1 /* $FreeBSD: src/sys/contrib/pf/net/pfvar.h,v 1.8 2004/08/12 13:59:44 mlaier Exp $ */ 2 /* $OpenBSD: pfvar.h,v 1.187 2004/03/22 04:54:18 mcbride Exp $ */ 3 /* add $OpenBSD: pfvar.h,v 1.194 2004/05/11 07:34:11 dhartmei Exp $ */ 4 /* $DragonFly: src/sys/net/pf/pfvar.h,v 1.8 2008/04/11 18:21:48 dillon Exp $ */ 5 6 /* 7 * Copyright (c) 2004 The DragonFly Project. All rights reserved. 8 * 9 * Copyright (c) 2001 Daniel Hartmeier 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 16 * - Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials provided 21 * with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 */ 37 38 #ifndef _NET_PFVAR_H_ 39 #define _NET_PFVAR_H_ 40 41 #include <sys/types.h> 42 #include <sys/queue.h> 43 #include <sys/tree.h> 44 45 #include <net/radix.h> 46 #include <net/if_clone.h> 47 #include <netinet/in.h> 48 49 #ifdef _KERNEL 50 #include <vm/vm_zone.h> 51 #endif 52 53 /* 54 * XXX 55 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 56 * This makes pfctl compilation difficult. 57 */ 58 union sockaddr_union { 59 struct sockaddr sa; 60 struct sockaddr_in sin; 61 struct sockaddr_in6 sin6; 62 }; 63 64 #include <netinet/tcp_fsm.h> 65 66 struct ip; 67 68 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 69 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 70 71 enum { PF_INOUT, PF_IN, PF_OUT }; 72 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 73 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 74 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 75 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 76 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 77 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 78 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 79 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 80 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 81 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 82 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 83 /* 84 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 85 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 86 */ 87 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 88 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 89 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 90 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 91 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 92 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 93 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 94 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 95 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 96 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 97 #define PF_POOL_IDMASK 0x0f 98 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 99 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 100 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 101 PF_ADDR_TABLE }; 102 #define PF_POOL_TYPEMASK 0x0f 103 #define PF_POOL_STICKYADDR 0x20 104 #define PF_WSCALE_FLAG 0x80 105 #define PF_WSCALE_MASK 0x0f 106 107 struct pf_addr { 108 union { 109 struct in_addr v4; 110 struct in6_addr v6; 111 u_int8_t addr8[16]; 112 u_int16_t addr16[8]; 113 u_int32_t addr32[4]; 114 } pfa; /* 128-bit address */ 115 #define v4 pfa.v4 116 #define v6 pfa.v6 117 #define addr8 pfa.addr8 118 #define addr16 pfa.addr16 119 #define addr32 pfa.addr32 120 }; 121 122 #define PF_TABLE_NAME_SIZE 32 123 124 #define PFI_AFLAG_NETWORK 0x01 125 #define PFI_AFLAG_BROADCAST 0x02 126 #define PFI_AFLAG_PEER 0x04 127 #define PFI_AFLAG_MODEMASK 0x07 128 #define PFI_AFLAG_NOALIAS 0x08 129 130 struct pf_addr_wrap { 131 union { 132 struct { 133 struct pf_addr addr; 134 struct pf_addr mask; 135 } a; 136 char ifname[IFNAMSIZ]; 137 char tblname[PF_TABLE_NAME_SIZE]; 138 } v; 139 union { 140 struct pfi_dynaddr *dyn; 141 struct pfr_ktable *tbl; 142 int dyncnt; 143 int tblcnt; 144 } p; 145 u_int8_t type; /* PF_ADDR_* */ 146 u_int8_t iflags; /* PFI_AFLAG_* */ 147 }; 148 149 #ifdef _KERNEL 150 151 struct pfi_dynaddr { 152 struct pf_addr pfid_addr4; 153 struct pf_addr pfid_mask4; 154 struct pf_addr pfid_addr6; 155 struct pf_addr pfid_mask6; 156 struct pfr_ktable *pfid_kt; 157 struct pfi_kif *pfid_kif; 158 void *pfid_hook_cookie; 159 int pfid_net; /* optional mask, or 128 */ 160 int pfid_acnt4; /* address count, IPv4 */ 161 int pfid_acnt6; /* address count, IPv6 */ 162 sa_family_t pfid_af; /* rule address family */ 163 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 164 }; 165 166 /* 167 * Address manipulation macros 168 */ 169 170 /* XXX correct values for zinit? */ 171 #define ZONE_CREATE(var, type, desc) \ 172 var = zinit(desc, sizeof(type), 1, ZONE_DESTROYABLE, 1); \ 173 if (var == NULL) break 174 #define ZONE_DESTROY(a) zdestroy(a) 175 176 #define pool_get(p, f) zalloc(*(p)) 177 #define pool_put(p, o) zfree(*(p), (o)) 178 179 #define PF_NAME "pf" 180 181 #define PF_MODVER 1 182 #define PFLOG_MODVER 1 183 #define PFSYNC_MODVER 1 184 185 #define PFLOG_MINVER 1 186 #define PFLOG_PREFVER PFLOG_MODVER 187 #define PFLOG_MAXVER 1 188 #define PFSYNC_MINVER 1 189 #define PFSYNC_PREFVER PFSYNC_MODVER 190 #define PFSYNC_MAXVER 1 191 192 /* prototyped for pf_subr.c */ 193 struct hook_desc { 194 TAILQ_ENTRY(hook_desc) hd_list; 195 void (*hd_fn)(void *); 196 void *hd_arg; 197 }; 198 TAILQ_HEAD(hook_desc_head, hook_desc); 199 200 void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *); 201 void hook_disestablish(struct hook_desc_head *, void *); 202 void dohooks(struct hook_desc_head *, int); 203 204 #define HOOK_REMOVE 0x01 205 #define HOOK_FREE 0x02 206 207 #ifdef INET 208 #ifndef INET6 209 #define PF_INET_ONLY 210 #endif /* ! INET6 */ 211 #endif /* INET */ 212 213 #ifdef INET6 214 #ifndef INET 215 #define PF_INET6_ONLY 216 #endif /* ! INET */ 217 #endif /* INET6 */ 218 219 #ifdef INET 220 #ifdef INET6 221 #define PF_INET_INET6 222 #endif /* INET6 */ 223 #endif /* INET */ 224 225 #else 226 227 #define PF_INET_INET6 228 229 #endif /* _KERNEL */ 230 231 /* Both IPv4 and IPv6 */ 232 #ifdef PF_INET_INET6 233 234 #define PF_AEQ(a, b, c) \ 235 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 236 ((a)->addr32[3] == (b)->addr32[3] && \ 237 (a)->addr32[2] == (b)->addr32[2] && \ 238 (a)->addr32[1] == (b)->addr32[1] && \ 239 (a)->addr32[0] == (b)->addr32[0])) \ 240 241 #define PF_ANEQ(a, b, c) \ 242 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 243 ((a)->addr32[3] != (b)->addr32[3] || \ 244 (a)->addr32[2] != (b)->addr32[2] || \ 245 (a)->addr32[1] != (b)->addr32[1] || \ 246 (a)->addr32[0] != (b)->addr32[0])) \ 247 248 #define PF_AZERO(a, c) \ 249 ((c == AF_INET && !