pfvar.h revision 263086
1/* 2 * Copyright (c) 2001 Daniel Hartmeier 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * - Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * - Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following 13 * disclaimer in the documentation and/or other materials provided 14 * with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 20 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $ 30 * $FreeBSD: stable/10/sys/net/pfvar.h 263086 2014-03-12 10:45:58Z glebius $ 31 */ 32 33#ifndef _NET_PFVAR_H_ 34#define _NET_PFVAR_H_ 35 36#include <sys/param.h> 37#include <sys/queue.h> 38#include <sys/counter.h> 39#include <sys/refcount.h> 40#include <sys/tree.h> 41 42#include <net/radix.h> 43#include <netinet/in.h> 44 45#include <netpfil/pf/pf.h> 46#include <netpfil/pf/pf_altq.h> 47#include <netpfil/pf/pf_mtag.h> 48 49struct pf_addr { 50 union { 51 struct in_addr v4; 52 struct in6_addr v6; 53 u_int8_t addr8[16]; 54 u_int16_t addr16[8]; 55 u_int32_t addr32[4]; 56 } pfa; /* 128-bit address */ 57#define v4 pfa.v4 58#define v6 pfa.v6 59#define addr8 pfa.addr8 60#define addr16 pfa.addr16 61#define addr32 pfa.addr32 62}; 63 64#define PFI_AFLAG_NETWORK 0x01 65#define PFI_AFLAG_BROADCAST 0x02 66#define PFI_AFLAG_PEER 0x04 67#define PFI_AFLAG_MODEMASK 0x07 68#define PFI_AFLAG_NOALIAS 0x08 69 70struct pf_addr_wrap { 71 union { 72 struct { 73 struct pf_addr addr; 74 struct pf_addr mask; 75 } a; 76 char ifname[IFNAMSIZ]; 77 char tblname[PF_TABLE_NAME_SIZE]; 78 } v; 79 union { 80 struct pfi_dynaddr *dyn; 81 struct pfr_ktable *tbl; 82 int dyncnt; 83 int tblcnt; 84 } p; 85 u_int8_t type; /* PF_ADDR_* */ 86 u_int8_t iflags; /* PFI_AFLAG_* */ 87}; 88 89#ifdef _KERNEL 90 91struct pfi_dynaddr { 92 TAILQ_ENTRY(pfi_dynaddr) entry; 93 struct pf_addr pfid_addr4; 94 struct pf_addr pfid_mask4; 95 struct pf_addr pfid_addr6; 96 struct pf_addr pfid_mask6; 97 struct pfr_ktable *pfid_kt; 98 struct pfi_kif *pfid_kif; 99 int pfid_net; /* mask or 128 */ 100 int pfid_acnt4; /* address count IPv4 */ 101 int pfid_acnt6; /* address count IPv6 */ 102 sa_family_t pfid_af; /* rule af */ 103 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 104}; 105 106/* 107 * Address manipulation macros 108 */ 109#define HTONL(x) (x) = htonl((__uint32_t)(x)) 110#define HTONS(x) (x) = htons((__uint16_t)(x)) 111#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 112#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 113 114#define PF_NAME "pf" 115 116#define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 117#define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 118#define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 119 120#define PF_STATE_LOCK(s) \ 121 do { \ 122 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 123 PF_HASHROW_LOCK(_ih); \ 124 } while (0) 125 126#define PF_STATE_UNLOCK(s) \ 127 do { \ 128 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \ 129 PF_HASHROW_UNLOCK(_ih); \ 130 } while (0) 131 132#ifdef INVARIANTS 133#define PF_STATE_LOCK_ASSERT(s) \ 134 do { \ 135 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 136 PF_HASHROW_ASSERT(_ih); \ 137 } while (0) 138#else /* !INVARIANTS */ 139#define PF_STATE_LOCK_ASSERT(s) do {} while (0) 140#endif /* INVARIANTS */ 141 142extern struct mtx pf_unlnkdrules_mtx; 143#define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 144#define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 145 146extern struct rwlock pf_rules_lock; 147#define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock) 148#define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock) 149#define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock) 150#define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock) 151#define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED) 152#define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED) 153#define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED) 154 155#define PF_MODVER 1 156#define PFLOG_MODVER 1 157#define PFSYNC_MODVER 1 158 159#define PFLOG_MINVER 1 160#define PFLOG_PREFVER PFLOG_MODVER 161#define PFLOG_MAXVER 1 162#define PFSYNC_MINVER 1 163#define PFSYNC_PREFVER PFSYNC_MODVER 164#define PFSYNC_MAXVER 1 165 166#ifdef INET 167#ifndef INET6 168#define PF_INET_ONLY 169#endif /* ! INET6 */ 170#endif /* INET */ 171 172#ifdef INET6 173#ifndef INET 174#define PF_INET6_ONLY 175#endif /* ! INET */ 176#endif /* INET6 */ 177 178#ifdef INET 179#ifdef INET6 180#define PF_INET_INET6 181#endif /* INET6 */ 182#endif /* INET */ 183 184#else 185 186#define PF_INET_INET6 187 188#endif /* _KERNEL */ 189 190/* Both IPv4 and IPv6 */ 191#ifdef PF_INET_INET6 192 193#define PF_AEQ(a, b, c) \ 194 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 195 ((a)->addr32[3] == (b)->addr32[3] && \ 196 (a)->addr32[2] == (b)->addr32[2] && \ 197 (a)->addr32[1] == (b)->addr32[1] && \ 198 (a)->addr32[0] == (b)->addr32[0])) \ 199 200#define PF_ANEQ(a, b, c) \ 201 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 202 ((a)->addr32[3] != (b)->addr32[3] || \ 203 (a)->addr32[2] != (b)->addr32[2] || \ 204 (a)->addr32[1] != (b)->addr32[1] || \ 205 (a)->addr32[0] != (b)->addr32[0])) \ 206 207#define PF_AZERO(a, c) \ 208 ((c == AF_INET && !(a)->addr32[0]) || \ 209 (!(a)->addr32[0] && !(a)->addr32[1] && \ 210 !(a)->addr32[2] && !(a)->addr32[3] )) \ 211 212#define PF_MATCHA(n, a, m, b, f) \ 213 pf_match_addr(n, a, m, b, f) 214 215#define PF_ACPY(a, b, f) \ 216 pf_addrcpy(a, b, f) 217 218#define PF_AINC(a, f) \ 219 pf_addr_inc(a, f) 220 221#define PF_POOLMASK(a, b, c, d, f) \ 222 pf_poolmask(a, b, c, d, f) 223 224#else 225 226/* Just IPv6 */ 227 228#ifdef PF_INET6_ONLY 229 230#define PF_AEQ(a, b, c) \ 231 ((a)->addr32[3] == (b)->addr32[3] && \ 232 (a)->addr32[2] == (b)->addr32[2] && \ 233 (a)->addr32[1] == (b)->addr32[1] && \ 234 (a)->addr32[0] == (b)->addr32[0]) \ 235 236#define PF_ANEQ(a, b, c) \ 237 ((a)->addr32[3] != (b)->addr32[3] || \ 238 (a)->addr32[2] != (b)->addr32[2] || \ 239 (a)->addr32[1] != (b)->addr32[1] || \ 240 (a)->addr32[0] != (b)->addr32[0]) \ 241 242#define PF_AZERO(a, c) \ 243 (!(a)->addr32[0] && \ 244 !(a)->addr32[1] && \ 245 !(a)->addr32[2] && \ 246 !(a)->addr32[3] ) \ 247 248#define PF_MATCHA(n, a, m, b, f) \ 249 pf_match_addr(n, a, m, b, f) 250 251#define PF_ACPY(a, b, f) \ 252 pf_addrcpy(a, b, f) 253 254#define PF_AINC(a, f) \ 255 pf_addr_inc(a, f) 256 257#define PF_POOLMASK(a, b, c, d, f) \ 258 pf_poolmask(a, b, c, d, f) 259 260#else 261 262/* Just IPv4 */ 263#ifdef PF_INET_ONLY 264 265#define PF_AEQ(a, b, c) \ 266 ((a)->addr32[0] == (b)->addr32[0]) 267 268#define PF_ANEQ(a, b, c) \ 269 ((a)->addr32[0] != (b)->addr32[0]) 270 271#define PF_AZERO(a, c) \ 272 (!