[Libvirt-cim] [PATCH] Add default network card name existence check

[Xu Wang]

Default network card name was set as 'eth1' or 'em1'. But when os has no network card named like that, FAIL
would occured. This patch added check if default name exists in the network card list and if not, change
the default value into the 1st one in the list.

Signed-off-by: Xu Wang <cngesaint at gmail.com>
---
 .../27_definesystem_macvtap_dev.py                 |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/suites/libvirt-cim/cimtest/VirtualSystemManagementService/27_definesystem_macvtap_dev.py b/suites/libvirt-cim/cimtest/VirtualSystemManagementService/27_definesystem_macvtap_dev.py
index 36bf52f..7832e90 100644
--- a/suites/libvirt-cim/cimtest/VirtualSystemManagementService/27_definesystem_macvtap_dev.py
+++ b/suites/libvirt-cim/cimtest/VirtualSystemManagementService/27_definesystem_macvtap_dev.py
@@ -30,6 +30,7 @@
 #
 
 import sys
+import os
 from CimTest.Globals import logger
 from CimTest.ReturnCodes import FAIL, PASS, SKIP
 from VirtLib import utils
@@ -132,6 +133,14 @@ def main():
     else:
         source_dev = "eth1"
 
+    # The default device name may not named 'eth1' or 'em1' so this case would
+    # return FAIL. The following code will check if default device exists in
+    # the network card list and if not, source_dev will be changed into the 1st
+    # network card in the list.
+    net_info = os.popen('ifconfig').read()
+    if net_info.find(source_dev) == -1:
+        source_dev = net_info.split(' ')[0]
+
     guest_defined = False
 
     try:
-- 
1.7.1