mirror of
https://github.com/martravi/wiiqt.git
synced 2024-11-16 14:19:21 +01:00
659 lines
17 KiB
C++
Executable File
659 lines
17 KiB
C++
Executable File
#include "nandbin.h"
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#include "tools.h"
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NandBin::NandBin( QObject * parent, const QString &path ) : QObject( parent )
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{
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type = -1;
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fatNames = false;
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fstInited = false;
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root = NULL;
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if( !path.isEmpty() )
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SetPath( path );
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}
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NandBin::~NandBin()
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{
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if( f.isOpen() )
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f.close();
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if( root )
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delete root;
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}
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bool NandBin::SetPath( const QString &path )
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{
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fstInited = false;
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//nandPath = path;
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if( f.isOpen() )
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f.close();
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f.setFileName( path );
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bool ret = !f.exists() || !f.open( QIODevice::ReadOnly );
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if( ret )
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{
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emit SendError( tr( "Cant open %1" ).arg( path ) );
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}
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return !ret;
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}
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QTreeWidgetItem *NandBin::GetTree()
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{
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return root->clone();
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}
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bool NandBin::ExtractToDir( QTreeWidgetItem *item, const QString &path )
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{
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if( !item )
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return false;
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bool ok = false;
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quint16 entry = item->text( 1 ).toInt( &ok );
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if( !ok )
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{
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emit SendError( tr( "Error converting entry(%1) to a number" ).arg( item->text( 1 ) ) );
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return false;
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}
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return ExtractFST( entry, path, true );//dont bother extracting this item's siblings
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return true;
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}
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bool NandBin::AddChildren( QTreeWidgetItem *parent, quint16 entry )
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{
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if( entry >= 0x17ff )
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{
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emit SendError( tr( "entry is above 0x17ff mmmmkay [ 0x%1 ]" ).arg( entry, 0, 16 ) );
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return false;
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}
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fst_t fst = GetFST( entry );
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if( !fst.filename[ 0 ] )//something is amiss, better quit now
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return false;
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if( fst.sib != 0xffff )
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{
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if( !AddChildren( parent, fst.sib ) )
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return false;
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}
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QStringList text;
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QString name = FstName( fst );
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QString en = QString( "%1" ).arg( entry );
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QString size = QString( "%1" ).arg( fst.size, 0, 16 );
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QString uid = QString( "%1" ).arg( fst.uid, 8, 16, QChar( '0' ) );
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QString gid = QString( "%1 (\"%2%3\")" ).arg( fst.gid, 4, 16, QChar( '0' ) )
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.arg( QChar( ascii( (char)( (fst.gid >> 8) & 0xff ) ) ) )
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.arg( QChar( ascii( (char)( (fst.gid) & 0xff ) ) ) );
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QString x3 = QString( "%1" ).arg( fst.x3, 8, 16, QChar( '0' ) );
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QString mode = QString( "%1" ).arg( fst.mode, 2, 16, QChar( '0' ) );
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QString attr = QString( "%1" ).arg( fst.attr, 2, 16, QChar( '0' ) );
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text << name << en << size << uid << gid << x3 << mode << attr;
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QTreeWidgetItem *child = new QTreeWidgetItem( parent, text );
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child->setTextAlignment( 1, Qt::AlignRight | Qt::AlignVCenter );//align to the right
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child->setTextAlignment( 2, Qt::AlignRight | Qt::AlignVCenter );
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child->setTextAlignment( 3, Qt::AlignRight | Qt::AlignVCenter );
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child->setTextAlignment( 4, Qt::AlignRight | Qt::AlignVCenter );
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child->setTextAlignment( 5, Qt::AlignRight | Qt::AlignVCenter );
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child->setTextAlignment( 6, Qt::AlignRight | Qt::AlignVCenter );
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child->setTextAlignment( 7, Qt::AlignRight | Qt::AlignVCenter );
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//set some icons
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if( fst.mode )
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{
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child->setIcon( 0, keyIcon );
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}
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else
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{
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child->setIcon( 0, groupIcon );
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//try to add subfolder contents to the tree
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if( fst.sub != 0xffff && !AddChildren( child, fst.sub ) )
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return false;
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}
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return true;
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}
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QString NandBin::FstName( fst_t fst )
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{
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QByteArray ba( (char*)fst.filename, 0xc );
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QString ret = QString( ba );
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if( fatNames )
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ret.replace( ":", "-" );
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return ret;
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}
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bool NandBin::ExtractFST( quint16 entry, const QString &path, bool singleFile )
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{
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//qDebug() << "NandBin::ExtractFST(" << hex << entry << "," << path << ")";
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fst_t fst = GetFST( entry );
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if( !fst.filename[ 0 ] )//something is amiss, better quit now
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return false;
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if( !singleFile && fst.sib != 0xffff && !ExtractFST( fst.sib, path ) )
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return false;
