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[linux-2.6.19-moxart.git] / include / linux / pkt_cls.h
blobc3f01b3085a410ac9334fd993d8ee4cd38ed339e
1 #ifndef __LINUX_PKT_CLS_H
2 #define __LINUX_PKT_CLS_H
4 #include <linux/pkt_sched.h>
6 /* I think i could have done better macros ; for now this is stolen from
7 * some arch/mips code - jhs
8 */
9 #define _TC_MAKE32(x) ((x))
11 #define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
12 #define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
13 #define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
14 #define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
16 /* verdict bit breakdown
18 bit 0: when set -> this packet has been munged already
20 bit 1: when set -> It is ok to munge this packet
22 bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
23 assume loop
25 bit 6,7: Where this packet was last seen
26 0: Above the transmit example at the socket level
27 1: on the Ingress
28 2: on the Egress
30 bit 8: when set --> Request not to classify on ingress.
32 bits 9,10,11: redirect counter - redirect TTL. Loop avoidance
35 * */
37 #define TC_MUNGED _TC_MAKEMASK1(0)
38 #define SET_TC_MUNGED(v) ( TC_MUNGED | (v & ~TC_MUNGED))
39 #define CLR_TC_MUNGED(v) ( v & ~TC_MUNGED)
41 #define TC_OK2MUNGE _TC_MAKEMASK1(1)
42 #define SET_TC_OK2MUNGE(v) ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
43 #define CLR_TC_OK2MUNGE(v) ( v & ~TC_OK2MUNGE)
45 #define S_TC_VERD _TC_MAKE32(2)
46 #define M_TC_VERD _TC_MAKEMASK(4,S_TC_VERD)
47 #define G_TC_VERD(x) _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
48 #define V_TC_VERD(x) _TC_MAKEVALUE(x,S_TC_VERD)
49 #define SET_TC_VERD(v,n) ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
51 #define S_TC_FROM _TC_MAKE32(6)
52 #define M_TC_FROM _TC_MAKEMASK(2,S_TC_FROM)
53 #define G_TC_FROM(x) _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
54 #define V_TC_FROM(x) _TC_MAKEVALUE(x,S_TC_FROM)
55 #define SET_TC_FROM(v,n) ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
56 #define AT_STACK 0x0
57 #define AT_INGRESS 0x1
58 #define AT_EGRESS 0x2
60 #define TC_NCLS _TC_MAKEMASK1(8)
61 #define SET_TC_NCLS(v) ( TC_NCLS | (v & ~TC_NCLS))
62 #define CLR_TC_NCLS(v) ( v & ~TC_NCLS)
64 #define S_TC_RTTL _TC_MAKE32(9)
65 #define M_TC_RTTL _TC_MAKEMASK(3,S_TC_RTTL)
66 #define G_TC_RTTL(x) _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
67 #define V_TC_RTTL(x) _TC_MAKEVALUE(x,S_TC_RTTL)
68 #define SET_TC_RTTL(v,n) ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
70 #define S_TC_AT _TC_MAKE32(12)
71 #define M_TC_AT _TC_MAKEMASK(2,S_TC_AT)
72 #define G_TC_AT(x) _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
73 #define V_TC_AT(x) _TC_MAKEVALUE(x,S_TC_AT)
74 #define SET_TC_AT(v,n) ((V_TC_AT(n)) | (v & ~M_TC_AT))
76 /* Action attributes */
77 enum
79 TCA_ACT_UNSPEC,
80 TCA_ACT_KIND,
81 TCA_ACT_OPTIONS,
82 TCA_ACT_INDEX,
83 TCA_ACT_STATS,
84 __TCA_ACT_MAX
87 #define TCA_ACT_MAX __TCA_ACT_MAX
