pfvar.h revision 1.9
1 /* $NetBSD: pfvar.h,v 1.9 2005/07/01 12:37:35 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 #endif 47 #include <netinet/tcp_fsm.h> 48 49 #ifdef __NetBSD__ 50 union sockaddr_union { 51 struct sockaddr sa; 52 struct sockaddr_in sin; 53 struct sockaddr_in6 sin6; 54 }; 55 #endif 56 57 struct ip; 58 59 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) 60 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) 61 62 enum { PF_INOUT, PF_IN, PF_OUT }; 63 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID }; 64 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, 65 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; 66 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, 67 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; 68 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, 69 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; 70 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; 71 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, 72 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, 73 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; 74 /* 75 * Note about PFTM_*: real indices into pf_rule.timeout[] come before 76 * PFTM_MAX, special cases afterwards. See pf_state_expires(). 77 */ 78 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, 79 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, 80 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, 81 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, 82 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, 83 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, 84 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, 85 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET }; 86 87 /* PFTM default values */ 88 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ 89 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ 90 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */ 91 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */ 92 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ 93 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ 94 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ 95 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ 96 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ 97 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ 98 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ 99 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ 100 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ 101 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ 102 #define PFTM_FRAG_VAL 30 /* Fragment expire */ 103 #define PFTM_INTERVAL_VAL 10 /* Expire interval */ 104 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ 105 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ 106 107 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; 108 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX }; 109 #define PF_POOL_IDMASK 0x0f 110 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, 111 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; 112 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, 113 PF_ADDR_TABLE, PF_ADDR_RTLABEL }; 114 #define PF_POOL_TYPEMASK 0x0f 115 #define PF_POOL_STICKYADDR 0x20 116 #define PF_WSCALE_FLAG 0x80 117 #define PF_WSCALE_MASK 0x0f 118 119 struct pf_addr { 120 union { 121 struct in_addr v4; 122 struct in6_addr v6; 123 u_int8_t addr8[16]; 124 u_int16_t addr16[8]; 125 u_int32_t addr32[4]; 126 } pfa; /* 128-bit address */ 127 #define v4 pfa.v4 128 #define v6 pfa.v6 129 #define addr8 pfa.addr8 130 #define addr16 pfa.addr16 131 #define addr32 pfa.addr32 132 }; 133 134 #define PF_TABLE_NAME_SIZE 32 135 136 #define PFI_AFLAG_NETWORK 0x01 137 #define PFI_AFLAG_BROADCAST 0x02 138 #define PFI_AFLAG_PEER 0x04 139 #define PFI_AFLAG_MODEMASK 0x07 140 #define PFI_AFLAG_NOALIAS 0x08 141 142 #ifndef RTLABEL_LEN 143 #define RTLABEL_LEN 32 144 #endif 145 146 struct pf_addr_wrap { 147 union { 148 struct { 149 struct pf_addr addr; 150 struct pf_addr mask; 151 } a; 152 char ifname[IFNAMSIZ]; 153 char tblname[PF_TABLE_NAME_SIZE]; 154 char rtlabelname[RTLABEL_LEN]; 155 u_int32_t rtlabel; 156 } v; 157 union { 158 struct pfi_dynaddr *dyn; 159 struct pfr_ktable *tbl; 160 int dyncnt; 161 int tblcnt; 162 } p; 163 u_int8_t type; /* PF_ADDR_* */ 164 u_int8_t iflags; /* PFI_AFLAG_* */ 165 }; 166 167 #ifdef __NetBSD__ 168 struct hook_desc { 169 TAILQ_ENTRY(hook_desc) hd_list; 170 void (*hd_fn)(void *); 171 void *hd_arg; 172 }; 173 TAILQ_HEAD(hook_desc_head, hook_desc); 174 #endif 175 176 #ifdef _KERNEL 177 178 struct pfi_dynaddr { 179 struct pf_addr pfid_addr4; 180 struct pf_addr pfid_mask4; 181 struct pf_addr pfid_addr6; 182 struct pf_addr pfid_mask6; 183 struct pfr_ktable *pfid_kt; 184 struct pfi_kif *pfid_kif; 185 void *pfid_hook_cookie; 186 int pfid_net; /* optional mask, or 128 */ 187 int pfid_acnt4; /* address count, IPv4 */ 188 int pfid_acnt6; /* address count, IPv6 */ 189 sa_family_t pfid_af; /* rule address family */ 190 u_int8_t pfid_iflags; /* PFI_AFLAG_* */ 191 }; 192 193 /* 194 * Address manipulation macros 195 */ 196 197 #ifdef INET 198 #ifndef INET6 199 #define PF_INET_ONLY 200 #endif /* ! INET6 */ 201 #endif /* INET */ 202 203 #ifdef INET6 204 #ifndef INET 205 #define PF_INET6_ONLY 206 #endif /* ! INET */ 207 #endif /* INET6 */ 208 209 #ifdef INET 210 #ifdef INET6 211 #define PF_INET_INET6 212 #endif /* INET6 */ 213 #endif /* INET */ 214 215 #else 216 217 #define PF_INET_INET6 218 219 #endif /* _KERNEL */ 220 221 /* Both IPv4 and IPv6 */ 222 #ifdef PF_INET_INET6 223 224 #define PF_AEQ(a, b, c) \ 225 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ 226 ((a)->addr32[3] == (b)->addr32[3] && \ 227 (a)->addr32[2] == (b)->addr32[2] && \ 228 (a)->addr32[1] == (b)->addr32[1] && \ 229 (a)->addr32[0] == (b)->addr32[0])) \ 230 231 #define PF_ANEQ(a, b, c) \ 232 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ 233 ((a)->addr32[3] != (b)->addr32[3] || \ 234 (a)->addr32[2] != (b)->addr32[2] || \ 235 (a)->addr32[1] != (b)->addr32[1] || \ 236 (a)->addr32[0] != (b)->addr32[0])) \ 237 238 #define PF_AZERO(a, c) \ 239 ((c == AF_INET && !(a)->addr32[0]) || \ 240 (!(a)->addr32[0] && !(a)->addr32[1] && \ 241 !(a)->addr32[2] && !