1.\" Copyright (c) 2005 Maksim Yevmenkin <m_evmenkin@yahoo.com> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd September 29, 2021 28.Dt BLUETOOTH.DEVICE.CONF 5 29.Os 30.Sh NAME 31.Nm bluetooth.device.conf 32.Nd Bluetooth device configuration file 33.Sh DESCRIPTION 34Bluetooth device configuration framework provides ability to adjust certain 35Bluetooth device parameters on per-device basis. 36.Pp 37Bluetooth device configuration files are plain text files that should conform 38to basic 39.Xr sh 1 40syntax. 41Even though Bluetooth device are not exactly shell scripts, 42they are parsed and passed through shell 43.Ic eval 44command. 45This makes it possible to use various shell tricks in the Bluetooth device 46configuration files. 47.Pp 48The 49.Pa /etc/rc.d/bluetooth 50script is used to start and stop Bluetooth devices. 51This script is not executed by default when system boots. 52It is called by 53.Xr devd 8 54in response to Bluetooth device arrival and departure events. 55It is possible to execute this script by hand if required. 56The script accepts Bluetooth device driver name as an extra parameter. 57.Pp 58The system wide Bluetooth device configuration file is called 59.Pa /etc/defaults/\:bluetooth.device.conf . 60Configuration parameters set in the system wide Bluetooth device configuration 61file apply to every Bluetooth device connected to the system. 62.Pp 63Configuration parameters overrides for the specific Bluetooth device 64should be placed in the 65.Pa /etc/bluetooth/ Ns Ar DEVICE_DRIVER_NAME Ns Pa .conf 66file. 67Where 68.Ar DEVICE_DRIVER_NAME 69is the device driver name of the Bluetooth device. 70.Pp 71The following list provides a name and short description for each 72variable that can be set in a Bluetooth device configuration file. 73.Bl -tag -width indent-two 74.It Va authentication_enable 75.Pq Vt bool 76The 77.Va authentication_enable 78parameter controls if the device requires to authenticate the remote device 79at connection setup. 80If set to 81.Dq Li YES , 82the device will try to authenticate the other device at connection setup. 83Bluetooth authentication requests are handled by 84.Xr hcsecd 8 85daemon. 86.It Va class 87.Pq Vt str 88The 89.Va class 90parameter is used to indicate the capabilities of the device to 91other devices. 92For more details see 93.Dq Assigned Numbers - Bluetooth Baseband 94document. 95.It Va connectable 96.Pq Vt bool 97The 98.Va connectable 99parameter controls whether or not the device should periodically scan for 100page attempts from other devices. 101If set to 102.Dq Li YES , 103the device will periodically scan for page attempts from other devices. 104.It Va discoverable 105.Pq Vt bool 106The 107.Va discoverable 108parameter controls whether or not the device should periodically scan for 109inquiry requests from other devices. 110If set to 111.Dq Li YES , 112the device will periodically scan for inquiry requests from other devices. 113.It Va encryption_mode 114.Pq Vt str 115The 116.Va encryption_mode 117parameter controls if the device requires encryption to the remote device 118at connection setup. 119At connection setup, only the devices with the 120.Va authentication_enable 121parameter enabled and 122.Va encryption_mode 123parameter enabled will try to encrypt the connection to the other device. 124Possible values are 125.Dq Li NONE 126encryption disabled, 127.Dq Li P2P 128encryption for only point-to-point packets, 129or 130.Dq Li ALL 131encryption for both point-to-point and broadcast packets. 132.It Va hci_debug_level 133.Pq Vt int 134HCI node debug level. 135Higher values mean more verbose output. 136.It Va l2cap_debug_level 137.Pq Vt int 138L2CAP node debug level. 139Higher values mean more verbose output. 140.It Va local_name 141.Pq Vt str 142The 143.Va local_name 144parameter provides the ability to modify the user friendly name for the device. 145.It Va role_switch 146.Pq Vt bool 147The 148.Va role_switch 149parameter controls whether the local device should perform role switch. 150By default, if role switch is supported, the local device will try to perform 151role switch and become Master on incoming connection. 152Some devices do not support role switch and thus incoming connections from 153such devices will fail. 154If 155.Va role switch 156is disabled then accepting device will remain Slave. 157.El 158.Sh FILES 159.Bl -tag -width ".Pa /etc/defaults/bluetooth.device.conf" -compact 160.It Pa /etc/defaults/bluetooth.device.conf 161.It Pa /etc/rc.d/bluetooth 162.El 163.Sh EXAMPLES 164The 165.Pa /etc/bluetooth/ubt0.conf 166file should be used to specify configuration parameters overrides for the 167first USB Bluetooth device 168(device driver name is 169.Li ubt0 ) . 170.Pp 171The 172.Pa /etc/bluetooth/ubt1.conf 173file should be used to specify configuration parameters overrides for the 174second USB Bluetooth device. 175.Sh SEE ALSO 176.Xr ng_hci 4 , 177.Xr ng_l2cap 4 , 178.Xr ng_ubt 4 , 179.Xr devd 8 , 180.Xr hccontrol 8 , 181.Xr hcsecd 8 , 182.Xr l2control 8 183.Sh AUTHORS 184.An Maksim Yevmenkin Aq Mt m_evmenkin@yahoo.com 185