pkt_cls.h 8.1 KB

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  1. #ifndef __LINUX_PKT_CLS_H
  2. #define __LINUX_PKT_CLS_H
  3. #include <linux/pkt_sched.h>
  4. /* I think i could have done better macros ; for now this is stolen from
  5. * some arch/mips code - jhs
  6. */
  7. #define _TC_MAKE32(x) ((x))
  8. #define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
  9. #define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
  10. #define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
  11. #define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
  12. /* verdict bit breakdown
  13. *
  14. bit 0: when set -> this packet has been munged already
  15. bit 1: when set -> It is ok to munge this packet
  16. bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
  17. assume loop
  18. bit 6,7: Where this packet was last seen
  19. 0: Above the transmit example at the socket level
  20. 1: on the Ingress
  21. 2: on the Egress
  22. bit 8: when set --> Request not to classify on ingress.
  23. bits 9,10,11: redirect counter - redirect TTL. Loop avoidance
  24. *
  25. * */
  26. #define TC_MUNGED _TC_MAKEMASK1(0)
  27. #define SET_TC_MUNGED(v) ( TC_MUNGED | (v & ~TC_MUNGED))
  28. #define CLR_TC_MUNGED(v) ( v & ~TC_MUNGED)
  29. #define TC_OK2MUNGE _TC_MAKEMASK1(1)
  30. #define SET_TC_OK2MUNGE(v) ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
  31. #define CLR_TC_OK2MUNGE(v) ( v & ~TC_OK2MUNGE)
  32. #define S_TC_VERD _TC_MAKE32(2)
  33. #define M_TC_VERD _TC_MAKEMASK(4,S_TC_VERD)
  34. #define G_TC_VERD(x) _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
  35. #define V_TC_VERD(x) _TC_MAKEVALUE(x,S_TC_VERD)
  36. #define SET_TC_VERD(v,n) ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
  37. #define S_TC_FROM _TC_MAKE32(6)
  38. #define M_TC_FROM _TC_MAKEMASK(2,S_TC_FROM)
  39. #define G_TC_FROM(x) _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
  40. #define V_TC_FROM(x) _TC_MAKEVALUE(x,S_TC_FROM)
  41. #define SET_TC_FROM(v,n) ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
  42. #define AT_STACK 0x0
  43. #define AT_INGRESS 0x1
  44. #define AT_EGRESS 0x2
  45. #define TC_NCLS _TC_MAKEMASK1(8)
  46. #define SET_TC_NCLS(v) ( TC_NCLS | (v & ~TC_NCLS))
  47. #define CLR_TC_NCLS(v) ( v & ~TC_NCLS)
  48. #define S_TC_RTTL _TC_MAKE32(9)
  49. #define M_TC_RTTL _TC_MAKEMASK(3,S_TC_RTTL)
  50. #define G_TC_RTTL(x) _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
  51. #define V_TC_RTTL(x) _TC_MAKEVALUE(x,S_TC_RTTL)
  52. #define SET_TC_RTTL(v,n) ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
  53. #define S_TC_AT _TC_MAKE32(12)
  54. #define M_TC_AT _TC_MAKEMASK(2,S_TC_AT)
  55. #define G_TC_AT(x) _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
  56. #define V_TC_AT(x) _TC_MAKEVALUE(x,S_TC_AT)
  57. #define SET_TC_AT(v,n) ((V_TC_AT(n)) | (v & ~M_TC_AT))
  58. /* Action attributes */
  59. enum
  60. {
  61. TCA_ACT_UNSPEC,
  62. TCA_ACT_KIND,
  63. TCA_ACT_OPTIONS,
  64. TCA_ACT_INDEX,
  65. TCA_ACT_STATS,
  66. __TCA_ACT_MAX
  67. };
  68. #define TCA_ACT_MAX __TCA_ACT_MAX
  69. #define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
  70. #define TCA_ACT_MAX_PRIO 32
  71. #define TCA_ACT_BIND 1
  72. #define TCA_ACT_NOBIND 0
  73. #define TCA_ACT_UNBIND 1
  74. #define TCA_ACT_NOUNBIND 0
  75. #define TCA_ACT_REPLACE 1
  76. #define TCA_ACT_NOREPLACE 0
  77. #define MAX_REC_LOOP 4
