ble.enum and ble.write only works one time per execution

[lkmidas]

Description of the bug or feature request

When I use the latest precompiled binary of bettercap 2.28 (https://github.com/bettercap/bettercap/releases/download/v2.28/bettercap_linux_amd64_v2.28.zip), I can only perform ble.enum or ble.write without problems once per execution of bettercap. Further calls to these commands will always hang the program (and may require hciconfig up/down to make it works again).

Environment

• Bettercap version: 2.28.
• OS version: tested on Ubuntu 18.04 and latest Kali linux.
• Command line arguments: none or -debug.
• ble.enum, ble.write.
• No debug output.

Steps to Reproduce

$sudo  bettercap
>> net.recon off
>> ble.recon on
>> ble.show # get an address
>> ble.enum MAC

Expected behavior: ble.enum or ble.write can be executed indefinitely per launch.

Actual behavior:

ble.enum or ble.write can only be executed once per launch.

[obihann]

Exact same experience for me.

[evilsocket]

unfortunately this is a known bug of the gatt library ( http://github.com/bettercap/gatt ) that i forked and tried to fix a bit, but it's still very unstable ... when i started working on the BLE module there was nothing better that supported both linux and mac ... then we lost support with newer macs, so in theory we could just find another library but that'd take some major reworking of the module

[pironc]

unfortunately this is a known bug of the gatt library ( http://github.com/bettercap/gatt ) that i forked and tried to fix a bit, but it's still very unstable ... when i started working on the BLE module there was nothing better that supported both linux and mac ... then we lost support with newer macs, so in theory we could just find another library but that'd take some major reworking of the module

any idea if this is the same issue (not working once then not at all like some people mention), Ubuntu 20.04.3 LTS focal, ran make with "sudo apt-get install libusb-1.0-0-dev" in order to succeed the installation (otherwise couldn't make & start bettcap)

recon works fine, show too but I can't get enum to work. hciconfig is UP RUNNING.

Hope this helps.