC_SCTP_ABORT 0x0010 1689 #define PFDESC_SCTP_SHUTDOWN 0x0020 1690 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040 1691 #define PFDESC_SCTP_DATA 0x0080 1692 #define PFDESC_SCTP_ASCONF 0x0100 1693 #define PFDESC_SCTP_HEARTBEAT 0x0200 1694 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400 1695 #define PFDESC_SCTP_OTHER 0x0800 1696 #define PFDESC_SCTP_ADD_IP 0x1000 1697 u_int16_t sctp_flags; 1698 u_int32_t sctp_initiate_tag; 1699 u_int16_t sctp_dummy_sum; 1700 struct pf_krule *related_rule; 1701 1702 struct pf_sctp_multihome_jobs sctp_multihome_jobs; 1703 }; 1704 1705 struct pf_sctp_multihome_job { 1706 TAILQ_ENTRY(pf_sctp_multihome_job) next; 1707 struct pf_pdesc pd; 1708 struct pf_addr src; 1709 struct pf_addr dst; 1710 int op; 1711 }; 1712 1713 #endif 1714 1715 /* flags for RDR options */ 1716 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1717 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1718 1719 /* UDP state enumeration */ 1720 #define PFUDPS_NO_TRAFFIC 0 1721 #define PFUDPS_SINGLE 1 1722 #define PFUDPS_MULTIPLE 2 1723 1724 #define PFUDPS_NSTATES 3 /* number of state levels */ 1725 1726 #define PFUDPS_NAMES { \ 1727 "NO_TRAFFIC", \ 1728 "SINGLE", \ 1729 "MULTIPLE", \ 1730 NULL \ 1731 } 1732 1733 /* Other protocol state enumeration */ 1734 #define PFOTHERS_NO_TRAFFIC 0 1735 #define PFOTHERS_SINGLE 1 1736 #define PFOTHERS_MULTIPLE 2 1737 1738 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1739 1740 #define PFOTHERS_NAMES { \ 1741 "NO_TRAFFIC", \ 1742 "SINGLE", \ 1743 "MULTIPLE", \ 1744 NULL \ 1745 } 1746 1747 #define ACTION_SET(a, x) \ 1748 do { \ 1749 if ((a) != NULL) \ 1750 *(a) = (x); \ 1751 } while (0) 1752 1753 #define REASON_SET(a, x) \ 1754 do { \ 1755 SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \ 1756 if ((a) != NULL) \ 1757 *(a) = (x); \ 1758 if (x < PFRES_MAX) \ 1759 counter_u64_add(V_pf_status.counters[x], 1); \ 1760 } while (0) 1761 1762 enum pf_syncookies_mode { 1763 PF_SYNCOOKIES_NEVER = 0, 1764 PF_SYNCOOKIES_ALWAYS = 1, 1765 PF_SYNCOOKIES_ADAPTIVE = 2, 1766 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1767 }; 1768 1769 #define PF_SYNCOOKIES_HIWATPCT 25 1770 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1771 1772 #ifdef _KERNEL 1773 struct pf_kstatus { 1774 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1775 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1776 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1777 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1778 uint32_t states; 1779 uint32_t src_nodes; 1780 uint32_t running; 1781 uint32_t since; 1782 uint32_t debug; 1783 uint32_t hostid; 1784 char ifname[IFNAMSIZ]; 1785 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1786 bool keep_counters; 1787 enum pf_syncookies_mode syncookies_mode; 1788 bool syncookies_active; 1789 uint64_t syncookies_inflight[2]; 1790 uint32_t states_halfopen; 1791 uint32_t reass; 1792 }; 1793 #endif 1794 1795 struct pf_divert { 1796 union { 1797 struct in_addr ipv4; 1798 struct in6_addr ipv6; 1799 } addr; 1800 u_int16_t port; 1801 }; 1802 1803 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1804 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1805 1806 struct pf_fragment_tag { 1807 uint16_t ft_hdrlen; /* header length of reassembled pkt */ 1808 uint16_t ft_extoff; /* last extension header offset or 0 */ 1809 uint16_t ft_maxlen; /* maximum fragment payload length */ 1810 uint32_t ft_id; /* fragment id */ 1811 }; 1812 1813 /* 1814 * Limit the length of the fragment queue traversal. Remember 1815 * search entry points based on the fragment offset. 1816 */ 1817 #define PF_FRAG_ENTRY_POINTS 16 1818 1819 /* 1820 * The number of entries in the fragment queue must be limited 1821 * to avoid DoS by linear searching. Instead of a global limit, 1822 * use a limit per entry point. For large packets these sum up. 1823 */ 1824 #define PF_FRAG_ENTRY_LIMIT 64 1825 1826 /* 1827 * ioctl parameter structures 1828 */ 1829 1830 struct pfioc_pooladdr { 1831 u_int32_t action; 1832 u_int32_t ticket; 1833 u_int32_t nr; 1834 u_int32_t r_num; 1835 u_int8_t r_action; 1836 u_int8_t r_last; 1837 u_int8_t af; 1838 char anchor[MAXPATHLEN]; 1839 struct pf_pooladdr addr; 1840 }; 1841 1842 struct pfioc_rule { 1843 u_int32_t action; 1844 u_int32_t ticket; 1845 u_int32_t pool_ticket; 1846 u_int32_t nr; 1847 char anchor[MAXPATHLEN]; 1848 char anchor_call[MAXPATHLEN]; 1849 struct pf_rule rule; 1850 }; 1851 1852 struct pfioc_natlook { 1853 struct pf_addr saddr; 1854 struct pf_addr daddr; 1855 struct pf_addr rsaddr; 1856 struct pf_addr rdaddr; 1857 u_int16_t sport; 1858 u_int16_t dport; 1859 u_int16_t rsport; 1860 u_int16_t rdport; 1861 sa_family_t af; 1862 u_int8_t proto; 1863 u_int8_t direction; 