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Barebones cnmt reading

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This commit is contained in:
Alex Barney 2018-06-22 21:02:19 -05:00
parent fbe62d7d7f
commit 88f72a3527
2 changed files with 97 additions and 3 deletions
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18
hactoolnet/Program.cs
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@ -59,7 +59,7 @@ namespace hactoolnet
var sdfs = new SdFs(keyset, args[2]);
var ncas = sdfs.ReadAllNca().ToArray();
var metadata = new List<byte[]>();
var metadata = new List<Cnmt>();
using (var progress = new ProgressBar())
{
@ -76,12 +76,24 @@ namespace hactoolnet
var path = Path.Combine("meta", entry.Name);
Directory.CreateDirectory(Path.GetDirectoryName(path));
var file = pfs0.GetFile(entry.Index);
metadata.Add(file);
metadata.Add(new Cnmt(new MemoryStream(file)));
File.WriteAllBytes(path, file);
progress.LogMessage(path);
}
}
}
foreach (var meta in metadata.OrderBy(x => x.TitleId))
{
progress.LogMessage($"{meta.TitleId:X16} v{meta.TitleVersion} {meta.Type}");
foreach (var content in meta.ContentEntries)
{
// Add an actual hexdump function
progress.LogMessage($" {BitConverter.ToString(content.NcaId).Replace("-", "")}.nca {content.Type}");
}
progress.LogMessage("");
}
}
}
}

82
libhac/Cnmt.cs Normal file
View file

@ -0,0 +1,82 @@
using System.IO;
namespace libhac
{
public class Cnmt
{
public ulong TitleId { get; set; }
public uint TitleVersion { get; set; }
public TitleType Type { get; set; }
public byte FieldD { get; set; }
public int TableOffset { get; set; }
public int ContentEntryCount { get; set; }
public int MetaEntryCount { get; set; }
public CnmtContentEntry[] ContentEntries { get; set; }
public Cnmt(Stream file)
{
using (var reader = new BinaryReader(file))
{
TitleId = reader.ReadUInt64();
TitleVersion = reader.ReadUInt32();
Type = (TitleType)reader.ReadByte();
FieldD = reader.ReadByte();
TableOffset = reader.ReadUInt16();
ContentEntryCount = reader.ReadUInt16();
MetaEntryCount = reader.ReadUInt16();
file.Position += 12;
file.Position += TableOffset;
ContentEntries = new CnmtContentEntry[ContentEntryCount];
for (int i = 0; i < ContentEntryCount; i++)
{
ContentEntries[i] = new CnmtContentEntry(reader);
}
}
}
}
public class CnmtContentEntry
{
public byte[] Hash { get; set; }
public byte[] NcaId { get; set; }
public long Size { get; set; }
public CnmtContentType Type { get; set; }
public CnmtContentEntry(BinaryReader reader)
{
Hash = reader.ReadBytes(0x20);
NcaId = reader.ReadBytes(0x10);
Size = reader.ReadUInt32();
Size |= ((long)reader.ReadUInt16() << 32);
Type = (CnmtContentType)reader.ReadByte();
reader.BaseStream.Position += 1;
}
}
public enum CnmtContentType
{
Meta,
Program,
Data,
Control,
OfflineManualHtml,
LegalHtml,
UpdatePatch
}
public enum TitleType
{
SystemProgram = 1,
SystemDataArchive,
SystemUpdate,
FirmwarePackageA,
FirmwarePackageB,
RegularApplication = 0x80,
UpdateTitle,
AddOnContent,
DeltaTitle
}
}