include/uapi/linux/netfilter/nf_tables.h

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