mirror of
https://github.com/reactos/reactos.git
synced 2024-08-16 16:39:08 +00:00
![Amine Khaldi](/assets/img/avatar_default.png)
- Fix PIO_CSQ_INSERT_IRP_EX redefinition. [NTDDK] - Remove a couple of duplicate definitions. [XDK] - Move several definitions to their appropriate places. - Add COMPUTE_PAGES_SPANNED, NODE_REQUIREMENT, MM_ANY_NODE_OK, PNTFS_DEREF_EXPORTED_SECURITY_DESCRIPTOR, PsWrapApcWow64Thread, IRP_MN_DEVICE_ENUMERATED, USE_DMA_MACROS, NO_LEGACY_DRIVERS, FO_FLAGS_VALID_ONLY_DURING_CREATE, LOADER_PARTITION_INFORMATION_EX, BOOTDISK_INFORMATION_LITE, IO_CSQ_INSERT_IRP_EX, STATUS_CONTINUE_COMPLETION and several missing Ex*, REG_*, Cm*, Mm*, SL_*, Io*, IO_*, CONNECT_*, WDM_* and WMI* definitions. - Update ExGetCurrentResourceThread and PADAPTER_OBJECT. - Group some related definitions. [WDM] - Update wdm.h to reflect XDK changes. svn path=/branches/header-work/; revision=46290
308 lines
9.5 KiB
C
308 lines
9.5 KiB
C
/*
|
|
* Cancel-Safe Queue Library
|
|
* Created in 2004 by Vizzini (vizzini@plasmic.com)
|
|
*
|
|
* THIS SOFTWARE IS NOT COPYRIGHTED
|
|
*
|
|
* This source code is offered for use in the public domain. You may
|
|
* use, modify or distribute it freely.
|
|
*
|
|
* This code is distributed in the hope that it will be useful but
|
|
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
|
|
* DISCLAIMED. This includes but is not limited to warranties of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
*
|
|
* This header defines the interface to the ReactOS Cancel-Safe Queue library.
|
|
* This interface is based on and is similar to the Microsoft Cancel-Safe
|
|
* Queue interface.
|
|
*
|
|
* BACKGROUND
|
|
*
|
|
* IRP queuing is a royal pain in the butt, due to the fact that there are
|
|
* tons of built-in race conditions. IRP handling is difficult in general,
|
|
* but the cancel logic has been particularly complicated due to some subtle
|
|
* races, coupled with the fact that the system interfaces have changed over
|
|
* time.
|
|
*
|
|
* Walter Oney (2nd. Ed. of Programming the Windows Driver Model) states a
|
|
* common opinion among driver developers when he says that it is foolish
|
|
* to try to roll your own cancel logic. There are only a very few people
|
|
* who have gotten it right in the past. He suggests, instead, that you
|
|
* either use his own well-tested code, or use the code in the Microsoft
|
|
* Cancel-Safe Queue Library.
|
|
*
|
|
* We cannot do either, of course, due to copyright issues. I have therefore
|
|
* created this clone of the Microsoft library in order to concentrate all
|
|
* of the IRP-queuing bugs in one place. I'm quite sure there are problems
|
|
* here, so if you are a driver writer, I'd be glad to hear your feedback.
|
|
*
|
|
* Apart from that, please try to use these routines, rather than building
|
|
* your own. If you think you have found a bug, please bring it up with me
|
|
* or on-list, as this is complicated and non-obvious stuff. Don't just
|
|
* change this and hope for the best!
|
|
*
|
|
* USAGE
|
|
*
|
|
* This library follows exactly the same interface as the Microsoft Cancel-Safe
|
|
* Queue routines (IoCsqXxx()). As such, the authoritative reference is the
|
|
* current DDK. There is also a DDK sample called "cancel" that has an
|
|
* example of how to use this code. I have also provided a sample driver
|
|
* that makes use of this queue. Finally, please do read the header and the
|
|
* source if you're curious about the inner workings of these routines.
