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 uint16_t max_pkt_size; 694 }; 695 696 union pf_keth_rule_ptr { 697 struct pf_keth_rule *ptr; 698 uint32_t nr; 699 }; 700 701 struct pf_keth_rule_addr { 702 uint8_t addr[ETHER_ADDR_LEN]; 703 uint8_t mask[ETHER_ADDR_LEN]; 704 bool neg; 705 uint8_t isset; 706 }; 707 708 struct pf_keth_anchor; 709 710 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule); 711 712 struct pf_keth_ruleset { 713 struct pf_keth_ruleq rules[2]; 714 struct pf_keth_rules { 715 struct pf_keth_ruleq *rules; 716 int open; 717 uint32_t ticket; 718 } active, inactive; 719 struct vnet *vnet; 720 struct pf_keth_anchor *anchor; 721 }; 722 723 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor); 724 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor); 725 struct pf_keth_anchor { 726 RB_ENTRY(pf_keth_anchor) entry_node; 727 RB_ENTRY(pf_keth_anchor) entry_global; 728 struct pf_keth_anchor *parent; 729 struct pf_keth_anchor_node children; 730 char name[PF_ANCHOR_NAME_SIZE]; 731 char path[MAXPATHLEN]; 732 struct pf_keth_ruleset ruleset; 733 int refcnt; /* anchor rules */ 734 uint8_t anchor_relative; 735 uint8_t anchor_wildcard; 736 }; 737 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node, 738 pf_keth_anchor_compare); 739 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global, 740 pf_keth_anchor_compare); 741 742 struct pf_keth_rule { 743 #define PFE_SKIP_IFP 0 744 #define PFE_SKIP_DIR 1 745 #define PFE_SKIP_PROTO 2 746 #define PFE_SKIP_SRC_ADDR 3 747 #define PFE_SKIP_DST_ADDR 4 748 #define PFE_SKIP_SRC_IP_ADDR 5 749 #define PFE_SKIP_DST_IP_ADDR 6 750 #define PFE_SKIP_COUNT 7 751 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT]; 752 753 TAILQ_ENTRY(pf_keth_rule) entries; 754 755 struct pf_keth_anchor *anchor; 756 u_int8_t anchor_relative; 757 u_int8_t anchor_wildcard; 758 759 uint32_t nr; 760 761 bool quick; 762 763 /* Filter */ 764 char ifname[IFNAMSIZ]; 765 struct pfi_kkif *kif; 766 bool ifnot; 767 uint8_t direction; 768 uint16_t proto; 769 struct pf_keth_rule_addr src, dst; 770 struct pf_rule_addr ipsrc, ipdst; 771 char match_tagname[PF_TAG_NAME_SIZE]; 772 uint16_t match_tag; 773 bool match_tag_not; 774 775 776 /* Stats */ 777 counter_u64_t evaluations; 778 counter_u64_t packets[2]; 779 counter_u64_t bytes[2]; 780 time_t *timestamp; 781 782 /* Action */ 783 char qname[PF_QNAME_SIZE]; 784 int qid; 785 char tagname[PF_TAG_NAME_SIZE]; 786 uint16_t tag; 787 char bridge_to_name[IFNAMSIZ]; 788 struct pfi_kkif *bridge_to; 789 uint8_t action; 790 uint16_t dnpipe; 791 uint32_t dnflags; 792 793 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 794 uint32_t ridentifier; 795 }; 796 797 struct pf_kthreshold { 798 uint32_t limit; 799 uint32_t seconds; 800 struct counter_rate *cr; 801 }; 802 803 RB_HEAD(pf_krule_global, pf_krule); 804 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare); 805 806 struct pf_krule { 807 struct pf_rule_addr src; 808 struct pf_rule_addr dst; 809 struct pf_krule *skip[PF_SKIP_COUNT]; 810 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 811 uint32_t ridentifier; 812 char ifname[IFNAMSIZ]; 813 char rcv_ifname[IFNAMSIZ]; 814 char qname[PF_QNAME_SIZE]; 815 char pqname[PF_QNAME_SIZE]; 816 char tagname[PF_TAG_NAME_SIZE]; 817 char match_tagname[PF_TAG_NAME_SIZE]; 818 819 char overload_tblname[PF_TABLE_NAME_SIZE]; 820 821 TAILQ_ENTRY(pf_krule) entries; 822 struct pf_kpool nat; 823 struct pf_kpool rdr; 824 struct pf_kpool route; 825 struct pf_kthreshold pktrate; 826 827 struct pf_counter_u64 evaluations; 828 struct pf_counter_u64 packets[2]; 829 struct pf_counter_u64 bytes[2]; 830 time_t *timestamp; 831 832 struct pfi_kkif *kif; 833 struct pfi_kkif *rcv_kif; 834 struct pf_kanchor *anchor; 835 struct pfr_ktable *overload_tbl; 836 837 pf_osfp_t os_fingerprint; 838 839 int32_t rtableid; 840 u_int32_t timeout[PFTM_MAX]; 841 u_int32_t max_states; 842 u_int32_t max_src_nodes; 843 u_int32_t max_src_states; 844 u_int32_t max_src_conn; 845 struct { 846 u_int32_t limit; 847 u_int32_t seconds; 848 } max_src_conn_rate; 849 uint16_t max_pkt_size; 850 u_int16_t qid; 851 u_int16_t pqid; 852 u_int16_t dnpipe; 853 u_int16_t dnrpipe; 854 u_int32_t free_flags; 855 u_int32_t nr; 856 u_int32_t prob; 857 uid_t cuid; 858 pid_t cpid; 859 860 counter_u64_t states_cur; 861 counter_u64_t states_tot; 862 counter_u64_t src_nodes[PF_SN_MAX]; 863 864 u_int16_t return_icmp; 865 u_int16_t return_icmp6; 866 u_int16_t max_mss; 867 u_int16_t tag; 868 u_int16_t match_tag; 869 u_int16_t scrub_flags; 870 871 struct pf_rule_uid uid; 872 struct pf_rule_gid gid; 873 874 u_int32_t rule_flag; 875 uint32_t rule_ref; 876 u_int8_t action; 877 u_int8_t direction; 878 u_int8_t log; 879 u_int8_t logif; 880 u_int8_t quick; 881 u_int8_t ifnot; 882 u_int8_t match_tag_not; 883 u_int8_t natpass; 884 885 u_int8_t keep_state; 886 sa_family_t af; 887 u_int8_t proto; 888 u_int8_t type; 889 u_int8_t code; 890 u_int8_t flags; 891 u_int8_t flagset; 892 u_int8_t min_ttl; 893 u_int8_t allow_opts; 894 u_int8_t rt; 895 u_int8_t return_ttl; 896 u_int8_t tos; 897 u_int8_t set_tos; 898 u_int8_t anchor_relative; 899 u_int8_t anchor_wildcard; 900 901 u_int8_t flush; 902 u_int8_t prio; 903 u_int8_t set_prio[2]; 904 sa_family_t naf; 905 u_int8_t rcvifnot; 906 907 struct { 908 struct pf_addr addr; 909 u_int16_t port; 910 } divert; 911 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH]; 912 RB_ENTRY(pf_krule) entry_global; 913 914 #ifdef PF_WANT_32_TO_64_COUNTER 915 LIST_ENTRY(pf_krule) allrulelist; 916 bool allrulelinked; 917 #endif 918 }; 919 920 struct pf_krule_item { 921 SLIST_ENTRY(pf_krule_item) entry; 922 struct pf_krule *r; 923 }; 924 925 SLIST_HEAD(pf_krule_slist, pf_krule_item); 926 927 struct pf_ksrc_node { 928 LIST_ENTRY(pf_ksrc_node) entry; 929 struct pf_addr addr; 930 struct pf_addr raddr; 931 struct pf_krule_slist match_rules; 932 struct pf_krule *rule; 933 struct pfi_kkif *rkif; 934 counter_u64_t bytes[2]; 935 counter_u64_t packets[2]; 936 u_int32_t states; 937 u_int32_t conn; 938 struct pf_kthreshold conn_rate; 939 u_int32_t creation; 940 u_int32_t expire; 941 sa_family_t af; 942 sa_family_t naf; 943 u_int8_t ruletype; 944 pf_sn_types_t type; 945 struct mtx *lock; 946 }; 947 #endif 948 949 struct pf_state_scrub { 950 struct timeval pfss_last; /* time received last packet */ 951 u_int32_t pfss_tsecr; /* last echoed timestamp */ 952 u_int32_t pfss_tsval; /* largest timestamp */ 953 u_int32_t pfss_tsval0; /* original timestamp */ 954 u_int16_t pfss_flags; 955 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 956 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 957 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 958 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 959 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 960 u_int8_t pfss_ttl; /* stashed TTL */ 961 u_int8_t pad; 962 union { 963 u_int32_t pfss_ts_mod; /* timestamp modulation */ 964 u_int32_t pfss_v_tag; /* SCTP verification tag */ 965 }; 966 }; 967 968 struct pf_state_host { 969 struct pf_addr addr; 970 u_int16_t port; 971 u_int16_t pad; 972 }; 973 974 struct pf_state_peer { 975 struct pf_state_scrub *scrub; /* state is scrubbed */ 976 u_int32_t seqlo; /* Max sequence number sent */ 977 u_int32_t seqhi; /* Max the other end ACKd + win */ 978 u_int32_t seqdiff; /* Sequence number modulator */ 979 u_int16_t max_win; /* largest window (pre scaling) */ 980 u_int16_t mss; /* Maximum segment size option */ 981 u_int8_t state; /* active state level */ 982 u_int8_t wscale; /* window scaling factor */ 983 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 984 u_int8_t pad[1]; 985 }; 986 987 /* Keep synced with struct pf_udp_endpoint. */ 988 struct pf_udp_endpoint_cmp { 989 struct pf_addr addr; 990 uint16_t port; 991 sa_family_t af; 992 uint8_t pad[1]; 993 }; 994 995 struct pf_udp_endpoint { 996 struct pf_addr addr; 997 uint16_t port; 998 sa_family_t af; 999 uint8_t pad[1]; 1000 1001 struct pf_udp_mapping *mapping; 1002 LIST_ENTRY(pf_udp_endpoint) entry; 1003 }; 1004 1005 struct pf_udp_mapping { 1006 struct pf_udp_endpoint endpoints[2]; 1007 u_int refs; 1008 }; 1009 1010 /* Keep synced with struct pf_state_key. */ 1011 struct pf_state_key_cmp { 1012 struct pf_addr addr[2]; 1013 u_int16_t port[2]; 1014 sa_family_t af; 1015 