nf_tables.h 33.5 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
#ifndef _LINUX_NF_TABLES_H
#define _LINUX_NF_TABLES_H

#define NFT_TABLE_MAXNAMELEN	32
#define NFT_CHAIN_MAXNAMELEN	32
#define NFT_SET_MAXNAMELEN	32
#define NFT_USERDATA_MAXLEN	256

/**
 * enum nft_registers - nf_tables registers
 *
 * nf_tables used to have five registers: a verdict register and four data
 * registers of size 16. The data registers have been changed to 16 registers
 * of size 4. For compatibility reasons, the NFT_REG_[1-4] registers still
 * map to areas of size 16, the 4 byte registers are addressed using
 * NFT_REG32_00 - NFT_REG32_15.
 */
enum nft_registers {
	NFT_REG_VERDICT,
	NFT_REG_1,
	NFT_REG_2,
	NFT_REG_3,
	NFT_REG_4,
	__NFT_REG_MAX,

	NFT_REG32_00	= 8,
	NFT_REG32_01,
	NFT_REG32_02,
	NFT_REG32_03,
	NFT_REG32_04,
	NFT_REG32_05,
	NFT_REG32_06,
	NFT_REG32_07,
	NFT_REG32_08,
	NFT_REG32_09,
	NFT_REG32_10,
	NFT_REG32_11,
	NFT_REG32_12,
	NFT_REG32_13,
	NFT_REG32_14,
	NFT_REG32_15,
};
#define NFT_REG_MAX	(__NFT_REG_MAX - 1)

#define NFT_REG_SIZE	16
#define NFT_REG32_SIZE	4

/**
 * enum nft_verdicts - nf_tables internal verdicts
 *
 * @NFT_CONTINUE: continue evaluation of the current rule
 * @NFT_BREAK: terminate evaluation of the current rule
 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain
 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack
 * @NFT_RETURN: return to the topmost chain on the jump stack
 *
 * The nf_tables verdicts share their numeric space with the netfilter verdicts.
 */
enum nft_verdicts {
	NFT_CONTINUE	= -1,
	NFT_BREAK	= -2,
	NFT_JUMP	= -3,
	NFT_GOTO	= -4,
	NFT_RETURN	= -5,
};

/**
 * enum nf_tables_msg_types - nf_tables netlink message types
 *
 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes)
 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes)
 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes)
 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes)
 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes)
 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes)
 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes)
 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes)
 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes)
 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes)
 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes)
 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes)
 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes)
 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes)
 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes)
 * @NFT_MSG_NEWGEN: announce a new generation, only for events (enum nft_gen_attributes)
 * @NFT_MSG_GETGEN: get the rule-set generation (enum nft_gen_attributes)
 * @NFT_MSG_TRACE: trace event (enum nft_trace_attributes)
 */
enum nf_tables_msg_types {
	NFT_MSG_NEWTABLE,
	NFT_MSG_GETTABLE,
	NFT_MSG_DELTABLE,
	NFT_MSG_NEWCHAIN,
	NFT_MSG_GETCHAIN,
	NFT_MSG_DELCHAIN,
	NFT_MSG_NEWRULE,
	NFT_MSG_GETRULE,
	NFT_MSG_DELRULE,
	NFT_MSG_NEWSET,
	NFT_MSG_GETSET,
	NFT_MSG_DELSET,
	NFT_MSG_NEWSETELEM,
	NFT_MSG_GETSETELEM,
	NFT_MSG_DELSETELEM,
	NFT_MSG_NEWGEN,
	NFT_MSG_GETGEN,
	NFT_MSG_TRACE,
	NFT_MSG_MAX,
};

/**
 * enum nft_list_attributes - nf_tables generic list netlink attributes
 *
 * @NFTA_LIST_ELEM: list element (NLA_NESTED)
 */
enum nft_list_attributes {
	NFTA_LIST_UNPEC,
	NFTA_LIST_ELEM,
	__NFTA_LIST_MAX
};
#define NFTA_LIST_MAX		(__NFTA_LIST_MAX - 1)

/**
 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes
 *
 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
 * @NFTA_HOOK_DEV: netdevice name (NLA_STRING)
 */
enum nft_hook_attributes {
	NFTA_HOOK_UNSPEC,
	NFTA_HOOK_HOOKNUM,
	NFTA_HOOK_PRIORITY,
	NFTA_HOOK_DEV,
	__NFTA_HOOK_MAX
};
#define NFTA_HOOK_MAX		(__NFTA_HOOK_MAX - 1)

