diff options
| author | Linus Lüssing <linus.luessing@web.de> | 2014-02-15 20:47:52 +0400 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-03-22 12:18:57 +0400 |
| commit | 1d8ab8d3c176d31530b3ffd4547cf731018e2a45 (patch) | |
| tree | b62208972cdfb70a853ff5177c29154fd165bea7 /net/batman-adv/send.c | |
| parent | 60432d756cf06e597ef9da511402dd059b112447 (diff) | |
| download | linux-1d8ab8d3c176d31530b3ffd4547cf731018e2a45.tar.xz | |
batman-adv: Modified forwarding behaviour for multicast packets
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 <linus.luessing@web.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/send.c')
| -rw-r--r-- | net/batman-adv/send.c | 10 |
1 files changed, 5 insertions, 5 deletions
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; |