• Stephen Hemminger's avatar
    gre: propagate ipv6 transport class · dd4ba83d
    Stephen Hemminger authored
    
    
    This patch makes IPV6 over IPv4 GRE tunnel propagate the transport
    class field from the underlying IPV6 header to the IPV4 Type Of Service
    field. Without the patch, all IPV6 packets in tunnel look the same to QoS.
    
    This assumes that IPV6 transport class is exactly the same
    as IPv4 TOS. Not sure if that is always the case?  Maybe need
    to mask off some bits.
    
    The mask and shift to get tclass is copied from ipv6/datagram.c
    
    Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    dd4ba83d