1 /* 2 * Copyright (c) 2007-2014 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/locks.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 extern lck_rw_t *pf_perim_lock; 103 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 }; 184 185 /* PFTM default values */ 186 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 187 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 188 #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */ 189 #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */ 190 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 191 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 192 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 193 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 194 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 195 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 196 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 197 #define PFTM_GREv1_FIRST_PACKET_VAL 120 198 #define PFTM_GREv1_INITIATING_VAL 30 199 #define PFTM_GREv1_ESTABLISHED_VAL 1800 200 #define PFTM_ESP_FIRST_PACKET_VAL 120 201 #define PFTM_ESP_INITIATING_VAL 30 202 #define PFTM_ESP_ESTABLISHED_VAL 900 203 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 204 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 205 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 206 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 207 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 208 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 209 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 210 211 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 212 enum { PF_LIMIT_STATES, 213 PF_LIMIT_APP_STATES, 214 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 215 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 216 #define PF_POOL_IDMASK 0x0f 217 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 218 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 219 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 220 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 221 PF_ADDR_RANGE }; 222 #define PF_POOL_TYPEMASK 0x0f 223 #define PF_POOL_STICKYADDR 0x20 224 #define PF_WSCALE_FLAG 0x80 225 #define PF_WSCALE_MASK 0x0f 226 227 #define PF_LOG 0x01 228 #define PF_LOG_ALL 0x02 229 #define PF_LOG_SOCKET_LOOKUP 0x04 230 231 struct pf_addr { 232 union { 233 struct in_addr v4; 234 struct in6_addr v6; 235 u_int8_t addr8[16]; 236 u_int16_t addr16[8]; 237 u_int32_t addr32[4]; 238 } pfa; /* 128-bit address */ 239 #define v4 pfa.v4 240 #define v6 pfa.v6 241 #define addr8 pfa.addr8 242 #define addr16 pfa.addr16 243 #define addr32 pfa.addr32 244 }; 245 246 #define PF_TABLE_NAME_SIZE 32 247 248 #define PFI_AFLAG_NETWORK 0x01 249 #define PFI_AFLAG_BROADCAST 0x02 250 #define PFI_AFLAG_PEER 0x04 251 #define PFI_AFLAG_MODEMASK 0x07 252 #define PFI_AFLAG_NOALIAS 0x08 253 254 #ifndef RTLABEL_LEN 255 #define RTLABEL_LEN 32 256 #endif 257 258 struct pf_addr_wrap { 259 union { 260 struct { 261 struct pf_addr addr; 262 struct pf_addr mask; 263 } a; 264 char ifname[IFNAMSIZ]; 265 char tblname[PF_TABLE_NAME_SIZE]; 266 char rtlabelname[RTLABEL_LEN]; 267 u_int32_t rtlabel; 268 } v; 269 union { 270 #ifdef KERNEL 271 struct pfi_dynaddr *dyn __attribute__((aligned(8))); 272 struct pfr_ktable *tbl __attribute__((aligned(8))); 273 #else /* !KERNEL */ 274 void *dyn __attribute__((aligned(8))); 275 void *tbl __attribute__((aligned(8))); 276 #endif /* !KERNEL */ 277 int dyncnt __attribute__((aligned(8))); 278 int tblcnt __attribute__((aligned(8))); 279 } p __attribute__((aligned(8))); 280 u_int8_t type; /* PF_ADDR_* */ 281 u_int8_t iflags; /* PFI_AFLAG_* */ 282 }; 283 284 struct pf_port_range { 285 u_int16_t port[2]; 286 u_int8_t op; 287 }; 288 289 union pf_rule_xport { 290 struct pf_port_range range; 291 u_int16_t call_id; 292 u_int32_t spi; 293 }; 294 295 #ifdef KERNEL 296 struct pfi_dynaddr { 297 TAILQ_ENTRY(pfi_dynaddr) entry; 298 struct pf_addr pfid_addr4; 299 struct pf_addr pfid_mask4; 300 struct pf_addr pfid_addr6; 301 struct pf_addr pfid_mask6; 302 struct pfr_ktable *pfid_kt; 303 struct pfi_kif *pfid_kif; 304 void *pfid_hook_cookie; 305 int pfid_net; /* mask or 128 */ 306 int pfid_acnt4; /* address count IPv4 */ 307 int pfid_acnt6; /* address count IPv6 */ 308 sa_family_t pfid_af; /* rule af */ 309 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 310 }; 311 312 /* 313 * Address manipulation macros 314 */ 315 316 #if INET 317 #if !INET6 318 #define PF_INET_ONLY 319 #endif /* ! INET6 */ 320 #endif /* INET */ 321 322 #if INET6 323 #if !INET 324 #define PF_INET6_ONLY 325 #endif /* ! INET */ 326 #endif /* INET6 */ 327 328 #if INET 329 #if INET6 330 #define PF_INET_INET6 331 #endif /* INET6 */ 332 #endif /* INET */ 333 334 #else /* !KERNEL */ 335 336 #define PF_INET_INET6 337 338 #endif /* !KERNEL */ 339 340 /* Both IPv4 and IPv6 */ 341 #ifdef PF_INET_INET6 342 343 #define PF_AEQ(a, b, c) \ 344 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 345 ((a)->addr32[3] == (b)->addr32[3] && \ 346 (a)->addr32[2] == (b)->addr32[2] && \ 347 (a)->addr32[1] == (b)->addr32[1] && \ 348 (a)->addr32[0] == (b)->addr32[0])) \ 349 350 #define PF_ANEQ(a, b, c) \ 351 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 352 ((a)->addr32[3] != (b)->addr32[3] || \ 353 (a)->addr32[2] != (b)->addr32[2] || \ 354 (a)->addr32[1] != (b)->addr32[1] || \ 355 (a)->addr32[0] != (b)->addr32[0])) \ 356 357 #define PF_ALEQ(a, b, c) \ 358 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \ 359 ((a)->addr32[3] <= (b)->addr32[3] && \ 360 (a)->addr32[2] <= (b)->addr32[2] && \ 361 (a)->addr32[1] <= (b)->addr32[1] && \ 362 (a)->addr32[0] <= (b)->addr32[0])) \ 363 364 #define PF_AZERO(a, c) \ 365 ((c == AF_INET && !(a)->addr32[0]) || \ 366 (!(a)->addr32[0] && !(a)->addr32[1] && \ 367 !(a)->addr32[2] && !(a)->addr32[3])) \ 368 369 #define PF_MATCHA(n, a, m, b, f) \ 370 pf_match_addr(n, a, m, b, f) 371 372 #define PF_ACPY(a, b, f) \ 373 pf_addrcpy(a, b, f) 374 375 #define PF_AINC(a, f) \ 376 pf_addr_inc(a, f) 377 378 #define PF_POOLMASK(a, b, c, d, f) \ 379 pf_poolmask(a, b, c, d, f) 380 381 #else 382 383 /* Just IPv6 */ 384 385 #ifdef PF_INET6_ONLY 386 387 #define PF_AEQ(a, b, c) \ 388 ((a)->addr32[3] == (b)->addr32[3] && \ 389 (a)->addr32[2] == (b)->addr32[2] && \ 390 (a)->addr32[1] == (b)->addr32[1] && \ 391 (a)->addr32[0] == (b)->addr32[0]) \ 392 393 #define PF_ANEQ(a, b, c) \ 394 ((a)->addr32[3] != (b)->addr32[3] || \ 395 (a)->addr32[2] != (b)->addr32[2] || \ 396 (a)->addr32[1] != (b)->addr32[1] || \ 397 (a)->addr32[0] != (b)->addr32[0]) \ 398 399 #define PF_ALEQ(a, b, c) \ 400 ((a)->addr32[3] <= (b)->addr32[3] && \ 401 (a)->addr32[2] <= (b)->addr32[2] && \ 402 (a)->addr32[1] <= (b)->addr32[1] && \ 403 (a)->addr32[0] <= (b)->addr32[0]) \ 404 405 #define PF_AZERO(a, c) \ 406 (!(a)->addr32[0] && \ 407 !(a)->addr32[1] && \ 408 !(a)->addr32[2] && \ 409 !(a)->addr32[3]) \ 410 411 #define PF_MATCHA(n, a, m, b, f) \ 412 pf_match_addr(n, a, m, b, f) 413 414 #define PF_ACPY(a, b, f) \ 415 pf_addrcpy(a, b, f) 416 417 #define PF_AINC(a, f) \ 418 pf_addr_inc(a, f) 419 420 #define PF_POOLMASK(a, b, c, d, f) \ 421 pf_poolmask(a, b, c, d, f) 422 423 #else 424 425 /* Just IPv4 */ 426 #ifdef PF_INET_ONLY 427 428 #define PF_AEQ(a, b, c) \ 429 ((a)->addr32[0] == (b)->addr32[0]) 430 431 #define PF_ANEQ(a, b, c) \ 432 ((a)->addr32[0] != (b)->addr32[0]) 433 434 #define PF_ALEQ(a, b, c) \ 435 ((a)->addr32[0] <= (b)->addr32[0]) 436 437 #define PF_AZERO(a, c) \ 438 (!