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/lock.h> 48 #include <sys/rmlock.h> 49 #include <sys/tree.h> 50 #include <vm/uma.h> 51 52 #include <net/radix.h> 53 #include <netinet/in.h> 54 55 #include <netpfil/pf/pf.h> 56 #include <netpfil/pf/pf_altq.h> 57 #include <netpfil/pf/pf_mtag.h> 58 59 #ifdef _KERNEL 60 61 SYSCTL_DECL(_net_pf); 62 MALLOC_DECLARE(M_PFHASH); 63 64 SDT_PROVIDER_DECLARE(pf); 65 66 struct pfi_dynaddr { 67 TAILQ_ENTRY(pfi_dynaddr) entry; 68 struct pf_addr pfid_addr4; 69 struct pf_addr pfid_mask4; 70 struct pf_addr pfid_addr6; 71 struct pf_addr pfid_mask6; 72 struct pfr_ktable *pfid_kt; 73 struct pfi_kkif *pfid_kif; 74 int pfid_net; /* mask or 128 */ 75 int pfid_acnt4; /* address count IPv4 */ 76 int pfid_acnt6; /* address count IPv6 */ 77 sa_family_t pfid_af; /* rule af */ 78 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 79 }; 80 81 /* 82 * Address manipulation macros 83 */ 84 #define HTONL(x) (x) = htonl((__uint32_t)(x)) 85 #define HTONS(x) (x) = htons((__uint16_t)(x)) 86 #define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 87 #define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 88 89 #define PF_NAME "pf" 90 91 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 92 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 93 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 94 95 #define PF_STATE_LOCK(s) \ 96 do { \ 97 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 98 PF_HASHROW_LOCK(_ih); \ 99 } while (0) 100 101 #define PF_STATE_UNLOCK(s) \ 102 do { \ 103 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \ 104 PF_HASHROW_UNLOCK(_ih); \ 105 } while (0) 106 107 #ifdef INVARIANTS 108 #define PF_STATE_LOCK_ASSERT(s) \ 109 do { \ 110 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 111 PF_HASHROW_ASSERT(_ih); \ 112 } while (0) 113 #else /* !INVARIANTS */ 114 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 115 #endif /* INVARIANTS */ 116 117 extern struct mtx pf_unlnkdrules_mtx; 118 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 119 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 120 121 extern struct rmlock pf_rules_lock; 122 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 123 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker) 124 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker) 125 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock) 126 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock) 127 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED) 128 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED) 129 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED) 130 131 extern struct sx pf_end_lock; 132 133 #define PF_MODVER 1 134 #define PFLOG_MODVER 1 135 #define PFSYNC_MODVER 1 136 137 #define PFLOG_MINVER 1 138 #define PFLOG_PREFVER PFLOG_MODVER 139 #define PFLOG_MAXVER 1 140 #define PFSYNC_MINVER 1 141 #define PFSYNC_PREFVER PFSYNC_MODVER 142 #define PFSYNC_MAXVER 1 143 144 #ifdef INET 145 #ifndef INET6 146 #define PF_INET_ONLY 147 #endif /* ! INET6 */ 148 #endif /* INET */ 149 150 #ifdef INET6 151 #ifndef INET 152 #define PF_INET6_ONLY 153 #endif /* ! INET */ 154 #endif /* INET6 */ 155 156 #ifdef INET 157 #ifdef INET6 158 #define PF_INET_INET6 159 #endif /* INET6 */ 160 #endif /* INET */ 161 162 #else 163 164 #define PF_INET_INET6 165 166 #endif /* _KERNEL */ 167 168 /* Both IPv4 and IPv6 */ 169 #ifdef PF_INET_INET6 170 171 #define PF_AEQ(a, b, c) \ 172 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 173 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 174 (a)->addr32[2] == (b)->addr32[2] && \ 175 (a)->addr32[1] == (b)->addr32[1] && \ 176 (a)->addr32[0] == (b)->addr32[0])) \ 177 178 #define PF_ANEQ(a, b, c) \ 179 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 180 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 181 (a)->addr32[1] != (b)->addr32[1] || \ 182 (a)->addr32[2] != (b)->addr32[2] || \ 183 (a)->addr32[3] != (b)->addr32[3]))) \ 184 185 #define PF_AZERO(a, c) \ 186 ((c == AF_INET && !(a)->addr32[0]) || \ 187 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 188 !(a)->addr32[2] && !(a)->addr32[3] )) \ 189 190 #define PF_MATCHA(n, a, m, b, f) \ 191 pf_match_addr(n, a, m, b, f) 192 193 #define PF_ACPY(a, b, f) \ 194 pf_addrcpy(a, b, f) 195 196 #define PF_AINC(a, f) \ 197 pf_addr_inc(a, f) 198 199 #define PF_POOLMASK(a, b, c, d, f) \ 200 pf_poolmask(a, b, c, d, f) 201 202 #else 203 204 /* Just IPv6 */ 205 206 #ifdef PF_INET6_ONLY 207 208 #define PF_AEQ(a, b, c) \ 209 ((a)->addr32[3] == (b)->addr32[3] && \ 210 (a)->addr32[2] == (b)->addr32[2] && \ 211 (a)->addr32[1] == (b)->addr32[1] && \ 212 (a)->addr32[0] == (b)->addr32[0]) \ 213 214 #define PF_ANEQ(a, b, c) \ 215 ((a)->addr32[3] != (b)->addr32[3] || \ 216 (a)->addr32[2] != (b)->addr32[2] || \ 217 (a)->addr32[1] != (b)->addr32[1] || \ 218 (a)->addr32[0] != (b)->addr32[0]) \ 219 220 #define PF_AZERO(a, c) \ 221 (!(a)->addr32[0] && \ 222 !(a)->addr32[1] && \ 223 !(a)->addr32[2] && \ 224 !(a)->addr32[3] ) \ 225 226 #define PF_MATCHA(n, a, m, b, f) \ 227 pf_match_addr(n, a, m, b, f) 228 229 #define PF_ACPY(a, b, f) \ 230 pf_addrcpy(a, b, f) 231 232 #define PF_AINC(a, f) \ 233 pf_addr_inc(a, f) 234 235 #define PF_POOLMASK(a, b, c, d, f) \ 236 pf_poolmask(a, b, c, d, f) 237 238 #else 239 240 /* Just IPv4 */ 241 #ifdef PF_INET_ONLY 242 243 #define PF_AEQ(a, b, c) \ 244 ((a)->addr32[0] == (b)->addr32[0]) 245 246 #define PF_ANEQ(a, b, c) \ 247 ((a)->addr32[0] != (b)->addr32[0]) 248 249 #define PF_AZERO(a, c) \ 250 (!(a)->addr32[0]) 251 252 #define PF_MATCHA(n, a, m, b, f) \ 253 pf_match_addr(n, a, m, b, f) 254 255 #define PF_ACPY(a, b, f) \ 256 (a)->v4.s_addr = (b)->v4.s_addr 257 258 #define PF_AINC(a, f) \ 259 do { \ 260 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 261 } while (0) 262 263 #define PF_POOLMASK(a, b, c, d, f) \ 264 do { \ 265 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 266 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 267 } while (0) 268 269 #endif /* PF_INET_ONLY */ 270 #endif /* PF_INET6_ONLY */ 271 #endif /* PF_INET_INET6 */ 272 273 /* 274 * XXX callers not FIB-aware in our version of pf yet. 275 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 276 */ 277 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 278 ( \ 279 (((aw)->type == PF_ADDR_NOROUTE && \ 280 pf_routable((x), (af), NULL, (rtid))) || \ 281 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 282 pf_routable((x), (af), (ifp), (rtid))) || \ 283 ((aw)->type == PF_ADDR_TABLE && \ 284 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 285 ((aw)->type == PF_ADDR_DYNIFTL && \ 286 