1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _LINUX_NF_TABLES_H
3 #define _LINUX_NF_TABLES_H
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
14 * enum nft_registers - nf_tables registers
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.
47 #define NFT_REG_MAX (__NFT_REG_MAX - 1)
49 #define NFT_REG_SIZE 16
50 #define NFT_REG32_SIZE 4
51 #define NFT_REG32_COUNT (NFT_REG32_15 - NFT_REG32_00 + 1)
54 * enum nft_verdicts - nf_tables internal verdicts
56 * @NFT_CONTINUE: continue evaluation of the current rule
57 * @NFT_BREAK: terminate evaluation of the current rule
58 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain
59 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack
60 * @NFT_RETURN: return to the topmost chain on the jump stack
62 * The nf_tables verdicts share their numeric space with the netfilter verdicts.
73 * enum nf_tables_msg_types - nf_tables netlink message types
75 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes)
76 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes)
77 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes)
78 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes)
79 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes)
80 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes)
81 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes)
82 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes)
83 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes)
84 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes)
85 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes)
86 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes)
87 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes)
88 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes)
89 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes)
90 * @NFT_MSG_NEWGEN: announce a new generation, only for events (enum nft_gen_attributes)
91 * @NFT_MSG_GETGEN: get the rule-set generation (enum nft_gen_attributes)
92 * @NFT_MSG_TRACE: trace event (enum nft_trace_attributes)
93 * @NFT_MSG_NEWOBJ: create a stateful object (enum nft_obj_attributes)
94 * @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes)
95 * @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes)
96 * @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum nft_obj_attributes)
97 * @NFT_MSG_NEWFLOWTABLE: add new flow table (enum nft_flowtable_attributes)
98 * @NFT_MSG_GETFLOWTABLE: get flow table (enum nft_flowtable_attributes)
99 * @NFT_MSG_DELFLOWTABLE: delete flow table (enum nft_flowtable_attributes)
101 enum nf_tables_msg_types {
123 NFT_MSG_GETOBJ_RESET,
124 NFT_MSG_NEWFLOWTABLE,
125 NFT_MSG_GETFLOWTABLE,
126 NFT_MSG_DELFLOWTABLE,
131 * enum nft_list_attributes - nf_tables generic list netlink attributes
133 * @NFTA_LIST_ELEM: list element (NLA_NESTED)
135 enum nft_list_attributes {
140 #define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1)
143 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes
145 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
146 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
147 * @NFTA_HOOK_DEV: netdevice name (NLA_STRING)
148 * @NFTA_HOOK_DEVS: list of netdevices (NLA_NESTED)
150 enum nft_hook_attributes {
158 #define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1)
161 * enum nft_table_flags - nf_tables table flags
163 * @NFT_TABLE_F_DORMANT: this table is not active
165 enum nft_table_flags {
166 NFT_TABLE_F_DORMANT = 0x1,
170 * enum nft_table_attributes - nf_tables table netlink attributes
172 * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
173 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
174 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32)
175 * @NFTA_TABLE_USERDATA: user data (NLA_BINARY)
177 enum nft_table_attributes {
187 #define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1)
189 enum nft_chain_flags {
190 NFT_CHAIN_BASE = (1 << 0),
191 NFT_CHAIN_HW_OFFLOAD = (1 << 1),
192 NFT_CHAIN_BINDING = (1 << 2),
194 #define NFT_CHAIN_FLAGS (NFT_CHAIN_BASE | \
195 NFT_CHAIN_HW_OFFLOAD | \
199 * enum nft_chain_attributes - nf_tables chain netlink attributes
201 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
202 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
203 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
204 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
205 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
206 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
207 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
208 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
209 * @NFTA_CHAIN_FLAGS: chain flags
210 * @NFTA_CHAIN_ID: uniquely identifies a chain in a transaction (NLA_U32)
211 * @NFTA_CHAIN_USERDATA: user data (NLA_BINARY)
213 enum nft_chain_attributes {
229 #define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1)
232 * enum nft_rule_attributes - nf_tables rule netlink attributes
234 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
235 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
236 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
237 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
238 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
239 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
240 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
241 * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32)
242 * @NFTA_RULE_POSITION_ID: transaction unique identifier of the previous rule (NLA_U32)
