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 #ifdef _KERNEL 55 #include <netinet/ip.h> 56 #include <netinet/tcp.h> 57 #include <netinet/udp.h> 58 #include <netinet/ip_icmp.h> 59 #include <netinet/icmp6.h> 60 #endif 61 62 #include <netpfil/pf/pf.h> 63 #include <netpfil/pf/pf_altq.h> 64 #include <netpfil/pf/pf_mtag.h> 65 66 #ifdef _KERNEL 67 68 SYSCTL_DECL(_net_pf); 69 MALLOC_DECLARE(M_PFHASH); 70 71 SDT_PROVIDER_DECLARE(pf); 72 73 struct pfi_dynaddr { 74 TAILQ_ENTRY(pfi_dynaddr) entry; 75 struct pf_addr pfid_addr4; 76 struct pf_addr pfid_mask4; 77 struct pf_addr pfid_addr6; 78 struct pf_addr pfid_mask6; 79 struct pfr_ktable *pfid_kt; 80 struct pfi_kkif *pfid_kif; 81 int pfid_net; /* mask or 128 */ 82 int pfid_acnt4; /* address count IPv4 */ 83 int pfid_acnt6; /* address count IPv6 */ 84 sa_family_t pfid_af; /* rule af */ 85 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 86 }; 87 88 /* 89 * Address manipulation macros 90 */ 91 #define HTONL(x) (x) = htonl((__uint32_t)(x)) 92 #define HTONS(x) (x) = htons((__uint16_t)(x)) 93 #define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 94 #define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 95 96 #define PF_NAME "pf" 97 98 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 99 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 100 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 101 102 #define PF_STATE_LOCK(s) \ 103 do { \ 104 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 105 PF_HASHROW_LOCK(_ih); \ 106 } while (0) 107 108 #define PF_STATE_UNLOCK(s) \ 109 do { \ 110 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \ 111 PF_HASHROW_UNLOCK(_ih); \ 112 } while (0) 113 114 #ifdef INVARIANTS 115 #define PF_STATE_LOCK_ASSERT(s) \ 116 do { \ 117 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 118 PF_HASHROW_ASSERT(_ih); \ 119 } while (0) 120 #else /* !INVARIANTS */ 121 #define PF_STATE_LOCK_ASSERT(s) do {} while (0) 122 #endif /* INVARIANTS */ 123 124 extern struct mtx pf_unlnkdrules_mtx; 125 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 126 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 127 128 extern struct rmlock pf_rules_lock; 129 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker 130 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker) 131 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker) 132 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock) 133 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock) 134 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED) 135 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED) 136 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED) 137 138 extern struct sx pf_end_lock; 139 140 #define PF_MODVER 1 141 #define PFLOG_MODVER 1 142 #define PFSYNC_MODVER 1 143 144 #define PFLOG_MINVER 1 145 #define PFLOG_PREFVER PFLOG_MODVER 146 #define PFLOG_MAXVER 1 147 #define PFSYNC_MINVER 1 148 #define PFSYNC_PREFVER PFSYNC_MODVER 149 #define PFSYNC_MAXVER 1 150 151 #ifdef INET 152 #ifndef INET6 153 #define PF_INET_ONLY 154 #endif /* ! INET6 */ 155 #endif /* INET */ 156 157 #ifdef INET6 158 #ifndef INET 159 #define PF_INET6_ONLY 160 #endif /* ! INET */ 161 #endif /* INET6 */ 162 163 #ifdef INET 164 #ifdef INET6 165 #define PF_INET_INET6 166 #endif /* INET6 */ 167 #endif /* INET */ 168 169 #else 170 171 #define PF_INET_INET6 172 173 #endif /* _KERNEL */ 174 175 /* Both IPv4 and IPv6 */ 176 #ifdef PF_INET_INET6 177 178 #define PF_AEQ(a, b, c) \ 179 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 180 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 181 (a)->addr32[2] == (b)->addr32[2] && \ 182 (a)->addr32[1] == (b)->addr32[1] && \ 183 (a)->addr32[0] == (b)->addr32[0])) \ 184 185 #define PF_ANEQ(a, b, c) \ 186 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 187 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 188 (a)->addr32[1] != (b)->addr32[1] || \ 189 (a)->addr32[2] != (b)->addr32[2] || \ 190 (a)->addr32[3] != (b)->addr32[3]))) \ 191 192 #define PF_AZERO(a, c) \ 193 ((c == AF_INET && !(a)->addr32[0]) || \ 194 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 195 !(a)->addr32[2] && !(a)->addr32[3] )) \ 196 197 #define PF_MATCHA(n, a, m, b, f) \ 198 pf_match_addr(n, a, m, b, f) 199 200 #define PF_ACPY(a, b, f) \ 201 pf_addrcpy(a, b, f) 202 203 #define PF_AINC(a, f) \ 204 pf_addr_inc(a, f) 205 206 #define PF_POOLMASK(a, b, c, d, f) \ 207 pf_poolmask(a, b, c, d, f) 208 209 #else 210 211 /* Just IPv6 */ 212 213 #ifdef PF_INET6_ONLY 214 215 #define PF_AEQ(a, b, c) \ 216 ((a)->addr32[3] == (b)->addr32[3] && \ 217 (a)->addr32[2] == (b)->addr32[2] && \ 218 (a)->addr32[1] == (b)->addr32[1] && \ 219 (a)->addr32[0] == (b)->addr32[0]) \ 220 221 #define PF_ANEQ(a, b, c) \ 222 ((a)->addr32[3] != (b)->addr32[3] || \ 223 (a)->addr32[2] != (b)->addr32[2] || \ 224 (a)->addr32[1] != (b)->addr32[1] || \ 225 (a)->addr32[0] != (b)->addr32[0]) \ 226 227 #define PF_AZERO(a, c) \ 228 (!(a)->addr32[0] && \ 229 !(a)->addr32[1] && \ 230 !(a)->addr32[2] && \ 231 !(a)->addr32[3] ) \ 232 233 #define PF_MATCHA(n, a, m, b, f) \ 234 pf_match_addr(n, a, m, b, f) 235 236 #define PF_ACPY(a, b, f) \ 237 pf_addrcpy(a, b, f) 238 239 #define PF_AINC(a, f) \ 240 pf_addr_inc(a, f) 241 242 #define PF_POOLMASK(a, b, c, d, f) \ 243 pf_poolmask(a, b, c, d, f) 244 245 #else 246 247 /* Just IPv4 */ 248 #ifdef PF_INET_ONLY 249 250 #define PF_AEQ(a, b, c) \ 251 ((a)->addr32[0] == (b)->addr32[0]) 252 253 #define PF_ANEQ(a, b, c) \ 254 ((a)->addr32[0] != (b)->addr32[0]) 255 256 #define PF_AZERO(a, c) \ 257 (!(a)->addr32[0]) 258 259 #define PF_MATCHA(n, a, m, b, f) \ 260 pf_match_addr(n, a, m, b, f) 261 262 #define PF_ACPY(a, b, f) \ 263 (a)->v4.s_addr = (b)->v4.s_addr 264 265 #define PF_AINC(a, f) \ 266 do { \ 267 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 268 } while (0) 269 270 #define PF_POOLMASK(a, b, c, d, f) \ 271 do { \ 272 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 273 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 274 } while (0) 275 276 #endif /* PF_INET_ONLY */ 277 #endif /* PF_INET6_ONLY */ 278 #endif /* PF_INET_INET6 */ 279 280 /* 281 * XXX callers not FIB-aware in our version of pf yet. 282 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 283 */ 284 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 285 ( \ 286 (((aw)->type == PF_ADDR_NOROUTE && \ 287 pf_routable((x), (af), NULL, (rtid))) || \ 288 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 289 pf_routable((x), (af), (ifp), (rtid))) || \ 290 ((aw)->type == PF_ADDR_TABLE && \ 291 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 292 ((aw)->type == PF_ADDR_DYNIFTL && \ 293 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 294 ((aw)->type == PF_ADDR_RANGE && \ 295 !pf_match_addr_range(&(aw)->v.a.addr, \ 296 &(aw)->v.a.mask, (x), (af))) || \ 297 ((aw)->type == PF_ADDR_ADDRMASK && \ 298 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 299 !PF_MATCHA(0, &(aw)->v.a.addr, \ 300 &(aw)->v.a.mask, (x), (af))))) != \ 301 (neg) \ 302 ) 303 304 #define PF_ALGNMNT(off) (((off) % 2) == 0) 305 306 #ifdef _KERNEL 307 308 struct pf_kpooladdr { 309 struct pf_addr_wrap addr; 310 TAILQ_ENTRY(pf_kpooladdr) entries; 311 char ifname[IFNAMSIZ]; 312 struct pfi_kkif *kif; 313 }; 314 315 TAILQ_HEAD(pf_kpalist, pf_kpooladdr); 316 317 struct pf_kpool { 318 struct pf_kpalist list; 319 struct pf_kpooladdr *cur; 320 struct pf_poolhashkey key; 321 struct pf_addr counter; 322 struct pf_mape_portset mape; 323 int tblidx; 324 u_int16_t proxy_port[2]; 325 u_int8_t opts; 326 }; 327 328 union pf_krule_ptr { 329 struct pf_krule *ptr; 330 u_int32_t nr; 331 }; 332 333 struct pf_krule { 334 struct pf_rule_addr src; 335 struct pf_rule_addr dst; 336 union pf_krule_ptr skip[PF_SKIP_COUNT]; 337 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 338 char ifname[IFNAMSIZ]; 339 char qname[PF_QNAME_SIZE]; 340 char pqname[PF_QNAME_SIZE]; 341 char tagname[PF_TAG_NAME_SIZE]; 342 char match_tagname[PF_TAG_NAME_SIZE]; 343 344 char overload_tblname[PF_TABLE_NAME_SIZE]; 345 346 TAILQ_ENTRY(pf_krule) entries; 347 struct pf_kpool rpool; 348 349 counter_u64_t evaluations; 350 counter_u64_t packets[2]; 351 counter_u64_t bytes[2]; 352 353 struct pfi_kkif *kif; 354 struct pf_kanchor *anchor; 355 struct pfr_ktable *overload_tbl; 356 357 pf_osfp_t os_fingerprint; 358 359 int rtableid; 360 u_int32_t timeout[PFTM_MAX]; 361 u_int32_t max_states; 362 u_int32_t max_src_nodes; 363 u_int32_t max_src_states; 364 u_int32_t max_src_conn; 365 struct { 366 u_int32_t limit; 367 u_int32_t seconds; 368 } max_src_conn_rate; 369 u_int32_t qid; 370 u_int32_t pqid; 371 u_int32_t nr; 372 u_int32_t prob; 373 uid_t cuid; 374 pid_t cpid; 375 376 counter_u64_t states_cur; 377 counter_u64_t states_tot; 378 counter_u64_t src_nodes; 379 380 u_int16_t return_icmp; 381 u_int16_t return_icmp6; 382 u_int16_t max_mss; 383 u_int16_t tag; 384 u_int16_t match_tag; 385 u_int16_t scrub_flags; 386 387 struct pf_rule_uid uid; 388 struct pf_rule_gid gid; 389 390 u_int32_t rule_flag; 391 uint32_t rule_ref; 392 u_int8_t action; 393 u_int8_t direction; 394 u_int8_t log; 395 u_int8_t logif; 396 u_int8_t quick; 397 u_int8_t ifnot; 398 u_int8_t match_tag_not; 399 u_int8_t natpass; 400 401 u_int8_t keep_state; 402 sa_family_t af; 403 u_int8_t proto; 404 u_int8_t type; 405 u_int8_t code; 406 u_int8_t flags; 407 u_int8_t flagset; 408 u_int8_t min_ttl; 409 u_int8_t allow_opts; 410 u_int8_t rt; 411 u_int8_t return_ttl; 412 u_int8_t tos; 413 u_int8_t set_tos; 414 u_int8_t anchor_relative; 415 u_int8_t anchor_wildcard; 416 417 u_int8_t flush; 418 u_int8_t prio; 419 u_int8_t set_prio[2]; 420 421 struct { 422 struct pf_addr addr; 423 u_int16_t port; 424 } divert; 425 }; 426 427 struct pf_ksrc_node { 428 LIST_ENTRY(pf_ksrc_node) entry; 429 struct pf_addr addr; 430 struct pf_addr raddr; 431 union pf_krule_ptr rule; 432 struct pfi_kkif *kif; 433 counter_u64_t bytes[2]; 434 counter_u64_t packets[2]; 435 u_int32_t states; 436 u_int32_t conn; 437 struct pf_threshold conn_rate; 438 u_int32_t creation; 439 u_int32_t expire; 440 sa_family_t af; 441 u_int8_t ruletype; 442 }; 443 #endif 444 445 struct pf_state_scrub { 446 struct timeval pfss_last; /* time received last packet */ 447 u_int32_t pfss_tsecr; /* last echoed timestamp */ 448 u_int32_t pfss_tsval; /* largest timestamp */ 449 u_int32_t pfss_tsval0; /* original timestamp */ 450 u_int16_t pfss_flags; 451 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 452 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 453 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 454 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 455 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 456 u_int8_t pfss_ttl; /* stashed TTL */ 457 u_int8_t pad; 458 u_int32_t pfss_ts_mod; /* timestamp modulation */ 459 }; 460 461 struct pf_state_host { 462 struct pf_addr addr; 463 u_int16_t port; 464 u_int16_t pad; 465 }; 466 467 struct pf_state_peer { 468 struct pf_state_scrub *scrub; /* state is scrubbed */ 469 u_int32_t seqlo; /* Max sequence number sent */ 470 u_int32_t seqhi; /* Max the other end ACKd + win */ 471 u_int32_t seqdiff; /* Sequence number modulator */ 472 u_int16_t max_win; /* largest window (pre scaling) */ 473 u_int16_t mss; /* Maximum segment size option */ 474 u_int8_t state; /* active state level */ 475 u_int8_t wscale; /* window scaling factor */ 476 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 477 u_int8_t pad[1]; 478 }; 479 480 /* Keep synced with struct pf_state_key. */ 481 struct pf_state_key_cmp { 482 struct pf_addr addr[2]; 483 u_int16_t port[2]; 484 sa_family_t af; 485 u_int8_t proto; 486 u_int8_t pad[2]; 487 }; 488 489 struct pf_state_key { 490 struct pf_addr addr[2]; 491 u_int16_t port[2]; 492 sa_family_t af; 493 u_int8_t proto; 494 u_int8_t pad[2]; 495 496 LIST_ENTRY(pf_state_key) entry; 497 TAILQ_HEAD(, pf_state) states[2]; 498 }; 499 500 /* Keep synced with struct pf_state. */ 501 struct pf_state_cmp { 502 u_int64_t id; 503 u_int32_t creatorid; 504 u_int8_t direction; 505 u_int8_t pad[3]; 506 }; 507 508 #define PFSTATE_ALLOWOPTS 0x01 509 #define PFSTATE_SLOPPY 0x02 510 /* was PFSTATE_PFLOW 0x04 */ 511 #define PFSTATE_NOSYNC 0x08 512 #define PFSTATE_ACK 0x10 513 #define PFSTATE_SETPRIO 0x0200 514 #define PFSTATE_SETMASK (PFSTATE_SETPRIO) 515 516 #ifdef _KERNEL 517 struct pf_state { 518 u_int64_t id; 519 u_int32_t creatorid; 520 u_int8_t direction; 521 u_int8_t pad[3]; 522 523 u_int refs; 524 TAILQ_ENTRY(pf_state) sync_list; 525 TAILQ_ENTRY(pf_state) key_list[2]; 526 LIST_ENTRY(pf_state) entry; 527 struct pf_state_peer src; 528 struct pf_state_peer dst; 529 union pf_krule_ptr rule; 530 union pf_krule_ptr anchor; 531 union pf_krule_ptr nat_rule; 532 struct pf_addr rt_addr; 533 struct pf_state_key *key[2]; /* addresses stack and wire */ 534 struct pfi_kkif *kif; 535 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */ 536 struct pfi_kkif *rt_kif; 537 struct pf_ksrc_node *src_node; 538 struct pf_ksrc_node *nat_src_node; 539 counter_u64_t packets[2]; 540 counter_u64_t bytes[2]; 541 u_int32_t creation; 542 u_int32_t expire; 543 u_int32_t pfsync_time; 544 u_int16_t tag; 545 u_int8_t log; 546 u_int8_t state_flags; 547 u_int8_t timeout; 548 u_int8_t sync_state; /* PFSYNC_S_x */ 549 550 /* XXX */ 551 u_int8_t sync_updates; 552 u_int8_t _tail[3]; 553 }; 554 #endif 555 556 /* 557 * Unified state structures for pulling states out of the kernel 558 * used by pfsync(4) and the pf(4) ioctl. 