C＃ - Windows Server 2008およびIIS7上のNetApi32.dllからのNetUseAdd

Question

NetUseAddを使用してアプリケーションに必要な共有を追加しようとしています。私のコードはこのように見えます。これは、当社のサーバー2003のボックス上で正常に動作します

USE_INFO_2 info = new USE_INFO_2(); 
info.ui2_local = null; 
info.ui2_asg_type = 0xFFFFFFFF; 
info.ui2_remote = remoteUNC; 
info.ui2_username = username; 
info.ui2_password = Marshal.StringToHGlobalAuto(password); 
info.ui2_domainname = domainName; 

IntPtr buf = Marshal.AllocHGlobal(Marshal.SizeOf(info)); 

try 
{ 
    Marshal.StructureToPtr(info, buf, true); 

    uint paramErrorIndex; 
    uint returnCode = NetUseAdd(null, 2, buf, out paramErrorIndex); 

    if (returnCode != 0) 
    { 
     throw new Win32Exception((int)returnCode); 
    } 
} 
finally 
{ 
    Marshal.FreeHGlobal(buf); 
} 

[DllImport("NetApi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] 
internal static extern uint NetUseAdd(
    string UncServerName, 
    uint Level, 
    IntPtr Buf, 
    out uint ParmError); 

...。しかし、Server 2008とIIS7に移行しようとすると、これはもう機能しません。リベラルなロギングを通じて、私はそれが行にぶら下がっていることがわかりましたMarshal.StructureToPtr(info, buf, true);

私はこれがなぜ私が詳細情報を探すかもし​​れないか教えてくれる理由が全くわからないのですか？

Answer 1

理由がある：あなたはPを引っ張っ

/署名をオフpinvoke.netを呼び出すと、あなたはそれを検証しませんでした。最初にこのp/invokeサンプルコードを書いたばかは、自分が何をやっていたのか分からず、32ビットシステムでは動作しますが、64ビットシステムでは動作しません。彼は何とか非常にシンプルなp/invokeの署名をいくつかの驚くほど複雑な混乱に変え、ネット上で野火のように広がった。

[DllImport("NetApi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] 
    public static extern uint NetUseAdd(
     string UncServerName, 
     UInt32 Level, 
     ref USE_INFO_2 Buf, 
     out UInt32 ParmError 
     ); 

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 
    public struct USE_INFO_2 
    { 
     public string ui2_local; 
     public string ui2_remote; 
     public string ui2_password; 
     public UInt32 ui2_status; 
     public UInt32 ui2_asg_type; 
     public UInt32 ui2_refcount; 
     public UInt32 ui2_usecount; 
     public string ui2_username; 
     public string ui2_domainname; 
    } 

そして、あなたのコードは次のようになります：

正しい署名がある

USE_INFO_2 info = new USE_INFO_2(); 
info.ui2_local = null; 
info.ui2_asg_type = 0xFFFFFFFF; 
info.ui2_remote = remoteUNC; 
info.ui2_username = username; 
info.ui2_password = password; 
info.ui2_domainname = domainName;  

uint paramErrorIndex; 
uint returnCode = NetUseAdd(null, 2, ref info, out paramErrorIndex); 

if (returnCode != 0) 
{ 
    throw new Win32Exception((int)returnCode); 
} 

希望、これはいくつかの助けでした。私はちょうど半日を過ごしました深刻なリモートデバッグ誰かが何が起こっていたのか理解しようとしているゴミ箱のコードをデバッグしました。

Answer 2

構造体にはどのようなレイアウトがありますか？私はUSE_INFO_2が[StructLayout（LayoutKind.Sequential、CharSet = CharSet.Unicode）]である必要があると信じています。

また、Marshal.StructureToPtrを必要とするのではなく、refで構造体を渡してみましたか？

Answer 3

良い仕事！私は窓のエクスプローラで見ることが何も得られなかった。数日後、ShellNotificationが私の心に入った。以前はファイルアイコンの関連付けに使用していました。そして、私が思い出したように、NetShareを追加するトリガーもありました。はい、そうです！

