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 * $FreeBSD$ 33 */ 34 35 #ifndef _NET_PFVAR_H_ 36 #define _NET_PFVAR_H_ 37 38 #include <sys/param.h> 39 #include <sys/queue.h> 40 #include <sys/counter.h> 41 #include <sys/cpuset.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/radix.h> 56 #include <netinet/in.h> 57 #ifdef _KERNEL 58 #include <netinet/ip.h> 59 #include <netinet/tcp.h> 60 #include <netinet/udp.h> 61 #include <netinet/ip_icmp.h> 62 #include <netinet/icmp6.h> 63 #endif 64 65 #include <netpfil/pf/pf.h> 66 #include <netpfil/pf/pf_altq.h> 67 #include <netpfil/pf/pf_mtag.h> 68 69 #ifdef _KERNEL 70 71 #if defined(__arm__) 72 #define PF_WANT_32_TO_64_COUNTER 73 #endif 74 75 /* 76 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where 77 * counter(9) is very expensive. 78 * 79 * As 32-bit counters are expected to overflow, a periodic job sums them up to 80 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most 81 * current snapshot. 82 */ 83 #ifdef PF_WANT_32_TO_64_COUNTER 84 struct pf_counter_u64_pcpu { 85 u_int32_t current; 86 u_int32_t snapshot; 87 }; 88 89 struct pf_counter_u64 { 90 struct pf_counter_u64_pcpu *pfcu64_pcpu; 91 u_int64_t pfcu64_value; 92 seqc_t pfcu64_seqc; 93 }; 94 95 static inline int 96 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags) 97 { 98 99 pfcu64->pfcu64_value = 0; 100 pfcu64->pfcu64_seqc = 0; 101 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_8, flags | M_ZERO); 102 if (__predict_false(pfcu64->pfcu64_pcpu == NULL)) 103 return (ENOMEM); 104 return (0); 105 } 106 107 static inline void 108 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64) 109 { 110 111 uma_zfree_pcpu(pcpu_zone_8, pfcu64->pfcu64_pcpu); 112 } 113 114 static inline void 115 pf_counter_u64_critical_enter(void) 116 { 117 118 critical_enter(); 119 } 120 121 static inline void 122 pf_counter_u64_critical_exit(void) 123 { 124 125 critical_exit(); 126 } 127 128 static inline void 129 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n) 130 { 131 struct pf_counter_u64_pcpu *pcpu; 132 u_int32_t val; 133 134 MPASS(curthread->td_critnest > 0); 135 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu); 136 val = atomic_load_int(&pcpu->current); 137 atomic_store_int(&pcpu->current, val + n); 138 } 139 140 static inline void 141 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n) 142 { 143 144 critical_enter(); 145 pf_counter_u64_add_protected(pfcu64, n); 146 critical_exit(); 147 } 148 149 static inline u_int64_t 150 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64) 151 { 152 struct pf_counter_u64_pcpu *pcpu; 153 u_int64_t sum; 154 u_int32_t val; 155 int cpu; 156 157 MPASS(curthread->td_critnest > 0); 158 seqc_write_begin(&pfcu64->pfcu64_seqc); 159 sum = pfcu64->pfcu64_value; 160 CPU_FOREACH(cpu) { 161 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 162 val = atomic_load_int(&pcpu->current); 163 sum += (uint32_t)(val - pcpu->snapshot); 164 pcpu->snapshot = val; 165 } 166 pfcu64->pfcu64_value = sum; 167 seqc_write_end(&pfcu64->pfcu64_seqc); 168 return (sum); 169 } 170 171 static inline u_int64_t 172 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64) 173 { 174 struct pf_counter_u64_pcpu *pcpu; 175 u_int64_t sum; 176 seqc_t seqc; 177 int cpu; 178 179 for (;;) { 180 seqc = seqc_read(&pfcu64->pfcu64_seqc); 181 sum = 0; 182 CPU_FOREACH(cpu) { 183 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 184 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot); 185 } 186 sum += pfcu64->pfcu64_value; 187 if (seqc_consistent(&pfcu64->pfcu64_seqc, seqc)) 188 break; 189 } 190 return (sum); 191 } 192 193 static inline void 194 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64) 195 { 196 struct pf_counter_u64_pcpu *pcpu; 197 int cpu; 198 199 MPASS(curthread->td_critnest > 0); 200 seqc_write_begin(&pfcu64->pfcu64_seqc); 201 CPU_FOREACH(cpu) { 202 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu); 203 pcpu->snapshot = atomic_load_int(&pcpu->current); 204 } 205 pfcu64->pfcu64_value = 0; 206 seqc_write_end(&pfcu64->pfcu64_seqc); 207 } 208 209 static inline void 210 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64) 211 { 212 213 critical_enter(); 214 pf_counter_u64_zero_protected(pfcu64); 215 critical_exit(); 216 } 217 #else 218 struct pf_counter_u64 { 219 counter_u64_t counter; 220 }; 221 222 static inline int 223 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags) 224 { 225 226 pfcu64->counter = counter_u64_alloc(flags); 227 if (__predict_false(pfcu64->counter == NULL)) 228 return (ENOMEM); 229 return (0); 230 } 231 232 static inline void 233 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64) 234 { 235 236 counter_u64_free(pfcu64->counter); 237 } 238 239 static inline void 240 pf_counter_u64_critical_enter(void) 241 { 242 243 } 244 245 static inline void 246 pf_counter_u64_critical_exit(void) 247 { 248 249 } 250 251 static inline void 252 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n) 253 { 254 255 counter_u64_add(pfcu64->counter, n); 256 } 257 258 static inline void 259 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n) 260 { 261 262 pf_counter_u64_add_protected(pfcu64, n); 263 } 264 265 static inline u_int64_t 266 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64) 267 { 268 269 return (counter_u64_fetch(pfcu64->counter)); 270 } 271 272 static inline void 273 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64) 274 { 275 276 counter_u64_zero(pfcu64->counter); 277 } 278 279 static inline void 280 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64) 281 { 282 283 pf_counter_u64_zero_protected(pfcu64); 284 } 285 #endif 286 287 SYSCTL_DECL(_net_pf); 288 MALLOC_DECLARE(M_PFHASH); 289 290 SDT_PROVIDER_DECLARE(pf); 291 292 struct pfi_dynaddr { 293 TAILQ_ENTRY(pfi_dynaddr) entry; 294 struct pf_addr pfid_addr4; 295 struct pf_addr pfid_mask4; 296 struct pf_addr pfid_addr6; 297 struct pf_addr pfid_mask6; 298 struct pfr_ktable *pfid_kt; 299 struct pfi_kkif *pfid_kif; 300 int pfid_net; /* mask or 128 */ 301 int pfid_acnt4; /* address count IPv4 */ 302 int pfid_acnt6; /* address count IPv6 */ 303 sa_family_t pfid_af; /* rule af */ 304 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 305 }; 306 307 /* 308 * Address manipulation macros 309 */ 310 #define HTONL(x) (x) = htonl((__uint32_t)(x)) 311 #define HTONS(x) (x) = htons((__uint16_t)(x)) 312 #define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 313 #define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 314 315 #define PF_NAME "pf" 316 317 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 318 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 319 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 320 321 #ifdef INVARIANTS 322 #define PF_STATE_LOCK(s) \ 323 do { \ 324 struct pf_kstate *_s = (s); \ 325 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 326 MPASS(_s->lock == &_ih->lock); \ 327 mtx_lock(_s->lock); \ 328 } while (0) 329 #define PF_STATE_UNLOCK(s) \ 330 do { \ 331 struct pf_kstate *_s = (s); \ 332 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 333 MPASS(_s->lock == &_ih->lock); \ 334 mtx_unlock(_s->lock); \ 335 } while (0) 336 #else 337 #define PF_STATE_LOCK(s) mtx_lock(s->lock) 338 #define PF_STATE_UNLOCK(s) mtx_unlock(s->lock) 339 #endif 340 341 #ifdef INVARIANTS 342 #define PF_STATE_LOCK_ASSERT(s) \ 343 do { \ 344 struct pf_kstate *_s = (s); \ 345 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \ 346 MPASS(_s->lock == &_ih->lock); \ 347 PF_HASHROW_ASSERT(_ih); \ 348 } while (0) 349 #else /* !INVARIANTS */ 350 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 351 #endif /* INVARIANTS */ 352 353 extern struct mtx_padalign pf_unlnkdrules_mtx; 354 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 355 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 356 357 extern struct rmlock pf_rules_lock; 358 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 359 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker) 360 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker) 361 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock) 362 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock) 363 #define PF_RULES_WOWNED() rm_wowned(&pf_rules_lock) 364 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED) 365 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED) 