1864 }; 1865 1866 struct pfioc_state { 1867 struct pfsync_state_1301 state; 1868 }; 1869 1870 struct pfioc_src_node_kill { 1871 sa_family_t psnk_af; 1872 struct pf_rule_addr psnk_src; 1873 struct pf_rule_addr psnk_dst; 1874 u_int psnk_killed; 1875 }; 1876 1877 #ifdef _KERNEL 1878 struct pf_kstate_kill { 1879 struct pf_state_cmp psk_pfcmp; 1880 sa_family_t psk_af; 1881 int psk_proto; 1882 struct pf_rule_addr psk_src; 1883 struct pf_rule_addr psk_dst; 1884 struct pf_rule_addr psk_rt_addr; 1885 char psk_ifname[IFNAMSIZ]; 1886 char psk_label[PF_RULE_LABEL_SIZE]; 1887 u_int psk_killed; 1888 bool psk_kill_match; 1889 bool psk_nat; 1890 }; 1891 #endif 1892 1893 struct pfioc_state_kill { 1894 struct pf_state_cmp psk_pfcmp; 1895 sa_family_t psk_af; 1896 int psk_proto; 1897 struct pf_rule_addr psk_src; 1898 struct pf_rule_addr psk_dst; 1899 char psk_ifname[IFNAMSIZ]; 1900 char psk_label[PF_RULE_LABEL_SIZE]; 1901 u_int psk_killed; 1902 }; 1903 1904 struct pfioc_states { 1905 int ps_len; 1906 union { 1907 void *ps_buf; 1908 struct pfsync_state_1301 *ps_states; 1909 }; 1910 }; 1911 1912 struct pfioc_states_v2 { 1913 int ps_len; 1914 uint64_t ps_req_version; 1915 union { 1916 void *ps_buf; 1917 struct pf_state_export *ps_states; 1918 }; 1919 }; 1920 1921 struct pfioc_src_nodes { 1922 int psn_len; 1923 union { 1924 void *psn_buf; 1925 struct pf_src_node *psn_src_nodes; 1926 }; 1927 }; 1928 1929 struct pfioc_if { 1930 char ifname[IFNAMSIZ]; 1931 }; 1932 1933 struct pfioc_tm { 1934 int timeout; 1935 int seconds; 1936 }; 1937 1938 struct pfioc_limit { 1939 int index; 1940 unsigned limit; 1941 }; 1942 1943 struct pfioc_altq_v0 { 1944 u_int32_t action; 1945 u_int32_t ticket; 1946 u_int32_t nr; 1947 struct pf_altq_v0 altq; 1948 }; 1949 1950 struct pfioc_altq_v1 { 1951 u_int32_t action; 1952 u_int32_t ticket; 1953 u_int32_t nr; 1954 /* 1955 * Placed here so code that only uses the above parameters can be 1956 * written entirely in terms of the v0 or v1 type. 1957 */ 1958 u_int32_t version; 1959 struct pf_altq_v1 altq; 1960 }; 1961 1962 /* 1963 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1964 * the latest version of struct pf_altq_vX as it has that struct as a 1965 * member. 1966 */ 1967 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1968 1969 struct pfioc_qstats_v0 { 1970 u_int32_t ticket; 1971 u_int32_t nr; 1972 void *buf; 1973 int nbytes; 1974 u_int8_t scheduler; 1975 }; 1976 1977 struct pfioc_qstats_v1 { 1978 u_int32_t ticket; 1979 u_int32_t nr; 1980 void *buf; 1981 int nbytes; 1982 u_int8_t scheduler; 1983 /* 1984 * Placed here so code that only uses the above parameters can be 1985 * written entirely in terms of the v0 or v1 type. 1986 */ 1987 u_int32_t version; /* Requested version of stats struct */ 1988 }; 1989 1990 /* Latest version of struct pfioc_qstats_vX */ 1991 #define PFIOC_QSTATS_VERSION 1 1992 1993 struct pfioc_ruleset { 1994 u_int32_t nr; 1995 char path[MAXPATHLEN]; 1996 char name[PF_ANCHOR_NAME_SIZE]; 1997 }; 1998 1999 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 2000 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 2001 #define PF_RULESET_ETH (PF_RULESET_MAX+2) 2002 struct pfioc_trans { 2003 int size; /* number of elements */ 2004 int esize; /* size of each element in bytes */ 2005 struct pfioc_trans_e { 2006 int rs_num; 2007 char anchor[MAXPATHLEN]; 2008 u_int32_t ticket; 2009 } *array; 2010 }; 2011 2012 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 2013 #define PFR_FLAG_DUMMY 0x00000002 2014 #define PFR_FLAG_FEEDBACK 0x00000004 2015 #define PFR_FLAG_CLSTATS 0x00000008 2016 #define PFR_FLAG_ADDRSTOO 0x00000010 2017 #define PFR_FLAG_REPLACE 0x00000020 2018 #define PFR_FLAG_ALLRSETS 0x00000040 2019 #define PFR_FLAG_ALLMASK 0x0000007F 2020 #ifdef _KERNEL 2021 #define PFR_FLAG_USERIOCTL 0x10000000 2022 #endif 2023 2024 struct pfioc_table { 2025 struct pfr_table pfrio_table; 2026 void *pfrio_buffer; 2027 int pfrio_esize; 2028 int pfrio_size; 2029 int pfrio_size2; 2030 int pfrio_nadd; 2031 int pfrio_ndel; 2032 int pfrio_nchange; 2033 int pfrio_flags; 2034 u_int32_t pfrio_ticket; 2035 }; 2036 #define pfrio_exists pfrio_nadd 2037 #define pfrio_nzero pfrio_nadd 2038 #define pfrio_nmatch pfrio_nadd 2039 #define pfrio_naddr pfrio_size2 2040 #define pfrio_setflag pfrio_size2 2041 #define pfrio_clrflag pfrio_nadd 2042 2043 struct pfioc_iface { 2044 char pfiio_name[IFNAMSIZ]; 2045 void *pfiio_buffer; 2046 int pfiio_esize; 2047 int pfiio_size; 2048 int pfiio_nzero; 2049 int pfiio_flags; 2050 }; 2051 2052 /* 2053 * ioctl operations 2054 */ 2055 2056 #define DIOCSTART _IO ('D', 1) 2057 #define DIOCSTOP _IO ('D', 2) 2058 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2059 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 