blob: 3c842edff388c90ef76bab969322cddfa7e076d1 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __LINUX_PKT_CLS_H
2#define __LINUX_PKT_CLS_H
3
Jaswinder Singh Rajputed307442009-01-30 22:05:32 +05304#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005#include <linux/pkt_sched.h>
6
7/* I think i could have done better macros ; for now this is stolen from
8 * some arch/mips code - jhs
9*/
10#define _TC_MAKE32(x) ((x))
11
12#define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
13#define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
14#define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
15#define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
16
17/* verdict bit breakdown
18 *
19bit 0: when set -> this packet has been munged already
20
21bit 1: when set -> It is ok to munge this packet
22
23bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
24assume loop
25
26bit 6,7: Where this packet was last seen
270: Above the transmit example at the socket level
281: on the Ingress
292: on the Egress
30
31bit 8: when set --> Request not to classify on ingress.
32
33bits 9,10,11: redirect counter - redirect TTL. Loop avoidance
34
35 *
36 * */
37
38#define TC_MUNGED _TC_MAKEMASK1(0)
39#define SET_TC_MUNGED(v) ( TC_MUNGED | (v & ~TC_MUNGED))
40#define CLR_TC_MUNGED(v) ( v & ~TC_MUNGED)
41
42#define TC_OK2MUNGE _TC_MAKEMASK1(1)
43#define SET_TC_OK2MUNGE(v) ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
44#define CLR_TC_OK2MUNGE(v) ( v & ~TC_OK2MUNGE)
45
46#define S_TC_VERD _TC_MAKE32(2)
47#define M_TC_VERD _TC_MAKEMASK(4,S_TC_VERD)
48#define G_TC_VERD(x) _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
49#define V_TC_VERD(x) _TC_MAKEVALUE(x,S_TC_VERD)
50#define SET_TC_VERD(v,n) ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
51
52#define S_TC_FROM _TC_MAKE32(6)
53#define M_TC_FROM _TC_MAKEMASK(2,S_TC_FROM)
54#define G_TC_FROM(x) _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
55#define V_TC_FROM(x) _TC_MAKEVALUE(x,S_TC_FROM)
56#define SET_TC_FROM(v,n) ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
57#define AT_STACK 0x0
58#define AT_INGRESS 0x1
59#define AT_EGRESS 0x2
60
61#define TC_NCLS _TC_MAKEMASK1(8)
62#define SET_TC_NCLS(v) ( TC_NCLS | (v & ~TC_NCLS))
63#define CLR_TC_NCLS(v) ( v & ~TC_NCLS)
64
65#define S_TC_RTTL _TC_MAKE32(9)
66#define M_TC_RTTL _TC_MAKEMASK(3,S_TC_RTTL)
67#define G_TC_RTTL(x) _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
68#define V_TC_RTTL(x) _TC_MAKEVALUE(x,S_TC_RTTL)
69#define SET_TC_RTTL(v,n) ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
70
71#define S_TC_AT _TC_MAKE32(12)
72#define M_TC_AT _TC_MAKEMASK(2,S_TC_AT)
73#define G_TC_AT(x) _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
74#define V_TC_AT(x) _TC_MAKEVALUE(x,S_TC_AT)
75#define SET_TC_AT(v,n) ((V_TC_AT(n)) | (v & ~M_TC_AT))
76
77/* Action attributes */
78enum
79{
80 TCA_ACT_UNSPEC,
