public void Write(Context ctx, Stream inStream, Stream outStream, Coordinator pc)
{
try
{
WiiDiscHeaderSection hdr = null;
WiiPartitionHeaderSection pHdr = null;
string lastPartitionId = null;
PartitionType lastPartitionType = PartitionType.Other;
NCrc crc = new NCrc();
Crc updateCrc = new Crc();
bool updateRemoved = false;
string updateTmpFileName = null;
string updateFileName = null;
bool extractingUpdate = false;
CryptoStream updateCrcStream = null;
NStream updateTarget = null;
CryptoStream target = null;
MemorySection removedUpdateFiller = null;
int preservedHashCount = 0;
NkitInfo nkitDiscInfo = new NkitInfo();
long fstFileAlignment = -1;
WiiPartitionSection lastPart = null;
long dstPos = 0;
long imageSize = pc.OutputSize; //for Wii: pHdr.PartitionDataLength
string ignoreJunkId;
pc.WriterCheckPoint1WriteReady(out ignoreJunkId); //wait until read has written the header and set the length
NDisc disc = new NDisc(_log, inStream);
foreach (IWiiDiscSection s in disc.EnumerateSections(imageSize)) //no fixing, image should be good //ctx.ImageLength
{
if (s is WiiDiscHeaderSection)
{
hdr = (WiiDiscHeaderSection)s;
hdr.Write8(0x60, 1);
hdr.Write8(0x61, 1);
fstFileAlignment = ctx?.Settings?.PreserveFstFileAlignment?.FirstOrDefault(a => a.Item1 == hdr.Id8)?.Item2 ?? -1;
target = new CryptoStream(outStream, crc, CryptoStreamMode.Write);
target.Write(hdr.Data, 0, hdr.Data.Length); //write the header
nkitDiscInfo.BytesData += hdr.Size;
dstPos += hdr.Size;
crc.Snapshot("Disc Header");
}
else if (s is WiiPartitionSection)
{
WiiPartitionSection ps = (WiiPartitionSection)s;
WiiHashStore hashes = new WiiHashStore(ps.PartitionDataLength);
ScrubManager scrub = ps.Header.ScrubManager;
NkitInfo nkitPartInfo = new NkitInfo();
if (ps.Header.Type == PartitionType.Update && ctx.Settings.NkitUpdatePartitionRemoval && hdr.Partitions.Count() > 1) //only remove update if there's more partitions
{
updateRemoved = true;
extractingUpdate = true;
pHdr = ps.Header;
extractingUpdate = true;
updateCrcStream = new CryptoStream(ByteStream.Zeros, updateCrc, CryptoStreamMode.Write);
crc.Initialize();
nkitPartInfo.BytesData += disc.WriteRecoveryPartitionData(updateCrcStream, false, ps, 0, out updateTmpFileName, out updateFileName, out updateTarget);
_log?.LogDetail(string.Format("Extracted and Removed {0} Recovery Partition: [{1}]", ps.Header.Type.ToString(), SourceFiles.CleanseFileName(ps.Header.Id).PadRight(4)));
removedUpdateFiller = new MemorySection(new byte[0x8000]);
removedUpdateFiller.Write(0, hdr.Read(0x40000, 0x100)); //backup the original partition table in case it's non standard in some way
}
else
{
target.Write(ps.Header.Data, 0, (int)ps.Header.Size);
nkitDiscInfo.BytesData += ps.Header.Size;
crc.Snapshot(ps.Id + " Hdr");
crc.Crcs.Last().PatchData = ps.Header.Data;
dstPos += ps.Header.Size;
ps.NewDiscOffset = dstPos;
//long written = 0;
using (StreamCircularBuffer decrypted = new StreamCircularBuffer(ps.PartitionDataLength, null, null, output =>
{
//read decrypted partition
foreach (WiiPartitionGroupSection pg in ps.Sections)
{
nkitPartInfo.BytesHashesData += (pg.Size / 0x8000 * 0x400); //size of input hashes
if (pg.PreserveHashes())
{
nkitPartInfo.BytesHashesPreservation += hashes.Preserve(pg.Offset, pg.Decrypted, pg.Size);
if (++preservedHashCount >= 1500) //too many will bomb the patch caching when converting back. Something is wrong
{
throw pc.SetWriterException(new HandledException("Over 1500 hashes preserved, aborting as image is corrupt or poorly scrubbed."));
