pf.h revision 133574
1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 133574 2004-08-12 13:59:44Z mlaier $ */ 2/* $OpenBSD: pfvar.h,v 1.187 2004/03/22 04:54:18 mcbride Exp $ */ 3/* add $OpenBSD: pfvar.h,v 1.194 2004/05/11 07:34:11 dhartmei Exp $ */ 4 5/* 6 * Copyright (c) 2001 Daniel Hartmeier 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * - Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * - Redistributions in binary form must reproduce the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer in the documentation and/or other materials provided 18 * with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35#ifndef _NET_PFVAR_H_ 36#define _NET_PFVAR_H_ 37 38#include <sys/types.h> 39#include <sys/queue.h> 40#include <sys/tree.h> 41 42#include <net/radix.h> 43#ifdef __FreeBSD__ 44#include <net/if_clone.h> 45#include <vm/uma.h> 46#else 47#include <netinet/ip_ipsp.h> 48#endif 49 50#ifdef __FreeBSD__ 51#include <netinet/in.h> 52/* 53 * XXX 54 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 55 * This makes pfctl compilation difficult. 56 */ 57union sockaddr_union { 58 struct sockaddr sa; 59 struct sockaddr_in sin; 60 struct sockaddr_in6 sin6; 61}; 62#endif 63 64#include <netinet/tcp_fsm.h> 65 66struct ip; 67 68#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 69#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 70 71enum { PF_INOUT, PF_IN, PF_OUT }; 72enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 73enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 74 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 75enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 76 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 77enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 78 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 79enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 80enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 81 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 82 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 83/* 84 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 85 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 86 */ 87enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 88 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 89 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 90 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 91 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 92 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 93 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 94 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 95enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 96enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 97#define PF_POOL_IDMASK 0x0f 98enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 99 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 100enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 101 PF_ADDR_TABLE }; 102#define PF_POOL_TYPEMASK 0x0f 103#define PF_POOL_STICKYADDR 0x20 104#define PF_WSCALE_FLAG 0x80 105#define PF_WSCALE_MASK 0x0f 106 107struct pf_addr { 108 union { 109 struct in_addr v4; 110 struct in6_addr v6; 111 u_int8_t addr8[16]; 112 u_int16_t addr16[8]; 113 u_int32_t addr32[4]; 114 } pfa; /* 128-bit address */ 115#define v4 pfa.v4 116#define v6 pfa.v6 117#define addr8 pfa.addr8 118#define addr16 pfa.addr16 119#define addr32 pfa.addr32 120}; 121 122#define PF_TABLE_NAME_SIZE 32 123 124#define PFI_AFLAG_NETWORK 0x01 125#define PFI_AFLAG_BROADCAST 0x02 126#define PFI_AFLAG_PEER 0x04 127#define PFI_AFLAG_MODEMASK 0x07 128#define PFI_AFLAG_NOALIAS 0x08 129 130struct pf_addr_wrap { 131 union { 132 struct { 133 struct pf_addr addr; 134 struct pf_addr mask; 135 } a; 136 char ifname[IFNAMSIZ]; 137 char tblname[PF_TABLE_NAME_SIZE]; 138 } v; 139 union { 140 struct pfi_dynaddr *dyn; 141 struct pfr_ktable *tbl; 142 int dyncnt; 143 int tblcnt; 144 } p; 145 u_int8_t type; /* PF_ADDR_* */ 146 u_int8_t iflags; /* PFI_AFLAG_* */ 147}; 148 149#ifdef _KERNEL 150 151struct pfi_dynaddr { 152 struct pf_addr pfid_addr4; 153 struct pf_addr pfid_mask4; 154 struct pf_addr pfid_addr6; 155 struct pf_addr pfid_mask6; 156 struct pfr_ktable *pfid_kt; 157 struct pfi_kif *pfid_kif; 158 void *pfid_hook_cookie; 159 int pfid_net; /* optional mask, or 128 */ 160 int pfid_acnt4; /* address count, IPv4 */ 161 int pfid_acnt6; /* address count, IPv6 */ 162 sa_family_t pfid_af; /* rule address family */ 163 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 164}; 165 166/* 167 * Address manipulation macros 168 */ 169 170#ifdef __FreeBSD__ 171#define splsoftnet() splnet() 172 173#define HTONL(x) (x) = htonl((__uint32_t)(x)) 174#define HTONS(x) (x) = htons((__uint16_t)(x)) 175#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 176#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 177 178#define PF_NAME "pf" 179 180#define PR_NOWAIT M_NOWAIT 181#define pool_get(p, f) uma_zalloc(*(p), (f)) 182#define pool_put(p, o) uma_zfree(*(p), (o)) 183 184#define UMA_CREATE(var, type, desc) \ 185 var = uma_zcreate(desc, sizeof(type), \ 186 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 187 if (var == NULL) break 188#define UMA_DESTROY(var) \ 189 if(var) uma_zdestroy(var) 190 191extern struct mtx pf_task_mtx; 192 193#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h)) 194 195#define PF_LOCK() do { \ 196 PF_ASSERT(MA_NOTOWNED); \ 197 mtx_lock(&pf_task_mtx); \ 198} while(0) 199#define PF_UNLOCK() do { \ 200 PF_ASSERT(MA_OWNED); \ 201 mtx_unlock(&pf_task_mtx); \ 202} while(0) 203 204#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 205 PF_UNLOCK(); \ 206 r = copyin((uaddr), (kaddr), (len)); \ 207 PF_LOCK(); \ 208} while(0) 209 210#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 211 PF_UNLOCK(); \ 212 r = copyout((kaddr), (uaddr), (len)); \ 213 PF_LOCK(); \ 214} while(0) 215 216extern void init_pf_mutex(void); 217extern void destroy_pf_mutex(void); 218 219#define PF_MODVER 1 220#define PFLOG_MODVER 1 221#define PFSYNC_MODVER 1 222 223#define PFLOG_MINVER 1 224#define PFLOG_PREFVER PFLOG_MODVER 225#define PFLOG_MAXVER 1 226#define PFSYNC_MINVER 1 227#define PFSYNC_PREFVER PFSYNC_MODVER 228#define PFSYNC_MAXVER 1 229 