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 { 80 TCA_ACT_UNSPEC, 81 TCA_ACT_KIND, 82 TCA_ACT_OPTIONS, 83 TCA_ACT_INDEX, 84 TCA_ACT_STATS, 85 __TCA_ACT_MAX 86 }; 87 88 #define TCA_ACT_MAX __TCA_ACT_MAX 89 #define TCA_OLD_COMPAT (TCA_ACT_MAX+1) 90 #define TCA_ACT_MAX_PRIO 32 91 #define TCA_ACT_BIND 1 92 #define TCA_ACT_NOBIND 0 93 #define TCA_ACT_UNBIND 1 94 #define TCA_ACT_NOUNBIND 0 95 #define TCA_ACT_REPLACE 1 96 #define TCA_ACT_NOREPLACE 0 97 #define MAX_REC_LOOP 4 98 #define MAX_RED_LOOP 4 99 100 #define TC_ACT_UNSPEC (-1) 101 #define TC_ACT_OK 0 102 #define TC_ACT_RECLASSIFY 1 103 #define TC_ACT_SHOT 2 104 #define TC_ACT_PIPE 3 105 #define TC_ACT_STOLEN 4 106 #define TC_ACT_QUEUED 5 107 #define TC_ACT_REPEAT 6 108 #define TC_ACT_JUMP 0x10000000 109 110 /* Action type identifiers*/ 111 enum 112 { 113 TCA_ID_UNSPEC=0, 114 TCA_ID_POLICE=1, 115 /* other actions go here */ 116 __TCA_ID_MAX=255 117 }; 118 119 #define TCA_ID_MAX __TCA_ID_MAX 120 121 struct tc_police 122 { 123 __u32 index; 124 int action; 125 #define TC_POLICE_UNSPEC TC_ACT_UNSPEC 126 #define TC_POLICE_OK TC_ACT_OK 127 #define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY 128 #define TC_POLICE_SHOT TC_ACT_SHOT 129 #define TC_POLICE_PIPE TC_ACT_PIPE 130 131 __u32 limit; 132 __u32 burst; 133 __u32 mtu; 134 struct tc_ratespec rate; 135 struct tc_ratespec peakrate; 136 int refcnt; 137 int bindcnt; 138 __u32 capab; 139 }; 140 141 struct tcf_t 142 { 143 __u64 install; 144 __u64 lastuse; 145 __u64 expires; 146 }; 147 148 struct tc_cnt 149 { 150 int refcnt; 151 int bindcnt; 152 }; 153 154 #define tc_gen \ 155 __u32 index; \ 156 __u32 capab; \ 157 int action; \ 158 int refcnt; \ 159 int bindcnt 160 161 enum 162 { 163 TCA_POLICE_UNSPEC, 164 TCA_POLICE_TBF, 165 TCA_POLICE_RATE, 166 TCA_POLICE_PEAKRATE, 167 TCA_POLICE_AVRATE, 168 TCA_POLICE_RESULT, 169 __TCA_POLICE_MAX 170 #define TCA_POLICE_RESULT TCA_POLICE_RESULT 171 }; 172 173 #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1) 174 175 /* U32 filters */ 176 177 #define TC_U32_HTID(h) ((h)&0xFFF00000) 178 #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20) 179 #define TC_U32_HASH(h) (((h)>>12)&0xFF) 180 #define TC_U32_NODE(h) ((h)&0xFFF) 181 #define TC_U32_KEY(h) ((h)&0xFFFFF) 182 #define TC_U32_UNSPEC 0 183 #define TC_U32_ROOT (0xFFF00000) 184 185 enum 186 { 187 TCA_U32_UNSPEC, 188 TCA_U32_CLASSID, 189 TCA_U32_HASH, 190 TCA_U32_LINK, 191 TCA_U32_DIVISOR, 192 TCA_U32_SEL, 193 TCA_U32_POLICE, 194 TCA_U32_ACT, 195 TCA_U32_INDEV, 196 TCA_U32_PCNT, 197 TCA_U32_MARK, 198 __TCA_U32_MAX 199 }; 200 201 #define TCA_U32_MAX (__TCA_U32_MAX - 1) 202 203 struct tc_u32_key 204 { 205 __be32 mask; 206 __be32 val; 207 int off; 208 int offmask; 209 }; 210 211 struct tc_u32_sel 212 { 213 unsigned char flags; 214 unsigned char offshift; 215 unsigned char nkeys; 216 217 __be16 offmask; 218 __u16 off; 219 short offoff; 220 221 short hoff; 222 __be32 hmask; 223 struct tc_u32_key keys[0]; 224 }; 225 226 struct tc_u32_mark 227 { 228 __u32 val; 229 __u32 mask; 230 __u32 success; 231 }; 232 233 struct tc_u32_pcnt 234 { 235 __u64 rcnt; 236 __u64 rhit; 237 __u64 kcnts[0]; 238 }; 239 240 /* Flags */ 241 242 #define TC_U32_TERMINAL 1 243 #define TC_U32_OFFSET 2 244 #define TC_U32_VAROFFSET 4 245 #define TC_U32_EAT 8 246 247 #define TC_U32_MAXDEPTH 8 248 249 250 /* RSVP filter */ 251 252 enum 253 { 254 TCA_RSVP_UNSPEC, 255 TCA_RSVP_CLASSID, 256 TCA_RSVP_DST, 257 TCA_RSVP_SRC, 258 TCA_RSVP_PINFO, 259 TCA_RSVP_POLICE, 260 TCA_RSVP_ACT, 261 __TCA_RSVP_MAX 262 }; 263 264 #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 ) 265 266 struct tc_rsvp_gpi 267 { 268 __u32 key; 269 __u32 mask; 270 int offset; 271 }; 272 273 struct tc_rsvp_pinfo 274 { 275 struct tc_rsvp_gpi dpi; 276 struct tc_rsvp_gpi spi; 277 __u8 protocol; 278 __u8 tunnelid; 279 __u8 tunnelhdr; 280 __u8 pad; 281 }; 282 283 /* ROUTE filter */ 284 285 enum 286 { 287 TCA_ROUTE4_UNSPEC, 288 TCA_ROUTE4_CLASSID, 289 TCA_ROUTE4_TO, 290 TCA_ROUTE4_FROM, 291 TCA_ROUTE4_IIF, 292 TCA_ROUTE4_POLICE, 293 TCA_ROUTE4_ACT, 294 __TCA_ROUTE4_MAX 295 }; 296 297 #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1) 298 299 300 /* FW filter */ 301 302 enum 303 { 304 TCA_FW_UNSPEC, 305 TCA_FW_CLASSID, 306 TCA_FW_POLICE, 307 TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */ 308 TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */ 309 TCA_FW_MASK, 310 __TCA_FW_MAX 311 }; 312 313 #define TCA_FW_MAX (__TCA_FW_MAX - 1) 314 315 /* TC index filter */ 316 317 enum 318 { 319 TCA_TCINDEX_UNSPEC, 320 TCA_TCINDEX_HASH, 321 TCA_TCINDEX_MASK, 322 TCA_TCINDEX_SHIFT, 323 TCA_TCINDEX_FALL_THROUGH, 324 TCA_TCINDEX_CLASSID, 325 TCA_TCINDEX_POLICE, 326 TCA_TCINDEX_ACT, 327 __TCA_TCINDEX_MAX 328 }; 329 330 #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) 331 332 /* Flow filter */ 333 334 enum 335 { 336 FLOW_KEY_SRC, 337 FLOW_KEY_DST, 338 FLOW_KEY_PROTO, 339 FLOW_KEY_PROTO_SRC, 340 FLOW_KEY_PROTO_DST, 341 FLOW_KEY_IIF, 342 FLOW_KEY_PRIORITY, 343 FLOW_KEY_MARK, 344 FLOW_KEY_NFCT, 345 FLOW_KEY_NFCT_SRC, 346 FLOW_KEY_NFCT_DST, 347 FLOW_KEY_NFCT_PROTO_SRC, 348 FLOW_KEY_NFCT_PROTO_DST, 349 FLOW_KEY_RTCLASSID, 350 FLOW_KEY_SKUID, 351 FLOW_KEY_SKGID, 352 FLOW_KEY_VLAN_TAG, 353 __FLOW_KEY_MAX, 354 }; 355 356 #define FLOW_KEY_MAX (__FLOW_KEY_MAX - 1) 357 358 enum 359 { 360 