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Sandboxie/SandboxiePlus/QSbieAPI/Helpers/DbgHelper.cpp

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#include "stdafx.h"
#include <QAbstractEventDispatcher>
#include <QSettings>
#include <ntstatus.h>
#define WIN32_NO_STATUS
typedef long NTSTATUS;
#include <windows.h>
#include "..\..\..\Sandboxie\common\win32_ntddk.h"
#include "DbgHelper.h"
#include <dbghelp.h>
typedef BOOL(WINAPI* P_SymFromAddr)(HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol);
typedef BOOL(WINAPI* P_SymGetModuleInfoW64)(HANDLE hProcess, DWORD64 qwAddr, PIMAGEHLP_MODULEW64 ModuleInfo);
typedef DWORD(WINAPI* P_SymSetOptions)(DWORD SymOptions);
typedef DWORD(WINAPI* P_SymGetOptions)();
typedef BOOL(WINAPI* P_SymInitialize)(HANDLE hProcess, PCSTR UserSearchPath, BOOL fInvadeProcess);
typedef BOOL(WINAPI* P_SymCleanup)(HANDLE ProcessHandle);
typedef BOOL(WINAPI* P_SymSetSearchPathW)(HANDLE hProcess, PCWSTR SearchPath);
typedef BOOL(WINAPI* P_SymRegisterCallbackW64)(HANDLE hProcess, PSYMBOL_REGISTERED_CALLBACK64 CallbackFunction, ULONG64 UserContext);
static P_SymFromAddr __sys_SymFromAddr = NULL;
static P_SymGetModuleInfoW64 __sys_SymGetModuleInfoW64 = NULL;
static P_SymSetOptions __sys_SymSetOptions = NULL;
static P_SymGetOptions __sys_SymGetOptions = NULL;
static P_SymSetSearchPathW __sys_SymSetSearchPathW = NULL;
static P_SymInitialize __sys_SymInitialize = NULL;
static P_SymCleanup __sys_SymCleanup = NULL;
static P_SymRegisterCallbackW64 __sys_SymRegisterCallbackW64 = NULL;
CSymbolProvider* g_SymbolProvider = NULL;
CSymbolProvider::CSymbolProvider()
{
//m_uTimerID = startTimer(1000);
// start thread
m_bRunning = true;
start();
}
CSymbolProvider::~CSymbolProvider()
{
//killTimer(m_uTimerID);
m_bRunning = false;
//quit();
if (!wait(10 * 1000))
terminate();
// cleanup unfinished tasks
while (!m_JobQueue.isEmpty()) {
m_JobQueue.takeFirst()->deleteLater();
}
g_SymbolProvider = NULL;
}
//void CSymbolProvider::timerEvent(QTimerEvent* pEvent)
//{
// if (pEvent->timerId() != m_uTimerID)
// return;
//}
void CSymbolProvider::run()
{
quint64 LastCleanUp = 0;
while (m_bRunning)
{
quint64 OldTime = GetTickCount64() - 3000; // cleanup everything older than 3 sec
if (LastCleanUp < OldTime)
{
QMutexLocker Lock(&m_SymLock);
for(auto I = m_Workers.begin(); I != m_Workers.end(); )
{
if (GetTickCount64() - I->last > 2000) {
__sys_SymCleanup((HANDLE)I->handle);
if ((I->handle & 1) == 0)
CloseHandle((HANDLE)I->handle);
I = m_Workers.erase(I);
}
else
I++;
}
LastCleanUp = GetTickCount64();
}
QMutexLocker Locker(&m_JobMutex);
if (m_JobQueue.isEmpty()) {
Locker.unlock();
QThread::msleep(250);
continue;
}
CSymbolProviderJob* pJob = m_JobQueue.takeFirst();
Locker.unlock();
QString Name = Resolve(pJob->m_ProcessId, pJob->m_Address);
emit pJob->SymbolResolved(pJob->m_Address, Name);
pJob->deleteLater();
}
}
extern "C" BOOL CALLBACK SymbolCallbackFunction(HANDLE ProcessHandle, ULONG ActionCode, ULONG64 CallbackData, ULONG64 UserContext);
