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feat: switch framework hooks from vtable to sigs

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goaaats 2022-06-20 22:08:50 +02:00
parent 92518e22b0
commit 3397b608d0
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GPG key ID: 49E2AA8C6A76498B
8 changed files with 21 additions and 94 deletions
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1
Dalamud.Injector/EntryPoint.cs
View file

@ -324,6 +324,7 @@ namespace Dalamud.Injector
startInfo.BootLogPath = GetLogPath("dalamud.boot");
startInfo.BootEnabledGameFixes = new List<string> { "prevent_devicechange_crashes", "disable_game_openprocess_access_check", "redirect_openprocess" };
startInfo.BootDotnetOpenProcessHookMode = 0;
// startInfo.BootWaitMessageBox = 2;
// startInfo.BootUnhookDlls = new List<string>() { "kernel32.dll", "ntdll.dll", "user32.dll" };
return startInfo;

31
Dalamud/Game/Framework.cs
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@ -49,14 +49,9 @@ namespace Dalamud.Game
this.Address = new FrameworkAddressResolver();
this.Address.Setup();
Log.Verbose($"Framework address 0x{this.Address.BaseAddress.ToInt64():X}");
if (this.Address.BaseAddress == IntPtr.Zero)
{
throw new InvalidOperationException("Framework is not initalized yet.");
}
// Hook virtual functions
this.HookVTable();
this.updateHook = new Hook<OnUpdateDetour>(this.Address.TickAddress, this.HandleFrameworkUpdate);
this.destroyHook = new Hook<OnDestroyDetour>(this.Address.FreeAddress, this.HandleFrameworkDestroy);
this.realDestroyHook = new Hook<OnRealDestroyDelegate>(this.Address.DestroyAddress, this.HandleRealDestroy);
}
/// <summary>
@ -241,26 +236,6 @@ namespace Dalamud.Game
statsStopwatch.Reset();
}
private void HookVTable()
{
var vtable = Marshal.ReadIntPtr(this.Address.BaseAddress);
// Virtual function layout:
// .rdata:00000001411F1FE0 dq offset Xiv__Framework___dtor
// .rdata:00000001411F1FE8 dq offset Xiv__Framework__init
// .rdata:00000001411F1FF0 dq offset Xiv__Framework__destroy
// .rdata:00000001411F1FF8 dq offset Xiv__Framework__free
// .rdata:00000001411F2000 dq offset Xiv__Framework__update
var pUpdate = Marshal.ReadIntPtr(vtable, IntPtr.Size * 4);
this.updateHook = new Hook<OnUpdateDetour>(pUpdate, this.HandleFrameworkUpdate);
var pDestroy = Marshal.ReadIntPtr(vtable, IntPtr.Size * 3);
this.destroyHook = new Hook<OnDestroyDetour>(pDestroy, this.HandleFrameworkDestroy);
var pRealDestroy = Marshal.ReadIntPtr(vtable, IntPtr.Size * 2);
this.realDestroyHook = new Hook<OnRealDestroyDelegate>(pRealDestroy, this.HandleRealDestroy);
}
private bool HandleFrameworkUpdate(IntPtr framework)
{
// If any of the tier loads failed, just go to the original code.