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 287 ((aw)->type == PF_ADDR_RANGE && \ 288 !pf_match_addr_range(&(aw)->v.a.addr, \ 289 &(aw)->v.a.mask, (x), (af))) || \ 290 ((aw)->type == PF_ADDR_ADDRMASK && \ 291 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 292 !PF_MATCHA(0, &(aw)->v.a.addr, \ 293 &(aw)->v.a.mask, (x), (af))))) != \ 294 (neg) \ 295 ) 296 297 #define PF_ALGNMNT(off) (((off) % 2) == 0) 298 299 #ifdef _KERNEL 300 301 struct pf_kpooladdr { 302 struct pf_addr_wrap addr; 303 TAILQ_ENTRY(pf_kpooladdr) entries; 304 char ifname[IFNAMSIZ]; 305 struct pfi_kkif *kif; 306 }; 307 308 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 309 310 struct pf_kpool { 311 struct pf_kpalist list; 312 struct pf_kpooladdr *cur; 313 struct pf_poolhashkey key; 314 struct pf_addr counter; 315 struct pf_mape_portset mape; 316 int tblidx; 317 u_int16_t proxy_port[2]; 318 u_int8_t opts; 319 }; 320 321 union pf_krule_ptr { 322 struct pf_krule *ptr; 323 u_int32_t nr; 324 }; 325 326 struct pf_krule { 327 struct pf_rule_addr src; 328 struct pf_rule_addr dst; 329 union pf_krule_ptr skip[PF_SKIP_COUNT]; 330 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 331 char ifname[IFNAMSIZ]; 332 char qname[PF_QNAME_SIZE]; 333 char pqname[PF_QNAME_SIZE]; 334 char tagname[PF_TAG_NAME_SIZE]; 335 char match_tagname[PF_TAG_NAME_SIZE]; 336 337 char overload_tblname[PF_TABLE_NAME_SIZE]; 338 339 TAILQ_ENTRY(pf_krule) entries; 340 struct pf_kpool rpool; 341 342 counter_u64_t evaluations; 343 counter_u64_t packets[2]; 344 counter_u64_t bytes[2]; 345 346 struct pfi_kkif *kif; 347 struct pf_kanchor *anchor; 348 struct pfr_ktable *overload_tbl; 349 350 pf_osfp_t os_fingerprint; 351 352 int rtableid; 353 u_int32_t timeout[PFTM_MAX]; 354 u_int32_t max_states; 355 u_int32_t max_src_nodes; 356 u_int32_t max_src_states; 357 u_int32_t max_src_conn; 358 struct { 359 u_int32_t limit; 360 u_int32_t seconds; 361 } max_src_conn_rate; 362 u_int32_t qid; 363 u_int32_t pqid; 364 u_int32_t nr; 365 u_int32_t prob; 366 uid_t cuid; 367 pid_t cpid; 368 369 counter_u64_t states_cur; 370 counter_u64_t states_tot; 371 counter_u64_t src_nodes; 372 373 u_int16_t return_icmp; 374 u_int16_t return_icmp6; 375 u_int16_t max_mss; 376 u_int16_t tag; 377 u_int16_t match_tag; 378 u_int16_t scrub_flags; 379 380 struct pf_rule_uid uid; 381 struct pf_rule_gid gid; 382 383 u_int32_t rule_flag; 384 uint32_t rule_ref; 385 u_int8_t action; 386 u_int8_t direction; 387 u_int8_t log; 388 u_int8_t logif; 389 u_int8_t quick; 390 u_int8_t ifnot; 391 u_int8_t match_tag_not; 392 u_int8_t natpass; 393 394 u_int8_t keep_state; 395 sa_family_t af; 396 u_int8_t proto; 397 u_int8_t type; 398 u_int8_t code; 399 u_int8_t flags; 400 u_int8_t flagset; 401 u_int8_t min_ttl; 402 u_int8_t allow_opts; 403 u_int8_t rt; 404 u_int8_t return_ttl; 405 u_int8_t tos; 406 u_int8_t set_tos; 407 u_int8_t anchor_relative; 408 u_int8_t anchor_wildcard; 409 410 u_int8_t flush; 411 u_int8_t prio; 412 u_int8_t set_prio[2]; 413 414 struct { 415 struct pf_addr addr; 416 u_int16_t port; 417 } divert; 418 }; 419 420 struct pf_ksrc_node { 421 LIST_ENTRY(pf_ksrc_node) entry; 422 struct pf_addr addr; 423 struct pf_addr raddr; 424 union pf_krule_ptr rule; 425 struct pfi_kkif *kif; 426 counter_u64_t bytes[2]; 427 counter_u64_t packets[2]; 428 u_int32_t states; 429 u_int32_t conn; 430 struct pf_threshold conn_rate; 431 u_int32_t creation; 432 u_int32_t expire; 433 sa_family_t af; 434 u_int8_t ruletype; 435 }; 436 #endif 437 438 struct pf_state_scrub { 439 struct timeval pfss_last; /* time received last packet */ 440 u_int32_t pfss_tsecr; /* last echoed timestamp */ 441 u_int32_t pfss_tsval; /* largest timestamp */ 442 u_int32_t pfss_tsval0; /* original timestamp */ 443 u_int16_t pfss_flags; 444 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 445 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 446 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 447 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 448 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 449 u_int8_t pfss_ttl; /* stashed TTL */ 450 u_int8_t pad; 451 u_int32_t pfss_ts_mod; /* timestamp modulation */ 452 }; 453 454 struct pf_state_host { 455 struct pf_addr addr; 456 u_int16_t port; 457 u_int16_t pad; 458 }; 459 460 struct pf_state_peer { 461 struct pf_state_scrub *scrub; /* state is scrubbed */ 462 u_int32_t seqlo; /* Max sequence number sent */ 463 u_int32_t seqhi; /* Max the other end ACKd + win */ 464 u_int32_t seqdiff; /* Sequence number modulator */ 465 u_int16_t max_win; /* largest window (pre scaling) */ 466 u_int16_t mss; /* Maximum segment size option */ 467 u_int8_t state; /* active state level */ 468 u_int8_t wscale; /* window scaling factor */ 469 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 470 u_int8_t pad[1]; 471 }; 472 473 /* Keep synced with struct pf_state_key. */ 474 struct pf_state_key_cmp { 475 struct pf_addr addr[2]; 476 u_int16_t port[2]; 477 sa_family_t af; 478 u_int8_t proto; 479 u_int8_t pad[2]; 480 }; 481 482 struct pf_state_key { 483 struct pf_addr addr[2]; 484 u_int16_t port[2]; 485 sa_family_t af; 486 u_int8_t proto; 487 u_int8_t pad[2]; 488 489 LIST_ENTRY(pf_state_key) entry; 490 TAILQ_HEAD(, pf_state) states[2]; 491 }; 492 493 /* Keep synced with struct pf_state. */ 494 struct pf_state_cmp { 495 u_int64_t id; 496 u_int32_t creatorid; 497 u_int8_t direction; 498 u_int8_t pad[3]; 499 }; 500 501 #define PFSTATE_ALLOWOPTS 0x01 502 #define PFSTATE_SLOPPY 0x02 503 /* was PFSTATE_PFLOW 0x04 */ 504 #define PFSTATE_NOSYNC 0x08 505 #define PFSTATE_ACK 0x10 506 #define PFSTATE_SETPRIO 0x0200 507 #define PFSTATE_SETMASK (PFSTATE_SETPRIO) 508 509 #ifdef _KERNEL 510 struct pf_state { 511 u_int64_t id; 512 u_int32_t creatorid; 513 u_int8_t direction; 514 u_int8_t pad[3]; 515 516 u_int refs; 517 TAILQ_ENTRY(pf_state) sync_list; 518 TAILQ_ENTRY(pf_state) key_list[2]; 519 LIST_ENTRY(pf_state) entry; 520 struct pf_state_peer src; 521 struct pf_state_peer dst; 522 union pf_krule_ptr rule; 523 union pf_krule_ptr anchor; 524 union pf_krule_ptr nat_rule; 525 struct pf_addr rt_addr; 526 struct pf_state_key *key[2]; /* addresses stack and wire */ 527 struct pfi_kkif *kif; 528 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 529 struct pfi_kkif *rt_kif; 530 struct pf_ksrc_node *src_node; 531 struct pf_ksrc_node *nat_src_node; 532 counter_u64_t packets[2]; 533 counter_u64_t bytes[2]; 534 u_int32_t creation; 535 u_int32_t expire; 536 u_int32_t pfsync_time; 537 u_int16_t tag; 538 u_int8_t log; 539 u_int8_t state_flags; 540 u_int8_t timeout; 541 u_int8_t sync_state; /* PFSYNC_S_x */ 542 543 /* XXX */ 544 u_int8_t sync_updates; 545 u_int8_t _tail[3]; 546 }; 547 #endif 548 549 /* 550 * Unified state structures for pulling states out of the kernel 551 * used by pfsync(4) and the pf(4) ioctl. 