pf_altq.h revision 135920
1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 135920 2004-09-29 04:54:33Z 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#endif 53 54#include <netinet/tcp_fsm.h> 55 56struct ip; 57#ifdef __FreeBSD__ 58struct inpcb; 59#endif 60 61#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 62#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 63 64enum { PF_INOUT, PF_IN, PF_OUT }; 65enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 66enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 67 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 68enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 69 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 70enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 71 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 72enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 73enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 74 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 75 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 76/* 77 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 78 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 79 */ 80enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 81 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 82 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 83 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 84 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 85 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 86 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 87 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 88enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 89enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 90#define PF_POOL_IDMASK 0x0f 91enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 92 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 93enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 94 PF_ADDR_TABLE }; 95#define PF_POOL_TYPEMASK 0x0f 96#define PF_POOL_STICKYADDR 0x20 97#define PF_WSCALE_FLAG 0x80 98#define PF_WSCALE_MASK 0x0f 99 100struct pf_addr { 101 union { 102 struct in_addr v4; 103 struct in6_addr v6; 104 u_int8_t addr8[16]; 105 u_int16_t addr16[8]; 106 u_int32_t addr32[4]; 107 } pfa; /* 128-bit address */ 108#define v4 pfa.v4 109#define v6 pfa.v6 110#define addr8 pfa.addr8 111#define addr16 pfa.addr16 112#define addr32 pfa.addr32 113}; 114 115#define PF_TABLE_NAME_SIZE 32 116 117#define PFI_AFLAG_NETWORK 0x01 118#define PFI_AFLAG_BROADCAST 0x02 119#define PFI_AFLAG_PEER 0x04 120#define PFI_AFLAG_MODEMASK 0x07 121#define PFI_AFLAG_NOALIAS 0x08 122 123struct pf_addr_wrap { 124 union { 125 struct { 126 struct pf_addr addr; 127 struct pf_addr mask; 128 } a; 129 char ifname[IFNAMSIZ]; 130 char tblname[PF_TABLE_NAME_SIZE]; 131 } v; 132 union { 133 struct pfi_dynaddr *dyn; 134 struct pfr_ktable *tbl; 135 int dyncnt; 136 int tblcnt; 137 } p; 138 u_int8_t type; /* PF_ADDR_* */ 139 u_int8_t iflags; /* PFI_AFLAG_* */ 140}; 141 142#ifdef _KERNEL 143 144struct pfi_dynaddr { 145 struct pf_addr pfid_addr4; 146 struct pf_addr pfid_mask4; 147 struct pf_addr pfid_addr6; 148 struct pf_addr pfid_mask6; 149 struct pfr_ktable *pfid_kt; 150 struct pfi_kif *pfid_kif; 151 void *pfid_hook_cookie; 152 int pfid_net; /* optional mask, or 128 */ 153 int pfid_acnt4; /* address count, IPv4 */ 154 int pfid_acnt6; /* address count, IPv6 */ 155 sa_family_t pfid_af; /* rule address family */ 156 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 157}; 158 159/* 160 * Address manipulation macros 161 */ 162 163#ifdef __FreeBSD__ 164#define splsoftnet() splnet() 165 166#define HTONL(x) (x) = htonl((__uint32_t)(x)) 167#define HTONS(x) (x) = htons((__uint16_t)(x)) 168#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 169#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 170 171#define PF_NAME "pf" 172 173#define PR_NOWAIT M_NOWAIT 174#define pool_get(p, f) uma_zalloc(*(p), (f)) 175#define pool_put(p, o) uma_zfree(*(p), (o)) 176 177#define UMA_CREATE(var, type, desc) \ 178 var = uma_zcreate(desc, sizeof(type), \ 179 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 180 if (var == NULL) break 181#define UMA_DESTROY(var) \ 182 if(var) uma_zdestroy(var) 183 184extern struct mtx pf_task_mtx; 185 186#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h)) 187 188#define PF_LOCK() do { \ 189 PF_ASSERT(MA_NOTOWNED); \ 190 mtx_lock(&pf_task_mtx); \ 191} while(0) 192#define PF_UNLOCK() do { \ 193 PF_ASSERT(MA_OWNED); \ 194 mtx_unlock(&pf_task_mtx); \ 195} while(0) 196 197#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 198 PF_UNLOCK(); \ 199 r = copyin((uaddr), (kaddr), (len)); \ 200 PF_LOCK(); \ 201} while(0) 202 203#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 204 PF_UNLOCK(); \ 205 r = copyout((kaddr), (uaddr), (len)); \ 206 PF_LOCK(); \ 207} while(0) 208 209extern void init_pf_mutex(void); 210extern void destroy_pf_mutex(void); 211 212#define PF_MODVER 1 213#define PFLOG_MODVER 1 214#define PFSYNC_MODVER 1 215 216#define PFLOG_MINVER 1 217#define PFLOG_PREFVER PFLOG_MODVER 218#define PFLOG_MAXVER 1 219#define PFSYNC_MINVER 1 220#define PFSYNC_PREFVER PFSYNC_MODVER 221#define PFSYNC_MAXVER 1 222 223/* prototyped for pf_subr.c */ 224struct hook_desc { 225 TAILQ_ENTRY(hook_desc) hd_list; 226 void (*hd_fn)(void *); 227 void *hd_arg; 228}; 229TAILQ_HEAD(hook_desc_head, hook_desc); 230 231void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *); 232void hook_disestablish(struct hook_desc_head *, void *); 233void dohooks(struct hook_desc_head *, int); 234 235#define HOOK_REMOVE 0x01 236#define HOOK_FREE 0x02 237#endif /* __FreeBSD__ */ 238 239#ifdef INET 240#ifndef INET6 241#define PF_INET_ONLY 242#endif /* ! INET6 */ 243#endif /* INET */ 244 245#ifdef INET6 246#ifndef INET 247#define PF_INET6_ONLY 248#endif /* ! INET */ 249#endif /* INET6 */ 250 251#ifdef INET 252#ifdef INET6 253#define PF_INET_INET6 254#endif /* INET6 */ 255#endif /* INET */ 256 257#else 258 259#define PF_INET_INET6 260 261#endif /* _KERNEL */ 262 263/* Both IPv4 and IPv6 */ 264#ifdef PF_INET_INET6 265 266#define PF_AEQ(a, b, c) \ 267 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 268 ((a)->addr32[3] == (b)->addr32[3] && \ 269 (a)->addr32[2] == (b)->addr32[2] && \ 270 (a)->addr32[1] == (b)->addr32[1] && \ 271 (a)->addr32[0] == (b)->addr32[0])) \ 272 273#define PF_ANEQ(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_AZERO(a, c) \ 281 ((c == AF_INET && !