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Add support to writing to the Nand class (#64)

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Somebody Whoisbored 2019-06-16 22:16:04 -07:00 committed by Alex Barney
parent 0f110cf7e8
commit fc149bf4c4
1 changed files with 13 additions and 7 deletions
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20
src/LibHac.Nand/Nand.cs
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@ -18,7 +18,9 @@ namespace LibHac.Nand
private GuidPartitionInfo User { get; } private GuidPartitionInfo User { get; }
public Keyset Keyset { get; } public Keyset Keyset { get; }
public Nand(Stream stream, Keyset keyset) public FileAccess Access { get; }
public Nand(Stream stream, Keyset keyset, FileAccess access = FileAccess.Read)
{ {
var disc = new GuidPartitionTable(stream, Geometry.Null); var disc = new GuidPartitionTable(stream, Geometry.Null);
GuidPartitionInfo[] partitions = disc.Partitions.Select(x => (GuidPartitionInfo)x).ToArray(); GuidPartitionInfo[] partitions = disc.Partitions.Select(x => (GuidPartitionInfo)x).ToArray();
@ -37,33 +39,37 @@ namespace LibHac.Nand
System = partitions.FirstOrDefault(x => x.Name == "SYSTEM"); System = partitions.FirstOrDefault(x => x.Name == "SYSTEM");
User = partitions.FirstOrDefault(x => x.Name == "USER"); User = partitions.FirstOrDefault(x => x.Name == "USER");
Keyset = keyset; Keyset = keyset;
Access = access;
} }
public Stream OpenProdInfo() public Stream OpenProdInfo()
{ {
IStorage encStorage = ProdInfo.Open().AsStorage(); IStorage encStorage = ProdInfo.Open().AsStorage();
var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[0], 0x4000, true), 0x4000, 4, true); var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[0], 0x4000, true), 0x4000, 4, true);
return decStorage.AsStream(FileAccess.Read); return decStorage.AsStream(Access);
} }
public FatFileSystemProvider OpenProdInfoF() public FatFileSystemProvider OpenProdInfoF()
{ {
IStorage encStorage = ProdInfoF.Open().AsStorage(); IStorage encStorage = ProdInfoF.Open().AsStorage();
var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[0], 0x4000, true), 0x4000, 4, true); var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[0], 0x4000, true), 0x4000, 4, true);
var fat = new FatFileSystem(decStorage.AsStream(FileAccess.Read), Ownership.None); var fat = new FatFileSystem(decStorage.AsStream(Access), Ownership.None);
return new FatFileSystemProvider(fat); return new FatFileSystemProvider(fat);
} }
public IStorage OpenPackage2(int index) public IStorage OpenPackage2(int index)
{ {
return Package2[index].Open().AsStorage().AsReadOnly(); IStorage storage = Package2[index].Open().AsStorage();
if (Access == FileAccess.Read)
return storage.AsReadOnly();
return storage;
} }
public FatFileSystemProvider OpenSafePartition() public FatFileSystemProvider OpenSafePartition()
{ {
IStorage encStorage = Safe.Open().AsStorage(); IStorage encStorage = Safe.Open().AsStorage();
var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[1], 0x4000, true), 0x4000, 4, true); var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[1], 0x4000, true), 0x4000, 4, true);
var fat = new FatFileSystem(decStorage.AsStream(FileAccess.Read), Ownership.None); var fat = new FatFileSystem(decStorage.AsStream(Access), Ownership.None);
return new FatFileSystemProvider(fat); return new FatFileSystemProvider(fat);
} }
@ -71,7 +77,7 @@ namespace LibHac.Nand
{ {
IStorage encStorage = System.Open().AsStorage(); IStorage encStorage = System.Open().AsStorage();
var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[2], 0x4000, true), 0x4000, 4, true); var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[2], 0x4000, true), 0x4000, 4, true);
var fat = new FatFileSystem(decStorage.AsStream(FileAccess.Read), Ownership.None); var fat = new FatFileSystem(decStorage.AsStream(Access), Ownership.None);
return new FatFileSystemProvider(fat); return new FatFileSystemProvider(fat);
} }
@ -79,7 +85,7 @@ namespace LibHac.Nand
{ {
IStorage encStorage = User.Open().AsStorage(); IStorage encStorage = User.Open().AsStorage();
var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[3], 0x4000, true), 0x4000, 4, true); var decStorage = new CachedStorage(new Aes128XtsStorage(encStorage, Keyset.BisKeys[3], 0x4000, true), 0x4000, 4, true);
var fat = new FatFileSystem(decStorage.AsStream(FileAccess.Read), Ownership.None); var fat = new FatFileSystem(decStorage.AsStream(Access), Ownership.None);
return new FatFileSystemProvider(fat); return new FatFileSystemProvider(fat);
} }
} }