366 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED) 367 368 extern struct mtx_padalign pf_table_stats_lock; 369 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock) 370 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock) 371 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock) 372 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_rules_lock, MA_OWNED) 373 374 extern struct sx pf_end_lock; 375 376 #define PF_MODVER 1 377 #define PFLOG_MODVER 1 378 #define PFSYNC_MODVER 1 379 380 #define PFLOG_MINVER 1 381 #define PFLOG_PREFVER PFLOG_MODVER 382 #define PFLOG_MAXVER 1 383 #define PFSYNC_MINVER 1 384 #define PFSYNC_PREFVER PFSYNC_MODVER 385 #define PFSYNC_MAXVER 1 386 387 #ifdef INET 388 #ifndef INET6 389 #define PF_INET_ONLY 390 #endif /* ! INET6 */ 391 #endif /* INET */ 392 393 #ifdef INET6 394 #ifndef INET 395 #define PF_INET6_ONLY 396 #endif /* ! INET */ 397 #endif /* INET6 */ 398 399 #ifdef INET 400 #ifdef INET6 401 #define PF_INET_INET6 402 #endif /* INET6 */ 403 #endif /* INET */ 404 405 #else 406 407 #define PF_INET_INET6 408 409 #endif /* _KERNEL */ 410 411 /* Both IPv4 and IPv6 */ 412 #ifdef PF_INET_INET6 413 414 #define PF_AEQ(a, b, c) \ 415 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 416 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 417 (a)->addr32[2] == (b)->addr32[2] && \ 418 (a)->addr32[1] == (b)->addr32[1] && \ 419 (a)->addr32[0] == (b)->addr32[0])) \ 420 421 #define PF_ANEQ(a, b, c) \ 422 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 423 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 424 (a)->addr32[1] != (b)->addr32[1] || \ 425 (a)->addr32[2] != (b)->addr32[2] || \ 426 (a)->addr32[3] != (b)->addr32[3]))) \ 427 428 #define PF_AZERO(a, c) \ 429 ((c == AF_INET && !(a)->addr32[0]) || \ 430 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 431 !(a)->addr32[2] && !(a)->addr32[3] )) \ 432 433 #define PF_MATCHA(n, a, m, b, f) \ 434 pf_match_addr(n, a, m, b, f) 435 436 #define PF_ACPY(a, b, f) \ 437 pf_addrcpy(a, b, f) 438 439 #define PF_AINC(a, f) \ 440 pf_addr_inc(a, f) 441 442 #define PF_POOLMASK(a, b, c, d, f) \ 443 pf_poolmask(a, b, c, d, f) 444 445 #else 446 447 /* Just IPv6 */ 448 449 #ifdef PF_INET6_ONLY 450 451 #define PF_AEQ(a, b, c) \ 452 ((a)->addr32[3] == (b)->addr32[3] && \ 453 (a)->addr32[2] == (b)->addr32[2] && \ 454 (a)->addr32[1] == (b)->addr32[1] && \ 455 (a)->addr32[0] == (b)->addr32[0]) \ 456 457 #define PF_ANEQ(a, b, c) \ 458 ((a)->addr32[3] != (b)->addr32[3] || \ 459 (a)->addr32[2] != (b)->addr32[2] || \ 460 (a)->addr32[1] != (b)->addr32[1] || \ 461 (a)->addr32[0] != (b)->addr32[0]) \ 462 463 #define PF_AZERO(a, c) \ 464 (!(a)->addr32[0] && \ 465 !(a)->addr32[1] && \ 466 !(a)->addr32[2] && \ 467 !(a)->addr32[3] ) \ 468 469 #define PF_MATCHA(n, a, m, b, f) \ 470 pf_match_addr(n, a, m, b, f) 471 472 #define PF_ACPY(a, b, f) \ 473 pf_addrcpy(a, b, f) 474 475 #define PF_AINC(a, f) \ 476 pf_addr_inc(a, f) 477 478 #define PF_POOLMASK(a, b, c, d, f) \ 479 pf_poolmask(a, b, c, d, f) 480 481 #else 482 483 /* Just IPv4 */ 484 #ifdef PF_INET_ONLY 485 486 #define PF_AEQ(a, b, c) \ 487 ((a)->addr32[0] == (b)->addr32[0]) 488 489 #define PF_ANEQ(a, b, c) \ 490 ((a)->addr32[0] != (b)->addr32[0]) 491 492 #define PF_AZERO(a, c) \ 493 (!(a)->addr32[0]) 494 495 #define PF_MATCHA(n, a, m, b, f) \ 496 pf_match_addr(n, a, m, b, f) 497 498 #define PF_ACPY(a, b, f) \ 499 (a)->v4.s_addr = (b)->v4.s_addr 500 501 #define PF_AINC(a, f) \ 502 do { \ 503 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 504 } while (0) 505 506 #define PF_POOLMASK(a, b, c, d, f) \ 507 do { \ 508 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 509 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 510 } while (0) 511 512 #endif /* PF_INET_ONLY */ 513 #endif /* PF_INET6_ONLY */ 514 #endif /* PF_INET_INET6 */ 515 516 /* 517 * XXX callers not FIB-aware in our version of pf yet. 518 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 519 */ 520 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 521 ( \ 522 (((aw)->type == PF_ADDR_NOROUTE && \ 523 pf_routable((x), (af), NULL, (rtid))) || \ 524 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 525 pf_routable((x), (af), (ifp), (rtid))) || \ 526 ((aw)->type == PF_ADDR_TABLE && \ 527 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 528 ((aw)->type == PF_ADDR_DYNIFTL && \ 529 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 530 ((aw)->type == PF_ADDR_RANGE && \ 531 !pf_match_addr_range(&(aw)->v.a.addr, \ 532 &(aw)->v.a.mask, (x), (af))) || \ 533 ((aw)->type == PF_ADDR_ADDRMASK && \ 534 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 535 !PF_MATCHA(0, &(aw)->v.a.addr, \ 536 &(aw)->v.a.mask, (x), (af))))) != \ 537 (neg) \ 538 ) 539 540 #define PF_ALGNMNT(off) (((off) % 2) == 0) 541 542 #ifdef _KERNEL 543 544 struct pf_kpooladdr { 545 struct pf_addr_wrap addr; 546 TAILQ_ENTRY(pf_kpooladdr) entries; 547 char ifname[IFNAMSIZ]; 548 struct pfi_kkif *kif; 549 }; 550 551 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 552 553 struct pf_kpool { 554 struct mtx mtx; 555 struct pf_kpalist list; 556 struct pf_kpooladdr *cur; 557 struct pf_poolhashkey key; 558 struct pf_addr counter; 559 struct pf_mape_portset mape; 560 int tblidx; 561 u_int16_t proxy_port[2]; 562 u_int8_t opts; 563 }; 564 565 struct pf_rule_actions { 566 uint16_t qid; 567 uint16_t pqid; 568 uint16_t dnpipe; 569 uint16_t dnrpipe; /* Reverse direction pipe */ 570 uint32_t flags; 571 }; 572 573 union pf_krule_ptr { 574 struct pf_krule *ptr; 575 u_int32_t nr; 576 }; 577 578 struct pf_krule { 579 struct pf_rule_addr src; 580 struct pf_rule_addr dst; 581 union pf_krule_ptr skip[PF_SKIP_COUNT]; 582 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 583 uint32_t ridentifier; 584 char ifname[IFNAMSIZ]; 585 char qname[PF_QNAME_SIZE]; 586 char pqname[PF_QNAME_SIZE]; 587 char tagname[PF_TAG_NAME_SIZE]; 588 char match_tagname[PF_TAG_NAME_SIZE]; 589 590 char overload_tblname[PF_TABLE_NAME_SIZE]; 591 592 TAILQ_ENTRY(pf_krule) entries; 593 struct pf_kpool rpool; 594 595 struct pf_counter_u64 evaluations; 596 struct pf_counter_u64 packets[2]; 597 struct pf_counter_u64 bytes[2]; 598 599 struct pfi_kkif *kif; 600 struct pf_kanchor *anchor; 601 struct pfr_ktable *overload_tbl; 602 603 pf_osfp_t os_fingerprint; 604 605 int rtableid; 606 u_int32_t timeout[PFTM_MAX]; 607 u_int32_t max_states; 608 u_int32_t max_src_nodes; 609 u_int32_t max_src_states; 610 u_int32_t max_src_conn; 611 struct { 612 u_int32_t limit; 613 u_int32_t seconds; 614 } max_src_conn_rate; 615 u_int16_t qid; 616 u_int16_t pqid; 617 u_int16_t dnpipe; 618 u_int16_t dnrpipe; 619 u_int32_t free_flags; 620 u_int32_t nr; 621 u_int32_t prob; 622 uid_t cuid; 623 pid_t cpid; 624 625 counter_u64_t states_cur; 626 counter_u64_t states_tot; 627 counter_u64_t src_nodes; 628 629 u_int16_t return_icmp; 630 u_int16_t return_icmp6; 631 u_int16_t max_mss; 632 u_int16_t tag; 633 u_int16_t match_tag; 634 u_int16_t scrub_flags; 635 636 struct pf_rule_uid uid; 637 struct pf_rule_gid gid; 638 639 u_int32_t rule_flag; 640 uint32_t rule_ref; 641 u_int8_t action; 642 u_int8_t direction; 643 u_int8_t log; 644 u_int8_t logif; 645 u_int8_t quick; 646 u_int8_t ifnot; 647 u_int8_t match_tag_not; 648 u_int8_t natpass; 649 650 u_int8_t keep_state; 651 sa_family_t af; 652 u_int8_t proto; 653 u_int8_t type; 654 u_int8_t code; 655 u_int8_t flags; 656 u_int8_t flagset; 657 u_int8_t min_ttl; 658 u_int8_t allow_opts; 659 u_int8_t rt; 660 u_int8_t return_ttl; 661 u_int8_t tos; 662 u_int8_t set_tos; 663 u_int8_t anchor_relative; 664 u_int8_t anchor_wildcard; 665 666 u_int8_t flush; 667 u_int8_t prio; 668 u_int8_t set_prio[2]; 669 670 struct { 671 struct pf_addr addr; 672 u_int16_t port; 673 } divert; 674 675 #ifdef PF_WANT_32_TO_64_COUNTER 676 LIST_ENTRY(pf_krule) allrulelist; 677 bool allrulelinked; 678 #endif 679 }; 680 681 struct pf_ksrc_node { 682 LIST_ENTRY(pf_ksrc_node) entry; 683 struct pf_addr addr; 684 struct pf_addr raddr; 685 union pf_krule_ptr rule; 686 struct pfi_kkif *kif; 687 counter_u64_t bytes[2]; 688 counter_u64_t packets[2]; 689 u_int32_t states; 690 u_int32_t conn; 691 struct pf_threshold conn_rate; 692 u_int32_t creation; 693 u_int32_t expire; 694 sa_family_t af; 695 u_int8_t ruletype; 696 }; 697 #endif 698 699 