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/sysctl.h> 46 #include <sys/lock.h> 47 #include <sys/rmlock.h> 48 #include <sys/tree.h> 49 #include <vm/uma.h> 50 51 #include <net/radix.h> 52 #include <netinet/in.h> 53 54 #include <netpfil/pf/pf.h> 55 #include <netpfil/pf/pf_altq.h> 56 #include <netpfil/pf/pf_mtag.h> 57 58 #ifdef _KERNEL 59 60 SYSCTL_DECL(_net_pf); 61 MALLOC_DECLARE(M_PFHASH); 62 63 struct pfi_dynaddr { 64 TAILQ_ENTRY(pfi_dynaddr) entry; 65 struct pf_addr pfid_addr4; 66 struct pf_addr pfid_mask4; 67 struct pf_addr pfid_addr6; 68 struct pf_addr pfid_mask6; 69 struct pfr_ktable *pfid_kt; 70 struct pfi_kkif *pfid_kif; 71 int pfid_net; /* mask or 128 */ 72 int pfid_acnt4; /* address count IPv4 */ 73 int pfid_acnt6; /* address count IPv6 */ 74 sa_family_t pfid_af; /* rule af */ 75 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 76 }; 77 78 /* 79 * Address manipulation macros 80 */ 81 #define HTONL(x) (x) = htonl((__uint32_t)(x)) 82 #define HTONS(x) (x) = htons((__uint16_t)(x)) 83 #define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 84 #define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 85 86 #define PF_NAME "pf" 87 88 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 89 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 90 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 91 92 #define PF_STATE_LOCK(s) \ 93 do { \ 94 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 95 PF_HASHROW_LOCK(_ih); \ 96 } while (0) 97 98 #define PF_STATE_UNLOCK(s) \ 99 do { \ 100 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \ 101 PF_HASHROW_UNLOCK(_ih); \ 102 } while (0) 103 104 #ifdef INVARIANTS 105 #define PF_STATE_LOCK_ASSERT(s) \ 106 do { \ 107 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 108 PF_HASHROW_ASSERT(_ih); \ 109 } while (0) 110 #else /* !INVARIANTS */ 111 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 112 #endif /* INVARIANTS */ 113 114 extern struct mtx pf_unlnkdrules_mtx; 115 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 116 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 117 118 extern struct rmlock pf_rules_lock; 119 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 120 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker) 121 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker) 122 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock) 123 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock) 124 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED) 125 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED) 126 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED) 127 128 extern struct sx pf_end_lock; 129 130 #define PF_MODVER 1 131 #define PFLOG_MODVER 1 132 #define PFSYNC_MODVER 1 133 134 #define PFLOG_MINVER 1 135 #define PFLOG_PREFVER PFLOG_MODVER 136 #define PFLOG_MAXVER 1 137 #define PFSYNC_MINVER 1 138 #define PFSYNC_PREFVER PFSYNC_MODVER 139 #define PFSYNC_MAXVER 1 140 141 #ifdef INET 142 #ifndef INET6 143 #define PF_INET_ONLY 144 #endif /* ! INET6 */ 145 #endif /* INET */ 146 147 #ifdef INET6 148 #ifndef INET 149 #define PF_INET6_ONLY 150 #endif /* ! INET */ 151 #endif /* INET6 */ 152 153 #ifdef INET 154 #ifdef INET6 155 #define PF_INET_INET6 156 #endif /* INET6 */ 157 #endif /* INET */ 158 159 #else 160 161 #define PF_INET_INET6 162 163 #endif /* _KERNEL */ 164 165 /* Both IPv4 and IPv6 */ 166 #ifdef PF_INET_INET6 167 168 #define PF_AEQ(a, b, c) \ 169 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 170 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 171 (a)->addr32[2] == (b)->addr32[2] && \ 172 (a)->addr32[1] == (b)->addr32[1] && \ 173 (a)->addr32[0] == (b)->addr32[0])) \ 174 175 #define PF_ANEQ(a, b, c) \ 176 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 177 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 178 (a)->addr32[1] != (b)->addr32[1] || \ 179 (a)->addr32[2] != (b)->addr32[2] || \ 180 (a)->addr32[3] != (b)->addr32[3]))) \ 181 182 #define PF_AZERO(a, c) \ 183 ((c == AF_INET && !(a)->addr32[0]) || \ 184 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 185 !(a)->addr32[2] && !(a)->addr32[3] )) \ 186 187 #define PF_MATCHA(n, a, m, b, f) \ 188 pf_match_addr(n, a, m, b, f) 189 190 #define PF_ACPY(a, b, f) \ 191 pf_addrcpy(a, b, f) 192 193 #define PF_AINC(a, f) \ 194 pf_addr_inc(a, f) 195 196 #define PF_POOLMASK(a, b, c, d, f) \ 197 pf_poolmask(a, b, c, d, f) 198 199 #else 200 201 /* Just IPv6 */ 202 203 #ifdef PF_INET6_ONLY 204 205 #define PF_AEQ(a, b, c) \ 206 ((a)->addr32[3] == (b)->addr32[3] && \ 207 (a)->addr32[2] == (b)->addr32[2] && \ 208 (a)->addr32[1] == (b)->addr32[1] && \ 209 (a)->addr32[0] == (b)->addr32[0]) \ 210 211 #define PF_ANEQ(a, b, c) \ 212 ((a)->addr32[3] != (b)->addr32[3] || \ 213 (a)->addr32[2] != (b)->addr32[2] || \ 214 (a)->addr32[1] != (b)->addr32[1] || \ 215 (a)->addr32[0] != (b)->addr32[0]) \ 216 217 #define PF_AZERO(a, c) \ 218 (!(a)->addr32[0] && \ 219 !(a)->addr32[1] && \ 220 !(a)->addr32[2] && \ 221 !(a)->addr32[3] ) \ 222 223 #define PF_MATCHA(n, a, m, b, f) \ 224 pf_match_addr(n, a, m, b, f) 225 226 #define PF_ACPY(a, b, f) \ 227 pf_addrcpy(a, b, f) 228 229 #define PF_AINC(a, f) \ 230 pf_addr_inc(a, f) 231 232 #define PF_POOLMASK(a, b, c, d, f) \ 233 pf_poolmask(a, b, c, d, f) 234 235 #else 236 237 /* Just IPv4 */ 238 #ifdef PF_INET_ONLY 239 240 #define PF_AEQ(a, b, c) \ 241 ((a)->addr32[0] == (b)->addr32[0]) 242 243 #define PF_ANEQ(a, b, c) \ 244 ((a)->addr32[0] != (b)->addr32[0]) 245 246 #define PF_AZERO(a, c) \ 247 (!(a)->addr32[0]) 248 249 #define PF_MATCHA(n, a, m, b, f) \ 250 pf_match_addr(n, a, m, b, f) 251 252 #define PF_ACPY(a, b, f) \ 253 (a)->v4.s_addr = (b)->v4.s_addr 254 255 #define PF_AINC(a, f) \ 256 do { \ 257 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 258 } while (0) 259 260 #define PF_POOLMASK(a, b, c, d, f) \ 261 do { \ 262 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 263 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 264 } while (0) 265 266 #endif /* PF_INET_ONLY */ 267 #endif /* PF_INET6_ONLY */ 268 #endif /* PF_INET_INET6 */ 269 270 /* 271 * XXX callers not FIB-aware in our version of pf yet. 272 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 273 */ 274 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 275 ( \ 276 (((aw)->type == PF_ADDR_NOROUTE && \ 277 pf_routable((x), (af), NULL, (rtid))) || \ 278 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 279 pf_routable((x), (af), (ifp), (rtid))) || \ 280 ((aw)->type == PF_ADDR_TABLE && \ 281 