1 /* 2 * Copyright (c) 2007-2015 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 * NAT64 - Copyright (c) 2010 Viagenie Inc. (http://www.viagenie.ca) 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 41 * - Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * - Redistributions in binary form must reproduce the above 44 * copyright notice, this list of conditions and the following 45 * disclaimer in the documentation and/or other materials provided 46 * with the distribution. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 49 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 50 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 51 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 52 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 54 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 55 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 56 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 58 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 59 * POSSIBILITY OF SUCH DAMAGE. 60 * 61 */ 62 63 #ifndef _NET_PFVAR_H_ 64 #define _NET_PFVAR_H_ 65 66 #ifdef PRIVATE 67 /* 68 * XXX 69 * XXX Private interfaces. Do not include this file; use pfctl(8) instead. 70 * XXX 71 */ 72 #if PF || !defined(KERNEL) 73 74 #ifdef __cplusplus 75 extern "C" { 76 #endif 77 78 #include <stdbool.h> 79 #include <sys/param.h> 80 #include <sys/types.h> 81 #include <sys/queue.h> 82 #include <libkern/tree.h> 83 84 #include <net/radix.h> 85 #include <netinet/in.h> 86 #include <net/if_var.h> 87 #ifdef KERNEL 88 #include <kern/kern_types.h> 89 #include <kern/zalloc.h> 90 #include <kern/locks.h> 91 92 #include <machine/endian.h> 93 #include <sys/systm.h> 94 95 #if BYTE_ORDER == BIG_ENDIAN 96 #define htobe64(x) (x) 97 #else /* LITTLE ENDIAN */ 98 #define htobe64(x) __DARWIN_OSSwapInt64(x) 99 #endif /* LITTLE_ENDIAN */ 100 101 #define be64toh(x) htobe64(x) 102 103 extern lck_rw_t *pf_perim_lock; 104 extern lck_mtx_t *pf_lock; 105 106 struct pool { 107 struct zone *pool_zone; /* pointer to backend zone */ 108 const char *pool_name; /* name of pool */ 109 unsigned int pool_count; /* # of outstanding elements */ 110 unsigned int pool_hiwat; /* high watermark */ 111 unsigned int pool_limit; /* hard limit */ 112 unsigned int pool_fails; /* # of failed allocs due to limit */ 113 }; 114 115 #define PR_NOWAIT FALSE 116 #define PR_WAITOK TRUE 117 118 __private_extern__ void pool_init(struct pool *, size_t, unsigned int, 119 unsigned int, int, const char *, void *); 120 __private_extern__ void pool_destroy(struct pool *); 121 __private_extern__ void pool_sethiwat(struct pool *, int); 122 __private_extern__ void pool_sethardlimit(struct pool *, int, 123 const char *, int); 124 __private_extern__ void *pool_get(struct pool *, int); 125 __private_extern__ void pool_put(struct pool *, void *); 126 __private_extern__ u_int64_t pf_time_second(void); 127 __private_extern__ u_int64_t pf_calendar_time_second(void); 128 #endif /* KERNEL */ 129 130 union sockaddr_union { 131 struct sockaddr sa; 132 struct sockaddr_in sin; 133 struct sockaddr_in6 sin6; 134 }; 135 136 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 137 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 138 139 #define PF_MD5_DIGEST_LENGTH 16 140 #ifdef MD5_DIGEST_LENGTH 141 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH 142 #error 143 #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */ 144 #endif /* MD5_DIGEST_LENGTH */ 145 146 #ifdef KERNEL 147 struct ip; 148 struct ip6_hdr; 149 struct tcphdr; 150 struct pf_grev1_hdr; 151 struct pf_esp_hdr; 152 #endif /* KERNEL */ 153 154 #define PF_GRE_PPTP_VARIANT 0x01 155 156 enum { PF_INOUT, PF_IN, PF_OUT }; 157 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 158 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, 159 PF_DUMMYNET, PF_NODUMMYNET, PF_NAT64, PF_NONAT64 }; 160 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 161 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET, 162 PF_RULESET_MAX }; 163 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 164 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 165 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 166 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 167 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 168 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 169 enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 170 171 /* 172 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 173 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 174 */ 175 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 176 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 177 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 178 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 179 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, 180 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, 181 PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 182 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 183 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 184 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED }; 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 sa_family_t af; 548 }; 549 550 551 /* A packed Operating System description for fingerprinting */ 552 typedef u_int32_t pf_osfp_t; 553 #define PF_OSFP_ANY ((pf_osfp_t)0) 554 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 555 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 556 557 struct pf_osfp_entry { 558 SLIST_ENTRY(pf_osfp_entry) fp_entry; 559 #if !defined(__LP64__) 560 u_int32_t _pad; 561 #endif /* !__LP64__ */ 562 pf_osfp_t fp_os; 563 int fp_enflags; 564 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 565 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 566 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 567 #define PF_OSFP_LEN 32 568 char fp_class_nm[PF_OSFP_LEN]; 569 char fp_version_nm[PF_OSFP_LEN]; 570 char fp_subtype_nm[PF_OSFP_LEN]; 571 }; 572 #define PF_OSFP_ENTRY_EQ(a, b) \ 573 ((a)->fp_os == (b)->fp_os && \ 574 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 575 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 576 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 577 578 /* handle pf_osfp_t packing */ 579 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 580 #define _FP_UNUSED_BITS 1 581 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 582 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 583 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 584 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 585 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 586 ((1 << _FP_CLASS_BITS) - 1); \ 587 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 588 ((1 << _FP_VERSION_BITS) - 1);\ 589 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 590 } while (0) 591 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 592 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 593 + _FP_SUBTYPE_BITS); \ 594 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 595 _FP_SUBTYPE_BITS; \ 596 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 597 } while (0) 598 599 /* the fingerprint of an OSes TCP SYN packet */ 600 typedef u_int64_t pf_tcpopts_t; 601 struct pf_os_fingerprint { 602 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 603 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 604 u_int16_t fp_wsize; /* TCP window size */ 605 u_int16_t fp_psize; /* ip->ip_len */ 606 u_int16_t fp_mss; /* TCP MSS */ 607 u_int16_t fp_flags; 608 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 609 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 610 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 611 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 612 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 613 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 614 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 615 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 616 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 617 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 618 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 619 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 620 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 621 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 