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| author | Johan Hedberg <johan.hedberg@intel.com> | 2013-04-19 18:35:21 +0300 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2013-04-23 20:20:12 -0300 |
| commit | c73eee9172bf061202c75ad4d16506a7efd04d1c (patch) | |
| tree | 6141b15c1eeddd09cf1a7324cc6974f75cd41189 /net/bluetooth/mgmt.c | |
| parent | 07dc93dd14957dc1faba08f0aadd27b082e35ba2 (diff) | |
| download | lwn-c73eee9172bf061202c75ad4d16506a7efd04d1c.tar.gz lwn-c73eee9172bf061202c75ad4d16506a7efd04d1c.zip | |
Bluetooth: Fix sending write_le_host_supporte for LE-only controllers
The Bluetooth Core Specification (4.0) defines the Write LE Host
Supported HCI command as only available for controllers supporting
BR/EDR. This is further reflected in the Read Local Extended Features
HCI command also not being available for LE-only controllers. In other
words, host-side LE support is implicit for single-mode LE controllers
and doesn't have explicit HCI-level enablement.
This patch ensures that the LE setting is always exposed as enabled
through mgmt and returns a "rejected" response if user space tries to
toggle the setting. The patch also ensures that Write LE Host Supported
is never sent for LE-only controllers.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth/mgmt.c')
| -rw-r--r-- | net/bluetooth/mgmt.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 4c830c62ef74..35fef22703e9 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1351,6 +1351,11 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) return cmd_status(sk, hdev->id, MGMT_OP_SET_LE, MGMT_STATUS_INVALID_PARAMS); + /* LE-only devices do not allow toggling LE on/off */ + if (!lmp_bredr_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_LE, + MGMT_STATUS_REJECTED); + hci_dev_lock(hdev); val = !!cp->val; @@ -3347,7 +3352,8 @@ static int powered_update_hci(struct hci_dev *hdev) hci_req_add(&req, HCI_OP_WRITE_SSP_MODE, 1, &ssp); } - if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { + if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags) && + lmp_bredr_capable(hdev)) { struct hci_cp_write_le_host_supported cp; cp.le = 1; |