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Classes
struct	_RX_TOPLEVELIRP_CONTEXT

struct	_NT_CREATE_PARAMETERS

struct	_RX_CONTEXT

Macros
#define	RX_TOPLEVELIRP_CONTEXT_SIGNATURE 'LTxR'

#define	RxInitializeTopLevelIrpContext(a, b, c) __RxInitializeTopLevelIrpContext(a,b,c,0)

#define	MRX_CONTEXT_FIELD_COUNT 4

#define	RX_CONTEXT_PRESERVED_FLAGS

#define	RX_CONTEXT_INITIALIZATION_FLAGS

#define	RxSaveAndSetExceptionNoBreakpointFlag(R, F)

#define	RxRestoreExceptionNoBreakpointFlag(R, F)

#define	RxItsTheSameContext() { NOTHING; }

#define	MINIRDR_CALL_THROUGH(STATUS, DISPATCH, FUNC, ARGLIST)

#define	MINIRDR_CALL(STATUS, CONTEXT, DISPATCH, FUNC, ARGLIST)

#define	RxWaitSync(RxContext)

#define	RxSignalSynchronousWaiter(RxContext)

#define	RxInsertContextInSerializationQueue(SerializationQueue, RxContext)

#define	RxTransferList(Destination, Source)

#define	RxTransferListWithMutex(Destination, Source, Mutex)

#define	RxDereferenceAndDeleteRxContext(RXCONTEXT)

Typedefs
typedef struct _RX_TOPLEVELIRP_CONTEXT	RX_TOPLEVELIRP_CONTEXT

typedef struct _RX_TOPLEVELIRP_CONTEXT *	PRX_TOPLEVELIRP_CONTEXT

typedef NTSTATUS(NTAPI *	PRX_DISPATCH) (_In_ PRX_CONTEXT RxContext)

typedef struct _DFS_NAME_CONTEXT_ *	PDFS_NAME_CONTEXT

typedef struct _NT_CREATE_PARAMETERS	NT_CREATE_PARAMETERS

typedef struct _NT_CREATE_PARAMETERS *	PNT_CREATE_PARAMETERS

typedef struct _RX_CONTEXT	RX_CONTEXT

typedef struct _RX_CONTEXT *	PRX_CONTEXT

Enumerations
enum	RX_CONTEXT_FLAGS { RX_CONTEXT_FLAG_FROM_POOL = 0x00000001 , RX_CONTEXT_FLAG_WAIT = 0x00000002 , RX_CONTEXT_FLAG_WRITE_THROUGH = 0x00000004 , RX_CONTEXT_FLAG_FLOPPY = 0x00000008 , RX_CONTEXT_FLAG_RECURSIVE_CALL = 0x00000010 , RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL = 0x00000020 , RX_CONTEXT_FLAG_DEFERRED_WRITE = 0x00000040 , RX_CONTEXT_FLAG_VERIFY_READ = 0x00000080 , RX_CONTEXT_FLAG_STACK_IO_CONTEZT = 0x00000100 , RX_CONTEXT_FLAG_IN_FSP = 0x00000200 , RX_CONTEXT_FLAG_CREATE_MAILSLOT = 0x00000400 , RX_CONTEXT_FLAG_MAILSLOT_REPARSE = 0x00000800 , RX_CONTEXT_FLAG_ASYNC_OPERATION = 0x00001000 , RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP = 0x00002000 , RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION = 0x00004000 , RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE = 0x00008000 , RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE = 0x00010000 , RX_CONTEXT_FLAG_MINIRDR_INVOKED = 0x00020000 , RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE = 0x00040000 , RX_CONTEXT_FLAG_CANCELLED = 0x00080000 , RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS = 0x00100000 , RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED = 0x00200000 , RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK = 0x00400000 , RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME = 0x00800000 , RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE = 0x01000000 , RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT = 0x02000000 , RX_CONTEXT_FLAG_NEEDRECONNECT = 0x04000000 , RX_CONTEXT_FLAG_MUST_SUCCEED = 0x08000000 , RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING = 0x10000000 , RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED = 0x20000000 , RX_CONTEXT_FLAG_MINIRDR_INITIATED = 0x80000000 }

enum	RX_CONTEXT_CREATE_FLAGS { RX_CONTEXT_CREATE_FLAG_UNC_NAME = 0x1 , RX_CONTEXT_CREATE_FLAG_STRIPPED_TRAILING_BACKSLASH = 0x2 , RX_CONTEXT_CREATE_FLAG_ADDEDBACKSLASH = 0x4 , RX_CONTEXT_CREATE_FLAG_REPARSE = 0x8 , RX_CONTEXT_CREATE_FLAG_SPECIAL_PATH = 0x10 }

