added functions for modifying permissions of a wad. applied titleid setting for tickets.

This commit is contained in:
megazig 2010-12-23 07:32:10 +00:00
parent 374699c434
commit 0f506a205d
4 changed files with 334 additions and 209 deletions

View File

@ -52,6 +52,34 @@ bool Tmd::SetIOS( quint64 ios )
return true;
}
bool Tmd::SetAhb( bool remove )
{
if( !p_tmd )
return false;
quint32 access = qFromBigEndian( p_tmd->access_rights );
if( remove )
access |= 1;
else
access &= 0xfffffffe;
p_tmd->access_rights = qToBigEndian( access );
return true;
}
bool Tmd::SetDiskAccess( bool allow )
{
if( !p_tmd )
return false;
quint32 access = qFromBigEndian( p_tmd->access_rights );
if( allow )
access |= 2;
else
access &= 0xfffffffd;
p_tmd->access_rights = qToBigEndian( access );
return true;
}
quint16 Tmd::Gid()
{
if( !p_tmd )
@ -122,7 +150,7 @@ bool Tmd::SetSize( quint16 cid, quint32 size )
if( !p_tmd || cid >= qFromBigEndian( p_tmd->num_contents ) )
return false;
p_tmd->contents[ cid ].size = qFromBigEndian( size );
p_tmd->contents[ cid ].size = qFromBigEndian( (quint64)size );
return true;
}
@ -249,11 +277,23 @@ bool Ticket::SetTid( quint64 tid )
{
if( !p_tik )
return false;
//hexdump( data, payLoadOffset, data.size() - payLoadOffset );
quint64 t = qFromBigEndian( tid );
p_tik->titleid = t;
//hexdump( data, payLoadOffset, data.size() - payLoadOffset );
p_tik->titleid = qFromBigEndian( tid );
//create new title key
quint8 iv[ 16 ];
quint8 keyin[ 16 ];
quint8 commonkey[ 16 ] = COMMON_KEY;
memcpy( &keyin, (quint8 *)decKey.data(), 16 );
memset( &p_tik->cipher_title_key, 0, 16 );
memset( &iv, 0, 16 );
memcpy( &iv, &p_tik->titleid, sizeof(quint64) );
aes_set_key( (quint8 *)&commonkey );
aes_encrypt( (quint8 *)&iv, (quint8 *)&keyin,
(quint8 *)&p_tik->cipher_title_key, 16 );
return true;
}

View File

@ -207,6 +207,8 @@ public:
bool SetSize( quint16 i, quint32 size );
bool SetHash( quint16 i, const QByteArray hash );
bool SetIOS( quint64 ios );
bool SetAhb( bool remove = true );
bool SetDiskAccess( bool allow = true );
bool FakeSign();

View File

@ -107,11 +107,13 @@ Wad::Wad( const QByteArray stuff )
{
quint32 s = RU( 0x40, t.Size( i ) );
//qDebug() << "content" << i << "is at" << hex << pos << "with size" << s;
qDebug() << "content" << i << "is at" << hex << pos
<< "with size" << s;
QByteArray encData = stuff.mid( pos, s );
pos += s;
//doing this here in case there is some other object that is using the AES that would change the key on us
//doing this here in case there is some other object that
//is using the AES that would change the key on us
AesSetKey( ticket.DecryptedKey() );
QByteArray decData = AesDecrypt( i, encData );
@ -281,7 +283,8 @@ const QByteArray Wad::Data( quint32 magicWord, const QByteArray footer )
quint32 s = RU( 0x40, partsEnc.at( i ).size() );
if( RU( 0x40, t.Size( i ) ) != s )
{
Err( QString( "Size of content %1 is bad ( %2, %3, %4 )" ).arg( i )
Err( QString( "Size of content %1 is bad ( %2, %3, %4 )" )
.arg( i )
.arg( t.Size( i ), 0, 16 )
.arg( RU( 0x40, t.Size( i ) ), 0, 16 )
.arg( s, 0, 16 ) );
@ -572,6 +575,66 @@ bool Wad::SetTid( quint64 tid )
return true;
}
bool Wad::SetIOS( quint32 ios )
{
if( !tmdData.size() || !tikData.size() )
{
Err( "Mising parts of the wad" );
return false;
}
Tmd t( tmdData );
t.SetIOS( ios );
if( !t.FakeSign() )
{
Err( "Error signing TMD" );
return false;
}
tmdData = t.Data();
return true;
}
bool Wad::SetAhb( bool remove )
{
if( !tmdData.size() || !tikData.size() )
{
Err( "Mising parts of the wad" );
return false;
}
Tmd t( tmdData );
t.SetAhb( remove );
if( !t.FakeSign() )
{
Err( "Error signing TMD" );
return false;
}
tmdData = t.Data();
return true;
}
bool Wad::SetDiskAccess( bool allow )
{
if( !tmdData.size() || !tikData.size() )
{
Err( "Mising parts of the wad" );
return false;
}
Tmd t( tmdData );
t.SetDiskAccess( allow );
if( !t.FakeSign() )
{
Err( "Error signing TMD" );
return false;
}
tmdData = t.Data();
return true;
}
bool Wad::ReplaceContent( quint16 idx, const QByteArray ba )
{
if( idx >= partsEnc.size() || !tmdData.size() || !tikData.size() )
@ -583,8 +646,18 @@ bool Wad::ReplaceContent( quint16 idx, const QByteArray ba )
quint32 size = ba.size();
Tmd t( tmdData );
t.SetHash( idx, hash );
t.SetSize( idx, size );
if( !t.SetHash( idx, hash ) )
{
Err( "Error setting content hash" );
return false;
}else{
qDebug() << "Hash :" << hash.toHex();
}
if( !t.SetSize( idx, size ) )
{
Err( "Error setting content size" );
return false;
}
if( !t.FakeSign() )
{
Err( "Error signing the tmd" );
@ -601,3 +674,4 @@ bool Wad::ReplaceContent( quint16 idx, const QByteArray ba )
return true;
}

View File

@ -25,6 +25,15 @@ public:
//set the tid in the ticket&tmd and fakesign the wad
bool SetTid( quint64 tid );
//set the ios in the ticket&tmd and fakesign the wad
bool SetIOS( quint32 ios );
//set the tmd to allow AHBPROT removal
bool SetAhb( bool remove = true );
//set the tmd to allow direct disc access
bool SetDiskAccess( bool allow = true );
//replace a content of this wad, update the size & hash in the tmd and sign it
//ba should be decrypted
bool ReplaceContent( quint16 idx, const QByteArray ba );