2060 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2061 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 2062 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 2063 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2064 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 2065 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2066 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv) 2067 #define DIOCCLRSTATUS _IO ('D', 22) 2068 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2069 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2070 #ifdef COMPAT_FREEBSD14 2071 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2072 #endif 2073 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2074 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2075 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2076 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2077 #define DIOCCLRRULECTRS _IO ('D', 38) 2078 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2079 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2080 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 2081 #define DIOCSTARTALTQ _IO ('D', 42) 2082 #define DIOCSTOPALTQ _IO ('D', 43) 2083 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 2084 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 2085 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 2086 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 2087 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 2088 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 2089 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 2090 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 2091 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 2092 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 2093 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2094 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2095 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2096 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2097 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2098 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2099 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2100 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2101 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2102 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2103 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2104 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2105 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2106 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2107 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2108 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2109 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2110 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2111 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2112 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2113 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2114 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2115 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2116 #define DIOCOSFPFLUSH _IO('D', 78) 2117 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2118 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2119 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2120 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2121 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2122 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2123 #define DIOCCLRSRCNODES _IO('D', 85) 2124 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2125 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2126 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2127 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2128 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2129 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 2130 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 2131 #ifdef COMPAT_FREEBSD14 2132 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2) 2133 #endif 2134 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv) 2135 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv) 2136 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv) 2137 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv) 2138 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv) 2139 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv) 2140 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv) 2141 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv) 2142 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv) 2143 #define DIOCSETREASS _IOWR('D', 102, u_int32_t) 2144 2145 struct pf_ifspeed_v0 { 2146 char ifname[IFNAMSIZ]; 