1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _LINUX_NF_TABLES_H
3#define _LINUX_NF_TABLES_H
4
5#define NFT_NAME_MAXLEN 256
6#define NFT_TABLE_MAXNAMELEN NFT_NAME_MAXLEN
7#define NFT_CHAIN_MAXNAMELEN NFT_NAME_MAXLEN
8#define NFT_SET_MAXNAMELEN NFT_NAME_MAXLEN
9#define NFT_OBJ_MAXNAMELEN NFT_NAME_MAXLEN
10#define NFT_USERDATA_MAXLEN 256
11#define NFT_OSF_MAXGENRELEN 16
12
13/**
14 * enum nft_registers - nf_tables registers
15 *
16 * nf_tables used to have five registers: a verdict register and four data
17 * registers of size 16. The data registers have been changed to 16 registers
18 * of size 4. For compatibility reasons, the NFT_REG_[1-4] registers still
19 * map to areas of size 16, the 4 byte registers are addressed using
20 * NFT_REG32_00 - NFT_REG32_15.
21 */
22enum nft_registers {
23 NFT_REG_VERDICT,
24 NFT_REG_1,
25 NFT_REG_2,
26 NFT_REG_3,
27 NFT_REG_4,
28 __NFT_REG_MAX,
29
30 NFT_REG32_00 = 8,
31 NFT_REG32_01,
32 NFT_REG32_02,
33 NFT_REG32_03,
34 NFT_REG32_04,
35 NFT_REG32_05,
36 NFT_REG32_06,
37 NFT_REG32_07,
38 NFT_REG32_08,
39 NFT_REG32_09,
40 NFT_REG32_10,
41 NFT_REG32_11,
42 NFT_REG32_12,
43 NFT_REG32_13,
44 NFT_REG32_14,
45 NFT_REG32_15,
46};
47#define NFT_REG_MAX (__NFT_REG_MAX - 1)
48
49#define NFT_REG_SIZE 16
50#define NFT_REG32_SIZE 4
51#define NFT_REG32_COUNT (NFT_REG32_15 - NFT_REG32_00 + 1)
52
53/**
54 * enum nft_verdicts - nf_tables internal verdicts
55 *
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
61 *
62 * The nf_tables verdicts share their numeric space with the netfilter verdicts.
63 */
64enum nft_verdicts {
65 NFT_CONTINUE = -1,
66 NFT_BREAK = -2,
67 NFT_JUMP = -3,
68 NFT_GOTO = -4,
69 NFT_RETURN = -5,
70};
71
72/**
73 * enum nf_tables_msg_types - nf_tables netlink message types
74 *
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)
100 * @NFT_MSG_GETRULE_RESET: get rules and reset stateful expressions (enum nft_obj_attributes)
101 * @NFT_MSG_DESTROYTABLE: destroy a table (enum nft_table_attributes)
102 * @NFT_MSG_DESTROYCHAIN: destroy a chain (enum nft_chain_attributes)
103 * @NFT_MSG_DESTROYRULE: destroy a rule (enum nft_rule_attributes)
104 * @NFT_MSG_DESTROYSET: destroy a set (enum nft_set_attributes)
105 * @NFT_MSG_DESTROYSETELEM: destroy a set element (enum nft_set_elem_attributes)
106 * @NFT_MSG_DESTROYOBJ: destroy a stateful object (enum nft_object_attributes)
107 * @NFT_MSG_DESTROYFLOWTABLE: destroy flow table (enum nft_flowtable_attributes)
108 * @NFT_MSG_GETSETELEM_RESET: get set elements and reset attached stateful expressions (enum nft_set_elem_attributes)
109 */
110enum nf_tables_msg_types {
111 NFT_MSG_NEWTABLE,
112 NFT_MSG_GETTABLE,
113 NFT_MSG_DELTABLE,
114 NFT_MSG_NEWCHAIN,
115 NFT_MSG_GETCHAIN,
116 NFT_MSG_DELCHAIN,
117 NFT_MSG_NEWRULE,
118 NFT_MSG_GETRULE,
119 NFT_MSG_DELRULE,
120 NFT_MSG_NEWSET,
121 NFT_MSG_GETSET,
122 NFT_MSG_DELSET,
123 NFT_MSG_NEWSETELEM,
124 NFT_MSG_GETSETELEM,
125 NFT_MSG_DELSETELEM,
126 NFT_MSG_NEWGEN,
127 NFT_MSG_GETGEN,
128 NFT_MSG_TRACE,
129 NFT_MSG_NEWOBJ,
130 NFT_MSG_GETOBJ,
131 NFT_MSG_DELOBJ,
132 NFT_MSG_GETOBJ_RESET,
133 NFT_MSG_NEWFLOWTABLE,
134 NFT_MSG_GETFLOWTABLE,
135 NFT_MSG_DELFLOWTABLE,
136 NFT_MSG_GETRULE_RESET,
137 NFT_MSG_DESTROYTABLE,
138 NFT_MSG_DESTROYCHAIN,
139 NFT_MSG_DESTROYRULE,
140 NFT_MSG_DESTROYSET,
141 NFT_MSG_DESTROYSETELEM,
142 NFT_MSG_DESTROYOBJ,
143 NFT_MSG_DESTROYFLOWTABLE,
144 NFT_MSG_GETSETELEM_RESET,
145 NFT_MSG_MAX,
146};
147
148/**
149 * enum nft_list_attributes - nf_tables generic list netlink attributes
150 *
151 * @NFTA_LIST_ELEM: list element (NLA_NESTED)
152 */
153enum nft_list_attributes {
154 NFTA_LIST_UNSPEC,
155 NFTA_LIST_ELEM,
156 __NFTA_LIST_MAX
157};
158#define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1)
159
160/**
161 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes
162 *
163 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
164 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
165 * @NFTA_HOOK_DEV: netdevice name (NLA_STRING)
166 * @NFTA_HOOK_DEVS: list of netdevices (NLA_NESTED)
167 */
168enum nft_hook_attributes {
169 NFTA_HOOK_UNSPEC,
170 NFTA_HOOK_HOOKNUM,
171 NFTA_HOOK_PRIORITY,
172 NFTA_HOOK_DEV,
173 NFTA_HOOK_DEVS,
174 __NFTA_HOOK_MAX
175};
176#define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1)
177
178/**
179 * enum nft_table_flags - nf_tables table flags
180 *
181 * @NFT_TABLE_F_DORMANT: this table is not active
182 */
183enum nft_table_flags {
184 NFT_TABLE_F_DORMANT = 0x1,
185 NFT_TABLE_F_OWNER = 0x2,
186};
187#define NFT_TABLE_F_MASK (NFT_TABLE_F_DORMANT | \
188 NFT_TABLE_F_OWNER)
189
190/**
191 * enum nft_table_attributes - nf_tables table netlink attributes
192 *
193 * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
194 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
195 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32)
196 * @NFTA_TABLE_USERDATA: user data (NLA_BINARY)
197 * @NFTA_TABLE_OWNER: owner of this table through netlink portID (NLA_U32)
198 */
199enum nft_table_attributes {
200 NFTA_TABLE_UNSPEC,
201 NFTA_TABLE_NAME,
202 NFTA_TABLE_FLAGS,
203 NFTA_TABLE_USE,
204 NFTA_TABLE_HANDLE,
205 NFTA_TABLE_PAD,
206 NFTA_TABLE_USERDATA,
207 NFTA_TABLE_OWNER,
208 __NFTA_TABLE_MAX
209};
210#define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1)
211
212enum nft_chain_flags {
213 NFT_CHAIN_BASE = (1 << 0),
214 NFT_CHAIN_HW_OFFLOAD = (1 << 1),
215 NFT_CHAIN_BINDING = (1 << 2),
216};
217#define NFT_CHAIN_FLAGS (NFT_CHAIN_BASE | \
218 NFT_CHAIN_HW_OFFLOAD | \
219 NFT_CHAIN_BINDING)
220
221/**
222 * enum nft_chain_attributes - nf_tables chain netlink attributes
223 *
224 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
225 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
226 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
227 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
228 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
229 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
230 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
231 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
232 * @NFTA_CHAIN_FLAGS: chain flags
233 * @NFTA_CHAIN_ID: uniquely identifies a chain in a transaction (NLA_U32)
234 * @NFTA_CHAIN_USERDATA: user data (NLA_BINARY)
235 */
236enum nft_chain_attributes {
237 NFTA_CHAIN_UNSPEC,
238 NFTA_CHAIN_TABLE,
239 NFTA_CHAIN_HANDLE,
240 NFTA_CHAIN_NAME,
241 NFTA_CHAIN_HOOK,
242 NFTA_CHAIN_POLICY,
243 NFTA_CHAIN_USE,
244 NFTA_CHAIN_TYPE,
245 NFTA_CHAIN_COUNTERS,
246 NFTA_CHAIN_PAD,
247 NFTA_CHAIN_FLAGS,
248 NFTA_CHAIN_ID,
249 NFTA_CHAIN_USERDATA,
250 __NFTA_CHAIN_MAX
251};
252#define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1)
253
254/**
255 * enum nft_rule_attributes - nf_tables rule netlink attributes
256 *
257 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
258 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
259 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
260 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
261 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
262 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
263 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
264 * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32)
265 * @NFTA_RULE_POSITION_ID: transaction unique identifier of the previous rule (NLA_U32)
266 * @NFTA_RULE_CHAIN_ID: add the rule to chain by ID, alternative to @NFTA_RULE_CHAIN (NLA_U32)
267 */
268enum nft_rule_attributes {
269 NFTA_RULE_UNSPEC,
270 NFTA_RULE_TABLE,
271 NFTA_RULE_CHAIN,
272 NFTA_RULE_HANDLE,
273 NFTA_RULE_EXPRESSIONS,
274 NFTA_RULE_COMPAT,
275 NFTA_RULE_POSITION,
276 NFTA_RULE_USERDATA,
277 NFTA_RULE_PAD,
278 NFTA_RULE_ID,
279 NFTA_RULE_POSITION_ID,
280 NFTA_RULE_CHAIN_ID,
281 __NFTA_RULE_MAX
282};
283#define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1)
284
285/**
286 * enum nft_rule_compat_flags - nf_tables rule compat flags
287 *
288 * @NFT_RULE_COMPAT_F_INV: invert the check result
289 */
290enum nft_rule_compat_flags {
291 NFT_RULE_COMPAT_F_INV = (1 << 1),
292 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV,
293};
294
295/**
296 * enum nft_rule_compat_attributes - nf_tables rule compat attributes
297 *
298 * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32)
299 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
300 */
301enum nft_rule_compat_attributes {
302 NFTA_RULE_COMPAT_UNSPEC,
303 NFTA_RULE_COMPAT_PROTO,
304 NFTA_RULE_COMPAT_FLAGS,
305 __NFTA_RULE_COMPAT_MAX
306};
307#define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1)
308
309/**
310 * enum nft_set_flags - nf_tables set flags
311 *
312 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
313 * @NFT_SET_CONSTANT: set contents may not change while bound
314 * @NFT_SET_INTERVAL: set contains intervals
315 * @NFT_SET_MAP: set is used as a dictionary
316 * @NFT_SET_TIMEOUT: set uses timeouts
317 * @NFT_SET_EVAL: set can be updated from the evaluation path
318 * @NFT_SET_OBJECT: set contains stateful objects
319 * @NFT_SET_CONCAT: set contains a concatenation
320 * @NFT_SET_EXPR: set contains expressions
321 */
322enum nft_set_flags {
323 NFT_SET_ANONYMOUS = 0x1,
324 NFT_SET_CONSTANT = 0x2,
325 NFT_SET_INTERVAL = 0x4,
326 NFT_SET_MAP = 0x8,
327 NFT_SET_TIMEOUT = 0x10,
328 NFT_SET_EVAL = 0x20,
329 NFT_SET_OBJECT = 0x40,
330 NFT_SET_CONCAT = 0x80,
331 NFT_SET_EXPR = 0x100,
332};
333
334/**
335 * enum nft_set_policies - set selection policy
336 *
337 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
338 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
339 */
340enum nft_set_policies {
341 NFT_SET_POL_PERFORMANCE,
342 NFT_SET_POL_MEMORY,
343};
344
345/**
346 * enum nft_set_desc_attributes - set element description
347 *
348 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
349 * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED)
350 */
351enum nft_set_desc_attributes {
352 NFTA_SET_DESC_UNSPEC,
353 NFTA_SET_DESC_SIZE,
354 NFTA_SET_DESC_CONCAT,
355 __NFTA_SET_DESC_MAX
356};
357#define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1)
358
359/**
360 * enum nft_set_field_attributes - attributes of concatenated fields
361 *
362 * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32)
363 */
364enum nft_set_field_attributes {
365 NFTA_SET_FIELD_UNSPEC,
366 NFTA_SET_FIELD_LEN,
367 __NFTA_SET_FIELD_MAX
368};
369#define NFTA_SET_FIELD_MAX (__NFTA_SET_FIELD_MAX - 1)
370
371/**
372 * enum nft_set_attributes - nf_tables set netlink attributes
373 *
374 * @NFTA_SET_TABLE: table name (NLA_STRING)
375 * @NFTA_SET_NAME: set name (NLA_STRING)
376 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
377 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
378 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
379 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
380 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
381 * @NFTA_SET_POLICY: selection policy (NLA_U32)
382 * @NFTA_SET_DESC: set description (NLA_NESTED)
383 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
384 * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
385 * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
386 * @NFTA_SET_USERDATA: user data (NLA_BINARY)
387 * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*)
388 * @NFTA_SET_HANDLE: set handle (NLA_U64)
389 * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes)
390 * @NFTA_SET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
391 */
392enum nft_set_attributes {
393 NFTA_SET_UNSPEC,
394 NFTA_SET_TABLE,
395 NFTA_SET_NAME,
396 NFTA_SET_FLAGS,
397 NFTA_SET_KEY_TYPE,
398 NFTA_SET_KEY_LEN,
399 NFTA_SET_DATA_TYPE,
400 NFTA_SET_DATA_LEN,
401 NFTA_SET_POLICY,
402 NFTA_SET_DESC,
403 NFTA_SET_ID,
404 NFTA_SET_TIMEOUT,
405 NFTA_SET_GC_INTERVAL,
406 NFTA_SET_USERDATA,
407 NFTA_SET_PAD,
408 NFTA_SET_OBJ_TYPE,
409 NFTA_SET_HANDLE,
410 NFTA_SET_EXPR,
411 NFTA_SET_EXPRESSIONS,
412 __NFTA_SET_MAX
413};
414#define NFTA_SET_MAX (__NFTA_SET_MAX - 1)
415
416/**
417 * enum nft_set_elem_flags - nf_tables set element flags
418 *
419 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
420 * @NFT_SET_ELEM_CATCHALL: special catch-all element
421 */
422enum nft_set_elem_flags {
423 NFT_SET_ELEM_INTERVAL_END = 0x1,
424 NFT_SET_ELEM_CATCHALL = 0x2,
425};
426
427/**
428 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
429 *
430 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
431 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
432 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
433 * @NFTA_SET_ELEM_TIMEOUT: timeout value (NLA_U64)
434 * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
435 * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
436 * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
437 * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING)
438 * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data)
439 * @NFTA_SET_ELEM_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
440 */
441enum nft_set_elem_attributes {
442 NFTA_SET_ELEM_UNSPEC,
443 NFTA_SET_ELEM_KEY,
444 NFTA_SET_ELEM_DATA,
445 NFTA_SET_ELEM_FLAGS,
446 NFTA_SET_ELEM_TIMEOUT,
447 NFTA_SET_ELEM_EXPIRATION,
448 NFTA_SET_ELEM_USERDATA,
449 NFTA_SET_ELEM_EXPR,
450 NFTA_SET_ELEM_PAD,
451 NFTA_SET_ELEM_OBJREF,
452 NFTA_SET_ELEM_KEY_END,
453 NFTA_SET_ELEM_EXPRESSIONS,
454 __NFTA_SET_ELEM_MAX
455};
456#define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
457
458/**
459 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
460 *
461 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
462 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
463 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
464 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
465 */
466enum nft_set_elem_list_attributes {
467 NFTA_SET_ELEM_LIST_UNSPEC,
468 NFTA_SET_ELEM_LIST_TABLE,
469 NFTA_SET_ELEM_LIST_SET,
470 NFTA_SET_ELEM_LIST_ELEMENTS,
471 NFTA_SET_ELEM_LIST_SET_ID,
472 __NFTA_SET_ELEM_LIST_MAX
473};
474#define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1)
475
476/**
477 * enum nft_data_types - nf_tables data types
478 *
479 * @NFT_DATA_VALUE: generic data
480 * @NFT_DATA_VERDICT: netfilter verdict
481 *
482 * The type of data is usually determined by the kernel directly and is not
483 * explicitly specified by userspace. The only difference are sets, where
484 * userspace specifies the key and mapping data types.
485 *
486 * The values 0xffffff00-0xffffffff are reserved for internally used types.
487 * The remaining range can be freely used by userspace to encode types, all
488 * values are equivalent to NFT_DATA_VALUE.
