1#ifndef _LINUX_NF_TABLES_H 2#define _LINUX_NF_TABLES_H 3 4#define NFT_CHAIN_MAXNAMELEN 32 5 6enum nft_registers { 7 NFT_REG_VERDICT, 8 NFT_REG_1, 9 NFT_REG_2, 10 NFT_REG_3, 11 NFT_REG_4, 12 __NFT_REG_MAX 13}; 14#define NFT_REG_MAX (__NFT_REG_MAX - 1) 15 16/** 17 * enum nft_verdicts - nf_tables internal verdicts 18 * 19 * @NFT_CONTINUE: continue evaluation of the current rule 20 * @NFT_BREAK: terminate evaluation of the current rule 21 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain 22 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack 23 * @NFT_RETURN: return to the topmost chain on the jump stack 24 * 25 * The nf_tables verdicts share their numeric space with the netfilter verdicts. 26 */ 27enum nft_verdicts { 28 NFT_CONTINUE = -1, 29 NFT_BREAK = -2, 30 NFT_JUMP = -3, 31 NFT_GOTO = -4, 32 NFT_RETURN = -5, 33}; 34 35/** 36 * enum nf_tables_msg_types - nf_tables netlink message types 37 * 38 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes) 39 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes) 40 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes) 41 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes) 42 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes) 43 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes) 44 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes) 45 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes) 46 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes) 47 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes) 48 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes) 49 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes) 50 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes) 51 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes) 52 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes) 53 */ 54enum nf_tables_msg_types { 55 NFT_MSG_NEWTABLE, 56 NFT_MSG_GETTABLE, 57 NFT_MSG_DELTABLE, 58 NFT_MSG_NEWCHAIN, 59 NFT_MSG_GETCHAIN, 60 NFT_MSG_DELCHAIN, 61 NFT_MSG_NEWRULE, 62 NFT_MSG_GETRULE, 63 NFT_MSG_DELRULE, 64 NFT_MSG_NEWSET, 65 NFT_MSG_GETSET, 66 NFT_MSG_DELSET, 67 NFT_MSG_NEWSETELEM, 68 NFT_MSG_GETSETELEM, 69 NFT_MSG_DELSETELEM, 70 NFT_MSG_MAX, 71}; 72 73/** 74 * enum nft_list_attributes - nf_tables generic list netlink attributes 75 * 76 * @NFTA_LIST_ELEM: list element (NLA_NESTED) 77 */ 78enum nft_list_attributes { 79 NFTA_LIST_UNPEC, 80 NFTA_LIST_ELEM, 81 __NFTA_LIST_MAX 82}; 83#define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1) 84 85/** 86 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes 87 * 88 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32) 89 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32) 90 */ 91enum nft_hook_attributes { 92 NFTA_HOOK_UNSPEC, 93 NFTA_HOOK_HOOKNUM, 94 NFTA_HOOK_PRIORITY, 95 __NFTA_HOOK_MAX 96}; 97#define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1) 98 99/** 100 * enum nft_table_flags - nf_tables table flags 101 * 102 * @NFT_TABLE_F_DORMANT: this table is not active 103 */ 104enum nft_table_flags { 105 NFT_TABLE_F_DORMANT = 0x1, 106}; 107 108/** 109 * enum nft_table_attributes - nf_tables table netlink attributes 110 * 111 * @NFTA_TABLE_NAME: name of the table (NLA_STRING) 112 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32) 113 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32) 114 */ 115enum nft_table_attributes { 116 NFTA_TABLE_UNSPEC, 117 NFTA_TABLE_NAME, 118 NFTA_TABLE_FLAGS, 119 NFTA_TABLE_USE, 120 __NFTA_TABLE_MAX 121}; 122#define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1) 123 124/** 125 * enum nft_chain_attributes - nf_tables chain netlink attributes 126 * 127 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING) 128 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64) 129 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING) 