include/uapi/linux/pkt_cls.h

   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 #ifdef __KERNEL__
   8 /* I think i could have done better macros ; for now this is stolen from
   9  * some arch/mips code - jhs
  10 */
  11 #define _TC_MAKE32(x) ((x))
  12
  13 #define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
  14 #define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
  15 #define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
  16 #define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
  17
  18 /* verdict bit breakdown
  19  *
  20 bit 0: when set -> this packet has been munged already
  21
  22 bit 1: when set -> It is ok to munge this packet
  23
  24 bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
  25 assume loop
  26
  27 bit 6,7: Where this packet was last seen
  28 0: Above the transmit example at the socket level
  29 1: on the Ingress
  30 2: on the Egress
  31
  32 bit 8: when set --> Request not to classify on ingress.
  33
  34 bits 9,10,11: redirect counter -  redirect TTL. Loop avoidance
  35
  36  *
  37  * */
  38
  39 #define S_TC_FROM          _TC_MAKE32(6)
  40 #define M_TC_FROM          _TC_MAKEMASK(2,S_TC_FROM)
  41 #define G_TC_FROM(x)       _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
  42 #define V_TC_FROM(x)       _TC_MAKEVALUE(x,S_TC_FROM)
  43 #define SET_TC_FROM(v,n)   ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
  44 #define AT_STACK        0x0
  45 #define AT_INGRESS      0x1
  46 #define AT_EGRESS       0x2
  47
  48 #define TC_NCLS          _TC_MAKEMASK1(8)
  49 #define SET_TC_NCLS(v)   ( TC_NCLS | (v & ~TC_NCLS))
  50 #define CLR_TC_NCLS(v)   ( v & ~TC_NCLS)
  51
  52 #define S_TC_AT          _TC_MAKE32(12)
  53 #define M_TC_AT          _TC_MAKEMASK(2,S_TC_AT)
  54 #define G_TC_AT(x)       _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
  55 #define V_TC_AT(x)       _TC_MAKEVALUE(x,S_TC_AT)
  56 #define SET_TC_AT(v,n)   ((V_TC_AT(n)) | (v & ~M_TC_AT))
  57
  58 #define MAX_REC_LOOP 4
  59 #define MAX_RED_LOOP 4
  60 #endif
  61
  62 /* Action attributes */
  63 enum {
  64         TCA_ACT_UNSPEC,
  65         TCA_ACT_KIND,
  66         TCA_ACT_OPTIONS,
  67         TCA_ACT_INDEX,
  68         TCA_ACT_STATS,
  69         TCA_ACT_PAD,
  70         __TCA_ACT_MAX
  71 };
  72
  73 #define TCA_ACT_MAX __TCA_ACT_MAX
  74 #define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
  75 #define TCA_ACT_MAX_PRIO 32
  76 #define TCA_ACT_BIND    1
  77 #define TCA_ACT_NOBIND  0
  78 #define TCA_ACT_UNBIND  1
  79 #define TCA_ACT_NOUNBIND        0
  80 #define TCA_ACT_REPLACE         1
  81 #define TCA_ACT_NOREPLACE       0
  82
  83 #define TC_ACT_UNSPEC   (-1)
  84 #define TC_ACT_OK               0
  85 #define TC_ACT_RECLASSIFY       1
  86 #define TC_ACT_SHOT             2
  87 #define TC_ACT_PIPE             3
  88 #define TC_ACT_STOLEN           4
  89 #define TC_ACT_QUEUED           5
  90 #define TC_ACT_REPEAT           6
  91 #define TC_ACT_REDIRECT         7
  92 #define TC_ACT_JUMP             0x10000000
  93
  94 /* Action type identifiers*/
  95 enum {
  96         TCA_ID_UNSPEC=0,
  97         TCA_ID_POLICE=1,
  98         /* other actions go here */
  99         __TCA_ID_MAX=255
 100 };
 101
 102 #define TCA_ID_MAX __TCA_ID_MAX
 103
 104 struct tc_police {
 105         __u32                   index;
 106         int                     action;
 107 #define TC_POLICE_UNSPEC        TC_ACT_UNSPEC
 108 #define TC_POLICE_OK            TC_ACT_OK
 109 #define TC_POLICE_RECLASSIFY    TC_ACT_RECLASSIFY
 110 #define TC_POLICE_SHOT          TC_ACT_SHOT
 111 #define TC_POLICE_PIPE          TC_ACT_PIPE
 112
 113         __u32                   limit;