230/* prototyped for pf_subr.c */ 231struct hook_desc { 232 TAILQ_ENTRY(hook_desc) hd_list; 233 void (*hd_fn)(void *); 234 void *hd_arg; 235}; 236TAILQ_HEAD(hook_desc_head, hook_desc); 237 238void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *); 239void hook_disestablish(struct hook_desc_head *, void *); 240void dohooks(struct hook_desc_head *, int); 241 242#define HOOK_REMOVE 0x01 243#define HOOK_FREE 0x02 244#endif /* __FreeBSD__ */ 245 246#ifdef INET 247#ifndef INET6 248#define PF_INET_ONLY 249#endif /* ! INET6 */ 250#endif /* INET */ 251 252#ifdef INET6 253#ifndef INET 254#define PF_INET6_ONLY 255#endif /* ! INET */ 256#endif /* INET6 */ 257 258#ifdef INET 259#ifdef INET6 260#define PF_INET_INET6 261#endif /* INET6 */ 262#endif /* INET */ 263 264#else 265 266#define PF_INET_INET6 267 268#endif /* _KERNEL */ 269 270/* Both IPv4 and IPv6 */ 271#ifdef PF_INET_INET6 272 273#define PF_AEQ(a, b, c) \ 274 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 275 ((a)->addr32[3] == (b)->addr32[3] && \ 276 (a)->addr32[2] == (b)->addr32[2] && \ 277 (a)->addr32[1] == (b)->addr32[1] && \ 278 (a)->addr32[0] == (b)->addr32[0])) \ 279 280#define PF_ANEQ(a, b, c) \ 281 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 282 ((a)->addr32[3] != (b)->addr32[3] || \ 283 (a)->addr32[2] != (b)->addr32[2] || \ 284 (a)->addr32[1] != (b)->addr32[1] || \ 285 (a)->addr32[0] != (b)->addr32[0])) \ 286 287#define PF_AZERO(a, c) \ 288 ((c == AF_INET && !(a)->addr32[0]) || \ 289 (!(a)->addr32[0] && !(a)->addr32[1] && \ 290 !(a)->addr32[2] && !(a)->addr32[3] )) \ 291 292#define PF_MATCHA(n, a, m, b, f) \ 293 pf_match_addr(n, a, m, b, f) 294 295#define PF_ACPY(a, b, f) \ 296 pf_addrcpy(a, b, f) 297 298#define PF_AINC(a, f) \ 299 pf_addr_inc(a, f) 300 301#define PF_POOLMASK(a, b, c, d, f) \ 302 pf_poolmask(a, b, c, d, f) 303 304#else 305 306/* Just IPv6 */ 307 308#ifdef PF_INET6_ONLY 309 310#define PF_AEQ(a, b, c) \ 311 ((a)->addr32[3] == (b)->addr32[3] && \ 312 (a)->addr32[2] == (b)->addr32[2] && \ 313 (a)->addr32[1] == (b)->addr32[1] && \ 314 (a)->addr32[0] == (b)->addr32[0]) \ 315 316#define PF_ANEQ(a, b, c) \ 317 ((a)->addr32[3] != (b)->addr32[3] || \ 318 (a)->addr32[2] != (b)->addr32[2] || \ 319 (a)->addr32[1] != (b)->addr32[1] || \ 320 (a)->addr32[0] != (b)->addr32[0]) \ 321 322#define PF_AZERO(a, c) \ 323 (!(a)->addr32[0] && \ 324 !(a)->addr32[1] && \ 325 !(a)->addr32[2] && \ 326 !(a)->addr32[3] ) \ 327 328#define PF_MATCHA(n, a, m, b, f) \ 329 pf_match_addr(n, a, m, b, f) 330 331#define PF_ACPY(a, b, f) \ 332 pf_addrcpy(a, b, f) 333 334#define PF_AINC(a, f) \ 335 pf_addr_inc(a, f) 336 337#define PF_POOLMASK(a, b, c, d, f) \ 338 pf_poolmask(a, b, c, d, f) 339 340#else 341 342/* Just IPv4 */ 343#ifdef PF_INET_ONLY 344 345#define PF_AEQ(a, b, c) \ 346 ((a)->addr32[0] == (b)->addr32[0]) 347 348#define PF_ANEQ(a, b, c) \ 349 ((a)->addr32[0] != (b)->addr32[0]) 350 351#define PF_AZERO(a, c) \ 352 (!(a)->addr32[0]) 353 354#define PF_MATCHA(n, a, m, b, f) \ 355 pf_match_addr(n, a, m, b, f) 356 357#define PF_ACPY(a, b, f) \ 358 (a)->v4.s_addr = (b)->v4.s_addr 359 360#define PF_AINC(a, f) \ 361 do { \ 362 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 363 } while (0) 364 365#define PF_POOLMASK(a, b, c, d, f) \ 366 do { \ 367 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 368 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 369 } while (0) 370 371#endif /* PF_INET_ONLY */ 372#endif /* PF_INET6_ONLY */ 373#endif /* PF_INET_INET6 */ 374 375#define PF_MISMATCHAW(aw, x, af, not) \ 376 ( \ 377 (((aw)->type == PF_ADDR_NOROUTE && \ 378 pf_routable((x), (af))) || \ 379 ((aw)->type == PF_ADDR_TABLE && \ 380 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 381 ((aw)->type == PF_ADDR_DYNIFTL && \ 382 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 383 ((aw)->type == PF_ADDR_ADDRMASK && \ 384 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 385 !PF_MATCHA(0, &(aw)->v.a.addr, \ 386 &(aw)->v.a.mask, (x), (af)))) != \ 387 (not) \ 388 ) 389 390struct pf_rule_uid { 391 uid_t uid[2]; 392 u_int8_t op; 393}; 394 395struct pf_rule_gid { 396 uid_t gid[2]; 397 u_int8_t op; 398}; 399 400struct pf_rule_addr { 401 struct pf_addr_wrap addr; 402 u_int16_t port[2]; 403 u_int8_t not; 404 u_int8_t port_op; 405}; 406 407struct pf_pooladdr { 408 struct pf_addr_wrap addr; 409 TAILQ_ENTRY(pf_pooladdr) entries; 410 char ifname[IFNAMSIZ]; 411 struct pfi_kif *kif; 412}; 413 414TAILQ_HEAD(pf_palist, pf_pooladdr); 415 416struct pf_poolhashkey { 417 union { 418 u_int8_t key8[16]; 419 u_int16_t key16[8]; 420 u_int32_t key32[4]; 421 } pfk; /* 128-bit hash key */ 422#define key8 pfk.key8 423#define key16 pfk.key16 424#define key32 pfk.key32 425}; 426 427struct pf_pool { 428 struct pf_palist list; 429 struct pf_pooladdr *cur; 430 struct pf_poolhashkey key; 431 struct pf_addr counter; 432 int tblidx; 433 u_int16_t proxy_port[2]; 434 u_int8_t port_op; 435 u_int8_t opts; 436}; 437 438 439/* A packed Operating System description for fingerprinting */ 440typedef u_int32_t pf_osfp_t; 441#define PF_OSFP_ANY ((pf_osfp_t)0) 442#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 443#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 444 445struct pf_osfp_entry { 446 SLIST_ENTRY(pf_osfp_entry) fp_entry; 447 pf_osfp_t fp_os; 448 int fp_enflags; 449#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 450#define PF_OSFP_GENERIC 0x002 /* generic signature */ 451#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 452#define PF_OSFP_LEN 32 453 char fp_class_nm[PF_OSFP_LEN]; 454 char fp_version_nm[PF_OSFP_LEN]; 455 char fp_subtype_nm[PF_OSFP_LEN]; 456}; 457#define PF_OSFP_ENTRY_EQ(a, b) \ 458 ((a)->fp_os == (b)->fp_os && \ 459 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 460 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 461 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 462 463/* handle pf_osfp_t packing */ 464#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 465#define _FP_UNUSED_BITS 1 466#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 467#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 468#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 469#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 