[vbox-dev] Using VirtualBox network drivers
Ivo at UFO-Net.nl
Wed Dec 5 15:59:09 PST 2012
Just a few ideas which are probably somewhat easier:
- Use libpcap to capture and inject network packets (useable directly
from userspace, you will need to handle packet filtering yourself but
- Use a tap device and a linux kernel network bridge (the tap device
will work like a real switch port, with some filtering provided by the
- Use VDE (should be easy to use, can connect to host network
interfaces, tap devices or act as a NAT gateway)
Op 5-12-2012 23:17, Gary Palter schreef:
> I am working on a project for a client which involves migrating a 20+ year old application to Linux. (All I can say about the application is that it's an emulator for an almost 30 year old computer architecture.)
> The guest's operating system is aware that it's running in a virtual machine. For network access, it communicates with the emulator through a set of queues to send and receive Ethernet packets. In the original emulator, we attach a packet filter to the Ethernet interface in order to inject packets onto the wire and grab packets intended for the guest.
> For the new emulator, we want to use the VirtualBox network drivers to setup a bridged interface. I've spent several hours reading through the source code and, frankly, I'm lost.
> How, exactly, does VirtualBox setup a bridged interface? (I know that VboxNetFlt driver is involved but I don't know how it's hooked up.) How is ARP handled? How would I use the VirtualBox drivers in our emulator, keeping in mind that there's no VBox guest involved?
> Thank you for your assistance,
> - Gary Palter
> Principal Software Engineer
> Clozure Associates
> vbox-dev mailing list
> vbox-dev at virtualbox.org
More information about the vbox-dev