622 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 623 u_int8_t fp_optcnt; /* TCP option count */ 624 u_int8_t fp_wscale; /* TCP window scaling */ 625 u_int8_t fp_ttl; /* IPv4 TTL */ 626 #define PF_OSFP_MAXTTL_OFFSET 40 627 /* TCP options packing */ 628 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 629 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 630 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 631 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 632 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 633 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 634 #define PF_OSFP_MAX_OPTS \ 635 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 636 / PF_OSFP_TCPOPT_BITS 637 638 SLIST_ENTRY(pf_os_fingerprint) fp_next; 639 }; 640 641 struct pf_osfp_ioctl { 642 struct pf_osfp_entry fp_os; 643 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 644 u_int16_t fp_wsize; /* TCP window size */ 645 u_int16_t fp_psize; /* ip->ip_len */ 646 u_int16_t fp_mss; /* TCP MSS */ 647 u_int16_t fp_flags; 648 u_int8_t fp_optcnt; /* TCP option count */ 649 u_int8_t fp_wscale; /* TCP window scaling */ 650 u_int8_t fp_ttl; /* IPv4 TTL */ 651 652 int fp_getnum; /* DIOCOSFPGET number */ 653 }; 654 655 656 union pf_rule_ptr { 657 struct pf_rule *ptr __attribute__((aligned(8))); 658 u_int32_t nr __attribute__((aligned(8))); 659 } __attribute__((aligned(8))); 660 661 #define PF_ANCHOR_NAME_SIZE 64 662 663 struct pf_rule { 664 struct pf_rule_addr src; 665 struct pf_rule_addr dst; 666 #define PF_SKIP_IFP 0 667 #define PF_SKIP_DIR 1 668 #define PF_SKIP_AF 2 669 #define PF_SKIP_PROTO 3 670 #define PF_SKIP_SRC_ADDR 4 671 #define PF_SKIP_SRC_PORT 5 672 #define PF_SKIP_DST_ADDR 6 673 #define PF_SKIP_DST_PORT 7 674 #define PF_SKIP_COUNT 8 675 union pf_rule_ptr skip[PF_SKIP_COUNT]; 676 #define PF_RULE_LABEL_SIZE 64 677 char label[PF_RULE_LABEL_SIZE]; 678 #define PF_QNAME_SIZE 64 679 char ifname[IFNAMSIZ]; 680 char qname[PF_QNAME_SIZE]; 681 char pqname[PF_QNAME_SIZE]; 682 #define PF_TAG_NAME_SIZE 64 683 char tagname[PF_TAG_NAME_SIZE]; 684 char match_tagname[PF_TAG_NAME_SIZE]; 685 686 char overload_tblname[PF_TABLE_NAME_SIZE]; 687 688 TAILQ_ENTRY(pf_rule) entries; 689 #if !defined(__LP64__) 690 u_int32_t _pad[2]; 691 #endif /* !__LP64__ */ 692 struct pf_pool rpool; 693 694 u_int64_t evaluations; 695 u_int64_t packets[2]; 696 u_int64_t bytes[2]; 697 698 u_int64_t ticket; 699 #define PF_OWNER_NAME_SIZE 64 700 char owner[PF_OWNER_NAME_SIZE]; 701 u_int32_t priority; 702 703 #ifdef KERNEL 704 struct pfi_kif *kif __attribute__((aligned(8))); 705 #else /* !KERNEL */ 706 void *kif __attribute__((aligned(8))); 707 #endif /* !KERNEL */ 708 struct pf_anchor *anchor __attribute__((aligned(8))); 709 #ifdef KERNEL 710 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 711 #else /* !KERNEL */ 712 void *overload_tbl __attribute__((aligned(8))); 713 #endif /* !KERNEL */ 714 715 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 716 717 unsigned int rtableid; 718 u_int32_t timeout[PFTM_MAX]; 719 u_int32_t states; 720 u_int32_t max_states; 721 u_int32_t src_nodes; 722 u_int32_t max_src_nodes; 723 u_int32_t max_src_states; 724 u_int32_t max_src_conn; 725 struct { 726 u_int32_t limit; 727 u_int32_t seconds; 728 } max_src_conn_rate; 729 u_int32_t qid; 730 u_int32_t pqid; 731 u_int32_t rt_listid; 732 u_int32_t nr; 733 u_int32_t prob; 734 uid_t cuid; 735 pid_t cpid; 736 737 u_int16_t return_icmp; 738 u_int16_t return_icmp6; 739 u_int16_t max_mss; 740 u_int16_t tag; 741 u_int16_t match_tag; 742 743 struct pf_rule_uid uid; 744 struct pf_rule_gid gid; 745 746 u_int32_t rule_flag; 747 u_int8_t action; 748 u_int8_t direction; 749 u_int8_t log; 750 u_int8_t logif; 751 u_int8_t quick; 752 u_int8_t ifnot; 753 u_int8_t match_tag_not; 754 u_int8_t natpass; 755 756 #define PF_STATE_NORMAL 0x1 757 #define PF_STATE_MODULATE 0x2 758 #define PF_STATE_SYNPROXY 0x3 759 u_int8_t keep_state; 760 sa_family_t af; 761 u_int8_t proto; 762 u_int8_t type; 763 u_int8_t code; 764 u_int8_t flags; 765 u_int8_t flagset; 766 u_int8_t min_ttl; 767 u_int8_t allow_opts; 768 u_int8_t rt; 769 u_int8_t return_ttl; 770 771 /* service class categories */ 772 #define SCIDX_MASK 0x0f 773 #define SC_BE 0x10 774 #define SC_BK_SYS 0x11 775 #define SC_BK 0x12 776 #define SC_RD 0x13 777 #define SC_OAM 0x14 778 #define SC_AV 0x15 779 #define SC_RV 0x16 780 #define SC_VI 0x17 781 #define SC_VO 0x18 782 #define SC_CTL 0x19 783 784 /* diffserve code points */ 785 #define DSCP_MASK 0xfc 786 #define DSCP_CUMASK 0x03 787 #define DSCP_EF 0xb8 788 #define DSCP_AF11 0x28 789 #define DSCP_AF12 0x30 790 #define DSCP_AF13 0x38 791 #define DSCP_AF21 0x48 792 #define DSCP_AF22 0x50 793 #define DSCP_AF23 0x58 794 #define DSCP_AF31 0x68 795 #define DSCP_AF32 0x70 796 #define DSCP_AF33 0x78 797 #define DSCP_AF41 0x88 798 #define DSCP_AF42 0x90 799 #define DSCP_AF43 0x98 800 #define AF_CLASSMASK 0xe0 801 #define AF_DROPPRECMASK 0x18 802 u_int8_t tos; 803 u_int8_t anchor_relative; 804 u_int8_t anchor_wildcard; 805 806 #define PF_FLUSH 0x01 807 #define PF_FLUSH_GLOBAL 0x02 808 u_int8_t flush; 809 810 u_int8_t proto_variant; 811 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 812 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 813 u_int32_t dnpipe; 814 u_int32_t dntype; 815 }; 816 817 /* pf device identifiers */ 818 #define PFDEV_PF 0 819 #define PFDEV_PFM 1 820 #define PFDEV_MAX 2 821 822 /* rule flags */ 823 #define PFRULE_DROP 0x0000 824 #define PFRULE_RETURNRST 0x0001 825 #define PFRULE_FRAGMENT 0x0002 826 #define PFRULE_RETURNICMP 0x0004 827 #define PFRULE_RETURN 0x0008 828 #define PFRULE_NOSYNC 0x0010 829 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 830 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 831 832 /* scrub flags */ 833 #define PFRULE_NODF 0x0100 834 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 835 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 836 #define PFRULE_RANDOMID 0x0800 837 #define PFRULE_REASSEMBLE_TCP 0x1000 838 839 /* rule flags for TOS/DSCP/service class differentiation */ 840 #define PFRULE_TOS 0x2000 841 #define PFRULE_DSCP 0x4000 842 #define PFRULE_SC 0x8000 843 844 /* rule flags again */ 845 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 846 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 847 848 #define PFSTATE_HIWAT 10000 /* default state table size */ 849 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 850 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 851 852 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 853 854 enum pf_extmap { 855 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 856 PF_EXTMAP_AD, /* Address-dependent mapping */ 857 PF_EXTMAP_EI /* Endpoint-independent mapping */ 858 }; 859 860 enum pf_extfilter { 861 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 862 PF_EXTFILTER_AD, /* Address-dependent filtering */ 863 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 864 }; 865 866 struct pf_threshold { 867 u_int32_t limit; 868 #define PF_THRESHOLD_MULT 1000 869 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 870 u_int32_t seconds; 871 u_int32_t count; 872 u_int32_t last; 873 }; 874 875 struct pf_src_node { 876 RB_ENTRY(pf_src_node) entry; 877 struct pf_addr addr; 878 struct pf_addr raddr; 879 union pf_rule_ptr rule; 880 #ifdef KERNEL 881 struct pfi_kif *kif; 882 #else /* !KERNEL */ 883 void *kif; 884 #endif /* !KERNEL */ 885 u_int64_t bytes[2]; 886 u_int64_t packets[2]; 887 u_int32_t states; 888 u_int32_t conn; 889 struct pf_threshold conn_rate; 890 u_int64_t creation; 891 u_int64_t expire; 892 sa_family_t af; 893 u_int8_t ruletype; 894 }; 895 896 #define PFSNODE_HIWAT 10000 /* default source node table size */ 897 898 #ifdef KERNEL 899 struct pf_state_scrub { 900 struct timeval pfss_last; /* time received last packet */ 901 u_int32_t pfss_tsecr; /* last echoed timestamp */ 902 u_int32_t pfss_tsval; /* largest timestamp */ 903 u_int32_t pfss_tsval0; /* original timestamp */ 904 u_int16_t pfss_flags; 905 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 906 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 907 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 908 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 909 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 