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 #define IP_FW3_OPVER_0 0 79 #define IP_FW3_OPVER_1 1 /* 32bit rulenum */ 80 #define IP_FW3_OPVER IP_FW3_OPVER_1 81 82 /* IP_FW3 opcodes */ 83 #define IP_FW_TABLE_XADD 86 /* add entry */ 84 #define IP_FW_TABLE_XDEL 87 /* delete entry */ 85 #define IP_FW_TABLE_XGETSIZE 88 /* get table size (deprecated) */ 86 #define IP_FW_TABLE_XLIST 89 /* list table contents */ 87 #define IP_FW_TABLE_XDESTROY 90 /* destroy table */ 88 #define IP_FW_TABLES_XLIST 92 /* list all tables */ 89 #define IP_FW_TABLE_XINFO 93 /* request info for one table */ 90 #define IP_FW_TABLE_XFLUSH 94 /* flush table data */ 91 #define IP_FW_TABLE_XCREATE 95 /* create new table */ 92 #define IP_FW_TABLE_XMODIFY 96 /* modify existing table */ 93 #define IP_FW_XGET 97 /* Retrieve configuration */ 94 #define IP_FW_XADD 98 /* add rule */ 95 #define IP_FW_XDEL 99 /* del rule */ 96 #define IP_FW_XMOVE 100 /* move rules to different set */ 97 #define IP_FW_XZERO 101 /* clear accounting */ 98 #define IP_FW_XRESETLOG 102 /* zero rules logs */ 99 #define IP_FW_SET_SWAP 103 /* Swap between 2 sets */ 100 #define IP_FW_SET_MOVE 104 /* Move one set to another one */ 101 #define IP_FW_SET_ENABLE 105 /* Enable/disable sets */ 102 #define IP_FW_TABLE_XFIND 106 /* finds an entry */ 103 #define IP_FW_XIFLIST 107 /* list tracked interfaces */ 104 #define IP_FW_TABLES_ALIST 108 /* list table algorithms */ 105 #define IP_FW_TABLE_XSWAP 109 /* swap two tables */ 106 #define IP_FW_TABLE_VLIST 110 /* dump table value hash */ 107 108 #define IP_FW_NAT44_XCONFIG 111 /* Create/modify NAT44 instance */ 109 #define IP_FW_NAT44_DESTROY 112 /* Destroys NAT44 instance */ 110 #define IP_FW_NAT44_XGETCONFIG 113 /* Get NAT44 instance config */ 111 #define IP_FW_NAT44_LIST_NAT 114 /* List all NAT44 instances */ 112 #define IP_FW_NAT44_XGETLOG 115 /* Get log from NAT44 instance */ 113 114 #define IP_FW_DUMP_SOPTCODES 116 /* Dump available sopts/versions */ 115 #define IP_FW_DUMP_SRVOBJECTS 117 /* Dump existing named objects */ 116 #define IP_FW_SKIPTO_CACHE 118 /* Manage skipto cache */ 117 118 #define IP_FW_NAT64STL_CREATE 130 /* Create stateless NAT64 instance */ 119 #define IP_FW_NAT64STL_DESTROY 131 /* Destroy stateless NAT64 instance */ 120 #define IP_FW_NAT64STL_CONFIG 132 /* Modify stateless NAT64 instance */ 121 #define IP_FW_NAT64STL_LIST 133 /* List stateless NAT64 instances */ 122 #define IP_FW_NAT64STL_STATS 134 /* Get NAT64STL instance statistics */ 123 #define IP_FW_NAT64STL_RESET_STATS 135 /* Reset NAT64STL instance statistics */ 124 125 #define IP_FW_NAT64LSN_CREATE 140 /* Create stateful NAT64 instance */ 126 #define IP_FW_NAT64LSN_DESTROY 141 /* Destroy stateful NAT64 instance */ 127 #define IP_FW_NAT64LSN_CONFIG 142 /* Modify stateful NAT64 instance */ 128 #define IP_FW_NAT64LSN_LIST 143 /* List stateful NAT64 instances */ 129 #define IP_FW_NAT64LSN_STATS 144 /* Get NAT64LSN instance statistics */ 130 #define IP_FW_NAT64LSN_LIST_STATES 145 /* Get stateful NAT64 states */ 131 #define IP_FW_NAT64LSN_RESET_STATS 146 /* Reset NAT64LSN instance statistics */ 132 133 #define IP_FW_NPTV6_CREATE 150 /* Create NPTv6 instance */ 134 #define IP_FW_NPTV6_DESTROY 151 /* Destroy NPTv6 instance */ 135 #define IP_FW_NPTV6_CONFIG 152 /* Modify NPTv6 instance */ 136 #define IP_FW_NPTV6_LIST 153 /* List NPTv6 instances */ 137 #define IP_FW_NPTV6_STATS 154 /* Get NPTv6 instance statistics */ 138 #define IP_FW_NPTV6_RESET_STATS 155 /* Reset NPTv6 instance statistics */ 139 140 #define IP_FW_NAT64CLAT_CREATE 160 /* Create clat NAT64 instance */ 141 #define IP_FW_NAT64CLAT_DESTROY 161 /* Destroy clat NAT64 instance */ 142 #define IP_FW_NAT64CLAT_CONFIG 162 /* Modify clat NAT64 instance */ 143 #define IP_FW_NAT64CLAT_LIST 163 /* List clat NAT64 instances */ 144 #define IP_FW_NAT64CLAT_STATS 164 /* Get NAT64CLAT instance statistics */ 145 #define IP_FW_NAT64CLAT_RESET_STATS 165 /* Reset NAT64CLAT instance statistics */ 146 147 /* 148 * The kernel representation of ipfw rules is made of a list of 149 * 'instructions' (for all practical purposes equivalent to BPF 150 * instructions), which specify which fields of the packet 151 * (or its metadata) should be analysed. 152 * 153 * Each instruction is stored in a structure which begins with 154 * "ipfw_insn", and can contain extra fields depending on the 155 * instruction type (listed below). 