(a)->addr32[0]) || \ 250 (!(a)->addr32[0] && !(a)->addr32[1] && \ 251 !(a)->addr32[2] && !(a)->addr32[3] )) \ 252 253 #define PF_MATCHA(n, a, m, b, f) \ 254 pf_match_addr(n, a, m, b, f) 255 256 #define PF_ACPY(a, b, f) \ 257 pf_addrcpy(a, b, f) 258 259 #define PF_AINC(a, f) \ 260 pf_addr_inc(a, f) 261 262 #define PF_POOLMASK(a, b, c, d, f) \ 263 pf_poolmask(a, b, c, d, f) 264 265 #else 266 267 /* Just IPv6 */ 268 269 #ifdef PF_INET6_ONLY 270 271 #define PF_AEQ(a, b, c) \ 272 ((a)->addr32[3] == (b)->addr32[3] && \ 273 (a)->addr32[2] == (b)->addr32[2] && \ 274 (a)->addr32[1] == (b)->addr32[1] && \ 275 (a)->addr32[0] == (b)->addr32[0]) \ 276 277 #define PF_ANEQ(a, b, c) \ 278 ((a)->addr32[3] != (b)->addr32[3] || \ 279 (a)->addr32[2] != (b)->addr32[2] || \ 280 (a)->addr32[1] != (b)->addr32[1] || \ 281 (a)->addr32[0] != (b)->addr32[0]) \ 282 283 #define PF_AZERO(a, c) \ 284 (!(a)->addr32[0] && \ 285 !(a)->addr32[1] && \ 286 !(a)->addr32[2] && \ 287 !(a)->addr32[3] ) \ 288 289 #define PF_MATCHA(n, a, m, b, f) \ 290 pf_match_addr(n, a, m, b, f) 291 292 #define PF_ACPY(a, b, f) \ 293 pf_addrcpy(a, b, f) 294 295 #define PF_AINC(a, f) \ 296 pf_addr_inc(a, f) 297 298 #define PF_POOLMASK(a, b, c, d, f) \ 299 pf_poolmask(a, b, c, d, f) 300 301 #else 302 303 /* Just IPv4 */ 304 #ifdef PF_INET_ONLY 305 306 #define PF_AEQ(a, b, c) \ 307 ((a)->addr32[0] == (b)->addr32[0]) 308 309 #define PF_ANEQ(a, b, c) \ 310 ((a)->addr32[0] != (b)->addr32[0]) 311 312 #define PF_AZERO(a, c) \ 313 (!(a)->addr32[0]) 314 315 #define PF_MATCHA(n, a, m, b, f) \ 316 pf_match_addr(n, a, m, b, f) 317 318 #define PF_ACPY(a, b, f) \ 319 (a)->v4.s_addr = (b)->v4.s_addr 320 321 #define PF_AINC(a, f) \ 322 do { \ 323 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 324 } while (0) 325 326 #define PF_POOLMASK(a, b, c, d, f) \ 327 do { \ 328 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 329 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 330 } while (0) 331 332 #endif /* PF_INET_ONLY */ 333 #endif /* PF_INET6_ONLY */ 334 #endif /* PF_INET_INET6 */ 335 336 #define PF_MISMATCHAW(aw, x, af, not) \ 337 ( \ 338 (((aw)->type == PF_ADDR_NOROUTE && \ 339 pf_routable((x), (af))) || \ 340 ((aw)->type == PF_ADDR_TABLE && \ 341 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 342 ((aw)->type == PF_ADDR_DYNIFTL && \ 343 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 344 ((aw)->type == PF_ADDR_ADDRMASK && \ 345 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 346 !PF_MATCHA(0, &(aw)->v.a.addr, \ 347 &(aw)->v.a.mask, (x), (af)))) != \ 348 (not) \ 349 ) 350 351 struct pf_rule_uid { 352 uid_t uid[2]; 353 u_int8_t op; 354 }; 355 356 struct pf_rule_gid { 357 uid_t gid[2]; 358 u_int8_t op; 359 }; 360 361 struct pf_rule_addr { 362 struct pf_addr_wrap addr; 363 u_int16_t port[2]; 364 u_int8_t not; 365 u_int8_t port_op; 366 }; 367 368 struct pf_pooladdr { 369 struct pf_addr_wrap addr; 370 TAILQ_ENTRY(pf_pooladdr) entries; 371 char ifname[IFNAMSIZ]; 372 struct pfi_kif *kif; 373 }; 374 375 TAILQ_HEAD(pf_palist, pf_pooladdr); 376 377 struct pf_poolhashkey { 378 union { 379 u_int8_t key8[16]; 380 u_int16_t key16[8]; 381 u_int32_t key32[4]; 382 } pfk; /* 128-bit hash key */ 383 #define key8 pfk.key8 384 #define key16 pfk.key16 385 #define key32 pfk.key32 386 }; 387 388 struct pf_pool { 389 struct pf_palist list; 390 struct pf_pooladdr *cur; 391 struct pf_poolhashkey key; 392 struct pf_addr counter; 393 int tblidx; 394 u_int16_t proxy_port[2]; 395 u_int8_t port_op; 396 u_int8_t opts; 397 }; 398 399 400 /* A packed Operating System description for fingerprinting */ 401 typedef u_int32_t pf_osfp_t; 402 #define PF_OSFP_ANY ((pf_osfp_t)0) 403 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 404 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 405 406 struct pf_osfp_entry { 407 SLIST_ENTRY(pf_osfp_entry) fp_entry; 408 pf_osfp_t fp_os; 409 int fp_enflags; 410 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 411 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 412 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 413 #define PF_OSFP_LEN 32 414 char fp_class_nm[PF_OSFP_LEN]; 415 char fp_version_nm[PF_OSFP_LEN]; 416 char fp_subtype_nm[PF_OSFP_LEN]; 417 }; 418 #define PF_OSFP_ENTRY_EQ(a, b) \ 419 ((a)->fp_os == (b)->fp_os && \ 420 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 421 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 422 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 423 424 /* handle pf_osfp_t packing */ 425 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 426 #define _FP_UNUSED_BITS 1 427 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 428 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 429 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 430 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 431 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 432 ((1 << _FP_CLASS_BITS) - 1); \ 433 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 434 ((1 << _FP_VERSION_BITS) - 1);\ 435 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 436 } while(0) 437 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 438 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 439 + _FP_SUBTYPE_BITS); \ 440 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 441 _FP_SUBTYPE_BITS; \ 442 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 443 } while(0) 444 445 /* the fingerprint of an OSes TCP SYN packet */ 446 typedef u_int64_t pf_tcpopts_t; 447 struct pf_os_fingerprint { 448 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 449 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 450 u_int16_t fp_wsize; /* TCP window size */ 451 u_int16_t fp_psize; /* ip->ip_len */ 452 u_int16_t fp_mss; /* TCP MSS */ 453 u_int16_t fp_flags; 454 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 455 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 456 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 457 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 458 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 459 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 460 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 461 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 462 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 463 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 464 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 465 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 466 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 467 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 468 u_int8_t fp_optcnt; /* TCP option count */ 469 u_int8_t fp_wscale; /* TCP window scaling */ 470 u_int8_t fp_ttl; /* IPv4 TTL */ 471 #define PF_OSFP_MAXTTL_OFFSET 40 472 /* TCP options packing */ 473 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 474 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 475 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 476 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 477 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 478 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 479 #define PF_OSFP_MAX_OPTS \ 480 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 481 / PF_OSFP_TCPOPT_BITS 482 483 SLIST_ENTRY(pf_os_fingerprint) fp_next; 484 }; 485 486 struct pf_osfp_ioctl { 487 struct pf_osfp_entry fp_os; 488 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 489 u_int16_t fp_wsize; /* TCP window size */ 490 u_int16_t fp_psize; /* ip->ip_len */ 491 u_int16_t fp_mss; /* TCP MSS */ 492 u_int16_t fp_flags; 493 u_int8_t fp_optcnt; /* TCP option count */ 494 u_int8_t fp_wscale; /* TCP window scaling */ 495 u_int8_t fp_ttl; /* IPv4 TTL */ 496 497 int fp_getnum; /* DIOCOSFPGET number */ 498 }; 499 500 501 union pf_rule_ptr { 502 struct pf_rule *ptr; 503 u_int32_t nr; 504 }; 505 506 struct pf_rule { 507 struct pf_rule_addr src; 508 struct pf_rule_addr dst; 509 #define PF_SKIP_IFP 0 510 #define PF_SKIP_DIR 1 511 #define PF_SKIP_AF 2 512 #define PF_SKIP_PROTO 3 513 #define PF_SKIP_SRC_ADDR 4 514 #define PF_SKIP_SRC_PORT 5 515 #define PF_SKIP_DST_ADDR 6 516 #define PF_SKIP_DST_PORT 7 517 #define PF_SKIP_COUNT 8 518 union pf_rule_ptr skip[PF_SKIP_COUNT]; 519 #define PF_RULE_LABEL_SIZE 64 520 char label[PF_RULE_LABEL_SIZE]; 521 #define PF_QNAME_SIZE 16 522 char ifname[IFNAMSIZ]; 523 char qname[PF_QNAME_SIZE]; 524 char pqname[PF_QNAME_SIZE]; 525 #define PF_ANCHOR_NAME_SIZE 16 526 char anchorname[PF_ANCHOR_NAME_SIZE]; 527 #define PF_TAG_NAME_SIZE 16 528 char tagname[PF_TAG_NAME_SIZE]; 529 char match_tagname[PF_TAG_NAME_SIZE]; 530 531 TAILQ_ENTRY(pf_rule) entries; 532 struct pf_pool rpool; 533 534 u_int64_t evaluations; 535 u_int64_t packets; 536 u_int64_t bytes; 537 538 struct pfi_kif *kif; 539 struct pf_anchor *anchor; 540 541 pf_osfp_t os_fingerprint; 542 543 u_int32_t timeout[PFTM_MAX]; 544 u_int32_t states; 545 u_int32_t max_states; 546 u_int32_t src_nodes; 547 u_int32_t max_src_nodes; 548 u_int32_t max_src_states; 549 u_int32_t qid; 550 u_int32_t pqid; 551 u_int32_t rt_listid; 552 u_int32_t nr; 553 u_int32_t prob; 554 555 u_int16_t return_icmp; 556 u_int16_t return_icmp6; 557 u_int16_t max_mss; 558 u_int16_t tag; 559 u_int16_t match_tag; 560 561 struct pf_rule_uid uid; 562 struct pf_rule_gid gid; 563 564 u_int32_t rule_flag; 565 u_int8_t action; 566 u_int8_t direction; 567 u_int8_t log; 568 u_int8_t quick; 569 u_int8_t ifnot; 570 u_int8_t match_tag_not; 571 u_int8_t natpass; 572 573 #define PF_STATE_NORMAL 0x1 574 #define PF_STATE_MODULATE 0x2 575 #define PF_STATE_SYNPROXY 0x3 576 u_int8_t keep_state; 577 sa_family_t af; 578 u_int8_t proto; 579 u_int8_t type; 580 u_int8_t code; 581 u_int8_t flags; 582 u_int8_t flagset; 583 u_int8_t min_ttl; 584 u_int8_t allow_opts; 585 u_int8_t rt; 586 u_int8_t return_ttl; 587 u_int8_t tos; 588 #define PF_PICKUPS_UNSPECIFIED 0 589 #define PF_PICKUPS_DISABLED 1 590 #define PF_PICKUPS_HASHONLY 2 591 #define PF_PICKUPS_ENABLED 3 592 u_int8_t pickup_mode; 593 u_int8_t unused01; /* available for use */ 594 }; 595 596 /* rule flags */ 597 #define PFRULE_DROP 0x0000 598 #define PFRULE_RETURNRST 0x0001 599 #define PFRULE_FRAGMENT 0x0002 600 #define PFRULE_RETURNICMP 0x0004 601 #define PFRULE_RETURN 0x0008 602 #define PFRULE_NOSYNC 0x0010 603 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 604 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 605 606 /* scrub flags */ 607 #define PFRULE_NODF 0x0100 608 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 609 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 610 #define PFRULE_RANDOMID 0x0800 611 #define PFRULE_REASSEMBLE_TCP 0x1000 612 613 /* rule flags again */ 614 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 615 #define PFRULE_GRBOUND 0x00020000 /* group-bound */ 616 617 #define PFSTATE_HIWAT 10000 /* default state table size */ 618 619 struct pf_src_node { 620 RB_ENTRY(pf_src_node) entry; 621 struct pf_addr addr; 622 struct pf_addr raddr; 623 union pf_rule_ptr rule; 624 struct pfi_kif *kif; 625 u_int32_t bytes; 626 u_int32_t packets; 627 u_int32_t states; 628 u_int32_t creation; 629 u_int32_t expire; 630 sa_family_t af; 631 u_int8_t ruletype; 632 }; 633 634 #define PFSNODE_HIWAT 10000 /* default source node table size */ 635 636 struct pf_state_scrub { 637 u_int16_t pfss_flags; 638 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 639 u_int8_t pfss_ttl; /* stashed TTL */ 640 u_int8_t pad; 641 u_int32_t pfss_ts_mod; /* timestamp modulation */ 642 }; 643 644 struct pf_state_host { 645 struct pf_addr addr; 646 u_int16_t port; 647 u_int16_t pad; 648 }; 649 650 struct pf_state_peer { 651 u_int32_t seqlo; /* Max sequence number sent */ 652 u_int32_t seqhi; /* Max the other end ACKd + win */ 653 u_int32_t seqdiff; /* Sequence number modulator */ 654 u_int16_t max_win; /* largest window (pre scaling) */ 655 