 114         __u32                   burst;
 115         __u32                   mtu;
 116         struct tc_ratespec      rate;
 117         struct tc_ratespec      peakrate;
 118         int                     refcnt;
 119         int                     bindcnt;
 120         __u32                   capab;
 121 };
 122
 123 struct tcf_t {
 124         __u64   install;
 125         __u64   lastuse;
 126         __u64   expires;
 127 };
 128
 129 struct tc_cnt {
 130         int                   refcnt;
 131         int                   bindcnt;
 132 };
 133
 134 #define tc_gen \
 135         __u32                 index; \
 136         __u32                 capab; \
 137         int                   action; \
 138         int                   refcnt; \
 139         int                   bindcnt
 140
 141 enum {
 142         TCA_POLICE_UNSPEC,
 143         TCA_POLICE_TBF,
 144         TCA_POLICE_RATE,
 145         TCA_POLICE_PEAKRATE,
 146         TCA_POLICE_AVRATE,
 147         TCA_POLICE_RESULT,
 148         TCA_POLICE_TM,
 149         TCA_POLICE_PAD,
 150         __TCA_POLICE_MAX
 151 #define TCA_POLICE_RESULT TCA_POLICE_RESULT
 152 };
 153
 154 #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
 155
 156 /* tca flags definitions */
 157 #define TCA_CLS_FLAGS_SKIP_HW   (1 << 0)
 158 #define TCA_CLS_FLAGS_SKIP_SW   (1 << 1)
 159
 160 /* U32 filters */
 161
 162 #define TC_U32_HTID(h) ((h)&0xFFF00000)
 163 #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
 164 #define TC_U32_HASH(h) (((h)>>12)&0xFF)
 165 #define TC_U32_NODE(h) ((h)&0xFFF)
 166 #define TC_U32_KEY(h) ((h)&0xFFFFF)
 167 #define TC_U32_UNSPEC   0
 168 #define TC_U32_ROOT     (0xFFF00000)
 169
 170 enum {
 171         TCA_U32_UNSPEC,
 172         TCA_U32_CLASSID,
 173         TCA_U32_HASH,
 174         TCA_U32_LINK,
 175         TCA_U32_DIVISOR,
 176         TCA_U32_SEL,
 177         TCA_U32_POLICE,
 178         TCA_U32_ACT,
 179         TCA_U32_INDEV,
 180         TCA_U32_PCNT,
 181         TCA_U32_MARK,
 182         TCA_U32_FLAGS,
 183         TCA_U32_PAD,
 184         __TCA_U32_MAX
 185 };
 186
 187 #define TCA_U32_MAX (__TCA_U32_MAX - 1)
 188
 189 struct tc_u32_key {
 190         __be32          mask;
 191         __be32          val;
 192         int             off;
 193         int             offmask;
 194 };
 195
 196 struct tc_u32_sel {
 197         unsigned char           flags;
 198         unsigned char           offshift;
 199         unsigned char           nkeys;
 200
 201         __be16                  offmask;
 202         __u16                   off;
 203         short                   offoff;
 204
 205         short                   hoff;
 206         __be32                  hmask;
 207         struct tc_u32_key       keys[0];
 208 };
 209
 210 struct tc_u32_mark {
 211         __u32           val;
 212         __u32           mask;
 213         __u32           success;
 214 };
 215
 216 struct tc_u32_pcnt {
 217         __u64 rcnt;
 218         __u64 rhit;
 219         __u64 kcnts[0];
 220 };
 221
 222 /* Flags */
 223
 224 #define TC_U32_TERMINAL         1
 225 #define TC_U32_OFFSET           2
 226 #define TC_U32_VAROFFSET        4
 227 #define TC_U32_EAT              8
 228
 229 #define TC_U32_MAXDEPTH 8
 230
 231
 232 /* RSVP filter */
 233
 234 enum {
 235         TCA_RSVP_UNSPEC,
 236         TCA_RSVP_CLASSID,
 237         TCA_RSVP_DST,
 238         TCA_RSVP_SRC,
 239         TCA_RSVP_PINFO,
 240         TCA_RSVP_POLICE,
 241         TCA_RSVP_ACT,
 242         __TCA_RSVP_MAX
 243 };
 244
 245 #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
 246
 247 struct tc_rsvp_gpi {
 248         __u32   key;
 249         __u32   mask;