struct pf_state_scrub { 700 struct timeval pfss_last; /* time received last packet */ 701 u_int32_t pfss_tsecr; /* last echoed timestamp */ 702 u_int32_t pfss_tsval; /* largest timestamp */ 703 u_int32_t pfss_tsval0; /* original timestamp */ 704 u_int16_t pfss_flags; 705 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 706 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 707 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 708 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 709 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 710 u_int8_t pfss_ttl; /* stashed TTL */ 711 u_int8_t pad; 712 u_int32_t pfss_ts_mod; /* timestamp modulation */ 713 }; 714 715 struct pf_state_host { 716 struct pf_addr addr; 717 u_int16_t port; 718 u_int16_t pad; 719 }; 720 721 struct pf_state_peer { 722 struct pf_state_scrub *scrub; /* state is scrubbed */ 723 u_int32_t seqlo; /* Max sequence number sent */ 724 u_int32_t seqhi; /* Max the other end ACKd + win */ 725 u_int32_t seqdiff; /* Sequence number modulator */ 726 u_int16_t max_win; /* largest window (pre scaling) */ 727 u_int16_t mss; /* Maximum segment size option */ 728 u_int8_t state; /* active state level */ 729 u_int8_t wscale; /* window scaling factor */ 730 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 731 u_int8_t pad[1]; 732 }; 733 734 /* Keep synced with struct pf_state_key. */ 735 struct pf_state_key_cmp { 736 struct pf_addr addr[2]; 737 u_int16_t port[2]; 738 sa_family_t af; 739 u_int8_t proto; 740 u_int8_t pad[2]; 741 }; 742 743 struct pf_state_key { 744 struct pf_addr addr[2]; 745 u_int16_t port[2]; 746 sa_family_t af; 747 u_int8_t proto; 748 u_int8_t pad[2]; 749 750 LIST_ENTRY(pf_state_key) entry; 751 TAILQ_HEAD(, pf_kstate) states[2]; 752 }; 753 754 /* Keep synced with struct pf_kstate. */ 755 struct pf_state_cmp { 756 u_int64_t id; 757 u_int32_t creatorid; 758 u_int8_t direction; 759 u_int8_t pad[3]; 760 }; 761 762 #define PFSTATE_ALLOWOPTS 0x01 763 #define PFSTATE_SLOPPY 0x02 764 /* was PFSTATE_PFLOW 0x04 */ 765 #define PFSTATE_NOSYNC 0x08 766 #define PFSTATE_ACK 0x10 767 #define PFRULE_DN_IS_PIPE 0x40 768 #define PFRULE_DN_IS_QUEUE 0x80 769 #define PFSTATE_SETPRIO 0x0200 770 #define PFSTATE_SETMASK (PFSTATE_SETPRIO) 771 772 struct pf_state_scrub_export { 773 uint16_t pfss_flags; 774 uint8_t pfss_ttl; /* stashed TTL */ 775 #define PF_SCRUB_FLAG_VALID 0x01 776 uint8_t scrub_flag; 777 uint32_t pfss_ts_mod; /* timestamp modulation */ 778 }; 779 780 struct pf_state_key_export { 781 struct pf_addr addr[2]; 782 uint16_t port[2]; 783 }; 784 785 struct pf_state_peer_export { 786 struct pf_state_scrub_export scrub; /* state is scrubbed */ 787 uint32_t seqlo; /* Max sequence number sent */ 788 uint32_t seqhi; /* Max the other end ACKd + win */ 789 uint32_t seqdiff; /* Sequence number modulator */ 790 uint16_t max_win; /* largest window (pre scaling) */ 791 uint16_t mss; /* Maximum segment size option */ 792 uint8_t state; /* active state level */ 793 uint8_t wscale; /* window scaling factor */ 794 uint8_t dummy[6]; 795 }; 796 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect"); 797 798 struct pf_state_export { 799 uint64_t version; 800 #define PF_STATE_VERSION 20210706 801 uint64_t id; 802 char ifname[IFNAMSIZ]; 803 char orig_ifname[IFNAMSIZ]; 804 struct pf_state_key_export key[2]; 805 struct pf_state_peer_export src; 806 struct pf_state_peer_export dst; 807 struct pf_addr rt_addr; 808 uint32_t rule; 809 uint32_t anchor; 810 uint32_t nat_rule; 811 uint32_t creation; 812 uint32_t expire; 813 uint32_t spare0; 814 uint64_t packets[2]; 815 uint64_t bytes[2]; 816 uint32_t creatorid; 817 uint32_t spare1; 818 sa_family_t af; 819 uint8_t proto; 820 uint8_t direction; 821 uint8_t log; 822 uint8_t state_flags; 823 uint8_t timeout; 824 uint8_t sync_flags; 825 uint8_t updates; 826 827 uint8_t spare[112]; 828 }; 829 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect"); 830 831 #ifdef _KERNEL 832 struct pf_kstate { 833 /* 834 * Area shared with pf_state_cmp 835 */ 836 u_int64_t id; 837 u_int32_t creatorid; 838 u_int8_t direction; 839 u_int8_t pad[3]; 840 /* 841 * end of the area 842 */ 843 844 u_int8_t state_flags; 845 u_int8_t timeout; 846 u_int8_t sync_state; /* PFSYNC_S_x */ 847 u_int8_t sync_updates; /* XXX */ 848 u_int refs; 849 struct mtx *lock; 850 TAILQ_ENTRY(pf_kstate) sync_list; 851 TAILQ_ENTRY(pf_kstate) key_list[2]; 852 LIST_ENTRY(pf_kstate) entry; 853 struct pf_state_peer src; 854 struct pf_state_peer dst; 855 union pf_krule_ptr rule; 856 union pf_krule_ptr anchor; 857 union pf_krule_ptr nat_rule; 858 struct pf_addr rt_addr; 859 struct pf_state_key *key[2]; /* addresses stack and wire */ 860 struct pfi_kkif *kif; 861 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 862 struct pfi_kkif *rt_kif; 863 struct pf_ksrc_node *src_node; 864 struct pf_ksrc_node *nat_src_node; 865 u_int64_t packets[2]; 866 u_int64_t bytes[2]; 867 u_int32_t creation; 868 u_int32_t expire; 869 u_int32_t pfsync_time; 870 u_int16_t qid; 871 u_int16_t pqid; 872 u_int16_t dnpipe; 873 u_int16_t dnrpipe; 874 u_int16_t tag; 875 u_int8_t log; 876 }; 877 878 /* 879 * Size <= fits 13 objects per page on LP64. Try to not grow the struct beyond that. 880 */ 881 _Static_assert(sizeof(struct pf_kstate) <= 312, "pf_kstate size crosses 312 bytes"); 882 #endif 883 884 /* 885 * Unified state structures for pulling states out of the kernel 886 * used by pfsync(4) and the pf(4) ioctl. 887 */ 888 struct pfsync_state_scrub { 889 u_int16_t pfss_flags; 890 u_int8_t pfss_ttl; /* stashed TTL */ 891 #define PFSYNC_SCRUB_FLAG_VALID 0x01 892 u_int8_t scrub_flag; 893 u_int32_t pfss_ts_mod; /* timestamp modulation */ 894 } __packed; 895 896 struct pfsync_state_peer { 897 struct pfsync_state_scrub scrub; /* state is scrubbed */ 898 u_int32_t seqlo; /* Max sequence number sent */ 899 u_int32_t seqhi; /* Max the other end ACKd + win */ 900 u_int32_t seqdiff; /* Sequence number modulator */ 901 u_int16_t max_win; /* largest window (pre scaling) */ 902 u_int16_t mss; /* Maximum segment size option */ 903 u_int8_t state; /* active state level */ 904 u_int8_t wscale; /* window scaling factor */ 905 u_int8_t pad[6]; 906 } __packed; 907 908 struct pfsync_state_key { 909 struct pf_addr addr[2]; 910 u_int16_t port[2]; 911 }; 912 913 struct pfsync_state { 914 u_int64_t id; 915 char ifname[IFNAMSIZ]; 916 struct pfsync_state_key key[2]; 917 struct pfsync_state_peer src; 918 struct pfsync_state_peer dst; 919 struct pf_addr rt_addr; 920 u_int32_t rule; 921 u_int32_t anchor; 922 u_int32_t nat_rule; 923 u_int32_t creation; 924 u_int32_t expire; 925 u_int32_t packets[2][2]; 926 u_int32_t bytes[2][2]; 927 u_int32_t creatorid; 928 sa_family_t af; 929 u_int8_t proto; 930 u_int8_t direction; 931 u_int8_t __spare[2]; 932 u_int8_t log; 933 u_int8_t state_flags; 934 u_int8_t timeout; 935 u_int8_t sync_flags; 936 u_int8_t updates; 937 } __packed; 938 939 #ifdef _KERNEL 940 /* pfsync */ 941 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 942 typedef void pfsync_insert_state_t(struct pf_kstate *); 943 typedef void pfsync_update_state_t(struct pf_kstate *); 944 typedef void pfsync_delete_state_t(struct pf_kstate *); 945 typedef void pfsync_clear_states_t(u_int32_t, const char *); 946 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *); 947 typedef void pfsync_detach_ifnet_t(struct ifnet *); 948 949 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 950 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 951 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 952 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 953 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 954 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 955 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 956 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 957 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 958 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 959 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 960 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 961 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 962 963 void pfsync_state_export(struct pfsync_state *, 964 struct pf_kstate *); 965 void pf_state_export(struct pf_state_export *, 966 struct pf_kstate *); 967 968 /* pflog */ 969 struct pf_kruleset; 