(a)->addr32[0]) 439 440 #define PF_MATCHA(n, a, m, b, f) \ 441 pf_match_addr(n, a, m, b, f) 442 443 #define PF_ACPY(a, b, f) \ 444 (a)->v4.s_addr = (b)->v4.s_addr 445 446 #define PF_AINC(a, f) \ 447 do { \ 448 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 449 } while (0) 450 451 #define PF_POOLMASK(a, b, c, d, f) \ 452 do { \ 453 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 454 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ 455 } while (0) 456 457 #endif /* PF_INET_ONLY */ 458 #endif /* PF_INET6_ONLY */ 459 #endif /* PF_INET_INET6 */ 460 461 #ifdef KERNEL 462 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 463 ( \ 464 (((aw)->type == PF_ADDR_NOROUTE && \ 465 pf_routable((x), (af), NULL)) || \ 466 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 467 pf_routable((x), (af), (ifp))) || \ 468 ((aw)->type == PF_ADDR_RTLABEL && \ 469 !pf_rtlabel_match((x), (af), (aw))) || \ 470 ((aw)->type == PF_ADDR_TABLE && \ 471 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 472 ((aw)->type == PF_ADDR_DYNIFTL && \ 473 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 474 ((aw)->type == PF_ADDR_RANGE && \ 475 !pf_match_addr_range(&(aw)->v.a.addr, \ 476 &(aw)->v.a.mask, (x), (af))) || \ 477 ((aw)->type == PF_ADDR_ADDRMASK && \ 478 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 479 !PF_MATCHA(0, &(aw)->v.a.addr, \ 480 &(aw)->v.a.mask, (x), (af))))) != \ 481 (neg) \ 482 ) 483 #endif /* KERNEL */ 484 485 struct pf_rule_uid { 486 uid_t uid[2]; 487 u_int8_t op; 488 u_int8_t _pad[3]; 489 }; 490 491 struct pf_rule_gid { 492 uid_t gid[2]; 493 u_int8_t op; 494 u_int8_t _pad[3]; 495 }; 496 497 struct pf_rule_addr { 498 struct pf_addr_wrap addr; 499 union pf_rule_xport xport; 500 u_int8_t neg; 501 }; 502 503 struct pf_pooladdr { 504 struct pf_addr_wrap addr; 505 TAILQ_ENTRY(pf_pooladdr) entries; 506 #if !defined(__LP64__) 507 u_int32_t _pad[2]; 508 #endif /* !__LP64__ */ 509 char ifname[IFNAMSIZ]; 510 #ifdef KERNEL 511 struct pfi_kif *kif __attribute__((aligned(8))); 512 #else /* !KERNEL */ 513 void *kif __attribute__((aligned(8))); 514 #endif /* !KERNEL */ 515 }; 516 517 TAILQ_HEAD(pf_palist, pf_pooladdr); 518 519 struct pf_poolhashkey { 520 union { 521 u_int8_t key8[16]; 522 u_int16_t key16[8]; 523 u_int32_t key32[4]; 524 } pfk; /* 128-bit hash key */ 525 #define key8 pfk.key8 526 #define key16 pfk.key16 527 #define key32 pfk.key32 528 }; 529 530 struct pf_pool { 531 struct pf_palist list; 532 #if !defined(__LP64__) 533 u_int32_t _pad[2]; 534 #endif /* !__LP64__ */ 535 #ifdef KERNEL 536 struct pf_pooladdr *cur __attribute__((aligned(8))); 537 #else /* !KERNEL */ 538 void *cur __attribute__((aligned(8))); 539 #endif /* !KERNEL */ 540 struct pf_poolhashkey key __attribute__((aligned(8))); 541 struct pf_addr counter; 542 int tblidx; 543 u_int16_t proxy_port[2]; 544 u_int8_t port_op; 545 u_int8_t opts; 546 }; 547 548 549 /* A packed Operating System description for fingerprinting */ 550 typedef u_int32_t pf_osfp_t; 551 #define PF_OSFP_ANY ((pf_osfp_t)0) 552 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 553 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 554 555 struct pf_osfp_entry { 556 SLIST_ENTRY(pf_osfp_entry) fp_entry; 557 #if !defined(__LP64__) 558 u_int32_t _pad; 559 #endif /* !__LP64__ */ 560 pf_osfp_t fp_os; 561 int fp_enflags; 562 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 563 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 564 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 565 #define PF_OSFP_LEN 32 566 char fp_class_nm[PF_OSFP_LEN]; 567 char fp_version_nm[PF_OSFP_LEN]; 568 char fp_subtype_nm[PF_OSFP_LEN]; 569 }; 570 #define PF_OSFP_ENTRY_EQ(a, b) \ 571 ((a)->fp_os == (b)->fp_os && \ 572 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 573 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 574 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 575 576 /* handle pf_osfp_t packing */ 577 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 578 #define _FP_UNUSED_BITS 1 579 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 580 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 581 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 582 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 583 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 584 ((1 << _FP_CLASS_BITS) - 1); \ 585 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 586 ((1 << _FP_VERSION_BITS) - 1);\ 587 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 588 } while (0) 589 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 590 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 591 + _FP_SUBTYPE_BITS); \ 592 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 593 _FP_SUBTYPE_BITS; \ 594 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 595 } while (0) 596 597 /* the fingerprint of an OSes TCP SYN packet */ 598 typedef u_int64_t pf_tcpopts_t; 599 struct pf_os_fingerprint { 600 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 601 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 602 u_int16_t fp_wsize; /* TCP window size */ 603 u_int16_t fp_psize; /* ip->ip_len */ 604 u_int16_t fp_mss; /* TCP MSS */ 605 u_int16_t fp_flags; 606 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 607 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 608 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 609 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 610 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 611 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 612 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 613 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 614 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 615 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 616 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 617 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 618 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 619 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 620 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 621 u_int8_t fp_optcnt; /* TCP option count */ 622 u_int8_t fp_wscale; /* TCP window scaling */ 623 u_int8_t fp_ttl; /* IPv4 TTL */ 624 #define PF_OSFP_MAXTTL_OFFSET 40 625 /* TCP options packing */ 626 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 627 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 628 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 629 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 630 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 631 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 632 #define PF_OSFP_MAX_OPTS \ 633 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 634 / PF_OSFP_TCPOPT_BITS 635 636 SLIST_ENTRY(pf_os_fingerprint) fp_next; 637 }; 638 639 struct pf_osfp_ioctl { 640 struct pf_osfp_entry fp_os; 641 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 642 u_int16_t fp_wsize; /* TCP window size */ 643 u_int16_t fp_psize; /* ip->ip_len */ 644 u_int16_t fp_mss; /* TCP