c# – 如何更新现有的共享文件夹属性？

此处定义了所有标志,但请注意,文档未显示SHI1005_FLAGS_ENCRYPT_DATA(0x08000),它确实位于相应的Windows头文件LMERR.H中.

这是一个演示如何在C#控制台应用程序中使用它的示例：

class Program
{
    static void Main(string[] args)
    {
        // get flags of "myshare" share
        var flags = NetShareUtilities.Get1005Flags(null,"myshare");

        // add the "Require encryption" flag
        flags |= SHI1005_FLAGS.SHI1005_FLAGS_ENCRYPT_DATA;

        // save flags (you'll need to have admin rights for this)
        NetShareUtilities.Set1005Flags(null,"myshare",flags);
    }
}

以下是使用P / Invoke访问Windows API的NetShareUtilities类：

public static class NetShareUtilities
{
    [DllImport("netapi32.dll")]
    private extern static int NetShareSetInfo([MarshalAs(UnmanagedType.LPWStr)] string servername,[MarshalAs(UnmanagedType.LPWStr)] string netname,int level,ref SHI1005_FLAGS buf,IntPtr parm_err);

    [DllImport("netapi32.dll")]
    private extern static int NetShareGetInfo([MarshalAs(UnmanagedType.LPWStr)] string servername,out IntPtr bufptr);

    [DllImport("netapi32.dll")]
    private static extern IntPtr NetApiBufferFree(IntPtr Buffer);

    public static SHI1005_FLAGS Get1005Flags(string serverName,string name)
    {
        IntPtr ptr;
        int err = NetShareGetInfo(serverName,name,1005,out ptr);
        if (err != 0)
            throw new Win32Exception(err);

        var flags = (SHI1005_FLAGS)Marshal.ReadInt32(ptr);
        NetApiBufferFree(ptr);
        return flags;
    }

    public static void Set1005Flags(string serverName,string name,SHI1005_FLAGS flags)
    {
        // note: you need to have enough rights to call this
        int err = NetShareSetInfo(serverName,ref flags,IntPtr.Zero);
        if (err != 0)
            throw new Win32Exception(err);
    }
}

[Flags]
public enum SHI1005_FLAGS
{
    // note: all values are taken from LMERR.H
    SHI1005_FLAGS_DFS = 0x0001,SHI1005_FLAGS_DFS_ROOT = 0x0002,// these 3 ones are not strict flags,you'll need to use a mask as specified in the official documentation
    CSC_CACHE_AUTO_REINT = 0x0010,CSC_CACHE_VDO = 0x0020,CSC_CACHE_NONE = 0x0030,SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS = 0x00100,SHI1005_FLAGS_FORCE_SHARED_DELETE = 0x00200,SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING = 0x00400,SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM = 0x00800,SHI1005_FLAGS_FORCE_LEVELII_OPLOCK = 0x01000,SHI1005_FLAGS_ENABLE_HASH = 0x02000,SHI1005_FLAGS_ENABLE_CA = 0x04000,SHI1005_FLAGS_ENCRYPT_DATA = 0x08000,SHI1005_FLAGS_RESERVED = 0x10000,}