1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _LINUX_NF_TABLES_H 3 #define _LINUX_NF_TABLES_H 4 5 #define NFT_NAME_MAXLEN 256 6 #define NFT_TABLE_MAXNAMELEN NFT_NAME_MAXLEN 7 #define NFT_CHAIN_MAXNAMELEN NFT_NAME_MAXLEN 8 #define NFT_SET_MAXNAMELEN NFT_NAME_MAXLEN 9 #define NFT_OBJ_MAXNAMELEN NFT_NAME_MAXLEN 10 #define NFT_USERDATA_MAXLEN 256 11 12 /** 13 * enum nft_registers - nf_tables registers 14 * 15 * nf_tables used to have five registers: a verdict register and four data 16 * registers of size 16. The data registers have been changed to 16 registers 17 * of size 4. For compatibility reasons, the NFT_REG_[1-4] registers still 18 * map to areas of size 16, the 4 byte registers are addressed using 19 * NFT_REG32_00 - NFT_REG32_15. 20 */ 21 enum nft_registers { 22 NFT_REG_VERDICT, 23 NFT_REG_1, 24 NFT_REG_2, 25 NFT_REG_3, 26 NFT_REG_4, 27 __NFT_REG_MAX, 28 29 NFT_REG32_00 = 8, 30 NFT_REG32_01, 31 NFT_REG32_02, 32 NFT_REG32_03, 33 NFT_REG32_04, 34 NFT_REG32_05, 35 NFT_REG32_06, 36 NFT_REG32_07, 37 NFT_REG32_08, 38 NFT_REG32_09, 39 NFT_REG32_10, 40 NFT_REG32_11, 41 NFT_REG32_12, 42 NFT_REG32_13, 43 NFT_REG32_14, 44 NFT_REG32_15, 45 }; 46 #define NFT_REG_MAX (__NFT_REG_MAX - 1) 47 48 #define NFT_REG_SIZE 16 49 #define NFT_REG32_SIZE 4 50 51 /** 52 * enum nft_verdicts - nf_tables internal verdicts 53 * 54 * @NFT_CONTINUE: continue evaluation of the current rule 55 * @NFT_BREAK: terminate evaluation of the current rule 56 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain 57 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack 58 * @NFT_RETURN: return to the topmost chain on the jump stack 59 * 60 * The nf_tables verdicts share their numeric space with the netfilter verdicts. 61 */ 62 enum nft_verdicts { 63 NFT_CONTINUE = -1, 64 NFT_BREAK = -2, 65 NFT_JUMP = -3, 66 NFT_GOTO = -4, 67 NFT_RETURN = -5, 68 }; 69 70 /** 71 * enum nf_tables_msg_types - nf_tables netlink message types 72 * 73 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes) 74 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes) 75 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes) 76 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes) 77 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes) 78 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes) 79 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes) 80 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes) 81 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes) 82 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes) 83 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes) 84 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes) 85 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes) 86 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes) 87 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes) 88 * @NFT_MSG_NEWGEN: announce a new generation, only for events (enum nft_gen_attributes) 89 * @NFT_MSG_GETGEN: get the rule-set generation (enum nft_gen_attributes) 90 * @NFT_MSG_TRACE: trace event (enum nft_trace_attributes) 91 * @NFT_MSG_NEWOBJ: create a stateful object (enum nft_obj_attributes) 92 * @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes) 93 * @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes) 94 * @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum nft_obj_attributes) 95 * @NFT_MSG_NEWFLOWTABLE: add new flow table (enum nft_flowtable_attributes) 96 * @NFT_MSG_GETFLOWTABLE: get flow table (enum nft_flowtable_attributes) 97 * @NFT_MSG_DELFLOWTABLE: delete flow table (enum nft_flowtable_attributes) 98 */ 99 enum nf_tables_msg_types { 100 NFT_MSG_NEWTABLE, 101 NFT_MSG_GETTABLE, 102 NFT_MSG_DELTABLE, 103 NFT_MSG_NEWCHAIN, 104 NFT_MSG_GETCHAIN, 105 NFT_MSG_DELCHAIN, 106 NFT_MSG_NEWRULE, 107 NFT_MSG_GETRULE, 108 NFT_MSG_DELRULE, 109 NFT_MSG_NEWSET, 110 NFT_MSG_GETSET, 111 NFT_MSG_DELSET, 112 NFT_MSG_NEWSETELEM, 113 NFT_MSG_GETSETELEM, 114 NFT_MSG_DELSETELEM, 115 NFT_MSG_NEWGEN, 116 NFT_MSG_GETGEN, 117 NFT_MSG_TRACE, 118 NFT_MSG_NEWOBJ, 119 NFT_MSG_GETOBJ, 120 NFT_MSG_DELOBJ, 121 NFT_MSG_GETOBJ_RESET, 122 NFT_MSG_NEWFLOWTABLE, 123 NFT_MSG_GETFLOWTABLE, 124 NFT_MSG_DELFLOWTABLE, 125 NFT_MSG_MAX, 126 }; 127 128 /** 129 * enum nft_list_attributes - nf_tables generic list netlink attributes 130 * 131 * @NFTA_LIST_ELEM: list element (NLA_NESTED) 132 */ 133 enum nft_list_attributes { 134 NFTA_LIST_UNPEC, 135 NFTA_LIST_ELEM, 136 __NFTA_LIST_MAX 137 }; 138 #define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1) 139 140 /** 141 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes 142 * 143 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32) 144 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32) 145 * @NFTA_HOOK_DEV: netdevice name (NLA_STRING) 146 */ 147 enum nft_hook_attributes { 148 NFTA_HOOK_UNSPEC, 149 NFTA_HOOK_HOOKNUM, 150 NFTA_HOOK_PRIORITY, 151 NFTA_HOOK_DEV, 152 __NFTA_HOOK_MAX 153 }; 154 #define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1) 155 156 /** 157 * enum nft_table_flags - nf_tables table flags 158 * 159 * @NFT_TABLE_F_DORMANT: this table is not active 160 */ 161 enum nft_table_flags { 162 NFT_TABLE_F_DORMANT = 0x1, 163 }; 164 165 /** 166 * enum nft_table_attributes - nf_tables table netlink attributes 167 * 168 * @NFTA_TABLE_NAME: name of the table (NLA_STRING) 169 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32) 170 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32) 171 */ 172 enum nft_table_attributes { 173 NFTA_TABLE_UNSPEC, 174 NFTA_TABLE_NAME, 175 NFTA_TABLE_FLAGS, 176 NFTA_TABLE_USE, 177 NFTA_TABLE_HANDLE, 178 NFTA_TABLE_PAD, 179 __NFTA_TABLE_MAX 180 }; 181 #define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1) 182 183 /** 184 * enum nft_chain_attributes - nf_tables