38
Dalamud/Game/FrameworkAddressResolver.cs
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@ -1,5 +1,6 @@
using System;
using System.Runtime.InteropServices;
using ImGuiNET;
namespace Dalamud.Game
{
@ -9,47 +10,36 @@ namespace Dalamud.Game
public sealed class FrameworkAddressResolver : BaseAddressResolver
{
/// <summary>
/// Gets the base address native Framework class.
/// Gets the address for the function that is called once the Framework is destroyed.
/// </summary>
public IntPtr BaseAddress { get; private set; }
public IntPtr DestroyAddress { get; private set; }
/// <summary>
/// Gets the address for the native GuiManager class.
/// Gets the address for the function that is called once the Framework is free'd.
/// </summary>
public IntPtr GuiManager { get; private set; }
public IntPtr FreeAddress { get; private set; }
/// <summary>
/// Gets the address for the native ScriptManager class.
/// Gets the function that is called every tick.
/// </summary>
public IntPtr ScriptManager { get; private set; }
public IntPtr TickAddress { get; private set; }
/// <inheritdoc/>
protected override void Setup64Bit(SigScanner sig)
{
this.SetupFramework(sig);
// Xiv__Framework__GetGuiManager+8 000 mov rax, [rcx+2C00h]
// Xiv__Framework__GetGuiManager+F 000 retn
this.GuiManager = Marshal.ReadIntPtr(this.BaseAddress, 0x2C08);
// Called from Framework::Init
this.ScriptManager = this.BaseAddress + 0x2C68; // note that no deref here
}
private void SetupFramework(SigScanner scanner)
{
// Dissasembly of part of the .dtor
// 00007FF701AD665A | 48 C7 05 ?? ?? ?? ?? 00 00 00 00 | MOV QWORD PTR DS:[g_mainFramework],0
// 00007FF701AD6665 | E8 ?? ?? ?? ?? | CALL ffxiv_dx11.7FF701E27130
// 00007FF701AD666A | 48 8D ?? ?? ?? 00 00 | LEA RCX,QWORD PTR DS:[RBX + 2C38]
// 00007FF701AD6671 | E8 ?? ?? ?? ?? | CALL ffxiv_dx11.7FF701E2A7D0
// 00007FF701AD6676 | 48 8D ?? ?? ?? ?? ?? | LEA RAX,QWORD PTR DS:[7FF702C31F80
var fwDtor = scanner.ScanText("48 C7 05 ?? ?? ?? ?? 00 00 00 00 E8 ?? ?? ?? ?? 48 8D ?? ?? ?? 00 00 E8 ?? ?? ?? ?? 48 8D");
var fwOffset = Marshal.ReadInt32(fwDtor + 3);
var pFramework = scanner.ResolveRelativeAddress(fwDtor + 11, fwOffset);
this.DestroyAddress =
scanner.ScanText("48 89 5C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 48 8B 3D ?? ?? ?? ?? 48 8B D9 48 85 FF");
// Framework does not change once initialized in startup so don't bother to deref again and again.
this.BaseAddress = Marshal.ReadIntPtr(pFramework);
this.FreeAddress =
scanner.ScanText("48 89 5C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 48 8B D9 48 8B 0D ?? ?? ?? ??");
this.TickAddress =
scanner.ScanText("40 53 48 83 EC 20 FF 81 ?? ?? ?? ?? 48 8B D9 48 8D 4C 24 ??");
}
}
}

6
Dalamud/Game/Gui/ChatGui.cs
View file

@ -38,13 +38,11 @@ namespace Dalamud.Game.Gui
/// Initializes a new instance of the <see cref="ChatGui"/> class.
/// </summary>
/// <param name="baseAddress">The base address of the ChatManager.</param>
internal ChatGui(IntPtr baseAddress)
internal ChatGui()
{
this.address = new ChatGuiAddressResolver(baseAddress);
this.address = new ChatGuiAddressResolver();
this.address.Setup();
Log.Verbose($"Chat manager address 0x{this.address.BaseAddress.ToInt64():X}");
this.printMessageHook = new Hook<PrintMessageDelegate>(this.address.PrintMessage, this.HandlePrintMessageDetour);
this.populateItemLinkHook = new Hook<PopulateItemLinkDelegate>(this.address.PopulateItemLinkObject, this.HandlePopulateItemLinkDetour);
this.interactableLinkClickedHook = new Hook<InteractableLinkClickedDelegate>(this.address.InteractableLinkClicked, this.InteractableLinkClickedDetour);

