/**
* Initializes a work queue.
*
* \param WorkQueue A work queue object.
* \param MinimumThreads The suggested minimum number of threads to keep alive, even
* when there is no work to be performed.
* \param MaximumThreads The suggested maximum number of threads to create.
* \param NoWorkTimeout The number of milliseconds after which threads without work
* will terminate.
*/
VOID PhInitializeWorkQueue(
__out PPH_WORK_QUEUE WorkQueue,
__in ULONG MinimumThreads,
__in ULONG MaximumThreads,
__in ULONG NoWorkTimeout
)
{
PhInitializeRundownProtection(&WorkQueue->RundownProtect);
WorkQueue->Terminating = FALSE;
InitializeListHead(&WorkQueue->QueueListHead);
PhInitializeQueuedLock(&WorkQueue->QueueLock);
WorkQueue->MinimumThreads = MinimumThreads;
WorkQueue->MaximumThreads = MaximumThreads;
WorkQueue->NoWorkTimeout = NoWorkTimeout;
PhInitializeQueuedLock(&WorkQueue->StateLock);
NtCreateSemaphore(&WorkQueue->SemaphoreHandle, SEMAPHORE_ALL_ACCESS, NULL, 0, MAXLONG);
WorkQueue->CurrentThreads = 0;
WorkQueue->BusyThreads = 0;
#ifdef DEBUG
PhAcquireQueuedLockExclusive(&PhDbgWorkQueueListLock);
InsertTailList(&PhDbgWorkQueueListHead, &WorkQueue->DbgListEntry);
PhReleaseQueuedLockExclusive(&PhDbgWorkQueueListLock);
#endif
}
/**
* Initializes a work queue.
*
* \param WorkQueue A work queue object.
* \param MinimumThreads The suggested minimum number of threads to keep alive, even
* when there is no work to be performed.
* \param MaximumThreads The suggested maximum number of threads to create.
* \param NoWorkTimeout The number of milliseconds after which threads without work
* will terminate.
*/
VOID PhInitializeWorkQueue(
_Out_ PPH_WORK_QUEUE WorkQueue,
_In_ ULONG MinimumThreads,
_In_ ULONG MaximumThreads,
_In_ ULONG NoWorkTimeout
)
{
PhInitializeRundownProtection(&WorkQueue->RundownProtect);
WorkQueue->Terminating = FALSE;
InitializeListHead(&WorkQueue->QueueListHead);
PhInitializeQueuedLock(&WorkQueue->QueueLock);
PhInitializeQueuedLock(&WorkQueue->QueueEmptyCondition);
WorkQueue->MinimumThreads = MinimumThreads;
WorkQueue->MaximumThreads = MaximumThreads;
WorkQueue->NoWorkTimeout = NoWorkTimeout;
PhInitializeQueuedLock(&WorkQueue->StateLock);
WorkQueue->SemaphoreHandle = NULL;
WorkQueue->CurrentThreads = 0;
WorkQueue->BusyCount = 0;
#ifdef DEBUG
PhAcquireQueuedLockExclusive(&PhDbgWorkQueueListLock);
PhAddItemList(PhDbgWorkQueueList, WorkQueue);
PhReleaseQueuedLockExclusive(&PhDbgWorkQueueListLock);
#endif
}
VOID PerformNetworkAction(
__in HWND hWnd,
__in ULONG Action,
__in PPH_IP_ADDRESS Address
)
{
NETWORK_OUTPUT_CONTEXT context = { 0 };
context.Action = Action;
context.Address = *Address;
PhInitializeQueuedLock(&context.WindowHandleLock);
PhInitializeStringBuilder(&context.ReceivedString, PAGE_SIZE);
DialogBoxParam(
PluginInstance->DllBase,
MAKEINTRESOURCE(IDD_OUTPUT),
NULL,
NetworkOutputDlgProc,
(LPARAM)&context
);
if (context.ThreadHandle)
{
// Wait for our thread to exit since it uses the context structure.
