pfvar.h revision 126261
1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 126261 2004-02-26 02:34:12Z mlaier $ */ 2/* $OpenBSD: pfvar.h,v 1.170 2003/08/22 21:50:34 david Exp $ */ 3 4/* 5 * Copyright (c) 2001 Daniel Hartmeier 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 */ 33 34#ifndef _NET_PFVAR_H_ 35#define _NET_PFVAR_H_ 36 37#include <sys/types.h> 38#include <sys/queue.h> 39#include <sys/tree.h> 40 41#include <net/radix.h> 42#if defined(__FreeBSD__) 43#include <vm/uma.h> 44#else 45#include <netinet/ip_ipsp.h> 46#endif 47 48#if defined(__FreeBSD__) 49#include <netinet/in.h> 50/* 51 * XXX 52 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 53 * This makes pfctl compilation difficult. 54 */ 55union sockaddr_union { 56 struct sockaddr sa; 57 struct sockaddr_in sin; 58 struct sockaddr_in6 sin6; 59}; 60#endif 61 62#include <netinet/tcp_fsm.h> 63 64struct ip; 65 66#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 67#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 68 69enum { PF_INOUT, PF_IN, PF_OUT }; 70enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 71 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 72enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 73 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 74enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 75 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 76enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 77enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 78 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 79 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 80/* 81 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 82 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 83 */ 84enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 85 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 86 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 87 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 88 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 89 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 90 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_MAX, 91 PFTM_PURGE, PFTM_UNTIL_PACKET }; 92enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 93enum { PF_LIMIT_STATES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 94#define PF_POOL_IDMASK 0x0f 95enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 96 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 97enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 98 PF_ADDR_TABLE }; 99#define PF_POOL_TYPEMASK 0x0f 100#define PF_WSCALE_FLAG 0x80 101#define PF_WSCALE_MASK 0x0f 102 103struct pf_addr { 104 union { 105 struct in_addr v4; 106 struct in6_addr v6; 107 u_int8_t addr8[16]; 108 u_int16_t addr16[8]; 109 u_int32_t addr32[4]; 110 } pfa; /* 128-bit address */ 111#define v4 pfa.v4 112#define v6 pfa.v6 113#define addr8 pfa.addr8 114#define addr16 pfa.addr16 115#define addr32 pfa.addr32 116}; 117 118#define PF_TABLE_NAME_SIZE 32 119 120struct pf_addr_wrap { 121 union { 122 struct { 123 struct pf_addr addr; 124 struct pf_addr mask; 125 } a; 126 char ifname[IFNAMSIZ]; 127 char tblname[PF_TABLE_NAME_SIZE]; 128 } v; 129 union { 130 struct pf_addr_dyn *dyn; 131 struct pfr_ktable *tbl; 132 int tblcnt; 133 } p; 134 u_int8_t type; /* PF_ADDR_* */ 135}; 136 137struct pf_addr_dyn { 138 char ifname[IFNAMSIZ]; 139 struct ifnet *ifp; 140 struct pf_addr *addr; 141 sa_family_t af; 142#if defined(__FreeBSD__) && defined(HOOK_HACK) 143 eventhandler_tag hook_cookie; 144#else 145 void *hook_cookie; 146#endif 147 u_int8_t undefined; 148}; 149 150/* 151 * Address manipulation macros 152 */ 153 154#ifdef _KERNEL 155 156#if defined(__FreeBSD__) 157#define splsoftnet() splnet() 158 159#define PF_NAME "pf" 160 161#define PR_NOWAIT M_NOWAIT 162#define pool_get(p, f) uma_zalloc(*(p), (f)) 163#define pool_put(p, o) uma_zfree(*(p), (o)) 164 165#define UMA_CREATE(var, type, desc) \ 166 var = uma_zcreate(desc, sizeof(type), \ 167 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 168 if (var == NULL) break 169#define UMA_DESTROY(var) \ 170 if(var) uma_zdestroy(var) 171 172extern struct mtx pf_task_mtx; 173#if defined(ALTQ) 174extern struct mtx pf_altq_mtx; 175extern int pfaltq_ref; 176#endif 177 178#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h)) 179 180#define PF_LOCK() do { \ 181 PF_ASSERT(MA_NOTOWNED); \ 182 mtx_lock(&pf_task_mtx); \ 183} while(0) 184#define PF_UNLOCK() do { \ 185 PF_ASSERT(MA_OWNED); \ 186 mtx_unlock(&pf_task_mtx); \ 187} while(0) 188 189#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 190 PF_UNLOCK(); \ 191 r = copyin((uaddr), (kaddr), (len)); \ 192 PF_LOCK(); \ 193} while(0) 194 195#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 196 PF_UNLOCK(); \ 197 r = copyout((kaddr), (uaddr), (len)); \ 198 PF_LOCK(); \ 199} while(0) 200 201extern void init_pf_mutex(void); 202extern void destroy_pf_mutex(void); 203 204#define PF_MODVER 1 205#define PFLOG_MODVER 1 206#define PFSYNC_MODVER 1 207 208#define PFLOG_MINVER 1 209#define PFLOG_PREFVER PFLOG_MODVER 210#define PFLOG_MAXVER 1 211#define PFSYNC_MINVER 1 212#define PFSYNC_PREFVER PFSYNC_MODVER 213#define