pf.h revision 130613
1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 130613 2004-06-16 23:24:02Z mlaier $ */ 2/* $OpenBSD: pfvar.h,v 1.187 2004/03/22 04:54:18 mcbride Exp $ */ 3 4/* 5 * Copyright (c) 2001 Daniel Hartmeier 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 */ 33 34#ifndef _NET_PFVAR_H_ 35#define _NET_PFVAR_H_ 36 37#include <sys/types.h> 38#include <sys/queue.h> 39#include <sys/tree.h> 40 41#include <net/radix.h> 42#ifdef __FreeBSD__ 43#include <vm/uma.h> 44#else 45#include <netinet/ip_ipsp.h> 46#endif 47 48#ifdef __FreeBSD__ 49#include <netinet/in.h> 50/* 51 * XXX 52 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 53 * This makes pfctl compilation difficult. 54 */ 55union sockaddr_union { 56 struct sockaddr sa; 57 struct sockaddr_in sin; 58 struct sockaddr_in6 sin6; 59}; 60#endif 61 62#include <netinet/tcp_fsm.h> 63 64struct ip; 65 66#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 67#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 68 69enum { PF_INOUT, PF_IN, PF_OUT }; 70enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 71enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 72 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 73enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 74 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 75enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 76 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 77enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 78enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 79 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 80 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 81/* 82 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 83 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 84 */ 85enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 86 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 87 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 88 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 89 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 90 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 91 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 92 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 93enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 94enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 95#define PF_POOL_IDMASK 0x0f 96enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 97 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 98enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 99 PF_ADDR_TABLE }; 100#define PF_POOL_TYPEMASK 0x0f 101#define PF_POOL_STICKYADDR 0x20 102#define PF_WSCALE_FLAG 0x80 103#define PF_WSCALE_MASK 0x0f 104 105struct pf_addr { 106 union { 107 struct in_addr v4; 108 struct in6_addr v6; 109 u_int8_t addr8[16]; 110 u_int16_t addr16[8]; 111 u_int32_t addr32[4]; 112 } pfa; /* 128-bit address */ 113#define v4 pfa.v4 114#define v6 pfa.v6 115#define addr8 pfa.addr8 116#define addr16 pfa.addr16 117#define addr32 pfa.addr32 118}; 119 120#define PF_TABLE_NAME_SIZE 32 121 122#define PFI_AFLAG_NETWORK 0x01 123#define PFI_AFLAG_BROADCAST 0x02 124#define PFI_AFLAG_PEER 0x04 125#define PFI_AFLAG_MODEMASK 0x07 126#define PFI_AFLAG_NOALIAS 0x08 127 128struct pf_addr_wrap { 129 union { 130 struct { 131 struct pf_addr addr; 132 struct pf_addr mask; 133 } a; 134 char ifname[IFNAMSIZ]; 135 char tblname[PF_TABLE_NAME_SIZE]; 136 } v; 137 union { 138 struct pfi_dynaddr *dyn; 139 struct pfr_ktable *tbl; 140 int dyncnt; 141 int tblcnt; 142 } p; 143 u_int8_t type; /* PF_ADDR_* */ 144 u_int8_t iflags; /* PFI_AFLAG_* */ 145}; 146 147#ifdef _KERNEL 148 149struct pfi_dynaddr { 150 struct pf_addr pfid_addr4; 151 struct pf_addr pfid_mask4; 152 struct pf_addr pfid_addr6; 153 struct pf_addr pfid_mask6; 154 struct pfr_ktable *pfid_kt; 155 struct pfi_kif *pfid_kif; 156 void *pfid_hook_cookie; 157 int pfid_net; /* optional mask, or 128 */ 158 int pfid_acnt4; /* address count, IPv4 */ 159 int pfid_acnt6; /* address count, IPv6 */ 160 sa_family_t pfid_af; /* rule address family */ 161 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 162}; 163 164/* 165 * Address manipulation macros 166 */ 167 168#ifdef __FreeBSD__ 169#define splsoftnet() splnet() 170 171#define HTONL(x) (x) = htonl((__uint32_t)(x)) 172#define HTONS(x) (x) = htons((__uint16_t)(x)) 173#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 174#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 175 176#define PF_NAME "pf" 177 178#define PR_NOWAIT M_NOWAIT 179#define pool_get(p, f) uma_zalloc(*(p), (f)) 180#define pool_put(p, o) uma_zfree(*(p), (o)) 181 182#define UMA_CREATE(var, type, desc) \ 183 var = uma_zcreate(desc, sizeof(type), \ 184 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 185 if (var == NULL) break 186#define UMA_DESTROY(var) \ 187 if(var) uma_zdestroy(var) 188 189extern struct mtx pf_task_mtx; 190 191#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h)) 192 193#define PF_LOCK() do { \ 194 PF_ASSERT(MA_NOTOWNED); \ 195 mtx_lock(&pf_task_mtx); \ 196} while(0) 197#define PF_UNLOCK() do { \ 198 PF_ASSERT(MA_OWNED); \ 199 mtx_unlock(&pf_task_mtx); \ 200} while(0) 201 202#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 203 PF_UNLOCK(); \ 204 r = copyin((uaddr), (kaddr), (len)); \ 205 PF_LOCK(); \ 206} while(0) 207 208#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 209 PF_UNLOCK(); \ 210 r = copyout((kaddr), (uaddr), (len)); \ 211 PF_LOCK(); \ 212} while(0) 213 214extern void init_pf_mutex(void); 215extern void destroy_pf_mutex(void); 216 217#define PF_MODVER 1 218#define PFLOG_MODVER 1 219#define PFSYNC_MODVER 1 220 221#define PFLOG_MINVER 1 222#define PFLOG_PREFVER PFLOG_MODVER 223#define PFLOG_MAXVER 1 224#define PFSYNC_MINVER 1 225#define PFSYNC_PREFVER PFSYNC_MODVER 226#define PFSYNC_MAXVER 1 227 228/* prototyped for pf_subr.c */ 229struct hook_desc { 230 TAILQ_ENTRY(hook_desc) hd_list; 231 void (*hd_fn)(void *); 232 void *hd_arg; 233}; 234TAILQ_HEAD(hook_desc_head, hook_desc); 235 236void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *); 237void hook_disestablish(struct hook_desc_head *, void *); 238void