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