552 */ 553 struct pfsync_state_scrub { 554 u_int16_t pfss_flags; 555 u_int8_t pfss_ttl; /* stashed TTL */ 556 #define PFSYNC_SCRUB_FLAG_VALID 0x01 557 u_int8_t scrub_flag; 558 u_int32_t pfss_ts_mod; /* timestamp modulation */ 559 } __packed; 560 561 struct pfsync_state_peer { 562 struct pfsync_state_scrub scrub; /* state is scrubbed */ 563 u_int32_t seqlo; /* Max sequence number sent */ 564 u_int32_t seqhi; /* Max the other end ACKd + win */ 565 u_int32_t seqdiff; /* Sequence number modulator */ 566 u_int16_t max_win; /* largest window (pre scaling) */ 567 u_int16_t mss; /* Maximum segment size option */ 568 u_int8_t state; /* active state level */ 569 u_int8_t wscale; /* window scaling factor */ 570 u_int8_t pad[6]; 571 } __packed; 572 573 struct pfsync_state_key { 574 struct pf_addr addr[2]; 575 u_int16_t port[2]; 576 }; 577 578 struct pfsync_state { 579 u_int64_t id; 580 char ifname[IFNAMSIZ]; 581 struct pfsync_state_key key[2]; 582 struct pfsync_state_peer src; 583 struct pfsync_state_peer dst; 584 struct pf_addr rt_addr; 585 u_int32_t rule; 586 u_int32_t anchor; 587 u_int32_t nat_rule; 588 u_int32_t creation; 589 u_int32_t expire; 590 u_int32_t packets[2][2]; 591 u_int32_t bytes[2][2]; 592 u_int32_t creatorid; 593 sa_family_t af; 594 u_int8_t proto; 595 u_int8_t direction; 596 u_int8_t __spare[2]; 597 u_int8_t log; 598 u_int8_t state_flags; 599 u_int8_t timeout; 600 u_int8_t sync_flags; 601 u_int8_t updates; 602 } __packed; 603 604 #ifdef _KERNEL 605 /* pfsync */ 606 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 607 typedef void pfsync_insert_state_t(struct pf_state *); 608 typedef void pfsync_update_state_t(struct pf_state *); 609 typedef void pfsync_delete_state_t(struct pf_state *); 610 typedef void pfsync_clear_states_t(u_int32_t, const char *); 611 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 612 typedef void pfsync_detach_ifnet_t(struct ifnet *); 613 614 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 615 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 616 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 617 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 618 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 619 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 620 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 621 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 622 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 623 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 624 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 625 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 626 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 627 628 void pfsync_state_export(struct pfsync_state *, 629 struct pf_state *); 630 631 /* pflog */ 632 struct pf_kruleset; 633 struct pf_pdesc; 634 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t, 635 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *, 636 struct pf_kruleset *, struct pf_pdesc *, int); 637 extern pflog_packet_t *pflog_packet_ptr; 638 639 #endif /* _KERNEL */ 640 641 #define PFSYNC_FLAG_SRCNODE 0x04 642 #define PFSYNC_FLAG_NATSRCNODE 0x08 643 644 /* for copies to/from network byte order */ 645 /* ioctl interface also uses network byte order */ 646 #define pf_state_peer_hton(s,d) do { \ 647 (d)->seqlo = htonl((s)->seqlo); \ 648 (d)->seqhi = htonl((s)->seqhi); \ 649 (d)->seqdiff = htonl((s)->seqdiff); \ 650 (d)->max_win = htons((s)->max_win); \ 651 (d)->mss = htons((s)->mss); \ 652 (d)->state = (s)->state; \ 653 (d)->wscale = (s)->wscale; \ 654 if ((s)->scrub) { \ 655 (d)->scrub.pfss_flags = \ 656 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 657 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 658 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 659 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 660 } \ 661 } while (0) 662 663 #define pf_state_peer_ntoh(s,d) do { \ 664 (d)->seqlo = ntohl((s)->seqlo); \ 665 (d)->seqhi = ntohl((s)->seqhi); \ 666 (d)->seqdiff = ntohl((s)->seqdiff); \ 667 (d)->max_win = ntohs((s)->max_win); \ 668 (d)->mss = ntohs((s)->mss); \ 669 (d)->state = (s)->state; \ 670 (d)->wscale = (s)->wscale; \ 671 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 672 (d)->scrub != NULL) { \ 673 (d)->scrub->pfss_flags = \ 674 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 675 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 676 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 677 } \ 678 } while (0) 679 680 #define pf_state_counter_hton(s,d) do { \ 681 d[0] = htonl((s>>32)&0xffffffff); \ 682 d[1] = htonl(s&0xffffffff); \ 683 } while (0) 684 685 #define pf_state_counter_from_pfsync(s) \ 686 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 687 688 #define pf_state_counter_ntoh(s,d) do { \ 689 d = ntohl(s[0]); \ 690 d = d<<32; \ 691 d += ntohl(s[1]); \ 692 } while (0) 693 694 TAILQ_HEAD(pf_krulequeue, pf_krule); 695 696 struct pf_kanchor; 697 698 struct pf_kruleset { 699 struct { 700 struct pf_krulequeue queues[2]; 701 struct { 702 struct pf_krulequeue *ptr; 703 struct pf_krule **ptr_array; 704 u_int32_t rcount; 705 u_int32_t ticket; 706 int open; 707 } active, inactive; 708 } rules[PF_RULESET_MAX]; 709 struct pf_kanchor *anchor; 710 u_int32_t tticket; 711 int tables; 712 int topen; 713 }; 714 715 RB_HEAD(pf_kanchor_global, pf_kanchor); 716 RB_HEAD(pf_kanchor_node, pf_kanchor); 717 struct pf_kanchor { 718 RB_ENTRY(pf_kanchor) entry_global; 719 RB_ENTRY(pf_kanchor) entry_node; 720 struct pf_kanchor *parent; 721 struct pf_kanchor_node children; 722 char name[PF_ANCHOR_NAME_SIZE]; 723 char path[MAXPATHLEN]; 724 struct pf_kruleset ruleset; 725 int refcnt; /* anchor rules */ 726 int match; /* XXX: used for pfctl black magic */ 727 }; 728 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 729 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 730 731 #define PF_RESERVED_ANCHOR "_pf" 732 733 #define PFR_TFLAG_PERSIST 0x00000001 734 #define PFR_TFLAG_CONST 0x00000002 735 #define PFR_TFLAG_ACTIVE 0x00000004 736 #define PFR_TFLAG_INACTIVE 0x00000008 737 #define PFR_TFLAG_REFERENCED 0x00000010 738 #define PFR_TFLAG_REFDANCHOR 0x00000020 739 #define PFR_TFLAG_COUNTERS 0x00000040 740 /* Adjust masks below when adding flags. */ 741 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 742 PFR_TFLAG_CONST | \ 743 PFR_TFLAG_COUNTERS) 744 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 745 PFR_TFLAG_INACTIVE | \ 746 PFR_TFLAG_REFERENCED | \ 747 PFR_TFLAG_REFDANCHOR) 748 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 749 PFR_TFLAG_CONST | \ 750 PFR_TFLAG_ACTIVE | \ 751 PFR_TFLAG_INACTIVE | \ 752 PFR_TFLAG_REFERENCED | \ 753 PFR_TFLAG_REFDANCHOR | \ 754 PFR_TFLAG_COUNTERS) 755 756 struct pf_kanchor_stackframe; 757 758 struct pfr_table { 759 char pfrt_anchor[MAXPATHLEN]; 760 char pfrt_name[PF_TABLE_NAME_SIZE]; 761 u_int32_t pfrt_flags; 762 u_int8_t pfrt_fback; 763 }; 764 765 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 766 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 767 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 768 769 struct pfr_addr { 770 union { 771 struct in_addr _pfra_ip4addr; 772 struct in6_addr _pfra_ip6addr; 773 } pfra_u; 774 u_int8_t pfra_af; 775 u_int8_t pfra_net; 776 u_int8_t pfra_not; 777 u_int8_t pfra_fback; 778 }; 779 #define pfra_ip4addr pfra_u._pfra_ip4addr 780 #define pfra_ip6addr pfra_u._pfra_ip6addr 781 782 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 783 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 784 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 785 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 786 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 787 788 struct pfr_astats { 789 struct pfr_addr pfras_a; 790 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 791 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 792 long pfras_tzero; 793 }; 794 795 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 796 797 struct pfr_tstats { 798 struct pfr_table pfrts_t; 799 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 800 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 801 u_int64_t pfrts_match; 802 u_int64_t pfrts_nomatch; 803 long pfrts_tzero; 804 int pfrts_cnt; 805 int pfrts_refcnt[PFR_REFCNT_MAX]; 806 }; 807 808 struct pfr_ktstats { 809 struct pfr_table pfrts_t; 810 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 811 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 812 counter_u64_t pfrkts_match; 813 counter_u64_t pfrkts_nomatch; 814 long pfrkts_tzero; 815 int pfrkts_cnt; 816 int pfrkts_refcnt[PFR_REFCNT_MAX]; 817 }; 818 #define pfrts_name pfrts_t.pfrt_name 819 #define pfrts_flags pfrts_t.pfrt_flags 820 821 #ifndef _SOCKADDR_UNION_DEFINED 822 #define _SOCKADDR_UNION_DEFINED 823 union sockaddr_union { 824 struct sockaddr sa; 825 struct sockaddr_in sin; 826 struct sockaddr_in6 sin6; 827 }; 828 #endif /* _SOCKADDR_UNION_DEFINED */ 829 830 struct pfr_kcounters { 831 counter_u64_t pfrkc_counters; 832 long pfrkc_tzero; 833 }; 834 #define pfr_kentry_counter(kc, dir, op, t) \ 835 ((kc)->pfrkc_counters + \ 836 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 837 838 #ifdef _KERNEL 839 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 840 struct pfr_kentry { 841 struct radix_node pfrke_node[2]; 842 union sockaddr_union pfrke_sa; 843 SLIST_ENTRY(pfr_kentry) pfrke_workq; 844 struct pfr_kcounters pfrke_counters; 845 u_int8_t pfrke_af; 846 u_int8_t pfrke_net; 847 u_int8_t pfrke_not; 848 u_int8_t pfrke_mark; 849 }; 850 851 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 852 RB_HEAD(pfr_ktablehead, pfr_ktable); 853 struct pfr_ktable { 854 struct pfr_ktstats pfrkt_kts; 855 RB_ENTRY(pfr_ktable) pfrkt_tree; 856 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 857 struct radix_node_head *pfrkt_ip4; 858 struct radix_node_head *pfrkt_ip6; 859 struct pfr_ktable *pfrkt_shadow; 860 struct pfr_ktable *pfrkt_root; 861 struct pf_kruleset *pfrkt_rs; 862 long pfrkt_larg; 863 int pfrkt_nflags; 864 }; 865 #define pfrkt_t pfrkt_kts.pfrts_t 866 #define pfrkt_name pfrkt_t.pfrt_name 867 #define pfrkt_anchor pfrkt_t.pfrt_anchor 868 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 869 #define pfrkt_flags pfrkt_t.pfrt_flags 870 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 871 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 872 #define pfrkt_packets pfrkt_kts.pfrkts_packets 873 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 874 #define pfrkt_match pfrkt_kts.pfrkts_match 875 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 876 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 877 #endif 878 879 #ifdef _KERNEL 880 struct pfi_kkif { 881 char pfik_name[IFNAMSIZ]; 882 union { 883 RB_ENTRY(pfi_kkif) _pfik_tree; 884 LIST_ENTRY(pfi_kkif) _pfik_list; 885 } _pfik_glue; 886 #define pfik_tree _pfik_glue._pfik_tree 887 #define pfik_list _pfik_glue._pfik_list 888 counter_u64_t pfik_packets[2][2][2]; 889 counter_u64_t pfik_bytes[2][2][2]; 890 u_int32_t pfik_tzero; 891 u_int pfik_flags; 892 struct ifnet *pfik_ifp; 893 struct ifg_group *pfik_group; 894 u_int pfik_rulerefs; 895 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 896 }; 897 #endif 898 899 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 900 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 901 902 #ifdef _KERNEL 903 struct pf_pdesc { 904 struct { 905 int done; 906 uid_t uid; 907 gid_t gid; 908 } lookup; 909 u_int64_t tot_len; /* Make Mickey money */ 910 union { 911 struct tcphdr *tcp; 912 struct udphdr *udp; 913 struct icmp *icmp; 914 #ifdef INET6 915 struct icmp6_hdr *icmp6; 916 #endif /* INET6 */ 917 void *any; 918 } hdr; 919 920 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */ 921 struct pf_addr *src; /* src address */ 922 struct pf_addr *dst; /* dst address */ 923 u_int16_t *sport; 924 u_int16_t *dport; 925 struct pf_mtag *pf_mtag; 926 927 u_int32_t p_len; /* total length of payload */ 928 929 u_int16_t *ip_sum; 930 u_int16_t *proto_sum; 931 u_int16_t flags; /* Let SCRUB trigger behavior in 932 * state code. Easier than tags */ 933 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 934 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 935 sa_family_t af; 936 u_int8_t proto; 937 u_int8_t tos; 938 u_int8_t dir; /* direction */ 939 u_int8_t sidx; /* key index for source */ 940 u_int8_t didx; /* key index for destination */ 941 }; 942 #endif 943 944 /* flags for RDR options */ 945 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 946 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 947 948 /* UDP state enumeration */ 949 #define PFUDPS_NO_TRAFFIC 0 950 #define PFUDPS_SINGLE 1 951 #define PFUDPS_MULTIPLE 2 952 953 #define PFUDPS_NSTATES 3 /* number of state levels */ 954 955 #define PFUDPS_NAMES { \ 956 "NO_TRAFFIC", \ 957 "SINGLE", \ 958 "MULTIPLE", \ 959 NULL \ 960 } 961 962 /* Other protocol state enumeration */ 963 #define PFOTHERS_NO_TRAFFIC 0 964 #define PFOTHERS_SINGLE 1 965 #define PFOTHERS_MULTIPLE 2 966 967 #define PFOTHERS_NSTATES 3 /* number of state levels */ 968 969 #define PFOTHERS_NAMES { \ 970 "NO_TRAFFIC", \ 971 "SINGLE", \ 972 "MULTIPLE", \ 973 NULL \ 974 } 975 976 #define ACTION_SET(a, x) \ 977 do { \ 978 if ((a) != NULL) \ 979 *(a) = (x); \ 980 } while (0) 981 982 #define REASON_SET(a, x) \ 983 do { \ 984 if ((a) != NULL) \ 985 *(a) = (x); \ 986 if (x < PFRES_MAX) \ 987 counter_u64_add(V_pf_status.counters[x], 1); \ 988 } while (0) 989 990 struct pf_kstatus { 991 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 992 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */ 993 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */ 994 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 995 uint32_t states; 996 uint32_t src_nodes; 997 uint32_t running; 998 uint32_t since; 999 uint32_t debug; 1000 uint32_t hostid; 1001 char ifname[IFNAMSIZ]; 1002 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1003 bool keep_counters; 1004 }; 1005 1006 struct pf_divert { 1007 union { 1008 struct in_addr ipv4; 1009 struct in6_addr ipv6; 1010 } addr; 1011 u_int16_t port; 1012 }; 1013 1014 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1015 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1016 1017 /* 1018 * Limit the length of the fragment queue traversal. Remember 1019 * search entry points based on the fragment offset. 1020 */ 1021 #define PF_FRAG_ENTRY_POINTS 16 1022 1023 /* 1024 * The number of entries in the fragment queue must be limited 1025 * to avoid DoS by linear seaching. Instead of a global limit, 1026 * use a limit per entry point. For large packets these sum up. 1027 */ 1028 #define PF_FRAG_ENTRY_LIMIT 64 1029 1030 /* 1031 * ioctl parameter structures 1032 */ 1033 1034 struct pfioc_pooladdr { 1035 u_int32_t action; 1036 u_int32_t ticket; 1037 u_int32_t nr; 1038 u_int32_t r_num; 1039 u_int8_t r_action; 1040 u_int8_t r_last; 1041 u_int8_t af; 1042 char anchor[MAXPATHLEN]; 1043 struct pf_pooladdr addr; 1044 }; 1045 1046 struct pfioc_rule { 1047 u_int32_t action; 1048 u_int32_t ticket; 1049 u_int32_t pool_ticket; 1050 u_int32_t nr; 1051 char anchor[MAXPATHLEN]; 1052 char anchor_call[MAXPATHLEN]; 1053 struct pf_rule rule; 1054 }; 1055 1056 struct pfioc_natlook { 1057 struct pf_addr saddr; 1058 struct pf_addr daddr; 1059 struct pf_addr rsaddr; 1060 struct pf_addr rdaddr; 1061 u_int16_t sport; 1062 u_int16_t dport; 1063 u_int16_t rsport; 1064 u_int16_t rdport; 1065 sa_family_t af; 1066 u_int8_t proto; 1067 u_int8_t direction; 1068 }; 1069 1070 struct pfioc_state { 1071 struct pfsync_state state; 1072 }; 1073 1074 struct pfioc_src_node_kill { 1075 sa_family_t psnk_af; 1076 struct pf_rule_addr psnk_src; 1077 struct pf_rule_addr psnk_dst; 1078 u_int psnk_killed; 1079 }; 1080 1081 #ifdef _KERNEL 1082 struct pf_kstate_kill { 1083 struct pf_state_cmp psk_pfcmp; 1084 sa_family_t psk_af; 1085 int psk_proto; 1086 struct pf_rule_addr psk_src; 1087 struct pf_rule_addr psk_dst; 1088 struct pf_rule_addr psk_rt_addr; 1089 char psk_ifname[IFNAMSIZ]; 1090 char psk_label[PF_RULE_LABEL_SIZE]; 1091 u_int psk_killed; 1092 bool psk_kill_match; 1093 }; 1094 #endif 1095 1096 struct pfioc_state_kill { 1097 struct pf_state_cmp psk_pfcmp; 1098 sa_family_t psk_af; 1099 int psk_proto; 1100 struct pf_rule_addr psk_src; 1101 struct pf_rule_addr psk_dst; 1102 char psk_ifname[IFNAMSIZ]; 1103 char psk_label[PF_RULE_LABEL_SIZE]; 1104 u_int psk_killed; 1105 }; 1106 1107 struct pfioc_states { 1108 int ps_len; 1109 union { 1110 caddr_t psu_buf; 1111 struct pfsync_state *psu_states; 1112 } ps_u; 1113 #define ps_buf ps_u.psu_buf 1114 #define ps_states ps_u.psu_states 1115 }; 1116 1117 struct pfioc_src_nodes { 1118 int psn_len; 1119 union { 1120 caddr_t psu_buf; 1121 struct pf_src_node *psu_src_nodes; 1122 } psn_u; 1123 #define psn_buf psn_u.psu_buf 1124 #define psn_src_nodes psn_u.psu_src_nodes 1125 }; 1126 1127 struct pfioc_if { 1128 char ifname[IFNAMSIZ]; 1129 }; 1130 1131 struct pfioc_tm { 1132 int timeout; 1133 int seconds; 1134 }; 1135 1136 struct pfioc_limit { 1137 int index; 1138 unsigned limit; 1139 }; 1140 1141 struct pfioc_altq_v0 { 1142 u_int32_t action; 1143 u_int32_t ticket; 1144 u_int32_t nr; 1145 struct pf_altq_v0 altq; 1146 }; 1147 1148 struct pfioc_altq_v1 { 1149 u_int32_t action; 1150 u_int32_t ticket; 1151 u_int32_t nr; 1152 /* 1153 * Placed here so code that only uses the above parameters can be 1154 * written entirely in terms of the v0 or v1 type. 1155 */ 1156 u_int32_t version; 1157 struct pf_altq_v1 altq; 1158 }; 1159 1160 /* 1161 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1162 * the latest version of struct pf_altq_vX as it has that struct as a 1163 * member. 1164 */ 1165 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1166 1167 struct pfioc_qstats_v0 { 1168 u_int32_t ticket; 1169 u_int32_t nr; 1170 void *buf; 1171 int nbytes; 1172 u_int8_t scheduler; 1173 }; 1174 1175 struct pfioc_qstats_v1 { 1176 u_int32_t ticket; 1177 u_int32_t nr; 1178 void *buf; 1179 int nbytes; 1180 u_int8_t scheduler; 1181 /* 1182 * Placed here so code that only uses the above parameters can be 1183 * written entirely in terms of the v0 or v1 type. 1184 */ 1185 u_int32_t version; /* Requested version of stats struct */ 1186 }; 1187 1188 /* Latest version of struct pfioc_qstats_vX */ 1189 #define PFIOC_QSTATS_VERSION 1 1190 1191 struct pfioc_ruleset { 1192 u_int32_t nr; 1193 char path[MAXPATHLEN]; 1194 char name[PF_ANCHOR_NAME_SIZE]; 1195 }; 1196 1197 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1198 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1199 struct pfioc_trans { 1200 int size; /* number of elements */ 1201 int esize; /* size of each element in bytes */ 1202 struct pfioc_trans_e { 1203 int rs_num; 1204 char anchor[MAXPATHLEN]; 1205 u_int32_t ticket; 1206 } *array; 1207 }; 1208 1209 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1210 #define PFR_FLAG_DUMMY 0x00000002 1211 #define PFR_FLAG_FEEDBACK 0x00000004 1212 #define PFR_FLAG_CLSTATS 0x00000008 1213 #define PFR_FLAG_ADDRSTOO 0x00000010 1214 #define PFR_FLAG_REPLACE 0x00000020 1215 #define PFR_FLAG_ALLRSETS 0x00000040 1216 #define PFR_FLAG_ALLMASK 0x0000007F 1217 #ifdef _KERNEL 1218 #define PFR_FLAG_USERIOCTL 0x10000000 1219 #endif 1220 1221 struct pfioc_table { 1222 struct pfr_table pfrio_table; 1223 void *pfrio_buffer; 1224 int pfrio_esize; 1225 int pfrio_size; 1226 int pfrio_size2; 1227 int pfrio_nadd; 1228 int pfrio_ndel; 1229 int pfrio_nchange; 1230 int pfrio_flags; 1231 u_int32_t pfrio_ticket; 1232 }; 1233 #define pfrio_exists pfrio_nadd 1234 #define pfrio_nzero pfrio_nadd 1235 #define pfrio_nmatch pfrio_nadd 1236 #define pfrio_naddr pfrio_size2 1237 #define pfrio_setflag pfrio_size2 1238 #define pfrio_clrflag pfrio_nadd 