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_VO 0x18 784 #define SC_CTL 0x19 785 786 /* diffserve code points */ 787 #define DSCP_MASK 0xfc 788 #define DSCP_CUMASK 0x03 789 #define DSCP_EF 0xb8 790 #define DSCP_AF11 0x28 791 #define DSCP_AF12 0x30 792 #define DSCP_AF13 0x38 793 #define DSCP_AF21 0x48 794 #define DSCP_AF22 0x50 795 #define DSCP_AF23 0x58 796 #define DSCP_AF31 0x68 797 #define DSCP_AF32 0x70 798 #define DSCP_AF33 0x78 799 #define DSCP_AF41 0x88 800 #define DSCP_AF42 0x90 801 #define DSCP_AF43 0x98 802 #define AF_CLASSMASK 0xe0 803 #define AF_DROPPRECMASK 0x18 804 u_int8_t tos; 805 u_int8_t anchor_relative; 806 u_int8_t anchor_wildcard; 807 808 #define PF_FLUSH 0x01 809 #define PF_FLUSH_GLOBAL 0x02 810 u_int8_t flush; 811 812 u_int8_t proto_variant; 813 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 814 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 815 u_int32_t dnpipe; 816 u_int32_t dntype; 817 }; 818 819 /* pf device identifiers */ 820 #define PFDEV_PF 0 821 #define PFDEV_PFM 1 822 #define PFDEV_MAX 2 823 824 /* rule flags */ 825 #define PFRULE_DROP 0x0000 826 #define PFRULE_RETURNRST 0x0001 827 #define PFRULE_FRAGMENT 0x0002 828 #define PFRULE_RETURNICMP 0x0004 829 #define PFRULE_RETURN 0x0008 830 #define PFRULE_NOSYNC 0x0010 831 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 832 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 833 834 /* scrub flags */ 835 #define PFRULE_NODF 0x0100 836 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 837 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 838 #define PFRULE_RANDOMID 0x0800 839 #define PFRULE_REASSEMBLE_TCP 0x1000 840 841 /* rule flags for TOS/DSCP/service class differentiation */ 842 #define PFRULE_TOS 0x2000 843 #define PFRULE_DSCP 0x4000 844 #define PFRULE_SC 0x8000 845 846 /* rule flags again */ 847 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 848 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 849 850 #define PFSTATE_HIWAT 10000 /* default state table size */ 851 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 852 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 853 854 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 855 856 enum pf_extmap { 857 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 858 PF_EXTMAP_AD, /* Address-dependent mapping */ 859 PF_EXTMAP_EI /* Endpoint-independent mapping */ 860 }; 861 862 enum pf_extfilter { 863 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 864 PF_EXTFILTER_AD, /* Address-dependent filtering */ 865 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 866 }; 867 868 struct pf_threshold { 869 u_int32_t limit; 870 #define PF_THRESHOLD_MULT 1000 871 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 872 u_int32_t seconds; 873 u_int32_t count; 874 u_int32_t last; 875 }; 876 877 struct pf_src_node { 878 RB_ENTRY(pf_src_node) entry; 879 struct pf_addr addr; 880 struct pf_addr raddr; 881 union pf_rule_ptr rule; 882 #ifdef KERNEL 883 struct pfi_kif *kif; 884 #else /* !KERNEL */ 885 void *kif; 886 #endif /* !KERNEL */ 887 u_int64_t bytes[2]; 888 u_int64_t packets[2]; 889 u_int32_t states; 890 u_int32_t conn; 891 struct pf_threshold conn_rate; 892 u_int64_t creation; 893 u_int64_t expire; 894 sa_family_t af; 895 u_int8_t ruletype; 896 }; 897 898 #define PFSNODE_HIWAT 10000 /* default source node table size */ 899 900 #ifdef KERNEL 901 struct pf_state_scrub { 902 struct timeval pfss_last; /* time received last packet */ 903 u_int32_t pfss_tsecr; /* last echoed timestamp */ 904 u_int32_t pfss_tsval; /* largest timestamp */ 905 u_int32_t pfss_tsval0; /* original timestamp */ 906 u_int16_t pfss_flags; 907 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 908 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 909 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 910 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 911 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 912 u_int8_t pfss_ttl; /* stashed TTL */ 913 u_int8_t pad; 914 u_int32_t pfss_ts_mod; /* timestamp modulation */ 915 }; 916 #endif /* KERNEL */ 917 918 union pf_state_xport { 919 u_int16_t port; 920 u_int16_t call_id; 921 u_int32_t spi; 922 }; 923 924 struct pf_state_host { 925 struct pf_addr addr; 926 union pf_state_xport xport; 927 }; 928 929 #ifdef KERNEL 930 struct pf_state_peer { 931 u_int32_t seqlo; /* Max sequence number sent */ 932 u_int32_t seqhi; /* Max the other end ACKd + win */ 933 u_int32_t seqdiff; /* Sequence number modulator */ 934 u_int16_t max_win; /* largest window (pre scaling) */ 935 u_int8_t state; /* active state level */ 936 u_int8_t wscale; /* window scaling factor */ 937 u_int16_t mss; /* Maximum segment size option */ 938 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 939 struct pf_state_scrub *scrub; /* state is scrubbed */ 940 u_int8_t pad[3]; 941 }; 942 943 TAILQ_HEAD(pf_state_queue, pf_state); 944 945 struct pf_state; 946 struct pf_pdesc; 947 struct pf_app_state; 948 949 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 950 struct pfi_kif *); 951 952 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 953 954 struct pf_pptp_state { 955 struct pf_state *grev1_state; 956 }; 957 958 struct pf_grev1_state { 959 struct pf_state *pptp_state; 960 }; 961 962 struct pf_ike_state { 963 u_int64_t cookie; 964 }; 965 966 struct pf_app_state { 967 pf_app_handler handler; 968 pf_app_compare compare_lan_ext; 969 pf_app_compare compare_ext_gwy; 970 union { 971 struct pf_pptp_state pptp; 972 struct pf_grev1_state grev1; 973 struct pf_ike_state ike; 974 } u; 975 }; 976 977 /* keep synced with struct pf_state, used in RB_FIND */ 978 struct pf_state_key_cmp { 979 struct pf_state_host lan; 980 struct pf_state_host gwy; 981 struct pf_state_host ext_lan; 982 struct pf_state_host ext_gwy; 983 sa_family_t af_lan; 984 sa_family_t af_gwy; 985 u_int8_t proto; 986 u_int8_t direction; 987 u_int8_t proto_variant; 988 struct pf_app_state *app_state; 989 }; 990 991 TAILQ_HEAD(pf_statelist, pf_state); 992 993 struct pf_state_key { 994 struct pf_state_host lan; 995 struct pf_state_host gwy; 996 struct pf_state_host ext_lan; 997 struct pf_state_host ext_gwy; 998 sa_family_t af_lan; 999 sa_family_t af_gwy; 1000 u_int8_t proto; 1001 u_int8_t direction; 1002 u_int8_t proto_variant; 1003 struct pf_app_state *app_state; 1004 u_int32_t flowsrc; 1005 u_int32_t flowhash; 1006 1007 RB_ENTRY(pf_state_key) entry_lan_ext; 1008 RB_ENTRY(pf_state_key) entry_ext_gwy; 1009 struct pf_statelist states; 1010 u_int32_t refcnt; 1011 }; 1012 1013 1014 /* keep synced with struct pf_state, used in RB_FIND */ 1015 struct pf_state_cmp { 1016 u_int64_t id; 1017 u_int32_t creatorid; 1018 u_int32_t pad; 1019 }; 1020 1021 /* flowhash key (12-bytes