[libvirt] [PATCH v2] apparmor: QEMU bridge helper policy updates

[Corey Bryant]

This patch provides AppArmor policy updates for the QEMU bridge helper.
The QEMU bridge helper is a SUID executable exec'd by QEMU that drops
capabilities to CAP_NET_ADMIN and adds a tap device to a network
bridge. For more details on the helper, please refer to:

http://lists.gnu.org/archive/html/qemu-devel/2012-01/msg03562.html

Signed-off-by: Corey Bryant <coreyb at linux.vnet.ibm.com>
---
 examples/apparmor/libvirt-qemu |   22 +++++++++++++++++++++-
 1 files changed, 21 insertions(+), 1 deletions(-)

diff --git a/examples/apparmor/libvirt-qemu b/examples/apparmor/libvirt-qemu
index 10cdd36..c5a11b6 100644
--- a/examples/apparmor/libvirt-qemu
+++ b/examples/apparmor/libvirt-qemu
@@ -1,4 +1,4 @@
-# Last Modified: Mon Apr  5 15:11:27 2010
+# Last Modified: Fri Mar  9 14:43:22 2012
 
   #include <abstractions/base>
   #include <abstractions/consoles>
@@ -108,3 +108,23 @@
   /bin/dash rmix,
   /bin/dd rmix,
   /bin/cat rmix,
+
+  /usr/libexec/qemu-bridge-helper Cx,
+
+  # child profile for bridge helper process
+  profile /usr/libexec/qemu-bridge-helper {
+    #include <abstractions/base>
+
+    capability setuid,
+    capability setgid,
+    capability setpcap,
+    capability net_admin,
+
+    network inet stream,
+
+    /dev/net/tun rw,
+    /etc/qemu/** r,
+    owner @{PROC}/*/status r,
+
+    /usr/libexec/qemu-bridge-helper rmix,
+  }
-- 
1.7.7