pfvar.h revision 1.11
1 /* $NetBSD: pfvar.h,v 1.11 2006/01/17 12:24:53 peter Exp $ */ 2 /* $OpenBSD: pfvar.h,v 1.213 2005/03/03 07:13:39 dhartmei Exp $ */ 3 4 /* 5 * Copyright (c) 2001 Daniel Hartmeier 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 */ 33 34 #ifndef _NET_PFVAR_H_ 35 #define _NET_PFVAR_H_ 36 37 #include <sys/param.h> 38 #include <sys/types.h> 39 #include <sys/queue.h> 40 #include <sys/tree.h> 41 42 #include <net/radix.h> 43 #ifdef __OpenBSD__ 44 #include <net/route.h> 45 #include <netinet/ip_ipsp.h> 46 #else 47 #include <netinet/in.h> 48 #endif 49 #include <netinet/tcp_fsm.h> 50 51 #ifdef __NetBSD__ 52 union sockaddr_union { 53 struct sockaddr sa; 54 struct sockaddr_in sin; 55 struct sockaddr_in6 sin6; 56 }; 57 #endif 58 59 struct ip; 60 61 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 62 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 63 64 enum { PF_INOUT, PF_IN, PF_OUT }; 65 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 66 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 67 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 68 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 69 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 70 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 71 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 72 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 73 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 74 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 75 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 76 /* 77 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 78 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 79 */ 80 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 81 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 82 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 83 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 84 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 85 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 86 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 87 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 88 89 /* PFTM default values */ 90 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 91 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 92 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */ 93 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */ 94 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 95 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 96 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 97 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 98 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 99 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 100 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 101 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 102 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 103 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 104 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 105 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 106 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 107 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 108 109 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 110 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 111 #define PF_POOL_IDMASK 0x0f 112 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 113 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 114 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 115 PF_ADDR_TABLE, PF_ADDR_RTLABEL }; 116 #define PF_POOL_TYPEMASK 0x0f 117 #define PF_POOL_STICKYADDR 0x20 118 #define PF_WSCALE_FLAG 0x80 119 #define PF_WSCALE_MASK 0x0f 120 121 struct pf_addr { 122 union { 123 struct in_addr v4; 124 struct in6_addr v6; 125 u_int8_t addr8[16]; 126 u_int16_t addr16[8]; 127 u_int32_t addr32[4]; 128 } pfa; /* 128-bit address */ 129 #define v4 pfa.v4 130 #define v6 pfa.v6 131 #define addr8 pfa.addr8 132 #define addr16 pfa.addr16 133 #define addr32 pfa.addr32 134 }; 135 136 #define PF_TABLE_NAME_SIZE 32 137 138 #define PFI_AFLAG_NETWORK 0x01 139 #define PFI_AFLAG_BROADCAST 0x02 140 #define PFI_AFLAG_PEER 0x04 141 #define PFI_AFLAG_MODEMASK 0x07 142 #define PFI_AFLAG_NOALIAS 0x08 143 144 #ifndef RTLABEL_LEN 145 #define RTLABEL_LEN 32 146 #endif 147 148 struct pf_addr_wrap { 149 union { 150 struct { 151 struct pf_addr addr; 152 struct pf_addr mask; 153 } a; 154 char ifname[IFNAMSIZ]; 155 char tblname[PF_TABLE_NAME_SIZE]; 156 char rtlabelname[RTLABEL_LEN]; 157 u_int32_t rtlabel; 158 } v; 159 union { 160 struct pfi_dynaddr *dyn; 161 struct pfr_ktable *tbl; 162 int dyncnt; 163 int tblcnt; 164 } p; 165 u_int8_t type; /* PF_ADDR_* */ 166 u_int8_t iflags; /* PFI_AFLAG_* */ 167 }; 168 169 #ifdef __NetBSD__ 170 struct hook_desc { 171 TAILQ_ENTRY(hook_desc) hd_list; 172 void (*hd_fn)(void *); 173 void *hd_arg; 174 }; 175 TAILQ_HEAD(hook_desc_head, hook_desc); 176 #endif 177 178 #ifdef _KERNEL 179 180 struct pfi_dynaddr { 181 struct pf_addr pfid_addr4; 182 struct pf_addr pfid_mask4; 183 struct pf_addr pfid_addr6; 184 struct pf_addr pfid_mask6; 185 struct pfr_ktable *pfid_kt; 186 struct pfi_kif *pfid_kif; 187 void *pfid_hook_cookie; 188 int pfid_net; /* optional mask, or 128 */ 189 int pfid_acnt4; /* address count, IPv4 */ 190 int pfid_acnt6; /* address count, IPv6 */ 191 sa_family_t pfid_af; /* rule address family */ 192 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 193 }; 194 195 /* 196 * Address manipulation macros 197 */ 198 199 #ifdef INET 200 #ifndef INET6 201 #define PF_INET_ONLY 202 #endif /* ! INET6 */ 203 #endif /* INET */ 204 205 #ifdef INET6 206 #ifndef INET 207 #define PF_INET6_ONLY 208 #endif /* ! INET */ 209 #endif /* INET6 */ 210 211 #ifdef INET 212 #ifdef INET6 213 #define PF_INET_INET6 214 #endif /* INET6 */ 215 #endif /* INET */ 216 217 #else 218 219 #define PF_INET_INET6 220 221 #endif /* _KERNEL */ 222 223 /* Both IPv4 and IPv6 */ 224 #ifdef PF_INET_INET6 225 226 #define PF_AEQ(a, b, c) \ 227 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 228 ((a)->addr32[3] == (b)->addr32[3] && \ 229 (a)->addr32[2] == (b)->addr32[2] && \ 230 (a)->addr32[1] == (b)->addr32[1] && \ 231 (a)->addr32[0] == (b)->addr32[0])) \ 232 233 #define PF_ANEQ(a, b, c) \ 234 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 235 ((a)->addr32[3] != (b)->addr32[3] || \ 236 (a)->addr32[2] != (b)->addr32[2] || \ 237 (a)->addr32[1] != (b)->addr32[1] || \ 238 (a)->addr32[0] != (b)->addr32[0])) \ 239 240 #define PF_AZERO(a, c) \ 241 ((c == AF_INET && !