pfvar.h revision 127145
1/* $FreeBSD: head/sys/contrib/pf/net/pfvar.h 127145 2004-03-17 21:11:02Z 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#ifdef __FreeBSD__ 43#include <vm/uma.h> 44#else 45#include <netinet/ip_ipsp.h> 46#endif 47 48#ifdef __FreeBSD__ 49#include <netinet/in.h> 50/* 51 * XXX 52 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 53 * This makes pfctl compilation difficult. 54 */ 55union sockaddr_union { 56 struct sockaddr sa; 57 struct sockaddr_in sin; 58 struct sockaddr_in6 sin6; 59}; 60#endif 61 62#include <netinet/tcp_fsm.h> 63 64struct ip; 65 66#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 67#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 68 69enum { PF_INOUT, PF_IN, PF_OUT }; 70enum { PF_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}; 136 137#ifdef _KERNEL 138 139struct pf_addr_dyn { 140 char ifname[IFNAMSIZ]; 141 struct ifnet *ifp; 142 struct pf_addr *addr; 143 sa_family_t af; 144#ifdef __FreeBSD__ 145 eventhandler_tag hook_cookie; 146#else 147 void *hook_cookie; 148#endif 149 u_int8_t undefined; 150}; 151 152/* 153 * Address manipulation macros 154 */ 155 156#ifdef __FreeBSD__ 157#define splsoftnet() splnet() 158 159#define HTONL(x) (x) = htonl((__uint32_t)(x)) 160#define HTONS(x) (x) = htons((__uint16_t)(x)) 161#define NTOHL(x) (x) = ntohl((__uint32_t)(x)) 162#define NTOHS(x) (x) = ntohs((__uint16_t)(x)) 163 164#define PF_NAME "pf" 165 166#define PR_NOWAIT M_NOWAIT 167#define pool_get(p, f) uma_zalloc(*(p), (f)) 168#define pool_put(p, o) uma_zfree(*(p), (o)) 169 170#define UMA_CREATE(var, type, desc) \ 171 var = uma_zcreate(desc, sizeof(type), \ 172 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \ 173 if (var == NULL) break 174#define UMA_DESTROY(var) \ 175 if(var) uma_zdestroy(var) 176 177extern struct mtx pf_task_mtx; 178#ifdef ALTQ 179extern struct mtx pf_altq_mtx; 180extern int pfaltq_ref; 181#endif 182 183#define PF_ASSERT(h) mtx_assert(&pf_task_mtx, (h)) 184 185#define PF_LOCK() do { \ 186 PF_ASSERT(MA_NOTOWNED); \ 187 mtx_lock(&pf_task_mtx); \ 188} while(0) 189#define PF_UNLOCK() do { \ 190 PF_ASSERT(MA_OWNED); \ 191 mtx_unlock(&pf_task_mtx); \ 192} while(0) 193 194#define PF_COPYIN(uaddr, kaddr, len, r) do { \ 195 PF_UNLOCK(); \ 196 r = copyin((uaddr), (kaddr), (len)); \ 197 PF_LOCK(); \ 198} while(0) 199 200#define PF_COPYOUT(kaddr, uaddr, len, r) do { \ 201 PF_UNLOCK(); \ 202 r = copyout((kaddr), (uaddr), (len)); \ 203 PF_LOCK(); \ 204} while(0) 205 206extern void init_pf_mutex(void); 207extern void destroy_pf_mutex(void); 208 209#define PF_MODVER 1 210#define PFLOG_MODVER 1 211#define PFSYNC_MODVER 1 212 213#define PFLOG_MINVER 1 214#define PFLOG_PREFVER PFLOG_MODVER 215#define PFLOG_MAXVER 1 216#define PFSYNC_MINVER 1 217#define PFSYNC_PREFVER PFSYNC_MODVER 218#define PFSYNC_MAXVER 1 219#endif 220 221#ifdef INET 222#ifndef INET6 223#define PF_INET_ONLY 224#endif /* ! INET6 */ 225#endif /* INET */ 226 227#ifdef INET6 228#ifndef INET 229#define PF_INET6_ONLY 230#endif /* ! INET */ 231#endif /* INET6 */ 232 233#ifdef INET 234#ifdef INET6 235#define PF_INET_INET6 236#endif /* INET6 */ 237#endif /* INET */ 238 239#else 240 241#define PF_INET_INET6 242 243#endif /* _KERNEL */ 244 245/* Both IPv4 and IPv6 */ 246#ifdef PF_INET_INET6 247 248#define PF_AEQ(a, b, c) \ 249 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 250 ((a)->addr32[3] == (b)->addr32[3] && \ 251 (a)->addr32[2] == (b)->addr32[2] && \ 252 (a)->addr32[1] == (b)->addr32[1] && \ 253 (a)->addr32[0] == (b)->addr32[0])) \ 254 255#define PF_ANEQ(a, b, c) \ 256 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 257 ((a)->addr32[3] != (b)->addr32[3] || \ 258 (a)->addr32[2] != (b)->addr32[2] || \ 259 (a)->addr32[1] != (b)->addr32[1] || \ 260 (a)->addr32[0] != (b)->addr32[0])) \ 261 262#define PF_AZERO(a, c) \ 263 ((c == AF_INET && !(a)->addr32[0]) || \ 264 (!(a)->addr32[0] && !(a)->addr32[1] && \ 265 !(a)->addr32[2] && !(a)->addr32[3] )) \ 266 267#define PF_MATCHA(n, a, m, b, f) \ 268 pf_match_addr(n, a, m, b, f) 269 270#define PF_ACPY(a, b, f) \ 271 pf_addrcpy(a, b, f) 272 273#define PF_AINC(a, f) \ 274 pf_addr_inc(a, f) 275 276#define PF_POOLMASK(a, b, c, d, f) \ 277 pf_poolmask(a, b, c, d, f) 278 279#else 280 281/* Just IPv6 */ 282 283#ifdef PF_INET6_ONLY 284 285#define PF_AEQ(a, b, c) \ 286 ((a)->addr32[3] == (b)->addr32[3] && \ 287 (a)->addr32[2] == (b)->addr32[2] && \ 288 (a)->addr32[1] == (b)->addr32[1] && \ 289 (a)->addr32[0] == (b)->addr32[0]) \ 290 291#define PF_ANEQ(a, b, c) \ 292 ((a)->addr32[3] != (b)->addr32[3] || \ 293 (a)->addr32[2] != (b)->addr32[2] || \ 294 (a)->addr32[1] != (b)->addr32[1] || \ 295 (a)->addr32[0] != (b)->addr32[0]) \ 296 297#define PF_AZERO(a, c) \ 298 (!(a)->addr32[0] && \ 299 !(a)->addr32[1] && \ 300 !(a)->addr32[2] && \ 301 !