1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2002-2009 Luigi Rizzo, Universita` di Pisa 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #ifndef _IPFW2_H 31 #define _IPFW2_H 32 33 /* 34 * The default rule number. By the design of ip_fw, the default rule 35 * is the last one, so its number can also serve as the highest number 36 * allowed for a rule. The ip_fw code relies on both meanings of this 37 * constant. 38 */ 39 #define IPFW_DEFAULT_RULE 65535 40 41 #define RESVD_SET 31 /*set for default and persistent rules*/ 42 #define IPFW_MAX_SETS 32 /* Number of sets supported by ipfw*/ 43 44 /* 45 * Compat values for old clients 46 */ 47 #ifndef _KERNEL 48 #define IPFW_TABLES_MAX 65535 49 #define IPFW_TABLES_DEFAULT 128 50 #endif 51 52 /* 53 * Most commands (queue, pipe, tag, untag, limit...) can have a 16-bit 54 * argument between 1 and 65534. The value 0 (IP_FW_TARG) is used 55 * to represent 'tablearg' value, e.g. indicate the use of a 'tablearg' 56 * result of the most recent table() lookup. 57 * Note that 16bit is only a historical limit, resulting from 58 * the use of a 16-bit fields for that value. In reality, we can have 59 * 2^32 pipes, queues, tag values and so on. 60 */ 61 #define IPFW_ARG_MIN 1 62 #define IPFW_ARG_MAX 65534 63 #define IP_FW_TABLEARG 65535 /* Compat value for old clients */ 64 #define IP_FW_TARG 0 /* Current tablearg value */ 65 #define IP_FW_NAT44_GLOBAL 65535 /* arg1 value for "nat global" */ 66 67 /* 68 * Number of entries in the call stack of the call/return commands. 69 * Call stack currently is an uint16_t array with rule numbers. 70 */ 71 #define IPFW_CALLSTACK_SIZE 16 72 73 /* IP_FW3 header/opcodes */ 74 typedef struct _ip_fw3_opheader { 75 uint16_t opcode; /* Operation opcode */ 76 uint16_t version; /* Opcode version */ 77 uint16_t reserved[2]; /* Align to 64-bit boundary */ 78 } ip_fw3_opheader; 79 80 /* IP_FW3 opcodes */ 81 #define IP_FW_TABLE_XADD 86 /* add entry */ 82 #define IP_FW_TABLE_XDEL 87 /* delete entry */ 83 #define IP_FW_TABLE_XGETSIZE 88 /* get table size (deprecated) */ 84 #define IP_FW_TABLE_XLIST 89 /* list table contents */ 85 #define IP_FW_TABLE_XDESTROY 90 /* destroy table */ 86 #define IP_FW_TABLES_XLIST 92 /* list all tables */ 87 #define IP_FW_TABLE_XINFO 93 /* request info for one table */ 88 #define IP_FW_TABLE_XFLUSH 94 /* flush table data */ 89 #define IP_FW_TABLE_XCREATE 95 /* create new table */ 90 #define IP_FW_TABLE_XMODIFY 96 /* modify existing table */ 91 #define IP_FW_XGET 97 /* Retrieve configuration */ 92 #define IP_FW_XADD 98 /* add rule */ 93 #define IP_FW_XDEL 99 /* del rule */ 94 #define IP_FW_XMOVE 100 /* move rules to different set */ 95 #define IP_FW_XZERO 101 /* clear accounting */ 96 #define IP_FW_XRESETLOG 102 /* zero rules logs */ 97 #define IP_FW_SET_SWAP 103 /* Swap between 2 sets */ 98 #define IP_FW_SET_MOVE 104 /* Move one set to another one */ 99 #define IP_FW_SET_ENABLE 105 /* Enable/disable sets */ 100 #define IP_FW_TABLE_XFIND 106 /* finds an entry */ 101 #define IP_FW_XIFLIST 107 /* list tracked interfaces */ 102 #define IP_FW_TABLES_ALIST 108 /* list table algorithms */ 103 #define IP_FW_TABLE_XSWAP 109 /* swap two tables */ 104 #define IP_FW_TABLE_VLIST 110 /* dump table value hash */ 105 106 #define IP_FW_NAT44_XCONFIG 111 /* Create/modify NAT44 instance */ 107 #define IP_FW_NAT44_DESTROY 112 /* Destroys NAT44 instance */ 108 #define IP_FW_NAT44_XGETCONFIG 113 /* Get NAT44 instance config */ 109 #define IP_FW_NAT44_LIST_NAT 114 /* List all NAT44 instances */ 110 #define IP_FW_NAT44_XGETLOG 115 /* Get log from NAT44 instance */ 111 112 #define IP_FW_DUMP_SOPTCODES 116 /* Dump available sopts/versions */ 113 #define IP_FW_DUMP_SRVOBJECTS 117 /* Dump existing named objects */ 114 115 #define IP_FW_NAT64STL_CREATE 130 /* Create stateless NAT64 instance */ 116 #define IP_FW_NAT64STL_DESTROY 131 /* Destroy stateless NAT64 instance */ 117 #define IP_FW_NAT64STL_CONFIG 132 /* Modify stateless NAT64 instance */ 118 #define IP_FW_NAT64STL_LIST 133 /* List stateless NAT64 instances */ 119 #define IP_FW_NAT64STL_STATS 134 /* Get NAT64STL instance statistics */ 120 #define IP_FW_NAT64STL_RESET_STATS 135 /* Reset NAT64STL instance statistics */ 121 122 #define IP_FW_NAT64LSN_CREATE 140 /* Create stateful NAT64 instance */ 123 #define IP_FW_NAT64LSN_DESTROY 141 /* Destroy stateful NAT64 instance */ 124 #define IP_FW_NAT64LSN_CONFIG 142 /* Modify stateful NAT64 instance */ 125 #define IP_FW_NAT64LSN_LIST 143 /* List stateful NAT64 instances */ 126 #define IP_FW_NAT64LSN_STATS 144 /* Get NAT64LSN instance statistics */ 127 #define IP_FW_NAT64LSN_LIST_STATES 