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