244 enum nft_rule_attributes {
249 NFTA_RULE_EXPRESSIONS,
255 NFTA_RULE_POSITION_ID,
259 #define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1)
262 * enum nft_rule_compat_flags - nf_tables rule compat flags
264 * @NFT_RULE_COMPAT_F_INV: invert the check result
266 enum nft_rule_compat_flags {
267 NFT_RULE_COMPAT_F_INV = (1 << 1),
268 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV,
272 * enum nft_rule_compat_attributes - nf_tables rule compat attributes
274 * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32)
275 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
277 enum nft_rule_compat_attributes {
278 NFTA_RULE_COMPAT_UNSPEC,
279 NFTA_RULE_COMPAT_PROTO,
280 NFTA_RULE_COMPAT_FLAGS,
281 __NFTA_RULE_COMPAT_MAX
283 #define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1)
286 * enum nft_set_flags - nf_tables set flags
288 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
289 * @NFT_SET_CONSTANT: set contents may not change while bound
290 * @NFT_SET_INTERVAL: set contains intervals
291 * @NFT_SET_MAP: set is used as a dictionary
292 * @NFT_SET_TIMEOUT: set uses timeouts
293 * @NFT_SET_EVAL: set can be updated from the evaluation path
294 * @NFT_SET_OBJECT: set contains stateful objects
295 * @NFT_SET_CONCAT: set contains a concatenation
298 NFT_SET_ANONYMOUS = 0x1,
299 NFT_SET_CONSTANT = 0x2,
300 NFT_SET_INTERVAL = 0x4,
302 NFT_SET_TIMEOUT = 0x10,
304 NFT_SET_OBJECT = 0x40,
305 NFT_SET_CONCAT = 0x80,
309 * enum nft_set_policies - set selection policy
311 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
312 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
314 enum nft_set_policies {
315 NFT_SET_POL_PERFORMANCE,
320 * enum nft_set_desc_attributes - set element description
322 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
323 * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED)
325 enum nft_set_desc_attributes {
326 NFTA_SET_DESC_UNSPEC,
328 NFTA_SET_DESC_CONCAT,
331 #define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1)
334 * enum nft_set_field_attributes - attributes of concatenated fields
336 * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32)
338 enum nft_set_field_attributes {
339 NFTA_SET_FIELD_UNSPEC,
343 #define NFTA_SET_FIELD_MAX (__NFTA_SET_FIELD_MAX - 1)
346 * enum nft_set_attributes - nf_tables set netlink attributes
348 * @NFTA_SET_TABLE: table name (NLA_STRING)
349 * @NFTA_SET_NAME: set name (NLA_STRING)
350 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
351 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
352 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
353 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
354 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
355 * @NFTA_SET_POLICY: selection policy (NLA_U32)
356 * @NFTA_SET_DESC: set description (NLA_NESTED)
357 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
358 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
359 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
360 * @NFTA_SET_USERDATA: user data (NLA_BINARY)
361 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*)
362 * @NFTA_SET_HANDLE: set handle (NLA_U64)
363 * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes)
365 enum nft_set_attributes {
378 NFTA_SET_GC_INTERVAL,
386 #define NFTA_SET_MAX (__NFTA_SET_MAX - 1)
389 * enum nft_set_elem_flags - nf_tables set element flags
391 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
393 enum nft_set_elem_flags {
394 NFT_SET_ELEM_INTERVAL_END = 0x1,
398 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
400 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
401 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
402 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
403 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
404 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
405 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
406 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
407 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING)
408 * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data)
410 enum nft_set_elem_attributes {
411 NFTA_SET_ELEM_UNSPEC,
415 NFTA_SET_ELEM_TIMEOUT,
416 NFTA_SET_ELEM_EXPIRATION,
417 NFTA_SET_ELEM_USERDATA,
420 NFTA_SET_ELEM_OBJREF,
421 NFTA_SET_ELEM_KEY_END,
424 #define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
427 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
429 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
430 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
431 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
432 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
434 enum nft_set_elem_list_attributes {
435 NFTA_SET_ELEM_LIST_UNSPEC,
436 NFTA_SET_ELEM_LIST_TABLE,
437 NFTA_SET_ELEM_LIST_SET,
438 NFTA_SET_ELEM_LIST_ELEMENTS,
439 NFTA_SET_ELEM_LIST_SET_ID,
440 __NFTA_SET_ELEM_LIST_MAX
442 #define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1)
445 * enum nft_data_types - nf_tables data types
447 * @NFT_DATA_VALUE: generic data
448 * @NFT_DATA_VERDICT: netfilter verdict
450 * The type of data is usually determined by the kernel directly and is not
451 * explicitly specified by userspace. The only difference are sets, where
452 * userspace specifies the key and mapping data types.
454 * The values 0xffffff00-0xffffffff are reserved for internally used types.
455 * The remaining range can be freely used by userspace to encode types, all
456 * values are equivalent to NFT_DATA_VALUE.
