1 /* 2 * Copyright (c) 2007-2012 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 <stdbool.h> 78 #include <sys/param.h> 79 #include <sys/types.h> 80 #include <sys/queue.h> 81 #include <libkern/tree.h> 82 83 #include <net/radix.h> 84 #include <netinet/in.h> 85 86 #ifdef KERNEL 87 #include <kern/kern_types.h> 88 #include <kern/zalloc.h> 89 #include <kern/lock.h> 90 91 #include <machine/endian.h> 92 #include <sys/systm.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 struct pf_grev1_hdr; 150 struct pf_esp_hdr; 151 #endif /* KERNEL */ 152 153 #define PF_GRE_PPTP_VARIANT 0x01 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 PF_DUMMYNET, PF_NODUMMYNET }; 159 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 160 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET, 161 PF_RULESET_MAX }; 162 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 163 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 164 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 165 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 166 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 167 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 168 enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 169 170 /* 171 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 172 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 173 */ 174 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 175 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 176 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 177 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 178 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, 179 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, 180 PFTM_ESP_ESTABLISHED, 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 #define PFTM_GREv1_FIRST_PACKET_VAL 120 199 #define PFTM_GREv1_INITIATING_VAL 30 200 #define PFTM_GREv1_ESTABLISHED_VAL 1800 201 #define PFTM_ESP_FIRST_PACKET_VAL 120 202 #define PFTM_ESP_INITIATING_VAL 30 203 #define PFTM_ESP_ESTABLISHED_VAL 900 204 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 205 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 206 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 207 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 208 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 209 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 210 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 211 212 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 213 enum { PF_LIMIT_STATES, 214 PF_LIMIT_APP_STATES, 215 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 216 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 217 #define PF_POOL_IDMASK 0x0f 218 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 219 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 220 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 221 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 222 PF_ADDR_RANGE }; 223 #define PF_POOL_TYPEMASK 0x0f 224 #define PF_POOL_STICKYADDR 0x20 225 #define PF_WSCALE_FLAG 0x80 226 #define PF_WSCALE_MASK 0x0f 227 228 #define PF_LOG 0x01 229 #define PF_LOG_ALL 0x02 230 #define PF_LOG_SOCKET_LOOKUP 0x04 231 232 struct pf_addr { 233 union { 234 struct in_addr v4; 235 struct in6_addr v6; 236 u_int8_t addr8[16]; 237 u_int16_t addr16[8]; 238 u_int32_t addr32[4]; 239 } pfa; /* 128-bit address */ 240 #define v4 pfa.v4 241 #define v6 pfa.v6 242 #define addr8 pfa.addr8 243 #define addr16 pfa.addr16 244 #define addr32 pfa.addr32 245 }; 246 247 #define PF_TABLE_NAME_SIZE 32 248 249 #define PFI_AFLAG_NETWORK 0x01 250 #define PFI_AFLAG_BROADCAST 0x02 251 #define PFI_AFLAG_PEER 0x04 252 #define PFI_AFLAG_MODEMASK 0x07 253 #define PFI_AFLAG_NOALIAS 0x08 254 255 #ifndef RTLABEL_LEN 256 #define RTLABEL_LEN 32 257 #endif 258 259 struct pf_addr_wrap { 260 union { 261 struct { 262 struct pf_addr addr; 263 struct pf_addr mask; 264 } a; 265 char ifname[IFNAMSIZ]; 266 char tblname[PF_TABLE_NAME_SIZE]; 267 char rtlabelname[RTLABEL_LEN]; 268 u_int32_t rtlabel; 269 } v; 270 union { 271 #ifdef KERNEL 272 struct pfi_dynaddr *dyn __attribute__((aligned(8))); 273 struct pfr_ktable *tbl __attribute__((aligned(8))); 274 #else /* !KERNEL */ 275 void *dyn __attribute__((aligned(8))); 276 void *tbl __attribute__((aligned(8))); 277 #endif /* !KERNEL */ 278 int dyncnt __attribute__((aligned(8))); 279 int tblcnt __attribute__((aligned(8))); 280 } p __attribute__((aligned(8))); 281 u_int8_t type; /* PF_ADDR_* */ 282 u_int8_t iflags; /* PFI_AFLAG_* */ 283 }; 284 285 struct pf_port_range { 286 u_int16_t port[2]; 287 u_int8_t op; 288 }; 289 290 union pf_rule_xport { 291 struct pf_port_range range; 292 u_int16_t call_id; 293 u_int32_t spi; 294 }; 295 296 #ifdef KERNEL 297 struct pfi_dynaddr { 298 TAILQ_ENTRY(pfi_dynaddr) entry; 299 struct pf_addr pfid_addr4; 300 struct pf_addr pfid_mask4; 301 struct pf_addr pfid_addr6; 302 struct pf_addr pfid_mask6; 303 struct pfr_ktable *pfid_kt; 304 struct pfi_kif *pfid_kif; 305 void *pfid_hook_cookie; 306 int pfid_net; /* mask or 128 */ 307 int pfid_acnt4; /* address count IPv4 */ 308 int pfid_acnt6; /* address count IPv6 */ 309 sa_family_t pfid_af; /* rule af */ 310 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 311 }; 312 313 /* 314 * Address manipulation macros 315 */ 316 317 #if INET 318 #if !INET6 319 #define PF_INET_ONLY 320 #endif /* ! INET6 */ 321 #endif /* INET */ 322 323 #if INET6 324 #if !INET 325 #define PF_INET6_ONLY 326 #endif /* ! INET */ 327 #endif /* INET6 */ 328 329 #if INET 330 #if INET6 331 #define PF_INET_INET6 332 #endif /* INET6 */ 333 #endif /* INET */ 334 335 #else /* !KERNEL */ 336 337 #define PF_INET_INET6 338 339 #endif /* !KERNEL */ 340 341 /* Both IPv4 and IPv6 */ 342 #ifdef PF_INET_INET6 343 344 #define PF_AEQ(a, b, c) \ 345 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 346 ((a)->addr32[3] == (b)->addr32[3] && \ 347 (a)->addr32[2] == (b)->addr32[2] && \ 348 (a)->addr32[1] == (b)->addr32[1] && \ 349 (a)->addr32[0] == (b)->addr32[0])) \ 350 351 #define PF_ANEQ(a, b, c) \ 352 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 353 ((a)->addr32[3] != (b)->addr32[3] || \ 354 (a)->addr32[2] != (b)->addr32[2] || \ 355 (a)->addr32[1] != (b)->addr32[1] || \ 356 (a)->addr32[0] != (b)->addr32[0])) \ 357 358 #define PF_ALEQ(a, b, c) \ 359 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \ 360 ((a)->addr32[3] <= (b)->addr32[3] && \ 361 (a)->addr32[2] <= (b)->addr32[2] && \ 362 (a)->addr32[1] <= (b)->addr32[1] && \ 363 (a)->addr32[0] <= (b)->addr32[0])) \ 364 365 #define PF_AZERO(a, c) \ 366 ((c == AF_INET && !(a)->addr32[0]) || \ 367 (!(a)->addr32[0] && !(a)->addr32[1] && \ 368 !(a)->addr32[2] && !(a)->addr32[3])) \ 369 370 #define PF_MATCHA(n, a, m, b, f) \ 371 pf_match_addr(n, a, m, b, f) 372 373 #define PF_ACPY(a, b, f) \ 374 pf_addrcpy(a, b, f) 375 376 #define PF_AINC(a, f) \ 377 pf_addr_inc(a, f) 378 379 #define PF_POOLMASK(a, b, c, d, f) \ 380 pf_poolmask(a, b, c, d, f) 381 382 #else 383 384 /* Just IPv6 */ 385 386 #ifdef PF_INET6_ONLY 387 388 #define PF_AEQ(a, b, c) \ 389 ((a)->addr32[3] == (b)->addr32[3] && \ 390 (a)->addr32[2] == (b)->addr32[2] && \ 391 (a)->addr32[1] == (b)->addr32[1] && \ 392 (a)->addr32[0] == (b)->addr32[0]) \ 393 394 #define PF_ANEQ(a, b, c) \ 395 ((a)->addr32[3] != (b)->addr32[3] || \ 396 (a)->addr32[2] != (b)->addr32[2] || \ 397 (a)->addr32[1] != (b)->addr32[1] || \ 398 (a)->addr32[0] != (b)->addr32[0]) \ 399 400 #define PF_ALEQ(a, b, c) \ 401 ((a)->addr32[3] <= (b)->addr32[3] && \ 402 (a)->addr32[2] <= (b)->addr32[2] && \ 403 (a)->addr32[1] <= (b)->addr32[1] && \ 404 (a)->addr32[0] <= (b)->addr32[0]) \ 405 406 #define PF_AZERO(a, c) \ 407 (!(a)->addr32[0] && \ 408 !(a)->addr32[1] && \ 409 !(a)->addr32[2] && \ 410 !(a)->addr32[3]) \ 411 412 #define PF_MATCHA(n, a, m, b, f) \ 413 pf_match_addr(n, a, m, b, f) 414 415 #define PF_ACPY(a, b, f) \ 416 pf_addrcpy(a, b, f) 417 418 #define PF_AINC(a, f) \ 419 pf_addr_inc(a, f) 420 421 #define PF_POOLMASK(a, b, c, d, f) \ 422 pf_poolmask(a, b, c, d, f) 423 424 #else 425 426 /* Just IPv4 */ 427 #ifdef PF_INET_ONLY 428 429 #define PF_AEQ(a, b, c) \ 430 ((a)->addr32[0] == (b)->addr32[0]) 431 432 #define PF_ANEQ(a, b, c) \ 433 ((a)->addr32[0] != (b)->addr32[0]) 434 435 #define PF_ALEQ(a, b, c) \ 436 ((a)->addr32[0] <= (b)->addr32[0]) 437 438 #define PF_AZERO(a, c) \ 439 (!(a)->addr32[0]) 440 441 #define PF_MATCHA(n, a, m, b, f) \ 442 pf_match_addr(n, a, m, b, f) 443 444 #define PF_ACPY(a, b, f) \ 445 (a)->v4.s_addr = (b)->v4.s_addr 446 447 #define PF_AINC(a, f) \ 448 do { \ 449 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 450 } while (0) 451 452 #define PF_POOLMASK(a, b, c, d, f) \ 453 do { \ 454 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 455 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ 456 } while (0) 457 458 #endif /* PF_INET_ONLY */ 459 #endif /* PF_INET6_ONLY */ 460 #endif /* PF_INET_INET6 */ 461 462 #ifdef KERNEL 463 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 464 ( \ 465 (((aw)->type == PF_ADDR_NOROUTE && \ 466 pf_routable((x), (af), NULL)) || \ 467 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 468 pf_routable((x), (af), (ifp))) || \ 469 ((aw)->type == PF_ADDR_RTLABEL && \ 470 !pf_rtlabel_match((x), (af), (aw))) || \ 471 ((aw)->type == PF_ADDR_TABLE && \ 472 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 473 ((aw)->type == PF_ADDR_DYNIFTL && \ 474 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 475 ((aw)->type == PF_ADDR_RANGE && \ 476 !pf_match_addr_range(&(aw)->v.a.addr, \ 477 &(aw)->v.a.mask, (x), (af))) || \ 478 ((aw)->type == PF_ADDR_ADDRMASK && \ 479 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 480 !PF_MATCHA(0, &(aw)->v.a.addr, \ 481 &(aw)->v.a.mask, (x), (af))))) != \ 482 (neg) \ 483 ) 484 #endif /* KERNEL */ 485 486 struct pf_rule_uid { 487 uid_t uid[2]; 488 u_int8_t op; 489 u_int8_t _pad[3]; 490 }; 491 492 struct pf_rule_gid { 493 uid_t gid[2]; 494 u_int8_t op; 495 u_int8_t _pad[3]; 496 }; 497 498 struct pf_rule_addr { 499 struct pf_addr_wrap addr; 500 union pf_rule_xport xport; 501 u_int8_t neg; 502 }; 503 504 struct pf_pooladdr { 505 struct pf_addr_wrap addr; 506 TAILQ_ENTRY(pf_pooladdr) entries; 507 #if !defined(__LP64__) 508 u_int32_t _pad[2]; 509 #endif /* !__LP64__ */ 510 char ifname[IFNAMSIZ]; 511 #ifdef KERNEL 512 struct pfi_kif *kif __attribute__((aligned(8))); 513 #else /* !KERNEL */ 514 void *kif __attribute__((aligned(8))); 515 #endif /* !KERNEL */ 516 }; 517 518 TAILQ_HEAD(pf_palist, pf_pooladdr); 519 520 struct pf_poolhashkey { 521 union { 522 u_int8_t key8[16]; 523 u_int16_t key16[8]; 524 u_int32_t key32[4]; 525 } pfk; /* 128-bit hash key */ 526 #define key8 pfk.key8 527 #define key16 pfk.key16 528 #define key32 pfk.key32 529 }; 530 531 struct pf_pool { 532 struct pf_palist list; 533 #if !defined(__LP64__) 534 u_int32_t _pad[2]; 535 #endif /* !__LP64__ */ 536 #ifdef KERNEL 537 struct pf_pooladdr *cur __attribute__((aligned(8))); 538 #else /* !KERNEL */ 539 void *cur __attribute__((aligned(8))); 540 #endif /* !KERNEL */ 541 struct pf_poolhashkey key __attribute__((aligned(8))); 542 struct pf_addr counter; 543 int tblidx; 544 u_int16_t proxy_port[2]; 545 u_int8_t port_op; 546 u_int8_t opts; 547 }; 548 549 550 /* A packed Operating System description for fingerprinting */ 551 typedef u_int32_t pf_osfp_t; 552 #define PF_OSFP_ANY ((pf_osfp_t)0) 553 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 554 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 555 556 struct pf_osfp_entry { 557 SLIST_ENTRY(pf_osfp_entry) fp_entry; 558 #if !defined(__LP64__) 559 u_int32_t _pad; 560 #endif /* !__LP64__ */ 561 pf_osfp_t fp_os; 562 int fp_enflags; 563 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 564 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 565 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 566 #define PF_OSFP_LEN 32 567 char fp_class_nm[PF_OSFP_LEN]; 568 char fp_version_nm[PF_OSFP_LEN]; 569 char fp_subtype_nm[PF_OSFP_LEN]; 570 }; 571 #define PF_OSFP_ENTRY_EQ(a, b) \ 572 ((a)->fp_os == (b)->fp_os && \ 573 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 574 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 575 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 576 577 /* handle pf_osfp_t packing */ 578 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 579 #define _FP_UNUSED_BITS 1 580 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 581 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 582 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 583 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 584 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 585 ((1 << _FP_CLASS_BITS) - 1); \ 586 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 587 ((1 << _FP_VERSION_BITS) - 1);\ 588 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 589 } while (0) 590 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 591 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 592 + _FP_SUBTYPE_BITS); \ 593 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 594 _FP_SUBTYPE_BITS; \ 595 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 596 } while (0) 597 598 /* the fingerprint of an OSes TCP SYN packet */ 599 typedef u_int64_t pf_tcpopts_t; 600 struct pf_os_fingerprint { 601 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 602 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 603 u_int16_t fp_wsize; /* TCP window size */ 604 u_int16_t fp_psize; /* ip->ip_len */ 605 u_int16_t fp_mss; /* TCP MSS */ 606 u_int16_t fp_flags; 607 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 608 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 609 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 610 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 611 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 612 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 613 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 614 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 615 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 616 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 617 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 618 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 619 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 620 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 621 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 622 u_int8_t fp_optcnt; /* TCP option count */ 623 u_int8_t fp_wscale; /* TCP window scaling */ 624 u_int8_t fp_ttl; /* IPv4 TTL */ 625 #define PF_OSFP_MAXTTL_OFFSET 40 626 /* TCP options packing */ 627 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 628 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 629 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 630 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 631 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 632 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 633 #define PF_OSFP_MAX_OPTS \ 634 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 635 / PF_OSFP_TCPOPT_BITS 636 637 SLIST_ENTRY(pf_os_fingerprint) fp_next; 638 }; 639 640 struct pf_osfp_ioctl { 641 struct pf_osfp_entry fp_os; 642 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 643 u_int16_t fp_wsize; /* TCP window size */ 644 u_int16_t fp_psize; /* ip->ip_len */ 645 u_int16_t fp_mss; /* TCP MSS */ 646 u_int16_t fp_flags; 647 u_int8_t fp_optcnt; /* TCP option count */ 648 u_int8_t fp_wscale; /* TCP window scaling */ 649 u_int8_t fp_ttl; /* IPv4 TTL */ 650 651 int fp_getnum; /* DIOCOSFPGET number */ 652 }; 653 654 655 union pf_rule_ptr { 656 struct pf_rule *ptr __attribute__((aligned(8))); 657 u_int32_t nr __attribute__((aligned(8))); 658 } __attribute__((aligned(8))); 659 660 #define PF_ANCHOR_NAME_SIZE 64 661 662 struct pf_rule { 663 struct pf_rule_addr src; 664 struct pf_rule_addr dst; 665 #define PF_SKIP_IFP 0 666 #define PF_SKIP_DIR 1 667 #define PF_SKIP_AF 2 668 #define PF_SKIP_PROTO 3 669 #define PF_SKIP_SRC_ADDR 4 670 #define PF_SKIP_SRC_PORT 5 671 #define PF_SKIP_DST_ADDR 6 672 #define PF_SKIP_DST_PORT 7 673 #define PF_SKIP_COUNT 8 674 union pf_rule_ptr skip[PF_SKIP_COUNT]; 675 #define PF_RULE_LABEL_SIZE 64 676 char label[PF_RULE_LABEL_SIZE]; 677 #define PF_QNAME_SIZE 64 678 char ifname[IFNAMSIZ]; 679 char qname[PF_QNAME_SIZE]; 680 char pqname[PF_QNAME_SIZE]; 681 #define PF_TAG_NAME_SIZE 64 682 char tagname[PF_TAG_NAME_SIZE]; 683 char match_tagname[PF_TAG_NAME_SIZE]; 684 685 char overload_tblname[PF_TABLE_NAME_SIZE]; 686 687 TAILQ_ENTRY(pf_rule) entries; 688 #if !defined(__LP64__) 689 u_int32_t _pad[2]; 690 #endif /* !__LP64__ */ 691 struct pf_pool rpool; 692 693 u_int64_t evaluations; 694 u_int64_t packets[2]; 695 u_int64_t bytes[2]; 696 697 u_int32_t ticket; 698 #define PF_OWNER_NAME_SIZE 64 699 char owner[PF_OWNER_NAME_SIZE]; 700 u_int32_t priority; 701 702 #ifdef KERNEL 703 struct pfi_kif *kif __attribute__((aligned(8))); 704 #else /* !KERNEL */ 705 void *kif __attribute__((aligned(8))); 706 #endif /* !KERNEL */ 707 struct pf_anchor *anchor __attribute__((aligned(8))); 708 #ifdef KERNEL 709 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 710 #else /* !KERNEL */ 711 void *overload_tbl __attribute__((aligned(8))); 712 #endif /* !KERNEL */ 713 714 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 715 716 unsigned int rtableid; 717 u_int32_t timeout[PFTM_MAX]; 718 u_int32_t states; 719 u_int32_t max_states; 720 u_int32_t src_nodes; 721 u_int32_t max_src_nodes; 722 u_int32_t max_src_states; 723 u_int32_t max_src_conn; 724 struct { 725 u_int32_t limit; 726 u_int32_t seconds; 727 } max_src_conn_rate; 728 u_int32_t qid; 729 u_int32_t pqid; 730 u_int32_t rt_listid; 731 u_int32_t nr; 732 u_int32_t prob; 733 uid_t cuid; 734 pid_t cpid; 735 736 u_int16_t return_icmp; 737 u_int16_t return_icmp6; 738 u_int16_t max_mss; 739 u_int16_t tag; 740 u_int16_t match_tag; 741 742 struct pf_rule_uid uid; 743 struct pf_rule_gid gid; 744 745 u_int32_t rule_flag; 746 u_int8_t action; 747 u_int8_t direction; 748 u_int8_t