その他のNetShareを追加するには、shell32.dllからSHChangeNotifyを実行する必要があります。

ShellNotification.NotifyCreateDrive(info.ui2_local); 

そして、これは私はそれのために使用されるクラスです。

public class ShellNotification 
{  
    [DllImport("shell32.dll")] 
    private static extern void SHChangeNotify(
     UInt32 wEventId, 
     UInt32 uFlags, 
     IntPtr dwItem1, 
     IntPtr dwItem2); 

    // Notify shell of change of file associations. 
    public static void NotifyOfChange() 
    { 
     SHChangeNotify(
      (uint)ShellChangeNotificationEvents.SHCNE_ASSOCCHANGED, 
      (uint)(ShellChangeNotificationFlags.SHCNF_IDLIST | ShellChangeNotificationFlags.SHCNF_FLUSHNOWAIT), 
      IntPtr.Zero, 
      IntPtr.Zero); 
    } 

    internal static void NotifyCreateDrive(string path) //path = "M:" 
    { 
     IntPtr strPtr = Marshal.StringToHGlobalUni(path); 

     //A folder on the local computer is being shared via the network. SHCNF_IDLIST or SHCNF_PATHW must be specified in uFlags. dwItem1 contains the folder that is being shared. dwItem2 is not used and should be NULL. 
     SHChangeNotify(
      (uint)ShellChangeNotificationEvents.SHCNE_NETSHARE, 
      (uint)(ShellChangeNotificationFlags.SHCNF_IDLIST | ShellChangeNotificationFlags.SHCNF_PATHW), 
      strPtr, 
      IntPtr.Zero); 

     //also, you need to make sure to free the unmanaged memory: 
     Marshal.FreeHGlobal(strPtr); 
    } 

