1 /* 2 * Copyright (c) 2007-2010 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 /* $apfw: git commit b6bf13f8321283cd7ee82b1795e86506084b1b95 $ */ 30 /* $OpenBSD: pfvar.h,v 1.259 2007/12/02 12:08:04 pascoe Exp $ */ 31 32 /* 33 * Copyright (c) 2001 Daniel Hartmeier 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 40 * - Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * - Redistributions in binary form must reproduce the above 43 * copyright notice, this list of conditions and the following 44 * disclaimer in the documentation and/or other materials provided 45 * with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 50 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 51 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 53 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 54 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 57 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58 * POSSIBILITY OF SUCH DAMAGE. 59 * 60 */ 61 62 #ifndef _NET_PFVAR_H_ 63 #define _NET_PFVAR_H_ 64 65 #ifdef PRIVATE 66 /* 67 * XXX 68 * XXX Private interfaces. Do not include this file; use pfctl(8) instead. 69 * XXX 70 */ 71 #if PF || !defined(KERNEL) 72 73 #ifdef __cplusplus 74 extern "C" { 75 #endif 76 77 #include <sys/param.h> 78 #include <sys/types.h> 79 #include <sys/queue.h> 80 #include <libkern/tree.h> 81 82 #include <net/radix.h> 83 #include <netinet/in.h> 84 85 #ifdef KERNEL 86 #include <kern/kern_types.h> 87 #include <kern/zalloc.h> 88 #include <kern/lock.h> 89 90 #include <machine/endian.h> 91 #include <sys/systm.h> 92 #include <net/pf_mtag.h> 93 94 #if BYTE_ORDER == BIG_ENDIAN 95 #define htobe64(x) (x) 96 #else /* LITTLE ENDIAN */ 97 #define htobe64(x) __DARWIN_OSSwapInt64(x) 98 #endif /* LITTLE_ENDIAN */ 99 100 #define be64toh(x) htobe64(x) 101 102 __private_extern__ lck_rw_t *pf_perim_lock; 103 __private_extern__ lck_mtx_t *pf_lock; 104 105 struct pool { 106 struct zone *pool_zone; /* pointer to backend zone */ 107 const char *pool_name; /* name of pool */ 108 unsigned int pool_count; /* # of outstanding elements */ 109 unsigned int pool_hiwat; /* high watermark */ 110 unsigned int pool_limit; /* hard limit */ 111 unsigned int pool_fails; /* # of failed allocs due to limit */ 112 }; 113 114 #define PR_NOWAIT FALSE 115 #define PR_WAITOK TRUE 116 117 __private_extern__ void pool_init(struct pool *, size_t, unsigned int, 118 unsigned int, int, const char *, void *); 119 __private_extern__ void pool_destroy(struct pool *); 120 __private_extern__ void pool_sethiwat(struct pool *, int); 121 __private_extern__ void pool_sethardlimit(struct pool *, int, 122 const char *, int); 123 __private_extern__ void *pool_get(struct pool *, int); 124 __private_extern__ void pool_put(struct pool *, void *); 125 __private_extern__ u_int64_t pf_time_second(void); 126 __private_extern__ u_int64_t pf_calendar_time_second(void); 127 #endif /* KERNEL */ 128 129 union sockaddr_union { 130 struct sockaddr sa; 131 struct sockaddr_in sin; 132 struct sockaddr_in6 sin6; 133 }; 134 135 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 136 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 137 138 #define PF_MD5_DIGEST_LENGTH 16 139 #ifdef MD5_DIGEST_LENGTH 140 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH 141 #error 142 #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */ 143 #endif /* MD5_DIGEST_LENGTH */ 144 145 #ifdef KERNEL 146 struct ip; 147 struct ip6_hdr; 148 struct tcphdr; 149 #ifndef NO_APPLE_EXTENSIONS 150 struct pf_grev1_hdr; 151 struct pf_esp_hdr; 152 #endif /* !NO_APPLE_EXTENSIONS */ 153 #endif /* KERNEL */ 154 155 enum { PF_INOUT, PF_IN, PF_OUT }; 156 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 157 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 158 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 159 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 160 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 161 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 162 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 163 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 164 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 165 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 166 enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 167 168 /* 169 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 170 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 171 */ 172 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 173 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 174 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 175 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 176 #ifndef NO_APPLE_EXTENSIONS 177 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, PFTM_GREv1_ESTABLISHED, 178 PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, PFTM_ESP_ESTABLISHED, 179 #endif /* !NO_APPLE_EXTENSIONS */ 180 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 181 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 182 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 183 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED, 184 PFTM_UNTIL_PACKET }; 185 186 /* PFTM default values */ 187 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 188 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 189 #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */ 190 #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */ 191 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 192 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 193 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 194 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 195 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 196 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 197 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 198 #ifndef NO_APPLE_EXTENSIONS 199 #define PFTM_GREv1_FIRST_PACKET_VAL 120 200 #define PFTM_GREv1_INITIATING_VAL 30 201 #define PFTM_GREv1_ESTABLISHED_VAL 1800 202 #define PFTM_ESP_FIRST_PACKET_VAL 120 203 #define PFTM_ESP_INITIATING_VAL 30 204 #define PFTM_ESP_ESTABLISHED_VAL 900 205 #endif /* !NO_APPLE_EXTENSIONS */ 206 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 207 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 208 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 209 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 210 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 211 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 212 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 213 214 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 215 enum { PF_LIMIT_STATES, 216 #ifndef NO_APPLE_EXTENSIONS 217 PF_LIMIT_APP_STATES, 218 #endif /* !NO_APPLE_EXTENSIONS */ 219 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 220 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 221 #define PF_POOL_IDMASK 0x0f 222 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 223 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 224 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 225 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 226 PF_ADDR_RANGE }; 227 #define PF_POOL_TYPEMASK 0x0f 228 #define PF_POOL_STICKYADDR 0x20 229 #define PF_WSCALE_FLAG 0x80 230 #define PF_WSCALE_MASK 0x0f 231 232 #define PF_LOG 0x01 233 #define PF_LOG_ALL 0x02 234 #define PF_LOG_SOCKET_LOOKUP 0x04 235 236 struct pf_addr { 237 union { 238 struct in_addr v4; 239 struct in6_addr v6; 240 u_int8_t addr8[16]; 241 u_int16_t addr16[8]; 242 u_int32_t addr32[4]; 243 } pfa; /* 128-bit address */ 244 #define v4 pfa.v4 245 #define v6 pfa.v6 246 #define addr8 pfa.addr8 247 #define addr16 pfa.addr16 248 #define addr32 pfa.addr32 249 }; 250 251 #define PF_TABLE_NAME_SIZE 32 252 253 #define PFI_AFLAG_NETWORK 0x01 254 #define PFI_AFLAG_BROADCAST 0x02 255 #define PFI_AFLAG_PEER 0x04 256 #define PFI_AFLAG_MODEMASK 0x07 257 #define PFI_AFLAG_NOALIAS 0x08 258 259 #ifndef RTLABEL_LEN 260 #define RTLABEL_LEN 32 261 #endif 262 263 struct pf_addr_wrap { 264 union { 265 struct { 266 struct pf_addr addr; 267 struct pf_addr mask; 268 } a; 269 char ifname[IFNAMSIZ]; 270 char tblname[PF_TABLE_NAME_SIZE]; 271 char rtlabelname[RTLABEL_LEN]; 272 u_int32_t rtlabel; 273 } v; 274 union { 275 #ifdef KERNEL 276 struct pfi_dynaddr *dyn __attribute__((aligned(8))); 277 struct pfr_ktable *tbl __attribute__((aligned(8))); 278 #else /* !KERNEL */ 279 void *dyn __attribute__((aligned(8))); 280 void *tbl __attribute__((aligned(8))); 281 #endif /* !KERNEL */ 282 int dyncnt __attribute__((aligned(8))); 283 int tblcnt __attribute__((aligned(8))); 284 } p __attribute__((aligned(8))); 285 u_int8_t type; /* PF_ADDR_* */ 286 u_int8_t iflags; /* PFI_AFLAG_* */ 287 }; 288 289 #ifndef NO_APPLE_EXTENSIONS 290 struct pf_port_range { 291 u_int16_t port[2]; 292 u_int8_t op; 293 }; 294 295 union pf_rule_xport { 296 struct pf_port_range range; 297 u_int16_t call_id; 298 u_int32_t spi; 299 }; 300 #endif /* !NO_APPLE_EXTENSIONS */ 301 302 #ifdef KERNEL 303 struct pfi_dynaddr { 304 TAILQ_ENTRY(pfi_dynaddr) entry; 305 struct pf_addr pfid_addr4; 306 struct pf_addr pfid_mask4; 307 struct pf_addr pfid_addr6; 308 struct pf_addr pfid_mask6; 309 struct pfr_ktable *pfid_kt; 310 struct pfi_kif *pfid_kif; 311 void *pfid_hook_cookie; 312 int pfid_net; /* mask or 128 */ 313 int pfid_acnt4; /* address count IPv4 */ 314 int pfid_acnt6; /* address count IPv6 */ 315 sa_family_t pfid_af; /* rule af */ 316 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 317 }; 318 319 /* 320 * Address manipulation macros 321 */ 322 323 #if INET 324 #if !INET6 325 #define PF_INET_ONLY 326 #endif /* ! INET6 */ 327 #endif /* INET */ 328 329 #if INET6 330 #if !INET 331 #define PF_INET6_ONLY 332 #endif /* ! INET */ 333 #endif /* INET6 */ 334 335 #if INET 336 #if INET6 337 #define PF_INET_INET6 338 #endif /* INET6 */ 339 #endif /* INET */ 340 341 #else /* !KERNEL */ 342 343 #define PF_INET_INET6 344 345 #endif /* !KERNEL */ 346 347 /* Both IPv4 and IPv6 */ 348 #ifdef PF_INET_INET6 349 350 #define PF_AEQ(a, b, c) \ 351 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 352 ((a)->addr32[3] == (b)->addr32[3] && \ 353 (a)->addr32[2] == (b)->addr32[2] && \ 354 (a)->addr32[1] == (b)->addr32[1] && \ 355 (a)->addr32[0] == (b)->addr32[0])) \ 356 357 #define PF_ANEQ(a, b, c) \ 358 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 359 ((a)->addr32[3] != (b)->addr32[3] || \ 360 (a)->addr32[2] != (b)->addr32[2] || \ 361 (a)->addr32[1] != (b)->addr32[1] || \ 362 (a)->addr32[0] != (b)->addr32[0])) \ 363 364 #define PF_AZERO(a, c) \ 365 ((c == AF_INET && !