tc_em_meta.h

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#ifndef __LINUX_TC_EM_META_H
#define __LINUX_TC_EM_META_H

#include <linux/types.h>
#include <linux/pkt_cls.h>

enum {
    TCA_EM_META_UNSPEC,
    TCA_EM_META_HDR,
    TCA_EM_META_LVALUE,
    TCA_EM_META_RVALUE,
    __TCA_EM_META_MAX
};
#define TCA_EM_META_MAX (__TCA_EM_META_MAX - 1)

struct tcf_meta_val {
    __u16           kind;
    __u8            shift;
    __u8            op;
};

#define TCF_META_TYPE_MASK  (0xf << 12)
#define TCF_META_TYPE(kind) (((kind) & TCF_META_TYPE_MASK) >> 12)
#define TCF_META_ID_MASK    0x7ff
#define TCF_META_ID(kind)   ((kind) & TCF_META_ID_MASK)

enum {
    TCF_META_TYPE_VAR,
    TCF_META_TYPE_INT,
    __TCF_META_TYPE_MAX
};
#define TCF_META_TYPE_MAX (__TCF_META_TYPE_MAX - 1)

enum {
    TCF_META_ID_VALUE,
    TCF_META_ID_RANDOM,
    TCF_META_ID_LOADAVG_0,
    TCF_META_ID_LOADAVG_1,
    TCF_META_ID_LOADAVG_2,
    TCF_META_ID_DEV,
    TCF_META_ID_PRIORITY,
    TCF_META_ID_PROTOCOL,
    TCF_META_ID_PKTTYPE,
    TCF_META_ID_PKTLEN,
    TCF_META_ID_DATALEN,
    TCF_META_ID_MACLEN,
    TCF_META_ID_NFMARK,
    TCF_META_ID_TCINDEX,
    TCF_META_ID_RTCLASSID,
    TCF_META_ID_RTIIF,
    TCF_META_ID_SK_FAMILY,
    TCF_META_ID_SK_STATE,
    TCF_META_ID_SK_REUSE,
    TCF_META_ID_SK_BOUND_IF,
    TCF_META_ID_SK_REFCNT,
    TCF_META_ID_SK_SHUTDOWN,
    TCF_META_ID_SK_PROTO,
    TCF_META_ID_SK_TYPE,
    TCF_META_ID_SK_RCVBUF,
    TCF_META_ID_SK_RMEM_ALLOC,
    TCF_META_ID_SK_WMEM_ALLOC,
    TCF_META_ID_SK_OMEM_ALLOC,
    TCF_META_ID_SK_WMEM_QUEUED,
    TCF_META_ID_SK_RCV_QLEN,
    TCF_META_ID_SK_SND_QLEN,
    TCF_META_ID_SK_ERR_QLEN,
    TCF_META_ID_SK_FORWARD_ALLOCS,
    TCF_META_ID_SK_SNDBUF,
    TCF_META_ID_SK_ALLOCS,
    __TCF_META_ID_SK_ROUTE_CAPS,    /* unimplemented but in ABI already */
    TCF_META_ID_SK_HASH,
    TCF_META_ID_SK_LINGERTIME,
    TCF_META_ID_SK_ACK_BACKLOG,
    TCF_META_ID_SK_MAX_ACK_BACKLOG,
    TCF_META_ID_SK_PRIO,
    TCF_META_ID_SK_RCVLOWAT,
    TCF_META_ID_SK_RCVTIMEO,
    TCF_META_ID_SK_SNDTIMEO,
    TCF_META_ID_SK_SENDMSG_OFF,
    TCF_META_ID_SK_WRITE_PENDING,
    TCF_META_ID_VLAN_TAG,
    TCF_META_ID_RXHASH,
    __TCF_META_ID_MAX
};
#define TCF_META_ID_MAX (__TCF_META_ID_MAX - 1)

struct tcf_meta_hdr {
    struct tcf_meta_val left;
    struct tcf_meta_val right;
};

#endif