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Commit 8dbc1722 authored by Luis Carlos Cobo's avatar Luis Carlos Cobo Committed by John W. Linville
Browse files

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: default avatarLuis Carlos Cobo <luisca@cozybit.com>
Acked-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e32f85f7

net/mac80211/main.c

+7 −1
Original line number Diff line number Diff line
@@ -245,10 +245,13 @@ static int ieee80211_open(struct net_device *dev) 
	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 @@ static int ieee80211_stop(struct net_device *dev) 
		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;