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/ioccom.h> 43 #include <sys/queue.h> 44 #include <sys/tree.h> 45 46 #include <net/radix.h> 47 #include <net/if_clone.h> 48 #include <netinet/in.h> 49 50 #ifdef _KERNEL 51 #include <vm/vm_zone.h> 52 #endif 53 54 /* 55 * XXX 56 * If we include <netipsec/keydb.h>, we need _KERNEL definition. 57 * This makes pfctl compilation difficult. 58 */ 59 union sockaddr_union { 60 struct sockaddr sa; 61 struct sockaddr_in sin; 62 struct sockaddr_in6 sin6; 63 }; 64 65 #include <netinet/tcp_fsm.h> 66 67 struct ip; 68 69 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 70 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 71 72 enum { PF_INOUT, PF_IN, PF_OUT }; 73 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 74 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT, 75 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 76 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 77 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 78 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 79 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 80 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 81 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 82 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 83 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 84 /* 85 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 86 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 87 */ 88 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 89 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 90 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 91 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 92 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 93 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 94 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 95 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 96 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 97 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 98 #define PF_POOL_IDMASK 0x0f 99 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 100 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 101 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 102 PF_ADDR_TABLE }; 103 #define PF_POOL_TYPEMASK 0x0f 104 #define PF_POOL_STICKYADDR 0x20 105 #define PF_WSCALE_FLAG 0x80 106 #define PF_WSCALE_MASK 0x0f 107 108 struct pf_addr { 109 union { 110 struct in_addr v4; 111 struct in6_addr v6; 112 u_int8_t addr8[16]; 113 u_int16_t addr16[8]; 114 u_int32_t addr32[4]; 115 } pfa; /* 128-bit address */ 116 #define v4 pfa.v4 117 #define v6 pfa.v6 118 #define addr8 pfa.addr8 119 #define addr16 pfa.addr16 120 #define addr32 pfa.addr32 121 }; 122 123 #define PF_TABLE_NAME_SIZE 32 124 125 #define PFI_AFLAG_NETWORK 0x01 126 #define PFI_AFLAG_BROADCAST 0x02 127 #define PFI_AFLAG_PEER 0x04 128 #define PFI_AFLAG_MODEMASK 0x07 129 #define PFI_AFLAG_NOALIAS 0x08 130 131 struct pf_addr_wrap { 132 union { 133 struct { 134 struct pf_addr addr; 135 struct pf_addr mask; 136 } a; 137 char ifname[IFNAMSIZ]; 138 char tblname[PF_TABLE_NAME_SIZE]; 139 } v; 140 union { 141 struct pfi_dynaddr *dyn; 142 struct pfr_ktable *tbl; 143 int dyncnt; 144 int tblcnt; 145 } p; 146 u_int8_t type; /* PF_ADDR_* */ 147 u_int8_t iflags; /* PFI_AFLAG_* */ 148 }; 149 150 #ifdef _KERNEL 151 152 struct pfi_dynaddr { 153 struct pf_addr pfid_addr4; 154 struct pf_addr pfid_mask4; 155 struct pf_addr pfid_addr6; 156 struct pf_addr pfid_mask6; 157 struct pfr_ktable *pfid_kt; 158 struct pfi_kif *pfid_kif; 159 void *pfid_hook_cookie; 160 int pfid_net; /* optional mask, or 128 */ 161 int pfid_acnt4; /* address count, IPv4 */ 162 int pfid_acnt6; /* address count, IPv6 */ 163 sa_family_t pfid_af; /* rule address family */ 164 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 165 }; 166 167 /* 168 * Address manipulation macros 169 */ 170 171 /* XXX correct values for zinit? */ 172 #define ZONE_CREATE(var, type, desc) \ 173 var = zinit(desc, sizeof(type), 1, ZONE_DESTROYABLE, 1); \ 174 if (var == NULL) break 175 #define ZONE_DESTROY(a) zdestroy(a) 176 177 #define pool_get(p, f) zalloc(*(p)) 178 #define pool_put(p, o) zfree(*(p), (o)) 179 180 #define PF_NAME "pf" 181 182 #define PF_MODVER 1 183 #define PFLOG_MODVER 1 184 #define PFSYNC_MODVER 1 185 186 #define PFLOG_MINVER 1 187 #define PFLOG_PREFVER PFLOG_MODVER 188 #define PFLOG_MAXVER 1 189 #define PFSYNC_MINVER 1 190 #define PFSYNC_PREFVER PFSYNC_MODVER 191 #define PFSYNC_MAXVER 1 192 193 /* prototyped for pf_subr.c */ 194 struct hook_desc { 195 TAILQ_ENTRY(hook_desc) hd_list; 196 void (*hd_fn)(void *); 197 void *hd_arg; 198 }; 199 TAILQ_HEAD(hook_desc_head, hook_desc); 200 201 void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *); 202 void hook_disestablish(struct hook_desc_head *, void *); 203 void dohooks(struct hook_desc_head *, int); 204 205 #define HOOK_REMOVE 0x01 206 #define HOOK_FREE 0x02 207 208 #ifdef INET 209 #ifndef INET6 210 #define PF_INET_ONLY 211 #endif /* ! INET6 */ 212 #endif /* INET */ 213 214 #ifdef INET6 215 #ifndef INET 216 #define PF_INET6_ONLY 217 #endif /* ! INET */ 218 #endif /* INET6 */ 219 220 #ifdef INET 221 #ifdef INET6 222 #define PF_INET_INET6 223 #endif /* INET6 */ 224 #endif /* INET */ 225 226 #else 227 228 #define PF_INET_INET6 229 230 #endif /* _KERNEL */ 231 232 /* Both IPv4 and IPv6 */ 233 #ifdef PF_INET_INET6 234 235 #define PF_AEQ(a, b, c) \ 236 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 237 ((a)->addr32[3] == (b)->addr32[3] && \ 238 (a)->addr32[2] == (b)->addr32[2] && \ 239 (a)->addr32[1] == (b)->addr32[1] && \ 240 (a)->addr32[0] == (b)->addr32[0])) \ 241 242 #define PF_ANEQ(a, b, c) \ 243 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 244 ((a)->addr32[3] != (b)->addr32[3] || \ 245 (a)->addr32[2] != (b)->addr32[2] || \ 246 (a)->addr32[1] != (b)->addr32[1] || \ 247 (a)->addr32[0] != (b)->addr32[0])) \ 248 249 #define PF_AZERO(a, c) \ 250 ((c == AF_INET && !(a)->addr32[0]) || \ 251 (!(a)->addr32[0] && !(a)->addr32[1] && \ 252 !(a)->addr32[2] && !