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Bluetooth: Fix security level for peripheral role 

While playing the peripheral role, the host gets a LE Long Term Key
Request Event from the controller when a connection is established
with a bonded device. The host then informs the LTK which should be
used for the connection. Once the link is encrypted, the host gets
an Encryption Change Event.

Therefore we should set conn->pending_sec_level instead of conn->
sec_level in hci_le_ltk_request_evt. This way, conn->sec_level is
properly updated in hci_encrypt_change_evt.

Moreover, since we have a LTK associated to the device, we have at
least BT_SECURITY_MEDIUM security level.

Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Andre Guedes 2013-07-31 16:25:28 -03:00 committed by Gustavo Padovan
parent 0a3658cccd
commit f8776218e8
1 changed files with 3 additions and 1 deletions
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4
net/bluetooth/hci_event.c
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@ -3557,7 +3557,9 @@ static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
cp.handle = cpu_to_le16(conn->handle);
if (ltk->authenticated)
conn->sec_level = BT_SECURITY_HIGH;
conn->pending_sec_level = BT_SECURITY_HIGH;
else
conn->pending_sec_level = BT_SECURITY_MEDIUM;
hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);