MSS */ 645 u_int16_t fp_flags; 646 u_int8_t fp_optcnt; /* TCP option count */ 647 u_int8_t fp_wscale; /* TCP window scaling */ 648 u_int8_t fp_ttl; /* IPv4 TTL */ 649 650 int fp_getnum; /* DIOCOSFPGET number */ 651 }; 652 653 654 union pf_rule_ptr { 655 struct pf_rule *ptr __attribute__((aligned(8))); 656 u_int32_t nr __attribute__((aligned(8))); 657 } __attribute__((aligned(8))); 658 659 #define PF_ANCHOR_NAME_SIZE 64 660 661 struct pf_rule { 662 struct pf_rule_addr src; 663 struct pf_rule_addr dst; 664 #define PF_SKIP_IFP 0 665 #define PF_SKIP_DIR 1 666 #define PF_SKIP_AF 2 667 #define PF_SKIP_PROTO 3 668 #define PF_SKIP_SRC_ADDR 4 669 #define PF_SKIP_SRC_PORT 5 670 #define PF_SKIP_DST_ADDR 6 671 #define PF_SKIP_DST_PORT 7 672 #define PF_SKIP_COUNT 8 673 union pf_rule_ptr skip[PF_SKIP_COUNT]; 674 #define PF_RULE_LABEL_SIZE 64 675 char label[PF_RULE_LABEL_SIZE]; 676 #define PF_QNAME_SIZE 64 677 char ifname[IFNAMSIZ]; 678 char qname[PF_QNAME_SIZE]; 679 char pqname[PF_QNAME_SIZE]; 680 #define PF_TAG_NAME_SIZE 64 681 char tagname[PF_TAG_NAME_SIZE]; 682 char match_tagname[PF_TAG_NAME_SIZE]; 683 684 char overload_tblname[PF_TABLE_NAME_SIZE]; 685 686 TAILQ_ENTRY(pf_rule) entries; 687 #if !defined(__LP64__) 688 u_int32_t _pad[2]; 689 #endif /* !__LP64__ */ 690 struct pf_pool rpool; 691 692 u_int64_t evaluations; 693 u_int64_t packets[2]; 694 u_int64_t bytes[2]; 695 696 u_int64_t ticket; 697 #define PF_OWNER_NAME_SIZE 64 698 char owner[PF_OWNER_NAME_SIZE]; 699 u_int32_t priority; 700 701 #ifdef KERNEL 702 struct pfi_kif *kif __attribute__((aligned(8))); 703 #else /* !KERNEL */ 704 void *kif __attribute__((aligned(8))); 705 #endif /* !KERNEL */ 706 struct pf_anchor *anchor __attribute__((aligned(8))); 707 #ifdef KERNEL 708 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 709 #else /* !KERNEL */ 710 void *overload_tbl __attribute__((aligned(8))); 711 #endif /* !KERNEL */ 712 713 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 714 715 unsigned int rtableid; 716 u_int32_t timeout[PFTM_MAX]; 717 u_int32_t states; 718 u_int32_t max_states; 719 u_int32_t src_nodes; 720 u_int32_t max_src_nodes; 721 u_int32_t max_src_states; 722 u_int32_t max_src_conn; 723 struct { 724 u_int32_t limit; 725 u_int32_t seconds; 726 } max_src_conn_rate; 727 u_int32_t qid; 728 u_int32_t pqid; 729 u_int32_t rt_listid; 730 u_int32_t nr; 731 u_int32_t prob; 732 uid_t cuid; 733 pid_t cpid; 734 735 u_int16_t return_icmp; 736 u_int16_t return_icmp6; 737 u_int16_t max_mss; 738 u_int16_t tag; 739 u_int16_t match_tag; 740 741 struct pf_rule_uid uid; 742 struct pf_rule_gid gid; 743 744 u_int32_t rule_flag; 745 u_int8_t action; 746 u_int8_t direction; 747 u_int8_t log; 748 u_int8_t logif; 749 u_int8_t quick; 750 u_int8_t ifnot; 751 u_int8_t match_tag_not; 752 u_int8_t natpass; 753 754 #define PF_STATE_NORMAL 0x1 755 #define PF_STATE_MODULATE 0x2 756 #define PF_STATE_SYNPROXY 0x3 757 u_int8_t keep_state; 758 sa_family_t af; 759 u_int8_t proto; 760 u_int8_t type; 761 u_int8_t code; 762 u_int8_t flags; 763 u_int8_t flagset; 764 u_int8_t min_ttl; 765 u_int8_t allow_opts; 766 u_int8_t rt; 767 u_int8_t return_ttl; 768 769 /* service class categories */ 770 #define SCIDX_MASK 0x0f 771 #define SC_BE 0x10 772 #define SC_BK_SYS 0x11 773 #define SC_BK 0x12 774 #define SC_RD 0x13 775 #define SC_OAM 0x14 776 #define SC_AV 0x15 777 #define SC_RV 0x16 778 #define SC_VI 0x17 779 #define SC_VO 0x18 780 #define SC_CTL 0x19 781 782 /* diffserve code points */ 783 #define DSCP_MASK 0xfc 784 #define DSCP_CUMASK 0x03 785 #define DSCP_EF 0xb8 786 #define DSCP_AF11 0x28 787 #define DSCP_AF12 0x30 788 #define DSCP_AF13 0x38 789 #define DSCP_AF21 0x48 790 #define DSCP_AF22 0x50 791 #define DSCP_AF23 0x58 792 #define DSCP_AF31 0x68 793 #define DSCP_AF32 0x70 794 #define DSCP_AF33 0x78 795 #define DSCP_AF41 0x88 796 #define DSCP_AF42 0x90 797 #define DSCP_AF43 0x98 798 #define AF_CLASSMASK 0xe0 799 #define AF_DROPPRECMASK 0x18 800 u_int8_t tos; 801 u_int8_t anchor_relative; 802 u_int8_t anchor_wildcard; 803 804 #define PF_FLUSH 0x01 805 #define PF_FLUSH_GLOBAL 0x02 806 u_int8_t flush; 807 808 u_int8_t proto_variant; 809 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 810 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 811 u_int32_t dnpipe; 812 u_int32_t dntype; 813 }; 814 815 /* pf device identifiers */ 816 #define PFDEV_PF 0 817 #define PFDEV_PFM 1 818 #define PFDEV_MAX 2 819 820 /* rule flags */ 821 #define PFRULE_DROP 0x0000 822 #define PFRULE_RETURNRST 0x0001 823 #define PFRULE_FRAGMENT 0x0002 824 #define PFRULE_RETURNICMP 0x0004 825 #define PFRULE_RETURN 0x0008 826 #define PFRULE_NOSYNC 0x0010 827 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 828 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 829 830 /* scrub flags */ 831 #define PFRULE_NODF 0x0100 832 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 833 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 834 #define PFRULE_RANDOMID 0x0800 835 #define PFRULE_REASSEMBLE_TCP 0x1000 836 837 /* rule flags for TOS/DSCP/service class differentiation */ 838 #define PFRULE_TOS 0x2000 839 #define PFRULE_DSCP 0x4000 840 #define PFRULE_SC 0x8000 841 842 /* rule flags again */ 843 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 844 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 845 846 #define PFSTATE_HIWAT 10000 /* default state table size */ 847 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 848 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 849 850 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 851 852 enum pf_extmap { 853 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 854 PF_EXTMAP_AD, /* Address-dependent mapping */ 855 PF_EXTMAP_EI /* Endpoint-independent mapping */ 856 }; 857 858 enum pf_extfilter { 859 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 860 PF_EXTFILTER_AD, /* Address-dependent filtering */ 861 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 862 }; 863 864 struct pf_threshold { 865 u_int32_t limit; 866 #define PF_THRESHOLD_MULT 1000 867 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 868 u_int32_t seconds; 869 u_int32_t count; 870 u_int32_t last; 871 }; 872 873 struct pf_src_node { 874 RB_ENTRY(pf_src_node) entry; 875 struct pf_addr addr; 876 struct pf_addr raddr; 877 union pf_rule_ptr rule; 878 #ifdef KERNEL 879 struct pfi_kif *kif; 880 #else /* !KERNEL */ 881 void *kif; 882 #endif /* !KERNEL */ 883 u_int64_t bytes[2]; 884 u_int64_t packets[2]; 885 u_int32_t states; 886 u_int32_t conn; 887 struct pf_threshold conn_rate; 888 u_int64_t creation; 889 u_int64_t expire; 890 sa_family_t af; 891 u_int8_t ruletype; 892 }; 893 894 #define PFSNODE_HIWAT 10000 /* default source node table size */ 895 896 #ifdef KERNEL 897 struct pf_state_scrub { 898 struct timeval pfss_last; /* time received last packet */ 899 u_int32_t pfss_tsecr; /* last echoed timestamp */ 900 u_int32_t pfss_tsval; /* largest timestamp */ 901 u_int32_t pfss_tsval0; /* original timestamp */ 902 u_int16_t pfss_flags; 903 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 904 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 905 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 906 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 907 