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1da177e4 LT |
1 | #ifndef __LINUX_PKT_CLS_H |
2 | #define __LINUX_PKT_CLS_H | |
3 | ||
4 | #include <linux/pkt_sched.h> | |
5 | ||
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)) | |
10 | ||
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)) | |
15 | ||
16 | /* verdict bit breakdown | |
17 | * | |
18 | bit 0: when set -> this packet has been munged already | |
19 | ||
20 | bit 1: when set -> It is ok to munge this packet | |
21 | ||
22 | bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded | |
23 | assume loop | |
24 | ||
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 | |
29 | ||
30 | bit 8: when set --> Request not to classify on ingress. | |
31 | ||
32 | bits 9,10,11: redirect counter - redirect TTL. Loop avoidance | |
33 | ||
34 | * | |
35 | * */ | |
36 | ||
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) | |
40 | ||
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) | |
44 | ||
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)) | |
50 | ||
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 | |
59 | ||
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) | |
63 | ||
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)) | |
69 | ||
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)) | |
75 | ||
76 | /* Action attributes */ | |
77 | enum | |
78 | { | |
79 | TCA_ACT_UNSPEC, | |
80 | TCA_ACT_KIND, | |
81 | TCA_ACT_OPTIONS, | |
82 | TCA_ACT_INDEX, | |
83 | TCA_ACT_STATS, | |
84 | __TCA_ACT_MAX | |
85 | }; | |
86 | ||
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 | |
98 | ||
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 | |
108 | ||
109 | /* Action type identifiers*/ | |
110 | enum | |
111 | { | |
112 | TCA_ID_UNSPEC=0, | |
113 | TCA_ID_POLICE=1, | |
114 | /* other actions go here */ | |
115 | __TCA_ID_MAX=255 | |
116 | }; | |
117 | ||
118 | #define TCA_ID_MAX __TCA_ID_MAX | |
119 | ||
120 | struct tc_police | |
121 | { | |
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 | |
129 | ||
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; | |
138 | }; | |
139 | ||
140 | struct tcf_t | |
141 | { | |
142 | __u64 install; | |
143 | __u64 lastuse; | |
144 | __u64 expires; | |
145 | }; | |
146 | ||
147 | struct tc_cnt | |
148 | { | |
149 | int refcnt; | |
150 | int bindcnt; | |
151 | }; | |
152 | ||
153 | #define tc_gen \ | |
154 | __u32 index; \ | |
155 | __u32 capab; \ | |
156 | int action; \ | |
157 | int refcnt; \ | |
158 | int bindcnt | |
159 | ||
160 | enum | |
161 | { | |
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 | |
170 | }; | |
171 | ||
172 | #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1) | |
173 | ||
174 | /* U32 filters */ | |
175 | ||
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) | |
183 | ||
184 | enum | |
185 | { | |
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 | |
198 | }; | |
199 | ||
200 | #define TCA_U32_MAX (__TCA_U32_MAX - 1) | |
201 | ||
202 | struct tc_u32_key | |
203 | { | |
204 | __u32 mask; | |
205 | __u32 val; | |
206 | int off; | |
207 | int offmask; | |
208 | }; | |
209 | ||
210 | struct tc_u32_sel | |
211 | { | |
212 | unsigned char flags; | |
213 | unsigned char offshift; | |
214 | unsigned char nkeys; | |
215 | ||
216 | __u16 offmask; | |
217 | __u16 off; | |
218 | short offoff; | |
219 | ||
220 | short hoff; | |
221 | __u32 hmask; | |
222 | struct tc_u32_key keys[0]; | |
223 | }; | |
224 | ||
225 | struct tc_u32_mark | |
226 | { | |
227 | __u32 val; | |
228 | __u32 mask; | |
229 | __u32 success; | |
230 | }; | |
231 | ||
232 | struct tc_u32_pcnt | |
233 | { | |
234 | __u64 rcnt; | |
235 | __u64 rhit; | |
236 | __u64 kcnts[0]; | |
