1 files changed, 426 insertions, 0 deletions

diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h
new file mode 100644
index 000000000000..d2aa214d6803
--- /dev/null
+++ b/include/linux/pkt_cls.h
@@ -0,0 +1,426 @@
+#ifndef __LINUX_PKT_CLS_H
+#define __LINUX_PKT_CLS_H
+
+#include <linux/pkt_sched.h>
+
+/* I think i could have done better macros ; for now this is stolen from
+ * some arch/mips code - jhs
+*/
+#define _TC_MAKE32(x) ((x))
+
+#define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
+#define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
+#define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
+#define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
+
+/* verdict bit breakdown 
+ *
+bit 0: when set -> this packet has been munged already
+
+bit 1: when set -> It is ok to munge this packet
+
+bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
+assume loop
+
+bit 6,7: Where this packet was last seen 
+0: Above the transmit example at the socket level
+1: on the Ingress
+2: on the Egress
+
+bit 8: when set --> Request not to classify on ingress. 
+
+bits 9,10,11: redirect counter -  redirect TTL. Loop avoidance
+
+ *
+ * */
+
+#define TC_MUNGED          _TC_MAKEMASK1(0)
+#define SET_TC_MUNGED(v)   ( TC_MUNGED | (v & ~TC_MUNGED))
+#define CLR_TC_MUNGED(v)   ( v & ~TC_MUNGED)
+
+#define TC_OK2MUNGE        _TC_MAKEMASK1(1)
+#define SET_TC_OK2MUNGE(v)   ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
+#define CLR_TC_OK2MUNGE(v)   ( v & ~TC_OK2MUNGE)
+
+#define S_TC_VERD          _TC_MAKE32(2)
+#define M_TC_VERD          _TC_MAKEMASK(4,S_TC_VERD)
+#define G_TC_VERD(x)       _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
+#define V_TC_VERD(x)       _TC_MAKEVALUE(x,S_TC_VERD)
+#define SET_TC_VERD(v,n)   ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
+
+#define S_TC_FROM          _TC_MAKE32(6)
+#define M_TC_FROM          _TC_MAKEMASK(2,S_TC_FROM)
+#define G_TC_FROM(x)       _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
+#define V_TC_FROM(x)       _TC_MAKEVALUE(x,S_TC_FROM)
+#define SET_TC_FROM(v,n)   ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
+#define AT_STACK        0x0
+#define AT_INGRESS      0x1
+#define AT_EGRESS       0x2
+
+#define TC_NCLS          _TC_MAKEMASK1(8)
+#define SET_TC_NCLS(v)   ( TC_NCLS | (v & ~TC_NCLS))
+#define CLR_TC_NCLS(v)   ( v & ~TC_NCLS)
+
+#define S_TC_RTTL          _TC_MAKE32(9)
+#define M_TC_RTTL          _TC_MAKEMASK(3,S_TC_RTTL)
+#define G_TC_RTTL(x)       _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
+#define V_TC_RTTL(x)       _TC_MAKEVALUE(x,S_TC_RTTL)
+#define SET_TC_RTTL(v,n)   ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
+
+#define S_TC_AT          _TC_MAKE32(12)
+#define M_TC_AT          _TC_MAKEMASK(2,S_TC_AT)
+#define G_TC_AT(x)       _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
+#define V_TC_AT(x)       _TC_MAKEVALUE(x,S_TC_AT)
+#define SET_TC_AT(v,n)   ((V_TC_AT(n)) | (v & ~M_TC_AT))
+
+/* Action attributes */
+enum
+{
+        TCA_ACT_UNSPEC,
+        TCA_ACT_KIND,
+        TCA_ACT_OPTIONS,
+        TCA_ACT_INDEX,
+        TCA_ACT_STATS,
+        __TCA_ACT_MAX
+};
+
+#define TCA_ACT_MAX __TCA_ACT_MAX
+#define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
+#define TCA_ACT_MAX_PRIO 32
+#define TCA_ACT_BIND    1
+#define TCA_ACT_NOBIND  0
+#define TCA_ACT_UNBIND  1
+#define TCA_ACT_NOUNBIND        0
+#define TCA_ACT_REPLACE         1
+#define TCA_ACT_NOREPLACE       0
+#define MAX_REC_LOOP 4
+#define MAX_RED_LOOP 4
+
+#define TC_ACT_UNSPEC   (-1)
