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 static inline __dead2 void 575 unhandled_af(int af) 576 { 577 panic("unhandled af %d", af); 578 } 579 580 static void inline 581 pf_addrcpy(struct pf_addr *dst, const struct pf_addr *src, sa_family_t af) 582 { 583 switch (af) { 584 #ifdef INET 585 case AF_INET: 586 memcpy(&dst->v4, &src->v4, sizeof(dst->v4)); 587 break; 588 #endif /* INET */ 589 #ifdef INET6 590 case AF_INET6: 591 memcpy(&dst->v6, &src->v6, sizeof(dst->v6)); 592 break; 593 #endif /* INET6 */ 594 default: 595 unhandled_af(af); 596 } 597 } 598 #endif 599 600 /* 601 * XXX callers not FIB-aware in our version of pf yet. 602 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 603 */ 604 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 605 ( \ 606 (((aw)->type == PF_ADDR_NOROUTE && \ 607 pf_routable((x), (af), NULL, (rtid))) || \ 608 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 609 pf_routable((x), (af), (ifp), (rtid))) || \ 610 ((aw)->type == PF_ADDR_TABLE && \ 611 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 612 ((aw)->type == PF_ADDR_DYNIFTL && \ 613 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 614 ((aw)->type == PF_ADDR_RANGE && \ 615 !pf_match_addr_range(&(aw)->v.a.addr, \ 616 &(aw)->v.a.mask, (x), (af))) || \ 617 ((aw)->type == PF_ADDR_ADDRMASK && \ 618 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 619 !pf_match_addr(0, &(aw)->v.a.addr, \ 620 &(aw)->v.a.mask, (x), (af))))) != \ 621 (neg) \ 622 ) 623 624 #define PF_ALGNMNT(off) (((off) % 2) == 0) 625 626 /* 627 * At the moment there are no rules which have both NAT and RDR actions, 628 * apart from af-to rules, but those don't to source tracking for address 629 * translation. And the r->rdr pool is used for both NAT and RDR. 630 * So there is no PF_SN_RDR. 631 */ 632 enum pf_sn_types { PF_SN_LIMIT, PF_SN_NAT, PF_SN_ROUTE, PF_SN_MAX }; 633 typedef enum pf_sn_types pf_sn_types_t; 634 #define PF_SN_TYPE_NAMES { \ 635 "limit source-track", \ 636 "NAT/RDR sticky-address", \ 637 "route sticky-address", \ 638 NULL \ 639 } 640 641 #ifdef _KERNEL 642 643 struct pf_kpooladdr { 644 struct pf_addr_wrap addr; 645 TAILQ_ENTRY(pf_kpooladdr) entries; 646 char ifname[IFNAMSIZ]; 647 sa_family_t af; 648 struct pfi_kkif *kif; 649 }; 650 651 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 652 653 struct pf_kpool { 654 struct mtx mtx; 655 struct pf_kpalist list; 656 struct pf_kpooladdr *cur; 657 struct pf_poolhashkey key; 658 struct pf_addr counter; 659 struct pf_mape_portset mape; 660 int tblidx; 661 u_int16_t proxy_port[2]; 662 u_int8_t opts; 663 sa_family_t ipv6_nexthop_af; 664 }; 665 666 struct pf_rule_actions { 667 struct pf_addr rt_addr; 668 struct pfi_kkif *rt_kif; 669 int32_t rtableid; 670 uint32_t flags; 671 uint16_t qid; 672 uint16_t pqid; 673 uint16_t max_mss; 674 uint16_t dnpipe; 675 uint16_t dnrpipe; /* Reverse direction pipe */ 676 sa_family_t rt_af; 677 uint8_t log; 678 uint8_t set_tos; 679 uint8_t min_ttl; 680 uint8_t set_prio[2]; 681 uint8_t rt; 682 uint8_t allow_opts; 683 uint16_t max_pkt_size; 684 }; 685 686 union pf_keth_rule_ptr { 687 struct pf_keth_rule *ptr; 688 uint32_t nr; 689 }; 690 691 struct pf_keth_rule_addr { 692 uint8_t addr[ETHER_ADDR_LEN]; 693 uint8_t mask[ETHER_ADDR_LEN]; 694 bool neg; 695 uint8_t isset; 696 }; 697 698 struct pf_keth_anchor; 699 700 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule); 701 702 struct pf_keth_ruleset { 703 struct pf_keth_ruleq rules[2]; 704 struct pf_keth_rules { 705 struct pf_keth_ruleq *rules; 706 int open; 707 uint32_t ticket; 708 } active, inactive; 709 struct vnet *vnet; 710 struct pf_keth_anchor *anchor; 711 }; 712 713 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor); 714 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor); 715 struct pf_keth_anchor { 716 RB_ENTRY(pf_keth_anchor) entry_node; 717 RB_ENTRY(pf_keth_anchor) entry_global; 718 struct pf_keth_anchor *parent; 719 struct pf_keth_anchor_node children; 720 char name[PF_ANCHOR_NAME_SIZE]; 721 char path[MAXPATHLEN]; 722 struct pf_keth_ruleset ruleset; 723 int refcnt; /* anchor rules */ 724 uint8_t anchor_relative; 725 uint8_t anchor_wildcard; 726 }; 727 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node, 728 pf_keth_anchor_compare); 729 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global, 730 pf_keth_anchor_compare); 731 732 struct pf_keth_rule { 733 #define PFE_SKIP_IFP 0 734 #define PFE_SKIP_DIR 1 735 #define PFE_SKIP_PROTO 2 736 #define PFE_SKIP_SRC_ADDR 3 737 #define PFE_SKIP_DST_ADDR 4 738 #define PFE_SKIP_SRC_IP_ADDR 5 739 #define PFE_SKIP_DST_IP_ADDR 6 740 #define PFE_SKIP_COUNT 7 741 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT]; 742 743 TAILQ_ENTRY(pf_keth_rule) entries; 744 745 struct pf_keth_anchor *anchor; 746 u_int8_t anchor_relative; 747 u_int8_t anchor_wildcard; 748 749 uint32_t nr; 750 751 bool quick; 752 753 /* Filter */ 754 char ifname[IFNAMSIZ]; 755 struct pfi_kkif *kif; 756 bool ifnot; 757 uint8_t direction; 758 uint16_t proto; 759 struct pf_keth_rule_addr src, dst; 760 struct pf_rule_addr ipsrc, ipdst; 761 char match_tagname[PF_TAG_NAME_SIZE]; 762 uint16_t match_tag; 763 bool match_tag_not; 764 765 766 /* Stats */ 767 counter_u64_t evaluations; 768 counter_u64_t packets[2]; 769 counter_u64_t bytes[2]; 770 time_t *timestamp; 771 772 /* Action */ 773 char qname[PF_QNAME_SIZE]; 774 int qid; 775 char tagname[PF_TAG_NAME_SIZE]; 776 uint16_t tag; 777 char bridge_to_name[IFNAMSIZ]; 778 struct pfi_kkif *bridge_to; 779 uint8_t action; 780 uint16_t dnpipe; 781 uint32_t dnflags; 782 783 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 784 uint32_t ridentifier; 785 }; 786 787 struct pf_kthreshold { 788 uint32_t limit; 789 uint32_t seconds; 790 struct counter_rate *cr; 791 }; 792 793 RB_HEAD(pf_krule_global, pf_krule); 794 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare); 795 796 struct pf_krule { 797 struct pf_rule_addr src; 798 struct pf_rule_addr dst; 799 struct pf_krule *skip[PF_SKIP_COUNT]; 800 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 801 uint32_t ridentifier; 802 char ifname[IFNAMSIZ]; 803 char rcv_ifname[IFNAMSIZ]; 804 char qname[PF_QNAME_SIZE]; 805 char pqname[PF_QNAME_SIZE]; 806 char tagname[PF_TAG_NAME_SIZE]; 807 char match_tagname[PF_TAG_NAME_SIZE]; 808 809 char overload_tblname[PF_TABLE_NAME_SIZE]; 810 811 TAILQ_ENTRY(pf_krule) entries; 812 struct pf_kpool nat; 813 struct pf_kpool rdr; 814 struct pf_kpool route; 815 struct pf_kthreshold pktrate; 816 817 struct pf_counter_u64 evaluations; 818 struct pf_counter_u64 packets[2]; 