(a)->addr32[3] )) \ 242 243 #define PF_MATCHA(n, a, m, b, f) \ 244 pf_match_addr(n, a, m, b, f) 245 246 #define PF_ACPY(a, b, f) \ 247 pf_addrcpy(a, b, f) 248 249 #define PF_AINC(a, f) \ 250 pf_addr_inc(a, f) 251 252 #define PF_POOLMASK(a, b, c, d, f) \ 253 pf_poolmask(a, b, c, d, f) 254 255 #else 256 257 /* Just IPv6 */ 258 259 #ifdef PF_INET6_ONLY 260 261 #define PF_AEQ(a, b, c) \ 262 ((a)->addr32[3] == (b)->addr32[3] && \ 263 (a)->addr32[2] == (b)->addr32[2] && \ 264 (a)->addr32[1] == (b)->addr32[1] && \ 265 (a)->addr32[0] == (b)->addr32[0]) \ 266 267 #define PF_ANEQ(a, b, c) \ 268 ((a)->addr32[3] != (b)->addr32[3] || \ 269 (a)->addr32[2] != (b)->addr32[2] || \ 270 (a)->addr32[1] != (b)->addr32[1] || \ 271 (a)->addr32[0] != (b)->addr32[0]) \ 272 273 #define PF_AZERO(a, c) \ 274 (!(a)->addr32[0] && \ 275 !(a)->addr32[1] && \ 276 !(a)->addr32[2] && \ 277 !(a)->addr32[3] ) \ 278 279 #define PF_MATCHA(n, a, m, b, f) \ 280 pf_match_addr(n, a, m, b, f) 281 282 #define PF_ACPY(a, b, f) \ 283 pf_addrcpy(a, b, f) 284 285 #define PF_AINC(a, f) \ 286 pf_addr_inc(a, f) 287 288 #define PF_POOLMASK(a, b, c, d, f) \ 289 pf_poolmask(a, b, c, d, f) 290 291 #else 292 293 /* Just IPv4 */ 294 #ifdef PF_INET_ONLY 295 296 #define PF_AEQ(a, b, c) \ 297 ((a)->addr32[0] == (b)->addr32[0]) 298 299 #define PF_ANEQ(a, b, c) \ 300 ((a)->addr32[0] != (b)->addr32[0]) 301 302 #define PF_AZERO(a, c) \ 303 (!(a)->addr32[0]) 304 305 #define PF_MATCHA(n, a, m, b, f) \ 306 pf_match_addr(n, a, m, b, f) 307 308 #define PF_ACPY(a, b, f) \ 309 (a)->v4.s_addr = (b)->v4.s_addr 310 311 #define PF_AINC(a, f) \ 312 do { \ 313 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ 314 } while (0) 315 316 #define PF_POOLMASK(a, b, c, d, f) \ 317 do { \ 318 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ 319 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ 320 } while (0) 321 322 #endif /* PF_INET_ONLY */ 323 #endif /* PF_INET6_ONLY */ 324 #endif /* PF_INET_INET6 */ 325 326 #define PF_MISMATCHAW(aw, x, af, neg) \ 327 ( \ 328 (((aw)->type == PF_ADDR_NOROUTE && \ 329 pf_routable((x), (af))) || \ 330 ((aw)->type == PF_ADDR_RTLABEL && \ 331 !pf_rtlabel_match((x), (af), (aw))) || \ 332 ((aw)->type == PF_ADDR_TABLE && \ 333 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ 334 ((aw)->type == PF_ADDR_DYNIFTL && \ 335 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ 336 ((aw)->type == PF_ADDR_ADDRMASK && \ 337 !PF_AZERO(&(aw)->v.a.mask, (af)) && \ 338 !PF_MATCHA(0, &(aw)->v.a.addr, \ 339 &(aw)->v.a.mask, (x), (af)))) != \ 340 (neg) \ 341 ) 342 343 struct pf_rule_uid { 344 uid_t uid[2]; 345 u_int8_t op; 346 }; 347 348 struct pf_rule_gid { 349 uid_t gid[2]; 350 u_int8_t op; 351 }; 352 353 struct pf_rule_addr { 354 struct pf_addr_wrap addr; 355 u_int16_t port[2]; 356 u_int8_t neg; 357 u_int8_t port_op; 358 }; 359 360 struct pf_pooladdr { 361 struct pf_addr_wrap addr; 362 TAILQ_ENTRY(pf_pooladdr) entries; 363 char ifname[IFNAMSIZ]; 364 struct pfi_kif *kif; 365 }; 366 367 TAILQ_HEAD(pf_palist, pf_pooladdr); 368 369 struct pf_poolhashkey { 370 union { 371 u_int8_t key8[16]; 372 u_int16_t key16[8]; 373 u_int32_t key32[4]; 374 } pfk; /* 128-bit hash key */ 375 #define key8 pfk.key8 376 #define key16 pfk.key16 377 #define key32 pfk.key32 378 }; 379 380 struct pf_pool { 381 struct pf_palist list; 382 struct pf_pooladdr *cur; 383 struct pf_poolhashkey key; 384 struct pf_addr counter; 385 int tblidx; 386 u_int16_t proxy_port[2]; 387 u_int8_t port_op; 388 u_int8_t opts; 389 }; 390 391 392 /* A packed Operating System description for fingerprinting */ 393 typedef u_int32_t pf_osfp_t; 394 #define PF_OSFP_ANY ((pf_osfp_t)0) 395 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) 396 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) 397 398 struct pf_osfp_entry { 399 SLIST_ENTRY(pf_osfp_entry) fp_entry; 400 pf_osfp_t fp_os; 401 int fp_enflags; 402 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ 403 #define PF_OSFP_GENERIC 0x002 /* generic signature */ 404 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ 405 #define PF_OSFP_LEN 32 406 char fp_class_nm[PF_OSFP_LEN]; 407 char fp_version_nm[PF_OSFP_LEN]; 408 char fp_subtype_nm[PF_OSFP_LEN]; 409 }; 410 #define PF_OSFP_ENTRY_EQ(a, b) \ 411 ((a)->fp_os == (b)->fp_os && \ 412 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ 413 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ 414 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) 415 416 /* handle pf_osfp_t packing */ 417 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ 418 #define _FP_UNUSED_BITS 1 419 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ 420 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ 421 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ 422 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ 423 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ 424 ((1 << _FP_CLASS_BITS) - 1); \ 425 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ 426 ((1 << _FP_VERSION_BITS) - 1);\ 427 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 428 } while(0) 429 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ 430 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ 431 + _FP_SUBTYPE_BITS); \ 432 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ 433 _FP_SUBTYPE_BITS; \ 434 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ 435 } while(0) 436 437 /* the fingerprint of an OSes TCP SYN packet */ 438 typedef u_int64_t pf_tcpopts_t; 439 struct pf_os_fingerprint { 440 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ 441 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 442 u_int16_t fp_wsize; /* TCP window size */ 443 u_int16_t fp_psize; /* ip->ip_len */ 444 u_int16_t fp_mss; /* TCP MSS */ 445 u_int16_t fp_flags; 446 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ 447 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ 448 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ 449 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ 450 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ 451 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ 452 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ 453 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ 454 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ 455 #define PF_OSFP_MSS 0x0200 /* TCP MSS */ 456 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ 457 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ 458 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ 459 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ 460 u_int8_t fp_optcnt; /* TCP option count */ 461 u_int8_t fp_wscale; /* TCP window scaling */ 462 u_int8_t fp_ttl; /* IPv4 TTL */ 463 #define PF_OSFP_MAXTTL_OFFSET 40 464 /* TCP options packing */ 465 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ 466 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ 467 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ 468 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ 469 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ 470 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ 471 #define PF_OSFP_MAX_OPTS \ 472 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ 473 / PF_OSFP_TCPOPT_BITS 474 475 SLIST_ENTRY(pf_os_fingerprint) fp_next; 476 }; 477 478 struct pf_osfp_ioctl { 479 struct pf_osfp_entry fp_os; 480 pf_tcpopts_t fp_tcpopts; /* packed TCP options */ 481 u_int16_t fp_wsize; /* TCP window size */ 482 u_int16_t fp_psize; /* ip->ip_len */ 483 u_int16_t fp_mss; /* TCP MSS */ 484 u_int16_t fp_flags; 485 u_int8_t fp_optcnt; /* TCP option count */ 486 u_int8_t fp_wscale; /* TCP window scaling */ 487 u_int8_t fp_ttl; /* IPv4 TTL */ 488 489 int fp_getnum; /* DIOCOSFPGET number */ 490 }; 491 492 493 union pf_rule_ptr { 494 struct pf_rule *ptr; 495 u_int32_t nr; 496 }; 497 498 #define PF_ANCHOR_NAME_SIZE 64 499 500 struct pf_rule { 501 struct pf_rule_addr src; 502 struct pf_rule_addr dst; 503 #define PF_SKIP_IFP 0 504 #define PF_SKIP_DIR 1 505 #define PF_SKIP_AF 2 506 #define PF_SKIP_PROTO 3 507 #define PF_SKIP_SRC_ADDR 4 508 #define PF_SKIP_SRC_PORT 5 509 #define PF_SKIP_DST_ADDR 6 510 #define PF_SKIP_DST_PORT 7 511 #define PF_SKIP_COUNT 8 512 union pf_rule_ptr skip[PF_SKIP_COUNT]; 513 #define PF_RULE_LABEL_SIZE 64 514 char label[PF_RULE_LABEL_SIZE]; 515 #define PF_QNAME_SIZE 16 516 char ifname[IFNAMSIZ]; 517 char qname[PF_QNAME_SIZE]; 518 char pqname[PF_QNAME_SIZE]; 519 #define PF_TAG_NAME_SIZE 16 520 char tagname[PF_TAG_NAME_SIZE]; 521 char match_tagname[PF_TAG_NAME_SIZE]; 522 523 char overload_tblname[PF_TABLE_NAME_SIZE]; 524 525 TAILQ_ENTRY(pf_rule) entries; 526 struct pf_pool rpool; 527 528 u_int64_t evaluations; 529 u_int64_t packets; 530 u_int64_t bytes; 531 532 struct pfi_kif *kif; 533 struct pf_anchor *anchor; 534 struct pfr_ktable *overload_tbl; 535 536 pf_osfp_t os_fingerprint; 537 538 u_int32_t timeout[PFTM_MAX]; 539 u_int32_t states; 540 u_int32_t max_states; 541 u_int32_t src_nodes; 542 u_int32_t max_src_nodes; 543 u_int32_t max_src_states; 544 u_int32_t max_src_conn; 545 struct { 546 u_int32_t limit; 547 u_int32_t seconds; 548 } max_src_conn_rate; 549 u_int32_t qid; 550 u_int32_t pqid; 551 u_int32_t rt_listid; 552 u_int32_t nr; 553 u_int32_t prob; 554 555 u_int16_t return_icmp; 556 u_int16_t return_icmp6; 557 u_int16_t max_mss; 558 u_int16_t tag; 559 u_int16_t match_tag; 560 561 struct pf_rule_uid uid; 562 struct pf_rule_gid gid; 563 564 u_int32_t rule_flag; 565 u_int8_t action; 566 u_int8_t direction; 567 u_int8_t log; 568 u_int8_t quick; 569 u_int8_t ifnot; 570 u_int8_t match_tag_not; 571 u_int8_t natpass; 572 573 #define PF_STATE_NORMAL 0x1 574 #define PF_STATE_MODULATE 0x2 575 #define PF_STATE_SYNPROXY 0x3 576 u_int8_t keep_state; 577 sa_family_t af; 578 u_int8_t proto; 579 u_int8_t type; 580 u_int8_t code; 581 u_int8_t flags; 582 u_int8_t flagset; 583 u_int8_t min_ttl; 584 u_int8_t allow_opts; 585 u_int8_t rt; 586 u_int8_t return_ttl; 587 u_int8_t tos; 588 u_int8_t anchor_relative; 589 u_int8_t anchor_wildcard; 590 591 #define PF_FLUSH 0x01 592 #define PF_FLUSH_GLOBAL 0x02 593 u_int8_t flush; 594 }; 595 596 /* rule flags */ 597 #define PFRULE_DROP 0x0000 598 #define PFRULE_RETURNRST 0x0001 599 #define PFRULE_FRAGMENT 0x0002 600 #define PFRULE_RETURNICMP 0x0004 601 #define PFRULE_RETURN 0x0008 602 #define PFRULE_NOSYNC 0x0010 603 #define PFRULE_SRCTRACK 0x0020 /* track source states */ 604 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ 605 606 /* scrub flags */ 607 #define PFRULE_NODF 0x0100 608 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ 609 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ 610 #define PFRULE_RANDOMID 0x0800 611 #define PFRULE_REASSEMBLE_TCP 0x1000 612 613 /* rule flags again */ 614 #define PFRULE_IFBOUND 0x00010000 /* if-bound */ 615 #define PFRULE_GRBOUND 0x00020000 /* group-bound */ 616 617 #define PFSTATE_HIWAT 10000 /* default state table size */ 618 619 620 struct pf_threshold { 621 u_int32_t limit; 622 #define PF_THRESHOLD_MULT 1000 623 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT 624 u_int32_t seconds; 625 u_int32_t count; 626 u_int32_t last; 627 }; 628 629 struct pf_src_node { 630 RB_ENTRY(pf_src_node) entry; 631 struct pf_addr addr; 632 struct pf_addr raddr; 633 union pf_rule_ptr rule; 634 struct pfi_kif *kif; 635 u_int32_t bytes; 636 u_int32_t packets; 637 u_int32_t states; 638 u_int32_t conn; 639 struct pf_threshold conn_rate; 640 u_int32_t creation; 641 u_int32_t expire; 642 sa_family_t af; 643 u_int8_t ruletype; 644 }; 645 646 #define PFSNODE_HIWAT 10000 /* default source node table size */ 647 648 struct pf_state_scrub { 649 struct timeval pfss_last; /* time received last packet */ 650 u_int32_t pfss_tsecr; /* last echoed timestamp */ 651 u_int32_t pfss_tsval; /* largest timestamp */ 652 u_int32_t pfss_tsval0; /* original timestamp */ 653 u_int16_t pfss_flags; 654 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ 655 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ 656 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ 657 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ 658 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ 659 u_int8_t pfss_ttl; /* stashed TTL */ 660 u_int8_t pad; 661 u_int32_t pfss_ts_mod; /* timestamp modulation */ 662 }; 663 664 struct pf_state_host { 665 struct pf_addr addr; 666 u_int16_t port; 667 u_int16_t pad; 668 }; 669 670 struct pf_state_peer { 671 u_int32_t seqlo; /* Max sequence number sent */ 672 u_int32_t seqhi; /* Max the other end ACKd + win */ 673 u_int32_t seqdiff; /* Sequence number modulator */ 674 u_int16_t max_win; /* largest window (pre scaling) */ 675 u_int8_t state; /* active state level */ 676 u_int8_t wscale; /* window scaling factor */ 677 u_int16_t mss; /* Maximum segment size option */ 678 struct pf_state_scrub *scrub; /* state is scrubbed */ 679 }; 680 681 