u_int8_t proto; 1016 u_int8_t pad[2]; 1017 }; 1018 1019 struct pf_state_key { 1020 struct pf_addr addr[2]; 1021 u_int16_t port[2]; 1022 sa_family_t af; 1023 u_int8_t proto; 1024 u_int8_t pad[2]; 1025 1026 LIST_ENTRY(pf_state_key) entry; 1027 TAILQ_HEAD(, pf_kstate) states[2]; 1028 }; 1029 1030 #define PF_REVERSED_KEY(state, family) \ 1031 (((state)->key[PF_SK_WIRE]->af != (state)->key[PF_SK_STACK]->af) && \ 1032 ((state)->key[PF_SK_WIRE]->af != (family)) && \ 1033 ((state)->direction == PF_IN)) 1034 1035 /* Keep synced with struct pf_kstate. */ 1036 struct pf_state_cmp { 1037 u_int64_t id; 1038 u_int32_t creatorid; 1039 u_int8_t direction; 1040 u_int8_t pad[3]; 1041 }; 1042 1043 struct pf_state_scrub_export { 1044 uint16_t pfss_flags; 1045 uint8_t pfss_ttl; /* stashed TTL */ 1046 #define PF_SCRUB_FLAG_VALID 0x01 1047 uint8_t scrub_flag; 1048 uint32_t pfss_ts_mod; /* timestamp modulation */ 1049 }; 1050 1051 struct pf_state_key_export { 1052 struct pf_addr addr[2]; 1053 uint16_t port[2]; 1054 }; 1055 1056 struct pf_state_peer_export { 1057 struct pf_state_scrub_export scrub; /* state is scrubbed */ 1058 uint32_t seqlo; /* Max sequence number sent */ 1059 uint32_t seqhi; /* Max the other end ACKd + win */ 1060 uint32_t seqdiff; /* Sequence number modulator */ 1061 uint16_t max_win; /* largest window (pre scaling) */ 1062 uint16_t mss; /* Maximum segment size option */ 1063 uint8_t state; /* active state level */ 1064 uint8_t wscale; /* window scaling factor */ 1065 uint8_t dummy[6]; 1066 }; 1067 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect"); 1068 1069 struct pf_state_export { 1070 uint64_t version; 1071 #define PF_STATE_VERSION 20230404 1072 uint64_t id; 1073 char ifname[IFNAMSIZ]; 1074 char orig_ifname[IFNAMSIZ]; 1075 struct pf_state_key_export key[2]; 1076 struct pf_state_peer_export src; 1077 struct pf_state_peer_export dst; 1078 struct pf_addr rt_addr; 1079 uint32_t rule; 1080 uint32_t anchor; 1081 uint32_t nat_rule; 1082 uint32_t creation; 1083 uint32_t expire; 1084 uint32_t spare0; 1085 uint64_t packets[2]; 1086 uint64_t bytes[2]; 1087 uint32_t creatorid; 1088 uint32_t spare1; 1089 sa_family_t af; 1090 uint8_t proto; 1091 uint8_t direction; 1092 uint8_t log; 1093 uint8_t state_flags_compat; 1094 uint8_t timeout; 1095 uint8_t sync_flags; 1096 uint8_t updates; 1097 uint16_t state_flags; 1098 uint16_t qid; 1099 uint16_t pqid; 1100 uint16_t dnpipe; 1101 uint16_t dnrpipe; 1102 int32_t rtableid; 1103 uint8_t min_ttl; 1104 uint8_t set_tos; 1105 uint16_t max_mss; 1106 uint8_t set_prio[2]; 1107 uint8_t rt; 1108 char rt_ifname[IFNAMSIZ]; 1109 1110 uint8_t spare[72]; 1111 }; 1112 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect"); 1113 1114 #ifdef _KERNEL 1115 struct pf_kstate { 1116 /* 1117 * Area shared with pf_state_cmp 1118 */ 1119 u_int64_t id; 1120 u_int32_t creatorid; 1121 u_int8_t direction; 1122 u_int8_t pad[3]; 1123 /* 1124 * end of the area 1125 */ 1126 1127 u_int16_t state_flags; 1128 u_int8_t timeout; 1129 u_int8_t sync_state; /* PFSYNC_S_x */ 1130 u_int8_t sync_updates; 1131 u_int refs; 1132 struct mtx *lock; 1133 TAILQ_ENTRY(pf_kstate) sync_list; 1134 TAILQ_ENTRY(pf_kstate) key_list[2]; 1135 LIST_ENTRY(pf_kstate) entry; 1136 struct pf_state_peer src; 1137 struct pf_state_peer dst; 1138 struct pf_krule_slist match_rules; 1139 struct pf_krule *rule; 1140 struct pf_krule *anchor; 1141 struct pf_krule *nat_rule; 1142 struct pf_state_key *key[2]; /* addresses stack and wire */ 1143 struct pf_udp_mapping *udp_mapping; 1144 struct pfi_kkif *kif; 1145 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 1146 struct pf_ksrc_node *sns[PF_SN_MAX];/* source nodes */ 1147 u_int64_t packets[2]; 1148 u_int64_t bytes[2]; 1149 u_int64_t creation; 1150 u_int64_t expire; 1151 u_int32_t pfsync_time; 1152 struct pf_rule_actions act; 1153 u_int16_t tag; 1154 u_int16_t if_index_in; 1155 u_int16_t if_index_out; 1156 }; 1157 1158 /* 1159 * 6 cache lines per struct, 10 structs per page. 1160 * Try to not grow the struct beyond that. 1161 */ 1162 _Static_assert(sizeof(struct pf_kstate) <= 384, "pf_kstate size crosses 384 bytes"); 1163 1164 enum pf_test_status { 1165 PF_TEST_FAIL = -1, 1166 PF_TEST_OK, 1167 PF_TEST_QUICK 1168 }; 1169 1170 struct pf_test_ctx { 1171 enum pf_test_status test_status; 1172 struct pf_pdesc *pd; 1173 struct pf_rule_actions act; 1174 uint8_t icmpcode; 1175 uint8_t icmptype; 1176 int icmp_dir; 1177 int state_icmp; 1178 int tag; 1179 int rewrite; 1180 u_short reason; 1181 struct pf_src_node *sns[PF_SN_MAX]; 1182 struct pf_krule_slist rules; 1183 struct pf_krule *nr; 1184 struct pf_krule *tr; 1185 struct pf_krule **rm; 1186 struct pf_krule *a; 1187 struct pf_krule **am; 1188 struct pf_kruleset **rsm; 1189 struct pf_kruleset *arsm; 1190 struct pf_kruleset *aruleset; 1191 struct pf_state_key *sk; 1192 struct pf_state_key *nk; 1193 struct tcphdr *th; 1194 struct pf_udp_mapping *udp_mapping; 1195 struct pf_kpool *nat_pool; 1196 uint16_t virtual_type; 1197 uint16_t virtual_id; 1198 int depth; 1199 }; 1200 1201 #define PF_ANCHOR_STACK_MAX 32 1202 #endif 1203 1204 /* 1205 * Unified state structures for pulling states out of the kernel 1206 * used by pfsync(4) and the pf(4) ioctl. 1207 */ 1208 struct pfsync_state_scrub { 1209 u_int16_t pfss_flags; 1210 u_int8_t pfss_ttl; /* stashed TTL */ 1211 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1212 u_int8_t scrub_flag; 1213 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1214 } __packed; 1215 1216 struct pfsync_state_peer { 1217 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1218 u_int32_t seqlo; /* Max sequence number sent */ 1219 u_int32_t seqhi; /* Max the other end ACKd + win */ 1220 u_int32_t seqdiff; /* Sequence number modulator */ 1221 u_int16_t max_win; /* largest window (pre scaling) */ 1222 u_int16_t mss; /* Maximum segment size option */ 1223 u_int8_t state; /* active state level */ 1224 u_int8_t wscale; /* window scaling factor */ 1225 u_int8_t pad[6]; 1226 } __packed; 1227 1228 struct pfsync_state_key { 1229 struct pf_addr addr[2]; 1230 u_int16_t port[2]; 1231 }; 1232 1233 struct pfsync_state_1301 { 1234 u_int64_t id; 1235 char ifname[IFNAMSIZ]; 1236 struct pfsync_state_key key[2]; 1237 struct pfsync_state_peer src; 1238 struct pfsync_state_peer dst; 1239 struct pf_addr rt_addr; 1240 u_int32_t rule; 1241 u_int32_t anchor; 1242 u_int32_t nat_rule; 1243 u_int32_t creation; 1244 u_int32_t expire; 1245 u_int32_t packets[2][2]; 1246 u_int32_t bytes[2][2]; 1247 u_int32_t creatorid; 1248 sa_family_t af; 1249 u_int8_t proto; 1250 u_int8_t direction; 1251 u_int8_t __spare[2]; 1252 u_int8_t log; 1253 u_int8_t state_flags; 1254 u_int8_t timeout; 1255 u_int8_t sync_flags; 1256 u_int8_t updates; 1257 } __packed; 1258 1259 struct pfsync_state_1400 { 1260 /* The beginning of the struct is compatible with previous versions */ 1261 u_int64_t id; 1262 char ifname[IFNAMSIZ]; 1263 struct pfsync_state_key key[2]; 1264 struct pfsync_state_peer src; 1265 struct pfsync_state_peer dst; 1266 struct pf_addr rt_addr; 1267 u_int32_t rule; 1268 u_int32_t anchor; 1269 u_int32_t nat_rule; 1270 u_int32_t creation; 1271 u_int32_t expire; 1272 u_int32_t packets[2][2]; 1273 u_int32_t bytes[2][2]; 1274 u_int32_t creatorid; 1275 sa_family_t af; 1276 u_int8_t proto; 1277 u_int8_t direction; 1278 u_int16_t state_flags; 1279 u_int8_t log; 1280 u_int8_t __spare; 1281 u_int8_t timeout; 1282 u_int8_t sync_flags; 1283 u_int8_t updates; 1284 /* The rest is not */ 1285 u_int16_t qid; 1286 u_int16_t pqid; 1287 u_int16_t dnpipe; 1288 u_int16_t dnrpipe; 1289 int32_t rtableid; 1290 u_int8_t min_ttl; 1291 u_int8_t set_tos; 1292 u_int16_t max_mss; 1293 u_int8_t set_prio[2]; 1294 u_int8_t rt; 1295 char rt_ifname[IFNAMSIZ]; 1296 1297 } __packed; 1298 1299 union pfsync_state_union { 1300 struct pfsync_state_1301 pfs_1301; 1301 struct pfsync_state_1400 pfs_1400; 1302 } __packed; 1303 1304 #ifdef _KERNEL 1305 /* pfsync */ 1306 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int); 1307 typedef void pfsync_insert_state_t(struct pf_kstate *); 1308 typedef void pfsync_update_state_t(struct pf_kstate *); 1309 typedef void pfsync_delete_state_t(struct pf_kstate *); 1310 typedef void pfsync_clear_states_t(u_int32_t, const char *); 1311 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 