145 /* Get stateful NAT64 states */ 128 #define IP_FW_NAT64LSN_RESET_STATS 146 /* Reset NAT64LSN instance statistics */ 129 130 #define IP_FW_NPTV6_CREATE 150 /* Create NPTv6 instance */ 131 #define IP_FW_NPTV6_DESTROY 151 /* Destroy NPTv6 instance */ 132 #define IP_FW_NPTV6_CONFIG 152 /* Modify NPTv6 instance */ 133 #define IP_FW_NPTV6_LIST 153 /* List NPTv6 instances */ 134 #define IP_FW_NPTV6_STATS 154 /* Get NPTv6 instance statistics */ 135 #define IP_FW_NPTV6_RESET_STATS 155 /* Reset NPTv6 instance statistics */ 136 137 #define IP_FW_NAT64CLAT_CREATE 160 /* Create clat NAT64 instance */ 138 #define IP_FW_NAT64CLAT_DESTROY 161 /* Destroy clat NAT64 instance */ 139 #define IP_FW_NAT64CLAT_CONFIG 162 /* Modify clat NAT64 instance */ 140 #define IP_FW_NAT64CLAT_LIST 163 /* List clat NAT64 instances */ 141 #define IP_FW_NAT64CLAT_STATS 164 /* Get NAT64CLAT instance statistics */ 142 #define IP_FW_NAT64CLAT_RESET_STATS 165 /* Reset NAT64CLAT instance statistics */ 143 144 /* 145 * The kernel representation of ipfw rules is made of a list of 146 * 'instructions' (for all practical purposes equivalent to BPF 147 * instructions), which specify which fields of the packet 148 * (or its metadata) should be analysed. 149 * 150 * Each instruction is stored in a structure which begins with 151 * "ipfw_insn", and can contain extra fields depending on the 152 * instruction type (listed below). 153 * Note that the code is written so that individual instructions 154 * have a size which is a multiple of 32 bits. This means that, if 155 * such structures contain pointers or other 64-bit entities, 156 * (there is just one instance now) they may end up unaligned on 157 * 64-bit architectures, so the must be handled with care. 158 * 159 * "enum ipfw_opcodes" are the opcodes supported. We can have up 160 * to 256 different opcodes. When adding new opcodes, they should 161 * be appended to the end of the opcode list before O_LAST_OPCODE, 162 * this will prevent the ABI from being broken, otherwise users 163 * will have to recompile ipfw(8) when they update the kernel. 164 */ 165 166 enum ipfw_opcodes { /* arguments (4 byte each) */ 167 O_NOP, 168 169 O_IP_SRC, /* u32 = IP */ 170 O_IP_SRC_MASK, /* ip = IP/mask */ 171 O_IP_SRC_ME, /* none */ 172 O_IP_SRC_SET, /* u32=base, arg1=len, bitmap */ 173 174 O_IP_DST, /* u32 = IP */ 175 O_IP_DST_MASK, /* ip = IP/mask */ 176 O_IP_DST_ME, /* none */ 177 O_IP_DST_SET, /* u32=base, arg1=len, bitmap */ 178 179 O_IP_SRCPORT, /* (n)port list:mask 4 byte ea */ 180 O_IP_DSTPORT, /* (n)port list:mask 4 byte ea */ 181 O_PROTO, /* arg1=protocol */ 182 183 O_MACADDR2, /* 2 mac addr:mask */ 184 O_MAC_TYPE, /* same as srcport */ 185 186 O_LAYER2, /* none */ 187 O_IN, /* none */ 188 O_FRAG, /* none */ 189 190 O_RECV, /* none */ 191 O_XMIT, /* none */ 192 O_VIA, /* none */ 193 194 O_IPOPT, /* arg1 = 2*u8 bitmap */ 195 O_IPLEN, /* arg1 = len */ 196 O_IPID, /* arg1 = id */ 197 198 O_IPTOS, /* arg1 = id */ 199 O_IPPRECEDENCE, /* arg1 = precedence << 5 */ 200 O_IPTTL, /* arg1 = TTL */ 201 202 O_IPVER, /* arg1 = version */ 203 O_UID, /* u32 = id */ 204 O_GID, /* u32 = id */ 205 O_ESTAB, /* none (tcp established) */ 206 O_TCPFLAGS, /* arg1 = 2*u8 bitmap */ 207 O_TCPWIN, /* arg1 = desired win */ 208 O_TCPSEQ, /* u32 = desired seq. */ 209 O_TCPACK, /* u32 = desired seq. */ 210 O_ICMPTYPE, /* u32 = icmp bitmap */ 211 O_TCPOPTS, /* arg1 = 2*u8 bitmap */ 212 213 O_VERREVPATH, /* none */ 214 O_VERSRCREACH, /* none */ 215 216 O_PROBE_STATE, /* none */ 217 O_KEEP_STATE, /* none */ 218 O_LIMIT, /* ipfw_insn_limit */ 219 O_LIMIT_PARENT, /* dyn_type, not an opcode. */ 220 221 /* 222 * These are really 'actions'. 223 */ 224 225 O_LOG, /* ipfw_insn_log */ 226 O_PROB, /* u32 = match probability */ 227 228 O_CHECK_STATE, /* none */ 229 O_ACCEPT, /* none */ 230 O_DENY, /* none */ 231 O_REJECT, /* arg1=icmp arg (same as deny) */ 232 O_COUNT, /* none */ 233 O_SKIPTO, /* arg1=next rule number */ 234 O_PIPE, /* arg1=pipe number */ 235 O_QUEUE, /* arg1=queue number */ 236 O_DIVERT, /* arg1=port number */ 237 O_TEE, /* arg1=port number */ 238 O_FORWARD_IP, /* fwd sockaddr */ 239 O_FORWARD_MAC, /* fwd mac */ 240 O_NAT, /* nope */ 241 O_REASS, /* none */ 242 243 /* 244 * More opcodes. 