(a)->addr32[0]) 273 274#define PF_MATCHA(n, a, m, b, f) \ 275 pf_match_addr(n, a, m, b, f) 276 277#define PF_ACPY(a, b, f) \ 278 (a)->v4.s_addr = (b)->v4.s_addr 279 280#define PF_AINC(a, f) \ 281 do { \ 282 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 283 } while (0) 284 285#define PF_POOLMASK(a, b, c, d, f) \ 286 do { \ 287 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 288 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 289 } while (0) 290 291#endif /* PF_INET_ONLY */ 292#endif /* PF_INET6_ONLY */ 293#endif /* PF_INET_INET6 */ 294 295/* 296 * XXX callers not FIB-aware in our version of pf yet. 297 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 298 */ 299#define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 300 ( \ 301 (((aw)->type == PF_ADDR_NOROUTE && \ 302 pf_routable((x), (af), NULL, (rtid))) || \ 303 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 304 pf_routable((x), (af), (ifp), (rtid))) || \ 305 ((aw)->type == PF_ADDR_TABLE && \ 306 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 307 ((aw)->type == PF_ADDR_DYNIFTL && \ 308 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 309 ((aw)->type == PF_ADDR_RANGE && \ 310 !pf_match_addr_range(&(aw)->v.a.addr, \ 311 &(aw)->v.a.mask, (x), (af))) || \ 312 ((aw)->type == PF_ADDR_ADDRMASK && \ 313 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 314 !PF_MATCHA(0, &(aw)->v.a.addr, \ 315 &(aw)->v.a.mask, (x), (af))))) != \ 316 (neg) \ 317 ) 318 319 320struct pf_rule_uid { 321 uid_t uid[2]; 322 u_int8_t op; 323}; 324 325struct pf_rule_gid { 326 uid_t gid[2]; 327 u_int8_t op; 328}; 329 330struct pf_rule_addr { 331 struct pf_addr_wrap addr; 332 u_int16_t port[2]; 333 u_int8_t neg; 334 u_int8_t port_op; 335}; 336 337struct pf_pooladdr { 338 struct pf_addr_wrap addr; 339 TAILQ_ENTRY(pf_pooladdr) entries; 340 char ifname[IFNAMSIZ]; 341 struct pfi_kif *kif; 342}; 343 344TAILQ_HEAD(pf_palist, pf_pooladdr); 345 346struct pf_poolhashkey { 347 union { 348 u_int8_t key8[16]; 349 u_int16_t key16[8]; 350 u_int32_t key32[4]; 351 } pfk; /* 128-bit hash key */ 352#define key8 pfk.key8 353#define key16 pfk.key16 354#define key32 pfk.key32 355}; 356 357struct pf_pool { 358 struct pf_palist list; 359 struct pf_pooladdr *cur; 360 struct pf_poolhashkey key; 361 struct pf_addr counter; 362 int tblidx; 363 u_int16_t proxy_port[2]; 364 u_int8_t opts; 365}; 366 367 368/* A packed Operating System description for fingerprinting */ 369typedef u_int32_t pf_osfp_t; 370#define PF_OSFP_ANY ((pf_osfp_t)0) 371#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 372#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 373 374struct pf_osfp_entry { 375 SLIST_ENTRY(pf_osfp_entry) fp_entry; 376 pf_osfp_t fp_os; 377 int fp_enflags; 378#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 379#define PF_OSFP_GENERIC 0x002 /* generic signature */ 380#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 381#define PF_OSFP_LEN 32 382 char fp_class_nm[PF_OSFP_LEN]; 383 char fp_version_nm[PF_OSFP_LEN]; 384 char fp_subtype_nm[PF_OSFP_LEN]; 385}; 386#define PF_OSFP_ENTRY_EQ(a, b) \ 387 ((a)->fp_os == (b)->fp_os && \ 388 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 389 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 390 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 391 392/* handle pf_osfp_t packing */ 393#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 394#define _FP_UNUSED_BITS 1 395#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 396#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 397#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 398#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 399 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 400 ((1 << _FP_CLASS_BITS) - 1); \ 401 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 402 ((1 << _FP_VERSION_BITS) - 1);\ 403 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 404} while(0) 405#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 406 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 407 + _FP_SUBTYPE_BITS); \ 408 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 409 _FP_SUBTYPE_BITS; \ 410 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 411} while(0) 412 413/* the fingerprint of an OSes TCP SYN packet */ 414typedef u_int64_t pf_tcpopts_t; 415struct pf_os_fingerprint { 416 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 417 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 418 u_int16_t fp_wsize; /* TCP window size */ 419 u_int16_t fp_psize; /* ip->ip_len */ 420 u_int16_t fp_mss; /* TCP MSS */ 421 u_int16_t fp_flags; 422#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 423#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 424#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 425#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 426#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 427#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 428#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 429#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 430#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 431#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 432#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 433#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 434#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 435#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 436#define PF_OSFP_INET6 0x4000 /* IPv6 */ 437 u_int8_t fp_optcnt; /* TCP option count */ 438 u_int8_t fp_wscale; /* TCP window scaling */ 439 u_int8_t fp_ttl; /* IPv4 TTL */ 440#define PF_OSFP_MAXTTL_OFFSET 40 441/* TCP options packing */ 442#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 443#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 444#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 445#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 446#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 447#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 448#define PF_OSFP_MAX_OPTS \ 449 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 450 / PF_OSFP_TCPOPT_BITS 451 452 SLIST_ENTRY(pf_os_fingerprint) fp_next; 453}; 454 455struct pf_osfp_ioctl { 456 struct pf_osfp_entry fp_os; 457 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 458 u_int16_t fp_wsize; /* TCP window size */ 459 u_int16_t fp_psize; /* ip->ip_len */ 460 u_int16_t fp_mss; /* TCP MSS */ 461 u_int16_t fp_flags; 462 u_int8_t fp_optcnt; /* TCP option count */ 463 u_int8_t fp_wscale; /* TCP window scaling */ 464 u_int8_t fp_ttl; /* IPv4 TTL */ 465 466 int fp_getnum; /* DIOCOSFPGET number */ 467}; 468 469 470union pf_rule_ptr { 471 struct pf_rule *ptr; 472 u_int32_t nr; 473}; 474 475#define PF_ANCHOR_NAME_SIZE 64 476 477struct pf_rule { 478 struct pf_rule_addr src; 479 struct pf_rule_addr dst; 480#define PF_SKIP_IFP 0 481#define PF_SKIP_DIR 1 482#define PF_SKIP_AF 2 483#define