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)
176 enum nft_table_attributes {
185 #define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1)
188 * enum nft_chain_attributes - nf_tables chain netlink attributes
190 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
191 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
192 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
193 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
194 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
195 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
196 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
197 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
198 * @NFTA_CHAIN_FLAGS: chain flags
200 enum nft_chain_attributes {
214 #define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1)
217 * enum nft_rule_attributes - nf_tables rule netlink attributes
219 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
220 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
221 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
222 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
223 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
224 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
225 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
226 * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32)
227 * @NFTA_RULE_POSITION_ID: transaction unique identifier of the previous rule (NLA_U32)
229 enum nft_rule_attributes {
234 NFTA_RULE_EXPRESSIONS,
240 NFTA_RULE_POSITION_ID,
243 #define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1)
246 * enum nft_rule_compat_flags - nf_tables rule compat flags
248 * @NFT_RULE_COMPAT_F_INV: invert the check result
250 enum nft_rule_compat_flags {
251 NFT_RULE_COMPAT_F_INV = (1 << 1),
252 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV,
256 * enum nft_rule_compat_attributes - nf_tables rule compat attributes
258 * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32)
259 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
261 enum nft_rule_compat_attributes {
262 NFTA_RULE_COMPAT_UNSPEC,
263 NFTA_RULE_COMPAT_PROTO,
264 NFTA_RULE_COMPAT_FLAGS,
265 __NFTA_RULE_COMPAT_MAX
267 #define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1)
270 * enum nft_set_flags - nf_tables set flags
272 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
273 * @NFT_SET_CONSTANT: set contents may not change while bound
274 * @NFT_SET_INTERVAL: set contains intervals
275 * @NFT_SET_MAP: set is used as a dictionary
276 * @NFT_SET_TIMEOUT: set uses timeouts
277 * @NFT_SET_EVAL: set can be updated from the evaluation path
278 * @NFT_SET_OBJECT: set contains stateful objects
279 * @NFT_SET_CONCAT: set contains a concatenation
282 NFT_SET_ANONYMOUS = 0x1,
283 NFT_SET_CONSTANT = 0x2,
284 NFT_SET_INTERVAL = 0x4,
286 NFT_SET_TIMEOUT = 0x10,
288 NFT_SET_OBJECT = 0x40,
289 NFT_SET_CONCAT = 0x80,
293 * enum nft_set_policies - set selection policy
295 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
296 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
298 enum nft_set_policies {
299 NFT_SET_POL_PERFORMANCE,
304 * enum nft_set_desc_attributes - set element description
306 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
307 * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED)
309 enum nft_set_desc_attributes {
310 NFTA_SET_DESC_UNSPEC,
312 NFTA_SET_DESC_CONCAT,
315 #define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1)
318 * enum nft_set_field_attributes - attributes of concatenated fields
320 * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32)
322 enum nft_set_field_attributes {
323 NFTA_SET_FIELD_UNSPEC,
327 #define NFTA_SET_FIELD_MAX (__NFTA_SET_FIELD_MAX - 1)
330 * enum nft_set_attributes - nf_tables set netlink attributes
332 * @NFTA_SET_TABLE: table name (NLA_STRING)
333 * @NFTA_SET_NAME: set name (NLA_STRING)
334 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
335 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
336 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
337 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
338 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
339 * @NFTA_SET_POLICY: selection policy (NLA_U32)
340 * @NFTA_SET_DESC: set description (NLA_NESTED)
341 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
342 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
343 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
344 * @NFTA_SET_USERDATA: user data (NLA_BINARY)
345 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*)
346 * @NFTA_SET_HANDLE: set handle (NLA_U64)
347 * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes)
349 enum nft_set_attributes {
362 NFTA_SET_GC_INTERVAL,
370 #define NFTA_SET_MAX (__NFTA_SET_MAX - 1)
373 * enum nft_set_elem_flags - nf_tables set element flags
375 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
377 enum nft_set_elem_flags {
378 NFT_SET_ELEM_INTERVAL_END = 0x1,
382 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
384 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
385 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
386 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
387 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
388 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
389 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
390 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
391 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING)
392 * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data)
394 enum nft_set_elem_attributes {
395 NFTA_SET_ELEM_UNSPEC,
399 NFTA_SET_ELEM_TIMEOUT,
400 NFTA_SET_ELEM_EXPIRATION,
401 NFTA_SET_ELEM_USERDATA,
404 NFTA_SET_ELEM_OBJREF,
405 NFTA_SET_ELEM_KEY_END,
408 #define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
411 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
413 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
414 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
415 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
416 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
418 enum nft_set_elem_list_attributes {
419 NFTA_SET_ELEM_LIST_UNSPEC,
420 NFTA_SET_ELEM_LIST_TABLE,
421 NFTA_SET_ELEM_LIST_SET,
422 NFTA_SET_ELEM_LIST_ELEMENTS,
423 NFTA_SET_ELEM_LIST_SET_ID,
424 __NFTA_SET_ELEM_LIST_MAX
426 #define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1)
429 * enum nft_data_types - nf_tables data types
431 * @NFT_DATA_VALUE: generic data
432 * @NFT_DATA_VERDICT: netfilter verdict
434 * The type of data is usually determined by the kernel directly and is not
435 * explicitly specified by userspace. The only difference are sets, where
436 * userspace specifies the key and mapping data types.
