/*
- ReactOS Kernel Streaming
- IRP Helpers
-*/
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS Kernel Streaming
+ * FILE: drivers/ksfilter/ks/factory.c
+ * PURPOSE: KS Allocator functions
+ * PROGRAMMER: Johannes Anderwald
+ */
-#include <ks.h>
-#define TAG(A, B, C, D) (IN ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) + ((D)<<24))
+#include "priv.h"
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAcquireResetValue(
- IN PIRP Irp,
- OUT KSRESET* ResetValue)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsDispatchQuerySecurity(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PKSOBJECT_CREATE_ITEM CreateItem;
+ PIO_STACK_LOCATION IoStack;
+ NTSTATUS Status;
+ ULONG Length;
+
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ /* get create item */
+ CreateItem = KSCREATE_ITEM_IRP_STORAGE(Irp);
+
+ if (!CreateItem || !CreateItem->SecurityDescriptor)
+ {
+ /* no create item */
+ Irp->IoStatus.Status = STATUS_NO_SECURITY_ON_OBJECT;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_NO_SECURITY_ON_OBJECT;
+ }
+
+
+ /* get input length */
+ Length = IoStack->Parameters.QuerySecurity.Length;
+
+ /* clone the security descriptor */
+ Status = SeQuerySecurityDescriptorInfo(&IoStack->Parameters.QuerySecurity.SecurityInformation, (PSECURITY_DESCRIPTOR)Irp->UserBuffer, &Length, &CreateItem->SecurityDescriptor);
+
+ DPRINT("SeQuerySecurityDescriptorInfo Status %x\n", Status);
+ /* store result */
+ Irp->IoStatus.Status = Status;
+ Irp->IoStatus.Information = Length;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return Status;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsAddIrpToCancelableQueue(
- IN OUT PLIST_ENTRY QueueHead,
- IN PKSPIN_LOCK SpinLock,
- IN PIRP Irp,
- IN KSLIST_ENTRY_LOCATION ListLocation,
- IN PDRIVER_CANCEL DriverCancel OPTIONAL)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsDispatchSetSecurity(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
{
- UNIMPLEMENTED;
+ PKSOBJECT_CREATE_ITEM CreateItem;
+ PIO_STACK_LOCATION IoStack;
+ PGENERIC_MAPPING Mapping;
+ PSECURITY_DESCRIPTOR Descriptor;
+ NTSTATUS Status;
+
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ /* get create item */
+ CreateItem = KSCREATE_ITEM_IRP_STORAGE(Irp);
+
+ if (!CreateItem || !CreateItem->SecurityDescriptor)
+ {
+ /* no create item */
+ Irp->IoStatus.Status = STATUS_NO_SECURITY_ON_OBJECT;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_NO_SECURITY_ON_OBJECT;
+ }
+
+ /* backup old descriptor */
+ Descriptor = CreateItem->SecurityDescriptor;
+
+ /* get generic mapping */
+ Mapping = IoGetFileObjectGenericMapping();
+
+ /* change security descriptor */
+ Status = SeSetSecurityDescriptorInfo(NULL, /*FIXME */
+ &IoStack->Parameters.SetSecurity.SecurityInformation,
+ IoStack->Parameters.SetSecurity.SecurityDescriptor,
+ &CreateItem->SecurityDescriptor,
+ NonPagedPool,
+ Mapping);
+
+ if (NT_SUCCESS(Status))
+ {
+ /* free old descriptor */
+ ExFreePool(Descriptor);
+
+ /* mark create item as changed */
+ CreateItem->Flags |= KSCREATE_ITEM_SECURITYCHANGED;
+ }
+
+ /* store result */
+ Irp->IoStatus.Status = Status;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return Status;
}
/*
@unimplemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAddObjectCreateItemToDeviceHeader(
- IN KSDEVICE_HEADER Header,
- IN PDRIVER_DISPATCH Create,
- IN PVOID Context,
- IN PWCHAR ObjectClass,
- IN PSECURITY_DESCRIPTOR SecurityDescriptor)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsDispatchSpecificMethod(
+ IN PIRP Irp,
+ IN PFNKSHANDLER Handler)
{
UNIMPLEMENTED;
return STATUS_UNSUCCESSFUL;
}
+
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAddObjectCreateItemToObjectHeader(
- IN KSOBJECT_HEADER Header,
- IN PDRIVER_DISPATCH Create,
- IN PVOID Context,
- IN PWCHAR ObjectClass,
- IN PSECURITY_DESCRIPTOR SecurityDescriptor)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsReadFile(
+ IN PFILE_OBJECT FileObject,
+ IN PKEVENT Event OPTIONAL,
+ IN PVOID PortContext OPTIONAL,
+ OUT PIO_STATUS_BLOCK IoStatusBlock,
+ OUT PVOID Buffer,
+ IN ULONG Length,
+ IN ULONG Key OPTIONAL,
+ IN KPROCESSOR_MODE RequestorMode)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PDEVICE_OBJECT DeviceObject;
+ PIRP Irp;
+ NTSTATUS Status;
+ BOOLEAN Result;
+ KEVENT LocalEvent;
+
+ if (Event)
+ {
+ /* make sure event is reset */
+ KeClearEvent(Event);
+ }
+
+ if (RequestorMode == UserMode)
+ {
+ /* probe the user buffer */
+ _SEH2_TRY
+ {
+ ProbeForWrite(Buffer, Length, sizeof(UCHAR));
+ Status = STATUS_SUCCESS;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Invalid user buffer provided\n");
+ return Status;
+ }
+ }
+
+ /* get corresponding device object */
+ DeviceObject = IoGetRelatedDeviceObject(FileObject);
+
+ /* fast-io read is only available for kernel mode clients */
+ if (RequestorMode == KernelMode && ExGetPreviousMode() == KernelMode &&
+ DeviceObject->DriverObject->FastIoDispatch->FastIoRead)
+ {
+ /* call fast io write */
+ Result = DeviceObject->DriverObject->FastIoDispatch->FastIoRead(FileObject, &FileObject->CurrentByteOffset, Length, TRUE, Key, Buffer, IoStatusBlock, DeviceObject);
+
+ if (Result && NT_SUCCESS(IoStatusBlock->Status))
+ {
+ /* request was handeled and succeeded */
+ return STATUS_SUCCESS;
+ }
+ }
+
+ /* do the slow way */
+ if (!Event)
+ {
+ /* initialize temp event */
+ KeInitializeEvent(&LocalEvent, NotificationEvent, FALSE);
+ Event = &LocalEvent;
+ }
+
+ /* build the irp packet */
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_READ, DeviceObject, Buffer, Length, &FileObject->CurrentByteOffset, Event, IoStatusBlock);
+ if (!Irp)
+ {
+ /* not enough resources */
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* send the packet */
+ Status = IoCallDriver(DeviceObject, Irp);
+
+ if (Status == STATUS_PENDING)
+ {
+ /* operation is pending, is sync file object */
+ if (FileObject->Flags & FO_SYNCHRONOUS_IO)
+ {
+ /* it is so wait */
+ KeWaitForSingleObject(Event, Executive, RequestorMode, FALSE, NULL);
+ Status = IoStatusBlock->Status;
+ }
+ }
+ /* return result */
+ return Status;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAllocateDeviceHeader(
- OUT KSDEVICE_HEADER* Header,
- IN ULONG ItemsCount,
- IN PKSOBJECT_CREATE_ITEM ItemsList OPTIONAL)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsWriteFile(
+ IN PFILE_OBJECT FileObject,
+ IN PKEVENT Event OPTIONAL,
+ IN PVOID PortContext OPTIONAL,
+ OUT PIO_STATUS_BLOCK IoStatusBlock,
+ IN PVOID Buffer,
+ IN ULONG Length,
+ IN ULONG Key OPTIONAL,
+ IN KPROCESSOR_MODE RequestorMode)
{
- /* Allocates memory for the KSDEVICE_HEADER structure */
+ PDEVICE_OBJECT DeviceObject;
+ PIRP Irp;
+ NTSTATUS Status;
+ BOOLEAN Result;
+ KEVENT LocalEvent;
+
+ if (Event)
+ {
+ /* make sure event is reset */
+ KeClearEvent(Event);
+ }
+
+ if (RequestorMode == UserMode)
+ {
+ /* probe the user buffer */
+ _SEH2_TRY
+ {
+ ProbeForRead(Buffer, Length, sizeof(UCHAR));
+ Status = STATUS_SUCCESS;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Invalid user buffer provided\n");
+ return Status;
+ }
+ }
+
