Sebastian Lackner : ntoskrnl: Initialize irp.Tail.Overlay.OriginalFileObject with stub file object.
Alexandre Julliard
julliard at wine.codeweavers.com
Thu Jan 15 15:55:41 CST 2015
Module: wine
Branch: master
Commit: cffe06af801471584344462e6118c8bc7ab73b6f
URL: http://source.winehq.org/git/wine.git/?a=commit;h=cffe06af801471584344462e6118c8bc7ab73b6f
Author: Sebastian Lackner <sebastian at fds-team.de>
Date: Mon Nov 10 23:48:14 2014 +0100
ntoskrnl: Initialize irp.Tail.Overlay.OriginalFileObject with stub file object.
---
dlls/ntoskrnl.exe/ntoskrnl.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index c10377a..af1626d 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -143,6 +143,7 @@ static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff,
IRP irp;
MDL mdl;
IO_STACK_LOCATION irpsp;
+ FILE_OBJECT file;
PDRIVER_DISPATCH dispatch = device->DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL];
NTSTATUS status;
LARGE_INTEGER count;
@@ -153,6 +154,7 @@ static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff,
memset( &irp, 0x55, sizeof(irp) );
memset( &irpsp, 0x66, sizeof(irpsp) );
memset( &mdl, 0x77, sizeof(mdl) );
+ memset( &file, 0x88, sizeof(file) );
irp.RequestorMode = UserMode;
if ((code & 3) == METHOD_BUFFERED)
@@ -167,6 +169,7 @@ static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff,
irp.UserBuffer = out_buff;
irp.MdlAddress = &mdl;
irp.Tail.Overlay.s.u2.CurrentStackLocation = &irpsp;
+ irp.Tail.Overlay.OriginalFileObject = &file;
irp.UserIosb = NULL;
irpsp.MajorFunction = IRP_MJ_DEVICE_CONTROL;
@@ -183,6 +186,9 @@ static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff,
mdl.ByteCount = *out_size;
mdl.ByteOffset = 0;
+ file.FsContext = NULL;
+ file.FsContext2 = NULL;
+
device->CurrentIrp = &irp;
KeQueryTickCount( &count ); /* update the global KeTickCount */
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