[Kimchi-devel] [RESEND][PATCH V2 1/2] qemu user tests: probe the username of qemu process started by libvirt

[shaohef at linux.vnet.ibm.com]

From: ShaoHe Feng <shaohef at linux.vnet.ibm.com>

We want to fix the searchable permission for qemu user.
But we should find the username of qemu process firstly.

searchable permission is a known problem.
We have discussed several times on IRC.

Royce reports the qemu username is different on different distros

Adam, Aline, Royce and I think we can probe qemu username with the
similar method of qemu iso stream support.

Signed-off-by: ShaoHe Feng <shaohef at linux.vnet.ibm.com>
Signed-off-by: Royce Lv <lvroyce at linux.vnet.ibm.com>
Signed-off-by: Aline Manera <alinefm at linux.vnet.ibm.com>
---
 src/kimchi/kvmusertests.py | 63 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 src/kimchi/kvmusertests.py

diff --git a/src/kimchi/kvmusertests.py b/src/kimchi/kvmusertests.py
new file mode 100644
index 0000000..6552dc1
--- /dev/null
+++ b/src/kimchi/kvmusertests.py
@@ -0,0 +1,63 @@
+#
+# Project Kimchi
+#
+# Copyright IBM, Corp. 2013
+#
+# Authors:
+#  ShaoHe Feng <shaohef at linux.vnet.ibm.com>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+import libvirt
+import uuid
+import psutil
+
+SIMPLE_VM_XML = """
+<domain type='kvm'>
+  <name>VM-test</name>
+  <uuid>%s</uuid>
+  <memory unit='KiB'>32768</memory>
+  <os>
+    <type arch='x86_64' machine='pc-0.15'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+</domain>"""
+
+
+class UserTests(object):
+    def __init__(self):
+        self.vm_uuid = uuid.uuid3(uuid.NAMESPACE_DNS, 'vm-test.kimchi.org')
+
+    def probe_user(self):
+        xml = SIMPLE_VM_XML % self.vm_uuid
+        user = 'qemu'
+        try:
+            conn = libvirt.open('qemu:///system')
+            dom = conn.defineXML(xml)
+            dom.create()
+            for p in psutil.process_iter():
+                if self.vm_uuid in p.cmdline:
+                    user = p.username
+                    break
+            dom.destroy()
+            dom.undefine()
+            conn.close()
+            return user
+        except libvirt.libvirtError:
+            return None
+
+if __name__ == '__main__':
+    ut = UserTests()
+    print ut.probe_user()
-- 
1.8.4.2