On Tue, 2017-12-19 at 14:13 +0100, Christian Ehrhardt wrote:
On live migration with --p2p like:
$ virsh migrate --live --p2p kvmguest-bionic-normal \
qemu+ssh://10.6.221.80/system
We hit an apparmor deny like:
apparmor="DENIED" operation="file_inherit"
profile="/usr/sbin/libvirtd" pid=23477 comm="ssh"
family="unix"
sock_type="stream" protocol=0 requested_mask="send receive"
denied_mask="send" addr=none peer_addr=none peer="unconfined"
The rule is not perfect, but can't be restricted further at the
moment
(new upstream kernel features needed). For now the lack of a profile
on the
peer as well as comm not being a conditional on rules do not allow to
filter
further.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt(a)canonical.com>
---
examples/apparmor/usr.sbin.libvirtd | 3 +++
1 file changed, 3 insertions(+)
diff --git a/examples/apparmor/usr.sbin.libvirtd
b/examples/apparmor/usr.sbin.libvirtd
index 8d61d15..febe8a4 100644
--- a/examples/apparmor/usr.sbin.libvirtd
+++ b/examples/apparmor/usr.sbin.libvirtd
@@ -53,6 +53,9 @@
network packet dgram,
network packet raw,
+ # for --p2p migrations
+ unix (send, receive) type=stream addr=none peer=(label=unconfined
addr=none),
+
This rule is fine, but for completeness note that the upstream kernel
doesn't support unix rules yet. apparmor_parsers that do will handle
this rule fine though, so +1 to apply.
--
Jamie Strandboge |
http://www.canonical.com