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Add XCI, NSP and NCA loading support (#404)

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* Add XCI and NCA loading support

* Code style changes

* Add NSP loading

* Changes from code review

* Read XCIs with patches. Code style

* Add KEYS.md file

* Make file extension matching case-insensitive
This commit is contained in:
Alex Barney 2018-09-08 12:33:27 -06:00 committed by gdkchan
parent ce1d5be212
commit 3227218114
6 changed files with 360 additions and 3 deletions
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104
KEYS.md Normal file
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@ -0,0 +1,104 @@
# Keys
Keys are required for decrypting most of the file formats used by the Nintendo Switch.
Keysets are stored as text files. These 3 filenames are automatically read:
`prod.keys` - Contains common keys usedy by all Switch devices.
`console.keys` - Contains console-unique keys.
`title.keys` - Contains game-specific keys.
Ryujinx will first look for keys in `RyuFS/system`, and if it doesn't find any there it will look in `$HOME/.switch`.
A guide to assist with dumping your own keys can be found [here](https://gist.github.com/roblabla/d8358ab058bbe3b00614740dcba4f208).
## Common keys
Here is a template for a key file containing the main keys Ryujinx uses to read content files.
Both `prod.keys` and `console.keys` use this format.
```
master_key_00 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
master_key_01 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
master_key_02 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
master_key_03 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
master_key_04 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
master_key_05 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
titlekek_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
key_area_key_application_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
key_area_key_ocean_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
key_area_key_system_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
aes_kek_generation_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
aes_key_generation_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
header_kek_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
header_key_source = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
```
## Title keys
Title keys are stored in the format `rights_id,key`.
For example:
```
01000000000100000000000000000003,XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
01000000000108000000000000000003,XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
01000000000108000000000000000004,XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
```
## Complete key list
Below is a complete list of keys that are currently recognized.
\## represents a hexadecimal number between 00 and 1F
@@ represents a hexadecimal number between 00 and 03
### Common keys
```
master_key_source
keyblob_mac_key_source
package2_key_source
aes_kek_generation_source
aes_key_generation_source
key_area_key_application_source
key_area_key_ocean_source
key_area_key_system_source
titlekek_source
header_kek_source
header_key_source
sd_card_kek_source
sd_card_nca_key_source
sd_card_save_key_source
retail_specific_aes_key_source
per_console_key_source
bis_kek_source
bis_key_source_@@
header_key
xci_header_key
eticket_rsa_kek
master_key_##
package1_key_##
package2_key_##
titlekek_##
key_area_key_application_##
key_area_key_ocean_##
key_area_key_system_##
keyblob_key_source_##
keyblob_##
```
### Console-unique keys
```
secure_boot_key
tsec_key
device_key
bis_key_@@
keyblob_key_##
keyblob_mac_key_##
encrypted_keyblob_##
sd_seed
```