1312 typedef void pfsync_detach_ifnet_t(struct ifnet *); 1313 typedef void pflow_export_state_t(const struct pf_kstate *); 1314 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *); 1315 1316 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 1317 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 1318 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 1319 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 1320 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 1321 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 1322 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 1323 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 1324 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 1325 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 1326 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 1327 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 1328 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr); 1329 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr) 1330 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 1331 1332 void pfsync_state_export(union pfsync_state_union *, 1333 struct pf_kstate *, int); 1334 void pf_state_export(struct pf_state_export *, 1335 struct pf_kstate *); 1336 1337 /* pflog */ 1338 struct pf_kruleset; 1339 struct pf_pdesc; 1340 typedef int pflog_packet_t(uint8_t, u_int8_t, 1341 struct pf_krule *, struct pf_krule *, struct pf_kruleset *, 1342 struct pf_pdesc *, int, struct pf_krule *); 1343 extern pflog_packet_t *pflog_packet_ptr; 1344 1345 #endif /* _KERNEL */ 1346 1347 #define PFSYNC_FLAG_SRCNODE 0x04 1348 #define PFSYNC_FLAG_NATSRCNODE 0x08 1349 1350 /* for copies to/from network byte order */ 1351 /* ioctl interface also uses network byte order */ 1352 #define pf_state_peer_hton(s,d) do { \ 1353 (d)->seqlo = htonl((s)->seqlo); \ 1354 (d)->seqhi = htonl((s)->seqhi); \ 1355 (d)->seqdiff = htonl((s)->seqdiff); \ 1356 (d)->max_win = htons((s)->max_win); \ 1357 (d)->mss = htons((s)->mss); \ 1358 (d)->state = (s)->state; \ 1359 (d)->wscale = (s)->wscale; \ 1360 if ((s)->scrub) { \ 1361 (d)->scrub.pfss_flags = \ 1362 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 1363 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1364 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 1365 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1366 } \ 1367 } while (0) 1368 1369 #define pf_state_peer_ntoh(s,d) do { \ 1370 (d)->seqlo = ntohl((s)->seqlo); \ 1371 (d)->seqhi = ntohl((s)->seqhi); \ 1372 (d)->seqdiff = ntohl((s)->seqdiff); \ 1373 (d)->max_win = ntohs((s)->max_win); \ 1374 (d)->mss = ntohs((s)->mss); \ 1375 (d)->state = (s)->state; \ 1376 (d)->wscale = (s)->wscale; \ 1377 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1378 (d)->scrub != NULL) { \ 1379 (d)->scrub->pfss_flags = \ 1380 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1381 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1382 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1383 } \ 1384 } while (0) 1385 1386 #define pf_state_counter_hton(s,d) do { \ 1387 d[0] = htonl((s>>32)&0xffffffff); \ 1388 d[1] = htonl(s&0xffffffff); \ 1389 } while (0) 1390 1391 #define pf_state_counter_from_pfsync(s) \ 1392 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1393 1394 #define pf_state_counter_ntoh(s,d) do { \ 1395 d = ntohl(s[0]); \ 1396 d = d<<32; \ 1397 d += ntohl(s[1]); \ 1398 } while (0) 1399 1400 TAILQ_HEAD(pf_krulequeue, pf_krule); 1401 1402 struct pf_kanchor; 1403 1404 struct pf_kruleset { 1405 struct { 1406 struct pf_krulequeue queues[2]; 1407 struct { 1408 struct pf_krulequeue *ptr; 1409 struct pf_krule **ptr_array; 1410 u_int32_t rcount; 1411 u_int32_t ticket; 1412 int open; 1413 struct pf_krule_global *tree; 1414 } active, inactive; 1415 } rules[PF_RULESET_MAX]; 1416 struct pf_kanchor *anchor; 1417 u_int32_t tticket; 1418 int tables; 1419 int topen; 1420 }; 1421 1422 RB_HEAD(pf_kanchor_global, pf_kanchor); 1423 RB_HEAD(pf_kanchor_node, pf_kanchor); 1424 struct pf_kanchor { 1425 RB_ENTRY(pf_kanchor) entry_global; 1426 RB_ENTRY(pf_kanchor) entry_node; 1427 struct pf_kanchor *parent; 1428 struct pf_kanchor_node children; 1429 char name[PF_ANCHOR_NAME_SIZE]; 1430 char path[MAXPATHLEN]; 1431 struct pf_kruleset ruleset; 1432 int refcnt; /* anchor rules */ 1433 }; 1434 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1435 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1436 1437 #define PF_RESERVED_ANCHOR "_pf" 1438 1439 #define PFR_TFLAG_PERSIST 0x00000001 1440 #define PFR_TFLAG_CONST 0x00000002 1441 #define PFR_TFLAG_ACTIVE 0x00000004 1442 #define PFR_TFLAG_INACTIVE 0x00000008 1443 #define PFR_TFLAG_REFERENCED 0x00000010 1444 #define PFR_TFLAG_REFDANCHOR 0x00000020 1445 #define PFR_TFLAG_COUNTERS 0x00000040 1446 /* Adjust masks below when adding flags. */ 1447 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1448 PFR_TFLAG_CONST | \ 1449 PFR_TFLAG_COUNTERS) 1450 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1451 PFR_TFLAG_INACTIVE | \ 1452 PFR_TFLAG_REFERENCED | \ 1453 PFR_TFLAG_REFDANCHOR) 1454 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1455 PFR_TFLAG_CONST | \ 1456 PFR_TFLAG_ACTIVE | \ 1457 PFR_TFLAG_INACTIVE | \ 1458 PFR_TFLAG_REFERENCED | \ 1459 PFR_TFLAG_REFDANCHOR | \ 1460 PFR_TFLAG_COUNTERS) 1461 1462 struct pf_keth_anchor_stackframe; 1463 1464 struct pfr_table { 1465 char pfrt_anchor[MAXPATHLEN]; 1466 char pfrt_name[PF_TABLE_NAME_SIZE]; 1467 u_int32_t pfrt_flags; 1468 u_int8_t pfrt_fback; 1469 }; 1470 1471 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1472 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1473 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1474 1475 struct pfr_addr { 1476 union { 1477 struct in_addr _pfra_ip4addr; 1478 struct in6_addr _pfra_ip6addr; 1479 } pfra_u; 1480 u_int8_t pfra_af; 1481 u_int8_t pfra_net; 1482 u_int8_t pfra_not; 1483 u_int8_t pfra_fback; 1484 }; 1485 #define pfra_ip4addr pfra_u._pfra_ip4addr 1486 #define pfra_ip6addr pfra_u._pfra_ip6addr 1487 1488 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1489 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1490 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1491 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1492 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1493 1494 struct pfr_astats { 1495 struct pfr_addr pfras_a; 1496 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1497 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1498 time_t pfras_tzero; 1499 }; 1500 1501 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1502 1503 struct pfr_tstats { 1504 struct pfr_table pfrts_t; 1505 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1506 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1507 u_int64_t pfrts_match; 1508 u_int64_t pfrts_nomatch; 1509 time_t pfrts_tzero; 1510 int pfrts_cnt; 1511 int pfrts_refcnt[PFR_REFCNT_MAX]; 1512 }; 1513 1514 #ifdef _KERNEL 1515 1516 struct pfr_kstate_counter { 1517 counter_u64_t pkc_pcpu; 1518 u_int64_t pkc_zero; 1519 }; 1520 1521 static inline int 1522 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1523 { 1524 1525 pfrc->pkc_zero = 0; 1526 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1527 if (pfrc->pkc_pcpu == NULL) 1528 return (ENOMEM); 1529 return (0); 1530 } 1531 1532 static inline void 1533 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1534 { 1535 1536 counter_u64_free(pfrc->pkc_pcpu); 1537 } 1538 1539 static inline u_int64_t 1540 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1541 { 1542 u_int64_t c; 1543 1544 c = counter_u64_fetch(pfrc->pkc_pcpu); 1545 c -= pfrc->pkc_zero; 1546 return (c); 1547 } 1548 1549 static inline void 1550 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1551 { 1552 u_int64_t c; 1553 1554 c = counter_u64_fetch(pfrc->pkc_pcpu); 1555 pfrc->pkc_zero = c; 1556 } 1557 1558 static inline void 1559 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1560 { 1561 1562 counter_u64_add(pfrc->pkc_pcpu, n); 1563 } 1564 1565 struct pfr_ktstats { 1566 struct pfr_table pfrts_t; 1567 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1568 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1569 struct pfr_kstate_counter pfrkts_match; 1570 struct pfr_kstate_counter pfrkts_nomatch; 