470 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 471 ((1 << _FP_CLASS_BITS) - 1); \ 472 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 473 ((1 << _FP_VERSION_BITS) - 1);\ 474 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 475} while(0) 476#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 477 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 478 + _FP_SUBTYPE_BITS); \ 479 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 480 _FP_SUBTYPE_BITS; \ 481 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 482} while(0) 483 484/* the fingerprint of an OSes TCP SYN packet */ 485typedef u_int64_t pf_tcpopts_t; 486struct pf_os_fingerprint { 487 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 488 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 489 u_int16_t fp_wsize; /* TCP window size */ 490 u_int16_t fp_psize; /* ip->ip_len */ 491 u_int16_t fp_mss; /* TCP MSS */ 492 u_int16_t fp_flags; 493#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 494#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 495#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 496#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 497#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 498#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 499#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 500#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 501#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 502#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 503#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 504#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 505#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 506#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 507 u_int8_t fp_optcnt; /* TCP option count */ 508 u_int8_t fp_wscale; /* TCP window scaling */ 509 u_int8_t fp_ttl; /* IPv4 TTL */ 510#define PF_OSFP_MAXTTL_OFFSET 40 511/* TCP options packing */ 512#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 513#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 514#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 515#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 516#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 517#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 518#define PF_OSFP_MAX_OPTS \ 519 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 520 / PF_OSFP_TCPOPT_BITS 521 522 SLIST_ENTRY(pf_os_fingerprint) fp_next; 523}; 524 525struct pf_osfp_ioctl { 526 struct pf_osfp_entry fp_os; 527 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 528 u_int16_t fp_wsize; /* TCP window size */ 529 u_int16_t fp_psize; /* ip->ip_len */ 530 u_int16_t fp_mss; /* TCP MSS */ 531 u_int16_t fp_flags; 532 u_int8_t fp_optcnt; /* TCP option count */ 533 u_int8_t fp_wscale; /* TCP window scaling */ 534 u_int8_t fp_ttl; /* IPv4 TTL */ 535 536 int fp_getnum; /* DIOCOSFPGET number */ 537}; 538 539 540union pf_rule_ptr { 541 struct pf_rule *ptr; 542 u_int32_t nr; 543}; 544 545struct pf_rule { 546 struct pf_rule_addr src; 547 struct pf_rule_addr dst; 548#define PF_SKIP_IFP 0 549#define PF_SKIP_DIR 1 550#define PF_SKIP_AF 2 551#define PF_SKIP_PROTO 3 552#define PF_SKIP_SRC_ADDR 4 553#define PF_SKIP_SRC_PORT 5 554#define PF_SKIP_DST_ADDR 6 555#define PF_SKIP_DST_PORT 7 556#define PF_SKIP_COUNT 8 557 union pf_rule_ptr skip[PF_SKIP_COUNT]; 558#define PF_RULE_LABEL_SIZE 64 559 char label[PF_RULE_LABEL_SIZE]; 560#define PF_QNAME_SIZE 16 561 char ifname[IFNAMSIZ]; 562 char qname[PF_QNAME_SIZE]; 563 char pqname[PF_QNAME_SIZE]; 564#define PF_ANCHOR_NAME_SIZE 16 565 char anchorname[PF_ANCHOR_NAME_SIZE]; 566#define PF_TAG_NAME_SIZE 16 567 char tagname[PF_TAG_NAME_SIZE]; 568 char match_tagname[PF_TAG_NAME_SIZE]; 569 570 TAILQ_ENTRY(pf_rule) entries; 571 struct pf_pool rpool; 572 573 u_int64_t evaluations; 574 u_int64_t packets; 575 u_int64_t bytes; 576 577 struct pfi_kif *kif; 578 struct pf_anchor *anchor; 579 580 pf_osfp_t os_fingerprint; 581 582 u_int32_t timeout[PFTM_MAX]; 583 u_int32_t states; 584 u_int32_t max_states; 585 u_int32_t src_nodes; 586 u_int32_t max_src_nodes; 587 u_int32_t max_src_states; 588 u_int32_t qid; 589 u_int32_t pqid; 590 u_int32_t rt_listid; 591 u_int32_t nr; 592 593 u_int16_t return_icmp; 594 u_int16_t return_icmp6; 595 u_int16_t max_mss; 596 u_int16_t tag; 597 u_int16_t match_tag; 598 599 struct pf_rule_uid uid; 600 struct pf_rule_gid gid; 601 602 u_int32_t rule_flag; 603 u_int8_t action; 604 u_int8_t direction; 605 u_int8_t log; 606 u_int8_t quick; 607 u_int8_t ifnot; 608 u_int8_t match_tag_not; 609 u_int8_t natpass; 610 611#define PF_STATE_NORMAL 0x1 612#define PF_STATE_MODULATE 0x2 613#define PF_STATE_SYNPROXY 0x3 614 u_int8_t keep_state; 615 sa_family_t af; 616 u_int8_t proto; 617 u_int8_t type; 618 u_int8_t code; 619 u_int8_t flags; 620 u_int8_t flagset; 621 u_int8_t min_ttl; 622 u_int8_t allow_opts; 623 u_int8_t rt; 624 u_int8_t return_ttl; 625 u_int8_t tos; 626}; 627 628/* rule flags */ 629#define PFRULE_DROP 0x0000 630#define PFRULE_RETURNRST 0x0001 631#define PFRULE_FRAGMENT 0x0002 632#define PFRULE_RETURNICMP 0x0004 633#define PFRULE_RETURN 0x0008 634#define PFRULE_NOSYNC 0x0010 635#define PFRULE_SRCTRACK 0x0020 /* track source states */ 636#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 637 638/* scrub flags */ 639#define PFRULE_NODF 0x0100 640#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 641#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 642#define PFRULE_RANDOMID 0x0800 643#define PFRULE_REASSEMBLE_TCP 0x1000 644 645/* rule flags again */ 646#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 647#define PFRULE_GRBOUND 0x00020000 /* group-bound */ 648 649#define PFSTATE_HIWAT 10000 /* default state table size */ 650 651struct pf_src_node { 652 RB_ENTRY(pf_src_node) entry; 653 struct pf_addr addr; 654 struct pf_addr raddr; 655 union pf_rule_ptr rule; 656 struct pfi_kif *kif; 657 u_int32_t bytes; 658 u_int32_t packets; 659 u_int32_t states; 660 u_int32_t creation; 661 u_int32_t expire; 662 sa_family_t af; 663 u_int8_t ruletype; 664}; 665 666#define PFSNODE_HIWAT 10000 /* default source node table size */ 667 668struct pf_state_scrub { 669 u_int16_t