(a)->addr32[0]) || \ 282 (!(a)->addr32[0] && !(a)->addr32[1] && \ 283 !(a)->addr32[2] && !(a)->addr32[3] )) \ 284 285#define PF_MATCHA(n, a, m, b, f) \ 286 pf_match_addr(n, a, m, b, f) 287 288#define PF_ACPY(a, b, f) \ 289 pf_addrcpy(a, b, f) 290 291#define PF_AINC(a, f) \ 292 pf_addr_inc(a, f) 293 294#define PF_POOLMASK(a, b, c, d, f) \ 295 pf_poolmask(a, b, c, d, f) 296 297#else 298 299/* Just IPv6 */ 300 301#ifdef PF_INET6_ONLY 302 303#define PF_AEQ(a, b, c) \ 304 ((a)->addr32[3] == (b)->addr32[3] && \ 305 (a)->addr32[2] == (b)->addr32[2] && \ 306 (a)->addr32[1] == (b)->addr32[1] && \ 307 (a)->addr32[0] == (b)->addr32[0]) \ 308 309#define PF_ANEQ(a, b, c) \ 310 ((a)->addr32[3] != (b)->addr32[3] || \ 311 (a)->addr32[2] != (b)->addr32[2] || \ 312 (a)->addr32[1] != (b)->addr32[1] || \ 313 (a)->addr32[0] != (b)->addr32[0]) \ 314 315#define PF_AZERO(a, c) \ 316 (!(a)->addr32[0] && \ 317 !(a)->addr32[1] && \ 318 !(a)->addr32[2] && \ 319 !(a)->addr32[3] ) \ 320 321#define PF_MATCHA(n, a, m, b, f) \ 322 pf_match_addr(n, a, m, b, f) 323 324#define PF_ACPY(a, b, f) \ 325 pf_addrcpy(a, b, f) 326 327#define PF_AINC(a, f) \ 328 pf_addr_inc(a, f) 329 330#define PF_POOLMASK(a, b, c, d, f) \ 331 pf_poolmask(a, b, c, d, f) 332 333#else 334 335/* Just IPv4 */ 336#ifdef PF_INET_ONLY 337 338#define PF_AEQ(a, b, c) \ 339 ((a)->addr32[0] == (b)->addr32[0]) 340 341#define PF_ANEQ(a, b, c) \ 342 ((a)->addr32[0] != (b)->addr32[0]) 343 344#define PF_AZERO(a, c) \ 345 (!(a)->addr32[0]) 346 347#define PF_MATCHA(n, a, m, b, f) \ 348 pf_match_addr(n, a, m, b, f) 349 350#define PF_ACPY(a, b, f) \ 351 (a)->v4.s_addr = (b)->v4.s_addr 352 353#define PF_AINC(a, f) \ 354 do { \ 355 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 356 } while (0) 357 358#define PF_POOLMASK(a, b, c, d, f) \ 359 do { \ 360 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 361 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 362 } while (0) 363 364#endif /* PF_INET_ONLY */ 365#endif /* PF_INET6_ONLY */ 366#endif /* PF_INET_INET6 */ 367 368#define PF_MISMATCHAW(aw, x, af, not) \ 369 ( \ 370 (((aw)->type == PF_ADDR_NOROUTE && \ 371 pf_routable((x), (af))) || \ 372 ((aw)->type == PF_ADDR_TABLE && \ 373 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 374 ((aw)->type == PF_ADDR_DYNIFTL && \ 375 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 376 ((aw)->type == PF_ADDR_ADDRMASK && \ 377 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 378 !PF_MATCHA(0, &(aw)->v.a.addr, \ 379 &(aw)->v.a.mask, (x), (af)))) != \ 380 (not) \ 381 ) 382 383struct pf_rule_uid { 384 uid_t uid[2]; 385 u_int8_t op; 386}; 387 388struct pf_rule_gid { 389 uid_t gid[2]; 390 u_int8_t op; 391}; 392 393struct pf_rule_addr { 394 struct pf_addr_wrap addr; 395 u_int16_t port[2]; 396 u_int8_t not; 397 u_int8_t port_op; 398}; 399 400struct pf_pooladdr { 401 struct pf_addr_wrap addr; 402 TAILQ_ENTRY(pf_pooladdr) entries; 403 char ifname[IFNAMSIZ]; 404 struct pfi_kif *kif; 405}; 406 407TAILQ_HEAD(pf_palist, pf_pooladdr); 408 409struct pf_poolhashkey { 410 union { 411 u_int8_t key8[16]; 412 u_int16_t key16[8]; 413 u_int32_t key32[4]; 414 } pfk; /* 128-bit hash key */ 415#define key8 pfk.key8 416#define key16 pfk.key16 417#define key32 pfk.key32 418}; 419 420struct pf_pool { 421 struct pf_palist list; 422 struct pf_pooladdr *cur; 423 struct pf_poolhashkey key; 424 struct pf_addr counter; 425 int tblidx; 426 u_int16_t proxy_port[2]; 427 u_int8_t port_op; 428 u_int8_t opts; 429}; 430 431 432/* A packed Operating System description for fingerprinting */ 433typedef u_int32_t pf_osfp_t; 434#define PF_OSFP_ANY ((pf_osfp_t)0) 435#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 436#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 437 438struct pf_osfp_entry { 439 SLIST_ENTRY(pf_osfp_entry) fp_entry; 440 pf_osfp_t fp_os; 441 int fp_enflags; 442#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 443#define PF_OSFP_GENERIC 0x002 /* generic signature */ 444#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 445#define PF_OSFP_LEN 32 446 char fp_class_nm[PF_OSFP_LEN]; 447 char fp_version_nm[PF_OSFP_LEN]; 448 char fp_subtype_nm[PF_OSFP_LEN]; 449}; 450#define PF_OSFP_ENTRY_EQ(a, b) \ 451 ((a)->fp_os == (b)->fp_os && \ 452 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 453 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 454 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 455 456/* handle pf_osfp_t packing */ 457#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 458#define _FP_UNUSED_BITS 1 459#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 460#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 461#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 462#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 463 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 464 ((1 << _FP_CLASS_BITS) - 1); \ 465 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 466 ((1 << _FP_VERSION_BITS) - 1);\ 467 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 468} while(0) 469#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 470 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 471 + _FP_SUBTYPE_BITS); \ 472 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 473 _FP_SUBTYPE_BITS; \ 474 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 475} while(0) 476 477/* the fingerprint of an OSes TCP SYN packet */ 478typedef u_int64_t pf_tcpopts_t; 479struct pf_os_fingerprint { 480 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 481 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 482 u_int16_t fp_wsize; /* TCP window size */ 483 u_int16_t fp_psize; /* ip->ip_len */ 484 u_int16_t fp_mss; /* TCP MSS */ 485 u_int16_t fp_flags; 486#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 