chain netlink attributes 185 * 186 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING) 187 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64) 188 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING) 189 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes) 190 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32) 191 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32) 192 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING) 193 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes) 194 */ 195 enum nft_chain_attributes { 196 NFTA_CHAIN_UNSPEC, 197 NFTA_CHAIN_TABLE, 198 NFTA_CHAIN_HANDLE, 199 NFTA_CHAIN_NAME, 200 NFTA_CHAIN_HOOK, 201 NFTA_CHAIN_POLICY, 202 NFTA_CHAIN_USE, 203 NFTA_CHAIN_TYPE, 204 NFTA_CHAIN_COUNTERS, 205 NFTA_CHAIN_PAD, 206 __NFTA_CHAIN_MAX 207 }; 208 #define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1) 209 210 /** 211 * enum nft_rule_attributes - nf_tables rule netlink attributes 212 * 213 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING) 214 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING) 215 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64) 216 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes) 217 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes) 218 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64) 219 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN) 220 * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32) 221 */ 222 enum nft_rule_attributes { 223 NFTA_RULE_UNSPEC, 224 NFTA_RULE_TABLE, 225 NFTA_RULE_CHAIN, 226 NFTA_RULE_HANDLE, 227 NFTA_RULE_EXPRESSIONS, 228 NFTA_RULE_COMPAT, 229 NFTA_RULE_POSITION, 230 NFTA_RULE_USERDATA, 231 NFTA_RULE_PAD, 232 NFTA_RULE_ID, 233 __NFTA_RULE_MAX 234 }; 235 #define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1) 236 237 /** 238 * enum nft_rule_compat_flags - nf_tables rule compat flags 239 * 240 * @NFT_RULE_COMPAT_F_INV: invert the check result 241 */ 242 enum nft_rule_compat_flags { 243 NFT_RULE_COMPAT_F_INV = (1 << 1), 244 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV, 245 }; 246 247 /** 248 * enum nft_rule_compat_attributes - nf_tables rule compat attributes 249 * 250 * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32) 251 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32) 252 */ 253 enum nft_rule_compat_attributes { 254 NFTA_RULE_COMPAT_UNSPEC, 255 NFTA_RULE_COMPAT_PROTO, 256 NFTA_RULE_COMPAT_FLAGS, 257 __NFTA_RULE_COMPAT_MAX 258 }; 259 #define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1) 260 261 /** 262 * enum nft_set_flags - nf_tables set flags 263 * 264 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink 265 * @NFT_SET_CONSTANT: set contents may not change while bound 266 * @NFT_SET_INTERVAL: set contains intervals 267 * @NFT_SET_MAP: set is used as a dictionary 268 * @NFT_SET_TIMEOUT: set uses timeouts 269 * @NFT_SET_EVAL: set contains expressions for evaluation 270 * @NFT_SET_OBJECT: set contains stateful objects 271 */ 272 enum nft_set_flags { 273 NFT_SET_ANONYMOUS = 0x1, 274 NFT_SET_CONSTANT = 0x2, 275 NFT_SET_INTERVAL = 0x4, 276 NFT_SET_MAP = 0x8, 277 NFT_SET_TIMEOUT = 0x10, 278 NFT_SET_EVAL = 0x20, 279 NFT_SET_OBJECT = 0x40, 280 }; 281 282 /** 283 * enum nft_set_policies - set selection policy 284 * 285 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use 286 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance 287 */ 288 enum nft_set_policies { 289 NFT_SET_POL_PERFORMANCE, 290 NFT_SET_POL_MEMORY, 291 }; 292 293 /** 294 * enum nft_set_desc_attributes - set element description 295 * 296 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32) 297 */ 298 enum nft_set_desc_attributes { 299 NFTA_SET_DESC_UNSPEC, 300 NFTA_SET_DESC_SIZE, 301 __NFTA_SET_DESC_MAX 302 }; 303 #define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1) 304 305 /** 306 * enum nft_set_attributes - nf_tables set netlink attributes 307 * 308 * @NFTA_SET_TABLE: table name (NLA_STRING) 309 * @NFTA_SET_NAME: set name (NLA_STRING) 310 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32) 311 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32) 312 * @NFTA_SET_KEY_LEN: key data length (NLA_U32) 313 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32) 314 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32) 315 * @NFTA_SET_POLICY: selection policy (NLA_U32) 316 * @NFTA_SET_DESC: set description (NLA_NESTED) 317 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 318 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64) 319 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32) 320 * @NFTA_SET_USERDATA: user data (NLA_BINARY) 321 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*) 322 * @NFTA_SET_HANDLE: set handle (NLA_U64) 323 */ 324 enum nft_set_attributes { 325 NFTA_SET_UNSPEC, 326 NFTA_SET_TABLE, 327 NFTA_SET_NAME, 328 NFTA_SET_FLAGS, 329 NFTA_SET_KEY_TYPE, 330 NFTA_SET_KEY_LEN, 331 NFTA_SET_DATA_TYPE, 332 NFTA_SET_DATA_LEN, 333 NFTA_SET_POLICY, 334 NFTA_SET_DESC, 335 NFTA_SET_ID, 336 NFTA_SET_TIMEOUT, 337 NFTA_SET_GC_INTERVAL, 338 NFTA_SET_USERDATA, 339 NFTA_SET_PAD, 340 NFTA_SET_OBJ_TYPE, 341 NFTA_SET_HANDLE, 342 __NFTA_SET_MAX 343 }; 344 #define NFTA_SET_MAX (__NFTA_SET_MAX - 1) 345 346 /** 347 * enum nft_set_elem_flags - nf_tables set element flags 348 * 349 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval 350 */ 351 enum nft_set_elem_flags { 352 NFT_SET_ELEM_INTERVAL_END = 0x1, 353 }; 354 355 /** 356 * enum nft_set_elem_attributes - nf_tables set element netlink attributes 357 * 358 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data) 359 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes) 360 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32) 361 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64) 