private static long GetBaseBlockForMeta2(ref NANDReader reader)
{
reader.RawSeek(reader.FsRoot.Offset / 0x200 * 0x210 + 0x200, SeekOrigin.Begin);
var meta = NANDSpare.GetMetaData(reader.RawReadBytes(0x10));
var reserved = 0x1E0;
reserved -= meta.Meta2.FsPageCount;
reserved -= meta.Meta2.FsSize0 << 2;
return(reserved * 8);
}
public static void TestMetaUtils(string file)
{
var reader = new NANDReader(file);
var metaType = reader.MetaType;
for (long i = 0; i < reader.RawLength; i += 0x4200)
{
Debug.SendDebug("Seeking to page 0 of block 0x{0:X}", i / 0x4200);
reader.RawSeek(i + 0x200, SeekOrigin.Begin);
var meta = GetMetaData(reader.RawReadBytes(0x10));
Main.SendInfo("Block 0x{0:X} Page 0 Information:\r\n", i / 0x4200);
Main.SendInfo("LBA: 0x{0:X}\r\n", GetLba(ref meta));
Main.SendInfo("Block Type: 0x{0:X}\r\n", GetBlockType(ref meta));
Main.SendInfo("FSSize: 0x{0:X}\r\n", GetFsSize(ref meta));
Main.SendInfo("FsFreePages: 0x{0:X}\r\n", GetFsFreePages(ref meta));
Main.SendInfo("FsSequence: 0x{0:X}\r\n", GetFsSequence(ref meta));
Main.SendInfo("BadBlock Marker: 0x{0:X}\r\n", GetBadBlockMarker(ref meta));
}
}
internal static MetaType DetectSpareType(NANDReader reader, bool firsttry = true)
{
if (!reader.HasSpare)
{
return(MetaType.MetaTypeNone);
}
if (firsttry)
{
reader.RawSeek(0x4400, SeekOrigin.Begin);
}
else
{
reader.RawSeek(reader.RawLength - 0x4000, SeekOrigin.Begin);
}
var tmp = reader.RawReadBytes(0x10);
var mdata = GetMetaData(tmp);
if (!CheckIsBadBlockSpare(ref tmp, MetaType.MetaType0))
{
if (GetLbaRaw0(ref mdata) == 1)
{
return(MetaType.MetaType0);
}
if (GetLbaRaw1(ref mdata) == 1)
{
return(MetaType.MetaType1);
}
}
if (!CheckIsBadBlockSpare(ref tmp, MetaType.MetaType2))
{
if (firsttry)
{
reader.RawSeek(0x21200, SeekOrigin.Begin);
}
else if (reader.RawLength <= 0x4200000)
{
reader.RawSeek(reader.RawLength - 0x4000, SeekOrigin.Begin);
}
else
{
reader.RawSeek(0x4200000 - 0x4000, SeekOrigin.Begin);
}
tmp = reader.RawReadBytes(0x10);
if (!CheckIsBadBlockSpare(ref tmp, MetaType.MetaType2))
{
if (BlockIdFromSpare(ref tmp, MetaType.MetaType2) == 1)
{
return(MetaType.MetaType2);
}
}
}
else if (Main.VerifyVerbosityLevel(1))
{
Main.SendInfo(firsttry ? "\r\nBlock 1 is bad!" : "\r\nThe last system block is bad!");
}
if (firsttry)
{
return(DetectSpareType(reader, false));
}
throw new X360UtilsException(X360UtilsException.X360UtilsErrors.UnkownMetaType);
}