156 * Note that the code is written so that individual instructions 157 * have a size which is a multiple of 32 bits. This means that, if 158 * such structures contain pointers or other 64-bit entities, 159 * (there is just one instance now) they may end up unaligned on 160 * 64-bit architectures, so the must be handled with care. 161 * 162 * "enum ipfw_opcodes" are the opcodes supported. We can have up 163 * to 256 different opcodes. When adding new opcodes, they should 164 * be appended to the end of the opcode list before O_LAST_OPCODE, 165 * this will prevent the ABI from being broken, otherwise users 166 * will have to recompile ipfw(8) when they update the kernel. 167 */ 168 169 enum ipfw_opcodes { /* arguments (4 byte each) */ 170 O_NOP, 171 172 O_IP_SRC, /* u32 = IP */ 173 O_IP_SRC_MASK, /* ip = IP/mask */ 174 O_IP_SRC_ME, /* none */ 175 O_IP_SRC_SET, /* u32=base, arg1=len, bitmap */ 176 177 O_IP_DST, /* u32 = IP */ 178 O_IP_DST_MASK, /* ip = IP/mask */ 179 O_IP_DST_ME, /* none */ 180 O_IP_DST_SET, /* u32=base, arg1=len, bitmap */ 181 182 O_IP_SRCPORT, /* (n)port list:mask 4 byte ea */ 183 O_IP_DSTPORT, /* (n)port list:mask 4 byte ea */ 184 O_PROTO, /* arg1=protocol */ 185 186 O_MACADDR2, /* 2 mac addr:mask */ 187 O_MAC_TYPE, /* same as srcport */ 188 189 O_LAYER2, /* none */ 190 O_IN, /* none */ 191 O_FRAG, /* none */ 192 193 O_RECV, /* none */ 194 O_XMIT, /* none */ 195 O_VIA, /* none */ 196 197 O_IPOPT, /* arg1 = 2*u8 bitmap */ 198 O_IPLEN, /* arg1 = len */ 199 O_IPID, /* arg1 = id */ 200 201 O_IPTOS, /* arg1 = id */ 202 O_IPPRECEDENCE, /* arg1 = precedence << 5 */ 203 O_IPTTL, /* arg1 = TTL */ 204 205 O_IPVER, /* arg1 = version */ 206 O_UID, /* u32 = id */ 207 O_GID, /* u32 = id */ 208 O_ESTAB, /* none (tcp established) */ 209 O_TCPFLAGS, /* arg1 = 2*u8 bitmap */ 210 O_TCPWIN, /* arg1 = desired win */ 211 O_TCPSEQ, /* u32 = desired seq. */ 212 O_TCPACK, /* u32 = desired seq. */ 213 O_ICMPTYPE, /* u32 = icmp bitmap */ 214 O_TCPOPTS, /* arg1 = 2*u8 bitmap */ 215 216 O_VERREVPATH, /* none */ 217 O_VERSRCREACH, /* none */ 218 219 O_PROBE_STATE, /* v0:arg1=kidx, v1:kidx=kidx */ 220 O_KEEP_STATE, /* v0:arg1=kidx, v1:kidx=kidx */ 221 O_LIMIT, /* ipfw_insn_limit */ 222 O_LIMIT_PARENT, /* dyn_type, not an opcode. */ 223 224 /* 225 * These are really 'actions'. 226 */ 227 228 O_LOG, /* ipfw_insn_log */ 229 O_PROB, /* u32 = match probability */ 230 231 O_CHECK_STATE, /* v0:arg1=kidx, v1:kidx=kidx */ 232 O_ACCEPT, /* none */ 233 O_DENY, /* none */ 234 O_REJECT, /* arg1=icmp arg (same as deny) */ 235 O_COUNT, /* none */ 236 O_SKIPTO, /* v0:arg1=next rule number */ 237 /* v1:kidx= next rule number */ 238 O_PIPE, /* arg1=pipe number */ 239 O_QUEUE, /* arg1=queue number */ 240 O_DIVERT, /* arg1=port number */ 241 O_TEE, /* arg1=port number */ 242 O_FORWARD_IP, /* fwd sockaddr */ 243 O_FORWARD_MAC, /* fwd mac */ 244 O_NAT, /* nope */ 245 O_REASS, /* none */ 246 247 /* 248 * More opcodes. 249 */ 250 O_IPSEC, /* has ipsec history */ 251 O_IP_SRC_LOOKUP, /* v0:arg1=table number, u32=value */ 252 /* v1:kidx=name, u32=value, arg1=key */ 253 O_IP_DST_LOOKUP, /* arg1=table number, u32=value */ 254 /* v1:kidx=name, u32=value, arg1=key */ 255 O_ANTISPOOF, /* none */ 256 O_JAIL, /* u32 = id */ 257 O_ALTQ, /* u32 = altq classif. qid */ 258 O_DIVERTED, /* arg1=bitmap (1:loop, 2:out) */ 259 O_TCPDATALEN, /* arg1 = tcp data len */ 260 O_IP6_SRC, /* address without mask */ 261 O_IP6_SRC_ME, /* my addresses */ 262 O_IP6_SRC_MASK, /* address with the mask */ 263 O_IP6_DST, 264 O_IP6_DST_ME, 265 O_IP6_DST_MASK, 266 O_FLOW6ID, /* for flow id tag in the ipv6 pkt */ 267 O_ICMP6TYPE, /* icmp6 packet type filtering */ 268 O_EXT_HDR, /* filtering for ipv6 extension header */ 269 O_IP6, 270 271 /* 272 * actions for ng_ipfw 273 */ 274 O_NETGRAPH, /* send to ng_ipfw */ 275 O_NGTEE, /* copy to ng_ipfw */ 276 277 O_IP4, 278 279 O_UNREACH6, /* arg1=icmpv6 code arg (deny) */ 280 281 O_TAG, /* arg1=tag number */ 282 O_TAGGED, /* arg1=tag number */ 283 284 O_SETFIB, /* arg1=FIB number */ 285 O_FIB, /* arg1=FIB desired fib number */ 286 287 O_SOCKARG, /* socket argument */ 288 289 O_CALLRETURN, /* v0:arg1=called rule number */ 290 /* v1:kidx=called rule number */ 291 292 O_FORWARD_IP6, /* fwd sockaddr_in6 */ 293 294 O_DSCP, /* 2 u32 = DSCP mask */ 295 O_SETDSCP, /* arg1=DSCP value */ 296 O_IP_FLOW_LOOKUP, /* v0:arg1=table number, u32=value */ 297 /* v1:kidx=name, u32=value */ 298 299 O_EXTERNAL_ACTION, /* v0:arg1=id of external action handler */ 300 /* v1:kidx=id of external action handler */ 301 O_EXTERNAL_INSTANCE, /* v0:arg1=id of eaction handler instance */ 302 /* v1:kidx=id of eaction handler instance */ 303 O_EXTERNAL_DATA, /* variable length data */ 304 305 O_SKIP_ACTION, /* none */ 306 O_TCPMSS, /* arg1=MSS value */ 307 308 O_MAC_SRC_LOOKUP, /* kidx=name, u32=value, arg1=key */ 309 O_MAC_DST_LOOKUP, /* kidx=name, u32=value, arg1=key */ 310 311 O_SETMARK, /* u32 = value */ 312 O_MARK, /* 2 u32 = value, bitmask */ 313 314 O_LAST_OPCODE /* not an opcode! */ 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 typedef struct _ipfw_insn_kidx { 392 ipfw_insn o; 393 uint32_t kidx; 394 } ipfw_insn_kidx; 395 396 /* 397 * This is used to store IP addr-mask pairs. 398 */ 399 typedef struct _ipfw_insn_ip { 400 ipfw_insn o; 401 struct in_addr addr; 402 struct in_addr mask; 403 } ipfw_insn_ip; 404 405 typedef struct _ipfw_insn_table { 406 ipfw_insn o; /* arg1 is optional lookup key */ 407 uint32_t kidx; /* table name index */ 408 uint32_t value; /* table value */ 409 } ipfw_insn_table; 410 411 #define IPFW_LOOKUP_TYPE_MASK 0x00FF 412 #define IPFW_LOOKUP_TYPE(insn) ((insn)->arg1 & IPFW_LOOKUP_TYPE_MASK) 413 #define IPFW_SET_LOOKUP_TYPE(insn, type) do { \ 414 (insn)->arg1 &= ~IPFW_LOOKUP_TYPE_MASK; \ 415 (insn)->arg1 |= (type) & IPFW_LOOKUP_TYPE_MASK; \ 416 } while (0) 417 418 /* 419 * Defines key types used by lookup instruction 420 */ 421 enum ipfw_table_lookup_type { 422 LOOKUP_NONE = 0, 423 LOOKUP_DST_IP, 424 LOOKUP_SRC_IP, 425 LOOKUP_DST_PORT, 426 LOOKUP_SRC_PORT, 427 LOOKUP_UID, 428 LOOKUP_JAIL, 429 LOOKUP_DSCP, 430 LOOKUP_DST_MAC, 431 LOOKUP_SRC_MAC, 432 LOOKUP_MARK, 433 LOOKUP_RULENUM, 434 }; 435 436 enum ipfw_return_type { 437 RETURN_NEXT_RULENUM = 0, 438 RETURN_NEXT_RULE, 439 }; 440 441 enum ipfw_skipto_cache_op { 442 SKIPTO_CACHE_DISABLE = 0, 443 SKIPTO_CACHE_ENABLE, 444 }; 445 446 /* 447 * This is used to forward to a given address (ip). 448 */ 449 typedef struct _ipfw_insn_sa { 450 ipfw_insn o; 451 struct sockaddr_in sa; 452 } ipfw_insn_sa; 453 454 /* 455 * This is used to forward to a given address (ipv6). 456 */ 457 typedef struct _ipfw_insn_sa6 { 458 ipfw_insn o; 459 struct sockaddr_in6 sa; 460 } ipfw_insn_sa6; 461 462 /* 463 * This is used for MAC addr-mask pairs. 464 */ 465 typedef struct _ipfw_insn_mac { 466 ipfw_insn o; 467 u_char addr[12]; /* dst[6] + src[6] */ 468 u_char mask[12]; /* dst[6] + src[6] */ 469 } ipfw_insn_mac; 470 471 /* 472 * This is used for interface match rules (recv xx, xmit xx). 473 */ 474 typedef struct _ipfw_insn_if { 475 ipfw_insn o; 476 union { 477 struct in_addr ip; 478 int glob; 479 uint16_t kidx_v0; 480 uint32_t kidx; 481 } p; 482 char name[IFNAMSIZ]; 483 } ipfw_insn_if; 484 485 /* 486 * This is used for storing an altq queue id number. 487 */ 488 typedef struct _ipfw_insn_altq { 489 ipfw_insn o; 490 u_int32_t qid; 491 } ipfw_insn_altq; 492 493 /* 494 * This is used for limit rules. 495 */ 496 typedef struct _ipfw_insn_limit { 497 ipfw_insn o; 498 u_int32_t kidx; 499 u_int8_t _pad; 500 u_int8_t limit_mask; /* combination of DYN_* below */ 501 #define DYN_SRC_ADDR 0x1 502 #define DYN_SRC_PORT 0x2 503 #define DYN_DST_ADDR 0x4 504 #define DYN_DST_PORT 0x8 505 506 u_int16_t conn_limit; 507 } ipfw_insn_limit; 508 509 /* MAC/InfiniBand/etc address length */ 510 #define IPFW_MAX_L2_ADDR_LEN 20 511 512 /* 513 * This is used for log instructions. 514 */ 515 typedef struct _ipfw_insn_log { 516 ipfw_insn o; 517 u_int32_t max_log; /* how many do we log -- 0 = all */ 518 u_int32_t log_left; /* how many left to log */ 519 } ipfw_insn_log; 520 521 /* ipfw_insn_log->o.arg1 bitmasks */ 522 #define IPFW_LOG_DEFAULT 0x0000 523 #define IPFW_LOG_SYSLOG (1 << 15) 524 #define IPFW_LOG_IPFW0 (1 << 14) 525 #define IPFW_LOG_RTSOCK (1 << 13) 526 527 typedef struct _ipfwlog_rtsock_hdr_v2 { 528 uint32_t rulenum; 529 uint32_t tablearg; 530 ipfw_insn cmd; 531 u_char ether_shost[IPFW_MAX_L2_ADDR_LEN]; 532 u_char ether_dhost[IPFW_MAX_L2_ADDR_LEN]; 533 uint32_t mark; 534 char comment[0]; 535 } ipfwlog_rtsock_hdr_v2; 536 537 /* Legacy NAT structures, compat only */ 538 #ifndef _KERNEL 539 /* 540 * Data structures required by both ipfw(8) and ipfw(4) but not part of the 541 * management API are protected by IPFW_INTERNAL. 