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