PFSYNC_MAXVER 1 214#endif 215 216#ifdef INET 217#ifndef INET6 218#define PF_INET_ONLY 219#endif /* ! INET6 */ 220#endif /* INET */ 221 222#ifdef INET6 223#ifndef INET 224#define PF_INET6_ONLY 225#endif /* ! INET */ 226#endif /* INET6 */ 227 228#ifdef INET 229#ifdef INET6 230#define PF_INET_INET6 231#endif /* INET6 */ 232#endif /* INET */ 233 234#else 235 236#define PF_INET_INET6 237 238#endif /* _KERNEL */ 239 240/* Both IPv4 and IPv6 */ 241#ifdef PF_INET_INET6 242 243#define PF_AEQ(a, b, c) \ 244 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 245 ((a)->addr32[3] == (b)->addr32[3] && \ 246 (a)->addr32[2] == (b)->addr32[2] && \ 247 (a)->addr32[1] == (b)->addr32[1] && \ 248 (a)->addr32[0] == (b)->addr32[0])) \ 249 250#define PF_ANEQ(a, b, c) \ 251 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 252 ((a)->addr32[3] != (b)->addr32[3] || \ 253 (a)->addr32[2] != (b)->addr32[2] || \ 254 (a)->addr32[1] != (b)->addr32[1] || \ 255 (a)->addr32[0] != (b)->addr32[0])) \ 256 257#define PF_AZERO(a, c) \ 258 ((c == AF_INET && !(a)->addr32[0]) || \ 259 (!(a)->addr32[0] && !(a)->addr32[1] && \ 260 !(a)->addr32[2] && !(a)->addr32[3] )) \ 261 262#define PF_MATCHA(n, a, m, b, f) \ 263 pf_match_addr(n, a, m, b, f) 264 265#define PF_ACPY(a, b, f) \ 266 pf_addrcpy(a, b, f) 267 268#define PF_AINC(a, f) \ 269 pf_addr_inc(a, f) 270 271#define PF_POOLMASK(a, b, c, d, f) \ 272 pf_poolmask(a, b, c, d, f) 273 274#else 275 276/* Just IPv6 */ 277 278#ifdef PF_INET6_ONLY 279 280#define PF_AEQ(a, b, c) \ 281 ((a)->addr32[3] == (b)->addr32[3] && \ 282 (a)->addr32[2] == (b)->addr32[2] && \ 283 (a)->addr32[1] == (b)->addr32[1] && \ 284 (a)->addr32[0] == (b)->addr32[0]) \ 285 286#define PF_ANEQ(a, b, c) \ 287 ((a)->addr32[3] != (b)->addr32[3] || \ 288 (a)->addr32[2] != (b)->addr32[2] || \ 289 (a)->addr32[1] != (b)->addr32[1] || \ 290 (a)->addr32[0] != (b)->addr32[0]) \ 291 292#define PF_AZERO(a, c) \ 293 (!(a)->addr32[0] && \ 294 !(a)->addr32[1] && \ 295 !(a)->addr32[2] && \ 296 !(a)->addr32[3] ) \ 297 298#define PF_MATCHA(n, a, m, b, f) \ 299 pf_match_addr(n, a, m, b, f) 300 301#define PF_ACPY(a, b, f) \ 302 pf_addrcpy(a, b, f) 303 304#define PF_AINC(a, f) \ 305 pf_addr_inc(a, f) 306 307#define PF_POOLMASK(a, b, c, d, f) \ 308 pf_poolmask(a, b, c, d, f) 309 310#else 311 312/* Just IPv4 */ 313#ifdef PF_INET_ONLY 314 315#define PF_AEQ(a, b, c) \ 316 ((a)->addr32[0] == (b)->addr32[0]) 317 318#define PF_ANEQ(a, b, c) \ 319 ((a)->addr32[0] != (b)->addr32[0]) 320 321#define PF_AZERO(a, c) \ 322 (!(a)->addr32[0]) 323 324#define PF_MATCHA(n, a, m, b, f) \ 325 pf_match_addr(n, a, m, b, f) 326 327#define PF_ACPY(a, b, f) \ 328 (a)->v4.s_addr = (b)->v4.s_addr 329 330#define PF_AINC(a, f) \ 331 do { \ 332 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 333 } while (0) 334 335#define PF_POOLMASK(a, b, c, d, f) \ 336 do { \ 337 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 338 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 339 } while (0) 340 341#endif /* PF_INET_ONLY */ 342#endif /* PF_INET6_ONLY */ 343#endif /* PF_INET_INET6 */ 344 345#define PF_MISMATCHAW(aw, x, af, not) \ 346 ( \ 347 (((aw)->type == PF_ADDR_NOROUTE && \ 348 pf_routable((x), (af))) || \ 349 ((aw)->type == PF_ADDR_TABLE && \ 350 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 351 ((aw)->type == PF_ADDR_DYNIFTL && \ 352 ((aw)->p.dyn->undefined || \ 353 (!PF_AZERO(&(aw)->v.a.mask, (af)) && \ 354 !PF_MATCHA(0, &(aw)->v.a.addr, \ 355 &(aw)->v.a.mask, (x), (af))))) || \ 356 ((aw)->type == PF_ADDR_ADDRMASK && \ 357 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 358 !PF_MATCHA(0, &(aw)->v.a.addr, \ 359 &(aw)->v.a.mask, (x), (af)))) != \ 360 (not) \ 361 ) 362 363struct pf_rule_uid { 364 uid_t uid[2]; 365 u_int8_t op; 366}; 367 368struct pf_rule_gid { 369 uid_t gid[2]; 370 u_int8_t op; 371}; 372 373struct pf_rule_addr { 374 struct pf_addr_wrap addr; 375 u_int16_t port[2]; 376 u_int8_t not; 377 u_int8_t port_op; 378}; 379 380struct pf_pooladdr { 381 struct pf_addr_wrap addr; 382 TAILQ_ENTRY(pf_pooladdr) entries; 383 char ifname[IFNAMSIZ]; 384 struct ifnet *ifp; 385}; 386 387TAILQ_HEAD(pf_palist, pf_pooladdr); 388 389struct pf_poolhashkey { 390 union { 391 u_int8_t key8[16]; 392 u_int16_t key16[8]; 393 u_int32_t key32[4]; 394 } pfk; /* 128-bit hash key */ 395#define key8 pfk.key8 396#define key16 pfk.key16 397#define key32 pfk.key32 398}; 399 400struct pf_pool { 401 struct pf_palist list; 402 struct pf_pooladdr *cur; 403 struct pf_poolhashkey key; 404 struct pf_addr counter; 405 int tblidx; 406 u_int16_t proxy_port[2]; 407 u_int8_t port_op; 408 u_int8_t opts; 409}; 410 411 412/* A packed Operating System description for fingerprinting */ 413typedef u_int32_t pf_osfp_t; 414#define PF_OSFP_ANY ((pf_osfp_t)0) 415#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 416#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 417 418struct pf_osfp_entry { 419 SLIST_ENTRY(pf_osfp_entry) fp_entry; 420 pf_osfp_t fp_os; 421 int fp_enflags; 422#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 423#define PF_OSFP_GENERIC 0x002 /* generic signature */ 424#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 425#define PF_OSFP_LEN 32 426 char