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 1155 enum pf_test_status { 1156 PF_TEST_FAIL = -1, 1157 PF_TEST_OK, 1158 PF_TEST_QUICK 1159 }; 1160 1161 struct pf_test_ctx { 1162 enum pf_test_status test_status; 1163 struct pf_pdesc *pd; 1164 struct pf_rule_actions act; 1165 uint8_t icmpcode; 1166 uint8_t icmptype; 1167 int icmp_dir; 1168 int state_icmp; 1169 int tag; 1170 int rewrite; 1171 u_short reason; 1172 struct pf_src_node *sns[PF_SN_MAX]; 1173 struct pf_krule_slist rules; 1174 struct pf_krule *nr; 1175 struct pf_krule *tr; 1176 struct pf_krule **rm; 1177 struct pf_krule *a; 1178 struct pf_krule **am; 1179 struct pf_kruleset **rsm; 1180 struct pf_kruleset *arsm; 1181 struct pf_kruleset *aruleset; 1182 struct pf_state_key *sk; 1183 struct pf_state_key *nk; 1184 struct tcphdr *th; 1185 struct pf_udp_mapping *udp_mapping; 1186 struct pf_kpool *nat_pool; 1187 uint16_t virtual_type; 1188 uint16_t virtual_id; 1189 int depth; 1190 }; 1191 1192 #define PF_ANCHOR_STACK_MAX 32 1193 #endif 1194 1195 /* 1196 * Unified state structures for pulling states out of the kernel 1197 * used by pfsync(4) and the pf(4) ioctl. 1198 */ 1199 struct pfsync_state_scrub { 1200 u_int16_t pfss_flags; 1201 u_int8_t pfss_ttl; /* stashed TTL */ 1202 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1203 u_int8_t scrub_flag; 1204 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1205 } __packed; 1206 1207 struct pfsync_state_peer { 1208 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1209 u_int32_t seqlo; /* Max sequence number sent */ 1210 u_int32_t seqhi; /* Max the other end ACKd + win */ 1211 u_int32_t seqdiff; /* Sequence number modulator */ 1212 u_int16_t max_win; /* largest window (pre scaling) */ 1213 u_int16_t mss; /* Maximum segment size option */ 1214 u_int8_t state; /* active state level */ 1215 u_int8_t wscale; /* window scaling factor */ 1216 u_int8_t pad[6]; 1217 } __packed; 1218 1219 struct pfsync_state_key { 1220 struct pf_addr addr[2]; 1221 u_int16_t port[2]; 1222 }; 1223 1224 struct pfsync_state_1301 { 1225 u_int64_t id; 1226 char ifname[IFNAMSIZ]; 1227 struct pfsync_state_key key[2]; 1228 struct pfsync_state_peer src; 1229 struct pfsync_state_peer dst; 1230 struct pf_addr rt_addr; 1231 u_int32_t rule; 1232 u_int32_t anchor; 1233 u_int32_t nat_rule; 1234 u_int32_t creation; 1235 u_int32_t expire; 1236 u_int32_t packets[2][2]; 1237 u_int32_t bytes[2][2]; 1238 u_int32_t creatorid; 1239 sa_family_t af; 1240 u_int8_t proto; 1241 u_int8_t direction; 1242 u_int8_t __spare[2]; 1243 u_int8_t log; 1244 u_int8_t state_flags; 1245 u_int8_t timeout; 1246 u_int8_t sync_flags; 1247 u_int8_t updates; 1248 } __packed; 1249 1250 struct pfsync_state_1400 { 1251 /* The beginning of the struct is compatible with previous versions */ 1252 u_int64_t id; 1253 char ifname[IFNAMSIZ]; 1254 struct pfsync_state_key key[2]; 1255 struct pfsync_state_peer src; 1256 struct pfsync_state_peer dst; 1257 struct pf_addr rt_addr; 1258 u_int32_t rule; 1259 u_int32_t anchor; 1260 u_int32_t nat_rule; 1261 u_int32_t creation; 1262 u_int32_t expire; 1263 u_int32_t packets[2][2]; 1264 u_int32_t bytes[2][2]; 1265 u_int32_t creatorid; 1266 sa_family_t af; 1267 u_int8_t proto; 1268 u_int8_t direction; 1269 u_int16_t state_flags; 1270 u_int8_t log; 1271 u_int8_t __spare; 1272 u_int8_t timeout; 1273 u_int8_t sync_flags; 1274 u_int8_t updates; 1275 /* The rest is not */ 1276 u_int16_t qid; 1277 u_int16_t pqid; 1278 u_int16_t dnpipe; 1279 u_int16_t dnrpipe; 1280 int32_t rtableid; 1281 u_int8_t min_ttl; 1282 u_int8_t set_tos; 1283 u_int16_t max_mss; 1284 u_int8_t set_prio[2]; 1285 u_int8_t rt; 1286 char rt_ifname[IFNAMSIZ]; 1287 1288 } __packed; 1289 1290 union pfsync_state_union { 1291 struct pfsync_state_1301 pfs_1301; 1292 struct pfsync_state_1400 pfs_1400; 1293 } __packed; 1294 1295 #ifdef _KERNEL 1296 /* pfsync */ 1297 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int); 1298 typedef void pfsync_insert_state_t(struct pf_kstate *); 1299 typedef void pfsync_update_state_t(struct pf_kstate *); 1300 typedef void pfsync_delete_state_t(struct pf_kstate *); 1301 typedef void pfsync_clear_states_t(u_int32_t, const char *); 1302 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 1303 typedef void pfsync_detach_ifnet_t(struct ifnet *); 1304 typedef void pflow_export_state_t(const struct pf_kstate *); 1305 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *); 1306 1307 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 1308 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 1309 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 1310 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 1311 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 1312 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 1313 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 1314 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 1315 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 1316 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 1317 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 1318 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 1319 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr); 1320 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr) 1321 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 1322 1323 void pfsync_state_export(union pfsync_state_union *, 1324 struct pf_kstate *, int); 1325 void pf_state_export(struct pf_state_export *, 1326 struct pf_kstate *); 1327 1328 /* pflog */ 1329 struct pf_kruleset; 1330 struct pf_pdesc; 1331 typedef int pflog_packet_t(uint8_t, u_int8_t, 1332 struct pf_krule *, struct pf_krule *, struct pf_kruleset *, 1333 struct pf_pdesc *, int, struct pf_krule *); 1334 extern pflog_packet_t *pflog_packet_ptr; 1335 1336 #endif /* _KERNEL */ 1337 1338 #define PFSYNC_FLAG_SRCNODE 0x04 1339 #define PFSYNC_FLAG_NATSRCNODE 0x08 1340 1341 /* for copies to/from network byte order */ 1342 /* ioctl interface also uses network byte order */ 1343 #define pf_state_peer_hton(s,d) do { \ 1344 (d)->seqlo = htonl((s)->seqlo); \ 1345 (d)->seqhi = htonl((s)->seqhi); \ 1346 (d)->seqdiff = htonl((s)->seqdiff); \ 1347 (d)->max_win = htons((s)->max_win); \ 1348 (d)->mss = htons((s)->mss); \ 1349 (d)->state = (s)->state; \ 1350 (d)->wscale = (s)->wscale; \ 1351 if ((s)->scrub) { \ 1352 (d)->scrub.pfss_flags = \ 1353 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 1354 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1355 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 1356 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1357 } \ 1358 } while (0) 1359 1360 #define pf_state_peer_ntoh(s,d) do { \ 1361 (d)->seqlo = ntohl((s)->seqlo); \ 1362 (d)->seqhi = ntohl((s)->seqhi); \ 1363 (d)->seqdiff = ntohl((s)->seqdiff); \ 1364 (d)->max_win = ntohs((s)->max_win); \ 1365 (d)->mss = ntohs((s)->mss); \ 1366 (d)->state = (s)->state; \ 1367 (d)->wscale = (s)->wscale; \ 1368 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1369 (d)->scrub != NULL) { \ 1370 (d)->scrub->pfss_flags = \ 1371 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1372 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1373 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1374 } \ 1375 } while (0) 1376 1377 #define pf_state_counter_hton(s,d) do { \ 1378 d[0] = htonl((s>>32)&0xffffffff); \ 1379 d[1] = htonl(s&0xffffffff); \ 1380 } while (0) 1381 1382 #define pf_state_counter_from_pfsync(s) \ 1383 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1384 1385 #define pf_state_counter_ntoh(s,d) do { \ 1386 d = ntohl(s[0]); \ 1387 d = d<<32; \ 1388 d += ntohl(s[1]); \ 1389 } while (0) 1390 1391 TAILQ_HEAD(pf_krulequeue, pf_krule); 1392 1393 struct pf_kanchor; 1394 1395 struct pf_kruleset { 1396 struct { 1397 struct pf_krulequeue queues[2]; 1398 struct { 1399 struct pf_krulequeue *ptr; 1400 struct pf_krule **ptr_array; 1401 u_int32_t rcount; 1402 u_int32_t ticket; 1403 int open; 1404 struct pf_krule_global *tree; 1405 } active, inactive; 1406 } rules[PF_RULESET_MAX]; 1407 struct pf_kanchor *anchor; 1408 u_int32_t tticket; 1409 int tables; 1410 int topen; 1411 }; 1412 1413 RB_HEAD(pf_kanchor_global, pf_kanchor); 1414 RB_HEAD(pf_kanchor_node, pf_kanchor); 1415 struct pf_kanchor { 1416 RB_ENTRY(pf_kanchor) entry_global; 1417 RB_ENTRY(pf_kanchor) entry_node; 1418 struct pf_kanchor *parent; 1419 struct pf_kanchor_node children; 1420 char name[PF_ANCHOR_NAME_SIZE]; 1421 char path[MAXPATHLEN]; 1422 struct pf_kruleset ruleset; 1423 int refcnt; /* anchor rules */ 1424 }; 1425 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1426 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1427 1428 #define PF_RESERVED_ANCHOR "_pf" 1429 1430 #define PFR_TFLAG_PERSIST 0x00000001 1431 #define PFR_TFLAG_CONST 0x00000002 1432 #define PFR_TFLAG_ACTIVE 0x00000004 1433 #define PFR_TFLAG_INACTIVE 0x00000008 1434 #define PFR_TFLAG_REFERENCED 0x00000010 1435 #define PFR_TFLAG_REFDANCHOR 0x00000020 1436 #define PFR_TFLAG_COUNTERS 0x00000040 1437 /* Adjust masks below when adding flags. */ 1438 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1439 PFR_TFLAG_CONST | \ 1440 PFR_TFLAG_COUNTERS) 1441 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1442 PFR_TFLAG_INACTIVE | \ 1443 PFR_TFLAG_REFERENCED | \ 1444 PFR_TFLAG_REFDANCHOR) 1445 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1446 PFR_TFLAG_CONST | \ 1447 PFR_TFLAG_ACTIVE | \ 1448 PFR_TFLAG_INACTIVE | \ 1449 PFR_TFLAG_REFERENCED | \ 1450 PFR_TFLAG_REFDANCHOR | \ 1451 PFR_TFLAG_COUNTERS) 1452 1453 struct pf_keth_anchor_stackframe; 1454 1455 struct pfr_table { 1456 char pfrt_anchor[MAXPATHLEN]; 1457 char pfrt_name[PF_TABLE_NAME_SIZE]; 1458 u_int32_t pfrt_flags; 1459 u_int8_t pfrt_fback; 1460 }; 1461 1462 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1463 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1464 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1465 1466 struct pfr_addr { 1467 union { 1468 struct in_addr _pfra_ip4addr; 1469 struct in6_addr _pfra_ip6addr; 1470 } pfra_u; 1471 u_int8_t pfra_af; 1472 u_int8_t pfra_net; 1473 u_int8_t pfra_not; 1474 u_int8_t pfra_fback; 1475 }; 1476 #define pfra_ip4addr pfra_u._pfra_ip4addr 1477 #define pfra_ip6addr pfra_u._pfra_ip6addr 1478 1479 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1480 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1481 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1482 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1483 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1484 1485 struct pfr_astats { 1486 struct pfr_addr pfras_a; 1487 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1488 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1489 time_t pfras_tzero; 1490 }; 1491 1492 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1493 1494 struct pfr_tstats { 1495 struct pfr_table pfrts_t; 1496 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1497 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1498 u_int64_t pfrts_match; 1499 u_int64_t pfrts_nomatch; 1500 time_t pfrts_tzero; 1501 int pfrts_cnt; 1502 int pfrts_refcnt[PFR_REFCNT_MAX]; 1503 }; 1504 1505 #ifdef _KERNEL 1506 1507 struct pfr_kstate_counter { 1508 counter_u64_t pkc_pcpu; 1509 u_int64_t pkc_zero; 1510 }; 1511 1512 static inline int 1513 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1514 { 1515 1516 pfrc->pkc_zero = 0; 1517 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1518 if (pfrc->pkc_pcpu == NULL) 1519 return (ENOMEM); 1520 return (0); 1521 } 1522 1523 static inline void 1524 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1525 { 1526 1527 counter_u64_free(pfrc->pkc_pcpu); 1528 } 1529 1530 static inline u_int64_t 1531 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1532 { 1533 u_int64_t c; 1534 1535 c = counter_u64_fetch(pfrc->pkc_pcpu); 1536 c -= pfrc->pkc_zero; 1537 return (c); 1538 } 1539 1540 static inline void 1541 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1542 { 1543 u_int64_t c; 1544 1545 c = counter_u64_fetch(pfrc->pkc_pcpu); 1546 pfrc->pkc_zero = c; 1547 } 1548 1549 static inline void 1550 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1551 { 1552 1553 counter_u64_add(pfrc->pkc_pcpu, n); 1554 } 1555 1556 struct pfr_ktstats { 1557 struct pfr_table pfrts_t; 1558 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1559 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1560 struct pfr_kstate_counter pfrkts_match; 1561 struct pfr_kstate_counter pfrkts_nomatch; 1562 time_t pfrkts_tzero; 1563 int pfrkts_cnt; 1564 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1565 }; 1566 1567 #endif /* _KERNEL */ 1568 1569 #define pfrts_name pfrts_t.pfrt_name 1570 #define pfrts_flags pfrts_t.pfrt_flags 1571 1572 #ifndef _SOCKADDR_UNION_DEFINED 1573 #define _SOCKADDR_UNION_DEFINED 1574 union sockaddr_union { 1575 struct sockaddr sa; 1576 struct sockaddr_in sin; 1577 struct sockaddr_in6 sin6; 1578 }; 1579 #endif /* _SOCKADDR_UNION_DEFINED */ 1580 1581 struct pfr_kcounters { 1582 counter_u64_t pfrkc_counters; 1583 time_t pfrkc_tzero; 1584 }; 1585 #define pfr_kentry_counter(kc, dir, op, t) \ 1586 ((kc)->pfrkc_counters + \ 1587 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1588 1589 #ifdef _KERNEL 1590 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1591 struct pfr_kentry { 1592 struct radix_node pfrke_node[2]; 1593 union sockaddr_union pfrke_sa; 1594 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1595 struct pfr_kcounters pfrke_counters; 1596 u_int8_t pfrke_af; 1597 u_int8_t pfrke_net; 1598 u_int8_t pfrke_not; 1599 u_int8_t pfrke_mark; 1600 }; 1601 1602 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1603 RB_HEAD(pfr_ktablehead, pfr_ktable); 1604 struct pfr_ktable { 1605 struct pfr_ktstats pfrkt_kts; 1606 RB_ENTRY(pfr_ktable) pfrkt_tree; 1607 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1608 struct radix_node_head *pfrkt_ip4; 1609 struct radix_node_head *pfrkt_ip6; 1610 struct pfr_ktable *pfrkt_shadow; 1611 struct pfr_ktable *pfrkt_root; 1612 struct pf_kruleset *pfrkt_rs; 1613 long pfrkt_larg; 1614 int pfrkt_nflags; 1615 }; 1616 #define pfrkt_t pfrkt_kts.pfrts_t 1617 #define pfrkt_name pfrkt_t.pfrt_name 1618 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1619 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1620 #define pfrkt_flags pfrkt_t.pfrt_flags 1621 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1622 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1623 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1624 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1625 #define pfrkt_match pfrkt_kts.pfrkts_match 1626 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1627 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1628 #endif 1629 1630 #ifdef _KERNEL 1631 struct pfi_kkif { 1632 char pfik_name[IFNAMSIZ]; 1633 union { 1634 RB_ENTRY(pfi_kkif) _pfik_tree; 1635 LIST_ENTRY(pfi_kkif) _pfik_list; 1636 } _pfik_glue; 1637 #define pfik_tree _pfik_glue._pfik_tree 1638 #define pfik_list _pfik_glue._pfik_list 1639 struct pf_counter_u64 pfik_packets[2][2][2]; 1640 struct pf_counter_u64 pfik_bytes[2][2][2]; 1641 time_t pfik_tzero; 1642 u_int pfik_flags; 1643 struct ifnet *pfik_ifp; 1644 struct ifg_group *pfik_group; 1645 u_int pfik_rulerefs; 1646 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1647 #ifdef PF_WANT_32_TO_64_COUNTER 1648 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1649 #endif 1650 }; 1651 #endif 1652 1653 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1654 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1655 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */ 1656 1657 #ifdef _KERNEL 1658 struct pf_sctp_multihome_job; 1659 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job); 1660 1661 struct pf_pdesc { 1662 struct { 1663 int done; 1664 uid_t uid; 1665 gid_t gid; 1666 } lookup; 1667 u_int64_t tot_len; /* Make Mickey money */ 1668 union pf_headers { 1669 struct tcphdr tcp; 1670 struct udphdr udp; 1671 struct sctphdr sctp; 1672 struct icmp icmp; 1673 #ifdef INET6 1674 struct icmp6_hdr icmp6; 1675 #endif /* INET6 */ 1676 char any[0]; 1677 } hdr; 1678 1679 struct pf_addr nsaddr; /* src address after NAT */ 1680 struct pf_addr ndaddr; /* dst address after NAT */ 1681 1682 struct pfi_kkif *kif; /* incomming interface */ 1683 struct mbuf *m; 1684 1685 struct pf_addr *src; /* src address */ 1686 struct pf_addr *dst; /* dst address */ 1687 struct pf_addr osrc; 1688 struct pf_addr odst; 1689 u_int16_t *pcksum; /* proto cksum */ 1690 u_int16_t *sport; 1691 u_int16_t *dport; 1692 u_int16_t osport; 1693 u_int16_t odport; 1694 u_int16_t nsport; /* src port after NAT */ 1695 u_int16_t ndport; /* dst port after NAT */ 1696 struct pf_mtag *pf_mtag; 1697 struct pf_rule_actions act; 1698 1699 u_int32_t off; /* protocol header offset */ 1700 bool df; /* IPv4 Don't fragment flag. */ 1701 u_int32_t hdrlen; /* protocol header length */ 1702 u_int32_t p_len; /* total length of protocol payload */ 1703 u_int32_t extoff; /* extentsion header offset */ 1704 u_int32_t fragoff; /* fragment header offset */ 1705 u_int32_t jumbolen; /* length from v6 jumbo header */ 1706 u_int32_t badopts; /* v4 options or v6 routing headers */ 1707 1708 u_int16_t *ip_sum; 1709 u_int16_t flags; /* Let SCRUB trigger behavior in 1710 * state code. Easier than tags */ 1711 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1712 u_int16_t virtual_proto; 1713 #define PF_VPROTO_FRAGMENT 256 1714 sa_family_t af; 1715 sa_family_t naf; 1716 u_int8_t proto; 1717 u_int8_t tos; 1718 u_int8_t ttl; 1719 u_int8_t dir; /* direction */ 1720 u_int8_t sidx; /* key index for source */ 1721 u_int8_t didx; /* key index for destination */ 1722 #define PFDESC_SCTP_INIT 0x0001 1723 #define PFDESC_SCTP_INIT_ACK 0x0002 1724 #define PFDESC_SCTP_COOKIE 0x0004 1725 #define PFDESC_SCTP_COOKIE_ACK 0x0008 1726 #define PFDESC_SCTP_ABORT 0x0010 1727 #define PFDESC_SCTP_SHUTDOWN 0x0020 1728 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040 1729 #define PFDESC_SCTP_DATA 0x0080 1730 #define PFDESC_SCTP_ASCONF 0x0100 1731 #define PFDESC_SCTP_HEARTBEAT 0x0200 1732 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400 1733 #define PFDESC_SCTP_OTHER 0x0800 1734 #define PFDESC_SCTP_ADD_IP 0x1000 1735 u_int16_t sctp_flags; 1736 u_int32_t sctp_initiate_tag; 1737 u_int16_t sctp_dummy_sum; 1738 struct pf_krule *related_rule; 1739 1740 struct pf_sctp_multihome_jobs sctp_multihome_jobs; 1741 }; 1742 1743 struct pf_sctp_multihome_job { 1744 TAILQ_ENTRY(pf_sctp_multihome_job) next; 1745 struct pf_pdesc pd; 1746 struct pf_addr src; 1747 struct pf_addr dst; 1748 int op; 1749 }; 1750 1751 #endif 1752 1753 /* flags for RDR options */ 1754 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1755 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1756 1757 /* UDP state enumeration */ 1758 #define PFUDPS_NO_TRAFFIC 0 1759 #define PFUDPS_SINGLE 1 1760 #define PFUDPS_MULTIPLE 2 1761 1762 #define PFUDPS_NSTATES 3 /* number of state levels */ 1763 1764 #define PFUDPS_NAMES { \ 1765 "NO_TRAFFIC", \ 1766 "SINGLE", \ 1767 "MULTIPLE", \ 1768 NULL \ 1769 } 1770 1771 /* Other protocol state enumeration */ 1772 #define PFOTHERS_NO_TRAFFIC 0 1773 #define PFOTHERS_SINGLE 1 1774 #define PFOTHERS_MULTIPLE 2 1775 1776 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1777 1778 #define PFOTHERS_NAMES { \ 1779 "NO_TRAFFIC", \ 1780 "SINGLE", \ 1781 "MULTIPLE", \ 1782 NULL \ 1783 } 1784 1785 #define ACTION_SET(a, x) \ 1786 do { \ 1787 if ((a) != NULL) \ 1788 *(a) = (x); \ 1789 } while (0) 1790 1791 #define REASON_SET(a, x) \ 1792 do { \ 1793 SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \ 1794 if ((a) != NULL) \ 1795 *(a) = (x); \ 1796 if (x < PFRES_MAX) \ 1797 counter_u64_add(V_pf_status.counters[x], 1); \ 1798 } while (0) 1799 1800 enum pf_syncookies_mode { 1801 PF_SYNCOOKIES_NEVER = 0, 1802 PF_SYNCOOKIES_ALWAYS = 1, 1803 PF_SYNCOOKIES_ADAPTIVE = 2, 1804 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1805 }; 1806 1807 #define PF_SYNCOOKIES_HIWATPCT 25 1808 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1809 1810 #ifdef _KERNEL 1811 struct pf_kstatus { 1812 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1813 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1814 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1815 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1816 uint32_t states; 1817 uint32_t src_nodes; 1818 uint32_t running; 1819 uint32_t since; 1820 uint32_t debug; 1821 uint32_t hostid; 1822 char ifname[IFNAMSIZ]; 1823 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1824 bool keep_counters; 1825 enum pf_syncookies_mode syncookies_mode; 1826 bool syncookies_active; 1827 uint64_t syncookies_inflight[2]; 1828 uint32_t states_halfopen; 1829 uint32_t reass; 1830 }; 1831 #endif 1832 1833 struct pf_divert { 1834 union { 1835 struct in_addr ipv4; 1836 struct in6_addr ipv6; 1837 } addr; 1838 u_int16_t port; 1839 }; 1840 1841 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1842 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1843 1844 struct pf_fragment_tag { 1845 uint16_t ft_hdrlen; /* header length of reassembled pkt */ 1846 uint16_t ft_extoff; /* last extension header offset or 0 */ 1847 uint16_t ft_maxlen; /* maximum fragment payload length */ 1848 uint32_t ft_id; /* fragment id */ 1849 }; 1850 1851 /* 1852 * Limit the length of the fragment queue traversal. Remember 1853 * search entry points based on the fragment offset. 