542 */ 543 #ifdef IPFW_INTERNAL 544 /* Server pool support (LSNAT). */ 545 struct cfg_spool { 546 LIST_ENTRY(cfg_spool) _next; /* chain of spool instances */ 547 struct in_addr addr; 548 u_short port; 549 }; 550 #endif 551 552 /* Redirect modes id. */ 553 #define REDIR_ADDR 0x01 554 #define REDIR_PORT 0x02 555 #define REDIR_PROTO 0x04 556 557 #ifdef IPFW_INTERNAL 558 /* Nat redirect configuration. */ 559 struct cfg_redir { 560 LIST_ENTRY(cfg_redir) _next; /* chain of redir instances */ 561 u_int16_t mode; /* type of redirect mode */ 562 struct in_addr laddr; /* local ip address */ 563 struct in_addr paddr; /* public ip address */ 564 struct in_addr raddr; /* remote ip address */ 565 u_short lport; /* local port */ 566 u_short pport; /* public port */ 567 u_short rport; /* remote port */ 568 u_short pport_cnt; /* number of public ports */ 569 u_short rport_cnt; /* number of remote ports */ 570 int proto; /* protocol: tcp/udp */ 571 struct alias_link **alink; 572 /* num of entry in spool chain */ 573 u_int16_t spool_cnt; 574 /* chain of spool instances */ 575 LIST_HEAD(spool_chain, cfg_spool) spool_chain; 576 }; 577 #endif 578 579 #ifdef IPFW_INTERNAL 580 /* Nat configuration data struct. */ 581 struct cfg_nat { 582 /* chain of nat instances */ 583 LIST_ENTRY(cfg_nat) _next; 584 int id; /* nat id */ 585 struct in_addr ip; /* nat ip address */ 586 char if_name[IF_NAMESIZE]; /* interface name */ 587 int mode; /* aliasing mode */ 588 struct libalias *lib; /* libalias instance */ 589 /* number of entry in spool chain */ 590 int redir_cnt; 591 /* chain of redir instances */ 592 LIST_HEAD(redir_chain, cfg_redir) redir_chain; 593 }; 594 #endif 595 596 #define SOF_NAT sizeof(struct cfg_nat) 597 #define SOF_REDIR sizeof(struct cfg_redir) 598 #define SOF_SPOOL sizeof(struct cfg_spool) 599 600 #endif /* ifndef _KERNEL */ 601 602 struct nat44_cfg_spool { 603 struct in_addr addr; 604 uint16_t port; 605 uint16_t spare; 606 }; 607 #define NAT44_REDIR_ADDR 0x01 608 #define NAT44_REDIR_PORT 0x02 609 #define NAT44_REDIR_PROTO 0x04 610 611 /* Nat redirect configuration. */ 612 struct nat44_cfg_redir { 613 struct in_addr laddr; /* local ip address */ 614 struct in_addr paddr; /* public ip address */ 615 struct in_addr raddr; /* remote ip address */ 616 uint16_t lport; /* local port */ 617 uint16_t pport; /* public port */ 618 uint16_t rport; /* remote port */ 619 uint16_t pport_cnt; /* number of public ports */ 620 uint16_t rport_cnt; /* number of remote ports */ 621 uint16_t mode; /* type of redirect mode */ 622 uint16_t spool_cnt; /* num of entry in spool chain */ 623 uint16_t spare; 624 uint32_t proto; /* protocol: tcp/udp */ 625 }; 626 627 /* Nat configuration data struct. */ 628 struct nat44_cfg_nat { 629 char name[64]; /* nat name */ 630 char if_name[64]; /* interface name */ 631 uint32_t size; /* structure size incl. redirs */ 632 struct in_addr ip; /* nat IPv4 address */ 633 uint32_t mode; /* aliasing mode */ 634 uint32_t redir_cnt; /* number of entry in spool chain */ 635 u_short alias_port_lo; /* low range for port aliasing */ 636 u_short alias_port_hi; /* high range for port aliasing */ 637 }; 638 639 /* Nat command. */ 640 typedef struct _ipfw_insn_nat { 641 ipfw_insn o; 642 struct cfg_nat *nat; 643 } ipfw_insn_nat; 644 645 /* Apply ipv6 mask on ipv6 addr */ 646 #define APPLY_MASK(addr,mask) do { \ 647 (addr)->__u6_addr.__u6_addr32[0] &= (mask)->__u6_addr.__u6_addr32[0]; \ 648 (addr)->__u6_addr.__u6_addr32[1] &= (mask)->__u6_addr.__u6_addr32[1]; \ 649 (addr)->__u6_addr.__u6_addr32[2] &= (mask)->__u6_addr.__u6_addr32[2]; \ 650 (addr)->__u6_addr.__u6_addr32[3] &= (mask)->__u6_addr.__u6_addr32[3]; \ 651 } while (0) 652 653 /* Structure for ipv6 */ 654 typedef struct _ipfw_insn_ip6 { 655 ipfw_insn o; 656 struct in6_addr addr6; 657 struct in6_addr mask6; 658 } ipfw_insn_ip6; 659 660 /* Used to support icmp6 types */ 661 typedef struct _ipfw_insn_icmp6 { 662 ipfw_insn o; 663 uint32_t d[7]; /* XXX This number si related to the netinet/icmp6.h 664 * define ICMP6_MAXTYPE 665 * as follows: n = ICMP6_MAXTYPE/32 + 1 666 * Actually is 203 667 */ 668 } ipfw_insn_icmp6; 669 670 /* Convert pointer to instruction with specified type */ 671 #define insntod(p, type) ((ipfw_insn_ ## type *)(p)) 672 #define insntoc(p, type) ((const ipfw_insn_ ## type *)(p)) 673 674 /* 675 * Here we have the structure representing an ipfw rule. 676 * 677 * Layout: 678 * struct ip_fw_rule 679 * [ counter block, size = rule->cntr_len ] 680 * [ one or more instructions, size = rule->cmd_len * 4 ] 681 * 682 * It starts with a general area (with link fields). 