NtWaitForSingleObject(context.ThreadHandle, FALSE, NULL);
NtClose(context.ThreadHandle);
}
PhDeleteStringBuilder(&context.ReceivedString);
}
VOID EtInitializeNetworkBlock(
__out PET_NETWORK_BLOCK Block,
__in PPH_NETWORK_ITEM NetworkItem
)
{
memset(Block, 0, sizeof(ET_NETWORK_BLOCK));
Block->NetworkItem = NetworkItem;
PhInitializeQueuedLock(&Block->TextCacheLock);
InsertTailList(&EtNetworkBlockListHead, &Block->ListEntry);
}
VOID EtInitializeProcessBlock(
__out PET_PROCESS_BLOCK Block,
__in PPH_PROCESS_ITEM ProcessItem
)
{
memset(Block, 0, sizeof(ET_PROCESS_BLOCK));
Block->ProcessItem = ProcessItem;
PhInitializeQueuedLock(&Block->TextCacheLock);
InsertTailList(&EtProcessBlockListHead, &Block->ListEntry);
}
PPH_THREAD_PROVIDER PhCreateThreadProvider(
_In_ HANDLE ProcessId
)
{
PPH_THREAD_PROVIDER threadProvider;
threadProvider = PhCreateObject(
PhEmGetObjectSize(EmThreadProviderType, sizeof(PH_THREAD_PROVIDER)),
PhThreadProviderType
);
memset(threadProvider, 0, sizeof(PH_THREAD_PROVIDER));
threadProvider->ThreadHashtable = PhCreateHashtable(
sizeof(PPH_THREAD_ITEM),
PhpThreadHashtableEqualFunction,
PhpThreadHashtableHashFunction,
20
);
PhInitializeFastLock(&threadProvider->ThreadHashtableLock);
PhInitializeCallback(&threadProvider->ThreadAddedEvent);
PhInitializeCallback(&threadProvider->ThreadModifiedEvent);
PhInitializeCallback(&threadProvider->ThreadRemovedEvent);
PhInitializeCallback(&threadProvider->UpdatedEvent);
PhInitializeCallback(&threadProvider->LoadingStateChangedEvent);
threadProvider->ProcessId = ProcessId;
threadProvider->SymbolProvider = PhCreateSymbolProvider(ProcessId);
if (threadProvider->SymbolProvider)
{
if (threadProvider->SymbolProvider->IsRealHandle)
threadProvider->ProcessHandle = threadProvider->SymbolProvider->ProcessHandle;
}
RtlInitializeSListHead(&threadProvider->QueryListHead);
PhInitializeQueuedLock(&threadProvider->LoadSymbolsLock);
threadProvider->RunId = 1;
threadProvider->SymbolsLoadedRunId = 0; // Force symbols to be loaded the first time we try to resolve an address
PhEmCallObjectOperation(EmThreadProviderType, threadProvider, EmObjectCreate);
return threadProvider;
}
PPH_HANDLE_PROVIDER PhCreateHandleProvider(
__in HANDLE ProcessId
)
{
PPH_HANDLE_PROVIDER handleProvider;
if (!NT_SUCCESS(PhCreateObject(
&handleProvider,
sizeof(PH_HANDLE_PROVIDER),
0,
PhHandleProviderType
)))
return NULL;
handleProvider->HandleHashSetSize = 128;
handleProvider->HandleHashSet = PhCreateHashSet(handleProvider->HandleHashSetSize);
handleProvider->HandleHashSetCount = 0;
PhInitializeQueuedLock(&handleProvider->HandleHashSetLock);
PhInitializeCallback(&handleProvider->HandleAddedEvent);
PhInitializeCallback(&handleProvider->HandleModifiedEvent);
PhInitializeCallback(&handleProvider->HandleRemovedEvent);
PhInitializeCallback(&handleProvider->UpdatedEvent);
handleProvider->ProcessId = ProcessId;
handleProvider->ProcessHandle = NULL;
PhOpenProcess(
&handleProvider->ProcessHandle,
PROCESS_DUP_HANDLE,
ProcessId
);
handleProvider->TempListHashtable = PhCreateSimpleHashtable(20);
return handleProvider;
}
PPH_HANDLE_PROVIDER PhCreateHandleProvider(
_In_ HANDLE ProcessId
)
{
PPH_HANDLE_PROVIDER handleProvider;
handleProvider = PhCreateObject(
PhEmGetObjectSize(EmHandleProviderType, sizeof(PH_HANDLE_PROVIDER)),
PhHandleProviderType
);
handleProvider->HandleHashSetSize = 128;
handleProvider->HandleHashSet = PhCreateHashSet(handleProvider->HandleHashSetSize);
handleProvider->HandleHashSetCount = 0;
PhInitializeQueuedLock(&handleProvider->HandleHashSetLock);
PhInitializeCallback(&handleProvider->HandleAddedEvent);
PhInitializeCallback(&handleProvider->HandleModifiedEvent);
PhInitializeCallback(&handleProvider->HandleRemovedEvent);
PhInitializeCallback(&handleProvider->UpdatedEvent);
handleProvider->ProcessId = ProcessId;
handleProvider->ProcessHandle = NULL;
handleProvider->RunStatus = PhOpenProcess(
&handleProvider->ProcessHandle,
PROCESS_DUP_HANDLE,
ProcessId
);
handleProvider->TempListHashtable = PhCreateSimpleHashtable(20);
PhEmCallObjectOperation(EmHandleProviderType, handleProvider, EmObjectCreate);
return handleProvider;
}
PPH_SYMBOL_PROVIDER PhCreateSymbolProvider(
_In_opt_ HANDLE ProcessId
)
{
PPH_SYMBOL_PROVIDER symbolProvider;
if (!NT_SUCCESS(PhCreateObject(
&symbolProvider,
sizeof(PH_SYMBOL_PROVIDER),
0,
PhSymbolProviderType
)))
return NULL;
InitializeListHead(&symbolProvider->ModulesListHead);
PhInitializeQueuedLock(&symbolProvider->ModulesListLock);
PhInitializeAvlTree(&symbolProvider->ModulesSet, PhpSymbolModuleCompareFunction);
PhInitializeCallback(&symbolProvider->EventCallback);
if (ProcessId)
{
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
};
ULONG i;
symbolProvider->IsRealHandle = FALSE;
// Try to open the process with many different accesses.
// This handle will be re-used when walking stacks, and doing
// various other things.
for (i = 0; i < sizeof(accesses) / sizeof(ACCESS_MASK); i++)
{
if (NT_SUCCESS(PhOpenProcess(&symbolProvider->ProcessHandle, accesses[i], ProcessId)))
{
symbolProvider->IsRealHandle = TRUE;
break;
}
}
}
else
{
symbolProvider->IsRealHandle = FALSE;
}
if (!symbolProvider->IsRealHandle)
{
HANDLE fakeHandle;
// Just generate a fake handle.
fakeHandle = (HANDLE)_InterlockedExchangeAddPointer((PLONG_PTR)&PhNextFakeHandle, 4);
// Add one to make sure it isn't divisible
// by 4 (so it can't be mistaken for a real
// handle).
fakeHandle = (HANDLE)((ULONG_PTR)fakeHandle + 1);
symbolProvider->ProcessHandle = fakeHandle;
}
symbolProvider->IsRegistered = FALSE;
#ifdef PH_SYMBOL_PROVIDER_DELAY_INIT
PhInitializeInitOnce(&symbolProvider->InitOnce);
#else
PhpRegisterSymbolProvider(symbolProvider);
#endif
return symbolProvider;
}
VOID PhShowThreadStackDialog(
_In_ HWND ParentWindowHandle,
_In_ HANDLE ProcessId,
_In_ HANDLE ThreadId,
_In_ PPH_SYMBOL_PROVIDER SymbolProvider
)
{
NTSTATUS status;
THREAD_STACK_CONTEXT threadStackContext;
HANDLE threadHandle = NULL;
// If the user is trying to view a system thread stack
// but KProcessHacker is not loaded, show an error message.
if (ProcessId == SYSTEM_PROCESS_ID && !KphIsConnected())
{
PhShowError(ParentWindowHandle, KPH_ERROR_MESSAGE);
return;
}
memset(&threadStackContext, 0, sizeof(THREAD_STACK_CONTEXT));
threadStackContext.ProcessId = ProcessId;
threadStackContext.ThreadId = ThreadId;
threadStackContext.SymbolProvider = SymbolProvider;
if (!NT_SUCCESS(status = PhOpenThread(
&threadHandle,
THREAD_GET_CONTEXT | THREAD_SUSPEND_RESUME,
ThreadId
)))
{
if (KphIsConnected())
{
status = PhOpenThread(
&threadHandle,
ThreadQueryAccess,
ThreadId
);
}
}
if (!NT_SUCCESS(status))
{
PhShowStatus(ParentWindowHandle, L"Unable to open the thread", status, 0);
return;
}
threadStackContext.ThreadHandle = threadHandle;
threadStackContext.List = PhCreateList(10);
threadStackContext.NewList = PhCreateList(10);
PhInitializeQueuedLock(&threadStackContext.StatusLock);
DialogBoxParam(
PhInstanceHandle,
MAKEINTRESOURCE(IDD_THRDSTACK),
ParentWindowHandle,
PhpThreadStackDlgProc,
(LPARAM)&threadStackContext
);
PhSwapReference(&threadStackContext.StatusMessage, NULL);
PhDereferenceObject(threadStackContext.NewList);
PhDereferenceObject(threadStackContext.List);
if (threadStackContext.ThreadHandle)
NtClose(threadStackContext.ThreadHandle);
}
INT_PTR CALLBACK EtpWsWatchDlgProc(
_In_ HWND hwndDlg,
_In_ UINT uMsg,
_In_ WPARAM wParam,
_In_ LPARAM lParam
)
{
PWS_WATCH_CONTEXT context;
if (uMsg == WM_INITDIALOG)
{
context = (PWS_WATCH_CONTEXT)lParam;
SetProp(hwndDlg, L"Context", (HANDLE)context);
}
else
{
context = (PWS_WATCH_CONTEXT)GetProp(hwndDlg, L"Context");
if (uMsg == WM_DESTROY)
RemoveProp(hwndDlg, L"Context");
}
if (!context)