enum	RX_CONTEXT_LOWIO_FLAGS { RXCONTEXT_FLAG4LOWIO_PIPE_OPERATION = 0x1 , RXCONTEXT_FLAG4LOWIO_PIPE_SYNC_OPERATION = 0x2 , RXCONTEXT_FLAG4LOWIO_READAHEAD = 0x4 , RXCONTEXT_FLAG4LOWIO_THIS_READ_ENLARGED = 0x8 , RXCONTEXT_FLAG4LOWIO_THIS_IO_BUFFERED = 0x10 , RXCONTEXT_FLAG4LOWIO_LOCK_FCB_RESOURCE_HELD = 0x20 , RXCONTEXT_FLAG4LOWIO_LOCK_WAS_QUEUED_IN_LOCKMANAGER = 0x40 , RXCONTEXT_FLAG4LOWIO_THIS_IO_FAST = 0x80 , RXCONTEXT_FLAG4LOWIO_LOCK_OPERATION_COMPLETED = 0x100 , RXCONTEXT_FLAG4LOWIO_LOCK_BUFFERED_ON_ENTRY = 0x200 }

Functions
BOOLEAN	RxTryToBecomeTheTopLevelIrp (_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext, _In_ PIRP Irp, _In_ PRDBSS_DEVICE_OBJECT RxDeviceObject, _In_ BOOLEAN ForceTopLevel)

VOID	__RxInitializeTopLevelIrpContext (_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext, _In_ PIRP Irp, _In_ PRDBSS_DEVICE_OBJECT RxDeviceObject, _In_ ULONG Flags)

PIRP	RxGetTopIrpIfRdbssIrp (VOID)

PRDBSS_DEVICE_OBJECT	RxGetTopDeviceObjectIfRdbssIrp (VOID)

VOID	RxUnwindTopLevelIrp (_Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext)

BOOLEAN	RxIsThisTheTopLevelIrp (_In_ PIRP Irp)

FORCEINLINE PRX_CONTEXT	RxRemoveFirstContextFromSerializationQueue (PLIST_ENTRY SerializationQueue)

NTSTATUS	RxCancelNotifyChangeDirectoryRequestsForVNetRoot (PV_NET_ROOT VNetRoot, BOOLEAN ForceFilesClosed)

VOID	RxCancelNotifyChangeDirectoryRequestsForFobx (PFOBX Fobx)

VOID NTAPI	RxInitializeContext (_In_ PIRP Irp, _In_ PRDBSS_DEVICE_OBJECT RxDeviceObject, _In_ ULONG InitialContextFlags, _Inout_ PRX_CONTEXT RxContext)

PRX_CONTEXT NTAPI	RxCreateRxContext (_In_ PIRP Irp, _In_ PRDBSS_DEVICE_OBJECT RxDeviceObject, _In_ ULONG InitialContextFlags)

VOID NTAPI	RxPrepareContextForReuse (_Inout_ PRX_CONTEXT RxContext)

VOID NTAPI	RxDereferenceAndDeleteRxContext_Real (_In_ PRX_CONTEXT RxContext)

VOID NTAPI	RxReinitializeContext (_Inout_ PRX_CONTEXT RxContext)

VOID NTAPI	RxResumeBlockedOperations_Serially (_Inout_ PRX_CONTEXT RxContext, _Inout_ PLIST_ENTRY BlockingIoQ)

VOID	RxResumeBlockedOperations_ALL (_Inout_ PRX_CONTEXT RxContext)

VOID	RxCancelBlockingOperation (_Inout_ PRX_CONTEXT RxContext)

VOID	RxRemoveOperationFromBlockingQueue (_Inout_ PRX_CONTEXT RxContext)

Variables
NPAGED_LOOKASIDE_LIST	RxContextLookasideList

FAST_MUTEX	RxContextPerFileSerializationMutex

Macro Definition Documentation

◆ MINIRDR_CALL

#define MINIRDR_CALL	(	STATUS,
		CONTEXT,
		DISPATCH,
		FUNC,
		ARGLIST
	)

Value:

{                                                                        \
    ASSERT(DISPATCH);                                                    \
    ASSERT(NodeType(DISPATCH) == RDBSS_NTC_MINIRDR_DISPATCH);            \
    if (DISPATCH->FUNC == NULL)                                          \
    {                                                                    \
        STATUS = STATUS_NOT_IMPLEMENTED;                                 \
    }                                                                    \
    else                                                                 \
    {                                                                    \
        if (!BooleanFlagOn((CONTEXT)->Flags, RX_CONTEXT_FLAG_CANCELLED)) \
    {                                                                \
            RtlZeroMemory(&((CONTEXT)->MRxContext[0]),                   \
                          sizeof((CONTEXT)->MRxContext));                \
            STATUS = DISPATCH->FUNC ARGLIST;                             \
        }                                                                \
        else                                                             \
        {                                                                \
            STATUS = STATUS_CANCELLED;                                   \
        }                                                                \
    }                                                                    \
}

Definition at line 389 of file rxcontx.h.

