[kronosnet/kronosnet] cae7ca: nozzle: don´t leak tun/tap interfaces in test suite

Branch: refs/heads/stable1-proposed Home: https://github.com/kronosnet/kronosnet Commit: cae7cafa5f0301df53eb8510638531b5d2932b5f https://github.com/kronosnet/kronosnet/commit/cae7cafa5f0301df53eb851063853… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2023-09-18 (Mon, 18 Sep 2023) Changed paths: M libnozzle/tests/test-common.c Log Message: ----------- nozzle: don´t leak tun/tap interfaces in test suite the need_tun() test check to verify that the kernel module for tun/tap is loaded, was opening a generic /dev/tun (or /dev/tap) to verify the presence of the kernel module. On linux, closing the fd to the tap/tun device is enough to destroy the device. On BSD the device is set to DOWN on closing the fd, but it´s not destroyed. Stop leaking by gathering ifr ioctl info from the generic interface created by BSD and pass it to the ioctlfd to destroy. Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>