1. 17 4月, 2008 24 次提交
  2. 16 4月, 2008 3 次提交
    • P
      [TUN]: Allow to register tun devices in namespace. · fc54c658
      Pavel Emelyanov 提交于
      This is basically means that a net is set for a new device, but
      actually also involves two more steps:
      
      1. mark the tun device as "local", i.e. do not allow for it to
         move across namespaces.
      
      This is done so, since tun device is most often associated to some
      file (and thus to some process) and moving the device alone is not
      valid while keeping the file and the process outside. The need in 
      ability to move a detached persistent device is to be investigated 
      later.
      
      2. get the tun device's net when tun becomes attached and put one
         when it becomes detached.
      
      This is needed to handle the case when a task owning the tun dies,
      but a files lives for some more time - in this case we must not
      allow for net to be freed, since its exit hook will spoil that file's
      private data by unregistering the tun from under tun_chr_close.
      Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fc54c658
    • P
      [TUN]: Make the tun_dev_list per-net. · d647a591
      Pavel Emelyanov 提交于
      Remove the static tun_dev_list and replace its occurrences in
      driver with per-net one.
      
      It is used in two places - in tun_set_iff and tun_cleanup. In 
      the first case it's legal to use current net_ns. In the cleanup
      call - move the loop, that unregisters all devices in net exit
      hook.
      Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d647a591
    • P
      [TUN]: Introduce the tun_net structure and init/exit net ops. · 79d17604
      Pavel Emelyanov 提交于
      This is the first step in making tuntap devices work in net 
      namespaces. The structure mentioned is pointed by generic
      net pointer with tun_net_id id, and tun driver fills one on 
      its load. It will contain only the tun devices list.
      
      So declare this structure and introduce net init and exit hooks.
      Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      79d17604
  3. 13 4月, 2008 3 次提交
  4. 12 4月, 2008 10 次提交