Author: pschweitzer
Date: Mon Dec 8 20:44:19 2014
New Revision: 65595
URL: http://svn.reactos.org/svn/reactos?rev=65595&view=rev
Log:
[NTOSKRNL]
Implement support reparse points in IofCompleteRequest()
Modified:
trunk/reactos/ntoskrnl/io/iomgr/irp.c
Modified: trunk/reactos/ntoskrnl/io/iomgr/irp.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/irp.c?rev=65595&r1=65594&r2=65595&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] Mon Dec 8
20:44:19 2014
@@ -1245,6 +1245,7 @@
PIRP MasterIrp;
ULONG Flags;
NTSTATUS ErrorCode = STATUS_SUCCESS;
+ PREPARSE_DATA_BUFFER DataBuffer;
IOTRACE(IO_IRP_DEBUG,
"%s - Completing IRP %p\n",
__FUNCTION__,
@@ -1373,8 +1374,24 @@
return;
}
- /* We don't support this yet */
- ASSERT(Irp->IoStatus.Status != STATUS_REPARSE);
+ /* Check whether we have to reparse */
+ if (Irp->IoStatus.Status == STATUS_REPARSE)
+ {
+ if (Irp->IoStatus.Information > IO_REMOUNT)
+ {
+ /* If that's a reparse tag we understand, save the buffer from
deletion */
+ if (Irp->IoStatus.Information == IO_REPARSE_TAG_MOUNT_POINT)
+ {
+ ASSERT(Irp->Tail.Overlay.AuxiliaryBuffer != NULL);
+ DataBuffer =
(PREPARSE_DATA_BUFFER)Irp->Tail.Overlay.AuxiliaryBuffer;
+ Irp->Tail.Overlay.AuxiliaryBuffer = NULL;
+ }
+ else
+ {
+ Irp->IoStatus.Status = STATUS_IO_REPARSE_TAG_NOT_HANDLED;
+ }
+ }
+ }
/* Check if we have an auxiliary buffer */
if (Irp->Tail.Overlay.AuxiliaryBuffer)
@@ -1428,13 +1445,20 @@
Mdl = Irp->MdlAddress;
while (Mdl)
{
- MmUnlockPages(Mdl);
+ MmUnlockPages(Mdl);
Mdl = Mdl->Next;
}
/* Check if we should exit because of a Deferred I/O (page 168) */
if ((Irp->Flags & IRP_DEFER_IO_COMPLETION) && !(Irp->PendingReturned))
{
+ /* Restore the saved reparse buffer for the caller */
+ if (Irp->IoStatus.Status == STATUS_REPARSE &&
+ Irp->IoStatus.Information == IO_REPARSE_TAG_MOUNT_POINT)
+ {
+ Irp->Tail.Overlay.AuxiliaryBuffer = (PCHAR)DataBuffer;
+ }
+
/*
* Return without queuing the completion APC, since the caller will
* take care of doing its own optimized completion at PASSIVE_LEVEL.
@@ -1462,7 +1486,7 @@
/* Queue it */
KeInsertQueueApc(&Irp->Tail.Apc,
FileObject,
- NULL, /* This is used for REPARSE stuff */
+ DataBuffer,
PriorityBoost);
}
else
@@ -1483,7 +1507,7 @@
/* Queue it */
KeInsertQueueApc(&Irp->Tail.Apc,
FileObject,
- NULL, /* This is used for REPARSE stuff */
+ DataBuffer,
PriorityBoost);
}
else
