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