167 lines
3.9 KiB
C
167 lines
3.9 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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vfpacket.h
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Abstract:
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This header exposes functions used to manage the verifier packet data that
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tracks IRPs.
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Author:
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Adrian J. Oney (adriao) 20-Apr-1998
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Environment:
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Kernel mode
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Revision History:
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AdriaO 05/02/2000 - Seperated out from ntos\io\hashirp.h
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--*/
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//
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// Currently, ntddk.h uses up to 0x2000 for Irp->Flags
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//
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#define IRPFLAG_EXAMINE_MASK 0xC0000000
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#define IRPFLAG_EXAMINE_NOT_TRACKED 0x80000000
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#define IRPFLAG_EXAMINE_TRACKED 0x40000000
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#define IRPFLAG_EXAMINE_UNMARKED 0x00000000
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#define TRACKFLAG_ACTIVE 0x00000001
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#define IRP_ALLOC_COUNT 8
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#define IRP_LOG_ENTRIES 16
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typedef enum {
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IOV_EVENT_NONE = 0,
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IOV_EVENT_IO_ALLOCATE_IRP,
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IOV_EVENT_IO_CALL_DRIVER,
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IOV_EVENT_IO_CALL_DRIVER_UNWIND,
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IOV_EVENT_IO_COMPLETE_REQUEST,
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IOV_EVENT_IO_COMPLETION_ROUTINE,
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IOV_EVENT_IO_COMPLETION_ROUTINE_UNWIND,
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IOV_EVENT_IO_CANCEL_IRP,
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IOV_EVENT_IO_FREE_IRP
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} IOV_LOG_EVENT;
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typedef struct {
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IOV_LOG_EVENT Event;
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PETHREAD Thread;
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PVOID Address;
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ULONG_PTR Data;
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LARGE_INTEGER TimeStamp;
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} IOV_LOG_ENTRY, *PIOV_LOG_ENTRY;
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struct _IOV_SESSION_DATA;
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struct _IOV_REQUEST_PACKET;
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typedef struct _IOV_SESSION_DATA *PIOV_SESSION_DATA;
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typedef struct _IOV_REQUEST_PACKET *PIOV_REQUEST_PACKET;
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typedef struct _IOV_REQUEST_PACKET {
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IOV_DATABASE_HEADER;
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ULONG Flags;
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KIRQL DepartureIrql; // Irql IRP will be dispatched at.
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KIRQL ArrivalIrql; // Irql IRP was sent in at.
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LIST_ENTRY SessionHead; // List of all sessions.
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CCHAR StackCount; // StackCount of tracked IRP.
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ULONG QuotaCharge; // Quota charged against IRP.
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PEPROCESS QuotaProcess; // Process quota was charged to.
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PIO_COMPLETION_ROUTINE RealIrpCompletionRoutine;
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UCHAR RealIrpControl;
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PVOID RealIrpContext;
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PVOID AllocatorStack[IRP_ALLOC_COUNT];
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//
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// The following information is for the assertion routines to read.
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//
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UCHAR TopStackLocation;
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CCHAR PriorityBoost; // Boost from IofCompleteRequest
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UCHAR LastLocation; // Last location from IofCallDriver
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ULONG RefTrackingCount;
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//
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// This field is only set on surrogate IRPs, and contains the locked system
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// VA for the destination of a direct I/O IRP that's being buffered.
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//
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PUCHAR SystemDestVA;
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#if DBG
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IOV_LOG_ENTRY LogEntries[IRP_LOG_ENTRIES];
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ULONG LogEntryHead;
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ULONG LogEntryTail;
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#endif
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PVERIFIER_SETTINGS_SNAPSHOT VerifierSettings;
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PIOV_SESSION_DATA pIovSessionData;
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} IOV_REQUEST_PACKET;
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PIOV_REQUEST_PACKET
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FASTCALL
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VfPacketCreateAndLock(
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IN PIRP Irp
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);
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PIOV_REQUEST_PACKET
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FASTCALL
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VfPacketFindAndLock(
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IN PIRP Irp
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);
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VOID
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FASTCALL
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VfPacketAcquireLock(
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IN PIOV_REQUEST_PACKET IrpTrackingData
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);
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VOID
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FASTCALL
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VfPacketReleaseLock(
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IN PIOV_REQUEST_PACKET IrpTrackingData
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);
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VOID
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FASTCALL
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VfPacketReference(
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IN PIOV_REQUEST_PACKET IovPacket,
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IN IOV_REFERENCE_TYPE IovRefType
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);
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VOID
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FASTCALL
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VfPacketDereference(
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IN PIOV_REQUEST_PACKET IovPacket,
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IN IOV_REFERENCE_TYPE IovRefType
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);
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PIOV_SESSION_DATA
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FASTCALL
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VfPacketGetCurrentSessionData(
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IN PIOV_REQUEST_PACKET IovPacket
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);
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VOID
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FASTCALL
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VfPacketLogEntry(
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IN PIOV_REQUEST_PACKET IovPacket,
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IN IOV_LOG_EVENT IovLogEvent,
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IN PVOID Address,
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IN ULONG_PTR Data
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);
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