◆ MINIRDR_CALL_THROUGH

#define MINIRDR_CALL_THROUGH	(	STATUS,
		DISPATCH,
		FUNC,
		ARGLIST
	)

Value:

{                                                             \
    ASSERT(DISPATCH);                                         \
    ASSERT(NodeType(DISPATCH) == RDBSS_NTC_MINIRDR_DISPATCH); \
    if (DISPATCH->FUNC == NULL)                               \
    {                                                         \
        STATUS = STATUS_NOT_IMPLEMENTED;                      \
    }                                                         \
    else                                                      \
    {                                                         \
        STATUS = DISPATCH->FUNC ARGLIST;                      \
    }                                                         \
}

Definition at line 375 of file rxcontx.h.

◆ MRX_CONTEXT_FIELD_COUNT

#define MRX_CONTEXT_FIELD_COUNT 4

Definition at line 68 of file rxcontx.h.

◆ RX_CONTEXT_INITIALIZATION_FLAGS

#define RX_CONTEXT_INITIALIZATION_FLAGS

Value:

                                         (RX_CONTEXT_FLAG_WAIT |         \
                                         RX_CONTEXT_FLAG_MUST_SUCCEED | \
                                         RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING)

Definition at line 318 of file rxcontx.h.

◆ RX_CONTEXT_PRESERVED_FLAGS

#define RX_CONTEXT_PRESERVED_FLAGS

Value:

                                    (RX_CONTEXT_FLAG_FROM_POOL |              \
                                    RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED | \
                                    RX_CONTEXT_FLAG_IN_FSP)

Definition at line 314 of file rxcontx.h.

◆ RX_TOPLEVELIRP_CONTEXT_SIGNATURE

#define RX_TOPLEVELIRP_CONTEXT_SIGNATURE 'LTxR'

Definition at line 4 of file rxcontx.h.

◆ RxDereferenceAndDeleteRxContext

#define RxDereferenceAndDeleteRxContext ( RXCONTEXT )

Value:

{ \
    RxDereferenceAndDeleteRxContext_Real((RXCONTEXT)); \
}

Definition at line 514 of file rxcontx.h.

◆ RxInitializeTopLevelIrpContext

#define RxInitializeTopLevelIrpContext	(	a,
		b,
		c
	)	__RxInitializeTopLevelIrpContext(a,b,c,0)

Definition at line 38 of file rxcontx.h.

◆ RxInsertContextInSerializationQueue

#define RxInsertContextInSerializationQueue	(	SerializationQueue,
		RxContext
	)

Value:

(RxContext)->Flags |= RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE; \

InsertTailList(SerializationQueue, &((RxContext)->RxContextSerializationQLinks))

RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE

@ RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE

Definition: rxcontx.h:305

Definition at line 421 of file rxcontx.h.

◆ RxItsTheSameContext

#define RxItsTheSameContext ( ) { NOTHING; }

Definition at line 370 of file rxcontx.h.

◆ RxRestoreExceptionNoBreakpointFlag

#define RxRestoreExceptionNoBreakpointFlag	(	R,
		F
	)

Definition at line 358 of file rxcontx.h.

◆ RxSaveAndSetExceptionNoBreakpointFlag

#define RxSaveAndSetExceptionNoBreakpointFlag	(	R,
		F
	)

Definition at line 357 of file rxcontx.h.

◆ RxSignalSynchronousWaiter

#define RxSignalSynchronousWaiter ( RxContext )

Value:

(RxContext)->Flags &= ~RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS; \

KeSetEvent(&(RxContext)->SyncEvent, 0, FALSE)

FALSE

#define FALSE

Definition: types.h:117

RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS

@ RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS

Definition: rxcontx.h:301

Definition at line 417 of file rxcontx.h.

◆ RxTransferList

#define RxTransferList	(	Destination,
		Source
	)

Value:

    if (IsListEmpty((Source)))                      \
        InitializeListHead((Destination));          \
    else                                            \
    {                                               \
       *(Destination) = *(Source);                  \
       (Destination)->Flink->Blink = (Destination); \
       (Destination)->Blink->Flink = (Destination); \
       InitializeListHead((Source));                \
    }

Definition at line 449 of file rxcontx.h.

◆ RxTransferListWithMutex

#define RxTransferListWithMutex	(	Destination,
		Source,
		Mutex
	)

Value:

    {                                                       \
        ExAcquireFastMutex(Mutex);                          \
        RxTransferList(Destination, Source);                \
        ExReleaseFastMutex(Mutex);                          \
    }

Definition at line 460 of file rxcontx.h.

