// todo: Implement NcaReader and other Nca classes
public Result Create(out IStorage storage, out NcaFsHeader fsHeader, Nca nca, int fsIndex, bool isCodeFs)
{
storage = default;
fsHeader = default;
Result rc = OpenStorage(out IStorage storageTemp, nca, fsIndex);
if (rc.IsFailure())
{
return(rc);
}
if (isCodeFs)
{
using (var codeFs = new PartitionFileSystemCore <StandardEntry>())
{
rc = codeFs.Initialize(storageTemp);
if (rc.IsFailure())
{
return(rc);
}
rc = VerifyAcidSignature(codeFs, nca);
if (rc.IsFailure())
{
return(rc);
}
}
}
storage = storageTemp;
fsHeader = nca.GetFsHeader(fsIndex);
return(Result.Success);
}
// todo: Implement NcaReader and other Nca classes
public Result Create(out ReferenceCountedDisposable <IStorage> storage, out NcaFsHeader fsHeader, Nca nca,
int fsIndex, bool isCodeFs)
{
UnsafeHelpers.SkipParamInit(out storage, out fsHeader);
Result rc = OpenStorage(out IStorage storageTemp, nca, fsIndex);
if (rc.IsFailure())
{
return(rc);
}
if (isCodeFs)
{
using (var codeFs = new PartitionFileSystemCore <StandardEntry>())
{
rc = codeFs.Initialize(storageTemp);
if (rc.IsFailure())
{
return(rc);
}
rc = VerifyAcidSignature(codeFs, nca);
if (rc.IsFailure())
{
return(rc);
}
}
}
storage = new ReferenceCountedDisposable <IStorage>(storageTemp);
fsHeader = nca.GetFsHeader(fsIndex);
return(Result.Success);
}
private static string Print(this NcaHolder ncaHolder)
{
Nca nca = ncaHolder.Nca;
int masterKey = GetMasterKeyRevisionFromKeyGeneration(nca.Header.KeyGeneration);
int colLen = 36;
var sb = new StringBuilder();
sb.AppendLine();
sb.AppendLine("NCA:");
PrintItem(sb, colLen, "Magic:", MagicToString(nca.Header.Magic));
PrintItem(sb, colLen, $"Fixed-Key Signature{nca.VerifyHeaderSignature().GetValidityString()}:", nca.Header.Signature1.ToArray());
PrintItem(sb, colLen, $"NPDM Signature{nca.VerifySignature2().GetValidityString()}:", nca.Header.Signature2.ToArray());
PrintItem(sb, colLen, "Content Size:", $"0x{nca.Header.NcaSize:x12}");
PrintItem(sb, colLen, "TitleID:", $"{nca.Header.TitleId:X16}");
if (nca.CanOpenSection(NcaSectionType.Code))
{
IFileSystem fs = nca.OpenFileSystem(NcaSectionType.Code, IntegrityCheckLevel.None);
Result r = fs.OpenFile(out IFile file, "/main.npdm".ToU8String(), OpenMode.Read);
if (r.IsSuccess())
{
var npdm = new NpdmBinary(file.AsStream(), null);
PrintItem(sb, colLen, "Title Name:", npdm.TitleName);
}
}
PrintItem(sb, colLen, "SDK Version:", nca.Header.SdkVersion);
PrintItem(sb, colLen, "Distribution type:", nca.Header.DistributionType.Print());
PrintItem(sb, colLen, "Content Type:", nca.Header.ContentType.Print());
PrintItem(sb, colLen, "Master Key Revision:", $"{masterKey} ({Utilities.GetKeyRevisionSummary(masterKey)})");
PrintItem(sb, colLen, "Encryption Type:", $"{(nca.Header.HasRightsId ? "Titlekey crypto" : "Standard crypto")}");
if (nca.Header.HasRightsId)
{
PrintItem(sb, colLen, "Rights ID:", nca.Header.RightsId.ToArray());
}
else
{
PrintKeyArea();
}
PrintSections();
return(sb.ToString());
void PrintKeyArea()
{
NcaVersion version = nca.Header.FormatVersion;
if (version == NcaVersion.Nca0RsaOaep)
{
sb.AppendLine("Key Area (Encrypted):");
PrintItem(sb, colLen, "Key (RSA-OAEP Encrypted):", nca.Header.GetKeyArea().ToArray());
sb.AppendLine("Key Area (Decrypted):");
for (int i = 0; i < 2; i++)
{
PrintItem(sb, colLen, $" Key {i} (Decrypted):", nca.GetDecryptedKey(i));
}
}
else if (version == NcaVersion.Nca0FixedKey)
{
sb.AppendLine("Key Area:");
for (int i = 0; i < 2; i++)
{
