pf.h revision 226655
1/* $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $ */ 2 3/* 4 * Copyright (c) 2001 Daniel Hartmeier 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33#ifndef _NET_PFVAR_H_ 34#define _NET_PFVAR_H_ 35 36#include <sys/param.h> 37#include <sys/types.h> 38#include <sys/queue.h> 39#include <sys/tree.h> 40#ifdef __FreeBSD__ 41#include <sys/lock.h> 42#include <sys/sx.h> 43#else 44#include <sys/rwlock.h> 45#endif 46 47#include <net/radix.h> 48#include <net/route.h> 49#ifdef __FreeBSD__ 50#include <net/if_clone.h> 51#include <net/pf_mtag.h> 52#include <vm/uma.h> 53#else 54#include <netinet/ip_ipsp.h> 55#endif 56 57#ifdef __FreeBSD__ 58#include <netinet/in.h> 59#endif 60 61#include <netinet/tcp_fsm.h> 62 63struct ip; 64struct ip6_hdr; 65#ifdef __FreeBSD__ 66struct inpcb; 67#endif 68 69#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 70#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 71 72#define PF_MD5_DIGEST_LENGTH 16 73#ifdef MD5_DIGEST_LENGTH 74#if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH 75#error 76#endif 77#endif 78 79enum { PF_INOUT, PF_IN, PF_OUT }; 80enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 81 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, PF_DEFER }; 82enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 83 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 84enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 85 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 86enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 87enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 88 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 89 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 90enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 91enum { PF_SK_WIRE, PF_SK_STACK, PF_SK_BOTH }; 92 93/* 94 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 95 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 96 */ 97enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 98 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 99 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 100 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 101 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 102 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 103 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 104 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED, 105 PFTM_UNTIL_PACKET }; 106 107/* PFTM default values */ 108#define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 109#define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 110#define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */ 111#define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */ 112#define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 113#define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 114#define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 115#define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 116#define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 117#define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 118#define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 119#define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 120#define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 121#define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 122#define PFTM_FRAG_VAL 30 /* Fragment expire */ 123#define PFTM_INTERVAL_VAL 10 /* Expire interval */ 124#define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 125#define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 126 127enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 128enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 129 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 130#define PF_POOL_IDMASK 0x0f 131enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 132 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 133enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 134 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 135 PF_ADDR_RANGE }; 136#define PF_POOL_TYPEMASK 0x0f 137#define PF_POOL_STICKYADDR 0x20 138#define PF_WSCALE_FLAG 0x80 139#define PF_WSCALE_MASK 0x0f 140 141#define PF_LOG 0x01 142#define PF_LOG_ALL 0x02 143#define PF_LOG_SOCKET_LOOKUP 0x04 144 145struct pf_addr { 146 union { 147 struct in_addr v4; 148 struct in6_addr v6; 149 u_int8_t addr8[16]; 150 u_int16_t addr16[8]; 151 u_int32_t addr32[4]; 152 } pfa; /* 128-bit address */ 153#define v4 pfa.v4 154#define v6 pfa.v6 155#define addr8 pfa.addr8 156#define addr16 pfa.addr16 157#define addr32 pfa.addr32 158}; 159 160#define PF_TABLE_NAME_SIZE 32 161 162#define PFI_AFLAG_NETWORK 0x01 163#define PFI_AFLAG_BROADCAST 0x02 164#define PFI_AFLAG_PEER 0x04 165#define PFI_AFLAG_MODEMASK 0x07 166#define PFI_AFLAG_NOALIAS 0x08 167 168struct pf_addr_wrap { 169 union { 170 struct { 171 struct pf_addr addr; 172 struct pf_addr mask; 173 } a; 174 char ifname[IFNAMSIZ]; 175 char tblname[PF_TABLE_NAME_SIZE]; 176#ifdef __FreeBSD__ 177#define RTLABEL_LEN 32 178#endif 179 char rtlabelname[RTLABEL_LEN]; 180 u_int32_t rtlabel; 181 } v; 182 union { 183 struct pfi_dynaddr *dyn; 184 struct pfr_ktable *tbl; 185 int dyncnt; 186 int tblcnt; 187 } p; 188 u_int8_t type; /* PF_ADDR_* */ 189 u_int8_t iflags; /* PFI_AFLAG_* */ 190}; 191 192#ifdef _KERNEL 193 194struct pfi_dynaddr { 195 TAILQ_ENTRY(pfi_dynaddr) entry; 196 struct pf_addr pfid_addr4; 197 struct pf_addr pfid_mask4; 198 struct pf_addr pfid_addr6; 199 struct pf_addr pfid_mask6; 200 struct pfr_ktable *pfid_kt; 201 struct pfi_kif *pfid_kif; 202 void *pfid_hook_cookie; 203 int pfid_net; /* mask or 128 */ 204 int pfid_acnt4; /* address count IPv4 */ 205 int pfid_acnt6; /* address count IPv6 */ 206 sa_family_t pfid_af; /* rule af */ 207 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 208}; 209 210/* 211 * Address manipulation macros 212 */ 213 214#ifdef __FreeBSD__ 215#define splsoftnet() splnet() 216 217#define HTONL(x) (x) = htonl((__uint32_t)(x)) 218#define HTONS(x) (x) = htons((__uint16_t)(x)) 219#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 220#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 221 222#define PF_NAME "pf" 223 224#define PR_NOWAIT M_NOWAIT 225#define PR_WAITOK M_WAITOK 226#define PR_ZERO M_ZERO 227#define pool_get(p, f) uma_zalloc(*(p), (f)) 228#define pool_put(p, o) uma_zfree(*(p), (o)) 229 230#define UMA_CREATE(var, type, desc) \ 231 var = uma_zcreate(desc, sizeof(type), \ 232 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 233 if (var == NULL) \ 234 break 235#define UMA_DESTROY(var) \ 236 if (var) \ 237 uma_zdestroy(var) 238 239#ifdef __FreeBSD__ 240extern struct mtx pf_task_mtx; 241 242#define PF_LOCK_ASSERT() mtx_assert(&pf_task_mtx, MA_OWNED) 243#define PF_UNLOCK_ASSERT() mtx_assert(&pf_task_mtx, MA_NOTOWNED) 244 245#define PF_LOCK() do { \ 246 PF_UNLOCK_ASSERT(); \ 247 mtx_lock(&pf_task_mtx); \ 248} while(0) 249#define PF_UNLOCK() do { \ 250 PF_LOCK_ASSERT(); \ 251 mtx_unlock(&pf_task_mtx); \ 252} while(0) 253#else 254#define PF_LOCK_ASSERT() 255#define PF_UNLOCK_ASSERT() 256#define PF_LOCK() 257#define PF_UNLOCK() 258#endif /* __FreeBSD__ */ 259 260#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 261 PF_UNLOCK(); \ 262 r = copyin((uaddr), (kaddr), (len)); \ 263 PF_LOCK(); \ 264} while(0) 265 266#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 267 PF_UNLOCK(); \ 268 r = copyout((kaddr), (uaddr), (len)); \ 269 PF_LOCK(); \ 270} while(0) 271 272#define PF_MODVER 1 273#define PFLOG_MODVER 1 274#define PFSYNC_MODVER 1 275 276#define PFLOG_MINVER 1 277#define PFLOG_PREFVER PFLOG_MODVER 278#define PFLOG_MAXVER 1 279#define PFSYNC_MINVER 1 280#define PFSYNC_PREFVER PFSYNC_MODVER 281#define PFSYNC_MAXVER 1 282#endif /* __FreeBSD__ */ 283#ifdef INET 284#ifndef INET6 285#define PF_INET_ONLY 286#endif /* ! INET6 */ 287#endif /* INET */ 288 289#ifdef INET6 290#ifndef INET 291#define PF_INET6_ONLY 292#endif /* ! INET */ 293#endif /* INET6 */ 294 295#ifdef INET 296#ifdef INET6 297#define PF_INET_INET6 298#endif /* INET6 */ 299#endif /* INET */ 300 301#else 302 303#define PF_INET_INET6 304 305#endif /* _KERNEL */ 306 307/* Both IPv4 and IPv6 */ 308#ifdef PF_INET_INET6 309 310#define PF_AEQ(a, b, c) \ 311 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 312 ((a)->addr32[3] == (b)->addr32[3] && \ 313 (a)->addr32[2] == (b)->addr32[2] && \ 314 (a)->addr32[1] == (b)->addr32[1] && \ 315 (a)->addr32[0] == (b)->addr32[0])) \ 316 317#define PF_ANEQ(a, b, c) \ 318 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 319 ((a)->addr32[3] != (b)->addr32[3] || \ 320 (a)->addr32[2] != (b)->addr32[2] || \ 321 (a)->addr32[1] != (b)->addr32[1] || \ 322 (a)->addr32[0] != (b)->addr32[0])) \ 323 324#define PF_AZERO(a, c) \ 325 ((c == AF_INET && !