Question

我已经以某种方式出现了这个api呼叫的签名，但是呼叫不能以预期的方式工作。一些重要的数据结构没有正确填充，因此我没有获得预期的输出。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);

请忽略评论。

我可以找到用于参考的基于c的函数调用here。我想知道我做错了什么......

Answer 1

你试过this at pinvoke.net吗？

Answer 2

上面的结构似乎不正确，因为文档声明的API 1

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。

其余的将与之前相同

[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

你也应该小心释放句柄，因为它是不受管理的。

Answer 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

需要AcquireCredentialsHandle win32 api函数的C＃签名

3 个答案: