On Thu, Sep 30, 2021 at 02:00:11PM -0300, Willian Rampazzo wrote:
On Thu, Sep 30, 2021 at 5:55 AM Vladimir Sementsov-Ogievskiy
<vsementsov@virtuozzo.com> wrote:
9/30/21 11:47, Richard W.M. Jones wrote:
Under SELinux, Unix domain sockets have two labels. One is on the
disk and can be set with commands such as chcon(1). There is a
different label stored in memory (called the process label). This can
only be set by the process creating the socket. When using SELinux +
SVirt and wanting qemu to be able to connect to a qemu-nbd instance,
you must set both labels correctly first.
For qemu-nbd the options to set the second label are awkward. You can
create the socket in a wrapper program and then exec into qemu-nbd.
Or you could try something with LD_PRELOAD.
This commit adds the ability to set the label straightforwardly on the
command line, via the new --selinux-label flag. (The name of the flag
is the same as the equivalent nbdkit option.)
A worked example showing how to use the new option can be found in
this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1984938
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1984938
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
this should be Reviewed-by?
Maybe, because of this:
https://lists.gnu.org/archive/html/qemu-devel/2021-09/msg07081.html
I got confused with this v3.
Yes, I'd somehow lost the original patch and picked it up from Eric's
queue to make v3.