(a)->addr32[0]) || \ 326 (!(a)->addr32[0] && !(a)->addr32[1] && \ 327 !(a)->addr32[2] && !(a)->addr32[3] )) \ 328 329#define PF_MATCHA(n, a, m, b, f) \ 330 pf_match_addr(n, a, m, b, f) 331 332#define PF_ACPY(a, b, f) \ 333 pf_addrcpy(a, b, f) 334 335#define PF_AINC(a, f) \ 336 pf_addr_inc(a, f) 337 338#define PF_POOLMASK(a, b, c, d, f) \ 339 pf_poolmask(a, b, c, d, f) 340 341#else 342 343/* Just IPv6 */ 344 345#ifdef PF_INET6_ONLY 346 347#define PF_AEQ(a, b, c) \ 348 ((a)->addr32[3] == (b)->addr32[3] && \ 349 (a)->addr32[2] == (b)->addr32[2] && \ 350 (a)->addr32[1] == (b)->addr32[1] && \ 351 (a)->addr32[0] == (b)->addr32[0]) \ 352 353#define PF_ANEQ(a, b, c) \ 354 ((a)->addr32[3] != (b)->addr32[3] || \ 355 (a)->addr32[2] != (b)->addr32[2] || \ 356 (a)->addr32[1] != (b)->addr32[1] || \ 357 (a)->addr32[0] != (b)->addr32[0]) \ 358 359#define PF_AZERO(a, c) \ 360 (!(a)->addr32[0] && \ 361 !(a)->addr32[1] && \ 362 !(a)->addr32[2] && \ 363 !(a)->addr32[3] ) \ 364 365#define PF_MATCHA(n, a, m, b, f) \ 366 pf_match_addr(n, a, m, b, f) 367 368#define PF_ACPY(a, b, f) \ 369 pf_addrcpy(a, b, f) 370 371#define PF_AINC(a, f) \ 372 pf_addr_inc(a, f) 373 374#define PF_POOLMASK(a, b, c, d, f) \ 375 pf_poolmask(a, b, c, d, f) 376 377#else 378 379/* Just IPv4 */ 380#ifdef PF_INET_ONLY 381 382#define PF_AEQ(a, b, c) \ 383 ((a)->addr32[0] == (b)->addr32[0]) 384 385#define PF_ANEQ(a, b, c) \ 386 ((a)->addr32[0] != (b)->addr32[0]) 387 388#define PF_AZERO(a, c) \ 389 (!(a)->addr32[0]) 390 391#define PF_MATCHA(n, a, m, b, f) \ 392 pf_match_addr(n, a, m, b, f) 393 394#define PF_ACPY(a, b, f) \ 395 (a)->v4.s_addr = (b)->v4.s_addr 396 397#define PF_AINC(a, f) \ 398 do { \ 399 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 400 } while (0) 401 402#define PF_POOLMASK(a, b, c, d, f) \ 403 do { \ 404 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 405 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 406 } while (0) 407 408#endif /* PF_INET_ONLY */ 409#endif /* PF_INET6_ONLY */ 410#endif /* PF_INET_INET6 */ 411 412#define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 413 ( \ 414 (((aw)->type == PF_ADDR_NOROUTE && \ 415 pf_routable((x), (af), NULL)) || \ 416 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 417 pf_routable((x), (af), (ifp))) || \ 418 ((aw)->type == PF_ADDR_RTLABEL && \ 419 !pf_rtlabel_match((x), (af), (aw))) || \ 420 ((aw)->type == PF_ADDR_TABLE && \ 421 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 422 ((aw)->type == PF_ADDR_DYNIFTL && \ 423 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 424 ((aw)->type == PF_ADDR_RANGE && \ 425 !pf_match_addr_range(&(aw)->v.a.addr, \ 426 &(aw)->v.a.mask, (x), (af))) || \ 427 ((aw)->type == PF_ADDR_ADDRMASK && \ 428 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 429 !PF_MATCHA(0, &(aw)->v.a.addr, \ 430 &(aw)->v.a.mask, (x), (af))))) != \ 431 (neg) \ 432 ) 433 434 435struct pf_rule_uid { 436 uid_t uid[2]; 437 u_int8_t op; 438}; 439 440struct pf_rule_gid { 441 uid_t gid[2]; 442 u_int8_t op; 443}; 444 445struct pf_rule_addr { 446 struct pf_addr_wrap addr; 447 u_int16_t port[2]; 448 u_int8_t neg; 449 u_int8_t port_op; 450}; 451 452struct pf_pooladdr { 453 struct pf_addr_wrap addr; 454 TAILQ_ENTRY(pf_pooladdr) entries; 455 char ifname[IFNAMSIZ]; 456 struct pfi_kif *kif; 457}; 458 459TAILQ_HEAD(pf_palist, pf_pooladdr); 460 461struct pf_poolhashkey { 462 union { 463 u_int8_t key8[16]; 464 u_int16_t key16[8]; 465 u_int32_t key32[4]; 466 } pfk; /* 128-bit hash key */ 467#define key8 pfk.key8 468#define key16 pfk.key16 469#define key32 pfk.key32 470}; 471 472struct pf_pool { 473 struct pf_palist list; 474 struct pf_pooladdr *cur; 475 struct pf_poolhashkey key; 476 struct pf_addr counter; 477 int tblidx; 478 u_int16_t proxy_port[2]; 479 u_int8_t port_op; 480 u_int8_t opts; 481}; 482 483 484/* A packed Operating System description for fingerprinting */ 485typedef u_int32_t pf_osfp_t; 486#define PF_OSFP_ANY ((pf_osfp_t)0) 487#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 488#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 489 490struct pf_osfp_entry { 491 SLIST_ENTRY(pf_osfp_entry) fp_entry; 492 pf_osfp_t fp_os; 493 int fp_enflags; 494#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 495#define PF_OSFP_GENERIC 0x002 /* generic signature */ 496#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 497#define PF_OSFP_LEN 32 498 char fp_class_nm[PF_OSFP_LEN]; 499 char fp_version_nm[PF_OSFP_LEN]; 500 char fp_subtype_nm[PF_OSFP_LEN]; 501}; 502#define PF_OSFP_ENTRY_EQ(a, b) \ 503 ((a)->fp_os == (b)->fp_os && \ 504 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 505 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 506 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 507 508/* handle pf_osfp_t packing */ 509#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 510#define _FP_UNUSED_BITS 1 511#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 512#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 513#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 514#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 515 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 516 ((1 << _FP_CLASS_BITS) - 1); \ 517 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 518 ((1 << _FP_VERSION_BITS) - 1);\ 519 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 520} while(0) 521#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 522 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 523 + _FP_SUBTYPE_BITS); \ 524 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 525 _FP_SUBTYPE_BITS; \ 526 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 527} while(0) 528 529/* the fingerprint of an OSes TCP SYN packet */ 530typedef u_int64_t pf_tcpopts_t; 531struct pf_os_fingerprint { 532 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 533 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 534 u_int16_t fp_wsize; /* TCP window size */ 535 u_int16_t fp_psize; /* ip->ip_len */ 536 u_int16_t fp_mss; /* TCP MSS */ 537 u_int16_t fp_flags; 538#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 539#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 540#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 541#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 542#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 543#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 544#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 545#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 546#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 547#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 548#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 549#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 550#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 551#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 552#define PF_OSFP_INET6 0x4000 /* IPv6 */ 553 u_int8_t fp_optcnt; /* TCP option count */ 554 u_int8_t fp_wscale; /* TCP window scaling */ 555 u_int8_t fp_ttl; /* IPv4 TTL */ 556#define PF_OSFP_MAXTTL_OFFSET 40 557/* TCP options packing */ 558#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 559#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 560#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 561#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 562#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 563#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 564#define PF_OSFP_MAX_OPTS \ 565 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 566 / PF_OSFP_TCPOPT_BITS 567 568 SLIST_ENTRY(pf_os_fingerprint) fp_next; 569}; 570 571struct pf_osfp_ioctl { 572 struct pf_osfp_entry fp_os; 573 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 574 u_int16_t fp_wsize; /* TCP window size */ 575 u_int16_t fp_psize; /* ip->ip_len */ 576 u_int16_t fp_mss; /* TCP MSS */ 577 u_int16_t fp_flags; 578 u_int8_t fp_optcnt; /* TCP option count */ 579 u_int8_t fp_wscale; /* TCP window scaling */ 580 u_int8_t fp_ttl; /* IPv4 TTL */ 581 582 int fp_getnum; /* DIOCOSFPGET number */ 583}; 584 585 586union pf_rule_ptr { 587 struct pf_rule *ptr; 588 u_int32_t nr; 589}; 590 591#define PF_ANCHOR_NAME_SIZE 64 592 593struct pf_rule { 594 struct pf_rule_addr src; 595 struct pf_rule_addr dst; 596#define PF_SKIP_IFP 0 597#define PF_SKIP_DIR 1 598#define PF_SKIP_AF 2 599#define PF_SKIP_PROTO 3 600#define PF_SKIP_SRC_ADDR 