Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
| 279 | }; |
| 280 | |
| 281 | /* ROUTE filter */ |
| 282 | |
| 283 | enum |
| 284 | { |
| 285 | TCA_ROUTE4_UNSPEC, |
| 286 | TCA_ROUTE4_CLASSID, |
| 287 | TCA_ROUTE4_TO, |
| 288 | TCA_ROUTE4_FROM, |
| 289 | TCA_ROUTE4_IIF, |
| 290 | TCA_ROUTE4_POLICE, |
| 291 | TCA_ROUTE4_ACT, |
| 292 | __TCA_ROUTE4_MAX |
| 293 | }; |
| 294 | |
| 295 | #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1) |
| 296 | |
| 297 | |
| 298 | /* FW filter */ |
| 299 | |
| 300 | enum |
| 301 | { |
| 302 | TCA_FW_UNSPEC, |
| 303 | TCA_FW_CLASSID, |
| 304 | TCA_FW_POLICE, |
| 305 | TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */ |
| 306 | TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */ |
| 307 | __TCA_FW_MAX |
| 308 | }; |
| 309 | |
| 310 | #define TCA_FW_MAX (__TCA_FW_MAX - 1) |
| 311 | |
| 312 | /* TC index filter */ |
| 313 | |
| 314 | enum |
| 315 | { |
| 316 | TCA_TCINDEX_UNSPEC, |
| 317 | TCA_TCINDEX_HASH, |
| 318 | TCA_TCINDEX_MASK, |
| 319 | TCA_TCINDEX_SHIFT, |
| 320 | TCA_TCINDEX_FALL_THROUGH, |
| 321 | TCA_TCINDEX_CLASSID, |
| 322 | TCA_TCINDEX_POLICE, |
| 323 | TCA_TCINDEX_ACT, |
| 324 | __TCA_TCINDEX_MAX |
| 325 | }; |
| 326 | |
| 327 | #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) |
| 328 | |
| 329 | /* Basic filter */ |
| 330 | |
| 331 | enum |
| 332 | { |
| 333 | TCA_BASIC_UNSPEC, |
| 334 | TCA_BASIC_CLASSID, |
| 335 | TCA_BASIC_EMATCHES, |
| 336 | TCA_BASIC_ACT, |
| 337 | TCA_BASIC_POLICE, |
| 338 | __TCA_BASIC_MAX |
| 339 | }; |
| 340 | |
| 341 | #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) |
| 342 | |
| 343 | /* Extended Matches */ |
| 344 | |
| 345 | struct tcf_ematch_tree_hdr |
| 346 | { |
| 347 | __u16 nmatches; |
| 348 | __u16 progid; |
| 349 | }; |
| 350 | |
| 351 | enum |
| 352 | { |
| 353 | TCA_EMATCH_TREE_UNSPEC, |
| 354 | TCA_EMATCH_TREE_HDR, |
| 355 | TCA_EMATCH_TREE_LIST, |
| 356 | __TCA_EMATCH_TREE_MAX |
| 357 | }; |
| 358 | #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) |
| 359 | |
| 360 | struct tcf_ematch_hdr |
| 361 | { |
| 362 | __u16 matchid; |
| 363 | __u16 kind; |
| 364 | __u16 flags; |
| 365 | __u16 pad; /* currently unused */ |
| 366 | }; |
| 367 | |
| 368 | /* 0 1 |
| 369 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 |
| 370 | * +-----------------------+-+-+---+ |
| 371 | * | Unused |S|I| R | |
| 372 | * +-----------------------+-+-+---+ |
| 373 | * |
| 374 | * R(2) ::= relation to next ematch |
| 375 | * where: 0 0 END (last ematch) |
| 376 | * 0 1 AND |
| 377 | * 1 0 OR |
| 378 | * 1 1 Unused (invalid) |
| 379 | * I(1) ::= invert result |
| 380 | * S(1) ::= simple payload |
| 381 | */ |
| 382 | #define TCF_EM_REL_END 0 |
| 383 | #define TCF_EM_REL_AND (1<<0) |
| 384 | #define TCF_EM_REL_OR (1<<1) |
| 385 | #define TCF_EM_INVERT (1<<2) |
| 386 | #define TCF_EM_SIMPLE (1<<3) |
| 387 | |
| 388 | #define TCF_EM_REL_MASK 3 |
| 389 | #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) |
| 390 | |
| 391 | enum |
| 392 | { |
| 393 | TCF_LAYER_LINK, |
| 394 | TCF_LAYER_NETWORK, |
| 395 | TCF_LAYER_TRANSPORT, |
| 396 | __TCF_LAYER_MAX |
| 397 | }; |
| 398 | #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) |
| 399 | |
| 400 | /* Ematch type assignments |
| 401 | * 1..32767 Reserved for ematches inside kernel tree |
| 402 | * 32768..65535 Free to use, not reliable |
| 403 | */ |
| 404 | enum |
| 405 | { |
| 406 | TCF_EM_CONTAINER, |
| 407 | TCF_EM_CMP, |
| 408 | TCF_EM_NBYTE, |
| 409 | TCF_EM_U32, |
| 410 | TCF_EM_META, |
Thomas Graf | d675c98 | 2005-06-23 21:00:58 -0700 | [diff] [blame] | 411 | TCF_EM_TEXT, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | __TCF_EM_MAX |
| 413 | }; |
| 414 | |
| 415 | enum |
| 416 | { |
| 417 | TCF_EM_PROG_TC |
| 418 | }; |
| 419 | |
| 420 | enum |
| 421 | { |
| 422 | TCF_EM_OPND_EQ, |
| 423 | TCF_EM_OPND_GT, |
| 424 | TCF_EM_OPND_LT |
| 425 | }; |
| 426 | |
| 427 | #endif |