(a)->addr32[3] )) \ 253 254 #define PF_MATCHA(n, a, m, b, f) \ 255 pf_match_addr(n, a, m, b, f) 256 257 #define PF_ACPY(a, b, f) \ 258 pf_addrcpy(a, b, f) 259 260 #define PF_AINC(a, f) \ 261 pf_addr_inc(a, f) 262 263 #define PF_POOLMASK(a, b, c, d, f) \ 264 pf_poolmask(a, b, c, d, f) 265 266 #else 267 268 /* Just IPv6 */ 269 270 #ifdef PF_INET6_ONLY 271 272 #define PF_AEQ(a, b, c) \ 273 ((a)->addr32[3] == (b)->addr32[3] && \ 274 (a)->addr32[2] == (b)->addr32[2] && \ 275 (a)->addr32[1] == (b)->addr32[1] && \ 276 (a)->addr32[0] == (b)->addr32[0]) \ 277 278 #define PF_ANEQ(a, b, c) \ 279 ((a)->addr32[3] != (b)->addr32[3] || \ 280 (a)->addr32[2] != (b)->addr32[2] || \ 281 (a)->addr32[1] != (b)->addr32[1] || \ 282 (a)->addr32[0] != (b)->addr32[0]) \ 283 284 #define PF_AZERO(a, c) \ 285 (!(a)->addr32[0] && \ 286 !(a)->addr32[1] && \ 287 !(a)->addr32[2] && \ 288 !(a)->addr32[3] ) \ 289 290 #define PF_MATCHA(n, a, m, b, f) \ 291 pf_match_addr(n, a, m, b, f) 292 293 #define PF_ACPY(a, b, f) \ 294 pf_addrcpy(a, b, f) 295 296 #define PF_AINC(a, f) \ 297 pf_addr_inc(a, f) 298 299 #define PF_POOLMASK(a, b, c, d, f) \ 300 pf_poolmask(a, b, c, d, f) 301 302 #else 303 304 /* Just IPv4 */ 305 #ifdef PF_INET_ONLY 306 307 #define PF_AEQ(a, b, c) \ 308 ((a)->addr32[0] == (b)->addr32[0]) 309 310 #define PF_ANEQ(a, b, c) \ 311 ((a)->addr32[0] != (b)->addr32[0]) 312 313 #define PF_AZERO(a, c) \ 314 (!(a)->addr32[0]) 315 316 #define PF_MATCHA(n, a, m, b, f) \ 317 pf_match_addr(n, a, m, b, f) 318 319 #define PF_ACPY(a, b, f) \ 320 (a)->v4.s_addr = (b)->v4.s_addr 321 322 #define PF_AINC(a, f) \ 323 do { \ 324 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 325 } while (0) 326 327 #define PF_POOLMASK(a, b, c, d, f) \ 328 do { \ 329 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 330 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 331 } while (0) 332 333 #endif /* PF_INET_ONLY */ 334 #endif /* PF_INET6_ONLY */ 335 #endif /* PF_INET_INET6 */ 336 337 #define PF_MISMATCHAW(aw, x, af, not) \ 338 ( \ 339 (((aw)->type == PF_ADDR_NOROUTE && \ 340 pf_routable((x), (af))) || \ 341 ((aw)->type == PF_ADDR_TABLE && \ 342 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 343 ((aw)->type == PF_ADDR_DYNIFTL && \ 344 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 345 ((aw)->type == PF_ADDR_ADDRMASK && \ 346 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 347 !PF_MATCHA(0, &(aw)->v.a.addr, \ 348 &(aw)->v.a.mask, (x), (af)))) != \ 349 (not) \ 350 ) 351 352 struct pf_rule_uid { 353 uid_t uid[2]; 354 u_int8_t op; 355 }; 356 357 struct pf_rule_gid { 358 uid_t gid[2]; 359 u_int8_t op; 360 }; 361 362 struct pf_rule_addr { 363 struct pf_addr_wrap addr; 364 u_int16_t port[2]; 365 u_int8_t not; 366 u_int8_t port_op; 367 }; 368 369 struct pf_pooladdr { 370 struct pf_addr_wrap addr; 371 TAILQ_ENTRY(pf_pooladdr) entries; 372 char ifname[IFNAMSIZ]; 373 struct pfi_kif *kif; 374 }; 375 376 TAILQ_HEAD(pf_palist, pf_pooladdr); 377 378 struct pf_poolhashkey { 379 union { 380 u_int8_t key8[16]; 381 u_int16_t key16[8]; 382 u_int32_t key32[4]; 383 } pfk; /* 128-bit hash key */ 384 #define key8 pfk.key8 385 #define key16 pfk.key16 386 #define key32 pfk.key32 387 }; 388 389 struct pf_pool { 390 struct pf_palist list; 391 struct pf_pooladdr *cur; 392 struct pf_poolhashkey key; 393 struct pf_addr counter; 394 int tblidx; 395 u_int16_t proxy_port[2]; 396 u_int8_t port_op; 397 u_int8_t opts; 398 }; 399 400 401 /* A packed Operating System description for fingerprinting */ 402 typedef u_int32_t pf_osfp_t; 403 #define PF_OSFP_ANY ((pf_osfp_t)0) 404 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 405 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 406 407 struct pf_osfp_entry { 408 SLIST_ENTRY(pf_osfp_entry) fp_entry; 409 pf_osfp_t fp_os; 410 int fp_enflags; 411 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 412 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 413 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 414 #define PF_OSFP_LEN 32 415 char fp_class_nm[PF_OSFP_LEN]; 416 char fp_version_nm[PF_OSFP_LEN]; 417 char fp_subtype_nm[PF_OSFP_LEN]; 418 }; 419 #define PF_OSFP_ENTRY_EQ(a, b) \ 420 ((a)->fp_os == (b)->fp_os && \ 421 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 422 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 423 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 424 425 /* handle pf_osfp_t packing */ 426 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 427 #define _FP_UNUSED_BITS 1 428 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 429 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 430 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 431 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 432 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 433 ((1 << _FP_CLASS_BITS) - 1); \ 434 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 435 ((1 << _FP_VERSION_BITS) - 1);\ 436 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 437 } while(0) 438 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 439 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 440 + _FP_SUBTYPE_BITS); \ 441 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 442 _FP_SUBTYPE_BITS; \ 443 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 444 } while(0) 445 446 /* the fingerprint of an OSes TCP SYN packet */ 447 typedef u_int64_t pf_tcpopts_t; 448 struct pf_os_fingerprint { 449 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 450 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 451 u_int16_t fp_wsize; /* TCP window size */ 452 u_int16_t fp_psize; /* ip->ip_len */ 453 u_int16_t fp_mss; /* TCP MSS */ 454 u_int16_t fp_flags; 455 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 456 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 457 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 458 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 459 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 460 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 461 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 