PF_SKIP_PROTO 3 484#define PF_SKIP_SRC_ADDR 4 485#define PF_SKIP_SRC_PORT 5 486#define PF_SKIP_DST_ADDR 6 487#define PF_SKIP_DST_PORT 7 488#define PF_SKIP_COUNT 8 489 union pf_rule_ptr skip[PF_SKIP_COUNT]; 490#define PF_RULE_LABEL_SIZE 64 491 char label[PF_RULE_LABEL_SIZE]; 492 char ifname[IFNAMSIZ]; 493 char qname[PF_QNAME_SIZE]; 494 char pqname[PF_QNAME_SIZE]; 495#define PF_TAG_NAME_SIZE 64 496 char tagname[PF_TAG_NAME_SIZE]; 497 char match_tagname[PF_TAG_NAME_SIZE]; 498 499 char overload_tblname[PF_TABLE_NAME_SIZE]; 500 501 TAILQ_ENTRY(pf_rule) entries; 502 struct pf_pool rpool; 503 504 u_int64_t evaluations; 505 u_int64_t packets[2]; 506 u_int64_t bytes[2]; 507 508 struct pfi_kif *kif; 509 struct pf_anchor *anchor; 510 struct pfr_ktable *overload_tbl; 511 512 pf_osfp_t os_fingerprint; 513 514 int rtableid; 515 u_int32_t timeout[PFTM_MAX]; 516 u_int32_t max_states; 517 u_int32_t max_src_nodes; 518 u_int32_t max_src_states; 519 u_int32_t max_src_conn; 520 struct { 521 u_int32_t limit; 522 u_int32_t seconds; 523 } max_src_conn_rate; 524 u_int32_t qid; 525 u_int32_t pqid; 526 u_int32_t rt_listid; 527 u_int32_t nr; 528 u_int32_t prob; 529 uid_t cuid; 530 pid_t cpid; 531 532 counter_u64_t states_cur; 533 counter_u64_t states_tot; 534 counter_u64_t src_nodes; 535 536 u_int16_t return_icmp; 537 u_int16_t return_icmp6; 538 u_int16_t max_mss; 539 u_int16_t tag; 540 u_int16_t match_tag; 541 u_int16_t spare2; /* netgraph */ 542 543 struct pf_rule_uid uid; 544 struct pf_rule_gid gid; 545 546 u_int32_t rule_flag; 547 u_int8_t action; 548 u_int8_t direction; 549 u_int8_t log; 550 u_int8_t logif; 551 u_int8_t quick; 552 u_int8_t ifnot; 553 u_int8_t match_tag_not; 554 u_int8_t natpass; 555 556#define PF_STATE_NORMAL 0x1 557#define PF_STATE_MODULATE 0x2 558#define PF_STATE_SYNPROXY 0x3 559 u_int8_t keep_state; 560 sa_family_t af; 561 u_int8_t proto; 562 u_int8_t type; 563 u_int8_t code; 564 u_int8_t flags; 565 u_int8_t flagset; 566 u_int8_t min_ttl; 567 u_int8_t allow_opts; 568 u_int8_t rt; 569 u_int8_t return_ttl; 570 u_int8_t tos; 571 u_int8_t set_tos; 572 u_int8_t anchor_relative; 573 u_int8_t anchor_wildcard; 574 575#define PF_FLUSH 0x01 576#define PF_FLUSH_GLOBAL 0x02 577 u_int8_t flush; 578 579 struct { 580 struct pf_addr addr; 581 u_int16_t port; 582 } divert; 583 584 uint64_t u_states_cur; 585 uint64_t u_states_tot; 586 uint64_t u_src_nodes; 587}; 588 589/* rule flags */ 590#define PFRULE_DROP 0x0000 591#define PFRULE_RETURNRST 0x0001 592#define PFRULE_FRAGMENT 0x0002 593#define PFRULE_RETURNICMP 0x0004 594#define PFRULE_RETURN 0x0008 595#define PFRULE_NOSYNC 0x0010 596#define PFRULE_SRCTRACK 0x0020 /* track source states */ 597#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 598#define PFRULE_REFS 0x0080 /* rule has references */ 599 600/* scrub flags */ 601#define PFRULE_NODF 0x0100 602#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 603#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 604#define PFRULE_RANDOMID 0x0800 605#define PFRULE_REASSEMBLE_TCP 0x1000 606#define PFRULE_SET_TOS 0x2000 607 608/* rule flags again */ 609#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 610#define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */ 611 612#define PFSTATE_HIWAT 10000 /* default state table size */ 613#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 614#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 615 616 617struct pf_threshold { 618 u_int32_t limit; 619#define PF_THRESHOLD_MULT 1000 620#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 621 u_int32_t seconds; 622 u_int32_t count; 623 u_int32_t last; 624}; 625 626struct pf_src_node { 627 LIST_ENTRY(pf_src_node) entry; 628 struct pf_addr addr; 629 struct pf_addr raddr; 630 union pf_rule_ptr rule; 631 struct pfi_kif *kif; 632 u_int64_t bytes[2]; 633 u_int64_t packets[2]; 634 u_int32_t states; 635 u_int32_t conn; 636 struct pf_threshold conn_rate; 637 u_int32_t creation; 638 u_int32_t expire; 639 sa_family_t af; 640 u_int8_t ruletype; 641}; 642 643#define PFSNODE_HIWAT 10000 /* default source node table size */ 644 645struct pf_state_scrub { 646 struct timeval pfss_last; /* time received last packet */ 647 u_int32_t pfss_tsecr; /* last echoed timestamp */ 648 u_int32_t pfss_tsval; /* largest timestamp */ 649 u_int32_t pfss_tsval0; /* original timestamp */ 650 u_int16_t pfss_flags; 651#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 652#define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 653#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 654#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 655#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 656 u_int8_t pfss_ttl; /* stashed TTL */ 657 u_int8_t pad; 658 u_int32_t pfss_ts_mod; /* timestamp modulation */ 659}; 660 661struct pf_state_host { 662 struct pf_addr addr; 663 u_int16_t port; 664 u_int16_t pad; 665}; 666 667struct pf_state_peer { 668 struct pf_state_scrub *scrub; /* state is scrubbed */ 669 u_int32_t seqlo; /* Max sequence number sent */ 670 u_int32_t seqhi; /* Max the other end ACKd + win */ 671 u_int32_t seqdiff; /* Sequence number modulator */ 672 u_int16_t max_win; /* largest window (pre scaling) */ 673 u_int16_t mss; /* Maximum segment size option */ 674 u_int8_t state; /* active state level */ 675 u_int8_t wscale; /* window scaling factor */ 676 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 677 u_int8_t pad[1]; 678}; 679 680/* Keep synced with struct pf_state_key. */ 681struct pf_state_key_cmp { 682 struct pf_addr addr[2]; 683 u_int16_t port[2]; 684 sa_family_t af; 685 u_int8_t proto; 686 u_int8_t pad[2]; 687}; 688 689struct pf_state_key { 690 struct pf_addr addr[2]; 691 u_int16_t port[2]; 692 sa_family_t af; 693 u_int8_t proto; 694 u_int8_t pad[2]; 695 696 LIST_ENTRY(pf_state_key) entry; 697 TAILQ_HEAD(, pf_state) states[2]; 698}; 699 700/* Keep synced with struct pf_state. */ 701struct pf_state_cmp { 702 u_int64_t id; 703 u_int32_t creatorid; 704 u_int8_t direction; 705 u_int8_t pad[3]; 706}; 707 708struct pf_state { 709 u_int64_t id; 710 u_int32_t creatorid; 711 u_int8_t direction; 712 u_int8_t pad[3]; 713 714 u_int refs; 715 TAILQ_ENTRY(pf_state) sync_list; 716 TAILQ_ENTRY(pf_state) key_list[2]; 717 LIST_ENTRY(pf_state) entry; 718 struct pf_state_peer src; 719 struct pf_state_peer dst; 720 union pf_rule_ptr rule; 721 union pf_rule_ptr anchor; 722 union pf_rule_ptr nat_rule; 723 struct pf_addr rt_addr; 724 struct pf_state_key *key[2]; /* addresses stack and wire */ 725 struct pfi_kif *kif; 726 struct pfi_kif *rt_kif; 727 struct pf_src_node *src_node; 728 struct pf_src_node *nat_src_node; 729 u_int64_t packets[2]; 730 u_int64_t bytes[2]; 731 u_int32_t creation; 732 u_int32_t expire; 733 u_int32_t pfsync_time; 734 u_int16_t tag; 735 u_int8_t log; 736 u_int8_t state_flags; 737#define PFSTATE_ALLOWOPTS 0x01 738#define PFSTATE_SLOPPY 0x02 739/* was PFSTATE_PFLOW 0x04 */ 740#define PFSTATE_NOSYNC 0x08 741#define PFSTATE_ACK 0x10 742 u_int8_t timeout; 743 u_int8_t sync_state; /* PFSYNC_S_x */ 744 745 /* XXX */ 746 u_int8_t sync_updates; 747 u_int8_t _tail[3]; 748}; 749 750/* 751 * Unified state structures for pulling states out of the kernel 752 * used by pfsync(4) and the pf(4) ioctl. 