130 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes) 131 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32) 132 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32) 133 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING) 134 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes) 135 */ 136enum nft_chain_attributes { 137 NFTA_CHAIN_UNSPEC, 138 NFTA_CHAIN_TABLE, 139 NFTA_CHAIN_HANDLE, 140 NFTA_CHAIN_NAME, 141 NFTA_CHAIN_HOOK, 142 NFTA_CHAIN_POLICY, 143 NFTA_CHAIN_USE, 144 NFTA_CHAIN_TYPE, 145 NFTA_CHAIN_COUNTERS, 146 __NFTA_CHAIN_MAX 147}; 148#define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1) 149 150/** 151 * enum nft_rule_attributes - nf_tables rule netlink attributes 152 * 153 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING) 154 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING) 155 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64) 156 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes) 157 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes) 158 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64) 159 */ 160enum nft_rule_attributes { 161 NFTA_RULE_UNSPEC, 162 NFTA_RULE_TABLE, 163 NFTA_RULE_CHAIN, 164 NFTA_RULE_HANDLE, 165 NFTA_RULE_EXPRESSIONS, 166 NFTA_RULE_COMPAT, 167 NFTA_RULE_POSITION, 168 __NFTA_RULE_MAX 169}; 170#define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1) 171 172/** 173 * enum nft_rule_compat_flags - nf_tables rule compat flags 174 * 175 * @NFT_RULE_COMPAT_F_INV: invert the check result 176 */ 177enum nft_rule_compat_flags { 178 NFT_RULE_COMPAT_F_INV = (1 << 1), 179 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV, 180}; 181 182/** 183 * enum nft_rule_compat_attributes - nf_tables rule compat attributes 184 * 185 * @NFTA_RULE_COMPAT_PROTO: numerice value of handled protocol (NLA_U32) 186 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32) 187 */ 188enum nft_rule_compat_attributes { 189 NFTA_RULE_COMPAT_UNSPEC, 190 NFTA_RULE_COMPAT_PROTO, 191 NFTA_RULE_COMPAT_FLAGS, 192 __NFTA_RULE_COMPAT_MAX 193}; 194#define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1) 195 196/** 197 * enum nft_set_flags - nf_tables set flags 198 * 199 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink 200 * @NFT_SET_CONSTANT: set contents may not change while bound 201 * @NFT_SET_INTERVAL: set contains intervals 202 * @NFT_SET_MAP: set is used as a dictionary 203 */ 204enum nft_set_flags { 205 NFT_SET_ANONYMOUS = 0x1, 206 NFT_SET_CONSTANT = 0x2, 207 NFT_SET_INTERVAL = 0x4, 208 NFT_SET_MAP = 0x8, 209}; 210 211/** 212 * enum nft_set_attributes - nf_tables set netlink attributes 213 * 214 * @NFTA_SET_TABLE: table name (NLA_STRING) 215 * @NFTA_SET_NAME: set name (NLA_STRING) 216 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32) 217 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32) 218 * @NFTA_SET_KEY_LEN: key data length (NLA_U32) 219 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32) 220 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32) 221 */ 222enum nft_set_attributes { 223 NFTA_SET_UNSPEC, 224 NFTA_SET_TABLE, 225 NFTA_SET_NAME, 226 NFTA_SET_FLAGS, 227 NFTA_SET_KEY_TYPE, 228 NFTA_SET_KEY_LEN, 229 NFTA_SET_DATA_TYPE, 230 NFTA_SET_DATA_LEN, 231 __NFTA_SET_MAX 232}; 233#define NFTA_SET_MAX (__NFTA_SET_MAX - 1) 234 235/** 236 * enum nft_set_elem_flags - nf_tables set element flags 237 * 238 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval 239 */ 240enum nft_set_elem_flags { 241 NFT_SET_ELEM_INTERVAL_END = 0x1, 242}; 243 244/** 245 * enum nft_set_elem_attributes - nf_tables set element netlink attributes 246 * 247 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data) 248 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes) 249 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32) 250 */ 251enum