xref: /linux/include/uapi/linux/netfilter/nf_tables.h (revision 76f1ed08)
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  * @NFT_TABLE_F_OWNER:   this table is owned by a process
183  * @NFT_TABLE_F_PERSIST: this table shall outlive its owner
184  */
185 enum nft_table_flags {
186 	NFT_TABLE_F_DORMANT	= 0x1,
187 	NFT_TABLE_F_OWNER	= 0x2,
188 	NFT_TABLE_F_PERSIST	= 0x4,
189 };
190 #define NFT_TABLE_F_MASK	(NFT_TABLE_F_DORMANT | \
191 				 NFT_TABLE_F_OWNER | \
192 				 NFT_TABLE_F_PERSIST)
193 
194 /**
195  * enum nft_table_attributes - nf_tables table netlink attributes
196  *
197  * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
198  * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
199  * @NFTA_TABLE_USE: number of chains in this table (NLA_U32)
200  * @NFTA_TABLE_USERDATA: user data (NLA_BINARY)
201  * @NFTA_TABLE_OWNER: owner of this table through netlink portID (NLA_U32)
202  */
203 enum nft_table_attributes {
204 	NFTA_TABLE_UNSPEC,
205 	NFTA_TABLE_NAME,
206 	NFTA_TABLE_FLAGS,
207 	NFTA_TABLE_USE,
208 	NFTA_TABLE_HANDLE,
209 	NFTA_TABLE_PAD,
210 	NFTA_TABLE_USERDATA,
211 	NFTA_TABLE_OWNER,
212 	__NFTA_TABLE_MAX
213 };
214 #define NFTA_TABLE_MAX		(__NFTA_TABLE_MAX - 1)
215 
216 enum nft_chain_flags {
217 	NFT_CHAIN_BASE		= (1 << 0),
218 	NFT_CHAIN_HW_OFFLOAD	= (1 << 1),
219 	NFT_CHAIN_BINDING	= (1 << 2),
220 };
221 #define NFT_CHAIN_FLAGS		(NFT_CHAIN_BASE		| \
222 				 NFT_CHAIN_HW_OFFLOAD	| \
223 				 NFT_CHAIN_BINDING)
224 
225 /**
226  * enum nft_chain_attributes - nf_tables chain netlink attributes
227  *
228  * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
229  * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
230  * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
231  * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
232  * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
233  * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
234  * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
235  * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
236  * @NFTA_CHAIN_FLAGS: chain flags
237  * @NFTA_CHAIN_ID: uniquely identifies a chain in a transaction (NLA_U32)
238  * @NFTA_CHAIN_USERDATA: user data (NLA_BINARY)
239  */
240 enum nft_chain_attributes {
241 	NFTA_CHAIN_UNSPEC,
242 	NFTA_CHAIN_TABLE,
243 	NFTA_CHAIN_HANDLE,
244 	NFTA_CHAIN_NAME,
245 	NFTA_CHAIN_HOOK,
246 	NFTA_CHAIN_POLICY,
247 	NFTA_CHAIN_USE,
248 	NFTA_CHAIN_TYPE,
249 	NFTA_CHAIN_COUNTERS,
250 	NFTA_CHAIN_PAD,
251 	NFTA_CHAIN_FLAGS,
252 	NFTA_CHAIN_ID,
253 	NFTA_CHAIN_USERDATA,
254 	__NFTA_CHAIN_MAX
255 };
256 #define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)
257 
258 /**
259  * enum nft_rule_attributes - nf_tables rule netlink attributes
260  *
261  * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
262  * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
263  * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
264  * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
265  * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
266  * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
267  * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
268  * @NFTA_RULE_ID: uniquely identifies a rule in a transaction (NLA_U32)
269  * @NFTA_RULE_POSITION_ID: transaction unique identifier of the previous rule (NLA_U32)
270  * @NFTA_RULE_CHAIN_ID: add the rule to chain by ID, alternative to @NFTA_RULE_CHAIN (NLA_U32)
271  */
272 enum nft_rule_attributes {
273 	NFTA_RULE_UNSPEC,
274 	NFTA_RULE_TABLE,
275 	NFTA_RULE_CHAIN,
276 	NFTA_RULE_HANDLE,
277 	NFTA_RULE_EXPRESSIONS,
278 	NFTA_RULE_COMPAT,
279 	NFTA_RULE_POSITION,
280 	NFTA_RULE_USERDATA,
281 	NFTA_RULE_PAD,
282 	NFTA_RULE_ID,
283 	NFTA_RULE_POSITION_ID,
284 	NFTA_RULE_CHAIN_ID,
285 	__NFTA_RULE_MAX
286 };
287 #define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
288 
289 /**
290  * enum nft_rule_compat_flags - nf_tables rule compat flags
291  *
292  * @NFT_RULE_COMPAT_F_UNUSED: unused
293  * @NFT_RULE_COMPAT_F_INV: invert the check result
294  */
295 enum nft_rule_compat_flags {
296 	NFT_RULE_COMPAT_F_UNUSED = (1 << 0),
297 	NFT_RULE_COMPAT_F_INV	= (1 << 1),
298 	NFT_RULE_COMPAT_F_MASK	= NFT_RULE_COMPAT_F_INV,
299 };
300 
301 /**
302  * enum nft_rule_compat_attributes - nf_tables rule compat attributes
303  *
304  * @NFTA_RULE_COMPAT_PROTO: numeric value of handled protocol (NLA_U32)
305  * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
306  */
307 enum nft_rule_compat_attributes {
308 	NFTA_RULE_COMPAT_UNSPEC,
309 	NFTA_RULE_COMPAT_PROTO,
310 	NFTA_RULE_COMPAT_FLAGS,
311 	__NFTA_RULE_COMPAT_MAX
312 };
313 #define NFTA_RULE_COMPAT_MAX	(__NFTA_RULE_COMPAT_MAX - 1)
314 
315 /**
316  * enum nft_set_flags - nf_tables set flags
317  *
318  * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
319  * @NFT_SET_CONSTANT: set contents may not change while bound
320  * @NFT_SET_INTERVAL: set contains intervals
321  * @NFT_SET_MAP: set is used as a dictionary
322  * @NFT_SET_TIMEOUT: set uses timeouts
323  * @NFT_SET_EVAL: set can be updated from the evaluation path
324  * @NFT_SET_OBJECT: set contains stateful objects
325  * @NFT_SET_CONCAT: set contains a concatenation
326  * @NFT_SET_EXPR: set contains expressions
327  */
328 enum nft_set_flags {
329 	NFT_SET_ANONYMOUS		= 0x1,
330 	NFT_SET_CONSTANT		= 0x2,
331 	NFT_SET_INTERVAL		= 0x4,
332 	NFT_SET_MAP			= 0x8,
333 	NFT_SET_TIMEOUT			= 0x10,
334 	NFT_SET_EVAL			= 0x20,
335 	NFT_SET_OBJECT			= 0x40,
336 	NFT_SET_CONCAT			= 0x80,
337 	NFT_SET_EXPR			= 0x100,
338 };
339 
340 /**
341  * enum nft_set_policies - set selection policy
342  *
343  * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
344  * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
345  */
346 enum nft_set_policies {
347 	NFT_SET_POL_PERFORMANCE,
348 	NFT_SET_POL_MEMORY,
349 };
350 
351 /**
352  * enum nft_set_desc_attributes - set element description
353  *
354  * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
355  * @NFTA_SET_DESC_CONCAT: description of field concatenation (NLA_NESTED)
356  */
357 enum nft_set_desc_attributes {
358 	NFTA_SET_DESC_UNSPEC,
359 	NFTA_SET_DESC_SIZE,
360 	NFTA_SET_DESC_CONCAT,
361 	__NFTA_SET_DESC_MAX
362 };
363 #define NFTA_SET_DESC_MAX	(__NFTA_SET_DESC_MAX - 1)
364 
365 /**
366  * enum nft_set_field_attributes - attributes of concatenated fields
367  *
368  * @NFTA_SET_FIELD_LEN: length of single field, in bits (NLA_U32)
369  */
370 enum nft_set_field_attributes {
371 	NFTA_SET_FIELD_UNSPEC,
372 	NFTA_SET_FIELD_LEN,
373 	__NFTA_SET_FIELD_MAX
374 };
375 #define NFTA_SET_FIELD_MAX	(__NFTA_SET_FIELD_MAX - 1)
376 
377 /**
378  * enum nft_set_attributes - nf_tables set netlink attributes
379  *
380  * @NFTA_SET_TABLE: table name (NLA_STRING)
381  * @NFTA_SET_NAME: set name (NLA_STRING)
382  * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
383  * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
384  * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
385  * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
386  * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
387  * @NFTA_SET_POLICY: selection policy (NLA_U32)
388  * @NFTA_SET_DESC: set description (NLA_NESTED)
389  * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
390  * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64)
391  * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32)
392  * @NFTA_SET_USERDATA: user data (NLA_BINARY)
393  * @NFTA_SET_OBJ_TYPE: stateful object type (NLA_U32: NFT_OBJECT_*)
394  * @NFTA_SET_HANDLE: set handle (NLA_U64)
395  * @NFTA_SET_EXPR: set expression (NLA_NESTED: nft_expr_attributes)
396  * @NFTA_SET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
397  */
398 enum nft_set_attributes {
399 	NFTA_SET_UNSPEC,
400 	NFTA_SET_TABLE,
401 	NFTA_SET_NAME,
402 	NFTA_SET_FLAGS,
403 	NFTA_SET_KEY_TYPE,
404 	NFTA_SET_KEY_LEN,
405 	NFTA_SET_DATA_TYPE,
406 	NFTA_SET_DATA_LEN,
407 	NFTA_SET_POLICY,
408 	NFTA_SET_DESC,
409 	NFTA_SET_ID,
410 	NFTA_SET_TIMEOUT,
411 	NFTA_SET_GC_INTERVAL,
412 	NFTA_SET_USERDATA,
413 	NFTA_SET_PAD,
414 	NFTA_SET_OBJ_TYPE,
415 	NFTA_SET_HANDLE,
416 	NFTA_SET_EXPR,
417 	NFTA_SET_EXPRESSIONS,
418 	__NFTA_SET_MAX
419 };
420 #define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)
421 
422 /**
423  * enum nft_set_elem_flags - nf_tables set element flags
424  *
425  * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
426  * @NFT_SET_ELEM_CATCHALL: special catch-all element
427  */
428 enum nft_set_elem_flags {
429 	NFT_SET_ELEM_INTERVAL_END	= 0x1,
430 	NFT_SET_ELEM_CATCHALL		= 0x2,
431 };
432 
433 /**
434  * enum nft_set_elem_attributes - nf_tables set element netlink attributes
435  *
436  * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
437  * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
438  * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
439  * @NFTA_SET_ELEM_TIMEOUT: timeout value, zero means never times out (NLA_U64)
440  * @NFTA_SET_ELEM_EXPIRATION: expiration time (NLA_U64)
441  * @NFTA_SET_ELEM_USERDATA: user data (NLA_BINARY)
442  * @NFTA_SET_ELEM_EXPR: expression (NLA_NESTED: nft_expr_attributes)
443  * @NFTA_SET_ELEM_OBJREF: stateful object reference (NLA_STRING)
444  * @NFTA_SET_ELEM_KEY_END: closing key value (NLA_NESTED: nft_data)
445  * @NFTA_SET_ELEM_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
446  */
447 enum nft_set_elem_attributes {
448 	NFTA_SET_ELEM_UNSPEC,
449 	NFTA_SET_ELEM_KEY,
450 	NFTA_SET_ELEM_DATA,
451 	NFTA_SET_ELEM_FLAGS,
452 	NFTA_SET_ELEM_TIMEOUT,
453 	NFTA_SET_ELEM_EXPIRATION,
454 	NFTA_SET_ELEM_USERDATA,
455 	NFTA_SET_ELEM_EXPR,
456 	NFTA_SET_ELEM_PAD,
457 	NFTA_SET_ELEM_OBJREF,
458 	NFTA_SET_ELEM_KEY_END,
459 	NFTA_SET_ELEM_EXPRESSIONS,
460 	__NFTA_SET_ELEM_MAX
461 };
462 #define NFTA_SET_ELEM_MAX	(__NFTA_SET_ELEM_MAX - 1)
463 
464 /**
465  * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
466  *
467  * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
468  * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
469  * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
470  * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
471  */
472 enum nft_set_elem_list_attributes {
473 	NFTA_SET_ELEM_LIST_UNSPEC,
474 	NFTA_SET_ELEM_LIST_TABLE,
475 	NFTA_SET_ELEM_LIST_SET,
476 	NFTA_SET_ELEM_LIST_ELEMENTS,
477 	NFTA_SET_ELEM_LIST_SET_ID,
478 	__NFTA_SET_ELEM_LIST_MAX
479 };
480 #define NFTA_SET_ELEM_LIST_MAX	(__NFTA_SET_ELEM_LIST_MAX - 1)
481 
482 /**
483  * enum nft_data_types - nf_tables data types
484  *
485  * @NFT_DATA_VALUE: generic data
486  * @NFT_DATA_VERDICT: netfilter verdict
487  *
488  * The type of data is usually determined by the kernel directly and is not
489  * explicitly specified by userspace. The only difference are sets, where
490  * userspace specifies the key and mapping data types.