489 */
490enum nft_data_types {
491 NFT_DATA_VALUE,
492 NFT_DATA_VERDICT = 0xffffff00U,
493};
494
495#define NFT_DATA_RESERVED_MASK 0xffffff00U
496
497/**
498 * enum nft_data_attributes - nf_tables data netlink attributes
499 *
500 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
501 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
502 */
503enum nft_data_attributes {
504 NFTA_DATA_UNSPEC,
505 NFTA_DATA_VALUE,
506 NFTA_DATA_VERDICT,
507 __NFTA_DATA_MAX
508};
509#define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1)
510
511/* Maximum length of a value */
512#define NFT_DATA_VALUE_MAXLEN 64
513
514/**
515 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
516 *
517 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
518 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
519 * @NFTA_VERDICT_CHAIN_ID: jump target chain ID (NLA_U32)
520 */
521enum nft_verdict_attributes {
522 NFTA_VERDICT_UNSPEC,
523 NFTA_VERDICT_CODE,
524 NFTA_VERDICT_CHAIN,
525 NFTA_VERDICT_CHAIN_ID,
526 __NFTA_VERDICT_MAX
527};
528#define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1)
529
530/**
531 * enum nft_expr_attributes - nf_tables expression netlink attributes
532 *
533 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
534 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
535 */
536enum nft_expr_attributes {
537 NFTA_EXPR_UNSPEC,
538 NFTA_EXPR_NAME,
539 NFTA_EXPR_DATA,
540 __NFTA_EXPR_MAX
541};
542#define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1)
543
544/**
545 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
546 *
547 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
548 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
549 */
550enum nft_immediate_attributes {
551 NFTA_IMMEDIATE_UNSPEC,
552 NFTA_IMMEDIATE_DREG,
553 NFTA_IMMEDIATE_DATA,
554 __NFTA_IMMEDIATE_MAX
555};
556#define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1)
557
558/**
559 * enum nft_bitwise_ops - nf_tables bitwise operations
560 *
561 * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and
562 * XOR boolean operations
563 * @NFT_BITWISE_LSHIFT: left-shift operation
564 * @NFT_BITWISE_RSHIFT: right-shift operation
565 */
566enum nft_bitwise_ops {
567 NFT_BITWISE_BOOL,
568 NFT_BITWISE_LSHIFT,
569 NFT_BITWISE_RSHIFT,
570};
571
572/**
573 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
574 *
575 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
576 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
577 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
578 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
579 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
580 * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops)
581 * @NFTA_BITWISE_DATA: argument for non-boolean operations
582 * (NLA_NESTED: nft_data_attributes)
583 *
584 * The bitwise expression supports boolean and shift operations. It implements
585 * the boolean operations by performing the following operation:
586 *
587 * dreg = (sreg & mask) ^ xor
588 *
589 * with these mask and xor values:
590 *
591 * mask xor
592 * NOT: 1 1
593 * OR: ~x x
594 * XOR: 1 x
595 * AND: x 0
596 */
597enum nft_bitwise_attributes {
598 NFTA_BITWISE_UNSPEC,
599 NFTA_BITWISE_SREG,
600 NFTA_BITWISE_DREG,
601 NFTA_BITWISE_LEN,
602 NFTA_BITWISE_MASK,
603 NFTA_BITWISE_XOR,
604 NFTA_BITWISE_OP,
605 NFTA_BITWISE_DATA,
606 __NFTA_BITWISE_MAX
607};
608#define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)
609
610/**
611 * enum nft_byteorder_ops - nf_tables byteorder operators
612 *
613 * @NFT_BYTEORDER_NTOH: network to host operator
614 * @NFT_BYTEORDER_HTON: host to network operator
615 */
616enum nft_byteorder_ops {
617 NFT_BYTEORDER_NTOH,
618 NFT_BYTEORDER_HTON,
619};
620
621/**
622 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
623 *
624 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
625 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
626 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
627 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
628 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
629 */
630enum nft_byteorder_attributes {
631 NFTA_BYTEORDER_UNSPEC,
632 NFTA_BYTEORDER_SREG,
633 NFTA_BYTEORDER_DREG,
634 NFTA_BYTEORDER_OP,
635 NFTA_BYTEORDER_LEN,
636 NFTA_BYTEORDER_SIZE,
637 __NFTA_BYTEORDER_MAX
638};
639#define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1)
640
641/**
642 * enum nft_cmp_ops - nf_tables relational operator
643 *
644 * @NFT_CMP_EQ: equal
645 * @NFT_CMP_NEQ: not equal
646 * @NFT_CMP_LT: less than
647 * @NFT_CMP_LTE: less than or equal to
648 * @NFT_CMP_GT: greater than
649 * @NFT_CMP_GTE: greater than or equal to
650 */
651enum nft_cmp_ops {
652 NFT_CMP_EQ,
653 NFT_CMP_NEQ,
654 NFT_CMP_LT,
655 NFT_CMP_LTE,
656 NFT_CMP_GT,
657 NFT_CMP_GTE,
658};
659
660/**
661 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
662 *
663 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
664 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
665 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
666 */
667enum nft_cmp_attributes {
668 NFTA_CMP_UNSPEC,
669 NFTA_CMP_SREG,
670 NFTA_CMP_OP,
671 NFTA_CMP_DATA,
672 __NFTA_CMP_MAX
673};
674#define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
675
676/**
677 * enum nft_range_ops - nf_tables range operator
678 *
679 * @NFT_RANGE_EQ: equal
680 * @NFT_RANGE_NEQ: not equal
681 */
682enum nft_range_ops {
683 NFT_RANGE_EQ,
684 NFT_RANGE_NEQ,
685};
686
687/**
688 * enum nft_range_attributes - nf_tables range expression netlink attributes
689 *
690 * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
691 * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_range_ops)
692 * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
693 * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
694 */
695enum nft_range_attributes {
696 NFTA_RANGE_UNSPEC,
697 NFTA_RANGE_SREG,
698 NFTA_RANGE_OP,
699 NFTA_RANGE_FROM_DATA,
700 NFTA_RANGE_TO_DATA,
701 __NFTA_RANGE_MAX
702};
703#define NFTA_RANGE_MAX (__NFTA_RANGE_MAX - 1)
704
705enum nft_lookup_flags {
706 NFT_LOOKUP_F_INV = (1 << 0),
707};
708
709/**
710 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
711 *
712 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
713 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
714 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
715 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
716 * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
717 */
718enum nft_lookup_attributes {
719 NFTA_LOOKUP_UNSPEC,
720 NFTA_LOOKUP_SET,
721 NFTA_LOOKUP_SREG,
722 NFTA_LOOKUP_DREG,
723 NFTA_LOOKUP_SET_ID,
724 NFTA_LOOKUP_FLAGS,
725 __NFTA_LOOKUP_MAX
726};
727#define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1)
728
729enum nft_dynset_ops {
730 NFT_DYNSET_OP_ADD,
731 NFT_DYNSET_OP_UPDATE,
732 NFT_DYNSET_OP_DELETE,
733};
734
735enum nft_dynset_flags {
736 NFT_DYNSET_F_INV = (1 << 0),
737 NFT_DYNSET_F_EXPR = (1 << 1),
738};
739
740/**
741 * enum nft_dynset_attributes - dynset expression attributes
742 *
743 * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
744 * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
745 * @NFTA_DYNSET_OP: operation (NLA_U32)
746 * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
747 * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
748 * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
749 * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
750 * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
751 * @NFTA_DYNSET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
752 */
753enum nft_dynset_attributes {
754 NFTA_DYNSET_UNSPEC,
755 NFTA_DYNSET_SET_NAME,
756 NFTA_DYNSET_SET_ID,
757 NFTA_DYNSET_OP,
758 NFTA_DYNSET_SREG_KEY,
759 NFTA_DYNSET_SREG_DATA,
760 NFTA_DYNSET_TIMEOUT,
761 NFTA_DYNSET_EXPR,
762 NFTA_DYNSET_PAD,
763 NFTA_DYNSET_FLAGS,
764 NFTA_DYNSET_EXPRESSIONS,
765 __NFTA_DYNSET_MAX,
766};
767#define NFTA_DYNSET_MAX (__NFTA_DYNSET_MAX - 1)
768
769/**
770 * enum nft_payload_bases - nf_tables payload expression offset bases
771 *
772 * @NFT_PAYLOAD_LL_HEADER: link layer header
773 * @NFT_PAYLOAD_NETWORK_HEADER: network header
774 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
775 * @NFT_PAYLOAD_INNER_HEADER: inner header / payload
776 */
777enum nft_payload_bases {
778 NFT_PAYLOAD_LL_HEADER,
779 NFT_PAYLOAD_NETWORK_HEADER,
