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 * 19bit 0: when set -> this packet has been munged already 20 21bit 1: when set -> It is ok to munge this packet 22 23bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded 24assume loop 25 26bit 6,7: Where this packet was last seen 270: Above the transmit example at the socket level 281: on the Ingress 292: on the Egress 30 31bit 8: when set --> Request not to classify on ingress. 32 33bits 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 */ 78enum 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*/ 111enum 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 121struct 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 141struct tcf_t 142{ 143 __u64 install; 144 __u64 lastuse; 145 __u64 expires; 146}; 147 148struct 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 161enum 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 185enum 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 203struct tc_u32_key 204{ 205 __be32 mask; 206 __be32 val; 207 int off; 208 int offmask; 209}; 210 211struct 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 226struct tc_u32_mark 227{ 228 __u32 val; 229 __u32 mask; 230 __u32 success; 231}; 232 233struct 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 252enum 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 266struct tc_rsvp_gpi 267{ 268 __u32 key; 269 __u32 mask; 270 int offset; 271}; 272 273struct 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 285enum 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 302enum 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 317enum 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 334enum 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 358enum 359{ 360 FLOW_MODE_MAP, 361 FLOW_MODE_HASH, 362}; 363 364enum 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 386enum 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 401enum 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 414struct tcf_ematch_tree_hdr 415{ 416 __u16 nmatches; 417 __u16 progid; 418}; 419 420enum 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 429struct 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 460enum 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 482enum 483{ 484 TCF_EM_PROG_TC 485}; 486 487enum 488{ 489 TCF_EM_OPND_EQ, 490 TCF_EM_OPND_GT, 491 TCF_EM_OPND_LT 492}; 493 494#endif 495