Hey... new to this list. I was looking for a way to use Unix domain sockets as a network transport between local VMs.
I'm part of a team where we run dozens if not hundreds of VMs on a single compute instance which are highly interconnected. In the current implementation, I use UDP sockets (e.g. something like -netdev id=bla,type=socket,udp=localhost:1234,localaddr=localhost:5678) which works great. The downside of this approach is that I need to keep track of all the UDP ports in use and that there's a potential for clashes. Clearly, having Unix domain sockets where I could store the sockets in the VM's directory would be much easier to manage. However, even though there is some AF_UNIX support in net/socket.c, it's - not configurable - it doesn't work As a side note, I tried to pass in an already open FD, but that didn't work either. So, I added some code which does work for me... e.g. - can specify the socket paths like -netdev id=bla,type=socket,unix=/tmp/in:/tmp/out - it does forward packets between two Qemu instances running back-to-back I'm wondering if this is of interest for the wider community and, if so, how to proceed. Thanks, -ralph Commit https://github.com/rschmied/qemu/commit/73f02114e718ec898c7cd8e855d0d5d5d7abe362
