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 #define NFT_OSF_MAXGENRELEN 16 12 13 /** 14 * enum nft_registers - nf_tables registers 15 * 16 * nf_tables used to have five registers: a verdict register and four data 17 * registers of size 16. The data registers have been changed to 16 registers 18 * of size 4. For compatibility reasons, the NFT_REG_[1-4] registers still 19 * map to areas of size 16, the 4 byte registers are addressed using 20 * NFT_REG32_00 - NFT_REG32_15. 21 */ 22 enum nft_registers { 23 NFT_REG_VERDICT, 24 NFT_REG_1, 25 NFT_REG_2, 26 NFT_REG_3, 27 NFT_REG_4, 28 __NFT_REG_MAX, 29 30 NFT_REG32_00 = 8, 31 NFT_REG32_01, 32 NFT_REG32_02, 33 NFT_REG32_03, 34 NFT_REG32_04, 35 NFT_REG32_05, 36 NFT_REG32_06, 37 NFT_REG32_07, 38 NFT_REG32_08, 39 NFT_REG32_09, 40 NFT_REG32_10, 41 NFT_REG32_11, 42 NFT_REG32_12, 43 NFT_REG32_13, 44 NFT_REG32_14, 45 NFT_REG32_15, 46 }; 47 #define NFT_REG_MAX (__NFT_REG_MAX - 1) 48 49 #define NFT_REG_SIZE 16 50 #define NFT_REG32_SIZE 4 51 #define NFT_REG32_COUNT (NFT_REG32_15 - NFT_REG32_00 + 1) 52 53 /** 54 * enum nft_verdicts - nf_tables internal verdicts 55 * 56 * @NFT_CONTINUE: continue evaluation of the current rule 57 * @NFT_BREAK: terminate evaluation of the current rule 58 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain 59 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack 60 * @NFT_RETURN: return to the topmost chain on the jump stack 61 * 62 * The nf_tables verdicts share their numeric space with the netfilter verdicts. 63 */ 64 enum nft_verdicts { 65 NFT_CONTINUE = -1, 66 NFT_BREAK = -2, 67 NFT_JUMP = -3, 68 NFT_GOTO = -4, 69 NFT_RETURN = -5, 70 }; 71 72 /** 73 * enum nf_tables_msg_types - nf_tables netlink message types 74 * 75 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes) 76 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes) 77 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes) 78 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes) 79 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes) 80 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes) 81 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes) 82 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes) 83 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes) 84 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes) 85 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes) 86 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes) 87 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes) 88 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes) 89 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes) 90 * @NFT_MSG_NEWGEN: announce a new generation, only for events (enum nft_gen_attributes) 91 * @NFT_MSG_GETGEN: get the rule-set generation (enum nft_gen_attributes) 92 * @NFT_MSG_TRACE: trace event (enum nft_trace_attributes) 93 * @NFT_MSG_NEWOBJ: create a stateful object (enum nft_obj_attributes) 94 * @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes) 95 * @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes) 96 * @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum nft_obj_attributes) 97 * @NFT_MSG_NEWFLOWTABLE: add new flow table (enum nft_flowtable_attributes) 98 * @NFT_MSG_GETFLOWTABLE: get flow table (enum nft_flowtable_attributes) 99 * @NFT_MSG_DELFLOWTABLE: delete flow table (enum nft_flowtable_attributes) 100 */ 101 enum nf_tables_msg_types { 102 NFT_MSG_NEWTABLE, 103 NFT_MSG_GETTABLE, 104 NFT_MSG_DELTABLE, 105 NFT_MSG_NEWCHAIN, 106 NFT_MSG_GETCHAIN, 107 NFT_MSG_DELCHAIN, 108 NFT_MSG_NEWRULE, 109 NFT_MSG_GETRULE, 110 NFT_MSG_DELRULE, 111 NFT_MSG_NEWSET, 112 NFT_MSG_GETSET, 113 NFT_MSG_DELSET, 114 NFT_MSG_NEWSETELEM, 115 NFT_MSG_GETSETELEM, 116 NFT_MSG_DELSETELEM, 117 NFT_MSG_NEWGEN, 118 NFT_MSG_GETGEN, 119 NFT_MSG_TRACE, 120 NFT_MSG_NEWOBJ, 121 NFT_MSG_GETOBJ, 122 NFT_MSG_DELOBJ, 123 NFT_MSG_GETOBJ_RESET, 124 NFT_MSG_NEWFLOWTABLE, 125 NFT_MSG_GETFLOWTABLE, 126 NFT_MSG_DELFLOWTABLE, 127 NFT_MSG_MAX, 128 }; 129 130 /** 131 * enum nft_list_attributes - nf_tables generic list netlink attributes 132 * 133 * @NFTA_LIST_ELEM: list element (NLA_NESTED) 134 */ 135 enum nft_list_attributes { 136 NFTA_LIST_UNSPEC, 137 NFTA_LIST_ELEM, 138 __NFTA_LIST_MAX 139 }; 140 #define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1) 141 142 /** 143 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes 144 * 145 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32) 146 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32) 147 * @NFTA_HOOK_DEV: netdevice name (NLA_STRING) 148 * @NFTA_HOOK_DEVS: list of netdevices (NLA_NESTED) 149 */ 150 enum nft_hook_attributes { 151 NFTA_HOOK_UNSPEC, 152 NFTA_HOOK_HOOKNUM, 153 NFTA_HOOK_PRIORITY, 154 NFTA_HOOK_DEV, 155 NFTA_HOOK_DEVS, 156 __NFTA_HOOK_MAX 157 }; 158 #define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1) 159 160 /** 161 * enum nft_table_flags - nf_tables table flags 162 * 163 * @NFT_TABLE_F_DORMANT: this table is not active 164 */ 165 enum nft_table_flags { 166 NFT_TABLE_F_DORMANT = 0x1, 167 NFT_TABLE_F_OWNER = 0x2, 168 }; 169 #define NFT_TABLE_F_MASK (NFT_TABLE_F_DORMANT | \ 170 NFT_TABLE_F_OWNER) 171 172 /** 173 * enum nft_table_attributes - nf_tables table netlink attributes 174 * 175 * @NFTA_TABLE_NAME: name of the table (NLA_STRING) 176 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32) 177 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32) 178 * @NFTA_TABLE_USERDATA: user data (NLA_BINARY) 179 * @NFTA_TABLE_OWNER: owner of this table through netlink portID (NLA_U32) 180 */ 181 enum nft_table_attributes { 182 NFTA_TABLE_UNSPEC, 183 NFTA_TABLE_NAME, 184 NFTA_TABLE_FLAGS, 185 NFTA_TABLE_USE, 186 NFTA_TABLE_HANDLE, 187 NFTA_TABLE_PAD, 188 NFTA_TABLE_USERDATA, 189 NFTA_TABLE_OWNER, 190 __NFTA_TABLE_MAX 191 }; 192 #define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1) 193 194 enum nft_chain_flags { 195 NFT_CHAIN_BASE = (1 << 0), 196 NFT_CHAIN_HW_OFFLOAD = (1 << 1), 197 NFT_CHAIN_BINDING = (1 << 2), 198 }; 199 #define NFT_CHAIN_FLAGS (NFT_CHAIN_BASE | \ 200 NFT_CHAIN_HW_OFFLOAD | \ 201 NFT_CHAIN_BINDING) 202 203 /** 204 * enum nft_chain_attributes - nf_tables chain netlink attributes 205 * 206 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING) 207 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64) 208 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING) 209 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes) 210 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32) 211 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32) 212 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING) 213 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes) 214 * @NFTA_CHAIN_FLAGS: chain flags 215 * @NFTA_CHAIN_ID: uniquely identifies a chain in a transaction (NLA_U32) 216 * @NFTA_CHAIN_USERDATA: user data (NLA_BINARY) 217 */ 218 enum nft_chain_attributes { 219 NFTA_CHAIN_UNSPEC, 220 NFTA_CHAIN_TABLE, 221 NFTA_CHAIN_HANDLE, 222 NFTA_CHAIN_NAME, 223 NFTA_CHAIN_HOOK, 224 NFTA_CHAIN_POLICY, 225 NFTA_CHAIN_USE, 226 NFTA_CHAIN_TYPE, 227 NFTA_CHAIN_COUNTERS, 228 NFTA_CHAIN_PAD, 229 NFTA_CHAIN_FLAGS, 230 NFTA_CHAIN_ID, 231 NFTA_CHAIN_USERDATA, 232 __NFTA_CHAIN_MAX 233 }; 234 #define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1) 235 236 /** 237 * enum nft_rule_attributes - nf_tables rule netlink attributes 238 * 239 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING) 240 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING) 241 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64) 242 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes) 243 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes) 244 