(a)->addr32[0]) || \ 242 (!(a)->addr32[0] && !(a)->addr32[1] && \ 243 !(a)->addr32[2] && !(a)->addr32[3] )) \ 244 245 #define PF_MATCHA(n, a, m, b, f) \ 246 pf_match_addr(n, a, m, b, f) 247 248 #define PF_ACPY(a, b, f) \ 249 pf_addrcpy(a, b, f) 250 251 #define PF_AINC(a, f) \ 252 pf_addr_inc(a, f) 253 254 #define PF_POOLMASK(a, b, c, d, f) \ 255 pf_poolmask(a, b, c, d, f) 256 257 #else 258 259 /* Just IPv6 */ 260 261 #ifdef PF_INET6_ONLY 262 263 #define PF_AEQ(a, b, c) \ 264 ((a)->addr32[3] == (b)->addr32[3] && \ 265 (a)->addr32[2] == (b)->addr32[2] && \ 266 (a)->addr32[1] == (b)->addr32[1] && \ 267 (a)->addr32[0] == (b)->addr32[0]) \ 268 269 #define PF_ANEQ(a, b, c) \ 270 ((a)->addr32[3] != (b)->addr32[3] || \ 271 (a)->addr32[2] != (b)->addr32[2] || \ 272 (a)->addr32[1] != (b)->addr32[1] || \ 273 (a)->addr32[0] != (b)->addr32[0]) \ 274 275 #define PF_AZERO(a, c) \ 276 (!(a)->addr32[0] && \ 277 !(a)->addr32[1] && \ 278 !(a)->addr32[2] && \ 279 !(a)->addr32[3] ) \ 280 281 #define PF_MATCHA(n, a, m, b, f) \ 282 pf_match_addr(n, a, m, b, f) 283 284 #define PF_ACPY(a, b, f) \ 285 pf_addrcpy(a, b, f) 286 287 #define PF_AINC(a, f) \ 288 pf_addr_inc(a, f) 289 290 #define PF_POOLMASK(a, b, c, d, f) \ 291 pf_poolmask(a, b, c, d, f) 292 293 #else 294 295 /* Just IPv4 */ 296 #ifdef PF_INET_ONLY 297 298 #define PF_AEQ(a, b, c) \ 299 ((a)->addr32[0] == (b)->addr32[0]) 300 301 #define PF_ANEQ(a, b, c) \ 302 ((a)->addr32[0] != (b)->addr32[0]) 303 304 #define PF_AZERO(a, c) \ 305 (!(a)->addr32[0]) 306 307 #define PF_MATCHA(n, a, m, b, f) \ 308 pf_match_addr(n, a, m, b, f) 309 310 #define PF_ACPY(a, b, f) \ 311 (a)->v4.s_addr = (b)->v4.s_addr 312 313 #define PF_AINC(a, f) \ 314 do { \ 315 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 316 } while (0) 317 318 #define PF_POOLMASK(a, b, c, d, f) \ 319 do { \ 320 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 321 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 322 } while (0) 323 324 #endif /* PF_INET_ONLY */ 325 #endif /* PF_INET6_ONLY */ 326 #endif /* PF_INET_INET6 */ 327 328 #define PF_MISMATCHAW(aw, x, af, neg) \ 329 ( \ 330 (((aw)->type == PF_ADDR_NOROUTE && \ 331 pf_routable((x), (af))) || \ 332 ((aw)->type == PF_ADDR_RTLABEL && \ 333 !pf_rtlabel_match((x), (af), (aw))) || \ 334 ((aw)->type == PF_ADDR_TABLE && \ 335 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 336 ((aw)->type == PF_ADDR_DYNIFTL && \ 337 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 338 ((aw)->type == PF_ADDR_ADDRMASK && \ 339 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 340 !PF_MATCHA(0, &(aw)->v.a.addr, \ 341 &(aw)->v.a.mask, (x), (af)))) != \ 342 (neg) \ 343 ) 344 345 struct pf_rule_uid { 346 uid_t uid[2]; 347 u_int8_t op; 348 }; 349 350 struct pf_rule_gid { 351 uid_t gid[2]; 352 u_int8_t op; 353 }; 354 355 struct pf_rule_addr { 356 struct pf_addr_wrap addr; 357 u_int16_t port[2]; 358 u_int8_t neg; 359 u_int8_t port_op; 360 }; 361 362 struct pf_pooladdr { 363 struct pf_addr_wrap addr; 364 TAILQ_ENTRY(pf_pooladdr) entries; 365 char ifname[IFNAMSIZ]; 366 struct pfi_kif *kif; 367 }; 368 369 TAILQ_HEAD(pf_palist, pf_pooladdr); 370 371 struct pf_poolhashkey { 372 union { 373 u_int8_t key8[16]; 374 u_int16_t key16[8]; 375 u_int32_t key32[4]; 376 } pfk; /* 128-bit hash key */ 377 #define key8 pfk.key8 378 #define key16 pfk.key16 379 #define key32 pfk.key32 380 }; 381 382 struct pf_pool { 383 struct pf_palist list; 384 struct pf_pooladdr *cur; 385 struct pf_poolhashkey key; 386 struct pf_addr counter; 387 int tblidx; 388 u_int16_t proxy_port[2]; 389 u_int8_t port_op; 390 u_int8_t opts; 391 }; 392 393 394 /* A packed Operating System description for fingerprinting */ 395 typedef u_int32_t pf_osfp_t; 396 #define PF_OSFP_ANY ((pf_osfp_t)0) 397 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 398 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 399 400 struct pf_osfp_entry { 401 SLIST_ENTRY(pf_osfp_entry) fp_entry; 402 pf_osfp_t fp_os; 403 int fp_enflags; 404 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 405 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 406 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 407 #define PF_OSFP_LEN 32 408 char fp_class_nm[PF_OSFP_LEN]; 409 char fp_version_nm[PF_OSFP_LEN]; 410 char fp_subtype_nm[PF_OSFP_LEN]; 411 }; 412 #define PF_OSFP_ENTRY_EQ(a, b) \ 413 ((a)->fp_os == (b)->fp_os && \ 414 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 415 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 416 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 417 418 /* handle pf_osfp_t packing */ 419 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 420 #define _FP_UNUSED_BITS 1 421 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 422 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 423 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 424 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 425 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 426 ((1 << _FP_CLASS_BITS) - 1); \ 427 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 428 ((1 << _FP_VERSION_BITS) - 1);\ 429 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 430 } while(0) 431 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 432 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 433 + _FP_SUBTYPE_BITS); \ 434 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 435 _FP_SUBTYPE_BITS; \ 436 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 437 } while(0) 438 439 /* the fingerprint of an OSes TCP SYN packet */ 440 typedef u_int64_t pf_tcpopts_t; 441 struct pf_os_fingerprint { 442 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 443 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 444 u_int16_t fp_wsize; /* TCP window size */ 445 u_int16_t fp_psize; /* ip->ip_len */ 446 u_int16_t fp_mss; /* TCP MSS */ 447 u_int16_t fp_flags; 448 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 449 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 450 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 451 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 452 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 453 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 454 