◆ RxWaitSync

#define RxWaitSync ( RxContext )

Value:

    (RxContext)->Flags |= RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS; \
    KeWaitForSingleObject(&(RxContext)->SyncEvent,            \
                          Executive, KernelMode, FALSE, NULL)

Definition at line 412 of file rxcontx.h.

Typedef Documentation

◆ NT_CREATE_PARAMETERS

typedef struct _NT_CREATE_PARAMETERS NT_CREATE_PARAMETERS

◆ PDFS_NAME_CONTEXT

typedef struct _DFS_NAME_CONTEXT_* PDFS_NAME_CONTEXT

Definition at line 83 of file rxcontx.h.

◆ PNT_CREATE_PARAMETERS

typedef struct _NT_CREATE_PARAMETERS * PNT_CREATE_PARAMETERS

◆ PRX_CONTEXT

typedef struct _RX_CONTEXT * PRX_CONTEXT

◆ PRX_DISPATCH

typedef NTSTATUS(NTAPI * PRX_DISPATCH) (_In_ PRX_CONTEXT RxContext)

Definition at line 78 of file rxcontx.h.

◆ PRX_TOPLEVELIRP_CONTEXT

typedef struct _RX_TOPLEVELIRP_CONTEXT * PRX_TOPLEVELIRP_CONTEXT

◆ RX_CONTEXT

typedef struct _RX_CONTEXT RX_CONTEXT

◆ RX_TOPLEVELIRP_CONTEXT

typedef struct _RX_TOPLEVELIRP_CONTEXT RX_TOPLEVELIRP_CONTEXT

Enumeration Type Documentation

◆ RX_CONTEXT_CREATE_FLAGS

enum RX_CONTEXT_CREATE_FLAGS

Enumerator
RX_CONTEXT_CREATE_FLAG_UNC_NAME
RX_CONTEXT_CREATE_FLAG_STRIPPED_TRAILING_BACKSLASH
RX_CONTEXT_CREATE_FLAG_ADDEDBACKSLASH
RX_CONTEXT_CREATE_FLAG_REPARSE
RX_CONTEXT_CREATE_FLAG_SPECIAL_PATH

Definition at line 322 of file rxcontx.h.

{
    RX_CONTEXT_CREATE_FLAG_UNC_NAME = 0x1,
    RX_CONTEXT_CREATE_FLAG_STRIPPED_TRAILING_BACKSLASH = 0x2,
    RX_CONTEXT_CREATE_FLAG_ADDEDBACKSLASH = 0x4,
    RX_CONTEXT_CREATE_FLAG_REPARSE = 0x8,
    RX_CONTEXT_CREATE_FLAG_SPECIAL_PATH = 0x10,
} RX_CONTEXT_CREATE_FLAGS;

◆ RX_CONTEXT_FLAGS

enum RX_CONTEXT_FLAGS

Enumerator
RX_CONTEXT_FLAG_FROM_POOL
RX_CONTEXT_FLAG_WAIT
RX_CONTEXT_FLAG_WRITE_THROUGH
RX_CONTEXT_FLAG_FLOPPY
RX_CONTEXT_FLAG_RECURSIVE_CALL
RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL
RX_CONTEXT_FLAG_DEFERRED_WRITE
RX_CONTEXT_FLAG_VERIFY_READ
RX_CONTEXT_FLAG_STACK_IO_CONTEZT
RX_CONTEXT_FLAG_IN_FSP
RX_CONTEXT_FLAG_CREATE_MAILSLOT
RX_CONTEXT_FLAG_MAILSLOT_REPARSE
RX_CONTEXT_FLAG_ASYNC_OPERATION
RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP
RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION
RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE
RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE
RX_CONTEXT_FLAG_MINIRDR_INVOKED
RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE
RX_CONTEXT_FLAG_CANCELLED
RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS
RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED
RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK
RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME
RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE
RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT
RX_CONTEXT_FLAG_NEEDRECONNECT
RX_CONTEXT_FLAG_MUST_SUCCEED
RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING
RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED
RX_CONTEXT_FLAG_MINIRDR_INITIATED

Definition at line 279 of file rxcontx.h.

{
    RX_CONTEXT_FLAG_FROM_POOL = 0x00000001,
    RX_CONTEXT_FLAG_WAIT = 0x00000002,
    RX_CONTEXT_FLAG_WRITE_THROUGH = 0x00000004,
    RX_CONTEXT_FLAG_FLOPPY = 0x00000008,
    RX_CONTEXT_FLAG_RECURSIVE_CALL = 0x00000010,
    RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL = 0x00000020,
    RX_CONTEXT_FLAG_DEFERRED_WRITE = 0x00000040,
    RX_CONTEXT_FLAG_VERIFY_READ = 0x00000080,
    RX_CONTEXT_FLAG_STACK_IO_CONTEZT = 0x00000100,
    RX_CONTEXT_FLAG_IN_FSP = 0x00000200,
    RX_CONTEXT_FLAG_CREATE_MAILSLOT = 0x00000400,
    RX_CONTEXT_FLAG_MAILSLOT_REPARSE = 0x00000800,
    RX_CONTEXT_FLAG_ASYNC_OPERATION = 0x00001000,
    RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP = 0x00002000,
    RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION = 0x00004000,
    RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE = 0x00008000,
    RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE = 0x00010000,
    RX_CONTEXT_FLAG_MINIRDR_INVOKED = 0x00020000,
    RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE = 0x00040000,
    RX_CONTEXT_FLAG_CANCELLED = 0x00080000,
    RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS = 0x00100000,
    RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED = 0x00200000,
    RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK = 0x00400000,
    RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME = 0x00800000,
    RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE = 0x01000000,
    RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT = 0x02000000,
    RX_CONTEXT_FLAG_NEEDRECONNECT = 0x04000000,
    RX_CONTEXT_FLAG_MUST_SUCCEED = 0x08000000,
    RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING = 0x10000000,
    RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED = 0x20000000,
    RX_CONTEXT_FLAG_MINIRDR_INITIATED = 0x80000000,
} RX_CONTEXT_FLAGS;

◆ RX_CONTEXT_LOWIO_FLAGS

enum RX_CONTEXT_LOWIO_FLAGS

Enumerator
RXCONTEXT_FLAG4LOWIO_PIPE_OPERATION
RXCONTEXT_FLAG4LOWIO_PIPE_SYNC_OPERATION
RXCONTEXT_FLAG4LOWIO_READAHEAD
RXCONTEXT_FLAG4LOWIO_THIS_READ_ENLARGED
RXCONTEXT_FLAG4LOWIO_THIS_IO_BUFFERED
RXCONTEXT_FLAG4LOWIO_LOCK_FCB_RESOURCE_HELD
RXCONTEXT_FLAG4LOWIO_LOCK_WAS_QUEUED_IN_LOCKMANAGER
RXCONTEXT_FLAG4LOWIO_THIS_IO_FAST
RXCONTEXT_FLAG4LOWIO_LOCK_OPERATION_COMPLETED
RXCONTEXT_FLAG4LOWIO_LOCK_BUFFERED_ON_ENTRY

Definition at line 331 of file rxcontx.h.

             {
    RXCONTEXT_FLAG4LOWIO_PIPE_OPERATION = 0x1,
    RXCONTEXT_FLAG4LOWIO_PIPE_SYNC_OPERATION = 0x2,
    RXCONTEXT_FLAG4LOWIO_READAHEAD = 0x4,
    RXCONTEXT_FLAG4LOWIO_THIS_READ_ENLARGED = 0x8,
    RXCONTEXT_FLAG4LOWIO_THIS_IO_BUFFERED = 0x10,
    RXCONTEXT_FLAG4LOWIO_LOCK_FCB_RESOURCE_HELD = 0x20,
    RXCONTEXT_FLAG4LOWIO_LOCK_WAS_QUEUED_IN_LOCKMANAGER = 0x40,
    RXCONTEXT_FLAG4LOWIO_THIS_IO_FAST = 0x80,
    RXCONTEXT_FLAG4LOWIO_LOCK_OPERATION_COMPLETED = 0x100,
    RXCONTEXT_FLAG4LOWIO_LOCK_BUFFERED_ON_ENTRY = 0x200
} RX_CONTEXT_LOWIO_FLAGS;

Function Documentation

◆ __RxInitializeTopLevelIrpContext()

VOID __RxInitializeTopLevelIrpContext	(	_Inout_ PRX_TOPLEVELIRP_CONTEXT	TopLevelContext,
		_In_ PIRP	Irp,
		_In_ PRDBSS_DEVICE_OBJECT	RxDeviceObject,
		_In_ ULONG	Flags
	)

◆ RxCancelBlockingOperation()

VOID RxCancelBlockingOperation ( _Inout_ PRX_CONTEXT RxContext )

Referenced by RxpCancelRoutine().

◆ RxCancelNotifyChangeDirectoryRequestsForFobx()

VOID RxCancelNotifyChangeDirectoryRequestsForFobx ( PFOBX Fobx )

Definition at line 963 of file rdbss.c.