(a)->addr32[3] ) \ 302 303#define PF_MATCHA(n, a, m, b, f) \ 304 pf_match_addr(n, a, m, b, f) 305 306#define PF_ACPY(a, b, f) \ 307 pf_addrcpy(a, b, f) 308 309#define PF_AINC(a, f) \ 310 pf_addr_inc(a, f) 311 312#define PF_POOLMASK(a, b, c, d, f) \ 313 pf_poolmask(a, b, c, d, f) 314 315#else 316 317/* Just IPv4 */ 318#ifdef PF_INET_ONLY 319 320#define PF_AEQ(a, b, c) \ 321 ((a)->addr32[0] == (b)->addr32[0]) 322 323#define PF_ANEQ(a, b, c) \ 324 ((a)->addr32[0] != (b)->addr32[0]) 325 326#define PF_AZERO(a, c) \ 327 (!(a)->addr32[0]) 328 329#define PF_MATCHA(n, a, m, b, f) \ 330 pf_match_addr(n, a, m, b, f) 331 332#define PF_ACPY(a, b, f) \ 333 (a)->v4.s_addr = (b)->v4.s_addr 334 335#define PF_AINC(a, f) \ 336 do { \ 337 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 338 } while (0) 339 340#define PF_POOLMASK(a, b, c, d, f) \ 341 do { \ 342 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 343 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 344 } while (0) 345 346#endif /* PF_INET_ONLY */ 347#endif /* PF_INET6_ONLY */ 348#endif /* PF_INET_INET6 */ 349 350#define PF_MISMATCHAW(aw, x, af, not) \ 351 ( \ 352 (((aw)->type == PF_ADDR_NOROUTE && \ 353 pf_routable((x), (af))) || \ 354 ((aw)->type == PF_ADDR_TABLE && \ 355 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 356 ((aw)->type == PF_ADDR_DYNIFTL && \ 357 ((aw)->p.dyn->undefined || \ 358 (!PF_AZERO(&(aw)->v.a.mask, (af)) && \ 359 !PF_MATCHA(0, &(aw)->v.a.addr, \ 360 &(aw)->v.a.mask, (x), (af))))) || \ 361 ((aw)->type == PF_ADDR_ADDRMASK && \ 362 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 363 !PF_MATCHA(0, &(aw)->v.a.addr, \ 364 &(aw)->v.a.mask, (x), (af)))) != \ 365 (not) \ 366 ) 367 368struct pf_rule_uid { 369 uid_t uid[2]; 370 u_int8_t op; 371}; 372 373struct pf_rule_gid { 374 uid_t gid[2]; 375 u_int8_t op; 376}; 377 378struct pf_rule_addr { 379 struct pf_addr_wrap addr; 380 u_int16_t port[2]; 381 u_int8_t not; 382 u_int8_t port_op; 383}; 384 385struct pf_pooladdr { 386 struct pf_addr_wrap addr; 387 TAILQ_ENTRY(pf_pooladdr) entries; 388 char ifname[IFNAMSIZ]; 389 struct ifnet *ifp; 390}; 391 392TAILQ_HEAD(pf_palist, pf_pooladdr); 393 394struct pf_poolhashkey { 395 union { 396 u_int8_t key8[16]; 397 u_int16_t key16[8]; 398 u_int32_t key32[4]; 399 } pfk; /* 128-bit hash key */ 400#define key8 pfk.key8 401#define key16 pfk.key16 402#define key32 pfk.key32 403}; 404 405struct pf_pool { 406 struct pf_palist list; 407 struct pf_pooladdr *cur; 408 struct pf_poolhashkey key; 409 struct pf_addr counter; 410 int tblidx; 411 u_int16_t proxy_port[2]; 412 u_int8_t port_op; 413 u_int8_t opts; 414}; 415 416 417/* A packed Operating System description for fingerprinting */ 418typedef u_int32_t pf_osfp_t; 419#define PF_OSFP_ANY ((pf_osfp_t)0) 420#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 421#define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 422 423struct pf_osfp_entry { 424 SLIST_ENTRY(pf_osfp_entry) fp_entry; 425 pf_osfp_t fp_os; 426 int fp_enflags; 427#define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 428#define PF_OSFP_GENERIC 0x002 /* generic signature */ 429#define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 430#define PF_OSFP_LEN 32 431 char fp_class_nm[PF_OSFP_LEN]; 432 char fp_version_nm[PF_OSFP_LEN]; 433 char fp_subtype_nm[PF_OSFP_LEN]; 434}; 435#define PF_OSFP_ENTRY_EQ(a, b) \ 436 ((a)->fp_os == (b)->fp_os && \ 437 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 438 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 439 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 440 441/* handle pf_osfp_t packing */ 442#define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 443#define _FP_UNUSED_BITS 1 444#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 445#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 446#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 447#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 448 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 449 ((1 << _FP_CLASS_BITS) - 1); \ 450 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 451 ((1 << _FP_VERSION_BITS) - 1);\ 452 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 453} while(0) 454#define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 455 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 456 + _FP_SUBTYPE_BITS); \ 457 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 458 _FP_SUBTYPE_BITS; \ 459 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 460} while(0) 461 462/* the fingerprint of an OSes TCP SYN packet */ 463typedef u_int64_t pf_tcpopts_t; 464struct pf_os_fingerprint { 465 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 466 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 467 u_int16_t fp_wsize; /* TCP window size */ 468 u_int16_t fp_psize; /* ip->ip_len */ 469 u_int16_t fp_mss; /* TCP MSS */ 470 u_int16_t fp_flags; 471#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 472#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 