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 455 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 456 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 457 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 458 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 459 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 460 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 461 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 462 u_int8_t fp_optcnt; /* TCP option count */ 463 u_int8_t fp_wscale; /* TCP window scaling */ 464 u_int8_t fp_ttl; /* IPv4 TTL */ 465 #define PF_OSFP_MAXTTL_OFFSET 40 466 /* TCP options packing */ 467 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 468 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 469 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 470 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 471 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 472 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 473 #define PF_OSFP_MAX_OPTS \ 474 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 475 / PF_OSFP_TCPOPT_BITS 476 477 SLIST_ENTRY(pf_os_fingerprint) fp_next; 478 }; 479 480 struct pf_osfp_ioctl { 481 struct pf_osfp_entry fp_os; 482 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 483 u_int16_t fp_wsize; /* TCP window size */ 484 u_int16_t fp_psize; /* ip->ip_len */ 485 u_int16_t fp_mss; /* TCP MSS */ 486 u_int16_t fp_flags; 487 u_int8_t fp_optcnt; /* TCP option count */ 488 u_int8_t fp_wscale; /* TCP window scaling */ 489 u_int8_t fp_ttl; /* IPv4 TTL */ 490 491 int fp_getnum; /* DIOCOSFPGET number */ 492 }; 493 494 495 union pf_rule_ptr { 496 struct pf_rule *ptr; 497 u_int32_t nr; 498 }; 499 500 #define PF_ANCHOR_NAME_SIZE 64 501 502 struct pf_rule { 503 struct pf_rule_addr src; 504 struct pf_rule_addr dst; 505 #define PF_SKIP_IFP 0 506 #define PF_SKIP_DIR 1 507 #define PF_SKIP_AF 2 508 #define PF_SKIP_PROTO 3 509 #define PF_SKIP_SRC_ADDR 4 510 #define PF_SKIP_SRC_PORT 5 511 #define PF_SKIP_DST_ADDR 6 512 #define PF_SKIP_DST_PORT 7 513 #define PF_SKIP_COUNT 8 514 union pf_rule_ptr skip[PF_SKIP_COUNT]; 515 #define PF_RULE_LABEL_SIZE 64 516 char label[PF_RULE_LABEL_SIZE]; 517 #define PF_QNAME_SIZE 16 518 char ifname[IFNAMSIZ]; 519 char qname[PF_QNAME_SIZE]; 520 char pqname[PF_QNAME_SIZE]; 521 #define PF_TAG_NAME_SIZE 16 522 char tagname[PF_TAG_NAME_SIZE]; 523 char match_tagname[PF_TAG_NAME_SIZE]; 524 525 char overload_tblname[PF_TABLE_NAME_SIZE]; 526 527 TAILQ_ENTRY(pf_rule) entries; 528 struct pf_pool rpool; 529 530 u_int64_t evaluations; 531 u_int64_t packets; 532 u_int64_t bytes; 533 534 struct pfi_kif *kif; 535 struct pf_anchor *anchor; 536 struct pfr_ktable *overload_tbl; 537 538 pf_osfp_t os_fingerprint; 539 540 u_int32_t timeout[PFTM_MAX]; 541 u_int32_t states; 542 u_int32_t max_states; 543 u_int32_t src_nodes; 544 u_int32_t max_src_nodes; 545 u_int32_t max_src_states; 546 u_int32_t max_src_conn; 547 struct { 548 u_int32_t limit; 549 u_int32_t seconds; 550 } max_src_conn_rate; 551 u_int32_t qid; 552 u_int32_t pqid; 553 u_int32_t rt_listid; 554 u_int32_t nr; 555 u_int32_t prob; 556 557 u_int16_t return_icmp; 558 u_int16_t return_icmp6; 559 u_int16_t max_mss; 560 u_int16_t tag; 561 u_int16_t match_tag; 562 563 struct pf_rule_uid uid; 564 struct pf_rule_gid gid; 565 566 u_int32_t rule_flag; 567 u_int8_t action; 568 u_int8_t direction; 569 u_int8_t log; 570 u_int8_t quick; 571 u_int8_t ifnot; 572 u_int8_t match_tag_not; 573 u_int8_t natpass; 574 575 #define PF_STATE_NORMAL 0x1 576 #define PF_STATE_MODULATE 0x2 577 #define PF_STATE_SYNPROXY 0x3 578 u_int8_t keep_state; 579 sa_family_t af; 580 u_int8_t proto; 581 u_int8_t type; 582 u_int8_t code; 583 u_int8_t flags; 584 u_int8_t flagset; 585 u_int8_t min_ttl; 586 u_int8_t allow_opts; 587 u_int8_t rt; 588 u_int8_t return_ttl; 589 u_int8_t tos; 590 u_int8_t anchor_relative; 591 u_int8_t anchor_wildcard; 592 593 #define PF_FLUSH 0x01 594 #define PF_FLUSH_GLOBAL 0x02 595 u_int8_t flush; 596 }; 597 598 /* rule flags */ 599 #define PFRULE_DROP 0x0000 600 #define PFRULE_RETURNRST 0x0001 601 #define PFRULE_FRAGMENT 0x0002 602 #define PFRULE_RETURNICMP 0x0004 603 #define PFRULE_RETURN 0x0008 604 #define PFRULE_NOSYNC 0x0010 605 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 606 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 607 608 /* scrub flags */ 609 #define PFRULE_NODF 0x0100 610 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 611 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 612 #define PFRULE_RANDOMID 0x0800 613 #define PFRULE_REASSEMBLE_TCP 0x1000 614 615 /* rule flags again */ 616 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 617 #define PFRULE_GRBOUND 0x00020000 /* group-bound */ 618 619 #define PFSTATE_HIWAT 10000 /* default state table size */ 620 621 622 struct pf_threshold { 623 u_int32_t limit; 624 #define PF_THRESHOLD_MULT 1000 625 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 626 u_int32_t seconds; 627 u_int32_t count; 628 u_int32_t last; 629 }; 630 631 struct pf_src_node { 632 RB_ENTRY(pf_src_node) entry; 633 struct pf_addr addr; 634 struct pf_addr raddr; 635 union pf_rule_ptr rule; 636 struct pfi_kif *kif; 637 u_int32_t bytes; 638 u_int32_t packets; 639 u_int32_t states; 640 u_int32_t conn; 641 struct pf_threshold conn_rate; 642 u_int32_t creation; 643 u_int32_t expire; 644 sa_family_t af; 645 u_int8_t ruletype; 646 }; 647 648 #define PFSNODE_HIWAT 10000 /* default source node table size */ 649 650 struct pf_state_scrub { 651 struct timeval pfss_last; /* time received last packet */ 652 u_int32_t pfss_tsecr; /* last echoed timestamp */ 653 u_int32_t pfss_tsval; /* largest timestamp */ 654 u_int32_t pfss_tsval0; /* original timestamp */ 655 u_int16_t pfss_flags; 656 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 657 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 658 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 659 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 660 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 661 u_int8_t pfss_ttl; /* stashed TTL */ 662 u_int8_t pad; 663 u_int32_t pfss_ts_mod; /* timestamp modulation */ 664 }; 665 666 struct pf_state_host { 667 struct pf_addr addr; 668 u_int16_t port; 669 u_int16_t pad; 670 }; 671 672 struct pf_state_peer { 673 u_int32_t seqlo; /* Max sequence number sent */ 674 u_int32_t seqhi; /* Max the other end ACKd + win */ 675 u_int32_t seqdiff; /* Sequence number modulator */ 676 u_int16_t max_win; /* largest window (pre scaling) */ 677 u_int8_t state; /* active state level */ 678 u_int8_t wscale; /* window scaling factor */ 679 u_int16_t mss; /* Maximum segment size option */ 680 struct pf_state_scrub *scrub; /* state is scrubbed */ 681 }; 682 683 TAILQ_HEAD(pf_state_queue, pf_state); 684 685 struct pf_state { 686 u_int64_t id; 687 union { 688 struct { 689 RB_ENTRY(pf_state) entry_lan_ext; 690 RB_ENTRY(pf_state) entry_ext_gwy; 691 RB_ENTRY(pf_state) entry_id; 692 TAILQ_ENTRY(pf_state) entry_updates; 693 struct pfi_kif *kif; 694 } s; 695 char ifname[IFNAMSIZ]; 696 } u; 697 struct pf_state_host lan; 698 struct pf_state_host gwy; 699 struct pf_state_host ext; 700 struct pf_state_peer src; 701 struct pf_state_peer dst; 702 union pf_rule_ptr rule; 703 union pf_rule_ptr anchor; 704 union pf_rule_ptr nat_rule; 705 struct pf_addr rt_addr; 706 struct pfi_kif *rt_kif; 707 struct pf_src_node *src_node; 708 struct pf_src_node *nat_src_node; 709 u_int32_t creation; 710 u_int32_t expire; 711 u_int32_t pfsync_time; 712 u_int32_t packets[2]; 713 u_int32_t bytes[2]; 714 u_int32_t creatorid; 715 u_int16_t tag; 716 sa_family_t af; 717 u_int8_t proto; 718 u_int8_t direction; 719 u_int8_t log; 720 u_int8_t allow_opts; 721 u_int8_t timeout; 722 u_int8_t sync_flags; 723 #define PFSTATE_NOSYNC 0x01 724 #define PFSTATE_FROMSYNC 0x02 725 #define PFSTATE_STALE 0x04 726 u_int8_t pad; 727 }; 728 729 TAILQ_HEAD(pf_rulequeue, pf_rule); 730 731 struct pf_anchor; 732 733 struct pf_ruleset { 734 struct { 735 struct pf_rulequeue queues[2]; 736 struct { 737 struct pf_rulequeue *ptr; 738 u_int32_t ticket; 739 int open; 740 } active, inactive; 741 } rules[PF_RULESET_MAX]; 742 struct pf_anchor *anchor; 743 u_int32_t tticket; 744 int tables; 745 int topen; 746 }; 747 748 RB_HEAD(pf_anchor_global, pf_anchor); 749 RB_HEAD(pf_anchor_node, pf_anchor); 750 struct pf_anchor { 751 RB_ENTRY(pf_anchor) entry_global; 752 RB_ENTRY(pf_anchor) entry_node; 753 struct pf_anchor *parent; 754 struct pf_anchor_node children; 755 char name[PF_ANCHOR_NAME_SIZE]; 756 char path[MAXPATHLEN]; 757 struct pf_ruleset ruleset; 758 int refcnt; /* anchor rules */ 759 }; 760 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 761 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 762 763 #define PF_RESERVED_ANCHOR "_pf" 764 765 #define PFR_TFLAG_PERSIST 0x00000001 766 #define PFR_TFLAG_CONST 0x00000002 767 #define PFR_TFLAG_ACTIVE 0x00000004 768 #define PFR_TFLAG_INACTIVE 0x00000008 769 #define PFR_TFLAG_REFERENCED 0x00000010 770 #define PFR_TFLAG_REFDANCHOR 0x00000020 771 #define PFR_TFLAG_USRMASK 0x00000003 772 #define PFR_TFLAG_SETMASK 0x0000003C 773 #define PFR_TFLAG_ALLMASK 0x0000003F 774 775 struct pfr_table { 776 char pfrt_anchor[MAXPATHLEN]; 777 char pfrt_name[PF_TABLE_NAME_SIZE]; 778 u_int32_t pfrt_flags; 779 u_int8_t pfrt_fback; 780 }; 781 782 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 783 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 784 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 785 786 struct pfr_addr { 787 union { 788 struct in_addr _pfra_ip4addr; 789 struct in6_addr _pfra_ip6addr; 790 } pfra_u; 791 u_int8_t pfra_af; 792 u_int8_t pfra_net; 793 u_int8_t pfra_not; 794 u_int8_t pfra_fback; 795 }; 796 #define pfra_ip4addr pfra_u._pfra_ip4addr 797 #define pfra_ip6addr pfra_u._pfra_ip6addr 798 799 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 800 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 801 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 802 803 struct pfr_astats { 804 struct pfr_addr pfras_a; 805 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 806 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 807 long pfras_tzero; 808 }; 809 810 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 811 812 struct pfr_tstats { 813 struct pfr_table pfrts_t; 814 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 815 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 816 u_int64_t pfrts_match; 817 u_int64_t pfrts_nomatch; 818 long pfrts_tzero; 819 int pfrts_cnt; 820 int pfrts_refcnt[PFR_REFCNT_MAX]; 821 }; 822 #define pfrts_name pfrts_t.pfrt_name 823 #define pfrts_flags pfrts_t.pfrt_flags 824 825 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 826 struct pfr_kentry { 827 struct radix_node pfrke_node[2]; 828 union sockaddr_union pfrke_sa; 829 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 830 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 831 SLIST_ENTRY(pfr_kentry) pfrke_workq; 832 long pfrke_tzero; 833 u_int8_t pfrke_af; 834 u_int8_t pfrke_net; 835 u_int8_t pfrke_not; 836 u_int8_t pfrke_mark; 837 u_int8_t pfrke_intrpool; 838 }; 839 840 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 841 RB_HEAD(pfr_ktablehead, pfr_ktable); 842 struct pfr_ktable { 843 struct pfr_tstats pfrkt_ts; 844 RB_ENTRY(pfr_ktable) pfrkt_tree; 845 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 846 struct radix_node_head *pfrkt_ip4; 847 struct radix_node_head *pfrkt_ip6; 848 struct pfr_ktable *pfrkt_shadow; 849 struct pfr_ktable *pfrkt_root; 850 struct pf_ruleset *pfrkt_rs; 851 long pfrkt_larg; 852 int pfrkt_nflags; 853 }; 854 #define pfrkt_t pfrkt_ts.pfrts_t 855 #define pfrkt_name pfrkt_t.pfrt_name 856 #define pfrkt_anchor pfrkt_t.pfrt_anchor 857 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 858 #define pfrkt_flags pfrkt_t.pfrt_flags 859 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 860 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 861 #define pfrkt_packets pfrkt_ts.pfrts_packets 862 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 863 #define pfrkt_match pfrkt_ts.pfrts_match 864 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 865 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 866 867 RB_HEAD(pf_state_tree_lan_ext, pf_state); 868 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 869 u.s.entry_lan_ext, pf_state_compare_lan_ext) 870 871 RB_HEAD(pf_state_tree_ext_gwy, pf_state); 872 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 873 u.s.entry_ext_gwy, pf_state_compare_ext_gwy) 874 875 struct pfi_if { 876 char pfif_name[IFNAMSIZ]; 877 u_int64_t pfif_packets[2][2][2]; 878 u_int64_t pfif_bytes[2][2][2]; 879 u_int64_t pfif_addcnt; 880 u_int64_t pfif_delcnt; 881 long pfif_tzero; 882 int pfif_states; 883 int pfif_rules; 884 