491  *
492  * The values 0xffffff00-0xffffffff are reserved for internally used types.
493  * The remaining range can be freely used by userspace to encode types, all
494  * values are equivalent to NFT_DATA_VALUE.
495  */
496 enum nft_data_types {
497 	NFT_DATA_VALUE,
498 	NFT_DATA_VERDICT	= 0xffffff00U,
499 };
500 
501 #define NFT_DATA_RESERVED_MASK	0xffffff00U
502 
503 /**
504  * enum nft_data_attributes - nf_tables data netlink attributes
505  *
506  * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
507  * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
508  */
509 enum nft_data_attributes {
510 	NFTA_DATA_UNSPEC,
511 	NFTA_DATA_VALUE,
512 	NFTA_DATA_VERDICT,
513 	__NFTA_DATA_MAX
514 };
515 #define NFTA_DATA_MAX		(__NFTA_DATA_MAX - 1)
516 
517 /* Maximum length of a value */
518 #define NFT_DATA_VALUE_MAXLEN	64
519 
520 /**
521  * enum nft_verdict_attributes - nf_tables verdict netlink attributes
522  *
523  * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
524  * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
525  * @NFTA_VERDICT_CHAIN_ID: jump target chain ID (NLA_U32)
526  */
527 enum nft_verdict_attributes {
528 	NFTA_VERDICT_UNSPEC,
529 	NFTA_VERDICT_CODE,
530 	NFTA_VERDICT_CHAIN,
531 	NFTA_VERDICT_CHAIN_ID,
532 	__NFTA_VERDICT_MAX
533 };
534 #define NFTA_VERDICT_MAX	(__NFTA_VERDICT_MAX - 1)
535 
536 /**
537  * enum nft_expr_attributes - nf_tables expression netlink attributes
538  *
539  * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
540  * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
541  */
542 enum nft_expr_attributes {
543 	NFTA_EXPR_UNSPEC,
544 	NFTA_EXPR_NAME,
545 	NFTA_EXPR_DATA,
546 	__NFTA_EXPR_MAX
547 };
548 #define NFTA_EXPR_MAX		(__NFTA_EXPR_MAX - 1)
549 
550 /**
551  * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
552  *
553  * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
554  * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
555  */
556 enum nft_immediate_attributes {
557 	NFTA_IMMEDIATE_UNSPEC,
558 	NFTA_IMMEDIATE_DREG,
559 	NFTA_IMMEDIATE_DATA,
560 	__NFTA_IMMEDIATE_MAX
561 };
562 #define NFTA_IMMEDIATE_MAX	(__NFTA_IMMEDIATE_MAX - 1)
563 
564 /**
565  * enum nft_bitwise_ops - nf_tables bitwise operations
566  *
567  * @NFT_BITWISE_BOOL: mask-and-xor operation used to implement NOT, AND, OR and
568  *                    XOR boolean operations
569  * @NFT_BITWISE_LSHIFT: left-shift operation
570  * @NFT_BITWISE_RSHIFT: right-shift operation
571  */
572 enum nft_bitwise_ops {
573 	NFT_BITWISE_BOOL,
574 	NFT_BITWISE_LSHIFT,
575 	NFT_BITWISE_RSHIFT,
576 };
577 
578 /**
579  * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
580  *
581  * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
582  * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
583  * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
584  * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
585  * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
586  * @NFTA_BITWISE_OP: type of operation (NLA_U32: nft_bitwise_ops)
587  * @NFTA_BITWISE_DATA: argument for non-boolean operations
588  *                     (NLA_NESTED: nft_data_attributes)
589  *
590  * The bitwise expression supports boolean and shift operations.  It implements
591  * the boolean operations by performing the following operation:
592  *
593  * dreg = (sreg & mask) ^ xor
594  *
595  * with these mask and xor values:
596  *
597  * 		mask	xor
598  * NOT:		1	1
599  * OR:		~x	x
600  * XOR:		1	x
601  * AND:		x	0
602  */
603 enum nft_bitwise_attributes {
604 	NFTA_BITWISE_UNSPEC,
605 	NFTA_BITWISE_SREG,
606 	NFTA_BITWISE_DREG,
607 	NFTA_BITWISE_LEN,
608 	NFTA_BITWISE_MASK,
609 	NFTA_BITWISE_XOR,
610 	NFTA_BITWISE_OP,
611 	NFTA_BITWISE_DATA,
612 	__NFTA_BITWISE_MAX
613 };
614 #define NFTA_BITWISE_MAX	(__NFTA_BITWISE_MAX - 1)
615 
616 /**
617  * enum nft_byteorder_ops - nf_tables byteorder operators
618  *
619  * @NFT_BYTEORDER_NTOH: network to host operator
620  * @NFT_BYTEORDER_HTON: host to network operator
621  */
622 enum nft_byteorder_ops {
623 	NFT_BYTEORDER_NTOH,
624 	NFT_BYTEORDER_HTON,
625 };
626 
627 /**
628  * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
629  *
630  * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
631  * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
632  * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
633  * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
634  * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
635  */
636 enum nft_byteorder_attributes {
637 	NFTA_BYTEORDER_UNSPEC,
638 	NFTA_BYTEORDER_SREG,
639 	NFTA_BYTEORDER_DREG,
640 	NFTA_BYTEORDER_OP,
641 	NFTA_BYTEORDER_LEN,
642 	NFTA_BYTEORDER_SIZE,
643 	__NFTA_BYTEORDER_MAX
644 };
645 #define NFTA_BYTEORDER_MAX	(__NFTA_BYTEORDER_MAX - 1)
646 
647 /**
648  * enum nft_cmp_ops - nf_tables relational operator
649  *
650  * @NFT_CMP_EQ: equal
651  * @NFT_CMP_NEQ: not equal
652  * @NFT_CMP_LT: less than
653  * @NFT_CMP_LTE: less than or equal to
654  * @NFT_CMP_GT: greater than
655  * @NFT_CMP_GTE: greater than or equal to
656  */
657 enum nft_cmp_ops {
658 	NFT_CMP_EQ,
659 	NFT_CMP_NEQ,
660 	NFT_CMP_LT,
661 	NFT_CMP_LTE,
662 	NFT_CMP_GT,
663 	NFT_CMP_GTE,
664 };
665 
666 /**
667  * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
668  *
669  * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
670  * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
671  * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
672  */
673 enum nft_cmp_attributes {
674 	NFTA_CMP_UNSPEC,
675 	NFTA_CMP_SREG,
676 	NFTA_CMP_OP,
677 	NFTA_CMP_DATA,
678 	__NFTA_CMP_MAX
679 };
680 #define NFTA_CMP_MAX		(__NFTA_CMP_MAX - 1)
681 
682 /**
683  * enum nft_range_ops - nf_tables range operator
684  *
685  * @NFT_RANGE_EQ: equal
686  * @NFT_RANGE_NEQ: not equal
687  */
688 enum nft_range_ops {
689 	NFT_RANGE_EQ,
690 	NFT_RANGE_NEQ,
691 };
692 
693 /**
694  * enum nft_range_attributes - nf_tables range expression netlink attributes
695  *
696  * @NFTA_RANGE_SREG: source register of data to compare (NLA_U32: nft_registers)
697  * @NFTA_RANGE_OP: cmp operation (NLA_U32: nft_range_ops)
698  * @NFTA_RANGE_FROM_DATA: data range from (NLA_NESTED: nft_data_attributes)
699  * @NFTA_RANGE_TO_DATA: data range to (NLA_NESTED: nft_data_attributes)
700  */
701 enum nft_range_attributes {
702 	NFTA_RANGE_UNSPEC,
703 	NFTA_RANGE_SREG,
704 	NFTA_RANGE_OP,
705 	NFTA_RANGE_FROM_DATA,
706 	NFTA_RANGE_TO_DATA,
707 	__NFTA_RANGE_MAX
708 };
709 #define NFTA_RANGE_MAX		(__NFTA_RANGE_MAX - 1)
710 
711 enum nft_lookup_flags {
712 	NFT_LOOKUP_F_INV = (1 << 0),
713 };
714 
715 /**
716  * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
717  *
718  * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
719  * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
720  * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
721  * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
722  * @NFTA_LOOKUP_FLAGS: flags (NLA_U32: enum nft_lookup_flags)
723  */
724 enum nft_lookup_attributes {
725 	NFTA_LOOKUP_UNSPEC,
726 	NFTA_LOOKUP_SET,
727 	NFTA_LOOKUP_SREG,
728 	NFTA_LOOKUP_DREG,
729 	NFTA_LOOKUP_SET_ID,
730 	NFTA_LOOKUP_FLAGS,
731 	__NFTA_LOOKUP_MAX
732 };
733 #define NFTA_LOOKUP_MAX		(__NFTA_LOOKUP_MAX - 1)
734 
735 enum nft_dynset_ops {
736 	NFT_DYNSET_OP_ADD,
737 	NFT_DYNSET_OP_UPDATE,
738 	NFT_DYNSET_OP_DELETE,
