root/include/uapi/linux/netlink_diag.h

#ifndef __NETLINK_DIAG_H__
#define __NETLINK_DIAG_H__

#include <linux/types.h>

struct netlink_diag_req {
        __u8    sdiag_family;
        __u8    sdiag_protocol;
        __u16   pad;
        __u32   ndiag_ino;
        __u32   ndiag_show;
        __u32   ndiag_cookie[2];
};

struct netlink_diag_msg {
        __u8    ndiag_family;
        __u8    ndiag_type;
        __u8    ndiag_protocol;
        __u8    ndiag_state;

        __u32   ndiag_portid;
        __u32   ndiag_dst_portid;
        __u32   ndiag_dst_group;
        __u32   ndiag_ino;
        __u32   ndiag_cookie[2];
};

struct netlink_diag_ring {
        __u32   ndr_block_size;
        __u32   ndr_block_nr;
        __u32   ndr_frame_size;
        __u32   ndr_frame_nr;
};

enum {
        /* NETLINK_DIAG_NONE, standard nl API requires this attribute!  */
        NETLINK_DIAG_MEMINFO,
        NETLINK_DIAG_GROUPS,
        NETLINK_DIAG_RX_RING,
        NETLINK_DIAG_TX_RING,

        __NETLINK_DIAG_MAX,
};

#define NETLINK_DIAG_MAX (__NETLINK_DIAG_MAX - 1)

#define NDIAG_PROTO_ALL         ((__u8) ~0)

#define NDIAG_SHOW_MEMINFO      0x00000001 /* show memory info of a socket */
#define NDIAG_SHOW_GROUPS       0x00000002 /* show groups of a netlink socket */
#define NDIAG_SHOW_RING_CFG     0x00000004 /* show ring configuration */

#endif