fp_class_nm[PF_OSFP_LEN]; 427 char fp_version_nm[PF_OSFP_LEN]; 428 char fp_subtype_nm[PF_OSFP_LEN]; 429}; 430#define PF_OSFP_ENTRY_EQ(a, b) \ 431 ((a)->fp_os == (b)->fp_os && \ 432 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 433 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 434 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 435 436/* handle pf_osfp_t packing */ 437#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 438#define _FP_UNUSED_BITS 1 439#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 440#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 441#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 442#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 443 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 444 ((1 << _FP_CLASS_BITS) - 1); \ 445 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 446 ((1 << _FP_VERSION_BITS) - 1);\ 447 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 448} while(0) 449#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 450 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 451 + _FP_SUBTYPE_BITS); \ 452 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 453 _FP_SUBTYPE_BITS; \ 454 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 455} while(0) 456 457/* the fingerprint of an OSes TCP SYN packet */ 458typedef u_int64_t pf_tcpopts_t; 459struct pf_os_fingerprint { 460 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 461 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 462 u_int16_t fp_wsize; /* TCP window size */ 463 u_int16_t fp_psize; /* ip->ip_len */ 464 u_int16_t fp_mss; /* TCP MSS */ 465 u_int16_t fp_flags; 466#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 467#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 468#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 469#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 470#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 471#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 472#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 473#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 474#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 475#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 476#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 477#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 478#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 479#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 480 u_int8_t fp_optcnt; /* TCP option count */ 481 u_int8_t fp_wscale; /* TCP window scaling */ 482 u_int8_t fp_ttl; /* IPv4 TTL */ 483#define PF_OSFP_MAXTTL_OFFSET 40 484/* TCP options packing */ 485#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 486#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 487#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 488#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 489#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 490#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 491#define PF_OSFP_MAX_OPTS \ 492 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 493 / PF_OSFP_TCPOPT_BITS 494 495 SLIST_ENTRY(pf_os_fingerprint) fp_next; 496}; 497 498struct pf_osfp_ioctl { 499 struct pf_osfp_entry fp_os; 500 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 501 u_int16_t fp_wsize; /* TCP window size */ 502 u_int16_t fp_psize; /* ip->ip_len */ 503 u_int16_t fp_mss; /* TCP MSS */ 504 u_int16_t fp_flags; 505 u_int8_t fp_optcnt; /* TCP option count */ 506 u_int8_t fp_wscale; /* TCP window scaling */ 507 u_int8_t fp_ttl; /* IPv4 TTL */ 508 509 int fp_getnum; /* DIOCOSFPGET number */ 510}; 511 512 513union pf_rule_ptr { 514 struct pf_rule *ptr; 515 u_int32_t nr; 516}; 517 518struct pf_rule { 519 struct pf_rule_addr src; 520 struct pf_rule_addr dst; 521#define PF_SKIP_IFP 0 522#define PF_SKIP_DIR 1 523#define PF_SKIP_AF 2 524#define PF_SKIP_PROTO 3 525#define PF_SKIP_SRC_ADDR 4 526#define PF_SKIP_SRC_PORT 5 527#define PF_SKIP_DST_ADDR 6 528#define PF_SKIP_DST_PORT 7 529#define PF_SKIP_COUNT 8 530 union pf_rule_ptr skip[PF_SKIP_COUNT]; 531#define PF_RULE_LABEL_SIZE 64 532 char label[PF_RULE_LABEL_SIZE]; 533 u_int32_t timeout[PFTM_MAX]; 534#define PF_QNAME_SIZE 16 535 char ifname[IFNAMSIZ]; 536 char qname[PF_QNAME_SIZE]; 537 char pqname[PF_QNAME_SIZE]; 538#define PF_ANCHOR_NAME_SIZE 16 539 char anchorname[PF_ANCHOR_NAME_SIZE]; 540#define PF_TAG_NAME_SIZE 16 541 char tagname[PF_TAG_NAME_SIZE]; 542 char match_tagname[PF_TAG_NAME_SIZE]; 543 544 TAILQ_ENTRY(pf_rule) entries; 545 struct pf_pool rpool; 546 547 u_int64_t evaluations; 548 u_int64_t packets; 549 u_int64_t bytes; 550 551 struct ifnet *ifp; 552 struct pf_anchor *anchor; 553 554 pf_osfp_t os_fingerprint; 555 u_int32_t states; 556 u_int32_t max_states; 557 u_int32_t qid; 558 u_int32_t pqid; 559 u_int32_t rt_listid; 560 u_int32_t nr; 561 562 u_int16_t return_icmp; 563 u_int16_t return_icmp6; 564 u_int16_t max_mss; 565 u_int16_t tag; 566 u_int16_t match_tag; 567 568 struct pf_rule_uid uid; 569 struct pf_rule_gid gid; 570 571 u_int32_t rule_flag; 572 u_int8_t action; 573 u_int8_t direction; 574 u_int8_t log; 575 u_int8_t quick; 576 u_int8_t ifnot; 577 u_int8_t