819 struct pf_counter_u64 bytes[2]; 820 time_t *timestamp; 821 822 struct pfi_kkif *kif; 823 struct pfi_kkif *rcv_kif; 824 struct pf_kanchor *anchor; 825 struct pfr_ktable *overload_tbl; 826 827 pf_osfp_t os_fingerprint; 828 829 int32_t rtableid; 830 u_int32_t timeout[PFTM_MAX]; 831 u_int32_t max_states; 832 u_int32_t max_src_nodes; 833 u_int32_t max_src_states; 834 u_int32_t max_src_conn; 835 struct { 836 u_int32_t limit; 837 u_int32_t seconds; 838 } max_src_conn_rate; 839 uint16_t max_pkt_size; 840 u_int16_t qid; 841 u_int16_t pqid; 842 u_int16_t dnpipe; 843 u_int16_t dnrpipe; 844 u_int32_t free_flags; 845 u_int32_t nr; 846 u_int32_t prob; 847 uid_t cuid; 848 pid_t cpid; 849 850 counter_u64_t states_cur; 851 counter_u64_t states_tot; 852 counter_u64_t src_nodes[PF_SN_MAX]; 853 854 u_int16_t return_icmp; 855 u_int16_t return_icmp6; 856 u_int16_t max_mss; 857 u_int16_t tag; 858 u_int16_t match_tag; 859 u_int16_t scrub_flags; 860 861 struct pf_rule_uid uid; 862 struct pf_rule_gid gid; 863 864 u_int32_t rule_flag; 865 uint32_t rule_ref; 866 u_int8_t action; 867 u_int8_t direction; 868 u_int8_t log; 869 u_int8_t logif; 870 u_int8_t quick; 871 u_int8_t ifnot; 872 u_int8_t match_tag_not; 873 u_int8_t natpass; 874 875 u_int8_t keep_state; 876 sa_family_t af; 877 u_int8_t proto; 878 uint16_t type; 879 uint16_t code; 880 u_int8_t flags; 881 u_int8_t flagset; 882 u_int8_t min_ttl; 883 u_int8_t allow_opts; 884 u_int8_t rt; 885 u_int8_t return_ttl; 886 u_int8_t tos; 887 u_int8_t set_tos; 888 u_int8_t anchor_relative; 889 u_int8_t anchor_wildcard; 890 891 u_int8_t flush; 892 u_int8_t prio; 893 u_int8_t set_prio[2]; 894 sa_family_t naf; 895 u_int8_t rcvifnot; 896 897 struct { 898 struct pf_addr addr; 899 u_int16_t port; 900 } divert; 901 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH]; 902 RB_ENTRY(pf_krule) entry_global; 903 904 #ifdef PF_WANT_32_TO_64_COUNTER 905 LIST_ENTRY(pf_krule) allrulelist; 906 bool allrulelinked; 907 #endif 908 time_t exptime; 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_kthreshold conn_rate; 930 u_int32_t creation; 931 u_int32_t expire; 932 sa_family_t af; 933 sa_family_t raf; 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 } __packed; 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 } __packed; 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 *nr; 1174 struct pf_krule *tr; 1175 struct pf_krule **rm; 1176 struct pf_krule *a; 1177 struct pf_krule **am; 1178 struct pf_kruleset **rsm; 1179 struct pf_kruleset *arsm; 1180 struct pf_kruleset *aruleset; 1181 struct pf_state_key *sk; 1182 struct pf_state_key *nk; 1183 struct tcphdr *th; 1184 struct pf_udp_mapping *udp_mapping; 1185 struct pf_kpool *nat_pool; 1186 uint16_t virtual_type; 1187 uint16_t virtual_id; 1188 int depth; 1189 }; 1190 1191 #define PF_ANCHOR_STACK_MAX 32 1192 #endif 1193 1194 /* 1195 * Unified state structures for pulling states out of the kernel 1196 * used by pfsync(4) and the pf(4) ioctl. 1197 */ 1198 struct pfsync_state_key { 1199 struct pf_addr addr[2]; 1200 u_int16_t port[2]; 1201 }; 1202 1203 struct pfsync_state_1301 { 1204 u_int64_t id; 1205 char ifname[IFNAMSIZ]; 1206 struct pfsync_state_key key[2]; 1207 struct pf_state_peer_export src; 1208 struct pf_state_peer_export dst; 1209 struct pf_addr rt_addr; 1210 u_int32_t rule; 1211 u_int32_t anchor; 1212 u_int32_t nat_rule; 1213 u_int32_t creation; 1214 u_int32_t expire; 1215 u_int32_t packets[2][2]; 1216 u_int32_t bytes[2][2]; 1217 u_int32_t creatorid; 1218 sa_family_t af; 1219 u_int8_t proto; 1220 u_int8_t direction; 1221 u_int8_t __spare[2]; 1222 u_int8_t log; 1223 u_int8_t state_flags; 1224 u_int8_t timeout; 1225 u_int8_t sync_flags; 1226 u_int8_t updates; /* unused */ 1227 } __packed; 1228 1229 struct pfsync_state_1400 { 1230 /* The beginning of the struct is compatible with pfsync_state_1301 */ 1231 u_int64_t id; 1232 char ifname[IFNAMSIZ]; 1233 struct pfsync_state_key key[2]; 1234 struct pf_state_peer_export src; 1235 struct pf_state_peer_export dst; 1236 struct pf_addr rt_addr; 1237 u_int32_t rule; 1238 u_int32_t anchor; 1239 u_int32_t nat_rule; 1240 u_int32_t creation; 1241 u_int32_t expire; 1242 u_int32_t packets[2][2]; 1243 u_int32_t bytes[2][2]; 1244 u_int32_t creatorid; 1245 sa_family_t af; 1246 u_int8_t proto; 1247 u_int8_t direction; 1248 u_int16_t state_flags; 1249 u_int8_t log; 1250 u_int8_t __spare; 1251 u_int8_t timeout; 1252 u_int8_t sync_flags; 1253 u_int8_t updates; /* unused */ 1254 /* The rest is not */ 1255 u_int16_t qid; 1256 u_int16_t pqid; 1257 u_int16_t dnpipe; 1258 u_int16_t dnrpipe; 1259 int32_t rtableid; 1260 u_int8_t min_ttl; 1261 u_int8_t set_tos; 1262 u_int16_t max_mss; 1263 u_int8_t set_prio[2]; 1264 u_int8_t rt; 1265 char rt_ifname[IFNAMSIZ]; 1266 } __packed; 1267 1268 struct pfsync_state_1500 { 1269 /* The beginning of the struct is compatible with pfsync_state_1301 */ 1270 u_int64_t id; 1271 char ifname[IFNAMSIZ]; 1272 struct pfsync_state_key key[2]; 1273 struct pf_state_peer_export src; 1274 struct pf_state_peer_export dst; 1275 struct pf_addr rt_addr; 1276 u_int32_t rule; 1277 u_int32_t anchor; 1278 u_int32_t nat_rule; 1279 u_int32_t creation; 1280 u_int32_t expire; 1281 u_int32_t packets[2][2]; 1282 u_int32_t bytes[2][2]; 1283 u_int32_t creatorid; 1284 /* The rest is not, use the opportunity to fix alignment */ 1285 char tagname[PF_TAG_NAME_SIZE]; 1286 char rt_ifname[IFNAMSIZ]; 1287 char orig_ifname[IFNAMSIZ]; 1288 int32_t rtableid; 1289 u_int16_t state_flags; 1290 u_int16_t qid; 1291 u_int16_t pqid; 1292 u_int16_t dnpipe; 1293 u_int16_t dnrpipe; 1294 u_int16_t max_mss; 1295 sa_family_t wire_af; 1296 sa_family_t stack_af; 1297 sa_family_t rt_af; 1298 u_int8_t wire_proto; 1299 u_int8_t stack_proto; 1300 u_int8_t log; 1301 u_int8_t timeout; 1302 u_int8_t direction; 1303 u_int8_t rt; 1304 u_int8_t min_ttl; 1305 u_int8_t set_tos; 1306 u_int8_t set_prio[2]; 1307 u_int8_t spare[3]; /* Improve struct alignment */ 1308 } __packed; 1309 1310 union pfsync_state_union { 1311 struct pfsync_state_1301 pfs_1301; 1312 struct pfsync_state_1400 pfs_1400; 1313 struct pfsync_state_1500 pfs_1500; 1314 } __packed; 1315 1316 #ifdef _KERNEL 1317 /* pfsync */ 1318 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int); 1319 typedef void pfsync_insert_state_t(struct pf_kstate *); 1320 typedef void pfsync_update_state_t(struct pf_kstate *); 1321 typedef void pfsync_delete_state_t(struct pf_kstate *); 1322 typedef void pfsync_clear_states_t(u_int32_t, const char *); 1323 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 1324 typedef void