/**
 * enum nft_table_flags - nf_tables table flags
 *
 * @NFT_TABLE_F_DORMANT: this table is not active
 */
enum nft_table_flags {
	NFT_TABLE_F_DORMANT	= 0x1,
};

/**
 * enum nft_table_attributes - nf_tables table netlink attributes
 *
 * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32)
 */
enum nft_table_attributes {
	NFTA_TABLE_UNSPEC,
	NFTA_TABLE_NAME,
	NFTA_TABLE_FLAGS,
	NFTA_TABLE_USE,
	__NFTA_TABLE_MAX
};
#define NFTA_TABLE_MAX		(__NFTA_TABLE_MAX - 1)

/**
 * enum nft_chain_attributes - nf_tables chain netlink attributes
 *
 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
 */
enum nft_chain_attributes {
	NFTA_CHAIN_UNSPEC,
	NFTA_CHAIN_TABLE,
	NFTA_CHAIN_HANDLE,
	NFTA_CHAIN_NAME,
	NFTA_CHAIN_HOOK,
	NFTA_CHAIN_POLICY,
	NFTA_CHAIN_USE,
	NFTA_CHAIN_TYPE,
	NFTA_CHAIN_COUNTERS,
	NFTA_CHAIN_PAD,
	__NFTA_CHAIN_MAX
};
#define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)

/**
 * enum nft_rule_attributes - nf_tables rule netlink attributes
 *
 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
 */
enum nft_rule_attributes {
	NFTA_RULE_UNSPEC,
	NFTA_RULE_TABLE,
	NFTA_RULE_CHAIN,
	NFTA_RULE_HANDLE,
	NFTA_RULE_EXPRESSIONS,
	NFTA_RULE_COMPAT,
	NFTA_RULE_POSITION,
	NFTA_RULE_USERDATA,
	NFTA_RULE_PAD,
	__NFTA_RULE_MAX
};
#define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)

/**
 * enum nft_rule_compat_flags - nf_tables rule compat flags
 *
 * @NFT_RULE_COMPAT_F_INV: invert the check result
 */
enum nft_rule_compat_flags {
	NFT_RULE_COMPAT_F_INV	= (1 << 1),
	NFT_RULE_COMPAT_F_MASK	= NFT_RULE_COMPAT_F_INV,
};

/**
 * enum nft_rule_compat_attributes - nf_tables rule compat attributes
 *
 * @NFTA_RULE_COMPAT_PROTO: numerice value of handled protocol (NLA_U32)
 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
 */
enum nft_rule_compat_attributes {
	NFTA_RULE_COMPAT_UNSPEC,
	NFTA_RULE_COMPAT_PROTO,
	NFTA_RULE_COMPAT_FLAGS,
	__NFTA_RULE_COMPAT_MAX
};
#define NFTA_RULE_COMPAT_MAX	(__NFTA_RULE_COMPAT_MAX - 1)

/**
 * enum nft_set_flags - nf_tables set flags
 *
 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
 * @NFT_SET_CONSTANT: set contents may not change while bound
 * @NFT_SET_INTERVAL: set contains intervals
 * @NFT_SET_MAP: set is used as a dictionary
 * @NFT_SET_TIMEOUT: set uses timeouts
 * @NFT_SET_EVAL: set contains expressions for evaluation
 */
enum nft_set_flags {
	NFT_SET_ANONYMOUS		= 0x1,
	NFT_SET_CONSTANT		= 0x2,
	NFT_SET_INTERVAL		= 0x4,
	NFT_SET_MAP			= 0x8,
	NFT_SET_TIMEOUT			= 0x10,
	NFT_SET_EVAL			= 0x20,
};

/**
 * enum nft_set_policies - set selection policy
 *
 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
 */
enum nft_set_policies {
	NFT_SET_POL_PERFORMANCE,
	NFT_SET_POL_MEMORY,
};

/**
 * enum nft_set_desc_attributes - set element description
 *
 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
 */
enum nft_set_desc_attributes {
	NFTA_SET_DESC_UNSPEC,
	NFTA_SET_DESC_SIZE,
	__NFTA_SET_DESC_MAX
};
#define NFTA_SET_DESC_MAX	(__NFTA_SET_DESC_MAX - 1)