2147 u_int32_t baudrate; 2148 }; 2149 2150 struct pf_ifspeed_v1 { 2151 char ifname[IFNAMSIZ]; 2152 u_int32_t baudrate32; 2153 /* layout identical to struct pf_ifspeed_v0 up to this point */ 2154 u_int64_t baudrate; 2155 }; 2156 2157 /* Latest version of struct pf_ifspeed_vX */ 2158 #define PF_IFSPEED_VERSION 1 2159 2160 /* 2161 * Compatibility and convenience macros 2162 */ 2163 #ifndef _KERNEL 2164 #ifdef PFIOC_USE_LATEST 2165 /* 2166 * Maintaining in-tree consumers of the ioctl interface is easier when that 2167 * code can be written in terms old names that refer to the latest interface 2168 * version as that reduces the required changes in the consumers to those 2169 * that are functionally necessary to accommodate a new interface version. 2170 */ 2171 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 2172 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 2173 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 2174 2175 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 2176 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 2177 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 2178 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 2179 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 2180 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 2181 #else 2182 /* 2183 * When building out-of-tree code that is written for the old interface, 2184 * such as may exist in ports for example, resolve the old struct tags and 2185 * ioctl command names to the v0 versions. 2186 */ 2187 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 2188 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 2189 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 2190 2191 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 2192 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 2193 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 2194 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 2195 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 2196 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 2197 #endif /* PFIOC_USE_LATEST */ 2198 #endif /* _KERNEL */ 2199 2200 #ifdef _KERNEL 2201 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 2202 struct pf_srchash { 2203 struct pf_ksrc_node_list nodes; 2204 struct mtx lock; 2205 }; 2206 2207 struct pf_keyhash { 2208 LIST_HEAD(, pf_state_key) keys; 2209 struct mtx lock; 2210 }; 2211 2212 struct pf_idhash { 2213 LIST_HEAD(, pf_kstate) states; 2214 struct mtx lock; 2215 }; 2216 2217 struct pf_udpendpointhash { 2218 LIST_HEAD(, pf_udp_endpoint) endpoints; 2219 /* refcont is synchronized on the source endpoint's row lock */ 2220 struct mtx lock; 2221 }; 2222 2223 extern u_long pf_ioctl_maxcount; 2224 VNET_DECLARE(u_long, pf_hashmask); 2225 #define V_pf_hashmask VNET(pf_hashmask) 2226 VNET_DECLARE(u_long, pf_srchashmask); 2227 #define V_pf_srchashmask VNET(pf_srchashmask) 2228 VNET_DECLARE(u_long, pf_udpendpointhashmask); 2229 #define V_pf_udpendpointhashmask VNET(pf_udpendpointhashmask) 2230 #define PF_HASHSIZ (131072) 2231 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 2232 #define PF_UDPENDHASHSIZ (PF_HASHSIZ/4) 2233 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 2234 VNET_DECLARE(struct pf_idhash *, pf_idhash); 2235 VNET_DECLARE(struct pf_udpendpointhash *, pf_udpendpointhash); 2236 #define V_pf_keyhash VNET(pf_keyhash) 2237 #define V_pf_idhash VNET(pf_idhash) 2238 #define V_pf_udpendpointhash VNET(pf_udpendpointhash) 2239 VNET_DECLARE(struct pf_srchash *, pf_srchash); 2240 #define V_pf_srchash VNET(pf_srchash) 2241 2242 #define PF_IDHASHID(id) (be64toh(id) % (V_pf_hashmask + 1)) 2243 #define PF_IDHASH(s) PF_IDHASHID((s)->id) 2244 2245 VNET_DECLARE(void *, pf_swi_cookie); 2246 #define V_pf_swi_cookie VNET(pf_swi_cookie) 2247 VNET_DECLARE(struct intr_event *, pf_swi_ie); 2248 #define V_pf_swi_ie VNET(pf_swi_ie) 2249 2250 VNET_DECLARE(struct unrhdr64, pf_stateid); 2251 #define V_pf_stateid VNET(pf_stateid) 2252 2253 TAILQ_HEAD(pf_altqqueue, pf_altq); 2254 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 2255 #define V_pf_altqs VNET(pf_altqs) 2256 VNET_DECLARE(struct pf_kpalist, pf_pabuf[3]); 2257 #define V_pf_pabuf VNET(pf_pabuf) 2258 2259 VNET_DECLARE(u_int32_t, ticket_altqs_active); 2260 #define V_ticket_altqs_active VNET(ticket_altqs_active) 2261 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 2262 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 2263 VNET_DECLARE(int, altqs_inactive_open); 2264 #define V_altqs_inactive_open VNET(altqs_inactive_open) 2265 VNET_DECLARE(u_int32_t, ticket_pabuf); 2266 #define V_ticket_pabuf VNET(ticket_pabuf) 2267 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 2268 #define V_pf_altqs_active