pfsync_detach_ifnet_t(struct ifnet *); 1325 typedef void pflow_export_state_t(const struct pf_kstate *); 1326 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *); 1327 1328 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 1329 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 1330 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 1331 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 1332 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 1333 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 1334 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 1335 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 1336 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 1337 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 1338 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 1339 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 1340 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr); 1341 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr) 1342 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 1343 1344 void pfsync_state_export_1301(struct pfsync_state_1301 *, 1345 struct pf_kstate *); 1346 void pfsync_state_export_1400(struct pfsync_state_1400 *, 1347 struct pf_kstate *); 1348 void pfsync_state_export_1500(struct pfsync_state_1500 *, 1349 struct pf_kstate *); 1350 void pf_state_export(struct pf_state_export *, 1351 struct pf_kstate *); 1352 1353 /* pflog */ 1354 struct pf_kruleset; 1355 struct pf_pdesc; 1356 typedef int pflog_packet_t(uint8_t, u_int8_t, 1357 struct pf_krule *, struct pf_krule *, struct pf_kruleset *, 1358 struct pf_pdesc *, int, struct pf_krule *); 1359 extern pflog_packet_t *pflog_packet_ptr; 1360 1361 #endif /* _KERNEL */ 1362 1363 #define PFSYNC_FLAG_SRCNODE 0x04 1364 #define PFSYNC_FLAG_NATSRCNODE 0x08 1365 1366 /* for copies to/from network byte order */ 1367 /* ioctl interface also uses network byte order */ 1368 void pf_state_peer_hton(const struct pf_state_peer *, 1369 struct pf_state_peer_export *); 1370 void pf_state_peer_ntoh(const struct pf_state_peer_export *, 1371 struct pf_state_peer *); 1372 1373 #define pf_state_counter_hton(s,d) do { \ 1374 d[0] = htonl((s>>32)&0xffffffff); \ 1375 d[1] = htonl(s&0xffffffff); \ 1376 } while (0) 1377 1378 #define pf_state_counter_from_pfsync(s) \ 1379 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1380 1381 #define pf_state_counter_ntoh(s,d) do { \ 1382 d = ntohl(s[0]); \ 1383 d = d<<32; \ 1384 d += ntohl(s[1]); \ 1385 } while (0) 1386 1387 TAILQ_HEAD(pf_krulequeue, pf_krule); 1388 1389 struct pf_kanchor; 1390 1391 struct pf_kruleset { 1392 struct { 1393 struct pf_krulequeue queues[2]; 1394 struct { 1395 struct pf_krulequeue *ptr; 1396 u_int32_t rcount; 1397 u_int32_t ticket; 1398 int open; 1399 struct pf_krule_global *tree; 1400 } active, inactive; 1401 } rules[PF_RULESET_MAX]; 1402 struct pf_kanchor *anchor; 1403 u_int32_t tticket; 1404 int tables; 1405 int topen; 1406 }; 1407 1408 RB_HEAD(pf_kanchor_global, pf_kanchor); 1409 RB_HEAD(pf_kanchor_node, pf_kanchor); 1410 struct pf_kanchor { 1411 RB_ENTRY(pf_kanchor) entry_global; 1412 RB_ENTRY(pf_kanchor) entry_node; 1413 struct pf_kanchor *parent; 1414 struct pf_kanchor_node children; 1415 char name[PF_ANCHOR_NAME_SIZE]; 1416 char path[MAXPATHLEN]; 1417 struct pf_kruleset ruleset; 1418 int refcnt; /* anchor rules */ 1419 }; 1420 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1421 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1422 1423 #define PF_RESERVED_ANCHOR "_pf" 1424 1425 #define PFR_TFLAG_PERSIST 0x00000001 1426 #define PFR_TFLAG_CONST 0x00000002 1427 #define PFR_TFLAG_ACTIVE 0x00000004 1428 #define PFR_TFLAG_INACTIVE 0x00000008 1429 #define PFR_TFLAG_REFERENCED 0x00000010 1430 #define PFR_TFLAG_REFDANCHOR 0x00000020 1431 #define PFR_TFLAG_COUNTERS 0x00000040 1432 /* Adjust masks below when adding flags. */ 1433 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1434 PFR_TFLAG_CONST | \ 1435 PFR_TFLAG_COUNTERS) 1436 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1437 PFR_TFLAG_INACTIVE | \ 1438 PFR_TFLAG_REFERENCED | \ 1439 PFR_TFLAG_REFDANCHOR) 1440 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1441 PFR_TFLAG_CONST | \ 1442 PFR_TFLAG_ACTIVE | \ 1443 PFR_TFLAG_INACTIVE | \ 1444 PFR_TFLAG_REFERENCED | \ 1445 PFR_TFLAG_REFDANCHOR | \ 1446 PFR_TFLAG_COUNTERS) 1447 1448 struct pf_keth_anchor_stackframe; 1449 1450 struct pfr_table { 1451 char pfrt_anchor[MAXPATHLEN]; 1452 char pfrt_name[PF_TABLE_NAME_SIZE]; 1453 u_int32_t pfrt_flags; 1454 u_int8_t pfrt_fback; 1455 }; 1456 1457 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1458 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1459 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1460 1461 struct pfr_addr { 1462 union { 1463 struct in_addr _pfra_ip4addr; 1464 struct in6_addr _pfra_ip6addr; 1465 } pfra_u; 1466 u_int8_t pfra_af; 1467 u_int8_t pfra_net; 1468 u_int8_t pfra_not; 1469 u_int8_t pfra_fback; 1470 }; 1471 #define pfra_ip4addr pfra_u._pfra_ip4addr 1472 #define pfra_ip6addr pfra_u._pfra_ip6addr 1473 1474 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1475 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1476 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1477 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1478 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1479 1480 struct pfr_astats { 1481 struct pfr_addr pfras_a; 1482 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1483 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1484 time_t pfras_tzero; 1485 }; 1486 1487 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1488 1489 struct pfr_tstats { 1490 struct pfr_table pfrts_t; 1491 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1492 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1493 u_int64_t pfrts_match; 1494 u_int64_t pfrts_nomatch; 1495 time_t pfrts_tzero; 1496 int pfrts_cnt; 1497 int pfrts_refcnt[PFR_REFCNT_MAX]; 1498 }; 1499 1500 #ifdef _KERNEL 1501 1502 struct pfr_kstate_counter { 1503 counter_u64_t pkc_pcpu; 1504 u_int64_t pkc_zero; 1505 }; 1506 1507 static inline int 1508 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1509 { 1510 1511 pfrc->pkc_zero = 0; 1512 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1513 if (pfrc->pkc_pcpu == NULL) 1514 return (ENOMEM); 1515 return (0); 1516 } 1517 1518 static inline void 1519 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1520 { 1521 1522 counter_u64_free(pfrc->pkc_pcpu); 1523 } 1524 1525 static inline u_int64_t 1526 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1527 { 1528 u_int64_t c; 1529 1530 c = counter_u64_fetch(pfrc->pkc_pcpu); 1531 c -= pfrc->pkc_zero; 1532 return (c); 1533 } 1534 1535 static inline void 1536 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1537 { 1538 u_int64_t c; 1539 1540 c = counter_u64_fetch(pfrc->pkc_pcpu); 1541 pfrc->pkc_zero = c; 1542 } 1543 1544 static inline void 1545 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1546 { 1547 1548 counter_u64_add(pfrc->pkc_pcpu, n); 1549 } 1550 1551 struct pfr_ktstats { 1552 struct pfr_table pfrts_t; 1553 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1554 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1555 struct pfr_kstate_counter pfrkts_match; 1556 struct pfr_kstate_counter pfrkts_nomatch; 1557 time_t pfrkts_tzero; 1558 int pfrkts_cnt; 1559 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1560 }; 1561 1562 #endif /* _KERNEL */ 1563 1564 #define pfrts_name pfrts_t.pfrt_name 1565 #define pfrts_flags pfrts_t.pfrt_flags 1566 1567 #ifndef _SOCKADDR_UNION_DEFINED 1568 #define _SOCKADDR_UNION_DEFINED 1569 union sockaddr_union { 1570 struct sockaddr sa; 1571 struct sockaddr_in sin; 1572 struct sockaddr_in6 sin6; 1573 }; 1574 #endif /* _SOCKADDR_UNION_DEFINED */ 1575 1576 struct pfr_kcounters { 1577 counter_u64_t pfrkc_counters; 1578 time_t pfrkc_tzero; 1579 }; 1580 #define pfr_kentry_counter(kc, dir, op, t) \ 1581 ((kc)->pfrkc_counters + \ 1582 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1583 1584 #ifdef _KERNEL 1585 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1586 struct pfr_kentry { 1587 struct radix_node pfrke_node[2]; 1588 union sockaddr_union pfrke_sa; 1589 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1590 struct pfr_kcounters pfrke_counters; 1591 u_int8_t pfrke_af; 1592 u_int8_t pfrke_net; 1593 u_int8_t pfrke_not; 1594 u_int8_t pfrke_mark; 1595 }; 1596 1597 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1598 RB_HEAD(pfr_ktablehead, pfr_ktable); 1599 struct pfr_ktable { 1600 struct pfr_ktstats pfrkt_kts; 1601 RB_ENTRY(pfr_ktable) pfrkt_tree; 1602 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1603 struct radix_node_head *pfrkt_ip4; 1604 struct radix_node_head *pfrkt_ip6; 1605 struct pfr_ktable *pfrkt_shadow; 1606 struct pfr_ktable *pfrkt_root; 1607 struct pf_kruleset *pfrkt_rs; 1608 long pfrkt_larg; 1609 int pfrkt_nflags; 1610 }; 1611 #define pfrkt_t pfrkt_kts.pfrts_t 1612 #define pfrkt_name pfrkt_t.pfrt_name 1613 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1614 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1615 #define pfrkt_flags pfrkt_t.pfrt_flags 1616 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1617 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1618 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1619 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1620 #define pfrkt_match pfrkt_kts.pfrkts_match 1621 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1622 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1623 #endif 1624 1625 #ifdef _KERNEL 1626 struct pfi_kkif { 1627 char pfik_name[IFNAMSIZ]; 1628 union { 1629 RB_ENTRY(pfi_kkif) _pfik_tree; 1630 LIST_ENTRY(pfi_kkif) _pfik_list; 1631 } _pfik_glue; 1632 #define pfik_tree _pfik_glue._pfik_tree 1633 #define pfik_list _pfik_glue._pfik_list 1634 struct pf_counter_u64 pfik_packets[2][2][2]; 1635 struct pf_counter_u64 pfik_bytes[2][2][2]; 1636 time_t pfik_tzero; 1637 u_int pfik_flags; 1638 struct ifnet *pfik_ifp; 1639 struct ifg_group *pfik_group; 1640 u_int pfik_rulerefs; 1641 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1642 #ifdef PF_WANT_32_TO_64_COUNTER 1643 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1644 #endif 1645 }; 1646 #endif 1647 1648 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1649 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1650 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */ 1651 1652 #ifdef _KERNEL 1653 struct pf_sctp_multihome_job; 1654 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job); 1655 1656 struct pf_pdesc { 1657 struct { 1658 int done; 1659 uid_t uid; 1660 gid_t gid; 1661 } lookup; 1662 u_int64_t tot_len; /* Make Mickey money */ 1663 union pf_headers { 1664 struct tcphdr tcp; 1665 struct udphdr udp; 1666 struct sctphdr sctp; 1667 struct icmp icmp; 1668 #ifdef INET6 1669 struct icmp6_hdr icmp6; 1670 #endif /* INET6 */ 1671 char any[0]; 1672 } hdr; 1673 1674 struct pf_addr nsaddr; /* src address after NAT */ 1675 struct pf_addr ndaddr; /* dst address after NAT */ 1676 1677 struct pfi_kkif *kif; /* incomming interface */ 1678 struct mbuf *m; 1679 1680 struct pf_addr *src; /* src address */ 1681 struct pf_addr *dst; /* dst address */ 1682 struct pf_addr osrc; 1683 struct pf_addr odst; 1684 u_int16_t *pcksum; /* proto cksum */ 1685 u_int16_t *sport; 1686 u_int16_t *dport; 1687 u_int16_t osport; 1688 u_int16_t odport; 1689 u_int16_t nsport; /* src port after NAT */ 1690 u_int16_t ndport; /* dst port after NAT */ 1691 struct pf_mtag *pf_mtag; 1692 struct pf_rule_actions act; 1693 1694 u_int32_t off; /* protocol header offset */ 1695 bool df; /* IPv4 Don't fragment flag. */ 1696 u_int32_t hdrlen; /* protocol header length */ 1697 u_int32_t p_len; /* total length of protocol payload */ 1698 u_int32_t extoff; /* extentsion header offset */ 1699 u_int32_t fragoff; /* fragment header offset */ 1700 u_int32_t jumbolen; /* length from v6 jumbo header */ 1701 u_int32_t badopts; /* v4 options or v6 routing headers */ 1702 #define PF_OPT_OTHER 0x0001 1703 #define PF_OPT_JUMBO 0x0002 1704 #define PF_OPT_ROUTER_ALERT 0x0004 1705 1706 u_int16_t *ip_sum; 1707 u_int16_t flags; /* Let SCRUB trigger behavior in 1708 * state code. Easier than tags */ 1709 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1710 u_int16_t virtual_proto; 1711 #define PF_VPROTO_FRAGMENT 256 1712 sa_family_t af; 1713 sa_family_t naf; 1714 u_int8_t proto; 1715 u_int8_t tos; 1716 u_int8_t ttl; 1717 u_int8_t dir; /* direction */ 1718 u_int8_t sidx; /* key index for source */ 1719 u_int8_t didx; /* key index for destination */ 1720 #define PFDESC_SCTP_INIT 0x0001 1721 #define PFDESC_SCTP_INIT_ACK 0x0002 1722 #define PFDESC_SCTP_COOKIE 0x0004 1723 #define PFDESC_SCTP_COOKIE_ACK 0x0008 1724 #define PFDESC_SCTP_ABORT 0x0010 1725 #define PFDESC_SCTP_SHUTDOWN 0x0020 1726 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040 1727 #define PFDESC_SCTP_DATA 0x0080 1728 #define PFDESC_SCTP_ASCONF 0x0100 1729 #define PFDESC_SCTP_HEARTBEAT 0x0200 1730 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400 1731 #define PFDESC_SCTP_OTHER 0x0800 1732 #define PFDESC_SCTP_ADD_IP 0x1000 1733 u_int16_t sctp_flags; 1734 u_int32_t sctp_initiate_tag; 1735 u_int16_t sctp_dummy_sum; 1736 struct pf_krule *related_rule; 1737 1738 struct pf_sctp_multihome_jobs sctp_multihome_jobs; 1739 }; 1740 1741 struct pf_sctp_multihome_job { 1742 TAILQ_ENTRY(pf_sctp_multihome_job) next; 1743 struct pf_pdesc pd; 1744 struct pf_addr src; 1745 struct pf_addr dst; 1746 int op; 1747 }; 1748 1749 #endif 1750 1751 /* flags for RDR options */ 1752 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1753 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1754 1755 /* UDP state enumeration */ 1756 #define PFUDPS_NO_TRAFFIC 0 1757 #define PFUDPS_SINGLE 1 1758 #define PFUDPS_MULTIPLE 2 1759 1760 #define PFUDPS_NSTATES 3 /* number of state levels */ 1761 1762 #define PFUDPS_NAMES { \ 1763 "NO_TRAFFIC", \ 1764 "SINGLE", \ 1765 "MULTIPLE", \ 1766 NULL \ 1767 } 1768 1769 /* Other protocol state enumeration */ 1770 #define PFOTHERS_NO_TRAFFIC 0 1771 #define PFOTHERS_SINGLE 1 1772 #define PFOTHERS_MULTIPLE 2 1773 1774 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1775 1776 #define PFOTHERS_NAMES { \ 1777 "NO_TRAFFIC", \ 1778 "SINGLE", \ 1779 "MULTIPLE", \ 1780 NULL \ 1781 } 1782 1783 #define ACTION_SET(a, x) \ 1784 do { \ 1785 if ((a) != NULL) \ 1786 *(a) = (x); \ 1787 } while (0) 1788 1789 #define REASON_SET(a, x) \ 1790 do { \ 1791 SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \ 1792 if ((a) != NULL) \ 1793 *(a) = (x); \ 1794 if (x < PFRES_MAX) \ 1795 counter_u64_add(V_pf_status.counters[x], 1); \ 1796 } while (0) 1797 1798 enum pf_syncookies_mode { 1799 PF_SYNCOOKIES_NEVER = 0, 1800 PF_SYNCOOKIES_ALWAYS = 1, 1801 PF_SYNCOOKIES_ADAPTIVE = 2, 1802 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1803 }; 1804 1805 #define PF_SYNCOOKIES_HIWATPCT 25 1806 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1807 1808 #ifdef _KERNEL 1809 struct pf_kstatus { 1810 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1811 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1812 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1813 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1814 counter_u64_t ncounters[NCNT_MAX]; 1815 uint32_t states; 1816 uint32_t src_nodes; 1817 uint32_t running; 1818 uint32_t since; 1819 uint32_t debug; 1820 uint32_t hostid; 1821 char ifname[IFNAMSIZ]; 1822 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1823 bool keep_counters; 1824 enum pf_syncookies_mode syncookies_mode; 1825 bool syncookies_active; 1826 uint64_t syncookies_inflight[2]; 1827 uint32_t states_halfopen; 1828 uint32_t reass; 1829 }; 1830 #endif 1831 1832 struct pf_divert { 1833 union { 1834 struct in_addr ipv4; 1835 struct in6_addr ipv6; 1836 } addr; 1837 u_int16_t port; 1838 }; 1839 1840 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1841 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1842 1843 struct pf_fragment_tag { 1844 uint16_t ft_hdrlen; /* header length of reassembled pkt */ 1845 uint16_t ft_extoff; /* last extension header offset or 0 */ 1846 uint16_t ft_maxlen; /* maximum fragment payload length */ 1847 uint32_t ft_id; /* fragment id */ 1848 }; 1849 1850 /* 1851 * Limit the length of the fragment queue traversal. Remember 1852 * search entry points based on the fragment offset. 1853 */ 1854 #define PF_FRAG_ENTRY_POINTS 16 1855 1856 /* 1857 * The number of entries in the fragment queue must be limited 1858 * to avoid DoS by linear searching. Instead of a global limit, 1859 * use a limit per entry point. For large packets these sum up. 1860 */ 1861 #define PF_FRAG_ENTRY_LIMIT 64 1862 1863 /* 1864 * ioctl parameter structures 1865 */ 1866 1867 struct pfioc_pooladdr { 1868 u_int32_t action; 1869 u_int32_t ticket; 1870 u_int32_t nr; 1871 u_int32_t r_num; 1872 u_int8_t r_action; 1873 u_int8_t r_last; 1874 u_int8_t af; 1875 char anchor[MAXPATHLEN]; 1876 struct pf_pooladdr addr; 1877 }; 1878 1879 struct pfioc_rule { 1880 u_int32_t action; 1881 u_int32_t ticket; 1882 u_int32_t pool_ticket; 1883 u_int32_t nr; 1884 char anchor[MAXPATHLEN]; 1885 char anchor_call[MAXPATHLEN]; 1886 struct pf_rule rule; 1887 }; 1888 1889 struct pfioc_natlook { 1890 struct pf_addr saddr; 1891 struct pf_addr daddr; 1892 struct pf_addr rsaddr; 1893 struct pf_addr rdaddr; 1894 u_int16_t sport; 1895 u_int16_t dport; 1896 u_int16_t rsport; 1897 u_int16_t rdport; 1898 sa_family_t af; 1899 u_int8_t proto; 1900 u_int8_t direction; 1901 }; 1902 1903 struct pfioc_state { 1904 struct pfsync_state_1301 state; 1905 }; 1906 1907 struct pfioc_src_node_kill { 1908 sa_family_t psnk_af; 1909 struct pf_rule_addr psnk_src; 1910 struct pf_rule_addr psnk_dst; 1911 u_int psnk_killed; 1912 }; 1913 1914 #ifdef _KERNEL 1915 struct pf_kstate_kill { 1916 struct pf_state_cmp psk_pfcmp; 1917 sa_family_t psk_af; 1918 int psk_proto; 1919 struct pf_rule_addr psk_src; 1920 struct pf_rule_addr psk_dst; 1921 struct pf_rule_addr psk_rt_addr; 1922 char psk_ifname[IFNAMSIZ]; 1923 char psk_label[PF_RULE_LABEL_SIZE]; 1924 u_int psk_killed; 1925 bool psk_kill_match; 1926 bool psk_nat; 1927 }; 1928 #endif 1929 1930 struct pfioc_state_kill { 1931 struct pf_state_cmp psk_pfcmp; 1932 sa_family_t psk_af; 1933 int psk_proto; 1934 struct pf_rule_addr psk_src; 1935 struct pf_rule_addr psk_dst; 1936 char psk_ifname[IFNAMSIZ]; 1937 char psk_label[PF_RULE_LABEL_SIZE]; 1938 u_int psk_killed; 1939 }; 1940 1941 struct pfioc_states { 1942 int ps_len; 1943 union { 1944 void *ps_buf; 1945 struct pfsync_state_1301 *ps_states; 1946 }; 1947 }; 1948 1949 struct pfioc_states_v2 { 1950 int ps_len; 1951 uint64_t ps_req_version; 1952 union { 1953 void *ps_buf; 1954 struct pf_state_export *ps_states; 1955 }; 1956 }; 1957 1958 struct pfioc_src_nodes { 1959 int psn_len; 1960 union { 1961 void *psn_buf; 1962 struct pf_src_node *psn_src_nodes; 1963 }; 1964 }; 1965 1966 struct pfioc_if { 1967 char ifname[IFNAMSIZ]; 1968 }; 1969 1970 struct pfioc_tm { 1971 int timeout; 1972 int seconds; 1973 }; 1974 1975 struct pfioc_limit { 1976 int index; 1977 unsigned limit; 1978 }; 1979 1980 struct pfioc_altq_v0 { 1981 u_int32_t action; 1982 u_int32_t ticket; 1983 u_int32_t nr; 1984 struct pf_altq_v0 altq; 1985 }; 1986 1987 struct pfioc_altq_v1 { 1988 u_int32_t action; 1989 u_int32_t ticket; 1990 u_int32_t nr; 1991 /* 1992 * Placed here so code that only uses the above parameters can be 1993 * written entirely in terms of the v0 or v1 type. 1994 */ 1995 u_int32_t version; 1996 struct pf_altq_v1 altq; 1997 }; 1998 1999 /* 2000 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 2001 * the latest version of struct pf_altq_vX as it has that struct as a 2002 * member. 