1 /* 2 * Copyright (c) 2007-2021 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 #if SKYWALK 97 #include <netinet/in_pcb.h> 98 #include <skywalk/namespace/netns.h> 99 #endif 100 101 #if BYTE_ORDER == BIG_ENDIAN 102 #define htobe64(x) (x) 103 #else /* LITTLE ENDIAN */ 104 #define htobe64(x) __DARWIN_OSSwapInt64(x) 105 #endif /* LITTLE_ENDIAN */ 106 107 #define be64toh(x) htobe64(x) 108 109 extern lck_rw_t pf_perim_lock; 110 extern lck_mtx_t pf_lock; 111 112 struct pool { 113 struct zone *pool_zone; /* pointer to backend zone */ 114 const char *pool_name; /* name of pool */ 115 unsigned int pool_count; /* # of outstanding elements */ 116 unsigned int pool_hiwat; /* high watermark */ 117 unsigned int pool_limit; /* hard limit */ 118 unsigned int pool_fails; /* # of failed allocs due to limit */ 119 }; 120 121 #define PR_NOWAIT FALSE 122 #define PR_WAITOK TRUE 123 124 __private_extern__ void pool_init(struct pool *, size_t, unsigned int, 125 unsigned int, int, const char *, void *); 126 __private_extern__ void pool_destroy(struct pool *); 127 __private_extern__ void pool_sethiwat(struct pool *, int); 128 __private_extern__ void pool_sethardlimit(struct pool *, int, 129 const char *, int); 130 __private_extern__ void *pool_get(struct pool *, int); 131 __private_extern__ void pool_put(struct pool *, void *); 132 __private_extern__ u_int64_t pf_time_second(void); 133 __private_extern__ u_int64_t pf_calendar_time_second(void); 134 #endif /* KERNEL */ 135 136 union sockaddr_union { 137 struct sockaddr sa; 138 struct sockaddr_in sin; 139 struct sockaddr_in6 sin6; 140 }; 141 142 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 143 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 144 145 #define PF_MD5_DIGEST_LENGTH 16 146 #ifdef MD5_DIGEST_LENGTH 147 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH 148 #error 149 #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */ 150 #endif /* MD5_DIGEST_LENGTH */ 151 152 #ifdef KERNEL 153 struct ip; 154 struct ip6_hdr; 155 struct tcphdr; 156 struct pf_grev1_hdr; 157 struct pf_esp_hdr; 158 #endif /* KERNEL */ 159 160 #define PF_GRE_PPTP_VARIANT 0x01 161 162 enum { PF_INOUT, PF_IN, PF_OUT }; 163 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 164 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, 165 PF_DUMMYNET, PF_NODUMMYNET, PF_NAT64, PF_NONAT64 }; 166 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 167 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET, 168 PF_RULESET_MAX }; 169 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 170 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 171 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 172 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 173 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 174 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 175 enum { PF_GET_NONE, PF_GET_CLR_CNTR }; 176 177 /* 178 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 179 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 180 */ 181 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 182 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 183 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 184 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 185 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, 186 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, 187 PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 188 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 189 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 190 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED }; 191 192 /* PFTM default values */ 193 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 194 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 195 #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */ 196 #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */ 197 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 198 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 199 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 200 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 201 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 202 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 203 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 204 #define PFTM_GREv1_FIRST_PACKET_VAL 120 205 #define PFTM_GREv1_INITIATING_VAL 30 206 #define PFTM_GREv1_ESTABLISHED_VAL 1800 207 #define PFTM_ESP_FIRST_PACKET_VAL 120 208 #define PFTM_ESP_INITIATING_VAL 30 209 #define PFTM_ESP_ESTABLISHED_VAL 900 210 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 211 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 212 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 213 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 214 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 215 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 216 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 217 218 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 219 enum { PF_LIMIT_STATES, 220 PF_LIMIT_APP_STATES, 221 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, 222 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; 223 #define PF_POOL_IDMASK 0x0f 224 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 225 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 226 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 227 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, 228 PF_ADDR_RANGE }; 229 #define PF_POOL_TYPEMASK 0x0f 230 #define PF_POOL_STICKYADDR 0x20 231 #define PF_WSCALE_FLAG 0x80 232 #define PF_WSCALE_MASK 0x0f 233 234 #define PF_LOG 0x01 235 #define PF_LOG_ALL 0x02 236 #define PF_LOG_SOCKET_LOOKUP 0x04 237 238 struct pf_addr { 239 union { 240 struct in_addr _v4addr; 241 struct in6_addr _v6addr; 242 u_int8_t _addr8[16]; 243 u_int16_t _addr16[8]; 244 u_int32_t _addr32[4]; 245 } pfa; /* 128-bit address */ 246 #define v4addr pfa._v4addr 247 #define v6addr pfa._v6addr 248 #define addr8 pfa._addr8 249 #define addr16 pfa._addr16 250 #define addr32 pfa._addr32 251 }; 252 253 #define PF_TABLE_NAME_SIZE 32 254 255 #define PFI_AFLAG_NETWORK 0x01 256 #define PFI_AFLAG_BROADCAST 0x02 257 #define PFI_AFLAG_PEER 0x04 258 #define PFI_AFLAG_MODEMASK 0x07 259 #define PFI_AFLAG_NOALIAS 0x08 260 261 #ifndef RTLABEL_LEN 262 #define RTLABEL_LEN 32 263 #endif 264 265 struct pf_addr_wrap { 266 union { 267 struct { 268 struct pf_addr addr; 269 struct pf_addr mask; 270 } a; 271 char ifname[IFNAMSIZ]; 272 char tblname[PF_TABLE_NAME_SIZE]; 273 char rtlabelname[RTLABEL_LEN]; 274 u_int32_t rtlabel; 275 } v; 276 union { 277 #ifdef KERNEL 278 struct pfi_dynaddr *dyn __attribute__((aligned(8))); 279 struct pfr_ktable *tbl __attribute__((aligned(8))); 280 #else /* !KERNEL */ 281 void *dyn __attribute__((aligned(8))); 282 void *tbl __attribute__((aligned(8))); 283 #endif /* !KERNEL */ 284 int dyncnt __attribute__((aligned(8))); 285 int tblcnt __attribute__((aligned(8))); 286 } p __attribute__((aligned(8))); 287 u_int8_t type; /* PF_ADDR_* */ 288 u_int8_t iflags; /* PFI_AFLAG_* */ 289 }; 290 291 struct pf_port_range { 292 u_int16_t port[2]; 293 u_int8_t op; 294 }; 295 296 union pf_rule_xport { 297 struct pf_port_range range; 298 u_int16_t call_id; 299 u_int32_t spi; 300 }; 301 302 #ifdef KERNEL 303 struct pfi_dynaddr { 304 TAILQ_ENTRY(pfi_dynaddr) entry; 305 struct pf_addr pfid_addr4; 306 struct pf_addr pfid_mask4; 307 struct pf_addr pfid_addr6; 308 struct pf_addr pfid_mask6; 309 struct pfr_ktable *pfid_kt; 310 struct pfi_kif *pfid_kif; 311 void *pfid_hook_cookie; 312 uint8_t pfid_net; /* mask or 128 */ 313 int pfid_acnt4; /* address count IPv4 */ 314 int pfid_acnt6; /* address count IPv6 */ 315 sa_family_t pfid_af; /* rule af */ 316 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 317 }; 318 319 /* 320 * Address manipulation macros 321 */ 322 323 #if INET 324 #endif /* INET */ 325 326 #if !INET 327 #define PF_INET6_ONLY 328 #endif /* ! INET */ 329 330 #if INET 331 #define PF_INET_INET6 332 #endif /* INET */ 333 334 #else /* !KERNEL */ 335 336 #define PF_INET_INET6 337 338 #endif /* !KERNEL */ 339 340 /* Both IPv4 and IPv6 */ 341 #ifdef PF_INET_INET6 342 343 #define PF_AEQ(a, b, c) \ 344 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 345 (c == AF_INET6 && ((a)->addr32[3] == (b)->addr32[3] && \ 346 (a)->addr32[2] == (b)->addr32[2] && \ 347 (a)->addr32[1] == (b)->addr32[1] && \ 348 (a)->addr32[0] == (b)->addr32[0]))) \ 349 350 #define PF_ANEQ(a, b, c) \ 351 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 352 (c == AF_INET6 && ((a)->addr32[3] != (b)->addr32[3] || \ 353 (a)->addr32[2] != (b)->addr32[2] || \ 354 (a)->addr32[1] != (b)->addr32[1] || \ 355 (a)->addr32[0] != (b)->addr32[0]))) \ 356 357 #define PF_ALEQ(a, b, c) \ 358 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \ 359 (c == AF_INET6 && ((a)->addr32[3] <= (b)->addr32[3] && \ 360 (a)->addr32[2] <= (b)->addr32[2] && \ 361 (a)->addr32[1] <= (b)->addr32[1] && \ 362 (a)->addr32[0] <= (b)->addr32[0]))) \ 363 364 #define PF_AZERO(a, c) \ 365 ((c == AF_INET && !(a)->addr32[0]) || \ 366 (c == AF_INET6 && (!(a)->addr32[0] && !(a)->addr32[1] && \ 367 !(a)->addr32[2] && !(a)->addr32[3]))) \ 368 369 #define PF_MATCHA(n, a, m, b, f) \ 370 pf_match_addr(n, a, m, b, f) 371 372 #define PF_ACPY(a, b, f) \ 373 pf_addrcpy(a, b, f) 374 375 #define PF_AINC(a, f) \ 376 pf_addr_inc(a, f) 377 378 #define PF_POOLMASK(a, b, c, d, f) \ 379 pf_poolmask(a, b, c, d, f) 380 381 #else 382 383 /* Just IPv6 */ 384 385 #ifdef PF_INET6_ONLY 386 387 #define PF_AEQ(a, b, c) \ 388 ((a)->addr32[3] == (b)->addr32[3] && \ 389 (a)->addr32[2] == (b)->addr32[2] && \ 390 (a)->addr32[1] == (b)->addr32[1] && \ 391 (a)->addr32[0] == (b)->addr32[0]) \ 392 393 #define PF_ANEQ(a, b, c) \ 394 ((a)->addr32[3] != (b)->addr32[3] || \ 395 (a)->addr32[2] != (b)->addr32[2] || \ 396 (a)->addr32[1] != (b)->addr32[1] || \ 397 (a)->addr32[0] != (b)->addr32[0]) \ 398 399 #define PF_ALEQ(a, b, c) \ 400 ((a)->addr32[3] <= (b)->addr32[3] && \ 401 (a)->addr32[2] <= (b)->addr32[2] && \ 402 (a)->addr32[1] <= (b)->addr32[1] && \ 403 (a)->addr32[0] <= (b)->addr32[0]) \ 404 405 #define PF_AZERO(a, c) \ 406 (!(a)->addr32[0] && \ 407 !(a)->addr32[1] && \ 408 !(a)->addr32[2] && \ 409 !(a)->addr32[3]) \ 410 411 #define PF_MATCHA(n, a, m, b, f) \ 412 pf_match_addr(n, a, m, b, f) 413 414 #define PF_ACPY(a, b, f) \ 415 pf_addrcpy(a, b, f) 416 417 #define PF_AINC(a, f) \ 418 pf_addr_inc(a, f) 419 420 #define PF_POOLMASK(a, b, c, d, f) \ 421 pf_poolmask(a, b, c, d, f) 422 423 #else 424 425 /* Just IPv4 */ 426 #ifdef PF_INET_ONLY 427 428 #define PF_AEQ(a, b, c) \ 429 ((a)->addr32[0] == (b)->addr32[0]) 430 431 #define PF_ANEQ(a, b, c) \ 432 ((a)->addr32[0] != (b)->addr32[0]) 433 434 #define PF_ALEQ(a, b, c) \ 435 ((a)->addr32[0] <= (b)->addr32[0]) 436 437 #define PF_AZERO(a, c) \ 438 (!(a)->addr32[0]) 439 440 #define PF_MATCHA(n, a, m, b, f) \ 441 pf_match_addr(n, a, m, b, f) 442 443 #define PF_ACPY(a, b, f) \ 444 (a)->v4.s_addr = (b)->v4.s_addr 445 446 #define PF_AINC(a, f) \ 447 do { \ 448 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 449 } while (0) 450 451 #define PF_POOLMASK(a, b, c, d, f) \ 452 do { \ 453 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 454 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ 455 } while (0) 456 457 #endif /* PF_INET_ONLY */ 458 #endif /* PF_INET6_ONLY */ 459 #endif /* PF_INET_INET6 */ 460 461 #ifdef KERNEL 462 #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ 463 ( \ 464 (((aw)->type == PF_ADDR_NOROUTE && \ 465 pf_routable((x), (af), NULL)) || \ 466 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ 467 pf_routable((x), (af), (ifp))) || \ 468 ((aw)->type == PF_ADDR_RTLABEL && \ 469 !pf_rtlabel_match((x), (af), (aw))) || \ 470 ((aw)->type == PF_ADDR_TABLE && \ 471 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 472 ((aw)->type == PF_ADDR_DYNIFTL && \ 473 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 474 ((aw)->type == PF_ADDR_RANGE && \ 475 !pf_match_addr_range(&(aw)->v.a.addr, \ 476 &(aw)->v.a.mask, (x), (af))) || \ 477 ((aw)->type == PF_ADDR_ADDRMASK && \ 478 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 479 !PF_MATCHA(0, &(aw)->v.a.addr, \ 480 &(aw)->v.a.mask, (x), (af))))) != \ 481 (neg) \ 482 ) 483 #endif /* KERNEL */ 484 485 struct pf_rule_uid { 486 uid_t uid[2]; 487 u_int8_t op; 488 u_int8_t _pad[3]; 489 }; 490 491 struct pf_rule_gid { 492 uid_t gid[2]; 493 u_int8_t op; 494 u_int8_t _pad[3]; 495 }; 496 497 struct pf_rule_addr { 498 struct pf_addr_wrap addr; 499 union pf_rule_xport xport; 500 u_int8_t neg; 501 }; 502 503 struct pf_pooladdr { 504 struct pf_addr_wrap addr; 505 TAILQ_ENTRY(pf_pooladdr) entries; 506 #if !defined(__LP64__) 507 u_int32_t _pad[2]; 508 #endif /* !__LP64__ */ 509 char ifname[IFNAMSIZ]; 510 #ifdef KERNEL 511 struct pfi_kif *kif __attribute__((aligned(8))); 512 #else /* !KERNEL */ 513 void *kif __attribute__((aligned(8))); 514 #endif /* !KERNEL */ 515 }; 516 517 TAILQ_HEAD(pf_palist, pf_pooladdr); 518 519 struct pf_poolhashkey { 520 union { 521 u_int8_t key8[16]; 522 u_int16_t key16[8]; 523 u_int32_t key32[4]; 524 } pfk; /* 128-bit hash key */ 525 #define key8 pfk.key8 526 #define key16 pfk.key16 527 #define key32 pfk.key32 528 }; 529 530 struct pf_pool { 531 struct pf_palist list; 532 #if !defined(__LP64__) 533 u_int32_t _pad[2]; 534 #endif /* !__LP64__ */ 535 #ifdef KERNEL 536 struct pf_pooladdr *cur __attribute__((aligned(8))); 537 #else /* !KERNEL */ 538 void *cur __attribute__((aligned(8))); 539 #endif /* !KERNEL */ 540 struct pf_poolhashkey key __attribute__((aligned(8))); 541 struct pf_addr counter; 542 int tblidx; 543 u_int16_t proxy_port[2]; 544 u_int8_t port_op; 545 u_int8_t opts; 546 sa_family_t af; 547 }; 548 549 550 /* A packed Operating System description for fingerprinting */ 551 typedef u_int32_t pf_osfp_t; 552 #define PF_OSFP_ANY ((pf_osfp_t)0) 553 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 554 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 555 556 struct pf_osfp_entry { 557 SLIST_ENTRY(pf_osfp_entry) fp_entry; 558 #if !defined(__LP64__) 559 u_int32_t _pad; 560 #endif /* !__LP64__ */ 561 pf_osfp_t fp_os; 562 int fp_enflags; 563 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 564 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 565 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 566 #define PF_OSFP_LEN 32 567 char fp_class_nm[PF_OSFP_LEN]; 568 char fp_version_nm[PF_OSFP_LEN]; 569 char fp_subtype_nm[PF_OSFP_LEN]; 570 }; 571 #define PF_OSFP_ENTRY_EQ(a, b) \ 572 ((a)->fp_os == (b)->fp_os && \ 573 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 574 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 575 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 576 577 /* handle pf_osfp_t packing */ 578 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 579 #define _FP_UNUSED_BITS 1 580 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 581 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 582 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 583 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 584 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 585 ((1 << _FP_CLASS_BITS) - 1); \ 586 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 587 ((1 << _FP_VERSION_BITS) - 1);\ 588 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 589 } while (0) 590 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 591 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 592 + _FP_SUBTYPE_BITS); \ 593 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 594 _FP_SUBTYPE_BITS; \ 595 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 596 } while (0) 597 598 /* the fingerprint of an OSes TCP SYN packet */ 599 typedef u_int64_t pf_tcpopts_t; 600 struct pf_os_fingerprint { 601 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 602 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 603 u_int16_t fp_wsize; /* TCP window size */ 604 u_int16_t fp_psize; /* ip->ip_len */ 605 u_int16_t fp_mss; /* TCP MSS */ 606 u_int16_t fp_flags; 607 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 608 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 609 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 610 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 611 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 612 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 613 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 614 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 615 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 616 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 617 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 618 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 619 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 620 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 621 #define PF_OSFP_INET6 0x4000 /* IPv6 */ 622 u_int8_t fp_optcnt; /* TCP option count */ 623 u_int8_t fp_wscale; /* TCP window scaling */ 624 u_int8_t fp_ttl; /* IPv4 TTL */ 625 #define PF_OSFP_MAXTTL_OFFSET 40 626 /* TCP options packing */ 627 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 628 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 629 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 630 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 631 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 632 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 633 #define PF_OSFP_MAX_OPTS \ 634 ((sizeof(pf_tcpopts_t) * 8) \ 635 / PF_OSFP_TCPOPT_BITS) 636 637 SLIST_ENTRY(pf_os_fingerprint) fp_next; 638 }; 639 640 struct pf_osfp_ioctl { 641 struct pf_osfp_entry fp_os; 642 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 643 u_int16_t fp_wsize; /* TCP window size */ 644 u_int16_t fp_psize; /* ip->ip_len */ 645 u_int16_t fp_mss; /* TCP MSS */ 646 u_int16_t fp_flags; 647 u_int8_t fp_optcnt; /* TCP option count */ 648 u_int8_t fp_wscale; /* TCP window scaling */ 649 u_int8_t fp_ttl; /* IPv4 TTL */ 650 651 int fp_getnum; /* DIOCOSFPGET number */ 652 }; 653 654 655 union pf_rule_ptr { 656 struct pf_rule *ptr __attribute__((aligned(8))); 657 u_int32_t nr __attribute__((aligned(8))); 658 } __attribute__((aligned(8))); 659 660 #define PF_ANCHOR_NAME_SIZE 64 661 662 struct pf_rule { 663 struct pf_rule_addr src; 664 struct pf_rule_addr dst; 665 #define PF_SKIP_IFP 0 666 #define PF_SKIP_DIR 1 667 #define PF_SKIP_AF 2 668 #define PF_SKIP_PROTO 3 669 #define PF_SKIP_SRC_ADDR 4 670 #define PF_SKIP_SRC_PORT 5 671 #define PF_SKIP_DST_ADDR 6 672 #define PF_SKIP_DST_PORT 7 673 #define PF_SKIP_COUNT 8 674 union pf_rule_ptr skip[PF_SKIP_COUNT]; 675 #define PF_RULE_LABEL_SIZE 64 676 char label[PF_RULE_LABEL_SIZE]; 677 #define PF_QNAME_SIZE 64 678 char ifname[IFNAMSIZ]; 679 char qname[PF_QNAME_SIZE]; 680 char pqname[PF_QNAME_SIZE]; 681 #define PF_TAG_NAME_SIZE 64 682 char tagname[PF_TAG_NAME_SIZE]; 683 char match_tagname[PF_TAG_NAME_SIZE]; 684 685 char overload_tblname[PF_TABLE_NAME_SIZE]; 686 687 TAILQ_ENTRY(pf_rule) entries; 688 #if !defined(__LP64__) 689 u_int32_t _pad[2]; 690 #endif /* !