match_tag_not; 578 u_int8_t natpass; 579 580#define PF_STATE_NORMAL 0x1 581#define PF_STATE_MODULATE 0x2 582#define PF_STATE_SYNPROXY 0x3 583 u_int8_t keep_state; 584 sa_family_t af; 585 u_int8_t proto; 586 u_int8_t type; 587 u_int8_t code; 588 u_int8_t flags; 589 u_int8_t flagset; 590 u_int8_t min_ttl; 591 u_int8_t allow_opts; 592 u_int8_t rt; 593 u_int8_t return_ttl; 594 u_int8_t tos; 595}; 596 597/* rule flags */ 598#define PFRULE_DROP 0x0000 599#define PFRULE_RETURNRST 0x0001 600#define PFRULE_FRAGMENT 0x0002 601#define PFRULE_RETURNICMP 0x0004 602#define PFRULE_RETURN 0x0008 603 604/* scrub flags */ 605#define PFRULE_NODF 0x0100 606#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 607#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 608#define PFRULE_RANDOMID 0x0800 609#define PFRULE_REASSEMBLE_TCP 0x1000 610 611#define PFSTATE_HIWAT 10000 /* default state table size */ 612 613 614struct pf_state_scrub { 615 u_int16_t pfss_flags; 616#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 617 u_int8_t pfss_ttl; /* stashed TTL */ 618 u_int8_t pad; 619 u_int32_t pfss_ts_mod; /* timestamp modulation */ 620}; 621 622struct pf_state_host { 623 struct pf_addr addr; 624 u_int16_t port; 625 u_int16_t pad; 626}; 627 628struct pf_state_peer { 629 u_int32_t seqlo; /* Max sequence number sent */ 630 u_int32_t seqhi; /* Max the other end ACKd + win */ 631 u_int32_t seqdiff; /* Sequence number modulator */ 632 u_int16_t max_win; /* largest window (pre scaling) */ 633 u_int8_t state; /* active state level */ 634 u_int8_t wscale; /* window scaling factor */ 635 u_int16_t mss; /* Maximum segment size option */ 636 struct pf_state_scrub *scrub; /* state is scrubbed */ 637}; 638 639struct pf_state { 640 struct pf_state_host lan; 641 struct pf_state_host gwy; 642 struct pf_state_host ext; 643 struct pf_state_peer src; 644 struct pf_state_peer dst; 645 union pf_rule_ptr rule; 646 union pf_rule_ptr anchor; 647 union pf_rule_ptr nat_rule; 648 struct pf_addr rt_addr; 649 struct ifnet *rt_ifp; 650 u_int32_t creation; 651 u_int32_t expire; 652 u_int32_t packets[2]; 653 u_int32_t bytes[2]; 654 sa_family_t af; 655 u_int8_t proto; 656 u_int8_t direction; 657 u_int8_t log; 658 u_int8_t allow_opts; 659 u_int8_t timeout; 660 u_int8_t pad[2]; 661}; 662 663struct pf_tree_node { 664 RB_ENTRY(pf_tree_node) entry; 665 struct pf_state *state; 666 struct pf_addr addr[2]; 667 u_int16_t port[2]; 668 sa_family_t af; 669 u_int8_t proto; 670}; 671 672TAILQ_HEAD(pf_rulequeue, pf_rule); 673 674struct pf_anchor; 675 676struct pf_ruleset { 677 TAILQ_ENTRY(pf_ruleset) entries; 678#define PF_RULESET_NAME_SIZE 16 679 char name[PF_RULESET_NAME_SIZE]; 680 struct { 681 struct pf_rulequeue queues[2]; 682 struct { 683 struct pf_rulequeue *ptr; 684 u_int32_t ticket; 685 } active, inactive; 686 } rules[PF_RULESET_MAX]; 687 struct pf_anchor *anchor; 688 u_int32_t tticket; 689 int tables; 690 int topen; 691}; 692 693TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 694 695struct pf_anchor { 696 TAILQ_ENTRY(pf_anchor) entries; 697 char name[PF_ANCHOR_NAME_SIZE]; 698 struct pf_rulesetqueue rulesets; 699 int tables; 700}; 701 702TAILQ_HEAD(pf_anchorqueue, pf_anchor); 703 704#define PFR_TFLAG_PERSIST 0x00000001 705#define PFR_TFLAG_CONST 0x00000002 706#define PFR_TFLAG_ACTIVE 0x00000004 707#define PFR_TFLAG_INACTIVE 0x00000008 708#define PFR_TFLAG_REFERENCED 0x00000010 709#define PFR_TFLAG_REFDANCHOR 0x00000020 710#define PFR_TFLAG_USRMASK 0x00000003 711#define PFR_TFLAG_SETMASK 0x0000003C 712#define PFR_TFLAG_ALLMASK 0x0000003F 713 714struct pfr_table { 715 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 716 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 717 char pfrt_name[PF_TABLE_NAME_SIZE]; 718 u_int32_t pfrt_flags; 719 u_int8_t pfrt_fback; 720}; 721 722enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 723 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 724 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 725 726struct pfr_addr { 727 union { 728 struct in_addr _pfra_ip4addr; 729 struct in6_addr _pfra_ip6addr; 730 } pfra_u; 731 u_int8_t pfra_af; 732 u_int8_t pfra_net; 733 u_int8_t pfra_not; 734 u_int8_t pfra_fback; 735}; 736#define pfra_ip4addr pfra_u._pfra_ip4addr 737#define pfra_ip6addr pfra_u._pfra_ip6addr 738 739enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 740enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 741#define PFR_OP_XPASS PFR_OP_ADDR_MAX 742 743struct pfr_astats { 744 struct pfr_addr pfras_a; 745 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 746 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 747 long pfras_tzero; 748}; 749 750enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 751 752struct pfr_tstats { 753 struct pfr_table pfrts_t; 754 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 755 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 756 u_int64_t pfrts_match; 757 u_int64_t pfrts_nomatch; 758 long pfrts_tzero; 759 int pfrts_cnt; 760 int pfrts_refcnt[PFR_REFCNT_MAX]; 761}; 762#define pfrts_name pfrts_t.pfrt_name 763#define pfrts_flags pfrts_t.pfrt_flags 764 765SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 766struct pfr_kentry { 