1239 1240 struct pfioc_iface { 1241 char pfiio_name[IFNAMSIZ]; 1242 void *pfiio_buffer; 1243 int pfiio_esize; 1244 int pfiio_size; 1245 int pfiio_nzero; 1246 int pfiio_flags; 1247 }; 1248 1249 /* 1250 * ioctl operations 1251 */ 1252 1253 #define DIOCSTART _IO ('D', 1) 1254 #define DIOCSTOP _IO ('D', 2) 1255 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1256 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 1257 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1258 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1259 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 1260 /* XXX cut 8 - 17 */ 1261 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1262 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 1263 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1264 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 1265 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1266 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1267 #define DIOCCLRSTATUS _IO ('D', 22) 1268 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1269 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1270 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1271 #define DIOCGETSTATESNV _IOWR('D', 25, struct pfioc_nv) 1272 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1273 /* XXX cut 26 - 28 */ 1274 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1275 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1276 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1277 #define DIOCCLRRULECTRS _IO ('D', 38) 1278 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1279 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1280 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1281 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 1282 #define DIOCSTARTALTQ _IO ('D', 42) 1283 #define DIOCSTOPALTQ _IO ('D', 43) 1284 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 1285 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 1286 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 1287 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 1288 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 1289 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 1290 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 1291 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 1292 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 1293 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 1294 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1295 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1296 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1297 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1298 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1299 /* XXX cut 55 - 57 */ 1300 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1301 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1302 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1303 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1304 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1305 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1306 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1307 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1308 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1309 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1310 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1311 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1312 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1313 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1314 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1315 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1316 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1317 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1318 #define DIOCOSFPFLUSH _IO('D', 78) 1319 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1320 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1321 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1322 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1323 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1324 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1325 #define DIOCCLRSRCNODES _IO('D', 85) 1326 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1327 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1328 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1329 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1330 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1331 #define DIOCKEEPCOUNTERS _IOWR('D', 92, struct pfioc_nv) 1332 1333 struct pf_ifspeed_v0 { 1334 char ifname[IFNAMSIZ]; 1335 u_int32_t baudrate; 1336 }; 1337 1338 struct pf_ifspeed_v1 { 1339 char ifname[IFNAMSIZ]; 1340 u_int32_t baudrate32; 1341 /* layout identical to struct pf_ifspeed_v0 up to this point */ 1342 u_int64_t baudrate; 1343 }; 1344 1345 /* Latest version of struct pf_ifspeed_vX */ 1346 #define PF_IFSPEED_VERSION 1 1347 1348 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 1349 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 1350 1351 /* 1352 * Compatibility and convenience macros 1353 */ 1354 #ifndef _KERNEL 1355 #ifdef PFIOC_USE_LATEST 1356 /* 1357 * Maintaining in-tree consumers of the ioctl interface is easier when that 1358 * code can be written in terms old names that refer to the latest interface 1359 * version as that reduces the required changes in the consumers to those 1360 * that are functionally necessary to accommodate a new interface version. 1361 */ 1362 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 1363 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 1364 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 1365 1366 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 1367 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 1368 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 1369 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 1370 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 1371 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 1372 #else 1373 /* 1374 * When building out-of-tree code that is written for the old interface, 1375 * such as may exist in ports for example, resolve the old struct tags and 1376 * ioctl command names to the v0 versions. 