462 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 463 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 464 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 465 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 466 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 467 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 468 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 469 u_int8_t fp_optcnt; /* TCP option count */ 470 u_int8_t fp_wscale; /* TCP window scaling */ 471 u_int8_t fp_ttl; /* IPv4 TTL */ 472 #define PF_OSFP_MAXTTL_OFFSET 40 473 /* TCP options packing */ 474 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 475 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 476 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 477 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 478 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 479 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 480 #define PF_OSFP_MAX_OPTS \ 481 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 482 / PF_OSFP_TCPOPT_BITS 483 484 SLIST_ENTRY(pf_os_fingerprint) fp_next; 485 }; 486 487 struct pf_osfp_ioctl { 488 struct pf_osfp_entry fp_os; 489 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 490 u_int16_t fp_wsize; /* TCP window size */ 491 u_int16_t fp_psize; /* ip->ip_len */ 492 u_int16_t fp_mss; /* TCP MSS */ 493 u_int16_t fp_flags; 494 u_int8_t fp_optcnt; /* TCP option count */ 495 u_int8_t fp_wscale; /* TCP window scaling */ 496 u_int8_t fp_ttl; /* IPv4 TTL */ 497 498 int fp_getnum; /* DIOCOSFPGET number */ 499 }; 500 501 502 union pf_rule_ptr { 503 struct pf_rule *ptr; 504 u_int32_t nr; 505 }; 506 507 struct pf_rule { 508 struct pf_rule_addr src; 509 struct pf_rule_addr dst; 510 #define PF_SKIP_IFP 0 511 #define PF_SKIP_DIR 1 512 #define PF_SKIP_AF 2 513 #define PF_SKIP_PROTO 3 514 #define PF_SKIP_SRC_ADDR 4 515 #define PF_SKIP_SRC_PORT 5 516 #define PF_SKIP_DST_ADDR 6 517 #define PF_SKIP_DST_PORT 7 518 #define PF_SKIP_COUNT 8 519 union pf_rule_ptr skip[PF_SKIP_COUNT]; 520 #define PF_RULE_LABEL_SIZE 64 521 char label[PF_RULE_LABEL_SIZE]; 522 #define PF_QNAME_SIZE 16 523 char ifname[IFNAMSIZ]; 524 char qname[PF_QNAME_SIZE]; 525 char pqname[PF_QNAME_SIZE]; 526 #define PF_ANCHOR_NAME_SIZE 16 527 char anchorname[PF_ANCHOR_NAME_SIZE]; 528 #define PF_TAG_NAME_SIZE 16 529 char tagname[PF_TAG_NAME_SIZE]; 530 char match_tagname[PF_TAG_NAME_SIZE]; 531 532 TAILQ_ENTRY(pf_rule) entries; 533 struct pf_pool rpool; 534 535 u_int64_t evaluations; 536 u_int64_t packets; 537 u_int64_t bytes; 538 539 struct pfi_kif *kif; 540 struct pf_anchor *anchor; 541 542 pf_osfp_t os_fingerprint; 543 544 u_int32_t timeout[PFTM_MAX]; 545 u_int32_t states; 546 u_int32_t max_states; 547 u_int32_t src_nodes; 548 u_int32_t max_src_nodes; 549 u_int32_t max_src_states; 550 u_int32_t qid; 551 u_int32_t pqid; 552 u_int32_t rt_listid; 553 u_int32_t nr; 554 u_int32_t prob; 555 556 u_int16_t return_icmp; 557 u_int16_t return_icmp6; 558 u_int16_t max_mss; 559 u_int16_t tag; 560 u_int16_t match_tag; 561 562 struct pf_rule_uid uid; 563 struct pf_rule_gid gid; 564 565 u_int32_t rule_flag; 566 u_int8_t action; 567 u_int8_t direction; 568 u_int8_t log; 569 u_int8_t quick; 570 u_int8_t ifnot; 571 u_int8_t match_tag_not; 572 u_int8_t natpass; 573 574 #define PF_STATE_NORMAL 0x1 575 #define PF_STATE_MODULATE 0x2 576 #define PF_STATE_SYNPROXY 0x3 577 u_int8_t keep_state; 578 sa_family_t af; 579 u_int8_t proto; 580 u_int8_t type; 581 u_int8_t code; 582 u_int8_t flags; 583 u_int8_t flagset; 584 u_int8_t min_ttl; 585 u_int8_t allow_opts; 586 u_int8_t rt; 587 u_int8_t return_ttl; 588 u_int8_t tos; 589 #define PF_PICKUPS_UNSPECIFIED 0 590 #define PF_PICKUPS_DISABLED 1 591 #define PF_PICKUPS_HASHONLY 2 592 #define PF_PICKUPS_ENABLED 3 593 u_int8_t pickup_mode; 594 u_int8_t unused01; /* available for use */ 595 }; 596 597 /* rule flags */ 598 #define PFRULE_DROP 0x0000 599 #define PFRULE_RETURNRST 0x0001 600 #define PFRULE_FRAGMENT 0x0002 601 #define PFRULE_RETURNICMP 0x0004 602 #define PFRULE_RETURN 0x0008 603 #define PFRULE_NOSYNC 0x0010 604 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 605 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 606 607 /* scrub flags */ 608 #define PFRULE_NODF 0x0100 609 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 610 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 611 #define PFRULE_RANDOMID 0x0800 612 #define PFRULE_REASSEMBLE_TCP 0x1000 613 614 /* rule flags again */ 615 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 616 #define PFRULE_GRBOUND 0x00020000 /* group-bound */ 617 618 #define PFSTATE_HIWAT 10000 /* default state table size */ 619 620 struct pf_src_node { 621 RB_ENTRY(pf_src_node) entry; 622 struct pf_addr addr; 623 struct pf_addr raddr; 624 union pf_rule_ptr rule; 625 struct pfi_kif *kif; 626 u_int32_t bytes; 627 u_int32_t packets; 628 u_int32_t states; 629 u_int32_t creation; 630 u_int32_t expire; 631 sa_family_t af; 632 u_int8_t ruletype; 633 }; 634 635 #define PFSNODE_HIWAT 10000 /* default source node table size */ 636 637 struct pf_state_scrub { 638 u_int16_t pfss_flags; 639 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 640 u_int8_t pfss_ttl; /* stashed TTL */ 641 u_int8_t pad; 642 u_int32_t pfss_ts_mod; /* timestamp modulation */ 643 }; 644 645 struct pf_state_host { 646 struct pf_addr addr; 647 u_int16_t port; 648 u_int16_t pad; 649 }; 650 651 struct pf_state_peer { 652 u_int32_t seqlo; /* Max sequence number sent */ 653 u_int32_t seqhi; /* Max the other end ACKd + win */ 654 u_int32_t seqdiff; /* Sequence number modulator */ 655 u_int16_t max_win; /* largest window (pre scaling) */ 656 u_int8_t state; /* active state level */ 657 u_int8_t wscale; /* window scaling factor */ 658 u_int16_t mss; /* Maximum segment size option */ 659 struct pf_state_scrub *scrub; /* state is scrubbed */ 660 }; 661 662 TAILQ_HEAD(pf_state_queue, pf_state); 663 664 struct pf_state { 665 u_int64_t id; 666 union { 667 struct { 668 RB_ENTRY(pf_state) entry_lan_ext; 669 RB_ENTRY(pf_state) entry_ext_gwy; 