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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec...
[deliverable/linux.git] / include / uapi / linux / netfilter / nf_tables.h
CommitLineData
96518518
PM		 1#ifndef _LINUX_NF_TABLES_H
2#define _LINUX_NF_TABLES_H
3
0768b3b3
PNA		 4#define NFT_CHAIN_MAXNAMELEN 32
5#define NFT_USERDATA_MAXLEN 256
96518518
PM		 6
7enum nft_registers {
8 NFT_REG_VERDICT,
9 NFT_REG_1,
10 NFT_REG_2,
11 NFT_REG_3,
12 NFT_REG_4,
13 __NFT_REG_MAX
14};
15#define NFT_REG_MAX (__NFT_REG_MAX - 1)
16
17/**
18 * enum nft_verdicts - nf_tables internal verdicts
19 *
20 * @NFT_CONTINUE: continue evaluation of the current rule
21 * @NFT_BREAK: terminate evaluation of the current rule
22 * @NFT_JUMP: push the current chain on the jump stack and jump to a chain
23 * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack
24 * @NFT_RETURN: return to the topmost chain on the jump stack
25 *
26 * The nf_tables verdicts share their numeric space with the netfilter verdicts.
27 */
28enum nft_verdicts {
29 NFT_CONTINUE = -1,
30 NFT_BREAK = -2,
31 NFT_JUMP = -3,
32 NFT_GOTO = -4,
33 NFT_RETURN = -5,
34};
35
36/**
37 * enum nf_tables_msg_types - nf_tables netlink message types
38 *
39 * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes)
40 * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes)
41 * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes)
42 * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes)
43 * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes)
44 * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes)
45 * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes)
46 * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes)
47 * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes)
20a69341
PM		 48 * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes)
49 * @NFT_MSG_GETSET: get a set (enum nft_set_attributes)
50 * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes)
51 * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes)
52 * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes)
53 * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes)
96518518
PM		 54 */
55enum nf_tables_msg_types {
56 NFT_MSG_NEWTABLE,
57 NFT_MSG_GETTABLE,
58 NFT_MSG_DELTABLE,
59 NFT_MSG_NEWCHAIN,
60 NFT_MSG_GETCHAIN,
61 NFT_MSG_DELCHAIN,
62 NFT_MSG_NEWRULE,
63 NFT_MSG_GETRULE,
64 NFT_MSG_DELRULE,
20a69341
PM		 65 NFT_MSG_NEWSET,
66 NFT_MSG_GETSET,
67 NFT_MSG_DELSET,
68 NFT_MSG_NEWSETELEM,
69 NFT_MSG_GETSETELEM,
70 NFT_MSG_DELSETELEM,
96518518
PM		 71 NFT_MSG_MAX,
72};
73
20a69341
PM		 74/**
75 * enum nft_list_attributes - nf_tables generic list netlink attributes
76 *
77 * @NFTA_LIST_ELEM: list element (NLA_NESTED)
78 */
96518518
PM		 79enum nft_list_attributes {
80 NFTA_LIST_UNPEC,
81 NFTA_LIST_ELEM,
82 __NFTA_LIST_MAX
83};
84#define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1)
85
86/**
87 * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes
88 *
89 * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
90 * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
91 */
92enum nft_hook_attributes {
93 NFTA_HOOK_UNSPEC,
94 NFTA_HOOK_HOOKNUM,
95 NFTA_HOOK_PRIORITY,
96 __NFTA_HOOK_MAX
97};
98#define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1)
99
9ddf6323
PNA		 100/**
101 * enum nft_table_flags - nf_tables table flags
102 *
103 * @NFT_TABLE_F_DORMANT: this table is not active
104 */
105enum nft_table_flags {
106 NFT_TABLE_F_DORMANT = 0x1,
107};
108
96518518
PM		 109/**