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switch( fst.mode )
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{
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case 0:
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if( !ExtractDir( fst, path ) )
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return false;
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break;
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case 1:
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if( !ExtractFile( fst, path ) )
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return false;
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break;
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default://wtf
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emit SendError( tr( "Unknown fst mode. Bailing out" ) );
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return false;
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break;
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}
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return true;
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}
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bool NandBin::ExtractDir( fst_t fst, QString parent )
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{
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//qDebug() << "NandBin::ExtractDir(" << parent << ")";
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QByteArray ba( (char*)fst.filename, 0xc );
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QString filename( ba );
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QFileInfo fi( parent );
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if( filename != "/" )
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{
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fi.setFile( parent + "/" + filename );
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if( !fi.exists() && !QDir().mkpath( fi.absoluteFilePath() ) )
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{
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emit SendError( tr( "Can\'t create directory \"%1\"" ).arg( fi.absoluteFilePath() ) );
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return false;
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}
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}
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if( fst.sub != 0xffff && !ExtractFST( fst.sub, fi.absoluteFilePath() ) )
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return false;
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return true;
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}
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bool NandBin::ExtractFile( fst_t fst, QString parent )
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{
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QByteArray ba( (char*)fst.filename, 0xc );
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QString filename( ba );
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QFileInfo fi( parent + "/" + filename );
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qDebug() << "extract" << fi.absoluteFilePath();
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emit SendText( tr( "Extracting \"%1\"" ).arg( fi.absoluteFilePath() ) );
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QByteArray data = GetFile( fst );
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if( fst.size && !data.size() )//dont worry if files dont have anything in them anyways
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return false;
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if( !WriteFile( fi.absoluteFilePath(), data ) )
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{
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emit SendError( tr( "Error writing \"%1\"" ).arg( fi.absoluteFilePath() ) );
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return false;
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}
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return true;
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}
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bool NandBin::InitNand( QIcon dirs, QIcon files )
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{
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fstInited = false;
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fats.clear();
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type = GetDumpType( f.size() );
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if( type < 0 || type > 3 )
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return false;
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//qDebug() << "dump type:" << type;
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if( !GetKey( type ) )
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return false;
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loc_super = FindSuperblock();
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if( loc_super < 0 )
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return false;
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quint32 n_fatlen[] = { 0x010000, 0x010800, 0x010800 };
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loc_fat = loc_super;
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loc_fst = loc_fat + 0x0C + n_fatlen[ type ];
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//cache all the entries
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for( quint16 i = 0; i < 0x17ff; i++ )
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fsts[ i ] = GetFST( i );
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//cache all the fats
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for( quint16 i = 0; i < 0x8000; i++ )
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fats << GetFAT( i );
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fstInited = true;
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if( root )
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delete root;
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groupIcon = dirs;
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keyIcon = files;
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root = new QTreeWidgetItem( QStringList() << nandPath );
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AddChildren( root, 0 );
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//ShowInfo();
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return true;
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}
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int NandBin::GetDumpType( quint64 fileSize )
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{
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quint64 sizes[] = { 536870912, // type 0 | 536870912 == no ecc
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553648128, // type 1 | 553648128 == ecc
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553649152 }; // type 2 | 553649152 == old bootmii
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for( int i = 0; i < 3; i++ )
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{
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if( sizes[ i ] == fileSize )
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return i;
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}
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emit SendError( tr( "Can't tell what type of nand dump this is" ) );
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return -1;
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}
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bool NandBin::GetKey( int type )
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{
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switch( type )
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{
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case 0:
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case 1:
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{
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QString keyPath = nandPath;
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int sl = keyPath.lastIndexOf( "/" );
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if( sl == -1 )
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{
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emit SendError( tr( "Error getting path of keys.bin" ) );
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return false;
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}
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keyPath.resize( sl + 1 );
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keyPath += "keys.bin";
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key = ReadKeyfile( keyPath );
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if( key.isEmpty() )
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return false;
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}
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break;
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case 2:
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{
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if( !f.isOpen() )
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{
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emit SendError( tr( "Tried to read keys from unopened file" ) );
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return false;
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}