362 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64) 363 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY) 364 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes) 365 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING) 366 */ 367 enum nft_set_elem_attributes { 368 NFTA_SET_ELEM_UNSPEC, 369 NFTA_SET_ELEM_KEY, 370 NFTA_SET_ELEM_DATA, 371 NFTA_SET_ELEM_FLAGS, 372 NFTA_SET_ELEM_TIMEOUT, 373 NFTA_SET_ELEM_EXPIRATION, 374 NFTA_SET_ELEM_USERDATA, 375 NFTA_SET_ELEM_EXPR, 376 NFTA_SET_ELEM_PAD, 377 NFTA_SET_ELEM_OBJREF, 378 __NFTA_SET_ELEM_MAX 379 }; 380 #define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1) 381 382 /** 383 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes 384 * 385 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING) 386 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING) 387 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes) 388 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 389 */ 390 enum nft_set_elem_list_attributes { 391 NFTA_SET_ELEM_LIST_UNSPEC, 392 NFTA_SET_ELEM_LIST_TABLE, 393 NFTA_SET_ELEM_LIST_SET, 394 NFTA_SET_ELEM_LIST_ELEMENTS, 395 NFTA_SET_ELEM_LIST_SET_ID, 396 __NFTA_SET_ELEM_LIST_MAX 397 }; 398 #define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1) 399 400 /** 401 * enum nft_data_types - nf_tables data types 402 * 403 * @NFT_DATA_VALUE: generic data 404 * @NFT_DATA_VERDICT: netfilter verdict 405 * 406 * The type of data is usually determined by the kernel directly and is not 407 * explicitly specified by userspace. The only difference are sets, where 408 * userspace specifies the key and mapping data types. 409 * 410 * The values 0xffffff00-0xffffffff are reserved for internally used types. 411 * The remaining range can be freely used by userspace to encode types, all 412 * values are equivalent to NFT_DATA_VALUE. 413 */ 414 enum nft_data_types { 415 NFT_DATA_VALUE, 416 NFT_DATA_VERDICT = 0xffffff00U, 417 }; 418 419 #define NFT_DATA_RESERVED_MASK 0xffffff00U 420 421 /** 422 * enum nft_data_attributes - nf_tables data netlink attributes 423 * 424 * @NFTA_DATA_VALUE: generic data (NLA_BINARY) 425 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes) 426 */ 427 enum nft_data_attributes { 428 NFTA_DATA_UNSPEC, 429 NFTA_DATA_VALUE, 430 NFTA_DATA_VERDICT, 431 __NFTA_DATA_MAX 432 }; 433 #define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1) 434 435 /* Maximum length of a value */ 436 #define NFT_DATA_VALUE_MAXLEN 64 437 438 /** 439 * enum nft_verdict_attributes - nf_tables verdict netlink attributes 440 * 441 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts) 442 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING) 443 */ 444 enum nft_verdict_attributes { 445 NFTA_VERDICT_UNSPEC, 446 NFTA_VERDICT_CODE, 447 NFTA_VERDICT_CHAIN, 448 __NFTA_VERDICT_MAX 449 }; 450 #define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1) 451 452 /** 453 * enum nft_expr_attributes - nf_tables expression netlink attributes 454 * 455 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING) 456 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED) 457 */ 458 enum nft_expr_attributes { 459 NFTA_EXPR_UNSPEC, 460 NFTA_EXPR_NAME, 461 NFTA_EXPR_DATA, 462 __NFTA_EXPR_MAX 463 }; 464 #define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1) 465 466 /** 467 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes 468 * 469 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32) 470 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes) 471 */ 472 enum nft_immediate_attributes { 473 NFTA_IMMEDIATE_UNSPEC, 474 NFTA_IMMEDIATE_DREG, 475 NFTA_IMMEDIATE_DATA, 476 __NFTA_IMMEDIATE_MAX 477 }; 478 #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1) 479 480 /** 481 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes 482 * 483 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers) 484 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers) 485 * @NFTA_BITWISE_LEN: length of operands (NLA_U32) 486 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes) 487 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes) 488 * 489 * The bitwise expression performs the following operation: 490 * 491 * dreg = (sreg & mask) ^ xor 492 * 493 * which allow to express all bitwise operations: 494 * 495 * mask xor 496 * NOT: 1 1 497 * OR: 0 x 498 * XOR: 1 x 499 * AND: x 0 500 */ 501 enum nft_bitwise_attributes { 502 NFTA_BITWISE_UNSPEC, 503 NFTA_BITWISE_SREG, 504 NFTA_BITWISE_DREG, 505 NFTA_BITWISE_LEN, 506 NFTA_BITWISE_MASK, 507 NFTA_BITWISE_XOR, 508 __NFTA_BITWISE_MAX 509 }; 510 #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1) 511 512 /** 513 * enum nft_byteorder_ops - nf_tables byteorder operators 514 * 515 * @NFT_BYTEORDER_NTOH: network to host operator 516 * @NFT_BYTEORDER_HTON: host to network operator 517 */ 518 enum nft_byteorder_ops { 519 NFT_BYTEORDER_NTOH, 520 NFT_BYTEORDER_HTON, 521 }; 522 523 /** 524 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes 525 * 526 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers) 527 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers) 528 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops) 529 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32) 530 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4) 531 */ 532 enum nft_byteorder_attributes { 533 NFTA_BYTEORDER_UNSPEC, 534 NFTA_BYTEORDER_SREG, 535 NFTA_BYTEORDER_DREG, 536 NFTA_BYTEORDER_OP, 537 NFTA_BYTEORDER_LEN, 538 NFTA_BYTEORDER_SIZE, 539 __NFTA_BYTEORDER_MAX 540 }; 541 #define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1) 542 543 /** 544 * enum nft_cmp_ops - nf_tables relational operator 545 * 546 * @NFT_CMP_EQ: equal 547 * @NFT_CMP_NEQ: not equal 548 * @NFT_CMP_LT: less than 549 * @NFT_CMP_LTE: less