753 */ 754struct pfsync_state_scrub { 755 u_int16_t pfss_flags; 756 u_int8_t pfss_ttl; /* stashed TTL */ 757#define PFSYNC_SCRUB_FLAG_VALID 0x01 758 u_int8_t scrub_flag; 759 u_int32_t pfss_ts_mod; /* timestamp modulation */ 760} __packed; 761 762struct pfsync_state_peer { 763 struct pfsync_state_scrub scrub; /* state is scrubbed */ 764 u_int32_t seqlo; /* Max sequence number sent */ 765 u_int32_t seqhi; /* Max the other end ACKd + win */ 766 u_int32_t seqdiff; /* Sequence number modulator */ 767 u_int16_t max_win; /* largest window (pre scaling) */ 768 u_int16_t mss; /* Maximum segment size option */ 769 u_int8_t state; /* active state level */ 770 u_int8_t wscale; /* window scaling factor */ 771 u_int8_t pad[6]; 772} __packed; 773 774struct pfsync_state_key { 775 struct pf_addr addr[2]; 776 u_int16_t port[2]; 777}; 778 779struct pfsync_state { 780 u_int64_t id; 781 char ifname[IFNAMSIZ]; 782 struct pfsync_state_key key[2]; 783 struct pfsync_state_peer src; 784 struct pfsync_state_peer dst; 785 struct pf_addr rt_addr; 786 u_int32_t rule; 787 u_int32_t anchor; 788 u_int32_t nat_rule; 789 u_int32_t creation; 790 u_int32_t expire; 791 u_int32_t packets[2][2]; 792 u_int32_t bytes[2][2]; 793 u_int32_t creatorid; 794 sa_family_t af; 795 u_int8_t proto; 796 u_int8_t direction; 797 u_int8_t __spare[2]; 798 u_int8_t log; 799 u_int8_t state_flags; 800 u_int8_t timeout; 801 u_int8_t sync_flags; 802 u_int8_t updates; 803} __packed; 804 805#ifdef _KERNEL 806/* pfsync */ 807typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 808typedef void pfsync_insert_state_t(struct pf_state *); 809typedef void pfsync_update_state_t(struct pf_state *); 810typedef void pfsync_delete_state_t(struct pf_state *); 811typedef void pfsync_clear_states_t(u_int32_t, const char *); 812typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 813 814extern pfsync_state_import_t *pfsync_state_import_ptr; 815extern pfsync_insert_state_t *pfsync_insert_state_ptr; 816extern pfsync_update_state_t *pfsync_update_state_ptr; 817extern pfsync_delete_state_t *pfsync_delete_state_ptr; 818extern pfsync_clear_states_t *pfsync_clear_states_ptr; 819extern pfsync_defer_t *pfsync_defer_ptr; 820 821void pfsync_state_export(struct pfsync_state *, 822 struct pf_state *); 823 824/* pflog */ 825struct pf_ruleset; 826struct pf_pdesc; 827typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t, 828 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 829 struct pf_ruleset *, struct pf_pdesc *, int); 830extern pflog_packet_t *pflog_packet_ptr; 831 832#define V_pf_end_threads VNET(pf_end_threads) 833#endif /* _KERNEL */ 834 835#define PFSYNC_FLAG_SRCNODE 0x04 836#define PFSYNC_FLAG_NATSRCNODE 0x08 837 838/* for copies to/from network byte order */ 839/* ioctl interface also uses network byte order */ 840#define pf_state_peer_hton(s,d) do { \ 841 (d)->seqlo = htonl((s)->seqlo); \ 842 (d)->seqhi = htonl((s)->seqhi); \ 843 (d)->seqdiff = htonl((s)->seqdiff); \ 844 (d)->max_win = htons((s)->max_win); \ 845 (d)->mss = htons((s)->mss); \ 846 (d)->state = (s)->state; \ 847 (d)->wscale = (s)->wscale; \ 848 if ((s)->scrub) { \ 849 (d)->scrub.pfss_flags = \ 850 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 851 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 852 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 853 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 854 } \ 855} while (0) 856 857#define pf_state_peer_ntoh(s,d) do { \ 858 (d)->seqlo = ntohl((s)->seqlo); \ 859 (d)->seqhi = ntohl((s)->seqhi); \ 860 (d)->seqdiff = ntohl((s)->seqdiff); \ 861 (d)->max_win = ntohs((s)->max_win); \ 862 (d)->mss = ntohs((s)->mss); \ 863 (d)->state = (s)->state; \ 864 (d)->wscale = (s)->wscale; \ 865 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 866 (d)->scrub != NULL) { \ 867 (d)->scrub->pfss_flags = \ 868 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 869 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 870 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 871 } \ 872} while (0) 873 874#define pf_state_counter_hton(s,d) do { \ 875 d[0] = htonl((s>>32)&0xffffffff); \ 876 d[1] = htonl(s&0xffffffff); \ 877} while (0) 878 879#define pf_state_counter_from_pfsync(s) \ 880 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 881 882#define pf_state_counter_ntoh(s,d) do { \ 883 d = ntohl(s[0]); \ 884 d = d<<32; \ 885 d += ntohl(s[1]); \ 886} while (0) 887 888TAILQ_HEAD(pf_rulequeue, pf_rule); 889 890struct pf_anchor; 891 892struct pf_ruleset { 893 struct { 894 struct pf_rulequeue queues[2]; 895 struct { 896 struct pf_rulequeue *ptr; 897 struct pf_rule **ptr_array; 898 u_int32_t rcount; 899 u_int32_t ticket; 900 int open; 901 } active, inactive; 902 } rules[PF_RULESET_MAX]; 903 struct pf_anchor *anchor; 904 u_int32_t tticket; 905 int tables; 906 int topen; 907}; 908 909RB_HEAD(pf_anchor_global, pf_anchor); 910RB_HEAD(pf_anchor_node, pf_anchor); 911struct pf_anchor { 912 RB_ENTRY(pf_anchor) entry_global; 913 RB_ENTRY(pf_anchor) entry_node; 914 struct pf_anchor *parent; 915 struct pf_anchor_node children; 916 char name[PF_ANCHOR_NAME_SIZE]; 917 char path[MAXPATHLEN]; 918 struct pf_ruleset ruleset; 919 int refcnt; /* anchor rules */ 920 int match; /* XXX: used for pfctl black magic */ 921}; 922RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 923RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 924 925#define PF_RESERVED_ANCHOR "_pf" 926 927#define PFR_TFLAG_PERSIST 0x00000001 928#define PFR_TFLAG_CONST 0x00000002 929#define PFR_TFLAG_ACTIVE 0x00000004 930#define PFR_TFLAG_INACTIVE 0x00000008 931#define PFR_TFLAG_REFERENCED 0x00000010 932#define PFR_TFLAG_REFDANCHOR 0x00000020 933#define PFR_TFLAG_COUNTERS 0x00000040 934/* Adjust masks below when adding flags. */ 935#define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 936 PFR_TFLAG_CONST | \ 937 PFR_TFLAG_COUNTERS) 938#define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 939 PFR_TFLAG_INACTIVE | \ 940 PFR_TFLAG_REFERENCED | \ 941 PFR_TFLAG_REFDANCHOR) 942#define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 943 PFR_TFLAG_CONST | \ 944 PFR_TFLAG_ACTIVE | \ 945 PFR_TFLAG_INACTIVE | \ 946 PFR_TFLAG_REFERENCED | \ 947 PFR_TFLAG_REFDANCHOR | \ 948 PFR_TFLAG_COUNTERS) 949 950struct pf_anchor_stackframe; 951 952struct pfr_table { 953 char pfrt_anchor[MAXPATHLEN]; 954 char pfrt_name[PF_TABLE_NAME_SIZE]; 955 u_int32_t pfrt_flags; 956 u_int8_t pfrt_fback; 