pfss_flags; 670#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 671 u_int8_t pfss_ttl; /* stashed TTL */ 672 u_int8_t pad; 673 u_int32_t pfss_ts_mod; /* timestamp modulation */ 674}; 675 676struct pf_state_host { 677 struct pf_addr addr; 678 u_int16_t port; 679 u_int16_t pad; 680}; 681 682struct pf_state_peer { 683 u_int32_t seqlo; /* Max sequence number sent */ 684 u_int32_t seqhi; /* Max the other end ACKd + win */ 685 u_int32_t seqdiff; /* Sequence number modulator */ 686 u_int16_t max_win; /* largest window (pre scaling) */ 687 u_int8_t state; /* active state level */ 688 u_int8_t wscale; /* window scaling factor */ 689 u_int16_t mss; /* Maximum segment size option */ 690 struct pf_state_scrub *scrub; /* state is scrubbed */ 691}; 692 693TAILQ_HEAD(pf_state_queue, pf_state); 694 695struct pf_state { 696 u_int64_t id; 697 union { 698 struct { 699 RB_ENTRY(pf_state) entry_lan_ext; 700 RB_ENTRY(pf_state) entry_ext_gwy; 701 RB_ENTRY(pf_state) entry_id; 702 TAILQ_ENTRY(pf_state) entry_updates; 703 struct pfi_kif *kif; 704 } s; 705 char ifname[IFNAMSIZ]; 706 } u; 707 struct pf_state_host lan; 708 struct pf_state_host gwy; 709 struct pf_state_host ext; 710 struct pf_state_peer src; 711 struct pf_state_peer dst; 712 union pf_rule_ptr rule; 713 union pf_rule_ptr anchor; 714 union pf_rule_ptr nat_rule; 715 struct pf_addr rt_addr; 716 struct pfi_kif *rt_kif; 717 struct pf_src_node *src_node; 718 struct pf_src_node *nat_src_node; 719 u_int32_t creation; 720 u_int32_t expire; 721 u_int32_t pfsync_time; 722 u_int32_t packets[2]; 723 u_int32_t bytes[2]; 724 u_int32_t creatorid; 725 sa_family_t af; 726 u_int8_t proto; 727 u_int8_t direction; 728 u_int8_t log; 729 u_int8_t allow_opts; 730 u_int8_t timeout; 731 u_int8_t sync_flags; 732#define PFSTATE_NOSYNC 0x01 733#define PFSTATE_FROMSYNC 0x02 734 u_int8_t pad; 735}; 736 737TAILQ_HEAD(pf_rulequeue, pf_rule); 738 739struct pf_anchor; 740 741struct pf_ruleset { 742 TAILQ_ENTRY(pf_ruleset) entries; 743#define PF_RULESET_NAME_SIZE 16 744 char name[PF_RULESET_NAME_SIZE]; 745 struct { 746 struct pf_rulequeue queues[2]; 747 struct { 748 struct pf_rulequeue *ptr; 749 u_int32_t ticket; 750 int open; 751 } active, inactive; 752 } rules[PF_RULESET_MAX]; 753 struct pf_anchor *anchor; 754 u_int32_t tticket; 755 int tables; 756 int topen; 757}; 758 759TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 760 761struct pf_anchor { 762 TAILQ_ENTRY(pf_anchor) entries; 763 char name[PF_ANCHOR_NAME_SIZE]; 764 struct pf_rulesetqueue rulesets; 765 int tables; 766}; 767 768TAILQ_HEAD(pf_anchorqueue, pf_anchor); 769 770#define PF_RESERVED_ANCHOR "_pf" 771#define PF_INTERFACE_RULESET "_if" 772 773#define PFR_TFLAG_PERSIST 0x00000001 774#define PFR_TFLAG_CONST 0x00000002 775#define PFR_TFLAG_ACTIVE 0x00000004 776#define PFR_TFLAG_INACTIVE 0x00000008 777#define PFR_TFLAG_REFERENCED 0x00000010 778#define PFR_TFLAG_REFDANCHOR 0x00000020 779#define PFR_TFLAG_USRMASK 0x00000003 780#define PFR_TFLAG_SETMASK 0x0000003C 781#define PFR_TFLAG_ALLMASK 0x0000003F 782 783struct pfr_table { 784 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 785 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 786 char pfrt_name[PF_TABLE_NAME_SIZE]; 787 u_int32_t pfrt_flags; 788 u_int8_t pfrt_fback; 789}; 790 791enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 792 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 793 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 794 795struct pfr_addr { 796 union { 797 struct in_addr _pfra_ip4addr; 798 struct in6_addr _pfra_ip6addr; 799 } pfra_u; 800 u_int8_t pfra_af; 801 u_int8_t pfra_net; 802 u_int8_t pfra_not; 803 u_int8_t pfra_fback; 804}; 805#define pfra_ip4addr pfra_u._pfra_ip4addr 806#define pfra_ip6addr pfra_u._pfra_ip6addr 807 808enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 809enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 810#define PFR_OP_XPASS PFR_OP_ADDR_MAX 811 812struct pfr_astats { 813 struct pfr_addr pfras_a; 814 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 815 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 816 long pfras_tzero; 817}; 818 819enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 820 821struct pfr_tstats { 822 struct pfr_table pfrts_t; 823 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 824 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 825 u_int64_t pfrts_match; 826 u_int64_t pfrts_nomatch; 827 long pfrts_tzero; 828 int pfrts_cnt; 829 int pfrts_refcnt[PFR_REFCNT_MAX]; 830}; 831#define pfrts_name pfrts_t.pfrt_name 832#define pfrts_flags pfrts_t.pfrt_flags 833 834SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 835struct pfr_kentry { 836 struct radix_node pfrke_node[2]; 837 union sockaddr_union pfrke_sa; 838 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 839 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 840 SLIST_ENTRY(pfr_kentry) pfrke_workq; 841 long pfrke_tzero; 842 u_int8_t pfrke_af; 843 u_int8_t pfrke_net; 844 u_int8_t pfrke_not; 845 u_int8_t pfrke_mark; 846}; 847 848SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 849RB_HEAD(pfr_ktablehead, pfr_ktable); 850struct pfr_ktable { 851 struct pfr_tstats pfrkt_ts; 852 RB_ENTRY(pfr_ktable) pfrkt_tree; 853 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 854 struct radix_node_head *pfrkt_ip4; 855 struct radix_node_head *pfrkt_ip6; 856 struct pfr_ktable *pfrkt_shadow; 857 struct pfr_ktable *pfrkt_root; 858 struct pf_ruleset *pfrkt_rs; 859 long pfrkt_larg; 860 int pfrkt_nflags; 861}; 862#define pfrkt_t pfrkt_ts.pfrts_t 863#define pfrkt_name pfrkt_t.pfrt_name 864#define pfrkt_anchor pfrkt_t.pfrt_anchor 865#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 866#define pfrkt_flags pfrkt_t.pfrt_flags 867#define pfrkt_cnt pfrkt_ts.pfrts_cnt 868#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 869#define pfrkt_packets pfrkt_ts.pfrts_packets 870#define pfrkt_bytes pfrkt_ts.pfrts_bytes 871#define pfrkt_match pfrkt_ts.pfrts_match 872#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 873#define pfrkt_tzero pfrkt_ts.pfrts_tzero 874 875RB_HEAD(pf_state_tree_lan_ext, pf_state); 876RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 877 u.s.entry_lan_ext, pf_state_compare_lan_ext); 878 