473#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 474#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 475#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 476#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 477#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 478#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 479#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 480#define PF_OSFP_MSS 0x0200 /* TCP MSS */ 481#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 482#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 483#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 484#define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 485 u_int8_t fp_optcnt; /* TCP option count */ 486 u_int8_t fp_wscale; /* TCP window scaling */ 487 u_int8_t fp_ttl; /* IPv4 TTL */ 488#define PF_OSFP_MAXTTL_OFFSET 40 489/* TCP options packing */ 490#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 491#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 492#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 493#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 494#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 495#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 496#define PF_OSFP_MAX_OPTS \ 497 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 498 / PF_OSFP_TCPOPT_BITS 499 500 SLIST_ENTRY(pf_os_fingerprint) fp_next; 501}; 502 503struct pf_osfp_ioctl { 504 struct pf_osfp_entry fp_os; 505 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 506 u_int16_t fp_wsize; /* TCP window size */ 507 u_int16_t fp_psize; /* ip->ip_len */ 508 u_int16_t fp_mss; /* TCP MSS */ 509 u_int16_t fp_flags; 510 u_int8_t fp_optcnt; /* TCP option count */ 511 u_int8_t fp_wscale; /* TCP window scaling */ 512 u_int8_t fp_ttl; /* IPv4 TTL */ 513 514 int fp_getnum; /* DIOCOSFPGET number */ 515}; 516 517 518union pf_rule_ptr { 519 struct pf_rule *ptr; 520 u_int32_t nr; 521}; 522 523struct pf_rule { 524 struct pf_rule_addr src; 525 struct pf_rule_addr dst; 526#define PF_SKIP_IFP 0 527#define PF_SKIP_DIR 1 528#define PF_SKIP_AF 2 529#define PF_SKIP_PROTO 3 530#define PF_SKIP_SRC_ADDR 4 531#define PF_SKIP_SRC_PORT 5 532#define PF_SKIP_DST_ADDR 6 533#define PF_SKIP_DST_PORT 7 534#define PF_SKIP_COUNT 8 535 union pf_rule_ptr skip[PF_SKIP_COUNT]; 536#define PF_RULE_LABEL_SIZE 64 537 char label[PF_RULE_LABEL_SIZE]; 538 u_int32_t timeout[PFTM_MAX]; 539#define PF_QNAME_SIZE 16 540 char ifname[IFNAMSIZ]; 541 char qname[PF_QNAME_SIZE]; 542 char pqname[PF_QNAME_SIZE]; 543#define PF_ANCHOR_NAME_SIZE 16 544 char anchorname[PF_ANCHOR_NAME_SIZE]; 545#define PF_TAG_NAME_SIZE 16 546 char tagname[PF_TAG_NAME_SIZE]; 547 char match_tagname[PF_TAG_NAME_SIZE]; 548 549 TAILQ_ENTRY(pf_rule) entries; 550 struct pf_pool rpool; 551 552 u_int64_t evaluations; 553 u_int64_t packets; 554 u_int64_t bytes; 555 556 struct ifnet *ifp; 557 struct pf_anchor *anchor; 558 559 pf_osfp_t os_fingerprint; 560 u_int32_t states; 561 u_int32_t max_states; 562 u_int32_t qid; 563 u_int32_t pqid; 564 u_int32_t rt_listid; 565 u_int32_t nr; 566 567 u_int16_t return_icmp; 568 u_int16_t return_icmp6; 569 u_int16_t max_mss; 570 u_int16_t tag; 571 u_int16_t match_tag; 572 573 struct pf_rule_uid uid; 574 struct pf_rule_gid gid; 575 576 u_int32_t rule_flag; 577 u_int8_t action; 578 u_int8_t direction; 579 u_int8_t log; 580 u_int8_t quick; 581 u_int8_t ifnot; 582 u_int8_t match_tag_not; 583 u_int8_t natpass; 584 585#define PF_STATE_NORMAL 0x1 586#define PF_STATE_MODULATE 0x2 587#define PF_STATE_SYNPROXY 0x3 588 u_int8_t keep_state; 589 sa_family_t af; 590 u_int8_t proto; 591 u_int8_t type; 592 u_int8_t code; 593 u_int8_t flags; 594 u_int8_t flagset; 595 u_int8_t min_ttl; 596 u_int8_t allow_opts; 597 u_int8_t rt; 598 u_int8_t return_ttl; 599 u_int8_t tos; 600}; 601 602/* rule flags */ 603#define PFRULE_DROP 0x0000 604#define PFRULE_RETURNRST 0x0001 605#define PFRULE_FRAGMENT 0x0002 606#define PFRULE_RETURNICMP 0x0004 607#define PFRULE_RETURN 0x0008 608 609/* scrub flags */ 610#define PFRULE_NODF 0x0100 611#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 612#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 613#define PFRULE_RANDOMID 0x0800 614#define PFRULE_REASSEMBLE_TCP 0x1000 615 616#define PFSTATE_HIWAT 10000 /* default state table size */ 617 618 619struct pf_state_scrub { 620 u_int16_t pfss_flags; 621#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 622 u_int8_t pfss_ttl; /* stashed TTL */ 623 u_int8_t pad; 624 u_int32_t pfss_ts_mod; /* timestamp modulation */ 625}; 626 627struct pf_state_host { 628 struct pf_addr addr; 629 u_int16_t port; 630 u_int16_t pad; 631}; 632 633struct pf_state_peer { 634 u_int32_t seqlo; /* Max sequence number sent */ 635 u_int32_t seqhi; /* Max the other end ACKd + win */ 636 u_int32_t seqdiff; /* Sequence number modulator */ 637 u_int16_t max_win; /* largest window (pre scaling) */ 638 