1 /* 2 * Copyright (c) 2007-2017 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 #include <net/pf_pbuf.h> 95 96 97 #if BYTE_ORDER == BIG_ENDIAN 98 #define htobe64(x) (x) 99 #else /* LITTLE ENDIAN */ 100 #define htobe64(x) __DARWIN_OSSwapInt64(x) 101 #endif /* LITTLE_ENDIAN */ 102 103 #define be64toh(x) htobe64(x) 104 105 extern lck_rw_t *pf_perim_lock; 106 extern lck_mtx_t *pf_lock; 107 108 struct pool { 109 struct zone *pool_zone; /* pointer to backend zone */ 110 const char *pool_name; /* name of pool */ 111 unsigned int pool_count; /* # of outstanding elements */ 112 unsigned int pool_hiwat; /* high watermark */ 113 unsigned int pool_limit; /* hard limit */ 114 unsigned int pool_fails; /* # of failed allocs due to limit */ 115 }; 116 117 #define PR_NOWAIT FALSE 118 #define PR_WAITOK TRUE 119 120 __private_extern__ void pool_init(struct pool *, size_t, unsigned int, 121 unsigned int, int, const char *, void *); 122 __private_extern__ void pool_destroy(struct pool *); 123 __private_extern__ void pool_sethiwat(struct pool *, int); 124 __private_extern__ void pool_sethardlimit(struct pool *, int, 125 const char *, int); 126 __private_extern__ void *pool_get(struct pool *, int); 127 __private_extern__ void pool_put(struct pool *, void *); 128 __private_extern__ u_int64_t pf_time_second(void); 129 __private_extern__ u_int64_t pf_calendar_time_second(void); 130 #endif /* KERNEL */ 131 132 union sockaddr_union { 133 struct sockaddr sa; 134 struct sockaddr_in sin; 135 struct sockaddr_in6 sin6; 136 }; 137 138 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 139 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 140 141 #define PF_MD5_DIGEST_LENGTH 16 142 #ifdef MD5_DIGEST_LENGTH 143 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH 144 #error 145 #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */ 146 #endif /* MD5_DIGEST_LENGTH */ 147 148 #ifdef KERNEL 149 struct ip; 150 struct ip6_hdr; 151 struct tcphdr; 152 struct pf_grev1_hdr; 153 struct pf_esp_hdr; 154 #endif /* KERNEL */ 155 156 #define PF_GRE_PPTP_VARIANT 0x01 157 158 enum { PF_INOUT, PF_IN, PF_OUT }; 159 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 160 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, 161 PF_DUMMYNET, PF_NODUMMYNET, PF_NAT64, PF_NONAT64 }; 162 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 163 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET, 164 PF_RULESET_MAX }; 165 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 166 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 167 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 168 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 169 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 170 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 171 enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 172 173 /* 174 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 175 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 176 */ 177 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 178 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 179 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 180 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 181 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, 182 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, 183 PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 184 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 185 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 186 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED }; 187 188 /* PFTM default values */ 189 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 190 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 191 #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */ 192 #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */ 193 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 194 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 195 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 196 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 197 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 198 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 199 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 200 #define PFTM_GREv1_FIRST_PACKET_VAL 120 201 #define PFTM_GREv1_INITIATING_VAL 30 202 #define PFTM_GREv1_ESTABLISHED_VAL 1800 203 #define PFTM_ESP_FIRST_PACKET_VAL 120 204 #define PFTM_ESP_INITIATING_VAL 30 205 #define PFTM_ESP_ESTABLISHED_VAL 900 206 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 207 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 208 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 209 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 210 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 211 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 212 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 213 214 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 215 enum { PF_LIMIT_STATES, 216 PF_LIMIT_APP_STATES, 217 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 218 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 219 #define PF_POOL_IDMASK 0x0f 220 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 221 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 222 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 223 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 224 PF_ADDR_RANGE }; 225 #define PF_POOL_TYPEMASK 0x0f 226 #define PF_POOL_STICKYADDR 0x20 227 #define PF_WSCALE_FLAG 0x80 228 #define PF_WSCALE_MASK 0x0f 229 230 #define PF_LOG 0x01 231 #define PF_LOG_ALL 0x02 232 #define PF_LOG_SOCKET_LOOKUP 0x04 233 234 struct pf_addr { 235 union { 236 struct in_addr _v4addr; 237 struct in6_addr _v6addr; 238 u_int8_t _addr8[16]; 239 u_int16_t _addr16[8]; 240 u_int32_t _addr32[4]; 241 } pfa; /* 128-bit address */ 242 #define v4addr pfa._v4addr 243 #define v6addr pfa._v6addr 244 #define addr8 pfa._addr8 245 #define addr16 pfa._addr16 246 #define addr32 pfa._addr32 247 }; 248 249 #define PF_TABLE_NAME_SIZE 32 250 251 #define PFI_AFLAG_NETWORK 0x01 252 #define PFI_AFLAG_BROADCAST 0x02 253 #define PFI_AFLAG_PEER 0x04 254 #define PFI_AFLAG_MODEMASK 0x07 255 #define PFI_AFLAG_NOALIAS 0x08 256 257 #ifndef RTLABEL_LEN 258 #define RTLABEL_LEN 32 259 #endif 260 261 struct pf_addr_wrap { 262 union { 263 struct { 264 struct pf_addr addr; 265 struct pf_addr mask; 266 } a; 267 char ifname[IFNAMSIZ]; 268 char tblname[PF_TABLE_NAME_SIZE]; 269 char rtlabelname[RTLABEL_LEN]; 270 u_int32_t rtlabel; 271 } v; 272 union { 273 #ifdef KERNEL 274 struct pfi_dynaddr *dyn __attribute__((aligned(8))); 275 struct pfr_ktable *tbl __attribute__((aligned(8))); 276 #else /* !KERNEL */ 277 void *dyn __attribute__((aligned(8))); 278 void *tbl __attribute__((aligned(8))); 279 #endif /* !KERNEL */ 280 int dyncnt __attribute__((aligned(8))); 281 int tblcnt __attribute__((aligned(8))); 282 } p __attribute__((aligned(8))); 283 u_int8_t type; /* PF_ADDR_* */ 284 u_int8_t iflags; /* PFI_AFLAG_* */ 285 }; 286 287 struct pf_port_range { 288 u_int16_t port[2]; 289 u_int8_t op; 290 }; 291 292 union pf_rule_xport { 293 struct pf_port_range range; 294 u_int16_t call_id; 295 u_int32_t spi; 296 }; 297 298 #ifdef KERNEL 299 struct pfi_dynaddr { 300 TAILQ_ENTRY(pfi_dynaddr) entry; 301 struct pf_addr pfid_addr4; 302 struct pf_addr pfid_mask4; 303 struct pf_addr pfid_addr6; 304 struct pf_addr pfid_mask6; 305 struct pfr_ktable *pfid_kt; 306 struct pfi_kif *pfid_kif; 307 void *pfid_hook_cookie; 308 int pfid_net; /* mask or 128 */ 309 int pfid_acnt4; /* address count IPv4 */ 310 int pfid_acnt6; /* address count IPv6 */ 311 sa_family_t pfid_af; /* rule af */ 312 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 313 }; 314 315 /* 316 * Address manipulation macros 317 */ 318 319 #if INET 320 #if !INET6 321 #define PF_INET_ONLY 322 #endif /* ! INET6 */ 323 #endif /* INET */ 324 325 #if INET6 326 #if !INET 327 #define PF_INET6_ONLY 328 #endif /* ! INET */ 329 #endif /* INET6 */ 330 331 #if INET 332 #if INET6 333 #define PF_INET_INET6 334 #endif /* INET6 */ 335 #endif /* INET */ 336 337 #else /* !KERNEL */ 338 339 #define PF_INET_INET6 340 341 #endif /* !KERNEL */ 342 343 /* Both IPv4 and IPv6 */ 344 #ifdef PF_INET_INET6 345 346 #define PF_AEQ(a, b, c) \ 347 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 348 ((a)->addr32[3] == (b)->addr32[3] && \ 349 (a)->addr32[2] == (b)->addr32[2] && \ 350 (a)->addr32[1] == (b)->addr32[1] && \ 351 (a)->addr32[0] == (b)->addr32[0])) \ 352 353 #define PF_ANEQ(a, b, c) \ 354 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 355 ((a)->addr32[3] != (b)->addr32[3] || \ 356 (a)->addr32[2] != (b)->addr32[2] || \ 357 (a)->addr32[1] != (b)->addr32[1] || \ 358 (a)->addr32[0] != (b)->addr32[0])) \ 359 360 #define PF_ALEQ(a, b, c) \ 361 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \ 362 ((a)->addr32[3] <= (b)->addr32[3] && \ 363 (a)->addr32[2] <= (b)->addr32[2] && \ 364 (a)->addr32[1] <= (b)->addr32[1] && \ 365 (a)->addr32[0] <= (b)->addr32[0])) \ 366 367 #define PF_AZERO(a, c) \ 368 ((c == AF_INET && !(a)->addr32[0]) || \ 369 (!(a)->addr32[0] && !(a)->addr32[1] && \ 370 !(a)->addr32[2] && !