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: releng/11.0/sys/net/pfvar.h 302156 2016-06-23 21:34:38Z bz $ 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/malloc.h> 40#include <sys/refcount.h> 41#include <sys/tree.h> 42#include <vm/uma.h> 43 44#include <net/radix.h> 45#include <netinet/in.h> 46 47#include <netpfil/pf/pf.h> 48#include <netpfil/pf/pf_altq.h> 49#include <netpfil/pf/pf_mtag.h> 50 51struct pf_addr { 52 union { 53 struct in_addr v4; 54 struct in6_addr v6; 55 u_int8_t addr8[16]; 56 u_int16_t addr16[8]; 57 u_int32_t addr32[4]; 58 } pfa; /* 128-bit address */ 59#define v4 pfa.v4 60#define v6 pfa.v6 61#define addr8 pfa.addr8 62#define addr16 pfa.addr16 63#define addr32 pfa.addr32 64}; 65 66#define PFI_AFLAG_NETWORK 0x01 67#define PFI_AFLAG_BROADCAST 0x02 68#define PFI_AFLAG_PEER 0x04 69#define PFI_AFLAG_MODEMASK 0x07 70#define PFI_AFLAG_NOALIAS 0x08 71 72struct pf_addr_wrap { 73 union { 74 struct { 75 struct pf_addr addr; 76 struct pf_addr mask; 77 } a; 78 char ifname[IFNAMSIZ]; 79 char tblname[PF_TABLE_NAME_SIZE]; 80 } v; 81 union { 82 struct pfi_dynaddr *dyn; 83 struct pfr_ktable *tbl; 84 int dyncnt; 85 int tblcnt; 86 } p; 87 u_int8_t type; /* PF_ADDR_* */ 88 u_int8_t iflags; /* PFI_AFLAG_* */ 89}; 90 91#ifdef _KERNEL 92 93struct pfi_dynaddr { 94 TAILQ_ENTRY(pfi_dynaddr) entry; 95 struct pf_addr pfid_addr4; 96 struct pf_addr pfid_mask4; 97 struct pf_addr pfid_addr6; 98 struct pf_addr pfid_mask6; 99 struct pfr_ktable *pfid_kt; 100 struct pfi_kif *pfid_kif; 101 int pfid_net; /* mask or 128 */ 102 int pfid_acnt4; /* address count IPv4 */ 103 int pfid_acnt6; /* address count IPv6 */ 104 sa_family_t pfid_af; /* rule af */ 105 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 106}; 107 108/* 109 * Address manipulation macros 110 */ 111#define HTONL(x) (x) = htonl((__uint32_t)(x)) 112#define HTONS(x) (x) = htons((__uint16_t)(x)) 113#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 114#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 115 116#define PF_NAME "pf" 117 118#define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED) 119#define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock) 120#define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock) 121 122#define PF_STATE_LOCK(s) \ 123 do { \ 124 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 125 PF_HASHROW_LOCK(_ih); \ 126 } while (0) 127 128#define PF_STATE_UNLOCK(s) \ 129 do { \ 130 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \ 131 PF_HASHROW_UNLOCK(_ih); \ 132 } while (0) 133 134#ifdef INVARIANTS 135#define PF_STATE_LOCK_ASSERT(s) \ 136 do { \ 137 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \ 138 PF_HASHROW_ASSERT(_ih); \ 139 } while (0) 140#else /* !INVARIANTS */ 141#define PF_STATE_LOCK_ASSERT(s) do {} while (0) 142#endif /* INVARIANTS */ 143 144extern struct mtx pf_unlnkdrules_mtx; 145#define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx) 146#define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx) 147 148extern struct rwlock pf_rules_lock; 149#define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock) 150#define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock) 151#define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock) 152#define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock) 153#define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED) 154#define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED) 155#define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED) 156 157#define PF_MODVER 1 158#define PFLOG_MODVER 1 159#define PFSYNC_MODVER 1 160 161#define PFLOG_MINVER 1 162#define PFLOG_PREFVER PFLOG_MODVER 163#define PFLOG_MAXVER 1 164#define PFSYNC_MINVER 1 165#define PFSYNC_PREFVER PFSYNC_MODVER 166#define PFSYNC_MAXVER 1 167 168#ifdef INET 169#ifndef INET6 170#define PF_INET_ONLY 171#endif /* ! INET6 */ 172#endif /* INET */ 173 174#ifdef INET6 175#ifndef INET 176#define PF_INET6_ONLY 177#endif /* ! INET */ 178#endif /* INET6 */ 179 180#ifdef INET 181#ifdef INET6 182#define PF_INET_INET6 183#endif /* INET6 */ 184#endif /* INET */ 185 186#else 187 188#define PF_INET_INET6 189 190#endif /* _KERNEL */ 191 192/* Both IPv4 and IPv6 */ 193#ifdef PF_INET_INET6 194 195#define PF_AEQ(a, b, c) \ 196 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 197 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \ 198 (a)->addr32[2] == (b)->addr32[2] && \ 199 (a)->addr32[1] == (b)->addr32[1] && \ 200 (a)->addr32[0] == (b)->addr32[0])) \ 201 202#define PF_ANEQ(a, b, c) \ 203 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 204 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ 205 (a)->addr32[1] != (b)->addr32[1] || \ 206 (a)->addr32[2] != (b)->addr32[2] || \ 207 (a)->addr32[3] != (b)->addr32[3]))) \ 208 209#define PF_AZERO(a, c) \ 210 ((c == AF_INET && !(a)->addr32[0]) || \ 211 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \ 212 !(a)->addr32[2] && !(a)->addr32[3] )) \ 213 214#define PF_MATCHA(n, a, m, b, f) \ 215 pf_match_addr(n, a, m, b, f) 216 217#define PF_ACPY(a, b, f) \ 218 pf_addrcpy(a, b, f) 219 220#define PF_AINC(a, f) \ 221 pf_addr_inc(a, f) 222 223#define PF_POOLMASK(a, b, c, d, f) \ 224 pf_poolmask(a, b, c, d, f) 225 226#else 227 228/* Just IPv6 */ 229 230#ifdef PF_INET6_ONLY 231 232#define PF_AEQ(a, b, c) \ 233 ((a)->addr32[3] == (b)->addr32[3] && \ 234 (a)->addr32[2] == (b)->addr32[2] && \ 235 (a)->addr32[1] == (b)->addr32[1] && \ 236 (a)->addr32[0] == (b)->addr32[0]) \ 237 238#define PF_ANEQ(a, b, c) \ 239 ((a)->addr32[3] != (b)->addr32[3] || \ 240 (a)->addr32[2] != (b)->addr32[2] || \ 241 (a)->addr32[1] != (b)->addr32[1] || \ 242 (a)->addr32[0] != (b)->addr32[0]) \ 243 244#define PF_AZERO(a, c) \ 245 (!(a)->addr32[0] && \ 246 !(a)->addr32[1] && \ 247 !(a)->addr32[2] && \ 248 !(a)->addr32[3] ) \ 249 250#define PF_MATCHA(n, a, m, b, f) \ 251 pf_match_addr(n, a, m, b, f) 252 253#define PF_ACPY(a, b, f) \ 254 pf_addrcpy(a, b, f) 255 256#define PF_AINC(a, f) \ 257 pf_addr_inc(a, f) 258 259#define PF_POOLMASK(a, b, c, d, f) \ 260 pf_poolmask(a, b, c, d, f) 261 262#else 263 264/* Just IPv4 */ 265#ifdef PF_INET_ONLY 266 267#define PF_AEQ(a, b, c) \ 268 ((a)->addr32[0] == (b)->addr32[0]) 269 270#define PF_ANEQ(a, b, c) \ 271 ((a)->addr32[0] != (b)->addr32[0]) 272 273#define PF_AZERO(a, c) \ 274 (!(a)->addr32[0]) 275 276#define PF_MATCHA(n, a, m, b, f) \ 277 pf_match_addr(n, a, m, b, f) 278 279#define PF_ACPY(a, b, f) \ 280 (a)->v4.s_addr = (b)->v4.s_addr 281 282#define PF_AINC(a, f) \ 283 do { \ 284 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 285 } while (0) 286 287#define PF_POOLMASK(a, b, c, d, f) \ 288 do { \ 289 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 290 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 291 } while (0) 292 293#endif /* PF_INET_ONLY */ 294#endif /* PF_INET6_ONLY */ 295#endif /* PF_INET_INET6 */ 296 297/* 298 * XXX callers not FIB-aware in our version of pf yet. 299 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio. 300 */ 301#define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \ 302 ( \ 303 (((aw)->type == PF_ADDR_NOROUTE && \ 304 pf_routable((x), (af), NULL, (rtid))) || \ 305 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 306 pf_routable((x), (af), (ifp), (rtid))) || \ 307 ((aw)->type == PF_ADDR_TABLE && \ 308 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 309 ((aw)->type == PF_ADDR_DYNIFTL && \ 310 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 311 ((aw)->type == PF_ADDR_RANGE && \ 312 !pf_match_addr_range(&(aw)->v.a.addr, \ 313 &(aw)->v.a.mask, (x), (af))) || \ 314 ((aw)->type == PF_ADDR_ADDRMASK && \ 315 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 316 !PF_MATCHA(0, &(aw)->v.a.addr, \ 317 &(aw)->v.a.mask, (x), (af))))) != \ 318 (neg) \ 319 ) 320 321 322struct pf_rule_uid { 323 uid_t uid[2]; 324 u_int8_t op; 325}; 326 327struct pf_rule_gid { 328 uid_t gid[2]; 329 u_int8_t op; 330}; 331 332struct pf_rule_addr { 333 struct pf_addr_wrap addr; 334 u_int16_t port[2]; 335 u_int8_t neg; 336 u_int8_t port_op; 337}; 338 339struct pf_pooladdr { 340 struct pf_addr_wrap addr; 341 TAILQ_ENTRY(pf_pooladdr) entries; 342 char ifname[IFNAMSIZ]; 343 struct pfi_kif *kif; 344}; 345 346TAILQ_HEAD(pf_palist, pf_pooladdr); 347 348struct pf_poolhashkey { 349 union { 350 u_int8_t key8[16]; 351 u_int16_t key16[8]; 352 u_int32_t key32[4]; 353 } pfk; /* 128-bit hash key */ 354#define key8 pfk.key8 355#define key16 pfk.key16 356#define key32 pfk.key32 357}; 358 359struct pf_pool { 360 struct pf_palist list; 361 struct pf_pooladdr *cur; 362 struct pf_poolhashkey key; 363 struct pf_addr counter; 364 int tblidx; 365 u_int16_t proxy_port[2]; 366 u_int8_t opts; 367}; 368 369 370/* A packed Operating System description for fingerprinting */ 371typedef u_int32_t pf_osfp_t; 372#define PF_OSFP_ANY ((pf_osfp_t)0) 373#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 374#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 375 376struct pf_osfp_entry { 377 SLIST_ENTRY(pf_osfp_entry) fp_entry; 378 pf_osfp_t fp_os; 379 int fp_enflags; 380#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 381#define PF_OSFP_GENERIC 0x002 /* generic signature */ 382#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 383#define PF_OSFP_LEN 32 384 char fp_class_nm[PF_OSFP_LEN]; 385 char fp_version_nm[PF_OSFP_LEN]; 386 char fp_subtype_nm[PF_OSFP_LEN]; 387}; 388#define PF_OSFP_ENTRY_EQ(a, b) \ 389 ((a)->fp_os == (b)->fp_os && \ 390 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 391 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 392 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 393 394/* handle pf_osfp_t packing */ 395#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 396#define _FP_UNUSED_BITS 1 397#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 398#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 399#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 400#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 401 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 402 ((1 << _FP_CLASS_BITS) - 1); \ 403 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 404 ((1 << _FP_VERSION_BITS) - 1);\ 405 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 406} while(0) 407#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 408 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 409 + _FP_SUBTYPE_BITS); \ 410 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 411 _FP_SUBTYPE_BITS; \ 412 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 413} while(0) 414 415/* the fingerprint of an OSes TCP SYN packet */ 416typedef u_int64_t pf_tcpopts_t; 417struct pf_os_fingerprint { 418 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 419 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 420 u_int16_t fp_wsize; /* TCP window size */ 421 u_int16_t fp_psize; /* ip->ip_len */ 422 u_int16_t fp_mss; /* TCP MSS */ 423 u_int16_t fp_flags; 424#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 425#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 426#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 427#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 428#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 429#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 430#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 431#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 432#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 433#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 434#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 435#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 436#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 437#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 438#define PF_OSFP_INET6 0x4000 /* IPv6 */ 439 u_int8_t fp_optcnt; /* TCP option count */ 440 u_int8_t fp_wscale; /* TCP window scaling */ 441 u_int8_t fp_ttl; /* IPv4 TTL */ 442#define PF_OSFP_MAXTTL_OFFSET 40 443/* TCP options packing */ 444#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 445#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 446#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 447#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 448#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 449#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 450#define PF_OSFP_MAX_OPTS \ 451 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 452 / PF_OSFP_TCPOPT_BITS 453 454 SLIST_ENTRY(pf_os_fingerprint) fp_next; 455}; 456 457struct pf_osfp_ioctl { 458 struct pf_osfp_entry fp_os; 459 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 460 u_int16_t fp_wsize; /* TCP window size */ 461 u_int16_t fp_psize; /* ip->ip_len */ 462 u_int16_t fp_mss; /* TCP MSS */ 463 u_int16_t fp_flags; 464 u_int8_t fp_optcnt; /* TCP option count */ 465 u_int8_t fp_wscale; /* TCP window scaling */ 466 u_int8_t fp_ttl; /* IPv4 TTL */ 467 468 int fp_getnum; /* DIOCOSFPGET number */ 469}; 470 471 472union pf_rule_ptr { 473 struct pf_rule *ptr; 474 u_int32_t nr; 475}; 476 477#define PF_ANCHOR_NAME_SIZE 64 478 479struct pf_rule { 480 struct pf_rule_addr src; 481 struct pf_rule_addr dst; 482#define PF_SKIP_IFP 0 483#define PF_SKIP_DIR 1 484#define PF_SKIP_AF 2 485#define PF_SKIP_PROTO 3 486#define PF_SKIP_SRC_ADDR 4 487#define PF_SKIP_SRC_PORT 5 488#define PF_SKIP_DST_ADDR 6 489#define PF_SKIP_DST_PORT 7 490#define PF_SKIP_COUNT 