438 * The values 0xffffff00-0xffffffff are reserved for internally used types.
439 * The remaining range can be freely used by userspace to encode types, all
440 * values are equivalent to NFT_DATA_VALUE.
442 enum nft_data_types {
444 NFT_DATA_VERDICT = 0xffffff00U,
447 #define NFT_DATA_RESERVED_MASK 0xffffff00U
450 * enum nft_data_attributes - nf_tables data netlink attributes
452 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
453 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
455 enum nft_data_attributes {
461 #define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1)
463 /* Maximum length of a value */
464 #define NFT_DATA_VALUE_MAXLEN 64
467 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
469 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
470 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
472 enum nft_verdict_attributes {
478 #define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1)
481 * enum nft_expr_attributes - nf_tables expression netlink attributes
483 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
484 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
486 enum nft_expr_attributes {
492 #define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1)
495 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
497 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
498 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
500 enum nft_immediate_attributes {
501 NFTA_IMMEDIATE_UNSPEC,
506 #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1)
509 * enum nft_bitwise_ops - nf_tables bitwise operations
511 * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and
512 * XOR boolean operations
513 * @NFT_BITWISE_LSHIFT: left-shift operation
514 * @NFT_BITWISE_RSHIFT: right-shift operation
516 enum nft_bitwise_ops {
523 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
525 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
526 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
527 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
528 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
529 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
530 * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops)
531 * @NFTA_BITWISE_DATA: argument for non-boolean operations
532 * (NLA_NESTED: nft_data_attributes)
534 * The bitwise expression supports boolean and shift operations. It implements
535 * the boolean operations by performing the following operation:
537 * dreg = (sreg & mask) ^ xor
539 * with these mask and xor values:
547 enum nft_bitwise_attributes {
558 #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)
561 * enum nft_byteorder_ops - nf_tables byteorder operators
563 * @NFT_BYTEORDER_NTOH: network to host operator
564 * @NFT_BYTEORDER_HTON: host to network operator
566 enum nft_byteorder_ops {
572 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
574 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
575 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
576 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
577 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
578 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
580 enum nft_byteorder_attributes {
581 NFTA_BYTEORDER_UNSPEC,
589 #define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1)
592 * enum nft_cmp_ops - nf_tables relational operator
595 * @NFT_CMP_NEQ: not equal
596 * @NFT_CMP_LT: less than
597 * @NFT_CMP_LTE: less than or equal to
598 * @NFT_CMP_GT: greater than
599 * @NFT_CMP_GTE: greater than or equal to
611 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
613 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
614 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
615 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
617 enum nft_cmp_attributes {
624 #define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
627 * enum nft_range_ops - nf_tables range operator
629 * @NFT_RANGE_EQ: equal
630 * @NFT_RANGE_NEQ: not equal
638 * enum nft_range_attributes - nf_tables range expression netlink attributes
640 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
641 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops)
642 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
643 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
645 enum nft_range_attributes {
649 NFTA_RANGE_FROM_DATA,
653 #define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1)
655 enum nft_lookup_flags {
656 NFT_LOOKUP_F_INV = (1 << 0),
660 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
662 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
663 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
664 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
665 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
666 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
668 enum nft_lookup_attributes {
677 #define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1)
679 enum nft_dynset_ops {
681 NFT_DYNSET_OP_UPDATE,
682 NFT_DYNSET_OP_DELETE,
685 enum nft_dynset_flags {
686 NFT_DYNSET_F_INV = (1 << 0),
690 * enum nft_dynset_attributes - dynset expression attributes
692 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
693 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
694 * @NFTA_DYNSET_OP: operation (NLA_U32)
695 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
696 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
697 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
698 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
699 * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
701 enum nft_dynset_attributes {
703 NFTA_DYNSET_SET_NAME,
706 NFTA_DYNSET_SREG_KEY,
707 NFTA_DYNSET_SREG_DATA,
714 #define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1)
717 * enum nft_payload_bases - nf_tables payload expression offset bases
719 * @NFT_PAYLOAD_LL_HEADER: link layer header
720 * @NFT_PAYLOAD_NETWORK_HEADER: network header