u_int8_t state; /* active state level */ 639 u_int8_t wscale; /* window scaling factor */ 640 u_int16_t mss; /* Maximum segment size option */ 641 struct pf_state_scrub *scrub; /* state is scrubbed */ 642}; 643 644struct pf_state { 645 struct pf_state_host lan; 646 struct pf_state_host gwy; 647 struct pf_state_host ext; 648 struct pf_state_peer src; 649 struct pf_state_peer dst; 650 union pf_rule_ptr rule; 651 union pf_rule_ptr anchor; 652 union pf_rule_ptr nat_rule; 653 struct pf_addr rt_addr; 654 struct ifnet *rt_ifp; 655 u_int32_t creation; 656 u_int32_t expire; 657 u_int32_t packets[2]; 658 u_int32_t bytes[2]; 659 sa_family_t af; 660 u_int8_t proto; 661 u_int8_t direction; 662 u_int8_t log; 663 u_int8_t allow_opts; 664 u_int8_t timeout; 665 u_int8_t pad[2]; 666}; 667 668struct pf_tree_node { 669 RB_ENTRY(pf_tree_node) entry; 670 struct pf_state *state; 671 struct pf_addr addr[2]; 672 u_int16_t port[2]; 673 sa_family_t af; 674 u_int8_t proto; 675}; 676 677TAILQ_HEAD(pf_rulequeue, pf_rule); 678 679struct pf_anchor; 680 681struct pf_ruleset { 682 TAILQ_ENTRY(pf_ruleset) entries; 683#define PF_RULESET_NAME_SIZE 16 684 char name[PF_RULESET_NAME_SIZE]; 685 struct { 686 struct pf_rulequeue queues[2]; 687 struct { 688 struct pf_rulequeue *ptr; 689 u_int32_t ticket; 690 } active, inactive; 691 } rules[PF_RULESET_MAX]; 692 struct pf_anchor *anchor; 693 u_int32_t tticket; 694 int tables; 695 int topen; 696}; 697 698TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 699 700struct pf_anchor { 701 TAILQ_ENTRY(pf_anchor) entries; 702 char name[PF_ANCHOR_NAME_SIZE]; 703 struct pf_rulesetqueue rulesets; 704 int tables; 705}; 706 707TAILQ_HEAD(pf_anchorqueue, pf_anchor); 708 709#define PFR_TFLAG_PERSIST 0x00000001 710#define PFR_TFLAG_CONST 0x00000002 711#define PFR_TFLAG_ACTIVE 0x00000004 712#define PFR_TFLAG_INACTIVE 0x00000008 713#define PFR_TFLAG_REFERENCED 0x00000010 714#define PFR_TFLAG_REFDANCHOR 0x00000020 715#define PFR_TFLAG_USRMASK 0x00000003 716#define PFR_TFLAG_SETMASK 0x0000003C 717#define PFR_TFLAG_ALLMASK 0x0000003F 718 719struct pfr_table { 720 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 721 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 722 char pfrt_name[PF_TABLE_NAME_SIZE]; 723 u_int32_t pfrt_flags; 724 u_int8_t pfrt_fback; 725}; 726 727enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 728 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 729 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 730 731struct pfr_addr { 732 union { 733 struct in_addr _pfra_ip4addr; 734 struct in6_addr _pfra_ip6addr; 735 } pfra_u; 736 u_int8_t pfra_af; 737 u_int8_t pfra_net; 738 u_int8_t pfra_not; 739 u_int8_t pfra_fback; 740}; 741#define pfra_ip4addr pfra_u._pfra_ip4addr 742#define pfra_ip6addr pfra_u._pfra_ip6addr 743 744enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 745enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 746#define PFR_OP_XPASS PFR_OP_ADDR_MAX 747 748struct pfr_astats { 749 struct pfr_addr pfras_a; 750 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 751 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 752 long pfras_tzero; 753}; 754 755enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 756 757struct pfr_tstats { 758 struct pfr_table pfrts_t; 759 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 760 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 761 u_int64_t pfrts_match; 762 u_int64_t pfrts_nomatch; 763 long pfrts_tzero; 764 int pfrts_cnt; 765 int pfrts_refcnt[PFR_REFCNT_MAX]; 766}; 767#define pfrts_name pfrts_t.pfrt_name 768#define pfrts_flags pfrts_t.pfrt_flags 769 770SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 771struct pfr_kentry { 772 struct radix_node pfrke_node[2]; 773 union sockaddr_union pfrke_sa; 774 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 775 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 776 SLIST_ENTRY(pfr_kentry) pfrke_workq; 777 long pfrke_tzero; 778 u_int8_t pfrke_af; 779 u_int8_t pfrke_net; 780 u_int8_t pfrke_not; 781 u_int8_t pfrke_mark; 782}; 783 784SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 785RB_HEAD(pfr_ktablehead, pfr_ktable); 786struct pfr_ktable { 787 struct pfr_tstats pfrkt_ts; 788 RB_ENTRY(pfr_ktable) pfrkt_tree; 789 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 790 struct radix_node_head *pfrkt_ip4; 791 struct radix_node_head *pfrkt_ip6; 792 struct pfr_ktable *pfrkt_shadow; 793 struct pfr_ktable *pfrkt_root; 794 struct pf_ruleset *pfrkt_rs; 795 int pfrkt_nflags; 796}; 797#define pfrkt_t pfrkt_ts.pfrts_t 798#define pfrkt_name pfrkt_t.pfrt_name 799#define pfrkt_anchor pfrkt_t.pfrt_anchor 800#define pfrkt_ruleset pfrkt_t.pfrt_ruleset 801#define pfrkt_flags pfrkt_t.pfrt_flags 802#define pfrkt_cnt pfrkt_ts.pfrts_cnt 803#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 804#define pfrkt_packets pfrkt_ts.pfrts_packets 805#define pfrkt_bytes pfrkt_ts.pfrts_bytes 806#define pfrkt_match pfrkt_ts.pfrts_match 807#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 808#define pfrkt_tzero pfrkt_ts.pfrts_tzero 809 810struct pf_pdesc { 811 u_int64_t tot_len; /* Make Mickey money */ 812 union { 813 struct tcphdr *tcp; 814 struct udphdr *udp; 815 struct icmp *icmp; 816#ifdef INET6 817 struct icmp6_hdr *icmp6; 818#endif /* INET6 */ 819 void *any; 820 } hdr; 821 struct pf_addr *src; 822 struct pf_addr *dst; 823 u_int16_t *ip_sum; 824 u_int32_t p_len; /* total length of payload */ 825 u_int16_t flags; /* Let SCRUB trigger behavior in 826 * state code. Easier than tags */ 827#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 828 sa_family_t af; 829 u_int8_t proto; 830 u_int8_t tos; 831}; 832 833/* flags for RDR options */ 834#define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 835#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 836 837/* Reasons code for passing/dropping a packet */ 838#define PFRES_MATCH 0 /* Explicit match of a rule */ 839#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 840#define PFRES_FRAG 2 /* Dropping following fragment */ 841#define PFRES_SHORT 3 /* Dropping short packet */ 842#define PFRES_NORM 4 /* Dropping by normalizer */ 843#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 844#define PFRES_MAX 6 /* total+1 */ 845 846#define PFRES_NAMES { \ 847 "match", \ 848 "bad-offset", \ 849 "fragment", \ 850 "short", \ 851 "normalize", \ 852 "memory", \ 853 NULL \ 854} 855 856/* UDP state enumeration */ 857#define PFUDPS_NO_TRAFFIC 0 858#define PFUDPS_SINGLE 1 859#define PFUDPS_MULTIPLE 2 860 861#define PFUDPS_NSTATES 3 /* number of state levels */ 862 863#define PFUDPS_NAMES { \ 864 "NO_TRAFFIC", \ 865 "SINGLE", \ 866 "MULTIPLE", \ 867 NULL \ 868} 869 870/* Other protocol state enumeration */ 871#define PFOTHERS_NO_TRAFFIC 0 872#define PFOTHERS_SINGLE 1 873#define PFOTHERS_MULTIPLE 2 874 875#define PFOTHERS_NSTATES 3 /* number of state levels */ 876 877#define PFOTHERS_NAMES { \ 878 "NO_TRAFFIC", \ 879 "SINGLE", \ 880 "MULTIPLE", \ 881 NULL \ 882} 883 884#define FCNT_STATE_SEARCH 0 885#define FCNT_STATE_INSERT 1 886#define FCNT_STATE_REMOVALS 2 887#define FCNT_MAX 3 888 889 890#define ACTION_SET(a, x) \ 891 do { \ 892 if ((a) != NULL) \ 893 *(a) = (x); \ 894 } while (0) 895 896#define REASON_SET(a, x) \ 897 do { \ 898 if ((a) != NULL) \ 899 *(a) = (x); \ 900 if (x < PFRES_MAX) \ 901 pf_status.counters[x]++; \ 902 } while (0) 903 904struct pf_status { 905 u_int64_t counters[PFRES_MAX]; 906 u_int64_t fcounters[FCNT_MAX]; 907 u_int64_t pcounters[2][2][3]; 908 u_int64_t bcounters[2][2]; 909 u_int32_t running; 910 u_int32_t states; 911 u_int32_t since; 912 u_int32_t debug; 913 char ifname[IFNAMSIZ]; 914}; 915 916struct cbq_opts { 917 u_int minburst; 918 u_int maxburst; 919 u_int pktsize; 920 u_int maxpktsize; 921 u_int ns_per_byte; 922 u_int maxidle; 923 int minidle; 924 u_int offtime; 925 int flags; 926}; 927 928struct priq_opts { 929 int flags; 930}; 931 932struct hfsc_opts { 933 /* real-time service curve */ 934 u_int rtsc_m1; /* slope of the 1st segment in bps */ 935 u_int rtsc_d; /* the x-projection of m1 in msec */ 936 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 937 /* link-sharing service curve */ 938 u_int lssc_m1; 939 u_int lssc_d; 940 u_int lssc_m2; 941 /* upper-limit service curve */ 942 u_int ulsc_m1; 943 u_int ulsc_d; 944 u_int ulsc_m2; 945 int flags; 946}; 947 948struct pf_altq { 949 char ifname[IFNAMSIZ]; 950 951 void *altq_disc; /* discipline-specific state */ 952 TAILQ_ENTRY(pf_altq) entries; 953 954 /* scheduler spec */ 955 u_int8_t scheduler; /* scheduler type */ 956 u_int16_t tbrsize; /* tokenbucket regulator size */ 957 u_int32_t ifbandwidth; /* interface bandwidth */ 958 959 /* queue spec */ 960 char qname[PF_QNAME_SIZE]; /* queue name */ 961 char parent[PF_QNAME_SIZE]; /* parent name */ 962 u_int32_t parent_qid; /* parent queue id */ 963 u_int32_t bandwidth; /* queue bandwidth */ 964 u_int8_t priority; /* priority */ 965 u_int16_t qlimit; /* queue size limit */ 966 u_int16_t flags; /* misc flags */ 967 union { 968 struct cbq_opts cbq_opts; 969 struct priq_opts priq_opts; 970 struct hfsc_opts hfsc_opts; 971 } pq_u; 972 973 u_int32_t qid; /* return value */ 974}; 975 976struct pf_tag { 977 u_int16_t tag; /* tag id */ 978}; 979 980struct pf_tagname { 981 TAILQ_ENTRY(pf_tagname) entries; 982 char name[PF_TAG_NAME_SIZE]; 983 u_int16_t tag; 984 int ref; 985}; 986 987#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 988#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 989#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 990#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 991 992/* 993 * ioctl parameter structures 994 */ 995 996struct pfioc_pooladdr { 997 u_int32_t action; 998 u_int32_t ticket; 999 u_int32_t nr; 1000 u_int32_t r_num; 1001 u_int8_t r_action; 1002 u_int8_t r_last; 1003 u_int8_t af; 1004 char anchor[PF_ANCHOR_NAME_SIZE]; 1005 char ruleset[PF_RULESET_NAME_SIZE]; 1006 struct pf_pooladdr addr; 1007}; 1008 1009struct pfioc_rule { 1010 u_int32_t action; 1011 u_int32_t ticket; 1012 u_int32_t pool_ticket; 1013 u_int32_t nr; 1014 char anchor[PF_ANCHOR_NAME_SIZE]; 1015 char ruleset[PF_RULESET_NAME_SIZE]; 1016 struct pf_rule rule; 1017}; 1018 1019struct pfioc_natlook { 1020 struct pf_addr saddr; 1021 struct pf_addr daddr; 1022 struct pf_addr rsaddr; 1023 struct pf_addr rdaddr; 1024 u_int16_t sport; 1025 u_int16_t dport; 1026 u_int16_t rsport; 1027 u_int16_t rdport; 1028 sa_family_t af; 1029 u_int8_t proto; 1030 u_int8_t direction; 1031}; 1032 1033struct pfioc_state { 1034 u_int32_t nr; 1035 struct pf_state state; 1036}; 1037 1038struct pfioc_state_kill { 1039 /* XXX returns the number of states killed in psk_af */ 1040 sa_family_t psk_af; 1041 int psk_proto; 1042 struct pf_rule_addr psk_src; 1043 struct pf_rule_addr psk_dst; 1044}; 1045 1046struct pfioc_states { 1047 int ps_len; 1048 union { 1049 caddr_t psu_buf; 1050 struct pf_state *psu_states; 1051 } ps_u; 1052#define ps_buf ps_u.psu_buf 1053#define ps_states ps_u.psu_states 1054}; 1055 1056struct pfioc_if { 1057 char ifname[IFNAMSIZ]; 1058}; 1059 1060struct pfioc_tm { 1061 int timeout; 1062 int seconds; 1063}; 1064 1065struct pfioc_limit { 1066 int index; 1067 unsigned limit; 1068}; 1069 1070struct pfioc_altq { 1071 u_int32_t action; 1072 u_int32_t ticket; 1073 u_int32_t nr; 1074 struct pf_altq altq; 1075}; 1076 1077struct pfioc_qstats { 1078 u_int32_t ticket; 1079 u_int32_t nr; 1080 void *buf; 1081 int nbytes; 1082 u_int8_t scheduler; 1083}; 1084 1085struct pfioc_anchor { 1086 u_int32_t nr; 1087 char name[PF_ANCHOR_NAME_SIZE]; 1088}; 1089 1090struct pfioc_ruleset { 1091 u_int32_t nr; 1092 char anchor[PF_ANCHOR_NAME_SIZE]; 1093 char name[PF_RULESET_NAME_SIZE]; 1094}; 1095 1096#define PFR_FLAG_ATOMIC 0x00000001 1097#define PFR_FLAG_DUMMY 0x00000002 1098#define PFR_FLAG_FEEDBACK 0x00000004 1099#define PFR_FLAG_CLSTATS 0x00000008 1100#define PFR_FLAG_ADDRSTOO 0x00000010 1101#define PFR_FLAG_REPLACE 0x00000020 1102#define PFR_FLAG_ALLRSETS 0x00000040 1103#define PFR_FLAG_ALLMASK 0x0000007F 1104 1105struct pfioc_table { 1106 struct pfr_table pfrio_table; 1107 void *pfrio_buffer; 1108 int pfrio_esize; 1109 int pfrio_size; 1110 int pfrio_size2; 1111 int pfrio_nadd; 1112 int pfrio_ndel; 1113 int pfrio_nchange; 1114 int pfrio_flags; 1115 u_int32_t pfrio_ticket; 1116}; 1117#define pfrio_exists pfrio_nadd 1118#define pfrio_nzero pfrio_nadd 1119#define pfrio_nmatch pfrio_nadd 1120#define pfrio_naddr pfrio_size2 1121#define pfrio_setflag pfrio_size2 1122#define pfrio_clrflag pfrio_nadd 1123 1124 1125/* 1126 * ioctl operations 1127 */ 1128 1129#define DIOCSTART _IO ('D', 1) 1130#define DIOCSTOP _IO ('D', 2) 1131#define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1132#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1133#define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1134#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1135#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1136/* XXX cut 8 - 17 */ 1137#define DIOCCLRSTATES _IO ('D', 18) 1138#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1139#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1140#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1141#define DIOCCLRSTATUS _IO ('D', 22) 1142#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1143#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1144#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1145#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1146/* XXX cut 26 - 28 */ 1147#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1148#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1149#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1150#define DIOCCLRRULECTRS _IO ('D', 38) 1151#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1152#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1153#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1154#define DIOCSTARTALTQ _IO ('D', 42) 1155#define DIOCSTOPALTQ _IO ('D', 43) 1156#define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1157#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1158#define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1159#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1160#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1161#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1162#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1163#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1164#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1165#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1166#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1167#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1168#define