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Re: [libvirt] [RFC][PATCH] lxc: drop CAP_SYS_BOOT capability to prevent rebooting from inside containers



On Mon, May 11, 2009 at 05:22:15PM +0100, Daniel P. Berrange wrote:
> On Mon, May 11, 2009 at 05:59:45PM +0200, Matthias Bolte wrote:
> > Hi,
> > 
> > I needed to apply the following two small changes to get it compile.
> > 
> > On my system (Ubuntu 9.04) I don't have a sys/capability.h header, but
> > a linux/capability.h header as part of the linux-libc-dev package.
> 
> That is because sys/capability.h is provided by libcap, not libc.
> I guess you don't have libcap-dev installed.
> 
> $ rpm -qf /usr/include/sys/capability.h
> libcap-devel-2.06-4.fc9.i386
> 
> 
> > 
> > diff --git a/src/lxc_container.c b/src/lxc_container.c
> > index 3687750..a2b3051 100644
> > --- a/src/lxc_container.c
> > +++ b/src/lxc_container.c
> > @@ -42,7 +42,7 @@
> >  #include <linux/fs.h>
> > 
> >  #include <sys/prctl.h>
> > -#include <sys/capability.h>
> > +#include <linux/capability.h>
> > 
> >  #include "virterror_internal.h"
> >  #include "logging.h"
> 
> NACK to this change.

Actually I take that back. We don't need anything in sys/capability.h, so its
pointless adding a dep on libcap. Lets just use the linux/capability.h header
to get the prctl() definition & constants.


Daniel
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