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64) 245 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN) 246 * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32) 247 * @NFTA_RULE_POSITION_ID: transaction unique identifier of the previous rule (NLA_U32) 248 */ 249 enum nft_rule_attributes { 250 NFTA_RULE_UNSPEC, 251 NFTA_RULE_TABLE, 252 NFTA_RULE_CHAIN, 253 NFTA_RULE_HANDLE, 254 NFTA_RULE_EXPRESSIONS, 255 NFTA_RULE_COMPAT, 256 NFTA_RULE_POSITION, 257 NFTA_RULE_USERDATA, 258 NFTA_RULE_PAD, 259 NFTA_RULE_ID, 260 NFTA_RULE_POSITION_ID, 261 NFTA_RULE_CHAIN_ID, 262 __NFTA_RULE_MAX 263 }; 264 #define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1) 265 266 /** 267 * enum nft_rule_compat_flags - nf_tables rule compat flags 268 * 269 * @NFT_RULE_COMPAT_F_UNUSED: unused 270 * @NFT_RULE_COMPAT_F_INV: invert the check result 271 */ 272 enum nft_rule_compat_flags { 273 NFT_RULE_COMPAT_F_UNUSED = (1 << 0), 274 NFT_RULE_COMPAT_F_INV = (1 << 1), 275 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV, 276 }; 277 278 /** 279 * enum nft_rule_compat_attributes - nf_tables rule compat attributes 280 * 281 * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32) 282 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32) 283 */ 284 enum nft_rule_compat_attributes { 285 NFTA_RULE_COMPAT_UNSPEC, 286 NFTA_RULE_COMPAT_PROTO, 287 NFTA_RULE_COMPAT_FLAGS, 288 __NFTA_RULE_COMPAT_MAX 289 }; 290 #define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1) 291 292 /** 293 * enum nft_set_flags - nf_tables set flags 294 * 295 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink 296 * @NFT_SET_CONSTANT: set contents may not change while bound 297 * @NFT_SET_INTERVAL: set contains intervals 298 * @NFT_SET_MAP: set is used as a dictionary 299 * @NFT_SET_TIMEOUT: set uses timeouts 300 * @NFT_SET_EVAL: set can be updated from the evaluation path 301 * @NFT_SET_OBJECT: set contains stateful objects 302 * @NFT_SET_CONCAT: set contains a concatenation 303 * @NFT_SET_EXPR: set contains expressions 304 */ 305 enum nft_set_flags { 306 NFT_SET_ANONYMOUS = 0x1, 307 NFT_SET_CONSTANT = 0x2, 308 NFT_SET_INTERVAL = 0x4, 309 NFT_SET_MAP = 0x8, 310 NFT_SET_TIMEOUT = 0x10, 311 NFT_SET_EVAL = 0x20, 312 NFT_SET_OBJECT = 0x40, 313 NFT_SET_CONCAT = 0x80, 314 NFT_SET_EXPR = 0x100, 315 }; 316 317 /** 318 * enum nft_set_policies - set selection policy 319 * 320 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use 321 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance 322 */ 323 enum nft_set_policies { 324 NFT_SET_POL_PERFORMANCE, 325 NFT_SET_POL_MEMORY, 326 }; 327 328 /** 329 * enum nft_set_desc_attributes - set element description 330 * 331 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32) 332 * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED) 333 */ 334 enum nft_set_desc_attributes { 335 NFTA_SET_DESC_UNSPEC, 336 NFTA_SET_DESC_SIZE, 337 NFTA_SET_DESC_CONCAT, 338 __NFTA_SET_DESC_MAX 339 }; 340 #define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1) 341 342 /** 343 * enum nft_set_field_attributes - attributes of concatenated fields 344 * 345 * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32) 346 */ 347 enum nft_set_field_attributes { 348 NFTA_SET_FIELD_UNSPEC, 349 NFTA_SET_FIELD_LEN, 350 __NFTA_SET_FIELD_MAX 351 }; 352 #define NFTA_SET_FIELD_MAX (__NFTA_SET_FIELD_MAX - 1) 353 354 /** 355 * enum nft_set_attributes - nf_tables set netlink attributes 356 * 357 * @NFTA_SET_TABLE: table name (NLA_STRING) 358 * @NFTA_SET_NAME: set name (NLA_STRING) 359 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32) 360 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32) 361 * @NFTA_SET_KEY_LEN: key data length (NLA_U32) 362 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32) 363 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32) 364 * @NFTA_SET_POLICY: selection policy (NLA_U32) 365 * @NFTA_SET_DESC: set description (NLA_NESTED) 366 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 367 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64) 368 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32) 369 * @NFTA_SET_USERDATA: user data (NLA_BINARY) 370 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*) 371 * @NFTA_SET_HANDLE: set handle (NLA_U64) 372 * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes) 373 * @NFTA_SET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes) 374 */ 375 enum nft_set_attributes { 376 NFTA_SET_UNSPEC, 377 NFTA_SET_TABLE, 378 NFTA_SET_NAME, 379 NFTA_SET_FLAGS, 380 NFTA_SET_KEY_TYPE, 381 NFTA_SET_KEY_LEN, 382 NFTA_SET_DATA_TYPE, 383 NFTA_SET_DATA_LEN, 384 NFTA_SET_POLICY, 385 NFTA_SET_DESC, 386 NFTA_SET_ID, 387 NFTA_SET_TIMEOUT, 388 NFTA_SET_GC_INTERVAL, 389 NFTA_SET_USERDATA, 390 NFTA_SET_PAD, 391 NFTA_SET_OBJ_TYPE, 392 NFTA_SET_HANDLE, 393 NFTA_SET_EXPR, 394 NFTA_SET_EXPRESSIONS, 395 __NFTA_SET_MAX 396 }; 397 #define NFTA_SET_MAX (__NFTA_SET_MAX - 1) 398 399 /** 400 * enum nft_set_elem_flags - nf_tables set element flags 401 * 402 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval 403 * @NFT_SET_ELEM_CATCHALL: special catch-all element 404 */ 405 enum nft_set_elem_flags { 406 NFT_SET_ELEM_INTERVAL_END = 0x1, 407 NFT_SET_ELEM_CATCHALL = 0x2, 408 }; 409 410 /** 411 * enum nft_set_elem_attributes - nf_tables set element netlink attributes 412 * 413 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data) 414 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes) 415 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32) 416 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64) 417 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64) 418 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY) 419 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes) 420 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING) 421 * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data) 422 * @NFTA_SET_ELEM_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes) 423 */ 424 enum nft_set_elem_attributes { 425 NFTA_SET_ELEM_UNSPEC, 426 NFTA_SET_ELEM_KEY, 427 NFTA_SET_ELEM_DATA, 428 NFTA_SET_ELEM_FLAGS, 429 NFTA_SET_ELEM_TIMEOUT, 430 NFTA_SET_ELEM_EXPIRATION, 431 NFTA_SET_ELEM_USERDATA, 432 NFTA_SET_ELEM_EXPR, 433 NFTA_SET_ELEM_PAD, 434 NFTA_SET_ELEM_OBJREF, 435 NFTA_SET_ELEM_KEY_END, 436 NFTA_SET_ELEM_EXPRESSIONS, 437 __NFTA_SET_ELEM_MAX 438 }; 439 #define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1) 440 441 /** 442 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes 443 * 444 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING) 445 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING) 446 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes) 447 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 448 */ 449 enum nft_set_elem_list_attributes { 450 NFTA_SET_ELEM_LIST_UNSPEC, 451 NFTA_SET_ELEM_LIST_TABLE, 452 NFTA_SET_ELEM_LIST_SET, 453 NFTA_SET_ELEM_LIST_ELEMENTS, 454 NFTA_SET_ELEM_LIST_SET_ID, 455 __NFTA_SET_ELEM_LIST_MAX 456 }; 457 #define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1) 458 459 /** 460 * enum nft_data_types - nf_tables data types 461 * 462 * @NFT_DATA_VALUE: generic data 463 * @NFT_DATA_VERDICT: netfilter verdict 464 * 465 * The type of data is usually determined by the kernel directly and is not 466 * explicitly specified by userspace. The only difference are sets, where 467 * userspace specifies the key and mapping data types. 468 * 469 * The values 0xffffff00-0xffffffff are reserved for internally used types. 470 * The remaining range can be freely used by userspace to encode types, all 471 * values are equivalent to NFT_DATA_VALUE. 472 */ 473 enum nft_data_types { 474 NFT_DATA_VALUE, 475 NFT_DATA_VERDICT = 0xffffff00U, 476 }; 477 478 #define NFT_DATA_RESERVED_MASK 0xffffff00U 479 480 /** 481 * enum nft_data_attributes - nf_tables data netlink attributes 482 * 483 * @NFTA_DATA_VALUE: generic data (NLA_BINARY) 484 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes) 485 */ 486 enum nft_data_attributes { 487 NFTA_DATA_UNSPEC, 488 NFTA_DATA_VALUE, 489 NFTA_DATA_VERDICT, 490 __NFTA_DATA_MAX 491 }; 492 #define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1) 493 494 /* Maximum length of a value */ 495 #define NFT_DATA_VALUE_MAXLEN 64 496 497 /** 498 * enum nft_verdict_attributes - nf_tables verdict netlink attributes 499 * 500 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts) 501 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING) 502 * @NFTA_VERDICT_CHAIN_ID: jump target chain ID (NLA_U32) 503 */ 504 enum nft_verdict_attributes { 505 NFTA_VERDICT_UNSPEC, 506 NFTA_VERDICT_CODE, 507 NFTA_VERDICT_CHAIN, 508 NFTA_VERDICT_CHAIN_ID, 509 __NFTA_VERDICT_MAX 510 }; 511 #define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1) 512 513 /** 514 * enum nft_expr_attributes - nf_tables expression netlink attributes 515 * 516 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING) 517 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED) 518 */ 519 enum nft_expr_attributes { 520 NFTA_EXPR_UNSPEC, 521 NFTA_EXPR_NAME, 522 NFTA_EXPR_DATA, 523 __NFTA_EXPR_MAX 524 }; 525 #define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1) 526 527 /** 528 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes 529 * 530 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32) 531 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes) 532 */ 533 enum nft_immediate_attributes { 534 NFTA_IMMEDIATE_UNSPEC, 535 NFTA_IMMEDIATE_DREG, 536 NFTA_IMMEDIATE_DATA, 537 __NFTA_IMMEDIATE_MAX 538 }; 539 #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1) 540 541 /** 542 * enum nft_bitwise_ops - nf_tables bitwise operations 543 * 544 * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and 545 * XOR boolean operations 546 * @NFT_BITWISE_LSHIFT: left-shift operation 547 * @NFT_BITWISE_RSHIFT: right-shift operation 548 */ 549 enum nft_bitwise_ops { 550 NFT_BITWISE_BOOL, 551 NFT_BITWISE_LSHIFT, 552 NFT_BITWISE_RSHIFT, 553 }; 554 555 /** 556 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes 557 * 558 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers) 559 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers) 560 * @NFTA_BITWISE_LEN: length of operands (NLA_U32) 561 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes) 562 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes) 563 * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops) 564 * @NFTA_BITWISE_DATA: argument for non-boolean operations 565 * (NLA_NESTED: nft_data_attributes) 566 * 567 * The bitwise expression supports boolean and shift operations. It implements 568 * the boolean operations by performing the following operation: 569 * 570 * dreg = (sreg & mask) ^ xor 571 * 572 * with these mask and xor values: 573 * 574 * mask xor 575 * NOT: 1 1 576 * OR: ~x x 577 * XOR: 1 x 578 * AND: x 0 579 */ 580 enum nft_bitwise_attributes { 581 NFTA_BITWISE_UNSPEC, 582 NFTA_BITWISE_SREG, 583 NFTA_BITWISE_DREG, 584 NFTA_BITWISE_LEN, 585 NFTA_BITWISE_MASK, 586 NFTA_BITWISE_XOR, 587 NFTA_BITWISE_OP, 588 NFTA_BITWISE_DATA, 589 __NFTA_BITWISE_MAX 590 }; 591 #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1) 592 593 /** 594 * enum nft_byteorder_ops - nf_tables byteorder operators 595 * 596 * @NFT_BYTEORDER_NTOH: network to host operator 597 * @NFT_BYTEORDER_HTON: host to network operator 598 */ 599 enum nft_byteorder_ops { 600 NFT_BYTEORDER_NTOH, 601 NFT_BYTEORDER_HTON, 602 }; 603 604 /** 605 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes 606 * 607 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers) 608 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers) 609 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops) 610 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32) 611 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4) 612 */ 613 enum nft_byteorder_attributes { 614 NFTA_BYTEORDER_UNSPEC, 615 NFTA_BYTEORDER_SREG, 616 NFTA_BYTEORDER_DREG, 617 NFTA_BYTEORDER_OP, 618 NFTA_BYTEORDER_LEN, 619 NFTA_BYTEORDER_SIZE, 620 __NFTA_BYTEORDER_MAX 621 }; 622 #define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1) 623 624 /** 625 * enum nft_cmp_ops - nf_tables relational operator 626 * 627 * @NFT_CMP_EQ: equal 628 * @NFT_CMP_NEQ: not equal 629 * @NFT_CMP_LT: less than 630 * @NFT_CMP_LTE: less than or equal to 631 * @NFT_CMP_GT: greater than 632 * @NFT_CMP_GTE: greater than or equal to 633 */ 634 enum nft_cmp_ops { 635 NFT_CMP_EQ, 636 NFT_CMP_NEQ, 637 NFT_CMP_LT, 638 NFT_CMP_LTE, 639 NFT_CMP_GT, 640 NFT_CMP_GTE, 641 }; 642 643 /** 644 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes 645 * 646 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers) 647 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops) 648 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes) 649 */ 650 enum nft_cmp_attributes { 651 NFTA_CMP_UNSPEC, 652 NFTA_CMP_SREG, 653 NFTA_CMP_OP, 654 NFTA_CMP_DATA, 655 __NFTA_CMP_MAX 656 }; 657 #define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1) 658 659 /** 660 * enum nft_range_ops - nf_tables range operator 661 * 662 * @NFT_RANGE_EQ: equal 663 * @NFT_RANGE_NEQ: not equal 664 */ 665 enum nft_range_ops { 666 NFT_RANGE_EQ, 667 NFT_RANGE_NEQ, 668 }; 669 670 /** 671 * enum nft_range_attributes - nf_tables range expression netlink attributes 672 * 673 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers) 674 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops) 675 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes) 676 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes) 677 */ 678 enum nft_range_attributes { 679 NFTA_RANGE_UNSPEC, 680 NFTA_RANGE_SREG, 681 NFTA_RANGE_OP, 682 NFTA_RANGE_FROM_DATA, 683 NFTA_RANGE_TO_DATA, 684 __NFTA_RANGE_MAX 685 }; 686 #define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1) 687 688 enum nft_lookup_flags { 689 NFT_LOOKUP_F_INV = (1 << 0), 690 }; 691 692 /** 693 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes 694 * 695 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING) 696 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers) 697 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers) 698 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32) 699 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags) 700 */ 701 enum nft_lookup_attributes { 702 NFTA_LOOKUP_UNSPEC, 703 NFTA_LOOKUP_SET, 704 NFTA_LOOKUP_SREG, 705 NFTA_LOOKUP_DREG, 706 NFTA_LOOKUP_SET_ID, 707 NFTA_LOOKUP_FLAGS, 708 __NFTA_LOOKUP_MAX 709 }; 710 #define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1) 711 712 enum nft_dynset_ops { 713 NFT_DYNSET_OP_ADD, 714 NFT_DYNSET_OP_UPDATE, 715 NFT_DYNSET_OP_DELETE, 716 }; 717 718 enum nft_dynset_flags { 719 NFT_DYNSET_F_INV = (1 << 0), 720 NFT_DYNSET_F_EXPR = (1 << 1), 721 }; 722 723 /** 724 * enum nft_dynset_attributes - dynset expression attributes 725 * 726 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING) 727 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32) 728 * @NFTA_DYNSET_OP: operation (NLA_U32) 729 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32) 730 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32) 731 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64) 732 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes) 733 * @NFTA_DYNSET_FLAGS: flags (NLA_U32) 734 * @NFTA_DYNSET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes) 735 */ 736 enum nft_dynset_attributes { 