dohooks(struct hook_desc_head *, int); 239 240#define HOOK_REMOVE 0x01 241#define HOOK_FREE 0x02 242#endif /* __FreeBSD__ */ 243 244#ifdef INET 245#ifndef INET6 246#define PF_INET_ONLY 247#endif /* ! INET6 */ 248#endif /* INET */ 249 250#ifdef INET6 251#ifndef INET 252#define PF_INET6_ONLY 253#endif /* ! INET */ 254#endif /* INET6 */ 255 256#ifdef INET 257#ifdef INET6 258#define PF_INET_INET6 259#endif /* INET6 */ 260#endif /* INET */ 261 262#else 263 264#define PF_INET_INET6 265 266#endif /* _KERNEL */ 267 268/* Both IPv4 and IPv6 */ 269#ifdef PF_INET_INET6 270 271#define PF_AEQ(a, b, c) \ 272 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 273 ((a)->addr32[3] == (b)->addr32[3] && \ 274 (a)->addr32[2] == (b)->addr32[2] && \ 275 (a)->addr32[1] == (b)->addr32[1] && \ 276 (a)->addr32[0] == (b)->addr32[0])) \ 277 278#define PF_ANEQ(a, b, c) \ 279 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 280 ((a)->addr32[3] != (b)->addr32[3] || \ 281 (a)->addr32[2] != (b)->addr32[2] || \ 282 (a)->addr32[1] != (b)->addr32[1] || \ 283 (a)->addr32[0] != (b)->addr32[0])) \ 284 285#define PF_AZERO(a, c) \ 286 ((c == AF_INET && !(a)->addr32[0]) || \ 287 (!(a)->addr32[0] && !(a)->addr32[1] && \ 288 !(a)->addr32[2] && !(a)->addr32[3] )) \ 289 290#define PF_MATCHA(n, a, m, b, f) \ 291 pf_match_addr(n, a, m, b, f) 292 293#define PF_ACPY(a, b, f) \ 294 pf_addrcpy(a, b, f) 295 296#define PF_AINC(a, f) \ 297 pf_addr_inc(a, f) 298 299#define PF_POOLMASK(a, b, c, d, f) \ 300 pf_poolmask(a, b, c, d, f) 301 302#else 303 304/* Just IPv6 */ 305 306#ifdef PF_INET6_ONLY 307 308#define PF_AEQ(a, b, c) \ 309 ((a)->addr32[3] == (b)->addr32[3] && \ 310 (a)->addr32[2] == (b)->addr32[2] && \ 311 (a)->addr32[1] == (b)->addr32[1] && \ 312 (a)->addr32[0] == (b)->addr32[0]) \ 313 314#define PF_ANEQ(a, b, c) \ 315 ((a)->addr32[3] != (b)->addr32[3] || \ 316 (a)->addr32[2] != (b)->addr32[2] || \ 317 (a)->addr32[1] != (b)->addr32[1] || \ 318 (a)->addr32[0] != (b)->addr32[0]) \ 319 320#define PF_AZERO(a, c) \ 321 (!(a)->addr32[0] && \ 322 !(a)->addr32[1] && \ 323 !(a)->addr32[2] && \ 324 !(a)->addr32[3] ) \ 325 326#define PF_MATCHA(n, a, m, b, f) \ 327 pf_match_addr(n, a, m, b, f) 328 329#define PF_ACPY(a, b, f) \ 330 pf_addrcpy(a, b, f) 331 332#define PF_AINC(a, f) \ 333 pf_addr_inc(a, f) 334 335#define PF_POOLMASK(a, b, c, d, f) \ 336 pf_poolmask(a, b, c, d, f) 337 338#else 339 340/* Just IPv4 */ 341#ifdef PF_INET_ONLY 342 343#define PF_AEQ(a, b, c) \ 344 ((a)->addr32[0] == (b)->addr32[0]) 345 346#define PF_ANEQ(a, b, c) \ 347 ((a)->addr32[0] != (b)->addr32[0]) 348 349#define PF_AZERO(a, c) \ 350 (!(a)->addr32[0]) 351 352#define PF_MATCHA(n, a, m, b, f) \ 353 pf_match_addr(n, a, m, b, f) 354 355#define PF_ACPY(a, b, f) \ 356 (a)->v4.s_addr = (b)->v4.s_addr 357 358#define PF_AINC(a, f) \ 359 do { \ 360 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 361 } while (0) 362 363#define PF_POOLMASK(a, b, c, d, f) \ 364 do { \ 365 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 366 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 367 } while (0) 368 369#endif /* PF_INET_ONLY */ 370#endif /* PF_INET6_ONLY */ 371#endif /* PF_INET_INET6 */ 372 373#define PF_MISMATCHAW(aw, x, af, not) \ 374 ( \ 375 (((aw)->type == PF_ADDR_NOROUTE && \ 376 pf_routable((x), (af))) || \ 377 ((aw)->type == PF_ADDR_TABLE && \ 378 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 379 ((aw)->type == PF_ADDR_DYNIFTL && \ 380 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 381 ((aw)->type == PF_ADDR_ADDRMASK && \ 382 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 383 !PF_MATCHA(0, &(aw)->v.a.addr, \ 384 &(aw)->v.a.mask, (x), (af)))) != \ 385 (not) \ 386 ) 387 388struct pf_rule_uid { 389 uid_t uid[2]; 390 u_int8_t op; 391}; 392 393struct pf_rule_gid { 394 uid_t gid[2]; 395 u_int8_t op; 396}; 397 398struct pf_rule_addr { 399 struct pf_addr_wrap addr; 400 u_int16_t port[2]; 401 u_int8_t not; 402 u_int8_t port_op; 403}; 404 405struct pf_pooladdr { 406 struct pf_addr_wrap addr; 407 TAILQ_ENTRY(pf_pooladdr) entries; 408 char ifname[IFNAMSIZ]; 409 struct pfi_kif *kif; 410}; 411 412TAILQ_HEAD(pf_palist, pf_pooladdr); 413 414struct pf_poolhashkey { 415 union { 416 u_int8_t key8[16]; 417 u_int16_t key16[8]; 418 u_int32_t key32[4]; 419 } pfk; /* 128-bit hash key */ 420#define key8 pfk.key8 421#define key16 pfk.key16 422#define key32 pfk.key32 423}; 424 425struct pf_pool { 426 struct pf_palist list; 427 struct pf_pooladdr *cur; 428 struct pf_poolhashkey key; 429 struct pf_addr counter; 430 int tblidx; 431 u_int16_t proxy_port[2]; 432 u_int8_t port_op; 433 u_int8_t opts; 434}; 435 436 437/* A packed Operating System description for fingerprinting */ 438typedef u_int32_t pf_osfp_t; 439#define PF_OSFP_ANY ((pf_osfp_t)0) 440#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 441#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 442 443struct pf_osfp_entry { 444 SLIST_ENTRY(pf_osfp_entry) fp_entry; 445 pf_osfp_t fp_os; 446 int fp_enflags; 447#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 448#define PF_OSFP_GENERIC 0x002 /* generic signature */ 449#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 450#define PF_OSFP_LEN 32 451 char fp_class_nm[PF_OSFP_LEN]; 452 char fp_version_nm[PF_OSFP_LEN]; 453 char fp_subtype_nm[PF_OSFP_LEN]; 454}; 455#define PF_OSFP_ENTRY_EQ(a, b) \ 456 ((a)->fp_os == (b)->fp_os && \ 457 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 458 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 459 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 460 461/* handle pf_osfp_t packing */ 462#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 463#define _FP_UNUSED_BITS 1 464#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 465#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 466#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 467#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 468 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 469 ((1 << _FP_CLASS_BITS) - 1); \ 470 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 471 ((1 << _FP_VERSION_BITS) - 1);\ 472 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 