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nl80211: Stop scheduled scan if netlink client disappears

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An attribute NL80211_ATTR_SOCKET_OWNER can be set by the scan initiator.
If present, the attribute will cause the scan to be stopped if the client
dies.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jukka Rissanen
2014-12-15 13:25:39 +02:00
committed by Johannes Berg
parent 31a60ed1e9
commit 93a1e86ce1
5 changed files with 40 additions and 0 deletions
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16
net/wireless/core.c
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@@ -321,6 +321,20 @@ static void cfg80211_destroy_iface_wk(struct work_struct *work)
rtnl_unlock();
}
static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
{
struct cfg80211_registered_device *rdev;
rdev = container_of(work, struct cfg80211_registered_device,
sched_scan_stop_wk);
rtnl_lock();
__cfg80211_stop_sched_scan(rdev, false);
rtnl_unlock();
}
/* exported functions */
struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
@@ -407,6 +421,7 @@ use_default_name:
INIT_LIST_HEAD(&rdev->destroy_list);
spin_lock_init(&rdev->destroy_list_lock);
INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk);
#ifdef CONFIG_CFG80211_DEFAULT_PS
rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
@@ -787,6 +802,7 @@ void wiphy_unregister(struct wiphy *wiphy)
flush_work(&rdev->event_work);
cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
flush_work(&rdev->destroy_work);
flush_work(&rdev->sched_scan_stop_wk);
#ifdef CONFIG_PM
if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)