767 struct radix_node pfrke_node[2]; 768 union sockaddr_union pfrke_sa; 769 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 770 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 771 SLIST_ENTRY(pfr_kentry) pfrke_workq; 772 long pfrke_tzero; 773 u_int8_t pfrke_af; 774 u_int8_t pfrke_net; 775 u_int8_t pfrke_not; 776 u_int8_t pfrke_mark; 777}; 778 779SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 780RB_HEAD(pfr_ktablehead, pfr_ktable); 781struct pfr_ktable { 782 struct pfr_tstats pfrkt_ts; 783 RB_ENTRY(pfr_ktable) pfrkt_tree; 784 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 785 struct radix_node_head *pfrkt_ip4; 786 struct radix_node_head *pfrkt_ip6; 787 struct pfr_ktable *pfrkt_shadow; 788 struct pfr_ktable *pfrkt_root; 789 struct pf_ruleset *pfrkt_rs; 790 int pfrkt_nflags; 791}; 792#define pfrkt_t pfrkt_ts.pfrts_t 793#define pfrkt_name pfrkt_t.pfrt_name 794#define pfrkt_anchor pfrkt_t.pfrt_anchor 795#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 796#define pfrkt_flags pfrkt_t.pfrt_flags 797#define pfrkt_cnt pfrkt_ts.pfrts_cnt 798#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 799#define pfrkt_packets pfrkt_ts.pfrts_packets 800#define pfrkt_bytes pfrkt_ts.pfrts_bytes 801#define pfrkt_match pfrkt_ts.pfrts_match 802#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 803#define pfrkt_tzero pfrkt_ts.pfrts_tzero 804 805struct pf_pdesc { 806 u_int64_t tot_len; /* Make Mickey money */ 807 union { 808 struct tcphdr *tcp; 809 struct udphdr *udp; 810 struct icmp *icmp; 811#ifdef INET6 812 struct icmp6_hdr *icmp6; 813#endif /* INET6 */ 814 void *any; 815 } hdr; 816 struct pf_addr *src; 817 struct pf_addr *dst; 818 u_int16_t *ip_sum; 819 u_int32_t p_len; /* total length of payload */ 820 u_int16_t flags; /* Let SCRUB trigger behavior in 821 * state code. Easier than tags */ 822#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 823 sa_family_t af; 824 u_int8_t proto; 825 u_int8_t tos; 826}; 827 828/* flags for RDR options */ 829#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 830#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 831 832/* Reasons code for passing/dropping a packet */ 833#define PFRES_MATCH 0 /* Explicit match of a rule */ 834#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 835#define PFRES_FRAG 2 /* Dropping following fragment */ 836#define PFRES_SHORT 3 /* Dropping short packet */ 837#define PFRES_NORM 4 /* Dropping by normalizer */ 838#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 839#define PFRES_MAX 6 /* total+1 */ 840 841#define PFRES_NAMES { \ 842 "match", \ 843 "bad-offset", \ 844 "fragment", \ 845 "short", \ 846 "normalize", \ 847 "memory", \ 848 NULL \ 849} 850 851/* UDP state enumeration */ 852#define PFUDPS_NO_TRAFFIC 0 853#define PFUDPS_SINGLE 1 854#define PFUDPS_MULTIPLE 2 855 856#define PFUDPS_NSTATES 3 /* number of state levels */ 857 858#define PFUDPS_NAMES { \ 859 "NO_TRAFFIC", \ 860 "SINGLE", \ 861 "MULTIPLE", \ 862 NULL \ 863} 864 865/* Other protocol state enumeration */ 866#define PFOTHERS_NO_TRAFFIC 0 867#define PFOTHERS_SINGLE 1 868#define PFOTHERS_MULTIPLE 2 869 870#define PFOTHERS_NSTATES 3 /* number of state levels */ 871 872#define PFOTHERS_NAMES { \ 873 "NO_TRAFFIC", \ 874 "SINGLE", \ 875 "MULTIPLE", \ 876 NULL \ 877} 878 879#define FCNT_STATE_SEARCH 0 880#define FCNT_STATE_INSERT 1 881#define FCNT_STATE_REMOVALS 2 882#define FCNT_MAX 3 883 884 885#define ACTION_SET(a, x) \ 886 do { \ 887 if ((a) != NULL) \ 888 *(a) = (x); \ 889 } while (0) 890 891#define REASON_SET(a, x) \ 892 do { \ 893 if ((a) != NULL) \ 894 *(a) = (x); \ 895 if (x < PFRES_MAX) \ 896 pf_status.counters[x]++; \ 897 } while (0) 898 899struct pf_status { 900 u_int64_t counters[PFRES_MAX]; 901 u_int64_t fcounters[FCNT_MAX]; 902 u_int64_t pcounters[2][2][3]; 903 u_int64_t bcounters[2][2]; 904 u_int32_t running; 905 u_int32_t states; 906 u_int32_t since; 907 u_int32_t debug; 908 char ifname[IFNAMSIZ]; 909}; 910 911struct cbq_opts { 912 u_int minburst; 913 u_int maxburst; 914 u_int pktsize; 915 u_int maxpktsize; 916 u_int ns_per_byte; 917 u_int maxidle; 918 int minidle; 919 u_int offtime; 920 int flags; 921}; 922 923struct priq_opts { 924 int flags; 925}; 926 927struct hfsc_opts { 928 /* real-time service curve */ 929 u_int rtsc_m1; /* slope of the 1st segment in bps */ 930 u_int rtsc_d; /* the x-projection of m1 in msec */ 931 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 932 /* link-sharing service curve */ 933 u_int lssc_m1; 934 u_int lssc_d; 935 u_int lssc_m2; 936 /* upper-limit service curve */ 937 u_int ulsc_m1; 938 u_int ulsc_d; 939 u_int ulsc_m2; 940 int flags; 941}; 942 943struct pf_altq { 944 char ifname[IFNAMSIZ]; 945 946 void *altq_disc; /* discipline-specific state */ 947 TAILQ_ENTRY(pf_altq) entries; 948 949 /* scheduler spec */ 950 u_int8_t scheduler; /* scheduler type */ 951 u_int16_t tbrsize; /* tokenbucket regulator size */ 952 u_int32_t ifbandwidth; /* interface bandwidth */ 953 954 /* queue spec */ 955 char qname[PF_QNAME_SIZE]; /* queue name */ 956 char parent[PF_QNAME_SIZE]; /* parent name */ 957 u_int32_t parent_qid; /* parent queue id */ 958 u_int32_t bandwidth; /* queue bandwidth */ 959 