245 */ 246 O_IPSEC, /* has ipsec history */ 247 O_IP_SRC_LOOKUP, /* arg1=table number, u32=value */ 248 O_IP_DST_LOOKUP, /* arg1=table number, u32=value */ 249 O_ANTISPOOF, /* none */ 250 O_JAIL, /* u32 = id */ 251 O_ALTQ, /* u32 = altq classif. qid */ 252 O_DIVERTED, /* arg1=bitmap (1:loop, 2:out) */ 253 O_TCPDATALEN, /* arg1 = tcp data len */ 254 O_IP6_SRC, /* address without mask */ 255 O_IP6_SRC_ME, /* my addresses */ 256 O_IP6_SRC_MASK, /* address with the mask */ 257 O_IP6_DST, 258 O_IP6_DST_ME, 259 O_IP6_DST_MASK, 260 O_FLOW6ID, /* for flow id tag in the ipv6 pkt */ 261 O_ICMP6TYPE, /* icmp6 packet type filtering */ 262 O_EXT_HDR, /* filtering for ipv6 extension header */ 263 O_IP6, 264 265 /* 266 * actions for ng_ipfw 267 */ 268 O_NETGRAPH, /* send to ng_ipfw */ 269 O_NGTEE, /* copy to ng_ipfw */ 270 271 O_IP4, 272 273 O_UNREACH6, /* arg1=icmpv6 code arg (deny) */ 274 275 O_TAG, /* arg1=tag number */ 276 O_TAGGED, /* arg1=tag number */ 277 278 O_SETFIB, /* arg1=FIB number */ 279 O_FIB, /* arg1=FIB desired fib number */ 280 281 O_SOCKARG, /* socket argument */ 282 283 O_CALLRETURN, /* arg1=called rule number */ 284 285 O_FORWARD_IP6, /* fwd sockaddr_in6 */ 286 287 O_DSCP, /* 2 u32 = DSCP mask */ 288 O_SETDSCP, /* arg1=DSCP value */ 289 O_IP_FLOW_LOOKUP, /* arg1=table number, u32=value */ 290 291 O_EXTERNAL_ACTION, /* arg1=id of external action handler */ 292 O_EXTERNAL_INSTANCE, /* arg1=id of eaction handler instance */ 293 O_EXTERNAL_DATA, /* variable length data */ 294 295 O_SKIP_ACTION, /* none */ 296 O_TCPMSS, /* arg1=MSS value */ 297 298 O_MAC_SRC_LOOKUP, /* arg1=table number, u32=value */ 299 O_MAC_DST_LOOKUP, /* arg1=table number, u32=value */ 300 301 O_SETMARK, /* u32 = value */ 302 O_MARK, /* 2 u32 = value, bitmask */ 303 304 O_LAST_OPCODE /* not an opcode! */ 305 }; 306 307 /* 308 * Defines key types used by lookup instruction 309 */ 310 enum ipfw_table_lookup_type { 311 LOOKUP_DST_IP, 312 LOOKUP_SRC_IP, 313 LOOKUP_DST_PORT, 314 LOOKUP_SRC_PORT, 315 LOOKUP_UID, 316 LOOKUP_JAIL, 317 LOOKUP_DSCP, 318 LOOKUP_DST_MAC, 319 LOOKUP_SRC_MAC, 320 LOOKUP_MARK, 321 }; 322 323 /* 324 * The extension header are filtered only for presence using a bit 325 * vector with a flag for each header. 326 */ 327 #define EXT_FRAGMENT 0x1 328 #define EXT_HOPOPTS 0x2 329 #define EXT_ROUTING 0x4 330 #define EXT_AH 0x8 331 #define EXT_ESP 0x10 332 #define EXT_DSTOPTS 0x20 333 #define EXT_RTHDR0 0x40 334 #define EXT_RTHDR2 0x80 335 336 /* 337 * Template for instructions. 338 * 339 * ipfw_insn is used for all instructions which require no operands, 340 * a single 16-bit value (arg1), or a couple of 8-bit values. 341 * 342 * For other instructions which require different/larger arguments 343 * we have derived structures, ipfw_insn_*. 344 * 345 * The size of the instruction (in 32-bit words) is in the low 346 * 6 bits of "len". The 2 remaining bits are used to implement 347 * NOT and OR on individual instructions. Given a type, you can 348 * compute the length to be put in "len" using F_INSN_SIZE(t) 349 * 350 * F_NOT negates the match result of the instruction. 351 * 352 * F_OR is used to build or blocks. By default, instructions 353 * are evaluated as part of a logical AND. An "or" block 354 * { X or Y or Z } contains F_OR set in all but the last 355 * instruction of the block. A match will cause the code 356 * to skip past the last instruction of the block. 357 * 358 * NOTA BENE: in a couple of places we assume that 359 * sizeof(ipfw_insn) == sizeof(u_int32_t) 360 * this needs to be fixed. 361 * 362 */ 363 typedef struct _ipfw_insn { /* template for instructions */ 364 _Alignas(_Alignof(u_int32_t)) u_int8_t opcode; 365 u_int8_t len; /* number of 32-bit words */ 366 #define F_NOT 0x80 367 #define F_OR 0x40 368 #define F_LEN_MASK 0x3f 369 #define F_LEN(cmd) ((cmd)->len & F_LEN_MASK) 370 371 u_int16_t arg1; 372 } ipfw_insn; 373 374 /* 375 * The F_INSN_SIZE(type) computes the size, in 4-byte words, of 376 * a given type. 377 */ 378 #define F_INSN_SIZE(t) ((sizeof (t))/sizeof(u_int32_t)) 379 380 /* 381 * This is used to store an array of 16-bit entries (ports etc.) 382 */ 383 typedef struct _ipfw_insn_u16 { 384 ipfw_insn o; 385 u_int16_t ports[2]; /* there may be more */ 386 } ipfw_insn_u16; 387 388 /* 389 * This is used to store an array of 32-bit entries 390 * (uid, single IPv4 addresses etc.) 391 */ 392 typedef struct _ipfw_insn_u32 { 393 ipfw_insn o; 394 u_int32_t d[1]; /* one or more */ 395 } ipfw_insn_u32; 396 397 /* 398 * This is used to store IP addr-mask pairs. 399 */ 400 typedef struct _ipfw_insn_ip { 401 ipfw_insn o; 402 struct in_addr addr; 403 struct in_addr mask; 404 } ipfw_insn_ip; 405 406 /* 407 * This is used to forward to a given address (ip). 408 */ 409 typedef struct _ipfw_insn_sa { 410 ipfw_insn o; 411 struct sockaddr_in sa; 412 } ipfw_insn_sa; 413 414 /* 415 * This is used to forward to a given address (ipv6). 416 */ 417 typedef struct _ipfw_insn_sa6 { 418 ipfw_insn o; 419 struct sockaddr_in6 sa; 420 } ipfw_insn_sa6; 421 422 /* 423 * This is used for MAC addr-mask pairs. 