910 u_int8_t pfss_ttl; /* stashed TTL */ 911 u_int8_t pad; 912 u_int32_t pfss_ts_mod; /* timestamp modulation */ 913 }; 914 #endif /* KERNEL */ 915 916 union pf_state_xport { 917 u_int16_t port; 918 u_int16_t call_id; 919 u_int32_t spi; 920 }; 921 922 struct pf_state_host { 923 struct pf_addr addr; 924 union pf_state_xport xport; 925 }; 926 927 #ifdef KERNEL 928 struct pf_state_peer { 929 u_int32_t seqlo; /* Max sequence number sent */ 930 u_int32_t seqhi; /* Max the other end ACKd + win */ 931 u_int32_t seqdiff; /* Sequence number modulator */ 932 u_int16_t max_win; /* largest window (pre scaling) */ 933 u_int8_t state; /* active state level */ 934 u_int8_t wscale; /* window scaling factor */ 935 u_int16_t mss; /* Maximum segment size option */ 936 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 937 struct pf_state_scrub *scrub; /* state is scrubbed */ 938 u_int8_t pad[3]; 939 }; 940 941 TAILQ_HEAD(pf_state_queue, pf_state); 942 943 struct pf_state; 944 struct pf_pdesc; 945 struct pf_app_state; 946 947 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 948 struct pfi_kif *); 949 950 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 951 952 struct pf_pptp_state { 953 struct pf_state *grev1_state; 954 }; 955 956 struct pf_grev1_state { 957 struct pf_state *pptp_state; 958 }; 959 960 struct pf_ike_state { 961 u_int64_t cookie; 962 }; 963 964 struct pf_app_state { 965 pf_app_handler handler; 966 pf_app_compare compare_lan_ext; 967 pf_app_compare compare_ext_gwy; 968 union { 969 struct pf_pptp_state pptp; 970 struct pf_grev1_state grev1; 971 struct pf_ike_state ike; 972 } u; 973 }; 974 975 /* keep synced with struct pf_state, used in RB_FIND */ 976 struct pf_state_key_cmp { 977 struct pf_state_host lan; 978 struct pf_state_host gwy; 979 struct pf_state_host ext_lan; 980 struct pf_state_host ext_gwy; 981 sa_family_t af_lan; 982 sa_family_t af_gwy; 983 u_int8_t proto; 984 u_int8_t direction; 985 u_int8_t proto_variant; 986 struct pf_app_state *app_state; 987 }; 988 989 TAILQ_HEAD(pf_statelist, pf_state); 990 991 struct pf_state_key { 992 struct pf_state_host lan; 993 struct pf_state_host gwy; 994 struct pf_state_host ext_lan; 995 struct pf_state_host ext_gwy; 996 sa_family_t af_lan; 997 sa_family_t af_gwy; 998 u_int8_t proto; 999 u_int8_t direction; 1000 u_int8_t proto_variant; 1001 struct pf_app_state *app_state; 1002 u_int32_t flowsrc; 1003 u_int32_t flowhash; 1004 1005 RB_ENTRY(pf_state_key) entry_lan_ext; 1006 RB_ENTRY(pf_state_key) entry_ext_gwy; 1007 struct pf_statelist states; 1008 u_int32_t refcnt; 1009 }; 1010 1011 1012 /* keep synced with struct pf_state, used in RB_FIND */ 1013 struct pf_state_cmp { 1014 u_int64_t id; 1015 u_int32_t creatorid; 1016 u_int32_t pad; 1017 }; 1018 1019 /* flowhash key (12-bytes multiple for performance) */ 1020 struct pf_flowhash_key { 1021 struct pf_state_host ap1; /* address+port blob 1 */ 1022 struct pf_state_host ap2; /* address+port blob 2 */ 1023 u_int32_t af; 1024 u_int32_t proto; 1025 }; 1026 #endif /* KERNEL */ 1027 1028 struct hook_desc; 1029 TAILQ_HEAD(hook_desc_head, hook_desc); 1030 1031 #ifdef KERNEL 1032 struct pf_state { 1033 u_int64_t id; 1034 u_int32_t creatorid; 1035 u_int32_t pad; 1036 1037 TAILQ_ENTRY(pf_state) entry_list; 1038 TAILQ_ENTRY(pf_state) next; 1039 RB_ENTRY(pf_state) entry_id; 1040 struct pf_state_peer src; 1041 struct pf_state_peer dst; 1042 union pf_rule_ptr rule; 1043 union pf_rule_ptr anchor; 1044 union pf_rule_ptr nat_rule; 1045 struct pf_addr rt_addr; 1046 struct hook_desc_head unlink_hooks; 1047 struct pf_state_key *state_key; 1048 struct pfi_kif *kif; 1049 struct pfi_kif *rt_kif; 1050 struct pf_src_node *src_node; 1051 struct pf_src_node *nat_src_node; 1052 u_int64_t packets[2]; 1053 u_int64_t bytes[2]; 1054 u_int64_t creation; 1055 u_int64_t expire; 1056 u_int64_t pfsync_time; 1057 u_int16_t tag; 1058 u_int8_t log; 1059 u_int8_t allow_opts; 1060 u_int8_t timeout; 1061 u_int8_t sync_flags; 1062 }; 1063 #endif /* KERNEL */ 1064 1065 #define PFSTATE_NOSYNC 0x01 1066 #define PFSTATE_FROMSYNC 0x02 1067 #define PFSTATE_STALE 0x04 1068 1069 #define __packed __attribute__((__packed__)) 1070 1071 /* 1072 * Unified state structures for pulling states out of the kernel 1073 * used by pfsync(4) and the pf(4) ioctl. 1074 */ 1075 struct pfsync_state_scrub { 1076 u_int16_t pfss_flags; 1077 u_int8_t pfss_ttl; /* stashed TTL */ 1078 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1079 u_int8_t scrub_flag; 1080 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1081 } __packed; 1082 1083 struct pfsync_state_host { 1084 struct pf_addr addr; 1085 union pf_state_xport xport; 1086 u_int16_t pad[2]; 1087 } __packed; 1088 1089 struct pfsync_state_peer { 1090 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1091 u_int32_t seqlo; /* Max sequence number sent */ 1092 u_int32_t seqhi; /* Max the other end ACKd + win */ 1093 u_int32_t seqdiff; /* Sequence number modulator */ 1094 u_int16_t max_win; /* largest window (pre scaling) */ 1095 u_int16_t mss; /* Maximum segment size option */ 1096 u_int8_t state; /* active state level */ 1097 u_int8_t wscale; /* window scaling factor */ 1098 u_int8_t pad[6]; 1099 } __packed; 1100 1101 struct pfsync_state { 1102 u_int32_t id[2]; 1103 char ifname[IFNAMSIZ]; 1104 struct pfsync_state_host lan; 1105 struct pfsync_state_host gwy; 1106 struct pfsync_state_host ext_lan; 1107 struct pfsync_state_host ext_gwy; 1108 struct pfsync_state_peer src; 1109 struct pfsync_state_peer dst; 1110 struct pf_addr rt_addr; 1111 struct hook_desc_head unlink_hooks; 1112 #if !defined(__LP64__) 1113 u_int32_t _pad[2]; 1114 #endif /* !__LP64__ */ 1115 u_int32_t rule; 1116 u_int32_t anchor; 1117 u_int32_t nat_rule; 1118 u_int64_t creation; 1119 u_int64_t expire; 1120 u_int32_t packets[2][2]; 1121 u_int32_t bytes[2][2]; 1122 u_int32_t creatorid; 1123 u_int16_t tag; 1124 sa_family_t af_lan; 1125 sa_family_t af_gwy; 1126 u_int8_t proto; 1127 u_int8_t direction; 1128 u_int8_t log; 1129 u_int8_t allow_opts; 1130 u_int8_t timeout; 1131 u_int8_t sync_flags; 1132 u_int8_t updates; 1133 u_int8_t proto_variant; 1134 u_int8_t __pad; 1135 u_int32_t flowhash; 1136 } __packed; 1137 1138 #define PFSYNC_FLAG_COMPRESS 0x01 1139 #define PFSYNC_FLAG_STALE 0x02 1140 #define PFSYNC_FLAG_SRCNODE 0x04 1141 #define PFSYNC_FLAG_NATSRCNODE 0x08 1142 1143 #ifdef KERNEL 1144 /* for copies to/from userland via pf_ioctl() */ 1145 #define pf_state_peer_to_pfsync(s, d) do { \ 1146 (d)->seqlo = (s)->seqlo; \ 1147 (d)->seqhi = (s)->seqhi; \ 1148 (d)->seqdiff = (s)->seqdiff; \ 1149 (d)->max_win = (s)->max_win; \ 1150 (d)->mss = (s)->mss; \ 1151 (d)->state = (s)->state; \ 1152 (d)->wscale = (s)->wscale; \ 1153 if ((s)->scrub) { \ 1154 (d)->scrub.pfss_flags = \ 1155 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1156 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1157 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1158 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1159 } \ 1160 } while (0) 1161 1162 #define pf_state_peer_from_pfsync(s, d) do { \ 1163 (d)->seqlo = (s)->seqlo; \ 1164 (d)->seqhi = (s)->seqhi; \ 1165 (d)->seqdiff = (s)->seqdiff; \ 1166 (d)->max_win = (s)->max_win; \ 1167 (d)->mss = ntohs((s)->mss); \ 1168 (d)->state = (s)->state; \ 1169 (d)->wscale = (s)->wscale; \ 1170 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1171 (d)->scrub != NULL) { \ 1172 (d)->scrub->pfss_flags = \ 1173 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1174 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1175 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1176 } \ 1177 } while (0) 1178 #endif /* KERNEL */ 1179 1180 #define pf_state_counter_to_pfsync(s, d) do { \ 1181 d[0] = (s>>32)&0xffffffff; \ 1182 d[1] = s&0xffffffff; \ 1183 } while (0) 1184 1185 #define pf_state_counter_from_pfsync(s) \ 1186 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1187 1188 1189 1190 TAILQ_HEAD(pf_rulequeue, pf_rule); 1191 1192 struct pf_anchor; 1193 1194 struct pf_ruleset { 1195 struct { 1196 struct pf_rulequeue queues[2]; 1197 struct { 1198 struct pf_rulequeue *ptr; 1199 struct pf_rule **ptr_array; 1200 u_int32_t rcount; 1201 u_int32_t ticket; 1202 int open; 1203 } active, inactive; 1204 } rules[PF_RULESET_MAX]; 1205 struct pf_anchor *anchor; 1206 u_int32_t tticket; 1207 int