u_int8_t state; /* active state level */ 656 u_int8_t wscale; /* window scaling factor */ 657 u_int16_t mss; /* Maximum segment size option */ 658 struct pf_state_scrub *scrub; /* state is scrubbed */ 659 }; 660 661 TAILQ_HEAD(pf_state_queue, pf_state); 662 663 struct pf_state { 664 u_int64_t id; 665 union { 666 struct { 667 RB_ENTRY(pf_state) entry_lan_ext; 668 RB_ENTRY(pf_state) entry_ext_gwy; 669 RB_ENTRY(pf_state) entry_id; 670 TAILQ_ENTRY(pf_state) entry_updates; 671 struct pfi_kif *kif; 672 } s; 673 char ifname[IFNAMSIZ]; 674 } u; 675 struct pf_state_host lan; 676 struct pf_state_host gwy; 677 struct pf_state_host ext; 678 struct pf_state_peer src; 679 struct pf_state_peer dst; 680 union pf_rule_ptr rule; 681 union pf_rule_ptr anchor; 682 union pf_rule_ptr nat_rule; 683 struct pf_addr rt_addr; 684 struct pfi_kif *rt_kif; 685 struct pf_src_node *src_node; 686 struct pf_src_node *nat_src_node; 687 u_int32_t hash; 688 u_int32_t creation; 689 u_int32_t expire; 690 u_int32_t pfsync_time; 691 u_int32_t packets[2]; 692 u_int32_t bytes[2]; 693 u_int32_t creatorid; 694 sa_family_t af; 695 u_int8_t proto; 696 u_int8_t direction; 697 u_int8_t log; 698 u_int8_t allow_opts; 699 u_int8_t timeout; 700 u_int8_t sync_flags; 701 #define PFSTATE_NOSYNC 0x01 702 #define PFSTATE_FROMSYNC 0x02 703 #define PFSTATE_GOT_SYN1 0x04 /* got SYN in one direction */ 704 #define PFSTATE_GOT_SYN2 0x08 /* got SYN in the other direction */ 705 u_int8_t pickup_mode; 706 u_int8_t pad; 707 }; 708 709 #define PFSTATE_GOT_SYN_MASK (PFSTATE_GOT_SYN1|PFSTATE_GOT_SYN2) 710 711 TAILQ_HEAD(pf_rulequeue, pf_rule); 712 713 struct pf_anchor; 714 715 struct pf_ruleset { 716 TAILQ_ENTRY(pf_ruleset) entries; 717 #define PF_RULESET_NAME_SIZE 16 718 char name[PF_RULESET_NAME_SIZE]; 719 struct { 720 struct pf_rulequeue queues[2]; 721 struct { 722 struct pf_rulequeue *ptr; 723 u_int32_t ticket; 724 int open; 725 } active, inactive; 726 } rules[PF_RULESET_MAX]; 727 struct pf_anchor *anchor; 728 u_int32_t tticket; 729 int tables; 730 int topen; 731 }; 732 733 TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 734 735 struct pf_anchor { 736 TAILQ_ENTRY(pf_anchor) entries; 737 char name[PF_ANCHOR_NAME_SIZE]; 738 struct pf_rulesetqueue rulesets; 739 int tables; 740 }; 741 742 TAILQ_HEAD(pf_anchorqueue, pf_anchor); 743 744 #define PF_RESERVED_ANCHOR "_pf" 745 #define PF_INTERFACE_RULESET "_if" 746 747 #define PFR_TFLAG_PERSIST 0x00000001 748 #define PFR_TFLAG_CONST 0x00000002 749 #define PFR_TFLAG_ACTIVE 0x00000004 750 #define PFR_TFLAG_INACTIVE 0x00000008 751 #define PFR_TFLAG_REFERENCED 0x00000010 752 #define PFR_TFLAG_REFDANCHOR 0x00000020 753 #define PFR_TFLAG_USRMASK 0x00000003 754 #define PFR_TFLAG_SETMASK 0x0000003C 755 #define PFR_TFLAG_ALLMASK 0x0000003F 756 757 struct pfr_table { 758 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 759 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 760 char pfrt_name[PF_TABLE_NAME_SIZE]; 761 u_int32_t pfrt_flags; 762 u_int8_t pfrt_fback; 763 }; 764 765 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 766 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 767 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 768 769 struct pfr_addr { 770 union { 771 struct in_addr _pfra_ip4addr; 772 struct in6_addr _pfra_ip6addr; 773 } pfra_u; 774 u_int8_t pfra_af; 775 u_int8_t pfra_net; 776 u_int8_t pfra_not; 777 u_int8_t pfra_fback; 778 }; 779 #define pfra_ip4addr pfra_u._pfra_ip4addr 780 #define pfra_ip6addr pfra_u._pfra_ip6addr 781 782 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 783 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 784 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 785 786 struct pfr_astats { 787 struct pfr_addr pfras_a; 788 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 789 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 790 long pfras_tzero; 791 }; 792 793 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 794 795 struct pfr_tstats { 796 struct pfr_table pfrts_t; 797 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 798 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 799 u_int64_t pfrts_match; 800 u_int64_t pfrts_nomatch; 801 long pfrts_tzero; 802 int pfrts_cnt; 803 int pfrts_refcnt[PFR_REFCNT_MAX]; 804 }; 805 #define pfrts_name pfrts_t.pfrt_name 806 #define pfrts_flags pfrts_t.pfrt_flags 807 808 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 809 struct pfr_kentry { 810 struct radix_node pfrke_node[2]; 811 union sockaddr_union pfrke_sa; 812 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 813 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 814 SLIST_ENTRY(pfr_kentry) pfrke_workq; 815 long pfrke_tzero; 816 u_int8_t pfrke_af; 817 u_int8_t pfrke_net; 818 u_int8_t pfrke_not; 819 u_int8_t pfrke_mark; 820 }; 821 822 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 823 RB_HEAD(pfr_ktablehead, pfr_ktable); 824 struct pfr_ktable { 825 struct pfr_tstats pfrkt_ts; 826 RB_ENTRY(pfr_ktable) pfrkt_tree; 827 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 828 struct radix_node_head *pfrkt_ip4; 829 struct radix_node_head *pfrkt_ip6; 830 struct pfr_ktable *pfrkt_shadow; 831 struct pfr_ktable *pfrkt_root; 832 struct pf_ruleset *pfrkt_rs; 833 long pfrkt_larg; 834 int pfrkt_nflags; 835 }; 836 #define pfrkt_t pfrkt_ts.pfrts_t 837 #define pfrkt_name pfrkt_t.pfrt_name 838 #define pfrkt_anchor pfrkt_t.pfrt_anchor 839 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 840 #define pfrkt_flags pfrkt_t.pfrt_flags 841 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 842 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 843 #define pfrkt_packets pfrkt_ts.pfrts_packets 844 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 845 #define pfrkt_match pfrkt_ts.pfrts_match 846 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 847 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 848 849 RB_HEAD(pf_state_tree_lan_ext, pf_state); 850 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 851 u.s.entry_lan_ext, pf_state_compare_lan_ext); 852 853 RB_HEAD(pf_state_tree_ext_gwy, pf_state); 854 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 855 