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/* Copyright (c) 2016 Adam Marcionek, All Rights Reserved
*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
package com.sun.jna.platform.win32;
import java.util.Arrays;
import java.util.List;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.Structure.FieldOrder;
import com.sun.jna.Union;
import com.sun.jna.win32.W32APITypeMapper;
/**
* Ported from Ntifs.h
* Microsoft Windows WDK 10
* @author amarcionek[at]gmail.com
*/
public interface Ntifs extends WinDef, BaseTSD {
// Defined in winnt.h
public int MAXIMUM_REPARSE_DATA_BUFFER_SIZE = 16 * 1024;
// 1 long and 2 shorts aligned on longlong
public int REPARSE_BUFFER_HEADER_SIZE = 8;
public int SYMLINK_FLAG_RELATIVE = 1;
@FieldOrder({"SubstituteNameOffset", "SubstituteNameLength", "PrintNameOffset", "PrintNameLength", "Flags", "PathBuffer"})
public static class SymbolicLinkReparseBuffer extends Structure {
public static class ByReference extends SymbolicLinkReparseBuffer implements Structure.ByReference {
public ByReference() {
}
public ByReference(Pointer memory) {
super(memory);
}
}
/**
* Offset, in bytes, of the substitute name string in the PathBuffer array.
* Note that this offset must be divided by sizeof(WCHAR) to get the array index.
*/
public short SubstituteNameOffset = 0;
/**
* Length, in bytes, of the substitute name string. If this string is NULL-terminated,
* SubstituteNameLength does not include space for the UNICODE_NULL character.
*/
public short SubstituteNameLength = 0;
/**
* Offset, in bytes, of the print name string in the PathBuffer array.
* Note that this offset must be divided by sizeof(WCHAR) to get the array index.
*/
public short PrintNameOffset = 0;
/**
* Length, in bytes, of the print name string. If this string is NULL-terminated,
* PrintNameLength does not include space for the UNICODE_NULL character.
*/
public short PrintNameLength = 0;
/**
* Used to indicate if the given symbolic link is an absolute or relative symbolic link.
* If Flags contains SYMLINK_FLAG_RELATIVE, the symbolic link contained in the PathBuffer
* array (at offset SubstitueNameOffset) is processed as a relative symbolic link; otherwise,
* it is processed as an absolute symbolic link.
*/
public int Flags = 0;
/**
* First character of the path string. This is followed in memory by the remainder of the string.
* The path string contains the substitute name string and print name string. The substitute name
* and print name strings can appear in any order in the PathBuffer. (To locate the substitute
* name and print name strings in the PathBuffer, use the SubstituteNameOffset, SubstituteNameLength,
* PrintNameOffset, and PrintNameLength members.)
* NOTE: MAXIMUM_REPARSE_DATA_BUFFER_SIZE is chosen here based on documentation. Because chars are two
* bytes, the actual array size needs to be divided by 2
*/
public char[] PathBuffer = new char[MAXIMUM_REPARSE_DATA_BUFFER_SIZE / 2];
public static int sizeOf() {
return Native.getNativeSize(MountPointReparseBuffer.class, null);
}
public SymbolicLinkReparseBuffer() {
super(W32APITypeMapper.UNICODE);
}
public SymbolicLinkReparseBuffer(Pointer memory) {
super(memory, Structure.ALIGN_DEFAULT, W32APITypeMapper.UNICODE);
read();
}
public SymbolicLinkReparseBuffer(String substituteName, String printName, int Flags) {
super();
String bothNames = substituteName + printName;
PathBuffer = bothNames.toCharArray();
this.SubstituteNameOffset = 0;
this.SubstituteNameLength = (short) (substituteName.length() * 2);
this.PrintNameOffset = (short) (substituteName.length() * 2);
this.PrintNameLength = (short) (printName.length() * 2);
this.Flags = Flags;
write();
}
public SymbolicLinkReparseBuffer(short SubstituteNameOffset, short SubstituteNameLength, short PrintNameOffset, short PrintNameLength, int Flags, String PathBuffer) {
super();