int pfif_flags; 885 }; 886 887 TAILQ_HEAD(pfi_grouphead, pfi_kif); 888 TAILQ_HEAD(pfi_statehead, pfi_kif); 889 RB_HEAD(pfi_ifhead, pfi_kif); 890 struct pfi_kif { 891 struct pfi_if pfik_if; 892 RB_ENTRY(pfi_kif) pfik_tree; 893 struct pf_state_tree_lan_ext pfik_lan_ext; 894 struct pf_state_tree_ext_gwy pfik_ext_gwy; 895 struct pfi_grouphead pfik_grouphead; 896 TAILQ_ENTRY(pfi_kif) pfik_instances; 897 TAILQ_ENTRY(pfi_kif) pfik_w_states; 898 struct hook_desc_head *pfik_ah_head; 899 void *pfik_ah_cookie; 900 struct pfi_kif *pfik_parent; 901 struct ifnet *pfik_ifp; 902 int pfik_states; 903 int pfik_rules; 904 #ifdef __NetBSD__ 905 struct hook_desc_head pfik_ifaddrhooks; 906 #endif 907 }; 908 #define pfik_name pfik_if.pfif_name 909 #define pfik_packets pfik_if.pfif_packets 910 #define pfik_bytes pfik_if.pfif_bytes 911 #define pfik_tzero pfik_if.pfif_tzero 912 #define pfik_flags pfik_if.pfif_flags 913 #define pfik_addcnt pfik_if.pfif_addcnt 914 #define pfik_delcnt pfik_if.pfif_delcnt 915 #define pfik_states pfik_if.pfif_states 916 #define pfik_rules pfik_if.pfif_rules 917 918 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 919 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 920 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 921 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 922 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 923 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 924 #define PFI_IFLAG_SETABLE_MASK 0x0100 /* setable via DIOC{SET,CLR}IFFLAG */ 925 926 struct pf_pdesc { 927 u_int64_t tot_len; /* Make Mickey money */ 928 union { 929 struct tcphdr *tcp; 930 struct udphdr *udp; 931 struct icmp *icmp; 932 #ifdef INET6 933 struct icmp6_hdr *icmp6; 934 #endif /* INET6 */ 935 void *any; 936 } hdr; 937 struct pf_addr baddr; /* address before translation */ 938 struct pf_addr naddr; /* address after translation */ 939 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 940 struct pf_addr *src; 941 struct pf_addr *dst; 942 struct ether_header 943 *eh; 944 u_int16_t *ip_sum; 945 u_int32_t p_len; /* total length of payload */ 946 u_int16_t flags; /* Let SCRUB trigger behavior in 947 * state code. Easier than tags */ 948 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 949 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 950 sa_family_t af; 951 u_int8_t proto; 952 u_int8_t tos; 953 }; 954 955 /* flags for RDR options */ 956 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 957 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 958 959 /* Reasons code for passing/dropping a packet */ 960 #define PFRES_MATCH 0 /* Explicit match of a rule */ 961 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 962 #define PFRES_FRAG 2 /* Dropping following fragment */ 963 #define PFRES_SHORT 3 /* Dropping short packet */ 964 #define PFRES_NORM 4 /* Dropping by normalizer */ 965 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 966 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 967 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 968 #define PFRES_IPOPTIONS 8 /* IP option */ 969 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 970 #define PFRES_BADSTATE 10 /* State mismatch */ 971 #define PFRES_STATEINS 11 /* State insertion failure */ 972 #define PFRES_MAXSTATES 12 /* State limit */ 973 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 974 #define PFRES_SYNPROXY 14 /* SYN proxy */ 975 #define PFRES_MAX 15 /* total+1 */ 976 977 #define PFRES_NAMES { \ 978 "match", \ 979 "bad-offset", \ 980 "fragment", \ 981 "short", \ 982 "normalize", \ 983 "memory", \ 984 "bad-timestamp", \ 985 "congestion", \ 986 "ip-option", \ 987 "proto-cksum", \ 988 "state-mismatch", \ 989 "state-insert", \ 990 "state-limit", \ 991 "src-limit", \ 992 "synproxy", \ 993 NULL \ 994 } 995 996 /* Counters for other things we want to keep track of */ 997 #define LCNT_STATES 0 /* states */ 998 #define LCNT_SRCSTATES 1 /* max-src-states */ 999 #define LCNT_SRCNODES 2 /* max-src-nodes */ 1000 #define LCNT_SRCCONN 3 /* max-src-conn */ 1001 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1002 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1003 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1004 #define LCNT_MAX 7 /* total+1 */ 1005 1006 #define LCNT_NAMES { \ 1007 "max states per rule", \ 1008 "max-src-states", \ 1009 "max-src-nodes", \ 1010 "max-src-conn", \ 1011 "max-src-conn-rate", \ 1012 "overload table insertion", \ 1013 "overload flush states", \ 1014 NULL \ 1015 } 1016 1017 /* UDP state enumeration */ 1018 #define PFUDPS_NO_TRAFFIC 0 1019 #define PFUDPS_SINGLE 1 1020 #define PFUDPS_MULTIPLE 2 1021 1022 #define PFUDPS_NSTATES 3 /* number of state levels */ 1023 1024 #define PFUDPS_NAMES { \ 1025 "NO_TRAFFIC", \ 1026 "SINGLE", \ 1027 "MULTIPLE", \ 1028 NULL \ 1029 } 1030 1031 /* Other protocol state enumeration */ 1032 #define PFOTHERS_NO_TRAFFIC 0 1033 #define PFOTHERS_SINGLE 1 1034 #define PFOTHERS_MULTIPLE 2 1035 1036 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1037 1038 #define PFOTHERS_NAMES { \ 1039 "NO_TRAFFIC", \ 1040 "SINGLE", \ 1041 "MULTIPLE", \ 1042 NULL \ 1043 } 1044 1045 #define FCNT_STATE_SEARCH 0 1046 #define FCNT_STATE_INSERT 1 1047 #define FCNT_STATE_REMOVALS 2 1048 #define FCNT_MAX 3 1049 1050 #define SCNT_SRC_NODE_SEARCH 0 1051 #define SCNT_SRC_NODE_INSERT 1 1052 #define SCNT_SRC_NODE_REMOVALS 2 1053 #define SCNT_MAX 3 1054 1055 #define ACTION_SET(a, x) \ 1056 do { \ 1057 if ((a) != NULL) \ 1058 *(a) = (x); \ 1059 } while (0) 1060 1061 #define REASON_SET(a, x) \ 1062 do { \ 1063 if ((a) != NULL) \ 1064 *(a) = (x); \ 1065 if (x < PFRES_MAX) \ 1066 pf_status.counters[x]++; \ 1067 } while (0) 1068 1069 struct pf_status { 1070 u_int64_t counters[PFRES_MAX]; 1071 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1072 u_int64_t fcounters[FCNT_MAX]; 1073 u_int64_t scounters[SCNT_MAX]; 1074 u_int64_t pcounters[2][2][3]; 1075 u_int64_t bcounters[2][2]; 1076 u_int64_t stateid; 1077 u_int32_t running; 1078 u_int32_t states; 1079 u_int32_t src_nodes; 1080 u_int32_t since; 1081 u_int32_t debug; 1082 u_int32_t hostid; 1083 char ifname[IFNAMSIZ]; 1084 }; 1085 1086 struct cbq_opts { 1087 u_int minburst; 1088 u_int maxburst; 1089 u_int pktsize; 1090 u_int maxpktsize; 1091 u_int ns_per_byte; 1092 u_int maxidle; 1093 int minidle; 1094 u_int offtime; 1095 int flags; 1096 }; 1097 1098 struct priq_opts { 1099 int flags; 