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_PF); 330 MALLOC_DECLARE(M_PFHASH); 331 MALLOC_DECLARE(M_PF_RULE_ITEM); 332 333 SDT_PROVIDER_DECLARE(pf); 334 SDT_PROBE_DECLARE(pf, , test, reason_set); 335 SDT_PROBE_DECLARE(pf, , log, log); 336 337 #define DPFPRINTF(n, fmt, x...) \ 338 do { \ 339 SDT_PROBE2(pf, , log, log, (n), fmt); \ 340 if (V_pf_status.debug >= (n)) \ 341 printf(fmt "\n", ##x); \ 342 } while (0) 343 344 struct pfi_dynaddr { 345 TAILQ_ENTRY(pfi_dynaddr) entry; 346 struct pf_addr pfid_addr4; 347 struct pf_addr pfid_mask4; 348 struct pf_addr pfid_addr6; 349 struct pf_addr pfid_mask6; 350 struct pfr_ktable *pfid_kt; 351 struct pfi_kkif *pfid_kif; 352 int pfid_net; /* mask or 128 */ 353 int pfid_acnt4; /* address count IPv4 */ 354 int pfid_acnt6; /* address count IPv6 */ 355 sa_family_t pfid_af; /* rule af */ 356 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 357 }; 358 359 #define PF_NAME "pf" 360 361 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 362 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 363 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 364 365 #ifdef INVARIANTS 366 #define PF_STATE_LOCK(s) \ 367 do { \ 368 struct pf_kstate *_s = (s); \ 369 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 370 MPASS(_s->lock == &_ih->lock); \ 371 mtx_lock(_s->lock); \ 372 } while (0) 373 #define PF_STATE_UNLOCK(s) \ 374 do { \ 375 struct pf_kstate *_s = (s); \ 376 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 377 MPASS(_s->lock == &_ih->lock); \ 378 mtx_unlock(_s->lock); \ 379 } while (0) 380 #else 381 #define PF_STATE_LOCK(s) mtx_lock((s)->lock) 382 #define PF_STATE_UNLOCK(s) mtx_unlock((s)->lock) 383 #endif 384 385 #ifdef INVARIANTS 386 #define PF_STATE_LOCK_ASSERT(s) \ 387 do { \ 388 struct pf_kstate *_s = (s); \ 389 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 390 MPASS(_s->lock == &_ih->lock); \ 391 PF_HASHROW_ASSERT(_ih); \ 392 } while (0) 393 #else /* !INVARIANTS */ 394 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 395 #endif /* INVARIANTS */ 396 397 #ifdef INVARIANTS 398 #define PF_SRC_NODE_LOCK(sn) \ 399 do { \ 400 struct pf_ksrc_node *_sn = (sn); \ 401 struct pf_srchash *_sh = &V_pf_srchash[ \ 402 pf_hashsrc(&_sn->addr, _sn->af)]; \ 403 MPASS(_sn->lock == &_sh->lock); \ 404 mtx_lock(_sn->lock); \ 405 } while (0) 406 #define PF_SRC_NODE_UNLOCK(sn) \ 407 do { \ 408 struct pf_ksrc_node *_sn = (sn); \ 409 struct pf_srchash *_sh = &V_pf_srchash[ \ 410 pf_hashsrc(&_sn->addr, _sn->af)]; \ 411 MPASS(_sn->lock == &_sh->lock); \ 412 mtx_unlock(_sn->lock); \ 413 } while (0) 414 #else 415 #define PF_SRC_NODE_LOCK(sn) mtx_lock((sn)->lock) 416 #define PF_SRC_NODE_UNLOCK(sn) mtx_unlock((sn)->lock) 417 #endif 418 419 #ifdef INVARIANTS 420 #define PF_SRC_NODE_LOCK_ASSERT(sn) \ 421 do { \ 422 struct pf_ksrc_node *_sn = (sn); \ 423 struct pf_srchash *_sh = &V_pf_srchash[ \ 424 pf_hashsrc(&_sn->addr, _sn->af)]; \ 425 MPASS(_sn->lock == &_sh->lock); \ 426 PF_HASHROW_ASSERT(_sh); \ 427 } while (0) 428 #else /* !INVARIANTS */ 429 #define PF_SRC_NODE_LOCK_ASSERT(sn) do {} while (0) 430 #endif /* INVARIANTS */ 431 432 extern struct mtx_padalign pf_unlnkdrules_mtx; 433 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 434 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 435 #define PF_UNLNKDRULES_ASSERT() mtx_assert(&pf_unlnkdrules_mtx, MA_OWNED) 436 437 extern struct sx pf_config_lock; 438 #define PF_CONFIG_LOCK() sx_xlock(&pf_config_lock) 439 #define PF_CONFIG_UNLOCK() sx_xunlock(&pf_config_lock) 440 #define PF_CONFIG_ASSERT() sx_assert(&pf_config_lock, SA_XLOCKED) 441 442 VNET_DECLARE(struct rmlock, pf_rules_lock); 443 #define V_pf_rules_lock VNET(pf_rules_lock) 444 445 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 446 #define PF_RULES_RLOCK() rm_rlock(&V_pf_rules_lock, &_pf_rules_tracker) 447 #define PF_RULES_RUNLOCK() rm_runlock(&V_pf_rules_lock, &_pf_rules_tracker) 448 #define PF_RULES_WLOCK() rm_wlock(&V_pf_rules_lock) 449 #define PF_RULES_WUNLOCK() rm_wunlock(&V_pf_rules_lock) 450 #define PF_RULES_WOWNED() rm_wowned(&V_pf_rules_lock) 451 #define PF_RULES_ASSERT() rm_assert(&V_pf_rules_lock, RA_LOCKED) 452 #define PF_RULES_RASSERT() rm_assert(&V_pf_rules_lock, RA_RLOCKED) 453 #define PF_RULES_WASSERT() rm_assert(&V_pf_rules_lock, RA_WLOCKED) 454 455 VNET_DECLARE(struct rmlock, pf_tags_lock); 456 #define V_pf_tags_lock VNET(pf_tags_lock) 457 458 #define PF_TAGS_RLOCK_TRACKER struct rm_priotracker _pf_tags_tracker 459 #define PF_TAGS_RLOCK() rm_rlock(&V_pf_tags_lock, &_pf_tags_tracker) 460 #define PF_TAGS_RUNLOCK() rm_runlock(&V_pf_tags_lock, &_pf_tags_tracker) 461 #define PF_TAGS_WLOCK() rm_wlock(&V_pf_tags_lock) 462 #define PF_TAGS_WUNLOCK() rm_wunlock(&V_pf_tags_lock) 463 #define PF_TAGS_WASSERT() rm_assert(&V_pf_tags_lock, RA_WLOCKED) 464 465 extern struct mtx_padalign pf_table_stats_lock; 466 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock) 467 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock) 468 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock) 469 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_table_stats_lock, MA_OWNED) 470 471 extern struct sx pf_end_lock; 472 473 #define PF_MODVER 1 474 #define PFLOG_MODVER 1 475 #define PFSYNC_MODVER 1 476 477 #define PFLOG_MINVER 1 478 #define PFLOG_PREFVER PFLOG_MODVER 479 #define PFLOG_MAXVER 1 480 #define PFSYNC_MINVER 1 481 #define PFSYNC_PREFVER PFSYNC_MODVER 482 #define PFSYNC_MAXVER 1 483 484 #ifdef INET 485 #ifndef INET6 486 #define PF_INET_ONLY 487 #endif /* ! INET6 */ 488 #endif /* INET */ 489 490 #ifdef INET6 491 #ifndef INET 492 #define PF_INET6_ONLY 493 #endif /* ! INET */ 494 #endif /* INET6 */ 495 496 #ifdef INET 497 #ifdef INET6 498 #define PF_INET_INET6 499 #endif /* INET6 */ 500 #endif /* INET */ 501 502 #else 503 504 #define PF_INET_INET6 505 506 #endif /* _KERNEL */ 507 508 /* Both IPv4 and IPv6 */ 509 #ifdef PF_INET_INET6 510 511 #define PF_AEQ(a, b, c) \ 512 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 513 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 514 (a)->addr32[2] == (b)->addr32[2] && \ 515 (a)->addr32[1] == (b)->addr32[1] && \ 516 (a)->addr32[0] == (b)->addr32[0])) \ 517 518 #define PF_ANEQ(a, b, c) \ 519 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 520 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 521 (a)->addr32[1] != (b)->addr32[1] || \ 522 (a)->addr32[2] != (b)->addr32[2] || \ 523 (a)->addr32[3] != (b)->addr32[3]))) \ 524 525 #define PF_AZERO(a, c) \ 526 ((c == AF_INET && !(a)->addr32[0]) || \ 527 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 528 !(a)->addr32[2] && !(a)->addr32[3] )) \ 529 530 #else 531 532 /* Just IPv6 */ 533 534 #ifdef PF_INET6_ONLY 535 536 #define PF_AEQ(a, b, c) \ 537 ((a)->addr32[3] == (b)->addr32[3] && \ 538 (a)->addr32[2] == (b)->addr32[2] && \ 539 (a)->addr32[1] == (b)->addr32[1] && \ 540 (a)->addr32[0] == (b)->addr32[0]) \ 541 542 #define PF_ANEQ(a, b, c) \ 543 ((a)->addr32[3] != (b)->addr32[3] || \ 544 (a)->addr32[2] != (b)->addr32[2] || \ 545 (a)->addr32[1] != (b)->addr32[1] || \ 546 (a)->addr32[0] != (b)->addr32[0]) \ 547 548 #define PF_AZERO(a, c) \ 549 (!(a)->addr32[0] && \ 550 !(a)->addr32[1] && \ 551 !(a)->addr32[2] && \ 552 !(a)->addr32[3] ) \ 553 554 #else 555 556 /* Just IPv4 */ 557 #ifdef PF_INET_ONLY 558 559 #define PF_AEQ(a, b, c) \ 560 ((a)->addr32[0] == (b)->addr32[0]) 561 562 #define PF_ANEQ(a, b, c) \ 563 ((a)->addr32[0] != (b)->addr32[0]) 564 565 #define PF_AZERO(a, c) \ 566 (!(a)->addr32[0]) 567 568 #endif /* PF_INET_ONLY */ 569 #endif /* PF_INET6_ONLY */ 570 #endif /* PF_INET_INET6 */ 571 572 #ifdef _KERNEL 573 574 void unhandled_af(int) __dead2; 575 576 static void inline 577 pf_addrcpy(struct pf_addr *dst, const struct pf_addr *src, sa_family_t af) 578 { 579 switch (af) { 580 #ifdef INET 581 case AF_INET: 582 memcpy(&dst->v4, &src->v4, sizeof(dst->v4)); 583 break; 584 #endif /* INET */ 585 #ifdef INET6 586 case AF_INET6: 587 memcpy(&dst->v6, &src->v6, sizeof(dst->v6)); 588 break; 589 #endif /* INET6 */ 590 default: 591 unhandled_af(af); 592 } 593 } 594 #endif 595 596 /* 597 * XXX callers not FIB-aware in our version of pf yet. 598 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 599 */ 600 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 601 ( \ 602 (((aw)->type == PF_ADDR_NOROUTE && \ 603 pf_routable((x), (af), NULL, (rtid))) || \ 604 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 605 pf_routable((x), (af), (ifp), (rtid))) || \ 606 ((aw)->type == PF_ADDR_TABLE && \ 607 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 608 ((aw)->type == PF_ADDR_DYNIFTL && \ 609 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 610 ((aw)->type == PF_ADDR_RANGE && \ 611 !pf_match_addr_range(&(aw)->v.a.addr, \ 612 &(aw)->v.a.mask, (x), (af))) || \ 613 ((aw)->type == PF_ADDR_ADDRMASK && \ 614 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 615 !pf_match_addr(0, &(aw)->v.a.addr, \ 616 &(aw)->v.a.mask, (x), (af))))) != \ 617 (neg) \ 618 ) 619 620 #define PF_ALGNMNT(off) (((off) % 2) == 0) 621 622 /* 623 * At the moment there are no rules which have both NAT and RDR actions, 624 * apart from af-to rules, but those don't to source tracking for address 625 * translation. And the r->rdr pool is used for both NAT and RDR. 626 * So there is no PF_SN_RDR. 627 */ 628 enum pf_sn_types { PF_SN_LIMIT, PF_SN_NAT, PF_SN_ROUTE, PF_SN_MAX }; 629 typedef enum pf_sn_types pf_sn_types_t; 630 #define PF_SN_TYPE_NAMES { \ 631 "limit source-track", \ 632 "NAT/RDR sticky-address", \ 633 "route sticky-address", \ 634 NULL \ 635 } 636 637 #ifdef _KERNEL 638 639 struct pf_kpooladdr { 640 struct pf_addr_wrap addr; 641 TAILQ_ENTRY(pf_kpooladdr) entries; 642 char ifname[IFNAMSIZ]; 643 sa_family_t af; 644 struct pfi_kkif *kif; 645 }; 646 647 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 648 649 struct pf_kpool { 650 struct mtx mtx; 651 struct pf_kpalist list; 652 struct pf_kpooladdr *cur; 653 struct pf_poolhashkey key; 654 struct pf_addr counter; 655 struct pf_mape_portset mape; 656 int tblidx; 657 u_int16_t proxy_port[2]; 658 u_int8_t opts; 659 sa_family_t ipv6_nexthop_af; 660 }; 661 662 struct pf_rule_actions { 663 struct pf_addr rt_addr; 664 struct pfi_kkif *rt_kif; 665 int32_t rtableid; 666 uint32_t flags; 667 uint16_t qid; 668 uint16_t pqid; 669 uint16_t max_mss; 670 uint16_t dnpipe; 671 uint16_t dnrpipe; /* Reverse direction pipe */ 672 sa_family_t rt_af; 673 uint8_t log; 674 uint8_t set_tos; 675 uint8_t min_ttl; 676 uint8_t set_prio[2]; 677 uint8_t rt; 678 uint8_t allow_opts; 679 uint16_t max_pkt_size; 680 }; 681 682 union pf_keth_rule_ptr { 683 struct pf_keth_rule *ptr; 684 uint32_t nr; 685 }; 686 687 struct pf_keth_rule_addr { 688 uint8_t addr[ETHER_ADDR_LEN]; 689 uint8_t mask[ETHER_ADDR_LEN]; 690 bool neg; 691 uint8_t isset; 692 }; 693 694 struct pf_keth_anchor; 695 696 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule); 697 698 struct pf_keth_ruleset { 699 struct pf_keth_ruleq rules[2]; 700 struct pf_keth_rules { 701 struct pf_keth_ruleq *rules; 702 int open; 703 uint32_t ticket; 704 } active, inactive; 705 struct vnet *vnet; 706 struct pf_keth_anchor *anchor; 707 }; 708 709 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor); 710 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor); 711 struct pf_keth_anchor { 712 RB_ENTRY(pf_keth_anchor) entry_node; 713 RB_ENTRY(pf_keth_anchor) entry_global; 714 struct pf_keth_anchor *parent; 715 struct pf_keth_anchor_node children; 716 char name[PF_ANCHOR_NAME_SIZE]; 717 char path[MAXPATHLEN]; 718 struct pf_keth_ruleset ruleset; 719 int refcnt; /* anchor rules */ 720 uint8_t anchor_relative; 721 uint8_t anchor_wildcard; 722 }; 723 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node, 724 pf_keth_anchor_compare); 725 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global, 726 pf_keth_anchor_compare); 727 728 struct pf_keth_rule { 729 #define PFE_SKIP_IFP 0 730 #define PFE_SKIP_DIR 1 731 #define PFE_SKIP_PROTO 2 732 #define PFE_SKIP_SRC_ADDR 3 733 #define PFE_SKIP_DST_ADDR 4 734 #define PFE_SKIP_SRC_IP_ADDR 5 735 #define PFE_SKIP_DST_IP_ADDR 6 736 #define PFE_SKIP_COUNT 7 737 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT]; 738 739 TAILQ_ENTRY(pf_keth_rule) entries; 740 741 struct pf_keth_anchor *anchor; 742 u_int8_t anchor_relative; 743 u_int8_t anchor_wildcard; 744 745 uint32_t nr; 746 747 bool quick; 748 749 /* Filter */ 750 char ifname[IFNAMSIZ]; 751 struct pfi_kkif *kif; 752 bool ifnot; 753 uint8_t direction; 754 uint16_t proto; 755 struct pf_keth_rule_addr src, dst; 756 struct pf_rule_addr ipsrc, ipdst; 757 char match_tagname[PF_TAG_NAME_SIZE]; 758 uint16_t match_tag; 759 bool match_tag_not; 760 761 762 /* Stats */ 763 counter_u64_t evaluations; 764 counter_u64_t packets[2]; 765 counter_u64_t bytes[2]; 766 time_t *timestamp; 767 768 /* Action */ 769 char qname[PF_QNAME_SIZE]; 770 int qid; 771 char tagname[PF_TAG_NAME_SIZE]; 772 uint16_t tag; 773 char bridge_to_name[IFNAMSIZ]; 774 struct pfi_kkif *bridge_to; 775 uint8_t action; 776 uint16_t dnpipe; 777 uint32_t dnflags; 778 779 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 780 uint32_t ridentifier; 781 }; 782 783 struct pf_kthreshold { 784 uint32_t limit; 785 uint32_t seconds; 786 struct counter_rate *cr; 787 }; 788 789 RB_HEAD(pf_krule_global, pf_krule); 790 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare); 791 792 struct pf_krule { 793 struct pf_rule_addr src; 794 struct pf_rule_addr dst; 795 struct pf_krule *skip[PF_SKIP_COUNT]; 796 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 797 uint32_t ridentifier; 798 char ifname[IFNAMSIZ]; 799 char rcv_ifname[IFNAMSIZ]; 800 char qname[PF_QNAME_SIZE]; 801 char pqname[PF_QNAME_SIZE]; 802 char tagname[PF_TAG_NAME_SIZE]; 803 char match_tagname[PF_TAG_NAME_SIZE]; 804 805 char overload_tblname[PF_TABLE_NAME_SIZE]; 806 807 TAILQ_ENTRY(pf_krule) entries; 808 struct pf_kpool nat; 809 struct pf_kpool rdr; 810 struct pf_kpool route; 811 struct pf_kthreshold pktrate; 812 813 struct pf_counter_u64 evaluations; 814 struct pf_counter_u64 packets[2]; 815 struct pf_counter_u64 bytes[2]; 816 time_t *timestamp; 817 818 struct pfi_kkif *kif; 819 struct pfi_kkif *rcv_kif; 820 struct pf_kanchor *anchor; 821 struct pfr_ktable *overload_tbl; 822 823 pf_osfp_t os_fingerprint; 824 825 int32_t rtableid; 826 u_int32_t timeout[PFTM_MAX]; 827 u_int32_t max_states; 828 u_int32_t max_src_nodes; 829 u_int32_t max_src_states; 830 u_int32_t max_src_conn; 831 struct { 832 u_int32_t limit; 833 u_int32_t seconds; 834 } max_src_conn_rate; 835 uint16_t max_pkt_size; 836 u_int16_t qid; 837 u_int16_t pqid; 838 u_int16_t dnpipe; 839 u_int16_t dnrpipe; 840 u_int32_t free_flags; 841 u_int32_t nr; 842 u_int32_t prob; 843 uid_t cuid; 844 pid_t cpid; 845 846 counter_u64_t states_cur; 847 counter_u64_t states_tot; 848 counter_u64_t src_nodes[PF_SN_MAX]; 849 850 u_int16_t return_icmp; 851 u_int16_t return_icmp6; 852 u_int16_t max_mss; 853 u_int16_t tag; 854 u_int16_t match_tag; 855 u_int16_t scrub_flags; 856 857 struct pf_rule_uid uid; 858 struct pf_rule_gid gid; 859 860 u_int32_t rule_flag; 861 uint32_t rule_ref; 862 u_int8_t action; 863 u_int8_t direction; 864 u_int8_t log; 865 u_int8_t logif; 866 u_int8_t quick; 867 u_int8_t ifnot; 868 u_int8_t match_tag_not; 869 u_int8_t natpass; 870 871 u_int8_t keep_state; 872 sa_family_t af; 873 u_int8_t proto; 874 uint16_t type; 875 uint16_t code; 876 u_int8_t flags; 877 u_int8_t flagset; 878 u_int8_t min_ttl; 879 u_int8_t allow_opts; 880 u_int8_t rt; 881 u_int8_t return_ttl; 882 u_int8_t tos; 883 u_int8_t set_tos; 884 u_int8_t anchor_relative; 885 u_int8_t anchor_wildcard; 886 887 u_int8_t flush; 888 u_int8_t prio; 889 u_int8_t set_prio[2]; 890 sa_family_t naf; 891 u_int8_t rcvifnot; 892 893 struct { 894 struct pf_addr addr; 895 u_int16_t port; 896 } divert; 897 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH]; 898 RB_ENTRY(pf_krule) entry_global; 899 900 #ifdef PF_WANT_32_TO_64_COUNTER 901 LIST_ENTRY(pf_krule) allrulelist; 902 bool allrulelinked; 903 #endif 904 }; 905 906 struct pf_krule_item { 907 SLIST_ENTRY(pf_krule_item) entry; 908 struct pf_krule *r; 909 }; 910 911 SLIST_HEAD(pf_krule_slist, pf_krule_item); 912 913 struct pf_ksrc_node { 914 LIST_ENTRY(pf_ksrc_node) entry; 915 struct pf_addr addr; 916 struct pf_addr raddr; 917 struct pf_krule_slist match_rules; 918 struct pf_krule *rule; 919 struct pfi_kkif *rkif; 920 counter_u64_t bytes[2]; 921 counter_u64_t packets[2]; 922 u_int32_t states; 923 u_int32_t conn; 924 struct pf_kthreshold conn_rate; 925 u_int32_t creation; 926 u_int32_t expire; 927 sa_family_t af; 928 sa_family_t raf; 929 u_int8_t ruletype; 930 pf_sn_types_t type; 931 struct mtx *lock; 932 }; 933 #endif 934 935 struct pf_state_scrub { 936 struct timeval pfss_last; /* time received last packet */ 937 u_int32_t pfss_tsecr; /* last echoed timestamp */ 938 u_int32_t pfss_tsval; /* largest timestamp */ 939 u_int32_t pfss_tsval0; /* original timestamp */ 940 u_int16_t pfss_flags; 941 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 942 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 943 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 944 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 945 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 946 u_int8_t pfss_ttl; /* stashed TTL */ 947 u_int8_t pad; 948 union { 949 u_int32_t pfss_ts_mod; /* timestamp modulation */ 950 u_int32_t pfss_v_tag; /* SCTP verification tag */ 951 }; 952 }; 953 954 struct pf_state_host { 955 struct pf_addr addr; 956 u_int16_t port; 957 u_int16_t pad; 958 }; 959 960 struct pf_state_peer { 961 struct pf_state_scrub *scrub; /* state is scrubbed */ 962 u_int32_t seqlo; /* Max sequence number sent */ 963 u_int32_t seqhi; /* Max the other end ACKd + win */ 964 u_int32_t seqdiff; /* Sequence number modulator */ 965 u_int16_t max_win; /* largest window (pre scaling) */ 966 u_int16_t mss; /* Maximum segment size option */ 967 u_int8_t state; /* active state level */ 968 u_int8_t wscale; /* window scaling factor */ 969 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 970 u_int8_t pad[1]; 971 }; 972 973 /* Keep synced with struct pf_udp_endpoint. */ 974 struct pf_udp_endpoint_cmp { 975 struct pf_addr addr; 976 uint16_t port; 977 sa_family_t af; 978 uint8_t pad[1]; 979 }; 980 981 struct pf_udp_endpoint { 982 struct pf_addr addr; 983 uint16_t port; 984 sa_family_t af; 985 uint8_t pad[1]; 986 987 struct pf_udp_mapping *mapping; 988 LIST_ENTRY(pf_udp_endpoint) entry; 989 }; 990 991 struct pf_udp_mapping { 992 struct pf_udp_endpoint endpoints[2]; 993 u_int refs; 994 }; 995 996 /* Keep synced with struct pf_state_key. */ 997 struct pf_state_key_cmp { 998 struct pf_addr addr[2]; 999 u_int16_t port[2]; 1000 sa_family_t af; 1001 u_int8_t proto; 1002 u_int8_t pad[2]; 1003 }; 1004 1005 struct pf_state_key { 1006 struct pf_addr addr[2]; 1007 u_int16_t port[2]; 1008 sa_family_t af; 1009 u_int8_t proto; 1010 u_int8_t pad[2]; 1011 1012 LIST_ENTRY(pf_state_key) entry; 1013 TAILQ_HEAD(, pf_kstate) states[2]; 1014 }; 1015 1016 #define PF_REVERSED_KEY(state, family) \ 1017 (((state)->key[PF_SK_WIRE]->af != (state)->key[PF_SK_STACK]->af) && \ 1018 ((state)->key[PF_SK_WIRE]->af != (family)) && \ 1019 ((state)->direction == PF_IN)) 1020 1021 /* Keep synced with struct pf_kstate. */ 1022 struct pf_state_cmp { 1023 u_int64_t id; 1024 u_int32_t creatorid; 1025 u_int8_t direction; 1026 u_int8_t pad[3]; 1027 }; 1028 1029 struct pf_state_scrub_export { 1030 uint16_t pfss_flags; 1031 uint8_t pfss_ttl; /* stashed TTL */ 1032 #define