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 282 ((aw)->type == PF_ADDR_DYNIFTL && \ 283 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 284 ((aw)->type == PF_ADDR_RANGE && \ 285 !pf_match_addr_range(&(aw)->v.a.addr, \ 286 &(aw)->v.a.mask, (x), (af))) || \ 287 ((aw)->type == PF_ADDR_ADDRMASK && \ 288 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 289 !PF_MATCHA(0, &(aw)->v.a.addr, \ 290 &(aw)->v.a.mask, (x), (af))))) != \ 291 (neg) \ 292 ) 293 294 #define PF_ALGNMNT(off) (((off) % 2) == 0) 295 296 #ifdef _KERNEL 297 298 struct pf_kpooladdr { 299 struct pf_addr_wrap addr; 300 TAILQ_ENTRY(pf_kpooladdr) entries; 301 char ifname[IFNAMSIZ]; 302 struct pfi_kkif *kif; 303 }; 304 305 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 306 307 struct pf_kpool { 308 struct pf_kpalist list; 309 struct pf_kpooladdr *cur; 310 struct pf_poolhashkey key; 311 struct pf_addr counter; 312 int tblidx; 313 u_int16_t proxy_port[2]; 314 u_int8_t opts; 315 }; 316 317 union pf_krule_ptr { 318 struct pf_krule *ptr; 319 u_int32_t nr; 320 }; 321 322 struct pf_krule { 323 struct pf_rule_addr src; 324 struct pf_rule_addr dst; 325 union pf_krule_ptr skip[PF_SKIP_COUNT]; 326 char label[PF_RULE_LABEL_SIZE]; 327 char ifname[IFNAMSIZ]; 328 char qname[PF_QNAME_SIZE]; 329 char pqname[PF_QNAME_SIZE]; 330 char tagname[PF_TAG_NAME_SIZE]; 331 char match_tagname[PF_TAG_NAME_SIZE]; 332 333 char overload_tblname[PF_TABLE_NAME_SIZE]; 334 335 TAILQ_ENTRY(pf_krule) entries; 336 struct pf_kpool rpool; 337 338 counter_u64_t evaluations; 339 counter_u64_t packets[2]; 340 counter_u64_t bytes[2]; 341 342 struct pfi_kkif *kif; 343 struct pf_kanchor *anchor; 344 struct pfr_ktable *overload_tbl; 345 346 pf_osfp_t os_fingerprint; 347 348 int rtableid; 349 u_int32_t timeout[PFTM_MAX]; 350 u_int32_t max_states; 351 u_int32_t max_src_nodes; 352 u_int32_t max_src_states; 353 u_int32_t max_src_conn; 354 struct { 355 u_int32_t limit; 356 u_int32_t seconds; 357 } max_src_conn_rate; 358 u_int32_t qid; 359 u_int32_t pqid; 360 u_int32_t nr; 361 u_int32_t prob; 362 uid_t cuid; 363 pid_t cpid; 364 365 counter_u64_t states_cur; 366 counter_u64_t states_tot; 367 counter_u64_t src_nodes; 368 369 u_int16_t return_icmp; 370 u_int16_t return_icmp6; 371 u_int16_t max_mss; 372 u_int16_t tag; 373 u_int16_t match_tag; 374 u_int16_t scrub_flags; 375 376 struct pf_rule_uid uid; 377 struct pf_rule_gid gid; 378 379 u_int32_t rule_flag; 380 u_int8_t action; 381 u_int8_t direction; 382 u_int8_t log; 383 u_int8_t logif; 384 u_int8_t quick; 385 u_int8_t ifnot; 386 u_int8_t match_tag_not; 387 u_int8_t natpass; 388 389 u_int8_t keep_state; 390 sa_family_t af; 391 u_int8_t proto; 392 u_int8_t type; 393 u_int8_t code; 394 u_int8_t flags; 395 u_int8_t flagset; 396 u_int8_t min_ttl; 397 u_int8_t allow_opts; 398 u_int8_t rt; 399 u_int8_t return_ttl; 400 u_int8_t tos; 401 u_int8_t set_tos; 402 u_int8_t anchor_relative; 403 u_int8_t anchor_wildcard; 404 405 u_int8_t flush; 406 u_int8_t prio; 407 u_int8_t set_prio[2]; 408 409 struct { 410 struct pf_addr addr; 411 u_int16_t port; 412 } divert; 413 }; 414 415 struct pf_ksrc_node { 416 LIST_ENTRY(pf_ksrc_node) entry; 417 struct pf_addr addr; 418 struct pf_addr raddr; 419 union pf_krule_ptr rule; 420 struct pfi_kkif *kif; 421 counter_u64_t bytes[2]; 422 counter_u64_t packets[2]; 423 u_int32_t states; 424 u_int32_t conn; 425 struct pf_threshold conn_rate; 426 u_int32_t creation; 427 u_int32_t expire; 428 sa_family_t af; 429 u_int8_t ruletype; 430 }; 431 #endif 432 433 struct pf_state_scrub { 434 struct timeval pfss_last; /* time received last packet */ 435 u_int32_t pfss_tsecr; /* last echoed timestamp */ 436 u_int32_t pfss_tsval; /* largest timestamp */ 437 u_int32_t pfss_tsval0; /* original timestamp */ 438 u_int16_t pfss_flags; 439 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 440 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 441 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 442 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 443 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 444 u_int8_t pfss_ttl; /* stashed TTL */ 445 u_int8_t pad; 446 u_int32_t pfss_ts_mod; /* timestamp modulation */ 447 }; 448 449 struct pf_state_host { 450 struct pf_addr addr; 451 u_int16_t port; 452 u_int16_t pad; 453 }; 454 455 struct pf_state_peer { 456 struct pf_state_scrub *scrub; /* state is scrubbed */ 457 u_int32_t seqlo; /* Max sequence number sent */ 458 u_int32_t seqhi; /* Max the other end ACKd + win */ 459 u_int32_t seqdiff; /* Sequence number modulator */ 460 u_int16_t max_win; /* largest window (pre scaling) */ 461 u_int16_t mss; /* Maximum segment size option */ 462 u_int8_t state; /* active state level */ 463 u_int8_t wscale; /* window scaling factor */ 464 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 465 u_int8_t pad[1]; 466 }; 467 468 /* Keep synced with struct pf_state_key. */ 469 struct pf_state_key_cmp { 470 struct pf_addr addr[2]; 471 u_int16_t port[2]; 472 sa_family_t af; 473 u_int8_t proto; 474 u_int8_t pad[2]; 475 }; 476 477 struct pf_state_key { 478 struct pf_addr addr[2]; 479 u_int16_t port[2]; 480 sa_family_t af; 481 u_int8_t proto; 482 u_int8_t pad[2]; 483 484 LIST_ENTRY(pf_state_key) entry; 485 TAILQ_HEAD(, pf_state) states[2]; 486 }; 487 488 /* Keep synced with struct pf_state. */ 489 struct pf_state_cmp { 490 u_int64_t id; 491 u_int32_t creatorid; 492 u_int8_t direction; 493 u_int8_t pad[3]; 494 }; 495 496 #define PFSTATE_ALLOWOPTS 0x01 497 #define PFSTATE_SLOPPY 0x02 498 /* was PFSTATE_PFLOW 0x04 */ 499 #define PFSTATE_NOSYNC 0x08 500 #define PFSTATE_ACK 0x10 501 #define PFSTATE_SETPRIO 0x0200 502 #define PFSTATE_SETMASK (PFSTATE_SETPRIO) 503 504 #ifdef _KERNEL 505 struct pf_state { 506 u_int64_t id; 507 u_int32_t creatorid; 508 u_int8_t direction; 509 u_int8_t pad[3]; 510 511 u_int refs; 512 TAILQ_ENTRY(pf_state) sync_list; 513 TAILQ_ENTRY(pf_state) key_list[2]; 514 LIST_ENTRY(pf_state) entry; 515 struct pf_state_peer src; 516 struct pf_state_peer dst; 517 union pf_krule_ptr rule; 518 union pf_krule_ptr anchor; 519 union pf_krule_ptr nat_rule; 520 struct pf_addr rt_addr; 521 struct pf_state_key *key[2]; /* addresses stack and wire */ 522 struct pfi_kkif *kif; 523 struct pfi_kkif *rt_kif; 524 struct pf_ksrc_node *src_node; 525 struct pf_ksrc_node *nat_src_node; 526 counter_u64_t packets[2]; 527 counter_u64_t bytes[2]; 528 u_int32_t creation; 529 u_int32_t expire; 530 u_int32_t pfsync_time; 531 u_int16_t tag; 532 u_int8_t log; 533 u_int8_t state_flags; 534 u_int8_t timeout; 535 u_int8_t sync_state; /* PFSYNC_S_x */ 536 537 /* XXX */ 538 u_int8_t sync_updates; 539 u_int8_t _tail[3]; 540 }; 541 #endif 542 543 /* 544 * Unified state structures for pulling states out of the kernel 545 * used by pfsync(4) and the pf(4) ioctl. 