737 NFTA_DYNSET_UNSPEC, 738 NFTA_DYNSET_SET_NAME, 739 NFTA_DYNSET_SET_ID, 740 NFTA_DYNSET_OP, 741 NFTA_DYNSET_SREG_KEY, 742 NFTA_DYNSET_SREG_DATA, 743 NFTA_DYNSET_TIMEOUT, 744 NFTA_DYNSET_EXPR, 745 NFTA_DYNSET_PAD, 746 NFTA_DYNSET_FLAGS, 747 NFTA_DYNSET_EXPRESSIONS, 748 __NFTA_DYNSET_MAX, 749 }; 750 #define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1) 751 752 /** 753 * enum nft_payload_bases - nf_tables payload expression offset bases 754 * 755 * @NFT_PAYLOAD_LL_HEADER: link layer header 756 * @NFT_PAYLOAD_NETWORK_HEADER: network header 757 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header 758 * @NFT_PAYLOAD_INNER_HEADER: inner header / payload 759 */ 760 enum nft_payload_bases { 761 NFT_PAYLOAD_LL_HEADER, 762 NFT_PAYLOAD_NETWORK_HEADER, 763 NFT_PAYLOAD_TRANSPORT_HEADER, 764 NFT_PAYLOAD_INNER_HEADER, 765 }; 766 767 /** 768 * enum nft_payload_csum_types - nf_tables payload expression checksum types 769 * 770 * @NFT_PAYLOAD_CSUM_NONE: no checksumming 771 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791) 772 * @NFT_PAYLOAD_CSUM_SCTP: CRC-32c, for use in SCTP header (RFC 3309) 773 */ 774 enum nft_payload_csum_types { 775 NFT_PAYLOAD_CSUM_NONE, 776 NFT_PAYLOAD_CSUM_INET, 777 NFT_PAYLOAD_CSUM_SCTP, 778 }; 779 780 enum nft_payload_csum_flags { 781 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0), 782 }; 783 784 /** 785 * enum nft_payload_attributes - nf_tables payload expression netlink attributes 786 * 787 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers) 788 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases) 789 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32) 790 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32) 791 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers) 792 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32) 793 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32) 794 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32) 795 */ 796 enum nft_payload_attributes { 797 NFTA_PAYLOAD_UNSPEC, 798 NFTA_PAYLOAD_DREG, 799 NFTA_PAYLOAD_BASE, 800 NFTA_PAYLOAD_OFFSET, 801 NFTA_PAYLOAD_LEN, 802 NFTA_PAYLOAD_SREG, 803 NFTA_PAYLOAD_CSUM_TYPE, 804 NFTA_PAYLOAD_CSUM_OFFSET, 805 NFTA_PAYLOAD_CSUM_FLAGS, 806 __NFTA_PAYLOAD_MAX 807 }; 808 #define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1) 809 810 enum nft_exthdr_flags { 811 NFT_EXTHDR_F_PRESENT = (1 << 0), 812 }; 813 814 /** 815 * enum nft_exthdr_op - nf_tables match options 816 * 817 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers 818 * @NFT_EXTHDR_OP_TCP: match against tcp options 819 * @NFT_EXTHDR_OP_IPV4: match against ipv4 options 820 * @NFT_EXTHDR_OP_SCTP: match against sctp chunks 821 */ 822 enum nft_exthdr_op { 823 NFT_EXTHDR_OP_IPV6, 824 NFT_EXTHDR_OP_TCPOPT, 825 NFT_EXTHDR_OP_IPV4, 826 NFT_EXTHDR_OP_SCTP, 827 __NFT_EXTHDR_OP_MAX 828 }; 829 #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1) 830 831 /** 832 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes 833 * 834 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers) 835 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8) 836 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32) 837 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32) 838 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32) 839 * @NFTA_EXTHDR_OP: option match type (NLA_U32) 840 * @NFTA_EXTHDR_SREG: option match type (NLA_U32) 841 */ 842 enum nft_exthdr_attributes { 843 NFTA_EXTHDR_UNSPEC, 844 NFTA_EXTHDR_DREG, 845 NFTA_EXTHDR_TYPE, 846 NFTA_EXTHDR_OFFSET, 847 NFTA_EXTHDR_LEN, 848 NFTA_EXTHDR_FLAGS, 849 NFTA_EXTHDR_OP, 850 NFTA_EXTHDR_SREG, 851 __NFTA_EXTHDR_MAX 852 }; 853 #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1) 854 855 /** 856 * enum nft_meta_keys - nf_tables meta expression keys 857 * 858 * @NFT_META_LEN: packet length (skb->len) 859 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT 860 * @NFT_META_PRIORITY: packet priority (skb->priority) 861 * @NFT_META_MARK: packet mark (skb->mark) 862 * @NFT_META_IIF: packet input interface index (dev->ifindex) 863 * @NFT_META_OIF: packet output interface index (dev->ifindex) 864 * @NFT_META_IIFNAME: packet input interface name (dev->name) 865 * @NFT_META_OIFNAME: packet output interface name (dev->name) 866 * @NFT_META_IIFTYPE: packet input interface type (dev->type) 867 * @NFT_META_OIFTYPE: packet output interface type (dev->type) 868 * @NFT_META_SKUID: originating socket UID (fsuid) 869 * @NFT_META_SKGID: originating socket GID (fsgid) 870 * @NFT_META_NFTRACE: packet nftrace bit 871 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid) 872 * @NFT_META_SECMARK: packet secmark (skb->secmark) 873 * @NFT_META_NFPROTO: netfilter protocol 874 * @NFT_META_L4PROTO: layer 4 protocol number 875 * @NFT_META_BRI_IIFNAME: packet input bridge interface name 876 * @NFT_META_BRI_OIFNAME: packet output bridge interface name 877 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback 878 * @NFT_META_CPU: cpu id through smp_processor_id() 879 * @NFT_META_IIFGROUP: packet input interface group 880 * @NFT_META_OIFGROUP: packet output interface group 881 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid) 882 * @NFT_META_PRANDOM: a 32bit pseudo-random number 883 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp) 884 * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind) 885 * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind) 886 * @NFT_META_BRI_IIFPVID: packet input bridge port pvid 887 * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto 888 * @NFT_META_TIME_NS: time since epoch (in nanoseconds) 889 * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday) 890 * @NFT_META_TIME_HOUR: hour of day (in seconds) 891 * @NFT_META_SDIF: slave device interface index 892 * @NFT_META_SDIFNAME: slave device interface name 893 */ 894 enum nft_meta_keys { 895 NFT_META_LEN, 896 NFT_META_PROTOCOL, 897 NFT_META_PRIORITY, 898 NFT_META_MARK, 899 NFT_META_IIF, 900 NFT_META_OIF, 901 NFT_META_IIFNAME, 902 NFT_META_OIFNAME, 903 NFT_META_IIFTYPE, 904 NFT_META_OIFTYPE, 905 NFT_META_SKUID, 906 NFT_META_SKGID, 907 NFT_META_NFTRACE, 908 NFT_META_RTCLASSID, 909 NFT_META_SECMARK, 910 NFT_META_NFPROTO, 911 NFT_META_L4PROTO, 912 NFT_META_BRI_IIFNAME, 913 NFT_META_BRI_OIFNAME, 914 NFT_META_PKTTYPE, 915 NFT_META_CPU, 916 NFT_META_IIFGROUP, 917 NFT_META_OIFGROUP, 918 NFT_META_CGROUP, 919 NFT_META_PRANDOM, 920 NFT_META_SECPATH, 921 NFT_META_IIFKIND, 922 NFT_META_OIFKIND, 923 NFT_META_BRI_IIFPVID, 924 NFT_META_BRI_IIFVPROTO, 925 NFT_META_TIME_NS, 926 NFT_META_TIME_DAY, 927 NFT_META_TIME_HOUR, 928 NFT_META_SDIF, 929 NFT_META_SDIFNAME, 930 }; 931 932 /** 933 * enum nft_rt_keys - nf_tables routing expression keys 934 * 935 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid) 936 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4 937 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6 938 * @NFT_RT_TCPMSS: fetch current path tcp mss 939 * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL 940 */ 941 enum nft_rt_keys { 942 NFT_RT_CLASSID, 943 NFT_RT_NEXTHOP4, 944 NFT_RT_NEXTHOP6, 945 NFT_RT_TCPMSS, 946 NFT_RT_XFRM, 947 __NFT_RT_MAX 948 }; 949 #define NFT_RT_MAX (__NFT_RT_MAX - 1) 950 951 /** 952 * enum nft_hash_types - nf_tables hash expression types 953 * 954 * @NFT_HASH_JENKINS: Jenkins Hash 955 * @NFT_HASH_SYM: Symmetric Hash 956 */ 957 enum nft_hash_types { 958 NFT_HASH_JENKINS, 959 NFT_HASH_SYM, 960 }; 961 962 /** 963 * enum nft_hash_attributes - nf_tables hash expression netlink attributes 964 * 965 * @NFTA_HASH_SREG: source register (NLA_U32) 966 * @NFTA_HASH_DREG: destination register (NLA_U32) 967 * @NFTA_HASH_LEN: source data length (NLA_U32) 968 * @NFTA_HASH_MODULUS: modulus value (NLA_U32) 969 * @NFTA_HASH_SEED: seed value (NLA_U32) 970 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32) 971 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types) 972 * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING) 973 * @NFTA_HASH_SET_ID: id of the map (NLA_U32) 974 */ 975 enum nft_hash_attributes { 976 NFTA_HASH_UNSPEC, 977 NFTA_HASH_SREG, 978 NFTA_HASH_DREG, 979 NFTA_HASH_LEN, 980 NFTA_HASH_MODULUS, 981 NFTA_HASH_SEED, 982 NFTA_HASH_OFFSET, 983 NFTA_HASH_TYPE, 984 NFTA_HASH_SET_NAME, /* deprecated */ 985 NFTA_HASH_SET_ID, /* deprecated */ 986 __NFTA_HASH_MAX, 987 }; 988 #define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1) 989 990 /** 991 * enum nft_meta_attributes - nf_tables meta expression netlink attributes 992 * 993 * @NFTA_META_DREG: destination register (NLA_U32) 994 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys) 995 * @NFTA_META_SREG: source register (NLA_U32) 996 */ 997 enum nft_meta_attributes { 998 NFTA_META_UNSPEC, 999 NFTA_META_DREG, 1000 NFTA_META_KEY, 1001 NFTA_META_SREG, 1002 __NFTA_META_MAX 1003 }; 1004 #define NFTA_META_MAX (__NFTA_META_MAX - 1) 1005 1006 /** 1007 * enum nft_rt_attributes - nf_tables routing expression netlink attributes 1008 * 1009 * @NFTA_RT_DREG: destination register (NLA_U32) 1010 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys) 1011 */ 1012 enum nft_rt_attributes { 1013 NFTA_RT_UNSPEC, 1014 NFTA_RT_DREG, 1015 NFTA_RT_KEY, 1016 __NFTA_RT_MAX 1017 }; 1018 #define NFTA_RT_MAX (__NFTA_RT_MAX - 1) 1019 1020 /** 1021 * enum nft_socket_attributes - nf_tables socket expression netlink attributes 1022 * 1023 * @NFTA_SOCKET_KEY: socket key to match 1024 * @NFTA_SOCKET_DREG: destination register 1025 * @NFTA_SOCKET_LEVEL: cgroups2 ancestor level (only for cgroupsv2) 1026 */ 1027 enum nft_socket_attributes { 1028 NFTA_SOCKET_UNSPEC, 1029 NFTA_SOCKET_KEY, 1030 NFTA_SOCKET_DREG, 1031 NFTA_SOCKET_LEVEL, 1032 __NFTA_SOCKET_MAX 1033 }; 1034 #define NFTA_SOCKET_MAX (__NFTA_SOCKET_MAX - 1) 1035 1036 /* 1037 * enum nft_socket_keys - nf_tables socket expression keys 1038 * 1039 * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option 1040 * @NFT_SOCKET_MARK: Value of the socket mark 1041 * @NFT_SOCKET_WILDCARD: Whether the socket is zero-bound (e.g. 0.0.0.0 or ::0) 1042 * @NFT_SOCKET_CGROUPV2: Match on cgroups version 2 1043 */ 1044 enum nft_socket_keys { 1045 NFT_SOCKET_TRANSPARENT, 1046 NFT_SOCKET_MARK, 1047 NFT_SOCKET_WILDCARD, 1048 NFT_SOCKET_CGROUPV2, 1049 __NFT_SOCKET_MAX 1050 }; 1051 #define NFT_SOCKET_MAX (__NFT_SOCKET_MAX - 1) 1052 1053 /** 1054 * enum nft_ct_keys - nf_tables ct expression keys 1055 * 1056 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info) 1057 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir) 1058 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status) 1059 * @NFT_CT_MARK: conntrack mark value 1060 * @NFT_CT_SECMARK: conntrack secmark value 1061 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms 1062 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack 1063 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol 1064 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated) 1065 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated) 1066 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol 1067 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source 1068 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination 1069 * @NFT_CT_LABELS: conntrack labels 1070 * @NFT_CT_PKTS: conntrack packets 1071 * @NFT_CT_BYTES: conntrack bytes 1072 * @NFT_CT_AVGPKT: conntrack average bytes per packet 1073 * @NFT_CT_ZONE: conntrack zone 1074 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack 1075 * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address) 1076 * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address) 1077 * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address) 1078 * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address) 1079 * @NFT_CT_ID: conntrack id 1080 */ 1081 enum nft_ct_keys { 1082 NFT_CT_STATE, 1083 NFT_CT_DIRECTION, 1084 NFT_CT_STATUS, 1085 NFT_CT_MARK, 1086 NFT_CT_SECMARK, 1087 NFT_CT_EXPIRATION, 1088 NFT_CT_HELPER, 1089 NFT_CT_L3PROTOCOL, 1090 NFT_CT_SRC, 1091 NFT_CT_DST, 1092 NFT_CT_PROTOCOL, 1093 NFT_CT_PROTO_SRC, 1094 NFT_CT_PROTO_DST, 1095 NFT_CT_LABELS, 1096 NFT_CT_PKTS, 1097 NFT_CT_BYTES, 1098 NFT_CT_AVGPKT, 1099 NFT_CT_ZONE, 1100 NFT_CT_EVENTMASK, 1101 NFT_CT_SRC_IP, 1102 NFT_CT_DST_IP, 1103 NFT_CT_SRC_IP6, 1104 NFT_CT_DST_IP6, 1105 NFT_CT_ID, 1106 __NFT_CT_MAX 1107 }; 1108 #define NFT_CT_MAX (__NFT_CT_MAX - 1) 1109 1110 /** 1111 * enum nft_ct_attributes - nf_tables ct expression netlink attributes 1112 * 1113 * @NFTA_CT_DREG: destination register (NLA_U32) 1114 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys) 1115 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8) 1116 * @NFTA_CT_SREG: source register (NLA_U32) 1117 */ 1118 enum nft_ct_attributes { 1119 NFTA_CT_UNSPEC, 1120 NFTA_CT_DREG, 1121 NFTA_CT_KEY, 1122 NFTA_CT_DIRECTION, 1123 NFTA_CT_SREG, 1124 __NFTA_CT_MAX 1125 }; 1126 #define NFTA_CT_MAX (__NFTA_CT_MAX - 1) 1127 1128 /** 1129 * enum nft_flow_attributes - ct offload expression attributes 1130 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING) 1131 */ 1132 enum nft_offload_attributes { 1133 NFTA_FLOW_UNSPEC, 1134 NFTA_FLOW_TABLE_NAME, 1135 __NFTA_FLOW_MAX, 1136 }; 1137 #define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1) 1138 1139 enum nft_limit_type { 1140 NFT_LIMIT_PKTS, 1141 NFT_LIMIT_PKT_BYTES 1142 }; 1143 1144 enum nft_limit_flags { 1145 NFT_LIMIT_F_INV = (1 << 0), 1146 }; 1147 1148 /** 1149 * enum nft_limit_attributes - nf_tables limit expression netlink attributes 1150 * 1151 * @NFTA_LIMIT_RATE: refill rate (NLA_U64) 1152 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64) 1153 * @NFTA_LIMIT_BURST: burst (NLA_U32) 1154 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type) 1155 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags) 1156 */ 1157 enum nft_limit_attributes { 1158 NFTA_LIMIT_UNSPEC, 1159 NFTA_LIMIT_RATE, 1160 NFTA_LIMIT_UNIT, 1161 NFTA_LIMIT_BURST, 1162 NFTA_LIMIT_TYPE, 1163 NFTA_LIMIT_FLAGS, 1164 NFTA_LIMIT_PAD, 1165 __NFTA_LIMIT_MAX 1166 }; 1167 #define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1) 1168 1169 enum nft_connlimit_flags { 1170 NFT_CONNLIMIT_F_INV = (1 << 0), 1171 }; 1172 1173 /** 1174 * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes 1175 * 1176 * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32) 1177 * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags) 1178 */ 1179 enum nft_connlimit_attributes { 1180 NFTA_CONNLIMIT_UNSPEC, 1181 NFTA_CONNLIMIT_COUNT, 1182 NFTA_CONNLIMIT_FLAGS, 1183 __NFTA_CONNLIMIT_MAX 1184 }; 1185 #define NFTA_CONNLIMIT_MAX (__NFTA_CONNLIMIT_MAX - 1) 1186 1187 /** 1188 * enum nft_counter_attributes - nf_tables counter expression netlink attributes 1189 * 1190 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64) 1191 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64) 1192 */ 1193 enum nft_counter_attributes { 1194 NFTA_COUNTER_UNSPEC, 1195 NFTA_COUNTER_BYTES, 1196 NFTA_COUNTER_PACKETS, 1197 NFTA_COUNTER_PAD, 1198 __NFTA_COUNTER_MAX 1199 }; 1200 #define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1) 1201 1202 /** 1203 * enum nft_last_attributes - nf_tables last expression netlink attributes 1204 * 1205 * @NFTA_LAST_SET: last update has been set, zero means never updated (NLA_U32) 1206 * @NFTA_LAST_MSECS: milliseconds since last update (NLA_U64) 1207 */ 1208 enum nft_last_attributes { 1209 NFTA_LAST_UNSPEC, 1210 NFTA_LAST_SET, 1211 NFTA_LAST_MSECS, 