|
|
*/
|
|
|
|
#ifndef _REACTOS_CSQ_H
|
|
#define _REACTOS_CSQ_H
|
|
|
|
/*
|
|
* Prevent including the CSQ definitions twice. They're present in NTDDK
|
|
* now too, except the *_EX versions.
|
|
*/
|
|
#ifndef IO_TYPE_CSQ_IRP_CONTEXT
|
|
|
|
struct _IO_CSQ;
|
|
|
|
|
|
/*
|
|
* CSQ Callbacks
|
|
*
|
|
* The cancel-safe queue is implemented as a set of IoCsqXxx() OS routines
|
|
* copuled with a set of driver callbacks to handle the basic operations of
|
|
* the queue. You need to supply one of each of these functions in your own
|
|
* driver. These routines are also documented in the DDK under CsqXxx().
|
|
* That is the authoritative documentation.
|
|
*/
|
|
|
|
/*
|
|
* Function to insert an IRP in the queue. No need to worry about locking;
|
|
* just tack it onto your list or something.
|
|
*
|
|
* Sample implementation:
|
|
*
|
|
VOID NTAPI CsqInsertIrp(PIO_CSQ Csq, PIRP Irp)
|
|
{
|
|
KdPrint(("Inserting IRP 0x%x into CSQ\n", Irp));
|
|
InsertTailList(&IrpQueue, &Irp->Tail.Overlay.ListEntry);
|
|
}
|
|
*
|
|
*/
|
|
typedef VOID (NTAPI *PIO_CSQ_INSERT_IRP) (struct _IO_CSQ *Csq,
|
|
PIRP Irp);
|
|
|
|
|
|
/*
|
|
* Function to remove an IRP from the queue.
|
|
*
|
|
* Sample:
|
|
*
|
|
VOID NTAPI CsqRemoveIrp(PIO_CSQ Csq, PIRP Irp)
|
|
{
|
|
KdPrint(("Removing IRP 0x%x from CSQ\n", Irp));
|
|
RemoveEntryList(&Irp->Tail.Overlay.ListEntry);
|
|
}
|
|
*
|
|
*/
|
|
typedef VOID (NTAPI *PIO_CSQ_REMOVE_IRP) (struct _IO_CSQ *Csq,
|
|
PIRP Irp);
|
|
|
|
/*
|
|
* Function to look for an IRP in the queue
|
|
*
|
|
* Sample:
|
|
*
|
|
PIRP NTAPI CsqPeekNextIrp(PIO_CSQ Csq, PIRP Irp, PVOID PeekContext)
|
|
{
|
|
KdPrint(("Peeking for next IRP\n"));
|
|
|
|
if(Irp)
|
|
return CONTAINING_RECORD(&Irp->Tail.Overlay.ListEntry.Flink, IRP, Tail.Overlay.ListEntry);
|
|
|
|
if(IsListEmpty(&IrpQueue))
|
|
return NULL;
|
|
|
|
return CONTAINING_RECORD(IrpQueue.Flink, IRP, Tail.Overlay.ListEntry);
|
|
}
|
|
*
|
|
*/
|
|
typedef PIRP (NTAPI *PIO_CSQ_PEEK_NEXT_IRP) (struct _IO_CSQ *Csq,
|
|
PIRP Irp,
|
|
PVOID PeekContext);
|
|
|
|
/*
|
|
* Lock the queue. This can be a spinlock, a mutex, or whatever
|
|
* else floats your boat.