88 #define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
89 #define TCA_ACT_MAX_PRIO 32
90 #define TCA_ACT_BIND 1
91 #define TCA_ACT_NOBIND 0
92 #define TCA_ACT_UNBIND 1
93 #define TCA_ACT_NOUNBIND 0
94 #define TCA_ACT_REPLACE 1
95 #define TCA_ACT_NOREPLACE 0
96 #define MAX_REC_LOOP 4
97 #define MAX_RED_LOOP 4
99 #define TC_ACT_UNSPEC (-1)
100 #define TC_ACT_OK 0
101 #define TC_ACT_RECLASSIFY 1
102 #define TC_ACT_SHOT 2
103 #define TC_ACT_PIPE 3
104 #define TC_ACT_STOLEN 4
105 #define TC_ACT_QUEUED 5
106 #define TC_ACT_REPEAT 6
107 #define TC_ACT_JUMP 0x10000000
109 /* Action type identifiers*/
110 enum
112 TCA_ID_UNSPEC=0,
113 TCA_ID_POLICE=1,
114 /* other actions go here */
115 __TCA_ID_MAX=255
118 #define TCA_ID_MAX __TCA_ID_MAX
120 struct tc_police
122 __u32 index;
123 int action;
124 #define TC_POLICE_UNSPEC TC_ACT_UNSPEC
125 #define TC_POLICE_OK TC_ACT_OK
126 #define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY
127 #define TC_POLICE_SHOT TC_ACT_SHOT
128 #define TC_POLICE_PIPE TC_ACT_PIPE
130 __u32 limit;
131 __u32 burst;
132 __u32 mtu;
133 struct tc_ratespec rate;
134 struct tc_ratespec peakrate;
135 int refcnt;
136 int bindcnt;
137 __u32 capab;
140 struct tcf_t
142 __u64 install;
143 __u64 lastuse;
144 __u64 expires;
147 struct tc_cnt
149 int refcnt;
150 int bindcnt;
153 #define tc_gen \
154 __u32 index; \
155 __u32 capab; \
156 int action; \
157 int refcnt; \
158 int bindcnt
160 enum
162 TCA_POLICE_UNSPEC,
163 TCA_POLICE_TBF,
164 TCA_POLICE_RATE,
165 TCA_POLICE_PEAKRATE,
166 TCA_POLICE_AVRATE,
167 TCA_POLICE_RESULT,
168 __TCA_POLICE_MAX
169 #define TCA_POLICE_RESULT TCA_POLICE_RESULT
172 #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
174 /* U32 filters */
176 #define TC_U32_HTID(h) ((h)&0xFFF00000)
177 #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
178 #define TC_U32_HASH(h) (((h)>>12)&0xFF)
179 #define TC_U32_NODE(h) ((h)&0xFFF)
180 #define TC_U32_KEY(h) ((h)&0xFFFFF)
181 #define TC_U32_UNSPEC 0
182 #define TC_U32_ROOT (0xFFF00000)
184 enum
186 TCA_U32_UNSPEC,
187 TCA_U32_CLASSID,
188 TCA_U32_HASH,
189 TCA_U32_LINK,
190 TCA_U32_DIVISOR,
191 TCA_U32_SEL,
192 TCA_U32_POLICE,
193 TCA_U32_ACT,
194 TCA_U32_INDEV,
195 TCA_U32_PCNT,
196 TCA_U32_MARK,
197 __TCA_U32_MAX
200 #define TCA_U32_MAX (__TCA_U32_MAX - 1)
202 struct tc_u32_key
204 __u32 mask;
205 __u32 val;
206 int off;
207 int offmask;
210 struct tc_u32_sel
212 unsigned char flags;
213 unsigned char offshift;
214 unsigned char nkeys;
216 __u16 offmask;
217 __u16 off;
218 short offoff;
220 short hoff;
221 __u32 hmask;
222 struct tc_u32_key keys[0];
225 struct tc_u32_mark
227 __u32 val;
228 __u32 mask;
229 __u32 success;
232 struct tc_u32_pcnt
234 __u64 rcnt;
235 __u64 rhit;
236 __u64 kcnts[0];
239 /* Flags */
241 #define TC_U32_TERMINAL 1
242 #define TC_U32_OFFSET 2
243 #define TC_U32_VAROFFSET 4
244 #define TC_U32_EAT 8
246 #define TC_U32_MAXDEPTH 8
249 /* RSVP filter */
251 enum
253 TCA_RSVP_UNSPEC,
254 TCA_RSVP_CLASSID,
255 TCA_RSVP_DST,