(a)->addr32[3])) \ 371 372 #define PF_MATCHA(n, a, m, b, f) \ 373 pf_match_addr(n, a, m, b, f) 374 375 #define PF_ACPY(a, b, f) \ 376 pf_addrcpy(a, b, f) 377 378 #define PF_AINC(a, f) \ 379 pf_addr_inc(a, f) 380 381 #define PF_POOLMASK(a, b, c, d, f) \ 382 pf_poolmask(a, b, c, d, f) 383 384 #else 385 386 /* Just IPv6 */ 387 388 #ifdef PF_INET6_ONLY 389 390 #define PF_AEQ(a, b, c) \ 391 ((a)->addr32[3] == (b)->addr32[3] && \ 392 (a)->addr32[2] == (b)->addr32[2] && \ 393 (a)->addr32[1] == (b)->addr32[1] && \ 394 (a)->addr32[0] == (b)->addr32[0]) \ 395 396 #define PF_ANEQ(a, b, c) \ 397 ((a)->addr32[3] != (b)->addr32[3] || \ 398 (a)->addr32[2] != (b)->addr32[2] || \ 399 (a)->addr32[1] != (b)->addr32[1] || \ 400 (a)->addr32[0] != (b)->addr32[0]) \ 401 402 #define PF_ALEQ(a, b, c) \ 403 ((a)->addr32[3] <= (b)->addr32[3] && \ 404 (a)->addr32[2] <= (b)->addr32[2] && \ 405 (a)->addr32[1] <= (b)->addr32[1] && \ 406 (a)->addr32[0] <= (b)->addr32[0]) \ 407 408 #define PF_AZERO(a, c) \ 409 (!(a)->addr32[0] && \ 410 !(a)->addr32[1] && \ 411 !(a)->addr32[2] && \ 412 !(a)->addr32[3]) \ 413 414 #define PF_MATCHA(n, a, m, b, f) \ 415 pf_match_addr(n, a, m, b, f) 416 417 #define PF_ACPY(a, b, f) \ 418 pf_addrcpy(a, b, f) 419 420 #define PF_AINC(a, f) \ 421 pf_addr_inc(a, f) 422 423 #define PF_POOLMASK(a, b, c, d, f) \ 424 pf_poolmask(a, b, c, d, f) 425 426 #else 427 428 /* Just IPv4 */ 429 #ifdef PF_INET_ONLY 430 431 #define PF_AEQ(a, b, c) \ 432 ((a)->addr32[0] == (b)->addr32[0]) 433 434 #define PF_ANEQ(a, b, c) \ 435 ((a)->addr32[0] != (b)->addr32[0]) 436 437 #define PF_ALEQ(a, b, c) \ 438 ((a)->addr32[0] <= (b)->addr32[0]) 439 440 #define PF_AZERO(a, c) \ 441 (!(a)->addr32[0]) 442 443 #define PF_MATCHA(n, a, m, b, f) \ 444 pf_match_addr(n, a, m, b, f) 445 446 #define PF_ACPY(a, b, f) \ 447 (a)->v4.s_addr = (b)->v4.s_addr 448 449 #define PF_AINC(a, f) \ 450 do { \ 451 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 452 } while (0) 453 454 #define PF_POOLMASK(a, b, c, d, f) \ 455 do { \ 456 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 457 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ 458 } while (0) 459 460 #endif /* PF_INET_ONLY */ 461 #endif /* PF_INET6_ONLY */ 462 #endif /* PF_INET_INET6 */ 463 464 #ifdef KERNEL 465 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 466 ( \ 467 (((aw)->type == PF_ADDR_NOROUTE && \ 468 pf_routable((x), (af), NULL)) || \ 469 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 470 pf_routable((x), (af), (ifp))) || \ 471 ((aw)->type == PF_ADDR_RTLABEL && \ 472 !pf_rtlabel_match((x), (af), (aw))) || \ 473 ((aw)->type == PF_ADDR_TABLE && \ 474 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 475 ((aw)->type == PF_ADDR_DYNIFTL && \ 476 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 477 ((aw)->type == PF_ADDR_RANGE && \ 478 !pf_match_addr_range(&(aw)->v.a.addr, \ 479 &(aw)->v.a.mask, (x), (af))) || \ 480 ((aw)->type == PF_ADDR_ADDRMASK && \ 481 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 482 !PF_MATCHA(0, &(aw)->v.a.addr, \ 483 &(aw)->v.a.mask, (x), (af))))) != \ 484 (neg) \ 485 ) 486 #endif /* KERNEL */ 487 488 struct pf_rule_uid { 489 uid_t uid[2]; 490 u_int8_t op; 491 u_int8_t _pad[3]; 492 }; 493 494 struct pf_rule_gid { 495 uid_t gid[2]; 496 u_int8_t op; 497 u_int8_t _pad[3]; 498 }; 499 500 struct pf_rule_addr { 501 struct pf_addr_wrap addr; 502 union pf_rule_xport xport; 503 u_int8_t neg; 504 }; 505 506 struct pf_pooladdr { 507 struct pf_addr_wrap addr; 508 TAILQ_ENTRY(pf_pooladdr) entries; 509 #if !defined(__LP64__) 510 u_int32_t _pad[2]; 511 #endif /* !__LP64__ */ 512 char ifname[IFNAMSIZ]; 513 #ifdef KERNEL 514 struct pfi_kif *kif __attribute__((aligned(8))); 515 #else /* !KERNEL */ 516 void *kif __attribute__((aligned(8))); 517 #endif /* !KERNEL */ 518 }; 519 520 TAILQ_HEAD(pf_palist, pf_pooladdr); 521 522 struct pf_poolhashkey { 523 union { 524 u_int8_t key8[16]; 525 u_int16_t key16[8]; 526 u_int32_t key32[4]; 527 } pfk; /* 128-bit hash key */ 528 #define key8 pfk.key8 529 #define key16 pfk.key16 530 #define key32 pfk.key32 531 }; 532 533 struct pf_pool { 534 struct pf_palist list; 535 #if !defined(__LP64__) 536 u_int32_t _pad[2]; 537 #endif /* !__LP64__ */ 538 #ifdef KERNEL 539 struct pf_pooladdr *cur __attribute__((aligned(8))); 540 #else /* !KERNEL */ 541 void *cur __attribute__((aligned(8))); 542 #endif /* !KERNEL */ 543 struct pf_poolhashkey key __attribute__((aligned(8))); 544 struct pf_addr counter; 545 int tblidx; 546 u_int16_t proxy_port[2]; 547 u_int8_t port_op; 548 u_int8_t opts; 549 sa_family_t af; 550 }; 551 552 553 /* A packed Operating System description for fingerprinting */ 554 typedef u_int32_t pf_osfp_t; 555 #define PF_OSFP_ANY ((pf_osfp_t)0) 556 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 557 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 558 559 struct pf_osfp_entry { 560 SLIST_ENTRY(pf_osfp_entry) fp_entry; 561 #if !defined(__LP64__) 562 u_int32_t _pad; 563 #endif /* !__LP64__ */ 564 pf_osfp_t fp_os; 565 int fp_enflags; 566 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 567 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 568 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 569 #define PF_OSFP_LEN 32 570 char fp_class_nm[PF_OSFP_LEN]; 571 char fp_version_nm[PF_OSFP_LEN]; 572 char fp_subtype_nm[PF_OSFP_LEN]; 573 }; 574 #define PF_OSFP_ENTRY_EQ(a, b) \ 575 ((a)->fp_os == (b)->fp_os && \ 576 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 577 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 578 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 579 580 /* handle pf_osfp_t packing */ 581 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 582 #define _FP_UNUSED_BITS 1 583 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 584 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 585 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 586 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 587 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 588 ((1 << _FP_CLASS_BITS) - 1); \ 589 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 590 ((1 << _FP_VERSION_BITS) - 1);\ 591 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 592 } while (0) 593 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 594 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 595 + _FP_SUBTYPE_BITS); \ 596 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 597 _FP_SUBTYPE_BITS; \ 598 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 599 } while (0) 600 601 /* the fingerprint of an OSes TCP SYN packet */ 602 typedef u_int64_t pf_tcpopts_t; 603 struct pf_os_fingerprint { 604 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 605 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 606 u_int16_t fp_wsize; /* TCP window size */ 607 u_int16_t fp_psize; /* ip->ip_len */ 608 u_int16_t fp_mss; /* TCP MSS */ 609 u_int16_t fp_flags; 610 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 611 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 612 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 613 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 614 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 615 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 616 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 617 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 618 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 619 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 620 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 621 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 622 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 623 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 624 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 625 u_int8_t fp_optcnt; /* TCP option count */ 626 u_int8_t fp_wscale; /* TCP window scaling */ 627 u_int8_t fp_ttl; /* IPv4 TTL */ 628 #define PF_OSFP_MAXTTL_OFFSET 40 629 /* TCP options packing */ 630 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 631 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 632 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 633 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 634 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 635 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 636 #define PF_OSFP_MAX_OPTS \ 637 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 638 / PF_OSFP_TCPOPT_BITS 639 640 SLIST_ENTRY(pf_os_fingerprint) fp_next; 641 }; 642 643 struct pf_osfp_ioctl { 644 struct pf_osfp_entry fp_os; 645 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 646 u_int16_t fp_wsize; /* TCP window size */ 647 u_int16_t fp_psize; /* ip->ip_len */ 648 u_int16_t fp_mss; /* TCP MSS */ 649 u_int16_t fp_flags; 650 u_int8_t fp_optcnt; /* TCP option count */ 651 u_int8_t fp_wscale; /* TCP window scaling */ 652 u_int8_t fp_ttl; /* IPv4 TTL */ 653 654 int fp_getnum; /* DIOCOSFPGET number */ 655 }; 656 657 658 union pf_rule_ptr { 659 struct pf_rule *ptr __attribute__((aligned(8))); 660 u_int32_t nr __attribute__((aligned(8))); 661 } __attribute__((aligned(8))); 662 663 #define PF_ANCHOR_NAME_SIZE 64 664 665 struct pf_rule { 666 struct pf_rule_addr src; 667 struct pf_rule_addr dst; 668 #define PF_SKIP_IFP 0 669 #define PF_SKIP_DIR 1 670 #define PF_SKIP_AF 2 671 #define PF_SKIP_PROTO 3 672 #define PF_SKIP_SRC_ADDR 4 673 #define PF_SKIP_SRC_PORT 5 674 #define PF_SKIP_DST_ADDR 6 675 #define PF_SKIP_DST_PORT 7 676 #define PF_SKIP_COUNT 8 677 union pf_rule_ptr skip[PF_SKIP_COUNT]; 678 #define PF_RULE_LABEL_SIZE 64 679 char label[PF_RULE_LABEL_SIZE]; 680 #define PF_QNAME_SIZE 64 681 char ifname[IFNAMSIZ]; 682 char qname[PF_QNAME_SIZE]; 683 char pqname[PF_QNAME_SIZE]; 684 #define PF_TAG_NAME_SIZE 64 685 char tagname[PF_TAG_NAME_SIZE]; 686 char match_tagname[PF_TAG_NAME_SIZE]; 687 688 char overload_tblname[PF_TABLE_NAME_SIZE]; 689 690 TAILQ_ENTRY(pf_rule) entries; 691 #if !defined(__LP64__) 692 u_int32_t _pad[2]; 693 #endif /* !