|
|
*
|
|
* Sample:
|
|
*
|
|
VOID NTAPI CsqAcquireLock(PIO_CSQ Csq, PKIRQL Irql)
|
|
{
|
|
KdPrint(("Acquiring spin lock\n"));
|
|
KeAcquireSpinLock(&IrpQueueLock, Irql);
|
|
}
|
|
*
|
|
*/
|
|
typedef VOID (NTAPI *PIO_CSQ_ACQUIRE_LOCK) (struct _IO_CSQ *Csq,
|
|
PKIRQL Irql);
|
|
|
|
/*
|
|
* Unlock the queue:
|
|
*
|
|
VOID NTAPI CsqReleaseLock(PIO_CSQ Csq, KIRQL Irql)
|
|
{
|
|
KdPrint(("Releasing spin lock\n"));
|
|
KeReleaseSpinLock(&IrpQueueLock, Irql);
|
|
}
|
|
*
|
|
*/
|
|
typedef VOID (NTAPI *PIO_CSQ_RELEASE_LOCK) (struct _IO_CSQ *Csq,
|
|
KIRQL Irql);
|
|
|
|
/*
|
|
* Finally, this is called by the queue library when it wants to complete
|
|
* a canceled IRP.
|
|
*
|
|
* Sample:
|
|
*
|
|
VOID NTAPI CsqCompleteCancelledIrp(PIO_CSQ Csq, PIRP Irp)
|
|
{
|
|
KdPrint(("cancelling irp 0x%x\n", Irp));
|
|
Irp->IoStatus.Status = STATUS_CANCELLED;
|
|
Irp->IoStatus.Information = 0;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
}
|
|
*
|
|
*/
|
|
typedef VOID (NTAPI *PIO_CSQ_COMPLETE_CANCELED_IRP) (struct _IO_CSQ *Csq,
|
|
PIRP Irp);
|
|
|
|
|
|
/*
|
|
* STRUCTURES
|
|
*
|
|
* NOTE: Please do not use these directly. You will make incompatible code
|
|
* if you do. Always only use the documented IoCsqXxx() interfaces and you
|
|
* will amass much Good Karma.
|
|
*/
|
|
#define IO_TYPE_CSQ_IRP_CONTEXT 1
|
|
#define IO_TYPE_CSQ 2
|
|
|
|
/*
|
|
* IO_CSQ - Queue control structure
|
|
*/
|
|
typedef struct _IO_CSQ {
|
|
ULONG Type;
|
|
PIO_CSQ_INSERT_IRP CsqInsertIrp;
|
|
PIO_CSQ_REMOVE_IRP CsqRemoveIrp;
|
|
PIO_CSQ_PEEK_NEXT_IRP CsqPeekNextIrp;
|
|
PIO_CSQ_ACQUIRE_LOCK CsqAcquireLock;
|
|
PIO_CSQ_RELEASE_LOCK CsqReleaseLock;
|
|
PIO_CSQ_COMPLETE_CANCELED_IRP CsqCompleteCanceledIrp;
|
|
PVOID ReservePointer; /* must be NULL */
|
|
} IO_CSQ, *PIO_CSQ;
|
|
|
|
/*
|
|
* IO_CSQ_IRP_CONTEXT - Context used to track an IRP in the CSQ
|
|
*/
|
|
typedef struct _IO_CSQ_IRP_CONTEXT {
|
|
ULONG Type;
|
|
PIRP Irp;
|
|
PIO_CSQ Csq;
|
|
} IO_CSQ_IRP_CONTEXT, *PIO_CSQ_IRP_CONTEXT;
|
|
|
|
#endif /* IO_TYPE_CSQ_IRP_CONTEXT */
|
|
|
|
/* See IO_TYPE_CSQ_* above */
|
|
#define IO_TYPE_CSQ_EX 3
|
|
|
|
/*
|
|
* Function to insert an IRP into the queue with extended context information.
|
|
* This is useful if you need to be able to de-queue particular IRPs more
|
|
* easily in some cases.
