Great; I hope you understand why this is working
)
Another remark, don't do this...
private const int LOGON32_LOGON_INTERACTIVE = 9;
LOGON32_LOGON_INTERACTIVE is 3 and carved in stone....
change the declaration into:
private const int LOGON32_LOGON_NEW_CREDENTIALS = 9;
and stay good friends with those who have to maintain this code.
Willy.
| problem solved, after changing values for the
|
| private const int LOGON32_LOGON_INTERACTIVE = 2;
| private const int LOGON32_PROVIDER_DEFAULT = 0;
|
| to
|
| private const int LOGON32_LOGON_INTERACTIVE = 9;
| private const int LOGON32_PROVIDER_DEFAULT = 3;
|
| following code is working, anyway thanx for help to everyone.
|
| Best Regards
| Parveen Beniwal
|
| Parv wrote:
| > Thanx, I had logoff but not restarted the system. Not its working after
| > system restart. But now i am facing new problem
| >
| > Logon failure: unknown user name or bad password
| >
| > while using the following code to impersonate
| >
| > public class Impersonator : IDisposable
| > {
| > public Impersonator(string userName,string domainName,string
| > password)
| > {
| > ImpersonateValidUser(userName, domainName, password);
| > }
| >
| > public void Dispose()
| > {
| > UndoImpersonation();
| > }
| >
| > [DllImport("advapi32.dll", SetLastError = true)]
| > private static extern int LogonUser(string lpszUserName,string
| > lpszDomain,string lpszPassword,int dwLogonType,int dwLogonProvider,ref
| > IntPtr phToken);
| >
| > [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError
| > = true)]
| > private static extern int DuplicateToken(IntPtr hToken,int
| > impersonationLevel,ref IntPtr hNewToken);
| >
| > [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError
| > = true)]
| > private static extern bool RevertToSelf();
| >
| > [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
| > private static extern bool CloseHandle(IntPtr handle);
| >
| > private const int LOGON32_LOGON_INTERACTIVE = 2;
| > private const int LOGON32_PROVIDER_DEFAULT = 0;
| >
| > private void ImpersonateValidUser(string userName,string
| > domain,string password)
| > {
| > WindowsIdentity tempWindowsIdentity = null;
| > IntPtr token = IntPtr.Zero;
| > IntPtr tokenDuplicate = IntPtr.Zero;
| >
| > try
| > {
| > if (RevertToSelf())
| > {
| > if
| >
(LogonUser(userName,domain,password,LOGON32_LOGON_INTERACTIVE,LOGON32_PROVIDER_DEFAULT,ref
| > token) != 0)
| > {
| > if (DuplicateToken(token, 2, ref
| > tokenDuplicate) != 0)
| > {
| > tempWindowsIdentity = new
| > WindowsIdentity(tokenDuplicate);
| > impersonationContext =
| > tempWindowsIdentity.Impersonate();
| > }
| > else
| > {
| > throw new
| > Win32Exception(Marshal.GetLastWin32Error());
| > }
| > }
| > else
| > {
| > throw new
| > Win32Exception(Marshal.GetLastWin32Error());
| > }
| > }
| > else
| > {
| > throw new
| > Win32Exception(Marshal.GetLastWin32Error());
| > }
| > }
| > finally
| > {
| > if (token != IntPtr.Zero)
| > {
| > CloseHandle(token);
| > }
| > if (tokenDuplicate != IntPtr.Zero)
| > {
| > CloseHandle(tokenDuplicate);
| > }
| > }
| > }
| >
| > private void UndoImpersonation()
| > {
| > if (impersonationContext != null)
| > {
| > impersonationContext.Undo();
| > }
| > }
| > private WindowsImpersonationContext impersonationContext =
| > null;
| > }
| >
| >
| > and using as below :
| >
| > using (new Impersonator("administrator", "project.com", "pass"))
| > {
| > //Never executed.
| >
| > System.IO.File.Copy(@"C:\temp\UsingUIExecutingJob.txt",
| > @"\\Mine\cdrv\test.txt", true);
| > }
| >
| > I am getting error in constructor and copy statement is never
| > executed. What may be reason ?
| >
| > Regards
| > Parveen Beniwal
| >
| >
| > Willy Denoyette [MVP] wrote:
| > > Windows 2000 needs this privilege in order to impersonate, more
exactly,
| > > LogonUser API can only be called when the caller's identity has this
| > > privilege enabled. Did you logout followed by a login after you
changed the
| > > accounts privilege?
| > > You will have to post your code or a complete sample that illustrates
the
| > > issue, whithout this it's nearly impossible to help you out.
| > >
| > > Willy.
| > >
| > > | > > | thanx, let me elaborate my case. I am working in a domain
environment.
| > > | I am working on my System named Parveen. I have to copy a file to
other
| > > | system in other domain named project.com. I have have added myself
in
| > > | Act as part of operating System in local security policy of my
system
| > > | but it still not working. I am in confusion that i have to give this
| > > | permission on mysystem Parveen, Or MyDomain in which i am working or
on
| > > | the target domain. I am working on Windows 2000 Professional.
| > > |
| > > | Best Regards
| > > | Parveen Beniwal
| > > | Nicholas Paldino [.NET/C# MVP] wrote:
| > > | > In order to do this, the user making the call has to have the
| > > | > SeTcbPrivilege priviledge set. Your administrator has to set this
up.
| > > | >
| > > | > Hope this helps.
| > > | >
| > > | >
| > > | > --
| > > | > - Nicholas Paldino [.NET/C# MVP]
| > > | > - (e-mail address removed)
| > > | >
| > > | > | > > | > >I am impersoanting a user to an other domain. But while doing so
i am
| > > | > > getting
| > > | > >
| > > | > > A required privilege is not held by the client
| > > | > >
| > > | > > exception. I have tried with aal possible usernames and
passwords but
| > > | > > didn't get success. I am getting same error if i am enetring
blank
| > > user
| > > | > > and password. What i am doing wrong ?
| > > | > >
| > > |
|
