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    • James Chapman's avatar
      l2tp: Add L2TPv3 IP encapsulation (no UDP) support · 0d76751f
      James Chapman authored
      This patch adds a new L2TPIP socket family and modifies the core to
      handle the case where there is no UDP header in the L2TP
      packet. L2TP/IP uses IP protocol 115. Since L2TP/UDP and L2TP/IP
      packets differ in layout, the datapath packet handling code needs
      changes too. Userspace uses an L2TPIP socket instead of a UDP socket
      when IP encapsulation is required.
      
      We can't use raw sockets for this because the semantics of raw sockets
      don't lend themselves to the socket-per-tunnel model - we need to
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0d76751f