683 * Counter block may be next (if rule->cntr_len > 0), 684 * followed by an array of one or more instructions, which the code 685 * accesses as an array of 32-bit values. rule->cmd_len represents 686 * the total instructions legth in u32 worrd, while act_ofs represents 687 * rule action offset in u32 words. 688 * 689 * When assembling instruction, remember the following: 690 * 691 * + if a rule has a "keep-state" (or "limit") option, then the 692 * first instruction (at r->cmd) MUST BE an O_PROBE_STATE 693 * + if a rule has a "log" option, then the first action 694 * (at ACTION_PTR(r)) MUST be O_LOG 695 * + if a rule has an "altq" option, it comes after "log" 696 * + if a rule has an O_TAG option, it comes after "log" and "altq" 697 * 698 * 699 * All structures (excluding instructions) are u64-aligned. 700 * Please keep this. 701 */ 702 703 struct ip_fw_rule { 704 uint16_t act_ofs; /* offset of action in 32-bit units */ 705 uint16_t cmd_len; /* # of 32-bit words in cmd */ 706 uint16_t spare; 707 uint8_t set; /* rule set (0..31) */ 708 uint8_t flags; /* rule flags */ 709 uint32_t rulenum; /* rule number */ 710 uint32_t id; /* rule id */ 711 712 ipfw_insn cmd[1]; /* storage for commands */ 713 }; 714 #define IPFW_RULE_NOOPT 0x01 /* Has no options in body */ 715 #define IPFW_RULE_JUSTOPTS 0x02 /* new format of rule body */ 716 717 /* Unaligned version */ 718 719 /* Base ipfw rule counter block. */ 720 struct ip_fw_bcounter { 721 uint16_t size; /* Size of counter block, bytes */ 722 uint8_t flags; /* flags for given block */ 723 uint8_t spare; 724 uint32_t timestamp; /* tv_sec of last match */ 725 uint64_t pcnt; /* Packet counter */ 726 uint64_t bcnt; /* Byte counter */ 727 }; 728 729 #ifndef _KERNEL 730 /* 731 * Legacy rule format 732 */ 733 struct ip_fw { 734 struct ip_fw *x_next; /* linked list of rules */ 735 struct ip_fw *next_rule; /* ptr to next [skipto] rule */ 736 /* 'next_rule' is used to pass up 'set_disable' status */ 737 738 uint16_t act_ofs; /* offset of action in 32-bit units */ 739 uint16_t cmd_len; /* # of 32-bit words in cmd */ 740 uint16_t rulenum; /* rule number */ 741 uint8_t set; /* rule set (0..31) */ 742 uint8_t _pad; /* padding */ 743 uint32_t id; /* rule id */ 744 745 /* These fields are present in all rules. */ 746 uint64_t pcnt; /* Packet counter */ 747 uint64_t bcnt; /* Byte counter */ 748 uint32_t timestamp; /* tv_sec of last match */ 749 750 ipfw_insn cmd[1]; /* storage for commands */ 751 }; 752 #endif 753 754 #define ACTION_PTR(rule) \ 755 (ipfw_insn *)( (u_int32_t *)((rule)->cmd) + ((rule)->act_ofs) ) 756 757 #define RULESIZE(rule) (sizeof(*(rule)) + (rule)->cmd_len * 4 - 4) 758 759 #if 1 // should be moved to in.h 760 /* 761 * This structure is used as a flow mask and a flow id for various 762 * parts of the code. 763 * addr_type is used in userland and kernel to mark the address type. 764 * fib is used in the kernel to record the fib in use. 765 * _flags is used in the kernel to store tcp flags for dynamic rules. 766 */ 767 struct ipfw_flow_id { 768 uint32_t dst_ip; 769 uint32_t src_ip; 770 uint16_t dst_port; 771 uint16_t src_port; 772 uint8_t fib; /* XXX: must be uint16_t */ 773 uint8_t proto; 774 uint8_t _flags; /* protocol-specific flags */ 775 uint8_t addr_type; /* 4=ip4, 6=ip6, 1=ether ? */ 776 struct in6_addr dst_ip6; 777 struct in6_addr src_ip6; 778 uint32_t flow_id6; 779 uint32_t extra; /* queue/pipe or frag_id */ 780 }; 781 #endif 782 783 #define IS_IP4_FLOW_ID(id) ((id)->addr_type == 4) 784 #define IS_IP6_FLOW_ID(id) ((id)->addr_type == 6) 785 786 /* 787 * Dynamic ipfw rule. 788 */ 789 #define IPFW_DYN_ORPHANED 0x40000 /* state's parent rule was deleted */ 790 791 typedef struct _ipfw_dyn_rule { 792 struct ipfw_flow_id id; /* (masked) flow id */ 793 uint8_t set; 794 uint8_t type; /* rule type */ 795 uint16_t pad; 796 uint32_t expire; /* expire time */ 797 uint32_t rulenum; /* parent's rule number */ 798 uint32_t kidx; /* index of named object */ 799 uint64_t pcnt; /* packet match counter */ 800 uint64_t bcnt; /* byte match counter */ 801 uint32_t hashval; /* hash value */ 802 union { 803 uint32_t state; /* state of this rule (typically a 804 * combination of TCP flags) 805 */ 806 uint32_t count; /* number of linked states */ 807 }; 808 uint32_t ack_fwd; /* most recent ACKs in forward */ 809 uint32_t ack_rev; /* and reverse directions (used */ 810 /* to generate keepalives) */ 811 } __packed __aligned(8) ipfw_dyn_rule; 812 813 /* 814 * Definitions for IP option names. 