multiple for performance) */ 1022 struct pf_flowhash_key { 1023 struct pf_state_host ap1; /* address+port blob 1 */ 1024 struct pf_state_host ap2; /* address+port blob 2 */ 1025 u_int32_t af; 1026 u_int32_t proto; 1027 }; 1028 #endif /* KERNEL */ 1029 1030 struct hook_desc; 1031 TAILQ_HEAD(hook_desc_head, hook_desc); 1032 1033 #ifdef KERNEL 1034 struct pf_state { 1035 u_int64_t id; 1036 u_int32_t creatorid; 1037 u_int32_t pad; 1038 1039 TAILQ_ENTRY(pf_state) entry_list; 1040 TAILQ_ENTRY(pf_state) next; 1041 RB_ENTRY(pf_state) entry_id; 1042 struct pf_state_peer src; 1043 struct pf_state_peer dst; 1044 union pf_rule_ptr rule; 1045 union pf_rule_ptr anchor; 1046 union pf_rule_ptr nat_rule; 1047 struct pf_addr rt_addr; 1048 struct hook_desc_head unlink_hooks; 1049 struct pf_state_key *state_key; 1050 struct pfi_kif *kif; 1051 struct pfi_kif *rt_kif; 1052 struct pf_src_node *src_node; 1053 struct pf_src_node *nat_src_node; 1054 u_int64_t packets[2]; 1055 u_int64_t bytes[2]; 1056 u_int64_t creation; 1057 u_int64_t expire; 1058 u_int64_t pfsync_time; 1059 u_int16_t tag; 1060 u_int8_t log; 1061 u_int8_t allow_opts; 1062 u_int8_t timeout; 1063 u_int8_t sync_flags; 1064 }; 1065 #endif /* KERNEL */ 1066 1067 #define PFSTATE_NOSYNC 0x01 1068 #define PFSTATE_FROMSYNC 0x02 1069 #define PFSTATE_STALE 0x04 1070 1071 #define __packed __attribute__((__packed__)) 1072 1073 /* 1074 * Unified state structures for pulling states out of the kernel 1075 * used by pfsync(4) and the pf(4) ioctl. 1076 */ 1077 struct pfsync_state_scrub { 1078 u_int16_t pfss_flags; 1079 u_int8_t pfss_ttl; /* stashed TTL */ 1080 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1081 u_int8_t scrub_flag; 1082 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1083 } __packed; 1084 1085 struct pfsync_state_host { 1086 struct pf_addr addr; 1087 union pf_state_xport xport; 1088 u_int16_t pad[2]; 1089 } __packed; 1090 1091 struct pfsync_state_peer { 1092 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1093 u_int32_t seqlo; /* Max sequence number sent */ 1094 u_int32_t seqhi; /* Max the other end ACKd + win */ 1095 u_int32_t seqdiff; /* Sequence number modulator */ 1096 u_int16_t max_win; /* largest window (pre scaling) */ 1097 u_int16_t mss; /* Maximum segment size option */ 1098 u_int8_t state; /* active state level */ 1099 u_int8_t wscale; /* window scaling factor */ 1100 u_int8_t pad[6]; 1101 } __packed; 1102 1103 struct pfsync_state { 1104 u_int32_t id[2]; 1105 char ifname[IFNAMSIZ]; 1106 struct pfsync_state_host lan; 1107 struct pfsync_state_host gwy; 1108 struct pfsync_state_host ext_lan; 1109 struct pfsync_state_host ext_gwy; 1110 struct pfsync_state_peer src; 1111 struct pfsync_state_peer dst; 1112 struct pf_addr rt_addr; 1113 struct hook_desc_head unlink_hooks; 1114 #if !defined(__LP64__) 1115 u_int32_t _pad[2]; 1116 #endif /* !__LP64__ */ 1117 u_int32_t rule; 1118 u_int32_t anchor; 1119 u_int32_t nat_rule; 1120 u_int64_t creation; 1121 u_int64_t expire; 1122 u_int32_t packets[2][2]; 1123 u_int32_t bytes[2][2]; 1124 u_int32_t creatorid; 1125 u_int16_t tag; 1126 sa_family_t af_lan; 1127 sa_family_t af_gwy; 1128 u_int8_t proto; 1129 u_int8_t direction; 1130 u_int8_t log; 1131 u_int8_t allow_opts; 1132 u_int8_t timeout; 1133 u_int8_t sync_flags; 1134 u_int8_t updates; 1135 u_int8_t proto_variant; 1136 u_int8_t __pad; 1137 u_int32_t flowhash; 1138 } __packed; 1139 1140 #define PFSYNC_FLAG_COMPRESS 0x01 1141 #define PFSYNC_FLAG_STALE 0x02 1142 #define PFSYNC_FLAG_SRCNODE 0x04 1143 #define PFSYNC_FLAG_NATSRCNODE 0x08 1144 1145 #ifdef KERNEL 1146 /* for copies to/from userland via pf_ioctl() */ 1147 #define pf_state_peer_to_pfsync(s, d) do { \ 1148 (d)->seqlo = (s)->seqlo; \ 1149 (d)->seqhi = (s)->seqhi; \ 1150 (d)->seqdiff = (s)->seqdiff; \ 1151 (d)->max_win = (s)->max_win; \ 1152 (d)->mss = (s)->mss; \ 1153 (d)->state = (s)->state; \ 1154 (d)->wscale = (s)->wscale; \ 1155 if ((s)->scrub) { \ 1156 (d)->scrub.pfss_flags = \ 1157 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1158 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1159 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1160 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1161 } \ 1162 } while (0) 1163 1164 #define pf_state_peer_from_pfsync(s, d) do { \ 1165 (d)->seqlo = (s)->seqlo; \ 1166 (d)->seqhi = (s)->seqhi; \ 1167 (d)->seqdiff = (s)->seqdiff; \ 1168 (d)->max_win = (s)->max_win; \ 1169 (d)->mss = ntohs((s)->mss); \ 1170 (d)->state = (s)->state; \ 1171 (d)->wscale = (s)->wscale; \ 1172 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1173 (d)->scrub != NULL) { \ 1174 (d)->scrub->pfss_flags = \ 1175 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1176 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1177 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1178 } \ 1179 } while (0) 1180 #endif /* KERNEL */ 1181 1182 #define pf_state_counter_to_pfsync(s, d) do { \ 1183 d[0] = (s>>32)&0xffffffff; \ 1184 d[1] = s&0xffffffff; \ 1185 } while (0) 1186 1187 #define pf_state_counter_from_pfsync(s) \ 1188 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1189 1190 1191 1192 TAILQ_HEAD(pf_rulequeue, pf_rule); 1193 1194 struct pf_anchor; 1195 1196 struct pf_ruleset { 1197 struct { 1198 struct pf_rulequeue queues[2]; 1199 struct { 1200 struct pf_rulequeue *ptr; 1201 struct pf_rule **ptr_array; 1202 u_int32_t rcount; 1203 u_int32_t ticket; 1204 int open; 1205 } active, inactive; 1206 } rules[PF_RULESET_MAX]; 1207 struct pf_anchor *anchor; 1208 u_int32_t tticket; 1209 int tables; 1210 int topen; 1211 }; 1212 1213 RB_HEAD(pf_anchor_global, pf_anchor); 1214 RB_HEAD(pf_anchor_node, pf_anchor); 1215 struct pf_anchor { 1216 RB_ENTRY(pf_anchor) entry_global; 1217 RB_ENTRY(pf_anchor) entry_node; 1218 struct pf_anchor *parent; 1219 struct pf_anchor_node children; 1220 char name[PF_ANCHOR_NAME_SIZE]; 1221 char path[MAXPATHLEN]; 1222 struct pf_ruleset ruleset; 1223 int refcnt; /* anchor rules */ 1224 int match; 1225 char owner[PF_OWNER_NAME_SIZE]; 1226 }; 1227 #ifdef KERNEL 1228 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1229 pf_anchor_compare); 1230 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1231 pf_anchor_compare); 1232 #else /* !KERNEL */ 1233 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1234 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1235 #endif /* !KERNEL */ 1236 1237 #define PF_RESERVED_ANCHOR "_pf" 1238 1239 #define PFR_TFLAG_PERSIST 0x00000001 1240 #define PFR_TFLAG_CONST 0x00000002 1241 #define PFR_TFLAG_ACTIVE 0x00000004 1242 #define PFR_TFLAG_INACTIVE 0x00000008 1243 #define PFR_TFLAG_REFERENCED 0x00000010 1244 #define PFR_TFLAG_REFDANCHOR 0x00000020 1245 #define PFR_TFLAG_USRMASK 0x00000003 1246 #define