• David Ahern's avatar
    rtnetlink: Update rtnl_dump_ifinfo for strict data checking · 905cf0ab
    David Ahern authored
    Update rtnl_dump_ifinfo for strict data checking. If the flag is set,
    the dump request is expected to have an ifinfomsg struct as the header
    potentially followed by one or more attributes. Any data passed in the
    header or as an attribute is taken as a request to influence the data
    returned. Only values supported by the dump handler are allowed to be
    non-0 or set in the request. At the moment only the IFA_TARGET_NETNSID,
    IFLA_EXT_MASK, IFLA_MASTER, and IFLA_LINKINFO attributes are supported.
    
    Existing code does not fail the dump if nlmsg_parse fails. That behavior
    is kept for non-strict checking.
    Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
    Acked-by: default avatarChristian Brauner <christian@brauner.io>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    905cf0ab
rtnetlink.c 118 KB