return FALSE;
switch (uMsg)
{
case WM_INITDIALOG:
{
HWND lvHandle;
PhCenterWindow(hwndDlg, GetParent(hwndDlg));
context->WindowHandle = hwndDlg;
context->ListViewHandle = lvHandle = GetDlgItem(hwndDlg, IDC_LIST);
PhSetListViewStyle(lvHandle, FALSE, TRUE);
PhSetControlTheme(lvHandle, L"explorer");
PhAddListViewColumn(lvHandle, 0, 0, 0, LVCFMT_LEFT, 340, L"Instruction");
PhAddListViewColumn(lvHandle, 1, 1, 1, LVCFMT_LEFT, 80, L"Count");
PhSetExtendedListView(lvHandle);
ExtendedListView_SetSort(lvHandle, 1, DescendingSortOrder);
context->Hashtable = PhCreateSimpleHashtable(64);
context->BufferSize = 0x2000;
context->Buffer = PhAllocate(context->BufferSize);
PhInitializeQueuedLock(&context->ResultListLock);
context->SymbolProvider = PhCreateSymbolProvider(context->ProcessItem->ProcessId);
PhLoadSymbolProviderOptions(context->SymbolProvider);
if (!context->SymbolProvider || !context->SymbolProvider->IsRealHandle)
{
PhShowError(hwndDlg, L"Unable to open the process.");
EndDialog(hwndDlg, IDCANCEL);
break;
}
context->ProcessHandle = context->SymbolProvider->ProcessHandle;
// Load symbols for both process and kernel modules.
context->LoadingSymbolsForProcessId = context->ProcessItem->ProcessId;
PhEnumGenericModules(
NULL,
context->ProcessHandle,
0,
EnumGenericModulesCallback,
context
);
context->LoadingSymbolsForProcessId = SYSTEM_PROCESS_ID;
PhEnumGenericModules(
SYSTEM_PROCESS_ID,
NULL,
0,
EnumGenericModulesCallback,
context
);
context->Enabled = EtpUpdateWsWatch(hwndDlg, context);
if (context->Enabled)
{
// WS Watch is already enabled for the process. Enable updating.
EnableWindow(GetDlgItem(hwndDlg, IDC_ENABLE), FALSE);
ShowWindow(GetDlgItem(hwndDlg, IDC_WSWATCHENABLED), SW_SHOW);
SetTimer(hwndDlg, 1, 1000, NULL);
}
else
{
// WS Watch has not yet been enabled for the process.
}
}
break;
case WM_DESTROY:
{
context->Destroying = TRUE;
PhDereferenceObject(context->Hashtable);
if (context->Buffer)
{
PhFree(context->Buffer);
context->Buffer = NULL;
}
}
break;
case WM_COMMAND:
{
switch (LOWORD(wParam))
{
case IDCANCEL:
case IDOK:
EndDialog(hwndDlg, IDOK);
break;
case IDC_ENABLE:
{
NTSTATUS status;
HANDLE processHandle;
if (NT_SUCCESS(status = PhOpenProcess(
&processHandle,
PROCESS_SET_INFORMATION,
context->ProcessItem->ProcessId
)))
{
status = NtSetInformationProcess(
processHandle,
ProcessWorkingSetWatchEx,
NULL,
0
);
NtClose(processHandle);
}
if (NT_SUCCESS(status))
{
EnableWindow(GetDlgItem(hwndDlg, IDC_ENABLE), FALSE);
ShowWindow(GetDlgItem(hwndDlg, IDC_WSWATCHENABLED), SW_SHOW);
SetTimer(hwndDlg, 1, 1000, NULL);
}
else
{
PhShowStatus(hwndDlg, L"Unable to enable WS watch", status, 0);
}
}
break;
}
}
break;
case WM_NOTIFY:
{
PhHandleListViewNotifyForCopy(lParam, context->ListViewHandle);
}
break;
case WM_TIMER:
{
switch (wParam)
{
case 1:
{
EtpUpdateWsWatch(hwndDlg, context);
}
break;
}
}
break;
}
return FALSE;
}