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1169#define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1170#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1171#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1172#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1173#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1174#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1175#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1176#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1177#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1178#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1179#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1180#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1181#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1182#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1183#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1184#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1185#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1186#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1187#define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1188#define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1189#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1190#define DIOCOSFPFLUSH _IO('D', 78) 1191#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1192#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1193#ifdef __FreeBSD__ 1194struct pf_ifspeed { 1195 char ifname[IFNAMSIZ]; 1196 u_int32_t baudrate; 1197}; 1198#define DIOCGIFSPEED _IOWR('D', 81, struct pf_ifspeed) 1199#endif 1200 1201#ifdef _KERNEL 1202RB_HEAD(pf_state_tree, pf_tree_node); 1203RB_PROTOTYPE(pf_state_tree, pf_tree_node, entry, pf_state_compare); 1204extern struct pf_state_tree tree_lan_ext, tree_ext_gwy; 1205 1206extern struct pf_anchorqueue pf_anchors; 1207extern struct pf_ruleset pf_main_ruleset; 1208TAILQ_HEAD(pf_poolqueue, pf_pool); 1209extern struct pf_poolqueue pf_pools[2]; 1210TAILQ_HEAD(pf_altqqueue, pf_altq); 1211extern struct pf_altqqueue pf_altqs[2]; 1212extern struct pf_palist pf_pabuf; 1213 1214 1215extern u_int32_t ticket_altqs_active; 1216extern u_int32_t ticket_altqs_inactive; 1217extern u_int32_t ticket_pabuf; 1218extern struct pf_altqqueue *pf_altqs_active; 1219extern struct pf_altqqueue *pf_altqs_inactive; 1220extern struct pf_poolqueue *pf_pools_active; 1221extern struct pf_poolqueue *pf_pools_inactive; 1222extern int pf_tbladdr_setup(struct pf_ruleset *, 1223 struct pf_addr_wrap *); 1224extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1225extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1226extern int pf_dynaddr_setup(struct pf_addr_wrap *, 1227 sa_family_t); 1228extern void pf_dynaddr_copyout(struct pf_addr_wrap *); 1229extern void pf_dynaddr_remove(struct pf_addr_wrap *); 1230extern void pf_calc_skip_steps(struct pf_rulequeue *); 1231extern void pf_rule_set_qid(struct pf_rulequeue *); 1232extern u_int32_t pf_qname_to_qid(char *); 1233extern void pf_update_anchor_rules(void); 1234#ifdef __FreeBSD__ 1235extern uma_zone_t pf_tree_pl, pf_rule_pl, pf_addr_pl; 1236extern uma_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1237extern uma_zone_t pfr_ktable_pl, pfr_kentry_pl; 1238extern uma_zone_t pf_cache_pl, pf_cent_pl; 1239extern uma_zone_t pf_state_scrub_pl; 1240#else 1241extern struct pool pf_tree_pl, pf_rule_pl, pf_addr_pl; 1242extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1243extern struct pool pf_state_scrub_pl; 1244#endif 1245extern void pf_purge_timeout(void *); 1246extern void pf_purge_expired_states(void); 1247extern int pf_insert_state(struct pf_state *); 1248extern struct pf_state *pf_find_state(struct pf_state_tree *, 1249 struct pf_tree_node *); 1250extern struct pf_anchor *pf_find_anchor(const char *); 1251extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1252extern struct pf_ruleset *pf_find_or_create_ruleset(char *, char *); 1253extern void pf_remove_if_empty_ruleset( 1254 struct pf_ruleset *); 1255 1256extern struct ifnet *status_ifp; 1257extern struct pf_rule pf_default_rule; 1258extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1259 u_int8_t); 1260void pf_rm_rule(struct pf_rulequeue *, 1261 struct pf_rule *); 1262 1263#ifdef INET 1264int pf_test(int, struct ifnet *, struct mbuf **); 1265#endif /* INET */ 1266 1267#ifdef INET6 1268int pf_test6(int, struct ifnet *, struct mbuf **); 1269void pf_poolmask(struct pf_addr *, struct pf_addr*, 1270 struct pf_addr *, struct pf_addr *, u_int8_t); 1271void pf_addr_inc(struct pf_addr *, sa_family_t); 1272#endif /* INET6 */ 1273 1274void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1275 sa_family_t); 1276void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1277int pflog_packet(struct ifnet *, struct mbuf *, sa_family_t, u_int8_t, 1278 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1279int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1280 