721 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
723 enum nft_payload_bases {
724 NFT_PAYLOAD_LL_HEADER,
725 NFT_PAYLOAD_NETWORK_HEADER,
726 NFT_PAYLOAD_TRANSPORT_HEADER,
730 * enum nft_payload_csum_types - nf_tables payload expression checksum types
732 * @NFT_PAYLOAD_CSUM_NONE: no checksumming
733 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
735 enum nft_payload_csum_types {
736 NFT_PAYLOAD_CSUM_NONE,
737 NFT_PAYLOAD_CSUM_INET,
740 enum nft_payload_csum_flags {
741 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
745 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
747 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
748 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
749 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
750 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
751 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
752 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
753 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
754 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32)
756 enum nft_payload_attributes {
763 NFTA_PAYLOAD_CSUM_TYPE,
764 NFTA_PAYLOAD_CSUM_OFFSET,
765 NFTA_PAYLOAD_CSUM_FLAGS,
768 #define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1)
770 enum nft_exthdr_flags {
771 NFT_EXTHDR_F_PRESENT = (1 << 0),
775 * enum nft_exthdr_op - nf_tables match options
777 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers
778 * @NFT_EXTHDR_OP_TCP: match against tcp options
779 * @NFT_EXTHDR_OP_IPV4: match against ipv4 options
783 NFT_EXTHDR_OP_TCPOPT,
787 #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1)
790 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes
792 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
793 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
794 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
795 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
796 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32)
797 * @NFTA_EXTHDR_OP: option match type (NLA_U32)
798 * @NFTA_EXTHDR_SREG: option match type (NLA_U32)
800 enum nft_exthdr_attributes {
811 #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1)
814 * enum nft_meta_keys - nf_tables meta expression keys
816 * @NFT_META_LEN: packet length (skb->len)
817 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
818 * @NFT_META_PRIORITY: packet priority (skb->priority)
819 * @NFT_META_MARK: packet mark (skb->mark)
820 * @NFT_META_IIF: packet input interface index (dev->ifindex)
821 * @NFT_META_OIF: packet output interface index (dev->ifindex)
822 * @NFT_META_IIFNAME: packet input interface name (dev->name)
823 * @NFT_META_OIFNAME: packet output interface name (dev->name)
824 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
825 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
826 * @NFT_META_SKUID: originating socket UID (fsuid)
827 * @NFT_META_SKGID: originating socket GID (fsgid)
828 * @NFT_META_NFTRACE: packet nftrace bit
829 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
830 * @NFT_META_SECMARK: packet secmark (skb->secmark)
831 * @NFT_META_NFPROTO: netfilter protocol
832 * @NFT_META_L4PROTO: layer 4 protocol number
833 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
834 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
835 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
836 * @NFT_META_CPU: cpu id through smp_processor_id()
837 * @NFT_META_IIFGROUP: packet input interface group
838 * @NFT_META_OIFGROUP: packet output interface group
839 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
840 * @NFT_META_PRANDOM: a 32bit pseudo-random number
841 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
842 * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind)
843 * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind)
844 * @NFT_META_BRI_IIFPVID: packet input bridge port pvid
845 * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto
846 * @NFT_META_TIME_NS: time since epoch (in nanoseconds)
847 * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday)
848 * @NFT_META_TIME_HOUR: hour of day (in seconds)
849 * @NFT_META_SDIF: slave device interface index
850 * @NFT_META_SDIFNAME: slave device interface name
870 NFT_META_BRI_IIFNAME,
871 NFT_META_BRI_OIFNAME,
881 NFT_META_BRI_IIFPVID,
882 NFT_META_BRI_IIFVPROTO,
891 * enum nft_rt_keys - nf_tables routing expression keys
893 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid)
894 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4
895 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6
896 * @NFT_RT_TCPMSS: fetch current path tcp mss
897 * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL
907 #define NFT_RT_MAX (__NFT_RT_MAX - 1)
910 * enum nft_hash_types - nf_tables hash expression types
912 * @NFT_HASH_JENKINS: Jenkins Hash
913 * @NFT_HASH_SYM: Symmetric Hash
915 enum nft_hash_types {
921 * enum nft_hash_attributes - nf_tables hash expression netlink attributes
923 * @NFTA_HASH_SREG: source register (NLA_U32)
924 * @NFTA_HASH_DREG: destination register (NLA_U32)
925 * @NFTA_HASH_LEN: source data length (NLA_U32)
926 * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
927 * @NFTA_HASH_SEED: seed value (NLA_U32)
928 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
929 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types)
930 * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING)
931 * @NFTA_HASH_SET_ID: id of the map (NLA_U32)
933 enum nft_hash_attributes {
942 NFTA_HASH_SET_NAME, /* deprecated */
943 NFTA_HASH_SET_ID, /* deprecated */
946 #define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1)
949 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
951 * @NFTA_META_DREG: destination register (NLA_U32)
952 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
953 * @NFTA_META_SREG: source register (NLA_U32)
955 enum nft_meta_attributes {
962 #define NFTA_META_MAX (__NFTA_META_MAX - 1)
