AcquireCredentialsHandle win32 api 函数需要 C# 签名答案

【问题标题】：Need a C# signature for AcquireCredentialsHandle win32 api functionAcquireCredentialsHandle win32 api 函数需要 C# 签名
【发布时间】：2009-08-07 11:39:31
【问题描述】：

不知何故，我为这个 api 调用提供了一个签名，但是这个调用没有按预期的方式工作。一些重要的数据结构没有正确填充，因此我没有得到预期的输出。我使用的签名是：

[DllImport("secur32.dll", SetLastError = true)]
    static extern ulong AcquireCredentialsHandle(
        string pszPrincipal,
        string pszPackage,
        ulong fCredentialsUse,
        IntPtr pvLogonID,
        ref SEC_WINNT_AUTH_IDENTITY pAuthData, 
        //IntPtr pAuthData,
        IntPtr pGetKeyFn,
        IntPtr pGetArgumentKey,
        //ref SecHandle phCredential,
        IntPtr phCredential,
        ref TimeStamp ptsExpiry);

请忽略 cmets。

我用作参考的基于 c 的函数调用可以在 here 找到。我想知道我做错了什么...

【问题讨论】：

标签： c# winapi sspi

【解决方案1】：

你试过this at pinvoke.net吗？

【讨论】：

【解决方案2】：

API1 文档指出，上面的结构似乎不正确

typedef struct _SecHandle {
  ULONG_PTR       dwLower;
  ULONG_PTR       dwUpper;
} SecHandle, * PSecHandle;

这意味着上面的代码可以在 32 位上运行，但应该是

[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_HANDLE
{
    public IntPtr LowPart;
    public IntPtr HighPart;
    public SECURITY_HANDLE(int dummy)
    {
        LowPart = HighPart = IntPtr.Zero;
    }
};

这适用于 32 位和 64 位模式。

其余的和以前一样

[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_INTEGER
{
    public uint LowPart;
    public int HighPart;
    public SECURITY_INTEGER(int dummy)
    {
        LowPart = 0;
        HighPart = 0;
    }
};

[DllImport("secur32.dll", SetLastError=true)]
  static extern int AcquireCredentialsHandle(
    string pszPrincipal, //SEC_CHAR*
    string pszPackage, //SEC_CHAR* //"Kerberos","NTLM","Negotiative"
    int fCredentialUse,
    IntPtr PAuthenticationID,//_LUID AuthenticationID,//pvLogonID,//PLUID
    IntPtr pAuthData,//PVOID
    int pGetKeyFn, //SEC_GET_KEY_FN
    IntPtr pvGetKeyArgument, //PVOID
    ref SECURITY_HANDLE phCredential, //SecHandle //PCtxtHandle ref
    ref SECURITY_INTEGER ptsExpiry); //PTimeStamp //TimeStamp ref

您还应该小心释放句柄，因为它是非托管的。

【讨论】：

【解决方案3】：

来自pInvoke.net

[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_INTEGER
{
    public uint LowPart;
    public int HighPart;
    public SECURITY_INTEGER(int dummy)
    {
    LowPart = 0;
    HighPart = 0;
    }
};

[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_HANDLE
{
    public uint LowPart;
    public uint HighPart;
    public SECURITY_HANDLE(int dummy)
    {
    LowPart = HighPart = 0;
    }
};


[DllImport("secur32.dll", SetLastError=true)]
  static extern int AcquireCredentialsHandle(
    string pszPrincipal, //SEC_CHAR*
    string pszPackage, //SEC_CHAR* //"Kerberos","NTLM","Negotiative"
    int fCredentialUse,
    IntPtr PAuthenticationID,//_LUID AuthenticationID,//pvLogonID, //PLUID
    IntPtr pAuthData,//PVOID
    int pGetKeyFn, //SEC_GET_KEY_FN
    IntPtr pvGetKeyArgument, //PVOID
    ref SECURITY_HANDLE phCredential, //SecHandle //PCtxtHandle ref
    ref SECURITY_INTEGER ptsExpiry); //PTimeStamp //TimeStamp ref

【讨论】：