PFR_TFLAG_SETMASK 0x0000003C 1247 #define PFR_TFLAG_ALLMASK 0x0000003F 1248 1249 struct pfr_table { 1250 char pfrt_anchor[MAXPATHLEN]; 1251 char pfrt_name[PF_TABLE_NAME_SIZE]; 1252 u_int32_t pfrt_flags; 1253 u_int8_t pfrt_fback; 1254 }; 1255 1256 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1257 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1258 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1259 1260 struct pfr_addr { 1261 union { 1262 struct in_addr _pfra_ip4addr; 1263 struct in6_addr _pfra_ip6addr; 1264 } pfra_u; 1265 u_int8_t pfra_af; 1266 u_int8_t pfra_net; 1267 u_int8_t pfra_not; 1268 u_int8_t pfra_fback; 1269 }; 1270 #define pfra_ip4addr pfra_u._pfra_ip4addr 1271 #define pfra_ip6addr pfra_u._pfra_ip6addr 1272 1273 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1274 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1275 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1276 1277 struct pfr_astats { 1278 struct pfr_addr pfras_a; 1279 #if !defined(__LP64__) 1280 u_int32_t _pad; 1281 #endif /* !__LP64__ */ 1282 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1283 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1284 u_int64_t pfras_tzero; 1285 }; 1286 1287 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1288 1289 struct pfr_tstats { 1290 struct pfr_table pfrts_t; 1291 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1292 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1293 u_int64_t pfrts_match; 1294 u_int64_t pfrts_nomatch; 1295 u_int64_t pfrts_tzero; 1296 int pfrts_cnt; 1297 int pfrts_refcnt[PFR_REFCNT_MAX]; 1298 #if !defined(__LP64__) 1299 u_int32_t _pad; 1300 #endif /* !__LP64__ */ 1301 }; 1302 #define pfrts_name pfrts_t.pfrt_name 1303 #define pfrts_flags pfrts_t.pfrt_flags 1304 1305 #ifdef KERNEL 1306 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1307 struct pfr_kentry { 1308 struct radix_node pfrke_node[2]; 1309 union sockaddr_union pfrke_sa; 1310 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1311 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1312 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1313 u_int64_t pfrke_tzero; 1314 u_int8_t pfrke_af; 1315 u_int8_t pfrke_net; 1316 u_int8_t pfrke_not; 1317 u_int8_t pfrke_mark; 1318 u_int8_t pfrke_intrpool; 1319 }; 1320 1321 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1322 RB_HEAD(pfr_ktablehead, pfr_ktable); 1323 struct pfr_ktable { 1324 struct pfr_tstats pfrkt_ts; 1325 RB_ENTRY(pfr_ktable) pfrkt_tree; 1326 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1327 struct radix_node_head *pfrkt_ip4; 1328 struct radix_node_head *pfrkt_ip6; 1329 struct pfr_ktable *pfrkt_shadow; 1330 struct pfr_ktable *pfrkt_root; 1331 struct pf_ruleset *pfrkt_rs; 1332 u_int64_t pfrkt_larg; 1333 u_int32_t pfrkt_nflags; 1334 }; 1335 #define pfrkt_t pfrkt_ts.pfrts_t 1336 #define pfrkt_name pfrkt_t.pfrt_name 1337 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1338 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1339 #define pfrkt_flags pfrkt_t.pfrt_flags 1340 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1341 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1342 #define pfrkt_packets pfrkt_ts.pfrts_packets 1343 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1344 #define pfrkt_match pfrkt_ts.pfrts_match 1345 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1346 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1347 1348 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1349 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1350 entry_lan_ext, pf_state_compare_lan_ext); 1351 1352 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1353 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1354 entry_ext_gwy, pf_state_compare_ext_gwy); 1355 1356 RB_HEAD(pfi_ifhead, pfi_kif); 1357 1358 /* state tables */ 1359 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1360 extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 1361 1362 /* keep synced with pfi_kif, used in RB_FIND */ 1363 struct pfi_kif_cmp { 1364 char pfik_name[IFNAMSIZ]; 1365 }; 1366 1367 struct pfi_kif { 1368 char pfik_name[IFNAMSIZ]; 1369 RB_ENTRY(pfi_kif) pfik_tree; 1370 u_int64_t pfik_packets[2][2][2]; 1371 u_int64_t pfik_bytes[2][2][2]; 1372 u_int64_t pfik_tzero; 1373 int pfik_flags; 1374 void *pfik_ah_cookie; 1375 struct ifnet *pfik_ifp; 1376 int pfik_states; 1377 int pfik_rules; 1378 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; 1379 }; 1380 1381 enum pfi_kif_refs { 1382 PFI_KIF_REF_NONE, 1383 PFI_KIF_REF_STATE, 1384 PFI_KIF_REF_RULE 1385 }; 1386 1387 struct pfi_uif { 1388 #else /* !KERNEL */ 1389 struct pfi_kif { 1390 #endif /* !KERNEL */ 1391 char pfik_name[IFNAMSIZ]; 1392 u_int64_t pfik_packets[2][2][2]; 1393 u_int64_t pfik_bytes[2][2][2]; 1394 u_int64_t pfik_tzero; 1395 int pfik_flags; 1396 int pfik_states; 1397 int pfik_rules; 1398 #if !defined(__LP64__) 1399 u_int32_t _pad; 1400 #endif /* !__LP64__ */ 1401 }; 1402 1403 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 1404 1405 #ifdef KERNEL 1406 struct pf_pdesc { 1407 struct { 1408 int done; 1409 uid_t uid; 1410 gid_t gid; 1411 pid_t pid; 1412 } lookup; 1413 u_int64_t tot_len; /* Make Mickey money */ 1414 union { 1415 struct tcphdr *tcp; 1416 struct udphdr *udp; 1417 struct icmp *icmp; 1418 #if INET6 1419 struct icmp6_hdr *icmp6; 1420 #endif /* INET6 */ 1421 struct pf_grev1_hdr *grev1; 1422 struct pf_esp_hdr *esp; 1423 void *any; 1424 } hdr; 1425 1426 /* XXX TODO: Change baddr and naddr to *saddr */ 1427 struct pf_addr baddr; /* src address before translation */ 1428 struct pf_addr bdaddr; /* dst address before translation */ 1429 struct pf_addr naddr; /* src address after translation */ 1430 struct pf_addr ndaddr; /* dst address after translation */ 1431 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1432 struct pf_addr *src; 1433 struct pf_addr *dst; 1434 struct ether_header 1435 *eh; 1436 pbuf_t *mp; 1437 int lmw; /* lazy writable offset */ 1438 struct pf_mtag *pf_mtag; 1439 u_int16_t *ip_sum; 1440 u_int32_t off; /* protocol header offset */ 1441 u_int32_t hdrlen; /* protocol header length */ 1442 u_int32_t p_len; /* total length of payload */ 1443 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1444 /* state code. Easier than tags */ 1445 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1446 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1447 #define PFDESC_IP_FRAG 0x0004 /* This is a fragment */ 1448 sa_family_t af; 1449 sa_family_t naf; /* address family after translation */ 1450 u_int8_t proto; 1451 u_int8_t tos; 1452 u_int8_t ttl; 1453 u_int8_t proto_variant; 1454 mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ 1455 u_int32_t pktflags; /* mbuf packet flags (PKTF) */ 1456 