|
|
*
|
|
* Same deal as above; sample implementation:
|
|
*
|
|
NTSTATUS NTAPI CsqInsertIrpEx(PIO_CSQ Csq, PIRP Irp, PVOID InsertContext)
|
|
{
|
|
CsqInsertIrp(Csq, Irp);
|
|
return STATUS_PENDING;
|
|
}
|
|
*
|
|
*/
|
|
#ifndef IO_TYPE_CSQ_EX
|
|
typedef NTSTATUS (NTAPI *PIO_CSQ_INSERT_IRP_EX) (struct _IO_CSQ *Csq,
|
|
PIRP Irp,
|
|
PVOID InsertContext);
|
|
#endif
|
|
|
|
/*
|
|
* CANCEL-SAFE QUEUE DDIs
|
|
*
|
|
* These device driver interfaces are called to make use of the queue. Again,
|
|
* authoritative documentation for these functions is in the DDK. The csqtest
|
|
* driver also makes use of some of them.
|
|
*/
|
|
|
|
|
|
/*
|
|
* Call this in DriverEntry or similar in order to set up the Csq structure.
|
|
* As long as the Csq struct and the functions you pass in are resident,
|
|
* there are no IRQL restrictions.
|
|
*/
|
|
NTKERNELAPI
|
|
NTSTATUS NTAPI IoCsqInitialize(PIO_CSQ Csq,
|
|
PIO_CSQ_INSERT_IRP CsqInsertIrp,
|
|
PIO_CSQ_REMOVE_IRP CsqRemoveIrp,
|
|
PIO_CSQ_PEEK_NEXT_IRP CsqPeekNextIrp,
|
|
PIO_CSQ_ACQUIRE_LOCK CsqAcquireLock,
|
|
PIO_CSQ_RELEASE_LOCK CsqReleaseLock,
|
|
PIO_CSQ_COMPLETE_CANCELED_IRP CsqCompleteCanceledIrp);
|
|
|
|
/*
|
|
* Same as above, except you provide a CsqInsertIrpEx routine instead of
|
|
* CsqInsertIrp. This eventually allows you to supply extra tracking
|
|
* information for use with the queue.
|
|
*/
|
|
NTKERNELAPI
|
|
NTSTATUS NTAPI IoCsqInitializeEx(PIO_CSQ Csq,
|
|
PIO_CSQ_INSERT_IRP_EX CsqInsertIrpEx,
|
|
PIO_CSQ_REMOVE_IRP CsqRemoveIrp,
|
|
PIO_CSQ_PEEK_NEXT_IRP CsqPeekNextIrp,
|
|
PIO_CSQ_ACQUIRE_LOCK CsqAcquireLock,
|
|
PIO_CSQ_RELEASE_LOCK CsqReleaseLock,
|
|
PIO_CSQ_COMPLETE_CANCELED_IRP CsqCompleteCanceledIrp);
|
|
|
|
/*
|
|
* Insert an IRP into the queue
|
|
*/
|
|
NTKERNELAPI
|
|
VOID NTAPI IoCsqInsertIrp(PIO_CSQ Csq,
|
|
PIRP Irp,
|
|
PIO_CSQ_IRP_CONTEXT Context);
|
|
|
|
/*
|
|
* Insert an IRP into the queue, with special context maintained that
|
|
* makes it easy to find IRPs in the queue
|
|
*/
|
|
NTKERNELAPI
|
|
NTSTATUS NTAPI IoCsqInsertIrpEx(PIO_CSQ Csq,
|
|
PIRP Irp,
|
|
PIO_CSQ_IRP_CONTEXT Context,
|
|
PVOID InsertContext);
|
|
|
|
/*
|
|
* Remove a particular IRP from the queue
|
|
*/
|
|
NTKERNELAPI
|
|
PIRP NTAPI IoCsqRemoveIrp(PIO_CSQ Csq,
|
|
PIO_CSQ_IRP_CONTEXT Context);
|
|
|
|
/*
|
|
* Remove the next IRP from the queue
|
|
*/
|
|
NTKERNELAPI
|
|
PIRP NTAPI IoCsqRemoveNextIrp(PIO_CSQ Csq,
|
|
PVOID PeekContext);
|
|
|
|
#endif /* _REACTOS_CSQ_H */
|