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cfg80211: NL80211_ATTR_SOCKET_OWNER support for CMD_CONNECT

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Disconnect or deauthenticate when the owning socket is closed if this
flag is supplied to CMD_CONNECT or CMD_ASSOCIATE.  This may be used
to ensure userspace daemon doesn't leave an unmanaged connection behind.

In some situations it would be possible to account for that, to some
degree, in the deamon restart code or in the up/down scripts without
the use of this attribute.  But there will be systems where the daemon
can go away for varying periods without a warning due to local resource
management.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrzej Zaborowski
2017-01-06 16:33:43 -05:00
committed by Johannes Berg
parent 4ef8c1c93f
commit bd2522b168
7 changed files with 76 additions and 1 deletions
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5
net/wireless/mlme.c
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@@ -345,6 +345,11 @@ int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
!ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
return 0;
if (ether_addr_equal(wdev->disconnect_bssid, bssid) ||
(wdev->current_bss &&
ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
wdev->conn_owner_nlportid = 0;
return rdev_deauth(rdev, dev, &req);
}