879RB_HEAD(pf_state_tree_ext_gwy, pf_state); 880RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 881 u.s.entry_ext_gwy, pf_state_compare_ext_gwy); 882 883struct pfi_if { 884 char pfif_name[IFNAMSIZ]; 885 u_int64_t pfif_packets[2][2][2]; 886 u_int64_t pfif_bytes[2][2][2]; 887 u_int64_t pfif_addcnt; 888 u_int64_t pfif_delcnt; 889 long pfif_tzero; 890 int pfif_states; 891 int pfif_rules; 892 int pfif_flags; 893}; 894 895TAILQ_HEAD(pfi_grouphead, pfi_kif); 896TAILQ_HEAD(pfi_statehead, pfi_kif); 897RB_HEAD(pfi_ifhead, pfi_kif); 898struct pfi_kif { 899 struct pfi_if pfik_if; 900 RB_ENTRY(pfi_kif) pfik_tree; 901 struct pf_state_tree_lan_ext pfik_lan_ext; 902 struct pf_state_tree_ext_gwy pfik_ext_gwy; 903 struct pfi_grouphead pfik_grouphead; 904 TAILQ_ENTRY(pfi_kif) pfik_instances; 905 TAILQ_ENTRY(pfi_kif) pfik_w_states; 906 struct hook_desc_head *pfik_ah_head; 907 void *pfik_ah_cookie; 908 struct pfi_kif *pfik_parent; 909 struct ifnet *pfik_ifp; 910 int pfik_states; 911 int pfik_rules; 912}; 913#define pfik_name pfik_if.pfif_name 914#define pfik_packets pfik_if.pfif_packets 915#define pfik_bytes pfik_if.pfif_bytes 916#define pfik_tzero pfik_if.pfif_tzero 917#define pfik_flags pfik_if.pfif_flags 918#define pfik_addcnt pfik_if.pfif_addcnt 919#define pfik_delcnt pfik_if.pfif_delcnt 920#define pfik_states pfik_if.pfif_states 921#define pfik_rules pfik_if.pfif_rules 922 923#define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 924#define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 925#define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 926#define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 927#define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 928#define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */ 929 930struct pf_pdesc { 931 u_int64_t tot_len; /* Make Mickey money */ 932 union { 933 struct tcphdr *tcp; 934 struct udphdr *udp; 935 struct icmp *icmp; 936#ifdef INET6 937 struct icmp6_hdr *icmp6; 938#endif /* INET6 */ 939 void *any; 940 } hdr; 941 struct pf_addr baddr; /* address before translation */ 942 struct pf_addr naddr; /* address after translation */ 943 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 944 struct pf_addr *src; 945 struct pf_addr *dst; 946 u_int16_t *ip_sum; 947 u_int32_t p_len; /* total length of payload */ 948 u_int16_t flags; /* Let SCRUB trigger behavior in 949 * state code. Easier than tags */ 950#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 951 sa_family_t af; 952 u_int8_t proto; 953 u_int8_t tos; 954}; 955 956/* flags for RDR options */ 957#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 958#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 959 960/* Reasons code for passing/dropping a packet */ 961#define PFRES_MATCH 0 /* Explicit match of a rule */ 962#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 963#define PFRES_FRAG 2 /* Dropping following fragment */ 964#define PFRES_SHORT 3 /* Dropping short packet */ 965#define PFRES_NORM 4 /* Dropping by normalizer */ 966#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 967#define PFRES_MAX 6 /* total+1 */ 968 969#define PFRES_NAMES { \ 970 "match", \ 971 "bad-offset", \ 972 "fragment", \ 973 "short", \ 974 "normalize", \ 975 "memory", \ 976 NULL \ 977} 978 979/* UDP state enumeration */ 980#define PFUDPS_NO_TRAFFIC 0 981#define PFUDPS_SINGLE 1 982#define PFUDPS_MULTIPLE 2 983 984#define PFUDPS_NSTATES 3 /* number of state levels */ 985 986#define PFUDPS_NAMES { \ 987 "NO_TRAFFIC", \ 988 "SINGLE", \ 989 "MULTIPLE", \ 990 NULL \ 991} 992 993/* Other protocol state enumeration */ 994#define PFOTHERS_NO_TRAFFIC 0 995#define PFOTHERS_SINGLE 1 996#define PFOTHERS_MULTIPLE 2 997 998#define PFOTHERS_NSTATES 3 /* number of state levels */ 999 1000#define PFOTHERS_NAMES { \ 1001 "NO_TRAFFIC", \ 1002 "SINGLE", \ 1003 "MULTIPLE", \ 1004 NULL \ 1005} 1006 1007#define FCNT_STATE_SEARCH 0 1008#define FCNT_STATE_INSERT 1 1009#define FCNT_STATE_REMOVALS 2 1010#define FCNT_MAX 3 1011 1012#define SCNT_SRC_NODE_SEARCH 0 1013#define SCNT_SRC_NODE_INSERT 1 1014#define SCNT_SRC_NODE_REMOVALS 2 1015#define SCNT_MAX 3 1016 1017#define ACTION_SET(a, x) \ 1018 do { \ 1019 if ((a) != NULL) \ 1020 *(a) = (x); \ 1021 } while (0) 1022 1023#define REASON_SET(a, x) \ 1024 do { \ 1025 if ((a) != NULL) \ 1026 *(a) = (x); \ 1027 if (x < PFRES_MAX) \ 1028 pf_status.counters[x]++; \ 1029 } while (0) 1030 1031struct pf_status { 1032 u_int64_t counters[PFRES_MAX]; 1033 u_int64_t fcounters[FCNT_MAX]; 1034 u_int64_t scounters[SCNT_MAX]; 1035 u_int64_t pcounters[2][2][3]; 1036 u_int64_t bcounters[2][2]; 1037 u_int64_t stateid; 1038 u_int32_t running; 1039 u_int32_t states; 1040 u_int32_t src_nodes; 1041 u_int32_t since; 1042 u_int32_t debug; 1043 u_int32_t hostid; 1044 char ifname[IFNAMSIZ]; 1045}; 1046 1047struct cbq_opts { 1048 u_int minburst; 1049 u_int maxburst; 1050 u_int pktsize; 1051 u_int maxpktsize; 1052 u_int ns_per_byte; 1053 u_int maxidle; 1054 int minidle; 1055 u_int offtime; 1056 int flags; 1057}; 1058 1059struct priq_opts { 1060 int flags; 1061}; 1062 1063struct hfsc_opts { 1064 /* real-time service curve */ 1065 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1066 u_int rtsc_d; /* the x-projection of m1 in msec */ 1067 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1068 /* link-sharing service curve */ 1069 u_int lssc_m1; 1070 u_int lssc_d; 1071 u_int lssc_m2; 1072 /* upper-limit service curve */ 1073 u_int ulsc_m1; 1074 u_int ulsc_d; 1075 u_int ulsc_m2; 1076 int flags; 1077}; 1078 1079struct pf_altq { 1080 char ifname[IFNAMSIZ]; 1081 1082 void *altq_disc; /* discipline-specific state */ 1083 TAILQ_ENTRY(pf_altq) entries; 1084 1085 /* scheduler spec */ 1086 u_int8_t scheduler; /* scheduler type */ 1087 u_int16_t tbrsize; /* tokenbucket regulator size */ 1088 u_int32_t ifbandwidth; /* interface bandwidth */ 1089 1090 /* queue spec */ 1091 char qname[PF_QNAME_SIZE]; /* queue name */ 1092 char parent[PF_QNAME_SIZE]; /* parent name */ 1093 u_int32_t parent_qid; /* parent queue id */ 1094 u_int32_t bandwidth; /* queue bandwidth */ 1095 u_int8_t priority; /* priority */ 1096 u_int16_t qlimit; /* queue size limit */ 1097 u_int16_t flags; /* misc flags */ 1098 