739 };
740 
741 enum nft_dynset_flags {
742 	NFT_DYNSET_F_INV	= (1 << 0),
743 	NFT_DYNSET_F_EXPR	= (1 << 1),
744 };
745 
746 /**
747  * enum nft_dynset_attributes - dynset expression attributes
748  *
749  * @NFTA_DYNSET_SET_NAME: name of set the to add data to (NLA_STRING)
750  * @NFTA_DYNSET_SET_ID: uniquely identifier of the set in the transaction (NLA_U32)
751  * @NFTA_DYNSET_OP: operation (NLA_U32)
752  * @NFTA_DYNSET_SREG_KEY: source register of the key (NLA_U32)
753  * @NFTA_DYNSET_SREG_DATA: source register of the data (NLA_U32)
754  * @NFTA_DYNSET_TIMEOUT: timeout value for the new element (NLA_U64)
755  * @NFTA_DYNSET_EXPR: expression (NLA_NESTED: nft_expr_attributes)
756  * @NFTA_DYNSET_FLAGS: flags (NLA_U32)
757  * @NFTA_DYNSET_EXPRESSIONS: list of expressions (NLA_NESTED: nft_list_attributes)
758  */
759 enum nft_dynset_attributes {
760 	NFTA_DYNSET_UNSPEC,
761 	NFTA_DYNSET_SET_NAME,
762 	NFTA_DYNSET_SET_ID,
763 	NFTA_DYNSET_OP,
764 	NFTA_DYNSET_SREG_KEY,
765 	NFTA_DYNSET_SREG_DATA,
766 	NFTA_DYNSET_TIMEOUT,
767 	NFTA_DYNSET_EXPR,
768 	NFTA_DYNSET_PAD,
769 	NFTA_DYNSET_FLAGS,
770 	NFTA_DYNSET_EXPRESSIONS,
771 	__NFTA_DYNSET_MAX,
772 };
773 #define NFTA_DYNSET_MAX		(__NFTA_DYNSET_MAX - 1)
774 
775 /**
776  * enum nft_payload_bases - nf_tables payload expression offset bases
777  *
778  * @NFT_PAYLOAD_LL_HEADER: link layer header
779  * @NFT_PAYLOAD_NETWORK_HEADER: network header
780  * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
781  * @NFT_PAYLOAD_INNER_HEADER: inner header / payload
782  */
783 enum nft_payload_bases {
784 	NFT_PAYLOAD_LL_HEADER,
785 	NFT_PAYLOAD_NETWORK_HEADER,
786 	NFT_PAYLOAD_TRANSPORT_HEADER,
787 	NFT_PAYLOAD_INNER_HEADER,
788 	NFT_PAYLOAD_TUN_HEADER,
789 };
790 
791 /**
792  * enum nft_payload_csum_types - nf_tables payload expression checksum types
793  *
794  * @NFT_PAYLOAD_CSUM_NONE: no checksumming
795  * @NFT_PAYLOAD_CSUM_INET: internet checksum (RFC 791)
796  * @NFT_PAYLOAD_CSUM_SCTP: CRC-32c, for use in SCTP header (RFC 3309)
797  */
798 enum nft_payload_csum_types {
799 	NFT_PAYLOAD_CSUM_NONE,
800 	NFT_PAYLOAD_CSUM_INET,
801 	NFT_PAYLOAD_CSUM_SCTP,
802 };
803 
804 enum nft_payload_csum_flags {
805 	NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0),
806 };
807 
808 enum nft_inner_type {
809 	NFT_INNER_UNSPEC	= 0,
810 	NFT_INNER_VXLAN,
811 	NFT_INNER_GENEVE,
812 };
813 
814 enum nft_inner_flags {
815 	NFT_INNER_HDRSIZE	= (1 << 0),
816 	NFT_INNER_LL		= (1 << 1),
817 	NFT_INNER_NH		= (1 << 2),
818 	NFT_INNER_TH		= (1 << 3),
819 };
820 #define NFT_INNER_MASK		(NFT_INNER_HDRSIZE | NFT_INNER_LL | \
821 				 NFT_INNER_NH | NFT_INNER_TH)
822 
823 enum nft_inner_attributes {
824 	NFTA_INNER_UNSPEC,
825 	NFTA_INNER_NUM,
826 	NFTA_INNER_TYPE,
827 	NFTA_INNER_FLAGS,
828 	NFTA_INNER_HDRSIZE,
829 	NFTA_INNER_EXPR,
830 	__NFTA_INNER_MAX
831 };
832 #define NFTA_INNER_MAX	(__NFTA_INNER_MAX - 1)
833 
834 /**
835  * enum nft_payload_attributes - nf_tables payload expression netlink attributes
836  *
837  * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
838  * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
839  * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
840  * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
841  * @NFTA_PAYLOAD_SREG: source register to load data from (NLA_U32: nft_registers)
842  * @NFTA_PAYLOAD_CSUM_TYPE: checksum type (NLA_U32)
843  * @NFTA_PAYLOAD_CSUM_OFFSET: checksum offset relative to base (NLA_U32)
844  * @NFTA_PAYLOAD_CSUM_FLAGS: checksum flags (NLA_U32)
845  */
846 enum nft_payload_attributes {
847 	NFTA_PAYLOAD_UNSPEC,
848 	NFTA_PAYLOAD_DREG,
849 	NFTA_PAYLOAD_BASE,
850 	NFTA_PAYLOAD_OFFSET,
851 	NFTA_PAYLOAD_LEN,
852 	NFTA_PAYLOAD_SREG,
853 	NFTA_PAYLOAD_CSUM_TYPE,
854 	NFTA_PAYLOAD_CSUM_OFFSET,
855 	NFTA_PAYLOAD_CSUM_FLAGS,
856 	__NFTA_PAYLOAD_MAX
857 };
858 #define NFTA_PAYLOAD_MAX	(__NFTA_PAYLOAD_MAX - 1)
859 
860 enum nft_exthdr_flags {
861 	NFT_EXTHDR_F_PRESENT = (1 << 0),
862 };
863 
864 /**
865  * enum nft_exthdr_op - nf_tables match options
866  *
867  * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers
868  * @NFT_EXTHDR_OP_TCP: match against tcp options
869  * @NFT_EXTHDR_OP_IPV4: match against ipv4 options
870  * @NFT_EXTHDR_OP_SCTP: match against sctp chunks
871  * @NFT_EXTHDR_OP_DCCP: match against dccp otions
872  */
873 enum nft_exthdr_op {
874 	NFT_EXTHDR_OP_IPV6,
875 	NFT_EXTHDR_OP_TCPOPT,
876 	NFT_EXTHDR_OP_IPV4,
877 	NFT_EXTHDR_OP_SCTP,
878 	NFT_EXTHDR_OP_DCCP,
879 	__NFT_EXTHDR_OP_MAX
880 };
881 #define NFT_EXTHDR_OP_MAX	(__NFT_EXTHDR_OP_MAX - 1)
882 
883 /**
884  * enum nft_exthdr_attributes - nf_tables extension header expression netlink attributes
885  *
886  * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
887  * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
888  * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
889  * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
890  * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32)
891  * @NFTA_EXTHDR_OP: option match type (NLA_U32)
892  * @NFTA_EXTHDR_SREG: source register (NLA_U32: nft_registers)
893  */
894 enum nft_exthdr_attributes {
895 	NFTA_EXTHDR_UNSPEC,
896 	NFTA_EXTHDR_DREG,
897 	NFTA_EXTHDR_TYPE,
898 	NFTA_EXTHDR_OFFSET,
899 	NFTA_EXTHDR_LEN,
900 	NFTA_EXTHDR_FLAGS,
901 	NFTA_EXTHDR_OP,
902 	NFTA_EXTHDR_SREG,
903 	__NFTA_EXTHDR_MAX
904 };
905 #define NFTA_EXTHDR_MAX		(__NFTA_EXTHDR_MAX - 1)
906 
907 /**
908  * enum nft_meta_keys - nf_tables meta expression keys
909  *
910  * @NFT_META_LEN: packet length (skb->len)
911  * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
912  * @NFT_META_PRIORITY: packet priority (skb->priority)
913  * @NFT_META_MARK: packet mark (skb->mark)
914  * @NFT_META_IIF: packet input interface index (dev->ifindex)
915  * @NFT_META_OIF: packet output interface index (dev->ifindex)
916  * @NFT_META_IIFNAME: packet input interface name (dev->name)
917  * @NFT_META_OIFNAME: packet output interface name (dev->name)
918  * @NFT_META_IIFTYPE: packet input interface type (dev->type)
919  * @NFT_META_OIFTYPE: packet output interface type (dev->type)
920  * @NFT_META_SKUID: originating socket UID (fsuid)
921  * @NFT_META_SKGID: originating socket GID (fsgid)
922  * @NFT_META_NFTRACE: packet nftrace bit
923  * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
924  * @NFT_META_SECMARK: packet secmark (skb->secmark)
925  * @NFT_META_NFPROTO: netfilter protocol
926  * @NFT_META_L4PROTO: layer 4 protocol number
927  * @NFT_META_BRI_IIFNAME: packet input bridge interface name
928  * @NFT_META_BRI_OIFNAME: packet output bridge interface name
929  * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
930  * @NFT_META_CPU: cpu id through smp_processor_id()
931  * @NFT_META_IIFGROUP: packet input interface group
932  * @NFT_META_OIFGROUP: packet output interface group
933  * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
934  * @NFT_META_PRANDOM: a 32bit pseudo-random number
935  * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
936  * @NFT_META_IIFKIND: packet input interface kind name (dev->rtnl_link_ops->kind)
937  * @NFT_META_OIFKIND: packet output interface kind name (dev->rtnl_link_ops->kind)
938  * @NFT_META_BRI_IIFPVID: packet input bridge port pvid
939  * @NFT_META_BRI_IIFVPROTO: packet input bridge vlan proto
940  * @NFT_META_TIME_NS: time since epoch (in nanoseconds)