{
    KIRQL OldIrql;
    PLIST_ENTRY Entry;
    PRX_CONTEXT Context;
    LIST_ENTRY ContextsToCancel;
 
    /* Init a list for the contexts to cancel */
    InitializeListHead(&ContextsToCancel);
 
    /* Lock our list lock */
    KeAcquireSpinLock(&RxStrucSupSpinLock, &OldIrql);
 
    /* Now, browse all the active contexts, to find the associated ones */
    Entry = RxActiveContexts.Flink;
    while (Entry != &RxActiveContexts)
    {
        Context = CONTAINING_RECORD(Entry, RX_CONTEXT, ContextListEntry);
        Entry = Entry->Flink;
 
        /* Not the IRP we're looking for, ignore */
        if (Context->MajorFunction != IRP_MJ_DIRECTORY_CONTROL ||
            Context->MinorFunction != IRP_MN_NOTIFY_CHANGE_DIRECTORY)
        {
            continue;
        }
 
        /* Not the FOBX we're looking for, ignore */
        if ((PFOBX)Context->pFobx != Fobx)
        {
            continue;
        }
 
        /* No cancel routine (can't be cancel, then), ignore */
        if (Context->MRxCancelRoutine == NULL)
        {
            continue;
        }
 
        /* Mark our context as cancelled */
        SetFlag(Context->Flags, RX_CONTEXT_FLAG_CANCELLED);
 
        /* Move it to our list */
        RemoveEntryList(&Context->ContextListEntry);
        InsertTailList(&ContextsToCancel, &Context->ContextListEntry);
 
        InterlockedIncrement((volatile long *)&Context->ReferenceCount);
    }
 
    /* Done with the contexts */
    KeReleaseSpinLock(&RxStrucSupSpinLock, OldIrql);
 
    /* Now, handle all our "extracted" contexts */
    while (!IsListEmpty(&ContextsToCancel))
    {
        Entry = RemoveHeadList(&ContextsToCancel);
        Context = CONTAINING_RECORD(Entry, RX_CONTEXT, ContextListEntry);
 
        /* If they had an associated IRP (should be always true) */
        if (Context->CurrentIrp != NULL)
        {
            /* Then, call cancel routine */
            ASSERT(Context->MRxCancelRoutine != NULL);
            DPRINT1("Canceling %p with %p\n", Context, Context->MRxCancelRoutine);
            Context->MRxCancelRoutine(Context);
        }
 
        /* And delete the context */
        RxDereferenceAndDeleteRxContext(Context);
    }
}

Referenced by RxCommonCleanup().

◆ RxCancelNotifyChangeDirectoryRequestsForVNetRoot()

NTSTATUS RxCancelNotifyChangeDirectoryRequestsForVNetRoot	(	PV_NET_ROOT	VNetRoot,
		BOOLEAN	ForceFilesClosed
	)

Definition at line 1040 of file rdbss.c.

{
    KIRQL OldIrql;
    NTSTATUS Status;
    PLIST_ENTRY Entry;
    PRX_CONTEXT Context;
    LIST_ENTRY ContextsToCancel;
 
    /* Init a list for the contexts to cancel */
    InitializeListHead(&ContextsToCancel);
 
    /* Lock our list lock */
    KeAcquireSpinLock(&RxStrucSupSpinLock, &OldIrql);
 
    /* Assume success */
    Status = STATUS_SUCCESS;
 
    /* Now, browse all the active contexts, to find the associated ones */
    Entry = RxActiveContexts.Flink;
    while (Entry != &RxActiveContexts)
    {
        Context = CONTAINING_RECORD(Entry, RX_CONTEXT, ContextListEntry);
        Entry = Entry->Flink;
 
        /* Not the IRP we're looking for, ignore */
        if (Context->MajorFunction != IRP_MJ_DIRECTORY_CONTROL ||
            Context->MinorFunction != IRP_MN_NOTIFY_CHANGE_DIRECTORY)
        {
            continue;
        }
 
        /* Not the VNetRoot we're looking for, ignore */
        if (Context->pFcb == NULL ||
            (PV_NET_ROOT)Context->NotifyChangeDirectory.pVNetRoot != VNetRoot)
        {
            continue;
        }
 
        /* No cancel routine (can't be cancel, then), ignore */
        if (Context->MRxCancelRoutine == NULL)
        {
            continue;
        }
 
        /* At that point, we found a matching context
         * If we're not asked to force close, then fail - it's still open
         */
        if (!ForceFilesClosed)
        {
            Status = STATUS_FILES_OPEN;
            break;
        }
 
        /* Mark our context as cancelled */
        SetFlag(Context->Flags, RX_CONTEXT_FLAG_CANCELLED);
 
        /* Move it to our list */
        RemoveEntryList(&Context->ContextListEntry);
        InsertTailList(&ContextsToCancel, &Context->ContextListEntry);
 
