pf.h revision 226533
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_WAIT 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__ 240VNET_DECLARE(struct mtx, pf_task_mtx); 241#define V_pf_task_mtx VNET(pf_task_mtx) 242 243#define PF_ASSERT(h) mtx_assert(&V_pf_task_mtx, (h)) 244 245#define PF_LOCK() do { \ 246 PF_ASSERT(MA_NOTOWNED); \ 247 mtx_lock(&V_pf_task_mtx); \ 248} while(0) 249#define PF_UNLOCK() do { \ 250 PF_ASSERT(MA_OWNED); \ 251 mtx_unlock(&V_pf_task_mtx); \ 252} while(0) 253#else 254#define PF_ASSERT(h) 255#define PF_LOCK() 256#define PF_UNLOCK() 257#endif /* __FreeBSD__ */ 258 259#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 260 PF_UNLOCK(); \ 261 r = copyin((uaddr), (kaddr), (len)); \ 262 PF_LOCK(); \ 263} while(0) 264 265#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 266 PF_UNLOCK(); \ 267 r = copyout((kaddr), (uaddr), (len)); \ 268 PF_LOCK(); \ 269} while(0) 270 271extern void init_pf_mutex(void); 272extern void destroy_pf_mutex(void); 273 274#define PF_MODVER 1 275#define PFLOG_MODVER 1 276#define PFSYNC_MODVER 1 277 278#define PFLOG_MINVER 1 279#define PFLOG_PREFVER PFLOG_MODVER 280#define PFLOG_MAXVER 1 281#define PFSYNC_MINVER 1 282#define PFSYNC_PREFVER PFSYNC_MODVER 283#define PFSYNC_MAXVER 1 284#endif /* __FreeBSD__ */ 285#ifdef INET 286#ifndef INET6 287#define PF_INET_ONLY 288#endif /* ! INET6 */ 289#endif /* INET */ 290 291#ifdef INET6 292#ifndef INET 293#define PF_INET6_ONLY 294#endif /* ! INET */ 295#endif /* INET6 */ 296 297#ifdef INET 298#ifdef INET6 299#define PF_INET_INET6 300#endif /* INET6 */ 301#endif /* INET */ 302 303#else 304 305#define PF_INET_INET6 306 307#endif /* _KERNEL */ 308 309/* Both IPv4 and IPv6 */ 310#ifdef PF_INET_INET6 311 312#define PF_AEQ(a, b, c) \ 313 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 314 ((a)->addr32[3] == (b)->addr32[3] && \ 315 (a)->addr32[2] == (b)->addr32[2] && \ 316 (a)->addr32[1] == (b)->addr32[1] && \ 317 (a)->addr32[0] == (b)->addr32[0])) \ 318 319#define PF_ANEQ(a, b, c) \ 320 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 321 ((a)->addr32[3] != (b)->addr32[3] || \ 322 (a)->addr32[2] != (b)->addr32[2] || \ 323 (a)->addr32[1] != (b)->addr32[1] || \ 324 (a)->addr32[0] != (b)->addr32[0])) \ 325 326#define PF_AZERO(a, c) \ 327 ((c == AF_INET && !(a)->addr32[0]) || \ 328 (!(a)->addr32[0] && !(a)->addr32[1] && \ 329 !(a)->addr32[2] && !(a)->addr32[3] )) \ 330 331#define PF_MATCHA(n, a, m, b, f) \ 332 pf_match_addr(n, a, m, b, f) 333 334#define PF_ACPY(a, b, f) \ 335 pf_addrcpy(a, b, f) 336 337#define PF_AINC(a, f) \ 338 pf_addr_inc(a, f) 339 340#define PF_POOLMASK(a, b, c, d, f) \ 341 pf_poolmask(a, b, c, d, f) 342 343#else 344 345/* Just IPv6 */ 346 347#ifdef PF_INET6_ONLY 348 349#define PF_AEQ(a, b, c) \ 350 ((a)->addr32[3] == (b)->addr32[3] && \ 351 (a)->addr32[2] == (b)->addr32[2] && \ 352 (a)->addr32[1] == (b)->addr32[1] && \ 353 (a)->addr32[0] == (b)->addr32[0]) \ 354 355#define PF_ANEQ(a, b, c) \ 356 ((a)->addr32[3] != (b)->addr32[3] || \ 357 (a)->addr32[2] != (b)->addr32[2] || \ 358 (a)->addr32[1] != (b)->addr32[1] || \ 359 (a)->addr32[0] != (b)->addr32[0]) \ 360 361#define PF_AZERO(a, c) \ 362 (!(a)->addr32[0] && \ 363 !(a)->addr32[1] && \ 364 !(a)->addr32[2] && \ 365 !(a)->addr32[3] ) \ 366 367#define PF_MATCHA(n, a, m, b, f) \ 368 pf_match_addr(n, a, m, b, f) 369 370#define PF_ACPY(a, b, f) \ 371 pf_addrcpy(a, b, f) 372 373#define PF_AINC(a, f) \ 374 pf_addr_inc(a, f) 375 376#define PF_POOLMASK(a, b, c, d, f) \ 377 pf_poolmask(a, b, c, d, f) 378 379#else 380 381/* Just IPv4 */ 382#ifdef PF_INET_ONLY 383 384#define PF_AEQ(a, b, c) \ 385 ((a)->addr32[0] == (b)->addr32[0]) 386 387#define PF_ANEQ(a, b, c) \ 388 ((a)->addr32[0] != (b)->addr32[0]) 389 390#define PF_AZERO(a, c) \ 391 (!(a)->addr32[0]) 392 393#define PF_MATCHA(n, a, m, b, f) \ 394 pf_match_addr(n, a, m, b, f) 395 396#define PF_ACPY(a, b, f) \ 397 (a)->v4.s_addr = (b)->v4.s_addr 398 399#define PF_AINC(a, f) \ 400 do { \ 401 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 402 } while (0) 403 404#define PF_POOLMASK(a, b, c, d, f) \ 405 do { \ 406 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 407 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 408 } while (0) 409 410#endif /* PF_INET_ONLY */ 411#endif /* PF_INET6_ONLY */ 412#endif /* PF_INET_INET6 */ 413 414#define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 415 ( \ 416 (((aw)->type == PF_ADDR_NOROUTE && \ 417 pf_routable((x), (af), NULL)) || \ 418 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 419 pf_routable((x), (af), (ifp))) || \ 420 ((aw)->type == PF_ADDR_RTLABEL && \ 421 !pf_rtlabel_match((x), (af), (aw))) || \ 422 ((aw)->type == PF_ADDR_TABLE && \ 423 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 424 ((aw)->type == PF_ADDR_DYNIFTL && \ 425 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 426 ((aw)->type == PF_ADDR_RANGE && \ 427 !pf_match_addr_range(&(aw)->v.a.addr, \ 428 &(aw)->v.a.mask, (x), (af))) || \ 429 ((aw)->type == PF_ADDR_ADDRMASK && \ 430 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 431 !PF_MATCHA(0, &(aw)->v.a.addr, \ 432 &(aw)->v.a.mask, (x), (af))))) != \ 433 (neg) \ 434 ) 435 436 437struct pf_rule_uid { 438 uid_t uid[2]; 439 u_int8_t op; 440}; 441 442struct pf_rule_gid { 443 uid_t gid[2]; 444 u_int8_t op; 445}; 446 447struct pf_rule_addr { 448 struct pf_addr_wrap addr; 449 u_int16_t port[2]; 450 u_int8_t neg; 451 u_int8_t port_op; 452}; 453 454struct pf_pooladdr { 455 struct pf_addr_wrap addr; 456 TAILQ_ENTRY(pf_pooladdr) entries; 457 char ifname[IFNAMSIZ]; 458 struct pfi_kif *kif; 459}; 460 461TAILQ_HEAD(pf_palist, pf_pooladdr); 462 463struct pf_poolhashkey { 464 union { 465 u_int8_t key8[16]; 466 u_int16_t key16[8]; 467 u_int32_t key32[4]; 468 } pfk; /* 128-bit hash key */ 469#define key8 pfk.key8 470#define key16 pfk.key16 471#define key32 pfk.key32 472}; 473 474struct pf_pool { 475 struct pf_palist list; 476 struct pf_pooladdr *cur; 477 struct pf_poolhashkey key; 478 struct pf_addr counter; 479 int tblidx; 480 u_int16_t proxy_port[2]; 481 u_int8_t port_op; 482 u_int8_t opts; 483}; 484 485 486/* A packed Operating System description for fingerprinting */ 487typedef u_int32_t pf_osfp_t; 488#define PF_OSFP_ANY ((pf_osfp_t)0) 489#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 490#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 491 492struct pf_osfp_entry { 493 SLIST_ENTRY(pf_osfp_entry) fp_entry; 494 pf_osfp_t fp_os; 495 int fp_enflags; 496#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 497#define PF_OSFP_GENERIC 0x002 /* generic signature */ 498#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 499#define PF_OSFP_LEN 32 500 char fp_class_nm[PF_OSFP_LEN]; 501 char fp_version_nm[PF_OSFP_LEN]; 502 char fp_subtype_nm[PF_OSFP_LEN]; 503}; 504#define PF_OSFP_ENTRY_EQ(a, b) \ 505 ((a)->fp_os == (b)->fp_os && \ 506 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 507 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 508 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 509 510/* handle pf_osfp_t packing */ 511#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 512#define _FP_UNUSED_BITS 1 513#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 514#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 515#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 516#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 517 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 518 ((1 << _FP_CLASS_BITS) - 1); \ 519 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 520 ((1 << _FP_VERSION_BITS) - 1);\ 521 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 522} while(0) 523#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 524 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 525 + _FP_SUBTYPE_BITS); \ 526 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 527 _FP_SUBTYPE_BITS; \ 528 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 529} while(0) 530 531/* the fingerprint of an OSes TCP SYN packet */ 532typedef u_int64_t pf_tcpopts_t; 533struct pf_os_fingerprint { 534 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 535 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 536 u_int16_t fp_wsize; /* TCP window size */ 537 u_int16_t fp_psize; /* ip->ip_len */ 538 u_int16_t fp_mss; /* TCP MSS */ 539 u_int16_t fp_flags; 540#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 541#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 542#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 543#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 544#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 545#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 546#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 547#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 548#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 549#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 550#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 551#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 552#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 553#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 554#define PF_OSFP_INET6 0x4000 /* IPv6 */ 555 u_int8_t fp_optcnt; /* TCP option count */ 556 u_int8_t fp_wscale; /* TCP window scaling */ 557 u_int8_t fp_ttl; /* IPv4 TTL */ 558#define PF_OSFP_MAXTTL_OFFSET 40 559/* TCP options packing */ 560#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 561#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 562#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 563#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 564#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 565#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 566#define PF_OSFP_MAX_OPTS \ 567 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 568 / PF_OSFP_TCPOPT_BITS 569 570 SLIST_ENTRY(pf_os_fingerprint) fp_next; 571}; 572 573struct pf_osfp_ioctl { 574 struct pf_osfp_entry fp_os; 575 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 576 u_int16_t fp_wsize; /* TCP window size */ 577 u_int16_t fp_psize; /* ip->ip_len */ 578 u_int16_t fp_mss; /* TCP MSS */ 579 u_int16_t fp_flags; 580 u_int8_t fp_optcnt; /* TCP option count */ 581 u_int8_t fp_wscale; /* TCP window scaling */ 582 u_int8_t fp_ttl; /* IPv4 TTL */ 583 584 int fp_getnum; /* DIOCOSFPGET number */ 585}; 586 587 588union pf_rule_ptr { 589 struct pf_rule *ptr; 590 u_int32_t nr; 591}; 592 593#define PF_ANCHOR_NAME_SIZE 64 594 595struct pf_rule { 596 struct pf_rule_addr src; 597 struct pf_rule_addr dst; 598#define PF_SKIP_IFP 0 599#define PF_SKIP_DIR 1 600#define PF_SKIP_AF 2 601#define PF_SKIP_PROTO 3 602#define PF_SKIP_SRC_ADDR 4 603#define PF_SKIP_SRC_PORT 5 604#define PF_SKIP_DST_ADDR 6 605#define PF_SKIP_DST_PORT 7 606#define PF_SKIP_COUNT 8 607 union pf_rule_ptr skip[PF_SKIP_COUNT]; 608#define PF_RULE_LABEL_SIZE 64 609 char label[PF_RULE_LABEL_SIZE]; 610#define PF_QNAME_SIZE 64 611 char ifname[IFNAMSIZ]; 612 char qname[PF_QNAME_SIZE]; 613 char pqname[PF_QNAME_SIZE]; 614#define PF_TAG_NAME_SIZE 64 615 char tagname[PF_TAG_NAME_SIZE]; 616 char match_tagname[PF_TAG_NAME_SIZE]; 617 618 char overload_tblname[PF_TABLE_NAME_SIZE]; 619 620 TAILQ_ENTRY(pf_rule) entries; 621 struct pf_pool rpool; 622 623 u_int64_t evaluations; 624 u_int64_t packets[2]; 625 u_int64_t bytes[2]; 626 627 struct pfi_kif *kif; 628 struct pf_anchor *anchor; 629 struct pfr_ktable *overload_tbl; 630 631 pf_osfp_t os_fingerprint; 632 633 int rtableid; 634 u_int32_t timeout[PFTM_MAX]; 635 u_int32_t states_cur; 636 u_int32_t states_tot; 637 u_int32_t max_states; 638 u_int32_t src_nodes; 639 u_int32_t max_src_nodes; 640 u_int32_t max_src_states; 641 u_int32_t spare1; /* netgraph */ 642 u_int32_t max_src_conn; 643 struct { 644 u_int32_t limit; 645 u_int32_t seconds; 646 } max_src_conn_rate; 647 u_int32_t qid; 648 u_int32_t pqid; 649 u_int32_t rt_listid; 650 u_int32_t nr; 651 u_int32_t prob; 652 uid_t cuid; 653 pid_t cpid; 654 655 u_int16_t return_icmp; 656 u_int16_t return_icmp6; 657 u_int16_t max_mss; 658 u_int16_t tag; 659 u_int16_t match_tag; 660 u_int16_t spare2; /* netgraph */ 661 662 struct pf_rule_uid uid; 663 struct pf_rule_gid gid; 664 665 u_int32_t rule_flag; 666 u_int8_t action; 667 u_int8_t direction; 668 u_int8_t log; 669 u_int8_t logif; 670 u_int8_t quick; 671 u_int8_t ifnot; 672 u_int8_t match_tag_not; 673 u_int8_t natpass; 674 675#define PF_STATE_NORMAL 0x1 676#define PF_STATE_MODULATE 0x2 677#define PF_STATE_SYNPROXY 0x3 678 u_int8_t keep_state; 679 sa_family_t af; 680 u_int8_t proto; 681 u_int8_t type; 682 u_int8_t code; 683 u_int8_t flags; 684 u_int8_t flagset; 685 u_int8_t min_ttl; 686 u_int8_t allow_opts; 687 u_int8_t rt; 688 u_int8_t return_ttl; 689 u_int8_t tos; 690 u_int8_t set_tos; 691 u_int8_t anchor_relative; 692 u_int8_t anchor_wildcard; 693 694#define PF_FLUSH 0x01 695#define PF_FLUSH_GLOBAL 0x02 696 u_int8_t flush; 697 698 struct { 699 struct pf_addr addr; 700 u_int16_t port; 701 } divert; 702}; 703 704/* rule flags */ 705#define PFRULE_DROP 0x0000 706#define PFRULE_RETURNRST 0x0001 707#define PFRULE_FRAGMENT 0x0002 708#define PFRULE_RETURNICMP 0x0004 709#define PFRULE_RETURN 0x0008 710#define PFRULE_NOSYNC 0x0010 711#define PFRULE_SRCTRACK 0x0020 /* track source states */ 712#define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 713 714/* scrub flags */ 715#define PFRULE_NODF 0x0100 716#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 717#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 718#define PFRULE_RANDOMID 0x0800 719#define PFRULE_REASSEMBLE_TCP 0x1000 720#define PFRULE_SET_TOS 0x2000 721 722/* rule flags again */ 723#define PFRULE_IFBOUND 0x00010000 /* if-bound */ 724#define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */ 725#define PFRULE_PFLOW 0x00040000 726 727#define PFSTATE_HIWAT 10000 /* default state table size */ 728#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 729#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 730 731 732struct pf_threshold { 733 u_int32_t limit; 734#define PF_THRESHOLD_MULT 1000 735#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 736 u_int32_t seconds; 737 u_int32_t count; 738 u_int32_t last; 739}; 740 741struct pf_src_node { 742 RB_ENTRY(pf_src_node) entry; 743 struct pf_addr addr; 744 struct pf_addr raddr; 745 union pf_rule_ptr rule; 746 struct pfi_kif *kif; 747 u_int64_t bytes[2]; 748 u_int64_t packets[2]; 749 u_int32_t states; 750 u_int32_t conn; 751 struct pf_threshold conn_rate; 752 u_int32_t creation; 753 u_int32_t expire; 754 sa_family_t af; 755 u_int8_t ruletype; 756}; 757 758#define PFSNODE_HIWAT 10000 /* default source node table size */ 759 760struct pf_state_scrub { 761 struct timeval pfss_last; /* time received last packet */ 762 u_int32_t pfss_tsecr; /* last echoed timestamp */ 763 u_int32_t pfss_tsval; /* largest timestamp */ 764 u_int32_t pfss_tsval0; /* original timestamp */ 765 u_int16_t pfss_flags; 766#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 767#define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 768#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 769#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 770#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 771 u_int8_t pfss_ttl; /* stashed TTL */ 772 u_int8_t pad; 773 u_int32_t pfss_ts_mod; /* timestamp modulation */ 774}; 775 776struct pf_state_host { 777 struct pf_addr addr; 778 u_int16_t port; 779 u_int16_t pad; 780}; 781 782struct pf_state_peer { 783 struct pf_state_scrub *scrub; /* state is scrubbed */ 784 u_int32_t seqlo; /* Max sequence number sent */ 785 u_int32_t seqhi; /* Max the other end ACKd + win */ 786 u_int32_t seqdiff; /* Sequence number modulator */ 787 u_int16_t max_win; /* largest window (pre scaling) */ 788 u_int16_t mss; /* Maximum segment size option */ 789 u_int8_t state; /* active state level */ 790 u_int8_t wscale; /* window scaling factor */ 791 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 792 u_int8_t pad[1]; 793}; 794 795TAILQ_HEAD(pf_state_queue, pf_state); 796 797/* keep synced with struct pf_state_key, used in RB_FIND */ 798struct pf_state_key_cmp { 799 struct pf_addr addr[2]; 800 u_int16_t port[2]; 801 sa_family_t af; 802 u_int8_t proto; 803 u_int8_t pad[2]; 804}; 805 806struct pf_state_item { 807 TAILQ_ENTRY(pf_state_item) entry; 808 struct pf_state *s; 809}; 810 811TAILQ_HEAD(pf_statelisthead, pf_state_item); 812 813struct pf_state_key { 814 struct pf_addr addr[2]; 815 u_int16_t port[2]; 816 sa_family_t af; 817 u_int8_t proto; 818 u_int8_t pad[2]; 819 820 RB_ENTRY(pf_state_key) entry; 821 struct pf_statelisthead states; 822 struct pf_state_key *reverse; 823 struct inpcb *inp; 824}; 825 826/* keep synced with struct pf_state, used in RB_FIND */ 827struct pf_state_cmp { 828 u_int64_t id; 829 u_int32_t creatorid; 830 u_int8_t direction; 831 u_int8_t pad[3]; 832}; 833 834struct pf_state { 835 u_int64_t id; 836 u_int32_t creatorid; 837 u_int8_t direction; 838#ifdef __FreeBSD__ 839 u_int8_t pad[2]; 840 u_int8_t local_flags; 841#define PFSTATE_EXPIRING 0x01 842#else 843 u_int8_t pad[3]; 844#endif 845 846 TAILQ_ENTRY(pf_state) sync_list; 847 TAILQ_ENTRY(pf_state) entry_list; 848 RB_ENTRY(pf_state) entry_id; 849 struct pf_state_peer src; 850 struct pf_state_peer dst; 851 union pf_rule_ptr rule; 852 union pf_rule_ptr anchor; 853 union pf_rule_ptr nat_rule; 854 struct pf_addr rt_addr; 855 struct pf_state_key *key[2]; /* addresses stack and wire */ 856 struct pfi_kif *kif; 857 struct pfi_kif *rt_kif; 858 struct pf_src_node *src_node; 859 struct pf_src_node *nat_src_node; 860 u_int64_t packets[2]; 861 u_int64_t bytes[2]; 862 u_int32_t creation; 863 u_int32_t expire; 864 u_int32_t pfsync_time; 865 u_int16_t tag; 866 u_int8_t log; 867 u_int8_t state_flags; 868#define PFSTATE_ALLOWOPTS 0x01 869#define PFSTATE_SLOPPY 0x02 870#define PFSTATE_PFLOW 0x04 871#define PFSTATE_NOSYNC 0x08 872#define PFSTATE_ACK 0x10 873 u_int8_t timeout; 874 u_int8_t sync_state; /* PFSYNC_S_x */ 875 876 /* XXX */ 877 u_int8_t sync_updates; 878 u_int8_t _tail[3]; 879}; 880 881/* 882 * Unified state structures for pulling states out of the kernel 883 * used by pfsync(4) and the pf(4) ioctl. 884 */ 885struct pfsync_state_scrub { 886 u_int16_t pfss_flags; 887 u_int8_t pfss_ttl; /* stashed TTL */ 888#define PFSYNC_SCRUB_FLAG_VALID 0x01 889 u_int8_t scrub_flag; 890 u_int32_t pfss_ts_mod; /* timestamp modulation */ 891} __packed; 892 893struct pfsync_state_peer { 894 struct pfsync_state_scrub scrub; /* state is scrubbed */ 895 u_int32_t seqlo; /* Max sequence number sent */ 896 u_int32_t seqhi; /* Max the other end ACKd + win */ 897 u_int32_t seqdiff; /* Sequence number modulator */ 898 u_int16_t max_win; /* largest window (pre scaling) */ 899 u_int16_t mss; /* Maximum segment size option */ 900 u_int8_t state; /* active state level */ 901 u_int8_t wscale; /* window scaling factor */ 902 u_int8_t pad[6]; 903} __packed; 904 905struct pfsync_state_key { 906 struct pf_addr addr[2]; 907 u_int16_t port[2]; 908}; 909 910struct pfsync_state { 911 u_int32_t id[2]; 912 char ifname[IFNAMSIZ]; 913 struct pfsync_state_key key[2]; 914 struct pfsync_state_peer src; 915 struct pfsync_state_peer dst; 916 struct pf_addr rt_addr; 917 u_int32_t rule; 918 u_int32_t anchor; 919 u_int32_t nat_rule; 920 u_int32_t creation; 921 u_int32_t expire; 922 u_int32_t packets[2][2]; 923 u_int32_t bytes[2][2]; 924 u_int32_t creatorid; 925 sa_family_t af; 926 u_int8_t proto; 927 u_int8_t direction; 928#ifdef __FreeBSD__ 929 u_int8_t local_flags; 930#define PFSTATE_EXPIRING 0x01 931 u_int8_t pad; 932#endif 933 u_int8_t log; 934 u_int8_t state_flags; 935 u_int8_t timeout; 936 u_int8_t sync_flags; 937 u_int8_t updates; 938} __packed; 939 940#ifdef __FreeBSD__ 941#ifdef _KERNEL 942/* pfsync */ 943typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t); 944typedef void pfsync_insert_state_t(struct pf_state *); 945typedef void pfsync_update_state_t(struct pf_state *); 946typedef void pfsync_delete_state_t(struct pf_state *); 947typedef void pfsync_clear_states_t(u_int32_t, const char *); 948typedef int pfsync_state_in_use_t(struct pf_state *); 949typedef int pfsync_defer_t(struct pf_state *, struct mbuf *); 950typedef int pfsync_up_t(void); 951 952extern pfsync_state_import_t *pfsync_state_import_ptr; 953extern pfsync_insert_state_t *pfsync_insert_state_ptr; 954extern pfsync_update_state_t *pfsync_update_state_ptr; 955extern pfsync_delete_state_t *pfsync_delete_state_ptr; 956extern pfsync_clear_states_t *pfsync_clear_states_ptr; 957extern pfsync_state_in_use_t *pfsync_state_in_use_ptr; 958extern pfsync_defer_t *pfsync_defer_ptr; 959extern pfsync_up_t *pfsync_up_ptr; 960 961void pfsync_state_export(struct pfsync_state *, 962 struct pf_state *); 963 964/* pflow */ 965typedef int export_pflow_t(struct pf_state *); 966 967extern export_pflow_t *export_pflow_ptr; 968 969/* pflog */ 970struct pf_ruleset; 971struct pf_pdesc; 972typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t, 973 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 974 struct pf_ruleset *, struct pf_pdesc *); 975 976extern pflog_packet_t *pflog_packet_ptr; 977 978/* pf uid hack */ 979VNET_DECLARE(int, debug_pfugidhack); 980#define V_debug_pfugidhack VNET(debug_pfugidhack) 981 982#define V_pf_end_threads VNET(pf_end_threads) 983#endif 984 985/* Macros to set/clear/test flags. */ 986#ifdef _KERNEL 987#define SET(t, f) ((t) |= (f)) 988#define CLR(t, f) ((t) &= ~(f)) 989#define ISSET(t, f) ((t) & (f)) 990#endif 991#endif 992 993#define PFSYNC_FLAG_SRCNODE 0x04 994#define PFSYNC_FLAG_NATSRCNODE 0x08 995 996/* for copies to/from network byte order */ 997/* ioctl interface also uses network byte order */ 998#define pf_state_peer_hton(s,d) do { \ 999 (d)->seqlo = htonl((s)->seqlo); \ 1000 (d)->seqhi = htonl((s)->seqhi); \ 1001 (d)->seqdiff = htonl((s)->seqdiff); \ 1002 (d)->max_win = htons((s)->max_win); \ 1003 (d)->mss = htons((s)->mss); \ 1004 (d)->state = (s)->state; \ 1005 (d)->wscale = (s)->wscale; \ 1006 if ((s)->scrub) { \ 1007 (d)->scrub.pfss_flags = \ 1008 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \ 1009 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1010 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\ 1011 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1012 } \ 1013} while (0) 1014 1015#define pf_state_peer_ntoh(s,d) do { \ 1016 (d)->seqlo = ntohl((s)->seqlo); \ 1017 (d)->seqhi = ntohl((s)->seqhi); \ 1018 (d)->seqdiff = ntohl((s)->seqdiff); \ 1019 (d)->max_win = ntohs((s)->max_win); \ 1020 (d)->mss = ntohs((s)->mss); \ 1021 (d)->state = (s)->state; \ 1022 (d)->wscale = (s)->wscale; \ 1023 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1024 (d)->scrub != NULL) { \ 1025 (d)->scrub->pfss_flags = \ 1026 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1027 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1028 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\ 1029 } \ 1030} while (0) 1031 1032#define pf_state_counter_hton(s,d) do { \ 1033 d[0] = htonl((s>>32)&0xffffffff); \ 1034 d[1] = htonl(s&0xffffffff); \ 1035} while (0) 1036 1037#define pf_state_counter_from_pfsync(s) \ 1038 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1039 1040#define pf_state_counter_ntoh(s,d) do { \ 1041 d = ntohl(s[0]); \ 1042 d = d<<32; \ 1043 d += ntohl(s[1]); \ 1044} while (0) 1045 