957}; 958 959enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 960 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 961 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 962 963struct pfr_addr { 964 union { 965 struct in_addr _pfra_ip4addr; 966 struct in6_addr _pfra_ip6addr; 967 } pfra_u; 968 u_int8_t pfra_af; 969 u_int8_t pfra_net; 970 u_int8_t pfra_not; 971 u_int8_t pfra_fback; 972}; 973#define pfra_ip4addr pfra_u._pfra_ip4addr 974#define pfra_ip6addr pfra_u._pfra_ip6addr 975 976enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 977enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 978#define PFR_OP_XPASS PFR_OP_ADDR_MAX 979 980struct pfr_astats { 981 struct pfr_addr pfras_a; 982 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 983 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 984 long pfras_tzero; 985}; 986 987enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 988 989struct pfr_tstats { 990 struct pfr_table pfrts_t; 991 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 992 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 993 u_int64_t pfrts_match; 994 u_int64_t pfrts_nomatch; 995 long pfrts_tzero; 996 int pfrts_cnt; 997 int pfrts_refcnt[PFR_REFCNT_MAX]; 998}; 999#define pfrts_name pfrts_t.pfrt_name 1000#define pfrts_flags pfrts_t.pfrt_flags 1001 1002#ifndef _SOCKADDR_UNION_DEFINED 1003#define _SOCKADDR_UNION_DEFINED 1004union sockaddr_union { 1005 struct sockaddr sa; 1006 struct sockaddr_in sin; 1007 struct sockaddr_in6 sin6; 1008}; 1009#endif /* _SOCKADDR_UNION_DEFINED */ 1010 1011struct pfr_kcounters { 1012 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1013 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1014}; 1015 1016SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1017struct pfr_kentry { 1018 struct radix_node pfrke_node[2]; 1019 union sockaddr_union pfrke_sa; 1020 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1021 struct pfr_kcounters *pfrke_counters; 1022 long pfrke_tzero; 1023 u_int8_t pfrke_af; 1024 u_int8_t pfrke_net; 1025 u_int8_t pfrke_not; 1026 u_int8_t pfrke_mark; 1027}; 1028 1029SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1030RB_HEAD(pfr_ktablehead, pfr_ktable); 1031struct pfr_ktable { 1032 struct pfr_tstats pfrkt_ts; 1033 RB_ENTRY(pfr_ktable) pfrkt_tree; 1034 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1035 struct radix_node_head *pfrkt_ip4; 1036 struct radix_node_head *pfrkt_ip6; 1037 struct pfr_ktable *pfrkt_shadow; 1038 struct pfr_ktable *pfrkt_root; 1039 struct pf_ruleset *pfrkt_rs; 1040 long pfrkt_larg; 1041 int pfrkt_nflags; 1042}; 1043#define pfrkt_t pfrkt_ts.pfrts_t 1044#define pfrkt_name pfrkt_t.pfrt_name 1045#define pfrkt_anchor pfrkt_t.pfrt_anchor 1046#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1047#define pfrkt_flags pfrkt_t.pfrt_flags 1048#define pfrkt_cnt pfrkt_ts.pfrts_cnt 1049#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1050#define pfrkt_packets pfrkt_ts.pfrts_packets 1051#define pfrkt_bytes pfrkt_ts.pfrts_bytes 1052#define pfrkt_match pfrkt_ts.pfrts_match 1053#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1054#define pfrkt_tzero pfrkt_ts.pfrts_tzero 1055 1056/* keep synced with pfi_kif, used in RB_FIND */ 1057struct pfi_kif_cmp { 1058 char pfik_name[IFNAMSIZ]; 1059}; 1060 1061struct pfi_kif { 1062 char pfik_name[IFNAMSIZ]; 1063 union { 1064 RB_ENTRY(pfi_kif) _pfik_tree; 1065 LIST_ENTRY(pfi_kif) _pfik_list; 1066 } _pfik_glue; 1067#define pfik_tree _pfik_glue._pfik_tree 1068#define pfik_list _pfik_glue._pfik_list 1069 u_int64_t pfik_packets[2][2][2]; 1070 u_int64_t pfik_bytes[2][2][2]; 1071 u_int32_t pfik_tzero; 1072 u_int pfik_flags; 1073 struct ifnet *pfik_ifp; 1074 struct ifg_group *pfik_group; 1075 u_int pfik_rulerefs; 1076 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1077}; 1078 1079#define PFI_IFLAG_REFS 0x0001 /* has state references */ 1080#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1081 1082struct pf_pdesc { 1083 struct { 1084 int done; 1085 uid_t uid; 1086 gid_t gid; 1087 } lookup; 1088 u_int64_t tot_len; /* Make Mickey money */ 1089 union { 1090 struct tcphdr *tcp; 1091 struct udphdr *udp; 1092 struct icmp *icmp; 1093#ifdef INET6 1094 struct icmp6_hdr *icmp6; 1095#endif /* INET6 */ 1096 void *any; 1097 } hdr; 1098 1099 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1100 struct pf_addr *src; /* src address */ 1101 struct pf_addr *dst; /* dst address */ 1102 u_int16_t *sport; 1103 u_int16_t *dport; 1104 struct pf_mtag *pf_mtag; 1105 1106 u_int32_t p_len; /* total length of payload */ 1107 1108 u_int16_t *ip_sum; 1109 u_int16_t *proto_sum; 1110 u_int16_t flags; /* Let SCRUB trigger behavior in 1111 * state code. Easier than tags */ 1112#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1113#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1114 sa_family_t af; 1115 u_int8_t proto; 1116 u_int8_t tos; 1117 u_int8_t dir; /* direction */ 1118 u_int8_t sidx; /* key index for source */ 1119 u_int8_t didx; /* key index for destination */ 1120}; 1121 1122/* flags for RDR options */ 1123#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1124#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1125 1126/* Counters for other things we want to keep track of */ 1127#define LCNT_STATES 0 /* states */ 1128#define LCNT_SRCSTATES 1 /* max-src-states */ 1129#define LCNT_SRCNODES 2 /* max-src-nodes */ 1130#define LCNT_SRCCONN 3 /* max-src-conn */ 1131#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1132#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1133#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1134#define LCNT_MAX 7 /* total+1 */ 1135 1136#define LCNT_NAMES { \ 1137 "max states per rule", \ 1138 "max-src-states", \ 1139 "max-src-nodes", \ 1140 "max-src-conn", \ 1141 "max-src-conn-rate", \ 1142 "overload table insertion", \ 1143 "overload flush states", \ 1144 NULL \ 1145} 1146 1147/* UDP state enumeration */ 1148#define PFUDPS_NO_TRAFFIC 0 1149#define PFUDPS_SINGLE 1 1150#define PFUDPS_MULTIPLE 2 1151 1152#define PFUDPS_NSTATES 3 /* number of state levels */ 1153 1154#define PFUDPS_NAMES { \ 1155 "NO_TRAFFIC", \ 1156 "SINGLE", \ 1157 "MULTIPLE", \ 1158 NULL \ 1159} 1160 1161/* Other protocol state enumeration */ 1162#define PFOTHERS_NO_TRAFFIC 0 1163#define PFOTHERS_SINGLE 1 1164#define PFOTHERS_MULTIPLE 2 1165 1166#define PFOTHERS_NSTATES 3 /* number of state levels */ 1167 1168#define PFOTHERS_NAMES { \ 1169 "NO_TRAFFIC", \ 1170 "SINGLE", \ 1171 "MULTIPLE", \ 1172 NULL \ 1173} 1174 1175#define FCNT_STATE_SEARCH 0 1176#define FCNT_STATE_INSERT 1 1177#define FCNT_STATE_REMOVALS 2 1178#define FCNT_MAX 3 1179 1180#define SCNT_SRC_NODE_SEARCH 0 1181#define SCNT_SRC_NODE_INSERT 1 1182#define SCNT_SRC_NODE_REMOVALS 2 1183#define SCNT_MAX 3 1184 1185#define ACTION_SET(a, x) \ 