PrintItem(sb, colLen, $" Key {i}:", nca.Header.GetEncryptedKey(i).ToArray());
}
}
else
{
int keyCount = version == NcaVersion.Nca0 ? 2 : 4;
PrintItem(sb, colLen, "Key Area Encryption Key:", nca.Header.KeyAreaKeyIndex);
sb.AppendLine("Key Area (Encrypted):");
for (int i = 0; i < keyCount; i++)
{
PrintItem(sb, colLen, $" Key {i} (Encrypted):", nca.Header.GetEncryptedKey(i).ToArray());
}
sb.AppendLine("Key Area (Decrypted):");
for (int i = 0; i < keyCount; i++)
{
PrintItem(sb, colLen, $" Key {i} (Decrypted):", nca.GetDecryptedKey(i));
}
}
}
void PrintSections()
{
sb.AppendLine("Sections:");
for (int i = 0; i < 4; i++)
{
if (!nca.Header.IsSectionEnabled(i))
{
continue;
}
NcaFsHeader sectHeader = nca.GetFsHeader(i);
bool isExefs = nca.Header.ContentType == NcaContentType.Program && i == 0;
sb.AppendLine($" Section {i}:");
PrintItem(sb, colLen, " Offset:", $"0x{nca.Header.GetSectionStartOffset(i):x12}");
PrintItem(sb, colLen, " Size:", $"0x{nca.Header.GetSectionSize(i):x12}");
PrintItem(sb, colLen, " Partition Type:", GetPartitionType(sectHeader, isExefs, nca.Header.IsNca0()));
PrintItem(sb, colLen, " Section CTR:", $"{sectHeader.Counter:x16}");
PrintItem(sb, colLen, " Section Validity:", $"{ncaHolder.Validities[i].Print()}");
switch (sectHeader.HashType)
{
case NcaHashType.Sha256:
PrintSha256Hash(sectHeader, i);
break;
case NcaHashType.Ivfc:
Validity masterHashValidity = nca.ValidateSectionMasterHash(i);
PrintIvfcHashNew(sb, colLen, 8, sectHeader.GetIntegrityInfoIvfc(), IntegrityStorageType.RomFs, masterHashValidity);
break;
default:
sb.AppendLine(" Unknown/invalid superblock!");
break;
}
}
}
public static void Process(Context ctx)
{
using (IStorage file = new LocalStorage(ctx.Options.InFile, FileAccess.Read))
{
var nca = new Nca(ctx.KeySet, file);
Nca baseNca = null;
var ncaHolder = new NcaHolder {
Nca = nca
};
if (ctx.Options.HeaderOut != null)
{
using (var outHeader = new FileStream(ctx.Options.HeaderOut, FileMode.Create, FileAccess.ReadWrite))
{
nca.OpenDecryptedHeaderStorage().Slice(0, 0xc00).CopyToStream(outHeader);
}
}
if (ctx.Options.BaseNca != null)
{
IStorage baseFile = new LocalStorage(ctx.Options.BaseNca, FileAccess.Read);
baseNca = new Nca(ctx.KeySet, baseFile);
}
for (int i = 0; i < 3; i++)
{
if (ctx.Options.SectionOut[i] != null)
{
OpenStorage(i).WriteAllBytes(ctx.Options.SectionOut[i], ctx.Logger);
}
if (ctx.Options.SectionOutDir[i] != null)
{
FileSystemClient fs = ctx.Horizon.Fs;
string mountName = $"section{i}";
fs.Register(mountName.ToU8Span(), OpenFileSystem(i));
fs.Register("output".ToU8Span(), new LocalFileSystem(ctx.Options.SectionOutDir[i]));
fs.Impl.EnableFileSystemAccessorAccessLog(mountName.ToU8Span());
fs.Impl.EnableFileSystemAccessorAccessLog("output".ToU8Span());
FsUtils.CopyDirectoryWithProgress(fs, (mountName + ":/").ToU8Span(), "output:/".ToU8Span(), logger: ctx.Logger).ThrowIfFailure();
fs.Unmount(mountName.ToU8Span());
fs.Unmount("output".ToU8Span());
}
if (ctx.Options.Validate && nca.SectionExists(i))
{
if (nca.GetFsHeader(i).IsPatchSection() && baseNca != null)
{
ncaHolder.Validities[i] = baseNca.VerifySection(nca, i, ctx.Logger);
}
else
{
ncaHolder.Validities[i] = nca.VerifySection(i, ctx.Logger);
}
}
}
if (ctx.Options.ListRomFs && nca.CanOpenSection(NcaSectionType.Data))
{
IFileSystem romfs = OpenFileSystemByType(NcaSectionType.Data);
foreach (DirectoryEntryEx entry in romfs.EnumerateEntries())
{
ctx.Logger.LogMessage(entry.FullPath);
}
}
if (ctx.Options.RomfsOutDir != null || ctx.Options.RomfsOut != null || ctx.Options.ReadBench)