941  * @NFT_META_TIME_DAY: day of week (from 0 = Sunday to 6 = Saturday)
942  * @NFT_META_TIME_HOUR: hour of day (in seconds)
943  * @NFT_META_SDIF: slave device interface index
944  * @NFT_META_SDIFNAME: slave device interface name
945  * @NFT_META_BRI_BROUTE: packet br_netfilter_broute bit
946  */
947 enum nft_meta_keys {
948 	NFT_META_LEN,
949 	NFT_META_PROTOCOL,
950 	NFT_META_PRIORITY,
951 	NFT_META_MARK,
952 	NFT_META_IIF,
953 	NFT_META_OIF,
954 	NFT_META_IIFNAME,
955 	NFT_META_OIFNAME,
956 	NFT_META_IFTYPE,
957 #define NFT_META_IIFTYPE	NFT_META_IFTYPE
958 	NFT_META_OIFTYPE,
959 	NFT_META_SKUID,
960 	NFT_META_SKGID,
961 	NFT_META_NFTRACE,
962 	NFT_META_RTCLASSID,
963 	NFT_META_SECMARK,
964 	NFT_META_NFPROTO,
965 	NFT_META_L4PROTO,
966 	NFT_META_BRI_IIFNAME,
967 	NFT_META_BRI_OIFNAME,
968 	NFT_META_PKTTYPE,
969 	NFT_META_CPU,
970 	NFT_META_IIFGROUP,
971 	NFT_META_OIFGROUP,
972 	NFT_META_CGROUP,
973 	NFT_META_PRANDOM,
974 	NFT_META_SECPATH,
975 	NFT_META_IIFKIND,
976 	NFT_META_OIFKIND,
977 	NFT_META_BRI_IIFPVID,
978 	NFT_META_BRI_IIFVPROTO,
979 	NFT_META_TIME_NS,
980 	NFT_META_TIME_DAY,
981 	NFT_META_TIME_HOUR,
982 	NFT_META_SDIF,
983 	NFT_META_SDIFNAME,
984 	NFT_META_BRI_BROUTE,
985 	__NFT_META_IIFTYPE,
986 };
987 
988 /**
989  * enum nft_rt_keys - nf_tables routing expression keys
990  *
991  * @NFT_RT_CLASSID: realm value of packet's route (skb->dst->tclassid)
992  * @NFT_RT_NEXTHOP4: routing nexthop for IPv4
993  * @NFT_RT_NEXTHOP6: routing nexthop for IPv6
994  * @NFT_RT_TCPMSS: fetch current path tcp mss
995  * @NFT_RT_XFRM: boolean, skb->dst->xfrm != NULL
996  */
997 enum nft_rt_keys {
998 	NFT_RT_CLASSID,
999 	NFT_RT_NEXTHOP4,
1000 	NFT_RT_NEXTHOP6,
1001 	NFT_RT_TCPMSS,
1002 	NFT_RT_XFRM,
1003 	__NFT_RT_MAX
1004 };
1005 #define NFT_RT_MAX		(__NFT_RT_MAX - 1)
1006 
1007 /**
1008  * enum nft_hash_types - nf_tables hash expression types
1009  *
1010  * @NFT_HASH_JENKINS: Jenkins Hash
1011  * @NFT_HASH_SYM: Symmetric Hash
1012  */
1013 enum nft_hash_types {
1014 	NFT_HASH_JENKINS,
1015 	NFT_HASH_SYM,
1016 };
1017 
1018 /**
1019  * enum nft_hash_attributes - nf_tables hash expression netlink attributes
1020  *
1021  * @NFTA_HASH_SREG: source register (NLA_U32)
1022  * @NFTA_HASH_DREG: destination register (NLA_U32)
1023  * @NFTA_HASH_LEN: source data length (NLA_U32)
1024  * @NFTA_HASH_MODULUS: modulus value (NLA_U32)
1025  * @NFTA_HASH_SEED: seed value (NLA_U32)
1026  * @NFTA_HASH_OFFSET: add this offset value to hash result (NLA_U32)
1027  * @NFTA_HASH_TYPE: hash operation (NLA_U32: nft_hash_types)
1028  * @NFTA_HASH_SET_NAME: name of the map to lookup (NLA_STRING)
1029  * @NFTA_HASH_SET_ID: id of the map (NLA_U32)
1030  */
1031 enum nft_hash_attributes {
1032 	NFTA_HASH_UNSPEC,
1033 	NFTA_HASH_SREG,
1034 	NFTA_HASH_DREG,
1035 	NFTA_HASH_LEN,
1036 	NFTA_HASH_MODULUS,
1037 	NFTA_HASH_SEED,
1038 	NFTA_HASH_OFFSET,
1039 	NFTA_HASH_TYPE,
1040 	NFTA_HASH_SET_NAME,	/* deprecated */
1041 	NFTA_HASH_SET_ID,	/* deprecated */
1042 	__NFTA_HASH_MAX,
1043 };
1044 #define NFTA_HASH_MAX	(__NFTA_HASH_MAX - 1)
1045 
1046 /**
1047  * enum nft_meta_attributes - nf_tables meta expression netlink attributes
1048  *
1049  * @NFTA_META_DREG: destination register (NLA_U32)
1050  * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
1051  * @NFTA_META_SREG: source register (NLA_U32)
1052  */
1053 enum nft_meta_attributes {
1054 	NFTA_META_UNSPEC,
1055 	NFTA_META_DREG,
1056 	NFTA_META_KEY,
1057 	NFTA_META_SREG,
1058 	__NFTA_META_MAX
1059 };
1060 #define NFTA_META_MAX		(__NFTA_META_MAX - 1)
1061 
1062 /**
1063  * enum nft_rt_attributes - nf_tables routing expression netlink attributes
1064  *
1065  * @NFTA_RT_DREG: destination register (NLA_U32)
1066  * @NFTA_RT_KEY: routing data item to load (NLA_U32: nft_rt_keys)
1067  */
1068 enum nft_rt_attributes {
1069 	NFTA_RT_UNSPEC,
1070 	NFTA_RT_DREG,
1071 	NFTA_RT_KEY,
1072 	__NFTA_RT_MAX
1073 };
1074 #define NFTA_RT_MAX		(__NFTA_RT_MAX - 1)
1075 
1076 /**
1077  * enum nft_socket_attributes - nf_tables socket expression netlink attributes
1078  *
1079  * @NFTA_SOCKET_KEY: socket key to match
1080  * @NFTA_SOCKET_DREG: destination register
1081  * @NFTA_SOCKET_LEVEL: cgroups2 ancestor level (only for cgroupsv2)
1082  */
1083 enum nft_socket_attributes {
1084 	NFTA_SOCKET_UNSPEC,
1085 	NFTA_SOCKET_KEY,
1086 	NFTA_SOCKET_DREG,
1087 	NFTA_SOCKET_LEVEL,
1088 	__NFTA_SOCKET_MAX
1089 };
1090 #define NFTA_SOCKET_MAX		(__NFTA_SOCKET_MAX - 1)
1091 
1092 /*
1093  * enum nft_socket_keys - nf_tables socket expression keys
1094  *
1095  * @NFT_SOCKET_TRANSPARENT: Value of the IP(V6)_TRANSPARENT socket option
1096  * @NFT_SOCKET_MARK: Value of the socket mark
1097  * @NFT_SOCKET_WILDCARD: Whether the socket is zero-bound (e.g. 0.0.0.0 or ::0)
1098  * @NFT_SOCKET_CGROUPV2: Match on cgroups version 2
1099  */
1100 enum nft_socket_keys {
1101 	NFT_SOCKET_TRANSPARENT,
1102 	NFT_SOCKET_MARK,
1103 	NFT_SOCKET_WILDCARD,
1104 	NFT_SOCKET_CGROUPV2,
1105 	__NFT_SOCKET_MAX
1106 };
1107 #define NFT_SOCKET_MAX	(__NFT_SOCKET_MAX - 1)
1108 
1109 /**
1110  * enum nft_ct_keys - nf_tables ct expression keys
1111  *
1112  * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
1113  * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
1114  * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
1115  * @NFT_CT_MARK: conntrack mark value
1116  * @NFT_CT_SECMARK: conntrack secmark value
1117  * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
1118  * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
1119  * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
1120  * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address, deprecated)
1121  * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address, deprecated)
1122  * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
1123  * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
1124  * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
1125  * @NFT_CT_LABELS: conntrack labels
1126  * @NFT_CT_PKTS: conntrack packets
1127  * @NFT_CT_BYTES: conntrack bytes
1128  * @NFT_CT_AVGPKT: conntrack average bytes per packet
1129  * @NFT_CT_ZONE: conntrack zone
1130  * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack
1131  * @NFT_CT_SRC_IP: conntrack layer 3 protocol source (IPv4 address)
1132  * @NFT_CT_DST_IP: conntrack layer 3 protocol destination (IPv4 address)
1133  * @NFT_CT_SRC_IP6: conntrack layer 3 protocol source (IPv6 address)
1134  * @NFT_CT_DST_IP6: conntrack layer 3 protocol destination (IPv6 address)
1135  * @NFT_CT_ID: conntrack id
1136  */
1137 enum nft_ct_keys {
1138 	NFT_CT_STATE,
1139 	NFT_CT_DIRECTION,
1140 	NFT_CT_STATUS,
1141 	NFT_CT_MARK,
1142 	NFT_CT_SECMARK,
1143 	NFT_CT_EXPIRATION,
1144 	NFT_CT_HELPER,
1145 	NFT_CT_L3PROTOCOL,
1146 	NFT_CT_SRC,
1147 	NFT_CT_DST,
1148 	NFT_CT_PROTOCOL,
1149 	NFT_CT_PROTO_SRC,
1150 	NFT_CT_PROTO_DST,
1151 	NFT_CT_LABELS,
1152 	NFT_CT_PKTS,
1153 	NFT_CT_BYTES,
1154 	NFT_CT_AVGPKT,
1155 	NFT_CT_ZONE,
1156 	NFT_CT_EVENTMASK,
1157 	NFT_CT_SRC_IP,
1158 	NFT_CT_DST_IP,
1159 	NFT_CT_SRC_IP6,
1160 	NFT_CT_DST_IP6,
1161 	NFT_CT_ID,
1162 	__NFT_CT_MAX
1163 };
1164 #define NFT_CT_MAX		(__NFT_CT_MAX - 1)
1165 
1166 /**
1167  * enum nft_ct_attributes - nf_tables ct expression netlink attributes
1168  *
1169  * @NFTA_CT_DREG: destination register (NLA_U32)
1170  * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