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 908 u_int8_t pfss_ttl; /* stashed TTL */ 909 u_int8_t pad; 910 u_int32_t pfss_ts_mod; /* timestamp modulation */ 911 }; 912 #endif /* KERNEL */ 913 914 union pf_state_xport { 915 u_int16_t port; 916 u_int16_t call_id; 917 u_int32_t spi; 918 }; 919 920 struct pf_state_host { 921 struct pf_addr addr; 922 union pf_state_xport xport; 923 }; 924 925 #ifdef KERNEL 926 struct pf_state_peer { 927 u_int32_t seqlo; /* Max sequence number sent */ 928 u_int32_t seqhi; /* Max the other end ACKd + win */ 929 u_int32_t seqdiff; /* Sequence number modulator */ 930 u_int16_t max_win; /* largest window (pre scaling) */ 931 u_int8_t state; /* active state level */ 932 u_int8_t wscale; /* window scaling factor */ 933 u_int16_t mss; /* Maximum segment size option */ 934 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 935 struct pf_state_scrub *scrub; /* state is scrubbed */ 936 u_int8_t pad[3]; 937 }; 938 939 TAILQ_HEAD(pf_state_queue, pf_state); 940 941 struct pf_state; 942 struct pf_pdesc; 943 struct pf_app_state; 944 945 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 946 struct pfi_kif *); 947 948 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 949 950 struct pf_pptp_state { 951 struct pf_state *grev1_state; 952 }; 953 954 struct pf_grev1_state { 955 struct pf_state *pptp_state; 956 }; 957 958 struct pf_ike_state { 959 u_int64_t cookie; 960 }; 961 962 struct pf_app_state { 963 pf_app_handler handler; 964 pf_app_compare compare_lan_ext; 965 pf_app_compare compare_ext_gwy; 966 union { 967 struct pf_pptp_state pptp; 968 struct pf_grev1_state grev1; 969 struct pf_ike_state ike; 970 } u; 971 }; 972 973 /* keep synced with struct pf_state, used in RB_FIND */ 974 struct pf_state_key_cmp { 975 struct pf_state_host lan; 976 struct pf_state_host gwy; 977 struct pf_state_host ext; 978 sa_family_t af; 979 u_int8_t proto; 980 u_int8_t direction; 981 u_int8_t proto_variant; 982 struct pf_app_state *app_state; 983 }; 984 985 TAILQ_HEAD(pf_statelist, pf_state); 986 987 struct pf_state_key { 988 struct pf_state_host lan; 989 struct pf_state_host gwy; 990 struct pf_state_host ext; 991 sa_family_t af; 992 u_int8_t proto; 993 u_int8_t direction; 994 u_int8_t proto_variant; 995 struct pf_app_state *app_state; 996 u_int32_t flowsrc; 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 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1350 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_IP_FRAG 0x0004 /* This is a fragment */ 1432 sa_family_t af; 1433 u_int8_t proto; 1434 u_int8_t tos; 1435 u_int8_t proto_variant; 1436 mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ 1437 u_int32_t pktflags; /* mbuf packet flags (PKTF) */ 1438 u_int32_t flowsrc; /* flow source (FLOWSRC) */ 1439 u_int32_t flowhash; /* flow hash to identify the sender */ 1440 }; 1441 #endif /* KERNEL */ 1442 1443 /* flags for RDR options */ 1444 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1445 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1446 1447 /* Reasons code for passing/dropping a packet */ 1448 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1449 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1450 #define PFRES_FRAG 2 /* Dropping following fragment */ 1451 #define PFRES_SHORT 3 /* Dropping short packet */ 1452 #define PFRES_NORM 4 /* Dropping by normalizer */ 1453 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1454 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1455 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1456 #define PFRES_IPOPTIONS 8 /* IP option */ 1457 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1458 #define PFRES_BADSTATE 10 /* State mismatch */ 1459 #define PFRES_STATEINS 11 /* State insertion failure */ 1460 #define PFRES_MAXSTATES 12 /* State limit */ 1461 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1462 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1463 #define PFRES_DUMMYNET 15 /* Dummynet */ 1464 #define PFRES_MAX 16 /* total+1 */ 1465 1466 #define PFRES_NAMES { \ 1467 "match", \ 1468 "bad-offset", \ 1469 "fragment", \ 1470 "short", \ 1471 "normalize", \ 1472 "memory", \ 1473 "bad-timestamp", \ 1474 "congestion", \ 1475 "ip-option", \ 1476 "proto-cksum", \ 1477 "state-mismatch", \ 1478 "state-insert", \ 1479 "state-limit", \ 1480 "src-limit", \ 1481 "synproxy", \ 1482 "dummynet", \ 1483 NULL \ 1484 } 1485 1486 /* Counters for other things we want to keep track of */ 1487 #define LCNT_STATES 0 /* states */ 1488 #define LCNT_SRCSTATES 1 /* max-src-states */ 1489 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1490 #define LCNT_SRCCONN 3 /* max-src-conn */ 1491 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1492 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1493 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1494 #define LCNT_MAX 7 /* total+1 */ 1495 1496 #define LCNT_NAMES { \ 1497 "max states per rule", \ 1498 "max-src-states", \ 1499 "max-src-nodes", \ 1500 "max-src-conn", \ 1501 "max-src-conn-rate", \ 1502 "overload table insertion", \ 1503 "overload flush states", \ 1504 NULL \ 1505 } 1506 1507 /* UDP state enumeration */ 1508 #define PFUDPS_NO_TRAFFIC 0 1509 #define PFUDPS_SINGLE 1 1510 #define PFUDPS_MULTIPLE 2 1511 1512 #define PFUDPS_NSTATES 3 /* number of state levels */ 1513 1514 #define PFUDPS_NAMES { \ 1515 "NO_TRAFFIC", \ 1516 "SINGLE", \ 1517 "MULTIPLE", \ 1518 NULL \ 1519 } 1520 1521 /* GREv1 protocol state enumeration */ 1522 #define PFGRE1S_NO_TRAFFIC 0 1523 #define PFGRE1S_INITIATING 1 1524 #define PFGRE1S_ESTABLISHED 2 1525 1526 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1527 1528 #define PFGRE1S_NAMES { \ 1529 "NO_TRAFFIC", \ 1530 "INITIATING", \ 1531 "ESTABLISHED", \ 1532 NULL \ 1533 } 1534 1535 #define PFESPS_NO_TRAFFIC 0 1536 #define PFESPS_INITIATING 1 1537 #define PFESPS_ESTABLISHED 2 1538 1539 #define PFESPS_NSTATES 3 /* number of state levels */ 1540 1541 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1542 1543 /* Other protocol state enumeration */ 1544 #define PFOTHERS_NO_TRAFFIC 0 1545 #define PFOTHERS_SINGLE 1 1546 #define PFOTHERS_MULTIPLE 2 1547 1548 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1549 1550 #define PFOTHERS_NAMES { \ 1551 "NO_TRAFFIC", \ 1552 "SINGLE", \ 1553 "MULTIPLE", \ 1554 NULL \ 1555 } 1556 1557 #define FCNT_STATE_SEARCH 0 1558 #define FCNT_STATE_INSERT 1 1559 #define FCNT_STATE_REMOVALS 2 1560 #define FCNT_MAX 3 1561 1562 #define SCNT_SRC_NODE_SEARCH 0 1563 #define SCNT_SRC_NODE_INSERT 1 1564 #define SCNT_SRC_NODE_REMOVALS 2 1565 #define SCNT_MAX 3 1566 1567 #ifdef KERNEL 1568 #define ACTION_SET(a, x) \ 1569 do { \ 1570 if ((a) != NULL) \ 1571 *(a) = (x); \ 1572 } while (0) 1573 1574 #define REASON_SET(a, x) \ 1575 do { \ 1576 if ((a) != NULL) \ 1577 *(a) = (x); \ 1578 if (x < PFRES_MAX) \ 1579 pf_status.counters[x]++; \ 1580 } while (0) 1581 #endif /* KERNEL */ 1582 1583 struct pf_status { 1584 u_int64_t counters[PFRES_MAX]; 1585 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1586 u_int64_t fcounters[FCNT_MAX]; 1587 u_int64_t scounters[SCNT_MAX]; 1588 u_int64_t pcounters[2][2][3]; 1589 u_int64_t bcounters[2][2]; 1590 u_int64_t stateid; 1591 u_int32_t running; 1592 u_int32_t states; 1593 u_int32_t src_nodes; 1594 u_int64_t since __attribute__((aligned(8))); 1595 u_int32_t debug; 1596 u_int32_t hostid; 1597 char ifname[IFNAMSIZ]; 1598 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1599 }; 1600 1601 struct cbq_opts { 1602 u_int32_t minburst; 1603 u_int32_t maxburst; 1604 u_int32_t pktsize; 1605 u_int32_t maxpktsize; 1606 u_int32_t ns_per_byte; 1607 u_int32_t maxidle; 1608 int32_t minidle; 1609 u_int32_t offtime; 1610 u_int32_t flags; 1611 }; 1612 1613 struct priq_opts { 1614 u_int32_t flags; 1615 }; 1616 1617 struct qfq_opts { 1618 u_int32_t flags; 1619 u_int32_t lmax; 1620 }; 1621 1622 struct hfsc_opts { 1623 /* real-time service curve */ 1624 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1625 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1626 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1627 u_int32_t rtsc_fl; /* service curve flags */ 1628 #if !defined(__LP64__) 1629 u_int32_t _pad; 1630 #endif /* !