4 601#define PF_SKIP_SRC_PORT 5 602#define PF_SKIP_DST_ADDR 6 603#define PF_SKIP_DST_PORT 7 604#define PF_SKIP_COUNT 8 605 union pf_rule_ptr skip[PF_SKIP_COUNT]; 606#define PF_RULE_LABEL_SIZE 64 607 char label[PF_RULE_LABEL_SIZE]; 608#define PF_QNAME_SIZE 64 609 char ifname[IFNAMSIZ]; 610 char qname[PF_QNAME_SIZE]; 611 char pqname[PF_QNAME_SIZE]; 612#define PF_TAG_NAME_SIZE 64 613 char tagname[PF_TAG_NAME_SIZE]; 614 char match_tagname[PF_TAG_NAME_SIZE]; 615 616 char overload_tblname[PF_TABLE_NAME_SIZE]; 617 618 TAILQ_ENTRY(pf_rule) entries; 619 struct pf_pool rpool; 620 621 u_int64_t evaluations; 622 u_int64_t packets[2]; 623 u_int64_t bytes[2]; 624 625 struct pfi_kif *kif; 626 struct pf_anchor *anchor; 627 struct pfr_ktable *overload_tbl; 628 629 pf_osfp_t os_fingerprint; 630 631 int rtableid; 632 u_int32_t timeout[PFTM_MAX]; 633 u_int32_t states_cur; 634 u_int32_t states_tot; 635 u_int32_t max_states; 636 u_int32_t src_nodes; 637 u_int32_t max_src_nodes; 638 u_int32_t max_src_states; 639 u_int32_t spare1; /* netgraph */ 640 u_int32_t max_src_conn; 641 struct { 642 u_int32_t limit; 643 u_int32_t seconds; 644 } max_src_conn_rate; 645 u_int32_t qid; 646 u_int32_t pqid; 647 u_int32_t rt_listid; 648 u_int32_t nr; 649 u_int32_t prob; 650 uid_t cuid; 651 pid_t cpid; 652 653 u_int16_t return_icmp; 654 u_int16_t return_icmp6; 655 u_int16_t max_mss; 656 u_int16_t tag; 657 u_int16_t match_tag; 658 u_int16_t spare2; /* netgraph */ 659 660 struct pf_rule_uid uid; 661 struct pf_rule_gid gid; 662 663 u_int32_t rule_flag; 664 u_int8_t action; 665 u_int8_t direction; 666 u_int8_t log; 667 u_int8_t logif; 668 u_int8_t quick; 669 u_int8_t ifnot; 670 u_int8_t match_tag_not; 671 u_int8_t natpass; 672 673#define PF_STATE_NORMAL 0x1 674#define PF_STATE_MODULATE 0x2 675#define PF_STATE_SYNPROXY 0x3 676 u_int8_t keep_state; 677 sa_family_t af; 678 u_int8_t proto; 679 u_int8_t type; 680 u_int8_t code; 681 u_int8_t flags; 682 u_int8_t flagset; 683 u_int8_t min_ttl; 684 u_int8_t allow_opts; 685 u_int8_t rt; 686 u_int8_t return_ttl; 687 u_int8_t tos; 688 u_int8_t set_tos; 689 u_int8_t anchor_relative; 690 u_int8_t anchor_wildcard; 691 692#define PF_FLUSH 0x01 693#define PF_FLUSH_GLOBAL 0x02 694 u_int8_t flush; 695 696 struct { 697 struct pf_addr addr; 698 u_int16_t port; 699 } divert; 700}; 701 702/* rule flags */ 703#define PFRULE_DROP 0x0000 704#define PFRULE_RETURNRST 0x0001 705#define PFRULE_FRAGMENT 0x0002 706#define PFRULE_RETURNICMP 0x0004 707#define PFRULE_RETURN 0x0008 708#define PFRULE_NOSYNC 0x0010 709#define PFRULE_SRCTRACK 0x0020 /* track source states */ 710#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 711 712/* scrub flags */ 713#define PFRULE_NODF 0x0100 714#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 715#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 716#define PFRULE_RANDOMID 0x0800 717#define PFRULE_REASSEMBLE_TCP 0x1000 718#define PFRULE_SET_TOS 0x2000 719 720/* rule flags again */ 721#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 722#define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */ 723#define PFRULE_PFLOW 0x00040000 724 725#define PFSTATE_HIWAT 10000 /* default state table size */ 726#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 727#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 728 729 730struct pf_threshold { 731 u_int32_t limit; 732#define PF_THRESHOLD_MULT 1000 733#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 734 u_int32_t seconds; 735 u_int32_t count; 736 u_int32_t last; 737}; 738 739struct pf_src_node { 740 RB_ENTRY(pf_src_node) entry; 741 struct pf_addr addr; 742 struct pf_addr raddr; 743 union pf_rule_ptr rule; 744 struct pfi_kif *kif; 745 u_int64_t bytes[2]; 746 u_int64_t packets[2]; 747 u_int32_t states; 748 u_int32_t conn; 749 struct pf_threshold conn_rate; 750 u_int32_t creation; 751 u_int32_t expire; 752 sa_family_t af; 753 u_int8_t ruletype; 754}; 755 756#define PFSNODE_HIWAT 10000 /* default source node table size */ 757 758struct pf_state_scrub { 759 struct timeval pfss_last; /* time received last packet */ 760 u_int32_t pfss_tsecr; /* last echoed timestamp */ 761 u_int32_t pfss_tsval; /* largest timestamp */ 762 u_int32_t pfss_tsval0; /* original timestamp */ 763 u_int16_t pfss_flags; 764#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 765#define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 766#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 767#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 768#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 769 u_int8_t pfss_ttl; /* stashed TTL */ 770 u_int8_t pad; 771 u_int32_t pfss_ts_mod; /* timestamp modulation */ 772}; 773 774struct pf_state_host { 775 struct pf_addr addr; 776 u_int16_t port; 777 u_int16_t pad; 778}; 779 780struct pf_state_peer { 781 struct pf_state_scrub *scrub; /* state is scrubbed */ 782 u_int32_t seqlo; /* Max sequence number sent */ 783 u_int32_t seqhi; /* Max the other end ACKd + win */ 784 u_int32_t seqdiff; /* Sequence number modulator */ 785 u_int16_t max_win; /* largest window (pre scaling) */ 786 u_int16_t mss; /* Maximum segment size option */ 787 u_int8_t state; /* active state level */ 788 u_int8_t wscale; /* window scaling factor */ 789 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 790 u_int8_t pad[1]; 791}; 792 793TAILQ_HEAD(pf_state_queue, pf_state); 794 795/* keep synced with struct pf_state_key, used in RB_FIND */ 796struct pf_state_key_cmp { 797 struct pf_addr addr[2]; 798 u_int16_t port[2]; 799 sa_family_t af; 800 u_int8_t proto; 801 u_int8_t pad[2]; 802}; 803 804struct pf_state_item { 805 TAILQ_ENTRY(pf_state_item) entry; 806 struct pf_state *s; 807}; 808 809TAILQ_HEAD(pf_statelisthead, pf_state_item); 810 811struct pf_state_key { 812 struct pf_addr addr[2]; 813 u_int16_t port[2]; 814 sa_family_t af; 815 u_int8_t proto; 816 u_int8_t pad[2]; 817 818 RB_ENTRY(pf_state_key) entry; 819 struct pf_statelisthead states; 820 struct pf_state_key *reverse; 821 struct inpcb *inp; 822}; 823 824/* keep synced with struct pf_state, used in RB_FIND */ 825struct pf_state_cmp { 826 u_int64_t id; 827 u_int32_t creatorid; 828 u_int8_t direction; 829 u_int8_t pad[3]; 830}; 831 832struct pf_state { 833 u_int64_t id; 834 u_int32_t creatorid; 835 u_int8_t direction; 836#ifdef __FreeBSD__ 837 u_int8_t pad[2]; 838 u_int8_t local_flags; 839#define PFSTATE_EXPIRING 0x01 840#else 841 u_int8_t pad[3]; 842#endif 843 844 TAILQ_ENTRY(pf_state) sync_list; 845 TAILQ_ENTRY(pf_state) entry_list; 846 RB_ENTRY(pf_state) entry_id; 847 struct pf_state_peer src; 848 struct pf_state_peer dst; 849 union pf_rule_ptr rule; 850 union pf_rule_ptr anchor; 851 union pf_rule_ptr nat_rule; 852 struct pf_addr rt_addr; 853 struct pf_state_key *key[2]; /* addresses stack and wire */ 854 struct pfi_kif *kif; 855 struct pfi_kif *rt_kif; 856 struct pf_src_node *src_node; 857 struct pf_src_node *nat_src_node; 858 u_int64_t packets[2]; 859 u_int64_t bytes[2]; 860 u_int32_t creation; 861 u_int32_t expire; 862 u_int32_t pfsync_time; 863 u_int16_t tag; 864 u_int8_t log; 865 u_int8_t state_flags; 866#define PFSTATE_ALLOWOPTS 0x01 867#define PFSTATE_SLOPPY 0x02 868#define PFSTATE_PFLOW 0x04 869#define PFSTATE_NOSYNC 0x08 870#define PFSTATE_ACK 0x10 871 u_int8_t timeout; 872 u_int8_t sync_state; /* PFSYNC_S_x */ 873 874 /* XXX */ 875 u_int8_t sync_updates; 876 u_int8_t _tail[3]; 877}; 878 879/* 880 * Unified state structures for pulling states out of the kernel 881 * used by pfsync(4) and the pf(4) ioctl. 