Bluetooth: Fix BR/EDR Link Key type when derived through LE SC
We need to set the correct Link Key type based on the properties of the
LE SC pairing that it was derived from. If debug keys were used the type
should be a debug key, and the authenticated vs unauthenticated
information should be set on what kind of security level was reached.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index b6cdb55..a322019 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -965,9 +965,30 @@
}
if (smp->link_key) {
- hci_add_link_key(hdev, smp->conn->hcon, &hcon->dst,
- smp->link_key, HCI_LK_AUTH_COMBINATION_P256,
- 0, NULL);
+ struct link_key *key;
+ u8 type;
+
+ if (test_bit(SMP_FLAG_DEBUG_KEY, &smp->flags))
+ type = HCI_LK_DEBUG_COMBINATION;
+ else if (hcon->sec_level == BT_SECURITY_FIPS)
+ type = HCI_LK_AUTH_COMBINATION_P256;
+ else
+ type = HCI_LK_UNAUTH_COMBINATION_P256;
+
+ key = hci_add_link_key(hdev, smp->conn->hcon, &hcon->dst,
+ smp->link_key, type, 0, &persistent);
+ if (key) {
+ mgmt_new_link_key(hdev, key, persistent);
+
+ /* Don't keep debug keys around if the relevant
+ * flag is not set.
+ */
+ if (!test_bit(HCI_KEEP_DEBUG_KEYS, &hdev->dev_flags) &&
+ key->type == HCI_LK_DEBUG_COMBINATION) {
+ list_del_rcu(&key->list);
+ kfree_rcu(key, rcu);
+ }
+ }
}
}