union { 1099 struct cbq_opts cbq_opts; 1100 struct priq_opts priq_opts; 1101 struct hfsc_opts hfsc_opts; 1102 } pq_u; 1103 1104 u_int32_t qid; /* return value */ 1105}; 1106 1107struct pf_tag { 1108 u_int16_t tag; /* tag id */ 1109}; 1110 1111struct pf_tagname { 1112 TAILQ_ENTRY(pf_tagname) entries; 1113 char name[PF_TAG_NAME_SIZE]; 1114 u_int16_t tag; 1115 int ref; 1116}; 1117 1118#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1119#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1120#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1121#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1122 1123/* 1124 * ioctl parameter structures 1125 */ 1126 1127struct pfioc_pooladdr { 1128 u_int32_t action; 1129 u_int32_t ticket; 1130 u_int32_t nr; 1131 u_int32_t r_num; 1132 u_int8_t r_action; 1133 u_int8_t r_last; 1134 u_int8_t af; 1135 char anchor[PF_ANCHOR_NAME_SIZE]; 1136 char ruleset[PF_RULESET_NAME_SIZE]; 1137 struct pf_pooladdr addr; 1138}; 1139 1140struct pfioc_rule { 1141 u_int32_t action; 1142 u_int32_t ticket; 1143 u_int32_t pool_ticket; 1144 u_int32_t nr; 1145 char anchor[PF_ANCHOR_NAME_SIZE]; 1146 char ruleset[PF_RULESET_NAME_SIZE]; 1147 struct pf_rule rule; 1148}; 1149 1150struct pfioc_natlook { 1151 struct pf_addr saddr; 1152 struct pf_addr daddr; 1153 struct pf_addr rsaddr; 1154 struct pf_addr rdaddr; 1155 u_int16_t sport; 1156 u_int16_t dport; 1157 u_int16_t rsport; 1158 u_int16_t rdport; 1159 sa_family_t af; 1160 u_int8_t proto; 1161 u_int8_t direction; 1162}; 1163 1164struct pfioc_state { 1165 u_int32_t nr; 1166 struct pf_state state; 1167}; 1168 1169struct pfioc_state_kill { 1170 /* XXX returns the number of states killed in psk_af */ 1171 sa_family_t psk_af; 1172 int psk_proto; 1173 struct pf_rule_addr psk_src; 1174 struct pf_rule_addr psk_dst; 1175 char psk_ifname[IFNAMSIZ]; 1176}; 1177 1178struct pfioc_states { 1179 int ps_len; 1180 union { 1181 caddr_t psu_buf; 1182 struct pf_state *psu_states; 1183 } ps_u; 1184#define ps_buf ps_u.psu_buf 1185#define ps_states ps_u.psu_states 1186}; 1187 1188struct pfioc_src_nodes { 1189 int psn_len; 1190 union { 1191 caddr_t psu_buf; 1192 struct pf_src_node *psu_src_nodes; 1193 } psn_u; 1194#define psn_buf psn_u.psu_buf 1195#define psn_src_nodes psn_u.psu_src_nodes 1196}; 1197 1198struct pfioc_if { 1199 char ifname[IFNAMSIZ]; 1200}; 1201 1202struct pfioc_tm { 1203 int timeout; 1204 int seconds; 1205}; 1206 1207struct pfioc_limit { 1208 int index; 1209 unsigned limit; 1210}; 1211 1212struct pfioc_altq { 1213 u_int32_t action; 1214 u_int32_t ticket; 1215 u_int32_t nr; 1216 struct pf_altq altq; 1217}; 1218 1219struct pfioc_qstats { 1220 u_int32_t ticket; 1221 u_int32_t nr; 1222 void *buf; 1223 int nbytes; 1224 u_int8_t scheduler; 1225}; 1226 1227struct pfioc_anchor { 1228 u_int32_t nr; 1229 char name[PF_ANCHOR_NAME_SIZE]; 1230}; 1231 1232struct pfioc_ruleset { 1233 u_int32_t nr; 1234 char anchor[PF_ANCHOR_NAME_SIZE]; 1235 char name[PF_RULESET_NAME_SIZE]; 1236}; 1237 1238#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1239#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1240struct pfioc_trans { 1241 int size; /* number of elements */ 1242 int esize; /* size of each element in bytes */ 1243 struct pfioc_trans_e { 1244 int rs_num; 1245 char anchor[PF_ANCHOR_NAME_SIZE]; 1246 char ruleset[PF_RULESET_NAME_SIZE]; 1247 u_int32_t ticket; 1248 } *array; 1249}; 1250 1251#define PFR_FLAG_ATOMIC 0x00000001 1252#define PFR_FLAG_DUMMY 0x00000002 1253#define PFR_FLAG_FEEDBACK 0x00000004 1254#define PFR_FLAG_CLSTATS 0x00000008 1255#define PFR_FLAG_ADDRSTOO 0x00000010 1256#define PFR_FLAG_REPLACE 0x00000020 1257#define PFR_FLAG_ALLRSETS 0x00000040 1258#define PFR_FLAG_ALLMASK 0x0000007F 1259#ifdef _KERNEL 1260#define PFR_FLAG_USERIOCTL 0x10000000 1261#endif 1262 1263struct pfioc_table { 1264 struct pfr_table pfrio_table; 1265 void *pfrio_buffer; 1266 int pfrio_esize; 1267 int pfrio_size; 1268 int pfrio_size2; 1269 int pfrio_nadd; 1270 int pfrio_ndel; 1271 int pfrio_nchange; 1272 int pfrio_flags; 1273 u_int32_t pfrio_ticket; 1274}; 1275#define pfrio_exists pfrio_nadd 1276#define pfrio_nzero pfrio_nadd 1277#define pfrio_nmatch pfrio_nadd 1278#define pfrio_naddr pfrio_size2 1279#define pfrio_setflag pfrio_size2 1280#define pfrio_clrflag pfrio_nadd 1281 1282 1283#define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1284#define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1285#define PFI_FLAG_ALLMASK 0x0003 1286 1287struct pfioc_iface { 1288 char pfiio_name[IFNAMSIZ]; 1289 void *pfiio_buffer; 1290 int pfiio_esize; 1291 int pfiio_size; 1292 int pfiio_nzero; 1293 int pfiio_flags; 1294}; 1295 1296 1297/* 1298 * ioctl operations 1299 */ 1300 1301#define DIOCSTART _IO ('D', 1) 1302#define DIOCSTOP _IO ('D', 2) 1303#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1304#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1305#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1306#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1307#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1308/* XXX cut 8 - 17 */ 1309#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1310#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1311#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1312#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1313#define DIOCCLRSTATUS _IO ('D', 22) 1314#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1315#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1316#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1317#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1318/* XXX cut 26 - 28 */ 1319#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1320#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1321#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1322#define DIOCCLRRULECTRS _IO ('D', 38) 1323#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1324#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1325#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1326#define DIOCSTARTALTQ _IO ('D', 42) 1327#define DIOCSTOPALTQ _IO ('D', 43) 