gdamjan

ipvtap over wifi for libvirt

ipvtap is similar to macvtap, but works over wifi too, since it uses the same mac address as the wifi interface.

libvirt doesn't support ipvtap, so we have to configure everything manually. Important data we need before we start:

• the name of the wifi interface, wlan0 in my case (it's already connected - use NM or networkd+iwd).
• the mac address of the wifi interface (it must be the same in the guest too)

On the host:

kokjo

// compile with: gcc -static -o sendfd sendfd.c
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <strings.h>

int send_fd(int sock, int fd){
    // This function does the arcane magic for sending
    // file descriptors over unix domain sockets
    struct msghdr msg;

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000