C#：如何编组 TOKEN_GROUPS 以调用 LogonUserExEx() （或 LsaLogonUser()）

发布于 2024-08-05 22:20:21 字数 1188 浏览 4 评论 0原文

LogonUserExEx() 和 LsaLogonUser() 都接受 PTOKEN_GROUPS pTokenGroups 参数。我无法为此参数正确编组我的结构。

我定义了以下结构：

[StructLayout(LayoutKind.Sequential)]
public struct TOKEN_GROUPS
{
    public UInt32 GroupCount;
    // Followed by this:
    public SID_AND_ATTRIBUTES[] Groups;
}

[StructLayout(LayoutKind.Sequential)]
public struct SID_AND_ATTRIBUTES
{
    public IntPtr Sid;
    public UInt32 Attributes;
}

然后，在我的代码中，我设置如下结构：

win32.TOKEN_GROUPS tg = new win32.TOKEN_GROUPS();
tg.GroupCount = 2;
tg.Groups = new win32.SID_AND_ATTRIBUTES[2];
tg.Groups[0].Attributes = win32.SE_GROUP_ENABLED;
win32.ConvertStringSidToSid("S-1-5-32-546", out (tg.Groups[0].Sid)); // guests TEST
tg.Groups[1].Attributes = win32.SE_GROUP_ENABLED;
win32.ConvertStringSidToSid("S-1-5-32-547", out (tg.Groups[1].Sid)); // power users TEST

这一切似乎都有效（ConvertStringSidToSid 两次都返回 TRUE）。那我想要将其转换为 IntPtr，我可以将其传递给实际的 API 函数。为此，我尝试：

IntPtr pGroups = Marshal.AllocHGlobal(Marshal.SizeOf(tg))

其次是：

Marshal.StructureToPtr(tg, pGroups, false);

但是这里出了问题，因为抛出了“参数不正确”的异常。有谁知道为什么会发生这种情况？非常感谢您的帮助。

原文

Both LogonUserExEx() and LsaLogonUser() accept a PTOKEN_GROUPS pTokenGroups parameter. I am having trouble marshalling my structure correctly for this parameter.

I have the following structures defined:

[StructLayout(LayoutKind.Sequential)]
public struct TOKEN_GROUPS
{
    public UInt32 GroupCount;
    // Followed by this:
    public SID_AND_ATTRIBUTES[] Groups;
}

[StructLayout(LayoutKind.Sequential)]
public struct SID_AND_ATTRIBUTES
{
    public IntPtr Sid;
    public UInt32 Attributes;
}

Then, in my code I am setting up the structure like this:

win32.TOKEN_GROUPS tg = new win32.TOKEN_GROUPS();
tg.GroupCount = 2;
tg.Groups = new win32.SID_AND_ATTRIBUTES[2];
tg.Groups[0].Attributes = win32.SE_GROUP_ENABLED;
win32.ConvertStringSidToSid("S-1-5-32-546", out (tg.Groups[0].Sid)); // guests TEST
tg.Groups[1].Attributes = win32.SE_GROUP_ENABLED;
win32.ConvertStringSidToSid("S-1-5-32-547", out (tg.Groups[1].Sid)); // power users TEST

This all seems to work (the ConvertStringSidToSid returns TRUE both times). Then I want
to turn this into an IntPtr which I can pass to the actual API function. To do this I try:

IntPtr pGroups = Marshal.AllocHGlobal(Marshal.SizeOf(tg))

Followed by:

Marshal.StructureToPtr(tg, pGroups, false);

Something goes awry here however since an exception is thrown with "The Parameter Is Incorrect". Does anyone have an idea why this is happening? Many thanks in advance for your help.

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风吹短裙飘 2024-08-12 22:20:21

您是否尝试过像这样定义TOKEN_GROUPS：

[StructLayout(LayoutKind.Sequential)]
public struct TOKEN_GROUPS
{
    public UInt32 GroupCount;
    // Followed by this:
    [MarshalAs(UnmanagedType.ByValArray)] // <--
    public SID_AND_ATTRIBUTES[] Groups;
}

请参阅：TOKEN_GROUPS

have you tried defining TOKEN_GROUPS like this:

[StructLayout(LayoutKind.Sequential)]
public struct TOKEN_GROUPS
{
    public UInt32 GroupCount;
    // Followed by this:
    [MarshalAs(UnmanagedType.ByValArray)] // <--
    public SID_AND_ATTRIBUTES[] Groups;
}

see: TOKEN_GROUPS

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