[libvirt] [PATCH 1/1] virt-aa-helper: add unix channels (esp for qemu-guest-agent)

[Serge Hallyn]

Quoting Ján Tomko (jtomko at redhat.com):
> On Mon, Apr 06, 2015 at 04:12:03PM +0000, Serge Hallyn wrote:
> > The original bug report was at
> > https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1393842
> > 
> > Signed-off-by: Serge Hallyn <serge.hallyn at ubuntu.com>
> > ---
> >  src/security/virt-aa-helper.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> 
> ACK
> 
> Should virt-aa-helper-test be updated too?

I guess so.

More importantly, are there cases in libvirt where there is a an abstract
UNIX channel?  If so then we'd have to avoid those cases.  The current code
will write out an empty string for the file path, which probably will result
in a corrupt policy.

> Jan
> 
> > diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
> > index e53779e..8ec95c1 100644
> > --- a/src/security/virt-aa-helper.c
> > +++ b/src/security/virt-aa-helper.c
> > @@ -998,6 +998,7 @@ get_files(vahControl * ctl)
> >              (ctl->def->channels[i]->source.type == VIR_DOMAIN_CHR_TYPE_PTY ||
> >               ctl->def->channels[i]->source.type == VIR_DOMAIN_CHR_TYPE_DEV ||
> >               ctl->def->channels[i]->source.type == VIR_DOMAIN_CHR_TYPE_FILE ||
> > +             ctl->def->channels[i]->source.type == VIR_DOMAIN_CHR_TYPE_UNIX ||
> >               ctl->def->channels[i]->source.type == VIR_DOMAIN_CHR_TYPE_PIPE) &&
> >              ctl->def->channels[i]->source.data.file.path)
> >              if (vah_add_file_chardev(&buf,
> > -- 
> > 2.1.4
> > 
> > --
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> > libvir-list at redhat.com
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