 250         int     offset;
 251 };
 252
 253 struct tc_rsvp_pinfo {
 254         struct tc_rsvp_gpi dpi;
 255         struct tc_rsvp_gpi spi;
 256         __u8    protocol;
 257         __u8    tunnelid;
 258         __u8    tunnelhdr;
 259         __u8    pad;
 260 };
 261
 262 /* ROUTE filter */
 263
 264 enum {
 265         TCA_ROUTE4_UNSPEC,
 266         TCA_ROUTE4_CLASSID,
 267         TCA_ROUTE4_TO,
 268         TCA_ROUTE4_FROM,
 269         TCA_ROUTE4_IIF,
 270         TCA_ROUTE4_POLICE,
 271         TCA_ROUTE4_ACT,
 272         __TCA_ROUTE4_MAX
 273 };
 274
 275 #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
 276
 277
 278 /* FW filter */
 279
 280 enum {
 281         TCA_FW_UNSPEC,
 282         TCA_FW_CLASSID,
 283         TCA_FW_POLICE,
 284         TCA_FW_INDEV, /*  used by CONFIG_NET_CLS_IND */
 285         TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
 286         TCA_FW_MASK,
 287         __TCA_FW_MAX
 288 };
 289
 290 #define TCA_FW_MAX (__TCA_FW_MAX - 1)
 291
 292 /* TC index filter */
 293
 294 enum {
 295         TCA_TCINDEX_UNSPEC,
 296         TCA_TCINDEX_HASH,
 297         TCA_TCINDEX_MASK,
 298         TCA_TCINDEX_SHIFT,
 299         TCA_TCINDEX_FALL_THROUGH,
 300         TCA_TCINDEX_CLASSID,
 301         TCA_TCINDEX_POLICE,
 302         TCA_TCINDEX_ACT,
 303         __TCA_TCINDEX_MAX
 304 };
 305
 306 #define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
 307
 308 /* Flow filter */
 309
 310 enum {
 311         FLOW_KEY_SRC,
 312         FLOW_KEY_DST,
 313         FLOW_KEY_PROTO,
 314         FLOW_KEY_PROTO_SRC,
 315         FLOW_KEY_PROTO_DST,
 316         FLOW_KEY_IIF,
 317         FLOW_KEY_PRIORITY,
 318         FLOW_KEY_MARK,
 319         FLOW_KEY_NFCT,
 320         FLOW_KEY_NFCT_SRC,
 321         FLOW_KEY_NFCT_DST,
 322         FLOW_KEY_NFCT_PROTO_SRC,
 323         FLOW_KEY_NFCT_PROTO_DST,
 324         FLOW_KEY_RTCLASSID,
 325         FLOW_KEY_SKUID,
 326         FLOW_KEY_SKGID,
 327         FLOW_KEY_VLAN_TAG,
 328         FLOW_KEY_RXHASH,
 329         __FLOW_KEY_MAX,
 330 };
 331
 332 #define FLOW_KEY_MAX    (__FLOW_KEY_MAX - 1)
 333
 334 enum {
 335         FLOW_MODE_MAP,
 336         FLOW_MODE_HASH,
 337 };
 338
 339 enum {
 340         TCA_FLOW_UNSPEC,
 341         TCA_FLOW_KEYS,
 342         TCA_FLOW_MODE,
 343         TCA_FLOW_BASECLASS,
 344         TCA_FLOW_RSHIFT,
 345         TCA_FLOW_ADDEND,
 346         TCA_FLOW_MASK,
 347         TCA_FLOW_XOR,
 348         TCA_FLOW_DIVISOR,
 349         TCA_FLOW_ACT,
 350         TCA_FLOW_POLICE,
 351         TCA_FLOW_EMATCHES,
 352         TCA_FLOW_PERTURB,
 353         __TCA_FLOW_MAX
 354 };
 355
 356 #define TCA_FLOW_MAX    (__TCA_FLOW_MAX - 1)
 357
 358 /* Basic filter */
 359
 360 enum {
 361         TCA_BASIC_UNSPEC,
 362         TCA_BASIC_CLASSID,
 363         TCA_BASIC_EMATCHES,
 364         TCA_BASIC_ACT,
 365         TCA_BASIC_POLICE,
 366         __TCA_BASIC_MAX
 367 };
 368
 369 #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
 370
 371
 372 /* Cgroup classifier */
 373
 374 enum {
 375         TCA_CGROUP_UNSPEC,
 376         TCA_CGROUP_ACT,
 377         TCA_CGROUP_POLICE,
 378         TCA_CGROUP_EMATCHES,
 379         __TCA_CGROUP_MAX,
 380 };
 381
 382 #define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1)
 383
 384 /* BPF classifier */
 385
 386 #define TCA_BPF_FLAG_ACT_DIRECT         (1 << 0)
 387
 388 enum {
 389         TCA_BPF_UNSPEC,
 390         TCA_BPF_ACT,
 391         TCA_BPF_POLICE,
 392         TCA_BPF_CLASSID,
 393         TCA_BPF_OPS_LEN,
 394         TCA_BPF_OPS,
 395         TCA_BPF_FD,
 396         TCA_BPF_NAME,
 397         TCA_BPF_FLAGS,
 398         __TCA_BPF_MAX,
 399 };
 400