970 struct pf_pdesc; 971 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t, 972 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *, 973 struct pf_kruleset *, struct pf_pdesc *, int); 974 extern pflog_packet_t *pflog_packet_ptr; 975 976 #endif /* _KERNEL */ 977 978 #define PFSYNC_FLAG_SRCNODE 0x04 979 #define PFSYNC_FLAG_NATSRCNODE 0x08 980 981 /* for copies to/from network byte order */ 982 /* ioctl interface also uses network byte order */ 983 #define pf_state_peer_hton(s,d) do { \ 984 (d)->seqlo = htonl((s)->seqlo); \ 985 (d)->seqhi = htonl((s)->seqhi); \ 986 (d)->seqdiff = htonl((s)->seqdiff); \ 987 (d)->max_win = htons((s)->max_win); \ 988 (d)->mss = htons((s)->mss); \ 989 (d)->state = (s)->state; \ 990 (d)->wscale = (s)->wscale; \ 991 if ((s)->scrub) { \ 992 (d)->scrub.pfss_flags = \ 993 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 994 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 995 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 996 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 997 } \ 998 } while (0) 999 1000 #define pf_state_peer_ntoh(s,d) do { \ 1001 (d)->seqlo = ntohl((s)->seqlo); \ 1002 (d)->seqhi = ntohl((s)->seqhi); \ 1003 (d)->seqdiff = ntohl((s)->seqdiff); \ 1004 (d)->max_win = ntohs((s)->max_win); \ 1005 (d)->mss = ntohs((s)->mss); \ 1006 (d)->state = (s)->state; \ 1007 (d)->wscale = (s)->wscale; \ 1008 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1009 (d)->scrub != NULL) { \ 1010 (d)->scrub->pfss_flags = \ 1011 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1012 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1013 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1014 } \ 1015 } while (0) 1016 1017 #define pf_state_counter_hton(s,d) do { \ 1018 d[0] = htonl((s>>32)&0xffffffff); \ 1019 d[1] = htonl(s&0xffffffff); \ 1020 } while (0) 1021 1022 #define pf_state_counter_from_pfsync(s) \ 1023 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1024 1025 #define pf_state_counter_ntoh(s,d) do { \ 1026 d = ntohl(s[0]); \ 1027 d = d<<32; \ 1028 d += ntohl(s[1]); \ 1029 } while (0) 1030 1031 TAILQ_HEAD(pf_krulequeue, pf_krule); 1032 1033 struct pf_kanchor; 1034 1035 struct pf_kruleset { 1036 struct { 1037 struct pf_krulequeue queues[2]; 1038 struct { 1039 struct pf_krulequeue *ptr; 1040 struct pf_krule **ptr_array; 1041 u_int32_t rcount; 1042 u_int32_t ticket; 1043 int open; 1044 } active, inactive; 1045 } rules[PF_RULESET_MAX]; 1046 struct pf_kanchor *anchor; 1047 u_int32_t tticket; 1048 int tables; 1049 int topen; 1050 }; 1051 1052 RB_HEAD(pf_kanchor_global, pf_kanchor); 1053 RB_HEAD(pf_kanchor_node, pf_kanchor); 1054 struct pf_kanchor { 1055 RB_ENTRY(pf_kanchor) entry_global; 1056 RB_ENTRY(pf_kanchor) entry_node; 1057 struct pf_kanchor *parent; 1058 struct pf_kanchor_node children; 1059 char name[PF_ANCHOR_NAME_SIZE]; 1060 char path[MAXPATHLEN]; 1061 struct pf_kruleset ruleset; 1062 int refcnt; /* anchor rules */ 1063 }; 1064 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 1065 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 1066 1067 #define PF_RESERVED_ANCHOR "_pf" 1068 1069 #define PFR_TFLAG_PERSIST 0x00000001 1070 #define PFR_TFLAG_CONST 0x00000002 1071 #define PFR_TFLAG_ACTIVE 0x00000004 1072 #define PFR_TFLAG_INACTIVE 0x00000008 1073 #define PFR_TFLAG_REFERENCED 0x00000010 1074 #define PFR_TFLAG_REFDANCHOR 0x00000020 1075 #define PFR_TFLAG_COUNTERS 0x00000040 1076 /* Adjust masks below when adding flags. */ 1077 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 1078 PFR_TFLAG_CONST | \ 1079 PFR_TFLAG_COUNTERS) 1080 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 1081 PFR_TFLAG_INACTIVE | \ 1082 PFR_TFLAG_REFERENCED | \ 1083 PFR_TFLAG_REFDANCHOR) 1084 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 1085 PFR_TFLAG_CONST | \ 1086 PFR_TFLAG_ACTIVE | \ 1087 PFR_TFLAG_INACTIVE | \ 1088 PFR_TFLAG_REFERENCED | \ 1089 PFR_TFLAG_REFDANCHOR | \ 1090 PFR_TFLAG_COUNTERS) 1091 1092 struct pf_kanchor_stackframe; 1093 1094 struct pfr_table { 1095 char pfrt_anchor[MAXPATHLEN]; 1096 char pfrt_name[PF_TABLE_NAME_SIZE]; 1097 u_int32_t pfrt_flags; 1098 u_int8_t pfrt_fback; 1099 }; 1100 1101 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1102 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1103 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1104 1105 struct pfr_addr { 1106 union { 1107 struct in_addr _pfra_ip4addr; 1108 struct in6_addr _pfra_ip6addr; 1109 } pfra_u; 1110 u_int8_t pfra_af; 1111 u_int8_t pfra_net; 1112 u_int8_t pfra_not; 1113 u_int8_t pfra_fback; 1114 }; 1115 #define pfra_ip4addr pfra_u._pfra_ip4addr 1116 #define pfra_ip6addr pfra_u._pfra_ip6addr 1117 1118 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1119 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1120 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 1121 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 1122 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1123 1124 struct pfr_astats { 1125 struct pfr_addr pfras_a; 1126 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1127 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1128 long pfras_tzero; 1129 }; 1130 1131 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1132 1133 struct pfr_tstats { 1134 struct pfr_table pfrts_t; 1135 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1136 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1137 u_int64_t pfrts_match; 1138 u_int64_t pfrts_nomatch; 1139 long pfrts_tzero; 1140 int pfrts_cnt; 1141 int pfrts_refcnt[PFR_REFCNT_MAX]; 1142 }; 1143 1144 #ifdef _KERNEL 1145 1146 struct pfr_kstate_counter { 1147 counter_u64_t pkc_pcpu; 1148 u_int64_t pkc_zero; 1149 }; 1150 1151 static inline int 1152 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags) 1153 { 1154 1155 pfrc->pkc_zero = 0; 1156 pfrc->pkc_pcpu = counter_u64_alloc(flags); 1157 if (pfrc->pkc_pcpu == NULL) 1158 return (ENOMEM); 1159 return (0); 1160 } 1161 1162 static inline void 1163 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc) 1164 { 1165 1166 counter_u64_free(pfrc->pkc_pcpu); 1167 } 1168 1169 static inline u_int64_t 1170 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc) 1171 { 1172 u_int64_t c; 1173 1174 c = counter_u64_fetch(pfrc->pkc_pcpu); 1175 c -= pfrc->pkc_zero; 1176 return (c); 1177 } 1178 1179 static inline void 1180 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc) 1181 { 1182 u_int64_t c; 1183 1184 c = counter_u64_fetch(pfrc->pkc_pcpu); 1185 pfrc->pkc_zero = c; 1186 } 1187 1188 static inline void 1189 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n) 1190 { 1191 1192 counter_u64_add(pfrc->pkc_pcpu, n); 1193 } 1194 1195 struct pfr_ktstats { 1196 struct pfr_table pfrts_t; 1197 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1198 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1199 struct pfr_kstate_counter pfrkts_match; 1200 struct pfr_kstate_counter pfrkts_nomatch; 1201 long pfrkts_tzero; 1202 int pfrkts_cnt; 1203 int pfrkts_refcnt[PFR_REFCNT_MAX]; 1204 }; 1205 1206 #endif /* _KERNEL */ 1207 1208 #define pfrts_name pfrts_t.pfrt_name 1209 #define pfrts_flags pfrts_t.pfrt_flags 1210 1211 #ifndef _SOCKADDR_UNION_DEFINED 1212 #define _SOCKADDR_UNION_DEFINED 1213 union sockaddr_union { 1214 struct sockaddr sa; 1215 struct sockaddr_in sin; 1216 struct sockaddr_in6 sin6; 1217 }; 1218 #endif /* _SOCKADDR_UNION_DEFINED */ 1219 1220 struct pfr_kcounters { 1221 counter_u64_t pfrkc_counters; 1222 long pfrkc_tzero; 1223 }; 1224 #define pfr_kentry_counter(kc, dir, op, t) \ 1225 ((kc)->pfrkc_counters + \ 1226 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 1227 1228 #ifdef _KERNEL 1229 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1230 struct pfr_kentry { 1231 struct radix_node pfrke_node[2]; 1232 union sockaddr_union pfrke_sa; 1233 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1234 struct pfr_kcounters pfrke_counters; 1235 u_int8_t pfrke_af; 1236 u_int8_t pfrke_net; 1237 u_int8_t pfrke_not; 1238 u_int8_t pfrke_mark; 1239 }; 1240 1241 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1242 RB_HEAD(pfr_ktablehead, pfr_ktable); 1243 struct pfr_ktable { 1244 struct pfr_ktstats pfrkt_kts; 1245 RB_ENTRY(pfr_ktable) pfrkt_tree; 1246 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1247 struct radix_node_head *pfrkt_ip4; 1248 struct