670 RB_ENTRY(pf_state) entry_id; 671 TAILQ_ENTRY(pf_state) entry_updates; 672 struct pfi_kif *kif; 673 } s; 674 char ifname[IFNAMSIZ]; 675 } u; 676 struct pf_state_host lan; 677 struct pf_state_host gwy; 678 struct pf_state_host ext; 679 struct pf_state_peer src; 680 struct pf_state_peer dst; 681 union pf_rule_ptr rule; 682 union pf_rule_ptr anchor; 683 union pf_rule_ptr nat_rule; 684 struct pf_addr rt_addr; 685 struct pfi_kif *rt_kif; 686 struct pf_src_node *src_node; 687 struct pf_src_node *nat_src_node; 688 u_int32_t hash; 689 u_int32_t creation; 690 u_int32_t expire; 691 u_int32_t pfsync_time; 692 u_int32_t packets[2]; 693 u_int32_t bytes[2]; 694 u_int32_t creatorid; 695 sa_family_t af; 696 u_int8_t proto; 697 u_int8_t direction; 698 u_int8_t log; 699 u_int8_t allow_opts; 700 u_int8_t timeout; 701 u_int8_t sync_flags; 702 #define PFSTATE_NOSYNC 0x01 703 #define PFSTATE_FROMSYNC 0x02 704 #define PFSTATE_GOT_SYN1 0x04 /* got SYN in one direction */ 705 #define PFSTATE_GOT_SYN2 0x08 /* got SYN in the other direction */ 706 u_int8_t pickup_mode; 707 u_int8_t pad; 708 }; 709 710 #define PFSTATE_GOT_SYN_MASK (PFSTATE_GOT_SYN1|PFSTATE_GOT_SYN2) 711 712 TAILQ_HEAD(pf_rulequeue, pf_rule); 713 714 struct pf_anchor; 715 716 struct pf_ruleset { 717 TAILQ_ENTRY(pf_ruleset) entries; 718 #define PF_RULESET_NAME_SIZE 16 719 char name[PF_RULESET_NAME_SIZE]; 720 struct { 721 struct pf_rulequeue queues[2]; 722 struct { 723 struct pf_rulequeue *ptr; 724 u_int32_t ticket; 725 int open; 726 } active, inactive; 727 } rules[PF_RULESET_MAX]; 728 struct pf_anchor *anchor; 729 u_int32_t tticket; 730 int tables; 731 int topen; 732 }; 733 734 TAILQ_HEAD(pf_rulesetqueue, pf_ruleset); 735 736 struct pf_anchor { 737 TAILQ_ENTRY(pf_anchor) entries; 738 char name[PF_ANCHOR_NAME_SIZE]; 739 struct pf_rulesetqueue rulesets; 740 int tables; 741 }; 742 743 TAILQ_HEAD(pf_anchorqueue, pf_anchor); 744 745 #define PF_RESERVED_ANCHOR "_pf" 746 #define PF_INTERFACE_RULESET "_if" 747 748 #define PFR_TFLAG_PERSIST 0x00000001 749 #define PFR_TFLAG_CONST 0x00000002 750 #define PFR_TFLAG_ACTIVE 0x00000004 751 #define PFR_TFLAG_INACTIVE 0x00000008 752 #define PFR_TFLAG_REFERENCED 0x00000010 753 #define PFR_TFLAG_REFDANCHOR 0x00000020 754 #define PFR_TFLAG_USRMASK 0x00000003 755 #define PFR_TFLAG_SETMASK 0x0000003C 756 #define PFR_TFLAG_ALLMASK 0x0000003F 757 758 struct pfr_table { 759 char pfrt_anchor[PF_ANCHOR_NAME_SIZE]; 760 char pfrt_ruleset[PF_RULESET_NAME_SIZE]; 761 char pfrt_name[PF_TABLE_NAME_SIZE]; 762 u_int32_t pfrt_flags; 763 u_int8_t pfrt_fback; 764 }; 765 766 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 767 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 768 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 769 770 struct pfr_addr { 771 union { 772 struct in_addr _pfra_ip4addr; 773 struct in6_addr _pfra_ip6addr; 774 } pfra_u; 775 u_int8_t pfra_af; 776 u_int8_t pfra_net; 777 u_int8_t pfra_not; 778 u_int8_t pfra_fback; 779 }; 780 #define pfra_ip4addr pfra_u._pfra_ip4addr 781 #define pfra_ip6addr pfra_u._pfra_ip6addr 782 783 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 784 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 785 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 786 787 struct pfr_astats { 788 struct pfr_addr pfras_a; 789 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 790 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 791 long pfras_tzero; 792 }; 793 794 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 795 796 struct pfr_tstats { 797 struct pfr_table pfrts_t; 798 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 799 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 800 u_int64_t pfrts_match; 801 u_int64_t pfrts_nomatch; 802 long pfrts_tzero; 803 int pfrts_cnt; 804 int pfrts_refcnt[PFR_REFCNT_MAX]; 805 }; 806 #define pfrts_name pfrts_t.pfrt_name 807 #define pfrts_flags pfrts_t.pfrt_flags 808 809 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 810 struct pfr_kentry { 811 struct radix_node pfrke_node[2]; 812 union sockaddr_union pfrke_sa; 813 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 814 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 815 SLIST_ENTRY(pfr_kentry) pfrke_workq; 816 long pfrke_tzero; 817 u_int8_t pfrke_af; 818 u_int8_t pfrke_net; 819 u_int8_t pfrke_not; 820 u_int8_t pfrke_mark; 821 }; 822 823 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 824 RB_HEAD(pfr_ktablehead, pfr_ktable); 825 struct pfr_ktable { 826 struct pfr_tstats pfrkt_ts; 827 RB_ENTRY(pfr_ktable) pfrkt_tree; 828 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 829 struct radix_node_head *pfrkt_ip4; 830 struct radix_node_head *pfrkt_ip6; 831 struct pfr_ktable *pfrkt_shadow; 832 struct pfr_ktable *pfrkt_root; 833 struct pf_ruleset *pfrkt_rs; 834 long pfrkt_larg; 835 int pfrkt_nflags; 836 }; 837 #define pfrkt_t pfrkt_ts.pfrts_t 838 #define pfrkt_name pfrkt_t.pfrt_name 839 #define pfrkt_anchor pfrkt_t.pfrt_anchor 840 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 841 #define pfrkt_flags pfrkt_t.pfrt_flags 842 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 843 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 844 #define pfrkt_packets pfrkt_ts.pfrts_packets 845 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 846 #define pfrkt_match pfrkt_ts.pfrts_match 847 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 848 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 849 850 RB_HEAD(pf_state_tree_lan_ext, pf_state); 851 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 852 u.s.entry_lan_ext, pf_state_compare_lan_ext); 853 854 RB_HEAD(pf_state_tree_ext_gwy, pf_state); 855 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 856 u.s.entry_ext_gwy, pf_state_compare_ext_gwy); 857 858 struct pfi_if { 859 char pfif_name[IFNAMSIZ]; 860 u_int64_t pfif_packets[2][2][2]; 861 u_int64_t pfif_bytes[2][2][2]; 862 u_int64_t pfif_addcnt; 863 u_int64_t pfif_delcnt; 864 long pfif_tzero; 865 int pfif_states; 866 int pfif_rules; 867 int pfif_flags; 868 }; 869 870 TAILQ_HEAD(pfi_grouphead, pfi_kif); 871 