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
281 NFT_SET_ANONYMOUS = 0x1,
282 NFT_SET_CONSTANT = 0x2,
283 NFT_SET_INTERVAL = 0x4,
285 NFT_SET_TIMEOUT = 0x10,
287 NFT_SET_OBJECT = 0x40,
291 * enum nft_set_policies - set selection policy
293 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
294 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
296 enum nft_set_policies {
297 NFT_SET_POL_PERFORMANCE,
302 * enum nft_set_desc_attributes - set element description
304 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
305 * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED)
307 enum nft_set_desc_attributes {
308 NFTA_SET_DESC_UNSPEC,
310 NFTA_SET_DESC_CONCAT,
313 #define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1)
316 * enum nft_set_field_attributes - attributes of concatenated fields
318 * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32)
320 enum nft_set_field_attributes {
321 NFTA_SET_FIELD_UNSPEC,
325 #define NFTA_SET_FIELD_MAX (__NFTA_SET_FIELD_MAX - 1)
328 * enum nft_set_attributes - nf_tables set netlink attributes
330 * @NFTA_SET_TABLE: table name (NLA_STRING)
331 * @NFTA_SET_NAME: set name (NLA_STRING)
332 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
333 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
334 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
335 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
336 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
337 * @NFTA_SET_POLICY: selection policy (NLA_U32)
338 * @NFTA_SET_DESC: set description (NLA_NESTED)
339 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
340 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
341 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
342 * @NFTA_SET_USERDATA: user data (NLA_BINARY)
343 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*)
344 * @NFTA_SET_HANDLE: set handle (NLA_U64)
345 * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes)
347 enum nft_set_attributes {
360 NFTA_SET_GC_INTERVAL,
368 #define NFTA_SET_MAX (__NFTA_SET_MAX - 1)
371 * enum nft_set_elem_flags - nf_tables set element flags
373 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
375 enum nft_set_elem_flags {
376 NFT_SET_ELEM_INTERVAL_END = 0x1,
380 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
382 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
383 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
384 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
385 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
386 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
387 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
388 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
389 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING)
390 * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data)
392 enum nft_set_elem_attributes {
393 NFTA_SET_ELEM_UNSPEC,
397 NFTA_SET_ELEM_TIMEOUT,
398 NFTA_SET_ELEM_EXPIRATION,
399 NFTA_SET_ELEM_USERDATA,
402 NFTA_SET_ELEM_OBJREF,
403 NFTA_SET_ELEM_KEY_END,
406 #define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
409 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
411 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
412 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
413 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
414 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
416 enum nft_set_elem_list_attributes {
417 NFTA_SET_ELEM_LIST_UNSPEC,
418 NFTA_SET_ELEM_LIST_TABLE,
419 NFTA_SET_ELEM_LIST_SET,
420 NFTA_SET_ELEM_LIST_ELEMENTS,
421 NFTA_SET_ELEM_LIST_SET_ID,
422 __NFTA_SET_ELEM_LIST_MAX
424 #define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1)
427 * enum nft_data_types - nf_tables data types
429 * @NFT_DATA_VALUE: generic data
430 * @NFT_DATA_VERDICT: netfilter verdict
432 * The type of data is usually determined by the kernel directly and is not
433 * explicitly specified by userspace. The only difference are sets, where
434 * userspace specifies the key and mapping data types.
436 * The values 0xffffff00-0xffffffff are reserved for internally used types.
437 * The remaining range can be freely used by userspace to encode types, all
438 * values are equivalent to NFT_DATA_VALUE.