{
if (!nca.SectionExists(NcaSectionType.Data))
{
ctx.Logger.LogMessage("NCA has no RomFS section");
return;
}
if (ctx.Options.RomfsOut != null)
{
OpenStorageByType(NcaSectionType.Data).WriteAllBytes(ctx.Options.RomfsOut, ctx.Logger);
}
if (ctx.Options.RomfsOutDir != null)
{
FileSystemClient fs = ctx.Horizon.Fs;
fs.Register("rom".ToU8Span(), OpenFileSystemByType(NcaSectionType.Data));
fs.Register("output".ToU8Span(), new LocalFileSystem(ctx.Options.RomfsOutDir));
fs.Impl.EnableFileSystemAccessorAccessLog("rom".ToU8Span());
fs.Impl.EnableFileSystemAccessorAccessLog("output".ToU8Span());
FsUtils.CopyDirectoryWithProgress(fs, "rom:/".ToU8Span(), "output:/".ToU8Span(), logger: ctx.Logger).ThrowIfFailure();
fs.Unmount("rom".ToU8Span());
fs.Unmount("output".ToU8Span());
}
if (ctx.Options.ReadBench)
{
long bytesToRead = 1024L * 1024 * 1024 * 5;
IStorage storage = OpenStorageByType(NcaSectionType.Data);
storage.GetSize(out long sectionSize).ThrowIfFailure();
var dest = new NullStorage(sectionSize);
int iterations = (int)(bytesToRead / sectionSize) + 1;
ctx.Logger.LogMessage(iterations.ToString());
ctx.Logger.StartNewStopWatch();
for (int i = 0; i < iterations; i++)
{
storage.CopyTo(dest, ctx.Logger);
ctx.Logger.LogMessage(ctx.Logger.GetRateString());
}
ctx.Logger.PauseStopWatch();
ctx.Logger.LogMessage(ctx.Logger.GetRateString());
}
}
if (ctx.Options.ExefsOutDir != null || ctx.Options.ExefsOut != null)
{
if (nca.Header.ContentType != NcaContentType.Program)
{
ctx.Logger.LogMessage("NCA's content type is not \"Program\"");
return;
}
if (!nca.SectionExists(NcaSectionType.Code))
{
ctx.Logger.LogMessage("Could not find an ExeFS section");
return;
}
if (ctx.Options.ExefsOut != null)
{
OpenStorageByType(NcaSectionType.Code).WriteAllBytes(ctx.Options.ExefsOut, ctx.Logger);
}
if (ctx.Options.ExefsOutDir != null)
{
FileSystemClient fs = ctx.Horizon.Fs;
fs.Register("code".ToU8Span(), OpenFileSystemByType(NcaSectionType.Code));
fs.Register("output".ToU8Span(), new LocalFileSystem(ctx.Options.ExefsOutDir));
fs.Impl.EnableFileSystemAccessorAccessLog("code".ToU8Span());
fs.Impl.EnableFileSystemAccessorAccessLog("output".ToU8Span());
FsUtils.CopyDirectoryWithProgress(fs, "code:/".ToU8Span(), "output:/".ToU8Span(), logger: ctx.Logger).ThrowIfFailure();
fs.Unmount("code".ToU8Span());
fs.Unmount("output".ToU8Span());
}
}
if (ctx.Options.PlaintextOut != null)
{
nca.OpenDecryptedNca().WriteAllBytes(ctx.Options.PlaintextOut, ctx.Logger);
}
if (ctx.Options.CiphertextOut != null)
{
nca.OpenEncryptedNca().WriteAllBytes(ctx.Options.CiphertextOut, ctx.Logger);
}
if (!ctx.Options.ReadBench)
{
ctx.Logger.LogMessage(ncaHolder.Print());
}
IStorage OpenStorage(int index)
{
if (ctx.Options.Raw)
{
if (baseNca != null)
{
return(baseNca.OpenRawStorageWithPatch(nca, index));
}
return(nca.OpenRawStorage(index));
}
if (baseNca != null)
{
return(baseNca.OpenStorageWithPatch(nca, index, ctx.Options.IntegrityLevel));
}
return(nca.OpenStorage(index, ctx.Options.IntegrityLevel));
}
IFileSystem OpenFileSystem(int index)
{
if (baseNca != null)
{
return(baseNca.OpenFileSystemWithPatch(nca, index, ctx.Options.IntegrityLevel));
}
return(nca.OpenFileSystem(index, ctx.Options.IntegrityLevel));
}
IStorage OpenStorageByType(NcaSectionType type)
{
return(OpenStorage(Nca.GetSectionIndexFromType(type, nca.Header.ContentType)));
}
IFileSystem OpenFileSystemByType(NcaSectionType type)
{
return(OpenFileSystem(Nca.GetSectionIndexFromType(type, nca.Header.ContentType)));
}
}
}