u_int32_t flowsrc; /* flow source (FLOWSRC) */ 1457 u_int32_t flowhash; /* flow hash to identify the sender */ 1458 }; 1459 #endif /* KERNEL */ 1460 1461 /* flags for RDR options */ 1462 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1463 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1464 1465 /* Reasons code for passing/dropping a packet */ 1466 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1467 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1468 #define PFRES_FRAG 2 /* Dropping following fragment */ 1469 #define PFRES_SHORT 3 /* Dropping short packet */ 1470 #define PFRES_NORM 4 /* Dropping by normalizer */ 1471 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1472 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1473 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1474 #define PFRES_IPOPTIONS 8 /* IP option */ 1475 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1476 #define PFRES_BADSTATE 10 /* State mismatch */ 1477 #define PFRES_STATEINS 11 /* State insertion failure */ 1478 #define PFRES_MAXSTATES 12 /* State limit */ 1479 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1480 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1481 #define PFRES_DUMMYNET 15 /* Dummynet */ 1482 #define PFRES_MAX 16 /* total+1 */ 1483 1484 #define PFRES_NAMES { \ 1485 "match", \ 1486 "bad-offset", \ 1487 "fragment", \ 1488 "short", \ 1489 "normalize", \ 1490 "memory", \ 1491 "bad-timestamp", \ 1492 "congestion", \ 1493 "ip-option", \ 1494 "proto-cksum", \ 1495 "state-mismatch", \ 1496 "state-insert", \ 1497 "state-limit", \ 1498 "src-limit", \ 1499 "synproxy", \ 1500 "dummynet", \ 1501 NULL \ 1502 } 1503 1504 /* Counters for other things we want to keep track of */ 1505 #define LCNT_STATES 0 /* states */ 1506 #define LCNT_SRCSTATES 1 /* max-src-states */ 1507 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1508 #define LCNT_SRCCONN 3 /* max-src-conn */ 1509 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1510 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1511 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1512 #define LCNT_MAX 7 /* total+1 */ 1513 1514 #define LCNT_NAMES { \ 1515 "max states per rule", \ 1516 "max-src-states", \ 1517 "max-src-nodes", \ 1518 "max-src-conn", \ 1519 "max-src-conn-rate", \ 1520 "overload table insertion", \ 1521 "overload flush states", \ 1522 NULL \ 1523 } 1524 1525 /* UDP state enumeration */ 1526 #define PFUDPS_NO_TRAFFIC 0 1527 #define PFUDPS_SINGLE 1 1528 #define PFUDPS_MULTIPLE 2 1529 1530 #define PFUDPS_NSTATES 3 /* number of state levels */ 1531 1532 #define PFUDPS_NAMES { \ 1533 "NO_TRAFFIC", \ 1534 "SINGLE", \ 1535 "MULTIPLE", \ 1536 NULL \ 1537 } 1538 1539 /* GREv1 protocol state enumeration */ 1540 #define PFGRE1S_NO_TRAFFIC 0 1541 #define PFGRE1S_INITIATING 1 1542 #define PFGRE1S_ESTABLISHED 2 1543 1544 #define PFGRE1S_NSTATES 3 /* number of state levels */ 1545 1546 #define PFGRE1S_NAMES { \ 1547 "NO_TRAFFIC", \ 1548 "INITIATING", \ 1549 "ESTABLISHED", \ 1550 NULL \ 1551 } 1552 1553 #define PFESPS_NO_TRAFFIC 0 1554 #define PFESPS_INITIATING 1 1555 #define PFESPS_ESTABLISHED 2 1556 1557 #define PFESPS_NSTATES 3 /* number of state levels */ 1558 1559 #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } 1560 1561 /* Other protocol state enumeration */ 1562 #define PFOTHERS_NO_TRAFFIC 0 1563 #define PFOTHERS_SINGLE 1 1564 #define PFOTHERS_MULTIPLE 2 1565 1566 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1567 1568 #define PFOTHERS_NAMES { \ 1569 "NO_TRAFFIC", \ 1570 "SINGLE", \ 1571 "MULTIPLE", \ 1572 NULL \ 1573 } 1574 1575 #define FCNT_STATE_SEARCH 0 1576 #define FCNT_STATE_INSERT 1 1577 #define FCNT_STATE_REMOVALS 2 1578 #define FCNT_MAX 3 1579 1580 #define SCNT_SRC_NODE_SEARCH 0 1581 #define SCNT_SRC_NODE_INSERT 1 1582 #define SCNT_SRC_NODE_REMOVALS 2 1583 #define SCNT_MAX 3 1584 1585 #ifdef KERNEL 1586 #define ACTION_SET(a, x) \ 1587 do { \ 1588 if ((a) != NULL) \ 1589 *(a) = (x); \ 1590 } while (0) 1591 1592 #define REASON_SET(a, x) \ 1593 do { \ 1594 if ((a) != NULL) \ 1595 *(a) = (x); \ 1596 if (x < PFRES_MAX) \ 1597 pf_status.counters[x]++; \ 1598 } while (0) 1599 #endif /* KERNEL */ 1600 1601 struct pf_status { 1602 u_int64_t counters[PFRES_MAX]; 1603 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1604 u_int64_t fcounters[FCNT_MAX]; 1605 u_int64_t scounters[SCNT_MAX]; 1606 u_int64_t pcounters[2][2][3]; 1607 u_int64_t bcounters[2][2]; 1608 u_int64_t stateid; 1609 u_int32_t running; 1610 u_int32_t states; 1611 u_int32_t src_nodes; 1612 u_int64_t since __attribute__((aligned(8))); 1613 u_int32_t debug; 1614 u_int32_t hostid; 1615 char ifname[IFNAMSIZ]; 1616 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; 1617 }; 1618 1619 struct cbq_opts { 1620 u_int32_t minburst; 1621 u_int32_t maxburst; 1622 u_int32_t pktsize; 1623 u_int32_t maxpktsize; 1624 u_int32_t ns_per_byte; 1625 u_int32_t maxidle; 1626 int32_t minidle; 1627 u_int32_t offtime; 1628 u_int32_t flags; 1629 }; 1630 1631 struct priq_opts { 1632 u_int32_t flags; 1633 }; 1634 1635 struct qfq_opts { 1636 u_int32_t flags; 1637 u_int32_t lmax; 1638 }; 1639 1640 struct hfsc_opts { 1641 /* real-time service curve */ 1642 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1643 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1644 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1645 u_int32_t rtsc_fl; /* service curve flags */ 1646 #if !defined(__LP64__) 1647 u_int32_t _pad; 1648 #endif /* !__LP64__ */ 1649 /* link-sharing service curve */ 1650 u_int64_t lssc_m1; 1651 u_int64_t lssc_d; 1652 u_int64_t lssc_m2; 1653 u_int32_t lssc_fl; 1654 #if !defined(__LP64__) 1655 u_int32_t __pad; 1656 #endif /* !__LP64__ */ 1657 /* upper-limit service curve */ 1658 u_int64_t ulsc_m1; 1659 u_int64_t ulsc_d; 1660 u_int64_t ulsc_m2; 1661 u_int32_t ulsc_fl; 1662 u_int32_t flags; /* scheduler flags */ 1663 }; 1664 1665 struct fairq_opts { 1666 u_int32_t nbuckets; /* hash buckets */ 1667 u_int32_t flags; 1668 u_int64_t hogs_m1; /* hog detection bandwidth */ 1669 1670 /* link-sharing service curve */ 1671 u_int64_t lssc_m1; 1672 u_int64_t lssc_d; 1673 u_int64_t lssc_m2; 1674 }; 1675 1676 /* bandwidth types */ 1677 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1678 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1679 1680 /* ALTQ rule flags */ 1681 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1682 1683 /* queue rule flags */ 1684 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1685 1686 struct pf_altq { 1687 char ifname[IFNAMSIZ]; 1688 1689 /* discipline-specific state */ 1690 void *altq_disc __attribute__((aligned(8))); 1691 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1692 #if !defined(__LP64__) 1693 u_int32_t _pad[2]; 1694 #endif /* !