440 enum nft_data_types {
442 NFT_DATA_VERDICT = 0xffffff00U,
445 #define NFT_DATA_RESERVED_MASK 0xffffff00U
448 * enum nft_data_attributes - nf_tables data netlink attributes
450 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
451 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
453 enum nft_data_attributes {
459 #define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1)
461 /* Maximum length of a value */
462 #define NFT_DATA_VALUE_MAXLEN 64
465 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
467 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
468 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
470 enum nft_verdict_attributes {
476 #define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1)
479 * enum nft_expr_attributes - nf_tables expression netlink attributes
481 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
482 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
484 enum nft_expr_attributes {
490 #define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1)
493 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
495 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
496 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
498 enum nft_immediate_attributes {
499 NFTA_IMMEDIATE_UNSPEC,
504 #define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1)
507 * enum nft_bitwise_ops - nf_tables bitwise operations
509 * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and
510 * XOR boolean operations
511 * @NFT_BITWISE_LSHIFT: left-shift operation
512 * @NFT_BITWISE_RSHIFT: right-shift operation
514 enum nft_bitwise_ops {
521 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
523 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
524 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
525 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
526 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
527 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
528 * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops)
529 * @NFTA_BITWISE_DATA: argument for non-boolean operations
530 * (NLA_NESTED: nft_data_attributes)
532 * The bitwise expression supports boolean and shift operations. It implements
533 * the boolean operations by performing the following operation:
535 * dreg = (sreg & mask) ^ xor
537 * with these mask and xor values:
545 enum nft_bitwise_attributes {
556 #define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)
559 * enum nft_byteorder_ops - nf_tables byteorder operators
561 * @NFT_BYTEORDER_NTOH: network to host operator
562 * @NFT_BYTEORDER_HTON: host to network operator
564 enum nft_byteorder_ops {
570 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
572 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
573 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
574 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
575 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
576 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
578 enum nft_byteorder_attributes {
579 NFTA_BYTEORDER_UNSPEC,
587 #define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1)
590 * enum nft_cmp_ops - nf_tables relational operator
593 * @NFT_CMP_NEQ: not equal
594 * @NFT_CMP_LT: less than
595 * @NFT_CMP_LTE: less than or equal to
596 * @NFT_CMP_GT: greater than
597 * @NFT_CMP_GTE: greater than or equal to
609 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
611 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
612 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
613 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
615 enum nft_cmp_attributes {
622 #define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
625 * enum nft_range_ops - nf_tables range operator
627 * @NFT_RANGE_EQ: equal
628 * @NFT_RANGE_NEQ: not equal
636 * enum nft_range_attributes - nf_tables range expression netlink attributes
638 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
639 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_cmp_ops)
640 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
641 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
643 enum nft_range_attributes {
647 NFTA_RANGE_FROM_DATA,
651 #define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1)
653 enum nft_lookup_flags {
654 NFT_LOOKUP_F_INV = (1 << 0),
658 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
660 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
661 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
662 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
663 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
664 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
666 enum nft_lookup_attributes {
675 #define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1)
677 enum nft_dynset_ops {
679 NFT_DYNSET_OP_UPDATE,
680 NFT_DYNSET_OP_DELETE,
683 enum nft_dynset_flags {
684 NFT_DYNSET_F_INV = (1 << 0),
688 * enum nft_dynset_attributes - dynset expression attributes
690 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
691 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
692 * @NFTA_DYNSET_OP: operation (NLA_U32)
693 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
694 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
695 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
696 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
697 * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
699 enum nft_dynset_attributes {
701 NFTA_DYNSET_SET_NAME,
704 NFTA_DYNSET_SREG_KEY,
705 NFTA_DYNSET_SREG_DATA,
712 #define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1)
715 * enum nft_payload_bases - nf_tables payload expression offset bases
717 * @NFT_PAYLOAD_LL_HEADER: link layer header
718 * @NFT_PAYLOAD_NETWORK_HEADER: network header
719 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
721 enum nft_payload_bases {
722 NFT_PAYLOAD_LL_HEADER,
723 NFT_PAYLOAD_NETWORK_HEADER,