than or equal to 550 * @NFT_CMP_GT: greater than 551 * @NFT_CMP_GTE: greater than or equal to 552 */ 553 enum nft_cmp_ops { 554 NFT_CMP_EQ, 555 NFT_CMP_NEQ, 556 NFT_CMP_LT, 557 NFT_CMP_LTE, 558 NFT_CMP_GT, 559 NFT_CMP_GTE, 560 }; 561 562 /** 563 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes 564 * 565 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers) 566 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops) 567 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes) 568 */ 569 enum nft_cmp_attributes { 570 NFTA_CMP_UNSPEC, 571 NFTA_CMP_SREG, 572 NFTA_CMP_OP, 573 NFTA_CMP_DATA, 574 __NFTA_CMP_MAX 575 }; 576 #define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1) 577 578 /** 579 * enum nft_range_ops - nf_tables range operator 580 * 581 * @NFT_RANGE_EQ: equal 582 * @NFT_RANGE_NEQ: not equal 583 */ 584 enum nft_range_ops { 585 NFT_RANGE_EQ, 586 NFT_RANGE_NEQ, 587 }; 588 589 /** 590 * enum nft_range_attributes - nf_tables range expression netlink attributes 591 * 592 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers) 593 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops) 594 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes) 595 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes) 596 */ 597 enum nft_range_attributes { 598 NFTA_RANGE_UNSPEC, 599 NFTA_RANGE_SREG, 600 NFTA_RANGE_OP, 601 NFTA_RANGE_FROM_DATA, 602 NFTA_RANGE_TO_DATA, 603 __NFTA_RANGE_MAX 604 }; 605 #define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1) 606 607 enum nft_lookup_flags { 608 NFT_LOOKUP_F_INV = (1 << 0), 609 }; 610 611 /** 612 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes 613 * 614 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING) 615 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers) 616 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers) 617 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 618 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags) 619 */ 620 enum nft_lookup_attributes { 621 NFTA_LOOKUP_UNSPEC, 622 NFTA_LOOKUP_SET, 623 NFTA_LOOKUP_SREG, 624 NFTA_LOOKUP_DREG, 625 NFTA_LOOKUP_SET_ID, 626 NFTA_LOOKUP_FLAGS, 627 __NFTA_LOOKUP_MAX 628 }; 629 #define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1) 630 631 enum nft_dynset_ops { 632 NFT_DYNSET_OP_ADD, 633 NFT_DYNSET_OP_UPDATE, 634 }; 635 636 enum nft_dynset_flags { 637 NFT_DYNSET_F_INV = (1 << 0), 638 }; 639 640 /** 641 * enum nft_dynset_attributes - dynset expression attributes 642 * 643 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING) 644 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32) 645 * @NFTA_DYNSET_OP: operation (NLA_U32) 646 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32) 647 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32) 648 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64) 649 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes) 650 * @NFTA_DYNSET_FLAGS: flags (NLA_U32) 651 */ 652 enum nft_dynset_attributes { 653 NFTA_DYNSET_UNSPEC, 654 NFTA_DYNSET_SET_NAME, 655 NFTA_DYNSET_SET_ID, 656 NFTA_DYNSET_OP, 657 NFTA_DYNSET_SREG_KEY, 658 NFTA_DYNSET_SREG_DATA, 659 NFTA_DYNSET_TIMEOUT, 660 NFTA_DYNSET_EXPR, 661 NFTA_DYNSET_PAD, 662 NFTA_DYNSET_FLAGS, 663 __NFTA_DYNSET_MAX, 664 }; 665 #define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1) 666 667 /** 668 * enum nft_payload_bases - nf_tables payload expression offset bases 669 * 670 * @NFT_PAYLOAD_LL_HEADER: link layer header 671 * @NFT_PAYLOAD_NETWORK_HEADER: network header 672 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header 673 */ 674 enum nft_payload_bases { 675 NFT_PAYLOAD_LL_HEADER, 676 NFT_PAYLOAD_NETWORK_HEADER, 677 NFT_PAYLOAD_TRANSPORT_HEADER, 678 }; 679 680 /** 681 * enum nft_payload_csum_types - nf_tables payload expression checksum types 682 * 683 * @NFT_PAYLOAD_CSUM_NONE: no checksumming 684 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791) 685 */ 686 enum nft_payload_csum_types { 687 NFT_PAYLOAD_CSUM_NONE, 688 NFT_PAYLOAD_CSUM_INET, 689 }; 690 691 enum nft_payload_csum_flags { 692 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0), 693 }; 694 695 /** 696 * enum nft_payload_attributes - nf_tables payload expression netlink attributes 697 * 698 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers) 699 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases) 700 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32) 701 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32) 702 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers) 703 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32) 704 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32) 705 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32) 706 */ 707 enum nft_payload_attributes { 708 NFTA_PAYLOAD_UNSPEC, 709 NFTA_PAYLOAD_DREG, 710 NFTA_PAYLOAD_BASE, 711 NFTA_PAYLOAD_OFFSET, 712 NFTA_PAYLOAD_LEN, 713 NFTA_PAYLOAD_SREG, 714 NFTA_PAYLOAD_CSUM_TYPE, 715 NFTA_PAYLOAD_CSUM_OFFSET, 716 NFTA_PAYLOAD_CSUM_FLAGS, 717 __NFTA_PAYLOAD_MAX 718 }; 719 #define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1) 720 721 enum nft_exthdr_flags { 722 NFT_EXTHDR_F_PRESENT = (1 << 0), 723 }; 724 725 /** 726 * enum nft_exthdr_op - nf_tables match options 727 * 728 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers 729 * @NFT_EXTHDR_OP_TCP: match against tcp options 730 */ 731 enum nft_exthdr_op { 732 NFT_EXTHDR_OP_IPV6, 733 NFT_EXTHDR_OP_TCPOPT, 734 __NFT_EXTHDR_OP_MAX 735 }; 736 #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1) 737 738 /** 739 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes 740 * 741 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers) 742 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8) 743 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32) 