1171  * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
1172  * @NFTA_CT_SREG: source register (NLA_U32)
1173  */
1174 enum nft_ct_attributes {
1175 	NFTA_CT_UNSPEC,
1176 	NFTA_CT_DREG,
1177 	NFTA_CT_KEY,
1178 	NFTA_CT_DIRECTION,
1179 	NFTA_CT_SREG,
1180 	__NFTA_CT_MAX
1181 };
1182 #define NFTA_CT_MAX		(__NFTA_CT_MAX - 1)
1183 
1184 /**
1185  * enum nft_flow_attributes - ct offload expression attributes
1186  * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
1187  */
1188 enum nft_offload_attributes {
1189 	NFTA_FLOW_UNSPEC,
1190 	NFTA_FLOW_TABLE_NAME,
1191 	__NFTA_FLOW_MAX,
1192 };
1193 #define NFTA_FLOW_MAX		(__NFTA_FLOW_MAX - 1)
1194 
1195 enum nft_limit_type {
1196 	NFT_LIMIT_PKTS,
1197 	NFT_LIMIT_PKT_BYTES
1198 };
1199 
1200 enum nft_limit_flags {
1201 	NFT_LIMIT_F_INV	= (1 << 0),
1202 };
1203 
1204 /**
1205  * enum nft_limit_attributes - nf_tables limit expression netlink attributes
1206  *
1207  * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
1208  * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
1209  * @NFTA_LIMIT_BURST: burst (NLA_U32)
1210  * @NFTA_LIMIT_TYPE: type of limit (NLA_U32: enum nft_limit_type)
1211  * @NFTA_LIMIT_FLAGS: flags (NLA_U32: enum nft_limit_flags)
1212  */
1213 enum nft_limit_attributes {
1214 	NFTA_LIMIT_UNSPEC,
1215 	NFTA_LIMIT_RATE,
1216 	NFTA_LIMIT_UNIT,
1217 	NFTA_LIMIT_BURST,
1218 	NFTA_LIMIT_TYPE,
1219 	NFTA_LIMIT_FLAGS,
1220 	NFTA_LIMIT_PAD,
1221 	__NFTA_LIMIT_MAX
1222 };
1223 #define NFTA_LIMIT_MAX		(__NFTA_LIMIT_MAX - 1)
1224 
1225 enum nft_connlimit_flags {
1226 	NFT_CONNLIMIT_F_INV	= (1 << 0),
1227 };
1228 
1229 /**
1230  * enum nft_connlimit_attributes - nf_tables connlimit expression netlink attributes
1231  *
1232  * @NFTA_CONNLIMIT_COUNT: number of connections (NLA_U32)
1233  * @NFTA_CONNLIMIT_FLAGS: flags (NLA_U32: enum nft_connlimit_flags)
1234  */
1235 enum nft_connlimit_attributes {
1236 	NFTA_CONNLIMIT_UNSPEC,
1237 	NFTA_CONNLIMIT_COUNT,
1238 	NFTA_CONNLIMIT_FLAGS,
1239 	__NFTA_CONNLIMIT_MAX
1240 };
1241 #define NFTA_CONNLIMIT_MAX	(__NFTA_CONNLIMIT_MAX - 1)
1242 
1243 /**
1244  * enum nft_counter_attributes - nf_tables counter expression netlink attributes
1245  *
1246  * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
1247  * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
1248  */
1249 enum nft_counter_attributes {
1250 	NFTA_COUNTER_UNSPEC,
1251 	NFTA_COUNTER_BYTES,
1252 	NFTA_COUNTER_PACKETS,
1253 	NFTA_COUNTER_PAD,
1254 	__NFTA_COUNTER_MAX
1255 };
1256 #define NFTA_COUNTER_MAX	(__NFTA_COUNTER_MAX - 1)
1257 
1258 /**
1259  * enum nft_last_attributes - nf_tables last expression netlink attributes
1260  *
1261  * @NFTA_LAST_SET: last update has been set, zero means never updated (NLA_U32)
1262  * @NFTA_LAST_MSECS: milliseconds since last update (NLA_U64)
1263  */
1264 enum nft_last_attributes {
1265 	NFTA_LAST_UNSPEC,
1266 	NFTA_LAST_SET,
1267 	NFTA_LAST_MSECS,
1268 	NFTA_LAST_PAD,
1269 	__NFTA_LAST_MAX
1270 };
1271 #define NFTA_LAST_MAX	(__NFTA_LAST_MAX - 1)
1272 
1273 /**
1274  * enum nft_log_attributes - nf_tables log expression netlink attributes
1275  *
1276  * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U16)
1277  * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
1278  * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
1279  * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U16)
1280  * @NFTA_LOG_LEVEL: log level (NLA_U32)
1281  * @NFTA_LOG_FLAGS: logging flags (NLA_U32)
1282  */
1283 enum nft_log_attributes {
1284 	NFTA_LOG_UNSPEC,
1285 	NFTA_LOG_GROUP,
1286 	NFTA_LOG_PREFIX,
1287 	NFTA_LOG_SNAPLEN,
1288 	NFTA_LOG_QTHRESHOLD,
1289 	NFTA_LOG_LEVEL,
1290 	NFTA_LOG_FLAGS,
1291 	__NFTA_LOG_MAX
1292 };
1293 #define NFTA_LOG_MAX		(__NFTA_LOG_MAX - 1)
1294 
1295 /**
1296  * enum nft_log_level - nf_tables log levels
1297  *
1298  * @NFT_LOGLEVEL_EMERG: system is unusable
1299  * @NFT_LOGLEVEL_ALERT: action must be taken immediately
1300  * @NFT_LOGLEVEL_CRIT: critical conditions
1301  * @NFT_LOGLEVEL_ERR: error conditions
1302  * @NFT_LOGLEVEL_WARNING: warning conditions
1303  * @NFT_LOGLEVEL_NOTICE: normal but significant condition
1304  * @NFT_LOGLEVEL_INFO: informational
1305  * @NFT_LOGLEVEL_DEBUG: debug-level messages
1306  * @NFT_LOGLEVEL_AUDIT: enabling audit logging
1307  */
1308 enum nft_log_level {
1309 	NFT_LOGLEVEL_EMERG,
1310 	NFT_LOGLEVEL_ALERT,
1311 	NFT_LOGLEVEL_CRIT,
1312 	NFT_LOGLEVEL_ERR,
1313 	NFT_LOGLEVEL_WARNING,
1314 	NFT_LOGLEVEL_NOTICE,
1315 	NFT_LOGLEVEL_INFO,
1316 	NFT_LOGLEVEL_DEBUG,
1317 	NFT_LOGLEVEL_AUDIT,
1318 	__NFT_LOGLEVEL_MAX
1319 };
1320 #define NFT_LOGLEVEL_MAX	(__NFT_LOGLEVEL_MAX - 1)
1321 
1322 /**
1323  * enum nft_queue_attributes - nf_tables queue expression netlink attributes
1324  *
1325  * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
1326  * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
1327  * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
1328  * @NFTA_QUEUE_SREG_QNUM: source register of queue number (NLA_U32: nft_registers)
1329  */
1330 enum nft_queue_attributes {
1331 	NFTA_QUEUE_UNSPEC,
1332 	NFTA_QUEUE_NUM,
1333 	NFTA_QUEUE_TOTAL,
1334 	NFTA_QUEUE_FLAGS,
1335 	NFTA_QUEUE_SREG_QNUM,
1336 	__NFTA_QUEUE_MAX
1337 };
1338 #define NFTA_QUEUE_MAX		(__NFTA_QUEUE_MAX - 1)
1339 
1340 #define NFT_QUEUE_FLAG_BYPASS		0x01 /* for compatibility with v2 */
1341 #define NFT_QUEUE_FLAG_CPU_FANOUT	0x02 /* use current CPU (no hashing) */
1342 #define NFT_QUEUE_FLAG_MASK		0x03
1343 
1344 enum nft_quota_flags {
1345 	NFT_QUOTA_F_INV		= (1 << 0),
1346 	NFT_QUOTA_F_DEPLETED	= (1 << 1),
1347 };
1348 
1349 /**
1350  * enum nft_quota_attributes - nf_tables quota expression netlink attributes
1351  *
1352  * @NFTA_QUOTA_BYTES: quota in bytes (NLA_U16)
1353  * @NFTA_QUOTA_FLAGS: flags (NLA_U32)
1354  * @NFTA_QUOTA_CONSUMED: quota already consumed in bytes (NLA_U64)
1355  */
1356 enum nft_quota_attributes {
1357 	NFTA_QUOTA_UNSPEC,
1358 	NFTA_QUOTA_BYTES,
1359 	NFTA_QUOTA_FLAGS,
1360 	NFTA_QUOTA_PAD,
1361 	NFTA_QUOTA_CONSUMED,
1362 	__NFTA_QUOTA_MAX
1363 };
1364 #define NFTA_QUOTA_MAX		(__NFTA_QUOTA_MAX - 1)
1365 
1366 /**
1367  * enum nft_secmark_attributes - nf_tables secmark object netlink attributes
1368  *
1369  * @NFTA_SECMARK_CTX: security context (NLA_STRING)
1370  */
1371 enum nft_secmark_attributes {
1372 	NFTA_SECMARK_UNSPEC,
1373 	NFTA_SECMARK_CTX,
1374 	__NFTA_SECMARK_MAX,
1375 };
1376 #define NFTA_SECMARK_MAX	(__NFTA_SECMARK_MAX - 1)
1377 
1378 /* Max security context length */
1379 #define NFT_SECMARK_CTX_MAXLEN		4096
1380 
1381 /**
1382  * enum nft_reject_types - nf_tables reject expression reject types
1383  *
1384  * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
1385  * @NFT_REJECT_TCP_RST: reject using TCP RST
1386  * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
1387  */
1388 enum nft_reject_types {
1389 	NFT_REJECT_ICMP_UNREACH,
1390 	NFT_REJECT_TCP_RST,
1391 	NFT_REJECT_ICMPX_UNREACH,
1392 };
1393 
1394 /**
1395  * enum nft_reject_code - Generic reject codes for IPv4/IPv6
1396  *
1397  * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
1398  * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
1399  * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
1400  * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
1401  *
1402  * These codes are mapped to real ICMP and ICMPv6 codes.