__LP64__ */ 691 struct pf_pool rpool; 692 693 u_int64_t evaluations; 694 u_int64_t packets[2]; 695 u_int64_t bytes[2]; 696 697 u_int64_t ticket; 698 #define PF_OWNER_NAME_SIZE 64 699 char owner[PF_OWNER_NAME_SIZE]; 700 u_int32_t priority; 701 702 #ifdef KERNEL 703 struct pfi_kif *kif __attribute__((aligned(8))); 704 #else /* !KERNEL */ 705 void *kif __attribute__((aligned(8))); 706 #endif /* !KERNEL */ 707 struct pf_anchor *anchor __attribute__((aligned(8))); 708 #ifdef KERNEL 709 struct pfr_ktable *overload_tbl __attribute__((aligned(8))); 710 #else /* !KERNEL */ 711 void *overload_tbl __attribute__((aligned(8))); 712 #endif /* !KERNEL */ 713 714 pf_osfp_t os_fingerprint __attribute__((aligned(8))); 715 716 unsigned int rtableid; 717 u_int32_t timeout[PFTM_MAX]; 718 u_int32_t states; 719 u_int32_t max_states; 720 u_int32_t src_nodes; 721 u_int32_t max_src_nodes; 722 u_int32_t max_src_states; 723 u_int32_t max_src_conn; 724 struct { 725 u_int32_t limit; 726 u_int32_t seconds; 727 } max_src_conn_rate; 728 u_int32_t qid; 729 u_int32_t pqid; 730 u_int32_t rt_listid; 731 u_int32_t nr; 732 u_int32_t prob; 733 uid_t cuid; 734 pid_t cpid; 735 736 u_int16_t return_icmp; 737 u_int16_t return_icmp6; 738 u_int16_t max_mss; 739 u_int16_t tag; 740 u_int16_t match_tag; 741 742 struct pf_rule_uid uid; 743 struct pf_rule_gid gid; 744 745 u_int32_t rule_flag; 746 u_int8_t action; 747 u_int8_t direction; 748 u_int8_t log; 749 u_int8_t logif; 750 u_int8_t quick; 751 u_int8_t ifnot; 752 u_int8_t match_tag_not; 753 u_int8_t natpass; 754 755 #define PF_STATE_NORMAL 0x1 756 #define PF_STATE_MODULATE 0x2 757 #define PF_STATE_SYNPROXY 0x3 758 u_int8_t keep_state; 759 sa_family_t af; 760 u_int8_t proto; 761 u_int8_t type; 762 u_int8_t code; 763 u_int8_t flags; 764 u_int8_t flagset; 765 u_int8_t min_ttl; 766 u_int8_t allow_opts; 767 u_int8_t rt; 768 u_int8_t return_ttl; 769 770 /* service class categories */ 771 #define SCIDX_MASK 0x0f 772 #define SC_BE 0x10 773 #define SC_BK_SYS 0x11 774 #define SC_BK 0x12 775 #define SC_RD 0x13 776 #define SC_OAM 0x14 777 #define SC_AV 0x15 778 #define SC_RV 0x16 779 #define SC_VI 0x17 780 #define SC_SIG 0x17 781 #define SC_VO 0x18 782 #define SC_CTL 0x19 783 784 /* diffserve code points */ 785 #define DSCP_MASK 0xfc 786 #define DSCP_CUMASK 0x03 787 #define DSCP_EF 0xb8 788 #define DSCP_AF11 0x28 789 #define DSCP_AF12 0x30 790 #define DSCP_AF13 0x38 791 #define DSCP_AF21 0x48 792 #define DSCP_AF22 0x50 793 #define DSCP_AF23 0x58 794 #define DSCP_AF31 0x68 795 #define DSCP_AF32 0x70 796 #define DSCP_AF33 0x78 797 #define DSCP_AF41 0x88 798 #define DSCP_AF42 0x90 799 #define DSCP_AF43 0x98 800 #define AF_CLASSMASK 0xe0 801 #define AF_DROPPRECMASK 0x18 802 u_int8_t tos; 803 u_int8_t anchor_relative; 804 u_int8_t anchor_wildcard; 805 806 #define PF_FLUSH 0x01 807 #define PF_FLUSH_GLOBAL 0x02 808 u_int8_t flush; 809 810 u_int8_t proto_variant; 811 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ 812 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ 813 u_int32_t dnpipe; 814 u_int32_t dntype; 815 }; 816 817 /* pf device identifiers */ 818 #define PFDEV_PF 0 819 #define PFDEV_PFM 1 820 #define PFDEV_MAX 2 821 822 /* rule flags */ 823 #define PFRULE_DROP 0x0000 824 #define PFRULE_RETURNRST 0x0001 825 #define PFRULE_FRAGMENT 0x0002 826 #define PFRULE_RETURNICMP 0x0004 827 #define PFRULE_RETURN 0x0008 828 #define PFRULE_NOSYNC 0x0010 829 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 830 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 831 832 /* scrub flags */ 833 #define PFRULE_NODF 0x0100 834 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 835 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 836 #define PFRULE_RANDOMID 0x0800 837 #define PFRULE_REASSEMBLE_TCP 0x1000 838 839 /* rule flags for TOS/DSCP/service class differentiation */ 840 #define PFRULE_TOS 0x2000 841 #define PFRULE_DSCP 0x4000 842 #define PFRULE_SC 0x8000 843 844 /* rule flags again */ 845 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 846 #define PFRULE_PFM 0x00020000 /* created by pfm device */ 847 848 #define PFSTATE_HIWAT 10000 /* default state table size */ 849 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ 850 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ 851 852 #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ 853 854 /* PF reserved special purpose tags */ 855 #define PF_TAG_NAME_SYSTEM_SERVICE "com.apple.pf.system_service_tag" 856 #define PF_TAG_NAME_STACK_DROP "com.apple.pf.stack_drop_tag" 857 858 enum pf_extmap { 859 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ 860 PF_EXTMAP_AD, /* Address-dependent mapping */ 861 PF_EXTMAP_EI /* Endpoint-independent mapping */ 862 }; 863 864 enum pf_extfilter { 865 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ 866 PF_EXTFILTER_AD, /* Address-dependent filtering */ 867 PF_EXTFILTER_EI /* Endpoint-independent filtering */ 868 }; 869 870 struct pf_threshold { 871 u_int32_t limit; 872 #define PF_THRESHOLD_MULT 1000 873 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 874 u_int32_t seconds; 875 u_int32_t count; 876 u_int32_t last; 877 }; 878 879 struct pf_src_node { 880 RB_ENTRY(pf_src_node) entry; 881 struct pf_addr addr; 882 struct pf_addr raddr; 883 union pf_rule_ptr rule; 884 #ifdef KERNEL 885 struct pfi_kif *kif; 886 #else /* !KERNEL */ 887 void *kif; 888 #endif /* !KERNEL */ 889 u_int64_t bytes[2]; 890 u_int64_t packets[2]; 891 u_int32_t states; 892 u_int32_t conn; 893 struct pf_threshold conn_rate; 894 u_int64_t creation; 895 u_int64_t expire; 896 sa_family_t af; 897 u_int8_t ruletype; 898 }; 899 900 #define PFSNODE_HIWAT 10000 /* default source node table size */ 901 902 #ifdef KERNEL 903 struct pf_state_scrub { 904 struct timeval pfss_last; /* time received last packet */ 905 u_int32_t pfss_tsecr; /* last echoed timestamp */ 906 u_int32_t pfss_tsval; /* largest timestamp */ 907 u_int32_t pfss_tsval0; /* original timestamp */ 908 u_int16_t pfss_flags; 909 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 910 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 911 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 912 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 913 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 914 u_int8_t pfss_ttl; /* stashed TTL */ 915 u_int8_t pad; 916 u_int32_t pfss_ts_mod; /* timestamp modulation */ 917 }; 918 #endif /* KERNEL */ 919 920 union pf_state_xport { 921 u_int16_t port; 922 u_int16_t call_id; 923 u_int32_t spi; 924 }; 925 926 struct pf_state_host { 927 struct pf_addr addr; 928 union pf_state_xport xport; 929 }; 930 931 #ifdef KERNEL 932 struct pf_state_peer { 933 u_int32_t seqlo; /* Max sequence number sent */ 934 u_int32_t seqhi; /* Max the other end ACKd + win */ 935 u_int32_t seqdiff; /* Sequence number modulator */ 936 u_int16_t max_win; /* largest window (pre scaling) */ 937 u_int8_t state; /* active state level */ 938 u_int8_t wscale; /* window scaling factor */ 939 u_int16_t mss; /* Maximum segment size option */ 940 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ 941 struct pf_state_scrub *scrub; /* state is scrubbed */ 942 u_int8_t pad[3]; 943 }; 944 945 TAILQ_HEAD(pf_state_queue, pf_state); 946 947 struct pf_state; 948 struct pf_pdesc; 949 struct pf_app_state; 950 951 typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, 952 struct pfi_kif *); 953 954 typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); 955 956 struct pf_pptp_state { 957 struct pf_state *grev1_state; 958 }; 959 960 struct pf_grev1_state { 961 struct pf_state *pptp_state; 962 }; 963 964 struct pf_ike_state { 965 u_int64_t cookie; 966 }; 967 968 struct pf_app_state { 969 pf_app_handler handler; 970 pf_app_compare compare_lan_ext; 971 pf_app_compare compare_ext_gwy; 972 union { 973 struct pf_pptp_state pptp; 974 struct pf_grev1_state grev1; 975 struct pf_ike_state