__LP64__ */ 694 struct pf_pool rpool; 695 696 u_int64_t evaluations; 697 u_int64_t packets[2]; 698 u_int64_t bytes[2]; 699 700 u_int64_t ticket; 701 #define PF_OWNER_NAME_SIZE 64 702 char owner[PF_OWNER_NAME_SIZE]; 703 u_int32_t priority; 704 705 #ifdef KERNEL 706 struct pfi_kif *kif __attribute__((aligned(8))); 707 #else /* !KERNEL */ 708 void *kif __attribute__((aligned(8))); 709 #endif /* !KERNEL */ 710 struct pf_anchor *anchor __attribute__((aligned(8))); 711 #ifdef KERNEL 712 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 713 #else /* !KERNEL */ 714 void *overload_tbl __attribute__((aligned(8))); 715 #endif /* !KERNEL */ 716 717 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 718 719 unsigned int rtableid; 720 u_int32_t timeout[PFTM_MAX]; 721 u_int32_t states; 722 u_int32_t max_states; 723 u_int32_t src_nodes; 724 u_int32_t max_src_nodes; 725 u_int32_t max_src_states; 726 u_int32_t max_src_conn; 727 struct { 728 u_int32_t limit; 729 u_int32_t seconds; 730 } max_src_conn_rate; 731 u_int32_t qid; 732 u_int32_t pqid; 733 u_int32_t rt_listid; 734 u_int32_t nr; 735 u_int32_t prob; 736 uid_t cuid; 737 pid_t cpid; 738 739 u_int16_t return_icmp; 740 u_int16_t return_icmp6; 741 u_int16_t max_mss; 742 u_int16_t tag; 743 u_int16_t match_tag; 744 745 struct pf_rule_uid uid; 746 struct pf_rule_gid gid; 747 748 u_int32_t rule_flag; 749 u_int8_t action; 750 u_int8_t direction; 751 u_int8_t log; 752 u_int8_t logif; 753 u_int8_t quick; 754 u_int8_t ifnot; 755 u_int8_t match_tag_not; 756 u_int8_t natpass; 757 758 #define PF_STATE_NORMAL 0x1 759 #define PF_STATE_MODULATE 0x2 760 #define PF_STATE_SYNPROXY 0x3 761 u_int8_t keep_state; 762 sa_family_t af; 763 u_int8_t proto; 764 u_int8_t type; 765 u_int8_t code; 766 u_int8_t flags; 767 u_int8_t flagset; 768 u_int8_t min_ttl; 769 u_int8_t allow_opts; 770 u_int8_t rt; 771 u_int8_t return_ttl; 772 773 /* service class categories */ 774 #define SCIDX_MASK 0x0f 775 #define SC_BE 0x10 776 #define SC_BK_SYS 0x11 777 #define SC_BK 0x12 778 #define SC_RD 0x13 779 #define SC_OAM 0x14 780 #define SC_AV 0x15 781 #define SC_RV 0x16 782 #define SC_VI 0x17 783 #define SC_SIG 0x17 784 #define SC_VO 0x18 785 #define SC_CTL 0x19 786 787 /* diffserve code points */ 788 #define DSCP_MASK 0xfc 789 #define DSCP_CUMASK 0x03 790 #define DSCP_EF 0xb8 791 #define DSCP_AF11 0x28 792 #define DSCP_AF12 0x30 793 #define DSCP_AF13 0x38 794 #define DSCP_AF21 0x48 795 #define DSCP_AF22 0x50 796 #define DSCP_AF23 0x58 797 #define DSCP_AF31 0x68 798 #define DSCP_AF32 0x70 799 #define DSCP_AF33 0x78 800 #define DSCP_AF41 0x88 801 #define DSCP_AF42 0x90 802 #define DSCP_AF43 0x98 803 #define AF_CLASSMASK 0xe0 804 #define AF_DROPPRECMASK 0x18 805 u_int8_t tos; 806 u_int8_t anchor_relative; 807 u_int8_t anchor_wildcard; 808 809 #define PF_FLUSH 0x01 810 #define PF_FLUSH_GLOBAL 0x02 811 u_int8_t flush; 812 813 u_int8_t proto_variant; 814 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 815 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 816 u_int32_t dnpipe; 817 u_int32_t dntype; 818 }; 819 820 /* pf device identifiers */ 821 #define PFDEV_PF 0 822 #define PFDEV_PFM 1 823 #define PFDEV_MAX 2 824 825 /* rule flags */ 826 #define PFRULE_DROP 0x0000 827 #define PFRULE_RETURNRST 0x0001 828 #define PFRULE_FRAGMENT 0x0002 829 #define PFRULE_RETURNICMP 0x0004 830 #define PFRULE_RETURN 0x0008 831 #define PFRULE_NOSYNC 0x0010 832 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 833 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 834 835 /* scrub flags */ 836 #define PFRULE_NODF 0x0100 837 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 838 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 839 #define PFRULE_RANDOMID 0x0800 840 #define PFRULE_REASSEMBLE_TCP 0x1000 841 842 /* rule flags for TOS/DSCP/service class differentiation */ 843 #define PFRULE_TOS 0x2000 844 #define PFRULE_DSCP 0x4000 845 #define PFRULE_SC 0x8000 846 847 /* rule flags again */ 848 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 849 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 850 851 #define PFSTATE_HIWAT 10000 /* default state table size */ 852 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 853 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 854 855 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 856 857 enum pf_extmap { 858 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 859 PF_EXTMAP_AD, /* Address-dependent mapping */ 860 PF_EXTMAP_EI /* Endpoint-independent mapping */ 861 }; 862 863 enum pf_extfilter { 864 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 865 PF_EXTFILTER_AD, /* Address-dependent filtering */ 866 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 867 }; 868 869 struct pf_threshold { 870 u_int32_t limit; 871 #define PF_THRESHOLD_MULT 1000 872 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 873 u_int32_t seconds; 874 u_int32_t count; 875 u_int32_t last; 876 }; 877 878 struct pf_src_node { 879 RB_ENTRY(pf_src_node) entry; 880 struct pf_addr addr; 881 struct pf_addr raddr; 882 union pf_rule_ptr rule; 883 #ifdef KERNEL 884 struct pfi_kif *kif; 885 #else /* !KERNEL */ 886 void *kif; 887 #endif /* !KERNEL */ 888 u_int64_t bytes[2]; 889 u_int64_t packets[2]; 890 u_int32_t states; 891 u_int32_t conn; 892 struct pf_threshold conn_rate; 893 u_int64_t creation; 894 u_int64_t expire; 895 sa_family_t af; 896 u_int8_t ruletype; 897 }; 898 899 #define PFSNODE_HIWAT 10000 /* default source node table size */ 900 901 #ifdef KERNEL 902 struct pf_state_scrub { 903 struct timeval pfss_last; /* time received last packet */ 904 u_int32_t pfss_tsecr; /* last echoed timestamp */ 905 u_int32_t pfss_tsval; /* largest timestamp */ 906 u_int32_t pfss_tsval0; /* original timestamp */ 907 u_int16_t pfss_flags; 908 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 909 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 910 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 911 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 912 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 913 u_int8_t pfss_ttl; /* stashed TTL */ 914 u_int8_t pad; 915 u_int32_t pfss_ts_mod; /* timestamp modulation */ 916 }; 917 #endif /* KERNEL */ 918 919 union pf_state_xport { 920 u_int16_t port; 921 u_int16_t call_id; 922 u_int32_t spi; 923 }; 924 925 struct pf_state_host { 926 struct pf_addr addr; 927 union pf_state_xport xport; 928 }; 929 930 #ifdef KERNEL 931 struct pf_state_peer { 932 u_int32_t seqlo; /* Max sequence number sent */ 933 u_int32_t seqhi; /* Max the other end ACKd + win */ 934 u_int32_t seqdiff; /* Sequence number modulator */ 935 u_int16_t max_win; /* largest window (pre scaling) */ 936 u_int8_t state; /* active state level */ 937 u_int8_t wscale; /* window scaling factor */ 938 u_int16_t mss; /* Maximum segment size option */ 939 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 940 struct pf_state_scrub *scrub; /* state is scrubbed */ 941 u_int8_t pad[3]; 942 }; 943 944 TAILQ_HEAD(pf_state_queue, pf_state); 945 946 struct pf_state; 947 struct pf_pdesc; 948 struct pf_app_state; 949 950 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 951 struct pfi_kif *); 952 953 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 954 955 struct pf_pptp_state { 956 struct pf_state *grev1_state; 957 }; 958 959 struct pf_grev1_state { 960 struct pf_state *pptp_state; 961 }; 962 963 struct pf_ike_state { 964 u_int64_t cookie; 965 }; 966 967 struct pf_app_state { 968 pf_app_handler handler; 969 pf_app_compare compare_lan_ext; 970 pf_app_compare compare_ext_gwy; 971 union { 972 struct pf_pptp_state pptp; 973 struct pf_grev1_state grev1; 974 struct pf_ike_state ike; 975 } u; 976 }; 977 978 /* keep synced with struct pf_state, used in RB_FIND */ 979 struct pf_state_key_cmp { 980 struct pf_state_host lan; 981 struct pf_state_host gwy; 982 struct pf_state_host ext_lan; 983 struct pf_state_host ext_gwy; 984 sa_family_t af_lan; 985 sa_family_t af_gwy; 986 u_int8_t proto; 987 u_int8_t direction; 988 u_int8_t proto_variant; 989 struct pf_app_state *app_state; 990 }; 991 992 TAILQ_HEAD(pf_statelist, pf_state); 993 994 struct pf_state_key { 995 struct pf_state_host lan; 996 struct pf_state_host gwy; 997 struct pf_state_host ext_lan; 998 struct pf_state_host ext_gwy; 999 sa_family_t af_lan; 1000 sa_family_t af_gwy; 1001 u_int8_t proto; 1002 u_int8_t direction; 1003 u_int8_t proto_variant; 1004 struct pf_app_state *app_state; 1005 u_int32_t flowsrc; 1006 u_int32_t flowhash; 1007 1008 RB_ENTRY(pf_state_key) entry_lan_ext; 1009 RB_ENTRY(pf_state_key) entry_ext_gwy; 1010 struct pf_statelist states; 1011 u_int32_t refcnt; 1012 }; 1013 1014 1015 /* keep synced with struct pf_state, used in RB_FIND */ 1016 struct pf_state_cmp { 1017 u_int64_t id; 1018 u_int32_t creatorid; 1019 u_int32_t pad; 1020 }; 1021 1022 /* flowhash key (12-bytes multiple for performance) */ 1023 struct pf_flowhash_key { 1024 struct pf_state_host ap1; /* address+port blob 1 */ 1025 struct pf_state_host ap2; /* address+port blob 2 */ 1026 u_int32_t af; 1027 u_int32_t proto; 1028 }; 1029 #endif /* KERNEL */ 1030 1031 struct hook_desc; 1032 TAILQ_HEAD(hook_desc_head, hook_desc); 1033 1034 #ifdef KERNEL 1035 struct pf_state { 1036 u_int64_t id; 1037 u_int32_t creatorid; 1038 u_int32_t pad; 1039 1040 TAILQ_ENTRY(pf_state) entry_list; 1041 TAILQ_ENTRY(pf_state) next; 1042 RB_ENTRY(pf_state) entry_id; 1043 struct pf_state_peer src; 1044 struct pf_state_peer dst; 1045 union pf_rule_ptr rule; 1046 union pf_rule_ptr anchor; 1047 union pf_rule_ptr nat_rule; 1048 struct pf_addr rt_addr; 1049 struct hook_desc_head unlink_hooks; 1050 struct pf_state_key *state_key; 1051 struct pfi_kif *kif; 1052 struct pfi_kif *rt_kif; 1053 struct pf_src_node *src_node; 1054 struct pf_src_node *nat_src_node; 1055 u_int64_t packets[2]; 1056 u_int64_t bytes[2]; 1057 u_int64_t creation; 1058 u_int64_t expire; 1059 u_int64_t pfsync_time; 1060 u_int16_t tag; 1061 u_int8_t log; 1062 u_int8_t allow_opts; 1063 u_int8_t timeout; 1064 u_int8_t sync_flags; 1065 }; 1066 #endif /* KERNEL */ 1067 1068 #define PFSTATE_NOSYNC 0x01 1069 #define PFSTATE_FROMSYNC 0x02 1070 #define PFSTATE_STALE 0x04 1071 1072 #define __packed __attribute__((__packed__)) 1073 1074 /* 1075 * Unified state structures for pulling states out of the kernel 1076 * used by pfsync(4) and the pf(4) ioctl. 