546 */ 547 struct pfsync_state_scrub { 548 u_int16_t pfss_flags; 549 u_int8_t pfss_ttl; /* stashed TTL */ 550 #define PFSYNC_SCRUB_FLAG_VALID 0x01 551 u_int8_t scrub_flag; 552 u_int32_t pfss_ts_mod; /* timestamp modulation */ 553 } __packed; 554 555 struct pfsync_state_peer { 556 struct pfsync_state_scrub scrub; /* state is scrubbed */ 557 u_int32_t seqlo; /* Max sequence number sent */ 558 u_int32_t seqhi; /* Max the other end ACKd + win */ 559 u_int32_t seqdiff; /* Sequence number modulator */ 560 u_int16_t max_win; /* largest window (pre scaling) */ 561 u_int16_t mss; /* Maximum segment size option */ 562 u_int8_t state; /* active state level */ 563 u_int8_t wscale; /* window scaling factor */ 564 u_int8_t pad[6]; 565 } __packed; 566 567 struct pfsync_state_key { 568 struct pf_addr addr[2]; 569 u_int16_t port[2]; 570 }; 571 572 struct pfsync_state { 573 u_int64_t id; 574 char ifname[IFNAMSIZ]; 575 struct pfsync_state_key key[2]; 576 struct pfsync_state_peer src; 577 struct pfsync_state_peer dst; 578 struct pf_addr rt_addr; 579 u_int32_t rule; 580 u_int32_t anchor; 581 u_int32_t nat_rule; 582 u_int32_t creation; 583 u_int32_t expire; 584 u_int32_t packets[2][2]; 585 u_int32_t bytes[2][2]; 586 u_int32_t creatorid; 587 sa_family_t af; 588 u_int8_t proto; 589 u_int8_t direction; 590 u_int8_t __spare[2]; 591 u_int8_t log; 592 u_int8_t state_flags; 593 u_int8_t timeout; 594 u_int8_t sync_flags; 595 u_int8_t updates; 596 } __packed; 597 598 #ifdef _KERNEL 599 /* pfsync */ 600 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 601 typedef void pfsync_insert_state_t(struct pf_state *); 602 typedef void pfsync_update_state_t(struct pf_state *); 603 typedef void pfsync_delete_state_t(struct pf_state *); 604 typedef void pfsync_clear_states_t(u_int32_t, const char *); 605 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 606 typedef void pfsync_detach_ifnet_t(struct ifnet *); 607 608 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 609 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 610 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 611 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 612 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 613 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 614 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 615 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 616 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 617 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 618 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 619 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 620 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 621 622 void pfsync_state_export(struct pfsync_state *, 623 struct pf_state *); 624 625 /* pflog */ 626 struct pf_kruleset; 627 struct pf_pdesc; 628 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t, 629 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *, 630 struct pf_kruleset *, struct pf_pdesc *, int); 631 extern pflog_packet_t *pflog_packet_ptr; 632 633 #endif /* _KERNEL */ 634 635 #define PFSYNC_FLAG_SRCNODE 0x04 636 #define PFSYNC_FLAG_NATSRCNODE 0x08 637 638 /* for copies to/from network byte order */ 639 /* ioctl interface also uses network byte order */ 640 #define pf_state_peer_hton(s,d) do { \ 641 (d)->seqlo = htonl((s)->seqlo); \ 642 (d)->seqhi = htonl((s)->seqhi); \ 643 (d)->seqdiff = htonl((s)->seqdiff); \ 644 (d)->max_win = htons((s)->max_win); \ 645 (d)->mss = htons((s)->mss); \ 646 (d)->state = (s)->state; \ 647 (d)->wscale = (s)->wscale; \ 648 if ((s)->scrub) { \ 649 (d)->scrub.pfss_flags = \ 650 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 651 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 652 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 653 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 654 } \ 655 } while (0) 656 657 #define pf_state_peer_ntoh(s,d) do { \ 658 (d)->seqlo = ntohl((s)->seqlo); \ 659 (d)->seqhi = ntohl((s)->seqhi); \ 660 (d)->seqdiff = ntohl((s)->seqdiff); \ 661 (d)->max_win = ntohs((s)->max_win); \ 662 (d)->mss = ntohs((s)->mss); \ 663 (d)->state = (s)->state; \ 664 (d)->wscale = (s)->wscale; \ 665 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 666 (d)->scrub != NULL) { \ 667 (d)->scrub->pfss_flags = \ 668 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 669 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 670 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 671 } \ 672 } while (0) 673 674 #define pf_state_counter_hton(s,d) do { \ 675 d[0] = htonl((s>>32)&0xffffffff); \ 676 d[1] = htonl(s&0xffffffff); \ 677 } while (0) 678 679 #define pf_state_counter_from_pfsync(s) \ 680 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 681 682 #define pf_state_counter_ntoh(s,d) do { \ 683 d = ntohl(s[0]); \ 684 d = d<<32; \ 685 d += ntohl(s[1]); \ 686 } while (0) 687 688 TAILQ_HEAD(pf_krulequeue, pf_krule); 689 690 struct pf_kanchor; 691 692 struct pf_kruleset { 693 struct { 694 struct pf_krulequeue queues[2]; 695 struct { 696 struct pf_krulequeue *ptr; 697 struct pf_krule **ptr_array; 698 u_int32_t rcount; 699 u_int32_t ticket; 700 int open; 701 } active, inactive; 702 } rules[PF_RULESET_MAX]; 703 struct pf_kanchor *anchor; 704 u_int32_t tticket; 705 int tables; 706 int topen; 707 }; 708 709 RB_HEAD(pf_kanchor_global, pf_kanchor); 710 RB_HEAD(pf_kanchor_node, pf_kanchor); 711 struct pf_kanchor { 712 RB_ENTRY(pf_kanchor) entry_global; 713 RB_ENTRY(pf_kanchor) entry_node; 714 struct pf_kanchor *parent; 715 struct pf_kanchor_node children; 716 char name[PF_ANCHOR_NAME_SIZE]; 717 char path[MAXPATHLEN]; 718 struct pf_kruleset ruleset; 719 int refcnt; /* anchor rules */ 720 int match; /* XXX: used for pfctl black magic */ 721 }; 722 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 723 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 724 725 #define PF_RESERVED_ANCHOR "_pf" 726 727 #define PFR_TFLAG_PERSIST 0x00000001 728 #define PFR_TFLAG_CONST 0x00000002 729 #define PFR_TFLAG_ACTIVE 0x00000004 730 #define PFR_TFLAG_INACTIVE 0x00000008 731 #define PFR_TFLAG_REFERENCED 0x00000010 732 #define PFR_TFLAG_REFDANCHOR 0x00000020 733 #define PFR_TFLAG_COUNTERS 0x00000040 734 /* Adjust masks below when adding flags. */ 735 