__LP64__ */ 1695 1696 u_int32_t aflags; /* ALTQ rule flags */ 1697 u_int32_t bwtype; /* bandwidth type */ 1698 1699 /* scheduler spec */ 1700 u_int32_t scheduler; /* scheduler type */ 1701 u_int32_t tbrsize; /* tokenbucket regulator size */ 1702 u_int64_t ifbandwidth; /* interface bandwidth */ 1703 1704 /* queue spec */ 1705 char qname[PF_QNAME_SIZE]; /* queue name */ 1706 char parent[PF_QNAME_SIZE]; /* parent name */ 1707 u_int32_t parent_qid; /* parent queue id */ 1708 u_int32_t qrflags; /* queue rule flags */ 1709 union { 1710 u_int32_t priority; /* priority */ 1711 u_int32_t weight; /* weight */ 1712 }; 1713 u_int32_t qlimit; /* queue size limit */ 1714 u_int32_t flags; /* misc flags */ 1715 #if !defined(__LP64__) 1716 u_int32_t __pad; 1717 #endif /* !__LP64__ */ 1718 u_int64_t bandwidth; /* queue bandwidth */ 1719 union { 1720 struct cbq_opts cbq_opts; 1721 struct priq_opts priq_opts; 1722 struct hfsc_opts hfsc_opts; 1723 struct fairq_opts fairq_opts; 1724 struct qfq_opts qfq_opts; 1725 } pq_u; 1726 1727 u_int32_t qid; /* return value */ 1728 }; 1729 1730 struct pf_tagname { 1731 TAILQ_ENTRY(pf_tagname) entries; 1732 char name[PF_TAG_NAME_SIZE]; 1733 u_int16_t tag; 1734 int ref; 1735 }; 1736 1737 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1738 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1739 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1740 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1741 1742 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1743 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1744 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1745 1746 /* 1747 * ioctl parameter structures 1748 */ 1749 1750 struct pfioc_pooladdr { 1751 u_int32_t action; 1752 u_int32_t ticket; 1753 u_int32_t nr; 1754 u_int32_t r_num; 1755 u_int8_t r_action; 1756 u_int8_t r_last; 1757 u_int8_t af; 1758 char anchor[MAXPATHLEN]; 1759 struct pf_pooladdr addr; 1760 }; 1761 1762 struct pfioc_rule { 1763 u_int32_t action; 1764 u_int32_t ticket; 1765 u_int32_t pool_ticket; 1766 u_int32_t nr; 1767 char anchor[MAXPATHLEN]; 1768 char anchor_call[MAXPATHLEN]; 1769 struct pf_rule rule; 1770 }; 1771 1772 struct pfioc_natlook { 1773 struct pf_addr saddr; 1774 struct pf_addr daddr; 1775 struct pf_addr rsaddr; 1776 struct pf_addr rdaddr; 1777 union pf_state_xport sxport; 1778 union pf_state_xport dxport; 1779 union pf_state_xport rsxport; 1780 union pf_state_xport rdxport; 1781 sa_family_t af; 1782 u_int8_t proto; 1783 u_int8_t proto_variant; 1784 u_int8_t direction; 1785 }; 1786 1787 struct pfioc_state { 1788 struct pfsync_state state; 1789 }; 1790 1791 struct pfioc_src_node_kill { 1792 /* XXX returns the number of src nodes killed in psnk_af */ 1793 sa_family_t psnk_af; 1794 struct pf_rule_addr psnk_src; 1795 struct pf_rule_addr psnk_dst; 1796 }; 1797 1798 struct pfioc_state_addr_kill { 1799 struct pf_addr_wrap addr; 1800 u_int8_t reserved_[3]; 1801 u_int8_t neg; 1802 union pf_rule_xport xport; 1803 }; 1804 1805 struct pfioc_state_kill { 1806 /* XXX returns the number of states killed in psk_af */ 1807 sa_family_t psk_af; 1808 u_int8_t psk_proto; 1809 u_int8_t psk_proto_variant; 1810 u_int8_t _pad; 1811 struct pfioc_state_addr_kill psk_src; 1812 struct pfioc_state_addr_kill psk_dst; 1813 char psk_ifname[IFNAMSIZ]; 1814 char psk_ownername[PF_OWNER_NAME_SIZE]; 1815 }; 1816 1817 struct pfioc_states { 1818 int ps_len; 1819 union { 1820 caddr_t psu_buf; 1821 struct pfsync_state *psu_states; 1822 } ps_u __attribute__((aligned(8))); 1823 #define ps_buf ps_u.psu_buf 1824 #define ps_states ps_u.psu_states 1825 }; 1826 1827 #ifdef KERNEL 1828 struct pfioc_states_32 { 1829 int ps_len; 1830 union { 1831 user32_addr_t psu_buf; 1832 user32_addr_t psu_states; 1833 } ps_u __attribute__((aligned(8))); 1834 }; 1835 1836 struct pfioc_states_64 { 1837 int ps_len; 1838 union { 1839 user64_addr_t psu_buf; 1840 user64_addr_t psu_states; 1841 } ps_u __attribute__((aligned(8))); 1842 }; 1843 #endif /* KERNEL */ 1844 1845 #define PFTOK_PROCNAME_LEN 64 1846 #pragma pack(1) 1847 struct pfioc_token { 1848 u_int64_t token_value; 1849 u_int64_t timestamp; 1850 pid_t pid; 1851 char proc_name[PFTOK_PROCNAME_LEN]; 1852 }; 1853 #pragma pack() 1854 1855 struct pfioc_kernel_token { 1856 SLIST_ENTRY(pfioc_kernel_token) next; 1857 struct pfioc_token token; 1858 }; 1859 1860 struct pfioc_remove_token { 1861 u_int64_t token_value; 1862 u_int64_t refcount; 1863 }; 1864 1865 struct pfioc_tokens { 1866 int size; 1867 union { 1868 caddr_t pgtu_buf; 1869 struct pfioc_token *pgtu_tokens; 1870 } pgt_u __attribute__((aligned(8))); 1871 #define pgt_buf pgt_u.pgtu_buf 1872 #define pgt_tokens pgt_u.pgtu_tokens 1873 }; 1874 1875 #ifdef KERNEL 1876 struct pfioc_tokens_32 { 1877 int size; 1878 union { 1879 user32_addr_t pgtu_buf; 1880 user32_addr_t pgtu_tokens; 1881 } pgt_u __attribute__((aligned(8))); 1882 }; 1883 1884 struct pfioc_tokens_64 { 1885 int size; 1886 union { 1887 user64_addr_t pgtu_buf; 1888 user64_addr_t pgtu_tokens; 1889 } pgt_u __attribute__((aligned(8))); 1890 }; 1891 #endif /* KERNEL */ 1892 1893 1894 struct pfioc_src_nodes { 1895 int psn_len; 1896 union { 1897 caddr_t psu_buf; 1898 struct pf_src_node *psu_src_nodes; 1899 } psn_u __attribute__((aligned(8))); 1900 #define psn_buf psn_u.psu_buf 1901 #define psn_src_nodes psn_u.psu_src_nodes 1902 }; 1903 1904 #ifdef KERNEL 1905 struct pfioc_src_nodes_32 { 1906 int psn_len; 1907 union { 1908 user32_addr_t psu_buf; 1909 user32_addr_t psu_src_nodes; 1910 } psn_u __attribute__((aligned(8))); 1911 }; 1912 1913 struct pfioc_src_nodes_64 { 1914 int psn_len; 1915 union { 1916 user64_addr_t psu_buf; 1917 user64_addr_t psu_src_nodes; 1918 } psn_u __attribute__((aligned(8))); 1919 }; 1920 #endif /* KERNEL */ 1921 1922 struct pfioc_if { 1923 char ifname[IFNAMSIZ]; 1924 }; 1925 1926 struct pfioc_tm { 1927 int timeout; 1928 int seconds; 1929 }; 1930 1931 struct pfioc_limit { 1932 int index; 1933 unsigned limit; 1934 }; 1935 1936 struct pfioc_altq { 1937 u_int32_t action; 1938 u_int32_t ticket; 1939 u_int32_t nr; 1940 struct pf_altq altq __attribute__((aligned(8))); 1941 }; 1942 1943 struct pfioc_qstats { 1944 u_int32_t ticket; 1945 u_int32_t nr; 1946 void *buf __attribute__((aligned(8))); 1947 int nbytes __attribute__((aligned(8))); 1948 u_int8_t scheduler; 1949 }; 1950 1951 struct pfioc_ruleset { 1952 u_int32_t nr; 1953 char path[MAXPATHLEN]; 1954 char name[PF_ANCHOR_NAME_SIZE]; 1955 }; 1956 1957 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1958 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1959 struct pfioc_trans { 1960 int size; /* number of elements */ 1961 int esize; /* size of each element in bytes */ 1962 struct