  78. #define MAX_RED_LOOP 4
  79. #define TC_ACT_UNSPEC (-1)
  80. #define TC_ACT_OK 0
  81. #define TC_ACT_RECLASSIFY 1
  82. #define TC_ACT_SHOT 2
  83. #define TC_ACT_PIPE 3
  84. #define TC_ACT_STOLEN 4
  85. #define TC_ACT_QUEUED 5
  86. #define TC_ACT_REPEAT 6
  87. #define TC_ACT_JUMP 0x10000000
  88. /* Action type identifiers*/
  89. enum
  90. {
  91. TCA_ID_UNSPEC=0,
  92. TCA_ID_POLICE=1,
  93. /* other actions go here */
  94. __TCA_ID_MAX=255
  95. };
  96. #define TCA_ID_MAX __TCA_ID_MAX
  97. struct tc_police
  98. {
  99. __u32 index;
  100. int action;
  101. #define TC_POLICE_UNSPEC TC_ACT_UNSPEC
  102. #define TC_POLICE_OK TC_ACT_OK
  103. #define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY
  104. #define TC_POLICE_SHOT TC_ACT_SHOT
  105. #define TC_POLICE_PIPE TC_ACT_PIPE
  106. __u32 limit;
  107. __u32 burst;
  108. __u32 mtu;
  109. struct tc_ratespec rate;
  110. struct tc_ratespec peakrate;
  111. int refcnt;
  112. int bindcnt;
  113. __u32 capab;
  114. };
  115. struct tcf_t
  116. {
  117. __u64 install;
  118. __u64 lastuse;
  119. __u64 expires;
  120. };
  121. struct tc_cnt
  122. {
  123. int refcnt;
  124. int bindcnt;
  125. };
  126. #define tc_gen \
  127. __u32 index; \
  128. __u32 capab; \
  129. int action; \
  130. int refcnt; \
  131. int bindcnt
  132. enum
  133. {
  134. TCA_POLICE_UNSPEC,
  135. TCA_POLICE_TBF,
  136. TCA_POLICE_RATE,
  137. TCA_POLICE_PEAKRATE,
  138. TCA_POLICE_AVRATE,
  139. TCA_POLICE_RESULT,
  140. __TCA_POLICE_MAX
  141. #define TCA_POLICE_RESULT TCA_POLICE_RESULT
  142. };
  143. #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
  144. /* U32 filters */
  145. #define TC_U32_HTID(h) ((h)&0xFFF00000)
  146. #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
  147. #define TC_U32_HASH(h) (((h)>>12)&0xFF)
  148. #define TC_U32_NODE(h) ((h)&0xFFF)
  149. #define TC_U32_KEY(h) ((h)&0xFFFFF)
  150. #define TC_U32_UNSPEC 0
  151. #define TC_U32_ROOT (0xFFF00000)
  152. enum
  153. {
  154. TCA_U32_UNSPEC,
  155. TCA_U32_CLASSID,
  156. TCA_U32_HASH,
  157. TCA_U32_LINK,
  158. TCA_U32_DIVISOR,
  159. TCA_U32_SEL,
  160. TCA_U32_POLICE,
  161. TCA_U32_ACT,
  162. TCA_U32_INDEV,
  163. TCA_U32_PCNT,
  164. TCA_U32_MARK,
  165. __TCA_U32_MAX
  166. };
  167. #define TCA_U32_MAX (__TCA_U32_MAX - 1)
  168. struct tc_u32_key
  169. {
  170. __u32 mask;
  171. __u32 val;
  172. int off;
  173. int offmask;
  174. };
  175. struct tc_u32_sel
  176. {
  177. unsigned char flags;
  178. unsigned char offshift;
  179. unsigned char nkeys;
  180. __u16 offmask;
  181. __u16 off;
  182. short offoff;
  183. short hoff;
  184. __u32 hmask;
  185. struct tc_u32_key keys[0];
  186. };
  187. struct tc_u32_mark
  188. {
  189. __u32 val;
  190. __u32 mask;
  191. __u32 success;
  192. };
  193. struct tc_u32_pcnt
  194. {
  195. __u64 rcnt;
  196. __u64 rhit;
  197. __u64 kcnts[0];
  198. };
  199. /* Flags */
  200. #define TC_U32_TERMINAL 1
  201. #define TC_U32_OFFSET 2
  202. #define TC_U32_VAROFFSET 4
  203. #define TC_U32_EAT 8
  204. #define TC_U32_MAXDEPTH 8
  205. /* RSVP filter */
  206. enum
  207. {
  208. TCA_RSVP_UNSPEC,
  209. TCA_RSVP_CLASSID,
  210. TCA_RSVP_DST,
  211. TCA_RSVP_SRC,
  212. TCA_RSVP_PINFO,
  213. TCA_RSVP_POLICE,
  214. TCA_RSVP_ACT,
  215. __TCA_RSVP_MAX
  216. };
  217. #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
  218. struct tc_rsvp_gpi