1377 */ 1378 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 1379 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 1380 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 1381 1382 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 1383 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 1384 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 1385 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 1386 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 1387 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 1388 #endif /* PFIOC_USE_LATEST */ 1389 #endif /* _KERNEL */ 1390 1391 #ifdef _KERNEL 1392 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 1393 struct pf_srchash { 1394 struct pf_ksrc_node_list nodes; 1395 struct mtx lock; 1396 }; 1397 1398 struct pf_keyhash { 1399 LIST_HEAD(, pf_state_key) keys; 1400 struct mtx lock; 1401 }; 1402 1403 struct pf_idhash { 1404 LIST_HEAD(, pf_state) states; 1405 struct mtx lock; 1406 }; 1407 1408 extern u_long pf_hashmask; 1409 extern u_long pf_srchashmask; 1410 #define PF_HASHSIZ (131072) 1411 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 1412 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1413 VNET_DECLARE(struct pf_idhash *, pf_idhash); 1414 #define V_pf_keyhash VNET(pf_keyhash) 1415 #define V_pf_idhash VNET(pf_idhash) 1416 VNET_DECLARE(struct pf_srchash *, pf_srchash); 1417 #define V_pf_srchash VNET(pf_srchash) 1418 1419 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1)) 1420 1421 VNET_DECLARE(void *, pf_swi_cookie); 1422 #define V_pf_swi_cookie VNET(pf_swi_cookie) 1423 VNET_DECLARE(struct intr_event *, pf_swi_ie); 1424 #define V_pf_swi_ie VNET(pf_swi_ie) 1425 1426 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1427 #define V_pf_stateid VNET(pf_stateid) 1428 1429 TAILQ_HEAD(pf_altqqueue, pf_altq); 1430 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 1431 #define V_pf_altqs VNET(pf_altqs) 1432 VNET_DECLARE(struct pf_kpalist, pf_pabuf); 1433 #define V_pf_pabuf VNET(pf_pabuf) 1434 1435 VNET_DECLARE(u_int32_t, ticket_altqs_active); 1436 #define V_ticket_altqs_active VNET(ticket_altqs_active) 1437 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1438 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1439 VNET_DECLARE(int, altqs_inactive_open); 1440 #define V_altqs_inactive_open VNET(altqs_inactive_open) 1441 VNET_DECLARE(u_int32_t, ticket_pabuf); 1442 #define V_ticket_pabuf VNET(ticket_pabuf) 1443 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1444 #define V_pf_altqs_active VNET(pf_altqs_active) 1445 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 1446 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 1447 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1448 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1449 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 1450 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 1451 1452 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 1453 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1454 1455 void pf_initialize(void); 1456 void pf_mtag_initialize(void); 1457 void pf_mtag_cleanup(void); 1458 void pf_cleanup(void); 1459 1460 struct pf_mtag *pf_get_mtag(struct mbuf *); 1461 1462 extern void pf_calc_skip_steps(struct pf_krulequeue *); 1463 #ifdef ALTQ 1464 extern void pf_altq_ifnet_event(struct ifnet *, int); 1465 #endif 1466 VNET_DECLARE(uma_zone_t, pf_state_z); 1467 #define V_pf_state_z VNET(pf_state_z) 1468 VNET_DECLARE(uma_zone_t, pf_state_key_z); 1469 #define V_pf_state_key_z VNET(pf_state_key_z) 1470 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1471 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1472 1473 extern void pf_purge_thread(void *); 1474 extern void pf_unload_vnet_purge(void); 1475 extern void pf_intr(void *); 1476 extern void pf_purge_expired_src_nodes(void); 1477 1478 extern int pf_unlink_state(struct pf_state *, u_int); 1479 #define PF_ENTER_LOCKED 0x00000001 1480 #define PF_RETURN_LOCKED 0x00000002 1481 extern int pf_state_insert(struct pfi_kkif *, 1482 struct pfi_kkif *, 1483 struct pf_state_key *, 1484 struct pf_state_key *, 1485 struct pf_state *); 1486 extern void pf_free_state(struct pf_state *); 1487 1488 static __inline void 1489 pf_ref_state(struct pf_state *s) 1490 { 1491 1492 refcount_acquire(&s->refs); 1493 } 1494 1495 static __inline int 1496 pf_release_state(struct pf_state *s) 1497 { 1498 1499 if (refcount_release(&s->refs)) { 1500 pf_free_state(s); 1501 return (1); 1502 } else 1503 return (0); 1504 } 1505 1506 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t); 1507 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1508 u_int, int *); 1509 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 1510 struct pf_krule *, sa_family_t, int); 1511 extern void pf_unlink_src_node(struct pf_ksrc_node *); 1512 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 1513 extern void pf_print_state(struct pf_state *); 1514 extern void pf_print_flags(u_int8_t); 1515 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1516 u_int8_t); 1517 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 1518 u_int16_t, u_int16_t, u_int8_t); 1519 1520 VNET_DECLARE(struct ifnet *, sync_ifp); 1521 #define V_sync_ifp VNET(sync_ifp); 1522 VNET_DECLARE(struct pf_krule, pf_default_rule); 1523 #define V_pf_default_rule VNET(pf_default_rule) 1524 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1525 u_int8_t); 1526 void pf_free_rule(struct pf_krule *); 1527 1528 #ifdef INET 1529 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1530 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *, 1531 struct pf_pdesc *); 1532 #endif /* INET */ 1533 1534 #ifdef INET6 1535 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1536 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *, 1537 struct pf_pdesc *); 1538 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1539 struct pf_addr *, struct pf_addr *, u_int8_t); 1540 void pf_addr_inc(struct pf_addr *, sa_family_t); 1541 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *); 1542 #endif /* INET6 */ 1543 1544 u_int32_t pf_new_isn(struct pf_state *); 1545 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1546 sa_family_t); 1547 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1548 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 1549 u_int8_t); 1550 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 1551 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t, 1552 bool, u_int8_t); 1553 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t, 1554 bool, u_int8_t); 1555 void pf_send_deferred_syn(struct pf_state *); 1556 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1557 struct pf_addr *, sa_family_t); 1558 int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1559 struct pf_addr *, sa_family_t); 1560 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1561 1562 void pf_normalize_init(void); 1563 void pf_normalize_cleanup(void); 1564 