458 enum nft_data_types {
460 NFT_DATA_VERDICT = 0xffffff00U,
463 #define NFT_DATA_RESERVED_MASK 0xffffff00U
466 * enum nft_data_attributes - nf_tables data netlink attributes
468 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
469 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
471 enum nft_data_attributes {
477 #define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1)
479 /* Maximum length of a value */
480 #define NFT_DATA_VALUE_MAXLEN 64
483 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
485 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
486 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
487 * @NFTA_VERDICT_CHAIN_ID: jump target chain ID (NLA_U32)
489 enum nft_verdict_attributes {
493 NFTA_VERDICT_CHAIN_ID,
496 #define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1)
499 * enum nft_expr_attributes - nf_tables expression netlink attributes
501 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
502 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
504 enum nft_expr_attributes {
510 #define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1)
513 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
515 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
516 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
518 enum nft_immediate_attributes {
519 NFTA_IMMEDIATE_UNSPEC,
524 #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1)
527 * enum nft_bitwise_ops - nf_tables bitwise operations
529 * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and
530 * XOR boolean operations
531 * @NFT_BITWISE_LSHIFT: left-shift operation
532 * @NFT_BITWISE_RSHIFT: right-shift operation
534 enum nft_bitwise_ops {
541 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
543 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
544 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
545 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
546 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
547 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
548 * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops)
549 * @NFTA_BITWISE_DATA: argument for non-boolean operations
550 * (NLA_NESTED: nft_data_attributes)
552 * The bitwise expression supports boolean and shift operations. It implements
553 * the boolean operations by performing the following operation:
555 * dreg = (sreg & mask) ^ xor
557 * with these mask and xor values:
565 enum nft_bitwise_attributes {
576 #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)
579 * enum nft_byteorder_ops - nf_tables byteorder operators
581 * @NFT_BYTEORDER_NTOH: network to host operator
582 * @NFT_BYTEORDER_HTON: host to network operator
584 enum nft_byteorder_ops {
590 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
592 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
593 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
594 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
595 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
596 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
598 enum nft_byteorder_attributes {
599 NFTA_BYTEORDER_UNSPEC,
607 #define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1)
610 * enum nft_cmp_ops - nf_tables relational operator
613 * @NFT_CMP_NEQ: not equal
614 * @NFT_CMP_LT: less than
615 * @NFT_CMP_LTE: less than or equal to
616 * @NFT_CMP_GT: greater than
617 * @NFT_CMP_GTE: greater than or equal to
629 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
631 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
632 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
633 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
635 enum nft_cmp_attributes {
642 #define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
645 * enum nft_range_ops - nf_tables range operator
647 * @NFT_RANGE_EQ: equal
648 * @NFT_RANGE_NEQ: not equal
656 * enum nft_range_attributes - nf_tables range expression netlink attributes
658 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
659 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops)
660 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
661 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
663 enum nft_range_attributes {
667 NFTA_RANGE_FROM_DATA,
671 #define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1)
673 enum nft_lookup_flags {
674 NFT_LOOKUP_F_INV = (1 << 0),
678 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
680 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
681 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
682 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
683 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
684 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
686 enum nft_lookup_attributes {
695 #define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1)
697 enum nft_dynset_ops {
699 NFT_DYNSET_OP_UPDATE,
700 NFT_DYNSET_OP_DELETE,
703 enum nft_dynset_flags {
704 NFT_DYNSET_F_INV = (1 << 0),
708 * enum nft_dynset_attributes - dynset expression attributes
710 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
711 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
712 * @NFTA_DYNSET_OP: operation (NLA_U32)
713 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
714 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
715 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
716 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
717 * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
719 enum nft_dynset_attributes {
721 NFTA_DYNSET_SET_NAME,
724 NFTA_DYNSET_SREG_KEY,
725 NFTA_DYNSET_SREG_DATA,
732 #define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1)
735 * enum nft_payload_bases - nf_tables payload expression offset bases
737 * @NFT_PAYLOAD_LL_HEADER: link layer header
738 * @NFT_PAYLOAD_NETWORK_HEADER: network header
739 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
741 enum nft_payload_bases {
742 NFT_PAYLOAD_LL_HEADER,
743 NFT_PAYLOAD_NETWORK_HEADER,
744 NFT_PAYLOAD_TRANSPORT_HEADER,
748 * enum nft_payload_csum_types - nf_tables payload expression checksum types
750 * @NFT_PAYLOAD_CSUM_NONE: no checksumming
751 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
752 * @NFT_PAYLOAD_CSUM_SCTP: CRC-32c, for use in SCTP header (RFC 3309)
754 enum nft_payload_csum_types {
755 NFT_PAYLOAD_CSUM_NONE,
756 NFT_PAYLOAD_CSUM_INET,
757 NFT_PAYLOAD_CSUM_SCTP,
760 enum nft_payload_csum_flags {
761 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
