[RDBSS]

[reactos.git] / reactos / sdk / lib / drivers / rdbsslib / rdbss.c

diff --git a/reactos/sdk/lib/drivers/rdbsslib/rdbss.c b/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
index f63943a..5a9a832 100644 (file)
--- a/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
+++ b/reactos/sdk/lib/drivers/rdbsslib/rdbss.c
@@ -743,53 +743,6 @@ __RxWriteReleaseResources(
     }
 }
 
-NTSTATUS
-NTAPI
-RxAcquireExclusiveFcbResourceInMRx(
-    _Inout_ PMRX_FCB Fcb)
-{
-    UNIMPLEMENTED;
-    return STATUS_NOT_IMPLEMENTED;
-}
-
-BOOLEAN
-NTAPI
-RxAcquireFcbForLazyWrite(
-    PVOID Context,
-    BOOLEAN Wait)
-{
-    UNIMPLEMENTED;
-    return FALSE;
-}
-
-BOOLEAN
-NTAPI
-RxAcquireFcbForReadAhead(
-    PVOID Context,
-    BOOLEAN Wait)
-{
-    UNIMPLEMENTED;
-    return FALSE;
-}
-
-VOID
-NTAPI
-RxAcquireFileForNtCreateSection(
-    PFILE_OBJECT FileObject)
-{
-    UNIMPLEMENTED;
-}
-
-NTSTATUS
-NTAPI
-RxAcquireForCcFlush(
-    PFILE_OBJECT FileObject,
-    PDEVICE_OBJECT DeviceObject)
-{
-    UNIMPLEMENTED;
-    return STATUS_NOT_IMPLEMENTED;
-}
-
 /*
  * @implemented
  */
@@ -1375,6 +1328,7 @@ RxCheckFcbStructuresForAlignment(
     UNIMPLEMENTED;
 }
 
+#if DBG
 NTSTATUS
 RxCheckShareAccess(
     _In_ ACCESS_MASK DesiredAccess,
@@ -1392,6 +1346,7 @@ RxCheckShareAccess(
 
     return IoCheckShareAccess(DesiredAccess, DesiredShareAccess, FileObject, ShareAccess, Update);
 }
+#endif
 
 /*
  * @implemented
@@ -3235,6 +3190,7 @@ RxCommonRead(
 
             if (!NT_SUCCESS(Irp->IoStatus.Status))
             {
+                Status = Irp->IoStatus.Status;
                 _SEH2_LEAVE;
             }
 
@@ -5337,6 +5293,7 @@ RxDriverEntry(
 #endif
 }
 
+#if DBG
 /*
  * @implemented
  */
@@ -5363,6 +5320,7 @@ RxDumpWantedAccess(
 {
     PAGED_CODE();
 }
+#endif
 
 /*
  * @implemented
@@ -5664,6 +5622,11 @@ RxFindOrCreateFcb(
     /* If FCB was not found or is not covering full path, prepare for more work */
     if (Fcb == NULL || Fcb->FcbTableEntry.Path.Length != NetRootName->Length)
     {
+        if (Fcb != NULL)
+        {
+            DPRINT1("FCB was found and it's not covering the whole path: %wZ - %wZ\n", &Fcb->FcbTableEntry.Path, NetRootName);
+        }
+
         if (!AcquiredExclusive)
         {
             RxReleaseFcbTableLock(&NetRoot->FcbTable);
@@ -6354,7 +6317,7 @@ RxFspDispatch(
         RxContext->LastExecutionThread = PsGetCurrentThread();
         SetFlag(RxContext->Flags, (RX_CONTEXT_FLAG_IN_FSP | RX_CONTEXT_FLAG_WAIT));
 
-        DPRINT("Dispatch: MN: %d, Ctxt: %p, IRP: %p, THRD: %lx #%lx", RxContext->MinorFunction,
+        DPRINT("Dispatch: MN: %d, Ctxt: %p, IRP: %p, THRD: %lx #%lx\n", RxContext->MinorFunction,
                RxContext, RxContext->CurrentIrp, RxContext->LastExecutionThread,
                RxContext->SerialNumber);
 
