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path: root/net/batman-adv/originator.c
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2011-03-05batman-adv: make broadcast seqno operations atomicMarek Lindner1-0/+1
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>
2011-03-05batman-adv: Correct rcu refcounting for neigh_nodeMarek Lindner1-18/+8
It might be possible that 2 threads access the same data in the same rcu grace period. The first thread calls call_rcu() to decrement the refcount and free the data while the second thread increases the refcount to use the data. To avoid this race condition all refcount operations have to be atomic. Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect bonding with rcu locksSimon Wunderlich1-4/+21
bonding / alternating candidates need to be secured by rcu locks as well. This patch therefore converts the bonding list from a plain pointer list to a rcu securable lists and references the bonding candidates. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect ogm counter arrays with spinlockMarek Lindner1-2/+9
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect originator nodes with reference countersMarek Lindner1-9/+52
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect each hash row with rcu locksMarek Lindner1-7/+20
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: free neighbors when an interface is deactivatedMarek Lindner1-2/+7
hardif_disable_interface() calls purge_orig_ref() to immediately free all neighbors associated with the interface that is going down. purge_orig_neighbors() checked if the interface status is IF_INACTIVE which is set to IF_NOT_IN_USE shortly before calling purge_orig_ref(). Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect neighbor list with rcu locksMarek Lindner1-7/+28
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: convert neighbor list to hlistMarek Lindner1-15/+15
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-03-05batman-adv: protect neighbor nodes with reference countersMarek Lindner1-5/+15
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-01-31batman-adv: Update copyright yearsSven Eckelmann1-1/+1
Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-01-31batman-adv: remove unused parametersSimon Wunderlich1-1/+1
Some function parameters are obsolete now and can be removed. Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2010-12-16net: Add batman-adv meshing protocolSven Eckelmann1-0/+564
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See http://www.open-mesh.org/ for more information and user space tools. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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