724 NFT_PAYLOAD_TRANSPORT_HEADER,
728 * enum nft_payload_csum_types - nf_tables payload expression checksum types
730 * @NFT_PAYLOAD_CSUM_NONE: no checksumming
731 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
733 enum nft_payload_csum_types {
734 NFT_PAYLOAD_CSUM_NONE,
735 NFT_PAYLOAD_CSUM_INET,
738 enum nft_payload_csum_flags {
739 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
743 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
745 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
746 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
747 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
748 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
749 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
750 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
751 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
752 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32)
754 enum nft_payload_attributes {
761 NFTA_PAYLOAD_CSUM_TYPE,
762 NFTA_PAYLOAD_CSUM_OFFSET,
763 NFTA_PAYLOAD_CSUM_FLAGS,
766 #define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1)
768 enum nft_exthdr_flags {
769 NFT_EXTHDR_F_PRESENT = (1 << 0),
773 * enum nft_exthdr_op - nf_tables match options
775 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers
776 * @NFT_EXTHDR_OP_TCP: match against tcp options
777 * @NFT_EXTHDR_OP_IPV4: match against ipv4 options
781 NFT_EXTHDR_OP_TCPOPT,
785 #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1)
788 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes
790 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
791 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
792 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
793 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
794 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32)
795 * @NFTA_EXTHDR_OP: option match type (NLA_U32)
796 * @NFTA_EXTHDR_SREG: option match type (NLA_U32)
798 enum nft_exthdr_attributes {
809 #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1)
812 * enum nft_meta_keys - nf_tables meta expression keys
814 * @NFT_META_LEN: packet length (skb->len)
815 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
816 * @NFT_META_PRIORITY: packet priority (skb->priority)
817 * @NFT_META_MARK: packet mark (skb->mark)
818 * @NFT_META_IIF: packet input interface index (dev->ifindex)
819 * @NFT_META_OIF: packet output interface index (dev->ifindex)
820 * @NFT_META_IIFNAME: packet input interface name (dev->name)
821 * @NFT_META_OIFNAME: packet output interface name (dev->name)
822 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
823 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
824 * @NFT_META_SKUID: originating socket UID (fsuid)
825 * @NFT_META_SKGID: originating socket GID (fsgid)
826 * @NFT_META_NFTRACE: packet nftrace bit
827 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
828 * @NFT_META_SECMARK: packet secmark (skb->secmark)
829 * @NFT_META_NFPROTO: netfilter protocol
830 * @NFT_META_L4PROTO: layer 4 protocol number
831 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
832 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
833 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
834 * @NFT_META_CPU: cpu id through smp_processor_id()
835 * @NFT_META_IIFGROUP: packet input interface group
836 * @NFT_META_OIFGROUP: packet output interface group
837 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
838 * @NFT_META_PRANDOM: a 32bit pseudo-random number
839 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
840 * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind)
841 * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind)
842 * @NFT_META_BRI_IIFPVID: packet input bridge port pvid
843 * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto
844 * @NFT_META_TIME_NS: time since epoch (in nanoseconds)
845 * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday)
846 * @NFT_META_TIME_HOUR: hour of day (in seconds)
847 * @NFT_META_SDIF: slave device interface index
848 * @NFT_META_SDIFNAME: slave device interface name
868 NFT_META_BRI_IIFNAME,
869 NFT_META_BRI_OIFNAME,
879 NFT_META_BRI_IIFPVID,
880 NFT_META_BRI_IIFVPROTO,
889 * enum nft_rt_keys - nf_tables routing expression keys
891 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid)
892 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4
893 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6
894 * @NFT_RT_TCPMSS: fetch current path tcp mss
895 * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL
905 #define NFT_RT_MAX (__NFT_RT_MAX - 1)
908 * enum nft_hash_types - nf_tables hash expression types
910 * @NFT_HASH_JENKINS: Jenkins Hash
911 * @NFT_HASH_SYM: Symmetric Hash
913 enum nft_hash_types {
919 * enum nft_hash_attributes - nf_tables hash expression netlink attributes
921 * @NFTA_HASH_SREG: source register (NLA_U32)
922 * @NFTA_HASH_DREG: destination register (NLA_U32)
923 * @NFTA_HASH_LEN: source data length (NLA_U32)
924 * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
925 * @NFTA_HASH_SEED: seed value (NLA_U32)
926 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
927 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types)
928 * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING)
929 * @NFTA_HASH_SET_ID: id of the map (NLA_U32)
931 enum nft_hash_attributes {
940 NFTA_HASH_SET_NAME, /* deprecated */
941 NFTA_HASH_SET_ID, /* deprecated */
944 #define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1)
947 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
949 * @NFTA_META_DREG: destination register (NLA_U32)
950 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
951 * @NFTA_META_SREG: source register (NLA_U32)
953 enum nft_meta_attributes {
960 #define NFTA_META_MAX (__NFTA_META_MAX - 1)
963 * enum nft_rt_attributes - nf_tables routing expression netlink attributes
965 * @NFTA_RT_DREG: destination register (NLA_U32)
