[libvirt] PATCH: Allow specific FDs to be kept open in virExec()

[Daniel P. Berrange]

On Wed, Aug 27, 2008 at 10:21:44AM +0100, Richard W.M. Jones wrote:
> On Tue, Aug 26, 2008 at 10:41:18AM +0100, Daniel P. Berrange wrote:
> > On Thu, Aug 21, 2008 at 02:58:30PM +0100, Daniel P. Berrange wrote:
> > > With my recent patches to virExec(), all FDs except stdin/out/err are closed
> > > before the child is exec'd to prevent accidental leaks. Of course I forgot
> > > the one key place where we need to propagate FDs... The TAP devices passed
> > > to QEMU.
> > > 
> > > This patch adds a 'keepfd' parameter to virExec() which allows the caller
> > > to specify a bitset of file descriptors to keep open, and updates the 
> > > callers to use this as required. The QEMU driver specifies any TAP fds
> > > and the LXC driver specifies its PTY this way removing a previous hack.
> > > 
> > > QEMU networking works again with fix....
> > 
> > Changed to use fd_set from sys/select
> 
> Yup, +1.

Ok, committed this change - QEMU networking should work again now.

Daniel
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