8 491 union pf_rule_ptr skip[PF_SKIP_COUNT]; 492#define PF_RULE_LABEL_SIZE 64 493 char label[PF_RULE_LABEL_SIZE]; 494 char ifname[IFNAMSIZ]; 495 char qname[PF_QNAME_SIZE]; 496 char pqname[PF_QNAME_SIZE]; 497#define PF_TAG_NAME_SIZE 64 498 char tagname[PF_TAG_NAME_SIZE]; 499 char match_tagname[PF_TAG_NAME_SIZE]; 500 501 char overload_tblname[PF_TABLE_NAME_SIZE]; 502 503 TAILQ_ENTRY(pf_rule) entries; 504 struct pf_pool rpool; 505 506 u_int64_t evaluations; 507 u_int64_t packets[2]; 508 u_int64_t bytes[2]; 509 510 struct pfi_kif *kif; 511 struct pf_anchor *anchor; 512 struct pfr_ktable *overload_tbl; 513 514 pf_osfp_t os_fingerprint; 515 516 int rtableid; 517 u_int32_t timeout[PFTM_MAX]; 518 u_int32_t max_states; 519 u_int32_t max_src_nodes; 520 u_int32_t max_src_states; 521 u_int32_t max_src_conn; 522 struct { 523 u_int32_t limit; 524 u_int32_t seconds; 525 } max_src_conn_rate; 526 u_int32_t qid; 527 u_int32_t pqid; 528 u_int32_t rt_listid; 529 u_int32_t nr; 530 u_int32_t prob; 531 uid_t cuid; 532 pid_t cpid; 533 534 counter_u64_t states_cur; 535 counter_u64_t states_tot; 536 counter_u64_t src_nodes; 537 538 u_int16_t return_icmp; 539 u_int16_t return_icmp6; 540 u_int16_t max_mss; 541 u_int16_t tag; 542 u_int16_t match_tag; 543 u_int16_t scrub_flags; 544 545 struct pf_rule_uid uid; 546 struct pf_rule_gid gid; 547 548 u_int32_t rule_flag; 549 u_int8_t action; 550 u_int8_t direction; 551 u_int8_t log; 552 u_int8_t logif; 553 u_int8_t quick; 554 u_int8_t ifnot; 555 u_int8_t match_tag_not; 556 u_int8_t natpass; 557 558#define PF_STATE_NORMAL 0x1 559#define PF_STATE_MODULATE 0x2 560#define PF_STATE_SYNPROXY 0x3 561 u_int8_t keep_state; 562 sa_family_t af; 563 u_int8_t proto; 564 u_int8_t type; 565 u_int8_t code; 566 u_int8_t flags; 567 u_int8_t flagset; 568 u_int8_t min_ttl; 569 u_int8_t allow_opts; 570 u_int8_t rt; 571 u_int8_t return_ttl; 572 u_int8_t tos; 573 u_int8_t set_tos; 574 u_int8_t anchor_relative; 575 u_int8_t anchor_wildcard; 576 577#define PF_FLUSH 0x01 578#define PF_FLUSH_GLOBAL 0x02 579 u_int8_t flush; 580#define PF_PRIO_ZERO 0xff /* match "prio 0" packets */ 581#define PF_PRIO_MAX 7 582 u_int8_t prio; 583 u_int8_t set_prio[2]; 584 585 struct { 586 struct pf_addr addr; 587 u_int16_t port; 588 } divert; 589 590 uint64_t u_states_cur; 591 uint64_t u_states_tot; 592 uint64_t u_src_nodes; 593}; 594 595/* rule flags */ 596#define PFRULE_DROP 0x0000 597#define PFRULE_RETURNRST 0x0001 598#define PFRULE_FRAGMENT 0x0002 599#define PFRULE_RETURNICMP 0x0004 600#define PFRULE_RETURN 0x0008 601#define PFRULE_NOSYNC 0x0010 602#define PFRULE_SRCTRACK 0x0020 /* track source states */ 603#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 604#define PFRULE_REFS 0x0080 /* rule has references */ 605 606/* scrub flags */ 607#define PFRULE_NODF 0x0100 608#define PFRULE_RANDOMID 0x0800 609#define PFRULE_REASSEMBLE_TCP 0x1000 610#define PFRULE_SET_TOS 0x2000 611 612/* rule flags again */ 613#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 614#define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */ 615 616#define PFSTATE_HIWAT 10000 /* default state table size */ 617#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 618#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 619 620 621struct pf_threshold { 622 u_int32_t limit; 623#define PF_THRESHOLD_MULT 1000 624#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 625 u_int32_t seconds; 626 u_int32_t count; 627 u_int32_t last; 628}; 629 630struct pf_src_node { 631 LIST_ENTRY(pf_src_node) entry; 632 struct pf_addr addr; 633 struct pf_addr raddr; 634 union pf_rule_ptr rule; 635 struct pfi_kif *kif; 636 u_int64_t bytes[2]; 637 u_int64_t packets[2]; 638 u_int32_t states; 639 u_int32_t conn; 640 struct pf_threshold conn_rate; 641 u_int32_t creation; 642 u_int32_t expire; 643 sa_family_t af; 644 u_int8_t ruletype; 645}; 646 647#define PFSNODE_HIWAT 10000 /* default source node table size */ 648 649struct pf_state_scrub { 650 struct timeval pfss_last; /* time received last packet */ 651 u_int32_t pfss_tsecr; /* last echoed timestamp */ 652 u_int32_t pfss_tsval; /* largest timestamp */ 653 u_int32_t pfss_tsval0; /* original timestamp */ 654 u_int16_t pfss_flags; 655#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 656#define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 657#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 658#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 659#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 660 u_int8_t pfss_ttl; /* stashed TTL */ 661 u_int8_t pad; 662 u_int32_t pfss_ts_mod; /* timestamp modulation */ 663}; 664 665struct pf_state_host { 666 struct pf_addr addr; 667 u_int16_t port; 668 u_int16_t pad; 669}; 670 671struct pf_state_peer { 672 struct pf_state_scrub *scrub; /* state is scrubbed */ 673 u_int32_t seqlo; /* Max sequence number sent */ 674 u_int32_t seqhi; /* Max the other end ACKd + win */ 675 u_int32_t seqdiff; /* Sequence number modulator */ 676 u_int16_t max_win; /* largest window (pre scaling) */ 677 u_int16_t mss; /* Maximum segment size option */ 678 u_int8_t state; /* active state level */ 679 u_int8_t wscale; /* window scaling factor */ 680 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 681 u_int8_t pad[1]; 682}; 683 684/* Keep synced with struct pf_state_key. */ 685struct pf_state_key_cmp { 686 struct pf_addr addr[2]; 687 u_int16_t port[2]; 688 sa_family_t af; 689 u_int8_t proto; 690 u_int8_t pad[2]; 691}; 692 693struct pf_state_key { 694 struct pf_addr addr[2]; 695 u_int16_t port[2]; 696 sa_family_t af; 697 u_int8_t proto; 698 u_int8_t pad[2]; 699 700 LIST_ENTRY(pf_state_key) entry; 701 TAILQ_HEAD(, pf_state) states[2]; 702}; 703 704/* Keep synced with struct pf_state. */ 705struct pf_state_cmp { 706 u_int64_t id; 707 u_int32_t creatorid; 708 u_int8_t direction; 709 u_int8_t pad[3]; 710}; 711 712struct pf_state { 713 u_int64_t id; 714 u_int32_t creatorid; 715 u_int8_t direction; 716 u_int8_t pad[3]; 717 718 u_int refs; 719 TAILQ_ENTRY(pf_state) sync_list; 720 TAILQ_ENTRY(pf_state) key_list[2]; 721 LIST_ENTRY(pf_state) entry; 722 struct pf_state_peer src; 723 struct pf_state_peer dst; 724 union pf_rule_ptr rule; 725 union pf_rule_ptr anchor; 726 union pf_rule_ptr nat_rule; 727 struct pf_addr rt_addr; 728 struct pf_state_key *key[2]; /* addresses stack and wire */ 729 struct pfi_kif *kif; 730 struct pfi_kif *rt_kif; 731 struct pf_src_node *src_node; 732 struct pf_src_node *nat_src_node; 733 u_int64_t packets[2]; 734 u_int64_t bytes[2]; 735 u_int32_t creation; 736 u_int32_t expire; 737 u_int32_t pfsync_time; 738 u_int16_t tag; 739 u_int8_t log; 740 u_int8_t state_flags; 741#define PFSTATE_ALLOWOPTS 0x01 742#define PFSTATE_SLOPPY 0x02 743/* was PFSTATE_PFLOW 0x04 */ 744#define PFSTATE_NOSYNC 0x08 745#define PFSTATE_ACK 0x10 746#define PFSTATE_SETPRIO 0x0200 747#define PFSTATE_SETMASK (PFSTATE_SETPRIO) 748 u_int8_t timeout; 749 u_int8_t sync_state; /* PFSYNC_S_x */ 750 751 /* XXX */ 752 u_int8_t sync_updates; 753 u_int8_t _tail[3]; 754}; 755 756/* 757 * Unified state structures for pulling states out of the kernel 758 * used by pfsync(4) and the pf(4) ioctl. 