log; 749 u_int8_t logif; 750 u_int8_t quick; 751 u_int8_t ifnot; 752 u_int8_t match_tag_not; 753 u_int8_t natpass; 754 755 #define PF_STATE_NORMAL 0x1 756 #define PF_STATE_MODULATE 0x2 757 #define PF_STATE_SYNPROXY 0x3 758 u_int8_t keep_state; 759 sa_family_t af; 760 u_int8_t proto; 761 u_int8_t type; 762 u_int8_t code; 763 u_int8_t flags; 764 u_int8_t flagset; 765 u_int8_t min_ttl; 766 u_int8_t allow_opts; 767 u_int8_t rt; 768 u_int8_t return_ttl; 769 770 /* service class categories */ 771 #define SCIDX_MASK 0x0f 772 #define SC_BE 0x10 773 #define SC_BK_SYS 0x11 774 #define SC_BK 0x12 775 #define SC_RD 0x13 776 #define SC_OAM 0x14 777 #define SC_AV 0x15 778 #define SC_RV 0x16 779 #define SC_VI 0x17 780 #define SC_VO 0x18 781 #define SC_CTL 0x19 782 783 /* diffserve code points */ 784 #define DSCP_MASK 0xfc 785 #define DSCP_CUMASK 0x03 786 #define DSCP_EF 0xb8 787 #define DSCP_AF11 0x28 788 #define DSCP_AF12 0x30 789 #define DSCP_AF13 0x38 790 #define DSCP_AF21 0x48 791 #define DSCP_AF22 0x50 792 #define DSCP_AF23 0x58 793 #define DSCP_AF31 0x68 794 #define DSCP_AF32 0x70 795 #define DSCP_AF33 0x78 796 #define DSCP_AF41 0x88 797 #define DSCP_AF42 0x90 798 #define DSCP_AF43 0x98 799 #define AF_CLASSMASK 0xe0 800 #define AF_DROPPRECMASK 0x18 801 u_int8_t tos; 802 u_int8_t anchor_relative; 803 u_int8_t anchor_wildcard; 804 805 #define PF_FLUSH 0x01 806 #define PF_FLUSH_GLOBAL 0x02 807 u_int8_t flush; 808 809 u_int8_t proto_variant; 810 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 811 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 812 u_int32_t dnpipe; 813 u_int32_t dntype; 814 }; 815 816 /* pf device identifiers */ 817 #define PFDEV_PF 0 818 #define PFDEV_PFM 1 819 #define PFDEV_MAX 2 820 821 /* rule flags */ 822 #define PFRULE_DROP 0x0000 823 #define PFRULE_RETURNRST 0x0001 824 #define PFRULE_FRAGMENT 0x0002 825 #define PFRULE_RETURNICMP 0x0004 826 #define PFRULE_RETURN 0x0008 827 #define PFRULE_NOSYNC 0x0010 828 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 829 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 830 831 /* scrub flags */ 832 #define PFRULE_NODF 0x0100 833 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 834 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 835 #define PFRULE_RANDOMID 0x0800 836 #define PFRULE_REASSEMBLE_TCP 0x1000 837 838 /* rule flags for TOS/DSCP/service class differentiation */ 839 #define PFRULE_TOS 0x2000 840 #define PFRULE_DSCP 0x4000 841 #define PFRULE_SC 0x8000 842 843 /* rule flags again */ 844 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 845 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 846 847 #define PFSTATE_HIWAT 10000 /* default state table size */ 848 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 849 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 850 851 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 852 853 enum pf_extmap { 854 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 855 PF_EXTMAP_AD, /* Address-dependent mapping */ 856 PF_EXTMAP_EI /* Endpoint-independent mapping */ 857 }; 858 859 enum pf_extfilter { 860 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 861 PF_EXTFILTER_AD, /* Address-dependent filtering */ 862 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 863 }; 864 865 struct pf_threshold { 866 u_int32_t limit; 867 #define PF_THRESHOLD_MULT 1000 868 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 869 u_int32_t seconds; 870 u_int32_t count; 871 u_int32_t last; 872 }; 873 874 struct pf_src_node { 875 RB_ENTRY(pf_src_node) entry; 876 struct pf_addr addr; 877 struct pf_addr raddr; 878 union pf_rule_ptr rule; 879 #ifdef KERNEL 880 struct pfi_kif *kif; 881 #else /* !KERNEL */ 882 void *kif; 883 #endif /* !KERNEL */ 884 u_int64_t bytes[2]; 885 u_int64_t packets[2]; 886 u_int32_t states; 887 u_int32_t conn; 888 struct pf_threshold conn_rate; 889 u_int64_t creation; 890 u_int64_t expire; 891 sa_family_t af; 892 u_int8_t ruletype; 893 }; 894 895 #define PFSNODE_HIWAT 10000 /* default source node table size */ 896 897 #ifdef KERNEL 898 struct pf_state_scrub { 899 struct timeval pfss_last; /* time received last packet */ 900 u_int32_t pfss_tsecr; /* last echoed timestamp */ 901 u_int32_t pfss_tsval; /* largest timestamp */ 902 u_int32_t pfss_tsval0; /* original timestamp */ 903 u_int16_t pfss_flags; 904 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 905 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 906 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 907 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 908 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 909 u_int8_t pfss_ttl; /* stashed TTL */ 910 u_int8_t pad; 911 u_int32_t pfss_ts_mod; /* timestamp modulation */ 912 }; 913 #endif /* KERNEL */ 914 915 union pf_state_xport { 916 u_int16_t port; 917 u_int16_t call_id; 918 u_int32_t spi; 919 }; 920 921 struct pf_state_host { 922 struct pf_addr addr; 923 union pf_state_xport xport; 924 }; 925 926 #ifdef KERNEL 927 struct pf_state_peer { 928 u_int32_t seqlo; /* Max sequence number sent */ 929 u_int32_t seqhi; /* Max the other end ACKd + win */ 930 u_int32_t seqdiff; /* Sequence number modulator */ 931 u_int16_t max_win; /* largest window (pre scaling) */ 932 u_int8_t state; /* active state level */ 933 u_int8_t wscale; /* window scaling factor */ 934 u_int16_t mss; /* Maximum segment size option */ 935 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 936 struct pf_state_scrub *scrub; /* state is scrubbed */ 937 u_int8_t pad[3]; 938 }; 939 940 TAILQ_HEAD(pf_state_queue, pf_state); 941 942 struct pf_state; 943 struct pf_pdesc; 944 struct pf_app_state; 945 946 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 947 struct pfi_kif *); 948 949 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 950 951 struct pf_pptp_state { 952 struct pf_state *grev1_state; 953 }; 954 955 struct pf_grev1_state { 956 struct pf_state *pptp_state; 957 }; 958 959 struct pf_ike_state { 960 u_int64_t cookie; 961 }; 962 963 struct pf_app_state { 964 pf_app_handler handler; 965 pf_app_compare compare_lan_ext; 966 pf_app_compare compare_ext_gwy; 967 union { 968 struct pf_pptp_state pptp; 969 struct pf_grev1_state grev1; 970 struct pf_ike_state ike; 971 } u; 972 }; 973 974 /* keep synced with struct pf_state, used in RB_FIND */ 975 struct pf_state_key_cmp { 976 struct pf_state_host lan; 977 struct pf_state_host gwy; 978 struct pf_state_host ext; 979 sa_family_t af; 980 u_int8_t proto; 981 u_int8_t direction; 982 u_int8_t proto_variant; 983 struct pf_app_state *app_state; 984 }; 985 986 TAILQ_HEAD(pf_statelist, pf_state); 987 988 struct pf_state_key { 989 struct pf_state_host lan; 990 struct pf_state_host gwy; 991 struct pf_state_host ext; 992 sa_family_t af; 993 u_int8_t proto; 994 u_int8_t direction; 995 u_int8_t proto_variant; 996 struct pf_app_state *app_state; 997 u_int32_t flowhash; 998 999 RB_ENTRY(pf_state_key) entry_lan_ext; 1000 RB_ENTRY(pf_state_key) entry_ext_gwy; 1001 struct pf_statelist states; 1002 u_int32_t refcnt; 1003 }; 1004 1005 1006 /* keep synced with struct pf_state, used in RB_FIND */ 1007 struct pf_state_cmp { 1008 u_int64_t id; 1009 u_int32_t creatorid; 1010 u_int32_t pad; 1011 }; 1012 1013 /* flowhash key (12-bytes multiple for performance) */ 1014 struct pf_flowhash_key { 1015 struct pf_state_host ap1; /* address+port blob 1 */ 1016 struct pf_state_host ap2; /* address+port blob 2 */ 1017 u_int32_t af; 1018 u_int32_t proto; 1019 }; 1020 #endif /* KERNEL */ 1021 1022 struct hook_desc; 1023 TAILQ_HEAD(hook_desc_head, hook_desc); 1024 1025 #ifdef KERNEL 1026 struct pf_state { 1027 u_int64_t id; 1028 u_int32_t creatorid; 1029 u_int32_t pad; 1030 1031 TAILQ_ENTRY(pf_state) entry_list; 1032 TAILQ_ENTRY(pf_state) next; 1033 RB_ENTRY(pf_state) entry_id; 1034 struct pf_state_peer src; 1035 struct pf_state_peer dst; 1036 union pf_rule_ptr rule; 1037 union pf_rule_ptr anchor; 1038 union pf_rule_ptr nat_rule; 1039 struct pf_addr rt_addr; 1040 struct hook_desc_head unlink_hooks; 1041 struct pf_state_key *state_key; 1042 struct pfi_kif *kif; 1043 struct pfi_kif *rt_kif; 1044 struct pf_src_node *src_node; 1045 struct pf_src_node *nat_src_node; 1046 u_int64_t packets[2]; 1047 u_int64_t bytes[2]; 1048 u_int64_t creation; 1049 u_int64_t expire; 1050 u_int64_t pfsync_time; 1051 u_int16_t tag; 1052 u_int8_t log; 1053 u_int8_t allow_opts; 1054 u_int8_t timeout; 1055 u_int8_t sync_flags; 1056 }; 1057 #endif /* KERNEL */ 1058 1059 #define PFSTATE_NOSYNC 0x01 1060 #define PFSTATE_FROMSYNC 0x02 1061 #define PFSTATE_STALE 0x04 1062 1063 #define __packed __attribute__((__packed__)) 1064 1065 /* 1066 * Unified state structures for pulling states out of the kernel 1067 * used by pfsync(4) and the pf(4) ioctl. 