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Bluetooth: Expire RPA if encryption fails

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If encryption fails and we're using an RPA it may be because of a
conflict with another device. To avoid repeated failures the safest
action is to simply mark the RPA as expired so that a new one gets
generated as soon as the connection drops.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-09-10 22:16:35 -07:00 committed by Marcel Holtmann
parent 5be5e275ad
commit 7ed3fa2078
1 changed files with 6 additions and 0 deletions
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6
net/bluetooth/hci_event.c
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@ -2438,6 +2438,12 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
}
/* We should disregard the current RPA and generate a new one
* whenever the encryption procedure fails.
*/
if (ev->status && conn->type == LE_LINK)
set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags);
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
if (ev->status && conn->state == BT_CONNECTED) {