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1 | #ifndef __LINUX_PKT_CLS_H |
2 | #define __LINUX_PKT_CLS_H |
3 | |
4 | #include <linux/types.h> |
5 | #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 | * |
19 | bit 0: when set -> this packet has been munged already |
20 | |
21 | bit 1: when set -> It is ok to munge this packet |
22 | |
23 | bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded |
24 | assume loop |
25 | |
26 | bit 6,7: Where this packet was last seen |
27 | 0: Above the transmit example at the socket level |
28 | 1: on the Ingress |
29 | 2: on the Egress |
30 | |
31 | bit 8: when set --> Request not to classify on ingress. |
32 | |
33 | bits 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 */ |
78 | 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 |
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 | TCA_ID_UNSPEC=0, |
112 | TCA_ID_POLICE=1, |
113 | /* other actions go here */ |
114 | __TCA_ID_MAX=255 |
115 | }; |
116 | |
117 | #define TCA_ID_MAX __TCA_ID_MAX |
118 | |
119 | struct tc_police { |
120 | __u32 index; |
121 | int action; |
122 | #define TC_POLICE_UNSPEC TC_ACT_UNSPEC |
123 | #define TC_POLICE_OK TC_ACT_OK |
124 | #define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY |
125 | #define TC_POLICE_SHOT TC_ACT_SHOT |
126 | #define TC_POLICE_PIPE TC_ACT_PIPE |
127 | |
128 | __u32 limit; |
129 | __u32 burst; |
130 | __u32 mtu; |
131 | struct tc_ratespec rate; |
132 | struct tc_ratespec peakrate; |
133 | int refcnt; |
134 | int bindcnt; |
135 | __u32 capab; |
136 | }; |
137 | |
138 | struct tcf_t { |
139 | __u64 install; |
140 | __u64 lastuse; |
141 | __u64 expires; |
142 | }; |
143 | |
144 | struct tc_cnt { |
145 | int refcnt; |
146 | int bindcnt; |
147 | }; |
148 | |
149 | #define tc_gen \ |
150 | __u32 index; \ |
151 | __u32 capab; \ |
152 | int action; \ |
153 | int refcnt; \ |
154 | int bindcnt |
155 | |
156 | enum { |
157 | TCA_POLICE_UNSPEC, |
158 | TCA_POLICE_TBF, |
159 | TCA_POLICE_RATE, |
160 | TCA_POLICE_PEAKRATE, |
161 | TCA_POLICE_AVRATE, |
162 | TCA_POLICE_RESULT, |
163 | __TCA_POLICE_MAX |
164 | #define TCA_POLICE_RESULT TCA_POLICE_RESULT |
165 | }; |
166 | |
167 | #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1) |
168 | |
169 | /* U32 filters */ |
170 | |
171 | #define TC_U32_HTID(h) ((h)&0xFFF00000) |
172 | #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20) |
173 | #define TC_U32_HASH(h) (((h)>>12)&0xFF) |
174 | #define TC_U32_NODE(h) ((h)&0xFFF) |
175 | #define TC_U32_KEY(h) ((h)&0xFFFFF) |
176 | #define TC_U32_UNSPEC 0 |
177 | #define TC_U32_ROOT (0xFFF00000) |
178 | |
179 | enum { |
180 | TCA_U32_UNSPEC, |
181 | TCA_U32_CLASSID, |
182 | TCA_U32_HASH, |
183 | TCA_U32_LINK, |
184 | TCA_U32_DIVISOR, |
185 | TCA_U32_SEL, |
186 | TCA_U32_POLICE, |
187 | TCA_U32_ACT, |
188 | TCA_U32_INDEV, |
189 | TCA_U32_PCNT, |
190 | TCA_U32_MARK, |
191 | __TCA_U32_MAX |
192 | }; |
193 | |
194 | #define TCA_U32_MAX (__TCA_U32_MAX - 1) |
195 | |
196 | struct tc_u32_key { |
197 | __be32 mask; |
198 | __be32 val; |
199 | int off; |
200 | int offmask; |
201 | }; |
202 | |
203 | struct tc_u32_sel { |