ike; 976 } u; 977 }; 978 979 /* keep synced with struct pf_state, used in RB_FIND */ 980 struct pf_state_key_cmp { 981 struct pf_state_host lan; 982 struct pf_state_host gwy; 983 struct pf_state_host ext_lan; 984 struct pf_state_host ext_gwy; 985 sa_family_t af_lan; 986 sa_family_t af_gwy; 987 u_int8_t proto; 988 u_int8_t direction; 989 u_int8_t proto_variant; 990 struct pf_app_state *app_state; 991 }; 992 993 TAILQ_HEAD(pf_statelist, pf_state); 994 995 struct pf_state_key { 996 struct pf_state_host lan; 997 struct pf_state_host gwy; 998 struct pf_state_host ext_lan; 999 struct pf_state_host ext_gwy; 1000 sa_family_t af_lan; 1001 sa_family_t af_gwy; 1002 u_int8_t proto; 1003 u_int8_t direction; 1004 u_int8_t proto_variant; 1005 struct pf_app_state *app_state; 1006 u_int32_t flowsrc; 1007 u_int32_t flowhash; 1008 1009 RB_ENTRY(pf_state_key) entry_lan_ext; 1010 RB_ENTRY(pf_state_key) entry_ext_gwy; 1011 struct pf_statelist states; 1012 u_int32_t refcnt; 1013 }; 1014 1015 1016 /* keep synced with struct pf_state, used in RB_FIND */ 1017 struct pf_state_cmp { 1018 u_int64_t id; 1019 u_int32_t creatorid; 1020 u_int32_t pad; 1021 }; 1022 1023 /* flowhash key (12-bytes multiple for performance) */ 1024 struct pf_flowhash_key { 1025 struct pf_state_host ap1; /* address+port blob 1 */ 1026 struct pf_state_host ap2; /* address+port blob 2 */ 1027 u_int32_t af; 1028 u_int32_t proto; 1029 }; 1030 #endif /* KERNEL */ 1031 1032 struct hook_desc; 1033 TAILQ_HEAD(hook_desc_head, hook_desc); 1034 1035 #ifdef KERNEL 1036 struct pf_state { 1037 u_int64_t id; 1038 u_int32_t creatorid; 1039 u_int32_t pad; 1040 1041 TAILQ_ENTRY(pf_state) entry_list; 1042 TAILQ_ENTRY(pf_state) next; 1043 RB_ENTRY(pf_state) entry_id; 1044 struct pf_state_peer src; 1045 struct pf_state_peer dst; 1046 union pf_rule_ptr rule; 1047 union pf_rule_ptr anchor; 1048 union pf_rule_ptr nat_rule; 1049 struct pf_addr rt_addr; 1050 struct hook_desc_head unlink_hooks; 1051 struct pf_state_key *state_key; 1052 struct pfi_kif *kif; 1053 struct pfi_kif *rt_kif; 1054 struct pf_src_node *src_node; 1055 struct pf_src_node *nat_src_node; 1056 u_int64_t packets[2]; 1057 u_int64_t bytes[2]; 1058 u_int64_t creation; 1059 u_int64_t expire; 1060 u_int64_t pfsync_time; 1061 u_int16_t tag; 1062 u_int8_t log; 1063 u_int8_t allow_opts; 1064 u_int8_t timeout; 1065 u_int8_t sync_flags; 1066 #if SKYWALK 1067 netns_token nstoken; 1068 #endif 1069 }; 1070 #endif /* KERNEL */ 1071 1072 #define PFSTATE_NOSYNC 0x01 1073 #define PFSTATE_FROMSYNC 0x02 1074 #define PFSTATE_STALE 0x04 1075 1076 #define __packed __attribute__((__packed__)) 1077 1078 /* 1079 * Unified state structures for pulling states out of the kernel 1080 * used by pfsync(4) and the pf(4) ioctl. 1081 */ 1082 struct pfsync_state_scrub { 1083 u_int16_t pfss_flags; 1084 u_int8_t pfss_ttl; /* stashed TTL */ 1085 #define PFSYNC_SCRUB_FLAG_VALID 0x01 1086 u_int8_t scrub_flag; 1087 u_int32_t pfss_ts_mod; /* timestamp modulation */ 1088 } __packed; 1089 1090 struct pfsync_state_host { 1091 struct pf_addr addr; 1092 union pf_state_xport xport; 1093 u_int16_t pad[2]; 1094 } __packed; 1095 1096 struct pfsync_state_peer { 1097 struct pfsync_state_scrub scrub; /* state is scrubbed */ 1098 u_int32_t seqlo; /* Max sequence number sent */ 1099 u_int32_t seqhi; /* Max the other end ACKd + win */ 1100 u_int32_t seqdiff; /* Sequence number modulator */ 1101 u_int16_t max_win; /* largest window (pre scaling) */ 1102 u_int16_t mss; /* Maximum segment size option */ 1103 u_int8_t state; /* active state level */ 1104 u_int8_t wscale; /* window scaling factor */ 1105 u_int8_t pad[6]; 1106 } __packed; 1107 1108 struct pfsync_state { 1109 u_int32_t id[2]; 1110 char ifname[IFNAMSIZ]; 1111 struct pfsync_state_host lan; 1112 struct pfsync_state_host gwy; 1113 struct pfsync_state_host ext_lan; 1114 struct pfsync_state_host ext_gwy; 1115 struct pfsync_state_peer src; 1116 struct pfsync_state_peer dst; 1117 struct pf_addr rt_addr; 1118 struct hook_desc_head unlink_hooks; 1119 #if !defined(__LP64__) 1120 u_int32_t _pad[2]; 1121 #endif /* !__LP64__ */ 1122 u_int32_t rule; 1123 u_int32_t anchor; 1124 u_int32_t nat_rule; 1125 u_int64_t creation; 1126 u_int64_t expire; 1127 u_int32_t packets[2][2]; 1128 u_int32_t bytes[2][2]; 1129 u_int32_t creatorid; 1130 u_int16_t tag; 1131 sa_family_t af_lan; 1132 sa_family_t af_gwy; 1133 u_int8_t proto; 1134 u_int8_t direction; 1135 u_int8_t log; 1136 u_int8_t allow_opts; 1137 u_int8_t timeout; 1138 u_int8_t sync_flags; 1139 u_int8_t updates; 1140 u_int8_t proto_variant; 1141 u_int8_t __pad; 1142 u_int32_t flowhash; 1143 } __packed; 1144 1145 #define PFSYNC_FLAG_COMPRESS 0x01 1146 #define PFSYNC_FLAG_STALE 0x02 1147 #define PFSYNC_FLAG_SRCNODE 0x04 1148 #define PFSYNC_FLAG_NATSRCNODE 0x08 1149 1150 #ifdef KERNEL 1151 /* for copies to/from userland via pf_ioctl() */ 1152 #define pf_state_peer_to_pfsync(s, d) do { \ 1153 (d)->seqlo = (s)->seqlo; \ 1154 (d)->seqhi = (s)->seqhi; \ 1155 (d)->seqdiff = (s)->seqdiff; \ 1156 (d)->max_win = (s)->max_win; \ 1157 (d)->mss = (s)->mss; \ 1158 (d)->state = (s)->state; \ 1159 (d)->wscale = (s)->wscale; \ 1160 if ((s)->scrub) { \ 1161 (d)->scrub.pfss_flags = \ 1162 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ 1163 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ 1164 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ 1165 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ 1166 } \ 1167 } while (0) 1168 1169 #define pf_state_peer_from_pfsync(s, d) do { \ 1170 (d)->seqlo = (s)->seqlo; \ 1171 (d)->seqhi = (s)->seqhi; \ 1172 (d)->seqdiff = (s)->seqdiff; \ 1173 (d)->max_win = (s)->max_win; \ 1174 (d)->mss = ntohs((s)->mss); \ 1175 (d)->state = (s)->state; \ 1176 (d)->wscale = (s)->wscale; \ 1177 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ 1178 (d)->scrub != NULL) { \ 1179 (d)->scrub->pfss_flags = \ 1180 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ 1181 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ 1182 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ 1183 } \ 1184 } while (0) 1185 #endif /* KERNEL */ 1186 1187 #define pf_state_counter_to_pfsync(s, d) do { \ 1188 d[0] = (s>>32)&0xffffffff; \ 1189 d[1] = s&0xffffffff; \ 1190 } while (0) 1191 1192 #define pf_state_counter_from_pfsync(s) \ 1193 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) 1194 1195 1196 1197 TAILQ_HEAD(pf_rulequeue, pf_rule); 1198 1199 struct pf_anchor; 1200 1201 struct pf_ruleset { 1202 struct { 1203 struct pf_rulequeue queues[2]; 1204 struct { 1205 struct pf_rulequeue *ptr; 1206 struct pf_rule **ptr_array; 1207 u_int32_t rcount; 1208 u_int32_t rsize; 1209 u_int32_t ticket; 1210 int open; 1211 } active, inactive; 1212 } rules[PF_RULESET_MAX]; 1213 struct pf_anchor *anchor; 1214 u_int32_t tticket; 1215 int tables; 1216 int topen; 1217 }; 1218 1219 RB_HEAD(pf_anchor_global, pf_anchor); 1220 RB_HEAD(pf_anchor_node, pf_anchor); 1221 struct pf_anchor { 1222 RB_ENTRY(pf_anchor) entry_global; 1223 RB_ENTRY(pf_anchor) entry_node; 1224 struct pf_anchor *parent; 1225 struct pf_anchor_node children; 1226 char name[PF_ANCHOR_NAME_SIZE]; 1227 char path[MAXPATHLEN]; 1228 struct pf_ruleset ruleset; 1229 int refcnt; /* anchor rules */ 1230 int match; 1231 char owner[PF_OWNER_NAME_SIZE]; 1232 }; 1233 #ifdef KERNEL 1234 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, 1235 pf_anchor_compare); 1236 RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, 1237 pf_anchor_compare); 1238 #else /* !KERNEL */ 1239 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 1240 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 1241 #endif /* !KERNEL */ 1242 1243 #define PF_RESERVED_ANCHOR "_pf" 1244 1245 #define PFR_TFLAG_PERSIST 0x00000001 1246 #define PFR_TFLAG_CONST 0x00000002 1247 #define PFR_TFLAG_ACTIVE 0x00000004 1248 #define PFR_TFLAG_INACTIVE 0x00000008 1249 #define PFR_TFLAG_REFERENCED 0x00000010 1250 #define PFR_TFLAG_REFDANCHOR 0x00000020 1251 #define PFR_TFLAG_USRMASK 0x00000003 1252 #define PFR_TFLAG_SETMASK 0x0000003C 1253 #define PFR_TFLAG_ALLMASK 0x0000003F 1254 1255 struct pfr_table { 1256 char pfrt_anchor[MAXPATHLEN]; 1257 char pfrt_name[PF_TABLE_NAME_SIZE]; 1258 uint32_t pfrt_flags; 1259 uint8_t pfrt_fback; 1260 }; 1261 1262 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 1263 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 1264 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 1265 1266 struct pfr_addr { 1267 union { 1268 struct in_addr _pfra_ip4addr; 1269 struct in6_addr _pfra_ip6addr; 1270 } pfra_u; 1271 uint8_t pfra_af; 1272 uint8_t pfra_net; 1273 uint8_t pfra_not; 1274 uint8_t pfra_fback; 1275 }; 1276 #define pfra_ip4addr pfra_u._pfra_ip4addr 1277 #define pfra_ip6addr pfra_u._pfra_ip6addr 1278 1279 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 1280 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 1281 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 1282 1283 struct pfr_astats { 1284 struct pfr_addr pfras_a; 1285 #if !defined(__LP64__) 1286 uint32_t _pad; 1287 #endif /* !