radix_node_head *pfrkt_ip6; 1249 struct pfr_ktable *pfrkt_shadow; 1250 struct pfr_ktable *pfrkt_root; 1251 struct pf_kruleset *pfrkt_rs; 1252 long pfrkt_larg; 1253 int pfrkt_nflags; 1254 }; 1255 #define pfrkt_t pfrkt_kts.pfrts_t 1256 #define pfrkt_name pfrkt_t.pfrt_name 1257 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1258 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1259 #define pfrkt_flags pfrkt_t.pfrt_flags 1260 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 1261 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 1262 #define pfrkt_packets pfrkt_kts.pfrkts_packets 1263 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 1264 #define pfrkt_match pfrkt_kts.pfrkts_match 1265 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 1266 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 1267 #endif 1268 1269 #ifdef _KERNEL 1270 struct pfi_kkif { 1271 char pfik_name[IFNAMSIZ]; 1272 union { 1273 RB_ENTRY(pfi_kkif) _pfik_tree; 1274 LIST_ENTRY(pfi_kkif) _pfik_list; 1275 } _pfik_glue; 1276 #define pfik_tree _pfik_glue._pfik_tree 1277 #define pfik_list _pfik_glue._pfik_list 1278 struct pf_counter_u64 pfik_packets[2][2][2]; 1279 struct pf_counter_u64 pfik_bytes[2][2][2]; 1280 u_int32_t pfik_tzero; 1281 u_int pfik_flags; 1282 struct ifnet *pfik_ifp; 1283 struct ifg_group *pfik_group; 1284 u_int pfik_rulerefs; 1285 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1286 #ifdef PF_WANT_32_TO_64_COUNTER 1287 LIST_ENTRY(pfi_kkif) pfik_allkiflist; 1288 #endif 1289 }; 1290 #endif 1291 1292 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 1293 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1294 1295 #ifdef _KERNEL 1296 struct pf_pdesc { 1297 struct { 1298 int done; 1299 uid_t uid; 1300 gid_t gid; 1301 } lookup; 1302 u_int64_t tot_len; /* Make Mickey money */ 1303 union pf_headers { 1304 struct tcphdr tcp; 1305 struct udphdr udp; 1306 struct icmp icmp; 1307 #ifdef INET6 1308 struct icmp6_hdr icmp6; 1309 #endif /* INET6 */ 1310 char any[0]; 1311 } hdr; 1312 1313 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */ 1314 struct pf_addr *src; /* src address */ 1315 struct pf_addr *dst; /* dst address */ 1316 u_int16_t *sport; 1317 u_int16_t *dport; 1318 struct pf_mtag *pf_mtag; 1319 struct pf_rule_actions act; 1320 1321 u_int32_t p_len; /* total length of payload */ 1322 1323 u_int16_t *ip_sum; 1324 u_int16_t *proto_sum; 1325 u_int16_t flags; /* Let SCRUB trigger behavior in 1326 * state code. Easier than tags */ 1327 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1328 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1329 sa_family_t af; 1330 u_int8_t proto; 1331 u_int8_t tos; 1332 u_int8_t dir; /* direction */ 1333 u_int8_t sidx; /* key index for source */ 1334 u_int8_t didx; /* key index for destination */ 1335 }; 1336 #endif 1337 1338 /* flags for RDR options */ 1339 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1340 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1341 1342 /* UDP state enumeration */ 1343 #define PFUDPS_NO_TRAFFIC 0 1344 #define PFUDPS_SINGLE 1 1345 #define PFUDPS_MULTIPLE 2 1346 1347 #define PFUDPS_NSTATES 3 /* number of state levels */ 1348 1349 #define PFUDPS_NAMES { \ 1350 "NO_TRAFFIC", \ 1351 "SINGLE", \ 1352 "MULTIPLE", \ 1353 NULL \ 1354 } 1355 1356 /* Other protocol state enumeration */ 1357 #define PFOTHERS_NO_TRAFFIC 0 1358 #define PFOTHERS_SINGLE 1 1359 #define PFOTHERS_MULTIPLE 2 1360 1361 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1362 1363 #define PFOTHERS_NAMES { \ 1364 "NO_TRAFFIC", \ 1365 "SINGLE", \ 1366 "MULTIPLE", \ 1367 NULL \ 1368 } 1369 1370 #define ACTION_SET(a, x) \ 1371 do { \ 1372 if ((a) != NULL) \ 1373 *(a) = (x); \ 1374 } while (0) 1375 1376 #define REASON_SET(a, x) \ 1377 do { \ 1378 if ((a) != NULL) \ 1379 *(a) = (x); \ 1380 if (x < PFRES_MAX) \ 1381 counter_u64_add(V_pf_status.counters[x], 1); \ 1382 } while (0) 1383 1384 enum pf_syncookies_mode { 1385 PF_SYNCOOKIES_NEVER = 0, 1386 PF_SYNCOOKIES_ALWAYS = 1, 1387 PF_SYNCOOKIES_ADAPTIVE = 2, 1388 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE 1389 }; 1390 1391 #define PF_SYNCOOKIES_HIWATPCT 25 1392 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2) 1393 1394 #ifdef _KERNEL 1395 struct pf_kstatus { 1396 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1397 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */ 1398 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */ 1399 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1400 uint32_t states; 1401 uint32_t src_nodes; 1402 uint32_t running; 1403 uint32_t since; 1404 uint32_t debug; 1405 uint32_t hostid; 1406 char ifname[IFNAMSIZ]; 1407 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1408 bool keep_counters; 1409 enum pf_syncookies_mode syncookies_mode; 1410 bool syncookies_active; 1411 uint64_t syncookies_inflight[2]; 1412 uint32_t states_halfopen; 1413 }; 1414 #endif 1415 1416 struct pf_divert { 1417 union { 1418 struct in_addr ipv4; 1419 struct in6_addr ipv6; 1420 } addr; 1421 u_int16_t port; 1422 }; 1423 1424 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1425 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1426 1427 /* 1428 * Limit the length of the fragment queue traversal. Remember 1429 * search entry points based on the fragment offset. 1430 */ 1431 #define PF_FRAG_ENTRY_POINTS 16 1432 1433 /* 1434 * The number of entries in the fragment queue must be limited 1435 * to avoid DoS by linear seaching. Instead of a global limit, 1436 * use a limit per entry point. For large packets these sum up. 1437 */ 1438 #define PF_FRAG_ENTRY_LIMIT 64 1439 1440 /* 1441 * ioctl parameter structures 1442 */ 1443 1444 struct pfioc_pooladdr { 1445 u_int32_t action; 1446 u_int32_t ticket; 1447 u_int32_t nr; 1448 u_int32_t r_num; 1449 u_int8_t r_action; 1450 u_int8_t r_last; 1451 u_int8_t af; 1452 char anchor[MAXPATHLEN]; 1453 struct pf_pooladdr addr; 1454 }; 1455 1456 struct pfioc_rule { 1457 u_int32_t action; 1458 u_int32_t ticket; 1459 u_int32_t pool_ticket; 1460 u_int32_t nr; 1461 char anchor[MAXPATHLEN]; 1462 char anchor_call[MAXPATHLEN]; 1463 struct pf_rule rule; 1464 }; 1465 1466 struct pfioc_natlook { 1467 struct pf_addr saddr; 1468 struct pf_addr daddr; 1469 struct pf_addr rsaddr; 1470 struct pf_addr rdaddr; 1471 u_int16_t sport; 1472 u_int16_t dport; 1473 u_int16_t rsport; 1474 u_int16_t rdport; 1475 sa_family_t af; 1476 u_int8_t proto; 1477 u_int8_t direction; 1478 }; 1479 1480 struct pfioc_state { 1481 struct pfsync_state state; 1482 }; 1483 1484 struct pfioc_src_node_kill { 1485 sa_family_t psnk_af; 1486 struct pf_rule_addr psnk_src; 1487 struct pf_rule_addr psnk_dst; 1488 u_int psnk_killed; 1489 }; 1490 1491 #ifdef _KERNEL 1492 struct pf_kstate_kill { 1493 struct pf_state_cmp psk_pfcmp; 1494 sa_family_t psk_af; 1495 int psk_proto; 1496 struct pf_rule_addr psk_src; 1497 struct pf_rule_addr psk_dst; 1498 struct pf_rule_addr psk_rt_addr; 1499 char psk_ifname[IFNAMSIZ]; 1500 char psk_label[PF_RULE_LABEL_SIZE]; 1501 u_int psk_killed; 1502 bool psk_kill_match; 1503 }; 1504 #endif 1505 1506 struct pfioc_state_kill { 1507 struct pf_state_cmp psk_pfcmp; 1508 sa_family_t psk_af; 1509 int psk_proto; 1510 struct pf_rule_addr psk_src; 1511 struct pf_rule_addr psk_dst; 1512 char psk_ifname[IFNAMSIZ]; 1513 char psk_label[PF_RULE_LABEL_SIZE]; 1514 u_int psk_killed; 1515 }; 1516 1517 struct pfioc_states { 1518 int ps_len; 1519 union { 1520 caddr_t psu_buf; 1521 struct pfsync_state *psu_states; 1522 } ps_u; 1523 #define ps_buf ps_u.psu_buf 1524 #define ps_states ps_u.psu_states 1525 }; 1526 1527 struct pfioc_states_v2 { 1528 int ps_len; 1529 uint64_t ps_req_version; 1530 union { 1531 caddr_t psu_buf; 1532 struct pf_state_export *psu_states; 1533 } ps_u; 1534 #define ps_buf ps_u.psu_buf 1535 #define ps_states ps_u.psu_states 1536 }; 1537 1538 struct pfioc_src_nodes { 1539 int psn_len; 1540 union { 1541 caddr_t psu_buf; 1542 struct pf_src_node *psu_src_nodes; 1543 } psn_u; 1544 #define psn_buf psn_u.psu_buf 1545 #define psn_src_nodes psn_u.psu_src_nodes 1546 }; 1547 1548 struct pfioc_if { 1549 char ifname[IFNAMSIZ]; 1550 }; 1551 1552 struct pfioc_tm { 1553 int timeout; 1554 int seconds; 1555 }; 1556 1557 struct pfioc_limit { 1558 int index; 1559 unsigned limit; 1560 }; 1561 1562 struct pfioc_altq_v0 { 1563 u_int32_t action; 1564 u_int32_t ticket; 1565 u_int32_t nr; 1566 struct pf_altq_v0 altq; 1567 }; 1568 1569 struct pfioc_altq_v1 { 1570 u_int32_t action; 1571 u_int32_t ticket; 1572 u_int32_t nr; 1573 /* 1574 * Placed here so code that only uses the above parameters can be 1575 * written entirely in terms of the v0 or v1 type. 1576 */ 1577 u_int32_t version; 1578 struct pf_altq_v1 altq; 1579 }; 1580 1581 /* 1582 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1583 * the latest version of struct pf_altq_vX as it has that struct as a 1584 * member. 