815 */ 816 #define IP_FW_IPOPT_LSRR 0x01 817 #define IP_FW_IPOPT_SSRR 0x02 818 #define IP_FW_IPOPT_RR 0x04 819 #define IP_FW_IPOPT_TS 0x08 820 821 /* 822 * Definitions for TCP option names. 823 */ 824 #define IP_FW_TCPOPT_MSS 0x01 825 #define IP_FW_TCPOPT_WINDOW 0x02 826 #define IP_FW_TCPOPT_SACK 0x04 827 #define IP_FW_TCPOPT_TS 0x08 828 #define IP_FW_TCPOPT_CC 0x10 829 830 #define ICMP_REJECT_RST 0x100 /* fake ICMP code (send a TCP RST) */ 831 #define ICMP6_UNREACH_RST 0x100 /* fake ICMPv6 code (send a TCP RST) */ 832 #define ICMP_REJECT_ABORT 0x101 /* fake ICMP code (send an SCTP ABORT) */ 833 #define ICMP6_UNREACH_ABORT 0x101 /* fake ICMPv6 code (send an SCTP ABORT) */ 834 835 /* 836 * These are used for lookup tables. 837 */ 838 839 #define IPFW_TABLE_ADDR 1 /* Table for holding IPv4/IPv6 prefixes */ 840 #define IPFW_TABLE_INTERFACE 2 /* Table for holding interface names */ 841 #define IPFW_TABLE_NUMBER 3 /* Table for holding ports/uid/gid/etc */ 842 #define IPFW_TABLE_FLOW 4 /* Table for holding flow data */ 843 #define IPFW_TABLE_MAC 5 /* Table for holding mac address prefixes */ 844 #define IPFW_TABLE_MAXTYPE 5 /* Maximum valid number */ 845 846 #define IPFW_TABLE_CIDR IPFW_TABLE_ADDR /* compat */ 847 848 /* Value types */ 849 #define IPFW_VTYPE_LEGACY 0xFFFFFFFF /* All data is filled in */ 850 #define IPFW_VTYPE_SKIPTO 0x00000001 /* skipto/call/callreturn */ 851 #define IPFW_VTYPE_PIPE 0x00000002 /* pipe/queue */ 852 #define IPFW_VTYPE_FIB 0x00000004 /* setfib */ 853 #define IPFW_VTYPE_NAT 0x00000008 /* nat */ 854 #define IPFW_VTYPE_DSCP 0x00000010 /* dscp */ 855 #define IPFW_VTYPE_TAG 0x00000020 /* tag/untag */ 856 #define IPFW_VTYPE_DIVERT 0x00000040 /* divert/tee */ 857 #define IPFW_VTYPE_NETGRAPH 0x00000080 /* netgraph/ngtee */ 858 #define IPFW_VTYPE_LIMIT 0x00000100 /* limit */ 859 #define IPFW_VTYPE_NH4 0x00000200 /* IPv4 nexthop */ 860 #define IPFW_VTYPE_NH6 0x00000400 /* IPv6 nexthop */ 861 #define IPFW_VTYPE_MARK 0x00000800 /* [fw]mark */ 862 863 typedef struct _ipfw_table_xentry { 864 uint16_t len; /* Total entry length */ 865 uint8_t type; /* entry type */ 866 uint8_t masklen; /* mask length */ 867 uint16_t tbl; /* table number */ 868 uint16_t flags; /* record flags */ 869 uint32_t value; /* value */ 870 union { 871 /* Longest field needs to be aligned by 4-byte boundary */ 872 struct in6_addr addr6; /* IPv6 address */ 873 char iface[IF_NAMESIZE]; /* interface name */ 874 } k; 875 } ipfw_table_xentry; 876 #define IPFW_TCF_INET 0x01 /* CIDR flags: IPv4 record */ 877 878 typedef struct _ipfw_xtable { 879 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 880 uint32_t size; /* size of entries in bytes */ 881 uint32_t cnt; /* # of entries */ 882 uint16_t tbl; /* table number */ 883 uint8_t type; /* table type */ 884 ipfw_table_xentry xent[0]; /* entries */ 885 } ipfw_xtable; 886 887 typedef struct _ipfw_obj_tlv { 888 uint16_t type; /* TLV type */ 889 uint16_t flags; /* TLV-specific flags */ 890 uint32_t length; /* Total length, aligned to u64 */ 891 } ipfw_obj_tlv; 892 #define IPFW_TLV_TBL_NAME 1 893 #define IPFW_TLV_TBLNAME_LIST 2 894 #define IPFW_TLV_RULE_LIST 3 895 #define IPFW_TLV_DYNSTATE_LIST 4 896 #define IPFW_TLV_TBL_ENT 5 897 #define IPFW_TLV_DYN_ENT 6 898 #define IPFW_TLV_RULE_ENT 7 899 #define IPFW_TLV_TBLENT_LIST 8 900 #define IPFW_TLV_RANGE 9 901 #define IPFW_TLV_EACTION 10 902 #define IPFW_TLV_COUNTERS 11 903 #define IPFW_TLV_OBJDATA 12 904 #define IPFW_TLV_STATE_NAME 14 905 906 #define IPFW_TLV_EACTION_BASE 1000 907 #define IPFW_TLV_EACTION_NAME(arg) (IPFW_TLV_EACTION_BASE + (arg)) 908 909 typedef struct _ipfw_obj_data { 910 ipfw_obj_tlv head; 911 void *data[0]; 912 } ipfw_obj_data; 913 914 /* Object name TLV */ 915 typedef struct _ipfw_obj_ntlv { 916 ipfw_obj_tlv head; /* TLV header */ 917 uint32_t idx; /* Name index */ 918 uint8_t set; /* set, if applicable */ 919 uint8_t type; /* object type, if applicable */ 920 uint16_t spare; /* unused */ 921 char name[64]; /* Null-terminated name */ 922 } ipfw_obj_ntlv; 923 924 /* IPv4/IPv6 L4 flow description */ 925 struct tflow_entry { 926 uint8_t af; 927 uint8_t