765 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
767 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
768 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
769 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
770 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
771 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
772 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
773 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
774 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32)
776 enum nft_payload_attributes {
783 NFTA_PAYLOAD_CSUM_TYPE,
784 NFTA_PAYLOAD_CSUM_OFFSET,
785 NFTA_PAYLOAD_CSUM_FLAGS,
788 #define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1)
790 enum nft_exthdr_flags {
791 NFT_EXTHDR_F_PRESENT = (1 << 0),
795 * enum nft_exthdr_op - nf_tables match options
797 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers
798 * @NFT_EXTHDR_OP_TCP: match against tcp options
799 * @NFT_EXTHDR_OP_IPV4: match against ipv4 options
803 NFT_EXTHDR_OP_TCPOPT,
807 #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1)
810 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes
812 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
813 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
814 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
815 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
816 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32)
817 * @NFTA_EXTHDR_OP: option match type (NLA_U32)
818 * @NFTA_EXTHDR_SREG: option match type (NLA_U32)
820 enum nft_exthdr_attributes {
831 #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1)
834 * enum nft_meta_keys - nf_tables meta expression keys
836 * @NFT_META_LEN: packet length (skb->len)
837 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
838 * @NFT_META_PRIORITY: packet priority (skb->priority)
839 * @NFT_META_MARK: packet mark (skb->mark)
840 * @NFT_META_IIF: packet input interface index (dev->ifindex)
841 * @NFT_META_OIF: packet output interface index (dev->ifindex)
842 * @NFT_META_IIFNAME: packet input interface name (dev->name)
843 * @NFT_META_OIFNAME: packet output interface name (dev->name)
844 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
845 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
846 * @NFT_META_SKUID: originating socket UID (fsuid)
847 * @NFT_META_SKGID: originating socket GID (fsgid)
848 * @NFT_META_NFTRACE: packet nftrace bit
849 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
850 * @NFT_META_SECMARK: packet secmark (skb->secmark)
851 * @NFT_META_NFPROTO: netfilter protocol
852 * @NFT_META_L4PROTO: layer 4 protocol number
853 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
854 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
855 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
856 * @NFT_META_CPU: cpu id through smp_processor_id()
857 * @NFT_META_IIFGROUP: packet input interface group
858 * @NFT_META_OIFGROUP: packet output interface group
859 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
860 * @NFT_META_PRANDOM: a 32bit pseudo-random number
861 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
862 * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind)
863 * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind)
864 * @NFT_META_BRI_IIFPVID: packet input bridge port pvid
865 * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto
866 * @NFT_META_TIME_NS: time since epoch (in nanoseconds)
867 * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday)
868 * @NFT_META_TIME_HOUR: hour of day (in seconds)
869 * @NFT_META_SDIF: slave device interface index
870 * @NFT_META_SDIFNAME: slave device interface name
890 NFT_META_BRI_IIFNAME,
891 NFT_META_BRI_OIFNAME,
901 NFT_META_BRI_IIFPVID,
902 NFT_META_BRI_IIFVPROTO,
911 * enum nft_rt_keys - nf_tables routing expression keys
913 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid)
914 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4
915 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6
916 * @NFT_RT_TCPMSS: fetch current path tcp mss
917 * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL
927 #define NFT_RT_MAX (__NFT_RT_MAX - 1)
930 * enum nft_hash_types - nf_tables hash expression types
932 * @NFT_HASH_JENKINS: Jenkins Hash
933 * @NFT_HASH_SYM: Symmetric Hash
935 enum nft_hash_types {
941 * enum nft_hash_attributes - nf_tables hash expression netlink attributes
943 * @NFTA_HASH_SREG: source register (NLA_U32)
944 * @NFTA_HASH_DREG: destination register (NLA_U32)
945 * @NFTA_HASH_LEN: source data length (NLA_U32)
946 * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
947 * @NFTA_HASH_SEED: seed value (NLA_U32)
948 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
949 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types)
950 * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING)
951 * @NFTA_HASH_SET_ID: id of the map (NLA_U32)
953 enum nft_hash_attributes {
962 NFTA_HASH_SET_NAME, /* deprecated */
963 NFTA_HASH_SET_ID, /* deprecated */
966 #define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1)
969 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
971 * @NFTA_META_DREG: destination register (NLA_U32)
972 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
973 * @NFTA_META_SREG: source register (NLA_U32)
975 enum nft_meta_attributes {
982 #define NFTA_META_MAX (__NFTA_META_MAX - 1)
985 * enum nft_rt_attributes - nf_tables routing expression netlink attributes
987 * @NFTA_RT_DREG: destination register (NLA_U32)
988 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys)
990 enum nft_rt_attributes {
996 #define NFTA_RT_MAX (__NFTA_RT_MAX - 1)
999 * enum nft_socket_attributes - nf_tables socket expression netlink attributes
1001 * @NFTA_SOCKET_KEY: socket key to match
1002 * @NFTA_SOCKET_DREG: destination register
1004 enum nft_socket_attributes {
1010 #define NFTA_SOCKET_MAX (__NFTA_SOCKET_MAX - 1)
1013 * enum nft_socket_keys - nf_tables socket expression keys
1015 * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option
1016 * @NFT_SOCKET_MARK: Value of the socket mark
1017 * @NFT_SOCKET_WILDCARD: Whether the socket is zero-bound (e.g. 0.0.0.0 or ::0)
1019 enum nft_socket_keys {
1020 NFT_SOCKET_TRANSPARENT,
1022 NFT_SOCKET_WILDCARD,
1025 #define NFT_SOCKET_MAX (__NFT_SOCKET_MAX - 1)
1028 * enum nft_ct_keys - nf_tables ct expression keys
1030 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
1031 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