pfioc_trans_e { 1963 int rs_num; 1964 char anchor[MAXPATHLEN]; 1965 u_int32_t ticket; 1966 } *array __attribute__((aligned(8))); 1967 }; 1968 1969 #ifdef KERNEL 1970 struct pfioc_trans_32 { 1971 int size; /* number of elements */ 1972 int esize; /* size of each element in bytes */ 1973 user32_addr_t array __attribute__((aligned(8))); 1974 }; 1975 1976 struct pfioc_trans_64 { 1977 int size; /* number of elements */ 1978 int esize; /* size of each element in bytes */ 1979 user64_addr_t array __attribute__((aligned(8))); 1980 }; 1981 #endif /* KERNEL */ 1982 1983 1984 #define PFR_FLAG_ATOMIC 0x00000001 1985 #define PFR_FLAG_DUMMY 0x00000002 1986 #define PFR_FLAG_FEEDBACK 0x00000004 1987 #define PFR_FLAG_CLSTATS 0x00000008 1988 #define PFR_FLAG_ADDRSTOO 0x00000010 1989 #define PFR_FLAG_REPLACE 0x00000020 1990 #define PFR_FLAG_ALLRSETS 0x00000040 1991 #define PFR_FLAG_ALLMASK 0x0000007F 1992 #ifdef KERNEL 1993 #define PFR_FLAG_USERIOCTL 0x10000000 1994 #endif /* KERNEL */ 1995 1996 struct pfioc_table { 1997 struct pfr_table pfrio_table; 1998 void *pfrio_buffer __attribute__((aligned(8))); 1999 int pfrio_esize __attribute__((aligned(8))); 2000 int pfrio_size; 2001 int pfrio_size2; 2002 int pfrio_nadd; 2003 int pfrio_ndel; 2004 int pfrio_nchange; 2005 int pfrio_flags; 2006 u_int32_t pfrio_ticket; 2007 }; 2008 #define pfrio_exists pfrio_nadd 2009 #define pfrio_nzero pfrio_nadd 2010 #define pfrio_nmatch pfrio_nadd 2011 #define pfrio_naddr pfrio_size2 2012 #define pfrio_setflag pfrio_size2 2013 #define pfrio_clrflag pfrio_nadd 2014 2015 #ifdef KERNEL 2016 struct pfioc_table_32 { 2017 struct pfr_table pfrio_table; 2018 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 2019 int pfrio_esize __attribute__((aligned(8))); 2020 int pfrio_size; 2021 int pfrio_size2; 2022 int pfrio_nadd; 2023 int pfrio_ndel; 2024 int pfrio_nchange; 2025 int pfrio_flags; 2026 u_int32_t pfrio_ticket; 2027 }; 2028 2029 struct pfioc_table_64 { 2030 struct pfr_table pfrio_table; 2031 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2032 int pfrio_esize __attribute__((aligned(8))); 2033 int pfrio_size; 2034 int pfrio_size2; 2035 int pfrio_nadd; 2036 int pfrio_ndel; 2037 int pfrio_nchange; 2038 int pfrio_flags; 2039 u_int32_t pfrio_ticket; 2040 }; 2041 #endif /* KERNEL */ 2042 2043 struct pfioc_iface { 2044 char pfiio_name[IFNAMSIZ]; 2045 void *pfiio_buffer __attribute__((aligned(8))); 2046 int pfiio_esize __attribute__((aligned(8))); 2047 int pfiio_size; 2048 int pfiio_nzero; 2049 int pfiio_flags; 2050 }; 2051 2052 #ifdef KERNEL 2053 struct pfioc_iface_32 { 2054 char pfiio_name[IFNAMSIZ]; 2055 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2056 int pfiio_esize __attribute__((aligned(8))); 2057 int pfiio_size; 2058 int pfiio_nzero; 2059 int pfiio_flags; 2060 }; 2061 2062 struct pfioc_iface_64 { 2063 char pfiio_name[IFNAMSIZ]; 2064 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2065 int pfiio_esize __attribute__((aligned(8))); 2066 int pfiio_size; 2067 int pfiio_nzero; 2068 int pfiio_flags; 2069 }; 2070 #endif /* KERNEL */ 2071 2072 struct pf_ifspeed { 2073 char ifname[IFNAMSIZ]; 2074 u_int64_t baudrate; 2075 }; 2076 2077 /* 2078 * ioctl operations 2079 */ 2080 2081 #define DIOCSTART _IO ('D', 1) 2082 #define DIOCSTOP _IO ('D', 2) 2083 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2084 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2085 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2086 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2087 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2088 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2089 /* XXX cut 10 - 17 */ 2090 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2091 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2092 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2093 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2094 #define DIOCCLRSTATUS _IO ('D', 22) 2095 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2096 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2097 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2098 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2099 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2100 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2101 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2102 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2103 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2104 #define DIOCCLRRULECTRS _IO ('D', 38) 2105 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2106 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2107 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2108 #define DIOCSTARTALTQ _IO ('D', 42) 2109 #define DIOCSTOPALTQ _IO ('D', 43) 2110 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2111 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2112 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2113 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2114 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2115 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2116 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2117 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2118 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2119 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2120 /* XXX cut 55 - 57 */ 2121 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2122 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2123 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2124 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2125 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2126 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2127 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2128 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2129 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2130 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2131 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2132 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2133 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2134 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2135 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2136 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2137 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2138 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2139 #define DIOCOSFPFLUSH _IO('D', 78) 2140 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2141 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2142 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2143 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2144 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2145 