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f.seek( 0x21000158 );
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key = f.read( 16 );
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}
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break;
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default:
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emit SendError( tr( "Tried to read keys for unknown dump type" ) );
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return false;
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break;
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}
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return true;
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}
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QByteArray NandBin::ReadKeyfile( QString path )
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{
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QByteArray retval;
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QFile f( path );
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if( !f.exists() || !f.open( QIODevice::ReadOnly ) )
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{
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emit SendError( tr( "Can't open %1!" ).arg( path ) );
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return retval;
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}
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if( f.size() < 0x16e )
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{
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f.close();
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emit SendError( tr( "keys.bin is too small!" ) );
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return retval;
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}
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f.seek( 0x158 );
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retval = f.read( 16 );
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f.close();
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return retval;
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}
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qint32 NandBin::FindSuperblock()
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{
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if( type < 0 || type > 3 )
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{
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emit SendError( tr( "Tried to get superblock of unknown dump type" ) );
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return -1;
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}
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if( !f.isOpen() )
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{
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emit SendError( tr( "Tried to get superblock of unopened dump" ) );
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return -1;
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}
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quint32 loc = 0, current = 0, last = 0;
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quint32 n_start[] = { 0x1FC00000, 0x20BE0000, 0x20BE0000 },
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n_end[] = { 0x20000000, 0x21000000, 0x21000000 },
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n_len[] = { 0x40000, 0x42000, 0x42000 };
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for( loc = n_start[ type ]; loc < n_end[ type ]; loc += n_len[ type ] )
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{
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f.read( (char*)¤t, 4 );
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current = qFromBigEndian( current );
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//qDebug() << "superblock" << hex << current;
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if( current > last )
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last = current;
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else
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{
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//qDebug() << "superblock loc" << hex << loc - n_len[ type ];
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return loc - n_len[ type ];
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}
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f.seek( n_len[ type ] - 4 );
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}
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return -1;
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}
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fst_t NandBin::GetFST( quint16 entry )
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{
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//qDebug() << "NandBin::GetFST(" << hex << entry << ")";
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fst_t fst;
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if( entry >= 0x17FF )
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{
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emit SendError( tr( "Tried to get entry above 0x17ff [ 0x%1 ]" ).arg( entry, 0, 16 ) );
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fst.filename[ 0 ] = '\0';
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return fst;
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}
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if( fstInited )//we've already read this once, just give back the one we already know
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{
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//qDebug() << "reading from cache" << hex << entry;
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return fsts[ entry ];
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}
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// compensate for 64 bytes of ecc data every 64 fst entries
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quint32 n_fst[] = { 0, 2, 2 };
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int loc_entry = ( ( ( entry / 0x40 ) * n_fst[ type ] ) + entry ) * 0x20;
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if( (quint32)f.size() < loc_fst + loc_entry + sizeof( fst_t ) )
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{
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emit SendError( tr( "Tried to read fst_t beyond size of nand.bin" ) );
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fst.filename[ 0 ] = '\0';
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return fst;
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}
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f.seek( loc_fst + loc_entry );
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f.read( (char*)&fst.filename, 0xc );
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f.read( (char*)&fst.mode, 1 );
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f.read( (char*)&fst.attr, 1 );
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f.read( (char*)&fst.sub, 2 );
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f.read( (char*)&fst.sib, 2 );
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if( type && ( entry + 1 ) % 64 == 0 )//bug in other nand.bin extracterizers. the entry for every 64th fst item is inturrupeted by some ecc shit
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{
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f.read( (char*)&fst.size, 2 );
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f.seek( f.pos() + 0x40 );
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f.read( (char*)(&fst.size) + 2, 2 );
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}
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else
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f.read( (char*)&fst.size, 4 );
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f.read( (char*)&fst.uid, 4 );
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f.read( (char*)&fst.gid, 2 );
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f.read( (char*)&fst.x3, 4 );
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fst.sub = qFromBigEndian( fst.sub );
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fst.sib = qFromBigEndian( fst.sib );
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fst.size = qFromBigEndian( fst.size );
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fst.uid = qFromBigEndian( fst.uid );
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fst.gid = qFromBigEndian( fst.gid );
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fst.x3 = qFromBigEndian( fst.x3 );
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fst.mode &= 1;
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return fst;
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}
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quint16 NandBin::GetFAT( quint16 fat_entry )
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{
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if( fstInited )
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return fats.at( fat_entry );
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/*
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* compensate for "off-16" storage at beginning of superblock
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* 53 46 46 53 XX XX XX XX 00 00 00 00
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* S F F S "version" padding?
