diff options
| -rw-r--r-- | net/bluetooth/mgmt.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 49581e99685c..72ff19f26991 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -5198,6 +5198,27 @@ unlock: return err; } +/* Helper for Add/Remove Device commands */ +static void update_page_scan(struct hci_dev *hdev, u8 scan) +{ + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + return; + + if (!hdev_is_powered(hdev)) + return; + + /* If HCI_CONNECTABLE is set then Add/Remove Device should not + * make any changes to page scanning. + */ + if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) + return; + + if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) + scan |= SCAN_INQUIRY; + + hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); +} + static void device_added(struct sock *sk, struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type, u8 action) { @@ -5233,6 +5254,8 @@ static int add_device(struct sock *sk, struct hci_dev *hdev, hci_dev_lock(hdev); if (cp->addr.type == BDADDR_BREDR) { + bool update_scan; + /* Only "connect" action supported for now */ if (cp->action != 0x01) { err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE, @@ -5241,10 +5264,16 @@ static int add_device(struct sock *sk, struct hci_dev *hdev, goto unlock; } + update_scan = list_empty(&hdev->whitelist); + err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr, cp->addr.type); if (err) goto unlock; + + if (update_scan) + update_page_scan(hdev, SCAN_PAGE); + goto added; } @@ -5324,6 +5353,9 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev, goto unlock; } + if (list_empty(&hdev->whitelist)) + update_page_scan(hdev, SCAN_DISABLED); + device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type); goto complete; @@ -5373,6 +5405,8 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev, kfree(b); } + update_page_scan(hdev, SCAN_DISABLED); + list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) { if (p->auto_connect == HCI_AUTO_CONN_DISABLED) continue; |