tables; 1208 int topen; 1209 }; 1210 1211 RB_HEAD(pf_anchor_global, pf_anchor); 1212 RB_HEAD(pf_anchor_node, pf_anchor); 1213 struct pf_anchor { 1214 RB_ENTRY(pf_anchor) entry_global; 1215 RB_ENTRY(pf_anchor) entry_node; 1216 struct pf_anchor *parent; 1217 struct pf_anchor_node children; 1218 char name[PF_ANCHOR_NAME_SIZE]; 1219 char path[MAXPATHLEN]; 1220 struct pf_ruleset ruleset; 1221 int refcnt; /* anchor rules */ 1222 int match; 1223 char owner[PF_OWNER_NAME_SIZE]; 1224 }; 1225 #ifdef KERNEL 1226 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1227 pf_anchor_compare); 1228 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1229 pf_anchor_compare); 1230 #else /* !KERNEL */ 1231 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1232 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1233 #endif /* !KERNEL */ 1234 1235 #define PF_RESERVED_ANCHOR "_pf" 1236 1237 #define PFR_TFLAG_PERSIST 0x00000001 1238 #define PFR_TFLAG_CONST 0x00000002 1239 #define PFR_TFLAG_ACTIVE 0x00000004 1240 #define PFR_TFLAG_INACTIVE 0x00000008 1241 #define PFR_TFLAG_REFERENCED 0x00000010 1242 #define PFR_TFLAG_REFDANCHOR 0x00000020 1243 #define PFR_TFLAG_USRMASK 0x00000003 1244 #define PFR_TFLAG_SETMASK 0x0000003C 1245 #define PFR_TFLAG_ALLMASK 0x0000003F 1246 1247 struct pfr_table { 1248 char pfrt_anchor[MAXPATHLEN]; 1249 char pfrt_name[PF_TABLE_NAME_SIZE]; 1250 u_int32_t pfrt_flags; 1251 u_int8_t pfrt_fback; 1252 }; 1253 1254 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1255 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1256 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1257 1258 struct pfr_addr { 1259 union { 1260 struct in_addr _pfra_ip4addr; 1261 struct in6_addr _pfra_ip6addr; 1262 } pfra_u; 1263 u_int8_t pfra_af; 1264 u_int8_t pfra_net; 1265 u_int8_t pfra_not; 1266 u_int8_t pfra_fback; 1267 }; 1268 #define pfra_ip4addr pfra_u._pfra_ip4addr 1269 #define pfra_ip6addr pfra_u._pfra_ip6addr 1270 1271 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1272 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1273 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1274 1275 struct pfr_astats { 1276 struct pfr_addr pfras_a; 1277 #if !defined(__LP64__) 1278 u_int32_t _pad; 1279 #endif /* !__LP64__ */ 1280 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1281 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1282 u_int64_t pfras_tzero; 1283 }; 1284 1285 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1286 1287 struct pfr_tstats { 1288 struct pfr_table pfrts_t; 1289 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1290 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1291 u_int64_t pfrts_match; 1292 u_int64_t pfrts_nomatch; 1293 u_int64_t pfrts_tzero; 1294 int pfrts_cnt; 1295 int pfrts_refcnt[PFR_REFCNT_MAX]; 1296 #if !defined(__LP64__) 1297 u_int32_t _pad; 1298 #endif /* !__LP64__ */ 1299 }; 1300 #define pfrts_name pfrts_t.pfrt_name 1301 #define pfrts_flags pfrts_t.pfrt_flags 1302 1303 #ifdef KERNEL 1304 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1305 struct pfr_kentry { 1306 struct radix_node pfrke_node[2]; 1307 union sockaddr_union pfrke_sa; 1308 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1309 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1310 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1311 u_int64_t pfrke_tzero; 1312 u_int8_t pfrke_af; 1313 u_int8_t pfrke_net; 1314 u_int8_t pfrke_not; 1315 u_int8_t pfrke_mark; 1316 u_int8_t pfrke_intrpool; 1317 }; 1318 1319 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1320 RB_HEAD(pfr_ktablehead, pfr_ktable); 1321 struct pfr_ktable { 1322 struct pfr_tstats pfrkt_ts; 1323 RB_ENTRY(pfr_ktable) pfrkt_tree; 1324 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1325 struct radix_node_head *pfrkt_ip4; 1326 struct radix_node_head *pfrkt_ip6; 1327 struct pfr_ktable *pfrkt_shadow; 1328 struct pfr_ktable *pfrkt_root; 1329 struct pf_ruleset *pfrkt_rs; 1330 u_int64_t pfrkt_larg; 1331 u_int32_t pfrkt_nflags; 1332 }; 1333 #define pfrkt_t pfrkt_ts.pfrts_t 1334 #define pfrkt_name pfrkt_t.pfrt_name 1335 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1336 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1337 #define pfrkt_flags pfrkt_t.pfrt_flags 1338 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1339 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1340 #define pfrkt_packets pfrkt_ts.pfrts_packets 1341 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1342 #define pfrkt_match pfrkt_ts.pfrts_match 1343 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1344 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1345 1346 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1347 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1348 entry_lan_ext, pf_state_compare_lan_ext); 1349 1350 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1351 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1352 entry_ext_gwy, pf_state_compare_ext_gwy); 1353 1354 RB_HEAD(pfi_ifhead, pfi_kif); 1355 1356 /* state tables */ 1357 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1358 extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 1359 1360 /* keep synced with pfi_kif, used in RB_FIND */ 1361 struct pfi_kif_cmp { 1362 char pfik_name[IFNAMSIZ]; 1363 }; 1364 1365 struct pfi_kif { 1366 char pfik_name[IFNAMSIZ]; 1367 RB_ENTRY(pfi_kif) pfik_tree; 1368 u_int64_t pfik_packets[2][2][2]; 1369 u_int64_t pfik_bytes[2][2][2]; 1370 u_int64_t pfik_tzero; 1371 int pfik_flags; 1372 void *pfik_ah_cookie; 1373 struct ifnet *pfik_ifp; 1374 int pfik_states; 1375 int pfik_rules; 1376 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1377 }; 1378 1379 enum pfi_kif_refs { 1380 PFI_KIF_REF_NONE, 1381 PFI_KIF_REF_STATE, 1382 PFI_KIF_REF_RULE 1383 }; 1384 1385 struct pfi_uif { 1386 #else /* !KERNEL */ 1387 struct pfi_kif { 1388 #endif /* !KERNEL */ 1389 char pfik_name[IFNAMSIZ]; 1390 u_int64_t pfik_packets[2][2][2]; 1391 u_int64_t pfik_bytes[2][2][2]; 1392 u_int64_t pfik_tzero; 1393 int pfik_flags; 1394 int pfik_states; 1395 int pfik_rules; 1396 #if !defined(__LP64__) 1397 u_int32_t _pad; 1398 #endif /* !__LP64__ */ 1399 }; 1400 1401 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1402 1403 #ifdef KERNEL 1404 struct pf_pdesc { 1405 struct { 1406 int done; 1407 uid_t uid; 1408 gid_t gid; 1409 pid_t pid; 1410 } lookup; 1411 u_int64_t tot_len; /* Make Mickey money */ 1412 union { 1413 struct tcphdr *tcp; 1414 struct udphdr *udp; 1415 struct icmp *icmp; 1416 #if INET6 1417 struct icmp6_hdr *icmp6; 1418 #endif /* INET6 */ 1419 struct pf_grev1_hdr *grev1; 1420 struct pf_esp_hdr *esp; 1421 void *any; 1422 } hdr; 1423 1424 /* XXX TODO: Change baddr and naddr to *saddr */ 1425 struct pf_addr baddr; /* src address before translation */ 1426 struct pf_addr bdaddr; /* dst address before translation */ 1427 struct pf_addr naddr; /* src address after translation */ 1428 struct pf_addr ndaddr; /* dst address after translation */ 1429 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1430 struct pf_addr *src; 1431 struct pf_addr *dst; 1432 struct ether_header 1433 *eh; 1434 struct mbuf *mp; 1435 int lmw; /* lazy writable offset */ 1436 struct pf_mtag *pf_mtag; 1437 u_int16_t *ip_sum; 1438 u_int32_t off; /* protocol header offset */ 1439 u_int32_t hdrlen; /* protocol header length */ 1440 u_int32_t p_len; /* total length of payload */ 1441 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1442 /* state code. Easier than tags */ 1443 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1444 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1445 #define PFDESC_IP_FRAG 0x0004 /* This is a fragment */ 1446 sa_family_t af; 1447 sa_family_t naf; /* address family after translation */ 1448 u_int8_t proto; 1449 u_int8_t tos; 1450 u_int8_t ttl; 1451 u_int8_t proto_variant; 1452 mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ 1453 u_int32_t pktflags; /* mbuf packet flags (PKTF) */ 1454 u_int32_t flowsrc; /* flow source (FLOWSRC) */ 1455 u_int32_t flowhash; /* flow hash to identify the sender */ 1456 }; 1457 #endif /* KERNEL */ 1458 1459 /* flags for RDR options */ 1460 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1461 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1462 1463 /* Reasons code for passing/dropping a packet */ 1464 