}
}
#if !DECRYPT
for (int i = 0; i < pg.Size / 0x8000; i++)
{
output.Write(pg.Decrypted, (i * 0x8000) + 0x400, 0x7c00);
}
#else
output.Write(pg.Decrypted, 0, (int)pg.Size);
#endif
}
}))
{
long len = partitionWrite(decrypted, crc, target, ps, ctx, pc, nkitPartInfo, scrub, hashes, fstFileAlignment);
ps.NewPartitionDataLength = len;
dstPos += len;
lastPart = ps;
}
}
NkitFormat.LogNkitInfo(nkitPartInfo, _log, ps.Id, false);
lastPartitionId = ps.Id;
lastPartitionType = ps.Header.Type;
}
else if (s is WiiFillerSection)
{
WiiFillerSection fs = (WiiFillerSection)s;
ScrubManager scrub = new ScrubManager(null);
JunkStream junk = new JunkStream(lastPartitionType != PartitionType.Data ? hdr.ReadString(0, 4) : lastPartitionId, hdr.Read8(6), lastPartitionType == PartitionType.Update ? 0 : imageSize);
if (lastPartitionType == PartitionType.Update && updateRemoved)
{
//preserve the original partition table and update filename
target.Write(removedUpdateFiller.Data, 0, (int)removedUpdateFiller.Size); //remove update partition by adding a 32k placeholder. Avoid having a non update partition at 0x50000
nkitDiscInfo.BytesPreservationDiscPadding += removedUpdateFiller.Size;
nkitDiscInfo.BytesGaps += fs.Size;
dstPos += removedUpdateFiller.Size;
crc.Snapshot(string.Format("{0}Replacement Filler", string.IsNullOrEmpty(lastPartitionId) ? "" : (" " + SourceFiles.CleanseFileName(lastPartitionId).PadRight(4))));
if (extractingUpdate)
{
int storeType;
if ((storeType = disc.WriteRecoveryPartitionFiller(updateCrcStream, junk, fs.DiscOffset, true, true, fs, updateTarget, updateTmpFileName, ref updateFileName, updateCrc, true)) != 0)
{
_log.LogDetail(string.Format("{0}Update recovery partition stored: {1}", storeType == 2 ? "Other " : "", updateFileName));
}
extractingUpdate = false;
}
}
else
{
if (fs.Size != 0)
{
using (StreamCircularBuffer filler = new StreamCircularBuffer(fs.Size, null, null, output =>
{
foreach (WiiFillerSectionItem item in ((WiiFillerSection)s).Sections)
{
output.Write(item.Data, 0, (int)item.Size);
}
}))
{
Gap gap = new Gap(fs.Size, false);
long srcPos = fs.DiscOffset;
long gapLen = gap.Encode(filler, ref srcPos, lastPartitionType == PartitionType.Update ? fs.Size : 0x1cL, fs.Size, junk, scrub, target, _log);
nkitDiscInfo.BytesPreservationData += gapLen;
nkitDiscInfo.BytesGaps += fs.Size;
dstPos += gapLen;
if (lastPart != null)
{
lastPart.NewPartitionDataLength += gapLen;
}
}
}
//pad partition to 32k
int gapLen2 = (int)(dstPos % 0x8000 == 0 ? 0 : 0x8000 - (dstPos % 0x8000));
ByteStream.Zeros.Copy(target, gapLen2);
nkitDiscInfo.BytesPreservationDiscPadding += gapLen2;
dstPos += gapLen2;
if (lastPart != null)
{
lastPart.NewPartitionDataLength += gapLen2;
}
if (lastPart != null)
{
lastPart.Header.WriteUInt32B(0x2bc, (uint)(lastPart.NewPartitionDataLength / 4)); //updates the array in the crc data
hdr.Partitions.First(a => a.DiscOffset == lastPart.DiscOffset).DiscOffset = (lastPart.NewDiscOffset - 0x20000);
}
crc.Snapshot(string.Format("{0}{1}Files+Filler", lastPartitionId ?? "", string.IsNullOrEmpty(lastPartitionId) ? "" : " "));
}
}
}
NkitFormat.LogNkitInfo(nkitDiscInfo, _log, hdr.Id, true);
foreach (CrcItem ci in crc.Crcs.Where(a => a.PatchData != null))
{
ci.PatchCrc = Crc.Compute(ci.PatchData);
}
NCrc readerCrcs;
uint validationCrc;
pc.WriterCheckPoint2Complete(out readerCrcs, out validationCrc, hdr.Data, dstPos); //wait until reader has completed and get crc patches.
