1 files changed, 120 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/LibHacHorizonManager.cs b/src/Ryujinx.HLE/HOS/LibHacHorizonManager.cs
new file mode 100644
index 00000000..8fde5dd6
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/LibHacHorizonManager.cs
@@ -0,0 +1,120 @@
+using LibHac;
+using LibHac.Bcat;
+using LibHac.Common;
+using LibHac.Fs.Fsa;
+using LibHac.Fs.Shim;
+using LibHac.FsSrv.Impl;
+using LibHac.Loader;
+using LibHac.Ncm;
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.HOS.Services.Arp;
+using System;
+using StorageId = LibHac.Ncm.StorageId;
+
+namespace Ryujinx.HLE.HOS
+{
+    public class LibHacHorizonManager
+    {
+        private LibHac.Horizon Server { get; set; }
+
+        public HorizonClient RyujinxClient     { get; private set; }
+        public HorizonClient ApplicationClient { get; private set; }
+        public HorizonClient AccountClient     { get; private set; }
+        public HorizonClient AmClient          { get; private set; }
+        public HorizonClient BcatClient        { get; private set; }
+        public HorizonClient FsClient          { get; private set; }
+        public HorizonClient NsClient          { get; private set; }
+        public HorizonClient PmClient          { get; private set; }
+        public HorizonClient SdbClient         { get; private set; }
+
+        private SharedRef<LibHacIReader> _arpIReader;
+        internal LibHacIReader ArpIReader => _arpIReader.Get;
+
+        public LibHacHorizonManager()
+        {
+            InitializeServer();
+        }
+
+        private void InitializeServer()
+        {
+            Server = new LibHac.Horizon(new HorizonConfiguration());
+
+            RyujinxClient = Server.CreatePrivilegedHorizonClient();
+        }
+
+        public void InitializeArpServer()
+        {
+            _arpIReader.Reset(new LibHacIReader());
+            RyujinxClient.Sm.RegisterService(new LibHacArpServiceObject(ref _arpIReader), "arp:r").ThrowIfFailure();
+        }
+
+        public void InitializeBcatServer()
+        {
+            BcatClient = Server.CreateHorizonClient(new ProgramLocation(SystemProgramId.Bcat, StorageId.BuiltInSystem), BcatFsPermissions);
+
+            _ = new BcatServer(BcatClient);
+        }
+
+        public void InitializeFsServer(VirtualFileSystem virtualFileSystem)
+        {
+            virtualFileSystem.InitializeFsServer(Server, out var fsClient);
+
+            FsClient = fsClient;
+        }
+
+        public void InitializeSystemClients()
+        {
+            PmClient      = Server.CreatePrivilegedHorizonClient();
+            AccountClient = Server.CreateHorizonClient(new ProgramLocation(SystemProgramId.Account, StorageId.BuiltInSystem), AccountFsPermissions);
+            AmClient      = Server.CreateHorizonClient(new ProgramLocation(SystemProgramId.Am,      StorageId.BuiltInSystem), AmFsPermissions);
+            NsClient      = Server.CreateHorizonClient(new ProgramLocation(SystemProgramId.Ns,      StorageId.BuiltInSystem), NsFsPermissions);
+            SdbClient     = Server.CreateHorizonClient(new ProgramLocation(SystemProgramId.Sdb,     StorageId.BuiltInSystem), SdbFacData, SdbFacDescriptor);
+        }
+
+        public void InitializeApplicationClient(ProgramId programId, in Npdm npdm)
+        {
+            ApplicationClient = Server.CreateHorizonClient(new ProgramLocation(programId, StorageId.BuiltInUser), npdm.FsAccessControlData, npdm.FsAccessControlDescriptor);
+        }
+
+        private static AccessControlBits.Bits AccountFsPermissions => AccessControlBits.Bits.SystemSaveData |
+                                                                      AccessControlBits.Bits.GameCard |
+                                                                      AccessControlBits.Bits.SaveDataMeta |
+                                                                      AccessControlBits.Bits.GetRightsId;
+
+        private static AccessControlBits.Bits AmFsPermissions => AccessControlBits.Bits.SaveDataManagement |
+                                                                 AccessControlBits.Bits.CreateSaveData |
+                                                                 AccessControlBits.Bits.SystemData;
+        private static AccessControlBits.Bits BcatFsPermissions => AccessControlBits.Bits.SystemSaveData;
+
+        private static AccessControlBits.Bits NsFsPermissions => AccessControlBits.Bits.ApplicationInfo |
+                                                                 AccessControlBits.Bits.SystemSaveData |
+                                                                 AccessControlBits.Bits.GameCard |
+                                                                 AccessControlBits.Bits.SaveDataManagement |
+                                                                 AccessControlBits.Bits.ContentManager |
+                                                                 AccessControlBits.Bits.ImageManager |
+                                                                 AccessControlBits.Bits.SystemSaveDataManagement |
+                                                                 AccessControlBits.Bits.SystemUpdate |
+                                                                 AccessControlBits.Bits.SdCard |
+                                                                 AccessControlBits.Bits.FormatSdCard |
+                                                                 AccessControlBits.Bits.GetRightsId |
+                                                                 AccessControlBits.Bits.RegisterProgramIndexMapInfo |
+                                                                 AccessControlBits.Bits.MoveCacheStorage;
+
+        // Sdb has save data access control info so we can't store just its access control bits
+        private static ReadOnlySpan<byte> SdbFacData => new byte[]
+        {
+            0x01, 0x00, 0x00, 0x00, 0x08, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
+            0x03, 0x03, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0x10, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x01
+        };
+
+        private static ReadOnlySpan<byte> SdbFacDescriptor => new byte[]
+        {
+            0x01, 0x00, 0x02, 0x00, 0x08, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x01, 0x09, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
+        };
+    }
+}
+\ No newline at end of file