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *, 1565 struct pf_pdesc *); 1566 void pf_normalize_tcp_cleanup(struct pf_state *); 1567 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1568 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1569 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1570 u_short *, struct tcphdr *, struct pf_state *, 1571 struct pf_state_peer *, struct pf_state_peer *, int *); 1572 u_int32_t 1573 pf_state_expires(const struct pf_state *); 1574 void pf_purge_expired_fragments(void); 1575 void pf_purge_fragments(uint32_t); 1576 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 1577 int); 1578 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 1579 struct pf_state_key *pf_alloc_state_key(int); 1580 void pfr_initialize(void); 1581 void pfr_cleanup(void); 1582 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1583 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1584 u_int64_t, int, int, int); 1585 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 1586 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1587 struct pfr_ktable * 1588 pfr_attach_table(struct pf_kruleset *, char *); 1589 void pfr_detach_table(struct pfr_ktable *); 1590 int pfr_clr_tables(struct pfr_table *, int *, int); 1591 int pfr_add_tables(struct pfr_table *, int, int *, int); 1592 int pfr_del_tables(struct pfr_table *, int, int *, int); 1593 int pfr_table_count(struct pfr_table *, int); 1594 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1595 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1596 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1597 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1598 int pfr_clr_addrs(struct pfr_table *, int *, int); 1599 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1600 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1601 int); 1602 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1603 int); 1604 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1605 int *, int *, int *, int, u_int32_t); 1606 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1607 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1608 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1609 int); 1610 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1611 int); 1612 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1613 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1614 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1615 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1616 int *, u_int32_t, int); 1617 1618 MALLOC_DECLARE(PFI_MTYPE); 1619 VNET_DECLARE(struct pfi_kkif *, pfi_all); 1620 #define V_pfi_all VNET(pfi_all) 1621 1622 void pfi_initialize(void); 1623 void pfi_initialize_vnet(void); 1624 void pfi_cleanup(void); 1625 void pfi_cleanup_vnet(void); 1626 void pfi_kkif_ref(struct pfi_kkif *); 1627 void pfi_kkif_unref(struct pfi_kkif *); 1628 struct pfi_kkif *pfi_kkif_find(const char *); 1629 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 1630 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 1631 void pfi_kkif_purge(void); 1632 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1633 sa_family_t); 1634 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1635 void pfi_dynaddr_remove(struct pfi_dynaddr *); 1636 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1637 void pfi_update_status(const char *, struct pf_status *); 1638 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 1639 int pfi_set_flags(const char *, int); 1640 int pfi_clear_flags(const char *, int); 1641 1642 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 1643 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 1644 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 1645 sa_family_t); 1646 void pf_qid2qname(u_int32_t, char *); 1647 1648 VNET_DECLARE(struct pf_kstatus, pf_status); 1649 #define V_pf_status VNET(pf_status) 1650 1651 struct pf_limit { 1652 uma_zone_t zone; 1653 u_int limit; 1654 }; 1655 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 1656 #define V_pf_limits VNET(pf_limits) 1657 1658 #endif /* _KERNEL */ 1659 1660 #ifdef _KERNEL 1661 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 1662 #define V_pf_anchors VNET(pf_anchors) 1663 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 1664 #define V_pf_main_anchor VNET(pf_main_anchor) 1665 #define pf_main_ruleset V_pf_main_anchor.ruleset 1666 1667 void pf_init_kruleset(struct pf_kruleset *); 1668 int pf_kanchor_setup(struct pf_krule *, 1669 const struct pf_kruleset *, const char *); 1670 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 1671 const struct pf_krule *, nvlist_t *); 1672 int pf_kanchor_copyout(const struct pf_kruleset *, 1673 const struct pf_krule *, struct pfioc_rule *); 1674 void pf_kanchor_remove(struct pf_krule *); 1675 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 1676 struct pf_kruleset *pf_find_kruleset(const char *); 1677 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 1678 void pf_rs_initialize(void); 1679 1680 void pf_krule_free(struct pf_krule *); 1681 #endif 1682 1683 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1684 int pf_osfp_add(struct pf_osfp_ioctl *); 1685 #ifdef _KERNEL 1686 struct pf_osfp_enlist * 1687 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1688 const struct tcphdr *); 1689 #endif /* _KERNEL */ 1690 void pf_osfp_flush(void); 1691 int pf_osfp_get(struct pf_osfp_ioctl *); 1692 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1693 1694 #ifdef _KERNEL 1695 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 1696 1697 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *, 1698 struct pf_kruleset **, int, struct pf_krule **, 1699 struct pf_krule **, int *); 1700 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *, 1701 struct pf_kruleset **, int, struct pf_krule **, 1702 struct pf_krule **, int *); 1703 1704 int pf_map_addr(u_int8_t, struct pf_krule *, 1705 struct pf_addr *, struct pf_addr *, 1706 struct pf_addr *, struct pf_ksrc_node **); 1707 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 1708 int, int, struct pfi_kkif *, struct pf_ksrc_node **, 1709 struct pf_state_key **, struct pf_state_key **, 1710 struct pf_addr *, struct pf_addr *, 1711 uint16_t, uint16_t, struct pf_kanchor_stackframe *); 1712 1713 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 1714 struct pf_addr *, u_int16_t, u_int16_t); 1715 struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 1716 1717 struct pfi_kkif *pf_kkif_create(int); 1718 void pf_kkif_free(struct pfi_kkif *); 1719 void pf_kkif_zero(struct pfi_kkif *); 1720 #endif /* _KERNEL */ 1721 1722 #endif /* _NET_PFVAR_H_ */ 1723