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  */
22 enum 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  */
64 enum 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  */
110 enum 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  */
153 enum 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  */
168 enum 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  */
183 enum 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  */
199 enum 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 
212 enum 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  */
236 enum 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  */
268 enum 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  */
290 enum 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  */
301 enum 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  */
322 enum 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  */
340 enum 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  */
351 enum 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  */
364 enum 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  */
392 enum 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  */
422 enum 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  */
441 enum 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  */
466 enum 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  */
490 enum 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  */
503 enum 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  */
521 enum 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  */
536 enum 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  */
550 enum 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  */
566 enum 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  */
597 enum 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  */
616 enum 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  */
630 enum 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  */
651 enum 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  */
667 enum 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  */
682 enum 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  */
695 enum 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 
705 enum 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  */
718 enum 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 
729 enum nft_dynset_ops {
730 	NFT_DYNSET_OP_ADD,
731 	NFT_DYNSET_OP_UPDATE,
732 	NFT_DYNSET_OP_DELETE,
733 };
734 
735 enum 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  */
753 enum 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  */
777 enum 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  */
792 enum nft_payload_csum_types {
793 	NFT_PAYLOAD_CSUM_NONE,
794 	NFT_PAYLOAD_CSUM_INET,
795 	NFT_PAYLOAD_CSUM_SCTP,
796 };
797 
798 enum nft_payload_csum_flags {
799 	NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
800 };
801 
802 enum nft_inner_type {
803 	NFT_INNER_UNSPEC	= 0,
804 	NFT_INNER_VXLAN,
805 	NFT_INNER_GENEVE,
806 };
807 
808 enum 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 
817 enum 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  */
840 enum 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 
854 enum 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  */
867 enum 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  */
888 enum 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  */
941 enum 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  */
991 enum 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  */
1007 enum 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  */
1025 enum 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  */
1047 enum 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  */
1062 enum 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  */
1077 enum 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  */
1094 enum 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  */
1131 enum 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  */
1168 enum 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  */
1182 enum 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 
1189 enum nft_limit_type {
1190 	NFT_LIMIT_PKTS,
1191 	NFT_LIMIT_PKT_BYTES
1192 };
1193 
1194 enum 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  */
1207 enum 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 
1219 enum 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  */
1229 enum 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  */
1243 enum 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  */
1258 enum 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  */
1277 enum 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  */
1302 enum 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  */
1324 enum 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 
1338 enum 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  */
1350 enum 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  */
1365 enum 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  */
1382 enum 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  */
1398 enum 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  */
1413 enum 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  */
1427 enum 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  */
1443 enum 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  */
1463 enum 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  */
1479 enum 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  */
1495 enum 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  */
1510 enum 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  */
1525 enum 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  */
1543 enum 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  */
1559 enum 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  */
1578 enum 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 
1587 enum 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 
1596 enum 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 
1605 enum 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 
1614 enum 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 
1623 enum 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  */
1659 enum 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  */
1679 enum 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  */
1696 enum 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  */
1716 enum 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  */
1732 enum 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 
1741 enum 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  */
1752 enum 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  */
1766 enum 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  */
1781 enum 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 
1791 enum 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  */
1823 enum 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 
1846 enum 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  */
1865 enum 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 
1877 enum 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 
1884 enum 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 
1892 enum 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 
1901 enum 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 
1910 enum 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 
1917 enum 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 
1927 enum 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 
1936 enum 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 
1945 enum 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 
1960 enum 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 
1967 enum 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 
1975 enum 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