Commit 426c189a authored by Andre Guedes's avatar Andre Guedes Committed by Johan Hedberg
Browse files

Bluetooth: Change interleaved discovery behavior 



According to last discussion on IRC, if an interleaved discovery is
issued, but the device is not dual mode, we should return error
instead of performing a regular BR/EDR or LE-only discovery.

Signed-off-by: default avatarAndre Guedes <andre.guedes@openbossa.org>
Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 978c93b9

net/bluetooth/mgmt.c

+5 −24
Original line number Diff line number Diff line
@@ -2540,29 +2540,6 @@ unlock: 
	return err;

}



static int discovery(struct hci_dev *hdev)

{

	int err;



	if (lmp_host_le_capable(hdev)) {

		if (lmp_bredr_capable(hdev)) {

			err = hci_le_scan(hdev, LE_SCAN_TYPE,

						LE_SCAN_INT, LE_SCAN_WIN,

						LE_SCAN_TIMEOUT_BREDR_LE);

		} else {

			hdev->discovery.type = DISCOV_TYPE_LE;

			err = hci_le_scan(hdev, LE_SCAN_TYPE,

						LE_SCAN_INT, LE_SCAN_WIN,

						LE_SCAN_TIMEOUT_LE_ONLY);

		}

	} else {

		hdev->discovery.type = DISCOV_TYPE_BREDR;

		err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);

	}



	return err;

}



int mgmt_interleaved_discovery(struct hci_dev *hdev)

{

	int err;
@@ -2632,7 +2609,11 @@ static int start_discovery(struct sock *sk, u16 index, 
		break;



	case DISCOV_TYPE_INTERLEAVED:

		err = discovery(hdev);

		if (lmp_host_le_capable(hdev) && lmp_bredr_capable(hdev))

			err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,

					LE_SCAN_WIN, LE_SCAN_TIMEOUT_BREDR_LE);

		else

			err = -ENOTSUPP;

		break;



	default:

CRA Git | Maintained and supported by SUSTech CRA and CCSE