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