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[NTOSKRNL] Set the DRVO_BUILTIN_DRIVER DriverObject flag when a built-in driver is created using IoCreateDriver().

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Hermès Bélusca-Maïto 2018-04-03 02:14:48 +02:00
parent 635775d249
commit 45012aa486
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2 changed files with 14 additions and 5 deletions
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4
ntoskrnl/include/internal/io.h
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@ -1091,9 +1091,9 @@ NTSTATUS
NTAPI NTAPI
IopCreateDriver(IN PUNICODE_STRING DriverName OPTIONAL, IopCreateDriver(IN PUNICODE_STRING DriverName OPTIONAL,
IN PDRIVER_INITIALIZE InitializationFunction, IN PDRIVER_INITIALIZE InitializationFunction,
IN PUNICODE_STRING RegistryPath, IN PUNICODE_STRING RegistryPath OPTIONAL,
IN PCUNICODE_STRING ServiceName, IN PCUNICODE_STRING ServiceName,
PLDR_DATA_TABLE_ENTRY ModuleObject, IN PLDR_DATA_TABLE_ENTRY ModuleObject OPTIONAL,
OUT PDRIVER_OBJECT *pDriverObject); OUT PDRIVER_OBJECT *pDriverObject);
VOID VOID

15
ntoskrnl/io/iomgr/driver.c
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@ -1419,9 +1419,9 @@ NTSTATUS
NTAPI NTAPI
IopCreateDriver(IN PUNICODE_STRING DriverName OPTIONAL, IopCreateDriver(IN PUNICODE_STRING DriverName OPTIONAL,
IN PDRIVER_INITIALIZE InitializationFunction, IN PDRIVER_INITIALIZE InitializationFunction,
IN PUNICODE_STRING RegistryPath, IN PUNICODE_STRING RegistryPath OPTIONAL,
IN PCUNICODE_STRING ServiceName, IN PCUNICODE_STRING ServiceName,
PLDR_DATA_TABLE_ENTRY ModuleObject, IN PLDR_DATA_TABLE_ENTRY ModuleObject OPTIONAL,
OUT PDRIVER_OBJECT *pDriverObject) OUT PDRIVER_OBJECT *pDriverObject)
{ {
WCHAR NameBuffer[100]; WCHAR NameBuffer[100];
@ -1479,7 +1479,16 @@ try_again:
RtlZeroMemory(DriverObject, ObjectSize); RtlZeroMemory(DriverObject, ObjectSize);
DriverObject->Type = IO_TYPE_DRIVER; DriverObject->Type = IO_TYPE_DRIVER;
DriverObject->Size = sizeof(DRIVER_OBJECT); DriverObject->Size = sizeof(DRIVER_OBJECT);
DriverObject->Flags = DRVO_LEGACY_DRIVER;
/*
* Check whether RegistryPath and ModuleObject are both NULL because
* IoCreateDriver() was called to initialize a built-in driver.
*/
if ((RegistryPath != NULL) || (ModuleObject != NULL))
DriverObject->Flags = DRVO_LEGACY_DRIVER;
else
DriverObject->Flags = DRVO_BUILTIN_DRIVER;
DriverObject->DriverExtension = (PDRIVER_EXTENSION)(DriverObject + 1); DriverObject->DriverExtension = (PDRIVER_EXTENSION)(DriverObject + 1);
DriverObject->DriverExtension->DriverObject = DriverObject; DriverObject->DriverExtension->DriverObject = DriverObject;
DriverObject->DriverInit = InitializationFunction; DriverObject->DriverInit = InitializationFunction;