TAILQ_HEAD(pf_state_queue, pf_state); 682 683 struct pf_state { 684 u_int64_t id; 685 union { 686 struct { 687 RB_ENTRY(pf_state) entry_lan_ext; 688 RB_ENTRY(pf_state) entry_ext_gwy; 689 RB_ENTRY(pf_state) entry_id; 690 TAILQ_ENTRY(pf_state) entry_updates; 691 struct pfi_kif *kif; 692 } s; 693 char ifname[IFNAMSIZ]; 694 } u; 695 struct pf_state_host lan; 696 struct pf_state_host gwy; 697 struct pf_state_host ext; 698 struct pf_state_peer src; 699 struct pf_state_peer dst; 700 union pf_rule_ptr rule; 701 union pf_rule_ptr anchor; 702 union pf_rule_ptr nat_rule; 703 struct pf_addr rt_addr; 704 struct pfi_kif *rt_kif; 705 struct pf_src_node *src_node; 706 struct pf_src_node *nat_src_node; 707 u_int32_t creation; 708 u_int32_t expire; 709 u_int32_t pfsync_time; 710 u_int32_t packets[2]; 711 u_int32_t bytes[2]; 712 u_int32_t creatorid; 713 u_int16_t tag; 714 sa_family_t af; 715 u_int8_t proto; 716 u_int8_t direction; 717 u_int8_t log; 718 u_int8_t allow_opts; 719 u_int8_t timeout; 720 u_int8_t sync_flags; 721 #define PFSTATE_NOSYNC 0x01 722 #define PFSTATE_FROMSYNC 0x02 723 #define PFSTATE_STALE 0x04 724 u_int8_t pad; 725 }; 726 727 TAILQ_HEAD(pf_rulequeue, pf_rule); 728 729 struct pf_anchor; 730 731 struct pf_ruleset { 732 struct { 733 struct pf_rulequeue queues[2]; 734 struct { 735 struct pf_rulequeue *ptr; 736 u_int32_t ticket; 737 int open; 738 } active, inactive; 739 } rules[PF_RULESET_MAX]; 740 struct pf_anchor *anchor; 741 u_int32_t tticket; 742 int tables; 743 int topen; 744 }; 745 746 RB_HEAD(pf_anchor_global, pf_anchor); 747 RB_HEAD(pf_anchor_node, pf_anchor); 748 struct pf_anchor { 749 RB_ENTRY(pf_anchor) entry_global; 750 RB_ENTRY(pf_anchor) entry_node; 751 struct pf_anchor *parent; 752 struct pf_anchor_node children; 753 char name[PF_ANCHOR_NAME_SIZE]; 754 char path[MAXPATHLEN]; 755 struct pf_ruleset ruleset; 756 int refcnt; /* anchor rules */ 757 }; 758 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); 759 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); 760 761 #define PF_RESERVED_ANCHOR "_pf" 762 763 #define PFR_TFLAG_PERSIST 0x00000001 764 #define PFR_TFLAG_CONST 0x00000002 765 #define PFR_TFLAG_ACTIVE 0x00000004 766 #define PFR_TFLAG_INACTIVE 0x00000008 767 #define PFR_TFLAG_REFERENCED 0x00000010 768 #define PFR_TFLAG_REFDANCHOR 0x00000020 769 #define PFR_TFLAG_USRMASK 0x00000003 770 #define PFR_TFLAG_SETMASK 0x0000003C 771 #define PFR_TFLAG_ALLMASK 0x0000003F 772 773 struct pfr_table { 774 char pfrt_anchor[MAXPATHLEN]; 775 char pfrt_name[PF_TABLE_NAME_SIZE]; 776 u_int32_t pfrt_flags; 777 u_int8_t pfrt_fback; 778 }; 779 780 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, 781 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, 782 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; 783 784 struct pfr_addr { 785 union { 786 struct in_addr _pfra_ip4addr; 787 struct in6_addr _pfra_ip6addr; 788 } pfra_u; 789 u_int8_t pfra_af; 790 u_int8_t pfra_net; 791 u_int8_t pfra_not; 792 u_int8_t pfra_fback; 793 }; 794 #define pfra_ip4addr pfra_u._pfra_ip4addr 795 #define pfra_ip6addr pfra_u._pfra_ip6addr 796 797 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; 798 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; 799 #define PFR_OP_XPASS PFR_OP_ADDR_MAX 800 801 struct pfr_astats { 802 struct pfr_addr pfras_a; 803 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 804 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 805 long pfras_tzero; 806 }; 807 808 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; 809 810 struct pfr_tstats { 811 struct pfr_table pfrts_t; 812 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 813 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; 814 u_int64_t pfrts_match; 815 u_int64_t pfrts_nomatch; 816 long pfrts_tzero; 817 int pfrts_cnt; 818 int pfrts_refcnt[PFR_REFCNT_MAX]; 819 }; 820 #define pfrts_name pfrts_t.pfrt_name 821 #define pfrts_flags pfrts_t.pfrt_flags 822 823 SLIST_HEAD(pfr_kentryworkq, pfr_kentry); 824 struct pfr_kentry { 825 struct radix_node pfrke_node[2]; 826 union sockaddr_union pfrke_sa; 827 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 828 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; 829 SLIST_ENTRY(pfr_kentry) pfrke_workq; 830 long pfrke_tzero; 831 u_int8_t pfrke_af; 832 u_int8_t pfrke_net; 833 u_int8_t pfrke_not; 834 u_int8_t pfrke_mark; 835 u_int8_t pfrke_intrpool; 836 }; 837 838 SLIST_HEAD(pfr_ktableworkq, pfr_ktable); 839 RB_HEAD(pfr_ktablehead, pfr_ktable); 840 struct pfr_ktable { 841 struct pfr_tstats pfrkt_ts; 842 RB_ENTRY(pfr_ktable) pfrkt_tree; 843 SLIST_ENTRY(pfr_ktable) pfrkt_workq; 844 struct radix_node_head *pfrkt_ip4; 845 struct radix_node_head *pfrkt_ip6; 846 struct pfr_ktable *pfrkt_shadow; 847 struct pfr_ktable *pfrkt_root; 848 struct pf_ruleset *pfrkt_rs; 849 long pfrkt_larg; 850 int pfrkt_nflags; 851 }; 852 #define pfrkt_t pfrkt_ts.pfrts_t 853 #define pfrkt_name pfrkt_t.pfrt_name 854 #define pfrkt_anchor pfrkt_t.pfrt_anchor 855 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset 856 #define pfrkt_flags pfrkt_t.pfrt_flags 857 #define pfrkt_cnt pfrkt_ts.pfrts_cnt 858 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt 859 #define pfrkt_packets pfrkt_ts.pfrts_packets 860 #define pfrkt_bytes pfrkt_ts.pfrts_bytes 861 #define pfrkt_match pfrkt_ts.pfrts_match 862 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch 863 #define pfrkt_tzero pfrkt_ts.pfrts_tzero 864 865 RB_HEAD(pf_state_tree_lan_ext, pf_state); 866 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state, 867 u.s.entry_lan_ext, pf_state_compare_lan_ext) 868 869 RB_HEAD(pf_state_tree_ext_gwy, pf_state); 870 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state, 871 u.s.entry_ext_gwy, pf_state_compare_ext_gwy) 872 873 struct pfi_if { 874 char pfif_name[IFNAMSIZ]; 875 u_int64_t pfif_packets[2][2][2]; 876 u_int64_t pfif_bytes[2][2][2]; 877 u_int64_t pfif_addcnt; 878 u_int64_t pfif_delcnt; 879 long pfif_tzero; 880 int pfif_states; 881 int pfif_rules; 882 int pfif_flags; 883 }; 884 885 TAILQ_HEAD(pfi_grouphead, pfi_kif); 886 TAILQ_HEAD(pfi_statehead, pfi_kif); 887 RB_HEAD(pfi_ifhead, pfi_kif); 888 struct pfi_kif { 889 struct pfi_if pfik_if; 890 RB_ENTRY(pfi_kif) pfik_tree; 891 struct pf_state_tree_lan_ext pfik_lan_ext; 892 struct pf_state_tree_ext_gwy pfik_ext_gwy; 893 struct pfi_grouphead pfik_grouphead; 894 TAILQ_ENTRY(pfi_kif) pfik_instances; 