if (updateRemoved && crc.Crcs.Length > 2) //freeloader wii only has update partition
{
hdr.RemoveUpdatePartition(crc.Crcs[2].Offset);
}
hdr.UpdateOffsets();
hdr.WriteString(0x200, 8, "NKIT v01"); //header and version
hdr.Write8(0x60, 1);
hdr.Write8(0x61, 1);
hdr.WriteUInt32B(0x208, readerCrcs.FullCrc(true)); //original crc
hdr.WriteUInt32B(0x210, (uint)(imageSize / 4L)); //ctx.ImageLength
hdr.WriteUInt32B(0x218, updateCrc.Value); //Update crc - Only if removed
crc.Crcs[0].PatchCrc = Crc.Compute(hdr.Data);
crc.Crcs[0].PatchData = hdr.Data;
hdr.WriteUInt32B(0x20C, CrcForce.Calculate(crc.FullCrc(true), dstPos, readerCrcs.FullCrc(true), 0x20C, 0)); //magic to force crc
crc.Crcs[0].PatchCrc = Crc.Compute(hdr.Data); //update with magic applied
pc.WriterCheckPoint3ApplyPatches(crc, false, crc.FullCrc(true), crc.FullCrc(true), this.VerifyIsWrite, "NKit Written");
}
catch (Exception ex)
{
throw pc.SetWriterException(ex, "NkitWriterWii.Write - Convert");
}
}
private long partitionStreamWrite(LongRef outSize, Stream inStream, Stream target, long size, DatData settingsData, NkitPartitionPatchInfo patchInfo, WiiHashStore hashes, Coordinator pc)
{
DatData data = settingsData;
List <string> addedFiles = new List <string>();
DateTime dt = DateTime.Now;
MemorySection hdr = MemorySection.Read(inStream, 0x440);
long srcPos = hdr.Size;
long outPos = 0;
long imageSize = 0;
try
{
if (hdr.ReadString(0, 4) == "\0\0\0\0")
{
long nullsPos = 0;
long fileLength = -1;
LongRef gapLength = new LongRef()
{
Value = -1
};
target.Write(hdr.Data, 0, (int)hdr.Size);
MemorySection sz = MemorySection.Read(inStream, 4);
srcPos += 4;
outPos += hdr.Size;
imageSize = sz.ReadUInt32B(0) * 4L;
outSize.Value = NStream.HashedLenToData(imageSize);
JunkStream junk = new JunkStream(hdr.Read(0, 4), hdr.Read8(6), outSize.Value); //SET LENGTH FROM HEADER
outPos += writeGap(ref fileLength, gapLength, ref nullsPos, ref srcPos, outPos, inStream, target, junk, true, patchInfo.ScrubManager);
}
else
{
string idVer = hdr.ReadString(0x200, 8);
if (idVer != "NKIT v01")
{
throw new Exception(string.Format("{0} not supported by this version", idVer));
}
bool isNkit = idVer.StartsWith("NKIT");
imageSize = NStream.HashedLenToData((hdr.ReadUInt32B(0x210) * 4L));
outSize.Value = imageSize;
string junkId = hdr.ReadString(0x214, 4);
JunkStream junk = new JunkStream(hdr.Read(0, 4), hdr.Read8(6), imageSize); //SET LENGTH FROM HEADER
MemorySection fst;
long mainDolAddr = hdr.ReadUInt32B(0x420);
//############################################################################
//# READ DISC START
MemorySection hdrToFst = MemorySection.Read(inStream, (hdr.ReadUInt32B(0x424) * 4L) - hdr.Size);
srcPos += hdrToFst.Size;
fst = MemorySection.Read(inStream, hdr.ReadUInt32B(0x428) * 4L);
long postFstPos = (hdr.ReadUInt32B(0x424) * 4L) + fst.Size;
srcPos += fst.Size;
hashes.WriteFlagsData(imageSize, inStream);
srcPos += hashes.FlagsLength;
patchInfo.PartitionDataHeader = hdr;
patchInfo.Fst = fst;
//############################################################################
//# WRITE DISC START
target.Write(hdr.Data, 0, (int)hdr.Size);
target.Write(hdrToFst.Data, 0, (int)hdrToFst.Size); //padded when read
target.Write(fst.Data, 0, fst.Data.Length);
hdrToFst = null; //let this be collected if needed