1571 time_t pfrkts_tzero; 1572 int pfrkts_cnt; 1573 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1574 }; 1575 1576 #endif /* _KERNEL */ 1577 1578 #define pfrts_name pfrts_t.pfrt_name 1579 #define pfrts_flags pfrts_t.pfrt_flags 1580 1581 #ifndef _SOCKADDR_UNION_DEFINED 1582 #define _SOCKADDR_UNION_DEFINED 1583 union sockaddr_union { 1584 struct sockaddr sa; 1585 struct sockaddr_in sin; 1586 struct sockaddr_in6 sin6; 1587 }; 1588 #endif /* _SOCKADDR_UNION_DEFINED */ 1589 1590 struct pfr_kcounters { 1591 counter_u64_t pfrkc_counters; 1592 time_t pfrkc_tzero; 1593 }; 1594 #define pfr_kentry_counter(kc, dir, op, t) \ 1595 ((kc)->pfrkc_counters + \ 1596 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1597 1598 #ifdef _KERNEL 1599 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1600 struct pfr_kentry { 1601 struct radix_node pfrke_node[2]; 1602 union sockaddr_union pfrke_sa; 1603 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1604 struct pfr_kcounters pfrke_counters; 1605 u_int8_t pfrke_af; 1606 u_int8_t pfrke_net; 1607 u_int8_t pfrke_not; 1608 u_int8_t pfrke_mark; 1609 }; 1610 1611 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1612 RB_HEAD(pfr_ktablehead, pfr_ktable); 1613 struct pfr_ktable { 1614 struct pfr_ktstats pfrkt_kts; 1615 RB_ENTRY(pfr_ktable) pfrkt_tree; 1616 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1617 struct radix_node_head *pfrkt_ip4; 1618 struct radix_node_head *pfrkt_ip6; 1619 struct pfr_ktable *pfrkt_shadow; 1620 struct pfr_ktable *pfrkt_root; 1621 struct pf_kruleset *pfrkt_rs; 1622 long pfrkt_larg; 1623 int pfrkt_nflags; 1624 }; 1625 #define pfrkt_t pfrkt_kts.pfrts_t 1626 #define pfrkt_name pfrkt_t.pfrt_name 1627 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1628 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1629 #define pfrkt_flags pfrkt_t.pfrt_flags 1630 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1631 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1632 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1633 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1634 #define pfrkt_match pfrkt_kts.pfrkts_match 1635 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1636 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1637 #endif 1638 1639 #ifdef _KERNEL 1640 struct pfi_kkif { 1641 char pfik_name[IFNAMSIZ]; 1642 union { 1643 RB_ENTRY(pfi_kkif) _pfik_tree; 1644 LIST_ENTRY(pfi_kkif) _pfik_list; 1645 } _pfik_glue; 1646 #define pfik_tree _pfik_glue._pfik_tree 1647 #define pfik_list _pfik_glue._pfik_list 1648 struct pf_counter_u64 pfik_packets[2][2][2]; 1649 struct pf_counter_u64 pfik_bytes[2][2][2]; 1650 time_t pfik_tzero; 1651 u_int pfik_flags; 1652 struct ifnet *pfik_ifp; 1653 struct ifg_group *pfik_group; 1654 u_int pfik_rulerefs; 1655 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1656 #ifdef PF_WANT_32_TO_64_COUNTER 1657 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1658 #endif 1659 }; 1660 #endif 1661 1662 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1663 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1664 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */ 1665 1666 #ifdef _KERNEL 1667 struct pf_sctp_multihome_job; 1668 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job); 1669 1670 struct pf_pdesc { 1671 struct { 1672 int done; 1673 uid_t uid; 1674 gid_t gid; 1675 } lookup; 1676 u_int64_t tot_len; /* Make Mickey money */ 1677 union pf_headers { 1678 struct tcphdr tcp; 1679 struct udphdr udp; 1680 struct sctphdr sctp; 1681 struct icmp icmp; 1682 #ifdef INET6 1683 struct icmp6_hdr icmp6; 1684 #endif /* INET6 */ 1685 char any[0]; 1686 } hdr; 1687 1688 struct pf_addr nsaddr; /* src address after NAT */ 1689 struct pf_addr ndaddr; /* dst address after NAT */ 1690 1691 struct pfi_kkif *kif; /* incomming interface */ 1692 struct mbuf *m; 1693 1694 struct pf_addr *src; /* src address */ 1695 struct pf_addr *dst; /* dst address */ 1696 struct pf_addr osrc; 1697 struct pf_addr odst; 1698 u_int16_t *pcksum; /* proto cksum */ 1699 u_int16_t *sport; 1700 u_int16_t *dport; 1701 u_int16_t osport; 1702 u_int16_t odport; 1703 u_int16_t nsport; /* src port after NAT */ 1704 u_int16_t ndport; /* dst port after NAT */ 1705 struct pf_mtag *pf_mtag; 1706 struct pf_rule_actions act; 1707 1708 u_int32_t off; /* protocol header offset */ 1709 bool df; /* IPv4 Don't fragment flag. */ 1710 u_int32_t hdrlen; /* protocol header length */ 1711 u_int32_t p_len; /* total length of protocol payload */ 1712 u_int32_t extoff; /* extentsion header offset */ 1713 u_int32_t fragoff; /* fragment header offset */ 1714 u_int32_t jumbolen; /* length from v6 jumbo header */ 1715 u_int32_t badopts; /* v4 options or v6 routing headers */ 1716 1717 u_int16_t *ip_sum; 1718 u_int16_t flags; /* Let SCRUB trigger behavior in 1719 * state code. Easier than tags */ 1720 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1721 u_int16_t virtual_proto; 1722 #define PF_VPROTO_FRAGMENT 256 1723 sa_family_t af; 1724 sa_family_t naf; 1725 u_int8_t proto; 1726 u_int8_t tos; 1727 u_int8_t ttl; 1728 u_int8_t dir; /* direction */ 1729 u_int8_t sidx; /* key index for source */ 1730 u_int8_t didx; /* key index for destination */ 1731 #define PFDESC_SCTP_INIT 0x0001 1732 #define PFDESC_SCTP_INIT_ACK 0x0002 1733 #define PFDESC_SCTP_COOKIE 0x0004 1734 #define PFDESC_SCTP_COOKIE_ACK 0x0008 1735 #define PFDESC_SCTP_ABORT 0x0010 1736 #define PFDESC_SCTP_SHUTDOWN 0x0020 1737 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040 1738 #define PFDESC_SCTP_DATA 0x0080 1739 #define PFDESC_SCTP_ASCONF 0x0100 1740 #define PFDESC_SCTP_HEARTBEAT 0x0200 1741 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400 1742 #define PFDESC_SCTP_OTHER 0x0800 1743 #define PFDESC_SCTP_ADD_IP 0x1000 1744 u_int16_t sctp_flags; 1745 u_int32_t sctp_initiate_tag; 1746 u_int16_t sctp_dummy_sum; 1747 struct pf_krule *related_rule; 1748 1749 struct pf_sctp_multihome_jobs sctp_multihome_jobs; 1750 }; 1751 1752 struct pf_sctp_multihome_job { 1753 TAILQ_ENTRY(pf_sctp_multihome_job) next; 1754 struct pf_pdesc pd; 1755 struct pf_addr src; 1756 struct pf_addr dst; 1757 int op; 1758 }; 1759 1760 #endif 1761 1762 /* flags for RDR options */ 1763 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1764 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1765 1766 /* UDP state enumeration */ 1767 #define PFUDPS_NO_TRAFFIC 0 1768 #define PFUDPS_SINGLE 1 1769 #define PFUDPS_MULTIPLE 2 1770 1771 #define PFUDPS_NSTATES 3 /* number of state levels */ 1772 1773 #define PFUDPS_NAMES { \ 1774 "NO_TRAFFIC", \ 1775 "SINGLE", \ 1776 "MULTIPLE", \ 1777 NULL \ 1778 } 1779 1780 /* Other protocol state enumeration */ 1781 #define PFOTHERS_NO_TRAFFIC 0 1782 #define PFOTHERS_SINGLE 1 1783 #define PFOTHERS_MULTIPLE 2 1784 1785 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1786 1787 #define PFOTHERS_NAMES { \ 1788 "NO_TRAFFIC", \ 1789 "SINGLE", \ 1790 "MULTIPLE", \ 1791 NULL \ 1792 } 1793 1794 #define ACTION_SET(a, x) \ 1795 do { \ 1796 if ((a) != NULL) \ 1797 *(a) = (x); \ 1798 } while (0) 1799 1800 #define REASON_SET(a, x) \ 1801 do { \ 1802 SDT_PROBE2(pf, , test, reason_set, x, __LINE__); \ 1803 if ((a) != NULL) \ 1804 *(a) = (x); \ 1805 if (x < PFRES_MAX) \ 1806 counter_u64_add(V_pf_status.counters[x], 1); \ 1807 } while (0) 1808 1809 enum pf_syncookies_mode { 1810 PF_SYNCOOKIES_NEVER = 0, 1811 PF_SYNCOOKIES_ALWAYS = 1, 1812 PF_SYNCOOKIES_ADAPTIVE = 2, 1813 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1814 }; 1815 1816 #define PF_SYNCOOKIES_HIWATPCT 25 1817 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1818 1819 #ifdef _KERNEL 1820 struct pf_kstatus { 1821 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1822 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1823 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1824 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1825 uint32_t states; 1826 uint32_t src_nodes; 1827 uint32_t running; 1828 uint32_t since; 1829 uint32_t debug; 1830 uint32_t hostid; 1831 char ifname[IFNAMSIZ]; 1832 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1833 bool keep_counters; 1834 enum pf_syncookies_mode syncookies_mode; 1835 bool syncookies_active; 1836 uint64_t syncookies_inflight[2]; 1837 uint32_t states_halfopen; 1838 uint32_t reass; 1839 }; 1840 #endif 1841 1842 struct pf_divert { 1843 union { 1844 struct in_addr ipv4; 1845 struct in6_addr ipv6; 1846 } addr; 1847 u_int16_t port; 1848 }; 1849 1850 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1851 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1852 1853 struct pf_fragment_tag { 1854 uint16_t ft_hdrlen; /* header length of reassembled pkt */ 1855 uint16_t ft_extoff; /* last extension header offset or 0 */ 1856 uint16_t ft_maxlen; /* maximum fragment payload length */ 1857 uint32_t ft_id; /* fragment id */ 1858 }; 1859 1860 /* 1861 * Limit the length of the fragment queue traversal. Remember 1862 * search entry points based on the fragment offset. 