__LP64__ */ 1288 uint64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1289 uint64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1290 uint64_t pfras_tzero; 1291 }; 1292 1293 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 1294 1295 struct pfr_tstats { 1296 struct pfr_table pfrts_t; 1297 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1298 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 1299 u_int64_t pfrts_match; 1300 u_int64_t pfrts_nomatch; 1301 u_int64_t pfrts_tzero; 1302 int pfrts_cnt; 1303 int pfrts_refcnt[PFR_REFCNT_MAX]; 1304 #if !defined(__LP64__) 1305 u_int32_t _pad; 1306 #endif /* !__LP64__ */ 1307 }; 1308 #define pfrts_name pfrts_t.pfrt_name 1309 #define pfrts_flags pfrts_t.pfrt_flags 1310 1311 #ifdef KERNEL 1312 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 1313 struct pfr_kentry { 1314 struct radix_node pfrke_node[2]; 1315 union sockaddr_union pfrke_sa; 1316 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1317 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 1318 SLIST_ENTRY(pfr_kentry) pfrke_workq; 1319 u_int64_t pfrke_tzero; 1320 u_int8_t pfrke_af; 1321 u_int8_t pfrke_net; 1322 u_int8_t pfrke_not; 1323 u_int8_t pfrke_mark; 1324 u_int8_t pfrke_intrpool; 1325 }; 1326 1327 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 1328 RB_HEAD(pfr_ktablehead, pfr_ktable); 1329 struct pfr_ktable { 1330 struct pfr_tstats pfrkt_ts; 1331 RB_ENTRY(pfr_ktable) pfrkt_tree; 1332 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 1333 struct radix_node_head *pfrkt_ip4; 1334 struct radix_node_head *pfrkt_ip6; 1335 struct pfr_ktable *pfrkt_shadow; 1336 struct pfr_ktable *pfrkt_root; 1337 struct pf_ruleset *pfrkt_rs; 1338 u_int64_t pfrkt_larg; 1339 u_int32_t pfrkt_nflags; 1340 }; 1341 #define pfrkt_t pfrkt_ts.pfrts_t 1342 #define pfrkt_name pfrkt_t.pfrt_name 1343 #define pfrkt_anchor pfrkt_t.pfrt_anchor 1344 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 1345 #define pfrkt_flags pfrkt_t.pfrt_flags 1346 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 1347 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 1348 #define pfrkt_packets pfrkt_ts.pfrts_packets 1349 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 1350 #define pfrkt_match pfrkt_ts.pfrts_match 1351 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 1352 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 1353 1354 RB_HEAD(pf_state_tree_lan_ext, pf_state_key); 1355 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, 1356 entry_lan_ext, pf_state_compare_lan_ext); 1357 1358 RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); 1359 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, 1360 entry_ext_gwy, pf_state_compare_ext_gwy); 1361 1362 RB_HEAD(pfi_ifhead, pfi_kif); 1363 1364 /* state tables */ 1365 extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; 1366 extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; 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 struct icmp6_hdr *icmp6; 1420 struct pf_grev1_hdr *grev1; 1421 struct pf_esp_hdr *esp; 1422 void *any; 1423 } hdr; 1424 1425 /* XXX TODO: Change baddr and naddr to *saddr */ 1426 struct pf_addr baddr; /* src address before translation */ 1427 struct pf_addr bdaddr; /* dst address before translation */ 1428 struct pf_addr naddr; /* src address after translation */ 1429 struct pf_addr ndaddr; /* dst address after translation */ 1430 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 1431 struct pf_addr *src; 1432 struct pf_addr *dst; 1433 struct ether_header *eh; 1434 pbuf_t *mp; 1435 int lmw; /* lazy writable offset */ 1436 struct pf_mtag *pf_mtag; 1437 u_int16_t *ip_sum; 1438 u_int32_t off; /* protocol header offset */ 1439 u_int32_t hdrlen; /* protocol header length */ 1440 u_int32_t p_len; /* total length of payload */ 1441 u_int16_t flags; /* Let SCRUB trigger behavior in */ 1442 /* state code. Easier than tags */ 1443 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 1444 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 1445 #define PFDESC_IP_FRAG 0x0004 /* This is a fragment */ 1446 sa_family_t af; 1447 sa_family_t naf; /* address family after translation */ 1448 u_int8_t proto; 1449 u_int8_t tos; 1450 u_int8_t ttl; 1451 u_int8_t proto_variant; 1452 mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ 1453 u_int32_t pktflags; /* mbuf packet flags (PKTF) */ 1454 u_int32_t flowsrc; /* flow source (FLOWSRC) */ 1455 u_int32_t flowhash; /* flow hash to identify the sender */ 1456 }; 1457 #endif /* KERNEL */ 1458 1459 /* flags for RDR options */ 1460 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 1461 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 1462 1463 /* Reasons code for passing/dropping a packet */ 1464 #define PFRES_MATCH 0 /* Explicit match of a rule */ 1465 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 1466 #define PFRES_FRAG 2 /* Dropping following fragment */ 1467 #define PFRES_SHORT 3 /* Dropping short packet */ 1468 #define PFRES_NORM 4 /* Dropping by normalizer */ 1469 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 1470 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 1471 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 1472 #define PFRES_IPOPTIONS 8 /* IP option */ 1473 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 1474 #define PFRES_BADSTATE 10 /* State mismatch */ 1475 #define PFRES_STATEINS 11 /* State insertion failure */ 1476 #define PFRES_MAXSTATES 12 /* State limit */ 1477 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 1478 #define PFRES_SYNPROXY 14 /* SYN proxy */ 1479 #define PFRES_DUMMYNET 15 /* Dummynet */ 1480 #define PFRES_INVPORT 16 /* Invalid TCP/UDP port */ 1481 #define PFRES_MAX 17 /* total+1 */ 1482 1483 #define PFRES_NAMES { \ 1484 "match", \ 1485 "bad-offset", \ 1486 "fragment", \ 1487 "short", \ 1488 "normalize", \ 1489 "memory", \ 1490 "bad-timestamp", \ 1491 "congestion", \ 1492 "ip-option", \ 1493 "proto-cksum", \ 1494 "state-mismatch", \ 1495 "state-insert", \ 1496 "state-limit", \ 1497 "src-limit", \ 1498 "synproxy", \ 1499 "dummynet", \ 1500 "invalid-port", \ 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 hfsc_opts { 1636 /* real-time service curve */ 1637 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ 1638 u_int64_t rtsc_d; /* the x-projection of m1 in msec */ 1639 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ 1640 u_int32_t rtsc_fl; /* service curve flags */ 1641 #if !defined(__LP64__) 1642 u_int32_t _pad; 1643 #endif /* !__LP64__ */ 1644 /* link-sharing service curve */ 1645 u_int64_t lssc_m1; 1646 u_int64_t lssc_d; 1647 u_int64_t lssc_m2; 1648 u_int32_t lssc_fl; 1649 #if !defined(__LP64__) 1650 u_int32_t __pad; 1651 #endif /* !__LP64__ */ 1652 /* upper-limit service curve */ 1653 u_int64_t ulsc_m1; 1654 u_int64_t ulsc_d; 1655 u_int64_t ulsc_m2; 1656 u_int32_t ulsc_fl; 1657 u_int32_t flags; /* scheduler flags */ 1658 }; 1659 1660 struct fairq_opts { 1661 u_int32_t nbuckets; /* hash buckets */ 1662 u_int32_t flags; 1663 u_int64_t hogs_m1; /* hog detection bandwidth */ 1664 1665 /* link-sharing service curve */ 1666 u_int64_t lssc_m1; 1667 u_int64_t lssc_d; 1668 u_int64_t lssc_m2; 1669 }; 1670 1671 /* bandwidth types */ 1672 #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ 1673 #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ 1674 1675 /* ALTQ rule flags */ 1676 #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ 1677 1678 /* queue rule flags */ 1679 #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ 1680 1681 struct pf_altq { 1682 char ifname[IFNAMSIZ]; 1683 1684 /* discipline-specific state */ 1685 void *altq_disc __attribute__((aligned(8))); 1686 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); 1687 #if !defined(__LP64__) 1688 u_int32_t _pad[2]; 1689 #endif /* !__LP64__ */ 1690 1691 u_int32_t aflags; /* ALTQ rule flags */ 1692 u_int32_t bwtype; /* bandwidth type */ 1693 1694 /* scheduler spec */ 1695 u_int32_t scheduler; /* scheduler type */ 1696 u_int32_t tbrsize; /* tokenbucket regulator size */ 1697 u_int64_t ifbandwidth; /* interface bandwidth */ 1698 1699 /* queue spec */ 1700 char qname[PF_QNAME_SIZE]; /* queue name */ 1701 char parent[PF_QNAME_SIZE]; /* parent name */ 1702 u_int32_t parent_qid; /* parent queue id */ 1703 u_int32_t qrflags; /* queue rule flags */ 1704 union { 1705 u_int32_t priority; /* priority */ 1706 u_int32_t weight; /* weight */ 1707 }; 1708 u_int32_t qlimit; /* queue size limit */ 1709 u_int32_t flags; /* misc flags */ 1710 #if !defined(__LP64__) 1711 u_int32_t __pad; 1712 #endif /* !