966 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys)
968 enum nft_rt_attributes {
974 #define NFTA_RT_MAX (__NFTA_RT_MAX - 1)
977 * enum nft_socket_attributes - nf_tables socket expression netlink attributes
979 * @NFTA_SOCKET_KEY: socket key to match
980 * @NFTA_SOCKET_DREG: destination register
982 enum nft_socket_attributes {
988 #define NFTA_SOCKET_MAX (__NFTA_SOCKET_MAX - 1)
991 * enum nft_socket_keys - nf_tables socket expression keys
993 * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option
994 * @NFT_SOCKET_MARK: Value of the socket mark
996 enum nft_socket_keys {
997 NFT_SOCKET_TRANSPARENT,
1001 #define NFT_SOCKET_MAX (__NFT_SOCKET_MAX - 1)
1004 * enum nft_ct_keys - nf_tables ct expression keys
1006 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
1007 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
1008 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
1009 * @NFT_CT_MARK: conntrack mark value
1010 * @NFT_CT_SECMARK: conntrack secmark value
1011 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
1012 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
1013 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
1014 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated)
1015 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated)
1016 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
1017 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
1018 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
1019 * @NFT_CT_LABELS: conntrack labels
1020 * @NFT_CT_PKTS: conntrack packets
1021 * @NFT_CT_BYTES: conntrack bytes
1022 * @NFT_CT_AVGPKT: conntrack average bytes per packet
1023 * @NFT_CT_ZONE: conntrack zone
1024 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack
1025 * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address)
1026 * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address)
1027 * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address)
1028 * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address)
1029 * @NFT_CT_ID: conntrack id
1058 #define NFT_CT_MAX (__NFT_CT_MAX - 1)
1061 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
1063 * @NFTA_CT_DREG: destination register (NLA_U32)
1064 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
1065 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
1066 * @NFTA_CT_SREG: source register (NLA_U32)
1068 enum nft_ct_attributes {
1076 #define NFTA_CT_MAX (__NFTA_CT_MAX - 1)
1079 * enum nft_flow_attributes - ct offload expression attributes
1080 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
1082 enum nft_offload_attributes {
1084 NFTA_FLOW_TABLE_NAME,
1087 #define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1)
1089 enum nft_limit_type {
1094 enum nft_limit_flags {
1095 NFT_LIMIT_F_INV = (1 << 0),
1099 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
1101 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
1102 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
1103 * @NFTA_LIMIT_BURST: burst (NLA_U32)
1104 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
1105 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
1107 enum nft_limit_attributes {
1117 #define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1)
1119 enum nft_connlimit_flags {
1120 NFT_CONNLIMIT_F_INV = (1 << 0),
1124 * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes
1126 * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32)
1127 * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags)
1129 enum nft_connlimit_attributes {
1130 NFTA_CONNLIMIT_UNSPEC,
1131 NFTA_CONNLIMIT_COUNT,
1132 NFTA_CONNLIMIT_FLAGS,
1133 __NFTA_CONNLIMIT_MAX
1135 #define NFTA_CONNLIMIT_MAX (__NFTA_CONNLIMIT_MAX - 1)
1138 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
1140 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
1141 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
1143 enum nft_counter_attributes {
1144 NFTA_COUNTER_UNSPEC,
1146 NFTA_COUNTER_PACKETS,
1150 #define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1)
1153 * enum nft_log_attributes - nf_tables log expression netlink attributes
1155 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
1156 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
1157 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
1158 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
1159 * @NFTA_LOG_LEVEL: log level (NLA_U32)
1160 * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
1162 enum nft_log_attributes {
1167 NFTA_LOG_QTHRESHOLD,
1172 #define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1)
1175 * enum nft_log_level - nf_tables log levels
1177 * @NFT_LOGLEVEL_EMERG: system is unusable
1178 * @NFT_LOGLEVEL_ALERT: action must be taken immediately
1179 * @NFT_LOGLEVEL_CRIT: critical conditions
1180 * @NFT_LOGLEVEL_ERR: error conditions
1181 * @NFT_LOGLEVEL_WARNING: warning conditions
1182 * @NFT_LOGLEVEL_NOTICE: normal but significant condition
1183 * @NFT_LOGLEVEL_INFO: informational
1184 * @NFT_LOGLEVEL_DEBUG: debug-level messages
1185 * @NFT_LOGLEVEL_AUDIT: enabling audit logging
1187 enum nft_log_level {
1192 NFT_LOGLEVEL_WARNING,
1193 NFT_LOGLEVEL_NOTICE,
1199 #define NFT_LOGLEVEL_MAX (__NFT_LOGLEVEL_MAX - 1)
1202 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
1204 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
1205 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
1206 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
1207 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
1209 enum nft_queue_attributes {
1214 NFTA_QUEUE_SREG_QNUM,
1217 #define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1)
1219 #define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */
1220 #define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */
1221 #define NFT_QUEUE_FLAG_MASK 0x03
1223 enum nft_quota_flags {
1224 NFT_QUOTA_F_INV = (1 << 0),