895 TAILQ_ENTRY(pfi_kif) pfik_w_states; 896 struct hook_desc_head *pfik_ah_head; 897 void *pfik_ah_cookie; 898 struct pfi_kif *pfik_parent; 899 struct ifnet *pfik_ifp; 900 int pfik_states; 901 int pfik_rules; 902 #ifdef __NetBSD__ 903 struct hook_desc_head pfik_ifaddrhooks; 904 #endif 905 }; 906 #define pfik_name pfik_if.pfif_name 907 #define pfik_packets pfik_if.pfif_packets 908 #define pfik_bytes pfik_if.pfif_bytes 909 #define pfik_tzero pfik_if.pfif_tzero 910 #define pfik_flags pfik_if.pfif_flags 911 #define pfik_addcnt pfik_if.pfif_addcnt 912 #define pfik_delcnt pfik_if.pfif_delcnt 913 #define pfik_states pfik_if.pfif_states 914 #define pfik_rules pfik_if.pfif_rules 915 916 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */ 917 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */ 918 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */ 919 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */ 920 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */ 921 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ 922 #define PFI_IFLAG_SETABLE_MASK 0x0100 /* setable via DIOC{SET,CLR}IFFLAG */ 923 924 struct pf_pdesc { 925 u_int64_t tot_len; /* Make Mickey money */ 926 union { 927 struct tcphdr *tcp; 928 struct udphdr *udp; 929 struct icmp *icmp; 930 #ifdef INET6 931 struct icmp6_hdr *icmp6; 932 #endif /* INET6 */ 933 void *any; 934 } hdr; 935 struct pf_addr baddr; /* address before translation */ 936 struct pf_addr naddr; /* address after translation */ 937 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ 938 struct pf_addr *src; 939 struct pf_addr *dst; 940 struct ether_header 941 *eh; 942 u_int16_t *ip_sum; 943 u_int32_t p_len; /* total length of payload */ 944 u_int16_t flags; /* Let SCRUB trigger behavior in 945 * state code. Easier than tags */ 946 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ 947 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ 948 sa_family_t af; 949 u_int8_t proto; 950 u_int8_t tos; 951 }; 952 953 /* flags for RDR options */ 954 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ 955 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ 956 957 /* Reasons code for passing/dropping a packet */ 958 #define PFRES_MATCH 0 /* Explicit match of a rule */ 959 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ 960 #define PFRES_FRAG 2 /* Dropping following fragment */ 961 #define PFRES_SHORT 3 /* Dropping short packet */ 962 #define PFRES_NORM 4 /* Dropping by normalizer */ 963 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ 964 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ 965 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ 966 #define PFRES_IPOPTIONS 8 /* IP option */ 967 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ 968 #define PFRES_BADSTATE 10 /* State mismatch */ 969 #define PFRES_STATEINS 11 /* State insertion failure */ 970 #define PFRES_MAXSTATES 12 /* State limit */ 971 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ 972 #define PFRES_SYNPROXY 14 /* SYN proxy */ 973 #define PFRES_MAX 15 /* total+1 */ 974 975 #define PFRES_NAMES { \ 976 "match", \ 977 "bad-offset", \ 978 "fragment", \ 979 "short", \ 980 "normalize", \ 981 "memory", \ 982 "bad-timestamp", \ 983 "congestion", \ 984 "ip-option", \ 985 "proto-cksum", \ 986 "state-mismatch", \ 987 "state-insert", \ 988 "state-limit", \ 989 "src-limit", \ 990 "synproxy", \ 991 NULL \ 992 } 993 994 /* Counters for other things we want to keep track of */ 995 #define LCNT_STATES 0 /* states */ 996 #define LCNT_SRCSTATES 1 /* max-src-states */ 997 #define LCNT_SRCNODES 2 /* max-src-nodes */ 998 #define LCNT_SRCCONN 3 /* max-src-conn */ 999 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ 1000 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ 1001 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ 1002 #define LCNT_MAX 7 /* total+1 */ 1003 1004 #define LCNT_NAMES { \ 1005 "max states per rule", \ 1006 "max-src-states", \ 1007 "max-src-nodes", \ 1008 "max-src-conn", \ 1009 "max-src-conn-rate", \ 1010 "overload table insertion", \ 1011 "overload flush states", \ 1012 NULL \ 1013 } 1014 1015 /* UDP state enumeration */ 1016 #define PFUDPS_NO_TRAFFIC 0 1017 #define PFUDPS_SINGLE 1 1018 #define PFUDPS_MULTIPLE 2 1019 1020 #define PFUDPS_NSTATES 3 /* number of state levels */ 1021 1022 #define PFUDPS_NAMES { \ 1023 "NO_TRAFFIC", \ 1024 "SINGLE", \ 1025 "MULTIPLE", \ 1026 NULL \ 1027 } 1028 1029 /* Other protocol state enumeration */ 1030 #define PFOTHERS_NO_TRAFFIC 0 1031 #define PFOTHERS_SINGLE 1 1032 #define PFOTHERS_MULTIPLE 2 1033 1034 #define PFOTHERS_NSTATES 3 /* number of state levels */ 1035 1036 #define PFOTHERS_NAMES { \ 1037 "NO_TRAFFIC", \ 1038 "SINGLE", \ 1039 "MULTIPLE", \ 1040 NULL \ 1041 } 1042 1043 #define FCNT_STATE_SEARCH 0 1044 #define FCNT_STATE_INSERT 1 1045 #define FCNT_STATE_REMOVALS 2 1046 #define FCNT_MAX 3 1047 1048 #define SCNT_SRC_NODE_SEARCH 0 1049 #define SCNT_SRC_NODE_INSERT 1 1050 #define SCNT_SRC_NODE_REMOVALS 2 1051 #define SCNT_MAX 3 1052 1053 #define ACTION_SET(a, x) \ 1054 do { \ 1055 if ((a) != NULL) \ 1056 *(a) = (x); \ 1057 } while (0) 1058 1059 #define REASON_SET(a, x) \ 1060 do { \ 1061 if ((a) != NULL) \ 1062 *(a) = (x); \ 1063 if (x < PFRES_MAX) \ 1064 pf_status.counters[x]++; \ 1065 } while (0) 1066 1067 struct pf_status { 1068 u_int64_t counters[PFRES_MAX]; 1069 u_int64_t lcounters[LCNT_MAX]; /* limit counters */ 1070 u_int64_t fcounters[FCNT_MAX]; 1071 u_int64_t scounters[SCNT_MAX]; 1072 u_int64_t pcounters[2][2][3]; 1073 u_int64_t bcounters[2][2]; 1074 u_int64_t stateid; 1075 u_int32_t running; 1076 u_int32_t states; 1077 u_int32_t src_nodes; 1078 u_int32_t since; 1079 u_int32_t debug; 1080 u_int32_t hostid; 1081 char ifname[IFNAMSIZ]; 1082 }; 1083 1084 struct cbq_opts { 1085 u_int minburst; 1086 u_int maxburst; 1087 u_int pktsize; 1088 u_int maxpktsize; 1089 u_int ns_per_byte; 1090 u_int maxidle; 1091 int minidle; 1092 u_int offtime; 1093 int flags; 1094 }; 1095 1096 struct priq_opts { 1097 int flags; 1098 }; 1099 1100 struct hfsc_opts { 1101 /* real-time service curve */ 1102 u_int rtsc_m1; /* slope of the 1st segment in bps */ 1103 u_int rtsc_d; /* the x-projection of m1 in msec */ 1104 u_int rtsc_m2; /* slope of the 2nd segment in bps */ 1105 /* link-sharing service curve */ 1106 u_int lssc_m1; 1107 u_int lssc_d; 1108 u_int lssc_m2; 1109 /* upper-limit service curve */ 1110 u_int ulsc_m1; 1111 u_int ulsc_d; 1112 u_int ulsc_m2; 1113 int flags; 1114 }; 1115 1116 struct pf_altq { 1117 char ifname[IFNAMSIZ]; 1118 1119 void *altq_disc; /* discipline-specific state */ 1120 TAILQ_ENTRY(pf_altq) entries; 1121 1122 /* scheduler spec */ 1123 u_int8_t scheduler; /* scheduler type */ 1124 u_int16_t tbrsize; /* tokenbucket regulator size */ 1125 u_int32_t ifbandwidth; /* interface bandwidth */ 1126 1127 /* queue spec */ 1128 char qname[PF_QNAME_SIZE]; /* queue name */ 1129 char parent[PF_QNAME_SIZE]; /* parent name */ 1130 u_int32_t parent_qid; /* parent queue id */ 1131 u_int32_t bandwidth; /* queue bandwidth */ 1132 u_int8_t priority; /* priority */ 1133 u_int16_t qlimit; /* queue size limit */ 1134 u_int16_t flags; /* misc flags */ 1135 union { 1136 struct cbq_opts cbq_opts; 1137 struct priq_opts priq_opts; 1138 struct hfsc_opts hfsc_opts; 1139 } pq_u; 1140 1141 u_int32_t qid; /* return value */ 1142 }; 1143 1144 struct pf_tag { 1145 u_int16_t tag; /* tag id */ 1146 }; 1147 1148 struct pf_tagname { 1149 TAILQ_ENTRY(pf_tagname) entries; 1150 char name[PF_TAG_NAME_SIZE]; 1151 u_int16_t tag; 1152 int ref; 1153 }; 1154 1155 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ 1156 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ 1157 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ 1158 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ 1159 1160 /* 1161 * ioctl parameter structures 1162 */ 1163 1164 struct pfioc_pooladdr { 1165 u_int32_t action; 1166 u_int32_t ticket; 1167 u_int32_t nr; 1168 u_int32_t r_num; 1169 u_int8_t r_action; 1170 u_int8_t r_last; 1171 u_int8_t af; 1172 char anchor[MAXPATHLEN]; 1173 struct pf_pooladdr addr; 1174 }; 1175 1176 struct pfioc_rule { 1177 u_int32_t action; 1178 u_int32_t ticket; 1179 u_int32_t pool_ticket; 1180 u_int32_t nr; 1181 char anchor[MAXPATHLEN]; 1182 char anchor_call[MAXPATHLEN]; 1183 struct pf_rule rule; 1184 }; 1185 1186 struct pfioc_natlook { 1187 struct pf_addr saddr; 1188 struct pf_addr daddr; 1189 struct pf_addr rsaddr; 1190 struct pf_addr rdaddr; 1191 u_int16_t sport; 1192 u_int16_t dport; 1193 u_int16_t rsport; 1194 u_int16_t rdport; 1195 sa_family_t af; 1196 u_int8_t proto; 1197 u_int8_t direction; 1198 }; 1199 1200 struct pfioc_state { 1201 u_int32_t nr; 1202 struct pf_state state; 1203 }; 1204 1205 struct pfioc_state_kill { 1206 /* XXX returns the number of states killed in psk_af */ 1207 sa_family_t psk_af; 1208 int psk_proto; 1209 struct pf_rule_addr psk_src; 1210 struct pf_rule_addr psk_dst; 1211 char psk_ifname[IFNAMSIZ]; 1212 }; 1213 1214 struct pfioc_states { 1215 int ps_len; 1216 union { 1217 caddr_t psu_buf; 1218 struct pf_state *psu_states; 1219 } ps_u; 1220 #define ps_buf ps_u.psu_buf 1221 #define ps_states ps_u.psu_states 1222 }; 1223 1224 struct pfioc_src_nodes { 1225 int psn_len; 1226 union { 1227 caddr_t psu_buf; 1228 struct pf_src_node *psu_src_nodes; 1229 } psn_u; 1230 #define psn_buf psn_u.psu_buf 1231 #define psn_src_nodes psn_u.psu_src_nodes 1232 }; 1233 1234 struct pfioc_if { 1235 char ifname[IFNAMSIZ]; 1236 }; 1237 1238 struct pfioc_tm { 1239 int timeout; 1240 int seconds; 1241 }; 1242 1243 struct pfioc_limit { 1244 int index; 1245 unsigned limit; 1246 }; 1247 1248 struct pfioc_altq { 1249 u_int32_t action; 1250 u_int32_t ticket; 1251 u_int32_t nr; 1252 struct pf_altq altq; 1253 }; 1254 1255 struct pfioc_qstats { 1256 u_int32_t ticket; 1257 u_int32_t nr; 1258 void *buf; 1259 int nbytes; 1260 u_int8_t scheduler; 1261 }; 1262 1263 struct pfioc_ruleset { 1264 u_int32_t nr; 1265 char path[MAXPATHLEN]; 1266 char name[PF_ANCHOR_NAME_SIZE]; 1267 }; 1268 1269 #define PF_RULESET_ALTQ (PF_RULESET_MAX) 1270 #define PF_RULESET_TABLE (PF_RULESET_MAX+1) 1271 struct pfioc_trans { 1272 int size; /* number of elements */ 1273 int esize; /* size of each element in bytes */ 1274 struct pfioc_trans_e { 1275 int rs_num; 1276 char anchor[MAXPATHLEN]; 1277 u_int32_t ticket; 1278 } *array; 1279 }; 1280 1281 #define PFR_FLAG_ATOMIC 0x00000001 1282 #define PFR_FLAG_DUMMY 0x00000002 1283 #define PFR_FLAG_FEEDBACK 0x00000004 1284 #define PFR_FLAG_CLSTATS 0x00000008 1285 #define PFR_FLAG_ADDRSTOO 0x00000010 1286 #define PFR_FLAG_REPLACE 0x00000020 1287 #define PFR_FLAG_ALLRSETS 0x00000040 1288 #define PFR_FLAG_ALLMASK 0x0000007F 1289 #ifdef _KERNEL 1290 #define PFR_FLAG_USERIOCTL 0x10000000 1291 #endif 1292 1293 struct pfioc_table { 1294 struct pfr_table pfrio_table; 1295 void *pfrio_buffer; 1296 int pfrio_esize; 1297 int pfrio_size; 1298 int pfrio_size2; 1299 int pfrio_nadd; 1300 int pfrio_ndel; 1301 int pfrio_nchange; 1302 int pfrio_flags; 1303 u_int32_t pfrio_ticket; 1304 }; 1305 #define pfrio_exists pfrio_nadd 1306 #define pfrio_nzero pfrio_nadd 1307 #define pfrio_nmatch pfrio_nadd 1308 #define pfrio_naddr pfrio_size2 1309 #define pfrio_setflag pfrio_size2 1310 #define pfrio_clrflag pfrio_nadd 1311 1312 1313 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */ 1314 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */ 1315 #define PFI_FLAG_ALLMASK 0x0003 1316 1317 struct pfioc_iface { 1318 char pfiio_name[IFNAMSIZ]; 1319 void *pfiio_buffer; 1320 int pfiio_esize; 1321 int pfiio_size; 1322 int pfiio_nzero; 1323 int pfiio_flags; 1324 }; 1325 1326 1327 /* 1328 * ioctl operations 1329 */ 1330 1331 #define DIOCSTART _IO ('D', 1) 1332 #define DIOCSTOP _IO ('D', 2) 1333 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) 1334 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) 1335 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) 1336 /* XXX cut 8 - 17 */ 1337 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) 1338 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) 1339 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) 1340 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) 1341 #define DIOCCLRSTATUS _IO ('D', 22) 1342 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) 1343 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) 1344 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) 1345 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) 1346 /* XXX cut 26 - 28 */ 1347 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) 1348 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) 1349 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) 1350 #define DIOCCLRRULECTRS _IO ('D', 