QString CSymbolProvider::Resolve(quint64 pid, quint64 Address)
{
QMutexLocker Lock(&m_SymLock);
SWorker& Worker = m_Workers[pid];
if (Worker.handle == 0)
{
Worker.pProvider = this;
static ACCESS_MASK accesses[] =
{
//STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0xfff, // pre-Vista full access
PROCESS_QUERY_INFORMATION | PROCESS_VM_READ | PROCESS_DUP_HANDLE,
PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
MAXIMUM_ALLOWED
};
for (ULONG i = 0; i < sizeof(accesses) / sizeof(ACCESS_MASK); i++) {
Worker.handle = (quint64)OpenProcess(accesses[i], FALSE, pid);
if (Worker.handle != (quint64)INVALID_HANDLE_VALUE)
break;
}
static QAtomicInt FakeHandle = 1; // real handles are divisible by 4
if (Worker.handle == (quint64)INVALID_HANDLE_VALUE)
Worker.handle = FakeHandle.fetchAndAddAcquire(4);
__sys_SymInitialize((HANDLE)Worker.handle, NULL, TRUE);
__sys_SymRegisterCallbackW64((HANDLE)Worker.handle, SymbolCallbackFunction, (ULONG64)&Worker);
__sys_SymSetSearchPathW((HANDLE)Worker.handle, m_SymPath.toStdWString().c_str());
}
Worker.last = GetTickCount64();
QString Symbol;
DWORD64 displacement;
UCHAR buffer[sizeof(SYMBOL_INFO) + sizeof(TCHAR) + (MAX_SYM_NAME - 1)] = { 0 };
SYMBOL_INFO* symbolInfo = (SYMBOL_INFO*)buffer;
symbolInfo->SizeOfStruct = sizeof(SYMBOL_INFO);
symbolInfo->MaxNameLen = MAX_SYM_NAME;
if (__sys_SymFromAddr((HANDLE)Worker.handle, Address, &displacement, symbolInfo))
{
symbolInfo->Name[symbolInfo->NameLen] = 0;
Symbol = QString(symbolInfo->Name);
if (displacement != 0)
Symbol.append(QString("+0x%1").arg(displacement, 0, 16));
IMAGEHLP_MODULEW64 ModuleInfo;
ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
if (__sys_SymGetModuleInfoW64((HANDLE)Worker.handle, symbolInfo->ModBase ? symbolInfo->ModBase : symbolInfo->Address, &ModuleInfo))
Symbol.prepend(QString::fromWCharArray(ModuleInfo.ModuleName) + "!");
}
else
{
// Then this happens, probably symsrv.dll is missing
IMAGEHLP_MODULEW64 ModuleInfo;
ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
if (__sys_SymGetModuleInfoW64((HANDLE)Worker.handle, Address, &ModuleInfo))
Symbol.prepend(QString::fromWCharArray(ModuleInfo.ModuleName) + "+" + QString("0x%1").arg(Address - ModuleInfo.BaseOfImage, 0, 16));
}
return Symbol;
}
void CSymbolProvider::ResolveAsync(quint64 pid, quint64 Address, QObject* receiver, const char* member)
{
CSymbolProvider* This = CSymbolProvider::Instance();
if (!This)
return;
if (!QAbstractEventDispatcher::instance(QThread::currentThread())) {
qWarning("CSymbolProvider::ResolveAsync() called with no event dispatcher");
return;
}
CSymbolProviderJob* pJob = new CSymbolProviderJob(pid, Address);
pJob->moveToThread(This);
QObject::connect(pJob, SIGNAL(SymbolResolved(quint64, const QString&)), receiver, member, Qt::QueuedConnection);
QMutexLocker Locker(&This->m_JobMutex);
This->m_JobQueue.append(pJob);
}