__LP64__ */ 1713 u_int64_t bandwidth; /* queue bandwidth */ 1714 union { 1715 struct cbq_opts cbq_opts; 1716 struct priq_opts priq_opts; 1717 struct hfsc_opts hfsc_opts; 1718 struct fairq_opts fairq_opts; 1719 } pq_u; 1720 1721 u_int32_t qid; /* return value */ 1722 }; 1723 1724 struct pf_tagname { 1725 TAILQ_ENTRY(pf_tagname) entries; 1726 char name[PF_TAG_NAME_SIZE]; 1727 u_int16_t tag; 1728 int ref; 1729 }; 1730 1731 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1732 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1733 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1734 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1735 1736 #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ 1737 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ 1738 #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ 1739 1740 /* 1741 * ioctl parameter structures 1742 */ 1743 1744 struct pfioc_pooladdr { 1745 u_int32_t action; 1746 u_int32_t ticket; 1747 u_int32_t nr; 1748 u_int32_t r_num; 1749 u_int8_t r_action; 1750 u_int8_t r_last; 1751 u_int8_t af; 1752 char anchor[MAXPATHLEN]; 1753 struct pf_pooladdr addr; 1754 }; 1755 1756 struct pfioc_rule { 1757 u_int32_t action; 1758 u_int32_t ticket; 1759 u_int32_t pool_ticket; 1760 u_int32_t nr; 1761 char anchor[MAXPATHLEN]; 1762 char anchor_call[MAXPATHLEN]; 1763 struct pf_rule rule; 1764 }; 1765 1766 struct pfioc_natlook { 1767 struct pf_addr saddr; 1768 struct pf_addr daddr; 1769 struct pf_addr rsaddr; 1770 struct pf_addr rdaddr; 1771 union pf_state_xport sxport; 1772 union pf_state_xport dxport; 1773 union pf_state_xport rsxport; 1774 union pf_state_xport rdxport; 1775 sa_family_t af; 1776 u_int8_t proto; 1777 u_int8_t proto_variant; 1778 u_int8_t direction; 1779 }; 1780 1781 struct pfioc_state { 1782 struct pfsync_state state; 1783 }; 1784 1785 struct pfioc_src_node_kill { 1786 /* XXX returns the number of src nodes killed in psnk_af */ 1787 sa_family_t psnk_af; 1788 struct pf_rule_addr psnk_src; 1789 struct pf_rule_addr psnk_dst; 1790 }; 1791 1792 struct pfioc_state_addr_kill { 1793 struct pf_addr_wrap addr; 1794 u_int8_t reserved_[3]; 1795 u_int8_t neg; 1796 union pf_rule_xport xport; 1797 }; 1798 1799 struct pfioc_state_kill { 1800 /* XXX returns the number of states killed in psk_af */ 1801 sa_family_t psk_af; 1802 u_int8_t psk_proto; 1803 u_int8_t psk_proto_variant; 1804 u_int8_t _pad; 1805 struct pfioc_state_addr_kill psk_src; 1806 struct pfioc_state_addr_kill psk_dst; 1807 char psk_ifname[IFNAMSIZ]; 1808 char psk_ownername[PF_OWNER_NAME_SIZE]; 1809 }; 1810 1811 struct pfioc_states { 1812 int ps_len; 1813 union { 1814 caddr_t psu_buf; 1815 struct pfsync_state *psu_states; 1816 } ps_u __attribute__((aligned(8))); 1817 #define ps_buf ps_u.psu_buf 1818 #define ps_states ps_u.psu_states 1819 }; 1820 1821 #ifdef KERNEL 1822 struct pfioc_states_32 { 1823 int ps_len; 1824 union { 1825 user32_addr_t psu_buf; 1826 user32_addr_t psu_states; 1827 } ps_u __attribute__((aligned(8))); 1828 }; 1829 1830 struct pfioc_states_64 { 1831 int ps_len; 1832 union { 1833 user64_addr_t psu_buf; 1834 user64_addr_t psu_states; 1835 } ps_u __attribute__((aligned(8))); 1836 }; 1837 #endif /* KERNEL */ 1838 1839 #define PFTOK_PROCNAME_LEN 64 1840 #pragma pack(1) 1841 struct pfioc_token { 1842 u_int64_t token_value; 1843 u_int64_t timestamp; 1844 pid_t pid; 1845 char proc_name[PFTOK_PROCNAME_LEN]; 1846 }; 1847 #pragma pack() 1848 1849 struct pfioc_kernel_token { 1850 SLIST_ENTRY(pfioc_kernel_token) next; 1851 struct pfioc_token token; 1852 }; 1853 1854 struct pfioc_remove_token { 1855 u_int64_t token_value; 1856 u_int64_t refcount; 1857 }; 1858 1859 struct pfioc_tokens { 1860 int size; 1861 union { 1862 caddr_t pgtu_buf; 1863 struct pfioc_token *pgtu_tokens; 1864 } pgt_u __attribute__((aligned(8))); 1865 #define pgt_buf pgt_u.pgtu_buf 1866 #define pgt_tokens pgt_u.pgtu_tokens 1867 }; 1868 1869 #ifdef KERNEL 1870 struct pfioc_tokens_32 { 1871 int size; 1872 union { 1873 user32_addr_t pgtu_buf; 1874 user32_addr_t pgtu_tokens; 1875 } pgt_u __attribute__((aligned(8))); 1876 }; 1877 1878 struct pfioc_tokens_64 { 1879 int size; 1880 union { 1881 user64_addr_t pgtu_buf; 1882 user64_addr_t pgtu_tokens; 1883 } pgt_u __attribute__((aligned(8))); 1884 }; 1885 #endif /* KERNEL */ 1886 1887 1888 struct pfioc_src_nodes { 1889 int psn_len; 1890 union { 1891 caddr_t psu_buf; 1892 struct pf_src_node *psu_src_nodes; 1893 } psn_u __attribute__((aligned(8))); 1894 #define psn_buf psn_u.psu_buf 1895 #define psn_src_nodes psn_u.psu_src_nodes 1896 }; 1897 1898 #ifdef KERNEL 1899 struct pfioc_src_nodes_32 { 1900 int psn_len; 1901 union { 1902 user32_addr_t psu_buf; 1903 user32_addr_t psu_src_nodes; 1904 } psn_u __attribute__((aligned(8))); 1905 }; 1906 1907 struct pfioc_src_nodes_64 { 1908 int psn_len; 1909 union { 1910 user64_addr_t psu_buf; 1911 user64_addr_t psu_src_nodes; 1912 } psn_u __attribute__((aligned(8))); 1913 }; 1914 #endif /* KERNEL */ 1915 1916 struct pfioc_if { 1917 char ifname[IFNAMSIZ]; 1918 }; 1919 1920 struct pfioc_tm { 1921 int timeout; 1922 int seconds; 1923 }; 1924 1925 struct pfioc_limit { 1926 int index; 1927 unsigned limit; 1928 }; 1929 1930 struct pfioc_altq { 1931 u_int32_t action; 1932 u_int32_t ticket; 1933 u_int32_t nr; 1934 struct pf_altq altq __attribute__((aligned(8))); 1935 }; 1936 1937 struct pfioc_qstats { 1938 u_int32_t ticket; 1939 u_int32_t nr; 1940 void *buf __attribute__((aligned(8))); 1941 int nbytes __attribute__((aligned(8))); 1942 u_int8_t scheduler; 1943 }; 1944 1945 struct pfioc_ruleset { 1946 u_int32_t nr; 1947 char path[MAXPATHLEN]; 1948 char name[PF_ANCHOR_NAME_SIZE]; 1949 }; 1950 1951 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1952 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1953 struct pfioc_trans { 1954 int size; /* number of elements */ 1955 int esize; /* size of each element in bytes */ 1956 struct pfioc_trans_e { 1957 int rs_num; 1958 char anchor[MAXPATHLEN]; 1959 u_int32_t ticket; 1960 } *array __attribute__((aligned(8))); 1961 }; 1962 1963 #ifdef KERNEL 1964 struct pfioc_trans_32 { 1965 int size; /* number of elements */ 1966 int esize; /* size of each element in bytes */ 1967 user32_addr_t array __attribute__((aligned(8))); 1968 }; 1969 1970 struct pfioc_trans_64 { 1971 int size; /* number of elements */ 1972 int esize; /* size of each element in bytes */ 1973 user64_addr_t array __attribute__((aligned(8))); 1974 }; 1975 #endif /* KERNEL */ 1976 1977 1978 #define PFR_FLAG_ATOMIC 0x00000001 1979 #define PFR_FLAG_DUMMY 0x00000002 1980 #define PFR_FLAG_FEEDBACK 0x00000004 1981 #define PFR_FLAG_CLSTATS 0x00000008 1982 #define PFR_FLAG_ADDRSTOO 0x00000010 1983 #define PFR_FLAG_REPLACE 0x00000020 1984 #define PFR_FLAG_ALLRSETS 0x00000040 1985 #define PFR_FLAG_ALLMASK 0x0000007F 1986 #ifdef KERNEL 1987 #define PFR_FLAG_USERIOCTL 0x10000000 1988 #endif /* KERNEL */ 1989 1990 struct pfioc_table { 1991 struct pfr_table pfrio_table; 1992 void *pfrio_buffer __attribute__((aligned(8))); 1993 int pfrio_esize __attribute__((aligned(8))); 1994 int pfrio_size; 1995 int pfrio_size2; 1996 int pfrio_nadd; 1997 int pfrio_ndel; 1998 int pfrio_nchange; 1999 int pfrio_flags; 2000 u_int32_t pfrio_ticket; 2001 }; 2002 #define pfrio_exists pfrio_nadd 2003 #define pfrio_nzero pfrio_nadd 2004 #define pfrio_nmatch pfrio_nadd 2005 #define pfrio_naddr pfrio_size2 2006 #define pfrio_setflag pfrio_size2 2007 #define pfrio_clrflag pfrio_nadd 2008 2009 #ifdef KERNEL 2010 struct pfioc_table_32 { 2011 struct pfr_table pfrio_table; 2012 user32_addr_t pfrio_buffer __attribute__((aligned(8))); 2013 int pfrio_esize __attribute__((aligned(8))); 2014 int pfrio_size; 2015 int pfrio_size2; 2016 int pfrio_nadd; 2017 int pfrio_ndel; 2018 int pfrio_nchange; 2019 int pfrio_flags; 2020 u_int32_t pfrio_ticket; 2021 }; 2022 2023 struct pfioc_table_64 { 2024 struct pfr_table pfrio_table; 2025 user64_addr_t pfrio_buffer __attribute__((aligned(8))); 2026 int pfrio_esize __attribute__((aligned(8))); 2027 int pfrio_size; 2028 int pfrio_size2; 2029 int pfrio_nadd; 2030 int pfrio_ndel; 2031 int pfrio_nchange; 2032 int pfrio_flags; 2033 u_int32_t pfrio_ticket; 2034 }; 2035 #endif /* KERNEL */ 2036 2037 struct pfioc_iface { 2038 char pfiio_name[IFNAMSIZ]; 2039 void *pfiio_buffer __attribute__((aligned(8))); 2040 int pfiio_esize __attribute__((aligned(8))); 2041 int pfiio_size; 2042 int pfiio_nzero; 2043 int pfiio_flags; 2044 }; 2045 2046 #ifdef KERNEL 2047 struct pfioc_iface_32 { 2048 char pfiio_name[IFNAMSIZ]; 2049 user32_addr_t pfiio_buffer __attribute__((aligned(8))); 2050 int pfiio_esize __attribute__((aligned(8))); 2051 int pfiio_size; 2052 int pfiio_nzero; 2053 int pfiio_flags; 2054 }; 2055 2056 struct pfioc_iface_64 { 2057 char pfiio_name[IFNAMSIZ]; 2058 user64_addr_t pfiio_buffer __attribute__((aligned(8))); 2059 int pfiio_esize __attribute__((aligned(8))); 2060 int pfiio_size; 2061 int pfiio_nzero; 2062 int pfiio_flags; 2063 }; 2064 #endif /* KERNEL */ 2065 2066 struct pf_ifspeed { 2067 char ifname[IFNAMSIZ]; 2068 u_int64_t baudrate; 2069 }; 2070 2071 /* 2072 * ioctl operations 2073 */ 2074 2075 #define DIOCSTART _IO ('D', 1) 2076 #define DIOCSTOP _IO ('D', 2) 2077 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 2078 #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) 2079 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 2080 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 