237 | }; | |
238 | ||
239 | /* Flags */ | |
240 | ||
241 | #define TC_U32_TERMINAL 1 | |
242 | #define TC_U32_OFFSET 2 | |
243 | #define TC_U32_VAROFFSET 4 | |
244 | #define TC_U32_EAT 8 | |
245 | ||
246 | #define TC_U32_MAXDEPTH 8 | |
247 | ||
248 | ||
249 | /* RSVP filter */ | |
250 | ||
251 | enum | |
252 | { | |
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 | |
261 | }; | |
262 | ||
263 | #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 ) | |
264 | ||
265 | struct tc_rsvp_gpi | |
266 | { | |
267 | __u32 key; | |
268 | __u32 mask; | |
269 | int offset; | |
270 | }; | |
271 | ||
272 | struct tc_rsvp_pinfo | |
273 | { | |
274 | struct tc_rsvp_gpi dpi; | |
275 | struct tc_rsvp_gpi spi; | |
276 | __u8 protocol; | |
277 | __u8 tunnelid; | |
278 | __u8 tunnelhdr; | |
8a47077a | 279 | __u8 pad; |
1da177e4 LT |
280 | }; |
281 | ||
282 | /* ROUTE filter */ | |
283 | ||
284 | enum | |
285 | { | |
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 | |
294 | }; | |
295 | ||
296 | #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1) | |
297 | ||
298 | ||
299 | /* FW filter */ | |
300 | ||
301 | enum | |
302 | { | |
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 */ | |
b4e9b520 | 308 | TCA_FW_MASK, |
1da177e4 LT |
309 | __TCA_FW_MAX |
310 | }; | |
311 | ||
312 | #define TCA_FW_MAX (__TCA_FW_MAX - 1) | |
313 | ||
314 | /* TC index filter */ | |
315 | ||
316 | enum | |
317 | { | |
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 | |
327 | }; | |
328 | ||
329 | #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) | |
330 | ||
331 | /* Basic filter */ | |
332 | ||
333 | enum | |
334 | { | |
335 | TCA_BASIC_UNSPEC, | |
336 | TCA_BASIC_CLASSID, | |
337 | TCA_BASIC_EMATCHES, | |
338 | TCA_BASIC_ACT, | |
339 | TCA_BASIC_POLICE, | |
340 | __TCA_BASIC_MAX | |
341 | }; | |
342 | ||
343 | #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) | |
344 | ||
345 | /* Extended Matches */ | |
346 | ||
347 | struct tcf_ematch_tree_hdr | |
348 | { | |
349 | __u16 nmatches; | |
350 | __u16 progid; | |
351 | }; | |
352 | ||
353 | enum | |
354 | { | |
355 | TCA_EMATCH_TREE_UNSPEC, | |
356 | TCA_EMATCH_TREE_HDR, | |
357 | TCA_EMATCH_TREE_LIST, | |
358 | __TCA_EMATCH_TREE_MAX | |
359 | }; | |
360 | #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) | |
361 | ||
362 | struct tcf_ematch_hdr | |
363 | { | |
364 | __u16 matchid; | |
365 | __u16 kind; | |
366 | __u16 flags; | |
367 | __u16 pad; /* currently unused */ | |
368 | }; | |
369 | ||
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 | * +-----------------------+-+-+---+ | |
375 | * | |
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 | |
383 | */ | |
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) | |
389 | ||
390 | #define TCF_EM_REL_MASK 3 | |
391 | #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) | |
392 | ||
393 | enum | |
394 | { | |
395 | TCF_LAYER_LINK, | |
396 | TCF_LAYER_NETWORK, | |
397 | TCF_LAYER_TRANSPORT, | |
398 | __TCF_LAYER_MAX | |
399 | }; | |
400 | #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) | |
401 | ||
402 | /* Ematch type assignments | |
403 | * 1..32767 Reserved for ematches inside kernel tree | |
404 | * 32768..65535 Free to use, not reliable | |
405 | */ | |
406 | enum | |
407 | { | |
408 | TCF_EM_CONTAINER, | |
409 | TCF_EM_CMP, | |
410 | TCF_EM_NBYTE, | |
411 | TCF_EM_U32, | |
412 | TCF_EM_META, | |
d675c989 | 413 | TCF_EM_TEXT, |
1da177e4 LT |
414 | __TCF_EM_MAX |
415 | }; | |
416 | ||
417 | enum | |
418 | { | |
419 | TCF_EM_PROG_TC | |
420 | }; | |
421 | ||
422 | enum | |
423 | { | |
424 | TCF_EM_OPND_EQ, | |
425 | TCF_EM_OPND_GT, | |
426 | TCF_EM_OPND_LT | |
427 | }; | |
428 | ||
429 | #endif |