424 */ 425 typedef struct _ipfw_insn_mac { 426 ipfw_insn o; 427 u_char addr[12]; /* dst[6] + src[6] */ 428 u_char mask[12]; /* dst[6] + src[6] */ 429 } ipfw_insn_mac; 430 431 /* 432 * This is used for interface match rules (recv xx, xmit xx). 433 */ 434 typedef struct _ipfw_insn_if { 435 ipfw_insn o; 436 union { 437 struct in_addr ip; 438 int glob; 439 uint16_t kidx; 440 } p; 441 char name[IFNAMSIZ]; 442 } ipfw_insn_if; 443 444 /* 445 * This is used for storing an altq queue id number. 446 */ 447 typedef struct _ipfw_insn_altq { 448 ipfw_insn o; 449 u_int32_t qid; 450 } ipfw_insn_altq; 451 452 /* 453 * This is used for limit rules. 454 */ 455 typedef struct _ipfw_insn_limit { 456 ipfw_insn o; 457 u_int8_t _pad; 458 u_int8_t limit_mask; /* combination of DYN_* below */ 459 #define DYN_SRC_ADDR 0x1 460 #define DYN_SRC_PORT 0x2 461 #define DYN_DST_ADDR 0x4 462 #define DYN_DST_PORT 0x8 463 464 u_int16_t conn_limit; 465 } ipfw_insn_limit; 466 467 /* 468 * This is used for log instructions. 469 */ 470 typedef struct _ipfw_insn_log { 471 ipfw_insn o; 472 u_int32_t max_log; /* how many do we log -- 0 = all */ 473 u_int32_t log_left; /* how many left to log */ 474 } ipfw_insn_log; 475 476 /* Legacy NAT structures, compat only */ 477 #ifndef _KERNEL 478 /* 479 * Data structures required by both ipfw(8) and ipfw(4) but not part of the 480 * management API are protected by IPFW_INTERNAL. 481 */ 482 #ifdef IPFW_INTERNAL 483 /* Server pool support (LSNAT). */ 484 struct cfg_spool { 485 LIST_ENTRY(cfg_spool) _next; /* chain of spool instances */ 486 struct in_addr addr; 487 u_short port; 488 }; 489 #endif 490 491 /* Redirect modes id. */ 492 #define REDIR_ADDR 0x01 493 #define REDIR_PORT 0x02 494 #define REDIR_PROTO 0x04 495 496 #ifdef IPFW_INTERNAL 497 /* Nat redirect configuration. */ 498 struct cfg_redir { 499 LIST_ENTRY(cfg_redir) _next; /* chain of redir instances */ 500 u_int16_t mode; /* type of redirect mode */ 501 struct in_addr laddr; /* local ip address */ 502 struct in_addr paddr; /* public ip address */ 503 struct in_addr raddr; /* remote ip address */ 504 u_short lport; /* local port */ 505 u_short pport; /* public port */ 506 u_short rport; /* remote port */ 507 u_short pport_cnt; /* number of public ports */ 508 u_short rport_cnt; /* number of remote ports */ 509 int proto; /* protocol: tcp/udp */ 510 struct alias_link **alink; 511 /* num of entry in spool chain */ 512 u_int16_t spool_cnt; 513 /* chain of spool instances */ 514 LIST_HEAD(spool_chain, cfg_spool) spool_chain; 515 }; 516 #endif 517 518 #ifdef IPFW_INTERNAL 519 /* Nat configuration data struct. */ 520 struct cfg_nat { 521 /* chain of nat instances */ 522 LIST_ENTRY(cfg_nat) _next; 523 int id; /* nat id */ 524 struct in_addr ip; /* nat ip address */ 525 char if_name[IF_NAMESIZE]; /* interface name */ 526 int mode; /* aliasing mode */ 527 struct libalias *lib; /* libalias instance */ 528 /* number of entry in spool chain */ 529 int redir_cnt; 530 /* chain of redir instances */ 531 LIST_HEAD(redir_chain, cfg_redir) redir_chain; 532 }; 533 #endif 534 535 #define SOF_NAT sizeof(struct cfg_nat) 536 #define SOF_REDIR sizeof(struct cfg_redir) 537 #define SOF_SPOOL sizeof(struct cfg_spool) 538 539 #endif /* ifndef _KERNEL */ 540 541 struct nat44_cfg_spool { 542 struct in_addr addr; 543 uint16_t port; 544 uint16_t spare; 545 }; 546 #define NAT44_REDIR_ADDR 0x01 547 #define NAT44_REDIR_PORT 0x02 548 #define NAT44_REDIR_PROTO 0x04 549 550 /* Nat redirect configuration. */ 551 struct nat44_cfg_redir { 552 struct in_addr laddr; /* local ip address */ 553 struct in_addr paddr; /* public ip address */ 554 struct in_addr raddr; /* remote ip address */ 555 uint16_t lport; /* local port */ 556 uint16_t pport; /* public port */ 557 uint16_t rport; /* remote port */ 558 uint16_t pport_cnt; /* number of public ports */ 559 uint16_t rport_cnt; /* number of remote ports */ 560 uint16_t mode; /* type of redirect mode */ 561 uint16_t spool_cnt; /* num of entry in spool chain */ 562 uint16_t spare; 563 uint32_t proto; /* protocol: tcp/udp */ 564 }; 565 566 /* Nat configuration data struct. */ 567 struct nat44_cfg_nat { 568 char name[64]; /* nat name */ 569 char if_name[64]; /* interface name */ 570 uint32_t size; /* structure size incl. redirs */ 571 struct in_addr ip; /* nat IPv4 address */ 572 uint32_t mode; /* aliasing mode */ 573 uint32_t redir_cnt; /* number of entry in spool chain */ 574 u_short alias_port_lo; /* low range for port aliasing */ 575 u_short alias_port_hi; /* high range for port aliasing */ 576 }; 577 578 /* Nat command. */ 579 typedef struct _ipfw_insn_nat { 580 ipfw_insn o; 581 struct cfg_nat *nat; 582 } ipfw_insn_nat; 583 584 /* Apply ipv6 mask on ipv6 addr */ 585 #define APPLY_MASK(addr,mask) do { \ 586 (addr)->__u6_addr.