apparmor: allow libvirtd to call pygrub

When using xen through libxl in Debian/Ubuntu it needs to be able to
call pygrub.

This is placed in a versioned path like /usr/lib/xen-4.11/bin.
In theory the rule could be more strict by rendering the libexec_dir
setting pkg-config can derive from libbxen-dev. But that would make
particular libvirt/xen packages version-depend on each other. It seems
more reasonable to avoid these versioned dependencies and use a wildcard
rule instead as it is already in place for libxl-save-helper.

Note: This change was in Debian [1] and Ubuntu [2] for quite some time
already.

[1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931768
[2]: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1326003

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Acked-by: Jamie Strandboge <jamie@canonical.com>

diff --git a/src/security/apparmor/usr.sbin.libvirtd.in b/src/security/apparmor/usr.sbin.libvirtd.in
index 1e137039e974b8b55a0234112eaaa271b1ec0c01..312fa4b6d1d565cceb866ce639765d37149ac3b8 100644 (file)
--- a/src/security/apparmor/usr.sbin.libvirtd.in
+++ b/src/security/apparmor/usr.sbin.libvirtd.in
@@ -86,6 +86,7 @@ profile libvirtd @sbindir@/libvirtd flags=(attach_disconnected) {
   /usr/{lib,lib64}/xen-common/bin/xen-toolstack PUx,
   /usr/{lib,lib64}/xen/bin/* Ux,
   /usr/lib/xen-*/bin/libxl-save-helper PUx,
+  /usr/lib/xen-*/bin/pygrub PUx,
   /usr/{lib,lib64,lib/qemu,libexec}/vhost-user-gpu PUx,
 
   # Required by nwfilter_ebiptables_driver.c:ebiptablesWriteToTempFile() to