proto; 928 uint16_t spare; 929 uint16_t sport; 930 uint16_t dport; 931 union { 932 struct { 933 struct in_addr sip; 934 struct in_addr dip; 935 } a4; 936 struct { 937 struct in6_addr sip6; 938 struct in6_addr dip6; 939 } a6; 940 } a; 941 }; 942 943 #define IPFW_TVALUE_TYPE_MASK 0xFF00 944 #define IPFW_TVALUE_TYPE(insn) (((insn)->arg1 & IPFW_TVALUE_TYPE_MASK) >> 8) 945 #define IPFW_SET_TVALUE_TYPE(insn, type) do { \ 946 (insn)->arg1 &= ~IPFW_TVALUE_TYPE_MASK; \ 947 (insn)->arg1 |= ((type) << 8) & IPFW_TVALUE_TYPE_MASK; \ 948 } while (0) 949 950 enum ipfw_table_value_type { 951 TVALUE_TAG = 0, 952 TVALUE_PIPE, 953 TVALUE_DIVERT, 954 TVALUE_SKIPTO, 955 TVALUE_NETGRAPH, 956 TVALUE_FIB, 957 TVALUE_NAT, 958 TVALUE_NH4, 959 TVALUE_DSCP, 960 TVALUE_LIMIT, 961 TVALUE_MARK, 962 }; 963 964 /* 64-byte structure representing multi-field table value */ 965 typedef struct _ipfw_table_value { 966 uint32_t tag; /* O_TAG/O_TAGGED */ 967 uint16_t pipe; /* O_PIPE/O_QUEUE */ 968 uint16_t divert; /* O_DIVERT/O_TEE */ 969 uint32_t skipto; /* skipto, CALLRET */ 970 uint32_t netgraph; /* O_NETGRAPH/O_NGTEE */ 971 uint32_t nat; /* O_NAT */ 972 uint32_t nh4; 973 uint16_t fib; /* O_SETFIB */ 974 uint8_t dscp; 975 uint8_t spare0; 976 uint32_t kidx; /* value kernel index */ 977 struct in6_addr nh6; 978 uint32_t limit; /* O_LIMIT */ 979 uint32_t zoneid; /* scope zone id for nh6 */ 980 uint32_t mark; /* O_SETMARK/O_MARK */ 981 uint32_t refcnt; /* XXX 64-bit in kernel */ 982 } ipfw_table_value; 983 984 /* Table entry TLV */ 985 typedef struct _ipfw_obj_tentry { 986 ipfw_obj_tlv head; /* TLV header */ 987 uint8_t subtype; /* subtype (IPv4,IPv6) */ 988 uint8_t masklen; /* mask length */ 989 uint8_t result; /* request result */ 990 uint8_t spare0; 991 uint32_t idx; /* Table name index */ 992 union { 993 /* Longest field needs to be aligned by 8-byte boundary */ 994 struct in_addr addr; /* IPv4 address */ 995 uint32_t key; /* uid/gid/port */ 996 struct in6_addr addr6; /* IPv6 address */ 997 char iface[IF_NAMESIZE]; /* interface name */ 998 u_char mac[IPFW_MAX_L2_ADDR_LEN]; /* MAC address */ 999 struct tflow_entry flow; 1000 } k; 1001 union { 1002 ipfw_table_value value; /* value data */ 1003 uint32_t kidx; /* value kernel index */ 1004 } v; 1005 } ipfw_obj_tentry; 1006 #define IPFW_TF_UPDATE 0x01 /* Update record if exists */ 1007 /* Container TLV */ 1008 #define IPFW_CTF_ATOMIC 0x01 /* Perform atomic operation */ 1009 /* Operation results */ 1010 #define IPFW_TR_IGNORED 0 /* Entry was ignored (rollback) */ 1011 #define IPFW_TR_ADDED 1 /* Entry was successfully added */ 1012 #define IPFW_TR_UPDATED 2 /* Entry was successfully updated*/ 1013 #define IPFW_TR_DELETED 3 /* Entry was successfully deleted*/ 1014 #define IPFW_TR_LIMIT 4 /* Entry was ignored (limit) */ 1015 #define IPFW_TR_NOTFOUND 5 /* Entry was not found */ 1016 #define IPFW_TR_EXISTS 6 /* Entry already exists */ 1017 #define IPFW_TR_ERROR 7 /* Request has failed (unknown) */ 1018 1019 typedef struct _ipfw_obj_dyntlv { 1020 ipfw_obj_tlv head; 1021 ipfw_dyn_rule state; 1022 } ipfw_obj_dyntlv; 1023 #define IPFW_DF_LAST 0x01 /* Last state in chain */ 1024 1025 /* Containter TLVs */ 1026 typedef struct _ipfw_obj_ctlv { 1027 ipfw_obj_tlv head; /* TLV header */ 1028 uint32_t count; /* Number of sub-TLVs */ 1029 uint16_t objsize; /* Single object size */ 1030 uint8_t version; /* TLV version */ 1031 uint8_t flags; /* TLV-specific flags */ 1032 } ipfw_obj_ctlv; 1033 1034 /* Range TLV */ 1035 typedef struct _ipfw_range_tlv { 1036 ipfw_obj_tlv head; /* TLV header */ 1037 uint32_t flags; /* Range flags */ 1038 uint32_t start_rule; /* Range start */ 1039 uint32_t end_rule; /* Range end */ 1040 uint32_t set; /* Range set to match */ 1041 uint32_t new_set; /* New set to move/swap to */ 1042 } ipfw_range_tlv; 1043 #define IPFW_RCFLAG_RANGE 0x01 /* rule range is set */ 1044 #define IPFW_RCFLAG_ALL 0x02 /* match ALL rules */ 1045 #define IPFW_RCFLAG_SET 0x04 /* match rules in given set */ 1046 #define IPFW_RCFLAG_DYNAMIC 0x08 /* match only dynamic states */ 1047 /* User-settable flags */ 1048 #define IPFW_RCFLAG_USER (IPFW_RCFLAG_RANGE | IPFW_RCFLAG_ALL | \ 1049 IPFW_RCFLAG_SET | IPFW_RCFLAG_DYNAMIC) 1050 /* Internally used flags */ 1051 #define IPFW_RCFLAG_DEFAULT 0x0100 /* Do not skip default rule */ 1052 1053 typedef struct _ipfw_ta_tinfo { 1054 uint32_t flags; /* Format flags */ 1055 uint32_t spare; 1056 