1328#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1329#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1330#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1331#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1332#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1333#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1334#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1335#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1336#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1337#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1338#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1339#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1340#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1341#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1342#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1343#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1344#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1345#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1346#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1347#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1348#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1349#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1350#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1351#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1352#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1353#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1354#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1355#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1356#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1357#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1358#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1359#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1360#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1361#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1362#define DIOCOSFPFLUSH _IO('D', 78) 1363#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1364#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1365#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1366#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1367#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1368#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1369#define DIOCCLRSRCNODES _IO('D', 85) 1370#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1371#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1372#define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1373#ifdef __FreeBSD__ 1374struct pf_ifspeed { 1375 char ifname[IFNAMSIZ]; 1376 u_int32_t baudrate; 1377}; 1378#define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed) 1379#endif 1380 1381#ifdef _KERNEL 1382RB_HEAD(pf_src_tree, pf_src_node); 1383RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1384extern struct pf_src_tree tree_src_tracking; 1385 1386RB_HEAD(pf_state_tree_id, pf_state); 1387RB_PROTOTYPE(pf_state_tree_id, pf_state, 1388 entry_id, pf_state_compare_id); 1389extern struct pf_state_tree_id tree_id; 1390extern struct pf_state_queue state_updates; 1391 1392extern struct pf_anchorqueue pf_anchors; 1393extern struct pf_ruleset pf_main_ruleset; 1394TAILQ_HEAD(pf_poolqueue, pf_pool); 1395extern struct pf_poolqueue pf_pools[2]; 1396TAILQ_HEAD(pf_altqqueue, pf_altq); 1397extern struct pf_altqqueue pf_altqs[2]; 1398extern struct pf_palist pf_pabuf; 1399extern struct pfi_kif **pfi_index2kif; 1400 1401extern u_int32_t ticket_altqs_active; 1402extern u_int32_t ticket_altqs_inactive; 1403extern int altqs_inactive_open; 1404extern u_int32_t ticket_pabuf; 1405extern struct pf_altqqueue *pf_altqs_active; 1406extern struct pf_altqqueue *pf_altqs_inactive; 1407extern struct pf_poolqueue *pf_pools_active; 1408extern struct pf_poolqueue *pf_pools_inactive; 1409extern int pf_tbladdr_setup(struct pf_ruleset *, 1410 struct pf_addr_wrap *); 1411extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1412extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1413extern void pf_calc_skip_steps(struct pf_rulequeue *); 1414extern void pf_update_anchor_rules(void); 1415#ifdef __FreeBSD__ 1416extern uma_zone_t pf_src_tree_pl, pf_rule_pl; 1417extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1418extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl; 1419extern uma_zone_t pf_cache_pl, pf_cent_pl; 1420extern uma_zone_t pf_state_scrub_pl; 1421extern uma_zone_t pfi_addr_pl; 1422#else 1423extern struct pool pf_src_tree_pl, pf_rule_pl; 1424extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1425extern struct pool pf_state_scrub_pl; 1426#endif 1427extern void pf_purge_timeout(void *); 1428extern void pf_purge_expired_src_nodes(void); 1429extern void pf_purge_expired_states(void); 1430extern int pf_insert_state(struct pfi_kif *, 1431 struct pf_state *); 1432extern int pf_insert_src_node(struct pf_src_node **, 1433 struct pf_rule *, struct pf_addr *, 1434 sa_family_t); 1435void pf_src_tree_remove_state(struct pf_state *); 1436extern struct pf_state *pf_find_state_byid(struct pf_state *); 1437extern struct pf_state *pf_find_state_all(struct pf_state *key, 1438 u_int8_t tree, int *more); 1439extern struct pf_anchor *pf_find_anchor(const char *); 1440extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1441extern struct pf_ruleset *pf_find_or_create_ruleset( 1442 char[PF_ANCHOR_NAME_SIZE], 1443 char[PF_RULESET_NAME_SIZE]); 1444extern void pf_remove_if_empty_ruleset( 1445 struct pf_ruleset *); 1446extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1447 u_int8_t); 1448 1449extern struct ifnet *sync_ifp; 1450extern struct pf_rule pf_default_rule; 1451extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1452 u_int8_t); 1453void pf_rm_rule(struct pf_rulequeue *, 1454 struct pf_rule *); 1455 1456#ifdef INET 1457int pf_test(int, struct ifnet *, struct mbuf **); 1458#endif /* INET */ 1459 1460#ifdef INET6 1461int pf_test6(int, struct ifnet *, struct mbuf **); 1462void pf_poolmask(struct pf_addr *, struct pf_addr*, 1463 struct pf_addr *, struct pf_addr *, u_int8_t); 1464void pf_addr_inc(struct pf_addr *, sa_family_t); 1465#endif /* INET6 */ 1466 1467void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1468 sa_family_t); 1469void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1470int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1471 