(a)->addr32[0]) || \ 366 (!(a)->addr32[0] && !(a)->addr32[1] && \ 367 !(a)->addr32[2] && !(a)->addr32[3])) \ 368 369 #define PF_MATCHA(n, a, m, b, f) \ 370 pf_match_addr(n, a, m, b, f) 371 372 #define PF_ACPY(a, b, f) \ 373 pf_addrcpy(a, b, f) 374 375 #define PF_AINC(a, f) \ 376 pf_addr_inc(a, f) 377 378 #define PF_POOLMASK(a, b, c, d, f) \ 379 pf_poolmask(a, b, c, d, f) 380 381 #else 382 383 /* Just IPv6 */ 384 385 #ifdef PF_INET6_ONLY 386 387 #define PF_AEQ(a, b, c) \ 388 ((a)->addr32[3] == (b)->addr32[3] && \ 389 (a)->addr32[2] == (b)->addr32[2] && \ 390 (a)->addr32[1] == (b)->addr32[1] && \ 391 (a)->addr32[0] == (b)->addr32[0]) \ 392 393 #define PF_ANEQ(a, b, c) \ 394 ((a)->addr32[3] != (b)->addr32[3] || \ 395 (a)->addr32[2] != (b)->addr32[2] || \ 396 (a)->addr32[1] != (b)->addr32[1] || \ 397 (a)->addr32[0] != (b)->addr32[0]) \ 398 399 #define PF_AZERO(a, c) \ 400 (!(a)->addr32[0] && \ 401 !(a)->addr32[1] && \ 402 !(a)->addr32[2] && \ 403 !(a)->addr32[3]) \ 404 405 #define PF_MATCHA(n, a, m, b, f) \ 406 pf_match_addr(n, a, m, b, f) 407 408 #define PF_ACPY(a, b, f) \ 409 pf_addrcpy(a, b, f) 410 411 #define PF_AINC(a, f) \ 412 pf_addr_inc(a, f) 413 414 #define PF_POOLMASK(a, b, c, d, f) \ 415 pf_poolmask(a, b, c, d, f) 416 417 #else 418 419 /* Just IPv4 */ 420 #ifdef PF_INET_ONLY 421 422 #define PF_AEQ(a, b, c) \ 423 ((a)->addr32[0] == (b)->addr32[0]) 424 425 #define PF_ANEQ(a, b, c) \ 426 ((a)->addr32[0] != (b)->addr32[0]) 427 428 #define PF_AZERO(a, c) \ 429 (!(a)->addr32[0]) 430 431 #define PF_MATCHA(n, a, m, b, f) \ 432 pf_match_addr(n, a, m, b, f) 433 434 #define PF_ACPY(a, b, f) \ 435 (a)->v4.s_addr = (b)->v4.s_addr 436 437 #define PF_AINC(a, f) \ 438 do { \ 439 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 440 } while (0) 441 442 #define PF_POOLMASK(a, b, c, d, f) \ 443 do { \ 444 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 445 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ 446 } while (0) 447 448 #endif /* PF_INET_ONLY */ 449 #endif /* PF_INET6_ONLY */ 450 #endif /* PF_INET_INET6 */ 451 452 #ifdef KERNEL 453 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 454 ( \ 455 (((aw)->type == PF_ADDR_NOROUTE && \ 456 pf_routable((x), (af), NULL)) || \ 457 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 458 pf_routable((x), (af), (ifp))) || \ 459 ((aw)->type == PF_ADDR_RTLABEL && \ 460 !pf_rtlabel_match((x), (af), (aw))) || \ 461 ((aw)->type == PF_ADDR_TABLE && \ 462 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 463 ((aw)->type == PF_ADDR_DYNIFTL && \ 464 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 465 ((aw)->type == PF_ADDR_RANGE && \ 466 !pf_match_addr_range(&(aw)->v.a.addr, \ 467 &(aw)->v.a.mask, (x), (af))) || \ 468 ((aw)->type == PF_ADDR_ADDRMASK && \ 469 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 470 !PF_MATCHA(0, &(aw)->v.a.addr, \ 471 &(aw)->v.a.mask, (x), (af))))) != \ 472 (neg) \ 473 ) 474 #endif /* KERNEL */ 475 476 struct pf_rule_uid { 477 uid_t uid[2]; 478 u_int8_t op; 479 u_int8_t _pad[3]; 480 }; 481 482 struct pf_rule_gid { 483 uid_t gid[2]; 484 u_int8_t op; 485 u_int8_t _pad[3]; 486 }; 487 488 struct pf_rule_addr { 489 struct pf_addr_wrap addr; 490 #ifndef NO_APPLE_EXTENSIONS 491 union pf_rule_xport xport; 492 u_int8_t neg; 493 #else /* NO_APPLE_EXTENSIONS */ 494 u_int16_t port[2]; 495 u_int8_t neg; 496 u_int8_t port_op; 497 #endif /* NO_APPLE_EXTENSIONS */ 498 }; 499 500 struct pf_pooladdr { 501 struct pf_addr_wrap addr; 502 TAILQ_ENTRY(pf_pooladdr) entries; 503 #if !defined(__LP64__) 504 u_int32_t _pad[2]; 505 #endif /* !__LP64__ */ 506 char ifname[IFNAMSIZ]; 507 #ifdef KERNEL 508 struct pfi_kif *kif __attribute__((aligned(8))); 509 #else /* !KERNEL */ 510 void *kif __attribute__((aligned(8))); 511 #endif /* !KERNEL */ 512 }; 513 514 TAILQ_HEAD(pf_palist, pf_pooladdr); 515 516 struct pf_poolhashkey { 517 union { 518 u_int8_t key8[16]; 519 u_int16_t key16[8]; 520 u_int32_t key32[4]; 521 } pfk; /* 128-bit hash key */ 522 #define key8 pfk.key8 523 #define key16 pfk.key16 524 #define key32 pfk.key32 525 }; 526 527 struct pf_pool { 528 struct pf_palist list; 529 #if !defined(__LP64__) 530 u_int32_t _pad[2]; 531 #endif /* !__LP64__ */ 532 #ifdef KERNEL 533 struct pf_pooladdr *cur __attribute__((aligned(8))); 534 #else /* !KERNEL */ 535 void *cur __attribute__((aligned(8))); 536 #endif /* !KERNEL */ 537 struct pf_poolhashkey key __attribute__((aligned(8))); 538 struct pf_addr counter; 539 int tblidx; 540 u_int16_t proxy_port[2]; 541 u_int8_t port_op; 542 u_int8_t opts; 543 }; 544 545 546 /* A packed Operating System description for fingerprinting */ 547 typedef u_int32_t pf_osfp_t; 548 #define PF_OSFP_ANY ((pf_osfp_t)0) 549 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 550 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 551 552 struct pf_osfp_entry { 553 SLIST_ENTRY(pf_osfp_entry) fp_entry; 554 #if !defined(__LP64__) 555 u_int32_t _pad; 556 #endif /* !__LP64__ */ 557 pf_osfp_t fp_os; 558 int fp_enflags; 559 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 560 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 561 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 562 #define PF_OSFP_LEN 32 563 char fp_class_nm[PF_OSFP_LEN]; 564 char fp_version_nm[PF_OSFP_LEN]; 565 char fp_subtype_nm[PF_OSFP_LEN]; 566 }; 567 #define PF_OSFP_ENTRY_EQ(a, b) \ 568 ((a)->fp_os == (b)->fp_os && \ 569 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 570 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 571 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 572 573 /* handle pf_osfp_t packing */ 574 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 575 #define _FP_UNUSED_BITS 1 576 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 577 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 578 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 579 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 580 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 581 ((1 << _FP_CLASS_BITS) - 1); \ 582 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 583 ((1 << _FP_VERSION_BITS) - 1);\ 584 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 585 } while (0) 586 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 587 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 588 + _FP_SUBTYPE_BITS); \ 589 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 590 _FP_SUBTYPE_BITS; \ 591 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 592 } while (0) 593 594 /* the fingerprint of an OSes TCP SYN packet */ 595 typedef u_int64_t pf_tcpopts_t; 596 struct pf_os_fingerprint { 597 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 598 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 599 u_int16_t fp_wsize; /* TCP window size */ 600 u_int16_t fp_psize; /* ip->ip_len */ 601 u_int16_t fp_mss; /* TCP MSS */ 602 u_int16_t fp_flags; 603 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 604 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 605 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 606 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 607 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 608 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 609 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 610 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 611 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 612 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 613 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 614 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 615 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 616 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 617 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 618 u_int8_t fp_optcnt; /* TCP option count */ 619 u_int8_t fp_wscale; /* TCP window scaling */ 620 u_int8_t fp_ttl; /* IPv4 TTL */ 621 #define PF_OSFP_MAXTTL_OFFSET 40 622 /* TCP options