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#include "rtti.h"
#include <thread>
using namespace BinaryNinja;
static Ref<BackgroundTask> rttiBackgroundTask = nullptr;
static Ref<BackgroundTask> vftBackgroundTask = nullptr;
bool MetadataExists(Ref<BinaryView> view)
{
return view->QueryMetadata(VIEW_METADATA_MSVC) != nullptr;
}
void RTTIAnalysis(Ref<AnalysisContext> analysisContext)
{
auto view = analysisContext->GetBinaryView();
auto platform = view->GetDefaultPlatform();
if (!platform)
return;
auto platformName = platform->GetName();
// We currently only want to check for MSVC rtti on windows platforms
if (platformName.find("window") == std::string::npos)
return;
auto processor = MicrosoftRTTIProcessor(view);
processor.ProcessRTTI();
view->StoreMetadata(VIEW_METADATA_MSVC, processor.SerializedMetadata(), true);
}
void VFTAnalysis(Ref<AnalysisContext> analysisContext)
{
auto view = analysisContext->GetBinaryView();
if (!MetadataExists(view))
return;
auto processor = MicrosoftRTTIProcessor(view);
processor.ProcessVFT();
view->StoreMetadata(VIEW_METADATA_MSVC, processor.SerializedMetadata(), true);
}
extern "C" {
BN_DECLARE_CORE_ABI_VERSION
BINARYNINJAPLUGIN bool CorePluginInit()
{
// TODO: In the future we will have a function level workflow which:
// TODO: 1. Uses MSVC metadata to identify if a function is apart of a VFT
// TODO: a. Or possibly we can tag some info to the function as apart of the VFT analysis, this would save a lookup.
// TODO: 2. Identify if the function is unique to a class, renaming and retyping if true
// TODO: 3. Identify functions which address a VFT and are probably a constructor (alloc use), retyping if true
// TODO: 4. Identify functions which address a VFT and are probably a deconstructor (free use), retyping if true
Ref<Workflow> msvcMetaWorkflow = Workflow::Instance("core.module.metaAnalysis")->Clone();
// Add RTTI analysis.
msvcMetaWorkflow->RegisterActivity(R"~({
"title": "MSVC RTTI Analysis",
"name": "plugin.msvc.rttiAnalysis",
"role": "action",
"description": "This analysis step attempts to parse and symbolize msvc rtti information.",
"eligibility": {
"runOnce": true,
"auto": {}
}
})~", &RTTIAnalysis);
// Add Virtual Function Table analysis.
msvcMetaWorkflow->RegisterActivity(R"~({
"title": "MSVC VFT Analysis",
"name": "plugin.msvc.vftAnalysis",
"role": "action",
"description": "This analysis step attempts to parse and symbolize msvc virtual function table information.",
"eligibility": {
"runOnce": true,
"auto": {}
}
})~", &VFTAnalysis);
// Run rtti before debug info is applied.
msvcMetaWorkflow->Insert("core.module.loadDebugInfo", "plugin.msvc.rttiAnalysis");
// Run vft after functions have analyzed (so that the virtual functions have analyzed)
msvcMetaWorkflow->Insert("core.module.deleteUnusedAutoFunctions", "plugin.msvc.vftAnalysis");
Workflow::RegisterWorkflow(msvcMetaWorkflow);
return true;
}
}
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