1046TAILQ_HEAD(pf_rulequeue, pf_rule); 1047 1048struct pf_anchor; 1049 1050struct pf_ruleset { 1051 struct { 1052 struct pf_rulequeue queues[2]; 1053 struct { 1054 struct pf_rulequeue *ptr; 1055 struct pf_rule **ptr_array; 1056 u_int32_t rcount; 1057 u_int32_t ticket; 1058 int open; 1059 } active, inactive; 1060 } rules[PF_RULESET_MAX]; 1061 struct pf_anchor *anchor; 1062 u_int32_t tticket; 1063 int tables; 1064 int topen; 1065}; 1066 1067RB_HEAD(pf_anchor_global, pf_anchor); 1068RB_HEAD(pf_anchor_node, pf_anchor); 1069struct pf_anchor { 1070 RB_ENTRY(pf_anchor) entry_global; 1071 RB_ENTRY(pf_anchor) entry_node; 1072 struct pf_anchor *parent; 1073 struct pf_anchor_node children; 1074 char name[PF_ANCHOR_NAME_SIZE]; 1075 char path[MAXPATHLEN]; 1076 struct pf_ruleset ruleset; 1077 int refcnt; /* anchor rules */ 1078 int match; 1079}; 1080RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1081RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1082 1083#define PF_RESERVED_ANCHOR "_pf" 1084 1085#define PFR_TFLAG_PERSIST 0x00000001 1086#define PFR_TFLAG_CONST 0x00000002 1087#define PFR_TFLAG_ACTIVE 0x00000004 1088#define PFR_TFLAG_INACTIVE 0x00000008 1089#define PFR_TFLAG_REFERENCED 0x00000010 1090#define PFR_TFLAG_REFDANCHOR 0x00000020 1091#define PFR_TFLAG_COUNTERS 0x00000040 1092/* Adjust masks below when adding flags. */ 1093#define PFR_TFLAG_USRMASK 0x00000043 1094#define PFR_TFLAG_SETMASK 0x0000003C 1095#define PFR_TFLAG_ALLMASK 0x0000007F 1096 1097struct pfr_table { 1098 char pfrt_anchor[MAXPATHLEN]; 1099 char pfrt_name[PF_TABLE_NAME_SIZE]; 1100 u_int32_t pfrt_flags; 1101 u_int8_t pfrt_fback; 1102}; 1103 1104enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1105 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1106 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX }; 1107 1108struct pfr_addr { 1109 union { 1110 struct in_addr _pfra_ip4addr; 1111 struct in6_addr _pfra_ip6addr; 1112 } pfra_u; 1113 u_int8_t pfra_af; 1114 u_int8_t pfra_net; 1115 u_int8_t pfra_not; 1116 u_int8_t pfra_fback; 1117}; 1118#define pfra_ip4addr pfra_u._pfra_ip4addr 1119#define pfra_ip6addr pfra_u._pfra_ip6addr 1120 1121enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1122enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1123#define PFR_OP_XPASS PFR_OP_ADDR_MAX 1124 1125struct pfr_astats { 1126 struct pfr_addr pfras_a; 1127 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1128 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1129 long pfras_tzero; 1130}; 1131 1132enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1133 1134struct pfr_tstats { 1135 struct pfr_table pfrts_t; 1136 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1137 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1138 u_int64_t pfrts_match; 1139 u_int64_t pfrts_nomatch; 1140 long pfrts_tzero; 1141 int pfrts_cnt; 1142 int pfrts_refcnt[PFR_REFCNT_MAX]; 1143}; 1144#define pfrts_name pfrts_t.pfrt_name 1145#define pfrts_flags pfrts_t.pfrt_flags 1146 1147#ifndef _SOCKADDR_UNION_DEFINED 1148#define _SOCKADDR_UNION_DEFINED 1149union sockaddr_union { 1150 struct sockaddr sa; 1151 struct sockaddr_in sin; 1152 struct sockaddr_in6 sin6; 1153}; 1154#endif /* _SOCKADDR_UNION_DEFINED */ 1155 1156struct pfr_kcounters { 1157 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1158 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1159}; 1160 1161SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1162struct pfr_kentry { 1163 struct radix_node pfrke_node[2]; 1164 union sockaddr_union pfrke_sa; 1165 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1166 union { 1167 1168 struct pfr_kcounters *pfrke_counters; 1169#if 0 1170 struct pfr_kroute *pfrke_route; 1171#endif 1172 } u; 1173 long pfrke_tzero; 1174 u_int8_t pfrke_af; 1175 u_int8_t pfrke_net; 1176 u_int8_t pfrke_not; 1177 u_int8_t pfrke_mark; 1178}; 1179#define pfrke_counters u.pfrke_counters 1180#define pfrke_route u.pfrke_route 1181 1182 1183SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1184RB_HEAD(pfr_ktablehead, pfr_ktable); 1185struct pfr_ktable { 1186 struct pfr_tstats pfrkt_ts; 1187 RB_ENTRY(pfr_ktable) pfrkt_tree; 1188 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1189 struct radix_node_head *pfrkt_ip4; 1190 struct radix_node_head *pfrkt_ip6; 1191 struct pfr_ktable *pfrkt_shadow; 1192 struct pfr_ktable *pfrkt_root; 1193 struct pf_ruleset *pfrkt_rs; 1194 long pfrkt_larg; 1195 int pfrkt_nflags; 1196}; 1197#define pfrkt_t pfrkt_ts.pfrts_t 1198#define pfrkt_name pfrkt_t.pfrt_name 1199#define pfrkt_anchor pfrkt_t.pfrt_anchor 1200#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1201#define pfrkt_flags pfrkt_t.pfrt_flags 1202#define pfrkt_cnt pfrkt_ts.pfrts_cnt 1203#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1204#define pfrkt_packets pfrkt_ts.pfrts_packets 1205#define pfrkt_bytes pfrkt_ts.pfrts_bytes 1206#define pfrkt_match pfrkt_ts.pfrts_match 1207#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1208#define pfrkt_tzero pfrkt_ts.pfrts_tzero 1209 1210RB_HEAD(pf_state_tree, pf_state_key); 1211RB_PROTOTYPE(pf_state_tree, pf_state_key, entry, pf_state_compare_key); 1212 1213RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1214RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key, 1215 entry_ext_gwy, pf_state_compare_ext_gwy); 1216 1217RB_HEAD(pfi_ifhead, pfi_kif); 1218 1219/* state tables */ 1220#ifdef __FreeBSD__ 1221#ifdef _KERNEL 1222VNET_DECLARE(struct pf_state_tree, pf_statetbl); 1223#define V_pf_statetbl VNET(pf_statetbl) 1224#endif 1225#else 1226extern struct pf_state_tree pf_statetbl; 1227#endif 1228 1229/* keep synced with pfi_kif, used in RB_FIND */ 1230struct pfi_kif_cmp { 1231 char pfik_name[IFNAMSIZ]; 1232}; 1233 1234struct pfi_kif { 1235 char pfik_name[IFNAMSIZ]; 1236 RB_ENTRY(pfi_kif) pfik_tree; 1237 u_int64_t pfik_packets[2][2][2]; 1238 u_int64_t pfik_bytes[2][2][2]; 1239 u_int32_t pfik_tzero; 1240 int pfik_flags; 1241 void *pfik_ah_cookie; 1242 struct ifnet *pfik_ifp; 1243 struct ifg_group *pfik_group; 1244 int pfik_states; 1245 int pfik_rules; 1246 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1247}; 1248 1249enum pfi_kif_refs { 1250 PFI_KIF_REF_NONE, 1251 PFI_KIF_REF_STATE, 1252 PFI_KIF_REF_RULE 1253}; 1254 1255#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1256 1257struct pf_pdesc { 1258 struct { 1259 int done; 1260 uid_t uid; 1261 gid_t gid; 1262 pid_t pid; 1263 } lookup; 1264 u_int64_t tot_len; /* Make Mickey money */ 1265 union { 1266 struct tcphdr *tcp; 1267 struct udphdr *udp; 1268 struct icmp *icmp; 1269#ifdef INET6 1270 struct icmp6_hdr *icmp6; 1271#endif /* INET6 */ 1272 void *any; 1273 } hdr; 1274 1275 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1276 struct ether_header 1277 *eh; 1278 struct pf_addr *src; /* src address */ 1279 struct pf_addr *dst; /* dst address */ 1280 u_int16_t *sport; 1281 u_int16_t *dport; 1282#ifdef __FreeBSD__ 1283 struct pf_mtag *pf_mtag; 1284#endif 1285 1286 u_int32_t p_len; /* total length of payload */ 1287 1288 u_int16_t *ip_sum; 1289 u_int16_t *proto_sum; 1290 u_int16_t flags; /* Let SCRUB trigger behavior in 1291 * state code. Easier than tags */ 1292#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1293#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1294 sa_family_t af; 1295 u_int8_t proto; 1296 u_int8_t tos; 1297 u_int8_t dir; /* direction */ 1298 u_int8_t sidx; /* key index for source */ 1299 u_int8_t didx; /* key index for destination */ 1300}; 1301 1302/* flags for RDR options */ 1303#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1304#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1305 1306/* Reasons code for passing/dropping a packet */ 1307#define PFRES_MATCH 0 /* Explicit match of a rule */ 1308#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1309#define