882 */ 883struct pfsync_state_scrub { 884 u_int16_t pfss_flags; 885 u_int8_t pfss_ttl; /* stashed TTL */ 886#define PFSYNC_SCRUB_FLAG_VALID 0x01 887 u_int8_t scrub_flag; 888 u_int32_t pfss_ts_mod; /* timestamp modulation */ 889} __packed; 890 891struct pfsync_state_peer { 892 struct pfsync_state_scrub scrub; /* state is scrubbed */ 893 u_int32_t seqlo; /* Max sequence number sent */ 894 u_int32_t seqhi; /* Max the other end ACKd + win */ 895 u_int32_t seqdiff; /* Sequence number modulator */ 896 u_int16_t max_win; /* largest window (pre scaling) */ 897 u_int16_t mss; /* Maximum segment size option */ 898 u_int8_t state; /* active state level */ 899 u_int8_t wscale; /* window scaling factor */ 900 u_int8_t pad[6]; 901} __packed; 902 903struct pfsync_state_key { 904 struct pf_addr addr[2]; 905 u_int16_t port[2]; 906}; 907 908struct pfsync_state { 909 u_int32_t id[2]; 910 char ifname[IFNAMSIZ]; 911 struct pfsync_state_key key[2]; 912 struct pfsync_state_peer src; 913 struct pfsync_state_peer dst; 914 struct pf_addr rt_addr; 915 u_int32_t rule; 916 u_int32_t anchor; 917 u_int32_t nat_rule; 918 u_int32_t creation; 919 u_int32_t expire; 920 u_int32_t packets[2][2]; 921 u_int32_t bytes[2][2]; 922 u_int32_t creatorid; 923 sa_family_t af; 924 u_int8_t proto; 925 u_int8_t direction; 926#ifdef __FreeBSD__ 927 u_int8_t local_flags; 928#define PFSTATE_EXPIRING 0x01 929 u_int8_t pad; 930#endif 931 u_int8_t log; 932 u_int8_t state_flags; 933 u_int8_t timeout; 934 u_int8_t sync_flags; 935 u_int8_t updates; 936} __packed; 937 938#ifdef __FreeBSD__ 939#ifdef _KERNEL 940/* pfsync */ 941typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 942typedef void pfsync_insert_state_t(struct pf_state *); 943typedef void pfsync_update_state_t(struct pf_state *); 944typedef void pfsync_delete_state_t(struct pf_state *); 945typedef void pfsync_clear_states_t(u_int32_t, const char *); 946typedef int pfsync_state_in_use_t(struct pf_state *); 947typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 948typedef int pfsync_up_t(void); 949 950extern pfsync_state_import_t *pfsync_state_import_ptr; 951extern pfsync_insert_state_t *pfsync_insert_state_ptr; 952extern pfsync_update_state_t *pfsync_update_state_ptr; 953extern pfsync_delete_state_t *pfsync_delete_state_ptr; 954extern pfsync_clear_states_t *pfsync_clear_states_ptr; 955extern pfsync_state_in_use_t *pfsync_state_in_use_ptr; 956extern pfsync_defer_t *pfsync_defer_ptr; 957extern pfsync_up_t *pfsync_up_ptr; 958 959void pfsync_state_export(struct pfsync_state *, 960 struct pf_state *); 961 962/* pflow */ 963typedef int export_pflow_t(struct pf_state *); 964 965extern export_pflow_t *export_pflow_ptr; 966 967/* pflog */ 968struct pf_ruleset; 969struct pf_pdesc; 970typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t, 971 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 972 struct pf_ruleset *, struct pf_pdesc *); 973 974extern pflog_packet_t *pflog_packet_ptr; 975 976/* pf uid hack */ 977VNET_DECLARE(int, debug_pfugidhack); 978#define V_debug_pfugidhack VNET(debug_pfugidhack) 979 980#define V_pf_end_threads VNET(pf_end_threads) 981#endif 982 983/* Macros to set/clear/test flags. */ 984#ifdef _KERNEL 985#define SET(t, f) ((t) |= (f)) 986#define CLR(t, f) ((t) &= ~(f)) 987#define ISSET(t, f) ((t) & (f)) 988#endif 989#endif 990 991#define PFSYNC_FLAG_SRCNODE 0x04 992#define PFSYNC_FLAG_NATSRCNODE 0x08 993 994/* for copies to/from network byte order */ 995/* ioctl interface also uses network byte order */ 996#define pf_state_peer_hton(s,d) do { \ 997 (d)->seqlo = htonl((s)->seqlo); \ 998 (d)->seqhi = htonl((s)->seqhi); \ 999 (d)->seqdiff = htonl((s)->seqdiff); \ 1000 (d)->max_win = htons((s)->max_win); \ 1001 (d)->mss = htons((s)->mss); \ 1002 (d)->state = (s)->state; \ 1003 (d)->wscale = (s)->wscale; \ 1004 if ((s)->scrub) { \ 1005 (d)->scrub.pfss_flags = \ 1006 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 1007 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1008 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 1009 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1010 } \ 1011} while (0) 1012 1013#define pf_state_peer_ntoh(s,d) do { \ 1014 (d)->seqlo = ntohl((s)->seqlo); \ 1015 (d)->seqhi = ntohl((s)->seqhi); \ 1016 (d)->seqdiff = ntohl((s)->seqdiff); \ 1017 (d)->max_win = ntohs((s)->max_win); \ 1018 (d)->mss = ntohs((s)->mss); \ 1019 (d)->state = (s)->state; \ 1020 (d)->wscale = (s)->wscale; \ 1021 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1022 (d)->scrub != NULL) { \ 1023 (d)->scrub->pfss_flags = \ 1024 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1025 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1026 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1027 } \ 1028} while (0) 1029 1030#define pf_state_counter_hton(s,d) do { \ 1031 d[0] = htonl((s>>32)&0xffffffff); \ 1032 d[1] = htonl(s&0xffffffff); \ 1033} while (0) 1034 1035#define pf_state_counter_from_pfsync(s) \ 1036 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1037 1038#define pf_state_counter_ntoh(s,d) do { \ 1039 d = ntohl(s[0]); \ 1040 d = d<<32; \ 1041 d += ntohl(s[1]); \ 1042} while (0) 1043 1044TAILQ_HEAD(pf_rulequeue, pf_rule); 1045 1046struct pf_anchor; 1047 1048struct pf_ruleset { 1049 struct { 1050 struct pf_rulequeue queues[2]; 1051 struct { 1052 struct pf_rulequeue *ptr; 1053 struct pf_rule **ptr_array; 1054 u_int32_t rcount; 1055 u_int32_t ticket; 1056 int open; 1057 } active, inactive; 1058 } rules[PF_RULESET_MAX]; 1059 struct pf_anchor *anchor; 1060 u_int32_t tticket; 1061 int tables; 1062 int topen; 1063}; 1064 1065RB_HEAD(pf_anchor_global, pf_anchor); 1066RB_HEAD(pf_anchor_node, pf_anchor); 1067struct pf_anchor { 1068 RB_ENTRY(pf_anchor) entry_global; 1069 RB_ENTRY(pf_anchor) entry_node; 1070 struct pf_anchor *parent; 1071 struct pf_anchor_node children; 1072 char name[PF_ANCHOR_NAME_SIZE]; 1073 char path[MAXPATHLEN]; 1074 struct pf_ruleset ruleset; 1075 int refcnt; /* anchor rules */ 1076 int match; 1077}; 1078RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1079RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1080 1081#define PF_RESERVED_ANCHOR "_pf" 1082 1083#define PFR_TFLAG_PERSIST 0x00000001 1084#define PFR_TFLAG_CONST 0x00000002 1085#define PFR_TFLAG_ACTIVE 0x00000004 1086#define PFR_TFLAG_INACTIVE 0x00000008 1087#define PFR_TFLAG_REFERENCED 0x00000010 1088#define PFR_TFLAG_REFDANCHOR 0x00000020 1089#define PFR_TFLAG_COUNTERS 0x00000040 1090/* Adjust masks below when adding flags. */ 1091#define PFR_TFLAG_USRMASK 0x00000043 1092#define PFR_TFLAG_SETMASK 0x0000003C 1093#define PFR_TFLAG_ALLMASK 0x0000007F 1094 1095struct pfr_table { 1096 char pfrt_anchor[MAXPATHLEN]; 1097 char pfrt_name[PF_TABLE_NAME_SIZE]; 1098 u_int32_t pfrt_flags; 1099 u_int8_t pfrt_fback; 1100}; 1101 1102enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1103 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1104 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1105 1106struct pfr_addr { 1107 union { 1108 struct in_addr _pfra_ip4addr; 1109 struct in6_addr _pfra_ip6addr; 1110 } pfra_u; 1111 u_int8_t pfra_af; 1112 u_int8_t pfra_net; 1113 u_int8_t pfra_not; 1114 u_int8_t pfra_fback; 1115}; 1116#define pfra_ip4addr pfra_u._pfra_ip4addr 1117#define pfra_ip6addr pfra_u._pfra_ip6addr 1118 1119enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1120enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1121#define PFR_OP_XPASS PFR_OP_ADDR_MAX 1122 1123struct pfr_astats { 1124 struct pfr_addr pfras_a; 1125 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1126 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1127 long pfras_tzero; 1128}; 1129 1130enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1131 1132struct pfr_tstats { 1133 struct pfr_table pfrts_t; 1134 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1135 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1136 u_int64_t pfrts_match; 1137 u_int64_t pfrts_nomatch; 1138 long pfrts_tzero; 1139 int pfrts_cnt; 1140 int pfrts_refcnt[PFR_REFCNT_MAX]; 1141}; 1142#define pfrts_name pfrts_t.pfrt_name 1143#define pfrts_flags pfrts_t.pfrt_flags 1144 1145#ifndef _SOCKADDR_UNION_DEFINED 1146#define _SOCKADDR_UNION_DEFINED 1147union sockaddr_union { 1148 struct sockaddr sa; 1149 struct sockaddr_in sin; 1150 struct sockaddr_in6 sin6; 1151}; 1152#endif /* _SOCKADDR_UNION_DEFINED */ 1153 1154struct pfr_kcounters { 1155 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1156 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1157}; 1158 1159SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1160struct pfr_kentry { 1161 struct radix_node pfrke_node[2]; 1162 union sockaddr_union pfrke_sa; 1163 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1164 union { 1165 1166 struct pfr_kcounters *pfrke_counters; 1167#if 0 1168 struct pfr_kroute *pfrke_route; 1169#endif 1170 } u; 1171 long pfrke_tzero; 1172 u_int8_t pfrke_af; 1173 u_int8_t pfrke_net; 1174 u_int8_t pfrke_not; 1175 u_int8_t pfrke_mark; 1176}; 1177#define pfrke_counters u.pfrke_counters 1178#define pfrke_route u.pfrke_route 1179 1180 1181SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1182RB_HEAD(pfr_ktablehead, pfr_ktable); 1183struct pfr_ktable { 1184 struct pfr_tstats pfrkt_ts; 1185 RB_ENTRY(pfr_ktable) pfrkt_tree; 1186 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1187 struct radix_node_head *pfrkt_ip4; 1188 struct radix_node_head *pfrkt_ip6; 1189 struct pfr_ktable *pfrkt_shadow; 1190 struct pfr_ktable *pfrkt_root; 1191 struct pf_ruleset *pfrkt_rs; 1192 long pfrkt_larg; 1193 int pfrkt_nflags; 1194}; 1195#define pfrkt_t pfrkt_ts.pfrts_t 1196#define pfrkt_name pfrkt_t.pfrt_name 1197#define pfrkt_anchor