From fe8fbb6fb9b85a528ddfa4848ec8e35fd9a5e9a5 Mon Sep 17 00:00:00 2001
From: emmauss <emmausssss@gmail.com>
Date: Sun, 18 Nov 2018 21:37:41 +0200
Subject: Implement ContentManager and related services (#438)

* Implement contentmanager and related services

* small changes

* read system firmware version from nand

* add pfs support, write directoryentry info for romfs files

* add file check in fsp-srv:8

* add support for open fs of internal files

* fix filename when accessing pfs

* use switch style paths for contentpath

* close nca after verifying type

* removed publishing profiles, align directory entry

* fix style

* lots of style fixes

* yasf(yet another style fix)

* yasf(yet another style fix) plus symbols

* enforce path check on every fs access

* change enum type to default

* fix typo
---
 .../HOS/Services/Set/ISystemSettingsServer.cs      | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)

(limited to 'Ryujinx.HLE/HOS/Services/Set')

diff --git a/Ryujinx.HLE/HOS/Services/Set/ISystemSettingsServer.cs b/Ryujinx.HLE/HOS/Services/Set/ISystemSettingsServer.cs
index 070a4d5e..416ea1fb 100644
--- a/Ryujinx.HLE/HOS/Services/Set/ISystemSettingsServer.cs
+++ b/Ryujinx.HLE/HOS/Services/Set/ISystemSettingsServer.cs
@@ -5,6 +5,8 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
+using LibHac;
+using Ryujinx.HLE.FileSystem;
 
 namespace Ryujinx.HLE.HOS.Services.Set
 {
@@ -18,6 +20,7 @@ namespace Ryujinx.HLE.HOS.Services.Set
         {
             m_Commands = new Dictionary<int, ServiceProcessRequest>()
             {
+                { 3,  GetFirmwareVersion  },
                 { 4,  GetFirmwareVersion2  },
                 { 23, GetColorSetId        },
                 { 24, SetColorSetId        },
@@ -25,11 +28,27 @@ namespace Ryujinx.HLE.HOS.Services.Set
             };
         }
 
+        // GetFirmwareVersion() -> buffer<nn::settings::system::FirmwareVersion, 0x1a, 0x100>
+        public static long GetFirmwareVersion(ServiceCtx Context)
+        {
+            return GetFirmwareVersion2(Context);
+        }
+
+        // GetFirmwareVersion2() -> buffer<nn::settings::system::FirmwareVersion, 0x1a, 0x100>
         public static long GetFirmwareVersion2(ServiceCtx Context)
         {
             long ReplyPos  = Context.Request.RecvListBuff[0].Position;
             long ReplySize = Context.Request.RecvListBuff[0].Size;
 
+            byte[] FirmwareData = GetFirmwareData(Context.Device);
+
+            if (FirmwareData != null)
+            {
+                Context.Memory.WriteBytes(ReplyPos, FirmwareData);
+
+                return 0;
+            }
+
             const byte MajorFWVersion = 0x03;
             const byte MinorFWVersion = 0x00;
             const byte MicroFWVersion = 0x00;
@@ -74,6 +93,7 @@ namespace Ryujinx.HLE.HOS.Services.Set
             return 0;
         }
 
+        // GetColorSetId() -> i32
         public static long GetColorSetId(ServiceCtx Context)
         {
             Context.ResponseData.Write((int)Context.Device.System.State.ThemeColor);
@@ -81,6 +101,7 @@ namespace Ryujinx.HLE.HOS.Services.Set
             return 0;
         }
 
+        // GetColorSetId() -> i32
         public static long SetColorSetId(ServiceCtx Context)
         {
             int ColorSetId = Context.RequestData.ReadInt32();
@@ -90,6 +111,7 @@ namespace Ryujinx.HLE.HOS.Services.Set
             return 0;
         }
 
+        // GetSettingsItemValue(buffer<nn::settings::SettingsName, 0x19, 0x48>, buffer<nn::settings::SettingsItemKey, 0x19, 0x48>) -> (u64, buffer<unknown, 6, 0>)
         public static long GetSettingsItemValue(ServiceCtx Context)
         {
             long ClassPos  = Context.Request.PtrBuff[0].Position;
@@ -148,5 +170,44 @@ namespace Ryujinx.HLE.HOS.Services.Set
 
             return 0;
         }
+
+        public static byte[] GetFirmwareData(Switch Device)
+        {
+            byte[] Data        = null;
+            long   TitleId     = 0x0100000000000809;
+            string ContentPath = Device.System.ContentManager.GetInstalledContentPath(TitleId, StorageId.NandSystem, ContentType.Data);
+
+            if(string.IsNullOrWhiteSpace(ContentPath))
+            {
+                return null;
+            }
+
+            string     FirmwareTitlePath = Device.FileSystem.SwitchPathToSystemPath(ContentPath);
+            FileStream FirmwareStream    = File.Open(FirmwareTitlePath, FileMode.Open, FileAccess.Read);
+            Nca        FirmwareContent   = new Nca(Device.System.KeySet, FirmwareStream, false);
+            Stream     RomFsStream       = FirmwareContent.OpenSection(0, false, Device.System.FsIntegrityCheckLevel);
+
+            if(RomFsStream == null)
+            {
+                return null;
+            }
+
+            Romfs FirmwareRomFs = new Romfs(RomFsStream);
+
+            using(MemoryStream MemoryStream = new MemoryStream())
+            {
+                using (Stream FirmwareFile = FirmwareRomFs.OpenFile("/file"))
+                {
+                    FirmwareFile.CopyTo(MemoryStream);
+                }
+
+                Data = MemoryStream.ToArray();
+            }
+
+            FirmwareContent.Dispose();
+            FirmwareStream.Dispose();
+
+            return Data;
+        }
     }
 }
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