PFRES_FRAG 2 /* Dropping following fragment */ 1310#define PFRES_SHORT 3 /* Dropping short packet */ 1311#define PFRES_NORM 4 /* Dropping by normalizer */ 1312#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1313#define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1314#define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1315#define PFRES_IPOPTIONS 8 /* IP option */ 1316#define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1317#define PFRES_BADSTATE 10 /* State mismatch */ 1318#define PFRES_STATEINS 11 /* State insertion failure */ 1319#define PFRES_MAXSTATES 12 /* State limit */ 1320#define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1321#define PFRES_SYNPROXY 14 /* SYN proxy */ 1322#define PFRES_MAX 15 /* total+1 */ 1323 1324#define PFRES_NAMES { \ 1325 "match", \ 1326 "bad-offset", \ 1327 "fragment", \ 1328 "short", \ 1329 "normalize", \ 1330 "memory", \ 1331 "bad-timestamp", \ 1332 "congestion", \ 1333 "ip-option", \ 1334 "proto-cksum", \ 1335 "state-mismatch", \ 1336 "state-insert", \ 1337 "state-limit", \ 1338 "src-limit", \ 1339 "synproxy", \ 1340 NULL \ 1341} 1342 1343/* Counters for other things we want to keep track of */ 1344#define LCNT_STATES 0 /* states */ 1345#define LCNT_SRCSTATES 1 /* max-src-states */ 1346#define LCNT_SRCNODES 2 /* max-src-nodes */ 1347#define LCNT_SRCCONN 3 /* max-src-conn */ 1348#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1349#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1350#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1351#define LCNT_MAX 7 /* total+1 */ 1352 1353#define LCNT_NAMES { \ 1354 "max states per rule", \ 1355 "max-src-states", \ 1356 "max-src-nodes", \ 1357 "max-src-conn", \ 1358 "max-src-conn-rate", \ 1359 "overload table insertion", \ 1360 "overload flush states", \ 1361 NULL \ 1362} 1363 1364/* UDP state enumeration */ 1365#define PFUDPS_NO_TRAFFIC 0 1366#define PFUDPS_SINGLE 1 1367#define PFUDPS_MULTIPLE 2 1368 1369#define PFUDPS_NSTATES 3 /* number of state levels */ 1370 1371#define PFUDPS_NAMES { \ 1372 "NO_TRAFFIC", \ 1373 "SINGLE", \ 1374 "MULTIPLE", \ 1375 NULL \ 1376} 1377 1378/* Other protocol state enumeration */ 1379#define PFOTHERS_NO_TRAFFIC 0 1380#define PFOTHERS_SINGLE 1 1381#define PFOTHERS_MULTIPLE 2 1382 1383#define PFOTHERS_NSTATES 3 /* number of state levels */ 1384 1385#define PFOTHERS_NAMES { \ 1386 "NO_TRAFFIC", \ 1387 "SINGLE", \ 1388 "MULTIPLE", \ 1389 NULL \ 1390} 1391 1392#define FCNT_STATE_SEARCH 0 1393#define FCNT_STATE_INSERT 1 1394#define FCNT_STATE_REMOVALS 2 1395#define FCNT_MAX 3 1396 1397#define SCNT_SRC_NODE_SEARCH 0 1398#define SCNT_SRC_NODE_INSERT 1 1399#define SCNT_SRC_NODE_REMOVALS 2 1400#define SCNT_MAX 3 1401 1402#define ACTION_SET(a, x) \ 1403 do { \ 1404 if ((a) != NULL) \ 1405 *(a) = (x); \ 1406 } while (0) 1407 1408#ifdef __FreeBSD__ 1409#define REASON_SET(a, x) \ 1410 do { \ 1411 if ((a) != NULL) \ 1412 *(a) = (x); \ 1413 if (x < PFRES_MAX) \ 1414 V_pf_status.counters[x]++; \ 1415 } while (0) 1416#else 1417#define REASON_SET(a, x) \ 1418 do { \ 1419 if ((a) != NULL) \ 1420 *(a) = (x); \ 1421 if (x < PFRES_MAX) \ 1422 pf_status.counters[x]++; \ 1423 } while (0) 1424#endif 1425 1426struct pf_status { 1427 u_int64_t counters[PFRES_MAX]; 1428 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1429 u_int64_t fcounters[FCNT_MAX]; 1430 u_int64_t scounters[SCNT_MAX]; 1431 u_int64_t pcounters[2][2][3]; 1432 u_int64_t bcounters[2][2]; 1433 u_int64_t stateid; 1434 u_int32_t running; 1435 u_int32_t states; 1436 u_int32_t src_nodes; 1437 u_int32_t since; 1438 u_int32_t debug; 1439 u_int32_t hostid; 1440 char ifname[IFNAMSIZ]; 1441 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1442}; 1443 1444struct cbq_opts { 1445 u_int minburst; 1446 u_int maxburst; 1447 u_int pktsize; 1448 u_int maxpktsize; 1449 u_int ns_per_byte; 1450 u_int maxidle; 1451 int minidle; 1452 u_int offtime; 1453 int flags; 1454}; 1455 1456struct priq_opts { 1457 int flags; 1458}; 1459 1460struct hfsc_opts { 1461 /* real-time service curve */ 1462 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1463 u_int rtsc_d; /* the x-projection of m1 in msec */ 1464 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1465 /* link-sharing service curve */ 1466 u_int lssc_m1; 1467 u_int lssc_d; 1468 u_int lssc_m2; 1469 /* upper-limit service curve */ 1470 u_int ulsc_m1; 1471 u_int ulsc_d; 1472 u_int ulsc_m2; 1473 int flags; 1474}; 1475 1476struct pf_altq { 1477 char ifname[IFNAMSIZ]; 1478 1479 void *altq_disc; /* discipline-specific state */ 1480 TAILQ_ENTRY(pf_altq) entries; 1481 1482 /* scheduler spec */ 1483 u_int8_t scheduler; /* scheduler type */ 1484 u_int16_t tbrsize; /* tokenbucket regulator size */ 1485 u_int32_t ifbandwidth; /* interface bandwidth */ 1486 1487 /* queue spec */ 1488 char qname[PF_QNAME_SIZE]; /* queue name */ 1489 char parent[PF_QNAME_SIZE]; /* parent name */ 1490 u_int32_t parent_qid; /* parent queue id */ 1491 u_int32_t bandwidth; /* queue bandwidth */ 1492 u_int8_t priority; /* priority */ 1493#ifdef __FreeBSD__ 1494 u_int8_t local_flags; /* dynamic interface */ 1495#define PFALTQ_FLAG_IF_REMOVED 0x01 1496#endif 1497 u_int16_t qlimit; /* queue size limit */ 1498 u_int16_t flags; /* misc flags */ 1499 union { 1500 struct cbq_opts cbq_opts; 1501 struct priq_opts priq_opts; 1502 struct hfsc_opts hfsc_opts; 1503 } pq_u; 1504 1505 u_int32_t qid; /* return value */ 1506}; 1507 1508struct pf_tagname { 1509 TAILQ_ENTRY(pf_tagname) entries; 1510 char name[PF_TAG_NAME_SIZE]; 1511 u_int16_t tag; 1512 int ref; 1513}; 1514 1515struct pf_divert { 1516 union { 1517 struct in_addr ipv4; 1518 struct in6_addr ipv6; 1519 } addr; 1520 u_int16_t port; 1521}; 1522 1523#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1524#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1525#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1526#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1527 1528#define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1529#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1530#define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1531 1532/* 1533 * ioctl parameter structures 1534 */ 1535 1536struct pfioc_pooladdr { 1537 u_int32_t action; 1538 u_int32_t ticket; 1539 u_int32_t nr; 1540 u_int32_t r_num; 1541 u_int8_t r_action; 1542 u_int8_t r_last; 1543 u_int8_t af; 1544 char anchor[MAXPATHLEN]; 1545 struct pf_pooladdr addr; 1546}; 1547 1548struct pfioc_rule { 1549 u_int32_t action; 1550 u_int32_t ticket; 1551 u_int32_t pool_ticket; 1552 u_int32_t nr; 1553 char anchor[MAXPATHLEN]; 1554 char anchor_call[MAXPATHLEN]; 1555 struct pf_rule rule; 1556}; 1557 1558struct pfioc_natlook { 1559 struct pf_addr saddr; 1560 struct pf_addr daddr; 1561 struct pf_addr rsaddr; 1562 struct pf_addr rdaddr; 1563 u_int16_t sport; 1564 u_int16_t dport; 1565 u_int16_t rsport; 1566 u_int16_t rdport; 1567 sa_family_t af; 1568 u_int8_t proto; 1569 u_int8_t direction; 1570}; 1571 1572struct pfioc_state { 1573 struct pfsync_state state; 1574}; 1575 1576struct pfioc_src_node_kill { 1577 sa_family_t psnk_af; 1578 struct pf_rule_addr psnk_src; 1579 struct pf_rule_addr psnk_dst; 1580 u_int psnk_killed; 1581}; 1582 1583struct pfioc_state_kill { 1584 struct pf_state_cmp psk_pfcmp; 1585 sa_family_t psk_af; 1586 int psk_proto; 1587 struct pf_rule_addr psk_src; 1588 struct pf_rule_addr psk_dst; 1589 char psk_ifname[IFNAMSIZ]; 1590 char psk_label[PF_RULE_LABEL_SIZE]; 1591 u_int psk_killed; 1592}; 1593 1594struct pfioc_states { 1595 int ps_len; 1596 union { 1597 caddr_t psu_buf; 1598 struct pfsync_state *psu_states; 1599 } ps_u; 1600#define ps_buf ps_u.psu_buf 1601#define ps_states ps_u.psu_states 1602}; 1603 1604struct pfioc_src_nodes { 1605 int psn_len; 1606 union { 1607 caddr_t psu_buf; 1608 struct