1403  */
1404 enum nft_reject_inet_code {
1405 	NFT_REJECT_ICMPX_NO_ROUTE	= 0,
1406 	NFT_REJECT_ICMPX_PORT_UNREACH,
1407 	NFT_REJECT_ICMPX_HOST_UNREACH,
1408 	NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
1409 	__NFT_REJECT_ICMPX_MAX
1410 };
1411 #define NFT_REJECT_ICMPX_MAX	(__NFT_REJECT_ICMPX_MAX - 1)
1412 
1413 /**
1414  * enum nft_reject_attributes - nf_tables reject expression netlink attributes
1415  *
1416  * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
1417  * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
1418  */
1419 enum nft_reject_attributes {
1420 	NFTA_REJECT_UNSPEC,
1421 	NFTA_REJECT_TYPE,
1422 	NFTA_REJECT_ICMP_CODE,
1423 	__NFTA_REJECT_MAX
1424 };
1425 #define NFTA_REJECT_MAX		(__NFTA_REJECT_MAX - 1)
1426 
1427 /**
1428  * enum nft_nat_types - nf_tables nat expression NAT types
1429  *
1430  * @NFT_NAT_SNAT: source NAT
1431  * @NFT_NAT_DNAT: destination NAT
1432  */
1433 enum nft_nat_types {
1434 	NFT_NAT_SNAT,
1435 	NFT_NAT_DNAT,
1436 };
1437 
1438 /**
1439  * enum nft_nat_attributes - nf_tables nat expression netlink attributes
1440  *
1441  * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
1442  * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
1443  * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
1444  * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
1445  * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1446  * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1447  * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1448  */
1449 enum nft_nat_attributes {
1450 	NFTA_NAT_UNSPEC,
1451 	NFTA_NAT_TYPE,
1452 	NFTA_NAT_FAMILY,
1453 	NFTA_NAT_REG_ADDR_MIN,
1454 	NFTA_NAT_REG_ADDR_MAX,
1455 	NFTA_NAT_REG_PROTO_MIN,
1456 	NFTA_NAT_REG_PROTO_MAX,
1457 	NFTA_NAT_FLAGS,
1458 	__NFTA_NAT_MAX
1459 };
1460 #define NFTA_NAT_MAX		(__NFTA_NAT_MAX - 1)
1461 
1462 /**
1463  * enum nft_tproxy_attributes - nf_tables tproxy expression netlink attributes
1464  *
1465  * NFTA_TPROXY_FAMILY: Target address family (NLA_U32: nft_registers)
1466  * NFTA_TPROXY_REG_ADDR: Target address register (NLA_U32: nft_registers)
1467  * NFTA_TPROXY_REG_PORT: Target port register (NLA_U32: nft_registers)
1468  */
1469 enum nft_tproxy_attributes {
1470 	NFTA_TPROXY_UNSPEC,
1471 	NFTA_TPROXY_FAMILY,
1472 	NFTA_TPROXY_REG_ADDR,
1473 	NFTA_TPROXY_REG_PORT,
1474 	__NFTA_TPROXY_MAX
1475 };
1476 #define NFTA_TPROXY_MAX		(__NFTA_TPROXY_MAX - 1)
1477 
1478 /**
1479  * enum nft_masq_attributes - nf_tables masquerade expression attributes
1480  *
1481  * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1482  * @NFTA_MASQ_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1483  * @NFTA_MASQ_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1484  */
1485 enum nft_masq_attributes {
1486 	NFTA_MASQ_UNSPEC,
1487 	NFTA_MASQ_FLAGS,
1488 	NFTA_MASQ_REG_PROTO_MIN,
1489 	NFTA_MASQ_REG_PROTO_MAX,
1490 	__NFTA_MASQ_MAX
1491 };
1492 #define NFTA_MASQ_MAX		(__NFTA_MASQ_MAX - 1)
1493 
1494 /**
1495  * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
1496  *
1497  * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
1498  * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
1499  * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
1500  */
1501 enum nft_redir_attributes {
1502 	NFTA_REDIR_UNSPEC,
1503 	NFTA_REDIR_REG_PROTO_MIN,
1504 	NFTA_REDIR_REG_PROTO_MAX,
1505 	NFTA_REDIR_FLAGS,
1506 	__NFTA_REDIR_MAX
1507 };
1508 #define NFTA_REDIR_MAX		(__NFTA_REDIR_MAX - 1)
1509 
1510 /**
1511  * enum nft_dup_attributes - nf_tables dup expression netlink attributes
1512  *
1513  * @NFTA_DUP_SREG_ADDR: source register of address (NLA_U32: nft_registers)
1514  * @NFTA_DUP_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1515  */
1516 enum nft_dup_attributes {
1517 	NFTA_DUP_UNSPEC,
1518 	NFTA_DUP_SREG_ADDR,
1519 	NFTA_DUP_SREG_DEV,
1520 	__NFTA_DUP_MAX
1521 };
1522 #define NFTA_DUP_MAX		(__NFTA_DUP_MAX - 1)
1523 
1524 /**
1525  * enum nft_fwd_attributes - nf_tables fwd expression netlink attributes
1526  *
1527  * @NFTA_FWD_SREG_DEV: source register of output interface (NLA_U32: nft_register)
1528  * @NFTA_FWD_SREG_ADDR: source register of destination address (NLA_U32: nft_register)
1529  * @NFTA_FWD_NFPROTO: layer 3 family of source register address (NLA_U32: enum nfproto)
1530  */
1531 enum nft_fwd_attributes {
1532 	NFTA_FWD_UNSPEC,
1533 	NFTA_FWD_SREG_DEV,
1534 	NFTA_FWD_SREG_ADDR,
1535 	NFTA_FWD_NFPROTO,
1536 	__NFTA_FWD_MAX
1537 };
1538 #define NFTA_FWD_MAX	(__NFTA_FWD_MAX - 1)
1539 
1540 /**
1541  * enum nft_objref_attributes - nf_tables stateful object expression netlink attributes
1542  *
1543  * @NFTA_OBJREF_IMM_TYPE: object type for immediate reference (NLA_U32: nft_register)
1544  * @NFTA_OBJREF_IMM_NAME: object name for immediate reference (NLA_STRING)
1545  * @NFTA_OBJREF_SET_SREG: source register of the data to look for (NLA_U32: nft_registers)
1546  * @NFTA_OBJREF_SET_NAME: name of the set where to look for (NLA_STRING)
1547  * @NFTA_OBJREF_SET_ID: id of the set where to look for in this transaction (NLA_U32)
1548  */
1549 enum nft_objref_attributes {
1550 	NFTA_OBJREF_UNSPEC,
1551 	NFTA_OBJREF_IMM_TYPE,
1552 	NFTA_OBJREF_IMM_NAME,
1553 	NFTA_OBJREF_SET_SREG,
1554 	NFTA_OBJREF_SET_NAME,
1555 	NFTA_OBJREF_SET_ID,
1556 	__NFTA_OBJREF_MAX
1557 };
1558 #define NFTA_OBJREF_MAX	(__NFTA_OBJREF_MAX - 1)
1559 
1560 /**
1561  * enum nft_gen_attributes - nf_tables ruleset generation attributes
1562  *
1563  * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
1564  */
1565 enum nft_gen_attributes {
1566 	NFTA_GEN_UNSPEC,
1567 	NFTA_GEN_ID,
1568 	NFTA_GEN_PROC_PID,
1569 	NFTA_GEN_PROC_NAME,
1570 	__NFTA_GEN_MAX
1571 };
1572 #define NFTA_GEN_MAX		(__NFTA_GEN_MAX - 1)
1573 
1574 /*
1575  * enum nft_fib_attributes - nf_tables fib expression netlink attributes
1576  *
1577  * @NFTA_FIB_DREG: destination register (NLA_U32)
1578  * @NFTA_FIB_RESULT: desired result (NLA_U32)
1579  * @NFTA_FIB_FLAGS: flowi fields to initialize when querying the FIB (NLA_U32)
1580  *
1581  * The FIB expression performs a route lookup according
1582  * to the packet data.