1032 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
1033 * @NFT_CT_MARK: conntrack mark value
1034 * @NFT_CT_SECMARK: conntrack secmark value
1035 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
1036 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
1037 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
1038 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated)
1039 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated)
1040 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
1041 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
1042 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
1043 * @NFT_CT_LABELS: conntrack labels
1044 * @NFT_CT_PKTS: conntrack packets
1045 * @NFT_CT_BYTES: conntrack bytes
1046 * @NFT_CT_AVGPKT: conntrack average bytes per packet
1047 * @NFT_CT_ZONE: conntrack zone
1048 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack
1049 * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address)
1050 * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address)
1051 * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address)
1052 * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address)
1053 * @NFT_CT_ID: conntrack id
1082 #define NFT_CT_MAX (__NFT_CT_MAX - 1)
1085 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
1087 * @NFTA_CT_DREG: destination register (NLA_U32)
1088 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
1089 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
1090 * @NFTA_CT_SREG: source register (NLA_U32)
1092 enum nft_ct_attributes {
1100 #define NFTA_CT_MAX (__NFTA_CT_MAX - 1)
1103 * enum nft_flow_attributes - ct offload expression attributes
1104 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
1106 enum nft_offload_attributes {
1108 NFTA_FLOW_TABLE_NAME,
1111 #define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1)
1113 enum nft_limit_type {
1118 enum nft_limit_flags {
1119 NFT_LIMIT_F_INV = (1 << 0),
1123 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
1125 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
1126 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
1127 * @NFTA_LIMIT_BURST: burst (NLA_U32)
1128 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
1129 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
1131 enum nft_limit_attributes {
1141 #define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1)
1143 enum nft_connlimit_flags {
1144 NFT_CONNLIMIT_F_INV = (1 << 0),
1148 * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes
1150 * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32)
1151 * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags)
1153 enum nft_connlimit_attributes {
1154 NFTA_CONNLIMIT_UNSPEC,
1155 NFTA_CONNLIMIT_COUNT,
1156 NFTA_CONNLIMIT_FLAGS,
1157 __NFTA_CONNLIMIT_MAX
1159 #define NFTA_CONNLIMIT_MAX (__NFTA_CONNLIMIT_MAX - 1)
1162 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
1164 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
1165 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
1167 enum nft_counter_attributes {
1168 NFTA_COUNTER_UNSPEC,
1170 NFTA_COUNTER_PACKETS,
1174 #define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1)
1177 * enum nft_log_attributes - nf_tables log expression netlink attributes
1179 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
1180 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
1181 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
1182 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
1183 * @NFTA_LOG_LEVEL: log level (NLA_U32)
1184 * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
1186 enum nft_log_attributes {
1191 NFTA_LOG_QTHRESHOLD,
1196 #define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1)
1199 * enum nft_log_level - nf_tables log levels
1201 * @NFT_LOGLEVEL_EMERG: system is unusable
1202 * @NFT_LOGLEVEL_ALERT: action must be taken immediately
1203 * @NFT_LOGLEVEL_CRIT: critical conditions
1204 * @NFT_LOGLEVEL_ERR: error conditions
1205 * @NFT_LOGLEVEL_WARNING: warning conditions
1206 * @NFT_LOGLEVEL_NOTICE: normal but significant condition
1207 * @NFT_LOGLEVEL_INFO: informational
1208 * @NFT_LOGLEVEL_DEBUG: debug-level messages
1209 * @NFT_LOGLEVEL_AUDIT: enabling audit logging
1211 enum nft_log_level {
1216 NFT_LOGLEVEL_WARNING,
1217 NFT_LOGLEVEL_NOTICE,
1223 #define NFT_LOGLEVEL_MAX (__NFT_LOGLEVEL_MAX - 1)
1226 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
1228 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
1229 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
1230 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
1231 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
1233 enum nft_queue_attributes {
1238 NFTA_QUEUE_SREG_QNUM,
1241 #define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1)
1243 #define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */
1244 #define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */
1245 #define NFT_QUEUE_FLAG_MASK 0x03
1247 enum nft_quota_flags {
1248 NFT_QUOTA_F_INV = (1 << 0),
1249 NFT_QUOTA_F_DEPLETED = (1 << 1),
1253 * enum nft_quota_attributes - nf_tables quota expression netlink attributes
1255 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
1256 * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
1257 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
1259 enum nft_quota_attributes {
1264 NFTA_QUOTA_CONSUMED,
1267 #define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1)
1270 * enum nft_secmark_attributes - nf_tables secmark object netlink attributes
1272 * @NFTA_SECMARK_CTX: security context (NLA_STRING)
1274 enum nft_secmark_attributes {
1275 NFTA_SECMARK_UNSPEC,
1279 #define NFTA_SECMARK_MAX (__NFTA_SECMARK_MAX - 1)
1281 /* Max security context length */
1282 #define NFT_SECMARK_CTX_MAXLEN 256
1285 * enum nft_reject_types - nf_tables reject expression reject types
1287 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
1288 * @NFT_REJECT_TCP_RST: reject using TCP RST
1289 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
1291 enum nft_reject_types {
1292 NFT_REJECT_ICMP_UNREACH,
1294 NFT_REJECT_ICMPX_UNREACH,
1298 * enum nft_reject_code - Generic reject codes for IPv4/IPv6
1300 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
1301 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
1302 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
1303 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
1305 * These codes are mapped to real ICMP and ICMPv6 codes.