744 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32) 745 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32) 746 * @NFTA_EXTHDR_OP: option match type (NLA_U32) 747 * @NFTA_EXTHDR_SREG: option match type (NLA_U32) 748 */ 749 enum nft_exthdr_attributes { 750 NFTA_EXTHDR_UNSPEC, 751 NFTA_EXTHDR_DREG, 752 NFTA_EXTHDR_TYPE, 753 NFTA_EXTHDR_OFFSET, 754 NFTA_EXTHDR_LEN, 755 NFTA_EXTHDR_FLAGS, 756 NFTA_EXTHDR_OP, 757 NFTA_EXTHDR_SREG, 758 __NFTA_EXTHDR_MAX 759 }; 760 #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1) 761 762 /** 763 * enum nft_meta_keys - nf_tables meta expression keys 764 * 765 * @NFT_META_LEN: packet length (skb->len) 766 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT 767 * @NFT_META_PRIORITY: packet priority (skb->priority) 768 * @NFT_META_MARK: packet mark (skb->mark) 769 * @NFT_META_IIF: packet input interface index (dev->ifindex) 770 * @NFT_META_OIF: packet output interface index (dev->ifindex) 771 * @NFT_META_IIFNAME: packet input interface name (dev->name) 772 * @NFT_META_OIFNAME: packet output interface name (dev->name) 773 * @NFT_META_IIFTYPE: packet input interface type (dev->type) 774 * @NFT_META_OIFTYPE: packet output interface type (dev->type) 775 * @NFT_META_SKUID: originating socket UID (fsuid) 776 * @NFT_META_SKGID: originating socket GID (fsgid) 777 * @NFT_META_NFTRACE: packet nftrace bit 778 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid) 779 * @NFT_META_SECMARK: packet secmark (skb->secmark) 780 * @NFT_META_NFPROTO: netfilter protocol 781 * @NFT_META_L4PROTO: layer 4 protocol number 782 * @NFT_META_BRI_IIFNAME: packet input bridge interface name 783 * @NFT_META_BRI_OIFNAME: packet output bridge interface name 784 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback 785 * @NFT_META_CPU: cpu id through smp_processor_id() 786 * @NFT_META_IIFGROUP: packet input interface group 787 * @NFT_META_OIFGROUP: packet output interface group 788 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid) 789 * @NFT_META_PRANDOM: a 32bit pseudo-random number 790 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp) 791 */ 792 enum nft_meta_keys { 793 NFT_META_LEN, 794 NFT_META_PROTOCOL, 795 NFT_META_PRIORITY, 796 NFT_META_MARK, 797 NFT_META_IIF, 798 NFT_META_OIF, 799 NFT_META_IIFNAME, 800 NFT_META_OIFNAME, 801 NFT_META_IIFTYPE, 802 NFT_META_OIFTYPE, 803 NFT_META_SKUID, 804 NFT_META_SKGID, 805 NFT_META_NFTRACE, 806 NFT_META_RTCLASSID, 807 NFT_META_SECMARK, 808 NFT_META_NFPROTO, 809 NFT_META_L4PROTO, 810 NFT_META_BRI_IIFNAME, 811 NFT_META_BRI_OIFNAME, 812 NFT_META_PKTTYPE, 813 NFT_META_CPU, 814 NFT_META_IIFGROUP, 815 NFT_META_OIFGROUP, 816 NFT_META_CGROUP, 817 NFT_META_PRANDOM, 818 NFT_META_SECPATH, 819 }; 820 821 /** 822 * enum nft_rt_keys - nf_tables routing expression keys 823 * 824 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid) 825 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4 826 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6 827 * @NFT_RT_TCPMSS: fetch current path tcp mss 828 */ 829 enum nft_rt_keys { 830 NFT_RT_CLASSID, 831 NFT_RT_NEXTHOP4, 832 NFT_RT_NEXTHOP6, 833 NFT_RT_TCPMSS, 834 }; 835 836 /** 837 * enum nft_hash_types - nf_tables hash expression types 838 * 839 * @NFT_HASH_JENKINS: Jenkins Hash 840 * @NFT_HASH_SYM: Symmetric Hash 841 */ 842 enum nft_hash_types { 843 NFT_HASH_JENKINS, 844 NFT_HASH_SYM, 845 }; 846 847 /** 848 * enum nft_hash_attributes - nf_tables hash expression netlink attributes 849 * 850 * @NFTA_HASH_SREG: source register (NLA_U32) 851 * @NFTA_HASH_DREG: destination register (NLA_U32) 852 * @NFTA_HASH_LEN: source data length (NLA_U32) 853 * @NFTA_HASH_MODULUS: modulus value (NLA_U32) 854 * @NFTA_HASH_SEED: seed value (NLA_U32) 855 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32) 856 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types) 857 */ 858 enum nft_hash_attributes { 859 NFTA_HASH_UNSPEC, 860 NFTA_HASH_SREG, 861 NFTA_HASH_DREG, 862 NFTA_HASH_LEN, 863 NFTA_HASH_MODULUS, 864 NFTA_HASH_SEED, 865 NFTA_HASH_OFFSET, 866 NFTA_HASH_TYPE, 867 __NFTA_HASH_MAX, 868 }; 869 #define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1) 870 871 /** 872 * enum nft_meta_attributes - nf_tables meta expression netlink attributes 873 * 874 * @NFTA_META_DREG: destination register (NLA_U32) 875 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys) 876 * @NFTA_META_SREG: source register (NLA_U32) 877 */ 878 enum nft_meta_attributes { 879 NFTA_META_UNSPEC, 880 NFTA_META_DREG, 881 NFTA_META_KEY, 882 NFTA_META_SREG, 883 __NFTA_META_MAX 884 }; 885 #define NFTA_META_MAX (__NFTA_META_MAX - 1) 886 887 /** 888 * enum nft_rt_attributes - nf_tables routing expression netlink attributes 889 * 890 * @NFTA_RT_DREG: destination register (NLA_U32) 891 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys) 892 */ 893 enum nft_rt_attributes { 894 NFTA_RT_UNSPEC, 895 NFTA_RT_DREG, 896 NFTA_RT_KEY, 897 __NFTA_RT_MAX 898 }; 899 #define NFTA_RT_MAX (__NFTA_RT_MAX - 1) 900 901 /** 902 * enum nft_ct_keys - nf_tables ct expression keys 903 * 904 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info) 905 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir) 906 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status) 907 * @NFT_CT_MARK: conntrack mark value 908 * @NFT_CT_SECMARK: conntrack secmark value 909 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms 910 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack 911 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol 912 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address) 913 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address) 914 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol 915 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source 