759 */ 760struct pfsync_state_scrub { 761 u_int16_t pfss_flags; 762 u_int8_t pfss_ttl; /* stashed TTL */ 763#define PFSYNC_SCRUB_FLAG_VALID 0x01 764 u_int8_t scrub_flag; 765 u_int32_t pfss_ts_mod; /* timestamp modulation */ 766} __packed; 767 768struct pfsync_state_peer { 769 struct pfsync_state_scrub scrub; /* state is scrubbed */ 770 u_int32_t seqlo; /* Max sequence number sent */ 771 u_int32_t seqhi; /* Max the other end ACKd + win */ 772 u_int32_t seqdiff; /* Sequence number modulator */ 773 u_int16_t max_win; /* largest window (pre scaling) */ 774 u_int16_t mss; /* Maximum segment size option */ 775 u_int8_t state; /* active state level */ 776 u_int8_t wscale; /* window scaling factor */ 777 u_int8_t pad[6]; 778} __packed; 779 780struct pfsync_state_key { 781 struct pf_addr addr[2]; 782 u_int16_t port[2]; 783}; 784 785struct pfsync_state { 786 u_int64_t id; 787 char ifname[IFNAMSIZ]; 788 struct pfsync_state_key key[2]; 789 struct pfsync_state_peer src; 790 struct pfsync_state_peer dst; 791 struct pf_addr rt_addr; 792 u_int32_t rule; 793 u_int32_t anchor; 794 u_int32_t nat_rule; 795 u_int32_t creation; 796 u_int32_t expire; 797 u_int32_t packets[2][2]; 798 u_int32_t bytes[2][2]; 799 u_int32_t creatorid; 800 sa_family_t af; 801 u_int8_t proto; 802 u_int8_t direction; 803 u_int8_t __spare[2]; 804 u_int8_t log; 805 u_int8_t state_flags; 806 u_int8_t timeout; 807 u_int8_t sync_flags; 808 u_int8_t updates; 809} __packed; 810 811#ifdef _KERNEL 812/* pfsync */ 813typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 814typedef void pfsync_insert_state_t(struct pf_state *); 815typedef void pfsync_update_state_t(struct pf_state *); 816typedef void pfsync_delete_state_t(struct pf_state *); 817typedef void pfsync_clear_states_t(u_int32_t, const char *); 818typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 819 820extern pfsync_state_import_t *pfsync_state_import_ptr; 821extern pfsync_insert_state_t *pfsync_insert_state_ptr; 822extern pfsync_update_state_t *pfsync_update_state_ptr; 823extern pfsync_delete_state_t *pfsync_delete_state_ptr; 824extern pfsync_clear_states_t *pfsync_clear_states_ptr; 825extern pfsync_defer_t *pfsync_defer_ptr; 826 827void pfsync_state_export(struct pfsync_state *, 828 struct pf_state *); 829 830/* pflog */ 831struct pf_ruleset; 832struct pf_pdesc; 833typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t, 834 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 835 struct pf_ruleset *, struct pf_pdesc *, int); 836extern pflog_packet_t *pflog_packet_ptr; 837 838#endif /* _KERNEL */ 839 840#define PFSYNC_FLAG_SRCNODE 0x04 841#define PFSYNC_FLAG_NATSRCNODE 0x08 842 843/* for copies to/from network byte order */ 844/* ioctl interface also uses network byte order */ 845#define pf_state_peer_hton(s,d) do { \ 846 (d)->seqlo = htonl((s)->seqlo); \ 847 (d)->seqhi = htonl((s)->seqhi); \ 848 (d)->seqdiff = htonl((s)->seqdiff); \ 849 (d)->max_win = htons((s)->max_win); \ 850 (d)->mss = htons((s)->mss); \ 851 (d)->state = (s)->state; \ 852 (d)->wscale = (s)->wscale; \ 853 if ((s)->scrub) { \ 854 (d)->scrub.pfss_flags = \ 855 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 856 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 857 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 858 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 859 } \ 860} while (0) 861 862#define pf_state_peer_ntoh(s,d) do { \ 863 (d)->seqlo = ntohl((s)->seqlo); \ 864 (d)->seqhi = ntohl((s)->seqhi); \ 865 (d)->seqdiff = ntohl((s)->seqdiff); \ 866 (d)->max_win = ntohs((s)->max_win); \ 867 (d)->mss = ntohs((s)->mss); \ 868 (d)->state = (s)->state; \ 869 (d)->wscale = (s)->wscale; \ 870 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 871 (d)->scrub != NULL) { \ 872 (d)->scrub->pfss_flags = \ 873 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 874 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 875 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 876 } \ 877} while (0) 878 879#define pf_state_counter_hton(s,d) do { \ 880 d[0] = htonl((s>>32)&0xffffffff); \ 881 d[1] = htonl(s&0xffffffff); \ 882} while (0) 883 884#define pf_state_counter_from_pfsync(s) \ 885 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 886 887#define pf_state_counter_ntoh(s,d) do { \ 888 d = ntohl(s[0]); \ 889 d = d<<32; \ 890 d += ntohl(s[1]); \ 891} while (0) 892 893TAILQ_HEAD(pf_rulequeue, pf_rule); 894 895struct pf_anchor; 896 897struct pf_ruleset { 898 struct { 899 struct pf_rulequeue queues[2]; 900 struct { 901 struct pf_rulequeue *ptr; 902 struct pf_rule **ptr_array; 903 u_int32_t rcount; 904 u_int32_t ticket; 905 int open; 906 } active, inactive; 907 } rules[PF_RULESET_MAX]; 908 struct pf_anchor *anchor; 909 u_int32_t tticket; 910 int tables; 911 int topen; 912}; 913 914RB_HEAD(pf_anchor_global, pf_anchor); 915RB_HEAD(pf_anchor_node, pf_anchor); 916struct pf_anchor { 917 RB_ENTRY(pf_anchor) entry_global; 918 RB_ENTRY(pf_anchor) entry_node; 919 struct pf_anchor *parent; 920 struct pf_anchor_node children; 921 char name[PF_ANCHOR_NAME_SIZE]; 922 char path[MAXPATHLEN]; 923 struct pf_ruleset ruleset; 924 int refcnt; /* anchor rules */ 925 int match; /* XXX: used for pfctl black magic */ 926}; 927RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 928RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 929 930#define PF_RESERVED_ANCHOR "_pf" 931 932#define PFR_TFLAG_PERSIST 0x00000001 933#define PFR_TFLAG_CONST 0x00000002 934#define PFR_TFLAG_ACTIVE 0x00000004 935#define PFR_TFLAG_INACTIVE 0x00000008 936#define PFR_TFLAG_REFERENCED 0x00000010 937#define PFR_TFLAG_REFDANCHOR 0x00000020 938#define PFR_TFLAG_COUNTERS 0x00000040 939/* Adjust masks below when adding flags. */ 940#define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \ 941 PFR_TFLAG_CONST | \ 942 PFR_TFLAG_COUNTERS) 943#define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \ 944 PFR_TFLAG_INACTIVE | \ 945 PFR_TFLAG_REFERENCED | \ 946 PFR_TFLAG_REFDANCHOR) 947#define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \ 948 PFR_TFLAG_CONST | \ 949 PFR_TFLAG_ACTIVE | \ 950 PFR_TFLAG_INACTIVE | \ 951 PFR_TFLAG_REFERENCED | \ 952 PFR_TFLAG_REFDANCHOR | \ 953 PFR_TFLAG_COUNTERS) 954 955struct pf_anchor_stackframe; 956 957struct pfr_table { 958 char