1585 */ 1586 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1587 1588 struct pfioc_qstats_v0 { 1589 u_int32_t ticket; 1590 u_int32_t nr; 1591 void *buf; 1592 int nbytes; 1593 u_int8_t scheduler; 1594 }; 1595 1596 struct pfioc_qstats_v1 { 1597 u_int32_t ticket; 1598 u_int32_t nr; 1599 void *buf; 1600 int nbytes; 1601 u_int8_t scheduler; 1602 /* 1603 * Placed here so code that only uses the above parameters can be 1604 * written entirely in terms of the v0 or v1 type. 1605 */ 1606 u_int32_t version; /* Requested version of stats struct */ 1607 }; 1608 1609 /* Latest version of struct pfioc_qstats_vX */ 1610 #define PFIOC_QSTATS_VERSION 1 1611 1612 struct pfioc_ruleset { 1613 u_int32_t nr; 1614 char path[MAXPATHLEN]; 1615 char name[PF_ANCHOR_NAME_SIZE]; 1616 }; 1617 1618 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1619 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1620 struct pfioc_trans { 1621 int size; /* number of elements */ 1622 int esize; /* size of each element in bytes */ 1623 struct pfioc_trans_e { 1624 int rs_num; 1625 char anchor[MAXPATHLEN]; 1626 u_int32_t ticket; 1627 } *array; 1628 }; 1629 1630 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1631 #define PFR_FLAG_DUMMY 0x00000002 1632 #define PFR_FLAG_FEEDBACK 0x00000004 1633 #define PFR_FLAG_CLSTATS 0x00000008 1634 #define PFR_FLAG_ADDRSTOO 0x00000010 1635 #define PFR_FLAG_REPLACE 0x00000020 1636 #define PFR_FLAG_ALLRSETS 0x00000040 1637 #define PFR_FLAG_ALLMASK 0x0000007F 1638 #ifdef _KERNEL 1639 #define PFR_FLAG_USERIOCTL 0x10000000 1640 #endif 1641 1642 struct pfioc_table { 1643 struct pfr_table pfrio_table; 1644 void *pfrio_buffer; 1645 int pfrio_esize; 1646 int pfrio_size; 1647 int pfrio_size2; 1648 int pfrio_nadd; 1649 int pfrio_ndel; 1650 int pfrio_nchange; 1651 int pfrio_flags; 1652 u_int32_t pfrio_ticket; 1653 }; 1654 #define pfrio_exists pfrio_nadd 1655 #define pfrio_nzero pfrio_nadd 1656 #define pfrio_nmatch pfrio_nadd 1657 #define pfrio_naddr pfrio_size2 1658 #define pfrio_setflag pfrio_size2 1659 #define pfrio_clrflag pfrio_nadd 1660 1661 struct pfioc_iface { 1662 char pfiio_name[IFNAMSIZ]; 1663 void *pfiio_buffer; 1664 int pfiio_esize; 1665 int pfiio_size; 1666 int pfiio_nzero; 1667 int pfiio_flags; 1668 }; 1669 1670 /* 1671 * ioctl operations 1672 */ 1673 1674 #define DIOCSTART _IO ('D', 1) 1675 #define DIOCSTOP _IO ('D', 2) 1676 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1677 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 1678 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1679 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1680 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 1681 /* XXX cut 8 - 17 */ 1682 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1683 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 1684 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1685 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 1686 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1687 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1688 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv) 1689 #define DIOCCLRSTATUS _IO ('D', 22) 1690 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1691 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1692 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1693 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1694 /* XXX cut 26 - 28 */ 1695 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1696 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1697 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1698 #define DIOCCLRRULECTRS _IO ('D', 38) 1699 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1700 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1701 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1702 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 1703 #define DIOCSTARTALTQ _IO ('D', 42) 1704 #define DIOCSTOPALTQ _IO ('D', 43) 1705 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 1706 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 1707 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 1708 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 1709 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 1710 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 1711 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 1712 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 1713 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 1714 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 1715 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1716 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1717 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1718 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1719 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1720 /* XXX cut 55 - 57 */ 1721 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1722 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1723 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1724 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1725 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1726 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1727 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1728 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1729 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1730 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1731 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1732 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1733 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1734 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1735 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1736 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1737 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1738 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1739 #define DIOCOSFPFLUSH _IO('D', 78) 1740 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1741 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1742 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1743 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1744 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1745 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1746 #define DIOCCLRSRCNODES _IO('D', 85) 1747 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1748 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1749 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1750 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1751 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1752 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 1753 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 1754 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2) 1755 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv) 1756 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv) 1757 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv) 1758 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv) 1759 1760 struct pf_ifspeed_v0 { 1761 char ifname[IFNAMSIZ]; 1762 u_int32_t baudrate; 1763 }; 1764 1765 struct pf_ifspeed_v1 { 1766 char ifname[IFNAMSIZ]; 1767 u_int32_t baudrate32; 1768 /* layout identical to struct pf_ifspeed_v0 up to this point */ 1769 u_int64_t baudrate; 1770 }; 1771 1772 /* Latest version of struct pf_ifspeed_vX */ 1773 #define PF_IFSPEED_VERSION 1 1774 1775 /* 1776 * Compatibility and convenience macros 1777 */ 1778 #ifndef _KERNEL 1779 #ifdef PFIOC_USE_LATEST 1780 /* 1781 * Maintaining in-tree consumers of the ioctl interface is easier when that 1782 * code can be written in terms old names that refer to the latest interface 1783 * version as that reduces the required changes in the consumers to those 1784 * that are functionally necessary to accommodate a new interface version. 