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ntoskrnl.exe: Don't transfer back input buffer for IRP_MJ_WRITE requests. 

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sebastian Lackner 2016-10-12 18:53:55 +02:00 committed by Alexandre Julliard
parent 4121b223c8
commit 8d799ea57b
2 changed files with 27 additions and 3 deletions
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13
dlls/ntoskrnl.exe/ntoskrnl.c
View File

@ -176,12 +176,15 @@ static HANDLE get_device_manager(void)
static NTSTATUS WINAPI dispatch_irp_completion( DEVICE_OBJECT *device, IRP *irp, void *context )
{
FILE_OBJECT *file = irp->Tail.Overlay.OriginalFileObject;
HANDLE irp_handle = context;
void *out_buff = irp->UserBuffer;
HANDLE handle = context;
if (irp->Flags & IRP_WRITE_OPERATION)
out_buff = NULL; /* do not transfer back input buffer */
SERVER_START_REQ( set_irp_result )
{
req->handle = wine_server_obj_handle( handle );
req->handle = wine_server_obj_handle( irp_handle );
req->status = irp->IoStatus.u.Status;
req->file_ptr = wine_server_client_ptr( file );
if (irp->IoStatus.u.Status >= 0)
@ -193,7 +196,7 @@ static NTSTATUS WINAPI dispatch_irp_completion( DEVICE_OBJECT *device, IRP *irp,
}
SERVER_END_REQ;
HeapFree( GetProcessHeap(), 0, out_buff );
HeapFree( GetProcessHeap(), 0, irp->UserBuffer );
return STATUS_SUCCESS;
}
@ -248,6 +251,7 @@ static NTSTATUS dispatch_create( const irp_params_t *params, void *in_buff, ULON
irp->UserIosb = NULL;
irp->UserEvent = NULL;
irp->Flags |= IRP_CREATE_OPERATION;
dispatch_irp( device, irp, irp_handle );
return STATUS_SUCCESS;
@ -285,6 +289,7 @@ static NTSTATUS dispatch_close( const irp_params_t *params, void *in_buff, ULONG
irp->UserIosb = NULL;
irp->UserEvent = NULL;
irp->Flags |= IRP_CLOSE_OPERATION;
dispatch_irp( device, irp, irp_handle );
HeapFree( GetProcessHeap(), 0, file ); /* FIXME: async close processing not supported */
@ -325,6 +330,7 @@ static NTSTATUS dispatch_read( const irp_params_t *params, void *in_buff, ULONG
irpsp = IoGetNextIrpStackLocation( irp );
irpsp->Parameters.Read.Key = params->read.key;
irp->Flags |= IRP_READ_OPERATION;
dispatch_irp( device, irp, irp_handle );
return STATUS_SUCCESS;
@ -358,6 +364,7 @@ static NTSTATUS dispatch_write( const irp_params_t *params, void *in_buff, ULONG
irpsp = IoGetNextIrpStackLocation( irp );
irpsp->Parameters.Write.Key = params->write.key;
irp->Flags |= IRP_WRITE_OPERATION;
dispatch_irp( device, irp, irp_handle );
return STATUS_SUCCESS;

17
include/ddk/wdm.h
View File

@ -457,6 +457,23 @@ typedef struct _IRP {
} IRP;
typedef struct _IRP *PIRP;
#define IRP_NOCACHE 0x0001
#define IRP_PAGING_IO 0x0002
#define IRP_MOUNT_COMPLETION 0x0002
#define IRP_SYNCHRONOUS_API 0x0004
#define IRP_ASSOCIATED_IRP 0x0008
#define IRP_BUFFERED_IO 0x0010
#define IRP_DEALLOCATE_BUFFER 0x0020
#define IRP_INPUT_OPERATION 0x0040
#define IRP_SYNCHRONOUS_PAGING_IO 0x0040
#define IRP_CREATE_OPERATION 0x0080
#define IRP_READ_OPERATION 0x0100
#define IRP_WRITE_OPERATION 0x0200
#define IRP_CLOSE_OPERATION 0x0400
#define IRP_DEFER_IO_COMPLETION 0x0800
#define IRP_OB_QUERY_NAME 0x1000
#define IRP_HOLD_DEVICE_QUEUE 0x2000
typedef VOID (WINAPI *PINTERFACE_REFERENCE)(
PVOID Context);