1077 */ 1078 struct pfsync_state_scrub { 1079 u_int16_t pfss_flags; 1080 u_int8_t pfss_ttl; /* stashed TTL */ 1081 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1082 u_int8_t scrub_flag; 1083 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1084 } __packed; 1085 1086 struct pfsync_state_host { 1087 struct pf_addr addr; 1088 union pf_state_xport xport; 1089 u_int16_t pad[2]; 1090 } __packed; 1091 1092 struct pfsync_state_peer { 1093 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1094 u_int32_t seqlo; /* Max sequence number sent */ 1095 u_int32_t seqhi; /* Max the other end ACKd + win */ 1096 u_int32_t seqdiff; /* Sequence number modulator */ 1097 u_int16_t max_win; /* largest window (pre scaling) */ 1098 u_int16_t mss; /* Maximum segment size option */ 1099 u_int8_t state; /* active state level */ 1100 u_int8_t wscale; /* window scaling factor */ 1101 u_int8_t pad[6]; 1102 } __packed; 1103 1104 struct pfsync_state { 1105 u_int32_t id[2]; 1106 char ifname[IFNAMSIZ]; 1107 struct pfsync_state_host lan; 1108 struct pfsync_state_host gwy; 1109 struct pfsync_state_host ext_lan; 1110 struct pfsync_state_host ext_gwy; 1111 struct pfsync_state_peer src; 1112 struct pfsync_state_peer dst; 1113 struct pf_addr rt_addr; 1114 struct hook_desc_head unlink_hooks; 1115 #if !defined(__LP64__) 1116 u_int32_t _pad[2]; 1117 #endif /* !__LP64__ */ 1118 u_int32_t rule; 1119 u_int32_t anchor; 1120 u_int32_t nat_rule; 1121 u_int64_t creation; 1122 u_int64_t expire; 1123 u_int32_t packets[2][2]; 1124 u_int32_t bytes[2][2]; 1125 u_int32_t creatorid; 1126 u_int16_t tag; 1127 sa_family_t af_lan; 1128 sa_family_t af_gwy; 1129 u_int8_t proto; 1130 u_int8_t direction; 1131 u_int8_t log; 1132 u_int8_t allow_opts; 1133 u_int8_t timeout; 1134 u_int8_t sync_flags; 1135 u_int8_t updates; 1136 u_int8_t proto_variant; 1137 u_int8_t __pad; 1138 u_int32_t flowhash; 1139 } __packed; 1140 1141 #define PFSYNC_FLAG_COMPRESS 0x01 1142 #define PFSYNC_FLAG_STALE 0x02 1143 #define PFSYNC_FLAG_SRCNODE 0x04 1144 #define PFSYNC_FLAG_NATSRCNODE 0x08 1145 1146 #ifdef KERNEL 1147 /* for copies to/from userland via pf_ioctl() */ 1148 #define pf_state_peer_to_pfsync(s, d) do { \ 1149 (d)->seqlo = (s)->seqlo; \ 1150 (d)->seqhi = (s)->seqhi; \ 1151 (d)->seqdiff = (s)->seqdiff; \ 1152 (d)->max_win = (s)->max_win; \ 1153 (d)->mss = (s)->mss; \ 1154 (d)->state = (s)->state; \ 1155 (d)->wscale = (s)->wscale; \ 1156 if ((s)->scrub) { \ 1157 (d)->scrub.pfss_flags = \ 1158 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1159 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1160 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1161 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1162 } \ 1163 } while (0) 1164 1165 #define pf_state_peer_from_pfsync(s, d) do { \ 1166 (d)->seqlo = (s)->seqlo; \ 1167 (d)->seqhi = (s)->seqhi; \ 1168 (d)->seqdiff = (s)->seqdiff; \ 1169 (d)->max_win = (s)->max_win; \ 1170 (d)->mss = ntohs((s)->mss); \ 1171 (d)->state = (s)->state; \ 1172 (d)->wscale = (s)->wscale; \ 1173 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1174 (d)->scrub != NULL) { \ 1175 (d)->scrub->pfss_flags = \ 1176 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1177 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1178 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1179 } \ 1180 } while (0) 1181 #endif /* KERNEL */ 1182 1183 #define pf_state_counter_to_pfsync(s, d) do { \ 1184 d[0] = (s>>32)&0xffffffff; \ 1185 d[1] = s&0xffffffff; \ 1186 } while (0) 1187 1188 #define pf_state_counter_from_pfsync(s) \ 1189 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1190 1191 1192 1193 TAILQ_HEAD(pf_rulequeue, pf_rule); 1194 1195 struct pf_anchor; 1196 1197 struct pf_ruleset { 1198 struct { 1199 struct pf_rulequeue queues[2]; 1200 struct { 1201 struct pf_rulequeue *ptr; 1202 struct pf_rule **ptr_array; 1203 u_int32_t rcount; 1204 u_int32_t ticket; 1205 int open; 1206 } active, inactive; 1207 } rules[PF_RULESET_MAX]; 1208 struct pf_anchor *anchor; 1209 u_int32_t tticket; 1210 int tables; 1211 int topen; 1212 }; 1213 1214 RB_HEAD(pf_anchor_global, pf_anchor); 1215 RB_HEAD(pf_anchor_node, pf_anchor); 1216 struct pf_anchor { 1217 RB_ENTRY(pf_anchor) entry_global; 1218 RB_ENTRY(pf_anchor) entry_node; 1219 struct pf_anchor *parent; 1220 struct pf_anchor_node children; 1221 char name[PF_ANCHOR_NAME_SIZE]; 1222 char path[MAXPATHLEN]; 1223 struct pf_ruleset ruleset; 1224 int refcnt; /* anchor rules */ 1225 int match; 1226 char owner[PF_OWNER_NAME_SIZE]; 1227 }; 1228 #ifdef KERNEL 1229 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1230 pf_anchor_compare); 1231 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1232 pf_anchor_compare); 1233 #else /* !KERNEL */ 1234 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1235 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1236 #endif /* !KERNEL */ 1237 1238 #define PF_RESERVED_ANCHOR "_pf" 1239 1240 #define PFR_TFLAG_PERSIST 0x00000001 1241 #define PFR_TFLAG_CONST 0x00000002 1242 #define PFR_TFLAG_ACTIVE 0x00000004 1243 #define PFR_TFLAG_INACTIVE 0x00000008 1244 #define PFR_TFLAG_REFERENCED 0x00000010 1245 #define PFR_TFLAG_REFDANCHOR 0x00000020 1246 #define PFR_TFLAG_USRMASK 0x00000003 1247 #define PFR_TFLAG_SETMASK 0x0000003C 1248 #define PFR_TFLAG_ALLMASK 0x0000003F 1249 1250 struct pfr_table { 1251 char pfrt_anchor[MAXPATHLEN]; 1252 char pfrt_name[PF_TABLE_NAME_SIZE]; 1253 u_int32_t pfrt_flags; 1254 u_int8_t pfrt_fback; 1255 }; 1256 1257 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1258 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1259 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1260 1261 struct pfr_addr { 1262 union { 1263 struct in_addr _pfra_ip4addr; 1264 struct in6_addr _pfra_ip6addr; 1265 } pfra_u; 1266 u_int8_t pfra_af; 1267 u_int8_t pfra_net; 1268 u_int8_t pfra_not; 1269 u_int8_t pfra_fback; 1270 }; 1271 #define pfra_ip4addr pfra_u._pfra_ip4addr 1272 #define pfra_ip6addr pfra_u._pfra_ip6addr 1273 1274 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1275 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1276 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1277 1278 struct pfr_astats { 1279 struct pfr_addr pfras_a; 1280 #if !defined(__LP64__) 1281 u_int32_t _pad; 1282 #endif /* !__LP64__ */ 1283 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1284 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1285 u_int64_t pfras_tzero; 1286 }; 1287 1288 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1289 1290 struct pfr_tstats { 1291 struct pfr_table pfrts_t; 1292 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1293 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1294 u_int64_t pfrts_match; 1295 u_int64_t pfrts_nomatch; 1296 u_int64_t pfrts_tzero; 1297 int pfrts_cnt; 1298 int pfrts_refcnt[PFR_REFCNT_MAX]; 1299 #if !defined(__LP64__) 1300 u_int32_t _pad; 1301 #endif /* !