1785 */ 1786 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 1787 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 1788 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 1789 1790 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 1791 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 1792 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 1793 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 1794 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 1795 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 1796 #else 1797 /* 1798 * When building out-of-tree code that is written for the old interface, 1799 * such as may exist in ports for example, resolve the old struct tags and 1800 * ioctl command names to the v0 versions. 1801 */ 1802 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 1803 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 1804 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 1805 1806 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 1807 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 1808 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 1809 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 1810 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 1811 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 1812 #endif /* PFIOC_USE_LATEST */ 1813 #endif /* _KERNEL */ 1814 1815 #ifdef _KERNEL 1816 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 1817 struct pf_srchash { 1818 struct pf_ksrc_node_list nodes; 1819 struct mtx lock; 1820 }; 1821 1822 struct pf_keyhash { 1823 LIST_HEAD(, pf_state_key) keys; 1824 struct mtx lock; 1825 }; 1826 1827 struct pf_idhash { 1828 LIST_HEAD(, pf_kstate) states; 1829 struct mtx lock; 1830 }; 1831 1832 extern u_long pf_ioctl_maxcount; 1833 extern u_long pf_hashmask; 1834 extern u_long pf_srchashmask; 1835 #define PF_HASHSIZ (131072) 1836 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 1837 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1838 VNET_DECLARE(struct pf_idhash *, pf_idhash); 1839 #define V_pf_keyhash VNET(pf_keyhash) 1840 #define V_pf_idhash VNET(pf_idhash) 1841 VNET_DECLARE(struct pf_srchash *, pf_srchash); 1842 #define V_pf_srchash VNET(pf_srchash) 1843 1844 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1)) 1845 1846 VNET_DECLARE(void *, pf_swi_cookie); 1847 #define V_pf_swi_cookie VNET(pf_swi_cookie) 1848 VNET_DECLARE(struct intr_event *, pf_swi_ie); 1849 #define V_pf_swi_ie VNET(pf_swi_ie) 1850 1851 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1852 #define V_pf_stateid VNET(pf_stateid) 1853 1854 TAILQ_HEAD(pf_altqqueue, pf_altq); 1855 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 1856 #define V_pf_altqs VNET(pf_altqs) 1857 VNET_DECLARE(struct pf_kpalist, pf_pabuf); 1858 #define V_pf_pabuf VNET(pf_pabuf) 1859 1860 VNET_DECLARE(u_int32_t, ticket_altqs_active); 1861 #define V_ticket_altqs_active VNET(ticket_altqs_active) 1862 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1863 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1864 VNET_DECLARE(int, altqs_inactive_open); 1865 #define V_altqs_inactive_open VNET(altqs_inactive_open) 1866 VNET_DECLARE(u_int32_t, ticket_pabuf); 1867 #define V_ticket_pabuf VNET(ticket_pabuf) 1868 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1869 #define V_pf_altqs_active VNET(pf_altqs_active) 1870 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 1871 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 1872 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1873 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1874 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 1875 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 1876 1877 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 1878 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1879 1880 #ifdef PF_WANT_32_TO_64_COUNTER 1881 LIST_HEAD(allkiflist_head, pfi_kkif); 1882 VNET_DECLARE(struct allkiflist_head, pf_allkiflist); 1883 #define V_pf_allkiflist VNET(pf_allkiflist) 1884 VNET_DECLARE(size_t, pf_allkifcount); 1885 #define V_pf_allkifcount VNET(pf_allkifcount) 1886 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker); 1887 #define V_pf_kifmarker VNET(pf_kifmarker) 1888 1889 LIST_HEAD(allrulelist_head, pf_krule); 1890 VNET_DECLARE(struct allrulelist_head, pf_allrulelist); 1891 #define V_pf_allrulelist VNET(pf_allrulelist) 1892 VNET_DECLARE(size_t, pf_allrulecount); 1893 #define V_pf_allrulecount VNET(pf_allrulecount) 1894 VNET_DECLARE(struct pf_krule *, pf_rulemarker); 1895 #define V_pf_rulemarker VNET(pf_rulemarker) 1896 #endif 1897 1898 void pf_initialize(void); 1899 void pf_mtag_initialize(void); 1900 void pf_mtag_cleanup(void); 1901 void pf_cleanup(void); 1902 1903 struct pf_mtag *pf_get_mtag(struct mbuf *); 1904 1905 extern void pf_calc_skip_steps(struct pf_krulequeue *); 1906 #ifdef ALTQ 1907 extern void pf_altq_ifnet_event(struct ifnet *, int); 1908 #endif 1909 VNET_DECLARE(uma_zone_t, pf_state_z); 1910 #define V_pf_state_z VNET(pf_state_z) 1911 VNET_DECLARE(uma_zone_t, pf_state_key_z); 1912 #define V_pf_state_key_z VNET(pf_state_key_z) 1913 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1914 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1915 1916 extern void pf_purge_thread(void *); 1917 extern void pf_unload_vnet_purge(void); 1918 extern void pf_intr(void *); 1919 extern void pf_purge_expired_src_nodes(void); 1920 1921 extern int pf_unlink_state(struct pf_kstate *); 1922 extern int pf_state_insert(struct pfi_kkif *, 1923 struct pfi_kkif *, 1924 struct pf_state_key *, 1925 struct pf_state_key *, 1926 struct pf_kstate *); 1927 extern struct pf_kstate *pf_alloc_state(int); 1928 extern void pf_free_state(struct pf_kstate *); 1929 1930 static __inline void 1931 pf_ref_state(struct pf_kstate *s) 1932 { 1933 1934 refcount_acquire(&s->refs); 1935 } 1936 1937 static __inline int 1938 pf_release_state(struct pf_kstate *s) 1939 { 1940 1941 if (refcount_release(&s->refs)) { 1942 pf_free_state(s); 1943 return (1); 1944 } else 1945 return (0); 1946 } 1947 1948 static __inline int 1949 pf_release_staten(struct pf_kstate *s, u_int n) 1950 { 1951 1952 if (refcount_releasen(&s->refs, n)) { 1953 pf_free_state(s); 1954 return (1); 1955 } else 1956 return (0); 1957 } 1958 1959 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t); 1960 extern struct pf_kstate *pf_find_state_all(struct pf_state_key_cmp *, 1961 u_int, int *); 1962 extern bool pf_find_state_all_exists(struct pf_state_key_cmp *, 1963 u_int); 1964 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 1965 struct pf_krule *, sa_family_t, int); 1966 extern void pf_unlink_src_node(struct pf_ksrc_node *); 1967 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 1968 extern void pf_print_state(struct pf_kstate *); 1969 extern void pf_print_flags(u_int8_t); 1970 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1971 u_int8_t); 1972 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 1973 u_int16_t, u_int16_t, u_int8_t); 1974 1975 VNET_DECLARE(struct ifnet *, sync_ifp); 1976 #define V_sync_ifp VNET(sync_ifp); 1977 VNET_DECLARE(struct pf_krule, pf_default_rule); 1978 #define V_pf_default_rule VNET(pf_default_rule) 1979 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1980 u_int8_t); 1981 void pf_free_rule(struct pf_krule *); 1982 1983 #ifdef INET 1984 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1985 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *, 1986 struct pf_pdesc *); 1987 #endif /* INET */ 1988 1989 #ifdef INET6 1990 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1991 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *, 1992 struct pf_pdesc *); 1993 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1994 struct pf_addr *, struct pf_addr *, u_int8_t); 1995 void pf_addr_inc(struct pf_addr *, sa_family_t); 1996 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *); 1997 #endif /* INET6 */ 1998 1999 u_int32_t pf_new_isn(struct pf_kstate *); 2000 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 2001 sa_family_t); 2002 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2003 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 2004 u_int8_t); 2005 