__u6_addr32[0] &= (mask)->__u6_addr.__u6_addr32[0]; \ 587 (addr)->__u6_addr.__u6_addr32[1] &= (mask)->__u6_addr.__u6_addr32[1]; \ 588 (addr)->__u6_addr.__u6_addr32[2] &= (mask)->__u6_addr.__u6_addr32[2]; \ 589 (addr)->__u6_addr.__u6_addr32[3] &= (mask)->__u6_addr.__u6_addr32[3]; \ 590 } while (0) 591 592 /* Structure for ipv6 */ 593 typedef struct _ipfw_insn_ip6 { 594 ipfw_insn o; 595 struct in6_addr addr6; 596 struct in6_addr mask6; 597 } ipfw_insn_ip6; 598 599 /* Used to support icmp6 types */ 600 typedef struct _ipfw_insn_icmp6 { 601 ipfw_insn o; 602 uint32_t d[7]; /* XXX This number si related to the netinet/icmp6.h 603 * define ICMP6_MAXTYPE 604 * as follows: n = ICMP6_MAXTYPE/32 + 1 605 * Actually is 203 606 */ 607 } ipfw_insn_icmp6; 608 609 /* 610 * Here we have the structure representing an ipfw rule. 611 * 612 * Layout: 613 * struct ip_fw_rule 614 * [ counter block, size = rule->cntr_len ] 615 * [ one or more instructions, size = rule->cmd_len * 4 ] 616 * 617 * It starts with a general area (with link fields). 618 * Counter block may be next (if rule->cntr_len > 0), 619 * followed by an array of one or more instructions, which the code 620 * accesses as an array of 32-bit values. rule->cmd_len represents 621 * the total instructions legth in u32 worrd, while act_ofs represents 622 * rule action offset in u32 words. 623 * 624 * When assembling instruction, remember the following: 625 * 626 * + if a rule has a "keep-state" (or "limit") option, then the 627 * first instruction (at r->cmd) MUST BE an O_PROBE_STATE 628 * + if a rule has a "log" option, then the first action 629 * (at ACTION_PTR(r)) MUST be O_LOG 630 * + if a rule has an "altq" option, it comes after "log" 631 * + if a rule has an O_TAG option, it comes after "log" and "altq" 632 * 633 * 634 * All structures (excluding instructions) are u64-aligned. 635 * Please keep this. 636 */ 637 638 struct ip_fw_rule { 639 uint16_t act_ofs; /* offset of action in 32-bit units */ 640 uint16_t cmd_len; /* # of 32-bit words in cmd */ 641 uint16_t spare; 642 uint8_t set; /* rule set (0..31) */ 643 uint8_t flags; /* rule flags */ 644 uint32_t rulenum; /* rule number */ 645 uint32_t id; /* rule id */ 646 647 ipfw_insn cmd[1]; /* storage for commands */ 648 }; 649 #define IPFW_RULE_NOOPT 0x01 /* Has no options in body */ 650 #define IPFW_RULE_JUSTOPTS 0x02 /* new format of rule body */ 651 652 /* Unaligned version */ 653 654 /* Base ipfw rule counter block. */ 655 struct ip_fw_bcounter { 656 uint16_t size; /* Size of counter block, bytes */ 657 uint8_t flags; /* flags for given block */ 658 uint8_t spare; 659 uint32_t timestamp; /* tv_sec of last match */ 660 uint64_t pcnt; /* Packet counter */ 661 uint64_t bcnt; /* Byte counter */ 662 }; 663 664 #ifndef _KERNEL 665 /* 666 * Legacy rule format 667 */ 668 struct ip_fw { 669 struct ip_fw *x_next; /* linked list of rules */ 670 struct ip_fw *next_rule; /* ptr to next [skipto] rule */ 671 /* 'next_rule' is used to pass up 'set_disable' status */ 672 673 uint16_t act_ofs; /* offset of action in 32-bit units */ 674 uint16_t cmd_len; /* # of 32-bit words in cmd */ 675 uint16_t rulenum; /* rule number */ 676 uint8_t set; /* rule set (0..31) */ 677 uint8_t _pad; /* padding */ 678 uint32_t id; /* rule id */ 679 680 /* These fields are present in all rules. */ 681 uint64_t pcnt; /* Packet counter */ 682 uint64_t bcnt; /* Byte counter */ 683 uint32_t timestamp; /* tv_sec of last match */ 684 685 ipfw_insn cmd[1]; /* storage for commands */ 686 }; 687 #endif 688 689 #define ACTION_PTR(rule) \ 690 (ipfw_insn *)( (u_int32_t *)((rule)->cmd) + ((rule)->act_ofs) ) 691 692 #define RULESIZE(rule) (sizeof(*(rule)) + (rule)->cmd_len * 4 - 4) 693 694 #if 1 // should be moved to in.h 695 /* 696 * This structure is used as a flow mask and a flow id for various 697 * parts of the code. 698 * addr_type is used in userland and kernel to mark the address type. 699 * fib is used in the kernel to record the fib in use. 700 * _flags is used in the kernel to store tcp flags for dynamic rules. 