rasdial returns 632 on x64 bit Vista nd Windows XP

[hq4000]

I have a 32-bit application installed on x64 (AMD64) Vista and Windows
XP. The rasdial returns 632 - ERROR_INVALID_S IZE on x64 machine; but
the rasdial behaves properly installing the same 32-bit application on
a 32-bit machine. Any clue?

[Nicholas Paldino [.NET/C# MVP]]

Well, what is your declaration for RasDial?

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

<hq****@hotmail .comwrote in message
news:11******** *************@e 9g2000prf.googl egroups.com...

>I have a 32-bit application installed on x64 (AMD64) Vista and Windows
XP. The rasdial returns 632 - ERROR_INVALID_S IZE on x64 machine; but
the rasdial behaves properly installing the same 32-bit application on
a 32-bit machine. Any clue?

[hq4000]

1. Rasdial:

[DllImport("rasa pi32.dll",CharS et=CharSet.Auto )]
public extern static uint RasDial(
[In]RASDIALEXTENSIO NS lpRasDialExtens ions,
[In]string lpszPhonebook,
[In]RASDIALPARAMS lpRasDialParams ,
uint dwNotifierType,
IntPtr lpvNotifier,
ref IntPtr lphRasConn
);

2. RASDIALPARAMS:

[StructLayout(La youtKind.Sequen tial,CharSet=Ch arSet.Auto)]
public class RASDIALPARAMS
{
public int dwSize=Marshal. SizeOf(typeof(R ASDIALPARAMS));
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szEntryName=nul l;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 28+1)]
public string szPhoneNumber=n ull;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 28+1)]
public string szCallbackNumbe r=null;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szUserName=null ;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szPassword=null ;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 5+1)]
public string szDomain=null;
public int dwSubEntry=0;
public int dwCallbackId=0;
}

3. Usage:

RASDIALPARAMS rdp = new RASDIALPARAMS() ;
rdp.dwSize = Marshal.SizeOf( rdp);
rdp.szEntryName = "Entry Name;
IntPtr notifyHandle = (IntPtr)null;
IntPtr connectionHandl e = (IntPtr)null;
uint dwSucc = RASWrapper.RasD ial(null, null, rdp, 0xFFFFFFFF,
notifyHandle, ref connectionHandl e);

[Nicholas Paldino [.NET/C# MVP]]

What is the definition of RASDIALEXTENSIO NS? Are you using a class to
define it? I'm assuming so, so that you can pass null in.

One thing I definitely notice is the definition of the dwCallbackId
field in the RASDIALPARAMS structure. You are defining it as an int, when
it should be an IntPtr. This would probably explain why the size is wrong
when calling on a 64-bit platform.

Assuming that all the lengths to the strings are correct, this should be
the issue.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

<hq****@hotmail .comwrote in message
news:11******** **************@ y27g2000pre.goo glegroups.com.. .

1. Rasdial:

[DllImport("rasa pi32.dll",CharS et=CharSet.Auto )]
public extern static uint RasDial(
[In]RASDIALEXTENSIO NS lpRasDialExtens ions,
[In]string lpszPhonebook,
[In]RASDIALPARAMS lpRasDialParams ,
uint dwNotifierType,
IntPtr lpvNotifier,
ref IntPtr lphRasConn
);

2. RASDIALPARAMS:

[StructLayout(La youtKind.Sequen tial,CharSet=Ch arSet.Auto)]
public class RASDIALPARAMS
{
public int dwSize=Marshal. SizeOf(typeof(R ASDIALPARAMS));
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szEntryName=nul l;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 28+1)]
public string szPhoneNumber=n ull;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 28+1)]
public string szCallbackNumbe r=null;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szUserName=null ;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=2 56+1)]
public string szPassword=null ;
[MarshalAs(Unman agedType.ByValT Str,SizeConst=1 5+1)]
public string szDomain=null;
public int dwSubEntry=0;
public int dwCallbackId=0;
}

3. Usage:

RASDIALPARAMS rdp = new RASDIALPARAMS() ;
rdp.dwSize = Marshal.SizeOf( rdp);
rdp.szEntryName = "Entry Name;
IntPtr notifyHandle = (IntPtr)null;
IntPtr connectionHandl e = (IntPtr)null;
uint dwSucc = RASWrapper.RasD ial(null, null, rdp, 0xFFFFFFFF,
notifyHandle, ref connectionHandl e);

[hq4000]

Following are my original definition. With your suggestion, I changed
int in 2. 4. and 5. for IntPtr; and I changed uint in 4. and 5. for
UIntPtr. But still RasDial still returns 632.

4.RASDIALEXTENS IONS

[StructLayout(La youtKind.Sequen tial)]
public class RASDIALEXTENSIO NS
{
public readonly int
dwSize=Marshal. SizeOf(typeof(R ASDIALEXTENSION S));
public uint dwfOptions=0;
public int hwndParent=0;
public int reserved=0;
public int reserved1=0;
public RASEAPINFO RasEapInfo=new RASEAPINFO();
}

5.RASEAPINFO:

[StructLayout(La youtKind.Sequen tial)]
public struct RASEAPINFO
{
public uint dwSizeofEapInfo ;
public int pbEapInfo;
}

[Willy Denoyette [MVP]]

<hq****@hotmail .comwrote in message
news:11******** **************@ t8g2000prg.goog legroups.com...