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 2006 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t, 2007 bool, u_int8_t); 2008 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t, 2009 bool, u_int8_t); 2010 void pf_send_deferred_syn(struct pf_kstate *); 2011 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 2012 struct pf_addr *, sa_family_t); 2013 int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2014 struct pf_addr *, sa_family_t); 2015 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2016 2017 void pf_normalize_init(void); 2018 void pf_normalize_cleanup(void); 2019 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *, 2020 struct pf_pdesc *); 2021 void pf_normalize_tcp_cleanup(struct pf_kstate *); 2022 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 2023 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 2024 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 2025 u_short *, struct tcphdr *, struct pf_kstate *, 2026 struct pf_state_peer *, struct pf_state_peer *, int *); 2027 u_int32_t 2028 pf_state_expires(const struct pf_kstate *); 2029 void pf_purge_expired_fragments(void); 2030 void pf_purge_fragments(uint32_t); 2031 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 2032 int); 2033 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 2034 struct pf_state_key *pf_alloc_state_key(int); 2035 void pfr_initialize(void); 2036 void pfr_cleanup(void); 2037 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2038 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2039 u_int64_t, int, int, int); 2040 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 2041 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2042 struct pfr_ktable * 2043 pfr_attach_table(struct pf_kruleset *, char *); 2044 void pfr_detach_table(struct pfr_ktable *); 2045 int pfr_clr_tables(struct pfr_table *, int *, int); 2046 int pfr_add_tables(struct pfr_table *, int, int *, int); 2047 int pfr_del_tables(struct pfr_table *, int, int *, int); 2048 int pfr_table_count(struct pfr_table *, int); 2049 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2050 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2051 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2052 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2053 int pfr_clr_addrs(struct pfr_table *, int *, int); 2054 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 2055 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2056 int); 2057 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2058 int); 2059 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2060 int *, int *, int *, int, u_int32_t); 2061 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2062 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2063 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2064 int); 2065 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2066 int); 2067 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2068 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2069 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2070 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2071 int *, u_int32_t, int); 2072 2073 MALLOC_DECLARE(PFI_MTYPE); 2074 VNET_DECLARE(struct pfi_kkif *, pfi_all); 2075 #define V_pfi_all VNET(pfi_all) 2076 2077 void pfi_initialize(void); 2078 void pfi_initialize_vnet(void); 2079 void pfi_cleanup(void); 2080 void pfi_cleanup_vnet(void); 2081 void pfi_kkif_ref(struct pfi_kkif *); 2082 void pfi_kkif_unref(struct pfi_kkif *); 2083 struct pfi_kkif *pfi_kkif_find(const char *); 2084 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 2085 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 2086 void pfi_kkif_purge(void); 2087 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2088 sa_family_t); 2089 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2090 void pfi_dynaddr_remove(struct pfi_dynaddr *); 2091 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2092 void pfi_update_status(const char *, struct pf_status *); 2093 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2094 int pfi_set_flags(const char *, int); 2095 int pfi_clear_flags(const char *, int); 2096 2097 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 2098 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 2099 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 2100 sa_family_t); 2101 2102 u_int16_t pf_get_mss(struct mbuf *, int, u_int16_t, sa_family_t); 2103 u_int8_t pf_get_wscale(struct mbuf *, int, u_int16_t, sa_family_t); 2104 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t, 2105 const struct pf_addr *, const struct pf_addr *, 2106 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2107 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2108 u_int16_t); 2109 void pf_send_tcp(const struct pf_krule *, sa_family_t, 2110 const struct pf_addr *, const struct pf_addr *, 2111 u_int16_t, u_int16_t, u_int32_t, u_int32_t, 2112 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int, 2113 u_int16_t); 2114 2115 void pf_syncookies_init(void); 2116 void pf_syncookies_cleanup(void); 2117 int pf_get_syncookies(struct pfioc_nv *); 2118 int pf_set_syncookies(struct pfioc_nv *); 2119 int pf_synflood_check(struct pf_pdesc *); 2120 void pf_syncookie_send(struct mbuf *m, int off, 2121 struct pf_pdesc *); 2122 u_int8_t pf_syncookie_validate(struct pf_pdesc *); 2123 struct mbuf * pf_syncookie_recreate_syn(uint8_t, int, 2124 struct pf_pdesc *); 2125 2126 VNET_DECLARE(struct pf_kstatus, pf_status); 2127 #define V_pf_status VNET(pf_status) 2128 2129 struct pf_limit { 2130 uma_zone_t zone; 2131 u_int limit; 2132 }; 2133 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 2134 #define V_pf_limits VNET(pf_limits) 2135 2136 #endif /* _KERNEL */ 2137 2138 #ifdef _KERNEL 2139 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 2140 #define V_pf_anchors VNET(pf_anchors) 2141 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 2142 #define V_pf_main_anchor VNET(pf_main_anchor) 2143 #define pf_main_ruleset V_pf_main_anchor.ruleset 2144 2145 void pf_init_kruleset(struct pf_kruleset *); 2146 int pf_kanchor_setup(struct pf_krule *, 2147 const struct pf_kruleset *, const char *); 2148 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 2149 const struct pf_krule *, nvlist_t *); 2150 int pf_kanchor_copyout(const struct pf_kruleset *, 2151 const struct pf_krule *, struct pfioc_rule *); 2152 void pf_kanchor_remove(struct pf_krule *); 2153 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 2154 struct pf_kruleset *pf_find_kruleset(const char *); 2155 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 2156 void pf_rs_initialize(void); 2157 2158 struct pf_krule *pf_krule_alloc(void); 2159 void pf_krule_free(struct pf_krule *); 2160 #endif 2161 2162 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 2163 int pf_osfp_add(struct pf_osfp_ioctl *); 2164 #ifdef _KERNEL 2165 struct pf_osfp_enlist * 2166 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 2167 const struct tcphdr *); 2168 #endif /* _KERNEL */ 2169 void pf_osfp_flush(void); 2170 int pf_osfp_get(struct pf_osfp_ioctl *); 2171 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2172 2173 #ifdef _KERNEL 2174 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 2175 2176 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *, 2177 struct pf_kruleset **, int, struct pf_krule **, 2178 struct pf_krule **, int *); 2179 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *, 2180 struct pf_kruleset **, int, struct pf_krule **, 2181 struct pf_krule **, int *); 2182 2183 int pf_map_addr(u_int8_t, struct pf_krule *, 2184 struct pf_addr *, struct pf_addr *, 2185 struct pf_addr *, struct pf_ksrc_node **); 2186 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 2187 int, int, struct pfi_kkif *, struct pf_ksrc_node **, 2188 struct pf_state_key **, struct pf_state_key **, 2189 struct pf_addr *, struct pf_addr *, 2190 uint16_t, uint16_t, struct pf_kanchor_stackframe *); 2191 2192 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 2193 struct pf_addr *, u_int16_t, u_int16_t); 2194 struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 2195 2196 struct pfi_kkif *pf_kkif_create(int); 2197 void pf_kkif_free(struct pfi_kkif *); 2198 void pf_kkif_zero(struct pfi_kkif *); 2199 #endif /* _KERNEL */ 2200 2201 #endif /* _NET_PFVAR_H_ */ 2202