pf_src_node *psu_src_nodes; 1609 } psn_u; 1610#define psn_buf psn_u.psu_buf 1611#define psn_src_nodes psn_u.psu_src_nodes 1612}; 1613 1614struct pfioc_if { 1615 char ifname[IFNAMSIZ]; 1616}; 1617 1618struct pfioc_tm { 1619 int timeout; 1620 int seconds; 1621}; 1622 1623struct pfioc_limit { 1624 int index; 1625 unsigned limit; 1626}; 1627 1628struct pfioc_altq { 1629 u_int32_t action; 1630 u_int32_t ticket; 1631 u_int32_t nr; 1632 struct pf_altq altq; 1633}; 1634 1635struct pfioc_qstats { 1636 u_int32_t ticket; 1637 u_int32_t nr; 1638 void *buf; 1639 int nbytes; 1640 u_int8_t scheduler; 1641}; 1642 1643struct pfioc_ruleset { 1644 u_int32_t nr; 1645 char path[MAXPATHLEN]; 1646 char name[PF_ANCHOR_NAME_SIZE]; 1647}; 1648 1649#define PF_RULESET_ALTQ (PF_RULESET_MAX) 1650#define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1651struct pfioc_trans { 1652 int size; /* number of elements */ 1653 int esize; /* size of each element in bytes */ 1654 struct pfioc_trans_e { 1655 int rs_num; 1656 char anchor[MAXPATHLEN]; 1657 u_int32_t ticket; 1658 } *array; 1659}; 1660 1661#define PFR_FLAG_ATOMIC 0x00000001 1662#define PFR_FLAG_DUMMY 0x00000002 1663#define PFR_FLAG_FEEDBACK 0x00000004 1664#define PFR_FLAG_CLSTATS 0x00000008 1665#define PFR_FLAG_ADDRSTOO 0x00000010 1666#define PFR_FLAG_REPLACE 0x00000020 1667#define PFR_FLAG_ALLRSETS 0x00000040 1668#define PFR_FLAG_ALLMASK 0x0000007F 1669#ifdef _KERNEL 1670#define PFR_FLAG_USERIOCTL 0x10000000 1671#endif 1672 1673struct pfioc_table { 1674 struct pfr_table pfrio_table; 1675 void *pfrio_buffer; 1676 int pfrio_esize; 1677 int pfrio_size; 1678 int pfrio_size2; 1679 int pfrio_nadd; 1680 int pfrio_ndel; 1681 int pfrio_nchange; 1682 int pfrio_flags; 1683 u_int32_t pfrio_ticket; 1684}; 1685#define pfrio_exists pfrio_nadd 1686#define pfrio_nzero pfrio_nadd 1687#define pfrio_nmatch pfrio_nadd 1688#define pfrio_naddr pfrio_size2 1689#define pfrio_setflag pfrio_size2 1690#define pfrio_clrflag pfrio_nadd 1691 1692struct pfioc_iface { 1693 char pfiio_name[IFNAMSIZ]; 1694 void *pfiio_buffer; 1695 int pfiio_esize; 1696 int pfiio_size; 1697 int pfiio_nzero; 1698 int pfiio_flags; 1699}; 1700 1701 1702/* 1703 * ioctl operations 1704 */ 1705 1706#define DIOCSTART _IO ('D', 1) 1707#define DIOCSTOP _IO ('D', 2) 1708#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1709#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1710#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1711/* XXX cut 8 - 17 */ 1712#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1713#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1714#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1715#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1716#define DIOCCLRSTATUS _IO ('D', 22) 1717#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1718#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1719#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1720#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1721/* XXX cut 26 - 28 */ 1722#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1723#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1724#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1725#define DIOCCLRRULECTRS _IO ('D', 38) 1726#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1727#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1728#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1729#define DIOCSTARTALTQ _IO ('D', 42) 1730#define DIOCSTOPALTQ _IO ('D', 43) 1731#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1732#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1733#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1734#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1735#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1736#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1737#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1738#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1739#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1740#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1741/* XXX cut 55 - 57 */ 1742#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1743#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1744#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1745#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1746#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1747#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1748#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1749#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1750#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1751#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1752#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1753#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1754#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1755#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1756#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1757#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1758#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1759#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1760#define DIOCOSFPFLUSH _IO('D', 78) 1761#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1762#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1763#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1764#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1765#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1766#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1767#define DIOCCLRSRCNODES _IO('D', 85) 1768#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1769#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1770#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1771#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1772#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 1773#ifdef __FreeBSD__ 1774struct pf_ifspeed { 1775 char ifname[IFNAMSIZ]; 1776 u_int32_t baudrate; 1777}; 1778#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 1779#endif 1780 1781#ifdef _KERNEL 1782RB_HEAD(pf_src_tree, pf_src_node); 1783RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1784#ifdef __FreeBSD__ 1785VNET_DECLARE(struct pf_src_tree, tree_src_tracking); 1786#define V_tree_src_tracking VNET(tree_src_tracking) 1787#else 1788extern struct pf_src_tree tree_src_tracking; 1789#endif 1790 1791RB_HEAD(pf_state_tree_id, pf_state); 1792RB_PROTOTYPE(pf_state_tree_id, pf_state, 1793 entry_id, pf_state_compare_id); 1794#ifdef __FreeBSD__ 1795VNET_DECLARE(struct pf_state_tree_id, tree_id); 1796#define V_tree_id VNET(tree_id) 1797VNET_DECLARE(struct pf_state_queue, state_list); 1798#define V_state_list VNET(state_list) 1799#else 1800extern struct pf_state_tree_id tree_id; 1801extern struct pf_state_queue state_list; 1802#endif 1803 1804TAILQ_HEAD(pf_poolqueue, pf_pool); 1805#ifdef __FreeBSD__ 1806VNET_DECLARE(struct pf_poolqueue, pf_pools[2]); 1807#define V_pf_pools VNET(pf_pools) 1808#else 1809extern struct pf_poolqueue pf_pools[2]; 1810#endif 1811TAILQ_HEAD(pf_altqqueue, pf_altq); 1812#ifdef __FreeBSD__ 1813VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]); 1814#define V_pf_altqs VNET(pf_altqs) 1815VNET_DECLARE(struct pf_palist, pf_pabuf); 1816#define V_pf_pabuf VNET(pf_pabuf) 1817#else 1818extern struct pf_altqqueue pf_altqs[2]; 1819extern struct pf_palist pf_pabuf; 1820#endif 1821 1822#ifdef __FreeBSD__ 1823VNET_DECLARE(u_int32_t, ticket_altqs_active); 1824#define V_ticket_altqs_active VNET(ticket_altqs_active) 1825VNET_DECLARE(u_int32_t, ticket_altqs_inactive); 1826#define V_ticket_altqs_inactive VNET(ticket_altqs_inactive) 1827VNET_DECLARE(int, altqs_inactive_open); 1828#define V_altqs_inactive_open VNET(altqs_inactive_open) 1829VNET_DECLARE(u_int32_t, ticket_pabuf); 1830#define