outPos = (hdr.ReadUInt32B(0x424) * 4L) + fst.Size;
long nullsPos = outPos + 0x1c;
string error;
List <ConvertFile> conFiles = NkitFormat.GetConvertFstFiles(inStream, size, hdr, fst, false, -1, out error);
if (conFiles == null)
{
if (error != null)
{
_log?.LogDetail(error);
}
ConvertFile cf = new ConvertFile(imageSize - srcPos, true) //result.ImageInfo.IsoSize
{
FstFile = new FstFile(null)
{
DataOffset = hdr.ReadUInt32B(0x424), Offset = hdr.ReadUInt32B(0x424), Length = (int)fst.Size
},
};
outPos += writeGap(cf, ref nullsPos, ref srcPos, outPos, inStream, target, junk, true, patchInfo.ScrubManager);
}
else
{
conFiles[0].GapLength -= hashes.FlagsLength; //fix for a few customs (no gap between the fst and the first file on the source image, but the hash mask makes it look like there is)
//########### FILES
bool firstFile = true;
for (int i = 0; i < conFiles.Count; i++) //read the files and write them out as goodFiles (possible order difference
{
ConvertFile f = conFiles[i];
FstFile ff = f.FstFile;
if (!firstFile) //fst already written
{
//Debug.WriteLine(string.Format(@"{0}>{1} : {2}>{3} : {4} : {5}/{6}", ff.DataOffset.ToString("X8"), outPos.ToString("X8"), (ff.DataOffset + ff.Length).ToString("X8"), (outPos + ff.Length).ToString("X8"), ff.Length.ToString("X8"), ff.Path, ff.Name));
if (srcPos < ff.DataOffset) //skip any padding (not written for wii currently)
{
inStream.Copy(ByteStream.Zeros, ff.DataOffset - srcPos); //skip any 32k align padding etc
srcPos += ff.DataOffset - srcPos;
}
//write file
if (ff.DataOffset == mainDolAddr)
{
hdr.WriteUInt32B(0x420, (uint)(outPos / 4L));
}
fst.WriteUInt32B(ff.OffsetInFstFile, (uint)(outPos / 4L));
outPos += copyFile(f, ref nullsPos, ref srcPos, outPos, inStream, target);
}
if (outPos < imageSize)
{
long gapLen = writeGap(f, ref nullsPos, ref srcPos, outPos, inStream, target, junk, i == 0 || i == conFiles.Count - 1, patchInfo.ScrubManager);
outPos += gapLen;
if (!firstFile)
{
fst.WriteUInt32B(ff.OffsetInFstFile + 4, (uint)(ff.Length));
}
}
firstFile = false;
}
}
}
return(srcPos);
}
catch (Exception ex)
{
throw pc.SetReaderException(ex, "NkitReaderWii.Read - partitionRead");
}
}
private long partitionWrite(Stream inStream, NCrc crc, Stream target, WiiPartitionSection pHdr, Context ctx, Coordinator pc, NkitInfo imageInfo, ScrubManager scrub, WiiHashStore hashes, long fstFileAlignment)
{
#if DEHASH
return(pHdr.NewPartitionDataLength = inStream.Copy(target, pHdr.PartitionDataLength, null));
#elif DECRYPT
inStream.Copy(target, pHdr.PartitionLength, null);
return(pHdr.NewPartitionDataLength = pHdr.PartitionDataLength);
#endif
MemorySection hdr = MemorySection.Read(inStream, 0x440);
//ProgressResult result = ctx.Result;
long mlt = 4L; //GC 1L
long logicalSize = pHdr.PartitionDataLength; //GC: ctx.ImageLength;
long physicalSize = pHdr.PartitionDataLength; //GC: result.ImageInfo.IsoSize;
string junkId = hdr.ReadString(0, 4);
//bool write = true;
List <string> addedFiles = new List <string>();
long srcPos;
long dstPos = 0;
JunkStream js = new JunkStream(junkId, hdr.Read8(6), logicalSize);
try
{
if (junkId == "\0\0\0\0")
{
srcPos = hdr.Size;
imageInfo.BytesData = srcPos;
_log?.LogDetail("Null Partition ID, preserving partition as raw");
ConvertFile cf = new ConvertFile(logicalSize - hdr.Size, true) //Size isn't important for writing //result.ImageInfo.IsoSize
