[vbox-dev] Using VirtualBox network drivers
palter at clozure.com
Thu Jul 18 08:11:47 PDT 2013
Well, I'm back.
My client has informed me that the alternatives suggested below aren't acceptable. They want to use the VirtualBox network drivers. How can I use those drivers without creating a VirtualBox VM? Any pointers to documentation or sample code that will show me what I need would be most helpful.
- Gary Palter
Principal Software Engineer
On Dec 5, 2012, at 6:59 PM, Ivo Smits <Ivo at UFO-Net.nl> wrote:
> 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
> it's easy)
> - 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
> network bridge)
> - Use VDE (should be easy to use, can connect to host network
> interfaces, tap devices or act as a NAT gateway)
> Ivo Smits
> 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
> vbox-dev mailing list
> vbox-dev at virtualbox.org
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