/**
 * enum nft_set_attributes - nf_tables set netlink attributes
 *
 * @NFTA_SET_TABLE: table name (NLA_STRING)
 * @NFTA_SET_NAME: set name (NLA_STRING)
 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
 * @NFTA_SET_POLICY: selection policy (NLA_U32)
 * @NFTA_SET_DESC: set description (NLA_NESTED)
 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
 * @NFTA_SET_USERDATA: user data (NLA_BINARY)
 */
enum nft_set_attributes {
	NFTA_SET_UNSPEC,
	NFTA_SET_TABLE,
	NFTA_SET_NAME,
	NFTA_SET_FLAGS,
	NFTA_SET_KEY_TYPE,
	NFTA_SET_KEY_LEN,
	NFTA_SET_DATA_TYPE,
	NFTA_SET_DATA_LEN,
	NFTA_SET_POLICY,
	NFTA_SET_DESC,
	NFTA_SET_ID,
	NFTA_SET_TIMEOUT,
	NFTA_SET_GC_INTERVAL,
	NFTA_SET_USERDATA,
	NFTA_SET_PAD,
	__NFTA_SET_MAX
};
#define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)

/**
 * enum nft_set_elem_flags - nf_tables set element flags
 *
 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
 */
enum nft_set_elem_flags {
	NFT_SET_ELEM_INTERVAL_END	= 0x1,
};

/**
 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
 *
 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
 */
enum nft_set_elem_attributes {
	NFTA_SET_ELEM_UNSPEC,
	NFTA_SET_ELEM_KEY,
	NFTA_SET_ELEM_DATA,
	NFTA_SET_ELEM_FLAGS,
	NFTA_SET_ELEM_TIMEOUT,
	NFTA_SET_ELEM_EXPIRATION,
	NFTA_SET_ELEM_USERDATA,
	NFTA_SET_ELEM_EXPR,
	NFTA_SET_ELEM_PAD,
	__NFTA_SET_ELEM_MAX
};
#define NFTA_SET_ELEM_MAX	(__NFTA_SET_ELEM_MAX - 1)

/**
 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
 *
 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
 */
enum nft_set_elem_list_attributes {
	NFTA_SET_ELEM_LIST_UNSPEC,
	NFTA_SET_ELEM_LIST_TABLE,
	NFTA_SET_ELEM_LIST_SET,
	NFTA_SET_ELEM_LIST_ELEMENTS,
	NFTA_SET_ELEM_LIST_SET_ID,
	__NFTA_SET_ELEM_LIST_MAX
};
#define NFTA_SET_ELEM_LIST_MAX	(__NFTA_SET_ELEM_LIST_MAX - 1)

/**
 * enum nft_data_types - nf_tables data types
 *
 * @NFT_DATA_VALUE: generic data
 * @NFT_DATA_VERDICT: netfilter verdict
 *
 * The type of data is usually determined by the kernel directly and is not
 * explicitly specified by userspace. The only difference are sets, where
 * userspace specifies the key and mapping data types.
 *
 * The values 0xffffff00-0xffffffff are reserved for internally used types.
 * The remaining range can be freely used by userspace to encode types, all
 * values are equivalent to NFT_DATA_VALUE.
 */
enum nft_data_types {
	NFT_DATA_VALUE,
	NFT_DATA_VERDICT	= 0xffffff00U,
};

#define NFT_DATA_RESERVED_MASK	0xffffff00U

/**
 * enum nft_data_attributes - nf_tables data netlink attributes
 *
 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
 */
enum nft_data_attributes {
	NFTA_DATA_UNSPEC,
	NFTA_DATA_VALUE,
	NFTA_DATA_VERDICT,
	__NFTA_DATA_MAX
};
#define NFTA_DATA_MAX		(__NFTA_DATA_MAX - 1)

/* Maximum length of a value */
#define NFT_DATA_VALUE_MAXLEN	64

/**
 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
 *
 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
 */
enum nft_verdict_attributes {
	NFTA_VERDICT_UNSPEC,
	NFTA_VERDICT_CODE,
	NFTA_VERDICT_CHAIN,
	__NFTA_VERDICT_MAX
};
#define NFTA_VERDICT_MAX	(__NFTA_VERDICT_MAX - 1)

/**
 * enum nft_expr_attributes - nf_tables expression netlink attributes
 *
 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
 */
enum nft_expr_attributes {
	NFTA_EXPR_UNSPEC,
	NFTA_EXPR_NAME,
	NFTA_EXPR_DATA,
	__NFTA_EXPR_MAX
};
#define NFTA_EXPR_MAX		(__NFTA_EXPR_MAX - 1)