916 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination 917 * @NFT_CT_LABELS: conntrack labels 918 * @NFT_CT_PKTS: conntrack packets 919 * @NFT_CT_BYTES: conntrack bytes 920 * @NFT_CT_AVGPKT: conntrack average bytes per packet 921 * @NFT_CT_ZONE: conntrack zone 922 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack 923 */ 924 enum nft_ct_keys { 925 NFT_CT_STATE, 926 NFT_CT_DIRECTION, 927 NFT_CT_STATUS, 928 NFT_CT_MARK, 929 NFT_CT_SECMARK, 930 NFT_CT_EXPIRATION, 931 NFT_CT_HELPER, 932 NFT_CT_L3PROTOCOL, 933 NFT_CT_SRC, 934 NFT_CT_DST, 935 NFT_CT_PROTOCOL, 936 NFT_CT_PROTO_SRC, 937 NFT_CT_PROTO_DST, 938 NFT_CT_LABELS, 939 NFT_CT_PKTS, 940 NFT_CT_BYTES, 941 NFT_CT_AVGPKT, 942 NFT_CT_ZONE, 943 NFT_CT_EVENTMASK, 944 }; 945 946 /** 947 * enum nft_ct_attributes - nf_tables ct expression netlink attributes 948 * 949 * @NFTA_CT_DREG: destination register (NLA_U32) 950 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys) 951 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8) 952 * @NFTA_CT_SREG: source register (NLA_U32) 953 */ 954 enum nft_ct_attributes { 955 NFTA_CT_UNSPEC, 956 NFTA_CT_DREG, 957 NFTA_CT_KEY, 958 NFTA_CT_DIRECTION, 959 NFTA_CT_SREG, 960 __NFTA_CT_MAX 961 }; 962 #define NFTA_CT_MAX (__NFTA_CT_MAX - 1) 963 964 /** 965 * enum nft_flow_attributes - ct offload expression attributes 966 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING) 967 */ 968 enum nft_offload_attributes { 969 NFTA_FLOW_UNSPEC, 970 NFTA_FLOW_TABLE_NAME, 971 __NFTA_FLOW_MAX, 972 }; 973 #define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1) 974 975 enum nft_limit_type { 976 NFT_LIMIT_PKTS, 977 NFT_LIMIT_PKT_BYTES 978 }; 979 980 enum nft_limit_flags { 981 NFT_LIMIT_F_INV = (1 << 0), 982 }; 983 984 /** 985 * enum nft_limit_attributes - nf_tables limit expression netlink attributes 986 * 987 * @NFTA_LIMIT_RATE: refill rate (NLA_U64) 988 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64) 989 * @NFTA_LIMIT_BURST: burst (NLA_U32) 990 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type) 991 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags) 992 */ 993 enum nft_limit_attributes { 994 NFTA_LIMIT_UNSPEC, 995 NFTA_LIMIT_RATE, 996 NFTA_LIMIT_UNIT, 997 NFTA_LIMIT_BURST, 998 NFTA_LIMIT_TYPE, 999 NFTA_LIMIT_FLAGS, 1000 NFTA_LIMIT_PAD, 1001 __NFTA_LIMIT_MAX 1002 }; 1003 #define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1) 1004 1005 /** 1006 * enum nft_counter_attributes - nf_tables counter expression netlink attributes 1007 * 1008 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64) 1009 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64) 1010 */ 1011 enum nft_counter_attributes { 1012 NFTA_COUNTER_UNSPEC, 1013 NFTA_COUNTER_BYTES, 1014 NFTA_COUNTER_PACKETS, 1015 NFTA_COUNTER_PAD, 1016 __NFTA_COUNTER_MAX 1017 }; 1018 #define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1) 1019 1020 /** 1021 * enum nft_log_attributes - nf_tables log expression netlink attributes 1022 * 1023 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32) 1024 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING) 1025 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32) 1026 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32) 1027 * @NFTA_LOG_LEVEL: log level (NLA_U32) 1028 * @NFTA_LOG_FLAGS: logging flags (NLA_U32) 1029 */ 1030 enum nft_log_attributes { 1031 NFTA_LOG_UNSPEC, 1032 NFTA_LOG_GROUP, 1033 NFTA_LOG_PREFIX, 1034 NFTA_LOG_SNAPLEN, 1035 NFTA_LOG_QTHRESHOLD, 1036 NFTA_LOG_LEVEL, 1037 NFTA_LOG_FLAGS, 1038 __NFTA_LOG_MAX 1039 }; 1040 #define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1) 1041 1042 /** 1043 * enum nft_queue_attributes - nf_tables queue expression netlink attributes 1044 * 1045 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16) 1046 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16) 1047 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16) 1048 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers) 1049 */ 1050 enum nft_queue_attributes { 1051 NFTA_QUEUE_UNSPEC, 1052 NFTA_QUEUE_NUM, 1053 NFTA_QUEUE_TOTAL, 1054 NFTA_QUEUE_FLAGS, 1055 NFTA_QUEUE_SREG_QNUM, 1056 __NFTA_QUEUE_MAX 1057 }; 1058 #define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1) 1059 1060 #define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */ 1061 #define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */ 1062 #define NFT_QUEUE_FLAG_MASK 0x03 1063 1064 enum nft_quota_flags { 1065 NFT_QUOTA_F_INV = (1 << 0), 1066 NFT_QUOTA_F_DEPLETED = (1 << 1), 1067 }; 1068 1069 /** 1070 * enum nft_quota_attributes - nf_tables quota expression netlink attributes 1071 * 1072 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16) 1073 * @NFTA_QUOTA_FLAGS: flags (NLA_U32) 1074 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64) 1075 */ 1076 enum nft_quota_attributes { 1077 NFTA_QUOTA_UNSPEC, 1078 NFTA_QUOTA_BYTES, 1079 NFTA_QUOTA_FLAGS, 1080 NFTA_QUOTA_PAD, 1081 NFTA_QUOTA_CONSUMED, 1082 __NFTA_QUOTA_MAX 1083 }; 1084 #define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1) 1085 1086 /** 1087 * enum nft_reject_types - nf_tables reject expression reject types 1088 * 1089 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable 1090 * @NFT_REJECT_TCP_RST: reject using TCP RST 1091 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet 1092 */ 1093 enum nft_reject_types { 1094 NFT_REJECT_ICMP_UNREACH, 1095 NFT_REJECT_TCP_RST, 1096 NFT_REJECT_ICMPX_UNREACH, 1097 }; 1098 1099 /** 1100 * enum nft_reject_code - Generic reject codes for IPv4/IPv6 1101 * 1102 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable 1103 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable 1104 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable 1105 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited 1106 * 1107 * These codes are mapped to real ICMP and ICMPv6 codes. 