256 TCA_RSVP_SRC,
257 TCA_RSVP_PINFO,
258 TCA_RSVP_POLICE,
259 TCA_RSVP_ACT,
260 __TCA_RSVP_MAX
263 #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
265 struct tc_rsvp_gpi
267 __u32 key;
268 __u32 mask;
269 int offset;
272 struct tc_rsvp_pinfo
274 struct tc_rsvp_gpi dpi;
275 struct tc_rsvp_gpi spi;
276 __u8 protocol;
277 __u8 tunnelid;
278 __u8 tunnelhdr;
279 __u8 pad;
282 /* ROUTE filter */
284 enum
286 TCA_ROUTE4_UNSPEC,
287 TCA_ROUTE4_CLASSID,
288 TCA_ROUTE4_TO,
289 TCA_ROUTE4_FROM,
290 TCA_ROUTE4_IIF,
291 TCA_ROUTE4_POLICE,
292 TCA_ROUTE4_ACT,
293 __TCA_ROUTE4_MAX
296 #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
299 /* FW filter */
301 enum
303 TCA_FW_UNSPEC,
304 TCA_FW_CLASSID,
305 TCA_FW_POLICE,
306 TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
307 TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
308 TCA_FW_MASK,
309 __TCA_FW_MAX
312 #define TCA_FW_MAX (__TCA_FW_MAX - 1)
314 /* TC index filter */
316 enum
318 TCA_TCINDEX_UNSPEC,
319 TCA_TCINDEX_HASH,
320 TCA_TCINDEX_MASK,
321 TCA_TCINDEX_SHIFT,
322 TCA_TCINDEX_FALL_THROUGH,
323 TCA_TCINDEX_CLASSID,
324 TCA_TCINDEX_POLICE,
325 TCA_TCINDEX_ACT,
326 __TCA_TCINDEX_MAX
329 #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1)
331 /* Basic filter */
333 enum
335 TCA_BASIC_UNSPEC,
336 TCA_BASIC_CLASSID,
337 TCA_BASIC_EMATCHES,
338 TCA_BASIC_ACT,
339 TCA_BASIC_POLICE,
340 __TCA_BASIC_MAX
343 #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
345 /* Extended Matches */
347 struct tcf_ematch_tree_hdr
349 __u16 nmatches;
350 __u16 progid;
353 enum
355 TCA_EMATCH_TREE_UNSPEC,
356 TCA_EMATCH_TREE_HDR,
357 TCA_EMATCH_TREE_LIST,
358 __TCA_EMATCH_TREE_MAX
360 #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
362 struct tcf_ematch_hdr
364 __u16 matchid;
365 __u16 kind;
366 __u16 flags;
367 __u16 pad; /* currently unused */
370 /* 0 1
371 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
372 * +-----------------------+-+-+---+
373 * | Unused |S|I| R |
374 * +-----------------------+-+-+---+
376 * R(2) ::= relation to next ematch
377 * where: 0 0 END (last ematch)
378 * 0 1 AND
379 * 1 0 OR
380 * 1 1 Unused (invalid)
381 * I(1) ::= invert result
382 * S(1) ::= simple payload
384 #define TCF_EM_REL_END 0
385 #define TCF_EM_REL_AND (1<<0)
386 #define TCF_EM_REL_OR (1<<1)
387 #define TCF_EM_INVERT (1<<2)
388 #define TCF_EM_SIMPLE (1<<3)
390 #define TCF_EM_REL_MASK 3
391 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
393 enum
395 TCF_LAYER_LINK,
396 TCF_LAYER_NETWORK,
397 TCF_LAYER_TRANSPORT,
398 __TCF_LAYER_MAX
400 #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
402 /* Ematch type assignments
403 * 1..32767 Reserved for ematches inside kernel tree
404 * 32768..65535 Free to use, not reliable
406 enum
408 TCF_EM_CONTAINER,
409 TCF_EM_CMP,
410 TCF_EM_NBYTE,
411 TCF_EM_U32,
412 TCF_EM_META,
413 TCF_EM_TEXT,
414 __TCF_EM_MAX
417 enum
419 TCF_EM_PROG_TC
422 enum
424 TCF_EM_OPND_EQ,
425 TCF_EM_OPND_GT,
426 TCF_EM_OPND_LT
429 #endif