701 */ 702 struct ipfw_flow_id { 703 uint32_t dst_ip; 704 uint32_t src_ip; 705 uint16_t dst_port; 706 uint16_t src_port; 707 uint8_t fib; /* XXX: must be uint16_t */ 708 uint8_t proto; 709 uint8_t _flags; /* protocol-specific flags */ 710 uint8_t addr_type; /* 4=ip4, 6=ip6, 1=ether ? */ 711 struct in6_addr dst_ip6; 712 struct in6_addr src_ip6; 713 uint32_t flow_id6; 714 uint32_t extra; /* queue/pipe or frag_id */ 715 }; 716 #endif 717 718 #define IS_IP4_FLOW_ID(id) ((id)->addr_type == 4) 719 #define IS_IP6_FLOW_ID(id) ((id)->addr_type == 6) 720 721 /* 722 * Dynamic ipfw rule. 723 */ 724 typedef struct _ipfw_dyn_rule ipfw_dyn_rule; 725 726 struct _ipfw_dyn_rule { 727 ipfw_dyn_rule *next; /* linked list of rules. */ 728 struct ip_fw *rule; /* pointer to rule */ 729 /* 'rule' is used to pass up the rule number (from the parent) */ 730 731 ipfw_dyn_rule *parent; /* pointer to parent rule */ 732 u_int64_t pcnt; /* packet match counter */ 733 u_int64_t bcnt; /* byte match counter */ 734 struct ipfw_flow_id id; /* (masked) flow id */ 735 u_int32_t expire; /* expire time */ 736 u_int32_t bucket; /* which bucket in hash table */ 737 u_int32_t state; /* state of this rule (typically a 738 * combination of TCP flags) 739 */ 740 #define IPFW_DYN_ORPHANED 0x40000 /* state's parent rule was deleted */ 741 u_int32_t ack_fwd; /* most recent ACKs in forward */ 742 u_int32_t ack_rev; /* and reverse directions (used */ 743 /* to generate keepalives) */ 744 u_int16_t dyn_type; /* rule type */ 745 u_int16_t count; /* refcount */ 746 u_int16_t kidx; /* index of named object */ 747 } __packed __aligned(8); 748 749 /* 750 * Definitions for IP option names. 751 */ 752 #define IP_FW_IPOPT_LSRR 0x01 753 #define IP_FW_IPOPT_SSRR 0x02 754 #define IP_FW_IPOPT_RR 0x04 755 #define IP_FW_IPOPT_TS 0x08 756 757 /* 758 * Definitions for TCP option names. 759 */ 760 #define IP_FW_TCPOPT_MSS 0x01 761 #define IP_FW_TCPOPT_WINDOW 0x02 762 #define IP_FW_TCPOPT_SACK 0x04 763 #define IP_FW_TCPOPT_TS 0x08 764 #define IP_FW_TCPOPT_CC 0x10 765 766 #define ICMP_REJECT_RST 0x100 /* fake ICMP code (send a TCP RST) */ 767 #define ICMP6_UNREACH_RST 0x100 /* fake ICMPv6 code (send a TCP RST) */ 768 #define ICMP_REJECT_ABORT 0x101 /* fake ICMP code (send an SCTP ABORT) */ 769 #define ICMP6_UNREACH_ABORT 0x101 /* fake ICMPv6 code (send an SCTP ABORT) */ 770 771 /* 772 * These are used for lookup tables. 773 */ 774 775 #define IPFW_TABLE_ADDR 1 /* Table for holding IPv4/IPv6 prefixes */ 776 #define IPFW_TABLE_INTERFACE 2 /* Table for holding interface names */ 777 #define IPFW_TABLE_NUMBER 3 /* Table for holding ports/uid/gid/etc */ 778 #define IPFW_TABLE_FLOW 4 /* Table for holding flow data */ 779 #define IPFW_TABLE_MAC 5 /* Table for holding mac address prefixes */ 780 #define IPFW_TABLE_MAXTYPE 5 /* Maximum valid number */ 781 782 #define IPFW_TABLE_CIDR IPFW_TABLE_ADDR /* compat */ 783 784 /* Value types */ 785 #define IPFW_VTYPE_LEGACY 0xFFFFFFFF /* All data is filled in */ 786 #define IPFW_VTYPE_SKIPTO 0x00000001 /* skipto/call/callreturn */ 787 #define IPFW_VTYPE_PIPE 0x00000002 /* pipe/queue */ 788 #define IPFW_VTYPE_FIB 0x00000004 /* setfib */ 789 #define IPFW_VTYPE_NAT 0x00000008 /* nat */ 790 #define IPFW_VTYPE_DSCP 0x00000010 /* dscp */ 791 #define IPFW_VTYPE_TAG 0x00000020 /* tag/untag */ 792 #define IPFW_VTYPE_DIVERT 0x00000040 /* divert/tee */ 793 #define IPFW_VTYPE_NETGRAPH 0x00000080 /* netgraph/ngtee */ 794 #define IPFW_VTYPE_LIMIT 0x00000100 /* limit */ 795 #define IPFW_VTYPE_NH4 0x00000200 /* IPv4 nexthop */ 796 #define IPFW_VTYPE_NH6 0x00000400 /* IPv6 nexthop */ 797 #define IPFW_VTYPE_MARK 0x00000800 /* [fw]mark */ 798 799 /* MAC/InfiniBand/etc address length */ 800 #define IPFW_MAX_L2_ADDR_LEN 20 801 802 typedef struct _ipfw_table_entry { 803 in_addr_t addr; /* network address */ 804 u_int32_t value; /* value */ 805 u_int16_t tbl; /* table number */ 806 u_int8_t masklen; /* mask length */ 807 } ipfw_table_entry; 808 809 typedef struct _ipfw_table_xentry { 810 uint16_t len; /* Total entry length */ 811 uint8_t type; /* entry type */ 812 uint8_t masklen; /* mask length */ 813 uint16_t tbl; /* table number */ 814 uint16_t flags; /* record flags */ 815 uint32_t value; /* value */ 816 union { 817 /* Longest field needs to be aligned by 4-byte boundary */ 818 struct in6_addr addr6; /* IPv6 address */ 819 char iface[IF_NAMESIZE]; /* interface name */ 820 } k; 821 } ipfw_table_xentry; 822 #define IPFW_TCF_INET 0x01 /* CIDR flags: IPv4 record */ 823 824 typedef struct _ipfw_table { 825 u_int32_t size; /* size of entries in bytes */ 826 u_int32_t cnt; /* # of entries */ 827 u_int16_t tbl; /* table number */ 828 ipfw_table_entry ent[0]; /* entries */ 829 } ipfw_table; 830 831 typedef struct _ipfw_xtable { 832 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 833 uint32_t size; /* size of entries in bytes */ 834 uint32_t cnt; /* # of entries */ 835 uint16_t tbl; /* table number */ 836 uint8_t type; /* table type */ 837 ipfw_table_xentry xent[0]; /* entries */ 