VNET(pf_altqs_active) 2269 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 2270 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 2271 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 2272 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 2273 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 2274 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 2275 2276 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 2277 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 2278 2279 #ifdef PF_WANT_32_TO_64_COUNTER 2280 LIST_HEAD(allkiflist_head, pfi_kkif); 2281 VNET_DECLARE(struct allkiflist_head, pf_allkiflist); 2282 #define V_pf_allkiflist VNET(pf_allkiflist) 2283 VNET_DECLARE(size_t, pf_allkifcount); 2284 #define V_pf_allkifcount VNET(pf_allkifcount) 2285 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker); 2286 #define V_pf_kifmarker VNET(pf_kifmarker) 2287 2288 LIST_HEAD(allrulelist_head, pf_krule); 2289 VNET_DECLARE(struct allrulelist_head, pf_allrulelist); 2290 #define V_pf_allrulelist VNET(pf_allrulelist) 2291 VNET_DECLARE(size_t, pf_allrulecount); 2292 #define V_pf_allrulecount VNET(pf_allrulecount) 2293 VNET_DECLARE(struct pf_krule *, pf_rulemarker); 2294 #define V_pf_rulemarker VNET(pf_rulemarker) 2295 #endif 2296 2297 void unhandled_af(int) __dead2; 2298 int pf_start(void); 2299 int pf_stop(void); 2300 void pf_initialize(void); 2301 void pf_mtag_initialize(void); 2302 void pf_mtag_cleanup(void); 2303 void pf_cleanup(void); 2304 2305 struct pf_mtag *pf_get_mtag(struct mbuf *); 2306 2307 extern void pf_calc_skip_steps(struct pf_krulequeue *); 2308 #ifdef ALTQ 2309 extern void pf_altq_ifnet_event(struct ifnet *, int); 2310 #endif 2311 VNET_DECLARE(uma_zone_t, pf_state_z); 2312 #define V_pf_state_z VNET(pf_state_z) 2313 VNET_DECLARE(uma_zone_t, pf_state_key_z); 2314 #define V_pf_state_key_z VNET(pf_state_key_z) 2315 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z); 2316 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z) 2317 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 2318 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 2319 2320 extern void pf_purge_thread(void *); 2321 extern void pf_unload_vnet_purge(void); 2322 extern void pf_intr(void *); 2323 extern void pf_purge_expired_src_nodes(void); 2324 2325 extern int pf_remove_state(struct pf_kstate *); 2326 extern int pf_state_insert(struct pfi_kkif *, 2327 struct pfi_kkif *, 2328 struct pf_state_key *, 2329 struct pf_state_key *, 2330 struct pf_kstate *); 2331 extern struct pf_kstate *pf_alloc_state(int); 2332 extern void pf_free_state(struct pf_kstate *); 2333 extern void pf_killstates(struct pf_kstate_kill *, 2334 unsigned int *); 2335 extern unsigned int pf_clear_states(const struct pf_kstate_kill *); 2336 2337 static __inline void 2338 pf_ref_state(struct pf_kstate *s) 2339 { 2340 2341 refcount_acquire(&s->refs); 2342 } 2343 2344 static __inline int 2345 pf_release_state(struct pf_kstate *s) 2346 { 2347 2348 if (refcount_release(&s->refs)) { 2349 pf_free_state(s); 2350 return (1); 2351 } else 2352 return (0); 2353 } 2354 2355 static __inline int 2356 pf_release_staten(struct pf_kstate *s, u_int n) 2357 { 2358 2359 if (refcount_releasen(&s->refs, n)) { 2360 pf_free_state(s); 2361 return (1); 2362 } else 2363 return (0); 2364 } 2365 2366 static __inline uint64_t 2367 pf_get_uptime(void) 2368 { 2369 struct timeval t; 2370 microuptime(&t); 2371 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2372 } 2373 2374 static __inline uint64_t 2375 pf_get_time(void) 2376 { 2377 struct timeval t; 2378 microtime(&t); 2379 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2380 } 2381 2382 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 2383 extern struct pf_kstate *pf_find_state_all( 2384 const struct pf_state_key_cmp *, 2385 u_int, int *); 2386 extern bool pf_find_state_all_exists( 2387 const struct pf_state_key_cmp *, 2388 u_int); 2389 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp 2390 *endpoint); 2391 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af, 2392 struct pf_addr *src_addr, uint16_t src_port, 2393 struct pf_addr *nat_addr, uint16_t nat_port); 2394 extern int pf_udp_mapping_insert(struct pf_udp_mapping 2395 *mapping); 2396 extern void pf_udp_mapping_release(struct pf_udp_mapping 2397 *mapping); 2398 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t); 2399 extern bool pf_src_node_exists(struct pf_ksrc_node **, 2400 struct pf_srchash *); 2401 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 2402 struct pf_krule *, sa_family_t, 2403 struct pf_srchash **, pf_sn_types_t, bool); 2404 extern void pf_unlink_src_node(struct pf_ksrc_node *); 2405 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 2406 