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 736 PFR_TFLAG_CONST | \ 737 PFR_TFLAG_COUNTERS) 738 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 739 PFR_TFLAG_INACTIVE | \ 740 PFR_TFLAG_REFERENCED | \ 741 PFR_TFLAG_REFDANCHOR) 742 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 743 PFR_TFLAG_CONST | \ 744 PFR_TFLAG_ACTIVE | \ 745 PFR_TFLAG_INACTIVE | \ 746 PFR_TFLAG_REFERENCED | \ 747 PFR_TFLAG_REFDANCHOR | \ 748 PFR_TFLAG_COUNTERS) 749 750 struct pf_kanchor_stackframe; 751 752 struct pfr_table { 753 char pfrt_anchor[MAXPATHLEN]; 754 char pfrt_name[PF_TABLE_NAME_SIZE]; 755 u_int32_t pfrt_flags; 756 u_int8_t pfrt_fback; 757 }; 758 759 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 760 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 761 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 762 763 struct pfr_addr { 764 union { 765 struct in_addr _pfra_ip4addr; 766 struct in6_addr _pfra_ip6addr; 767 } pfra_u; 768 u_int8_t pfra_af; 769 u_int8_t pfra_net; 770 u_int8_t pfra_not; 771 u_int8_t pfra_fback; 772 }; 773 #define pfra_ip4addr pfra_u._pfra_ip4addr 774 #define pfra_ip6addr pfra_u._pfra_ip6addr 775 776 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 777 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 778 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 779 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 780 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 781 782 struct pfr_astats { 783 struct pfr_addr pfras_a; 784 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 785 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 786 long pfras_tzero; 787 }; 788 789 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 790 791 struct pfr_tstats { 792 struct pfr_table pfrts_t; 793 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 794 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 795 u_int64_t pfrts_match; 796 u_int64_t pfrts_nomatch; 797 long pfrts_tzero; 798 int pfrts_cnt; 799 int pfrts_refcnt[PFR_REFCNT_MAX]; 800 }; 801 802 struct pfr_ktstats { 803 struct pfr_table pfrts_t; 804 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 805 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 806 counter_u64_t pfrkts_match; 807 counter_u64_t pfrkts_nomatch; 808 long pfrkts_tzero; 809 int pfrkts_cnt; 810 int pfrkts_refcnt[PFR_REFCNT_MAX]; 811 }; 812 #define pfrts_name pfrts_t.pfrt_name 813 #define pfrts_flags pfrts_t.pfrt_flags 814 815 #ifndef _SOCKADDR_UNION_DEFINED 816 #define _SOCKADDR_UNION_DEFINED 817 union sockaddr_union { 818 struct sockaddr sa; 819 struct sockaddr_in sin; 820 struct sockaddr_in6 sin6; 821 }; 822 #endif /* _SOCKADDR_UNION_DEFINED */ 823 824 struct pfr_kcounters { 825 counter_u64_t pfrkc_counters; 826 long pfrkc_tzero; 827 }; 828 #define pfr_kentry_counter(kc, dir, op, t) \ 829 ((kc)->pfrkc_counters + \ 830 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 831 832 #ifdef _KERNEL 833 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 834 struct pfr_kentry { 835 struct radix_node pfrke_node[2]; 836 union sockaddr_union pfrke_sa; 837 SLIST_ENTRY(pfr_kentry) pfrke_workq; 838 struct pfr_kcounters pfrke_counters; 839 u_int8_t pfrke_af; 840 u_int8_t pfrke_net; 841 u_int8_t pfrke_not; 842 u_int8_t pfrke_mark; 843 }; 844 845 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 846 RB_HEAD(pfr_ktablehead, pfr_ktable); 847 struct pfr_ktable { 848 struct pfr_ktstats pfrkt_kts; 849 RB_ENTRY(pfr_ktable) pfrkt_tree; 850 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 851 struct radix_node_head *pfrkt_ip4; 852 struct radix_node_head *pfrkt_ip6; 853 struct pfr_ktable *pfrkt_shadow; 854 struct pfr_ktable *pfrkt_root; 855 struct pf_kruleset *pfrkt_rs; 856 long pfrkt_larg; 857 int pfrkt_nflags; 858 }; 859 #define pfrkt_t pfrkt_kts.pfrts_t 860 #define pfrkt_name pfrkt_t.pfrt_name 861 #define pfrkt_anchor pfrkt_t.pfrt_anchor 862 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 863 #define pfrkt_flags pfrkt_t.pfrt_flags 864 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 865 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 866 #define pfrkt_packets pfrkt_kts.pfrkts_packets 867 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 868 #define pfrkt_match pfrkt_kts.pfrkts_match 869 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 870 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 871 #endif 872 873 #ifdef _KERNEL 874 struct pfi_kkif { 875 char pfik_name[IFNAMSIZ]; 876 union { 877 RB_ENTRY(pfi_kkif) _pfik_tree; 878 LIST_ENTRY(pfi_kkif) _pfik_list; 879 } _pfik_glue; 880 #define pfik_tree _pfik_glue._pfik_tree 881 #define pfik_list _pfik_glue._pfik_list 882 counter_u64_t pfik_packets[2][2][2]; 883 counter_u64_t pfik_bytes[2][2][2]; 884 u_int32_t pfik_tzero; 885 u_int pfik_flags; 886 struct ifnet *pfik_ifp; 887 struct ifg_group *pfik_group; 888 u_int pfik_rulerefs; 889 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 890 }; 891 #endif 892 893 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 894 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 895 896 #ifdef _KERNEL 897 struct pf_pdesc { 898 struct { 899 int done; 900 uid_t uid; 901 gid_t gid; 902 } lookup; 903 u_int64_t tot_len; /* Make Mickey money */ 904 union { 905 struct tcphdr *tcp; 906 struct udphdr *udp; 907 struct icmp *icmp; 908 #ifdef INET6 909 struct icmp6_hdr *icmp6; 910 #endif /* INET6 */ 911 void *any; 912 } hdr; 913 914 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */ 915 struct pf_addr *src; /* src address */ 916 struct pf_addr *dst; /* dst address */ 917 u_int16_t *sport; 918 u_int16_t *dport; 919 struct pf_mtag *pf_mtag; 920 921 u_int32_t p_len; /* total length of payload */ 922 923 u_int16_t *ip_sum; 924 u_int16_t *proto_sum; 925 u_int16_t flags; /* Let SCRUB trigger behavior in 926 * state code. Easier than tags */ 927 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 928 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 929 sa_family_t af; 930 u_int8_t proto; 931 u_int8_t tos; 932 u_int8_t dir; /* direction */ 933 u_int8_t sidx; /* key index for source */ 934 u_int8_t didx; /* key index for destination */ 935 }; 936 #endif 937 938 /* flags for RDR options */ 939 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 940 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 941 942 /* UDP state enumeration */ 943 #define PFUDPS_NO_TRAFFIC 0 944 #define PFUDPS_SINGLE 1 945 #define PFUDPS_MULTIPLE 2 946 947 #define PFUDPS_NSTATES 3 /* number of state levels */ 948 949 #define PFUDPS_NAMES { \ 950 "NO_TRAFFIC", \ 