From 1d8ab8d3c176d31530b3ffd4547cf731018e2a45 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Linus=20L=C3=BCssing?= Date: Sat, 15 Feb 2014 17:47:52 +0100 Subject: batman-adv: Modified forwarding behaviour for multicast packets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With this patch a multicast packet is not always simply flooded anymore, the behaviour for the following cases is changed to reduce unnecessary overhead: If all nodes within the horizon of a certain node have signalized multicast listener announcement capability then an IPv6 multicast packet with a destination of IPv6 link-local scope (excluding ff02::1) coming from the upstream of this node... * ...is dropped if there is no according multicast listener in the translation table, * ...is forwarded via unicast if there is a single node with interested multicast listeners * ...and otherwise still gets flooded. Signed-off-by: Linus Lüssing Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- net/batman-adv/send.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'net/batman-adv/send.c') diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index ce163d50e5d7..8bee5e8536b7 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -248,11 +248,11 @@ out: * * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. */ -static int batadv_send_skb_unicast(struct batadv_priv *bat_priv, - struct sk_buff *skb, int packet_type, - int packet_subtype, - struct batadv_orig_node *orig_node, - unsigned short vid) +int batadv_send_skb_unicast(struct batadv_priv *bat_priv, + struct sk_buff *skb, int packet_type, + int packet_subtype, + struct batadv_orig_node *orig_node, + unsigned short vid) { struct ethhdr *ethhdr; struct batadv_unicast_packet *unicast_packet; -- cgit v1.2.3