nft_set_elem_attributes { 252 NFTA_SET_ELEM_UNSPEC, 253 NFTA_SET_ELEM_KEY, 254 NFTA_SET_ELEM_DATA, 255 NFTA_SET_ELEM_FLAGS, 256 __NFTA_SET_ELEM_MAX 257}; 258#define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1) 259 260/** 261 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes 262 * 263 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING) 264 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING) 265 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes) 266 */ 267enum nft_set_elem_list_attributes { 268 NFTA_SET_ELEM_LIST_UNSPEC, 269 NFTA_SET_ELEM_LIST_TABLE, 270 NFTA_SET_ELEM_LIST_SET, 271 NFTA_SET_ELEM_LIST_ELEMENTS, 272 __NFTA_SET_ELEM_LIST_MAX 273}; 274#define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1) 275 276/** 277 * enum nft_data_types - nf_tables data types 278 * 279 * @NFT_DATA_VALUE: generic data 280 * @NFT_DATA_VERDICT: netfilter verdict 281 * 282 * The type of data is usually determined by the kernel directly and is not 283 * explicitly specified by userspace. The only difference are sets, where 284 * userspace specifies the key and mapping data types. 285 * 286 * The values 0xffffff00-0xffffffff are reserved for internally used types. 287 * The remaining range can be freely used by userspace to encode types, all 288 * values are equivalent to NFT_DATA_VALUE. 289 */ 290enum nft_data_types { 291 NFT_DATA_VALUE, 292 NFT_DATA_VERDICT = 0xffffff00U, 293}; 294 295#define NFT_DATA_RESERVED_MASK 0xffffff00U 296 297/** 298 * enum nft_data_attributes - nf_tables data netlink attributes 299 * 300 * @NFTA_DATA_VALUE: generic data (NLA_BINARY) 301 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes) 302 */ 303enum nft_data_attributes { 304 NFTA_DATA_UNSPEC, 305 NFTA_DATA_VALUE, 306 NFTA_DATA_VERDICT, 307 __NFTA_DATA_MAX 308}; 309#define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1) 310 311/** 312 * enum nft_verdict_attributes - nf_tables verdict netlink attributes 313 * 314 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts) 315 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING) 316 */ 317enum nft_verdict_attributes { 318 NFTA_VERDICT_UNSPEC, 319 NFTA_VERDICT_CODE, 320 NFTA_VERDICT_CHAIN, 321 __NFTA_VERDICT_MAX 322}; 323#define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1) 324 325/** 326 * enum nft_expr_attributes - nf_tables expression netlink attributes 327 * 328 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING) 329 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED) 330 */ 331enum nft_expr_attributes { 332 NFTA_EXPR_UNSPEC, 333 NFTA_EXPR_NAME, 334 NFTA_EXPR_DATA, 335 __NFTA_EXPR_MAX 336}; 337#define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1) 338 339/** 340 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes 341 * 342 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32) 343 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes) 344 */ 345enum nft_immediate_attributes { 346 NFTA_IMMEDIATE_UNSPEC, 347 NFTA_IMMEDIATE_DREG, 348 NFTA_IMMEDIATE_DATA, 349 __NFTA_IMMEDIATE_MAX 350}; 351#define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1) 352 353/** 354 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes 355 * 356 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers) 357 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers) 358 * @NFTA_BITWISE_LEN: length of operands (NLA_U32) 359 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes) 360 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes) 361 * 362 * The bitwise expression performs the following operation: 363 * 364 * dreg = (sreg & mask) ^ xor 365 * 366 * which allow to express all bitwise operations: 367 * 368 * mask xor 369 * NOT: 1 1 370 * OR: 0 x 371 * XOR: 1 x 372 * AND: x 0 373 */ 374enum nft_bitwise_attributes { 375 NFTA_BITWISE_UNSPEC, 376 NFTA_BITWISE_SREG, 