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