559 */ 560 struct pfsync_state_scrub { 561 u_int16_t pfss_flags; 562 u_int8_t pfss_ttl; /* stashed TTL */ 563 #define PFSYNC_SCRUB_FLAG_VALID 0x01 564 u_int8_t scrub_flag; 565 u_int32_t pfss_ts_mod; /* timestamp modulation */ 566 } __packed; 567 568 struct pfsync_state_peer { 569 struct pfsync_state_scrub scrub; /* state is scrubbed */ 570 u_int32_t seqlo; /* Max sequence number sent */ 571 u_int32_t seqhi; /* Max the other end ACKd + win */ 572 u_int32_t seqdiff; /* Sequence number modulator */ 573 u_int16_t max_win; /* largest window (pre scaling) */ 574 u_int16_t mss; /* Maximum segment size option */ 575 u_int8_t state; /* active state level */ 576 u_int8_t wscale; /* window scaling factor */ 577 u_int8_t pad[6]; 578 } __packed; 579 580 struct pfsync_state_key { 581 struct pf_addr addr[2]; 582 u_int16_t port[2]; 583 }; 584 585 struct pfsync_state { 586 u_int64_t id; 587 char ifname[IFNAMSIZ]; 588 struct pfsync_state_key key[2]; 589 struct pfsync_state_peer src; 590 struct pfsync_state_peer dst; 591 struct pf_addr rt_addr; 592 u_int32_t rule; 593 u_int32_t anchor; 594 u_int32_t nat_rule; 595 u_int32_t creation; 596 u_int32_t expire; 597 u_int32_t packets[2][2]; 598 u_int32_t bytes[2][2]; 599 u_int32_t creatorid; 600 sa_family_t af; 601 u_int8_t proto; 602 u_int8_t direction; 603 u_int8_t __spare[2]; 604 u_int8_t log; 605 u_int8_t state_flags; 606 u_int8_t timeout; 607 u_int8_t sync_flags; 608 u_int8_t updates; 609 } __packed; 610 611 #ifdef _KERNEL 612 /* pfsync */ 613 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 614 typedef void pfsync_insert_state_t(struct pf_state *); 615 typedef void pfsync_update_state_t(struct pf_state *); 616 typedef void pfsync_delete_state_t(struct pf_state *); 617 typedef void pfsync_clear_states_t(u_int32_t, const char *); 618 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 619 typedef void pfsync_detach_ifnet_t(struct ifnet *); 620 621 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr); 622 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr) 623 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr); 624 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr) 625 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr); 626 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr) 627 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr); 628 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr) 629 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr); 630 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr) 631 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr); 632 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr) 633 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr; 634 635 void pfsync_state_export(struct pfsync_state *, 636 struct pf_state *); 637 638 /* pflog */ 639 struct pf_kruleset; 640 struct pf_pdesc; 641 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t, 642 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *, 643 struct pf_kruleset *, struct pf_pdesc *, int); 644 extern pflog_packet_t *pflog_packet_ptr; 645 646 #endif /* _KERNEL */ 647 648 #define PFSYNC_FLAG_SRCNODE 0x04 649 #define PFSYNC_FLAG_NATSRCNODE 0x08 650 651 /* for copies to/from network byte order */ 652 /* ioctl interface also uses network byte order */ 653 #define pf_state_peer_hton(s,d) do { \ 654 (d)->seqlo = htonl((s)->seqlo); \ 655 (d)->seqhi = htonl((s)->seqhi); \ 656 (d)->seqdiff = htonl((s)->seqdiff); \ 657 (d)->max_win = htons((s)->max_win); \ 658 (d)->mss = htons((s)->mss); \ 659 (d)->state = (s)->state; \ 660 (d)->wscale = (s)->wscale; \ 661 if ((s)->scrub) { \ 662 (d)->scrub.pfss_flags = \ 663 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 664 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 665 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 666 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 667 } \ 668 } while (0) 669 670 #define pf_state_peer_ntoh(s,d) do { \ 671 (d)->seqlo = ntohl((s)->seqlo); \ 672 (d)->seqhi = ntohl((s)->seqhi); \ 673 (d)->seqdiff = ntohl((s)->seqdiff); \ 674 (d)->max_win = ntohs((s)->max_win); \ 675 (d)->mss = ntohs((s)->mss); \ 676 (d)->state = (s)->state; \ 677 (d)->wscale = (s)->wscale; \ 678 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 679 (d)->scrub != NULL) { \ 680 (d)->scrub->pfss_flags = \ 681 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 682 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 683 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 684 } \ 685 } while (0) 686 687 #define pf_state_counter_hton(s,d) do { \ 688 d[0] = htonl((s>>32)&0xffffffff); \ 689 d[1] = htonl(s&0xffffffff); \ 690 } while (0) 691 692 #define pf_state_counter_from_pfsync(s) \ 693 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 694 695 #define pf_state_counter_ntoh(s,d) do { \ 696 d = ntohl(s[0]); \ 697 d = d<<32; \ 698 d += ntohl(s[1]); \ 699 } while (0) 700 701 TAILQ_HEAD(pf_krulequeue, pf_krule); 702 703 struct pf_kanchor; 704 705 struct pf_kruleset { 706 struct { 707 struct pf_krulequeue queues[2]; 708 struct { 709 struct pf_krulequeue *ptr; 710 struct pf_krule **ptr_array; 711 u_int32_t rcount; 712 u_int32_t ticket; 713 int open; 714 } active, inactive; 715 } rules[PF_RULESET_MAX]; 716 struct pf_kanchor *anchor; 717 u_int32_t tticket; 718 int tables; 719 int topen; 720 }; 721 722 RB_HEAD(pf_kanchor_global, pf_kanchor); 723 RB_HEAD(pf_kanchor_node, pf_kanchor); 724 struct pf_kanchor { 725 RB_ENTRY(pf_kanchor) entry_global; 726 RB_ENTRY(pf_kanchor) entry_node; 727 struct pf_kanchor *parent; 728 struct pf_kanchor_node children; 729 char name[PF_ANCHOR_NAME_SIZE]; 730 char path[MAXPATHLEN]; 731 struct pf_kruleset ruleset; 732 int refcnt; /* anchor rules */ 733 int match; /* XXX: used for pfctl black magic */ 734 }; 735 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare); 736 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare); 737 738 #define PF_RESERVED_ANCHOR "_pf" 739 740 #define PFR_TFLAG_PERSIST 0x00000001 741 #define PFR_TFLAG_CONST 0x00000002 742 #define PFR_TFLAG_ACTIVE 0x00000004 743 #define PFR_TFLAG_INACTIVE 0x00000008 744 #define PFR_TFLAG_REFERENCED 0x00000010 745 #define PFR_TFLAG_REFDANCHOR 0x00000020 746 #define PFR_TFLAG_COUNTERS 0x00000040 747 /* Adjust masks below when adding flags. */ 748 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 749 PFR_TFLAG_CONST | \ 750 PFR_TFLAG_COUNTERS) 751 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 752 PFR_TFLAG_INACTIVE | \ 753 PFR_TFLAG_REFERENCED | \ 754 PFR_TFLAG_REFDANCHOR) 755 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 756 PFR_TFLAG_CONST | \ 757 PFR_TFLAG_ACTIVE | \ 758 PFR_TFLAG_INACTIVE | \ 759 PFR_TFLAG_REFERENCED | \ 760 PFR_TFLAG_REFDANCHOR | \ 761 PFR_TFLAG_COUNTERS) 762 763 struct pf_kanchor_stackframe; 764 765 struct pfr_table { 766 char pfrt_anchor[MAXPATHLEN]; 767 char pfrt_name[PF_TABLE_NAME_SIZE]; 768 u_int32_t pfrt_flags; 769 u_int8_t pfrt_fback; 770 }; 771 772 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 773 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 774 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 775 776 struct pfr_addr { 777 union { 778 struct in_addr _pfra_ip4addr; 779 struct in6_addr _pfra_ip6addr; 780 } pfra_u; 781 u_int8_t pfra_af; 782 u_int8_t pfra_net; 783 u_int8_t pfra_not; 784 u_int8_t pfra_fback; 785 }; 786 #define pfra_ip4addr pfra_u._pfra_ip4addr 787 #define pfra_ip6addr pfra_u._pfra_ip6addr 788 789 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 790 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 791 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX }; 792 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX) 793 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 794 795 struct pfr_astats { 796 struct pfr_addr pfras_a; 797 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 798 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 799 long pfras_tzero; 800 }; 801 802 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 803 804 struct pfr_tstats { 805 struct pfr_table pfrts_t; 806 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 807 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 808 u_int64_t pfrts_match; 809 u_int64_t pfrts_nomatch; 810 long pfrts_tzero; 811 int pfrts_cnt; 812 int pfrts_refcnt[PFR_REFCNT_MAX]; 813 }; 814 815 struct pfr_ktstats { 816 struct pfr_table pfrts_t; 817 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 818 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 819 counter_u64_t pfrkts_match; 820 counter_u64_t pfrkts_nomatch; 821 long pfrkts_tzero; 822 int pfrkts_cnt; 823 int pfrkts_refcnt[PFR_REFCNT_MAX]; 824 }; 825 #define pfrts_name pfrts_t.pfrt_name 826 #define pfrts_flags pfrts_t.pfrt_flags 827 828 #ifndef _SOCKADDR_UNION_DEFINED 829 #define _SOCKADDR_UNION_DEFINED 830 union sockaddr_union { 831 struct sockaddr sa; 832 struct sockaddr_in sin; 833 struct sockaddr_in6 sin6; 834 }; 835 #endif /* _SOCKADDR_UNION_DEFINED */ 836 837 struct pfr_kcounters { 838 counter_u64_t pfrkc_counters; 839 long pfrkc_tzero; 840 }; 841 #define pfr_kentry_counter(kc, dir, op, t) \ 842 ((kc)->pfrkc_counters + \ 843 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t)) 844 845 #ifdef _KERNEL 846 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 847 struct pfr_kentry { 848 struct radix_node pfrke_node[2]; 849 union sockaddr_union pfrke_sa; 850 SLIST_ENTRY(pfr_kentry) pfrke_workq; 851 struct pfr_kcounters pfrke_counters; 852 u_int8_t pfrke_af; 853 u_int8_t pfrke_net; 854 u_int8_t pfrke_not; 855 u_int8_t pfrke_mark; 856 }; 857 858 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 859 RB_HEAD(pfr_ktablehead, pfr_ktable); 860 struct pfr_ktable { 861 struct pfr_ktstats pfrkt_kts; 862 RB_ENTRY(pfr_ktable) pfrkt_tree; 863 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 864 struct radix_node_head *pfrkt_ip4; 865 struct radix_node_head *pfrkt_ip6; 866 struct pfr_ktable *pfrkt_shadow; 867 struct pfr_ktable *pfrkt_root; 868 struct pf_kruleset *pfrkt_rs; 869 long pfrkt_larg; 870 int pfrkt_nflags; 871 }; 872 #define pfrkt_t pfrkt_kts.pfrts_t 873 #define pfrkt_name pfrkt_t.pfrt_name 874 #define pfrkt_anchor pfrkt_t.pfrt_anchor 875 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 876 #define pfrkt_flags pfrkt_t.pfrt_flags 877 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt 878 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt 879 #define pfrkt_packets pfrkt_kts.pfrkts_packets 880 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes 881 #define pfrkt_match pfrkt_kts.pfrkts_match 882 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch 883 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero 884 #endif 885 886 #ifdef _KERNEL 887 struct pfi_kkif { 888 char pfik_name[IFNAMSIZ]; 889 union { 890 RB_ENTRY(pfi_kkif) _pfik_tree; 891 LIST_ENTRY(pfi_kkif) _pfik_list; 892 } _pfik_glue; 893 #define pfik_tree _pfik_glue._pfik_tree 894 #define pfik_list _pfik_glue._pfik_list 895 counter_u64_t pfik_packets[2][2][2]; 896 counter_u64_t pfik_bytes[2][2][2]; 897 u_int32_t pfik_tzero; 898 u_int pfik_flags; 899 struct ifnet *pfik_ifp; 900 struct ifg_group *pfik_group; 901 u_int pfik_rulerefs; 902 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 903 }; 904 #endif 905 906 #define PFI_IFLAG_REFS 0x0001 /* has state references */ 907 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 908 909 #ifdef _KERNEL 910 struct pf_pdesc { 911 struct { 912 int done; 913 uid_t uid; 914 gid_t gid; 915 } lookup; 916 u_int64_t tot_len; /* Make Mickey money */ 917 union pf_headers { 918 struct tcphdr tcp; 919 struct udphdr udp; 920 struct icmp icmp; 921 #ifdef INET6 922 struct icmp6_hdr icmp6; 923 #endif /* INET6 */ 924 char any[0]; 925 } hdr; 926 927 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */ 928 struct pf_addr *src; /* src address */ 929 struct pf_addr *dst; /* dst address */ 930 u_int16_t *sport; 931 u_int16_t *dport; 932 struct pf_mtag *pf_mtag; 933 934 u_int32_t p_len; /* total length of payload */ 935 936 u_int16_t *ip_sum; 937 u_int16_t *proto_sum; 938 u_int16_t flags; /* Let SCRUB trigger behavior in 939 * state code. Easier than tags */ 940 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 941 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 942 sa_family_t af; 943 u_int8_t proto; 944 u_int8_t tos; 945 u_int8_t dir; /* direction */ 946 u_int8_t sidx; /* key index for source */ 947 u_int8_t didx; /* key index for destination */ 948 }; 949 #endif 950 951 /* flags for RDR options */ 952 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 953 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 954 955 /* UDP state enumeration */ 956 #define PFUDPS_NO_TRAFFIC 0 957 #define PFUDPS_SINGLE 1 958 #define PFUDPS_MULTIPLE 2 959 960 #define PFUDPS_NSTATES 3 /* number of state levels */ 961 962 #define PFUDPS_NAMES { \ 963 "NO_TRAFFIC", \ 964 "SINGLE", \ 965 "MULTIPLE", \ 966 NULL \ 967 } 968 969 /* Other protocol state enumeration */ 970 #define PFOTHERS_NO_TRAFFIC 0 971 #define PFOTHERS_SINGLE 1 972 #define PFOTHERS_MULTIPLE 2 973 974 #define PFOTHERS_NSTATES 3 /* number of state levels */ 975 976 #define PFOTHERS_NAMES { \ 977 "NO_TRAFFIC", \ 978 "SINGLE", \ 979 "MULTIPLE", \ 980 NULL \ 981 } 982 983 #define ACTION_SET(a, x) \ 984 do { \ 985 if ((a) != NULL) \ 986 *(a) = (x); \ 987 } while (0) 988 989 #define REASON_SET(a, x) \ 990 do { \ 991 if ((a) != NULL) \ 992 *(a) = (x); \ 993 if (x < PFRES_MAX) \ 994 counter_u64_add(V_pf_status.counters[x], 1); \ 995 } while (0) 996 997 struct pf_kstatus { 998 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 999 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */ 1000 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */ 1001 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1002 uint32_t states; 1003 uint32_t src_nodes; 1004 uint32_t running; 1005 uint32_t since; 1006 uint32_t debug; 1007 uint32_t hostid; 1008 char ifname[IFNAMSIZ]; 1009 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1010 bool keep_counters; 1011 }; 1012 1013 struct pf_divert { 1014 union { 1015 struct in_addr ipv4; 1016 struct in6_addr ipv6; 1017 } addr; 1018 u_int16_t port; 1019 }; 1020 1021 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1022 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1023 1024 /* 1025 * Limit the length of the fragment queue traversal. Remember 1026 * search entry points based on the fragment offset. 1027 */ 1028 #define PF_FRAG_ENTRY_POINTS 16 1029 1030 /* 1031 * The number of entries in the fragment queue must be limited 1032 * to avoid DoS by linear seaching. Instead of a global limit, 1033 * use a limit per entry point. For large packets these sum up. 1034 */ 1035 #define PF_FRAG_ENTRY_LIMIT 64 1036 1037 /* 1038 * ioctl parameter structures 1039 */ 1040 1041 struct pfioc_pooladdr { 1042 u_int32_t action; 1043 u_int32_t ticket; 1044 u_int32_t nr; 1045 u_int32_t r_num; 1046 u_int8_t r_action; 1047 u_int8_t r_last; 1048 u_int8_t af; 1049 char anchor[MAXPATHLEN]; 1050 struct pf_pooladdr addr; 1051 }; 1052 1053 struct pfioc_rule { 1054 u_int32_t action; 1055 u_int32_t ticket; 1056 u_int32_t pool_ticket; 1057 u_int32_t nr; 1058 char anchor[MAXPATHLEN]; 1059 char anchor_call[MAXPATHLEN]; 1060 struct pf_rule rule; 1061 }; 1062 1063 struct pfioc_natlook { 1064 struct pf_addr saddr; 1065 struct pf_addr daddr; 1066 struct pf_addr rsaddr; 1067 struct pf_addr rdaddr; 1068 u_int16_t sport; 1069 u_int16_t dport; 1070 u_int16_t rsport; 1071 u_int16_t rdport; 1072 sa_family_t af; 1073 u_int8_t proto; 1074 u_int8_t direction; 1075 }; 1076 1077 struct pfioc_state { 1078 struct pfsync_state state; 1079 }; 1080 1081 struct pfioc_src_node_kill { 1082 sa_family_t psnk_af; 1083 struct pf_rule_addr psnk_src; 1084 struct pf_rule_addr psnk_dst; 1085 u_int psnk_killed; 1086 }; 1087 1088 #ifdef _KERNEL 1089 struct pf_kstate_kill { 1090 struct pf_state_cmp psk_pfcmp; 1091 sa_family_t psk_af; 1092 int psk_proto; 1093 struct pf_rule_addr psk_src; 1094 struct pf_rule_addr psk_dst; 1095 struct pf_rule_addr psk_rt_addr; 1096 char psk_ifname[IFNAMSIZ]; 1097 char psk_label[PF_RULE_LABEL_SIZE]; 1098 u_int psk_killed; 1099 bool psk_kill_match; 1100 }; 1101 #endif 1102 1103 struct pfioc_state_kill { 1104 struct pf_state_cmp psk_pfcmp; 1105 sa_family_t psk_af; 1106 int psk_proto; 1107 struct pf_rule_addr psk_src; 1108 struct pf_rule_addr psk_dst; 1109 char psk_ifname[IFNAMSIZ]; 1110 char psk_label[PF_RULE_LABEL_SIZE]; 1111 u_int psk_killed; 1112 }; 1113 1114 struct pfioc_states { 1115 int ps_len; 1116 union { 1117 caddr_t psu_buf; 1118 struct pfsync_state *psu_states; 1119 } ps_u; 1120 #define ps_buf ps_u.psu_buf 1121 #define ps_states ps_u.psu_states 1122 }; 1123 1124 struct pfioc_src_nodes { 1125 int psn_len; 1126 union { 1127 caddr_t psu_buf; 1128 struct pf_src_node *psu_src_nodes; 1129 } psn_u; 1130 #define psn_buf psn_u.psu_buf 1131 #define psn_src_nodes psn_u.psu_src_nodes 1132 }; 1133 1134 struct pfioc_if { 1135 char ifname[IFNAMSIZ]; 1136 }; 1137 1138 struct pfioc_tm { 1139 int timeout; 1140 int seconds; 1141 }; 1142 1143 struct pfioc_limit { 1144 int index; 1145 unsigned limit; 1146 }; 1147 1148 struct pfioc_altq_v0 { 1149 u_int32_t action; 1150 u_int32_t ticket; 1151 u_int32_t nr; 1152 struct pf_altq_v0 altq; 1153 }; 1154 1155 struct pfioc_altq_v1 { 1156 u_int32_t action; 1157 u_int32_t ticket; 1158 u_int32_t nr; 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; 1164 struct pf_altq_v1 altq; 1165 }; 1166 1167 /* 1168 * Latest version of struct pfioc_altq_vX. This must move in lock-step with 1169 * the latest version of struct pf_altq_vX as it has that struct as a 1170 * member. 1171 */ 1172 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION 1173 1174 struct pfioc_qstats_v0 { 1175 u_int32_t ticket; 1176 u_int32_t nr; 1177 void *buf; 1178 int nbytes; 1179 u_int8_t scheduler; 1180 }; 1181 1182 struct pfioc_qstats_v1 { 1183 u_int32_t ticket; 1184 u_int32_t nr; 1185 void *buf; 1186 int nbytes; 1187 u_int8_t scheduler; 1188 /* 1189 * Placed here so code that only uses the above parameters can be 1190 * written entirely in terms of the v0 or v1 type. 1191 */ 1192 u_int32_t version; /* Requested version of stats struct */ 1193 }; 1194 1195 /* Latest version of struct pfioc_qstats_vX */ 1196 #define PFIOC_QSTATS_VERSION 1 1197 1198 struct pfioc_ruleset { 1199 u_int32_t nr; 1200 char path[MAXPATHLEN]; 1201 char name[PF_ANCHOR_NAME_SIZE]; 1202 }; 1203 1204 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1205 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1206 struct pfioc_trans { 1207 int size; /* number of elements */ 1208 int esize; /* size of each element in bytes */ 1209 struct pfioc_trans_e { 1210 int rs_num; 1211 char anchor[MAXPATHLEN]; 1212 u_int32_t ticket; 1213 } *array; 1214 }; 1215 1216 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1217 #define PFR_FLAG_DUMMY 0x00000002 1218 #define PFR_FLAG_FEEDBACK 0x00000004 1219 #define PFR_FLAG_CLSTATS 0x00000008 1220 #define PFR_FLAG_ADDRSTOO 0x00000010 1221 #define PFR_FLAG_REPLACE 0x00000020 1222 #define PFR_FLAG_ALLRSETS 0x00000040 1223 #define PFR_FLAG_ALLMASK 0x0000007F 1224 #ifdef _KERNEL 1225 #define PFR_FLAG_USERIOCTL 0x10000000 1226 #endif 1227 1228 struct pfioc_table { 1229 struct pfr_table pfrio_table; 1230 void *pfrio_buffer; 1231 int pfrio_esize; 1232 int pfrio_size; 1233 int pfrio_size2; 1234 int pfrio_nadd; 1235 int pfrio_ndel; 1236 int pfrio_nchange; 1237 int pfrio_flags; 1238 u_int32_t pfrio_ticket; 1239 }; 1240 #define pfrio_exists pfrio_nadd 1241 #define pfrio_nzero pfrio_nadd 1242 #define pfrio_nmatch pfrio_nadd 1243 #define pfrio_naddr pfrio_size2 1244 #define pfrio_setflag pfrio_size2 1245 #define pfrio_clrflag pfrio_nadd 1246 1247 struct pfioc_iface { 1248 char pfiio_name[IFNAMSIZ]; 1249 void *pfiio_buffer; 