780 NFT_PAYLOAD_TRANSPORT_HEADER,
781 NFT_PAYLOAD_INNER_HEADER,
782 NFT_PAYLOAD_TUN_HEADER,
783};
784
785/**
786 * enum nft_payload_csum_types - nf_tables payload expression checksum types
787 *
788 * @NFT_PAYLOAD_CSUM_NONE: no checksumming
789 * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
790 * @NFT_PAYLOAD_CSUM_SCTP: CRC-32c, for use in SCTP header (RFC 3309)
791 */
792enum nft_payload_csum_types {
793 NFT_PAYLOAD_CSUM_NONE,
794 NFT_PAYLOAD_CSUM_INET,
795 NFT_PAYLOAD_CSUM_SCTP,
796};
797
798enum nft_payload_csum_flags {
799 NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
800};
801
802enum nft_inner_type {
803 NFT_INNER_UNSPEC = 0,
804 NFT_INNER_VXLAN,
805 NFT_INNER_GENEVE,
806};
807
808enum nft_inner_flags {
809 NFT_INNER_HDRSIZE = (1 << 0),
810 NFT_INNER_LL = (1 << 1),
811 NFT_INNER_NH = (1 << 2),
812 NFT_INNER_TH = (1 << 3),
813};
814#define NFT_INNER_MASK (NFT_INNER_HDRSIZE | NFT_INNER_LL | \
815 NFT_INNER_NH | NFT_INNER_TH)
816
817enum nft_inner_attributes {
818 NFTA_INNER_UNSPEC,
819 NFTA_INNER_NUM,
820 NFTA_INNER_TYPE,
821 NFTA_INNER_FLAGS,
822 NFTA_INNER_HDRSIZE,
823 NFTA_INNER_EXPR,
824 __NFTA_INNER_MAX
825};
826#define NFTA_INNER_MAX (__NFTA_INNER_MAX - 1)
827
828/**
829 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
830 *
831 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
832 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
833 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
834 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
835 * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
836 * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
837 * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
838 * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32)
839 */
840enum nft_payload_attributes {
841 NFTA_PAYLOAD_UNSPEC,
842 NFTA_PAYLOAD_DREG,
843 NFTA_PAYLOAD_BASE,
844 NFTA_PAYLOAD_OFFSET,
845 NFTA_PAYLOAD_LEN,
846 NFTA_PAYLOAD_SREG,
847 NFTA_PAYLOAD_CSUM_TYPE,
848 NFTA_PAYLOAD_CSUM_OFFSET,
849 NFTA_PAYLOAD_CSUM_FLAGS,
850 __NFTA_PAYLOAD_MAX
851};
852#define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1)
853
854enum nft_exthdr_flags {
855 NFT_EXTHDR_F_PRESENT = (1 << 0),
856};
857
858/**
859 * enum nft_exthdr_op - nf_tables match options
860 *
861 * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers
862 * @NFT_EXTHDR_OP_TCP: match against tcp options
863 * @NFT_EXTHDR_OP_IPV4: match against ipv4 options
864 * @NFT_EXTHDR_OP_SCTP: match against sctp chunks
865 * @NFT_EXTHDR_OP_DCCP: match against dccp otions
866 */
867enum nft_exthdr_op {
868 NFT_EXTHDR_OP_IPV6,
869 NFT_EXTHDR_OP_TCPOPT,
870 NFT_EXTHDR_OP_IPV4,
871 NFT_EXTHDR_OP_SCTP,
872 NFT_EXTHDR_OP_DCCP,
873 __NFT_EXTHDR_OP_MAX
874};
875#define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1)
876
877/**
878 * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes
879 *
880 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
881 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
882 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
883 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
884 * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32)
885 * @NFTA_EXTHDR_OP: option match type (NLA_U32)
886 * @NFTA_EXTHDR_SREG: source register (NLA_U32: nft_registers)
887 */
888enum nft_exthdr_attributes {
889 NFTA_EXTHDR_UNSPEC,
890 NFTA_EXTHDR_DREG,
891 NFTA_EXTHDR_TYPE,
892 NFTA_EXTHDR_OFFSET,
893 NFTA_EXTHDR_LEN,
894 NFTA_EXTHDR_FLAGS,
895 NFTA_EXTHDR_OP,
896 NFTA_EXTHDR_SREG,
897 __NFTA_EXTHDR_MAX
898};
899#define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1)
900
901/**
902 * enum nft_meta_keys - nf_tables meta expression keys
903 *
904 * @NFT_META_LEN: packet length (skb->len)
905 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
906 * @NFT_META_PRIORITY: packet priority (skb->priority)
907 * @NFT_META_MARK: packet mark (skb->mark)
908 * @NFT_META_IIF: packet input interface index (dev->ifindex)
909 * @NFT_META_OIF: packet output interface index (dev->ifindex)
910 * @NFT_META_IIFNAME: packet input interface name (dev->name)
911 * @NFT_META_OIFNAME: packet output interface name (dev->name)
912 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
913 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
914 * @NFT_META_SKUID: originating socket UID (fsuid)
915 * @NFT_META_SKGID: originating socket GID (fsgid)
916 * @NFT_META_NFTRACE: packet nftrace bit
917 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
918 * @NFT_META_SECMARK: packet secmark (skb->secmark)
919 * @NFT_META_NFPROTO: netfilter protocol
920 * @NFT_META_L4PROTO: layer 4 protocol number
921 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
922 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
923 * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
924 * @NFT_META_CPU: cpu id through smp_processor_id()
925 * @NFT_META_IIFGROUP: packet input interface group
926 * @NFT_META_OIFGROUP: packet output interface group
927 * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
928 * @NFT_META_PRANDOM: a 32bit pseudo-random number
929 * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
930 * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind)
931 * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind)
932 * @NFT_META_BRI_IIFPVID: packet input bridge port pvid
933 * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto
934 * @NFT_META_TIME_NS: time since epoch (in nanoseconds)
935 * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday)
936 * @NFT_META_TIME_HOUR: hour of day (in seconds)
937 * @NFT_META_SDIF: slave device interface index
938 * @NFT_META_SDIFNAME: slave device interface name
939 * @NFT_META_BRI_BROUTE: packet br_netfilter_broute bit
940 */
941enum nft_meta_keys {
942 NFT_META_LEN,
943 NFT_META_PROTOCOL,
944 NFT_META_PRIORITY,
945 NFT_META_MARK,
946 NFT_META_IIF,
947 NFT_META_OIF,
948 NFT_META_IIFNAME,
949 NFT_META_OIFNAME,
950 NFT_META_IFTYPE,
951#define NFT_META_IIFTYPE NFT_META_IFTYPE
952 NFT_META_OIFTYPE,
953 NFT_META_SKUID,
954 NFT_META_SKGID,
955 NFT_META_NFTRACE,
956 NFT_META_RTCLASSID,
957 NFT_META_SECMARK,
958 NFT_META_NFPROTO,
959 NFT_META_L4PROTO,
960 NFT_META_BRI_IIFNAME,
961 NFT_META_BRI_OIFNAME,
962 NFT_META_PKTTYPE,
963 NFT_META_CPU,
964 NFT_META_IIFGROUP,
965 NFT_META_OIFGROUP,
966 NFT_META_CGROUP,
967 NFT_META_PRANDOM,
968 NFT_META_SECPATH,
969 NFT_META_IIFKIND,
970 NFT_META_OIFKIND,
971 NFT_META_BRI_IIFPVID,
972 NFT_META_BRI_IIFVPROTO,
973 NFT_META_TIME_NS,
974 NFT_META_TIME_DAY,
975 NFT_META_TIME_HOUR,
976 NFT_META_SDIF,
977 NFT_META_SDIFNAME,
978 NFT_META_BRI_BROUTE,
979 __NFT_META_IIFTYPE,
980};
981
982/**
983 * enum nft_rt_keys - nf_tables routing expression keys
984 *
985 * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid)
986 * @NFT_RT_NEXTHOP4: routing nexthop for IPv4
987 * @NFT_RT_NEXTHOP6: routing nexthop for IPv6
988 * @NFT_RT_TCPMSS: fetch current path tcp mss
989 * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL
990 */
991enum nft_rt_keys {
992 NFT_RT_CLASSID,
993 NFT_RT_NEXTHOP4,
994 NFT_RT_NEXTHOP6,
995 NFT_RT_TCPMSS,
996 NFT_RT_XFRM,
997 __NFT_RT_MAX
998};
999#define NFT_RT_MAX (__NFT_RT_MAX - 1)
1000
1001/**
1002 * enum nft_hash_types - nf_tables hash expression types
1003 *
1004 * @NFT_HASH_JENKINS: Jenkins Hash
1005 * @NFT_HASH_SYM: Symmetric Hash
1006 */
1007enum nft_hash_types {
1008 NFT_HASH_JENKINS,
1009 NFT_HASH_SYM,
1010};
1011
1012/**
1013 * enum nft_hash_attributes - nf_tables hash expression netlink attributes
1014 *
1015 * @NFTA_HASH_SREG: source register (NLA_U32)
1016 * @NFTA_HASH_DREG: destination register (NLA_U32)
1017 * @NFTA_HASH_LEN: source data length (NLA_U32)
1018 * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
1019 * @NFTA_HASH_SEED: seed value (NLA_U32)
1020 * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
1021 * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types)
1022 * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING)
1023 * @NFTA_HASH_SET_ID: id of the map (NLA_U32)
1024 */
1025enum nft_hash_attributes {
1026 NFTA_HASH_UNSPEC,
1027 NFTA_HASH_SREG,
1028 NFTA_HASH_DREG,
1029 NFTA_HASH_LEN,
1030 NFTA_HASH_MODULUS,
1031 NFTA_HASH_SEED,
1032 NFTA_HASH_OFFSET,
1033 NFTA_HASH_TYPE,
1034 NFTA_HASH_SET_NAME, /* deprecated */
1035 NFTA_HASH_SET_ID, /* deprecated */
1036 __NFTA_HASH_MAX,
1037};