110 * enum nft_table_attributes - nf_tables table netlink attributes
111 *
112 * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
9ddf6323 113 * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
d8bcc768 114 * @NFTA_TABLE_USE: number of chains in this table (NLA_U32)
96518518
PM		 115 */
116enum nft_table_attributes {
117 NFTA_TABLE_UNSPEC,
118 NFTA_TABLE_NAME,
9ddf6323 119 NFTA_TABLE_FLAGS,
d8bcc768 120 NFTA_TABLE_USE,
96518518
PM		 121 __NFTA_TABLE_MAX
122};
123#define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1)
124
125/**
126 * enum nft_chain_attributes - nf_tables chain netlink attributes
127 *
128 * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
129 * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
130 * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
131 * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
0ca743a5
PNA		 132 * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
133 * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
9370761c 134 * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
0ca743a5 135 * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
96518518
PM		 136 */
137enum nft_chain_attributes {
138 NFTA_CHAIN_UNSPEC,
139 NFTA_CHAIN_TABLE,
140 NFTA_CHAIN_HANDLE,
141 NFTA_CHAIN_NAME,
142 NFTA_CHAIN_HOOK,
0ca743a5
PNA		 143 NFTA_CHAIN_POLICY,
144 NFTA_CHAIN_USE,
9370761c 145 NFTA_CHAIN_TYPE,
0ca743a5 146 NFTA_CHAIN_COUNTERS,
96518518
PM		 147 __NFTA_CHAIN_MAX
148};
149#define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1)
150
151/**
152 * enum nft_rule_attributes - nf_tables rule netlink attributes
153 *
154 * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
155 * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
156 * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
157 * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
0ca743a5 158 * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
5e948466 159 * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
0768b3b3 160 * @NFTA_RULE_USERDATA: user data (NLA_BINARY, NFT_USERDATA_MAXLEN)
96518518
PM		 161 */
162enum nft_rule_attributes {
163 NFTA_RULE_UNSPEC,
164 NFTA_RULE_TABLE,
165 NFTA_RULE_CHAIN,
166 NFTA_RULE_HANDLE,
167 NFTA_RULE_EXPRESSIONS,
0ca743a5 168 NFTA_RULE_COMPAT,
5e948466 169 NFTA_RULE_POSITION,
0768b3b3 170 NFTA_RULE_USERDATA,
96518518
PM		 171 __NFTA_RULE_MAX
172};
173#define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1)
174
0ca743a5
PNA		 175/**
176 * enum nft_rule_compat_flags - nf_tables rule compat flags
177 *
178 * @NFT_RULE_COMPAT_F_INV: invert the check result
179 */
180enum nft_rule_compat_flags {
181 NFT_RULE_COMPAT_F_INV = (1 << 1),
182 NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV,
183};
184
185/**
186 * enum nft_rule_compat_attributes - nf_tables rule compat attributes
187 *
188 * @NFTA_RULE_COMPAT_PROTO: numerice value of handled protocol (NLA_U32)
189 * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
190 */
191enum nft_rule_compat_attributes {
192 NFTA_RULE_COMPAT_UNSPEC,
193 NFTA_RULE_COMPAT_PROTO,
194 NFTA_RULE_COMPAT_FLAGS,
195 __NFTA_RULE_COMPAT_MAX
196};
197#define NFTA_RULE_COMPAT_MAX (__NFTA_RULE_COMPAT_MAX - 1)
198
20a69341
PM		 199/**
200 * enum nft_set_flags - nf_tables set flags
201 *
202 * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
203 * @NFT_SET_CONSTANT: set contents may not change while bound
204 * @NFT_SET_INTERVAL: set contains intervals
205 * @NFT_SET_MAP: set is used as a dictionary
206 */
207enum nft_set_flags {
208 NFT_SET_ANONYMOUS = 0x1,
209 NFT_SET_CONSTANT = 0x2,