+ /* get corresponding device object */
+ DeviceObject = IoGetRelatedDeviceObject(FileObject);
- if ( ! Header )
- return STATUS_INVALID_PARAMETER;
+ /* fast-io write is only available for kernel mode clients */
+ if (RequestorMode == KernelMode && ExGetPreviousMode() == KernelMode &&
+ DeviceObject->DriverObject->FastIoDispatch->FastIoWrite)
+ {
+ /* call fast io write */
+ Result = DeviceObject->DriverObject->FastIoDispatch->FastIoWrite(FileObject, &FileObject->CurrentByteOffset, Length, TRUE, Key, Buffer, IoStatusBlock, DeviceObject);
+
+ if (Result && NT_SUCCESS(IoStatusBlock->Status))
+ {
+ /* request was handeled and succeeded */
+ return STATUS_SUCCESS;
+ }
+ }
- Header = ExAllocatePoolWithTag(PagedPool, sizeof(KSDEVICE_HEADER), TAG('H','D','S','K'));
+ /* do the slow way */
+ if (!Event)
+ {
+ /* initialize temp event */
+ KeInitializeEvent(&LocalEvent, NotificationEvent, FALSE);
+ Event = &LocalEvent;
+ }
- if ( ! Header )
+ /* build the irp packet */
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_WRITE, DeviceObject, Buffer, Length, &FileObject->CurrentByteOffset, Event, IoStatusBlock);
+ if (!Irp)
+ {
+ /* not enough resources */
return STATUS_INSUFFICIENT_RESOURCES;
+ }
- /* TODO: Actually do something with the header, perhaps? */
+ /* send the packet */
+ Status = IoCallDriver(DeviceObject, Irp);
- return STATUS_SUCCESS;
+ if (Status == STATUS_PENDING)
+ {
+ /* operation is pending, is sync file object */
+ if (FileObject->Flags & FO_SYNCHRONOUS_IO)
+ {
+ /* it is so wait */
+ KeWaitForSingleObject(Event, Executive, RequestorMode, FALSE, NULL);
+ Status = IoStatusBlock->Status;
+ }
+ }
+ /* return result */
+ return Status;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsFreeDeviceHeader(
- IN KSDEVICE_HEADER Header)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsQueryInformationFile(
+ IN PFILE_OBJECT FileObject,
+ OUT PVOID FileInformation,
+ IN ULONG Length,
+ IN FILE_INFORMATION_CLASS FileInformationClass)
{
- if ( ! Header )
- return;
+ PDEVICE_OBJECT DeviceObject;
+ PFAST_IO_DISPATCH FastIoDispatch;
+ PIRP Irp;
+ PIO_STACK_LOCATION IoStack;
+ IO_STATUS_BLOCK IoStatus;
+ KEVENT Event;
+ LARGE_INTEGER Offset;
+ IO_STATUS_BLOCK StatusBlock;
+ NTSTATUS Status;
+
+ /* get related file object */
+ DeviceObject = IoGetRelatedDeviceObject(FileObject);
+
+ /* get fast i/o table */
+ FastIoDispatch = DeviceObject->DriverObject->FastIoDispatch;
+
+ /* is there a fast table */
+ if (FastIoDispatch)
+ {
+ /* check the class */
+ if (FileInformationClass == FileBasicInformation)
+ {
+ /* use FastIoQueryBasicInfo routine */
+ if (FastIoDispatch->FastIoQueryBasicInfo)
+ {
+ return FastIoDispatch->FastIoQueryBasicInfo(FileObject, TRUE, (PFILE_BASIC_INFORMATION)FileInformation, &IoStatus, DeviceObject);
+ }
+ }
+ else if (FileInformationClass == FileStandardInformation)
+ {
+ /* use FastIoQueryBasicInfo routine */
+ if (FastIoDispatch->FastIoQueryBasicInfo)
+ {
+ return FastIoDispatch->FastIoQueryStandardInfo(FileObject, TRUE, (PFILE_STANDARD_INFORMATION)FileInformation, &IoStatus, DeviceObject);
+ }
+ }
+ }
+ /* clear event */
+ KeClearEvent(&FileObject->Event);
+
+ /* initialize event */
+ KeInitializeEvent(&Event, NotificationEvent, FALSE);
+
+ /* set offset to zero */
+ Offset.QuadPart = 0L;
+
+ /* build the request */
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_QUERY_INFORMATION, IoGetRelatedDeviceObject(FileObject), NULL, 0, &Offset, &Event, &StatusBlock);
- /* TODO: Free content first */
+ if (!Irp)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ /* get next stack location */
+ IoStack = IoGetNextIrpStackLocation(Irp);
+
+ /* setup parameters */
+ IoStack->Parameters.QueryFile.FileInformationClass = FileInformationClass;
+ IoStack->Parameters.QueryFile.Length = Length;
+ Irp->AssociatedIrp.SystemBuffer = FileInformation;
+
+
+ /* call the driver */
+ Status = IoCallDriver(IoGetRelatedDeviceObject(FileObject), Irp);
+
+ if (Status == STATUS_PENDING)
+ {
+ /* wait for the operation to complete */
+ KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
+
+ /* is object sync */
+ if (FileObject->Flags & FO_SYNCHRONOUS_IO)
+ Status = FileObject->FinalStatus;
+ else
+ Status = StatusBlock.Status;
+ }
- ExFreePoolWithTag(Header, TAG('H','D','S','K'));
+ /* done */
+ return Status;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAllocateExtraData(
- IN PIRP Irp,
- IN ULONG ExtraSize,
- OUT PVOID* ExtraBuffer)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsSetInformationFile(
+ IN PFILE_OBJECT FileObject,
+ IN PVOID FileInformation,
+ IN ULONG Length,
+ IN FILE_INFORMATION_CLASS FileInformationClass)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PIO_STACK_LOCATION IoStack;
+ PDEVICE_OBJECT DeviceObject;
+ PIRP Irp;
+ PVOID Buffer;
+ KEVENT Event;
+ LARGE_INTEGER Offset;
+ IO_STATUS_BLOCK IoStatus;
+ NTSTATUS Status;
+
+ /* get related device object */
+ DeviceObject = IoGetRelatedDeviceObject(FileObject);
+
+ /* copy file information */
+ Buffer = AllocateItem(NonPagedPool, Length);
+ if (!Buffer)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ _SEH2_TRY
+ {
+ ProbeForRead(Buffer, Length, sizeof(UCHAR));
+ RtlMoveMemory(Buffer, FileInformation, Length);
+ Status = STATUS_SUCCESS;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ if (!NT_SUCCESS(Status))
+ {
+ /* invalid user buffer */
+ FreeItem(Buffer);
+ return Status;
+ }
+
+ /* initialize the event */
+ KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
+
+ /* zero offset */
+ Offset.QuadPart = 0LL;
+
+ /* build the irp */
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_SET_INFORMATION, DeviceObject, NULL, 0, &Offset, &Event, &IoStatus);
+
+ if (!Irp)
+ {
+ /* failed to allocate irp */
+ FreeItem(Buffer);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* get next stack location */
+ IoStack = IoGetNextIrpStackLocation(Irp);
+
+ /* set irp parameters */
+ IoStack->Parameters.SetFile.FileInformationClass = FileInformationClass;
+ IoStack->Parameters.SetFile.Length = Length;
+ IoStack->Parameters.SetFile.FileObject = FileObject;
+ Irp->AssociatedIrp.SystemBuffer = Buffer;
+ Irp->UserBuffer = FileInformation;
+
+ /* dispatch the irp */
+ Status = IoCallDriver(DeviceObject, Irp);
+
+ if (Status == STATUS_PENDING)
+ {
+ /* wait untill the operation has completed */
+ KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
+ /* is a sync file object */
+ if (FileObject->Flags & FO_SYNCHRONOUS_IO)
+ Status = FileObject->FinalStatus;
+ else
+ Status = IoStatus.Status;
+ }
+ /* done */
+ return Status;
}
/*
- @unimplemented
-
- http://www.osronline.com/DDKx/stream/ksfunc_3sc3.htm
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAllocateObjectCreateItem(
- IN KSDEVICE_HEADER Header,
- IN PKSOBJECT_CREATE_ITEM CreateItem,
- IN BOOL AllocateEntry,
- IN PFNKSITEMFREECALLBACK ItemFreeCallback OPTIONAL)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsStreamIo(
+ IN PFILE_OBJECT FileObject,
+ IN PKEVENT Event OPTIONAL,
+ IN PVOID PortContext OPTIONAL,
+ IN PIO_COMPLETION_ROUTINE CompletionRoutine OPTIONAL,