1212 NFTA_LAST_PAD, 1213 __NFTA_LAST_MAX 1214 }; 1215 #define NFTA_LAST_MAX (__NFTA_LAST_MAX - 1) 1216 1217 /** 1218 * enum nft_log_attributes - nf_tables log expression netlink attributes 1219 * 1220 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32) 1221 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING) 1222 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32) 1223 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32) 1224 * @NFTA_LOG_LEVEL: log level (NLA_U32) 1225 * @NFTA_LOG_FLAGS: logging flags (NLA_U32) 1226 */ 1227 enum nft_log_attributes { 1228 NFTA_LOG_UNSPEC, 1229 NFTA_LOG_GROUP, 1230 NFTA_LOG_PREFIX, 1231 NFTA_LOG_SNAPLEN, 1232 NFTA_LOG_QTHRESHOLD, 1233 NFTA_LOG_LEVEL, 1234 NFTA_LOG_FLAGS, 1235 __NFTA_LOG_MAX 1236 }; 1237 #define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1) 1238 1239 /** 1240 * enum nft_log_level - nf_tables log levels 1241 * 1242 * @NFT_LOGLEVEL_EMERG: system is unusable 1243 * @NFT_LOGLEVEL_ALERT: action must be taken immediately 1244 * @NFT_LOGLEVEL_CRIT: critical conditions 1245 * @NFT_LOGLEVEL_ERR: error conditions 1246 * @NFT_LOGLEVEL_WARNING: warning conditions 1247 * @NFT_LOGLEVEL_NOTICE: normal but significant condition 1248 * @NFT_LOGLEVEL_INFO: informational 1249 * @NFT_LOGLEVEL_DEBUG: debug-level messages 1250 * @NFT_LOGLEVEL_AUDIT: enabling audit logging 1251 */ 1252 enum nft_log_level { 1253 NFT_LOGLEVEL_EMERG, 1254 NFT_LOGLEVEL_ALERT, 1255 NFT_LOGLEVEL_CRIT, 1256 NFT_LOGLEVEL_ERR, 1257 NFT_LOGLEVEL_WARNING, 1258 NFT_LOGLEVEL_NOTICE, 1259 NFT_LOGLEVEL_INFO, 1260 NFT_LOGLEVEL_DEBUG, 1261 NFT_LOGLEVEL_AUDIT, 1262 __NFT_LOGLEVEL_MAX 1263 }; 1264 #define NFT_LOGLEVEL_MAX (__NFT_LOGLEVEL_MAX - 1) 1265 1266 /** 1267 * enum nft_queue_attributes - nf_tables queue expression netlink attributes 1268 * 1269 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16) 1270 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16) 1271 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16) 1272 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers) 1273 */ 1274 enum nft_queue_attributes { 1275 NFTA_QUEUE_UNSPEC, 1276 NFTA_QUEUE_NUM, 1277 NFTA_QUEUE_TOTAL, 1278 NFTA_QUEUE_FLAGS, 1279 NFTA_QUEUE_SREG_QNUM, 1280 __NFTA_QUEUE_MAX 1281 }; 1282 #define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1) 1283 1284 #define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */ 1285 #define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */ 1286 #define NFT_QUEUE_FLAG_MASK 0x03 1287 1288 enum nft_quota_flags { 1289 NFT_QUOTA_F_INV = (1 << 0), 1290 NFT_QUOTA_F_DEPLETED = (1 << 1), 1291 }; 1292 1293 /** 1294 * enum nft_quota_attributes - nf_tables quota expression netlink attributes 1295 * 1296 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16) 1297 * @NFTA_QUOTA_FLAGS: flags (NLA_U32) 1298 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64) 1299 */ 1300 enum nft_quota_attributes { 1301 NFTA_QUOTA_UNSPEC, 1302 NFTA_QUOTA_BYTES, 1303 NFTA_QUOTA_FLAGS, 1304 NFTA_QUOTA_PAD, 1305 NFTA_QUOTA_CONSUMED, 1306 __NFTA_QUOTA_MAX 1307 }; 1308 #define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1) 1309 1310 /** 1311 * enum nft_secmark_attributes - nf_tables secmark object netlink attributes 1312 * 1313 * @NFTA_SECMARK_CTX: security context (NLA_STRING) 1314 */ 1315 enum nft_secmark_attributes { 1316 NFTA_SECMARK_UNSPEC, 1317 NFTA_SECMARK_CTX, 1318 __NFTA_SECMARK_MAX, 1319 }; 1320 #define NFTA_SECMARK_MAX (__NFTA_SECMARK_MAX - 1) 1321 1322 /* Max security context length */ 1323 #define NFT_SECMARK_CTX_MAXLEN 256 1324 1325 /** 1326 * enum nft_reject_types - nf_tables reject expression reject types 1327 * 1328 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable 1329 * @NFT_REJECT_TCP_RST: reject using TCP RST 1330 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet 1331 */ 1332 enum nft_reject_types { 1333 NFT_REJECT_ICMP_UNREACH, 1334 NFT_REJECT_TCP_RST, 1335 NFT_REJECT_ICMPX_UNREACH, 1336 }; 1337 1338 /** 1339 * enum nft_reject_code - Generic reject codes for IPv4/IPv6 1340 * 1341 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable 1342 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable 1343 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable 1344 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited 1345 * 1346 * These codes are mapped to real ICMP and ICMPv6 codes. 1347 */ 1348 enum nft_reject_inet_code { 1349 NFT_REJECT_ICMPX_NO_ROUTE = 0, 1350 NFT_REJECT_ICMPX_PORT_UNREACH, 1351 NFT_REJECT_ICMPX_HOST_UNREACH, 1352 NFT_REJECT_ICMPX_ADMIN_PROHIBITED, 1353 __NFT_REJECT_ICMPX_MAX 1354 }; 1355 #define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1) 1356 1357 /** 1358 * enum nft_reject_attributes - nf_tables reject expression netlink attributes 1359 * 1360 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types) 1361 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8) 1362 */ 1363 enum nft_reject_attributes { 1364 NFTA_REJECT_UNSPEC, 1365 NFTA_REJECT_TYPE, 1366 NFTA_REJECT_ICMP_CODE, 1367 __NFTA_REJECT_MAX 1368 }; 1369 #define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1) 1370 1371 /** 1372 * enum nft_nat_types - nf_tables nat expression NAT types 1373 * 1374 * @NFT_NAT_SNAT: source NAT 1375 * @NFT_NAT_DNAT: destination NAT 1376 */ 1377 enum nft_nat_types { 1378 NFT_NAT_SNAT, 1379 NFT_NAT_DNAT, 1380 }; 1381 1382 /** 1383 * enum nft_nat_attributes - nf_tables nat expression netlink attributes 1384 * 1385 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types) 1386 * @NFTA_NAT_FAMILY: NAT family (NLA_U32) 1387 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers) 1388 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers) 1389 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1390 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1391 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1392 */ 1393 enum nft_nat_attributes { 1394 NFTA_NAT_UNSPEC, 1395 NFTA_NAT_TYPE, 1396 NFTA_NAT_FAMILY, 1397 NFTA_NAT_REG_ADDR_MIN, 1398 NFTA_NAT_REG_ADDR_MAX, 1399 NFTA_NAT_REG_PROTO_MIN, 1400 NFTA_NAT_REG_PROTO_MAX, 1401 NFTA_NAT_FLAGS, 1402 __NFTA_NAT_MAX 1403 }; 1404 #define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1) 1405 1406 /** 1407 * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes 1408 * 1409 * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers) 1410 * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers) 1411 * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers) 1412 */ 1413 enum nft_tproxy_attributes { 1414 NFTA_TPROXY_UNSPEC, 1415 NFTA_TPROXY_FAMILY, 1416 NFTA_TPROXY_REG_ADDR, 1417 NFTA_TPROXY_REG_PORT, 1418 __NFTA_TPROXY_MAX 1419 }; 1420 #define NFTA_TPROXY_MAX (__NFTA_TPROXY_MAX - 1) 1421 1422 /** 1423 * enum nft_masq_attributes - nf_tables masquerade expression attributes 1424 * 1425 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1426 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1427 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1428 */ 1429 enum nft_masq_attributes { 1430 NFTA_MASQ_UNSPEC, 1431 NFTA_MASQ_FLAGS, 1432 NFTA_MASQ_REG_PROTO_MIN, 1433 NFTA_MASQ_REG_PROTO_MAX, 1434 __NFTA_MASQ_MAX 1435 }; 1436 #define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1) 1437 1438 /** 1439 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes 1440 * 1441 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers) 1442 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers) 1443 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32) 1444 */ 1445 enum nft_redir_attributes { 1446 NFTA_REDIR_UNSPEC, 1447 NFTA_REDIR_REG_PROTO_MIN, 1448 NFTA_REDIR_REG_PROTO_MAX, 1449 NFTA_REDIR_FLAGS, 1450 __NFTA_REDIR_MAX 1451 }; 1452 #define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1) 1453 1454 /** 1455 * enum nft_dup_attributes - nf_tables dup expression netlink attributes 1456 * 1457 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers) 1458 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register) 1459 */ 1460 enum nft_dup_attributes { 1461 NFTA_DUP_UNSPEC, 1462 NFTA_DUP_SREG_ADDR, 1463 NFTA_DUP_SREG_DEV, 1464 __NFTA_DUP_MAX 1465 }; 1466 #define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1) 1467 1468 /** 1469 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes 1470 * 1471 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register) 1472 * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register) 1473 * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto) 1474 */ 1475 enum nft_fwd_attributes { 1476 NFTA_FWD_UNSPEC, 1477 NFTA_FWD_SREG_DEV, 1478 NFTA_FWD_SREG_ADDR, 1479 NFTA_FWD_NFPROTO, 1480 __NFTA_FWD_MAX 1481 }; 1482 #define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1) 1483 1484 /** 1485 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes 1486 * 1487 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register) 1488 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING) 1489 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers) 1490 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING) 1491 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32) 1492 */ 1493 enum nft_objref_attributes { 1494 NFTA_OBJREF_UNSPEC, 1495 NFTA_OBJREF_IMM_TYPE, 1496 NFTA_OBJREF_IMM_NAME, 1497 NFTA_OBJREF_SET_SREG, 1498 NFTA_OBJREF_SET_NAME, 1499 NFTA_OBJREF_SET_ID, 1500 __NFTA_OBJREF_MAX 1501 }; 1502 #define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1) 1503 1504 /** 1505 * enum nft_gen_attributes - nf_tables ruleset generation attributes 1506 * 1507 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32) 1508 */ 1509 enum nft_gen_attributes { 1510 NFTA_GEN_UNSPEC, 1511 NFTA_GEN_ID, 1512 NFTA_GEN_PROC_PID, 1513 NFTA_GEN_PROC_NAME, 1514 __NFTA_GEN_MAX 1515 }; 1516 #define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1) 1517 1518 /* 1519 * enum nft_fib_attributes - nf_tables fib expression netlink attributes 1520 * 1521 * @NFTA_FIB_DREG: destination register (NLA_U32) 1522 * @NFTA_FIB_RESULT: desired result (NLA_U32) 1523 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32) 1524 * 1525 * The FIB expression performs a route lookup according 1526 * to the packet data. 1527 */ 1528 enum nft_fib_attributes { 1529 NFTA_FIB_UNSPEC, 1530 NFTA_FIB_DREG, 1531 NFTA_FIB_RESULT, 1532 NFTA_FIB_FLAGS, 1533 __NFTA_FIB_MAX 1534 }; 1535 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1) 1536 1537 enum nft_fib_result { 1538 NFT_FIB_RESULT_UNSPEC, 1539 NFT_FIB_RESULT_OIF, 1540 NFT_FIB_RESULT_OIFNAME, 1541 NFT_FIB_RESULT_ADDRTYPE, 1542 __NFT_FIB_RESULT_MAX 1543 }; 1544 #define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1) 1545 1546 enum nft_fib_flags { 1547 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */ 1548 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */ 1549 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */ 1550 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */ 1551 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */ 1552 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */ 1553 }; 1554 1555 enum nft_ct_helper_attributes { 1556 NFTA_CT_HELPER_UNSPEC, 1557 NFTA_CT_HELPER_NAME, 1558 NFTA_CT_HELPER_L3PROTO, 1559 NFTA_CT_HELPER_L4PROTO, 1560 __NFTA_CT_HELPER_MAX, 1561 }; 1562 #define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1) 1563 1564 enum nft_ct_timeout_timeout_attributes { 1565 NFTA_CT_TIMEOUT_UNSPEC, 1566 NFTA_CT_TIMEOUT_L3PROTO, 1567 NFTA_CT_TIMEOUT_L4PROTO, 1568 NFTA_CT_TIMEOUT_DATA, 1569 __NFTA_CT_TIMEOUT_MAX, 1570 }; 1571 #define NFTA_CT_TIMEOUT_MAX (__NFTA_CT_TIMEOUT_MAX - 1) 1572 1573 enum nft_ct_expectation_attributes { 1574 NFTA_CT_EXPECT_UNSPEC, 1575 NFTA_CT_EXPECT_L3PROTO, 1576 NFTA_CT_EXPECT_L4PROTO, 1577 NFTA_CT_EXPECT_DPORT, 1578 NFTA_CT_EXPECT_TIMEOUT, 1579 NFTA_CT_EXPECT_SIZE, 1580 __NFTA_CT_EXPECT_MAX, 1581 }; 1582 #define NFTA_CT_EXPECT_MAX (__NFTA_CT_EXPECT_MAX - 1) 1583 1584 #define NFT_OBJECT_UNSPEC 0 1585 #define NFT_OBJECT_COUNTER 1 1586 #define NFT_OBJECT_QUOTA 2 1587 #define NFT_OBJECT_CT_HELPER 3 1588 #define NFT_OBJECT_LIMIT 4 1589 #define NFT_OBJECT_CONNLIMIT 5 1590 #define NFT_OBJECT_TUNNEL 6 1591 #define NFT_OBJECT_CT_TIMEOUT 7 1592 #define NFT_OBJECT_SECMARK 8 1593 #define NFT_OBJECT_CT_EXPECT 9 1594 #define NFT_OBJECT_SYNPROXY 10 1595 #define __NFT_OBJECT_MAX 11 1596 #define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1) 1597 1598 /** 1599 * enum nft_object_attributes - nf_tables stateful object netlink attributes 1600 * 1601 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING) 1602 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING) 1603 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32) 1604 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED) 1605 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32) 1606 * @NFTA_OBJ_HANDLE: object handle (NLA_U64) 1607 * @NFTA_OBJ_USERDATA: user data (NLA_BINARY) 1608 */ 1609 enum nft_object_attributes { 1610 NFTA_OBJ_UNSPEC, 1611 NFTA_OBJ_TABLE, 1612 NFTA_OBJ_NAME, 1613 NFTA_OBJ_TYPE, 1614 NFTA_OBJ_DATA, 1615 NFTA_OBJ_USE, 1616 NFTA_OBJ_HANDLE, 1617 NFTA_OBJ_PAD, 1618 NFTA_OBJ_USERDATA, 1619 __NFTA_OBJ_MAX 1620 }; 1621 #define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1) 1622 1623 /** 1624 * enum nft_flowtable_flags - nf_tables flowtable flags 1625 * 1626 * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled 1627 * @NFT_FLOWTABLE_COUNTER: enable flow counters 1628 */ 1629 enum nft_flowtable_flags { 1630 NFT_FLOWTABLE_HW_OFFLOAD = 0x1, 1631 NFT_FLOWTABLE_COUNTER = 0x2, 1632 NFT_FLOWTABLE_MASK = (NFT_FLOWTABLE_HW_OFFLOAD | 1633 NFT_FLOWTABLE_COUNTER) 1634 }; 1635 1636 /** 1637 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes 1638 * 1639 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING) 1640 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING) 1641 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32) 1642 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32) 1643 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64) 1644 * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32) 1645 */ 1646 enum nft_flowtable_attributes { 1647 NFTA_FLOWTABLE_UNSPEC, 1648 NFTA_FLOWTABLE_TABLE, 1649 NFTA_FLOWTABLE_NAME, 1650 NFTA_FLOWTABLE_HOOK, 1651 NFTA_FLOWTABLE_USE, 1652 NFTA_FLOWTABLE_HANDLE, 1653 NFTA_FLOWTABLE_PAD, 1654 NFTA_FLOWTABLE_FLAGS, 1655 __NFTA_FLOWTABLE_MAX 1656 }; 1657 #define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1) 1658 1659 /** 1660 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes 1661 * 1662 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32) 1663 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32) 1664 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED) 1665 */ 1666 enum nft_flowtable_hook_attributes { 1667 NFTA_FLOWTABLE_HOOK_UNSPEC, 1668 NFTA_FLOWTABLE_HOOK_NUM, 1669 NFTA_FLOWTABLE_HOOK_PRIORITY, 1670 NFTA_FLOWTABLE_HOOK_DEVS, 1671 __NFTA_FLOWTABLE_HOOK_MAX 1672 }; 1673 #define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1) 1674 1675 /** 1676 * enum nft_osf_attributes - nftables osf expression netlink attributes 1677 * 1678 * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers) 1679 * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8) 1680 * @NFTA_OSF_FLAGS: flags (NLA_U32) 1681 */ 1682 enum nft_osf_attributes { 1683 NFTA_OSF_UNSPEC, 1684 NFTA_OSF_DREG, 1685 NFTA_OSF_TTL, 1686 NFTA_OSF_FLAGS, 1687 __NFTA_OSF_MAX, 1688 }; 1689 #define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1) 1690 1691 enum nft_osf_flags { 1692 NFT_OSF_F_VERSION = (1 << 0), 1693 }; 1694 1695 /** 1696 * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes 1697 * 1698 * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16) 1699 * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8) 1700 * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32) 1701 */ 1702 enum nft_synproxy_attributes { 1703 NFTA_SYNPROXY_UNSPEC, 1704 NFTA_SYNPROXY_MSS, 1705 NFTA_SYNPROXY_WSCALE, 1706 NFTA_SYNPROXY_FLAGS, 1707 __NFTA_SYNPROXY_MAX, 1708 }; 1709 #define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1) 1710 1711 /** 1712 * enum nft_device_attributes - nf_tables device netlink attributes 1713 * 1714 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING) 1715 */ 1716 enum nft_devices_attributes { 1717 NFTA_DEVICE_UNSPEC, 1718 NFTA_DEVICE_NAME, 1719 __NFTA_DEVICE_MAX 1720 }; 1721 #define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1) 1722 1723 /* 1724 * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes 1725 * 1726 * @NFTA_XFRM_DREG: destination register (NLA_U32) 1727 * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32) 1728 * @NFTA_XFRM_DIR: direction (NLA_U8) 1729 * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32) 1730 */ 1731 enum nft_xfrm_attributes { 1732 NFTA_XFRM_UNSPEC, 1733 NFTA_XFRM_DREG, 1734 NFTA_XFRM_KEY, 1735 NFTA_XFRM_DIR, 1736 NFTA_XFRM_SPNUM, 1737 __NFTA_XFRM_MAX 1738 }; 1739 #define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1) 1740 1741 enum nft_xfrm_keys { 1742 NFT_XFRM_KEY_UNSPEC, 1743 NFT_XFRM_KEY_DADDR_IP4, 1744 NFT_XFRM_KEY_DADDR_IP6, 1745 NFT_XFRM_KEY_SADDR_IP4, 1746 NFT_XFRM_KEY_SADDR_IP6, 1747 NFT_XFRM_KEY_REQID, 1748 NFT_XFRM_KEY_SPI, 1749 __NFT_XFRM_KEY_MAX, 1750 }; 1751 #define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1) 1752 1753 /** 1754 * enum nft_trace_attributes - nf_tables trace netlink attributes 1755 * 1756 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING) 1757 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING) 1758 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64) 1759 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types) 1760 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts) 1761 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32) 1762 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY) 1763 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY) 1764 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY) 1765 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32) 1766 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16) 1767 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32) 1768 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16) 1769 * @NFTA_TRACE_MARK: nfmark (NLA_U32) 1770 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32) 1771 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32) 1772 */ 1773 enum nft_trace_attributes { 1774 NFTA_TRACE_UNSPEC, 1775 NFTA_TRACE_TABLE, 1776 NFTA_TRACE_CHAIN, 1777 NFTA_TRACE_RULE_HANDLE, 1778 NFTA_TRACE_TYPE, 1779 NFTA_TRACE_VERDICT, 1780 NFTA_TRACE_ID, 1781 NFTA_TRACE_LL_HEADER, 1782 NFTA_TRACE_NETWORK_HEADER, 1783 NFTA_TRACE_TRANSPORT_HEADER, 1784 NFTA_TRACE_IIF, 1785 NFTA_TRACE_IIFTYPE, 1786 NFTA_TRACE_OIF, 1787 NFTA_TRACE_OIFTYPE, 1788 NFTA_TRACE_MARK, 1789 NFTA_TRACE_NFPROTO, 1790 NFTA_TRACE_POLICY, 1791 NFTA_TRACE_PAD, 1792 __NFTA_TRACE_MAX 1793 }; 1794 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1) 1795 1796 enum nft_trace_types { 1797 NFT_TRACETYPE_UNSPEC, 1798 NFT_TRACETYPE_POLICY, 1799 NFT_TRACETYPE_RETURN, 1800 NFT_TRACETYPE_RULE, 1801 __NFT_TRACETYPE_MAX 1802 }; 1803 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1) 1804 1805 /** 1806 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes 1807 * 1808 * @NFTA_NG_DREG: destination register (NLA_U32) 1809 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32) 1810 * @NFTA_NG_TYPE: operation type (NLA_U32) 1811 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32) 1812 * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING) 1813 * @NFTA_NG_SET_ID: id of the map (NLA_U32) 1814 */ 1815 enum nft_ng_attributes { 1816 NFTA_NG_UNSPEC, 1817 NFTA_NG_DREG, 1818 NFTA_NG_MODULUS, 1819 NFTA_NG_TYPE, 1820 NFTA_NG_OFFSET, 1821 NFTA_NG_SET_NAME, /* deprecated */ 1822 NFTA_NG_SET_ID, /* deprecated */ 1823 __NFTA_NG_MAX 1824 }; 1825 #define NFTA_NG_MAX (__NFTA_NG_MAX - 1) 1826 1827 enum nft_ng_types { 1828 NFT_NG_INCREMENTAL, 1829 NFT_NG_RANDOM, 1830 __NFT_NG_MAX 1831 }; 1832 #define NFT_NG_MAX (__NFT_NG_MAX - 1) 1833 1834 enum nft_tunnel_key_ip_attributes { 1835 NFTA_TUNNEL_KEY_IP_UNSPEC, 1836 NFTA_TUNNEL_KEY_IP_SRC, 1837 NFTA_TUNNEL_KEY_IP_DST, 1838 __NFTA_TUNNEL_KEY_IP_MAX 1839 }; 1840 #define NFTA_TUNNEL_KEY_IP_MAX (__NFTA_TUNNEL_KEY_IP_MAX - 1) 1841 1842 enum nft_tunnel_ip6_attributes { 1843 NFTA_TUNNEL_KEY_IP6_UNSPEC, 1844 NFTA_TUNNEL_KEY_IP6_SRC, 1845 NFTA_TUNNEL_KEY_IP6_DST, 1846 NFTA_TUNNEL_KEY_IP6_FLOWLABEL, 1847 __NFTA_TUNNEL_KEY_IP6_MAX 1848 }; 1849 #define NFTA_TUNNEL_KEY_IP6_MAX (__NFTA_TUNNEL_KEY_IP6_MAX - 1) 1850 1851 enum nft_tunnel_opts_attributes { 1852 NFTA_TUNNEL_KEY_OPTS_UNSPEC, 1853 NFTA_TUNNEL_KEY_OPTS_VXLAN, 1854 NFTA_TUNNEL_KEY_OPTS_ERSPAN, 1855 NFTA_TUNNEL_KEY_OPTS_GENEVE, 1856 __NFTA_TUNNEL_KEY_OPTS_MAX 1857 }; 1858 #define NFTA_TUNNEL_KEY_OPTS_MAX (__NFTA_TUNNEL_KEY_OPTS_MAX - 1) 1859 1860 enum nft_tunnel_opts_vxlan_attributes { 1861 NFTA_TUNNEL_KEY_VXLAN_UNSPEC, 1862 NFTA_TUNNEL_KEY_VXLAN_GBP, 1863 __NFTA_TUNNEL_KEY_VXLAN_MAX 1864 }; 1865 #define NFTA_TUNNEL_KEY_VXLAN_MAX (__NFTA_TUNNEL_KEY_VXLAN_MAX - 1) 1866 1867 enum nft_tunnel_opts_erspan_attributes { 1868 NFTA_TUNNEL_KEY_ERSPAN_UNSPEC, 1869 NFTA_TUNNEL_KEY_ERSPAN_VERSION, 1870 NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX, 1871 NFTA_TUNNEL_KEY_ERSPAN_V2_HWID, 1872 NFTA_TUNNEL_KEY_ERSPAN_V2_DIR, 1873 __NFTA_TUNNEL_KEY_ERSPAN_MAX 1874 }; 1875 #define NFTA_TUNNEL_KEY_ERSPAN_MAX (__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1) 1876 1877 enum nft_tunnel_opts_geneve_attributes { 1878 NFTA_TUNNEL_KEY_GENEVE_UNSPEC, 1879 NFTA_TUNNEL_KEY_GENEVE_CLASS, 1880 NFTA_TUNNEL_KEY_GENEVE_TYPE, 1881 NFTA_TUNNEL_KEY_GENEVE_DATA, 1882 __NFTA_TUNNEL_KEY_GENEVE_MAX 1883 }; 1884 #define NFTA_TUNNEL_KEY_GENEVE_MAX (__NFTA_TUNNEL_KEY_GENEVE_MAX - 1) 1885 1886 enum nft_tunnel_flags { 1887 NFT_TUNNEL_F_ZERO_CSUM_TX = (1 << 0), 1888 NFT_TUNNEL_F_DONT_FRAGMENT = (1 << 1), 1889 NFT_TUNNEL_F_SEQ_NUMBER = (1 << 2), 1890 }; 1891 #define NFT_TUNNEL_F_MASK (NFT_TUNNEL_F_ZERO_CSUM_TX | \ 1892 NFT_TUNNEL_F_DONT_FRAGMENT | \ 1893 NFT_TUNNEL_F_SEQ_NUMBER) 1894 1895 enum nft_tunnel_key_attributes { 1896 NFTA_TUNNEL_KEY_UNSPEC, 1897 NFTA_TUNNEL_KEY_ID, 1898 NFTA_TUNNEL_KEY_IP, 1899 NFTA_TUNNEL_KEY_IP6, 1900 NFTA_TUNNEL_KEY_FLAGS, 1901 NFTA_TUNNEL_KEY_TOS, 1902 NFTA_TUNNEL_KEY_TTL, 1903 NFTA_TUNNEL_KEY_SPORT, 1904 NFTA_TUNNEL_KEY_DPORT, 1905 NFTA_TUNNEL_KEY_OPTS, 1906 __NFTA_TUNNEL_KEY_MAX 1907 }; 1908 #define NFTA_TUNNEL_KEY_MAX (__NFTA_TUNNEL_KEY_MAX - 1) 1909 1910 enum nft_tunnel_keys { 1911 NFT_TUNNEL_PATH, 1912 NFT_TUNNEL_ID, 1913 __NFT_TUNNEL_MAX 1914 }; 1915 #define NFT_TUNNEL_MAX (__NFT_TUNNEL_MAX - 1) 1916 1917 enum nft_tunnel_mode { 1918 NFT_TUNNEL_MODE_NONE, 1919 NFT_TUNNEL_MODE_RX, 1920 NFT_TUNNEL_MODE_TX, 1921 __NFT_TUNNEL_MODE_MAX 1922 }; 1923 #define NFT_TUNNEL_MODE_MAX (__NFT_TUNNEL_MODE_MAX - 1) 1924 1925 enum nft_tunnel_attributes { 1926 NFTA_TUNNEL_UNSPEC, 1927 NFTA_TUNNEL_KEY, 1928 NFTA_TUNNEL_DREG, 1929 NFTA_TUNNEL_MODE, 1930 __NFTA_TUNNEL_MAX 1931 }; 1932 #define NFTA_TUNNEL_MAX (__NFTA_TUNNEL_MAX - 1) 1933 1934 #endif /* _LINUX_NF_TABLES_H */ 1935