1100 }; 1101 1102 struct hfsc_opts { 1103 /* real-time service curve */ 1104 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1105 u_int rtsc_d; /* the x-projection of m1 in msec */ 1106 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1107 /* link-sharing service curve */ 1108 u_int lssc_m1; 1109 u_int lssc_d; 1110 u_int lssc_m2; 1111 /* upper-limit service curve */ 1112 u_int ulsc_m1; 1113 u_int ulsc_d; 1114 u_int ulsc_m2; 1115 int flags; 1116 }; 1117 1118 struct pf_altq { 1119 char ifname[IFNAMSIZ]; 1120 1121 void *altq_disc; /* discipline-specific state */ 1122 TAILQ_ENTRY(pf_altq) entries; 1123 1124 /* scheduler spec */ 1125 u_int8_t scheduler; /* scheduler type */ 1126 u_int16_t tbrsize; /* tokenbucket regulator size */ 1127 u_int32_t ifbandwidth; /* interface bandwidth */ 1128 1129 /* queue spec */ 1130 char qname[PF_QNAME_SIZE]; /* queue name */ 1131 char parent[PF_QNAME_SIZE]; /* parent name */ 1132 u_int32_t parent_qid; /* parent queue id */ 1133 u_int32_t bandwidth; /* queue bandwidth */ 1134 u_int8_t priority; /* priority */ 1135 u_int16_t qlimit; /* queue size limit */ 1136 u_int16_t flags; /* misc flags */ 1137 union { 1138 struct cbq_opts cbq_opts; 1139 struct priq_opts priq_opts; 1140 struct hfsc_opts hfsc_opts; 1141 } pq_u; 1142 1143 u_int32_t qid; /* return value */ 1144 }; 1145 1146 struct pf_tag { 1147 u_int16_t tag; /* tag id */ 1148 }; 1149 1150 struct pf_tagname { 1151 TAILQ_ENTRY(pf_tagname) entries; 1152 char name[PF_TAG_NAME_SIZE]; 1153 u_int16_t tag; 1154 int ref; 1155 }; 1156 1157 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1158 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1159 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1160 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1161 1162 /* 1163 * ioctl parameter structures 1164 */ 1165 1166 struct pfioc_pooladdr { 1167 u_int32_t action; 1168 u_int32_t ticket; 1169 u_int32_t nr; 1170 u_int32_t r_num; 1171 u_int8_t r_action; 1172 u_int8_t r_last; 1173 u_int8_t af; 1174 char anchor[MAXPATHLEN]; 1175 struct pf_pooladdr addr; 1176 }; 1177 1178 struct pfioc_rule { 1179 u_int32_t action; 1180 u_int32_t ticket; 1181 u_int32_t pool_ticket; 1182 u_int32_t nr; 1183 char anchor[MAXPATHLEN]; 1184 char anchor_call[MAXPATHLEN]; 1185 struct pf_rule rule; 1186 }; 1187 1188 struct pfioc_natlook { 1189 struct pf_addr saddr; 1190 struct pf_addr daddr; 1191 struct pf_addr rsaddr; 1192 struct pf_addr rdaddr; 1193 u_int16_t sport; 1194 u_int16_t dport; 1195 u_int16_t rsport; 1196 u_int16_t rdport; 1197 sa_family_t af; 1198 u_int8_t proto; 1199 u_int8_t direction; 1200 }; 1201 1202 struct pfioc_state { 1203 u_int32_t nr; 1204 struct pf_state state; 1205 }; 1206 1207 struct pfioc_state_kill { 1208 /* XXX returns the number of states killed in psk_af */ 1209 sa_family_t psk_af; 1210 int psk_proto; 1211 struct pf_rule_addr psk_src; 1212 struct pf_rule_addr psk_dst; 1213 char psk_ifname[IFNAMSIZ]; 1214 }; 1215 1216 struct pfioc_states { 1217 int ps_len; 1218 union { 1219 caddr_t psu_buf; 1220 struct pf_state *psu_states; 1221 } ps_u; 1222 #define ps_buf ps_u.psu_buf 1223 #define ps_states ps_u.psu_states 1224 }; 1225 1226 struct pfioc_src_nodes { 1227 int psn_len; 1228 union { 1229 caddr_t psu_buf; 1230 struct pf_src_node *psu_src_nodes; 1231 } psn_u; 1232 #define psn_buf psn_u.psu_buf 1233 #define psn_src_nodes psn_u.psu_src_nodes 1234 }; 1235 1236 struct pfioc_if { 1237 char ifname[IFNAMSIZ]; 1238 }; 1239 1240 struct pfioc_tm { 1241 int timeout; 1242 int seconds; 1243 }; 1244 1245 struct pfioc_limit { 1246 int index; 1247 unsigned limit; 1248 }; 1249 1250 struct pfioc_altq { 1251 u_int32_t action; 1252 u_int32_t ticket; 1253 u_int32_t nr; 1254 struct pf_altq altq; 1255 }; 1256 1257 struct pfioc_qstats { 1258 u_int32_t ticket; 1259 u_int32_t nr; 1260 void *buf; 1261 int nbytes; 1262 u_int8_t scheduler; 1263 }; 1264 1265 struct pfioc_ruleset { 1266 u_int32_t nr; 1267 char path[MAXPATHLEN]; 1268 char name[PF_ANCHOR_NAME_SIZE]; 1269 }; 1270 1271 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1272 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1273 struct pfioc_trans { 1274 int size; /* number of elements */ 1275 int esize; /* size of each element in bytes */ 1276 struct pfioc_trans_e { 1277 int rs_num; 1278 char anchor[MAXPATHLEN]; 1279 u_int32_t ticket; 1280 } *array; 1281 }; 1282 1283 #define PFR_FLAG_ATOMIC 0x00000001 1284 #define PFR_FLAG_DUMMY 0x00000002 1285 #define PFR_FLAG_FEEDBACK 0x00000004 1286 #define PFR_FLAG_CLSTATS 0x00000008 1287 #define PFR_FLAG_ADDRSTOO 0x00000010 1288 #define PFR_FLAG_REPLACE 0x00000020 1289 #define PFR_FLAG_ALLRSETS 0x00000040 1290 #define PFR_FLAG_ALLMASK 0x0000007F 1291 #ifdef _KERNEL 1292 #define PFR_FLAG_USERIOCTL 0x10000000 1293 #endif 1294 1295 struct pfioc_table { 1296 struct pfr_table pfrio_table; 1297 void *pfrio_buffer; 1298 int pfrio_esize; 1299 int pfrio_size; 1300 int pfrio_size2; 1301 int pfrio_nadd; 1302 int pfrio_ndel; 1303 int pfrio_nchange; 1304 int pfrio_flags; 1305 u_int32_t pfrio_ticket; 1306 }; 1307 #define pfrio_exists pfrio_nadd 1308 #define pfrio_nzero pfrio_nadd 1309 #define pfrio_nmatch pfrio_nadd 1310 #define pfrio_naddr pfrio_size2 1311 #define pfrio_setflag pfrio_size2 1312 #define pfrio_clrflag pfrio_nadd 1313 1314 1315 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1316 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1317 #define PFI_FLAG_ALLMASK 0x0003 1318 1319 struct pfioc_iface { 1320 char pfiio_name[IFNAMSIZ]; 1321 void *pfiio_buffer; 1322 int pfiio_esize; 1323 int pfiio_size; 1324 int pfiio_nzero; 1325 int pfiio_flags; 1326 }; 1327 1328 1329 /* 1330 * ioctl operations 1331 */ 1332 1333 #define DIOCSTART _IO ('D', 1) 1334 #define DIOCSTOP _IO ('D', 2) 1335 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1336 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1337 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1338 /* XXX cut 8 - 17 */ 1339 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1340 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1341 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1342 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1343 #define DIOCCLRSTATUS _IO ('D', 22) 1344 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1345 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1346 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1347 