Hi,
I am trying to create a virtual-machine using Virtualization.Framework (Apple Developer Documentation) and trying to use VZFileHandleNetworkDeviceAttachment (Apple Developer Documentation) as network device.
The creation and starting of VM are successful but am not receiving any raw packets via the created datagram socket.
Is there any working example for using VZFileHandleNetworkDeviceAttachment.
Thanks in advance.
Have you enabled the network entitlement?
It looks like all attachments are similar. I found this GO project using that specific attachment. The official Apple sample code uses similar attachments. They should work the same way.
Actually I was thinking of the basic networking entitlement, not the vm network entitlement.
Which project are you using? I mentioned a GitHub project and the Apple samples. The Apple samples aren't sandboxed, which is kind of unusual for Apple. But if you create a new project from scratch, it will be sandboxed.
If that's not the problem, then you might want to try a little project that only does datagram sockets. That is a bit unusual. Most people use HTTP these days and have no idea about lower-level protocols. Plus, doing this in the context of a Mac app is an entirely different question. Throw out everything you can find on the internet about doing datagram sockets and figure out how you would do that on a Mac. Last, and certainly not least, this would be acceptable as a demo project you are just playing around with, but DO NOT use NSFileHandle in a real app.
Maybe ask in the developer forums. This help community is not for developer discussions.
I am using the same exact project as well. In that repo example instead of using NAT am using fileHandle network device.
From the document https://developer.apple.com/documentation/virtualization/vzfilehandlenetworkdeviceattachment?language=objc i could see that the network entitlement is not needed for this network attachment.
Might the somewhat older hypervisor support be of interest? Apple Developer Documentation
Related and possibly ofminterest here is a BSD bhyve port to the hypervisor framework: https://github.com/machyve/xhyve
This runs entirely in user-space, and includes support for virtual networking.
There are others.
Virtualization.Framework support for VZFileHandleNetworkDeviceAttachment