packing */ 623 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 624 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 625 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 626 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 627 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 628 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 629 #define PF_OSFP_MAX_OPTS \ 630 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 631 / PF_OSFP_TCPOPT_BITS 632 633 SLIST_ENTRY(pf_os_fingerprint) fp_next; 634 }; 635 636 struct pf_osfp_ioctl { 637 struct pf_osfp_entry fp_os; 638 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 639 u_int16_t fp_wsize; /* TCP window size */ 640 u_int16_t fp_psize; /* ip->ip_len */ 641 u_int16_t fp_mss; /* TCP MSS */ 642 u_int16_t fp_flags; 643 u_int8_t fp_optcnt; /* TCP option count */ 644 u_int8_t fp_wscale; /* TCP window scaling */ 645 u_int8_t fp_ttl; /* IPv4 TTL */ 646 647 int fp_getnum; /* DIOCOSFPGET number */ 648 }; 649 650 651 union pf_rule_ptr { 652 struct pf_rule *ptr __attribute__((aligned(8))); 653 u_int32_t nr __attribute__((aligned(8))); 654 } __attribute__((aligned(8))); 655 656 #define PF_ANCHOR_NAME_SIZE 64 657 658 struct pf_rule { 659 struct pf_rule_addr src; 660 struct pf_rule_addr dst; 661 #define PF_SKIP_IFP 0 662 #define PF_SKIP_DIR 1 663 #define PF_SKIP_AF 2 664 #define PF_SKIP_PROTO 3 665 #define PF_SKIP_SRC_ADDR 4 666 #define PF_SKIP_SRC_PORT 5 667 #define PF_SKIP_DST_ADDR 6 668 #define PF_SKIP_DST_PORT 7 669 #define PF_SKIP_COUNT 8 670 union pf_rule_ptr skip[PF_SKIP_COUNT]; 671 #define PF_RULE_LABEL_SIZE 64 672 char label[PF_RULE_LABEL_SIZE]; 673 #define PF_QNAME_SIZE 64 674 char ifname[IFNAMSIZ]; 675 char qname[PF_QNAME_SIZE]; 676 char pqname[PF_QNAME_SIZE]; 677 #define PF_TAG_NAME_SIZE 64 678 char tagname[PF_TAG_NAME_SIZE]; 679 char match_tagname[PF_TAG_NAME_SIZE]; 680 681 char overload_tblname[PF_TABLE_NAME_SIZE]; 682 683 TAILQ_ENTRY(pf_rule) entries; 684 #if !defined(__LP64__) 685 u_int32_t _pad[2]; 686 #endif /* !__LP64__ */ 687 struct pf_pool rpool; 688 689 u_int64_t evaluations; 690 u_int64_t packets[2]; 691 u_int64_t bytes[2]; 692 693 #ifdef KERNEL 694 struct pfi_kif *kif __attribute__((aligned(8))); 695 #else /* !KERNEL */ 696 void *kif __attribute__((aligned(8))); 697 #endif /* !KERNEL */ 698 struct pf_anchor *anchor __attribute__((aligned(8))); 699 #ifdef KERNEL 700 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 701 #else /* !KERNEL */ 702 void *overload_tbl __attribute__((aligned(8))); 703 #endif /* !KERNEL */ 704 705 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 706 707 unsigned int rtableid; 708 u_int32_t timeout[PFTM_MAX]; 709 u_int32_t states; 710 u_int32_t max_states; 711 u_int32_t src_nodes; 712 u_int32_t max_src_nodes; 713 u_int32_t max_src_states; 714 u_int32_t max_src_conn; 715 struct { 716 u_int32_t limit; 717 u_int32_t seconds; 718 } max_src_conn_rate; 719 u_int32_t qid; 720 u_int32_t pqid; 721 u_int32_t rt_listid; 722 u_int32_t nr; 723 u_int32_t prob; 724 uid_t cuid; 725 pid_t cpid; 726 727 u_int16_t return_icmp; 728 u_int16_t return_icmp6; 729 u_int16_t max_mss; 730 u_int16_t tag; 731 u_int16_t match_tag; 732 733 struct pf_rule_uid uid; 734 struct pf_rule_gid gid; 735 736 u_int32_t rule_flag; 737 u_int8_t action; 738 u_int8_t direction; 739 u_int8_t log; 740 u_int8_t logif; 741 u_int8_t quick; 742 u_int8_t ifnot; 743 u_int8_t match_tag_not; 744 u_int8_t natpass; 745 746 #define PF_STATE_NORMAL 0x1 747 #define PF_STATE_MODULATE 0x2 748 #define PF_STATE_SYNPROXY 0x3 749 u_int8_t keep_state; 750 sa_family_t af; 751 u_int8_t proto; 752 u_int8_t type; 753 u_int8_t code; 754 u_int8_t flags; 755 u_int8_t flagset; 756 u_int8_t min_ttl; 757 u_int8_t allow_opts; 758 u_int8_t rt; 759 u_int8_t return_ttl; 760 u_int8_t tos; 761 u_int8_t anchor_relative; 762 u_int8_t anchor_wildcard; 763 764 #define PF_FLUSH 0x01 765 #define PF_FLUSH_GLOBAL 0x02 766 u_int8_t flush; 767 768 #ifndef NO_APPLE_EXTENSIONS 769 u_int8_t proto_variant; 770 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 771 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 772 #endif /* !NO_APPLE_EXTENSIONS */ 773 }; 774 775 /* rule flags */ 776 #define PFRULE_DROP 0x0000 777 #define PFRULE_RETURNRST 0x0001 778 #define PFRULE_FRAGMENT 0x0002 779 #define PFRULE_RETURNICMP 0x0004 780 #define PFRULE_RETURN 0x0008 781 #define PFRULE_NOSYNC 0x0010 782 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 783 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 784 785 /* scrub flags */ 786 #define PFRULE_NODF 0x0100 787 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 788 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 789 #define PFRULE_RANDOMID 0x0800 790 #define PFRULE_REASSEMBLE_TCP 0x1000 791 792 /* rule flags again */ 793 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 794 795 #define PFSTATE_HIWAT 10000 /* default state table size */ 796 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 797 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 798 799 #ifndef NO_APPLE_EXTENSIONS 800 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 801 802 enum pf_extmap { 803 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 804 PF_EXTMAP_AD, /* Address-dependent mapping */ 805 PF_EXTMAP_EI /* Endpoint-independent mapping */ 806 }; 807 808 enum pf_extfilter { 809 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 810 PF_EXTFILTER_AD, /* Address-dependent filtering */ 811 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 812 }; 813 #endif /* !NO_APPLE_EXTENSIONS */ 814 815 struct pf_threshold { 816 u_int32_t limit; 817 #define PF_THRESHOLD_MULT 1000 818 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 819 u_int32_t seconds; 820 u_int32_t count; 821 u_int32_t last; 822 }; 823 824 struct pf_src_node { 825 RB_ENTRY(pf_src_node) entry; 826 struct pf_addr addr; 827 struct pf_addr raddr; 828 union pf_rule_ptr rule; 829 #ifdef KERNEL 830 struct pfi_kif *kif; 831 #else /* !KERNEL */ 832 void *kif; 833 #endif /* !KERNEL */ 834 u_int64_t bytes[2]; 835 u_int64_t packets[2]; 836 u_int32_t states; 837 u_int32_t conn; 838 struct pf_threshold conn_rate; 839 u_int64_t creation; 840 u_int64_t expire; 841 sa_family_t af; 842 u_int8_t ruletype; 843 }; 844 845 #define PFSNODE_HIWAT 10000 /* default source node table size */ 846 847 #ifdef KERNEL 848 struct pf_state_scrub { 849 struct timeval pfss_last; /* time received last packet */ 850 u_int32_t pfss_tsecr; /* last echoed timestamp */ 851 u_int32_t pfss_tsval; /* largest timestamp */ 852 u_int32_t pfss_tsval0; /* original timestamp */ 853 u_int16_t pfss_flags; 854 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 855 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 856 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 857 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 858 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 859 u_int8_t pfss_ttl; /* stashed TTL */ 860 u_int8_t pad; 861 u_int32_t pfss_ts_mod; /* timestamp modulation */ 862 }; 863 #endif /* KERNEL */ 864 865 #ifndef NO_APPLE_EXTENSIONS 866 union pf_state_xport { 867 u_int16_t port; 868 u_int16_t call_id; 869 u_int32_t spi; 870 }; 871 872 struct pf_state_host { 873 struct pf_addr addr; 874 union pf_state_xport xport; 875 }; 876 #else /* NO_APPLE_EXTENSIONS */ 877 struct pf_state_host { 878 struct pf_addr addr; 879 u_int16_t port; 880 u_int16_t pad; 881 }; 882 #endif /* NO_APPLE_EXTENSIONS */ 883 884 #ifdef KERNEL 885 struct pf_state_peer { 886 u_int32_t seqlo; /* Max sequence number sent */ 887 u_int32_t seqhi; /* Max the other end ACKd + win */ 888 u_int32_t seqdiff; /* Sequence number modulator */ 889 u_int16_t max_win; /* largest window (pre scaling) */ 890 u_int8_t state; /* active state level */ 891 u_int8_t wscale; /* window scaling factor */ 892 u_int16_t mss; /* Maximum segment size option */ 893 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 894 struct pf_state_scrub *scrub; /* state is scrubbed */ 895 u_int8_t pad[3]; 896 }; 897 898 TAILQ_HEAD(pf_state_queue, pf_state); 899 #endif /* KERNEL */ 900 901 #ifndef NO_APPLE_EXTENSIONS 902 #ifdef KERNEL 903 struct pf_state; 904 struct pf_pdesc; 905 struct pf_app_state; 906 907 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 908 struct pfi_kif *); 909 910 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 911 912 struct pf_pptp_state { 913 struct pf_state *grev1_state; 914 }; 915 916 struct pf_grev1_state { 917 struct pf_state *pptp_state; 918 }; 919 920 struct pf_ike_state { 921 u_int64_t cookie; 922 }; 923 924 struct pf_app_state { 925 pf_app_handler handler; 926 pf_app_compare compare_lan_ext; 927 pf_app_compare compare_ext_gwy; 928 union { 929 struct pf_pptp_state pptp; 930 struct pf_grev1_state grev1; 931 struct pf_ike_state ike; 932 } u; 933 }; 934 #endif /* KERNEL */ 935 #define PF_GRE_PPTP_VARIANT 0x01 936 #endif /* !NO_APPLE_EXTENSIONS */ 937 938 #ifdef KERNEL 939 /* keep synced with struct pf_state, used in RB_FIND */ 940 struct pf_state_key_cmp { 941 struct pf_state_host lan; 942 struct pf_state_host gwy; 943 struct pf_state_host ext; 944 sa_family_t af; 945 u_int8_t proto; 946 u_int8_t direction; 947 #ifndef NO_APPLE_EXTENSIONS 948 u_int8_t proto_variant; 949 struct pf_app_state *app_state; 950 #else /* NO_APPLE_EXTENSIONS */ 951 u_int8_t pad; 952 #endif /* NO_APPLE_EXTENSIONS */ 953 }; 954 955 TAILQ_HEAD(pf_statelist, pf_state); 956 957 struct pf_state_key { 958 struct pf_state_host lan; 959 struct pf_state_host gwy; 960 struct pf_state_host ext; 961 sa_family_t af; 962 u_int8_t proto; 963 u_int8_t direction; 964 #ifndef NO_APPLE_EXTENSIONS 965 u_int8_t proto_variant; 966 struct pf_app_state *app_state; 967 #else /* NO_APPLE_EXTENSIONS */ 968 u_int8_t pad; 969 #endif /* NO_APPLE_EXTENSIONS */ 970 971 RB_ENTRY(pf_state_key) entry_lan_ext; 972 RB_ENTRY(pf_state_key) entry_ext_gwy; 973 struct pf_statelist states; 974 u_short refcnt; /* same size as if_index */ 975 }; 976 977 978 /* keep synced with struct pf_state, used in RB_FIND */ 979 struct pf_state_cmp { 980 u_int64_t id; 981 u_int32_t creatorid; 982 u_int32_t pad; 983 }; 984 #endif /* KERNEL */ 985 986 struct hook_desc; 987 TAILQ_HEAD(hook_desc_head, hook_desc); 988 989 #ifdef KERNEL 990 struct pf_state { 991 u_int64_t id; 992 u_int32_t creatorid; 993 u_int32_t pad; 994 995 TAILQ_ENTRY(pf_state) entry_list; 996 TAILQ_ENTRY(pf_state) next; 997 RB_ENTRY(pf_state) entry_id; 998 struct pf_state_peer src; 999 struct pf_state_peer dst; 1000 union pf_rule_ptr rule; 1001 union pf_rule_ptr anchor; 1002 union pf_rule_ptr nat_rule; 1003 struct pf_addr rt_addr; 1004 #ifndef NO_APPLE_EXTENSIONS 1005 struct hook_desc_head unlink_hooks; 1006 #endif /* !NO_APPLE_EXTENSIONS */ 1007 struct pf_state_key *state_key; 1008 struct pfi_kif *kif; 1009 struct pfi_kif *rt_kif; 1010 struct pf_src_node *src_node; 1011 struct pf_src_node *nat_src_node; 1012 u_int64_t packets[2]; 1013 u_int64_t bytes[2]; 1014 u_int64_t creation; 1015 u_int64_t expire; 1016 u_int64_t pfsync_time; 1017 u_int16_t tag; 1018 u_int8_t log; 1019 u_int8_t allow_opts; 1020 u_int8_t timeout; 1021 u_int8_t sync_flags; 1022 }; 1023 #endif /* KERNEL */ 1024 1025 #define PFSTATE_NOSYNC 0x01 1026 #define PFSTATE_FROMSYNC 0x02 1027 #define PFSTATE_STALE 0x04 1028 1029 #define __packed __attribute__((__packed__)) 1030 1031 /* 1032 * Unified state structures for pulling states out of the kernel 1033 * used by pfsync(4) and the pf(4) ioctl. 1034 */ 1035 struct pfsync_state_scrub { 1036 u_int16_t pfss_flags; 1037 u_int8_t pfss_ttl; /* stashed TTL */ 1038 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1039 u_int8_t scrub_flag; 1040 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1041 } __packed; 1042 1043 struct pfsync_state_host { 1044 struct pf_addr addr; 1045 #ifndef NO_APPLE_EXTENSIONS 1046 union pf_state_xport xport; 1047 u_int16_t pad[2]; 1048 #else /* NO_APPLE_EXTENSIONS */ 1049 u_int16_t port; 1050 u_int16_t pad[3]; 1051 #endif /* NO_APPLE_EXTENSIONS */ 1052 } __packed; 1053 1054 struct pfsync_state_peer { 1055 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1056 u_int32_t seqlo; /* Max sequence number sent */ 1057 u_int32_t seqhi; /* Max the other end ACKd + win */ 1058 u_int32_t seqdiff; /* Sequence number modulator */ 1059 u_int16_t max_win; /* largest window (pre scaling) */ 1060 u_int16_t mss; /* Maximum segment size option */ 1061 u_int8_t state; /* active state level */ 1062 u_int8_t wscale; /* window scaling factor */ 1063 u_int8_t pad[6]; 1064 } __packed; 1065 1066 struct pfsync_state { 1067 u_int32_t id[2]; 1068 char ifname[IFNAMSIZ]; 1069 struct pfsync_state_host lan; 1070 struct pfsync_state_host gwy; 1071 struct pfsync_state_host ext; 1072 struct pfsync_state_peer src; 1073 struct pfsync_state_peer dst; 1074 struct pf_addr rt_addr; 1075 #ifndef NO_APPLE_EXTENSIONS 1076 struct hook_desc_head unlink_hooks; 1077 #if !defined(__LP64__) 1078 u_int32_t _pad[2]; 1079 #endif /* !__LP64__ */ 1080 #endif /* !NO_APPLE_EXTENSIONS */ 1081 u_int32_t rule; 1082 u_int32_t anchor; 1083 u_int32_t nat_rule; 1084 u_int64_t creation; 1085 u_int64_t expire; 1086 u_int32_t packets[2][2]; 1087 u_int32_t bytes[2][2]; 1088 u_int32_t creatorid; 1089 #ifndef NO_APPLE_EXTENSIONS 1090 u_int16_t tag; 1091 #endif /* !NO_APPLE_EXTENSIONS */ 1092 sa_family_t af; 1093 u_int8_t proto; 1094 u_int8_t direction; 1095 u_int8_t log; 1096 u_int8_t allow_opts; 1097 u_int8_t timeout; 1098 u_int8_t sync_flags; 1099 u_int8_t updates; 1100 #ifndef NO_APPLE_EXTENSIONS 1101 u_int8_t proto_variant; 1102 #endif /* !NO_APPLE_EXTENSIONS */ 1103 } __packed; 1104 1105 #define PFSYNC_FLAG_COMPRESS 0x01 1106 #define PFSYNC_FLAG_STALE 0x02 1107 #define PFSYNC_FLAG_SRCNODE 0x04 1108 #define PFSYNC_FLAG_NATSRCNODE 0x08 1109 1110 #ifdef KERNEL 1111 /* for copies to/from userland via pf_ioctl() */ 1112 #define pf_state_peer_to_pfsync(s, d) do { \ 1113 (d)->seqlo = (s)->seqlo; \ 1114 (d)->seqhi = (s)->seqhi; \ 1115 (d)->seqdiff = (s)->seqdiff; \ 1116 (d)->max_win = (s)->max_win; \ 1117 (d)->mss = (s)->mss; \ 1118 (d)->state = (s)->state; \ 1119 (d)->wscale = (s)->wscale; \ 1120 if ((s)->scrub) { \ 1121 (d)->scrub.pfss_flags = \ 1122 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1123 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1124 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1125 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1126 } \ 1127 } while (0) 1128 1129 #define pf_state_peer_from_pfsync(s, d) do { \ 1130 (d)->seqlo = (s)->seqlo; \ 1131 (d)->seqhi = (s)->seqhi; \ 1132 (d)->seqdiff = (s)->seqdiff; \ 1133 (d)->max_win = (s)->max_win; \ 1134 (d)->mss = ntohs((s)->mss); \ 1135 (d)->state = (s)->state; \ 1136 (d)->wscale = (s)->wscale; \ 1137 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1138 (d)->scrub != NULL) { \ 1139 (d)->scrub->pfss_flags = \ 1140 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1141 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1142 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1143 } \ 1144 } while (0) 1145 #endif /* KERNEL */ 1146 1147 #define pf_state_counter_to_pfsync(s, d) do { \ 1148 d[0] = (s>>32)&0xffffffff; \ 1149 d[1] = s&0xffffffff; \ 1150 } while (0) 1151 1152 #define pf_state_counter_from_pfsync(s) \ 1153 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1154 1155 1156 1157 TAILQ_HEAD(pf_rulequeue, pf_rule); 1158 1159 struct pf_anchor; 1160 1161 struct pf_ruleset { 1162 struct { 1163 struct pf_rulequeue queues[2]; 1164 struct { 1165 struct pf_rulequeue *ptr; 1166 struct pf_rule **ptr_array; 1167 u_int32_t rcount; 1168 u_int32_t ticket; 1169 int open; 1170 } active, inactive; 1171 } rules[PF_RULESET_MAX]; 1172 struct pf_anchor *anchor; 1173 u_int32_t tticket; 1174 int tables; 1175 int topen; 1176 }; 1177 1178 RB_HEAD(pf_anchor_global, pf_anchor); 1179 RB_HEAD(pf_anchor_node, pf_anchor); 1180 struct pf_anchor { 1181 RB_ENTRY(pf_anchor) entry_global; 1182 RB_ENTRY(pf_anchor) entry_node; 1183 struct pf_anchor *parent; 1184 struct pf_anchor_node children; 1185 char name[PF_ANCHOR_NAME_SIZE]; 1186 char path[MAXPATHLEN]; 1187 struct pf_ruleset ruleset; 1188 int refcnt; /* anchor rules */ 1189 int match; 1190 }; 1191 #ifdef KERNEL 1192 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1193 pf_anchor_compare); 1194 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1195 pf_anchor_compare); 1196 #else /* !KERNEL */ 1197 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1198 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1199 #endif /* !KERNEL */ 1200 1201 #define PF_RESERVED_ANCHOR "_pf" 1202 1203 #define PFR_TFLAG_PERSIST 0x00000001 1204 #define PFR_TFLAG_CONST 0x00000002 1205 #define PFR_TFLAG_ACTIVE 0x00000004 1206 #define PFR_TFLAG_INACTIVE 0x00000008 1207 #define PFR_TFLAG_REFERENCED 0x00000010 1208 #define PFR_TFLAG_REFDANCHOR 0x00000020 1209 #define PFR_TFLAG_USRMASK 0x00000003 1210 #define PFR_TFLAG_SETMASK 0x0000003C 1211 #define PFR_TFLAG_ALLMASK 0x0000003F 1212 1213 struct pfr_table { 1214 char pfrt_anchor[MAXPATHLEN]; 1215 char pfrt_name[PF_TABLE_NAME_SIZE]; 1216 u_int32_t pfrt_flags; 1217 u_int8_t pfrt_fback; 1218 }; 1219 1220 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1221 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1222 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1223 1224 struct pfr_addr { 1225 union { 1226 struct in_addr _pfra_ip4addr; 1227 struct in6_addr _pfra_ip6addr; 1228 } pfra_u; 1229 u_int8_t pfra_af; 1230 u_int8_t pfra_net; 1231 u_int8_t pfra_not; 1232 u_int8_t pfra_fback; 1233 }; 1234 #define pfra_ip4addr pfra_u._pfra_ip4addr 1235 #define pfra_ip6addr pfra_u._pfra_ip6addr 1236 1237 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1238 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1239 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1240 1241 struct pfr_astats { 1242 struct pfr_addr pfras_a; 1243 #if !defined(__LP64__) 1244 u_int32_t _pad; 1245 #endif /* !__LP64__ */ 1246 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1247 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1248 u_int64_t pfras_tzero; 1249 }; 1250 1251 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1252 1253 struct pfr_tstats { 1254 struct pfr_table pfrts_t; 1255 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1256 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1257 u_int64_t pfrts_match; 1258 u_int64_t pfrts_nomatch; 1259 u_int64_t pfrts_tzero; 1260 int pfrts_cnt; 1261 int pfrts_refcnt[PFR_REFCNT_MAX]; 1262 #if !defined(__LP64__) 1263 u_int32_t _pad; 1264 #endif /* !__LP64__ */ 1265 }; 1266 #define pfrts_name pfrts_t.pfrt_name 1267 #define pfrts_flags pfrts_t.pfrt_flags 1268 1269 #ifdef KERNEL 1270 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1271 struct pfr_kentry { 1272 struct radix_node pfrke_node[2]; 1273 union sockaddr_union pfrke_sa; 1274 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1275 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1276 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1277 u_int64_t pfrke_tzero; 1278 u_int8_t pfrke_af; 1279 u_int8_t pfrke_net; 1280 u_int8_t pfrke_not; 1281 u_int8_t pfrke_mark; 1282 u_int8_t pfrke_intrpool; 1283 }; 1284 1285 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1286 RB_HEAD(pfr_ktablehead, pfr_ktable); 1287 struct pfr_ktable { 1288 struct pfr_tstats pfrkt_ts; 1289 RB_ENTRY(pfr_ktable) pfrkt_tree; 1290 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1291 struct radix_node_head *pfrkt_ip4; 1292 struct radix_node_head *pfrkt_ip6; 1293 struct pfr_ktable *pfrkt_shadow; 1294 struct pfr_ktable *pfrkt_root; 1295 struct pf_ruleset *pfrkt_rs; 1296 u_int64_t pfrkt_larg; 1297 u_int32_t pfrkt_nflags; 1298 }; 1299 #define pfrkt_t pfrkt_ts.pfrts_t 1300 #define pfrkt_name pfrkt_t.pfrt_name 1301 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1302 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1303 #define pfrkt_flags pfrkt_t.pfrt_flags 1304 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1305 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1306 #define pfrkt_packets pfrkt_ts.pfrts_packets 1307 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1308 #define pfrkt_match pfrkt_ts.pfrts_match 1309 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1310 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1311 1312 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1313 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1314 entry_lan_ext, pf_state_compare_lan_ext); 1315 1316 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1317 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1318 entry_ext_gwy, pf_state_compare_ext_gwy); 1319 1320 RB_HEAD(pfi_ifhead, pfi_kif); 1321 1322 /* state tables */ 1323 __private_extern__ struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1324 __private_extern__ struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 1325 1326 /* keep synced with pfi_kif, used in RB_FIND */ 1327 struct pfi_kif_cmp { 1328 char pfik_name[IFNAMSIZ]; 1329 }; 1330 1331 struct pfi_kif { 1332 char pfik_name[IFNAMSIZ]; 1333 RB_ENTRY(pfi_kif) pfik_tree; 1334 u_int64_t pfik_packets[2][2][2]; 1335 u_int64_t pfik_bytes[2][2][2]; 1336 u_int64_t pfik_tzero; 1337 int pfik_flags; 1338 void *pfik_ah_cookie; 1339 struct ifnet *pfik_ifp; 1340 int pfik_states; 1341 int pfik_rules; 1342 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1343 }; 1344 1345 enum pfi_kif_refs { 1346 PFI_KIF_REF_NONE, 1347 PFI_KIF_REF_STATE, 1348 PFI_KIF_REF_RULE 1349 }; 1350 1351 struct pfi_uif { 1352 #else /* !KERNEL */ 1353 struct pfi_kif { 1354 #endif /* !KERNEL */ 1355 char pfik_name[IFNAMSIZ]; 1356 u_int64_t pfik_packets[2][2][2]; 1357 u_int64_t pfik_bytes[2][2][2]; 1358 u_int64_t pfik_tzero; 1359 int pfik_flags; 1360 int pfik_states; 1361 int pfik_rules; 1362 #if !defined(__LP64__) 1363 u_int32_t _pad; 1364 #endif /* !__LP64__ */ 1365 }; 1366 1367 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1368 1369 #ifdef KERNEL 1370 struct pf_pdesc { 1371 struct { 1372 int done; 1373 uid_t uid; 1374 gid_t gid; 1375 pid_t pid; 1376 } lookup; 1377 u_int64_t tot_len; /* Make Mickey money */ 1378 union { 1379 struct tcphdr *tcp; 1380 struct udphdr *udp; 1381 struct icmp *icmp; 1382 #if INET6 1383 struct icmp6_hdr *icmp6; 1384 #endif /* INET6 */ 1385 #ifndef NO_APPLE_EXTENSIONS 1386 struct pf_grev1_hdr *grev1; 1387 struct pf_esp_hdr *esp; 1388 #endif /* !NO_APPLE_EXTENSIONS */ 1389 void *any; 1390 } hdr; 1391 struct pf_addr baddr; /* address before translation */ 1392 struct pf_addr naddr; /* address after translation */ 1393 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1394 struct pf_addr *src; 1395 struct pf_addr *dst; 1396 struct ether_header 1397 *eh; 1398 #ifndef NO_APPLE_EXTENSIONS 1399 struct mbuf *mp; 1400 int lmw; /* lazy writable offset */ 1401 #endif /* !NO_APPLE_EXTENSIONS */ 1402 struct pf_mtag *pf_mtag; 1403 u_int16_t *ip_sum; 1404 u_int32_t p_len; /* total length of payload */ 1405 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1406 /* state code. Easier than tags */ 1407 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1408 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1409 sa_family_t af; 1410 u_int8_t proto; 1411 u_int8_t tos; 1412 #ifndef NO_APPLE_EXTENSIONS 1413 u_int8_t proto_variant; 1414 #endif /* !NO_APPLE_EXTENSIONS */ 1415 }; 1416 #endif /* KERNEL */ 1417 1418 /* flags for RDR options */ 1419 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1420 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1421 1422 /* Reasons code for passing/dropping a packet */ 1423 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1424 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1425 #define PFRES_FRAG 2 /* Dropping following fragment */ 1426 #define PFRES_SHORT 3 /* Dropping short packet */ 1427 #define PFRES_NORM 4 /* Dropping by normalizer */ 1428 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1429 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1430 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1431 #define PFRES_IPOPTIONS 8 /* IP option */ 1432 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1433 #define PFRES_BADSTATE 10 /* State mismatch */ 1434 #define PFRES_STATEINS 11 /* State insertion failure */ 1435 #define PFRES_MAXSTATES 12 /* State limit */ 1436 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1437 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1438 #define PFRES_MAX 15 /* total+1 */ 1439 1440 #define PFRES_NAMES { \ 1441 "match", \ 1442 "bad-offset", \ 1443 "fragment", \ 1444 "short", \ 1445 "normalize", \ 1446 "memory", \ 1447 "bad-timestamp", \ 1448 "congestion", \ 1449 "ip-option", \ 1450 "proto-cksum", \ 1451 "state-mismatch", \ 1452 "state-insert", \ 1453 "state-limit", \ 1454 "src-limit", \ 1455 "synproxy", \ 1456 NULL \ 1457 } 1458 1459 /* Counters for other things we want to keep track of */ 1460 #define LCNT_STATES 0 /* states */ 1461 #define LCNT_SRCSTATES 1 /* max-src-states */ 1462 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1463 #define LCNT_SRCCONN 3 /* max-src-conn */ 1464 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1465 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1466 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1467 #define LCNT_MAX 7 /* total+1 */ 1468 1469 #define LCNT_NAMES { \ 1470 "max states per rule", \ 1471 "max-src-states", \ 1472 "max-src-nodes", \ 1473 "max-src-conn", \ 1474 "max-src-conn-rate", \ 1475 "overload table insertion", \ 1476 "overload flush states", \ 1477 NULL \ 1478 } 1479 1480 /* UDP state enumeration */ 1481 #define PFUDPS_NO_TRAFFIC 0 1482 #define PFUDPS_SINGLE 1 1483 #define PFUDPS_MULTIPLE 2 1484 1485 #define PFUDPS_NSTATES 3 /* number of state levels */ 1486 1487 #define PFUDPS_NAMES { \ 1488 "NO_TRAFFIC", \ 1489 "SINGLE", \ 1490 "MULTIPLE", \ 1491 NULL \ 1492 } 1493 1494 #ifndef NO_APPLE_EXTENSIONS 1495 /* GREv1 protocol state enumeration */ 1496 #define PFGRE1S_NO_TRAFFIC 0 1497 #define PFGRE1S_INITIATING 1 1498 #define PFGRE1S_ESTABLISHED 2 1499 1500 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1501 1502 #define PFGRE1S_NAMES { \ 1503 "NO_TRAFFIC", \ 1504 "INITIATING", \ 1505 "ESTABLISHED", \ 1506 NULL \ 1507 } 1508 1509 #define PFESPS_NO_TRAFFIC 0 1510 #define PFESPS_INITIATING 1 1511 #define PFESPS_ESTABLISHED 2 1512 1513 #define PFESPS_NSTATES 3 /* number of state levels */ 1514 1515 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1516 #endif /* !NO_APPLE_EXTENSIONS */ 1517 1518 /* Other protocol state enumeration */ 1519 #define PFOTHERS_NO_TRAFFIC 0 1520 #define PFOTHERS_SINGLE 1 1521 #define PFOTHERS_MULTIPLE 2 1522 1523 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1524 1525 #define PFOTHERS_NAMES { \ 1526 "NO_TRAFFIC", \ 1527 "SINGLE", \ 1528 "MULTIPLE", \ 1529 NULL \ 1530 } 1531 1532 #define FCNT_STATE_SEARCH 0 1533 #define FCNT_STATE_INSERT 1 1534 #define FCNT_STATE_REMOVALS 2 1535 #define FCNT_MAX 3 1536 1537 #define SCNT_SRC_NODE_SEARCH 0 1538 #define SCNT_SRC_NODE_INSERT 1 1539 #define SCNT_SRC_NODE_REMOVALS 2 1540 #define SCNT_MAX 3 1541 1542 #ifdef KERNEL 1543 #define ACTION_SET(a, x) \ 1544 do { \ 1545 if ((a) != NULL) \ 1546 *(a) = (x); \ 1547 } while (0) 1548 1549 #define REASON_SET(a, x) \ 1550 do { \ 1551 if ((a) != NULL) \ 1552 *(a) = (x); \ 1553 if (x < PFRES_MAX) \ 1554 pf_status.counters[x]++; \ 1555 } while (0) 1556 #endif /* KERNEL */ 1557 1558 struct pf_status { 1559 u_int64_t counters[PFRES_MAX]; 1560 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1561 u_int64_t fcounters[FCNT_MAX]; 1562 u_int64_t scounters[SCNT_MAX]; 1563 u_int64_t pcounters[2][2][3]; 1564 u_int64_t bcounters[2][2]; 1565 u_int64_t stateid; 1566 u_int32_t running; 1567 u_int32_t states; 1568 u_int32_t src_nodes; 1569 u_int64_t since __attribute__((aligned(8))); 1570 u_int32_t debug; 1571 u_int32_t hostid; 1572 char ifname[IFNAMSIZ]; 1573 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1574 }; 1575 1576 struct cbq_opts { 1577 u_int minburst; 1578 u_int maxburst; 1579 u_int pktsize; 1580 u_int maxpktsize; 1581 u_int ns_per_byte; 1582 u_int maxidle; 1583 int minidle; 1584 u_int offtime; 1585 int flags; 1586 }; 1587 1588 struct priq_opts { 1589 int flags; 1590 }; 1591 1592 struct hfsc_opts { 1593 /* real-time service curve */ 1594 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1595 u_int rtsc_d; /* the x-projection of m1 in msec */ 1596 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1597 /* link-sharing service curve */ 1598 u_int lssc_m1; 1599 u_int lssc_d; 1600 u_int lssc_m2; 1601 /* upper-limit service curve */ 1602 u_int ulsc_m1; 1603 u_int ulsc_d; 1604 u_int ulsc_m2; 1605 int flags; 1606 }; 1607 1608 struct pf_altq { 1609 char ifname[IFNAMSIZ]; 1610 1611 void *altq_disc; /* discipline-specific state */ 1612 #if !defined(__LP64__) 1613 u_int32_t _pad; 1614 #endif /* !