+ IN PVOID CompletionContext OPTIONAL,
+ IN KSCOMPLETION_INVOCATION CompletionInvocationFlags OPTIONAL,
+ OUT PIO_STATUS_BLOCK IoStatusBlock,
+ IN OUT PVOID StreamHeaders,
+ IN ULONG Length,
+ IN ULONG Flags,
+ IN KPROCESSOR_MODE RequestorMode)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ PIRP Irp;
+ PIO_STACK_LOCATION IoStack;
+ PDEVICE_OBJECT DeviceObject;
+ NTSTATUS Status;
+ LARGE_INTEGER Offset;
+ PKSIOBJECT_HEADER ObjectHeader;
+ BOOLEAN Ret;
+
+ /* get related device object */
+ DeviceObject = IoGetRelatedDeviceObject(FileObject);
+ /* sanity check */
+ ASSERT(DeviceObject != NULL);
+
+ /* is there a event provided */
+ if (Event)
+ {
+ /* reset event */
+ KeClearEvent(Event);
+ }
-/*
- @unimplemented
+ if (RequestorMode || ExGetPreviousMode() == KernelMode)
+ {
+ /* requestor is from kernel land */
+ ObjectHeader = (PKSIOBJECT_HEADER)FileObject->FsContext2;
+
+ if (ObjectHeader)
+ {
+ /* there is a object header */
+ if (Flags == KSSTREAM_READ)
+ {
+ /* is fast read supported */
+ if (ObjectHeader->DispatchTable.FastRead)
+ {
+ /* call fast read dispatch routine */
+ Ret = ObjectHeader->DispatchTable.FastRead(FileObject, NULL, Length, FALSE, 0, StreamHeaders, IoStatusBlock, DeviceObject);
+
+ if (Ret)
+ {
+ /* the request was handeled */
+ return IoStatusBlock->Status;
+ }
+ }
+ }
+ else if (Flags == KSSTREAM_WRITE)
+ {
+ /* is fast write supported */
+ if (ObjectHeader->DispatchTable.FastWrite)
+ {
+ /* call fast write dispatch routine */
+ Ret = ObjectHeader->DispatchTable.FastWrite(FileObject, NULL, Length, FALSE, 0, StreamHeaders, IoStatusBlock, DeviceObject);
+
+ if (Ret)
+ {
+ /* the request was handeled */
+ return IoStatusBlock->Status;
+ }
+ }
+ }
+ }
+ }
+
+ /* clear file object event */
+ KeClearEvent(&FileObject->Event);
+
+ /* set the offset to zero */
+ Offset.QuadPart = 0LL;
+
+ /* now build the irp */
+ Irp = IoBuildSynchronousFsdRequest(IRP_MJ_DEVICE_CONTROL,
+ DeviceObject, (PVOID)StreamHeaders, Length, &Offset, Event, IoStatusBlock);
+ if (!Irp)
+ {
+ /* not enough memory */
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* setup irp parameters */
+ Irp->RequestorMode = RequestorMode;
+ Irp->Overlay.AsynchronousParameters.UserApcContext = PortContext;
+ Irp->Tail.Overlay.OriginalFileObject = FileObject;
+ Irp->UserBuffer = StreamHeaders;
+
+ /* get next irp stack location */
+ IoStack = IoGetNextIrpStackLocation(Irp);
+ /* setup stack parameters */
+ IoStack->FileObject = FileObject;
+ IoStack->Parameters.DeviceIoControl.InputBufferLength = Length;
+ IoStack->Parameters.DeviceIoControl.Type3InputBuffer = StreamHeaders;
+ IoStack->Parameters.DeviceIoControl.IoControlCode = (Flags == KSSTREAM_READ ? IOCTL_KS_READ_STREAM : IOCTL_KS_WRITE_STREAM);
+
+ if (CompletionRoutine)
+ {
+ /* setup completion routine for async processing */
+ IoSetCompletionRoutine(Irp, CompletionRoutine, CompletionContext, (CompletionInvocationFlags & KsInvokeOnSuccess), (CompletionInvocationFlags & KsInvokeOnError), (CompletionInvocationFlags & KsInvokeOnCancel));
+ }
- Initialize the required file context header.
- Allocates KSOBJECT_HEADER structure.
- Irp is an IRP_MJ_CREATE structure.
- Driver must allocate KSDISPATCH_TABLE and initialize it first.
+ /* now call the driver */
+ Status = IoCallDriver(DeviceObject, Irp);
+ /* done */
+ return Status;
+}
- http://www.osronline.com/DDKx/stream/ksfunc_0u2b.htm
+/*
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsAllocateObjectHeader(
- OUT PVOID Header,
- IN ULONG ItemsCount,
- IN PKSOBJECT_CREATE_ITEM ItemsList OPTIONAL,
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsProbeStreamIrp(
IN PIRP Irp,
- IN KSDISPATCH_TABLE* Table)
+ IN ULONG ProbeFlags,
+ IN ULONG HeaderSize)
{
- /* NOTE: PKSOBJECT_HEADER is not defined yet */
-#if 0
- PKSOBJECT_HEADER object_header;
+ PMDL Mdl;
+ PVOID Buffer;
+ LOCK_OPERATION Operation;
+ NTSTATUS Status = STATUS_SUCCESS;
+ PKSSTREAM_HEADER StreamHeader;
+ PIO_STACK_LOCATION IoStack;
+ ULONG Length;
+ BOOLEAN AllocateMdl = FALSE;
- /* TODO: Validate parameters */
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
- object_header = ExAllocatePoolWithTag(PagedPool, sizeof(KSOBJECT_HEADER), TAG('H','O','S','K'));
+ Length = IoStack->Parameters.DeviceIoControl.OutputBufferLength;
- if ( ! object_header )
+ if (Irp->RequestorMode == KernelMode || Irp->AssociatedIrp.SystemBuffer)
{
- return STATUS_INSUFFICIENT_RESOURCES;
+AllocMdl:
+ /* check if alloc mdl flag is passed */
+ if (!(ProbeFlags & KSPROBE_ALLOCATEMDL))
+ {
+ /* nothing more to do */
+ return STATUS_SUCCESS;
+ }
+ if (Irp->MdlAddress)
+ {
+ProbeMdl:
+ if (ProbeFlags & KSPROBE_PROBEANDLOCK)
+ {
+ if (Irp->MdlAddress->MdlFlags & (MDL_PAGES_LOCKED | MDL_SOURCE_IS_NONPAGED_POOL))
+ {
+ if (ProbeFlags & KSPROBE_SYSTEMADDRESS)
+ {
+ _SEH2_TRY
+ {
+ /* loop through all mdls and probe them */
+ Mdl = Irp->MdlAddress;
+ do
+ {
+ /* the mapping can fail */
+ Mdl->MdlFlags |= MDL_MAPPING_CAN_FAIL;
+
+ if (Mdl->MdlFlags & (MDL_MAPPED_TO_SYSTEM_VA | MDL_SOURCE_IS_NONPAGED_POOL))
+ {
+ /* no need to probe these pages */
+ Buffer = Mdl->MappedSystemVa;
+ }
+ else
+ {
+ /* probe that mdl */
+ Buffer = MmMapLockedPages(Mdl, KernelMode);
+ }
+
+ /* check if the mapping succeeded */
+ if (!Buffer)
+ {
+ /* raise exception we'll catch */
+ ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
+ }
+
+ /* iterate to next mdl */
+ Mdl = Mdl->Next;
+
+ }while(Mdl);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ } _SEH2_END;
+ }
+ }
+ else
+ {
+ _SEH2_TRY
+ {
+ /* loop through all mdls and probe them */
+ Mdl = Irp->MdlAddress;
+
+ /* determine operation */
+ Operation = (ProbeFlags & KSPROBE_STREAMWRITE) ? IoWriteAccess : IoReadAccess;
+
+ do
+ {
+ /* probe the pages */
+ MmProbeAndLockPages(Mdl, Irp->RequestorMode, Operation);
+
+ if (ProbeFlags & KSPROBE_SYSTEMADDRESS)
+ {
+ /* the mapping can fail */
+ Mdl->MdlFlags |= MDL_MAPPING_CAN_FAIL;
+
+ if (Mdl->MdlFlags & (MDL_MAPPED_TO_SYSTEM_VA | MDL_SOURCE_IS_NONPAGED_POOL))
+ {
+ /* no need to probe these pages */
+ Buffer = Mdl->MappedSystemVa;
+ }
+ else
+ {
+ /* probe that mdl */
+ Buffer = MmMapLockedPages(Mdl, KernelMode);
+ }
+
+ /* check if the mapping succeeded */
+ if (!Buffer)
+ {
+ /* raise exception we'll catch */
+ ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
+ }
+ }
+
+ /* iterate to next mdl */
+ Mdl = Mdl->Next;
+
+ }while(Mdl);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ } _SEH2_END;
+ }
+ }
+ return Status;
+ }
+
+ /* check all stream headers */
+ StreamHeader = (PKSSTREAM_HEADER)Irp->AssociatedIrp.SystemBuffer;
+ ASSERT(StreamHeader);
+ _SEH2_TRY
+ {
+ do
+ {
+ if (HeaderSize)
+ {
+ /* does the supplied header size match stream header size and no type changed */
+ if (StreamHeader->Size != HeaderSize && !(StreamHeader->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED))
+ {
+ /* invalid stream header */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+ }
+ else
+ {
+ /* stream must be at least of size KSSTREAM_HEADER and size must be 8-byte block aligned */
