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cfg80211/mac80211: add mesh join/leave commands

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Instead of tying mesh activity to interface up,
add join and leave commands for mesh. Since we
must be backward compatible, let cfg80211 handle
joining a mesh if a mesh ID was pre-configured
when the device goes up.

Note that this therefore must modify mac80211 as
well since mac80211 needs to lose the logic to
start the mesh on interface up.

We now allow querying mesh parameters before the
mesh is connected, which simply returns defaults.
Setting them (internally renamed to "update") is
only allowed while connected. Specify them with
the new mesh join command instead where needed.

In mac80211, beaconing must now also follow the
mesh enabled/not enabled state, which is done
by testing the mesh ID.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2010-12-03 09:20:44 +01:00
committed by John W. Linville
parent bd90fdcc5f
commit 29cbe68c51
14 changed files with 359 additions and 115 deletions
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15
net/wireless/core.c
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@@ -332,6 +332,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
WARN_ON(ops->add_station && !ops->del_station);
WARN_ON(ops->add_mpath && !ops->del_mpath);
WARN_ON(ops->join_mesh && !ops->leave_mesh);
alloc_size = sizeof(*rdev) + sizeof_priv;
@@ -752,6 +753,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
cfg80211_mlme_down(rdev, dev);
wdev_unlock(wdev);
break;
case NL80211_IFTYPE_MESH_POINT:
cfg80211_leave_mesh(rdev, dev);
break;
default:
break;
}
@@ -775,20 +779,27 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
}
cfg80211_lock_rdev(rdev);
mutex_lock(&rdev->devlist_mtx);
#ifdef CONFIG_CFG80211_WEXT
wdev_lock(wdev);
switch (wdev->iftype) {
#ifdef CONFIG_CFG80211_WEXT
case NL80211_IFTYPE_ADHOC:
cfg80211_ibss_wext_join(rdev, wdev);
break;
case NL80211_IFTYPE_STATION:
cfg80211_mgd_wext_connect(rdev, wdev);
break;
#endif
case NL80211_IFTYPE_MESH_POINT:
/* backward compat code ... */
if (wdev->mesh_id_up_len)
__cfg80211_join_mesh(rdev, dev, wdev->ssid,
wdev->mesh_id_up_len,
&default_mesh_config);
break;
default:
break;
}
wdev_unlock(wdev);
#endif
rdev->opencount++;
mutex_unlock(&rdev->devlist_mtx);
cfg80211_unlock_rdev(rdev);