From: Linus Lüssing linus.luessing@web.de
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: Andrew Lunn andrew@lunn.ch --- drivers/staging/batman-adv/aggregation.c | 12 +++++++++--- 1 files changed, 9 insertions(+), 3 deletions(-)
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,