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1348 /* XXX cut 26 - 28 */ 1349 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1350 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1351 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1352 #define DIOCCLRRULECTRS _IO ('D', 38) 1353 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1354 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1355 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1356 #define DIOCSTARTALTQ _IO ('D', 42) 1357 #define DIOCSTOPALTQ _IO ('D', 43) 1358 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1359 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1360 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1361 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1362 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1363 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1364 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1365 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1366 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1367 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1368 /* XXX cut 55 - 57 */ 1369 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1370 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1371 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1372 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1373 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1374 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1375 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1376 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1377 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1378 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1379 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1380 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1381 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1382 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1383 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1384 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1385 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1386 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1387 #define DIOCOSFPFLUSH _IO('D', 78) 1388 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1389 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1390 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1391 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1392 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1393 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1394 #define DIOCCLRSRCNODES _IO('D', 85) 1395 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1396 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1397 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1398 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1399 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1400 1401 #ifdef _KERNEL 1402 RB_HEAD(pf_src_tree, pf_src_node); 1403 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1404 extern struct pf_src_tree tree_src_tracking; 1405 1406 RB_HEAD(pf_state_tree_id, pf_state); 1407 RB_PROTOTYPE(pf_state_tree_id, pf_state, 1408 entry_id, pf_state_compare_id); 1409 extern struct pf_state_tree_id tree_id; 1410 extern struct pf_state_queue state_updates; 1411 1412 extern struct pf_anchor_global pf_anchors; 1413 extern struct pf_ruleset pf_main_ruleset; 1414 TAILQ_HEAD(pf_poolqueue, pf_pool); 1415 extern struct pf_poolqueue pf_pools[2]; 1416 TAILQ_HEAD(pf_altqqueue, pf_altq); 1417 extern struct pf_altqqueue pf_altqs[2]; 1418 extern struct pf_palist pf_pabuf; 1419 extern struct pfi_kif **pfi_index2kif; 1420 1421 extern u_int32_t ticket_altqs_active; 1422 extern u_int32_t ticket_altqs_inactive; 1423 extern int altqs_inactive_open; 1424 extern u_int32_t ticket_pabuf; 1425 extern struct pf_altqqueue *pf_altqs_active; 1426 extern struct pf_altqqueue *pf_altqs_inactive; 1427 extern struct pf_poolqueue *pf_pools_active; 1428 extern struct pf_poolqueue *pf_pools_inactive; 1429 extern int pf_tbladdr_setup(struct pf_ruleset *, 1430 struct pf_addr_wrap *); 1431 extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1432 extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1433 extern void pf_calc_skip_steps(struct pf_rulequeue *); 1434 extern struct pool pf_src_tree_pl, pf_rule_pl; 1435 extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1436 extern struct pool pf_state_scrub_pl; 1437 extern void pf_purge_timeout(void *); 1438 extern void pf_purge_expired_src_nodes(void); 1439 extern void pf_purge_expired_states(void); 1440 extern void pf_purge_expired_state(struct pf_state *); 1441 extern int pf_insert_state(struct pfi_kif *, 1442 struct pf_state *); 1443 extern int pf_insert_src_node(struct pf_src_node **, 1444 struct pf_rule *, struct pf_addr *, 1445 sa_family_t); 1446 void pf_src_tree_remove_state(struct pf_state *); 1447 extern struct pf_state *pf_find_state_byid(struct pf_state *); 1448 extern struct pf_state *pf_find_state_all(struct pf_state *key, 1449 u_int8_t tree, int *more); 1450 extern void pf_print_state(struct pf_state *); 1451 extern void pf_print_flags(u_int8_t); 1452 extern struct pf_anchor *pf_find_anchor(const char *); 1453 extern struct pf_ruleset *pf_find_ruleset(const char *); 1454 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 1455 extern void pf_remove_if_empty_ruleset( 1456 struct pf_ruleset *); 1457 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1458 u_int8_t); 1459 1460 extern struct ifnet *sync_ifp; 1461 extern struct pf_rule pf_default_rule; 1462 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1463 u_int8_t); 1464 void pf_rm_rule(struct pf_rulequeue *, 1465 struct pf_rule *); 1466 1467 #ifdef INET 1468 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *); 1469 #endif /* INET */ 1470 1471 #ifdef INET6 1472 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *); 1473 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1474 struct pf_addr *, struct pf_addr *, u_int8_t); 1475 void pf_addr_inc(struct pf_addr *, sa_family_t); 1476 #endif /* INET6 */ 1477 1478 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1479 sa_family_t); 1480 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1481 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1482 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1483 