pfrkt_t.pfrt_anchor 1198#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1199#define pfrkt_flags pfrkt_t.pfrt_flags 1200#define pfrkt_cnt pfrkt_ts.pfrts_cnt 1201#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1202#define pfrkt_packets pfrkt_ts.pfrts_packets 1203#define pfrkt_bytes pfrkt_ts.pfrts_bytes 1204#define pfrkt_match pfrkt_ts.pfrts_match 1205#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1206#define pfrkt_tzero pfrkt_ts.pfrts_tzero 1207 1208RB_HEAD(pf_state_tree, pf_state_key); 1209RB_PROTOTYPE(pf_state_tree, pf_state_key, entry, pf_state_compare_key); 1210 1211RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1212RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key, 1213 entry_ext_gwy, pf_state_compare_ext_gwy); 1214 1215RB_HEAD(pfi_ifhead, pfi_kif); 1216 1217/* state tables */ 1218#ifdef __FreeBSD__ 1219#ifdef _KERNEL 1220VNET_DECLARE(struct pf_state_tree, pf_statetbl); 1221#define V_pf_statetbl VNET(pf_statetbl) 1222#endif 1223#else 1224extern struct pf_state_tree pf_statetbl; 1225#endif 1226 1227/* keep synced with pfi_kif, used in RB_FIND */ 1228struct pfi_kif_cmp { 1229 char pfik_name[IFNAMSIZ]; 1230}; 1231 1232struct pfi_kif { 1233 char pfik_name[IFNAMSIZ]; 1234 RB_ENTRY(pfi_kif) pfik_tree; 1235 u_int64_t pfik_packets[2][2][2]; 1236 u_int64_t pfik_bytes[2][2][2]; 1237 u_int32_t pfik_tzero; 1238 int pfik_flags; 1239 void *pfik_ah_cookie; 1240 struct ifnet *pfik_ifp; 1241 struct ifg_group *pfik_group; 1242 int pfik_states; 1243 int pfik_rules; 1244 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1245}; 1246 1247enum pfi_kif_refs { 1248 PFI_KIF_REF_NONE, 1249 PFI_KIF_REF_STATE, 1250 PFI_KIF_REF_RULE 1251}; 1252 1253#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1254 1255struct pf_pdesc { 1256 struct { 1257 int done; 1258 uid_t uid; 1259 gid_t gid; 1260 pid_t pid; 1261 } lookup; 1262 u_int64_t tot_len; /* Make Mickey money */ 1263 union { 1264 struct tcphdr *tcp; 1265 struct udphdr *udp; 1266 struct icmp *icmp; 1267#ifdef INET6 1268 struct icmp6_hdr *icmp6; 1269#endif /* INET6 */ 1270 void *any; 1271 } hdr; 1272 1273 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1274 struct ether_header 1275 *eh; 1276 struct pf_addr *src; /* src address */ 1277 struct pf_addr *dst; /* dst address */ 1278 u_int16_t *sport; 1279 u_int16_t *dport; 1280#ifdef __FreeBSD__ 1281 struct pf_mtag *pf_mtag; 1282#endif 1283 1284 u_int32_t p_len; /* total length of payload */ 1285 1286 u_int16_t *ip_sum; 1287 u_int16_t *proto_sum; 1288 u_int16_t flags; /* Let SCRUB trigger behavior in 1289 * state code. Easier than tags */ 1290#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1291#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1292 sa_family_t af; 1293 u_int8_t proto; 1294 u_int8_t tos; 1295 u_int8_t dir; /* direction */ 1296 u_int8_t sidx; /* key index for source */ 1297 u_int8_t didx; /* key index for destination */ 1298}; 1299 1300/* flags for RDR options */ 1301#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1302#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1303 1304/* Reasons code for passing/dropping a packet */ 1305#define PFRES_MATCH 0 /* Explicit match of a rule */ 1306#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1307#define PFRES_FRAG 2 /* Dropping following fragment */ 1308#define PFRES_SHORT 3 /* Dropping short packet */ 1309#define PFRES_NORM 4 /* Dropping by normalizer */ 1310#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1311#define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1312#define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1313#define PFRES_IPOPTIONS 8 /* IP option */ 1314#define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1315#define PFRES_BADSTATE 10 /* State mismatch */ 1316#define PFRES_STATEINS 11 /* State insertion failure */ 1317#define PFRES_MAXSTATES 12 /* State limit */ 1318#define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1319#define PFRES_SYNPROXY 14 /* SYN proxy */ 1320#define PFRES_MAX 15 /* total+1 */ 1321 1322#define PFRES_NAMES { \ 1323 "match", \ 1324 "bad-offset", \ 1325 "fragment", \ 1326 "short", \ 1327 "normalize", \ 1328 "memory", \ 1329 "bad-timestamp", \ 1330 "congestion", \ 1331 "ip-option", \ 1332 "proto-cksum", \ 1333 "state-mismatch", \ 1334 "state-insert", \ 1335 "state-limit", \ 1336 "src-limit", \ 1337 "synproxy", \ 1338 NULL \ 1339} 1340 1341/* Counters for other things we want to keep track of */ 1342#define LCNT_STATES 0 /* states */ 1343#define LCNT_SRCSTATES 1 /* max-src-states */ 1344#define LCNT_SRCNODES 2 /* max-src-nodes */ 1345#define LCNT_SRCCONN 3 /* max-src-conn */ 1346#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1347#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1348#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1349#define LCNT_MAX 7 /* total+1 */ 1350 1351#define LCNT_NAMES { \ 1352 "max states per rule", \ 1353 "max-src-states", \ 1354 "max-src-nodes", \ 1355 "max-src-conn", \ 1356 "max-src-conn-rate", \ 1357 "overload table insertion", \ 1358 "overload flush states", \ 1359 NULL \ 1360} 1361 1362/* UDP state enumeration */ 1363#define PFUDPS_NO_TRAFFIC 0 1364#define PFUDPS_SINGLE 1 1365#define PFUDPS_MULTIPLE 2 1366 1367#define PFUDPS_NSTATES 3 /* number of state levels */ 1368 1369#define PFUDPS_NAMES { \ 1370 "NO_TRAFFIC", \ 1371 "SINGLE", \ 1372 "MULTIPLE", \ 1373 NULL \ 1374} 1375 1376/* Other protocol state enumeration */ 1377#define PFOTHERS_NO_TRAFFIC 0 1378#define PFOTHERS_SINGLE 1 1379#define PFOTHERS_MULTIPLE 2 1380 1381#define PFOTHERS_NSTATES 3 /* number of state levels */ 1382 1383#define PFOTHERS_NAMES { \ 1384 "NO_TRAFFIC", \ 1385 "SINGLE", \ 1386 "MULTIPLE", \ 1387 NULL \ 1388} 1389 1390#define FCNT_STATE_SEARCH 0 1391#define FCNT_STATE_INSERT 1 1392#define FCNT_STATE_REMOVALS 2 1393#define FCNT_MAX 3 1394 1395#define SCNT_SRC_NODE_SEARCH 0 1396#define SCNT_SRC_NODE_INSERT 1 1397#define SCNT_SRC_NODE_REMOVALS 2 1398#define SCNT_MAX 3 1399 1400#define ACTION_SET(a, x) \ 1401 do { \ 1402 if ((a) != NULL) \ 1403 *(a) = (x); \ 1404 } while (0) 1405 1406#ifdef __FreeBSD__ 1407#define REASON_SET(a, x) \ 1408 do { \ 1409 if ((a) != NULL) \ 1410 *(a) = (x); \ 1411 if (x < PFRES_MAX) \ 1412 V_pf_status.counters[x]++; \ 1413 } while (0) 1414#else 1415#define REASON_SET(a, x) \ 1416 do { \ 1417 if ((a) != NULL) \ 1418 *(a) = (x); \ 1419 if (x < PFRES_MAX) \ 1420 pf_status.counters[x]++; \ 1421 } while (0) 1422#endif 1423 1424struct pf_status { 1425 u_int64_t counters[PFRES_MAX]; 1426 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1427 u_int64_t fcounters[FCNT_MAX]; 1428 u_int64_t scounters[SCNT_MAX]; 1429 u_int64_t pcounters[2][2][3]; 1430 u_int64_t bcounters[2][2]; 1431 u_int64_t stateid; 1432 u_int32_t running; 1433 u_int32_t states; 1434 u_int32_t src_nodes; 1435 u_int32_t since; 1436 u_int32_t debug; 1437 u_int32_t hostid; 1438 char ifname[IFNAMSIZ]; 1439 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1440}; 1441 1442struct cbq_opts { 1443 u_int minburst; 1444 u_int maxburst; 1445 u_int pktsize; 1446 u_int maxpktsize; 1447 u_int ns_per_byte; 1448 u_int maxidle; 1449 int minidle; 1450 u_int offtime; 1451 int flags; 1452}; 1453 1454struct priq_opts { 1455 int flags; 1456}; 1457 1458struct hfsc_opts { 1459 /* real-time service curve */ 1460 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1461 u_int rtsc_d; /* the x-projection of m1 in msec */ 1462 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1463 /* link-sharing service curve */ 1464 u_int lssc_m1; 1465 u_int lssc_d; 1466 u_int lssc_m2; 1467 /* upper-limit service curve */ 1468 u_int ulsc_m1; 1469 u_int ulsc_d; 1470 u_int ulsc_m2; 1471 int flags; 1472}; 1473 1474struct pf_altq { 1475 char ifname[IFNAMSIZ]; 1476 1477 void *altq_disc; /* discipline-specific state */ 1478 TAILQ_ENTRY(pf_altq) entries; 1479 1480 /* scheduler spec */ 1481 u_int8_t scheduler; /* scheduler type */ 1482 u_int16_t tbrsize; /* tokenbucket regulator size */ 1483 u_int32_t ifbandwidth; /* interface bandwidth */ 1484 1485 /* queue spec */ 1486 char qname[PF_QNAME_SIZE]; /* queue name */ 1487 char parent[PF_QNAME_SIZE]; /* parent name */ 1488 u_int32_t parent_qid; /* parent queue id */ 1489 u_int32_t bandwidth; /* queue bandwidth */ 1490 u_int8_t priority; /* priority */ 1491#ifdef __FreeBSD__ 1492 u_int8_t local_flags; /* dynamic interface */ 1493#define PFALTQ_FLAG_IF_REMOVED 0x01 1494#endif 1495 u_int16_t qlimit; /* queue size limit */ 1496 u_int16_t flags; /* misc flags */ 1497 union { 1498 struct cbq_opts cbq_opts; 1499 struct priq_opts priq_opts; 1500 struct hfsc_opts