1038#define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1)
1039
1040/**
1041 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
1042 *
1043 * @NFTA_META_DREG: destination register (NLA_U32)
1044 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
1045 * @NFTA_META_SREG: source register (NLA_U32)
1046 */
1047enum nft_meta_attributes {
1048 NFTA_META_UNSPEC,
1049 NFTA_META_DREG,
1050 NFTA_META_KEY,
1051 NFTA_META_SREG,
1052 __NFTA_META_MAX
1053};
1054#define NFTA_META_MAX (__NFTA_META_MAX - 1)
1055
1056/**
1057 * enum nft_rt_attributes - nf_tables routing expression netlink attributes
1058 *
1059 * @NFTA_RT_DREG: destination register (NLA_U32)
1060 * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys)
1061 */
1062enum nft_rt_attributes {
1063 NFTA_RT_UNSPEC,
1064 NFTA_RT_DREG,
1065 NFTA_RT_KEY,
1066 __NFTA_RT_MAX
1067};
1068#define NFTA_RT_MAX (__NFTA_RT_MAX - 1)
1069
1070/**
1071 * enum nft_socket_attributes - nf_tables socket expression netlink attributes
1072 *
1073 * @NFTA_SOCKET_KEY: socket key to match
1074 * @NFTA_SOCKET_DREG: destination register
1075 * @NFTA_SOCKET_LEVEL: cgroups2 ancestor level (only for cgroupsv2)
1076 */
1077enum nft_socket_attributes {
1078 NFTA_SOCKET_UNSPEC,
1079 NFTA_SOCKET_KEY,
1080 NFTA_SOCKET_DREG,
1081 NFTA_SOCKET_LEVEL,
1082 __NFTA_SOCKET_MAX
1083};
1084#define NFTA_SOCKET_MAX (__NFTA_SOCKET_MAX - 1)
1085
1086/*
1087 * enum nft_socket_keys - nf_tables socket expression keys
1088 *
1089 * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option
1090 * @NFT_SOCKET_MARK: Value of the socket mark
1091 * @NFT_SOCKET_WILDCARD: Whether the socket is zero-bound (e.g. 0.0.0.0 or ::0)
1092 * @NFT_SOCKET_CGROUPV2: Match on cgroups version 2
1093 */
1094enum nft_socket_keys {
1095 NFT_SOCKET_TRANSPARENT,
1096 NFT_SOCKET_MARK,
1097 NFT_SOCKET_WILDCARD,
1098 NFT_SOCKET_CGROUPV2,
1099 __NFT_SOCKET_MAX
1100};
1101#define NFT_SOCKET_MAX (__NFT_SOCKET_MAX - 1)
1102
1103/**
1104 * enum nft_ct_keys - nf_tables ct expression keys
1105 *
1106 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
1107 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
1108 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
1109 * @NFT_CT_MARK: conntrack mark value
1110 * @NFT_CT_SECMARK: conntrack secmark value
1111 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
1112 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
1113 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
1114 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated)
1115 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated)
1116 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
1117 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
1118 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
1119 * @NFT_CT_LABELS: conntrack labels
1120 * @NFT_CT_PKTS: conntrack packets
1121 * @NFT_CT_BYTES: conntrack bytes
1122 * @NFT_CT_AVGPKT: conntrack average bytes per packet
1123 * @NFT_CT_ZONE: conntrack zone
1124 * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack
1125 * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address)
1126 * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address)
1127 * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address)
1128 * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address)
1129 * @NFT_CT_ID: conntrack id
1130 */
1131enum nft_ct_keys {
1132 NFT_CT_STATE,
1133 NFT_CT_DIRECTION,
1134 NFT_CT_STATUS,
1135 NFT_CT_MARK,
1136 NFT_CT_SECMARK,
1137 NFT_CT_EXPIRATION,
1138 NFT_CT_HELPER,
1139 NFT_CT_L3PROTOCOL,
1140 NFT_CT_SRC,
1141 NFT_CT_DST,
1142 NFT_CT_PROTOCOL,
1143 NFT_CT_PROTO_SRC,
1144 NFT_CT_PROTO_DST,
1145 NFT_CT_LABELS,
1146 NFT_CT_PKTS,
1147 NFT_CT_BYTES,
1148 NFT_CT_AVGPKT,
1149 NFT_CT_ZONE,
1150 NFT_CT_EVENTMASK,
1151 NFT_CT_SRC_IP,
1152 NFT_CT_DST_IP,
1153 NFT_CT_SRC_IP6,
1154 NFT_CT_DST_IP6,
1155 NFT_CT_ID,
1156 __NFT_CT_MAX
1157};
1158#define NFT_CT_MAX (__NFT_CT_MAX - 1)
1159
1160/**
1161 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
1162 *
1163 * @NFTA_CT_DREG: destination register (NLA_U32)
1164 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
1165 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
1166 * @NFTA_CT_SREG: source register (NLA_U32)
1167 */
1168enum nft_ct_attributes {
1169 NFTA_CT_UNSPEC,
1170 NFTA_CT_DREG,
1171 NFTA_CT_KEY,
1172 NFTA_CT_DIRECTION,
1173 NFTA_CT_SREG,
1174 __NFTA_CT_MAX
1175};
1176#define NFTA_CT_MAX (__NFTA_CT_MAX - 1)
1177
1178/**
1179 * enum nft_flow_attributes - ct offload expression attributes
1180 * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
1181 */
1182enum nft_offload_attributes {
1183 NFTA_FLOW_UNSPEC,
1184 NFTA_FLOW_TABLE_NAME,
1185 __NFTA_FLOW_MAX,
1186};
1187#define NFTA_FLOW_MAX (__NFTA_FLOW_MAX - 1)
1188
1189enum nft_limit_type {
1190 NFT_LIMIT_PKTS,
1191 NFT_LIMIT_PKT_BYTES
1192};
1193
1194enum nft_limit_flags {
1195 NFT_LIMIT_F_INV = (1 << 0),
1196};
1197
1198/**
1199 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
1200 *
1201 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
1202 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
1203 * @NFTA_LIMIT_BURST: burst (NLA_U32)
1204 * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
1205 * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
1206 */
1207enum nft_limit_attributes {
1208 NFTA_LIMIT_UNSPEC,
1209 NFTA_LIMIT_RATE,
1210 NFTA_LIMIT_UNIT,
1211 NFTA_LIMIT_BURST,
1212 NFTA_LIMIT_TYPE,
1213 NFTA_LIMIT_FLAGS,
1214 NFTA_LIMIT_PAD,
1215 __NFTA_LIMIT_MAX
1216};
1217#define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1)
1218
1219enum nft_connlimit_flags {
1220 NFT_CONNLIMIT_F_INV = (1 << 0),
1221};
1222
1223/**
1224 * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes
1225 *
1226 * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32)
1227 * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags)
1228 */
1229enum nft_connlimit_attributes {
1230 NFTA_CONNLIMIT_UNSPEC,
1231 NFTA_CONNLIMIT_COUNT,
1232 NFTA_CONNLIMIT_FLAGS,
1233 __NFTA_CONNLIMIT_MAX
1234};
1235#define NFTA_CONNLIMIT_MAX (__NFTA_CONNLIMIT_MAX - 1)
1236
1237/**
1238 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
1239 *
1240 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
1241 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
1242 */
1243enum nft_counter_attributes {
1244 NFTA_COUNTER_UNSPEC,
1245 NFTA_COUNTER_BYTES,
1246 NFTA_COUNTER_PACKETS,
1247 NFTA_COUNTER_PAD,
1248 __NFTA_COUNTER_MAX
1249};
1250#define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1)
1251
1252/**
1253 * enum nft_last_attributes - nf_tables last expression netlink attributes
1254 *
1255 * @NFTA_LAST_SET: last update has been set, zero means never updated (NLA_U32)
1256 * @NFTA_LAST_MSECS: milliseconds since last update (NLA_U64)
1257 */
1258enum nft_last_attributes {
1259 NFTA_LAST_UNSPEC,
1260 NFTA_LAST_SET,
1261 NFTA_LAST_MSECS,
1262 NFTA_LAST_PAD,
1263 __NFTA_LAST_MAX
1264};
1265#define NFTA_LAST_MAX (__NFTA_LAST_MAX - 1)
1266
1267/**
1268 * enum nft_log_attributes - nf_tables log expression netlink attributes
1269 *
1270 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U16)
1271 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
1272 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
1273 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U16)
1274 * @NFTA_LOG_LEVEL: log level (NLA_U32)
1275 * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
1276 */
1277enum nft_log_attributes {
1278 NFTA_LOG_UNSPEC,
1279 NFTA_LOG_GROUP,
1280 NFTA_LOG_PREFIX,
1281 NFTA_LOG_SNAPLEN,
1282 NFTA_LOG_QTHRESHOLD,
1283 NFTA_LOG_LEVEL,
1284 NFTA_LOG_FLAGS,
1285 __NFTA_LOG_MAX
1286};
1287#define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1)
1288
1289/**
1290 * enum nft_log_level - nf_tables log levels
1291 *
1292 * @NFT_LOGLEVEL_EMERG: system is unusable
1293 * @NFT_LOGLEVEL_ALERT: action must be taken immediately
1294 * @NFT_LOGLEVEL_CRIT: critical conditions
1295 * @NFT_LOGLEVEL_ERR: error conditions
1296 * @NFT_LOGLEVEL_WARNING: warning conditions
1297 * @NFT_LOGLEVEL_NOTICE: normal but significant condition
1298 * @NFT_LOGLEVEL_INFO: informational
1299 * @NFT_LOGLEVEL_DEBUG: debug-level messages
1300 * @NFT_LOGLEVEL_AUDIT: enabling audit logging
1301 */
1302enum nft_log_level {
1303 NFT_LOGLEVEL_EMERG,
1304 NFT_LOGLEVEL_ALERT,
1305 NFT_LOGLEVEL_CRIT,
1306 NFT_LOGLEVEL_ERR,
1307 NFT_LOGLEVEL_WARNING,