FLOW_MODE_MAP, 361 FLOW_MODE_HASH, 362 }; 363 364 enum 365 { 366 TCA_FLOW_UNSPEC, 367 TCA_FLOW_KEYS, 368 TCA_FLOW_MODE, 369 TCA_FLOW_BASECLASS, 370 TCA_FLOW_RSHIFT, 371 TCA_FLOW_ADDEND, 372 TCA_FLOW_MASK, 373 TCA_FLOW_XOR, 374 TCA_FLOW_DIVISOR, 375 TCA_FLOW_ACT, 376 TCA_FLOW_POLICE, 377 TCA_FLOW_EMATCHES, 378 TCA_FLOW_PERTURB, 379 __TCA_FLOW_MAX 380 }; 381 382 #define TCA_FLOW_MAX (__TCA_FLOW_MAX - 1) 383 384 /* Basic filter */ 385 386 enum 387 { 388 TCA_BASIC_UNSPEC, 389 TCA_BASIC_CLASSID, 390 TCA_BASIC_EMATCHES, 391 TCA_BASIC_ACT, 392 TCA_BASIC_POLICE, 393 __TCA_BASIC_MAX 394 }; 395 396 #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) 397 398 399 /* Cgroup classifier */ 400 401 enum 402 { 403 TCA_CGROUP_UNSPEC, 404 TCA_CGROUP_ACT, 405 TCA_CGROUP_POLICE, 406 TCA_CGROUP_EMATCHES, 407 __TCA_CGROUP_MAX, 408 }; 409 410 #define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1) 411 412 /* Extended Matches */ 413 414 struct tcf_ematch_tree_hdr 415 { 416 __u16 nmatches; 417 __u16 progid; 418 }; 419 420 enum 421 { 422 TCA_EMATCH_TREE_UNSPEC, 423 TCA_EMATCH_TREE_HDR, 424 TCA_EMATCH_TREE_LIST, 425 __TCA_EMATCH_TREE_MAX 426 }; 427 #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) 428 429 struct tcf_ematch_hdr 430 { 431 __u16 matchid; 432 __u16 kind; 433 __u16 flags; 434 __u16 pad; /* currently unused */ 435 }; 436 437 /* 0 1 438 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 439 * +-----------------------+-+-+---+ 440 * | Unused |S|I| R | 441 * +-----------------------+-+-+---+ 442 * 443 * R(2) ::= relation to next ematch 444 * where: 0 0 END (last ematch) 445 * 0 1 AND 446 * 1 0 OR 447 * 1 1 Unused (invalid) 448 * I(1) ::= invert result 449 * S(1) ::= simple payload 450 */ 451 #define TCF_EM_REL_END 0 452 #define TCF_EM_REL_AND (1<<0) 453 #define TCF_EM_REL_OR (1<<1) 454 #define TCF_EM_INVERT (1<<2) 455 #define TCF_EM_SIMPLE (1<<3) 456 457 #define TCF_EM_REL_MASK 3 458 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) 459 460 enum 461 { 462 TCF_LAYER_LINK, 463 TCF_LAYER_NETWORK, 464 TCF_LAYER_TRANSPORT, 465 __TCF_LAYER_MAX 466 }; 467 #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) 468 469 /* Ematch type assignments 470 * 1..32767 Reserved for ematches inside kernel tree 471 * 32768..65535 Free to use, not reliable 472 */ 473 #define TCF_EM_CONTAINER 0 474 #define TCF_EM_CMP 1 475 #define TCF_EM_NBYTE 2 476 #define TCF_EM_U32 3 477 #define TCF_EM_META 4 478 #define TCF_EM_TEXT 5 479 #define TCF_EM_VLAN 6 480 #define TCF_EM_MAX 6 481 482 enum 483 { 484 TCF_EM_PROG_TC 485 }; 486 487 enum 488 { 489 TCF_EM_OPND_EQ, 490 TCF_EM_OPND_GT, 491 TCF_EM_OPND_LT 492 }; 493 494 #endif 495