struct pf_addr *, sa_family_t); 1281int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1282int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1283int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1284int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1285 1286void pf_normalize_init(void); 1287int pf_normalize_ip(struct mbuf **, int, struct ifnet *, u_short *); 1288int pf_normalize_ip6(struct mbuf **, int, struct ifnet *, u_short *); 1289int pf_normalize_tcp(int, struct ifnet *, struct mbuf *, int, int, void *, 1290 struct pf_pdesc *); 1291void pf_normalize_tcp_cleanup(struct pf_state *); 1292int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1293 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1294int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1295 u_short *, struct tcphdr *, struct pf_state_peer *, 1296 struct pf_state_peer *, int *); 1297u_int32_t 1298 pf_state_expires(const struct pf_state *); 1299void pf_purge_expired_fragments(void); 1300int pf_routable(struct pf_addr *addr, sa_family_t af); 1301void pfr_initialize(void); 1302int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1303void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1304 u_int64_t, int, int, int); 1305int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1306 struct pf_addr **, struct pf_addr **, sa_family_t); 1307struct pfr_ktable * 1308 pfr_attach_table(struct pf_ruleset *, char *); 1309void pfr_detach_table(struct pfr_ktable *); 1310int pfr_clr_tables(struct pfr_table *, int *, int); 1311int pfr_add_tables(struct pfr_table *, int, int *, int); 1312int pfr_del_tables(struct pfr_table *, int, int *, int); 1313int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1314int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1315int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1316int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1317int pfr_clr_addrs(struct pfr_table *, int *, int); 1318int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1319 int); 1320int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1321 int); 1322int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1323 int *, int *, int *, int); 1324int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1325int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1326int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1327 int); 1328int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1329 int); 1330int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1331int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1332int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1333 int *, u_int32_t, int); 1334 1335u_int16_t pf_tagname2tag(char *); 1336void pf_tag2tagname(u_int16_t, char *); 1337void pf_tag_unref(u_int16_t); 1338int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1339 1340extern struct pf_status pf_status; 1341 1342#ifdef __FreeBSD__ 1343extern uma_zone_t pf_frent_pl, pf_frag_pl; 1344#else 1345extern struct pool pf_frent_pl, pf_frag_pl; 1346#endif 1347 1348struct pf_pool_limit { 1349 void *pp; 1350 unsigned limit; 1351}; 1352extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1353 1354#ifdef __FreeBSD__ 1355struct pf_frent { 1356 LIST_ENTRY(pf_frent) fr_next; 1357 struct ip *fr_ip; 1358 struct mbuf *fr_m; 1359}; 1360 1361struct pf_frcache { 1362 LIST_ENTRY(pf_frcache) fr_next; 1363 uint16_t fr_off; 1364 uint16_t fr_end; 1365}; 1366 1367struct pf_fragment { 1368 RB_ENTRY(pf_fragment) fr_entry; 1369 TAILQ_ENTRY(pf_fragment) frag_next; 1370 struct in_addr fr_src; 1371 struct in_addr fr_dst; 1372 u_int8_t fr_p; /* protocol of this fragment */ 1373 u_int8_t fr_flags; /* status flags */ 1374 u_int16_t fr_id; /* fragment id for reassemble */ 1375 u_int16_t fr_max; /* fragment data max */ 1376 u_int32_t fr_timeout; 1377#define fr_queue fr_u.fru_queue 1378#define fr_cache fr_u.fru_cache 1379 union { 1380 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1381 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1382 } fr_u; 1383}; 1384#endif /* (__FreeBSD__) */ 1385 1386#endif /* _KERNEL */ 1387 1388/* The fingerprint functions can be linked into userland programs (tcpdump) */ 1389int pf_osfp_add(struct pf_osfp_ioctl *); 1390#ifdef _KERNEL 1391struct pf_osfp_enlist * 1392 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1393 const struct tcphdr *); 1394#endif /* _KERNEL */ 1395struct pf_osfp_enlist * 1396 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1397void pf_osfp_flush(void); 1398int pf_osfp_get(struct pf_osfp_ioctl *); 1399#ifdef __FreeBSD__ 1400int pf_osfp_initialize(void); 1401void pf_osfp_cleanup(void); 1402#else 1403void pf_osfp_initialize(void); 1404#endif 1405int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1406struct pf_os_fingerprint * 1407 pf_osfp_validate(void); 1408 1409 1410#endif /* _NET_PFVAR_H_ */ 1411