1854 */ 1855 #define PF_FRAG_ENTRY_POINTS 16 1856 1857 /* 1858 * The number of entries in the fragment queue must be limited 1859 * to avoid DoS by linear searching. Instead of a global limit, 1860 * use a limit per entry point. For large packets these sum up. 1861 */ 1862 #define PF_FRAG_ENTRY_LIMIT 64 1863 1864 /* 1865 * ioctl parameter structures 1866 */ 1867 1868 struct pfioc_pooladdr { 1869 u_int32_t action; 1870 u_int32_t ticket; 1871 u_int32_t nr; 1872 u_int32_t r_num; 1873 u_int8_t r_action; 1874 u_int8_t r_last; 1875 u_int8_t af; 1876 char anchor[MAXPATHLEN]; 1877 struct pf_pooladdr addr; 1878 }; 1879 1880 struct pfioc_rule { 1881 u_int32_t action; 1882 u_int32_t ticket; 1883 u_int32_t pool_ticket; 1884 u_int32_t nr; 1885 char anchor[MAXPATHLEN]; 1886 char anchor_call[MAXPATHLEN]; 1887 struct pf_rule rule; 1888 }; 1889 1890 struct pfioc_natlook { 1891 struct pf_addr saddr; 1892 struct pf_addr daddr; 1893 struct pf_addr rsaddr; 1894 struct pf_addr rdaddr; 1895 u_int16_t sport; 1896 u_int16_t dport; 1897 u_int16_t rsport; 1898 u_int16_t rdport; 1899 sa_family_t af; 1900 u_int8_t proto; 1901 u_int8_t direction; 1902 }; 1903 1904 struct pfioc_state { 1905 struct pfsync_state_1301 state; 1906 }; 1907 1908 struct pfioc_src_node_kill { 1909 sa_family_t psnk_af; 1910 struct pf_rule_addr psnk_src; 1911 struct pf_rule_addr psnk_dst; 1912 u_int psnk_killed; 1913 }; 1914 1915 #ifdef _KERNEL 1916 struct pf_kstate_kill { 1917 struct pf_state_cmp psk_pfcmp; 1918 sa_family_t psk_af; 1919 int psk_proto; 1920 struct pf_rule_addr psk_src; 1921 struct pf_rule_addr psk_dst; 1922 struct pf_rule_addr psk_rt_addr; 1923 char psk_ifname[IFNAMSIZ]; 1924 char psk_label[PF_RULE_LABEL_SIZE]; 1925 u_int psk_killed; 1926 bool psk_kill_match; 1927 bool psk_nat; 1928 }; 1929 #endif 1930 1931 struct pfioc_state_kill { 1932 struct pf_state_cmp psk_pfcmp; 1933 sa_family_t psk_af; 1934 int psk_proto; 1935 struct pf_rule_addr psk_src; 1936 struct pf_rule_addr psk_dst; 1937 char psk_ifname[IFNAMSIZ]; 1938 char psk_label[PF_RULE_LABEL_SIZE]; 1939 u_int psk_killed; 1940 }; 1941 1942 struct pfioc_states { 1943 int ps_len; 1944 union { 1945 void *ps_buf; 1946 struct pfsync_state_1301 *ps_states; 1947 }; 1948 }; 1949 1950 struct pfioc_states_v2 { 1951 int ps_len; 1952 uint64_t ps_req_version; 1953 union { 1954 void *ps_buf; 1955 struct pf_state_export *ps_states; 1956 }; 1957 }; 1958 1959 struct pfioc_src_nodes { 1960 int psn_len; 1961 union { 1962 void *psn_buf; 1963 struct pf_src_node *psn_src_nodes; 1964 }; 1965 }; 1966 1967 struct pfioc_if { 1968 char ifname[IFNAMSIZ]; 1969 }; 1970 1971 struct pfioc_tm { 1972 int timeout; 1973 int seconds; 1974 }; 1975 1976 struct pfioc_limit { 1977 int index; 1978 unsigned limit; 1979 }; 1980 1981 struct pfioc_altq_v0 { 1982 u_int32_t action; 1983 u_int32_t ticket; 1984 u_int32_t nr; 1985 struct pf_altq_v0 altq; 1986 }; 1987 1988 struct pfioc_altq_v1 { 1989 u_int32_t action; 1990 u_int32_t ticket; 1991 u_int32_t nr; 1992 /* 1993 * Placed here so code that only uses the above parameters can be 1994 * written entirely in terms of the v0 or v1 type. 1995 */ 1996 u_int32_t version; 1997 struct pf_altq_v1 altq; 1998 }; 1999 2000 /* 2001 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 2002 * the latest version of struct pf_altq_vX as it has that struct as a 2003 * member. 2004 */ 2005 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 2006 2007 struct pfioc_qstats_v0 { 2008 u_int32_t ticket; 2009 u_int32_t nr; 2010 void *buf; 2011 int nbytes; 2012 u_int8_t scheduler; 2013 }; 2014 2015 struct pfioc_qstats_v1 { 2016 u_int32_t ticket; 2017 u_int32_t nr; 2018 void *buf; 2019 int nbytes; 2020 u_int8_t scheduler; 2021 /* 2022 * Placed here so code that only uses the above parameters can be 2023 * written entirely in terms of the v0 or v1 type. 2024 */ 2025 u_int32_t version; /* Requested version of stats struct */ 2026 }; 2027 2028 /* Latest version of struct pfioc_qstats_vX */ 2029 #define PFIOC_QSTATS_VERSION 1 2030 2031 struct pfioc_ruleset { 2032 u_int32_t nr; 2033 char path[MAXPATHLEN]; 2034 char name[PF_ANCHOR_NAME_SIZE]; 2035 }; 2036 2037 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 2038 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 2039 #define PF_RULESET_ETH (PF_RULESET_MAX+2) 2040 struct pfioc_trans { 2041 int size; /* number of elements */ 2042 int esize; /* size of each element in bytes */ 2043 struct pfioc_trans_e { 2044 int rs_num; 2045 char anchor[MAXPATHLEN]; 2046 u_int32_t ticket; 2047 } *array; 2048 }; 2049 2050 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 2051 #define PFR_FLAG_DUMMY 0x00000002 2052 #define PFR_FLAG_FEEDBACK 0x00000004 2053 #define PFR_FLAG_CLSTATS 0x00000008 2054 #define PFR_FLAG_ADDRSTOO 0x00000010 2055 #define PFR_FLAG_REPLACE 0x00000020 2056 #define PFR_FLAG_ALLRSETS 0x00000040 2057 #define PFR_FLAG_ALLMASK 0x0000007F 2058 #ifdef _KERNEL 2059 #define PFR_FLAG_USERIOCTL 0x10000000 2060 #endif 2061 2062 struct pfioc_table { 2063 struct pfr_table pfrio_table; 2064 void *pfrio_buffer; 2065 int pfrio_esize; 2066 int pfrio_size; 2067 int pfrio_size2; 2068 int pfrio_nadd; 2069 int pfrio_ndel; 2070 int pfrio_nchange; 2071 int pfrio_flags; 2072 u_int32_t pfrio_ticket; 2073 }; 2074 #define pfrio_exists pfrio_nadd 2075 #define pfrio_nzero pfrio_nadd 2076 #define pfrio_nmatch pfrio_nadd 2077 #define pfrio_naddr pfrio_size2 2078 #define pfrio_setflag pfrio_size2 2079 #define pfrio_clrflag pfrio_nadd 2080 2081 struct pfioc_iface { 2082 char pfiio_name[IFNAMSIZ]; 2083 void *pfiio_buffer; 2084 int pfiio_esize; 2085 int pfiio_size; 2086 int pfiio_nzero; 2087 int pfiio_flags; 2088 }; 2089 2090 /* 2091 * ioctl operations 2092 */ 2093 2094 #define DIOCSTART _IO ('D', 1) 2095 #define DIOCSTOP _IO ('D', 2) 2096 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2097 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 2098 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2099 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 2100 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 2101 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2102 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 2103 