sys: WIP

build/VStudio/winfsp.vcxproj

@@ -131,6 +131,7 @@
     <ClCompile Include="..\..\src\sys\fsctrl.c" />
     <ClCompile Include="..\..\src\sys\lockctrl.c" />
     <ClCompile Include="..\..\src\sys\read.c" />
+    <ClCompile Include="..\..\src\sys\resource.c" />
     <ClCompile Include="..\..\src\sys\security.c" />
     <ClCompile Include="..\..\src\sys\shutdown.c" />
     <ClCompile Include="..\..\src\sys\volinfo.c" />

build/VStudio/winfsp.vcxproj.filters

@@ -54,6 +54,9 @@
     <ClCompile Include="..\..\src\sys\read.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\sys\resource.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\sys\security.c">
       <Filter>Source Files</Filter>
     </ClCompile>

src/sys/close.c

@@ -20,5 +20,7 @@ FspClose(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/create.c

@@ -20,5 +20,7 @@ FspCreate(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/devctrl.c

@@ -20,5 +20,7 @@ FspDeviceControl(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/dirctrl.c

@@ -20,5 +20,7 @@ FspDirectoryControl(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/driver.c

@@ -22,9 +22,9 @@ DriverEntry(
     UNREFERENCED_PARAMETER(RegistryPath);
 
     NTSTATUS Status;
-    UNICODE_STRING DeviceName;
 
     /* create the file system device object */
+    UNICODE_STRING DeviceName;
     RtlInitUnicodeString(&DeviceName, L"" DRIVER_NAME);
     Status = IoCreateDevice(DriverObject, 0, &DeviceName, FILE_DEVICE_FILE_SYSTEM, 0, FALSE,
         &FspDeviceObject);
@@ -94,6 +94,17 @@ DriverEntry(
     FspFastIoDispatch.ReleaseForCcFlush = 0;
     DriverObject->FastIoDispatch = &FspFastIoDispatch;
 
+    /* setup filter callbacks */
+    FS_FILTER_CALLBACKS FspFilterCallbacks = { 0 };
+    FspFilterCallbacks.SizeOfFsFilterCallbacks = sizeof FspFilterCallbacks;
+    FspFilterCallbacks.PreAcquireForSectionSynchronization = FspAcquireForSectionSynchronization;
+    Status = FsRtlRegisterFileSystemFilterCallbacks(DriverObject, &FspFilterCallbacks);
+    if (!NT_SUCCESS(Status))
+    {
+        IoDeleteDevice(FspDeviceObject);
+        return Status;
+    }
+
     return STATUS_SUCCESS;
 }
 
@@ -102,6 +113,11 @@ FspUnload(
     _In_ PDRIVER_OBJECT DriverObject)
 {
     UNREFERENCED_PARAMETER(DriverObject);
+
+    PAGED_CODE();
+
+    if (0 != FspDeviceObject)
+        IoDeleteDevice(FspDeviceObject);
 }
 
 PDEVICE_OBJECT FspDeviceObject;

src/sys/driver.h

@@ -42,6 +42,12 @@ DRIVER_DISPATCH FspWrite;
 /* fast I/O */
 FAST_IO_CHECK_IF_POSSIBLE FspFastIoCheckIfPossible;
 
+/* filter callbacks */
+NTSTATUS
+FspAcquireForSectionSynchronization(
+    _In_ PFS_FILTER_CALLBACK_DATA Data,
+    _Out_ PVOID *CompletionContext);
+
 /* extern */
 PDEVICE_OBJECT FspDeviceObject;
 

src/sys/ea.c

@@ -22,6 +22,8 @@ FspQueryEa(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }
 
@@ -33,5 +35,7 @@ FspSetEa(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/fastio.c

@@ -33,5 +33,7 @@ FspFastIoCheckIfPossible(
     UNREFERENCED_PARAMETER(IoStatus);
     UNREFERENCED_PARAMETER(DeviceObject);
 
+    PAGED_CODE();
+
     return FALSE;
 }

src/sys/fileinfo.c

@@ -22,6 +22,8 @@ FspQueryInformation(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }
 
@@ -33,5 +35,7 @@ FspSetInformation(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/flush.c

@@ -20,5 +20,7 @@ FspFlushBuffers(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/fsctrl.c

@@ -20,5 +20,7 @@ FspFileSystemControl(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/lockctrl.c

@@ -20,5 +20,7 @@ FspLockControl(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/read.c

@@ -20,5 +20,7 @@ FspRead(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/resource.c

@@ -0,0 +1,29 @@
+/**
+ * @file sys/resource.c
+ *
+ * @copyright 2015 Bill Zissimopoulos
+ */
+
+#include <sys/driver.h>
+
+NTSTATUS
+FspAcquireForSectionSynchronization(
+    _In_ PFS_FILTER_CALLBACK_DATA Data,
+    _Out_ PVOID *CompletionContext);
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text(PAGE, FspCreate)
+#endif
+
+NTSTATUS
+FspAcquireForSectionSynchronization(
+    _In_ PFS_FILTER_CALLBACK_DATA Data,
+    _Out_ PVOID *CompletionContext)
+{
+    UNREFERENCED_PARAMETER(Data);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    PAGED_CODE();
+
+    return STATUS_NOT_IMPLEMENTED;
+}

src/sys/security.c

@@ -22,6 +22,8 @@ FspQuerySecurity(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }
 
@@ -33,5 +35,7 @@ FspSetSecurity(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/shutdown.c

@@ -20,5 +20,7 @@ FspShutdown(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/volinfo.c

@@ -22,6 +22,8 @@ FspQueryVolumeInformation(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }
 
@@ -33,5 +35,7 @@ FspSetVolumeInformation(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }

src/sys/write.c

@@ -20,5 +20,7 @@ FspWrite(
     UNREFERENCED_PARAMETER(DeviceObject);
     UNREFERENCED_PARAMETER(Irp);
 
+    PAGED_CODE();
+
     return STATUS_NOT_IMPLEMENTED;
 }