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1472int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1473 struct pf_addr *, sa_family_t); 1474int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1475int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1476int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1477int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1478 1479void pf_normalize_init(void); 1480int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *); 1481int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *); 1482int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1483 struct pf_pdesc *); 1484void pf_normalize_tcp_cleanup(struct pf_state *); 1485int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1486 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1487int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1488 u_short *, struct tcphdr *, struct pf_state_peer *, 1489 struct pf_state_peer *, int *); 1490u_int32_t 1491 pf_state_expires(const struct pf_state *); 1492void pf_purge_expired_fragments(void); 1493int pf_routable(struct pf_addr *addr, sa_family_t af); 1494void pfr_initialize(void); 1495int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1496void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1497 u_int64_t, int, int, int); 1498int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1499 struct pf_addr **, struct pf_addr **, sa_family_t); 1500void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1501struct pfr_ktable * 1502 pfr_attach_table(struct pf_ruleset *, char *); 1503void pfr_detach_table(struct pfr_ktable *); 1504int pfr_clr_tables(struct pfr_table *, int *, int); 1505int pfr_add_tables(struct pfr_table *, int, int *, int); 1506int pfr_del_tables(struct pfr_table *, int, int *, int); 1507int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1508int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1509int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1510int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1511int pfr_clr_addrs(struct pfr_table *, int *, int); 1512int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1513 int); 1514int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1515 int); 1516int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1517 int *, int *, int *, int); 1518int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1519int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1520int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1521 int); 1522int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1523 int); 1524int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1525int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1526int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1527int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1528 int *, u_int32_t, int); 1529 1530void pfi_initialize(void); 1531#ifdef __FreeBSD__ 1532void pfi_cleanup(void); 1533#endif 1534void pfi_attach_clone(struct if_clone *); 1535void pfi_attach_ifnet(struct ifnet *); 1536void pfi_detach_ifnet(struct ifnet *); 1537struct pfi_kif *pfi_lookup_create(const char *); 1538struct pfi_kif *pfi_lookup_if(const char *); 1539int pfi_maybe_destroy(struct pfi_kif *); 1540struct pfi_kif *pfi_attach_rule(const char *); 1541void pfi_detach_rule(struct pfi_kif *); 1542void pfi_attach_state(struct pfi_kif *); 1543void pfi_detach_state(struct pfi_kif *); 1544int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1545void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1546void pfi_dynaddr_remove(struct pf_addr_wrap *); 1547void pfi_fill_oldstatus(struct pf_status *); 1548int pfi_clr_istats(const char *, int *, int); 1549int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1550int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1551 sa_family_t); 1552 1553extern struct pfi_statehead pfi_statehead; 1554 1555u_int16_t pf_tagname2tag(char *); 1556void pf_tag2tagname(u_int16_t, char *); 1557void pf_tag_unref(u_int16_t); 1558int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1559u_int32_t pf_qname2qid(char *); 1560void pf_qid2qname(u_int32_t, char *); 1561void pf_qid_unref(u_int32_t); 1562 1563extern struct pf_status pf_status; 1564 1565#ifdef __FreeBSD__ 1566extern uma_zone_t pf_frent_pl, pf_frag_pl; 1567#else 1568extern struct pool pf_frent_pl, pf_frag_pl; 1569#endif 1570 1571struct pf_pool_limit { 1572 void *pp; 1573 unsigned limit; 1574}; 1575extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1576 1577#ifdef __FreeBSD__ 1578struct pf_frent { 1579 LIST_ENTRY(pf_frent) fr_next; 1580 struct ip *fr_ip; 1581 struct mbuf *fr_m; 1582}; 1583 1584struct pf_frcache { 1585 LIST_ENTRY(pf_frcache) fr_next; 1586 uint16_t fr_off; 1587 uint16_t fr_end; 1588}; 1589 1590struct pf_fragment { 1591 RB_ENTRY(pf_fragment) fr_entry; 1592 TAILQ_ENTRY(pf_fragment) frag_next; 1593 struct in_addr fr_src; 1594 struct in_addr fr_dst; 1595 u_int8_t fr_p; /* protocol of this fragment */ 1596 u_int8_t fr_flags; /* status flags */ 1597 u_int16_t fr_id; /* fragment id for reassemble */ 1598 u_int16_t fr_max; /* fragment data max */ 1599 u_int32_t fr_timeout; 1600#define fr_queue fr_u.fru_queue 1601#define fr_cache fr_u.fru_cache 1602 union { 1603 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1604 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1605 } fr_u; 1606}; 1607#endif /* (__FreeBSD__) */ 1608 1609#endif /* _KERNEL */ 1610 1611/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1612int pf_osfp_add(struct pf_osfp_ioctl *); 1613#ifdef _KERNEL 1614struct pf_osfp_enlist * 1615 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1616 const struct tcphdr *); 1617#endif /* _KERNEL */ 1618struct pf_osfp_enlist * 1619 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1620void pf_osfp_flush(void); 1621int pf_osfp_get(struct pf_osfp_ioctl *); 1622#ifdef __FreeBSD__ 1623int pf_osfp_initialize(void); 1624void pf_osfp_cleanup(void); 1625#else 1626void pf_osfp_initialize(void); 1627#endif 1628int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1629struct pf_os_fingerprint * 1630 pf_osfp_validate(void); 1631 1632 1633#endif /* _NET_PFVAR_H_ */ 1634