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* 1 2 3 4 5 6*/
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fat_entry += 6;
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// location in fat of cluster chain
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quint32 n_fat[] = { 0, 0x20, 0x20 };
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int loc = loc_fat + ((((fat_entry / 0x400) * n_fat[type]) + fat_entry) * 2);
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if( (quint32)f.size() < loc + sizeof( quint16 ) )
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{
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emit SendError( tr( "Tried to read FAT entry beyond size of nand.bin" ) );
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return 0;
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}
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f.seek( loc );
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quint16 ret;
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f.read( (char*)&ret, 2 );
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ret = qFromBigEndian( ret );
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return ret;
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}
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QByteArray NandBin::GetCluster( quint16 cluster_entry, bool decrypt )
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{
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//qDebug() << "NandBin::GetCluster" << hex << cluster_entry;
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quint32 n_clusterlen[] = { 0x4000, 0x4200, 0x4200 };
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quint32 n_pagelen[] = { 0x800, 0x840, 0x840 };
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if( f.size() < ( cluster_entry * n_clusterlen[ type ] ) + ( 8 * n_pagelen[ type ] ) )
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{
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emit SendError( tr( "Tried to read cluster past size of nand.bin" ) );
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return QByteArray();
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}
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QByteArray cluster;
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for( int i = 0; i < 8; i++ )
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{
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f.seek( ( cluster_entry * n_clusterlen[ type ] ) + ( i * n_pagelen[ type ] ) ); //seek to the beginning of the page to read
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//QByteArray page = f.read( n_pagelen[ type ] ); //read the page, with ecc
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QByteArray page = f.read( 0x800 ); //read the page, skip the ecc
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cluster += page;
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}
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if( cluster.size() != 0x4000 )
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{
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qDebug() << "actual cluster size" << hex << cluster.size();
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emit SendError( tr( "Error reading cluster" ) );
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return QByteArray();
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}
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if( !decrypt )
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return cluster;
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//really redundant to do this for ever AES decryption, but the AES code only lets
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//1 key set at a time and it may be changed if some other object is decrypting something else
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AesSetKey( key );
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QByteArray ret = AesDecrypt( 0, cluster );//TODO... is IV really always 0?
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return ret;
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}
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QByteArray NandBin::GetFile( quint16 entry )
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{
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fst_t fst = GetFST( entry );
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if( !fst.filename[ 0 ] )//something is amiss, better quit now
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return QByteArray();
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return GetFile( fst );
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}
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QByteArray NandBin::GetFile( fst_t fst )
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{
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if( !fst.size )
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return QByteArray();
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quint16 fat = fst.sub;
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//int cluster_span = (int)( fst.size / 0x4000) + 1;
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QByteArray data;
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for (int i = 0; fat < 0xFFF0; i++)
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{
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QByteArray cluster = GetCluster( fat );
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if( cluster.size() != 0x4000 )
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return QByteArray();
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data += cluster;
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fat = GetFAT( fat );
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}
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//this check doesnt really seem to matter, it always appears to be 1 extra cluster added to the end
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//of the file and that extra bit is dropped in this function before the data is returned.