1250 int pfiio_esize; 1251 int pfiio_size; 1252 int pfiio_nzero; 1253 int pfiio_flags; 1254 }; 1255 1256 /* 1257 * ioctl operations 1258 */ 1259 1260 #define DIOCSTART _IO ('D', 1) 1261 #define DIOCSTOP _IO ('D', 2) 1262 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1263 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv) 1264 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1265 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1266 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv) 1267 /* XXX cut 8 - 17 */ 1268 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1269 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv) 1270 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1271 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv) 1272 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1273 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1274 #define DIOCCLRSTATUS _IO ('D', 22) 1275 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1276 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1277 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1278 #define DIOCGETSTATESNV _IOWR('D', 25, struct pfioc_nv) 1279 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1280 /* XXX cut 26 - 28 */ 1281 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1282 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1283 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1284 #define DIOCCLRRULECTRS _IO ('D', 38) 1285 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1286 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1287 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1288 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv) 1289 #define DIOCSTARTALTQ _IO ('D', 42) 1290 #define DIOCSTOPALTQ _IO ('D', 43) 1291 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0) 1292 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1) 1293 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0) 1294 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1) 1295 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0) 1296 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1) 1297 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0) 1298 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1) 1299 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0) 1300 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1) 1301 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1302 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1303 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1304 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1305 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1306 /* XXX cut 55 - 57 */ 1307 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1308 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1309 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1310 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1311 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1312 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1313 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1314 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1315 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1316 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1317 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1318 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1319 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1320 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1321 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1322 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1323 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1324 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1325 #define DIOCOSFPFLUSH _IO('D', 78) 1326 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1327 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1328 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1329 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1330 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1331 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1332 #define DIOCCLRSRCNODES _IO('D', 85) 1333 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1334 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1335 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1336 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1337 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1338 #define DIOCKEEPCOUNTERS _IOWR('D', 92, struct pfioc_nv) 1339 1340 struct pf_ifspeed_v0 { 1341 char ifname[IFNAMSIZ]; 1342 u_int32_t baudrate; 1343 }; 1344 1345 struct pf_ifspeed_v1 { 1346 char ifname[IFNAMSIZ]; 1347 u_int32_t baudrate32; 1348 /* layout identical to struct pf_ifspeed_v0 up to this point */ 1349 u_int64_t baudrate; 1350 }; 1351 1352 /* Latest version of struct pf_ifspeed_vX */ 1353 #define PF_IFSPEED_VERSION 1 1354 1355 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0) 1356 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1) 1357 1358 /* 1359 * Compatibility and convenience macros 1360 */ 1361 #ifndef _KERNEL 1362 #ifdef PFIOC_USE_LATEST 1363 /* 1364 * Maintaining in-tree consumers of the ioctl interface is easier when that 1365 * code can be written in terms old names that refer to the latest interface 1366 * version as that reduces the required changes in the consumers to those 1367 * that are functionally necessary to accommodate a new interface version. 1368 */ 1369 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION) 1370 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION) 1371 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION) 1372 1373 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION) 1374 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION) 1375 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION) 1376 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION) 1377 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION) 1378 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION) 1379 #else 1380 /* 1381 * When building out-of-tree code that is written for the old interface, 1382 * such as may exist in ports for example, resolve the old struct tags and 1383 * ioctl command names to the v0 versions. 