hfsc_opts; 1501 } pq_u; 1502 1503 u_int32_t qid; /* return value */ 1504}; 1505 1506struct pf_tagname { 1507 TAILQ_ENTRY(pf_tagname) entries; 1508 char name[PF_TAG_NAME_SIZE]; 1509 u_int16_t tag; 1510 int ref; 1511}; 1512 1513struct pf_divert { 1514 union { 1515 struct in_addr ipv4; 1516 struct in6_addr ipv6; 1517 } addr; 1518 u_int16_t port; 1519}; 1520 1521#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1522#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1523#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1524#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1525 1526#define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1527#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1528#define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1529 1530/* 1531 * ioctl parameter structures 1532 */ 1533 1534struct pfioc_pooladdr { 1535 u_int32_t action; 1536 u_int32_t ticket; 1537 u_int32_t nr; 1538 u_int32_t r_num; 1539 u_int8_t r_action; 1540 u_int8_t r_last; 1541 u_int8_t af; 1542 char anchor[MAXPATHLEN]; 1543 struct pf_pooladdr addr; 1544}; 1545 1546struct pfioc_rule { 1547 u_int32_t action; 1548 u_int32_t ticket; 1549 u_int32_t pool_ticket; 1550 u_int32_t nr; 1551 char anchor[MAXPATHLEN]; 1552 char anchor_call[MAXPATHLEN]; 1553 struct pf_rule rule; 1554}; 1555 1556struct pfioc_natlook { 1557 struct pf_addr saddr; 1558 struct pf_addr daddr; 1559 struct pf_addr rsaddr; 1560 struct pf_addr rdaddr; 1561 u_int16_t sport; 1562 u_int16_t dport; 1563 u_int16_t rsport; 1564 u_int16_t rdport; 1565 sa_family_t af; 1566 u_int8_t proto; 1567 u_int8_t direction; 1568}; 1569 1570struct pfioc_state { 1571 struct pfsync_state state; 1572}; 1573 1574struct pfioc_src_node_kill { 1575 sa_family_t psnk_af; 1576 struct pf_rule_addr psnk_src; 1577 struct pf_rule_addr psnk_dst; 1578 u_int psnk_killed; 1579}; 1580 1581struct pfioc_state_kill { 1582 struct pf_state_cmp psk_pfcmp; 1583 sa_family_t psk_af; 1584 int psk_proto; 1585 struct pf_rule_addr psk_src; 1586 struct pf_rule_addr psk_dst; 1587 char psk_ifname[IFNAMSIZ]; 1588 char psk_label[PF_RULE_LABEL_SIZE]; 1589 u_int psk_killed; 1590}; 1591 1592struct pfioc_states { 1593 int ps_len; 1594 union { 1595 caddr_t psu_buf; 1596 struct pfsync_state *psu_states; 1597 } ps_u; 1598#define ps_buf ps_u.psu_buf 1599#define ps_states ps_u.psu_states 1600}; 1601 1602struct pfioc_src_nodes { 1603 int psn_len; 1604 union { 1605 caddr_t psu_buf; 1606 struct pf_src_node *psu_src_nodes; 1607 } psn_u; 1608#define psn_buf psn_u.psu_buf 1609#define psn_src_nodes psn_u.psu_src_nodes 1610}; 1611 1612struct pfioc_if { 1613 char ifname[IFNAMSIZ]; 1614}; 1615 1616struct pfioc_tm { 1617 int timeout; 1618 int seconds; 1619}; 1620 1621struct pfioc_limit { 1622 int index; 1623 unsigned limit; 1624}; 1625 1626struct pfioc_altq { 1627 u_int32_t action; 1628 u_int32_t ticket; 1629 u_int32_t nr; 1630 struct pf_altq altq; 1631}; 1632 1633struct pfioc_qstats { 1634 u_int32_t ticket; 1635 u_int32_t nr; 1636 void *buf; 1637 int nbytes; 1638 u_int8_t scheduler; 1639}; 1640 1641struct pfioc_ruleset { 1642 u_int32_t nr; 1643 char path[MAXPATHLEN]; 1644 char name[PF_ANCHOR_NAME_SIZE]; 1645}; 1646 1647#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1648#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1649struct pfioc_trans { 1650 int size; /* number of elements */ 1651 int esize; /* size of each element in bytes */ 1652 struct pfioc_trans_e { 1653 int rs_num; 1654 char anchor[MAXPATHLEN]; 1655 u_int32_t ticket; 1656 } *array; 1657}; 1658 1659#define PFR_FLAG_ATOMIC 0x00000001 1660#define PFR_FLAG_DUMMY 0x00000002 1661#define PFR_FLAG_FEEDBACK 0x00000004 1662#define PFR_FLAG_CLSTATS 0x00000008 1663#define PFR_FLAG_ADDRSTOO 0x00000010 1664#define PFR_FLAG_REPLACE 0x00000020 1665#define PFR_FLAG_ALLRSETS 0x00000040 1666#define PFR_FLAG_ALLMASK 0x0000007F 1667#ifdef _KERNEL 1668#define PFR_FLAG_USERIOCTL 0x10000000 1669#endif 1670 1671struct pfioc_table { 1672 struct pfr_table pfrio_table; 1673 void *pfrio_buffer; 1674 int pfrio_esize; 1675 int pfrio_size; 1676 int pfrio_size2; 1677 int pfrio_nadd; 1678 int pfrio_ndel; 1679 int pfrio_nchange; 1680 int pfrio_flags; 1681 u_int32_t pfrio_ticket; 1682}; 1683#define pfrio_exists pfrio_nadd 1684#define pfrio_nzero pfrio_nadd 1685#define pfrio_nmatch pfrio_nadd 1686#define pfrio_naddr pfrio_size2 1687#define pfrio_setflag pfrio_size2 1688#define pfrio_clrflag pfrio_nadd 1689 1690struct pfioc_iface { 1691 char pfiio_name[IFNAMSIZ]; 1692 void *pfiio_buffer; 1693 int pfiio_esize; 1694 int pfiio_size; 1695 int pfiio_nzero; 1696 int pfiio_flags; 1697}; 1698 1699 1700/* 1701 * ioctl operations 1702 */ 1703 1704#define DIOCSTART _IO ('D', 1) 1705#define DIOCSTOP _IO ('D', 2) 1706#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1707#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1708#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1709/* XXX cut 8 - 17 */ 1710#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1711#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1712#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1713#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1714#define DIOCCLRSTATUS _IO ('D', 22) 1715#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1716#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1717#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1718#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1719/* XXX cut 26 - 28 */ 1720#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1721#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1722#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1723#define DIOCCLRRULECTRS _IO ('D', 38) 1724#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1725#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1726#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1727#define DIOCSTARTALTQ _IO ('D', 42) 1728#define DIOCSTOPALTQ _IO ('D', 43) 1729#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1730#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1731#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1732#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1733#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1734#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1735#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1736#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1737#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1738#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1739/* XXX cut 55 - 57 */ 1740#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1741#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1742#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1743#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1744#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1745#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1746#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1747#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1748#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1749#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1750#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1751#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1752#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1753#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1754#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1755#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1756#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1757#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1758#define DIOCOSFPFLUSH _IO('D', 78) 1759#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1760#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1761#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1762#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1763#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1764#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1765#define DIOCCLRSRCNODES _IO('D', 85) 1766#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1767#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1768#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1769#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1770#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1771#ifdef __FreeBSD__ 1772struct pf_ifspeed { 1773 char ifname[IFNAMSIZ]; 1774 u_int32_t baudrate; 1775}; 1776#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 1777#endif 1778 1779#ifdef _KERNEL 1780RB_HEAD(pf_src_tree, pf_src_node); 1781RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1782#ifdef __FreeBSD__ 1783VNET_DECLARE(struct pf_src_tree, tree_src_tracking); 1784#define V_tree_src_tracking VNET(tree_src_tracking) 1785#else 1786extern struct pf_src_tree tree_src_tracking; 1787#endif 1788 1789RB_HEAD(pf_state_tree_id, pf_state); 1790RB_PROTOTYPE(pf_state_tree_id, pf_state, 1791 entry_id, pf_state_compare_id); 1792#ifdef __FreeBSD__ 1793VNET_DECLARE(struct pf_state_tree_id, tree_id); 1794#define V_tree_id VNET(tree_id) 1795VNET_DECLARE(struct pf_state_queue, state_list); 1796#define V_state_list VNET(state_list) 1797#else 1798extern struct pf_state_tree_id tree_id; 1799extern struct pf_state_queue state_list; 1800#endif 1801 1802TAILQ_HEAD(pf_poolqueue, pf_pool); 1803#ifdef __FreeBSD__ 1804VNET_DECLARE(struct pf_poolqueue, pf_pools[2]); 1805#define V_pf_pools VNET(pf_pools) 1806#else 1807extern struct pf_poolqueue pf_pools[2]; 1808#endif 1809TAILQ_HEAD(pf_altqqueue, pf_altq); 1810#ifdef __FreeBSD__ 1811VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]); 1812#define V_pf_altqs VNET(pf_altqs) 1813VNET_DECLARE(struct pf_palist, pf_pabuf); 1814#define V_pf_pabuf VNET(pf_pabuf) 1815#else 1816extern struct pf_altqqueue pf_altqs[2]; 1817extern struct pf_palist pf_pabuf; 1818#endif 1819 1820#ifdef __FreeBSD__ 1821VNET_DECLARE(u_int32_t, ticket_altqs_active); 1822#define V_ticket_altqs_active VNET(ticket_altqs_active) 1823VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1824#define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1825VNET_DECLARE(int, altqs_inactive_open); 1826#define V_altqs_inactive_open VNET(altqs_inactive_open) 1827VNET_DECLARE(u_int32_t, ticket_pabuf); 1828#define V_ticket_pabuf VNET(ticket_pabuf) 1829VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1830#define V_pf_altqs_active VNET(pf_altqs_active) 1831VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1832#define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1833VNET_DECLARE(struct pf_poolqueue *, pf_pools_active); 1834#define V_pf_pools_active VNET(pf_pools_active) 1835VNET_DECLARE(struct pf_poolqueue *, pf_pools_inactive); 1836#define V_pf_pools_inactive VNET(pf_pools_inactive) 1837#else 1838extern u_int32_t ticket_altqs_active; 1839extern u_int32_t ticket_altqs_inactive; 1840extern int altqs_inactive_open; 1841extern u_int32_t ticket_pabuf; 1842extern struct pf_altqqueue *pf_altqs_active; 1843extern struct pf_altqqueue *pf_altqs_inactive; 1844extern struct pf_poolqueue *pf_pools_active; 1845extern struct pf_poolqueue *pf_pools_inactive; 1846#endif 1847extern int pf_tbladdr_setup(struct pf_ruleset *, 1848 struct pf_addr_wrap *); 1849extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1850extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1851extern void pf_calc_skip_steps(struct pf_rulequeue *); 1852#ifdef __FreeBSD__ 1853#ifdef ALTQ 1854extern void pf_altq_ifnet_event(struct ifnet *, int); 1855#endif 1856VNET_DECLARE(uma_zone_t, pf_src_tree_pl); 1857#define V_pf_src_tree_pl VNET(pf_src_tree_pl) 1858VNET_DECLARE(uma_zone_t, pf_rule_pl); 1859#define V_pf_rule_pl VNET(pf_rule_pl) 1860VNET_DECLARE(uma_zone_t, pf_state_pl); 1861#define V_pf_state_pl VNET(pf_state_pl) 1862VNET_DECLARE(uma_zone_t, pf_state_key_pl); 1863#define V_pf_state_key_pl VNET(pf_state_key_pl) 1864VNET_DECLARE(uma_zone_t, pf_state_item_pl); 1865#define V_pf_state_item_pl VNET(pf_state_item_pl) 1866VNET_DECLARE(uma_zone_t, pf_altq_pl); 1867#define V_pf_altq_pl VNET(pf_altq_pl) 1868VNET_DECLARE(uma_zone_t, pf_pooladdr_pl); 1869#define V_pf_pooladdr_pl VNET(pf_pooladdr_pl) 1870VNET_DECLARE(uma_zone_t, pfr_ktable_pl); 1871#define V_pfr_ktable_pl VNET(pfr_ktable_pl) 1872VNET_DECLARE(uma_zone_t, pfr_kentry_pl); 1873#define V_pfr_kentry_pl VNET(pfr_kentry_pl) 1874VNET_DECLARE(uma_zone_t, pf_cache_pl); 1875#define V_pf_cache_pl VNET(pf_cache_pl) 1876VNET_DECLARE(uma_zone_t, pf_cent_pl); 1877#define V_pf_cent_pl VNET(pf_cent_pl) 1878VNET_DECLARE(uma_zone_t, pf_state_scrub_pl); 1879#define V_pf_state_scrub_pl VNET(pf_state_scrub_pl) 1880VNET_DECLARE(uma_zone_t, pfi_addr_pl); 1881#define V_pfi_addr_pl VNET(pfi_addr_pl) 1882#else 1883extern struct pool pf_src_tree_pl, pf_rule_pl; 1884extern struct pool pf_state_pl, pf_state_key_pl, pf_state_item_pl, 1885 pf_altq_pl, pf_pooladdr_pl; 1886extern struct pool pf_state_scrub_pl; 1887#endif 1888extern void pf_purge_thread(void *); 1889#ifdef __FreeBSD__ 1890extern int pf_purge_expired_src_nodes(int); 1891extern int pf_purge_expired_states(u_int32_t , int); 1892#else 1893extern void pf_purge_expired_src_nodes(int); 1894extern void pf_purge_expired_states(u_int32_t); 1895#endif 1896extern void pf_unlink_state(struct pf_state *); 1897extern void pf_free_state(struct pf_state *); 1898extern int pf_state_insert(struct pfi_kif *, 1899 struct pf_state_key *, 1900 struct pf_state_key *, 1901 struct pf_state *); 1902extern int pf_insert_src_node(struct pf_src_node **, 1903 struct pf_rule *, struct pf_addr *, 1904 sa_family_t); 1905void pf_src_tree_remove_state(struct pf_state *); 1906extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 1907extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1908 u_int, int *); 1909extern void pf_print_state(struct pf_state *); 1910extern void pf_print_flags(u_int8_t); 1911extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1912 u_int8_t); 1913 1914#ifdef __FreeBSD__ 1915VNET_DECLARE(struct ifnet *, sync_ifp); 1916#define V_sync_ifp VNET(sync_ifp); 1917VNET_DECLARE(struct pf_rule, pf_default_rule); 1918#define V_pf_default_rule VNET(pf_default_rule) 1919#else 1920extern struct ifnet *sync_ifp; 1921extern struct pf_rule pf_default_rule; 1922#endif 1923extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1924 u_int8_t); 1925void pf_rm_rule(struct pf_rulequeue *, 1926 struct pf_rule *); 1927#ifndef __FreeBSD__ 1928struct pf_divert *pf_find_divert(struct mbuf *); 1929#endif 1930 1931#ifdef INET 1932#ifdef __FreeBSD__ 1933int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *, 1934 struct inpcb *); 1935#else 1936int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *); 1937#endif 1938#endif /* INET */ 1939 1940#ifdef INET6 1941#ifdef __FreeBSD__ 1942int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *, 1943 struct inpcb *); 1944#else 1945int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *); 1946#endif 1947void pf_poolmask(struct pf_addr *, struct pf_addr*, 1948 struct pf_addr *, struct pf_addr *, u_int8_t); 1949void pf_addr_inc(struct pf_addr *, sa_family_t); 1950#endif /* INET6 */ 1951 1952#ifdef __FreeBSD__ 1953u_int32_t pf_new_isn(struct pf_state *); 1954#endif 1955void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1956 sa_family_t); 1957void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1958int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1959 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *, 1960 struct pf_pdesc *); 1961void pf_send_deferred_syn(struct pf_state *); 1962int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1963 struct pf_addr *, sa_family_t); 1964int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1965 struct pf_addr *, sa_family_t); 1966int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1967int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1968int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1969int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1970 1971void pf_normalize_init(void); 1972int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1973 struct pf_pdesc *); 1974int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1975 struct pf_pdesc *); 1976int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1977 struct pf_pdesc *); 1978void pf_normalize_tcp_cleanup(struct pf_state *); 1979int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1980 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1981int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1982 u_short *, struct tcphdr *, struct pf_state *, 1983 struct pf_state_peer *, struct pf_state_peer *, int *); 1984u_int32_t 1985 pf_state_expires(const struct pf_state *); 1986void pf_purge_expired_fragments(void); 1987int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *); 1988int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); 1989#ifdef __FreeBSD__ 1990int pf_socket_lookup(int, struct pf_pdesc *, struct inpcb *); 1991#else 1992int pf_socket_lookup(int, struct pf_pdesc *); 1993#endif 1994struct pf_state_key *pf_alloc_state_key(int); 1995void pf_pkt_addr_changed(struct mbuf *); 1996int pf_state_key_attach(struct pf_state_key *, struct pf_state *, int); 1997void pfr_initialize(void); 