210 NFT_SET_INTERVAL = 0x4,
211 NFT_SET_MAP = 0x8,
212};
213
c50b960c
PM		 214/**
215 * enum nft_set_policies - set selection policy
216 *
217 * @NFT_SET_POL_PERFORMANCE: prefer high performance over low memory use
218 * @NFT_SET_POL_MEMORY: prefer low memory use over high performance
219 */
220enum nft_set_policies {
221 NFT_SET_POL_PERFORMANCE,
222 NFT_SET_POL_MEMORY,
223};
224
225/**
226 * enum nft_set_desc_attributes - set element description
227 *
228 * @NFTA_SET_DESC_SIZE: number of elements in set (NLA_U32)
229 */
230enum nft_set_desc_attributes {
231 NFTA_SET_DESC_UNSPEC,
232 NFTA_SET_DESC_SIZE,
233 __NFTA_SET_DESC_MAX
234};
235#define NFTA_SET_DESC_MAX (__NFTA_SET_DESC_MAX - 1)
236
20a69341
PM		 237/**
238 * enum nft_set_attributes - nf_tables set netlink attributes
239 *
240 * @NFTA_SET_TABLE: table name (NLA_STRING)
241 * @NFTA_SET_NAME: set name (NLA_STRING)
242 * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
243 * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
244 * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
245 * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
246 * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
c50b960c
PM		 247 * @NFTA_SET_POLICY: selection policy (NLA_U32)
248 * @NFTA_SET_DESC: set description (NLA_NESTED)
958bee14 249 * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
20a69341
PM		 250 */
251enum nft_set_attributes {
252 NFTA_SET_UNSPEC,
253 NFTA_SET_TABLE,
254 NFTA_SET_NAME,
255 NFTA_SET_FLAGS,
256 NFTA_SET_KEY_TYPE,
257 NFTA_SET_KEY_LEN,
258 NFTA_SET_DATA_TYPE,
259 NFTA_SET_DATA_LEN,
c50b960c
PM		 260 NFTA_SET_POLICY,
261 NFTA_SET_DESC,
958bee14 262 NFTA_SET_ID,
20a69341
PM		 263 __NFTA_SET_MAX
264};
265#define NFTA_SET_MAX (__NFTA_SET_MAX - 1)
266
267/**
268 * enum nft_set_elem_flags - nf_tables set element flags
269 *
270 * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
271 */
272enum nft_set_elem_flags {
273 NFT_SET_ELEM_INTERVAL_END = 0x1,
274};
275
276/**
277 * enum nft_set_elem_attributes - nf_tables set element netlink attributes
278 *
279 * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
280 * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
281 * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
282 */
283enum nft_set_elem_attributes {
284 NFTA_SET_ELEM_UNSPEC,
285 NFTA_SET_ELEM_KEY,
286 NFTA_SET_ELEM_DATA,
287 NFTA_SET_ELEM_FLAGS,
288 __NFTA_SET_ELEM_MAX
289};
290#define NFTA_SET_ELEM_MAX (__NFTA_SET_ELEM_MAX - 1)
291
292/**
293 * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
294 *
295 * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
296 * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
297 * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
958bee14 298 * @NFTA_SET_ELEM_LIST_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
20a69341
PM		 299 */
300enum nft_set_elem_list_attributes {
301 NFTA_SET_ELEM_LIST_UNSPEC,
302 NFTA_SET_ELEM_LIST_TABLE,
303 NFTA_SET_ELEM_LIST_SET,
304 NFTA_SET_ELEM_LIST_ELEMENTS,
958bee14 305 NFTA_SET_ELEM_LIST_SET_ID,
20a69341
PM		 306 __NFTA_SET_ELEM_LIST_MAX
307};
308#define NFTA_SET_ELEM_LIST_MAX (__NFTA_SET_ELEM_LIST_MAX - 1)
309
310/**
311 * enum nft_data_types - nf_tables data types
312 *
313 * @NFT_DATA_VALUE: generic data
314 * @NFT_DATA_VERDICT: netfilter verdict
315 *
316 * The type of data is usually determined by the kernel directly and is not
317 * explicitly specified by userspace. The only difference are sets, where
318 * userspace specifies the key and mapping data types.