        InterlockedIncrement((volatile long *)&Context->ReferenceCount);
    }
 
    /* Done with the contexts */
    KeReleaseSpinLock(&RxStrucSupSpinLock, OldIrql);
 
    if (Status != STATUS_SUCCESS)
    {
        return Status;
    }
 
    /* Now, handle all our "extracted" contexts */
    while (!IsListEmpty(&ContextsToCancel))
    {
        Entry = RemoveHeadList(&ContextsToCancel);
        Context = CONTAINING_RECORD(Entry, RX_CONTEXT, ContextListEntry);
 
        /* If they had an associated IRP (should be always true) */
        if (Context->CurrentIrp != NULL)
        {
            /* Then, call cancel routine */
            ASSERT(Context->MRxCancelRoutine != NULL);
            DPRINT1("Canceling %p with %p\n", Context, Context->MRxCancelRoutine);
            Context->MRxCancelRoutine(Context);
        }
 
        /* And delete the context */
        RxDereferenceAndDeleteRxContext(Context);
    }
 
    return Status;
}

Referenced by RxFinalizeConnection().

◆ RxCreateRxContext()

PRX_CONTEXT NTAPI RxCreateRxContext	(	_In_ PIRP	Irp,
		_In_ PRDBSS_DEVICE_OBJECT	RxDeviceObject,
		_In_ ULONG	InitialContextFlags
	)

Referenced by nfs41_driver_unload(), RxCloseAssociatedSrvOpen(), RxCommonCleanup(), and RxFsdCommonDispatch().

◆ RxDereferenceAndDeleteRxContext_Real()

VOID NTAPI RxDereferenceAndDeleteRxContext_Real ( _In_ PRX_CONTEXT RxContext )

Referenced by RxCommonDeviceControl(), RxCommonDirectoryControl(), and RxpCancelRoutine().

◆ RxGetTopDeviceObjectIfRdbssIrp()

PRDBSS_DEVICE_OBJECT RxGetTopDeviceObjectIfRdbssIrp ( VOID )

Definition at line 6826 of file rdbss.c.

{
    PIRP TopLevelIrp;
    PRDBSS_DEVICE_OBJECT TopDevice = NULL;
 
    TopLevelIrp = IoGetTopLevelIrp();
    if (RxIsThisAnRdbssTopLevelContext((PRX_TOPLEVELIRP_CONTEXT)TopLevelIrp))
    {
        TopDevice = ((PRX_TOPLEVELIRP_CONTEXT)TopLevelIrp)->RxDeviceObject;
    }
 
    return TopDevice;
}

Referenced by RxInitializeContext().

◆ RxGetTopIrpIfRdbssIrp()

PIRP RxGetTopIrpIfRdbssIrp ( VOID )

Definition at line 6845 of file rdbss.c.

{
    PIRP Irp = NULL;
    PRX_TOPLEVELIRP_CONTEXT TopLevel;
 
    TopLevel = (PRX_TOPLEVELIRP_CONTEXT)IoGetTopLevelIrp();
    if (RxIsThisAnRdbssTopLevelContext(TopLevel))
    {
        Irp = TopLevel->Irp;
    }
 
    return Irp;
}

Referenced by RxCommonWrite(), RxReleaseFcbFromLazyWrite(), and RxReleaseFcbFromReadAhead().

◆ RxInitializeContext()

VOID NTAPI RxInitializeContext	(	_In_ PIRP	Irp,
		_In_ PRDBSS_DEVICE_OBJECT	RxDeviceObject,
		_In_ ULONG	InitialContextFlags,
		_Inout_ PRX_CONTEXT	RxContext
	)

◆ RxIsThisTheTopLevelIrp()

BOOLEAN RxIsThisTheTopLevelIrp ( _In_ PIRP Irp )

Referenced by RxAcquireFcbForLazyWrite(), RxAcquireFcbForReadAhead(), and RxInitializeContext().

◆ RxPrepareContextForReuse()

VOID NTAPI RxPrepareContextForReuse ( _Inout_ PRX_CONTEXT RxContext )

◆ RxReinitializeContext()

VOID NTAPI RxReinitializeContext ( _Inout_ PRX_CONTEXT RxContext )

Referenced by RxCommonCreate().

◆ RxRemoveFirstContextFromSerializationQueue()

FORCEINLINE PRX_CONTEXT RxRemoveFirstContextFromSerializationQueue ( PLIST_ENTRY SerializationQueue )

Definition at line 427 of file rxcontx.h.

{
    if (IsListEmpty(SerializationQueue))
    {
        return NULL;
    }
    else
    {
        PRX_CONTEXT Context = CONTAINING_RECORD(SerializationQueue->Flink,
                                                RX_CONTEXT,
                                                RxContextSerializationQLinks);
 
        RemoveEntryList(SerializationQueue->Flink);
 
        Context->RxContextSerializationQLinks.Flink = NULL;
        Context->RxContextSerializationQLinks.Blink = NULL;
 
        return Context;
    }
}

Referenced by RxUpdateCondition().