u_int8_t priority; /* priority */ 960 u_int16_t qlimit; /* queue size limit */ 961 u_int16_t flags; /* misc flags */ 962 union { 963 struct cbq_opts cbq_opts; 964 struct priq_opts priq_opts; 965 struct hfsc_opts hfsc_opts; 966 } pq_u; 967 968 u_int32_t qid; /* return value */ 969}; 970 971struct pf_tag { 972 u_int16_t tag; /* tag id */ 973}; 974 975struct pf_tagname { 976 TAILQ_ENTRY(pf_tagname) entries; 977 char name[PF_TAG_NAME_SIZE]; 978 u_int16_t tag; 979 int ref; 980}; 981 982#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 983#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 984#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 985#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 986 987/* 988 * ioctl parameter structures 989 */ 990 991struct pfioc_pooladdr { 992 u_int32_t action; 993 u_int32_t ticket; 994 u_int32_t nr; 995 u_int32_t r_num; 996 u_int8_t r_action; 997 u_int8_t r_last; 998 u_int8_t af; 999 char anchor[PF_ANCHOR_NAME_SIZE]; 1000 char ruleset[PF_RULESET_NAME_SIZE]; 1001 struct pf_pooladdr addr; 1002}; 1003 1004struct pfioc_rule { 1005 u_int32_t action; 1006 u_int32_t ticket; 1007 u_int32_t pool_ticket; 1008 u_int32_t nr; 1009 char anchor[PF_ANCHOR_NAME_SIZE]; 1010 char ruleset[PF_RULESET_NAME_SIZE]; 1011 struct pf_rule rule; 1012}; 1013 1014struct pfioc_natlook { 1015 struct pf_addr saddr; 1016 struct pf_addr daddr; 1017 struct pf_addr rsaddr; 1018 struct pf_addr rdaddr; 1019 u_int16_t sport; 1020 u_int16_t dport; 1021 u_int16_t rsport; 1022 u_int16_t rdport; 1023 sa_family_t af; 1024 u_int8_t proto; 1025 u_int8_t direction; 1026}; 1027 1028struct pfioc_state { 1029 u_int32_t nr; 1030 struct pf_state state; 1031}; 1032 1033struct pfioc_state_kill { 1034 /* XXX returns the number of states killed in psk_af */ 1035 sa_family_t psk_af; 1036 int psk_proto; 1037 struct pf_rule_addr psk_src; 1038 struct pf_rule_addr psk_dst; 1039}; 1040 1041struct pfioc_states { 1042 int ps_len; 1043 union { 1044 caddr_t psu_buf; 1045 struct pf_state *psu_states; 1046 } ps_u; 1047#define ps_buf ps_u.psu_buf 1048#define ps_states ps_u.psu_states 1049}; 1050 1051struct pfioc_if { 1052 char ifname[IFNAMSIZ]; 1053}; 1054 1055struct pfioc_tm { 1056 int timeout; 1057 int seconds; 1058}; 1059 1060struct pfioc_limit { 1061 int index; 1062 unsigned limit; 1063}; 1064 1065struct pfioc_altq { 1066 u_int32_t action; 1067 u_int32_t ticket; 1068 u_int32_t nr; 1069 struct pf_altq altq; 1070}; 1071 1072struct pfioc_qstats { 1073 u_int32_t ticket; 1074 u_int32_t nr; 1075 void *buf; 1076 int nbytes; 1077 u_int8_t scheduler; 1078}; 1079 1080struct pfioc_anchor { 1081 u_int32_t nr; 1082 char name[PF_ANCHOR_NAME_SIZE]; 1083}; 1084 1085struct pfioc_ruleset { 1086 u_int32_t nr; 1087 char anchor[PF_ANCHOR_NAME_SIZE]; 1088 char name[PF_RULESET_NAME_SIZE]; 1089}; 1090 1091#define PFR_FLAG_ATOMIC 0x00000001 1092#define PFR_FLAG_DUMMY 0x00000002 1093#define PFR_FLAG_FEEDBACK 0x00000004 1094#define PFR_FLAG_CLSTATS 0x00000008 1095#define PFR_FLAG_ADDRSTOO 0x00000010 1096#define PFR_FLAG_REPLACE 0x00000020 1097#define PFR_FLAG_ALLRSETS 0x00000040 1098#define PFR_FLAG_ALLMASK 0x0000007F 1099 1100struct pfioc_table { 1101 struct pfr_table pfrio_table; 1102 void *pfrio_buffer; 1103 int pfrio_esize; 1104 int pfrio_size; 1105 int pfrio_size2; 1106 int pfrio_nadd; 1107 int pfrio_ndel; 1108 int pfrio_nchange; 1109 int pfrio_flags; 1110 u_int32_t pfrio_ticket; 1111}; 1112#define pfrio_exists pfrio_nadd 1113#define pfrio_nzero pfrio_nadd 1114#define pfrio_nmatch pfrio_nadd 1115#define pfrio_naddr pfrio_size2 1116#define pfrio_setflag pfrio_size2 1117#define pfrio_clrflag pfrio_nadd 1118 1119 1120/* 1121 * ioctl operations 1122 */ 1123 1124#define DIOCSTART _IO ('D', 1) 1125#define DIOCSTOP _IO ('D', 2) 1126#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1127#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1128#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1129#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1130#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1131/* XXX cut 8 - 17 */ 1132#define DIOCCLRSTATES _IO ('D', 18) 1133#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1134#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1135#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1136#define DIOCCLRSTATUS _IO ('D', 22) 1137#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1138#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1139#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1140#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1141/* XXX cut 26 - 28 */ 1142#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1143#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1144#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1145#define DIOCCLRRULECTRS _IO ('D', 38) 1146#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1147#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1148#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1149#define DIOCSTARTALTQ _IO ('D', 42) 1150#define DIOCSTOPALTQ _IO ('D', 43) 1151#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1152#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1153#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1154#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1155#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1156#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1157#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1158#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1159#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1160#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1161#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1162#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1163#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1164#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1165#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1166#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1167#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1168#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1169#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1170#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1171#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1172#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1173#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1174#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1175#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1176#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1177#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1178#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1179#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1180#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1181#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1182#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1183#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1184#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1185#define DIOCOSFPFLUSH _IO('D', 78) 1186#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1187#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1188#if defined(__FreeBSD__) 1189struct pf_ifspeed { 1190 char ifname[IFNAMSIZ]; 1191 u_int32_t baudrate; 1192}; 1193#define DIOCGIFSPEED _IOWR('D', 81, struct pf_ifspeed) 1194#endif 1195 1196#ifdef _KERNEL 1197RB_HEAD(pf_state_tree, pf_tree_node); 1198RB_PROTOTYPE(pf_state_tree, pf_tree_node, entry, pf_state_compare); 1199extern struct pf_state_tree tree_lan_ext, tree_ext_gwy; 1200 1201extern struct pf_anchorqueue pf_anchors; 1202extern struct pf_ruleset pf_main_ruleset; 1203TAILQ_HEAD(pf_poolqueue, pf_pool); 1204extern struct pf_poolqueue pf_pools[2]; 1205TAILQ_HEAD(pf_altqqueue, pf_altq); 1206extern struct pf_altqqueue pf_altqs[2]; 1207extern struct pf_palist pf_pabuf; 1208 1209 1210extern u_int32_t ticket_altqs_active; 1211extern u_int32_t ticket_altqs_inactive; 1212extern u_int32_t ticket_pabuf; 1213extern struct pf_altqqueue *pf_altqs_active; 1214extern struct pf_altqqueue *pf_altqs_inactive; 1215extern struct pf_poolqueue *pf_pools_active; 1216extern struct pf_poolqueue *pf_pools_inactive; 1217extern int pf_tbladdr_setup(struct pf_ruleset *, 1218 struct pf_addr_wrap *); 1219extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1220extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1221extern int pf_dynaddr_setup(struct pf_addr_wrap *, 1222 sa_family_t); 1223extern void pf_dynaddr_copyout(struct pf_addr_wrap *); 1224extern void pf_dynaddr_remove(struct pf_addr_wrap *); 1225extern void pf_calc_skip_steps(struct pf_rulequeue *); 1226extern void pf_rule_set_qid(struct pf_rulequeue *); 1227extern u_int32_t pf_qname_to_qid(char *); 1228extern void pf_update_anchor_rules(void); 1229#if defined(__FreeBSD__) 1230extern uma_zone_t pf_tree_pl, pf_rule_pl, pf_addr_pl; 1231extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1232extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl; 1233extern uma_zone_t pf_cache_pl, pf_cent_pl; 1234extern uma_zone_t pf_state_scrub_pl; 1235#else 1236extern struct pool pf_tree_pl, pf_rule_pl, pf_addr_pl; 1237extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1238extern struct pool pf_state_scrub_pl; 1239#endif 1240extern void pf_purge_timeout(void *); 1241extern void pf_purge_expired_states(void); 1242extern int pf_insert_state(struct pf_state *); 1243extern struct pf_state *pf_find_state(struct pf_state_tree *, 1244 struct pf_tree_node *); 1245extern struct pf_anchor *pf_find_anchor(const char *); 1246extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1247extern struct pf_ruleset *pf_find_or_create_ruleset(char *, char *); 1248extern void pf_remove_if_empty_ruleset( 1249 struct pf_ruleset *); 1250 1251extern struct ifnet *status_ifp; 1252extern struct pf_rule pf_default_rule; 1253extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1254 u_int8_t); 1255void pf_rm_rule(struct pf_rulequeue *, 1256 struct pf_rule *); 1257 1258#ifdef INET 1259int pf_test(int, struct ifnet *, struct mbuf **); 1260#endif /* INET */ 1261 1262#ifdef INET6 1263int pf_test6(int, struct ifnet *, struct mbuf **); 1264void pf_poolmask(struct pf_addr *, struct pf_addr*, 1265 struct pf_addr *, struct pf_addr *, u_int8_t); 1266void pf_addr_inc(struct pf_addr *, sa_family_t); 1267#endif /* INET6 */ 1268 