319 *
320 * The values 0xffffff00-0xffffffff are reserved for internally used types.
321 * The remaining range can be freely used by userspace to encode types, all
322 * values are equivalent to NFT_DATA_VALUE.
323 */
324enum nft_data_types {
325 NFT_DATA_VALUE,
326 NFT_DATA_VERDICT = 0xffffff00U,
327};
328
329#define NFT_DATA_RESERVED_MASK 0xffffff00U
330
331/**
332 * enum nft_data_attributes - nf_tables data netlink attributes
333 *
334 * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
335 * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
336 */
96518518
PM		 337enum nft_data_attributes {
338 NFTA_DATA_UNSPEC,
339 NFTA_DATA_VALUE,
340 NFTA_DATA_VERDICT,
341 __NFTA_DATA_MAX
342};
343#define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1)
344
345/**
346 * enum nft_verdict_attributes - nf_tables verdict netlink attributes
347 *
348 * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
349 * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
350 */
351enum nft_verdict_attributes {
352 NFTA_VERDICT_UNSPEC,
353 NFTA_VERDICT_CODE,
354 NFTA_VERDICT_CHAIN,
355 __NFTA_VERDICT_MAX
356};
357#define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1)
358
359/**
360 * enum nft_expr_attributes - nf_tables expression netlink attributes
361 *
362 * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
363 * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
364 */
365enum nft_expr_attributes {
366 NFTA_EXPR_UNSPEC,
367 NFTA_EXPR_NAME,
368 NFTA_EXPR_DATA,
369 __NFTA_EXPR_MAX
370};
371#define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1)
372
373/**
374 * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
375 *
376 * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
377 * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
378 */
379enum nft_immediate_attributes {
380 NFTA_IMMEDIATE_UNSPEC,
381 NFTA_IMMEDIATE_DREG,
382 NFTA_IMMEDIATE_DATA,
383 __NFTA_IMMEDIATE_MAX
384};
385#define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1)
386
387/**
388 * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
389 *
390 * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
391 * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
392 * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
393 * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
394 * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
395 *
396 * The bitwise expression performs the following operation:
397 *
398 * dreg = (sreg & mask) ^ xor
399 *
400 * which allow to express all bitwise operations:
401 *
402 * mask xor
403 * NOT: 1 1
404 * OR: 0 x
405 * XOR: 1 x
406 * AND: x 0
407 */
408enum nft_bitwise_attributes {
409 NFTA_BITWISE_UNSPEC,
410 NFTA_BITWISE_SREG,
411 NFTA_BITWISE_DREG,
412 NFTA_BITWISE_LEN,
413 NFTA_BITWISE_MASK,
414 NFTA_BITWISE_XOR,
415 __NFTA_BITWISE_MAX
416};
417#define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1)
418
419/**
420 * enum nft_byteorder_ops - nf_tables byteorder operators
421 *
422 * @NFT_BYTEORDER_NTOH: network to host operator
423 * @NFT_BYTEORDER_HTON: host to network opertaor
424 */
425enum nft_byteorder_ops {
426 NFT_BYTEORDER_NTOH,
427 NFT_BYTEORDER_HTON,
428};
429
430/**
431 * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
432 *
433 * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
434 * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
435 * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
436 * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
437 * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
438 */
439enum nft_byteorder_attributes {
440 NFTA_BYTEORDER_UNSPEC,
441 NFTA_BYTEORDER_SREG,
442 NFTA_BYTEORDER_DREG,
443 NFTA_BYTEORDER_OP,
444 NFTA_BYTEORDER_LEN,
445 NFTA_BYTEORDER_SIZE,
446 __NFTA_BYTEORDER_MAX
447};