1108 */ 1109 enum nft_reject_inet_code { 1110 NFT_REJECT_ICMPX_NO_ROUTE = 0, 1111 NFT_REJECT_ICMPX_PORT_UNREACH, 1112 NFT_REJECT_ICMPX_HOST_UNREACH, 1113 NFT_REJECT_ICMPX_ADMIN_PROHIBITED, 1114 __NFT_REJECT_ICMPX_MAX 1115 }; 1116 #define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1) 1117 1118 /** 1119 * enum nft_reject_attributes - nf_tables reject expression netlink attributes 1120 * 1121 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types) 1122 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8) 1123 */ 1124 enum nft_reject_attributes { 1125 NFTA_REJECT_UNSPEC, 1126 NFTA_REJECT_TYPE, 1127 NFTA_REJECT_ICMP_CODE, 1128 __NFTA_REJECT_MAX 1129 }; 1130 #define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1) 1131 1132 /** 1133 * enum nft_nat_types - nf_tables nat expression NAT types 1134 * 1135 * @NFT_NAT_SNAT: source NAT 1136 * @NFT_NAT_DNAT: destination NAT 1137 */ 1138 enum nft_nat_types { 1139 NFT_NAT_SNAT, 1140 NFT_NAT_DNAT, 1141 }; 1142 1143 /** 1144 * enum nft_nat_attributes - nf_tables nat expression netlink attributes 1145 * 1146 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types) 1147 * @NFTA_NAT_FAMILY: NAT family (NLA_U32) 1148 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers) 1149 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers) 1150 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1151 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1152 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1153 */ 1154 enum nft_nat_attributes { 1155 NFTA_NAT_UNSPEC, 1156 NFTA_NAT_TYPE, 1157 NFTA_NAT_FAMILY, 1158 NFTA_NAT_REG_ADDR_MIN, 1159 NFTA_NAT_REG_ADDR_MAX, 1160 NFTA_NAT_REG_PROTO_MIN, 1161 NFTA_NAT_REG_PROTO_MAX, 1162 NFTA_NAT_FLAGS, 1163 __NFTA_NAT_MAX 1164 }; 1165 #define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1) 1166 1167 /** 1168 * enum nft_masq_attributes - nf_tables masquerade expression attributes 1169 * 1170 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1171 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1172 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1173 */ 1174 enum nft_masq_attributes { 1175 NFTA_MASQ_UNSPEC, 1176 NFTA_MASQ_FLAGS, 1177 NFTA_MASQ_REG_PROTO_MIN, 1178 NFTA_MASQ_REG_PROTO_MAX, 1179 __NFTA_MASQ_MAX 1180 }; 1181 #define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1) 1182 1183 /** 1184 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes 1185 * 1186 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1187 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1188 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1189 */ 1190 enum nft_redir_attributes { 1191 NFTA_REDIR_UNSPEC, 1192 NFTA_REDIR_REG_PROTO_MIN, 1193 NFTA_REDIR_REG_PROTO_MAX, 1194 NFTA_REDIR_FLAGS, 1195 __NFTA_REDIR_MAX 1196 }; 1197 #define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1) 1198 1199 /** 1200 * enum nft_dup_attributes - nf_tables dup expression netlink attributes 1201 * 1202 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers) 1203 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register) 1204 */ 1205 enum nft_dup_attributes { 1206 NFTA_DUP_UNSPEC, 1207 NFTA_DUP_SREG_ADDR, 1208 NFTA_DUP_SREG_DEV, 1209 __NFTA_DUP_MAX 1210 }; 1211 #define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1) 1212 1213 /** 1214 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes 1215 * 1216 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register) 1217 */ 1218 enum nft_fwd_attributes { 1219 NFTA_FWD_UNSPEC, 1220 NFTA_FWD_SREG_DEV, 1221 __NFTA_FWD_MAX 1222 }; 1223 #define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1) 1224 1225 /** 1226 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes 1227 * 1228 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register) 1229 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING) 1230 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers) 1231 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING) 1232 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32) 1233 */ 1234 enum nft_objref_attributes { 1235 NFTA_OBJREF_UNSPEC, 1236 NFTA_OBJREF_IMM_TYPE, 1237 NFTA_OBJREF_IMM_NAME, 1238 NFTA_OBJREF_SET_SREG, 1239 NFTA_OBJREF_SET_NAME, 1240 NFTA_OBJREF_SET_ID, 1241 __NFTA_OBJREF_MAX 1242 }; 1243 #define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1) 1244 1245 /** 1246 * enum nft_gen_attributes - nf_tables ruleset generation attributes 1247 * 1248 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32) 1249 */ 1250 enum nft_gen_attributes { 1251 NFTA_GEN_UNSPEC, 1252 NFTA_GEN_ID, 1253 NFTA_GEN_PROC_PID, 1254 NFTA_GEN_PROC_NAME, 1255 __NFTA_GEN_MAX 1256 }; 1257 #define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1) 1258 1259 /* 1260 * enum nft_fib_attributes - nf_tables fib expression netlink attributes 1261 * 1262 * @NFTA_FIB_DREG: destination register (NLA_U32) 1263 * @NFTA_FIB_RESULT: desired result (NLA_U32) 1264 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32) 1265 * 1266 * The FIB expression performs a route lookup according 1267 * to the packet data. 1268 */ 1269 enum nft_fib_attributes { 1270 NFTA_FIB_UNSPEC, 1271 NFTA_FIB_DREG, 1272 NFTA_FIB_RESULT, 1273 NFTA_FIB_FLAGS, 1274 __NFTA_FIB_MAX 1275 }; 1276 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1) 1277 1278 enum nft_fib_result { 1279 NFT_FIB_RESULT_UNSPEC, 1280 NFT_FIB_RESULT_OIF, 1281 NFT_FIB_RESULT_OIFNAME, 1282 NFT_FIB_RESULT_ADDRTYPE, 1283 __NFT_FIB_RESULT_MAX 1284 }; 1285 #define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1) 1286 1287 enum nft_fib_flags { 1288 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */ 1289 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */ 1290 