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2104 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv) 2105 #define DIOCCLRSTATUS _IO ('D', 22) 2106 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2107 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2108 #ifdef COMPAT_FREEBSD14 2109 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2110 #endif 2111 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2112 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2113 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2114 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2115 #define DIOCCLRRULECTRS _IO ('D', 38) 2116 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2117 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2118 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 2119 #define DIOCSTARTALTQ _IO ('D', 42) 2120 #define DIOCSTOPALTQ _IO ('D', 43) 2121 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 2122 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 2123 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 2124 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 2125 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 2126 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 2127 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 2128 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 2129 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 2130 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 2131 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2132 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2133 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2134 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2135 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2136 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2137 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2138 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2139 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2140 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2141 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2142 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2143 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2144 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2145 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2146 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2147 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2148 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2149 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2150 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2151 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2152 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2153 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2154 #define DIOCOSFPFLUSH _IO('D', 78) 2155 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2156 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2157 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2158 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2159 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2160 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2161 #define DIOCCLRSRCNODES _IO('D', 85) 2162 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2163 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2164 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2165 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2166 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2167 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 2168 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 2169 #ifdef COMPAT_FREEBSD14 2170 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2) 2171 #endif 2172 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv) 2173 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv) 2174 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv) 2175 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv) 2176 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv) 2177 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv) 2178 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv) 2179 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv) 2180 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv) 2181 #define DIOCSETREASS _IOWR('D', 102, u_int32_t) 2182 2183 struct pf_ifspeed_v0 { 2184 char ifname[IFNAMSIZ]; 2185 u_int32_t baudrate; 2186 }; 2187 2188 struct pf_ifspeed_v1 { 2189 char ifname[IFNAMSIZ]; 2190 u_int32_t baudrate32; 2191 /* layout identical to struct pf_ifspeed_v0 up to this point */ 2192 u_int64_t baudrate; 2193 }; 2194 2195 /* Latest version of struct pf_ifspeed_vX */ 2196 #define PF_IFSPEED_VERSION 1 2197 2198 /* 2199 * Compatibility and convenience macros 2200 */ 2201 #ifndef _KERNEL 2202 #ifdef PFIOC_USE_LATEST 2203 /* 2204 * Maintaining in-tree consumers of the ioctl interface is easier when that 2205 * code can be written in terms old names that refer to the latest interface 2206 * version as that reduces the required changes in the consumers to those 2207 * that are functionally necessary to accommodate a new interface version. 2208 */ 2209 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 2210 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 2211 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 2212 2213 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 2214 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 2215 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 2216 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 2217 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 2218 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 2219 #else 2220 /* 2221 * When building out-of-tree code that is written for the old interface, 2222 * such as may exist in ports for example, resolve the old struct tags and 2223 * ioctl command names to the v0 versions. 