PF_SCRUB_FLAG_VALID 0x01 1033 uint8_t scrub_flag; 1034 uint32_t pfss_ts_mod; /* timestamp modulation */ 1035 } __packed; 1036 1037 struct pf_state_key_export { 1038 struct pf_addr addr[2]; 1039 uint16_t port[2]; 1040 }; 1041 1042 struct pf_state_peer_export { 1043 struct pf_state_scrub_export scrub; /* state is scrubbed */ 1044 uint32_t seqlo; /* Max sequence number sent */ 1045 uint32_t seqhi; /* Max the other end ACKd + win */ 1046 uint32_t seqdiff; /* Sequence number modulator */ 1047 uint16_t max_win; /* largest window (pre scaling) */ 1048 uint16_t mss; /* Maximum segment size option */ 1049 uint8_t state; /* active state level */ 1050 uint8_t wscale; /* window scaling factor */ 1051 uint8_t dummy[6]; 1052 } __packed; 1053 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect"); 1054 1055 struct pf_state_export { 1056 uint64_t version; 1057 #define PF_STATE_VERSION 20230404 1058 uint64_t id; 1059 char ifname[IFNAMSIZ]; 1060 char orig_ifname[IFNAMSIZ]; 1061 struct pf_state_key_export key[2]; 1062 struct pf_state_peer_export src; 1063 struct pf_state_peer_export dst; 1064 struct pf_addr rt_addr; 1065 uint32_t rule; 1066 uint32_t anchor; 1067 uint32_t nat_rule; 1068 uint32_t creation; 1069 uint32_t expire; 1070 uint32_t spare0; 1071 uint64_t packets[2]; 1072 uint64_t bytes[2]; 1073 uint32_t creatorid; 1074 uint32_t spare1; 1075 sa_family_t af; 1076 uint8_t proto; 1077 uint8_t direction; 1078 uint8_t log; 1079 uint8_t state_flags_compat; 1080 uint8_t timeout; 1081 uint8_t sync_flags; 1082 uint8_t updates; 1083 uint16_t state_flags; 1084 uint16_t qid; 1085 uint16_t pqid; 1086 uint16_t dnpipe; 1087 uint16_t dnrpipe; 1088 int32_t rtableid; 1089 uint8_t min_ttl; 1090 uint8_t set_tos; 1091 uint16_t max_mss; 1092 uint8_t set_prio[2]; 1093 uint8_t rt; 1094 char rt_ifname[IFNAMSIZ]; 1095 1096 uint8_t spare[72]; 1097 }; 1098 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect"); 1099 1100 #ifdef _KERNEL 1101 struct pf_kstate { 1102 /* 1103 * Area shared with pf_state_cmp 1104 */ 1105 u_int64_t id; 1106 u_int32_t creatorid; 1107 u_int8_t direction; 1108 u_int8_t pad[3]; 1109 /* 1110 * end of the area 1111 */ 1112 1113 u_int16_t state_flags; 1114 u_int8_t timeout; 1115 u_int8_t sync_state; /* PFSYNC_S_x */ 1116 u_int8_t sync_updates; 1117 u_int refs; 1118 struct mtx *lock; 1119 TAILQ_ENTRY(pf_kstate) sync_list; 1120 TAILQ_ENTRY(pf_kstate) key_list[2]; 1121 LIST_ENTRY(pf_kstate) entry; 1122 struct pf_state_peer src; 1123 struct pf_state_peer dst; 1124 struct pf_krule_slist match_rules; 1125 struct pf_krule *rule; 1126 struct pf_krule *anchor; 1127 struct pf_krule *nat_rule; 1128 struct pf_state_key *key[2]; /* addresses stack and wire */ 1129 struct pf_udp_mapping *udp_mapping; 1130 struct pfi_kkif *kif; 1131 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 1132 struct pf_ksrc_node *sns[PF_SN_MAX];/* source nodes */ 1133 u_int64_t packets[2]; 1134 u_int64_t bytes[2]; 1135 u_int64_t creation; 1136 u_int64_t expire; 1137 u_int32_t pfsync_time; 1138 struct pf_rule_actions act; 1139 u_int16_t tag; 1140 u_int16_t if_index_in; 1141 u_int16_t if_index_out; 1142 }; 1143 1144 /* 1145 * 6 cache lines per struct, 10 structs per page. 1146 * Try to not grow the struct beyond that. 1147 */ 1148 _Static_assert(sizeof(struct pf_kstate) <= 384, "pf_kstate size crosses 384 bytes"); 1149 1150 enum pf_test_status { 1151 PF_TEST_FAIL = -1, 1152 PF_TEST_OK, 1153 PF_TEST_QUICK 1154 }; 1155 1156 struct pf_test_ctx { 1157 enum pf_test_status test_status; 1158 struct pf_pdesc *pd; 1159 struct pf_rule_actions act; 1160 uint8_t icmpcode; 1161 uint8_t icmptype; 1162 int icmp_dir; 1163 int state_icmp; 1164 int tag; 1165 int rewrite; 1166 u_short reason; 1167 struct pf_src_node *sns[PF_SN_MAX]; 1168 struct pf_krule_slist rules; 1169 struct pf_krule *nr; 1170 struct pf_krule *tr; 1171 struct pf_krule **rm; 1172 struct pf_krule *a; 1173 struct pf_krule **am; 1174 struct pf_kruleset **rsm; 1175 struct pf_kruleset *arsm; 1176 struct pf_kruleset *aruleset; 1177 struct pf_state_key *sk; 1178 struct pf_state_key *nk; 1179 struct tcphdr *th; 1180 struct pf_udp_mapping *udp_mapping; 1181 struct pf_kpool *nat_pool; 1182 uint16_t virtual_type; 1183 uint16_t virtual_id; 1184 int depth; 1185 }; 1186 1187 #define PF_ANCHOR_STACK_MAX 32 1188 #endif 1189 1190 /* 1191 * Unified state structures for pulling states out of the kernel 1192 * used by pfsync(4) and the pf(4) ioctl. 1193 */ 1194 struct pfsync_state_key { 1195 struct pf_addr addr[2]; 1196 u_int16_t port[2]; 1197 }; 1198 1199 struct pfsync_state_1301 { 1200 u_int64_t id; 1201 char ifname[IFNAMSIZ]; 1202 struct pfsync_state_key key[2]; 1203 struct pf_state_peer_export src; 1204 struct pf_state_peer_export dst; 1205 struct pf_addr rt_addr; 1206 u_int32_t rule; 1207 u_int32_t anchor; 1208 u_int32_t nat_rule; 1209 u_int32_t creation; 1210 u_int32_t expire; 1211 u_int32_t packets[2][2]; 1212 u_int32_t bytes[2][2]; 1213 u_int32_t creatorid; 1214 sa_family_t af; 1215 u_int8_t proto; 1216 u_int8_t direction; 1217 u_int8_t __spare[2]; 1218 u_int8_t log; 1219 u_int8_t state_flags; 1220 u_int8_t timeout; 1221 u_int8_t sync_flags; 1222 u_int8_t updates; /* unused */ 1223 } __packed; 1224 1225 struct pfsync_state_1400 { 1226 /* The beginning of the struct is compatible with pfsync_state_1301 */ 1227 u_int64_t id; 1228 char ifname[IFNAMSIZ]; 1229 struct pfsync_state_key key[2]; 1230 struct pf_state_peer_export src; 1231 struct pf_state_peer_export dst; 1232 struct pf_addr rt_addr; 1233 u_int32_t rule; 1234 u_int32_t anchor; 1235 u_int32_t nat_rule; 1236 u_int32_t creation; 1237 u_int32_t expire; 1238 u_int32_t packets[2][2]; 1239 u_int32_t bytes[2][2]; 1240 u_int32_t creatorid; 1241 sa_family_t af; 1242 u_int8_t proto; 1243 u_int8_t direction; 1244 u_int16_t state_flags; 1245 u_int8_t log; 1246 u_int8_t __spare; 1247 u_int8_t timeout; 1248 u_int8_t sync_flags; 1249 u_int8_t updates; /* unused */ 1250 /* The rest is not */ 1251 u_int16_t qid; 1252 u_int16_t pqid; 1253 u_int16_t dnpipe; 1254 u_int16_t dnrpipe; 1255 int32_t rtableid; 1256 u_int8_t min_ttl; 1257 u_int8_t set_tos; 1258 u_int16_t max_mss; 1259 u_int8_t set_prio[2]; 1260 u_int8_t rt; 1261 char rt_ifname[IFNAMSIZ]; 1262 } __packed; 1263 1264 struct pfsync_state_1500 { 1265 /* The beginning of the struct is compatible with pfsync_state_1301 */ 1266 u_int64_t id; 1267 char ifname[IFNAMSIZ]; 1268 struct pfsync_state_key key[2]; 1269 struct pf_state_peer_export src; 1270 struct pf_state_peer_export dst; 1271 struct pf_addr rt_addr; 1272 u_int32_t rule; 1273 u_int32_t anchor; 1274 u_int32_t nat_rule; 1275 u_int32_t creation; 1276 u_int32_t expire; 1277 u_int32_t packets[2][2]; 1278 u_int32_t bytes[2][2]; 1279 u_int32_t creatorid; 1280 /* The rest is not, use the opportunity to fix alignment */ 1281 char tagname[PF_TAG_NAME_SIZE]; 1282 char rt_ifname[IFNAMSIZ]; 1283 char orig_ifname[IFNAMSIZ]; 1284 int32_t rtableid; 1285 u_int16_t state_flags; 1286 u_int16_t qid; 1287 u_int16_t pqid; 1288 u_int16_t dnpipe; 1289 u_int16_t dnrpipe; 1290 u_int16_t max_mss; 1291 sa_family_t wire_af; 1292 sa_family_t stack_af; 1293 sa_family_t rt_af; 1294 u_int8_t wire_proto; 1295 u_int8_t stack_proto; 1296 u_int8_t log; 1297 u_int8_t timeout; 1298 u_int8_t direction; 1299 u_int8_t rt; 1300 u_int8_t min_ttl; 1301 u_int8_t set_tos; 1302 u_int8_t set_prio[2]; 1303 u_int8_t spare[3]; /* Improve struct alignment */ 1304 } __packed; 1305 1306 union pfsync_state_union { 1307 struct pfsync_state_1301 pfs_1301; 1308 struct pfsync_state_1400 pfs_1400; 1309 struct pfsync_state_1500 pfs_1500; 1310 } __packed; 1311 1312 #ifdef _KERNEL 1313 /* pfsync */ 1314 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int); 1315 typedef void pfsync_insert_state_t(struct pf_kstate *); 1316 typedef void pfsync_update_state_t(struct pf_kstate *); 1317 typedef void pfsync_delete_state_t(struct pf_kstate *); 1318 typedef void pfsync_clear_states_t(u_int32_t, const char *); 1319 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 1320 typedef void pfsync_detach_ifnet_t(struct ifnet *); 1321 typedef void pflow_export_state_t(const struct pf_kstate *); 1322 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *); 1323 1324 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 1325 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 1326 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 1327 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 1328 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 1329 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 1330 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 1331 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 1332 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 1333 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 1334 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 1335 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 1336 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr); 1337 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr) 1338 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 1339 1340 void pfsync_state_export(union pfsync_state_union *, 1341 struct pf_kstate *, int); 1342 void pf_state_export(struct pf_state_export *, 1343 struct pf_kstate *); 1344 1345 /* pflog */ 1346 struct pf_kruleset; 1347 struct pf_pdesc; 1348 typedef int pflog_packet_t(uint8_t, u_int8_t, 1349 struct pf_krule *, struct pf_krule *, struct pf_kruleset *, 1350 struct pf_pdesc *, int, struct pf_krule *); 1351 extern pflog_packet_t *pflog_packet_ptr; 1352 1353 #endif /* _KERNEL */ 1354 1355 #define PFSYNC_FLAG_SRCNODE 0x04 1356 #define PFSYNC_FLAG_NATSRCNODE 0x08 1357 1358 /* for copies to/from network byte order */ 1359 /* ioctl interface also uses network byte order */ 1360 void pf_state_peer_hton(const