mirror of
https://github.com/martravi/wiiqt.git
synced 2024-06-30 14:26:08 +02:00
129 lines
3.0 KiB
C++
129 lines
3.0 KiB
C++
#include "wad.h"
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#include "tools.h"
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#include "tiktmd.h"
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static QByteArray globalCert;
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Wad::Wad( const QByteArray stuff )
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{
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ok = false;
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if( stuff.size() < 0x80 )//less than this and there is definitely nothing there
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return;
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QByteArray copy = stuff;
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QBuffer b( © );
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b.open( QIODevice::ReadOnly );
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quint32 tmp;
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b.read( (char*)&tmp, 4 );
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if( qFromBigEndian( tmp ) != 0x20 )
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{
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b.close();
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Err( "Bad header size" );
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return;
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}
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b.read( (char*)&tmp, 4 );
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tmp = qFromBigEndian( tmp );
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if( tmp != 0x49730000 && tmp != 0x69620000 && tmp != 0x426b0000 )
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{
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b.close();
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Err( "Bad file magic word" );
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return;
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}
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quint32 certSize;
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quint32 tikSize;
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quint32 tmdSize;
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quint32 appSize;
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quint32 footerSize;
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b.read( (char*)&certSize, 4 );
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certSize = qFromBigEndian( certSize );
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b.seek( 0x10 );
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b.read( (char*)&tikSize, 4 );
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tikSize = qFromBigEndian( tikSize );
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b.read( (char*)&tmdSize, 4 );
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tmdSize = qFromBigEndian( tmdSize );
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b.read( (char*)&appSize, 4 );
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appSize = qFromBigEndian( appSize );
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b.read( (char*)&footerSize, 4 );
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footerSize = qFromBigEndian( footerSize );
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b.close();//close the buffer, the rest of the data can be checked without it
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//sanity check this thing
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quint32 s = stuff.size();
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if( s < ( RU( 0x40, certSize ) + RU( 0x40, tikSize ) + RU( 0x40, tmdSize ) + RU( 0x40, appSize ) + RU( 0x40, footerSize ) ) )
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{
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Err( "Total size is less than the combined sizes of all the parts that it is supposed to contain" );
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return;
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}
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quint32 pos = 0x40;
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certData = stuff.mid( pos, certSize );
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pos += RU( 0x40, certSize );
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tikData = stuff.mid( pos, tikSize );
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pos += RU( 0x40, tikSize );
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tmdData = stuff.mid( pos, tmdSize );
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pos += RU( 0x40, tmdSize );
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Ticket ticket( tikData );
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Tmd t( tmdData );
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if( ticket.Tid() != t.Tid() )
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qWarning() << "wad contains 2 different TIDs";
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quint32 cnt = qFromBigEndian( t.payload()->num_contents );
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qDebug() << "Wad contains" << hex << cnt << "contents";
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//another quick sanity check
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quint32 totalSize = 0;
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for( quint32 i = 0; i < cnt; i++ )
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totalSize += t.Size( i );
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if( totalSize > appSize )
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{
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Err( "Size of all the apps in the tmd is greater than the size in the wad header" );
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return;
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}
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/*
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void AesSetKey( const QByteArray key );
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QByteArray AesDecrypt( quint16 index, const QByteArray source );
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*/
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//read all the contents, check the hash, and remember the data ( still encrypted )
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for( quint32 i = 0; i < cnt; i++ )
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{
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quint32 s = RU( 0x40, t.Size( i ) );
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QByteArray encData = stuff.mid( pos, s );
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pos += s;
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//doing this here in case there is some other object that is using the AES that would change the key on us
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AesSetKey( ticket.DecryptedKey() );
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}
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//Data = stuff.mid( pos, Size );
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//pos += RU( 0x40, Size );
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ok = true;
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}
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Wad::Wad( QList< QByteArray > stuff, bool encrypted )
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{
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}
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void Wad::Err( QString str )
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{
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errStr = str;
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qWarning() << "Wad::Error" << str;
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}
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