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