204 | unsigned char flags; |
205 | unsigned char offshift; |
206 | unsigned char nkeys; |
207 | |
208 | __be16 offmask; |
209 | __u16 off; |
210 | short offoff; |
211 | |
212 | short hoff; |
213 | __be32 hmask; |
214 | struct tc_u32_key keys[0]; |
215 | }; |
216 | |
217 | struct tc_u32_mark { |
218 | __u32 val; |
219 | __u32 mask; |
220 | __u32 success; |
221 | }; |
222 | |
223 | struct tc_u32_pcnt { |
224 | __u64 rcnt; |
225 | __u64 rhit; |
226 | __u64 kcnts[0]; |
227 | }; |
228 | |
229 | /* Flags */ |
230 | |
231 | #define TC_U32_TERMINAL 1 |
232 | #define TC_U32_OFFSET 2 |
233 | #define TC_U32_VAROFFSET 4 |
234 | #define TC_U32_EAT 8 |
235 | |
236 | #define TC_U32_MAXDEPTH 8 |
237 | |
238 | |
239 | /* RSVP filter */ |
240 | |
241 | enum { |
242 | TCA_RSVP_UNSPEC, |
243 | TCA_RSVP_CLASSID, |
244 | TCA_RSVP_DST, |
245 | TCA_RSVP_SRC, |
246 | TCA_RSVP_PINFO, |
247 | TCA_RSVP_POLICE, |
248 | TCA_RSVP_ACT, |
249 | __TCA_RSVP_MAX |
250 | }; |
251 | |
252 | #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 ) |
253 | |
254 | struct tc_rsvp_gpi { |
255 | __u32 key; |
256 | __u32 mask; |
257 | int offset; |
258 | }; |
259 | |
260 | struct tc_rsvp_pinfo { |
261 | struct tc_rsvp_gpi dpi; |
262 | struct tc_rsvp_gpi spi; |
263 | __u8 protocol; |
264 | __u8 tunnelid; |
265 | __u8 tunnelhdr; |
266 | __u8 pad; |
267 | }; |
268 | |
269 | /* ROUTE filter */ |
270 | |
271 | enum { |
272 | TCA_ROUTE4_UNSPEC, |
273 | TCA_ROUTE4_CLASSID, |
274 | TCA_ROUTE4_TO, |
275 | TCA_ROUTE4_FROM, |
276 | TCA_ROUTE4_IIF, |
277 | TCA_ROUTE4_POLICE, |
278 | TCA_ROUTE4_ACT, |
279 | __TCA_ROUTE4_MAX |
280 | }; |
281 | |
282 | #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1) |
283 | |
284 | |
285 | /* FW filter */ |
286 | |
287 | enum { |
288 | TCA_FW_UNSPEC, |
289 | TCA_FW_CLASSID, |
290 | TCA_FW_POLICE, |
291 | TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */ |
292 | TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */ |
293 | TCA_FW_MASK, |
294 | __TCA_FW_MAX |
295 | }; |
296 | |
297 | #define TCA_FW_MAX (__TCA_FW_MAX - 1) |
298 | |
299 | /* TC index filter */ |
300 | |
301 | enum { |
302 | TCA_TCINDEX_UNSPEC, |
303 | TCA_TCINDEX_HASH, |
304 | TCA_TCINDEX_MASK, |
305 | TCA_TCINDEX_SHIFT, |
306 | TCA_TCINDEX_FALL_THROUGH, |
307 | TCA_TCINDEX_CLASSID, |
308 | TCA_TCINDEX_POLICE, |
309 | TCA_TCINDEX_ACT, |
310 | __TCA_TCINDEX_MAX |
311 | }; |
312 | |
313 | #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) |
314 | |
315 | /* Flow filter */ |
316 | |
317 | enum { |
318 | FLOW_KEY_SRC, |
319 | FLOW_KEY_DST, |
320 | FLOW_KEY_PROTO, |
321 | FLOW_KEY_PROTO_SRC, |
322 | FLOW_KEY_PROTO_DST, |
323 | FLOW_KEY_IIF, |
324 | FLOW_KEY_PRIORITY, |
325 | FLOW_KEY_MARK, |
326 | FLOW_KEY_NFCT, |
327 | FLOW_KEY_NFCT_SRC, |
328 | FLOW_KEY_NFCT_DST, |
329 | FLOW_KEY_NFCT_PROTO_SRC, |
330 | FLOW_KEY_NFCT_PROTO_DST, |
331 | FLOW_KEY_RTCLASSID, |
332 | FLOW_KEY_SKUID, |
333 | FLOW_KEY_SKGID, |
334 | FLOW_KEY_VLAN_TAG, |
335 | FLOW_KEY_RXHASH, |
336 | __FLOW_KEY_MAX, |
337 | }; |
338 | |
339 | #define FLOW_KEY_MAX (__FLOW_KEY_MAX - 1) |
340 | |
341 | enum { |
342 | FLOW_MODE_MAP, |
343 | FLOW_MODE_HASH, |