{
FstFile = new FstFile(null)
{
DataOffset = hdr.Size, Offset = hdr.Size, Length = 0
},
};
long nullsPos = 0;
target.Write(hdr.Data, 0, (int)hdr.Size); //0x400
target.Write(pHdr.Header.Data, 0x2bc, 4); //copy the original partition length
dstPos += 0x440 + 4 + NkitFormat.ProcessGap(ref nullsPos, cf, ref srcPos, inStream, js, true, scrub, target, _log);
}
else
{
hdr.WriteString(0x200, 8, "NKIT v01");
hdr.WriteUInt32B(0x210, (uint)(pHdr.PartitionLength / mlt));
MemorySection fst;
List <JunkDiff> junkDiffs = new List <JunkDiff>();
long mainDolAddr = hdr.ReadUInt32B(0x420) * mlt;
//############################################################################
//# READ DISC START
target.Write(hdr.Data, 0, (int)hdr.Size);
inStream.Copy(target, (hdr.ReadUInt32B(0x424) * mlt) - hdr.Size);
//read fst with 4 byte boundary
fst = MemorySection.Read(inStream, (hdr.ReadUInt32B(0x428) * mlt) + (((hdr.ReadUInt32B(0x428) * mlt) % 4 == 0 ? 0 : 4 - ((hdr.ReadUInt32B(0x428) * mlt) % 4))));
crc.Snapshot(junkId + " PrtHdr");
target.Write(fst.Data, 0, (int)fst.Size);
crc.Snapshot(junkId + " Fst");
target.Write(hashes.FlagsToByteArray(), 0, (int)hashes.FlagsLength);
crc.Snapshot(junkId + " HashFlags");
srcPos = (hdr.ReadUInt32B(0x424) * mlt) + fst.Size;
long nullsPos = srcPos + 0x1c;
dstPos = srcPos + hashes.FlagsLength;
//create as late as possible in case id is swaped - Dairantou Smash Brothers DX (Japan) (Taikenban), Star Wars - Rogue Squadron II (Japan) (Jitsuen-you Sample)
string error;
List <ConvertFile> conFiles = NkitFormat.GetConvertFstFiles(inStream, physicalSize, hdr, fst, false, fstFileAlignment, out error);
imageInfo.BytesData = srcPos;
if (conFiles == null)
{
if (error != null)
{
_log?.LogDetail(error);
}
ConvertFile cf = new ConvertFile(pHdr.PartitionDataLength - srcPos, true) //Size isn't important for writing //result.ImageInfo.IsoSize
{
FstFile = new FstFile(null)
{
DataOffset = hdr.ReadUInt32B(0x424), Offset = hdr.ReadUInt32B(0x424), Length = (int)fst.Size
},
};
dstPos += NkitFormat.ProcessGap(ref nullsPos, cf, ref srcPos, inStream, js, true, scrub, target, _log);
}
else
{
//############################################################################
//# WRITE THE FILESYSTEM
List <ConvertFile> missing;
NkitFormat.NkitWriteFileSystem(ctx, imageInfo, mlt, inStream, ref srcPos, ref dstPos, hdr, fst, ref mainDolAddr, target, nullsPos, js, conFiles, out missing, scrub, pHdr.PartitionDataLength, _log);
dstPos += hashes.HashesToStream(target);
if (missing.Count != 0)
{
_log?.LogDetail(string.Format("{0} Junk File{1} Removed (Files listed in the FST, but not in the image)", missing.Count.ToString(), missing.Count == 1 ? "" : "s"));
foreach (ConvertFile cf in missing)
{
_log?.LogDebug(string.Format("File content is Junk {0}: {1} - Size: {2}", cf.FstFile.DataOffset.ToString("X8"), cf.FstFile.Name, cf.FstFile.Length));
}
}
crc.Crcs[crc.Crcs.Length - 1].PatchData = hashes.FlagsToByteArray();
crc.Crcs[crc.Crcs.Length - 1].PatchCrc = Crc.Compute(crc.Crcs[crc.Crcs.Length - 2].PatchData);
crc.Crcs[crc.Crcs.Length - 2].PatchData = fst.Data;
crc.Crcs[crc.Crcs.Length - 2].PatchCrc = Crc.Compute(fst.Data);
}
}
}
catch (Exception ex)
{
throw new HandledException(ex, "NkitWriterGc.Write - Convert");
}
return(dstPos);
}