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1465 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1466 #define PFRES_FRAG 2 /* Dropping following fragment */ 1467 #define PFRES_SHORT 3 /* Dropping short packet */ 1468 #define PFRES_NORM 4 /* Dropping by normalizer */ 1469 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1470 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1471 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1472 #define PFRES_IPOPTIONS 8 /* IP option */ 1473 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1474 #define PFRES_BADSTATE 10 /* State mismatch */ 1475 #define PFRES_STATEINS 11 /* State insertion failure */ 1476 #define PFRES_MAXSTATES 12 /* State limit */ 1477 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1478 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1479 #define PFRES_DUMMYNET 15 /* Dummynet */ 1480 #define PFRES_MAX 16 /* total+1 */ 1481 1482 #define PFRES_NAMES { \ 1483 "match", \ 1484 "bad-offset", \ 1485 "fragment", \ 1486 "short", \ 1487 "normalize", \ 1488 "memory", \ 1489 "bad-timestamp", \ 1490 "congestion", \ 1491 "ip-option", \ 1492 "proto-cksum", \ 1493 "state-mismatch", \ 1494 "state-insert", \ 1495 "state-limit", \ 1496 "src-limit", \ 1497 "synproxy", \ 1498 "dummynet", \ 1499 NULL \ 1500 } 1501 1502 /* Counters for other things we want to keep track of */ 1503 #define LCNT_STATES 0 /* states */ 1504 #define LCNT_SRCSTATES 1 /* max-src-states */ 1505 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1506 #define LCNT_SRCCONN 3 /* max-src-conn */ 1507 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1508 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1509 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1510 #define LCNT_MAX 7 /* total+1 */ 1511 1512 #define LCNT_NAMES { \ 1513 "max states per rule", \ 1514 "max-src-states", \ 1515 "max-src-nodes", \ 1516 "max-src-conn", \ 1517 "max-src-conn-rate", \ 1518 "overload table insertion", \ 1519 "overload flush states", \ 1520 NULL \ 1521 } 1522 1523 /* UDP state enumeration */ 1524 #define PFUDPS_NO_TRAFFIC 0 1525 #define PFUDPS_SINGLE 1 1526 #define PFUDPS_MULTIPLE 2 1527 1528 #define PFUDPS_NSTATES 3 /* number of state levels */ 1529 1530 #define PFUDPS_NAMES { \ 1531 "NO_TRAFFIC", \ 1532 "SINGLE", \ 1533 "MULTIPLE", \ 1534 NULL \ 1535 } 1536 1537 /* GREv1 protocol state enumeration */ 1538 #define PFGRE1S_NO_TRAFFIC 0 1539 #define PFGRE1S_INITIATING 1 1540 #define PFGRE1S_ESTABLISHED 2 1541 1542 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1543 1544 #define PFGRE1S_NAMES { \ 1545 "NO_TRAFFIC", \ 1546 "INITIATING", \ 1547 "ESTABLISHED", \ 1548 NULL \ 1549 } 1550 1551 #define PFESPS_NO_TRAFFIC 0 1552 #define PFESPS_INITIATING 1 1553 #define PFESPS_ESTABLISHED 2 1554 1555 #define PFESPS_NSTATES 3 /* number of state levels */ 1556 1557 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1558 1559 /* Other protocol state enumeration */ 1560 #define PFOTHERS_NO_TRAFFIC 0 1561 #define PFOTHERS_SINGLE 1 1562 #define PFOTHERS_MULTIPLE 2 1563 1564 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1565 1566 #define PFOTHERS_NAMES { \ 1567 "NO_TRAFFIC", \ 1568 "SINGLE", \ 1569 "MULTIPLE", \ 1570 NULL \ 1571 } 1572 1573 #define FCNT_STATE_SEARCH 0 1574 #define FCNT_STATE_INSERT 1 1575 #define FCNT_STATE_REMOVALS 2 1576 #define FCNT_MAX 3 1577 1578 #define SCNT_SRC_NODE_SEARCH 0 1579 #define SCNT_SRC_NODE_INSERT 1 1580 #define SCNT_SRC_NODE_REMOVALS 2 1581 #define SCNT_MAX 3 1582 1583 #ifdef KERNEL 1584 #define ACTION_SET(a, x) \ 1585 do { \ 1586 if ((a) != NULL) \ 1587 *(a) = (x); \ 1588 } while (0) 1589 1590 #define REASON_SET(a, x) \ 1591 do { \ 1592 if ((a) != NULL) \ 1593 *(a) = (x); \ 1594 if (x < PFRES_MAX) \ 1595 pf_status.counters[x]++; \ 1596 } while (0) 1597 #endif /* KERNEL */ 1598 1599 struct pf_status { 1600 u_int64_t counters[PFRES_MAX]; 1601 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1602 u_int64_t fcounters[FCNT_MAX]; 1603 u_int64_t scounters[SCNT_MAX]; 1604 u_int64_t pcounters[2][2][3]; 1605 u_int64_t bcounters[2][2]; 1606 u_int64_t stateid; 1607 u_int32_t running; 1608 u_int32_t states; 1609 u_int32_t src_nodes; 1610 u_int64_t since __attribute__((aligned(8))); 1611 u_int32_t debug; 1612 u_int32_t hostid; 1613 char ifname[IFNAMSIZ]; 1614 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1615 }; 1616 1617 struct cbq_opts { 1618 u_int32_t minburst; 1619 u_int32_t maxburst; 1620 u_int32_t pktsize; 1621 u_int32_t maxpktsize; 1622 u_int32_t ns_per_byte; 1623 u_int32_t maxidle; 1624 int32_t minidle; 1625 u_int32_t offtime; 1626 u_int32_t flags; 1627 }; 1628 1629 struct priq_opts { 1630 u_int32_t flags; 1631 }; 1632 1633 struct qfq_opts { 1634 u_int32_t flags; 1635 u_int32_t lmax; 1636 }; 1637 1638 struct hfsc_opts { 1639 /* real-time service curve */ 1640 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1641 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1642 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1643 u_int32_t rtsc_fl; /* service curve flags */ 1644 #if !defined(__LP64__) 1645 u_int32_t _pad; 1646 #endif /* !__LP64__ */ 1647 /* link-sharing service curve */ 1648 u_int64_t lssc_m1; 1649 u_int64_t lssc_d; 1650 u_int64_t lssc_m2; 1651 u_int32_t lssc_fl; 1652 #if !defined(__LP64__) 1653 u_int32_t __pad; 1654 #endif /* !__LP64__ */ 1655 /* upper-limit service curve */ 1656 u_int64_t ulsc_m1; 1657 u_int64_t ulsc_d; 1658 u_int64_t ulsc_m2; 1659 u_int32_t ulsc_fl; 1660 u_int32_t flags; /* scheduler flags */ 1661 }; 1662 1663 struct fairq_opts { 1664 u_int32_t nbuckets; /* hash buckets */ 1665 u_int32_t flags; 1666 u_int64_t hogs_m1; /* hog detection bandwidth */ 1667 1668 /* link-sharing service curve */ 1669 u_int64_t lssc_m1; 1670 u_int64_t lssc_d; 1671 u_int64_t lssc_m2; 1672 }; 1673 1674 /* bandwidth types */ 1675 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1676 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1677 1678 /* ALTQ rule flags */ 1679 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1680 1681 /* queue rule flags */ 1682 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1683 1684 struct pf_altq { 1685 char ifname[IFNAMSIZ]; 1686 1687 /* discipline-specific state */ 1688 void *altq_disc __attribute__((aligned(8))); 1689 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1690 #if !defined(__LP64__) 1691 u_int32_t _pad[2]; 1692 #endif /* !__LP64__ */ 1693 1694 u_int32_t aflags; /* ALTQ rule flags */ 1695 u_int32_t bwtype; /* bandwidth type */ 1696 1697 /* scheduler spec */ 1698 u_int32_t scheduler; /* scheduler type */ 1699 u_int32_t tbrsize; /* tokenbucket regulator size */ 1700 u_int64_t ifbandwidth; /* interface bandwidth */ 1701 1702 /* queue spec */ 1703 char qname[PF_QNAME_SIZE]; /* queue name */ 1704 char parent[PF_QNAME_SIZE]; /* parent name */ 1705 u_int32_t parent_qid; /* parent queue id */ 1706 u_int32_t qrflags; /* queue rule flags */ 1707 union { 1708 u_int32_t priority; /* priority */ 1709 u_int32_t weight; /* weight */ 1710 }; 1711 u_int32_t qlimit; /* queue size limit */ 1712 u_int32_t flags; /* misc flags */ 1713 #if !defined(__LP64__) 1714 u_int32_t __pad; 1715 #endif /* !