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Since the SIOCETHTOOL ioctl only works for privileged daemons, if called when not root, then virNetDevGetFeatures will VIR_DEBUG a message and return 0 as if the functions were not available for the architecture. This effectively returns an empty bitmap indicating no features available. Introduced by commit id 'c9027d8f4' Signed-off-by: John Ferlan <jferlan@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>