1308 NFT_LOGLEVEL_NOTICE,
1309 NFT_LOGLEVEL_INFO,
1310 NFT_LOGLEVEL_DEBUG,
1311 NFT_LOGLEVEL_AUDIT,
1312 __NFT_LOGLEVEL_MAX
1313};
1314#define NFT_LOGLEVEL_MAX (__NFT_LOGLEVEL_MAX - 1)
1315
1316/**
1317 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
1318 *
1319 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
1320 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
1321 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
1322 * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
1323 */
1324enum nft_queue_attributes {
1325 NFTA_QUEUE_UNSPEC,
1326 NFTA_QUEUE_NUM,
1327 NFTA_QUEUE_TOTAL,
1328 NFTA_QUEUE_FLAGS,
1329 NFTA_QUEUE_SREG_QNUM,
1330 __NFTA_QUEUE_MAX
1331};
1332#define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1)
1333
1334#define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */
1335#define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */
1336#define NFT_QUEUE_FLAG_MASK 0x03
1337
1338enum nft_quota_flags {
1339 NFT_QUOTA_F_INV = (1 << 0),
1340 NFT_QUOTA_F_DEPLETED = (1 << 1),
1341};
1342
1343/**
1344 * enum nft_quota_attributes - nf_tables quota expression netlink attributes
1345 *
1346 * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
1347 * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
1348 * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
1349 */
1350enum nft_quota_attributes {
1351 NFTA_QUOTA_UNSPEC,
1352 NFTA_QUOTA_BYTES,
1353 NFTA_QUOTA_FLAGS,
1354 NFTA_QUOTA_PAD,
1355 NFTA_QUOTA_CONSUMED,
1356 __NFTA_QUOTA_MAX
1357};
1358#define NFTA_QUOTA_MAX (__NFTA_QUOTA_MAX - 1)
1359
1360/**
1361 * enum nft_secmark_attributes - nf_tables secmark object netlink attributes
1362 *
1363 * @NFTA_SECMARK_CTX: security context (NLA_STRING)
1364 */
1365enum nft_secmark_attributes {
1366 NFTA_SECMARK_UNSPEC,
1367 NFTA_SECMARK_CTX,
1368 __NFTA_SECMARK_MAX,
1369};
1370#define NFTA_SECMARK_MAX (__NFTA_SECMARK_MAX - 1)
1371
1372/* Max security context length */
1373#define NFT_SECMARK_CTX_MAXLEN 256
1374
1375/**
1376 * enum nft_reject_types - nf_tables reject expression reject types
1377 *
1378 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
1379 * @NFT_REJECT_TCP_RST: reject using TCP RST
1380 * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
1381 */
1382enum nft_reject_types {
1383 NFT_REJECT_ICMP_UNREACH,
1384 NFT_REJECT_TCP_RST,
1385 NFT_REJECT_ICMPX_UNREACH,
1386};
1387
1388/**
1389 * enum nft_reject_code - Generic reject codes for IPv4/IPv6
1390 *
1391 * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
1392 * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
1393 * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
1394 * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
1395 *
1396 * These codes are mapped to real ICMP and ICMPv6 codes.
1397 */
1398enum nft_reject_inet_code {
1399 NFT_REJECT_ICMPX_NO_ROUTE = 0,
1400 NFT_REJECT_ICMPX_PORT_UNREACH,
1401 NFT_REJECT_ICMPX_HOST_UNREACH,
1402 NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
1403 __NFT_REJECT_ICMPX_MAX
1404};
1405#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
1406
1407/**
1408 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
1409 *
1410 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
1411 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
1412 */
1413enum nft_reject_attributes {
1414 NFTA_REJECT_UNSPEC,
1415 NFTA_REJECT_TYPE,
1416 NFTA_REJECT_ICMP_CODE,
1417 __NFTA_REJECT_MAX
1418};
1419#define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1)
1420
1421/**
1422 * enum nft_nat_types - nf_tables nat expression NAT types
1423 *
1424 * @NFT_NAT_SNAT: source NAT
1425 * @NFT_NAT_DNAT: destination NAT
1426 */
1427enum nft_nat_types {
1428 NFT_NAT_SNAT,
1429 NFT_NAT_DNAT,
1430};
1431
1432/**
1433 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
1434 *
1435 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
1436 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
1437 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
1438 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
1439 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1440 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1441 * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1442 */
1443enum nft_nat_attributes {
1444 NFTA_NAT_UNSPEC,
1445 NFTA_NAT_TYPE,
1446 NFTA_NAT_FAMILY,
1447 NFTA_NAT_REG_ADDR_MIN,
1448 NFTA_NAT_REG_ADDR_MAX,
1449 NFTA_NAT_REG_PROTO_MIN,
1450 NFTA_NAT_REG_PROTO_MAX,
1451 NFTA_NAT_FLAGS,
1452 __NFTA_NAT_MAX
1453};
1454#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
1455
1456/**
1457 * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes
1458 *
1459 * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers)
1460 * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers)
1461 * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers)
1462 */
1463enum nft_tproxy_attributes {
1464 NFTA_TPROXY_UNSPEC,
1465 NFTA_TPROXY_FAMILY,
1466 NFTA_TPROXY_REG_ADDR,
1467 NFTA_TPROXY_REG_PORT,
1468 __NFTA_TPROXY_MAX
1469};
1470#define NFTA_TPROXY_MAX (__NFTA_TPROXY_MAX - 1)
1471
1472/**
1473 * enum nft_masq_attributes - nf_tables masquerade expression attributes
1474 *
1475 * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1476 * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1477 * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1478 */
1479enum nft_masq_attributes {
1480 NFTA_MASQ_UNSPEC,
1481 NFTA_MASQ_FLAGS,
1482 NFTA_MASQ_REG_PROTO_MIN,
1483 NFTA_MASQ_REG_PROTO_MAX,
1484 __NFTA_MASQ_MAX
1485};
1486#define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
1487
1488/**
1489 * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
1490 *
1491 * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1492 * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1493 * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1494 */
1495enum nft_redir_attributes {
1496 NFTA_REDIR_UNSPEC,
1497 NFTA_REDIR_REG_PROTO_MIN,
1498 NFTA_REDIR_REG_PROTO_MAX,
1499 NFTA_REDIR_FLAGS,
1500 __NFTA_REDIR_MAX
1501};
1502#define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1)
1503
1504/**
1505 * enum nft_dup_attributes - nf_tables dup expression netlink attributes
1506 *
1507 * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
1508 * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1509 */
1510enum nft_dup_attributes {
1511 NFTA_DUP_UNSPEC,
1512 NFTA_DUP_SREG_ADDR,
1513 NFTA_DUP_SREG_DEV,
1514 __NFTA_DUP_MAX
1515};
1516#define NFTA_DUP_MAX (__NFTA_DUP_MAX - 1)
1517
1518/**
1519 * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
1520 *
1521 * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1522 * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register)
1523 * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto)
1524 */
1525enum nft_fwd_attributes {
1526 NFTA_FWD_UNSPEC,
1527 NFTA_FWD_SREG_DEV,
1528 NFTA_FWD_SREG_ADDR,
1529 NFTA_FWD_NFPROTO,
1530 __NFTA_FWD_MAX
1531};
1532#define NFTA_FWD_MAX (__NFTA_FWD_MAX - 1)
1533
1534/**
1535 * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes
1536 *
1537 * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register)
1538 * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING)
1539 * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers)
1540 * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING)
1541 * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32)
1542 */
1543enum nft_objref_attributes {
1544 NFTA_OBJREF_UNSPEC,
1545 NFTA_OBJREF_IMM_TYPE,
1546 NFTA_OBJREF_IMM_NAME,
1547 NFTA_OBJREF_SET_SREG,
1548 NFTA_OBJREF_SET_NAME,
1549 NFTA_OBJREF_SET_ID,
1550 __NFTA_OBJREF_MAX
1551};
1552#define NFTA_OBJREF_MAX (__NFTA_OBJREF_MAX - 1)
1553
1554/**
1555 * enum nft_gen_attributes - nf_tables ruleset generation attributes
1556 *
1557 * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
1558 */
1559enum nft_gen_attributes {
1560 NFTA_GEN_UNSPEC,
1561 NFTA_GEN_ID,
1562 NFTA_GEN_PROC_PID,
1563 NFTA_GEN_PROC_NAME,
1564 __NFTA_GEN_MAX
1565};
1566#define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1)
1567
1568/*
1569 * enum nft_fib_attributes - nf_tables fib expression netlink attributes
1570 *
1571 * @NFTA_FIB_DREG: destination register (NLA_U32)
1572 * @NFTA_FIB_RESULT: desired result (NLA_U32)
1573 * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32)
1574 *
1575 * The FIB expression performs a route lookup according
1576 * to the packet data.