__LP64__ */ 1615 TAILQ_ENTRY(pf_altq) entries; 1616 #if !defined(__LP64__) 1617 u_int32_t __pad[2]; 1618 #endif /* !__LP64__ */ 1619 1620 /* scheduler spec */ 1621 u_int8_t scheduler; /* scheduler type */ 1622 u_int16_t tbrsize; /* tokenbucket regulator size */ 1623 u_int32_t ifbandwidth; /* interface bandwidth */ 1624 1625 /* queue spec */ 1626 char qname[PF_QNAME_SIZE]; /* queue name */ 1627 char parent[PF_QNAME_SIZE]; /* parent name */ 1628 u_int32_t parent_qid; /* parent queue id */ 1629 u_int32_t bandwidth; /* queue bandwidth */ 1630 u_int8_t priority; /* priority */ 1631 u_int16_t qlimit; /* queue size limit */ 1632 u_int16_t flags; /* misc flags */ 1633 union { 1634 struct cbq_opts cbq_opts; 1635 struct priq_opts priq_opts; 1636 struct hfsc_opts hfsc_opts; 1637 } pq_u; 1638 1639 u_int32_t qid; /* return value */ 1640 }; 1641 1642 struct pf_tagname { 1643 TAILQ_ENTRY(pf_tagname) entries; 1644 char name[PF_TAG_NAME_SIZE]; 1645 u_int16_t tag; 1646 int ref; 1647 }; 1648 1649 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1650 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1651 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1652 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1653 1654 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1655 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1656 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1657 1658 /* 1659 * ioctl parameter structures 1660 */ 1661 1662 struct pfioc_pooladdr { 1663 u_int32_t action; 1664 u_int32_t ticket; 1665 u_int32_t nr; 1666 u_int32_t r_num; 1667 u_int8_t r_action; 1668 u_int8_t r_last; 1669 u_int8_t af; 1670 char anchor[MAXPATHLEN]; 1671 struct pf_pooladdr addr; 1672 }; 1673 1674 struct pfioc_rule { 1675 u_int32_t action; 1676 u_int32_t ticket; 1677 u_int32_t pool_ticket; 1678 u_int32_t nr; 1679 char anchor[MAXPATHLEN]; 1680 char anchor_call[MAXPATHLEN]; 1681 struct pf_rule rule; 1682 }; 1683 1684 struct pfioc_natlook { 1685 struct pf_addr saddr; 1686 struct pf_addr daddr; 1687 struct pf_addr rsaddr; 1688 struct pf_addr rdaddr; 1689 #ifndef NO_APPLE_EXTENSIONS 1690 union pf_state_xport sxport; 1691 union pf_state_xport dxport; 1692 union pf_state_xport rsxport; 1693 union pf_state_xport rdxport; 1694 sa_family_t af; 1695 u_int8_t proto; 1696 u_int8_t proto_variant; 1697 u_int8_t direction; 1698 #else /* NO_APPLE_EXTENSIONS */ 1699 u_int16_t sport; 1700 u_int16_t dport; 1701 u_int16_t rsport; 1702 u_int16_t rdport; 1703 sa_family_t af; 1704 u_int8_t proto; 1705 u_int8_t direction; 1706 #endif /* NO_APPLE_EXTENSIONS */ 1707 }; 1708 1709 struct pfioc_state { 1710 struct pfsync_state state; 1711 }; 1712 1713 struct pfioc_src_node_kill { 1714 /* XXX returns the number of src nodes killed in psnk_af */ 1715 sa_family_t psnk_af; 1716 struct pf_rule_addr psnk_src; 1717 struct pf_rule_addr psnk_dst; 1718 }; 1719 1720 #ifndef NO_APPLE_EXTENSIONS 1721 struct pfioc_state_addr_kill { 1722 struct pf_addr_wrap addr; 1723 u_int8_t reserved_[3]; 1724 u_int8_t neg; 1725 union pf_rule_xport xport; 1726 }; 1727 #endif /* !NO_APPLE_EXTENSIONS */ 1728 1729 struct pfioc_state_kill { 1730 /* XXX returns the number of states killed in psk_af */ 1731 sa_family_t psk_af; 1732 #ifndef NO_APPLE_EXTENSIONS 1733 u_int8_t psk_proto; 1734 u_int8_t psk_proto_variant; 1735 u_int8_t _pad; 1736 struct pfioc_state_addr_kill psk_src; 1737 struct pfioc_state_addr_kill psk_dst; 1738 #else /* NO_APPLE_EXTENSIONS */ 1739 int psk_proto; 1740 struct pf_rule_addr psk_src; 1741 struct pf_rule_addr psk_dst; 1742 #endif /* NO_APPLE_EXTENSIONS */ 1743 char psk_ifname[IFNAMSIZ]; 1744 }; 1745 1746 struct pfioc_states { 1747 int ps_len; 1748 union { 1749 caddr_t psu_buf; 1750 struct pfsync_state *psu_states; 1751 } ps_u __attribute__((aligned(8))); 1752 #define ps_buf ps_u.psu_buf 1753 #define ps_states ps_u.psu_states 1754 }; 1755 1756 #ifdef KERNEL 1757 struct pfioc_states_32 { 1758 int ps_len; 1759 union { 1760 user32_addr_t psu_buf; 1761 user32_addr_t psu_states; 1762 } ps_u __attribute__((aligned(8))); 1763 }; 1764 1765 struct pfioc_states_64 { 1766 int ps_len; 1767 union { 1768 user64_addr_t psu_buf; 1769 user64_addr_t psu_states; 1770 } ps_u __attribute__((aligned(8))); 1771 }; 1772 #endif /* KERNEL */ 1773 1774 #define PFTOK_PROCNAME_LEN 64 1775 #pragma pack(1) 1776 struct pfioc_token { 1777 u_int64_t token_value; 1778 u_int64_t timestamp; 1779 pid_t pid; 1780 char proc_name[PFTOK_PROCNAME_LEN]; 1781 }; 1782 #pragma pack() 1783 1784 struct pfioc_kernel_token { 1785 SLIST_ENTRY(pfioc_kernel_token) next; 1786 struct pfioc_token token; 1787 }; 1788 1789 struct pfioc_remove_token { 1790 u_int64_t token_value; 1791 u_int64_t refcount; 1792 }; 1793 1794 struct pfioc_tokens { 1795 int size; 1796 union { 1797 caddr_t pgtu_buf; 1798 struct pfioc_token *pgtu_tokens; 1799 } pgt_u __attribute__((aligned(8))); 1800 #define pgt_buf pgt_u.pgtu_buf 1801 #define pgt_tokens pgt_u.pgtu_tokens 1802 }; 1803 1804 #ifdef KERNEL 1805 struct pfioc_tokens_32 { 1806 int size; 1807 union { 1808 user32_addr_t pgtu_buf; 1809 user32_addr_t pgtu_tokens; 1810 } pgt_u __attribute__((aligned(8))); 1811 }; 1812 1813 struct pfioc_tokens_64 { 1814 int size; 1815 union { 1816 user64_addr_t pgtu_buf; 1817 user64_addr_t pgtu_tokens; 1818 } pgt_u __attribute__((aligned(8))); 1819 }; 1820 #endif /* KERNEL */ 1821 1822 1823 struct pfioc_src_nodes { 1824 int psn_len; 1825 union { 1826 caddr_t psu_buf; 1827 struct pf_src_node *psu_src_nodes; 1828 } psn_u __attribute__((aligned(8))); 1829 #define psn_buf psn_u.psu_buf 1830 #define psn_src_nodes psn_u.psu_src_nodes 1831 }; 1832 1833 #ifdef KERNEL 1834 struct pfioc_src_nodes_32 { 1835 int psn_len; 1836 union { 1837 user32_addr_t psu_buf; 1838 user32_addr_t psu_src_nodes; 1839 } psn_u __attribute__((aligned(8))); 1840 }; 1841 1842 struct pfioc_src_nodes_64 { 1843 int psn_len; 1844 union { 1845 user64_addr_t psu_buf; 1846 user64_addr_t psu_src_nodes; 1847 } psn_u __attribute__((aligned(8))); 1848 }; 1849 #endif /* KERNEL */ 1850 1851 struct pfioc_if { 1852 char ifname[IFNAMSIZ]; 1853 }; 1854 1855 struct pfioc_tm { 1856 int timeout; 1857 int seconds; 1858 }; 1859 1860 struct pfioc_limit { 1861 int index; 1862 unsigned limit; 1863 }; 1864 1865 struct pfioc_altq { 1866 u_int32_t action; 1867 u_int32_t ticket; 1868 u_int32_t nr; 1869 struct pf_altq altq __attribute__((aligned(8))); 1870 }; 1871 1872 struct pfioc_qstats { 1873 u_int32_t ticket; 1874 u_int32_t nr; 1875 void *buf __attribute__((aligned(8))); 1876 int nbytes __attribute__((aligned(8))); 1877 u_int8_t scheduler; 1878 }; 1879 1880 struct pfioc_ruleset { 1881 u_int32_t nr; 1882 char path[MAXPATHLEN]; 1883 char name[PF_ANCHOR_NAME_SIZE]; 1884 }; 1885 1886 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1887 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1888 struct pfioc_trans { 1889 int size; /* number of elements */ 1890 int esize; /* size of each element in bytes */ 1891 struct pfioc_trans_e { 1892 int rs_num; 1893 char anchor[MAXPATHLEN]; 1894 u_int32_t ticket; 1895 } *array __attribute__((aligned(8))); 1896 }; 1897 1898 #ifdef KERNEL 1899 struct pfioc_trans_32 { 1900 int size; /* number of elements */ 1901 int esize; /* size of each element in bytes */ 1902 user32_addr_t array __attribute__((aligned(8))); 1903 }; 1904 1905 struct pfioc_trans_64 { 1906 int size; /* number of elements */ 1907 int esize; /* size of each element in bytes */ 1908 user64_addr_t array __attribute__((aligned(8))); 1909 }; 1910 #endif /* KERNEL */ 1911 1912 1913 #define PFR_FLAG_ATOMIC 0x00000001 1914 #define PFR_FLAG_DUMMY 0x00000002 1915 #define PFR_FLAG_FEEDBACK 0x00000004 1916 #define PFR_FLAG_CLSTATS 0x00000008 1917 #define PFR_FLAG_ADDRSTOO 0x00000010 1918 #define PFR_FLAG_REPLACE 0x00000020 1919 #define PFR_FLAG_ALLRSETS 0x00000040 1920 #define PFR_FLAG_ALLMASK 0x0000007F 1921 #ifdef KERNEL 1922 #define PFR_FLAG_USERIOCTL 0x10000000 1923 #endif /* KERNEL */ 1924 1925 struct pfioc_table { 1926 struct pfr_table pfrio_table; 1927 void *pfrio_buffer __attribute__((aligned(8))); 1928 int pfrio_esize __attribute__((aligned(8))); 1929 int pfrio_size; 1930 int pfrio_size2; 1931 