__LP64__ */ 1716 u_int64_t bandwidth; /* queue bandwidth */ 1717 union { 1718 struct cbq_opts cbq_opts; 1719 struct priq_opts priq_opts; 1720 struct hfsc_opts hfsc_opts; 1721 struct fairq_opts fairq_opts; 1722 struct qfq_opts qfq_opts; 1723 } pq_u; 1724 1725 u_int32_t qid; /* return value */ 1726 }; 1727 1728 struct pf_tagname { 1729 TAILQ_ENTRY(pf_tagname) entries; 1730 char name[PF_TAG_NAME_SIZE]; 1731 u_int16_t tag; 1732 int ref; 1733 }; 1734 1735 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1736 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1737 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1738 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1739 1740 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1741 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1742 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1743 1744 /* 1745 * ioctl parameter structures 1746 */ 1747 1748 struct pfioc_pooladdr { 1749 u_int32_t action; 1750 u_int32_t ticket; 1751 u_int32_t nr; 1752 u_int32_t r_num; 1753 u_int8_t r_action; 1754 u_int8_t r_last; 1755 u_int8_t af; 1756 char anchor[MAXPATHLEN]; 1757 struct pf_pooladdr addr; 1758 }; 1759 1760 struct pfioc_rule { 1761 u_int32_t action; 1762 u_int32_t ticket; 1763 u_int32_t pool_ticket; 1764 u_int32_t nr; 1765 char anchor[MAXPATHLEN]; 1766 char anchor_call[MAXPATHLEN]; 1767 struct pf_rule rule; 1768 }; 1769 1770 struct pfioc_natlook { 1771 struct pf_addr saddr; 1772 struct pf_addr daddr; 1773 struct pf_addr rsaddr; 1774 struct pf_addr rdaddr; 1775 union pf_state_xport sxport; 1776 union pf_state_xport dxport; 1777 union pf_state_xport rsxport; 1778 union pf_state_xport rdxport; 1779 sa_family_t af; 1780 u_int8_t proto; 1781 u_int8_t proto_variant; 1782 u_int8_t direction; 1783 }; 1784 1785 struct pfioc_state { 1786 struct pfsync_state state; 1787 }; 1788 1789 struct pfioc_src_node_kill { 1790 /* XXX returns the number of src nodes killed in psnk_af */ 1791 sa_family_t psnk_af; 1792 struct pf_rule_addr psnk_src; 1793 struct pf_rule_addr psnk_dst; 1794 }; 1795 1796 struct pfioc_state_addr_kill { 1797 struct pf_addr_wrap addr; 1798 u_int8_t reserved_[3]; 1799 u_int8_t neg; 1800 union pf_rule_xport xport; 1801 }; 1802 1803 struct pfioc_state_kill { 1804 /* XXX returns the number of states killed in psk_af */ 1805 sa_family_t psk_af; 1806 u_int8_t psk_proto; 1807 u_int8_t psk_proto_variant; 1808 u_int8_t _pad; 1809 struct pfioc_state_addr_kill psk_src; 1810 struct pfioc_state_addr_kill psk_dst; 1811 char psk_ifname[IFNAMSIZ]; 1812 char psk_ownername[PF_OWNER_NAME_SIZE]; 1813 }; 1814 1815 struct pfioc_states { 1816 int ps_len; 1817 union { 1818 caddr_t psu_buf; 1819 struct pfsync_state *psu_states; 1820 } ps_u __attribute__((aligned(8))); 1821 #define ps_buf ps_u.psu_buf 1822 #define ps_states ps_u.psu_states 1823 }; 1824 1825 #ifdef KERNEL 1826 struct pfioc_states_32 { 1827 int ps_len; 1828 union { 1829 user32_addr_t psu_buf; 1830 user32_addr_t psu_states; 1831 } ps_u __attribute__((aligned(8))); 1832 }; 1833 1834 struct pfioc_states_64 { 1835 int ps_len; 1836 union { 1837 user64_addr_t psu_buf; 1838 user64_addr_t psu_states; 1839 } ps_u __attribute__((aligned(8))); 1840 }; 1841 #endif /* KERNEL */ 1842 1843 #define PFTOK_PROCNAME_LEN 64 1844 #pragma pack(1) 1845 struct pfioc_token { 1846 u_int64_t token_value; 1847 u_int64_t timestamp; 1848 pid_t pid; 1849 char proc_name[PFTOK_PROCNAME_LEN]; 1850 }; 1851 #pragma pack() 1852 1853 struct pfioc_kernel_token { 1854 SLIST_ENTRY(pfioc_kernel_token) next; 1855 struct pfioc_token token; 1856 }; 1857 1858 struct pfioc_remove_token { 1859 u_int64_t token_value; 1860 u_int64_t refcount; 1861 }; 1862 1863 struct pfioc_tokens { 1864 int size; 1865 union { 1866 caddr_t pgtu_buf; 1867 struct pfioc_token *pgtu_tokens; 1868 } pgt_u __attribute__((aligned(8))); 1869 #define pgt_buf pgt_u.pgtu_buf 1870 #define pgt_tokens pgt_u.pgtu_tokens 1871 }; 1872 1873 #ifdef KERNEL 1874 struct pfioc_tokens_32 { 1875 int size; 1876 union { 1877 user32_addr_t pgtu_buf; 1878 user32_addr_t pgtu_tokens; 1879 } pgt_u __attribute__((aligned(8))); 1880 }; 1881 1882 struct pfioc_tokens_64 { 1883 int size; 1884 union { 1885 user64_addr_t pgtu_buf; 1886 user64_addr_t pgtu_tokens; 1887 } pgt_u __attribute__((aligned(8))); 1888 }; 1889 #endif /* KERNEL */ 1890 1891 1892 struct pfioc_src_nodes { 1893 int psn_len; 1894 union { 1895 caddr_t psu_buf; 1896 struct pf_src_node *psu_src_nodes; 1897 } psn_u __attribute__((aligned(8))); 1898 #define psn_buf psn_u.psu_buf 1899 #define psn_src_nodes psn_u.psu_src_nodes 1900 }; 1901 1902 #ifdef KERNEL 1903 struct pfioc_src_nodes_32 { 1904 int psn_len; 1905 union { 1906 user32_addr_t psu_buf; 1907 user32_addr_t psu_src_nodes; 1908 } psn_u __attribute__((aligned(8))); 1909 }; 1910 1911 struct pfioc_src_nodes_64 { 1912 int psn_len; 1913 union { 1914 user64_addr_t psu_buf; 1915 user64_addr_t psu_src_nodes; 1916 } psn_u __attribute__((aligned(8))); 1917 }; 1918 #endif /* KERNEL */ 1919 1920 struct pfioc_if { 1921 char ifname[IFNAMSIZ]; 1922 }; 1923 1924 struct pfioc_tm { 1925 int timeout; 1926 int seconds; 1927 }; 1928 1929 struct pfioc_limit { 1930 int index; 1931 unsigned limit; 1932 }; 1933 1934 struct pfioc_altq { 1935 u_int32_t action; 1936 u_int32_t ticket; 1937 u_int32_t nr; 1938 struct pf_altq altq __attribute__((aligned(8))); 1939 }; 1940 1941 struct pfioc_qstats { 1942 u_int32_t ticket; 1943 u_int32_t nr; 1944 void *buf __attribute__((aligned(8))); 1945 int nbytes __attribute__((aligned(8))); 1946 u_int8_t scheduler; 1947 }; 1948 1949 struct pfioc_ruleset { 1950 u_int32_t nr; 1951 char path[MAXPATHLEN]; 1952 char name[PF_ANCHOR_NAME_SIZE]; 1953 }; 1954 1955 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1956 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1957 struct pfioc_trans { 1958 int size; /* number of elements */ 1959 int esize; /* size of each element in bytes */ 1960 struct pfioc_trans_e { 1961 int rs_num; 1962 char anchor[MAXPATHLEN]; 1963 u_int32_t ticket; 1964 } *array __attribute__((aligned(8))); 1965 }; 1966 1967 #ifdef KERNEL 1968 struct pfioc_trans_32 { 1969 int size; /* number of elements */ 1970 int esize; /* size of each element in bytes */ 1971 user32_addr_t array __attribute__((aligned(8))); 1972 }; 1973 1974 struct pfioc_trans_64 { 1975 int size; /* number of elements */ 1976 int esize; /* size of each element in bytes */ 1977 user64_addr_t array __attribute__((aligned(8))); 1978 }; 1979 #endif /* KERNEL */ 1980 1981 1982 #define PFR_FLAG_ATOMIC 0x00000001 1983 #define PFR_FLAG_DUMMY 0x00000002 1984 #define PFR_FLAG_FEEDBACK 0x00000004 1985 #define PFR_FLAG_CLSTATS 0x00000008 1986 #define PFR_FLAG_ADDRSTOO 0x00000010 1987 #define PFR_FLAG_REPLACE 0x00000020 1988 #define PFR_FLAG_ALLRSETS 0x00000040 1989 #define PFR_FLAG_ALLMASK 0x0000007F 1990 #ifdef KERNEL 1991 #define PFR_FLAG_USERIOCTL 0x10000000 1992 #endif /* KERNEL */ 1993 1994 struct pfioc_table { 1995 struct pfr_table pfrio_table; 1996 void *pfrio_buffer __attribute__((aligned(8))); 1997 int pfrio_esize __attribute__((aligned(8))); 1998 int pfrio_size; 1999 int pfrio_size2; 2000 int pfrio_nadd; 2001 int pfrio_ndel; 2002 int pfrio_nchange; 2003 int pfrio_flags; 2004 u_int32_t pfrio_ticket; 2005 }; 2006 #define pfrio_exists pfrio_nadd 2007 #define pfrio_nzero pfrio_nadd 2008 #define pfrio_nmatch pfrio_nadd 2009 #define pfrio_naddr pfrio_size2 2010 #define pfrio_setflag pfrio_size2 2011 #define pfrio_clrflag pfrio_nadd 2012 2013 #ifdef KERNEL 2014 struct pfioc_table_32 { 2015 struct pfr_table pfrio_table; 2016 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 2017 int pfrio_esize __attribute__((aligned(8))); 2018 int pfrio_size; 2019 int pfrio_size2; 2020 int pfrio_nadd; 2021 int pfrio_ndel; 2022 int pfrio_nchange; 2023 int pfrio_flags; 2024 u_int32_t pfrio_ticket; 2025 }; 2026 2027 struct pfioc_table_64 { 2028 struct pfr_table pfrio_table; 2029 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2030 int pfrio_esize __attribute__((aligned(8))); 2031 int pfrio_size; 2032 int pfrio_size2; 2033 int pfrio_nadd; 2034 int pfrio_ndel; 2035 int pfrio_nchange; 2036 int pfrio_flags; 2037 u_int32_t pfrio_ticket; 2038 }; 2039 #endif /* KERNEL */ 2040 2041 struct pfioc_iface { 2042 char pfiio_name[IFNAMSIZ]; 2043 void *pfiio_buffer __attribute__((aligned(8))); 2044 int pfiio_esize __attribute__((aligned(8))); 2045 int pfiio_size; 2046 int pfiio_nzero; 2047 int pfiio_flags; 2048 }; 2049 2050 #ifdef KERNEL 2051 struct pfioc_iface_32 { 2052 char pfiio_name[IFNAMSIZ]; 2053 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2054 int pfiio_esize __attribute__((aligned(8))); 2055 int pfiio_size; 2056 int pfiio_nzero; 2057 int pfiio_flags; 2058 }; 2059 2060 struct pfioc_iface_64 { 2061 char pfiio_name[IFNAMSIZ]; 2062 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2063 int pfiio_esize __attribute__((aligned(8))); 2064 int pfiio_size; 2065 int pfiio_nzero; 2066 int pfiio_flags; 2067 }; 2068 #endif /* KERNEL */ 2069 2070 struct pf_ifspeed { 2071 char ifname[IFNAMSIZ]; 2072 u_int64_t baudrate; 2073 }; 2074 2075 /* 2076 * ioctl operations 2077 */ 2078 2079 #define DIOCSTART _IO ('D', 1) 2080 #define DIOCSTOP _IO ('D', 2) 2081 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2082 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2083 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2084 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2085 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2086 