MQSeries.net :: View topic - cannot connect to MQ server when i try to impersonate a user

Madhura · Posted: Mon Sep 04, 2017 11:07 pm Post subject:

Hello All,

I am trying to connect to a IBM MQ queue manager using local user created on the system. this MQ queue server is in installed in a different machine but in same network. Server runs on a user called "admin" , i have created a local user with same credentials and trying to impersonate to connect. i can impersonate the user but not able to connect to the MQ server.

Now when I impersonate the user and try to connect I get below connection error. When I run visual studio as a different user (local user), it works but not when I use impersonation.

I am using Win server 2008 R2, IBM MQ client and Server versions are 8.0.0.6

Can anyone help with how to fix this issue?

code to connect IBM MQ Server :

using (new Tools.Impersonator("admin", "MNGNET384321d", "admin@1234"))
{
string userafter = WindowsIdentity.GetCurrent().Name;

MQQueueManager queueManager = null;

queueManager = new MQQueueManager(QueueManagerName, channelName, connectionName);

// queueManager = new MQQueueManager(QueueManagerName,props );

int openOptions = MQC.MQOO_INPUT_AS_Q_DEF | MQC.MQOO_OUTPUT | MQC.MQOO_INQUIRE | MQC.MQOO_FAIL_IF_QUIESCING;
queue = queueManager.AccessQueue(QueueName, openOptions);

int depth = queue.CurrentDepth;

queueMessage = new MQMessage();

queueMessage.Format = MQC.MQFMT_STRING;
queueGetMessageOptions = new MQGetMessageOptions();
queue.Get(queueMessage, queueGetMessageOptions);
strReturn =
queueMessage.ReadString(queueMessage.MessageLength);
queue.Close();

queueManager.Disconnect();
}

Impersonate code: I have added only main connection of impersonation

LogonUser(
userName,
domain,
password,
LOGON32_LOGON_INTERACTIVE,
LOGON32_PROVIDER_DEFAULT,
ref token)

Error it throws -

System.TypeInitializationException was unhandled
HResult=-2146233036
Message=The type initializer for 'IBM.WMQ.MQQueueManager' threw an exception.
Source=amqmdnet
TypeName=IBM.WMQ.MQQueueManager
StackTrace:
at IBM.WMQ.MQQueueManager..ctor(String queueManagerName, String Channel, String ConnName)
at MQExample.MQTest.ConnectMQ(String strQueueManagerName, String strQueueName, String strChannelInfo) in D:\Adidas\MQExample\MQExample\MQExample\MQTest.cs:line 83
at MQExample.Form1.button1_Click(Object sender, EventArgs e) in D:\Adidas\MQExample\MQExample\MQExample\Form1.cs:line 33
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at MQExample.Program.Main() in D:\Adidas\MQExample\MQExample\MQExample\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
HResult=-2146232828
Message=Exception has been thrown by the target of an invocation.
Source=mscorlib
StackTrace:
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture)
at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams)
at IBM.WMQ.CommonServices.CreateCommonServices()
at IBM.WMQ.CommonServices.TraceConstructor(String objectId, String sccsid)
at IBM.WMQ.Nmqi.NmqiEnvironment..ctor(NmqiPropertyHandler nmqiPropertyHandler)
at IBM.WMQ.Nmqi.NmqiFactory.GetInstance(NmqiPropertyHandler properties)
at IBM.WMQ.MQQueueManager..cctor()
InnerException:
HResult=-2146232828
Message=Exception has been thrown by the target of an invocation.
Source=amqmdnet
StackTrace:
at IBM.WMQ.MQCommonServices..ctor()
InnerException:
HResult=-2146233088
Message=Failed to load mqe.dll from folder C:\Program Files\IBM\WebSphere MQ\bin\
Source=amqmdnet
StackTrace:
at IBM.WMQ.Nmqi.NativeManager.InitializeNativeApis(String mode)
InnerException: