From db5966816cd83b8daa1aee38cb1374794f1d8b8e Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Wed, 16 Apr 2014 20:04:38 -0700 Subject: [PATCH] Bluetooth: Return EOPNOTSUPP for HCISETRAW ioctl command The HCISETRAW ioctl command is not really useful. To utilize raw and direct access to the HCI controller, the HCI User Channel feature has been introduced. Return EOPNOTSUPP to indicate missing support for this command. For legacy reasons hcidump used to use HCISETRAW for permission check to return proper error codes to users. To keep backwards compability return EPERM in case the caller does not have CAP_NET_ADMIN capability. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/hci_sock.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index b9a418e578e0..f608bffdb8b9 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -524,16 +524,7 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, case HCISETRAW: if (!capable(CAP_NET_ADMIN)) return -EPERM; - - if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) - return -EPERM; - - if (arg) - set_bit(HCI_RAW, &hdev->flags); - else - clear_bit(HCI_RAW, &hdev->flags); - - return 0; + return -EOPNOTSUPP; case HCIGETCONNINFO: return hci_get_conn_info(hdev, (void __user *) arg); -- 2.20.1