diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2015-01-14 22:40:42 (GMT) |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2015-01-15 08:27:47 (GMT) |
| commit | 111e4bccd1e27f0703936aadf41f227a9226e031 (patch) | |
| tree | 3f3c6c441bb176fcc1115cb3dab3094f249c36e2 /net/bluetooth | |
| parent | eeb5a067d11e69fd235a36e17ff16a3177d847a4 (diff) | |
| download | linux-111e4bccd1e27f0703936aadf41f227a9226e031.tar.xz | |
Bluetooth: Fix issue with switching BR/EDR back on when disabled
For dual-mode controllers it is possible to disable BR/EDR and operate
as LE single mode controllers with a static random address. If that is
the case, then refuse switching BR/EDR back on after the controller has
been powered.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/mgmt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index e531da8..cae6126 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4683,6 +4683,21 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, MGMT_STATUS_REJECTED); goto unlock; + } else { + /* When configuring a dual-mode controller to operate + * with LE only and using a static address, then switching + * BR/EDR back on is not allowed. + * + * Dual-mode controllers shall operate with the public + * address as its identity address for BR/EDR and LE. So + * reject the attempt to create an invalid configuration. + */ + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) && + bacmp(&hdev->static_addr, BDADDR_ANY)) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_REJECTED); + goto unlock; + } } if (mgmt_pending_find(MGMT_OP_SET_BREDR, hdev)) { |