487#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 488#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 489#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 490#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 491#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 492#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 493#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 494#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 495#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 496#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 497#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 498#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 499#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 500 u_int8_t fp_optcnt; /* TCP option count */ 501 u_int8_t fp_wscale; /* TCP window scaling */ 502 u_int8_t fp_ttl; /* IPv4 TTL */ 503#define PF_OSFP_MAXTTL_OFFSET 40 504/* TCP options packing */ 505#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 506#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 507#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 508#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 509#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 510#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 511#define PF_OSFP_MAX_OPTS \ 512 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 513 / PF_OSFP_TCPOPT_BITS 514 515 SLIST_ENTRY(pf_os_fingerprint) fp_next; 516}; 517 518struct pf_osfp_ioctl { 519 struct pf_osfp_entry fp_os; 520 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 521 u_int16_t fp_wsize; /* TCP window size */ 522 u_int16_t fp_psize; /* ip->ip_len */ 523 u_int16_t fp_mss; /* TCP MSS */ 524 u_int16_t fp_flags; 525 u_int8_t fp_optcnt; /* TCP option count */ 526 u_int8_t fp_wscale; /* TCP window scaling */ 527 u_int8_t fp_ttl; /* IPv4 TTL */ 528 529 int fp_getnum; /* DIOCOSFPGET number */ 530}; 531 532 533union pf_rule_ptr { 534 struct pf_rule *ptr; 535 u_int32_t nr; 536}; 537 538struct pf_rule { 539 struct pf_rule_addr src; 540 struct pf_rule_addr dst; 541#define PF_SKIP_IFP 0 542#define PF_SKIP_DIR 1 543#define PF_SKIP_AF 2 544#define PF_SKIP_PROTO 3 545#define PF_SKIP_SRC_ADDR 4 546#define PF_SKIP_SRC_PORT 5 547#define PF_SKIP_DST_ADDR 6 548#define PF_SKIP_DST_PORT 7 549#define PF_SKIP_COUNT 8 550 union pf_rule_ptr skip[PF_SKIP_COUNT]; 551#define PF_RULE_LABEL_SIZE 64 552 char label[PF_RULE_LABEL_SIZE]; 553#define PF_QNAME_SIZE 16 554 char ifname[IFNAMSIZ]; 555 char qname[PF_QNAME_SIZE]; 556 char pqname[PF_QNAME_SIZE]; 557#define PF_ANCHOR_NAME_SIZE 16 558 char anchorname[PF_ANCHOR_NAME_SIZE]; 559#define PF_TAG_NAME_SIZE 16 560 char tagname[PF_TAG_NAME_SIZE]; 561 char match_tagname[PF_TAG_NAME_SIZE]; 562 563 TAILQ_ENTRY(pf_rule) entries; 564 struct pf_pool rpool; 565 566 u_int64_t evaluations; 567 u_int64_t packets; 568 u_int64_t bytes; 569 570 struct pfi_kif *kif; 571 struct pf_anchor *anchor; 572 573 pf_osfp_t os_fingerprint; 574 575 u_int32_t timeout[PFTM_MAX]; 576 u_int32_t states; 577 u_int32_t max_states; 578 u_int32_t src_nodes; 579 u_int32_t max_src_nodes; 580 u_int32_t max_src_states; 581 u_int32_t qid; 582 u_int32_t pqid; 583 u_int32_t rt_listid; 584 u_int32_t nr; 585 586 u_int16_t return_icmp; 587 u_int16_t return_icmp6; 588 u_int16_t max_mss; 589 u_int16_t tag; 590 u_int16_t match_tag; 591 592 struct pf_rule_uid uid; 593 struct pf_rule_gid gid; 594 595 u_int32_t rule_flag; 596 u_int8_t action; 597 u_int8_t direction; 598 u_int8_t log; 599 u_int8_t quick; 600 u_int8_t ifnot; 601 u_int8_t match_tag_not; 602 u_int8_t natpass; 603 604#define PF_STATE_NORMAL 0x1 605#define PF_STATE_MODULATE 0x2 606#define PF_STATE_SYNPROXY 0x3 607 u_int8_t keep_state; 608 sa_family_t af; 609 u_int8_t proto; 610 u_int8_t type; 611 u_int8_t code; 612 u_int8_t flags; 613 u_int8_t flagset; 614 u_int8_t min_ttl; 615 u_int8_t allow_opts; 616 u_int8_t rt; 617 u_int8_t return_ttl; 618 u_int8_t tos; 619}; 620 621/* rule flags */ 622#define PFRULE_DROP 0x0000 623#define PFRULE_RETURNRST 0x0001 624#define PFRULE_FRAGMENT 0x0002 625#define PFRULE_RETURNICMP 0x0004 626#define PFRULE_RETURN 0x0008 627#define PFRULE_NOSYNC 0x0010 628#define PFRULE_SRCTRACK 0x0020 /* track source states */ 629#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 630 631/* scrub flags */ 632#define PFRULE_NODF 0x0100 633#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 634#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 635#define PFRULE_RANDOMID 0x0800 636#define PFRULE_REASSEMBLE_TCP 0x1000 637 638/* rule flags again */ 639#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 640#define PFRULE_GRBOUND 0x00020000 /* group-bound */ 641 642#define PFSTATE_HIWAT 10000 /* default state table size */ 643 644struct pf_src_node { 645 RB_ENTRY(pf_src_node) entry; 646 struct pf_addr addr; 647 struct pf_addr raddr; 648 union pf_rule_ptr rule; 649 struct pfi_kif *kif; 650 u_int32_t bytes; 651 u_int32_t packets; 652 u_int32_t states; 653 u_int32_t creation; 654 u_int32_t expire; 655 sa_family_t af; 656 u_int8_t ruletype; 657}; 658 659#define PFSNODE_HIWAT 10000 /* default source node table size */ 660 661struct pf_state_scrub { 662 u_int16_t pfss_flags; 663#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 664 u_int8_t pfss_ttl; /* stashed TTL */ 665 u_int8_t pad; 666 u_int32_t pfss_ts_mod; /* timestamp modulation */ 667}; 668 669struct pf_state_host { 670 struct pf_addr addr; 671 u_int16_t port; 672 u_int16_t pad; 673}; 674 675struct pf_state_peer { 676 u_int32_t seqlo; /* Max sequence number sent */ 677 u_int32_t seqhi; /* Max the other end ACKd + win */ 678 u_int32_t seqdiff; /* Sequence number modulator */ 679 u_int16_t max_win; /* largest window (pre scaling) */ 680 u_int8_t state; /* active state level */ 681 u_int8_t wscale; /* window scaling factor */ 682 u_int16_t mss; /* Maximum segment size option */ 683 struct pf_state_scrub *scrub; /* state is scrubbed */ 684}; 685 686TAILQ_HEAD(pf_state_queue, pf_state); 687 688struct pf_state { 689 u_int64_t id; 690 union { 691 struct { 692 RB_ENTRY(pf_state) entry_lan_ext; 693 