1225 NFT_QUOTA_F_DEPLETED = (1 << 1),
1229 * enum nft_quota_attributes - nf_tables quota expression netlink attributes
1231 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
1232 * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
1233 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
1235 enum nft_quota_attributes {
1240 NFTA_QUOTA_CONSUMED,
1243 #define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1)
1246 * enum nft_secmark_attributes - nf_tables secmark object netlink attributes
1248 * @NFTA_SECMARK_CTX: security context (NLA_STRING)
1250 enum nft_secmark_attributes {
1251 NFTA_SECMARK_UNSPEC,
1255 #define NFTA_SECMARK_MAX (__NFTA_SECMARK_MAX - 1)
1257 /* Max security context length */
1258 #define NFT_SECMARK_CTX_MAXLEN 256
1261 * enum nft_reject_types - nf_tables reject expression reject types
1263 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
1264 * @NFT_REJECT_TCP_RST: reject using TCP RST
1265 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
1267 enum nft_reject_types {
1268 NFT_REJECT_ICMP_UNREACH,
1270 NFT_REJECT_ICMPX_UNREACH,
1274 * enum nft_reject_code - Generic reject codes for IPv4/IPv6
1276 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
1277 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
1278 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
1279 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
1281 * These codes are mapped to real ICMP and ICMPv6 codes.
1283 enum nft_reject_inet_code {
1284 NFT_REJECT_ICMPX_NO_ROUTE = 0,
1285 NFT_REJECT_ICMPX_PORT_UNREACH,
1286 NFT_REJECT_ICMPX_HOST_UNREACH,
1287 NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
1288 __NFT_REJECT_ICMPX_MAX
1290 #define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
1293 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
1295 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
1296 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
1298 enum nft_reject_attributes {
1301 NFTA_REJECT_ICMP_CODE,
1304 #define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1)
1307 * enum nft_nat_types - nf_tables nat expression NAT types
1309 * @NFT_NAT_SNAT: source NAT
1310 * @NFT_NAT_DNAT: destination NAT
1312 enum nft_nat_types {
1318 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
1320 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
1321 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
1322 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
1323 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
1324 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1325 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1326 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1328 enum nft_nat_attributes {
1332 NFTA_NAT_REG_ADDR_MIN,
1333 NFTA_NAT_REG_ADDR_MAX,
1334 NFTA_NAT_REG_PROTO_MIN,
1335 NFTA_NAT_REG_PROTO_MAX,
1339 #define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
1342 * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes
1344 * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers)
1345 * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers)
1346 * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers)
1348 enum nft_tproxy_attributes {
1351 NFTA_TPROXY_REG_ADDR,
1352 NFTA_TPROXY_REG_PORT,
1355 #define NFTA_TPROXY_MAX (__NFTA_TPROXY_MAX - 1)
1358 * enum nft_masq_attributes - nf_tables masquerade expression attributes
1360 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1361 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1362 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1364 enum nft_masq_attributes {
1367 NFTA_MASQ_REG_PROTO_MIN,
1368 NFTA_MASQ_REG_PROTO_MAX,
1371 #define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
1374 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
1376 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1377 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1378 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1380 enum nft_redir_attributes {
1382 NFTA_REDIR_REG_PROTO_MIN,
1383 NFTA_REDIR_REG_PROTO_MAX,
1387 #define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1)
1390 * enum nft_dup_attributes - nf_tables dup expression netlink attributes
1392 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
1393 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1395 enum nft_dup_attributes {
1401 #define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1)
1404 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
1406 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1407 * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register)
1408 * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto)
1410 enum nft_fwd_attributes {
1417 #define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1)
1420 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes
1422 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register)
1423 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING)
1424 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers)
1425 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING)
1426 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32)
1428 enum nft_objref_attributes {
1430 NFTA_OBJREF_IMM_TYPE,
1431 NFTA_OBJREF_IMM_NAME,
1432 NFTA_OBJREF_SET_SREG,
1433 NFTA_OBJREF_SET_NAME,
1437 #define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1)
1440 * enum nft_gen_attributes - nf_tables ruleset generation attributes
1442 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
1444 enum nft_gen_attributes {
1451 #define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1)
1454 * enum nft_fib_attributes - nf_tables fib expression netlink attributes
1456 * @NFTA_FIB_DREG: destination register (NLA_U32)
1457 * @NFTA_FIB_RESULT: desired result (NLA_U32)
1458 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32)
1460 * The FIB expression performs a route lookup according
1461 * to the packet data.