pfrt_anchor[MAXPATHLEN]; 959 char pfrt_name[PF_TABLE_NAME_SIZE]; 960 u_int32_t pfrt_flags; 961 u_int8_t pfrt_fback; 962}; 963 964enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 965 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 966 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 967 968struct pfr_addr { 969 union { 970 struct in_addr _pfra_ip4addr; 971 struct in6_addr _pfra_ip6addr; 972 } pfra_u; 973 u_int8_t pfra_af; 974 u_int8_t pfra_net; 975 u_int8_t pfra_not; 976 u_int8_t pfra_fback; 977}; 978#define pfra_ip4addr pfra_u._pfra_ip4addr 979#define pfra_ip6addr pfra_u._pfra_ip6addr 980 981enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 982enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 983#define PFR_OP_XPASS PFR_OP_ADDR_MAX 984 985struct pfr_astats { 986 struct pfr_addr pfras_a; 987 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 988 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 989 long pfras_tzero; 990}; 991 992enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 993 994struct pfr_tstats { 995 struct pfr_table pfrts_t; 996 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 997 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 998 u_int64_t pfrts_match; 999 u_int64_t pfrts_nomatch; 1000 long pfrts_tzero; 1001 int pfrts_cnt; 1002 int pfrts_refcnt[PFR_REFCNT_MAX]; 1003}; 1004#define pfrts_name pfrts_t.pfrt_name 1005#define pfrts_flags pfrts_t.pfrt_flags 1006 1007#ifndef _SOCKADDR_UNION_DEFINED 1008#define _SOCKADDR_UNION_DEFINED 1009union sockaddr_union { 1010 struct sockaddr sa; 1011 struct sockaddr_in sin; 1012 struct sockaddr_in6 sin6; 1013}; 1014#endif /* _SOCKADDR_UNION_DEFINED */ 1015 1016struct pfr_kcounters { 1017 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1018 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1019}; 1020 1021SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1022struct pfr_kentry { 1023 struct radix_node pfrke_node[2]; 1024 union sockaddr_union pfrke_sa; 1025 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1026 struct pfr_kcounters *pfrke_counters; 1027 long pfrke_tzero; 1028 u_int8_t pfrke_af; 1029 u_int8_t pfrke_net; 1030 u_int8_t pfrke_not; 1031 u_int8_t pfrke_mark; 1032}; 1033 1034SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1035RB_HEAD(pfr_ktablehead, pfr_ktable); 1036struct pfr_ktable { 1037 struct pfr_tstats pfrkt_ts; 1038 RB_ENTRY(pfr_ktable) pfrkt_tree; 1039 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1040 struct radix_node_head *pfrkt_ip4; 1041 struct radix_node_head *pfrkt_ip6; 1042 struct pfr_ktable *pfrkt_shadow; 1043 struct pfr_ktable *pfrkt_root; 1044 struct pf_ruleset *pfrkt_rs; 1045 long pfrkt_larg; 1046 int pfrkt_nflags; 1047}; 1048#define pfrkt_t pfrkt_ts.pfrts_t 1049#define pfrkt_name pfrkt_t.pfrt_name 1050#define pfrkt_anchor pfrkt_t.pfrt_anchor 1051#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1052#define pfrkt_flags pfrkt_t.pfrt_flags 1053#define pfrkt_cnt pfrkt_ts.pfrts_cnt 1054#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1055#define pfrkt_packets pfrkt_ts.pfrts_packets 1056#define pfrkt_bytes pfrkt_ts.pfrts_bytes 1057#define pfrkt_match pfrkt_ts.pfrts_match 1058#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1059#define pfrkt_tzero pfrkt_ts.pfrts_tzero 1060 1061/* keep synced with pfi_kif, used in RB_FIND */ 1062struct pfi_kif_cmp { 1063 char pfik_name[IFNAMSIZ]; 1064}; 1065 1066struct pfi_kif { 1067 char pfik_name[IFNAMSIZ]; 1068 union { 1069 RB_ENTRY(pfi_kif) _pfik_tree; 1070 LIST_ENTRY(pfi_kif) _pfik_list; 1071 } _pfik_glue; 1072#define pfik_tree _pfik_glue._pfik_tree 1073#define pfik_list _pfik_glue._pfik_list 1074 u_int64_t pfik_packets[2][2][2]; 1075 u_int64_t pfik_bytes[2][2][2]; 1076 u_int32_t pfik_tzero; 1077 u_int pfik_flags; 1078 struct ifnet *pfik_ifp; 1079 struct ifg_group *pfik_group; 1080 u_int pfik_rulerefs; 1081 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1082}; 1083 1084#define PFI_IFLAG_REFS 0x0001 /* has state references */ 1085#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1086 1087struct pf_pdesc { 1088 struct { 1089 int done; 1090 uid_t uid; 1091 gid_t gid; 1092 } lookup; 1093 u_int64_t tot_len; /* Make Mickey money */ 1094 union { 1095 struct tcphdr *tcp; 1096 struct udphdr *udp; 1097 struct icmp *icmp; 1098#ifdef INET6 1099 struct icmp6_hdr *icmp6; 1100#endif /* INET6 */ 1101 void *any; 1102 } hdr; 1103 1104 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1105 struct pf_addr *src; /* src address */ 1106 struct pf_addr *dst; /* dst address */ 1107 u_int16_t *sport; 1108 u_int16_t *dport; 1109 struct pf_mtag *pf_mtag; 1110 1111 u_int32_t p_len; /* total length of payload */ 1112 1113 u_int16_t *ip_sum; 1114 u_int16_t *proto_sum; 1115 u_int16_t flags; /* Let SCRUB trigger behavior in 1116 * state code. Easier than tags */ 1117#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1118#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1119 sa_family_t af; 1120 u_int8_t proto; 1121 u_int8_t tos; 1122 u_int8_t dir; /* direction */ 1123 u_int8_t sidx; /* key index for source */ 1124 u_int8_t didx; /* key index for destination */ 1125}; 1126 1127/* flags for RDR options */ 1128#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1129#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1130 1131/* UDP state enumeration */ 1132#define PFUDPS_NO_TRAFFIC 0 1133#define PFUDPS_SINGLE 1 1134#define PFUDPS_MULTIPLE 2 1135 1136#define PFUDPS_NSTATES 3 /* number of state levels */ 1137 1138#define PFUDPS_NAMES { \ 1139 "NO_TRAFFIC", \ 1140 "SINGLE", \ 1141 "MULTIPLE", \ 1142 NULL \ 1143} 1144 1145/* Other protocol state enumeration */ 1146#define PFOTHERS_NO_TRAFFIC 0 1147#define PFOTHERS_SINGLE 1 1148#define PFOTHERS_MULTIPLE 2 1149 1150#define PFOTHERS_NSTATES 3 /* number of state levels */ 1151 1152#define PFOTHERS_NAMES { \ 1153 "NO_TRAFFIC", \ 1154 "SINGLE", \ 1155 "MULTIPLE", \ 1156 NULL \ 1157} 1158 1159#define ACTION_SET(a, x) \ 1160 do { \ 1161 if ((a) != NULL) \ 1162 *(a) = (x); \ 1163 } while (0) 1164 1165#define REASON_SET(a, x) \ 1166 do { \ 1167 if ((a) != NULL) \ 1168 *(a) = (x); \ 1169 if (x < PFRES_MAX) \ 1170 counter_u64_add(V_pf_status.counters[x], 1); \ 1171 } while (0) 1172 1173struct pf_kstatus { 1174 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */ 1175 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */ 1176 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */ 1177 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */ 1178 uint32_t states; 1179 uint32_t src_nodes; 1180 uint32_t running; 1181 uint32_t since; 1182 uint32_t debug; 1183 uint32_t hostid; 1184 char ifname[IFNAMSIZ]; 1185 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1186}; 