mac80211: mesh STAs only process mesh beacons
Before, a mesh STA would execute some code on behalf of AP or IBSS
beacons. Since the mesh stack currently does not consider anything but
other mesh STAs interesting, limit processing to just these and save a
little overhead.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 5bed4fd..a350cab 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -703,8 +703,10 @@
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
&elems);
- /* ignore beacons from secure mesh peers if our security is off */
- if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE)
+ /* ignore non-mesh or secure / unsecure mismatch */
+ if ((!elems.mesh_id || !elems.mesh_config) ||
+ (elems.rsn && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) ||
+ (!elems.rsn && sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE))
return;
if (elems.ds_params && elems.ds_params_len == 1)
@@ -717,8 +719,7 @@
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
- if (elems.mesh_id && elems.mesh_config &&
- mesh_matches_local(sdata, &elems))
+ if (mesh_matches_local(sdata, &elems))
mesh_neighbour_update(sdata, mgmt->sa, &elems);
if (ifmsh->sync_ops)