473} while(0) 474#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 475 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 476 + _FP_SUBTYPE_BITS); \ 477 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 478 _FP_SUBTYPE_BITS; \ 479 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 480} while(0) 481 482/* the fingerprint of an OSes TCP SYN packet */ 483typedef u_int64_t pf_tcpopts_t; 484struct pf_os_fingerprint { 485 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 486 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 487 u_int16_t fp_wsize; /* TCP window size */ 488 u_int16_t fp_psize; /* ip->ip_len */ 489 u_int16_t fp_mss; /* TCP MSS */ 490 u_int16_t fp_flags; 491#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 492#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 493#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 494#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 495#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 496#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 497#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 498#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 499#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 500#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 501#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 502#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 503#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 504#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 505 u_int8_t fp_optcnt; /* TCP option count */ 506 u_int8_t fp_wscale; /* TCP window scaling */ 507 u_int8_t fp_ttl; /* IPv4 TTL */ 508#define PF_OSFP_MAXTTL_OFFSET 40 509/* TCP options packing */ 510#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 511#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 512#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 513#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 514#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 515#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 516#define PF_OSFP_MAX_OPTS \ 517 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 518 / PF_OSFP_TCPOPT_BITS 519 520 SLIST_ENTRY(pf_os_fingerprint) fp_next; 521}; 522 523struct pf_osfp_ioctl { 524 struct pf_osfp_entry fp_os; 525 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 526 u_int16_t fp_wsize; /* TCP window size */ 527 u_int16_t fp_psize; /* ip->ip_len */ 528 u_int16_t fp_mss; /* TCP MSS */ 529 u_int16_t fp_flags; 530 u_int8_t fp_optcnt; /* TCP option count */ 531 u_int8_t fp_wscale; /* TCP window scaling */ 532 u_int8_t fp_ttl; /* IPv4 TTL */ 533 534 int fp_getnum; /* DIOCOSFPGET number */ 535}; 536 537 538union pf_rule_ptr { 539 struct pf_rule *ptr; 540 u_int32_t nr; 541}; 542 543struct pf_rule { 544 struct pf_rule_addr src; 545 struct pf_rule_addr dst; 546#define PF_SKIP_IFP 0 547#define PF_SKIP_DIR 1 548#define PF_SKIP_AF 2 549#define PF_SKIP_PROTO 3 550#define PF_SKIP_SRC_ADDR 4 551#define PF_SKIP_SRC_PORT 5 552#define PF_SKIP_DST_ADDR 6 553#define PF_SKIP_DST_PORT 7 554#define PF_SKIP_COUNT 8 555 union pf_rule_ptr skip[PF_SKIP_COUNT]; 556#define PF_RULE_LABEL_SIZE 64 557 char label[PF_RULE_LABEL_SIZE]; 558#define PF_QNAME_SIZE 16 559 char ifname[IFNAMSIZ]; 560 char qname[PF_QNAME_SIZE]; 561 char pqname[PF_QNAME_SIZE]; 562#define PF_ANCHOR_NAME_SIZE 16 563 char anchorname[PF_ANCHOR_NAME_SIZE]; 564#define PF_TAG_NAME_SIZE 16 565 char tagname[PF_TAG_NAME_SIZE]; 566 char match_tagname[PF_TAG_NAME_SIZE]; 567 568 TAILQ_ENTRY(pf_rule) entries; 569 struct pf_pool rpool; 570 571 u_int64_t evaluations; 572 u_int64_t packets; 573 u_int64_t bytes; 574 575 struct pfi_kif *kif; 576 struct pf_anchor *anchor; 577 578 pf_osfp_t os_fingerprint; 579 580 u_int32_t timeout[PFTM_MAX]; 581 u_int32_t states; 582 u_int32_t max_states; 583 u_int32_t src_nodes; 584 u_int32_t max_src_nodes; 585 u_int32_t max_src_states; 586 u_int32_t qid; 587 u_int32_t pqid; 588 u_int32_t rt_listid; 589 u_int32_t nr; 590 591 u_int16_t return_icmp; 592 u_int16_t return_icmp6; 593 u_int16_t max_mss; 594 u_int16_t tag; 595 u_int16_t match_tag; 596 597 struct pf_rule_uid uid; 598 struct pf_rule_gid gid; 599 600 u_int32_t rule_flag; 601 u_int8_t action; 602 u_int8_t direction; 603 u_int8_t log; 604 u_int8_t quick; 605 u_int8_t ifnot; 606 u_int8_t match_tag_not; 607 u_int8_t natpass; 608 609#define PF_STATE_NORMAL 0x1 610#define PF_STATE_MODULATE 0x2 611#define PF_STATE_SYNPROXY 0x3 612 u_int8_t keep_state; 613 sa_family_t af; 614 u_int8_t proto; 615 u_int8_t type; 616 u_int8_t code; 617 u_int8_t flags; 618 u_int8_t flagset; 619 u_int8_t min_ttl; 620 u_int8_t allow_opts; 621 u_int8_t rt; 622 u_int8_t return_ttl; 623 u_int8_t tos; 624}; 625 626/* rule flags */ 627#define PFRULE_DROP 0x0000 628#define PFRULE_RETURNRST 0x0001 629#define PFRULE_FRAGMENT 0x0002 630#define PFRULE_RETURNICMP 0x0004 631#define PFRULE_RETURN 0x0008 632#define PFRULE_NOSYNC 0x0010 633#define PFRULE_SRCTRACK 0x0020 /* track source states */ 634#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 635 636/* scrub flags */ 637#define PFRULE_NODF 0x0100 638#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 639#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 640#define PFRULE_RANDOMID 0x0800 641#define PFRULE_REASSEMBLE_TCP 0x1000 642 643/* rule flags again */ 644#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 645#define PFRULE_GRBOUND 0x00020000 /* group-bound */ 646 647#define PFSTATE_HIWAT 10000 /* default state table size */ 648 649struct pf_src_node { 650 RB_ENTRY(pf_src_node) entry; 651 struct pf_addr addr; 652 struct pf_addr raddr; 653 union pf_rule_ptr rule; 654 struct pfi_kif *kif; 655 u_int32_t bytes; 656 u_int32_t packets; 657 u_int32_t states; 658 u_int32_t creation; 659 u_int32_t expire; 660 sa_family_t af; 661 u_int8_t ruletype; 662}; 663 664#define PFSNODE_HIWAT 10000 /* default source node table size */ 665 666struct pf_state_scrub { 667 u_int16_t pfss_flags; 668#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 669 u_int8_t pfss_ttl; /* stashed TTL */ 670 u_int8_t pad; 671 u_int32_t pfss_ts_mod; /* timestamp modulation */ 672}; 673 674struct pf_state_host { 675 struct pf_addr addr; 676 u_int16_t port; 677 u_int16_t pad; 678}; 679 680struct pf_state_peer { 681 u_int32_t seqlo; /* Max sequence number sent */ 682 u_int32_t seqhi; /* Max the other end ACKd + win */ 683 u_int32_t seqdiff; /* Sequence number modulator */ 684 u_int16_t max_win; /* largest window (pre scaling) */ 685 u_int8_t state; /* active state level */ 686 u_int8_t wscale; /* window scaling factor */ 687 u_int16_t mss; /* Maximum segment size option */ 688 struct pf_state_scrub *scrub; /* state is scrubbed */ 689}; 690 691TAILQ_HEAD(pf_state_queue, pf_state); 692 693struct pf_state { 694 u_int64_t id; 695 union { 696 struct { 697 RB_ENTRY(pf_state) entry_lan_ext; 698 RB_ENTRY(pf_state) entry_ext_gwy; 699 RB_ENTRY(pf_state) entry_id; 700 TAILQ_ENTRY(pf_state) entry_updates; 701 struct pfi_kif *kif; 702 } s; 703 char ifname[IFNAMSIZ]; 704 } u; 705 struct pf_state_host lan; 706 struct pf_state_host gwy; 707 struct pf_state_host ext; 708 struct pf_state_peer src; 709 struct pf_state_peer dst; 710 union pf_rule_ptr rule; 711 union pf_rule_ptr anchor; 712 union pf_rule_ptr nat_rule; 713 struct pf_addr rt_addr; 714 struct pfi_kif *rt_kif; 715 struct pf_src_node *src_node; 716 struct pf_src_node *nat_src_node; 717 u_int32_t creation; 718 u_int32_t expire; 719 u_int32_t pfsync_time; 720 u_int32_t packets[2]; 721 u_int32_t bytes[2]; 722 u_int32_t creatorid; 723 sa_family_t af; 724 u_int8_t proto; 725 u_int8_t direction; 726 u_int8_t log; 727 u_int8_t allow_opts; 728 u_int8_t timeout; 729 u_int8_t sync_flags; 730#define PFSTATE_NOSYNC 0x01 731#define PFSTATE_FROMSYNC 0x02 732 u_int8_t pad; 733}; 734 735TAILQ_HEAD(pf_rulequeue, pf_rule); 736 737struct pf_anchor; 738 739struct pf_ruleset { 740 TAILQ_ENTRY(pf_ruleset) entries; 741#define PF_RULESET_NAME_SIZE 16 742 char name[PF_RULESET_NAME_SIZE]; 743 struct { 744 struct pf_rulequeue queues[2]; 745 struct { 746 struct pf_rulequeue *ptr; 747 u_int32_t ticket; 748 int open; 749 } active, inactive; 750 } rules[PF_RULESET_MAX]; 751 struct pf_anchor *anchor; 752 u_int32_t tticket; 753 int tables; 754 int topen; 755}; 756 757TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 758 759struct pf_anchor { 760 TAILQ_ENTRY(pf_anchor) entries; 761 char name[PF_ANCHOR_NAME_SIZE]; 762 struct pf_rulesetqueue rulesets; 763 int tables; 764}; 765 766TAILQ_HEAD(pf_anchorqueue, pf_anchor); 767 768#define PF_RESERVED_ANCHOR "_pf" 769#define PF_INTERFACE_RULESET "_if" 770 771#define PFR_TFLAG_PERSIST 0x00000001 772#define PFR_TFLAG_CONST 0x00000002 773#define PFR_TFLAG_ACTIVE 0x00000004 774#define PFR_TFLAG_INACTIVE 0x00000008 775#define PFR_TFLAG_REFERENCED 0x00000010 776#define PFR_TFLAG_REFDANCHOR 0x00000020 777#define PFR_TFLAG_USRMASK 0x00000003 778#define PFR_TFLAG_SETMASK 0x0000003C 779#define PFR_TFLAG_ALLMASK 0x0000003F 780 781struct pfr_table { 782 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 783 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 784 char pfrt_name[PF_TABLE_NAME_SIZE]; 785 u_int32_t pfrt_flags; 786 u_int8_t pfrt_fback; 787}; 788 789enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 790 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 791 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 792 793struct pfr_addr { 794 union { 795 struct in_addr _pfra_ip4addr; 796 struct in6_addr _pfra_ip6addr; 797 } pfra_u; 798 u_int8_t pfra_af; 799 u_int8_t pfra_net; 800 u_int8_t pfra_not; 801 u_int8_t pfra_fback; 802}; 803#define pfra_ip4addr pfra_u._pfra_ip4addr 804#define pfra_ip6addr pfra_u._pfra_ip6addr 805 806enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 807enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 808#define PFR_OP_XPASS PFR_OP_ADDR_MAX 809 810struct pfr_astats { 811 struct pfr_addr pfras_a; 812 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 813 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 814 long pfras_tzero; 815}; 816 817enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 818 819struct pfr_tstats { 820 struct pfr_table pfrts_t; 821 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 822 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 823 u_int64_t pfrts_match; 824 u_int64_t pfrts_nomatch; 825 long pfrts_tzero; 826 int pfrts_cnt; 827 int pfrts_refcnt[PFR_REFCNT_MAX]; 828}; 829#define pfrts_name pfrts_t.pfrt_name 830#define pfrts_flags pfrts_t.pfrt_flags 831 832SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 833struct pfr_kentry { 834 struct radix_node pfrke_node[2]; 835 union sockaddr_union pfrke_sa; 836 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 837 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 838 SLIST_ENTRY(pfr_kentry) pfrke_workq; 839 long pfrke_tzero; 840 u_int8_t pfrke_af; 841 u_int8_t pfrke_net; 842 u_int8_t pfrke_not; 843 u_int8_t pfrke_mark; 844}; 845 846SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 847RB_HEAD(pfr_ktablehead, pfr_ktable); 848struct pfr_ktable { 849 struct pfr_tstats pfrkt_ts; 850 RB_ENTRY(pfr_ktable) pfrkt_tree; 851 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 852 struct radix_node_head *pfrkt_ip4; 853 struct radix_node_head *pfrkt_ip6; 854 struct pfr_ktable *pfrkt_shadow; 855 struct pfr_ktable *pfrkt_root; 856 struct pf_ruleset *pfrkt_rs; 857 long pfrkt_larg; 858 int pfrkt_nflags; 859}; 860#define pfrkt_t pfrkt_ts.pfrts_t 861#define pfrkt_name pfrkt_t.pfrt_name 862#define pfrkt_anchor pfrkt_t.pfrt_anchor 863#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 864#define pfrkt_flags pfrkt_t.pfrt_flags 865#define pfrkt_cnt pfrkt_ts.pfrts_cnt 866#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 867#define pfrkt_packets pfrkt_ts.pfrts_packets 868#define pfrkt_bytes pfrkt_ts.pfrts_bytes 869#define pfrkt_match pfrkt_ts.pfrts_match 870#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 871#define pfrkt_tzero pfrkt_ts.pfrts_tzero 872 873RB_HEAD(pf_state_tree_lan_ext, pf_state); 874RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 875 u.s.entry_lan_ext, pf_state_compare_lan_ext); 876 877RB_HEAD(pf_state_tree_ext_gwy, pf_state); 878RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 879 u.s.entry_ext_gwy, pf_state_compare_ext_gwy); 