Linux Bluetooth Obex
From Variscite Wiki
Bluetooth File Transfer
Pairing with Bluetooth device
To send files to each other two bluetooth devices should be paired first. Use bluetoothctl tool to manage the pairing
$ bluetoothctl [bluetooth]# power on [bluetooth]# pairable on [bluetooth]# scan on Copy mac address [bluetooth]# scan off [bluetooth]# pair <mac address> Approve pairing on Device if required [bluetooth]# trust <mac address> [bluetooth]# quit
For example when pairing with a PC the following is done:
root@imx6ul-var-dart:~# bluetoothctl [NEW] Controller 96:93:E0:47:39:89 Variscite [default] [bluetooth]# power on [CHG] Controller 96:93:E0:47:39:89 Class: 0x300100 Changing power on succeeded [CHG] Controller 96:93:E0:47:39:89 Powered: yes [bluetooth]# pairable on Changing pairable on succeeded [bluetooth]# scan on Discovery started [CHG] Controller 96:93:E0:47:39:89 Discovering: yes [bluetooth]# random: nonblocking pool is initialized [NEW] Device B8:6C:E8:60:C0:8F Galaxy S5 [NEW] Device 00:1A:7D:DA:71:0B Ubuntu-PC [bluetooth]# scan off [CHG] Device 38:BC:1A:20:14:5D RSSI is nil [CHG] Device 00:1A:7D:DA:71:0B RSSI is nil [CHG] Device B8:6C:E8:60:C0:8F RSSI is nil [CHG] Controller 96:93:E0:47:39:89 Discovering: no Discovery stopped [bluetooth]# pair 00:1A:7D:DA:71:0B Attempting to pair with 00:1A:7D:DA:71:0B [CHG] Device 00:1A:7D:DA:71:0B Connected: yes [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001104-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001105-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001106-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 0000110a-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 0000110b-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 0000110c-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 0000110e-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001112-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 0000112f-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001132-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001133-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001200-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001800-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00001801-0000-1000-8000-00805f9b34fb [CHG] Device 00:1A:7D:DA:71:0B UUIDs: 00005005-0000-1000-8000-0002ee000001 [CHG] Device 00:1A:7D:DA:71:0B Paired: yes Pairing successful [CHG] Device 00:1A:7D:DA:71:0B Connected: no [bluetooth]# trust 00:1A:7D:DA:71:0B [CHG] Device 00:1A:7D:DA:71:0B Trusted: yes Changing 00:1A:7D:DA:71:0B trust succeeded [bluetooth]# quit [DEL] Controller 96:93:E0:47:39:89 Variscite [default] root@imx6ul-var-dart:~#
Sending files using OBEX Protocol
To send a file to a paired device use obexctl tool.
$ DBUS_SESSION_BUS_ADDRESS=unix:path=/var/run/dbus/system_bus_socket obexctl [obex]# connect <mac address> [obex]# send <file> [obex]# quit
For example, to send /etc/fstab file to a paired PC from the example above:
root@imx6ul-var-dart:~# DBUS_SESSION_BUS_ADDRESS=unix:path=/var/run/dbus/system_bus_socket obexctl
[NEW] Client /org/bluez/obex
[obex]# connect 00:1A:7D:DA:71:0B
Attempting to connect to 00:1A:7D:DA:71:0B
[NEW] Session /org/bluez/obex/client/session0 [default]
[NEW] ObjectPush /org/bluez/obex/client/session0
Connection successful
[00:1A:7D:DA:71:0B]# send /etc/fstab
Attempting to send /etc/fstab to /org/bluez/obex/client/session0
[NEW] Transfer /org/bluez/obex/client/session0/transfer0
Transfer /org/bluez/obex/client/session0/transfer0
Status: queued
Name: fstab
Size: 637
Filename: /etc/fstab
Session: /org/bluez/obex/client/session0
[CHG] Transfer /org/bluez/obex/client/session0/transfer0 Status: complete
[DEL] Transfer /org/bluez/obex/client/session0/transfer0
Receiving files using OBEX Protocol
No special action is required to receive a file that was sent from a paired device. The file will be stored under /tmp/bluetooth-inbox.