+ if (StreamHeader->Size < sizeof(KSSTREAM_HEADER) || (StreamHeader->Size & 7))
+ {
+ /* invalid stream header */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+ }
+
+ if (Length < StreamHeader->Size)
+ {
+ /* length is too short */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (ProbeFlags & KSPROBE_STREAMWRITE)
+ {
+ if (StreamHeader->DataUsed > StreamHeader->FrameExtent)
+ {
+ /* frame extend can never be smaller */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ /* is this stream change packet */
+ if (StreamHeader->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED)
+ {
+ if (Length != sizeof(KSSTREAM_HEADER) || (PVOID)StreamHeader != Irp->AssociatedIrp.SystemBuffer)
+ {
+ /* stream changed - must be send in a single packet */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (!(ProbeFlags & KSPROBE_ALLOWFORMATCHANGE))
+ {
+ /* caller does not permit format changes */
+ ExRaiseStatus(STATUS_INVALID_PARAMETER);
+ }
+
+ if (StreamHeader->FrameExtent)
+ {
+ /* allocate an mdl */
+ Mdl = IoAllocateMdl(StreamHeader->Data, StreamHeader->FrameExtent, FALSE, TRUE, Irp);
+
+ if (!Mdl)
+ {
+ /* not enough memory */
+ ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
+ }
+
+ /* break-out to probe for the irp */
+ break;
+ }
+ }
+ }
+ else
+ {
+ if (StreamHeader->DataUsed)
+ {
+ /* DataUsed must be zero for stream read operation */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (StreamHeader->OptionsFlags)
+ {
+ /* no flags supported for reading */
+ ExRaiseStatus(STATUS_INVALID_PARAMETER);
+ }
+ }
+
+ if (StreamHeader->FrameExtent)
+ {
+ /* allocate an mdl */
+ Mdl = IoAllocateMdl(StreamHeader->Data, StreamHeader->FrameExtent, Irp->MdlAddress != NULL, TRUE, Irp);
+ if (!Mdl)
+ {
+ /* not enough memory */
+ ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
+ }
+ }
+
+ /* move to next stream header */
+ Length -= StreamHeader->Size;
+ StreamHeader = (PKSSTREAM_HEADER)((ULONG_PTR)StreamHeader + StreamHeader->Size);
+ }while(Length);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }_SEH2_END;
+
+ /* now probe the allocated mdl's */
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT("Status %x\n", Status);
+ return Status;
+ }
+ else
+ goto ProbeMdl;
}
- (PVOID)(*Header) = object_header;
-
- /* TODO ... */
+#if 0
+ // HACK for MS PORTCLS
+ HeaderSize = Length;
#endif
+ /* probe user mode buffers */
+ if (Length && ( (!HeaderSize) || (Length % HeaderSize == 0) || ((ProbeFlags & KSPROBE_ALLOWFORMATCHANGE) && (Length == sizeof(KSSTREAM_HEADER))) ) )
+ {
+ /* allocate stream header buffer */
+ Irp->AssociatedIrp.SystemBuffer = ExAllocatePool(NonPagedPool, Length);
+
+ if (!Irp->AssociatedIrp.SystemBuffer)
+ {
+ /* no memory */
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ _SEH2_TRY
+ {
+ if (ProbeFlags & KSPROBE_STREAMWRITE)
+ {
+ if (ProbeFlags & KSPROBE_MODIFY)
+ ProbeForWrite(Irp->UserBuffer, Length, sizeof(UCHAR));
+ else
+ ProbeForRead(Irp->UserBuffer, Length, sizeof(UCHAR));
+ }
+ else
+ {
+ /* stream reads means writing */
+ ProbeForWrite(Irp->UserBuffer, Length, sizeof(UCHAR));
+ }
+
+ /* copy stream buffer */
+ RtlMoveMemory(Irp->AssociatedIrp.SystemBuffer, Irp->UserBuffer, Length);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }_SEH2_END;
+
+ if (!NT_SUCCESS(Status))
+ {
+ /* failed */
+ return Status;
+ }
+
+ if (ProbeFlags & KSPROBE_ALLOCATEMDL)
+ {
+ /* alloc mdls */
+ goto AllocMdl;
+ }
+
+ /* check all stream headers */
+ StreamHeader = (PKSSTREAM_HEADER)Irp->AssociatedIrp.SystemBuffer;
+
+ _SEH2_TRY
+ {
+ do
+ {
+ if (HeaderSize)
+ {
+ /* does the supplied header size match stream header size and no type changed */
+ if (StreamHeader->Size != HeaderSize && !(StreamHeader->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED))
+ {
+ /* invalid stream header */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+ }
+ else
+ {
+ /* stream must be at least of size KSSTREAM_HEADER and size must be 8-byte block aligned */
+ if (StreamHeader->Size < sizeof(KSSTREAM_HEADER) || (StreamHeader->Size & 7))
+ {
+ /* invalid stream header */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+ }
+
+ if (Length < StreamHeader->Size)
+ {
+ /* length is too short */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (ProbeFlags & KSPROBE_STREAMWRITE)
+ {
+ if (StreamHeader->DataUsed > StreamHeader->FrameExtent)
+ {
+ /* frame extend can never be smaller */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ /* is this stream change packet */
+ if (StreamHeader->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED)
+ {
+ if (Length != sizeof(KSSTREAM_HEADER) || (PVOID)StreamHeader != Irp->AssociatedIrp.SystemBuffer)
+ {
+ /* stream changed - must be send in a single packet */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (!(ProbeFlags & KSPROBE_ALLOWFORMATCHANGE))
+ {
+ /* caller does not permit format changes */
+ ExRaiseStatus(STATUS_INVALID_PARAMETER);
+ }
+
+ if (StreamHeader->FrameExtent)
+ {
+ /* allocate an mdl */
+ Mdl = IoAllocateMdl(StreamHeader->Data, StreamHeader->FrameExtent, FALSE, TRUE, Irp);
+
+ if (!Mdl)
+ {
+ /* not enough memory */
+ ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
+ }
+
+ /* break out to probe for the irp */
+ AllocateMdl = TRUE;
+ break;
+ }
+ }
+ }
+ else
+ {
+ if (StreamHeader->DataUsed)
+ {
+ /* DataUsed must be zero for stream read operation */
+ ExRaiseStatus(STATUS_INVALID_BUFFER_SIZE);
+ }
+
+ if (StreamHeader->OptionsFlags)
+ {
+ /* no flags supported for reading */
+ ExRaiseStatus(STATUS_INVALID_PARAMETER);
+ }
+ }
+
+ /* move to next stream header */
+ Length -= StreamHeader->Size;
+ StreamHeader = (PKSSTREAM_HEADER)((ULONG_PTR)StreamHeader + StreamHeader->Size);
+ }while(Length);
+
+ }_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }_SEH2_END;
+
+ /* now probe the allocated mdl's */
+ if (NT_SUCCESS(Status))
+ goto AllocMdl;
+ else
+ return Status;
+ }
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ return STATUS_INVALID_BUFFER_SIZE;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsFreeObjectHeader(
- IN PVOID Header)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsAllocateExtraData(
+ IN PIRP Irp,
+ IN ULONG ExtraSize,
+ OUT PVOID* ExtraBuffer)
{
- ExFreePoolWithTag(Header, TAG('H','O','S','K'));
+ PIO_STACK_LOCATION IoStack;
+ ULONG Count, Index;
+ PUCHAR Buffer, BufferOrg;
+ PKSSTREAM_HEADER Header;
+ NTSTATUS Status = STATUS_SUCCESS;
- /* TODO */
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
- UNIMPLEMENTED;
+ /* sanity check */
+ ASSERT(IoStack->Parameters.DeviceIoControl.InputBufferLength >= sizeof(KSSTREAM_HEADER));
+
+ /* get total length */
+ Count = IoStack->Parameters.DeviceIoControl.InputBufferLength / sizeof(KSSTREAM_HEADER);
+
+ /* allocate buffer */
+ Buffer = BufferOrg = AllocateItem(NonPagedPool, Count * (sizeof(KSSTREAM_HEADER) + ExtraSize));
+ if (!Buffer)
+ return STATUS_INSUFFICIENT_RESOURCES;
+
+ _SEH2_TRY
+ {
+ /* get input buffer */
+ Header = (PKSSTREAM_HEADER)IoStack->Parameters.DeviceIoControl.Type3InputBuffer;
+ for(Index = 0; Index < Count; Index++)
+ {
+ /* copy stream header */