1998int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1999void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2000 u_int64_t, int, int, int); 2001int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 2002 struct pf_addr **, struct pf_addr **, sa_family_t); 2003void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2004struct pfr_ktable * 2005 pfr_attach_table(struct pf_ruleset *, char *, int); 2006void pfr_detach_table(struct pfr_ktable *); 2007int pfr_clr_tables(struct pfr_table *, int *, int); 2008int pfr_add_tables(struct pfr_table *, int, int *, int); 2009int pfr_del_tables(struct pfr_table *, int, int *, int); 2010int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2011int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2012int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2013int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2014int pfr_clr_addrs(struct pfr_table *, int *, int); 2015int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 2016int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2017 int); 2018int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2019 int); 2020int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2021 int *, int *, int *, int, u_int32_t); 2022int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2023int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2024int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2025 int); 2026int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2027 int); 2028int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2029int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2030int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2031int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2032 int *, u_int32_t, int); 2033 2034#ifdef __FreeBSD__ 2035VNET_DECLARE(struct pfi_kif *, pfi_all); 2036#define V_pfi_all VNET(pfi_all) 2037#else 2038extern struct pfi_kif *pfi_all; 2039#endif 2040 2041void pfi_initialize(void); 2042#ifdef __FreeBSD__ 2043void pfi_cleanup(void); 2044#endif 2045struct pfi_kif *pfi_kif_get(const char *); 2046void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2047void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2048int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2049void pfi_attach_ifnet(struct ifnet *); 2050void pfi_detach_ifnet(struct ifnet *); 2051void pfi_attach_ifgroup(struct ifg_group *); 2052void pfi_detach_ifgroup(struct ifg_group *); 2053void pfi_group_change(const char *); 2054int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2055 sa_family_t); 2056int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2057void pfi_dynaddr_remove(struct pf_addr_wrap *); 2058void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2059void pfi_update_status(const char *, struct pf_status *); 2060int pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2061int pfi_set_flags(const char *, int); 2062int pfi_clear_flags(const char *, int); 2063 2064#ifdef __FreeBSD__ 2065int pf_match_tag(struct mbuf *, struct pf_rule *, int *, 2066 struct pf_mtag *); 2067#else 2068int pf_match_tag(struct mbuf *, struct pf_rule *, int *); 2069#endif 2070u_int16_t pf_tagname2tag(char *); 2071void pf_tag2tagname(u_int16_t, char *); 2072void pf_tag_ref(u_int16_t); 2073void pf_tag_unref(u_int16_t); 2074#ifdef __FreeBSD__ 2075int pf_tag_packet(struct mbuf *, int, int, struct pf_mtag *); 2076#else 2077int pf_tag_packet(struct mbuf *, int, int); 2078#endif 2079u_int32_t pf_qname2qid(char *); 2080void pf_qid2qname(u_int32_t, char *); 2081void pf_qid_unref(u_int32_t); 2082 2083#ifdef __FreeBSD__ 2084VNET_DECLARE(struct pf_status, pf_status); 2085#define V_pf_status VNET(pf_status) 2086#else 2087extern struct pf_status pf_status; 2088#endif 2089 2090#ifdef __FreeBSD__ 2091VNET_DECLARE(uma_zone_t, pf_frent_pl); 2092#define V_pf_frent_pl VNET(pf_frent_pl) 2093VNET_DECLARE(uma_zone_t, pf_frag_pl); 2094#define V_pf_frag_pl VNET(pf_frag_pl) 2095VNET_DECLARE(struct sx, pf_consistency_lock); 2096#define V_pf_consistency_lock VNET(pf_consistency_lock) 2097#else 2098extern struct pool pf_frent_pl, pf_frag_pl; 2099extern struct rwlock pf_consistency_lock; 2100#endif 2101 2102struct pf_pool_limit { 2103 void *pp; 2104 unsigned limit; 2105}; 2106#ifdef __FreeBSD__ 2107VNET_DECLARE(struct pf_pool_limit, pf_pool_limits[PF_LIMIT_MAX]); 2108#define V_pf_pool_limits VNET(pf_pool_limits) 2109#else 2110extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2111#endif 2112 2113#ifdef __FreeBSD__ 2114struct pf_frent { 2115 LIST_ENTRY(pf_frent) fr_next; 2116 struct ip *fr_ip; 2117 struct mbuf *fr_m; 2118}; 2119 2120struct pf_frcache { 2121 LIST_ENTRY(pf_frcache) fr_next; 2122 uint16_t fr_off; 2123 uint16_t fr_end; 2124}; 2125 2126struct pf_fragment { 2127 RB_ENTRY(pf_fragment) fr_entry; 2128 TAILQ_ENTRY(pf_fragment) frag_next; 2129 struct in_addr fr_src; 2130 struct in_addr fr_dst; 2131 u_int8_t fr_p; /* protocol of this fragment */ 2132 u_int8_t fr_flags; /* status flags */ 2133 u_int16_t fr_id; /* fragment id for reassemble */ 2134 u_int16_t fr_max; /* fragment data max */ 2135 u_int32_t fr_timeout; 2136#define fr_queue fr_u.fru_queue 2137#define fr_cache fr_u.fru_cache 2138 union { 2139 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 2140 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 2141 } fr_u; 2142}; 2143#endif /* (__FreeBSD__) */ 2144 2145#endif /* _KERNEL */ 2146 2147#ifdef __FreeBSD__ 2148#ifdef _KERNEL 2149VNET_DECLARE(struct pf_anchor_global, pf_anchors); 2150#define V_pf_anchors VNET(pf_anchors) 2151VNET_DECLARE(struct pf_anchor, pf_main_anchor); 2152#define V_pf_main_anchor VNET(pf_main_anchor) 2153#define pf_main_ruleset V_pf_main_anchor.ruleset 2154#endif 2155#else 2156extern struct pf_anchor_global pf_anchors; 2157extern struct pf_anchor pf_main_anchor; 2158#define pf_main_ruleset pf_main_anchor.ruleset 2159#endif 2160 2161/* these ruleset functions can be linked into userland programs (pfctl) */ 2162int pf_get_ruleset_number(u_int8_t); 2163void pf_init_ruleset(struct pf_ruleset *); 2164int pf_anchor_setup(struct pf_rule *, 2165 const struct pf_ruleset *, const char *); 2166int pf_anchor_copyout(const struct pf_ruleset *, 2167 const struct pf_rule *, struct pfioc_rule *); 2168void pf_anchor_remove(struct pf_rule *); 2169void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2170struct pf_anchor *pf_find_anchor(const char *); 2171struct pf_ruleset *pf_find_ruleset(const char *); 2172struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2173void pf_rs_initialize(void); 2174 2175#ifndef __FreeBSD__ 2176#ifdef _KERNEL 2177int pf_anchor_copyout(const struct pf_ruleset *, 2178 const struct pf_rule *, struct pfioc_rule *); 2179void pf_anchor_remove(struct pf_rule *); 2180 2181#endif /* _KERNEL */ 2182#endif 2183 2184/* The fingerprint functions can be linked into userland programs (tcpdump) */ 2185int pf_osfp_add(struct pf_osfp_ioctl *); 2186#ifdef _KERNEL 2187struct pf_osfp_enlist * 2188 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 2189 const struct tcphdr *); 2190#endif /* _KERNEL */ 2191struct pf_osfp_enlist * 2192 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *, 2193 const struct tcphdr *); 2194void pf_osfp_flush(void); 2195int pf_osfp_get(struct pf_osfp_ioctl *); 2196#ifdef __FreeBSD__ 2197int pf_osfp_initialize(void); 2198void pf_osfp_cleanup(void); 2199#else 2200void pf_osfp_initialize(void); 2201#endif 2202int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2203struct pf_os_fingerprint * 2204 pf_osfp_validate(void); 2205 2206#ifdef _KERNEL 2207void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 2208 2209void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2210 struct pf_rule **, struct pf_rule **, int *); 2211int pf_step_out_of_anchor(int *, struct pf_ruleset **, 2212 int, struct pf_rule **, struct pf_rule **, 2213 int *); 2214 2215int pf_map_addr(u_int8_t, struct pf_rule *, 2216 struct pf_addr *, struct pf_addr *, 2217 struct pf_addr *, struct pf_src_node **); 2218struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 2219 int, int, struct pfi_kif *, struct pf_src_node **, 2220 struct pf_state_key **, struct pf_state_key **, 2221 struct pf_state_key **, struct pf_state_key **, 2222 struct pf_addr *, struct pf_addr *, 2223 u_int16_t, u_int16_t); 2224 2225int pf_state_key_setup(struct pf_pdesc *, struct pf_rule *, 2226 struct pf_state_key **, struct pf_state_key **, 2227 struct pf_state_key **, struct pf_state_key **, 2228 struct pf_addr *, struct pf_addr *, 2229 u_int16_t, u_int16_t); 2230#endif /* _KERNEL */ 2231 2232 2233#endif /* _NET_PFVAR_H_ */ 2234