__LP64__ */ 1631 /* link-sharing service curve */ 1632 u_int64_t lssc_m1; 1633 u_int64_t lssc_d; 1634 u_int64_t lssc_m2; 1635 u_int32_t lssc_fl; 1636 #if !defined(__LP64__) 1637 u_int32_t __pad; 1638 #endif /* !__LP64__ */ 1639 /* upper-limit service curve */ 1640 u_int64_t ulsc_m1; 1641 u_int64_t ulsc_d; 1642 u_int64_t ulsc_m2; 1643 u_int32_t ulsc_fl; 1644 u_int32_t flags; /* scheduler flags */ 1645 }; 1646 1647 struct fairq_opts { 1648 u_int32_t nbuckets; /* hash buckets */ 1649 u_int32_t flags; 1650 u_int64_t hogs_m1; /* hog detection bandwidth */ 1651 1652 /* link-sharing service curve */ 1653 u_int64_t lssc_m1; 1654 u_int64_t lssc_d; 1655 u_int64_t lssc_m2; 1656 }; 1657 1658 /* bandwidth types */ 1659 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1660 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1661 1662 /* ALTQ rule flags */ 1663 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1664 1665 /* queue rule flags */ 1666 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1667 1668 struct pf_altq { 1669 char ifname[IFNAMSIZ]; 1670 1671 /* discipline-specific state */ 1672 void *altq_disc __attribute__((aligned(8))); 1673 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1674 #if !defined(__LP64__) 1675 u_int32_t _pad[2]; 1676 #endif /* !__LP64__ */ 1677 1678 u_int32_t aflags; /* ALTQ rule flags */ 1679 u_int32_t bwtype; /* bandwidth type */ 1680 1681 /* scheduler spec */ 1682 u_int32_t scheduler; /* scheduler type */ 1683 u_int32_t tbrsize; /* tokenbucket regulator size */ 1684 u_int64_t ifbandwidth; /* interface bandwidth */ 1685 1686 /* queue spec */ 1687 char qname[PF_QNAME_SIZE]; /* queue name */ 1688 char parent[PF_QNAME_SIZE]; /* parent name */ 1689 u_int32_t parent_qid; /* parent queue id */ 1690 u_int32_t qrflags; /* queue rule flags */ 1691 union { 1692 u_int32_t priority; /* priority */ 1693 u_int32_t weight; /* weight */ 1694 }; 1695 u_int32_t qlimit; /* queue size limit */ 1696 u_int32_t flags; /* misc flags */ 1697 #if !defined(__LP64__) 1698 u_int32_t __pad; 1699 #endif /* !__LP64__ */ 1700 u_int64_t bandwidth; /* queue bandwidth */ 1701 union { 1702 struct cbq_opts cbq_opts; 1703 struct priq_opts priq_opts; 1704 struct hfsc_opts hfsc_opts; 1705 struct fairq_opts fairq_opts; 1706 struct qfq_opts qfq_opts; 1707 } pq_u; 1708 1709 u_int32_t qid; /* return value */ 1710 }; 1711 1712 struct pf_tagname { 1713 TAILQ_ENTRY(pf_tagname) entries; 1714 char name[PF_TAG_NAME_SIZE]; 1715 u_int16_t tag; 1716 int ref; 1717 }; 1718 1719 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1720 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1721 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1722 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1723 1724 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1725 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1726 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1727 1728 /* 1729 * ioctl parameter structures 1730 */ 1731 1732 struct pfioc_pooladdr { 1733 u_int32_t action; 1734 u_int32_t ticket; 1735 u_int32_t nr; 1736 u_int32_t r_num; 1737 u_int8_t r_action; 1738 u_int8_t r_last; 1739 u_int8_t af; 1740 char anchor[MAXPATHLEN]; 1741 struct pf_pooladdr addr; 1742 }; 1743 1744 struct pfioc_rule { 1745 u_int32_t action; 1746 u_int32_t ticket; 1747 u_int32_t pool_ticket; 1748 u_int32_t nr; 1749 char anchor[MAXPATHLEN]; 1750 char anchor_call[MAXPATHLEN]; 1751 struct pf_rule rule; 1752 }; 1753 1754 struct pfioc_natlook { 1755 struct pf_addr saddr; 1756 struct pf_addr daddr; 1757 struct pf_addr rsaddr; 1758 struct pf_addr rdaddr; 1759 union pf_state_xport sxport; 1760 union pf_state_xport dxport; 1761 union pf_state_xport rsxport; 1762 union pf_state_xport rdxport; 1763 sa_family_t af; 1764 u_int8_t proto; 1765 u_int8_t proto_variant; 1766 u_int8_t direction; 1767 }; 1768 1769 struct pfioc_state { 1770 struct pfsync_state state; 1771 }; 1772 1773 struct pfioc_src_node_kill { 1774 /* XXX returns the number of src nodes killed in psnk_af */ 1775 sa_family_t psnk_af; 1776 struct pf_rule_addr psnk_src; 1777 struct pf_rule_addr psnk_dst; 1778 }; 1779 1780 struct pfioc_state_addr_kill { 1781 struct pf_addr_wrap addr; 1782 u_int8_t reserved_[3]; 1783 u_int8_t neg; 1784 union pf_rule_xport xport; 1785 }; 1786 1787 struct pfioc_state_kill { 1788 /* XXX returns the number of states killed in psk_af */ 1789 sa_family_t psk_af; 1790 u_int8_t psk_proto; 1791 u_int8_t psk_proto_variant; 1792 u_int8_t _pad; 1793 struct pfioc_state_addr_kill psk_src; 1794 struct pfioc_state_addr_kill psk_dst; 1795 char psk_ifname[IFNAMSIZ]; 1796 char psk_ownername[PF_OWNER_NAME_SIZE]; 1797 }; 1798 1799 struct pfioc_states { 1800 int ps_len; 1801 union { 1802 caddr_t psu_buf; 1803 struct pfsync_state *psu_states; 1804 } ps_u __attribute__((aligned(8))); 1805 #define ps_buf ps_u.psu_buf 1806 #define ps_states ps_u.psu_states 1807 }; 1808 1809 #ifdef KERNEL 1810 struct pfioc_states_32 { 1811 int ps_len; 1812 union { 1813 user32_addr_t psu_buf; 1814 user32_addr_t psu_states; 1815 } ps_u __attribute__((aligned(8))); 1816 }; 1817 1818 struct pfioc_states_64 { 1819 int ps_len; 1820 union { 1821 user64_addr_t psu_buf; 1822 user64_addr_t psu_states; 1823 } ps_u __attribute__((aligned(8))); 1824 }; 1825 #endif /* KERNEL */ 1826 1827 #define PFTOK_PROCNAME_LEN 64 1828 #pragma pack(1) 1829 struct pfioc_token { 1830 u_int64_t token_value; 1831 u_int64_t timestamp; 1832 pid_t pid; 1833 char proc_name[PFTOK_PROCNAME_LEN]; 1834 }; 1835 #pragma pack() 1836 1837 struct pfioc_kernel_token { 1838 SLIST_ENTRY(pfioc_kernel_token) next; 1839 struct pfioc_token token; 1840 }; 1841 1842 struct pfioc_remove_token { 1843 u_int64_t token_value; 1844 u_int64_t refcount; 1845 }; 1846 1847 struct pfioc_tokens { 1848 int size; 1849 union { 1850 caddr_t pgtu_buf; 1851 struct pfioc_token *pgtu_tokens; 1852 } pgt_u __attribute__((aligned(8))); 1853 #define pgt_buf pgt_u.pgtu_buf 1854 #define pgt_tokens pgt_u.pgtu_tokens 1855 }; 1856 1857 #ifdef KERNEL 1858 struct pfioc_tokens_32 { 1859 int size; 1860 union { 1861 user32_addr_t pgtu_buf; 1862 user32_addr_t pgtu_tokens; 1863 } pgt_u __attribute__((aligned(8))); 1864 }; 1865 1866 struct pfioc_tokens_64 { 1867 int size; 1868 union { 1869 user64_addr_t pgtu_buf; 1870 user64_addr_t pgtu_tokens; 1871 } pgt_u __attribute__((aligned(8))); 1872 }; 1873 #endif /* KERNEL */ 1874 1875 1876 struct pfioc_src_nodes { 1877 int psn_len; 1878 union { 1879 caddr_t psu_buf; 1880 struct pf_src_node *psu_src_nodes; 1881 } psn_u __attribute__((aligned(8))); 1882 #define psn_buf psn_u.psu_buf 1883 #define psn_src_nodes psn_u.psu_src_nodes 1884 }; 1885 1886 #ifdef KERNEL 1887 struct pfioc_src_nodes_32 { 1888 int psn_len; 1889 union { 1890 user32_addr_t psu_buf; 1891 user32_addr_t psu_src_nodes; 1892 } psn_u __attribute__((aligned(8))); 1893 }; 1894 1895 struct pfioc_src_nodes_64 { 1896 int psn_len; 1897 union { 1898 user64_addr_t psu_buf; 1899 user64_addr_t psu_src_nodes; 1900 } psn_u __attribute__((aligned(8))); 1901 }; 1902 #endif /* KERNEL */ 1903 1904 struct pfioc_if { 1905 char ifname[IFNAMSIZ]; 1906 }; 1907 1908 struct pfioc_tm { 1909 int timeout; 1910 int seconds; 1911 }; 1912 1913 struct pfioc_limit { 1914 int index; 1915 unsigned limit; 1916 }; 1917 1918 struct pfioc_altq { 1919 u_int32_t action; 1920 u_int32_t ticket; 1921 u_int32_t nr; 1922 struct pf_altq altq __attribute__((aligned(8))); 1923 }; 1924 1925 struct pfioc_qstats { 1926 u_int32_t ticket; 1927 u_int32_t nr; 1928 void *buf __attribute__((aligned(8))); 1929 int nbytes __attribute__((aligned(8))); 1930 u_int8_t scheduler; 1931 }; 1932 1933 struct pfioc_ruleset { 1934 u_int32_t nr; 1935 char path[MAXPATHLEN]; 1936 char name[PF_ANCHOR_NAME_SIZE]; 1937 }; 1938 1939 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1940 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1941 struct pfioc_trans { 1942 int size; /* number of elements */ 1943 int esize; /* size of each element in bytes */ 1944 struct pfioc_trans_e { 1945 int rs_num; 1946 char anchor[MAXPATHLEN]; 1947 u_int32_t ticket; 1948 } *array __attribute__((aligned(8))); 1949 }; 1950 1951 #ifdef KERNEL 1952 struct pfioc_trans_32 { 1953 int size; /* number of elements */ 1954 int esize; /* size of each element in bytes */ 1955 user32_addr_t array __attribute__((aligned(8))); 1956 }; 1957 1958 struct pfioc_trans_64 { 1959 int size; /* number of elements */ 1960 int esize; /* size of each element in bytes */ 1961 user64_addr_t array __attribute__((aligned(8))); 1962 }; 1963 #endif /* KERNEL */ 1964 1965 1966 #define PFR_FLAG_ATOMIC 0x00000001 1967 #define PFR_FLAG_DUMMY 0x00000002 1968 #define PFR_FLAG_FEEDBACK 0x00000004 1969 #define PFR_FLAG_CLSTATS 0x00000008 1970 #define PFR_FLAG_ADDRSTOO 0x00000010 1971 #define PFR_FLAG_REPLACE 0x00000020 1972 #define PFR_FLAG_ALLRSETS 0x00000040 1973 #define PFR_FLAG_ALLMASK 0x0000007F 1974 #ifdef KERNEL 1975 #define PFR_FLAG_USERIOCTL 0x10000000 1976 #endif /* KERNEL */ 1977 1978 struct pfioc_table { 1979 struct pfr_table pfrio_table; 1980 void *pfrio_buffer __attribute__((aligned(8))); 1981 int pfrio_esize __attribute__((aligned(8))); 1982 int pfrio_size; 1983 int pfrio_size2; 1984 int pfrio_nadd; 1985 int pfrio_ndel; 1986 int pfrio_nchange; 1987 int pfrio_flags; 1988 u_int32_t pfrio_ticket; 1989 }; 1990 #define pfrio_exists pfrio_nadd 1991 #define pfrio_nzero pfrio_nadd 1992 #define pfrio_nmatch pfrio_nadd 1993 #define pfrio_naddr pfrio_size2 1994 #define pfrio_setflag pfrio_size2 1995 #define pfrio_clrflag pfrio_nadd 1996 1997 #ifdef KERNEL 1998 struct pfioc_table_32 { 1999 struct pfr_table pfrio_table; 2000 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 2001 int pfrio_esize __attribute__((aligned(8))); 2002 int pfrio_size; 2003 int pfrio_size2; 2004 int pfrio_nadd; 2005 int pfrio_ndel; 2006 int pfrio_nchange; 2007 int pfrio_flags; 2008 u_int32_t pfrio_ticket; 2009 }; 2010 2011 struct pfioc_table_64 { 2012 struct pfr_table pfrio_table; 2013 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2014 int pfrio_esize __attribute__((aligned(8))); 2015 int pfrio_size; 2016 int pfrio_size2; 2017 int pfrio_nadd; 2018 int pfrio_ndel; 2019 int pfrio_nchange; 2020 int pfrio_flags; 2021 u_int32_t pfrio_ticket; 2022 }; 2023 #endif /* KERNEL */ 2024 2025 struct pfioc_iface { 2026 char pfiio_name[IFNAMSIZ]; 2027 void *pfiio_buffer __attribute__((aligned(8))); 2028 int pfiio_esize __attribute__((aligned(8))); 2029 int pfiio_size; 2030 int pfiio_nzero; 2031 int pfiio_flags; 2032 }; 2033 2034 #ifdef KERNEL 2035 struct pfioc_iface_32 { 2036 char pfiio_name[IFNAMSIZ]; 2037 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2038 int pfiio_esize __attribute__((aligned(8))); 2039 int pfiio_size; 2040 int pfiio_nzero; 2041 int pfiio_flags; 2042 }; 2043 2044 struct pfioc_iface_64 { 2045 char pfiio_name[IFNAMSIZ]; 2046 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2047 int pfiio_esize __attribute__((aligned(8))); 2048 int pfiio_size; 2049 int pfiio_nzero; 2050 int pfiio_flags; 2051 }; 2052 #endif /* KERNEL */ 2053 2054 struct pf_ifspeed { 2055 char ifname[IFNAMSIZ]; 2056 u_int64_t baudrate; 2057 }; 2058 2059 /* 2060 * ioctl operations 2061 */ 2062 2063 #define DIOCSTART _IO ('D', 1) 2064 #define DIOCSTOP _IO ('D', 2) 2065 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2066 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2067 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2068 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2069 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2070 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2071 /* XXX cut 10 - 17 */ 2072 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2073 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2074 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2075 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2076 #define DIOCCLRSTATUS _IO ('D', 22) 2077 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2078 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2079 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2080 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2081 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2082 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2083 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2084 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2085 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2086 #define DIOCCLRRULECTRS _IO ('D', 38) 2087 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2088 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2089 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2090 #define DIOCSTARTALTQ _IO ('D', 42) 2091 #define DIOCSTOPALTQ _IO ('D', 43) 2092 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2093 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2094 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2095 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2096 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2097 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2098 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2099 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2100 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2101 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2102 /* XXX cut 55 - 57 */ 2103 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2104 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2105 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2106 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2107 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2108 