Following are my original definition. With your suggestion, I changed
int in 2. 4. and 5. for IntPtr; and I changed uint in 4. and 5. for
UIntPtr. But still RasDial still returns 632.

4.RASDIALEXTENS IONS

[StructLayout(La youtKind.Sequen tial)]
public class RASDIALEXTENSIO NS
{
public readonly int
dwSize=Marshal. SizeOf(typeof(R ASDIALEXTENSION S));
public uint dwfOptions=0;
public int hwndParent=0;
public int reserved=0;
public int reserved1=0;
public RASEAPINFO RasEapInfo=new RASEAPINFO();
}

5.RASEAPINFO:

[StructLayout(La youtKind.Sequen tial)]
public struct RASEAPINFO
{
public uint dwSizeofEapInfo ;
public int pbEapInfo;
}

Please post your actual definitions.

Willy.

[hq4000]

what you see in 1. 2. 3. 4. 5. is basically everything I have as it
is. And they worked in 32-bit machine, but not the x64 ones. Of
course, I mssed a '}' in 5. Please clarify what you need?

[da5namroi]

[StructLayout(La youtKind.Sequen tial,CharSet=Ch arSet.Auto)]
public class RASDIALPARAMS
{
public int dwSize=Marshal. SizeOf(typeof(R ASDIALPARAMS));

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.RAS_ MaxEntryName
+1)]
public string szEntryName=nul l;

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.RAS_ MaxPhoneNumber
+1)]
public string szPhoneNumber=n ull;

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.RAS_ MaxCallbackNumb er
+1)]
public string szCallbackNumbe r=null;

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.UNLE N
+1)]
public string szUserName=null ;

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.PWLE N
+1)]
public string szPassword=null ;

[MarshalAs(Unman agedType.ByValT Str,SizeConst=( int)RasFieldSiz eConstants.DNLE N
+1)]
public string szDomain=null;
public int dwSubEntry=0;
public IntPtr dwCallbackId= IntPtr.Zero ;
}

[StructLayout(La youtKind.Sequen tial)]
public class RASDIALEXTENSIO NS
{
public readonly int
dwSize=Marshal. SizeOf(typeof(R ASDIALEXTENSION S));
public uint dwfOptions=0;
public int hwndParent=0;
public int reserved=0;
public int reserved1=0;
public RASEAPINFO RasEapInfo=new RASEAPINFO();
}

[DllImport("core dll.dll", CharSet = CharSet.Auto)]
public extern static uint RasDial(
[In]RASDIALEXTENSIO NS lpRasDialExtens ions,
// pointer to function extensions data
[In]string lpszPhonebook, // pointer to full path and file
// name of phone-book file
[In]RASDIALPARAMS lpRasDialParams ,
// pointer to calling parameters data
uint dwNotifierType, // specifies type of RasDial event
handler
IntPtr lpvNotifier, // specifies a handler for RasDial
events
ref IntPtr lphRasConn // pointer to variable to receive
// connection handle
);
public bool DialConnection( )
{
bool bRetVal = false;
m_applicationLo g.AppendLineToL og("DialConnect ion");
// try to reconnect
uint dwSucc = 0;
if (IsAlreadyConne cted() == false)
{
m_applicationLo g.AppendLineToL og("IsAlreadyCo nnected()
== false");
DoHangup();

RASDIALPARAMS rdp = new RASDIALPARAMS() ;
rdp.dwSize = Marshal.SizeOf( rdp);
rdp.szEntryName = m_connectionNam e;
uint dwNotifierType = 0xFFFFFFFF;
dwSucc = RASWrapper.RasD ial(null, null, rdp,
dwNotifierType, m_notifyHandle, ref m_connection);
m_weDialed = true;
}
else
{
m_applicationLo g.AppendLineToL og("IsAlreadyCo nnected()
== true");
m_weDialed = false;
}

if (dwSucc == 0)
{
bRetVal = true;
}

return bRetVal;
}

[hq4000]

in 3. above, out of desperate, I changed:

rdp.dwSize = Marshal.SizeOf( rdp);

to

rdp.dwSize = Marshal.SizeOf( rdp) + 4.

Then the rasdial returns successfully in x64. I don't think this is a
soloution, but do have more to say based on this hint?

[Willy Denoyette [MVP]]

<hq****@hotmail .comwrote in message
news:11******** **************@ v23g2000prn.goo glegroups.com.. .

what you see in 1. 2. 3. 4. 5. is basically everything I have as it
is. And they worked in 32-bit machine, but not the x64 ones. Of
course, I mssed a '}' in 5. Please clarify what you need?

Oh, but I don't see any IntPtr's, the HWND field (hwndParent) in
RASDIALEXTENSIO NS must be an IntPtr (all Handles are IntPtr in .NET), the
same is true for the ULONG_PTR fields in RASDIALEXTENSIO NS (reserved and
reserved1)and RASDIALPARAMS (dwCallbackId ).

Willy.