public void Read(Context ctx, NStream inStream, Stream outStream, Coordinator pc)
{
try
{
WiiDiscHeaderSection hdr = (WiiDiscHeaderSection)inStream.DiscHeader;
string idVer = hdr.ReadString(0x200, 8);
if (idVer != "NKIT v01")
{
throw new Exception(string.Format("{0} not supported by this version", idVer));
}
bool isNkit = idVer.StartsWith("NKIT");
uint nkitCrc = hdr.ReadUInt32B(0x208);
long imageSize = hdr.ReadUInt32B(0x210) * 4L;
string junkId = hdr.ReadString(0x214, 4);
uint updatePartitionCrc = hdr.ReadUInt32B(0x218);
MemorySection updateRemovedFiller = null;
long discOffset = 0;
List <NkitPartitionPatchInfo> patchInfos = new List <NkitPartitionPatchInfo>();
discOffset += hdr.Size;
string lastPartitionId = null;
PartitionType lastPartitionType = PartitionType.Other;
NCrc crc = new NCrc();
long dstPos = 0;
long srcPos = hdr.Size;
ScrubManager scrubFiller = new ScrubManager(null);
bool isRecoverable = false;
using (NDisc disc = new NDisc(_log, inStream))
{
hdr.WriteUInt32B(0x200, 0);
hdr.WriteUInt32B(0x204, 0);
hdr.WriteUInt32B(0x208, 0);
hdr.WriteUInt32B(0x20C, 0);
hdr.WriteUInt32B(0x210, 0);
hdr.WriteUInt32B(0x214, 0);
hdr.WriteUInt32B(0x218, 0);
hdr.Write8(0x60, 0);
hdr.Write8(0x61, 0);
CryptoStream crcStream = new CryptoStream(outStream, crc, CryptoStreamMode.Write); //wrap to calculate crc
crcStream.Write(hdr.Data, 0, hdr.Data.Length); //write the header
pc.ReaderCheckPoint1PreWrite(null, nkitCrc); //size that will be output from this read
dstPos += hdr.Size;
crc.Snapshot("Disc Header");
foreach (WiiPartitionInfo part in hdr.Partitions) //already sorted
{
if (updatePartitionCrc != 0 && srcPos == hdr.Size) //write update partition out
{
updateRemovedFiller = MemorySection.Read(inStream, hdr.Partitions.First().DiscOffset - srcPos);
srcPos += updateRemovedFiller.Size;
WiiPartitionInfo firstPart = WiiDiscHeaderSection.CreatePartitionInfos(updateRemovedFiller, 0)?.FirstOrDefault(a => a.Type != PartitionType.Update);
string updateFileName = RecoveryData.GetUpdatePartition(ctx.Settings, updatePartitionCrc);
if (updateFileName != null)
{
using (FileStream pf = File.OpenRead(updateFileName))
{
pf.Copy(crcStream, pf.Length);
dstPos += pf.Length;
}
}
else
{
string msg = string.Format("!! Update partition *_{0} missing - Adding filler. It may be Recoverable", updatePartitionCrc.ToString("X8"));
isRecoverable = true;
_log?.LogDetail(msg);
//throw pc.SetReaderException(new HandledException("Failed to convert: " + msg));
}
ByteStream.Zeros.Copy(crcStream, firstPart.DiscOffset - dstPos); //fill full gap
dstPos += firstPart.DiscOffset - dstPos;
}
NkitPartitionPatchInfo patchInfo = new NkitPartitionPatchInfo()
{
HashGroups = new Dictionary <long, MemorySection>()
};
patchInfos.Add(patchInfo);
if (part.DiscOffset > srcPos)
{
dstPos += writeFiller(ref srcPos, dstPos, dstPos + 0x1cL, inStream, crcStream, new JunkStream(lastPartitionType != PartitionType.Data ? hdr.ReadString(0, 4) : lastPartitionId, hdr.Read8(6), lastPartitionType == PartitionType.Update ? 0 : imageSize), scrubFiller);
inStream.Copy(ByteStream.Zeros, part.DiscOffset - srcPos); //padded to 0x8000
srcPos += part.DiscOffset - srcPos;
}
part.DiscOffset = dstPos; //restore the original position
patchInfo.DiscOffset = dstPos;
patchInfo.PartitionHeader = MemorySection.Read(inStream, 0x20000);