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2109 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2110 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2111 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2112 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2113 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2114 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2115 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2116 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2117 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2118 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2119 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2120 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2121 #define DIOCOSFPFLUSH _IO('D', 78) 2122 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2123 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2124 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2125 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2126 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2127 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2128 #define DIOCCLRSRCNODES _IO('D', 85) 2129 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2130 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2131 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2132 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2133 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2134 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2135 2136 #ifdef KERNEL 2137 RB_HEAD(pf_src_tree, pf_src_node); 2138 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2139 pf_src_compare); 2140 extern struct pf_src_tree tree_src_tracking; 2141 2142 RB_HEAD(pf_state_tree_id, pf_state); 2143 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2144 entry_id, pf_state_compare_id); 2145 extern struct pf_state_tree_id tree_id; 2146 extern struct pf_state_queue state_list; 2147 2148 TAILQ_HEAD(pf_poolqueue, pf_pool); 2149 extern struct pf_poolqueue pf_pools[2]; 2150 extern struct pf_palist pf_pabuf; 2151 extern u_int32_t ticket_pabuf; 2152 #if PF_ALTQ 2153 TAILQ_HEAD(pf_altqqueue, pf_altq); 2154 extern struct pf_altqqueue pf_altqs[2]; 2155 extern u_int32_t ticket_altqs_active; 2156 extern u_int32_t ticket_altqs_inactive; 2157 extern int altqs_inactive_open; 2158 extern struct pf_altqqueue *pf_altqs_active; 2159 extern struct pf_altqqueue *pf_altqs_inactive; 2160 #endif /* PF_ALTQ */ 2161 extern struct pf_poolqueue *pf_pools_active; 2162 extern struct pf_poolqueue *pf_pools_inactive; 2163 2164 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2165 struct pf_addr_wrap *); 2166 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2167 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2168 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2169 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2170 2171 extern struct pool pf_src_tree_pl, pf_rule_pl; 2172 extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2173 extern struct pool pf_state_scrub_pl; 2174 #if PF_ALTQ 2175 extern struct pool pf_altq_pl; 2176 #endif /* PF_ALTQ */ 2177 extern struct pool pf_app_state_pl; 2178 2179 extern struct thread *pf_purge_thread; 2180 2181 __private_extern__ void pfinit(void); 2182 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2183 __private_extern__ void pf_purge_expired_src_nodes(void); 2184 __private_extern__ void pf_purge_expired_states(u_int32_t); 2185 __private_extern__ void pf_unlink_state(struct pf_state *); 2186 __private_extern__ void pf_free_state(struct pf_state *); 2187 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2188 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2189 struct pf_rule *, struct pf_addr *, sa_family_t); 2190 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2191 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2192 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2193 u_int, int *); 2194 __private_extern__ void pf_print_state(struct pf_state *); 2195 __private_extern__ void pf_print_flags(u_int8_t); 2196 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2197 u_int8_t); 2198 2199 extern struct ifnet *sync_ifp; 2200 extern struct pf_rule pf_default_rule; 2201 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2202 u_int8_t); 2203 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2204 2205 struct ip_fw_args; 2206 #if INET 2207 __private_extern__ int pf_test(int, struct ifnet *, struct mbuf **, 2208 struct ether_header *, struct ip_fw_args *); 2209 #endif /* INET */ 2210 2211 #if INET6 2212 __private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **, 2213 struct ether_header *, struct ip_fw_args *); 2214 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2215 struct pf_addr *, struct pf_addr *, u_int8_t); 2216 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2217 #endif /* INET6 */ 2218 2219 __private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *, 2220 struct mbuf *, int); 2221 __private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int, 2222 u_short *, u_short *, sa_family_t); 2223 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2224 __private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *, 2225 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2226 struct pf_ruleset *, struct pf_pdesc *); 2227 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2228 struct pf_addr *, struct pf_addr *, sa_family_t); 2229 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2230 struct pf_addr *, sa_family_t); 2231 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2232 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2233 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2234 union pf_state_xport *); 2235 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2236 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2237 2238 __private_extern__ void pf_normalize_init(void); 2239 __private_extern__ int pf_normalize_isempty(void); 2240 __private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, 2241 u_short *, struct pf_pdesc *); 2242 __private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, 2243 u_short *, struct pf_pdesc *); 2244 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, 2245 int, int, void *, struct pf_pdesc *); 2246 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2247 __private_extern__ int pf_normalize_tcp_init(struct mbuf *, int, 2248 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2249 struct pf_state_peer *); 2250 __private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int, 2251 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2252 struct pf_state_peer *, struct pf_state_peer *, int *); 2253 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2254 __private_extern__ void pf_purge_expired_fragments(void); 2255 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2256 struct pfi_kif *); 2257 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2258 struct pf_addr_wrap *); 2259 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2260 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2261 struct pf_state_key *); 2262 __private_extern__ void pfr_initialize(void); 2263 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2264 sa_family_t); 