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         __u64   firstuse;
 128 };
 129
 130 struct tc_cnt {
 131         int                   refcnt;
 132         int                   bindcnt;
 133 };
 134
 135 #define tc_gen \
 136         __u32                 index; \
 137         __u32                 capab; \
 138         int                   action; \
 139         int                   refcnt; \
 140         int                   bindcnt
 141
 142 enum {
 143         TCA_POLICE_UNSPEC,
 144         TCA_POLICE_TBF,
 145         TCA_POLICE_RATE,
 146         TCA_POLICE_PEAKRATE,
 147         TCA_POLICE_AVRATE,
 148         TCA_POLICE_RESULT,
 149         TCA_POLICE_TM,
 150         TCA_POLICE_PAD,
 151         __TCA_POLICE_MAX
 152 #define TCA_POLICE_RESULT TCA_POLICE_RESULT
 153 };
 154
 155 #define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
 156
 157 /* tca flags definitions */
 158 #define TCA_CLS_FLAGS_SKIP_HW   (1 << 0)
 159 #define TCA_CLS_FLAGS_SKIP_SW   (1 << 1)
 160
 161 /* U32 filters */
 162
 163 #define TC_U32_HTID(h) ((h)&0xFFF00000)
 164 #define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
 165 #define TC_U32_HASH(h) (((h)>>12)&0xFF)
 166 #define TC_U32_NODE(h) ((h)&0xFFF)
 167 #define TC_U32_KEY(h) ((h)&0xFFFFF)
 168 #define TC_U32_UNSPEC   0
 169 #define TC_U32_ROOT     (0xFFF00000)
 170
 171 enum {
 172         TCA_U32_UNSPEC,
 173         TCA_U32_CLASSID,
 174         TCA_U32_HASH,
 175         TCA_U32_LINK,
 176         TCA_U32_DIVISOR,
 177         TCA_U32_SEL,
 178         TCA_U32_POLICE,
 179         TCA_U32_ACT,
 180         TCA_U32_INDEV,
 181         TCA_U32_PCNT,
 182         TCA_U32_MARK,
 183         TCA_U32_FLAGS,
 184         TCA_U32_PAD,
 185         __TCA_U32_MAX
 186 };
 187
 188 #define TCA_U32_MAX (__TCA_U32_MAX - 1)
 189
 190 struct tc_u32_key {
 191         __be32          mask;
 192         __be32          val;
 193         int             off;
 194         int             offmask;
 195 };
 196
 197 struct tc_u32_sel {
 198         unsigned char           flags;
 199         unsigned char           offshift;
 200         unsigned char           nkeys;
 201
 202         __be16                  offmask;
 203         __u16                   off;
 204         short                   offoff;
 205
 206         short                   hoff;
 207         __be32                  hmask;
 208         struct tc_u32_key       keys[0];
 209 };
 210
 211 struct tc_u32_mark {
 212         __u32           val;
 213         __u32           mask;
 214         __u32           success;
 215 };
 216
 217 struct tc_u32_pcnt {
 218         __u64 rcnt;
 219         __u64 rhit;
 220         __u64 kcnts[0];
 221 };
 222
 223 /* Flags */
 224
 225 #define TC_U32_TERMINAL         1
 226 #define TC_U32_OFFSET           2
 227 #define TC_U32_VAROFFSET        4
 228 #define TC_U32_EAT              8
 229
 230 #define TC_U32_MAXDEPTH 8
 231
 232
 233 /* RSVP filter */
 234
 235 enum {
 236         TCA_RSVP_UNSPEC,
 237         TCA_RSVP_CLASSID,
 238         TCA_RSVP_DST,
 239         TCA_RSVP_SRC,
 240         TCA_RSVP_PINFO,
 241         TCA_RSVP_POLICE,
 242         TCA_RSVP_ACT,
 243         __TCA_RSVP_MAX
 244 };
 245
 246 #define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
 247
 248 struct tc_rsvp_gpi {
 249         __u32   key;
 250         __u32   mask;
 251         int     offset;
 252 };
 253
 254 struct tc_rsvp_pinfo {
 255         struct tc_rsvp_gpi dpi;
 256         struct tc_rsvp_gpi spi;
 257         __u8    protocol;
 258         __u8    tunnelid;
 259         __u8    tunnelhdr;
 260         __u8    pad;
 261 };
 262
 263 /* ROUTE filter */
 264
 265 enum {
 266         TCA_ROUTE4_UNSPEC,