1577 */
1578enum nft_fib_attributes {
1579 NFTA_FIB_UNSPEC,
1580 NFTA_FIB_DREG,
1581 NFTA_FIB_RESULT,
1582 NFTA_FIB_FLAGS,
1583 __NFTA_FIB_MAX
1584};
1585#define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1)
1586
1587enum nft_fib_result {
1588 NFT_FIB_RESULT_UNSPEC,
1589 NFT_FIB_RESULT_OIF,
1590 NFT_FIB_RESULT_OIFNAME,
1591 NFT_FIB_RESULT_ADDRTYPE,
1592 __NFT_FIB_RESULT_MAX
1593};
1594#define NFT_FIB_RESULT_MAX (__NFT_FIB_RESULT_MAX - 1)
1595
1596enum nft_fib_flags {
1597 NFTA_FIB_F_SADDR = 1 << 0, /* look up src */
1598 NFTA_FIB_F_DADDR = 1 << 1, /* look up dst */
1599 NFTA_FIB_F_MARK = 1 << 2, /* use skb->mark */
1600 NFTA_FIB_F_IIF = 1 << 3, /* restrict to iif */
1601 NFTA_FIB_F_OIF = 1 << 4, /* restrict to oif */
1602 NFTA_FIB_F_PRESENT = 1 << 5, /* check existence only */
1603};
1604
1605enum nft_ct_helper_attributes {
1606 NFTA_CT_HELPER_UNSPEC,
1607 NFTA_CT_HELPER_NAME,
1608 NFTA_CT_HELPER_L3PROTO,
1609 NFTA_CT_HELPER_L4PROTO,
1610 __NFTA_CT_HELPER_MAX,
1611};
1612#define NFTA_CT_HELPER_MAX (__NFTA_CT_HELPER_MAX - 1)
1613
1614enum nft_ct_timeout_timeout_attributes {
1615 NFTA_CT_TIMEOUT_UNSPEC,
1616 NFTA_CT_TIMEOUT_L3PROTO,
1617 NFTA_CT_TIMEOUT_L4PROTO,
1618 NFTA_CT_TIMEOUT_DATA,
1619 __NFTA_CT_TIMEOUT_MAX,
1620};
1621#define NFTA_CT_TIMEOUT_MAX (__NFTA_CT_TIMEOUT_MAX - 1)
1622
1623enum nft_ct_expectation_attributes {
1624 NFTA_CT_EXPECT_UNSPEC,
1625 NFTA_CT_EXPECT_L3PROTO,
1626 NFTA_CT_EXPECT_L4PROTO,
1627 NFTA_CT_EXPECT_DPORT,
1628 NFTA_CT_EXPECT_TIMEOUT,
1629 NFTA_CT_EXPECT_SIZE,
1630 __NFTA_CT_EXPECT_MAX,
1631};
1632#define NFTA_CT_EXPECT_MAX (__NFTA_CT_EXPECT_MAX - 1)
1633
1634#define NFT_OBJECT_UNSPEC 0
1635#define NFT_OBJECT_COUNTER 1
1636#define NFT_OBJECT_QUOTA 2
1637#define NFT_OBJECT_CT_HELPER 3
1638#define NFT_OBJECT_LIMIT 4
1639#define NFT_OBJECT_CONNLIMIT 5
1640#define NFT_OBJECT_TUNNEL 6
1641#define NFT_OBJECT_CT_TIMEOUT 7
1642#define NFT_OBJECT_SECMARK 8
1643#define NFT_OBJECT_CT_EXPECT 9
1644#define NFT_OBJECT_SYNPROXY 10
1645#define __NFT_OBJECT_MAX 11
1646#define NFT_OBJECT_MAX (__NFT_OBJECT_MAX - 1)
1647
1648/**
1649 * enum nft_object_attributes - nf_tables stateful object netlink attributes
1650 *
1651 * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING)
1652 * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING)
1653 * @NFTA_OBJ_TYPE: stateful object type (NLA_U32)
1654 * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED)
1655 * @NFTA_OBJ_USE: number of references to this expression (NLA_U32)
1656 * @NFTA_OBJ_HANDLE: object handle (NLA_U64)
1657 * @NFTA_OBJ_USERDATA: user data (NLA_BINARY)
1658 */
1659enum nft_object_attributes {
1660 NFTA_OBJ_UNSPEC,
1661 NFTA_OBJ_TABLE,
1662 NFTA_OBJ_NAME,
1663 NFTA_OBJ_TYPE,
1664 NFTA_OBJ_DATA,
1665 NFTA_OBJ_USE,
1666 NFTA_OBJ_HANDLE,
1667 NFTA_OBJ_PAD,
1668 NFTA_OBJ_USERDATA,
1669 __NFTA_OBJ_MAX
1670};
1671#define NFTA_OBJ_MAX (__NFTA_OBJ_MAX - 1)
1672
1673/**
1674 * enum nft_flowtable_flags - nf_tables flowtable flags
1675 *
1676 * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled
1677 * @NFT_FLOWTABLE_COUNTER: enable flow counters
1678 */
1679enum nft_flowtable_flags {
1680 NFT_FLOWTABLE_HW_OFFLOAD = 0x1,
1681 NFT_FLOWTABLE_COUNTER = 0x2,
1682 NFT_FLOWTABLE_MASK = (NFT_FLOWTABLE_HW_OFFLOAD |
1683 NFT_FLOWTABLE_COUNTER)
1684};
1685
1686/**
1687 * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
1688 *
1689 * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
1690 * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
1691 * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
1692 * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
1693 * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
1694 * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
1695 */
1696enum nft_flowtable_attributes {
1697 NFTA_FLOWTABLE_UNSPEC,
1698 NFTA_FLOWTABLE_TABLE,
1699 NFTA_FLOWTABLE_NAME,
1700 NFTA_FLOWTABLE_HOOK,
1701 NFTA_FLOWTABLE_USE,
1702 NFTA_FLOWTABLE_HANDLE,
1703 NFTA_FLOWTABLE_PAD,
1704 NFTA_FLOWTABLE_FLAGS,
1705 __NFTA_FLOWTABLE_MAX
1706};
1707#define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1)
1708
1709/**
1710 * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
1711 *
1712 * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
1713 * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
1714 * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
1715 */
1716enum nft_flowtable_hook_attributes {
1717 NFTA_FLOWTABLE_HOOK_UNSPEC,
1718 NFTA_FLOWTABLE_HOOK_NUM,
1719 NFTA_FLOWTABLE_HOOK_PRIORITY,
1720 NFTA_FLOWTABLE_HOOK_DEVS,
1721 __NFTA_FLOWTABLE_HOOK_MAX
1722};
1723#define NFTA_FLOWTABLE_HOOK_MAX (__NFTA_FLOWTABLE_HOOK_MAX - 1)
1724
1725/**
1726 * enum nft_osf_attributes - nftables osf expression netlink attributes
1727 *
1728 * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers)
1729 * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8)
1730 * @NFTA_OSF_FLAGS: flags (NLA_U32)
1731 */
1732enum nft_osf_attributes {
1733 NFTA_OSF_UNSPEC,
1734 NFTA_OSF_DREG,
1735 NFTA_OSF_TTL,
1736 NFTA_OSF_FLAGS,
1737 __NFTA_OSF_MAX,
1738};
1739#define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1)
1740
1741enum nft_osf_flags {
1742 NFT_OSF_F_VERSION = (1 << 0),
1743};
1744
1745/**
1746 * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes
1747 *
1748 * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16)
1749 * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8)
1750 * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32)
1751 */
1752enum nft_synproxy_attributes {
1753 NFTA_SYNPROXY_UNSPEC,
1754 NFTA_SYNPROXY_MSS,
1755 NFTA_SYNPROXY_WSCALE,
1756 NFTA_SYNPROXY_FLAGS,
1757 __NFTA_SYNPROXY_MAX,
1758};
1759#define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1)
1760
1761/**
1762 * enum nft_device_attributes - nf_tables device netlink attributes
1763 *
1764 * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
1765 */
1766enum nft_devices_attributes {
1767 NFTA_DEVICE_UNSPEC,
1768 NFTA_DEVICE_NAME,
1769 __NFTA_DEVICE_MAX
1770};
1771#define NFTA_DEVICE_MAX (__NFTA_DEVICE_MAX - 1)
1772
1773/*
1774 * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes
1775 *
1776 * @NFTA_XFRM_DREG: destination register (NLA_U32)
1777 * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32)
1778 * @NFTA_XFRM_DIR: direction (NLA_U8)
1779 * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32)
1780 */
1781enum nft_xfrm_attributes {
1782 NFTA_XFRM_UNSPEC,
