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Bluetooth: Gracefully response to enabling LE on LE only devices

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Currently the enabling of LE on LE only devices causes an error. This
is a bit difference from other commands where trying to set the same
existing settings causes a positive response. Fix this behavior for
this single corner case.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-03-18 16:15:07 -07:00 committed by Johan Hedberg
parent ea6edfbcef
commit e7844ee599
1 changed files with 14 additions and 2 deletions
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16
net/bluetooth/mgmt.c
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@ -2209,10 +2209,22 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
MGMT_STATUS_INVALID_PARAMS);
/* LE-only devices do not allow toggling LE on/off */
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
/* Bluetooth single mode LE only controllers or dual-mode
* controllers configured as LE only devices, do not allow
* switching LE off. These have either LE enabled explicitly
* or BR/EDR has been previously switched off.
*
* When trying to enable an already enabled LE, then gracefully
* send a positive response. Trying to disable it however will
* result into rejection.
*/
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
if (cp->val == 0x01)
return send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
MGMT_STATUS_REJECTED);
}
hci_dev_lock(hdev);