V_ticket_pabuf VNET(ticket_pabuf) 1831VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active); 1832#define V_pf_altqs_active VNET(pf_altqs_active) 1833VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive); 1834#define V_pf_altqs_inactive VNET(pf_altqs_inactive) 1835VNET_DECLARE(struct pf_poolqueue *, pf_pools_active); 1836#define V_pf_pools_active VNET(pf_pools_active) 1837VNET_DECLARE(struct pf_poolqueue *, pf_pools_inactive); 1838#define V_pf_pools_inactive VNET(pf_pools_inactive) 1839#else 1840extern u_int32_t ticket_altqs_active; 1841extern u_int32_t ticket_altqs_inactive; 1842extern int altqs_inactive_open; 1843extern u_int32_t ticket_pabuf; 1844extern struct pf_altqqueue *pf_altqs_active; 1845extern struct pf_altqqueue *pf_altqs_inactive; 1846extern struct pf_poolqueue *pf_pools_active; 1847extern struct pf_poolqueue *pf_pools_inactive; 1848#endif 1849extern int pf_tbladdr_setup(struct pf_ruleset *, 1850 struct pf_addr_wrap *); 1851extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1852extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1853extern void pf_calc_skip_steps(struct pf_rulequeue *); 1854#ifdef __FreeBSD__ 1855#ifdef ALTQ 1856extern void pf_altq_ifnet_event(struct ifnet *, int); 1857#endif 1858VNET_DECLARE(uma_zone_t, pf_src_tree_pl); 1859#define V_pf_src_tree_pl VNET(pf_src_tree_pl) 1860VNET_DECLARE(uma_zone_t, pf_rule_pl); 1861#define V_pf_rule_pl VNET(pf_rule_pl) 1862VNET_DECLARE(uma_zone_t, pf_state_pl); 1863#define V_pf_state_pl VNET(pf_state_pl) 1864VNET_DECLARE(uma_zone_t, pf_state_key_pl); 1865#define V_pf_state_key_pl VNET(pf_state_key_pl) 1866VNET_DECLARE(uma_zone_t, pf_state_item_pl); 1867#define V_pf_state_item_pl VNET(pf_state_item_pl) 1868VNET_DECLARE(uma_zone_t, pf_altq_pl); 1869#define V_pf_altq_pl VNET(pf_altq_pl) 1870VNET_DECLARE(uma_zone_t, pf_pooladdr_pl); 1871#define V_pf_pooladdr_pl VNET(pf_pooladdr_pl) 1872VNET_DECLARE(uma_zone_t, pfr_ktable_pl); 1873#define V_pfr_ktable_pl VNET(pfr_ktable_pl) 1874VNET_DECLARE(uma_zone_t, pfr_kentry_pl); 1875#define V_pfr_kentry_pl VNET(pfr_kentry_pl) 1876VNET_DECLARE(uma_zone_t, pf_cache_pl); 1877#define V_pf_cache_pl VNET(pf_cache_pl) 1878VNET_DECLARE(uma_zone_t, pf_cent_pl); 1879#define V_pf_cent_pl VNET(pf_cent_pl) 1880VNET_DECLARE(uma_zone_t, pf_state_scrub_pl); 1881#define V_pf_state_scrub_pl VNET(pf_state_scrub_pl) 1882VNET_DECLARE(uma_zone_t, pfi_addr_pl); 1883#define V_pfi_addr_pl VNET(pfi_addr_pl) 1884#else 1885extern struct pool pf_src_tree_pl, pf_rule_pl; 1886extern struct pool pf_state_pl, pf_state_key_pl, pf_state_item_pl, 1887 pf_altq_pl, pf_pooladdr_pl; 1888extern struct pool pf_state_scrub_pl; 1889#endif 1890extern void pf_purge_thread(void *); 1891#ifdef __FreeBSD__ 1892extern int pf_purge_expired_src_nodes(int); 1893extern int pf_purge_expired_states(u_int32_t , int); 1894#else 1895extern void pf_purge_expired_src_nodes(int); 1896extern void pf_purge_expired_states(u_int32_t); 1897#endif 1898extern void pf_unlink_state(struct pf_state *); 1899extern void pf_free_state(struct pf_state *); 1900extern int pf_state_insert(struct pfi_kif *, 1901 struct pf_state_key *, 1902 struct pf_state_key *, 1903 struct pf_state *); 1904extern int pf_insert_src_node(struct pf_src_node **, 1905 struct pf_rule *, struct pf_addr *, 1906 sa_family_t); 1907void pf_src_tree_remove_state(struct pf_state *); 1908extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 1909extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 1910 u_int, int *); 1911extern void pf_print_state(struct pf_state *); 1912extern void pf_print_flags(u_int8_t); 1913extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1914 u_int8_t); 1915 1916#ifdef __FreeBSD__ 1917VNET_DECLARE(struct ifnet *, sync_ifp); 1918#define V_sync_ifp VNET(sync_ifp); 1919VNET_DECLARE(struct pf_rule, pf_default_rule); 1920#define V_pf_default_rule VNET(pf_default_rule) 1921#else 1922extern struct ifnet *sync_ifp; 1923extern struct pf_rule pf_default_rule; 1924#endif 1925extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1926 u_int8_t); 1927void pf_rm_rule(struct pf_rulequeue *, 1928 struct pf_rule *); 1929#ifndef __FreeBSD__ 1930struct pf_divert *pf_find_divert(struct mbuf *); 1931#endif 1932 1933#ifdef INET 1934#ifdef __FreeBSD__ 1935int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *, 1936 struct inpcb *); 1937#else 1938int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *); 1939#endif 1940#endif /* INET */ 1941 1942#ifdef INET6 1943#ifdef __FreeBSD__ 1944int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *, 1945 struct inpcb *); 1946#else 1947int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *); 1948#endif 1949void pf_poolmask(struct pf_addr *, struct pf_addr*, 1950 struct pf_addr *, struct pf_addr *, u_int8_t); 1951void pf_addr_inc(struct pf_addr *, sa_family_t); 1952#endif /* INET6 */ 1953 1954#ifdef __FreeBSD__ 1955u_int32_t pf_new_isn(struct pf_state *); 1956#endif 1957void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1958 sa_family_t); 1959void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1960int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1961 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *, 1962 struct pf_pdesc *); 1963void pf_send_deferred_syn(struct pf_state *); 1964int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1965 struct pf_addr *, sa_family_t); 1966int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 1967 struct pf_addr *, sa_family_t); 1968int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1969int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1970int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1971int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1972 1973void pf_normalize_init(void); 1974int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1975 struct pf_pdesc *); 1976int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1977 struct pf_pdesc *); 1978int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1979 struct pf_pdesc *); 1980void pf_normalize_tcp_cleanup(struct pf_state *); 1981int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1982 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1983int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1984 u_short *, struct tcphdr *, struct pf_state *, 1985 struct pf_state_peer *, struct pf_state_peer *, int *); 1986u_int32_t 1987 pf_state_expires(const struct pf_state *); 1988void pf_purge_expired_fragments(void); 1989int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *); 1990int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); 1991#ifdef __FreeBSD__ 1992int pf_socket_lookup(int, struct pf_pdesc *, struct inpcb *); 1993#else 1994int pf_socket_lookup(int, struct pf_pdesc *); 1995#endif 1996struct pf_state_key *pf_alloc_state_key(int); 1997void pf_pkt_addr_changed(struct mbuf *); 1998int pf_state_key_attach(struct pf_state_key *, struct pf_state *, int); 1999void pfr_initialize(void); 2000int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 2001void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 2002 u_int64_t, int, int, int); 2003int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 2004 struct pf_addr **, struct pf_addr **, sa_family_t); 2005void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 2006struct pfr_ktable * 2007 pfr_attach_table(struct pf_ruleset *, char *, int); 2008void pfr_detach_table(struct pfr_ktable *); 2009int pfr_clr_tables(struct pfr_table *, int *, int); 2010int pfr_add_tables(struct pfr_table *, int, int *, int); 2011int pfr_del_tables(struct pfr_table *, int, int *, int); 2012int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 2013int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 2014int pfr_clr_tstats(struct pfr_table *, int, int *, int); 