extern void pf_print_state(struct pf_kstate *); 2407 extern void pf_print_flags(uint16_t); 2408 extern int pf_addr_wrap_neq(struct pf_addr_wrap *, 2409 struct pf_addr_wrap *); 2410 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2411 u_int8_t); 2412 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 2413 u_int16_t, u_int16_t, u_int8_t); 2414 2415 VNET_DECLARE(struct ifnet *, sync_ifp); 2416 #define V_sync_ifp VNET(sync_ifp); 2417 VNET_DECLARE(struct pf_krule, pf_default_rule); 2418 #define V_pf_default_rule VNET(pf_default_rule) 2419 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *, 2420 sa_family_t); 2421 void pf_free_rule(struct pf_krule *); 2422 2423 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 2424 int pf_scan_sctp(struct pf_pdesc *); 2425 #if defined(INET) || defined(INET6) 2426 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *, 2427 struct pf_rule_actions *); 2428 #endif 2429 #ifdef INET 2430 int pf_normalize_ip(u_short *, struct pf_pdesc *); 2431 #endif /* INET */ 2432 2433 #ifdef INET6 2434 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *); 2435 void pf_poolmask(struct pf_addr *, struct pf_addr*, 2436 struct pf_addr *, struct pf_addr *, sa_family_t); 2437 void pf_addr_inc(struct pf_addr *, sa_family_t); 2438 int pf_max_frag_size(struct mbuf *); 2439 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, 2440 struct ifnet *, bool); 2441 #endif /* INET6 */ 2442 2443 int pf_multihome_scan_init(int, int, struct pf_pdesc *); 2444 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *); 2445 2446 u_int32_t pf_new_isn(struct pf_kstate *); 2447 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, u_short *, 2448 sa_family_t); 2449 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2450 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2451 u_int8_t); 2452 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2453 int pf_patch_16(struct pf_pdesc *, void *, u_int16_t, bool); 2454 int pf_patch_32(struct pf_pdesc *, void *, u_int32_t, bool); 2455 void pf_send_deferred_syn(struct pf_kstate *); 2456 int pf_match_addr(u_int8_t, const struct pf_addr *, 2457 const struct pf_addr *, const struct pf_addr *, sa_family_t); 2458 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *, 2459 const struct pf_addr *, sa_family_t); 2460 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2461 2462 void pf_normalize_init(void); 2463 void pf_normalize_cleanup(void); 2464 int pf_normalize_tcp(struct pf_pdesc *); 2465 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2466 int pf_normalize_tcp_init(struct pf_pdesc *, 2467 struct tcphdr *, struct pf_state_peer *); 2468 int pf_normalize_tcp_stateful(struct pf_pdesc *, 2469 u_short *, struct tcphdr *, struct pf_kstate *, 2470 struct pf_state_peer *, struct pf_state_peer *, int *); 2471 int pf_normalize_sctp_init(struct pf_pdesc *, 2472 struct pf_state_peer *, struct pf_state_peer *); 2473 int pf_normalize_sctp(struct pf_pdesc *); 2474 u_int32_t 2475 pf_state_expires(const struct pf_kstate *); 2476 void pf_purge_expired_fragments(void); 2477 void pf_purge_fragments(uint32_t); 2478 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2479 int); 2480 int pf_socket_lookup(struct pf_pdesc *); 2481 struct pf_state_key *pf_alloc_state_key(int); 2482 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t, 2483 struct pf_addr *, u_int16_t, u_int16_t, int); 2484 int pf_translate_af(struct pf_pdesc *); 2485 void pfr_initialize(void); 2486 void pfr_cleanup(void); 2487 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2488 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2489 u_int64_t, int, int, int); 2490 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t, 2491 pf_addr_filter_func_t); 2492 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2493 struct pfr_ktable * 2494 pfr_attach_table(struct pf_kruleset *, char *); 2495 struct pfr_ktable * 2496 pfr_eth_attach_table(struct pf_keth_ruleset *, char *); 2497 void pfr_detach_table(struct pfr_ktable *); 2498 int pfr_clr_tables(struct pfr_table *, int *, int); 2499 int pfr_add_tables(struct pfr_table *, int, int *, int); 2500 int pfr_del_tables(struct pfr_table *, int, int *, int); 2501 int pfr_table_count(struct pfr_table *, int); 2502 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2503 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2504 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2505 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2506 int pfr_clr_addrs(struct pfr_table *, int *, int); 2507 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, time_t); 2508 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2509 int); 2510 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2511 int); 2512 