+ RtlMoveMemory(Buffer, Header, sizeof(KSSTREAM_HEADER));
+
+ /* move to next header */
+ Header++;
+ /* increment output buffer offset */
+ Buffer += sizeof(KSSTREAM_HEADER) + ExtraSize;
+ }
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Exception, get the error code */
+ Status = _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ if (!NT_SUCCESS(Status))
+ {
+ /* free buffer on exception */
+ FreeItem(Buffer);
+ return Status;
+ }
+
+ /* store result */
+ *ExtraBuffer = BufferOrg;
+
+ /* done */
+ return STATUS_SUCCESS;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsCancelIo(
- IN OUT PLIST_ENTRY QueueHead,
- IN PKSPIN_LOCK SpinLock)
+KSDDKAPI
+VOID
+NTAPI
+KsNullDriverUnload(
+ IN PDRIVER_OBJECT DriverObject)
{
- UNIMPLEMENTED;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsCancelRoutine(
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsDispatchInvalidDeviceRequest(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
- UNIMPLEMENTED;
+ Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_INVALID_DEVICE_REQUEST;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
+KSDDKAPI
+NTSTATUS
+NTAPI
KsDefaultDeviceIoCompletion(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ PIO_STACK_LOCATION IoStack;
+ NTSTATUS Status;
-/*
- @unimplemented
-*/
-KSDDKAPI BOOLEAN NTAPI
-KsDispatchFastIoDeviceControlFailure(
- IN PFILE_OBJECT FileObject,
- IN BOOLEAN Wait,
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ if (IoStack->Parameters.DeviceIoControl.IoControlCode != IOCTL_KS_PROPERTY &&
+ IoStack->Parameters.DeviceIoControl.IoControlCode != IOCTL_KS_METHOD &&
+ IoStack->Parameters.DeviceIoControl.IoControlCode != IOCTL_KS_PROPERTY)
+ {
+ if (IoStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_KS_RESET_STATE)
+ {
+ /* fake success */
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ /* request unsupported */
+ Status = STATUS_INVALID_DEVICE_REQUEST;
+ }
+ }
+ else
+ {
+ /* property / method / event not found */
+ Status = STATUS_PROPSET_NOT_FOUND;
+ }
+
+ /* complete request */
+ Irp->IoStatus.Status = Status;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+
+ return Status;
+}
+
+/*
+ @implemented
+*/
+KSDDKAPI
+BOOLEAN
+NTAPI
+KsDispatchFastIoDeviceControlFailure(
+ IN PFILE_OBJECT FileObject,
+ IN BOOLEAN Wait,
IN PVOID InputBuffer OPTIONAL,
IN ULONG InputBufferLength,
OUT PVOID OutputBuffer OPTIONAL,
IN ULONG OutputBufferLength,
IN ULONG IoControlCode,
OUT PIO_STATUS_BLOCK IoStatus,
- IN PDEVICE_OBJECT DeviceObject) /* always return false */
+ IN PDEVICE_OBJECT DeviceObject)
{
return FALSE;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI BOOLEAN NTAPI
+KSDDKAPI
+BOOLEAN
+NTAPI
KsDispatchFastReadFailure(
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG LockKey,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
- IN PDEVICE_OBJECT DeviceObject) /* always return false */
+ IN PDEVICE_OBJECT DeviceObject)
{
return FALSE;
}
+
/*
- Used in dispatch table entries that aren't handled and need to return
- STATUS_INVALID_DEVICE_REQUEST.
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsDispatchInvalidDeviceRequest(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
+KSDDKAPI
+VOID
+NTAPI
+KsCancelIo(
+ IN OUT PLIST_ENTRY QueueHead,
+ IN PKSPIN_LOCK SpinLock)
{
- Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ PDRIVER_CANCEL OldDriverCancel;
+ PIO_STACK_LOCATION IoStack;
+ PLIST_ENTRY Entry;
+ PLIST_ENTRY NextEntry;
+ PIRP Irp;
+ KIRQL OldLevel;
+
+ /* acquire spinlock */
+ KeAcquireSpinLock(SpinLock, &OldLevel);
+ /* point to first entry */
+ Entry = QueueHead->Flink;
+ /* loop all items */
+ while(Entry != QueueHead)
+ {
+ /* get irp offset */
+ Irp = (PIRP)CONTAINING_RECORD(Entry, IRP, Tail.Overlay.ListEntry);
- return STATUS_INVALID_DEVICE_REQUEST;
-}
+ /* get next entry */
+ NextEntry = Entry->Flink;
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsDispatchIrp(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- /* Calls a dispatch routine corresponding to the function code of the IRP */
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ /* set cancelled bit */
+ Irp->Cancel = TRUE;
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsDispatchSpecificMethod(
- IN PIRP Irp,
- IN PFNKSHANDLER Handler)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ /* now set the cancel routine */
+ OldDriverCancel = IoSetCancelRoutine(Irp, NULL);
+ if (OldDriverCancel)
+ {
+ /* this irp hasnt been yet used, so free to cancel */
+ KeReleaseSpinLock(SpinLock, OldLevel);
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsDispatchSpecificProperty(
- IN PIRP Irp,
- IN PFNKSHANDLER Handler)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ /* acquire cancel spinlock */
+ IoAcquireCancelSpinLock(&Irp->CancelIrql);
+
+ /* call provided cancel routine */
+ OldDriverCancel(IoStack->DeviceObject, Irp);
+
+ /* re-acquire spinlock */
+ KeAcquireSpinLock(SpinLock, &OldLevel);
+ }
+
+ /* move on to next entry */
+ Entry = NextEntry;
+ }
+
+ /* the irp has already been canceled */
+ KeReleaseSpinLock(SpinLock, OldLevel);
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsForwardAndCatchIrp(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp,
- IN PFILE_OBJECT FileObject,
- IN KSSTACK_USE StackUse)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsForwardIrp(
+KSDDKAPI
+VOID
+NTAPI
+KsReleaseIrpOnCancelableQueue(
IN PIRP Irp,
- IN PFILE_OBJECT FileObject,
- IN BOOLEAN ReuseStackLocation)
+ IN PDRIVER_CANCEL DriverCancel OPTIONAL)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PKSPIN_LOCK SpinLock;
+ PDRIVER_CANCEL OldDriverCancel;
+ PIO_STACK_LOCATION IoStack;
+ KIRQL OldLevel;
+
+ /* check for required parameters */
+ if (!Irp)
+ return;
+
+ if (!DriverCancel)
+ {
+ /* default to KsCancelRoutine */
+ DriverCancel = KsCancelRoutine;
+ }
+
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ /* get internal queue lock */
+ SpinLock = KSQUEUE_SPINLOCK_IRP_STORAGE(Irp);
+
+ /* acquire spinlock */
+ KeAcquireSpinLock(SpinLock, &OldLevel);
+
+ /* now set the cancel routine */
+ OldDriverCancel = IoSetCancelRoutine(Irp, DriverCancel);
+
+ if (Irp->Cancel && OldDriverCancel == NULL)
+ {
+ /* the irp has already been canceled */
+ KeReleaseSpinLock(SpinLock, OldLevel);
+
+ /* cancel routine requires that cancel spinlock is held */
+ IoAcquireCancelSpinLock(&Irp->CancelIrql);
+
+ /* cancel irp */
+ DriverCancel(IoStack->DeviceObject, Irp);
+ }
+ else
+ {
+ /* done */
+ KeReleaseSpinLock(SpinLock, OldLevel);
+ }
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsGetChildCreateParameter(
- IN PIRP Irp,
- OUT PVOID* CreateParameter)
+KSDDKAPI
+PIRP
+NTAPI
+KsRemoveIrpFromCancelableQueue(
+ IN OUT PLIST_ENTRY QueueHead,
+ IN PKSPIN_LOCK SpinLock,
+ IN KSLIST_ENTRY_LOCATION ListLocation,
+ IN KSIRP_REMOVAL_OPERATION RemovalOperation)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PIRP Irp;
+ PLIST_ENTRY CurEntry;
+ KIRQL OldIrql;
+
+ //DPRINT("KsRemoveIrpFromCancelableQueue ListHead %p SpinLock %p ListLocation %x RemovalOperation %x\n", QueueHead, SpinLock, ListLocation, RemovalOperation);