2015int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 2016int pfr_clr_addrs(struct pfr_table *, int *, int); 2017int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 2018int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2019 int); 2020int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2021 int); 2022int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2023 int *, int *, int *, int, u_int32_t); 2024int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 2025int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 2026int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 2027 int); 2028int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 2029 int); 2030int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 2031int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 2032int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 2033int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 2034 int *, u_int32_t, int); 2035 2036#ifdef __FreeBSD__ 2037VNET_DECLARE(struct pfi_kif *, pfi_all); 2038#define V_pfi_all VNET(pfi_all) 2039#else 2040extern struct pfi_kif *pfi_all; 2041#endif 2042 2043void pfi_initialize(void); 2044#ifdef __FreeBSD__ 2045void pfi_cleanup(void); 2046#endif 2047struct pfi_kif *pfi_kif_get(const char *); 2048void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2049void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2050int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2051void pfi_attach_ifnet(struct ifnet *); 2052void pfi_detach_ifnet(struct ifnet *); 2053void pfi_attach_ifgroup(struct ifg_group *); 2054void pfi_detach_ifgroup(struct ifg_group *); 2055void pfi_group_change(const char *); 2056int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2057 sa_family_t); 2058int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2059void pfi_dynaddr_remove(struct pf_addr_wrap *); 2060void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2061void pfi_update_status(const char *, struct pf_status *); 2062int pfi_get_ifaces(const char *, struct pfi_kif *, int *); 2063int pfi_set_flags(const char *, int); 2064int pfi_clear_flags(const char *, int); 2065 2066#ifdef __FreeBSD__ 2067int pf_match_tag(struct mbuf *, struct pf_rule *, int *, 2068 struct pf_mtag *); 2069#else 2070int pf_match_tag(struct mbuf *, struct pf_rule *, int *); 2071#endif 2072u_int16_t pf_tagname2tag(char *); 2073void pf_tag2tagname(u_int16_t, char *); 2074void pf_tag_ref(u_int16_t); 2075void pf_tag_unref(u_int16_t); 2076#ifdef __FreeBSD__ 2077int pf_tag_packet(struct mbuf *, int, int, struct pf_mtag *); 2078#else 2079int pf_tag_packet(struct mbuf *, int, int); 2080#endif 2081u_int32_t pf_qname2qid(char *); 2082void pf_qid2qname(u_int32_t, char *); 2083void pf_qid_unref(u_int32_t); 2084 2085#ifdef __FreeBSD__ 2086VNET_DECLARE(struct pf_status, pf_status); 2087#define V_pf_status VNET(pf_status) 2088#else 2089extern struct pf_status pf_status; 2090#endif 2091 2092#ifdef __FreeBSD__ 2093VNET_DECLARE(uma_zone_t, pf_frent_pl); 2094#define V_pf_frent_pl VNET(pf_frent_pl) 2095VNET_DECLARE(uma_zone_t, pf_frag_pl); 2096#define V_pf_frag_pl VNET(pf_frag_pl) 2097VNET_DECLARE(struct sx, pf_consistency_lock); 2098#define V_pf_consistency_lock VNET(pf_consistency_lock) 2099#else 2100extern struct pool pf_frent_pl, pf_frag_pl; 2101extern struct rwlock pf_consistency_lock; 2102#endif 2103 2104struct pf_pool_limit { 2105 void *pp; 2106 unsigned limit; 2107}; 2108#ifdef __FreeBSD__ 2109VNET_DECLARE(struct pf_pool_limit, pf_pool_limits[PF_LIMIT_MAX]); 2110#define V_pf_pool_limits VNET(pf_pool_limits) 2111#else 2112extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2113#endif 2114 2115#ifdef __FreeBSD__ 2116struct pf_frent { 2117 LIST_ENTRY(pf_frent) fr_next; 2118 struct ip *fr_ip; 2119 struct mbuf *fr_m; 2120}; 2121 2122struct pf_frcache { 2123 LIST_ENTRY(pf_frcache) fr_next; 2124 uint16_t fr_off; 2125 uint16_t fr_end; 2126}; 2127 2128struct pf_fragment { 2129 RB_ENTRY(pf_fragment) fr_entry; 2130 TAILQ_ENTRY(pf_fragment) frag_next; 2131 struct in_addr fr_src; 2132 struct in_addr fr_dst; 2133 u_int8_t fr_p; /* protocol of this fragment */ 2134 u_int8_t fr_flags; /* status flags */ 2135 u_int16_t fr_id; /* fragment id for reassemble */ 2136 u_int16_t fr_max; /* fragment data max */ 2137 u_int32_t fr_timeout; 2138#define fr_queue fr_u.fru_queue 2139#define fr_cache fr_u.fru_cache 2140 union { 2141 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 2142 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 2143 } fr_u; 2144}; 2145#endif /* (__FreeBSD__) */ 2146 2147#endif /* _KERNEL */ 2148 2149#ifdef __FreeBSD__ 2150#ifdef _KERNEL 2151VNET_DECLARE(struct pf_anchor_global, pf_anchors); 2152#define V_pf_anchors VNET(pf_anchors) 2153VNET_DECLARE(struct pf_anchor, pf_main_anchor); 2154#define V_pf_main_anchor VNET(pf_main_anchor) 2155#define pf_main_ruleset V_pf_main_anchor.ruleset 2156#endif 2157#else 2158extern struct pf_anchor_global pf_anchors; 2159extern struct pf_anchor pf_main_anchor; 2160#define pf_main_ruleset pf_main_anchor.ruleset 2161#endif 2162 2163/* these ruleset functions can be linked into userland programs (pfctl) */ 2164int pf_get_ruleset_number(u_int8_t); 2165void pf_init_ruleset(struct pf_ruleset *); 2166int pf_anchor_setup(struct pf_rule *, 2167 const struct pf_ruleset *, const char *); 2168int pf_anchor_copyout(const struct pf_ruleset *, 2169 const struct pf_rule *, struct pfioc_rule *); 2170void pf_anchor_remove(struct pf_rule *); 2171void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2172struct pf_anchor *pf_find_anchor(const char *); 2173struct pf_ruleset *pf_find_ruleset(const char *); 2174struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2175void pf_rs_initialize(void); 2176 2177#ifndef __FreeBSD__ 2178#ifdef _KERNEL 2179int pf_anchor_copyout(const struct pf_ruleset *, 2180 const struct pf_rule *, struct pfioc_rule *); 2181void pf_anchor_remove(struct pf_rule *); 2182 2183#endif /* _KERNEL */ 2184#endif 2185 2186/* The fingerprint functions can be linked into userland programs (tcpdump) */ 2187int pf_osfp_add(struct pf_osfp_ioctl *); 2188#ifdef _KERNEL 2189struct pf_osfp_enlist * 2190 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 2191 const struct tcphdr *); 2192#endif /* _KERNEL */ 2193struct pf_osfp_enlist * 2194 pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *, 2195 const struct tcphdr *); 2196void pf_osfp_flush(void); 2197int pf_osfp_get(struct pf_osfp_ioctl *); 2198#ifdef __FreeBSD__ 2199int pf_osfp_initialize(void); 2200void pf_osfp_cleanup(void); 2201#else 2202void pf_osfp_initialize(void); 2203#endif 2204int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2205struct pf_os_fingerprint * 2206 pf_osfp_validate(void); 2207 2208#ifdef _KERNEL 2209void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t); 2210 2211void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2212 struct pf_rule **, struct pf_rule **, int *); 2213int pf_step_out_of_anchor(int *, struct pf_ruleset **, 2214 int, struct pf_rule **, struct pf_rule **, 2215 int *); 2216 2217int pf_map_addr(u_int8_t, struct pf_rule *, 2218 struct pf_addr *, struct pf_addr *, 2219 struct pf_addr *, struct pf_src_node **); 2220struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *, 2221 int, int, struct pfi_kif *, struct pf_src_node **, 2222 struct pf_state_key **, struct pf_state_key **, 2223 struct pf_state_key **, struct pf_state_key **, 2224 struct pf_addr *, struct pf_addr *, 2225 u_int16_t, u_int16_t); 2226 2227int pf_state_key_setup(struct pf_pdesc *, struct pf_rule *, 2228 struct pf_state_key **, struct pf_state_key **, 2229 struct pf_state_key **, struct pf_state_key **, 2230 struct pf_addr *, struct pf_addr *, 2231 u_int16_t, u_int16_t); 2232#endif /* _KERNEL */ 2233 2234 2235#endif /* _NET_PFVAR_H_ */ 2236