l2tp: Fix PPP session disconnection

When a PPP session terminates on its own (i.e. not on behalf of a L2TP
tunnel/session request), the l2tp_ppp_finished() callback calls the
L2TP session disconnection function without updating the session's
state.
Session disconnection code then works like if the PPP session was still
up: it tries to disconnect the PPP by calling ap_session_terminate().
But since the PPP is already terminated, it returns immediately,
without calling the l2tp_ppp_finished() callback; so session cleanup
won't happen.

This patch updates the session's state upon PPP disconnection, so that
the session disconnection code won't try to disconnect the PPP in
__l2tp_session_free().
The stat_active counter is now updated inside the l2tp_ppp_finished()
callback so that it gets called upon any PPP disconnection.
Sending of the EV_CTRL_FINISHED event has also been moved. It is now
performed in the generic part of __l2tp_session_free() because it has
to be done every time the session really terminates.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>

0 files changed, 0 insertions, 0 deletions