448#define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1)
449
450/**
451 * enum nft_cmp_ops - nf_tables relational operator
452 *
453 * @NFT_CMP_EQ: equal
454 * @NFT_CMP_NEQ: not equal
455 * @NFT_CMP_LT: less than
456 * @NFT_CMP_LTE: less than or equal to
457 * @NFT_CMP_GT: greater than
458 * @NFT_CMP_GTE: greater than or equal to
459 */
460enum nft_cmp_ops {
461 NFT_CMP_EQ,
462 NFT_CMP_NEQ,
463 NFT_CMP_LT,
464 NFT_CMP_LTE,
465 NFT_CMP_GT,
466 NFT_CMP_GTE,
467};
468
469/**
470 * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
471 *
472 * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
473 * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
474 * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
475 */
476enum nft_cmp_attributes {
477 NFTA_CMP_UNSPEC,
478 NFTA_CMP_SREG,
479 NFTA_CMP_OP,
480 NFTA_CMP_DATA,
481 __NFTA_CMP_MAX
482};
483#define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1)
484
20a69341
PM		 485/**
486 * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
487 *
488 * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
489 * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
490 * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
958bee14 491 * @NFTA_LOOKUP_SET_ID: uniquely identifies a set in a transaction (NLA_U32)
20a69341
PM		 492 */
493enum nft_lookup_attributes {
494 NFTA_LOOKUP_UNSPEC,
495 NFTA_LOOKUP_SET,
496 NFTA_LOOKUP_SREG,
497 NFTA_LOOKUP_DREG,
958bee14 498 NFTA_LOOKUP_SET_ID,
20a69341 499 __NFTA_LOOKUP_MAX
96518518 500};
20a69341 501#define NFTA_LOOKUP_MAX (__NFTA_LOOKUP_MAX - 1)
96518518
PM		 502
503/**
504 * enum nft_payload_bases - nf_tables payload expression offset bases
505 *
506 * @NFT_PAYLOAD_LL_HEADER: link layer header
507 * @NFT_PAYLOAD_NETWORK_HEADER: network header
508 * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
509 */
510enum nft_payload_bases {
511 NFT_PAYLOAD_LL_HEADER,
512 NFT_PAYLOAD_NETWORK_HEADER,
513 NFT_PAYLOAD_TRANSPORT_HEADER,
514};
515
516/**
517 * enum nft_payload_attributes - nf_tables payload expression netlink attributes
518 *
519 * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
520 * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
521 * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
522 * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
523 */
524enum nft_payload_attributes {
525 NFTA_PAYLOAD_UNSPEC,
526 NFTA_PAYLOAD_DREG,
527 NFTA_PAYLOAD_BASE,
528 NFTA_PAYLOAD_OFFSET,
529 NFTA_PAYLOAD_LEN,
530 __NFTA_PAYLOAD_MAX
531};
532#define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1)
533
534/**
535 * enum nft_exthdr_attributes - nf_tables IPv6 extension header expression netlink attributes
536 *
537 * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
538 * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
539 * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
540 * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
541 */
542enum nft_exthdr_attributes {
543 NFTA_EXTHDR_UNSPEC,
544 NFTA_EXTHDR_DREG,
545 NFTA_EXTHDR_TYPE,
546 NFTA_EXTHDR_OFFSET,
547 NFTA_EXTHDR_LEN,
548 __NFTA_EXTHDR_MAX
549};
550#define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1)
551
552/**
553 * enum nft_meta_keys - nf_tables meta expression keys
554 *
555 * @NFT_META_LEN: packet length (skb->len)
556 * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
557 * @NFT_META_PRIORITY: packet priority (skb->priority)
558 * @NFT_META_MARK: packet mark (skb->mark)
559 * @NFT_META_IIF: packet input interface index (dev->ifindex)
560 * @NFT_META_OIF: packet output interface index (dev->ifindex)
561 * @NFT_META_IIFNAME: packet input interface name (dev->name)
562 * @NFT_META_OIFNAME: packet output interface name (dev->name)
563 * @NFT_META_IIFTYPE: packet input interface type (dev->type)
564 * @NFT_META_OIFTYPE: packet output interface type (dev->type)
