• James Chapman's avatar
    l2tp: Add netlink control API for L2TP · 309795f4
    James Chapman authored
    In L2TPv3, we need to create/delete/modify/query L2TP tunnel and
    session contexts. The number of parameters is significant. So let's
    use netlink. Userspace uses this API to control L2TP tunnel/session
    contexts in the kernel.
    The previous pppol2tp driver was managed using [gs]etsockopt(). This
    API is retained for backwards compatibility. Unlike L2TPv2 which
    carries only PPP frames, L2TPv3 can carry raw ethernet frames or other
    frame types and these do not always have an associated socket
    family. Therefore, we need a way to use L2TP sessions that doesn't
    require a socket type for each supported frame type. Hence netlink is
    Signed-off-by: default avatarJames Chapman <jchapman@katalix.com>
    Reviewed-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
l2tp.h 4.16 KB