Clever Geek Handbook

Comment se faire des amis .NET et IDA Pro (à propos de l'amitié C # et C ++)



Salutations,



Tout d'abord, à propos du problème / de la tâche: lorsque j'ai

commencé à écrire un autre plugin de débogage pour la plate-forme rétro sous IDA Pro (secrètement: ce sera SNES), je suis tombé sur l'ensemble suivant qui devait être ami:



  1. Le noyau de l'émulateur est écrit en C ++ et compilé dans une DLL
  2. L'interface graphique de l'émulateur est écrite en C # et utilise une DLL du noyau pour contrôler l'émulation
  3. IDA Pro, , C++ DLL ( C++)


- IDA ( , , ..) , IDA .



( ), :



1) LoadLibrary("emu_core.dll"), GetProcAddress(core, "Pause") pause(), , , .



: — ( , GUI )! , , , , DLL-, , , UI, .



, DLL- IDA, . .



2) - -, , — GUI, RPC-.



, :



  • IDA (, , reset), .. , , , .
  • . , , , , RPC .




COM. , , RPC . , , WinAPI (.. C/C++) — C#.



.. GUI , . COM-.



:



1) , COM, [ComVisible(true)]. , - , ( , , )



2) , , ( IDA). ( ComVisible):



[Guid("7710855F-D37B-464B-B645-972BAB2706D4")]  // Visual Studio    GUID-  
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[ComVisible(true)]
public interface IDebugApi


3) , DebugCOM:



[Guid("6AF9F5DD-6626-4E35-BEF4-29A73E18A739")]
[ComVisible(true)]
public class DebugCOM : IDebugApi


4) ( ) (Class Library), . DebugCOM.dll



5) tlbexp.exe Visual Studio ( Developer Command Prompt) DLL TLB. , ..



:



tlbexp DebugCOM.dll /out:DebugCOM.tlb


COM, :



Assembly exported to 'DebugCOM.tlb'


, . :



TlbExp 
TlbExp : warning TX801311B0 : Type library exporter warning processing 'AddressInfo.Type, DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'InteropBreakpoint.MemoryType, DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.GetMemorySize(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.GetMemoryValue(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.SetMemoryValue(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.SetMemoryValues(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.SetMemoryState(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.GetMemoryState(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.GetMemoryAccessCounts(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.
TlbExp : warning TX801311B0 : Type library exporter warning processing 'IDebugApi.GetMemoryAccessCounts2(type), DebugCOM'. Warning: Non COM visible value type 'SnesMemoryType' is being referenced either from the type currently being exported or from one of its base types.


, SnesMemoryType ComVisible(true). .



6) TLB- (File->View TypeLib...) ComView. :



c:\Windows\Microsoft.NET\Framework\v4.0.30319\ComView.exe


IDL:





File->Save as... IDL-.



7) IDL- C++ , , , DebugCOM:







8) IDL- Compile Ctrl+F7. , : DebugCOM_h.h DebugCOM_i.c. ( ), .





, C# , . C/C++. C#.



9) - .h .c , , . :



COM C++ 
#include <atlbase.h>
#include <iostream>

#include "DebugCOM_h.h"
#include "DebugCOM_i.c"

int main(int argc, char* argv[]) {
    HRESULT hr;

    hr = ::CoInitializeEx(0, COINITBASE_MULTITHREADED);
    if (FAILED(hr))
    {
        std::cout << "CoInitializeEx failure: " << std::hex << std::showbase << hr << std::endl;
        return EXIT_FAILURE;
    }

    CLSID CLSID_server;
    hr = ::CLSIDFromString(L"{6AF9F5DD-6626-4E35-BEF4-29A73E18A739}", &CLSID_server);
    if (FAILED(hr))
    {
        std::cout << "CLSIDFromString failure: " << std::hex << std::showbase << hr << std::endl;
        return EXIT_FAILURE;
    }

    CComPtr<IDebugApi> server;

    hr = ::CoCreateInstance(CLSID_server, nullptr, CLSCTX_LOCAL_SERVER, __uuidof(IDebugApi), (void**)&server);
    if (FAILED(hr))
    {
        std::cout << "CoCreateInstance failure: " << std::hex << std::showbase << hr << std::endl;
        return EXIT_FAILURE;
    }

    DebugState state = {};
    hr = server->GetState(&state);
    if (FAILED(hr))
    {
        std::cout << "GetState failure: " << std::hex << std::showbase << hr << std::endl;
        return EXIT_FAILURE;
    }

    std::cout << "PC Address: " << std::hex << std::showbase << state.Cpu.PC << std::endl;

    ::CoUninitialize();

    return EXIT_SUCCESS;

    return 0;
}


COM.



COM-



:



  1. Inprocess
  2. Out-of-process


  • , COM , . , COM GUI, IDA.

    COM DLL.



  • , COM- . , , , -. .. , COM .





, out-of-process COM. , GitHub " " : https://github.com/dotnet/samples/tree/master/core/extensions/OutOfProcCOM. .





En conséquence, j'ai réussi à faire des amis IDA Pro et l'application .NET Framework avec les outils Windows, sans avoir à me soucier des vélos de mes propres protocoles RPC. De plus, j'ai résolu le problème de n'avoir qu'une seule copie du noyau de l'émulateur et de partager son état entre plusieurs applications.



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