565 * @NFT_META_SKUID: originating socket UID (fsuid)
566 * @NFT_META_SKGID: originating socket GID (fsgid)
567 * @NFT_META_NFTRACE: packet nftrace bit
568 * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
569 * @NFT_META_SECMARK: packet secmark (skb->secmark)
124edfa9 570 * @NFT_META_NFPROTO: netfilter protocol
4566bf27 571 * @NFT_META_L4PROTO: layer 4 protocol number
f5efc696
TB		 572 * @NFT_META_BRI_IIFNAME: packet input bridge interface name
573 * @NFT_META_BRI_OIFNAME: packet output bridge interface name
96518518
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575enum nft_meta_keys {
576 NFT_META_LEN,
577 NFT_META_PROTOCOL,
578 NFT_META_PRIORITY,
579 NFT_META_MARK,
580 NFT_META_IIF,
581 NFT_META_OIF,
582 NFT_META_IIFNAME,
583 NFT_META_OIFNAME,
584 NFT_META_IIFTYPE,
585 NFT_META_OIFTYPE,
586 NFT_META_SKUID,
587 NFT_META_SKGID,
588 NFT_META_NFTRACE,
589 NFT_META_RTCLASSID,
590 NFT_META_SECMARK,
124edfa9 591 NFT_META_NFPROTO,
4566bf27 592 NFT_META_L4PROTO,
f5efc696
TB		 593 NFT_META_BRI_IIFNAME,
594 NFT_META_BRI_OIFNAME,
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596
597/**
598 * enum nft_meta_attributes - nf_tables meta expression netlink attributes
599 *
600 * @NFTA_META_DREG: destination register (NLA_U32)
601 * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
e035b77a 602 * @NFTA_META_SREG: source register (NLA_U32)
96518518
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604enum nft_meta_attributes {
605 NFTA_META_UNSPEC,
606 NFTA_META_DREG,
607 NFTA_META_KEY,
e035b77a 608 NFTA_META_SREG,
96518518
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610};
611#define NFTA_META_MAX (__NFTA_META_MAX - 1)
612
613/**
614 * enum nft_ct_keys - nf_tables ct expression keys
615 *
616 * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
617 * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
618 * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
619 * @NFT_CT_MARK: conntrack mark value
620 * @NFT_CT_SECMARK: conntrack secmark value
621 * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
622 * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
623 * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
624 * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address)
625 * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address)
626 * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
627 * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
628 * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
629 */
630enum nft_ct_keys {
631 NFT_CT_STATE,
632 NFT_CT_DIRECTION,
633 NFT_CT_STATUS,
634 NFT_CT_MARK,
635 NFT_CT_SECMARK,
636 NFT_CT_EXPIRATION,
637 NFT_CT_HELPER,
638 NFT_CT_L3PROTOCOL,
639 NFT_CT_SRC,
640 NFT_CT_DST,
641 NFT_CT_PROTOCOL,
642 NFT_CT_PROTO_SRC,
643 NFT_CT_PROTO_DST,
d2bf2f34 644 NFT_CT_LABELS,
96518518
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646
647/**
648 * enum nft_ct_attributes - nf_tables ct expression netlink attributes
649 *
650 * @NFTA_CT_DREG: destination register (NLA_U32)
651 * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
652 * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
c4ede3d3 653 * @NFTA_CT_SREG: source register (NLA_U32)
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655enum nft_ct_attributes {
656 NFTA_CT_UNSPEC,
657 NFTA_CT_DREG,
658 NFTA_CT_KEY,
659 NFTA_CT_DIRECTION,
c4ede3d3 660 NFTA_CT_SREG,
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662};
663#define NFTA_CT_MAX (__NFTA_CT_MAX - 1)
664
665/**
666 * enum nft_limit_attributes - nf_tables limit expression netlink attributes
667 *
668 * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
669 * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
670 */
671enum nft_limit_attributes {
672 NFTA_LIMIT_UNSPEC,
