Bluetooth: Allow reading configuration info when unconfigured

Reading the controller configuration information is a valid management
command when the controller is unconfigured. Allow this command, but
return invalid index on all other commands.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c7e5d46..766411e 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -5455,12 +5455,18 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
                }
 
                if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
-                   test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) ||
                    test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
                        err = cmd_status(sk, index, opcode,
                                         MGMT_STATUS_INVALID_INDEX);
                        goto done;
                }
+
+               if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) &&
+                   opcode != MGMT_OP_READ_CONFIG_INFO) {
+                       err = cmd_status(sk, index, opcode,
+                                        MGMT_STATUS_INVALID_INDEX);
+                       goto done;
+               }
        }
 
        if (opcode >= ARRAY_SIZE(mgmt_handlers) ||