__LP64__ */ 1302 }; 1303 #define pfrts_name pfrts_t.pfrt_name 1304 #define pfrts_flags pfrts_t.pfrt_flags 1305 1306 #ifdef KERNEL 1307 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1308 struct pfr_kentry { 1309 struct radix_node pfrke_node[2]; 1310 union sockaddr_union pfrke_sa; 1311 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1312 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1313 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1314 u_int64_t pfrke_tzero; 1315 u_int8_t pfrke_af; 1316 u_int8_t pfrke_net; 1317 u_int8_t pfrke_not; 1318 u_int8_t pfrke_mark; 1319 u_int8_t pfrke_intrpool; 1320 }; 1321 1322 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1323 RB_HEAD(pfr_ktablehead, pfr_ktable); 1324 struct pfr_ktable { 1325 struct pfr_tstats pfrkt_ts; 1326 RB_ENTRY(pfr_ktable) pfrkt_tree; 1327 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1328 struct radix_node_head *pfrkt_ip4; 1329 struct radix_node_head *pfrkt_ip6; 1330 struct pfr_ktable *pfrkt_shadow; 1331 struct pfr_ktable *pfrkt_root; 1332 struct pf_ruleset *pfrkt_rs; 1333 u_int64_t pfrkt_larg; 1334 u_int32_t pfrkt_nflags; 1335 }; 1336 #define pfrkt_t pfrkt_ts.pfrts_t 1337 #define pfrkt_name pfrkt_t.pfrt_name 1338 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1339 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1340 #define pfrkt_flags pfrkt_t.pfrt_flags 1341 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1342 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1343 #define pfrkt_packets pfrkt_ts.pfrts_packets 1344 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1345 #define pfrkt_match pfrkt_ts.pfrts_match 1346 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1347 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1348 1349 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1350 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1351 entry_lan_ext, pf_state_compare_lan_ext); 1352 1353 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1354 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1355 entry_ext_gwy, pf_state_compare_ext_gwy); 1356 1357 RB_HEAD(pfi_ifhead, pfi_kif); 1358 1359 /* state tables */ 1360 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1361 extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 1362 1363 /* keep synced with pfi_kif, used in RB_FIND */ 1364 struct pfi_kif_cmp { 1365 char pfik_name[IFNAMSIZ]; 1366 }; 1367 1368 struct pfi_kif { 1369 char pfik_name[IFNAMSIZ]; 1370 RB_ENTRY(pfi_kif) pfik_tree; 1371 u_int64_t pfik_packets[2][2][2]; 1372 u_int64_t pfik_bytes[2][2][2]; 1373 u_int64_t pfik_tzero; 1374 int pfik_flags; 1375 void *pfik_ah_cookie; 1376 struct ifnet *pfik_ifp; 1377 int pfik_states; 1378 int pfik_rules; 1379 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1380 }; 1381 1382 enum pfi_kif_refs { 1383 PFI_KIF_REF_NONE, 1384 PFI_KIF_REF_STATE, 1385 PFI_KIF_REF_RULE 1386 }; 1387 1388 struct pfi_uif { 1389 #else /* !KERNEL */ 1390 struct pfi_kif { 1391 #endif /* !KERNEL */ 1392 char pfik_name[IFNAMSIZ]; 1393 u_int64_t pfik_packets[2][2][2]; 1394 u_int64_t pfik_bytes[2][2][2]; 1395 u_int64_t pfik_tzero; 1396 int pfik_flags; 1397 int pfik_states; 1398 int pfik_rules; 1399 #if !defined(__LP64__) 1400 u_int32_t _pad; 1401 #endif /* !__LP64__ */ 1402 }; 1403 1404 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1405 1406 #ifdef KERNEL 1407 struct pf_pdesc { 1408 struct { 1409 int done; 1410 uid_t uid; 1411 gid_t gid; 1412 pid_t pid; 1413 } lookup; 1414 u_int64_t tot_len; /* Make Mickey money */ 1415 union { 1416 struct tcphdr *tcp; 1417 struct udphdr *udp; 1418 struct icmp *icmp; 1419 #if INET6 1420 struct icmp6_hdr *icmp6; 1421 #endif /* INET6 */ 1422 struct pf_grev1_hdr *grev1; 1423 struct pf_esp_hdr *esp; 1424 void *any; 1425 } hdr; 1426 1427 /* XXX TODO: Change baddr and naddr to *saddr */ 1428 struct pf_addr baddr; /* src address before translation */ 1429 struct pf_addr bdaddr; /* dst address before translation */ 1430 struct pf_addr naddr; /* src address after translation */ 1431 struct pf_addr ndaddr; /* dst address after translation */ 1432 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1433 struct pf_addr *src; 1434 struct pf_addr *dst; 1435 struct ether_header 1436 *eh; 1437 pbuf_t *mp; 1438 int lmw; /* lazy writable offset */ 1439 struct pf_mtag *pf_mtag; 1440 u_int16_t *ip_sum; 1441 u_int32_t off; /* protocol header offset */ 1442 u_int32_t hdrlen; /* protocol header length */ 1443 u_int32_t p_len; /* total length of payload */ 1444 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1445 /* state code. Easier than tags */ 1446 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1447 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1448 #define PFDESC_IP_FRAG 0x0004 /* This is a fragment */ 1449 sa_family_t af; 1450 sa_family_t naf; /* address family after translation */ 1451 u_int8_t proto; 1452 u_int8_t tos; 1453 u_int8_t ttl; 1454 u_int8_t proto_variant; 1455 mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ 1456 u_int32_t pktflags; /* mbuf packet flags (PKTF) */ 1457 u_int32_t flowsrc; /* flow source (FLOWSRC) */ 1458 u_int32_t flowhash; /* flow hash to identify the sender */ 1459 }; 1460 #endif /* KERNEL */ 1461 1462 /* flags for RDR options */ 1463 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1464 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1465 1466 /* Reasons code for passing/dropping a packet */ 1467 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1468 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1469 #define PFRES_FRAG 2 /* Dropping following fragment */ 1470 #define PFRES_SHORT 3 /* Dropping short packet */ 1471 #define PFRES_NORM 4 /* Dropping by normalizer */ 1472 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1473 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1474 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1475 #define PFRES_IPOPTIONS 8 /* IP option */ 1476 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1477 #define PFRES_BADSTATE 10 /* State mismatch */ 1478 #define PFRES_STATEINS 11 /* State insertion failure */ 1479 #define PFRES_MAXSTATES 12 /* State limit */ 1480 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1481 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1482 #define PFRES_DUMMYNET 15 /* Dummynet */ 1483 #define PFRES_MAX 16 /* total+1 */ 1484 1485 #define PFRES_NAMES { \ 1486 "match", \ 1487 "bad-offset", \ 1488 "fragment", \ 1489 "short", \ 1490 "normalize", \ 1491 "memory", \ 1492 "bad-timestamp", \ 1493 "congestion", \ 1494 "ip-option", \ 1495 "proto-cksum", \ 1496 "state-mismatch", \ 1497 "state-insert", \ 1498 "state-limit", \ 1499 "src-limit", \ 1500 "synproxy", \ 1501 "dummynet", \ 1502 NULL \ 1503 } 1504 1505 /* Counters for other things we want to keep track of */ 1506 #define LCNT_STATES 0 /* states */ 1507 #define LCNT_SRCSTATES 1 /* max-src-states */ 1508 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1509 #define LCNT_SRCCONN 3 /* max-src-conn */ 1510 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1511 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1512 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1513 #define LCNT_MAX 7 /* total+1 */ 1514 1515 #define LCNT_NAMES { \ 1516 "max states per rule", \ 1517 "max-src-states", \ 1518 "max-src-nodes", \ 1519 "max-src-conn", \ 1520 "max-src-conn-rate", \ 1521 "overload table insertion", \ 1522 "overload flush states", \ 1523 NULL \ 1524 } 1525 1526 /* UDP state enumeration */ 1527 #define PFUDPS_NO_TRAFFIC 0 1528 #define PFUDPS_SINGLE 1 1529 #define PFUDPS_MULTIPLE 2 1530 1531 #define PFUDPS_NSTATES 3 /* number of state levels */ 1532 1533 #define PFUDPS_NAMES { \ 1534 "NO_TRAFFIC", \ 1535 "SINGLE", \ 1536 "MULTIPLE", \ 1537 NULL \ 1538 } 1539 1540 /* GREv1 protocol state enumeration */ 1541 #define PFGRE1S_NO_TRAFFIC 0 1542 #define PFGRE1S_INITIATING 1 1543 #define PFGRE1S_ESTABLISHED 2 1544 1545 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1546 1547 #define PFGRE1S_NAMES { \ 1548 "NO_TRAFFIC", \ 1549 "INITIATING", \ 1550 "ESTABLISHED", \ 1551 NULL \ 1552 } 1553 1554 #define PFESPS_NO_TRAFFIC 0 1555 #define PFESPS_INITIATING 1 1556 #define PFESPS_ESTABLISHED 2 1557 1558 #define PFESPS_NSTATES 3 /* number of state levels */ 1559 1560 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1561 1562 /* Other protocol state enumeration */ 1563 #define PFOTHERS_NO_TRAFFIC 0 1564 #define PFOTHERS_SINGLE 1 1565 #define PFOTHERS_MULTIPLE 2 1566 1567 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1568 1569 #define PFOTHERS_NAMES { \ 1570 "NO_TRAFFIC", \ 1571 "SINGLE", \ 1572 "MULTIPLE", \ 1573 NULL \ 1574 } 1575 1576 #define FCNT_STATE_SEARCH 0 1577 #define FCNT_STATE_INSERT 1 1578 #define FCNT_STATE_REMOVALS 2 1579 #define FCNT_MAX 3 1580 1581 #define SCNT_SRC_NODE_SEARCH 0 1582 #define SCNT_SRC_NODE_INSERT 1 1583 #define SCNT_SRC_NODE_REMOVALS 2 1584 #define SCNT_MAX 3 1585 1586 #ifdef KERNEL 1587 #define ACTION_SET(a, x) \ 1588 do { \ 1589 if ((a) != NULL) \ 1590 *(a) = (x); \ 1591 } while (0) 1592 1593 #define REASON_SET(a, x) \ 1594 do { \ 1595 if ((a) != NULL) \ 1596 *(a) = (x); \ 1597 if (x < PFRES_MAX) \ 1598 pf_status.counters[x]++; \ 1599 } while (0) 1600 #endif /* KERNEL */ 1601 1602 struct pf_status { 1603 u_int64_t counters[PFRES_MAX]; 1604 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1605 u_int64_t fcounters[FCNT_MAX]; 1606 u_int64_t scounters[SCNT_MAX]; 1607 u_int64_t pcounters[2][2][3]; 1608 u_int64_t bcounters[2][2]; 1609 u_int64_t stateid; 1610 u_int32_t running; 1611 u_int32_t states; 1612 u_int32_t src_nodes; 1613 u_int64_t since __attribute__((aligned(8))); 1614 u_int32_t debug; 1615 u_int32_t hostid; 1616 char ifname[IFNAMSIZ]; 1617 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1618 }; 1619 1620 struct cbq_opts { 1621 u_int32_t minburst; 1622 u_int32_t maxburst; 1623 u_int32_t pktsize; 1624 u_int32_t maxpktsize; 1625 u_int32_t ns_per_byte; 1626 u_int32_t maxidle; 1627 int32_t minidle; 1628 u_int32_t offtime; 1629 u_int32_t flags; 1630 }; 1631 1632 struct priq_opts { 1633 u_int32_t flags; 1634 }; 1635 1636 struct qfq_opts { 1637 u_int32_t flags; 1638 u_int32_t lmax; 1639 }; 1640 1641 struct hfsc_opts { 1642 /* real-time service curve */ 1643 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1644 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1645 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1646 u_int32_t rtsc_fl; /* service curve flags */ 1647 #if !defined(__LP64__) 1648 u_int32_t _pad; 1649 #endif /* !