673 NFTA_LIMIT_RATE,
674 NFTA_LIMIT_UNIT,
675 __NFTA_LIMIT_MAX
676};
677#define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1)
678
679/**
680 * enum nft_counter_attributes - nf_tables counter expression netlink attributes
681 *
682 * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
683 * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
684 */
685enum nft_counter_attributes {
686 NFTA_COUNTER_UNSPEC,
687 NFTA_COUNTER_BYTES,
688 NFTA_COUNTER_PACKETS,
689 __NFTA_COUNTER_MAX
690};
691#define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1)
692
693/**
694 * enum nft_log_attributes - nf_tables log expression netlink attributes
695 *
696 * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
697 * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
698 * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
699 * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
700 */
701enum nft_log_attributes {
702 NFTA_LOG_UNSPEC,
703 NFTA_LOG_GROUP,
704 NFTA_LOG_PREFIX,
705 NFTA_LOG_SNAPLEN,
706 NFTA_LOG_QTHRESHOLD,
707 __NFTA_LOG_MAX
708};
709#define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1)
710
0aff078d
EL		 711/**
712 * enum nft_queue_attributes - nf_tables queue expression netlink attributes
713 *
714 * @NFTA_QUEUE_NUM: netlink queue to send messages to (NLA_U16)
715 * @NFTA_QUEUE_TOTAL: number of queues to load balance packets on (NLA_U16)
716 * @NFTA_QUEUE_FLAGS: various flags (NLA_U16)
717 */
718enum nft_queue_attributes {
719 NFTA_QUEUE_UNSPEC,
720 NFTA_QUEUE_NUM,
721 NFTA_QUEUE_TOTAL,
722 NFTA_QUEUE_FLAGS,
723 __NFTA_QUEUE_MAX
724};
725#define NFTA_QUEUE_MAX (__NFTA_QUEUE_MAX - 1)
726
727#define NFT_QUEUE_FLAG_BYPASS 0x01 /* for compatibility with v2 */
728#define NFT_QUEUE_FLAG_CPU_FANOUT 0x02 /* use current CPU (no hashing) */
729#define NFT_QUEUE_FLAG_MASK 0x03
730
96518518
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732 * enum nft_reject_types - nf_tables reject expression reject types
733 *
734 * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
735 * @NFT_REJECT_TCP_RST: reject using TCP RST
736 */
737enum nft_reject_types {
738 NFT_REJECT_ICMP_UNREACH,
739 NFT_REJECT_TCP_RST,
740};
741
742/**
743 * enum nft_reject_attributes - nf_tables reject expression netlink attributes
744 *
745 * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
746 * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
747 */
748enum nft_reject_attributes {
749 NFTA_REJECT_UNSPEC,
750 NFTA_REJECT_TYPE,
751 NFTA_REJECT_ICMP_CODE,
752 __NFTA_REJECT_MAX
753};
754#define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1)
755
756/**
757 * enum nft_nat_types - nf_tables nat expression NAT types
758 *
759 * @NFT_NAT_SNAT: source NAT
760 * @NFT_NAT_DNAT: destination NAT
761 */
762enum nft_nat_types {
763 NFT_NAT_SNAT,
764 NFT_NAT_DNAT,
765};
766
767/**
768 * enum nft_nat_attributes - nf_tables nat expression netlink attributes
769 *
770 * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
eb31628e
TB		 771 * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
772 * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
773 * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
774 * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
775 * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
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777enum nft_nat_attributes {
778 NFTA_NAT_UNSPEC,
779 NFTA_NAT_TYPE,
eb31628e
TB		 780 NFTA_NAT_FAMILY,
781 NFTA_NAT_REG_ADDR_MIN,
782 NFTA_NAT_REG_ADDR_MAX,
783 NFTA_NAT_REG_PROTO_MIN,
784 NFTA_NAT_REG_PROTO_MAX,
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786};
787#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
788
789#endif /* _LINUX_NF_TABLES_H */
Linux kernel - Deliverables
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