hi,

i am trying to read acls in windows out of an java program.

Here is my Jna mapping:

/* The security descriptor structure */ // typedef struct { // BYTE Revision; // BYTE Sbz1; // SECURITY_DESCRIPTOR_CONTROL Control; // PSID Owner; // PSID Group; // PACL Sacl; // PACL Dacl; // } SECURITY_DESCRIPTOR, *PSECURITY_DESCRIPTOR;

class SECURITY_DESCRIPTOR extends Structure { public static class PSECURITY_DESCRIPTOR extends SECURITY_DESCRIPTOR implements Structure.ByReference{} byte Revision, Sbz1; SECURITY_DESCRIPTOR_CONTROL Control; public PSID Owner; public PSID Group; public PACL Sacl; }

// BOOL WINAPI GetSecurityDescriptorDacl( // __in PSECURITY_DESCRIPTOR pSecurityDescriptor, // __out LPBOOL lpbDaclPresent, // __out PACL* pDacl, // __out LPBOOL lpbDaclDefaulted // ); boolean GetSecurityDescriptorDacl(PSECURITY_DESCRIPTOR pSecurityDescriptor,IntByReference lpbDaclPresent, PointerByReference pDacl, IntByReference lpbDaclDefaulted);

// BOOL WINAPI GetFileSecurity( // __in LPCTSTR lpFileName, // __in SECURITY_INFORMATION RequestedInformation, // __out_opt PSECURITY_DESCRIPTOR pSecurityDescriptor, IMPLEMENTED AS BYTE[]!!!! // __in DWORD nLength, // __out LPDWORD lpnLengthNeeded // );

boolean GetFileSecurityA(String lpFileName, SECURITY_INFORMATION RequestedInformation, byte[] pSecurityDescriptor, int nLength, IntByReference lpnLengthNeeded);

// typedef DWORD SECURITY_INFORMATION, *PSECURITY_INFORMATION; class SECURITY_INFORMATION extends Structure{ public int SECURITY_INFORMATION =4; }

// typedef WORD SECURITY_DESCRIPTOR_CONTROL, *PSECURITY_DESCRIPTOR_CONTROL; class SECURITY_DESCRIPTOR_CONTROL extends Structure{ public short SECURITY_DESCRIPTOR_CONTROL; } // typedef struct { // BYTE Value[6]; // } SID_IDENTIFIER_AUTHORITY,*PSID_IDENTIFIER_AUTHORITY,*LPSID_IDENTIFIER_AUTHORITY;

class SID_IDENTIFIER_AUTHORITY extends Structure{ public byte[] Value = new byte[6]; }

Here is my java implementation

public class advapi32test {

public static void main(String[] args) {

advapi32.SECURITY_INFORMATION DACL_SECURITY_INFORMATION= new advapi32.SECURITY_INFORMATION();

IntByReference lpnLengthNeeded= new IntByReference(); advapi32.SECURITY_DESCRIPTOR.PSECURITY_DESCRIPTOR pSecDescriptorBuf= new advapi32.SECURITY_DESCRIPTOR.PSECURITY_DESCRIPTOR();

byte[] pSecDescriptorBuf1 = new byte[lpnLengthNeeded.getValue()];

//System.out.println("pSecDescriptorBuf size: " +pSecDescriptorBuf.size()); boolean result3=advapi32.INSTANCE.GetFileSecurityA("E:/test.txt", DACL_SECURITY_INFORMATION, pSecDescriptorBuf1, lpnLengthNeeded.getValue(), lpnLengthNeeded);

IntByReference lpbDaclPresent = new IntByReference(); PointerByReference pDacl = new PointerByReference(); IntByReference lpbDaclDefaulted = new IntByReference(); boolean result4 = GetSecurityDescriptorDacl((PSECURITY_DESCRIPTOR) pSecDescriptorBuf1, lpbDaclPresent, pDacl, lpbDaclDefaulted);

Now i'm having the problem that GetFileSecurityA returns a byte[] instead of an pointer to an SECURITY_DESCRIPTOR. Has anyone a solution out there? Should i defiine the Jna Interface as byte[]?

thanks for help