RB_ENTRY(pf_state) entry_ext_gwy; 694 RB_ENTRY(pf_state) entry_id; 695 TAILQ_ENTRY(pf_state) entry_updates; 696 struct pfi_kif *kif; 697 } s; 698 char ifname[IFNAMSIZ]; 699 } u; 700 struct pf_state_host lan; 701 struct pf_state_host gwy; 702 struct pf_state_host ext; 703 struct pf_state_peer src; 704 struct pf_state_peer dst; 705 union pf_rule_ptr rule; 706 union pf_rule_ptr anchor; 707 union pf_rule_ptr nat_rule; 708 struct pf_addr rt_addr; 709 struct pfi_kif *rt_kif; 710 struct pf_src_node *src_node; 711 struct pf_src_node *nat_src_node; 712 u_int32_t creation; 713 u_int32_t expire; 714 u_int32_t pfsync_time; 715 u_int32_t packets[2]; 716 u_int32_t bytes[2]; 717 u_int32_t creatorid; 718 sa_family_t af; 719 u_int8_t proto; 720 u_int8_t direction; 721 u_int8_t log; 722 u_int8_t allow_opts; 723 u_int8_t timeout; 724 u_int8_t sync_flags; 725#define PFSTATE_NOSYNC 0x01 726#define PFSTATE_FROMSYNC 0x02 727 u_int8_t pad; 728}; 729 730TAILQ_HEAD(pf_rulequeue, pf_rule); 731 732struct pf_anchor; 733 734struct pf_ruleset { 735 TAILQ_ENTRY(pf_ruleset) entries; 736#define PF_RULESET_NAME_SIZE 16 737 char name[PF_RULESET_NAME_SIZE]; 738 struct { 739 struct pf_rulequeue queues[2]; 740 struct { 741 struct pf_rulequeue *ptr; 742 u_int32_t ticket; 743 int open; 744 } active, inactive; 745 } rules[PF_RULESET_MAX]; 746 struct pf_anchor *anchor; 747 u_int32_t tticket; 748 int tables; 749 int topen; 750}; 751 752TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 753 754struct pf_anchor { 755 TAILQ_ENTRY(pf_anchor) entries; 756 char name[PF_ANCHOR_NAME_SIZE]; 757 struct pf_rulesetqueue rulesets; 758 int tables; 759}; 760 761TAILQ_HEAD(pf_anchorqueue, pf_anchor); 762 763#define PF_RESERVED_ANCHOR "_pf" 764#define PF_INTERFACE_RULESET "_if" 765 766#define PFR_TFLAG_PERSIST 0x00000001 767#define PFR_TFLAG_CONST 0x00000002 768#define PFR_TFLAG_ACTIVE 0x00000004 769#define PFR_TFLAG_INACTIVE 0x00000008 770#define PFR_TFLAG_REFERENCED 0x00000010 771#define PFR_TFLAG_REFDANCHOR 0x00000020 772#define PFR_TFLAG_USRMASK 0x00000003 773#define PFR_TFLAG_SETMASK 0x0000003C 774#define PFR_TFLAG_ALLMASK 0x0000003F 775 776struct pfr_table { 777 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 778 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 779 char pfrt_name[PF_TABLE_NAME_SIZE]; 780 u_int32_t pfrt_flags; 781 u_int8_t pfrt_fback; 782}; 783 784enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 785 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 786 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 787 788struct pfr_addr { 789 union { 790 struct in_addr _pfra_ip4addr; 791 struct in6_addr _pfra_ip6addr; 792 } pfra_u; 793 u_int8_t pfra_af; 794 u_int8_t pfra_net; 795 u_int8_t pfra_not; 796 u_int8_t pfra_fback; 797}; 798#define pfra_ip4addr pfra_u._pfra_ip4addr 799#define pfra_ip6addr pfra_u._pfra_ip6addr 800 801enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 802enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 803#define PFR_OP_XPASS PFR_OP_ADDR_MAX 804 805struct pfr_astats { 806 struct pfr_addr pfras_a; 807 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 808 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 809 long pfras_tzero; 810}; 811 812enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 813 814struct pfr_tstats { 815 struct pfr_table pfrts_t; 816 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 817 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 818 u_int64_t pfrts_match; 819 u_int64_t pfrts_nomatch; 820 long pfrts_tzero; 821 int pfrts_cnt; 822 int pfrts_refcnt[PFR_REFCNT_MAX]; 823}; 824#define pfrts_name pfrts_t.pfrt_name 825#define pfrts_flags pfrts_t.pfrt_flags 826 827#ifndef _SOCKADDR_UNION_DEFINED 828#define _SOCKADDR_UNION_DEFINED 829union sockaddr_union { 830 struct sockaddr sa; 831 struct sockaddr_in sin; 832 struct sockaddr_in6 sin6; 833}; 834#endif /* _SOCKADDR_UNION_DEFINED */ 835 836SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 837struct pfr_kentry { 838 struct radix_node pfrke_node[2]; 839 union sockaddr_union pfrke_sa; 840 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 841 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 842 SLIST_ENTRY(pfr_kentry) pfrke_workq; 843 long pfrke_tzero; 844 u_int8_t pfrke_af; 845 u_int8_t pfrke_net; 846 u_int8_t pfrke_not; 847 u_int8_t pfrke_mark; 848}; 849 850SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 851RB_HEAD(pfr_ktablehead, pfr_ktable); 852struct pfr_ktable { 853 struct pfr_tstats pfrkt_ts; 854 RB_ENTRY(pfr_ktable) pfrkt_tree; 855 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 856 struct radix_node_head *pfrkt_ip4; 857 struct radix_node_head *pfrkt_ip6; 858 struct pfr_ktable *pfrkt_shadow; 859 struct pfr_ktable *pfrkt_root; 860 struct pf_ruleset *pfrkt_rs; 861 long pfrkt_larg; 862 int pfrkt_nflags; 863}; 864#define pfrkt_t pfrkt_ts.pfrts_t 865#define pfrkt_name pfrkt_t.pfrt_name 866#define pfrkt_anchor pfrkt_t.pfrt_anchor 867#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 868#define pfrkt_flags pfrkt_t.pfrt_flags 869#define pfrkt_cnt pfrkt_ts.pfrts_cnt 870#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 871#define pfrkt_packets pfrkt_ts.pfrts_packets 872#define pfrkt_bytes pfrkt_ts.pfrts_bytes 873#define pfrkt_match pfrkt_ts.pfrts_match 874#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 875#define pfrkt_tzero pfrkt_ts.pfrts_tzero 876 877RB_HEAD(pf_state_tree_lan_ext, pf_state); 878RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 879 u.s.entry_lan_ext, pf_state_compare_lan_ext); 880 881RB_HEAD(pf_state_tree_ext_gwy, pf_state); 882RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 883 u.s.entry_ext_gwy, pf_state_compare_ext_gwy); 884 885struct pfi_if { 886 char pfif_name[IFNAMSIZ]; 887 u_int64_t pfif_packets[2][2][2]; 888 u_int64_t pfif_bytes[2][2][2]; 889 u_int64_t pfif_addcnt; 890 u_int64_t pfif_delcnt; 891 long pfif_tzero; 892 int pfif_states; 893 int pfif_rules; 894 int pfif_flags; 895}; 896 897TAILQ_HEAD(pfi_grouphead, pfi_kif); 898TAILQ_HEAD(pfi_statehead, pfi_kif); 899RB_HEAD(pfi_ifhead, pfi_kif); 900struct pfi_kif { 901 struct pfi_if pfik_if; 902 