@@ -7533,6 +7496,9 @@ Leave:
     return Status;
 }
 
+/*
+ * @implemented
+ */
 NTSTATUS
 NTAPI
 RxPrepareToReparseSymbolicLink(
@@ -7542,8 +7508,74 @@ RxPrepareToReparseSymbolicLink(
     BOOLEAN NewPathIsAbsolute,
     PBOOLEAN ReparseRequired)
 {
-    UNIMPLEMENTED;
-    return STATUS_NOT_IMPLEMENTED;
+    PWSTR NewBuffer;
+    USHORT NewLength;
+    PFILE_OBJECT FileObject;
+
+    /* Assume no reparse is required first */
+    *ReparseRequired = FALSE;
+
+    /* Only supported for IRP_MJ_CREATE */
+    if (RxContext->MajorFunction != IRP_MJ_CREATE)
+    {
+        return STATUS_INVALID_PARAMETER;
+    }
+
+    /* If symbolic link is not embedded, and DELETE is specified, fail */
+    if (!SymbolicLinkEmbeddedInOldPath)
+    {
+        /* Excepted if DELETE is the only flag specified, then, open has to succeed
+         * See: https://msdn.microsoft.com/en-us/library/windows/hardware/ff554649(v=vs.85).aspx (remarks)
+         */
+        if (BooleanFlagOn(RxContext->Create.NtCreateParameters.DesiredAccess, DELETE) &&
+            BooleanFlagOn(RxContext->Create.NtCreateParameters.DesiredAccess, ~DELETE))
+        {
+            return STATUS_ACCESS_DENIED;
+        }
+    }
+
+    /* At that point, assume reparse will be required */
+    *ReparseRequired = TRUE;
+
+    /* If new path isn't absolute, it's up to us to make it absolute */
+    if (!NewPathIsAbsolute)
+    {
+        /* The prefix will be \Device\Mup */
+        NewLength = NewPath->Length + (sizeof(L"\\Device\\Mup") - sizeof(UNICODE_NULL));
+        NewBuffer = ExAllocatePoolWithTag(PagedPool | POOL_COLD_ALLOCATION, NewLength,
+                                          RX_MISC_POOLTAG);
+        if (NewBuffer == NULL)
+        {
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
+
+        /* Copy data for the new path */
+        RtlMoveMemory(NewBuffer, L"\\Device\\Mup", (sizeof(L"\\Device\\Mup") - sizeof(UNICODE_NULL)));
+        RtlMoveMemory(Add2Ptr(NewBuffer, (sizeof(L"\\Device\\Mup") - sizeof(UNICODE_NULL))),
+                      NewPath->Buffer, NewPath->Length);
+    }
+    /* Otherwise, use caller path as it */
+    else
+    {
+        NewLength = NewPath->Length;
+        NewBuffer = NewPath->Buffer;
+    }
+
+    /* Get the FILE_OBJECT we'll modify */
+    FileObject = RxContext->CurrentIrpSp->FileObject;
+
+    /* Free old path first */
+    ExFreePoolWithTag(FileObject->FileName.Buffer, 0);
+    /* And setup new one */
+    FileObject->FileName.Length = NewLength;
+    FileObject->FileName.MaximumLength = NewLength;
+    FileObject->FileName.Buffer = NewBuffer;
+
+    /* And set reparse flag */
+    SetFlag(RxContext->Create.Flags, RX_CONTEXT_CREATE_FLAG_REPARSE);
+
+    /* Done! */
+    return STATUS_SUCCESS;
 }
 
 /*
@@ -8157,40 +8189,6 @@ RxRegisterMinirdr(
     return STATUS_SUCCESS;
 }
 
-VOID
-NTAPI
-RxReleaseFcbFromLazyWrite(
-    PVOID Context)
-{
-    UNIMPLEMENTED;
-}
-
-VOID
-NTAPI
-RxReleaseFcbFromReadAhead(
-    PVOID Context)
-{
-    UNIMPLEMENTED;
-}
-
-VOID
-NTAPI
-RxReleaseFileForNtCreateSection(
-    PFILE_OBJECT FileObject)
-{
-    UNIMPLEMENTED;
-}
-
-NTSTATUS
-NTAPI
-RxReleaseForCcFlush(
-    PFILE_OBJECT FileObject,
-    PDEVICE_OBJECT DeviceObject)
-{
-    UNIMPLEMENTED;
-    return STATUS_NOT_IMPLEMENTED;
-}
-
 /*
  * @implemented
  */
@@ -8245,6 +8243,7 @@ RxRemoveOverflowEntry(
     return Context;
 }
 
+#if DBG
 /*
  * @implemented
  */
@@ -8261,6 +8260,7 @@ RxRemoveShareAccess(
     IoRemoveShareAccess(FileObject, ShareAccess);
     RxDumpCurrentAccess(where, "after", wherelogtag, ShareAccess);
 }
+#endif
 
 /*
  * @implemented
@@ -8645,6 +8645,7 @@ RxSetRenameInfo(
     return STATUS_NOT_IMPLEMENTED;
 }
 
+#if DBG
 /*
  * @implemented
  */
@@ -8663,6 +8664,7 @@ RxSetShareAccess(
     IoSetShareAccess(DesiredAccess, DesiredShareAccess, FileObject, ShareAccess);
     RxDumpCurrentAccess(where, "after", wherelogtag, ShareAccess);
 }
+#endif
 
 NTSTATUS
 RxSetSimpleInfo(
@@ -8920,6 +8922,7 @@ RxTryToBecomeTheTopLevelIrp(
     return TRUE;
 }
 
+#if DBG
 /*
  * @implemented
  */
@@ -8936,6 +8939,7 @@ RxUpdateShareAccess(
     IoUpdateShareAccess(FileObject, ShareAccess);
     RxDumpCurrentAccess(where, "after", wherelogtag, ShareAccess);
 }
+#endif
 
 /*
  * @implemented