struct pf_state_peer *, 1361 struct pf_state_peer_export *); 1362 void pf_state_peer_ntoh(const struct pf_state_peer_export *, 1363 struct pf_state_peer *); 1364 1365 #define pf_state_counter_hton(s,d) do { \ 1366 d[0] = htonl((s>>32)&0xffffffff); \ 1367 d[1] = htonl(s&0xffffffff); \ 1368 } while (0) 1369 1370 #define pf_state_counter_from_pfsync(s) \ 1371 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1372 1373 #define pf_state_counter_ntoh(s,d) do { \ 1374 d = ntohl(s[0]); \ 1375 d = d<<32; \ 1376 d += ntohl(s[1]); \ 1377 } while (0) 1378 1379 TAILQ_HEAD(pf_krulequeue, pf_krule); 1380 1381 struct pf_kanchor; 1382 1383 struct pf_kruleset { 1384 struct { 1385 struct pf_krulequeue queues[2]; 1386 struct { 1387 struct pf_krulequeue *ptr; 1388 u_int32_t rcount; 1389 u_int32_t ticket; 1390 int open; 1391 struct pf_krule_global *tree; 1392 } active, inactive; 1393 } rules[PF_RULESET_MAX]; 1394 struct pf_kanchor *anchor; 1395 u_int32_t tticket; 1396 int tables; 1397 int topen; 1398 }; 1399 1400 RB_HEAD(pf_kanchor_global, pf_kanchor); 1401 RB_HEAD(pf_kanchor_node, pf_kanchor); 1402 struct pf_kanchor { 1403 RB_ENTRY(pf_kanchor) entry_global; 1404 RB_ENTRY(pf_kanchor) entry_node; 1405 struct pf_kanchor *parent; 1406 struct pf_kanchor_node children; 1407 char name[PF_ANCHOR_NAME_SIZE]; 1408 char path[MAXPATHLEN]; 1409 struct pf_kruleset ruleset; 1410 int refcnt; /* anchor rules */ 1411 }; 1412 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1413 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1414 1415 #define PF_RESERVED_ANCHOR "_pf" 1416 1417 #define PFR_TFLAG_PERSIST 0x00000001 1418 #define PFR_TFLAG_CONST 0x00000002 1419 #define PFR_TFLAG_ACTIVE 0x00000004 1420 #define PFR_TFLAG_INACTIVE 0x00000008 1421 #define PFR_TFLAG_REFERENCED 0x00000010 1422 #define PFR_TFLAG_REFDANCHOR 0x00000020 1423 #define PFR_TFLAG_COUNTERS 0x00000040 1424 /* Adjust masks below when adding flags. */ 1425 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1426 PFR_TFLAG_CONST | \ 1427 PFR_TFLAG_COUNTERS) 1428 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1429 PFR_TFLAG_INACTIVE | \ 1430 PFR_TFLAG_REFERENCED | \ 1431 PFR_TFLAG_REFDANCHOR) 1432 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1433 PFR_TFLAG_CONST | \ 1434 PFR_TFLAG_ACTIVE | \ 1435 PFR_TFLAG_INACTIVE | \ 1436 PFR_TFLAG_REFERENCED | \ 1437 PFR_TFLAG_REFDANCHOR | \ 1438 PFR_TFLAG_COUNTERS) 1439 1440 struct pf_keth_anchor_stackframe; 1441 1442 struct pfr_table { 1443 char pfrt_anchor[MAXPATHLEN]; 1444 char pfrt_name[PF_TABLE_NAME_SIZE]; 1445 u_int32_t pfrt_flags; 1446 u_int8_t pfrt_fback; 1447 }; 1448 1449 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1450 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1451 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1452 1453 struct pfr_addr { 1454 union { 1455 struct in_addr _pfra_ip4addr; 1456 struct in6_addr _pfra_ip6addr; 1457 } pfra_u; 1458 u_int8_t pfra_af; 1459 u_int8_t pfra_net; 1460 u_int8_t pfra_not; 1461 u_int8_t pfra_fback; 1462 }; 1463 #define pfra_ip4addr pfra_u._pfra_ip4addr 1464 #define pfra_ip6addr pfra_u._pfra_ip6addr 1465 1466 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1467 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1468 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1469 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1470 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1471 1472 struct pfr_astats { 1473 struct pfr_addr pfras_a; 1474 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1475 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1476 time_t pfras_tzero; 1477 }; 1478 1479 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1480 1481 struct pfr_tstats { 1482 struct pfr_table pfrts_t; 1483 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1484 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1485 u_int64_t pfrts_match; 1486 u_int64_t pfrts_nomatch; 1487 time_t pfrts_tzero; 1488 int pfrts_cnt; 1489 int pfrts_refcnt[PFR_REFCNT_MAX]; 1490 }; 1491 1492 #ifdef _KERNEL 1493 1494 struct pfr_kstate_counter { 1495 counter_u64_t pkc_pcpu; 1496 u_int64_t pkc_zero; 1497 }; 1498 1499 static inline int 1500 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1501 { 1502 1503 pfrc->pkc_zero = 0; 1504 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1505 if (pfrc->pkc_pcpu == NULL) 1506 return (ENOMEM); 1507 return (0); 1508 } 1509 1510 static inline void 1511 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1512 { 1513 1514 counter_u64_free(pfrc->pkc_pcpu); 1515 } 1516 1517 static inline u_int64_t 1518 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1519 { 1520 u_int64_t c; 1521 1522 c = counter_u64_fetch(pfrc->pkc_pcpu); 1523 c -= pfrc->pkc_zero; 1524 return (c); 1525 } 1526 1527 static inline void 1528 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1529 { 1530 u_int64_t c; 1531 1532 c = counter_u64_fetch(pfrc->pkc_pcpu); 1533 pfrc->pkc_zero = c; 1534 } 1535 1536 static inline void 1537 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1538 { 1539 1540 counter_u64_add(pfrc->pkc_pcpu, n); 1541 } 1542 1543 struct pfr_ktstats { 1544 struct pfr_table pfrts_t; 1545 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1546 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1547 struct pfr_kstate_counter pfrkts_match; 1548 struct pfr_kstate_counter pfrkts_nomatch; 1549 time_t pfrkts_tzero; 1550 int pfrkts_cnt; 1551 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1552 }; 1553 1554 #endif /* _KERNEL */ 1555 1556 #define pfrts_name pfrts_t.pfrt_name 1557 #define pfrts_flags pfrts_t.pfrt_flags 1558 1559 #ifndef _SOCKADDR_UNION_DEFINED 1560 #define _SOCKADDR_UNION_DEFINED 1561 union sockaddr_union { 1562 struct sockaddr sa; 1563 struct sockaddr_in sin; 1564 struct sockaddr_in6 sin6; 1565 }; 1566 #endif /* _SOCKADDR_UNION_DEFINED */ 1567 1568 struct pfr_kcounters { 1569 counter_u64_t pfrkc_counters; 1570 time_t pfrkc_tzero; 1571 }; 1572 #define pfr_kentry_counter(kc, dir, op, t) \ 1573 ((kc)->pfrkc_counters + \ 1574 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1575 1576 #ifdef _KERNEL 1577 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1578 struct pfr_kentry { 1579 struct radix_node pfrke_node[2]; 1580 union sockaddr_union pfrke_sa; 1581 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1582 struct pfr_kcounters pfrke_counters; 1583 u_int8_t pfrke_af; 1584 u_int8_t pfrke_net; 1585 u_int8_t pfrke_not; 1586 u_int8_t pfrke_mark; 1587 }; 1588 1589 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1590 RB_HEAD(pfr_ktablehead, pfr_ktable); 1591 struct pfr_ktable { 1592 struct pfr_ktstats pfrkt_kts; 1593 RB_ENTRY(pfr_ktable) pfrkt_tree; 1594 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1595 struct radix_node_head *pfrkt_ip4; 1596 struct radix_node_head *pfrkt_ip6; 1597 struct pfr_ktable *pfrkt_shadow; 1598 struct pfr_ktable *pfrkt_root; 1599 struct pf_kruleset *pfrkt_rs; 1600 long pfrkt_larg; 1601 int pfrkt_nflags; 1602 }; 1603 #define pfrkt_t pfrkt_kts.pfrts_t 1604 #define pfrkt_name pfrkt_t.pfrt_name 1605 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1606 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1607 #define pfrkt_flags pfrkt_t.pfrt_flags 1608 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1609 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1610 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1611 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1612 #define pfrkt_match pfrkt_kts.pfrkts_match 1613 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1614 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1615 #endif 1616 1617 #ifdef _KERNEL 1618 struct pfi_kkif { 1619 char pfik_name[IFNAMSIZ]; 1620 union { 1621 RB_ENTRY(pfi_kkif) _pfik_tree; 1622 LIST_ENTRY(pfi_kkif) _pfik_list; 1623 } _pfik_glue; 1624 #define pfik_tree _pfik_glue._pfik_tree 1625 #define pfik_list _pfik_glue._pfik_list 1626 struct pf_counter_u64 pfik_packets[2][2][2]; 1627 struct pf_counter_u64 pfik_bytes[2][2][2]; 1628 time_t pfik_tzero; 1629 u_int pfik_flags; 1630 struct ifnet *pfik_ifp; 1631 struct ifg_group *pfik_group; 1632 u_int pfik_rulerefs; 1633 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1634 #ifdef PF_WANT_32_TO_64_COUNTER 1635 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1636 #endif 1637 }; 1638 #endif 1639 1640 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1641 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1642 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */ 1643 1644 #ifdef _KERNEL 1645 struct pf_sctp_multihome_job; 1646 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job); 1647 1648 struct pf_pdesc { 1649 struct { 1650 int done; 1651 uid_t uid; 1652 gid_t gid; 1653 } lookup; 1654 u_int64_t tot_len; /* Make Mickey money */ 1655 union pf_headers { 1656 struct tcphdr tcp; 1657 struct udphdr udp; 1658 struct sctphdr sctp; 1659 struct icmp icmp; 1660 #ifdef INET6 1661 struct icmp6_hdr icmp6; 1662 #endif /* INET6 */ 1663 char any[0]; 1664 } hdr; 1665 1666 struct pf_addr nsaddr; /* src address after NAT */ 1667 struct pf_addr ndaddr; /* dst address after NAT */ 1668 1669 struct pfi_kkif *kif; /* incomming interface */ 1670 struct mbuf *m; 1671 1672 struct pf_addr *src; /* src address */ 1673 struct pf_addr *dst; /* dst address */ 1674 struct pf_addr osrc; 1675 struct pf_addr odst; 1676 u_int16_t *pcksum; /* proto cksum */ 1677 u_int16_t *sport; 1678 u_int16_t *dport; 1679 u_int16_t osport; 1680 u_int16_t odport; 1681 u_int16_t nsport; /* src port after NAT */ 1682 u_int16_t ndport; /* dst port after NAT */ 1683 struct pf_mtag *pf_mtag; 1684 struct pf_rule_actions act; 1685 1686 u_int32_t off; /* protocol header offset */ 1687 bool df; /* IPv4 Don't fragment flag. */ 1688 u_int32_t hdrlen; /* protocol