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2146 #define DIOCCLRSRCNODES _IO('D', 85) 2147 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2148 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2149 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2150 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2151 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2152 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2153 2154 #ifdef KERNEL 2155 RB_HEAD(pf_src_tree, pf_src_node); 2156 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2157 pf_src_compare); 2158 extern struct pf_src_tree tree_src_tracking; 2159 2160 RB_HEAD(pf_state_tree_id, pf_state); 2161 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2162 entry_id, pf_state_compare_id); 2163 extern struct pf_state_tree_id tree_id; 2164 extern struct pf_state_queue state_list; 2165 2166 TAILQ_HEAD(pf_poolqueue, pf_pool); 2167 extern struct pf_poolqueue pf_pools[2]; 2168 extern struct pf_palist pf_pabuf; 2169 extern u_int32_t ticket_pabuf; 2170 extern struct pf_poolqueue *pf_pools_active; 2171 extern struct pf_poolqueue *pf_pools_inactive; 2172 2173 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2174 struct pf_addr_wrap *); 2175 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2176 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2177 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2178 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2179 2180 extern struct pool pf_src_tree_pl, pf_rule_pl; 2181 extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2182 extern struct pool pf_state_scrub_pl; 2183 extern struct pool pf_app_state_pl; 2184 2185 extern struct thread *pf_purge_thread; 2186 2187 __private_extern__ void pfinit(void); 2188 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t); 2189 __private_extern__ void pf_purge_expired_src_nodes(void); 2190 __private_extern__ void pf_purge_expired_states(u_int32_t); 2191 __private_extern__ void pf_unlink_state(struct pf_state *); 2192 __private_extern__ void pf_free_state(struct pf_state *); 2193 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2194 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2195 struct pf_rule *, struct pf_addr *, sa_family_t); 2196 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2197 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2198 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2199 u_int, int *); 2200 __private_extern__ void pf_print_state(struct pf_state *); 2201 __private_extern__ void pf_print_flags(u_int8_t); 2202 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2203 u_int8_t); 2204 2205 extern struct ifnet *sync_ifp; 2206 extern struct pf_rule pf_default_rule; 2207 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2208 u_int8_t); 2209 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2210 2211 struct ip_fw_args; 2212 2213 extern boolean_t is_nlc_enabled_glb; 2214 extern boolean_t pf_is_nlc_enabled(void); 2215 2216 #if INET 2217 __private_extern__ int pf_test(int, struct ifnet *, pbuf_t **, 2218 struct ether_header *, struct ip_fw_args *); 2219 __private_extern__ int pf_test_mbuf(int, struct ifnet *, struct mbuf **, 2220 struct ether_header *, struct ip_fw_args *); 2221 #endif /* INET */ 2222 2223 #if INET6 2224 __private_extern__ int pf_test6(int, struct ifnet *, pbuf_t **, 2225 struct ether_header *, struct ip_fw_args *); 2226 __private_extern__ int pf_test6_mbuf(int, struct ifnet *, struct mbuf **, 2227 struct ether_header *, struct ip_fw_args *); 2228 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2229 struct pf_addr *, struct pf_addr *, u_int8_t); 2230 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2231 #endif /* INET6 */ 2232 2233 __private_extern__ void *pf_lazy_makewritable(struct pf_pdesc *, 2234 pbuf_t *, int); 2235 __private_extern__ void *pf_pull_hdr(pbuf_t *, int, void *, int, 2236 u_short *, u_short *, sa_family_t); 2237 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2238 __private_extern__ int pflog_packet(struct pfi_kif *, pbuf_t *, 2239 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2240 struct pf_ruleset *, struct pf_pdesc *); 2241 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2242 struct pf_addr *, struct pf_addr *, sa_family_t); 2243 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2244 struct pf_addr *, sa_family_t); 2245 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2246 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2247 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2248 union pf_state_xport *); 2249 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2250 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2251 2252 __private_extern__ void pf_normalize_init(void); 2253 __private_extern__ int pf_normalize_isempty(void); 2254 __private_extern__ int pf_normalize_ip(pbuf_t *, int, struct pfi_kif *, 2255 u_short *, struct pf_pdesc *); 2256 __private_extern__ int pf_normalize_ip6(pbuf_t *, int, struct pfi_kif *, 2257 u_short *, struct pf_pdesc *); 2258 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, pbuf_t *, 2259 int, int, void *, struct pf_pdesc *); 2260 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2261 __private_extern__ int pf_normalize_tcp_init(pbuf_t *, int, 2262 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2263 struct pf_state_peer *); 2264 __private_extern__ int pf_normalize_tcp_stateful(pbuf_t *, int, 2265 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2266 struct pf_state_peer *, struct pf_state_peer *, int *); 2267 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2268 __private_extern__ void pf_purge_expired_fragments(void); 2269 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2270 struct pfi_kif *); 2271 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2272 struct pf_addr_wrap *); 2273 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2274 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2275 struct pf_state_key *); 2276 __private_extern__ void pfr_initialize(void); 2277 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2278 sa_family_t); 2279 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2280 sa_family_t, u_int64_t, int, int, int); 2281 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2282 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2283 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2284 struct pfi_dynaddr *); 2285 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2286 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2287 char *); 2288 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2289 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2290 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2291 