2081 #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) 2082 #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) 2083 /* XXX cut 10 - 17 */ 2084 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 2085 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 2086 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 2087 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 2088 #define DIOCCLRSTATUS _IO ('D', 22) 2089 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 2090 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 2091 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 2092 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 2093 #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) 2094 #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) 2095 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 2096 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 2097 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 2098 #define DIOCCLRRULECTRS _IO ('D', 38) 2099 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 2100 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 2101 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 2102 #define DIOCSTARTALTQ _IO ('D', 42) 2103 #define DIOCSTOPALTQ _IO ('D', 43) 2104 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 2105 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 2106 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 2107 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 2108 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 2109 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 2110 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 2111 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 2112 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 2113 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 2114 /* XXX cut 55 - 57 */ 2115 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 2116 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 2117 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 2118 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 2119 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 2120 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 2121 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 2122 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 2123 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 2124 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 2125 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 2126 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 2127 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 2128 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 2129 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 2130 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 2131 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 2132 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 2133 #define DIOCOSFPFLUSH _IO('D', 78) 2134 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 2135 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 2136 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 2137 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 2138 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 2139 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 2140 #define DIOCCLRSRCNODES _IO('D', 85) 2141 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 2142 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 2143 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 2144 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 2145 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) 2146 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) 2147 2148 #ifdef KERNEL 2149 RB_HEAD(pf_src_tree, pf_src_node); 2150 RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, 2151 pf_src_compare); 2152 extern struct pf_src_tree tree_src_tracking; 2153 2154 RB_HEAD(pf_state_tree_id, pf_state); 2155 RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, 2156 entry_id, pf_state_compare_id); 2157 extern struct pf_state_tree_id tree_id; 2158 extern struct pf_state_queue state_list; 2159 2160 TAILQ_HEAD(pf_poolqueue, pf_pool); 2161 extern struct pf_poolqueue pf_pools[2]; 2162 extern struct pf_palist pf_pabuf; 2163 extern u_int32_t ticket_pabuf; 2164 extern struct pf_poolqueue *pf_pools_active; 2165 extern struct pf_poolqueue *pf_pools_inactive; 2166 2167 __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, 2168 struct pf_addr_wrap *); 2169 __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); 2170 __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); 2171 __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); 2172 __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); 2173 2174 extern struct pool pf_src_tree_pl, pf_rule_pl; 2175 extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; 2176 extern struct pool pf_state_scrub_pl; 2177 extern struct pool pf_app_state_pl; 2178 2179 extern struct thread *pf_purge_thread; 2180 2181 extern void pf_register_m_tag(void); 2182 2183 __private_extern__ void pfinit(void); 2184 __private_extern__ void pf_purge_thread_fn(void *, wait_result_t) __dead2; 2185 __private_extern__ void pf_purge_expired_src_nodes(void); 2186 __private_extern__ void pf_purge_expired_states(u_int32_t); 2187 __private_extern__ void pf_unlink_state(struct pf_state *); 2188 __private_extern__ void pf_free_state(struct pf_state *); 2189 __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); 2190 __private_extern__ int pf_insert_src_node(struct pf_src_node **, 2191 struct pf_rule *, struct pf_addr *, sa_family_t); 2192 __private_extern__ void pf_src_tree_remove_state(struct pf_state *); 2193 __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); 2194 __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, 2195 u_int, int *); 2196 __private_extern__ void pf_print_state(struct pf_state *); 2197 __private_extern__ void pf_print_flags(u_int8_t); 2198 __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 2199 u_int8_t); 2200 2201 extern struct ifnet *sync_ifp; 2202 extern struct pf_rule pf_default_rule; 2203 __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, 2204 u_int8_t); 2205 __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); 2206 2207 struct ip_fw_args; 2208 2209 extern boolean_t is_nlc_enabled_glb; 2210 2211 #if INET 2212 __private_extern__ int pf_test_mbuf(int, struct ifnet *, struct mbuf **, 2213 struct ether_header *, struct ip_fw_args *); 2214 #endif /* INET */ 2215 2216 __private_extern__ int pf_test6_mbuf(int, struct ifnet *, struct mbuf **, 2217 struct ether_header *, struct ip_fw_args *); 2218 __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, 2219 struct pf_addr *, struct pf_addr *, u_int8_t); 2220 __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); 2221 __private_extern__ int pf_normalize_ip6(pbuf_t *, int, struct pfi_kif *, 2222 u_short *, struct pf_pdesc *); 2223 __private_extern__ int pf_refragment6(struct ifnet *, pbuf_t **, 2224 struct pf_fragment_tag *); 2225 2226 __private_extern__ void *pf_lazy_makewritable(struct pf_pdesc *, 2227 pbuf_t *, int); 2228 __private_extern__ void *pf_pull_hdr(pbuf_t *, int, void *, int, 2229 u_short *, u_short *, sa_family_t); 2230 __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 2231 __private_extern__ int pflog_packet(struct pfi_kif *, pbuf_t *, 2232 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, 2233 struct pf_ruleset *, struct pf_pdesc *); 2234 __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, 2235 struct pf_addr *, struct pf_addr *, sa_family_t); 2236 __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, 2237 struct pf_addr *, sa_family_t); 2238 __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 2239 __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 2240 __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, 2241 union pf_state_xport *); 2242 __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 2243 __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 2244 2245 __private_extern__ void pf_normalize_init(void); 2246 __private_extern__ int pf_normalize_isempty(void); 2247 __private_extern__ int pf_normalize_ip(pbuf_t *, int, struct pfi_kif *, 2248 u_short *, struct pf_pdesc *); 2249 __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, pbuf_t *, 2250 int, int, void *, struct pf_pdesc *); 2251 __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); 2252 __private_extern__ int pf_normalize_tcp_init(pbuf_t *, int, 2253 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, 2254 struct pf_state_peer *); 2255 __private_extern__ int pf_normalize_tcp_stateful(pbuf_t *, int, 2256 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, 2257 struct pf_state_peer *, struct pf_state_peer *, int *); 2258 __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); 2259 __private_extern__ void pf_purge_expired_fragments(void); 2260 __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, 2261 struct pfi_kif *); 2262 __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, 2263 struct pf_addr_wrap *); 2264 __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); 2265 __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, 2266 struct pf_state_key *); 2267 __private_extern__ void pf_detach_state(struct pf_state *, int); 2268 __private_extern__ void pfr_initialize(void); 2269 __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, 2270 sa_family_t); 2271 __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, 2272 sa_family_t, u_int64_t, int, int, int); 2273 __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, 2274 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); 2275 __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, 2276 struct pfi_dynaddr *); 2277 __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); 2278 __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, 2279 char *); 2280 __private_extern__ void pfr_detach_table(struct pfr_ktable *); 2281 __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); 2282 __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); 2283 __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); 2284 __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, 2285 int *, int); 2286 __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, 2287 int *, int); 2288 __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); 2289 __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, 2290 int *, int); 2291 __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); 2292 __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, 2293 u_int64_t); 2294 __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, 2295 int, int *, int); 2296 __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, 2297 int, int *, int); 2298 __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, 2299 int, int *, int *, int *, int *, int, u_int32_t); 2300 __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, 2301 int *, int); 2302 __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, 2303 int *, int); 2304 __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, 2305 int, int *, int); 2306 __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, 2307 int, int *, int); 2308 __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, 2309 int); 2310 __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, 2311 int); 2312 __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, 2313 int *, int); 2314 __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, 2315 int, int *, int *, u_int32_t, int); 2316 2317 extern struct pfi_kif *pfi_all; 2318 2319 __private_extern__ void pfi_initialize(void); 2320 __private_extern__ struct pfi_kif *pfi_kif_get(const char *); 2321 __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); 2322 __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); 2323 __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); 2324 __private_extern__ void pfi_attach_ifnet(struct ifnet *); 2325 __private_extern__ void pfi_detach_ifnet(struct ifnet *); 2326 __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 2327 sa_family_t); 2328 __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 2329 __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); 2330 __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); 2331 __private_extern__ void pfi_update_status(const char *, struct pf_status *); 2332 __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); 2333 __private_extern__ int pfi_set_flags(const char *, int); 2334 __private_extern__ int pfi_clear_flags(const char *, int); 2335 2336 __private_extern__ u_int16_t pf_tagname2tag(char *); 2337 __private_extern__ u_int16_t pf_tagname2tag_ext(char *); 2338 __private_extern__ void pf_tag_ref(u_int16_t); 2339 __private_extern__ void pf_tag_unref(u_int16_t); 2340 __private_extern__ int pf_tag_packet(pbuf_t *, struct pf_mtag *, 2341 int, unsigned int, struct pf_pdesc *); 2342 __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, 2343 struct pf_rule **, struct pf_rule **, int *); 2344 __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, 2345 struct pf_rule **, struct pf_rule **, int *); 2346 __private_extern__ u_int32_t pf_qname2qid(char *); 2347 __private_extern__ void pf_qid2qname(u_int32_t, char *); 2348 __private_extern__ void pf_qid_unref(u_int32_t); 2349 2350 extern struct pf_status pf_status; 2351 extern struct pool pf_frent_pl, pf_frag_pl; 2352 2353 struct pf_pool_limit { 2354 void *pp; 2355 unsigned limit; 2356 }; 2357 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 2358 2359 __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, 2360 struct mbuf **, unsigned int, int, struct ip_fw_args *); 2361 __private_extern__ int pf_ifaddr_hook(struct ifnet *); 2362 __private_extern__ void pf_ifnet_hook(struct ifnet *, int); 2363 2364 /* 2365 * The following are defined with "private extern" storage class for 2366 * kernel, and "extern" for user-space. 2367 */ 2368 extern struct pf_anchor_global pf_anchors; 2369 extern struct pf_anchor pf_main_anchor; 2370 #define pf_main_ruleset pf_main_anchor.ruleset 2371 2372 extern int pf_is_enabled; 2373 extern int16_t pf_nat64_configured; 2374 #define PF_IS_ENABLED (pf_is_enabled != 0) 2375 extern u_int32_t pf_hash_seed; 2376 2377 __private_extern__ int pf_get_ruleset_number(u_int8_t); 2378 __private_extern__ void pf_init_ruleset(struct pf_ruleset *); 2379 __private_extern__ int pf_anchor_setup(struct pf_rule *, 2380 const struct pf_ruleset *, const char *); 2381 __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, 2382 const struct pf_rule *, struct pfioc_rule *); 2383 __private_extern__ void pf_anchor_remove(struct pf_rule *); 2384 __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2385 __private_extern__ struct pf_anchor *pf_find_anchor(const char *); 2386 __private_extern__ int pf_reference_anchor(struct pf_anchor *a); 2387 __private_extern__ int pf_release_anchor(struct pf_anchor *a); 2388 __private_extern__ int pf_release_ruleset(struct pf_ruleset *r); 2389 __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); 2390 __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2391 const char *, int, int *); 2392 __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2393 __private_extern__ void pf_rs_initialize(void); 2394 2395 __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); 2396 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, 2397 pbuf_t *, int, const struct tcphdr *); 2398 __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( 2399 const struct ip *, const struct ip6_hdr *, const struct tcphdr *); 2400 __private_extern__ void pf_osfp_flush(void); 2401 __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); 2402 __private_extern__ void pf_osfp_initialize(void); 2403 __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 2404 __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); 2405 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); 2406 __private_extern__ struct pf_mtag *pf_find_mtag_pbuf(pbuf_t *); 2407 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); 2408 __private_extern__ struct pf_mtag *pf_get_mtag_pbuf(pbuf_t *); 2409 __private_extern__ struct pf_fragment_tag * pf_find_fragment_tag_pbuf(pbuf_t *); 2410 __private_extern__ struct pf_fragment_tag * pf_find_fragment_tag(struct mbuf *); 2411 __private_extern__ struct pf_fragment_tag * pf_copy_fragment_tag(struct mbuf *, 2412 struct pf_fragment_tag *, int); 2413 #if SKYWALK && defined(XNU_TARGET_OS_OSX) 2414 #define PF_COMPATIBLE_FLAGS_PF_ENABLED 0x00000001 2415 #define PF_COMPATIBLE_FLAGS_CUSTOM_ANCHORS_PRESENT 0x00000002 2416 #define PF_COMPATIBLE_FLAGS_CUSTOM_RULES_PRESENT 0x00000004 2417 2418 __private_extern__ uint32_t pf_check_compatible_rules(void); 2419 #endif // SKYWALK && defined(XNU_TARGET_OS_OSX) 2420 #else /* !KERNEL */ 2421 extern struct pf_anchor_global pf_anchors; 2422 extern struct pf_anchor pf_main_anchor; 2423 #define pf_main_ruleset pf_main_anchor.ruleset 2424 2425 /* these ruleset functions can be linked into userland programs (pfctl) */ 2426 extern int pf_get_ruleset_number(u_int8_t); 2427 extern void pf_init_ruleset(struct pf_ruleset *); 2428 extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, 2429 const char *); 2430 extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, 2431 struct pfioc_rule *); 2432 extern void pf_anchor_remove(struct pf_rule *); 2433 extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); 2434 extern struct pf_anchor *pf_find_anchor(const char *); 2435 extern struct pf_ruleset *pf_find_ruleset(const char *); 2436 extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, 2437 const char *, int, int *); 2438 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 2439 extern void pf_rs_initialize(void); 2440 #endif /* !KERNEL */ 2441 2442 #ifdef __cplusplus 2443 } 2444 #endif 2445 #endif /* PF || !KERNEL */ 2446 #endif /* PRIVATE */ 2447 #endif /* _NET_PFVAR_H_ */ 2448