diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2015-01-22 22:15:21 +0300 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2015-01-22 22:42:45 +0300 |
| commit | 3a5486e1fdb0da7a18788f40b17d351af90d0ea7 (patch) | |
| tree | 9c203f900e524566e49ab76dd46fac86ac467ce7 | |
| parent | 574ea3c7137c9deee75b107221be5159720ab501 (diff) | |
| download | linux-3a5486e1fdb0da7a18788f40b17d351af90d0ea7.tar.xz | |
Bluetooth: Limit BR/EDR switching for LE only with secure connections
When a powered on dual-mode controller has been configured to operate
as LE only with secure connections, then the BR/EDR side of things can
not be switched back on. Do reconfigure the controller it first needs
to be powered down.
The secure connections feature is implemented in the BR/EDR controller
while for LE it is implemented in the host. So explicitly forbid such
a transaction to avoid inconsistent states.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| -rw-r--r-- | net/bluetooth/mgmt.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 3049a4815665..e86b8d9105e9 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4691,9 +4691,16 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) * 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. + * + * The same restrictions applies when secure connections + * has been enabled. For BR/EDR this is a controller feature + * while for LE it is a host stack feature. This means that + * switching BR/EDR back on when secure connections has been + * enabled is not a supported transaction. */ if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) && - bacmp(&hdev->static_addr, BDADDR_ANY)) { + (bacmp(&hdev->static_addr, BDADDR_ANY) || + test_bit(HCI_SC_ENABLED, &hdev->dev_flags))) { err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, MGMT_STATUS_REJECTED); goto unlock; |