+#define TC_ACT_OK               0
+#define TC_ACT_RECLASSIFY       1
+#define TC_ACT_SHOT             2
+#define TC_ACT_PIPE             3
+#define TC_ACT_STOLEN           4
+#define TC_ACT_QUEUED           5
+#define TC_ACT_REPEAT           6
+#define TC_ACT_JUMP             0x10000000
+
+/* Action type identifiers*/
+enum
+{
+        TCA_ID_UNSPEC=0,
+        TCA_ID_POLICE=1,
+        /* other actions go here */
+        __TCA_ID_MAX=255
+};
+
+#define TCA_ID_MAX __TCA_ID_MAX
+
+struct tc_police
+{
+        __u32                   index;
+        int                     action;
+#define TC_POLICE_UNSPEC        TC_ACT_UNSPEC
+#define TC_POLICE_OK            TC_ACT_OK
+#define TC_POLICE_RECLASSIFY    TC_ACT_RECLASSIFY
+#define TC_POLICE_SHOT          TC_ACT_SHOT
+#define TC_POLICE_PIPE          TC_ACT_PIPE
+
+        __u32                   limit;
+        __u32                   burst;
+        __u32                   mtu;
+        struct tc_ratespec      rate;
+        struct tc_ratespec      peakrate;
+        int                     refcnt;
+        int                     bindcnt;
+        __u32                   capab;
+};
+
+struct tcf_t
+{
+        __u64   install;
+        __u64   lastuse;
+        __u64   expires;
+};
+
+struct tc_cnt
+{
+        int                   refcnt; 
+        int                   bindcnt;
+};
+
+#define tc_gen \
+        __u32                 index; \
+        __u32                 capab; \
+        int                   action; \
+        int                   refcnt; \
+        int                   bindcnt
+
+enum
+{
+        TCA_POLICE_UNSPEC,
+        TCA_POLICE_TBF,
+        TCA_POLICE_RATE,
+        TCA_POLICE_PEAKRATE,
+        TCA_POLICE_AVRATE,
+        TCA_POLICE_RESULT,
+        __TCA_POLICE_MAX
+#define TCA_POLICE_RESULT TCA_POLICE_RESULT
+};
+
+#define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
+
+/* U32 filters */
+
+#define TC_U32_HTID(h) ((h)&0xFFF00000)
+#define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
+#define TC_U32_HASH(h) (((h)>>12)&0xFF)
+#define TC_U32_NODE(h) ((h)&0xFFF)
+#define TC_U32_KEY(h) ((h)&0xFFFFF)
+#define TC_U32_UNSPEC   0
+#define TC_U32_ROOT     (0xFFF00000)
+
+enum
+{
+        TCA_U32_UNSPEC,
+        TCA_U32_CLASSID,
+        TCA_U32_HASH,
+        TCA_U32_LINK,
+        TCA_U32_DIVISOR,
+        TCA_U32_SEL,
+        TCA_U32_POLICE,
+        TCA_U32_ACT,   
+        TCA_U32_INDEV,
+        TCA_U32_PCNT,
+        TCA_U32_MARK,
+        __TCA_U32_MAX
+};
+
+#define TCA_U32_MAX (__TCA_U32_MAX - 1)
+
+struct tc_u32_key
+{
+        __u32           mask;
+        __u32           val;
+        int             off;
+        int             offmask;
+};
+
+struct tc_u32_sel
+{
+        unsigned char           flags;
+        unsigned char           offshift;
+        unsigned char           nkeys;
+
+        __u16                   offmask;
+        __u16                   off;
+        short                   offoff;
+
+        short                   hoff;
+        __u32                   hmask;
+        struct tc_u32_key       keys[0];
+};
+
+struct tc_u32_mark
+{
+        __u32           val;
+        __u32           mask;
+        __u32           success;
+};
+
+struct tc_u32_pcnt
+{
+        __u64 rcnt;
+        __u64 rhit;
+        __u64 kcnts[0];
+};
+
+/* Flags */
+
+#define TC_U32_TERMINAL         1
+#define TC_U32_OFFSET           2
+#define TC_U32_VAROFFSET        4
+#define TC_U32_EAT              8
+
+#define TC_U32_MAXDEPTH 8
+
+
+/* RSVP filter */
+
+enum
+{
+        TCA_RSVP_UNSPEC,