1068 */ 1069 struct pfsync_state_scrub { 1070 u_int16_t pfss_flags; 1071 u_int8_t pfss_ttl; /* stashed TTL */ 1072 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1073 u_int8_t scrub_flag; 1074 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1075 } __packed; 1076 1077 struct pfsync_state_host { 1078 struct pf_addr addr; 1079 union pf_state_xport xport; 1080 u_int16_t pad[2]; 1081 } __packed; 1082 1083 struct pfsync_state_peer { 1084 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1085 u_int32_t seqlo; /* Max sequence number sent */ 1086 u_int32_t seqhi; /* Max the other end ACKd + win */ 1087 u_int32_t seqdiff; /* Sequence number modulator */ 1088 u_int16_t max_win; /* largest window (pre scaling) */ 1089 u_int16_t mss; /* Maximum segment size option */ 1090 u_int8_t state; /* active state level */ 1091 u_int8_t wscale; /* window scaling factor */ 1092 u_int8_t pad[6]; 1093 } __packed; 1094 1095 struct pfsync_state { 1096 u_int32_t id[2]; 1097 char ifname[IFNAMSIZ]; 1098 struct pfsync_state_host lan; 1099 struct pfsync_state_host gwy; 1100 struct pfsync_state_host ext; 1101 struct pfsync_state_peer src; 1102 struct pfsync_state_peer dst; 1103 struct pf_addr rt_addr; 1104 struct hook_desc_head unlink_hooks; 1105 #if !defined(__LP64__) 1106 u_int32_t _pad[2]; 1107 #endif /* !__LP64__ */ 1108 u_int32_t rule; 1109 u_int32_t anchor; 1110 u_int32_t nat_rule; 1111 u_int64_t creation; 1112 u_int64_t expire; 1113 u_int32_t packets[2][2]; 1114 u_int32_t bytes[2][2]; 1115 u_int32_t creatorid; 1116 u_int16_t tag; 1117 sa_family_t af; 1118 u_int8_t proto; 1119 u_int8_t direction; 1120 u_int8_t log; 1121 u_int8_t allow_opts; 1122 u_int8_t timeout; 1123 u_int8_t sync_flags; 1124 u_int8_t updates; 1125 u_int8_t proto_variant; 1126 u_int8_t __pad; 1127 u_int32_t flowhash; 1128 } __packed; 1129 1130 #define PFSYNC_FLAG_COMPRESS 0x01 1131 #define PFSYNC_FLAG_STALE 0x02 1132 #define PFSYNC_FLAG_SRCNODE 0x04 1133 #define PFSYNC_FLAG_NATSRCNODE 0x08 1134 1135 #ifdef KERNEL 1136 /* for copies to/from userland via pf_ioctl() */ 1137 #define pf_state_peer_to_pfsync(s, d) do { \ 1138 (d)->seqlo = (s)->seqlo; \ 1139 (d)->seqhi = (s)->seqhi; \ 1140 (d)->seqdiff = (s)->seqdiff; \ 1141 (d)->max_win = (s)->max_win; \ 1142 (d)->mss = (s)->mss; \ 1143 (d)->state = (s)->state; \ 1144 (d)->wscale = (s)->wscale; \ 1145 if ((s)->scrub) { \ 1146 (d)->scrub.pfss_flags = \ 1147 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1148 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1149 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1150 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1151 } \ 1152 } while (0) 1153 1154 #define pf_state_peer_from_pfsync(s, d) do { \ 1155 (d)->seqlo = (s)->seqlo; \ 1156 (d)->seqhi = (s)->seqhi; \ 1157 (d)->seqdiff = (s)->seqdiff; \ 1158 (d)->max_win = (s)->max_win; \ 1159 (d)->mss = ntohs((s)->mss); \ 1160 (d)->state = (s)->state; \ 1161 (d)->wscale = (s)->wscale; \ 1162 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1163 (d)->scrub != NULL) { \ 1164 (d)->scrub->pfss_flags = \ 1165 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1166 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1167 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1168 } \ 1169 } while (0) 1170 #endif /* KERNEL */ 1171 1172 #define pf_state_counter_to_pfsync(s, d) do { \ 1173 d[0] = (s>>32)&0xffffffff; \ 1174 d[1] = s&0xffffffff; \ 1175 } while (0) 1176 1177 #define pf_state_counter_from_pfsync(s) \ 1178 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1179 1180 1181 1182 TAILQ_HEAD(pf_rulequeue, pf_rule); 1183 1184 struct pf_anchor; 1185 1186 struct pf_ruleset { 1187 struct { 1188 struct pf_rulequeue queues[2]; 1189 struct { 1190 struct pf_rulequeue *ptr; 1191 struct pf_rule **ptr_array; 1192 u_int32_t rcount; 1193 u_int32_t ticket; 1194 int open; 1195 } active, inactive; 1196 } rules[PF_RULESET_MAX]; 1197 struct pf_anchor *anchor; 1198 u_int32_t tticket; 1199 int tables; 1200 int topen; 1201 }; 1202 1203 RB_HEAD(pf_anchor_global, pf_anchor); 1204 RB_HEAD(pf_anchor_node, pf_anchor); 1205 struct pf_anchor { 1206 RB_ENTRY(pf_anchor) entry_global; 1207 RB_ENTRY(pf_anchor) entry_node; 1208 struct pf_anchor *parent; 1209 struct pf_anchor_node children; 1210 char name[PF_ANCHOR_NAME_SIZE]; 1211 char path[MAXPATHLEN]; 1212 struct pf_ruleset ruleset; 1213 int refcnt; /* anchor rules */ 1214 int match; 1215 char owner[PF_OWNER_NAME_SIZE]; 1216 }; 1217 #ifdef KERNEL 1218 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1219 pf_anchor_compare); 1220 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1221 pf_anchor_compare); 1222 #else /* !KERNEL */ 1223 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1224 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1225 #endif /* !KERNEL */ 1226 1227 #define PF_RESERVED_ANCHOR "_pf" 1228 1229 #define PFR_TFLAG_PERSIST 0x00000001 1230 #define PFR_TFLAG_CONST 0x00000002 1231 #define PFR_TFLAG_ACTIVE 0x00000004 1232 #define PFR_TFLAG_INACTIVE 0x00000008 1233 #define PFR_TFLAG_REFERENCED 0x00000010 1234 #define PFR_TFLAG_REFDANCHOR 0x00000020 1235 #define PFR_TFLAG_USRMASK 0x00000003 1236 #define PFR_TFLAG_SETMASK 0x0000003C 1237 #define PFR_TFLAG_ALLMASK 0x0000003F 1238 1239 struct pfr_table { 1240 char pfrt_anchor[MAXPATHLEN]; 1241 char pfrt_name[PF_TABLE_NAME_SIZE]; 1242 u_int32_t pfrt_flags; 1243 u_int8_t pfrt_fback; 1244 }; 1245 1246 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1247 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1248 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1249 1250 struct pfr_addr { 1251 union { 1252 struct in_addr _pfra_ip4addr; 1253 struct in6_addr _pfra_ip6addr; 1254 } pfra_u; 1255 u_int8_t pfra_af; 1256 u_int8_t pfra_net; 1257 u_int8_t pfra_not; 1258 u_int8_t pfra_fback; 1259 }; 1260 #define pfra_ip4addr pfra_u._pfra_ip4addr 1261 #define pfra_ip6addr pfra_u._pfra_ip6addr 1262 1263 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1264 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1265 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1266 1267 struct pfr_astats { 1268 struct pfr_addr pfras_a; 1269 #if !defined(__LP64__) 1270 u_int32_t _pad; 1271 #endif /* !__LP64__ */ 1272 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1273 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1274 u_int64_t pfras_tzero; 1275 }; 1276 1277 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1278 1279 struct pfr_tstats { 1280 struct pfr_table pfrts_t; 1281 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1282 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1283 u_int64_t pfrts_match; 1284 u_int64_t pfrts_nomatch; 1285 u_int64_t pfrts_tzero; 1286 int pfrts_cnt; 1287 int pfrts_refcnt[PFR_REFCNT_MAX]; 1288 #if !defined(__LP64__) 1289 u_int32_t _pad; 1290 #endif /* !__LP64__ */ 1291 }; 1292 #define pfrts_name pfrts_t.pfrt_name 1293 #define pfrts_flags pfrts_t.pfrt_flags 1294 1295 #ifdef KERNEL 1296 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1297 struct pfr_kentry { 1298 struct radix_node pfrke_node[2]; 1299 union sockaddr_union pfrke_sa; 1300 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1301 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1302 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1303 u_int64_t pfrke_tzero; 1304 u_int8_t pfrke_af; 1305 u_int8_t pfrke_net; 1306 u_int8_t pfrke_not; 1307 u_int8_t pfrke_mark; 1308 u_int8_t pfrke_intrpool; 1309 }; 1310 1311 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1312 RB_HEAD(pfr_ktablehead, pfr_ktable); 1313 struct pfr_ktable { 1314 struct pfr_tstats pfrkt_ts; 1315 RB_ENTRY(pfr_ktable) pfrkt_tree; 1316 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1317 struct radix_node_head *pfrkt_ip4; 1318 struct radix_node_head *pfrkt_ip6; 1319 struct pfr_ktable *pfrkt_shadow; 1320 struct pfr_ktable *pfrkt_root; 1321 struct pf_ruleset *pfrkt_rs; 1322 u_int64_t pfrkt_larg; 1323 u_int32_t pfrkt_nflags; 1324 }; 1325 #define pfrkt_t pfrkt_ts.pfrts_t 1326 #define pfrkt_name pfrkt_t.pfrt_name 1327 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1328 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1329 #define pfrkt_flags pfrkt_t.pfrt_flags 1330 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1331 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1332 #define pfrkt_packets pfrkt_ts.pfrts_packets 1333 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1334 #define pfrkt_match pfrkt_ts.pfrts_match 1335 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1336 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1337 1338 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1339 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1340 entry_lan_ext, pf_state_compare_lan_ext); 1341 1342 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1343 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1344 entry_ext_gwy, pf_state_compare_ext_gwy); 1345 1346 RB_HEAD(pfi_ifhead, pfi_kif); 1347 1348 /* state tables */ 1349 __private_extern__ struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1350 __private_extern__ struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 1351 1352 /* keep synced with pfi_kif, used in RB_FIND */ 1353 struct pfi_kif_cmp { 1354 char pfik_name[IFNAMSIZ]; 1355 }; 1356 1357 struct pfi_kif { 1358 char pfik_name[IFNAMSIZ]; 1359 RB_ENTRY(pfi_kif) pfik_tree; 1360 u_int64_t pfik_packets[2][2][2]; 1361 u_int64_t pfik_bytes[2][2][2]; 1362 u_int64_t pfik_tzero; 1363 int pfik_flags; 1364 void *pfik_ah_cookie; 1365 struct ifnet *pfik_ifp; 1366 int pfik_states; 1367 int pfik_rules; 1368 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1369 }; 1370 1371 enum pfi_kif_refs { 1372 PFI_KIF_REF_NONE, 1373 PFI_KIF_REF_STATE, 1374 PFI_KIF_REF_RULE 1375 }; 1376 1377 struct pfi_uif { 1378 #else /* !KERNEL */ 1379 struct pfi_kif { 1380 #endif /* !KERNEL */ 1381 char pfik_name[IFNAMSIZ]; 1382 u_int64_t pfik_packets[2][2][2]; 1383 u_int64_t pfik_bytes[2][2][2]; 1384 u_int64_t pfik_tzero; 1385 int pfik_flags; 1386 int pfik_states; 1387 int pfik_rules; 1388 #if !defined(__LP64__) 1389 u_int32_t _pad; 1390 #endif /* !__LP64__ */ 1391 }; 1392 1393 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1394 1395 #ifdef KERNEL 1396 struct pf_pdesc { 1397 struct { 1398 int done; 1399 uid_t uid; 1400 gid_t gid; 1401 pid_t pid; 1402 } lookup; 1403 u_int64_t tot_len; /* Make Mickey money */ 1404 union { 1405 struct tcphdr *tcp; 1406 struct udphdr *udp; 1407 struct icmp *icmp; 1408 #if INET6 1409 struct icmp6_hdr *icmp6; 1410 #endif /* INET6 */ 1411 struct pf_grev1_hdr *grev1; 1412 struct pf_esp_hdr *esp; 1413 void *any; 1414 } hdr; 1415 struct pf_addr baddr; /* address before translation */ 1416 struct pf_addr naddr; /* address after translation */ 1417 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1418 struct pf_addr *src; 1419 struct pf_addr *dst; 1420 struct ether_header 1421 *eh; 1422 struct mbuf *mp; 1423 int lmw; /* lazy writable offset */ 1424 struct pf_mtag *pf_mtag; 1425 u_int16_t *ip_sum; 1426 u_int32_t p_len; /* total length of payload */ 1427 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1428 /* state code. Easier than tags */ 1429 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1430 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1431 #define PFDESC_FLOW_ADV 0x0004 /* sender can use flow advisory */ 1432 #define PFDESC_IP_FRAG 0x0008 /* This is a fragment */ 1433 sa_family_t af; 1434 u_int8_t proto; 1435 u_int8_t tos; 1436 u_int8_t proto_variant; 1437 mbuf_svc_class_t sc; 1438 u_int32_t flowhash; /* flow hash to identify the sender */ 1439 }; 1440 #endif /* KERNEL */ 1441 1442 /* flags for RDR options */ 1443 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1444 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1445 1446 /* Reasons code for passing/dropping a packet */ 1447 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1448 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1449 #define PFRES_FRAG 2 /* Dropping following fragment */ 1450 #define PFRES_SHORT 3 /* Dropping short packet */ 1451 #define PFRES_NORM 4 /* Dropping by normalizer */ 1452 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1453 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1454 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1455 #define PFRES_IPOPTIONS 8 /* IP option */ 1456 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1457 #define PFRES_BADSTATE 10 /* State mismatch */ 1458 #define PFRES_STATEINS 11 /* State insertion failure */ 1459 #define PFRES_MAXSTATES 12 /* State limit */ 1460 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1461 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1462 #define PFRES_DUMMYNET 15 /* Dummynet */ 1463 #define PFRES_MAX 16 /* total+1 */ 1464 1465 #define PFRES_NAMES { \ 1466 "match", \ 1467 "bad-offset", \ 1468 "fragment", \ 1469 "short", \ 1470 "normalize", \ 1471 "memory", \ 1472 "bad-timestamp", \ 1473 "congestion", \ 1474 "ip-option", \ 1475 "proto-cksum", \ 1476 "state-mismatch", \ 1477 "state-insert", \ 1478 "state-limit", \ 1479 "src-limit", \ 1480 "synproxy", \ 1481 "dummynet", \ 1482 NULL \ 1483 } 1484 1485 /* Counters for other things we want to keep track of */ 1486 #define LCNT_STATES 0 /* states */ 1487 #define LCNT_SRCSTATES 1 /* max-src-states */ 1488 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1489 #define LCNT_SRCCONN 3 /* max-src-conn */ 1490 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1491 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1492 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1493 #define LCNT_MAX 7 /* total+1 */ 1494 1495 #define LCNT_NAMES { \ 1496 "max states per rule", \ 1497 "max-src-states", \ 1498 "max-src-nodes", \ 1499 "max-src-conn", \ 1500 "max-src-conn-rate", \ 1501 "overload table insertion", \ 1502 "overload flush states", \ 1503 NULL \ 1504 } 1505 1506 /* UDP state enumeration */ 1507 #define PFUDPS_NO_TRAFFIC 0 1508 #define PFUDPS_SINGLE 1 1509 #define PFUDPS_MULTIPLE 2 1510 1511 #define PFUDPS_NSTATES 3 /* number of state levels */ 1512 1513 #define PFUDPS_NAMES { \ 1514 "NO_TRAFFIC", \ 1515 "SINGLE", \ 1516 "MULTIPLE", \ 1517 NULL \ 1518 } 1519 1520 /* GREv1 protocol state enumeration */ 1521 #define PFGRE1S_NO_TRAFFIC 0 1522 #define PFGRE1S_INITIATING 1 1523 #define PFGRE1S_ESTABLISHED 2 1524 1525 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1526 1527 #define PFGRE1S_NAMES { \ 1528 "NO_TRAFFIC", \ 1529 "INITIATING", \ 1530 "ESTABLISHED", \ 1531 NULL \ 1532 } 1533 1534 #define PFESPS_NO_TRAFFIC 0 1535 #define PFESPS_INITIATING 1 1536 #define PFESPS_ESTABLISHED 2 1537 1538 #define PFESPS_NSTATES 3 /* number of state levels */ 1539 1540 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1541 1542 /* Other protocol state enumeration */ 1543 #define PFOTHERS_NO_TRAFFIC 0 1544 #define PFOTHERS_SINGLE 1 1545 #define PFOTHERS_MULTIPLE 2 1546 1547 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1548 1549 #define PFOTHERS_NAMES { \ 1550 "NO_TRAFFIC", \ 1551 "SINGLE", \ 1552 "MULTIPLE", \ 1553 NULL \ 1554 } 1555 1556 #define FCNT_STATE_SEARCH 0 1557 #define FCNT_STATE_INSERT 1 1558 #define FCNT_STATE_REMOVALS 2 1559 #define FCNT_MAX 3 1560 1561 #define SCNT_SRC_NODE_SEARCH 0 1562 #define SCNT_SRC_NODE_INSERT 1 1563 #define SCNT_SRC_NODE_REMOVALS 2 1564 #define SCNT_MAX 3 1565 1566 #ifdef KERNEL 1567 #define ACTION_SET(a, x) \ 1568 do { \ 1569 if ((a) != NULL) \ 1570 *(a) = (x); \ 1571 } while (0) 1572 1573 #define REASON_SET(a, x) \ 1574 do { \ 1575 if ((a) != NULL) \ 1576 *(a) = (x); \ 1577 if (x < PFRES_MAX) \ 1578 pf_status.counters[x]++; \ 1579 } while (0) 1580 #endif /* KERNEL */ 1581 1582 struct pf_status { 1583 u_int64_t counters[PFRES_MAX]; 1584 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1585 u_int64_t fcounters[FCNT_MAX]; 1586 u_int64_t scounters[SCNT_MAX]; 1587 u_int64_t pcounters[2][2][3]; 1588 u_int64_t bcounters[2][2]; 1589 u_int64_t stateid; 1590 u_int32_t running; 1591 u_int32_t states; 1592 u_int32_t src_nodes; 1593 u_int64_t since __attribute__((aligned(8))); 1594 u_int32_t debug; 1595 u_int32_t hostid; 1596 char ifname[IFNAMSIZ]; 1597 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1598 }; 1599 1600 struct cbq_opts { 1601 u_int32_t minburst; 1602 u_int32_t maxburst; 1603 u_int32_t pktsize; 1604 u_int32_t maxpktsize; 1605 u_int32_t ns_per_byte; 1606 u_int32_t maxidle; 1607 int32_t minidle; 1608 u_int32_t offtime; 1609 u_int32_t flags; 1610 }; 1611 1612 struct priq_opts { 1613 u_int32_t flags; 1614 }; 1615 1616 struct qfq_opts { 1617 u_int32_t flags; 1618 u_int32_t lmax; 1619 }; 1620 1621 struct hfsc_opts { 1622 /* real-time service curve */ 1623 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1624 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1625 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1626 u_int32_t rtsc_fl; /* service curve flags */ 1627 #if !defined(__LP64__) 1628 u_int32_t _pad; 1629 #endif /* !__LP64__ */ 1630 /* link-sharing service curve */ 1631 u_int64_t lssc_m1; 1632 u_int64_t lssc_d; 1633 u_int64_t lssc_m2; 1634 u_int32_t lssc_fl; 1635 #if !defined(__LP64__) 1636 u_int32_t __pad; 1637 #endif /* !__LP64__ */ 1638 /* upper-limit service curve */ 1639 u_int64_t ulsc_m1; 1640 u_int64_t ulsc_d; 1641 u_int64_t ulsc_m2; 1642 u_int32_t ulsc_fl; 1643 u_int32_t flags; /* scheduler flags */ 1644 }; 1645 1646 struct fairq_opts { 1647 u_int32_t nbuckets; /* hash buckets */ 1648 u_int32_t flags; 1649 u_int64_t hogs_m1; /* hog detection bandwidth */ 1650 1651 /* link-sharing service curve */ 1652 u_int64_t lssc_m1; 1653 u_int64_t lssc_d; 1654 u_int64_t lssc_m2; 1655 }; 1656 1657 /* bandwidth types */ 1658 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1659 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1660 1661 /* ALTQ rule flags */ 1662 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1663 1664 /* queue rule flags */ 1665 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1666 1667 struct pf_altq { 1668 char ifname[IFNAMSIZ]; 1669 1670 /* discipline-specific state */ 1671 void *altq_disc __attribute__((aligned(8))); 1672 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1673 #if !defined(__LP64__) 1674 u_int32_t _pad[2]; 1675 #endif /* !