1863 */ 1864 #define PF_FRAG_ENTRY_POINTS 16 1865 1866 /* 1867 * The number of entries in the fragment queue must be limited 1868 * to avoid DoS by linear searching. Instead of a global limit, 1869 * use a limit per entry point. For large packets these sum up. 1870 */ 1871 #define PF_FRAG_ENTRY_LIMIT 64 1872 1873 /* 1874 * ioctl parameter structures 1875 */ 1876 1877 struct pfioc_pooladdr { 1878 u_int32_t action; 1879 u_int32_t ticket; 1880 u_int32_t nr; 1881 u_int32_t r_num; 1882 u_int8_t r_action; 1883 u_int8_t r_last; 1884 u_int8_t af; 1885 char anchor[MAXPATHLEN]; 1886 struct pf_pooladdr addr; 1887 }; 1888 1889 struct pfioc_rule { 1890 u_int32_t action; 1891 u_int32_t ticket; 1892 u_int32_t pool_ticket; 1893 u_int32_t nr; 1894 char anchor[MAXPATHLEN]; 1895 char anchor_call[MAXPATHLEN]; 1896 struct pf_rule rule; 1897 }; 1898 1899 struct pfioc_natlook { 1900 struct pf_addr saddr; 1901 struct pf_addr daddr; 1902 struct pf_addr rsaddr; 1903 struct pf_addr rdaddr; 1904 u_int16_t sport; 1905 u_int16_t dport; 1906 u_int16_t rsport; 1907 u_int16_t rdport; 1908 sa_family_t af; 1909 u_int8_t proto; 1910 u_int8_t direction; 1911 }; 1912 1913 struct pfioc_state { 1914 struct pfsync_state_1301 state; 1915 }; 1916 1917 struct pfioc_src_node_kill { 1918 sa_family_t psnk_af; 1919 struct pf_rule_addr psnk_src; 1920 struct pf_rule_addr psnk_dst; 1921 u_int psnk_killed; 1922 }; 1923 1924 #ifdef _KERNEL 1925 struct pf_kstate_kill { 1926 struct pf_state_cmp psk_pfcmp; 1927 sa_family_t psk_af; 1928 int psk_proto; 1929 struct pf_rule_addr psk_src; 1930 struct pf_rule_addr psk_dst; 1931 struct pf_rule_addr psk_rt_addr; 1932 char psk_ifname[IFNAMSIZ]; 1933 char psk_label[PF_RULE_LABEL_SIZE]; 1934 u_int psk_killed; 1935 bool psk_kill_match; 1936 bool psk_nat; 1937 }; 1938 #endif 1939 1940 struct pfioc_state_kill { 1941 struct pf_state_cmp psk_pfcmp; 1942 sa_family_t psk_af; 1943 int psk_proto; 1944 struct pf_rule_addr psk_src; 1945 struct pf_rule_addr psk_dst; 1946 char psk_ifname[IFNAMSIZ]; 1947 char psk_label[PF_RULE_LABEL_SIZE]; 1948 u_int psk_killed; 1949 }; 1950 1951 struct pfioc_states { 1952 int ps_len; 1953 union { 1954 void *ps_buf; 1955 struct pfsync_state_1301 *ps_states; 1956 }; 1957 }; 1958 1959 struct pfioc_states_v2 { 1960 int ps_len; 1961 uint64_t ps_req_version; 1962 union { 1963 void *ps_buf; 1964 struct pf_state_export *ps_states; 1965 }; 1966 }; 1967 1968 struct pfioc_src_nodes { 1969 int psn_len; 1970 union { 1971 void *psn_buf; 1972 struct pf_src_node *psn_src_nodes; 1973 }; 1974 }; 1975 1976 struct pfioc_if { 1977 char ifname[IFNAMSIZ]; 1978 }; 1979 1980 struct pfioc_tm { 1981 int timeout; 1982 int seconds; 1983 }; 1984 1985 struct pfioc_limit { 1986 int index; 1987 unsigned limit; 1988 }; 1989 1990 struct pfioc_altq_v0 { 1991 u_int32_t action; 1992 u_int32_t ticket; 1993 u_int32_t nr; 1994 struct pf_altq_v0 altq; 1995 }; 1996 1997 struct pfioc_altq_v1 { 1998 u_int32_t action; 1999 u_int32_t ticket; 2000 u_int32_t nr; 2001 /* 2002 * Placed here so code that only uses the above parameters can be 2003 * written entirely in terms of the v0 or v1 type. 2004 */ 2005 u_int32_t version; 2006 struct pf_altq_v1 altq; 2007 }; 2008 2009 /* 2010 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 2011 * the latest version of struct pf_altq_vX as it has that struct as a 2012 * member. 2013 */ 2014 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 2015 2016 struct pfioc_qstats_v0 { 2017 u_int32_t ticket; 2018 u_int32_t nr; 2019 void *buf; 2020 int nbytes; 2021 u_int8_t scheduler; 2022 }; 2023 2024 struct pfioc_qstats_v1 { 2025 u_int32_t ticket; 2026 u_int32_t nr; 2027 void *buf; 2028 int nbytes; 2029 u_int8_t scheduler; 2030 /* 2031 * Placed here so code that only uses the above parameters can be 2032 * written entirely in terms of the v0 or v1 type. 2033 */ 2034 u_int32_t version; /* Requested version of stats struct */ 2035 }; 2036 2037 /* Latest version of struct pfioc_qstats_vX */ 2038 #define PFIOC_QSTATS_VERSION 1 2039 2040 struct pfioc_ruleset { 2041 u_int32_t nr; 2042 char path[MAXPATHLEN]; 2043 char name[PF_ANCHOR_NAME_SIZE]; 2044 }; 2045 2046 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 2047 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 2048 #define PF_RULESET_ETH (PF_RULESET_MAX+2) 2049 struct pfioc_trans { 2050 int size; /* number of elements */ 2051 int esize; /* size of each element in bytes */ 2052 struct pfioc_trans_e { 2053 int rs_num; 2054 char anchor[MAXPATHLEN]; 2055 u_int32_t ticket; 2056 } *array; 2057 }; 2058 2059 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 2060 #define PFR_FLAG_DUMMY 0x00000002 2061 #define PFR_FLAG_FEEDBACK 0x00000004 2062 #define PFR_FLAG_CLSTATS 0x00000008 2063 #define PFR_FLAG_ADDRSTOO 0x00000010 2064 #define PFR_FLAG_REPLACE 0x00000020 2065 #define PFR_FLAG_ALLRSETS 0x00000040 2066 #define PFR_FLAG_ALLMASK 0x0000007F 2067 #ifdef _KERNEL 2068 #define PFR_FLAG_USERIOCTL 0x10000000 2069 #endif 2070 2071 struct pfioc_table { 2072 struct pfr_table pfrio_table; 2073 void *pfrio_buffer; 2074 int pfrio_esize; 2075 int pfrio_size; 2076 int pfrio_size2; 2077 int pfrio_nadd; 2078 int pfrio_ndel; 2079 int pfrio_nchange; 2080 int pfrio_flags; 2081 u_int32_t pfrio_ticket; 2082 }; 2083 #define pfrio_exists pfrio_nadd 2084 #define pfrio_nzero pfrio_nadd 2085 #define pfrio_nmatch pfrio_nadd 2086 #define pfrio_naddr pfrio_size2 2087 #define pfrio_setflag pfrio_size2 2088 #define pfrio_clrflag pfrio_nadd 2089 2090 struct pfioc_iface { 2091 char pfiio_name[IFNAMSIZ]; 2092 void *pfiio_buffer; 2093 int pfiio_esize; 2094 int pfiio_size; 2095 int pfiio_nzero; 2096 int pfiio_flags; 2097 }; 2098 2099 /* 2100 * ioctl operations 2101 */ 2102 2103 #define DIOCSTART _IO ('D', 1) 2104 #define DIOCSTOP _IO ('D', 2) 2105 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2106 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 2107 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2108 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 2109 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 2110 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2111 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 2112 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2113 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv) 2114 #define DIOCCLRSTATUS _IO ('D', 22) 2115 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2116 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2117 #ifdef COMPAT_FREEBSD14 2118 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2119 #endif 2120 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2121 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2122 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2123 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2124 #define DIOCCLRRULECTRS _IO ('D', 38) 2125 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2126 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2127 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 2128 #define DIOCSTARTALTQ _IO ('D', 42) 2129 #define DIOCSTOPALTQ _IO ('D', 43) 2130 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 2131 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 2132 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 2133 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 2134 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 2135 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 2136 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 2137 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 2138 