838 } ipfw_xtable; 839 840 typedef struct _ipfw_obj_tlv { 841 uint16_t type; /* TLV type */ 842 uint16_t flags; /* TLV-specific flags */ 843 uint32_t length; /* Total length, aligned to u64 */ 844 } ipfw_obj_tlv; 845 #define IPFW_TLV_TBL_NAME 1 846 #define IPFW_TLV_TBLNAME_LIST 2 847 #define IPFW_TLV_RULE_LIST 3 848 #define IPFW_TLV_DYNSTATE_LIST 4 849 #define IPFW_TLV_TBL_ENT 5 850 #define IPFW_TLV_DYN_ENT 6 851 #define IPFW_TLV_RULE_ENT 7 852 #define IPFW_TLV_TBLENT_LIST 8 853 #define IPFW_TLV_RANGE 9 854 #define IPFW_TLV_EACTION 10 855 #define IPFW_TLV_COUNTERS 11 856 #define IPFW_TLV_OBJDATA 12 857 #define IPFW_TLV_STATE_NAME 14 858 859 #define IPFW_TLV_EACTION_BASE 1000 860 #define IPFW_TLV_EACTION_NAME(arg) (IPFW_TLV_EACTION_BASE + (arg)) 861 862 typedef struct _ipfw_obj_data { 863 ipfw_obj_tlv head; 864 void *data[0]; 865 } ipfw_obj_data; 866 867 /* Object name TLV */ 868 typedef struct _ipfw_obj_ntlv { 869 ipfw_obj_tlv head; /* TLV header */ 870 uint16_t idx; /* Name index */ 871 uint8_t set; /* set, if applicable */ 872 uint8_t type; /* object type, if applicable */ 873 uint32_t spare; /* unused */ 874 char name[64]; /* Null-terminated name */ 875 } ipfw_obj_ntlv; 876 877 /* IPv4/IPv6 L4 flow description */ 878 struct tflow_entry { 879 uint8_t af; 880 uint8_t proto; 881 uint16_t spare; 882 uint16_t sport; 883 uint16_t dport; 884 union { 885 struct { 886 struct in_addr sip; 887 struct in_addr dip; 888 } a4; 889 struct { 890 struct in6_addr sip6; 891 struct in6_addr dip6; 892 } a6; 893 } a; 894 }; 895 896 /* 64-byte structure representing multi-field table value */ 897 typedef struct _ipfw_table_value { 898 uint32_t tag; /* O_TAG/O_TAGGED */ 899 uint32_t pipe; /* O_PIPE/O_QUEUE */ 900 uint16_t divert; /* O_DIVERT/O_TEE */ 901 uint16_t skipto; /* skipto, CALLRET */ 902 uint32_t netgraph; /* O_NETGRAPH/O_NGTEE */ 903 uint32_t fib; /* O_SETFIB */ 904 uint32_t nat; /* O_NAT */ 905 uint32_t nh4; 906 uint8_t dscp; 907 uint8_t spare0; 908 uint16_t kidx; /* value kernel index */ 909 struct in6_addr nh6; 910 uint32_t limit; /* O_LIMIT */ 911 uint32_t zoneid; /* scope zone id for nh6 */ 912 uint32_t mark; /* O_SETMARK/O_MARK */ 913 uint32_t refcnt; /* XXX 64-bit in kernel */ 914 } ipfw_table_value; 915 916 /* Table entry TLV */ 917 typedef struct _ipfw_obj_tentry { 918 ipfw_obj_tlv head; /* TLV header */ 919 uint8_t subtype; /* subtype (IPv4,IPv6) */ 920 uint8_t masklen; /* mask length */ 921 uint8_t result; /* request result */ 922 uint8_t spare0; 923 uint16_t idx; /* Table name index */ 924 uint16_t spare1; 925 union { 926 /* Longest field needs to be aligned by 8-byte boundary */ 927 struct in_addr addr; /* IPv4 address */ 928 uint32_t key; /* uid/gid/port */ 929 struct in6_addr addr6; /* IPv6 address */ 930 char iface[IF_NAMESIZE]; /* interface name */ 931 u_char mac[IPFW_MAX_L2_ADDR_LEN]; /* MAC address */ 932 struct tflow_entry flow; 933 } k; 934 union { 935 ipfw_table_value value; /* value data */ 936 uint32_t kidx; /* value kernel index */ 937 } v; 938 } ipfw_obj_tentry; 939 #define IPFW_TF_UPDATE 0x01 /* Update record if exists */ 940 /* Container TLV */ 941 #define IPFW_CTF_ATOMIC 0x01 /* Perform atomic operation */ 942 /* Operation results */ 943 #define IPFW_TR_IGNORED 0 /* Entry was ignored (rollback) */ 944 #define IPFW_TR_ADDED 1 /* Entry was successfully added */ 945 #define IPFW_TR_UPDATED 2 /* Entry was successfully updated*/ 946 #define IPFW_TR_DELETED 3 /* Entry was successfully deleted*/ 947 #define IPFW_TR_LIMIT 4 /* Entry was ignored (limit) */ 948 #define IPFW_TR_NOTFOUND 5 /* Entry was not found */ 949 #define IPFW_TR_EXISTS 6 /* Entry already exists */ 950 #define IPFW_TR_ERROR 7 /* Request has failed (unknown) */ 951 952 typedef struct _ipfw_obj_dyntlv { 953 ipfw_obj_tlv head; 954 ipfw_dyn_rule state; 955 } ipfw_obj_dyntlv; 956 #define IPFW_DF_LAST 0x01 /* Last state in chain */ 957 958 /* Containter TLVs */ 959 typedef struct _ipfw_obj_ctlv { 960 ipfw_obj_tlv head; /* TLV header */ 961 uint32_t count; /* Number of sub-TLVs */ 962 uint16_t objsize; /* Single object size */ 963 uint8_t version; /* TLV version */ 964 uint8_t flags; /* TLV-specific flags */ 965 } ipfw_obj_ctlv; 966 967 /* Range TLV */ 968 typedef struct _ipfw_range_tlv { 969 ipfw_obj_tlv head; /* TLV header */ 970 uint32_t flags; /* Range flags */ 971 uint16_t start_rule; /* Range start */ 972 uint16_t end_rule; /* Range end */ 973 uint32_t set; /* Range set to match */ 974 uint32_t new_set; /* New set to move/swap to */ 975 } ipfw_range_tlv; 976 #define IPFW_RCFLAG_RANGE 0x01 /* rule range is set */ 977 #define IPFW_RCFLAG_ALL 0x02 /* match ALL rules */ 