this.SubstituteNameOffset = SubstituteNameOffset;
this.SubstituteNameLength = SubstituteNameLength;
this.PrintNameOffset = PrintNameOffset;
this.PrintNameLength = PrintNameLength;
this.Flags = Flags;
this.PathBuffer = PathBuffer.toCharArray();
write();
}
/**
* @return the print name in a String
*/
public String getPrintName() {
return String.copyValueOf(PathBuffer, PrintNameOffset / 2, PrintNameLength / 2);
}
/**
* @return the substitute name in a String
*/
public String getSubstituteName() {
return String.copyValueOf(PathBuffer, SubstituteNameOffset / 2, SubstituteNameLength / 2);
}
}
@FieldOrder({"SubstituteNameOffset", "SubstituteNameLength", "PrintNameOffset", "PrintNameLength", "PathBuffer"})
public static class MountPointReparseBuffer extends Structure {
public static class ByReference extends MountPointReparseBuffer implements Structure.ByReference {
public ByReference() {
}
public ByReference(Pointer memory) {
super(memory);
}
}
/**
* Offset, in bytes, of the substitute name string in the PathBuffer array.
* Note that this offset must be divided by sizeof(WCHAR) to get the array index.
*/
public short SubstituteNameOffset = 0;
/**
* Length, in bytes, of the substitute name string. If this string is NULL-terminated,
* SubstituteNameLength does not include space for the UNICODE_NULL character.
*/
public short SubstituteNameLength = 0;
/**
* Offset, in bytes, of the print name string in the PathBuffer array.
* Note that this offset must be divided by sizeof(WCHAR) to get the array index.
*/
public short PrintNameOffset = 0;
/**
* Length, in bytes, of the print name string. If this string is NULL-terminated,
* PrintNameLength does not include space for the UNICODE_NULL character.
*/
public short PrintNameLength = 0;
/**
* First character of the path string. This is followed in memory by the remainder of the string.
* The path string contains the substitute name string and print name string. The substitute name
* and print name strings can appear in any order in the PathBuffer. (To locate the substitute
* name and print name strings in the PathBuffer, use the SubstituteNameOffset, SubstituteNameLength,
* PrintNameOffset, and PrintNameLength members.)
* NOTE: MAXIMUM_REPARSE_DATA_BUFFER_SIZE is chosen here based on documentation. Because chars are two
* bytes, the actual array size needs to be divided by 2
*/
public char[] PathBuffer = new char[MAXIMUM_REPARSE_DATA_BUFFER_SIZE / 2];
public static int sizeOf() {
return Native.getNativeSize(MountPointReparseBuffer.class, null);
}
public MountPointReparseBuffer() {
super(W32APITypeMapper.UNICODE);
}
public MountPointReparseBuffer(Pointer memory) {
super(memory, Structure.ALIGN_DEFAULT, W32APITypeMapper.UNICODE);
read();
}
public MountPointReparseBuffer(String substituteName, String printName) {
super();
String bothNames = substituteName + printName;
PathBuffer = bothNames.toCharArray();
this.SubstituteNameOffset = 0;
this.SubstituteNameLength = (short) substituteName.length();
this.PrintNameOffset = (short) (substituteName.length() * 2);
this.PrintNameLength = (short) (printName.length() * 2);
write();
}
public MountPointReparseBuffer(short SubstituteNameOffset, short SubstituteNameLength, short PrintNameOffset, short PrintNameLength, String PathBuffer) {
super();
this.SubstituteNameOffset = SubstituteNameOffset;
this.SubstituteNameLength = SubstituteNameLength;
this.PrintNameOffset = PrintNameOffset;
this.PrintNameLength = PrintNameLength;
this.PathBuffer = PathBuffer.toCharArray();
write();
}
}
@FieldOrder({"DataBuffer"})
public static class GenericReparseBuffer extends Structure {
public static class ByReference extends GenericReparseBuffer implements Structure.ByReference {
public ByReference() {
}
public ByReference(Pointer memory) {
super(memory);
}
}
/**
* Microsoft-defined data for the reparse point.