1186 do { \ 1187 if ((a) != NULL) \ 1188 *(a) = (x); \ 1189 } while (0) 1190 1191#define REASON_SET(a, x) \ 1192 do { \ 1193 if ((a) != NULL) \ 1194 *(a) = (x); \ 1195 if (x < PFRES_MAX) \ 1196 V_pf_status.counters[x]++; \ 1197 } while (0) 1198 1199struct pf_status { 1200 u_int64_t counters[PFRES_MAX]; 1201 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1202 u_int64_t fcounters[FCNT_MAX]; 1203 u_int64_t scounters[SCNT_MAX]; 1204 u_int64_t pcounters[2][2][3]; 1205 u_int64_t bcounters[2][2]; 1206 u_int32_t running; 1207 u_int32_t states; 1208 u_int32_t src_nodes; 1209 u_int32_t since; 1210 u_int32_t debug; 1211 u_int32_t hostid; 1212 char ifname[IFNAMSIZ]; 1213 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1214}; 1215 1216struct pf_divert { 1217 union { 1218 struct in_addr ipv4; 1219 struct in6_addr ipv6; 1220 } addr; 1221 u_int16_t port; 1222}; 1223 1224#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1225#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1226 1227/* 1228 * ioctl parameter structures 1229 */ 1230 1231struct pfioc_pooladdr { 1232 u_int32_t action; 1233 u_int32_t ticket; 1234 u_int32_t nr; 1235 u_int32_t r_num; 1236 u_int8_t r_action; 1237 u_int8_t r_last; 1238 u_int8_t af; 1239 char anchor[MAXPATHLEN]; 1240 struct pf_pooladdr addr; 1241}; 1242 1243struct pfioc_rule { 1244 u_int32_t action; 1245 u_int32_t ticket; 1246 u_int32_t pool_ticket; 1247 u_int32_t nr; 1248 char anchor[MAXPATHLEN]; 1249 char anchor_call[MAXPATHLEN]; 1250 struct pf_rule rule; 1251}; 1252 1253struct pfioc_natlook { 1254 struct pf_addr saddr; 1255 struct pf_addr daddr; 1256 struct pf_addr rsaddr; 1257 struct pf_addr rdaddr; 1258 u_int16_t sport; 1259 u_int16_t dport; 1260 u_int16_t rsport; 1261 u_int16_t rdport; 1262 sa_family_t af; 1263 u_int8_t proto; 1264 u_int8_t direction; 1265}; 1266 1267struct pfioc_state { 1268 struct pfsync_state state; 1269}; 1270 1271struct pfioc_src_node_kill { 1272 sa_family_t psnk_af; 1273 struct pf_rule_addr psnk_src; 1274 struct pf_rule_addr psnk_dst; 1275 u_int psnk_killed; 1276}; 1277 1278struct pfioc_state_kill { 1279 struct pf_state_cmp psk_pfcmp; 1280 sa_family_t psk_af; 1281 int psk_proto; 1282 struct pf_rule_addr psk_src; 1283 struct pf_rule_addr psk_dst; 1284 char psk_ifname[IFNAMSIZ]; 1285 char psk_label[PF_RULE_LABEL_SIZE]; 1286 u_int psk_killed; 1287}; 1288 1289struct pfioc_states { 1290 int ps_len; 1291 union { 1292 caddr_t psu_buf; 1293 struct pfsync_state *psu_states; 1294 } ps_u; 1295#define ps_buf ps_u.psu_buf 1296#define ps_states ps_u.psu_states 1297}; 1298 1299struct pfioc_src_nodes { 1300 int psn_len; 1301 union { 1302 caddr_t psu_buf; 1303 struct pf_src_node *psu_src_nodes; 1304 } psn_u; 1305#define psn_buf psn_u.psu_buf 1306#define psn_src_nodes psn_u.psu_src_nodes 1307}; 1308 1309struct pfioc_if { 1310 char ifname[IFNAMSIZ]; 1311}; 1312 1313struct pfioc_tm { 1314 int timeout; 1315 int seconds; 1316}; 1317 1318struct pfioc_limit { 1319 int index; 1320 unsigned limit; 1321}; 1322 1323struct pfioc_altq { 1324 u_int32_t action; 1325 u_int32_t ticket; 1326 u_int32_t nr; 1327 struct pf_altq altq; 1328}; 1329 1330struct pfioc_qstats { 1331 u_int32_t ticket; 1332 u_int32_t nr; 1333 void *buf; 1334 int nbytes; 1335 u_int8_t scheduler; 1336}; 1337 1338struct pfioc_ruleset { 1339 u_int32_t nr; 1340 char path[MAXPATHLEN]; 1341 char name[PF_ANCHOR_NAME_SIZE]; 1342}; 1343 1344#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1345#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1346struct pfioc_trans { 1347 int size; /* number of elements */ 1348 int esize; /* size of each element in bytes */ 1349 struct pfioc_trans_e { 1350 int rs_num; 1351 char anchor[MAXPATHLEN]; 1352 u_int32_t ticket; 1353 } *array; 1354}; 1355 1356#define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1357#define PFR_FLAG_DUMMY 0x00000002 1358#define PFR_FLAG_FEEDBACK 0x00000004 1359#define PFR_FLAG_CLSTATS 0x00000008 1360#define PFR_FLAG_ADDRSTOO 0x00000010 1361#define PFR_FLAG_REPLACE 0x00000020 1362#define PFR_FLAG_ALLRSETS 0x00000040 1363#define PFR_FLAG_ALLMASK 0x0000007F 1364#ifdef _KERNEL 1365#define PFR_FLAG_USERIOCTL 0x10000000 1366#endif 1367 1368struct pfioc_table { 1369 struct pfr_table pfrio_table; 1370 void *pfrio_buffer; 1371 int pfrio_esize; 1372 int pfrio_size; 1373 int pfrio_size2; 1374 int pfrio_nadd; 1375 int pfrio_ndel; 1376 int pfrio_nchange; 1377 int pfrio_flags; 1378 u_int32_t pfrio_ticket; 1379}; 1380#define pfrio_exists pfrio_nadd 1381#define pfrio_nzero pfrio_nadd 1382#define pfrio_nmatch pfrio_nadd 1383#define pfrio_naddr pfrio_size2 1384#define pfrio_setflag pfrio_size2 1385#define pfrio_clrflag pfrio_nadd 1386 1387struct pfioc_iface { 1388 char pfiio_name[IFNAMSIZ]; 1389 void *pfiio_buffer; 1390 int pfiio_esize; 1391 int pfiio_size; 1392 int pfiio_nzero; 1393 int pfiio_flags; 1394}; 1395 1396 1397/* 1398 * ioctl operations 1399 */ 1400 1401#define DIOCSTART _IO ('D', 1) 1402#define DIOCSTOP _IO ('D', 2) 1403#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1404#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1405#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1406/* XXX cut 8 - 17 */ 1407#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1408#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1409#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1410#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1411#define DIOCCLRSTATUS _IO ('D', 22) 1412#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1413#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1414#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1415#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1416/* XXX cut 26 - 28 */ 1417#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1418#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1419#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1420#define DIOCCLRRULECTRS _IO ('D', 38) 1421#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1422#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1423#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1424#define DIOCSTARTALTQ _IO ('D', 42) 1425#define DIOCSTOPALTQ _IO ('D', 43) 1426#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1427#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1428#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1429#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1430#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1431#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1432#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1433#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1434#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1435#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1436/* XXX cut 55 - 57 */ 