TAILQ_HEAD(pfi_statehead, pfi_kif); 872 RB_HEAD(pfi_ifhead, pfi_kif); 873 struct pfi_kif { 874 struct pfi_if pfik_if; 875 RB_ENTRY(pfi_kif) pfik_tree; 876 struct pf_state_tree_lan_ext pfik_lan_ext; 877 struct pf_state_tree_ext_gwy pfik_ext_gwy; 878 struct pfi_grouphead pfik_grouphead; 879 TAILQ_ENTRY(pfi_kif) pfik_instances; 880 TAILQ_ENTRY(pfi_kif) pfik_w_states; 881 struct hook_desc_head *pfik_ah_head; 882 void *pfik_ah_cookie; 883 struct pfi_kif *pfik_parent; 884 struct ifnet *pfik_ifp; 885 int pfik_states; 886 int pfik_rules; 887 }; 888 #define pfik_name pfik_if.pfif_name 889 #define pfik_packets pfik_if.pfif_packets 890 #define pfik_bytes pfik_if.pfif_bytes 891 #define pfik_tzero pfik_if.pfif_tzero 892 #define pfik_flags pfik_if.pfif_flags 893 #define pfik_addcnt pfik_if.pfif_addcnt 894 #define pfik_delcnt pfik_if.pfif_delcnt 895 #define pfik_states pfik_if.pfif_states 896 #define pfik_rules pfik_if.pfif_rules 897 898 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 899 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 900 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 901 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 902 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 903 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */ 904 905 struct pf_pdesc { 906 u_int64_t tot_len; /* Make Mickey money */ 907 union { 908 struct tcphdr *tcp; 909 struct udphdr *udp; 910 struct icmp *icmp; 911 #ifdef INET6 912 struct icmp6_hdr *icmp6; 913 #endif /* INET6 */ 914 void *any; 915 } hdr; 916 struct pf_addr baddr; /* address before translation */ 917 struct pf_addr naddr; /* address after translation */ 918 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 919 struct pf_addr *src; 920 struct pf_addr *dst; 921 u_int16_t *ip_sum; 922 u_int32_t p_len; /* total length of payload */ 923 u_int16_t flags; /* Let SCRUB trigger behavior in 924 * state code. Easier than tags */ 925 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 926 sa_family_t af; 927 u_int8_t proto; 928 u_int8_t tos; 929 }; 930 931 /* flags for RDR options */ 932 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 933 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 934 935 /* Reasons code for passing/dropping a packet */ 936 #define PFRES_MATCH 0 /* Explicit match of a rule */ 937 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 938 #define PFRES_FRAG 2 /* Dropping following fragment */ 939 #define PFRES_SHORT 3 /* Dropping short packet */ 940 #define PFRES_NORM 4 /* Dropping by normalizer */ 941 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 942 #define PFRES_MAX 6 /* total+1 */ 943 944 #define PFRES_NAMES { \ 945 "match", \ 946 "bad-offset", \ 947 "fragment", \ 948 "short", \ 949 "normalize", \ 950 "memory", \ 951 NULL \ 952 } 953 954 /* UDP state enumeration */ 955 #define PFUDPS_NO_TRAFFIC 0 956 #define PFUDPS_SINGLE 1 957 #define PFUDPS_MULTIPLE 2 958 959 #define PFUDPS_NSTATES 3 /* number of state levels */ 960 961 #define PFUDPS_NAMES { \ 962 "NO_TRAFFIC", \ 963 "SINGLE", \ 964 "MULTIPLE", \ 965 NULL \ 966 } 967 968 /* Other protocol state enumeration */ 969 #define PFOTHERS_NO_TRAFFIC 0 970 #define PFOTHERS_SINGLE 1 971 #define PFOTHERS_MULTIPLE 2 972 973 #define PFOTHERS_NSTATES 3 /* number of state levels */ 974 975 #define PFOTHERS_NAMES { \ 976 "NO_TRAFFIC", \ 977 "SINGLE", \ 978 "MULTIPLE", \ 979 NULL \ 980 } 981 982 #define FCNT_STATE_SEARCH 0 983 #define FCNT_STATE_INSERT 1 984 #define FCNT_STATE_REMOVALS 2 985 #define FCNT_MAX 3 986 987 #define SCNT_SRC_NODE_SEARCH 0 988 #define SCNT_SRC_NODE_INSERT 1 989 #define SCNT_SRC_NODE_REMOVALS 2 990 #define SCNT_MAX 3 991 992 #define ACTION_SET(a, x) \ 993 do { \ 994 if ((a) != NULL) \ 995 *(a) = (x); \ 996 } while (0) 997 998 #define REASON_SET(a, x) \ 999 do { \ 1000 if ((a) != NULL) \ 1001 *(a) = (x); \ 1002 if (x < PFRES_MAX) \ 1003 pf_status.counters[x]++; \ 1004 } while (0) 1005 1006 struct pf_status { 1007 u_int64_t counters[PFRES_MAX]; 1008 u_int64_t fcounters[FCNT_MAX]; 1009 u_int64_t scounters[SCNT_MAX]; 1010 u_int64_t pcounters[2][2][3]; 1011 u_int64_t bcounters[2][2]; 1012 u_int64_t stateid; 1013 u_int32_t running; 1014 u_int32_t states; 1015 u_int32_t src_nodes; 1016 u_int32_t since; 1017 u_int32_t debug; 1018 u_int32_t hostid; 1019 char ifname[IFNAMSIZ]; 1020 }; 1021 1022 struct cbq_opts { 1023 u_int minburst; 1024 u_int maxburst; 1025 u_int pktsize; 1026 u_int maxpktsize; 1027 u_int ns_per_byte; 1028 u_int maxidle; 1029 int minidle; 1030 u_int offtime; 1031 int flags; 1032 }; 1033 1034 struct priq_opts { 1035 int flags; 1036 }; 1037 1038 struct hfsc_opts { 1039 /* real-time service curve */ 1040 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1041 u_int rtsc_d; /* the x-projection of m1 in msec */ 1042 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1043 /* link-sharing service curve */ 1044 u_int lssc_m1; 1045 u_int lssc_d; 1046 u_int lssc_m2; 1047 /* upper-limit service curve */ 1048 u_int ulsc_m1; 1049 u_int ulsc_d; 1050 u_int ulsc_m2; 1051 int flags; 1052 }; 1053 1054 /* 1055 * XXX this needs some work 1056 */ 1057 struct fairq_opts { 1058 u_int nbuckets; /* hash buckets */ 1059 u_int hogs_m1; /* hog detection bandwidth */ 1060 int flags; 1061 1062 /* link-sharing service curve */ 1063 u_int lssc_m1; 1064 u_int lssc_d; 1065 u_int lssc_m2; 1066 }; 1067 1068 struct pf_altq { 1069 char ifname[IFNAMSIZ]; 1070 1071 void *altq_disc; /* discipline-specific state */ 1072 TAILQ_ENTRY(pf_altq) entries; 1073 1074 /* scheduler spec */ 1075 u_int8_t scheduler; /* scheduler type */ 1076 u_int16_t tbrsize; /* tokenbucket regulator size */ 1077 u_int32_t ifbandwidth; /* interface bandwidth */ 1078 1079 /* queue spec */ 1080 char qname[PF_QNAME_SIZE]; /* queue name */ 1081 char parent[PF_QNAME_SIZE]; /* parent name */ 1082 u_int32_t parent_qid; /* parent queue id */ 1083 u_int32_t bandwidth; /* queue bandwidth */ 1084 u_int8_t priority; /* priority */ 1085 u_int16_t qlimit; /* queue size limit */ 1086 u_int16_t flags; /* misc flags */ 1087 union { 1088 struct cbq_opts cbq_opts; 