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