__LP64__ */ 1676 1677 u_int32_t aflags; /* ALTQ rule flags */ 1678 u_int32_t bwtype; /* bandwidth type */ 1679 1680 /* scheduler spec */ 1681 u_int32_t scheduler; /* scheduler type */ 1682 u_int32_t tbrsize; /* tokenbucket regulator size */ 1683 u_int64_t ifbandwidth; /* interface bandwidth */ 1684 1685 /* queue spec */ 1686 char qname[PF_QNAME_SIZE]; /* queue name */ 1687 char parent[PF_QNAME_SIZE]; /* parent name */ 1688 u_int32_t parent_qid; /* parent queue id */ 1689 u_int32_t qrflags; /* queue rule flags */ 1690 union { 1691 u_int32_t priority; /* priority */ 1692 u_int32_t weight; /* weight */ 1693 }; 1694 u_int32_t qlimit; /* queue size limit */ 1695 u_int32_t flags; /* misc flags */ 1696 #if !defined(__LP64__) 1697 u_int32_t __pad; 1698 #endif /* !__LP64__ */ 1699 u_int64_t bandwidth; /* queue bandwidth */ 1700 union { 1701 struct cbq_opts cbq_opts; 1702 struct priq_opts priq_opts; 1703 struct hfsc_opts hfsc_opts; 1704 struct fairq_opts fairq_opts; 1705 struct qfq_opts qfq_opts; 1706 } pq_u; 1707 1708 u_int32_t qid; /* return value */ 1709 }; 1710 1711 struct pf_tagname { 1712 TAILQ_ENTRY(pf_tagname) entries; 1713 char name[PF_TAG_NAME_SIZE]; 1714 u_int16_t tag; 1715 int ref; 1716 }; 1717 1718 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1719 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1720 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1721 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1722 1723 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1724 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1725 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1726 1727 /* 1728 * ioctl parameter structures 1729 */ 1730 1731 struct pfioc_pooladdr { 1732 u_int32_t action; 1733 u_int32_t ticket; 1734 u_int32_t nr; 1735 u_int32_t r_num; 1736 u_int8_t r_action; 1737 u_int8_t r_last; 1738 u_int8_t af; 1739 char anchor[MAXPATHLEN]; 1740 struct pf_pooladdr addr; 1741 }; 1742 1743 struct pfioc_rule { 1744 u_int32_t action; 1745 u_int32_t ticket; 1746 u_int32_t pool_ticket; 1747 u_int32_t nr; 1748 char anchor[MAXPATHLEN]; 1749 char anchor_call[MAXPATHLEN]; 1750 struct pf_rule rule; 1751 }; 1752 1753 struct pfioc_natlook { 1754 struct pf_addr saddr; 1755 struct pf_addr daddr; 1756 struct pf_addr rsaddr; 1757 struct pf_addr rdaddr; 1758 union pf_state_xport sxport; 1759 union pf_state_xport dxport; 1760 union pf_state_xport rsxport; 1761 union pf_state_xport rdxport; 1762 sa_family_t af; 1763 u_int8_t proto; 1764 u_int8_t proto_variant; 1765 u_int8_t direction; 1766 }; 1767 1768 struct pfioc_state { 1769 struct pfsync_state state; 1770 }; 1771 1772 struct pfioc_src_node_kill { 1773 /* XXX returns the number of src nodes killed in psnk_af */ 1774 sa_family_t psnk_af; 1775 struct pf_rule_addr psnk_src; 1776 struct pf_rule_addr psnk_dst; 1777 }; 1778 1779 struct pfioc_state_addr_kill { 1780 struct pf_addr_wrap addr; 1781 u_int8_t reserved_[3]; 1782 u_int8_t neg; 1783 union pf_rule_xport xport; 1784 }; 1785 1786 struct pfioc_state_kill { 1787 /* XXX returns the number of states killed in psk_af */ 1788 sa_family_t psk_af; 1789 u_int8_t psk_proto; 1790 u_int8_t psk_proto_variant; 1791 u_int8_t _pad; 1792 struct pfioc_state_addr_kill psk_src; 1793 struct pfioc_state_addr_kill psk_dst; 1794 char psk_ifname[IFNAMSIZ]; 1795 }; 1796 1797 struct pfioc_states { 1798 int ps_len; 1799 union { 1800 caddr_t psu_buf; 1801 struct pfsync_state *psu_states; 1802 } ps_u __attribute__((aligned(8))); 1803 #define ps_buf ps_u.psu_buf 1804 #define ps_states ps_u.psu_states 1805 }; 1806 1807 #ifdef KERNEL 1808 struct pfioc_states_32 { 1809 int ps_len; 1810 union { 1811 user32_addr_t psu_buf; 1812 user32_addr_t psu_states; 1813 } ps_u __attribute__((aligned(8))); 1814 }; 1815 1816 struct pfioc_states_64 { 1817 int ps_len; 1818 union { 1819 user64_addr_t psu_buf; 1820 user64_addr_t psu_states; 1821 } ps_u __attribute__((aligned(8))); 1822 }; 1823 #endif /* KERNEL */ 1824 1825 #define PFTOK_PROCNAME_LEN 64 1826 #pragma pack(1) 1827 struct pfioc_token { 1828 u_int64_t token_value; 1829 u_int64_t timestamp; 1830 pid_t pid; 1831 char proc_name[PFTOK_PROCNAME_LEN]; 1832 }; 1833 #pragma pack() 1834 1835 struct pfioc_kernel_token { 1836 SLIST_ENTRY(pfioc_kernel_token) next; 1837 struct pfioc_token token; 1838 }; 1839 1840 struct pfioc_remove_token { 1841 u_int64_t token_value; 1842 u_int64_t refcount; 1843 }; 1844 1845 struct pfioc_tokens { 1846 int size; 1847 union { 1848 caddr_t pgtu_buf; 1849 struct pfioc_token *pgtu_tokens; 1850 } pgt_u __attribute__((aligned(8))); 1851 #define pgt_buf pgt_u.pgtu_buf 1852 #define pgt_tokens pgt_u.pgtu_tokens 1853 }; 1854 1855 #ifdef KERNEL 1856 struct pfioc_tokens_32 { 1857 int size; 1858 union { 1859 user32_addr_t pgtu_buf; 1860 user32_addr_t pgtu_tokens; 1861 } pgt_u __attribute__((aligned(8))); 1862 }; 1863 1864 struct pfioc_tokens_64 { 1865 int size; 1866 union { 1867 user64_addr_t pgtu_buf; 1868 user64_addr_t pgtu_tokens; 1869 } pgt_u __attribute__((aligned(8))); 1870 }; 1871 #endif /* KERNEL */ 1872 1873 1874 struct pfioc_src_nodes { 1875 int psn_len; 1876 union { 1877 caddr_t psu_buf; 1878 struct pf_src_node *psu_src_nodes; 1879 } psn_u __attribute__((aligned(8))); 1880 #define psn_buf psn_u.psu_buf 1881 #define psn_src_nodes psn_u.psu_src_nodes 1882 }; 1883 1884 #ifdef KERNEL 1885 struct pfioc_src_nodes_32 { 1886 int psn_len; 1887 union { 1888 user32_addr_t psu_buf; 1889 user32_addr_t psu_src_nodes; 1890 } psn_u __attribute__((aligned(8))); 1891 }; 1892 1893 struct pfioc_src_nodes_64 { 1894 int psn_len; 1895 union { 1896 user64_addr_t psu_buf; 1897 user64_addr_t psu_src_nodes; 1898 } psn_u __attribute__((aligned(8))); 1899 }; 1900 #endif /* KERNEL */ 1901 1902 struct pfioc_if { 1903 char ifname[IFNAMSIZ]; 1904 }; 1905 1906 struct pfioc_tm { 1907 int timeout; 1908 int seconds; 1909 }; 1910 1911 struct pfioc_limit { 1912 int index; 1913 unsigned limit; 1914 }; 1915 1916 struct pfioc_altq { 1917 u_int32_t action; 1918 u_int32_t ticket; 1919 u_int32_t nr; 1920 struct pf_altq altq __attribute__((aligned(8))); 1921 }; 1922 1923 struct pfioc_qstats { 1924 u_int32_t ticket; 1925 u_int32_t nr; 1926 void *buf __attribute__((aligned(8))); 1927 int nbytes __attribute__((aligned(8))); 1928 u_int8_t scheduler; 1929 }; 1930 1931 struct pfioc_ruleset { 1932 u_int32_t nr; 1933 char path[MAXPATHLEN]; 1934 char name[PF_ANCHOR_NAME_SIZE]; 1935 }; 1936 1937 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1938 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1939 struct pfioc_trans { 1940 int size; /* number of elements */ 1941 int esize; /* size of each element in bytes */ 1942 struct pfioc_trans_e { 1943 int rs_num; 1944 char anchor[MAXPATHLEN]; 1945 u_int32_t ticket; 1946 } *array __attribute__((aligned(8))); 1947 }; 1948 1949 #ifdef KERNEL 1950 struct pfioc_trans_32 { 1951 int size; /* number of elements */ 1952 int esize; /* size of each element in bytes */ 1953 user32_addr_t array __attribute__((aligned(8))); 1954 }; 1955 1956 struct pfioc_trans_64 { 1957 int size; /* number of elements */ 1958 int esize; /* size of each element in bytes */ 1959 user64_addr_t array __attribute__((aligned(8))); 1960 }; 1961 #endif /* KERNEL */ 1962 1963 1964 #define PFR_FLAG_ATOMIC 0x00000001 1965 #define PFR_FLAG_DUMMY 0x00000002 1966 #define PFR_FLAG_FEEDBACK 0x00000004 1967 #define PFR_FLAG_CLSTATS 0x00000008 1968 #define PFR_FLAG_ADDRSTOO 0x00000010 1969 #define PFR_FLAG_REPLACE 0x00000020 1970 #define PFR_FLAG_ALLRSETS 0x00000040 1971 #define PFR_FLAG_ALLMASK 0x0000007F 1972 #ifdef KERNEL 1973 #define PFR_FLAG_USERIOCTL 0x10000000 1974 #endif /* KERNEL */ 1975 1976 struct pfioc_table { 1977 struct pfr_table pfrio_table; 1978 void *pfrio_buffer __attribute__((aligned(8))); 1979 int pfrio_esize __attribute__((aligned(8))); 1980 int pfrio_size; 1981 int pfrio_size2; 1982 int pfrio_nadd; 1983 int pfrio_ndel; 1984 int pfrio_nchange; 1985 int pfrio_flags; 1986 u_int32_t pfrio_ticket; 1987 }; 1988 #define pfrio_exists pfrio_nadd 1989 #define pfrio_nzero pfrio_nadd 1990 #define pfrio_nmatch pfrio_nadd 1991 #define pfrio_naddr pfrio_size2 1992 #define pfrio_setflag pfrio_size2 1993 #define pfrio_clrflag pfrio_nadd 1994 1995 #ifdef KERNEL 1996 struct pfioc_table_32 { 1997 struct pfr_table pfrio_table; 1998 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 1999 int pfrio_esize __attribute__((aligned(8))); 2000 int pfrio_size; 2001 int pfrio_size2; 2002 int pfrio_nadd; 2003 int pfrio_ndel; 2004 int pfrio_nchange; 2005 int pfrio_flags; 2006 u_int32_t pfrio_ticket; 2007 }; 2008 2009 struct pfioc_table_64 { 2010 struct pfr_table pfrio_table; 2011 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2012 int pfrio_esize __attribute__((aligned(8))); 2013 int pfrio_size; 2014 int pfrio_size2; 2015 int pfrio_nadd; 2016 int pfrio_ndel; 2017 int pfrio_nchange; 2018 int pfrio_flags; 2019 u_int32_t pfrio_ticket; 2020 }; 2021 #endif /* KERNEL */ 2022 2023 struct pfioc_iface { 2024 char pfiio_name[IFNAMSIZ]; 2025 void *pfiio_buffer __attribute__((aligned(8))); 2026 int pfiio_esize __attribute__((aligned(8))); 2027 int pfiio_size; 2028 int pfiio_nzero; 2029 int pfiio_flags; 