1437#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1438#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1439#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1440#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1441#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1442#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1443#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1444#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1445#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1446#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1447#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1448#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1449#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1450#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1451#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1452#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1453#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1454#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1455#define DIOCOSFPFLUSH _IO('D', 78) 1456#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1457#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1458#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1459#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1460#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1461#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1462#define DIOCCLRSRCNODES _IO('D', 85) 1463#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1464#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1465#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1466#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1467#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1468struct pf_ifspeed { 1469 char ifname[IFNAMSIZ]; 1470 u_int32_t baudrate; 1471}; 1472#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 1473 1474#ifdef _KERNEL 1475LIST_HEAD(pf_src_node_list, pf_src_node); 1476struct pf_srchash { 1477 struct pf_src_node_list nodes; 1478 struct mtx lock; 1479}; 1480 1481struct pf_keyhash { 1482 LIST_HEAD(, pf_state_key) keys; 1483 struct mtx lock; 1484}; 1485 1486struct pf_idhash { 1487 LIST_HEAD(, pf_state) states; 1488 struct mtx lock; 1489}; 1490 1491#define PF_HASHSIZ (32768) 1492VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1493VNET_DECLARE(struct pf_idhash *, pf_idhash); 1494VNET_DECLARE(u_long, pf_hashmask); 1495#define V_pf_keyhash VNET(pf_keyhash) 1496#define V_pf_idhash VNET(pf_idhash) 1497#define V_pf_hashmask VNET(pf_hashmask) 1498VNET_DECLARE(struct pf_srchash *, pf_srchash); 1499VNET_DECLARE(u_long, pf_srchashmask); 1500#define V_pf_srchash VNET(pf_srchash) 1501#define V_pf_srchashmask VNET(pf_srchashmask) 1502 1503#define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1)) 1504 1505VNET_DECLARE(void *, pf_swi_cookie); 1506#define V_pf_swi_cookie VNET(pf_swi_cookie) 1507 1508VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1509#define V_pf_stateid VNET(pf_stateid) 1510 1511TAILQ_HEAD(pf_altqqueue, pf_altq); 1512VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]); 1513#define V_pf_altqs VNET(pf_altqs) 1514VNET_DECLARE(struct pf_palist, pf_pabuf); 1515#define V_pf_pabuf VNET(pf_pabuf) 1516 1517VNET_DECLARE(u_int32_t, ticket_altqs_active); 1518#define V_ticket_altqs_active VNET(ticket_altqs_active) 1519VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1520#define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1521VNET_DECLARE(int, altqs_inactive_open); 1522#define V_altqs_inactive_open VNET(altqs_inactive_open) 1523VNET_DECLARE(u_int32_t, ticket_pabuf); 1524#define V_ticket_pabuf VNET(ticket_pabuf) 1525VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1526#define V_pf_altqs_active VNET(pf_altqs_active) 1527VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1528#define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1529 1530VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules); 1531#define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1532 1533void pf_initialize(void); 1534void pf_cleanup(void); 1535 1536struct pf_mtag *pf_get_mtag(struct mbuf *); 1537 1538extern void pf_calc_skip_steps(struct pf_rulequeue *); 1539#ifdef ALTQ 1540extern void pf_altq_ifnet_event(struct ifnet *, int); 1541#endif 1542VNET_DECLARE(uma_zone_t, pf_state_z); 1543#define V_pf_state_z VNET(pf_state_z) 1544VNET_DECLARE(uma_zone_t, pf_state_key_z); 1545#define V_pf_state_key_z VNET(pf_state_key_z) 1546VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1547#define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1548 1549extern void pf_purge_thread(void *); 1550extern void pf_intr(void *); 1551extern void pf_purge_expired_src_nodes(void); 1552 1553extern int pf_unlink_state(struct pf_state *, u_int); 1554#define PF_ENTER_LOCKED 0x00000001 1555#define PF_RETURN_LOCKED 0x00000002 1556extern int pf_state_insert(struct pfi_kif *, 1557 struct pf_state_key *, 1558 struct pf_state_key *, 1559 struct pf_state *); 1560extern void pf_free_state(struct pf_state *); 1561 1562static __inline void 1563pf_ref_state(struct pf_state *s) 1564{ 1565 1566 refcount_acquire(&s->refs); 1567} 1568 1569static __inline int 1570pf_release_state(struct pf_state *s) 1571{ 1572 1573 if (refcount_release(&s->refs)) { 1574 pf_free_state(s); 1575 return (1); 1576 } else 1577 return (0); 1578} 1579 1580extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t); 1581extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1582 u_int, int *); 1583extern struct pf_src_node *pf_find_src_node(struct pf_addr *, 1584 struct pf_rule *, sa_family_t, int); 1585extern void pf_unlink_src_node(struct pf_src_node *); 1586extern void pf_unlink_src_node_locked(struct pf_src_node *); 1587extern u_int pf_free_src_nodes(struct pf_src_node_list *); 1588extern void pf_print_state(struct pf_state *); 1589extern void pf_print_flags(u_int8_t); 1590extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1591 u_int8_t); 1592 1593VNET_DECLARE(struct ifnet *, sync_ifp); 1594#define V_sync_ifp VNET(sync_ifp); 1595VNET_DECLARE(struct pf_rule, pf_default_rule); 1596#define V_pf_default_rule VNET(pf_default_rule) 1597extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1598 u_int8_t); 1599void pf_free_rule(struct pf_rule *); 1600 1601#ifdef INET 1602int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *); 1603#endif /* INET */ 1604 1605#ifdef INET6 1606int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *); 1607void pf_poolmask(struct pf_addr *, struct pf_addr*, 1608 struct pf_addr *, struct pf_addr *, u_int8_t); 1609void pf_addr_inc(struct pf_addr *, sa_family_t); 1610#endif /* INET6 */ 1611 1612u_int32_t pf_new_isn(struct pf_state *); 1613void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1614 sa_family_t); 1615void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1616void