951 "SINGLE", \ 952 "MULTIPLE", \ 953 NULL \ 954 } 955 956 /* Other protocol state enumeration */ 957 #define PFOTHERS_NO_TRAFFIC 0 958 #define PFOTHERS_SINGLE 1 959 #define PFOTHERS_MULTIPLE 2 960 961 #define PFOTHERS_NSTATES 3 /* number of state levels */ 962 963 #define PFOTHERS_NAMES { \ 964 "NO_TRAFFIC", \ 965 "SINGLE", \ 966 "MULTIPLE", \ 967 NULL \ 968 } 969 970 #define ACTION_SET(a, x) \ 971 do { \ 972 if ((a) != NULL) \ 973 *(a) = (x); \ 974 } while (0) 975 976 #define REASON_SET(a, x) \ 977 do { \ 978 if ((a) != NULL) \ 979 *(a) = (x); \ 980 if (x < PFRES_MAX) \ 981 counter_u64_add(V_pf_status.counters[x], 1); \ 982 } while (0) 983 984 struct pf_kstatus { 985 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 986 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */ 987 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */ 988 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 989 uint32_t states; 990 uint32_t src_nodes; 991 uint32_t running; 992 uint32_t since; 993 uint32_t debug; 994 uint32_t hostid; 995 char ifname[IFNAMSIZ]; 996 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 997 }; 998 999 struct pf_divert { 1000 union { 1001 struct in_addr ipv4; 1002 struct in6_addr ipv6; 1003 } addr; 1004 u_int16_t port; 1005 }; 1006 1007 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1008 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1009 1010 /* 1011 * Limit the length of the fragment queue traversal. Remember 1012 * search entry points based on the fragment offset. 1013 */ 1014 #define PF_FRAG_ENTRY_POINTS 16 1015 1016 /* 1017 * The number of entries in the fragment queue must be limited 1018 * to avoid DoS by linear seaching. Instead of a global limit, 1019 * use a limit per entry point. For large packets these sum up. 1020 */ 1021 #define PF_FRAG_ENTRY_LIMIT 64 1022 1023 /* 1024 * ioctl parameter structures 1025 */ 1026 1027 struct pfioc_pooladdr { 1028 u_int32_t action; 1029 u_int32_t ticket; 1030 u_int32_t nr; 1031 u_int32_t r_num; 1032 u_int8_t r_action; 1033 u_int8_t r_last; 1034 u_int8_t af; 1035 char anchor[MAXPATHLEN]; 1036 struct pf_pooladdr addr; 1037 }; 1038 1039 struct pfioc_rule { 1040 u_int32_t action; 1041 u_int32_t ticket; 1042 u_int32_t pool_ticket; 1043 u_int32_t nr; 1044 char anchor[MAXPATHLEN]; 1045 char anchor_call[MAXPATHLEN]; 1046 struct pf_rule rule; 1047 }; 1048 1049 struct pfioc_natlook { 1050 struct pf_addr saddr; 1051 struct pf_addr daddr; 1052 struct pf_addr rsaddr; 1053 struct pf_addr rdaddr; 1054 u_int16_t sport; 1055 u_int16_t dport; 1056 u_int16_t rsport; 1057 u_int16_t rdport; 1058 sa_family_t af; 1059 u_int8_t proto; 1060 u_int8_t direction; 1061 }; 1062 1063 struct pfioc_state { 1064 struct pfsync_state state; 1065 }; 1066 1067 struct pfioc_src_node_kill { 1068 sa_family_t psnk_af; 1069 struct pf_rule_addr psnk_src; 1070 struct pf_rule_addr psnk_dst; 1071 u_int psnk_killed; 1072 }; 1073 1074 struct pfioc_state_kill { 1075 struct pf_state_cmp psk_pfcmp; 1076 sa_family_t psk_af; 1077 int psk_proto; 1078 struct pf_rule_addr psk_src; 1079 struct pf_rule_addr psk_dst; 1080 char psk_ifname[IFNAMSIZ]; 1081 char psk_label[PF_RULE_LABEL_SIZE]; 1082 u_int psk_killed; 1083 }; 1084 1085 struct pfioc_states { 1086 int ps_len; 1087 union { 1088 caddr_t psu_buf; 1089 struct pfsync_state *psu_states; 1090 } ps_u; 1091 #define ps_buf ps_u.psu_buf 1092 #define ps_states ps_u.psu_states 1093 }; 1094 1095 struct pfioc_src_nodes { 1096 int psn_len; 1097 union { 1098 caddr_t psu_buf; 1099 struct pf_src_node *psu_src_nodes; 1100 } psn_u; 1101 #define psn_buf psn_u.psu_buf 1102 #define psn_src_nodes psn_u.psu_src_nodes 1103 }; 1104 1105 struct pfioc_if { 1106 char ifname[IFNAMSIZ]; 1107 }; 1108 1109 struct pfioc_tm { 1110 int timeout; 1111 int seconds; 1112 }; 1113 1114 struct pfioc_limit { 1115 int index; 1116 unsigned limit; 1117 }; 1118 1119 struct pfioc_altq_v0 { 1120 u_int32_t action; 1121 u_int32_t ticket; 1122 u_int32_t nr; 1123 struct pf_altq_v0 altq; 1124 }; 1125 1126 struct pfioc_altq_v1 { 1127 u_int32_t action; 1128 u_int32_t ticket; 1129 u_int32_t nr; 1130 /* 1131 * Placed here so code that only uses the above parameters can be 1132 * written entirely in terms of the v0 or v1 type. 1133 */ 1134 u_int32_t version; 1135 struct pf_altq_v1 altq; 1136 }; 1137 1138 /* 1139 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1140 * the latest version of struct pf_altq_vX as it has that struct as a 1141 * member. 1142 */ 1143 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1144 1145 struct pfioc_qstats_v0 { 1146 u_int32_t ticket; 1147 u_int32_t nr; 1148 void *buf; 1149 int nbytes; 1150 u_int8_t scheduler; 1151 }; 1152 1153 struct pfioc_qstats_v1 { 1154 u_int32_t ticket; 1155 u_int32_t nr; 1156 void *buf; 1157 int nbytes; 1158 u_int8_t scheduler; 1159 /* 1160 * Placed here so code that only uses the above parameters can be 1161 * written entirely in terms of the v0 or v1 type. 1162 */ 1163 u_int32_t version; /* Requested version of stats struct */ 1164 }; 1165 1166 /* Latest version of struct pfioc_qstats_vX */ 1167 #define PFIOC_QSTATS_VERSION 1 1168 1169 struct pfioc_ruleset { 1170 u_int32_t nr; 1171 char path[MAXPATHLEN]; 1172 char name[PF_ANCHOR_NAME_SIZE]; 1173 }; 1174 1175 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1176 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1177 struct pfioc_trans { 1178 int size; /* number of elements */ 1179 int esize; /* size of each element in bytes */ 1180 struct pfioc_trans_e { 1181 int rs_num; 1182 char anchor[MAXPATHLEN]; 1183 u_int32_t ticket; 1184 } *array; 1185 }; 1186 1187 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1188 #define PFR_FLAG_DUMMY 0x00000002 1189 #define PFR_FLAG_FEEDBACK 0x00000004 1190 #define PFR_FLAG_CLSTATS 0x00000008 1191 #define PFR_FLAG_ADDRSTOO 0x00000010 1192 #define PFR_FLAG_REPLACE 0x00000020 1193 #define PFR_FLAG_ALLRSETS 0x00000040 1194 #define PFR_FLAG_ALLMASK 0x0000007F 1195 #ifdef _KERNEL 1196 #define PFR_FLAG_USERIOCTL 0x10000000 1197 #endif 1198 1199 struct pfioc_table { 1200 struct pfr_table pfrio_table; 1201 void *pfrio_buffer; 1202 int pfrio_esize; 1203 int pfrio_size; 1204 int pfrio_size2; 1205 int pfrio_nadd; 1206 int pfrio_ndel; 1207 int pfrio_nchange; 1208 int pfrio_flags; 1209 u_int32_t pfrio_ticket; 1210 }; 1211 #define pfrio_exists pfrio_nadd 1212 #define pfrio_nzero pfrio_nadd 1213 #define pfrio_nmatch pfrio_nadd 1214 #define pfrio_naddr pfrio_size2 1215 #define pfrio_setflag pfrio_size2 1216 #define pfrio_clrflag pfrio_nadd 