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/*if( data.size() != cluster_span * 0x4000 )
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{
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qDebug() << "data.size() != cluster_span * 0x4000 :: "
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<< hex << data.size()
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<< cluster_span
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<< ( cluster_span * 0x4000 )
|
|
<< "expected size:" << hex << fst.size;
|
|
|
|
emit SendError( tr( "Error reading file [ block size is not a as expected ] %1" ).arg( FstName( fst ) ) );
|
|
}*/
|
|
if( (quint32)data.size() < fst.size )
|
|
{
|
|
qDebug() << "(quint32)data.size() < fst.size :: "
|
|
<< hex << data.size()
|
|
<< "expected size:" << hex << fst.size;
|
|
|
|
emit SendError( tr( "Error reading file [ returned data size is less that the size in the fst ]" ) );
|
|
return QByteArray();
|
|
}
|
|
|
|
if( (quint32)data.size() > fst.size )
|
|
data.resize( fst.size );//dont need to give back all the data, only up to the expected size
|
|
|
|
return data;
|
|
}
|
|
|
|
const QList<quint16> NandBin::GetFatsForFile( quint16 i )
|
|
{
|
|
//qDebug() << "NandBin::GetFatsForFile" << i;
|
|
QList<quint16> ret;
|
|
fst_t fst = GetFST( i );
|
|
|
|
if( fst.filename[ 0 ] == '\0' )
|
|
return ret;
|
|
|
|
quint16 fat = fst.sub;
|
|
quint16 j = 0;//just to make sure a broken nand doesnt lead to an endless loop
|
|
while ( fat < 0x8000 && fat > 0 && ++j )
|
|
{
|
|
ret << fat;
|
|
fat = GetFAT( fat );
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void NandBin::SetFixNamesForFAT( bool fix )
|
|
{
|
|
fatNames = fix;
|
|
}
|
|
|
|
const QByteArray NandBin::GetData( const QString &path )
|
|
{
|
|
QTreeWidgetItem *item = ItemFromPath( path );
|
|
if( !item )
|
|
return QByteArray();
|
|
|
|
if( !item->text( 6 ).contains( "1" ) )
|
|
{
|
|
qDebug() << "NandBin::GetData -> can't get data for a folder" << item->text( 0 );
|
|
return QByteArray();
|
|
}
|
|
|
|
bool ok = false;
|
|
quint16 entry = item->text( 1 ).toInt( &ok, 10 );
|
|
if( !ok )
|
|
return QByteArray();
|
|
|
|
return GetFile( entry );
|
|
}
|
|
|
|
QTreeWidgetItem *NandBin::ItemFromPath( const QString &path )
|
|
{
|
|
if( !root || !root->childCount() )
|
|
return NULL;
|
|
|
|
QTreeWidgetItem *item = root->child( 0 );
|
|
if( item->text( 0 ) != "/" )
|
|
{
|
|
qWarning() << "NandBin::ItemFromPath -> root is not \"/\"" << item->text( 0 );
|
|
return NULL;
|
|
}
|
|
if( !path.startsWith( "/" ) || path.contains( "//" ))
|
|
{
|
|
qWarning() << "NandBin::ItemFromPath -> invalid path";
|
|
return NULL;
|
|
}
|
|
int slash = 1;
|
|
while( slash )
|
|
{
|
|
int nextSlash = path.indexOf( "/", slash + 1 );
|
|
QString lookingFor = path.mid( slash, nextSlash - slash );
|
|
item = FindItem( lookingFor, item );
|
|
if( !item )
|
|
{
|
|
qWarning() << "NandBin::ItemFromPath ->item not found" << path;
|
|
return NULL;
|
|
}
|
|
slash = nextSlash + 1;
|
|
}
|
|
return item;
|
|
}
|
|
|
|
QTreeWidgetItem *NandBin::FindItem( const QString &s, QTreeWidgetItem *parent )
|
|
{
|
|
int cnt = parent->childCount();
|
|
for( int i = 0; i <cnt; i++ )
|
|
{
|
|
QTreeWidgetItem *r = parent->child( i );
|
|
if( r->text( 0 ) == s )
|
|
{
|
|
return r;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void NandBin::ShowInfo()
|
|
{
|
|
quint16 badBlocks = 0;
|
|
quint16 reserved = 0;
|
|
quint16 freeBlocks = 0;
|
|
QList<quint16>badOnes;
|
|
for( quint16 i = 0; i < 0x8000; i++ )
|
|
{
|
|
quint16 fat = GetFAT( i );
|
|
if( 0xfffc == fat )
|
|
reserved++;
|
|
else if( 0xfffd == fat )
|
|
{
|
|
badBlocks++;
|
|
if( i % 8 == 0 )
|
|
{
|
|
badOnes << ( i / 8 );
|
|
}
|
|
}
|
|
else if( 0xfffe == fat )
|
|
freeBlocks++;
|
|
}
|
|
if( badBlocks )
|
|
badBlocks /= 8;
|
|
|
|
if( reserved )
|
|
reserved /= 8;
|
|
|
|
if( freeBlocks )
|
|
freeBlocks /= 8;
|
|
|
|
qDebug() << "free blocks:" << hex << freeBlocks
|
|
<< "\nbadBlocks:" << hex << badBlocks << badOnes
|
|
<< "\nreserved:" << hex << reserved;
|
|
}
|