 267         TCA_ROUTE4_CLASSID,
 268         TCA_ROUTE4_TO,
 269         TCA_ROUTE4_FROM,
 270         TCA_ROUTE4_IIF,
 271         TCA_ROUTE4_POLICE,
 272         TCA_ROUTE4_ACT,
 273         __TCA_ROUTE4_MAX
 274 };
 275
 276 #define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
 277
 278
 279 /* FW filter */
 280
 281 enum {
 282         TCA_FW_UNSPEC,
 283         TCA_FW_CLASSID,
 284         TCA_FW_POLICE,
 285         TCA_FW_INDEV, /*  used by CONFIG_NET_CLS_IND */
 286         TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
 287         TCA_FW_MASK,
 288         __TCA_FW_MAX
 289 };
 290
 291 #define TCA_FW_MAX (__TCA_FW_MAX - 1)
 292
 293 /* TC index filter */
 294
 295 enum {
 296         TCA_TCINDEX_UNSPEC,
 297         TCA_TCINDEX_HASH,
 298         TCA_TCINDEX_MASK,
 299         TCA_TCINDEX_SHIFT,
 300         TCA_TCINDEX_FALL_THROUGH,
 301         TCA_TCINDEX_CLASSID,
 302         TCA_TCINDEX_POLICE,
 303         TCA_TCINDEX_ACT,
 304         __TCA_TCINDEX_MAX
 305 };
 306
 307 #define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
 308
 309 /* Flow filter */
 310
 311 enum {
 312         FLOW_KEY_SRC,
 313         FLOW_KEY_DST,
 314         FLOW_KEY_PROTO,
 315         FLOW_KEY_PROTO_SRC,
 316         FLOW_KEY_PROTO_DST,
 317         FLOW_KEY_IIF,
 318         FLOW_KEY_PRIORITY,
 319         FLOW_KEY_MARK,
 320         FLOW_KEY_NFCT,
 321         FLOW_KEY_NFCT_SRC,
 322         FLOW_KEY_NFCT_DST,
 323         FLOW_KEY_NFCT_PROTO_SRC,
 324         FLOW_KEY_NFCT_PROTO_DST,
 325         FLOW_KEY_RTCLASSID,
 326         FLOW_KEY_SKUID,
 327         FLOW_KEY_SKGID,
 328         FLOW_KEY_VLAN_TAG,
 329         FLOW_KEY_RXHASH,
 330         __FLOW_KEY_MAX,
 331 };
 332
 333 #define FLOW_KEY_MAX    (__FLOW_KEY_MAX - 1)
 334
 335 enum {
 336         FLOW_MODE_MAP,
 337         FLOW_MODE_HASH,
 338 };
 339
 340 enum {
 341         TCA_FLOW_UNSPEC,
 342         TCA_FLOW_KEYS,
 343         TCA_FLOW_MODE,
 344         TCA_FLOW_BASECLASS,
 345         TCA_FLOW_RSHIFT,
 346         TCA_FLOW_ADDEND,
 347         TCA_FLOW_MASK,
 348         TCA_FLOW_XOR,
 349         TCA_FLOW_DIVISOR,
 350         TCA_FLOW_ACT,
 351         TCA_FLOW_POLICE,
 352         TCA_FLOW_EMATCHES,
 353         TCA_FLOW_PERTURB,
 354         __TCA_FLOW_MAX
 355 };
 356
 357 #define TCA_FLOW_MAX    (__TCA_FLOW_MAX - 1)
 358
 359 /* Basic filter */
 360
 361 enum {
 362         TCA_BASIC_UNSPEC,
 363         TCA_BASIC_CLASSID,
 364         TCA_BASIC_EMATCHES,
 365         TCA_BASIC_ACT,
 366         TCA_BASIC_POLICE,
 367         __TCA_BASIC_MAX
 368 };
 369
 370 #define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
 371
 372
 373 /* Cgroup classifier */
 374
 375 enum {
 376         TCA_CGROUP_UNSPEC,
 377         TCA_CGROUP_ACT,
 378         TCA_CGROUP_POLICE,
 379         TCA_CGROUP_EMATCHES,
 380         __TCA_CGROUP_MAX,
 381 };
 382
 383 #define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1)
 384
 385 /* BPF classifier */
 386
 387 #define TCA_BPF_FLAG_ACT_DIRECT         (1 << 0)
 388
 389 enum {
 390         TCA_BPF_UNSPEC,
 391         TCA_BPF_ACT,
 392         TCA_BPF_POLICE,
 393         TCA_BPF_CLASSID,
 394         TCA_BPF_OPS_LEN,
 395         TCA_BPF_OPS,
 396         TCA_BPF_FD,
 397         TCA_BPF_NAME,
 398         TCA_BPF_FLAGS,
 399         __TCA_BPF_MAX,
 400 };
 401
 402 #define TCA_BPF_MAX (__TCA_BPF_MAX - 1)
 403
 404 /* Flower classifier */
 405
 406 enum {
 407         TCA_FLOWER_UNSPEC,
 408         TCA_FLOWER_CLASSID,
 409         TCA_FLOWER_INDEV,
 410         TCA_FLOWER_ACT,
 411         TCA_FLOWER_KEY_ETH_DST,         /* ETH_ALEN */
 412         TCA_FLOWER_KEY_ETH_DST_MASK,    /* ETH_ALEN */