2224 */ 2225 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 2226 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 2227 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 2228 2229 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 2230 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 2231 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 2232 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 2233 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 2234 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 2235 #endif /* PFIOC_USE_LATEST */ 2236 #endif /* _KERNEL */ 2237 2238 #ifdef _KERNEL 2239 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 2240 struct pf_srchash { 2241 struct pf_ksrc_node_list nodes; 2242 struct mtx lock; 2243 }; 2244 2245 struct pf_keyhash { 2246 LIST_HEAD(, pf_state_key) keys; 2247 struct mtx lock; 2248 }; 2249 2250 struct pf_idhash { 2251 LIST_HEAD(, pf_kstate) states; 2252 struct mtx lock; 2253 }; 2254 2255 struct pf_udpendpointhash { 2256 LIST_HEAD(, pf_udp_endpoint) endpoints; 2257 /* refcont is synchronized on the source endpoint's row lock */ 2258 struct mtx lock; 2259 }; 2260 2261 extern u_long pf_ioctl_maxcount; 2262 VNET_DECLARE(u_long, pf_hashmask); 2263 #define V_pf_hashmask VNET(pf_hashmask) 2264 VNET_DECLARE(u_long, pf_srchashmask); 2265 #define V_pf_srchashmask VNET(pf_srchashmask) 2266 VNET_DECLARE(u_long, pf_udpendpointhashmask); 2267 #define V_pf_udpendpointhashmask VNET(pf_udpendpointhashmask) 2268 #define PF_HASHSIZ (131072) 2269 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 2270 #define PF_UDPENDHASHSIZ (PF_HASHSIZ/4) 2271 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 2272 VNET_DECLARE(struct pf_idhash *, pf_idhash); 2273 VNET_DECLARE(struct pf_udpendpointhash *, pf_udpendpointhash); 2274 #define V_pf_keyhash VNET(pf_keyhash) 2275 #define V_pf_idhash VNET(pf_idhash) 2276 #define V_pf_udpendpointhash VNET(pf_udpendpointhash) 2277 VNET_DECLARE(struct pf_srchash *, pf_srchash); 2278 #define V_pf_srchash VNET(pf_srchash) 2279 2280 #define PF_IDHASHID(id) (be64toh(id) % (V_pf_hashmask + 1)) 2281 #define PF_IDHASH(s) PF_IDHASHID((s)->id) 2282 2283 VNET_DECLARE(void *, pf_swi_cookie); 2284 #define V_pf_swi_cookie VNET(pf_swi_cookie) 2285 VNET_DECLARE(struct intr_event *, pf_swi_ie); 2286 #define V_pf_swi_ie VNET(pf_swi_ie) 2287 2288 VNET_DECLARE(struct unrhdr64, pf_stateid); 2289 #define V_pf_stateid VNET(pf_stateid) 2290 2291 TAILQ_HEAD(pf_altqqueue, pf_altq); 2292 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 2293 #define V_pf_altqs VNET(pf_altqs) 2294 VNET_DECLARE(struct pf_kpalist, pf_pabuf[3]); 2295 #define V_pf_pabuf VNET(pf_pabuf) 2296 2297 VNET_DECLARE(u_int32_t, ticket_altqs_active); 2298 #define V_ticket_altqs_active VNET(ticket_altqs_active) 2299 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 2300 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 2301 VNET_DECLARE(int, altqs_inactive_open); 2302 #define V_altqs_inactive_open VNET(altqs_inactive_open) 2303 VNET_DECLARE(u_int32_t, ticket_pabuf); 2304 #define V_ticket_pabuf VNET(ticket_pabuf) 2305 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 2306 #define V_pf_altqs_active VNET(pf_altqs_active) 2307 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 2308 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 2309 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 2310 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 2311 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 2312 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 2313 2314 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 2315 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 2316 2317 #ifdef PF_WANT_32_TO_64_COUNTER 2318 LIST_HEAD(allkiflist_head, pfi_kkif); 2319 VNET_DECLARE(struct allkiflist_head, pf_allkiflist); 2320 #define V_pf_allkiflist VNET(pf_allkiflist) 2321 VNET_DECLARE(size_t, pf_allkifcount); 2322 #define V_pf_allkifcount VNET(pf_allkifcount) 2323 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker); 2324 #define V_pf_kifmarker VNET(pf_kifmarker) 2325 2326 LIST_HEAD(allrulelist_head, pf_krule); 2327 VNET_DECLARE(struct allrulelist_head, pf_allrulelist); 2328 #define V_pf_allrulelist VNET(pf_allrulelist) 2329 VNET_DECLARE(size_t, pf_allrulecount); 2330 #define V_pf_allrulecount VNET(pf_allrulecount) 2331 VNET_DECLARE(struct pf_krule *, pf_rulemarker); 2332 #define V_pf_rulemarker VNET(pf_rulemarker) 2333 #endif 2334 2335 void unhandled_af(int) __dead2; 2336 int pf_start(void); 2337 int pf_stop(void); 2338 void pf_initialize(void); 2339 void pf_mtag_initialize(void); 2340 void pf_mtag_cleanup(void); 2341 void pf_cleanup(void); 2342 2343 struct pf_mtag *pf_get_mtag(struct mbuf *); 2344 2345 extern void pf_calc_skip_steps(struct pf_krulequeue *); 2346 #ifdef ALTQ 2347 extern void pf_altq_ifnet_event(struct ifnet *, int); 2348 #endif 2349 VNET_DECLARE(uma_zone_t, pf_state_z); 2350 #define V_pf_state_z VNET(pf_state_z) 2351 VNET_DECLARE(uma_zone_t, pf_state_key_z); 2352 #define V_pf_state_key_z VNET(pf_state_key_z) 2353 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z); 2354 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z) 2355 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 2356 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 2357 2358 extern void pf_purge_thread(void *); 2359 extern void pf_unload_vnet_purge(void); 2360 extern void pf_intr(void *); 2361 extern void pf_purge_expired_src_nodes(void); 2362 2363 extern int pf_remove_state(struct pf_kstate *); 2364 extern int pf_state_insert(struct pfi_kkif *, 2365 struct pfi_kkif *, 2366 struct pf_state_key *, 2367 struct pf_state_key *, 2368 struct pf_kstate *); 2369 extern struct pf_kstate *pf_alloc_state(int); 2370 extern void pf_free_state(struct pf_kstate *); 2371 extern void pf_killstates(struct pf_kstate_kill *, 2372 unsigned int *); 2373 extern unsigned int pf_clear_states(const struct pf_kstate_kill *); 2374 2375 static __inline void 2376 pf_ref_state(struct pf_kstate *s) 2377 { 2378 2379 refcount_acquire(&s->refs); 2380 } 2381 2382 static __inline int 2383 pf_release_state(struct pf_kstate *s) 2384 { 2385 2386 if (refcount_release(&s->refs)) { 2387 pf_free_state(s); 2388 return (1); 2389 } else 2390 return (0); 2391 } 2392 2393 static __inline int 2394 pf_release_staten(struct pf_kstate *s, u_int n) 2395 { 2396 2397 if (refcount_releasen(&s->refs, n)) { 2398 pf_free_state(s); 2399 return (1); 2400 } else 2401 return (0); 2402 } 2403 2404 static __inline uint64_t 2405 pf_get_uptime(void) 2406 { 2407 struct timeval t; 2408 microuptime(&t); 2409 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2410 } 2411 2412 static __inline uint64_t 2413 pf_get_time(void) 2414 { 2415 struct timeval t; 2416 microtime(&t); 2417 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2418 } 2419 2420 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 2421 extern struct pf_kstate *pf_find_state_all( 2422 const struct pf_state_key_cmp *, 2423 u_int, int *); 2424 extern bool pf_find_state_all_exists( 2425 const struct pf_state_key_cmp *, 2426 u_int); 2427 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp 2428 *endpoint); 2429 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af, 2430 struct pf_addr *src_addr, uint16_t src_port, 2431 struct pf_addr *nat_addr, uint16_t nat_port); 2432 extern int pf_udp_mapping_insert(struct pf_udp_mapping 2433 *mapping); 2434 extern void pf_udp_mapping_release(struct pf_udp_mapping 2435 *mapping); 2436 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t); 2437 extern bool pf_src_node_exists(struct pf_ksrc_node **, 2438 struct pf_srchash *); 2439 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 2440 struct pf_krule *, sa_family_t, 2441 struct pf_srchash **, pf_sn_types_t, bool); 2442 extern void pf_unlink_src_node(struct pf_ksrc_node *); 