215
Ryujinx.HLE/HOS/Horizon.cs
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@ -1,3 +1,4 @@
using LibHac;
using Ryujinx.HLE.HOS.Font;
using Ryujinx.HLE.HOS.Kernel;
using Ryujinx.HLE.HOS.SystemState;
@ -7,6 +8,7 @@ using Ryujinx.HLE.Logging;
using System;
using System.Collections.Concurrent;
using System.IO;
using System.Linq;
namespace Ryujinx.HLE.HOS
{
@ -30,6 +32,8 @@ namespace Ryujinx.HLE.HOS
internal KEvent VsyncEvent { get; private set; }
internal Keyset KeySet { get; private set; }
public Horizon(Switch Device)
{
this.Device = Device;
@ -52,6 +56,8 @@ namespace Ryujinx.HLE.HOS
Font = new SharedFontManager(Device, FontSharedMem.PA);
VsyncEvent = new KEvent();
LoadKeySet();
}
public void LoadCart(string ExeFsDir, string RomFsFile = null)
@ -119,6 +125,179 @@ namespace Ryujinx.HLE.HOS
MainProcess.Run();
}
public void LoadXci(string XciFile)
{
FileStream File = new FileStream(XciFile, FileMode.Open, FileAccess.Read);
Xci Xci = new Xci(KeySet, File);
Nca Nca = GetXciMainNca(Xci);
if (Nca == null)
{
Device.Log.PrintError(LogClass.Loader, "Unable to load XCI");
return;
}
LoadNca(Nca);
}
private Nca GetXciMainNca(Xci Xci)
{
if (Xci.SecurePartition == null)
{
throw new InvalidDataException("Could not find XCI secure partition");
}
Nca MainNca = null;
Nca PatchNca = null;
foreach (PfsFileEntry FileEntry in Xci.SecurePartition.Files.Where(x => x.Name.EndsWith(".nca")))
{
Stream NcaStream = Xci.SecurePartition.OpenFile(FileEntry);
Nca Nca = new Nca(KeySet, NcaStream, true);
if (Nca.Header.ContentType == ContentType.Program)
{
if (Nca.Sections.Any(x => x?.Type == SectionType.Romfs))
{
MainNca = Nca;
}
else if (Nca.Sections.Any(x => x?.Type == SectionType.Bktr))
{
PatchNca = Nca;
}
}
}
if (MainNca == null)
{
Device.Log.PrintError(LogClass.Loader, "Could not find an Application NCA in the provided XCI file");
}
MainNca.SetBaseNca(PatchNca);
return MainNca;
}
public void LoadNca(string NcaFile)
{
FileStream File = new FileStream(NcaFile, FileMode.Open, FileAccess.Read);
Nca Nca = new Nca(KeySet, File, true);
LoadNca(Nca);
}
public void LoadNsp(string NspFile)
{
FileStream File = new FileStream(NspFile, FileMode.Open, FileAccess.Read);
Pfs Nsp = new Pfs(File);
PfsFileEntry TicketFile = Nsp.Files.FirstOrDefault(x => x.Name.EndsWith(".tik"));
// Load title key from the NSP's ticket in case the user doesn't have a title key file
if (TicketFile != null)
{
// todo Change when Ticket(Stream) overload is added
Ticket Ticket = new Ticket(new BinaryReader(Nsp.OpenFile(TicketFile)));
KeySet.TitleKeys[Ticket.RightsId] = Ticket.GetTitleKey(KeySet);
}
foreach (PfsFileEntry NcaFile in Nsp.Files.Where(x => x.Name.EndsWith(".nca")))
{
Nca Nca = new Nca(KeySet, Nsp.OpenFile(NcaFile), true);
if (Nca.Header.ContentType == ContentType.Program)
{
LoadNca(Nca);
return;
}
}
Device.Log.PrintError(LogClass.Loader, "Could not find an Application NCA in the provided NSP file");
}
public void LoadNca(Nca Nca)
{
NcaSection RomfsSection = Nca.Sections.FirstOrDefault(x => x?.Type == SectionType.Romfs);
NcaSection ExefsSection = Nca.Sections.FirstOrDefault(x => x?.IsExefs == true);
if (ExefsSection == null)
{
Device.Log.PrintError(LogClass.Loader, "No ExeFS found in NCA");
return;
}
if (RomfsSection == null)
{
Device.Log.PrintError(LogClass.Loader, "No RomFS found in NCA");
return;
}
Stream RomfsStream = Nca.OpenSection(RomfsSection.SectionNum, false);
Device.FileSystem.SetRomFs(RomfsStream);
Stream ExefsStream = Nca.OpenSection(ExefsSection.SectionNum, false);
Pfs Exefs = new Pfs(ExefsStream);
Npdm MetaData = null;
if (Exefs.FileExists("main.npdm"))
{
Device.Log.PrintInfo(LogClass.Loader, "Loading main.npdm...");
MetaData = new Npdm(Exefs.OpenFile("main.npdm"));
}
else
{
Device.Log.PrintWarning(LogClass.Loader, $"NPDM file not found, using default values!");
}
Process MainProcess = MakeProcess(MetaData);
void LoadNso(string Filename)
{
foreach (PfsFileEntry File in Exefs.Files.Where(x => x.Name.StartsWith(Filename)))
{
if (Path.GetExtension(File.Name) != string.Empty)
{
continue;
}
Device.Log.PrintInfo(LogClass.Loader, $"Loading {Filename}...");
string Name = Path.GetFileNameWithoutExtension(File.Name);
Nso Program = new Nso(Exefs.OpenFile(File), Name);
MainProcess.LoadProgram(Program);
}
}
if (!MainProcess.MetaData.Is64Bits)
{
throw new NotImplementedException("32-bit titles are unsupported!");
}
LoadNso("rtld");
MainProcess.SetEmptyArgs();
LoadNso("main");
LoadNso("subsdk");
LoadNso("sdk");
MainProcess.Run();
}
public void LoadProgram(string FilePath)
{
bool IsNro = Path.GetExtension(FilePath).ToLower() == ".nro";
@ -156,6 +335,42 @@ namespace Ryujinx.HLE.HOS
MainProcess.Run(IsNro);
}
public void LoadKeySet()
{
string KeyFile = null;
string TitleKeyFile = null;
string ConsoleKeyFile = null;
string Home = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
LoadSetAtPath(Path.Combine(Home, ".switch"));
LoadSetAtPath(Device.FileSystem.GetSystemPath());
KeySet = ExternalKeys.ReadKeyFile(KeyFile, TitleKeyFile, ConsoleKeyFile);
void LoadSetAtPath(string BasePath)
{
string LocalKeyFile = Path.Combine(BasePath, "prod.keys");
string LocalTitleKeyFile = Path.Combine(BasePath, "title.keys");
string LocalConsoleKeyFile = Path.Combine(BasePath, "console.keys");
if (File.Exists(LocalKeyFile))
{
KeyFile = LocalKeyFile;
}
if (File.Exists(LocalTitleKeyFile))
{
TitleKeyFile = LocalTitleKeyFile;
}
if (File.Exists(LocalConsoleKeyFile))
{
ConsoleKeyFile = LocalConsoleKeyFile;
}
}
}
public void SignalVsync() => VsyncEvent.WaitEvent.Set();
private Process MakeProcess(Npdm MetaData = null)

