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001: #ifndef __LINUX_PKT_CLS_H
002: #define __LINUX_PKT_CLS_H
003: 
004: #include <linux/types.h>
005: #include <linux/pkt_sched.h>
006: 
007: /* I think i could have done better macros ; for now this is stolen from
008:  * some arch/mips code - jhs
009: */
010: #define _TC_MAKE32(x) ((x))
011: 
012: #define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
013: #define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
014: #define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
015: #define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
016: 
017: /* verdict bit breakdown 
018:  *
019: bit 0: when set -> this packet has been munged already
020: 
021: bit 1: when set -> It is ok to munge this packet
022: 
023: bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
024: assume loop
025: 
026: bit 6,7: Where this packet was last seen 
027: 0: Above the transmit example at the socket level
028: 1: on the Ingress
029: 2: on the Egress
030: 
031: bit 8: when set --> Request not to classify on ingress. 
032: 
033: bits 9,10,11: redirect counter -  redirect TTL. Loop avoidance
034: 
035:  *
036:  * */
037: 
038: #define TC_MUNGED          _TC_MAKEMASK1(0)
039: #define SET_TC_MUNGED(v)   ( TC_MUNGED | (v & ~TC_MUNGED))
040: #define CLR_TC_MUNGED(v)   ( v & ~TC_MUNGED)
041: 
042: #define TC_OK2MUNGE        _TC_MAKEMASK1(1)
043: #define SET_TC_OK2MUNGE(v)   ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
044: #define CLR_TC_OK2MUNGE(v)   ( v & ~TC_OK2MUNGE)
045: 
046: #define S_TC_VERD          _TC_MAKE32(2)
047: #define M_TC_VERD          _TC_MAKEMASK(4,S_TC_VERD)
048: #define G_TC_VERD(x)       _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
049: #define V_TC_VERD(x)       _TC_MAKEVALUE(x,S_TC_VERD)
050: #define SET_TC_VERD(v,n)   ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
051: 
052: #define S_TC_FROM          _TC_MAKE32(6)
053: #define M_TC_FROM          _TC_MAKEMASK(2,S_TC_FROM)
054: #define G_TC_FROM(x)       _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
055: #define V_TC_FROM(x)       _TC_MAKEVALUE(x,S_TC_FROM)
056: #define SET_TC_FROM(v,n)   ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
057: #define AT_STACK        0x0
058: #define AT_INGRESS      0x1
059: #define AT_EGRESS       0x2
060: 
061: #define TC_NCLS          _TC_MAKEMASK1(8)
062: #define SET_TC_NCLS(v)   ( TC_NCLS | (v & ~TC_NCLS))
063: #define CLR_TC_NCLS(v)   ( v & ~TC_NCLS)
064: 
065: #define S_TC_RTTL          _TC_MAKE32(9)
066: #define M_TC_RTTL          _TC_MAKEMASK(3,S_TC_RTTL)
067: #define G_TC_RTTL(x)       _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
068: #define V_TC_RTTL(x)       _TC_MAKEVALUE(x,S_TC_RTTL)
069: #define SET_TC_RTTL(v,n)   ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
070: 
071: #define S_TC_AT          _TC_MAKE32(12)
072: #define M_TC_AT          _TC_MAKEMASK(2,S_TC_AT)
073: #define G_TC_AT(x)       _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
074: #define V_TC_AT(x)       _TC_MAKEVALUE(x,S_TC_AT)
075: #define SET_TC_AT(v,n)   ((V_TC_AT(n)) | (v & ~M_TC_AT))
076: 
077: /* Action attributes */
078: enum {
079:         TCA_ACT_UNSPEC,
080:         TCA_ACT_KIND,
081:         TCA_ACT_OPTIONS,
082:         TCA_ACT_INDEX,
083:         TCA_ACT_STATS,
084:         __TCA_ACT_MAX
085: };
086: 
087: #define TCA_ACT_MAX __TCA_ACT_MAX
088: #define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
089: #define TCA_ACT_MAX_PRIO 32
090: #define TCA_ACT_BIND    1
091: #define TCA_ACT_NOBIND  0
092: #define TCA_ACT_UNBIND  1
093: #define TCA_ACT_NOUNBIND        0
094: #define TCA_ACT_REPLACE         1
095: #define TCA_ACT_NOREPLACE       0
096: #define MAX_REC_LOOP 4
097: #define MAX_RED_LOOP 4
098: 
099: #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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