2443 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 2444 extern void pf_print_state(struct pf_kstate *); 2445 extern void pf_print_flags(uint16_t); 2446 extern int pf_addr_wrap_neq(struct pf_addr_wrap *, 2447 struct pf_addr_wrap *); 2448 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2449 u_int8_t); 2450 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 2451 u_int16_t, u_int16_t, u_int8_t); 2452 2453 VNET_DECLARE(struct ifnet *, sync_ifp); 2454 #define V_sync_ifp VNET(sync_ifp); 2455 VNET_DECLARE(struct pf_krule, pf_default_rule); 2456 #define V_pf_default_rule VNET(pf_default_rule) 2457 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *, 2458 sa_family_t); 2459 void pf_free_rule(struct pf_krule *); 2460 2461 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 2462 int pf_scan_sctp(struct pf_pdesc *); 2463 #if defined(INET) || defined(INET6) 2464 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *, 2465 struct pf_rule_actions *); 2466 #endif 2467 #ifdef INET 2468 int pf_normalize_ip(u_short *, struct pf_pdesc *); 2469 #endif /* INET */ 2470 2471 #ifdef INET6 2472 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *); 2473 void pf_poolmask(struct pf_addr *, struct pf_addr*, 2474 struct pf_addr *, struct pf_addr *, sa_family_t); 2475 void pf_addr_inc(struct pf_addr *, sa_family_t); 2476 int pf_max_frag_size(struct mbuf *); 2477 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, 2478 struct ifnet *, bool); 2479 #endif /* INET6 */ 2480 2481 int pf_multihome_scan_init(int, int, struct pf_pdesc *); 2482 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *); 2483 2484 u_int32_t pf_new_isn(struct pf_kstate *); 2485 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, u_short *, 2486 sa_family_t); 2487 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2488 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2489 u_int8_t); 2490 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2491 int pf_patch_16(struct pf_pdesc *, void *, u_int16_t, bool); 2492 int pf_patch_32(struct pf_pdesc *, void *, u_int32_t, bool); 2493 void pf_send_deferred_syn(struct pf_kstate *); 2494 int pf_match_addr(u_int8_t, const struct pf_addr *, 2495 const struct pf_addr *, const struct pf_addr *, sa_family_t); 2496 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *, 2497 const struct pf_addr *, sa_family_t); 2498 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2499 2500 void pf_normalize_init(void); 2501 void pf_normalize_cleanup(void); 2502 int pf_normalize_tcp(struct pf_pdesc *); 2503 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2504 int pf_normalize_tcp_init(struct pf_pdesc *, 2505 struct tcphdr *, struct pf_state_peer *); 2506 int pf_normalize_tcp_stateful(struct pf_pdesc *, 2507 u_short *, struct tcphdr *, struct pf_kstate *, 2508 struct pf_state_peer *, struct pf_state_peer *, int *); 2509 int pf_normalize_sctp_init(struct pf_pdesc *, 2510 struct pf_state_peer *, struct pf_state_peer *); 2511 int pf_normalize_sctp(struct pf_pdesc *); 2512 u_int32_t 2513 pf_state_expires(const struct pf_kstate *); 2514 void pf_purge_expired_fragments(void); 2515 void pf_purge_fragments(uint32_t); 2516 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2517 int); 2518 int pf_socket_lookup(struct pf_pdesc *); 2519 struct pf_state_key *pf_alloc_state_key(int); 2520 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t, 2521 struct pf_addr *, u_int16_t, u_int16_t, int); 2522 int pf_translate_af(struct pf_pdesc *); 2523 void pfr_initialize(void); 2524 void pfr_cleanup(void); 2525 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2526 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2527 u_int64_t, int, int, int); 2528 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t, 2529 pf_addr_filter_func_t); 2530 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2531 struct pfr_ktable * 2532 pfr_attach_table(struct pf_kruleset *, char *); 2533 struct pfr_ktable * 2534 pfr_eth_attach_table(struct pf_keth_ruleset *, char *); 2535 void pfr_detach_table(struct pfr_ktable *); 2536 int pfr_clr_tables(struct pfr_table *, int *, int); 2537 int pfr_add_tables(struct pfr_table *, int, int *, int); 2538 int pfr_del_tables(struct pfr_table *, int, int *, int); 2539 int pfr_table_count(struct pfr_table *, int); 2540 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2541 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2542 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2543 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2544 int pfr_clr_addrs(struct pfr_table *, int *, int); 2545 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, time_t); 2546 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2547 int); 2548 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2549 int); 2550 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2551 int *, int *, int *, int, u_int32_t); 2552 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2553 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2554 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2555 int); 2556 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2557 int); 2558 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2559 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2560 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2561 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2562 int *, u_int32_t, int); 2563 2564 MALLOC_DECLARE(PFI_MTYPE); 2565 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2566 #define V_pfi_all VNET(pfi_all) 2567 2568 void pfi_initialize(void); 2569 void pfi_initialize_vnet(void); 2570 void pfi_cleanup(void); 2571 void pfi_cleanup_vnet(void); 2572 void pfi_kkif_ref(struct pfi_kkif *); 2573 void pfi_kkif_unref(struct pfi_kkif *); 2574 struct pfi_kkif *pfi_kkif_find(const char *); 2575 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2576 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2577 void pfi_kkif_purge(void); 2578 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2579 sa_family_t); 2580 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2581 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2582 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2583 void pfi_update_status(const char *, struct pf_status *); 2584 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2585 int pfi_set_flags(const char *, int); 2586 int pfi_clear_flags(const char *, int); 2587 2588 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2589 int pf_tag_packet(struct pf_pdesc *, int); 2590 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2591 sa_family_t); 2592 2593 u_int16_t pf_get_mss(struct pf_pdesc *); 2594 u_int8_t pf_get_wscale(struct pf_pdesc *); 2595 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2596 const struct pf_addr *, const struct pf_addr *, 2597 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2598 