1187 1188struct pf_divert { 1189 union { 1190 struct in_addr ipv4; 1191 struct in6_addr ipv6; 1192 } addr; 1193 u_int16_t port; 1194}; 1195 1196#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1197#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1198 1199/* 1200 * ioctl parameter structures 1201 */ 1202 1203struct pfioc_pooladdr { 1204 u_int32_t action; 1205 u_int32_t ticket; 1206 u_int32_t nr; 1207 u_int32_t r_num; 1208 u_int8_t r_action; 1209 u_int8_t r_last; 1210 u_int8_t af; 1211 char anchor[MAXPATHLEN]; 1212 struct pf_pooladdr addr; 1213}; 1214 1215struct pfioc_rule { 1216 u_int32_t action; 1217 u_int32_t ticket; 1218 u_int32_t pool_ticket; 1219 u_int32_t nr; 1220 char anchor[MAXPATHLEN]; 1221 char anchor_call[MAXPATHLEN]; 1222 struct pf_rule rule; 1223}; 1224 1225struct pfioc_natlook { 1226 struct pf_addr saddr; 1227 struct pf_addr daddr; 1228 struct pf_addr rsaddr; 1229 struct pf_addr rdaddr; 1230 u_int16_t sport; 1231 u_int16_t dport; 1232 u_int16_t rsport; 1233 u_int16_t rdport; 1234 sa_family_t af; 1235 u_int8_t proto; 1236 u_int8_t direction; 1237}; 1238 1239struct pfioc_state { 1240 struct pfsync_state state; 1241}; 1242 1243struct pfioc_src_node_kill { 1244 sa_family_t psnk_af; 1245 struct pf_rule_addr psnk_src; 1246 struct pf_rule_addr psnk_dst; 1247 u_int psnk_killed; 1248}; 1249 1250struct pfioc_state_kill { 1251 struct pf_state_cmp psk_pfcmp; 1252 sa_family_t psk_af; 1253 int psk_proto; 1254 struct pf_rule_addr psk_src; 1255 struct pf_rule_addr psk_dst; 1256 char psk_ifname[IFNAMSIZ]; 1257 char psk_label[PF_RULE_LABEL_SIZE]; 1258 u_int psk_killed; 1259}; 1260 1261struct pfioc_states { 1262 int ps_len; 1263 union { 1264 caddr_t psu_buf; 1265 struct pfsync_state *psu_states; 1266 } ps_u; 1267#define ps_buf ps_u.psu_buf 1268#define ps_states ps_u.psu_states 1269}; 1270 1271struct pfioc_src_nodes { 1272 int psn_len; 1273 union { 1274 caddr_t psu_buf; 1275 struct pf_src_node *psu_src_nodes; 1276 } psn_u; 1277#define psn_buf psn_u.psu_buf 1278#define psn_src_nodes psn_u.psu_src_nodes 1279}; 1280 1281struct pfioc_if { 1282 char ifname[IFNAMSIZ]; 1283}; 1284 1285struct pfioc_tm { 1286 int timeout; 1287 int seconds; 1288}; 1289 1290struct pfioc_limit { 1291 int index; 1292 unsigned limit; 1293}; 1294 1295struct pfioc_altq { 1296 u_int32_t action; 1297 u_int32_t ticket; 1298 u_int32_t nr; 1299 struct pf_altq altq; 1300}; 1301 1302struct pfioc_qstats { 1303 u_int32_t ticket; 1304 u_int32_t nr; 1305 void *buf; 1306 int nbytes; 1307 u_int8_t scheduler; 1308}; 1309 1310struct pfioc_ruleset { 1311 u_int32_t nr; 1312 char path[MAXPATHLEN]; 1313 char name[PF_ANCHOR_NAME_SIZE]; 1314}; 1315 1316#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1317#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1318struct pfioc_trans { 1319 int size; /* number of elements */ 1320 int esize; /* size of each element in bytes */ 1321 struct pfioc_trans_e { 1322 int rs_num; 1323 char anchor[MAXPATHLEN]; 1324 u_int32_t ticket; 1325 } *array; 1326}; 1327 1328#define PFR_FLAG_ATOMIC 0x00000001 /* unused */ 1329#define PFR_FLAG_DUMMY 0x00000002 1330#define PFR_FLAG_FEEDBACK 0x00000004 1331#define PFR_FLAG_CLSTATS 0x00000008 1332#define PFR_FLAG_ADDRSTOO 0x00000010 1333#define PFR_FLAG_REPLACE 0x00000020 1334#define PFR_FLAG_ALLRSETS 0x00000040 1335#define PFR_FLAG_ALLMASK 0x0000007F 1336#ifdef _KERNEL 1337#define PFR_FLAG_USERIOCTL 0x10000000 1338#endif 1339 1340struct pfioc_table { 1341 struct pfr_table pfrio_table; 1342 void *pfrio_buffer; 1343 int pfrio_esize; 1344 int pfrio_size; 1345 int pfrio_size2; 1346 int pfrio_nadd; 1347 int pfrio_ndel; 1348 int pfrio_nchange; 1349 int pfrio_flags; 1350 u_int32_t pfrio_ticket; 1351}; 1352#define pfrio_exists pfrio_nadd 1353#define pfrio_nzero pfrio_nadd 1354#define pfrio_nmatch pfrio_nadd 1355#define pfrio_naddr pfrio_size2 1356#define pfrio_setflag pfrio_size2 1357#define pfrio_clrflag pfrio_nadd 1358 1359struct pfioc_iface { 1360 char pfiio_name[IFNAMSIZ]; 1361 void *pfiio_buffer; 1362 int pfiio_esize; 1363 int pfiio_size; 1364 int pfiio_nzero; 1365 int pfiio_flags; 1366}; 1367 1368 1369/* 1370 * ioctl operations 1371 */ 1372 1373#define DIOCSTART _IO ('D', 1) 1374#define DIOCSTOP _IO ('D', 2) 1375#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1376#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1377#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1378/* XXX cut 8 - 17 */ 1379#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1380#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1381#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1382#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1383#define DIOCCLRSTATUS _IO ('D', 22) 1384#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1385#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1386#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1387#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1388/* XXX cut 26 - 28 */ 1389#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1390#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1391#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1392#define DIOCCLRRULECTRS _IO ('D', 38) 1393#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1394#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1395#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1396#define DIOCSTARTALTQ _IO ('D', 42) 1397#define DIOCSTOPALTQ _IO ('D', 43) 1398#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1399#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1400#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1401#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1402#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1403#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1404#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1405#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1406#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1407#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1408/* XXX cut 55 - 57 */ 1409#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1410#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1411#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1412#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1413#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1414#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1415#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1416#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1417#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1418#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1419#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1420#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1421#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1422#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1423#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1424#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1425#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1426#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1427#define