1463 enum nft_fib_attributes {
1470 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1)
1472 enum nft_fib_result {
1473 NFT_FIB_RESULT_UNSPEC,
1475 NFT_FIB_RESULT_OIFNAME,
1476 NFT_FIB_RESULT_ADDRTYPE,
1477 __NFT_FIB_RESULT_MAX
1479 #define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1)
1481 enum nft_fib_flags {
1482 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */
1483 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */
1484 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */
1485 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */
1486 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */
1487 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */
1490 enum nft_ct_helper_attributes {
1491 NFTA_CT_HELPER_UNSPEC,
1492 NFTA_CT_HELPER_NAME,
1493 NFTA_CT_HELPER_L3PROTO,
1494 NFTA_CT_HELPER_L4PROTO,
1495 __NFTA_CT_HELPER_MAX,
1497 #define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1)
1499 enum nft_ct_timeout_timeout_attributes {
1500 NFTA_CT_TIMEOUT_UNSPEC,
1501 NFTA_CT_TIMEOUT_L3PROTO,
1502 NFTA_CT_TIMEOUT_L4PROTO,
1503 NFTA_CT_TIMEOUT_DATA,
1504 __NFTA_CT_TIMEOUT_MAX,
1506 #define NFTA_CT_TIMEOUT_MAX (__NFTA_CT_TIMEOUT_MAX - 1)
1508 enum nft_ct_expectation_attributes {
1509 NFTA_CT_EXPECT_UNSPEC,
1510 NFTA_CT_EXPECT_L3PROTO,
1511 NFTA_CT_EXPECT_L4PROTO,
1512 NFTA_CT_EXPECT_DPORT,
1513 NFTA_CT_EXPECT_TIMEOUT,
1514 NFTA_CT_EXPECT_SIZE,
1515 __NFTA_CT_EXPECT_MAX,
1517 #define NFTA_CT_EXPECT_MAX (__NFTA_CT_EXPECT_MAX - 1)
1519 #define NFT_OBJECT_UNSPEC 0
1520 #define NFT_OBJECT_COUNTER 1
1521 #define NFT_OBJECT_QUOTA 2
1522 #define NFT_OBJECT_CT_HELPER 3
1523 #define NFT_OBJECT_LIMIT 4
1524 #define NFT_OBJECT_CONNLIMIT 5
1525 #define NFT_OBJECT_TUNNEL 6
1526 #define NFT_OBJECT_CT_TIMEOUT 7
1527 #define NFT_OBJECT_SECMARK 8
1528 #define NFT_OBJECT_CT_EXPECT 9
1529 #define NFT_OBJECT_SYNPROXY 10
1530 #define __NFT_OBJECT_MAX 11
1531 #define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1)
1534 * enum nft_object_attributes - nf_tables stateful object netlink attributes
1536 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING)
1537 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING)
1538 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32)
1539 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED)
1540 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32)
1541 * @NFTA_OBJ_HANDLE: object handle (NLA_U64)
1543 enum nft_object_attributes {
1554 #define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1)
1557 * enum nft_flowtable_flags - nf_tables flowtable flags
1559 * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled
1560 * @NFT_FLOWTABLE_COUNTER: enable flow counters
1562 enum nft_flowtable_flags {
1563 NFT_FLOWTABLE_HW_OFFLOAD = 0x1,
1564 NFT_FLOWTABLE_COUNTER = 0x2,
1565 NFT_FLOWTABLE_MASK = (NFT_FLOWTABLE_HW_OFFLOAD |
1566 NFT_FLOWTABLE_COUNTER)
1570 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
1572 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
1573 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
1574 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
1575 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
1576 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
1577 * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
1579 enum nft_flowtable_attributes {
1580 NFTA_FLOWTABLE_UNSPEC,
1581 NFTA_FLOWTABLE_TABLE,
1582 NFTA_FLOWTABLE_NAME,
1583 NFTA_FLOWTABLE_HOOK,
1585 NFTA_FLOWTABLE_HANDLE,
1587 NFTA_FLOWTABLE_FLAGS,