uint8_t taclass4; /* algorithm class */ 1057 uint8_t spare4; 1058 uint16_t itemsize4; /* item size in runtime */ 1059 uint32_t size4; /* runtime structure size */ 1060 uint32_t count4; /* number of items in runtime */ 1061 uint8_t taclass6; /* algorithm class */ 1062 uint8_t spare6; 1063 uint16_t itemsize6; /* item size in runtime */ 1064 uint32_t size6; /* runtime structure size */ 1065 uint32_t count6; /* number of items in runtime */ 1066 } ipfw_ta_tinfo; 1067 #define IPFW_TACLASS_HASH 1 /* algo is based on hash */ 1068 #define IPFW_TACLASS_ARRAY 2 /* algo is based on array */ 1069 #define IPFW_TACLASS_RADIX 3 /* algo is based on radix tree */ 1070 1071 #define IPFW_TATFLAGS_DATA 0x0001 /* Has data filled in */ 1072 #define IPFW_TATFLAGS_AFDATA 0x0002 /* Separate data per AF */ 1073 #define IPFW_TATFLAGS_AFITEM 0x0004 /* diff. items per AF */ 1074 1075 typedef struct _ipfw_xtable_info { 1076 uint8_t type; /* table type (addr,iface,..) */ 1077 uint8_t tflags; /* type flags */ 1078 uint16_t mflags; /* modification flags */ 1079 uint16_t flags; /* generic table flags */ 1080 uint16_t spare[3]; 1081 uint32_t vmask; /* bitmask with value types */ 1082 uint32_t set; /* set table is in */ 1083 uint32_t kidx; /* kernel index */ 1084 uint32_t refcnt; /* number of references */ 1085 uint32_t count; /* Number of records */ 1086 uint32_t size; /* Total size of records(export)*/ 1087 uint32_t limit; /* Max number of records */ 1088 char tablename[64]; /* table name */ 1089 char algoname[64]; /* algorithm name */ 1090 ipfw_ta_tinfo ta_info; /* additional algo stats */ 1091 } ipfw_xtable_info; 1092 /* Generic table flags */ 1093 #define IPFW_TGFLAGS_LOCKED 0x01 /* Tables is locked from changes*/ 1094 /* Table type-specific flags */ 1095 #define IPFW_TFFLAG_SRCIP 0x01 1096 #define IPFW_TFFLAG_DSTIP 0x02 1097 #define IPFW_TFFLAG_SRCPORT 0x04 1098 #define IPFW_TFFLAG_DSTPORT 0x08 1099 #define IPFW_TFFLAG_PROTO 0x10 1100 /* Table modification flags */ 1101 #define IPFW_TMFLAGS_LIMIT 0x0002 /* Change limit value */ 1102 #define IPFW_TMFLAGS_LOCK 0x0004 /* Change table lock state */ 1103 1104 typedef struct _ipfw_iface_info { 1105 char ifname[64]; /* interface name */ 1106 uint32_t ifindex; /* interface index */ 1107 uint32_t flags; /* flags */ 1108 uint32_t refcnt; /* number of references */ 1109 uint32_t gencnt; /* number of changes */ 1110 uint64_t spare; 1111 } ipfw_iface_info; 1112 #define IPFW_IFFLAG_RESOLVED 0x01 /* Interface exists */ 1113 1114 typedef struct _ipfw_ta_info { 1115 char algoname[64]; /* algorithm name */ 1116 uint32_t type; /* lookup type */ 1117 uint32_t flags; 1118 uint32_t refcnt; 1119 uint32_t spare0; 1120 uint64_t spare1; 1121 } ipfw_ta_info; 1122 1123 typedef struct _ipfw_cmd_header { /* control command header */ 1124 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1125 uint32_t size; /* Total size (incl. header) */ 1126 uint32_t cmd; /* command */ 1127 } ipfw_cmd_header; 1128 1129 typedef struct _ipfw_obj_header { 1130 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1131 uint32_t idx; /* object name index */ 1132 uint16_t spare; 1133 uint8_t objtype; /* object type */ 1134 uint8_t objsubtype; /* object subtype */ 1135 ipfw_obj_ntlv ntlv; /* object name tlv */ 1136 } ipfw_obj_header; 1137 1138 typedef struct _ipfw_obj_lheader { 1139 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1140 uint32_t set_mask; /* disabled set mask */ 1141 uint32_t count; /* Total objects count */ 1142 uint32_t size; /* Total size (incl. header) */ 1143 uint32_t objsize; /* Size of one object */ 1144 } ipfw_obj_lheader; 1145 1146 #define IPFW_CFG_GET_STATIC 0x01 1147 #define IPFW_CFG_GET_STATES 0x02 1148 #define IPFW_CFG_GET_COUNTERS 0x04 1149 typedef struct _ipfw_cfg_lheader { 1150 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1151 uint32_t set_mask; /* enabled set mask */ 1152 uint32_t spare; 1153 uint32_t flags; /* Request flags */ 1154 uint32_t size; /* neded buffer size */ 1155 uint32_t start_rule; 1156 uint32_t end_rule; 1157 } ipfw_cfg_lheader; 1158 1159 typedef struct _ipfw_range_header { 1160 ip_fw3_opheader opheader; /* IP_FW3 opcode */ 1161 ipfw_range_tlv range; 1162 } ipfw_range_header; 1163 1164 typedef struct _ipfw_sopt_info { 1165 uint16_t opcode; 1166 uint8_t version; 1167 uint8_t dir; 1168 uint8_t spare; 1169 uint64_t refcnt; 1170 } ipfw_sopt_info; 1171 1172 #endif /* _IPFW2_H */ 1173