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Bluetooth: Check that scan window is smaller or equal than scan interval

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The scan window parameter for connection establishment and passive
scanning needs to be smaller or equal than the scan interval.

Instead of waiting for a controller to reject these values later on,
just reject them right away.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2013-10-14 09:55:32 -07:00 committed by Johan Hedberg
parent 1f209383f2
commit 899e107577
1 changed files with 4 additions and 0 deletions
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4
net/bluetooth/mgmt.c
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@ -3493,6 +3493,10 @@ static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
MGMT_STATUS_INVALID_PARAMS); MGMT_STATUS_INVALID_PARAMS);
if (window > interval)
return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
MGMT_STATUS_INVALID_PARAMS);
hci_dev_lock(hdev); hci_dev_lock(hdev);
hdev->le_scan_interval = interval; hdev->le_scan_interval = interval;