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1484 struct pf_addr *, sa_family_t); 1485 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1486 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1487 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1488 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1489 1490 void pf_normalize_init(void); 1491 #ifdef _LKM 1492 void pf_normalize_destroy(void); 1493 #endif 1494 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1495 struct pf_pdesc *); 1496 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1497 struct pf_pdesc *); 1498 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1499 struct pf_pdesc *); 1500 void pf_normalize_tcp_cleanup(struct pf_state *); 1501 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1502 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1503 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1504 u_short *, struct tcphdr *, struct pf_state *, 1505 struct pf_state_peer *, struct pf_state_peer *, int *); 1506 u_int32_t 1507 pf_state_expires(const struct pf_state *); 1508 void pf_purge_expired_fragments(void); 1509 int pf_routable(struct pf_addr *addr, sa_family_t af); 1510 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); 1511 void pfr_initialize(void); 1512 #ifdef _LKM 1513 void pfr_destroy(void); 1514 #endif 1515 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1516 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1517 u_int64_t, int, int, int); 1518 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1519 struct pf_addr **, struct pf_addr **, sa_family_t); 1520 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1521 struct pfr_ktable * 1522 pfr_attach_table(struct pf_ruleset *, char *); 1523 void pfr_detach_table(struct pfr_ktable *); 1524 int pfr_clr_tables(struct pfr_table *, int *, int); 1525 int pfr_add_tables(struct pfr_table *, int, int *, int); 1526 int pfr_del_tables(struct pfr_table *, int, int *, int); 1527 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1528 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1529 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1530 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1531 int pfr_clr_addrs(struct pfr_table *, int *, int); 1532 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1533 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1534 int); 1535 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1536 int); 1537 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1538 int *, int *, int *, int); 1539 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1540 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1541 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1542 int); 1543 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1544 int); 1545 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1546 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1547 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1548 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1549 int *, u_int32_t, int); 1550 1551 void pfi_initialize(void); 1552 #ifdef _LKM 1553 void pfi_destroy(void); 1554 #endif 1555 void pfi_attach_clone(struct if_clone *); 1556 void pfi_attach_ifnet(struct ifnet *); 1557 void pfi_detach_ifnet(struct ifnet *); 1558 struct pfi_kif *pfi_lookup_create(const char *); 1559 struct pfi_kif *pfi_lookup_if(const char *); 1560 int pfi_maybe_destroy(struct pfi_kif *); 1561 struct pfi_kif *pfi_attach_rule(const char *); 1562 void pfi_detach_rule(struct pfi_kif *); 1563 void pfi_attach_state(struct pfi_kif *); 1564 void pfi_detach_state(struct pfi_kif *); 1565 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1566 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1567 void pfi_dynaddr_remove(struct pf_addr_wrap *); 1568 void pfi_fill_oldstatus(struct pf_status *); 1569 int pfi_clr_istats(const char *, int *, int); 1570 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1571 int pfi_set_flags(const char *, int); 1572 int pfi_clear_flags(const char *, int); 1573 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1574 sa_family_t); 1575 1576 extern struct pfi_statehead pfi_statehead; 1577 1578 u_int16_t pf_tagname2tag(char *); 1579 void pf_tag2tagname(u_int16_t, char *); 1580 void pf_tag_ref(u_int16_t); 1581 void pf_tag_unref(u_int16_t); 1582 int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1583 u_int32_t pf_qname2qid(char *); 1584 void pf_qid2qname(u_int32_t, char *); 1585 void pf_qid_unref(u_int32_t); 1586 1587 extern struct pf_status pf_status; 1588 extern struct pool pf_frent_pl, pf_frag_pl; 1589 1590 struct pf_pool_limit { 1591 void *pp; 1592 unsigned limit; 1593 }; 1594 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1595 1596 #ifdef __NetBSD__ 1597 int pfil4_wrapper(void *, struct mbuf **, struct ifnet *, int); 1598 int pfil6_wrapper(void *, struct mbuf **, struct ifnet *, int); 1599 int pfil_ifnet_wrapper(void *, struct mbuf **, struct ifnet *, int); 1600 int pfil_ifaddr_wrapper(void *, struct mbuf **, struct ifnet *, int); 1601 1602 #endif 1603 1604 /* 1605 * misc compatibility stuffs 1606 */ 1607 #if !defined(PRIu32) 1608 #define PRIu32 "u" /* XXX */ 1609 #endif 1610 #if !defined(__OpenBSD__) 1611 #include <sys/kernel.h> /* mono_time */ 1612 static __inline void getmicrouptime(struct timeval *); 1613 static __inline void 1614 getmicrouptime(struct timeval *tvp) 1615 { 1616 int s; 1617 1618 s = splclock(); 1619 *tvp = mono_time; 1620 splx(s); 1621 } 1622 #define time_second time.tv_sec 1623 #define m_copym2 m_dup 1624 #define pool_allocator_oldnointr pool_allocator_nointr 1625 #endif 1626 #endif /* _KERNEL */ 1627 1628 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1629 int pf_osfp_add(struct pf_osfp_ioctl *); 1630 #ifdef _KERNEL 1631 struct pf_osfp_enlist * 1632 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1633 const struct tcphdr *); 1634 #endif /* _KERNEL */ 1635 struct pf_osfp_enlist * 1636 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1637 void pf_osfp_flush(void); 1638 int pf_osfp_get(struct pf_osfp_ioctl *); 1639 void pf_osfp_initialize(void); 1640 #ifdef _LKM 1641 void pf_osfp_destroy(void); 1642 #endif 1643 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1644 struct pf_os_fingerprint * 1645 pf_osfp_validate(void); 1646 1647 1648 #endif /* _NET_PFVAR_H_ */ 1649
Indexes created Mon Sep 29 21:09:56 GMT 2025