int pfrio_nadd; 1932 int pfrio_ndel; 1933 int pfrio_nchange; 1934 int pfrio_flags; 1935 u_int32_t pfrio_ticket; 1936 }; 1937 #define pfrio_exists pfrio_nadd 1938 #define pfrio_nzero pfrio_nadd 1939 #define pfrio_nmatch pfrio_nadd 1940 #define pfrio_naddr pfrio_size2 1941 #define pfrio_setflag pfrio_size2 1942 #define pfrio_clrflag pfrio_nadd 1943 1944 #ifdef KERNEL 1945 struct pfioc_table_32 { 1946 struct pfr_table pfrio_table; 1947 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 1948 int pfrio_esize __attribute__((aligned(8))); 1949 int pfrio_size; 1950 int pfrio_size2; 1951 int pfrio_nadd; 1952 int pfrio_ndel; 1953 int pfrio_nchange; 1954 int pfrio_flags; 1955 u_int32_t pfrio_ticket; 1956 }; 1957 1958 struct pfioc_table_64 { 1959 struct pfr_table pfrio_table; 1960 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 1961 int pfrio_esize __attribute__((aligned(8))); 1962 int pfrio_size; 1963 int pfrio_size2; 1964 int pfrio_nadd; 1965 int pfrio_ndel; 1966 int pfrio_nchange; 1967 int pfrio_flags; 1968 u_int32_t pfrio_ticket; 1969 }; 1970 #endif /* KERNEL */ 1971 1972 struct pfioc_iface { 1973 char pfiio_name[IFNAMSIZ]; 1974 void *pfiio_buffer __attribute__((aligned(8))); 1975 int pfiio_esize __attribute__((aligned(8))); 1976 int pfiio_size; 1977 int pfiio_nzero; 1978 int pfiio_flags; 1979 }; 1980 1981 #ifdef KERNEL 1982 struct pfioc_iface_32 { 1983 char pfiio_name[IFNAMSIZ]; 1984 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 1985 int pfiio_esize __attribute__((aligned(8))); 1986 int pfiio_size; 1987 int pfiio_nzero; 1988 int pfiio_flags; 1989 }; 1990 1991 struct pfioc_iface_64 { 1992 char pfiio_name[IFNAMSIZ]; 1993 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 1994 int pfiio_esize __attribute__((aligned(8))); 1995 int pfiio_size; 1996 int pfiio_nzero; 1997 int pfiio_flags; 1998 }; 1999 #endif /* KERNEL */ 2000 2001 /* 2002 * ioctl operations 2003 */ 2004 2005 #define DIOCSTART _IO ('D', 1) 2006 #define DIOCSTOP _IO ('D', 2) 2007 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2008 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2009 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2010 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2011 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2012 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2013 /* XXX cut 10 - 17 */ 2014 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2015 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2016 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2017 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2018 #define DIOCCLRSTATUS _IO ('D', 22) 2019 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2020 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2021 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2022 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2023 /* XXX cut 26 - 28 */ 2024 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2025 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2026 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2027 #define DIOCCLRRULECTRS _IO ('D', 38) 2028 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2029 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2030 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2031 #define DIOCSTARTALTQ _IO ('D', 42) 2032 #define DIOCSTOPALTQ _IO ('D', 43) 2033 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2034 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2035 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2036 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2037 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2038 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2039 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2040 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2041 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2042 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2043 /* XXX cut 55 - 57 */ 2044 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2045 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2046 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2047 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2048 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2049 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2050 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2051 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2052 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2053 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2054 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2055 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2056 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2057 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2058 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2059 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2060 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2061 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2062 #define DIOCOSFPFLUSH _IO('D', 78) 2063 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2064 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2065 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2066 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2067 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2068 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2069 #define DIOCCLRSRCNODES _IO('D', 85) 2070 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2071 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2072 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2073 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2074 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2075 2076 #ifdef KERNEL 2077 RB_HEAD(pf_src_tree, pf_src_node); 2078 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2079 pf_src_compare); 2080 __private_extern__ struct pf_src_tree tree_src_tracking; 2081 2082 RB_HEAD(pf_state_tree_id, pf_state); 2083 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2084 entry_id, pf_state_compare_id); 2085 __private_extern__ struct pf_state_tree_id tree_id; 2086 __private_extern__ struct pf_state_queue state_list; 2087 2088 TAILQ_HEAD(pf_poolqueue, pf_pool); 2089 __private_extern__ struct pf_poolqueue pf_pools[2]; 2090 __private_extern__ struct pf_palist pf_pabuf; 2091 __private_extern__ u_int32_t ticket_pabuf; 2092 #if ALTQ 2093 TAILQ_HEAD(pf_altqqueue, pf_altq); 2094 __private_extern__ struct pf_altqqueue pf_altqs[2]; 2095 __private_extern__ u_int32_t ticket_altqs_active; 2096 __private_extern__ u_int32_t ticket_altqs_inactive; 2097 __private_extern__ int altqs_inactive_open; 2098 __private_extern__ struct pf_altqqueue *pf_altqs_active; 2099 __private_extern__ struct pf_altqqueue *pf_altqs_inactive; 2100 #endif /* ALTQ */ 2101 __private_extern__ struct pf_poolqueue *pf_pools_active; 2102 __private_extern__ struct pf_poolqueue *pf_pools_inactive; 2103 2104 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2105 struct pf_addr_wrap *); 2106 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2107 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2108 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2109 2110 __private_extern__ struct pool pf_src_tree_pl, pf_rule_pl; 2111 __private_extern__ struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2112 __private_extern__ struct pool pf_state_scrub_pl; 2113 #if ALTQ 2114 __private_extern__ struct pool pf_altq_pl; 2115 #endif /* ALTQ */ 2116 #ifndef NO_APPLE_EXTENSIONS 2117 __private_extern__ struct pool pf_app_state_pl; 2118 #endif /* !NO_APPLE_EXTENSIONS */ 2119 2120 __private_extern__ struct thread *pf_purge_thread; 2121 2122 __private_extern__ void pfinit(void); 2123 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2124 __private_extern__ void pf_purge_expired_src_nodes(void); 2125 __private_extern__ void pf_purge_expired_states(u_int32_t); 2126 __private_extern__ void pf_unlink_state(struct pf_state *); 2127 __private_extern__ void pf_free_state(struct pf_state *); 2128 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2129 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2130 struct pf_rule *, struct pf_addr *, sa_family_t); 2131 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2132 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2133 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2134 u_int, int *); 2135 __private_extern__ void pf_print_state(struct pf_state *); 2136 __private_extern__ void pf_print_flags(u_int8_t); 2137 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2138 u_int8_t); 2139 2140 __private_extern__ struct ifnet *sync_ifp; 2141 __private_extern__ struct pf_rule pf_default_rule; 2142 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2143 u_int8_t); 2144 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2145 2146 #if INET 2147 __private_extern__ int pf_test(int, struct ifnet *, struct mbuf **, 2148 struct ether_header *); 2149 #endif /* INET */ 2150 2151 #if INET6 2152 __private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **, 2153 struct ether_header *); 2154 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2155 struct pf_addr *, struct pf_addr *, u_int8_t); 2156 