RB_ENTRY(pfi_kif) pfik_tree; 903 struct pf_state_tree_lan_ext pfik_lan_ext; 904 struct pf_state_tree_ext_gwy pfik_ext_gwy; 905 struct pfi_grouphead pfik_grouphead; 906 TAILQ_ENTRY(pfi_kif) pfik_instances; 907 TAILQ_ENTRY(pfi_kif) pfik_w_states; 908 struct hook_desc_head *pfik_ah_head; 909 void *pfik_ah_cookie; 910 struct pfi_kif *pfik_parent; 911 struct ifnet *pfik_ifp; 912 int pfik_states; 913 int pfik_rules; 914}; 915#define pfik_name pfik_if.pfif_name 916#define pfik_packets pfik_if.pfif_packets 917#define pfik_bytes pfik_if.pfif_bytes 918#define pfik_tzero pfik_if.pfif_tzero 919#define pfik_flags pfik_if.pfif_flags 920#define pfik_addcnt pfik_if.pfif_addcnt 921#define pfik_delcnt pfik_if.pfif_delcnt 922#define pfik_states pfik_if.pfif_states 923#define pfik_rules pfik_if.pfif_rules 924 925#define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 926#define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 927#define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 928#define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 929#define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 930#define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */ 931 932struct pf_pdesc { 933 u_int64_t tot_len; /* Make Mickey money */ 934 union { 935 struct tcphdr *tcp; 936 struct udphdr *udp; 937 struct icmp *icmp; 938#ifdef INET6 939 struct icmp6_hdr *icmp6; 940#endif /* INET6 */ 941 void *any; 942 } hdr; 943 struct pf_addr baddr; /* address before translation */ 944 struct pf_addr naddr; /* address after translation */ 945 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 946 struct pf_addr *src; 947 struct pf_addr *dst; 948 u_int16_t *ip_sum; 949 u_int32_t p_len; /* total length of payload */ 950 u_int16_t flags; /* Let SCRUB trigger behavior in 951 * state code. Easier than tags */ 952#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 953 sa_family_t af; 954 u_int8_t proto; 955 u_int8_t tos; 956}; 957 958/* flags for RDR options */ 959#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 960#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 961 962/* Reasons code for passing/dropping a packet */ 963#define PFRES_MATCH 0 /* Explicit match of a rule */ 964#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 965#define PFRES_FRAG 2 /* Dropping following fragment */ 966#define PFRES_SHORT 3 /* Dropping short packet */ 967#define PFRES_NORM 4 /* Dropping by normalizer */ 968#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 969#define PFRES_MAX 6 /* total+1 */ 970 971#define PFRES_NAMES { \ 972 "match", \ 973 "bad-offset", \ 974 "fragment", \ 975 "short", \ 976 "normalize", \ 977 "memory", \ 978 NULL \ 979} 980 981/* UDP state enumeration */ 982#define PFUDPS_NO_TRAFFIC 0 983#define PFUDPS_SINGLE 1 984#define PFUDPS_MULTIPLE 2 985 986#define PFUDPS_NSTATES 3 /* number of state levels */ 987 988#define PFUDPS_NAMES { \ 989 "NO_TRAFFIC", \ 990 "SINGLE", \ 991 "MULTIPLE", \ 992 NULL \ 993} 994 995/* Other protocol state enumeration */ 996#define PFOTHERS_NO_TRAFFIC 0 997#define PFOTHERS_SINGLE 1 998#define PFOTHERS_MULTIPLE 2 999 1000#define PFOTHERS_NSTATES 3 /* number of state levels */ 1001 1002#define PFOTHERS_NAMES { \ 1003 "NO_TRAFFIC", \ 1004 "SINGLE", \ 1005 "MULTIPLE", \ 1006 NULL \ 1007} 1008 1009#define FCNT_STATE_SEARCH 0 1010#define FCNT_STATE_INSERT 1 1011#define FCNT_STATE_REMOVALS 2 1012#define FCNT_MAX 3 1013 1014#define SCNT_SRC_NODE_SEARCH 0 1015#define SCNT_SRC_NODE_INSERT 1 1016#define SCNT_SRC_NODE_REMOVALS 2 1017#define SCNT_MAX 3 1018 1019#define ACTION_SET(a, x) \ 1020 do { \ 1021 if ((a) != NULL) \ 1022 *(a) = (x); \ 1023 } while (0) 1024 1025#define REASON_SET(a, x) \ 1026 do { \ 1027 if ((a) != NULL) \ 1028 *(a) = (x); \ 1029 if (x < PFRES_MAX) \ 1030 pf_status.counters[x]++; \ 1031 } while (0) 1032 1033struct pf_status { 1034 u_int64_t counters[PFRES_MAX]; 1035 u_int64_t fcounters[FCNT_MAX]; 1036 u_int64_t scounters[SCNT_MAX]; 1037 u_int64_t pcounters[2][2][3]; 1038 u_int64_t bcounters[2][2]; 1039 u_int64_t stateid; 1040 u_int32_t running; 1041 u_int32_t states; 1042 u_int32_t src_nodes; 1043 u_int32_t since; 1044 u_int32_t debug; 1045 u_int32_t hostid; 1046 char ifname[IFNAMSIZ]; 1047}; 1048 1049struct cbq_opts { 1050 u_int minburst; 1051 u_int maxburst; 1052 u_int pktsize; 1053 u_int maxpktsize; 1054 u_int ns_per_byte; 1055 u_int maxidle; 1056 int minidle; 1057 u_int offtime; 1058 int flags; 1059}; 1060 1061struct priq_opts { 1062 int flags; 1063}; 1064 1065struct hfsc_opts { 1066 /* real-time service curve */ 1067 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1068 u_int rtsc_d; /* the x-projection of m1 in msec */ 1069 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1070 /* link-sharing service curve */ 1071 u_int lssc_m1; 1072 u_int lssc_d; 1073 u_int lssc_m2; 1074 /* upper-limit service curve */ 1075 u_int ulsc_m1; 1076 u_int ulsc_d; 1077 u_int ulsc_m2; 1078 int flags; 1079}; 1080 1081struct pf_altq { 1082 char ifname[IFNAMSIZ]; 1083 1084 void *altq_disc; /* discipline-specific state */ 1085 TAILQ_ENTRY(pf_altq) entries; 1086 1087 /* scheduler spec */ 1088 u_int8_t scheduler; /* scheduler type */ 1089 u_int16_t tbrsize; /* tokenbucket regulator size */ 1090 u_int32_t ifbandwidth; /* interface bandwidth */ 1091 1092 /* queue spec */ 1093 char qname[PF_QNAME_SIZE]; /* queue name */ 1094 char parent[PF_QNAME_SIZE]; /* parent name */ 1095 u_int32_t parent_qid; /* parent queue id */ 1096 u_int32_t bandwidth; /* queue bandwidth */ 1097 u_int8_t priority; /* priority */ 1098 u_int16_t qlimit; /* queue size limit */ 1099 u_int16_t flags; /* misc flags */ 1100 union { 1101 struct cbq_opts cbq_opts; 1102 struct priq_opts priq_opts; 1103 struct hfsc_opts hfsc_opts; 1104 } pq_u; 1105 1106 u_int32_t qid; /* return value */ 1107}; 1108 1109struct pf_tag { 1110 u_int16_t tag; /* tag id */ 1111}; 1112 1113struct pf_tagname { 1114 TAILQ_ENTRY(pf_tagname) entries; 1115 char name[PF_TAG_NAME_SIZE]; 1116 u_int16_t tag; 1117 int ref; 1118}; 1119 