1089 struct priq_opts priq_opts; 1090 struct hfsc_opts hfsc_opts; 1091 struct fairq_opts fairq_opts; 1092 } pq_u; 1093 1094 u_int32_t qid; /* return value */ 1095 }; 1096 1097 struct pf_tagname { 1098 TAILQ_ENTRY(pf_tagname) entries; 1099 char name[PF_TAG_NAME_SIZE]; 1100 u_int16_t tag; 1101 int ref; 1102 }; 1103 1104 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1105 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1106 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1107 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1108 1109 /* 1110 * ioctl parameter structures 1111 */ 1112 1113 struct pfioc_pooladdr { 1114 u_int32_t action; 1115 u_int32_t ticket; 1116 u_int32_t nr; 1117 u_int32_t r_num; 1118 u_int8_t r_action; 1119 u_int8_t r_last; 1120 u_int8_t af; 1121 char anchor[PF_ANCHOR_NAME_SIZE]; 1122 char ruleset[PF_RULESET_NAME_SIZE]; 1123 struct pf_pooladdr addr; 1124 }; 1125 1126 struct pfioc_rule { 1127 u_int32_t action; 1128 u_int32_t ticket; 1129 u_int32_t pool_ticket; 1130 u_int32_t nr; 1131 char anchor[PF_ANCHOR_NAME_SIZE]; 1132 char ruleset[PF_RULESET_NAME_SIZE]; 1133 struct pf_rule rule; 1134 }; 1135 1136 struct pfioc_natlook { 1137 struct pf_addr saddr; 1138 struct pf_addr daddr; 1139 struct pf_addr rsaddr; 1140 struct pf_addr rdaddr; 1141 u_int16_t sport; 1142 u_int16_t dport; 1143 u_int16_t rsport; 1144 u_int16_t rdport; 1145 sa_family_t af; 1146 u_int8_t proto; 1147 u_int8_t direction; 1148 }; 1149 1150 struct pfioc_state { 1151 u_int32_t nr; 1152 struct pf_state state; 1153 }; 1154 1155 struct pfioc_state_kill { 1156 /* XXX returns the number of states killed in psk_af */ 1157 sa_family_t psk_af; 1158 int psk_proto; 1159 struct pf_rule_addr psk_src; 1160 struct pf_rule_addr psk_dst; 1161 char psk_ifname[IFNAMSIZ]; 1162 }; 1163 1164 struct pfioc_states { 1165 int ps_len; 1166 union { 1167 caddr_t psu_buf; 1168 struct pf_state *psu_states; 1169 } ps_u; 1170 #define ps_buf ps_u.psu_buf 1171 #define ps_states ps_u.psu_states 1172 }; 1173 1174 struct pfioc_src_nodes { 1175 int psn_len; 1176 union { 1177 caddr_t psu_buf; 1178 struct pf_src_node *psu_src_nodes; 1179 } psn_u; 1180 #define psn_buf psn_u.psu_buf 1181 #define psn_src_nodes psn_u.psu_src_nodes 1182 }; 1183 1184 struct pfioc_if { 1185 char ifname[IFNAMSIZ]; 1186 }; 1187 1188 struct pfioc_tm { 1189 int timeout; 1190 int seconds; 1191 }; 1192 1193 struct pfioc_limit { 1194 int index; 1195 unsigned limit; 1196 }; 1197 1198 struct pfioc_altq { 1199 u_int32_t action; 1200 u_int32_t ticket; 1201 u_int32_t nr; 1202 struct pf_altq altq; 1203 }; 1204 1205 struct pfioc_qstats { 1206 u_int32_t ticket; 1207 u_int32_t nr; 1208 void *buf; 1209 int nbytes; 1210 u_int8_t scheduler; 1211 }; 1212 1213 struct pfioc_anchor { 1214 u_int32_t nr; 1215 char name[PF_ANCHOR_NAME_SIZE]; 1216 }; 1217 1218 struct pfioc_ruleset { 1219 u_int32_t nr; 1220 char anchor[PF_ANCHOR_NAME_SIZE]; 1221 char name[PF_RULESET_NAME_SIZE]; 1222 }; 1223 1224 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1225 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1226 struct pfioc_trans { 1227 int size; /* number of elements */ 1228 int esize; /* size of each element in bytes */ 1229 struct pfioc_trans_e { 1230 int rs_num; 1231 char anchor[PF_ANCHOR_NAME_SIZE]; 1232 char ruleset[PF_RULESET_NAME_SIZE]; 1233 u_int32_t ticket; 1234 } *array; 1235 }; 1236 1237 #define PFR_FLAG_ATOMIC 0x00000001 1238 #define PFR_FLAG_DUMMY 0x00000002 1239 #define PFR_FLAG_FEEDBACK 0x00000004 1240 #define PFR_FLAG_CLSTATS 0x00000008 1241 #define PFR_FLAG_ADDRSTOO 0x00000010 1242 #define PFR_FLAG_REPLACE 0x00000020 1243 #define PFR_FLAG_ALLRSETS 0x00000040 1244 #define PFR_FLAG_ALLMASK 0x0000007F 1245 #ifdef _KERNEL 1246 #define PFR_FLAG_USERIOCTL 0x10000000 1247 #endif 1248 1249 struct pfioc_table { 1250 struct pfr_table pfrio_table; 1251 void *pfrio_buffer; 1252 int pfrio_esize; 1253 int pfrio_size; 1254 int pfrio_size2; 1255 int pfrio_nadd; 1256 int pfrio_ndel; 1257 int pfrio_nchange; 1258 int pfrio_flags; 1259 u_int32_t pfrio_ticket; 1260 }; 1261 #define pfrio_exists pfrio_nadd 1262 #define pfrio_nzero pfrio_nadd 1263 #define pfrio_nmatch pfrio_nadd 1264 #define pfrio_naddr pfrio_size2 1265 #define pfrio_setflag pfrio_size2 1266 #define pfrio_clrflag pfrio_nadd 1267 1268 1269 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1270 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1271 #define PFI_FLAG_ALLMASK 0x0003 1272 1273 struct pfioc_iface { 1274 char pfiio_name[IFNAMSIZ]; 1275 void *pfiio_buffer; 1276 int pfiio_esize; 1277 int pfiio_size; 1278 int pfiio_nzero; 1279 int pfiio_flags; 1280 }; 1281 1282 1283 /* 1284 * ioctl operations 1285 */ 1286 1287 #define DIOCSTART _IO ('D', 1) 1288 #define DIOCSTOP _IO ('D', 2) 1289 #define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule) 1290 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1291 #define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule) 1292 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1293 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1294 /* XXX cut 8 - 17 */ 1295 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1296 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1297 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1298 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1299 #define DIOCCLRSTATUS _IO ('D', 22) 1300 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1301 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1302 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1303 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1304 /* XXX cut 26 - 28 */ 1305 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1306 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1307 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1308 #define DIOCCLRRULECTRS _IO ('D', 38) 1309 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1310 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1311 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1312 #define DIOCSTARTALTQ _IO ('D', 42) 1313 #define DIOCSTOPALTQ _IO ('D', 43) 1314 #define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t) 1315 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1316 #define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t) 1317 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1318 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1319 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1320 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1321 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1322 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1323 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1324 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1325 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1326 #define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor) 1327 #define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor) 1328 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1329 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1330 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1331 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1332 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1333 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1334 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1335 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1336 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1337 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1338 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1339 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1340 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1341 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1342 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1343 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1344 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1345 #define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table) 1346 #define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table) 1347 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1348 #define DIOCOSFPFLUSH _IO('D', 78) 1349 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1350 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1351 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1352 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1353 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1354 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1355 #define DIOCCLRSRCNODES _IO('D', 85) 1356 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1357 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1358 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1359 struct pf_ifspeed { 1360 char ifname[IFNAMSIZ]; 1361 u_int32_t baudrate; 1362 }; 1363 #define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed) 1364 1365 #ifdef _KERNEL 1366 RB_HEAD(pf_src_tree, pf_src_node); 1367 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1368 extern struct pf_src_tree tree_src_tracking; 1369 1370 RB_HEAD(pf_state_tree_id, pf_state); 1371 RB_PROTOTYPE(pf_state_tree_id, pf_state, 1372 entry_id, pf_state_compare_id); 1373 extern struct pf_state_tree_id tree_id; 1374 extern struct pf_state_queue state_updates; 1375 1376 extern struct pf_anchorqueue pf_anchors; 1377 extern struct pf_ruleset pf_main_ruleset; 1378 TAILQ_HEAD(pf_poolqueue, pf_pool); 1379 extern struct pf_poolqueue pf_pools[2]; 1380 TAILQ_HEAD(pf_altqqueue, pf_altq); 1381 extern struct pf_altqqueue pf_altqs[2]; 1382 extern struct pf_palist pf_pabuf; 1383 extern struct pfi_kif **pfi_index2kif; 1384 1385 extern u_int32_t ticket_altqs_active; 1386 extern u_int32_t ticket_altqs_inactive; 1387 extern int altqs_inactive_open; 1388 extern u_int32_t ticket_pabuf; 1389 extern struct pf_altqqueue *pf_altqs_active; 1390 extern struct pf_altqqueue *pf_altqs_inactive; 1391 extern struct pf_poolqueue *pf_pools_active; 1392 extern struct pf_poolqueue *pf_pools_inactive; 1393 extern int pf_tbladdr_setup(struct pf_ruleset *, 1394 struct pf_addr_wrap *); 1395 extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1396 extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1397 extern void pf_calc_skip_steps(struct pf_rulequeue *); 1398 extern void pf_update_anchor_rules(void); 1399 extern vm_zone_t pf_src_tree_pl, pf_rule_pl; 1400 extern vm_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1401 extern vm_zone_t pfr_ktable_pl, pfr_kentry_pl; 1402 extern vm_zone_t pf_cache_pl, pf_cent_pl; 1403 extern vm_zone_t pf_state_scrub_pl; 1404 extern vm_zone_t pfi_addr_pl; 1405 extern void pf_purge_timeout(void *); 1406 extern void pf_purge_expired_src_nodes(void); 1407 extern void pf_purge_expired_states(void); 1408 extern int pf_insert_state(struct pfi_kif *, 1409 struct pf_state *); 1410 extern int pf_insert_src_node(struct pf_src_node **, 1411 struct pf_rule *, struct pf_addr *, 1412 sa_family_t); 1413 void pf_src_tree_remove_state(struct pf_state *); 1414 u_int32_t pf_state_hash(struct pf_state *s); 1415 extern struct pf_state *pf_find_state_byid(struct pf_state *); 1416 extern struct pf_state *pf_find_state_all(struct pf_state *key, 1417 u_int8_t tree, int *more); 1418 extern struct pf_anchor *pf_find_anchor(const char *); 1419 extern struct pf_ruleset *pf_find_ruleset(char *, char *); 1420 extern struct pf_ruleset *pf_find_or_create_ruleset( 1421 char[PF_ANCHOR_NAME_SIZE], 1422 char[PF_RULESET_NAME_SIZE]); 1423 extern void pf_remove_if_empty_ruleset( 1424 struct pf_ruleset *); 1425 1426 extern struct ifnet *sync_ifp; 1427 extern struct pf_rule pf_default_rule; 1428 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1429 u_int8_t); 1430 void pf_rm_rule(struct pf_rulequeue *, 1431 struct pf_rule *); 1432 1433 #ifdef INET 1434 int pf_test(int, struct ifnet *, struct mbuf **); 1435 #endif /* INET */ 1436 1437 #ifdef INET6 1438 int pf_test6(int, struct ifnet *, struct mbuf **); 1439 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1440 struct pf_addr *, struct pf_addr *, u_int8_t); 1441 void pf_addr_inc(struct pf_addr *, sa_family_t); 1442 #endif /* INET6 */ 1443 