1583  */
1584 enum nft_fib_attributes {
1585 	NFTA_FIB_UNSPEC,
1586 	NFTA_FIB_DREG,
1587 	NFTA_FIB_RESULT,
1588 	NFTA_FIB_FLAGS,
1589 	__NFTA_FIB_MAX
1590 };
1591 #define NFTA_FIB_MAX (__NFTA_FIB_MAX - 1)
1592 
1593 enum nft_fib_result {
1594 	NFT_FIB_RESULT_UNSPEC,
1595 	NFT_FIB_RESULT_OIF,
1596 	NFT_FIB_RESULT_OIFNAME,
1597 	NFT_FIB_RESULT_ADDRTYPE,
1598 	__NFT_FIB_RESULT_MAX
1599 };
1600 #define NFT_FIB_RESULT_MAX	(__NFT_FIB_RESULT_MAX - 1)
1601 
1602 enum nft_fib_flags {
1603 	NFTA_FIB_F_SADDR	= 1 << 0,	/* look up src */
1604 	NFTA_FIB_F_DADDR	= 1 << 1,	/* look up dst */
1605 	NFTA_FIB_F_MARK		= 1 << 2,	/* use skb->mark */
1606 	NFTA_FIB_F_IIF		= 1 << 3,	/* restrict to iif */
1607 	NFTA_FIB_F_OIF		= 1 << 4,	/* restrict to oif */
1608 	NFTA_FIB_F_PRESENT	= 1 << 5,	/* check existence only */
1609 };
1610 
1611 enum nft_ct_helper_attributes {
1612 	NFTA_CT_HELPER_UNSPEC,
1613 	NFTA_CT_HELPER_NAME,
1614 	NFTA_CT_HELPER_L3PROTO,
1615 	NFTA_CT_HELPER_L4PROTO,
1616 	__NFTA_CT_HELPER_MAX,
1617 };
1618 #define NFTA_CT_HELPER_MAX	(__NFTA_CT_HELPER_MAX - 1)
1619 
1620 enum nft_ct_timeout_timeout_attributes {
1621 	NFTA_CT_TIMEOUT_UNSPEC,
1622 	NFTA_CT_TIMEOUT_L3PROTO,
1623 	NFTA_CT_TIMEOUT_L4PROTO,
1624 	NFTA_CT_TIMEOUT_DATA,
1625 	__NFTA_CT_TIMEOUT_MAX,
1626 };
1627 #define NFTA_CT_TIMEOUT_MAX	(__NFTA_CT_TIMEOUT_MAX - 1)
1628 
1629 enum nft_ct_expectation_attributes {
1630 	NFTA_CT_EXPECT_UNSPEC,
1631 	NFTA_CT_EXPECT_L3PROTO,
1632 	NFTA_CT_EXPECT_L4PROTO,
1633 	NFTA_CT_EXPECT_DPORT,
1634 	NFTA_CT_EXPECT_TIMEOUT,
1635 	NFTA_CT_EXPECT_SIZE,
1636 	__NFTA_CT_EXPECT_MAX,
1637 };
1638 #define NFTA_CT_EXPECT_MAX	(__NFTA_CT_EXPECT_MAX - 1)
1639 
1640 #define NFT_OBJECT_UNSPEC	0
1641 #define NFT_OBJECT_COUNTER	1
1642 #define NFT_OBJECT_QUOTA	2
1643 #define NFT_OBJECT_CT_HELPER	3
1644 #define NFT_OBJECT_LIMIT	4
1645 #define NFT_OBJECT_CONNLIMIT	5
1646 #define NFT_OBJECT_TUNNEL	6
1647 #define NFT_OBJECT_CT_TIMEOUT	7
1648 #define NFT_OBJECT_SECMARK	8
1649 #define NFT_OBJECT_CT_EXPECT	9
1650 #define NFT_OBJECT_SYNPROXY	10
1651 #define __NFT_OBJECT_MAX	11
1652 #define NFT_OBJECT_MAX		(__NFT_OBJECT_MAX - 1)
1653 
1654 /**
1655  * enum nft_object_attributes - nf_tables stateful object netlink attributes
1656  *
1657  * @NFTA_OBJ_TABLE: name of the table containing the expression (NLA_STRING)
1658  * @NFTA_OBJ_NAME: name of this expression type (NLA_STRING)
1659  * @NFTA_OBJ_TYPE: stateful object type (NLA_U32)
1660  * @NFTA_OBJ_DATA: stateful object data (NLA_NESTED)
1661  * @NFTA_OBJ_USE: number of references to this expression (NLA_U32)
1662  * @NFTA_OBJ_HANDLE: object handle (NLA_U64)
1663  * @NFTA_OBJ_USERDATA: user data (NLA_BINARY)
1664  */
1665 enum nft_object_attributes {
1666 	NFTA_OBJ_UNSPEC,
1667 	NFTA_OBJ_TABLE,
1668 	NFTA_OBJ_NAME,
1669 	NFTA_OBJ_TYPE,
1670 	NFTA_OBJ_DATA,
1671 	NFTA_OBJ_USE,
1672 	NFTA_OBJ_HANDLE,
1673 	NFTA_OBJ_PAD,
1674 	NFTA_OBJ_USERDATA,
1675 	__NFTA_OBJ_MAX
1676 };
1677 #define NFTA_OBJ_MAX		(__NFTA_OBJ_MAX - 1)
1678 
1679 /**
1680  * enum nft_flowtable_flags - nf_tables flowtable flags
1681  *
1682  * @NFT_FLOWTABLE_HW_OFFLOAD: flowtable hardware offload is enabled
1683  * @NFT_FLOWTABLE_COUNTER: enable flow counters
1684  */
1685 enum nft_flowtable_flags {
1686 	NFT_FLOWTABLE_HW_OFFLOAD	= 0x1,
1687 	NFT_FLOWTABLE_COUNTER		= 0x2,
1688 	NFT_FLOWTABLE_MASK		= (NFT_FLOWTABLE_HW_OFFLOAD |
1689 					   NFT_FLOWTABLE_COUNTER)
1690 };
1691 
1692 /**
1693  * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
1694  *
1695  * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
1696  * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
1697  * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration (NLA_NESTED)
1698  * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
1699  * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
1700  * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
1701  */
1702 enum nft_flowtable_attributes {
1703 	NFTA_FLOWTABLE_UNSPEC,
1704 	NFTA_FLOWTABLE_TABLE,
1705 	NFTA_FLOWTABLE_NAME,
1706 	NFTA_FLOWTABLE_HOOK,
1707 	NFTA_FLOWTABLE_USE,
1708 	NFTA_FLOWTABLE_HANDLE,
1709 	NFTA_FLOWTABLE_PAD,
1710 	NFTA_FLOWTABLE_FLAGS,
1711 	__NFTA_FLOWTABLE_MAX
1712 };
1713 #define NFTA_FLOWTABLE_MAX	(__NFTA_FLOWTABLE_MAX - 1)
1714 
1715 /**
1716  * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
1717  *
1718  * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
1719  * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
1720  * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
1721  */
1722 enum nft_flowtable_hook_attributes {
1723 	NFTA_FLOWTABLE_HOOK_UNSPEC,
1724 	NFTA_FLOWTABLE_HOOK_NUM,
1725 	NFTA_FLOWTABLE_HOOK_PRIORITY,
1726 	NFTA_FLOWTABLE_HOOK_DEVS,
1727 	__NFTA_FLOWTABLE_HOOK_MAX
1728 };
1729 #define NFTA_FLOWTABLE_HOOK_MAX	(__NFTA_FLOWTABLE_HOOK_MAX - 1)
1730 
1731 /**
1732  * enum nft_osf_attributes - nftables osf expression netlink attributes
1733  *
1734  * @NFTA_OSF_DREG: destination register (NLA_U32: nft_registers)
1735  * @NFTA_OSF_TTL: Value of the TTL osf option (NLA_U8)
1736  * @NFTA_OSF_FLAGS: flags (NLA_U32)
1737  */
1738 enum nft_osf_attributes {
1739 	NFTA_OSF_UNSPEC,
1740 	NFTA_OSF_DREG,
1741 	NFTA_OSF_TTL,
1742 	NFTA_OSF_FLAGS,
1743 	__NFTA_OSF_MAX,
1744 };
1745 #define NFTA_OSF_MAX (__NFTA_OSF_MAX - 1)
1746 
1747 enum nft_osf_flags {
1748 	NFT_OSF_F_VERSION = (1 << 0),
1749 };
1750 
1751 /**
1752  * enum nft_synproxy_attributes - nf_tables synproxy expression netlink attributes
1753  *
1754  * @NFTA_SYNPROXY_MSS: mss value sent to the backend (NLA_U16)
1755  * @NFTA_SYNPROXY_WSCALE: wscale value sent to the backend (NLA_U8)
1756  * @NFTA_SYNPROXY_FLAGS: flags (NLA_U32)
1757  */
1758 enum nft_synproxy_attributes {
1759 	NFTA_SYNPROXY_UNSPEC,
1760 	NFTA_SYNPROXY_MSS,
1761 	NFTA_SYNPROXY_WSCALE,
1762 	NFTA_SYNPROXY_FLAGS,
1763 	__NFTA_SYNPROXY_MAX,
1764 };
1765 #define NFTA_SYNPROXY_MAX (__NFTA_SYNPROXY_MAX - 1)
1766 
1767 /**
1768  * enum nft_device_attributes - nf_tables device netlink attributes
1769  *
1770  * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
1771  */
1772 enum nft_devices_attributes {
1773 	NFTA_DEVICE_UNSPEC,
1774 	NFTA_DEVICE_NAME,
1775 	__NFTA_DEVICE_MAX
1776 };
1777 #define NFTA_DEVICE_MAX		(__NFTA_DEVICE_MAX - 1)
1778 
1779 /*
1780  * enum nft_xfrm_attributes - nf_tables xfrm expr netlink attributes
1781  *
1782  * @NFTA_XFRM_DREG: destination register (NLA_U32)
1783  * @NFTA_XFRM_KEY: enum nft_xfrm_keys (NLA_U32)
1784  * @NFTA_XFRM_DIR: direction (NLA_U8)
1785  * @NFTA_XFRM_SPNUM: index in secpath array (NLA_U32)
1786  */