81 TCA_ACT_KIND,
82 TCA_ACT_OPTIONS,
83 TCA_ACT_INDEX,
84 TCA_ACT_STATS,
85 __TCA_ACT_MAX
86};
87
88#define TCA_ACT_MAX __TCA_ACT_MAX
89#define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
90#define TCA_ACT_MAX_PRIO 32
91#define TCA_ACT_BIND 1
92#define TCA_ACT_NOBIND 0
93#define TCA_ACT_UNBIND 1
94#define TCA_ACT_NOUNBIND 0
95#define TCA_ACT_REPLACE 1
96#define TCA_ACT_NOREPLACE 0
97#define MAX_REC_LOOP 4
98#define MAX_RED_LOOP 4
99
100#define TC_ACT_UNSPEC (-1)
101#define TC_ACT_OK 0
102#define TC_ACT_RECLASSIFY 1
103#define TC_ACT_SHOT 2
104#define TC_ACT_PIPE 3
105#define TC_ACT_STOLEN 4
106#define TC_ACT_QUEUED 5
107#define TC_ACT_REPEAT 6
108#define TC_ACT_JUMP 0x10000000
109
110/* Action type identifiers*/
111enum
112{
113 TCA_ID_UNSPEC=0,
114 TCA_ID_POLICE=1,
115 /* other actions go here */
116 __TCA_ID_MAX=255
117};
118
119#define TCA_ID_MAX __TCA_ID_MAX
120
121struct tc_police
122{
123 __u32 index;
124 int action;
125#define TC_POLICE_UNSPEC TC_ACT_UNSPEC
126#define TC_POLICE_OK TC_ACT_OK
127#define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY
128#define TC_POLICE_SHOT TC_ACT_SHOT
129#define TC_POLICE_PIPE TC_ACT_PIPE
130
131 __u32 limit;
132 __u32 burst;
133 __u32 mtu;
134 struct tc_ratespec rate;
135 struct tc_ratespec peakrate;
136 int refcnt;
137 int bindcnt;
138 __u32 capab;
139};
140
141struct tcf_t
142{
143 __u64 install;
144 __u64 lastuse;
145 __u64 expires;
146};
147
148struct tc_cnt
149{
150 int refcnt;
151 int bindcnt;
152};
153
154#define tc_gen \
155 __u32 index; \
156 __u32 capab; \
157 int action; \
158 int refcnt; \
159 int bindcnt
160
161enum
162{
163 TCA_POLICE_UNSPEC,
164 TCA_POLICE_TBF,
165 TCA_POLICE_RATE,
166 TCA_POLICE_PEAKRATE,
167 TCA_POLICE_AVRATE,
168 TCA_POLICE_RESULT,
169 __TCA_POLICE_MAX
170#define TCA_POLICE_RESULT TCA_POLICE_RESULT
171};
172
173#define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
174
175/* U32 filters */
176
177#define TC_U32_HTID(h) ((h)&0xFFF00000)
178#define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
179#define TC_U32_HASH(h) (((h)>>12)&0xFF)
180#define TC_U32_NODE(h) ((h)&0xFFF)
181#define TC_U32_KEY(h) ((h)&0xFFFFF)
182#define TC_U32_UNSPEC 0
183#define TC_U32_ROOT (0xFFF00000)
184
185enum
186{
187 TCA_U32_UNSPEC,
188 TCA_U32_CLASSID,
189 TCA_U32_HASH,
190 TCA_U32_LINK,
191 TCA_U32_DIVISOR,
192 TCA_U32_SEL,
193 TCA_U32_POLICE,
194 TCA_U32_ACT,
195 TCA_U32_INDEV,
196 TCA_U32_PCNT,
197 TCA_U32_MARK,
198 __TCA_U32_MAX
199};
200
201#define TCA_U32_MAX (__TCA_U32_MAX - 1)
202
203struct tc_u32_key
204{
Al Viro0382b9c2008-03-17 22:46:46 -0700205 __be32 mask;
206 __be32 val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 int off;
208 int offmask;
209};
210
211struct tc_u32_sel
212{
213 unsigned char flags;
214 unsigned char offshift;
215 unsigned char nkeys;
216
Al Viro0382b9c2008-03-17 22:46:46 -0700217 __be16 offmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 __u16 off;