2030 }; 2031 2032 #ifdef KERNEL 2033 struct pfioc_iface_32 { 2034 char pfiio_name[IFNAMSIZ]; 2035 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2036 int pfiio_esize __attribute__((aligned(8))); 2037 int pfiio_size; 2038 int pfiio_nzero; 2039 int pfiio_flags; 2040 }; 2041 2042 struct pfioc_iface_64 { 2043 char pfiio_name[IFNAMSIZ]; 2044 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2045 int pfiio_esize __attribute__((aligned(8))); 2046 int pfiio_size; 2047 int pfiio_nzero; 2048 int pfiio_flags; 2049 }; 2050 #endif /* KERNEL */ 2051 2052 struct pf_ifspeed { 2053 char ifname[IFNAMSIZ]; 2054 u_int64_t baudrate; 2055 }; 2056 2057 /* 2058 * ioctl operations 2059 */ 2060 2061 #define DIOCSTART _IO ('D', 1) 2062 #define DIOCSTOP _IO ('D', 2) 2063 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2064 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2065 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2066 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2067 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2068 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2069 /* XXX cut 10 - 17 */ 2070 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2071 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2072 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2073 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2074 #define DIOCCLRSTATUS _IO ('D', 22) 2075 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2076 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2077 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2078 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2079 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2080 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2081 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2082 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2083 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2084 #define DIOCCLRRULECTRS _IO ('D', 38) 2085 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2086 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2087 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2088 #define DIOCSTARTALTQ _IO ('D', 42) 2089 #define DIOCSTOPALTQ _IO ('D', 43) 2090 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2091 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2092 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2093 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2094 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2095 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2096 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2097 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2098 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2099 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2100 /* XXX cut 55 - 57 */ 2101 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2102 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2103 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2104 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2105 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2106 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2107 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2108 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2109 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2110 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2111 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2112 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2113 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2114 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2115 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2116 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2117 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2118 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2119 #define DIOCOSFPFLUSH _IO('D', 78) 2120 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2121 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2122 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2123 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2124 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2125 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2126 #define DIOCCLRSRCNODES _IO('D', 85) 2127 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2128 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2129 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2130 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2131 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2132 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2133 2134 #ifdef KERNEL 2135 RB_HEAD(pf_src_tree, pf_src_node); 2136 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2137 pf_src_compare); 2138 __private_extern__ struct pf_src_tree tree_src_tracking; 2139 2140 RB_HEAD(pf_state_tree_id, pf_state); 2141 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2142 entry_id, pf_state_compare_id); 2143 __private_extern__ struct pf_state_tree_id tree_id; 2144 __private_extern__ struct pf_state_queue state_list; 2145 2146 TAILQ_HEAD(pf_poolqueue, pf_pool); 2147 __private_extern__ struct pf_poolqueue pf_pools[2]; 2148 __private_extern__ struct pf_palist pf_pabuf; 2149 __private_extern__ u_int32_t ticket_pabuf; 2150 #if PF_ALTQ 2151 TAILQ_HEAD(pf_altqqueue, pf_altq); 2152 __private_extern__ struct pf_altqqueue pf_altqs[2]; 2153 __private_extern__ u_int32_t ticket_altqs_active; 2154 __private_extern__ u_int32_t ticket_altqs_inactive; 2155 __private_extern__ int altqs_inactive_open; 2156 __private_extern__ struct pf_altqqueue *pf_altqs_active; 2157 __private_extern__ struct pf_altqqueue *pf_altqs_inactive; 2158 #endif /* PF_ALTQ */ 2159 __private_extern__ struct pf_poolqueue *pf_pools_active; 2160 __private_extern__ struct pf_poolqueue *pf_pools_inactive; 2161 2162 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2163 struct pf_addr_wrap *); 2164 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2165 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2166 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2167 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2168 2169 __private_extern__ struct pool pf_src_tree_pl, pf_rule_pl; 2170 __private_extern__ struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2171 __private_extern__ struct pool pf_state_scrub_pl; 2172 #if PF_ALTQ 2173 __private_extern__ struct pool pf_altq_pl; 2174 #endif /* PF_ALTQ */ 2175 __private_extern__ struct pool pf_app_state_pl; 2176 2177 __private_extern__ struct thread *pf_purge_thread; 2178 2179 __private_extern__ void pfinit(void); 2180 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2181 __private_extern__ void pf_purge_expired_src_nodes(void); 2182 __private_extern__ void pf_purge_expired_states(u_int32_t); 2183 __private_extern__ void pf_unlink_state(struct pf_state *); 2184 __private_extern__ void pf_free_state(struct pf_state *); 2185 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2186 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2187 struct pf_rule *, struct pf_addr *, sa_family_t); 2188 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2189 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2190 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2191 u_int, int *); 2192 __private_extern__ void pf_print_state(struct pf_state *); 2193 __private_extern__ void pf_print_flags(u_int8_t); 2194 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2195 u_int8_t); 2196 2197 __private_extern__ struct ifnet *sync_ifp; 2198 __private_extern__ struct pf_rule pf_default_rule; 2199 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2200 u_int8_t); 2201 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2202 2203 struct ip_fw_args; 2204 #if INET 2205 __private_extern__ int pf_test(int, struct ifnet *, struct mbuf **, 2206 struct ether_header *, struct ip_fw_args *); 2207 #endif /* INET */ 2208 2209 #if INET6 2210 __private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **, 2211 struct ether_header *, struct ip_fw_args *); 2212 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2213 struct pf_addr *, struct pf_addr *, u_int8_t); 2214 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2215 #endif /* INET6 */ 2216 2217 __private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *, 2218 struct mbuf *, int); 2219 __private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int, 2220 u_short *, u_short *, sa_family_t); 2221 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2222 __private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *, 2223 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2224 struct pf_ruleset *, struct pf_pdesc *); 2225 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2226 struct pf_addr *, struct pf_addr *, sa_family_t); 2227 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2228 struct pf_addr *, sa_family_t); 2229 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2230 