1120#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1121#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1122#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1123#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1124 1125/* 1126 * ioctl parameter structures 1127 */ 1128 1129struct pfioc_pooladdr { 1130 u_int32_t action; 1131 u_int32_t ticket; 1132 u_int32_t nr; 1133 u_int32_t r_num; 1134 u_int8_t r_action; 1135 u_int8_t r_last; 1136 u_int8_t af; 1137 char anchor[PF_ANCHOR_NAME_SIZE]; 1138 char ruleset[PF_RULESET_NAME_SIZE]; 1139 struct pf_pooladdr addr; 1140}; 1141 1142struct pfioc_rule { 1143 u_int32_t action; 1144 u_int32_t ticket; 1145 u_int32_t pool_ticket; 1146 u_int32_t nr; 1147 char anchor[PF_ANCHOR_NAME_SIZE]; 1148 char ruleset[PF_RULESET_NAME_SIZE]; 1149 struct pf_rule rule; 1150}; 1151 1152struct pfioc_natlook { 1153 struct pf_addr saddr; 1154 struct pf_addr daddr; 1155 struct pf_addr rsaddr; 1156 struct pf_addr rdaddr; 1157 u_int16_t sport; 1158 u_int16_t dport; 1159 u_int16_t rsport; 1160 u_int16_t rdport; 1161 sa_family_t af; 1162 u_int8_t proto; 1163 u_int8_t direction; 1164}; 1165 1166struct pfioc_state { 1167 u_int32_t nr; 1168 struct pf_state state; 1169}; 1170 1171struct pfioc_state_kill { 1172 /* XXX returns the number of states killed in psk_af */ 1173 sa_family_t psk_af; 1174 int psk_proto; 1175 struct pf_rule_addr psk_src; 1176 struct pf_rule_addr psk_dst; 1177 char psk_ifname[IFNAMSIZ]; 1178}; 1179 1180struct pfioc_states { 1181 int ps_len; 1182 union { 1183 caddr_t psu_buf; 1184 struct pf_state *psu_states; 1185 } ps_u; 1186#define ps_buf ps_u.psu_buf 1187#define ps_states ps_u.psu_states 1188}; 1189 1190struct pfioc_src_nodes { 1191 int psn_len; 1192 union { 1193 caddr_t psu_buf; 1194 struct pf_src_node *psu_src_nodes; 1195 } psn_u; 1196#define psn_buf psn_u.psu_buf 1197#define psn_src_nodes psn_u.psu_src_nodes 1198}; 1199 1200struct pfioc_if { 1201 char ifname[IFNAMSIZ]; 1202}; 1203 1204struct pfioc_tm { 1205 int timeout; 1206 int seconds; 1207}; 1208 1209struct pfioc_limit { 1210 int index; 1211 unsigned limit; 1212}; 1213 1214struct pfioc_altq { 1215 u_int32_t action; 1216 u_int32_t ticket; 1217 u_int32_t nr; 1218 struct pf_altq altq; 1219}; 1220 1221struct pfioc_qstats { 1222 u_int32_t ticket; 1223 u_int32_t nr; 1224 void *buf; 1225 int nbytes; 1226 u_int8_t scheduler; 1227}; 1228 1229struct pfioc_anchor { 1230 u_int32_t nr; 1231 char name[PF_ANCHOR_NAME_SIZE]; 1232}; 1233 1234struct pfioc_ruleset { 1235 u_int32_t nr; 1236 char anchor[PF_ANCHOR_NAME_SIZE]; 1237 char name[PF_RULESET_NAME_SIZE]; 1238}; 1239 1240#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1241#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1242struct pfioc_trans { 1243 int size; /* number of elements */ 1244 int esize; /* size of each element in bytes */ 1245 struct pfioc_trans_e { 1246 int rs_num; 1247 char anchor[PF_ANCHOR_NAME_SIZE]; 1248 char ruleset[PF_RULESET_NAME_SIZE]; 1249 u_int32_t ticket; 1250 } *array; 1251}; 1252 1253#define PFR_FLAG_ATOMIC 0x00000001 1254#define PFR_FLAG_DUMMY 0x00000002 1255#define PFR_FLAG_FEEDBACK 0x00000004 1256#define PFR_FLAG_CLSTATS 0x00000008 1257#define PFR_FLAG_ADDRSTOO 0x00000010 1258#define PFR_FLAG_REPLACE 0x00000020 1259#define PFR_FLAG_ALLRSETS 0x00000040 1260#define PFR_FLAG_ALLMASK 0x0000007F 1261#ifdef _KERNEL 1262#define PFR_FLAG_USERIOCTL 0x10000000 1263#endif 1264 1265struct pfioc_table { 1266 struct pfr_table pfrio_table; 1267 void *pfrio_buffer; 1268 int pfrio_esize; 1269 int pfrio_size; 1270 int pfrio_size2; 1271 int pfrio_nadd; 1272 int pfrio_ndel; 1273 int pfrio_nchange; 1274 int pfrio_flags; 1275 u_int32_t pfrio_ticket; 1276}; 1277#define pfrio_exists pfrio_nadd 1278#define pfrio_nzero pfrio_nadd 1279#define pfrio_nmatch pfrio_nadd 1280#define pfrio_naddr pfrio_size2 1281#define pfrio_setflag pfrio_size2 1282#define pfrio_clrflag pfrio_nadd 1283 1284 1285#define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1286#define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1287#define PFI_FLAG_ALLMASK 0x0003 1288 1289struct pfioc_iface { 1290 char pfiio_name[IFNAMSIZ]; 1291 void *pfiio_buffer; 1292 int pfiio_esize; 1293 int pfiio_size; 1294 int pfiio_nzero; 1295 int pfiio_flags; 1296}; 1297 1298 1299/* 1300 * ioctl operations 1301 */ 1302 1303#define DIOCSTART _IO ('D', 1) 1304#define DIOCSTOP _IO ('D', 2) 1305#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1306#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1307#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1308#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1309#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1310/* XXX cut 8 - 17 */ 1311#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1312#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1313#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1314#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1315#define DIOCCLRSTATUS _IO ('D', 22) 1316#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1317#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1318#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1319#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1320/* XXX cut 26 - 28 */ 1321#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1322#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1323#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1324#define DIOCCLRRULECTRS _IO ('D', 38) 1325#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1326#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1327#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1328#define DIOCSTARTALTQ _IO ('D', 42) 1329#define DIOCSTOPALTQ _IO ('D', 43) 