/**
 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
 *
 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
 */
enum nft_immediate_attributes {
	NFTA_IMMEDIATE_UNSPEC,
	NFTA_IMMEDIATE_DREG,
	NFTA_IMMEDIATE_DATA,
	__NFTA_IMMEDIATE_MAX
};
#define NFTA_IMMEDIATE_MAX	(__NFTA_IMMEDIATE_MAX - 1)

/**
 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
 *
 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
 *
 * The bitwise expression performs the following operation:
 *
 * dreg = (sreg & mask) ^ xor
 *
 * which allow to express all bitwise operations:
 *
 * 		mask	xor
 * NOT:		1	1
 * OR:		0	x
 * XOR:		1	x
 * AND:		x	0
 */
enum nft_bitwise_attributes {
	NFTA_BITWISE_UNSPEC,
	NFTA_BITWISE_SREG,
	NFTA_BITWISE_DREG,
	NFTA_BITWISE_LEN,
	NFTA_BITWISE_MASK,
	NFTA_BITWISE_XOR,
	__NFTA_BITWISE_MAX
};
#define NFTA_BITWISE_MAX	(__NFTA_BITWISE_MAX - 1)

/**
 * enum nft_byteorder_ops - nf_tables byteorder operators
 *
 * @NFT_BYTEORDER_NTOH: network to host operator
 * @NFT_BYTEORDER_HTON: host to network opertaor
 */
enum nft_byteorder_ops {
	NFT_BYTEORDER_NTOH,
	NFT_BYTEORDER_HTON,
};

/**
 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
 *
 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
 */
enum nft_byteorder_attributes {
	NFTA_BYTEORDER_UNSPEC,
	NFTA_BYTEORDER_SREG,
	NFTA_BYTEORDER_DREG,
	NFTA_BYTEORDER_OP,
	NFTA_BYTEORDER_LEN,
	NFTA_BYTEORDER_SIZE,
	__NFTA_BYTEORDER_MAX
};
#define NFTA_BYTEORDER_MAX	(__NFTA_BYTEORDER_MAX - 1)

/**
 * enum nft_cmp_ops - nf_tables relational operator
 *
 * @NFT_CMP_EQ: equal
 * @NFT_CMP_NEQ: not equal
 * @NFT_CMP_LT: less than
 * @NFT_CMP_LTE: less than or equal to
 * @NFT_CMP_GT: greater than
 * @NFT_CMP_GTE: greater than or equal to
 */
enum nft_cmp_ops {
	NFT_CMP_EQ,
	NFT_CMP_NEQ,
	NFT_CMP_LT,
	NFT_CMP_LTE,
	NFT_CMP_GT,
	NFT_CMP_GTE,
};

/**
 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
 *
 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
 */
enum nft_cmp_attributes {
	NFTA_CMP_UNSPEC,
	NFTA_CMP_SREG,
	NFTA_CMP_OP,
	NFTA_CMP_DATA,
	__NFTA_CMP_MAX
};
#define NFTA_CMP_MAX		(__NFTA_CMP_MAX - 1)

/**
 * enum nft_range_ops - nf_tables range operator
 *
 * @NFT_RANGE_EQ: equal
 * @NFT_RANGE_NEQ: not equal
 */
enum nft_range_ops {
	NFT_RANGE_EQ,
	NFT_RANGE_NEQ,
};

/**
 * enum nft_range_attributes - nf_tables range expression netlink attributes
 *
 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops)
 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
 */
enum nft_range_attributes {
	NFTA_RANGE_UNSPEC,
	NFTA_RANGE_SREG,
	NFTA_RANGE_OP,
	NFTA_RANGE_FROM_DATA,
	NFTA_RANGE_TO_DATA,
	__NFTA_RANGE_MAX
};
#define NFTA_RANGE_MAX		(__NFTA_RANGE_MAX - 1)

enum nft_lookup_flags {
	NFT_LOOKUP_F_INV = (1 << 0),
};

/**
 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
 *
 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
 */
enum nft_lookup_attributes {
	NFTA_LOOKUP_UNSPEC,
	NFTA_LOOKUP_SET,
	NFTA_LOOKUP_SREG,
	NFTA_LOOKUP_DREG,
	NFTA_LOOKUP_SET_ID,
	NFTA_LOOKUP_FLAGS,
	__NFTA_LOOKUP_MAX
};
#define NFTA_LOOKUP_MAX		(__NFTA_LOOKUP_MAX - 1)

enum nft_dynset_ops {
	NFT_DYNSET_OP_ADD,
	NFT_DYNSET_OP_UPDATE,
};

enum nft_dynset_flags {
	NFT_DYNSET_F_INV	= (1 << 0),
};