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2292 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2293 int *, int); 2294 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2295 int *, int); 2296 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2297 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2298 int *, int); 2299 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2300 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2301 u_int64_t); 2302 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2303 int, int *, int); 2304 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2305 int, int *, int); 2306 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2307 int, int *, int *, int *, int *, int, u_int32_t); 2308 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2309 int *, int); 2310 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2311 int *, int); 2312 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2313 int, int *, int); 2314 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2315 int, int *, int); 2316 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2317 int); 2318 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2319 int); 2320 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2321 int *, int); 2322 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2323 int, int *, int *, u_int32_t, int); 2324 2325 extern struct pfi_kif *pfi_all; 2326 2327 __private_extern__ void pfi_initialize(void); 2328 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2329 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2330 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2331 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2332 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2333 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2334 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2335 sa_family_t); 2336 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2337 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2338 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2339 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2340 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2341 __private_extern__ int pfi_set_flags(const char *, int); 2342 __private_extern__ int pfi_clear_flags(const char *, int); 2343 2344 __private_extern__ u_int16_t pf_tagname2tag(char *); 2345 __private_extern__ void pf_tag2tagname(u_int16_t, char *); 2346 __private_extern__ void pf_tag_ref(u_int16_t); 2347 __private_extern__ void pf_tag_unref(u_int16_t); 2348 __private_extern__ int pf_tag_packet(pbuf_t *, struct pf_mtag *, 2349 int, unsigned int, struct pf_pdesc *); 2350 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2351 struct pf_rule **, struct pf_rule **, int *); 2352 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2353 struct pf_rule **, struct pf_rule **, int *); 2354 __private_extern__ u_int32_t pf_qname2qid(char *); 2355 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2356 __private_extern__ void pf_qid_unref(u_int32_t); 2357 2358 extern struct pf_status pf_status; 2359 extern struct pool pf_frent_pl, pf_frag_pl; 2360 2361 struct pf_pool_limit { 2362 void *pp; 2363 unsigned limit; 2364 }; 2365 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2366 2367 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2368 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2369 __private_extern__ int pf_ifaddr_hook(struct ifnet *); 2370 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2371 2372 /* 2373 * The following are defined with "private extern" storage class for 2374 * kernel, and "extern" for user-space. 2375 */ 2376 extern struct pf_anchor_global pf_anchors; 2377 extern struct pf_anchor pf_main_anchor; 2378 #define pf_main_ruleset pf_main_anchor.ruleset 2379 2380 extern int pf_is_enabled; 2381 extern int16_t pf_nat64_configured; 2382 #define PF_IS_ENABLED (pf_is_enabled != 0) 2383 extern u_int32_t pf_hash_seed; 2384 2385 /* these ruleset functions can be linked into userland programs (pfctl) */ 2386 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2387 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2388 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2389 const struct pf_ruleset *, const char *); 2390 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2391 const struct pf_rule *, struct pfioc_rule *); 2392 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2393 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2394 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2395 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2396 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2397 const char *, int, int *); 2398 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2399 __private_extern__ void pf_rs_initialize(void); 2400 2401 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2402 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2403 pbuf_t *, int, const struct tcphdr *); 2404 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2405 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2406 __private_extern__ void pf_osfp_flush(void); 2407 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2408 __private_extern__ void pf_osfp_initialize(void); 2409 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2410 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2411 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2412 __private_extern__ struct pf_mtag *pf_find_mtag_pbuf(pbuf_t *); 2413 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2414 __private_extern__ struct pf_mtag *pf_get_mtag_pbuf(pbuf_t *); 2415 #else /* !KERNEL */ 2416 extern struct pf_anchor_global pf_anchors; 2417 extern struct pf_anchor pf_main_anchor; 2418 #define pf_main_ruleset pf_main_anchor.ruleset 2419 2420 /* these ruleset functions can be linked into userland programs (pfctl) */ 2421 extern int pf_get_ruleset_number(u_int8_t); 2422 extern void pf_init_ruleset(struct pf_ruleset *); 2423 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2424 const char *); 2425 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2426 struct pfioc_rule *); 2427 extern void pf_anchor_remove(struct pf_rule *); 2428 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2429 extern struct pf_anchor *pf_find_anchor(const char *); 2430 extern struct pf_ruleset *pf_find_ruleset(const char *); 2431 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2432 const char *, int, int *); 2433 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2434 extern void pf_rs_initialize(void); 2435 #endif /* !KERNEL */ 2436 2437 #ifdef __cplusplus 2438 } 2439 #endif 2440 #endif /* PF || !KERNEL */ 2441 #endif /* PRIVATE */ 2442 #endif /* _NET_PFVAR_H_ */ 2443