I was wondering whether Oracle VM VirtualBox Extension Pack is open source. Unlike VirtualBox itself it looks like it isn't.
It adds support for USB 2.0, for RDP and disk encryption.
Are there any alternatives to allow for forwarding USB HID traffic in VirtualBox (like a user-made extension-pack) or is there a good FOSS alternative to VirtualBox+Extension Pack altogether?
So to be more precise: I'm looking for recommendations
- on open source software that allows me to have functionalities of the Extension Pack in VirtualBox. For example FOSS forks of VirtualBox, or open source Extension Packs for the standard VirtualBox.
- on FOSS hypervisors (including potential extensions to them) that are similar to VirtualBox.
It should run on Debian, host arbitrary OSes, have a GUI, allow for bridging (Internet-access) and NAT (for private networks of VMs) and offer good performance.
Edit: The answer is AQemu + qemu-kvm. Now I haven't tried Xen and some other GUIs like virt-manager, Archipel and Kimchi.