1217 1218 struct pfioc_iface { 1219 char pfiio_name[IFNAMSIZ]; 1220 void *pfiio_buffer; 1221 int pfiio_esize; 1222 int pfiio_size; 1223 int pfiio_nzero; 1224 int pfiio_flags; 1225 }; 1226 1227 /* 1228 * ioctl operations 1229 */ 1230 1231 #define DIOCSTART _IO ('D', 1) 1232 #define DIOCSTOP _IO ('D', 2) 1233 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1234 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 1235 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1236 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1237 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 1238 /* XXX cut 8 - 17 */ 1239 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1240 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1241 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1242 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1243 #define DIOCCLRSTATUS _IO ('D', 22) 1244 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1245 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1246 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1247 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1248 /* XXX cut 26 - 28 */ 1249 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1250 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1251 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1252 #define DIOCCLRRULECTRS _IO ('D', 38) 1253 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1254 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1255 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1256 #define DIOCSTARTALTQ _IO ('D', 42) 1257 #define DIOCSTOPALTQ _IO ('D', 43) 1258 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 1259 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 1260 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 1261 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 1262 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 1263 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 1264 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 1265 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 1266 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 1267 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 1268 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1269 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1270 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1271 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1272 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1273 /* XXX cut 55 - 57 */ 1274 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1275 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1276 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1277 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1278 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1279 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1280 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1281 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1282 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1283 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1284 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1285 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1286 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1287 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1288 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1289 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1290 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1291 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1292 #define DIOCOSFPFLUSH _IO('D', 78) 1293 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1294 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1295 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1296 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1297 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1298 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1299 #define DIOCCLRSRCNODES _IO('D', 85) 1300 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1301 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1302 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1303 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1304 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1305 struct pf_ifspeed_v0 { 1306 char ifname[IFNAMSIZ]; 1307 u_int32_t baudrate; 1308 }; 1309 1310 struct pf_ifspeed_v1 { 1311 char ifname[IFNAMSIZ]; 1312 u_int32_t baudrate32; 1313 /* layout identical to struct pf_ifspeed_v0 up to this point */ 1314 u_int64_t baudrate; 1315 }; 1316 1317 /* Latest version of struct pf_ifspeed_vX */ 1318 #define PF_IFSPEED_VERSION 1 1319 1320 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 1321 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 1322 1323 /* 1324 * Compatibility and convenience macros 1325 */ 1326 #ifndef _KERNEL 1327 #ifdef PFIOC_USE_LATEST 1328 /* 1329 * Maintaining in-tree consumers of the ioctl interface is easier when that 1330 * code can be written in terms old names that refer to the latest interface 1331 * version as that reduces the required changes in the consumers to those 1332 * that are functionally necessary to accommodate a new interface version. 1333 */ 1334 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 1335 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 1336 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 1337 1338 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 1339 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 1340 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 1341 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 1342 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 1343 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 1344 #else 1345 /* 1346 * When building out-of-tree code that is written for the old interface, 1347 * such as may exist in ports for example, resolve the old struct tags and 1348 * ioctl command names to the v0 versions. 