u.s.entry_ext_gwy, pf_state_compare_ext_gwy); 856 857 struct pfi_if { 858 char pfif_name[IFNAMSIZ]; 859 u_int64_t pfif_packets[2][2][2]; 860 u_int64_t pfif_bytes[2][2][2]; 861 u_int64_t pfif_addcnt; 862 u_int64_t pfif_delcnt; 863 long pfif_tzero; 864 int pfif_states; 865 int pfif_rules; 866 int pfif_flags; 867 }; 868 869 TAILQ_HEAD(pfi_grouphead, pfi_kif); 870 TAILQ_HEAD(pfi_statehead, pfi_kif); 871 RB_HEAD(pfi_ifhead, pfi_kif); 872 struct pfi_kif { 873 struct pfi_if pfik_if; 874 RB_ENTRY(pfi_kif) pfik_tree; 875 struct pf_state_tree_lan_ext pfik_lan_ext; 876 struct pf_state_tree_ext_gwy pfik_ext_gwy; 877 struct pfi_grouphead pfik_grouphead; 878 TAILQ_ENTRY(pfi_kif) pfik_instances; 879 TAILQ_ENTRY(pfi_kif) pfik_w_states; 880 struct hook_desc_head *pfik_ah_head; 881 void *pfik_ah_cookie; 882 struct pfi_kif *pfik_parent; 883 struct ifnet *pfik_ifp; 884 int pfik_states; 885 int pfik_rules; 886 }; 887 #define pfik_name pfik_if.pfif_name 888 #define pfik_packets pfik_if.pfif_packets 889 #define pfik_bytes pfik_if.pfif_bytes 890 #define pfik_tzero pfik_if.pfif_tzero 891 #define pfik_flags pfik_if.pfif_flags 892 #define pfik_addcnt pfik_if.pfif_addcnt 893 #define pfik_delcnt pfik_if.pfif_delcnt 894 #define pfik_states pfik_if.pfif_states 895 #define pfik_rules pfik_if.pfif_rules 896 897 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 898 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 899 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 900 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 901 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 902 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */ 903 904 struct pf_pdesc { 905 u_int64_t tot_len; /* Make Mickey money */ 906 union { 907 struct tcphdr *tcp; 908 struct udphdr *udp; 909 struct icmp *icmp; 910 #ifdef INET6 911 struct icmp6_hdr *icmp6; 912 #endif /* INET6 */ 913 void *any; 914 } hdr; 915 struct pf_addr baddr; /* address before translation */ 916 struct pf_addr naddr; /* address after translation */ 917 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 918 struct pf_addr *src; 919 struct pf_addr *dst; 920 u_int16_t *ip_sum; 921 u_int32_t p_len; /* total length of payload */ 922 u_int16_t flags; /* Let SCRUB trigger behavior in 923 * state code. Easier than tags */ 924 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 925 sa_family_t af; 926 u_int8_t proto; 927 u_int8_t tos; 928 }; 929 930 /* flags for RDR options */ 931 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 932 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 933 934 /* Reasons code for passing/dropping a packet */ 935 #define PFRES_MATCH 0 /* Explicit match of a rule */ 936 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 937 #define PFRES_FRAG 2 /* Dropping following fragment */ 938 #define PFRES_SHORT 3 /* Dropping short packet */ 939 #define PFRES_NORM 4 /* Dropping by normalizer */ 940 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 941 #define PFRES_MAX 6 /* total+1 */ 942 943 #define PFRES_NAMES { \ 944 "match", \ 945 "bad-offset", \ 946 "fragment", \ 947 "short", \ 948 "normalize", \ 949 "memory", \ 950 NULL \ 951 } 952 953 /* UDP state enumeration */ 954 #define PFUDPS_NO_TRAFFIC 0 955 #define PFUDPS_SINGLE 1 956 #define PFUDPS_MULTIPLE 2 957 958 #define PFUDPS_NSTATES 3 /* number of state levels */ 959 960 #define PFUDPS_NAMES { \ 961 "NO_TRAFFIC", \ 962 "SINGLE", \ 963 "MULTIPLE", \ 964 NULL \ 965 } 966 967 /* Other protocol state enumeration */ 968 #define PFOTHERS_NO_TRAFFIC 0 969 #define PFOTHERS_SINGLE 1 970 #define PFOTHERS_MULTIPLE 2 971 972 #define PFOTHERS_NSTATES 3 /* number of state levels */ 973 974 #define PFOTHERS_NAMES { \ 975 "NO_TRAFFIC", \ 976 "SINGLE", \ 977 "MULTIPLE", \ 978 NULL \ 979 } 980 981 #define FCNT_STATE_SEARCH 0 982 #define FCNT_STATE_INSERT 1 983 #define FCNT_STATE_REMOVALS 2 984 #define FCNT_MAX 3 985 986 #define SCNT_SRC_NODE_SEARCH 0 987 #define SCNT_SRC_NODE_INSERT 1 988 #define SCNT_SRC_NODE_REMOVALS 2 989 #define SCNT_MAX 3 990 991 #define ACTION_SET(a, x) \ 992 do { \ 993 if ((a) != NULL) \ 994 *(a) = (x); \ 995 } while (0) 996 997 #define REASON_SET(a, x) \ 998 do { \ 999 if ((a) != NULL) \ 1000 *(a) = (x); \ 1001 if (x < PFRES_MAX) \ 1002 pf_status.counters[x]++; \ 1003 } while (0) 1004 1005 struct pf_status { 1006 u_int64_t counters[PFRES_MAX]; 1007 u_int64_t fcounters[FCNT_MAX]; 1008 u_int64_t scounters[SCNT_MAX]; 1009 u_int64_t pcounters[2][2][3]; 1010 u_int64_t bcounters[2][2]; 1011 u_int64_t stateid; 1012 u_int32_t running; 1013 u_int32_t states; 1014 u_int32_t src_nodes; 1015 u_int32_t since; 1016 u_int32_t debug; 1017 u_int32_t hostid; 1018 char ifname[IFNAMSIZ]; 1019 }; 1020 1021 struct cbq_opts { 1022 u_int minburst; 1023 u_int maxburst; 1024 u_int pktsize; 1025 u_int maxpktsize; 1026 u_int ns_per_byte; 1027 u_int maxidle; 1028 int minidle; 1029 u_int offtime; 1030 int flags; 1031 }; 1032 1033 struct priq_opts { 1034 int flags; 1035 }; 1036 1037 struct hfsc_opts { 1038 /* real-time service curve */ 1039 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1040 u_int rtsc_d; /* the x-projection of m1 in msec */ 1041 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1042 /* link-sharing service curve */ 1043 u_int lssc_m1; 1044 u_int lssc_d; 1045 u_int lssc_m2; 1046 /* upper-limit service curve */ 1047 u_int ulsc_m1; 1048 u_int ulsc_d; 1049 u_int ulsc_m2; 1050 int flags; 1051 }; 1052 1053 /* 1054 * XXX this needs some work 1055 */ 1056 struct fairq_opts { 1057 u_int nbuckets; /* hash buckets */ 1058 u_int hogs_m1; /* hog detection bandwidth */ 1059 int flags; 1060 1061 /* link-sharing service curve */ 1062 u_int lssc_m1; 1063 u_int lssc_d; 1064 u_int lssc_m2; 1065 }; 1066 1067 struct pf_altq { 1068 char ifname[IFNAMSIZ]; 1069 1070 void *altq_disc; /* discipline-specific state */ 1071 TAILQ_ENTRY(pf_altq) entries; 1072 1073 /* scheduler spec */ 1074 u_int8_t scheduler; /* scheduler type */ 1075 u_int16_t tbrsize; /* tokenbucket regulator size */ 1076 u_int32_t ifbandwidth; /* interface bandwidth */ 1077 1078 /* queue spec */ 1079 char qname[PF_QNAME_SIZE]; /* queue name */ 1080 char parent[PF_QNAME_SIZE]; /* parent