965 * enum nft_rt_attributes - nf_tables routing expression netlink attributes
967 * @NFTA_RT_DREG: destination register (NLA_U32)
968 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys)
970 enum nft_rt_attributes {
976 #define NFTA_RT_MAX (__NFTA_RT_MAX - 1)
979 * enum nft_socket_attributes - nf_tables socket expression netlink attributes
981 * @NFTA_SOCKET_KEY: socket key to match
982 * @NFTA_SOCKET_DREG: destination register
984 enum nft_socket_attributes {
990 #define NFTA_SOCKET_MAX (__NFTA_SOCKET_MAX - 1)
993 * enum nft_socket_keys - nf_tables socket expression keys
995 * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option
996 * @NFT_SOCKET_MARK: Value of the socket mark
998 enum nft_socket_keys {
999 NFT_SOCKET_TRANSPARENT,
1003 #define NFT_SOCKET_MAX (__NFT_SOCKET_MAX - 1)
1006 * enum nft_ct_keys - nf_tables ct expression keys
1008 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
1009 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
1010 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
1011 * @NFT_CT_MARK: conntrack mark value
1012 * @NFT_CT_SECMARK: conntrack secmark value
1013 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
1014 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
1015 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
1016 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated)
1017 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated)
1018 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
1019 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
1020 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
1021 * @NFT_CT_LABELS: conntrack labels
1022 * @NFT_CT_PKTS: conntrack packets
1023 * @NFT_CT_BYTES: conntrack bytes
1024 * @NFT_CT_AVGPKT: conntrack average bytes per packet
1025 * @NFT_CT_ZONE: conntrack zone
1026 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack
1027 * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address)
1028 * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address)
1029 * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address)
1030 * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address)
1031 * @NFT_CT_ID: conntrack id
1060 #define NFT_CT_MAX (__NFT_CT_MAX - 1)
1063 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
1065 * @NFTA_CT_DREG: destination register (NLA_U32)
1066 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
1067 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
1068 * @NFTA_CT_SREG: source register (NLA_U32)
1070 enum nft_ct_attributes {
1078 #define NFTA_CT_MAX (__NFTA_CT_MAX - 1)
1081 * enum nft_flow_attributes - ct offload expression attributes
1082 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
1084 enum nft_offload_attributes {
1086 NFTA_FLOW_TABLE_NAME,
1089 #define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1)
1091 enum nft_limit_type {
1096 enum nft_limit_flags {
1097 NFT_LIMIT_F_INV = (1 << 0),
1101 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
1103 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
1104 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
1105 * @NFTA_LIMIT_BURST: burst (NLA_U32)
1106 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
1107 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
1109 enum nft_limit_attributes {
1119 #define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1)
1121 enum nft_connlimit_flags {
1122 NFT_CONNLIMIT_F_INV = (1 << 0),
1126 * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes
1128 * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32)
1129 * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags)
1131 enum nft_connlimit_attributes {
1132 NFTA_CONNLIMIT_UNSPEC,
1133 NFTA_CONNLIMIT_COUNT,
1134 NFTA_CONNLIMIT_FLAGS,
1135 __NFTA_CONNLIMIT_MAX
1137 #define NFTA_CONNLIMIT_MAX (__NFTA_CONNLIMIT_MAX - 1)
1140 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
1142 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
1143 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
1145 enum nft_counter_attributes {
1146 NFTA_COUNTER_UNSPEC,
1148 NFTA_COUNTER_PACKETS,
1152 #define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1)
1155 * enum nft_log_attributes - nf_tables log expression netlink attributes
1157 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
1158 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
1159 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
1160 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
1161 * @NFTA_LOG_LEVEL: log level (NLA_U32)
1162 * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
1164 enum nft_log_attributes {
1169 NFTA_LOG_QTHRESHOLD,
1174 #define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1)
1177 * enum nft_log_level - nf_tables log levels
1179 * @NFT_LOGLEVEL_EMERG: system is unusable
1180 * @NFT_LOGLEVEL_ALERT: action must be taken immediately
1181 * @NFT_LOGLEVEL_CRIT: critical conditions
1182 * @NFT_LOGLEVEL_ERR: error conditions
1183 * @NFT_LOGLEVEL_WARNING: warning conditions
1184 * @NFT_LOGLEVEL_NOTICE: normal but significant condition
1185 * @NFT_LOGLEVEL_INFO: informational
1186 * @NFT_LOGLEVEL_DEBUG: debug-level messages
1187 * @NFT_LOGLEVEL_AUDIT: enabling audit logging
1189 enum nft_log_level {
1194 NFT_LOGLEVEL_WARNING,
1195 NFT_LOGLEVEL_NOTICE,
1201 #define NFT_LOGLEVEL_MAX (__NFT_LOGLEVEL_MAX - 1)
1204 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
1206 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
1207 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
1208 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
1209 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
1211 enum nft_queue_attributes {
1216 NFTA_QUEUE_SREG_QNUM,
1219 #define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1)
1221 #define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */
1222 #define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */
1223 #define NFT_QUEUE_FLAG_MASK 0x03