1588 __NFTA_FLOWTABLE_MAX
1590 #define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1)
1593 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
1595 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
1596 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
1597 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
1599 enum nft_flowtable_hook_attributes {
1600 NFTA_FLOWTABLE_HOOK_UNSPEC,
1601 NFTA_FLOWTABLE_HOOK_NUM,
1602 NFTA_FLOWTABLE_HOOK_PRIORITY,
1603 NFTA_FLOWTABLE_HOOK_DEVS,
1604 __NFTA_FLOWTABLE_HOOK_MAX
1606 #define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1)
1609 * enum nft_osf_attributes - nftables osf expression netlink attributes
1611 * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers)
1612 * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8)
1613 * @NFTA_OSF_FLAGS: flags (NLA_U32)
1615 enum nft_osf_attributes {
1622 #define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1)
1624 enum nft_osf_flags {
1625 NFT_OSF_F_VERSION = (1 << 0),
1629 * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes
1631 * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16)
1632 * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8)
1633 * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32)
1635 enum nft_synproxy_attributes {
1636 NFTA_SYNPROXY_UNSPEC,
1638 NFTA_SYNPROXY_WSCALE,
1639 NFTA_SYNPROXY_FLAGS,
1640 __NFTA_SYNPROXY_MAX,
1642 #define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1)
1645 * enum nft_device_attributes - nf_tables device netlink attributes
1647 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
1649 enum nft_devices_attributes {
1654 #define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1)
1657 * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes
1659 * @NFTA_XFRM_DREG: destination register (NLA_U32)
1660 * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32)
1661 * @NFTA_XFRM_DIR: direction (NLA_U8)
1662 * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32)
1664 enum nft_xfrm_attributes {
1672 #define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1)
1674 enum nft_xfrm_keys {
1675 NFT_XFRM_KEY_UNSPEC,
1676 NFT_XFRM_KEY_DADDR_IP4,
1677 NFT_XFRM_KEY_DADDR_IP6,
1678 NFT_XFRM_KEY_SADDR_IP4,
1679 NFT_XFRM_KEY_SADDR_IP6,
1684 #define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1)
1687 * enum nft_trace_attributes - nf_tables trace netlink attributes
1689 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
1690 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
1691 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
1692 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
1693 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
1694 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
1695 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
1696 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
1697 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
1698 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
1699 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
1700 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
1701 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
1702 * @NFTA_TRACE_MARK: nfmark (NLA_U32)
1703 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
1704 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
1706 enum nft_trace_attributes {
1710 NFTA_TRACE_RULE_HANDLE,
1714 NFTA_TRACE_LL_HEADER,
1715 NFTA_TRACE_NETWORK_HEADER,
1716 NFTA_TRACE_TRANSPORT_HEADER,
1727 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