1330#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1331#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1332#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1333#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1334#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1335#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1336#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1337#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1338#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1339#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1340#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1341#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1342#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1343#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1344#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1345#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1346#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1347#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1348#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1349#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1350#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1351#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1352#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1353#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1354#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1355#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1356#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1357#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1358#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1359#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1360#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1361#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1362#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1363#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1364#define DIOCOSFPFLUSH _IO('D', 78) 1365#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1366#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1367#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1368#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1369#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1370#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1371#define DIOCCLRSRCNODES _IO('D', 85) 1372#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1373#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1374#define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1375#ifdef __FreeBSD__ 1376struct pf_ifspeed { 1377 char ifname[IFNAMSIZ]; 1378 u_int32_t baudrate; 1379}; 1380#define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed) 1381#endif 1382 1383#ifdef _KERNEL 1384RB_HEAD(pf_src_tree, pf_src_node); 1385RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1386extern struct pf_src_tree tree_src_tracking; 1387 1388RB_HEAD(pf_state_tree_id, pf_state); 1389RB_PROTOTYPE(pf_state_tree_id, pf_state, 1390 entry_id, pf_state_compare_id); 1391extern struct pf_state_tree_id tree_id; 1392extern struct pf_state_queue state_updates; 1393 1394extern struct pf_anchorqueue pf_anchors; 1395extern struct pf_ruleset pf_main_ruleset; 1396TAILQ_HEAD(pf_poolqueue, pf_pool); 1397extern struct pf_poolqueue pf_pools[2]; 1398TAILQ_HEAD(pf_altqqueue, pf_altq); 1399extern struct pf_altqqueue pf_altqs[2]; 1400extern struct pf_palist pf_pabuf; 1401extern struct pfi_kif **pfi_index2kif; 1402 1403extern u_int32_t ticket_altqs_active; 1404extern u_int32_t ticket_altqs_inactive; 1405extern int altqs_inactive_open; 1406extern u_int32_t ticket_pabuf; 1407extern struct pf_altqqueue *pf_altqs_active; 1408extern struct pf_altqqueue *pf_altqs_inactive; 1409extern struct pf_poolqueue *pf_pools_active; 1410extern struct pf_poolqueue *pf_pools_inactive; 1411extern int pf_tbladdr_setup(struct pf_ruleset *, 1412 struct pf_addr_wrap *); 1413extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1414extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1415extern void pf_calc_skip_steps(struct pf_rulequeue *); 1416extern void pf_update_anchor_rules(void); 1417#ifdef __FreeBSD__ 1418extern uma_zone_t pf_src_tree_pl, pf_rule_pl; 1419extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1420extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl; 1421extern uma_zone_t pf_cache_pl, pf_cent_pl; 1422extern uma_zone_t pf_state_scrub_pl; 1423extern uma_zone_t pfi_addr_pl; 1424#else 1425extern struct pool pf_src_tree_pl, pf_rule_pl; 1426extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1427extern struct pool pf_state_scrub_pl; 1428#endif 1429extern void pf_purge_timeout(void *); 1430extern void pf_purge_expired_src_nodes(void); 1431extern void pf_purge_expired_states(void); 1432extern int pf_insert_state(struct pfi_kif *, 1433 struct pf_state *); 1434extern int pf_insert_src_node(struct pf_src_node **, 1435 struct pf_rule *, struct pf_addr *, 1436 sa_family_t); 1437void pf_src_tree_remove_state(struct pf_state *); 1438extern struct pf_state *pf_find_state_byid(struct pf_state *); 1439extern struct pf_state *pf_find_state_all(struct pf_state *key, 1440 u_int8_t tree, int *more); 1441extern struct pf_anchor *pf_find_anchor(const char *); 1442extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1443extern struct pf_ruleset *pf_find_or_create_ruleset( 1444 char[PF_ANCHOR_NAME_SIZE], 1445 char[PF_RULESET_NAME_SIZE]); 1446extern void pf_remove_if_empty_ruleset( 1447 struct pf_ruleset *); 1448extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1449 u_int8_t); 1450 1451extern struct ifnet *sync_ifp; 1452extern struct pf_rule pf_default_rule; 1453extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1454 u_int8_t); 1455void pf_rm_rule(struct pf_rulequeue *, 1456 struct pf_rule *); 1457 1458#ifdef INET 1459#ifdef __FreeBSD__ 1460int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *); 1461#else 1462int pf_test(int, struct ifnet *, struct mbuf **); 1463#endif 1464#endif /* INET */ 1465 1466#ifdef INET6 1467#ifdef __FreeBSD__ 1468int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *); 1469#else 1470int pf_test6(int, struct ifnet *, struct mbuf **); 1471#endif 1472void pf_poolmask(struct pf_addr *, struct pf_addr*, 1473 struct pf_addr *, struct pf_addr *, u_int8_t); 1474void pf_addr_inc(struct pf_addr *, sa_family_t); 1475#endif /* INET6 */ 1476 1477void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1478 sa_family_t); 1479void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1480int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1481 