14
Dalamud/Game/Gui/ChatGuiAddressResolver.cs
View file

@ -7,20 +7,6 @@ namespace Dalamud.Game.Gui
/// </summary>
public sealed class ChatGuiAddressResolver : BaseAddressResolver
{
/// <summary>
/// Initializes a new instance of the <see cref="ChatGuiAddressResolver"/> class.
/// </summary>
/// <param name="baseAddress">The base address of the native ChatManager class.</param>
public ChatGuiAddressResolver(IntPtr baseAddress)
{
this.BaseAddress = baseAddress;
}
/// <summary>
/// Gets the base address of the native ChatManager class.
/// </summary>
public IntPtr BaseAddress { get; }
/// <summary>
/// Gets the address of the native PrintMessage method.
/// </summary>

2
Dalamud/Game/Gui/GameGui.cs
View file

@ -62,7 +62,7 @@ namespace Dalamud.Game.Gui
Log.Verbose($"HandleItemOut address 0x{this.address.HandleItemOut.ToInt64():X}");
Log.Verbose($"HandleImm address 0x{this.address.HandleImm.ToInt64():X}");
Service<ChatGui>.Set(new ChatGui(this.address.ChatManager));
Service<ChatGui>.Set();
Service<PartyFinderGui>.Set();
Service<ToastGui>.Set();
Service<FlyTextGui>.Set();

21
Dalamud/Game/Gui/GameGuiAddressResolver.cs
View file

@ -7,24 +7,11 @@ namespace Dalamud.Game.Gui
/// </summary>
internal sealed class GameGuiAddressResolver : BaseAddressResolver
{
/// <summary>
/// Initializes a new instance of the <see cref="GameGuiAddressResolver"/> class.
/// </summary>
public GameGuiAddressResolver()
{
this.BaseAddress = Service<Framework>.Get().Address.BaseAddress;
}
/// <summary>
/// Gets the base address of the native GuiManager class.
/// </summary>
public IntPtr BaseAddress { get; private set; }
/// <summary>
/// Gets the address of the native ChatManager class.
/// </summary>
public IntPtr ChatManager { get; private set; }
/// <summary>
/// Gets the address of the native SetGlobalBgm method.
/// </summary>
@ -89,13 +76,5 @@ namespace Dalamud.Game.Gui
this.ToggleUiHide = sig.ScanText("48 89 5C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 0F B6 B9 ?? ?? ?? ?? B8 ?? ?? ?? ??");
this.Utf8StringFromSequence = sig.ScanText("48 89 5C 24 ?? 48 89 74 24 ?? 57 48 83 EC 20 48 8D 41 22 66 C7 41 ?? ?? ?? 48 89 01 49 8B D8");
}
/// <inheritdoc/>
protected override void SetupInternal(SigScanner scanner)
{
// Xiv__UiManager__GetChatManager 000 lea rax, [rcx+13E0h]
// Xiv__UiManager__GetChatManager+7 000 retn
this.ChatManager = this.BaseAddress + 0x13E0;
}
}
}

2
Dalamud/Interface/Internal/Windows/DataWindow.cs
View file

@ -452,7 +452,6 @@ namespace Dalamud.Interface.Internal.Windows
}
else
{
stateString += $"FrameworkBase: {framework.Address.BaseAddress.ToInt64():X}\n";
stateString += $"ObjectTableLen: {objectTable.Length}\n";
stateString += $"LocalPlayerName: {clientState.LocalPlayer.Name}\n";
stateString += $"CurrentWorldName: {(this.resolveGameData ? clientState.LocalPlayer.CurrentWorld.GameData.Name : clientState.LocalPlayer.CurrentWorld.Id.ToString())}\n";
@ -530,7 +529,6 @@ namespace Dalamud.Interface.Internal.Windows
}
else
{
stateString += $"FrameworkBase: {framework.Address.BaseAddress.ToInt64():X}\n";
stateString += $"FateTableLen: {fateTable.Length}\n";
ImGui.TextUnformatted(stateString);