1349 */ 1350 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 1351 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 1352 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 1353 1354 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 1355 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 1356 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 1357 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 1358 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 1359 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 1360 #endif /* PFIOC_USE_LATEST */ 1361 #endif /* _KERNEL */ 1362 1363 #ifdef _KERNEL 1364 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 1365 struct pf_srchash { 1366 struct pf_ksrc_node_list nodes; 1367 struct mtx lock; 1368 }; 1369 1370 struct pf_keyhash { 1371 LIST_HEAD(, pf_state_key) keys; 1372 struct mtx lock; 1373 }; 1374 1375 struct pf_idhash { 1376 LIST_HEAD(, pf_state) states; 1377 struct mtx lock; 1378 }; 1379 1380 extern u_long pf_hashmask; 1381 extern u_long pf_srchashmask; 1382 #define PF_HASHSIZ (131072) 1383 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 1384 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1385 VNET_DECLARE(struct pf_idhash *, pf_idhash); 1386 #define V_pf_keyhash VNET(pf_keyhash) 1387 #define V_pf_idhash VNET(pf_idhash) 1388 VNET_DECLARE(struct pf_srchash *, pf_srchash); 1389 #define V_pf_srchash VNET(pf_srchash) 1390 1391 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1)) 1392 1393 VNET_DECLARE(void *, pf_swi_cookie); 1394 #define V_pf_swi_cookie VNET(pf_swi_cookie) 1395 VNET_DECLARE(struct intr_event *, pf_swi_ie); 1396 #define V_pf_swi_ie VNET(pf_swi_ie) 1397 1398 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1399 #define V_pf_stateid VNET(pf_stateid) 1400 1401 TAILQ_HEAD(pf_altqqueue, pf_altq); 1402 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 1403 #define V_pf_altqs VNET(pf_altqs) 1404 VNET_DECLARE(struct pf_kpalist, pf_pabuf); 1405 #define V_pf_pabuf VNET(pf_pabuf) 1406 1407 VNET_DECLARE(u_int32_t, ticket_altqs_active); 1408 #define V_ticket_altqs_active VNET(ticket_altqs_active) 1409 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1410 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1411 VNET_DECLARE(int, altqs_inactive_open); 1412 #define V_altqs_inactive_open VNET(altqs_inactive_open) 1413 VNET_DECLARE(u_int32_t, ticket_pabuf); 1414 #define V_ticket_pabuf VNET(ticket_pabuf) 1415 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1416 #define V_pf_altqs_active VNET(pf_altqs_active) 1417 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 1418 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 1419 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1420 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1421 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 1422 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 1423 1424 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 1425 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1426 1427 void pf_initialize(void); 1428 void pf_mtag_initialize(void); 1429 void pf_mtag_cleanup(void); 1430 void pf_cleanup(void); 1431 1432 struct pf_mtag *pf_get_mtag(struct mbuf *); 1433 1434 extern void pf_calc_skip_steps(struct pf_krulequeue *); 1435 #ifdef ALTQ 1436 extern void pf_altq_ifnet_event(struct ifnet *, int); 1437 #endif 1438 VNET_DECLARE(uma_zone_t, pf_state_z); 1439 #define V_pf_state_z VNET(pf_state_z) 1440 VNET_DECLARE(uma_zone_t, pf_state_key_z); 1441 #define V_pf_state_key_z VNET(pf_state_key_z) 1442 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1443 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1444 1445 extern void pf_purge_thread(void *); 1446 extern void pf_unload_vnet_purge(void); 1447 extern void pf_intr(void *); 1448 extern void pf_purge_expired_src_nodes(void); 1449 1450 extern int pf_unlink_state(struct pf_state *, u_int); 1451 #define PF_ENTER_LOCKED 0x00000001 1452 #define PF_RETURN_LOCKED 0x00000002 1453 extern int pf_state_insert(struct pfi_kkif *, 1454 struct pf_state_key *, 1455 struct pf_state_key *, 1456 struct pf_state *); 1457 extern void pf_free_state(struct pf_state *); 1458 1459 static __inline void 1460 pf_ref_state(struct pf_state *s) 1461 { 1462 1463 refcount_acquire(&s->refs); 1464 } 1465 1466 static __inline int 1467 pf_release_state(struct pf_state *s) 1468 { 1469 1470 if (refcount_release(&s->refs)) { 1471 pf_free_state(s); 1472 return (1); 1473 } else 1474 return (0); 1475 } 1476 1477 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t); 1478 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1479 u_int, int *); 1480 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 1481 struct pf_krule *, sa_family_t, int); 1482 extern void pf_unlink_src_node(struct pf_ksrc_node *); 1483 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 1484 extern void pf_print_state(struct pf_state *); 1485 extern void pf_print_flags(u_int8_t); 1486 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1487 u_int8_t); 1488 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 1489 u_int16_t, u_int16_t, u_int8_t); 1490 1491 VNET_DECLARE(struct ifnet *, sync_ifp); 1492 #define V_sync_ifp VNET(sync_ifp); 1493 VNET_DECLARE(struct pf_krule, pf_default_rule); 1494 #define V_pf_default_rule VNET(pf_default_rule) 1495 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1496 u_int8_t); 1497 void pf_free_rule(struct pf_krule *); 1498 1499 #ifdef INET 1500 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1501 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *, 1502 struct pf_pdesc *); 1503 #endif /* INET */ 1504 1505 #ifdef INET6 1506 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1507 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *, 1508 struct pf_pdesc *); 1509 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1510 struct pf_addr *, struct pf_addr *, u_int8_t); 1511 void pf_addr_inc(struct pf_addr *, sa_family_t); 1512 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *); 1513 #endif /* INET6 */ 1514 1515 u_int32_t pf_new_isn(struct pf_state *); 1516 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1517 sa_family_t); 1518 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1519 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 1520 u_int8_t); 1521 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 1522 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t, 1523 bool, u_int8_t); 1524 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t, 1525 bool, u_int8_t); 1526 void pf_send_deferred_syn(struct pf_state *); 1527 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1528 struct pf_addr *, sa_family_t); 1529 int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1530 struct pf_addr *, sa_family_t); 1531 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1532 1533 void pf_normalize_init(void); 1534 void pf_normalize_cleanup(void); 1535 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *, 1536 struct pf_pdesc *); 1537 void pf_normalize_tcp_cleanup(struct