880 881struct pfi_if { 882 char pfif_name[IFNAMSIZ]; 883 u_int64_t pfif_packets[2][2][2]; 884 u_int64_t pfif_bytes[2][2][2]; 885 u_int64_t pfif_addcnt; 886 u_int64_t pfif_delcnt; 887 long pfif_tzero; 888 int pfif_states; 889 int pfif_rules; 890 int pfif_flags; 891}; 892 893TAILQ_HEAD(pfi_grouphead, pfi_kif); 894TAILQ_HEAD(pfi_statehead, pfi_kif); 895RB_HEAD(pfi_ifhead, pfi_kif); 896struct pfi_kif { 897 struct pfi_if pfik_if; 898 RB_ENTRY(pfi_kif) pfik_tree; 899 struct pf_state_tree_lan_ext pfik_lan_ext; 900 struct pf_state_tree_ext_gwy pfik_ext_gwy; 901 struct pfi_grouphead pfik_grouphead; 902 TAILQ_ENTRY(pfi_kif) pfik_instances; 903 TAILQ_ENTRY(pfi_kif) pfik_w_states; 904 struct hook_desc_head *pfik_ah_head; 905 void *pfik_ah_cookie; 906 struct pfi_kif *pfik_parent; 907 struct ifnet *pfik_ifp; 908 int pfik_states; 909 int pfik_rules; 910}; 911#define pfik_name pfik_if.pfif_name 912#define pfik_packets pfik_if.pfif_packets 913#define pfik_bytes pfik_if.pfif_bytes 914#define pfik_tzero pfik_if.pfif_tzero 915#define pfik_flags pfik_if.pfif_flags 916#define pfik_addcnt pfik_if.pfif_addcnt 917#define pfik_delcnt pfik_if.pfif_delcnt 918#define pfik_states pfik_if.pfif_states 919#define pfik_rules pfik_if.pfif_rules 920 921#define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 922#define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 923#define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 924#define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 925#define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 926#define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */ 927 928struct pf_pdesc { 929 u_int64_t tot_len; /* Make Mickey money */ 930 union { 931 struct tcphdr *tcp; 932 struct udphdr *udp; 933 struct icmp *icmp; 934#ifdef INET6 935 struct icmp6_hdr *icmp6; 936#endif /* INET6 */ 937 void *any; 938 } hdr; 939 struct pf_addr baddr; /* address before translation */ 940 struct pf_addr naddr; /* address after translation */ 941 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 942 struct pf_addr *src; 943 struct pf_addr *dst; 944 u_int16_t *ip_sum; 945 u_int32_t p_len; /* total length of payload */ 946 u_int16_t flags; /* Let SCRUB trigger behavior in 947 * state code. Easier than tags */ 948#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 949 sa_family_t af; 950 u_int8_t proto; 951 u_int8_t tos; 952}; 953 954/* flags for RDR options */ 955#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 956#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 957 958/* Reasons code for passing/dropping a packet */ 959#define PFRES_MATCH 0 /* Explicit match of a rule */ 960#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 961#define PFRES_FRAG 2 /* Dropping following fragment */ 962#define PFRES_SHORT 3 /* Dropping short packet */ 963#define PFRES_NORM 4 /* Dropping by normalizer */ 964#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 965#define PFRES_MAX 6 /* total+1 */ 966 967#define PFRES_NAMES { \ 968 "match", \ 969 "bad-offset", \ 970 "fragment", \ 971 "short", \ 972 "normalize", \ 973 "memory", \ 974 NULL \ 975} 976 977/* UDP state enumeration */ 978#define PFUDPS_NO_TRAFFIC 0 979#define PFUDPS_SINGLE 1 980#define PFUDPS_MULTIPLE 2 981 982#define PFUDPS_NSTATES 3 /* number of state levels */ 983 984#define PFUDPS_NAMES { \ 985 "NO_TRAFFIC", \ 986 "SINGLE", \ 987 "MULTIPLE", \ 988 NULL \ 989} 990 991/* Other protocol state enumeration */ 992#define PFOTHERS_NO_TRAFFIC 0 993#define PFOTHERS_SINGLE 1 994#define PFOTHERS_MULTIPLE 2 995 996#define PFOTHERS_NSTATES 3 /* number of state levels */ 997 998#define PFOTHERS_NAMES { \ 999 "NO_TRAFFIC", \ 1000 "SINGLE", \ 1001 "MULTIPLE", \ 1002 NULL \ 1003} 1004 1005#define FCNT_STATE_SEARCH 0 1006#define FCNT_STATE_INSERT 1 1007#define FCNT_STATE_REMOVALS 2 1008#define FCNT_MAX 3 1009 1010#define SCNT_SRC_NODE_SEARCH 0 1011#define SCNT_SRC_NODE_INSERT 1 1012#define SCNT_SRC_NODE_REMOVALS 2 1013#define SCNT_MAX 3 1014 1015#define ACTION_SET(a, x) \ 1016 do { \ 1017 if ((a) != NULL) \ 1018 *(a) = (x); \ 1019 } while (0) 1020 1021#define REASON_SET(a, x) \ 1022 do { \ 1023 if ((a) != NULL) \ 1024 *(a) = (x); \ 1025 if (x < PFRES_MAX) \ 1026 pf_status.counters[x]++; \ 1027 } while (0) 1028 1029struct pf_status { 1030 u_int64_t counters[PFRES_MAX]; 1031 u_int64_t fcounters[FCNT_MAX]; 1032 u_int64_t scounters[SCNT_MAX]; 1033 u_int64_t pcounters[2][2][3]; 1034 u_int64_t bcounters[2][2]; 1035 u_int64_t stateid; 1036 u_int32_t running; 1037 u_int32_t states; 1038 u_int32_t src_nodes; 1039 u_int32_t since; 1040 u_int32_t debug; 1041 u_int32_t hostid; 1042 char ifname[IFNAMSIZ]; 1043}; 1044 1045struct cbq_opts { 1046 u_int minburst; 1047 u_int maxburst; 1048 u_int pktsize; 1049 u_int maxpktsize; 1050 u_int ns_per_byte; 1051 u_int maxidle; 1052 int minidle; 1053 u_int offtime; 1054 int flags; 1055}; 1056 1057struct priq_opts { 1058 int flags; 1059}; 1060 1061struct hfsc_opts { 1062 /* real-time service curve */ 1063 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1064 u_int rtsc_d; /* the x-projection of m1 in msec */ 1065 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1066 /* link-sharing service curve */ 1067 u_int lssc_m1; 1068 u_int lssc_d; 1069 u_int lssc_m2; 1070 /* upper-limit service curve */ 1071 u_int ulsc_m1; 1072 u_int ulsc_d; 1073 u_int ulsc_m2; 1074 int flags; 1075}; 1076 1077struct pf_altq { 1078 char ifname[IFNAMSIZ]; 1079 1080 void *altq_disc; /* discipline-specific state */ 1081 TAILQ_ENTRY(pf_altq) entries; 1082 1083 /* scheduler spec */ 1084 u_int8_t scheduler; /* scheduler type */ 1085 u_int16_t tbrsize; /* tokenbucket regulator size */ 1086 u_int32_t ifbandwidth; /* interface bandwidth */ 1087 1088 /* queue spec */ 1089 char qname[PF_QNAME_SIZE]; /* queue name */ 1090 char parent[PF_QNAME_SIZE]; /* parent name */ 1091 u_int32_t parent_qid; /* parent queue id */ 1092 u_int32_t bandwidth; /* queue bandwidth */ 1093 u_int8_t priority; /* priority */ 1094 u_int16_t qlimit; /* queue size limit */ 1095 u_int16_t flags; /* misc flags */ 1096 union { 1097 struct cbq_opts cbq_opts; 1098 struct priq_opts priq_opts; 1099 struct hfsc_opts