1225 enum nft_quota_flags {
1226 NFT_QUOTA_F_INV = (1 << 0),
1227 NFT_QUOTA_F_DEPLETED = (1 << 1),
1231 * enum nft_quota_attributes - nf_tables quota expression netlink attributes
1233 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
1234 * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
1235 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
1237 enum nft_quota_attributes {
1242 NFTA_QUOTA_CONSUMED,
1245 #define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1)
1248 * enum nft_secmark_attributes - nf_tables secmark object netlink attributes
1250 * @NFTA_SECMARK_CTX: security context (NLA_STRING)
1252 enum nft_secmark_attributes {
1253 NFTA_SECMARK_UNSPEC,
1257 #define NFTA_SECMARK_MAX (__NFTA_SECMARK_MAX - 1)
1259 /* Max security context length */
1260 #define NFT_SECMARK_CTX_MAXLEN 256
1263 * enum nft_reject_types - nf_tables reject expression reject types
1265 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
1266 * @NFT_REJECT_TCP_RST: reject using TCP RST
1267 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
1269 enum nft_reject_types {
1270 NFT_REJECT_ICMP_UNREACH,
1272 NFT_REJECT_ICMPX_UNREACH,
1276 * enum nft_reject_code - Generic reject codes for IPv4/IPv6
1278 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
1279 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
1280 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
1281 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
1283 * These codes are mapped to real ICMP and ICMPv6 codes.
1285 enum nft_reject_inet_code {
1286 NFT_REJECT_ICMPX_NO_ROUTE = 0,
1287 NFT_REJECT_ICMPX_PORT_UNREACH,
1288 NFT_REJECT_ICMPX_HOST_UNREACH,
1289 NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
1290 __NFT_REJECT_ICMPX_MAX
1292 #define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
1295 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
1297 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
1298 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
1300 enum nft_reject_attributes {
1303 NFTA_REJECT_ICMP_CODE,
1306 #define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1)
1309 * enum nft_nat_types - nf_tables nat expression NAT types
1311 * @NFT_NAT_SNAT: source NAT
1312 * @NFT_NAT_DNAT: destination NAT
1314 enum nft_nat_types {
1320 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
1322 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
1323 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
1324 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
1325 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
1326 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1327 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1328 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1330 enum nft_nat_attributes {
1334 NFTA_NAT_REG_ADDR_MIN,
1335 NFTA_NAT_REG_ADDR_MAX,
1336 NFTA_NAT_REG_PROTO_MIN,
1337 NFTA_NAT_REG_PROTO_MAX,
1341 #define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
1344 * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes
1346 * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers)
1347 * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers)
1348 * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers)
1350 enum nft_tproxy_attributes {
1353 NFTA_TPROXY_REG_ADDR,
1354 NFTA_TPROXY_REG_PORT,
1357 #define NFTA_TPROXY_MAX (__NFTA_TPROXY_MAX - 1)
1360 * enum nft_masq_attributes - nf_tables masquerade expression attributes
1362 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1363 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1364 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1366 enum nft_masq_attributes {
1369 NFTA_MASQ_REG_PROTO_MIN,
1370 NFTA_MASQ_REG_PROTO_MAX,
1373 #define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
1376 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
1378 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1379 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1380 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1382 enum nft_redir_attributes {
1384 NFTA_REDIR_REG_PROTO_MIN,
1385 NFTA_REDIR_REG_PROTO_MAX,
1389 #define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1)
1392 * enum nft_dup_attributes - nf_tables dup expression netlink attributes
1394 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
1395 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1397 enum nft_dup_attributes {
1403 #define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1)
1406 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
1408 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1409 * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register)
1410 * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto)
1412 enum nft_fwd_attributes {
1419 #define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1)
1422 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes
1424 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register)
1425 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING)
1426 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers)
1427 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING)
1428 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32)
1430 enum nft_objref_attributes {
1432 NFTA_OBJREF_IMM_TYPE,
1433 NFTA_OBJREF_IMM_NAME,
1434 NFTA_OBJREF_SET_SREG,
1435 NFTA_OBJREF_SET_NAME,
1439 #define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1)
1442 * enum nft_gen_attributes - nf_tables ruleset generation attributes
1444 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
1446 enum nft_gen_attributes {
1453 #define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1)
1456 * enum nft_fib_attributes - nf_tables fib expression netlink attributes
1458 * @NFTA_FIB_DREG: destination register (NLA_U32)
1459 * @NFTA_FIB_RESULT: desired result (NLA_U32)
1460 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32)
1462 * The FIB expression performs a route lookup according
1463 * to the packet data.