pf_state *); 1538 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1539 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1540 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1541 u_short *, struct tcphdr *, struct pf_state *, 1542 struct pf_state_peer *, struct pf_state_peer *, int *); 1543 u_int32_t 1544 pf_state_expires(const struct pf_state *); 1545 void pf_purge_expired_fragments(void); 1546 void pf_purge_fragments(uint32_t); 1547 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 1548 int); 1549 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 1550 struct pf_state_key *pf_alloc_state_key(int); 1551 void pfr_initialize(void); 1552 void pfr_cleanup(void); 1553 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1554 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1555 u_int64_t, int, int, int); 1556 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 1557 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1558 struct pfr_ktable * 1559 pfr_attach_table(struct pf_kruleset *, char *); 1560 void pfr_detach_table(struct pfr_ktable *); 1561 int pfr_clr_tables(struct pfr_table *, int *, int); 1562 int pfr_add_tables(struct pfr_table *, int, int *, int); 1563 int pfr_del_tables(struct pfr_table *, int, int *, int); 1564 int pfr_table_count(struct pfr_table *, int); 1565 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1566 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1567 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1568 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1569 int pfr_clr_addrs(struct pfr_table *, int *, int); 1570 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1571 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1572 int); 1573 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1574 int); 1575 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1576 int *, int *, int *, int, u_int32_t); 1577 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1578 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1579 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1580 int); 1581 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1582 int); 1583 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1584 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1585 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1586 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1587 int *, u_int32_t, int); 1588 1589 MALLOC_DECLARE(PFI_MTYPE); 1590 VNET_DECLARE(struct pfi_kkif *, pfi_all); 1591 #define V_pfi_all VNET(pfi_all) 1592 1593 void pfi_initialize(void); 1594 void pfi_initialize_vnet(void); 1595 void pfi_cleanup(void); 1596 void pfi_cleanup_vnet(void); 1597 void pfi_kkif_ref(struct pfi_kkif *); 1598 void pfi_kkif_unref(struct pfi_kkif *); 1599 struct pfi_kkif *pfi_kkif_find(const char *); 1600 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 1601 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 1602 void pfi_kkif_purge(void); 1603 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1604 sa_family_t); 1605 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1606 void pfi_dynaddr_remove(struct pfi_dynaddr *); 1607 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1608 void pfi_update_status(const char *, struct pf_status *); 1609 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 1610 int pfi_set_flags(const char *, int); 1611 int pfi_clear_flags(const char *, int); 1612 1613 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 1614 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 1615 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 1616 sa_family_t); 1617 void pf_qid2qname(u_int32_t, char *); 1618 1619 VNET_DECLARE(struct pf_kstatus, pf_status); 1620 #define V_pf_status VNET(pf_status) 1621 1622 struct pf_limit { 1623 uma_zone_t zone; 1624 u_int limit; 1625 }; 1626 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 1627 #define V_pf_limits VNET(pf_limits) 1628 1629 #endif /* _KERNEL */ 1630 1631 #ifdef _KERNEL 1632 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 1633 #define V_pf_anchors VNET(pf_anchors) 1634 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 1635 #define V_pf_main_anchor VNET(pf_main_anchor) 1636 #define pf_main_ruleset V_pf_main_anchor.ruleset 1637 1638 void pf_init_kruleset(struct pf_kruleset *); 1639 int pf_kanchor_setup(struct pf_krule *, 1640 const struct pf_kruleset *, const char *); 1641 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 1642 const struct pf_krule *, nvlist_t *); 1643 int pf_kanchor_copyout(const struct pf_kruleset *, 1644 const struct pf_krule *, struct pfioc_rule *); 1645 void pf_kanchor_remove(struct pf_krule *); 1646 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 1647 struct pf_kruleset *pf_find_kruleset(const char *); 1648 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 1649 void pf_rs_initialize(void); 1650 1651 void pf_krule_free(struct pf_krule *); 1652 #endif 1653 1654 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1655 int pf_osfp_add(struct pf_osfp_ioctl *); 1656 #ifdef _KERNEL 1657 struct pf_osfp_enlist * 1658 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1659 const struct tcphdr *); 1660 #endif /* _KERNEL */ 1661 void pf_osfp_flush(void); 1662 int pf_osfp_get(struct pf_osfp_ioctl *); 1663 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1664 1665 #ifdef _KERNEL 1666 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 1667 1668 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *, 1669 struct pf_kruleset **, int, struct pf_krule **, 1670 struct pf_krule **, int *); 1671 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *, 1672 struct pf_kruleset **, int, struct pf_krule **, 1673 struct pf_krule **, int *); 1674 1675 int pf_map_addr(u_int8_t, struct pf_krule *, 1676 struct pf_addr *, struct pf_addr *, 1677 struct pf_addr *, struct pf_ksrc_node **); 1678 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 1679 int, int, struct pfi_kkif *, struct pf_ksrc_node **, 1680 struct pf_state_key **, struct pf_state_key **, 1681 struct pf_addr *, struct pf_addr *, 1682 uint16_t, uint16_t, struct pf_kanchor_stackframe *); 1683 1684 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 1685 struct pf_addr *, u_int16_t, u_int16_t); 1686 struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 1687 1688 struct pfi_kkif *pf_kkif_create(int); 1689 void pf_kkif_free(struct pfi_kkif *); 1690 void pf_kkif_zero(struct pfi_kkif *); 1691 #endif /* _KERNEL */ 1692 1693 #endif /* _NET_PFVAR_H_ */ 1694