hfsc_opts; 1100 } pq_u; 1101 1102 u_int32_t qid; /* return value */ 1103}; 1104 1105struct pf_tag { 1106 u_int16_t tag; /* tag id */ 1107}; 1108 1109struct pf_tagname { 1110 TAILQ_ENTRY(pf_tagname) entries; 1111 char name[PF_TAG_NAME_SIZE]; 1112 u_int16_t tag; 1113 int ref; 1114}; 1115 1116#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1117#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1118#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1119#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1120 1121/* 1122 * ioctl parameter structures 1123 */ 1124 1125struct pfioc_pooladdr { 1126 u_int32_t action; 1127 u_int32_t ticket; 1128 u_int32_t nr; 1129 u_int32_t r_num; 1130 u_int8_t r_action; 1131 u_int8_t r_last; 1132 u_int8_t af; 1133 char anchor[PF_ANCHOR_NAME_SIZE]; 1134 char ruleset[PF_RULESET_NAME_SIZE]; 1135 struct pf_pooladdr addr; 1136}; 1137 1138struct pfioc_rule { 1139 u_int32_t action; 1140 u_int32_t ticket; 1141 u_int32_t pool_ticket; 1142 u_int32_t nr; 1143 char anchor[PF_ANCHOR_NAME_SIZE]; 1144 char ruleset[PF_RULESET_NAME_SIZE]; 1145 struct pf_rule rule; 1146}; 1147 1148struct pfioc_natlook { 1149 struct pf_addr saddr; 1150 struct pf_addr daddr; 1151 struct pf_addr rsaddr; 1152 struct pf_addr rdaddr; 1153 u_int16_t sport; 1154 u_int16_t dport; 1155 u_int16_t rsport; 1156 u_int16_t rdport; 1157 sa_family_t af; 1158 u_int8_t proto; 1159 u_int8_t direction; 1160}; 1161 1162struct pfioc_state { 1163 u_int32_t nr; 1164 struct pf_state state; 1165}; 1166 1167struct pfioc_state_kill { 1168 /* XXX returns the number of states killed in psk_af */ 1169 sa_family_t psk_af; 1170 int psk_proto; 1171 struct pf_rule_addr psk_src; 1172 struct pf_rule_addr psk_dst; 1173 char psk_ifname[IFNAMSIZ]; 1174}; 1175 1176struct pfioc_states { 1177 int ps_len; 1178 union { 1179 caddr_t psu_buf; 1180 struct pf_state *psu_states; 1181 } ps_u; 1182#define ps_buf ps_u.psu_buf 1183#define ps_states ps_u.psu_states 1184}; 1185 1186struct pfioc_src_nodes { 1187 int psn_len; 1188 union { 1189 caddr_t psu_buf; 1190 struct pf_src_node *psu_src_nodes; 1191 } psn_u; 1192#define psn_buf psn_u.psu_buf 1193#define psn_src_nodes psn_u.psu_src_nodes 1194}; 1195 1196struct pfioc_if { 1197 char ifname[IFNAMSIZ]; 1198}; 1199 1200struct pfioc_tm { 1201 int timeout; 1202 int seconds; 1203}; 1204 1205struct pfioc_limit { 1206 int index; 1207 unsigned limit; 1208}; 1209 1210struct pfioc_altq { 1211 u_int32_t action; 1212 u_int32_t ticket; 1213 u_int32_t nr; 1214 struct pf_altq altq; 1215}; 1216 1217struct pfioc_qstats { 1218 u_int32_t ticket; 1219 u_int32_t nr; 1220 void *buf; 1221 int nbytes; 1222 u_int8_t scheduler; 1223}; 1224 1225struct pfioc_anchor { 1226 u_int32_t nr; 1227 char name[PF_ANCHOR_NAME_SIZE]; 1228}; 1229 1230struct pfioc_ruleset { 1231 u_int32_t nr; 1232 char anchor[PF_ANCHOR_NAME_SIZE]; 1233 char name[PF_RULESET_NAME_SIZE]; 1234}; 1235 1236#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1237#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1238struct pfioc_trans { 1239 int size; /* number of elements */ 1240 int esize; /* size of each element in bytes */ 1241 struct pfioc_trans_e { 1242 int rs_num; 1243 char anchor[PF_ANCHOR_NAME_SIZE]; 1244 char ruleset[PF_RULESET_NAME_SIZE]; 1245 u_int32_t ticket; 1246 } *array; 1247}; 1248 1249#define PFR_FLAG_ATOMIC 0x00000001 1250#define PFR_FLAG_DUMMY 0x00000002 1251#define PFR_FLAG_FEEDBACK 0x00000004 1252#define PFR_FLAG_CLSTATS 0x00000008 1253#define PFR_FLAG_ADDRSTOO 0x00000010 1254#define PFR_FLAG_REPLACE 0x00000020 1255#define PFR_FLAG_ALLRSETS 0x00000040 1256#define PFR_FLAG_ALLMASK 0x0000007F 1257#ifdef _KERNEL 1258#define PFR_FLAG_USERIOCTL 0x10000000 1259#endif 1260 1261struct pfioc_table { 1262 struct pfr_table pfrio_table; 1263 void *pfrio_buffer; 1264 int pfrio_esize; 1265 int pfrio_size; 1266 int pfrio_size2; 1267 int pfrio_nadd; 1268 int pfrio_ndel; 1269 int pfrio_nchange; 1270 int pfrio_flags; 1271 u_int32_t pfrio_ticket; 1272}; 1273#define pfrio_exists pfrio_nadd 1274#define pfrio_nzero pfrio_nadd 1275#define pfrio_nmatch pfrio_nadd 1276#define pfrio_naddr pfrio_size2 1277#define pfrio_setflag pfrio_size2 1278#define pfrio_clrflag pfrio_nadd 1279 1280 1281#define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1282#define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1283#define PFI_FLAG_ALLMASK 0x0003 1284 1285struct pfioc_iface { 1286 char pfiio_name[IFNAMSIZ]; 1287 void *pfiio_buffer; 1288 int pfiio_esize; 1289 int pfiio_size; 1290 int pfiio_nzero; 1291 int pfiio_flags; 1292}; 1293 1294 1295/* 1296 * ioctl operations 1297 */ 1298 1299#define DIOCSTART _IO ('D', 1) 1300#define DIOCSTOP _IO ('D', 2) 1301#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1302#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1303#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1304#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1305#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1306/* XXX cut 8 - 17 */ 1307#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1308#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1309#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1310#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1311#define DIOCCLRSTATUS _IO ('D', 22) 1312#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1313#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1314#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1315#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1316/* XXX cut 26 - 28 */ 1317#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1318#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1319#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1320#define DIOCCLRRULECTRS _IO ('D', 38) 1321#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1322#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1323#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1324#define DIOCSTARTALTQ _IO ('D', 42) 1325#define DIOCSTOPALTQ _IO ('D', 43) 