1384 */ 1385 #define pfioc_altq __CONCAT(pfioc_altq_v, 0) 1386 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0) 1387 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0) 1388 1389 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0) 1390 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0) 1391 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0) 1392 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0) 1393 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0) 1394 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0) 1395 #endif /* PFIOC_USE_LATEST */ 1396 #endif /* _KERNEL */ 1397 1398 #ifdef _KERNEL 1399 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node); 1400 struct pf_srchash { 1401 struct pf_ksrc_node_list nodes; 1402 struct mtx lock; 1403 }; 1404 1405 struct pf_keyhash { 1406 LIST_HEAD(, pf_state_key) keys; 1407 struct mtx lock; 1408 }; 1409 1410 struct pf_idhash { 1411 LIST_HEAD(, pf_state) states; 1412 struct mtx lock; 1413 }; 1414 1415 extern u_long pf_hashmask; 1416 extern u_long pf_srchashmask; 1417 #define PF_HASHSIZ (131072) 1418 #define PF_SRCHASHSIZ (PF_HASHSIZ/4) 1419 VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1420 VNET_DECLARE(struct pf_idhash *, pf_idhash); 1421 #define V_pf_keyhash VNET(pf_keyhash) 1422 #define V_pf_idhash VNET(pf_idhash) 1423 VNET_DECLARE(struct pf_srchash *, pf_srchash); 1424 #define V_pf_srchash VNET(pf_srchash) 1425 1426 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1)) 1427 1428 VNET_DECLARE(void *, pf_swi_cookie); 1429 #define V_pf_swi_cookie VNET(pf_swi_cookie) 1430 VNET_DECLARE(struct intr_event *, pf_swi_ie); 1431 #define V_pf_swi_ie VNET(pf_swi_ie) 1432 1433 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1434 #define V_pf_stateid VNET(pf_stateid) 1435 1436 TAILQ_HEAD(pf_altqqueue, pf_altq); 1437 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]); 1438 #define V_pf_altqs VNET(pf_altqs) 1439 VNET_DECLARE(struct pf_kpalist, pf_pabuf); 1440 #define V_pf_pabuf VNET(pf_pabuf) 1441 1442 VNET_DECLARE(u_int32_t, ticket_altqs_active); 1443 #define V_ticket_altqs_active VNET(ticket_altqs_active) 1444 VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1445 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1446 VNET_DECLARE(int, altqs_inactive_open); 1447 #define V_altqs_inactive_open VNET(altqs_inactive_open) 1448 VNET_DECLARE(u_int32_t, ticket_pabuf); 1449 #define V_ticket_pabuf VNET(ticket_pabuf) 1450 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1451 #define V_pf_altqs_active VNET(pf_altqs_active) 1452 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active); 1453 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active) 1454 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1455 #define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1456 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive); 1457 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive) 1458 1459 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules); 1460 #define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1461 1462 void pf_initialize(void); 1463 void pf_mtag_initialize(void); 1464 void pf_mtag_cleanup(void); 1465 void pf_cleanup(void); 1466 1467 struct pf_mtag *pf_get_mtag(struct mbuf *); 1468 1469 extern void pf_calc_skip_steps(struct pf_krulequeue *); 1470 #ifdef ALTQ 1471 extern void pf_altq_ifnet_event(struct ifnet *, int); 1472 #endif 1473 VNET_DECLARE(uma_zone_t, pf_state_z); 1474 #define V_pf_state_z VNET(pf_state_z) 1475 VNET_DECLARE(uma_zone_t, pf_state_key_z); 1476 #define V_pf_state_key_z VNET(pf_state_key_z) 1477 VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1478 #define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1479 1480 extern void pf_purge_thread(void *); 1481 extern void pf_unload_vnet_purge(void); 1482 extern void pf_intr(void *); 1483 extern void pf_purge_expired_src_nodes(void); 1484 1485 extern int pf_unlink_state(struct pf_state *, u_int); 1486 #define PF_ENTER_LOCKED 0x00000001 1487 #define PF_RETURN_LOCKED 0x00000002 1488 extern int pf_state_insert(struct pfi_kkif *, 1489 struct pfi_kkif *, 1490 struct pf_state_key *, 1491 struct pf_state_key *, 1492 struct pf_state *); 1493 extern void pf_free_state(struct pf_state *); 1494 1495 static __inline void 1496 pf_ref_state(struct pf_state *s) 1497 { 1498 1499 refcount_acquire(&s->refs); 1500 } 1501 1502 static __inline int 1503 pf_release_state(struct pf_state *s) 1504 { 1505 1506 if (refcount_release(&s->refs)) { 1507 pf_free_state(s); 1508 return (1); 1509 } else 1510 return (0); 1511 } 1512 1513 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t); 1514 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1515 u_int, int *); 1516 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *, 1517 struct pf_krule *, sa_family_t, int); 1518 extern void pf_unlink_src_node(struct pf_ksrc_node *); 1519 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *); 1520 extern void pf_print_state(struct pf_state *); 1521 extern void pf_print_flags(u_int8_t); 1522 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1523 u_int8_t); 1524 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 1525 u_int16_t, u_int16_t, u_int8_t); 1526 1527 VNET_DECLARE(struct ifnet *, sync_ifp); 1528 #define V_sync_ifp VNET(sync_ifp); 1529 VNET_DECLARE(struct pf_krule, pf_default_rule); 1530 #define V_pf_default_rule VNET(pf_default_rule) 1531 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1532 u_int8_t); 1533 void pf_free_rule(struct pf_krule *); 1534 1535 #ifdef INET 1536 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1537 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *, 1538 struct pf_pdesc *); 1539 #endif /* INET */ 1540 1541 #ifdef INET6 1542 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *); 1543 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *, 1544 struct pf_pdesc *); 1545 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1546 struct pf_addr *, struct pf_addr *, u_int8_t); 1547 void pf_addr_inc(struct pf_addr *, sa_family_t); 1548 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *); 1549 #endif /* INET6 */ 1550 1551 u_int32_t pf_new_isn(struct pf_state *); 1552 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1553 sa_family_t); 1554 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1555 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 1556 u_int8_t); 1557 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 1558 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t, 1559 bool, u_int8_t); 1560 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t, 1561 bool, u_int8_t); 1562 void pf_send_deferred_syn(struct pf_state *); 1563 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1564 struct pf_addr *, sa_family_t); 1565 int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1566 struct pf_addr *, sa_family_t); 1567 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1568 1569 void pf_normalize_init(void); 1570 void pf_normalize_cleanup(void); 1571 