header length */ 1689 u_int32_t p_len; /* total length of protocol payload */ 1690 u_int32_t extoff; /* extentsion header offset */ 1691 u_int32_t fragoff; /* fragment header offset */ 1692 u_int32_t jumbolen; /* length from v6 jumbo header */ 1693 u_int32_t badopts; /* v4 options or v6 routing headers */ 1694 #define PF_OPT_OTHER 0x0001 1695 #define PF_OPT_JUMBO 0x0002 1696 #define PF_OPT_ROUTER_ALERT 0x0004 1697 1698 u_int16_t *ip_sum; 1699 u_int16_t flags; /* Let SCRUB trigger behavior in 1700 * state code. Easier than tags */ 1701 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1702 u_int16_t virtual_proto; 1703 #define PF_VPROTO_FRAGMENT 256 1704 sa_family_t af; 1705 sa_family_t naf; 1706 u_int8_t proto; 1707 u_int8_t tos; 1708 u_int8_t ttl; 1709 u_int8_t dir; /* direction */ 1710 u_int8_t sidx; /* key index for source */ 1711 u_int8_t didx; /* key index for destination */ 1712 #define PFDESC_SCTP_INIT 0x0001 1713 #define PFDESC_SCTP_INIT_ACK 0x0002 1714 #define PFDESC_SCTP_COOKIE 0x0004 1715 #define PFDESC_SCTP_COOKIE_ACK 0x0008 1716 #define PFDESC_SCTP_ABORT 0x0010 1717 #define PFDESC_SCTP_SHUTDOWN 0x0020 1718 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040 1719 #define PFDESC_SCTP_DATA 0x0080 1720 #define PFDESC_SCTP_ASCONF 0x0100 1721 #define PFDESC_SCTP_HEARTBEAT 0x0200 1722 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400 1723 #define PFDESC_SCTP_OTHER 0x0800 1724 #define PFDESC_SCTP_ADD_IP 0x1000 1725 u_int16_t sctp_flags; 1726 u_int32_t sctp_initiate_tag; 1727 u_int16_t sctp_dummy_sum; 1728 struct pf_krule *related_rule; 1729 1730 struct pf_sctp_multihome_jobs sctp_multihome_jobs; 1731 }; 1732 1733 struct pf_sctp_multihome_job { 1734 TAILQ_ENTRY(pf_sctp_multihome_job) next; 1735 struct pf_pdesc pd; 1736 struct pf_addr src; 1737 struct pf_addr dst; 1738 int op; 1739 }; 1740 1741 #endif 1742 1743 /* flags for RDR options */ 1744 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1745 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1746 1747 /* UDP state enumeration */ 1748 #define PFUDPS_NO_TRAFFIC 0 1749 #define PFUDPS_SINGLE 1 1750 #define PFUDPS_MULTIPLE 2 1751 1752 #define PFUDPS_NSTATES 3 /* number of state levels */ 1753 1754 #define PFUDPS_NAMES { \ 1755 "NO_TRAFFIC", \ 1756 "SINGLE", \ 1757 "MULTIPLE", \ 1758 NULL \ 1759 } 1760 1761 /* Other protocol state enumeration */ 1762 #define PFOTHERS_NO_TRAFFIC 0 1763 #define PFOTHERS_SINGLE 1 1764 #define PFOTHERS_MULTIPLE 2 1765 1766 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1767 1768 #define PFOTHERS_NAMES { \ 1769 "NO_TRAFFIC", \ 1770 "SINGLE", \ 1771 "MULTIPLE", \ 1772 NULL \ 1773 } 1774 1775 #define ACTION_SET(a, x) \ 1776 do { \ 1777 if ((a) != NULL) \ 1778 *(a) = (x); \ 1779 } while (0) 1780 1781 #define REASON_SET(a, x) \ 1782 do { \ 1783 SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \ 1784 if ((a) != NULL) \ 1785 *(a) = (x); \ 1786 if (x < PFRES_MAX) \ 1787 counter_u64_add(V_pf_status.counters[x], 1); \ 1788 } while (0) 1789 1790 enum pf_syncookies_mode { 1791 PF_SYNCOOKIES_NEVER = 0, 1792 PF_SYNCOOKIES_ALWAYS = 1, 1793 PF_SYNCOOKIES_ADAPTIVE = 2, 1794 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1795 }; 1796 1797 #define PF_SYNCOOKIES_HIWATPCT 25 1798 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1799 1800 #ifdef _KERNEL 1801 struct pf_kstatus { 1802 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1803 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1804 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1805 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1806 counter_u64_t ncounters[NCNT_MAX]; 1807 uint32_t states; 1808 uint32_t src_nodes; 1809 uint32_t running; 1810 uint32_t since; 1811 uint32_t debug; 1812 uint32_t hostid; 1813 char ifname[IFNAMSIZ]; 1814 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1815 bool keep_counters; 1816 enum pf_syncookies_mode syncookies_mode; 1817 bool syncookies_active; 1818 uint64_t syncookies_inflight[2]; 1819 uint32_t states_halfopen; 1820 uint32_t reass; 1821 }; 1822 #endif 1823 1824 struct pf_divert { 1825 union { 1826 struct in_addr ipv4; 1827 struct in6_addr ipv6; 1828 } addr; 1829 u_int16_t port; 1830 }; 1831 1832 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1833 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1834 1835 struct pf_fragment_tag { 1836 uint16_t ft_hdrlen; /* header length of reassembled pkt */ 1837 uint16_t ft_extoff; /* last extension header offset or 0 */ 1838 uint16_t ft_maxlen; /* maximum fragment payload length */ 1839 uint32_t ft_id; /* fragment id */ 1840 }; 1841 1842 /* 1843 * Limit the length of the fragment queue traversal. Remember 1844 * search entry points based on the fragment offset. 1845 */ 1846 #define PF_FRAG_ENTRY_POINTS 16 1847 1848 /* 1849 * The number of entries in the fragment queue must be limited 1850 * to avoid DoS by linear searching. Instead of a global limit, 1851 * use a limit per entry point. For large packets these sum up. 1852 */ 1853 #define PF_FRAG_ENTRY_LIMIT 64 1854 1855 /* 1856 * ioctl parameter structures 1857 */ 1858 1859 struct pfioc_pooladdr { 1860 u_int32_t action; 1861 u_int32_t ticket; 1862 u_int32_t nr; 1863 u_int32_t r_num; 1864 u_int8_t r_action; 1865 u_int8_t r_last; 1866 u_int8_t af; 1867 char anchor[MAXPATHLEN]; 1868 struct pf_pooladdr addr; 1869 }; 1870 1871 struct pfioc_rule { 1872 u_int32_t action; 1873 u_int32_t ticket; 1874 u_int32_t pool_ticket; 1875 u_int32_t nr; 1876 char anchor[MAXPATHLEN]; 1877 char anchor_call[MAXPATHLEN]; 1878 struct pf_rule rule; 1879 }; 1880 1881 struct pfioc_natlook { 1882 struct pf_addr saddr; 1883 struct pf_addr daddr; 1884 struct pf_addr rsaddr; 1885 struct pf_addr rdaddr; 1886 u_int16_t sport; 1887 u_int16_t dport; 1888 u_int16_t rsport; 1889 u_int16_t rdport; 1890 sa_family_t af; 1891 u_int8_t proto; 1892 u_int8_t direction; 1893 }; 1894 1895 struct pfioc_state { 1896 struct pfsync_state_1301 state; 1897 }; 1898 1899 struct pfioc_src_node_kill { 1900 sa_family_t psnk_af; 1901 struct pf_rule_addr psnk_src; 1902 struct pf_rule_addr psnk_dst; 1903 u_int psnk_killed; 1904 }; 1905 1906 #ifdef _KERNEL 1907 struct pf_kstate_kill { 1908 struct pf_state_cmp psk_pfcmp; 1909 sa_family_t psk_af; 1910 int psk_proto; 1911 struct pf_rule_addr psk_src; 1912 struct pf_rule_addr psk_dst; 1913 struct pf_rule_addr psk_rt_addr; 1914 char psk_ifname[IFNAMSIZ]; 1915 char psk_label[PF_RULE_LABEL_SIZE]; 1916 u_int psk_killed; 1917 bool psk_kill_match; 1918 bool psk_nat; 1919 }; 1920 #endif 1921 1922 struct pfioc_state_kill { 1923 struct pf_state_cmp psk_pfcmp; 1924 sa_family_t psk_af; 1925 int psk_proto; 1926 struct pf_rule_addr psk_src; 1927 struct pf_rule_addr psk_dst; 1928 char psk_ifname[IFNAMSIZ]; 1929 char psk_label[PF_RULE_LABEL_SIZE]; 1930 u_int psk_killed; 1931 }; 1932 1933 struct pfioc_states { 1934 int ps_len; 1935 union { 1936 void *ps_buf; 1937 struct pfsync_state_1301 *ps_states; 1938 }; 1939 }; 1940 1941 struct pfioc_states_v2 { 1942 int ps_len; 1943 uint64_t ps_req_version; 1944 union { 1945 void *ps_buf; 1946 struct pf_state_export *ps_states; 1947 }; 1948 }; 1949 1950 struct pfioc_src_nodes { 1951 int psn_len; 1952 union { 1953 void *psn_buf; 1954 struct pf_src_node *psn_src_nodes; 1955 }; 1956 }; 1957 1958 struct pfioc_if { 1959 char ifname[IFNAMSIZ]; 1960 }; 1961 1962 struct pfioc_tm { 1963 int timeout; 1964 int seconds; 1965 }; 1966 1967 struct pfioc_limit { 1968 int index; 1969 unsigned limit; 1970 }; 1971 1972 struct pfioc_altq_v0 { 1973 u_int32_t action; 1974 u_int32_t ticket; 1975 u_int32_t nr; 1976 struct pf_altq_v0 altq; 1977 }; 1978 1979 struct pfioc_altq_v1 { 1980 u_int32_t action; 1981 u_int32_t ticket; 1982 u_int32_t nr; 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; 1988 struct pf_altq_v1 altq; 1989 }; 1990 1991 /* 1992 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1993 * the latest version of struct pf_altq_vX as it has that struct as a 1994 * member. 1995 */ 1996 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1997 1998 struct pfioc_qstats_v0 { 1999 u_int32_t ticket; 2000 u_int32_t nr; 2001 void *buf; 2002 int nbytes; 2003 u_int8_t scheduler; 2004 }; 2005 2006 struct pfioc_qstats_v1 { 2007 u_int32_t ticket; 2008 u_int32_t nr; 2009 void *buf; 2010 int nbytes; 2011 u_int8_t scheduler; 2012 /* 2013 * Placed here so code that only uses the above parameters can be 2014 * written entirely in terms of the v0 or v1 type. 2015 */ 2016 u_int32_t version; /* Requested version of stats struct */ 2017 }; 2018 2019 /* Latest version of struct pfioc_qstats_vX */ 2020 #define PFIOC_QSTATS_VERSION 1 2021 2022 struct pfioc_ruleset { 2023 u_int32_t nr; 2024 char path[MAXPATHLEN]; 2025 char name[PF_ANCHOR_NAME_SIZE]; 2026 }; 2027 2028 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 2029 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 2030 #define PF_RULESET_ETH (PF_RULESET_MAX+2) 2031 struct pfioc_trans { 2032 int size; /* number of elements */ 2033 int esize; /* size of each element in bytes */ 2034 struct pfioc_trans_e { 2035 int rs_num; 2036 char anchor[MAXPATHLEN]; 2037 u_int32_t ticket; 2038 } *array; 2039 }; 2040 2041 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 2042 #define PFR_FLAG_DUMMY 0x00000002 2043 #define PFR_FLAG_FEEDBACK 0x00000004 2044 #define PFR_FLAG_CLSTATS 0x00000008 2045 #define PFR_FLAG_ADDRSTOO 0x00000010 2046 #define PFR_FLAG_REPLACE 0x00000020 2047 #define PFR_FLAG_ALLRSETS 0x00000040 2048 #define PFR_FLAG_ALLMASK 0x0000007F 2049 #ifdef _KERNEL 2050 #define PFR_FLAG_USERIOCTL 0x10000000 2051 #endif 2052 2053 struct pfioc_table { 2054 struct pfr_table pfrio_table; 2055 void *pfrio_buffer; 2056 int pfrio_esize; 2057 int pfrio_size; 2058 int pfrio_size2; 2059 int pfrio_nadd; 2060 int pfrio_ndel; 2061 int pfrio_nchange; 2062 