219 short offoff;
220
221 short hoff;
Al Viro0382b9c2008-03-17 22:46:46 -0700222 __be32 hmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 struct tc_u32_key keys[0];
224};
225
226struct tc_u32_mark
227{
228 __u32 val;
229 __u32 mask;
230 __u32 success;
231};
232
233struct tc_u32_pcnt
234{
235 __u64 rcnt;
236 __u64 rhit;
237 __u64 kcnts[0];
238};
239
240/* Flags */
241
242#define TC_U32_TERMINAL 1
243#define TC_U32_OFFSET 2
244#define TC_U32_VAROFFSET 4
245#define TC_U32_EAT 8
246
247#define TC_U32_MAXDEPTH 8
248
249
250/* RSVP filter */
251
252enum
253{
254 TCA_RSVP_UNSPEC,
255 TCA_RSVP_CLASSID,
256 TCA_RSVP_DST,
257 TCA_RSVP_SRC,
258 TCA_RSVP_PINFO,
259 TCA_RSVP_POLICE,
260 TCA_RSVP_ACT,
261 __TCA_RSVP_MAX
262};
263
264#define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
265
266struct tc_rsvp_gpi
267{
268 __u32 key;
269 __u32 mask;
270 int offset;
271};
272
273struct tc_rsvp_pinfo
274{
275 struct tc_rsvp_gpi dpi;
276 struct tc_rsvp_gpi spi;
277 __u8 protocol;
278 __u8 tunnelid;
279 __u8 tunnelhdr;
Patrick McHardy8a470772005-06-28 12:56:45 -0700280 __u8 pad;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281};
282
283/* ROUTE filter */
284
285enum
286{
287 TCA_ROUTE4_UNSPEC,
288 TCA_ROUTE4_CLASSID,
289 TCA_ROUTE4_TO,
290 TCA_ROUTE4_FROM,
291 TCA_ROUTE4_IIF,
292 TCA_ROUTE4_POLICE,
293 TCA_ROUTE4_ACT,
294 __TCA_ROUTE4_MAX
295};
296
297#define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
298
299
300/* FW filter */
301
302enum
303{
304 TCA_FW_UNSPEC,
305 TCA_FW_CLASSID,
306 TCA_FW_POLICE,
307 TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
308 TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700309 TCA_FW_MASK,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 __TCA_FW_MAX
311};
312
313#define TCA_FW_MAX (__TCA_FW_MAX - 1)
314
315/* TC index filter */
316
317enum
318{
319 TCA_TCINDEX_UNSPEC,
320 TCA_TCINDEX_HASH,
321 TCA_TCINDEX_MASK,
322 TCA_TCINDEX_SHIFT,
323 TCA_TCINDEX_FALL_THROUGH,
324 TCA_TCINDEX_CLASSID,
325 TCA_TCINDEX_POLICE,
326 TCA_TCINDEX_ACT,
327 __TCA_TCINDEX_MAX
328};
329
330#define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1)
331
Patrick McHardye5dfb812008-01-31 18:37:42 -0800332/* Flow filter */
333
334enum
335{
336 FLOW_KEY_SRC,
337 FLOW_KEY_DST,
338 FLOW_KEY_PROTO,
339 FLOW_KEY_PROTO_SRC,
340 FLOW_KEY_PROTO_DST,
341 FLOW_KEY_IIF,
342 FLOW_KEY_PRIORITY,
343 FLOW_KEY_MARK,
344 FLOW_KEY_NFCT,
345 FLOW_KEY_NFCT_SRC,
346 FLOW_KEY_NFCT_DST,
347 FLOW_KEY_NFCT_PROTO_SRC,
348 FLOW_KEY_NFCT_PROTO_DST,
349 FLOW_KEY_RTCLASSID,
350 FLOW_KEY_SKUID,
351 FLOW_KEY_SKGID,
Patrick McHardy9ec13812008-02-05 16:21:04 -0800352 FLOW_KEY_VLAN_TAG,
Patrick McHardye5dfb812008-01-31 18:37:42 -0800353 __FLOW_KEY_MAX,
354};
355
356#define FLOW_KEY_MAX (__FLOW_KEY_MAX - 1)
357
358enum
359{
360 FLOW_MODE_MAP,
361 FLOW_MODE_HASH,
362};
363
364enum
365{
366 TCA_FLOW_UNSPEC,
367 TCA_FLOW_KEYS,
