The following commit has been merged in the master branch: commit bdc0c7ebf770e21d024c2e94c3d578392b59c5b1 Author: Linus Lüssing linus.luessing@web.de Date: Fri May 7 21:47:09 2010 +0200

Staging: batman-adv: Fix aggregation direct-link bug

So far, neighbour's secondary interface OGMs can involuntarily piggyback on primary interface OGMs that arrived on the same secondary interface before. Secondary interface OGMs should NEVER leave their direct neighbour broadcast domain! This patch ensures that secondary interface OGMs can only be aggregated to other secondary interface OGMs.

Signed-off-by: Linus Lüssing linus.luessing@web.de Signed-off-by: Marek Lindner lindner_marek@yahoo.de Signed-off-by: Andrew Lunn andrew@lunn.ch Signed-off-by: Greg Kroah-Hartman gregkh@suse.de

diff --git a/drivers/staging/batman-adv/aggregation.c b/drivers/staging/batman-adv/aggregation.c index d25e5a8..e1bd321 100644 --- a/drivers/staging/batman-adv/aggregation.c +++ b/drivers/staging/batman-adv/aggregation.c @@ -81,9 +81,15 @@ static bool can_aggregate_with(struct batman_packet *new_batman_packet, * interface only - we still can aggregate */ if ((directlink) && (new_batman_packet->ttl == 1) && - (forw_packet->if_incoming == if_incoming)) + (forw_packet->if_incoming == if_incoming) && + + /* packets from direct neighbors or + * own secondary interface packets + * (= secondary interface packets in general) */ + (batman_packet->flags & DIRECTLINK || + (forw_packet->own && + forw_packet->if_incoming->if_num != 0))) return true; - }

return false; @@ -204,7 +210,7 @@ void add_bat_packet_to_list(unsigned char *packet_buff, int packet_len, * later on */ if ((!own_packet) && - (atomic_read(&bat_priv->aggregation_enabled))) + (atomic_read(&aggregation_enabled))) send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);

new_aggregated_packet(packet_buff, packet_len,