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 * 18bit 0: when set -> this packet has been munged already 19 20bit 1: when set -> It is ok to munge this packet 21 22bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded 23assume loop 24 25bit 6,7: Where this packet was last seen 260: Above the transmit example at the socket level 271: on the Ingress 282: on the Egress 29 30bit 8: when set --> Request not to classify on ingress. 31 32bits 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 */ 77enum 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*/ 110enum 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 120struct 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 140struct tcf_t 141{ 142 __u64 install; 143 __u64 lastuse; 144 __u64 expires; 145}; 146 147struct 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 160enum 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 184enum 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 202struct tc_u32_key 203{ 204 __u32 mask; 205 __u32 val; 206 int off; 207 int offmask; 208}; 209 210struct 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 225struct tc_u32_mark 226{ 227 __u32 val; 228 __u32 mask; 229 __u32 success; 230}; 231 232struct 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 251enum 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 265struct tc_rsvp_gpi 266{ 267 __u32 key; 268 __u32 mask; 269 int offset; 270}; 271 272struct 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 __u8 pad; 280}; 281 282/* ROUTE filter */ 283 284enum 285{ 286 TCA_ROUTE4_UNSPEC, 287 TCA_ROUTE4_CLASSID, 288 TCA_ROUTE4_TO, 289 TCA_ROUTE4_FROM, 290 TCA_ROUTE4_IIF, 291 TCA_ROUTE4_POLICE, 292 TCA_ROUTE4_ACT, 293 __TCA_ROUTE4_MAX 294}; 295 296#define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1) 297 298 299/* FW filter */ 300 301enum 302{ 303 TCA_FW_UNSPEC, 304 TCA_FW_CLASSID, 305 TCA_FW_POLICE, 306 TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */ 307 TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */ 308 __TCA_FW_MAX 309}; 310 311#define TCA_FW_MAX (__TCA_FW_MAX - 1) 312 313/* TC index filter */ 314 315enum 316{ 317 TCA_TCINDEX_UNSPEC, 318 TCA_TCINDEX_HASH, 319 TCA_TCINDEX_MASK, 320 TCA_TCINDEX_SHIFT, 321 TCA_TCINDEX_FALL_THROUGH, 322 TCA_TCINDEX_CLASSID, 323 TCA_TCINDEX_POLICE, 324 TCA_TCINDEX_ACT, 325 __TCA_TCINDEX_MAX 326}; 327 328#define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) 329 330/* Basic filter */ 331 332enum 333{ 334 TCA_BASIC_UNSPEC, 335 TCA_BASIC_CLASSID, 336 TCA_BASIC_EMATCHES, 337 TCA_BASIC_ACT, 338 TCA_BASIC_POLICE, 339 __TCA_BASIC_MAX 340}; 341 342#define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) 343 344/* Extended Matches */ 345 346struct tcf_ematch_tree_hdr 347{ 348 __u16 nmatches; 349 __u16 progid; 350}; 351 352enum 353{ 354 TCA_EMATCH_TREE_UNSPEC, 355 TCA_EMATCH_TREE_HDR, 356 TCA_EMATCH_TREE_LIST, 357 __TCA_EMATCH_TREE_MAX 358}; 359#define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) 360 361struct tcf_ematch_hdr 362{ 363 __u16 matchid; 364 __u16 kind; 365 __u16 flags; 366 __u16 pad; /* currently unused */ 367}; 368 369/* 0 1 370 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 371 * +-----------------------+-+-+---+ 372 * | Unused |S|I| R | 373 * +-----------------------+-+-+---+ 374 * 375 * R(2) ::= relation to next ematch 376 * where: 0 0 END (last ematch) 377 * 0 1 AND 378 * 1 0 OR 379 * 1 1 Unused (invalid) 380 * I(1) ::= invert result 381 * S(1) ::= simple payload 382 */ 383#define TCF_EM_REL_END 0 384#define TCF_EM_REL_AND (1<<0) 385#define TCF_EM_REL_OR (1<<1) 386#define TCF_EM_INVERT (1<<2) 387#define TCF_EM_SIMPLE (1<<3) 388 389#define TCF_EM_REL_MASK 3 390#define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) 391 392enum 393{ 394 TCF_LAYER_LINK, 395 TCF_LAYER_NETWORK, 396 TCF_LAYER_TRANSPORT, 397 __TCF_LAYER_MAX 398}; 399#define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) 400 401/* Ematch type assignments 402 * 1..32767 Reserved for ematches inside kernel tree 403 * 32768..65535 Free to use, not reliable 404 */ 405enum 406{ 407 TCF_EM_CONTAINER, 408 TCF_EM_CMP, 409 TCF_EM_NBYTE, 410 TCF_EM_U32, 411 TCF_EM_META, 412 TCF_EM_TEXT, 413 __TCF_EM_MAX 414}; 415 416enum 417{ 418 TCF_EM_PROG_TC 419}; 420 421enum 422{ 423 TCF_EM_OPND_EQ, 424 TCF_EM_OPND_GT, 425 TCF_EM_OPND_LT 426}; 427 428#endif 429