srcPos += patchInfo.PartitionHeader.Size;
long size = patchInfo.PartitionHeader.ReadUInt32B(0x2bc) * 4L;
LongRef origSize = new LongRef()
{
Value = 0
};
WiiPartitionGroupSection wp = null;
WiiPartitionHeaderSection wh = new WiiPartitionHeaderSection(hdr, null, part.DiscOffset, patchInfo.PartitionHeader.Data, patchInfo.PartitionHeader.Data.Length);
MemorySection ph = new MemorySection(new byte[0x8000 * 64]);
long remaining = long.MaxValue;//set after first block read
int groupIndex = 0;
WiiHashStore hashes = new WiiHashStore();
patchInfo.ScrubManager = wh.ScrubManager;
bool patchBlock = false;
StreamCircularBuffer prtStream = null;
try
{
using (prtStream = new StreamCircularBuffer(0, null, null, output => srcPos += partitionStreamWrite(origSize, inStream, output, size, ctx.Dats, patchInfo, hashes, pc)))
{
int gs = 0;
int ge = 0;
int i = 0;
MemoryStream patchBlocks = null;
while (remaining > 0)
{
int blocks = (int)Math.Min(64L, remaining / 0x7c00);
for (int b = 0; b < blocks; b++)
{
prtStream.Read(ph.Data, (b * 0x8000) + 0x400, 0x7c00); //load aligned with no hashes
if (remaining == long.MaxValue) //first loop
{
remaining = origSize.Value;
if (ph.ReadString(0x400 + 0, 4) == "\0\0\0\0")
{
gs = -1;
ge = -1;
blocks = (int)Math.Min(64L, remaining / 0x7c00);
lastPartitionId = ph.ReadString(0x400 + 0, 4);
patchInfo.PartitionHeader.WriteUInt32B(0x2bc, (uint)(NStream.DataToHashedLen(origSize.Value) / 4)); //restore real size
crcStream.Write(patchInfo.PartitionHeader.Data, 0, patchInfo.PartitionHeader.Data.Length);
dstPos += patchInfo.PartitionHeader.Size;
}
else
{
gs = (int)((ph.ReadUInt32B(0x400 + 0x424) * 4L) / (0x7c00L * 64));
ge = (int)(((ph.ReadUInt32B(0x400 + 0x424) * 4L) + (ph.ReadUInt32B(0x400 + 0x428) * 4L)) / (0x7c00L * 64));
if ((int)((part.DiscOffset + (ph.ReadUInt32B(0x400 + 0x428) * 4L)) % (0x7c00L * 64)) == 0)
{
ge--; //don't load the next group if the data will end on the last byte
}
blocks = (int)Math.Min(64L, remaining / 0x7c00);
lastPartitionId = ph.ReadString(0x400 + 0, 4);
patchInfo.PartitionHeader.WriteUInt32B(0x2bc, ph.ReadUInt32B(0x400 + 0x210)); //restore real size
crcStream.Write(patchInfo.PartitionHeader.Data, 0, patchInfo.PartitionHeader.Data.Length);
dstPos += patchInfo.PartitionHeader.Size;
ph.WriteUInt32B(0x400 + 0x200, 0);
ph.WriteUInt32B(0x400 + 0x204, 0);
ph.WriteUInt32B(0x400 + 0x208, 0);
ph.WriteUInt32B(0x400 + 0x20C, 0);
ph.WriteUInt32B(0x400 + 0x210, 0);
ph.WriteUInt32B(0x400 + 0x214, 0);
ph.WriteUInt32B(0x400 + 0x218, 0);
}
wp = new WiiPartitionGroupSection(hdr, wh, ph.Data, part.DiscOffset, blocks * 0x8000, false);
wh.Initialise(wp, origSize.Value);
}
}
if (blocks < 64)
{
Array.Clear(ph.Data, blocks * 0x8000, ph.Data.Length - (blocks * 0x8000)); //clear remaining blocks
}
wp.Populate(groupIndex, ph.Data, dstPos, blocks * 0x8000);
int scrubbed = 0;
for (int bi = 0; bi < blocks; bi++)
{
wp.MarkBlockDirty(bi);
byte byt;
if (patchInfo.ScrubManager.IsBlockScrubbedScanMode(wp.Offset + (bi * 0x8000), out byt))
{
wp.SetScrubbed(bi, byt);
scrubbed++;
}
}
bool isFstBlocks = i >= gs && i <= ge;
bool reqHashes = hashes.IsPreserved(wp.Offset); //test with 0 partition based offset
repairBlocks(wp, scrubbed, blocks, false, isFstBlocks); //only test if the hashes aren't preserved (only preserved for scrubbed/customs)
