• Thomas Graf's avatar
    [NETLINK]: Neighbour table configuration and statistics via rtnetlink · c7fb64db
    Thomas Graf authored
    To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
    NLM_F_DUMP flag set. Every neighbour table configuration is
    spread over multiple messages to avoid running into message
    size limits on systems with many interfaces. The first message
    in the sequence transports all not device specific data such as
    statistics, configuration, and the default parameter set.
    This message is followed by 0..n messages carrying device
    specific parameter sets.
    Although the ordering should be sufficient, NDTA_NAME can be
    used to identify sequences. The initial message can be identified
    by checking for NDTA_CONFIG. The device specific messages do
    not contain this TLV but have NDTPA_IFINDEX set to the
    corresponding interface index.
    To change neighbour table attributes, send RTM_SETNEIGHTBL
    with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
    NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
    otherwise. Device specific parameter sets can be changed by
    setting NDTPA_IFINDEX to the interface index of the corresponding
    Signed-off-by: default avatarThomas Graf <tgraf@suug.ch>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
rtnetlink.c 17.1 KB