 413         TCA_FLOWER_KEY_ETH_SRC,         /* ETH_ALEN */
 414         TCA_FLOWER_KEY_ETH_SRC_MASK,    /* ETH_ALEN */
 415         TCA_FLOWER_KEY_ETH_TYPE,        /* be16 */
 416         TCA_FLOWER_KEY_IP_PROTO,        /* u8 */
 417         TCA_FLOWER_KEY_IPV4_SRC,        /* be32 */
 418         TCA_FLOWER_KEY_IPV4_SRC_MASK,   /* be32 */
 419         TCA_FLOWER_KEY_IPV4_DST,        /* be32 */
 420         TCA_FLOWER_KEY_IPV4_DST_MASK,   /* be32 */
 421         TCA_FLOWER_KEY_IPV6_SRC,        /* struct in6_addr */
 422         TCA_FLOWER_KEY_IPV6_SRC_MASK,   /* struct in6_addr */
 423         TCA_FLOWER_KEY_IPV6_DST,        /* struct in6_addr */
 424         TCA_FLOWER_KEY_IPV6_DST_MASK,   /* struct in6_addr */
 425         TCA_FLOWER_KEY_TCP_SRC,         /* be16 */
 426         TCA_FLOWER_KEY_TCP_DST,         /* be16 */
 427         TCA_FLOWER_KEY_UDP_SRC,         /* be16 */
 428         TCA_FLOWER_KEY_UDP_DST,         /* be16 */
 429
 430         TCA_FLOWER_FLAGS,
 431         __TCA_FLOWER_MAX,
 432 };
 433
 434 #define TCA_FLOWER_MAX (__TCA_FLOWER_MAX - 1)
 435
 436 /* Match-all classifier */
 437
 438 enum {
 439         TCA_MATCHALL_UNSPEC,
 440         TCA_MATCHALL_CLASSID,
 441         TCA_MATCHALL_ACT,
 442         TCA_MATCHALL_FLAGS,
 443         __TCA_MATCHALL_MAX,
 444 };
 445
 446 #define TCA_MATCHALL_MAX (__TCA_MATCHALL_MAX - 1)
 447
 448 /* Extended Matches */
 449
 450 struct tcf_ematch_tree_hdr {
 451         __u16           nmatches;
 452         __u16           progid;
 453 };
 454
 455 enum {
 456         TCA_EMATCH_TREE_UNSPEC,
 457         TCA_EMATCH_TREE_HDR,
 458         TCA_EMATCH_TREE_LIST,
 459         __TCA_EMATCH_TREE_MAX
 460 };
 461 #define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
 462
 463 struct tcf_ematch_hdr {
 464         __u16           matchid;
 465         __u16           kind;
 466         __u16           flags;
 467         __u16           pad; /* currently unused */
 468 };
 469
 470 /*  0                   1
 471  *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
 472  * +-----------------------+-+-+---+
 473  * |         Unused        |S|I| R |
 474  * +-----------------------+-+-+---+
 475  *
 476  * R(2) ::= relation to next ematch
 477  *          where: 0 0 END (last ematch)
 478  *                 0 1 AND
 479  *                 1 0 OR
 480  *                 1 1 Unused (invalid)
 481  * I(1) ::= invert result
 482  * S(1) ::= simple payload
 483  */
 484 #define TCF_EM_REL_END  0
 485 #define TCF_EM_REL_AND  (1<<0)
 486 #define TCF_EM_REL_OR   (1<<1)
 487 #define TCF_EM_INVERT   (1<<2)
 488 #define TCF_EM_SIMPLE   (1<<3)
 489
 490 #define TCF_EM_REL_MASK 3
 491 #define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
 492
 493 enum {
 494         TCF_LAYER_LINK,
 495         TCF_LAYER_NETWORK,
 496         TCF_LAYER_TRANSPORT,
 497         __TCF_LAYER_MAX
 498 };
 499 #define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
 500
 501 /* Ematch type assignments
 502  *   1..32767           Reserved for ematches inside kernel tree
 503  *   32768..65535       Free to use, not reliable
 504  */
 505 #define TCF_EM_CONTAINER        0
 506 #define TCF_EM_CMP              1
 507 #define TCF_EM_NBYTE            2
 508 #define TCF_EM_U32              3
 509 #define TCF_EM_META             4
 510 #define TCF_EM_TEXT             5
 511 #define TCF_EM_VLAN             6
 512 #define TCF_EM_CANID            7
 513 #define TCF_EM_IPSET            8
 514 #define TCF_EM_MAX              8
 515
 516 enum {
 517         TCF_EM_PROG_TC
 518 };
 519
 520 enum {
 521         TCF_EM_OPND_EQ,
 522         TCF_EM_OPND_GT,
 523         TCF_EM_OPND_LT
 524 };
 525
 526 #endif