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 __u8 pad; 280 }; 281 282 /* ROUTE filter */ 283 284 enum 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 */ 300 301 enum 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_MASK, 309 __TCA_FW_MAX 310 }; 311 312 #define TCA_FW_MAX (__TCA_FW_MAX - 1) 313 314 /* TC index filter */ 315 316 enum 317 { 318 TCA_TCINDEX_UNSPEC, 319 TCA_TCINDEX_HASH, 320 TCA_TCINDEX_MASK, 321 TCA_TCINDEX_SHIFT, 322 TCA_TCINDEX_FALL_THROUGH, 323 TCA_TCINDEX_CLASSID, 324 TCA_TCINDEX_POLICE, 325 TCA_TCINDEX_ACT, 326 __TCA_TCINDEX_MAX 327 }; 328 329 #define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1) 330 331 /* Basic filter */ 332 333 enum 334 { 335 TCA_BASIC_UNSPEC, 336 TCA_BASIC_CLASSID, 337 TCA_BASIC_EMATCHES, 338 TCA_BASIC_ACT, 339 TCA_BASIC_POLICE, 340 __TCA_BASIC_MAX 341 }; 342 343 #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1) 344 345 /* Extended Matches */ 346 347 struct tcf_ematch_tree_hdr 348 { 349 __u16 nmatches; 350 __u16 progid; 351 }; 352 353 enum 354 { 355 TCA_EMATCH_TREE_UNSPEC, 356 TCA_EMATCH_TREE_HDR, 357 TCA_EMATCH_TREE_LIST, 358 __TCA_EMATCH_TREE_MAX 359 }; 360 #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1) 361 362 struct tcf_ematch_hdr 363 { 364 __u16 matchid; 365 __u16 kind; 366 __u16 flags; 367 __u16 pad; /* currently unused */ 368 }; 369 370 /* 0 1 371 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 372 * +-----------------------+-+-+---+ 373 * | Unused |S|I| R | 374 * +-----------------------+-+-+---+ 375 * 376 * R(2) ::= relation to next ematch 377 * where: 0 0 END (last ematch) 378 * 0 1 AND 379 * 1 0 OR 380 * 1 1 Unused (invalid) 381 * I(1) ::= invert result 382 * S(1) ::= simple payload 383 */ 384 #define TCF_EM_REL_END 0 385 #define TCF_EM_REL_AND (1<<0) 386 #define TCF_EM_REL_OR (1<<1) 387 #define TCF_EM_INVERT (1<<2) 388 #define TCF_EM_SIMPLE (1<<3) 389 390 #define TCF_EM_REL_MASK 3 391 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK) 392 393 enum 394 { 395 TCF_LAYER_LINK, 396 TCF_LAYER_NETWORK, 397 TCF_LAYER_TRANSPORT, 398 __TCF_LAYER_MAX 399 }; 400 #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1) 401 402 /* Ematch type assignments 403 * 1..32767 Reserved for ematches inside kernel tree 404 * 32768..65535 Free to use, not reliable 405 */ 406 #define TCF_EM_CONTAINER 0 407 #define TCF_EM_CMP 1 408 #define TCF_EM_NBYTE 2 409 #define TCF_EM_U32 3 410 #define TCF_EM_META 4 411 #define TCF_EM_TEXT 5 412 #define TCF_EM_MAX 5 413 414 enum 415 { 416 TCF_EM_PROG_TC 417 }; 418 419 enum 420 { 421 TCF_EM_OPND_EQ, 422 TCF_EM_OPND_GT, 423 TCF_EM_OPND_LT 424 }; 425 426 #endif 427