377 NFTA_BITWISE_DREG, 378 NFTA_BITWISE_LEN, 379 NFTA_BITWISE_MASK, 380 NFTA_BITWISE_XOR, 381 __NFTA_BITWISE_MAX 382}; 383#define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1) 384 385/** 386 * enum nft_byteorder_ops - nf_tables byteorder operators 387 * 388 * @NFT_BYTEORDER_NTOH: network to host operator 389 * @NFT_BYTEORDER_HTON: host to network opertaor 390 */ 391enum nft_byteorder_ops { 392 NFT_BYTEORDER_NTOH, 393 NFT_BYTEORDER_HTON, 394}; 395 396/** 397 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes 398 * 399 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers) 400 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers) 401 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops) 402 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32) 403 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4) 404 */ 405enum nft_byteorder_attributes { 406 NFTA_BYTEORDER_UNSPEC, 407 NFTA_BYTEORDER_SREG, 408 NFTA_BYTEORDER_DREG, 409 NFTA_BYTEORDER_OP, 410 NFTA_BYTEORDER_LEN, 411 NFTA_BYTEORDER_SIZE, 412 __NFTA_BYTEORDER_MAX 413}; 414#define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1) 415 416/** 417 * enum nft_cmp_ops - nf_tables relational operator 418 * 419 * @NFT_CMP_EQ: equal 420 * @NFT_CMP_NEQ: not equal 421 * @NFT_CMP_LT: less than 422 * @NFT_CMP_LTE: less than or equal to 423 * @NFT_CMP_GT: greater than 424 * @NFT_CMP_GTE: greater than or equal to 425 */ 426enum nft_cmp_ops { 427 NFT_CMP_EQ, 428 NFT_CMP_NEQ, 429 NFT_CMP_LT, 430 NFT_CMP_LTE, 431 NFT_CMP_GT, 432 NFT_CMP_GTE, 433}; 434 435/** 436 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes 437 * 438 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers) 439 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops) 440 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes) 441 */ 442enum nft_cmp_attributes { 443 NFTA_CMP_UNSPEC, 444 NFTA_CMP_SREG, 445 NFTA_CMP_OP, 446 NFTA_CMP_DATA, 447 __NFTA_CMP_MAX 448}; 449#define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1) 450 451/** 452 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes 453 * 454 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING) 455 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers) 456 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers) 457 */ 458enum nft_lookup_attributes { 459 NFTA_LOOKUP_UNSPEC, 460 NFTA_LOOKUP_SET, 461 NFTA_LOOKUP_SREG, 462 NFTA_LOOKUP_DREG, 463 __NFTA_LOOKUP_MAX 464}; 465#define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1) 466 467/** 468 * enum nft_payload_bases - nf_tables payload expression offset bases 469 * 470 * @NFT_PAYLOAD_LL_HEADER: link layer header 471 * @NFT_PAYLOAD_NETWORK_HEADER: network header 472 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header 473 */ 474enum nft_payload_bases { 475 NFT_PAYLOAD_LL_HEADER, 476 NFT_PAYLOAD_NETWORK_HEADER, 477 NFT_PAYLOAD_TRANSPORT_HEADER, 478}; 479 480/** 481 * enum nft_payload_attributes - nf_tables payload expression netlink attributes 482 * 483 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers) 484 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases) 485 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32) 486 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32) 487 */ 488enum nft_payload_attributes { 489 NFTA_PAYLOAD_UNSPEC, 490 NFTA_PAYLOAD_DREG, 491 NFTA_PAYLOAD_BASE, 492 NFTA_PAYLOAD_OFFSET, 493 NFTA_PAYLOAD_LEN, 494 __NFTA_PAYLOAD_MAX 495}; 496#define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1) 497 498/** 499 * enum nft_exthdr_attributes - nf_tables IPv6 extension header expression netlink attributes 500 * 501 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers) 502 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8) 503 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32) 504 