1269void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1270 sa_family_t); 1271void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1272int pflog_packet(struct ifnet *, struct mbuf *, sa_family_t, u_int8_t, 1273 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1274int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1275 struct pf_addr *, sa_family_t); 1276int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1277int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1278int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1279int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1280 1281void pf_normalize_init(void); 1282int pf_normalize_ip(struct mbuf **, int, struct ifnet *, u_short *); 1283int pf_normalize_ip6(struct mbuf **, int, struct ifnet *, u_short *); 1284int pf_normalize_tcp(int, struct ifnet *, struct mbuf *, int, int, void *, 1285 struct pf_pdesc *); 1286void pf_normalize_tcp_cleanup(struct pf_state *); 1287int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1288 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1289int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1290 u_short *, struct tcphdr *, struct pf_state_peer *, 1291 struct pf_state_peer *, int *); 1292u_int32_t 1293 pf_state_expires(const struct pf_state *); 1294void pf_purge_expired_fragments(void); 1295int pf_routable(struct pf_addr *addr, sa_family_t af); 1296void pfr_initialize(void); 1297int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1298void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1299 u_int64_t, int, int, int); 1300int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1301 struct pf_addr **, struct pf_addr **, sa_family_t); 1302struct pfr_ktable * 1303 pfr_attach_table(struct pf_ruleset *, char *); 1304void pfr_detach_table(struct pfr_ktable *); 1305int pfr_clr_tables(struct pfr_table *, int *, int); 1306int pfr_add_tables(struct pfr_table *, int, int *, int); 1307int pfr_del_tables(struct pfr_table *, int, int *, int); 1308int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1309int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1310int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1311int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1312int pfr_clr_addrs(struct pfr_table *, int *, int); 1313int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1314 int); 1315int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1316 int); 1317int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1318 int *, int *, int *, int); 1319int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1320int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1321int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1322 int); 1323int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1324 int); 1325int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1326int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1327int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1328 int *, u_int32_t, int); 1329 1330u_int16_t pf_tagname2tag(char *); 1331void pf_tag2tagname(u_int16_t, char *); 1332void pf_tag_unref(u_int16_t); 1333int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1334 1335extern struct pf_status pf_status; 1336 1337#if defined(__FreeBSD__) 1338extern uma_zone_t pf_frent_pl, pf_frag_pl; 1339#else 1340extern struct pool pf_frent_pl, pf_frag_pl; 1341#endif 1342 1343struct pf_pool_limit { 1344 void *pp; 1345 unsigned limit; 1346}; 1347extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1348 1349#if defined(__FreeBSD__) 1350struct pf_frent { 1351 LIST_ENTRY(pf_frent) fr_next; 1352 struct ip *fr_ip; 1353 struct mbuf *fr_m; 1354}; 1355 1356struct pf_frcache { 1357 LIST_ENTRY(pf_frcache) fr_next; 1358 uint16_t fr_off; 1359 uint16_t fr_end; 1360}; 1361 1362struct pf_fragment { 1363 RB_ENTRY(pf_fragment) fr_entry; 1364 TAILQ_ENTRY(pf_fragment) frag_next; 1365 struct in_addr fr_src; 1366 struct in_addr fr_dst; 1367 u_int8_t fr_p; /* protocol of this fragment */ 1368 u_int8_t fr_flags; /* status flags */ 1369 u_int16_t fr_id; /* fragment id for reassemble */ 1370 u_int16_t fr_max; /* fragment data max */ 1371 u_int32_t fr_timeout; 1372#define fr_queue fr_u.fru_queue 1373#define fr_cache fr_u.fru_cache 1374 union { 1375 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1376 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1377 } fr_u; 1378}; 1379#endif /* (__FreeBSD__) */ 1380 1381#endif /* _KERNEL */ 1382 1383/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1384int pf_osfp_add(struct pf_osfp_ioctl *); 1385#ifdef _KERNEL 1386struct pf_osfp_enlist * 1387 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1388 const struct tcphdr *); 1389#endif /* _KERNEL */ 1390struct pf_osfp_enlist * 1391 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1392void pf_osfp_flush(void); 1393int pf_osfp_get(struct pf_osfp_ioctl *); 1394#if defined(__FreeBSD__) 1395int pf_osfp_initialize(void); 1396void pf_osfp_cleanup(void); 1397#else 1398void pf_osfp_initialize(void); 1399#endif 1400int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1401struct pf_os_fingerprint * 1402 pf_osfp_validate(void); 1403 1404 1405#endif /* _NET_PFVAR_H_ */ 1406