+
+ /* check parameters */
+ if (!QueueHead || !SpinLock)
+ return NULL;
+
+ /* check if parameter ListLocation is valid */
+ if (ListLocation != KsListEntryTail && ListLocation != KsListEntryHead)
+ return NULL;
+
+ /* acquire list lock */
+ KeAcquireSpinLock(SpinLock, &OldIrql);
+
+ /* point to queue head */
+ CurEntry = QueueHead;
+
+ do
+ {
+ /* reset irp to null */
+ Irp = NULL;
+
+ /* iterate to next entry */
+ if (ListLocation == KsListEntryHead)
+ CurEntry = CurEntry->Flink;
+ else
+ CurEntry = CurEntry->Blink;
+
+ /* is the end of list reached */
+ if (CurEntry == QueueHead)
+ {
+ /* reached end of list */
+ break;
+ }
+
+ /* get irp offset */
+ Irp = (PIRP)CONTAINING_RECORD(CurEntry, IRP, Tail.Overlay.ListEntry);
+
+ if (Irp->Cancel)
+ {
+ /* irp has been canceled */
+ break;
+ }
+
+ if (Irp->CancelRoutine)
+ {
+ /* remove cancel routine */
+ Irp->CancelRoutine = NULL;
+
+ if (RemovalOperation == KsAcquireAndRemove || RemovalOperation == KsAcquireAndRemoveOnlySingleItem)
+ {
+ /* remove irp from list */
+ RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
+ }
+
+ if (RemovalOperation == KsAcquireAndRemoveOnlySingleItem || RemovalOperation == KsAcquireOnlySingleItem)
+ break;
+ }
+
+ }while(TRUE);
+
+ /* release lock */
+ KeReleaseSpinLock(SpinLock, OldIrql);
+
+ if (!Irp || Irp->CancelRoutine == NULL)
+ {
+ /* either an irp has been acquired or nothing found */
+ return Irp;
+ }
+
+ /* time to remove the canceled irp */
+ IoAcquireCancelSpinLock(&OldIrql);
+ /* acquire list lock */
+ KeAcquireSpinLockAtDpcLevel(SpinLock);
+
+ if (RemovalOperation == KsAcquireAndRemove || RemovalOperation == KsAcquireAndRemoveOnlySingleItem)
+ {
+ /* remove it */
+ RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
+ }
+
+ /* release list lock */
+ KeReleaseSpinLockFromDpcLevel(SpinLock);
+
+ /* release cancel spinlock */
+ IoReleaseCancelSpinLock(OldIrql);
+ /* no non canceled irp has been found */
+ return NULL;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
+KSDDKAPI
+NTSTATUS
+NTAPI
KsMoveIrpsOnCancelableQueue(
IN OUT PLIST_ENTRY SourceList,
IN PKSPIN_LOCK SourceLock,
IN PFNKSIRPLISTCALLBACK ListCallback,
IN PVOID Context)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ KIRQL OldLevel;
+ PLIST_ENTRY SrcEntry;
+ PIRP Irp;
+ NTSTATUS Status = STATUS_SUCCESS;
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsProbeStreamIrp(
- IN PIRP Irp,
- IN ULONG ProbeFlags,
- IN ULONG HeaderSize)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ if (!DestinationLock)
+ {
+ /* no destination lock just acquire the source lock */
+ KeAcquireSpinLock(SourceLock, &OldLevel);
+ }
+ else
+ {
+ /* acquire cancel spinlock */
+ IoAcquireCancelSpinLock(&OldLevel);
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsQueryInformationFile(
- IN PFILE_OBJECT FileObject,
- OUT PVOID FileInformation,
- IN ULONG Length,
- IN FILE_INFORMATION_CLASS FileInformationClass)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ /* now acquire source lock */
+ KeAcquireSpinLockAtDpcLevel(SourceLock);
-/*
- @unimplemented
-*/
-KSDDKAPI ACCESS_MASK NTAPI
-KsQueryObjectAccessMask(
- IN KSOBJECT_HEADER Header)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ /* now acquire destination lock */
+ KeAcquireSpinLockAtDpcLevel(DestinationLock);
+ }
-/*
- @unimplemented
-*/
-KSDDKAPI PKSOBJECT_CREATE_ITEM NTAPI
-KsQueryObjectCreateItem(
- IN KSOBJECT_HEADER Header)
-{
- UNIMPLEMENTED;
-/* return STATUS_UNSUCCESSFUL; */
- return NULL;
-}
+ /* point to list head */
+ SrcEntry = SourceList;
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsReadFile(
- IN PFILE_OBJECT FileObject,
- IN PKEVENT Event OPTIONAL,
- IN PVOID PortContext OPTIONAL,
- OUT PIO_STATUS_BLOCK IoStatusBlock,
- OUT PVOID Buffer,
- IN ULONG Length,
- IN ULONG Key OPTIONAL,
- IN KPROCESSOR_MODE RequestorMode)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ /* now move all irps */
+ while(TRUE)
+ {
+ if (ListLocation == KsListEntryTail)
+ {
+ /* move queue downwards */
+ SrcEntry = SrcEntry->Flink;
+ }
+ else
+ {
+ /* move queue upwards */
+ SrcEntry = SrcEntry->Blink;
+ }
+
+ if (SrcEntry == SourceList)
+ {
+ /* eof list reached */
+ break;
+ }
+
+ /* get irp offset */
+ Irp = (PIRP)CONTAINING_RECORD(SrcEntry, IRP, Tail.Overlay.ListEntry);
+
+ /* now check if irp can be moved */
+ Status = ListCallback(Irp, Context);
+
+ /* check if irp can be moved */
+ if (Status == STATUS_SUCCESS)
+ {
+ /* remove irp from src list */
+ RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
+
+ if (ListLocation == KsListEntryTail)
+ {
+ /* insert irp end of list */
+ InsertTailList(DestinationList, &Irp->Tail.Overlay.ListEntry);
+ }
+ else
+ {
+ /* insert irp head of list */
+ InsertHeadList(DestinationList, &Irp->Tail.Overlay.ListEntry);
+ }
+
+ /* do we need to update the irp lock */
+ if (DestinationLock)
+ {
+ /* update irp lock */
+ KSQUEUE_SPINLOCK_IRP_STORAGE(Irp) = DestinationLock;
+ }
+ }
+ else
+ {
+ if (Status != STATUS_NO_MATCH)
+ {
+ /* callback decided to stop enumeration */
+ break;
+ }
+
+ /* reset return value */
+ Status = STATUS_SUCCESS;
+ }
+ }
+
+ if (!DestinationLock)
+ {
+ /* release source lock */
+ KeReleaseSpinLock(SourceLock, OldLevel);
+ }
+ else
+ {
+ /* now release destination lock */
+ KeReleaseSpinLockFromDpcLevel(DestinationLock);
+
+ /* now release source lock */
+ KeReleaseSpinLockFromDpcLevel(SourceLock);
+
+
+ /* now release cancel spinlock */
+ IoReleaseCancelSpinLock(OldLevel);
+ }
+
+ /* done */
+ return Status;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI VOID NTAPI
-KsReleaseIrpOnCancelableQueue(
- IN PIRP Irp,
- IN PDRIVER_CANCEL DriverCancel OPTIONAL)
+KSDDKAPI
+VOID
+NTAPI
+KsRemoveSpecificIrpFromCancelableQueue(
+ IN PIRP Irp)
{
- UNIMPLEMENTED;
+ PKSPIN_LOCK SpinLock;
+ KIRQL OldLevel;
+
+ DPRINT("KsRemoveSpecificIrpFromCancelableQueue %p\n", Irp);
+
+ /* get internal queue lock */
+ SpinLock = KSQUEUE_SPINLOCK_IRP_STORAGE(Irp);
+
+ /* acquire spinlock */
+ KeAcquireSpinLock(SpinLock, &OldLevel);
+
+ /* remove the irp from the list */
+ RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
+
+ /* release spinlock */
+ KeReleaseSpinLock(SpinLock, OldLevel);
}
+
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI PIRP NTAPI
-KsRemoveIrpFromCancelableQueue(
+KSDDKAPI
+VOID
+NTAPI
+KsAddIrpToCancelableQueue(
IN OUT PLIST_ENTRY QueueHead,
IN PKSPIN_LOCK SpinLock,
+ IN PIRP Irp,
IN KSLIST_ENTRY_LOCATION ListLocation,
- IN KSIRP_REMOVAL_OPERATION RemovalOperation)
+ IN PDRIVER_CANCEL DriverCancel OPTIONAL)
{
- UNIMPLEMENTED;
- return NULL;
- /*return STATUS_UNSUCCESSFUL; */
-}
+ PDRIVER_CANCEL OldDriverCancel;
+ PIO_STACK_LOCATION IoStack;
+ KIRQL OldLevel;
-/*
- @unimplemented
-*/
-KSDDKAPI VOID NTAPI
-KsRemoveSpecificIrpFromCancelableQueue(
- IN PIRP Irp)
-{
- UNIMPLEMENTED;
-}
+ DPRINT("KsAddIrpToCancelableQueue QueueHead %p SpinLock %p Irp %p ListLocation %x DriverCancel %p\n", QueueHead, SpinLock, Irp, ListLocation, DriverCancel);
+ /* check for required parameters */
+ if (!QueueHead || !SpinLock || !Irp)
