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| /* ### | |
| * IP: Public Domain | |
| */ | |
| package mobiledevices.dmg.btree; | |
| import java.io.IOException; | |
| import mobiledevices.dmg.decmpfs.DecmpfsHeader; | |
| import mobiledevices.dmg.ghidra.GBinaryReader; | |
| import mobiledevices.dmg.xattr.XattrConstants; | |
| public class BTreeNodeRecord /*implements StructConverter*/ { | |
| private int unknown0; | |
| private int fileID; | |
| private int unknown2; | |
| private String type; | |
| private int unknown3; | |
| private int unknown4; | |
| private int unknown5; | |
| private int recordLength; | |
| private short _typeLength; | |
| private BTreeNodeDescriptor _descriptor; | |
| private DecmpfsHeader _decmpfsHeader; | |
| private long _offset; | |
| BTreeNodeRecord( GBinaryReader reader, BTreeNodeDescriptor descriptor ) throws IOException { | |
| _offset = reader.getPointerIndex(); | |
| unknown0 = reader.readNextInt(); | |
| fileID = reader.readNextInt(); | |
| unknown2 = reader.readNextInt(); | |
| _typeLength = reader.readNextShort(); | |
| type = readType( reader ); | |
| unknown3 = reader.readNextInt(); | |
| switch ( descriptor.getKind() ) { | |
| case BTreeNodeKinds.kBTHeaderNode: { | |
| break; | |
| } | |
| case BTreeNodeKinds.kBTIndexNode: { | |
| break; | |
| } | |
| case BTreeNodeKinds.kBTLeafNode: { | |
| unknown4 = reader.readNextInt(); | |
| unknown5 = reader.readNextInt(); | |
| recordLength = reader.readNextInt(); | |
| break; | |
| } | |
| case BTreeNodeKinds.kBTMapNode: { | |
| break; | |
| } | |
| } | |
| _descriptor = descriptor; | |
| if ( descriptor.getKind() == BTreeNodeKinds.kBTLeafNode ) { | |
| if ( getType().equals( XattrConstants.DECMPFS_XATTR_NAME ) ) { | |
| _decmpfsHeader = new DecmpfsHeader( reader, getRecordLength() ); | |
| } | |
| else if ( getType().equals( XattrConstants.KAUTH_FILESEC_XATTR_NAME ) ) { | |
| //TODO | |
| } | |
| } | |
| else if ( descriptor.getKind() == BTreeNodeKinds.kBTIndexNode ) { | |
| if ( getType().equals( XattrConstants.DECMPFS_XATTR_NAME ) ) { | |
| //TODO | |
| } | |
| } | |
| } | |
| private String readType( GBinaryReader reader ) throws IOException { | |
| StringBuffer buffer = new StringBuffer(); | |
| for ( int i = 0 ; i < _typeLength ; ++i ) { | |
| reader.readNextByte();//skip it... | |
| buffer.append( (char) reader.readNextByte() ); | |
| } | |
| return buffer.toString(); | |
| } | |
| public String getType() { | |
| return type; | |
| } | |
| public int getRecordLength() { | |
| return recordLength; | |
| } | |
| public BTreeNodeDescriptor getDescriptor() { | |
| return _descriptor; | |
| } | |
| public int getUnknown0() { | |
| return unknown0; | |
| } | |
| public int getUnknown2() { | |
| return unknown2; | |
| } | |
| public int getUnknown3() { | |
| return unknown3; | |
| } | |
| public int getUnknown4() { | |
| return unknown4; | |
| } | |
| public int getUnknown5() { | |
| return unknown5; | |
| } | |
| public int getFileID() { | |
| return fileID; | |
| } | |
| public DecmpfsHeader getDecmpfsHeader() { | |
| return _decmpfsHeader; | |
| } | |
| public long getRecordOffset() { | |
| return _offset; | |
| } | |
| // @Override | |
| // public DataType toDataType() throws DuplicateNameException, IOException { | |
| // String name = StructConverterUtil.parseName( BTreeNodeRecord.class ); | |
| // Structure struct = new StructureDataType( name, 0 ); | |
| // struct.add( DWORD, "unknown0", null ); | |
| // struct.add( DWORD, "fileID", null ); | |
| // struct.add( DWORD, "unknown2", null ); | |
| // struct.add( WORD, "typeLength", null ); | |
| // struct.add( UNICODE, _typeLength * 2, "type", null ); | |
| // struct.add( DWORD, "unknown3", null ); | |
| // if ( _descriptor.getKind() == BTreeNodeKinds.kBTLeafNode ) { | |
| // struct.add( DWORD, "unknown4", null ); | |
| // struct.add( DWORD, "unknown5", null ); | |
| // struct.add( DWORD, "recordLength", null ); | |
| // } | |
| // try { | |
| // struct.setName( name + '_' + struct.getLength() ); | |
| // } | |
| // catch ( Exception e ) { | |
| // } | |
| // return struct; | |
| // } | |
| } |