if (reqHashes) //store with disc based offset
{
patchInfo.HashGroups.Add(wp.Offset + part.DiscOffset + patchInfo.PartitionHeader.Size, new MemorySection((byte[])wp.Decrypted.Clone())); //fetch the stored hashed that couldn't be recreated
}
groupIndex++;
bool inFstArea = i >= gs && i <= ge;
if (!patchBlock && (gs == i || reqHashes))
{
patchBlocks = new MemoryStream();
crc.Snapshot(lastPartitionId + " Data");
patchBlock = true;
}
else if (patchBlock && !inFstArea && !reqHashes)
{
crc.Snapshot(lastPartitionId + " Patch");
crc.Crcs.Last().PatchData = patchBlocks.ToArray();
patchBlocks.Dispose();
patchBlock = false;
}
#if DECRYPT
outStream.Write(wp.Decrypted, 0, blocks * 0x8000);
if (i >= gs && i <= ge)
{
fstBlocks.Write(wp.Decrypted, 0, blocks * 0x8000);
}
#else
crcStream.Write(wp.Encrypted, 0, blocks * 0x8000);
if (patchBlock)
{
patchBlocks.Write(wp.Encrypted, 0, blocks * 0x8000);
}
#endif
remaining -= (blocks * 0x7c00);
dstPos += (blocks * 0x8000);
i++;
}
if (patchBlock)
{
crc.Snapshot(lastPartitionId + " Patch");
crc.Crcs.Last().PatchData = patchBlocks.ToArray();
patchBlocks.Dispose();
}
}
if (origSize.Value != prtStream.WriterPosition)
{
throw pc.SetReaderException(new HandledException("Partition read did not write the full amount to the circular buffer before completing"));
}
}
catch (Exception ex)
{
if (prtStream?.WriterException != null)
{
throw pc.SetReaderException(prtStream.WriterException, "Failed reading filesystem");
}
throw pc.SetReaderException(ex, "Failed converting the filesystem");; //writer exception
}
srcPos += hashes.ReadPatchData(part.DiscOffset + patchInfo.PartitionHeader.Size, patchInfo.HashGroups, inStream);
//read hash patches
lastPartitionType = part.Type;
}
if (srcPos < inStream.Length)
{
JunkStream partJunk = new JunkStream(lastPartitionType != PartitionType.Data ? hdr.ReadString(0, 4) : lastPartitionId, hdr.Read8(6), lastPartitionType == PartitionType.Update ? 0 : imageSize);
dstPos += writeFiller(ref srcPos, dstPos, lastPartitionType == PartitionType.Update ? imageSize : dstPos + 0x1cL, inStream, crcStream, partJunk, scrubFiller);
}
}
crc.Snapshot("End");
if (updatePartitionCrc != 0)
{
hdr.Write((int)WiiDiscHeaderSection.PartitionTableOffset, updateRemovedFiller.Data, 0, (int)WiiDiscHeaderSection.PartitionTableLength); //restore the exact partition table if update was removed
}
else
{
hdr.UpdateOffsets(); //just update the table with the new offsets
}
crc.Crcs[0].PatchData = hdr.Data;
foreach (CrcItem ci in crc.Crcs.Where(a => a.PatchData != null))
{
NkitPartitionPatchInfo patchInfo = patchInfos.FirstOrDefault(a => ci.Offset >= a.DiscOffset + a.PartitionHeader.Size && ci.Offset < a.DiscOffset + a.PartitionHeader.Size + a.Size);
if (patchInfo != null)
{
patchGroups(patchInfo, hdr, ci.Offset, ci.PatchData);
}
ci.PatchCrc = Crc.Compute(ci.PatchData);
}
if (imageSize != dstPos)
{
throw pc.SetReaderException(new HandledException("Nkit image read output {0} bytes not the expected {1}!", dstPos.ToString(), imageSize.ToString()));
}
pc.ReaderCheckPoint2Complete(crc, isRecoverable, nkitCrc, crc.FullCrc(true), this.VerifyIsWrite, hdr.Data, nkitCrc == crc.FullCrc(true) ? "NKit Valid" : "NKit Invalid");
pc.ReaderCheckPoint3Complete();
}
catch (Exception ex)
{
throw pc.SetReaderException(ex, "NkitReaderWii.Read - Read and convert");
}
}