+        TCA_RSVP_CLASSID,
+        TCA_RSVP_DST,
+        TCA_RSVP_SRC,
+        TCA_RSVP_PINFO,
+        TCA_RSVP_POLICE,
+        TCA_RSVP_ACT,
+        __TCA_RSVP_MAX
+};
+
+#define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
+
+struct tc_rsvp_gpi
+{
+        __u32   key;
+        __u32   mask;
+        int     offset;
+};
+
+struct tc_rsvp_pinfo
+{
+        struct tc_rsvp_gpi dpi;
+        struct tc_rsvp_gpi spi;
+        __u8    protocol;
+        __u8    tunnelid;
+        __u8    tunnelhdr;
+};
+
+/* ROUTE filter */
+
+enum
+{
+        TCA_ROUTE4_UNSPEC,
+        TCA_ROUTE4_CLASSID,
+        TCA_ROUTE4_TO,
+        TCA_ROUTE4_FROM,
+        TCA_ROUTE4_IIF,
+        TCA_ROUTE4_POLICE,
+        TCA_ROUTE4_ACT,
+        __TCA_ROUTE4_MAX
+};
+
+#define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
+
+
+/* FW filter */
+
+enum
+{
+        TCA_FW_UNSPEC,
+        TCA_FW_CLASSID,
+        TCA_FW_POLICE,
+        TCA_FW_INDEV, /*  used by CONFIG_NET_CLS_IND */
+        TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
+        __TCA_FW_MAX
+};
+
+#define TCA_FW_MAX (__TCA_FW_MAX - 1)
+
+/* TC index filter */
+
+enum
+{
+        TCA_TCINDEX_UNSPEC,
+        TCA_TCINDEX_HASH,
+        TCA_TCINDEX_MASK,
+        TCA_TCINDEX_SHIFT,
+        TCA_TCINDEX_FALL_THROUGH,
+        TCA_TCINDEX_CLASSID,
+        TCA_TCINDEX_POLICE,
+        TCA_TCINDEX_ACT,
+        __TCA_TCINDEX_MAX
+};
+
+#define TCA_TCINDEX_MAX     (__TCA_TCINDEX_MAX - 1)
+
+/* Basic filter */
+
+enum
+{
+        TCA_BASIC_UNSPEC,
+        TCA_BASIC_CLASSID,
+        TCA_BASIC_EMATCHES,
+        TCA_BASIC_ACT,
+        TCA_BASIC_POLICE,
+        __TCA_BASIC_MAX
+};
+
+#define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
+
+/* Extended Matches */
+
+struct tcf_ematch_tree_hdr
+{
+        __u16           nmatches;
+        __u16           progid;
+};
+
+enum
+{
+        TCA_EMATCH_TREE_UNSPEC,
+        TCA_EMATCH_TREE_HDR,
+        TCA_EMATCH_TREE_LIST,
+        __TCA_EMATCH_TREE_MAX
+};
+#define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
+
+struct tcf_ematch_hdr
+{
+        __u16           matchid;
+        __u16           kind;
+        __u16           flags;
+        __u16           pad; /* currently unused */
+};
+
+/*  0                   1
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 
+ * +-----------------------+-+-+---+
+ * |         Unused        |S|I| R |
+ * +-----------------------+-+-+---+
+ *
+ * R(2) ::= relation to next ematch
+ *          where: 0 0 END (last ematch)
+ *                 0 1 AND
+ *                 1 0 OR
+ *                 1 1 Unused (invalid)
+ * I(1) ::= invert result
+ * S(1) ::= simple payload
+ */
+#define TCF_EM_REL_END  0
+#define TCF_EM_REL_AND  (1<<0)
+#define TCF_EM_REL_OR   (1<<1)
+#define TCF_EM_INVERT   (1<<2)
+#define TCF_EM_SIMPLE   (1<<3)
+
+#define TCF_EM_REL_MASK 3
+#define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
+
+enum
+{
+        TCF_LAYER_LINK,
+        TCF_LAYER_NETWORK,
+        TCF_LAYER_TRANSPORT,
+        __TCF_LAYER_MAX
+};
+#define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
+
+/* Ematch type assignments
+ *   1..32767           Reserved for ematches inside kernel tree
+ *   32768..65535       Free to use, not reliable
+ */
+enum
+{
+        TCF_EM_CONTAINER,
+        TCF_EM_CMP,
+        TCF_EM_NBYTE,
+        TCF_EM_U32,
+        TCF_EM_META,
+        __TCF_EM_MAX
+};
+
+enum
+{
+        TCF_EM_PROG_TC
+};
+
+enum
+{
+        TCF_EM_OPND_EQ,
+        TCF_EM_OPND_GT,
+        TCF_EM_OPND_LT
+};
+
+#endif