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */ 1291 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */ 1292 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */ 1293 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */ 1294 }; 1295 1296 enum nft_ct_helper_attributes { 1297 NFTA_CT_HELPER_UNSPEC, 1298 NFTA_CT_HELPER_NAME, 1299 NFTA_CT_HELPER_L3PROTO, 1300 NFTA_CT_HELPER_L4PROTO, 1301 __NFTA_CT_HELPER_MAX, 1302 }; 1303 #define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1) 1304 1305 #define NFT_OBJECT_UNSPEC 0 1306 #define NFT_OBJECT_COUNTER 1 1307 #define NFT_OBJECT_QUOTA 2 1308 #define NFT_OBJECT_CT_HELPER 3 1309 #define NFT_OBJECT_LIMIT 4 1310 #define __NFT_OBJECT_MAX 5 1311 #define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1) 1312 1313 /** 1314 * enum nft_object_attributes - nf_tables stateful object netlink attributes 1315 * 1316 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING) 1317 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING) 1318 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32) 1319 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED) 1320 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32) 1321 * @NFTA_OBJ_HANDLE: object handle (NLA_U64) 1322 */ 1323 enum nft_object_attributes { 1324 NFTA_OBJ_UNSPEC, 1325 NFTA_OBJ_TABLE, 1326 NFTA_OBJ_NAME, 1327 NFTA_OBJ_TYPE, 1328 NFTA_OBJ_DATA, 1329 NFTA_OBJ_USE, 1330 NFTA_OBJ_HANDLE, 1331 NFTA_OBJ_PAD, 1332 __NFTA_OBJ_MAX 1333 }; 1334 #define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1) 1335 1336 /** 1337 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes 1338 * 1339 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING) 1340 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING) 1341 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32) 1342 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32) 1343 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64) 1344 */ 1345 enum nft_flowtable_attributes { 1346 NFTA_FLOWTABLE_UNSPEC, 1347 NFTA_FLOWTABLE_TABLE, 1348 NFTA_FLOWTABLE_NAME, 1349 NFTA_FLOWTABLE_HOOK, 1350 NFTA_FLOWTABLE_USE, 1351 NFTA_FLOWTABLE_HANDLE, 1352 NFTA_FLOWTABLE_PAD, 1353 __NFTA_FLOWTABLE_MAX 1354 }; 1355 #define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1) 1356 1357 /** 1358 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes 1359 * 1360 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32) 1361 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32) 1362 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED) 1363 */ 1364 enum nft_flowtable_hook_attributes { 1365 NFTA_FLOWTABLE_HOOK_UNSPEC, 1366 NFTA_FLOWTABLE_HOOK_NUM, 1367 NFTA_FLOWTABLE_HOOK_PRIORITY, 1368 NFTA_FLOWTABLE_HOOK_DEVS, 1369 __NFTA_FLOWTABLE_HOOK_MAX 1370 }; 1371 #define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1) 1372 1373 /** 1374 * enum nft_device_attributes - nf_tables device netlink attributes 1375 * 1376 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING) 1377 */ 1378 enum nft_devices_attributes { 1379 NFTA_DEVICE_UNSPEC, 1380 NFTA_DEVICE_NAME, 1381 __NFTA_DEVICE_MAX 1382 }; 1383 #define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1) 1384 1385 1386 /** 1387 * enum nft_trace_attributes - nf_tables trace netlink attributes 1388 * 1389 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING) 1390 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING) 1391 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64) 1392 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types) 1393 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts) 1394 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32) 1395 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY) 1396 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY) 1397 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY) 1398 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32) 1399 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16) 1400 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32) 1401 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16) 1402 * @NFTA_TRACE_MARK: nfmark (NLA_U32) 1403 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32) 1404 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32) 1405 */ 1406 enum nft_trace_attributes { 1407 NFTA_TRACE_UNSPEC, 1408 NFTA_TRACE_TABLE, 1409 NFTA_TRACE_CHAIN, 1410 NFTA_TRACE_RULE_HANDLE, 1411 NFTA_TRACE_TYPE, 1412 NFTA_TRACE_VERDICT, 1413 NFTA_TRACE_ID, 1414 NFTA_TRACE_LL_HEADER, 1415 NFTA_TRACE_NETWORK_HEADER, 1416 NFTA_TRACE_TRANSPORT_HEADER, 1417 NFTA_TRACE_IIF, 1418 NFTA_TRACE_IIFTYPE, 1419 NFTA_TRACE_OIF, 1420 NFTA_TRACE_OIFTYPE, 1421 NFTA_TRACE_MARK, 1422 NFTA_TRACE_NFPROTO, 1423 NFTA_TRACE_POLICY, 1424 NFTA_TRACE_PAD, 1425 __NFTA_TRACE_MAX 1426 }; 1427 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1) 1428 1429 enum nft_trace_types { 1430 NFT_TRACETYPE_UNSPEC, 1431 NFT_TRACETYPE_POLICY, 1432 NFT_TRACETYPE_RETURN, 1433 NFT_TRACETYPE_RULE, 1434 __NFT_TRACETYPE_MAX 1435 }; 1436 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1) 1437 1438 /** 1439 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes 1440 * 1441 * @NFTA_NG_DREG: destination register (NLA_U32) 1442 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32) 1443 * @NFTA_NG_TYPE: operation type (NLA_U32) 1444 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32) 1445 */ 1446 enum nft_ng_attributes { 1447 NFTA_NG_UNSPEC, 1448 NFTA_NG_DREG, 1449 NFTA_NG_MODULUS, 1450 NFTA_NG_TYPE, 1451 NFTA_NG_OFFSET, 1452 __NFTA_NG_MAX 1453 }; 1454 #define NFTA_NG_MAX (__NFTA_NG_MAX - 1) 1455 1456 enum nft_ng_types { 1457 NFT_NG_INCREMENTAL, 1458 NFT_NG_RANDOM, 1459 __NFT_NG_MAX 1460 }; 1461 #define NFT_NG_MAX (__NFT_NG_MAX - 1) 1462 1463 #endif /* _LINUX_NF_TABLES_H */ 1464