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2087 /* XXX cut 10 - 17 */ 2088 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2089 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2090 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2091 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2092 #define DIOCCLRSTATUS _IO ('D', 22) 2093 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2094 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2095 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2096 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2097 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2098 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2099 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2100 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2101 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2102 #define DIOCCLRRULECTRS _IO ('D', 38) 2103 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2104 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2105 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2106 #define DIOCSTARTALTQ _IO ('D', 42) 2107 #define DIOCSTOPALTQ _IO ('D', 43) 2108 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2109 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2110 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2111 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2112 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2113 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2114 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2115 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2116 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2117 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2118 /* XXX cut 55 - 57 */ 2119 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2120 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2121 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2122 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2123 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2124 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2125 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2126 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2127 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2128 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2129 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2130 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2131 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2132 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2133 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2134 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2135 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2136 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2137 #define DIOCOSFPFLUSH _IO('D', 78) 2138 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2139 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2140 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2141 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2142 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2143 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2144 #define DIOCCLRSRCNODES _IO('D', 85) 2145 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2146 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2147 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2148 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2149 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2150 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2151 2152 #ifdef KERNEL 2153 RB_HEAD(pf_src_tree, pf_src_node); 2154 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2155 pf_src_compare); 2156 extern struct pf_src_tree tree_src_tracking; 2157 2158 RB_HEAD(pf_state_tree_id, pf_state); 2159 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2160 entry_id, pf_state_compare_id); 2161 extern struct pf_state_tree_id tree_id; 2162 extern struct pf_state_queue state_list; 2163 2164 TAILQ_HEAD(pf_poolqueue, pf_pool); 2165 extern struct pf_poolqueue pf_pools[2]; 2166 extern struct pf_palist pf_pabuf; 2167 extern u_int32_t ticket_pabuf; 2168 #if PF_ALTQ 2169 TAILQ_HEAD(pf_altqqueue, pf_altq); 2170 extern struct pf_altqqueue pf_altqs[2]; 2171 extern u_int32_t ticket_altqs_active; 2172 extern u_int32_t ticket_altqs_inactive; 2173 extern int altqs_inactive_open; 2174 extern struct pf_altqqueue *pf_altqs_active; 2175 extern struct pf_altqqueue *pf_altqs_inactive; 2176 #endif /* PF_ALTQ */ 2177 extern struct pf_poolqueue *pf_pools_active; 2178 extern struct pf_poolqueue *pf_pools_inactive; 2179 2180 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2181 struct pf_addr_wrap *); 2182 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2183 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2184 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2185 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2186 2187 extern struct pool pf_src_tree_pl, pf_rule_pl; 2188 extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2189 extern struct pool pf_state_scrub_pl; 2190 #if PF_ALTQ 2191 extern struct pool pf_altq_pl; 2192 #endif /* PF_ALTQ */ 2193 extern struct pool pf_app_state_pl; 2194 2195 extern struct thread *pf_purge_thread; 2196 2197 __private_extern__ void pfinit(void); 2198 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2199 __private_extern__ void pf_purge_expired_src_nodes(void); 2200 __private_extern__ void pf_purge_expired_states(u_int32_t); 2201 __private_extern__ void pf_unlink_state(struct pf_state *); 2202 __private_extern__ void pf_free_state(struct pf_state *); 2203 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2204 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2205 struct pf_rule *, struct pf_addr *, sa_family_t); 2206 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2207 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2208 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2209 u_int, int *); 2210 __private_extern__ void pf_print_state(struct pf_state *); 2211 __private_extern__ void pf_print_flags(u_int8_t); 2212 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2213 u_int8_t); 2214 2215 extern struct ifnet *sync_ifp; 2216 extern struct pf_rule pf_default_rule; 2217 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2218 u_int8_t); 2219 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2220 2221 struct ip_fw_args; 2222 #if INET 2223 __private_extern__ int pf_test(int, struct ifnet *, struct mbuf **, 2224 struct ether_header *, struct ip_fw_args *); 2225 #endif /* INET */ 2226 2227 #if INET6 2228 __private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **, 2229 struct ether_header *, struct ip_fw_args *); 2230 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2231 struct pf_addr *, struct pf_addr *, u_int8_t); 2232 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2233 #endif /* INET6 */ 2234 2235 __private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *, 2236 struct mbuf *, int); 2237 __private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int, 2238 u_short *, u_short *, sa_family_t); 2239 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2240 __private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *, 2241 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2242 struct pf_ruleset *, struct pf_pdesc *); 2243 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2244 struct pf_addr *, struct pf_addr *, sa_family_t); 2245 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2246 struct pf_addr *, sa_family_t); 2247 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2248 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2249 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2250 union pf_state_xport *); 2251 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2252 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2253 2254 __private_extern__ void pf_normalize_init(void); 2255 __private_extern__ int pf_normalize_isempty(void); 2256 __private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, 2257 u_short *, struct pf_pdesc *); 2258 __private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, 2259 u_short *, struct pf_pdesc *); 2260 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, 