Solution build compiled without error but no .sys file created
I am currently working on a file system mini-filter driver in Windows. I've set up my development environment with the following:
Development Tools:
Visual Studio (latest version) Windows Driver Kit (WDK) Windows SDK Setup Details:
I configured the Include and Lib paths in the project properties to point to the WDK directories. My project builds without errors. However, despite a successful build, the .sys file is not being generated in the output directory. Below is the code I am using:
C Code :-
#include <fltKernel.h>
#include <dontuse.h>
#include <suppress.h>
PFLT_FILTER FilterHandle = NULL;
// Function declarations
NTSTATUS MiniUnload(FLT_FILTER_UNLOAD_FLAGS Flags);
FLT_POSTOP_CALLBACK_STATUS MiniPostCreate(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext,
FLT_POST_OPERATION_FLAGS Flags
);
FLT_PREOP_CALLBACK_STATUS MiniPreCreate(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext
);
FLT_PREOP_CALLBACK_STATUS MiniPreWrite(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext
);
// Callback structure
const FLT_OPERATION_REGISTRATION Callbacks[] = {
{ IRP_MJ_CREATE, 0, MiniPreCreate, MiniPostCreate },
{ IRP_MJ_WRITE, 0, MiniPreWrite, NULL },
{ IRP_MJ_OPERATION_END }
};
// Filter registration structure
const FLT_REGISTRATION FilterRegistration = {
sizeof(FLT_REGISTRATION), // Size
FLT_REGISTRATION_VERSION, // Version
0, // Flags
NULL, // Context registration
Callbacks, // Operation callbacks
MiniUnload, // Unload routine
NULL, // Instance setup
NULL, // Instance query teardown
NULL, // Instance teardown start
NULL, // Instance teardown complete
NULL, // Generate file name
NULL, // Normalize name component
NULL, // Normalize context cleanup
NULL // Transaction notification
};
// Unload routine
NTSTATUS MiniUnload(FLT_FILTER_UNLOAD_FLAGS Flags)
{
KdPrint(("Driver unloaded \r\n"));
FltUnregisterFilter(FilterHandle);
return STATUS_SUCCESS;
}
// Post-create callback
FLT_POSTOP_CALLBACK_STATUS MiniPostCreate(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext,
FLT_POST_OPERATION_FLAGS Flags
)
{
KdPrint(("Post create is running \r\n"));
return FLT_POSTOP_FINISHED_PROCESSING;
}
// Pre-create callback
FLT_PREOP_CALLBACK_STATUS MiniPreCreate(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext
)
{
PFLT_FILE_NAME_INFORMATION FileNameInfo;
NTSTATUS status;
WCHAR Name[200] = { 0 };
status = FltGetFileNameInformation(
Data,
FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT,
&FileNameInfo
);
if (NT_SUCCESS(status))
{
status = FltParseFileNameInformation(FileNameInfo);
if (NT_SUCCESS(status))
{
if (FileNameInfo->Name.MaximumLength < 260)
{
RtlCopyMemory(Name, FileNameInfo->Name.Buffer, FileNameInfo->Name.MaximumLength);
KdPrint(("Create file: %ws \r\n", Name));
}
}
FltReleaseFileNameInformation(FileNameInfo);
}
return FLT_PREOP_SUCCESS_WITH_CALLBACK;
}
// Pre-write callback
FLT_PREOP_CALLBACK_STATUS MiniPreWrite(
PFLT_CALLBACK_DATA Data,
PCFLT_RELATED_OBJECTS FltObjects,
PVOID* CompletionContext
)
{
PFLT_FILE_NAME_INFORMATION FileNameInfo;
NTSTATUS status;
WCHAR Name[200] = { 0 };
status = FltGetFileNameInformation(
Data,
FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT,
&FileNameInfo
);
if (NT_SUCCESS(status))
{
status = FltParseFileNameInformation(FileNameInfo);
if (NT_SUCCESS(status))
{
if (FileNameInfo->Name.MaximumLength < 260)
{
RtlCopyMemory(Name, FileNameInfo->Name.Buffer, FileNameInfo->Name.MaximumLength);
_wcsupr(Name); // Convert name to uppercase
if (wcsstr(Name, L"OPENME.TXT") != NULL)
{
KdPrint(("Write file: %ws blocked \r\n", Name));
Data->IoStatus.Status = STATUS_INVALID_PARAMETER;
Data->IoStatus.Information = 0;
FltReleaseFileNameInformation(FileNameInfo);
return FLT_PREOP_COMPLETE;
}
KdPrint(("Create file: %ws \r\n", Name));
}
}
FltReleaseFileNameInformation(FileNameInfo);
}
return FLT_PREOP_SUCCESS_NO_CALLBACK;
}
// Driver entry point
NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
NTSTATUS status;
status = FltRegisterFilter(DriverObject, &FilterRegistration, &FilterHandle);
if (NT_SUCCESS(status))
{
status = FltStartFiltering(FilterHandle);
if (!NT_SUCCESS(status))
{
FltUnregisterFilter(FilterHandle);
}
}
return status;
}
INF File
[Version]
Signature = "$Windows NT$"
Class = "ActivityMonitor"
ClassGuid = {b86dff51-a31e-4bac-b3cf-e8cfe75c9fc2}
Provider = "HelloWorld Corporation"
DriverVer =
CatalogFile = HelloWorld.cat
[DestinationDirs]
DefaultDestDir = 12
MiniFilter.DriverFiles = 12 ; %windir%\system32\drivers
[DefaultInstall]
OptionDesc = %ServiceDescription%
CopyFiles = MiniFilter.DriverFiles
[DefaultInstall.Services]
AddService = %ServiceName%,,MiniFilter.Service
[DefaultUninstall]
DelFiles = MiniFilter.DriverFiles
[DefaultUninstall.Services]
DelService = %ServiceName%,0x200
[MiniFilter.Service]
DisplayName = "HelloWorld Service"
Description = "HelloWorld Mini-Filter Driver"
ServiceBinary = %12%\HelloWorld.sys
Dependencies = "FltMgr"
ServiceType = 2
StartType = 3
ErrorControl = 1
LoadOrderGroup = "FSFilter Activity Monitor"
AddReg = MiniFilter.AddRegistry
[MiniFilter.AddRegistry]
HKR,,"DebugFlags",0x00010001,0x0
HKR,,"SupportedFeatures",0x00010001,0x3
HKR,"Instances","DefaultInstance",0x00000000,%DefaultInstance%
HKR,"Instances\"%Instance1.Name%,"Altitude",0x00000000,%Instance1.Altitude%
HKR,"Instances\"%Instance1.Name%,"Flags",0x00010001,%Instance1.Flags%
[MiniFilter.DriverFiles]
HelloWorld.sys
[SourceDisksFiles]
HelloWorld.sys = 1,,
[SourceDisksNames]
1 = %DiskId1%,,,
[Strings]
ManufacturerName = "HelloWorld Corporation"
ServiceDescription = "HelloWorld Mini-Filter Driver"
ServiceName = "HelloWorld"
DriverName = "HelloWorld"
DiskId1 = "HelloWorld Device Installation Disk"
DefaultInstance = "HelloWorld Instance"
Instance1.Name = "HelloWorld Instance"
Instance1.Altitude = "371000"
Instance1.Flags = 0x0
What I've Tried:
- Ensured the Driver type is selected in the project properties under Configuration Properties > Driver Settings.
- Verified the Target Platform is set to Desktop under Configuration Properties > General.
Problem: Even though the build completes without errors, the .sys file does not appear in the $(OutDir) folder. I suspect it might be a configuration issue or an oversight in the project setup.
What could be the cause of this issue, and how can I ensure the .sys file is generated?