CA-142238: Fix parsing lvmohba probe xml

With xs64bit, sr-probe has attributes like supported_speeds
which have comma separated values that break the exising parser.

This patch ensures that we don't break the required xml even if the
exception contains additional tags with comma separated values.

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Reviewed-by: Mate Lakat <mate.lakat@citrix.com>

GitHub: closes #23 on xenserver/xencert

XenCert/StorageHandlerUtil.py

@@ -344,7 +344,10 @@ def GetListPortalScsiIdForIqn(session, server, targetIqn, chapUser = None, chapP
     XenCertPrint("GetListPortalScsiIdForIqn - returning PortalList: %s." % listPortal)  
     XenCertPrint("GetListPortalScsiIdForIqn - returning SCSIIdList: %s." % listSCSIId)  
     return (listPortal, listSCSIId)
-
+
+def extract_xml_from_exception(e):
+    return ','.join(str(e).split(',')[3:])
+
 # The returned structure are a list of portals, and a list of SCSIIds for the specified IQN. 
 def GetHBAInformation(session):
     try:
@@ -361,7 +364,7 @@ def GetHBAInformation(session):
 	    try:
 		# the target may not return any IQNs
 		# so prepare for it
-		xmlstr = str(e).split(',')[3]
+		xmlstr = extract_xml_from_exception(e)
 		xmlstr = xmlstr.lstrip()
 		xmlstr = xmlstr.lstrip('\'')
 		xmlstr = xmlstr.rstrip()