* NOTE: MAXIMUM_REPARSE_DATA_BUFFER_SIZE is chosen based on documentation
*/
public byte[] DataBuffer = new byte[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
public static int sizeOf() {
return Native.getNativeSize(GenericReparseBuffer.class, null);
}
public GenericReparseBuffer() {
super();
}
public GenericReparseBuffer(Pointer memory) {
super(memory);
read();
}
public GenericReparseBuffer(String DataBuffer) {
super();
this.DataBuffer = DataBuffer.getBytes();
write();
}
}
/**
* The REPARSE_DATA_BUFFER structure contains reparse point data for a Microsoft reparse point.
* (Third-party reparse point owners must use the REPARSE_GUID_DATA_BUFFER structure instead.)
*/
@FieldOrder({"ReparseTag", "ReparseDataLength", "Reserved", "u"})
public static class REPARSE_DATA_BUFFER extends Structure {
public static class ByReference extends REPARSE_DATA_BUFFER implements Structure.ByReference {
public ByReference() {
}
public ByReference(Pointer memory) {
super(memory);
}
}
/**
* Reparse point tag. Must be a Microsoft reparse point tag.
*/
public int ReparseTag = 0;
/**
* Size, in bytes, of the reparse data in the DataBuffer member.
*/
public short ReparseDataLength = 0;
/**
* Length, in bytes, of the unparsed portion of the file name pointed to by the FileName member of the associated file object.
* For more information about the FileName member, see FILE_OBJECT. This member is only valid for create operations when the
* I/O fails with STATUS_REPARSE. For all other purposes, such as setting or querying a reparse point for the reparse data,
* this member is treated as reserved.
*/
public short Reserved = 0;
public static class REPARSE_UNION extends Union {
public static class ByReference extends REPARSE_UNION implements Structure.ByReference {
}
public REPARSE_UNION() {
super();
}
public REPARSE_UNION(Pointer memory) {
super(memory);
}
public SymbolicLinkReparseBuffer symLinkReparseBuffer;
public MountPointReparseBuffer mountPointReparseBuffer;
public GenericReparseBuffer genericReparseBuffer;
}
public REPARSE_UNION u;
public static int sizeOf() {
return Native.getNativeSize(REPARSE_DATA_BUFFER.class, null);
}
/**
* @return size of the structure considering the ReparseDataLength size
*/
public int getSize() {
return REPARSE_BUFFER_HEADER_SIZE + ReparseDataLength;
}
public REPARSE_DATA_BUFFER() {
super();
}
public REPARSE_DATA_BUFFER(int ReparseTag, short Reserved) {
super();
this.ReparseTag = ReparseTag;
this.Reserved = Reserved;
this.ReparseDataLength = 0;
write();
}
public REPARSE_DATA_BUFFER(int ReparseTag, short Reserved, SymbolicLinkReparseBuffer symLinkReparseBuffer) {
super();
this.ReparseTag = ReparseTag;
this.Reserved = Reserved;
this.ReparseDataLength = (short) symLinkReparseBuffer.size();
this.u.setType(SymbolicLinkReparseBuffer.class);
this.u.symLinkReparseBuffer = symLinkReparseBuffer;
write();
}
public REPARSE_DATA_BUFFER(Pointer memory) {
super(memory);
read();
}
@Override
public void read() {
super.read();
// Set structure value based on ReparseTag and then re-read the union.
switch(ReparseTag) {
default:
u.setType(GenericReparseBuffer.class);
break;
case WinNT.IO_REPARSE_TAG_MOUNT_POINT:
u.setType(MountPointReparseBuffer.class);
break;
case WinNT.IO_REPARSE_TAG_SYMLINK:
u.setType(SymbolicLinkReparseBuffer.class);
break;
}
u.read();
}
}
}