1326#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1327#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1328#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1329#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1330#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1331#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1332#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1333#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1334#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1335#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1336#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1337#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1338#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1339#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1340#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1341#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1342#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1343#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1344#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1345#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1346#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1347#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1348#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1349#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1350#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1351#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1352#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1353#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1354#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1355#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1356#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1357#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1358#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1359#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1360#define DIOCOSFPFLUSH _IO('D', 78) 1361#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1362#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1363#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1364#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1365#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1366#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1367#define DIOCCLRSRCNODES _IO('D', 85) 1368#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1369#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1370#define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1371#ifdef __FreeBSD__ 1372struct pf_ifspeed { 1373 char ifname[IFNAMSIZ]; 1374 u_int32_t baudrate; 1375}; 1376#define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed) 1377#endif 1378 1379#ifdef _KERNEL 1380RB_HEAD(pf_src_tree, pf_src_node); 1381RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1382extern struct pf_src_tree tree_src_tracking; 1383 1384RB_HEAD(pf_state_tree_id, pf_state); 1385RB_PROTOTYPE(pf_state_tree_id, pf_state, 1386 entry_id, pf_state_compare_id); 1387extern struct pf_state_tree_id tree_id; 1388extern struct pf_state_queue state_updates; 1389 1390extern struct pf_anchorqueue pf_anchors; 1391extern struct pf_ruleset pf_main_ruleset; 1392TAILQ_HEAD(pf_poolqueue, pf_pool); 1393extern struct pf_poolqueue pf_pools[2]; 1394TAILQ_HEAD(pf_altqqueue, pf_altq); 1395extern struct pf_altqqueue pf_altqs[2]; 1396extern struct pf_palist pf_pabuf; 1397extern struct pfi_kif **pfi_index2kif; 1398 1399extern u_int32_t ticket_altqs_active; 1400extern u_int32_t ticket_altqs_inactive; 1401extern int altqs_inactive_open; 1402extern u_int32_t ticket_pabuf; 1403extern struct pf_altqqueue *pf_altqs_active; 1404extern struct pf_altqqueue *pf_altqs_inactive; 1405extern struct pf_poolqueue *pf_pools_active; 1406extern struct pf_poolqueue *pf_pools_inactive; 1407extern int pf_tbladdr_setup(struct pf_ruleset *, 1408 struct pf_addr_wrap *); 1409extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1410extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1411extern void pf_calc_skip_steps(struct pf_rulequeue *); 1412extern void pf_update_anchor_rules(void); 1413#ifdef __FreeBSD__ 1414extern uma_zone_t pf_src_tree_pl, pf_rule_pl; 1415extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1416extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl; 1417extern uma_zone_t pf_cache_pl, pf_cent_pl; 1418extern uma_zone_t pf_state_scrub_pl; 1419extern uma_zone_t pfi_addr_pl; 1420#else 1421extern struct pool pf_src_tree_pl, pf_rule_pl; 1422extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1423extern struct pool pf_state_scrub_pl; 1424#endif 1425extern void pf_purge_timeout(void *); 1426extern void pf_purge_expired_src_nodes(void); 1427extern void pf_purge_expired_states(void); 1428extern int pf_insert_state(struct pfi_kif *, 1429 struct pf_state *); 1430extern int pf_insert_src_node(struct pf_src_node **, 1431 struct pf_rule *, struct pf_addr *, 1432 sa_family_t); 1433void pf_src_tree_remove_state(struct pf_state *); 1434extern struct pf_state *pf_find_state_byid(struct pf_state *); 1435extern struct pf_state *pf_find_state_all(struct pf_state *key, 1436 u_int8_t tree, int *more); 1437extern struct pf_anchor *pf_find_anchor(const char *); 1438extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1439extern struct pf_ruleset *pf_find_or_create_ruleset( 1440 char[PF_ANCHOR_NAME_SIZE], 1441 char[PF_RULESET_NAME_SIZE]); 1442extern void pf_remove_if_empty_ruleset( 1443 struct pf_ruleset *); 1444 1445extern struct ifnet *sync_ifp; 1446extern struct pf_rule pf_default_rule; 1447extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1448 u_int8_t); 1449void pf_rm_rule(struct pf_rulequeue *, 1450 struct pf_rule *); 1451 1452#ifdef INET 1453int pf_test(int, struct ifnet *, struct mbuf **); 1454#endif /* INET */ 1455 1456#ifdef INET6 1457int pf_test6(int, struct ifnet *, struct mbuf **); 1458void pf_poolmask(struct pf_addr *, struct pf_addr*, 1459 struct pf_addr *, struct pf_addr *, u_int8_t); 1460void pf_addr_inc(struct pf_addr *, sa_family_t); 1461#endif /* INET6 */ 1462 1463void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1464 sa_family_t); 1465void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1466int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1467 