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2513 int *, int *, int *, int, u_int32_t); 2514 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2515 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2516 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2517 int); 2518 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2519 int); 2520 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2521 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2522 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2523 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2524 int *, u_int32_t, int); 2525 2526 MALLOC_DECLARE(PFI_MTYPE); 2527 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2528 #define V_pfi_all VNET(pfi_all) 2529 2530 void pfi_initialize(void); 2531 void pfi_initialize_vnet(void); 2532 void pfi_cleanup(void); 2533 void pfi_cleanup_vnet(void); 2534 void pfi_kkif_ref(struct pfi_kkif *); 2535 void pfi_kkif_unref(struct pfi_kkif *); 2536 struct pfi_kkif *pfi_kkif_find(const char *); 2537 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2538 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2539 void pfi_kkif_purge(void); 2540 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2541 sa_family_t); 2542 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2543 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2544 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2545 void pfi_update_status(const char *, struct pf_status *); 2546 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2547 int pfi_set_flags(const char *, int); 2548 int pfi_clear_flags(const char *, int); 2549 2550 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2551 int pf_tag_packet(struct pf_pdesc *, int); 2552 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2553 sa_family_t); 2554 2555 u_int16_t pf_get_mss(struct pf_pdesc *); 2556 u_int8_t pf_get_wscale(struct pf_pdesc *); 2557 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2558 const struct pf_addr *, const struct pf_addr *, 2559 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2560 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2561 u_int16_t, u_int16_t, u_int, int); 2562 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2563 const struct pf_addr *, const struct pf_addr *, 2564 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2565 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2566 u_int16_t, u_int16_t, int); 2567 2568 void pf_syncookies_init(void); 2569 void pf_syncookies_cleanup(void); 2570 int pf_get_syncookies(struct pfioc_nv *); 2571 int pf_set_syncookies(struct pfioc_nv *); 2572 int pf_synflood_check(struct pf_pdesc *); 2573 void pf_syncookie_send(struct pf_pdesc *); 2574 bool pf_syncookie_check(struct pf_pdesc *); 2575 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2576 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *); 2577 2578 VNET_DECLARE(struct pf_kstatus, pf_status); 2579 #define V_pf_status VNET(pf_status) 2580 2581 struct pf_limit { 2582 uma_zone_t zone; 2583 u_int limit; 2584 }; 2585 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2586 #define V_pf_limits VNET(pf_limits) 2587 2588 #endif /* _KERNEL */ 2589 2590 #ifdef _KERNEL 2591 struct pf_nl_pooladdr { 2592 u_int32_t action; 2593 u_int32_t ticket; 2594 u_int32_t nr; 2595 u_int32_t r_num; 2596 u_int8_t r_action; 2597 u_int8_t r_last; 2598 u_int8_t af; 2599 char anchor[MAXPATHLEN]; 2600 struct pf_pooladdr addr; 2601 /* Above this is identical to pfioc_pooladdr */ 2602 int which; 2603 }; 2604 2605 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2606 #define V_pf_anchors VNET(pf_anchors) 2607 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2608 #define V_pf_main_anchor VNET(pf_main_anchor) 2609 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors); 2610 #define V_pf_keth_anchors VNET(pf_keth_anchors) 2611 #define pf_main_ruleset V_pf_main_anchor.ruleset 2612 2613 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor); 2614 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor) 2615 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth); 2616 #define V_pf_keth VNET(pf_keth) 2617 2618 void pf_init_kruleset(struct pf_kruleset *); 2619 void pf_init_keth(struct pf_keth_ruleset *); 2620 int pf_kanchor_setup(struct pf_krule *, 2621 const struct pf_kruleset *, const char *); 2622 int pf_kanchor_copyout(const struct pf_kruleset *, 2623 const struct pf_krule *, char *, size_t); 2624 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2625 const struct pf_krule *, nvlist_t *); 2626 void pf_kanchor_remove(struct pf_krule *); 2627 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2628 struct pf_kruleset *pf_find_kruleset(const char *); 2629 