/**
 * enum nft_dynset_attributes - dynset expression attributes
 *
 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
 * @NFTA_DYNSET_OP: operation (NLA_U32)
 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
 * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
 */
enum nft_dynset_attributes {
	NFTA_DYNSET_UNSPEC,
	NFTA_DYNSET_SET_NAME,
	NFTA_DYNSET_SET_ID,
	NFTA_DYNSET_OP,
	NFTA_DYNSET_SREG_KEY,
	NFTA_DYNSET_SREG_DATA,
	NFTA_DYNSET_TIMEOUT,
	NFTA_DYNSET_EXPR,
	NFTA_DYNSET_PAD,
	NFTA_DYNSET_FLAGS,
	__NFTA_DYNSET_MAX,
};
#define NFTA_DYNSET_MAX		(__NFTA_DYNSET_MAX - 1)

/**
 * enum nft_payload_bases - nf_tables payload expression offset bases
 *
 * @NFT_PAYLOAD_LL_HEADER: link layer header
 * @NFT_PAYLOAD_NETWORK_HEADER: network header
 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
 */
enum nft_payload_bases {
	NFT_PAYLOAD_LL_HEADER,
	NFT_PAYLOAD_NETWORK_HEADER,
	NFT_PAYLOAD_TRANSPORT_HEADER,
};

/**
 * enum nft_payload_csum_types - nf_tables payload expression checksum types
 *
 * @NFT_PAYLOAD_CSUM_NONE: no checksumming
 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
 */
enum nft_payload_csum_types {
	NFT_PAYLOAD_CSUM_NONE,
	NFT_PAYLOAD_CSUM_INET,
};

/**
 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
 *
 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
 */
enum nft_payload_attributes {
	NFTA_PAYLOAD_UNSPEC,
	NFTA_PAYLOAD_DREG,
	NFTA_PAYLOAD_BASE,
	NFTA_PAYLOAD_OFFSET,
	NFTA_PAYLOAD_LEN,
	NFTA_PAYLOAD_SREG,
	NFTA_PAYLOAD_CSUM_TYPE,
	NFTA_PAYLOAD_CSUM_OFFSET,
	__NFTA_PAYLOAD_MAX
};
#define NFTA_PAYLOAD_MAX	(__NFTA_PAYLOAD_MAX - 1)

/**
 * enum nft_exthdr_attributes - nf_tables IPv6 extension header expression netlink attributes
 *
 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
 */
enum nft_exthdr_attributes {
	NFTA_EXTHDR_UNSPEC,
	NFTA_EXTHDR_DREG,
	NFTA_EXTHDR_TYPE,
	NFTA_EXTHDR_OFFSET,
	NFTA_EXTHDR_LEN,
	__NFTA_EXTHDR_MAX
};
#define NFTA_EXTHDR_MAX		(__NFTA_EXTHDR_MAX - 1)

/**
 * enum nft_meta_keys - nf_tables meta expression keys
 *
 * @NFT_META_LEN: packet length (skb->len)
 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
 * @NFT_META_PRIORITY: packet priority (skb->priority)
 * @NFT_META_MARK: packet mark (skb->mark)
 * @NFT_META_IIF: packet input interface index (dev->ifindex)
 * @NFT_META_OIF: packet output interface index (dev->ifindex)
 * @NFT_META_IIFNAME: packet input interface name (dev->name)
 * @NFT_META_OIFNAME: packet output interface name (dev->name)
 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
 * @NFT_META_SKUID: originating socket UID (fsuid)
 * @NFT_META_SKGID: originating socket GID (fsgid)
 * @NFT_META_NFTRACE: packet nftrace bit
 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
 * @NFT_META_SECMARK: packet secmark (skb->secmark)
 * @NFT_META_NFPROTO: netfilter protocol
 * @NFT_META_L4PROTO: layer 4 protocol number
 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
 * @NFT_META_CPU: cpu id through smp_processor_id()
 * @NFT_META_IIFGROUP: packet input interface group
 * @NFT_META_OIFGROUP: packet output interface group
 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
 * @NFT_META_PRANDOM: a 32bit pseudo-random number
 */
enum nft_meta_keys {
	NFT_META_LEN,
	NFT_META_PROTOCOL,
	NFT_META_PRIORITY,
	NFT_META_MARK,
	NFT_META_IIF,
	NFT_META_OIF,
	NFT_META_IIFNAME,
	NFT_META_OIFNAME,
	NFT_META_IIFTYPE,
	NFT_META_OIFTYPE,
	NFT_META_SKUID,
	NFT_META_SKGID,
	NFT_META_NFTRACE,
	NFT_META_RTCLASSID,
	NFT_META_SECMARK,
	NFT_META_NFPROTO,
	NFT_META_L4PROTO,
	NFT_META_BRI_IIFNAME,
	NFT_META_BRI_OIFNAME,
	NFT_META_PKTTYPE,
	NFT_META_CPU,
	NFT_META_IIFGROUP,
	NFT_META_OIFGROUP,
	NFT_META_CGROUP,
	NFT_META_PRANDOM,
};