1307 enum nft_reject_inet_code {
1308 NFT_REJECT_ICMPX_NO_ROUTE = 0,
1309 NFT_REJECT_ICMPX_PORT_UNREACH,
1310 NFT_REJECT_ICMPX_HOST_UNREACH,
1311 NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
1312 __NFT_REJECT_ICMPX_MAX
1314 #define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
1317 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
1319 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
1320 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
1322 enum nft_reject_attributes {
1325 NFTA_REJECT_ICMP_CODE,
1328 #define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1)
1331 * enum nft_nat_types - nf_tables nat expression NAT types
1333 * @NFT_NAT_SNAT: source NAT
1334 * @NFT_NAT_DNAT: destination NAT
1336 enum nft_nat_types {
1342 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
1344 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
1345 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
1346 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
1347 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
1348 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1349 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1350 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1352 enum nft_nat_attributes {
1356 NFTA_NAT_REG_ADDR_MIN,
1357 NFTA_NAT_REG_ADDR_MAX,
1358 NFTA_NAT_REG_PROTO_MIN,
1359 NFTA_NAT_REG_PROTO_MAX,
1363 #define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
1366 * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes
1368 * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers)
1369 * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers)
1370 * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers)
1372 enum nft_tproxy_attributes {
1375 NFTA_TPROXY_REG_ADDR,
1376 NFTA_TPROXY_REG_PORT,
1379 #define NFTA_TPROXY_MAX (__NFTA_TPROXY_MAX - 1)
1382 * enum nft_masq_attributes - nf_tables masquerade expression attributes
1384 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1385 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1386 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1388 enum nft_masq_attributes {
1391 NFTA_MASQ_REG_PROTO_MIN,
1392 NFTA_MASQ_REG_PROTO_MAX,
1395 #define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
1398 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
1400 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1401 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1402 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1404 enum nft_redir_attributes {
1406 NFTA_REDIR_REG_PROTO_MIN,
1407 NFTA_REDIR_REG_PROTO_MAX,
1411 #define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1)
1414 * enum nft_dup_attributes - nf_tables dup expression netlink attributes
1416 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
1417 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1419 enum nft_dup_attributes {
1425 #define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1)
1428 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
1430 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1431 * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register)
1432 * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto)
1434 enum nft_fwd_attributes {
1441 #define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1)
1444 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes
1446 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register)
1447 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING)
1448 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers)
1449 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING)
1450 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32)
1452 enum nft_objref_attributes {
1454 NFTA_OBJREF_IMM_TYPE,
1455 NFTA_OBJREF_IMM_NAME,
1456 NFTA_OBJREF_SET_SREG,
1457 NFTA_OBJREF_SET_NAME,
1461 #define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1)
1464 * enum nft_gen_attributes - nf_tables ruleset generation attributes
1466 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
1468 enum nft_gen_attributes {
1475 #define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1)
1478 * enum nft_fib_attributes - nf_tables fib expression netlink attributes
1480 * @NFTA_FIB_DREG: destination register (NLA_U32)
1481 * @NFTA_FIB_RESULT: desired result (NLA_U32)
1482 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32)
1484 * The FIB expression performs a route lookup according
1485 * to the packet data.
1487 enum nft_fib_attributes {
1494 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1)
1496 enum nft_fib_result {
1497 NFT_FIB_RESULT_UNSPEC,
1499 NFT_FIB_RESULT_OIFNAME,
1500 NFT_FIB_RESULT_ADDRTYPE,
1501 __NFT_FIB_RESULT_MAX
1503 #define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1)
1505 enum nft_fib_flags {
1506 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */
1507 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */
1508 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */
1509 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */
1510 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */
1511 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */
1514 enum nft_ct_helper_attributes {
1515 NFTA_CT_HELPER_UNSPEC,
1516 NFTA_CT_HELPER_NAME,
1517 NFTA_CT_HELPER_L3PROTO,
1518 NFTA_CT_HELPER_L4PROTO,
1519 __NFTA_CT_HELPER_MAX,
1521 #define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1)
1523 enum nft_ct_timeout_timeout_attributes {
1524 NFTA_CT_TIMEOUT_UNSPEC,
1525 NFTA_CT_TIMEOUT_L3PROTO,
1526 NFTA_CT_TIMEOUT_L4PROTO,
1527 NFTA_CT_TIMEOUT_DATA,
1528 __NFTA_CT_TIMEOUT_MAX,
1530 #define NFTA_CT_TIMEOUT_MAX (__NFTA_CT_TIMEOUT_MAX - 1)
1532 enum nft_ct_expectation_attributes {
1533 NFTA_CT_EXPECT_UNSPEC,
1534 NFTA_CT_EXPECT_L3PROTO,
1535 NFTA_CT_EXPECT_L4PROTO,
1536 NFTA_CT_EXPECT_DPORT,
1537 NFTA_CT_EXPECT_TIMEOUT,
1538 NFTA_CT_EXPECT_SIZE,
1539 __NFTA_CT_EXPECT_MAX,
1541 #define NFTA_CT_EXPECT_MAX (__NFTA_CT_EXPECT_MAX - 1)
1543 #define NFT_OBJECT_UNSPEC 0
1544 #define NFT_OBJECT_COUNTER 1
1545 #define NFT_OBJECT_QUOTA 2
1546 #define NFT_OBJECT_CT_HELPER 3
1547 #define NFT_OBJECT_LIMIT 4
1548 #define NFT_OBJECT_CONNLIMIT 5
1549 #define NFT_OBJECT_TUNNEL 6
1550 #define NFT_OBJECT_CT_TIMEOUT 7
1551 #define NFT_OBJECT_SECMARK 8
1552 #define NFT_OBJECT_CT_EXPECT 9
1553 #define NFT_OBJECT_SYNPROXY 10
1554 #define __NFT_OBJECT_MAX 11
1555 #define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1)
1558 * enum nft_object_attributes - nf_tables stateful object netlink attributes
1560 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING)
1561 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING)
1562 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32)
1563 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED)
1564 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32)
1565 * @NFTA_OBJ_HANDLE: object handle (NLA_U64)
1566 * @NFTA_OBJ_USERDATA: user data (NLA_BINARY)
1568 enum nft_object_attributes {
1580 #define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1)
1583 * enum nft_flowtable_flags - nf_tables flowtable flags
1585 * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled
1586 * @NFT_FLOWTABLE_COUNTER: enable flow counters
1588 enum nft_flowtable_flags {
1589 NFT_FLOWTABLE_HW_OFFLOAD = 0x1,
1590 NFT_FLOWTABLE_COUNTER = 0x2,
1591 NFT_FLOWTABLE_MASK = (NFT_FLOWTABLE_HW_OFFLOAD |
1592 NFT_FLOWTABLE_COUNTER)
1596 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
1598 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
1599 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
1600 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
1601 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
1602 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
1603 * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
1605 enum nft_flowtable_attributes {
1606 NFTA_FLOWTABLE_UNSPEC,
1607 NFTA_FLOWTABLE_TABLE,
1608 NFTA_FLOWTABLE_NAME,
1609 NFTA_FLOWTABLE_HOOK,
1611 NFTA_FLOWTABLE_HANDLE,
1613 NFTA_FLOWTABLE_FLAGS,
1614 __NFTA_FLOWTABLE_MAX
1616 #define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1)
1619 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
1621 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
1622 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
1623 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
1625 enum nft_flowtable_hook_attributes {
1626 NFTA_FLOWTABLE_HOOK_UNSPEC,
1627 NFTA_FLOWTABLE_HOOK_NUM,
1628 NFTA_FLOWTABLE_HOOK_PRIORITY,
1629 NFTA_FLOWTABLE_HOOK_DEVS,
1630 __NFTA_FLOWTABLE_HOOK_MAX
1632 #define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1)
1635 * enum nft_osf_attributes - nftables osf expression netlink attributes
1637 * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers)
1638 * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8)
1639 * @NFTA_OSF_FLAGS: flags (NLA_U32)
1641 enum nft_osf_attributes {
1648 #define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1)
1650 enum nft_osf_flags {
1651 NFT_OSF_F_VERSION = (1 << 0),
1655 * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes
1657 * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16)
1658 * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8)
1659 * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32)
1661 enum nft_synproxy_attributes {
1662 NFTA_SYNPROXY_UNSPEC,
1664 NFTA_SYNPROXY_WSCALE,
1665 NFTA_SYNPROXY_FLAGS,
1666 __NFTA_SYNPROXY_MAX,
1668 #define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1)
1671 * enum nft_device_attributes - nf_tables device netlink attributes
1673 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
1675 enum nft_devices_attributes {
1680 #define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1)
1683 * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes
1685 * @NFTA_XFRM_DREG: destination register (NLA_U32)
1686 * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32)
1687 * @NFTA_XFRM_DIR: direction (NLA_U8)
1688 * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32)
1690 enum nft_xfrm_attributes {