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1482int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1483 struct pf_addr *, sa_family_t); 1484int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1485int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1486int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1487int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1488 1489void pf_normalize_init(void); 1490int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *); 1491int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *); 1492int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1493 struct pf_pdesc *); 1494void pf_normalize_tcp_cleanup(struct pf_state *); 1495int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1496 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1497int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1498 u_short *, struct tcphdr *, struct pf_state_peer *, 1499 struct pf_state_peer *, int *); 1500u_int32_t 1501 pf_state_expires(const struct pf_state *); 1502void pf_purge_expired_fragments(void); 1503int pf_routable(struct pf_addr *addr, sa_family_t af); 1504void pfr_initialize(void); 1505int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1506void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1507 u_int64_t, int, int, int); 1508int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1509 struct pf_addr **, struct pf_addr **, sa_family_t); 1510void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1511struct pfr_ktable * 1512 pfr_attach_table(struct pf_ruleset *, char *); 1513void pfr_detach_table(struct pfr_ktable *); 1514int pfr_clr_tables(struct pfr_table *, int *, int); 1515int pfr_add_tables(struct pfr_table *, int, int *, int); 1516int pfr_del_tables(struct pfr_table *, int, int *, int); 1517int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1518int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1519int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1520int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1521int pfr_clr_addrs(struct pfr_table *, int *, int); 1522int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1523 int); 1524int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1525 int); 1526int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1527 int *, int *, int *, int); 1528int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1529int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1530int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1531 int); 1532int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1533 int); 1534int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1535int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1536int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1537int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1538 int *, u_int32_t, int); 1539 1540void pfi_initialize(void); 1541#ifdef __FreeBSD__ 1542void pfi_cleanup(void); 1543#endif 1544void pfi_attach_clone(struct if_clone *); 1545void pfi_attach_ifnet(struct ifnet *); 1546void pfi_detach_ifnet(struct ifnet *); 1547struct pfi_kif *pfi_lookup_create(const char *); 1548struct pfi_kif *pfi_lookup_if(const char *); 1549int pfi_maybe_destroy(struct pfi_kif *); 1550struct pfi_kif *pfi_attach_rule(const char *); 1551void pfi_detach_rule(struct pfi_kif *); 1552void pfi_attach_state(struct pfi_kif *); 1553void pfi_detach_state(struct pfi_kif *); 1554int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1555void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1556void pfi_dynaddr_remove(struct pf_addr_wrap *); 1557void pfi_fill_oldstatus(struct pf_status *); 1558int pfi_clr_istats(const char *, int *, int); 1559int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1560int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1561 sa_family_t); 1562 1563extern struct pfi_statehead pfi_statehead; 1564 1565u_int16_t pf_tagname2tag(char *); 1566void pf_tag2tagname(u_int16_t, char *); 1567void pf_tag_unref(u_int16_t); 1568int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1569u_int32_t pf_qname2qid(char *); 1570void pf_qid2qname(u_int32_t, char *); 1571void pf_qid_unref(u_int32_t); 1572 1573extern struct pf_status pf_status; 1574 1575#ifdef __FreeBSD__ 1576extern uma_zone_t pf_frent_pl, pf_frag_pl; 1577#else 1578extern struct pool pf_frent_pl, pf_frag_pl; 1579#endif 1580 1581struct pf_pool_limit { 1582 void *pp; 1583 unsigned limit; 1584}; 1585extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1586 1587#ifdef __FreeBSD__ 1588struct pf_frent { 1589 LIST_ENTRY(pf_frent) fr_next; 1590 struct ip *fr_ip; 1591 struct mbuf *fr_m; 1592}; 1593 1594struct pf_frcache { 1595 LIST_ENTRY(pf_frcache) fr_next; 1596 uint16_t fr_off; 1597 uint16_t fr_end; 1598}; 1599 1600struct pf_fragment { 1601 RB_ENTRY(pf_fragment) fr_entry; 1602 TAILQ_ENTRY(pf_fragment) frag_next; 1603 struct in_addr fr_src; 1604 struct in_addr fr_dst; 1605 u_int8_t fr_p; /* protocol of this fragment */ 1606 u_int8_t fr_flags; /* status flags */ 1607 u_int16_t fr_id; /* fragment id for reassemble */ 1608 u_int16_t fr_max; /* fragment data max */ 1609 u_int32_t fr_timeout; 1610#define fr_queue fr_u.fru_queue 1611#define fr_cache fr_u.fru_cache 1612 union { 1613 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1614 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1615 } fr_u; 1616}; 1617#endif /* (__FreeBSD__) */ 1618 1619#endif /* _KERNEL */ 1620 1621/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1622int pf_osfp_add(struct pf_osfp_ioctl *); 1623#ifdef _KERNEL 1624struct pf_osfp_enlist * 1625 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1626 const struct tcphdr *); 1627#endif /* _KERNEL */ 1628struct pf_osfp_enlist * 1629 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1630void pf_osfp_flush(void); 1631int pf_osfp_get(struct pf_osfp_ioctl *); 1632#ifdef __FreeBSD__ 1633int pf_osfp_initialize(void); 1634void pf_osfp_cleanup(void); 1635#else 1636void pf_osfp_initialize(void); 1637#endif 1638int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1639struct pf_os_fingerprint * 1640 pf_osfp_validate(void); 1641 1642 1643#endif /* _NET_PFVAR_H_ */ 1644