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32) 505 */ 506enum nft_exthdr_attributes { 507 NFTA_EXTHDR_UNSPEC, 508 NFTA_EXTHDR_DREG, 509 NFTA_EXTHDR_TYPE, 510 NFTA_EXTHDR_OFFSET, 511 NFTA_EXTHDR_LEN, 512 __NFTA_EXTHDR_MAX 513}; 514#define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1) 515 516/** 517 * enum nft_meta_keys - nf_tables meta expression keys 518 * 519 * @NFT_META_LEN: packet length (skb->len) 520 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT 521 * @NFT_META_PRIORITY: packet priority (skb->priority) 522 * @NFT_META_MARK: packet mark (skb->mark) 523 * @NFT_META_IIF: packet input interface index (dev->ifindex) 524 * @NFT_META_OIF: packet output interface index (dev->ifindex) 525 * @NFT_META_IIFNAME: packet input interface name (dev->name) 526 * @NFT_META_OIFNAME: packet output interface name (dev->name) 527 * @NFT_META_IIFTYPE: packet input interface type (dev->type) 528 * @NFT_META_OIFTYPE: packet output interface type (dev->type) 529 * @NFT_META_SKUID: originating socket UID (fsuid) 530 * @NFT_META_SKGID: originating socket GID (fsgid) 531 * @NFT_META_NFTRACE: packet nftrace bit 532 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid) 533 * @NFT_META_SECMARK: packet secmark (skb->secmark) 534 * @NFT_META_NFPROTO: netfilter protocol 535 * @NFT_META_L4PROTO: layer 4 protocol number 536 */ 537enum nft_meta_keys { 538 NFT_META_LEN, 539 NFT_META_PROTOCOL, 540 NFT_META_PRIORITY, 541 NFT_META_MARK, 542 NFT_META_IIF, 543 NFT_META_OIF, 544 NFT_META_IIFNAME, 545 NFT_META_OIFNAME, 546 NFT_META_IIFTYPE, 547 NFT_META_OIFTYPE, 548 NFT_META_SKUID, 549 NFT_META_SKGID, 550 NFT_META_NFTRACE, 551 NFT_META_RTCLASSID, 552 NFT_META_SECMARK, 553 NFT_META_NFPROTO, 554 NFT_META_L4PROTO, 555}; 556 557/** 558 * enum nft_meta_attributes - nf_tables meta expression netlink attributes 559 * 560 * @NFTA_META_DREG: destination register (NLA_U32) 561 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys) 562 * @NFTA_META_SREG: source register (NLA_U32) 563 */ 564enum nft_meta_attributes { 565 NFTA_META_UNSPEC, 566 NFTA_META_DREG, 567 NFTA_META_KEY, 568 NFTA_META_SREG, 569 __NFTA_META_MAX 570}; 571#define NFTA_META_MAX (__NFTA_META_MAX - 1) 572 573/** 574 * enum nft_ct_keys - nf_tables ct expression keys 575 * 576 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info) 577 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir) 578 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status) 579 * @NFT_CT_MARK: conntrack mark value 580 * @NFT_CT_SECMARK: conntrack secmark value 581 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms 582 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack 583 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol 584 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address) 585 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address) 586 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol 587 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source 588 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination 589 */ 590enum nft_ct_keys { 591 NFT_CT_STATE, 592 NFT_CT_DIRECTION, 593 NFT_CT_STATUS, 594 NFT_CT_MARK, 595 NFT_CT_SECMARK, 596 NFT_CT_EXPIRATION, 597 NFT_CT_HELPER, 598 NFT_CT_L3PROTOCOL, 599 NFT_CT_SRC, 600 NFT_CT_DST, 601 NFT_CT_PROTOCOL, 602 NFT_CT_PROTO_SRC, 603 NFT_CT_PROTO_DST, 604}; 605 606/** 607 * enum nft_ct_attributes - nf_tables ct expression netlink attributes 608 * 609 * @NFTA_CT_DREG: destination register (NLA_U32) 610 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys) 611 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8) 612 * @NFTA_CT_SREG: source register (NLA_U32) 613 */ 614enum nft_ct_attributes { 615 NFTA_CT_UNSPEC, 616 NFTA_CT_DREG, 617 NFTA_CT_KEY, 618 NFTA_CT_DIRECTION, 619 NFTA_CT_SREG, 620 __NFTA_CT_MAX 621}; 622#define NFTA_CT_MAX (__NFTA_CT_MAX - 1) 623 624/** 625 * enum nft_limit_attributes - nf_tables limit expression netlink attributes 626 * 627 * @NFTA_LIMIT_RATE: refill rate (NLA_U64) 628 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64) 629 */ 630enum nft_limit_attributes { 631 NFTA_LIMIT_UNSPEC, 632 NFTA_LIMIT_RATE, 633 NFTA_LIMIT_UNIT, 634 __NFTA_LIMIT_MAX 635}; 636#define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1) 637 638/** 639 * enum nft_counter_attributes - nf_tables counter expression netlink attributes 640 * 641 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64) 642 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64) 643 */ 644enum nft_counter_attributes { 645 NFTA_COUNTER_UNSPEC, 646 NFTA_COUNTER_BYTES, 647 NFTA_COUNTER_PACKETS, 648 __NFTA_COUNTER_MAX 649}; 650#define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1) 651 652/** 653 * enum nft_log_attributes - nf_tables log expression netlink attributes 654 * 655 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32) 656 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING) 657 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32) 658 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32) 659 */ 660enum nft_log_attributes { 661 NFTA_LOG_UNSPEC, 662 NFTA_LOG_GROUP, 663 NFTA_LOG_PREFIX, 664 NFTA_LOG_SNAPLEN, 665 NFTA_LOG_QTHRESHOLD, 666 __NFTA_LOG_MAX 667}; 668#define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1) 669 670/** 671 * enum nft_queue_attributes - nf_tables queue expression netlink attributes 672 * 673 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16) 674 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16) 675 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16) 676 */ 677enum nft_queue_attributes { 678 NFTA_QUEUE_UNSPEC, 679 NFTA_QUEUE_NUM, 680 NFTA_QUEUE_TOTAL, 681 NFTA_QUEUE_FLAGS, 682 __NFTA_QUEUE_MAX 683}; 684#define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1) 685 686#define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */ 687#define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */ 688#define NFT_QUEUE_FLAG_MASK 0x03 689 690/** 691 * enum nft_reject_types - nf_tables reject expression reject types 692 * 693 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable 694 * @NFT_REJECT_TCP_RST: reject using TCP RST 695 */ 696enum nft_reject_types { 697 NFT_REJECT_ICMP_UNREACH, 698 NFT_REJECT_TCP_RST, 699}; 700 701/** 702 * enum nft_reject_attributes - nf_tables reject expression netlink attributes 703 * 704 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types) 705 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8) 706 */ 707enum nft_reject_attributes { 708 NFTA_REJECT_UNSPEC, 709 NFTA_REJECT_TYPE, 710 NFTA_REJECT_ICMP_CODE, 711 __NFTA_REJECT_MAX 712}; 713#define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1) 714 715/** 716 * enum nft_nat_types - nf_tables nat expression NAT types 717 * 718 * @NFT_NAT_SNAT: source NAT 719 * @NFT_NAT_DNAT: destination NAT 720 */ 721enum nft_nat_types { 722 NFT_NAT_SNAT, 723 NFT_NAT_DNAT, 724}; 725 726/** 727 * enum nft_nat_attributes - nf_tables nat expression netlink attributes 728 * 729 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types) 730 * @NFTA_NAT_FAMILY: NAT family (NLA_U32) 731 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers) 732 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers) 733 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 734 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 735 */ 736enum nft_nat_attributes { 737 NFTA_NAT_UNSPEC, 738 NFTA_NAT_TYPE, 739 NFTA_NAT_FAMILY, 740 NFTA_NAT_REG_ADDR_MIN, 741 NFTA_NAT_REG_ADDR_MAX, 742 NFTA_NAT_REG_PROTO_MIN, 743 NFTA_NAT_REG_PROTO_MAX, 744 __NFTA_NAT_MAX 745}; 746#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1) 747 748#endif /* _LINUX_NF_TABLES_H */ 749