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 > [email protected] > https://www.virtualbox.org/mailman/listinfo/vbox-dev > _______________________________________________ vbox-dev mailing list [email protected] https://www.virtualbox.org/mailman/listinfo/vbox-dev
