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| author | Linus Lüssing <linus.luessing@web.de> | 2014-02-15 17:47:52 +0100 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-03-22 09:18:57 +0100 |
| commit | 1d8ab8d3c176d31530b3ffd4547cf731018e2a45 (patch) | |
| tree | b62208972cdfb70a853ff5177c29154fd165bea7 /net/batman-adv/sysfs.c | |
| parent | 60432d756cf06e597ef9da511402dd059b112447 (diff) | |
| download | lwn-1d8ab8d3c176d31530b3ffd4547cf731018e2a45.tar.gz lwn-1d8ab8d3c176d31530b3ffd4547cf731018e2a45.zip | |
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/sysfs.c')
| -rw-r--r-- | net/batman-adv/sysfs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c index e456bf6bb284..1ebb0d9e2ea5 100644 --- a/net/batman-adv/sysfs.c +++ b/net/batman-adv/sysfs.c @@ -539,6 +539,9 @@ BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect); static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, batadv_store_gw_bwidth); +#ifdef CONFIG_BATMAN_ADV_MCAST +BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); +#endif #ifdef CONFIG_BATMAN_ADV_DEBUG BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL); #endif @@ -558,6 +561,9 @@ static struct batadv_attribute *batadv_mesh_attrs[] = { #ifdef CONFIG_BATMAN_ADV_DAT &batadv_attr_distributed_arp_table, #endif +#ifdef CONFIG_BATMAN_ADV_MCAST + &batadv_attr_multicast_mode, +#endif &batadv_attr_fragmentation, &batadv_attr_routing_algo, &batadv_attr_gw_mode, |