+ return;
-/*
- @unimplemented
-*/
-KSDDKAPI NTSTATUS NTAPI
-KsSetInformationFile(
- IN PFILE_OBJECT FileObject,
- IN PVOID FileInformation,
- IN ULONG Length,
- IN FILE_INFORMATION_CLASS FileInformationClass)
-{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
-}
+ if (!DriverCancel)
+ {
+ /* default to KsCancelRoutine */
+ DriverCancel = KsCancelRoutine;
+ }
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+ /* acquire spinlock */
+ KeAcquireSpinLock(SpinLock, &OldLevel);
+
+ if (ListLocation == KsListEntryTail)
+ {
+ /* insert irp to tail of list */
+ InsertTailList(QueueHead, &Irp->Tail.Overlay.ListEntry);
+ }
+ else
+ {
+ /* insert irp to head of list */
+ InsertHeadList(QueueHead, &Irp->Tail.Overlay.ListEntry);
+ }
+
+ /* store internal queue lock */
+ KSQUEUE_SPINLOCK_IRP_STORAGE(Irp) = SpinLock;
+
+ /* now set the cancel routine */
+ OldDriverCancel = IoSetCancelRoutine(Irp, DriverCancel);
+
+ if (Irp->Cancel && OldDriverCancel == NULL)
+ {
+ /* the irp has already been canceled */
+ KeReleaseSpinLock(SpinLock, OldLevel);
+
+ /* cancel routine requires that cancel spinlock is held */
+ IoAcquireCancelSpinLock(&Irp->CancelIrql);
+
+ /* cancel irp */
+ DriverCancel(IoStack->DeviceObject, Irp);
+ }
+ else
+ {
+ /* done */
+ KeReleaseSpinLock(SpinLock, OldLevel);
+ }
+}
/*
- IRP handlers
- NOT USED
+ @implemented
*/
-#if 0
-static NTAPI
-NTSTATUS
-KsCreate(
+KSDDKAPI
+VOID
+NTAPI
+KsCancelRoutine(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
- DPRINT1("KS / Create\n");
- return STATUS_UNSUCCESSFUL;
-}
+ PKSPIN_LOCK SpinLock;
-static NTAPI
-NTSTATUS
-KsClose(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT1("KS / Close\n");
- return STATUS_UNSUCCESSFUL;
-}
+ /* get internal queue lock */
+ SpinLock = KSQUEUE_SPINLOCK_IRP_STORAGE(Irp);
-static NTAPI
-NTSTATUS
-KsDeviceControl(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT1("KS / DeviceControl\n");
- return STATUS_UNSUCCESSFUL;
-}
+ /* acquire spinlock */
+ KeAcquireSpinLockAtDpcLevel(SpinLock);
-static NTAPI
-NTSTATUS
-KsRead(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT1("KS / Read\n");
- return STATUS_UNSUCCESSFUL;
-}
+ /* sanity check */
+ ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
-static NTAPI
-NTSTATUS
-KsWrite(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT1("KS / Write\n");
- return STATUS_UNSUCCESSFUL;
+ /* release cancel spinlock */
+ IoReleaseCancelSpinLock(Irp->CancelIrql);
+
+ /* remove the irp from the list */
+ RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
+
+ /* release spinlock */
+ KeReleaseSpinLock(SpinLock, Irp->CancelIrql);
+
+ /* has the irp already been canceled */
+ if (Irp->IoStatus.Status != STATUS_CANCELLED)
+ {
+ /* let's complete it */
+ Irp->IoStatus.Status = STATUS_CANCELLED;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ }
}
-static NTAPI
NTSTATUS
-KsFlushBuffers(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
+FindMatchingCreateItem(
+ PLIST_ENTRY ListHead,
+ ULONG BufferSize,
+ LPWSTR Buffer,
+ OUT PCREATE_ITEM_ENTRY *OutCreateItem)
{
- DPRINT1("KS / FlushBuffers\n");
- return STATUS_UNSUCCESSFUL;
+ PLIST_ENTRY Entry;
+ PCREATE_ITEM_ENTRY CreateItemEntry;
+ UNICODE_STRING RefString;
+
+
+#ifndef MS_KSUSER
+ /* remove '\' slash */
+ Buffer++;
+ BufferSize -= sizeof(WCHAR);
+#endif
+
+ if (!wcschr(Buffer, L'\\'))
+ {
+ RtlInitUnicodeString(&RefString, Buffer);
+ }
+ else
+ {
+ RefString.Buffer = Buffer;
+ RefString.Length = RefString.MaximumLength = ((ULONG_PTR)wcschr(Buffer, L'\\') - (ULONG_PTR)Buffer);
+ }
+
+ /* point to first entry */
+ Entry = ListHead->Flink;
+
+ /* loop all device items */
+ while(Entry != ListHead)
+ {
+ /* get create item entry */
+ CreateItemEntry = (PCREATE_ITEM_ENTRY)CONTAINING_RECORD(Entry, CREATE_ITEM_ENTRY, Entry);
+
+ ASSERT(CreateItemEntry->CreateItem);
+
+ if(CreateItemEntry->CreateItem->Flags & KSCREATE_ITEM_WILDCARD)
+ {
+ /* create item is default */
+ *OutCreateItem = CreateItemEntry;
+ return STATUS_SUCCESS;
+ }
+
+ if (!CreateItemEntry->CreateItem->Create)
+ {
+ /* skip free create item */
+ Entry = Entry->Flink;
+ continue;
+ }
+
+ ASSERT(CreateItemEntry->CreateItem->ObjectClass.Buffer);
+
+ DPRINT("CreateItem %S Length %u Request %wZ %u\n", CreateItemEntry->CreateItem->ObjectClass.Buffer,
+ CreateItemEntry->CreateItem->ObjectClass.Length,
+ &RefString,
+ BufferSize);
+
+ if (CreateItemEntry->CreateItem->ObjectClass.Length > BufferSize)
+ {
+ /* create item doesnt match in length */
+ Entry = Entry->Flink;
+ continue;
+ }
+
+ /* now check if the object class is the same */
+ if (!RtlCompareUnicodeString(&CreateItemEntry->CreateItem->ObjectClass, &RefString, TRUE))
+ {
+ /* found matching create item */
+ *OutCreateItem = CreateItemEntry;
+ return STATUS_SUCCESS;
+ }
+ /* iterate to next */
+ Entry = Entry->Flink;
+ }
+
+ return STATUS_NOT_FOUND;
}
-static NTAPI
NTSTATUS
-KsQuerySecurity(
+NTAPI
+KspCreate(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
- DPRINT1("KS / QuerySecurity\n");
+ PCREATE_ITEM_ENTRY CreateItemEntry;
+ PIO_STACK_LOCATION IoStack;
+ PDEVICE_EXTENSION DeviceExtension;
+ PKSIDEVICE_HEADER DeviceHeader;
+ PKSIOBJECT_HEADER ObjectHeader;
+ NTSTATUS Status;
+
+ DPRINT("KS / CREATE\n");
+
+ /* get current stack location */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+ /* get device extension */
+ DeviceExtension = (PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
+ /* get device header */
+ DeviceHeader = DeviceExtension->DeviceHeader;
+
+
+ if (IoStack->FileObject->FileName.Buffer == NULL)
+ {
+ /* FIXME Pnp-Issue */
+ DPRINT("Using reference string hack\n");
+ Irp->IoStatus.Information = 0;
+ /* set return status */
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_SUCCESS;
+ }
+
+ if (IoStack->FileObject->RelatedFileObject != NULL)
+ {
+ /* request is to instantiate a pin / node / clock / allocator */
+ ObjectHeader = (PKSIOBJECT_HEADER)IoStack->FileObject->RelatedFileObject->FsContext2;
+
+ /* sanity check */
+ ASSERT(ObjectHeader);
+
+ /* find a matching a create item */
+ Status = FindMatchingCreateItem(&ObjectHeader->ItemList, IoStack->FileObject->FileName.Length, IoStack->FileObject->FileName.Buffer, &CreateItemEntry);
+ }
+ else
+ {
+ /* request to create a filter */
+ Status = FindMatchingCreateItem(&DeviceHeader->ItemList, IoStack->FileObject->FileName.Length, IoStack->FileObject->FileName.Buffer, &CreateItemEntry);
+ }
+
+ if (NT_SUCCESS(Status))
+ {
+ /* set object create item */
+ KSCREATE_ITEM_IRP_STORAGE(Irp) = CreateItemEntry->CreateItem;
+
+ /* call create function */
+ Status = CreateItemEntry->CreateItem->Create(DeviceObject, Irp);
+
+ if (NT_SUCCESS(Status))
+ {
+ /* increment create item reference count */
+ InterlockedIncrement(&CreateItemEntry->ReferenceCount);
+ }
+ return Status;
+ }
+
+ Irp->IoStatus.Information = 0;
+ /* set return status */
+ Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_UNSUCCESSFUL;
}
-static NTAPI
NTSTATUS
-KsSetSecurity(
+NTAPI
+KspDispatchIrp(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
- DPRINT1("KS / SetSecurity\n");
