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