qusal/salt/sys-usb

sys-usb

PCI handler of USB devices in Qubes OS.

Table of Contents

• Description
• Installation
• Access control
• Usage
• Credits

Description

Setup named disposables for USB qubes. During creation, it tries to separate the USB controllers to different qubes is possible.

Installation

• Top:

sudo qubesctl top.enable sys-usb
sudo qubesctl --targets=tpl-sys-usb state.apply
sudo qubesctl top.disable sys-usb

• State:

sudo qubesctl state.apply sys-usb.create
sudo qubesctl --skip-dom0 --targets=tpl-sys-usb state.apply sys-usb.install

If you use an USB keyboard, also run:

sudo qubesctl state.apply sys-usb.keyboard

Install the proxy on the client template:

sudo qubesctl --skip-dom0 --targets=tpl-QUBE state.apply sys-usb.install-client-proxy

If the client requires decrypting a device, install on the client template:

sudo qubesctl --skip-dom0 --targets=tpl-QUBE state.apply sys-usb.install-client-cryptsetup

If the client requires a FIDO device, install on the client template:

sudo qubesctl --skip-dom0 --targets=tpl-QUBE state.apply sys-usb.install-client-fido

And enable the CTAP Proxy service for the client qubes:

qvm-features QUBE service.qubes-ctap-proxy 1

Access control

No extra services are implemented, consult upstream to learn how to use the following services:

• qubes.InputMouse, qubes.InputKeyboard, qubes.InputTablet;
• ctap.GetInfo, ctap.ClientPin, u2f.Register, u2f.Authenticate, policy.RegisterArgument.

Usage

Depending on you system, one or more USB qubes will be created to hold the different controllers. The qube names are disp-sys-usb, disp-sys-usb-left, disp-sys-usb-dock.

Start a USB qube an connect a device to it. USB PCI devices will appear on the system tray icon qui-devices. From there, assign it to the intended qube.

Credits

• Unman