• James Chapman's avatar
    l2tp: Add debugfs files for dumping l2tp debug info · 0ad66140
    James Chapman authored
    The existing pppol2tp driver exports debug info to
    /proc/net/pppol2tp. Rather than adding info to that file for the new
    functionality added in this patch series, we add new files in debugfs,
    leaving the old /proc file for backwards compatibility (L2TPv2 only).
    
    Currently only one file is provided: l2tp/tunnels, which lists
    internal debug info for all l2tp tunnels and sessions. More files may
    be added later. The info is for debug and problem analysis only -
    userspace apps should use netlink to obtain status about l2tp tunnels
    and sessions.
    
    Although debugfs does not support net namespaces, the tunnels and
    sessions dumped in l2tp/tunnels are only those in the net namespace of
    the process reading the file.
    Signed-off-by: default avatarJames Chapman <jchapman@katalix.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    0ad66140
l2tp_core.h 9.65 KB