2265 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2266 sa_family_t, u_int64_t, int, int, int); 2267 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2268 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2269 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2270 struct pfi_dynaddr *); 2271 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2272 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2273 char *); 2274 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2275 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2276 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2277 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2278 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2279 int *, int); 2280 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2281 int *, int); 2282 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2283 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2284 int *, int); 2285 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2286 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2287 u_int64_t); 2288 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2289 int, int *, int); 2290 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2291 int, int *, int); 2292 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2293 int, int *, int *, int *, int *, int, u_int32_t); 2294 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2295 int *, int); 2296 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2297 int *, int); 2298 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2299 int, int *, int); 2300 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2301 int, int *, int); 2302 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2303 int); 2304 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2305 int); 2306 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2307 int *, int); 2308 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2309 int, int *, int *, u_int32_t, int); 2310 2311 extern struct pfi_kif *pfi_all; 2312 2313 __private_extern__ void pfi_initialize(void); 2314 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2315 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2316 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2317 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2318 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2319 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2320 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2321 sa_family_t); 2322 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2323 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2324 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2325 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2326 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2327 __private_extern__ int pfi_set_flags(const char *, int); 2328 __private_extern__ int pfi_clear_flags(const char *, int); 2329 2330 __private_extern__ u_int16_t pf_tagname2tag(char *); 2331 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2332 __private_extern__ void pf_tag_ref(u_int16_t); 2333 __private_extern__ void pf_tag_unref(u_int16_t); 2334 __private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *, 2335 int, unsigned int, struct pf_pdesc *); 2336 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2337 struct pf_rule **, struct pf_rule **, int *); 2338 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2339 struct pf_rule **, struct pf_rule **, int *); 2340 __private_extern__ u_int32_t pf_qname2qid(char *); 2341 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2342 __private_extern__ void pf_qid_unref(u_int32_t); 2343 2344 extern struct pf_status pf_status; 2345 extern struct pool pf_frent_pl, pf_frag_pl; 2346 2347 struct pf_pool_limit { 2348 void *pp; 2349 unsigned limit; 2350 }; 2351 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2352 2353 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2354 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2355 __private_extern__ int pf_ifaddr_hook(struct ifnet *); 2356 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2357 2358 /* 2359 * The following are defined with "private extern" storage class for 2360 * kernel, and "extern" for user-space. 2361 */ 2362 extern struct pf_anchor_global pf_anchors; 2363 extern struct pf_anchor pf_main_anchor; 2364 #define pf_main_ruleset pf_main_anchor.ruleset 2365 2366 extern int pf_is_enabled; 2367 #define PF_IS_ENABLED (pf_is_enabled != 0) 2368 extern u_int32_t pf_hash_seed; 2369 2370 #if PF_ALTQ 2371 extern u_int32_t altq_allowed; 2372 #endif /* PF_ALTQ */ 2373 2374 /* these ruleset functions can be linked into userland programs (pfctl) */ 2375 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2376 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2377 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2378 const struct pf_ruleset *, const char *); 2379 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2380 const struct pf_rule *, struct pfioc_rule *); 2381 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2382 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2383 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2384 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2385 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2386 const char *, int, int *); 2387 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2388 __private_extern__ void pf_rs_initialize(void); 2389 2390 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2391 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2392 struct mbuf *, int, const struct tcphdr *); 2393 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2394 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2395 __private_extern__ void pf_osfp_flush(void); 2396 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2397 __private_extern__ void pf_osfp_initialize(void); 2398 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2399 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2400 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2401 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2402 #else /* !KERNEL */ 2403 extern struct pf_anchor_global pf_anchors; 2404 extern struct pf_anchor pf_main_anchor; 2405 #define pf_main_ruleset pf_main_anchor.ruleset 2406 2407 /* these ruleset functions can be linked into userland programs (pfctl) */ 2408 extern int pf_get_ruleset_number(u_int8_t); 2409 extern void pf_init_ruleset(struct pf_ruleset *); 2410 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2411 const char *); 2412 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2413 struct pfioc_rule *); 2414 extern void pf_anchor_remove(struct pf_rule *); 2415 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2416 extern struct pf_anchor *pf_find_anchor(const char *); 2417 extern struct pf_ruleset *pf_find_ruleset(const char *); 2418 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2419 const char *, int, int *); 2420 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2421 extern void pf_rs_initialize(void); 2422 #endif /* !KERNEL */ 2423 2424 #ifdef __cplusplus 2425 } 2426 #endif 2427 #endif /* PF || !KERNEL */ 2428 #endif /* PRIVATE */ 2429 #endif /* _NET_PFVAR_H_ */ 2430