extern "C" BOOL CALLBACK SymbolCallbackFunction(HANDLE ProcessHandle, ULONG ActionCode, ULONG64 CallbackData, ULONG64 UserContext)
{
CSymbolProvider::SWorker* pWorker = (CSymbolProvider::SWorker*)UserContext;
switch (ActionCode)
{
case CBA_DEFERRED_SYMBOL_LOAD_START:
{
/*PIMAGEHLP_DEFERRED_SYMBOL_LOADW64 callbackData = (PIMAGEHLP_DEFERRED_SYMBOL_LOADW64)CallbackData;
IMAGEHLP_MODULEW64 ModuleInfo;
ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
if (__sys_SymGetModuleInfoW64(ProcessHandle, callbackData->BaseOfImage, &ModuleInfo))
{
HANDLE fileHandle;
UNICODE_STRING fileName;
OBJECT_ATTRIBUTES objectAttributes;
IO_STATUS_BLOCK ioStatusBlock;
std::wstring FileName = L"\\??\\" + std::wstring(ModuleInfo.ImageName);
fileName.Buffer = (WCHAR*)FileName.c_str();
fileName.Length = fileName.MaximumLength = FileName.size() * sizeof(WCHAR);
InitializeObjectAttributes(
&objectAttributes,
&fileName,
OBJ_CASE_INSENSITIVE,
NULL,
NULL
);
if (NT_SUCCESS(NtCreateFile(
&fileHandle,
FILE_READ_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE,
&objectAttributes,
&ioStatusBlock,
NULL,
FILE_ATTRIBUTE_NORMAL,
FILE_SHARE_READ | FILE_SHARE_DELETE,
FILE_OPEN,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0
)))
{
callbackData->FileName[0] = UNICODE_NULL;
callbackData->hFile = fileHandle;
return TRUE;
}
}*/
}
break;
case CBA_DEFERRED_SYMBOL_LOAD_COMPLETE:
{
/*PIMAGEHLP_DEFERRED_SYMBOL_LOADW64 callbackData = (PIMAGEHLP_DEFERRED_SYMBOL_LOADW64)CallbackData;
if (callbackData->hFile)
{
NtClose(callbackData->hFile);
callbackData->hFile = NULL;
}
return TRUE;*/
}
break;
case CBA_READ_MEMORY:
{
PIMAGEHLP_CBA_READ_MEMORY callbackData = (PIMAGEHLP_CBA_READ_MEMORY)CallbackData;
/*if ((pWorker->handle & 1) == 0)
{
if (NT_SUCCESS(NtReadVirtualMemory(
ProcessHandle,
(PVOID)callbackData->addr,
callbackData->buf,
(SIZE_T)callbackData->bytes,
(PSIZE_T)callbackData->bytesread
)))
{
return TRUE;
}
}*/
}
break;
case CBA_DEFERRED_SYMBOL_LOAD_CANCEL:
{
//if (pWorker->last == 0) // terminating
// return TRUE;
}
break;
case CBA_XML_LOG:
{
PWSTR callbackData = (PWSTR)CallbackData;
QString data = QString::fromWCharArray(callbackData);
//qDebug() << data;
QVariantMap result;
QXmlStreamReader xmlReader(data);
while (!xmlReader.atEnd() && !xmlReader.hasError()) {
QXmlStreamReader::TokenType token = xmlReader.readNext();
if (token == QXmlStreamReader::StartElement) {
QString elementName = xmlReader.name().toString();
QVariantMap attributes;
QXmlStreamAttributes xmlAttributes = xmlReader.attributes();
for (const auto& attribute : xmlAttributes) {
attributes.insert(attribute.name().toString(), attribute.value().toString());
}
result.insert(elementName, attributes);
}
}
QString Message;
if (!result.value("Activity").toMap()["details"].toString().isEmpty())
Message = result.value("Activity").toMap()["details"].toString();
//if (!result.value("Log").toMap()["message"].toString().isEmpty())
// Message = result.value("Log").toMap()["message"].toString();