978 #define IPFW_RCFLAG_SET 0x04 /* match rules in given set */ 979 #define IPFW_RCFLAG_DYNAMIC 0x08 /* match only dynamic states */ 980 /* User-settable flags */ 981 #define IPFW_RCFLAG_USER (IPFW_RCFLAG_RANGE | IPFW_RCFLAG_ALL | \ 982 IPFW_RCFLAG_SET | IPFW_RCFLAG_DYNAMIC) 983 /* Internally used flags */ 984 #define IPFW_RCFLAG_DEFAULT 0x0100 /* Do not skip defaul rule */ 985 986 typedef struct _ipfw_ta_tinfo { 987 uint32_t flags; /* Format flags */ 988 uint32_t spare; 989 uint8_t taclass4; /* algorithm class */ 990 uint8_t spare4; 991 uint16_t itemsize4; /* item size in runtime */ 992 uint32_t size4; /* runtime structure size */ 993 uint32_t count4; /* number of items in runtime */ 994 uint8_t taclass6; /* algorithm class */ 995 uint8_t spare6; 996 uint16_t itemsize6; /* item size in runtime */ 997 uint32_t size6; /* runtime structure size */ 998 uint32_t count6; /* number of items in runtime */ 999 } ipfw_ta_tinfo; 1000 #define IPFW_TACLASS_HASH 1 /* algo is based on hash */ 1001 #define IPFW_TACLASS_ARRAY 2 /* algo is based on array */ 1002 #define IPFW_TACLASS_RADIX 3 /* algo is based on radix tree */ 1003 1004 #define IPFW_TATFLAGS_DATA 0x0001 /* Has data filled in */ 1005 #define IPFW_TATFLAGS_AFDATA 0x0002 /* Separate data per AF */ 1006 #define IPFW_TATFLAGS_AFITEM 0x0004 /* diff. items per AF */ 1007 1008 typedef struct _ipfw_xtable_info { 1009 uint8_t type; /* table type (addr,iface,..) */ 1010 uint8_t tflags; /* type flags */ 1011 uint16_t mflags; /* modification flags */ 1012 uint16_t flags; /* generic table flags */ 1013 uint16_t spare[3]; 1014 uint32_t vmask; /* bitmask with value types */ 1015 uint32_t set; /* set table is in */ 1016 uint32_t kidx; /* kernel index */ 1017 uint32_t refcnt; /* number of references */ 1018 uint32_t count; /* Number of records */ 1019 uint32_t size; /* Total size of records(export)*/ 1020 uint32_t limit; /* Max number of records */ 1021 char tablename[64]; /* table name */ 1022 char algoname[64]; /* algorithm name */ 1023 ipfw_ta_tinfo ta_info; /* additional algo stats */ 1024 } ipfw_xtable_info; 1025 /* Generic table flags */ 1026 #define IPFW_TGFLAGS_LOCKED 0x01 /* Tables is locked from changes*/ 1027 /* Table type-specific flags */ 1028 #define IPFW_TFFLAG_SRCIP 0x01 1029 #define IPFW_TFFLAG_DSTIP 0x02 1030 #define IPFW_TFFLAG_SRCPORT 0x04 1031 #define IPFW_TFFLAG_DSTPORT 0x08 1032 #define IPFW_TFFLAG_PROTO 0x10 1033 /* Table modification flags */ 1034 #define IPFW_TMFLAGS_LIMIT 0x0002 /* Change limit value */ 1035 #define IPFW_TMFLAGS_LOCK 0x0004 /* Change table lock state */ 1036 1037 typedef struct _ipfw_iface_info { 1038 char ifname[64]; /* interface name */ 1039 uint32_t ifindex; /* interface index */ 1040 uint32_t flags; /* flags */ 1041 uint32_t refcnt; /* number of references */ 1042 uint32_t gencnt; /* number of changes */ 1043 uint64_t spare; 1044 } ipfw_iface_info; 1045 #define IPFW_IFFLAG_RESOLVED 0x01 /* Interface exists */ 1046 1047 typedef struct _ipfw_ta_info { 1048 char algoname[64]; /* algorithm name */ 1049 uint32_t type; /* lookup type */ 1050 uint32_t flags; 1051 uint32_t refcnt; 1052 uint32_t spare0; 1053 uint64_t spare1; 1054 } ipfw_ta_info; 1055 1056 typedef struct _ipfw_obj_header { 1057 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1058 uint32_t spare; 1059 uint16_t idx; /* object name index */ 1060 uint8_t objtype; /* object type */ 1061 uint8_t objsubtype; /* object subtype */ 1062 ipfw_obj_ntlv ntlv; /* object name tlv */ 1063 } ipfw_obj_header; 1064 1065 typedef struct _ipfw_obj_lheader { 1066 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1067 uint32_t set_mask; /* disabled set mask */ 1068 uint32_t count; /* Total objects count */ 1069 uint32_t size; /* Total size (incl. header) */ 1070 uint32_t objsize; /* Size of one object */ 1071 } ipfw_obj_lheader; 1072 1073 #define IPFW_CFG_GET_STATIC 0x01 1074 #define IPFW_CFG_GET_STATES 0x02 1075 #define IPFW_CFG_GET_COUNTERS 0x04 1076 typedef struct _ipfw_cfg_lheader { 1077 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1078 uint32_t set_mask; /* enabled set mask */ 1079 uint32_t spare; 1080 uint32_t flags; /* Request flags */ 1081 uint32_t size; /* neded buffer size */ 1082 uint32_t start_rule; 1083 uint32_t end_rule; 1084 } ipfw_cfg_lheader; 1085 1086 typedef struct _ipfw_range_header { 1087 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1088 ipfw_range_tlv range; 1089 } ipfw_range_header; 1090 1091 typedef struct _ipfw_sopt_info { 1092 uint16_t opcode; 1093 uint8_t version; 1094 uint8_t dir; 1095 uint8_t spare; 1096 uint64_t refcnt; 1097 } ipfw_sopt_info; 1098 1099 #endif /* _IPFW2_H */ 1100