344 | }; |
345 | |
346 | enum { |
347 | TCA_FLOW_UNSPEC, |
348 | TCA_FLOW_KEYS, |
349 | TCA_FLOW_MODE, |
350 | TCA_FLOW_BASECLASS, |
351 | TCA_FLOW_RSHIFT, |
352 | TCA_FLOW_ADDEND, |
353 | TCA_FLOW_MASK, |
354 | TCA_FLOW_XOR, |
355 | TCA_FLOW_DIVISOR, |
356 | TCA_FLOW_ACT, |
357 | TCA_FLOW_POLICE, |
358 | TCA_FLOW_EMATCHES, |
359 | TCA_FLOW_PERTURB, |
360 | __TCA_FLOW_MAX |
361 | }; |
362 | |
363 | #define TCA_FLOW_MAX (__TCA_FLOW_MAX - 1) |
364 | |
365 | /* Basic filter */ |
366 | |
367 | enum { |
368 | TCA_BASIC_UNSPEC, |
369 | TCA_BASIC_CLASSID, |
370 | TCA_BASIC_EMATCHES, |
371 | TCA_BASIC_ACT, |
372 | TCA_BASIC_POLICE, |
373 | __TCA_BASIC_MAX |
374 | }; |
375 | |
376 | #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) |
377 | |
378 | |
379 | /* Cgroup classifier */ |
380 | |
381 | enum { |
382 | TCA_CGROUP_UNSPEC, |
383 | TCA_CGROUP_ACT, |
384 | TCA_CGROUP_POLICE, |
385 | TCA_CGROUP_EMATCHES, |
386 | __TCA_CGROUP_MAX, |
387 | }; |
388 | |
389 | #define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1) |
390 | |
391 | /* Extended Matches */ |
392 | |
393 | struct tcf_ematch_tree_hdr { |
394 | __u16 nmatches; |
395 | __u16 progid; |
396 | }; |
397 | |
398 | enum { |
399 | TCA_EMATCH_TREE_UNSPEC, |
400 | TCA_EMATCH_TREE_HDR, |
401 | TCA_EMATCH_TREE_LIST, |
402 | __TCA_EMATCH_TREE_MAX |
403 | }; |
404 | #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) |
405 | |
406 | struct tcf_ematch_hdr { |
407 | __u16 matchid; |
408 | __u16 kind; |
409 | __u16 flags; |
410 | __u16 pad; /* currently unused */ |
411 | }; |
412 | |
413 | /* 0 1 |
414 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 |
415 | * +-----------------------+-+-+---+ |
416 | * | Unused |S|I| R | |
417 | * +-----------------------+-+-+---+ |
418 | * |
419 | * R(2) ::= relation to next ematch |
420 | * where: 0 0 END (last ematch) |
421 | * 0 1 AND |
422 | * 1 0 OR |
423 | * 1 1 Unused (invalid) |
424 | * I(1) ::= invert result |
425 | * S(1) ::= simple payload |
426 | */ |
427 | #define TCF_EM_REL_END 0 |
428 | #define TCF_EM_REL_AND (1<<0) |
429 | #define TCF_EM_REL_OR (1<<1) |
430 | #define TCF_EM_INVERT (1<<2) |
431 | #define TCF_EM_SIMPLE (1<<3) |
432 | |
433 | #define TCF_EM_REL_MASK 3 |
434 | #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) |
435 | |
436 | enum { |
437 | TCF_LAYER_LINK, |
438 | TCF_LAYER_NETWORK, |
439 | TCF_LAYER_TRANSPORT, |
440 | __TCF_LAYER_MAX |
441 | }; |
442 | #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) |
443 | |
444 | /* Ematch type assignments |
445 | * 1..32767 Reserved for ematches inside kernel tree |
446 | * 32768..65535 Free to use, not reliable |
447 | */ |
448 | #define TCF_EM_CONTAINER 0 |
449 | #define TCF_EM_CMP 1 |
450 | #define TCF_EM_NBYTE 2 |
451 | #define TCF_EM_U32 3 |
452 | #define TCF_EM_META 4 |
453 | #define TCF_EM_TEXT 5 |
454 | #define TCF_EM_VLAN 6 |
455 | #define TCF_EM_MAX 6 |
456 | |
457 | enum { |
458 | TCF_EM_PROG_TC |
459 | }; |
460 | |
461 | enum { |
462 | TCF_EM_OPND_EQ, |
463 | TCF_EM_OPND_GT, |
464 | TCF_EM_OPND_LT |
465 | }; |
466 | |
467 | #endif |
468 |
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