tree 47c1787dce5d3bda821a4ccb015d54b6b9cadc82
parent 0ede9f41b217d8982ab426e3c8c1b692a280a16f
author Marek Lindner <lindner_marek@yahoo.de> 1295992331 +0000
committer Marek Lindner <lindner_marek@yahoo.de> 1299325809 +0100

batman-adv: make broadcast seqno operations atomic

Batman-adv could receive several payload broadcasts at the same time
that would trigger access to the broadcast seqno sliding window to
determine whether this is a new broadcast or not. If these incoming
broadcasts are accessing the sliding window simultaneously it could
be left in an inconsistent state. Therefore it is necessary to make
sure this access is atomic.

Reported-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>