if (!result.value("Progress").toMap()["percent"].toString().isEmpty())
Message = pWorker->LastMessage + QString(" (%1%)").arg(result.value("Progress").toMap()["percent"].toString());
else if (!Message.isEmpty())
pWorker->LastMessage = Message;
if(!Message.isEmpty() || result.isEmpty())
emit pWorker->pProvider->StatusChanged(Message);
break;
}
break;
}
return FALSE;
}
bool MyBeginInitOnce(QAtomicInt& InitOnce)
{
if (InitOnce == 1)
return false;
else
{
if (InitOnce.testAndSetAcquire(0, 2))
return true;
while (InitOnce == 2)
Sleep(10);
return false;
}
}
CSymbolProvider* CSymbolProvider::Instance()
{
static QAtomicInt InitOnce = 0;
if (MyBeginInitOnce(InitOnce))
{
/*#ifdef _WIN64
QSettings settings("HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Kits\\Installed Roots", QSettings::NativeFormat);
#else
QSettings settings("HKEY_LOCAL_MACHINE\\Software\\Wow6432Node\\Microsoft\\Windows Kits\\Installed Roots", QSettings::NativeFormat);
#endif
QString KitsRoot = settings.value("KitsRoot10").toString(); // Windows 10 SDK
if(KitsRoot.isEmpty())
KitsRoot = settings.value("KitsRoot81").toString(); // Windows 8.1 SDK
if(KitsRoot.isEmpty())
KitsRoot = settings.value("KitsRoot").toString(); // Windows 8 SDK
#if defined(_M_AMD64)
KitsRoot.append("\\Debuggers\\x64\\");
#elif defined(_M_ARM64)
KitsRoot.append("\\Debuggers\\arm64\\");
#else
KitsRoot.append("\\Debuggers\\x86\\");
#endif
HMODULE DbgCoreMod = LoadLibrary((KitsRoot + "dbgcore.dll").toStdWString().c_str());
HMODULE DbgHelpMod = LoadLibrary((KitsRoot + "dbghelp.dll").toStdWString().c_str());
HMODULE SymSrvMod = LoadLibrary((KitsRoot + "symsrv.dll").toStdWString().c_str());*/
HMODULE DbgHelpMod = LoadLibrary(L"dbghelp.dll");
__sys_SymFromAddr = (P_SymFromAddr)GetProcAddress(DbgHelpMod, "SymFromAddr");
__sys_SymGetModuleInfoW64 = (P_SymGetModuleInfoW64)GetProcAddress(DbgHelpMod, "SymGetModuleInfoW64");
__sys_SymSetOptions = (P_SymSetOptions)GetProcAddress(DbgHelpMod, "SymSetOptions");
__sys_SymGetOptions = (P_SymGetOptions)GetProcAddress(DbgHelpMod, "SymGetOptions");
__sys_SymSetSearchPathW = (P_SymSetSearchPathW)GetProcAddress(DbgHelpMod, "SymSetSearchPathW");
__sys_SymInitialize = (P_SymInitialize)GetProcAddress(DbgHelpMod, "SymInitialize");
__sys_SymCleanup = (P_SymCleanup)GetProcAddress(DbgHelpMod, "SymCleanup");
__sys_SymRegisterCallbackW64 = (P_SymRegisterCallbackW64)GetProcAddress(DbgHelpMod, "SymRegisterCallbackW64");
if (!__sys_SymSetOptions) {
if (DbgHelpMod)
FreeLibrary(DbgHelpMod);
InitOnce = 0;
return NULL;
}
__sys_SymSetOptions(
__sys_SymGetOptions() | SYMOPT_UNDNAME |
SYMOPT_AUTO_PUBLICS | SYMOPT_CASE_INSENSITIVE | SYMOPT_DEFERRED_LOADS |
SYMOPT_FAIL_CRITICAL_ERRORS | SYMOPT_INCLUDE_32BIT_MODULES |
SYMOPT_LOAD_LINES | SYMOPT_OMAP_FIND_NEAREST | SYMOPT_UNDNAME // | SYMOPT_DEBUG
);
g_SymbolProvider = new CSymbolProvider();
InitOnce = 1;
}
return g_SymbolProvider;
}
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