int pfrio_flags; 2063 u_int32_t pfrio_ticket; 2064 }; 2065 #define pfrio_exists pfrio_nadd 2066 #define pfrio_nzero pfrio_nadd 2067 #define pfrio_nmatch pfrio_nadd 2068 #define pfrio_naddr pfrio_size2 2069 #define pfrio_setflag pfrio_size2 2070 #define pfrio_clrflag pfrio_nadd 2071 2072 struct pfioc_iface { 2073 char pfiio_name[IFNAMSIZ]; 2074 void *pfiio_buffer; 2075 int pfiio_esize; 2076 int pfiio_size; 2077 int pfiio_nzero; 2078 int pfiio_flags; 2079 }; 2080 2081 /* 2082 * ioctl operations 2083 */ 2084 2085 #define DIOCSTART _IO ('D', 1) 2086 #define DIOCSTOP _IO ('D', 2) 2087 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2088 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 2089 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2090 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 2091 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 2092 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2093 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 2094 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2095 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv) 2096 #define DIOCCLRSTATUS _IO ('D', 22) 2097 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2098 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2099 #ifdef COMPAT_FREEBSD14 2100 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2101 #endif 2102 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2103 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2104 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2105 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2106 #define DIOCCLRRULECTRS _IO ('D', 38) 2107 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2108 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2109 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 2110 #define DIOCSTARTALTQ _IO ('D', 42) 2111 #define DIOCSTOPALTQ _IO ('D', 43) 2112 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 2113 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 2114 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 2115 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 2116 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 2117 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 2118 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 2119 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 2120 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 2121 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 2122 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2123 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2124 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2125 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2126 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2127 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2128 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2129 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2130 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2131 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2132 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2133 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2134 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2135 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2136 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2137 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2138 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2139 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2140 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2141 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2142 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2143 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2144 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2145 #define DIOCOSFPFLUSH _IO('D', 78) 2146 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2147 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2148 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2149 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2150 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2151 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2152 #define DIOCCLRSRCNODES _IO('D', 85) 2153 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2154 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2155 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2156 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2157 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2158 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 2159 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 2160 #ifdef COMPAT_FREEBSD14 2161 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2) 2162 #endif 2163 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv) 2164 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv) 2165 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv) 2166 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv) 2167 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv) 2168 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv) 2169 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv) 2170 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv) 2171 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv) 2172 #define DIOCSETREASS _IOWR('D', 102, u_int32_t) 2173 2174 struct pf_ifspeed_v0 { 2175 char ifname[IFNAMSIZ]; 2176 u_int32_t baudrate; 2177 }; 2178 2179 struct pf_ifspeed_v1 { 2180 char ifname[IFNAMSIZ]; 2181 u_int32_t baudrate32; 2182 /* layout identical to struct pf_ifspeed_v0 up to this point */ 2183 u_int64_t baudrate; 2184 }; 2185 2186 /* Latest version of struct pf_ifspeed_vX */ 2187 #define PF_IFSPEED_VERSION 1 2188 2189 /* 2190 * Compatibility and convenience macros 2191 */ 2192 #ifndef _KERNEL 2193 #ifdef PFIOC_USE_LATEST 2194 /* 2195 * Maintaining in-tree consumers of the ioctl interface is easier when that 2196 * code can be written in terms old names that refer to the latest interface 2197 * version as that reduces the required changes in the consumers to those 2198 * that are functionally necessary to accommodate a new interface version. 2199 */ 2200 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 2201 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 2202 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 2203 2204 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 2205 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 2206 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 2207 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 2208 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 2209 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 2210 #else 2211 /* 2212 * When building out-of-tree code that is written for the old interface, 2213 * such as may exist in ports for example, resolve the old struct tags and 2214 * ioctl command names to the v0 versions. 2215 */ 2216 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 2217 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 2218 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 2219 2220 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 2221 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 2222 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 2223 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 2224 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 2225 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 2226 #endif /* PFIOC_USE_LATEST */ 2227 #endif /* _KERNEL */ 2228 2229 #ifdef _KERNEL 2230 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 2231 struct pf_srchash { 2232 struct pf_ksrc_node_list nodes; 2233 struct mtx lock; 2234 }; 2235 2236 struct pf_keyhash { 2237 LIST_HEAD(, pf_state_key) keys; 2238 struct mtx lock; 2239 }; 2240 2241 struct pf_idhash { 2242 LIST_HEAD(, pf_kstate) states; 2243 struct mtx lock; 2244 }; 2245 2246 struct pf_udpendpointhash { 2247 LIST_HEAD(, pf_udp_endpoint) endpoints; 2248 /* refcont is synchronized on the source endpoint's row lock */ 2249 struct mtx lock; 2250 }; 2251 2252 extern u_long pf_ioctl_maxcount; 2253 VNET_DECLARE(u_long, pf_hashmask); 2254 #define V_pf_hashmask VNET(pf_hashmask) 2255 VNET_DECLARE(u_long, pf_srchashmask); 2256 #define V_pf_srchashmask VNET(pf_srchashmask) 2257 VNET_DECLARE(u_long, pf_udpendpointhashmask); 2258 #define V_pf_udpendpointhashmask VNET(pf_udpendpointhashmask) 2259 #define PF_HASHSIZ (131072) 2260 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 2261 #define PF_UDPENDHASHSIZ (PF_HASHSIZ/4) 2262 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 2263 VNET_DECLARE(struct pf_idhash *, pf_idhash); 2264 VNET_DECLARE(struct pf_udpendpointhash *, pf_udpendpointhash); 2265 #define V_pf_keyhash VNET(pf_keyhash) 2266 #define V_pf_idhash VNET(pf_idhash) 2267 #define V_pf_udpendpointhash VNET(pf_udpendpointhash) 2268 VNET_DECLARE(struct pf_srchash *, pf_srchash); 2269 #define V_pf_srchash VNET(pf_srchash) 2270 2271 #define PF_IDHASHID(id) (be64toh(id) % (V_pf_hashmask + 1)) 2272 #define PF_IDHASH(s) PF_IDHASHID((s)->id) 2273 2274 VNET_DECLARE(void *, pf_swi_cookie); 2275 #define V_pf_swi_cookie VNET(pf_swi_cookie) 2276 VNET_DECLARE(struct intr_event *, pf_swi_ie); 2277 #define V_pf_swi_ie VNET(pf_swi_ie) 2278 2279 VNET_DECLARE(struct unrhdr64, pf_stateid); 2280 #define V_pf_stateid VNET(pf_stateid) 2281 2282 TAILQ_HEAD(pf_altqqueue, pf_altq); 2283 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 2284 #define V_pf_altqs VNET(pf_altqs) 2285 VNET_DECLARE(struct pf_kpalist, pf_pabuf[3]); 2286 #define V_pf_pabuf VNET(pf_pabuf) 2287 2288 VNET_DECLARE(u_int32_t, ticket_altqs_active); 2289 #define V_ticket_altqs_active VNET(ticket_altqs_active) 2290 