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2157 #endif /* INET6 */ 2158 2159 #ifndef NO_APPLE_EXTENSIONS 2160 __private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *, 2161 struct mbuf *, int); 2162 #endif /* !NO_APPLE_EXTENSIONS */ 2163 __private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int, 2164 u_short *, u_short *, sa_family_t); 2165 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2166 __private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *, 2167 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2168 struct pf_ruleset *, struct pf_pdesc *); 2169 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2170 struct pf_addr *, struct pf_addr *, sa_family_t); 2171 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2172 struct pf_addr *, sa_family_t); 2173 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2174 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2175 #ifndef NO_APPLE_EXTENSIONS 2176 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2177 union pf_state_xport *); 2178 #endif /* !NO_APPLE_EXTENSIONS */ 2179 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2180 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2181 2182 __private_extern__ void pf_normalize_init(void); 2183 __private_extern__ int pf_normalize_isempty(void); 2184 __private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, 2185 u_short *, struct pf_pdesc *); 2186 __private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, 2187 u_short *, struct pf_pdesc *); 2188 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, 2189 int, int, void *, struct pf_pdesc *); 2190 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2191 __private_extern__ int pf_normalize_tcp_init(struct mbuf *, int, 2192 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2193 struct pf_state_peer *); 2194 __private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int, 2195 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2196 struct pf_state_peer *, struct pf_state_peer *, int *); 2197 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2198 __private_extern__ void pf_purge_expired_fragments(void); 2199 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2200 struct pfi_kif *); 2201 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2202 struct pf_addr_wrap *); 2203 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2204 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *); 2205 __private_extern__ void pfr_initialize(void); 2206 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2207 sa_family_t); 2208 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2209 sa_family_t, u_int64_t, int, int, int); 2210 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2211 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2212 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2213 struct pfi_dynaddr *); 2214 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2215 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2216 char *); 2217 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2218 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2219 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2220 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2221 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2222 int *, int); 2223 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2224 int *, int); 2225 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2226 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2227 int *, int); 2228 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2229 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2230 u_int64_t); 2231 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2232 int, int *, int); 2233 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2234 int, int *, int); 2235 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2236 int, int *, int *, int *, int *, int, u_int32_t); 2237 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2238 int *, int); 2239 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2240 int *, int); 2241 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2242 int, int *, int); 2243 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2244 int, int *, int); 2245 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2246 int); 2247 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2248 int); 2249 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2250 int *, int); 2251 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2252 int, int *, int *, u_int32_t, int); 2253 2254 __private_extern__ struct pfi_kif *pfi_all; 2255 2256 __private_extern__ void pfi_initialize(void); 2257 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2258 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2259 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2260 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2261 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2262 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2263 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2264 sa_family_t); 2265 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2266 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2267 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2268 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2269 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2270 __private_extern__ int pfi_set_flags(const char *, int); 2271 __private_extern__ int pfi_clear_flags(const char *, int); 2272 2273 __private_extern__ u_int16_t pf_tagname2tag(char *); 2274 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2275 __private_extern__ void pf_tag_ref(u_int16_t); 2276 __private_extern__ void pf_tag_unref(u_int16_t); 2277 __private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *, 2278 int, unsigned int); 2279 __private_extern__ u_int32_t pf_qname2qid(char *); 2280 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2281 __private_extern__ void pf_qid_unref(u_int32_t); 2282 2283 __private_extern__ struct pf_status pf_status; 2284 __private_extern__ struct pool pf_frent_pl, pf_frag_pl; 2285 2286 struct pf_pool_limit { 2287 void *pp; 2288 unsigned limit; 2289 }; 2290 __private_extern__ struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2291 2292 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2293 struct mbuf **, unsigned int, int); 2294 __private_extern__ int pf_ifaddr_hook(struct ifnet *, unsigned long); 2295 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2296 2297 /* 2298 * The following are defined with "private extern" storage class for 2299 * kernel, and "extern" for user-space. 2300 */ 2301 __private_extern__ struct pf_anchor_global pf_anchors; 2302 __private_extern__ struct pf_anchor pf_main_anchor; 2303 #define pf_main_ruleset pf_main_anchor.ruleset 2304 2305 __private_extern__ int pf_is_enabled; 2306 #define PF_IS_ENABLED (pf_is_enabled != 0) 2307 2308 /* these ruleset functions can be linked into userland programs (pfctl) */ 2309 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2310 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2311 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2312 const struct pf_ruleset *, const char *); 2313 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2314 const struct pf_rule *, struct pfioc_rule *); 2315 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2316 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2317 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2318 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2319 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2320 __private_extern__ void pf_rs_initialize(void); 2321 2322 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2323 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2324 struct mbuf *, int, const struct tcphdr *); 2325 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2326 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2327 __private_extern__ void pf_osfp_flush(void); 2328 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2329 __private_extern__ void pf_osfp_initialize(void); 2330 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2331 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2332 #else /* !KERNEL */ 2333 extern struct pf_anchor_global pf_anchors; 2334 extern struct pf_anchor pf_main_anchor; 2335 #define pf_main_ruleset pf_main_anchor.ruleset 2336 2337 /* these ruleset functions can be linked into userland programs (pfctl) */ 2338 extern int pf_get_ruleset_number(u_int8_t); 2339 extern void pf_init_ruleset(struct pf_ruleset *); 2340 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2341 const char *); 2342 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2343 struct pfioc_rule *); 2344 extern void pf_anchor_remove(struct pf_rule *); 2345 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2346 extern struct pf_anchor *pf_find_anchor(const char *); 2347 extern struct pf_ruleset *pf_find_ruleset(const char *); 2348 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2349 extern void pf_rs_initialize(void); 2350 #endif /* !KERNEL */ 2351 2352 #ifdef __cplusplus 2353 } 2354 #endif 2355 #endif /* PF || !KERNEL */ 2356 #endif /* PRIVATE */ 2357 #endif /* _NET_PFVAR_H_ */ 2358