pf_send_deferred_syn(struct pf_state *); 1617int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1618 struct pf_addr *, sa_family_t); 1619int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1620 struct pf_addr *, sa_family_t); 1621int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1622 1623void pf_normalize_init(void); 1624void pf_normalize_cleanup(void); 1625int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1626 struct pf_pdesc *); 1627int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1628 struct pf_pdesc *); 1629int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1630 struct pf_pdesc *); 1631void pf_normalize_tcp_cleanup(struct pf_state *); 1632int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1633 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1634int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1635 u_short *, struct tcphdr *, struct pf_state *, 1636 struct pf_state_peer *, struct pf_state_peer *, int *); 1637u_int32_t 1638 pf_state_expires(const struct pf_state *); 1639void pf_purge_expired_fragments(void); 1640int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *, 1641 int); 1642int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 1643struct pf_state_key *pf_alloc_state_key(int); 1644void pfr_initialize(void); 1645void pfr_cleanup(void); 1646int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1647void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1648 u_int64_t, int, int, int); 1649int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 1650void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1651struct pfr_ktable * 1652 pfr_attach_table(struct pf_ruleset *, char *); 1653void pfr_detach_table(struct pfr_ktable *); 1654int pfr_clr_tables(struct pfr_table *, int *, int); 1655int pfr_add_tables(struct pfr_table *, int, int *, int); 1656int pfr_del_tables(struct pfr_table *, int, int *, int); 1657int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1658int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1659int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1660int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1661int pfr_clr_addrs(struct pfr_table *, int *, int); 1662int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1663int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1664 int); 1665int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1666 int); 1667int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1668 int *, int *, int *, int, u_int32_t); 1669int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1670int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1671int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1672 int); 1673int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1674 int); 1675int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1676int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1677int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1678int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1679 int *, u_int32_t, int); 1680 1681MALLOC_DECLARE(PFI_MTYPE); 1682VNET_DECLARE(struct pfi_kif *, pfi_all); 1683#define V_pfi_all VNET(pfi_all) 1684 1685void pfi_initialize(void); 1686void pfi_cleanup(void); 1687void pfi_kif_ref(struct pfi_kif *); 1688void pfi_kif_unref(struct pfi_kif *); 1689struct pfi_kif *pfi_kif_find(const char *); 1690struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *); 1691int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 1692void pfi_kif_purge(void); 1693int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1694 sa_family_t); 1695int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1696void pfi_dynaddr_remove(struct pfi_dynaddr *); 1697void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1698void pfi_update_status(const char *, struct pf_status *); 1699void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 1700int pfi_set_flags(const char *, int); 1701int pfi_clear_flags(const char *, int); 1702 1703int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int); 1704int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 1705void pf_qid2qname(u_int32_t, char *); 1706 1707VNET_DECLARE(struct pf_status, pf_status); 1708#define V_pf_status VNET(pf_status) 1709 1710struct pf_limit { 1711 uma_zone_t zone; 1712 u_int limit; 1713}; 1714VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 1715#define V_pf_limits VNET(pf_limits) 1716 1717#endif /* _KERNEL */ 1718 1719#ifdef _KERNEL 1720VNET_DECLARE(struct pf_anchor_global, pf_anchors); 1721#define V_pf_anchors VNET(pf_anchors) 1722VNET_DECLARE(struct pf_anchor, pf_main_anchor); 1723#define V_pf_main_anchor VNET(pf_main_anchor) 1724#define pf_main_ruleset V_pf_main_anchor.ruleset 1725#endif 1726 1727/* these ruleset functions can be linked into userland programs (pfctl) */ 1728int pf_get_ruleset_number(u_int8_t); 1729void pf_init_ruleset(struct pf_ruleset *); 1730int pf_anchor_setup(struct pf_rule *, 1731 const struct pf_ruleset *, const char *); 1732int pf_anchor_copyout(const struct pf_ruleset *, 1733 const struct pf_rule *, struct pfioc_rule *); 1734void pf_anchor_remove(struct pf_rule *); 1735void pf_remove_if_empty_ruleset(struct pf_ruleset *); 1736struct pf_ruleset *pf_find_ruleset(const char *); 1737struct pf_ruleset *pf_find_or_create_ruleset(const char *); 1738void pf_rs_initialize(void); 1739 1740/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1741int pf_osfp_add(struct pf_osfp_ioctl *); 1742#ifdef _KERNEL 1743struct pf_osfp_enlist * 1744 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1745 const struct tcphdr *); 1746#endif /* _KERNEL */ 1747void pf_osfp_flush(void); 1748int pf_osfp_get(struct pf_osfp_ioctl *); 1749int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1750 1751#ifdef _KERNEL 1752void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 1753 1754void pf_step_into_anchor(struct pf_anchor_stackframe *, int *, 1755 struct pf_ruleset **, int, struct pf_rule **, 1756 struct pf_rule **, int *); 1757int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *, 1758 struct pf_ruleset **, int, struct pf_rule **, 1759 struct pf_rule **, int *); 1760 1761int pf_map_addr(u_int8_t, struct pf_rule *, 1762 struct pf_addr *, struct pf_addr *, 1763 struct pf_addr *, struct pf_src_node **); 1764struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 1765 int, int, struct pfi_kif *, struct pf_src_node **, 1766 struct pf_state_key **, struct pf_state_key **, 1767 struct pf_addr *, struct pf_addr *, 1768 uint16_t, uint16_t, struct pf_anchor_stackframe *); 1769 1770struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 1771 struct pf_addr *, u_int16_t, u_int16_t); 1772struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 1773#endif /* _KERNEL */ 1774 1775#endif /* _NET_PFVAR_H_ */ 1776