1465 enum nft_fib_attributes {
1472 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1)
1474 enum nft_fib_result {
1475 NFT_FIB_RESULT_UNSPEC,
1477 NFT_FIB_RESULT_OIFNAME,
1478 NFT_FIB_RESULT_ADDRTYPE,
1479 __NFT_FIB_RESULT_MAX
1481 #define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1)
1483 enum nft_fib_flags {
1484 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */
1485 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */
1486 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */
1487 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */
1488 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */
1489 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */
1492 enum nft_ct_helper_attributes {
1493 NFTA_CT_HELPER_UNSPEC,
1494 NFTA_CT_HELPER_NAME,
1495 NFTA_CT_HELPER_L3PROTO,
1496 NFTA_CT_HELPER_L4PROTO,
1497 __NFTA_CT_HELPER_MAX,
1499 #define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1)
1501 enum nft_ct_timeout_timeout_attributes {
1502 NFTA_CT_TIMEOUT_UNSPEC,
1503 NFTA_CT_TIMEOUT_L3PROTO,
1504 NFTA_CT_TIMEOUT_L4PROTO,
1505 NFTA_CT_TIMEOUT_DATA,
1506 __NFTA_CT_TIMEOUT_MAX,
1508 #define NFTA_CT_TIMEOUT_MAX (__NFTA_CT_TIMEOUT_MAX - 1)
1510 enum nft_ct_expectation_attributes {
1511 NFTA_CT_EXPECT_UNSPEC,
1512 NFTA_CT_EXPECT_L3PROTO,
1513 NFTA_CT_EXPECT_L4PROTO,
1514 NFTA_CT_EXPECT_DPORT,
1515 NFTA_CT_EXPECT_TIMEOUT,
1516 NFTA_CT_EXPECT_SIZE,
1517 __NFTA_CT_EXPECT_MAX,
1519 #define NFTA_CT_EXPECT_MAX (__NFTA_CT_EXPECT_MAX - 1)
1521 #define NFT_OBJECT_UNSPEC 0
1522 #define NFT_OBJECT_COUNTER 1
1523 #define NFT_OBJECT_QUOTA 2
1524 #define NFT_OBJECT_CT_HELPER 3
1525 #define NFT_OBJECT_LIMIT 4
1526 #define NFT_OBJECT_CONNLIMIT 5
1527 #define NFT_OBJECT_TUNNEL 6
1528 #define NFT_OBJECT_CT_TIMEOUT 7
1529 #define NFT_OBJECT_SECMARK 8
1530 #define NFT_OBJECT_CT_EXPECT 9
1531 #define NFT_OBJECT_SYNPROXY 10
1532 #define __NFT_OBJECT_MAX 11
1533 #define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1)
1536 * enum nft_object_attributes - nf_tables stateful object netlink attributes
1538 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING)
1539 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING)
1540 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32)
1541 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED)
1542 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32)
1543 * @NFTA_OBJ_HANDLE: object handle (NLA_U64)
1545 enum nft_object_attributes {
1556 #define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1)
1559 * enum nft_flowtable_flags - nf_tables flowtable flags
1561 * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled
1562 * @NFT_FLOWTABLE_COUNTER: enable flow counters
1564 enum nft_flowtable_flags {
1565 NFT_FLOWTABLE_HW_OFFLOAD = 0x1,
1566 NFT_FLOWTABLE_COUNTER = 0x2,
1567 NFT_FLOWTABLE_MASK = (NFT_FLOWTABLE_HW_OFFLOAD |
1568 NFT_FLOWTABLE_COUNTER)
1572 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
1574 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
1575 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
1576 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
1577 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
1578 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
1579 * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
1581 enum nft_flowtable_attributes {
1582 NFTA_FLOWTABLE_UNSPEC,
1583 NFTA_FLOWTABLE_TABLE,
1584 NFTA_FLOWTABLE_NAME,
1585 NFTA_FLOWTABLE_HOOK,
1587 NFTA_FLOWTABLE_HANDLE,
1589 NFTA_FLOWTABLE_FLAGS,