 401 #define TCA_BPF_MAX (__TCA_BPF_MAX - 1)
 402
 403 /* Flower classifier */
 404
 405 enum {
 406         TCA_FLOWER_UNSPEC,
 407         TCA_FLOWER_CLASSID,
 408         TCA_FLOWER_INDEV,
 409         TCA_FLOWER_ACT,
 410         TCA_FLOWER_KEY_ETH_DST,         /* ETH_ALEN */
 411         TCA_FLOWER_KEY_ETH_DST_MASK,    /* ETH_ALEN */
 412         TCA_FLOWER_KEY_ETH_SRC,         /* ETH_ALEN */
 413         TCA_FLOWER_KEY_ETH_SRC_MASK,    /* ETH_ALEN */
 414         TCA_FLOWER_KEY_ETH_TYPE,        /* be16 */
 415         TCA_FLOWER_KEY_IP_PROTO,        /* u8 */
 416         TCA_FLOWER_KEY_IPV4_SRC,        /* be32 */
 417         TCA_FLOWER_KEY_IPV4_SRC_MASK,   /* be32 */
 418         TCA_FLOWER_KEY_IPV4_DST,        /* be32 */
 419         TCA_FLOWER_KEY_IPV4_DST_MASK,   /* be32 */
 420         TCA_FLOWER_KEY_IPV6_SRC,        /* struct in6_addr */
 421         TCA_FLOWER_KEY_IPV6_SRC_MASK,   /* struct in6_addr */
 422         TCA_FLOWER_KEY_IPV6_DST,        /* struct in6_addr */
 423         TCA_FLOWER_KEY_IPV6_DST_MASK,   /* struct in6_addr */
 424         TCA_FLOWER_KEY_TCP_SRC,         /* be16 */
 425         TCA_FLOWER_KEY_TCP_DST,         /* be16 */
 426         TCA_FLOWER_KEY_UDP_SRC,         /* be16 */
 427         TCA_FLOWER_KEY_UDP_DST,         /* be16 */
 428
 429         TCA_FLOWER_FLAGS,
 430         __TCA_FLOWER_MAX,
 431 };
 432
 433 #define TCA_FLOWER_MAX (__TCA_FLOWER_MAX - 1)
 434
 435 /* Extended Matches */
 436
 437 struct tcf_ematch_tree_hdr {
 438         __u16           nmatches;
 439         __u16           progid;
 440 };
 441
 442 enum {
 443         TCA_EMATCH_TREE_UNSPEC,
 444         TCA_EMATCH_TREE_HDR,
 445         TCA_EMATCH_TREE_LIST,
 446         __TCA_EMATCH_TREE_MAX
 447 };
 448 #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
 449
 450 struct tcf_ematch_hdr {
 451         __u16           matchid;
 452         __u16           kind;
 453         __u16           flags;
 454         __u16           pad; /* currently unused */
 455 };
 456
 457 /*  0                   1
 458  *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
 459  * +-----------------------+-+-+---+
 460  * |         Unused        |S|I| R |
 461  * +-----------------------+-+-+---+
 462  *
 463  * R(2) ::= relation to next ematch
 464  *          where: 0 0 END (last ematch)
 465  *                 0 1 AND
 466  *                 1 0 OR
 467  *                 1 1 Unused (invalid)
 468  * I(1) ::= invert result
 469  * S(1) ::= simple payload
 470  */
 471 #define TCF_EM_REL_END  0
 472 #define TCF_EM_REL_AND  (1<<0)
 473 #define TCF_EM_REL_OR   (1<<1)
 474 #define TCF_EM_INVERT   (1<<2)
 475 #define TCF_EM_SIMPLE   (1<<3)
 476
 477 #define TCF_EM_REL_MASK 3
 478 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
 479
 480 enum {
 481         TCF_LAYER_LINK,
 482         TCF_LAYER_NETWORK,
 483         TCF_LAYER_TRANSPORT,
 484         __TCF_LAYER_MAX
 485 };
 486 #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
 487
 488 /* Ematch type assignments
 489  *   1..32767           Reserved for ematches inside kernel tree
 490  *   32768..65535       Free to use, not reliable
 491  */
 492 #define TCF_EM_CONTAINER        0
 493 #define TCF_EM_CMP              1
 494 #define TCF_EM_NBYTE            2
 495 #define TCF_EM_U32              3
 496 #define TCF_EM_META             4
 497 #define TCF_EM_TEXT             5
 498 #define TCF_EM_VLAN             6
 499 #define TCF_EM_CANID            7
 500 #define TCF_EM_IPSET            8
 501 #define TCF_EM_MAX              8
 502
 503 enum {
 504         TCF_EM_PROG_TC
 505 };
 506
 507 enum {
 508         TCF_EM_OPND_EQ,
 509         TCF_EM_OPND_GT,
 510         TCF_EM_OPND_LT
 511 };
 512
 513 #endif