Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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>
authored by Luis Carlos Cobo and committed by John W. Linville 8dbc1722 e32f85f7
+7
-1
net/mac80211/main.c
+7
-1
net/mac80211/main.c
···
245
245
case IEEE80211_IF_TYPE_AP:
246
246
sdata->bss = &sdata->u.ap;
247
247
break;
248
+
case IEEE80211_IF_TYPE_MESH_POINT:
249
+
/* mesh ifaces must set allmulti to forward mcast traffic */
250
+
atomic_inc(&local->iff_allmultis);
251
+
break;
248
252
case IEEE80211_IF_TYPE_STA:
249
253
case IEEE80211_IF_TYPE_MNTR:
250
254
case IEEE80211_IF_TYPE_IBSS:
251
-
case IEEE80211_IF_TYPE_MESH_POINT:
252
255
/* no special treatment */
253
256
break;
254
257
case IEEE80211_IF_TYPE_INVALID:
···
498
495
netif_addr_unlock_bh(local->mdev);
499
496
break;
500
497
case IEEE80211_IF_TYPE_MESH_POINT:
498
+
/* allmulti is always set on mesh ifaces */
499
+
atomic_dec(&local->iff_allmultis);
500
+
/* fall through */
501
501
case IEEE80211_IF_TYPE_STA:
502
502
case IEEE80211_IF_TYPE_IBSS:
503
503
sdata->u.sta.state = IEEE80211_DISABLED;