- return STATUS_UNSUCCESSFUL;
-}
-#endif
+ PIO_STACK_LOCATION IoStack;
+ PDEVICE_EXTENSION DeviceExtension;
+ PKSIOBJECT_HEADER ObjectHeader;
+ PKSIDEVICE_HEADER DeviceHeader;
+ PDRIVER_DISPATCH Dispatch;
+ NTSTATUS Status;
+ /* get current stack location */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
-static NTAPI
-NTSTATUS
-KsInternalIrpDispatcher(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- /* TODO - Nothing implemented really yet! */
+ /* get device extension */
+ DeviceExtension = (PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
+ /* get device header */
+ DeviceHeader = DeviceExtension->DeviceHeader;
- DPRINT1("KS IRP dispatch function called\n");
+ ASSERT(IoStack->FileObject);
- //PKSDISPATCH_TABLE ks_dispatch_table = NULL;
+ /* get object header */
+ ObjectHeader = (PKSIOBJECT_HEADER) IoStack->FileObject->FsContext2;
- /* ks_dispatch_table is the first element in a structure pointed to by FsContext */
+ if (!ObjectHeader)
+ {
+ /* FIXME Pnp-Issue*/
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+ /* complete and forget */
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_SUCCESS;
+ }
+
+ /* sanity check */
+ ASSERT(ObjectHeader);
+ /* store create item */
+ //KSCREATE_ITEM_IRP_STORAGE(Irp) = (PKSOBJECT_CREATE_ITEM)0x12345678; //ObjectHeader->CreateItem;
- switch ( IoGetCurrentIrpStackLocation(Irp)->MajorFunction )
+ /* retrieve matching dispatch function */
+ switch(IoStack->MajorFunction)
{
- case IRP_MJ_CREATE :
-/* return ks_dispatch_table->Create(DeviceObject, Irp);*/
+ case IRP_MJ_CLOSE:
+ Dispatch = ObjectHeader->DispatchTable.Close;
+ break;
+ case IRP_MJ_DEVICE_CONTROL:
+ Dispatch = ObjectHeader->DispatchTable.DeviceIoControl;
+ break;
+ case IRP_MJ_READ:
+ Dispatch = ObjectHeader->DispatchTable.Read;
+ break;
+ case IRP_MJ_WRITE:
+ Dispatch = ObjectHeader->DispatchTable.Write;
+ break;
+ case IRP_MJ_FLUSH_BUFFERS :
+ Dispatch = ObjectHeader->DispatchTable.Flush;
+ break;
+ case IRP_MJ_QUERY_SECURITY:
+ Dispatch = ObjectHeader->DispatchTable.QuerySecurity;
+ break;
+ case IRP_MJ_SET_SECURITY:
+ Dispatch = ObjectHeader->DispatchTable.SetSecurity;
+ break;
+ case IRP_MJ_PNP:
+ Dispatch = KsDefaultDispatchPnp;
+ default:
+ Dispatch = NULL;
+ }
- /* TODO ... */
+ /* is the request supported */
+ if (Dispatch)
+ {
+ /* now call the dispatch function */
+ Status = Dispatch(DeviceObject, Irp);
+ }
+ else
+ {
+ /* not supported request */
+ Status = KsDispatchInvalidDeviceRequest(DeviceObject, Irp);
+ }
- default :
- return STATUS_INVALID_PARAMETER;
- };
+ /* done */
+ return Status;
}
-
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
+KSDDKAPI
+NTSTATUS
+NTAPI
KsSetMajorFunctionHandler(
IN PDRIVER_OBJECT DriverObject,
IN ULONG MajorFunction)
{
- /*
- Sets a DriverObject's major function handler to point to an internal
- function we implement.
-
- TODO: Deal with KSDISPATCH_FASTIO
- */
+ DPRINT("KsSetMajorFunctionHandler Function %x\n", MajorFunction);
+#if 1
+ // HACK
+ // for MS PORTCLS
+ //
+ DriverObject->MajorFunction[IRP_MJ_CREATE] = KspCreate;
+#endif
switch ( MajorFunction )
{
- case IRP_MJ_CREATE :
- case IRP_MJ_CLOSE :
- case IRP_MJ_DEVICE_CONTROL :
- case IRP_MJ_READ :
- case IRP_MJ_WRITE :
+ case IRP_MJ_CREATE:
+ DriverObject->MajorFunction[MajorFunction] = KspCreate;
+ break;
+ case IRP_MJ_DEVICE_CONTROL:
+ case IRP_MJ_CLOSE:
+ case IRP_MJ_READ:
+ case IRP_MJ_WRITE:
case IRP_MJ_FLUSH_BUFFERS :
- case IRP_MJ_QUERY_SECURITY :
- case IRP_MJ_SET_SECURITY :
- DriverObject->MajorFunction[MajorFunction] = KsInternalIrpDispatcher;
+ case IRP_MJ_QUERY_SECURITY:
+ case IRP_MJ_SET_SECURITY:
+ DriverObject->MajorFunction[MajorFunction] = KspDispatchIrp;
break;
-
- default :
- return STATUS_INVALID_PARAMETER; /* is this right? */
+ default:
+ DPRINT1("NotSupported %x\n", MajorFunction);
+ return STATUS_INVALID_PARAMETER;
};
return STATUS_SUCCESS;
}
/*
- @unimplemented
+ @implemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsStreamIo(
- IN PFILE_OBJECT FileObject,
- IN PKEVENT Event OPTIONAL,
- IN PVOID PortContext OPTIONAL,
- IN PIO_COMPLETION_ROUTINE CompletionRoutine OPTIONAL,
- IN PVOID CompletionContext OPTIONAL,
- IN KSCOMPLETION_INVOCATION CompletionInvocationFlags OPTIONAL,
- OUT PIO_STATUS_BLOCK IoStatusBlock,
- IN OUT PVOID StreamHeaders,
- IN ULONG Length,
- IN ULONG Flags,
- IN KPROCESSOR_MODE RequestorMode)
+KSDDKAPI
+NTSTATUS
+NTAPI
+KsDispatchIrp(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ PIO_STACK_LOCATION IoStack;
+ PKSIDEVICE_HEADER DeviceHeader;
+ PDEVICE_EXTENSION DeviceExtension;
+
+ //DPRINT("KsDispatchIrp DeviceObject %p Irp %p\n", DeviceObject, Irp);
+
+ /* get device extension */
+ DeviceExtension = (PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
+ /* get device header */
+ DeviceHeader = DeviceExtension->DeviceHeader;
+
+
+ /* get current irp stack */
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ if (IoStack->MajorFunction <= IRP_MJ_DEVICE_CONTROL)
+ {
+ if (IoStack->MajorFunction == IRP_MJ_CREATE)
+ {
+ /* check internal type */
+ if (DeviceHeader->BasicHeader.OuterUnknown) /* FIXME improve check */
+ {
+ /* AVStream client */
+ return IKsDevice_Create(DeviceObject, Irp);
+ }
+ else
+ {
+ /* external client (portcls) */
+ return KspCreate(DeviceObject, Irp);
+ }
+ }
+
+ switch (IoStack->MajorFunction)
+ {
+ case IRP_MJ_CLOSE:
+ case IRP_MJ_READ:
+ case IRP_MJ_WRITE:
+ case IRP_MJ_FLUSH_BUFFERS:
+ case IRP_MJ_QUERY_SECURITY:
+ case IRP_MJ_SET_SECURITY:
+ case IRP_MJ_PNP:
+ case IRP_MJ_DEVICE_CONTROL:
+ return KspDispatchIrp(DeviceObject, Irp);
+ default:
+ return KsDispatchInvalidDeviceRequest(DeviceObject, Irp);
+ }
+ }
+
+ /* dispatch power */
+ if (IoStack->MajorFunction == IRP_MJ_POWER)
+ {
+ /* check internal type */
+ if (DeviceHeader->BasicHeader.OuterUnknown) /* FIXME improve check */
+ {
+ /* AVStream client */
+ return IKsDevice_Power(DeviceObject, Irp);
+ }
+ else
+ {
+ /* external client (portcls) */
+ return KsDefaultDispatchPower(DeviceObject, Irp);
+ }
+ }
+ else if (IoStack->MajorFunction == IRP_MJ_PNP) /* dispatch pnp */
+ {
+ /* check internal type */
+ if (DeviceHeader->BasicHeader.OuterUnknown) /* FIXME improve check */
+ {
+ /* AVStream client */
+ return IKsDevice_Pnp(DeviceObject, Irp);
+ }
+ else
+ {
+ /* external client (portcls) */
+ return KsDefaultDispatchPnp(DeviceObject, Irp);
+ }
+ }
+ else if (IoStack->MajorFunction == IRP_MJ_SYSTEM_CONTROL)
+ {
+ /* forward irp */
+ return KsDefaultForwardIrp(DeviceObject, Irp);
+ }
+ else
+ {
+ /* not supported */
+ return KsDispatchInvalidDeviceRequest(DeviceObject, Irp);
+ }
}
/*
@unimplemented
*/
-KSDDKAPI NTSTATUS NTAPI
-KsWriteFile(
- IN PFILE_OBJECT FileObject,
- IN PKEVENT Event OPTIONAL,
- IN PVOID PortContext OPTIONAL,
- OUT PIO_STATUS_BLOCK IoStatusBlock,
- IN PVOID Buffer,
- IN ULONG Length,
- IN ULONG Key OPTIONAL,
- IN KPROCESSOR_MODE RequestorMode)
+KSDDKAPI
+ULONG
+NTAPI
+KsGetNodeIdFromIrp(
+ IN PIRP Irp)
{
- UNIMPLEMENTED;
- return STATUS_UNSUCCESSFUL;
+ UNIMPLEMENTED
+ return KSFILTER_NODE;
}
+
projects / reactos.git / blobdiff