1444 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1445 sa_family_t); 1446 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1447 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1448 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1449 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1450 struct pf_addr *, sa_family_t); 1451 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1452 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1453 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1454 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1455 1456 void pf_normalize_init(void); 1457 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *); 1458 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *); 1459 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1460 struct pf_pdesc *); 1461 void pf_normalize_tcp_cleanup(struct pf_state *); 1462 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1463 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1464 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1465 u_short *, struct tcphdr *, struct pf_state_peer *, 1466 struct pf_state_peer *, int *); 1467 u_int32_t 1468 pf_state_expires(const struct pf_state *); 1469 void pf_purge_expired_fragments(void); 1470 int pf_routable(struct pf_addr *addr, sa_family_t af); 1471 void pfr_initialize(void); 1472 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1473 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1474 u_int64_t, int, int, int); 1475 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1476 struct pf_addr **, struct pf_addr **, sa_family_t); 1477 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1478 struct pfr_ktable * 1479 pfr_attach_table(struct pf_ruleset *, char *); 1480 void pfr_detach_table(struct pfr_ktable *); 1481 int pfr_clr_tables(struct pfr_table *, int *, int); 1482 int pfr_add_tables(struct pfr_table *, int, int *, int); 1483 int pfr_del_tables(struct pfr_table *, int, int *, int); 1484 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1485 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1486 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1487 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1488 int pfr_clr_addrs(struct pfr_table *, int *, int); 1489 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1490 int); 1491 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1492 int); 1493 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1494 int *, int *, int *, int); 1495 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1496 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1497 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1498 int); 1499 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1500 int); 1501 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1502 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1503 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1504 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1505 int *, u_int32_t, int); 1506 1507 void pfi_initialize(void); 1508 void pfi_cleanup(void); 1509 void pfi_attach_clone(struct if_clone *); 1510 void pfi_attach_ifnet(struct ifnet *); 1511 void pfi_detach_ifnet(struct ifnet *); 1512 struct pfi_kif *pfi_lookup_create(const char *); 1513 struct pfi_kif *pfi_lookup_if(const char *); 1514 int pfi_maybe_destroy(struct pfi_kif *); 1515 struct pfi_kif *pfi_attach_rule(const char *); 1516 void pfi_detach_rule(struct pfi_kif *); 1517 void pfi_attach_state(struct pfi_kif *); 1518 void pfi_detach_state(struct pfi_kif *); 1519 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1520 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1521 void pfi_dynaddr_remove(struct pf_addr_wrap *); 1522 void pfi_fill_oldstatus(struct pf_status *); 1523 int pfi_clr_istats(const char *, int *, int); 1524 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1525 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1526 sa_family_t); 1527 1528 extern struct pfi_statehead pfi_statehead; 1529 1530 u_int16_t pf_tagname2tag(char *); 1531 void pf_tag2tagname(u_int16_t, char *); 1532 void pf_tag_unref(u_int16_t); 1533 void pf_tag_packet(struct mbuf *, int); 1534 u_int32_t pf_qname2qid(char *); 1535 void pf_qid2qname(u_int32_t, char *); 1536 void pf_qid_unref(u_int32_t); 1537 1538 extern struct pf_status pf_status; 1539 extern vm_zone_t pf_frent_pl, pf_frag_pl; 1540 1541 struct pf_pool_limit { 1542 void *pp; 1543 unsigned limit; 1544 }; 1545 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1546 1547 struct pf_frent { 1548 LIST_ENTRY(pf_frent) fr_next; 1549 struct ip *fr_ip; 1550 struct mbuf *fr_m; 1551 }; 1552 1553 struct pf_frcache { 1554 LIST_ENTRY(pf_frcache) fr_next; 1555 uint16_t fr_off; 1556 uint16_t fr_end; 1557 }; 1558 1559 struct pf_fragment { 1560 RB_ENTRY(pf_fragment) fr_entry; 1561 TAILQ_ENTRY(pf_fragment) frag_next; 1562 struct in_addr fr_src; 1563 struct in_addr fr_dst; 1564 u_int8_t fr_p; /* protocol of this fragment */ 1565 u_int8_t fr_flags; /* status flags */ 1566 u_int16_t fr_id; /* fragment id for reassemble */ 1567 u_int16_t fr_max; /* fragment data max */ 1568 u_int32_t fr_timeout; 1569 #define fr_queue fr_u.fru_queue 1570 #define fr_cache fr_u.fru_cache 1571 union { 1572 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */ 1573 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */ 1574 } fr_u; 1575 }; 1576 #endif /* _KERNEL */ 1577 1578 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1579 int pf_osfp_add(struct pf_osfp_ioctl *); 1580 #ifdef _KERNEL 1581 struct pf_osfp_enlist * 1582 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1583 const struct tcphdr *); 1584 #endif /* _KERNEL */ 1585 struct pf_osfp_enlist * 1586 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1587 void pf_osfp_flush(void); 1588 int pf_osfp_get(struct pf_osfp_ioctl *); 1589 int pf_osfp_initialize(void); 1590 void pf_osfp_cleanup(void); 1591 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1592 struct pf_os_fingerprint * 1593 pf_osfp_validate(void); 1594 1595 1596 #endif /* _NET_PFVAR_H_ */ 1597