1729 enum nft_trace_types {
1730 NFT_TRACETYPE_UNSPEC,
1731 NFT_TRACETYPE_POLICY,
1732 NFT_TRACETYPE_RETURN,
1736 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)
1739 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
1741 * @NFTA_NG_DREG: destination register (NLA_U32)
1742 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
1743 * @NFTA_NG_TYPE: operation type (NLA_U32)
1744 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
1745 * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING)
1746 * @NFTA_NG_SET_ID: id of the map (NLA_U32)
1748 enum nft_ng_attributes {
1754 NFTA_NG_SET_NAME, /* deprecated */
1755 NFTA_NG_SET_ID, /* deprecated */
1758 #define NFTA_NG_MAX (__NFTA_NG_MAX - 1)
1765 #define NFT_NG_MAX (__NFT_NG_MAX - 1)
1767 enum nft_tunnel_key_ip_attributes {
1768 NFTA_TUNNEL_KEY_IP_UNSPEC,
1769 NFTA_TUNNEL_KEY_IP_SRC,
1770 NFTA_TUNNEL_KEY_IP_DST,
1771 __NFTA_TUNNEL_KEY_IP_MAX
1773 #define NFTA_TUNNEL_KEY_IP_MAX (__NFTA_TUNNEL_KEY_IP_MAX - 1)
1775 enum nft_tunnel_ip6_attributes {
1776 NFTA_TUNNEL_KEY_IP6_UNSPEC,
1777 NFTA_TUNNEL_KEY_IP6_SRC,
1778 NFTA_TUNNEL_KEY_IP6_DST,
1779 NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
1780 __NFTA_TUNNEL_KEY_IP6_MAX
1782 #define NFTA_TUNNEL_KEY_IP6_MAX (__NFTA_TUNNEL_KEY_IP6_MAX - 1)
1784 enum nft_tunnel_opts_attributes {
1785 NFTA_TUNNEL_KEY_OPTS_UNSPEC,
1786 NFTA_TUNNEL_KEY_OPTS_VXLAN,
1787 NFTA_TUNNEL_KEY_OPTS_ERSPAN,
1788 NFTA_TUNNEL_KEY_OPTS_GENEVE,
1789 __NFTA_TUNNEL_KEY_OPTS_MAX
1791 #define NFTA_TUNNEL_KEY_OPTS_MAX (__NFTA_TUNNEL_KEY_OPTS_MAX - 1)
1793 enum nft_tunnel_opts_vxlan_attributes {
1794 NFTA_TUNNEL_KEY_VXLAN_UNSPEC,
1795 NFTA_TUNNEL_KEY_VXLAN_GBP,
1796 __NFTA_TUNNEL_KEY_VXLAN_MAX
1798 #define NFTA_TUNNEL_KEY_VXLAN_MAX (__NFTA_TUNNEL_KEY_VXLAN_MAX - 1)
1800 enum nft_tunnel_opts_erspan_attributes {
1801 NFTA_TUNNEL_KEY_ERSPAN_UNSPEC,
1802 NFTA_TUNNEL_KEY_ERSPAN_VERSION,
1803 NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
1804 NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
1805 NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
1806 __NFTA_TUNNEL_KEY_ERSPAN_MAX
1808 #define NFTA_TUNNEL_KEY_ERSPAN_MAX (__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1)
1810 enum nft_tunnel_opts_geneve_attributes {
1811 NFTA_TUNNEL_KEY_GENEVE_UNSPEC,
1812 NFTA_TUNNEL_KEY_GENEVE_CLASS,
1813 NFTA_TUNNEL_KEY_GENEVE_TYPE,
1814 NFTA_TUNNEL_KEY_GENEVE_DATA,
1815 __NFTA_TUNNEL_KEY_GENEVE_MAX
1817 #define NFTA_TUNNEL_KEY_GENEVE_MAX (__NFTA_TUNNEL_KEY_GENEVE_MAX - 1)
1819 enum nft_tunnel_flags {
1820 NFT_TUNNEL_F_ZERO_CSUM_TX = (1 << 0),
1821 NFT_TUNNEL_F_DONT_FRAGMENT = (1 << 1),
1822 NFT_TUNNEL_F_SEQ_NUMBER = (1 << 2),
1824 #define NFT_TUNNEL_F_MASK (NFT_TUNNEL_F_ZERO_CSUM_TX | \
1825 NFT_TUNNEL_F_DONT_FRAGMENT | \
1826 NFT_TUNNEL_F_SEQ_NUMBER)
1828 enum nft_tunnel_key_attributes {
1829 NFTA_TUNNEL_KEY_UNSPEC,
1832 NFTA_TUNNEL_KEY_IP6,
1833 NFTA_TUNNEL_KEY_FLAGS,
1834 NFTA_TUNNEL_KEY_TOS,
1835 NFTA_TUNNEL_KEY_TTL,
1836 NFTA_TUNNEL_KEY_SPORT,
1837 NFTA_TUNNEL_KEY_DPORT,
1838 NFTA_TUNNEL_KEY_OPTS,
1839 __NFTA_TUNNEL_KEY_MAX
1841 #define NFTA_TUNNEL_KEY_MAX (__NFTA_TUNNEL_KEY_MAX - 1)
1843 enum nft_tunnel_keys {
1848 #define NFT_TUNNEL_MAX (__NFT_TUNNEL_MAX - 1)
1850 enum nft_tunnel_mode {
1851 NFT_TUNNEL_MODE_NONE,
1854 __NFT_TUNNEL_MODE_MAX
1856 #define NFT_TUNNEL_MODE_MAX (__NFT_TUNNEL_MODE_MAX - 1)
1858 enum nft_tunnel_attributes {
1865 #define NFTA_TUNNEL_MAX (__NFTA_TUNNEL_MAX - 1)
1867 #endif /* _LINUX_NF_TABLES_H */