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 2291 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 2292 VNET_DECLARE(int, altqs_inactive_open); 2293 #define V_altqs_inactive_open VNET(altqs_inactive_open) 2294 VNET_DECLARE(u_int32_t, ticket_pabuf); 2295 #define V_ticket_pabuf VNET(ticket_pabuf) 2296 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 2297 #define V_pf_altqs_active VNET(pf_altqs_active) 2298 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 2299 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 2300 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 2301 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 2302 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 2303 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 2304 2305 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 2306 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 2307 2308 #ifdef PF_WANT_32_TO_64_COUNTER 2309 LIST_HEAD(allkiflist_head, pfi_kkif); 2310 VNET_DECLARE(struct allkiflist_head, pf_allkiflist); 2311 #define V_pf_allkiflist VNET(pf_allkiflist) 2312 VNET_DECLARE(size_t, pf_allkifcount); 2313 #define V_pf_allkifcount VNET(pf_allkifcount) 2314 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker); 2315 #define V_pf_kifmarker VNET(pf_kifmarker) 2316 2317 LIST_HEAD(allrulelist_head, pf_krule); 2318 VNET_DECLARE(struct allrulelist_head, pf_allrulelist); 2319 #define V_pf_allrulelist VNET(pf_allrulelist) 2320 VNET_DECLARE(size_t, pf_allrulecount); 2321 #define V_pf_allrulecount VNET(pf_allrulecount) 2322 VNET_DECLARE(struct pf_krule *, pf_rulemarker); 2323 #define V_pf_rulemarker VNET(pf_rulemarker) 2324 #endif 2325 2326 int pf_start(void); 2327 int pf_stop(void); 2328 void pf_initialize(void); 2329 void pf_mtag_initialize(void); 2330 void pf_mtag_cleanup(void); 2331 void pf_cleanup(void); 2332 2333 struct pf_mtag *pf_get_mtag(struct mbuf *); 2334 2335 extern void pf_calc_skip_steps(struct pf_krulequeue *); 2336 #ifdef ALTQ 2337 extern void pf_altq_ifnet_event(struct ifnet *, int); 2338 #endif 2339 VNET_DECLARE(uma_zone_t, pf_state_z); 2340 #define V_pf_state_z VNET(pf_state_z) 2341 VNET_DECLARE(uma_zone_t, pf_state_key_z); 2342 #define V_pf_state_key_z VNET(pf_state_key_z) 2343 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z); 2344 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z) 2345 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 2346 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 2347 VNET_DECLARE(uma_zone_t, pf_anchor_z); 2348 #define V_pf_anchor_z VNET(pf_anchor_z) 2349 VNET_DECLARE(uma_zone_t, pf_eth_anchor_z); 2350 #define V_pf_eth_anchor_z VNET(pf_eth_anchor_z) 2351 2352 extern void pf_purge_thread(void *); 2353 extern void pf_unload_vnet_purge(void); 2354 extern void pf_intr(void *); 2355 extern void pf_purge_expired_src_nodes(void); 2356 2357 extern int pf_remove_state(struct pf_kstate *); 2358 extern int pf_state_insert(struct pfi_kkif *, 2359 struct pfi_kkif *, 2360 struct pf_state_key *, 2361 struct pf_state_key *, 2362 struct pf_kstate *); 2363 extern struct pf_kstate *pf_alloc_state(int); 2364 extern void pf_free_state(struct pf_kstate *); 2365 extern void pf_killstates(struct pf_kstate_kill *, 2366 unsigned int *); 2367 extern unsigned int pf_clear_states(const struct pf_kstate_kill *); 2368 2369 static __inline void 2370 pf_ref_state(struct pf_kstate *s) 2371 { 2372 2373 refcount_acquire(&s->refs); 2374 } 2375 2376 static __inline int 2377 pf_release_state(struct pf_kstate *s) 2378 { 2379 2380 if (refcount_release(&s->refs)) { 2381 pf_free_state(s); 2382 return (1); 2383 } else 2384 return (0); 2385 } 2386 2387 static __inline int 2388 pf_release_staten(struct pf_kstate *s, u_int n) 2389 { 2390 2391 if (refcount_releasen(&s->refs, n)) { 2392 pf_free_state(s); 2393 return (1); 2394 } else 2395 return (0); 2396 } 2397 2398 static __inline uint64_t 2399 pf_get_uptime(void) 2400 { 2401 struct timeval t; 2402 microuptime(&t); 2403 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2404 } 2405 2406 static __inline uint64_t 2407 pf_get_time(void) 2408 { 2409 struct timeval t; 2410 microtime(&t); 2411 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2412 } 2413 2414 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 2415 extern struct pf_kstate *pf_find_state_all( 2416 const struct pf_state_key_cmp *, 2417 u_int, int *); 2418 extern bool pf_find_state_all_exists( 2419 const struct pf_state_key_cmp *, 2420 u_int); 2421 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp 2422 *endpoint); 2423 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af, 2424 struct pf_addr *src_addr, uint16_t src_port, 2425 struct pf_addr *nat_addr, uint16_t nat_port); 2426 extern int pf_udp_mapping_insert(struct pf_udp_mapping 2427 *mapping); 2428 extern void pf_udp_mapping_release(struct pf_udp_mapping 2429 *mapping); 2430 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t); 2431 extern bool pf_src_node_exists(struct pf_ksrc_node **, 2432 struct pf_srchash *); 2433 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 2434 struct pf_krule *, sa_family_t, 2435 struct pf_srchash **, pf_sn_types_t, bool); 2436 extern void pf_unlink_src_node(struct pf_ksrc_node *); 2437 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 2438 extern void pf_print_state(struct pf_kstate *); 2439 extern void pf_print_flags(uint16_t); 2440 extern int pf_addr_wrap_neq(struct pf_addr_wrap *, 2441 struct pf_addr_wrap *); 2442 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2443 u_int8_t); 2444 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 2445 u_int16_t, u_int16_t, u_int8_t); 2446 2447 VNET_DECLARE(struct pf_krule, pf_default_rule); 2448 #define V_pf_default_rule VNET(pf_default_rule) 2449 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *, 2450 sa_family_t); 2451 void pf_free_rule(struct pf_krule *); 2452 2453 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 2454 int pf_scan_sctp(struct pf_pdesc *); 2455 #if defined(INET) || defined(INET6) 2456 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *, 2457 struct pf_rule_actions *); 2458 #endif 2459 #ifdef INET 2460 int pf_normalize_ip(u_short *, struct pf_pdesc *); 2461 #endif /* INET */ 2462 2463 void pf_poolmask(struct pf_addr *, struct pf_addr*, 2464 struct pf_addr *, struct pf_addr *, sa_family_t); 2465 void pf_addr_inc(struct pf_addr *, sa_family_t); 2466 #ifdef INET6 2467 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *); 2468 int pf_max_frag_size(struct mbuf *); 2469 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, 2470 struct ifnet *, bool); 2471 #endif /* INET6 */ 2472 2473 int pf_multihome_scan_init(int, int, struct pf_pdesc *); 2474 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *); 2475 2476 u_int32_t pf_new_isn(struct pf_kstate *); 2477 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, 2478 sa_family_t); 2479 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2480 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2481 u_int8_t); 2482 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2483 int pf_patch_16(struct pf_pdesc *, void *, u_int16_t, bool); 2484 int pf_patch_32(struct pf_pdesc *, void *, u_int32_t, bool); 2485 void pf_send_deferred_syn(struct pf_kstate *); 2486 int pf_match_addr(u_int8_t, const struct pf_addr *, 2487 const struct pf_addr *, const struct pf_addr *, sa_family_t); 2488 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *, 2489 const struct pf_addr *, sa_family_t); 2490 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2491 2492 void pf_normalize_init(void); 2493 void pf_normalize_cleanup(void); 2494 uint64_t pf_normalize_get_frag_count(void); 2495 int pf_normalize_tcp(struct pf_pdesc *); 2496 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2497 int pf_normalize_tcp_init(struct pf_pdesc *, 2498 struct tcphdr *, struct pf_state_peer *); 2499 int pf_normalize_tcp_stateful(struct pf_pdesc *, 2500 u_short *, struct tcphdr *, struct pf_kstate *, 2501 struct pf_state_peer *, struct pf_state_peer *, int *); 2502 int pf_normalize_sctp_init(struct pf_pdesc *, 2503 struct pf_state_peer *, struct pf_state_peer *); 2504 int pf_normalize_sctp(struct pf_pdesc *); 2505 u_int32_t 2506 pf_state_expires(const struct pf_kstate *); 2507 void pf_purge_expired_fragments(void); 2508 void pf_purge_fragments(uint32_t); 2509 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2510 int); 2511 int pf_socket_lookup(struct pf_pdesc *); 2512 struct pf_state_key *pf_alloc_state_key(int); 2513 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t, 2514 struct pf_addr *, u_int16_t, u_int16_t, int); 2515 int pf_translate_af(struct pf_pdesc *); 2516 bool pf_init_threshold(struct pf_kthreshold *, uint32_t, uint32_t); 2517 uint16_t pf_tagname2tag(const char *); 2518 #ifdef ALTQ 2519 uint16_t pf_qname2qid(const char *, bool); 2520 #endif /* ALTQ */ 2521 2522 void pfr_initialize(void); 2523 void pfr_cleanup(void); 2524 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2525 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2526 u_int64_t, int, int, int); 2527 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t, 2528 pf_addr_filter_func_t, bool); 2529 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2530 struct pfr_ktable * 2531 pfr_attach_table(struct pf_kruleset *, char *); 2532 struct pfr_ktable * 2533 pfr_eth_attach_table(struct pf_keth_ruleset *, char *); 2534 void pfr_detach_table(struct pfr_ktable *); 2535 int pfr_clr_tables(struct pfr_table *, int *, int); 2536 int pfr_add_tables(struct pfr_table *, int, int *, int); 2537 int pfr_del_tables(struct pfr_table *, int, int *, int); 2538 int pfr_table_count(struct pfr_table *, int); 2539 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2540 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2541 