Bluetooth: Introduce flag for limited discoverable mode

Add a new flag that can be set when in limited discoverable mode. This
flag will cause the limited discoverable bit in the class of device
value to bet set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b096f5f73789..f4650a8c1194 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -125,6 +125,7 @@ enum {
         HCI_ADVERTISING,
         HCI_CONNECTABLE,
         HCI_DISCOVERABLE,
+        HCI_LIMITED_DISCOVERABLE,
         HCI_LINK_SECURITY,
         HCI_PERIODIC_INQ,
         HCI_FAST_CONNECTABLE,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 285d571eee6b..d5eaa28bfd52 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -724,6 +724,9 @@ static void update_class(struct hci_request *req)
         cod[1] = hdev->major_class;
         cod[2] = get_service_classes(hdev);
 
+        if (test_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags))
+                cod[1] |= 0x20;
+
         if (memcmp(cod, hdev->dev_class, 3) == 0)
                 return;