1698 #define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1)
1700 enum nft_xfrm_keys {
1701 NFT_XFRM_KEY_UNSPEC,
1702 NFT_XFRM_KEY_DADDR_IP4,
1703 NFT_XFRM_KEY_DADDR_IP6,
1704 NFT_XFRM_KEY_SADDR_IP4,
1705 NFT_XFRM_KEY_SADDR_IP6,
1710 #define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1)
1713 * enum nft_trace_attributes - nf_tables trace netlink attributes
1715 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
1716 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
1717 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
1718 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
1719 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
1720 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
1721 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
1722 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
1723 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
1724 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
1725 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
1726 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
1727 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
1728 * @NFTA_TRACE_MARK: nfmark (NLA_U32)
1729 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
1730 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
1732 enum nft_trace_attributes {
1736 NFTA_TRACE_RULE_HANDLE,
1740 NFTA_TRACE_LL_HEADER,
1741 NFTA_TRACE_NETWORK_HEADER,
1742 NFTA_TRACE_TRANSPORT_HEADER,
1753 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
1755 enum nft_trace_types {
1756 NFT_TRACETYPE_UNSPEC,
1757 NFT_TRACETYPE_POLICY,
1758 NFT_TRACETYPE_RETURN,
1762 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)
1765 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
1767 * @NFTA_NG_DREG: destination register (NLA_U32)
1768 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
1769 * @NFTA_NG_TYPE: operation type (NLA_U32)
1770 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
1771 * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING)
1772 * @NFTA_NG_SET_ID: id of the map (NLA_U32)
1774 enum nft_ng_attributes {
1780 NFTA_NG_SET_NAME, /* deprecated */
1781 NFTA_NG_SET_ID, /* deprecated */
1784 #define NFTA_NG_MAX (__NFTA_NG_MAX - 1)
1791 #define NFT_NG_MAX (__NFT_NG_MAX - 1)
1793 enum nft_tunnel_key_ip_attributes {
1794 NFTA_TUNNEL_KEY_IP_UNSPEC,
1795 NFTA_TUNNEL_KEY_IP_SRC,
1796 NFTA_TUNNEL_KEY_IP_DST,
1797 __NFTA_TUNNEL_KEY_IP_MAX
1799 #define NFTA_TUNNEL_KEY_IP_MAX (__NFTA_TUNNEL_KEY_IP_MAX - 1)
1801 enum nft_tunnel_ip6_attributes {
1802 NFTA_TUNNEL_KEY_IP6_UNSPEC,
1803 NFTA_TUNNEL_KEY_IP6_SRC,
1804 NFTA_TUNNEL_KEY_IP6_DST,
1805 NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
1806 __NFTA_TUNNEL_KEY_IP6_MAX
1808 #define NFTA_TUNNEL_KEY_IP6_MAX (__NFTA_TUNNEL_KEY_IP6_MAX - 1)
1810 enum nft_tunnel_opts_attributes {
1811 NFTA_TUNNEL_KEY_OPTS_UNSPEC,
1812 NFTA_TUNNEL_KEY_OPTS_VXLAN,
1813 NFTA_TUNNEL_KEY_OPTS_ERSPAN,
1814 NFTA_TUNNEL_KEY_OPTS_GENEVE,
1815 __NFTA_TUNNEL_KEY_OPTS_MAX
1817 #define NFTA_TUNNEL_KEY_OPTS_MAX (__NFTA_TUNNEL_KEY_OPTS_MAX - 1)
1819 enum nft_tunnel_opts_vxlan_attributes {
1820 NFTA_TUNNEL_KEY_VXLAN_UNSPEC,
1821 NFTA_TUNNEL_KEY_VXLAN_GBP,
1822 __NFTA_TUNNEL_KEY_VXLAN_MAX
1824 #define NFTA_TUNNEL_KEY_VXLAN_MAX (__NFTA_TUNNEL_KEY_VXLAN_MAX - 1)
1826 enum nft_tunnel_opts_erspan_attributes {
1827 NFTA_TUNNEL_KEY_ERSPAN_UNSPEC,
1828 NFTA_TUNNEL_KEY_ERSPAN_VERSION,
1829 NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
1830 NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
1831 NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
1832 __NFTA_TUNNEL_KEY_ERSPAN_MAX
1834 #define NFTA_TUNNEL_KEY_ERSPAN_MAX (__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1)
1836 enum nft_tunnel_opts_geneve_attributes {
1837 NFTA_TUNNEL_KEY_GENEVE_UNSPEC,
1838 NFTA_TUNNEL_KEY_GENEVE_CLASS,
1839 NFTA_TUNNEL_KEY_GENEVE_TYPE,
1840 NFTA_TUNNEL_KEY_GENEVE_DATA,
1841 __NFTA_TUNNEL_KEY_GENEVE_MAX
1843 #define NFTA_TUNNEL_KEY_GENEVE_MAX (__NFTA_TUNNEL_KEY_GENEVE_MAX - 1)
1845 enum nft_tunnel_flags {
1846 NFT_TUNNEL_F_ZERO_CSUM_TX = (1 << 0),
1847 NFT_TUNNEL_F_DONT_FRAGMENT = (1 << 1),
1848 NFT_TUNNEL_F_SEQ_NUMBER = (1 << 2),
1850 #define NFT_TUNNEL_F_MASK (NFT_TUNNEL_F_ZERO_CSUM_TX | \
1851 NFT_TUNNEL_F_DONT_FRAGMENT | \
1852 NFT_TUNNEL_F_SEQ_NUMBER)
1854 enum nft_tunnel_key_attributes {
1855 NFTA_TUNNEL_KEY_UNSPEC,
1858 NFTA_TUNNEL_KEY_IP6,
1859 NFTA_TUNNEL_KEY_FLAGS,
1860 NFTA_TUNNEL_KEY_TOS,
1861 NFTA_TUNNEL_KEY_TTL,
1862 NFTA_TUNNEL_KEY_SPORT,
1863 NFTA_TUNNEL_KEY_DPORT,
1864 NFTA_TUNNEL_KEY_OPTS,
1865 __NFTA_TUNNEL_KEY_MAX
1867 #define NFTA_TUNNEL_KEY_MAX (__NFTA_TUNNEL_KEY_MAX - 1)
1869 enum nft_tunnel_keys {
1874 #define NFT_TUNNEL_MAX (__NFT_TUNNEL_MAX - 1)
1876 enum nft_tunnel_mode {
1877 NFT_TUNNEL_MODE_NONE,
1880 __NFT_TUNNEL_MODE_MAX
1882 #define NFT_TUNNEL_MODE_MAX (__NFT_TUNNEL_MODE_MAX - 1)
1884 enum nft_tunnel_attributes {
1891 #define NFTA_TUNNEL_MAX (__NFTA_TUNNEL_MAX - 1)
1893 #endif /* _LINUX_NF_TABLES_H */