mac80211: keep mesh ifaces in allmulti mode
Currently a mesh node will not forward a multicast frame if it is not subscribed
to the specific multicast address. This patch addresses the issue and fixes mesh
multicast forwarding.
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 0c02c47..aa5a191 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -245,10 +245,13 @@
case IEEE80211_IF_TYPE_AP:
sdata->bss = &sdata->u.ap;
break;
+ case IEEE80211_IF_TYPE_MESH_POINT:
+ /* mesh ifaces must set allmulti to forward mcast traffic */
+ atomic_inc(&local->iff_allmultis);
+ break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_MNTR:
case IEEE80211_IF_TYPE_IBSS:
- case IEEE80211_IF_TYPE_MESH_POINT:
/* no special treatment */
break;
case IEEE80211_IF_TYPE_INVALID:
@@ -495,6 +498,9 @@
netif_addr_unlock_bh(local->mdev);
break;
case IEEE80211_IF_TYPE_MESH_POINT:
+ /* allmulti is always set on mesh ifaces */
+ atomic_dec(&local->iff_allmultis);
+ /* fall through */
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
sdata->u.sta.state = IEEE80211_DISABLED;