  219. {
  220. __u32 key;
  221. __u32 mask;
  222. int offset;
  223. };
  224. struct tc_rsvp_pinfo
  225. {
  226. struct tc_rsvp_gpi dpi;
  227. struct tc_rsvp_gpi spi;
  228. __u8 protocol;
  229. __u8 tunnelid;
  230. __u8 tunnelhdr;
  231. __u8 pad;
  232. };
  233. /* ROUTE filter */
  234. enum
  235. {
  236. TCA_ROUTE4_UNSPEC,
  237. TCA_ROUTE4_CLASSID,
  238. TCA_ROUTE4_TO,
  239. TCA_ROUTE4_FROM,
  240. TCA_ROUTE4_IIF,
  241. TCA_ROUTE4_POLICE,
  242. TCA_ROUTE4_ACT,
  243. __TCA_ROUTE4_MAX
  244. };
  245. #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
  246. /* FW filter */
  247. enum
  248. {
  249. TCA_FW_UNSPEC,
  250. TCA_FW_CLASSID,
  251. TCA_FW_POLICE,
  252. TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
  253. TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
  254. TCA_FW_MASK,
  255. __TCA_FW_MAX
  256. };
  257. #define TCA_FW_MAX (__TCA_FW_MAX - 1)
  258. /* TC index filter */
  259. enum
  260. {
  261. TCA_TCINDEX_UNSPEC,
  262. TCA_TCINDEX_HASH,
  263. TCA_TCINDEX_MASK,
  264. TCA_TCINDEX_SHIFT,
  265. TCA_TCINDEX_FALL_THROUGH,
  266. TCA_TCINDEX_CLASSID,
  267. TCA_TCINDEX_POLICE,
  268. TCA_TCINDEX_ACT,
  269. __TCA_TCINDEX_MAX
  270. };
  271. #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1)
  272. /* Basic filter */
  273. enum
  274. {
  275. TCA_BASIC_UNSPEC,
  276. TCA_BASIC_CLASSID,
  277. TCA_BASIC_EMATCHES,
  278. TCA_BASIC_ACT,
  279. TCA_BASIC_POLICE,
  280. __TCA_BASIC_MAX
  281. };
  282. #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
  283. /* Extended Matches */
  284. struct tcf_ematch_tree_hdr
  285. {
  286. __u16 nmatches;
  287. __u16 progid;
  288. };
  289. enum
  290. {
  291. TCA_EMATCH_TREE_UNSPEC,
  292. TCA_EMATCH_TREE_HDR,
  293. TCA_EMATCH_TREE_LIST,
  294. __TCA_EMATCH_TREE_MAX
  295. };
  296. #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
  297. struct tcf_ematch_hdr
  298. {
  299. __u16 matchid;
  300. __u16 kind;
  301. __u16 flags;
  302. __u16 pad; /* currently unused */
  303. };
  304. /* 0 1
  305. * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
  306. * +-----------------------+-+-+---+
  307. * | Unused |S|I| R |
  308. * +-----------------------+-+-+---+
  309. *
  310. * R(2) ::= relation to next ematch
  311. * where: 0 0 END (last ematch)
  312. * 0 1 AND
  313. * 1 0 OR
  314. * 1 1 Unused (invalid)
  315. * I(1) ::= invert result
  316. * S(1) ::= simple payload
  317. */
  318. #define TCF_EM_REL_END 0
  319. #define TCF_EM_REL_AND (1<<0)
  320. #define TCF_EM_REL_OR (1<<1)
  321. #define TCF_EM_INVERT (1<<2)
  322. #define TCF_EM_SIMPLE (1<<3)
  323. #define TCF_EM_REL_MASK 3
  324. #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
  325. enum
  326. {
  327. TCF_LAYER_LINK,
  328. TCF_LAYER_NETWORK,
  329. TCF_LAYER_TRANSPORT,
  330. __TCF_LAYER_MAX
  331. };
  332. #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
  333. /* Ematch type assignments
  334. * 1..32767 Reserved for ematches inside kernel tree
  335. * 32768..65535 Free to use, not reliable
  336. */
  337. enum
  338. {
  339. TCF_EM_CONTAINER,
  340. TCF_EM_CMP,
  341. TCF_EM_NBYTE,
  342. TCF_EM_U32,
  343. TCF_EM_META,
  344. TCF_EM_TEXT,
  345. __TCF_EM_MAX
  346. };
  347. enum
  348. {
  349. TCF_EM_PROG_TC
  350. };
  351. enum
  352. {
  353. TCF_EM_OPND_EQ,
  354. TCF_EM_OPND_GT,
  355. TCF_EM_OPND_LT
  356. };
  357. #endif