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 2139 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 2140 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2141 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2142 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2143 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2144 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2145 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2146 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2147 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2148 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2149 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2150 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2151 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2152 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2153 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2154 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2155 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2156 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2157 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2158 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2159 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2160 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2161 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2162 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2163 #define DIOCOSFPFLUSH _IO('D', 78) 2164 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2165 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2166 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2167 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2168 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2169 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2170 #define DIOCCLRSRCNODES _IO('D', 85) 2171 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2172 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2173 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2174 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2175 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2176 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 2177 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 2178 #ifdef COMPAT_FREEBSD14 2179 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2) 2180 #endif 2181 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv) 2182 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv) 2183 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv) 2184 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv) 2185 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv) 2186 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv) 2187 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv) 2188 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv) 2189 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv) 2190 #define DIOCSETREASS _IOWR('D', 102, u_int32_t) 2191 2192 struct pf_ifspeed_v0 { 2193 char ifname[IFNAMSIZ]; 2194 u_int32_t baudrate; 2195 }; 2196 2197 struct pf_ifspeed_v1 { 2198 char ifname[IFNAMSIZ]; 2199 u_int32_t baudrate32; 2200 /* layout identical to struct pf_ifspeed_v0 up to this point */ 2201 u_int64_t baudrate; 2202 }; 2203 2204 /* Latest version of struct pf_ifspeed_vX */ 2205 #define PF_IFSPEED_VERSION 1 2206 2207 /* 2208 * Compatibility and convenience macros 2209 */ 2210 #ifndef _KERNEL 2211 #ifdef PFIOC_USE_LATEST 2212 /* 2213 * Maintaining in-tree consumers of the ioctl interface is easier when that 2214 * code can be written in terms old names that refer to the latest interface 2215 * version as that reduces the required changes in the consumers to those 2216 * that are functionally necessary to accommodate a new interface version. 2217 */ 2218 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 2219 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 2220 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 2221 2222 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 2223 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 2224 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 2225 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 2226 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 2227 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 2228 #else 2229 /* 2230 * When building out-of-tree code that is written for the old interface, 2231 * such as may exist in ports for example, resolve the old struct tags and 2232 * ioctl command names to the v0 versions. 2233 */ 2234 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 2235 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 2236 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 2237 2238 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 2239 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 2240 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 2241 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 2242 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 2243 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 2244 #endif /* PFIOC_USE_LATEST */ 2245 #endif /* _KERNEL */ 2246 2247 #ifdef _KERNEL 2248 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 2249 struct pf_srchash { 2250 struct pf_ksrc_node_list nodes; 2251 struct mtx lock; 2252 }; 2253 2254 struct pf_keyhash { 2255 LIST_HEAD(, pf_state_key) keys; 2256 struct mtx lock; 2257 }; 2258 2259 struct pf_idhash { 2260 LIST_HEAD(, pf_kstate) states; 2261 struct mtx lock; 2262 }; 2263 2264 struct pf_udpendpointhash { 2265 LIST_HEAD(, pf_udp_endpoint) endpoints; 2266 /* refcont is synchronized on the source endpoint's row lock */ 2267 struct mtx lock; 2268 }; 2269 2270 extern u_long pf_ioctl_maxcount; 2271 VNET_DECLARE(u_long, pf_hashmask); 2272 #define V_pf_hashmask VNET(pf_hashmask) 2273 VNET_DECLARE(u_long, pf_srchashmask); 2274 #define V_pf_srchashmask VNET(pf_srchashmask) 2275 VNET_DECLARE(u_long, pf_udpendpointhashmask); 2276 #define V_pf_udpendpointhashmask VNET(pf_udpendpointhashmask) 2277 #define PF_HASHSIZ (131072) 2278 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 2279 #define PF_UDPENDHASHSIZ (PF_HASHSIZ/4) 2280 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 2281 VNET_DECLARE(struct pf_idhash *, pf_idhash); 2282 VNET_DECLARE(struct pf_udpendpointhash *, pf_udpendpointhash); 2283 #define V_pf_keyhash VNET(pf_keyhash) 2284 #define V_pf_idhash VNET(pf_idhash) 2285 #define V_pf_udpendpointhash VNET(pf_udpendpointhash) 2286 VNET_DECLARE(struct pf_srchash *, pf_srchash); 2287 #define V_pf_srchash VNET(pf_srchash) 2288 2289 #define PF_IDHASHID(id) (be64toh(id) % (V_pf_hashmask + 1)) 2290 #define PF_IDHASH(s) PF_IDHASHID((s)->id) 2291 2292 VNET_DECLARE(void *, pf_swi_cookie); 2293 #define V_pf_swi_cookie VNET(pf_swi_cookie) 2294 VNET_DECLARE(struct intr_event *, pf_swi_ie); 2295 #define V_pf_swi_ie VNET(pf_swi_ie) 2296 2297 VNET_DECLARE(struct unrhdr64, pf_stateid); 2298 #define V_pf_stateid VNET(pf_stateid) 2299 2300 TAILQ_HEAD(pf_altqqueue, pf_altq); 2301 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 2302 #define V_pf_altqs VNET(pf_altqs) 2303 VNET_DECLARE(struct pf_kpalist, pf_pabuf[3]); 2304 #define V_pf_pabuf VNET(pf_pabuf) 2305 2306 VNET_DECLARE(u_int32_t, ticket_altqs_active); 2307 #define V_ticket_altqs_active VNET(ticket_altqs_active) 2308 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 2309 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 2310 VNET_DECLARE(int, altqs_inactive_open); 2311 #define V_altqs_inactive_open VNET(altqs_inactive_open) 2312 VNET_DECLARE(u_int32_t, ticket_pabuf); 2313 #define V_ticket_pabuf VNET(ticket_pabuf) 2314 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 2315 #define V_pf_altqs_active VNET(pf_altqs_active) 2316 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 2317 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 2318 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 2319 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 2320 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 2321 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 2322 2323 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 2324 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 2325 2326 #ifdef PF_WANT_32_TO_64_COUNTER 2327 LIST_HEAD(allkiflist_head, pfi_kkif); 2328 VNET_DECLARE(struct allkiflist_head, pf_allkiflist); 2329 #define V_pf_allkiflist VNET(pf_allkiflist) 2330 VNET_DECLARE(size_t, pf_allkifcount); 2331 #define V_pf_allkifcount VNET(pf_allkifcount) 2332 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker); 2333 #define V_pf_kifmarker VNET(pf_kifmarker) 2334 2335 LIST_HEAD(allrulelist_head, pf_krule); 2336 VNET_DECLARE(struct allrulelist_head, pf_allrulelist); 2337 #define V_pf_allrulelist VNET(pf_allrulelist) 2338 VNET_DECLARE(size_t, pf_allrulecount); 2339 #define V_pf_allrulecount VNET(pf_allrulecount) 2340 VNET_DECLARE(struct pf_krule *, pf_rulemarker); 2341 #define V_pf_rulemarker VNET(pf_rulemarker) 2342 #endif 2343 2344 void unhandled_af(int) __dead2; 2345 int pf_start(void); 2346 int pf_stop(void); 2347 void pf_initialize(void); 2348 void pf_mtag_initialize(void); 2349 void pf_mtag_cleanup(void); 2350 void pf_cleanup(void); 2351 2352 struct pf_mtag *pf_get_mtag(struct mbuf *); 2353 2354 extern void pf_calc_skip_steps(struct pf_krulequeue *); 2355 #ifdef ALTQ 2356 extern void pf_altq_ifnet_event(struct ifnet *, int); 2357 #endif 2358 VNET_DECLARE(uma_zone_t, pf_state_z); 2359 #define V_pf_state_z VNET(pf_state_z) 2360 VNET_DECLARE(uma_zone_t, pf_state_key_z); 2361 #define V_pf_state_key_z VNET(pf_state_key_z) 2362 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z); 2363 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z) 2364 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 2365 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 2366 2367 extern void pf_purge_thread(void *); 2368 extern void pf_unload_vnet_purge(void); 2369 extern void pf_intr(void *); 2370 extern void pf_purge_expired_src_nodes(void); 2371 2372 extern int pf_remove_state(struct pf_kstate *); 2373 extern int pf_state_insert(struct pfi_kkif *, 2374 struct pfi_kkif *, 2375 struct pf_state_key *, 2376 struct pf_state_key *, 2377 struct pf_kstate *); 2378 extern struct pf_kstate *pf_alloc_state(int); 2379 extern void pf_free_state(struct pf_kstate *); 2380 extern void pf_killstates(struct pf_kstate_kill *, 2381 unsigned int *); 2382 extern unsigned int pf_clear_states(const struct pf_kstate_kill *); 2383 2384 static __inline void 2385 pf_ref_state(struct pf_kstate *s) 2386 { 2387 2388 refcount_acquire(&s->refs); 2389 } 2390 2391 static __inline int 2392 pf_release_state(struct pf_kstate *s) 2393 { 2394 2395 if (refcount_release(&s->refs)) { 2396 pf_free_state(s); 2397 return (1); 2398 } else 2399 return (0); 2400 } 2401 2402 static __inline int 2403 pf_release_staten(struct pf_kstate *s, u_int n) 2404 { 2405 2406 if (refcount_releasen(&s->refs, n)) { 2407 pf_free_state(s); 2408 return (1); 2409 } else 2410 return (0); 2411 } 2412 2413 static __inline uint64_t 2414 pf_get_uptime(void) 2415 { 2416 struct timeval t; 2417 microuptime(&t); 2418 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2419 } 2420 2421 static __inline uint64_t 2422 pf_get_time(void) 2423 { 2424 struct timeval t; 2425 microtime(&t); 2426 return ((t.tv_sec * 1000) + (t.tv_usec / 1000)); 2427 } 2428 2429 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 2430 extern struct pf_kstate *pf_find_state_all( 2431 const struct pf_state_key_cmp *, 2432 u_int, int *); 2433 extern bool pf_find_state_all_exists( 2434 const struct pf_state_key_cmp *, 2435 u_int); 2436 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp 2437 *endpoint); 2438 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af, 2439 struct pf_addr *src_addr, uint16_t src_port, 2440 struct pf_addr *nat_addr, uint16_t nat_port); 2441 extern int pf_udp_mapping_insert(struct pf_udp_mapping 2442 *mapping); 2443 extern void pf_udp_mapping_release(struct pf_udp_mapping 2444 *mapping); 2445 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t); 2446 extern bool pf_src_node_exists(struct pf_ksrc_node **, 2447 struct pf_srchash *); 2448 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 2449 struct pf_krule *, sa_family_t, 2450 struct pf_srchash **, pf_sn_types_t, bool); 2451 extern void pf_unlink_src_node(struct pf_ksrc_node *); 2452 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 2453 extern void pf_print_state(struct pf_kstate *); 2454 extern void pf_print_flags(uint16_t); 2455 extern int pf_addr_wrap_neq(struct pf_addr_wrap *, 2456 struct pf_addr_wrap *); 2457 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2458 u_int8_t); 2459 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 2460 u_int16_t, u_int16_t, u_int8_t); 2461 2462 VNET_DECLARE(struct ifnet *, sync_ifp); 2463 #define V_sync_ifp VNET(sync_ifp); 2464 VNET_DECLARE(struct pf_krule, pf_default_rule); 2465 #define V_pf_default_rule VNET(pf_default_rule) 2466 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *, 2467 sa_family_t); 2468 void pf_free_rule(struct pf_krule *); 2469 2470 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 2471 int pf_scan_sctp(struct pf_pdesc *); 2472 #if defined(INET) || defined(INET6) 2473 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *, 2474 struct pf_rule_actions *); 2475 #endif 2476 #ifdef INET 2477 int pf_normalize_ip(u_short *, struct pf_pdesc *); 2478 #endif /* INET */ 2479 2480 #ifdef INET6 2481 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *); 2482 void pf_poolmask(struct pf_addr *, struct pf_addr*, 2483 struct pf_addr *, struct pf_addr *, sa_family_t); 2484 void pf_addr_inc(struct pf_addr *, sa_family_t); 2485 int pf_max_frag_size(struct mbuf *); 2486 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, 2487 struct ifnet *, bool); 2488 #endif /* INET6 */ 2489 2490 int pf_multihome_scan_init(int, int, struct pf_pdesc *); 2491 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *); 2492 2493 u_int32_t pf_new_isn(struct pf_kstate *); 2494 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, u_short *, 2495 sa_family_t); 2496 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2497 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2498 u_int8_t); 2499 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2500 int pf_patch_16(struct pf_pdesc *, void *, u_int16_t, bool); 2501 int pf_patch_32(struct pf_pdesc *, void *, u_int32_t, bool); 2502 void pf_send_deferred_syn(struct pf_kstate *); 2503 int pf_match_addr(u_int8_t, const struct pf_addr *, 2504 const struct pf_addr *, const struct pf_addr *, sa_family_t); 2505 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *, 2506 const struct pf_addr *, sa_family_t); 2507 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2508 2509 void pf_normalize_init(void); 2510 void pf_normalize_cleanup(void); 2511 int pf_normalize_tcp(struct pf_pdesc *); 2512 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2513 int pf_normalize_tcp_init(struct pf_pdesc *, 2514 struct tcphdr *, struct pf_state_peer *); 2515 int pf_normalize_tcp_stateful(struct pf_pdesc *, 2516 u_short *, struct tcphdr *, struct pf_kstate *, 2517 struct pf_state_peer *, struct pf_state_peer *, int *); 2518 int pf_normalize_sctp_init(struct pf_pdesc *, 2519 struct pf_state_peer *, struct pf_state_peer *); 2520 int pf_normalize_sctp(struct pf_pdesc *); 2521 u_int32_t 2522 pf_state_expires(const struct pf_kstate *); 2523 void pf_purge_expired_fragments(void); 2524 void pf_purge_fragments(uint32_t); 2525 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2526 int); 2527 int pf_socket_lookup(struct pf_pdesc *); 2528 struct pf_state_key *pf_alloc_state_key(int); 2529 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t, 2530 struct pf_addr *, u_int16_t, u_int16_t, int); 2531 int pf_translate_af(struct pf_pdesc *); 2532 bool pf_init_threshold(struct pf_kthreshold *, uint32_t, uint32_t); 2533 2534 void pfr_initialize(void); 2535 void pfr_cleanup(void); 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); 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 2575 MALLOC_DECLARE(PFI_MTYPE); 2576 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2577 #define V_pfi_all VNET(pfi_all) 2578 2579 void pfi_initialize(void); 2580 void pfi_initialize_vnet(void); 2581 void pfi_cleanup(void); 2582 void pfi_cleanup_vnet(void); 2583 void pfi_kkif_ref(struct pfi_kkif *); 2584 void pfi_kkif_unref(struct pfi_kkif *); 2585 struct pfi_kkif *pfi_kkif_find(const