Question

LsaAddAccountRights: How to marshal SID_IDENTIFIER_AUTHORITY

Asked by: cocojohn

Hi Experts,

does anybody know how to use LsaAddAccountRights in C# ?

This is my declaration:

[System.Runtime.InteropServices.DllImport("advapi32.dll")]
private static extern long LsaAddAccountRights(
  IntPtr PolicyHandle,
  IntPtr AccountSid,
  LSA_UNICODE_STRING UserRights,
  long CountOfRights );

The function requires a SID buffer, so I also have to declare AllocateAndInitializeSid and LookupAccountName...

private static extern bool AllocateAndInitializeSid(
 SID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
 int nSubAuthorityCount,
 long dwSubAuthority0, long dwSubAuthority1,
 long dwSubAuthority2, long dwSubAuthority3,
 long dwSubAuthority4, long dwSubAuthority5,
 long dwSubAuthority6, long dwSubAuthority7,
 out IntPtr pSid );

[System.Runtime.InteropServices.DllImport("advapi32.dll")]
private static extern bool LookupAccountName(
 String lpSystemName,
 String lpAccountName,
 IntPtr Sid,
 ref int cbSid,
 String DomainName,
 ref int cbDomainNameSize,
 IntPtr peUse);

...and SID_IDENTIFIER_AUTHORITY:

[StructLayoutAttribute(LayoutKind.Auto)]
class SID_IDENTIFIER_AUTHORITY {
 [MarshalAsAttribute(UnmanagedType.LPArray)]
 public byte[] Value;
}


At runtime AllocateAndInitializeSid throws an exception:
"System.Runtime.InteropServices.MarshalDirectiveException: parameter #1 cannot be marshalled:
The type Definition contains no layout informationen."

So I have changed the StructLayot-Attribute:

[StructLayoutAttribute(LayoutKind.Sequential)]
class SID_IDENTIFIER_AUTHORITY {
 [MarshalAsAttribute(UnmanagedType.LPArray)]
 public byte[] Value;
}

With that declaration AllocateAndInitializeSid throws a different exception:
"System.TypeLoadException: Field Value in type in type SID_IDENTIFIER_AUTHORITY cannot be marshalled:
This type cannot be marshalled as a structure field."


What's wrong with my declaration?
I can't find a readable example, so every hint would be very great!

greets,
coco

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Asked On
2003-07-11 at 05:33:16ID20675595
Tags

lsaaddaccountrights

Topic

C# Programming Language

Participating Experts
1
Points
200
Comments
5

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Answers

 

by: Nebulus_Posted on 2003-07-11 at 06:26:08ID: 8902254

maybe this will work:

[StructLayoutAttribute(LayoutKind.Sequential)]
class SID_IDENTIFIER_AUTHORITY {
  public byte Value0;
  public byte Value1;
  public byte Value2;
  public byte Value3;
  public byte Value4;
  public byte Value5;
}

 

by: Nebulus_Posted on 2003-07-11 at 06:37:10ID: 8902449

or:

[StructLayoutAttribute(LayoutKind.Sequential)]
class SID_IDENTIFIER_AUTHORITY {
  [MarshalAs(UnmanagedType.ByValArray, SizeConst=6, ArraySubType=UnmanagedType.U1)]
  public byte[] Value;
}

 

by: cocojohnPosted on 2003-07-14 at 01:14:49ID: 8915295

The second one seems to work, now AllocateAndInitializeSid causes a NullReferenceException.

I've tried this one:

SID_IDENTIFIER_AUTHORITY auth = new SID_IDENTIFIER_AUTHORITY();
auth.Value = new byte[6]{0,0,0,0,0,5};
AllocateAndInitializeSid(auth, 1, SECURITY_INTERACTIVE_RID, 0, 0, 0, 0, 0, 0, 0, sid);

An this one:

AllocateAndInitializeSid(new byte[6]{0,0,0,0,0,5}, 1, SECURITY_SERVICE_RID, 0, 0, 0, 0, 0, 0, 0, sid);

Both calls throw a NullReferenceException (or something .NET interprets like that).
If I start the application as a service, GetLastError returns ERROR_FILE_NOT_FOUND. When the I put the same code into a windows application, it returns ERROR_MOD_NOT_FOUND.

 

by: cocojohnPosted on 2003-07-14 at 02:08:20ID: 8915512

Dependency Walker says, MPR.DLL "has an unresolved import due to a missing export function in a delay-load dependent module."
Is that a bug in Windows XP ?

 

by: cocojohnPosted on 2003-07-14 at 03:39:44ID: 8915888

Hello again,

now I've tried ConvertStringSidToSid:

[System.Runtime.InteropServices.DllImport("advapi32.dll")]
private static extern bool ConvertStringSidToSid(
      String StringSid,
      IntPtr Sid
);
...
ConvertStringSidToSid("S-1–5-11", sid)
Console.WriteLine(GetLastError());

The Errorcode is ERROR_INVALID_HANDLE.
What-in-the-world am I doing wrong?

20120131-EE-VQP-002

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