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2231 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2232 union pf_state_xport *); 2233 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2234 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2235 2236 __private_extern__ void pf_normalize_init(void); 2237 __private_extern__ int pf_normalize_isempty(void); 2238 __private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, 2239 u_short *, struct pf_pdesc *); 2240 __private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, 2241 u_short *, struct pf_pdesc *); 2242 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, 2243 int, int, void *, struct pf_pdesc *); 2244 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2245 __private_extern__ int pf_normalize_tcp_init(struct mbuf *, int, 2246 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2247 struct pf_state_peer *); 2248 __private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int, 2249 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2250 struct pf_state_peer *, struct pf_state_peer *, int *); 2251 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2252 __private_extern__ void pf_purge_expired_fragments(void); 2253 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2254 struct pfi_kif *); 2255 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2256 struct pf_addr_wrap *); 2257 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2258 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2259 struct pf_state_key *); 2260 __private_extern__ void pfr_initialize(void); 2261 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2262 sa_family_t); 2263 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2264 sa_family_t, u_int64_t, int, int, int); 2265 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2266 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2267 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2268 struct pfi_dynaddr *); 2269 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2270 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2271 char *); 2272 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2273 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2274 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2275 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2276 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2277 int *, int); 2278 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2279 int *, int); 2280 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2281 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2282 int *, int); 2283 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2284 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2285 u_int64_t); 2286 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2287 int, int *, int); 2288 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2289 int, int *, int); 2290 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2291 int, int *, int *, int *, int *, int, u_int32_t); 2292 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2293 int *, int); 2294 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2295 int *, int); 2296 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2297 int, int *, int); 2298 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2299 int, int *, int); 2300 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2301 int); 2302 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2303 int); 2304 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2305 int *, int); 2306 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2307 int, int *, int *, u_int32_t, int); 2308 2309 __private_extern__ struct pfi_kif *pfi_all; 2310 2311 __private_extern__ void pfi_initialize(void); 2312 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2313 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2314 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2315 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2316 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2317 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2318 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2319 sa_family_t); 2320 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2321 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2322 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2323 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2324 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2325 __private_extern__ int pfi_set_flags(const char *, int); 2326 __private_extern__ int pfi_clear_flags(const char *, int); 2327 2328 __private_extern__ u_int16_t pf_tagname2tag(char *); 2329 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2330 __private_extern__ void pf_tag_ref(u_int16_t); 2331 __private_extern__ void pf_tag_unref(u_int16_t); 2332 __private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *, 2333 int, unsigned int, struct pf_pdesc *); 2334 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2335 struct pf_rule **, struct pf_rule **, int *); 2336 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2337 struct pf_rule **, struct pf_rule **, int *); 2338 __private_extern__ u_int32_t pf_qname2qid(char *); 2339 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2340 __private_extern__ void pf_qid_unref(u_int32_t); 2341 2342 __private_extern__ struct pf_status pf_status; 2343 __private_extern__ struct pool pf_frent_pl, pf_frag_pl; 2344 2345 struct pf_pool_limit { 2346 void *pp; 2347 unsigned limit; 2348 }; 2349 __private_extern__ struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2350 2351 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2352 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2353 __private_extern__ int pf_ifaddr_hook(struct ifnet *, unsigned long); 2354 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2355 2356 /* 2357 * The following are defined with "private extern" storage class for 2358 * kernel, and "extern" for user-space. 2359 */ 2360 __private_extern__ struct pf_anchor_global pf_anchors; 2361 __private_extern__ struct pf_anchor pf_main_anchor; 2362 #define pf_main_ruleset pf_main_anchor.ruleset 2363 2364 __private_extern__ int pf_is_enabled; 2365 #define PF_IS_ENABLED (pf_is_enabled != 0) 2366 __private_extern__ u_int32_t pf_hash_seed; 2367 2368 #if PF_ALTQ 2369 __private_extern__ u_int32_t altq_allowed; 2370 #endif /* PF_ALTQ */ 2371 2372 /* these ruleset functions can be linked into userland programs (pfctl) */ 2373 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2374 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2375 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2376 const struct pf_ruleset *, const char *); 2377 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2378 const struct pf_rule *, struct pfioc_rule *); 2379 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2380 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2381 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2382 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2383 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2384 const char *, int, int *); 2385 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2386 __private_extern__ void pf_rs_initialize(void); 2387 2388 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2389 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2390 struct mbuf *, int, const struct tcphdr *); 2391 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2392 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2393 __private_extern__ void pf_osfp_flush(void); 2394 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2395 __private_extern__ void pf_osfp_initialize(void); 2396 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2397 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2398 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2399 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2400 #else /* !KERNEL */ 2401 extern struct pf_anchor_global pf_anchors; 2402 extern struct pf_anchor pf_main_anchor; 2403 #define pf_main_ruleset pf_main_anchor.ruleset 2404 2405 /* these ruleset functions can be linked into userland programs (pfctl) */ 2406 extern int pf_get_ruleset_number(u_int8_t); 2407 extern void pf_init_ruleset(struct pf_ruleset *); 2408 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2409 const char *); 2410 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2411 struct pfioc_rule *); 2412 extern void pf_anchor_remove(struct pf_rule *); 2413 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2414 extern struct pf_anchor *pf_find_anchor(const char *); 2415 extern struct pf_ruleset *pf_find_ruleset(const char *); 2416 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2417 const char *, int, int *); 2418 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2419 extern void pf_rs_initialize(void); 2420 #endif /* !KERNEL */ 2421 2422 #ifdef __cplusplus 2423 } 2424 #endif 2425 #endif /* PF || !KERNEL */ 2426 #endif /* PRIVATE */ 2427 #endif /* _NET_PFVAR_H_ */ 2428