2003 */ 2004 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 2005 2006 struct pfioc_qstats_v0 { 2007 u_int32_t ticket; 2008 u_int32_t nr; 2009 void *buf; 2010 int nbytes; 2011 u_int8_t scheduler; 2012 }; 2013 2014 struct pfioc_qstats_v1 { 2015 u_int32_t ticket; 2016 u_int32_t nr; 2017 void *buf; 2018 int nbytes; 2019 u_int8_t scheduler; 2020 /* 2021 * Placed here so code that only uses the above parameters can be 2022 * written entirely in terms of the v0 or v1 type. 2023 */ 2024 u_int32_t version; /* Requested version of stats struct */ 2025 }; 2026 2027 /* Latest version of struct pfioc_qstats_vX */ 2028 #define PFIOC_QSTATS_VERSION 1 2029 2030 struct pfioc_ruleset { 2031 u_int32_t nr; 2032 char path[MAXPATHLEN]; 2033 char name[PF_ANCHOR_NAME_SIZE]; 2034 }; 2035 2036 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 2037 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 2038 #define PF_RULESET_ETH (PF_RULESET_MAX+2) 2039 struct pfioc_trans { 2040 int size; /* number of elements */ 2041 int esize; /* size of each element in bytes */ 2042 struct pfioc_trans_e { 2043 int rs_num; 2044 char anchor[MAXPATHLEN]; 2045 u_int32_t ticket; 2046 } *array; 2047 }; 2048 2049 #define PFR_FLAG_START 0x00000001 2050 #define PFR_FLAG_DUMMY 0x00000002 2051 #define PFR_FLAG_FEEDBACK 0x00000004 2052 #define PFR_FLAG_CLSTATS 0x00000008 2053 #define PFR_FLAG_ADDRSTOO 0x00000010 2054 #define PFR_FLAG_REPLACE 0x00000020 2055 #define PFR_FLAG_ALLRSETS 0x00000040 2056 #define PFR_FLAG_DONE 0x00000080 2057 #define PFR_FLAG_ALLMASK 0x000000FF 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 int pf_start(void); 2336 int pf_stop(void); 2337 void pf_initialize(void); 2338 void pf_mtag_initialize(void); 2339 void pf_mtag_cleanup(void); 2340 void pf_cleanup(void); 2341 2342 struct pf_mtag *pf_get_mtag(struct mbuf *); 2343 2344 extern void pf_calc_skip_steps(struct pf_krulequeue *); 2345 #ifdef ALTQ 2346 extern void pf_altq_ifnet_event(struct ifnet *, int); 2347 #endif 2348 VNET_DECLARE(uma_zone_t, pf_state_z); 2349 #define V_pf_state_z VNET(pf_state_z) 2350 VNET_DECLARE(uma_zone_t, pf_state_key_z); 2351 #define V_pf_state_key_z VNET(pf_state_key_z) 2352 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z); 2353 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z) 2354 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 2355 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 2356 VNET_DECLARE(uma_zone_t, pf_anchor_z); 2357 #define V_pf_anchor_z VNET(pf_anchor_z) 2358 VNET_DECLARE(uma_zone_t, pf_eth_anchor_z); 2359 #define V_pf_eth_anchor_z VNET(pf_eth_anchor_z) 2360 2361 extern void pf_purge_thread(void *); 2362 extern void pf_unload_vnet_purge(void); 2363 extern void pf_intr(void *); 2364 extern void pf_purge_expired_src_nodes(void); 2365 2366 extern int pf_remove_state(struct pf_kstate *); 2367 extern int pf_state_insert(struct pfi_kkif *, 2368 struct pfi_kkif *, 2369 struct pf_state_key *, 2370 struct pf_state_key *, 2371 struct pf_kstate *); 2372 extern struct pf_kstate *pf_alloc_state(int); 2373 extern void pf_free_state(struct pf_kstate *); 2374 extern void pf_killstates(struct pf_kstate_kill *, 2375 unsigned int *); 2376 extern unsigned int pf_clear_states(const struct pf_kstate_kill *); 2377 2378 static __inline void 2379 pf_ref_state(struct pf_kstate *s) 2380 { 2381 2382 refcount_acquire(&s->refs); 2383 } 2384 2385 static __inline int 2386 pf_release_state(struct pf_kstate *s) 2387 { 2388 2389 if (refcount_release(&s->refs)) { 2390 pf_free_state(s); 2391 return (1); 2392 } else 2393 return (0); 2394 } 2395 2396 static __inline int 2397 pf_release_staten(struct pf_kstate *s, u_int n) 2398 { 2399 2400 if (refcount_releasen(&s->refs, n)) { 2401 pf_free_state(s); 2402 return (1); 2403 } else 2404 return (0); 2405 } 2406 2407 static __inline uint64_t 2408 pf_get_uptime(void) 2409 { 2410 struct timeval t; 2411 microuptime(&t); 2412 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2413 } 2414 2415 static __inline uint64_t 2416 pf_get_time(void) 2417 { 2418 struct timeval t; 2419 microtime(&t); 2420 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2421 } 2422 2423 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 2424 extern struct pf_kstate *pf_find_state_all( 2425 const struct pf_state_key_cmp *, 2426 u_int, int *); 2427 extern bool pf_find_state_all_exists( 2428 const struct pf_state_key_cmp *, 2429 u_int); 2430 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp 2431 *endpoint); 2432 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af, 2433 struct pf_addr *src_addr, uint16_t src_port, 2434 struct pf_addr *nat_addr, uint16_t nat_port); 2435 extern int pf_udp_mapping_insert(struct pf_udp_mapping 2436 *mapping); 2437 extern void pf_udp_mapping_release(struct pf_udp_mapping 2438 *mapping); 2439 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t); 2440 extern bool pf_src_node_exists(struct pf_ksrc_node **, 2441 struct pf_srchash *); 2442 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 2443 struct pf_krule *, sa_family_t, 2444 struct pf_srchash **, pf_sn_types_t, bool); 2445 extern void pf_unlink_src_node(struct pf_ksrc_node *); 2446 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 2447 extern void pf_free_src_node(struct pf_ksrc_node *); 2448 extern void pf_print_state(struct pf_kstate *); 2449 extern void pf_print_flags(uint16_t); 2450 extern int pf_addr_wrap_neq(struct pf_addr_wrap *, 2451 struct pf_addr_wrap *); 2452 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2453 u_int8_t); 2454 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 2455 u_int16_t, u_int16_t, u_int8_t); 2456 2457 VNET_DECLARE(struct pf_krule, pf_default_rule); 2458 #define V_pf_default_rule VNET(pf_default_rule) 2459 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *, 2460 sa_family_t); 2461 void pf_free_rule(struct pf_krule *); 2462 2463 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 2464 int pf_scan_sctp(struct pf_pdesc *); 2465 #if defined(INET) || defined(INET6) 2466 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *, 2467 struct pf_rule_actions *); 2468 #endif 2469 #ifdef INET 2470 int pf_normalize_ip(u_short *, struct pf_pdesc *); 2471 #endif /* INET */ 2472 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 #ifdef INET6 2477 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *); 2478 int pf_max_frag_size(struct mbuf *); 2479 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, 2480 struct ifnet *, bool); 2481 #endif /* INET6 */ 2482 2483 int pf_multihome_scan_init(int, int, struct pf_pdesc *); 2484 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *); 2485 2486 u_int32_t pf_new_isn(struct pf_kstate *); 2487 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, 2488 sa_family_t); 2489 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2490 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2491 u_int8_t); 2492 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2493 int pf_patch_16(struct pf_pdesc *, void *, u_int16_t, bool); 2494 int pf_patch_32(struct pf_pdesc *, void *, u_int32_t, bool); 2495 void pf_send_deferred_syn(struct pf_kstate *); 2496 int pf_match_addr(u_int8_t, const struct pf_addr *, 2497 const struct pf_addr *, const struct pf_addr *, sa_family_t); 2498 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *, 2499 const struct pf_addr *, sa_family_t); 2500 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2501 2502 void pf_normalize_init(void); 2503 void pf_normalize_cleanup(void); 2504 uint64_t pf_normalize_get_frag_count(void); 2505 int pf_normalize_tcp(struct pf_pdesc *); 2506 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2507 int pf_normalize_tcp_init(struct pf_pdesc *, 2508 struct tcphdr *, struct pf_state_peer *); 2509 int pf_normalize_tcp_stateful(struct pf_pdesc *, 2510 u_short *, struct tcphdr *, struct pf_kstate *, 2511 struct pf_state_peer *, struct pf_state_peer *, int *); 2512 int pf_normalize_sctp_init(struct pf_pdesc *, 2513 struct pf_state_peer *, struct pf_state_peer *); 2514 int pf_normalize_sctp(struct pf_pdesc *); 2515 u_int32_t 2516 pf_state_expires(const struct pf_kstate *); 2517 void pf_purge_expired_fragments(void); 2518 void pf_purge_fragments(uint32_t); 2519 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2520 int); 2521 int pf_socket_lookup(struct pf_pdesc *); 2522 struct pf_state_key *pf_alloc_state_key(int); 2523 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t, 2524 struct pf_addr *, u_int16_t, u_int16_t, int); 2525 bool pf_init_threshold(struct pf_kthreshold *, uint32_t, uint32_t); 2526 uint16_t pf_tagname2tag(const char *); 2527 #ifdef ALTQ 2528 uint16_t pf_qname2qid(const char *, bool); 2529 #endif /* ALTQ */ 2530 2531 void pfr_initialize(void); 2532 void pfr_cleanup(void); 2533 struct pfr_kentry * 2534 pfr_kentry_byaddr(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2535 int); 2536 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2537 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2538 u_int64_t, int, int, int); 2539 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t, 2540 pf_addr_filter_func_t, bool); 2541 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2542 struct pfr_ktable * 2543 pfr_attach_table(struct pf_kruleset *, char *); 2544 struct pfr_ktable * 2545 pfr_eth_attach_table(struct pf_keth_ruleset *, char *); 2546 void pfr_detach_table(struct pfr_ktable *); 2547 int pfr_clr_tables(struct pfr_table *, int *, int); 2548 int pfr_add_tables(struct pfr_table *, int, int *, int); 2549 int pfr_del_tables(struct pfr_table *, int, int *, int); 2550 int pfr_table_count(struct pfr_table *, int); 2551 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2552 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2553 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2554 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2555 int pfr_clr_addrs(struct pfr_table *, int *, int); 2556 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, time_t); 2557 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2558 int); 2559 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2560 int); 2561 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2562 int *, int *, int *, int, u_int32_t); 2563 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2564 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2565 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2566 int); 2567 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2568 int); 2569 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2570 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2571 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2572 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2573 int *, u_int32_t, int); 2574 struct pfr_ktable 2575 *pfr_ktable_select_active(struct pfr_ktable *); 2576 2577 MALLOC_DECLARE(PFI_MTYPE); 2578 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2579 #define V_pfi_all VNET(pfi_all) 2580 2581 void pfi_initialize(void); 2582 void pfi_initialize_vnet(void); 2583 void pfi_cleanup(void); 2584 void pfi_cleanup_vnet(void); 2585 void pfi_kkif_ref(struct pfi_kkif *); 2586 void pfi_kkif_unref(struct pfi_kkif *); 2587 struct pfi_kkif *pfi_kkif_find(const char *); 2588 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2589 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2590 void pfi_kkif_purge(void); 2591 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2592 sa_family_t); 2593 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2594 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2595 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2596 void pfi_update_status(const char *, struct pf_status *); 2597 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2598 int pfi_set_flags(const char *, int); 2599 int pfi_clear_flags(const char *, int); 2600 2601 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2602 int pf_tag_packet(struct pf_pdesc *, int); 2603 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2604 sa_family_t); 2605 2606 uint8_t* pf_find_tcpopt(u_int8_t *, u_int8_t *, size_t, 2607 u_int8_t, u_int8_t); 2608 u_int16_t pf_get_mss(struct pf_pdesc *); 2609 u_int8_t pf_get_wscale(struct pf_pdesc *); 2610 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2611 const struct pf_addr *, const struct pf_addr *, 2612 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2613 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2614 u_int16_t, u_int16_t, u_int, int, u_short *); 2615 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2616 const struct pf_addr *, const struct pf_addr *, 2617 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2618 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2619 u_int16_t, u_int16_t, int, u_short *); 2620 2621 void pf_syncookies_init(void); 2622 void pf_syncookies_cleanup(void); 2623 int pf_get_syncookies(struct pfioc_nv *); 2624 int pf_set_syncookies(struct pfioc_nv *); 2625 int pf_synflood_check(struct pf_pdesc *); 2626 void pf_syncookie_send(struct pf_pdesc *, u_short *); 2627 bool