linux內核 網絡子系統

1.struct rtnl_link_stats64/獲得網卡的狀態，比如收到的數據包個數，錯誤個數嗎，丟包個數等/

/* The main device statistics structure */
struct rtnl_link_stats64 {
    **__u64 rx_packets;     /* total packets received   */
    __u64   tx_packets;     /* total packets transmitted    */
    __u64   rx_bytes;       /* total bytes received     */
    __u64   tx_bytes;       /* total bytes transmitted  */**
    __u64   rx_errors;      /* bad packets received     */
    __u64   tx_errors;      /* packet transmit problems */
    __u64   rx_dropped;     /* no space in linux buffers    */
    __u64   tx_dropped;     /* no space available in linux  */
    __u64   multicast;      /* multicast packets received   */
    __u64   collisions;

    /* detailed rx_errors: */
    __u64   rx_length_errors;
    __u64   rx_over_errors;     /* receiver ring buff overflow  */
    __u64   rx_crc_errors;      /* recved pkt with crc error    */
    __u64   rx_frame_errors;    /* recv'd frame alignment error */
    __u64   rx_fifo_errors;     /* recv'r fifo overrun      */
    __u64   rx_missed_errors;   /* receiver missed packet   */

    /* detailed tx_errors */
    __u64   tx_aborted_errors;
    __u64   tx_carrier_errors;
    __u64   tx_fifo_errors;
    __u64   tx_heartbeat_errors;
    __u64   tx_window_errors;

    /* for cslip etc */
    __u64   rx_compressed;
    __u64   tx_compressed;

    __u64   rx_nohandler;       /* dropped, no handler found    */
};