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2599 u_int16_t, u_int16_t, u_int, int); 2600 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2601 const struct pf_addr *, const struct pf_addr *, 2602 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2603 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2604 u_int16_t, u_int16_t, int); 2605 2606 void pf_syncookies_init(void); 2607 void pf_syncookies_cleanup(void); 2608 int pf_get_syncookies(struct pfioc_nv *); 2609 int pf_set_syncookies(struct pfioc_nv *); 2610 int pf_synflood_check(struct pf_pdesc *); 2611 void pf_syncookie_send(struct pf_pdesc *); 2612 bool pf_syncookie_check(struct pf_pdesc *); 2613 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2614 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *); 2615 2616 VNET_DECLARE(struct pf_kstatus, pf_status); 2617 #define V_pf_status VNET(pf_status) 2618 2619 struct pf_limit { 2620 uma_zone_t zone; 2621 u_int limit; 2622 }; 2623 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2624 #define V_pf_limits VNET(pf_limits) 2625 2626 #endif /* _KERNEL */ 2627 2628 #ifdef _KERNEL 2629 struct pf_nl_pooladdr { 2630 u_int32_t action; 2631 u_int32_t ticket; 2632 u_int32_t nr; 2633 u_int32_t r_num; 2634 u_int8_t r_action; 2635 u_int8_t r_last; 2636 u_int8_t af; 2637 char anchor[MAXPATHLEN]; 2638 struct pf_pooladdr addr; 2639 /* Above this is identical to pfioc_pooladdr */ 2640 int which; 2641 }; 2642 2643 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2644 #define V_pf_anchors VNET(pf_anchors) 2645 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2646 #define V_pf_main_anchor VNET(pf_main_anchor) 2647 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors); 2648 #define V_pf_keth_anchors VNET(pf_keth_anchors) 2649 #define pf_main_ruleset V_pf_main_anchor.ruleset 2650 2651 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor); 2652 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor) 2653 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth); 2654 #define V_pf_keth VNET(pf_keth) 2655 2656 void pf_init_kruleset(struct pf_kruleset *); 2657 void pf_init_keth(struct pf_keth_ruleset *); 2658 int pf_kanchor_setup(struct pf_krule *, 2659 const struct pf_kruleset *, const char *); 2660 int pf_kanchor_copyout(const struct pf_kruleset *, 2661 const struct pf_krule *, char *, size_t); 2662 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2663 const struct pf_krule *, nvlist_t *); 2664 void pf_kanchor_remove(struct pf_krule *); 2665 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2666 struct pf_kruleset *pf_find_kruleset(const char *); 2667 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2668 void pf_rs_initialize(void); 2669 2670 2671 struct pf_krule *pf_krule_alloc(void); 2672 2673 void pf_remove_if_empty_keth_ruleset( 2674 struct pf_keth_ruleset *); 2675 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *); 2676 struct pf_keth_anchor *pf_find_keth_anchor(const char *); 2677 int pf_keth_anchor_setup(struct pf_keth_rule *, 2678 const struct pf_keth_ruleset *, const char *); 2679 int pf_keth_anchor_nvcopyout( 2680 const struct pf_keth_ruleset *, 2681 const struct pf_keth_rule *, nvlist_t *); 2682 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *); 2683 void pf_keth_anchor_remove(struct pf_keth_rule *); 2684 2685 int pf_ioctl_getrules(struct pfioc_rule *); 2686 int pf_ioctl_addrule(struct pf_krule *, uint32_t, 2687 uint32_t, const char *, const char *, uid_t uid, 2688 pid_t); 2689 void pf_ioctl_clear_status(void); 2690 int pf_ioctl_get_timeout(int, int *); 2691 int pf_ioctl_set_timeout(int, int, int *); 2692 int pf_ioctl_get_limit(int, unsigned int *); 2693 int pf_ioctl_set_limit(int, unsigned int, unsigned int *); 2694 int pf_ioctl_begin_addrs(uint32_t *); 2695 int pf_ioctl_add_addr(struct pf_nl_pooladdr *); 2696 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *); 2697 int pf_ioctl_get_addr(struct pf_nl_pooladdr *); 2698 int pf_ioctl_get_rulesets(struct pfioc_ruleset *); 2699 int pf_ioctl_get_ruleset(struct pfioc_ruleset *); 2700 2701 void pf_krule_free(struct pf_krule *); 2702 void pf_krule_clear_counters(struct pf_krule *); 2703 void pf_addr_copyout(struct pf_addr_wrap *); 2704 #endif 2705 2706 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2707 int pf_osfp_add(struct pf_osfp_ioctl *); 2708 #ifdef _KERNEL 2709 struct pf_osfp_enlist * 2710 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *); 2711 #endif /* _KERNEL */ 2712 void pf_osfp_flush(void); 2713 int pf_osfp_get(struct pf_osfp_ioctl *); 2714 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2715 2716 #ifdef _KERNEL 2717 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t); 2718 2719 enum pf_test_status pf_step_into_anchor(struct pf_test_ctx *, struct pf_krule *); 2720 int pf_match_rule(struct pf_test_ctx *, struct pf_kruleset *); 2721 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *, 2722 int *, struct pf_keth_ruleset **, 2723 struct pf_keth_rule **, struct pf_keth_rule **, 2724 int *); 2725 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *, 2726 int *, struct pf_keth_ruleset **, 2727 struct pf_keth_rule **, struct pf_keth_rule **, 2728 int *); 2729 2730 u_short pf_map_addr(u_int8_t, struct pf_krule *, 2731 struct pf_addr *, struct pf_addr *, 2732 struct pfi_kkif **nkif, struct pf_addr *, 2733 struct pf_kpool *); 2734 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *, 2735 struct pf_addr *, struct pf_addr *, 2736 struct pfi_kkif **nkif, struct pf_addr *, 2737 struct pf_ksrc_node **, struct pf_srchash **, 2738 struct pf_kpool *, pf_sn_types_t); 2739 int pf_get_transaddr_af(struct pf_krule *, 2740 struct pf_pdesc *); 2741 u_short pf_get_translation(struct pf_test_ctx *); 2742 u_short pf_get_transaddr(struct pf_test_ctx *, 2743 struct pf_krule *, 2744 u_int8_t, struct pf_kpool *); 2745 int pf_translate_compat(struct pf_test_ctx *); 2746 2747 int pf_state_key_setup(struct pf_pdesc *, 2748 u_int16_t, u_int16_t, 2749 struct pf_state_key **sk, struct pf_state_key **nk); 2750 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *); 2751 void pf_rule_to_actions(struct pf_krule *, 2752 struct pf_rule_actions *); 2753 int pf_normalize_mss(struct pf_pdesc *pd); 2754 #if defined(INET) || defined(INET6) 2755 void pf_scrub(struct pf_pdesc *); 2756 #endif 2757 2758 struct pfi_kkif *pf_kkif_create(int); 2759 void pf_kkif_free(struct pfi_kkif *); 2760 void pf_kkif_zero(struct pfi_kkif *); 2761 2762 2763 /* NAT64 functions. */ 2764 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 2765 int inet_nat64_inet(const void *, void *, const void *, u_int8_t); 2766 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t); 2767 2768 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 2769 int inet_nat46_inet(const void *, void *, const void *, u_int8_t); 2770 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t); 2771 2772 #endif /* _KERNEL */ 2773 2774 #endif /* _NET_PFVAR_H_ */ 2775