◆ RxRemoveOperationFromBlockingQueue()

VOID RxRemoveOperationFromBlockingQueue ( _Inout_ PRX_CONTEXT RxContext )

Referenced by RxCancelOperationInOverflowQueue().

◆ RxResumeBlockedOperations_ALL()

VOID RxResumeBlockedOperations_ALL ( _Inout_ PRX_CONTEXT RxContext )

◆ RxResumeBlockedOperations_Serially()

VOID NTAPI RxResumeBlockedOperations_Serially	(	_Inout_ PRX_CONTEXT	RxContext,
		_Inout_ PLIST_ENTRY	BlockingIoQ
	)

Referenced by RxCommonWrite(), RxLowIoReadShellCompletion(), and RxLowIoWriteShellCompletion().

◆ RxTryToBecomeTheTopLevelIrp()

BOOLEAN RxTryToBecomeTheTopLevelIrp	(	_Inout_ PRX_TOPLEVELIRP_CONTEXT	TopLevelContext,
		_In_ PIRP	Irp,
		_In_ PRDBSS_DEVICE_OBJECT	RxDeviceObject,
		_In_ BOOLEAN	ForceTopLevel
	)

Referenced by RxAcquireFcbForLazyWrite(), and RxAcquireFcbForReadAhead().

◆ RxUnwindTopLevelIrp()

VOID RxUnwindTopLevelIrp ( _Inout_ PRX_TOPLEVELIRP_CONTEXT TopLevelContext )

Referenced by RxReleaseFcbFromLazyWrite(), and RxReleaseFcbFromReadAhead().

Variable Documentation

◆ RxContextLookasideList

NPAGED_LOOKASIDE_LIST RxContextLookasideList

extern

Definition at line 536 of file rdbss.c.

Referenced by RxCreateRxContext(), RxDereferenceAndDeleteRxContext_Real(), and RxDriverEntry().

◆ RxContextPerFileSerializationMutex

FAST_MUTEX RxContextPerFileSerializationMutex

extern

Definition at line 146 of file rxce.c.

Referenced by RxCancelBlockingOperation(), RxDriverEntry(), and RxRemoveOperationFromBlockingQueue().

Classes

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ MINIRDR_CALL

◆ MINIRDR_CALL_THROUGH

◆ MRX_CONTEXT_FIELD_COUNT

◆ RX_CONTEXT_INITIALIZATION_FLAGS

◆ RX_CONTEXT_PRESERVED_FLAGS

◆ RX_TOPLEVELIRP_CONTEXT_SIGNATURE

◆ RxDereferenceAndDeleteRxContext

◆ RxInitializeTopLevelIrpContext

◆ RxInsertContextInSerializationQueue

◆ RxItsTheSameContext

◆ RxRestoreExceptionNoBreakpointFlag

◆ RxSaveAndSetExceptionNoBreakpointFlag

◆ RxSignalSynchronousWaiter

◆ RxTransferList

◆ RxTransferListWithMutex

◆ RxWaitSync

Typedef Documentation

◆ NT_CREATE_PARAMETERS

◆ PDFS_NAME_CONTEXT

◆ PNT_CREATE_PARAMETERS

◆ PRX_CONTEXT

◆ PRX_DISPATCH

◆ PRX_TOPLEVELIRP_CONTEXT

◆ RX_CONTEXT

◆ RX_TOPLEVELIRP_CONTEXT

Enumeration Type Documentation

◆ RX_CONTEXT_CREATE_FLAGS

◆ RX_CONTEXT_FLAGS

◆ RX_CONTEXT_LOWIO_FLAGS

Function Documentation

◆ __RxInitializeTopLevelIrpContext()

◆ RxCancelBlockingOperation()

◆ RxCancelNotifyChangeDirectoryRequestsForFobx()

◆ RxCancelNotifyChangeDirectoryRequestsForVNetRoot()

◆ RxCreateRxContext()

◆ RxDereferenceAndDeleteRxContext_Real()

◆ RxGetTopDeviceObjectIfRdbssIrp()

◆ RxGetTopIrpIfRdbssIrp()

◆ RxInitializeContext()

◆ RxIsThisTheTopLevelIrp()

◆ RxPrepareContextForReuse()

◆ RxReinitializeContext()

◆ RxRemoveFirstContextFromSerializationQueue()

◆ RxRemoveOperationFromBlockingQueue()

◆ RxResumeBlockedOperations_ALL()

◆ RxResumeBlockedOperations_Serially()

◆ RxTryToBecomeTheTopLevelIrp()

◆ RxUnwindTopLevelIrp()

Variable Documentation

◆ RxContextLookasideList

◆ RxContextPerFileSerializationMutex