__LP64__ */ 1650 /* link-sharing service curve */ 1651 u_int64_t lssc_m1; 1652 u_int64_t lssc_d; 1653 u_int64_t lssc_m2; 1654 u_int32_t lssc_fl; 1655 #if !defined(__LP64__) 1656 u_int32_t __pad; 1657 #endif /* !__LP64__ */ 1658 /* upper-limit service curve */ 1659 u_int64_t ulsc_m1; 1660 u_int64_t ulsc_d; 1661 u_int64_t ulsc_m2; 1662 u_int32_t ulsc_fl; 1663 u_int32_t flags; /* scheduler flags */ 1664 }; 1665 1666 struct fairq_opts { 1667 u_int32_t nbuckets; /* hash buckets */ 1668 u_int32_t flags; 1669 u_int64_t hogs_m1; /* hog detection bandwidth */ 1670 1671 /* link-sharing service curve */ 1672 u_int64_t lssc_m1; 1673 u_int64_t lssc_d; 1674 u_int64_t lssc_m2; 1675 }; 1676 1677 /* bandwidth types */ 1678 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1679 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1680 1681 /* ALTQ rule flags */ 1682 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1683 1684 /* queue rule flags */ 1685 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1686 1687 struct pf_altq { 1688 char ifname[IFNAMSIZ]; 1689 1690 /* discipline-specific state */ 1691 void *altq_disc __attribute__((aligned(8))); 1692 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1693 #if !defined(__LP64__) 1694 u_int32_t _pad[2]; 1695 #endif /* !__LP64__ */ 1696 1697 u_int32_t aflags; /* ALTQ rule flags */ 1698 u_int32_t bwtype; /* bandwidth type */ 1699 1700 /* scheduler spec */ 1701 u_int32_t scheduler; /* scheduler type */ 1702 u_int32_t tbrsize; /* tokenbucket regulator size */ 1703 u_int64_t ifbandwidth; /* interface bandwidth */ 1704 1705 /* queue spec */ 1706 char qname[PF_QNAME_SIZE]; /* queue name */ 1707 char parent[PF_QNAME_SIZE]; /* parent name */ 1708 u_int32_t parent_qid; /* parent queue id */ 1709 u_int32_t qrflags; /* queue rule flags */ 1710 union { 1711 u_int32_t priority; /* priority */ 1712 u_int32_t weight; /* weight */ 1713 }; 1714 u_int32_t qlimit; /* queue size limit */ 1715 u_int32_t flags; /* misc flags */ 1716 #if !defined(__LP64__) 1717 u_int32_t __pad; 1718 #endif /* !__LP64__ */ 1719 u_int64_t bandwidth; /* queue bandwidth */ 1720 union { 1721 struct cbq_opts cbq_opts; 1722 struct priq_opts priq_opts; 1723 struct hfsc_opts hfsc_opts; 1724 struct fairq_opts fairq_opts; 1725 struct qfq_opts qfq_opts; 1726 } pq_u; 1727 1728 u_int32_t qid; /* return value */ 1729 }; 1730 1731 struct pf_tagname { 1732 TAILQ_ENTRY(pf_tagname) entries; 1733 char name[PF_TAG_NAME_SIZE]; 1734 u_int16_t tag; 1735 int ref; 1736 }; 1737 1738 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1739 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1740 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1741 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1742 1743 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1744 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1745 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1746 1747 /* 1748 * ioctl parameter structures 1749 */ 1750 1751 struct pfioc_pooladdr { 1752 u_int32_t action; 1753 u_int32_t ticket; 1754 u_int32_t nr; 1755 u_int32_t r_num; 1756 u_int8_t r_action; 1757 u_int8_t r_last; 1758 u_int8_t af; 1759 char anchor[MAXPATHLEN]; 1760 struct pf_pooladdr addr; 1761 }; 1762 1763 struct pfioc_rule { 1764 u_int32_t action; 1765 u_int32_t ticket; 1766 u_int32_t pool_ticket; 1767 u_int32_t nr; 1768 char anchor[MAXPATHLEN]; 1769 char anchor_call[MAXPATHLEN]; 1770 struct pf_rule rule; 1771 }; 1772 1773 struct pfioc_natlook { 1774 struct pf_addr saddr; 1775 struct pf_addr daddr; 1776 struct pf_addr rsaddr; 1777 struct pf_addr rdaddr; 1778 union pf_state_xport sxport; 1779 union pf_state_xport dxport; 1780 union pf_state_xport rsxport; 1781 union pf_state_xport rdxport; 1782 sa_family_t af; 1783 u_int8_t proto; 1784 u_int8_t proto_variant; 1785 u_int8_t direction; 1786 }; 1787 1788 struct pfioc_state { 1789 struct pfsync_state state; 1790 }; 1791 1792 struct pfioc_src_node_kill { 1793 /* XXX returns the number of src nodes killed in psnk_af */ 1794 sa_family_t psnk_af; 1795 struct pf_rule_addr psnk_src; 1796 struct pf_rule_addr psnk_dst; 1797 }; 1798 1799 struct pfioc_state_addr_kill { 1800 struct pf_addr_wrap addr; 1801 u_int8_t reserved_[3]; 1802 u_int8_t neg; 1803 union pf_rule_xport xport; 1804 }; 1805 1806 struct pfioc_state_kill { 1807 /* XXX returns the number of states killed in psk_af */ 1808 sa_family_t psk_af; 1809 u_int8_t psk_proto; 1810 u_int8_t psk_proto_variant; 1811 u_int8_t _pad; 1812 struct pfioc_state_addr_kill psk_src; 1813 struct pfioc_state_addr_kill psk_dst; 1814 char psk_ifname[IFNAMSIZ]; 1815 char psk_ownername[PF_OWNER_NAME_SIZE]; 1816 }; 1817 1818 struct pfioc_states { 1819 int ps_len; 1820 union { 1821 caddr_t psu_buf; 1822 struct pfsync_state *psu_states; 1823 } ps_u __attribute__((aligned(8))); 1824 #define ps_buf ps_u.psu_buf 1825 #define ps_states ps_u.psu_states 1826 }; 1827 1828 #ifdef KERNEL 1829 struct pfioc_states_32 { 1830 int ps_len; 1831 union { 1832 user32_addr_t psu_buf; 1833 user32_addr_t psu_states; 1834 } ps_u __attribute__((aligned(8))); 1835 }; 1836 1837 struct pfioc_states_64 { 1838 int ps_len; 1839 union { 1840 user64_addr_t psu_buf; 1841 user64_addr_t psu_states; 1842 } ps_u __attribute__((aligned(8))); 1843 }; 1844 #endif /* KERNEL */ 1845 1846 #define PFTOK_PROCNAME_LEN 64 1847 #pragma pack(1) 1848 struct pfioc_token { 1849 u_int64_t token_value; 1850 u_int64_t timestamp; 1851 pid_t pid; 1852 char proc_name[PFTOK_PROCNAME_LEN]; 1853 }; 1854 #pragma pack() 1855 1856 struct pfioc_kernel_token { 1857 SLIST_ENTRY(pfioc_kernel_token) next; 1858 struct pfioc_token token; 1859 }; 1860 1861 struct pfioc_remove_token { 1862 u_int64_t token_value; 1863 u_int64_t refcount; 1864 }; 1865 1866 struct pfioc_tokens { 1867 int size; 1868 union { 1869 caddr_t pgtu_buf; 1870 struct pfioc_token *pgtu_tokens; 1871 } pgt_u __attribute__((aligned(8))); 1872 #define pgt_buf pgt_u.pgtu_buf 1873 #define pgt_tokens pgt_u.pgtu_tokens 1874 }; 1875 1876 #ifdef KERNEL 1877 struct pfioc_tokens_32 { 1878 int size; 1879 union { 1880 user32_addr_t pgtu_buf; 1881 user32_addr_t pgtu_tokens; 1882 } pgt_u __attribute__((aligned(8))); 1883 }; 1884 1885 struct pfioc_tokens_64 { 1886 int size; 1887 union { 1888 user64_addr_t pgtu_buf; 1889 user64_addr_t pgtu_tokens; 1890 } pgt_u __attribute__((aligned(8))); 1891 }; 1892 #endif /* KERNEL */ 1893 1894 1895 struct pfioc_src_nodes { 1896 int psn_len; 1897 union { 1898 caddr_t psu_buf; 1899 struct pf_src_node *psu_src_nodes; 1900 } psn_u __attribute__((aligned(8))); 1901 #define psn_buf psn_u.psu_buf 1902 #define psn_src_nodes psn_u.psu_src_nodes 1903 }; 1904 1905 #ifdef KERNEL 1906 struct pfioc_src_nodes_32 { 1907 int psn_len; 1908 union { 1909 user32_addr_t psu_buf; 1910 user32_addr_t psu_src_nodes; 1911 } psn_u __attribute__((aligned(8))); 1912 }; 1913 1914 struct pfioc_src_nodes_64 { 1915 int psn_len; 1916 union { 1917 user64_addr_t psu_buf; 1918 user64_addr_t psu_src_nodes; 1919 } psn_u __attribute__((aligned(8))); 1920 }; 1921 #endif /* KERNEL */ 1922 1923 struct pfioc_if { 1924 char ifname[IFNAMSIZ]; 1925 }; 1926 1927 struct pfioc_tm { 1928 int timeout; 1929 int seconds; 1930 }; 1931 1932 struct pfioc_limit { 1933 int index; 1934 unsigned limit; 1935 }; 1936 1937 struct pfioc_altq { 1938 u_int32_t action; 1939 u_int32_t ticket; 1940 u_int32_t nr; 1941 struct pf_altq altq __attribute__((aligned(8))); 1942 }; 1943 1944 struct pfioc_qstats { 1945 u_int32_t ticket; 1946 u_int32_t nr; 1947 void *buf __attribute__((aligned(8))); 1948 int nbytes __attribute__((aligned(8))); 1949 u_int8_t scheduler; 1950 }; 1951 1952 struct pfioc_ruleset { 1953 u_int32_t nr; 1954 char path[MAXPATHLEN]; 1955 char name[PF_ANCHOR_NAME_SIZE]; 1956 }; 1957 1958 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1959 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1960 struct pfioc_trans { 1961 int size; /* number of elements */ 1962 int esize; /* size of each element in bytes */ 1963 struct pfioc_trans_e { 1964 int rs_num; 1965 char anchor[MAXPATHLEN]; 1966 u_int32_t ticket; 1967 } *array __attribute__((aligned(8))); 1968 }; 1969 1970 #ifdef KERNEL 1971 struct pfioc_trans_32 { 1972 int size; /* number of elements */ 1973 int esize; /* size of each element in bytes */ 1974 user32_addr_t array __attribute__((aligned(8))); 1975 }; 1976 1977 struct pfioc_trans_64 { 1978 int size; /* number of elements */ 1979 int esize; /* size of each element in bytes */ 1980 user64_addr_t array __attribute__((aligned(8))); 1981 }; 1982 #endif /* KERNEL */ 1983 1984 1985 #define PFR_FLAG_ATOMIC 0x00000001 1986 #define PFR_FLAG_DUMMY 0x00000002 1987 #define PFR_FLAG_FEEDBACK 0x00000004 1988 #define PFR_FLAG_CLSTATS 0x00000008 1989 #define PFR_FLAG_ADDRSTOO 0x00000010 1990 #define PFR_FLAG_REPLACE 0x00000020 1991 #define PFR_FLAG_ALLRSETS 0x00000040 1992 #define PFR_FLAG_ALLMASK 0x0000007F 1993 #ifdef KERNEL 1994 #define PFR_FLAG_USERIOCTL 0x10000000 1995 #endif /* KERNEL */ 1996 1997 struct pfioc_table { 1998 struct pfr_table pfrio_table; 1999 void *pfrio_buffer __attribute__((aligned(8))); 2000 int pfrio_esize __attribute__((aligned(8))); 2001 int pfrio_size; 2002 int pfrio_size2; 2003 int pfrio_nadd; 2004 int pfrio_ndel; 2005 int pfrio_nchange; 2006 int pfrio_flags; 2007 u_int32_t pfrio_ticket; 2008 }; 2009 #define pfrio_exists pfrio_nadd 2010 #define pfrio_nzero pfrio_nadd 2011 #define pfrio_nmatch pfrio_nadd 2012 #define pfrio_naddr pfrio_size2 2013 #define pfrio_setflag pfrio_size2 2014 #define pfrio_clrflag pfrio_nadd 2015 2016 #ifdef KERNEL 2017 struct pfioc_table_32 { 2018 struct pfr_table pfrio_table; 2019 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 2020 int pfrio_esize __attribute__((aligned(8))); 2021 int pfrio_size; 2022 int pfrio_size2; 2023 int pfrio_nadd; 2024 int pfrio_ndel; 2025 int pfrio_nchange; 2026 int pfrio_flags; 2027 u_int32_t pfrio_ticket; 2028 }; 2029 2030 struct pfioc_table_64 { 2031 struct pfr_table pfrio_table; 2032 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2033 int pfrio_esize __attribute__((aligned(8))); 2034 int pfrio_size; 2035 int pfrio_size2; 2036 int pfrio_nadd; 2037 int pfrio_ndel; 2038 int pfrio_nchange; 2039 int pfrio_flags; 2040 u_int32_t pfrio_ticket; 2041 }; 2042 #endif /* KERNEL */ 2043 2044 struct pfioc_iface { 2045 char pfiio_name[IFNAMSIZ]; 2046 void *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 2053 #ifdef KERNEL 2054 struct pfioc_iface_32 { 2055 char pfiio_name[IFNAMSIZ]; 2056 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2057 int pfiio_esize __attribute__((aligned(8))); 2058 int pfiio_size; 2059 int pfiio_nzero; 2060 int pfiio_flags; 2061 }; 2062 2063 struct pfioc_iface_64 { 2064 char pfiio_name[IFNAMSIZ]; 2065 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2066 int pfiio_esize __attribute__((aligned(8))); 2067 int pfiio_size; 2068 int pfiio_nzero; 2069 int pfiio_flags; 2070 }; 2071 #endif /* KERNEL */ 2072 2073 struct pf_ifspeed { 2074 char ifname[IFNAMSIZ]; 2075 u_int64_t baudrate; 2076 }; 2077 2078 /* 2079 * ioctl operations 2080 */ 2081 2082 #define DIOCSTART _IO ('D', 1) 2083 #define DIOCSTOP _IO ('D', 2) 2084 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2085 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2086 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2087 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2088 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2089 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2090 /* XXX cut 10 - 17 */ 2091 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2092 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2093 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2094 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2095 #define DIOCCLRSTATUS _IO ('D', 22) 2096 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2097 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2098 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2099 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2100 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2101 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2102 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2103 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2104 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2105 #define DIOCCLRRULECTRS _IO ('D', 38) 2106 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2107 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2108 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2109 #define DIOCSTARTALTQ _IO ('D', 42) 2110 #define DIOCSTOPALTQ _IO ('D', 43) 2111 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2112 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2113 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2114 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2115 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2116 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2117 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2118 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2119 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2120 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2121 /* XXX cut 55 - 57 */ 2122 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2123 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2124 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2125 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2126 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2127 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2128 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2129 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2130 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2131 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2132 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2133 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2134 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2135 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2136 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2137 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2138 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2139 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2140 #define DIOCOSFPFLUSH _IO('D', 78) 2141 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2142 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2143 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2144 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2145 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2146 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2147 #define DIOCCLRSRCNODES _IO('D', 85) 2148 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2149 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2150 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2151 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2152 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2153 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2154 2155 #ifdef KERNEL 2156 RB_HEAD(pf_src_tree, pf_src_node); 2157 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2158 pf_src_compare); 2159 extern struct pf_src_tree tree_src_tracking; 2160 2161 RB_HEAD(pf_state_tree_id, pf_state); 2162 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2163 entry_id, pf_state_compare_id); 2164 extern struct pf_state_tree_id tree_id; 2165 extern struct pf_state_queue state_list; 2166 2167 TAILQ_HEAD(pf_poolqueue, pf_pool); 2168 extern struct pf_poolqueue pf_pools[2]; 2169 extern struct pf_palist pf_pabuf; 2170 extern u_int32_t ticket_pabuf; 2171 extern struct pf_poolqueue *pf_pools_active; 2172 extern struct pf_poolqueue *pf_pools_inactive; 2173 2174 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2175 struct pf_addr_wrap *); 2176 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2177 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2178 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2179 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2180 2181 extern struct pool pf_src_tree_pl, pf_rule_pl; 2182 extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2183 extern struct pool pf_state_scrub_pl; 2184 extern struct pool pf_app_state_pl; 2185 2186 extern struct thread *pf_purge_thread; 2187 2188 __private_extern__ void pfinit(void); 2189 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2190 __private_extern__ void pf_purge_expired_src_nodes(void); 2191 __private_extern__ void pf_purge_expired_states(u_int32_t); 2192 __private_extern__ void pf_unlink_state(struct pf_state *); 2193 __private_extern__ void pf_free_state(struct pf_state *); 2194 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2195 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2196 struct pf_rule *, struct pf_addr *, sa_family_t); 2197 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2198 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2199 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2200 u_int, int *); 2201 __private_extern__ void pf_print_state(struct pf_state *); 2202 __private_extern__ void pf_print_flags(u_int8_t); 2203 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2204 u_int8_t); 2205 2206 extern struct ifnet *sync_ifp; 2207 extern struct pf_rule pf_default_rule; 2208 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2209 u_int8_t); 2210 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2211 2212 struct ip_fw_args; 2213 2214 extern boolean_t is_nlc_enabled_glb; 2215 extern boolean_t pf_is_nlc_enabled(void); 2216 2217 #if INET 2218 __private_extern__ int pf_test(int, struct ifnet *, pbuf_t **, 2219 struct ether_header *, struct ip_fw_args *); 2220 __private_extern__ int pf_test_mbuf(int, struct ifnet *, struct mbuf **, 2221 struct ether_header *, struct ip_fw_args *); 2222 #endif /* INET */ 2223 2224 #if INET6 2225 __private_extern__ int pf_test6(int, struct ifnet *, pbuf_t **, 2226 struct ether_header *, struct ip_fw_args *); 2227 __private_extern__ int pf_test6_mbuf(int, struct ifnet *, struct mbuf **, 2228 struct ether_header *, struct ip_fw_args *); 2229 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2230 struct pf_addr *, struct pf_addr *, u_int8_t); 2231 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2232 #endif /* INET6 */ 2233 2234 __private_extern__ void *pf_lazy_makewritable(struct pf_pdesc *, 2235 pbuf_t *, int); 2236 __private_extern__ void *pf_pull_hdr(pbuf_t *, int, void *, int, 2237 u_short *, u_short *, sa_family_t); 2238 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2239 __private_extern__ int pflog_packet(struct pfi_kif *, pbuf_t *, 2240 