使用 Read/Write 检查连接到 NAS 服务器。模拟失败

Question

我正在开发一个程序，该程序必须检查是否存在与 NAS 的连接以及是否可以从中写入和读取数据。检查连接没有问题。

我运行在 Windows 服务器 2012 上并且知道来自 NAS 的凭据。我尝试使用这些凭据进行模拟，但这没有用。我总是遇到同样的错误。用户名或密码不正确。但是，当我使用相同的凭据连接 windows 资源管理器时，它会起作用。

这是我的 DLL 导入和必要的变量

[DllImport("advapi32.dll", SetLastError = true)]
    public static extern bool LogonUser(String lpszUsername, String lpszDomain,
    String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);

// Variables
private IntPtr m_Token;
private WindowsImpersonationContext m_Context = null;
private string m_Domain;
private string m_Password;
private string m_Username;

m_Domain与本地域不同

这是真实的模仿

            m_Token = IntPtr.Zero;
            bool logonSuccessfull = LogonUser(
               m_Username,
               m_Domain,
               m_Password,
               (int)LOGON32_TYPE_NETWORK,
               (int)LOGON32_PROVIDER_WINNT50,
               ref m_Token);
            if (logonSuccessfull == false)
            {
                int error = Marshal.GetLastWin32Error();
                throw new Win32Exception(error);
            }
            WindowsIdentity identity = new WindowsIdentity(m_Token);
            m_Context = identity.Impersonate();

LOGON32_TYPE_NETWORK等于3， LOGON32_PROVIDER_WINNT50 等于 3

此代码以管理员权限执行。

这是抛出的错误：

System.ComponentModel.Win32Exception (0x80004005): The user name or password is incorrect

此错误在

处抛出

if (logonSuccessfull == false)
{
     int error = Marshal.GetLastWin32Error();
     throw new Win32Exception(error);
}

还有别的方法吗？或者必须使用其他 LogonType 或 LogonProvider？

这些我也试过了，但都不适合我。

private const int LOGON32_PROVIDER_DEFAULT = 0;
private const int LOGON32_LOGON_INTERACTIVE = 2;
private const int LOGON32_TYPE_NEW_CREDENTIALS = 9;

当使用 LOGON32_TYPE_NEW_CREDENTIALS 时它不会抛出错误但是模拟的用户根本没有改变。

Answer 1

我可以通过使用网络凭证和 mpr.dll

来解决问题

[DllImport("mpr.dll")]
private static extern int WNetAddConnection2(NetResource netResource,
     string password, string username, int flags);
[DllImport("mpr.dll")]
     private static extern int WNetCancelConnection2(string name, int flags, bool force);
[StructLayout(LayoutKind.Sequential)]
public class NetResource
{
  public ResourceScope Scope;
  public ResourceType ResourceType;
  public ResourceDisplaytype DisplayType;
  public int Usage;
  public string LocalName;
  public string RemoteName;
  public string Comment;
  public string Provider;
}
public enum ResourceScope : int
{
  Connected = 1,
  GlobalNetwork,
  Remembered,
  Recent,
  Context
};

public enum ResourceType : int
{
  Any = 0,
  Disk = 1,
  Print = 2,
  Reserved = 8,
}

public enum ResourceDisplaytype : int
{
  Generic = 0x0,
  Domain = 0x01,
  Server = 0x02,
  Share = 0x03,
  File = 0x04,
  Group = 0x05,
  Network = 0x06,
  Root = 0x07,
  Shareadmin = 0x08,
  Directory = 0x09,
  Tree = 0x0a,
  Ndscontainer = 0x0b
}

void ConnectToNas(string username, string password, string networkName){
     NetworkCredential cred = new NetworkCredential(username, password);

     var netResource = new NetResource
     {
          Scope = ResourceScope.GlobalNetwork,
          ResourceType = ResourceType.Disk,
          DisplayType = ResourceDisplaytype.Share,
          RemoteName = networkName
     };

     var result = WNetAddConnection2(netResource, credentials.Password,userName,0);

     if (result != 0)
     {
          throw new Win32Exception(result, "Error while connection to NAS");
     }
}

关闭连接：

void CloseConnection(string networkName){
     WNetCancelConnection2(networkName, 0, true);
}

通过这种方式，我能够连接到 NAS 并通过向其写入文件、读取它然后删除它来检查它是否可读和可写。

使用 Read/Write 检查连接到 NAS 服务器。模拟失败

Connection to NAS Server with Read/Write Check. Impersonation Fails

c#

nas