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2630 void pf_rs_initialize(void); 2631 2632 2633 struct pf_krule *pf_krule_alloc(void); 2634 2635 void pf_remove_if_empty_keth_ruleset( 2636 struct pf_keth_ruleset *); 2637 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *); 2638 struct pf_keth_anchor *pf_find_keth_anchor(const char *); 2639 int pf_keth_anchor_setup(struct pf_keth_rule *, 2640 const struct pf_keth_ruleset *, const char *); 2641 int pf_keth_anchor_nvcopyout( 2642 const struct pf_keth_ruleset *, 2643 const struct pf_keth_rule *, nvlist_t *); 2644 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *); 2645 void pf_keth_anchor_remove(struct pf_keth_rule *); 2646 2647 int pf_ioctl_getrules(struct pfioc_rule *); 2648 int pf_ioctl_addrule(struct pf_krule *, uint32_t, 2649 uint32_t, const char *, const char *, uid_t uid, 2650 pid_t); 2651 void pf_ioctl_clear_status(void); 2652 int pf_ioctl_get_timeout(int, int *); 2653 int pf_ioctl_set_timeout(int, int, int *); 2654 int pf_ioctl_get_limit(int, unsigned int *); 2655 int pf_ioctl_set_limit(int, unsigned int, unsigned int *); 2656 int pf_ioctl_begin_addrs(uint32_t *); 2657 int pf_ioctl_add_addr(struct pf_nl_pooladdr *); 2658 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *); 2659 int pf_ioctl_get_addr(struct pf_nl_pooladdr *); 2660 int pf_ioctl_get_rulesets(struct pfioc_ruleset *); 2661 int pf_ioctl_get_ruleset(struct pfioc_ruleset *); 2662 2663 void pf_krule_free(struct pf_krule *); 2664 void pf_krule_clear_counters(struct pf_krule *); 2665 void pf_addr_copyout(struct pf_addr_wrap *); 2666 #endif 2667 2668 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2669 int pf_osfp_add(struct pf_osfp_ioctl *); 2670 #ifdef _KERNEL 2671 struct pf_osfp_enlist * 2672 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *); 2673 #endif /* _KERNEL */ 2674 void pf_osfp_flush(void); 2675 int pf_osfp_get(struct pf_osfp_ioctl *); 2676 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2677 2678 #ifdef _KERNEL 2679 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t); 2680 2681 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *, 2682 struct pf_kruleset **, int, struct pf_krule **, 2683 struct pf_krule **); 2684 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *, 2685 struct pf_kruleset **, int, struct pf_krule **, 2686 struct pf_krule **, int *); 2687 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *, 2688 int *, struct pf_keth_ruleset **, 2689 struct pf_keth_rule **, struct pf_keth_rule **, 2690 int *); 2691 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *, 2692 int *, struct pf_keth_ruleset **, 2693 struct pf_keth_rule **, struct pf_keth_rule **, 2694 int *); 2695 2696 u_short pf_map_addr(u_int8_t, struct pf_krule *, 2697 struct pf_addr *, struct pf_addr *, 2698 struct pfi_kkif **nkif, struct pf_addr *, 2699 struct pf_kpool *); 2700 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *, 2701 struct pf_addr *, struct pf_addr *, 2702 struct pfi_kkif **nkif, struct pf_addr *, 2703 struct pf_ksrc_node **, struct pf_srchash **, 2704 struct pf_kpool *, pf_sn_types_t); 2705 int pf_get_transaddr_af(struct pf_krule *, 2706 struct pf_pdesc *); 2707 u_short pf_get_translation(struct pf_pdesc *, 2708 int, struct pf_state_key **, struct pf_state_key **, 2709 struct pf_kanchor_stackframe *, struct pf_krule **, 2710 struct pf_udp_mapping **udp_mapping); 2711 u_short pf_get_transaddr(struct pf_pdesc *, 2712 struct pf_state_key **, struct pf_state_key **, 2713 struct pf_krule *, struct pf_udp_mapping **, 2714 u_int8_t, struct pf_kpool *); 2715 int pf_translate_compat(struct pf_pdesc *, 2716 struct pf_state_key *, struct pf_state_key *, 2717 struct pf_krule *, u_int16_t); 2718 2719 int pf_state_key_setup(struct pf_pdesc *, 2720 u_int16_t, u_int16_t, 2721 struct pf_state_key **sk, struct pf_state_key **nk); 2722 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *); 2723 void pf_rule_to_actions(struct pf_krule *, 2724 struct pf_rule_actions *); 2725 int pf_normalize_mss(struct pf_pdesc *pd); 2726 #if defined(INET) || defined(INET6) 2727 void pf_scrub(struct pf_pdesc *); 2728 #endif 2729 2730 struct pfi_kkif *pf_kkif_create(int); 2731 void pf_kkif_free(struct pfi_kkif *); 2732 void pf_kkif_zero(struct pfi_kkif *); 2733 2734 2735 /* NAT64 functions. */ 2736 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 2737 int inet_nat64_inet(const void *, void *, const void *, u_int8_t); 2738 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t); 2739 2740 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 2741 int inet_nat46_inet(const void *, void *, const void *, u_int8_t); 2742 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t); 2743 2744 #endif /* _KERNEL */ 2745 2746 #endif /* _NET_PFVAR_H_ */ 2747