char *); 2586 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2587 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2588 void pfi_kkif_purge(void); 2589 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2590 sa_family_t); 2591 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2592 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2593 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2594 void pfi_update_status(const char *, struct pf_status *); 2595 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2596 int pfi_set_flags(const char *, int); 2597 int pfi_clear_flags(const char *, int); 2598 2599 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2600 int pf_tag_packet(struct pf_pdesc *, int); 2601 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2602 sa_family_t); 2603 2604 uint8_t* pf_find_tcpopt(u_int8_t *, u_int8_t *, size_t, 2605 u_int8_t, u_int8_t); 2606 u_int16_t pf_get_mss(struct pf_pdesc *); 2607 u_int8_t pf_get_wscale(struct pf_pdesc *); 2608 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2609 const struct pf_addr *, const struct pf_addr *, 2610 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2611 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2612 u_int16_t, u_int16_t, u_int, int); 2613 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2614 const struct pf_addr *, const struct pf_addr *, 2615 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2616 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2617 u_int16_t, u_int16_t, int); 2618 2619 void pf_syncookies_init(void); 2620 void pf_syncookies_cleanup(void); 2621 int pf_get_syncookies(struct pfioc_nv *); 2622 int pf_set_syncookies(struct pfioc_nv *); 2623 int pf_synflood_check(struct pf_pdesc *); 2624 void pf_syncookie_send(struct pf_pdesc *); 2625 bool pf_syncookie_check(struct pf_pdesc *); 2626 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2627 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *); 2628 2629 VNET_DECLARE(struct pf_kstatus, pf_status); 2630 #define V_pf_status VNET(pf_status) 2631 2632 struct pf_limit { 2633 uma_zone_t zone; 2634 u_int limit; 2635 }; 2636 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2637 #define V_pf_limits VNET(pf_limits) 2638 2639 #endif /* _KERNEL */ 2640 2641 #ifdef _KERNEL 2642 struct pf_nl_pooladdr { 2643 u_int32_t action; 2644 u_int32_t ticket; 2645 u_int32_t nr; 2646 u_int32_t r_num; 2647 u_int8_t r_action; 2648 u_int8_t r_last; 2649 u_int8_t af; 2650 char anchor[MAXPATHLEN]; 2651 struct pf_pooladdr addr; 2652 /* Above this is identical to pfioc_pooladdr */ 2653 int which; 2654 }; 2655 2656 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2657 #define V_pf_anchors VNET(pf_anchors) 2658 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2659 #define V_pf_main_anchor VNET(pf_main_anchor) 2660 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors); 2661 #define V_pf_keth_anchors VNET(pf_keth_anchors) 2662 #define pf_main_ruleset V_pf_main_anchor.ruleset 2663 2664 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor); 2665 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor) 2666 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth); 2667 #define V_pf_keth VNET(pf_keth) 2668 2669 void pf_init_kruleset(struct pf_kruleset *); 2670 void pf_init_keth(struct pf_keth_ruleset *); 2671 int pf_kanchor_setup(struct pf_krule *, 2672 const struct pf_kruleset *, const char *); 2673 int pf_kanchor_copyout(const struct pf_kruleset *, 2674 const struct pf_krule *, char *, size_t); 2675 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2676 const struct pf_krule *, nvlist_t *); 2677 void pf_kanchor_remove(struct pf_krule *); 2678 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2679 struct pf_kruleset *pf_find_kruleset(const char *); 2680 struct pf_kruleset *pf_get_leaf_kruleset(char *, char **); 2681 struct pf_kanchor *pf_create_kanchor(struct pf_kanchor *, const char *); 2682 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2683 void pf_rs_initialize(void); 2684 2685 2686 struct pf_krule *pf_krule_alloc(void); 2687 2688 void pf_remove_if_empty_keth_ruleset( 2689 struct pf_keth_ruleset *); 2690 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *); 2691 struct pf_keth_anchor *pf_find_keth_anchor(const char *); 2692 int pf_keth_anchor_setup(struct pf_keth_rule *, 2693 const struct pf_keth_ruleset *, const char *); 2694 int pf_keth_anchor_nvcopyout( 2695 const struct pf_keth_ruleset *, 2696 const struct pf_keth_rule *, nvlist_t *); 2697 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *); 2698 void pf_keth_anchor_remove(struct pf_keth_rule *); 2699 2700 int pf_ioctl_getrules(struct pfioc_rule *); 2701 int pf_ioctl_addrule(struct pf_krule *, uint32_t, 2702 uint32_t, const char *, const char *, uid_t uid, 2703 pid_t); 2704 void pf_ioctl_clear_status(void); 2705 int pf_ioctl_get_timeout(int, int *); 2706 int pf_ioctl_set_timeout(int, int, int *); 2707 int pf_ioctl_get_limit(int, unsigned int *); 2708 int pf_ioctl_set_limit(int, unsigned int, unsigned int *); 2709 int pf_ioctl_begin_addrs(uint32_t *); 2710 int pf_ioctl_add_addr(struct pf_nl_pooladdr *); 2711 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *); 2712 int pf_ioctl_get_addr(struct pf_nl_pooladdr *); 2713 int pf_ioctl_get_rulesets(struct pfioc_ruleset *); 2714 int pf_ioctl_get_ruleset(struct pfioc_ruleset *); 2715 2716 void pf_krule_free(struct pf_krule *); 2717 void pf_krule_clear_counters(struct pf_krule *); 2718 void pf_addr_copyout(struct pf_addr_wrap *); 2719 #endif 2720 2721 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2722 int pf_osfp_add(struct pf_osfp_ioctl *); 2723 #ifdef _KERNEL 2724 struct pf_osfp_enlist * 2725 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *); 2726 #endif /* _KERNEL */ 2727 void pf_osfp_flush(void); 2728 int pf_osfp_get(struct pf_osfp_ioctl *); 2729 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2730 2731 #ifdef _KERNEL 2732 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t); 2733 2734 enum pf_test_status pf_step_into_anchor(struct pf_test_ctx *, struct pf_krule *); 2735 enum pf_test_status pf_match_rule(struct pf_test_ctx *, struct pf_kruleset *); 2736 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *, 2737 int *, struct pf_keth_ruleset **, 2738 struct pf_keth_rule **, struct pf_keth_rule **, 2739 int *); 2740 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *, 2741 int *, struct pf_keth_ruleset **, 2742 struct pf_keth_rule **, struct pf_keth_rule **, 2743 int *); 2744 2745 u_short pf_map_addr(u_int8_t, struct pf_krule *, 2746 struct pf_addr *, struct pf_addr *, 2747 struct pfi_kkif **nkif, struct pf_addr *, 2748 struct pf_kpool *); 2749 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *, 2750 struct pf_addr *, struct pf_addr *, 2751 struct pfi_kkif **nkif, struct pf_addr *, 2752 struct pf_ksrc_node **, struct pf_srchash **, 2753 struct pf_kpool *, pf_sn_types_t); 2754 int pf_get_transaddr_af(struct pf_krule *, 2755 struct pf_pdesc *); 2756 u_short pf_get_translation(struct pf_test_ctx *); 2757 u_short pf_get_transaddr(struct pf_test_ctx *, 2758 struct pf_krule *, 2759 u_int8_t, struct pf_kpool *); 2760 int pf_translate_compat(struct pf_test_ctx *); 2761 2762 int pf_state_key_setup(struct pf_pdesc *, 2763 u_int16_t, u_int16_t, 2764 struct pf_state_key **sk, struct pf_state_key **nk); 2765 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *); 2766 void pf_rule_to_actions(struct pf_krule *, 2767 struct pf_rule_actions *); 2768 int pf_normalize_mss(struct pf_pdesc *pd); 2769 #if defined(INET) || defined(INET6) 2770 void pf_scrub(struct pf_pdesc *); 2771 #endif 2772 2773 struct pfi_kkif *pf_kkif_create(int); 2774 void pf_kkif_free(struct pfi_kkif *); 2775 void pf_kkif_zero(struct pfi_kkif *); 2776 2777 2778 /* NAT64 functions. */ 2779 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 2780 int inet_nat64_inet(const void *, void *, const void *, u_int8_t); 2781 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t); 2782 2783 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 2784 int inet_nat46_inet(const void *, void *, const void *, u_int8_t); 2785 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t); 2786 2787 #endif /* _KERNEL */ 2788 2789 #endif /* _NET_PFVAR_H_ */ 2790