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2542 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2543 int pfr_clr_addrs(struct pfr_table *, int *, int); 2544 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, time_t); 2545 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2546 int); 2547 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2548 int); 2549 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2550 int *, int *, int *, int, u_int32_t); 2551 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2552 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2553 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2554 int); 2555 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2556 int); 2557 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2558 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2559 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2560 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2561 int *, u_int32_t, int); 2562 struct pfr_ktable 2563 *pfr_ktable_select_active(struct pfr_ktable *); 2564 2565 MALLOC_DECLARE(PFI_MTYPE); 2566 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2567 #define V_pfi_all VNET(pfi_all) 2568 2569 void pfi_initialize(void); 2570 void pfi_initialize_vnet(void); 2571 void pfi_cleanup(void); 2572 void pfi_cleanup_vnet(void); 2573 void pfi_kkif_ref(struct pfi_kkif *); 2574 void pfi_kkif_unref(struct pfi_kkif *); 2575 struct pfi_kkif *pfi_kkif_find(const char *); 2576 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2577 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2578 void pfi_kkif_purge(void); 2579 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2580 sa_family_t); 2581 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2582 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2583 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2584 void pfi_update_status(const char *, struct pf_status *); 2585 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2586 int pfi_set_flags(const char *, int); 2587 int pfi_clear_flags(const char *, int); 2588 2589 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2590 int pf_tag_packet(struct pf_pdesc *, int); 2591 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2592 sa_family_t); 2593 2594 uint8_t* pf_find_tcpopt(u_int8_t *, u_int8_t *, size_t, 2595 u_int8_t, u_int8_t); 2596 u_int16_t pf_get_mss(struct pf_pdesc *); 2597 u_int8_t pf_get_wscale(struct pf_pdesc *); 2598 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2599 const struct pf_addr *, const struct pf_addr *, 2600 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2601 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2602 u_int16_t, u_int16_t, u_int, int, u_short *); 2603 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2604 const struct pf_addr *, const struct pf_addr *, 2605 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2606 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2607 u_int16_t, u_int16_t, int, u_short *); 2608 2609 void pf_syncookies_init(void); 2610 void pf_syncookies_cleanup(void); 2611 int pf_get_syncookies(struct pfioc_nv *); 2612 int pf_set_syncookies(struct pfioc_nv *); 2613 int pf_synflood_check(struct pf_pdesc *); 2614 void pf_syncookie_send(struct pf_pdesc *, u_short *); 2615 bool pf_syncookie_check(struct pf_pdesc *); 2616 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2617 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *, 2618 u_short *); 2619 2620 VNET_DECLARE(struct pf_kstatus, pf_status); 2621 #define V_pf_status VNET(pf_status) 2622 2623 struct pf_limit { 2624 uma_zone_t zone; 2625 u_int limit; 2626 }; 2627 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2628 #define V_pf_limits VNET(pf_limits) 2629 2630 #endif /* _KERNEL */ 2631 2632 #ifdef _KERNEL 2633 struct pf_nl_pooladdr { 2634 u_int32_t action; 2635 u_int32_t ticket; 2636 u_int32_t nr; 2637 u_int32_t r_num; 2638 u_int8_t r_action; 2639 u_int8_t r_last; 2640 u_int8_t af; 2641 char anchor[MAXPATHLEN]; 2642 struct pf_pooladdr addr; 2643 /* Above this is identical to pfioc_pooladdr */ 2644 int which; 2645 }; 2646 2647 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2648 #define V_pf_anchors VNET(pf_anchors) 2649 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2650 #define V_pf_main_anchor VNET(pf_main_anchor) 2651 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors); 2652 #define V_pf_keth_anchors VNET(pf_keth_anchors) 2653 #define pf_main_ruleset V_pf_main_anchor.ruleset 2654 2655 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor); 2656 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor) 2657 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth); 2658 #define V_pf_keth VNET(pf_keth) 2659 2660 void pf_init_kruleset(struct pf_kruleset *); 2661 void pf_init_keth(struct pf_keth_ruleset *); 2662 int pf_kanchor_setup(struct pf_krule *, 2663 const struct pf_kruleset *, const char *); 2664 int pf_kanchor_copyout(const struct pf_kruleset *, 2665 const struct pf_krule *, char *, size_t); 2666 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2667 const struct pf_krule *, nvlist_t *); 2668 void pf_remove_kanchor(struct pf_krule *); 2669 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2670 struct pf_kruleset *pf_find_kruleset(const char *); 2671 struct pf_kruleset *pf_get_leaf_kruleset(char *, char **); 2672 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2673 void pf_rs_initialize(void); 2674 void pf_rule_tree_free(struct pf_krule_global *); 2675 2676 2677 struct pf_krule *pf_krule_alloc(void); 2678 2679 void pf_remove_if_empty_keth_ruleset( 2680 struct pf_keth_ruleset *); 2681 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *); 2682 struct pf_keth_anchor *pf_find_keth_anchor(const char *); 2683 int pf_keth_anchor_setup(struct pf_keth_rule *, 2684 const struct pf_keth_ruleset *, const char *); 2685 int pf_keth_anchor_nvcopyout( 2686 const struct pf_keth_ruleset *, 2687 const struct pf_keth_rule *, nvlist_t *); 2688 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *); 2689 void pf_keth_anchor_remove(struct pf_keth_rule *); 2690 2691 int pf_ioctl_getrules(struct pfioc_rule *); 2692 int pf_ioctl_addrule(struct pf_krule *, uint32_t, 2693 uint32_t, const char *, const char *, uid_t uid, 2694 pid_t); 2695 void pf_ioctl_clear_status(void); 2696 int pf_ioctl_get_timeout(int, int *); 2697 int pf_ioctl_set_timeout(int, int, int *); 2698 int pf_ioctl_get_limit(int, unsigned int *); 2699 int pf_ioctl_set_limit(int, unsigned int, unsigned int *); 2700 int pf_ioctl_begin_addrs(uint32_t *); 2701 int pf_ioctl_add_addr(struct pf_nl_pooladdr *); 2702 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *); 2703 int pf_ioctl_get_addr(struct pf_nl_pooladdr *); 2704 int pf_ioctl_get_rulesets(struct pfioc_ruleset *); 2705 int pf_ioctl_get_ruleset(struct pfioc_ruleset *); 2706 int pf_ioctl_natlook(struct pfioc_natlook *); 2707 2708 void pf_krule_free(struct pf_krule *); 2709 void pf_krule_clear_counters(struct pf_krule *); 2710 void pf_addr_copyout(struct pf_addr_wrap *); 2711 #endif 2712 2713 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2714 int pf_osfp_add(struct pf_osfp_ioctl *); 2715 #ifdef _KERNEL 2716 struct pf_osfp_enlist * 2717 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *); 2718 #endif /* _KERNEL */ 2719 void pf_osfp_flush(void); 2720 int pf_osfp_get(struct pf_osfp_ioctl *); 2721 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2722 2723 #ifdef _KERNEL 2724 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t); 2725 2726 enum pf_test_status pf_step_into_anchor(struct pf_test_ctx *, struct pf_krule *); 2727 enum pf_test_status pf_match_rule(struct pf_test_ctx *, struct pf_kruleset *); 2728 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *, 2729 int *, struct pf_keth_ruleset **, 2730 struct pf_keth_rule **, struct pf_keth_rule **, 2731 int *); 2732 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *, 2733 int *, struct pf_keth_ruleset **, 2734 struct pf_keth_rule **, struct pf_keth_rule **, 2735 int *); 2736 2737 u_short pf_map_addr(sa_family_t, struct pf_krule *, 2738 struct pf_addr *, struct pf_addr *, 2739 struct pfi_kkif **nkif, sa_family_t *, 2740 struct pf_addr *, struct pf_kpool *); 2741 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *, 2742 struct pf_addr *, struct pf_addr *, 2743 sa_family_t *, struct pfi_kkif **, 2744 struct pf_addr *, struct pf_kpool *, 2745 pf_sn_types_t); 2746 int pf_get_transaddr_af(struct pf_krule *, 2747 struct pf_pdesc *); 2748 u_short pf_get_translation(struct pf_test_ctx *); 2749 u_short pf_get_transaddr(struct pf_test_ctx *, 2750 struct pf_krule *, 2751 u_int8_t, struct pf_kpool *); 2752 int pf_translate_compat(struct pf_test_ctx *); 2753 2754 int pf_state_key_setup(struct pf_pdesc *, 2755 u_int16_t, u_int16_t, 2756 struct pf_state_key **sk, struct pf_state_key **nk); 2757 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *); 2758 void pf_rule_to_actions(struct pf_krule *, 2759 struct pf_rule_actions *); 2760 int pf_normalize_mss(struct pf_pdesc *pd); 2761 #if defined(INET) || defined(INET6) 2762 void pf_scrub(struct pf_pdesc *); 2763 #endif 2764 2765 struct pfi_kkif *pf_kkif_create(int); 2766 void pf_kkif_free(struct pfi_kkif *); 2767 void pf_kkif_zero(struct pfi_kkif *); 2768 2769 2770 /* NAT64 functions. */ 2771 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 2772 int inet_nat64_inet(const void *, void *, const void *, u_int8_t); 2773 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t); 2774 2775 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 2776 int inet_nat46_inet(const void *, void *, const void *, u_int8_t); 2777 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t); 2778 2779 #endif /* _KERNEL */ 2780 2781 #endif /* _NET_PFVAR_H_ */ 2782