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    [NET]: Support multiple network namespaces with netlink · b4b51029
    Eric W. Biederman 提交于
    Each netlink socket will live in exactly one network namespace,
    this includes the controlling kernel sockets.
    
    This patch updates all of the existing netlink protocols
    to only support the initial network namespace.  Request
    by clients in other namespaces will get -ECONREFUSED.
    As they would if the kernel did not have the support for
    that netlink protocol compiled in.
    
    As each netlink protocol is updated to be multiple network
    namespace safe it can register multiple kernel sockets
    to acquire a presence in the rest of the network namespaces.
    
    The implementation in af_netlink is a simple filter implementation
    at hash table insertion and hash table look up time.
    Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    b4b51029
scsi_netlink.c 4.2 KB