1787 enum nft_xfrm_attributes {
1788 	NFTA_XFRM_UNSPEC,
1789 	NFTA_XFRM_DREG,
1790 	NFTA_XFRM_KEY,
1791 	NFTA_XFRM_DIR,
1792 	NFTA_XFRM_SPNUM,
1793 	__NFTA_XFRM_MAX
1794 };
1795 #define NFTA_XFRM_MAX (__NFTA_XFRM_MAX - 1)
1796 
1797 enum nft_xfrm_keys {
1798 	NFT_XFRM_KEY_UNSPEC,
1799 	NFT_XFRM_KEY_DADDR_IP4,
1800 	NFT_XFRM_KEY_DADDR_IP6,
1801 	NFT_XFRM_KEY_SADDR_IP4,
1802 	NFT_XFRM_KEY_SADDR_IP6,
1803 	NFT_XFRM_KEY_REQID,
1804 	NFT_XFRM_KEY_SPI,
1805 	__NFT_XFRM_KEY_MAX,
1806 };
1807 #define NFT_XFRM_KEY_MAX (__NFT_XFRM_KEY_MAX - 1)
1808 
1809 /**
1810  * enum nft_trace_attributes - nf_tables trace netlink attributes
1811  *
1812  * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
1813  * @NFTA_TRACE_CHAIN: name of the chain (NLA_STRING)
1814  * @NFTA_TRACE_RULE_HANDLE: numeric handle of the rule (NLA_U64)
1815  * @NFTA_TRACE_TYPE: type of the event (NLA_U32: nft_trace_types)
1816  * @NFTA_TRACE_VERDICT: verdict returned by hook (NLA_NESTED: nft_verdicts)
1817  * @NFTA_TRACE_ID: pseudo-id, same for each skb traced (NLA_U32)
1818  * @NFTA_TRACE_LL_HEADER: linklayer header (NLA_BINARY)
1819  * @NFTA_TRACE_NETWORK_HEADER: network header (NLA_BINARY)
1820  * @NFTA_TRACE_TRANSPORT_HEADER: transport header (NLA_BINARY)
1821  * @NFTA_TRACE_IIF: indev ifindex (NLA_U32)
1822  * @NFTA_TRACE_IIFTYPE: netdev->type of indev (NLA_U16)
1823  * @NFTA_TRACE_OIF: outdev ifindex (NLA_U32)
1824  * @NFTA_TRACE_OIFTYPE: netdev->type of outdev (NLA_U16)
1825  * @NFTA_TRACE_MARK: nfmark (NLA_U32)
1826  * @NFTA_TRACE_NFPROTO: nf protocol processed (NLA_U32)
1827  * @NFTA_TRACE_POLICY: policy that decided fate of packet (NLA_U32)
1828  */
1829 enum nft_trace_attributes {
1830 	NFTA_TRACE_UNSPEC,
1831 	NFTA_TRACE_TABLE,
1832 	NFTA_TRACE_CHAIN,
1833 	NFTA_TRACE_RULE_HANDLE,
1834 	NFTA_TRACE_TYPE,
1835 	NFTA_TRACE_VERDICT,
1836 	NFTA_TRACE_ID,
1837 	NFTA_TRACE_LL_HEADER,
1838 	NFTA_TRACE_NETWORK_HEADER,
1839 	NFTA_TRACE_TRANSPORT_HEADER,
1840 	NFTA_TRACE_IIF,
1841 	NFTA_TRACE_IIFTYPE,
1842 	NFTA_TRACE_OIF,
1843 	NFTA_TRACE_OIFTYPE,
1844 	NFTA_TRACE_MARK,
1845 	NFTA_TRACE_NFPROTO,
1846 	NFTA_TRACE_POLICY,
1847 	NFTA_TRACE_PAD,
1848 	__NFTA_TRACE_MAX
1849 };
1850 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
1851 
1852 enum nft_trace_types {
1853 	NFT_TRACETYPE_UNSPEC,
1854 	NFT_TRACETYPE_POLICY,
1855 	NFT_TRACETYPE_RETURN,
1856 	NFT_TRACETYPE_RULE,
1857 	__NFT_TRACETYPE_MAX
1858 };
1859 #define NFT_TRACETYPE_MAX (__NFT_TRACETYPE_MAX - 1)
1860 
1861 /**
1862  * enum nft_ng_attributes - nf_tables number generator expression netlink attributes
1863  *
1864  * @NFTA_NG_DREG: destination register (NLA_U32)
1865  * @NFTA_NG_MODULUS: maximum counter value (NLA_U32)
1866  * @NFTA_NG_TYPE: operation type (NLA_U32)
1867  * @NFTA_NG_OFFSET: offset to be added to the counter (NLA_U32)
1868  * @NFTA_NG_SET_NAME: name of the map to lookup (NLA_STRING)
1869  * @NFTA_NG_SET_ID: id of the map (NLA_U32)
1870  */
1871 enum nft_ng_attributes {
1872 	NFTA_NG_UNSPEC,
1873 	NFTA_NG_DREG,
1874 	NFTA_NG_MODULUS,
1875 	NFTA_NG_TYPE,
1876 	NFTA_NG_OFFSET,
1877 	NFTA_NG_SET_NAME,	/* deprecated */
1878 	NFTA_NG_SET_ID,		/* deprecated */
1879 	__NFTA_NG_MAX
1880 };
1881 #define NFTA_NG_MAX	(__NFTA_NG_MAX - 1)
1882 
1883 enum nft_ng_types {
1884 	NFT_NG_INCREMENTAL,
1885 	NFT_NG_RANDOM,
1886 	__NFT_NG_MAX
1887 };
1888 #define NFT_NG_MAX	(__NFT_NG_MAX - 1)
1889 
1890 enum nft_tunnel_key_ip_attributes {
1891 	NFTA_TUNNEL_KEY_IP_UNSPEC,
1892 	NFTA_TUNNEL_KEY_IP_SRC,
1893 	NFTA_TUNNEL_KEY_IP_DST,
1894 	__NFTA_TUNNEL_KEY_IP_MAX
1895 };
1896 #define NFTA_TUNNEL_KEY_IP_MAX	(__NFTA_TUNNEL_KEY_IP_MAX - 1)
1897 
1898 enum nft_tunnel_ip6_attributes {
1899 	NFTA_TUNNEL_KEY_IP6_UNSPEC,
1900 	NFTA_TUNNEL_KEY_IP6_SRC,
1901 	NFTA_TUNNEL_KEY_IP6_DST,
1902 	NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
1903 	__NFTA_TUNNEL_KEY_IP6_MAX
1904 };
1905 #define NFTA_TUNNEL_KEY_IP6_MAX	(__NFTA_TUNNEL_KEY_IP6_MAX - 1)
1906 
1907 enum nft_tunnel_opts_attributes {
1908 	NFTA_TUNNEL_KEY_OPTS_UNSPEC,
1909 	NFTA_TUNNEL_KEY_OPTS_VXLAN,
1910 	NFTA_TUNNEL_KEY_OPTS_ERSPAN,
1911 	NFTA_TUNNEL_KEY_OPTS_GENEVE,
1912 	__NFTA_TUNNEL_KEY_OPTS_MAX
1913 };
1914 #define NFTA_TUNNEL_KEY_OPTS_MAX	(__NFTA_TUNNEL_KEY_OPTS_MAX - 1)
1915 
1916 enum nft_tunnel_opts_vxlan_attributes {
1917 	NFTA_TUNNEL_KEY_VXLAN_UNSPEC,
1918 	NFTA_TUNNEL_KEY_VXLAN_GBP,
1919 	__NFTA_TUNNEL_KEY_VXLAN_MAX
1920 };
1921 #define NFTA_TUNNEL_KEY_VXLAN_MAX	(__NFTA_TUNNEL_KEY_VXLAN_MAX - 1)
1922 
1923 enum nft_tunnel_opts_erspan_attributes {
1924 	NFTA_TUNNEL_KEY_ERSPAN_UNSPEC,
1925 	NFTA_TUNNEL_KEY_ERSPAN_VERSION,
1926 	NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
1927 	NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
1928 	NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
1929 	__NFTA_TUNNEL_KEY_ERSPAN_MAX
1930 };
1931 #define NFTA_TUNNEL_KEY_ERSPAN_MAX	(__NFTA_TUNNEL_KEY_ERSPAN_MAX - 1)
1932 
1933 enum nft_tunnel_opts_geneve_attributes {
1934 	NFTA_TUNNEL_KEY_GENEVE_UNSPEC,
1935 	NFTA_TUNNEL_KEY_GENEVE_CLASS,
1936 	NFTA_TUNNEL_KEY_GENEVE_TYPE,
1937 	NFTA_TUNNEL_KEY_GENEVE_DATA,
1938 	__NFTA_TUNNEL_KEY_GENEVE_MAX
1939 };
1940 #define NFTA_TUNNEL_KEY_GENEVE_MAX	(__NFTA_TUNNEL_KEY_GENEVE_MAX - 1)
1941 
1942 enum nft_tunnel_flags {
1943 	NFT_TUNNEL_F_ZERO_CSUM_TX	= (1 << 0),
1944 	NFT_TUNNEL_F_DONT_FRAGMENT	= (1 << 1),
1945 	NFT_TUNNEL_F_SEQ_NUMBER		= (1 << 2),
1946 };
1947 #define NFT_TUNNEL_F_MASK	(NFT_TUNNEL_F_ZERO_CSUM_TX | \
1948 				 NFT_TUNNEL_F_DONT_FRAGMENT | \
1949 				 NFT_TUNNEL_F_SEQ_NUMBER)
1950 
1951 enum nft_tunnel_key_attributes {
1952 	NFTA_TUNNEL_KEY_UNSPEC,
1953 	NFTA_TUNNEL_KEY_ID,
1954 	NFTA_TUNNEL_KEY_IP,
1955 	NFTA_TUNNEL_KEY_IP6,
1956 	NFTA_TUNNEL_KEY_FLAGS,
1957 	NFTA_TUNNEL_KEY_TOS,
1958 	NFTA_TUNNEL_KEY_TTL,
1959 	NFTA_TUNNEL_KEY_SPORT,
1960 	NFTA_TUNNEL_KEY_DPORT,
1961 	NFTA_TUNNEL_KEY_OPTS,
1962 	__NFTA_TUNNEL_KEY_MAX
1963 };
1964 #define NFTA_TUNNEL_KEY_MAX	(__NFTA_TUNNEL_KEY_MAX - 1)
1965 
1966 enum nft_tunnel_keys {
1967 	NFT_TUNNEL_PATH,
1968 	NFT_TUNNEL_ID,
1969 	__NFT_TUNNEL_MAX
1970 };
1971 #define NFT_TUNNEL_MAX	(__NFT_TUNNEL_MAX - 1)
1972 
1973 enum nft_tunnel_mode {
1974 	NFT_TUNNEL_MODE_NONE,
1975 	NFT_TUNNEL_MODE_RX,
1976 	NFT_TUNNEL_MODE_TX,
1977 	__NFT_TUNNEL_MODE_MAX
1978 };
1979 #define NFT_TUNNEL_MODE_MAX	(__NFT_TUNNEL_MODE_MAX - 1)
1980 
1981 enum nft_tunnel_attributes {
1982 	NFTA_TUNNEL_UNSPEC,
1983 	NFTA_TUNNEL_KEY,
1984 	NFTA_TUNNEL_DREG,
1985 	NFTA_TUNNEL_MODE,
1986 	__NFTA_TUNNEL_MAX
1987 };
1988 #define NFTA_TUNNEL_MAX	(__NFTA_TUNNEL_MAX - 1)
1989 
1990 #endif /* _LINUX_NF_TABLES_H */
1991