/**
 * enum nft_hash_attributes - nf_tables hash expression netlink attributes
 *
 * @NFTA_HASH_SREG: source register (NLA_U32)
 * @NFTA_HASH_DREG: destination register (NLA_U32)
 * @NFTA_HASH_LEN: source data length (NLA_U32)
 * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
 * @NFTA_HASH_SEED: seed value (NLA_U32)
 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
 */
enum nft_hash_attributes {
	NFTA_HASH_UNSPEC,
	NFTA_HASH_SREG,
	NFTA_HASH_DREG,
	NFTA_HASH_LEN,
	NFTA_HASH_MODULUS,
	NFTA_HASH_SEED,
	NFTA_HASH_OFFSET,
	__NFTA_HASH_MAX,
};
#define NFTA_HASH_MAX	(__NFTA_HASH_MAX - 1)

/**
 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
 *
 * @NFTA_META_DREG: destination register (NLA_U32)
 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
 * @NFTA_META_SREG: source register (NLA_U32)
 */
enum nft_meta_attributes {
	NFTA_META_UNSPEC,
	NFTA_META_DREG,
	NFTA_META_KEY,
	NFTA_META_SREG,
	__NFTA_META_MAX
};
#define NFTA_META_MAX		(__NFTA_META_MAX - 1)

/**
 * enum nft_ct_keys - nf_tables ct expression keys
 *
 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
 * @NFT_CT_MARK: conntrack mark value
 * @NFT_CT_SECMARK: conntrack secmark value
 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address)
 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address)
 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
 */
enum nft_ct_keys {
	NFT_CT_STATE,
	NFT_CT_DIRECTION,
	NFT_CT_STATUS,
	NFT_CT_MARK,
	NFT_CT_SECMARK,
	NFT_CT_EXPIRATION,
	NFT_CT_HELPER,
	NFT_CT_L3PROTOCOL,
	NFT_CT_SRC,
	NFT_CT_DST,
	NFT_CT_PROTOCOL,
	NFT_CT_PROTO_SRC,
	NFT_CT_PROTO_DST,
	NFT_CT_LABELS,
	NFT_CT_PKTS,
	NFT_CT_BYTES,
};

/**
 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
 *
 * @NFTA_CT_DREG: destination register (NLA_U32)
 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
 * @NFTA_CT_SREG: source register (NLA_U32)
 */
enum nft_ct_attributes {
	NFTA_CT_UNSPEC,
	NFTA_CT_DREG,
	NFTA_CT_KEY,
	NFTA_CT_DIRECTION,
	NFTA_CT_SREG,
	__NFTA_CT_MAX
};
#define NFTA_CT_MAX		(__NFTA_CT_MAX - 1)

enum nft_limit_type {
	NFT_LIMIT_PKTS,
	NFT_LIMIT_PKT_BYTES
};

enum nft_limit_flags {
	NFT_LIMIT_F_INV	= (1 << 0),
};

/**
 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
 *
 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
 * @NFTA_LIMIT_BURST: burst (NLA_U32)
 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
 */
enum nft_limit_attributes {
	NFTA_LIMIT_UNSPEC,
	NFTA_LIMIT_RATE,
	NFTA_LIMIT_UNIT,
	NFTA_LIMIT_BURST,
	NFTA_LIMIT_TYPE,
	NFTA_LIMIT_FLAGS,
	NFTA_LIMIT_PAD,
	__NFTA_LIMIT_MAX
};
#define NFTA_LIMIT_MAX		(__NFTA_LIMIT_MAX - 1)