1590 __NFTA_FLOWTABLE_MAX
1592 #define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1)
1595 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
1597 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
1598 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
1599 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
1601 enum nft_flowtable_hook_attributes {
1602 NFTA_FLOWTABLE_HOOK_UNSPEC,
1603 NFTA_FLOWTABLE_HOOK_NUM,
1604 NFTA_FLOWTABLE_HOOK_PRIORITY,
1605 NFTA_FLOWTABLE_HOOK_DEVS,
1606 __NFTA_FLOWTABLE_HOOK_MAX
1608 #define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1)
1611 * enum nft_osf_attributes - nftables osf expression netlink attributes
1613 * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers)
1614 * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8)
1615 * @NFTA_OSF_FLAGS: flags (NLA_U32)
1617 enum nft_osf_attributes {
1624 #define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1)
1626 enum nft_osf_flags {
1627 NFT_OSF_F_VERSION = (1 << 0),
1631 * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes
1633 * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16)
1634 * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8)
1635 * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32)
1637 enum nft_synproxy_attributes {
1638 NFTA_SYNPROXY_UNSPEC,
1640 NFTA_SYNPROXY_WSCALE,
1641 NFTA_SYNPROXY_FLAGS,
1642 __NFTA_SYNPROXY_MAX,
1644 #define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1)
1647 * enum nft_device_attributes - nf_tables device netlink attributes
1649 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
1651 enum nft_devices_attributes {
1656 #define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1)
1659 * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes
1661 * @NFTA_XFRM_DREG: destination register (NLA_U32)
1662 * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32)
1663 * @NFTA_XFRM_DIR: direction (NLA_U8)
1664 * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32)
1666 enum nft_xfrm_attributes {
1674 #define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1)
1676 enum nft_xfrm_keys {
1677 NFT_XFRM_KEY_UNSPEC,
1678 NFT_XFRM_KEY_DADDR_IP4,
1679 NFT_XFRM_KEY_DADDR_IP6,
1680 NFT_XFRM_KEY_SADDR_IP4,
1681 NFT_XFRM_KEY_SADDR_IP6,
1686 #define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1)
1689 * enum nft_trace_attributes - nf_tables trace netlink attributes
1691 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
1692 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
1693 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
1694 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
1695 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
1696 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
1697 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
1698 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
1699 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
1700 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
1701 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
1702 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
1703 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
1704 * @NFTA_TRACE_MARK: nfmark (NLA_U32)
1705 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
1706 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
1708 enum nft_trace_attributes {
1712 NFTA_TRACE_RULE_HANDLE,
1716 NFTA_TRACE_LL_HEADER,
1717 NFTA_TRACE_NETWORK_HEADER,
1718 NFTA_TRACE_TRANSPORT_HEADER,
1729 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