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1468int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1469 struct pf_addr *, sa_family_t); 1470int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1471int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1472int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1473int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1474 1475void pf_normalize_init(void); 1476int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *); 1477int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *); 1478int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1479 struct pf_pdesc *); 1480void pf_normalize_tcp_cleanup(struct pf_state *); 1481int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1482 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1483int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1484 u_short *, struct tcphdr *, struct pf_state_peer *, 1485 struct pf_state_peer *, int *); 1486u_int32_t 1487 pf_state_expires(const struct pf_state *); 1488void pf_purge_expired_fragments(void); 1489int pf_routable(struct pf_addr *addr, sa_family_t af); 1490void pfr_initialize(void); 1491int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1492void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1493 u_int64_t, int, int, int); 1494int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1495 struct pf_addr **, struct pf_addr **, sa_family_t); 1496void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1497struct pfr_ktable * 1498 pfr_attach_table(struct pf_ruleset *, char *); 1499void pfr_detach_table(struct pfr_ktable *); 1500int pfr_clr_tables(struct pfr_table *, int *, int); 1501int pfr_add_tables(struct pfr_table *, int, int *, int); 1502int pfr_del_tables(struct pfr_table *, int, int *, int); 1503int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1504int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1505int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1506int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1507int pfr_clr_addrs(struct pfr_table *, int *, int); 1508int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1509 int); 1510int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1511 int); 1512int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1513 int *, int *, int *, int); 1514int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1515int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1516int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1517 int); 1518int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1519 int); 1520int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1521int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1522int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1523int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1524 int *, u_int32_t, int); 1525 1526void pfi_initialize(void); 1527#ifdef __FreeBSD__ 1528void pfi_cleanup(void); 1529#endif 1530void pfi_attach_clone(struct if_clone *); 1531void pfi_attach_ifnet(struct ifnet *); 1532void pfi_detach_ifnet(struct ifnet *); 1533struct pfi_kif *pfi_lookup_create(const char *); 1534struct pfi_kif *pfi_lookup_if(const char *); 1535int pfi_maybe_destroy(struct pfi_kif *); 1536struct pfi_kif *pfi_attach_rule(const char *); 1537void pfi_detach_rule(struct pfi_kif *); 1538void pfi_attach_state(struct pfi_kif *); 1539void pfi_detach_state(struct pfi_kif *); 1540int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1541void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1542void pfi_dynaddr_remove(struct pf_addr_wrap *); 1543void pfi_fill_oldstatus(struct pf_status *); 1544int pfi_clr_istats(const char *, int *, int); 1545int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1546int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1547 sa_family_t); 1548 1549extern struct pfi_statehead pfi_statehead; 1550 1551u_int16_t pf_tagname2tag(char *); 1552void pf_tag2tagname(u_int16_t, char *); 1553void pf_tag_unref(u_int16_t); 1554int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1555u_int32_t pf_qname2qid(char *); 1556void pf_qid2qname(u_int32_t, char *); 1557void pf_qid_unref(u_int32_t); 1558 1559extern struct pf_status pf_status; 1560 1561#ifdef __FreeBSD__ 1562extern uma_zone_t pf_frent_pl, pf_frag_pl; 1563#else 1564extern struct pool pf_frent_pl, pf_frag_pl; 1565#endif 1566 1567struct pf_pool_limit { 1568 void *pp; 1569 unsigned limit; 1570}; 1571extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1572 1573#ifdef __FreeBSD__ 1574struct pf_frent { 1575 LIST_ENTRY(pf_frent) fr_next; 1576 struct ip *fr_ip; 1577 struct mbuf *fr_m; 1578}; 1579 1580struct pf_frcache { 1581 LIST_ENTRY(pf_frcache) fr_next; 1582 uint16_t fr_off; 1583 uint16_t fr_end; 1584}; 1585 1586struct pf_fragment { 1587 RB_ENTRY(pf_fragment) fr_entry; 1588 TAILQ_ENTRY(pf_fragment) frag_next; 1589 struct in_addr fr_src; 1590 struct in_addr fr_dst; 1591 u_int8_t fr_p; /* protocol of this fragment */ 1592 u_int8_t fr_flags; /* status flags */ 1593 u_int16_t fr_id; /* fragment id for reassemble */ 1594 u_int16_t fr_max; /* fragment data max */ 1595 u_int32_t fr_timeout; 1596#define fr_queue fr_u.fru_queue 1597#define fr_cache fr_u.fru_cache 1598 union { 1599 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1600 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1601 } fr_u; 1602}; 1603#endif /* (__FreeBSD__) */ 1604 1605#endif /* _KERNEL */ 1606 1607/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1608int pf_osfp_add(struct pf_osfp_ioctl *); 1609#ifdef _KERNEL 1610struct pf_osfp_enlist * 1611 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1612 const struct tcphdr *); 1613#endif /* _KERNEL */ 1614struct pf_osfp_enlist * 1615 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1616void pf_osfp_flush(void); 1617int pf_osfp_get(struct pf_osfp_ioctl *); 1618#ifdef __FreeBSD__ 1619int pf_osfp_initialize(void); 1620void pf_osfp_cleanup(void); 1621#else 1622void pf_osfp_initialize(void); 1623#endif 1624int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1625struct pf_os_fingerprint * 1626 pf_osfp_validate(void); 1627 1628 1629#endif /* _NET_PFVAR_H_ */ 1630