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