Bluetooth: Map sec_level to link key requirements

Keep the link key type together with connection and use it to
map security level to link key requirements. Authenticate and/or
encrypt connection if the link is insufficiently secure.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 35f98980070c..655af8bc60e2 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2095,6 +2095,10 @@ static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff
                 hci_conn_hold(conn);
                 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
                 pin_len = conn->pin_length;
+
+                if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
+                        conn->key_type = ev->key_type;
+
                 hci_conn_put(conn);
         }