2261 int, int, void *, struct pf_pdesc *); 2262 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2263 __private_extern__ int pf_normalize_tcp_init(struct mbuf *, int, 2264 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2265 struct pf_state_peer *); 2266 __private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int, 2267 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2268 struct pf_state_peer *, struct pf_state_peer *, int *); 2269 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2270 __private_extern__ void pf_purge_expired_fragments(void); 2271 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2272 struct pfi_kif *); 2273 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2274 struct pf_addr_wrap *); 2275 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2276 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2277 struct pf_state_key *); 2278 __private_extern__ void pfr_initialize(void); 2279 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2280 sa_family_t); 2281 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2282 sa_family_t, u_int64_t, int, int, int); 2283 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2284 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2285 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2286 struct pfi_dynaddr *); 2287 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2288 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2289 char *); 2290 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2291 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2292 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2293 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2294 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2295 int *, int); 2296 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2297 int *, int); 2298 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2299 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2300 int *, int); 2301 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2302 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2303 u_int64_t); 2304 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2305 int, int *, int); 2306 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2307 int, int *, int); 2308 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2309 int, int *, int *, int *, int *, int, u_int32_t); 2310 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2311 int *, int); 2312 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2313 int *, int); 2314 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2315 int, int *, int); 2316 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2317 int, int *, int); 2318 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2319 int); 2320 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2321 int); 2322 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2323 int *, int); 2324 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2325 int, int *, int *, u_int32_t, int); 2326 2327 extern struct pfi_kif *pfi_all; 2328 2329 __private_extern__ void pfi_initialize(void); 2330 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2331 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2332 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2333 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2334 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2335 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2336 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2337 sa_family_t); 2338 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2339 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2340 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2341 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2342 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2343 __private_extern__ int pfi_set_flags(const char *, int); 2344 __private_extern__ int pfi_clear_flags(const char *, int); 2345 2346 __private_extern__ u_int16_t pf_tagname2tag(char *); 2347 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2348 __private_extern__ void pf_tag_ref(u_int16_t); 2349 __private_extern__ void pf_tag_unref(u_int16_t); 2350 __private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *, 2351 int, unsigned int, struct pf_pdesc *); 2352 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2353 struct pf_rule **, struct pf_rule **, int *); 2354 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2355 struct pf_rule **, struct pf_rule **, int *); 2356 __private_extern__ u_int32_t pf_qname2qid(char *); 2357 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2358 __private_extern__ void pf_qid_unref(u_int32_t); 2359 2360 extern struct pf_status pf_status; 2361 extern struct pool pf_frent_pl, pf_frag_pl; 2362 2363 struct pf_pool_limit { 2364 void *pp; 2365 unsigned limit; 2366 }; 2367 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2368 2369 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2370 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2371 __private_extern__ int pf_ifaddr_hook(struct ifnet *); 2372 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2373 2374 /* 2375 * The following are defined with "private extern" storage class for 2376 * kernel, and "extern" for user-space. 2377 */ 2378 extern struct pf_anchor_global pf_anchors; 2379 extern struct pf_anchor pf_main_anchor; 2380 #define pf_main_ruleset pf_main_anchor.ruleset 2381 2382 extern int pf_is_enabled; 2383 extern int16_t pf_nat64_configured; 2384 #define PF_IS_ENABLED (pf_is_enabled != 0) 2385 extern u_int32_t pf_hash_seed; 2386 2387 #if PF_ALTQ 2388 extern u_int32_t altq_allowed; 2389 #endif /* PF_ALTQ */ 2390 2391 /* these ruleset functions can be linked into userland programs (pfctl) */ 2392 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2393 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2394 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2395 const struct pf_ruleset *, const char *); 2396 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2397 const struct pf_rule *, struct pfioc_rule *); 2398 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2399 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2400 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2401 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2402 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2403 const char *, int, int *); 2404 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2405 __private_extern__ void pf_rs_initialize(void); 2406 2407 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2408 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2409 struct mbuf *, int, const struct tcphdr *); 2410 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2411 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2412 __private_extern__ void pf_osfp_flush(void); 2413 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2414 __private_extern__ void pf_osfp_initialize(void); 2415 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2416 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2417 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2418 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2419 #else /* !KERNEL */ 2420 extern struct pf_anchor_global pf_anchors; 2421 extern struct pf_anchor pf_main_anchor; 2422 #define pf_main_ruleset pf_main_anchor.ruleset 2423 2424 /* these ruleset functions can be linked into userland programs (pfctl) */ 2425 extern int pf_get_ruleset_number(u_int8_t); 2426 extern void pf_init_ruleset(struct pf_ruleset *); 2427 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2428 const char *); 2429 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2430 struct pfioc_rule *); 2431 extern void pf_anchor_remove(struct pf_rule *); 2432 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2433 extern struct pf_anchor *pf_find_anchor(const char *); 2434 extern struct pf_ruleset *pf_find_ruleset(const char *); 2435 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2436 const char *, int, int *); 2437 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2438 extern void pf_rs_initialize(void); 2439 #endif /* !KERNEL */ 2440 2441 #ifdef __cplusplus 2442 } 2443 #endif 2444 #endif /* PF || !KERNEL */ 2445 #endif /* PRIVATE */ 2446 #endif /* _NET_PFVAR_H_ */ 2447