include/uapi/linux/netfilter/nf_tables.h

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