368 TCA_FLOW_MODE,
369 TCA_FLOW_BASECLASS,
370 TCA_FLOW_RSHIFT,
371 TCA_FLOW_ADDEND,
372 TCA_FLOW_MASK,
373 TCA_FLOW_XOR,
374 TCA_FLOW_DIVISOR,
375 TCA_FLOW_ACT,
376 TCA_FLOW_POLICE,
377 TCA_FLOW_EMATCHES,
Patrick McHardy72d97942008-07-14 20:36:32 -0700378 TCA_FLOW_PERTURB,
Patrick McHardye5dfb812008-01-31 18:37:42 -0800379 __TCA_FLOW_MAX
380};
381
382#define TCA_FLOW_MAX (__TCA_FLOW_MAX - 1)
383
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384/* Basic filter */
385
386enum
387{
388 TCA_BASIC_UNSPEC,
389 TCA_BASIC_CLASSID,
390 TCA_BASIC_EMATCHES,
391 TCA_BASIC_ACT,
392 TCA_BASIC_POLICE,
393 __TCA_BASIC_MAX
394};
395
396#define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
397
Thomas Graff4009232008-11-07 22:56:00 -0800398
399/* Cgroup classifier */
400
401enum
402{
403 TCA_CGROUP_UNSPEC,
404 TCA_CGROUP_ACT,
405 TCA_CGROUP_POLICE,
406 TCA_CGROUP_EMATCHES,
407 __TCA_CGROUP_MAX,
408};
409
410#define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1)
411
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412/* Extended Matches */
413
414struct tcf_ematch_tree_hdr
415{
416 __u16 nmatches;
417 __u16 progid;
418};
419
420enum
421{
422 TCA_EMATCH_TREE_UNSPEC,
423 TCA_EMATCH_TREE_HDR,
424 TCA_EMATCH_TREE_LIST,
425 __TCA_EMATCH_TREE_MAX
426};
427#define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
428
429struct tcf_ematch_hdr
430{
431 __u16 matchid;
432 __u16 kind;
433 __u16 flags;
434 __u16 pad; /* currently unused */
435};
436
437/* 0 1
438 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
439 * +-----------------------+-+-+---+
440 * | Unused |S|I| R |
441 * +-----------------------+-+-+---+
442 *
443 * R(2) ::= relation to next ematch
444 * where: 0 0 END (last ematch)
445 * 0 1 AND
446 * 1 0 OR
447 * 1 1 Unused (invalid)
448 * I(1) ::= invert result
449 * S(1) ::= simple payload
450 */
451#define TCF_EM_REL_END 0
452#define TCF_EM_REL_AND (1<<0)
453#define TCF_EM_REL_OR (1<<1)
454#define TCF_EM_INVERT (1<<2)
455#define TCF_EM_SIMPLE (1<<3)
456
457#define TCF_EM_REL_MASK 3
458#define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
459
460enum
461{
462 TCF_LAYER_LINK,
463 TCF_LAYER_NETWORK,
464 TCF_LAYER_TRANSPORT,
465 __TCF_LAYER_MAX
466};
467#define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
468
469/* Ematch type assignments
470 * 1..32767 Reserved for ematches inside kernel tree
471 * 32768..65535 Free to use, not reliable
472 */
Patrick McHardydb3d99c2007-07-11 19:46:26 -0700473#define TCF_EM_CONTAINER 0
474#define TCF_EM_CMP 1
475#define TCF_EM_NBYTE 2
476#define TCF_EM_U32 3
477#define TCF_EM_META 4
478#define TCF_EM_TEXT 5
Stephen Hemminger3113e882008-02-05 03:20:13 -0800479#define TCF_EM_VLAN 6
480#define TCF_EM_MAX 6
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481
482enum
483{
484 TCF_EM_PROG_TC
485};
486
487enum
488{
489 TCF_EM_OPND_EQ,
490 TCF_EM_OPND_GT,
491 TCF_EM_OPND_LT
492};
493
494#endif