    [Flags] 
    private enum ShellChangeNotificationEvents : uint 
    { 
     //The name of a nonfolder item has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the previous PIDL or name of the item. dwItem2 contains the new PIDL or name of the item. 
     SHCNE_RENAMEITEM = 0x00000001, 
     //A nonfolder item has been created. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that was created. dwItem2 is not used and should be NULL. 
     SHCNE_CREATE = 0x00000002, 
     //A nonfolder item has been deleted. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that was deleted. dwItem2 is not used and should be NULL. 
     SHCNE_DELETE = 0x00000004, 
     //A folder has been created. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that was created. dwItem2 is not used and should be NULL. 
     SHCNE_MKDIR = 0x00000008, 
     //A folder has been removed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that was removed. dwItem2 is not used and should be NULL. 
     SHCNE_RMDIR = 0x00000010, 
     //Storage media has been inserted into a drive. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that contains the new media. dwItem2 is not used and should be NULL. 
     SHCNE_MEDIAINSERTED = 0x00000020, 
     //Storage media has been removed from a drive. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive from which the media was removed. dwItem2 is not used and should be NULL. 
     SHCNE_MEDIAREMOVED = 0x00000040, 
     //A drive has been removed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that was removed. dwItem2 is not used and should be NULL. 
     SHCNE_DRIVEREMOVED = 0x00000080, 
     //A drive has been added. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that was added. dwItem2 is not used and should be NULL. 
     SHCNE_DRIVEADD = 0x00000100, 
     //A folder on the local computer is being shared via the network. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that is being shared. dwItem2 is not used and should be NULL. 
     SHCNE_NETSHARE = 0x00000200, 
     //A folder on the local computer is no longer being shared via the network. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that is no longer being shared. dwItem2 is not used and should be NULL. 
     SHCNE_NETUNSHARE = 0x00000400, 
     //The attributes of an item or folder have changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item or folder that has changed. dwItem2 is not used and should be NULL. 
     SHCNE_ATTRIBUTES = 0x00000800, 
     //The contents of an existing folder have changed, but the folder still exists and has not been renamed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that has changed. dwItem2 is not used and should be NULL. If a folder has been created, deleted, or renamed, use SHCNE_MKDIR, SHCNE_RMDIR, or SHCNE_RENAMEFOLDER, respectively, instead. 
     SHCNE_UPDATEDIR = 0x00001000, 
     //An existing nonfolder item has changed, but the item still exists and has not been renamed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that has changed. dwItem2 is not used and should be NULL. If a nonfolder item has been created, deleted, or renamed, use SHCNE_CREATE, SHCNE_DELETE, or SHCNE_RENAMEITEM, respectively, instead. 
     SHCNE_UPDATEITEM = 0x00002000, 
     //The computer has disconnected from a server. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the server from which the computer was disconnected. dwItem2 is not used and should be NULL. 
     SHCNE_SERVERDISCONNECT = 0x00004000, 
     //An image in the system image list has changed. SHCNF_DWORD must be specified in uFlags. dwItem1 contains the index in the system image list that has changed. dwItem2 is not used and should be NULL. 
     SHCNE_UPDATEIMAGE = 0x00008000, 
     //A drive has been added and the Shell should create a new window for the drive. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that was added. dwItem2 is not used and should be NULL. 
     SHCNE_DRIVEADDGUI = 0x00010000, 
     //The name of a folder has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the previous pointer to an item identifier list (PIDL) or name of the folder. dwItem2 contains the new PIDL or name of the folder. 
     SHCNE_RENAMEFOLDER = 0x00020000, 
     //The amount of free space on a drive has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive on which the free space changed. dwItem2 is not used and should be NULL. 
     SHCNE_FREESPACE = 0x00040000, 
     //Not currently used. 
     SHCNE_EXTENDED_EVENT = 0x04000000, 
     //A file type association has changed. SHCNF_IDLIST must be specified in the uFlags parameter. dwItem1 and dwItem2 are not used and must be NULL. 
     SHCNE_ASSOCCHANGED = 0x08000000, 
     //Specifies a combination of all of the disk event identifiers. 
     SHCNE_DISKEVENTS = 0x0002381F, 
     //Specifies a combination of all of the global event identifiers. 
     SHCNE_GLOBALEVENTS = 0x0C0581E0, 
     //All events have occurred. 
     SHCNE_ALLEVENTS = 0x7FFFFFFF, 
     //The specified event occurred as a result of a system interrupt. As this value modifies other event values, it cannot be used alone. 
     SHCNE_INTERRUPT = 0x80000000 
    } 

    private enum ShellChangeNotificationFlags 
    { 
     //dwItem1 and dwItem2 are the addresses of ITEMIDLIST structures that represent the item(s) affected by the change. Each ITEMIDLIST must be relative to the desktop folder. 
     SHCNF_IDLIST = 0x0000, 
     //dwItem1 and dwItem2 are the addresses of null-terminated strings of maximum length MAX_PATH that contain the full path names of the items affected by the change. 
     SHCNF_PATHA = 0x0001, 
     //dwItem1 and dwItem2 are the addresses of null-terminated strings that represent the friendly names of the printer(s) affected by the change. 
     SHCNF_PRINTERA = 0x0002, 
     //The dwItem1 and dwItem2 parameters are DWORD values. 
     SHCNF_DWORD = 0x0003, 
     //like SHCNF_PATHA but unicode string 
     SHCNF_PATHW = 0x0005, 
     //like SHCNF_PRINTERA but unicode string 
     SHCNF_PRINTERW = 0x0006, 
     //? 
     SHCNF_TYPE = 0x00FF, 
     //The function should not return until the notification has been delivered to all affected components. As this flag modifies other data-type flags, it cannot by used by itself. 
     SHCNF_FLUSH = 0x1000, 
     //The function should begin delivering notifications to all affected components but should return as soon as the notification process has begun. As this flag modifies other data-type flags, it cannot by used by itself. 
    } 
} 

私は他の人が歓迎を手渡ししたいと考えています。