name */ 1081 u_int32_t parent_qid; /* parent queue id */ 1082 u_int32_t bandwidth; /* queue bandwidth */ 1083 u_int8_t priority; /* priority */ 1084 u_int16_t qlimit; /* queue size limit */ 1085 u_int16_t flags; /* misc flags */ 1086 union { 1087 struct cbq_opts cbq_opts; 1088 struct priq_opts priq_opts; 1089 struct hfsc_opts hfsc_opts; 1090 struct fairq_opts fairq_opts; 1091 } pq_u; 1092 1093 u_int32_t qid; /* return value */ 1094 }; 1095 1096 struct pf_tagname { 1097 TAILQ_ENTRY(pf_tagname) entries; 1098 char name[PF_TAG_NAME_SIZE]; 1099 u_int16_t tag; 1100 int ref; 1101 }; 1102 1103 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1104 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1105 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1106 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1107 1108 /* 1109 * ioctl parameter structures 1110 */ 1111 1112 struct pfioc_pooladdr { 1113 u_int32_t action; 1114 u_int32_t ticket; 1115 u_int32_t nr; 1116 u_int32_t r_num; 1117 u_int8_t r_action; 1118 u_int8_t r_last; 1119 u_int8_t af; 1120 char anchor[PF_ANCHOR_NAME_SIZE]; 1121 char ruleset[PF_RULESET_NAME_SIZE]; 1122 struct pf_pooladdr addr; 1123 }; 1124 1125 struct pfioc_rule { 1126 u_int32_t action; 1127 u_int32_t ticket; 1128 u_int32_t pool_ticket; 1129 u_int32_t nr; 1130 char anchor[PF_ANCHOR_NAME_SIZE]; 1131 char ruleset[PF_RULESET_NAME_SIZE]; 1132 struct pf_rule rule; 1133 }; 1134 1135 struct pfioc_natlook { 1136 struct pf_addr saddr; 1137 struct pf_addr daddr; 1138 struct pf_addr rsaddr; 1139 struct pf_addr rdaddr; 1140 u_int16_t sport; 1141 u_int16_t dport; 1142 u_int16_t rsport; 1143 u_int16_t rdport; 1144 sa_family_t af; 1145 u_int8_t proto; 1146 u_int8_t direction; 1147 }; 1148 1149 struct pfioc_state { 1150 u_int32_t nr; 1151 struct pf_state state; 1152 }; 1153 1154 struct pfioc_state_kill { 1155 /* XXX returns the number of states killed in psk_af */ 1156 sa_family_t psk_af; 1157 int psk_proto; 1158 struct pf_rule_addr psk_src; 1159 struct pf_rule_addr psk_dst; 1160 char psk_ifname[IFNAMSIZ]; 1161 }; 1162 1163 struct pfioc_states { 1164 int ps_len; 1165 union { 1166 caddr_t psu_buf; 1167 struct pf_state *psu_states; 1168 } ps_u; 1169 #define ps_buf ps_u.psu_buf 1170 #define ps_states ps_u.psu_states 1171 }; 1172 1173 struct pfioc_src_nodes { 1174 int psn_len; 1175 union { 1176 caddr_t psu_buf; 1177 struct pf_src_node *psu_src_nodes; 1178 } psn_u; 1179 #define psn_buf psn_u.psu_buf 1180 #define psn_src_nodes psn_u.psu_src_nodes 1181 }; 1182 1183 struct pfioc_if { 1184 char ifname[IFNAMSIZ]; 1185 }; 1186 1187 struct pfioc_tm { 1188 int timeout; 1189 int seconds; 1190 }; 1191 1192 struct pfioc_limit { 1193 int index; 1194 unsigned limit; 1195 }; 1196 1197 struct pfioc_altq { 1198 u_int32_t action; 1199 u_int32_t ticket; 1200 u_int32_t nr; 1201 struct pf_altq altq; 1202 }; 1203 1204 struct pfioc_qstats { 1205 u_int32_t ticket; 1206 u_int32_t nr; 1207 void *buf; 1208 int nbytes; 1209 u_int8_t scheduler; 1210 }; 1211 1212 struct pfioc_anchor { 1213 u_int32_t nr; 1214 char name[PF_ANCHOR_NAME_SIZE]; 1215 }; 1216 1217 struct pfioc_ruleset { 1218 u_int32_t nr; 1219 char anchor[PF_ANCHOR_NAME_SIZE]; 1220 char name[PF_RULESET_NAME_SIZE]; 1221 }; 1222 1223 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1224 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1225 struct pfioc_trans { 1226 int size; /* number of elements */ 1227 int esize; /* size of each element in bytes */ 1228 struct pfioc_trans_e { 1229 int rs_num; 1230 char anchor[PF_ANCHOR_NAME_SIZE]; 1231 char ruleset[PF_RULESET_NAME_SIZE]; 1232 u_int32_t ticket; 1233 } *array; 1234 }; 1235 1236 #define PFR_FLAG_ATOMIC 0x00000001 1237 #define PFR_FLAG_DUMMY 0x00000002 1238 #define PFR_FLAG_FEEDBACK 0x00000004 1239 #define PFR_FLAG_CLSTATS 0x00000008 1240 #define PFR_FLAG_ADDRSTOO 0x00000010 1241 #define PFR_FLAG_REPLACE 0x00000020 1242 #define PFR_FLAG_ALLRSETS 0x00000040 1243 #define PFR_FLAG_ALLMASK 0x0000007F 1244 #ifdef _KERNEL 1245 #define PFR_FLAG_USERIOCTL 0x10000000 1246 #endif 1247 1248 struct pfioc_table { 1249 struct pfr_table pfrio_table; 1250 void *pfrio_buffer; 1251 int pfrio_esize; 1252 int pfrio_size; 1253 int pfrio_size2; 1254 int pfrio_nadd; 1255 int pfrio_ndel; 1256 int pfrio_nchange; 1257 int pfrio_flags; 1258 u_int32_t pfrio_ticket; 1259 }; 1260 #define pfrio_exists pfrio_nadd 1261 #define pfrio_nzero pfrio_nadd 1262 #define pfrio_nmatch pfrio_nadd 1263 #define pfrio_naddr pfrio_size2 1264 #define pfrio_setflag pfrio_size2 1265 #define pfrio_clrflag pfrio_nadd 1266 1267 1268 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1269 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1270 #define PFI_FLAG_ALLMASK 0x0003 1271 1272 struct pfioc_iface { 1273 char pfiio_name[IFNAMSIZ]; 1274 void *pfiio_buffer; 1275 int pfiio_esize; 1276 int pfiio_size; 1277 int pfiio_nzero; 1278 int pfiio_flags; 1279 }; 1280 1281 1282 /* 1283 * ioctl operations 1284 */ 1285 1286 #define DIOCSTART _IO ('D', 1) 1287 #define DIOCSTOP _IO ('D', 2) 1288 #define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1289 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1290 #define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1291 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1292 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1293 /* XXX cut 8 - 17 */ 1294 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1295 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1296 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1297 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1298 #define DIOCCLRSTATUS _IO ('D', 22) 1299 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1300 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1301 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1302 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1303 /* XXX cut 26 - 28 */ 1304 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1305 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1306 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1307 #define DIOCCLRRULECTRS _IO ('D', 38) 1308 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1309 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1310 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1311 #define DIOCSTARTALTQ _IO ('D', 42) 1312 #define DIOCSTOPALTQ _IO ('D', 43) 1313 #define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1314 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1315 #define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1316 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1317 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1318 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1319 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1320 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1321 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1322 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1323 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1324 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1325 #define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1326 #define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1327 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1328 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1329 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1330 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1331 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1332 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1333 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1334 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1335 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1336 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1337 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1338 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1339 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1340 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1341 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1342 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1343 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1344 #define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1345 #define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1346 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1347 #define DIOCOSFPFLUSH _IO('D', 78) 1348 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1349 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1350 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1351 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1352 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1353 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1354 #define DIOCCLRSRCNODES _IO('D', 85) 1355 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1356 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1357 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1358 struct pf_ifspeed { 1359 char ifname[IFNAMSIZ]; 1360 u_int32_t baudrate; 1361 }; 1362 #define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed) 1363 1364 #ifdef _KERNEL 1365 RB_HEAD(pf_src_tree, pf_src_node); 1366 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1367 extern struct pf_src_tree tree_src_tracking; 1368 1369 RB_HEAD(pf_state_tree_id, pf_state); 1370 RB_PROTOTYPE(pf_state_tree_id, pf_state, 1371 entry_id, pf_state_compare_id); 1372 extern struct pf_state_tree_id tree_id; 1373 extern struct pf_state_queue state_updates; 1374 1375 extern struct pf_anchorqueue pf_anchors; 1376 extern struct pf_ruleset pf_main_ruleset; 1377 TAILQ_HEAD(pf_poolqueue, pf_pool); 1378 extern struct pf_poolqueue pf_pools[2]; 1379 TAILQ_HEAD(pf_altqqueue, pf_altq); 1380 extern struct pf_altqqueue pf_altqs[2]; 1381 extern struct pf_palist pf_pabuf; 1382 extern struct pfi_kif **pfi_index2kif; 1383 1384 extern u_int32_t ticket_altqs_active; 1385 extern u_int32_t ticket_altqs_inactive; 1386 extern int altqs_inactive_open; 1387 extern u_int32_t ticket_pabuf; 1388 extern struct pf_altqqueue *pf_altqs_active; 1389 extern struct pf_altqqueue *pf_altqs_inactive; 1390 extern struct pf_poolqueue *pf_pools_active; 1391 extern struct pf_poolqueue *pf_pools_inactive; 1392 extern int pf_tbladdr_setup(struct pf_ruleset *, 1393 struct pf_addr_wrap *); 1394 extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1395 extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1396 extern void pf_calc_skip_steps(struct pf_rulequeue *); 1397 extern void pf_update_anchor_rules(void); 1398 extern vm_zone_t pf_src_tree_pl, pf_rule_pl; 1399 extern vm_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1400 extern vm_zone_t pfr_ktable_pl, pfr_kentry_pl; 1401 extern vm_zone_t pf_cache_pl, pf_cent_pl; 1402 extern vm_zone_t pf_state_scrub_pl; 1403 extern vm_zone_t pfi_addr_pl; 1404 extern void pf_purge_timeout(void *); 1405 extern void pf_purge_expired_src_nodes(void); 1406 extern void pf_purge_expired_states(void); 1407 extern int pf_insert_state(struct pfi_kif *, 1408 struct pf_state *); 1409 extern int pf_insert_src_node(struct pf_src_node **, 1410 struct pf_rule *, struct pf_addr *, 1411 sa_family_t); 1412 void pf_src_tree_remove_state(struct pf_state *); 1413 u_int32_t pf_state_hash(struct pf_state *s); 1414 extern struct pf_state *pf_find_state_byid(struct pf_state *); 1415 extern struct pf_state *pf_find_state_all(struct pf_state *key, 1416 u_int8_t tree, int *more); 1417 extern struct pf_anchor *pf_find_anchor(const char *); 1418 extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1419 extern struct pf_ruleset *pf_find_or_create_ruleset( 1420 char[PF_ANCHOR_NAME_SIZE], 1421 char[PF_RULESET_NAME_SIZE]); 1422 extern void pf_remove_if_empty_ruleset( 1423 struct pf_ruleset *); 1424 1425 extern struct ifnet *sync_ifp; 1426 extern struct pf_rule pf_default_rule; 1427 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1428 u_int8_t); 1429 void pf_rm_rule(struct pf_rulequeue *, 1430 struct pf_rule *); 1431 1432 #ifdef INET 1433 int pf_test(int, struct ifnet *, struct mbuf **); 1434 #endif /* INET */ 1435 1436 #ifdef INET6 1437 int pf_test6(int, struct ifnet *, struct mbuf **); 1438 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1439 struct pf_addr *, struct pf_addr *, u_int8_t); 1440 void pf_addr_inc(struct pf_addr *, sa_family_t); 1441 #endif /* INET6 */ 1442 1443 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1444 sa_family_t); 1445 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1446 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1447 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1448 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1449 struct pf_addr *, sa_family_t); 1450 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1451 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1452 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1453 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1454 1455 void pf_normalize_init(void); 1456 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *); 1457 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *); 1458 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1459 struct pf_pdesc *); 1460 void pf_normalize_tcp_cleanup(struct pf_state *); 1461 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1462 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1463 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1464 u_short *, struct tcphdr *, struct pf_state_peer *, 1465 struct pf_state_peer *, int *); 1466 u_int32_t 1467 pf_state_expires(const struct pf_state *); 1468 void pf_purge_expired_fragments(void); 1469 int pf_routable(struct pf_addr *addr, sa_family_t af); 1470 void pfr_initialize(void); 1471 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1472 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1473 u_int64_t, int, int, int); 1474 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1475 struct pf_addr **, struct pf_addr **, sa_family_t); 1476 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1477 struct pfr_ktable * 1478 pfr_attach_table(struct pf_ruleset *, char *); 1479 void pfr_detach_table(struct pfr_ktable *); 1480 int pfr_clr_tables(struct pfr_table *, int *, int); 1481 int pfr_add_tables(struct pfr_table *, int, int *, int); 1482 int pfr_del_tables(struct pfr_table *, int, int *, int); 1483 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1484 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1485 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1486 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1487 int pfr_clr_addrs(struct pfr_table *, int *, int); 1488 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1489 int); 1490 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1491 int); 1492 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1493 int *, int *, int *, int); 1494 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1495 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1496 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1497 int); 1498 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1499 int); 1500 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1501 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1502 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1503 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1504 int *, u_int32_t, int); 1505 1506 void pfi_initialize(void); 1507 void pfi_cleanup(void); 1508 void pfi_attach_clone(struct if_clone *); 1509 void pfi_attach_ifnet(struct ifnet *); 1510 void pfi_detach_ifnet(struct ifnet *); 1511 struct pfi_kif *pfi_lookup_create(const char *); 1512 struct pfi_kif *pfi_lookup_if(const char *); 1513 int pfi_maybe_destroy(struct pfi_kif *); 1514 struct pfi_kif *pfi_attach_rule(const char *); 1515 void pfi_detach_rule(struct pfi_kif *); 1516 void pfi_attach_state(struct pfi_kif *); 1517 void pfi_detach_state(struct pfi_kif *); 1518 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1519 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1520 void pfi_dynaddr_remove(struct pf_addr_wrap *); 1521 void pfi_fill_oldstatus(struct pf_status *); 1522 int pfi_clr_istats(const char *, int *, int); 1523 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1524 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1525 sa_family_t); 1526 1527 extern struct pfi_statehead pfi_statehead; 1528 1529 u_int16_t pf_tagname2tag(char *); 1530 void pf_tag2tagname(u_int16_t, char *); 1531 void pf_tag_unref(u_int16_t); 1532 void pf_tag_packet(struct mbuf *, int); 1533 u_int32_t pf_qname2qid(char *); 1534 void pf_qid2qname(u_int32_t, char *); 1535 void pf_qid_unref(u_int32_t); 1536 1537 extern struct pf_status pf_status; 1538 extern vm_zone_t pf_frent_pl, pf_frag_pl; 1539 1540 struct pf_pool_limit { 1541 void *pp; 1542 unsigned limit; 1543 }; 1544 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1545 1546 struct pf_frent { 1547 LIST_ENTRY(pf_frent) fr_next; 1548 struct ip *fr_ip; 1549 struct mbuf *fr_m; 1550 }; 1551 1552 struct pf_frcache { 1553 LIST_ENTRY(pf_frcache) fr_next; 1554 uint16_t fr_off; 1555 uint16_t fr_end; 1556 }; 1557 1558 struct pf_fragment { 1559 RB_ENTRY(pf_fragment) fr_entry; 1560 TAILQ_ENTRY(pf_fragment) frag_next; 1561 struct in_addr fr_src; 1562 struct in_addr fr_dst; 1563 u_int8_t fr_p; /* protocol of this fragment */ 1564 u_int8_t fr_flags; /* status flags */ 1565 u_int16_t fr_id; /* fragment id for reassemble */ 1566 u_int16_t fr_max; /* fragment data max */ 1567 u_int32_t fr_timeout; 1568 #define fr_queue fr_u.fru_queue 1569 #define fr_cache fr_u.fru_cache 1570 union { 1571 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1572 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1573 } fr_u; 1574 }; 1575 #endif /* _KERNEL */ 1576 1577 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1578 int pf_osfp_add(struct pf_osfp_ioctl *); 1579 #ifdef _KERNEL 1580 struct pf_osfp_enlist * 1581 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1582 const struct tcphdr *); 1583 #endif /* _KERNEL */ 1584 struct pf_osfp_enlist * 1585 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1586 void pf_osfp_flush(void); 1587 int pf_osfp_get(struct pf_osfp_ioctl *); 1588 int pf_osfp_initialize(void); 1589 void pf_osfp_cleanup(void); 1590 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1591 struct pf_os_fingerprint * 1592 pf_osfp_validate(void); 1593 1594 1595 #endif /* _NET_PFVAR_H_ */ 1596