1731 enum nft_trace_types {
1732 NFT_TRACETYPE_UNSPEC,
1733 NFT_TRACETYPE_POLICY,
1734 NFT_TRACETYPE_RETURN,
1738 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)
1741 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
1743 * @NFTA_NG_DREG: destination register (NLA_U32)
1744 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
1745 * @NFTA_NG_TYPE: operation type (NLA_U32)
1746 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
1747 * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING)
1748 * @NFTA_NG_SET_ID: id of the map (NLA_U32)
1750 enum nft_ng_attributes {
1756 NFTA_NG_SET_NAME, /* deprecated */
1757 NFTA_NG_SET_ID, /* deprecated */
1760 #define NFTA_NG_MAX (__NFTA_NG_MAX - 1)
1767 #define NFT_NG_MAX (__NFT_NG_MAX - 1)
1769 enum nft_tunnel_key_ip_attributes {
1770 NFTA_TUNNEL_KEY_IP_UNSPEC,
1771 NFTA_TUNNEL_KEY_IP_SRC,
1772 NFTA_TUNNEL_KEY_IP_DST,
1773 __NFTA_TUNNEL_KEY_IP_MAX
1775 #define NFTA_TUNNEL_KEY_IP_MAX (__NFTA_TUNNEL_KEY_IP_MAX - 1)
1777 enum nft_tunnel_ip6_attributes {
1778 NFTA_TUNNEL_KEY_IP6_UNSPEC,
1779 NFTA_TUNNEL_KEY_IP6_SRC,
1780 NFTA_TUNNEL_KEY_IP6_DST,
1781 NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
1782 __NFTA_TUNNEL_KEY_IP6_MAX
1784 #define NFTA_TUNNEL_KEY_IP6_MAX (__NFTA_TUNNEL_KEY_IP6_MAX - 1)
1786 enum nft_tunnel_opts_attributes {
1787 NFTA_TUNNEL_KEY_OPTS_UNSPEC,
1788 NFTA_TUNNEL_KEY_OPTS_VXLAN,
1789 NFTA_TUNNEL_KEY_OPTS_ERSPAN,
1790 NFTA_TUNNEL_KEY_OPTS_GENEVE,
1791 __NFTA_TUNNEL_KEY_OPTS_MAX
1793 #define NFTA_TUNNEL_KEY_OPTS_MAX (__NFTA_TUNNEL_KEY_OPTS_MAX - 1)
1795 enum nft_tunnel_opts_vxlan_attributes {
1796 NFTA_TUNNEL_KEY_VXLAN_UNSPEC,
1797 NFTA_TUNNEL_KEY_VXLAN_GBP,
1798 __NFTA_TUNNEL_KEY_VXLAN_MAX
1800 #define NFTA_TUNNEL_KEY_VXLAN_MAX (__NFTA_TUNNEL_KEY_VXLAN_MAX - 1)
1802 enum nft_tunnel_opts_erspan_attributes {
1803 NFTA_TUNNEL_KEY_ERSPAN_UNSPEC,
1804 NFTA_TUNNEL_KEY_ERSPAN_VERSION,
1805 NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
1806 NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
1807 NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
1808 __NFTA_TUNNEL_KEY_ERSPAN_MAX
1810 #define NFTA_TUNNEL_KEY_ERSPAN_MAX (__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1)
1812 enum nft_tunnel_opts_geneve_attributes {
1813 NFTA_TUNNEL_KEY_GENEVE_UNSPEC,
1814 NFTA_TUNNEL_KEY_GENEVE_CLASS,
1815 NFTA_TUNNEL_KEY_GENEVE_TYPE,
1816 NFTA_TUNNEL_KEY_GENEVE_DATA,
1817 __NFTA_TUNNEL_KEY_GENEVE_MAX
1819 #define NFTA_TUNNEL_KEY_GENEVE_MAX (__NFTA_TUNNEL_KEY_GENEVE_MAX - 1)
1821 enum nft_tunnel_flags {
1822 NFT_TUNNEL_F_ZERO_CSUM_TX = (1 << 0),
1823 NFT_TUNNEL_F_DONT_FRAGMENT = (1 << 1),
1824 NFT_TUNNEL_F_SEQ_NUMBER = (1 << 2),
1826 #define NFT_TUNNEL_F_MASK (NFT_TUNNEL_F_ZERO_CSUM_TX | \
1827 NFT_TUNNEL_F_DONT_FRAGMENT | \
1828 NFT_TUNNEL_F_SEQ_NUMBER)
1830 enum nft_tunnel_key_attributes {
1831 NFTA_TUNNEL_KEY_UNSPEC,
1834 NFTA_TUNNEL_KEY_IP6,
1835 NFTA_TUNNEL_KEY_FLAGS,
1836 NFTA_TUNNEL_KEY_TOS,
1837 NFTA_TUNNEL_KEY_TTL,
1838 NFTA_TUNNEL_KEY_SPORT,
1839 NFTA_TUNNEL_KEY_DPORT,
1840 NFTA_TUNNEL_KEY_OPTS,
1841 __NFTA_TUNNEL_KEY_MAX
1843 #define NFTA_TUNNEL_KEY_MAX (__NFTA_TUNNEL_KEY_MAX - 1)
1845 enum nft_tunnel_keys {
1850 #define NFT_TUNNEL_MAX (__NFT_TUNNEL_MAX - 1)
1852 enum nft_tunnel_mode {
1853 NFT_TUNNEL_MODE_NONE,
1856 __NFT_TUNNEL_MODE_MAX
1858 #define NFT_TUNNEL_MODE_MAX (__NFT_TUNNEL_MODE_MAX - 1)
1860 enum nft_tunnel_attributes {
1867 #define NFTA_TUNNEL_MAX (__NFTA_TUNNEL_MAX - 1)
1869 #endif /* _LINUX_NF_TABLES_H */