pf_syncookie_check(struct pf_pdesc *); 2628 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2629 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *, 2630 u_short *); 2631 2632 VNET_DECLARE(struct pf_kstatus, pf_status); 2633 #define V_pf_status VNET(pf_status) 2634 2635 struct pf_limit { 2636 uma_zone_t zone; 2637 u_int limit; 2638 }; 2639 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2640 #define V_pf_limits VNET(pf_limits) 2641 2642 #endif /* _KERNEL */ 2643 2644 #ifdef _KERNEL 2645 struct pf_nl_pooladdr { 2646 u_int32_t action; 2647 u_int32_t ticket; 2648 u_int32_t nr; 2649 u_int32_t r_num; 2650 u_int8_t r_action; 2651 u_int8_t r_last; 2652 u_int8_t af; 2653 char anchor[MAXPATHLEN]; 2654 struct pf_pooladdr addr; 2655 /* Above this is identical to pfioc_pooladdr */ 2656 int which; 2657 }; 2658 2659 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2660 #define V_pf_anchors VNET(pf_anchors) 2661 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2662 #define V_pf_main_anchor VNET(pf_main_anchor) 2663 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors); 2664 #define V_pf_keth_anchors VNET(pf_keth_anchors) 2665 #define pf_main_ruleset V_pf_main_anchor.ruleset 2666 2667 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor); 2668 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor) 2669 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth); 2670 #define V_pf_keth VNET(pf_keth) 2671 2672 void pf_init_kruleset(struct pf_kruleset *); 2673 void pf_init_keth(struct pf_keth_ruleset *); 2674 int pf_kanchor_setup(struct pf_krule *, 2675 const struct pf_kruleset *, const char *); 2676 int pf_kanchor_copyout(const struct pf_kruleset *, 2677 const struct pf_krule *, char *, size_t); 2678 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2679 const struct pf_krule *, nvlist_t *); 2680 void pf_remove_kanchor(struct pf_krule *); 2681 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2682 struct pf_kruleset *pf_find_kruleset(const char *); 2683 struct pf_kruleset *pf_get_leaf_kruleset(char *, char **); 2684 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2685 void pf_rs_initialize(void); 2686 void pf_rule_tree_free(struct pf_krule_global *); 2687 2688 2689 struct pf_krule *pf_krule_alloc(void); 2690 2691 void pf_remove_if_empty_keth_ruleset( 2692 struct pf_keth_ruleset *); 2693 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *); 2694 struct pf_keth_anchor *pf_find_keth_anchor(const char *); 2695 int pf_keth_anchor_setup(struct pf_keth_rule *, 2696 const struct pf_keth_ruleset *, const char *); 2697 int pf_keth_anchor_nvcopyout( 2698 const struct pf_keth_ruleset *, 2699 const struct pf_keth_rule *, nvlist_t *); 2700 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *); 2701 void pf_keth_anchor_remove(struct pf_keth_rule *); 2702 2703 int pf_ioctl_getrules(struct pfioc_rule *); 2704 int pf_ioctl_addrule(struct pf_krule *, uint32_t, 2705 uint32_t, const char *, const char *, uid_t uid, 2706 pid_t); 2707 void pf_ioctl_clear_status(void); 2708 int pf_ioctl_get_timeout(int, int *); 2709 int pf_ioctl_set_timeout(int, int, int *); 2710 int pf_ioctl_get_limit(int, unsigned int *); 2711 int pf_ioctl_set_limit(int, unsigned int, unsigned int *); 2712 int pf_ioctl_begin_addrs(uint32_t *); 2713 int pf_ioctl_add_addr(struct pf_nl_pooladdr *); 2714 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *); 2715 int pf_ioctl_get_addr(struct pf_nl_pooladdr *); 2716 int pf_ioctl_get_rulesets(struct pfioc_ruleset *); 2717 int pf_ioctl_get_ruleset(struct pfioc_ruleset *); 2718 int pf_ioctl_natlook(struct pfioc_natlook *); 2719 2720 void pf_krule_free(struct pf_krule *); 2721 void pf_krule_clear_counters(struct pf_krule *); 2722 void pf_addr_copyout(struct pf_addr_wrap *); 2723 #endif 2724 2725 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2726 int pf_osfp_add(struct pf_osfp_ioctl *); 2727 #ifdef _KERNEL 2728 struct pf_osfp_enlist * 2729 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *); 2730 #endif /* _KERNEL */ 2731 void pf_osfp_flush(void); 2732 int pf_osfp_get(struct pf_osfp_ioctl *); 2733 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2734 2735 #ifdef _KERNEL 2736 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t); 2737 2738 enum pf_test_status pf_step_into_anchor(struct pf_test_ctx *, struct pf_krule *, 2739 struct pf_krule_slist *match_rules); 2740 enum pf_test_status pf_match_rule(struct pf_test_ctx *, struct pf_kruleset *, 2741 struct pf_krule_slist *); 2742 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *, 2743 int *, struct pf_keth_ruleset **, 2744 struct pf_keth_rule **, struct pf_keth_rule **, 2745 int *); 2746 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *, 2747 int *, struct pf_keth_ruleset **, 2748 struct pf_keth_rule **, struct pf_keth_rule **, 2749 int *); 2750 2751 u_short pf_map_addr(sa_family_t, struct pf_krule *, 2752 struct pf_addr *, struct pf_addr *, 2753 struct pfi_kkif **nkif, sa_family_t *, 2754 struct pf_addr *, struct pf_kpool *); 2755 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *, 2756 struct pf_addr *, struct pf_addr *, 2757 sa_family_t *, struct pfi_kkif **, 2758 struct pf_addr *, struct pf_kpool *, 2759 pf_sn_types_t); 2760 int pf_get_transaddr_af(struct pf_krule *, 2761 struct pf_pdesc *); 2762 u_short pf_get_translation(struct pf_test_ctx *); 2763 u_short pf_get_transaddr(struct pf_test_ctx *, 2764 struct pf_krule *, 2765 u_int8_t, struct pf_kpool *); 2766 int pf_translate_compat(struct pf_test_ctx *); 2767 2768 int pf_state_key_setup(struct pf_pdesc *, 2769 u_int16_t, u_int16_t, 2770 struct pf_state_key **sk, struct pf_state_key **nk); 2771 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *); 2772 void pf_rule_to_actions(struct pf_krule *, 2773 struct pf_rule_actions *); 2774 int pf_normalize_mss(struct pf_pdesc *pd); 2775 #if defined(INET) || defined(INET6) 2776 void pf_scrub(struct pf_pdesc *); 2777 #endif 2778 2779 struct pfi_kkif *pf_kkif_create(int); 2780 void pf_kkif_free(struct pfi_kkif *); 2781 void pf_kkif_zero(struct pfi_kkif *); 2782 2783 2784 /* NAT64 functions. */ 2785 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 2786 int inet_nat64_inet(const void *, void *, const void *, u_int8_t); 2787 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t); 2788 2789 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 2790 int inet_nat46_inet(const void *, void *, const void *, u_int8_t); 2791 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t); 2792 2793 #endif /* _KERNEL */ 2794 2795 #endif /* _NET_PFVAR_H_ */ 2796