1
Ryujinx.HLE/Ryujinx.HLE.csproj
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@ -25,6 +25,7 @@
<ProjectReference Include="..\ChocolArm64\ChocolArm64.csproj" />
<ProjectReference Include="..\Ryujinx.Audio\Ryujinx.Audio.csproj" />
<ProjectReference Include="..\Ryujinx.Graphics\Ryujinx.Graphics.csproj" />
<PackageReference Include="LibHac" Version="0.1.1" />
</ItemGroup>
</Project>

15
Ryujinx.HLE/Switch.cs
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@ -61,6 +61,21 @@ namespace Ryujinx.HLE
System.LoadCart(ExeFsDir, RomFsFile);
}
public void LoadXci(string XciFile)
{
System.LoadXci(XciFile);
}
public void LoadNca(string NcaFile)
{
System.LoadNca(NcaFile);
}
public void LoadNsp(string NspFile)
{
System.LoadNsp(NspFile);
}
public void LoadProgram(string FileName)
{
System.LoadProgram(FileName);

6
Ryujinx.HLE/VirtualFileSystem.cs
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@ -17,6 +17,12 @@ namespace Ryujinx.HLE
RomFs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
}
public void SetRomFs(Stream RomfsStream)
{
RomFs?.Close();
RomFs = RomfsStream;
}
public string GetFullPath(string BasePath, string FileName)
{
if (FileName.StartsWith("//"))

22
Ryujinx/Ui/Program.cs
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@ -50,9 +50,25 @@ namespace Ryujinx
}
else if (File.Exists(args[0]))
{
Console.WriteLine("Loading as homebrew.");
Device.LoadProgram(args[0]);
switch (Path.GetExtension(args[0]).ToLowerInvariant())
{
case ".xci":
Console.WriteLine("Loading as XCI.");
Device.LoadXci(args[0]);
break;
case ".nca":
Console.WriteLine("Loading as NCA.");
Device.LoadNca(args[0]);
break;
case ".nsp":
Console.WriteLine("Loading as NSP.");
Device.LoadNsp(args[0]);
break;
default:
Console.WriteLine("Loading as homebrew.");
Device.LoadProgram(args[0]);
break;
}
}
}
else