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2241 struct pf_ruleset *, struct pf_pdesc *); 2242 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2243 struct pf_addr *, struct pf_addr *, sa_family_t); 2244 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2245 struct pf_addr *, sa_family_t); 2246 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2247 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2248 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2249 union pf_state_xport *); 2250 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2251 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2252 2253 __private_extern__ void pf_normalize_init(void); 2254 __private_extern__ int pf_normalize_isempty(void); 2255 __private_extern__ int pf_normalize_ip(pbuf_t *, int, struct pfi_kif *, 2256 u_short *, struct pf_pdesc *); 2257 __private_extern__ int pf_normalize_ip6(pbuf_t *, int, struct pfi_kif *, 2258 u_short *, struct pf_pdesc *); 2259 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, pbuf_t *, 2260 int, int, void *, struct pf_pdesc *); 2261 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2262 __private_extern__ int pf_normalize_tcp_init(pbuf_t *, int, 2263 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2264 struct pf_state_peer *); 2265 __private_extern__ int pf_normalize_tcp_stateful(pbuf_t *, int, 2266 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2267 struct pf_state_peer *, struct pf_state_peer *, int *); 2268 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2269 __private_extern__ void pf_purge_expired_fragments(void); 2270 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2271 struct pfi_kif *); 2272 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2273 struct pf_addr_wrap *); 2274 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2275 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2276 struct pf_state_key *); 2277 __private_extern__ void pfr_initialize(void); 2278 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2279 sa_family_t); 2280 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2281 sa_family_t, u_int64_t, int, int, int); 2282 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2283 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2284 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2285 struct pfi_dynaddr *); 2286 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2287 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2288 char *); 2289 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2290 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2291 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2292 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2293 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2294 int *, int); 2295 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2296 int *, int); 2297 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2298 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2299 int *, int); 2300 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2301 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2302 u_int64_t); 2303 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2304 int, int *, int); 2305 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2306 int, int *, int); 2307 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2308 int, int *, int *, int *, int *, int, u_int32_t); 2309 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2310 int *, int); 2311 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2312 int *, int); 2313 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2314 int, int *, int); 2315 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2316 int, int *, int); 2317 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2318 int); 2319 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2320 int); 2321 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2322 int *, int); 2323 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2324 int, int *, int *, u_int32_t, int); 2325 2326 extern struct pfi_kif *pfi_all; 2327 2328 __private_extern__ void pfi_initialize(void); 2329 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2330 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2331 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2332 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2333 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2334 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2335 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2336 sa_family_t); 2337 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2338 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2339 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2340 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2341 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2342 __private_extern__ int pfi_set_flags(const char *, int); 2343 __private_extern__ int pfi_clear_flags(const char *, int); 2344 2345 __private_extern__ u_int16_t pf_tagname2tag(char *); 2346 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2347 __private_extern__ void pf_tag_ref(u_int16_t); 2348 __private_extern__ void pf_tag_unref(u_int16_t); 2349 __private_extern__ int pf_tag_packet(pbuf_t *, struct pf_mtag *, 2350 int, unsigned int, struct pf_pdesc *); 2351 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2352 struct pf_rule **, struct pf_rule **, int *); 2353 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2354 struct pf_rule **, struct pf_rule **, int *); 2355 __private_extern__ u_int32_t pf_qname2qid(char *); 2356 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2357 __private_extern__ void pf_qid_unref(u_int32_t); 2358 2359 extern struct pf_status pf_status; 2360 extern struct pool pf_frent_pl, pf_frag_pl; 2361 2362 struct pf_pool_limit { 2363 void *pp; 2364 unsigned limit; 2365 }; 2366 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2367 2368 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2369 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2370 __private_extern__ int pf_ifaddr_hook(struct ifnet *); 2371 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2372 2373 /* 2374 * The following are defined with "private extern" storage class for 2375 * kernel, and "extern" for user-space. 2376 */ 2377 extern struct pf_anchor_global pf_anchors; 2378 extern struct pf_anchor pf_main_anchor; 2379 #define pf_main_ruleset pf_main_anchor.ruleset 2380 2381 extern int pf_is_enabled; 2382 extern int16_t pf_nat64_configured; 2383 #define PF_IS_ENABLED (pf_is_enabled != 0) 2384 extern u_int32_t pf_hash_seed; 2385 2386 /* these ruleset functions can be linked into userland programs (pfctl) */ 2387 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2388 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2389 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2390 const struct pf_ruleset *, const char *); 2391 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2392 const struct pf_rule *, struct pfioc_rule *); 2393 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2394 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2395 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2396 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2397 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2398 const char *, int, int *); 2399 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2400 __private_extern__ void pf_rs_initialize(void); 2401 2402 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2403 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2404 pbuf_t *, int, const struct tcphdr *); 2405 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2406 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2407 __private_extern__ void pf_osfp_flush(void); 2408 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2409 __private_extern__ void pf_osfp_initialize(void); 2410 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2411 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2412 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2413 __private_extern__ struct pf_mtag *pf_find_mtag_pbuf(pbuf_t *); 2414 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2415 __private_extern__ struct pf_mtag *pf_get_mtag_pbuf(pbuf_t *); 2416 #else /* !KERNEL */ 2417 extern struct pf_anchor_global pf_anchors; 2418 extern struct pf_anchor pf_main_anchor; 2419 #define pf_main_ruleset pf_main_anchor.ruleset 2420 2421 /* these ruleset functions can be linked into userland programs (pfctl) */ 2422 extern int pf_get_ruleset_number(u_int8_t); 2423 extern void pf_init_ruleset(struct pf_ruleset *); 2424 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2425 const char *); 2426 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2427 struct pfioc_rule *); 2428 extern void pf_anchor_remove(struct pf_rule *); 2429 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2430 extern struct pf_anchor *pf_find_anchor(const char *); 2431 extern struct pf_ruleset *pf_find_ruleset(const char *); 2432 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2433 const char *, int, int *); 2434 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2435 extern void pf_rs_initialize(void); 2436 #endif /* !KERNEL */ 2437 2438 #ifdef __cplusplus 2439 } 2440 #endif 2441 #endif /* PF || !KERNEL */ 2442 #endif /* PRIVATE */ 2443 #endif /* _NET_PFVAR_H_ */ 2444