private void AdjustPrivilege(bool enable)
{
using (WindowsIdentity currentIdentity = WindowsIdentity.GetCurrent(TokenAccessLevels.Query | TokenAccessLevels.AdjustPrivileges))
{
if (currentIdentity != null)
{
IntPtr hToken = currentIdentity.Token;
TokenPrivileges newPrivilege = new TokenPrivileges();
TokenPrivileges mOldPrivilege = new TokenPrivileges();
newPrivilege.PrivilegeCount = 1;
newPrivilege.Luid = Filesystem.NativeMethods.LongToLuid(_mPrivilege.LookupLuid());
newPrivilege.Attributes = (uint)(enable ? 2 : 0); // 2 = SePrivilegeEnabled;
uint length;
if (!NativeMethods.AdjustTokenPrivileges(hToken, false, ref newPrivilege, (uint) Marshal.SizeOf(mOldPrivilege), out mOldPrivilege, out length))
NativeError.ThrowException(Marshal.GetLastWin32Error());
// If no privilege was changed, we don't want to reset it.
if (mOldPrivilege.PrivilegeCount == 0)
_mPrivilege = null;
}
}
}
internal static extern bool AdjustTokenPrivileges(IntPtr tokenHandle, [MarshalAs(UnmanagedType.Bool)] bool disableAllPrivileges, ref TokenPrivileges newState, uint bufferLength, out TokenPrivileges previousState, out uint returnLength);
internal static extern bool AdjustTokenPrivileges(IntPtr tokenHandle, [MarshalAs(UnmanagedType.Bool)] bool disableAllPrivileges, ref TokenPrivileges newState, uint bufferLength, out TokenPrivileges previousState, out uint returnLength);