DIOCOSFPFLUSH _IO('D', 78) 1428#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1429#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1430#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1431#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1432#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1433#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1434#define DIOCCLRSRCNODES _IO('D', 85) 1435#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1436#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1437#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1438#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1439#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1440struct pf_ifspeed { 1441 char ifname[IFNAMSIZ]; 1442 u_int32_t baudrate; 1443}; 1444#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 1445 1446#ifdef _KERNEL 1447LIST_HEAD(pf_src_node_list, pf_src_node); 1448struct pf_srchash { 1449 struct pf_src_node_list nodes; 1450 struct mtx lock; 1451}; 1452 1453struct pf_keyhash { 1454 LIST_HEAD(, pf_state_key) keys; 1455 struct mtx lock; 1456}; 1457 1458struct pf_idhash { 1459 LIST_HEAD(, pf_state) states; 1460 struct mtx lock; 1461}; 1462 1463extern u_long pf_hashmask; 1464extern u_long pf_srchashmask; 1465#define PF_HASHSIZ (32768) 1466VNET_DECLARE(struct pf_keyhash *, pf_keyhash); 1467VNET_DECLARE(struct pf_idhash *, pf_idhash); 1468#define V_pf_keyhash VNET(pf_keyhash) 1469#define V_pf_idhash VNET(pf_idhash) 1470VNET_DECLARE(struct pf_srchash *, pf_srchash); 1471#define V_pf_srchash VNET(pf_srchash) 1472 1473#define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1)) 1474 1475VNET_DECLARE(void *, pf_swi_cookie); 1476#define V_pf_swi_cookie VNET(pf_swi_cookie) 1477 1478VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]); 1479#define V_pf_stateid VNET(pf_stateid) 1480 1481TAILQ_HEAD(pf_altqqueue, pf_altq); 1482VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]); 1483#define V_pf_altqs VNET(pf_altqs) 1484VNET_DECLARE(struct pf_palist, pf_pabuf); 1485#define V_pf_pabuf VNET(pf_pabuf) 1486 1487VNET_DECLARE(u_int32_t, ticket_altqs_active); 1488#define V_ticket_altqs_active VNET(ticket_altqs_active) 1489VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1490#define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1491VNET_DECLARE(int, altqs_inactive_open); 1492#define V_altqs_inactive_open VNET(altqs_inactive_open) 1493VNET_DECLARE(u_int32_t, ticket_pabuf); 1494#define V_ticket_pabuf VNET(ticket_pabuf) 1495VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1496#define V_pf_altqs_active VNET(pf_altqs_active) 1497VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1498#define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1499 1500VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules); 1501#define V_pf_unlinked_rules VNET(pf_unlinked_rules) 1502 1503void pf_initialize(void); 1504void pf_mtag_initialize(void); 1505void pf_mtag_cleanup(void); 1506void pf_cleanup(void); 1507 1508struct pf_mtag *pf_get_mtag(struct mbuf *); 1509 1510extern void pf_calc_skip_steps(struct pf_rulequeue *); 1511#ifdef ALTQ 1512extern void pf_altq_ifnet_event(struct ifnet *, int); 1513#endif 1514VNET_DECLARE(uma_zone_t, pf_state_z); 1515#define V_pf_state_z VNET(pf_state_z) 1516VNET_DECLARE(uma_zone_t, pf_state_key_z); 1517#define V_pf_state_key_z VNET(pf_state_key_z) 1518VNET_DECLARE(uma_zone_t, pf_state_scrub_z); 1519#define V_pf_state_scrub_z VNET(pf_state_scrub_z) 1520 1521extern void pf_purge_thread(void *); 1522extern void pf_unload_vnet_purge(void); 1523extern void pf_intr(void *); 1524extern void pf_purge_expired_src_nodes(void); 1525 1526extern int pf_unlink_state(struct pf_state *, u_int); 1527#define PF_ENTER_LOCKED 0x00000001 1528#define PF_RETURN_LOCKED 0x00000002 1529extern int pf_state_insert(struct pfi_kif *, 1530 struct pf_state_key *, 1531 struct pf_state_key *, 1532 struct pf_state *); 1533extern void pf_free_state(struct pf_state *); 1534 1535static __inline void 1536pf_ref_state(struct pf_state *s) 1537{ 1538 1539 refcount_acquire(&s->refs); 1540} 1541 1542static __inline int 1543pf_release_state(struct pf_state *s) 1544{ 1545 1546 if (refcount_release(&s->refs)) { 1547 pf_free_state(s); 1548 return (1); 1549 } else 1550 return (0); 1551} 1552 1553extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t); 1554extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1555 u_int, int *); 1556extern struct pf_src_node *pf_find_src_node(struct pf_addr *, 1557 struct pf_rule *, sa_family_t, int); 1558extern void pf_unlink_src_node(struct pf_src_node *); 1559extern u_int pf_free_src_nodes(struct pf_src_node_list *); 1560extern void pf_print_state(struct pf_state *); 1561extern void pf_print_flags(u_int8_t); 1562extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1563 u_int8_t); 1564extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t, 1565 u_int16_t, u_int16_t, u_int8_t); 1566 1567VNET_DECLARE(struct ifnet *, sync_ifp); 1568#define V_sync_ifp VNET(sync_ifp); 1569VNET_DECLARE(struct pf_rule, pf_default_rule); 1570#define V_pf_default_rule VNET(pf_default_rule) 1571extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1572 u_int8_t); 1573void pf_free_rule(struct pf_rule *); 1574 1575#ifdef INET 1576int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *); 1577int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1578 struct pf_pdesc *); 1579#endif /* INET */ 1580 1581#ifdef INET6 1582int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *); 1583int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1584 struct pf_pdesc *); 1585void pf_poolmask(struct pf_addr *, struct pf_addr*, 1586 struct pf_addr *, struct pf_addr *, u_int8_t); 1587void pf_addr_inc(struct pf_addr *, sa_family_t); 1588int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *); 1589#endif /* INET6 */ 1590 1591u_int32_t pf_new_isn(struct pf_state *); 1592void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1593 sa_family_t); 1594void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1595void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t, 1596 u_int8_t); 1597void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t); 1598void pf_send_deferred_syn(struct pf_state *); 1599int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1600 struct pf_addr *, sa_family_t); 1601int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1602 struct pf_addr *, sa_family_t); 1603int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1604 1605void pf_normalize_init(void); 1606void pf_normalize_cleanup(void); 1607int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1608 struct pf_pdesc *); 1609void pf_normalize_tcp_cleanup(struct pf_state *); 1610int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1611 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1612int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1613 u_short *, struct tcphdr *, struct pf_state *, 1614 struct pf_state_peer *, struct pf_state_peer *, int *); 1615u_int32_t 1616 pf_state_expires(const struct pf_state *); 1617void pf_purge_expired_fragments(void); 1618int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *, 1619 int); 1620int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *); 1621struct pf_state_key *pf_alloc_state_key(int); 1622void pfr_initialize(void); 1623void pfr_cleanup(void); 1624int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1625void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1626 u_int64_t, int, int, int); 1627int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t); 1628void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1629struct pfr_ktable * 1630 pfr_attach_table(struct pf_ruleset *, char *); 1631void pfr_detach_table(struct pfr_ktable *); 1632int pfr_clr_tables(struct pfr_table *, int *, int); 1633int pfr_add_tables(struct pfr_table *, int, int *, int); 1634int pfr_del_tables(struct pfr_table *, int, int *, int); 1635int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1636int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1637int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1638int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1639int pfr_clr_addrs(struct pfr_table *, int *, int); 1640int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1641int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1642 int); 1643int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1644 int); 1645int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1646 int *, int *, int *, int, u_int32_t); 1647int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1648int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1649int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1650 int); 1651int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1652 int); 1653int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1654int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1655int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1656int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1657 int *, u_int32_t, int); 1658 1659MALLOC_DECLARE(PFI_MTYPE); 1660VNET_DECLARE(struct pfi_kif *, pfi_all); 1661#define V_pfi_all VNET(pfi_all) 1662 1663void pfi_initialize(void); 1664void pfi_initialize_vnet(void); 1665void pfi_cleanup(void); 1666void pfi_cleanup_vnet(void); 1667void pfi_kif_ref(struct pfi_kif *); 1668void pfi_kif_unref(struct pfi_kif *); 1669struct pfi_kif *pfi_kif_find(const char *); 1670struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *); 1671int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 1672void pfi_kif_purge(void); 1673int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1674 sa_family_t); 1675int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1676void pfi_dynaddr_remove(struct pfi_dynaddr *); 1677void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1678void pfi_update_status(const char *, struct pf_status *); 1679void pfi_get_ifaces(const char *, struct pfi_kif *, int *); 1680int pfi_set_flags(const char *, int); 1681int pfi_clear_flags(const char *, int); 1682 1683int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int); 1684int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int); 1685int pf_addr_cmp(struct pf_addr *, struct pf_addr *, 1686 sa_family_t); 1687void pf_qid2qname(u_int32_t, char *); 1688 1689VNET_DECLARE(struct pf_kstatus, pf_status); 1690#define V_pf_status VNET(pf_status) 1691 1692struct pf_limit { 1693 uma_zone_t zone; 1694 u_int limit; 1695}; 1696VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]); 1697#define V_pf_limits VNET(pf_limits) 1698 1699#endif /* _KERNEL */ 1700 1701#ifdef _KERNEL 1702VNET_DECLARE(struct pf_anchor_global, pf_anchors); 1703#define V_pf_anchors VNET(pf_anchors) 1704VNET_DECLARE(struct pf_anchor, pf_main_anchor); 1705#define V_pf_main_anchor VNET(pf_main_anchor) 1706#define pf_main_ruleset V_pf_main_anchor.ruleset 1707#endif 1708 1709/* these ruleset functions can be linked into userland programs (pfctl) */ 1710int pf_get_ruleset_number(u_int8_t); 1711void pf_init_ruleset(struct pf_ruleset *); 1712int pf_anchor_setup(struct pf_rule *, 1713 const struct pf_ruleset *, const char *); 1714int pf_anchor_copyout(const struct pf_ruleset *, 1715 const struct pf_rule *, struct pfioc_rule *); 1716void pf_anchor_remove(struct pf_rule *); 1717void pf_remove_if_empty_ruleset(struct pf_ruleset *); 1718struct pf_ruleset *pf_find_ruleset(const char *); 1719struct pf_ruleset *pf_find_or_create_ruleset(const char *); 1720void pf_rs_initialize(void); 1721 1722/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1723int pf_osfp_add(struct pf_osfp_ioctl *); 1724#ifdef _KERNEL 1725struct pf_osfp_enlist * 1726 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1727 const struct tcphdr *); 1728#endif /* _KERNEL */ 1729void pf_osfp_flush(void); 1730int pf_osfp_get(struct pf_osfp_ioctl *); 1731int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1732 1733#ifdef _KERNEL 1734void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 1735 1736void pf_step_into_anchor(struct pf_anchor_stackframe *, int *, 1737 struct pf_ruleset **, int, struct pf_rule **, 1738 struct pf_rule **, int *); 1739int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *, 1740 struct pf_ruleset **, int, struct pf_rule **, 1741 struct pf_rule **, int *); 1742 1743int pf_map_addr(u_int8_t, struct pf_rule *, 1744 struct pf_addr *, struct pf_addr *, 1745 struct pf_addr *, struct pf_src_node **); 1746struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 1747 int, int, struct pfi_kif *, struct pf_src_node **, 1748 struct pf_state_key **, struct pf_state_key **, 1749 struct pf_addr *, struct pf_addr *, 1750 uint16_t, uint16_t, struct pf_anchor_stackframe *); 1751 1752struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *, 1753 struct pf_addr *, u_int16_t, u_int16_t); 1754struct pf_state_key *pf_state_key_clone(struct pf_state_key *); 1755#endif /* _KERNEL */ 1756 1757#endif /* _NET_PFVAR_H_ */ 1758