38) 1351 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) 1352 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) 1353 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) 1354 #define DIOCSTARTALTQ _IO ('D', 42) 1355 #define DIOCSTOPALTQ _IO ('D', 43) 1356 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) 1357 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) 1358 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) 1359 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) 1360 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) 1361 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) 1362 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) 1363 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) 1364 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) 1365 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) 1366 /* XXX cut 55 - 57 */ 1367 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) 1368 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) 1369 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) 1370 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) 1371 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) 1372 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) 1373 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) 1374 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) 1375 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) 1376 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) 1377 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) 1378 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) 1379 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) 1380 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) 1381 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) 1382 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) 1383 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) 1384 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) 1385 #define DIOCOSFPFLUSH _IO('D', 78) 1386 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) 1387 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) 1388 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) 1389 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) 1390 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) 1391 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) 1392 #define DIOCCLRSRCNODES _IO('D', 85) 1393 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) 1394 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) 1395 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface) 1396 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) 1397 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) 1398 1399 #ifdef _KERNEL 1400 RB_HEAD(pf_src_tree, pf_src_node); 1401 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); 1402 extern struct pf_src_tree tree_src_tracking; 1403 1404 RB_HEAD(pf_state_tree_id, pf_state); 1405 RB_PROTOTYPE(pf_state_tree_id, pf_state, 1406 entry_id, pf_state_compare_id); 1407 extern struct pf_state_tree_id tree_id; 1408 extern struct pf_state_queue state_updates; 1409 1410 extern struct pf_anchor_global pf_anchors; 1411 extern struct pf_ruleset pf_main_ruleset; 1412 TAILQ_HEAD(pf_poolqueue, pf_pool); 1413 extern struct pf_poolqueue pf_pools[2]; 1414 TAILQ_HEAD(pf_altqqueue, pf_altq); 1415 extern struct pf_altqqueue pf_altqs[2]; 1416 extern struct pf_palist pf_pabuf; 1417 extern struct pfi_kif **pfi_index2kif; 1418 1419 extern u_int32_t ticket_altqs_active; 1420 extern u_int32_t ticket_altqs_inactive; 1421 extern int altqs_inactive_open; 1422 extern u_int32_t ticket_pabuf; 1423 extern struct pf_altqqueue *pf_altqs_active; 1424 extern struct pf_altqqueue *pf_altqs_inactive; 1425 extern struct pf_poolqueue *pf_pools_active; 1426 extern struct pf_poolqueue *pf_pools_inactive; 1427 extern int pf_tbladdr_setup(struct pf_ruleset *, 1428 struct pf_addr_wrap *); 1429 extern void pf_tbladdr_remove(struct pf_addr_wrap *); 1430 extern void pf_tbladdr_copyout(struct pf_addr_wrap *); 1431 extern void pf_calc_skip_steps(struct pf_rulequeue *); 1432 extern struct pool pf_src_tree_pl, pf_rule_pl; 1433 extern struct pool pf_state_pl, pf_altq_pl, pf_pooladdr_pl; 1434 extern struct pool pf_state_scrub_pl; 1435 extern void pf_purge_timeout(void *); 1436 extern void pf_purge_expired_src_nodes(void); 1437 extern void pf_purge_expired_states(void); 1438 extern void pf_purge_expired_state(struct pf_state *); 1439 extern int pf_insert_state(struct pfi_kif *, 1440 struct pf_state *); 1441 extern int pf_insert_src_node(struct pf_src_node **, 1442 struct pf_rule *, struct pf_addr *, 1443 sa_family_t); 1444 void pf_src_tree_remove_state(struct pf_state *); 1445 extern struct pf_state *pf_find_state_byid(struct pf_state *); 1446 extern struct pf_state *pf_find_state_all(struct pf_state *key, 1447 u_int8_t tree, int *more); 1448 extern void pf_print_state(struct pf_state *); 1449 extern void pf_print_flags(u_int8_t); 1450 extern struct pf_anchor *pf_find_anchor(const char *); 1451 extern struct pf_ruleset *pf_find_ruleset(const char *); 1452 extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); 1453 extern void pf_remove_if_empty_ruleset( 1454 struct pf_ruleset *); 1455 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, 1456 u_int8_t); 1457 1458 extern struct ifnet *sync_ifp; 1459 extern struct pf_rule pf_default_rule; 1460 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *, 1461 u_int8_t); 1462 void pf_rm_rule(struct pf_rulequeue *, 1463 struct pf_rule *); 1464 1465 #ifdef INET 1466 int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *); 1467 #endif /* INET */ 1468 1469 #ifdef INET6 1470 int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *); 1471 void pf_poolmask(struct pf_addr *, struct pf_addr*, 1472 struct pf_addr *, struct pf_addr *, u_int8_t); 1473 void pf_addr_inc(struct pf_addr *, sa_family_t); 1474 #endif /* INET6 */ 1475 1476 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, 1477 sa_family_t); 1478 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); 1479 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, 1480 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *); 1481 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, 1482 struct pf_addr *, sa_family_t); 1483 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); 