1783 NFTA_XFRM_DREG,
1784 NFTA_XFRM_KEY,
1785 NFTA_XFRM_DIR,
1786 NFTA_XFRM_SPNUM,
1787 __NFTA_XFRM_MAX
1788};
1789#define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1)
1790
1791enum nft_xfrm_keys {
1792 NFT_XFRM_KEY_UNSPEC,
1793 NFT_XFRM_KEY_DADDR_IP4,
1794 NFT_XFRM_KEY_DADDR_IP6,
1795 NFT_XFRM_KEY_SADDR_IP4,
1796 NFT_XFRM_KEY_SADDR_IP6,
1797 NFT_XFRM_KEY_REQID,
1798 NFT_XFRM_KEY_SPI,
1799 __NFT_XFRM_KEY_MAX,
1800};
1801#define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1)
1802
1803/**
1804 * enum nft_trace_attributes - nf_tables trace netlink attributes
1805 *
1806 * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
1807 * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
1808 * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
1809 * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
1810 * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
1811 * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
1812 * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
1813 * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
1814 * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
1815 * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
1816 * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
1817 * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
1818 * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
1819 * @NFTA_TRACE_MARK: nfmark (NLA_U32)
1820 * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
1821 * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
1822 */
1823enum nft_trace_attributes {
1824 NFTA_TRACE_UNSPEC,
1825 NFTA_TRACE_TABLE,
1826 NFTA_TRACE_CHAIN,
1827 NFTA_TRACE_RULE_HANDLE,
1828 NFTA_TRACE_TYPE,
1829 NFTA_TRACE_VERDICT,
1830 NFTA_TRACE_ID,
1831 NFTA_TRACE_LL_HEADER,
1832 NFTA_TRACE_NETWORK_HEADER,
1833 NFTA_TRACE_TRANSPORT_HEADER,
1834 NFTA_TRACE_IIF,
1835 NFTA_TRACE_IIFTYPE,
1836 NFTA_TRACE_OIF,
1837 NFTA_TRACE_OIFTYPE,
1838 NFTA_TRACE_MARK,
1839 NFTA_TRACE_NFPROTO,
1840 NFTA_TRACE_POLICY,
1841 NFTA_TRACE_PAD,
1842 __NFTA_TRACE_MAX
1843};
1844#define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
1845
1846enum nft_trace_types {
1847 NFT_TRACETYPE_UNSPEC,
1848 NFT_TRACETYPE_POLICY,
1849 NFT_TRACETYPE_RETURN,
1850 NFT_TRACETYPE_RULE,
1851 __NFT_TRACETYPE_MAX
1852};
1853#define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)
1854
1855/**
1856 * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
1857 *
1858 * @NFTA_NG_DREG: destination register (NLA_U32)
1859 * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
1860 * @NFTA_NG_TYPE: operation type (NLA_U32)
1861 * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
1862 * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING)
1863 * @NFTA_NG_SET_ID: id of the map (NLA_U32)
1864 */
1865enum nft_ng_attributes {
1866 NFTA_NG_UNSPEC,
1867 NFTA_NG_DREG,
1868 NFTA_NG_MODULUS,
1869 NFTA_NG_TYPE,
1870 NFTA_NG_OFFSET,
1871 NFTA_NG_SET_NAME, /* deprecated */
1872 NFTA_NG_SET_ID, /* deprecated */
1873 __NFTA_NG_MAX
1874};
1875#define NFTA_NG_MAX (__NFTA_NG_MAX - 1)
1876
1877enum nft_ng_types {
1878 NFT_NG_INCREMENTAL,
1879 NFT_NG_RANDOM,
1880 __NFT_NG_MAX
1881};
1882#define NFT_NG_MAX (__NFT_NG_MAX - 1)
1883
1884enum nft_tunnel_key_ip_attributes {
1885 NFTA_TUNNEL_KEY_IP_UNSPEC,
1886 NFTA_TUNNEL_KEY_IP_SRC,
1887 NFTA_TUNNEL_KEY_IP_DST,
1888 __NFTA_TUNNEL_KEY_IP_MAX
1889};
1890#define NFTA_TUNNEL_KEY_IP_MAX (__NFTA_TUNNEL_KEY_IP_MAX - 1)
1891
1892enum nft_tunnel_ip6_attributes {
1893 NFTA_TUNNEL_KEY_IP6_UNSPEC,
1894 NFTA_TUNNEL_KEY_IP6_SRC,
1895 NFTA_TUNNEL_KEY_IP6_DST,
1896 NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
1897 __NFTA_TUNNEL_KEY_IP6_MAX
1898};
1899#define NFTA_TUNNEL_KEY_IP6_MAX (__NFTA_TUNNEL_KEY_IP6_MAX - 1)
1900
1901enum nft_tunnel_opts_attributes {
1902 NFTA_TUNNEL_KEY_OPTS_UNSPEC,
1903 NFTA_TUNNEL_KEY_OPTS_VXLAN,
1904 NFTA_TUNNEL_KEY_OPTS_ERSPAN,
1905 NFTA_TUNNEL_KEY_OPTS_GENEVE,
1906 __NFTA_TUNNEL_KEY_OPTS_MAX
1907};
1908#define NFTA_TUNNEL_KEY_OPTS_MAX (__NFTA_TUNNEL_KEY_OPTS_MAX - 1)
1909
1910enum nft_tunnel_opts_vxlan_attributes {
1911 NFTA_TUNNEL_KEY_VXLAN_UNSPEC,
1912 NFTA_TUNNEL_KEY_VXLAN_GBP,
1913 __NFTA_TUNNEL_KEY_VXLAN_MAX
1914};
1915#define NFTA_TUNNEL_KEY_VXLAN_MAX (__NFTA_TUNNEL_KEY_VXLAN_MAX - 1)
1916
1917enum nft_tunnel_opts_erspan_attributes {
1918 NFTA_TUNNEL_KEY_ERSPAN_UNSPEC,
1919 NFTA_TUNNEL_KEY_ERSPAN_VERSION,
1920 NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
1921 NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
1922 NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
1923 __NFTA_TUNNEL_KEY_ERSPAN_MAX
1924};
1925#define NFTA_TUNNEL_KEY_ERSPAN_MAX (__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1)
1926
1927enum nft_tunnel_opts_geneve_attributes {
1928 NFTA_TUNNEL_KEY_GENEVE_UNSPEC,
1929 NFTA_TUNNEL_KEY_GENEVE_CLASS,
1930 NFTA_TUNNEL_KEY_GENEVE_TYPE,
1931 NFTA_TUNNEL_KEY_GENEVE_DATA,
1932 __NFTA_TUNNEL_KEY_GENEVE_MAX
1933};
1934#define NFTA_TUNNEL_KEY_GENEVE_MAX (__NFTA_TUNNEL_KEY_GENEVE_MAX - 1)
1935
1936enum nft_tunnel_flags {
1937 NFT_TUNNEL_F_ZERO_CSUM_TX = (1 << 0),
1938 NFT_TUNNEL_F_DONT_FRAGMENT = (1 << 1),
1939 NFT_TUNNEL_F_SEQ_NUMBER = (1 << 2),
1940};
1941#define NFT_TUNNEL_F_MASK (NFT_TUNNEL_F_ZERO_CSUM_TX | \
1942 NFT_TUNNEL_F_DONT_FRAGMENT | \
1943 NFT_TUNNEL_F_SEQ_NUMBER)
1944
1945enum nft_tunnel_key_attributes {
1946 NFTA_TUNNEL_KEY_UNSPEC,
1947 NFTA_TUNNEL_KEY_ID,
1948 NFTA_TUNNEL_KEY_IP,
1949 NFTA_TUNNEL_KEY_IP6,
1950 NFTA_TUNNEL_KEY_FLAGS,
1951 NFTA_TUNNEL_KEY_TOS,
1952 NFTA_TUNNEL_KEY_TTL,
1953 NFTA_TUNNEL_KEY_SPORT,
1954 NFTA_TUNNEL_KEY_DPORT,
1955 NFTA_TUNNEL_KEY_OPTS,
1956 __NFTA_TUNNEL_KEY_MAX
1957};
1958#define NFTA_TUNNEL_KEY_MAX (__NFTA_TUNNEL_KEY_MAX - 1)
1959
1960enum nft_tunnel_keys {
1961 NFT_TUNNEL_PATH,
1962 NFT_TUNNEL_ID,
1963 __NFT_TUNNEL_MAX
1964};
1965#define NFT_TUNNEL_MAX (__NFT_TUNNEL_MAX - 1)
1966
1967enum nft_tunnel_mode {
1968 NFT_TUNNEL_MODE_NONE,
1969 NFT_TUNNEL_MODE_RX,
1970 NFT_TUNNEL_MODE_TX,
1971 __NFT_TUNNEL_MODE_MAX
1972};
1973#define NFT_TUNNEL_MODE_MAX (__NFT_TUNNEL_MODE_MAX - 1)
1974
1975enum nft_tunnel_attributes {
1976 NFTA_TUNNEL_UNSPEC,
1977 NFTA_TUNNEL_KEY,
1978 NFTA_TUNNEL_DREG,
1979 NFTA_TUNNEL_MODE,
1980 __NFTA_TUNNEL_MAX
1981};
1982#define NFTA_TUNNEL_MAX (__NFTA_TUNNEL_MAX - 1)
1983
1984#endif /* _LINUX_NF_TABLES_H */
1985

source code of linux/include/uapi/linux/netfilter/nf_tables.h