/**
 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
 *
 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
 */
enum nft_counter_attributes {
	NFTA_COUNTER_UNSPEC,
	NFTA_COUNTER_BYTES,
	NFTA_COUNTER_PACKETS,
	NFTA_COUNTER_PAD,
	__NFTA_COUNTER_MAX
};
#define NFTA_COUNTER_MAX	(__NFTA_COUNTER_MAX - 1)

/**
 * enum nft_log_attributes - nf_tables log expression netlink attributes
 *
 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
 * @NFTA_LOG_LEVEL: log level (NLA_U32)
 * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
 */
enum nft_log_attributes {
	NFTA_LOG_UNSPEC,
	NFTA_LOG_GROUP,
	NFTA_LOG_PREFIX,
	NFTA_LOG_SNAPLEN,
	NFTA_LOG_QTHRESHOLD,
	NFTA_LOG_LEVEL,
	NFTA_LOG_FLAGS,
	__NFTA_LOG_MAX
};
#define NFTA_LOG_MAX		(__NFTA_LOG_MAX - 1)

/**
 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
 *
 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
 */
enum nft_queue_attributes {
	NFTA_QUEUE_UNSPEC,
	NFTA_QUEUE_NUM,
	NFTA_QUEUE_TOTAL,
	NFTA_QUEUE_FLAGS,
	NFTA_QUEUE_SREG_QNUM,
	__NFTA_QUEUE_MAX
};
#define NFTA_QUEUE_MAX		(__NFTA_QUEUE_MAX - 1)

#define NFT_QUEUE_FLAG_BYPASS		0x01 /* for compatibility with v2 */
#define NFT_QUEUE_FLAG_CPU_FANOUT	0x02 /* use current CPU (no hashing) */
#define NFT_QUEUE_FLAG_MASK		0x03

enum nft_quota_flags {
	NFT_QUOTA_F_INV		= (1 << 0),
};

/**
 * enum nft_quota_attributes - nf_tables quota expression netlink attributes
 *
 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
 * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
 */
enum nft_quota_attributes {
	NFTA_QUOTA_UNSPEC,
	NFTA_QUOTA_BYTES,
	NFTA_QUOTA_FLAGS,
	NFTA_QUOTA_PAD,
	__NFTA_QUOTA_MAX
};
#define NFTA_QUOTA_MAX		(__NFTA_QUOTA_MAX - 1)

/**
 * enum nft_reject_types - nf_tables reject expression reject types
 *
 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
 * @NFT_REJECT_TCP_RST: reject using TCP RST
 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
 */
enum nft_reject_types {
	NFT_REJECT_ICMP_UNREACH,
	NFT_REJECT_TCP_RST,
	NFT_REJECT_ICMPX_UNREACH,
};

/**
 * enum nft_reject_code - Generic reject codes for IPv4/IPv6
 *
 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
 *
 * These codes are mapped to real ICMP and ICMPv6 codes.
 */
enum nft_reject_inet_code {
	NFT_REJECT_ICMPX_NO_ROUTE	= 0,
	NFT_REJECT_ICMPX_PORT_UNREACH,
	NFT_REJECT_ICMPX_HOST_UNREACH,
	NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
	__NFT_REJECT_ICMPX_MAX
};
#define NFT_REJECT_ICMPX_MAX	(__NFT_REJECT_ICMPX_MAX - 1)

/**
 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
 *
 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
 */
enum nft_reject_attributes {
	NFTA_REJECT_UNSPEC,
	NFTA_REJECT_TYPE,
	NFTA_REJECT_ICMP_CODE,
	__NFTA_REJECT_MAX
};
#define NFTA_REJECT_MAX		(__NFTA_REJECT_MAX - 1)

/**
 * enum nft_nat_types - nf_tables nat expression NAT types
 *
 * @NFT_NAT_SNAT: source NAT
 * @NFT_NAT_DNAT: destination NAT
 */
enum nft_nat_types {
	NFT_NAT_SNAT,
	NFT_NAT_DNAT,
};

/**
 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
 *
 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
 */
enum nft_nat_attributes {
	NFTA_NAT_UNSPEC,
	NFTA_NAT_TYPE,
	NFTA_NAT_FAMILY,
	NFTA_NAT_REG_ADDR_MIN,
	NFTA_NAT_REG_ADDR_MAX,
	NFTA_NAT_REG_PROTO_MIN,
	NFTA_NAT_REG_PROTO_MAX,
	NFTA_NAT_FLAGS,
	__NFTA_NAT_MAX
};
#define NFTA_NAT_MAX		(__NFTA_NAT_MAX - 1)