1484 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); 1485 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); 1486 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); 1487 1488 void pf_normalize_init(void); 1489 #ifdef _LKM 1490 void pf_normalize_destroy(void); 1491 #endif 1492 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, 1493 struct pf_pdesc *); 1494 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, 1495 struct pf_pdesc *); 1496 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, 1497 struct pf_pdesc *); 1498 void pf_normalize_tcp_cleanup(struct pf_state *); 1499 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, 1500 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); 1501 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, 1502 u_short *, struct tcphdr *, struct pf_state *, 1503 struct pf_state_peer *, struct pf_state_peer *, int *); 1504 u_int32_t 1505 pf_state_expires(const struct pf_state *); 1506 void pf_purge_expired_fragments(void); 1507 int pf_routable(struct pf_addr *addr, sa_family_t af); 1508 int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); 1509 void pfr_initialize(void); 1510 #ifdef _LKM 1511 void pfr_destroy(void); 1512 #endif 1513 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); 1514 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, 1515 u_int64_t, int, int, int); 1516 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, 1517 struct pf_addr **, struct pf_addr **, sa_family_t); 1518 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); 1519 struct pfr_ktable * 1520 pfr_attach_table(struct pf_ruleset *, char *); 1521 void pfr_detach_table(struct pfr_ktable *); 1522 int pfr_clr_tables(struct pfr_table *, int *, int); 1523 int pfr_add_tables(struct pfr_table *, int, int *, int); 1524 int pfr_del_tables(struct pfr_table *, int, int *, int); 1525 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); 1526 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); 1527 int pfr_clr_tstats(struct pfr_table *, int, int *, int); 1528 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); 1529 int pfr_clr_addrs(struct pfr_table *, int *, int); 1530 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); 1531 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1532 int); 1533 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1534 int); 1535 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1536 int *, int *, int *, int); 1537 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); 1538 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); 1539 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, 1540 int); 1541 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, 1542 int); 1543 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); 1544 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); 1545 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); 1546 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, 1547 int *, u_int32_t, int); 1548 1549 void pfi_initialize(void); 1550 #ifdef _LKM 1551 void pfi_destroy(void); 1552 #endif 1553 void pfi_attach_clone(struct if_clone *); 1554 void pfi_attach_ifnet(struct ifnet *); 1555 void pfi_detach_ifnet(struct ifnet *); 1556 struct pfi_kif *pfi_lookup_create(const char *); 1557 struct pfi_kif *pfi_lookup_if(const char *); 1558 int pfi_maybe_destroy(struct pfi_kif *); 1559 struct pfi_kif *pfi_attach_rule(const char *); 1560 void pfi_detach_rule(struct pfi_kif *); 1561 void pfi_attach_state(struct pfi_kif *); 1562 void pfi_detach_state(struct pfi_kif *); 1563 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); 1564 void pfi_dynaddr_copyout(struct pf_addr_wrap *); 1565 void pfi_dynaddr_remove(struct pf_addr_wrap *); 1566 void pfi_fill_oldstatus(struct pf_status *); 1567 int pfi_clr_istats(const char *, int *, int); 1568 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int); 1569 int pfi_set_flags(const char *, int); 1570 int pfi_clear_flags(const char *, int); 1571 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, 1572 sa_family_t); 1573 1574 extern struct pfi_statehead pfi_statehead; 1575 1576 u_int16_t pf_tagname2tag(char *); 1577 void pf_tag2tagname(u_int16_t, char *); 1578 void pf_tag_ref(u_int16_t); 1579 void pf_tag_unref(u_int16_t); 1580 int pf_tag_packet(struct mbuf *, struct pf_tag *, int); 1581 u_int32_t pf_qname2qid(char *); 1582 void pf_qid2qname(u_int32_t, char *); 1583 void pf_qid_unref(u_int32_t); 1584 1585 extern struct pf_status pf_status; 1586 extern struct pool pf_frent_pl, pf_frag_pl; 1587 1588 struct pf_pool_limit { 1589 void *pp; 1590 unsigned limit; 1591 }; 1592 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; 1593 1594 #ifdef __NetBSD__ 1595 int pfil4_wrapper(void *, struct mbuf **, struct ifnet *, int); 1596 int pfil6_wrapper(void *, struct mbuf **, struct ifnet *, int); 1597 int pfil_ifnet_wrapper(void *, struct mbuf **, struct ifnet *, int); 1598 int pfil_ifaddr_wrapper(void *, struct mbuf **, struct ifnet *, int); 1599 1600 #endif 1601 1602 /* 1603 * misc compatibility stuffs 1604 */ 1605 #if !defined(PRIu32) 1606 #define PRIu32 "u" /* XXX */ 1607 #endif 1608 #if !defined(__OpenBSD__) 1609 #include <sys/kernel.h> /* mono_time */ 1610 static __inline void getmicrouptime(struct timeval *); 1611 static __inline void 1612 getmicrouptime(struct timeval *tvp) 1613 { 1614 int s; 1615 1616 s = splclock(); 1617 *tvp = mono_time; 1618 splx(s); 1619 } 1620 #define time_second time.tv_sec 1621 #define m_copym2 m_dup 1622 #define pool_allocator_oldnointr pool_allocator_nointr 1623 #endif 1624 #endif /* _KERNEL */ 1625 1626 /* The fingerprint functions can be linked into userland programs (tcpdump) */ 1627 int pf_osfp_add(struct pf_osfp_ioctl *); 1628 #ifdef _KERNEL 1629 struct pf_osfp_enlist * 1630 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, 1631 const struct tcphdr *); 1632 #endif /* _KERNEL */ 1633 struct pf_osfp_enlist * 1634 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *); 1635 void pf_osfp_flush(void); 1636 int pf_osfp_get(struct pf_osfp_ioctl *); 1637 void pf_osfp_initialize(void); 1638 #ifdef _LKM 1639 void pf_osfp_destroy(void); 1640 #endif 1641 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); 1642 struct pf_os_fingerprint * 1643 pf_osfp_validate(void); 1644 1645 1646 #endif /* _NET_PFVAR_H_ */ 1647
Indexes created Mon Sep 29 21:09:56 GMT 2025