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *, 1572 struct pf_pdesc *); 1573 void pf_normalize_tcp_cleanup(struct pf_state *); 1574 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1575 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1576 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1577 u_short *, struct tcphdr *, struct pf_state *, 1578 struct pf_state_peer *, struct pf_state_peer *, int *); 1579 u_int32_t 1580 pf_state_expires(const struct pf_state *); 1581 void pf_purge_expired_fragments(void); 1582 void pf_purge_fragments(uint32_t); 1583 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *, 1584 int); 1585 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 1586 struct pf_state_key *pf_alloc_state_key(int); 1587 void pfr_initialize(void); 1588 void pfr_cleanup(void); 1589 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1590 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1591 u_int64_t, int, int, int); 1592 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 1593 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1594 struct pfr_ktable * 1595 pfr_attach_table(struct pf_kruleset *, char *); 1596 void pfr_detach_table(struct pfr_ktable *); 1597 int pfr_clr_tables(struct pfr_table *, int *, int); 1598 int pfr_add_tables(struct pfr_table *, int, int *, int); 1599 int pfr_del_tables(struct pfr_table *, int, int *, int); 1600 int pfr_table_count(struct pfr_table *, int); 1601 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1602 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1603 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1604 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1605 int pfr_clr_addrs(struct pfr_table *, int *, int); 1606 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1607 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1608 int); 1609 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1610 int); 1611 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1612 int *, int *, int *, int, u_int32_t); 1613 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1614 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1615 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1616 int); 1617 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1618 int); 1619 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1620 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1621 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1622 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1623 int *, u_int32_t, int); 1624 1625 MALLOC_DECLARE(PFI_MTYPE); 1626 VNET_DECLARE(struct pfi_kkif *, pfi_all); 1627 #define V_pfi_all VNET(pfi_all) 1628 1629 void pfi_initialize(void); 1630 void pfi_initialize_vnet(void); 1631 void pfi_cleanup(void); 1632 void pfi_cleanup_vnet(void); 1633 void pfi_kkif_ref(struct pfi_kkif *); 1634 void pfi_kkif_unref(struct pfi_kkif *); 1635 struct pfi_kkif *pfi_kkif_find(const char *); 1636 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *); 1637 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *); 1638 void pfi_kkif_purge(void); 1639 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1640 sa_family_t); 1641 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1642 void pfi_dynaddr_remove(struct pfi_dynaddr *); 1643 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1644 void pfi_update_status(const char *, struct pf_status *); 1645 void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 1646 int pfi_set_flags(const char *, int); 1647 int pfi_clear_flags(const char *, int); 1648 1649 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int); 1650 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 1651 int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 1652 sa_family_t); 1653 void pf_qid2qname(u_int32_t, char *); 1654 1655 VNET_DECLARE(struct pf_kstatus, pf_status); 1656 #define V_pf_status VNET(pf_status) 1657 1658 struct pf_limit { 1659 uma_zone_t zone; 1660 u_int limit; 1661 }; 1662 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 1663 #define V_pf_limits VNET(pf_limits) 1664 1665 #endif /* _KERNEL */ 1666 1667 #ifdef _KERNEL 1668 VNET_DECLARE(struct pf_kanchor_global, pf_anchors); 1669 #define V_pf_anchors VNET(pf_anchors) 1670 VNET_DECLARE(struct pf_kanchor, pf_main_anchor); 1671 #define V_pf_main_anchor VNET(pf_main_anchor) 1672 #define pf_main_ruleset V_pf_main_anchor.ruleset 1673 1674 void pf_init_kruleset(struct pf_kruleset *); 1675 int pf_kanchor_setup(struct pf_krule *, 1676 const struct pf_kruleset *, const char *); 1677 int pf_kanchor_nvcopyout(const struct pf_kruleset *, 1678 const struct pf_krule *, nvlist_t *); 1679 int pf_kanchor_copyout(const struct pf_kruleset *, 1680 const struct pf_krule *, struct pfioc_rule *); 1681 void pf_kanchor_remove(struct pf_krule *); 1682 void pf_remove_if_empty_kruleset(struct pf_kruleset *); 1683 struct pf_kruleset *pf_find_kruleset(const char *); 1684 struct pf_kruleset *pf_find_or_create_kruleset(const char *); 1685 void pf_rs_initialize(void); 1686 1687 void pf_krule_free(struct pf_krule *); 1688 #endif 1689 1690 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1691 int pf_osfp_add(struct pf_osfp_ioctl *); 1692 #ifdef _KERNEL 1693 struct pf_osfp_enlist * 1694 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1695 const struct tcphdr *); 1696 #endif /* _KERNEL */ 1697 void pf_osfp_flush(void); 1698 int pf_osfp_get(struct pf_osfp_ioctl *); 1699 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1700 1701 #ifdef _KERNEL 1702 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 1703 1704 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *, 1705 struct pf_kruleset **, int, struct pf_krule **, 1706 struct pf_krule **, int *); 1707 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *, 1708 struct pf_kruleset **, int, struct pf_krule **, 1709 struct pf_krule **, int *); 1710 1711 int pf_map_addr(u_int8_t, struct pf_krule *, 1712 struct pf_addr *, struct pf_addr *, 1713 struct pf_addr *, struct pf_ksrc_node **); 1714 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 1715 int, int, struct pfi_kkif *, struct pf_ksrc_node **, 1716 struct pf_state_key **, struct pf_state_key **, 1717 struct pf_addr *, struct pf_addr *, 1718 uint16_t, uint16_t, struct pf_kanchor_stackframe *); 1719 1720 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 1721 struct pf_addr *, u_int16_t, u_int16_t); 1722 struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 1723 1724 struct pfi_kkif *pf_kkif_create(int); 1725 void pf_kkif_free(struct pfi_kkif *); 1726 void pf_kkif_zero(struct pfi_kkif *); 1727 #endif /* _KERNEL */ 1728 1729 #endif /* _NET_PFVAR_H_ */ 1730