/**
 * enum nft_masq_attributes - nf_tables masquerade expression attributes
 *
 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
 */
enum nft_masq_attributes {
	NFTA_MASQ_UNSPEC,
	NFTA_MASQ_FLAGS,
	NFTA_MASQ_REG_PROTO_MIN,
	NFTA_MASQ_REG_PROTO_MAX,
	__NFTA_MASQ_MAX
};
#define NFTA_MASQ_MAX		(__NFTA_MASQ_MAX - 1)

/**
 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
 *
 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
 */
enum nft_redir_attributes {
	NFTA_REDIR_UNSPEC,
	NFTA_REDIR_REG_PROTO_MIN,
	NFTA_REDIR_REG_PROTO_MAX,
	NFTA_REDIR_FLAGS,
	__NFTA_REDIR_MAX
};
#define NFTA_REDIR_MAX		(__NFTA_REDIR_MAX - 1)

/**
 * enum nft_dup_attributes - nf_tables dup expression netlink attributes
 *
 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
 */
enum nft_dup_attributes {
	NFTA_DUP_UNSPEC,
	NFTA_DUP_SREG_ADDR,
	NFTA_DUP_SREG_DEV,
	__NFTA_DUP_MAX
};
#define NFTA_DUP_MAX		(__NFTA_DUP_MAX - 1)

/**
 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
 *
 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
 */
enum nft_fwd_attributes {
	NFTA_FWD_UNSPEC,
	NFTA_FWD_SREG_DEV,
	__NFTA_FWD_MAX
};
#define NFTA_FWD_MAX	(__NFTA_FWD_MAX - 1)

/**
 * enum nft_gen_attributes - nf_tables ruleset generation attributes
 *
 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
 */
enum nft_gen_attributes {
	NFTA_GEN_UNSPEC,
	NFTA_GEN_ID,
	__NFTA_GEN_MAX
};
#define NFTA_GEN_MAX		(__NFTA_GEN_MAX - 1)

/**
 * enum nft_trace_attributes - nf_tables trace netlink attributes
 *
 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
 * @NFTA_TRACE_MARK: nfmark (NLA_U32)
 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
 */
enum nft_trace_attributes {
	NFTA_TRACE_UNSPEC,
	NFTA_TRACE_TABLE,
	NFTA_TRACE_CHAIN,
	NFTA_TRACE_RULE_HANDLE,
	NFTA_TRACE_TYPE,
	NFTA_TRACE_VERDICT,
	NFTA_TRACE_ID,
	NFTA_TRACE_LL_HEADER,
	NFTA_TRACE_NETWORK_HEADER,
	NFTA_TRACE_TRANSPORT_HEADER,
	NFTA_TRACE_IIF,
	NFTA_TRACE_IIFTYPE,
	NFTA_TRACE_OIF,
	NFTA_TRACE_OIFTYPE,
	NFTA_TRACE_MARK,
	NFTA_TRACE_NFPROTO,
	NFTA_TRACE_POLICY,
	NFTA_TRACE_PAD,
	__NFTA_TRACE_MAX
};
#define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)

enum nft_trace_types {
	NFT_TRACETYPE_UNSPEC,
	NFT_TRACETYPE_POLICY,
	NFT_TRACETYPE_RETURN,
	NFT_TRACETYPE_RULE,
	__NFT_TRACETYPE_MAX
};
#define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)

/**
 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
 *
 * @NFTA_NG_DREG: destination register (NLA_U32)
 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
 * @NFTA_NG_TYPE: operation type (NLA_U32)
 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
 */
enum nft_ng_attributes {
	NFTA_NG_UNSPEC,
	NFTA_NG_DREG,
	NFTA_NG_MODULUS,
	NFTA_NG_TYPE,
	NFTA_NG_OFFSET,
	__NFTA_NG_MAX
};
#define NFTA_NG_MAX	(__NFTA_NG_MAX - 1)

enum nft_ng_types {
	NFT_NG_INCREMENTAL,
	NFT_NG_RANDOM,
	__NFT_NG_MAX
};
#define NFT_NG_MAX	(__NFT_NG_MAX - 1)

#endif /* _LINUX_NF_TABLES_H */